1. A connecting device of a handrail tube of a stair guardrail for an assembled platform is characterized by comprising

A plurality of sections of handrail tubes; and

the connecting fittings are used for assembling two handrail tubes or assembling two connecting fittings.

2. A connecting device of assembled stair railing tubes for platforms according to claim 1, characterized in that the tubes include a first (1), a second (3), a third (5), a fourth (7), a fifth (8) and a sixth (9) tube.

3. A connecting device of assembled stair railing pipe for platform according to claim 1, characterized in that the connecting fittings include corner connecting fittings (15) and butt connecting fittings (6).

4. The connecting device of the assembled stair guardrail handrail tube for the platform as claimed in claim 3, wherein the corner connecting fitting (15) is composed of a B blocking plate (151), an elbow (152), a rivet nut (153) and an A blocking plate (154), the B blocking plate (151) and the A blocking plate (154) are welded with the elbow (152), a welding point is positioned on the inner wall of the elbow (152), and the rivet nut (153) is fastened in a notch hole in the middle of the A blocking plate (154) after hot galvanizing treatment after welding.

5. A connecting device of assembled stair railing pipe for platform according to claim 4, characterized in that the pipe butt joint fitting (6) is composed of a pipe butt joint sleeve (12) and an annular groove (13) arranged at the outer periphery of the pipe butt joint sleeve (12), wherein the joint end face of the pipe butt joint sleeve (12) has bolt holes.

6. The device for connecting the handrail tubes of the assembled stair guardrail for the platform as claimed in claim 5, wherein two ends of one corner connecting fitting (15) are respectively connected with one end of two handrail tube butt-joint connecting fittings (6) to form an alpha-degree corner connecting fitting (2), wherein the A blocking plate (154) of the corner connecting fitting (15) is tightly connected with the connecting end surface of the handrail tube butt-joint sleeve (12) through a bolt (10) and a rivet nut (153), the B blocking plate (151) of the corner connecting fitting (15) is tightly connected with the connecting end surface of the handrail tube butt-joint sleeve (12) through a bolt (10) and a rivet nut (153), and when the inner arc of the elbow (152) of the corner connecting fitting (15) changes, the included angle alpha between the two handrail tube butt-joint connecting fittings (6) also changes.

7. A connecting device of assembled stair railing pipe for platform according to claim 6, characterized in that the A block plate (154) of one corner connecting fitting (15) of the alpha ° corner connecting fittings (2) is fastened with the B block plate (151) of the other corner connecting fitting (15) by a flexible shaft wrench and bolts (10), wherein any one corner connecting fitting (15) can rotate corresponding angle around the bolt (10).

8. A connecting device of assembled stair railing tubes for platforms according to claim 7 characterised in that said alpha ° angle connection fittings (2) comprise 90 ° angle connection fittings (4) and 180 ° angle connection fittings (11).

9. The device for connecting the handrail tube of the assembled stair guardrail for the platform as claimed in claim 8, wherein when the two ends of the handrail tube butt joint fitting (6) are respectively connected with the handrail tube, the two ends of the handrail tube butt joint sleeve (12) are respectively sleeved with the two ends of the handrail tube, the outer periphery of the two ends of the handrail tube is provided with the annular protrusion (14) matched with the annular groove (13), and the annular groove (13) and the annular protrusion (14) are mutually connected in a clamping manner.

10. A connecting device of assembled stair railing pipe for platform according to claim 9, characterized in that one end of the first handrail pipe (1) and one end of the second handrail pipe (3) are connected by an α ° angle connecting fitting (2); the other end of the second handrail tube (3) is connected with one end of the third handrail tube (5) through a 90-degree corner connecting fitting (4); the other end of the third handrail tube (5) is connected with one end of the fourth handrail tube (7) through a handrail tube butt joint connecting fitting (6); one end of the fifth handrail tube (8) and one end of the sixth handrail tube (9) are respectively connected with the two ends of the connecting fitting (11) through a 180-degree corner.

Background

Platform, stair guardrail all connect with the connecting bend in the corner, because the contained angle between the two sections stair guardrail of different stairs is different, the connecting bend needs to have certain commonality, and butt joint between the handrail pipe only realizes the high-speed joint simultaneously, just can save manufacturing cost and assembly cost. The existing circular handrail pipes of the platform and the stair guard railing are connected in a welding mode, and are gradually eliminated due to the problems of attractiveness, durability, corrosion resistance, labor cost, assembly and the like. The novel protective guard connected by bolts such as hot galvanizing, stainless steel and the like is more and more accepted by the market due to the advantages of few welding spots or no welding, quick construction, low requirement on the capability of technical workers, incoming material insertion, one-step mounting forming, adjustable connecting corners and the like.

Disclosure of Invention

Aiming at the problems and the defects in the prior art, the invention provides a connecting device of a handrail tube of a stair guardrail for an assembled platform.

In order to achieve the purpose, the invention provides the following technical scheme:

a connecting device of a stair guardrail handrail tube for an assembled platform comprises

A plurality of sections of handrail tubes; and

the connecting fittings are used for assembling two handrail tubes or assembling two connecting fittings.

Further, the handrail pipe includes first handrail pipe, second handrail pipe, third handrail pipe, fourth handrail pipe, fifth handrail pipe and sixth handrail pipe.

Furthermore, the connecting fittings comprise corner connecting fittings and handrail pipe butt joint connecting fittings.

Furthermore, corner connection fittings comprises B closure plate, elbow, rivet nut, A closure plate, and B closure plate and A closure plate and elbow welding, and the solder joint is located the elbow inner wall, and the rivet nut is fastened to the breach hole in the middle of the A closure plate after carrying out hot-galvanize after the welding.

Furthermore, the handrail tube butt joint connecting fitting is composed of a handrail tube butt joint sleeve and an annular groove arranged on the peripheral side of the handrail tube butt joint sleeve, wherein a connecting end face of the handrail tube butt joint sleeve is provided with a bolt hole.

Furthermore, one the both ends of corner connection accessory respectively with two the one end of handrail pipe butt joint accessory is connected and is constituteed alpha corner connection accessory, and wherein the A closure plate of corner connection accessory passes through bolt, rivet nut fastening connection with handrail pipe butt joint sheathed tube connection terminal surface, and the B closure plate of corner connection accessory passes through bolt, rivet nut fastening connection with handrail pipe butt joint sheathed tube connection terminal surface, when the inner arc angle of the elbow of corner connection accessory changes, two contained angle alpha between the handrail pipe butt joint accessory also changes thereupon.

Furthermore, the A blocking plate on one corner connecting fitting and the B blocking plate on the other corner connecting fitting which form the alpha-degree corner connecting fitting are fastened by a flexible shaft wrench through bolts, and any one corner connecting fitting can rotate by a corresponding angle around the bolts.

Further, the α ° angle connection fitting includes a 90 ° angle connection fitting and a 180 ° angle connection fitting.

Further, when handrail pipe is connected respectively at handrail pipe butt joint accessory both ends, handrail pipe butt joint sleeve pipe both ends cup joint with handrail pipe both ends respectively, handrail pipe both ends periphery side be equipped with annular groove assorted annular arch, annular groove and the mutual joint of annular arch are connected.

Furthermore, one end of the first handrail tube is connected with one end of the second handrail tube through an alpha-degree corner connecting fitting; the other end of the second handrail pipe is connected with one end of the third handrail pipe through a 90-degree corner connecting fitting; the other end of the third handrail tube is connected with one end of the fourth handrail tube through a handrail tube butt joint connecting accessory; one end of the fifth handrail tube and one end of the sixth handrail tube are respectively connected through two ends of a 180-degree corner connecting fitting.

Compared with the prior art, the invention has the beneficial effects that:

the method has the advantages that: the invention has the advantages of no need of welding on site, no need of on-site anti-corrosion treatment, quick construction, incoming material insertion, one-step installation and forming and adjustable corner connecting fittings.

The method has the advantages that: the connecting fittings used by the invention can realize self connection and can be connected with the handrail tube, and the plug plates A and B improve the universality of the connecting fittings.

The method has the advantages that: the elbow adopted by the connecting fitting is not limited to 90 degrees, and can extend out of connecting pieces with various angles, so that different connecting possibilities are provided for different connecting requirements.

The advantages are that: the connecting fitting adopts an assembly process of on-site splicing and extrusion forming, and has the advantages of simple assembly, good consistency and large fault-tolerant elasticity;

the advantages are that: the assembly form of the invention is also suitable for the assembly connection of the guardrail tubes of the platform and the stair guard rails.

Drawings

FIG. 1 is an assembled schematic axonometric view of a handrail tube;

FIG. 2 is a cross-sectional view of a corner connector fitting;

FIG. 3 is a schematic cross-sectional view of a 180 ° corner connector fitting;

FIG. 4 is a schematic sectional view of the connection between the 90-degree corner connecting fitting and the handrail tube;

FIG. 5 is a schematic cross-sectional view of an alpha corner connection fitting;

FIG. 6 is a schematic cross-sectional view of a butt joint fitting of a handrail tube;

FIG. 7 is a front view of the end B block of the corner fitting;

fig. 8 is a front view of the corner connector fitting end a closure.

In the figure: 1. the handrail comprises a first handrail tube, 2. alpha-degree corner connecting fittings, 3. second handrail tube, 4.90-degree corner connecting fittings, 5. third handrail tube, 6. handrail tube butt joint connecting fittings, 7. fourth handrail tube, 8. fifth handrail tube, 9. sixth handrail tube, 10. bolt, 11.180-degree corner connecting fittings, 12. handrail tube butt joint sleeve, 13. annular groove, 14. annular bulge, 15-degree corner connecting fittings, 151.B blocking plate, 152. elbow, 153. rivet nut, 154.A blocking plate.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in figures 1-8, a connecting device for a handrail tube of a stair guardrail for an assembled platform comprises

A plurality of sections handrail pipe and connection fittings, connection fittings are used for assembling two handrail pipes or assemble two connection fittings.

As shown in fig. 1, the handrail tube includes a first handrail tube 1, a second handrail tube 3, a third handrail tube 5, a fourth handrail tube 7, a fifth handrail tube 8 and a sixth handrail tube 9.

Wherein the connecting fittings comprise corner connecting fittings 15 and handrail tube butt joint connecting fittings 6.

As shown in fig. 2, the corner connecting fitting 15 is composed of a B blocking plate 151, an elbow 152, a rivet nut 153, and an a blocking plate 154, the B blocking plate 151 and the a blocking plate 154 are welded to the elbow 152, a welding point is located on the inner wall of the elbow 152, and the rivet nut 153 is fastened in a notch hole in the middle of the a blocking plate 154 after hot galvanizing treatment after welding, as shown in fig. 8.

As shown in fig. 6, the handrail tube butt joint fitting 6 is composed of a handrail tube butt joint sleeve 12 and an annular groove 13 provided on the outer peripheral side of the handrail tube butt joint sleeve 12, wherein the joint end surface of the handrail tube butt joint sleeve 12 has a bolt hole.

As shown in fig. 5, two ends of a corner connection fitting 15 are respectively connected with one end of two handrail tube butt connection fittings 6 to form an α ° corner connection fitting 2, wherein an a block 154 of the corner connection fitting 15 is fastened and connected with a connection end surface of the handrail tube butt sleeve 12 through a bolt 10 and a rivet nut 153, a B block 151 of the corner connection fitting 15 is fastened and connected with a connection end surface of the handrail tube butt sleeve 12 through a bolt 10 and a rivet nut 153, when an inner arc angle of an elbow 152 of the corner connection fitting 15 changes, an included angle α between the two handrail tube butt connection fittings 6 also changes, and the B block 151 is shown in fig. 7.

As shown in fig. 5, when the inner arc angle of the elbow 152 of the corner connecting fitting 15 connected to the 90 ° corner connecting fitting 4 is changed, the included angle α between the two handrail tube butt connecting fittings 6 is also changed.

As shown in fig. 3 and 4, the α ° angle connection fitting 2 includes a 90 ° angle connection fitting 4 and a 180 ° angle connection fitting 11.

As shown in fig. 6, when two ends of the handrail tube butt joint sleeve 12 are respectively sleeved with two ends of the third handrail tube 5 and the fourth handrail tube 7, the outer sides of the third handrail tube 5 and the fourth handrail tube 7 are provided with annular protrusions 14 matched with the annular grooves 13, and the annular grooves 13 and the annular protrusions 14 are connected in a clamping manner.

When the invention is used specifically, as shown in the attached figure 1, one end of a first handrail tube 1 and one end of a second handrail tube 3 are connected through an alpha-degree corner connecting fitting 2; the other end of the second handrail tube 3 is connected with one end of the third handrail tube 5 through a 90-degree corner connecting fitting 4; the other end of the third handrail tube 5 is connected with one end of a fourth handrail tube 7 through a handrail tube butt joint connecting fitting 6; one end of the fifth handrail tube 8 and one end of the sixth handrail tube 9 are respectively connected with two ends of a 180-degree corner connecting fitting 11, and the parts are connected to form a section of guardrail and handrail tube integral structure with a required shape and structure.