Sandpit cover for impact resistance test of safety net

Abstract

The utility model provides a sandpit cover for impact resistance test of a safety net, which comprises an unfolded framework and a cloth cover, and the cloth cover is mounted on the unfolded framework to form the sandpit cover; the unfolding framework is installed on the ground through fixed sliding rails, the fixed sliding rails are arranged on the two sides of a sandpit, and the size of the unfolding framework can be adjusted in the transverse direction and the longitudinal direction. And the opened sandpit cover can shield the sandpit. According to the utility model, the fixed sliding rails are fixed on the ground, so that the windproof purpose can be realized, and unified management of the unfolded framework can be realized through the fixed sliding rails; and the covering area of the cloth cover can be adjusted according to the sandpit.

Description

Technical Field

[0001] The utility model belongs to the field of sand pit covers, in particular to a sand pit cover for testing the impact resistance performance of a safety net. Background Art

[0002] The safety flat net or dense safety vertical net used in construction sites or other places has an impact resistance test in the retest. The test process is to lift the impact ball to the height specified in the standard, release the impact ball to the safety net, observe the test phenomenon and the degree of damage to the safety net. There is a sand pit directly below the release area, which plays a role in buffering and protecting the impact ball when the impact ball destroys the safety net and falls to the ground. During the actual maintenance of the instrument and equipment, there is a problem that the sand pit has no cover or cover, which leads to long-term corrosion of the impact ball in rainy, snowy or wet weather, and the sand pit is soaked by rainwater, resulting in a lot of debris in the sand pit, and the sanitary conditions are not guaranteed, which puts higher requirements on the maintenance of the equipment by personnel;

[0003] And the size of the bunker needs to be adjusted according to the size of the impact ball; so the problem of how to adapt to impact balls of different sizes needs to be solved;

[0004] Finally, conventional shelters can easily be blown away or overturned in windy weather, so this is also a problem that needs to be solved. Utility Model Content

[0005] In view of this, the utility model aims to provide a sand pit cover for testing the impact resistance performance of a safety net to solve the above problems.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A bunker cover for a safety net impact resistance test comprises an unfolded frame and a cloth cover, wherein the cloth cover is mounted on the unfolded frame to form a bunker cover;

[0008] The unfolding frame is mounted to the ground via fixed slide rails, and the fixed slide rails are arranged on both sides of the sand pit;

[0009] The unfolded frame can adjust the size in the horizontal and vertical directions;

[0010] The open bunker cover can shield the bunker.

[0011] Furthermore, the unfolded frame includes a plurality of round arch frames and a plurality of mounting seats; one round arch frame corresponds to two mounting seats;

[0012] The mounting seat is mounted on the fixed slide rail; and the two ends of the round arch frame are respectively plugged into the mounting seat.

[0013] Furthermore, the round arch frame includes a first frame, a second frame, a third frame and a fourth frame;

[0014] The first frame and the second frame are hinged end to end, the third frame and the fourth frame are hinged end to end, and the second frame can be plugged into the third frame to form a round arch frame as a whole;

[0015] The ends of the No. 1 frame and the No. 4 frame are provided with a plurality of adjustment holes A; the mounting seat is provided with a plurality of adjustment holes B corresponding to the adjustment holes A;

[0016] The longitudinal height of the round arch frame can be adjusted by passing the fixing pin through the adjustment hole A and the adjustment hole B;

[0017] The end of the second frame is provided with an adjustment C hole, and the end of the third frame is formed into a plug-in tube shape and is provided with a plurality of adjustment D holes corresponding to the adjustment C holes;

[0018] The horizontal length of the round arch frame can be adjusted by passing the fixing pin through the adjusting hole C and the adjusting hole D.

[0019] Furthermore, the first frame and the second frame are connected by a hinge shaft; and a first limit plate and a second limit plate are provided at the hinge;

[0020] The fixing pin passes through the No. 1 limiting plate, the No. 1 frame, the No. 2 frame and the No. 2 limiting plate, so that the No. 1 frame and the No. 2 frame can be fixed.

[0021] Furthermore, the mounting seat comprises a socket and a base, and the socket and the base are hingedly connected.

[0022] The base is in a T-shaped structure, and the fixed slide rail is provided with a T-shaped slideway corresponding to the base. The base and the fixed slide rail are slidably connected to achieve cooperation between the mounting seat and the fixed slide rail.

[0023] Furthermore, the bottom of the socket is provided with a plurality of limit holes A, and the base is provided with corresponding limit holes B.

[0024] The limit pin is inserted into the limit hole A and the limit hole B to achieve relative fixation between the socket and the base.

[0025] Furthermore, the cooperation between the limit hole A and the limit hole B can realize the fixation of the socket at the 90° or 180° position; the circular arch frame is provided with a plurality of connecting buckles, and the connecting buckles are used to bind with the cloth cover.

[0026] Compared with the prior art, the sand pit cover for the safety net impact resistance test described in the utility model has the following advantages:

[0027] (1) The sand pit cover for the impact resistance performance test of the safety net of the utility model is fixed to the ground by a fixed slide rail, which can achieve the purpose of wind protection, and the unified management of the unfolded frame can be achieved by setting the fixed slide rail; it is more convenient.

[0028] (2) The sand pit cover for the impact resistance performance test of the safety net of the utility model can also adjust the distance between the unfolded frames by setting a fixed slide rail, and the lateral size of the unfolded frames can also be adjusted, thereby changing the shielding area of ​​the sand pit cover.

[0029] (4) The sand pit cover for the impact resistance performance test of the safety net of the utility model can be disassembled after the frame, the mounting seat and the fixed slide rail are unfolded, and the unfolded frame can also be folded to reduce the floor space and make it easier to store and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0031] Figure 1 A schematic diagram of a sand pit cover for testing the impact resistance of a safety net according to an embodiment of the utility model;

[0032] Figure 2 It is a schematic diagram of a bunker cover hiding a cloth cover for a safety net impact resistance performance test according to an embodiment of the utility model;

[0033] Figure 3 This is a schematic diagram of a circular arch frame according to an embodiment of the utility model;

[0034] Figure 4 It is a schematic diagram of fixing the first frame and the second frame by the first limiting plate and the second limiting plate according to the embodiment of the utility model;

[0035] Figure 5 This is a schematic diagram of the mounting base described in an embodiment of the utility model.

[0036] Description of reference numerals:

[0037] 1. Unfold the frame; 11. Arch frame; 111. Frame No. 1; 112. Frame No. 2; 113. Frame No. 3; 114. Frame No. 4; 12. Mounting seat; 121. Socket; 122. Base; 13. Connecting buckle; 14. Limit plate No. 1; 15. Limit plate No. 2; 2. Cloth cover; 3. Fix the slide rail. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0039] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0041] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0042] Sand pit cover for impact resistance test of safety net, such as Figure 1-Figure 5 As shown, it comprises an unfolding frame 1 and a cloth cover 2, wherein the cloth cover 2 is mounted on the unfolding frame 1 to form a bunker cover;

[0043] The unfolding frame 1 is mounted to the ground via fixed slide rails 3, and the fixed slide rails 3 are arranged on both sides of the sand pit;

[0044] The unfolded frame 1 can adjust the size in the horizontal and vertical directions;

[0045] The open bunker cover can shield the bunker.

[0046] Preferably, the unfolding frame 1 includes a plurality of round arch frames 11 and a plurality of mounting seats 12; one round arch frame 11 corresponds to two mounting seats 12;

[0047] The mounting seat 12 is mounted on the fixed slide rail 3 ; and both ends of the circular arch frame 11 are respectively inserted into the mounting seat 12 .

[0048] Preferably, the round arch frame 11 includes a first frame 111, a second frame 112, a third frame 113 and a fourth frame 114;

[0049] The first frame 111 and the second frame 112 are hinged end to end, the third frame 113 and the fourth frame 114 are hinged end to end, and the second frame 112 can be plugged into the third frame 113 to form a circular arch frame 11 as a whole;

[0050] The ends of the first frame 111 and the fourth frame 114 are provided with a plurality of adjustment holes A; the mounting seat 12 is provided with a plurality of adjustment holes B corresponding to the adjustment holes A;

[0051] By passing the fixing pin through the adjustment hole A and the adjustment hole B, the longitudinal height of the round arch frame 11 can be adjusted;

[0052] The end of the second frame 112 is provided with an adjustment C hole, and the end of the third frame 113 is formed into a plug-in tube shape and is provided with a plurality of adjustment D holes corresponding to the adjustment C holes;

[0053] The horizontal length of the circular arch frame 11 can be adjusted by passing the fixing pin through the adjustment hole C and the adjustment hole D.

[0054] Preferably, the first frame 111 and the second frame 112 are connected via a hinge shaft; and a first limit plate 14 and a second limit plate 15 are provided at the hinge.

[0055] The fixing pin passes through the first limiting plate 14, the first frame 111, the second frame 112 and the second limiting plate 15, so that the first frame 111 and the second frame 112 can be fixed to each other;

[0056] The hinge relationship between the third frame 113 and the fourth frame 114 is the same as that between the first frame 111 and the second frame 112, and they are also fixed by a limiting plate.

[0057] The purpose of designing the first frame 111 and the second frame 112, the third frame 113 and the fourth frame 114 to be hinged is to reduce the occupied area of ​​the space when storing, which is convenient for storage and reuse.

[0058] Preferably, the mounting seat 12 comprises a socket 121 and a base 122, and the socket 121 and the base 122 are hingedly connected.

[0059] The base 122 is in a T-shaped structure, and the fixed slide rail 3 is provided with a T-shaped slideway corresponding to the base 122. The base 122 and the fixed slide rail 3 are slidably connected to achieve the cooperation between the mounting seat 12 and the fixed slide rail 3;

[0060] The T-shaped design can achieve limited fixation. When in use, the fixed slide rail 3 is first fixed to the ground by ground nails, and then the mounting seat 12 is installed, so that the mounting seat 12 will not fall off, and it can also work smoothly in windy weather.

[0061] Preferably, a plurality of limit holes A are provided at the bottom of the socket 121 , and corresponding limit holes B are provided on the base 122 . Limit pins are inserted into the limit holes A and B to achieve relative fixation between the socket 121 and the base 122 .

[0062] Preferably, the position limiting hole A and the position limiting hole B cooperate with each other to fix the socket 121 at a 90° or 180° position; in this way, the opening and closing states of the round arch frame 11 can be adjusted, and when encountering strong winds, the entire sand pit cover will not be blown up due to the strong wind, which can well protect the sand pit.

[0063] The circular arch frame 11 is provided with a plurality of connecting buckles 13, and the connecting buckles 13 are used to bind with the cloth cover 2; the installation method of the cloth cover 2 includes but is not limited to the above-mentioned situation; the cloth cover 2 is a waterproof cloth;

[0064] The installation method of the cloth cover 2 and the unfolding frame 1 is relatively common, as long as it can achieve the purpose of stable connection.

[0065] When in use, first install the fixed slide rail 3 on the ground on both sides of the sand pit, and then install the mounting seat 12 on the fixed slide rail 3; according to the size of the sand pit, adjust and fix the position of the mounting seat 12 and the horizontal length of the round arch frame 11, and then install the round arch frame 11 into the mounting seat 12; install the cloth cover 2 on the round arch frame 11, and then keep the mounting frame in the middle position vertically and motionless, tilt the mounting frames on both sides to open the cloth cover 2 to cover the sand pit, and then insert the limit pin into the limit hole A and the limit hole B to fix the angle of the mounting seat 12, and the operation can be completed, and it can be put away after use.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bunker cover for a safety net impact resistance test, characterized in that: It includes an unfolding frame and a cloth cover, wherein the cloth cover is mounted on the unfolding frame to form a bunker cover; The unfolding frame is mounted to the ground via fixed slide rails, and the fixed slide rails are arranged on both sides of the sand pit; The unfolded frame can adjust the size in the horizontal and vertical directions; The open bunker cover can shield the bunker.

2. The bunker cover for testing the impact resistance of a safety net according to claim 1, characterized in that: The unfolding frame includes a plurality of round arch frames and a plurality of mounting seats; one round arch frame corresponds to two mounting seats; The mounting seat is mounted on the fixed slide rail; and the two ends of the round arch frame are respectively plugged into the mounting seat.

3. The bunker cover for testing the impact resistance of a safety net according to claim 2, characterized in that: The round arch frames include frame No. 1, frame No. 2, frame No. 3 and frame No. 4; The first frame and the second frame are hinged end to end, the third frame and the fourth frame are hinged end to end, and the second frame can be plugged into the third frame to form a round arch frame as a whole; The ends of the No. 1 frame and the No. 4 frame are provided with a plurality of adjustment holes A; the mounting seat is provided with a plurality of adjustment holes B corresponding to the adjustment holes A; The longitudinal height of the round arch frame can be adjusted by passing the fixing pin through the adjustment hole A and the adjustment hole B; The end of the second frame is provided with an adjustment C hole, and the end of the third frame is formed into a plug-in tube shape and is provided with a plurality of adjustment D holes corresponding to the adjustment C holes; The horizontal length of the round arch frame can be adjusted by passing the fixing pin through the adjusting hole C and the adjusting hole D.

4. The bunker cover for testing the impact resistance of a safety net according to claim 3, characterized in that: The first frame and the second frame are connected by a hinge shaft; and a first limit plate and a second limit plate are provided at the hinge; The fixing pin passes through the No. 1 limiting plate, the No. 1 frame, the No. 2 frame and the No. 2 limiting plate, so that the No. 1 frame and the No. 2 frame can be fixed.

5. The bunker cover for testing the impact resistance of a safety net according to claim 2, characterized in that: The mounting seat comprises a socket and a base, wherein the socket and the base are hingedly connected. The base is in a T-shaped structure, and the fixed slide rail is provided with a T-shaped slideway corresponding to the base. The base and the fixed slide rail are slidably connected to achieve cooperation between the mounting seat and the fixed slide rail.

6. The bunker cover for testing the impact resistance of a safety net according to claim 5, characterized in that: The bottom of the socket is provided with a plurality of limit holes A, and the base is provided with corresponding limit holes B. The limit pin is inserted into the limit hole A and the limit hole B to achieve relative fixation between the socket and the base.

7. The bunker cover for testing the impact resistance of a safety net according to claim 6, characterized in that: The cooperation between the position limiting hole A and the position limiting hole B can realize the fixing of the socket at the position of 90° or 180°.

8. The bunker cover for testing the impact resistance of a safety net according to claim 6, characterized in that: The circular arch frame is provided with a plurality of connecting buckles, and the connecting buckles are used for binding with the cloth cover.

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