1. The utility model provides an engineering survey equipment for town and country planning, includes the support, its characterized in that, the support includes annular pedestal, annular pedestal is equipped with the landing leg, annular pedestal ball socket cooperation is equipped with the turning ball, the turning ball is equipped with the loading board that is used for bearing the measuring equipment body in annular pedestal top, the turning ball is equipped with the gravity piece in the below of annular pedestal, be equipped with micromatic setting between gravity piece and the turning ball.

2. The engineering measurement equipment for urban and rural planning according to claim 1, wherein the fine adjustment device comprises an upper disc fixedly connected with the rotating ball and a lower disc fixedly connected with the gravity block, and torsion elastic strips are circumferentially distributed between the upper disc and the lower disc.

3. The engineering measurement equipment for urban and rural planning according to claim 2, wherein the fine adjustment device is provided with a release mechanism, the release mechanism comprises an ejector rod fixed relative to the upper disc and a sleeve in sliding and sealing fit with the ejector rod, the lower end of the sleeve is fixed relative to the lower disc, a first chamber with a volume changing along with the up-and-down sliding of the ejector rod is arranged between the lower end of the ejector rod and the lower end of the sleeve, the first chamber is filled with the conductive liquid, the ejector rod is provided with a second chamber communicated with the first chamber through a communicating conical hole, a stopping head for blocking the conductive liquid from flowing from the second chamber to the first chamber through cooperation with the communicating conical hole is arranged in the second chamber, the stopping head is provided with a flow guide hole with a diameter smaller than that of the communicating conical hole so that the conductive liquid slowly flows from the second chamber to the first chamber, the second chamber is provided with a fixing plate, the electromagnetic switch comprises a fixed plate, a stopping head, a top push rod, a sleeve and a circuit, wherein a return elastic piece is arranged between the fixed plate and the stopping head, a conductive head is arranged at the lower end of the top push rod, the circuit is conducted when the conductive head is contacted with conductive liquid, the top push rod is made of insulating materials, the sleeve is hinged with a locking sheet which plays a role in positioning when an upper disc and a lower disc are relatively far away, and the sleeve is provided with an electromagnet which is used for adsorbing the locking sheet to enable the upper disc and the lower disc to be relatively close to each other when the circuit is switched on.

4. The engineering measurement equipment for urban and rural planning according to claim 3, wherein the lower part of the stopping head is hemispherical, and the upper part of the stopping head is cylindrical, so as to avoid the deflection of the diversion hole.

5. The engineering survey equipment for urban and rural planning according to claim 4, wherein the rotating ball is connected with the bearing plate through a support rod to prevent the bearing plate from influencing the rotation of the rotating ball.

6. The engineering measurement equipment for urban and rural planning according to claim 5, wherein the locking plate is provided with meshing teeth which are meshed with the upper plate to limit the relative approach of the upper plate and the lower plate.

7. The engineering measurement equipment for urban and rural planning according to claim 6, wherein a sealing ring is arranged between the ejector rod and the sleeve.

8. The engineering measurement device for urban and rural planning according to claim 7, wherein the fixing plate is provided with a through hole for circulating a conductive liquid.

9. The engineering measurement device for urban and rural planning according to claim 8, characterized in that the return elastic member is a helical compression spring.

10. The engineering measurement device for urban and rural planning according to claim 9, characterized in that the gravity block is spherical.

Background

The urban and rural planning is a general term of urban system planning, urban planning, town planning, village planning and village planning; the method is used for the comprehensive deployment, specific arrangement and implementation management of urban and rural social and economic development, land utilization, spatial layout and various constructions in a certain period.

In the urban and rural planning process, engineering measurement needs to be carried out according to local conditions, high-precision engineering measurement equipment is needed, the engineering measurement equipment in the prior art is usually directly placed on a tripod, the tripod does not have a leveling function, leveling errors are increased, and the improvement of measurement precision is not facilitated.

Disclosure of Invention

The invention provides engineering measurement equipment for urban and rural planning, which aims to solve the technical problem of improving the leveling precision.

The technical scheme of the invention is realized as follows: the utility model provides an engineering surveying equipment for town and country planning, includes the support, and the support includes annular pedestal, annular pedestal is equipped with the landing leg, annular pedestal ball socket cooperation is equipped with the rolling ball, the rolling ball is equipped with the loading board that is used for bearing the measuring equipment body in annular pedestal top, the rolling ball is equipped with the gravity piece in the below of annular pedestal, be equipped with micromatic setting between gravity piece and the rolling ball.

Furthermore, the fine adjustment device comprises an upper disc fixedly connected with the rotating ball and a lower disc fixedly connected with the gravity block, and torsion elastic strips are circumferentially distributed between the upper disc and the lower disc.

Further, the fine adjustment device is provided with a release mechanism, the release mechanism comprises a push rod fixed relative to the upper disc and a sleeve matched with the push rod in a sliding and sealing manner, the lower end of the sleeve is fixed relative to the lower disc, a first cavity with the volume changing along with the up-and-down sliding of the push rod is arranged between the lower end of the push rod and the lower end of the sleeve, the first cavity is filled with a conductive liquid, the push rod is provided with a second cavity communicated with the first cavity through a communicating conical hole, a stop head used for being matched with the communicating conical hole to stop the conductive liquid from flowing from the second cavity to the first cavity is arranged in the second cavity, the stop head is provided with a flow guide hole with the diameter smaller than that of the communicating conical hole to enable the conductive liquid to slowly flow from the second cavity to the first cavity, the second cavity is provided with a fixing plate, a return elastic piece is arranged between the fixing plate and the stop head, and the lower end of the push rod is provided with the conductive head, the circuit switches on when conducting head and conducting liquid contact, the ejector pin is insulating material, the sleeve articulates there is the locking plate that is used for playing the positioning action when hanging wall, lower wall keep away from relatively, the sleeve is equipped with and is used for adsorbing the electro-magnet that the locking plate so that hanging wall, lower wall begin to be close to relatively when the circuit switches on.

Furthermore, the lower part of the stopping head is hemispherical, and the upper part of the stopping head is cylindrical, so that the deflection of the diversion hole is avoided.

Furthermore, the rotating ball is connected with the bearing plate through a support rod so as to prevent the bearing plate from influencing the rotation of the rotating ball.

Furthermore, the locking plate is provided with meshing teeth which are meshed with the upper disc to limit the relative approach of the upper disc and the lower disc.

Furthermore, a sealing ring is arranged between the ejector rod and the sleeve.

Furthermore, the fixing plate is provided with a through hole for circulating the conductive liquid.

Further, the return elastic member is a helical compression spring.

Further, the gravity block is spherical.

By adopting the technical scheme, the invention has the beneficial effects that: the support of the engineering measurement equipment for urban and rural planning pulls the lower disc to be far away from the upper disc under the action of centrifugal force, the torsion elastic strip is stretched and twisted at the same time, and the rotating gravity block is beneficial to keeping the stability of the gravity block so as to improve the leveling precision of the bearing plate; and the impact of the gravity block is effectively buffered by stretching the torsion elastic strip, the self vibration of the gravity block is reduced, and the self stability of the gravity block is improved so as to improve the leveling precision of the bearing plate.

Further, the conductive liquid enters the first chamber from the flow guide hole, after the gravity block stops swinging, the first chamber is filled with the conductive liquid, the conductive head is in contact with the conductive liquid to conduct a circuit, at the moment, the electromagnet is electrified to generate suction force on the locking sheet to enable the locking sheet to be in contact with and lock the upper disc, at the moment, the upper disc and the lower disc are relatively close to each other under the action of the torsion elastic strip, the gravity block can cross a balance point with the elasticity of the torsion elastic strip equal to the gravity of the gravity block under the inertia effect to continuously rise, at the moment, the torsion elastic strip is compressed and twisted, at the moment, the contact force between the rotating ball and the annular seat body is reduced, the friction force between the rotating ball and the annular seat body is reduced, the gravity block can further adjust the vertical degree of the push rod, further adjust the levelness of the bearing plate, at the moment, the twisting of the torsion elastic strip drives the rotating ball to rotate relative to the annular seat body, and the rotating ball is changed from static friction to dynamic friction between the annular seat body, further reduced the frictional force between rolling ball and the annular pedestal, thereby prevented to glue between rolling ball and the annular pedestal and improve the adjustment accuracy.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

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

FIG. 3 is an enlarged view at III of FIG. 2;

FIG. 4 is an enlarged view taken at II in FIG. 2;

fig. 5 is an enlarged view of fig. 1 at I.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An embodiment 1 of an engineering measurement device for urban and rural planning, as shown in fig. 1-5, comprises a support, the support comprises an annular base 1, the annular base is provided with support legs 2, a ball socket of the annular base is matched with a rotating ball 3, the rotating ball is provided with a bearing plate 4 for bearing a measurement device body above the annular base, the rotating ball is provided with a gravity block 5 below the annular base, and a fine adjustment device is arranged between the gravity block and the rotating ball.

The fine adjustment device comprises an upper disc 6 fixedly connected with the rotating ball and a lower disc 7 fixedly connected with the gravity block, and torsion elastic strips 8 are circumferentially distributed between the upper disc and the lower disc.

The fine adjustment device is provided with a release mechanism, the release mechanism comprises a push rod 9 fixed relative to the upper disc and a sleeve 10 matched with the push rod in a sliding and sealing way, the lower end of the sleeve is fixed relative to the lower disc, a first cavity 11 with the volume changing along with the up-and-down sliding of the push rod is arranged between the lower end of the push rod and the lower end of the sleeve, the first cavity is filled with conductive liquid, the push rod is provided with a second cavity 13 communicated with the first cavity through a communicating taper hole 12, a stop head 14 used for being matched with the communicating taper hole to stop the conductive liquid from flowing from the second cavity to the first cavity is arranged in the second cavity, the stop head is provided with a flow guide hole 15 with the diameter smaller than the communicating taper hole to slowly enable the conductive liquid to flow from the second cavity to the first cavity, the second cavity is provided with a fixing plate 16, a return elastic piece 17 is arranged between the fixing plate and the stop head, the lower end of the push rod is provided with a conductive head 18, when the conductive head is contacted with the conductive liquid, a circuit is conducted, the ejector rod is made of insulating materials, the sleeve is hinged with a locking piece 19 which is used for positioning when the upper disc and the lower disc are relatively far away, and the sleeve is provided with an electromagnet 20 which is used for adsorbing the locking piece when a circuit is switched on so that the upper disc and the lower disc start to be relatively close.

An embodiment 2 of an engineering measurement device for urban and rural planning, as shown in fig. 1-5, comprises a support, the support comprises an annular base 1, the annular base is provided with support legs 2, a ball socket of the annular base is matched with a rotating ball 3, the rotating ball is provided with a bearing plate 4 for bearing a measurement device body above the annular base, the rotating ball is provided with a gravity block 5 below the annular base, and a fine adjustment device is arranged between the gravity block and the rotating ball.

The fine adjustment device comprises an upper disc 6 fixedly connected with the rotating ball and a lower disc 7 fixedly connected with the gravity block, and torsion elastic strips 8 are circumferentially distributed between the upper disc and the lower disc.

The fine adjustment device is provided with a release mechanism, the release mechanism comprises a push rod 9 fixed relative to the upper disc and a sleeve 10 matched with the push rod in a sliding and sealing way, the lower end of the sleeve is fixed relative to the lower disc, a first cavity 11 with the volume changing along with the up-and-down sliding of the push rod is arranged between the lower end of the push rod and the lower end of the sleeve, the first cavity is filled with conductive liquid, the push rod is provided with a second cavity 13 communicated with the first cavity through a communicating taper hole 12, a stop head 14 used for being matched with the communicating taper hole to stop the conductive liquid from flowing from the second cavity to the first cavity is arranged in the second cavity, the stop head is provided with a flow guide hole 15 with the diameter smaller than the communicating taper hole to slowly enable the conductive liquid to flow from the second cavity to the first cavity, the second cavity is provided with a fixing plate 16, a return elastic piece 17 is arranged between the fixing plate and the stop head, the lower end of the push rod is provided with a conductive head 18, when the conductive head is contacted with the conductive liquid, a circuit is conducted, the ejector rod is made of insulating materials, the sleeve is hinged with a locking piece 19 which is used for positioning when the upper disc and the lower disc are relatively far away, the sleeve is provided with an electromagnet 20 which is used for adsorbing the locking piece when a circuit is switched on so that the upper disc and the lower disc start to be relatively close, the lower part of the stopping head is hemispherical, the upper part of the stopping head is cylindrical so as to avoid deviation of a flow guide hole, the rotating ball is connected with the bearing plate through a support rod 21 so as to avoid the bearing plate from influencing the rotation of the rotating ball, the locking piece is provided with engaging teeth 22 which are engaged with the upper disc so as to limit the upper disc and the lower disc to be relatively close, a sealing ring 23 is arranged between the ejector rod and the sleeve, the fixing plate is provided with a through hole 24 for circulating conducting liquid, the return elastic piece is a spiral compression spring, and the gravity block is spherical.

When the support is used, the support is placed on the ground, then the gravity block 5 is pushed to enable the gravity block to swing, at the moment, the gravity block 5 pulls 7 the lower disc to be far away from the upper disc 6 under the action of centrifugal force, at the moment, the torsion elastic strip 8 is stretched and twisted at the same time, the stretching of the torsion elastic strip 8 enables the volume of the first chamber to be increased, so that the conductive head is not in contact with the conductive liquid at the moment, the torsion of the torsion elastic strip 8 drives the gravity block 5 to rotate, and the rotating gravity block 5 is beneficial to keeping the self stability so as to improve the leveling precision of the bearing plate; the conductive liquid enters the first chamber from the flow guide hole, when the gravity block stops swinging, the first chamber is filled with the conductive liquid, the conductive head is in contact with the conductive liquid to conduct a circuit, the electromagnet is electrified to generate suction force on the locking sheet to enable the locking sheet to be in contact with and lock the upper disc, the upper disc and the lower disc are relatively close to each other under the action of the torsion elastic strip, the gravity block can cross a balance point with the elasticity of the torsion elastic strip equal to the gravity of the gravity block under the inertia effect to continuously rise, the torsion elastic strip is compressed and twisted at the moment, the contact force between the rotating ball and the annular seat body is reduced, the friction force between the rotating ball and the annular seat body is reduced, the gravity block can further adjust the vertical degree of the push rod, the levelness of the bearing plate is further adjusted, the torsion elastic strip drives the rotating ball to rotate relative to the annular seat body at the moment, and the static friction between the rotating ball and the annular seat body is converted into dynamic friction, further reduced the frictional force between rolling ball and the annular pedestal, thereby prevented to glue between rolling ball and the annular pedestal and improve the adjustment accuracy.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.