A fixed anti-falling device for surveying tripod

Abstract

The utility model relates to the technical field of tripod fixing, concretely to a kind of fixed anti-slip device for surveying and mapping tripod, it has the characteristics of being convenient to disassemble, including placing platform and telescopic prop, fixed ring is sleeved on telescopic prop, telescopic prop includes outer tube and telescopic rod that is sleeved in outer tube, the side of outer tube is provided with the embedded groove, and the embedded groove is inlaid and is installed with shell, slidingly installed with moving plate in shell, the one end of moving plate is provided with locking device, limit hole is set up on fixed ring, and it is set up with locking device and is inserted, positioning hole is set up on the outer wall of telescopic rod, and it is set up with locking device and is inserted to be fixed.

Description

Technical Field

[0001] This utility model relates to the field of tripod fixing technology, specifically a fixing and anti-slip device for surveying tripods. Background Technology

[0002] Surveying and mapping engineering involves measuring various information about space and the earth and creating various topographic maps. It studies the shape, size, and gravitational field of the Earth and other planets. The objects of study and mapping are very broad, mainly including various surface features and landforms, as well as underground geological structures, hydrology, mineral deposits, etc., such as mountains, rivers, houses, roads, and vegetation.

[0003] Chinese Utility Model Publication No. CN212004998U discloses a fixed anti-slip device for a surveying tripod, including a placement platform. A telescopic support column is fixedly connected to the middle of the lower surface of the placement platform. A retaining ring is sleeved on the middle of the surface of the telescopic support column. A locking post is fixedly connected to the side of the retaining ring. A support rod is locked to one side of the locking post. A fixing block is locked to one end of the support rod. An inclined support rod is locked to the side of the placement platform. The inclined support rod and the support rod are fixedly connected by the fixing block.

[0004] The device locks by inserting and locking components such as a telescopic support, a locking pin, and a return spring. However, since the return spring is a device whose elasticity is easily weakened, its reaction force on the locking pin decreases after a period of use, which reduces the stability after locking. Therefore, it needs to be replaced frequently. The return spring of this device is located inside the telescopic support and is restricted by components such as crossbars and baffles, making it inconvenient to disassemble. Moreover, the device cannot be used normally when disassembled, which reduces work efficiency to some extent. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a fixed anti-slip device for surveying tripods, which is easy to disassemble.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a fixed anti-slip device for a surveying tripod, comprising a placement platform and a telescopic support column, a fixing ring sleeved on the telescopic support column, the telescopic support column comprising an outer tube and a telescopic rod sleeved inside the outer tube, a fitting groove provided on one side of the outer tube, and a housing fitted into the fitting groove, a movable plate slidably installed inside the housing, a locking device provided at one end of the movable plate, a limit hole provided on the fixing ring and inserted into the locking device, and a positioning hole provided on the outer wall of the telescopic rod and inserted into the locking device for fixation.

[0009] Furthermore, the housing includes a retaining plate fitted into the retaining groove. The retaining plate has a T-shaped cross-section, and the end face of the retaining plate on the side where the telescopic rod is disassembled is arc-shaped.

[0010] Furthermore, the side wall of the housing has a through hole, through which the lock and device extend to the outside.

[0011] Furthermore, the locking device is fitted with a spring inside the housing, with one end of the spring fixedly mounted on the movable plate and the other end fixedly mounted on the inner wall of the housing.

[0012] Preferably, a plug is inserted into the upper part of the housing, and a gap is provided between the lower part of the plug and the movable plate.

[0013] Preferably, the sidewall of the housing is attached to the outer wall of the outer tube.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a fixed anti-slip device for surveying tripods, which has the following beneficial effects:

[0016] This surveying tripod uses a fixed anti-slip device. Through the interlocking of the clamping plate and the outer tube, it is convenient for workers to tap the bottom of the housing with tools to remove the clamping plate from the interlocking groove. After that, a new housing can be installed, and the device can continue to be used for work without affecting subsequent work. Moreover, the disassembled housing, lock, and device can be taken to a maintenance point for repair. The spring is more convenient to remove than that installed inside the outer tube, thus achieving the purpose of easy disassembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partially enlarged structural diagram of the outer tube and telescopic rod of this utility model;

[0019] Figure 3 This is an enlarged structural diagram showing the housing, locking plate, and locking device of this utility model.

[0020] Figure 4 This utility model Figure 1 The diagram shows a partially enlarged structural schematic at point A.

[0021] In the diagram: 1. Placement platform; 2. Fixing ring; 3. Outer tube; 4. Telescopic rod; 5. Fitting groove; 6. Housing; 7. Moving plate; 8. Locking device; 9. Positioning hole; 10. Clamping plate; 11. Spring; 12. Plug. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the prior art, a fixed anti-slip device for a surveying tripod includes a platform 1 and a telescopic support column. A fixing ring 2 is sleeved on the telescopic support column. A locking post is fixedly connected to the side of the fixing ring. A support rod is fitted into one side of the locking post. A fixing block is fitted into one end of the support rod. An inclined support rod is fitted into the side of the platform 1. The inclined support rod and the support rod are fixedly connected by the fixing block. The inclined support rod is supported on the ground, which improves the anti-slip performance of the fixed anti-slip device for the surveying tripod. This is the prior art and will not be elaborated on here.

[0024] Please see Figure 1-3 This utility model discloses a fixed anti-slip device for a surveying tripod. The telescopic support includes an outer tube 3 and a telescopic rod 4 sleeved inside the outer tube 3. The telescopic rod 4 slides up and down inside the outer tube 3 to adjust its height. A fitting groove 5 is provided on one side of the outer tube 3, and a housing 6 is fitted into the fitting groove 5. The housing 6 is installed on the outer tube 3 by fitting, which facilitates disassembly and installation. A movable plate 7 is slidably installed inside the housing 6. A locking device 8 is provided at one end of the movable plate 7. Pulling the locking device 8 moves the movable plate 7 inside the housing 6. A limiting hole is provided on the fixing ring 2 and is inserted into the locking device 8. A positioning hole 9 is provided on the outer wall of the telescopic rod 4 and is inserted into the locking device 8 for fixation. One end of the locking device is inserted into the limiting hole of the fixing ring 2 and then into the positioning hole 9 of the telescopic rod 4 to fix the outer tube 3 and the telescopic rod 4, preventing the platform 1 from pressing down on the telescopic rod 4 under external force and extending into the outer tube 3.

[0025] The housing 6 includes a retaining plate 10 fitted into the fitting groove 5. The retaining plate 10 has a T-shaped cross-section, and the end face of the retaining plate 10 on the side where the telescopic rod 4 is disassembled is arc-shaped, which facilitates the fitting groove 5 to be set according to the shape of the outer tube 3.

[0026] The side wall of the housing 6 has a through hole, through which the lock and device extend to the outside, making it convenient for the locking device 8 to pass through the through hole for installation.

[0027] The locking device 8 is fitted with a spring 11 inside the housing 6. One end of the spring 11 is fixed on the movable plate 7, and the other end is fixed on the inner wall of the housing 6. The spring 11 provides a pushing force to the movable plate 7, so that it fits against one side wall of the housing 6, away from the through hole, so that the upper part of the locking device 8 can be inserted into the positioning hole 9 of the telescopic rod 4 for fixing.

[0028] A plug 12 is inserted into the upper part of the housing 6. Installing the plug 12 on the upper part of the housing 6 can prevent foreign objects from entering the housing 6. A gap is provided between the lower part of the plug 12 and the moving plate 7 so as not to affect the movement of the moving plate 7.

[0029] The sidewall of the housing 6 is attached to the outer wall of the outer tube 3, which improves the stability between the two.

[0030] In summary, the fixed anti-slip device for this surveying tripod is used by fitting the housing 6 into the fitting groove 5 of the outer tube 3 through the clamping plate 10, ensuring that the side wall of the housing 6 is in contact with the outer wall of the outer tube 3. The plug 12 is inserted into the upper part of the housing 6 to prevent foreign objects from entering the housing 6. When adjusting the height, the locking device 8 is pulled, which drives the moving plate 7 to move inside the housing 6. At this time, the spring 11 is compressed. The locking device 8 is pulled out from the positioning hole 9 of the telescopic rod 4 and the limiting hole of the fixing ring 2, releasing the fixation between the outer tube 3 and the telescopic rod 4. The telescopic rod 4 is slid up and down to move to the required height inside the outer tube 3. The locking device 8 is released. Under the pushing force of the spring 11, the moving plate 7 adheres to one side wall of the housing 6 and moves away from the through hole. The upper part of the locking device 8 is inserted into the positioning hole 9 of the telescopic rod 4 and passes through the limiting hole of the fixing ring 2, fixing the outer tube 3 and the telescopic rod 4. This prevents the platform 1 from pressing down on the telescopic rod 4 and extending it into the outer tube 3 under external force. After a period of use, the elasticity of the spring 11 weakens and needs to be replaced. Simply remove the locking plate 10 from the fitting groove 5, and the housing 6 can be taken to the maintenance location to replace the spring 11 inside the housing 6 and replace it with a new one to continue working.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixed anti-falling device for surveying tripods, comprising a placing table (1) and telescopic supports, on which telescopic supports a fixing ring (2) is sleeved, characterized in that: The telescopic support includes an outer tube (3) and a telescopic rod (4) sleeved inside the outer tube (3). A fitting groove (5) is provided on one side of the outer tube (3), and a housing (6) is fitted inside the fitting groove (5). A movable plate (7) is slidably installed inside the housing (6). A locking device (8) is provided at one end of the movable plate (7). A limit hole is provided on the fixing ring (2), and it is inserted into the locking device (8). A positioning hole (9) is provided on the outer wall of the telescopic rod (4), and it is inserted into the locking device (8) for fixation.

2. The fixed anti-falling device for surveying tripod according to claim 1, characterized in that: The housing (6) includes a retaining plate (10) fitted into the fitting groove (5). The cross-section of the retaining plate (10) is T-shaped, and the end face of the retaining plate (10) on the side where the telescopic rod (4) is disassembled is arc-shaped.

3. The fixed anti-falling device for surveying tripod according to claim 2, characterized in that: The side wall of the housing (6) has a through hole, through which the lock and device extend to the outside.

4. The fixed anti-falling device for surveying tripod according to claim 3, characterized in that: The locking device (8) is fitted with a spring (11) inside the housing (6). One end of the spring (11) is fixed on the movable plate (7), and the other end is fixed on the inner wall of the housing (6).

5. The fixed anti-falling device for surveying tripod according to claim 4, characterized in that: A plug (12) is inserted into the upper part of the housing (6), and a gap is provided between the lower part of the plug (12) and the moving plate (7).

6. The anti-falling device for surveying tripod according to any one of claims 1-5, characterized in that: The sidewall of the shell (6) is attached to the outer wall of the outer tube (3).

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