Stabilizing structure of manhole cover testing machine

Abstract

The utility model discloses a stabilizing structure of a manhole cover testing machine, which belongs to the technical field of manhole cover testing machines and comprises a base, a connecting rod is mounted on the top wall of the base, and a first detection device is mounted on the inner wall of the base. By arranging an adjusting structure and an electric telescopic rod, after a well lid is inserted into a placement plate, the electric telescopic rod is started to drive a fixing plate to move to the position below the well lid, then a first detection device is started to detect the strength of the well lid, then a left-right rotating lead screw is screwed to drive an arc-shaped block to fix the well lid to a certain degree, and then a motor is started to drive the well lid to turn downwards; and then the first detection device is started to detect the manhole cover, the first detection device and the second detection device can also be started at the same time to extrude the two faces of the manhole cover and further detect the strength of the manhole cover, manual overturning is effectively avoided through the arranged adjusting structure, the working efficiency is improved, and the safety problem caused to personnel is effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of manhole cover testing machines, specifically, it relates to a stable structure for a manhole cover testing machine. Background Technology

[0002] The manhole cover testing machine is mainly used to ensure that the testing machine can maintain a high degree of stability and accuracy when conducting load-bearing capacity and deformation tests on manhole covers. Start the testing machine, begin to apply pressure to the sample, and record relevant data. During the application of pressure, it is necessary to pay attention to the changes in the sample to ensure safety.

[0003] However, during the load-bearing capacity and deformation testing of manhole covers, it is generally necessary to test both sides of the manhole cover, and it is usually done by manually flipping it over. Because the manhole cover is too heavy, manually flipping it over is not only time-consuming and labor-intensive, but may also cause personnel safety issues.

[0004] To address the aforementioned issues, this application proposes a robust structure for a manhole cover testing machine. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a stable structure for a manhole cover testing machine to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sturdy structure for a manhole cover testing machine includes a base, a connecting rod mounted on the top wall of the base, a first testing device mounted on the inner wall of the base, and an adjustment structure provided on the outer wall of the connecting rod.

[0008] The adjustment structure includes a balance plate mounted on the outer wall, a motor mounted on the outer wall of the balance plate, a rotating rod mounted on the output end of the motor, a placement plate rotatably connected to the inner wall of the balance plate, a manhole cover inserted into the inner wall of the placement plate, the side of the placement plate away from the balance plate being fixedly connected to the outer wall of the rotating rod, and the outer wall of the placement plate being close to the inner wall of the balance plate.

[0009] A first connecting block and a second connecting block are installed on the top wall of the placement plate. A left-hand and right-hand screw is threadedly connected to the inner wall of the first connecting block. The end of the left-hand and right-hand screw away from the first connecting block is rotatably connected to the inner wall of the second connecting block. An arc-shaped block is threadedly connected to the outer wall of the left-hand and right-hand screw. The outer wall of the arc-shaped block fits against the manhole cover, and the bottom wall of the arc-shaped block fits against the top wall of the placement plate. By setting the left-hand and right-hand screw, the manhole cover is fixed.

[0010] A sliding rod is installed on the inner wall of the first connecting block. The end of the sliding rod away from the first connecting block is fixedly connected to the inner wall of the second connecting block. The outer wall of the sliding rod is slidably connected to the inner wall of the arc-shaped block. By setting the sliding rod, the stability of the arc-shaped block when it moves is effectively improved.

[0011] There are two arc-shaped blocks, and the two arc-shaped blocks are symmetrically distributed with different thread grooves of the left and right helical screws. A spring is installed between the two arc-shaped blocks, and the left and right helical screws are located at the inner center of the spring. By setting the spring, the fixing effect of the manhole cover is further strengthened.

[0012] An electric telescopic rod is installed on the inner wall of the placement plate, and a fixing plate is installed on the telescopic end of the electric telescopic rod. The top wall of the fixing plate is in contact with the bottom wall of the manhole cover. By setting the electric telescopic rod, the manhole cover can be effectively limited.

[0013] A top plate is installed on the top wall of the connecting rod, and a second detection device is installed on the inner wall of the top plate. The output end of the second detection device is located above the manhole cover, and the output end of the first detection device is located below the manhole cover. By setting the second detection device, the detection effect of the manhole cover is further enhanced.

[0014] In summary, the technical effects and advantages of this utility model are as follows: The stable structure of this manhole cover testing machine, through the setting of an adjustment structure and an electric telescopic rod, allows the manhole cover to be inserted into the placement plate. The electric telescopic rod is then activated to move the fixing plate to the lower position of the manhole cover. The first testing device is then activated to test the strength of the manhole cover. Next, the left and right screw rods are turned to fix the arc-shaped block manhole cover to a certain extent. The motor is then activated to flip the manhole cover downwards, and the first testing device is activated again to test it. Alternatively, the first and second testing devices can be activated simultaneously to press the manhole cover on both sides for further strength testing. The adjustable structure effectively avoids manual flipping, improving work efficiency and effectively preventing safety issues for personnel. Attached Figure Description

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

[0016] Figure 2 This is a cross-sectional view of the internal structure of the balance plate of this utility model;

[0017] Figure 3 This is a schematic diagram of the arc-shaped block and connecting block structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the electric telescopic pole and fixing plate structure of this utility model.

[0019] In the picture:

[0020] 1. Base;

[0021] 2. Adjustment structure; 201. Balance plate; 202. Motor; 203. Rotating rod; 204. Placement plate; 205. First connecting block; 206. Second connecting block; 207. Left and right rotating lead screw; 208. Slide rod; 209. Arc block; 210. Spring;

[0022] 3. Connecting rod; 4. First detection device; 5. Top plate; 6. Second detection device; 7. Electric telescopic rod; 8. Fixing plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-3 A stable structure for a manhole cover testing machine includes a base 1, a connecting rod 3 installed on the top wall of the base 1, a first detection device 4 installed on the inner wall of the base 1, four connecting rods 3 located at the four corners of the base 1, an adjustment structure 2 provided on the outer wall of the connecting rods 3, the adjustment structure 2 including a balance plate 201 installed on the outer wall, a motor 202 installed on the outer wall of the balance plate 201, the output end of the motor 202 being rotatably connected to the inner wall of the balance plate 201, a rotating rod 203 installed on the output end of the motor 202, and starting the motor 202 driving the rotating rod 203 to rotate.

[0025] A placement plate 204 is rotatably connected to the inner wall of the balance plate 201. A manhole cover is inserted into the inner wall of the placement plate 204. The side of the placement plate 204 away from the balance plate 201 is fixedly connected to the outer wall of the rotating rod 203. The outer wall of the placement plate 204 is close to the inner wall of the balance plate 201. A through-hole for inserting the manhole cover is opened at the center of the placement plate 204. A through-hole for installing the placement plate 204 is also opened at the center of the balance plate 201. In addition, there is a certain distance between the outer wall of the placement plate 204 and the inner wall of the balance plate 201.

[0026] The start motor 202 drives the rotating rod 203 to rotate, the rotating rod 203 drives the placement plate 204 to rotate, and the placement plate 204 drives the manhole cover to flip.

[0027] Reference Figure 2-3 The top wall of the placement plate 204 is equipped with a first connecting block 205 and a second connecting block 206. The first connecting block 205 and the second connecting block 206 are the same size and material, and the first connecting block 205 and the second connecting block 206 are symmetrically distributed on the top of the placement plate 204 with the manhole cover as the center.

[0028] The inner wall of the first connecting block 205 is threaded with a left-hand and right-hand threaded rod 207. The end of the left-hand and right-hand threaded rod 207 away from the first connecting block 205 is rotatably connected to the inner wall of the second connecting block 206. The outer wall of the left-hand and right-hand threaded rod 207 is threaded with an arc-shaped block 209. There are two arc-shaped blocks 209, and the two arc-shaped blocks 209 are symmetrically distributed with different thread grooves of the left-hand and right-hand threaded rod 207. The outer wall of the arc-shaped block 209 fits against the manhole cover. The side of the arc-shaped block 209 closest to the manhole cover is designed according to the arc of the manhole cover to fit well with the manhole cover and enhance its fixing effect.

[0029] The bottom wall of the arc-shaped block 209 is in contact with the top wall of the placement plate 204. A slide rod 208 is installed on the inner wall of the first connecting block 205. The slide rod 208 and the left and right rotating screw 207 are on the same horizontal plane. The left and right rotating screw 207 and the slide rod 208 are symmetrically distributed on both sides of the arc-shaped block 209. The end of the slide rod 208 away from the first connecting block 205 is fixedly connected to the inner wall of the second connecting block 206. The outer wall of the slide rod 208 is slidably connected to the inner wall of the arc-shaped block 209. The slide rod 208 provides a certain degree of stability during the movement of the arc-shaped block 209.

[0030] A spring 210 is installed between the two arc-shaped blocks 209. The left and right rotating screw 207 is located at the center of the spring 210. There are two springs 210, which are symmetrically distributed on both sides of the arc-shaped block 209 with the arc-shaped block 209 as the center. One is close to the left and right rotating screw 207, and the other is close to the slide rod 208, which effectively enhances the fixing effect of the arc-shaped block 209 on the manhole cover.

[0031] Reference Figure 1 and Figure 4 An electric telescopic rod 7 is installed on the inner wall of the placement plate 204. A fixing plate 8 is installed on the telescopic end of the electric telescopic rod 7. The top wall of the fixing plate 8 is in contact with the bottom wall of the manhole cover. There are two electric telescopic rods 7, which are symmetrically distributed with the placement plate 204 as the center. When the electric telescopic rod 7 is activated, it drives the fixing plate 8 to move to the position below the manhole cover, which is used to limit the manhole cover.

[0032] A top plate 5 is installed on the top wall of the connecting rod 3, and a second detection device 6 is installed on the inner wall of the top plate 5. The output end of the second detection device 6 is located above the manhole cover, and the output end of the first detection device 4 is located below the manhole cover. The first detection device 4 and the second detection device 6 are on the same horizontal plane. The first detection device 4 and the second detection device 6 are activated to squeeze the manhole cover simultaneously, which effectively improves its detection effect.

[0033] Working principle:

[0034] Insert the manhole cover into the placement plate 204, activate the electric telescopic rod 7 to move the fixing plate 8 to the lower position of the manhole cover, and then activate the first detection device 4 to move the manhole cover upward to perform a strength test. When it is necessary to perform a test on the other side, turn the left and right screw rod 207 to move the two arc-shaped blocks 209 to the center position. During the movement, the spring 210 is contracted and pressed tightly against the manhole cover. Then, activate the motor 202 to drive the rotating rod 203 to rotate. The rotating rod 203 drives the placement plate 204 and the manhole cover to flip downward, so that the manhole cover and the balance plate 201 are on the same horizontal plane. Then, activate the first detection device 4 to perform a test. Alternatively, the first detection device 4 and the second detection device 6 can be activated simultaneously to press the manhole cover on both sides to further test its strength. The adjustment structure 2 effectively avoids the need for manual flipping, which not only improves work efficiency but also effectively avoids safety issues for personnel.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stable structure for a manhole cover testing machine, comprising a base (1), characterized in that, A connecting rod (3) is installed on the top wall of the base (1), a first detection device (4) is installed on the inner wall of the base (1), and an adjustment structure (2) is provided on the outer wall of the connecting rod (3). The adjustment structure (2) includes a balance plate (201) installed on the outer wall. A motor (202) is installed on the outer wall of the balance plate (201). A rotating rod (203) is installed at the output end of the motor (202). A placement plate (204) is rotatably connected to the inner wall of the balance plate (201). A manhole cover is inserted into the inner wall of the placement plate (204). The side of the placement plate (204) away from the balance plate (201) is fixedly connected to the outer wall of the rotating rod (203). The outer wall of the placement plate (204) is close to the inner wall of the balance plate (201).

2. The stable structure of the manhole cover testing machine according to claim 1, characterized in that, The top wall of the placement plate (204) is equipped with a first connecting block (205) and a second connecting block (206). The inner wall of the first connecting block (205) is threaded with a left-hand and right-hand screw rod (207). The end of the left-hand and right-hand screw rod (207) away from the first connecting block (205) is rotatably connected to the inner wall of the second connecting block (206). The outer wall of the left-hand and right-hand screw rod (207) is threaded with an arc-shaped block (209). The outer wall of the arc-shaped block (209) is in contact with the manhole cover, and the bottom wall of the arc-shaped block (209) is in contact with the top wall of the placement plate (204).

3. The stable structure of the manhole cover testing machine according to claim 2, characterized in that, A slide rod (208) is installed on the inner wall of the first connecting block (205). The end of the slide rod (208) away from the first connecting block (205) is fixedly connected to the inner wall of the second connecting block (206). The outer wall of the slide rod (208) is slidably connected to the inner wall of the arc-shaped block (209).

4. The stable structure of the manhole cover testing machine according to claim 2, characterized in that, There are two arc-shaped blocks (209), and the two arc-shaped blocks (209) are symmetrically distributed with different thread grooves of the left and right helical screws (207). A spring (210) is installed between the two arc-shaped blocks (209), and the left and right helical screws (207) are located at the inner center of the spring (210).

5. The stable structure of the manhole cover testing machine according to claim 1, characterized in that, An electric telescopic rod (7) is installed on the inner wall of the placement plate (204), and a fixing plate (8) is installed on the telescopic end of the electric telescopic rod (7). The top wall of the fixing plate (8) is in contact with the bottom wall of the manhole cover.

6. The stable structure of the manhole cover testing machine according to claim 1, characterized in that, The top wall of the connecting rod (3) is fitted with a top plate (5), and the inner wall of the top plate (5) is fitted with a second detection device (6). The output end of the second detection device (6) is located above the manhole cover, and the output end of the first detection device (4) is located below the manhole cover.

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