Unloading valve with protection function

Abstract

The utility model discloses a kind of unloading valves with protection function, including valve body, shell protection mechanism, locking clamping mechanism and clamping auxiliary mechanism, the shell protection mechanism includes bottom plate and rotating plate, the locking clamping mechanism includes clamping pipe and clamping rod, the clamping auxiliary mechanism includes outer swivel frame and swivel plate, shell protection mechanism adopts bottom plate, rotating plate and top plate and is composed of openable and closable shell structure, cooperate rubber layer on two sides, provide all-round physical protection, the symmetrical rotation design of rotating plate is convenient for quick opening and closing, maintenance operation is simplified, locking clamping mechanism is cooperated by clamping rod and clamping pipe, in combination with the design of anti-pull spring rod and friction frame, reliable locking function is realized, and multiple parallelly opened friction clamping grooves increase clamping point, improve connection stability.

Description

Technical Field

[0001] This utility model relates to the field of unloading valve technology, and more specifically, to an unloading valve with protective function. Background Technology

[0002] In existing technologies, unloading valves with protective functions are widely used in many industrial equipment, especially in hydraulic and pneumatic systems, to control pressure in the system and prevent overpressure damage to the equipment. Although these unloading valves are designed to effectively control pressure, in practical applications, the protective effect of the valve body is often unsatisfactory, and the process of sealing and disassembling the housing is not convenient enough. This leads to significant challenges in system maintenance, repair, and replacement of the valve body.

[0003] Lack of adequate protective measures: Many unloading valves are not designed with the external environment in mind, and are not susceptible to corrosion, impact, or vibration affecting the valve body. Especially in harsh working environments, the valve body is easily damaged by external factors, leading to corrosion, wear, or deformation, thereby affecting its function.

[0004] Many unloading valves use complex threaded connections, welding, or other securing methods to encapsulate their bodies. While this encapsulation method ensures the valve body is secure, it makes disassembly extremely cumbersome. Especially when the equipment requires maintenance or valve body replacement, the disassembly process consumes a significant amount of time and manpower, and improper disassembly can potentially damage the valve body or other components. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides an unloading valve with protective function to solve the technical problems mentioned in the background art, such as poor protection effect of valve body and inconvenient packaging and disassembly of shell.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a protective unloading valve, comprising a valve body, a shell protection mechanism, a locking and engaging mechanism, and an engaging auxiliary mechanism. The shell protection mechanism includes a base plate and a rotating plate, the rotating plate being symmetrically rotated and installed on both sides of the base plate. A top plate is installed at the top end of the rotating plate, and a longitudinal fixing plate is installed at the top end of the top plate. The rotating plate, the top plate, and the base plate form a shell, and rubber layers are installed on both sides of the shell. The locking and engaging mechanism includes a locking tube and a locking rod. A friction groove is formed on the outer wall of the locking rod. A counter-tension spring rod is laterally slidably installed on the side wall of the locking tube, and the counter-tension spring rods are arranged in multiple pairs. A friction frame is connected between the pairs of counter-tension spring rods. A longitudinal pressure sleeve is longitudinally slidably installed on the outer wall of the locking tube, and a release groove is formed on the inner wall of the longitudinal pressure sleeve. The longitudinal pressure sleeve presses against the counter-tension spring rod, causing the friction frame to embed into the friction groove.

[0009] The present invention is further configured such that the snap-fit ​​auxiliary mechanism includes an outer rotating frame and a fixed plate. The outer rotating frame is rotatably mounted on the outer wall of the snap-fit ​​tube. Multiple sets of fixed plates are mounted on the top end of the outer rotating frame. A positioning spring is slidably mounted on the outer wall of the snap-fit ​​tube, and the positioning spring is arranged in multiple annular rings. A spiral groove is opened on the outer wall of the longitudinal pressure sleeve. The outer rotating frame is slidably connected to the spiral groove. The rotation of the outer rotating frame causes the longitudinal pressure sleeve to move longitudinally. At the same time, the multiple sets of fixed plates rotate in annular rings. The positioning springs are embedded into the fixed plates step by step, so that the outer rotating frame rotates stably.

[0010] The present invention is further configured such that buttons are installed at both ends of the rotating plate, and the rubber layer is installed at both ends of the housing via the buttons. The buttons are installed at both ends of the rotating plate, which facilitates the installation and replacement of the rubber layer and enhances its practicality.

[0011] The present invention is further provided that a connecting plate is installed at the bottom end of the side wall of the clamping tube, and the connecting plate is fixedly installed on the longitudinal fixing plate. The connecting plate fixes the clamping tube to the longitudinal fixing plate, thereby enhancing the structural stability and preventing loosening during use.

[0012] The present invention is further configured such that the locking rod is slidably mounted on the longitudinal fixing plate, and a pressing plate is installed at one end of the locking rod. The locking rod is slidably mounted on the longitudinal fixing plate to achieve a reliable plug-in connection and simplify the locking operation.

[0013] The present invention is further configured such that a push-out spring is installed on one end face of the pressing plate, and one end of the push-out spring is connected to one end face of the longitudinal fixing plate. The push-out spring connects the pressing plate and the longitudinal fixing plate, providing an automatic rebound function and enhancing the convenience of operation.

[0014] The present invention is further configured such that the movement of the pressing plate causes the locking rod to slide on the longitudinal fixing plate, so that one end of the locking rod passes through another set of longitudinal fixing plates and engages with the locking tube. The pressing plate is installed on one end of the locking rod, which facilitates manual operation and improves the human-computer interaction experience.

[0015] The present invention is further configured such that the friction groove is provided in multiple sets, and the multiple sets of friction grooves are opened in parallel. The multiple sets of friction grooves are opened in parallel on the outer wall of the connecting rod, thereby increasing the number of contact points and improving the reliability and stability of the connection.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a relief valve with protective function, which has the following beneficial effects:

[0018] This utility model is equipped with an outer shell protection mechanism. The outer shell protection mechanism consists of a bottom plate, a rotating plate, and a top plate, forming an openable shell structure. Combined with the rubber layers on both sides, it provides all-round physical protection. The symmetrical rotation design of the rotating plate facilitates quick opening and closing, simplifying maintenance operations. The rubber layers with button connections not only enhance shock absorption and cushioning functions but also facilitate replacement, improving the equipment's adaptability and service life in harsh environments. At the same time, it protects the valve body from external impacts and contamination.

[0019] This utility model is equipped with a locking and latching mechanism. The locking and latching mechanism achieves a reliable locking function through the cooperation of the latching rod and the latching tube, combined with the design of the anti-tension spring rod and the friction frame. Multiple sets of parallel friction slots increase the number of latching points and improve the connection stability. The ingenious design of the longitudinal pressure sleeve and the release groove simplifies the locking and unlocking operation. The cooperation of the pressing plate and the ejection spring provides convenient manual operation and automatic rebound function, which greatly improves the human-machine interaction experience and operation safety.

[0020] This utility model is equipped with a locking auxiliary mechanism. The locking auxiliary mechanism uses the cooperation between the outer rotating frame and the spiral groove to accurately convert the rotational motion into the longitudinal movement of the longitudinal pressure sleeve, thereby realizing precise control of the locking system. Multiple sets of rotating plates and the ring-shaped positioning spring work together to provide segmented positioning function, ensuring that the rotation of the outer rotating frame is stable and controllable, preventing accidental loosening. This not only improves the reliability of the unloading valve locking system, but also makes the operation more precise and convenient, and reduces the possibility of operational errors. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the shell in this utility model;

[0023] Figure 3 This is a structural schematic diagram of the connection method between adjacent top plates in this utility model;

[0024] Figure 4 This is a schematic diagram of the locking mechanism and the locking auxiliary mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the locking mechanism and the locking auxiliary mechanism in this utility model.

[0026] In the diagram: 1. Valve body; 2. Base plate; 3. Rotating plate; 4. Top plate; 5. Longitudinal fixing plate; 6. Rubber layer; 7. Snap-fit ​​pipe; 8. Snap-fit ​​rod; 9. Friction groove; 10. Reverse tension spring rod; 11. Friction frame; 12. Longitudinal pressure sleeve; 13. Release groove; 14. External rotation frame; 15. Rotating plate; 16. Positioning spring; 17. Spiral groove; 18. Button; 19. Connecting plate; 20. Pressing plate; 21. Push-out spring. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A protective unloading valve includes a valve body 1, a shell protection mechanism, a locking and engaging mechanism, and an engaging auxiliary mechanism. The shell protection mechanism includes a base plate 2 and a rotating plate 3. The rotating plate 3 is symmetrically rotated and installed on both sides of the base plate 2. A top plate 4 is installed on the top end of the rotating plate 3, and a longitudinal fixing plate 5 is installed on the top end of the top plate 4. The rotating plate 3, the top plate 4, and the base plate 2 form a shell, and rubber layers 6 are installed on both sides of the shell. The locking and engaging mechanism includes a locking tube 7 and a locking rod 8. A friction groove 9 is opened on the outer wall of the locking rod 8. A counter-tension spring rod 10 is laterally slidably installed on the side wall of the locking tube 7. The counter-tension spring rods 10 are arranged in multiple pairs, and a friction frame 11 is connected between the pairs of counter-tension spring rods 10. A longitudinal pressure sleeve 12 is longitudinally slidably installed on the outer wall of the locking tube 7. A release groove 13 is opened on the inner wall of the longitudinal pressure sleeve 12. The longitudinal pressure sleeve 12 presses against the counter-tension spring rod 10, so that the friction frame 11 is embedded in the friction groove 9.

[0031] In this embodiment, the outer shell protection mechanism adopts a symmetrical design. The base plate 2 serves as the basic support, and the rotating plates 3 on both sides can rotate symmetrically. During operation, the rotating plates 3 can be opened or closed, similar to an openable shell. When the rotating plates 3 are closed, they together with the top plate 4 form a closed protective shell, enclosing the valve body 1 inside. The rubber layers 6 on both sides of the housing are installed by buttons 18, providing cushioning and protection, absorbing external impact, and protecting the internal valve body 1. When operation or maintenance is required, the rotating plate 3 can be flipped outward to facilitate access to internal components. The locking mechanism achieves reliable connection of components through the locking tube 7 and the locking rod 8. During operation, the pressing plate 20 is pushed, causing the locking rod 8 to slide on the longitudinal fixing plate 5, so that the locking rod 8 passes through another set of longitudinal fixing plates 5 and is inserted into the locking tube 7. Multiple sets of parallel friction grooves 9 on the outer wall of the locking rod 8 cooperate with the anti-tension spring rod 10 in the locking tube 7. When the longitudinal pressure sleeve 12 moves, it presses against the anti-tension spring rod 10, so that the friction frame 11 between the pairs of anti-tension spring rods 10 is embedded in the friction groove 9 of the locking rod 8, forming a stable locking state. When unlocking is required, the longitudinal pressure sleeve 12 moves in the opposite direction, and the release groove 13 on the inner wall aligns with the anti-tension spring rod 10, releasing the locking rod 8.

[0032] The locking auxiliary mechanism includes an outer rotating frame 14 and a locking plate 15. The outer rotating frame 14 is rotatably mounted on the outer wall of the locking tube 7. Multiple sets of locking plates 15 are mounted on the top end of the outer rotating frame 14. Positioning springs 16 are slidably mounted on the outer wall of the locking tube 7, and the positioning springs 16 are arranged in multiple rings. A spiral groove 17 is opened on the outer wall of the longitudinal pressure sleeve 12. The outer rotating frame 14 is slidably connected to the spiral groove 17. The rotation of the outer rotating frame 14 causes the longitudinal pressure sleeve 12 to move longitudinally. At the same time, the multiple sets of locking plates 15 rotate in rings. The positioning springs 16 are embedded into the locking plates 15 step by step, so that the outer rotating frame 14 rotates stably.

[0033] In this embodiment, the locking auxiliary mechanism controls the longitudinal movement of the longitudinal pressure sleeve 12 by rotating the outer rotating frame 14. During operation, the outer rotating frame 14 rotates and, through cooperation with the spiral groove 17 on the outer wall of the longitudinal pressure sleeve 12, converts the rotational motion into the up-and-down movement of the longitudinal pressure sleeve 12. At the same time, the multiple sets of fixed plates 15 on the top of the outer rotating frame 14 rotate in a ring, and the positioning springs 16 are embedded in the fixed plates 15 step by step to provide segmented positioning function, making the rotation of the outer rotating frame 14 more stable and controllable, providing precise control, and making the locking and unlocking operations more convenient and reliable.

[0034] Please see Figures 1-5As a supplementary embodiment of the unloading valve with protective function for the outer shell protection mechanism, locking mechanism and locking auxiliary mechanism: Buttons 18 are installed at both ends of the rotating plate 3, and the rubber layer 6 is installed at both ends of the shell through the buttons 18. A connecting plate 19 is installed at the bottom end of the side wall of the locking tube 7, and the connecting plate 19 is fixedly installed on the longitudinal solid plate 5. The locking rod 8 is slidably installed on the longitudinal solid plate 5, and a pressing plate 20 is installed at one end of the locking rod 8. A push-out spring 21 is installed on one end face of the pressing plate 20, and one end of the push-out spring 21 is connected to one end face of the longitudinal solid plate 5. The movement of the pressing plate 20 causes the locking rod 8 to slide on the longitudinal solid plate 5, so that one end of the locking rod 8 passes through another set of longitudinal solid plates 5 and engages with the locking tube 7. Multiple sets of friction grooves 9 are provided, and the multiple sets of friction grooves 9 are opened in parallel.

[0035] More specifically, with the outer casing protection mechanism in the closed state, the rotating plate 3 and the top plate 4 form a closed shell, and the rubber layer 6 provides protection. Rotating the outer rotating frame 14 causes the longitudinal pressure sleeve 12 to move upward through the spiral groove 17. The release groove 13 on the inner wall of the longitudinal pressure sleeve 12 aligns with the anti-tension spring rod 10, releasing the lock. The friction frame 11 disengages from the friction slot 9, and the locking rod 8 and the locking tube 7 are released from fixation. The rotating plate 3 is opened, exposing the internal valve body 1 assembly. The push-out spring 21 pushes the locking rod 8 back, and the pressing plate 20 returns to its position, allowing the unloading valve to be operated or maintained. The rotating plate 3 is closed, and the shell returns to the closed state. Pressing the pressing plate 20 compresses the push-out spring 21, causing the locking rod 8 to pass through the longitudinal fixing plate 5 and enter the locking tube 7. Rotating the outer rotating frame 14 causes the longitudinal pressure sleeve 12 to move downward and press against the anti-tension spring rod 10. The friction frame 11 is embedded in the friction slot 9, locking the locking rod 8 and the locking tube 7. The positioning spring 16 is embedded in the rotating plate 15 to ensure the stability of the outer rotating frame 14.

[0036] In summary, during the use or operation of the overall equipment: when the outer casing protection mechanism is required, the outer casing protection mechanism adopts a symmetrical design, with the base plate 2 serving as the basic support, and the rotating plates 3 on both sides able to rotate symmetrically. During operation, the rotating plates 3 can be opened or closed, similar to an openable and closable shell. When the rotating plates 3 are closed, they together with the top plate 4 form a closed protective shell, enclosing the valve body 1 inside. The rubber layers 6 on both sides of the shell are installed by buttons 18, providing buffering and protection functions, absorbing external impact forces, and protecting the internal valve body 1. When operation or maintenance is required, the rotating plates 3 can be flipped outward to facilitate access to the internal components.

[0037] When the locking mechanism needs to be operated, the locking mechanism achieves a reliable connection between the components through the locking tube 7 and the locking rod 8. During operation, the pressing plate 20 is pushed, causing the locking rod 8 to slide on the longitudinal fixing plate 5, so that the locking rod 8 passes through another set of longitudinal fixing plates 5 and is inserted into the locking tube 7. The multiple sets of parallel friction grooves 9 on the outer wall of the locking rod 8 cooperate with the anti-tension spring rod 10 in the locking tube 7. When the longitudinal pressure sleeve 12 moves, it presses against the anti-tension spring rod 10, so that the friction frame 11 between the pairs of anti-tension spring rods 10 is embedded in the friction groove 9 of the locking rod 8, forming a stable locking state. When unlocking is required, the longitudinal pressure sleeve 12 moves in the opposite direction, and the release groove 13 on the inner wall aligns with the anti-tension spring rod 10, releasing the locking rod 8.

[0038] When the locking auxiliary mechanism is in operation, it controls the longitudinal movement of the longitudinal pressure sleeve 12 by rotating the outer rotating frame 14. During operation, the outer rotating frame 14 rotates and, through its engagement with the spiral groove 17 on the outer wall of the longitudinal pressure sleeve 12, converts the rotational motion into the up-and-down movement of the longitudinal pressure sleeve 12. At the same time, the multiple sets of fixed plates 15 on the top of the outer rotating frame 14 rotate in a ring, and the positioning springs 16 are embedded in the fixed plates 15 step by step, providing segmented positioning function, making the rotation of the outer rotating frame 14 more stable and controllable, providing precise control, and making the locking and unlocking operations more convenient and reliable.

[0039] With the outer casing protection mechanism in the closed state, the rotating plate 3 and the top plate 4 form a closed shell, and the rubber layer 6 provides protection. Rotating the outer rotating frame 14 causes the longitudinal pressure sleeve 12 to move upward through the spiral groove 17. The release groove 13 on the inner wall of the longitudinal pressure sleeve 12 aligns with the anti-tension spring rod 10, releasing the lock. The friction frame 11 disengages from the friction slot 9, and the locking rod 8 and the locking tube 7 are released from fixation. The rotating plate 3 is opened, exposing the internal valve body 1 assembly. The push-out spring 21 pushes the locking rod 8 back, and the pressing plate 20 returns to its position, allowing for the operation or maintenance of the unloading valve. The rotating plate 3 is closed, and the shell returns to the closed state. Pressing the pressing plate 20 compresses the push-out spring 21, causing the locking rod 8 to pass through the longitudinal fixing plate 5 and enter the locking tube 7. Rotating the outer rotating frame 14 causes the longitudinal pressure sleeve 12 to move downward and press against the anti-tension spring rod 10. The friction frame 11 is embedded in the friction slot 9, locking the locking rod 8 and the locking tube 7. The positioning spring 16 is embedded in the rotating plate 15 to ensure the stability of the outer rotating frame 14.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0041] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise explicitly described, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here. In all the solutions mentioned above, those involving motors can be used with a reducer if necessary. The connection structure and working principle between the motor and the reducer are existing, well-known technologies, and will not be elaborated here.

Claims

1. A relief valve with protective function, comprising a valve body (1), a shell protection mechanism, a locking mechanism, and a locking auxiliary mechanism, characterized in that: The outer shell protection mechanism includes a base plate (2) and a rotating plate (3). The rotating plate (3) is symmetrically rotated and installed on both sides of the base plate (2). A top plate (4) is installed on the top end of the rotating plate (3), and a longitudinal fixing plate (5) is installed on the top end of the top plate (4). The rotating plate (3), the top plate (4), and the base plate (2) form a shell, and rubber layers (6) are installed on both sides of the shell. The locking and snapping mechanism includes a snap-fit ​​tube (7) and a snap-fit ​​rod (8). Friction grooves are opened on the outer wall of the snap-fit ​​rod (8). The card slot (9) and the side wall of the card tube (7) are laterally slidably provided with a counter-tension spring rod (10), and the counter-tension spring rod (10) is arranged in multiple pairs, and a friction frame (11) is connected between the pairs of counter-tension spring rods (10). A longitudinal pressure sleeve (12) is longitudinally slidably provided on the outer wall of the card tube (7), and a release groove (13) is opened on the inner wall of the longitudinal pressure sleeve (12). The longitudinal pressure sleeve (12) presses against the counter-tension spring rod (10), so that the friction frame (11) is embedded in the friction card slot (9).

2. The unloading valve with protective function according to claim 1, characterized in that: The locking auxiliary mechanism includes an outer rotating frame (14) and a fixed plate (15). The outer rotating frame (14) is rotatably mounted on the outer wall of the locking tube (7). Multiple fixed plates (15) are mounted on the top end of the outer rotating frame (14). A positioning spring (16) is slidably mounted on the outer wall of the locking tube (7), and the positioning spring (16) is arranged in multiple rings. A spiral groove (17) is opened on the outer wall of the longitudinal pressure sleeve (12). The outer rotating frame (14) and the spiral groove (17) are slidably connected. The rotation of the outer rotating frame (14) causes the longitudinal pressure sleeve (12) to move longitudinally.

3. The unloading valve with protective function according to claim 1, characterized in that: Buttons (18) are installed at both ends of the rotating plate (3), and the rubber layer (6) is installed at both ends of the housing through the buttons (18).

4. The unloading valve with protective function according to claim 1, characterized in that: A connecting plate (19) is installed at the bottom of the side wall of the clamping pipe (7), and the connecting plate (19) is fixedly installed on the longitudinal fixing plate (5).

5. The unloading valve with protective function according to claim 1, characterized in that: The locking rod (8) is slidably mounted on the longitudinal fixing plate (5), and a pressing plate (20) is installed at one end of the locking rod (8).

6. A relief valve with protective function according to claim 5, characterized in that: One end face of the pressing plate (20) is provided with a push spring (21), and one end of the push spring (21) is connected to one end face of the longitudinal fixing plate (5).

7. A relief valve with protective function according to claim 5, characterized in that: The movement of the pressing plate (20) causes the locking rod (8) to slide on the longitudinal fixing plate (5), so that one end of the locking rod (8) passes through another set of longitudinal fixing plates (5) and engages with the locking tube (7).

8. A relief valve with protective function according to claim 1, characterized in that: The friction slots (9) are provided in multiple sets, and the multiple sets of friction slots (9) are opened in parallel.

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