Level gauge for engineering surveying and mapping

Abstract

The utility model relates to an engineering surveying and mapping instrument, and discloses a level gauge for engineering surveying and mapping, which comprises an instrument main body and a support frame, the bottom end of the instrument main body is butted with the top end of the support frame through a crimping mechanism, the crimping mechanism comprises a top seat and a plurality of pin columns, the plurality of pin columns are fixedly connected at the top end of the support frame, and the side wall of each pin column is provided with an annular caulking groove. A plurality of pin holes are formed in the bottom of the top seat, a cylindrical groove is formed in the top seat, a plurality of sliding grooves are formed in the inner wall of the cylindrical groove, and the sliding grooves are communicated with the pin holes respectively. Through the matching relation of the locking block assembly and the elastic mechanism, the pin column can be automatically locked to complete the connection of the crimping mechanism to the instrument main body and the support frame, and during operation, the instrument main body only needs to be placed at the top of the support frame and can be quickly mounted and locked through pressing.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering surveying instrument, more particularly to a level for engineering surveying. BACKGROUND

[0002] The level is the 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 points on the ground according to the principle of level measurement. The main body of the instrument is mainly composed of a telescope, a tube level, a vertical shaft, a base, a foot screw and the like. When in use, the instrument is usually used with a tripod, which can provide stable support for the instrument.

[0003] However, the existing level is inconvenient to install, for example, the main body of the instrument needs to be placed on the top of the tripod and installed through bolts or auxiliary connecting members, which makes the installation and disassembly process of the instrument too cumbersome and inconvenient to use. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a level for engineering surveying to solve the problem of inconvenient installation and disassembly between the existing level and the tripod in use.

[0005] The utility model provides the following technical scheme: a level for engineering surveying, comprising an instrument main body and a support frame, the bottom end of the instrument main body is connected to the top end of the support frame through a press-fit mechanism, the press-fit mechanism comprises a top seat and a plurality of pin columns, the pin columns are fixedly connected to the top end of the support frame, the side wall of the pin column is provided with an annular embedded groove, a plurality of pin holes are formed in the bottom of the top seat, a cylindrical groove is arranged in the interior of the top seat, a plurality of sliding grooves are formed in the inner wall of the cylindrical groove, the sliding grooves are communicated with the pin holes, a plurality of lock block assemblies are slidably arranged in the sliding grooves, an elastic mechanism is arranged in the interior of the cylindrical groove, the elastic mechanism is used to drive the plurality of lock block assemblies to slide towards the pin holes, and the end of the lock block assembly in the pin hole is provided with a slope.

[0006] Further, the elastic mechanism comprises a moving disc, the top end of the moving disc is drivingly connected to the top of the cylindrical groove through a spring, a plurality of inclined struts are movably connected to the periphery of the moving disc, one end of the inclined struts is movably connected to one end of the lock block assemblies, the lock block assemblies have an inclination angle of more than ten degrees, a push rod is fixedly connected to the bottom end of the moving disc, the push rod penetrates out of the bottom of the top seat, and the top of the support frame is provided with a through hole for the push rod to pass through.

[0007] Further, the push rod is composed of a main rod and a limiting pad, the diameter of the limiting pad is larger than that of the main rod, and the limiting pad is used to limit the downward movement distance of the moving disc.

[0008] Furthermore, the height of the annular groove is greater than the height of the locking block assembly.

[0009] Furthermore, the locking block assembly consists of a main block, a shifting and pushing assembly, and a folding arm assembly. The main block has an internal interlayer, and the folding arm assembly is installed in the interlayer of the main block. When the folding arm assembly is folded, one end protrudes from the interlayer onto the top of the main block and abuts against the top of the annular groove. One end of the shifting and pushing assembly penetrates into the interlayer of the main block and connects with the folding arm assembly. The shifting and pushing assembly is used to control the folding of the folding arm assembly. The shifting and pushing assembly is connected to the main block via a spring.

[0010] Furthermore, the folding arm assembly includes a main arm plate and a U-shaped pusher head. The main arm plate has a groove on its side wall, and the main arm plate is movably sleeved within the main block interlayer. The main arm plate has an initial tilt angle. A connecting column is fixedly connected to the inner wall of the U-shaped pusher head, and the connecting column passes through the groove of the main arm plate.

[0011] Furthermore, the push assembly includes an end block, one end of which is fixedly connected to a connecting rod, which penetrates into the interlayer of the main block and is fixedly connected to the U-shaped push head.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] This utility model uses a pressing mechanism to connect the instrument body and the support frame. In use, by inserting the pin into the pin hole, the pin can be automatically locked through the cooperation of the locking block assembly and the elastic mechanism, thus completing the connection of the pressing mechanism between the instrument body and the support frame. During operation, the instrument body can be placed on top of the support frame and pressed to achieve quick installation and locking, thereby making the installation and disassembly of the level instrument simpler and faster.

[0014] Furthermore, the structure of the locking block assembly has been further optimized based on the above. When the locking block assembly is embedded in the annular groove to lock the position of the pin, it can also form an external support force on the annular groove, thereby preventing the pin from wobbling up and down inside the pin hole, thus improving the vertical stability of the instrument body after installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of the overall structure of this utility model;

[0017] Figure 3 This utility model Figure 1 A cross-sectional structural diagram of the pressing mechanism in the middle;

[0018] Figure 4 This utility model Figure 3The schematic view of the cross section structure of the pin column and the lock block assembly in the device;

[0019] Figure 5 The utility model discloses Figure 3 The schematic view of the enlarged structure at A in the device.

[0020] The figure mark is: 1, instrument main body, 2, crimping mechanism, 3, support frame, 21, top seat, 22, pin column, 23, pin hole, 24, lock block assembly, 25, elastic mechanism, 26, cylindrical groove, 241, main body block, 242, shift and push assembly, 243, folding arm assembly, 244, spring two, 2421, end block, 2422, connecting rod, 2431, main body arm plate, 2432, U-shaped push head, 2433, connecting column, 251, moving disc, 252, spring one, 253, push rod, 254, inclined strut, 255, main body rod, 256, limiting pad block, 222, annular embedded groove. Specific embodiments

[0021] The specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0022] With reference to Figures 1-3 The utility model provides a level for engineering surveying, including instrument main body 1, support frame 3, instrument main body 1 bottom end is through crimping mechanism 2 with support frame 3 top end butt joint, crimping mechanism 2 includes top seat 21, a plurality of pin columns 22, a plurality of pin columns 22 are fixedly connected at support frame 3 top end, and the lateral wall of pin column 22 is provided with annular embedded groove 222, and the bottom of top seat 21 is provided with a plurality of pin holes 23, and the inside of top seat 21 is provided with cylindrical groove 26, and a plurality of sliding grooves are set up in the inner wall of cylindrical groove 26, a plurality of sliding grooves are communicated with a plurality of pin holes 23 respectively, and a plurality of sliding grooves are slidably provided with lock block assembly 24, and elastic mechanism 25 is arranged in the inside of cylindrical groove 26, and elastic mechanism 25 is used to drive a plurality of lock block assemblies 24 to slide towards a plurality of pin hole 23 direction respectively, and the one end of lock block assembly 24 located in the inside of pin hole 23 is provided as a slope.

[0023] When installing between instrument main body 1 and support frame 3, by placing instrument main body 1 on support frame 3 top, in the process, a plurality of pin columns 22 are inserted into the inside of a plurality of pin holes 23 of top seat 21 bottom respectively, at this time, the top end of pin column 22 is abutted on the one end slope of lock block assembly 24, by exerting pressure to instrument main body 1 downwards, under the action of pressure, can make pin column 22 force lock block assembly 24 and make it slide to retract into the inside of cylindrical groove 26, in this process, elastic mechanism 25 is deformed under pressure, when pin column 22 is completely inserted into the inside of pin hole 23, the one end of lock block assembly 24 is aligned with the annular embedded groove 222 of pin column 22 lateral wall, under the elastic action of elastic mechanism 25, makes lock block assembly 24 reset and embeds in annular embedded groove 222, makes pin column 22 reach locking effect in the inside of pin hole 23, thereby completes the installation process between instrument main body 1 and support frame 3.

[0024] With reference to Figure 3 , the elastic mechanism 25 comprises a moving disc 251, the top end of the moving disc 251 is in transmission connection with the top of the cylindrical groove 26 through a spring 252, a plurality of inclined struts 254 are movably connected to the periphery of the moving disc 251, the other ends of the plurality of inclined struts 254 are movably connected with one end of a plurality of lock block assemblies 24, the plurality of lock block assemblies 24 have an inclination angle of more than ten degrees, the bottom end of the moving disc 251 is fixedly connected with a push rod 253, the bottom end of the push rod 253 penetrates through the bottom of the top base 21, and the top of the support frame 3 is provided with a through hole for the push rod 253 to pass through.

[0025] When the pin column 22 is completely inserted into the pin hole 23, the moving disc 251 can be moved downward by the elastic force of the spring 252, in this process, the plurality of inclined struts 254 are turned over, and the inclination angle gradually approaches to be horizontal, so that the plurality of inclined struts 254 can form a pushing force on the plurality of lock block assemblies 24 to make the plurality of lock block assemblies 24 slide, and then the plurality of lock block assemblies 24 are embedded in the annular embedding groove 222, and the bottom end of the push rod 253 is pushed to reset the moving disc 251, and then the plurality of lock block assemblies 24 slide out of the annular embedding groove 222, so that the pin column 22 can be quickly unlocked, and the instrument main body 1 can be conveniently disassembled.

[0026] With reference to Figure 5 , the push rod 253 is composed of a main rod 255 and a limiting pad 256, the diameter of the limiting pad 256 is greater than that of the main rod 255, and the limiting pad 256 is used to limit the downward movement distance of the moving disc 251.

[0027] When the moving disc 251 moves downward, the push rod 253 moves downward immediately, until the bottom of the limiting pad 256 abuts against the bottom of the cylindrical groove 26, so that the downward movement distance of the moving disc 251 can be limited, and thus the plurality of lock block assemblies 24 can not move too far when the pin column 22 is not inserted into the pin hole 23, so that the plurality of lock block assemblies 24 can not block the pin column 22 during the insertion process.

[0028] With reference to Figure 3 , 4 , the height of the annular embedding groove 222 is greater than that of the plurality of lock block assemblies 24.

[0029] Through the height setting of the annular embedding groove 222 and the plurality of lock block assemblies 24, the friction force generated during the embedding of the plurality of lock block assemblies 24 into the annular embedding groove 222 can be avoided, and the plurality of lock block assemblies 24 can be more easily aligned with the annular embedding groove 222, and the fault tolerance can be improved.

[0030] With reference to Figure 4The lock block assembly 24 is composed of a main block 241, a moving and pushing assembly 242, and a folding arm assembly 243. The main block 241 is internally provided with a sandwich layer. The folding arm assembly 243 is installed in the sandwich layer of the main block 241. One end of the folding arm assembly 243 is folded and protrudes from the top of the main block 241 and abuts against the top of the annular embedding groove 222. One end of the moving and pushing assembly 242 penetrates into the sandwich layer of the main block 241 and is connected with the folding arm assembly 243. The moving and pushing assembly 242 is used for controlling the folding of the folding arm assembly 243. The moving and pushing assembly 242 is drivingly connected with the main block 241 through a spring 244.

[0031] When the lock block assembly 24 is moved by the elastic mechanism 25, the moving and pushing assembly 242 is first subjected to a pushing force. Under the elastic effect of the spring 244, the main block 241 is synchronously moved, so that the main block 241 is embedded in the annular embedding groove 222 and one end of the main block 241 abuts against the inner wall of the annular embedding groove 222. At this time, the main block 241 is not displaced. With the continuous movement of the moving and pushing assembly 242, the folding arm assembly 243 is forced to displace. At this time, the folding arm assembly 243 is deformed under the force and abuts against the top of the annular embedding groove 222, so that the lock block assembly 24 forms an external supporting effect in the annular embedding groove 222. Thus, the up-and-down shaking of the pin column 22 in the pin hole 23 is avoided, and the stability of the connection between the instrument main body 1 and the support frame 3 is improved.

[0032] With reference to Figure 4 The folding arm assembly 243 comprises a main arm plate 2431 and a U-shaped push head 2432. The side wall of the main arm plate 2431 is provided with a sliding groove. The main arm plate 2431 is movably sleeved in the sandwich layer of the main block 241 and has an initial inclination angle. The inner wall of the U-shaped push head 2432 is fixedly connected with a connecting column 2433. The connecting column 2433 penetrates through the sliding groove of the main arm plate 2431.

[0033] One end of the connecting column 2433 is connected with the moving and pushing assembly 242. When the moving and pushing assembly 242 moves and pushes the U-shaped push head 2432 to displace, the connecting column 2433 slides in the sliding groove of the main arm plate 2431 and pushes the main arm plate 2431 to turn and increase the inclination angle. At this time, the top end of the main arm plate 2431 protrudes from the top of the main block 241 and abuts against the top of the annular embedding groove 222.

[0034] With reference to Figure 4 The moving and pushing assembly 242 comprises an end block 2421. One end of the end block 2421 is fixedly connected with a connecting rod 2422. The connecting rod 2422 penetrates into the sandwich layer of the main block 241 and is fixedly connected with the U-shaped push head 2432.

[0035] The basic principle, main features and advantages of the present application are shown and described above. The present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application. These changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A level for engineering surveying, comprising an instrument body (1), a support frame (3), characterised in that: The bottom end of the instrument body (1) is connected with the top end of the support frame (3) through the crimping mechanism (2), the crimping mechanism (2) comprises a top seat (21) and a plurality of pin columns (22), the pin columns (22) are fixedly connected at the top end of the support frame (3), the side wall of the pin column (22) is provided with an annular embedding groove (222), a plurality of pin holes (23) are formed in the bottom of the top seat (21), a cylindrical groove (26) is arranged in the top seat (21), a plurality of sliding grooves are formed in the inner wall of the cylindrical groove (26), the sliding grooves are communicated with the pin holes (23), a plurality of lock block assemblies (24) are slidably arranged in the sliding grooves, and an elastic mechanism (25) is arranged in the cylindrical groove (26) and used for driving the lock block assemblies (24) to slide towards the pin holes (23), and one end of the lock block assembly (24) in the pin hole (23) is provided as a slope.

2. The level for engineering surveying according to claim 1, characterized in that: The elastic mechanism (25) comprises a moving disc (251), the top end of the moving disc (251) is drivingly connected with the top of the cylindrical groove (26) through a spring (252), a plurality of inclined struts (254) are movably connected with the moving disc (251), one end of the inclined struts (254) is movably connected with one end of the lock block assemblies (24), the lock block assemblies (24) have an inclination angle of more than ten degrees, the bottom end of the moving disc (251) is fixedly connected with a push rod (253), the bottom end of the push rod (253) penetrates out of the bottom of the top seat (21), and the top of the support frame (3) is provided with a through hole for the push rod (253) to pass through.

3. The level for engineering surveying according to claim 2, characterized in that: The push rod (253) is composed of a main rod (255) and a limiting pad (256), the diameter of the limiting pad (256) is greater than that of the main rod (255), and the limiting pad (256) is used for limiting the downward movement distance of the moving disc (251).

4. The level for engineering surveying according to claim 1, characterized in that: The height of the annular embedding groove (222) is greater than that of the lock block assembly (24).

5. The level for engineering surveying according to claim 1, characterized in that: The lock block assembly (24) is composed of a main block (241), a moving and pushing assembly (242) and a folding arm assembly (243), the main block (241) is internally provided with a sandwich layer, the folding arm assembly (243) is mounted in the sandwich layer of the main block (241), one end of the folding arm assembly (243) is folded and protrudes from the top of the main block (241) and abuts against the top of the annular embedding groove (222), one end of the moving and pushing assembly (242) penetrates into the sandwich layer of the main block (241) and abuts against the folding arm assembly (243), the moving and pushing assembly (242) is used for controlling the folding of the folding arm assembly (243), and the moving and pushing assembly (242) is drivingly connected with the main block (241) through a spring (244).

6. The level for engineering surveying according to claim 5, characterized in that: The folding arm assembly (243) comprises a main arm plate (2431) and a U-shaped push head (2432), a sliding groove is formed in the side wall of the main arm plate (2431), the main arm plate (2431) is movably sleeved in the interlayer of the main body block (241), and the main arm plate (2431) has an initial inclination angle, and the inner wall of the U-shaped push head (2432) is fixedly connected with a connecting column (2433), and the connecting column (2433) passes through the sliding groove of the main arm plate (2431).

7. The level for engineering surveying according to claim 6, characterized in that: The moving and pushing assembly (242) comprises an end block (2421), one end of the end block (2421) is fixedly connected with a connecting rod (2422), and the connecting rod (2422) penetrates into the interlayer of the main body block (241) and is fixedly connected with the U-shaped push head (2432).

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