A compressor exhaust valve

Abstract

This utility model belongs to the field of compressor technology, specifically referring to a compressor exhaust valve; it includes a valve cover with an exhaust port, a valve seat with an exhaust passage, an exhaust assembly consisting of a valve plate and a first reset member, and an overpressure protection assembly evenly distributed between the valve cover and the valve seat. The overpressure protection assembly includes a guide screw with its lower end fixed to the valve seat and its smooth section passing through the valve cover, a second reset member sleeved on the screw, and a top limiting component; under normal conditions, air pressure pushes open the valve plate to allow exhaust, and under overpressure, air pressure drives the valve cover to move upward along the screw, compressing the reset member, causing the contact surface between the valve cover and the valve seat to separate and form a pressure relief gap. This utility model integrates fixing, guiding, and elastic support functions by reusing the guide screw, replacing the traditional independent pressure relief valve and significantly simplifying the overpressure protection structure.

Description

Technical Field

[0001] This utility model belongs to the field of compressor technology, and specifically refers to a compressor exhaust valve. Background Technology

[0002] The compressor discharge valve is a core functional component of various compressors. It is mainly used to control the discharge of compressed fluid media in a predetermined direction and prevent backflow of fluid. It plays a key role in the precise control of fluid flow and pressure stability in the compressor, and its performance directly affects the compressor's operating efficiency, energy consumption and service life.

[0003] In existing technologies, the overpressure protection function of compressor discharge valves typically relies on independent pressure relief devices, such as dedicated pressure relief valves connected in series or parallel alongside the discharge passage. These structures often include multiple components, including the valve body, valve core, trigger spring, seals, and connecting pipes. For example, some overpressure protection designs add a diaphragm-type safety relief valve to the outside of the discharge valve. When the system is overpressured, the diaphragm ruptures or the valve core is pushed open to relieve pressure. However, this structure requires separate installation space, and the movement of the diaphragm or valve core needs to be linked to the main discharge valve through a complex force transmission mechanism. This not only results in a bulky overall structure and cumbersome assembly processes, but also suffers from slow response, poor sealing reliability, and high maintenance costs, making it difficult to meet the integrated and lightweight design requirements of compact compressors. Utility Model Content

[0004] This utility model provides an overpressure protection assembly consisting of a guide screw, a second reset component, and a limiting component between the valve cover and the valve seat. Combined with the exhaust assembly, it achieves the function of normal exhaust and valve cover displacement to form a pressure relief gap during overpressure with a simple structure, thereby alleviating the problems mentioned in the background art.

[0005] The purpose of this utility model is achieved as follows: a compressor exhaust valve, comprising:

[0006] The valve cover is equipped with an exhaust port;

[0007] The valve seat is located below the valve cover and has an exhaust passage.

[0008] An exhaust assembly includes a valve plate located at the bottom of a valve cover and a first reset member, wherein the valve plate closes the exhaust channel outlet through the first reset member;

[0009] The overpressure protection assembly is evenly distributed between the valve cover and the valve seat, including a guide screw with its lower end fixed to the valve seat and its upper end smooth rod section passing through the valve cover, and a second reset member sleeved on the smooth rod section. The lower end of the second reset member abuts against the valve cover, and the upper end abuts against the top of the guide screw.

[0010] Under normal conditions, air pressure pushes the valve plate to open, connecting the exhaust channel with the exhaust port. When there is overpressure, air pressure drives the valve cover to move upward along the smooth rod section, compressing the second reset component, causing the valve cover and valve seat contact surfaces to separate and form a pressure relief gap.

[0011] The present invention is further configured such that a positioning sleeve is provided between the smooth section of the guide screw and the valve cover, and the positioning sleeve is in clearance fit with the smooth section.

[0012] The present invention is further configured such that the limiting component is a locking nut screwed to the top of the guide screw rod section, used to adjust the preload of the second reset component.

[0013] The present invention is further configured such that an auxiliary connecting member is provided between the valve seat and the valve cover, the auxiliary connecting member comprising:

[0014] Tighten the locking bolts from the top of the valve cover to the inside of the valve cover;

[0015] A conical plug is inserted into the valve cover from the bottom of the valve seat and abuts against the locking bolt.

[0016] The present invention is further configured such that the bottom of the valve cover is provided with an exhaust groove communicating with the exhaust hole, one end of the first reset member is fixed to the top of the exhaust groove, and the other end is connected to the valve plate.

[0017] The present invention is further configured such that the first reset element is a spring sheet.

[0018] The present invention is further configured such that the top of the valve cover is provided with a receiving groove that provides working space for the second reset member, the bottom of the receiving groove is provided with an annular boss, and the lower end of the second reset member is sleeved on the outer periphery of the annular boss.

[0019] The present invention is further configured such that the second reset member is a helical spring or a disc spring, the lower end of which abuts against the bottom of the receiving groove and the upper end of which abuts against the limiting member.

[0020] By adopting the above technical solution, the beneficial effects that this utility model can achieve are:

[0021] 1. By cooperating with the guide screw, the second reset component and the limiting component, the valve cover moves upward along the screw to form a pressure relief gap when overpressure occurs, replacing the traditional independent pressure relief device, simplifying the overpressure protection structure and solving the problem of the complexity of the existing structure.

[0022] 2. By using the clearance fit between the positioning sleeve and the guide screw's smooth section, the valve cover's movement direction is restricted, avoiding uneven wear, which improves the stability of overpressure protection action and component lifespan, and solves the problem of unstable guidance.

[0023] 3. By screwing the locking nut and the guide screw together, the preload of the second reset component can be adjusted to set the pressure relief threshold, which solves the problem that the pressure relief pressure is not easy to adjust and adapts to different working conditions. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of the overvoltage protection component of this utility model;

[0026] Figure 3 This is a utility model Figure 1 A magnified structural diagram of part A;

[0027] Figure 4 This is a schematic diagram of the structure of this utility model in its normal state;

[0028] Figure 5 This is a schematic diagram of the structure of this utility model under overpressure.

[0029] The attached figures are labeled as follows: 1. Valve cover; 2. Exhaust port; 3. Valve seat; 4. Exhaust passage; 5. Exhaust assembly; 50. Valve plate; 51. First reset component; 6. Overpressure protection assembly; 60. Guide screw; 61. Second reset component; 62. Limiting component; 7. Pressure relief gap; 8. Positioning sleeve; 9. Auxiliary connecting component; 90. Locking bolt; 91. Conical plug; 10. Exhaust groove; 11. Receiving groove; 12. Annular boss. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-5 :

[0031] Example 1:

[0032] This embodiment provides a compressor discharge valve, including:

[0033] Valve cover 1 is provided with vent hole 2;

[0034] Valve seat 3 is located below valve cover 1 and is provided with exhaust passage 4;

[0035] The exhaust assembly 5 includes a valve plate 50 disposed at the bottom of the valve cover 1 and a first reset member 51, wherein the valve plate 50 closes the outlet of the exhaust channel 4 through the first reset member 51;

[0036] The overpressure protection assembly 6 is evenly distributed between the valve cover 1 and the valve seat 3, including a guide screw 60 whose lower end is fixed to the valve seat 3 and whose upper end smooth rod section passes through the valve cover 1, and a second reset member 61 sleeved on the smooth rod section. The lower end of the second reset member 61 abuts against the valve cover 1 and the upper end abuts against the top of the guide screw 60.

[0037] Under normal conditions, air pressure pushes the valve plate 50 to open, so that the exhaust channel 4 is connected to the exhaust hole 2. When there is overpressure, air pressure drives the valve cover 1 to move upward along the smooth rod section to compress the second reset piece 61, so that the contact surface between the valve cover 1 and the valve seat 3 is separated to form a pressure relief gap 7.

[0038] The valve cover 1 serves as the mounting carrier for the venting assembly 5 and the overpressure protection assembly 6, providing a venting passage and forming a pressure relief gap 7 through its own displacement during overpressure. Simultaneously, it cooperates with the valve seat 3 to achieve a seal under normal conditions. The valve cover 1 typically has an annular structure with a through vent 2 on its top or side. The valve cover 1 is located directly above the valve seat 3. Under normal conditions, the contact surfaces of the valve cover 1 and the valve seat 3 are pressed together to form a seal. During overpressure, the valve cover 1 moves upward through the overpressure protection assembly 6, causing the contact surfaces to separate and forming the pressure relief gap 7.

[0039] Vent 2 serves as the outlet for the fluid medium, guiding the medium controlled by vent passage 4 and valve plate 50 to the external pipeline, and is the end of the vent path. Vent 2 is located on the top of valve cover 1, forming a fluid path with vent passage 4 of valve seat 3 when valve plate 50 is open.

[0040] The valve seat 3 serves as the carrier of the exhaust passage 4 and supports the valve cover 1, while also fixing the guide screw 60 of the overpressure protection component 6. The valve seat 3 has a ring-shaped structure with a through exhaust passage 4 inside. The lower end of the valve seat 3 is fixedly connected to the compressor by bolts, and the upper end is connected to the valve cover 1 by the overpressure protection component 6. The lower end of the guide screw 60 is fixed inside the valve seat 3.

[0041] The exhaust assembly 5 is used to control the opening and closing of the exhaust passage 4. Under normal conditions, the outlet of the exhaust passage 4 is closed by the action of the first reset member 51. When the medium pressure reaches a set value, it is pushed open to allow the medium to pass through. After the pressure drops, it is reset and closed by the action of the first reset member 51 to prevent backflow. The exhaust assembly 5 consists of a valve plate 50 and a first reset member 51, forming a valve structure that can be elastically opened and closed.

[0042] The valve plate 50 directly closes or opens the outlet of the exhaust channel 4, controlling the flow of the medium through its own opening and closing action. The valve plate 50 has a plate-like structure, and its shape is adapted to the outlet of the exhaust channel 4 to ensure that the outlet of the exhaust channel 4 can be closed. The valve plate 50 is connected to the valve cover 1 through the first reset member 51, located between the bottom of the valve cover 1 and the top of the valve seat 3, facing the outlet of the exhaust channel 4, and can move axially under the action of medium pressure and the elastic force of the first reset member 51.

[0043] The first reset element 51 provides a reset force to the valve plate 50. Under normal conditions, it pushes the valve plate 50 to close the outlet of the exhaust channel 4. After the exhaust is completed, it pulls the valve plate 50 to reset, ensuring that the channel is reliably closed and preventing backflow of the medium. The first reset element 51 has a certain elastic deformation capability. Its two ends can be fixedly connected to the valve cover 1 and the valve plate 50 by welding, respectively. The reset action of the valve plate 50 is achieved by its own elastic deformation.

[0044] When overpressure occurs, the overpressure protection component 6 separates the bottom of the valve cover 1 from the top of the valve seat 3, forming an annular pressure relief gap and triggering a pressure relief action to release the overpressure medium. The valve cover 1 resets after the pressure recovers. The overpressure protection component 6 consists of a guide screw 60, a second reset component 61, and a limiting component 62, evenly distributed in the edge area between the valve cover 1 and the valve seat 3. Typically, there are 2-4 sets, evenly distributed in a ring around the center of the valve cover, forming a symmetrical elastic support structure that does not obstruct the exhaust passage 4 and the exhaust port 2.

[0045] The guide screw 60 guides the displacement of the valve cover 1, ensuring smooth axial movement of the valve cover 1. Its lower end is fixed to the valve seat 3, and its upper end is constrained by the limiting component 62 to restrain the second reset component 61. The guide screw 60 has a rod-like structure, with a threaded section at the lower end for fixed connection with the valve seat 3 and a smooth rod section at the upper end for guidance. Its overall length is adapted to the movement stroke of the valve cover 1. The guide screw 60 is threaded to the valve seat 3, and the smooth rod section at the upper end is clearance-fitted with the through hole of the valve cover 1. The limiting component 62 is installed at the top.

[0046] The second reset component 61 provides elastic support for the valve cover 1. Under normal conditions, the valve cover 1 and the valve seat 3 are tightly fitted together by the elastic preload to ensure close contact between them. When overpressure occurs, it is compressed and stores elastic potential energy, forming a pressure relief gap 7 between the valve cover 1 and the valve seat 3. After the pressure is restored, the potential energy is released to reset the valve cover 1. The lower end of the second reset component 61 can be fixed to the top of the valve cover 1 by welding, and the upper end abuts against the limiting component 62, transmitting elastic force through the abutment of the two ends.

[0047] The limiting component 62 is used to limit the axial position of the second reset component 61 to prevent it from falling off the guide screw 60 smooth section, and at the same time provide an upper support point for the second reset component 61 to ensure its compression and reset action is stable.

[0048] Under normal conditions, the pressure of the medium discharged from the compressor acts on the valve plate 50. When the pressure exceeds the elastic force of the first reset member 51, the valve plate 50 is pushed open and separated from the outlet of the exhaust channel 4. The medium flows into the valve cover 1 area through the gap between the exhaust channel 4, the valve plate 50, and the channel, and is finally discharged to the external pipeline through the exhaust hole 2. At this time, the second reset member 61 in the overpressure protection assembly 6 is in a pre-compression state, and its elastic force pushes the valve cover 1 and the valve seat 3 to fit tightly together, forming a seal.

[0049] When there is overpressure, the thrust of the overpressure medium on the valve cover 1 is greater than the elastic force of the second reset member 61, driving the valve cover 1 to move upward along the smooth section of the guide screw 60, compressing the second reset member 61; the contact surface between the valve cover 1 and the valve seat 3 then separates, forming an annular pressure relief gap 7, through which the overpressure medium can be directly released, reducing the system pressure. When the pressure drops to a safe range, the elastic force of the second reset member 61 pushes the valve cover 1 downward to reset, re-sealing it against the valve seat 3, and the pressure relief stops.

[0050] A positioning sleeve 8 is provided between the smooth section of the guide screw 60 and the valve cover 1, and the positioning sleeve 8 is clearance-fitted with the smooth section. The positioning sleeve 8 is a cylindrical structure with its bottom welded and fixed to the valve seat 3, and its inner diameter is adapted to the smooth section of the guide screw 60. This design makes the positioning sleeve 8 a guide between the valve cover 1 and the smooth section. Through its fixed connection with the valve seat 3 and clearance fit with the smooth section, it provides precise guidance for the axial movement of the valve cover 1, restricts the radial displacement of the valve cover 1 during movement, and avoids problems such as uneven wear and jamming caused by direct contact between the valve cover 1 and the smooth section. This ensures that the valve cover 1 can smoothly move upward along the smooth section to form a pressure relief gap 7 when overpressure occurs, and can accurately reset and seal against the valve seat 3 after the pressure is restored, further improving the reliability of the overpressure protection function and the service life of the components.

[0051] The limiting component 62 is a locking nut screwed onto the top of the smooth section of the guide screw 60, used to adjust the preload of the second reset component 61. In this design, the limiting component 62 allows for flexible adjustment of the preload of the second reset component 61, thereby controlling the trigger pressure of the overpressure protection and improving the adaptability of the exhaust valve to different operating conditions. The locking nut is a hexagonal nut with internal threads, whose threads match the external threads at the top of the smooth section of the guide screw 60, forming a detachable connection with the guide screw 60 through a threaded connection. This structure and connection method allow the locking nut to move axially along the guide screw 60. When the locking nut is tightened downwards, the washer or other components at the bottom of the locking nut compress the second reset component 61, increasing its preload, requiring higher pressure to push the valve cover 1 upwards to release pressure; when the locking nut is loosened upwards, the compression of the second reset component 61 decreases, the preload decreases, and the pressure release trigger pressure is adjusted accordingly. This design allows for adjustment of the overpressure protection threshold without replacing components, solving the problem of fixed pressure parameters and difficulty in adapting to different compressors or fluid media requirements in traditional overpressure protection structures. Simultaneously, the reliability of the threaded connection ensures that the locking nut will not loosen under long-term vibration and pressure shocks, guaranteeing stability after preload adjustment. This allows the exhaust valve to reliably seal under normal operating conditions and trigger protection during overpressure, further enhancing the practicality and reliability of the overall structure.

[0052] An auxiliary connector 9 is provided between the valve seat 3 and the valve cover 1. The auxiliary connector 9 includes a locking bolt 90 screwed from the top of the valve cover 1 into the valve cover 1, and a conical plug 91 interference-fitted into the valve cover 1 from the bottom of the valve seat 3, abutting against the locking bolt 90. In this design, the cooperation between the locking bolt 90 and the conical plug 91 enhances the connection sealing and structural stability of the valve seat 3 and the valve cover 1 under normal conditions, while not affecting the normal displacement function of the valve cover 1 under overpressure. The locking bolt 90 is a rod-shaped structure with external threads. The head is hexagonal or circular for easy screwing with tools, and the rod body has external threads that match the internal threads of the valve cover 1. It is fixed by a threaded connection that screws into the top of the valve cover 1 and extends into the interior of the valve cover 1. The conical plug 91 has a structure with a straight upper section and a conical lower section. It is interference-fitted into the corresponding reserved hole in the valve cover 1 from the through hole at the bottom of the valve seat 3, and its top end abuts against the lower end of the locking bolt 90. This "bolt tightening + cone plug 91 interference fit" connection method creates a two-way force. The downward pressure of the locking bolt 90 and the upward tightening force generated by the cone plug 91 due to the interference fit work together to ensure a tight fit between the valve seat 3 and the valve cover 1, improving the sealing effect under normal conditions and preventing the medium from leaking from the gaps in the contact surface. When overpressure occurs, the valve cover 1 moves upward under the thrust of the medium, and the locking bolt 90 moves synchronously with the valve cover 1. The interference fit between the cone plug 91 and the valve cover 1 does not hinder the movement of the valve cover 1 to form the pressure relief gap 7. This design solves the problems of traditional rigid connections affecting the overpressure protection action or relying solely on the pre-tightening force of the reset component leading to unreliable sealing. While ensuring the normal triggering of the overpressure protection function, it enhances the structural stability and sealing performance of the exhaust valve under normal operating conditions.

[0053] The valve cover 1 has an exhaust groove 10 at its bottom that communicates with the exhaust hole 2. One end of the first reset member 51 is fixed to the top of the exhaust groove 10, and the other end is connected to the valve plate 50. In this design, the exhaust groove 10 provides suitable installation and movement space for the first reset member 51 and the valve plate 50, while ensuring the smoothness of the exhaust passage. The exhaust groove 10 is a recessed groove structure at the bottom of the valve cover 1, the shape of which is adapted to the layout of the valve plate 50 and the first reset member 51. The groove is directly connected to the exhaust hole 2 and is integrally formed on the valve cover 1, forming a transition channel for medium flow. One end of the first reset member 51 is fixed to the top of the exhaust groove 10 by welding or snap-fit, and the other end is connected to the valve plate 50, so that the valve plate 50 can be flexibly opened and closed in the groove: when the medium pushes the valve plate 50 to open, the airflow enters the exhaust groove 10 through the exhaust channel 4 and then exits through the exhaust hole 2, avoiding the obstruction of components affecting the exhaust; when the pressure drops, the first reset member 51 drives the valve plate 50 to reset and close the exhaust channel 4 in the groove, ensuring a seal. This design not only solves the problem of messy installation of the reset component and valve plate 50 in the traditional structure, which can easily obstruct airflow, but also ensures the stability of the valve plate 50's operation through the groove limit, thereby improving the reliability and exhaust efficiency of the exhaust assembly 5.

[0054] The first reset element 51 is a spring plate. This design, by using a spring plate as the first reset element 51, ensures that the valve plate 50 can flexibly and quickly open and close under the action of medium pressure and elastic force, while simplifying the structure of the exhaust assembly 5. The spring plate is thin, light, and elastically stable, and is suitable for medium and low pressure conditions, with the advantage of resisting high-frequency vibration. One end of the spring plate is fixed to the top of the exhaust groove 10 by welding, and the other end is welded to the valve plate 50. When the medium pressure pushes the valve plate 50 to open, it deforms and quickly returns to its original shape after the pressure drops, driving the valve plate 50 to reset and close the exhaust channel 4. Compared with traditional reset structures such as helical springs, the spring plate does not require additional installation space, can fit and conform to the exhaust groove 10, reduce the obstruction to airflow, and has a faster response speed. It solves the problems of large space occupation of the reset element and slow opening and closing of the valve plate 50, and improves the action sensitivity and structural compactness of the exhaust assembly 5 while ensuring smooth exhaust.

[0055] The valve cover 1 has a receiving groove 11 at its top, providing working space for the second reset member 61. The bottom of the receiving groove 11 has an annular boss 12, and the lower end of the second reset member 61 is fitted onto the outer circumference of the annular boss 12. In this design, the receiving groove 11 provides sufficient compression and reset space for the second reset member 61, while the annular boss 12 positions the second reset member 61, ensuring stable operation during overpressure protection. The annular boss 12 is an annular structure with an upward protrusion from the bottom of the receiving groove 11, and its outer diameter is slightly smaller than the inner diameter of the second reset member 61. A radial clearance fit restricts the offset of the second reset member 61, ensuring axial compression. It is integrally formed with the receiving groove 11 and the valve cover 1, creating a stable positioning base. The lower end of the second reset member 61 is sleeved around the outer periphery of the annular boss 12. This sleeved arrangement restricts the radial displacement of the second reset member 61. When the valve cover 1 moves upward under overpressure, compressing the second reset member 61, the annular boss 12 prevents it from tilting or shifting due to uneven force. When the pressure is restored and the second reset member 61 pushes the valve cover 1 back to its original position, the annular boss 12 also ensures that it extends smoothly along the axial direction, avoiding friction or jamming with the smooth section of the guide screw 60. At the same time, the receiving groove 11 serves as the working space for the second reset member 61, providing it with sufficient compression stroke and preventing the elastic deformation under overpressure due to space constraints. This design solves the problems of easy misalignment during installation and malfunction caused by uneven force during operation of the traditional second reset member 61. In conjunction with the positioning sleeve 8 of the smooth section of the guide screw 60, it further ensures the coaxiality of the movement of the valve cover 1 and the movement of the second reset member 61, allowing the overpressure protection component 6 to maintain stable elastic performance and guiding accuracy during long-term use, thus improving the overall reliability of the exhaust valve.

[0056] The second reset element 61 is a helical spring or a disc spring, with its lower end abutting the bottom of the receiving groove 11 and its upper end abutting the limiting component 62. In this design, a helical spring or a disc spring is used as the second reset element 61, and its lower end abutting the bottom of the receiving groove 11 and its upper end abutting the limiting component 62, to provide stable elastic support and reset force for the valve cover 1. The helical spring is suitable for normal pressure, while the disc spring is suitable for high pressure and small deformation conditions, ensuring reliable overpressure protection and adaptability to different conditions. The helical spring has linear elastic characteristics, providing uniform preload and compression stroke, suitable for normal pressure ranges; the disc spring can generate greater elastic force in a smaller space, suitable for high pressure conditions. Both are connected by abutting at both ends, pushing the valve cover 1 and valve seat 3 to seal against each other under normal conditions. During overpressure, the valve cover 1 is compressed, allowing it to shift and form a pressure relief gap 7. After the pressure is restored, the valve cover 1 is pushed back to its original position. This design solves the problems of poor adaptability and large installation space requirements of traditional elastic elements. It not only ensures the sensitive response of overpressure protection, but also improves the versatility and reliability of the overpressure protection component 6 by selecting different types of springs to adapt to various pressure scenarios.

[0057] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A compressor exhaust valve, characterized in that, include: The valve cover (1) is provided with an exhaust port (2); Valve seat (3) is located below valve cover (1) and has an exhaust passage (4); The exhaust assembly (5) includes a valve plate (50) disposed at the bottom of the valve cover (1) and a first reset member (51), wherein the valve plate (50) closes the outlet of the exhaust passage (4) through the first reset member (51); The overpressure protection assembly (6) is evenly distributed between the valve cover (1) and the valve seat (3), including a guide screw (60) whose lower end is fixed to the valve seat (3) and whose upper end smooth rod section passes through the valve cover (1), and a second reset member (61) sleeved on the smooth rod section. The lower end of the second reset member (61) abuts against the valve cover (1) and the upper end abuts against the top of the guide screw (60) and the limiting member (62). Under normal conditions, the air pressure drives the valve plate (50) to open, so that the exhaust channel (4) is connected to the exhaust hole (2). When there is overpressure, the air pressure drives the valve cover (1) to move up along the smooth rod section to compress the second reset piece (61), so that the contact surface between the valve cover (1) and the valve seat (3) is separated to form a pressure relief gap (7).

2. A compressor exhaust valve according to claim 1, characterized in that, A positioning sleeve (8) is provided between the smooth section of the guide screw (60) and the valve cover (1), and the positioning sleeve (8) is in clearance fit with the smooth section.

3. A compressor exhaust valve according to claim 1, characterized in that, The limiting component (62) is a locking nut screwed onto the top of the guide screw (60) rod section, used to adjust the preload of the second reset component (61).

4. A compressor exhaust valve according to claim 1, characterized in that, An auxiliary connector (9) is provided between the valve seat (3) and the valve cover (1), and the auxiliary connector (9) includes: The locking bolt (90) is screwed from the top of the valve cover (1) into the inside of the valve cover (1); The conical plug (91) is inserted into the valve cover (1) from the bottom of the valve seat (3) and abuts against the locking bolt (90).

5. A compressor exhaust valve according to claim 1, characterized in that, The valve cover (1) has an exhaust groove (10) at the bottom that communicates with the exhaust hole (2). One end of the first reset member (51) is fixed to the top of the exhaust groove (10), and the other end is connected to the valve plate (50).

6. A compressor exhaust valve according to claim 1, characterized in that, The first reset element (51) is a spring sheet.

7. A compressor exhaust valve according to claim 1, characterized in that, The valve cover (1) has a receiving groove (11) at the top that provides working space for the second reset member (61). The bottom of the receiving groove (11) has an annular boss (12). The lower end of the second reset member (61) is sleeved on the outer periphery of the annular boss (12).

8. A compressor exhaust valve according to claim 7, characterized in that, The second reset component (61) is a helical spring or a disc spring, with its lower end abutting the bottom of the receiving groove (11) and its upper end abutting the limiting component (62).

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