Valve for controlling hydrogen fuel pressure
By designing a limit structure on the valve, the problem of accidental opening or closing of the valve caused by accidental collision is solved, and the stable control of hydrogen fuel pressure is achieved, which improves the safety and practicality of the valve.
Patent Information
- Application Number
- CN202420356924.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-27
- Publication Date
- 2025-02-18
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, the valve handle lacks a fixing device, which easily leads to accidental opening or closing of the valve due to accidental contact, causing hydrogen fuel leakage or insufficient supply.
A valve is designed to control hydrogen fuel pressure, adopting a limit structure, including the first spring, bottom plate, top plate and tooth. Through the cooperation of these components, the limit of the valve handle is achieved to avoid accidental opening or accidental opening caused by accidental collision or closure.
It effectively avoids accidental valve operation caused by accidental contact, prevents hydrogen fuel leakage or insufficient supply, and improves the practicality and safety of the valve.
Smart Images
Figure CN222502891U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to a valve for controlling the pressure of hydrogen fuel. Background Art
[0002] A valve is a device used to control the flow of fluids, usually used in pipeline systems. A valve is usually composed of a valve body, a valve cover, a valve core, a valve seat and other components. It can be used to adjust the pressure of hydrogen and maintain a stable pressure of hydrogen in the fuel cell system.
[0003] The existing related technologies often have the following defects: when using the valve, since the existing valve handle does not have a fixing device, the valve is easily opened accidentally due to accidentally touching the handle, which may cause hydrogen fuel leakage, causing environmental pollution or safety risks. In addition, if the valve is accidentally closed due to accidental touching, it may cause insufficient supply of hydrogen fuel in the pipeline, affecting the normal operation of production or equipment.
[0004] Therefore, the utility model provides a valve for controlling the pressure of hydrogen fuel. Utility Model Content
[0005] The utility model aims to solve the shortcomings of the prior art that the valve may be accidentally opened or closed due to accidental touching of the handle, which may easily cause leakage of hydrogen fuel or insufficient supply of hydrogen fuel in the pipeline, and proposes a valve for controlling the pressure of hydrogen fuel.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a valve for controlling hydrogen fuel pressure, comprising a valve body, two threaded rings are installed on the surface of the valve body, a valve cover is installed on the surface of the valve body, a handle is installed on the surface of the valve body, a connecting pipe is connected to the surface of the valve body, a pressure gauge is installed on the end of the connecting pipe away from the valve body, a limiting structure is provided on the surface of the valve cover, the limiting structure comprises a first spring, the first spring is fixedly connected to the surface of the valve cover, the end of the first spring away from the valve cover is fixedly connected to a bottom plate, the surface of the handle is fixedly connected to a top plate, and a plurality of teeth are fixedly connected to the sides of the bottom plate and the top plate close to each other.
[0007] The effect achieved by the above components is: by setting a limit structure, it is convenient to limit the valve handle that controls the hydrogen fuel, thereby avoiding accidental opening or closing of the valve due to accidental touching of the handle, resulting in hydrogen fuel leakage, or insufficient hydrogen fuel supply, thereby improving the practicality of the valve.
[0008] Preferably, a groove is formed on the arc surface of the bottom plate, a ring is rotatably connected to the inner wall of the groove, and two pressure plates are fixedly connected to the arc surface of the ring.
[0009] The effects achieved by the above components are: the movement of the pressure plate drives the movement of the ring, and the movement of the ring drives the movement of the bottom plate, and the pressure plate facilitates the movement of the bottom plate.
[0010] Preferably, four round rods are fixedly connected to the surface of the valve cover, and the four round rods are grouped in pairs. One end of a group of round rods away from the valve cover is fixedly connected to a clamping block, and the size of the clamping block is adapted to the size of the pressure plate.
[0011] The effect achieved by the above components is that the pressure plate contacts the inner wall of the clamping block, and the clamping block reaches a position to limit the pressure plate, thereby limiting the position of the bottom plate, thereby facilitating temporary positioning of the bottom plate.
[0012] Preferably, two L-shaped rods are fixedly connected to the arc surface of the bottom plate, one end of the L-shaped rod away from the bottom plate is fixedly connected to a V-shaped plate, and the V-shaped plate is slidably connected to the surface of the valve cover.
[0013] The effect achieved by the above components is: when the bottom plate moves, it will drive the two L-shaped rods to move, and the movement of the L-shaped rods will drive the V-shaped plate to slide along the surface of the valve cover, and the V-shaped plate will limit the movement path of the L-shaped plate, thereby limiting the movement path of the bottom plate.
[0014] Preferably, a cleaning structure is provided on the surface of the pressure gauge, and the cleaning structure includes a support arm, the surface of the support arm is rotatably connected to a drive shaft, the arc surface of the drive shaft is fixedly connected to a drive plate, a cleaning pad is fixedly connected to a side of the drive plate close to the pressure gauge, a pin is slidably penetrated through the surface of the support arm, a circular hole is opened on the surface of the drive plate, and the size of the pin is adapted to the size of the circular hole.
[0015] The effect achieved by the above components is: by setting up the cleaning structure, it is easy to clean the surface of the pressure gauge, thereby removing dirt and dust, making the scale and pointer of the pressure gauge more clearly visible, thereby improving readability and accuracy.
[0016] Preferably, the arc surface of the latch is fixedly connected with a circular plate, the arc surface of the latch is sleeved with a second spring, and two ends of the second spring are respectively fixedly connected with the circular plate and the support arm.
[0017] The effect achieved by the above components is that the circular plate will drive the pin to be inserted into the circular hole with the help of the extension force of the second spring, and the second spring will reach a position that is convenient for moving the circular plate, thereby facilitating the movement of the pin, and then facilitating the insertion of the pin into the position of the limit drive plate in the circular hole.
[0018] Preferably, a limiting plate is fixedly connected to the surface of the support arm.
[0019] The effect achieved by the above components is: when the driving plate contacts the limiting plate, the driving plate completes the reset, and the limiting plate reaches the limit rotation angle of the driving plate, which is convenient for resetting the driving plate.
[0020] In summary:
[0021] 1. In the utility model, by setting a limiting structure, the bottom plate is pressed so that the teeth on the surface of the bottom plate and the top plate are out of contact, thereby adjusting the valve. After the valve adjustment is completed, the bottom plate is released, and the bottom plate moves toward the top plate with the help of the force of the first spring until the teeth on the surface of the bottom plate and the top plate are engaged, thereby limiting the valve handle for controlling the hydrogen fuel, avoiding accidental opening of the valve due to accidental touching of the handle, and thus solving the problem of hydrogen fuel leakage or insufficient hydrogen fuel supply in the pipeline.
[0022] 2. In the utility model, a cleaning structure is provided to pull the latch. When the latch is released from the inner wall of the circular hole, the drive shaft is rotated. The rotation of the drive shaft drives the drive plate to rotate. The rotation of the drive plate drives the cleaning pad to move. The cleaning pad slides along the surface of the pressure gauge during movement, thereby wiping the surface of the pressure gauge to remove dirt and dust attached to the surface of the pressure gauge during use, so that the scale and pointer of the pressure gauge are more clearly visible. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0024] Figure 2 This is a structural schematic diagram of the valve cover of the utility model;
[0025] Figure 3 This is a schematic diagram of the disassembled structure of the bottom plate of the utility model;
[0026] Figure 4 It is a structural schematic diagram of the pressure gauge of the utility model;
[0027] Figure 5 For this utility model Figure 4 Schematic diagram of the local structure in.
[0028] Legend: 1. Valve body; 2. Threaded ring; 3. Valve cover; 4. Handle; 5. Connecting pipe; 6. Pressure gauge; 7. Limiting structure; 701. First spring; 702. Top plate; 703. Bottom plate; 704. Groove; 705. Ring; 706. Pressure plate; 707. Round rod; 708. Block; 709. L-shaped rod; 710. V-shaped plate; 8. Cleaning structure; 81. Support arm; 82. Drive shaft; 83. Drive plate; 84. Cleaning pad; 85. Pin; 86. Round hole; 87. Round plate; 88. Second spring; 89. Limiting plate. DETAILED DESCRIPTION
[0029] Reference Figure 1 As shown, the utility model provides a technical solution: a valve for controlling hydrogen fuel pressure, comprising a valve body 1, two threaded rings 2 are installed on the surface of the valve body 1, a valve cover 3 is installed on the surface of the valve body 1, a handle 4 is installed on the surface of the valve body 1, a connecting pipe 5 is connected to the surface of the valve body 1, a pressure gauge 6 is installed on the end of the connecting pipe 5 away from the valve body 1, and a limiting structure 7 is provided on the surface of the valve cover 3. By setting the limiting structure 7, it is convenient to limit the valve handle 4 for controlling hydrogen fuel, thereby avoiding accidental opening or closing of the valve due to accidental touching of the handle 4, resulting in hydrogen fuel leakage, or insufficient hydrogen fuel supply, thereby improving the practicality of the valve. A cleaning structure 8 is provided on the surface of the pressure gauge 6, and by setting the cleaning structure 8, it is convenient to clean the surface of the pressure gauge 6, thereby removing dirt and dust, making the scale and pointer of the pressure gauge 6 more clearly visible, thereby improving readability and accuracy.
[0030] The specific settings and functions of the limiting structure 7 and the cleaning structure 8 are described in detail below.
[0031] Reference Figure 2 and Figure 3 As shown, in this embodiment: the limiting structure 7 includes a first spring 701, the first spring 701 is fixedly connected to the surface of the valve cover 3, the end of the first spring 701 away from the valve cover 3 is fixedly connected to the bottom plate 703, the surface of the handle 4 is fixedly connected to the top plate 702, and the sides of the bottom plate 703 and the top plate 702 close to each other are fixedly connected to a plurality of teeth. The arc surface of the bottom plate 703 is provided with a groove 704, the inner wall of the groove 704 is rotatably connected to a ring 705, and the arc surface of the ring 705 is fixedly connected to two pressing plates 706, the movement of the pressing plate 706 will drive the ring 705 to move, and the movement of the ring 705 will drive the bottom plate 703 to move, and the pressing plate 706 can facilitate the movement of the bottom plate 703. Four round rods 707 are fixedly connected to the surface of the valve cover 3. The four round rods 707 are arranged in groups of two. A block 708 is fixedly connected to one end of a group of round rods 707 away from the valve cover 3. The size of the block 708 matches the size of the pressure plate 706. The pressure plate 706 will contact the inner wall of the block 708. The block 708 reaches the position of limiting the pressure plate 706, thereby limiting the position of the bottom plate 703, thereby facilitating temporary positioning of the bottom plate 703. Two L-shaped rods 709 are fixedly connected to the arc surface of the bottom plate 703. A V-shaped plate 710 is fixedly connected to the end of the L-shaped rod 709 away from the bottom plate 703. The V-shaped plate 710 is slidably connected to the surface of the valve cover 3. When the bottom plate 703 moves, it will drive the two L-shaped rods 709 to move. The movement of the L-shaped rod 709 will drive the V-shaped plate 710 to slide along the surface of the valve cover 3. The V-shaped plate 710 reaches the limit of the moving path of the L-shaped plate, thereby limiting the moving path of the bottom plate 703.
[0032] Reference Figure 4 and Figure 5 As shown, specifically, the cleaning structure 8 includes a support arm 81, the surface of the support arm 81 is rotatably connected to a driving shaft 82, the arc surface of the driving shaft 82 is fixedly connected to a driving plate 83, the side of the driving plate 83 close to the pressure gauge 6 is fixedly connected to a cleaning pad 84, the surface of the support arm 81 is slidably penetrated by a latch 85, the surface of the driving plate 83 is provided with a circular hole 86, and the size of the latch 85 matches the size of the circular hole 86. The arc surface of the latch 85 is fixedly connected to a circular plate 87, the arc surface of the latch 85 is sleeved with a second spring 88, the two ends of the second spring 88 are respectively fixedly connected to the circular plate 87 and the support arm 81, the circular plate 87 will drive the latch 85 to insert into the circular hole 86 with the help of the force of the second spring 88, the second spring 88 reaches a position that is convenient for moving the circular plate 87, thereby facilitating the movement of the latch 85, and then facilitating the insertion of the latch 85 into the circular hole 86 to limit the position of the driving plate 83. The surface of the support arm 81 is fixedly connected to a limit plate 89. When the drive plate 83 contacts the limit plate 89, the drive plate 83 is reset. The limit plate 89 limits the rotation angle of the drive plate 83, thereby facilitating the reset of the drive plate 83.
[0033] Working principle: when the valve handle 4 for controlling hydrogen fuel needs to be adjusted, the pressure plate 706 is first pressed. The movement of the pressure plate 706 will drive the movement of the ring 705. The movement of the ring 705 will drive the bottom plate 703 to move. The bottom plate 703 will move in the direction close to the valve cover 3. When the bottom plate 703 moves, it will drive the two L-shaped rods 709 to move. The movement of the L-shaped rods 709 will drive the V-shaped plate 710 to slide along the surface of the valve cover 3. The V-shaped plate 710 reaches the limit of the movement path of the L-shaped plate, thereby limiting the movement path of the bottom plate 703. The bottom plate 703 will compress the first spring 701 during the movement. At this time, the first spring 701 is in a compressed state. When the bottom plate 703 moves to a suitable position, the bottom plate 703 and the surface of the top plate 702 are The teeth of the valve body 703 will be out of contact, and then the pressure plate 706 will be pushed. The movement of the pressure plate 706 will drive the ring 705 to rotate along the inner wall of the groove 704. When the pressure plate 706 rotates to a suitable position, the pressure plate 706 will contact the inner wall of the block 708, and the block 708 reaches the position of limiting the pressure plate 706, thereby limiting the position of the bottom plate 703, and then facilitating temporary limiting of the bottom plate 703. After the valve is adjusted, the pressure plate 706 is pushed in the opposite direction, and the pressure plate 706 will slide along the inner wall of the block 708. When the pressure plate 706 is out of contact with the block 708, the pressure plate 706 is released, and the bottom plate 703 will move in the direction close to the top plate 702 with the help of the extension force of the first spring 701 until the bottom plate 703 is meshed with the teeth on the surface of the top plate 702.
[0034] When it is necessary to view the value displayed on the pressure gauge 6, first pull the latch 85, the latch 85 moves and slides along the inner wall of the circular hole 86, the latch 85 drives the circular plate 87 to move, the circular plate 87 moves and compresses the second spring 88, when the latch 85 is released from the inner wall of the circular hole 86, the drive shaft 82 is rotated, the rotation of the drive shaft 82 drives the drive plate 83 to rotate, the rotation of the drive plate 83 drives the cleaning pad 84 to move, the cleaning pad 84 slides along the surface of the pressure gauge 6 during the movement, thereby wiping the surface of the pressure gauge 6 After the pressure gauge 6 is cleaned, the drive shaft 82 is rotated in the opposite direction, and the drive shaft 82 will drive the drive plate 83 to rotate in the opposite direction. When the drive plate 83 contacts the limit plate 89, the drive plate 83 completes the reset, and the latch 85 is released. The circular plate 87 will drive the latch 85 to be inserted into the circular hole 86 with the help of the extension force of the second spring 88. The second spring 88 reaches a position that is convenient for moving the circular plate 87, thereby facilitating the movement of the latch 85, and then facilitating the insertion of the latch 85 into the position of the limit drive plate 83 in the circular hole 86.
[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
Claims
1. A valve for controlling hydrogen fuel pressure, comprising a valve body (1), two threaded rings (2) being mounted on the surface of the valve body (1), a valve cover (3) being mounted on the surface of the valve body (1), a handle (4) being mounted on the surface of the valve body (1), a connecting pipe (5) being connected to the surface of the valve body (1), a pressure gauge (6) being mounted on one end of the connecting pipe (5) away from the valve body (1), and a limiting structure (7) being mounted on the surface of the valve cover (3), characterized in that: The limiting structure (7) comprises a first spring (701), the first spring (701) is fixedly connected to the surface of the valve cover (3), one end of the first spring (701) away from the valve cover (3) is fixedly connected to a bottom plate (703), the surface of the handle (4) is fixedly connected to a top plate (702), and a plurality of teeth are fixedly connected to the sides of the bottom plate (703) and the top plate (702) that are close to each other.
2. A valve for controlling hydrogen fuel pressure according to claim 1, characterized in that: The arc surface of the bottom plate (703) is provided with a groove (704), the inner wall of the groove (704) is rotatably connected to a ring (705), and the arc surface of the ring (705) is fixedly connected to two pressing plates (706).
3. A valve for controlling hydrogen fuel pressure according to claim 1, characterized in that: Four round rods (707) are fixedly connected to the surface of the valve cover (3), and the four round rods (707) are arranged in groups of two. One end of a group of round rods (707) away from the valve cover (3) is fixedly connected to a clamping block (708), and the size of the clamping block (708) is adapted to the size of the pressure plate (706).
4. A valve for controlling hydrogen fuel pressure according to claim 1, characterized in that: Two L-shaped rods (709) are fixedly connected to the arc surface of the bottom plate (703), and one end of the L-shaped rod (709) away from the bottom plate (703) is fixedly connected to a V-shaped plate (710), and the V-shaped plate (710) is slidably connected to the surface of the valve cover (3).
5. A valve for controlling hydrogen fuel pressure according to claim 1, characterized in that: The surface of the pressure gauge (6) is provided with a cleaning structure (8), and the cleaning structure (8) comprises a support arm (81), the surface of the support arm (81) is rotatably connected to a drive shaft (82), the arc surface of the drive shaft (82) is fixedly connected to a drive plate (83), and a cleaning pad (84) is fixedly connected to a side of the drive plate (83) close to the pressure gauge (6), a latch (85) is slidably penetrated through the surface of the support arm (81), and a circular hole (86) is opened on the surface of the drive plate (83), and the size of the latch (85) is adapted to the size of the circular hole (86).
6. A valve for controlling hydrogen fuel pressure according to claim 5, characterized in that: The arc surface of the latch pin (85) is fixedly connected to a circular plate (87), and the arc surface of the latch pin (85) is sleeved with a second spring (88), and the two ends of the second spring (88) are respectively fixedly connected to the circular plate (87) and the support arm (81).
7. A valve for controlling hydrogen fuel pressure according to claim 5, characterized in that: A limiting plate (89) is fixedly connected to the surface of the support arm (81).