Labor-saving waterproof cover plate and object hanging hole waterproof structure

By designing a labor-saving waterproof cover plate using support wheels and guide wheels, the problem of waterproof cover plates in the prior art needs to be lifted and opened, achieving the effect of operating without lifting equipment, saving costs and improving waterproof performance.

CN223034837UActive Publication Date: 2025-06-27HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD
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Patent Information

Application Number
CN202422211919.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-09
Publication Date
2025-06-27
Estimated Expiration
2034-09-09

AI Technical Summary

Technical Problem

The waterproof cover of the existing lock room needs to be lifted through lifting equipment before it can be opened, which is troublesome and expensive to operate, and is prone to water leakage.

Method used

A labor-saving waterproof cover plate is designed, adopting a combined structure of support wheel and guide wheel. Through rolling contact with the maintenance well platform, the guide wheel abuts with the side wall of the waterproof ridge, the movement and locking of the plate body are achieved, and the use of hoisting equipment is avoided.

Benefits of technology

It enables easy opening or closing of the lifting hole without a special crane or crane, saving production and operation costs, improving waterproofing effect and avoiding water leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a laborsaving waterproof cover plate which comprises a plate body, supporting wheels and guide wheels, a plurality of supporting wheels form a group, two groups of supporting wheels are arranged, the two groups of supporting wheels are respectively arranged at two ends of the plate body, and the supporting wheels are uniformly arranged at the lower part of the plate body; a plurality of guide wheels form a group, two groups of guide wheels are arranged, and the two groups of guide wheels are arranged on the plate body, located at the two ends of the same position as the supporting wheels and arranged towards the interior of the plate body. When the lifting device is used, the plate body is supported through the supporting wheels and guided through the guide wheels, so that the plate body moves along the waterproof ridge, and the plate body can be easily moved away from or covered with the position above the object lifting opening by pushing the plate body to move; the hoisting hole can be opened or closed under the condition that hoisting equipment such as a special crane or a crane does not need to be used for hoisting, so that the production and operation cost is greatly saved.
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Description

Technical Field

[0001] The utility model relates to the technical field of lock maintenance structures, and particularly relates to a labor-saving waterproof cover plate and a waterproof structure for a lifting hole. Background Art

[0002] At the top of the built-in machine room of a lock or a sluice project, in order to facilitate the maintenance of equipment and facilities in the lock machine room, a maintenance lifting hole is usually set. The machine room has waterproof requirements. Generally, a waterproof sill is set around the lifting hole, and a steel cover plate is laid on the waterproof sill. The lifting hole needs to meet the requirement of lifting out equipment and facilities, and the size is generally large. The steel cover plate is heavy, and ordinary lifting equipment usually cannot reach the water side of the lock. In this way, it is necessary to use a large floating crane or a long-arm crane to lift the entire cover plate, and the lifting operation process is very troublesome and expensive. The electric waterproof cover plate (CN113802958B, a cover plate for a lifting hole with an electric flipping structure) is greatly restricted by manufacturing and installation, and water leakage is likely to occur in engineering practice. In view of this, it is necessary to propose a cover plate for the lifting hole of a lock machine room to solve the above defects.

[0003] In summary, there is an urgent need for a labor-saving waterproof cover plate to solve or at least partially solve the problems existing in the prior art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a labor-saving waterproof cover plate, aiming to solve the technical problem that the existing waterproof cover plate needs to be lifted by a lifting device to be opened. The specific technical solution is as follows:

[0005] A labor-saving waterproof cover plate includes a plate body, support wheels and guide wheels. Multiple support wheels are in a group, and two groups of support wheels are arranged, and the two groups of support wheels are respectively arranged at both ends of the plate body, and the support wheels are all arranged at the lower part of the plate body; multiple guide wheels are in a group, and two groups of guide wheels are arranged on the plate body, and are located at both ends in the same position as the support wheels, and the two groups of guide wheels are both arranged towards the inside of the plate body.

[0006] Preferably, the plate body is square, and the two groups of support wheels are arranged on two opposite sides of the plate body, and the two groups of guide wheels are also respectively arranged on the same two sides as the support wheels.

[0007] Further, the support wheel includes a wheel seat, a wheel body and a protective layer. The wheel seat is arranged on the plate body, the wheel body is rotatably connected to the wheel seat, and the protective layer is arranged to cover the wheel body.

[0008] Preferably, a plurality of reinforcing beams are arranged on the plate body, and the plurality of reinforcing beams are fixedly connected below the plate body, and the plurality of reinforcing beams cross and are arranged in a net shape.

[0009] On the other hand, the present utility model further provides a waterproof structure for a lifting hole, which includes a waterproof sill arranged at the lifting hole of the inspection well and the above-mentioned labor-saving waterproof cover plate arranged above the lifting hole. The waterproof sill is arranged around the lifting hole, and the waterproof cover plate is slidably arranged above the lifting hole through support wheels and guide wheels. The guide wheels are arranged outside the waterproof sill, and the plate body of the waterproof cover plate completely covers the lifting hole.

[0010] Furthermore, a locking mechanism is further included, and the locking mechanism is arranged on the side adjacent to the support wheel.

[0011] The locking mechanism includes a first lock seat, a second lock seat and a lock tongue. The first lock seat is fixedly connected to the plate body, the second lock seat is arranged on the waterproof sill, the lock tongue is slidably connected to the first lock seat in the vertical direction, a lock hole is arranged on the second lock seat in the vertical direction, a first guiding inclined surface is arranged at the lower end of the lock tongue, and a second guiding inclined surface is arranged on the second lock seat.

[0012] Furthermore, two first guiding inclined surfaces are arranged, the two first guiding inclined surfaces are arranged in an inverted V shape, and the two first guiding inclined surfaces are arranged in sequence along the sliding direction of the waterproof cover plate.

[0013] Two second guiding inclined surfaces are arranged, the two second guiding inclined surfaces are arranged in a V shape on both sides of the lock hole, and the two second guiding inclined surfaces are arranged in sequence along the sliding direction of the waterproof cover plate.

[0014] The top surface of the second lock seat at the lock hole protrudes above the top surface of the waterproof sill.

[0015] Preferably, the locking mechanism further includes a lever, one end of the lever is horizontally fixedly connected to the lock tongue, and the other end of the lever is arranged to protrude outwards.

[0016] Preferably, a locking mechanism is further included, and the locking mechanism is arranged on the side adjacent to the support wheel.

[0017] The locking mechanism includes a first lock plate, a second lock plate and a chain lock. The first lock plate is fixedly connected to the plate body, the second lock plate is fixedly connected to the waterproof sill, a first hole is provided on the first lock plate, a second hole is provided on the second lock plate, and when the waterproof cover plate is locked, the chain lock passes through the first hole and the second hole simultaneously.

[0018] Preferably, a support protection plate is arranged outside the waterproof sill, and the support protection plate is arranged between the waterproof sill and the guide wheel.

[0019] Applying the technical solution of the present utility model has the following beneficial effects:

[0020] In use, two sets of support wheels support the plate body on the platform of the inspection well from both sides of the plate body. Two sets of guide wheels cooperate with the waterproof sill for horizontal limiting. Under the action of the support wheels and the guide wheels, the support wheels are in rolling contact with the platform of the inspection well, and the plate body is supported by the support wheels. The plate body can be moved on the platform of the inspection well by manual pushing; the guide wheels are in rolling contact with the side wall of the waterproof sill, so as to guide the horizontal position of the plate body, make the plate body move along the waterproof sill, and make the plate body accurately reach above the inspection well to cover the lifting opening. Through the arrangement of the support wheels and the guide wheels, the plate body can be easily moved away from or covered above the lifting opening by pushing the plate body, that is, the lifting hole can be opened or closed without using special hoisting equipment such as cranes or derricks, greatly saving the production and operation costs.

[0021] In addition to the purposes, features and advantages described above, the present utility model has other purposes, features and advantages. The following will refer to Figures 1 - 8 for a further detailed description of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0023] Figure 1 is a schematic diagram of the overall structure of a labor-saving waterproof cover plate of the utility model of this application;

[0024] Figure 2 is a partially enlarged schematic diagram of a labor-saving waterproof cover plate of the utility model of this application;

[0025] Figure 3 is one of the internal structure schematic diagrams of a lifting hole waterproof structure of the utility model of this application;

[0026] Figure 4 is Figure 3 an enlarged view of part A in

[0027] Figure 5 is a schematic diagram of the overall structure of a lifting hole waterproof structure of the utility model of this application;

[0028] Figure 6 is the other internal structure schematic diagram of a lifting hole waterproof structure of the utility model of this application;

[0029] Figure 7 is an internal structure schematic diagram of a locking structure in a lifting hole waterproof structure of the utility model of this application;

[0030] Figure 8This is a schematic diagram of the overall structure of the locking structure in another embodiment of the waterproof structure of the lifting hole of the utility model of the present application.

[0031] Among them, 1. Plate body; 11. Reinforcing beam; 2. Support wheel; 21. Wheel seat; 22. Wheel body; 23. Protective layer; 3. Guide wheel; 4. Waterproof sill; 41. Support protection plate; 5. Locking mechanism; 51. First lock seat; 52. Second lock seat; 521. Lock hole; 522. Second guide slope; 53. Lock tongue; 531. First guide slope; 54. Lever; 55. First lock plate; 551. First hole; 56. Second lock plate; 561. Second hole; 57. Chain lock. Detailed implementation mode

[0032] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below, and preferred embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0034] Embodiment:

[0035] See Figures 1 - 2 , this embodiment provides a labor-saving waterproof cover plate, including a plate body 1, support wheels 2 and guide wheels 3. Multiple support wheels 2 are in a group, and two groups of support wheels 2 are arranged. The two groups of support wheels 2 are respectively arranged at both ends of the plate body 1, and the support wheels 2 are all arranged at the lower part of the plate body 1; multiple guide wheels 3 are in a group, and two groups of guide wheels 3 are arranged on the plate body 1 and are located at both ends in the same position as the support wheels 2, and the two groups of guide wheels 3 are all arranged towards the inside of the plate body 1.

[0036] Specifically, taking four support wheels 2 as an example, the four support wheels 2 are divided into two groups, with two support wheels 2 in a group. The support wheels 2 in the same group are installed at the lower part of the same side of the waterproof cover plate (the labor-saving waterproof cover plate is abbreviated as the waterproof cover plate). The support wheels 2 are directional wheels, and the rolling directions of all the support wheels 2 are the same. In some embodiments, the support wheels 2 can also be universal wheels or other rollers that can change directions.

[0037] It should be noted that the waterproof cover plate is used to cover the lifting opening of the inspection well, so as to cover the lifting hole and prevent water from entering the inspection room when it rains. A waterproof sill 4 is arranged around the wellhead of the inspection well, and the waterproof cover plate completely covers the waterproof sill 4.

[0038] It can be understood that during use, the support wheel 2 is supported on the platform of the inspection well, and the plate body 1 is supported by the support wheel 2. By pushing the plate body 1, the guide wheels 3 on both sides of the plate body 1 are in contact with the outer wall of the waterproof sill 4. The plate body 1 is guided by the guide wheels 3, so that the plate body 1 moves along the waterproof sill 4 and completely covers the lifting hole, thereby realizing the covering of the lifting hole and preventing rainwater from entering. Through the arrangement of the support wheel 2 and the guide wheel 3, the plate body 1 can be easily moved away from or covered above the lifting opening by pushing the plate body 1 to move, that is, the lifting hole can be opened or closed without using special hoisting equipment such as a crane or a hoist, greatly saving the production and operation costs.

[0039] Preferably, the plate body 1 is square, and two groups of support wheels 2 are arranged on two opposite sides of the plate body 1, and two groups of guide wheels 3 are also respectively arranged on the same two sides as the support wheels 2.

[0040] It can be understood that the square plate body 1 has a simple process, is easier to manufacture and produce, and is beneficial to reducing production costs. The two groups of guide wheels 3 and the two groups of support wheels 2 are both installed on the short side of the plate body 1. By pushing the plate body 1 along the short side direction of the plate body 1, the plate body 1 can be smoothly pushed to move above the inspection well to realize the opening or closing of the lifting hole. Of course, the support wheel 2 and the guide wheel 3 can also be installed on the long side of the square plate body 1, and the plate body 1 can be opened or closed by pushing along the side.

[0041] Furthermore, the support wheel 2 includes a wheel seat 21, a wheel body 22 and a protective layer 23. The wheel seat 21 is arranged on the plate body 1, the wheel body 22 is rotatably connected to the wheel seat 21, and the protective layer 23 is arranged to cover the wheel body 22.

[0042] It can be understood that the wheel seat 21 is detachably connected to the plate body 1 by means of bolt connection. When the support wheel 2 is supported on the inspection well, the protective layer 23 is located between the wheel body 22 and the upper surface of the inspection well. During the rolling process of the support wheel 2, the upper surface of the inspection well is protected by the protective layer 23 to prevent the wheel body 22 from damaging the inspection well, and at the same time, the wheel body 22 is also protected to prevent the wheel body 22 from being damaged. The protective layer 23 is made of polyurethane material. In other embodiments, the material of the protective layer 23 can also be elastic materials such as rubber, silica gel, and plastic. In some embodiments, the wheel seat 21 can also be fixedly connected to the plate body 1 by welding.

[0043] Preferably, a plurality of reinforcing beams 11 are arranged on the plate body 1. The plurality of reinforcing beams 11 are fixedly connected below the plate body 1, and the plurality of reinforcing beams 11 are cross-arranged in a net shape.

[0044] It can be understood that by arranging the strengthening beam 11, the overall rigidity of the plate body 1 is strengthened, the anti-deformation ability of the plate body 1 is enhanced, and the plate body 1 is prevented from undergoing large deformation under the action of gravity.

[0045] On the other hand, referring to Figures 3 - 8 , the present utility model further provides a waterproof structure for a lifting hole, which includes a waterproof sill 4 arranged at the lifting hole of the inspection well and the above-mentioned labor-saving waterproof cover plate arranged above the lifting hole. The waterproof sill 4 is arranged around the lifting hole, and the waterproof cover plate is slidably arranged above the lifting hole through the support wheels 2 and the guide wheels 3. The guide wheels 3 are arranged outside the waterproof sill 4, and the plate body 1 of the waterproof cover plate completely covers the lifting hole.

[0046] It can be understood that by completely covering the lifting hole with the plate body 1, rainwater is prevented from entering the lifting hole. Through the arrangement of the waterproof sill 4, rainwater is prevented from seeping in from the wellhead, further preventing rainwater from entering the lifting hole. During operation, the support wheels 2 support the plate body 1, and the plate body 1 is guided by abutting the outer wall of the waterproof sill 4 through the guide wheels 3, so that the waterproof cover plate can move along the edge of the waterproof sill 4, enabling the plate body 1 to accurately cover above the lifting hole. The opening and closing of the waterproof cover plate can be completed without using a lifting mechanism such as a crane, which is convenient to operate and saves the construction and operation costs. In addition, through the combined arrangement of the support wheels 2 and the guide wheels 3, no embedded guide rails are required, which is convenient for later maintenance. Moreover, the guide wheels 3 and the support wheels 2 are both hidden under the plate body 1. When it rains, the rainwater cannot reach the support wheels 2 and the guide wheels 3, and it is not easy to cause the support wheels 2 and the guide wheels 3 to rust.

[0047] Furthermore, a locking mechanism 5 is further included. The locking mechanism 5 is arranged on the side adjacent to the support wheels 2. The locking mechanism 5 includes a first lock seat 51, a second lock seat 52 and a lock tongue 53. The first lock seat 51 is fixedly connected to the plate body 1, the second lock seat 52 is arranged on the waterproof sill 4, the lock tongue 53 is slidably connected to the first lock seat 51 in the vertical direction, a lock hole 521 is arranged on the second lock seat 52 in the vertical direction, a first guiding inclined surface 531 is arranged at the lower end of the lock tongue 53, and a second guiding inclined surface 522 is arranged on the second lock seat 52.

[0048] It can be understood that when the plate body 1 moves to directly above the lifting hole, it is necessary to position the waterproof cover plate so that the waterproof cover plate is positioned above the lifting hole. Through the arrangement of the locking mechanism 5, when the plate body 1 moves to above the lifting hole, the locking tongue 53 and the first locking seat 51 move together with the plate body 1. As the movement progresses, the first guiding inclined surface 531 on the locking tongue 53 contacts the second inclined surface on the second locking seat 52. As the plate body 1 continues to move, the locking tongue 53 moves upward under the pushing action of the second guiding inclined surface 522 until the locking tongue 53 moves directly above the locking hole 521. At this time, the locking tongue 53 loses support and, under the action of gravity, the locking tongue 53 is inserted into the locking hole 521, thereby locking the position of the plate body 1.

[0049] Further, two first guiding inclined surfaces 531 are arranged, and the two first guiding inclined surfaces 531 are arranged in an inverted V shape, and the two first guiding inclined surfaces 531 are arranged in sequence along the sliding direction of the waterproof cover plate;

[0050] Two second guiding inclined surfaces 522 are arranged, and the two second guiding inclined surfaces 522 are arranged in a V shape on both sides of the locking hole 521, and the two second guiding inclined surfaces 522 are arranged in sequence along the sliding direction of the waterproof cover plate;

[0051] The top surface of the second locking seat 52 at the locking hole 521 protrudes above the top surface of the waterproof sill 4.

[0052] It can be understood that through such an arrangement method, the plate body 1 can be pushed into and locked from any one of the two inclined surfaces where the V shape is located, broadening the way for the waterproof cover plate to move and be locked.

[0053] In this embodiment, the locking tongue 53 is a square column, and a counterweight is arranged on the top of the locking tongue 53. The counterweight is used to increase the self-weight of the locking tongue 53, so that the locking tongue 53 is faster and more stable when locking. A vertical square hole is provided on the first locking seat 51, and the locking tongue 53 is vertically slidably connected in the vertical square hole. The cooperation of the square column and the square hole prevents the locking tongue 53 from rotating, so that the first guiding inclined surface 531 and the second guiding inclined surface 522 can be smoothly abutted. In some embodiments, the locking tongue 53 can also be cylindrical. In these embodiments, the second guiding inclined surface 522 is actually a conical surface, which can also play a guiding role to smoothly lock the locking tongue 53 into the locking hole 521 for positioning.

[0054] Preferably, the locking mechanism 5 further includes a lever 54. One end of the lever 54 is horizontally fixedly connected to the locking tongue 53, and the other end of the lever 54 is arranged to project outwards.

[0055] It can be understood that when the lock tongue 53 needs to be unlocked, it is necessary to manually pull out the lock tongue 53 from the lock hole 521. By setting the lever 54, the lock tongue 53 can be easily toggled upward, so that the lock tongue 53 is removed from the lock hole 521 to achieve unlocking. The setting of the lever 54 makes unlocking easier.

[0056] As a preferred embodiment of the present application, it further includes a locking mechanism 5. The locking mechanism 5 is arranged on the side adjacent to the support wheel 2. The locking mechanism 5 includes a first lock plate 55, a second lock plate 56 and a chain lock 57. The first lock plate 55 is fixedly connected to the plate body 1, the second lock plate 56 is fixedly connected to the waterproof sill 4. A first hole 551 is provided on the first lock plate 55, and a second hole 561 is provided on the second lock plate 56. When the waterproof cover plate is locked, the chain lock 57 passes through the first hole 551 and the second hole 561 at the same time.

[0057] It can be understood that after the plate body 1 is pushed to cover the lifting hole, the first hole 551 on the first lock plate 55 and the second hole 561 on the second lock plate 56 are aligned, and the chain lock 57 passes through the first hole 551 and the second hole 561 in sequence. Since the second lock plate 56 is fixedly connected to the waterproof sill 4 and its position cannot move, the chain lock 57 is used to restrict the first lock seat 51 from moving relative to the second lock seat 52, thereby restricting the movement of the plate body 1 and achieving locking of the plate body 1.

[0058] Preferably, a support protection plate 41 is arranged outside the waterproof sill 4. The support protection plate 41 is arranged between the waterproof sill 4 and the guide wheel 3.

[0059] It can be understood that the waterproof sill 4 is protected by the support protection plate 41 to prevent the guide wheel 3 from damaging the side wall of the waterproof sill 4. Secondly, the support protection plate 41 plays a supporting and guiding role for the guide wheel 3 during the guiding process. The support protection plate 41 can be fixed to the outside of the waterproof sill 4 by embedding, so that the connection between the support protection plate 41 and the waterproof sill 4 is closer. The support protection plate 41 is made of angle steel or channel steel. Of course, in some other embodiments, the support protection plate 41 can also be made of other structures and materials.

[0060] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A labor-saving waterproof cover plate, characterized in that: It comprises a plate body (1), a support wheel (2) and a guide wheel (3), wherein a plurality of the support wheels (2) form a group, the support wheels (2) are arranged in two groups, the two groups of support wheels (2) are arranged at the two ends of the plate body (1) respectively, and the support wheels (2) are arranged at the lower part of the plate body (1); A plurality of the guide wheels (3) form a group. The guide wheels (3) are arranged in two groups. The two groups of guide wheels (3) are arranged on the plate body (1) and are located at the same two ends as the support wheels (2). Both groups of guide wheels (3) are arranged toward the inside of the plate body (1).

2. The labor-saving waterproof cover plate according to claim 1, characterized in that: The plate body (1) is square, the two groups of support wheels (2) are arranged on two opposite sides of the plate body (1), and the two groups of guide wheels (3) are also arranged on the same two sides as the support wheels (2).

3. The labor-saving waterproof cover plate according to claim 1, characterized in that: The supporting wheel (2) comprises a wheel seat (21), a wheel body (22) and a protective layer (23); the wheel seat (21) is arranged on the plate body (1); the wheel body (22) is rotatably connected to the wheel seat (21); and the protective layer (23) is arranged to cover the wheel body (22).

4. The labor-saving waterproof cover plate according to claim 1, characterized in that: A plurality of reinforcing beams (11) are arranged on the plate body (1); the plurality of reinforcing beams (11) are fixedly connected below the plate body (1), and the plurality of reinforcing beams (11) are arranged in a cross-net shape.

5. A waterproof structure for hanging holes, characterized in that: It comprises a waterproof sill (4) arranged at a hanging hole in a manhole and a labor-saving waterproof cover plate according to any one of claims 1 to 4 arranged above the hanging hole, wherein the waterproof sill (4) is arranged around the hanging hole, the waterproof cover plate is slidably arranged above the hanging hole through a supporting wheel (2) and a guide wheel (3), the guide wheel (3) is arranged on the outside of the waterproof sill (4), and the plate body (1) of the waterproof cover plate completely covers the hanging hole.

6. The waterproof structure of a hanging hole according to claim 5, characterized in that: It also includes a locking mechanism (5), which is arranged on an edge adjacent to the supporting wheel (2). The locking mechanism (5) comprises a first locking seat (51), a second locking seat (52) and a locking tongue (53); the first locking seat (51) is fixedly connected to the plate body (1); the second locking seat (52) is arranged on the waterproof sill (4); the locking tongue (53) is slidably connected to the first locking seat (51) in a vertical direction; a locking hole (521) is arranged on the second locking seat (52) in a vertical direction; a first guiding inclined surface (531) is arranged at the lower end of the locking tongue (53); and a second guiding inclined surface (522) is arranged on the second locking seat (52).

7. The waterproof structure of a hanging hole according to claim 6, characterized in that: Two first guiding inclined surfaces (531) are arranged, the two first guiding inclined surfaces (531) are arranged in an inverted figure eight shape, and the two first guiding inclined surfaces (531) are arranged in sequence along the sliding direction of the waterproof cover plate; Two second guiding inclined surfaces (522) are arranged, and the two second guiding inclined surfaces (522) are arranged in an eight-shaped shape on both sides of the lock hole (521), and the two second guiding inclined surfaces (522) are arranged in sequence along the sliding direction of the waterproof cover plate; The top surface of the second lock seat (52) located at the lock hole (521) is arranged to protrude from the top surface of the waterproof sill (4).

8. The waterproof structure of a hanging hole according to claim 6, characterized in that: The locking mechanism (5) further comprises a lever (54), one end of which is horizontally fixedly connected to the locking tongue (53), and the other end of which is cantilevered outwards.

9. The waterproof structure of a hanging hole according to claim 5, characterized in that: It also includes a locking mechanism (5), which is arranged on an edge adjacent to the supporting wheel (2). The locking mechanism (5) comprises a first locking plate (55), a second locking plate (56) and a chain lock (57); the first locking plate (55) is fixedly connected to the plate body (1); the second locking plate (56) is fixedly connected to the waterproof sill (4); the first locking plate (55) is provided with a first hole (551); the second locking plate (56) is provided with a second hole (561); when the waterproof cover plate is locked, the chain lock (57) passes through the first hole (551) and the second hole (561) at the same time.

10. The waterproof structure of a hanging hole according to claim 5, characterized in that: A supporting protective plate (41) is arranged on the outer side of the waterproof sill (4), and the supporting protective plate (41) is arranged between the waterproof sill (4) and the guide wheel (3).

Citation Information

Patent Citations

  • A lifting hole cover with an electric tilting structure

    CN113802958B