A clamp for securing steel grating

Abstract

The utility model relates to the technical field of clamp, specifically disclose a clamp for fixing steel grating, including first clamping plate and second clamping plate, including first clamping plate and second clamping plate, still include threaded sleeve and threaded lead screw, the first clamping plate is provided with perforation, the upper end of threaded sleeve passes through perforation and is connected with the nut, and the diameter of nut is greater than the width of perforation, the lower extreme of threaded sleeve is connected with the upper end of threaded lead screw, the lower extreme of threaded lead screw is hinged with second clamping plate, makes second clamping plate can rotate angle and with lateral state from the one side of steel grating to the other side of steel grating. The operator only needs to operate on one side of steel grating, and does not need to open steel grating or two operators operate on both sides of steel grating to complete clamping in the mode such as, so that the working efficiency of clamping is improved, and the human consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of clamp technology, specifically to a clamp for fixing steel grating. Background Technology

[0002] Steel grating, also known as steel grating panels or steel grids, is mainly used as trench covers, steel structure platform panels, and stair treads. The installation of steel grating is divided into direct laying or welding to the surrounding steel structure for secure fixing, depending on the actual situation. When welding is not possible, and direct laying poses safety hazards (such as the grating sliding due to people stepping on it), tools are needed for non-welding fixing. Clamps are a common tool for fixing steel grating.

[0003] The clamp consists of two clamping structures. One part is located on the bottom surface of the steel grating, and the other part is located on the top surface of the steel grating and the building's foundation structure (where the steel grating overlaps with the foundation structure) to clamp and fix the steel grating. Currently, the connection between the two clamping structures and the connecting structure requires manual operation. During installation, two installers are needed to work together on the top and bottom surfaces of the steel grating. If the gaps in the steel grating are too small during installation, the clamping structure cannot pass through the gaps. In subsequent use, if the clamp needs to be replaced or other steel structures need to be fixed to the steel grating (the steel grating is already fixed, and the clamp needs to be reinstalled), and personnel cannot access the bottom or top surface of the steel grating, the steel grating must be removed from its installation position. The two clamping structures of the clamp must work together from the top and bottom surfaces of the steel grating to fix it to the foundation steel structure, resulting in low efficiency in clamping and fixing the steel grating. Utility Model Content

[0004] The purpose of this invention is to provide a clamp for fixing steel grating, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A clamp for fixing a steel grating includes a first clamping plate and a second clamping plate, as well as a threaded sleeve and a threaded rod. The first clamping plate has a through hole, and the upper end of the threaded sleeve passes through the through hole and is connected to a nut. The diameter of the nut is larger than the width of the through hole. The lower end of the threaded sleeve is threadedly connected to the upper end of the threaded rod. The lower end of the threaded rod is hinged to the second clamping plate, so that the second clamping plate can rotate to extend laterally from one side of the steel grating to the other side.

[0006] Furthermore, the perforation includes a first strip-shaped perforation and a second strip-shaped perforation, the first strip-shaped perforation and the second strip-shaped perforation are connected, and the width of the second strip-shaped perforation is less than the width of the first strip-shaped perforation; the diameter of the threaded rod is less than the diameter of the threaded sleeve, and the diameter of the threaded sleeve is greater than the width of the second strip-shaped perforation, so that the threaded sleeve cannot pass through the second strip-shaped perforation; the diameter of the threaded rod is less than the width of the second strip-shaped perforation, so that the threaded rod can pass through the second strip-shaped perforation.

[0007] Furthermore, the second clamping plate is a W-shaped clamping plate, with the openings of the two grooves on the left and right sides of the W-shaped clamping plate facing upwards.

[0008] Furthermore, a vertical clamping plate is installed at the rear end of the first clamping plate, and a clamping block is provided at the lower end of the clamping plate. The clamping block is used to engage in the gap of the steel grid to prevent the first clamping plate from rotating.

[0009] Compared with the prior art, this utility model has the following advantages and beneficial effects: The second clamping plate can be inserted laterally into the other side of the steel grating by rotating its angle from one side (top or bottom). After the second clamping plate is inserted, the threaded sleeve is rotated to shorten the overall length of the threaded sleeve and threaded rod, thereby clamping the first and second clamping plates together. This clamps the steel grating and the foundation structure of the surrounding building together between the first and second clamping plates, securing and fixing the steel grating to the foundation structure of the surrounding building. Operators only need to operate on one side of the steel grating, eliminating the need to remove the grating or have two operators operating on both sides, thus improving clamping efficiency and reducing labor costs. Attached Figure Description

[0010] Figure 1 This is a diagram showing the state of the present invention before installation.

[0011] Figure 2 This is a diagram showing the state of the second clamping plate passing through the steel grating.

[0012] Figure 3 This is a diagram showing the state of the second clamping plate after it passes through the steel grating.

[0013] Figure 4 This is a diagram showing the state of the second clamping plate after it passes through the steel grating and the clamping position has been adjusted.

[0014] Figure 5 This is a diagram showing the state in which the present invention is clamped to the fixed base structure.

[0015] Figure 6 This diagram illustrates the clamping process using the lower end of the threaded sleeve.

[0016] Figure 7 This is a top view of the first clamping plate.

[0017] The meanings of the labels in the diagram are as follows: 1-Steel grating, 2-First clamping plate, 3-Second clamping plate, 4-Threaded sleeve, 5-Threaded screw, 6-First strip-shaped perforation, 7-Second strip-shaped perforation, 8-Nut, 9-Clamping plate, 10-Clamping block. Detailed Implementation

[0018] 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, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0019] like Figure 1 As shown, a clamp for fixing a steel grating includes a first clamping plate 2 and a second clamping plate 3, as well as a threaded sleeve 4 and a threaded rod 5. The first clamping plate 2 has a through hole, and the upper end of the threaded sleeve 4 passes through the through hole and is connected to a nut 8, the diameter of which is larger than the width of the through hole. The lower end of the threaded sleeve 4 is threadedly connected to the upper end of the threaded rod 5. The lower end of the threaded rod 5 is hinged to the second clamping plate 3, so that the second clamping plate 3 can rotate to extend from one side of the steel grating to the other side in a lateral state.

[0020] This utility model applies to installation environments where welding is not possible for steel grating 1. For such environments, conventional installation methods include direct installation (without fixing) or simple fixing using clamps. Existing clamps require fixing from both sides of the steel grating 1. One part of the clamping structure must be located on the bottom surface of the steel grating 1, and the other part must be located on the top surface of the steel grating 1 to clamp against the surrounding environment to complete the fixation. This application improves upon the shortcomings of existing clamps. In this application, the first clamping plate 2 and the second clamping plate 3 clamp the steel grating 1 on both sides (top and bottom surfaces), respectively. Furthermore, when clamping the steel grating 1, if... Figure 5 In the state shown, the first clamping plate 2 or the second clamping plate 3 clamps the top surface of the steel grating 1, and the second clamping plate 3 or the first clamping plate 2 clamps the bottom surface of the steel grating 1 to the building foundation structure fixed in the installation environment, thereby achieving the clamping and fixing of the steel grating 1. The overall thickness of the second clamping plate 3 refers to... Figure 1 The thickness of the second clamping plate 3 from its highest point to its lowest point in this state is intended to indicate that when the second clamping plate 3 passes through the steel grating laterally, because the overall thickness of the second clamping plate 3 is less than the width of the gaps in the steel grating, the second clamping plate 3 can pass smoothly through... Figure 2 The middle and lateral states pass through the steel grating.

[0021] The first clamping plate 2 and the second clamping plate 3 of this utility model are connected as a whole by a threaded sleeve 4 and a threaded screw 5. When the threaded sleeve 4 and the threaded screw 5 rotate relative to each other, the length of the whole assembly of the threaded sleeve 4 and the threaded screw 5 can be shortened or lengthened, thereby clamping or loosening the first clamping plate 2 and the second clamping plate 3. Since the second clamping plate 3 and the threaded screw 5 are hinged, when clamping, if... Figure 2 In the state shown, the second clamping plate 3 is rotated first above the steel grating 1, so that the second clamping plate 3 passes laterally through the gap of the steel grating 1 and reaches the bottom of the steel grating 1; when the second clamping plate 3 reaches the bottom of the steel grating 1, without the restriction of the steel grating 1 on the second clamping plate 3, under the action of gravity, the second clamping plate 3 will return to its original position, achieving the desired result. Figure 3 The object is placed flat as shown. Then adjust the angle of the second clamping plate 3 to achieve the desired flatness. Figure 4 In the state shown, the second clamping plate 3 is pulled upwards to compress the bottom of the steel grating 1, ensuring that the second clamping plate 3 and the threaded rod 5 do not rotate when the threaded sleeve 4 is rotated, thereby smoothly shortening the overall length of the threaded sleeve 4 and the threaded rod 5. A through hole is provided to ensure that the nut 8 at the upper end cannot pass through the through hole. The clamping can be completed by continuously rotating the nut 8, thus completing the clamping of the steel grating 1 by this utility model.

[0022] The advantage of this invention in use is that the operator only needs to work on one side of the steel grating 1, instead of removing the steel grating 1 or having two operators work on both sides of the steel grating 1 to complete the clamping, thus improving clamping efficiency and reducing manpower consumption. The above workflow only describes the process of operating the invention from above the steel grating 1 when the steel grating 1 is placed flat. In reality, the steel grating 1 can also be placed unevenly, or the invention can be used to clamp from below to above, but this requires more skill and coordination from the operators.

[0023] like Figure 7As shown, further, the perforation includes a first strip-shaped perforation 6 and a second strip-shaped perforation 7, the first strip-shaped perforation 6 and the second strip-shaped perforation 7 are connected, and the width of the second strip-shaped perforation 7 is less than the width of the first strip-shaped perforation 6; the diameter of the threaded rod 5 is less than the diameter of the threaded sleeve 4, and the diameter of the threaded sleeve 4 is greater than the width of the second strip-shaped perforation 7, so that the threaded sleeve 4 cannot pass through the second strip-shaped perforation 7; the diameter of the threaded rod 5 is less than the width of the second strip-shaped perforation 7, so that the threaded rod 5 can pass through the second strip-shaped perforation 7. The thickness of the steel grating 1 can vary considerably, and the length adjustment structure of the threaded sleeve 4 and the threaded rod 5 used in this application has a limited adjustment range. Therefore, the first strip-shaped perforation 6 and the second strip-shaped perforation 7 are connected, and the width of the first strip-shaped perforation 6 is greater than the width of the second strip-shaped perforation 7. When clamping a conventional steel grating 1, clamping is achieved by pressing the lower end of the nut 8 against the upper surface of the first clamping plate 2. However, when dealing with thinner steel gratings 1, the stroke of the threaded sleeve 4 and threaded rod 5 is insufficient, and even complete shortening cannot achieve clamping. In this case, clamping is accomplished by pressing the lower end of the threaded sleeve 4 against the upper surface of the first clamping plate 2. Since the diameter of the threaded sleeve 4 is larger than the width of the second strip-shaped perforation 7, the threaded rod 5 is moved into the second strip-shaped perforation 7. At this point, the threaded sleeve 4 is positioned above the second strip-shaped perforation 7. When shortening the overall length of the threaded sleeve 4 and threaded rod 5, the lower end of the threaded sleeve 4, unable to pass through the second strip-shaped perforation 7, will press against the upper surface of the first clamping plate 2 earlier, thus forming a clamping mechanism. Figure 6 The clamping state shown allows this invention to clamp even thinner steel grating 1.

[0024] Furthermore, the second clamping plate 3 is a W-shaped clamping plate, with the openings of the left and right grooves facing upwards. Here, "the openings of the left and right grooves facing upwards" means... Figure 1 The orientation of the groove openings actually refers to the orientation of the openings of the two grooves on the left and right sides toward the first clamping plate 2. During the fixing process on one side of the steel grating 1, the second clamping plate 3 needs to be tightened on this side. To prevent the second clamping plate 3 from rotating, a W-shaped clamping plate is provided. The left and right grooves of the W-shaped clamping plate are pressed against the steel plate of the steel grating 1, and the two ends of the W-shaped clamping plate are engaged in the gaps of the steel grating 1, so that the second clamping plate 3 cannot rotate under tension. Compared with using the friction generated by compression to prevent the second clamping plate 3 from rotating, the engagement of the W-shaped clamping plate is more stable.

[0025] Furthermore, a vertical clamping plate 9 is installed at the rear end of the first clamping plate 2, and a clamping block 10 is provided at the lower end of the clamping plate 9. The clamping block 10 is used to engage in the gap of the steel grid 1 to prevent the first clamping plate 2 from rotating. The clamping block 10 of the clamping plate 9 is also for engaging in the gap of the steel grid 1, so that the first clamping plate 2 is not easy to rotate after being clamped, and the clamping effect is better.

[0026] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0027] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A clamp for fixing steel grating, characterized in that: It includes a first clamping plate (2) and a second clamping plate (3), as well as a threaded sleeve (4) and a threaded screw (5); The first clamping plate (2) has a through hole, and the upper end of the threaded sleeve (4) passes through the through hole and is connected to a nut (8). The diameter of the nut (8) is greater than the width of the through hole. The lower end of the threaded sleeve (4) is threadedly connected to the upper end of the threaded screw (5); The lower end of the threaded screw (5) is hinged to the second clamping plate (3), so that the second clamping plate (3) can rotate to extend from one side of the steel grating to the other side of the steel grating in a lateral state.

2. The clamp for fixing steel grating according to claim 1, characterized in that: The perforation includes a first strip perforation (6) and a second strip perforation (7), the first strip perforation (6) and the second strip perforation (7) are connected, and the width of the second strip perforation (7) is smaller than the width of the first strip perforation (6); The diameter of the threaded screw (5) is smaller than the diameter of the threaded sleeve (4), and the diameter of the threaded sleeve (4) is larger than the width of the second strip-shaped through hole (7), so that the threaded sleeve (4) cannot pass through the second strip-shaped through hole (7); the diameter of the threaded screw (5) is smaller than the width of the second strip-shaped through hole (7), so that the threaded screw (5) can pass through the second strip-shaped through hole (7).

3. A clamp for fixing steel grating according to claim 1, characterized in that: The second clamp (3) is a W-shaped clamp, with the openings of the two grooves on the left and right sides of the W-shaped clamp facing upwards.

4. A clamp for fixing steel grating according to claim 1, characterized in that: The first clamping plate (2) is equipped with a vertical clamping plate (9) at its rear end. The lower end of the clamping plate (9) is provided with a clamping block (10). The clamping block (10) is used to engage in the gap of the steel grid (1) to prevent the first clamping plate (2) from rotating.

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