Pressure testing machine for manhole cover detection

Abstract

The utility model discloses a pressure testing machine for manhole cover detection, which relates to the technical field of manhole cover detection equipment and comprises a working table, a placing plate is fixedly connected above the working table, a limiting device is arranged above the placing plate, two supporting columns are fixedly connected to the left side and the right side above the working table, and the left side and the right side of the working table are fixedly connected with the limiting device. A connecting plate is fixedly connected to the lower portion of the air cylinder, a pressure detector is fixedly connected to the lower portion of the connecting plate, a pressing plate is fixedly connected to the lower portion of the pressure detector, groove bodies are formed in the opposite faces of the two supporting columns, and guide rods are fixedly connected to the inner walls of the groove bodies; the opposite faces of the sliding blocks are fixedly connected with connecting rods. By arranging the placing plate and the limiting device, well lids with different radiuses can be clamped and fixed, it is guaranteed that the well lids do not deviate during detection, and the detection accuracy is guaranteed; the supporting columns, the pressing plate, the guide rods and the connecting rods are arranged, so that the stability of pressing plate testing is ensured, and the pressing plate is prevented from deviating.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole cover detection equipment, in particular to a pressure testing machine for manhole cover detection. Background Art

[0002] A manhole cover is a cover covering the wellhead, usually made of metal or plastic. Its main function is to protect the wellhead and prevent people or objects from falling into the well. It can also prevent theft, rain, and dust.

[0003] At present, during the production and processing of manhole covers, it is necessary to test the pressure they are subjected to in order to ensure their safe use. Existing manhole cover pressure detection devices generally use pressure testing machines for detection. However, the existing testing machines have no fixing devices and cannot fix the manhole covers. When the manhole covers are pressurized, the manhole covers will be offset, affecting the accuracy of the detection of the testing machine. In addition, the testing machines cannot be adjusted according to the specifications of the manhole covers, and have low applicability. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a pressure testing machine for manhole cover inspection. By providing a placement plate and a limit device, it can clamp and fix manhole covers of different radii to ensure that the manhole covers will not deviate during inspection, thereby ensuring the accuracy of the inspection. Support columns, pressure plates, guide rods and connecting rods are provided to ensure the stability of the pressure plate test and avoid deviation of the pressure plate.

[0005] The utility model also provides a pressure testing machine for manhole cover detection, comprising: a workbench, a placement plate fixedly connected to the top of the workbench, a limiting device arranged above the placement plate, two support columns fixedly connected to the left and right sides of the top of the workbench, a top plate fixedly connected to the opposite side of the two support columns, a cylinder fixedly connected to the bottom of the top plate, a connecting plate fixedly connected to the bottom of the cylinder, a pressure detector fixedly connected to the bottom of the connecting plate, a pressure detector fixedly connected to the bottom of the pressure detector, a slot body arranged on the opposite side of the two support columns, a guide rod fixedly connected to the inner wall of the slot body, a sliding block sleeved on the outer side of the guide rod, and a connecting rod fixedly connected to the opposite side of the sliding block. By setting the placement plate and the limiting device, manhole covers of different radii can be clamped and fixed, ensuring that the manhole covers will not deviate during detection, and ensuring the accuracy of detection; supporting columns, pressing plates, guide rods and connecting rods are arranged to ensure the stability of the pressing plate test and avoid the pressing plate from deviating.

[0006] According to the pressure testing machine for manhole cover inspection, the limiting device includes a plurality of slide grooves fixedly connected to the top of the placement plate, a driving groove is arranged above the placement plate, the inner walls of the slide grooves are provided with screw rods, one end of the screw rod passing through the slide groove is fixedly connected to the first gear, the screw rod is located at the outer side surface of one end of the inner wall of the slide groove and is sleeved with a moving block, one side of the moving block is fixedly connected to a limiting block, the inner bottom wall of the driving groove is fixedly connected to a motor, and the output end of the motor is fixedly connected to a second gear.

[0007] According to the pressure testing machine for manhole cover inspection, there are four slide grooves, and the four slide grooves are symmetrically distributed on the outside of the driving groove with the center of the placement plate as the central axis.

[0008] According to the pressure testing machine for manhole cover inspection, the first gear is meshed and connected with the second gear.

[0009] According to the pressure testing machine for manhole cover inspection, the limit block is in the shape of an arc, and a protective pad is attached to the inner wall of the limit block.

[0010] According to the pressure testing machine for manhole cover inspection, one end of the connecting rod away from the sliding block is fixedly connected to both sides of the connecting plate.

[0011] According to the pressure testing machine for manhole cover inspection, four fixing seats are fixedly connected to the outer side of the workbench, and the four fixing seats are symmetrically distributed.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0014] Figure 1 This is an overall three-dimensional structural diagram of a pressure testing machine for manhole cover inspection according to the utility model;

[0015] Figure 2 This is a side-view stereoscopic structural diagram of the overall structure of a pressure testing machine for manhole cover inspection according to the utility model;

[0016] Figure 3 This is a top view of the working table of a pressure testing machine for manhole cover inspection of the utility model;

[0017] Figure 4 This is an overall front view structural diagram of a pressure testing machine for manhole cover inspection according to the utility model.

[0018] Legend:

[0019] 1. Workbench; 2. Placement plate; 3. Limit device; 4. Support column; 5. Top plate; 6. Cylinder; 7. Connecting plate; 8. Pressure detector; 9. Pressing plate; 10. Slot body; 11. Guide rod; 12. Sliding block; 13. Connecting rod; 301. Slide slot; 302. Driving slot; 303. Screw rod; 304. First gear; 305. Moving block; 306. Limit block; 307. Motor; 308. Second gear; 101. Fixed seat. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] Reference Figure 1-4 The utility model embodiment is a pressure testing machine for manhole cover detection, which includes: a workbench 1, the outer side of the workbench 1 is fixedly connected with four fixing seats 101, and the four fixing seats 101 are symmetrically distributed, the stability of the workbench 1 is improved by the fixing seats 101, the upper part of the workbench 1 is fixedly connected with a placing plate 2, and a limiting device 3 is arranged above the placing plate 2, two supporting columns 4 are fixedly connected to the left and right sides of the upper part of the workbench 1, the opposite side of the two supporting columns 4 is fixedly connected with a top plate 5, the lower part of the top plate 5 is fixedly connected with a cylinder 6, and the lower part of the cylinder 6 is fixedly connected with a connecting rod 6. A connecting plate 7 is provided, and a pressure detector 8 is fixedly connected to the bottom of the connecting plate 7. A pressure plate 9 is fixedly connected to the bottom of the pressure detector 8. A groove body 10 is provided on the opposite side of the two support columns 4. A guide rod 11 is fixedly connected to the inner wall of the groove body 10. A sliding block 12 is sleeved on the outer side surface of the guide rod 11. A connecting rod 13 is fixedly connected to the opposite side of the sliding block 12. One end of the connecting rod 13 away from the sliding block 12 is fixedly connected to both sides of the connecting plate 7. The connecting rod 13 and the sliding block 12 improve the stability of the connection plate 7 when rising and falling, thereby improving the stability of the pressure plate 9 when rising and falling.

[0022] The limiting device 3 includes a plurality of slide grooves 301 fixedly connected to the top of the placement plate 2, and there are four slide grooves 301, and the four slide grooves 301 are symmetrically distributed on the outside of the driving groove 302 with the center of the placement plate 2 as the central axis. The driving groove 302 is arranged above the placement plate 2, and the inner wall of the slide groove 301 is provided with a screw rod 303, and the screw rod 303 passes through one end of the slide groove 301 and is fixedly connected to the first gear 304, and the screw rod 303 is located at the outer side surface of one end of the inner wall of the slide groove 301 and is sleeved with a moving block 305, and the moving block 305 is provided on the outer side surface of the inner wall of the slide groove 301. One side of the block 305 is fixedly connected with a limiting block 306, which is in the shape of an arc, and a protective pad is attached to the inner wall of the limiting block 306. The outer wall of the circular manhole cover is limited by the arc-shaped limiting block 306. The inner bottom wall of the driving groove 302 is fixedly connected with a motor 307, and the output end of the motor 307 is fixedly connected with a second gear 308. The first gear 304 is meshed and connected with the second gear 308, and the first gear 304 is driven to rotate by the rotation of the second gear 308. By setting the placement plate 2 and the limiting device 3, manhole covers of different radii can be clamped and fixed, ensuring that the manhole cover will not deviate during detection, and ensuring the accuracy of detection; the support column 4, the pressing plate 9, the guide rod 11 and the connecting rod 13 are set to ensure the stability of the pressing plate 9 test and avoid the pressing plate 9 from deviating.

[0023] Working principle: When used for the first time, the workbench 1 is fixed by the fixing seat 101, and then the manhole cover to be inspected is placed just above the center of the placement plate 2, and the motor 307 is started to output the second gear 308 to rotate, and the second gear 308 is meshed and connected with the first gear 304 to drive the first gear 304 to rotate, and the first gear 304 rotates and drives the screw rod 303 to make the moving block 305 slide inside the slide groove 301, and the moving block 305 slides and drives the limit block 306 to slide in the opposite direction, so that the four limit blocks 306 limit the outer wall of the manhole cover, and then the connecting plate 7 is lowered by the starting cylinder 6, so that the pressure plate 9 is pressed down to the top of the manhole cover and the pressure on the manhole cover is detected by the pressure detector 8, and secondly, when the connecting plate 7 descends or rises, it will drive the sliding block 12 at one end of the connecting rod 13 to slide on the inner wall of the groove body 10, and at the same time, the sliding block 12 is slidably connected with the guide rod 11, and the stability of the connecting plate 7 when rising and falling is improved through the guide rod 11, the sliding block 12 and the connecting rod 13.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A pressure testing machine for manhole cover detection, comprising: A workbench (1) is characterized in that a placement plate (2) is fixedly connected to the top of the workbench (1), a limiting device (3) is arranged above the placement plate (2), two support columns (4) are fixedly connected to the left and right sides of the top of the workbench (1), the opposite sides of the two support columns (4) are fixedly connected to a top plate (5), a cylinder (6) is fixedly connected to the bottom of the top plate (5), a connecting plate (7) is fixedly connected to the bottom of the cylinder (6), a pressure detector (8) is fixedly connected to the bottom of the connecting plate (7), a pressure detector (8) is fixedly connected to the bottom of the pressure detector (8), a groove body (10) is arranged on the opposite sides of the two support columns (4), the inner walls of the groove bodies (10) are fixedly connected to guide rods (11), the outer side surfaces of the guide rods (11) are sleeved with sliding blocks (12), and the opposite sides of the sliding blocks (12) are fixedly connected to connecting rods (13).

2. A pressure testing machine for manhole cover inspection according to claim 1, characterized in that: The limiting device (3) comprises a plurality of slide grooves (301) fixedly connected to the top of the placement plate (2); a driving groove (302) is arranged above the placement plate (2); the inner wall of each of the slide grooves (301) is provided with a screw rod (303); one end of each of the screw rods (303) passing through the slide groove (301) is fixedly connected to a first gear (304); the outer side surface of each of the screw rods (303) located at one end of the inner wall of the slide groove (301) is sleeved with a moving block (305); one side of each of the moving blocks (305) is fixedly connected to a limiting block (306); the inner bottom wall of the driving groove (302) is fixedly connected to a motor (307); and the output end of the motor (307) is fixedly connected to a second gear (308).

3. A pressure testing machine for manhole cover inspection according to claim 2, characterized in that: There are four slide grooves (301), and the four slide grooves (301) are symmetrically distributed on the outside of the driving groove (302) with the center of the placement plate (2) as the central axis.

4. A pressure testing machine for manhole cover inspection according to claim 2, characterized in that: The first gear (304) is meshingly connected with the second gear (308).

5. A pressure testing machine for manhole cover inspection according to claim 2, characterized in that: The limiting block (306) is in the shape of an arc, and a protective pad is attached to the inner wall of the limiting block (306).

6. A pressure testing machine for manhole cover inspection according to claim 1, characterized in that: One end of the connecting rod (13) away from the sliding block (12) is fixedly connected to two sides of the connecting plate (7).

7. A pressure testing machine for manhole cover inspection according to claim 1, characterized in that: Four fixing seats (101) are fixedly connected to the outer side of the workbench (1), and the four fixing seats (101) are symmetrically distributed.

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