Well lid support for measurement

Abstract

The utility model provides a well lid support for measurement, which comprises first support blocks and second support blocks, the first support blocks and the second support blocks are L-shaped, and the two first support blocks and the two second support blocks are mutually enclosed to form a rectangular frame; the first supporting block is provided with a first clamping groove and a first supporting rod, and the second supporting block is provided with a second clamping groove and a second supporting rod. One end of the first supporting rod is connected with the first supporting block, and the other end of the first supporting rod is installed in the second clamping groove. The first supporting block and the second supporting block which can slide mutually are used to define the rectangular frame, and four edges of the rectangular well lid can be supported during residual deformation detection, so that the deformation condition of the well lid when the well lid is rolled by a vehicle under the actual condition is simulated; the rectangular frame defined by the first supporting blocks and the second supporting blocks can be correspondingly adjusted according to the size of the rectangular well lid, the detection requirements of the rectangular well lids of different sizes are met, and the detection efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of inspection well cover residual deformation detection, and particularly to a manhole cover support for measurement. Background Art

[0002] Manhole covers are common installations on municipal roads. They are mainly used to cover the upper part of inspection wells to prevent people and vehicles from falling into the wells. When in use, manhole covers need to withstand the rolling of vehicles. Therefore, the bearing capacity of manhole covers is an important indicator, which includes test load and residual deformation. Residual deformation characterizes the ability to resist deformation caused by external loads and is of great significance for engineering applications. Existing detection equipment mainly applies pressure to the upper part of the manhole cover through hydraulic rods to detect the deformation value of the manhole cover. For some cast iron manhole covers, supports are usually configured and can be directly detected. In addition, there are quite a number of composite material manhole covers and steel fiber reinforced concrete manhole covers that generally do not have supports. When detecting such manhole covers, corresponding supports need to be made during the bearing capacity detection before detection can be carried out. However, most of these manhole covers are rectangular with different specifications, and a corresponding support needs to be made for each specification of detection, which will increase the detection cost and reduce the efficiency. Therefore, a manhole cover support for measurement is needed, which can adjust the size of the support according to the size of the rectangular manhole cover to meet the detection needs of non - supported rectangular manhole covers of different sizes and improve the detection efficiency. Summary of the Utility Model

[0003] To solve the above problems, this application proposes a manhole cover support for measurement, which can adjust the size of the support according to the size of the rectangular manhole cover to meet the detection needs of non - supported rectangular manhole covers of different sizes and improve the detection efficiency.

[0004] This application is achieved through the following technical solutions:

[0005] This application proposes a manhole cover support for measurement, including: a first support block and a second support block. The first support block and the second support block are in an L - shape, and the two first support blocks and the two second support blocks enclose a rectangular frame; the first support block is provided with a first card slot and a first support rod, and the second support block is provided with a second card slot and a second support rod; one end of the first support rod is connected to the first support block, and the other end of the first support rod is installed in the second card slot. One end of the second support rod is connected to the second support block, and the other end of the second support rod is installed in the first card slot.

[0006] Further, threaded holes are provided on the sides of the first card slot and the second card slot, and locking nuts are provided in the threaded holes.

[0007] Further, baffles are provided on the upper parts of the first support block and the second support block.

[0008] Furthermore, support blocks are spaced apart at the lower parts of the first support rod and the second support rod, and the upper end surfaces of the support blocks are in close contact with the lower end surfaces of the first support rod and the second support rod.

[0009] Furthermore, blind holes are provided at intervals at the lower parts of the first support rod and the second support rod, and magnets are pre-embedded in the blind holes. A circular protrusion is provided at the upper part of the support block. When the support block is installed at the lower parts of the first support rod and the second support rod, the circular protrusion is inserted into the blind hole, and the circular protrusion is adsorbed and connected to the magnet.

[0010] Furthermore, upper end surfaces of the first support block, the second support block, the first support rod, and the second support rod are flush.

[0011] The beneficial effects of the present application are as follows: by using a first support block and a second support block that can slide against each other to form a rectangular frame, the four sides of the rectangular manhole cover can be supported during residual deformation detection, thereby simulating the deformation of the manhole cover when the manhole cover is crushed by a vehicle in actual conditions. The rectangular frame formed by the first support block and the second support block can be adjusted accordingly according to the size of the rectangular manhole cover, thereby meeting the detection requirements of rectangular manhole covers of different sizes and improving detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the first support block of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the second support block of the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the support block of the utility model;

[0016] In the figure: 1-first support block, 2-first slot, 3-first support rod, 4-second support block, 5-second slot, 6-second support rod, 7-locking nut, 8-baffle, 9-support block, 10-circular protrusion. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0019] In addition, the descriptions involving "first", "second", etc. in the present application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the said features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0020] As Figures 1 to 4 shown, an embodiment of the present utility model provides a manhole cover support for measurement, including: a first support block 1, a second support block 4. The first support block 1 and the second support block 4 are in an L shape, and two first support blocks 1 and two second support blocks 4 enclose a rectangular frame; a first card slot 2 and a first support rod 3 are provided on the first support block 1, and a second card slot 5 and a second support rod 6 are provided on the second support block 4; one end of the first support rod 3 is connected to the first support block 1, the other end of the first support rod 3 is installed in the second card slot 5, one end of the second support rod 6 is connected to the second support block 4, and the other end of the second support rod 6 is installed in the first card slot 2.

[0021] For some composite material rectangular manhole covers and steel fiber reinforced concrete rectangular manhole covers, they are usually sent for inspection without a support. When it is necessary to detect the residual deformation, place the manhole cover support on the testing machine table. After loosening the locking nut 7, the relative positions of the first support block 1 and the second support block 4 can be adjusted. The support rod can slide in the card slot, thereby shrinking or expanding the rectangular frame. The rectangular frame is adjusted so that the rectangular manhole cover can be placed on the upper part, and it is appropriate to leave a gap of 1 mm to 5 mm between the side of the rectangular manhole cover and the baffle 8. After the adjustment is completed, tighten the locking nut 7 to prevent the support rod from sliding in the card slot. Then, place the support block 9 under the lower parts of the first support rod 3 and the second support rod 6, and support the first support rod 3 and the second support rod 6 through the support block 9 to ensure that the first support rod 3 and the second support rod 6 can provide sufficient supporting force to support the manhole cover during the test. After applying pressure to the manhole cover through the hydraulic rod on the testing machine table, the situation of the manhole cover being crushed can be simulated, and then the deformation amount of the manhole cover is detected by an instrument to complete the detection of the residual deformation. The first support block 1, the second support block 4, the first support rod 3, and the second support rod 6 enclose a rectangle, and the size of the rectangle can be adjusted according to the interval between the first support block 1 and the second support block 4 to meet the detection requirements of manhole covers of different sizes and improve the detection efficiency.

[0022] Specifically, as Figure 2 、 Figure 3 shown, threaded holes are provided on the sides of both the first card slot 2 and the second card slot 5, and locking nuts 7 are provided in the threaded holes. After tightening the locking nuts 7, the ends of the locking nuts 7 extend into the first card slot 2 or the second card slot 5, thereby clamping the first support rod 3 and the second support rod 6 to ensure the stability of the entire support.

[0023] In a preferred embodiment, baffles 8 are provided on the upper parts of both the first support block 1 and the second support block 4. When the rectangular manhole cover is installed on the upper parts of the first support block 1 and the second support block 4, the baffles 8 can support the side of the rectangular manhole cover to prevent the rectangular manhole cover from sliding horizontally during the test.

[0024] In a preferred embodiment, as Figure 1 shown, support blocks 9 are arranged at intervals on the lower parts of both the first support rod 3 and the second support rod 6. The upper end surfaces of the support blocks 9 are closely attached to the lower end surfaces of the first support rod 3 and the second support rod 6. The lower parts of the first support rod 3 and the second support rod 6 are suspended and are prone to bending deformation when pressed during the test. The support blocks 9 support the lower parts of the first support rod 3 and the second support rod 6, thereby improving the bending resistance of the first support rod 3 and the second support rod 6 and reducing the deformation amount of the first support rod 3 and the second support rod 6 during the test.

[0025] Specifically, as Figure 4As shown, blind holes are provided at intervals in the lower parts of the first support rod 3 and the second support rod 6, and magnets are embedded in the blind holes. A circular protrusion 10 is provided on the upper part of the support block 9. When the support block 9 is installed on the lower parts of the first support rod 3 and the second support rod 6, the circular protrusion 10 is inserted into the blind hole, and the circular protrusion 10 is adsorbed and connected to the magnet, so that the support block 9 can be conveniently installed on the lower parts of the first support rod 3 and the second support rod 6. The blind hole has a certain limiting effect and is convenient for positioning the support block 9.

[0026] In a specific embodiment, the upper end faces of the first support block 1, the second support block 4, the first support rod 3, and the second support rod 6 are flush, so as to provide good support for the manhole cover and thus simulate the deformation condition of the manhole cover in the formal environment.

[0027] Certainly, the present application can also have many other implementation manners. Based on this implementation manner, other implementation manners obtained by those of ordinary skill in the art without any creative work belong to the scope protected by the present application.

Claims

1. A manhole cover support for measurement, characterized in that: include: A first support block (1) and a second support block (4), wherein the first support block (1) and the second support block (4) are L-shaped, and the two first support blocks (1) and the two second support blocks (4) mutually form a rectangular frame; the first support block (1) is provided with a first clamping groove (2) and a first support rod (3), and the second support block (4) is provided with a second clamping groove (5) and a second support rod (6); one end of the first support rod (3) is connected to the first support block (1), and the other end of the first support rod (3) is installed in the second clamping groove (5); one end of the second support rod (6) is connected to the second support block (4), and the other end of the second support rod (6) is installed in the first clamping groove (2).

2. A manhole cover support for measurement according to claim 1, characterized in that: The first clamping slot (2) and the second clamping slot (5) are both provided with threaded holes on their sides, and locking nuts (7) are provided in the threaded holes.

3. A manhole cover support for measurement according to claim 1, characterized in that: The first support block (1) and the second support block (4) are both provided with baffles (8) on their upper parts.

4. A manhole cover support for measurement according to claim 1, characterized in that: Support blocks (9) are arranged at intervals at the lower parts of the first support rod (3) and the second support rod (6), and the upper end surfaces of the support blocks (9) are closely attached to the lower end surfaces of the first support rod (3) and the second support rod (6).

5. A manhole cover support for measurement according to claim 4, characterized in that: Blind holes are provided at intervals at the lower parts of the first support rod (3) and the second support rod (6), and magnets are pre-buried in the blind holes. A circular protrusion (10) is provided at the upper part of the support block (9). When the support block (9) is installed at the lower parts of the first support rod (3) and the second support rod (6), the circular protrusion (10) is inserted into the blind hole, and the circular protrusion (10) is adsorbed and connected with the magnet.

6. A manhole cover support for measurement according to claim 1, characterized in that: The upper end surfaces of the first support block (1), the second support block (4), the first support rod (3) and the second support rod (6) are flush.

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