Anti-surge regulating valve

Abstract

The invention provides an anti-surge regulating valve, and belongs to the technical field of anti-surge regulating valves. Comprising an anti-surge valve body, connectors are fixedly connected to the outer side and the bottom of the anti-surge valve body, threaded sleeve heads are connected to the outer portions of the connectors through buffer assemblies, threads matched with compressor equipment pipeline connectors are arranged on the inner sides of the threaded sleeve heads, and friction threads are evenly distributed on the outer sides of the threaded sleeve heads. A connecting assembly is fixedly connected to the outer portion of the threaded sleeve head. By arranging the buffer assembly, the connection state between the thread sleeve head and the connector is a non-rigid connection relation, the working vibration of the anti-surge valve body can be effectively buffered, the vibration influence on the thread sleeve head is greatly reduced, and the service life of the anti-surge valve body is prolonged. The connection between the threaded sleeve head and the compressor equipment pipeline is not interfered by the working vibration of the anti-surge valve body, and meanwhile, the problems that the vibration is amplified and the connection reliability is low in the working process of an existing anti-surge valve body are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of anti-surge regulating valves, in particular to an anti-surge regulating valve. BACKGROUND

[0002] Surge is a kind of unstable working state of fluid machinery when the flow rate decreases to a certain extent, which is characterized by periodic backflow and violent oscillation of gas, and can cause strong vibration and noise of the unit, and even cause devastating damage to the unit in severe cases. Anti-surge regulating valve is a key equipment for controlling surge, which is usually installed on the outlet return pipe or vent pipe of the compressor. When the working condition of the unit approaches the surge area, the anti-surge control system will quickly issue an instruction to drive the regulating valve to open, thereby rapidly increasing the flow rate through the unit and making it escape from the surge area, thus ensuring the safety of the unit.

[0003] At present, the anti-surge regulating valve of the prior art is usually connected with the equipment pipe in a rigid manner by screw connection. Although this structure is simple, it has obvious limitations in practical application. Specifically, during the opening and closing or adjusting process of the anti-surge valve, the valve core will be subjected to strong impact of high-speed and high-pressure fluid, making it become a vibration source. At the same time, the fluctuation of fluid pressure in the pipe and the mechanical vibration of the compressor unit will also be transmitted to the valve structure through the pipe. Since the existing connection method is rigid connection, there is no effective damping and buffering mechanism, so it is difficult to isolate or attenuate vibration, and instead, resonance effect is easily formed due to rigid coupling of the structure, which aggravates the response amplitude of vibration at the connection between the valve body and the pipe. Under the action of long-term severe vibration load, the connection part between the valve and the pipe is prone to loosen, which may cause medium leakage and safety hazards. In addition, this rigid connection method is complicated and time-consuming to operate when the valve needs to be disassembled and repaired regularly, which further increases the maintenance difficulty and workload. Therefore, the present application provides an anti-surge regulating valve to meet the needs. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an anti-surge regulating valve to solve the problems of vibration amplification, low connection reliability and inconvenient maintenance of the existing anti-surge regulating valve during operation.

[0005] To solve the above technical problems, the present application provides the following technical solutions:

[0006] The utility model provides an anti surge governing valve, including anti surge valve body, the outside and bottom of anti surge valve body are fixedly connected with the connecting head, the outside of connecting head is connected with the threaded sleeve through the buffer assembly, the inside of threaded sleeve is provided with the thread of being suitable for the pipeline interface of compressor equipment, and the outside of threaded sleeve is provided with the frictional line of uniform distribution, the outside of threaded sleeve is fixedly connected with the connecting assembly, buffer assembly is used for the vibration buffer after threaded sleeve and connecting head are connected, and buffer assembly is connected with threaded sleeve, connecting assembly is used for the connection between threaded sleeve and connecting head, and connecting assembly is connected with threaded sleeve.

[0007] Optionally, the buffer assembly comprises a connecting pipe, a corrugated pipe and an inner sleeve pipe connected with each other, the corrugated pipe is fixedly connected between the connecting pipe and the inner sleeve pipe, and the inner sleeve pipe is movably sleeved on the inner side of the threaded sleeve.

[0008] Optionally, the connecting pipe is provided with uniformly distributed separation openings at the ends thereof, and the separation openings form arc-shaped pieces through separation, and the connecting pipe and the arc-shaped pieces are provided with weakening grooves at the connecting positions therebetween.

[0009] Optionally, the outer side of the connecting pipe is fixedly connected with a sealing ring, and the inner wall of the connecting head is provided with a sealing groove matched with the shape of the sealing ring.

[0010] Optionally, the connecting assembly comprises uniformly distributed clamping strips fixedly connected to the outer side of the threaded sleeve, the ends of the clamping strips extend to the outer side of the connecting head and are fixedly connected with clamping blocks, and the clamping blocks are arranged on one side of the clamping strips close to the outer side of the connecting head.

[0011] Optionally, the clamping blocks are trapezoidal in cross section, one side of the clamping blocks close to the ends of the clamping strips is arc-shaped, the outer side of the connecting head is provided with a through opening matched with the shape of the clamping blocks, the outer side of the connecting head is provided with a guide groove in communication with the through opening, and the guide groove is provided with an arc-shaped guide corner at a position close to the end of the connecting head.

[0012] Optionally, the outer side of the clamping strips is fixedly connected with push pieces symmetrically distributed with the clamping blocks, the push pieces are arranged on one side of the clamping strips away from the outer side of the connecting head, and the push pieces are L-shaped.

[0013] Optionally, the connecting position between the clamping strips and the threaded sleeve is provided with a wave-shaped deformation area, and the thickness value of the deformation area is less than the thickness values of other areas of the clamping strips.

[0014] Optionally, the outer side of the arc-shaped pieces is provided with clamping grooves matched with the shapes of the clamping blocks penetrating into the inner side of the connecting head.

[0015] Optionally, the inner sleeve is sleeved on the inner side of the threaded sleeve head, and the two ends of the inner sleeve are fixedly connected with the limiting rings symmetrically distributed, the inner side of the threaded sleeve head is fixedly connected with the sealing ring with the size matched with the outer circle of the inner sleeve, the limiting ring of the end of the inner sleeve away from the bellows is attached to the area without thread on the inner side wall of the threaded sleeve head, and the inner circle of the sealing ring is also attached to the outside of the inner sleeve.

[0016] Compared with the prior art, the present application has at least the following beneficial effects:

[0017] In the above scheme, by arranging the buffer assembly, the connection state between the threaded sleeve head and the connecting head is a non-rigid connection relationship, which can effectively buffer the working vibration of the anti-surge valve body, greatly reduce the vibration influence on the threaded sleeve head, make the connection between the threaded sleeve head and the pipeline of the compressor equipment not be disturbed by the working vibration of the anti-surge valve body, and solve the problems of vibration amplification and low connection reliability in the working process of the existing anti-surge valve body.

[0018] By arranging the connecting pipe and the sealing ring in the buffer assembly and the arc-shaped sheet, when the connecting pipe is inserted into the connecting head in place, the sealing ring on the connecting pipe and the sealing groove on the inner side wall of the connecting head are nested with each other to form the preliminary connection between the connecting pipe and the connecting head, and the sealing after the connection between the connecting pipe and the connecting head, so that the butt joint operation between the connecting pipe and the connecting head is simpler and facilitates the subsequent connection work.

[0019] By arranging the connecting assembly, the connection relationship between the threaded sleeve head and the connecting head is realized, and the connection state between the connecting pipe and the connecting head is reinforced, further enhancing the stability of the connection between the anti-surge valve body and the pipeline of the compressor equipment.

[0020] By arranging the push piece and the deformation area, the push piece can simultaneously release the reinforcement between the connecting pipe and the connecting head and the connection relationship between the threaded sleeve head and the connecting head, so that the entire device can be removed without rotating the threaded sleeve head, and the anti-surge valve body and the connecting head can be quickly disassembled, facilitating the regular maintenance and repair operation of the anti-surge valve body.

[0021] By arranging the limiting ring and the sealing ring, on the one hand, the threaded sleeve head and the inner sleeve can move relatively, which perfects the function of the buffer assembly by cooperating with the buffering work of the buffer assembly, and on the other hand, the inner sleeve and the threaded sleeve head are closed, and the deformation ability of the limiting ring and the sealing ring ensures the closing effect of the channel formed between the anti-surge valve body and the pipeline of the compressor equipment under the vibration state, effectively preventing the connection part between the anti-surge valve body and the pipeline from loosening and avoiding the safety hazard caused by medium leakage. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the application and, together with the description, further serve to explain the principles of the application and to enable a person skilled in the relevant art to make and use the application.

[0023] Figure 1 Anti-surge regulating valve three-dimensional structure schematic diagram;

[0024] Figure 2 Anti-surge regulating valve explosion structure schematic diagram;

[0025] Figure 3 Anti-surge regulating valve three-dimensional structure schematic diagram; Figure 2 Enlarged structure schematic diagram at A in the middle;

[0026] Figure 4 Anti-surge regulating valve three-dimensional structure schematic diagram; Figure 2 Enlarged structure schematic diagram at B in the middle;

[0027] Figure 5 Anti-surge regulating valve three-dimensional structure schematic diagram;

[0028] Figure 6 Anti-surge regulating valve three-dimensional structure schematic diagram; Figure 5 Enlarged structure schematic diagram at C in the middle;

[0029] Figure 7 Anti-surge regulating valve three-dimensional structure schematic diagram;

[0030] Figure 8 Anti-surge regulating valve three-dimensional structure schematic diagram;

[0031] Figure 9 Anti-surge regulating valve three-dimensional structure schematic diagram;

[0032] Figure 10 Anti-surge regulating valve three-dimensional structure schematic diagram; Figure 9 Enlarged structure schematic diagram at D in the middle.

[0033] Reference signs:

[0034] 1, anti-surge valve body; 2, connecting head; 3, connecting pipe; 4, corrugated pipe; 5, inner sleeve; 6, threaded sleeve; 7, clamping strip; 8, deformation zone; 9, through opening; 10, guide groove; 11, sealing groove; 12, push piece; 13, arc-shaped piece; 14, weakening groove; 15, sealing ring; 16, clamping block; 17, sealing ring; 18, limiting ring; 19, clamping groove; 20, separation opening.

[0035] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in this specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0036] One anti-surge regulating valve according to the present application will be described in detail below with reference to the drawings and specific embodiments. It is to be noted that the following embodiments are the best, preferred embodiments, and other alternative embodiments can be implemented by those skilled in the art for some known technologies; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the present application.

[0037] It should be noted that the terms "one embodiment", "an embodiment", "some embodiments", "exemplary embodiment", "some other embodiments", and the like, are not necessarily referring to the same embodiment, but are used to describe one or more embodiments. Furthermore, the terms "comprises", "comprising", "includes", "including", "has", "having", "contains", "containing", or the like, are inclusive and not exclusive, unless expressly specified to the contrary.

[0038] Generally, the terms used herein are generally understood, at least partially, from the usage in the context. For example, the term "one or more" used herein, depending at least partially on the context, can be used to describe any feature, structure, or characteristic in a singular sense or can be used to describe combinations of features, structures, or characteristics in a plural sense. In addition, the term "based on" can be understood as not necessarily requiring a set of exclusive factors, but, alternatively, at least partially depending on the context, allowing for the existence of other factors not explicitly described.

[0039] It will be understood that the terms "on", "over", and "above", in the present application, should be interpreted in the broadest reasonable manner, such that "on" not only means "directly on" but also includes the meaning of "on" with intervening features or layers therebetween, and "over" or "above" not only means "over" or "above" but also can include the meaning of "over" or "above" without intervening features or layers therebetween.

[0040] In addition, spatially relative terms, such as "under", "below", "lower", "over", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as depicted in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein can be interpreted accordingly.

[0041] As Figures 1-2As shown, the embodiment of the present application provides an anti-surge regulating valve, including an anti-surge valve body 1, the outer side and the bottom of the anti-surge valve body 1 are fixedly connected with a connecting head 2, the connecting head 2 located on the outer side of the anti-surge valve body 1 is the input end of the anti-surge valve body 1, the connecting head 2 located on the bottom of the anti-surge valve body 1 is the output end of the anti-surge valve body 1, the outside of the connecting head 2 is connected with a threaded sleeve head 6 through a connecting pipe 3, a corrugated pipe 4 and an inner sleeve pipe 5, the inside of the threaded sleeve head 6 is provided with threads matched with the pipeline interface of the compressor equipment, and the outside of the threaded sleeve head 6 is provided with uniformly distributed friction lines, the threaded sleeve head 6 is used for threaded connection between the pipeline of the compressor equipment, forming the connection relationship between the anti-surge valve body 1 and the equipment pipeline, and when the connection operation is specifically performed, the connection between the threaded sleeve head 6 and the pipeline of the compressor equipment is firstly performed, the threaded sleeve head 6 is directly sleeved on the pipeline interface and rotated to complete the connection between the threaded sleeve head 6 and the pipeline interface, so that the anti-surge valve body 1 can be connected to the outlet return pipeline or the vent pipeline of the compressor equipment, ensuring the working position of the anti-surge valve body 1, when it is detected that the working condition of the compressor equipment is close to the surge area, the anti-surge control system will quickly issue an instruction to drive the anti-surge valve body 1 to open, quickly increase the flow through the compressor equipment, so as to make it away from the surge area, and protect the safety of the compressor equipment, the principle and use mode of the above anti-surge valve body 1 are the same as those of the prior art, and will not be described in detail here.

[0042] In the embodiment, as shown in the figure, Figures 2-10 The butt joint operation between the connecting pipe 3 and the connecting head 2 is subsequently performed, the end of the connecting pipe 3 is provided with uniformly distributed separation openings 20, and the arc-shaped piece 13 is formed by separation through the separation openings 20, the connection between the connecting pipe 3 and the arc-shaped piece 13 is provided with a weakening groove 14, the outside of the connecting pipe 3 is fixedly connected with a sealing ring 15, the inner side wall of the connecting head 2 is provided with a sealing groove 11 matched with the shape of the sealing ring 15, the weakening groove 14 is provided so that the structure of the arc-shaped piece 13 is thinned at the weakening groove 14, and then the structural strength of the arc-shaped piece 13 at the weakening groove 14 is weaker, and can be elastically deformed, when the connection is specifically performed, in the process of inserting the connecting pipe 3 into the connecting head 2, the arc-shaped piece 13 contacts with the inner side wall of the connecting head 2, is extruded from the inner side wall of the connecting head 2 or is manually pinched by the staff, can be bent and deformed at the weakening groove 14, and then the area of the end of the connecting pipe 3 is reduced, so that the insertion operation of the connecting pipe 3 into the connecting head 2 is simpler, when the connecting pipe 3 is inserted into the connecting head 2 in place, the sealing ring 15 on the connecting pipe 3 and the sealing groove 11 on the inner side wall of the connecting head 2 are nested with each other, forming the preliminary connection between the connecting pipe 3 and the connecting head 2, and the sealing after the connection between the connecting pipe 3 and the connecting head 2, the arc-shaped piece 13 also resets under the action of its own elasticity, facilitating the subsequent connection work.

[0043] In the embodiment, as shown in the figure,Figures 2-8 The final connection between the threaded sleeve head 6 and the connecting head 2 is shown, the outer part of the threaded sleeve head 6 is fixedly connected with uniformly distributed clamping strips 7, the ends of the clamping strips 7 extend to the outside of the connecting head 2 and are fixedly connected with clamping blocks 16, the clamping blocks 16 are arranged on one side of the clamping strips 7 close to the outside of the connecting head 2, the cross section of the clamping blocks 16 is trapezoidal, the side of the clamping blocks 16 close to the ends of the clamping strips 7 is arc-shaped, the outside of the connecting head 2 is provided with a through opening 9 matched with the shape of the clamping blocks 16, and the outside of the connecting head 2 is provided with a guide groove 10 in communication with the through opening 9, the guide groove 10 is provided with an arc-shaped guide corner close to the end of the connecting head 2, the outside of the clamping strips 7 is fixedly connected with a plurality of push pieces 12 symmetrically distributed with the clamping blocks 16, the push pieces 12 are arranged on the side of the clamping strips 7 away from the outside of the connecting head 2, and the push pieces 12 are L-shaped, the connection between the clamping strips 7 and the threaded sleeve head 6 is provided with a wave-shaped deformation zone 8, the thickness value of the deformation zone 8 is smaller than that of other areas of the clamping strips 7, so that the thickness value of the deformation zone 8 is thinner and the strength is weaker, and the deformation zone 8 is more likely to deform under external force, when the threaded sleeve head 6 is connected with the connecting head 2 through the clamping strips 7, the clamping blocks 16 on the clamping strips 7 are in contact with the ends of the through opening 9, and are subjected to extrusion force from the connecting head 2, the clamping blocks 16 decompose the extrusion force of the connecting head 2 on the clamping blocks 16 through the arc-shaped surface on the outside of the clamping blocks 16, and then form a force to expand the clamping strips 7 outward of the connecting head 2, so that the clamping strips 7 bend and deform at the deformation zone 8, at the same time, the clamping blocks 16 slide along the guide of the guide groove 10 outside the connecting head 2, until the clamping blocks 16 move to a position corresponding to the through opening 9, the deformation zone 8 resets under the action of its own elastic force, and drives the clamping strips 7 to fit outside the connecting head 2, the clamping blocks 16 on the clamping strips 7 are also inserted into the through opening 9 on the connecting head 2 and penetrate through the through opening 9, and are inserted into the inside of the connecting head 2, completing the connection and fixation between the threaded sleeve head 6 and the anti-surge valve body 1, when the connection needs to be disconnected, the push piece 12 is pushed to make the clamping strips 7 bend and deform again at the deformation zone 8, and drive the clamping blocks 16 to exit from the through opening 9, disconnecting the connection between the threaded sleeve head 6 and the connecting head 2.

[0044] In this embodiment, as Figures 5-10As shown, the outer part of the arc-shaped sheet 13 is also provided with a clamping groove 19 which is matched with the shape of the clamping block 16 penetrating into the inner part of the connecting head 2, and the connection between the connecting pipe 3 and the connecting head 2 is completed, and after the preliminary connection and fixation by the nesting of the sealing groove 11 and the sealing ring 15, with the connection between the threaded sleeve head 6 and the clamping strip 7, the part of the clamping block 16 penetrating into the connecting head 2 is also inserted into the clamping groove 19 outside the arc-shaped sheet 13, and a locking structure is formed between the arc-shaped sheet 13 and the clamping block 16, and the connection relationship between the clamping strip 7 and the connecting head 2 and the connecting pipe 3 and the connecting head 2 is reinforced, and then the stability of the connection relationship between the threaded sleeve head 6 and the connecting head 2 is further enhanced, when the airflow passes through the connecting pipe 3, the arc-shaped sheet 13 can also be attached to the inner side wall of the connecting head 2 under the action of the airflow impact, and the connection strength between the clamping block 16 and the clamping groove 19 is further enhanced, and when the push piece 12 is pushed to disconnect the connection relationship between the clamping strip 7 and the connecting head 2, the clamping block 16 is first withdrawn from the clamping groove 19 and then from the through opening 9, and at the same time, the reinforcement of the connecting pipe 3 and the connecting head 2 and the connection relationship between the threaded sleeve head 6 and the connecting head 2 are released, and the entire device is not needed to be disassembled by rotating the threaded sleeve head 6, so that the anti-surge valve body 1 and the connecting head 2 can be quickly disassembled from the outlet backflow pipeline or the vent pipeline of the compressor equipment, and the regular maintenance and repair operation is facilitated.

[0045] In the present embodiment, as shown in Figures 2-9As shown, the inner sleeve 5 is sleeved on the inner side of the threaded sleeve head 6, and the two ends of the inner sleeve 5 are fixedly connected with the symmetrical limiting rings 18, the inner side of the threaded sleeve head 6 is fixedly connected with the sealing ring 17 which is matched with the outer circle of the inner sleeve 5, the inner sleeve 5 and the threaded sleeve head 6 can slide relative to each other, the sliding range is limited by the cooperation of the limiting rings 18 and the sealing ring 17, the sealing ring 17 and the limiting ring 18 are both made of hard rubber, and in addition to being used for limiting the sliding range of the threaded sleeve head 6, they also form the sealing between the inner sleeve 5 and the threaded sleeve head 6, the limiting ring 18 on the end of the inner sleeve 5 away from the corrugated pipe 4 is attached to the area without threads in the inner side wall of the threaded sleeve head 6, the inner circle of the sealing ring 17 is also attached to the outside of the inner sleeve 5, and together they form the sealing of the connecting position between the inner sleeve 5 and the threaded sleeve head 6, the corrugated structure of the corrugated pipe 4 and the deformation area 8 on the clamping strip 7 make the connection between the threaded sleeve head 6 and the connecting head 2 a non-rigid connection, when the anti-surge valve body 1 works and vibrates, the corrugated pipe 4 and the deformation area 8 can change the relative position between the threaded sleeve head 6 and the connecting head 2 through their own deformation, during the change process, the corrugated pipe 4 can consume and absorb vibration forces in all directions by means of its own deformation bending, and the deformation area 8 can also synchronously deform adaptively, so as to realize the buffering of the working vibration of the anti-surge valve body 1, greatly reduce the vibration influence on the threaded sleeve head 6, make the connection between the threaded sleeve head 6 and the pipeline of the compressor device not be interfered by the working vibration of the anti-surge valve body 1, avoid the resonance effect caused by rigid coupling, and prevent the connection part between the anti-surge valve body 1 and the pipeline from loosening and avoiding the safety hidden danger caused by medium leakage.

[0046] The present application encompasses any substitutions, modifications, equivalent methods and solutions made to the essence and scope of the present application. In order for the public to have a thorough understanding of the present application, specific details are described in the following preferred embodiments of the present application, and the present application can also be completely understood without these descriptions for those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0047] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can also be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A surge-resistant regulating valve, comprising a surge-resistant valve body, wherein connectors are fixedly connected to the outer side and bottom of the surge-resistant valve body, characterized in that, The connector is connected to a threaded sleeve via a buffer assembly. The inner side of the threaded sleeve is provided with a thread that is compatible with the pipe interface of the compressor equipment, and the outer side of the threaded sleeve is provided with evenly distributed friction marks. A connecting assembly is fixedly connected to the outside of the threaded sleeve. The buffer assembly is used to buffer vibration after the threaded sleeve is connected to the connector; the buffer assembly is connected to the threaded sleeve. The connecting assembly is used for the connection between the threaded sleeve and the connector, and the connecting assembly is connected to the threaded sleeve.

2. The anti-surge regulating valve according to claim 1, characterized in that, The buffer assembly includes a connecting pipe, a bellows, and an inner sleeve that are connected to each other. The bellows is fixedly connected between the connecting pipe and the inner sleeve, and the inner sleeve is movably fitted inside the threaded sleeve.

3. The anti-surge regulating valve according to claim 2, characterized in that, The end of the connecting pipe has evenly distributed separation ports, and an arc-shaped plate is formed by separation through the separation ports. A weakening groove is provided at the connection between the connecting pipe and the arc-shaped plate.

4. The anti-surge regulating valve according to claim 3, characterized in that, A sealing ring is fixedly connected to the outside of the connecting pipe, and a sealing groove that matches the shape of the sealing ring is opened on the inner side wall of the connector.

5. The anti-surge regulating valve according to claim 3, characterized in that, The connecting assembly includes uniformly distributed retaining strips that are externally fixed to the threaded sleeve. The ends of the retaining strips extend to the outside of the connector and are fixedly connected to retaining blocks. The retaining blocks are disposed on the side of the retaining strips near the outside of the connector.

6. The anti-surge regulating valve according to claim 5, characterized in that, The cross-section of the card block is trapezoidal, and the side of the card block near the end of the card strip is arc-shaped. The outside of the connector is provided with a through opening that matches the shape of the card block, and the outside of the connector is provided with a guide groove that communicates with the through opening. The guide groove is provided with an arc-shaped chamfer near the end of the connector.

7. The anti-surge regulating valve according to claim 6, characterized in that, The card strip has external fixed connections with paddles symmetrically distributed with the card block. The paddles are located on the side of the card strip away from the outside of the connector and are L-shaped.

8. The anti-surge regulating valve according to claim 5, characterized in that, A wavy deformation zone is provided at the connection between the clip and the threaded sleeve, and the thickness value of the deformation zone is less than the thickness value of other areas on the clip.

9. The anti-surge regulating valve according to claim 5, characterized in that, The outer side of the arc-shaped piece has a slot that matches the shape of the part of the card block that extends through to the inner side of the connector.

10. The anti-surge regulating valve according to claim 1, characterized in that, The inner sleeve is fitted inside the threaded sleeve, and symmetrically distributed limiting rings are fixedly connected to both ends of the inner sleeve. A sealing ring that matches the size of the outer ring of the inner sleeve is fixedly connected to the inner side of the threaded sleeve. The limiting ring at the end of the inner sleeve away from the bellows fits against the unthreaded area on the inner wall of the threaded sleeve, and the inner ring of the sealing ring also fits against the outer side of the inner sleeve.

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