Well lid bearing capacity testing device

Abstract

The utility model relates to the technical field of well lid testing, and particularly discloses a well lid bearing capacity testing device which comprises a testing base, and a testing groove used for storing a well lid body is formed in the testing base. A back plate is arranged on one side of the testing base, a crescent plate is installed on the testing base, and after the well lid body enters the testing groove, the crescent plate and the back plate are located on the two sides of the well lid body respectively; a pressing plate is arranged on the side, away from the back plate, of the testing base and connected with a pressure applying mechanism. The two ends of the test base are connected with the feeding box body and the appearance detection box body respectively. In the detection process, the manhole cover body is adjusted to be in the vertical state, the manhole cover body in the vertical state moves along the feeding box body, the test base and the appearance detection box body, labor is saved in the vertical state moving process, the work that the manhole cover body enters the test base and is pushed out of the test base can be completed without being matched with hoisting equipment, and the detection efficiency is improved. The operation difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of well lid test, specifically relates to a well lid bearing capacity testing device. BACKGROUND

[0002] Well lid is used for covering the deep well of road or home, prevents people or object from falling.

[0003] In the process of bearing capacity test of well lid, pressure is mostly applied to the well lid to test whether the bearing capacity of the well lid can meet the demand.

[0004] However, in the process of well lid bearing capacity test, the well lid is mostly placed horizontally on the detection table, and pressure is applied to the upper end surface of the well lid.

[0005] In order to ensure the strength of the well lid, its weight is mostly about 10-300 kg. In order to avoid risks during use of the lifting device, the position of the lifting device needs to be spaced apart from the detection table by about half a meter, which results in the need for more steps such as moving the lifting device during loading and unloading of the well lid, and the time required during the process is long. Therefore, the present application provides a well lid bearing capacity testing device.

[0006] The utility model aims at providing a well lid bearing capacity testing device to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme, a well lid bearing capacity testing device, including test base, be provided with the test groove for depositing well lid body in test base,

[0008] One side of the test base is provided with a back plate, and a crescent plate is installed on the test base.

[0009] The side of the test base away from the back plate is provided with a pressing plate, and the pressing plate is connected with the pressure applying mechanism.

[0010] Two ends of the test base are connected with a feeding box and a shape detection box respectively, a feeding groove in the feeding box has a height higher than or equal to the height of the highest position of the test groove, and a discharging groove in the shape detection box has a height lower than or equal to the height of the lowest position in the test groove.

[0011] Preferably, the back plate is provided with a back support frame on the side away from the test base, and a load sharing support is inserted between the back support frame and the back plate.

[0012] Preferably, two end faces of the load sharing support are respectively abutted against the back plate and the back support frame, and the load sharing support comprises two support rings which are fixed by a plurality of support rods.

[0013] Preferably, the output end of the pressure applying mechanism is provided with a pressure applying piece, and the pressure applying piece comprises a sleeve which is sleeved on the output end of the electric telescopic rod.

[0014] Preferably, a plurality of trapezoidal plates are arranged on the pressure applying piece and are circumferentially distributed around the center line of the sleeve, and the trapezoidal plates are fixed to the sleeve by welding.

[0015] Preferably, the bottom of the pressing plate is provided with a sliding block which is slidably connected with a guide rail, and the guide rail is installed on the bottom plate and is parallel to the advancing direction of the pressure applying mechanism.

[0016] Preferably, the shape detection box is provided with a transparent plate.

[0017] Preferably, the test base is installed on a bottom plate, and a distance detection unit is installed on the bottom plate and is used for measuring the distance between the pressing plate and the distance detection unit.

[0018] Preferably, a discharging unit is arranged at the test groove, and the discharging unit comprises a discharging plate which is connected with a driving device for driving the rotation of the discharging plate, and the driving device allows the discharging plate to have at least two states including a test state and a discharging state.

[0019] Preferably, when the discharging plate is in the test state, the arc surface on the discharging plate is abutted against the side wall of the manhole cover body, and when the discharging plate is in the discharging state, the arc surface on the discharging plate is tangent to the bottom surface of the discharging groove in the shape detection box.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] The manhole cover body is adjusted to a vertical state in the detection process, and the manhole cover body in the vertical state is moved along the feeding box body, the test base and the appearance detection box body, and the manhole cover body is pushed into the test base and pushed out from the test base in the moving process in the vertical state, so that the labor is saved, and the manhole cover body can be pushed into the feeding box body and moved out from the appearance detection box body, and the work can be performed in the process of applying pressure by the pressure applying mechanism, so that the work in the use process of the device is reasonably arranged, the time consumed in the whole working process of the test device is reduced, the test efficiency is improved, and the feeding box body, the appearance detection box body and the test base are apart from each other, the lifting device used at the position does not affect the work content on the test base. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of a manhole cover bearing capacity test device in the utility model.

[0023] Figure 2 It is a structure schematic view of a manhole cover bearing capacity test device in the utility model.

[0024] Figure 3 It is a structure schematic view of a manhole cover bearing capacity test device in the utility model.

[0025] Figure 4 It is a structure schematic view of a test base and a feeding unit in the utility model.

[0026] In the figure: 1, manhole cover body; 2, test base; 201, test groove; 3, back plate; 4, back support frame; 5, share support; 6, pressing plate; 7, pressure applying mechanism; 8, pressure applying piece; 9, guide rail; 10, feeding box body; 11, appearance detection box body; 12, transparent plate; 13, distance detection unit; 14, feeding unit. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] REFERENCE Figures 1-4 A manhole cover bearing capacity test device, comprising a test base 2, the test base 2 is provided with a test groove 201 for storing a manhole cover body 1, which can be referred to Figure 3 、 Figure 4, the well lid body 1 is circular as a whole, and the test groove 201 is provided with a corresponding arc-shaped structure, and in the process of testing the bearing capacity of the well lid body 1, the well lid body 1 is inside the test groove 201.

[0029] In order to test the bearing capacity of the well lid body 1, one side of the well lid body 1 needs to be in a fixed state to avoid the situation that the supporting structure at the back of the well lid body 1 cannot support the pressure and tilts or bends during the process of the well lid body 1 being subjected to pressure. Therefore, a back plate 3 is arranged on one side of the test base 2. In order to enhance the ability of the back plate 3 to withstand horizontal pressure, a back supporting frame 4 is arranged on the side of the back plate 3 away from the test base 2. A load sharing bracket 5 is inserted between the back plate 3 and the back supporting frame 4. The two end faces of the load sharing bracket 5 abut against the back plate 3 and the back supporting frame 4 respectively. The load sharing bracket 5 comprises two supporting rings which are fixed by a plurality of supporting rods.

[0030] The well lid body 1 is subjected to pressure, i.e. bearing capacity test, in the test groove 201 (the well lid body 1 is usually placed horizontally, and when the well lid body 1 bears an object, the gravity exerted by the object is perpendicular to the well lid body 1. In the test groove 201, the well lid body 1 is subjected to pressure which is also perpendicular to the well lid body 1. The pressure from the side simulates the bearing capacity test). In order to avoid the well lid body 1 from falling out of the test groove 201 after entering the test groove 201, a crescent plate is installed on the test base 2. After the well lid body 1 enters the test groove 201, the crescent plate and the back plate 3 are located on the two sides of the well lid body 1 respectively. During the test of the well lid body 1, the crescent plate at the bottom of the well lid body 1 blocks the bottom of the well lid body 1 to prevent it from falling out of the test groove 201, and the large area above the crescent plate is the area where pressure is applied.

[0031] In order to apply pressure to the well lid body 1, a pressure plate 6 is arranged on the side of the test base 2 away from the back plate 3. The pressure plate 6 is connected to a pressure applying mechanism 7. The pressure applying mechanism 7 adopts an electric telescopic rod which is driven by electricity and has a precise adjustable moving distance. The pressure applied to the well lid body 1 can be adjusted by adjusting the moving distance. For details, please refer to Figure 4 The outer surface of the well lid body 1 is provided with corresponding lines. In order to ensure that the well lid body 1 is uniformly stressed when pressure is applied, the pressure plate 6 needs to cover most of the area of the well lid body 1 except the area corresponding to the crescent plate, i.e. the interval between the pressure plate 6 and the edge of the well lid body 1 is small.

[0032] In order to enable the pressure exerting mechanism 7 to distribute pressure to each position of the pressing plate 6, a pressure applying piece 8 is installed at the output end of the pressure exerting mechanism 7, and the pressure applying piece 8 comprises a sleeve which is sleeved on the output end of the electric telescopic rod, and a plurality of trapezoidal plates which are circumferentially distributed around the center line of the sleeve are installed on the pressure applying piece 8 and are fixed to the sleeve by welding. The pressure applied by the pressure exerting mechanism 7 is distributed to the pressing plate 6 through the plurality of trapezoidal plates and the sleeve, so that the pressure received by each part of the manhole cover body 1 is the same, which is the bearing capacity of the manhole cover body 1 as a whole.

[0033] It should be noted that when the pressing plate 6 is pressed on the manhole cover body 1, there is a gap between the bottom of the pressing plate 6 and the crescent plate, and the upper part of the pressing plate 6 is connected with the pressure exerting mechanism 7 and moves together. In order to ensure the stable movement of the pressing plate 6, a sliding block is installed at the bottom of the pressing plate 6, the sliding block is slidably connected with a guide rail 9, and the guide rail 9 is installed on the bottom plate and is parallel to the advancing direction of the pressure exerting mechanism 7.

[0034] In order to facilitate the feeding and discharging of the manhole cover body 1, the manhole cover body 1 is measured vertically and is vertically entered into the test groove 201. Compared with pushing the horizontally moved manhole cover body 1, pushing the manhole cover body 1 in the vertical state is more labor-saving in the moving process. Therefore, the two ends of the test base 2 are respectively connected with the feeding box body 10 and the shape detection box body 11. The height of the feeding groove in the feeding box body 10 is higher than or equal to the height of the highest part of the test groove 201, and the height of the discharging groove in the shape detection box body 11 is lower than or equal to the height of the lowest part of the test groove 201. In this way, the manhole cover body 1 moves in a rolling manner after being entered into the feeding box body 10, and the whole moving process is more labor-saving.

[0035] Specifically, the shape detection box body 11 is provided with a transparent plate 12. When the manhole cover body 1 is entered into the inside of the shape detection box body 11, the area where the transparent plate 12 is located is larger than the size of the area where the manhole cover body 1 is inserted into the inside of the shape detection box body 11, and the remaining part is not blocked by the shape detection box body 11 and can be clearly observed. The part received into the shape detection box body 11 can be observed through the transparent plate 12. In this way, whether there is a crack or a curved area on the outer surface of the transparent plate 12 can be observed, so that whether the bearing capacity of the manhole cover body 1 meets the demand can be determined from the shape.

[0036] More specifically, the test base 2 is arranged on a bottom plate, and a distance detection unit 13 is installed on the bottom plate. The distance detection unit 13 is used to measure the distance between the pressing plate 6 and the distance detection unit 13, so as to determine the moving distance of the pressing plate 6 and further determine the pressure applied by the pressing plate 6.

[0037] Because the test groove 201 is arranged as an arc structure identical with the bottom of the well lid body 1, after the well lid body 1 enters into the test groove 201, when the well lid body 1 is moved during unloading, the whole well lid body 1 needs to be moved upward by a distance, and the process of moving upward is relatively laborious, and during the process of moving upward, the well lid body 1 is prone to be separated from the test groove 201, therefore, the unloading unit 14 is arranged at the test groove 201, the unloading unit 14 comprises an unloading plate, the unloading plate is connected with a driving device for driving the unloading plate to rotate, the driving device enables the unloading plate to have at least two states including a test state and an unloading state, in the test state, the arc surface on the unloading plate is attached to the side wall of the well lid body 1, in the unloading state, the arc surface on the unloading plate is tangent to the bottom surface of the unloading groove in the appearance detection box 11, at this time, the well lid body 1 enters into the appearance detection box 11 more easily.

[0038] Working principle:

[0039] During the detection process, the well lid body 1 is adjusted to a vertical state, the well lid body 1 in the vertical state is moved along the feeding box 10, the test base 2 and the appearance detection box 11, during the moving process of the well lid body 1 in the vertical state, it is relatively labor-saving, and after the well lid body 1 enters into the test groove 201 in the test base 2, the two sides of the well lid body 1 are respectively hindered by the back plate 3 and the crescent plate and are in a stable state, the pressure applying mechanism 7 pushes the pressing plate 6 to move, and a set pressure value is applied to the well lid body 1, after the pressure is applied, the pressure applying mechanism 7 removes the pressing plate 6, so that the well lid body 1 enters into the appearance detection box 11, and the appearance is detected in the appearance detection box 11, so that whether the well lid body 1 remains in a normal state after being subjected to a set pressure (bearing capacity) can be checked, so as to check whether the bearing capacity of the well lid body 1 meets the requirements.

[0040] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A manhole cover bearing capacity testing device, characterized in that, Includes a test base (2), and the test base (2) is provided with a test slot (201) for storing the manhole cover body (1); A back plate (3) is provided on one side of the test base (2), and a crescent plate is installed on the test base (2). After the manhole cover body (1) enters the test groove (201), the crescent plate and the back plate (3) are located on both sides of the manhole cover body (1). The test base (2) is provided with a pressure plate (6) on the side away from the back plate (3), and the pressure plate (6) is connected to the pressure application mechanism (7); The two ends of the test base (2) are respectively connected to the feeding box (10) and the shape detection box (11). The height of the feeding groove in the feeding box (10) is higher than or equal to the height of the highest point of the test groove (201), and the height of the unloading groove in the shape detection box (11) is lower than or equal to the height of the lowest point of the test groove (201).

2. The manhole cover bearing capacity testing device according to claim 1, characterized in that, A back support frame (4) is provided on the side of the back plate (3) away from the test base (2), and a distribution bracket (5) is inserted between the back support frame (4) and the back plate (3).

3. The manhole cover bearing capacity testing device according to claim 2, characterized in that, The two end faces of the sharing bracket (5) abut against the back plate (3) and the back support frame (4) respectively. The sharing bracket (5) includes two support rings, which are fixed together by welding with several support rods.

4. The manhole cover bearing capacity testing device according to claim 1, characterized in that, The pressure application mechanism (7) has a pressure-applying component (8) installed at its output end. The pressure-applying component (8) includes a sleeve that is fitted onto the output end of the electric telescopic rod.

5. The manhole cover bearing capacity testing device according to claim 4, characterized in that, The pressure member (8) is equipped with several trapezoidal plates that are circumferentially distributed around the center line of the sleeve. The trapezoidal plates are fixed to the sleeve by welding.

6. The manhole cover bearing capacity testing device according to claim 1, characterized in that, The bottom of the pressure plate (6) is equipped with a slider, which is slidably connected to the guide rail (9). The guide rail (9) is mounted on the base plate and is parallel to the travel direction of the pressure application mechanism (7).

7. The manhole cover bearing capacity testing device according to claim 1, characterized in that, A transparent plate (12) is installed inside the shape detection box (11).

8. The manhole cover bearing capacity testing device according to claim 1, characterized in that, The test base (2) is set on the base plate, and a distance detection unit (13) is installed on the base plate. The distance detection unit (13) is used to measure the distance between the pressure plate (6) and the distance detection unit (13).

9. A manhole cover bearing capacity testing device according to claim 1, characterized in that, The test slot (201) is provided with a feeding unit (14), which includes a feeding plate. The feeding plate is connected to a drive device for rotating it. The drive device allows the feeding plate to have at least two states, including a test state and a feeding state.

10. A manhole cover bearing capacity testing device according to claim 9, characterized in that, When the feeding plate is in the test state, the arc-shaped surface on the feeding plate is in contact with the side wall of the manhole cover body (1). When the feeding plate is in the feeding state, the arc-shaped surface on the feeding plate is tangent to the bottom surface of the feeding groove in the shape detection box (11).

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