Ship lock maintenance valve with water filling and pressure stabilizing functions

Abstract

The utility model provides a ship lock maintenance valve with water filling and pressure relief functions, which comprises a gate main body and a pressure relief valve, a drainage groove is arranged at the top of the gate main body, a brake pull pin is arranged on the gate main body and arranged in the drainage groove, the pressure relief valve comprises a drainage tube and a plugging seat, a first end of the drainage tube is communicated with the drainage groove, and a second end of the drainage tube is communicated with the plugging seat. The second end of the drainage tube extends out of one side of the gate body, a long-strip-shaped through hole is formed in the plugging base and arranged in the height direction of the plugging base, the plugging base is arranged on the brake pull pin in a sleeving mode through the long-strip-shaped through hole, and the lower end of the plugging base is connected into the drainage groove in the vertical direction in an up-down moving mode so that the drainage tube can be opened or closed. And a hanging part is arranged at the top of the plugging seat. Through the arrangement of the pressure release valve, when the overhaul valve is lifted, the pressure release valve is opened firstly, and when the pressure on the two sides of the overhaul valve tends to be balanced, the overhaul valve is lifted, so that the friction between the overhaul valve and the gate body is reduced, the lifting force is reduced, and the service life of the overhaul valve is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of lock engineering technology, specifically to a lock maintenance valve with a horizontal pressure charging function. Background Technology

[0002] A ship lock mainly consists of upper and lower lock heads, lock chambers, a water conveyance system, upstream and downstream approach channels, and corresponding lock valves and other equipment and facilities. Water is pumped in and out through the working valves of the water conveyance channel to allow the water level in the lock chamber to rise and fall between the upstream and downstream water levels, thus enabling ships to overcome concentrated water level differences in the waterway. In busy waterways, the working valves of the ship lock's water conveyance channel are frequently opened and closed, making them prone to malfunctions or requiring replacement of damaged parts. Therefore, in high-grade waterway ship locks, maintenance valves are usually installed on the upstream side or both upstream and downstream sides of each working valve to facilitate maintenance.

[0003] When the working valves of the lock are under maintenance, the corresponding maintenance valves can be temporarily closed to block water. After the working valves are repaired and restored to their working state, the maintenance valves need to be opened back to their original position. Under this condition, the water level on the side blocking water is higher than that on the other side. Therefore, under the water pressure on the side blocking water, the maintenance valve is pressed tightly against the inner wall of the maintenance valve well in the lock body. If the maintenance valve is opened by moving it upwards under this condition, there will be severe friction between the maintenance valve and the inner wall of the lock maintenance valve well, which can easily cause wear and damage to the maintenance valve. Moreover, opening the maintenance valve directly under this pressure requires overcoming the friction between the maintenance valve and the inner wall of the lock maintenance valve well, as well as the weight of the maintenance valve, which requires a huge opening and closing force and larger hoisting equipment, resulting in a waste of costs.

[0004] In summary, there is an urgent need for a lock maintenance valve with a horizontal pressure function to solve or at least partially solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a lock maintenance valve with a horizontal pressure charging function, aiming to solve the problem that the existing design requires overcoming large frictional forces when lifting the maintenance valve, which easily leads to frictional damage to the maintenance valve. The specific technical solution is as follows:

[0006] A lock maintenance valve with a horizontal pressure-filling function includes a gate body and a pressure relief valve. The top of the gate body is provided with a flow channel, and a pull pin is provided on the gate body and arranged in the flow channel. The pressure relief valve includes a flow pipe and a sealing seat. The first end of the flow pipe is connected to the flow channel, and the second end of the flow pipe extends out of the gate body and is connected to the outside of the valve body. The sealing seat is provided with an elongated through hole, which is arranged along the height direction of the sealing seat. The sealing seat is sleeved on the pull pin through the elongated through hole. The lower end of the sealing seat is movably connected to the flow channel vertically to open or close the flow pipe so that the flow channel is connected to or disconnected from the flow pipe. The sealing seat is provided with a hook part, which is located on the top of the sealing seat.

[0007] Preferably, the pressure relief valve further includes a water-stop pad, which is arranged at the bottom of the drainage channel and surrounds the opening of the drainage pipe.

[0008] Preferably, the pressure relief valve further includes a water-stop pad, a flow guide plug, a water seal, and a water-stop pressure plate. The water-stop pad is arranged at the bottom of the drainage groove and surrounds the opening of the drainage pipe. The flow guide plug is arranged at the lower end of the sealing seat. The water-stop pressure plate is detachably connected to the lower part of the flow guide plug, and an annular groove is formed between the water-stop pressure plate and the flow guide plug. The water seal is embedded in the annular groove.

[0009] Furthermore, a tapered guide portion protrudes downward from the bottom center of the guide plug, with the tapered surface of the tapered guide portion facing downward.

[0010] Preferably, the gate also includes a sealing element, which includes an end sealing strip and a bottom sealing strip. The end sealing strip is arranged around the gate body on three sides, and the bottom sealing strip is arranged at the bottom of the gate body.

[0011] Preferably, both the end sealing strip and the bottom sealing strip are detachably connected to the gate body.

[0012] Preferably, it also includes a main sliding support assembly, which is detachably connected to the gate body and arranged on the side of the gate body near the second end of the diversion pipe.

[0013] Preferably, the main sliding support assembly includes a sliding block and a slider. The sliding block is detachably connected to the side of the gate body near the second end of the diversion pipe. A slot is arranged on the side of the sliding block away from the gate body, and the slider is inserted into the slot.

[0014] Preferably, it also includes a back sliding support block, which is detachably connected to the side of the gate body away from the second end of the diversion pipe.

[0015] Preferably, it also includes guide wheels, which are arranged on the side of the gate body away from the second end of the diversion pipe, and the guide wheels are arranged in pairs.

[0016] The application of the technical solution of this utility model has the following beneficial effects:

[0017] When the gate needs to be lifted, the connecting part is engaged by a winch, which moves the sealing seat upward while the gate body remains stationary. At this time, a gap is created between the bottom of the sealing seat and the bottom of the diversion channel, allowing the diversion channel and the diversion pipe to connect. Water from the upstream flows into the downstream through the diversion channel and the diversion pipe, thus guiding the water from the upstream to the downstream. When the water levels of the upstream and downstream are basically equal, the pressure on both sides of the maintenance valve is equal. At this time, the maintenance valve is not pressed tightly against the side wall of the maintenance valve well in the lock body, so the friction between the maintenance valve and the side wall of the maintenance valve well decreases. The sealing seat is then lifted further, and the gate body is moved upward by the pull pin, thus easily lifting the maintenance valve and opening the passage. Throughout the entire operation, the friction between the maintenance valve and the inner wall of the maintenance valve well is relatively small, which makes it less likely to cause friction damage to the maintenance valve and improves its service life. Secondly, when lifting the gate body upward, there is no need to overcome a large friction force, and the lifting force is small. Therefore, a smaller winch can be used in the design, saving production costs.

[0018] By setting up a pressure relief valve, when lifting the maintenance valve, the pressure relief valve is opened first, so that the pressure on both sides of the maintenance valve tends to be balanced before lifting the maintenance valve. This reduces the friction between the maintenance valve and the gate body, reduces the lifting force, and improves the service life of the maintenance valve.

[0019] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. These will be described below with reference to... Figures 1-6 The present invention will be described in further detail below. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0021] Figure 1 This is one of the overall structural schematic diagrams of a lock maintenance valve with horizontal pressure charging function according to this utility model;

[0022] Figure 2 This is a cross-sectional view of a lock maintenance valve with a horizontal pressure charging function according to this utility model.

[0023] Figure 3 This is a schematic diagram of the internal structure of a pressure relief valve in a lock maintenance valve with a horizontal pressure charging function according to this utility model.

[0024] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 This is the second schematic diagram of the overall structure of a lock maintenance valve with horizontal pressure charging function according to this utility model;

[0026] Figure 6 This is a schematic diagram of the overall structure of a lock maintenance valve with a horizontal pressure function placed inside the lock body.

[0027] The components include: 1. Gate body; 11. Diversion channel; 12. Locking pin; 2. Pressure relief valve; 21. Diversion pipe; 22. Sealing seat; 221. Long strip through hole; 222. Hanging part; 23. Water-stop pad; 24. Guide plug; 241. Conical guide part; 25. Water seal; 26. Water-stop pressure plate; 3. Sealing element; 31. End sealing strip; 32. Bottom sealing strip; 4. Main sliding support assembly; 41. Sliding seat; 42. Sliding block; 5. Back sliding support block; 6. Guide wheel; 7. Gate body; 8. Gallery. Detailed Implementation

[0028] To facilitate understanding of this invention, a more comprehensive description is provided below, along with preferred embodiments. However, this invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0030] Example:

[0031] See Figures 1-6This embodiment provides a lock maintenance valve with a horizontal pressure charging function, including a gate body 1 and a pressure relief valve 2. The top of the gate body 1 is provided with a vertically arranged drainage groove 11. The gate body 1 is provided with a pull pin 12, which is detachably connected to the gate body 1 and arranged in the drainage groove 11. The pressure relief valve 2 includes a drainage pipe 21 and a sealing seat 22. The first end of the drainage pipe 21 is vertically arranged and communicates with the bottom of the drainage groove 11. The two ends rotate 90 degrees relative to the first end and extend from one side of the gate body 1. The sealing seat 22 is provided with an elongated through hole 221, which is arranged along the height direction of the sealing seat 22. The sealing seat 22 is fitted onto the pull pin 12 through the elongated through hole 221. The lower end of the sealing seat 22 is movably connected vertically to the diversion groove 11 to open or close the diversion pipe 21, so that the diversion groove 11 is connected to or disconnected from the diversion pipe. The sealing seat 22 is provided with a hook part 222. The hook part 222 is located at the top of the sealing seat 22.

[0032] Specifically, the gate body 1 is welded together from several horizontal beams, several vertical beams and a gate plate. A cross-reinforcing tie rod is welded to the side away from the gate plate. The reinforcing tie rod is connected to the horizontal beams and vertical beams by welding.

[0033] It should be noted that the maintenance valve is installed inside the lock body 7, which contains a water passageway 8 and a maintenance valve chamber. The maintenance valve moves up and down along the maintenance valve chamber to open and close the passageway 8. When maintenance is required on the lock, the passageway 8 needs to be closed via the maintenance valve. This is achieved by lowering the maintenance valve, which causes the water level upstream of the passageway 8 to rise, making the pressure on the upstream side of the maintenance valve greater than the pressure on the downstream side. This causes the maintenance valve to press tightly against the inner wall of the maintenance valve well in the lock body, thus closing the passageway 8. However, when it is necessary to open the maintenance valve, due to the water pressure, the valve remains pressed tightly against the inner wall of the maintenance valve well. Directly pulling the valve upward requires overcoming enormous friction, making it impossible to lift the gate smoothly.

[0034] By adopting the above structure, when the gate needs to be lifted, the winch engages the coupling part 222, and the winch drives the sealing seat 22 to move upward while the gate body 1 remains stationary. At this time, a gap is created between the bottom of the sealing seat 22 and the bottom of the diversion channel 11, allowing the diversion channel 11 to connect with the diversion pipe 21. The upstream water flows into the downstream through the diversion channel and the diversion pipe 21, thus guiding the upstream water to the downstream. When the upstream and downstream water levels are basically equal, the pressure on both sides of the maintenance valve is equal. At this time, the maintenance valve is not pressed against the side wall of the maintenance valve chamber, so the friction between the maintenance valve and the side wall of the maintenance valve chamber decreases. The sealing seat 22 is then lifted, and the gate body 1 is moved upward by the pull pin 12, thus easily lifting the maintenance valve and opening the corridor 8. Throughout the entire operation, the friction between the maintenance valve and the inner wall of the maintenance valve chamber is relatively small, which makes it less likely to cause friction damage to the maintenance valve and improves the service life of the maintenance valve. Secondly, in the process of lifting the gate body 1 upward, it is not necessary to overcome a large friction force, and the lifting force is small. A smaller winch can be used in the design, saving production costs.

[0035] In its natural state, the sealing seat 22 is pressed against the bottom of the drinking trough under the action of gravity, and the bottom of the sealing seat 22 blocks the opening of the drain pipe 21, thereby closing the pressure relief valve 2. At this time, both the maintenance valve and the pressure relief valve 2 are in the closed state, preventing upstream water from entering the downstream through the corridor 8, which facilitates the maintenance of downstream gates or other facilities.

[0036] It is worth noting that in this embodiment, the hook part 222 is a hook pin. The hook pin is detachably connected to the sealing seat 22 through the baffles and bolts at both ends. When the hook pin is lifted upward, it causes the sealing seat 22 to move upward.

[0037] In a preferred embodiment, the pressure relief valve 2 also includes a water-stop pad 23, which is welded and fixed to the bottom of the drainage groove 11. The water-stop pad 23 is arranged around the opening of the drainage pipe 21. When the sealing seat 22 moves down to the lower end, the lower part of the sealing seat 22 abuts against the upper surface of the water-stop pad 23 to seal.

[0038] Understandably, if the sealing seat 22 is directly pressed against the bottom of the drainage channel 11 for sealing, unevenness between the sealing seat 22 and the bottom of the drainage channel 11 may prevent a proper seal. However, by placing a water-stop pad 23 at the bottom of the drainage channel 11, the sealing seat 22 abuts against the water-stop pad 23 as it moves downwards, achieving a seal between them. The water-stop pad 23 is made of steel plate, with its top machined into a flat surface, allowing the bottom of the sealing seat 22 to fit snugly against the top of the water-stop pad 23 for a seal. The area of ​​the water-stop pad 23 is smaller than the area of ​​the bottom of the drainage channel 11, making it easier to machine and ensuring flatness, which is beneficial for sealing.

[0039] In a preferred embodiment, the pressure relief valve 2 further includes a water-stop pad 23, a flow guide plug 24, a water seal 25, and a water-stop pressure plate 26. The water-stop pad 23 is arranged at the bottom of the drainage groove 11 and surrounds the opening of the drainage pipe 21. The flow guide plug 24 is arranged at the lower end of the sealing seat 22. The water-stop pressure plate 26 is detachably connected to the lower part of the flow guide plug 24, and an annular groove is formed between the water-stop pressure plate 26 and the flow guide plug 24. The water seal 25 is embedded in the annular groove.

[0040] Specifically, the water-stop pressure plate 26 is detachably connected to the bottom of the guide plug 24 by bolts. The water-stop pressure plate 26 acts to press and fix the water seal 25, thus fixing the water seal 25 to the bottom of the guide plug 24. In some embodiments, it is not necessary to set the water-stop pressure plate 26 and the water seal 25, as the bottom of the guide plug 24 can abut against the top of the water-stop pad 23 for sealing. However, during the production process, the bottom area of ​​the guide plug 24 is relatively large, and it is difficult to ensure the flatness of the bottom of the guide plug 24. That is, if the bottom of the guide plug 24 is not flat, it is easy to cause water leakage between the guide plug 24 and the water-stop pad 23. The bottom area of ​​the water seal 25 is smaller, the flatness is easier to ensure, and the deformation capacity is stronger, which can compensate for the unevenness of the water-stop pad below. The setting of the water seal 25 and the water-stop pressure plate 26 makes the seal more reliable. Secondly, when the water seal 25 is damaged, it can be easily replaced by removing the water-stop pressure plate 26, which is faster and cheaper than replacing the guide plug 24.

[0041] Understandably, when the sealing seat 22 moves upward, the sealing seat 22 and the guide plug 24 installed on the sealing seat 22 also move upward. At this time, there is a gap between the guide plug 24 and the water-stopping pad 23. Water upstream of the corridor 8 can enter the gap through the diversion channel 11 and enter the downstream of the corridor 8 through the diversion pipe 21, allowing the upstream water to pass smoothly through the maintenance valve. When the sealing seat 22 moves downward and reaches the lower end of the diversion channel 11, the water seal 25 at the bottom of the guide plug 24 located at the lower part of the sealing seat 22 abuts and seals with the water-stopping pad 23 at the bottom of the diversion channel 11, isolating the diversion channel 11 from the diversion pipe 21, thereby closing the maintenance valve. Both the water seal 25 and the guide plug 24 are made of flexible materials, such as rubber, silicone, or polyurethane. The setting of the guide plug 24 and the water-stopping pad 23 improves the sealing performance between the sealing plug and the gate body 1, preventing leakage during the sealing process and causing poor sealing.

[0042] Furthermore, a tapered guide portion 241 protrudes downward from the bottom center of the guide plug 24, with the tapered surface of the tapered guide portion 241 facing downward. Understandably, through the setting of the tapered guide portion 241, when the sealing seat 22 moves downward, the tapered guide portion 241 acts as a guide, allowing the sealing seat 22 to smoothly move to the position corresponding to the drainage pipe 21, so that the bottom of the sealing seat 22 abuts against the water-stop pad 23, preventing the sealing seat 22 from shifting position during downward movement and causing the bottom of the sealing seat 22 to fail to properly fit and seal with the water-stop pad 23.

[0043] Preferably, the system further includes a sealing element 3, which comprises an end sealing strip 31 and a bottom sealing strip 32. The end sealing strip 31 is arranged around the gate body 1 on three sides, and the bottom sealing strip 32 is arranged at the bottom of the gate body 1. The end sealing strip 31 and the bottom sealing strip 32 are seamlessly connected to form a complete sealing line. Of course, in some other embodiments, the end sealing strip 31 and the bottom sealing strip 32 can also be overlapped or partially overlapped to form a complete sealing line, making the seal more reliable.

[0044] Specifically, the end sealing strip 31 is a P-type sealing strip, which is detachably connected to the side of the gate body 1 near the downstream of the corridor 8 by bolts. The bottom sealing strip 32 is detachably connected to the bottom of the gate body 1 by bolts. When the gate body 1 seals the corridor 8, the bottom sealing strip 32 at the bottom of the gate body 1 abuts against the bottom of the maintenance valve well, and the end sealing strip 31 abuts against the inner wall of the maintenance valve well. Under the action of upstream water pressure, the maintenance valve is pressed against the inner wall of the maintenance valve well, thereby achieving the interception of the corridor 8. The end sealing strip 31 is respectively wrapped around the upper side and the left and right sides of the corridor 8, and seals the upper side and the left and right sides of the corridor 8.

[0045] Preferably, it also includes a main sliding support assembly 4, which is detachably connected to the gate body 1 and arranged on the side of the gate body 1 near the second end of the diversion pipe 21.

[0046] Specifically, four main sliding support assemblies 4 are arranged, one on the left and one on the right sides of the gate body 1, respectively, and located outside the end sealing strip 31. The main sliding support assemblies 4 are detachably connected to the gate body 1 by bolts, and the height of the main sliding support assemblies 4 is lower than the height of the end sealing strip. Understandably, when the maintenance valve is closed, the upstream water pressure exerts pressure on the maintenance valve, causing it to press against the side wall of the maintenance valve well. Without the presence of the main support assemblies, the end sealing strip 31 would bear the entire pressure of the water, making it easily damaged. However, by setting the main support assemblies, the end sealing strip 31 partially deforms under the water pressure until the main support assemblies support the inner wall of the maintenance valve well. The water pressure is then mainly supported by the main support assemblies, reducing the pressure on the end sealing strip 31 and preventing it from being damaged by the water pressure. This improves the service life of the end sealing strip and also ensures sealing performance. Furthermore, when the gate body 1 is lifted upwards, friction occurs between the support body and the inner wall of the maintenance valve well, reducing the friction of the sealing strip and further improving the service life of the end sealing strip. In some other embodiments, more support bodies can be arranged, such as six or eight.

[0047] Preferably, the main sliding support assembly 4 includes a sliding seat 41 and a slider 42. The sliding seat 41 is detachably connected to the side of the gate body 1 near the second end of the diversion pipe 21. A slot is arranged on the side of the sliding seat 41 away from the gate body 1, and the slider 42 is inserted into the slot.

[0048] Understandably, the slider 42 is slidably connected in the slot, allowing for easy replacement when the slider 42 is damaged. Furthermore, sliders 42 of different thicknesses can be replaced according to different end sealing strips 31, facilitating easy adjustment of the support height of the main support assembly. The slider 42 is made of a wear-resistant material with lower hardness than the gate body 7, such as polytetrafluoroethylene, bakelite, or polyurethane.

[0049] Preferably, it also includes a back sliding support block 5, which is detachably connected to the side of the gate body 1 away from the second end of the diversion pipe 21.

[0050] Specifically, on the side of the gate body 1 away from the second end of the diversion pipe 21, that is, the side close to the seal 3, the back slide block 42 is made of a wear-resistant material with lower hardness than the gate body 7, such as polytetrafluoroethylene, bakelite, polyurethane, etc.

[0051] Understandably, when the gate body 1 is lifted, it may move back and forth. If a back slide block 42 is not installed on the side of the gate body 1 away from the seal 3, the side of the gate body 1 away from the seal 3 is prone to collision and friction with the inner wall of the maintenance valve well during the lifting process, which could easily lead to damage to the gate body 1 and the inner wall of the maintenance valve well. However, with the arrangement of the back slide block 5, when the gate body 1 is rising, the back slide block 5 impacts or rubs with the inner wall of the maintenance valve well. Because the hardness of the back slide block 42 is lower than that of the inner wall of the maintenance valve well, damage to the maintenance valve well and the gate body 1 is avoided. The back slide block 42 can be disassembled and replaced in a timely manner after damage.

[0052] Preferably, it also includes a guide wheel 6, which is arranged on the side of the gate body 1 away from the second end of the diversion pipe 21, and the guide wheels 6 are arranged in pairs.

[0053] A slide rail or slide track is installed in the maintenance valve well. The guide wheel 6 is supported in the slide rail or slide track to guide the gate body 1, so that the gate body 1 moves in the correct position. In addition, it reduces the shaking of the gate body 1 during the up and down movement and reduces the collision between the gate body 1 and the inner wall of the maintenance valve well.

[0054] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lock maintenance valve with a horizontal pressure charging function, characterized in that: The system includes a gate body (1) and a pressure relief valve (2). The top of the gate body (1) is provided with a flow channel (11), and the gate body (1) is provided with a pull pin (12), which is arranged in the flow channel (11). The pressure relief valve (2) includes a drain pipe (21) and a sealing seat (22). The first end of the drain pipe (21) is connected to the drain groove (11), and the second end of the drain pipe (21) extends out of the gate body (1) and is connected to the outside of the gate body (1). The sealing seat (22) is provided with an elongated through hole (221), which is arranged along the height direction of the sealing seat (22). The sealing seat (22) is fitted onto the pull pin (12) through the elongated through hole (221). The lower end of the sealing seat (22) is movably connected vertically to the drain groove (11) to open or close the drain pipe (21), so that the drain groove (11) is connected to or disconnected from the drain pipe (21). The sealing seat (22) is provided with a hook part (222), which is located on the top of the sealing seat (22).

2. A lock maintenance valve with horizontal pressure charging function according to claim 1, characterized in that: The pressure relief valve (2) also includes a water-stop pad (23), which is arranged at the bottom of the drainage groove (11) and surrounds the opening of the drainage pipe (21).

3. A lock maintenance valve with horizontal pressure charging function according to claim 1, characterized in that: The pressure relief valve (2) further includes a water-stop pad (23), a flow guide plug (24), a water seal (25), and a water-stop pressure plate (26). The water-stop pad (23) is arranged at the bottom of the drainage groove (11) and surrounds the opening of the drainage pipe (21). The flow guide plug (24) is arranged at the lower end of the sealing seat (22). The water-stop pressure plate (26) is detachably connected to the lower part of the flow guide plug (24), and an annular groove is formed between the water-stop pressure plate (26) and the flow guide plug (24). The water seal (25) is embedded in the annular groove.

4. A lock maintenance valve with horizontal pressure charging function according to claim 3, characterized in that: The bottom center of the flow guide plug (24) has a conical guide portion (241) protruding downwards, and the conical surface of the conical guide portion (241) is arranged downwards.

5. A lock maintenance valve with horizontal pressure charging function according to any one of claims 1-4, characterized in that: It also includes a sealing element (3), which includes an end sealing strip (31) and a bottom sealing strip (32). The end sealing strip (31) is arranged around the gate body (1) on three sides, and the bottom sealing strip (32) is arranged at the bottom of the gate body (1).

6. A lock maintenance valve with horizontal pressure charging function according to claim 5, characterized in that: Both the end sealing strip (31) and the bottom sealing strip (32) can be detachably connected to the gate body (1).

7. A lock maintenance valve with horizontal pressure charging function according to any one of claims 1-4, characterized in that: It also includes a main sliding support assembly (4), which is detachably connected to the gate body (1) and arranged on the side of the gate body (1) near the second end of the drain pipe (21).

8. A lock maintenance valve with horizontal pressure charging function according to claim 7, characterized in that: The main sliding support assembly (4) includes a sliding block (41) and a slider (42). The sliding block (41) is detachably connected to the side of the gate body (1) near the second end of the drain pipe (21). A slot is arranged on the side of the sliding block (41) away from the gate body (1), and the slider (42) is inserted into the slot.

9. A lock maintenance valve with horizontal pressure charging function according to any one of claims 1-4, characterized in that: It also includes a back slide block (5), which is detachably connected to the side of the gate body (1) away from the second end of the drain pipe (21).

10. A lock maintenance valve with a horizontal pressure charging function according to any one of claims 1-4, characterized in that: It also includes guide wheels (6), which are arranged on the side of the gate body (1) away from the second end of the diversion pipe (21), and the guide wheels (6) are arranged in pairs.

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