Assembling structure for engineering surveying level gauge

Abstract

The utility model discloses an assembling structure for an engineering surveying level gauge. The assembling structure comprises a level gauge main body, a bearing shell, a buckling device, a bracket assembly, a limiting assembly, a friction assembly and a driving device, the support assembly is fixed to the level gauge body, the bearing shell and the buckling device are sequentially connected, and the support assembly is located below the level gauge body and fixedly connected with the bearing shell through the buckling device; the limiting assembly and the friction assembly are both installed in the bearing shell, the limiting assembly can slide up and down in the bearing shell and limit the buckling device after descending, and the bearing shell limits the limiting assembly to ensure that the limiting assembly does not rotate relative to the bearing shell. The friction assembly can be driven by the limiting assembly to slide up and down in the shell so as to be in friction connection or discontact with the support assembly, and the driving device is connected with the limiting assembly and drives the limiting assembly to slide up and down. The assembling structure for the engineering surveying level gauge is reasonable in structural design, convenient to operate and good in reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering surveying level technical field relates to a kind of for the assembly structure of engineering surveying level. BACKGROUND

[0002] Engineering surveying usually refers to the various surveying theories and methods and techniques used in the surveying design, construction and management stages of engineering construction, and the service field of traditional engineering surveying technology includes building, water conservancy, transportation and mining departments, and its basic content has two parts of mapping and setting out.

[0003] The level is an instrument for establishing horizontal line of sight to measure the height difference between two points on the ground. The principle is to measure the height difference between ground points according to the principle of level measurement. The main components include telescope, tube level (or compensator), vertical shaft, base and foot screw. According to the accuracy, it is divided into precision level and ordinary level. The level is a commonly used instrument in engineering surveying, which mainly uses the principle of distance measurement to measure the height difference between two points.

[0004] The existing tripod leg and level are usually connected by angle screw, and the tripod screw is distinguished by metric and imperial system, which may cause the tripod leg and level to be not matched, affecting the installation and fixation of the level.

[0005] Therefore, it is of great practical significance to develop a reliable and convenient connection device suitable for level and tripod leg. INVENTION CONTENT

[0006] Since the existing technology has the above defects, the utility model provides a reliable and convenient connection device suitable for level and tripod leg, which overcomes the defects that the existing tripod leg and level are usually connected by angle screw, and the tripod screw is distinguished by metric and imperial system, which may cause the tripod leg and level to be not matched, affecting the installation and fixation of the level.

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0008] An assembly structure for engineering surveying level, comprising a level main body, a receiving shell, a buckling device, a support assembly, a limiting assembly, a friction assembly and a driving device;

[0009] The receiving shell is fixed at the bottom of the level main body, the buckling device is fixed at the bottom of the receiving shell, and the support assembly is located below the level main body and is fixedly connected with the receiving shell through the buckling device;

[0010] The limiting assembly and the friction assembly are installed in the receiving shell, the limiting assembly can slide up and down in the receiving shell and limit the buckling device after descending, the receiving shell limits the limiting assembly to ensure that the limiting assembly does not rotate relative to the receiving shell, the friction assembly can slide up and down in the receiving shell under the driving of the limiting assembly to be in friction connection or out of contact with the support assembly, and the driving device is rotatably installed on the outer side of the receiving shell, the driving device is connected with the limiting assembly and drives the limiting assembly to slide up and down.

[0011] The utility model discloses an assembly structure for engineering surveying level, and the structure design is reasonable, and the limiting assembly can slide down through the driving device, the limiting assembly cooperates with the buckling device, and the buckling device is locked, and the friction assembly slides down and is in friction connection with the support assembly simultaneously to ensure the locking state, the limiting assembly slides up, the friction assembly is out of contact with the support assembly and the limiting assembly is out of contact with the buckling device, and the buckling device is unlocked at this time, and the receiving shell can rotate relative to the support assembly, convenient operation and good reliability have good application prospect.

[0012] As a preferred technical scheme:

[0013] The utility model discloses an assembly structure for engineering surveying level as above, the inside of receiving shell is provided with polygonal slot, limiting assembly and friction assembly are installed in polygonal slot, and the outer side of receiving shell is provided with limiting recess.

[0014] The utility model discloses an assembly structure for engineering surveying level as above, and the support assembly includes base plate and tripod support leg.

[0015] The base plate is arranged below the receiving shell, and a through hole I is formed in the center of the base plate.

[0016] The plurality of tripod support legs are arranged in a ring array and fixed to the bottom of the base plate.

[0017] The utility model discloses an assembly structure for engineering surveying level as above, and the buckling device includes a top plate, a hinged frame, an extension plate and a limiting head.

[0018] The top plate is fixed to the bottom opening of the receiving shell, a plurality of guide through holes are arranged in a ring array on the top plate, a through hole II is formed in the center of the top plate, a plurality of hinged frames are arranged in a ring array below the top plate, the extension plate is hinged to the hinged frame and passes through the base plate through the through hole I of the base plate, and the limiting head is fixed to the side of the extension plate away from the hinged frame and contacts the lower surface of the base plate.

[0019] The utility model discloses an assembly structure for engineering surveying level as above, and the limiting assembly includes a coaxial threaded rod, a polygonal plate and a limiting disc.

[0020] The polygonal plate and the limiting circular plate are connected by a threaded rod, one end of the threaded rod is connected with the limiting circular plate, the other end passes through the polygonal plate and is connected with the driving device, the polygonal plate is located in the polygonal groove, the polygonal plate matches the polygonal groove, the orthogonal projection of the limiting circular plate is completely covered by the orthogonal projection of the through hole II, and the orthogonal projection of the polygonal plate completely covers the orthogonal projection of the through hole II. The driving device drives the threaded rod to rotate, the threaded rod moves downward, drives the limiting circular plate to move downward, and the limiting circular plate abuts against the extension plate, so that the rotation of the extension plate is limited, and the buckling device is in a locked state.

[0021] The friction assembly comprises a friction plate, a guide rod and a bearing plate.

[0022] The friction plate and the bearing plate are annular structures, the friction plate is connected with the bearing plate through the plurality of guide rods fixed on the friction plate in an annular array, the bearing plate is located between the polygonal plate and the top plate, the friction plate is located between the top plate and the base plate, and the guide rod passes through the guide hole.

[0023] The driving device comprises a threaded sleeve, a friction wheel and a rotating key.

[0024] The threaded sleeve is sleeved on the threaded rod and is threadedly connected with the threaded rod, and the threaded sleeve is rotatably installed in the limiting groove.

[0025] The friction wheel is rotatably installed in the limiting groove and is engaged with the threaded sleeve.

[0026] The rotating key is rotatably installed in the limiting groove, the rotating key is an annular structure, the friction wheel and the threaded sleeve are arranged in the rotating key, the rotating key is engaged with the friction wheel, and the threaded sleeve is driven to rotate through the friction wheel.

[0027] The friction wheel comprises a plurality of friction wheels.

[0028] The plurality of friction wheels are uniformly arranged around the circumference of the threaded rod, and all the friction wheels are simultaneously engaged with the rotating key and the threaded sleeve.

[0029] The above technical solution is only one feasible technical solution of the utility model, the protection scope of the utility model is not limited to this, and a person skilled in the art can reasonably adjust the specific design according to actual needs.

[0030] The utility model has the advantages or beneficial effects as follows:

[0031] (1) the utility model discloses a mounting structure for engineering surveying level, through the setting of limiting assembly can limit the rotation of buckling device, make buckling device install together with the support component of receiving shell (and the level main body and receiving shell are fixed, namely complete the installation of level main body), and before extruding friction assembly, can make receiving shell namely level main body rotate relative to support component, adjust the angle of support component, and after extruding friction assembly, position level main body and support component, make receiving shell namely level main body and support component can not rotate relative to each other;

[0032] (2) the utility model discloses a mounting structure for engineering surveying level, through the descending extrusion of friction assembly, increase the friction force of friction assembly and buckling device and support component, play the effect of limiting level main body rotation, and when the friction assembly rises, reduce friction, make level main body can normally adjust;

[0033] (3) the utility model discloses a mounting structure for engineering surveying level, and the structure design is reasonable, and operation is convenient and reliable, and the application prospect is good. BRIEF DESCRIPTION OF DRAWINGS

[0034] The utility model and its features, shape and advantages will become more obvious through reading the detailed description of non-restrictive embodiments with reference to the following drawings. Same marks indicate same parts in all drawings. The drawings are not drawn according to scale, and the emphasis is on showing the main idea of the utility model.

[0035] Figure 1 It is the structural schematic diagram of the mounting structure for engineering surveying level of the utility model;

[0036] Figure 2 It is the internal structure schematic diagram of receiving shell;

[0037] Figure 3 It is Figure 2 the schematic diagram of explosion;

[0038] Figure 4 It is the structural schematic diagram of driving device;

[0039] In the figure: 100, the main body of the level; 200, the receiving shell; 210, the polygonal cavity; 220, the limiting groove; 300, the buckling device; 310, the top plate; 320, the hinged frame; 330, the extension plate; 340, the limiting head; 350, the guide through hole; 400, the support assembly; 410, the base plate; 420, the tripod leg; 500, the limiting assembly; 510, the threaded rod; 520, the polygonal plate; 530, the limiting round plate; 600, the friction assembly; 610, the friction plate; 620, the guide rod; 630, the force bearing plate; 700, the driving device; 710, the threaded sleeve; 720, the friction wheel; 730, the rotation key. DETAILED DESCRIPTION

[0040] The structure in the utility model will be further explained in combination with the drawings and specific embodiments, but not as the limitation of the utility model.

[0041] Embodiment 1

[0042] An assembly structure for engineering surveying level, as shown in Figures 1-4 The assembly structure comprises a main body of level 100, a receiving shell 200, a buckling device 300, a support assembly 400, a limiting assembly 500, a friction assembly 600 and a driving device 700.

[0043] The receiving shell 200 is fixed at the bottom of the main body of level 100, the buckling device 300 is fixed at the bottom of the receiving shell 200, and the support assembly 400 is located below the main body of level 100 and is fixedly connected with the receiving shell 200 through the buckling device 300.

[0044] The outer side of the receiving shell 200 is provided with a limiting groove 220, and the inner side of the receiving shell is provided with a polygonal cavity 210, and the limiting assembly 500 and the friction assembly 600 are installed in the polygonal cavity 210.

[0045] The support assembly 400 comprises a base plate 410 and a tripod leg 420, the base plate 410 is arranged below the receiving shell 200, and the center of the base plate 410 is provided with a through hole I, and the three tripod legs 420 are fixedly arranged at the bottom of the base plate 410 in a ring-shaped array.

[0046] The buckle device 300 comprises a top plate 310, a hinged frame 320, an extension plate 330 and a limiting head 340. The top plate 310 is fixed at the bottom opening of the receiving shell 200. A plurality of guide through holes 350 are arranged in a ring array on the top plate 310, and a through hole II is arranged at the center of the top plate 310. A plurality of hinged frames 320 are fixed in a ring array below the top plate 310. The extension plate 330 is hinged with the hinged frame 320 and passes through the base plate 410 through the through hole I of the base plate 410. The limiting head 340 is fixed on the side of the extension plate 330 away from the hinged frame 320 and is in contact with the lower surface of the base plate 410.

[0047] The limiting assembly 500 (which can slide up and down in the polygonal groove 210 and limit the buckle device 300 after descending) comprises a coaxial threaded rod 510, a polygonal plate 520 and a limiting circular plate 530. The polygonal plate 520 and the limiting circular plate 530 are connected by the threaded rod 510. One end of the threaded rod 510 is connected with the limiting circular plate 530, and the other end passes out of the polygonal plate 520 and is connected with the driving device 700. The polygonal plate 520 is located in the polygonal groove 210 and matches the polygonal groove 210. The orthogonal projection of the limiting circular plate 530 is completely covered by the orthogonal projection of the through hole II, and the orthogonal projection of the polygonal plate 520 completely covers the orthogonal projection of the through hole II.

[0048] The friction assembly 600 (which can slide up and down in the polygonal groove 210 under the driving of the limiting assembly 500 to be in friction connection or out of contact with the support assembly 400) comprises a friction plate 610, a guide rod 620 and a bearing plate 630. The friction plate 610 and the bearing plate 630 are both circular ring structures. The friction plate 610 is connected with the bearing plate 630 through a plurality of guide rods 620 fixed in a ring array on the friction plate 610. The bearing plate 630 is located between the polygonal plate 520 and the top plate 310. The friction plate 610 is located between the top plate 310 and the base plate 410. The guide rod 620 passes through the guide through hole 350.

[0049] The driving device 700 comprises a threaded sleeve 710, three friction wheels 720 and a rotating key 730. The threaded sleeve 710 is sleeved on the threaded rod 510 and is threadedly connected with the threaded rod 510. The threaded sleeve 510 is rotatably installed in the limiting groove 220. The three friction wheels 720 are rotatably installed in the limiting groove 220 and are uniformly arranged around the circumference of the threaded rod 510. All the friction wheels 720 are in engagement with the threaded sleeve 710. The rotating key 730 is rotatably installed in the limiting groove 220. The rotating key 730 is an annular structure and the friction wheels 720 and the threaded sleeve 710 are arranged in the rotating key 730. The rotating key 730 is in engagement with all the friction wheels 720. The limiting assembly 500 is driven to slide up and down by the driving device 700.

[0050] When installing, the receiving shell 200 is placed above the support assembly 400, the buckling device 300 is passed through the support assembly 400, then the driving device 700 is rotated, the driving device 700 first drives the limiting assembly 500 to descend and is inserted into the buckling device 300 to limit the buckling device 300, the leveling instrument main body 100 and the support assembly 400 are completed installation, then the angle of the leveling instrument main body 100 is adjusted, when the angle of the leveling instrument main body 100 is adjusted, the driving device 700 is rotated again, the driving device 700 drives the limiting assembly 500 to continue to descend and extrude the friction assembly 600 to descend synchronously, the friction assembly 600 extrudes the support assembly 400, the support assembly 400 descends relative to the buckling device 300, the friction force between the support assembly 400 and the friction assembly 600 and the buckling device 300 is increased, and the fixing of the leveling instrument main body 100 and the support assembly 400 is completed.

[0051] When disassembling, the driving device 700 is reversely rotated, the driving device 700 drives the limiting assembly 500 to ascend, the extrusion of the friction assembly 600 and the limitation of the buckling device 300 are released, then the leveling instrument main body 100 is removed.

[0052] The limiting assembly 500 is arranged to limit the rotation of the buckling device 300, the buckling device 300 installs the leveling instrument main body 100 and the support assembly 400 together, before the friction assembly 600 is extruded, the leveling instrument main body 100 can rotate relative to the support assembly 400, the angle of the support assembly 400 is adjusted, and after the friction assembly 600 is extruded, the leveling instrument main body 100 and the support assembly 400 are positioned, the leveling instrument main body 100 and the support assembly 400 cannot rotate relative to each other.

[0053] The friction assembly 600 is extruded to increase the friction force between the friction assembly 600 and the buckling device 300 and the support assembly 400, the rotation of the leveling instrument main body 100 is limited, and when the friction assembly 600 ascends, the friction is reduced, so that the leveling instrument main body 100 can be normally adjusted.

[0054] The leveling instrument main body 100 is provided with a horizontal bubble, the horizontal bubble is arranged to facilitate the adjustment of the levelness of the leveling instrument main body 100.

[0055] The polygonal slot cavity 210 is arranged to be matched with the polygonal plate 520 and limit the rotation of the polygonal plate 520, so that the limiting assembly 500 ascends and descends under the driving of the driving device 700.

[0056] The limiting recess 220 is arranged to ensure the normal installation of the driving device 700, and the receiving shell 200 is divided into two parts by the center line of the limiting recess 220.

[0057] In use, the tripod legs 420 are opened and placed in the designated position, and then the level main body 100 is installed on the top of the base plate 410 for use. The tripod legs 420 can be adjusted in length by extension.

[0058] When installing the buckle device 300, the extension plate 330 is retracted and passed through the base plate 410, and the limiting head 340 is in contact with the lower surface of the base plate 410. The receiving shell 200 is installed on the top of the base plate 410. The top plate 310 is connected and fixed with the receiving shell 200, and the receiving shell 200 drives the installation of the top plate 310. The normal installation of the extension plate 330 is ensured by the setting of the hinged frame 320, which can also drive the limiting head 340 to extend below the base plate 410. The limiting head 340 is in contact with the lower surface of the base plate 410, and the up and down movement of the receiving shell 200 is limited under the cooperation of the top plate 310. The setting of the guide through hole 350 enables the friction assembly 600 to pass normally and plays a guiding role in the sliding of the friction assembly 600, and can limit the rotation of the buckle device 300 when the friction is increased.

[0059] In use, the rotation driving device 700 is rotated to drive the threaded rod 510 to descend under the action of the thread, and the threaded rod 510 will drive the polygonal plate 520 and the limiting circular plate 530 to descend when it descends. The limiting circular plate 530 will first be inserted into the center of the plurality of extension plates 330 and limit the rotation of the extension plates 330. Then, as the threaded rod 510 descends, the polygonal plate 520 will come into contact with the friction assembly 600, and the friction assembly 600 will be pressed downward to increase the friction between the friction assembly 600 and the base plate 410.

[0060] When disassembling, the driving device 700 is rotated in the opposite direction to drive the threaded rod 510 to ascend and drive the polygonal plate 520 and the limiting circular plate 530 to ascend to release the pressure on the friction assembly 600 and the limitation on the extension plates 330.

[0061] The threaded rod 510 is set to cooperate with the driving device 700 and drive the polygonal plate 520 and the limiting circular plate 530 to ascend and descend under the action of the thread. The polygonal plate 520 is set to cooperate with the polygonal groove 210 and limit the rotation of the threaded rod 510, so that the threaded rod 510 can ascend and descend normally and press the friction assembly 600 to increase the friction when the polygonal plate 520 descends. The limiting circular plate 530 is set to come into contact with the extension plate 330 after descending and limit the rotation of the extension plate 330.

[0062] The force bearing plate 630 drives the friction plate 610 to descend under the extrusion of the polygonal plate 520, so that the friction plate 610 exerts extrusion force on the base plate 410, and the friction between the base plate 410 and the friction plate 610 is reduced; the lower surface of the friction plate 610 and the upper surface of the base plate 410 can be provided with friction marks to increase the friction; the guide rod 620 is provided to cooperate with the guide through hole 350, so as to guide the lifting of the friction plate 610 and the force bearing plate 630, avoid the deviation of the force bearing plate 630 during lifting, and limit the sliding of the friction plate 610, the limiting component 500 and the receiving shell 200.

[0063] During driving, the rotating key 730 is rotated, and the rotating key 730 drives the threaded sleeve 710 to rotate through the friction wheel 720 under the action of friction, so that the threaded sleeve 710 drives the threaded rod 510 to ascend and descend; the friction wheel 720 is provided to play a transmission role, so that the rotating key 730 can drive the threaded sleeve 710 to rotate synchronously when rotating.

[0064] It is verified that the assembly structure for the engineering surveying level gauge can limit the rotation of the buckling device through the limiting component, so that the buckling device installs the receiving shell and the support assembly together (and the level gauge body and the receiving shell are fixed, that is, the installation of the level gauge body is completed), and before the extrusion of the friction assembly, the receiving shell, that is, the level gauge body, can be rotated relative to the support assembly, the angle of the support assembly is adjusted, and after the extrusion of the friction assembly, the level gauge body and the support assembly are positioned, so that the receiving shell, that is, the level gauge body, and the support assembly cannot rotate relative to each other; the friction assembly and the buckling device and the support assembly are extruded and increased in friction force through the descent of the friction assembly, so as to limit the rotation of the level gauge body, and the friction is reduced when the friction assembly ascends, so that the level gauge body can be normally adjusted; the structure design is reasonable, the operation is convenient and reliable, and the application prospect is good.

[0065] Those skilled in the art should understand that those skilled in the art can realize the variation examples in combination with the prior art and the above-mentioned embodiments, which are not described here. Such variation examples do not affect the essential content of the utility model, which is not described here.

[0066] The preferred embodiments of the present application are described above. It should be understood that the present application is not limited to the specific embodiments described above, wherein the devices and structures not described in detail should be understood as being implemented in the ordinary way in the art; any person skilled in the art, without departing from the scope of the technical scheme of the present application, can make many possible changes and modifications to the technical scheme of the present application by using the disclosed methods and technical contents, or modify equivalent embodiments, which does not affect the essential content of the present application. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the content of the technical scheme of the present application, still belongs to the scope of protection of the technical scheme of the present application.

Claims

1. An assembly structure for an engineering surveying level, characterized by: The leveling instrument comprises a leveling instrument body, a receiving shell, a buckling device, a support assembly, a limiting assembly, a friction assembly and a driving device. The receiving shell is fixed at the bottom of the leveling instrument body, the buckling device is fixed at the bottom of the receiving shell, and the support assembly is located below the leveling instrument body and is fixedly connected with the receiving shell through the buckling device. The limiting assembly and the friction assembly are both installed in the receiving shell, the limiting assembly can slide up and down in the receiving shell and limit the buckling device after descending, the receiving shell limits the limiting assembly to ensure that the limiting assembly does not rotate relative to the receiving shell, the friction assembly can slide up and down in the receiving shell under the driving of the limiting assembly to be in friction connection or disengagement with the support assembly, and the driving device is rotatably installed on the outer side of the receiving shell, is connected with the limiting assembly and drives the limiting assembly to slide up and down.

2. An assembly structure for an engineering surveying level according to claim 1, characterized in that, The inside of the receiving shell is provided with a polygonal groove, the limiting assembly and the friction assembly are both installed in the polygonal groove, and the outer side of the receiving shell is provided with a limiting groove.

3. An assembly for a surveying level according to claim 2, wherein, The support assembly comprises a base plate and tripod legs. The base plate is arranged below the receiving shell, and a through hole I is formed at the center of the base plate. The tripod legs are arranged in an annular array and are fixed at the bottom of the base plate.

4. An assembly structure for an engineering surveying level according to claim 3, characterized in that, The buckling device comprises a top plate, a hinge frame, an extension plate and a limiting head. The top plate is fixed at the opening of the bottom of the receiving shell, a plurality of guide through holes are arranged in an annular array on the top plate, a through hole II is formed at the center of the top plate, a plurality of hinge frames are fixed in an annular array below the top plate, the extension plate is hinged with the hinge frames and passes through the base plate through the through hole I of the base plate, and the limiting head is fixed at the side of the extension plate away from the hinge frames and is in contact with the lower surface of the base plate.

5. An assembly for a surveying level according to claim 4, wherein, The limiting assembly comprises a coaxial threaded rod, a polygonal plate and a limiting disc. The polygonal plate and the limiting disc are connected through the threaded rod, one end of the threaded rod is connected with the limiting disc, the other end passes through the polygonal plate and is connected with the driving device, the polygonal plate is located in the polygonal groove, the polygonal plate matches the polygonal groove, the limiting disc is completely covered by the projection of the through hole II, and the projection of the polygonal plate completely covers the projection of the through hole II.

6. An assembly for a surveying level according to claim 5, wherein, The friction assembly comprises a friction plate, a guide rod and a bearing plate. The friction plate and the bearing plate are both annular structures, the friction plate is connected with the bearing plate through a plurality of guide rods arranged in an annular array on the friction plate, the bearing plate is located between the polygonal plate and the top plate, the friction plate is located between the top plate and the base plate, and the guide rods pass through the guide through holes.

7. An assembly structure for an engineering surveying level according to claim 1, characterized in that, The driving device comprises a threaded sleeve, a friction wheel and a rotating key. The threaded sleeve is sleeved on the threaded rod and is threadedly connected with the threaded rod, and the threaded sleeve is rotatably installed in the limiting groove. The friction wheel is rotatably installed in the limiting groove and is engaged with the threaded sleeve. The rotating key is rotatably installed in the limiting groove, the rotating key is an annular structure, the friction wheel and the threaded sleeve are arranged in the rotating key, and the rotating key is engaged with the friction wheel.

8. An assembly for a surveying level according to claim 7, wherein, There are a plurality of friction wheels. A plurality of friction wheels are evenly arranged around the circumference of the threaded rod and all of the friction wheels are simultaneously engaged with the rotating key and the threaded sleeve.

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