1. A bolt fastener comprises a threaded sleeve ring (1), and is characterized in that an inner clamping mechanism (2) is arranged at the lower end of the threaded sleeve ring (1), a control mechanism (3) is arranged on the inner clamping mechanism (2), a hexagonal block (4) is installed on the control mechanism (3), an annular frame (5) is arranged at the lower end of the hexagonal block (4), and an outer clamping mechanism (6) is arranged in the annular frame (5);

the control mechanism (3) comprises a control operation rod (31) arranged on the inner clamping mechanism (2) through a bearing, the upper end of the control operation rod (31) penetrates through the annular frame (5), the upper end of the control operation rod (31) penetrates through the hexagonal block (4) through the bearing to be provided with a rotary rudder (32), the lower end of the control operation rod (31) is provided with a forward thread, a first threaded sleeve (33) is sleeved at the forward thread of the control operation rod (31), the first threaded sleeve (33) is fixedly arranged on the inner clamping mechanism (2), a reverse thread is arranged on the outer wall of the control operation rod (31) positioned in the annular frame (5), a second threaded sleeve (34) is sleeved at the reverse thread, an annular control block (35) is arranged on the second threaded sleeve (34), and a telescopic limiting rod (36) is arranged between the second threaded sleeve (34) and the annular frame (5);

the inner clamping mechanism (2) comprises supporting spring rods (21), the supporting spring rods (21) are uniformly installed on the lower end face of the threaded sleeve ring (1), an inner clamping support plate (22) is installed at the lower end of the supporting spring rods (21), and inner clamping branched chains (23) are uniformly arranged on the inner clamping support plate (22) along the circumferential direction of the inner clamping support plate;

outer card mechanism (6) are including evenly seting up the shifting chute at annular frame (5) lower extreme, evenly set up the flexible groove that corresponds with the shifting chute along its circumference on the lateral wall of annular frame (5), flexible inslot is provided with outer card support (61), outer card support (61) with be provided with outer card spring beam (62) between the inner wall of annular frame (5), outer card support (61) support and lean on the outer wall of annular control piece (35), the lower extreme of outer card support (61) is provided with removes frame (63), remove frame (63) in shifting chute sliding connection.

2. The bolt fastener according to claim 1, characterized in that the inner clamping branch chain (23) comprises an inner clamping sliding groove formed in the inner clamping support plate (22), an inner clamping spring rod (231) is arranged in the inner clamping sliding groove, an inner clamping sliding block (232) is connected to the inner clamping spring rod (231), the inner clamping sliding block (232) is slidably arranged in the inner clamping sliding groove, a butting clamping frame (233) is arranged on the inner clamping sliding block (232), the butting clamping frame (233) is slidably arranged on the inner clamping support plate (22), an inner clamping driven plate (234) is arranged on the butting clamping frame (233), the inner clamping driven plate (234) butts against the extrusion driven plate (235), and the extrusion driven plate (235) is connected with the inner wall of the threaded collar (1) through an extrusion spring rod (236).

3. The bolt fastener according to claim 1, characterized in that the control mechanism (3) further comprises a control sleeve ring (37) arranged at the lower end of the ring frame (5), the outer wall of the control sleeve ring (37) is uniformly provided with a fixed support (38) along the circumferential direction of the control sleeve ring, the fixed support (38) is uniformly provided with a fixed insertion hole from top to bottom, the inner wall of the fixed support (38) is provided with a fixed adjusting plate (39) through a spring, the fixed adjusting plate (39) is uniformly provided with a fixed insertion rod (310), the fixed insertion rod (310) is slidably arranged in the fixed insertion hole, the threaded sleeve ring (1) is provided with a limit sliding frame matched with the fixed support (38), and the fixed support is slidably arranged between the inner walls of the limit sliding frames.

4. The bolt fastener according to claim 1, wherein the control operation rod (31) comprises a first rotating rod (311), a telescopic spring rod (312) and a second rotating rod (313), reverse threads are arranged on the outer wall of the first rotating rod (311), forward threads are arranged on the second rotating rod (313), the first rotating rod (311) is connected with the second rotating rod (313) through the telescopic spring rod (312), the first rotating rod (311) penetrates through the hexagonal block (4) through a bearing, a rotating rudder (32) is arranged at the upper end of the first rotating rod (311), and the lower end of the second rotating rod (313) penetrates through the inner clamping support plate (22) through a linear bearing.

5. A bolt fastener according to claim 2, characterized in that the abutment shelf (233) is of U-shaped configuration, the supporting spring bar (21) being located between the inner walls of the abutment shelf (233).

6. A bolt fastener according to claim 1, characterized in that the diameter of the annular control piece (35) decreases from top to bottom.

7. A bolt fastener according to claim 2, characterized in that the underside of the control collar (37) is a downwardly sloping mechanism from the outside inwards, the control collar (37) resting against the side wall of the squeeze follower plate (235).

8. A bolt fastener according to claim 3, characterized in that the inner wall of the threaded collar (1) is uniformly provided with fixing holes for engaging with the fixing insert rod (310).

9. A bolt fastener according to claim 1, characterized in that the upper end of the hexagonal block (4) is provided with a circular groove and the swivel rudder (32) is located in the circular groove.

10. A bolt fastener according to claim 3, characterised in that the lower end of the moving frame (63) extends between the outer wall of the control collar (37) and the fixed adjustment plate (39).

Background

The bolt is used as a fastener for fixing two parts, the bolt is usually matched with a nut or a threaded hole for use, parts needing to be connected are fixed in the actual production operation process in a threaded connection mode by the bolt, for example, in some mechanical equipment in outdoor operation, the connecting parts of the bolt are fixed in the mode when passing through, maintenance of the connected parts is facilitated, the outdoor operation environment is complex, the bolt can not be normally used due to the influence of the working environment, and therefore the normal work of the mechanical equipment is influenced.

At present, the following problem that exists when connecting bolt is impaired is solved to current mechanical equipment, one, the bolt specification is various different in size, need prepare the bolt of multiple specification, improved the cost of mechanical equipment maintenance, need the staff to select the bolt that accords with the specification to install, and mechanical equipment this moment has been because bolted connection goes wrong, and the stability of its short time internal work can't be guaranteed to ordinary bolted connection, can't alleviate the impulsive force of mechanical equipment to the bolt in the operation, leads to mechanical equipment secondary impaired easily.

In order to better improve the stability and convenience of the bolt in use, related research and development personnel have made innovative designs on the structure and the use mode of the bolt, for example, the chinese patent with the patent number of 201210207349.3, entitled bolt assembly, solves the problem that the bolt slips or falls off in use, and for example, the chinese patent with the patent number of 201810749652.3, entitled bolt, solves the problem that the bolt is prevented from being stolen in use, but does not mention the problems about the change of the specification of the bolt and the impact force of the bolt in use, so a novel bolt is urgently needed to solve the problems.

Disclosure of Invention

The present invention provides a bolt fastener in order to solve the above-mentioned problems.

In order to achieve the purpose, the invention adopts the following technical scheme: a bolt fastener comprises a threaded sleeve ring, wherein an inner clamping mechanism used for abutting against the inside of a connecting piece is arranged at the lower end of the threaded sleeve ring, a control mechanism used for adjusting the specification of the bolt fastener is arranged on the inner clamping mechanism, a hexagonal block is mounted on the control mechanism, an annular frame is arranged at the lower end of the hexagonal block, and an outer clamping mechanism used for abutting against the outside of the connecting piece is arranged in the annular frame;

the control mechanism comprises a control operation rod arranged on the inner clamping mechanism through a bearing, the upper end of the control operation rod penetrates through the annular frame, the control operation rod penetrates through a hexagonal block through the bearing, the upper end of the hexagonal block is provided with a rotary rudder, the lower end of the control operation rod is provided with a forward thread, the control operation rod drives a first threaded sleeve to adjust through the forward thread in rotation, the forward thread of the control operation rod is sleeved with a first threaded sleeve, the first threaded sleeve is fixedly arranged on the inner clamping mechanism, the outer wall of the control operation rod, which is positioned in the annular frame, is provided with a reverse thread, the control operation rod drives a second threaded sleeve to adjust in a direction opposite to that of the first threaded sleeve through the reverse thread in rotation, the reverse thread is sleeved with a second threaded sleeve, and the second threaded sleeve is provided with an annular control block, a telescopic limiting rod used for limiting the second threaded sleeve to rotate is arranged between the second threaded sleeve and the annular frame;

the inner clamping mechanism comprises supporting spring rods, the supporting spring rods are uniformly arranged on the lower end face of the threaded sleeve ring, an inner clamping support plate is arranged at the lower end of each supporting spring rod, each supporting spring rod is used for supporting and resetting the inner clamping support plate and preventing the inner clamping support plate from rotating in operation, and inner clamping branch chains are uniformly arranged on the inner clamping support plate along the circumferential direction of the inner clamping support plate;

the outer clamping mechanism comprises a moving groove which is uniformly formed in the lower end of the annular frame, a telescopic groove corresponding to the moving groove is uniformly formed in the side wall of the annular frame along the circumferential direction of the side wall of the annular frame, an outer clamping support is arranged in the telescopic groove and can move in the telescopic groove, an outer clamping spring rod is arranged between the outer clamping support and the inner wall of the annular frame, the outer clamping spring rod plays a role in resetting the outer clamping support, the outer clamping support is abutted against the outer wall of the annular control block, a moving frame is arranged at the lower end of the outer clamping support and is connected with the moving groove in a sliding mode.

According to the technical scheme, the inner clamping branch chain comprises an inner clamping sliding groove formed in the inner clamping supporting plate, an inner clamping spring rod is arranged in the inner clamping sliding groove, an inner clamping sliding block is connected to the inner clamping spring rod, the inner clamping sliding block is arranged in the inner clamping sliding groove in a sliding mode, a clamping frame is arranged on the inner clamping sliding block in a supporting mode, the clamping frame is arranged on the inner clamping supporting plate in a sliding mode, an inner clamping driven plate is arranged on the clamping frame in a supporting mode, the inner clamping driven plate abuts against the extrusion driven plate, and the extrusion driven plate is connected with the inner wall of the threaded sleeve ring through the extrusion spring rod.

The preferred technical scheme, control mechanism is still including setting up the control lantern ring at the ring frame lower extreme, evenly be provided with the fixed bolster along its circumference on the outer wall of the control lantern ring, last from last down evenly being provided with fixed jack of fixed bolster, be provided with fixed regulating plate through the spring on the inner wall of fixed bolster, evenly be provided with fixed inserted bar on the fixed regulating plate, fixed inserted bar slides and sets up in fixed jack, be provided with on the screw thread lantern ring with the spacing carriage of fixed bolster complex, the fixed bolster slides and sets up between the spacing carriage inner wall.

Preferred technical scheme, the control operation pole includes a rotary rod, telescopic spring pole and No. two rotary rods, be equipped with reverse screw thread on the outer wall of a rotary rod, be equipped with forward screw thread on No. two rotary rods, a rotary rod with link to each other through telescopic spring pole between No. two rotary rods, just a rotary rod runs through the bearing the hexagonal piece, just a rotary rod upper end is equipped with rotatory rudder, the lower extreme of No. two rotary rods runs through linear bearing the inside callipers backup pad.

According to the preferable technical scheme, the abutting clamp frame is of a U-shaped structure, and the supporting spring rod is located between the inner walls of the abutting clamp frame.

In a preferred technical scheme, the diameter of the annular control block is gradually reduced from top to bottom.

According to the preferable technical scheme, the downward inclination mechanism is arranged from outside to inside on the lower side of the control lantern ring, and the control lantern ring abuts against the side wall of the extrusion driven plate.

According to the preferable technical scheme, fixing holes matched with the fixing inserted rods are uniformly formed in the inner wall of the threaded lantern ring.

According to the preferable technical scheme, a circular groove is formed in the upper end of the hexagonal block, and the rotating rudder is located in the circular groove.

According to the preferable technical scheme, the lower end of the moving frame extends to a position between the outer wall of the control lantern ring and the fixed adjusting plate.

Advantageous effects

1. The invention solves the following problems existing when the connecting bolt of the existing mechanical equipment is damaged, namely, the specification of the bolt is various and different in length, bolts with various specifications are required to be prepared, the maintenance cost of the mechanical equipment is improved, workers are required to select the bolts meeting the specification to install, and the mechanical equipment at the moment has problems due to bolt connection, so that the stability of the common bolt connection in short time can not be ensured, the impact force of the mechanical equipment on the bolt in operation can not be relieved, and the secondary damage of the mechanical equipment is easily caused;

2. when the two connecting pieces are temporarily fixed, the designed bolt is preliminarily connected and fixed through the threaded connection of the threaded sleeve ring and then fixed in a manner of clamping the clamping frame and the outer clamping support in opposite directions, so that the impact force of the threaded sleeve ring in the operation of mechanical equipment is reduced, the service life of the designed bolt can be prolonged, and the working stability of the mechanical equipment in a short time can be ensured;

3. the bolt designed by the invention can be adaptively adjusted according to the length of the specified bolt in operation, so that the temporarily used bolt can stably work under the condition of not influencing the working of mechanical equipment, the applicability is strong, backup is not required to be carried out one by one according to the specification of the bolt, the cost is saved, and the problem that the bolt cannot work due to the damage of the connecting bolt can be timely solved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1 of the present invention;

FIG. 3 is an enlarged view of a portion of the invention at X of FIG. 2;

FIG. 4 is an enlarged view of a portion of the invention at Y of FIG. 2;

FIG. 5 is a schematic structural view of the control mechanism, hexagonal block, ring frame and outer clamping mechanism of the present invention;

FIG. 6 is a schematic view of the structure between the threaded collar, the internal catch mechanism and the control mechanism of the present invention;

fig. 7 is a schematic view of the construction of the threaded collar of the present invention.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 to 7, a bolt fastener includes a threaded collar 1, an inner clamping mechanism 2 is disposed at a lower end of the threaded collar 1, a control mechanism 3 is disposed on the inner clamping mechanism 2, a hexagonal block 4 is mounted on the control mechanism 3, an annular frame 5 is disposed at a lower end of the hexagonal block 4, and an outer clamping mechanism 6 is disposed in the annular frame 5;

during the use, twist into the threaded hole that will carry out interim fixed with the screw thread lantern ring 1, control mechanism 3 is to the length adjustment of bolt to suitable position department, presss from both sides tightly reinforced workpiece through mutually supporting of interior card mechanism 2 and outer card mechanism 6 simultaneously, presss from both sides tightly and locks the mode with screw thread locking cooperation and lock the hookup location temporarily through interior outer clamp.

The control mechanism 3 comprises a control operation rod 31 arranged on the inner clamping mechanism 2 through a bearing, the upper end of the control operation rod 31 penetrates through the annular frame 5, and the control operation rod 31 is provided with a rotary rudder 32 through a bearing passing through the upper end of the hexagonal block 4, the lower end of the control operation rod 31 is provided with a positive thread, a first threaded sleeve 33 is sleeved at the positive thread of the control operation rod 31, the first threaded sleeve 33 is fixedly arranged on the inner clamping mechanism 2, the outer wall of the control operation rod 31 positioned inside the annular frame 5 is provided with reverse threads, a second threaded sleeve 34 is sleeved at the reverse thread, an annular control block 35 is arranged on the second threaded sleeve 34, the diameter of the annular control block 35 decreases progressively from top to bottom, a telescopic limiting rod 36 is arranged between the second threaded sleeve 34 and the annular frame 5;

the damaged bolt is detached from the installation position by using a spanner, the designed bolt is inserted into the threaded hole of the required connecting part, the threaded collar 1 is screwed into the threaded holes of the two connecting parts by the spanner, primary positioning is carried out by the threaded collar 1, and the threaded collar 1 is screwed into a proper position.

Control mechanism 3 is still including setting up the control lantern ring 37 at ring frame 5 lower extreme, evenly be provided with fixed bolster 38 along its circumference on the outer wall of control lantern ring 37, last fixed jack that down evenly is provided with of last of fixed bolster 38, be provided with fixed regulating plate 39 through the spring on the inner wall of fixed bolster 38, evenly be provided with fixed inserted bar 310 on the fixed regulating plate 39, fixed inserted bar 310 slides and sets up in fixed jack, be provided with on the screw thread lantern ring 1 with fixed bolster 38 complex spacing carriage, the fixed bolster slides and sets up between the spacing carriage inner wall.

The lower side of the control collar 37 is a downward tilting mechanism from outside to inside, and the control collar 37 abuts against the side wall of the extrusion driven plate 235.

Through pressing hexagonal piece 4 to the inside direction of screw sleeve ring 1, hexagonal piece 4 receives to press the back and drives control lantern ring 37 and move in step, and control lantern ring 37 extrudes extrusion driven plate 235 in the motion, and extrusion driven plate 235 after receiving the extrusion drives inside callipers mechanism 2 and adjusts to suitable operating condition.

The inner clamping mechanism 2 comprises supporting spring rods 21, the supporting spring rods 21 are uniformly arranged on the lower end face of the threaded sleeve ring 1, an inner clamping support plate 22 is arranged at the lower end of the supporting spring rods 21, and inner clamping branched chains 23 are uniformly arranged on the inner clamping support plate 22 along the circumferential direction of the inner clamping support plate;

interior card branch 23 is including seting up interior card spout in the interior card backup pad 22, be provided with interior card spring lever 231 in the interior card spout, be connected with interior card slider 232 on the interior card spring lever 231, interior card slider 232 slides and sets up in the interior card spout, be provided with on the interior card slider 232 and lean on card frame 233, lean on card frame 233 to slide and set up in the interior card backup pad 22, lean on and be provided with interior card driven plate 234 on card frame 233, interior card driven plate 234 supports and leans on the extrusion driven plate 235, extrusion driven plate 235 with link to each other through extrusion spring lever 236 between the inner wall of the screw sleeve ring 1.

The abutting clamp frame 233 is of a U-shaped structure, and the supporting spring rod 21 is located between the inner walls of the abutting clamp frames 233.

The extrusion driven plate 235 extrudes the inner clamp support plate 22 in motion, and the extruded inner clamp support plate 22 is driven to abut against the clamp frame 233 to extend outwards, so that the distance from the outermost side of the clamp frame 233 to the circle center position of the inner clamp support plate 22 is greater than the inner diameters of the two connecting piece threaded holes.

Control operation pole 31 includes a rotary rod 311, telescopic spring pole 312 and No. two rotary rods 313, be equipped with reverse screw thread on the outer wall of a rotary rod 311, be equipped with forward screw thread on No. two rotary rods 313, a rotary rod 311 with link to each other through telescopic spring pole 312 between No. two rotary rods 313, just a rotary rod 311 runs through the bearing hexagonal piece 4, just a rotary rod 311 upper end is equipped with swivel rudder 32, No. two rotary rods 313's lower extreme runs through linear bearing interior card backup pad 22. The upper end of the hexagonal block 4 is opened with a circular groove, and the rotary rudder 32 is positioned in the circular groove.

When the hexagonal block 4 is pressed, the first rotating rod 311 moves toward the second rotating rod 313, and the telescopic spring rod 312 contracts in the process.

The outer clamping mechanism 6 comprises a moving groove which is uniformly formed in the lower end of the annular frame 5, a telescopic groove corresponding to the moving groove is uniformly formed in the side wall of the annular frame 5 along the circumferential direction of the side wall, an outer clamping support 61 is arranged in the telescopic groove, an outer clamping spring rod 62 is arranged between the outer clamping support 61 and the inner wall of the annular frame 5, the outer clamping support 61 is abutted against the outer wall of the annular control block 35, a moving frame 63 is arranged at the lower end of the outer clamping support 61, and the moving frame 63 is connected with the moving groove in a sliding mode.

The lower end of the moving frame 63 extends between the outer wall of the control collar 37 and the fixed adjusting plate 39.

The inner wall of the threaded lantern ring 1 is uniformly provided with fixing holes matched with the fixing inserted rods 310.

When the working state of the inner clamping mechanism 2 is adjusted, the rotating rudder 32 is controlled to rotate immediately, the rotating rudder 32 drives the control operation rod 31 to rotate in the process, the control operation rod 31 drives the second threaded sleeve 34 to move downwards in the rotating process through a threaded transmission mode, the second threaded sleeve 34 drives the annular control block 35 to move synchronously in the downward movement process, the annular control block 35 extrudes the outer clamping support 61 in the movement process, the outer clamping support 61 slides towards the outside of the annular frame 5 after being extruded, the distance from the outer side of the outer clamping support 61 to the center position of the annular frame 5 is larger than the inner diameter of the threaded holes of the two connecting pieces, the outer clamping support 61 synchronously drives the moving frame 63 to move in the movement process, and the moving frame 63 pushes the fixed inserting rod 310 on the fixed adjusting plate 39 to be clamped into the fixed hole in the movement process, the position of the control lantern ring 37 is locked through the matching of the fixed inserted rod 310 and the fixed hole, so that the length between the control lantern ring 37 and the threaded lantern ring 1 is in a proper state, and the requirement of mechanical equipment in work can be met by the designed overall length of the bolt.

And the operation rod 31 is controlled to be matched with the first threaded sleeve 33 in a threaded transmission mode in the movement to drive the inner clamping support plate 22 to move upwards integrally, and when the inner clamping support plate 22 moves upwards integrally, the two connecting pieces which need to be connected and fixed temporarily are clamped and fixed by abutting against the mutual matching between the clamping frame 233 and the outer clamping support 61.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.