Cover plate facilitating opening and closing of cable trench

Abstract

The utility model relates to the technical field of power industry, in particular to a cover plate convenient for opening and closing a cable trench, which comprises a plate body positioned on the cable trench, an expansion bolt body mounted in the plate body, a screw column mounted on the plate body and extending into the expansion bolt body, and a lifting ring arranged on the screw column. The expansion bolt body is installed by forming the positioning groove in the plate body, and the screw column in the hanging ring extends into the expansion bolt body, so that tools such as a crowbar do not need to be used when the plate body is opened, the working intensity of an operator is reduced, and the plate body is convenient to open; the movable block is extruded by the bolt column to enable the fixed port to extend into the plate body, so that the plate body and the expansion bolt body are quickly connected, the surrounding encapsulation of the cover plate of the power trench cannot be damaged when the plate body is opened, the hidden effect is achieved after the lifting ring is detached, the appearance of the cover plate is not affected, and the cover plate can be conveniently used when needed.

Description

Technical Field

[0001] This utility model relates to the technical field of the power industry, and in particular to a cover plate that facilitates the opening and closing of cable trenches. Background Technology

[0002] To reduce the volume and render waste harmless, waste-to-energy plants will be built, and multiple cable trenches will be dug within these plants to lay cables underground.

[0003] After the cables are centrally organized in the cable trench, the trench is sealed with a cover plate. When the cables in the trench need maintenance, the cover plate needs to be removed. Currently, the cable trench is opened by prying open the cover plate with a pry bar. However, this method has the following drawbacks: During the process of prying the cover plate, it is difficult to control the point of force precisely, which may result in operator injury due to the pry bar rebounding or the cover plate suddenly loosening. The process of prying and lifting the cover plate is slow, especially for heavier cover plates or cover plates without a point of force, which may require damage to the power trench cover plate and sealing edge, and may take several minutes or even longer to complete the opening operation, further affecting the efficiency of cable maintenance in the cable trench. Utility Model Content

[0004] The purpose of this utility model is to solve the problem of inconvenience in opening the cover plate in the prior art, and to propose a cover plate that facilitates the opening and closing of cable trenches.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cover plate for easy opening and closing of a cable trench includes a plate body located on the cable trench, an expansion bolt body installed in the plate body, a screw post extending into the expansion bolt body installed on the plate body, and a lifting ring provided on the screw post; an oblique through hole is provided in the plate body; the screw post includes an internal support mechanism for opening the expansion bolt body so that the expansion bolt body partially enters the oblique through hole.

[0007] Preferably, the lifting ring and the screw post extend to the upper end of the plate body, and the inner wall of the expansion bolt is provided with a spiral groove that cooperates with the screw post.

[0008] Preferably, the number of expansion plugs is four, and the four expansion plugs are symmetrically and evenly distributed on the upper end of the plate.

[0009] Preferably, the lifting ring and the screw post extend to the front end of the plate body, and the inner wall of the expansion bolt is provided with a spiral groove that cooperates with the screw post.

[0010] Preferably, the number of expansion plugs is four, and the four expansion plugs are arranged side by side on the front end of the plate.

[0011] Preferably, the expansion bolt body consists of a fixed port and a movable port; a movable block corresponding to the screw post and pressing against the movable port is slidably sleeved inside the expansion bolt body.

[0012] Preferably, a thin rod is fixedly installed inside the expansion bolt, and a baffle is fixedly installed on the thin rod. A spring is welded between the baffle and the moving block.

[0013] Preferably, the plate has a positioning groove for placing the expansion bolt, and the plate has an oblique through hole that communicates with the positioning groove and compresses the movable port.

[0014] Preferably, there are two movable ports, the thin rod is vertically disposed between the two movable ports, and the spring is vertically welded.

[0015] Preferably, the movable port has an inclined surface that moves against the movable block, and the movable block has a frustum structure.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This utility model installs the expansion bolt body by opening a positioning groove on the plate body and extending the screw post in the lifting ring into the expansion bolt body, so that the plate body can be opened without the use of tools such as pry bars, which not only reduces the workload of the operator, but also makes the plate body easier to open.

[0018] 2. This utility model uses the compression of the moving block by the bolt column to extend the fixed port into the plate body, thereby quickly connecting the plate body and the expansion bolt body. This ensures that the plate body will not damage the perimeter of the power trench cover when it is opened, and achieves a hidden effect when the lifting ring is removed. This does not affect the appearance of the cover and allows for convenient use when needed. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a cover plate for easy opening and closing of cable trenches proposed in this utility model;

[0020] Figure 2 This is a cross-sectional view of a cover plate for facilitating the opening and closing of cable trenches, as proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the expansion bolt of a cover plate for easy opening and closing of cable trenches proposed in this utility model.

[0022] Figure 4 This is a cross-sectional view of the expansion bolt of a cover plate for easy opening and closing of cable trenches, as proposed in this utility model.

[0023] In the diagram: 1. Plate; 2. Expansion bolt; 201. Fixed port; 202. Movable port; 3. Positioning groove; 4. Angled through hole; 5. Screw post; 6. Lifting ring; 7. Thin rod; 8. Baffle; 9. Moving block; 10. Spring; 11. Inclined surface. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1-4 A cover plate for easy opening and closing of cable trenches includes a plate body 1 located on the cable trench, an expansion bolt body 2 installed inside the plate body 1, a screw post 5 extending into the expansion bolt body 2 installed on the plate body 1, and a lifting ring 6 provided on the screw post 5; in some embodiments, the plate body 1 weighs less than 15kg, which can be easily lifted by one worker, and a heavier plate body 1 can be lifted using a simple cart, which can be connected to the lifting ring 6.

[0026] The lifting ring 6 and the screw post 5 extend to the upper part of the plate 1. The inner wall of the expansion bolt 2 is provided with a spiral groove that matches the screw post 5. There are four expansion bolts 2. The lifting ring 6 can be removed without opening the power cable trench, achieving a hidden effect and not affecting the aesthetics of the plate 1.

[0027] In some embodiments, the lifting ring (6) and the screw post (5) extend to the front end of the plate (1), and the inner wall of the expansion bolt (2) is provided with a spiral groove that cooperates with the screw post (5). There are four expansion bolts (2), and the four expansion bolts (2) are arranged side by side on the front end of the plate (1).

[0028] The expansion bolt body 2 consists of a fixed port 201 and a movable port 202. A movable block 9, corresponding to the screw post 5 and pressing against the movable port 202, is slidably sleeved inside the expansion bolt body 2. A thin rod 7 is fixedly installed inside the expansion bolt body 2, and a baffle 8 is fixedly installed on the thin rod 7. A spring 10 is welded between the baffle 8 and the movable block 9. There are two movable ports 202. The thin rod 7 is vertically set between the two movable ports 202. The spring 10 is vertically welded. The spring 10 not only resets the movable block 9, but also ensures that the movable block 9 will not cause a violent impact on the movable port 202 when it moves.

[0029] The plate 1 has a positioning groove 3 for placing the expansion bolt 2. The plate 1 also has an oblique through hole 4 that communicates with the positioning groove 3 and compresses the movable port 202. The movable port 202 has an inclined surface 11 that moves against the moving block 9. The moving block 9 is a frustum structure. By the correspondence between the moving block 9 and the inclined surface 11 on the movable port 202, the movable port 202 is continuously subjected to force and expands outward into the oblique through hole 4, thus connecting the expansion bolt 2 to the plate 1. This prevents the plate 1 from damaging the surrounding encapsulation and cable when it is raised. It also avoids the drawbacks of traditional perforated plate 1, such as handle corrosion, blockage, and falling debris. In emergency repair situations, the plate 1 can be quickly opened to shorten the fault handling time, reduce the impact of power outages on users, and thus improve the reliability and stability of the power system.

[0030] The functional principle of this utility model can be explained through the following operation methods:

[0031] When it is necessary to hoist plate 1;

[0032] Install four expansion bolts 2 in the positioning grooves 3 in the plate 1, and pull the lifting ring 6 so that the lifting ring 6 drives the screw post 5 to extend into the expansion bolt 2;

[0033] The traction ring 6 rotates, causing the ring 6 to drive the screw post 5 to correspond with the spiral groove, so that the screw post 5 rotates and moves downward within the fixed port 201. As the screw post 5 continues to move downward, it will squeeze the moving block 9. The spring 10 is stressed, so that the frustum surface of the moving block 9 gradually comes into contact with and squeezes the inclined surface 11 on the movable port 202. The movable port 202 will expand under continuous stress, so that the movable port 202 on the expansion bolt 2 extends into the inclined through hole 4, thereby achieving a clamp connection between the expansion bolt 2 and the plate 1, and connecting the screw post 5 on the ring 6 with the fixed port 201.

[0034] If the weight of plate 1 is relatively light, the operator can lift plate 1 directly using lifting ring 6. If the weight of plate 1 is relatively heavy, the output end of the simple cart extends to the lifting ring 6, and plate 1 is lifted using the simple cart, so that the operator can check the power status of the cable trench.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cover plate for easy opening and closing of a cable trench, comprising a plate body (1) located on the cable trench, characterized in that, An expansion bolt (2) is installed inside the plate (1), and a screw post (5) extending into the expansion bolt (2) is installed on the plate (1), and a lifting ring (6) is provided on the screw post (5); an oblique through hole (4) is provided inside the plate (1); the screw post (5) includes an internal support mechanism, which is used to open the expansion bolt (2) so that the expansion bolt (2) partially enters the oblique through hole (4).

2. The cover plate for facilitating the opening and closing of cable trenches according to claim 1, characterized in that, The lifting ring (6) and the screw post (5) extend to the upper end of the plate (1), and the inner wall of the expansion bolt (2) is provided with a spiral groove that cooperates with the screw post (5).

3. A cover plate for facilitating the opening and closing of cable trenches according to claim 2, characterized in that, The number of expansion plugs (2) is four, and the four expansion plugs (2) are symmetrically and evenly distributed on the upper end of the plate (1).

4. A cover plate for facilitating the opening and closing of cable trenches according to claim 1, characterized in that, The lifting ring (6) and the screw post (5) extend to the front end of the plate (1), and the inner wall of the expansion bolt (2) is provided with a spiral groove that cooperates with the screw post (5).

5. A cover plate for facilitating the opening and closing of cable trenches according to claim 4, characterized in that, The number of expansion plugs (2) is four, and the four expansion plugs (2) are arranged side by side on the front end of the plate (1).

6. A cover plate for facilitating the opening and closing of cable trenches according to claim 1, characterized in that, The expansion bolt (2) consists of a fixed port (201) and a movable port (202); a movable block (9) corresponding to the screw post (5) and pressing the movable port (202) is slidably sleeved inside the expansion bolt (2).

7. A cover plate for facilitating the opening and closing of cable trenches according to claim 6, characterized in that, A thin rod (7) is fixedly installed inside the expansion bolt body (2), and a baffle (8) is fixedly installed on the thin rod (7). A spring (10) is welded between the baffle (8) and the moving block (9).

8. A cover plate for facilitating the opening and closing of cable trenches according to claim 7, characterized in that, The plate (1) has a positioning groove (3) for placing the expansion bolt (2), and the plate (1) has an oblique through hole (4) that communicates with the positioning groove (3) and presses the movable port (202).

9. A cover plate for facilitating the opening and closing of cable trenches according to claim 7, characterized in that, The number of active ports (202) is two, the thin rod (7) is vertically arranged between the two active ports (202), and the spring (10) is vertically welded.

10. A cover plate for facilitating the opening and closing of cable trenches according to claim 7, characterized in that, The active port (202) is provided with an inclined surface (11) that moves against the movable block (9), and the movable block (9) is a frustum structure.

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