An explosion-proof protective structure for a dam anti-seepage wall

By designing a multi-layer explosion-proof protective structure on the dam's seepage-proof wall, the problem of the anti-seepage-proof wall being easily damaged when hit by a ship is solved, the guiding buffering and synchronous positioning function is realized, and the anti-seepage-proof wall is improved. Impact resistance.

CN118704402BActive Publication Date: 2025-02-18LIANYUNGANG WATER CONSERVANCY PLANNING & DESIGN INST CO LTD
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Patent Information

Application Number
CN202410901452.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-05
Publication Date
2025-02-18
Estimated Expiration
2044-07-05

AI Technical Summary

Technical Problem

The existing anti-seepage walls are easily damaged when hit by a ship, resulting in damage to their functions, and the integration of guided buffering and synchronous positioning cannot be achieved.

Method used

A explosion-proof protection structure for the anti-seepage wall of the dam was designed. By installing sandwich structures, exterior wall structures, support structures and front-mounting mechanisms on both sides of the anti-seepage wall, including contact parts, synchronization devices, limiting devices and support devices. , form a multi-level protection system.

Benefits of technology

Effectively prevent the steel collision between the ship and the anti-seepage wall. Through the coordination of the buffer spring and the plastic pipe, the impact force is reduced. Through the design of gears and support arms, guided buffering and synchronous positioning are realized to improve the impact resistance of the anti-seepage wall. ability.

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Abstract

The present invention relates to the technical field of water conservancy engineering, and specifically to an explosion-proof protective structure of a dam anti-seepage wall, comprising an anti-seepage wall structure, sandwich structures are fixedly installed on both sides of the anti-seepage wall structure, an outer wall structure is fixedly installed on the outer side of the sandwich structure away from the anti-seepage wall structure, a supporting structure is fixedly installed at the rear of the outer wall structure, a front block mechanism is fixedly installed in front of the outer wall structure, the front block mechanism comprises a contact component and a supporting device, the contact component can be slidably inserted on the front end of the supporting device, the contact component comprises a synchronization device, a positioning device is fixedly installed at the front end of the synchronization device, and a limiting device is fixedly installed at both ends of the synchronization device, the positioning device comprises a solar warning light, a supporting front baffle and a base, four solar warning lights are fixedly installed on the top of the supporting front baffle, and the base is fixedly installed on the bottom of the supporting front baffle. Through the setting of the front block mechanism, the purpose of the anti-seepage wall having the guided buffering and synchronized positioning functions is achieved.
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Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, in particular to an explosion-proof protective structure of a dam anti-seepage wall. Background Art

[0002] The anti-seepage wall is a continuous ground wall built in loose permeable layers or earth-rock dams (weirs) to prevent seepage. The anti-seepage wall technology originated in Europe in the 1950s. It has been widely used at home and abroad because of its reliable structure, good anti-seepage effect, adaptability to various ground conditions, simple construction and low cost, especially in dealing with dam foundation leakage, "soil flow" behind the dam, "pipe burst" and other hidden dangers of seepage deformation. In my country, anti-seepage walls are generally the first choice for anti-seepage treatment of water conservancy and hydropower covering layers and earth-rock cofferdams with anti-seepage pressure.

[0003] The explosion-proof protection device is a component that provides counter-protection for the surface of an object. By setting the explosion-proof protection device on the periphery of the object, it can prevent the object from being impacted by external energy and improve the safety of the object itself.

[0004] At present, when the existing anti-seepage wall is in use, the wall close to the upstream is in an exposed state and there are no blocking components on the wall. Therefore, when a ship loses control and collides with the dam, the anti-seepage wall may be damaged, causing damage to the function of the anti-seepage wall. Therefore, the existing anti-seepage wall cannot perform the integrated functions of guided buffering and synchronous positioning. Therefore, a device is needed to improve the above problem. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides an explosion-proof protection structure for a dam anti-seepage wall.

[0006] The technical solution adopted by the present invention to solve the technical problem is: an explosion-proof protective structure of a dam anti-seepage wall, comprising an anti-seepage wall structure, sandwich structures are fixedly installed on both sides of the anti-seepage wall structure, an outer wall structure is fixedly installed on the outer side of the sandwich structure away from the anti-seepage wall structure, a supporting structure is fixedly installed at the rear of the outer wall structure, and a front blocking mechanism is fixedly installed in front of the outer wall structure;

[0007] The front stop mechanism comprises a contact component and a support device, wherein the contact component can be slidably inserted into the front end of the support device;

[0008] The contact component comprises a synchronization device, a positioning device is fixedly installed at the front end of the synchronization device, and limiting devices are fixedly installed at both ends of the synchronization device;

[0009] The alignment device comprises a solar warning light, a supporting front baffle and a base, wherein four solar warning lights are fixedly mounted on the top of the supporting front baffle, the base is fixedly mounted on the bottom of the supporting front baffle, a plastic tube is fixedly mounted equidistantly on the front end of the supporting front baffle, two plastic barrels are fixedly mounted on the bottom end of the base, four movable rods are fixedly mounted on the rear end of the supporting front baffle, and a first rack is fixedly mounted on the top of the movable rod;

[0010] When the supporting front baffle moves toward the rear end, the first rack can be driven to pass under the gear, so that the supporting arm can rotate.

[0011] Specifically, the synchronization device includes a movable back frame, a support front plate and a support top frame, the two support front plates are fixedly installed in front of the two movable back frames, the support top frames are provided with two, and the support top frame is installed on the top of the movable back frame, the front end of the support front plate is fixedly installed with two support cavities, the rear end of the inner part of the support cavity is fixedly installed with a buffer spring, the front end of the support cavity is slidably plugged with a connecting rod, the inner part of the support top frame is rotatably installed with a support arm, the top ends of both sides of the support arm are fixedly installed with a reinforcing rib plate, the bottom of the side end of the support arm close to the support cavity is fixedly installed with a gear, the top of the movable back frame is fixedly installed with two alarms, and the alarm is fixedly installed with a button switch close to the front end of the gear;

[0012] When the supporting front baffle moves toward the rear end, the connecting rod can be driven to enter the interior of the supporting cavity, and then the connecting rod can drive the buffer spring to compress and deform.

[0013] Specifically, the limiting device includes a supporting side plate and an air cylinder, the air cylinder is arranged and installed inside the supporting side plate, a first piston rod is slidably inserted inside the front end of the air cylinder, a second piston rod is slidably inserted inside the rear end of the air cylinder, and a second rack is fixedly installed at the rear end of the second piston rod;

[0014] When the supporting front baffle moves toward the rear end, the first piston rod can be driven to enter the interior of the air cylinder, and then the second rack can be meshed with the third rack.

[0015] Specifically, the supporting device includes a vertical rod, a third rack and a front end base plate, two of the vertical rods are fixedly installed at the front end of the front end base plate, two of the third racks are fixedly installed at the front end of the front end base plate, and the third racks are located on the outside of the vertical rods.

[0016] Specifically, the movable rod is slidably inserted into the front end of the supporting front plate, the end of the connecting rod facing away from the supporting cavity is connected to the rear end of the supporting front baffle, the supporting side panels are fixedly installed at both ends of the movable back frame, the movable back frame is slidably sleeved between the two vertical rods, and the front end base plate is fixedly installed at the front end of the exterior wall structure.

[0017] Specifically, a square hole is opened inside the front end of the supporting front plate, round holes are opened at both ends of the movable back frame, the button switch is electrically connected to the alarm, and the gear is vertically aligned with the first rack.

[0018] Specifically, 11 plastic tubes are provided at the front end supporting the front baffle, and the side ends of the plastic tubes are fitted to each other.

[0019] Specifically, the interior of the gas cylinder is hollow, and a closed cavity is formed between the first piston rod, the gas cylinder and the second piston rod. The second rack is vertically aligned with the third rack, and a connecting rod is fixedly installed between the support arm and the gear.

[0020] Specifically, the interior of the support cavity is set in a hollow state, and the connecting rod is slidably inserted in the front end of the support cavity, the front end of the first piston rod is connected to the rear end of the support front baffle, and the first piston rod is located on the outside of the first rack.

[0021] Specifically, the base also includes a transverse support rod, a circular ring and a scraper. The transverse support rod is fixedly installed at the front and rear ends of the base. The scraper is slidably sleeved between the two transverse support rods. The circular ring is fixedly installed at the top front end of the scraper.

[0022] Beneficial effects of the present invention:

[0023] First, the present invention can effectively prevent the ship from having a rigid collision with the supporting front baffle by setting a plastic tube. At the same time, when the ship contacts the supporting front baffle, it can drive the connecting rod to move into the inside of the supporting cavity, so that the buffer spring can effectively reduce the impact force of the ship. At the same time, the movable rod moves in a straight line inside the supporting front plate, so that the connecting rod can be prevented from moving crookedly, thereby completing the work of the guided buffer.

[0024] Secondly, when the supporting front baffle moves toward the rear end, the present invention can also drive the first rack to pass through the bottom end of the gear, thereby driving the supporting arm to flip toward the front end, so that the reinforcing rib plate and the supporting arm can be rotated to a horizontal state and aligned with the supporting front baffle, thereby improving the rear end support strength of the supporting front baffle. At the same time, when the supporting front baffle moves toward the rear end, it can drive the second rack to the rear end and engage with the third rack, thereby preventing the device from rising and falling when being hit, thereby completing the work of synchronized positioning of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the front baffle mechanism of the present invention from a front perspective;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the contact component in the present invention from a front perspective;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the alignment device in the present invention from a front perspective;

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of the alignment device in the present invention from a rear perspective;

[0031] Figure 6 It is a partial cutaway schematic diagram of the synchronization device in the present invention;

[0032] Figure 7 It is a schematic diagram of the three-dimensional structure of the synchronization device in the present invention from a rear perspective;

[0033] Figure 8 It is a schematic diagram of the three-dimensional structure of the limiting device in the present invention from a front viewing angle;

[0034] Fig. 9 It is a schematic diagram of the three-dimensional structure of the support device in the present invention from a front perspective;

[0035] Fig.10 It is a schematic diagram of the three-dimensional structure from the front perspective of the second embodiment of the base of the present invention.

[0036] In the figure: 1-front baffle mechanism, 2-anti-seepage wall structure, 3-sandwich structure, 4-exterior wall structure, 5-support structure, 6-contact component, 7-support device, 8-alignment device, 9-synchronization device, 10-limiting device, 11-solar warning light, 12-support front baffle, 13-base, 14-plastic bucket, 15-plastic pipe, 16-movable rod, 17-first rack, 18-support arm, 19-reinforcement rib plate, 20-tooth Wheel, 21-support cavity, 22-movable back frame, 23-support front plate, 24-buffer spring, 25-connecting rod, 26-support top frame, 27-alarm, 28-button switch, 29-cylinder, 30-first piston rod, 31-support side plate, 32-second rack, 33-second piston rod, 34-vertical rod, 35-third rack, 36-front end base plate, 37-lateral support rod, 38-circular ring, 39-scraper. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0038] The present invention is further described below in conjunction with the accompanying drawings.

[0039] Example 1

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an explosion-proof protective structure of a dam impermeable wall of the present invention comprises an impermeable wall structure 2, sandwich structures 3 are fixedly installed on both sides of the impermeable wall structure 2, an outer wall structure 4 is fixedly installed on the outer side of the sandwich structure 3 away from the impermeable wall structure 2, a supporting structure 5 is fixedly installed behind the outer wall structure 4, and a front blocking mechanism 1 is fixedly installed in front of the outer wall structure 4;

[0041] The front stop mechanism 1 comprises a contact component 6 and a support device 7, wherein the contact component 6 can be slidably inserted into the front end of the support device 7;

[0042] The contact component 6 includes a synchronization device 9, a positioning device 8 is fixedly installed at the front end of the synchronization device 9, and a limiting device 10 is fixedly installed at both ends of the synchronization device 9;

[0043] The alignment device 8 includes a solar warning light 11, a supporting front baffle 12 and a base 13. Four solar warning lights 11 are fixedly mounted on the top of the supporting front baffle 12. The base 13 is fixedly mounted on the bottom of the supporting front baffle 12. A plastic tube 15 is fixedly mounted at an equal distance at the front end of the supporting front baffle 12. Two plastic barrels 14 are fixedly mounted at the bottom end of the base 13. Four movable rods 16 are fixedly mounted at the rear end of the supporting front baffle 12. A first rack 17 is fixedly mounted above the movable rod 16. The plastic tube 15 is located in front of the supporting front baffle 12, so that the supporting front baffle 12 can be prevented from having a rigid collision with the vessel.

[0044] When the supporting front baffle 12 moves toward the rear end, the first rack 17 can be driven to pass under the gear 20, so that the supporting arm 18 can rotate.

[0045] like Figure 6 and Figure 7The synchronization device 9 includes a movable back frame 22, a support front plate 23 and a support top frame 26. The two support front plates 23 are fixedly installed in front of the two movable back frames 22. Two support top frames 26 are provided, and the support top frames 26 are installed at the top of the movable back frames 22. Two support cavities 21 are fixedly installed at the front end of the support front plate 23. A buffer spring 24 is fixedly installed at the rear end of the support cavity 21. A connecting rod 25 is slidably inserted inside the front end of the support cavity 21. A support arm 18 is rotatably installed inside the support top frame 26. Strengthening ribs 19 are fixedly installed at the top ends of both sides of the support arm 18. A gear 20 is fixedly installed at the bottom of the side end of the support arm 18 near the support cavity 21. Two alarms 27 are fixedly installed on the top of the movable back frame 22. A button switch 28 is fixedly installed on the alarm 27 near the front end of the gear 20. The first rack 17 is horizontally aligned with the button switch 28, so that the first rack 17 can contact the button switch 28 when it moves to the extreme position to start the alarm 27 to sound an alarm.

[0046] When the supporting front baffle 12 moves toward the rear end, the connecting rod 25 can be driven to enter the interior of the supporting cavity 21 , and then the connecting rod 25 can drive the buffer spring 24 to be compressed and deformed.

[0047] like Figure 8 The limiting device 10 includes a supporting side plate 31 and a gas cylinder 29, the gas cylinder 29 is arranged and installed inside the supporting side plate 31, the front end of the gas cylinder 29 is slidably plugged with a first piston rod 30, the rear end of the gas cylinder 29 is slidably plugged with a second piston rod 33, the rear end of the second piston rod 33 is fixedly installed with a second rack 32, and grooves are opened on both sides of the interior of the front end substrate 36, and the front end substrate 36 is installed inside the groove, so that the second rack 32 can move along the inner wall of the groove when reciprocating, thereby preventing the second rack 32 from being skewed;

[0048] When the supporting front baffle 12 moves toward the rear end, the first piston rod 30 can be driven to enter the interior of the air cylinder 29 , and then the second rack 32 can mesh with the third rack 35 .

[0049] like Fig. 9 The supporting device 7 includes a vertical rod 34, a third rack 35 and a front end base plate 36, two vertical rods 34 are fixedly mounted on the front end of the front end base plate 36, two third racks 35 are fixedly mounted on the front end of the front end base plate 36, and the third racks 35 are located on the outside of the vertical rods 34;

[0050] The movable rod 16 is slidably inserted into the front end of the support front plate 23, the end of the connecting rod 25 away from the support cavity 21 is connected to the rear end of the support front baffle 12, the support side plate 31 is fixedly installed at both ends of the movable back frame 22, the movable back frame 22 is slidably sleeved between the two vertical rods 34, the front end base plate 36 is fixedly installed at the front end of the exterior wall structure 4, the front end of the support front plate 23 is provided with a square hole, and both ends of the movable back frame 22 are provided with round holes. The button switch 28 is electrically connected to the alarm 27, the gear 20 is vertically aligned with the first rack 17, and the plastic tube 15 is fixedly installed at the front baffle of the support. There are 11 at the front end of the plate 12, and the side ends of the plastic tube 15 are fitted together, the interior of the air cylinder 29 is hollow, and a closed cavity is formed between the first piston rod 30, the air cylinder 29 and the second piston rod 33, the second rack 32 is vertically aligned with the third rack 35, a connecting rod is fixedly installed between the support arm 18 and the gear 20, the interior of the support cavity 21 is hollow, and the connecting rod 25 is slidably inserted at the front end of the support cavity 21, the front end of the first piston rod 30 is connected to the rear end of the support front baffle 12, and the first piston rod 30 is located on the outside of the first rack 17.

[0051] The working principle of embodiment 1 is as follows: when in use, the sandwich structure 3 and the outer wall structure 4 are located on the periphery of the anti-seepage wall structure 2, so that the anti-seepage wall structure 2 can be wrapped and protected. At the same time, the front baffle mechanism 1 is located at the front end of the outer wall structure 4, so that protection can be formed at the front end of the outer wall structure 4. The buoyancy of the water can drive the plastic barrel 14 to rise to the water surface, so that the device can always be located above the water surface. At the same time, when the ship collides with the plastic tube 15, the setting of the plastic tube 15 can effectively avoid the rigid collision between the ship and the supporting front baffle 12. At the same time, when the impact potential energy drives the supporting front baffle 12 to move to the rear end, it can drive the connecting rod 25 to move into the inside of the supporting cavity 21. The buffer spring 24 is located in the inside of the supporting cavity 21, so that there can be The movable rod 16 is slidably inserted into the front end of the supporting front baffle 23 to ensure that the supporting front baffle 12 moves in a straight line. When the supporting front baffle 12 continues to move toward the rear end, the first rack 17 can be driven to pass through the bottom end of the gear 20, so that when the first rack 17 moves toward the rear end, the gear 20 can be driven to rotate. The supporting arm 18 is installed on the side end of the gear 20, so that when the gear 20 rotates, the supporting arm 18 and the reinforcing rib plate 19 can be driven to flip toward the front end. Moreover, when the supporting front baffle 12 has not moved to the extreme position toward the rear end, the first rack 17 can completely pass through the bottom end of the gear 20, so that the gear 20 will lose its meshing force. At this time, the supporting arm 18 will be in a posture inclined toward the front end, causing The support arm 18 will naturally rotate toward the front end due to the influence of gravity, until the support arm 18 rotates to the front end to the limit position and can be vertically aligned with the rear end of the support front baffle 12, so that the support strength of the support front baffle 12 can be improved, and the work of strengthening the support front baffle 12 can be completed. At the same time, when the support front baffle 12 moves to the rear end, it can also drive the first piston rod 30 to enter the interior of the air cylinder 29, so that the second piston rod 33 can be driven to move to the rear end. When the second piston rod 33 moves to the limit position at the rear end, it can mesh with the third rack 35, thereby preventing the support front baffle 12 from fluctuating up and down when absorbing the impact energy, and completing the work of protecting the anti-seepage wall structure 2. At the same time, when the first rack 17 moves to the limit position at the rear end, It can also contact with the button switch 28, thereby triggering the button switch 28 to start the alarm 27 to sound an alarm, raising the collision between the ship and the device, so as to remind the rescue personnel to rescue it. When the device is in use, when the ship is out of contact with the supporting front baffle 12, the elasticity of the buffer spring 24 will drive the supporting front baffle 12 to reset to the front end, and the supporting front baffle 12 can also drive the first piston rod 30 to move to the front end while moving to the front end, so that the first rack 32 is out of contact with the third rack 35, releasing the movable back frame 22, and when the supporting front baffle 12 moves to the front end, it can also drive the first rack 17 to pass through the bottom end of the gear 20 again, thereby driving the gear 20 to rotate in the opposite direction, so that the gear 20 can drive the supporting arm 18 to flip upward.Furthermore, when the support arm 18 is flipped upward to the extreme position, the support arm 18 can be driven to tilt toward the rear end, so that the top rear end of the support arm 18 fits with the front end surface of the front substrate 36, completing the reset of the support arm 18, and facilitating the front baffle 12 to perform energy absorption and buffering again. When the device is in use, the solar warning light 11 can be set to remind the ship at night, reducing the probability of the ship colliding with the device. At the same time, the movable back frame 22 is slidably sleeved on the vertical rod 34, so that the device can float up and down with the water level, thereby driving the device to always be above the water surface. At the same time, the rear end of the movable back frame 22 fits with the front end surface of the front substrate 36, so that the support strength of the movable back frame 22 can be improved, and the movable back frame 22 can be prevented from bending when the device is hit, thereby completing the work.

[0052] Example 2

[0053] On the basis of Example 1, Fig.10 As shown, the base 13 also includes a transverse support rod 37, a ring 38 and a scraper 39. The transverse support rod 37 is fixedly installed at the front and rear ends of the base 13, the scraper 39 is slidably sleeved between the two transverse support rods 37, and the ring 38 is fixedly installed at the top front end of the scraper 39.

[0054] When implementing this embodiment, when too much algae or crustaceans are adsorbed on the surface of the plastic barrel 14, the staff can drive the boat to the vicinity of the plastic barrel 14, then pass the external rope through the inside of the ring 38, and then pull the rope to drive the ring 38 and the scraper 39 to move. The inner ring surface of the scraper 39 fits with the outer ring surface of the plastic barrel 14, and the top end of the scraper 39 is slidably connected to the transverse support rod 37, so that the scraper 39 can move along the surface of the plastic barrel 14, thereby removing the algae and crustaceans attached to the surface of the plastic barrel 14, completing the cleaning of the surface of the plastic barrel 14.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof protective structure for a dam impermeable wall, comprising an impermeable wall structure (2), sandwich structures (3) fixedly mounted on both sides of the impermeable wall structure (2), an outer wall structure (4) fixedly mounted on the outer side of the sandwich structure (3) away from the impermeable wall structure (2), a supporting structure (5) fixedly mounted behind the outer wall structure (4), and a front stop mechanism (1) fixedly mounted in front of the outer wall structure (4), characterized in that: The front stop mechanism (1) comprises a contact component (6) and a support device (7), wherein the contact component (6) is slidably plugged into a front end of the support device (7); The contact component (6) comprises a synchronizing device (9), a positioning device (8) is fixedly mounted on the front end of the synchronizing device (9), and limiting devices (10) are fixedly mounted on both ends of the synchronizing device (9); The alignment device (8) comprises a solar warning light (11), a supporting front baffle (12) and a base (13), wherein four solar warning lights (11) are fixedly mounted on the top of the supporting front baffle (12), the base (13) is fixedly mounted on the bottom of the supporting front baffle (12), a plastic tube (15) is fixedly mounted at an equal distance at the front end of the supporting front baffle (12), two plastic barrels (14) are fixedly mounted at the bottom end of the base (13), four movable rods (16) are fixedly mounted on the rear end of the supporting front baffle (12), and a first rack (17) is fixedly mounted above the movable rod (16); When the supporting front baffle (12) moves toward the rear end, the first rack (17) can be driven to pass under the gear (20), and the supporting arm (18) can be rotated; The synchronizing device (9) comprises a movable back frame (22), a support front plate (23) and a support top frame (26), wherein the two support front plates (23) are fixedly mounted in front of the two movable back frames (22), two support top frames (26) are provided, and the support top frames (26) are mounted on the top of the movable back frames (22), the front end of the support front plate (23) is fixedly mounted with two support cavities (21), the rear end of the support cavity (21) is fixedly mounted with a buffer spring (24), and the support cavity A connecting rod (25) is slidably inserted into the front end of the body (21); a support arm (18) is rotatably installed inside the support top frame (26); reinforcing ribs (19) are fixedly installed on the top ends of both sides of the support arm (18); a gear (20) is fixedly installed on the bottom of the side end of the support arm (18) close to the support cavity (21); two alarms (27) are fixedly installed on the top of the movable back frame (22); and a button switch (28) is fixedly installed on the front end of the alarm (27) close to the gear (20); When the supporting front baffle (12) moves toward the rear end, the connecting rod (25) can be driven to enter the interior of the supporting cavity (21), and then the connecting rod (25) can drive the buffer spring (24) to compress and deform; The limiting device (10) comprises a supporting side plate (31) and an air cylinder (29), wherein the air cylinder (29) is arranged and installed inside the supporting side plate (31), a first piston rod (30) is slidably inserted inside the front end of the air cylinder (29), a second piston rod (33) is slidably inserted inside the rear end of the air cylinder (29), and a second rack (32) is fixedly installed at the rear end of the second piston rod (33); When the supporting front baffle (12) moves toward the rear end, the first piston rod (30) can be driven to enter the interior of the gas cylinder (29), and then the second rack (32) can be meshed with the third rack (35).

2. The explosion-proof protective structure of a dam cut-off wall according to claim 1, characterized in that: The support device (7) comprises a vertical rod (34), a third rack (35) and a front end base plate (36), wherein the two vertical rods (34) are fixedly mounted on the front end of the front end base plate (36), the two third racks (35) are fixedly mounted on the front end of the front end base plate (36), and the third racks (35) are located outside the vertical rods (34).

3. The explosion-proof protective structure of a dam cut-off wall according to claim 2, characterized in that: The movable rod (16) is slidably inserted into the front end of the supporting front plate (23); one end of the connecting rod (25) facing away from the supporting cavity (21) is connected to the rear end of the supporting front baffle (12); the supporting side plates (31) are fixedly mounted on both ends of the movable back frame (22); the movable back frame (22) is slidably sleeved between the two vertical rods (34); and the front end base plate (36) is fixedly mounted on the front end of the external wall structure (4).

4. The explosion-proof protective structure of a dam cut-off wall according to claim 3, characterized in that: A square hole is provided inside the front end of the supporting front plate (23), round holes are provided at both ends of the movable back frame (22), the button switch (28) is electrically connected to the alarm (27), and the gear (20) is vertically aligned with the first rack (17).

5. The explosion-proof protective structure of the dam cut-off wall according to claim 4, characterized in that: Eleven plastic tubes (15) are arranged at the front end of the supporting front baffle (12), and the side ends of the plastic tubes (15) are fitted together.

6. The explosion-proof protective structure of a dam cut-off wall according to claim 5, characterized in that: The interior of the gas cylinder (29) is arranged in a hollow state, and a closed cavity is formed between the first piston rod (30), the gas cylinder (29) and the second piston rod (33); the second rack (32) is vertically aligned with the third rack (35); and a connecting rod is fixedly installed between the support arm (18) and the gear (20).

7. The explosion-proof protective structure of a dam cut-off wall according to claim 6, characterized in that: The interior of the support cavity (21) is arranged in a hollow state, and the connecting rod (25) is slidably inserted into the front end of the support cavity (21), the front end of the first piston rod (30) is connected to the rear end of the support front baffle (12), and the first piston rod (30) is located outside the first rack (17).

8. The explosion-proof protective structure of the dam cut-off wall according to claim 7, characterized in that: The base (13) further comprises a transverse support rod (37), a circular ring (38) and a scraper (39), wherein the transverse support rod (37) is fixedly mounted at the front and rear ends of the base (13), the scraper (39) is slidably sleeved between the two transverse support rods (37), and the circular ring (38) is fixedly mounted at the top front end of the scraper (39).

Citation Information

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