Stop valve and test sorting machine

Abstract

The utility model relates to a stop valve and a test sorting machine. The stop valve comprises a valve body, a valve element, a first valve bonnet and a first sealing piece. The valve body is provided with a first channel and an operation interface communicated with the first channel. The valve element is movably arranged in the first channel and connected with the inner wall of the first channel in a sealed mode. The first bonnet is detachably arranged on the operation interface. The first valve bonnet is provided with a first conical surface, the operation connector is provided with a second conical surface, and the first conical surface and the second conical surface are oppositely arranged at intervals. The first sealing piece is connected between the first conical surface and the second conical surface in a face-to-face mode so as to connect the first valve bonnet and the operation interface in a sealing mode. According to the technical scheme, the reliability of secondary sealing of the stop valve is improved, and the leakage probability of the stop valve is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of stop valves, and in particular to stop valves and test and sorting machines. Background Art

[0002] The test sorting machine usually uses a refrigerant machine to provide low-temperature refrigerant. When the machine is running, the refrigerant machine transports the low-temperature refrigerant to the refrigerant pipeline inside the machine to cool down the electronic components under test. A stop valve is usually installed inside the machine to connect the refrigerant pipeline and other structures to ensure the sealing isolation of the refrigerant system from the outside world. In the relevant stop valve structure, the seal between the valve cap and the valve body is used to achieve the second seal of the valve core. The common sealing method is to wrap the threaded joint with raw tape or add a gasket or apply sealant to seal. However, these methods are prone to sealing failure or difficult maintenance due to multiple disassembly and assembly, resulting in low airtight reliability of the stop valve and easy leakage. Utility Model Content

[0003] Based on this, it is necessary to provide a stop valve and a test sorting machine to address the problem of poor air tightness of the stop valve, which leads to leakage.

[0004] In a first aspect, an embodiment of the present application provides a stop valve, comprising:

[0005] A valve body having a first channel and an operation interface communicating with the first channel;

[0006] a valve core, movably disposed in the first channel and sealingly connected to the inner wall of the first channel;

[0007] a first valve bonnet detachably disposed on the operation interface, the first valve bonnet having a first conical surface, the operation interface having a second conical surface, the first conical surface and the second conical surface being disposed opposite to each other with a spacing therebetween; and

[0008] The first sealing member is connected between the first conical surface and the second conical surface to seal and connect the first valve cap and the operation interface.

[0009] In some embodiments, the operation interface is arranged to face along a first direction, and the cross-sectional size of the second conical surface is arranged to decrease along the first direction.

[0010] In some embodiments, one end of the first conical surface in the first direction is a first end, and the other end is a second end, and the first end is arranged farther away from the valve core than the second end.

[0011] The projection of the first end along the first direction is beyond the range of the second conical surface, and the projection of the second end along the first direction is within the range of the second conical surface.

[0012] In some embodiments, the area of ​​the first conical surface in contact with the first seal accounts for no less than 50% of its total area, and the area of ​​the second conical surface in contact with the first seal accounts for no more than 50% of its total area.

[0013] In some embodiments, the first sealing member includes a sealing portion and an arched portion, and the sealing portion is disposed around the outer periphery of the arched portion along the circumference of the first conical surface;

[0014] The sealing portion is disposed between the first conical surface and the second conical surface. The arched portion arches relative to the sealing portion away from the valve core and seals the operation interface together with the sealing portion.

[0015] In some embodiments, the stop valve includes a second sealing member, which is sleeved outside the valve core and sealed between the valve core and the inner wall of the first channel.

[0016] In some embodiments, the stop valve further includes a stopper, a mounting portion is provided on the inner wall of the first channel, the stopper is provided on the mounting portion, and can block one side of the valve core in its moving direction.

[0017] In some embodiments, the valve body further has a transition channel, the transition channel is connected to the first channel, and the valve core can switch between a position of blocking the transition channel and a position of opening the transition channel during movement;

[0018] The valve body also has at least two connection interfaces independently communicated with the transition channel.

[0019] In some embodiments, the valve body further comprises a valve interface, a valve bonnet and a third sealing member independently communicated with the transition channel, a valve nozzle is sealed in the valve interface, and the second valve bonnet is sealed and connected to the valve interface via the third sealing member;

[0020] The third sealing member is sealingly connected to the second valve cap and the valve interface cone surface.

[0021] A test sorting machine comprises a refrigerant machine, a temperature control module and a stop valve as described in any of the above embodiments, wherein the stop valve is connected between the outlet end of the refrigerant machine and the temperature control module, and the temperature control module is used to adjust the temperature of the device to be tested.

[0022] In actual application, the stop valve and the test sorter can realize one seal through the sealing connection between the valve core and the first channel, and realize two seals through the first sealing member located between the first cone surface and the second cone surface. Moreover, the first valve cap and the operation interface are sealed by the first sealing member and the first cone surface and the second cone surface, and the sealing effect is good, which can meet the sealing requirements of the first valve cap and the operation interface after multiple disassembly and assembly, and is helpful to improve the reliability of the two-seal of the stop valve and reduce the probability of leakage of the stop valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0024] Figure 1 This is a schematic diagram of the appearance of the stop valve according to some embodiments of the present application.

[0025] Figure 2 for Figure 1 Another schematic diagram of the stop valve shown.

[0026] Figure 3 for Figure 1 The schematic diagram of the internal structure of the stop valve in one state is shown.

[0027] Figure 4 for Figure 3 Schematic diagram of the partial structure of the stop valve shown.

[0028] Figure 5 for Figure 1 The schematic diagram of the internal structure of the stop valve in another state is shown.

[0029] The reference numerals in the specific implementation manner are as follows:

[0030] 100. Stop valve; F. First direction; 10. Valve body; T1. First channel; 11. Operation interface; M2. Second cone surface; 14. Mounting portion; T2. Transition channel; 12. Connection interface; 13. Valve interface; 20. Valve core; 31. First valve bonnet; 32. Second valve bonnet; 33. Third valve bonnet; M1. First cone surface; D1. First end; D2. Second end; 40. First sealing member; 41. Sealing portion; 42. Arched portion; 50. Second sealing member; 60. Stop member; 70. Valve nozzle; 80. Fixing portion. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that terms such as “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships, if any, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In addition, if present, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In this application, unless otherwise clearly specified and limited, if any, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In the present application, if it appears, unless otherwise clearly specified and limited, a first feature “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature “above”, “above” and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature “below”, “below” and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that, if present, when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0037] In order to improve the air tightness of the stop valve and reduce the risk of refrigerant leakage, the embodiment of the present application provides a stop valve. The stop valve in the embodiment of the present application is described in detail below.

[0038] According to some embodiments of this application, please refer to Figures 1 to 5 The stop valve 100 provided in the embodiment of the present application includes a valve body 10, a valve core 20, a first valve bonnet 31 and a first sealing member 40. The valve body 10 has a first channel T1 and an operating interface 11 connected to the first channel T1. The valve core 20 is movably arranged in the first channel T1 and is sealed with the inner wall of the first channel T1. The first valve bonnet 31 is detachably arranged in the operating interface 11. The first valve bonnet 31 has a first conical surface M1, and the operating interface 11 has a second conical surface M2, and the first conical surface M1 and the second conical surface M2 are arranged opposite to each other with a gap. The first sealing member 40 is connected between the first conical surface M1 and the second conical surface M2 to seal the first valve bonnet 31 and the operating interface 11.

[0039] The valve body 10 is mainly used to form an internal channel of the stop valve 100 for fluid circulation. Specifically, a first channel T1 is formed in the valve body 10, and the valve core 20 is movably disposed in the first channel T1 and is sealed and connected to the first channel T1, that is, there is a seal between the valve core 20 and the first channel T1 to prevent the fluid from leaking outward through the valve core 20. There are many specific schemes for achieving the sealing between the valve core 20 and the first channel T1, and those skilled in the art can make conventional settings, for example, the valve core 20 itself has a rubber section, which is sealed and connected to the inner wall of the first channel T1 through the rubber section.

[0040] The valve body 10 has an operation interface 11, and the first valve cap 31 is detachably arranged on the operation interface 11. The first valve cap 31 and the operation interface 11 can be connected by threaded fitting, snap-fit ​​connection, etc., and the specific method can be conventionally arranged.

[0041] Generally, when the valve core 20 needs to be moved, the first valve cap 31 is removed from the operation interface 11, and an external tool for driving the valve core 20 to move is inserted into the first channel T1 through the operation interface 11. For example, the valve core 20 is threadedly connected to the inner wall of the first channel T1, and the end of the valve core 20 has an operation hole. The external tool can be a screwdriver. When the screwdriver is inserted into the operation hole and rotated, the valve core 20 can be driven to rotate so that the valve core 20 moves along the first channel T1. When the valve core 20 is moved into place, the first valve cap 31 is reinstalled at the operation interface 11.

[0042] The first valve bonnet 31 has a first conical surface M1, and the operation interface 11 has a second conical surface M2. The first conical surface M1 and the second conical surface M2 are opposite and spaced apart. Usually, the first valve bonnet 31 is sleeved outside the operation interface 11, the first conical surface M1 is the inner conical surface of the first valve bonnet 31, the second conical surface M2 is the outer conical surface of the operation interface 11, and the first conical surface M1 is located outside the second conical surface M2. The first conical surface M1 and the second conical surface M2 are usually coaxially arranged.

[0043] A first seal 40 is provided between the first conical surface M1 and the second conical surface M2. The first seal 40 can not only be connected to the first conical surface M1 and the second conical surface M2 to seal the space between the first conical surface M1 and the second conical surface M2, but also can seal the operation interface 11 to prevent the fluid from leaking from the operation interface 11 to the first valve cap 31 and the outside, thus playing the role of a second seal. The first seal 40 can be made of, but not limited to, rubber, silicone, ceramic, metal, and the like. For example, the first seal 40 is made of copper.

[0044] In actual application, the stop valve 100 can realize one seal through the sealing connection between the valve core 20 and the first channel T1, and realize two seals through the first sealing member 40 located between the first conical surface M1 and the second conical surface M2. Moreover, the first valve cap 31 and the operation interface 11 are sealed by the first sealing member 40 and the first conical surface M1 and the second conical surface M2, and the sealing effect is good, which can meet the sealing requirements of the first valve cap 31 and the operation interface 11 after multiple disassembly and assembly, and is helpful to improve the reliability of the two seals of the stop valve 100 and reduce the probability of leakage of the stop valve 100.

[0045] In some embodiments, please refer to Figures 3 to 5 In the first direction F in which the operation interface 11 faces the first valve cap 31 , the cross-sectional dimensions of the second conical surface M2 are gradually reduced.

[0046] It should be noted that the first direction F is a direction from the operation interface 11 to the first valve bonnet 31. Usually, the operation interface 11 is coaxially arranged with the first valve bonnet 31. The extension direction of the first channel T1 may correspond to the first direction F.

[0047] The cross-sectional dimension of the conical surface may be a cross-sectional diameter or a radius. The cross-sectional dimension of the second conical surface M2 is set to decrease along the first direction F, and at the same time, the cross-sectional dimension of the first conical surface M1 is set to decrease along the first direction F.

[0048] The first valve bonnet 31 is usually sleeved on the outer wall of the operation interface 11. When the cross-sectional dimensions of the first conical surface M1 and the second conical surface M2 decrease along the first direction F, it is more convenient to disassemble and assemble the first valve bonnet 31. Moreover, during the actual assembly, the first sealing member 40 is firstly installed on the second conical surface M2 of the operation interface 11, and then the first valve bonnet 31 is installed and the first conical surface M1 is pressed against the first sealing member 40. The cross-sectional dimensions of the first conical surface M1 and the second conical surface M2 are designed to decrease along the first direction F, which is more convenient for assembling the first sealing member 40, the first valve bonnet 31 and the operation interface 11, and is also convenient for simplifying the structural design of the first valve bonnet 31 and the first sealing member 40.

[0049] In some embodiments, please refer to Figure 4 , one end of the first conical surface M1 in the first direction F is the first end D1, and the other end is the second end D2. The first end D1 is arranged farther away from the valve core 20 than the second end D2. The projection of the first end D1 along the first direction F exceeds the range of the second conical surface M2, and the projection of the second end D2 along the first direction F falls within the range of the second conical surface M2.

[0050] It can be understood that the first end D1 is the small diameter end of the first conical surface M1, and the second end D2 is the large diameter end of the first conical surface M1. Figure 4 It is understood that when the projection of the first end D1 exceeds the range of the second conical surface M2, and the projection of the second end D2 falls within the range of the second conical surface M2, there is a section of the first seal 40 clamped between the first conical surface M1 and the second conical surface M2, so that the first seal 40 is connected to the first conical surface M1 and the second conical surface M2. Moreover, since the projection of the first end D1 exceeds the range of the second conical surface M2, the first conical surface M1 and the first seal 40 can have a larger contact area, so that the first valve bonnet 31 can apply a larger pressing force to the first seal 40, and the first seal 40 can be installed more reliably.

[0051] In some embodiments, please refer to Figure 4 The area of ​​the first conical surface M1 in contact with the first sealing member 40 accounts for no less than 50% of its total area, and the area of ​​the first conical surface M1 in contact with the first sealing member 40 accounts for no more than 50% of its total area.

[0052] Specifically, the first conical surface M1 can be in full contact with the first seal 40, and the second conical surface M2 can be in surface contact with the first seal 40 at an area less than 50%. At this time, the contact area between the first seal 40 and the first conical surface M1 and the second conical surface M2 is moderate, and the sealing performance of the first seal 40 is good. Moreover, the outer wall portion of the operating interface 11 that is not in contact with the first seal 40 can be formed into a conical surface and used as the second conical surface M2, which is convenient for the processing and manufacturing of the second conical surface M2. In addition, the contact area between the first seal 40 and the second conical surface M2 is small, which helps to shorten the size of the first seal 40 and reduce cost losses.

[0053] Specifically, the ratio of the area of ​​the first conical surface M1 in contact with the first seal 40 to the total area thereof can be 10%, 20%, 30%, 40%, 50% and any value between adjacent values. The ratio of the area of ​​the first conical surface M1 in contact with the first seal 40 to the total area thereof can be 50%, 60%, 70%, 80%, 90%, 100% and any value between adjacent values.

[0054] In some embodiments, please refer to Figure 4 The first sealing member 40 includes a sealing portion 41 and an arched portion 42. The sealing portion 41 surrounds the outer periphery of the arched portion 42 along the circumferential direction of the first conical surface M1. The sealing portion 41 is disposed between the first conical surface M1 and the second conical surface M2. The arched portion 42 arches away from the valve core 20 relative to the sealing portion 41 and seals the operation interface 11 together with the sealing portion 41.

[0055] It is easy to understand that the sealing portion 41 is an annular conical structure, and the arched portion 42 is provided at the open end of the sealing portion 41 and forms a continuous structure with the sealing portion 41 that can cover the operation interface 11. The sealing portion 41 and the arched portion 42 can be, but are not limited to, integrally formed, such as by injection molding.

[0056] At this time, through the cooperation of the arched portion 42 and the sealing portion 41, not only can two seals be set on the operating interface 11, but the arched portion 42 is arched toward the outside of the stop valve 100, and the arched portion 42 can be used for manual holding when installing the first sealing member 40, thereby facilitating the installation of the first sealing member 40.

[0057] Specifically, the arched portion 42 may be arched in an arc shape, so as to reduce the application concentration of the first sealing member 40 and facilitate the molding of the first sealing member 40 .

[0058] In some embodiments, please refer to Figure 4The stop valve 100 includes a second sealing member 50, which is sleeved outside the valve core 20 and sealed between the valve core 20 and the inner wall of the first channel T1. That is, a seal can be achieved between the valve core 20 and the inner wall of the first channel T1 through the second sealing member 50, and this solution is easy to implement. Among them, the first sealing member 40 can be a rubber ring, a silicone ring, etc. with a ring structure.

[0059] In some embodiments, please refer to Figure 4 The stop valve 100 further includes a stopper 60 . A mounting portion 14 is disposed on the inner wall of the first channel T1 . The stopper 60 is disposed on the mounting portion 14 and can block one side of the valve core 20 in its moving direction.

[0060] The mounting portion 14 can be a mounting groove, a mounting surface, a mounting block, etc., and can be specifically configured conventionally. The stopper 60 is mounted on the mounting portion 14, and the stopper 60 can be a stopper ring, a stopper sheet, a stopper spring, etc.

[0061] The stopper 60 is located outside the valve core 20 , and when the valve core 20 moves to a corresponding position, it can block the valve core 20 from further moving, thereby preventing the valve core 20 from escaping from the first passage T1 .

[0062] In some embodiments, please refer to Figure 3 and Figure 5 The valve body 10 also includes a transition channel T2, which is connected to the first channel T1. The valve core 20 can switch between a position that cuts off the transition channel T2 and a position that guides the transition channel T2 during movement. The valve body 10 also has at least two connection interfaces 12 that are independently connected to the transition channel T2.

[0063] The connection interface 12 is used for the stop valve 100 to connect to an external pipeline, and each connection interface 12 is independently connected to the transition channel T2. In actual application, one of the connection interfaces 12 can be connected to the outlet of the refrigerant machine, and the other connection interfaces 12 can be connected to the pipeline that needs to use the refrigerant.

[0064] The valve core 20 can enter and exit the transition channel T2 during the movement along the first channel T1. When the valve core 20 cuts off the transition channel T2 and blocks the transition channel T2, the connection interface 12 connected to the refrigerant machine can be disconnected from the other connection interfaces 12. When the valve core 20 conducts the transition channel T2, the connection interface 12 connected to the refrigerant machine can be connected to the other connection interfaces 12.

[0065] In this way, the movable valve core 20 can realize the conduction and cutoff of the flow path where the stop valve 100 is located, thereby realizing the cutoff and conduction functions of the stop valve 100.

[0066] A third valve bonnet 33 may be provided at the connection interface 12 , and the third valve bonnet 33 and the connection interface 12 may be sealed in the form of a conical surface combined seal, or may be sealed in the form of winding a raw tape or the like.

[0067] In some embodiments, please refer to Figure 3 and Figure 5 The valve body 10 further includes a valve interface 13 independently connected to the transition channel T2, and the stop valve 100 further includes a second valve bonnet 32 ​​and a third sealing member (not shown). A valve nozzle 70 is sealed in the valve interface 13, and the second valve bonnet 32 ​​is sealed and connected to the valve interface 13 via the third sealing member. The third sealing member is sealed and connected to the second valve bonnet 32 ​​and the valve interface 13 through a conical surface.

[0068] The valve interface 13 is connected to the transition channel T2. When the valve core 20 exits the transition channel T2, the valve interface 13 can be connected to each connection interface 12. A valve nozzle 70 is arranged in the valve interface 13. The valve nozzle 70 is used for the inflation inlet or deflation outlet, and is used to supplement or release the medium of the refrigeration system. The medium is usually a refrigerant. The specific structure of the valve nozzle 70 can refer to the conventional setting. In some applications, the valve interface 13 is adjacent to the connection interface 12 for connecting the refrigerant machine and the central axis intersects.

[0069] The second valve bonnet 32 ​​is mounted on the valve interface 13, and a conical surface is provided between the two that is opposite and spaced apart, and the third sealing member is connected between the conical surfaces of the two to seal the second valve bonnet 32 ​​and the valve interface 13. At this time, the second valve bonnet 32 ​​and the valve interface 13 are sealed by the surface, which can reduce the risk of leakage at the valve interface 13 and improve the sealing reliability of the valve interface 13.

[0070] It can be understood that the third sealing member is capable of closing the valve interface 13 to seal between the valve interface 13 and the second valve cap 32. Specifically, the third sealing member can adopt the same structure as the first sealing member 40.

[0071] In some embodiments, please refer to Figure 2 The stop valve 100 further includes a fixing portion 80, which is used to fix the stop valve 100 to an external structure. Specifically, the fixing portion 80 may be a fixing block, a fixing sheet, etc. A threaded hole or the like may be provided on the fixing portion 80 for fixing the connection. At this time, the setting of the fixing portion 80 facilitates the installation and fixing of the stop valve 100.

[0072] In addition, the embodiment of the present application also adopts a test sorting machine, which includes a refrigerant machine, a temperature control module and the stop valve 100 in any of the above embodiments. The stop valve 100 is connected between the outlet end of the refrigerant machine and the temperature control module. The temperature control module is used to adjust the temperature of the device to be tested.

[0073] The refrigerant machine can provide refrigerant to the outside. One connection interface 12 of the stop valve 100 is connected to the outlet end of the refrigerant machine, and the other connection interface 12 of the stop valve 100 is connected to the inlet end of the temperature control module. The stop valve 100 is used to send the refrigerant discharged from the refrigerant machine into the temperature control module. By controlling the movement of the valve core 20, the refrigerant machine can deliver or not deliver refrigerant to the temperature control module.

[0074] The temperature control module can use the refrigerant entering itself to control the temperature of the device under test. The temperature control module can be, but is not limited to, a temperature control pressure head, a temperature control cavity, a temperature control air blowing component, etc. Its specific structure can be conventionally set and can be set according to specific application scenarios. The device under test can be, but is not limited to, a chip.

[0075] The test sorting machine utilizes the stop valve 100 in the above embodiment to be connected between the refrigerant machine and the temperature control module, which can reduce the probability of refrigerant leakage and improve the airtightness of the refrigeration system.

[0076] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A stop valve (100), characterized in that: include: A valve body (10) having a first channel (T1) and an operation interface (C) communicating with the first channel (T1); A valve core (20) is movably disposed in the first channel (T1) and is sealingly connected to the inner wall of the first channel (T1); A first valve bonnet (31) is detachably arranged on the operation interface (C), the first valve bonnet (31) has a first conical surface (M1), the operation interface (C) has a second conical surface (M2), and the first conical surface (M1) and the second conical surface (M2) are arranged opposite to each other with a spacing; and A first sealing member (40) is surface-connected between the first conical surface (M1) and the second conical surface (M2) to seal and connect the first valve cap (31) and the operating interface (C).

2. The stop valve (100) according to claim 1, characterized in that: In a first direction (F) in which the operation interface (C) is arranged facing the first valve cap (31), the cross-sectional dimensions of the second conical surface (M2) are arranged to decrease.

3. The stop valve (100) according to claim 2, characterized in that: One end of the first conical surface (M1) in the first direction (F) is a first end (D1), and the other end is a second end (D2), and the first end (D1) is arranged farther from the valve core (20) than the second end (D2); The projection of the first end (D1) along the first direction (F) is beyond the range of the second conical surface (M2), and the projection of the second end (D2) along the first direction (F) falls within the range of the second conical surface (M2).

4. The stop valve (100) according to claim 3, characterized in that: The area of ​​the first conical surface (M1) in contact with the first seal (40) accounts for no less than 50% of its total area, and the area of ​​the second conical surface (M2) in contact with the first seal (40) accounts for no more than 50% of its total area.

5. The stop valve (100) according to claim 1, characterized in that: The first sealing member (40) comprises a sealing portion (41) and a raised portion (42), wherein the sealing portion (41) is disposed around the outer periphery of the raised portion (42) along the circumferential direction of the first conical surface (M1); The sealing portion (41) is arranged between the first conical surface (M1) and the second conical surface (M2); the arched portion (42) arches away from the valve core (20) relative to the sealing portion (41) and seals the operating interface (C) together with the sealing portion (41).

6. The stop valve (100) according to claim 1, characterized in that: The stop valve (100) comprises a second sealing member (50), wherein the second sealing member (50) is sleeved outside the valve core (20) and is sealingly connected between the valve core (20) and the inner wall of the first channel (T1).

7. The stop valve (100) according to claim 1, characterized in that: The stop valve (100) further comprises a stopper (60); a mounting portion (11) is provided on the inner wall of the first channel (T1); the stopper (60) is provided on the mounting portion (11) and is capable of blocking one side of the valve core (20) in its moving direction.

8. The stop valve (100) according to claim 1, characterized in that: The valve body (10) further comprises a transition channel (T2), wherein the transition channel (T2) is connected to the first channel (T1), and the valve core (20) can switch between a position of blocking the transition channel (T2) and a position of opening the transition channel (T2) during movement; The valve body (10) also has at least two connection interfaces (12) independently connected to the transition channel (T2).

9. The stop valve (100) according to claim 8, characterized in that: The valve body (10) further comprises a valve interface (13) independently connected to the transition channel (T2); the stop valve (100) further comprises a second valve cap (32) and a third sealing member; a valve nozzle (70) is sealedly arranged in the valve interface (13); and the second valve cap (32) is sealedly connected to the valve interface (13) via the third sealing member; The third sealing member is connected to the second valve cap (32) and the valve interface (13) in a conical sealing manner.

10. A test sorting machine, characterized in that: The test sorting machine comprises a refrigerant machine, a temperature control module and a stop valve (100) as described in any one of claims 1 to 9, wherein the stop valve (100) is connected between the outlet end of the refrigerant machine and the temperature control module, and the temperature control module is used to adjust the temperature of the device to be tested.

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