Reservoir caving protective door structure

By designing the automatic drainage reservoir caving protective door structure, the troublesome problem in the existing technology is solved, and the convenience of automatic discharge and use of water accumulation in the cave is achieved.

CN222976729UActive Publication Date: 2025-06-13HUNAN TIANGAO CONSTR ENG CO LTD
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Patent Information

Application Number
CN202421559277.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-03
Publication Date
2025-06-13
Estimated Expiration
2034-07-03

AI Technical Summary

Technical Problem

The existing reservoir cave protection door is more troublesome when used, and the L-shaped rod and turntable need to be manually debugged to discharge the accumulated water.

Method used

A protective door structure including a door frame, door body, and drainage structure is designed. The drainage structure consists of a bottom box, a drainage plate, an opening and closing plate and a rectangular float. When the door body is closed, the water flows into the bottom box cavity for drainage.

Benefits of technology

It realizes the automatic discharge of water accumulated in the cave, simplifies the use process, and does not require manual debugging of the device, making it more convenient to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water conservancy, and discloses a reservoir caving protective door structure which comprises a door frame, and the wall face of the door frame is rotationally connected with a door body. The drainage structure can automatically drain accumulated water in the reservoir exploration hole and comprises a bottom box, a drainage plate, an opening and closing plate and a rectangular buoy, the bottom box is fixedly connected to the bottom of the door frame and is a hollow rectangular box with the rear wall face open, the drainage plate is fixedly connected into a cavity of the bottom box, and the opening and closing plate is slidably connected to the rear wall face of the drainage plate. The rectangular buoy is slidably connected into the cavity of the bottom box, the opening and closing plate and the rectangular buoy are located on the same horizontal line, accumulated water in the caving can be automatically drained by arranging the drainage structure, and the drainage structure automatically guides water into the cavity of the bottom box by abutting against the abutting rod when the door body is closed, so that automatic drainage is achieved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of water conservancy, and specifically relates to a protective door structure for a reservoir exploration hole. Background Technique

[0002] A reservoir generally refers to a water conservancy project building for storing floodwater and regulating water flow, which can be used for irrigation, power generation, flood control and fish farming.

[0003] The prior art (publication number: CN218324600U) discloses a protective door for a reservoir exploration hole, belonging to the field of hydropower construction. Its technical solution is as follows: it includes a door frame arranged at the entrance of the exploration hole, a narrow plate is fixedly arranged on one side inside the door frame, and a door panel hinged to the narrow plate is arranged on the other side inside the door frame.

[0004] In the prior art, after the door is closed, the rotatable turntable arranged on the door is rotated, so that when there is a lot of accumulated water in the exploration hole, the float can be lifted, thereby driving the L-shaped rod to move the sliding plate on the door upward. When the sliding plate moves upward, the U-shaped groove at the bottom of the door through which water can pass discharges the water from the exploration hole. Although the prior art can discharge the accumulated water in the exploration hole, in the prior art, attention needs to be paid to the position of the L-shaped rod every time the door is closed, otherwise the L-shaped rod will be damaged when the door is closed, and after each closing of the door, the turntable needs to be rotated to ensure that the float can start to trigger the sliding of the sliding plate. Therefore, the prior art is relatively troublesome to use.

[0005] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0006] In order to solve the technical problem that the above prior art is relatively troublesome to use, the basic concept of the technical solution adopted by the present utility model is as follows:

[0007] A protective door structure for a reservoir exploration hole, including: a door frame, and a door body is rotatably connected to the wall surface of the door frame;

[0008] A drainage structure, which can automatically discharge the accumulated water in the reservoir exploration hole. The drainage structure includes: a bottom box, a drainage plate, an opening and closing plate and a rectangular float. The bottom box is fixedly connected to the bottom of the door frame. The bottom box is a hollow rectangular box with an open rear wall surface. The drainage plate is fixedly connected to the cavity of the bottom box. The opening and closing plate is slidably connected to the rear wall surface of the drainage plate. The rectangular float is slidably connected to the cavity of the bottom box. The opening and closing plate and the rectangular float are on the same horizontal line.

[0009] As a preferred embodiment of the present utility model, the opening and closing plate slides between the front wall surfaces of the drainage plate and the cavity of the bottom box, and the rectangular float is located on the rear wall surface of the opening and closing plate.

[0010] As a preferred embodiment of the present utility model, the drainage structure further includes a trigger rod, a limiting plate, side grooves, a first drainage hole, and a connecting rod. The trigger rod is fixedly connected to the inner wall surface of the cavity of the bottom box, the limiting plate is also fixedly connected to the cavity of the bottom box, the side grooves are opened on the two side wall surfaces of the limiting plate, the rectangular float is slidably connected between the partition plate and the limiting plate, the first drainage hole is penetrated and opened on the wall surface of the drainage plate, and the connecting rod is fixedly connected to the front wall surface of the rectangular float.

[0011] As a preferred embodiment of the present utility model, a plurality of the trigger rods are uniformly arranged in the cavity of the bottom box, the first drainage hole is in a circular opening shape, a plurality of the first drainage holes are uniformly opened at a lower position on the wall surface of the drainage plate, a second drainage hole with the same number as the first drainage hole is opened on the front wall surface of the bottom box, the first drainage holes on the wall surface of the bottom box and the first drainage holes on the wall surface of the drainage plate are on the same horizontal line, the opening and closing plate can block all the first drainage holes on the wall surface of the bottom box when it is at the bottom of the cavity of the bottom box, the connecting rods are symmetrically fixedly connected to the rear wall surface of the opening and closing plate, the symmetric connecting rods can vertically slide in the symmetric side grooves, the front wall surface of the connecting rod is fixedly connected to the rear wall surface of the opening and closing plate, the rear wall surface of the connecting rod is fixedly connected to the rectangular float, rectangular grooves adapted to the sliding of the connecting rods are opened at both sides of the drainage plate, and the connecting rods can slide in the side grooves and the rectangular grooves on the wall surface of the drainage plate at the same time.

[0012] As a preferred embodiment of the present utility model, the drainage structure further includes a rear box, a partition plate, a water leakage plate, an opening and closing plate, a resisting rod, and a resisting block. The rear box is fixedly connected to the rear wall surface of the bottom box, the rear box is a hollow rectangular box with an open front wall surface and a top, the partition plate is fixedly connected to the middle section of the cavity of the rear box, the partition plate can divide the cavity of the rear box into two separate upper and lower spaces, the water leakage plate is fixedly connected to the top of the rear box, the opening and closing plate is slidably connected to the top of the water leakage plate, the resisting rod is fixedly connected to the top of the opening and closing plate, and the resisting block is fixedly connected to the rear wall surface of the door body.

[0013] As a preferred embodiment of the present utility model, the inner space of the upper half section of the rear box is communicated with the rear wall surface of the bottom box and the cavity of the bottom box, rectangular rods are symmetrically and fixedly connected to both sides of the top opening of the rear box, the opening and closing plate slides between the top of the water leakage plate and the bottom of the symmetric rectangular rods, the rear wall surface of the opening and closing plate is elastically connected to the inner wall surface of the cavity of the rear box through a spring, a plurality of third drainage holes are uniformly opened on the top of the water leakage plate, the position of the water leakage plate is aligned with the inner part of the upper half section of the rear box, and the position of the resisting rod is aligned with the resisting block.

[0014] As a preferred embodiment of the present utility model, a cleaning groove is opened on the top of the bottom box, fixing grooves are symmetrically opened at both sides of the cleaning groove on the top of the bottom box, a baffle is clamped in the cleaning groove, and connecting blocks are symmetrically and fixedly connected to both sides of the baffle.

[0015] As a preferred embodiment of the present utility model, the cleaning groove is penetrated and opened at the top of the bottom box. The cleaning groove can be adapted to the size of the baffle. The connecting block is threadedly connected in the fixing groove through bolts, and the top surfaces of the baffle, the connecting block and the bottom box are flush.

[0016] The present utility model has the following beneficial effects compared with the prior art:

[0017] 1. By setting the drainage structure, the accumulated water in the exploration hole can be automatically drained. When the door body is closed, the drainage structure automatically guides the water to the cavity of the bottom box through the contact with the contact rod, so as to automatically drain the water. During this process, there is no need to manually debug the device. Therefore, compared with the prior art, this solution is more convenient to use.

[0018] 2. By setting the top of the bottom box that can be opened, it is more convenient for maintenance or cleaning in the cavity of the bottom box, because only the baffle needs to be removed by the bolts on the wall surface of the connecting block, and the installation steps are the same. Therefore, the bottom box is convenient for the maintenance and cleaning of the device.

[0019] The following further describes the specific implementation manners of the present utility model in detail with reference to the drawings. Description of the Drawings

[0020] In the drawings:

[0021] Figure 1 is the front perspective view of the present utility model;

[0022] Figure 2 is the rear perspective view of the present utility model;

[0023] Figure 3 is the exploded view of the structure inside the bottom box of the present utility model;

[0024] Figure 4 is the exploded view of the structure of the rear box wall surface of the present utility model;

[0025] Figure 5 is the exploded view of the top structure of the bottom box of the present utility model.

[0026] In the figure: 20, door frame; 21, door body; 22, cleaning groove; 23, fixing groove; 24, baffle; 25, connecting block; 30, bottom box; 31, trigger rod; 32, limiting plate; 33, side groove; 34, drainage plate; 35, first drainage hole; 36, rectangular float; 37, opening and closing plate; 38, connecting rod; 40, rear box; 41, partition plate; 42, water leakage plate; 43, opening and closing plate; 44, contact rod; 45, contact block; 50, second drainage hole; 51, third drainage hole. Specific Embodiments

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.

[0028] As Figure 1 and Figure 2 shown, a protective door structure for a reservoir exploration tunnel includes a door frame 20, and a door body 21 is rotatably connected to the wall surface of the door frame 20; a door lock is installed on the door body 21 to lock the flipping of the door body 21. This is an existing technology and will not be elaborated here.

[0029] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a drainage structure can automatically drain the accumulated water in the reservoir exploration tunnel. The drainage structure includes: a bottom box 30, a drainage plate 34, an opening and closing plate 37, and a rectangular float 36. The bottom box 30 is fixedly connected to the bottom of the door frame 20. The bottom box 30 is a hollow rectangular box with an open rear wall surface. The drainage plate 34 is fixedly connected to the cavity of the bottom box 30. The opening and closing plate 37 is slidably connected to the rear wall surface of the drainage plate 34. The rectangular float 36 is slidably connected to the cavity of the bottom box 30. The opening and closing plate 37 and the rectangular float 36 are on the same horizontal line.

[0030] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the opening and closing plate 37 slides between the drainage plate 34 and the front wall surface of the bottom box 30 cavity, and the rectangular float 36 is located on the rear wall surface of the opening and closing plate 37. The drainage structure also includes a trigger rod 31, a limit plate 32, a side groove 33, a first drainage hole 35 and a connecting rod 38. The trigger rod 31 is fixedly connected to the cavity wall surface of the bottom box 30, and the limit plate 32 is also fixedly connected to the cavity of the bottom box 30. The side groove 33 is opened on both side walls of the limit plate 32. The rectangular float 36 is slidably connected between the partition plate 41 and the limit plate 32. The first drainage hole 35 penetrates the wall surface opened on the drainage plate 34. The connecting rod 38 is fixedly connected to the front wall surface of the rectangular float 36. The trigger rod 31 is evenly arranged in the cavity of the bottom box 30. There are multiple first drainage holes 35, which are circular openings. Multiple first drainage holes 35 are evenly opened at the lower position of the wall surface of the drainage plate 34. The front wall surface of the bottom box 30 is opened with second drainage holes 50 with the same number as the first drainage holes 35. The first drainage holes 35 on the wall surface of the bottom box 30 and the first drainage holes 35 on the wall surface of the drainage plate 34 are on the same horizontal line. When the opening and closing plate 37 is at the bottom of the bottom box 30 cavity, all the first drainage holes 35 on the wall surface of the bottom box 30 can be blocked. The connecting rod 38 is symmetrically fixedly connected to the rear wall surface of the opening and closing plate 37. The symmetrical connecting rod 38 can slide vertically in the symmetrical side groove 33. The front wall surface of the connecting rod 38 is fixedly connected to the rear wall surface of the opening and closing plate 37. The rear wall of the rod 38 is fixedly connected to the rectangular float 36, and rectangular grooves adapted to the sliding of the connecting rod 38 are opened on both sides of the drainage plate 34. The connecting rod 38 can slide in the side grooves 33 and the rectangular grooves on the wall of the drainage plate 34 at the same time. The drainage structure also includes a rear box 40, a partition plate 41, a leaking plate 42, an opening and closing plate 43, a contact rod 44 and a contact block 45. The rear box 40 is fixedly connected to the rear wall of the bottom box 30. The rear box 40 is a hollow rectangular box with a front wall and an open top. The partition plate 41 is fixedly connected to the middle section of the cavity of the rear box 40. The partition plate 41 can divide the cavity of the rear box 40 into two separate spaces above and below. The leaking plate 42 is fixedly connected to the top of the rear box 40. The plate 43 is slidably connected to the top of the water leakage plate 42, the resistance rod 44 is fixedly connected to the top of the opening and closing plate 43, and the resistance block 45 is fixedly connected to the rear wall of the door body 21. The space in the upper half of the cavity of the rear box 40 is connected to the cavity of the bottom box 30 from the rear wall of the bottom box 30. Rectangular rods are symmetrically fixedly connected to the two sides of the top opening of the rear box 40. The opening and closing plate 43 slides between the top of the water leakage plate 42 and the bottom of the symmetrical rectangular rods. The rear wall of the opening and closing plate 43 is elastically connected to the inner wall of the cavity of the rear box 40 through a spring. A plurality of third drainage holes 51 are evenly opened on the top of the water leakage plate 42. The position of the water leakage plate 42 is aligned with the cavity of the upper half of the rear box 40, and the position of the resistance rod 44 is aligned with the resistance block 45.

[0031] When in use, the device is installed at the entrance of the cave, and the tops of the bottom box 30 and the rear box 40 are flush with the ground in the cave. When the door body 21 is closed, the resistance block 45 will be driven to resist the resistance rod 44 backwards, and the resistance rod 44 will drive the opening and closing plate 43 to move at the same time. After the opening and closing plate 43 moves to the rearmost rear of the top of the rear box 40, it will stop moving. At this time, the spring in the cavity of the rear box 40 will be compressed, and the top of the leaking plate 42 will be exposed to the ground. At this time, if there is accumulated water in the cave, it will flow from the third drainage hole 51 on the wall of the leaking plate 42 to the cavity of the rear box 40, and flow from the cavity of the rear box 40 to the cavity of the bottom box 30. At this time, water will accumulate in the cavity of the bottom box 30, and the water level line in the cavity of the bottom box 30 will rise with the accumulated water. When the water level line in the cavity of the bottom box 30 rises, the rectangular float 36 will also move vertically upward between the trigger rod 31 and the limit plate 32, and the rectangular float 36 will be driven by the connecting rod 38 when moving. When the door 21 is turned over and opened, the abutment block 45 stops abutting the abutment rod 44, and the spring in the rear box 40 cavity pushes the opening and closing plate 43 to the top of the water leakage plate 42 and blocks the top of the water leakage plate 42.

[0032] To sum up, by setting up a drainage structure, the accumulated water in the exploration cave can be automatically discharged. The drainage structure automatically guides the water into the cavity of the bottom box 30 by the door body 21 through the resistance rod 44 when it is closed, thereby automatically draining the water. There is no need to manually debug the device in this process, so compared with the prior art, this solution is more convenient to use.

[0033] like Figure 2 and Figure 5 As shown, a cleaning groove 22 is provided at the top of the bottom box 30, and fixing grooves 23 are provided at symmetrical positions on both sides of the cleaning groove 22 on the top of the bottom box 30, a baffle 24 is clamped in the cleaning groove 22, and connecting blocks 25 are symmetrically fixedly connected on both sides of the baffle 24, the cleaning groove 22 is opened through the top of the bottom box 30, the cleaning groove 22 can adapt to the size of the baffle 24, the connecting block 25 is threadedly connected in the fixing groove 23 by bolts, and the baffle 24, the connecting block 25 and the top of the bottom box 30 are flush;

[0034] During specific use, remove the bolt at the top of the connecting block 25. At this time, the baffle 24 can be pulled out upward from the cleaning groove 22, and then the inside of the bottom box 30 can be manually cleaned;

[0035] In summary, by setting the top of the bottom box 30 to be openable, it is more convenient for maintenance or cleaning inside the bottom box 30, because only the bolt on the wall surface of the connecting block 25 of the baffle 24 needs to be removed. The installation steps are the same, so the bottom box 30 is convenient for the maintenance and cleaning of the device.

[0036] Working principle: Install the device at the position of the exploration hole entrance, and make the tops of the bottom box 30 and the rear box 40 flush with the ground inside the hole. When the door body 21 is closed, it will drive the contact block 45 to push the contact rod 44 backward. The contact rod 44 will drive the opening and closing plate 43 to move simultaneously. When the opening and closing plate 43 moves to the rearmost part of the top of the rear box 40, it will stop moving. At this time, the spring inside the rear box 40 will be compressed, and the top of the water leakage plate 42 will be exposed on the ground. If there is accumulated water in the hole at this time, it will flow from the third drain hole 51 on the wall surface of the water leakage plate 42 into the cavity of the rear box 40 and then flow from the cavity of the rear box 40 into the cavity of the bottom box 30. At this time, the water will accumulate in the cavity of the bottom box 30, and the water level line in the cavity of the bottom box 30 will rise with the accumulated water. When the water level line in the cavity of the bottom box 30 rises, the rectangular float 36 will also move vertically upward between the trigger rod 31 and the limit plate 32. The rectangular float 36 will drive the opening and closing plate 37 to move upward simultaneously when moving. The opening and closing plate 37 will slide between the first drain hole 35 and the inner wall surface of the cavity of the bottom box 30. When the opening and closing plate 37 is driven by the rectangular float 36 to slide to the uppermost part of the top of the bottom box 30, the opening and closing plate 37 will no longer block the first drain hole 35 on the wall surface of the drain plate 34 and the second drain hole 50 on the wall surface of the bottom box 30. At this time, the accumulated water in the cavity of the bottom box 30 will be discharged from the second drain hole 50 on the wall surface of the bottom box 30. When the water level line in the cavity of the bottom box 30 drops, the rectangular float 36 will drive the opening and closing plate 37 to return to the bottom of the cavity of the original bottom box 30 simultaneously, and the opening and closing plate 37 will re-block the first drain hole 35 on the wall surface of the drain plate 34 and the second drain hole 50 on the wall surface of the bottom box 30. When the door body 21 is flipped and opened, the contact block 45 will stop pushing the contact rod 44. At this time, the spring inside the rear box 40 will push the opening and closing plate 43 to the top of the water leakage plate 42 and block the top of the water leakage plate 42.

[0037] It is understood that the present utility model is described through some embodiments. Those skilled in the art will know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present utility model. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A reservoir cave protection door structure, characterized in that: include: A door frame (20), wherein a wall surface of the door frame (20) is rotatably connected to a door body (21); The drainage structure can automatically discharge the accumulated water in the reservoir exploration cave, and the drainage structure comprises: a bottom box (30), a drainage plate (34), an opening and closing plate (37) and a rectangular float (36). The bottom box (30) is fixedly connected to the bottom of the door frame (20), and the bottom box (30) is a hollow rectangular box with an open rear wall. The drainage plate (34) is fixedly connected to the cavity of the bottom box (30), the opening and closing plate (37) is slidably connected to the rear wall of the drainage plate (34), and the rectangular float (36) is slidably connected to the cavity of the bottom box (30), and the opening and closing plate (37) and the rectangular float (36) are on the same horizontal line.

2. The reservoir cave protection door structure according to claim 1 is characterized in that: The opening and closing plate (37) slides between the drainage plate (34) and the front wall surface of the bottom box (30) cavity, and the rectangular float (36) is located on the rear wall surface of the opening and closing plate (37).

3. The reservoir cave protection door structure according to claim 1 is characterized in that: The drainage structure further comprises a trigger rod (31), a limit plate (32), a side groove (33), a first drainage hole (35) and a connecting rod (38); the trigger rod (31) is fixedly connected to the inner wall surface of the cavity of the bottom box (30); the limit plate (32) is also fixedly connected to the cavity of the bottom box (30); the side groove (33) is provided on the wall surfaces on both sides of the limit plate (32); the rectangular float (36) is slidably connected between the partition plate (41) and the limit plate (32); the first drainage hole (35) penetrates the wall surface provided on the drainage plate (34); and the connecting rod (38) is fixedly connected to the front wall surface of the rectangular float (36).

4. The reservoir cave protection door structure according to claim 3 is characterized in that: The trigger rod (31) is evenly arranged with a plurality of first drainage holes (35) in the cavity of the bottom box (30); the first drainage holes (35) are in the shape of circular openings; a plurality of first drainage holes (35) are evenly opened at the lower position of the wall surface of the drainage plate (34); the front wall surface of the bottom box (30) is opened with second drainage holes (50) having the same number as the first drainage holes (35); the first drainage holes (35) on the wall surface of the bottom box (30) and the first drainage holes (35) on the wall surface of the drainage plate (34) are on the same horizontal line; and the opening and closing plate (37) can close the bottom of the cavity of the bottom box (30) when it is at the bottom of the cavity of the bottom box (30). All the first drainage holes (35) on the wall (30) are blocked, the connecting rod (38) is symmetrically fixedly connected to the rear wall of the opening and closing plate (37), the symmetrical connecting rod (38) can slide vertically in the symmetrical side groove (33), the front wall of the connecting rod (38) is fixedly connected to the rear wall of the opening and closing plate (37), the rear wall of the connecting rod (38) is fixedly connected to the rectangular float (36), and rectangular grooves adapted for sliding the connecting rod (38) are opened on both sides of the drainage plate (34), and the connecting rod (38) can slide in the side groove (33) and the rectangular groove on the wall of the drainage plate (34) at the same time.

5. The reservoir cave protection door structure according to claim 3 is characterized in that: The drainage structure further comprises a rear box (40), a partition plate (41), a water leakage plate (42), an opening and closing plate (43), a contact rod (44) and a contact block (45); the rear box (40) is fixedly connected to the rear wall of the bottom box (30); the rear box (40) is a hollow rectangular box with a front wall and an open top; the partition plate (41) is fixedly connected to the middle section of the cavity of the rear box (40); the partition plate (41) can separate the cavity of the rear box (40) into two separate spaces, the water leakage plate (42) is fixedly connected to the top of the rear box (40); the opening and closing plate (43) is slidably connected to the top of the water leakage plate (42); the contact rod (44) is fixedly connected to the top of the opening and closing plate (43); and the contact block (45) is fixedly connected to the rear wall of the door body (21).

6. The reservoir cave protection door structure according to claim 5 is characterized in that: The space in the upper half of the rear box (40) is connected to the cavity of the bottom box (30) from the rear wall surface of the bottom box (30); rectangular rods are symmetrically fixedly connected to the two sides of the top opening of the rear box (40); the opening and closing plate (43) slides between the top of the water leakage plate (42) and the bottom of the symmetrical rectangular rods; the rear wall surface of the opening and closing plate (43) is elastically connected to the wall surface of the cavity of the rear box (40) through a spring; a plurality of third drainage holes (51) are evenly opened on the top of the water leakage plate (42); the position of the water leakage plate (42) is aligned with the cavity of the upper half of the rear box (40); and the position of the abutment rod (44) is aligned with the abutment block (45).

7. The reservoir cave protection door structure according to claim 1 is characterized in that: The top of the bottom box (30) is provided with a cleaning groove (22), the top of the bottom box (30) is provided with fixing grooves (23) at symmetrical positions on both sides of the cleaning groove (22), a baffle (24) is clamped in the cleaning groove (22), and connecting blocks (25) are symmetrically fixedly connected to both sides of the baffle (24).

8. The reservoir cave protection door structure according to claim 7 is characterized in that: The cleaning groove (22) is opened through the top of the bottom box (30), and the cleaning groove (22) can adapt to the size of the baffle (24). The connecting block (25) is threadedly connected in the fixing groove (23) by bolts, and the baffle (24), the connecting block (25) and the top of the bottom box (30) are flush.

Citation Information

Patent Citations

  • Reservoir caving protective door

    CN218324600U