Hidden handle type trench cover plate

Abstract

The utility model discloses a hidden handle type trench cover plate. The hidden handle type trench cover plate comprises a cover plate body, at least one stepped hole is formed in the cover plate body, a bolt is arranged on the stepped hole, and the stepped hole comprises an unthreaded hole and a threaded hole which are communicated with each other; the bolt is screwed under the state that the threaded rod of the bolt is in threaded connection with the threaded hole, and the head of the bolt can completely enter and stretch out of the unthreaded hole. The stepped hole is formed in the cover plate body, and the bolt is arranged in the stepped hole, so that the head of the bolt is completely immersed into the unthreaded hole of the stepped hole by screwing the bolt under the condition that maintenance is not needed, the flatness and attractiveness of the ground are ensured, and meanwhile, pedestrians are prevented from being stumbled by carelessness; the head of the bolt is exposed out of the unthreaded hole, a maintainer can lift the cover plate body through the head of the bolt, and compared with a traditional cable trench cover plate adopting a handle ring, the ceramic face cannot be damaged or collided in the lifting and putting-down process.

Description

Technical Field

[0001] This utility model relates to the field of cable protection technology for power facilities, and in particular to a concealed handle trench cover. Background Technology

[0002] During the construction of power systems, cable trenches are typically installed between primary and secondary equipment in substations to connect the two systems via cables within the trenches. Some sections of these cable trenches are equipped with removable covers to facilitate inspection and maintenance during construction and repair, allowing for monitoring of the cables and any water accumulation within the trench.

[0003] To ensure a smooth and aesthetically pleasing surface for cable trench covers, while also facilitating easy opening, pull handles are typically used. Maintenance personnel lift the cover using the handle, and after maintenance, lower the cover and release the handle, allowing it to rest back on the cover surface. This method is suitable for outdoor metal cable trench covers. For indoor cable trench covers, considering the flatness and aesthetics of the ground, glazed ceramic tile covers are usually used. However, ceramic tile covers are prone to cracking or chipping on the glaze when the handle is lowered, affecting their appearance and increasing replacement costs. Summary of the Invention

[0004] This utility model provides a concealed handle type trench cover to overcome the problem that indoor cable trench covers are easily cracked or bumped when the handle ring falls.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A concealed handle trench cover includes: a cover body;

[0007] The cover plate body has at least one stepped hole, and the stepped hole is provided with a bolt. The stepped hole includes a light hole and a threaded hole that communicate with each other.

[0008] Tightening the bolt while the bolt shank remains threadedly connected to the threaded hole allows the head of the bolt to fully enter and exit the aperture.

[0009] Furthermore, it also includes a lifting handle, which includes a plate and a handle fixed to the plate;

[0010] The insert plate is provided with a socket, and the bolt can be inserted into the socket radially.

[0011] When the bolt is inside the socket, tightening the bolt will cause the head of the bolt to press the insert plate firmly against the cover plate body.

[0012] Furthermore, the width of the socket gradually converges from the outside to the inside.

[0013] Furthermore, the socket is rectangular.

[0014] Furthermore, the socket is trapezoidal.

[0015] Furthermore, it includes two lifting handles, and the cover plate body is provided with two symmetrically arranged stepped holes.

[0016] Furthermore, it also includes a hole plug that can be inserted into the optical aperture.

[0017] Furthermore, a connector is fixed on the cover plate body. The connector includes an outer edge, a first sleeve, and a second sleeve arranged sequentially from top to bottom. The outer edge is fixed on the top surface of the cover plate body. The first sleeve has a light hole, and the second sleeve has a threaded hole.

[0018] Beneficial effects:

[0019] This utility model provides a concealed handle type trench cover. By setting a stepped hole on the cover body and installing a bolt in the stepped hole, when no maintenance is needed, tightening the bolt will make the bolt head completely submerged in the light hole of the stepped hole, thereby preventing pedestrians from tripping. When maintenance is required, simply loosen the bolt so that the bolt head is exposed outside the light hole, and maintenance personnel can lift the cover body through the bolt head. Compared with traditional cable trench covers that use a handle ring, this design will not cause damage to the ceramic surface or cause bumps during lifting and lowering. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of the concealed handle trench cover disclosed in this utility model;

[0022] Figure 2 This is a schematic diagram of the lifting handle of the concealed handle type trench cover disclosed in this utility model;

[0023] Figure 3 This is a front view schematic diagram of the hole plug of the concealed handle type trench cover plate disclosed in this utility model;

[0024] Figure 4 This is a cross-sectional schematic diagram of the stepped hole of the concealed handle type trench cover plate disclosed in this utility model;

[0025] Figure 5 This is a cross-sectional schematic diagram showing the engagement of the stepped hole and bolts in the concealed handle type trench cover disclosed in this utility model.

[0026] In the picture:

[0027] 1. Cover plate body;

[0028] 2. Stepped hole;

[0029] 3. Bolts;

[0030] 4. Insert plate; 41. Socket;

[0031] 5. Handle;

[0032] 6. Hole plug;

[0033] 71. Outer edge; 72. First sleeve; 73. Second sleeve;

[0034] 8. Aperture;

[0035] 9. Threaded hole. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] This embodiment provides a concealed handle type trench cover, such as Figure 1 As shown, it includes: cover plate body 1;

[0038] like Figure 1 As shown, the cover plate body 1 has at least one stepped hole 2, and the stepped hole 2 is provided with a bolt 3, such as... Figure 4 As shown, the stepped hole 2 includes an optical hole 8 and a threaded hole 9 that are interconnected.

[0039] When the bolt 3 is screwed into the threaded hole 9 while the bolt 3 is in a threaded connection with the threaded hole 9, the head of the bolt 3 can be fully inserted into and protruded from the light hole 8.

[0040] In this embodiment, the bolt 3 can be a slotted bolt or a cross-head bolt;

[0041] This embodiment provides a hidden handle type trench cover. By setting a stepped hole 2 on the cover body 1 and installing a bolt 3 in the stepped hole 2, when no maintenance is needed, tightening the bolt 3 will make the head of the bolt 3 completely submerged in the light hole 8 of the stepped hole 2, thereby preventing pedestrians from tripping. When maintenance is required, simply loosen the bolt 3 so that the head of the bolt 3 protrudes from the light hole 8, and maintenance personnel can lift the cover body 1 through the head of the bolt 3. Compared with traditional cable trench covers with pull handles, this method will not cause damage to the ceramic surface or cause bumps during lifting and lowering. When no maintenance is being performed, there is no exposed handle on the cover body 1, ensuring that the ground where the cable trench is located can maintain the flatness and aesthetics of the ground to the maximum extent after the cover is installed, while also preventing pedestrians from tripping.

[0042] The light hole 8 and the threaded hole 9 are arranged sequentially from top to bottom. In this embodiment, the cover plate body 1 is embedded with such... Figure 4 The connector shown includes an outer edge 71, a first sleeve 72 and a second sleeve 73 arranged sequentially from top to bottom. The outer edge 71 is fixed to the top surface of the cover plate body 1. The first sleeve 72 is provided with a light hole 8 and the second sleeve 73 is provided with a threaded hole 9.

[0043] In this embodiment, the outer edge 71, the first sleeve 72, and the second sleeve 73 are integrally formed. The bottom surface of the outer edge 71 is attached to the top surface of the cover plate body 1. The first sleeve 72 is used to provide the light hole 8, and the second sleeve 73 is used to provide the threaded hole 9. The outer edge 71 can not only increase the contact area between the cover plate body 1 and the connector, but also improve the overall aesthetics and protect the glaze surface at the contact point between the cover plate body 1 and the connector.

[0044] In a specific embodiment, a lifting handle is also included, such as... Figure 2 As shown, the lifting handle includes a plate 4 and a handle 5 fixed on the plate 4;

[0045] The insert plate 4 is provided with a socket 41, and the bolt 3 can be inserted into the socket 41 radially.

[0046] When the bolt 3 is located inside the socket 41, tightening the bolt 3 will cause the head of the bolt 3 to press the insert plate 4 onto the cover plate body 1.

[0047] Maintenance personnel can lift the cover plate body 1 directly through the head of bolt 3, which may cause hand discomfort during operation. Installing a lifting handle to lift the cover plate body 1 can reduce pressure and improve the operating experience of maintenance personnel.

[0048] In a specific embodiment, the socket 41 is rectangular, and its width remains consistent from the outside to the inside. The width of the socket 41 matches the diameter of the bolt 3, so that the bolt 3 can be inserted into the socket 41.

[0049] In a specific embodiment, such as Figure 2 As shown, the width of the socket 41 gradually narrows from the outside to the inside. The width of the narrowest part of the socket 41 matches the diameter of the bolt 3. In this embodiment, the socket 41 is trapezoidal, with the outer part being wider and the inner part being narrower, which facilitates the connection between the socket 41 and the bolt 3.

[0050] In a specific embodiment, two lifting handles are included, such as... Figure 1 As shown, the cover plate body 1 is provided with two symmetrically arranged stepped holes 2, which allows maintenance personnel to lift the cover plate body 1 with both hands through the two lifting handles, making the force distribution more balanced.

[0051] In a specific embodiment, such as Figure 3 and Figure 5 As shown, it also includes a hole plug 6, which can be inserted into the light hole 8 to prevent the bolt 3 from being exposed. The hole plug 6 plays a protective role and ensures aesthetics. The bolt 3 can be screwed on by removing the hole plug 6. After the bolt 3 is tightened, the hole plug 6 can be reinserted into the light hole 8.

[0052] When the cover plate does not need to be opened, the head of bolt 3 is hidden inside the light hole 8, and the plug 6 is inserted to seal the light hole 8. When the cover plate needs to be opened, the plug 6 is removed, and the head of bolt 3 is unscrewed from the light hole 8. The screw of bolt 3 will be inserted into the socket 41 of the lifting handle. At this time, bolt 3 is tightened to fix the lifting handle to the cover plate body 1. Maintenance personnel can lift it up to remove the cover plate for construction. When the construction is completed and the cover plate needs to be closed, the cover plate is placed back on top of the cable trench. After loosening bolt 3 and removing the lifting handle, bolt 3 is tightened so that the head of bolt 3 is completely screwed into the light hole 8. The plug 6 is then put back on to form an aesthetically pleasing whole and to prevent pedestrians from tripping over the protruding handle.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended 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 therein. Such 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 concealed handle type trench cover, characterized in that, include: Cover plate body (1); The cover plate body (1) has at least one stepped hole (2), and the stepped hole (2) is provided with a bolt (3). The stepped hole (2) includes an interconnected light hole (8) and a threaded hole (9). When the bolt (3) is screwed into the threaded hole (9) while the bolt (3) is in a threaded connection with the threaded hole (9), the head of the bolt (3) can be fully inserted into and protruded from the light hole (8).

2. The concealed handle trench cover according to claim 1, characterized in that, It also includes a lifting handle, which includes a plate (4) and a handle (5) fixed on the plate (4); The insert plate (4) is provided with a socket (41), and the screw of the bolt (3) can be inserted into the socket (41) radially. When the bolt (3) is located inside the socket (41), tightening the bolt (3) will cause the head of the bolt (3) to press the insert plate (4) onto the cover plate body (1).

3. The concealed handle trench cover according to claim 2, characterized in that, The width of the socket (41) gradually converges from the outside to the inside.

4. The concealed handle trench cover according to claim 2, characterized in that, The socket (41) is rectangular.

5. The concealed handle trench cover according to claim 3, characterized in that, The socket (41) is trapezoidal.

6. The concealed handle trench cover according to claim 2, characterized in that, It includes two lifting handles, and the cover plate body (1) is provided with two symmetrically arranged stepped holes (2).

7. The concealed handle trench cover according to claim 1, characterized in that, It also includes a hole plug (6) that can be inserted into the light hole (8).

8. The concealed handle trench cover according to claim 1, characterized in that, The cover plate body (1) is fixed with a connector, which includes an outer edge (71), a first sleeve (72) and a second sleeve (73) arranged sequentially from top to bottom. The outer edge (71) is fixed on the top surface of the cover plate body (1). The first sleeve (72) is provided with a light hole (8) and the second sleeve (73) is provided with a threaded hole (9).

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