Positioning jig suitable for well lid bearing capacity detection

Abstract

The utility model discloses a positioning jig suitable for manhole cover bearing capacity detection, which comprises a bottom plate, an adjusting column, a threaded rod, a lifting plate, an experiment platform, a test pressing block and a conveying belt, a driving motor drives the threaded rod to rotate, and the threaded rod rotates to drive a threaded sleeve in threaded connection with the threaded rod to move up and down. The threaded sleeves are fixedly connected to the adjusting plates in a sleeving mode, and the adjusting plates are fixedly connected to the two ends of the lifting plate, so that the lifting plate can ascend and descend in the vertical direction of the adjusting columns. Meanwhile, a pushing plate arranged at the side end of the well lid and a driving air cylinder used for driving the pushing plate to do reciprocating motion are matched, so that the well lid on the lifting plate can be continuously conveyed to the experiment platform through the conveying belt, automatic feeding and automatic conveying in the well lid detection process can be achieved, manual feeding is not needed, and the working efficiency is improved. And the whole device is easier to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to manhole cover bearing capacity detection technical field, specifically related to a kind of positioning fixture suitable for manhole cover bearing capacity detection. BACKGROUND

[0002] Manhole cover is mainly used for covering road or home deep well in city, to prevent people or object falling. Since manhole cover is used in large quantities in infrastructure construction, and manhole cover needs to bear gravity in many occasions, for example, vehicle rolling, therefore, manhole cover needs to have high compression resistance, bending resistance, impact resistance and toughness. Manhole cover will not be crushed and damaged, and the state has relevant strength indicators for manhole cover.

[0003] The existing Chinese patent with authorization announcement No.CN209198106U discloses a kind of manhole cover bearing capacity detector, including detection table, support, support rod and pressure structure. Pressure structure is positioned by guide column and the like and is sleeved on the positioning plate of support rod, simultaneously cooperates with the limiting structure and clamping block on detection table, to facilitate manhole cover detection positioning accurate, suitable for multiple manhole cover continuous detection operation. The whole detection operation process is simple, and it is not necessary to carry out manhole cover center positioning operation before each detection, effectively improve detection efficiency.

[0004] The above-mentioned prior art solution has the following disadvantages: in the use process, manhole cover needs to be manually carried to detection table, and there is still certain improvement space in ease of use. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of positioning fixture suitable for manhole cover bearing capacity detection, to solve the technical problem of prior art in the use process, manhole cover needs to be manually carried to detection table.

[0006] The technical problem to be solved by the utility model can be realized by the following technical solutions:

[0007] A kind of positioning fixture suitable for manhole cover bearing capacity detection, comprising:

[0008] Bottom plate, support base is fixedly connected on bottom plate, experimental platform is fixedly connected on the upper end of support base, mounting bracket is fixedly connected on the upper end of experimental platform, mounting top frame is fixedly connected on mounting bracket, and test pressure block for carrying out pressure test to manhole cover is arranged on the lower end of mounting top frame and can be lifted;

[0009] Adjusting column, adjusting column is symmetrically arranged on bottom plate, and lifting plate that can be lifted is arranged between symmetrically arranged adjusting column, manhole cover is arranged in stack on lifting plate, push plate for pushing manhole cover to do visual screen movement is arranged on one side of lifting plate, conveying belt for conveying manhole cover to carry out horizontal movement is arranged on the other side of lifting plate, and conveying belt is fixedly installed on experimental platform.

[0010] As a further embodiment of this utility model: a test cylinder is fixedly installed on the mounting top frame, and a cylinder telescopic rod two is fixedly connected to the drive end of the test cylinder, and a test pressure block is fixedly installed on the lower end of the cylinder telescopic rod two.

[0011] As a further embodiment of this utility model: a test through slot is provided through the experimental platform, and the test through slot is located directly below the test pressure block.

[0012] As a further embodiment of this utility model: an installation groove is provided through the experimental platform, the installation groove is connected to the test through groove, and the conveyor belt is fixedly installed in the installation groove.

[0013] As a further embodiment of this utility model: two symmetrically arranged adjustment columns are provided, and a limiting groove is opened on the cross-section of the two adjustment columns that are close to each other.

[0014] As a further embodiment of this utility model: a vertically arranged threaded rod is rotatably arranged inside the limiting groove, with both ends of the threaded rod rotatably connected to the inner wall of the limiting groove, and a bearing is embedded through the inner wall of the limiting groove, with the outer ring of the bearing being fixedly connected to the inner wall of the limiting groove.

[0015] As a further embodiment of this utility model: the threaded rod is sleeved and fixedly connected to the inner ring of the bearing, the top of the adjusting column is fixedly connected to a drive motor, the drive end of the drive motor is fixedly connected to a drive shaft, and the drive shaft is coaxially fixedly connected to the threaded rod.

[0016] As a further embodiment of this utility model: a threaded sleeve is threadedly connected to the threaded rod, and adjusting plates are fixedly connected to both ends of the lifting plate. The threaded sleeve is sleeved through and fixedly connected to the adjusting plate.

[0017] As a further embodiment of this utility model: a cylinder fixing column is fixedly connected to the base plate, a cylinder fixing bracket is fixedly connected to the cylinder fixing column, and a drive cylinder is fixedly connected to the cylinder fixing bracket.

[0018] As a further embodiment of this utility model: a cylinder extension rod is fixedly connected to the drive end of the drive cylinder, and a push plate is fixedly connected to the cylinder extension rod.

[0019] The beneficial effects of this utility model are:

[0020] 1. This utility model uses a drive motor to drive a threaded rod to rotate. The rotation of the threaded rod can drive the threaded sleeve connected to the threaded rod to move up and down. The threaded sleeve is fitted and fixedly connected to an adjustment plate. The adjustment plate is fixedly connected to both ends of a lifting plate, so that the lifting plate can move up and down along the vertical direction of the adjustment column. Since several manhole covers are stacked on the lifting plate, and with the push plate set on the side of the manhole cover and the drive cylinder used to drive the push plate to reciprocate, the manhole covers on the lifting plate can be continuously transported to the experimental platform by the conveyor belt. This realizes automatic feeding and automatic conveying in the manhole cover testing process, eliminating the need for manual feeding and making the device easier to use.

[0021] 2. The experimental platform of this utility model is fixedly equipped with a mounting frame, a mounting top frame is fixedly connected to the mounting frame, a test cylinder is fixedly connected to the mounting top frame, a cylinder telescopic rod two is fixedly connected to the drive end of the test cylinder, a test pressure block is fixedly connected to the cylinder telescopic rod two, and a test through slot is opened through the experimental platform. The test through slot is located directly below the test pressure block. The setting of the test cylinder and the test through slot can realize the automated testing of the manhole cover, which is conducive to further improving the ease of use of the device. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model. Figure One ;

[0024] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model. Figure Two ;

[0025] Figure 3 This is a utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Base plate; 2. Adjusting column; 3. Limiting groove; 4. Threaded rod; 5. Drive motor; 6. Lifting plate; 7. Adjusting plate; 8. Threaded sleeve; 9. Drive cylinder; 10. Cylinder telescopic rod one; 11. Push plate; 12. Support base frame; 13. Experimental platform; 14. Mounting frame; 15. Mounting top frame; 16. Test cylinder; 17. Cylinder telescopic rod two; 18. Test pressure block; 19. Test through groove; 20. Mounting groove; 21. Conveyor belt; 22. Cylinder fixing column; 23. Cylinder fixing frame. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-3 As shown, a positioning fixture suitable for testing the load-bearing capacity of manhole covers includes a base plate 1 and adjusting columns 2. A support frame 12 is fixedly connected to the base plate 1. An experimental platform 13 is fixedly connected to the upper end of the support frame 12. An installation frame 14 is fixedly connected to the upper end of the experimental platform 13. An installation top frame 15 is fixedly connected to the installation frame 14. A test pressure block 18 that can be raised and lowered and used to pressurize the manhole cover is provided at the lower end of the installation top frame 15. The adjusting columns 2 are symmetrically arranged on the base plate 1. A lifting plate 6 that can be raised and lowered is provided between the symmetrically arranged adjusting columns 2. Manhole covers are stacked on the lifting plate 6. A push plate 11 for pushing the manhole cover to move is provided on one side of the lifting plate 6. A conveyor belt 21 for transporting the manhole cover to move horizontally is provided on the other side of the lifting plate 6. The conveyor belt 21 is fixedly installed on the experimental platform 13.

[0029] A test cylinder 16 is fixedly installed on the mounting frame 15. A cylinder telescopic rod 17 is fixedly connected to the drive end of the test cylinder 16. A test pressure block 18 is fixedly installed on the lower end of the cylinder telescopic rod 17. A test through slot 19 is opened through the experimental platform 13. The test through slot 19 is located directly below the test pressure block 18. An installation slot 20 is opened through the experimental platform 13. The installation slot 20 is connected to the test through slot 19. A conveyor belt 21 is fixedly installed in the installation slot 20.

[0030] Two symmetrically arranged adjusting columns 2 are provided. Limiting grooves 3 are opened on the cross-section of the two adjusting columns 2 that are close to each other. A vertically arranged threaded rod 4 is rotatably installed in the limiting groove 3. The two ends of the threaded rod 4 are rotatably connected to the inner wall of the limiting groove 3. A bearing is embedded through the inner wall of the limiting groove 3. The outer ring of the bearing is fixedly connected to the inner wall of the limiting groove 3. The threaded rod 4 is sleeved and fixedly connected to the inner ring of the bearing. A drive motor 5 is fixedly connected to the top of the adjusting column 2. A drive shaft is fixedly connected to the drive end of the drive motor 5. The drive shaft is coaxially fixedly connected to the threaded rod 4.

[0031] A threaded sleeve 8 is threadedly connected to the threaded rod 4, and an adjusting plate 7 is fixedly connected to both ends of the lifting plate 6. The threaded sleeve 8 is threaded through and fixedly connected to the adjusting plate 7.

[0032] A cylinder fixing column 22 is fixedly connected to the base plate 1. A cylinder fixing bracket 23 is fixedly connected to the cylinder fixing column 22. A drive cylinder 9 is fixedly connected to the cylinder fixing bracket 23. A cylinder telescopic rod 10 is fixedly connected to the drive end of the drive cylinder 9. A push plate 11 is fixedly connected to the cylinder telescopic rod 10.

[0033] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios:

[0034] In use, the threaded rod 4 is driven to rotate by the drive motor 5. The rotation of the threaded rod 4 causes the threaded sleeve 8 connected to the threaded rod 4 to move up and down. The threaded sleeve 8 is fitted and fixedly connected to the adjusting plate 7, which is fixedly connected to both ends of the lifting plate 6. This allows the lifting plate 6 to move up and down along the vertical direction of the adjusting column 2. Since several manhole covers are stacked on the lifting plate 6, and with the push plate 11 on the side of the manhole cover and the drive cylinder 9 for driving the push plate 11 to reciprocate, the manhole covers on the lifting plate 6 can be continuously transported to the experimental platform 13 by the conveyor belt 21, thereby realizing the automatic detection of manhole covers. The automatic feeding and conveying eliminates the need for manual feeding, making the device easier to use. A mounting frame 14 is fixedly installed on the experimental platform 13, and a mounting top frame 15 is fixedly connected to the mounting frame 14. A test cylinder 16 is fixedly connected to the mounting top frame 15, and a cylinder extension rod 17 is fixedly connected to the drive end of the test cylinder 16. A test pressure block 18 is fixedly connected to the cylinder extension rod 17. A test through slot 19 is provided through the experimental platform 13 and is located directly below the test pressure block 18. The test cylinder 16 and the test through slot 19 enable automated testing of manhole covers, further improving the ease of use of the device.

[0035] The foregoing has described several embodiments of this utility model in detail, but these embodiments are not limited thereto and should not be considered as limiting the scope of this utility model. All equivalent changes and improvements made within the scope of the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A positioning fixture suitable for testing the load-bearing capacity of manhole covers, characterized in that, include: A base plate (1) is fixedly connected to a support frame (12). An experimental platform (13) is fixedly connected to the upper end of the support frame (12). An installation frame (14) is fixedly connected to the upper end of the experimental platform (13). An installation top frame (15) is fixedly connected to the installation frame (14). A test block (18) that can be raised and lowered and used to pressurize the manhole cover is provided at the lower end of the installation top frame (15). Adjustment column (2) is symmetrically arranged on the base plate (1). A lifting plate (6) is arranged between the symmetrically arranged adjustment columns (2). A manhole cover is stacked on the lifting plate (6). A push plate (11) is arranged on one side of the lifting plate (6) to push the manhole cover to make a video screen movement. A conveyor belt (21) is arranged on the other side of the lifting plate (6) to transport the manhole cover to make a horizontal movement. The conveyor belt (21) is fixedly installed on the experimental platform (13).

2. A positioning fixture for testing the bearing capacity of manhole covers according to claim 1, characterized in that, A test cylinder (16) is fixedly installed on the mounting bracket (15). A cylinder extension rod (17) is fixedly connected to the drive end of the test cylinder (16). A test pressure block (18) is fixedly installed on the lower end of the cylinder extension rod (17).

3. A positioning fixture for testing the bearing capacity of manhole covers according to claim 1, characterized in that, The experimental platform (13) has a through-hole (19) which is located directly below the test block (18).

4. A positioning fixture for testing the bearing capacity of manhole covers according to claim 3, characterized in that, An installation slot (20) is provided through the experimental platform (13). The installation slot (20) is connected to the test through slot (19). The conveyor belt (21) is fixedly installed in the installation slot (20).

5. A positioning fixture for testing the bearing capacity of manhole covers according to claim 1, characterized in that, Two symmetrical adjustment columns (2) are provided, and a limit groove (3) is opened on the cross section of the two adjustment columns (2) that are close to each other.

6. A positioning fixture for testing the bearing capacity of manhole covers according to claim 5, characterized in that, A vertically arranged threaded rod (4) is rotatably installed inside the limiting groove (3). The two ends of the threaded rod (4) are rotatably connected to the inner wall of the limiting groove (3). A bearing is embedded through the inner wall of the limiting groove (3), and the outer ring of the bearing is fixedly connected to the inner wall of the limiting groove (3).

7. A positioning fixture for testing the bearing capacity of manhole covers according to claim 6, characterized in that, The threaded rod (4) is sleeved and fixedly connected to the inner ring of the bearing. The top of the adjusting column (2) is fixedly connected to the drive motor (5). The drive end of the drive motor (5) is fixedly connected to the drive shaft. The drive shaft is coaxially fixedly connected to the threaded rod (4).

8. A positioning fixture for testing the bearing capacity of manhole covers according to claim 1, characterized in that, A threaded sleeve (8) is threadedly connected to the threaded rod (4), and an adjusting plate (7) is fixedly connected to both ends of the lifting plate (6). The threaded sleeve (8) is threaded through and fixedly connected to the adjusting plate (7).

9. A positioning fixture for testing the bearing capacity of manhole covers according to claim 1, characterized in that, A cylinder fixing column (22) is fixedly connected to the base plate (1), a cylinder fixing bracket (23) is fixedly connected to the cylinder fixing column (22), and a drive cylinder (9) is fixedly connected to the cylinder fixing bracket (23).

10. A positioning fixture for testing the bearing capacity of manhole covers according to claim 9, characterized in that, A cylinder extension rod (10) is fixedly connected to the drive end of the drive cylinder (9), and a push plate (11) is fixedly connected to the cylinder extension rod (10).

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