Locking ball valve

Abstract

The utility model relates to the technical field of valves, and discloses a locking ball valve which comprises a valve body and a valve rod, the valve body comprises a valve body and a convex neck, the convex neck protrudes out of the outer surface of the valve body, a flow channel is formed in the valve body, and a first containing space communicating with the flow channel is formed in the convex neck; the rotating assembly comprises a valve element and a valve rod which are connected with each other, the valve element is arranged in the flow channel and selectively communicates the flow channel, and the valve rod is arranged in the first containing space; a limiting pin is arranged on the peripheral face of the valve rod, a limiting opening matched with the limiting pin is formed in the protruding neck, the protruding neck is provided with a first end face away from the valve body in the axial direction of the protruding neck, and the limiting opening penetrates through the first end face. According to the locking ball valve, the mounting convenience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valves, in particular to a locking ball valve. BACKGROUND

[0002] In the technical field of valves, the locking ball valve is widely used in various fluid conveying systems, and its performance directly affects the safe and stable operation of the system and the maintenance cost. The traditional locking ball valve usually adopts a radial limiting structure, which realizes mechanical constraint of the rotation angle of the valve core by opening a limiting groove in the rotating assembly or the side wall of the valve body and cooperating with a limiting pin.

[0003] In the related art, the limiting groove is often arranged at a relatively concealed and limited space, and the installation personnel has great difficulty in installing the limiting component into the limiting groove, which not only consumes a lot of time, but also makes it difficult to ensure the installation accuracy due to the inconvenience of operation, which undoubtedly increases the installation cost and the risk of component damage during the installation process. In view of this, the installation convenience of the locking ball valve is a technical problem to be solved at present. CONTENT OF THE INVENTION

[0004] The present application provides a locking ball valve, which improves the installation convenience.

[0005] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the present application includes:

[0006] In a first aspect, the present application provides a locking ball valve, which comprises a valve body and a rotating assembly. The valve body comprises a valve body and a convex neck, the convex neck protrudes from the outer surface of the valve body, the valve body is provided with a flow passage, and the convex neck is provided with a first accommodating space communicated with the flow passage. The rotating assembly comprises a valve core and a valve rod connected with each other, the valve core is arranged in the flow passage and can selectively conduct the flow passage, and the valve rod is arranged in the first accommodating space. The outer peripheral surface of the valve rod is provided with a limiting pin, the convex neck is provided with a limiting opening matched with the limiting pin, and along the axial direction of the convex neck, the convex neck has a first end face away from the valve body, and the limiting opening penetrates the first end face.

[0007] The locking ball valve provided by the present application has the limiting opening penetrating the end of the convex neck away from the valve body along the axial direction of the convex neck. The limiting pin can be assembled from the radial direction of the convex neck and from the axial direction of the convex neck and the limiting opening, which expands the installation space of the limiting pin, facilitates the installation of the limiting pin into the limiting opening, improves the installation convenience, and the limiting pin can be assembled last after the rotating assembly is completely installed in the valve body. The limiting pin is less limited by the first end face in the installation space, and the limiting pin is more easily installed into the limiting opening from the penetration of the first end face, which improves the installation convenience.

[0008] Optionally, along the radial direction of the convex neck, the convex neck has a first inner peripheral surface and a first outer peripheral surface arranged oppositely, and the limiting opening penetrates the first inner peripheral surface and the first outer peripheral surface.

[0009] In the above scheme, the limit pin can not only be assembled from the axial direction of the convex neck, but also from the radial direction and the limit opening. The limit opening penetrating the first inner circumferential surface and the first outer circumferential surface further expands the installation space of the limit pin. The installer can more freely choose the installation direction and method according to the actual operation scene and tool usage, such as directly inserting the limit pin from the radial direction of the convex neck in some narrow installation environment, avoiding the problem of difficult operation due to limited installation space.

[0010] Optionally, along the circumferential direction of the convex neck, the limit opening has oppositely arranged first and second ends. The first end forms a first plane with the axis of the convex neck, and the second end forms a second plane with the axis of the convex neck. The included angle between the first plane and the second plane is 90°.

[0011] In the above scheme, the valve core of the locking ball valve is usually turned to realize the conduction and closing of the flow passage. The angle range can enable the valve core to have a suitable rotation angle range, so that the valve can be relatively smoothly changed from the fully closed state to the fully open state, or vice versa. For example, this angle can enable the operator to switch the valve state without large-angle rotation when operating the rotating assembly, which is relatively easy to operate and improves the operation efficiency.

[0012] Optionally, along the axial direction of the convex neck, the limit opening has a first bottom surface, a first limit surface, and a second limit surface. The first bottom surface is arranged in a spaced manner with the first end surface. Along the circumferential direction of the convex neck, the first limit surface and the second limit surface are connected to the two ends of the first bottom surface.

[0013] In the above scheme, the first limit surface and the second limit surface arranged along the circumferential direction of the convex neck are connected to the first bottom surface, which can effectively limit the rotation of the limit pin in the circumferential direction, can ensure that the valve core maintains the correct direction during operation, prevents the sealing from being not tight or the valve from being misoperated due to accidental rotation, and ensures the sealing performance and reliability of the ball valve.

[0014] Optionally, the locking ball valve further comprises a protective cover, and the protective cover is sleeved on the convex neck. The protective cover comprises a first peripheral wall and a first annular top wall arranged on the first peripheral wall. The first annular top wall is arranged at one end of the first peripheral wall away from the valve body. Along the axial direction of the convex neck, the first annular top wall blocks the end of the limit opening away from the valve body.

[0015] In the above scheme, the first annular top wall blocks the open end of the limit opening, and the first peripheral wall and the first annular top wall jointly close the limit opening to form a sealed cavity. This can prevent dust, impurities, and the like from entering the limit opening and the inside of the convex neck, avoid the accumulation of the dust, impurities, and the like between the limit pin and the limit opening, affect the cooperation precision of the two, ensure the flexible rotation of the rotating assembly, and ensure the normal operation of the valve.

[0016] Optionally, the convex neck is provided with a locking hole, the locking hole penetrates the convex neck along a radial direction of the convex neck.

[0017] The outer circumferential surface of the valve rod is provided with a first magnetic steel groove, an axis of the first magnetic steel groove extends along a radial direction of the valve rod, and a spring and a first magnetic steel are arranged in the first magnetic steel groove, the spring connects a bottom wall of the first magnetic steel groove and the first magnetic steel, so that the first magnetic steel is selectively matched with the locking hole.

[0018] In the above scheme, the spring provides the first magnetic steel with stable pre-tightening force. When the rotating assembly is in a suitable position, that is, the first magnetic steel is aligned with the locking hole on the convex neck, the first magnetic steel will automatically pop out and be clamped into the locking hole under the elastic force of the spring, thereby realizing automatic locking of the valve. In addition, the continuous elastic force of the spring keeps the first magnetic steel tightly matched with the locking hole. Even if the valve is affected by factors such as vibration and fluid pressure change during operation, the first magnetic steel will not easily come out of the locking hole, ensuring the stability of the locked state of the valve and ensuring that the valve can reliably be in a closed or open state, maintaining the normal operation of the system.

[0019] Optionally, the limiting opening has a first bottom surface spaced apart from the first end surface along an axial direction of the convex neck, and a distance between the first bottom surface and the first end surface along the axial direction of the convex neck is less than a distance between the locking hole and the first end surface.

[0020] In the above scheme, the position relationship between the limiting opening and the locking hole can avoid interference between each other. It can be understood that, since the distance between the first bottom surface and the first end surface is less than the distance between the locking hole and the first end surface, the first magnetic steel can be prevented from falling out of the limiting opening to cause product failure.

[0021] Optionally, the valve rod is provided with a first mounting hole, and the limiting pin is mounted in the first mounting hole, and an included angle between an axis of the first magnetic steel groove and an axis of the first mounting hole is 90°.

[0022] In the above scheme, the included angle between the axis of the first magnetic steel groove and the axis of the first mounting hole meets the above range, which can ensure that the limiting pin and the first magnetic steel do not interfere with each other in space. On the other hand, the processing equipment is easier to position and operate, without the need for complex tooling fixtures or special processing technology, thereby reducing the processing difficulty and improving the processing efficiency.

[0023] Optionally, along a radial direction of the protective cover, the first peripheral wall has a second inner circumferential surface facing the convex neck, and along a radial direction of the convex neck, the second inner circumferential surface blocks the locking hole.

[0024] In the above scheme, the second inner circumferential surface of the protective cover blocks the locking hole in the radial direction of the convex neck, so that on the one hand, the locking hole can be protected from mechanical damage such as collision and scratching from the outside, prolonging the service life of the locking mechanism and ensuring the reliability of the locking function of the ball valve; on the other hand, the first magnetic steel can be prevented from falling out of the locking hole to cause product failure.

[0025] Optionally, in the radial direction of the convex neck, the convex neck has oppositely arranged first inner and outer circumferential surfaces, and the limiting opening penetrates the first inner circumferential surface and is arranged in a spaced manner with the first outer circumferential surface.

[0026] In the above scheme, the limiting opening is arranged in a spaced manner with the first outer circumferential surface, so that the outer circumferential surface of the convex neck remains continuous and complete, significantly improving the bending and torsion resistance of the convex neck, helping to maintain the strength and stability of the overall structure of the convex neck, and at the same time, reducing the occurrence of external medium or impurities entering the inside of the convex neck, thereby protecting the rotating assembly and prolonging its service life. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the description of the specific embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0028] Figure 1 The overall structure schematic diagram in some embodiments of the present application;

[0029] Figure 2 The overall explosion structure schematic diagram in some embodiments of the present application;

[0030] Figure 3 The overall side view structure schematic diagram in some embodiments of the present application;

[0031] Figure 4 The overall side view structure schematic diagram in some embodiments of the present application; Figure 3 The cross-sectional structure schematic diagram in the A-A direction.

[0032]

Explanation of reference signs

[0033] 100: valve body;

[0034] 110: valve body; 110a: flow passage;

[0035] 120: convex neck; 120a: first accommodating space;

[0036] 121: limiting opening; 121a: first end; 121b: second end; 121c: first face; 121d: second face; 121e: first bottom face; 121f: first limiting face; 121g: second limiting face;

[0037] 122: first end face;

[0038] 123: first inner peripheral face; 124: first outer peripheral face;

[0039] 125: locking hole;

[0040] 200: rotating assembly;

[0041] 210: valve core;

[0042] 220: valve rod; 221: limiting pin; 222: first magnetic steel; 223: first magnetic steel groove; 224: spring;

[0043] 300: protective cover; 310: first peripheral wall; 320: first annular top wall. DETAILED DESCRIPTION

[0044] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0045] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover not exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, and are not intended to describe a particular order or primary and secondary relationship.

[0046] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments.

[0047] In the description of the present application, it should be noted that unless specifically defined and limited, the terms "mounting", "connection", "connecting", "attachment" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] The term "and / or" in the present application is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents that the front and rear associated objects have an "or" relationship.

[0049] "Multiple" appearing in the present application refers to two or more (including two), and similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0050] In the valve technical field, the locking ball valve is widely used in various fluid conveying systems, and its performance directly affects the safe and stable operation of the system and the maintenance cost. The traditional locking ball valve usually adopts a radial limiting structure, which realizes mechanical constraint of the rotation angle of the valve core by opening a limiting groove in the rotating assembly or the side wall of the valve body, and cooperating with a limiting pin.

[0051] In the related art, the limiting groove is often arranged at a relatively concealed and space-limited position. When the installer installs the limiting component into the limiting groove, the operation difficulty is extremely great, not only a large amount of time is consumed, but also the installation precision is difficult to guarantee due to the inconvenience of operation, which undoubtedly increases the installation cost and the risk of component damage in the installation process. Therefore, the installation convenience of the locking ball valve is a technical problem to be solved at present.

[0052] In view of this, in order to improve the installation convenience, the present application discloses a locking ball valve. The valve body 100 includes a valve body 110 and a convex neck 120 protruding from the outer surface of the valve body 110. The convex neck 120 is provided with a limiting opening 121. Along the axial direction of the convex neck 120, the convex neck 120 has a first end face 122 away from the valve body 110, and the limiting opening 121 penetrates the first end face 122. Therefore, the installation space of the limiting component is enlarged, the limiting component is conveniently installed into the limiting opening 121, and the installation convenience is improved.

[0053] The locking ball valve according to the present application is described below with reference to the accompanying drawings.

[0054] Please refer to Figure 1 and Figure 2The locking ball valve according to the embodiment of the present application comprises a valve body 100 and a rotating assembly 200.

[0055] The valve body 100 comprises a valve body 110 and a convex neck 120 protruding from the outer surface of the valve body 110, the valve body 110 is provided with a flow channel 110a, and the convex neck 120 is provided with a first accommodating space 120a in communication with the flow channel 110a; it can be understood that the convex neck 120 and the valve body 110 can be an integral molded part, and the first accommodating space 120a is used to accommodate part of the rotating assembly 200.

[0056] The rotating assembly 200 comprises a valve core 210 and a valve rod 220 connected with each other, the valve core 210 is arranged in the flow channel 110a and selectively guides the flow channel 110a, and the valve rod 220 is arranged in the first accommodating space 120a; that is, the valve core 210 selectively guides the flow channel 110a, and the locking and opening of the valve can be realized.

[0057] The outer circumferential surface of the valve rod 220 is provided with a limiting pin 221, the convex neck 120 is provided with a limiting opening 121 matched with the limiting pin 221, along the axial direction of the convex neck 120, the convex neck 120 has a first end surface 122 away from the valve body 110, and the limiting opening 121 penetrates the first end surface 122; that is, the limiting opening 121 penetrates the end of the convex neck 120 away from the valve body 110 along the axial direction of the convex neck 120, the limiting pin 221 can be assembled not only from the radial direction of the convex neck 120 but also from the axial direction of the convex neck 120 and the limiting opening 121, the installation space of the limiting pin 221 is expanded, the limiting pin 221 is facilitated to be installed into the limiting opening 121, and the installation convenience is improved.

[0058] When being installed, the limiting pin 221 can be assembled last after the rotating assembly 200 is completely installed into the valve body 100, the limiting pin 221 is more easily entered into the limiting opening 121 from the penetration of the first end surface 122, the installation convenience is improved, and the limitation of the first end surface 122 on the installation space of the limiting pin 221 is reduced.

[0059] In other embodiments, please refer to Figure 4 Along the radial direction of the convex neck 120, the convex neck 120 has a first inner circumferential surface 123 and a first outer circumferential surface 124 arranged oppositely, and the limiting opening 121 penetrates the first inner circumferential surface 123 and the first outer circumferential surface 124; that is, the limiting opening 121 not only penetrates the first end surface 122 of the convex neck 120 along the axial direction of the convex neck 120, but also penetrates both ends of the convex neck 120 along the radial direction of the convex neck 120; in this way, the installation convenience of the limiting pin 221 is further improved.

[0060] It can be understood that the limiting pin 221 can not only be assembled from the axial direction of the convex neck 120, but also can be assembled from the radial direction with the limiting opening 121, and the limiting opening 121 penetrating the first inner circumferential surface 123 and the first outer circumferential surface 124 further expands the installation space of the limiting pin 221, and the installer can more freely select the installation direction and mode according to the actual operation scene and tool use, such as in some narrow installation environment, the limiting pin 221 can be directly inserted from the radial direction of the convex neck 120, avoiding the problem that it is difficult to operate due to limited installation space.

[0061] In addition, the limiting opening 121 penetrating the first inner circumferential surface 123 and the first outer circumferential surface 124 can better cooperate the limiting pin 221 with the convex neck 120 during installation, and when the limiting pin 221 passes through the limiting opening 121, the installation position and state of the limiting pin 221 can be directly observed from the first outer circumferential surface 124, ensuring that the limiting pin 221 is accurately clamped into the appropriate position, thereby ensuring the assembly accuracy between the rotating assembly 200 and the convex neck 120, and making the valve work more stably and reliably.

[0062] At the same time, the limiting opening 121 completely penetrates the first inner circumferential surface 123 and the first outer circumferential surface 124 to form a straight-through hole, which reduces the processing complexity and facilitates the one-time formation of the opening penetrating the first inner circumferential surface 123 and the first outer circumferential surface 124.

[0063] In other embodiments, please refer to Figure 2 and Figure 3 Along the circumference of the convex neck 120, the limiting opening 121 has a first end 121a and a second end 121b arranged opposite to each other, the first end 121a forms a first face 121c with the axis of the convex neck 120, and the second end 121b forms a second face 121d with the axis of the convex neck 120, and the included angle between the first face 121c and the second face 121d is 90°.

[0064] It can be understood that the valve core 210 of the locking ball valve is usually rotated to realize the conduction and closing of the flow passage 110a, and this angle range can make the valve core 210 have a suitable rotation angle interval, and the valve can be relatively smoothly changed from the fully closed state to the fully open state in this range, so that the operator can switch the valve state without large-angle rotation when operating the rotating assembly 200, which is relatively easy to operate and improves the operation efficiency.

[0065] In addition, the suitable included angle can avoid excessive stress concentration at both ends of the limiting opening 121. If the included angle is too small or too large, the stress at the end of the limiting opening 121 can be too concentrated, causing material fatigue or even damage. The 90° included angle can make the stress more dispersedly distributed in the circumferential direction of the limiting opening 121, enhancing the strength and durability of the convex neck 120 structure.

[0066] In other embodiments, referring to Figure 2 and Figure 3 , along the axial direction of the convex neck 120, the limiting opening 121 has a first bottom surface 121e, a first limiting surface 121f and a second limiting surface 121g, the first bottom surface 121e is arranged at a distance from the first end surface 122, and along the circumferential direction of the convex neck 120, the first limiting surface 121f and the second limiting surface 121g are connected to both ends of the first bottom surface 121e, that is, the first bottom surface 121e, the first limiting surface 121f and the second limiting surface 121g collectively enclose the limiting opening 121, and the limiting pin 221 can slide in the limiting opening 121. Thus, when the operator rotates the rotating assembly 200 to open or close the valve, the limiting pin 221 slides on the first bottom surface 121e, and the first limiting surface 121f and the second limiting surface 121g can effectively limit the rotation of the limiting pin 221 in the circumferential direction, ensuring that the valve core maintains the correct direction during operation, preventing the valve from being misoperated due to accidental rotation, and ensuring the sealing and reliability of the ball valve.

[0067] It can be understood that, along the axial direction of the convex neck 120, one end of the first limiting surface 121f and one end of the second limiting surface 121g are connected to both ends of the first bottom surface 121e, and the other end of the first limiting surface 121f and the other end of the second limiting surface 121g are connected to the first end surface 122.

[0068] As an example, the limiting pin 221 can be fixedly connected with the valve stem 220, so that the limiting pin 221 does not rotate relative to the valve stem 220, thereby facilitating the rotation of the rotating assembly 200 and improving user experience.

[0069] In other embodiments, referring to Figure 2 and Figure 3 , the locking ball valve further comprises a protective cover 300, and the protective cover 300 is sleeved on the convex neck 120, that is, the protective cover 300 can protect the convex neck 120.

[0070] The protective cover 300 comprises a first peripheral wall 310 and a first annular top wall 320 arranged on the first peripheral wall 310. The first annular top wall 320 is arranged at an end of the first peripheral wall 310 away from the valve body 110 and along the axial direction of the protruding neck 120. The first annular top wall 320 blocks an end of the limiting opening 121 away from the valve body 110, that is, the first annular top wall 320 blocks the open end of the limiting opening 121. The first annular top wall 320 and the first peripheral wall 310 jointly enclose the limiting opening 121 to form a sealed cavity. This can prevent dust, impurities and the like from entering the inside of the limiting opening 121 and the protruding neck 120 and prevent the dust, impurities and the like from accumulating between the limiting pin 221 and the limiting opening 121 to affect the fitting precision of the limiting pin 221 and the limiting opening 121. This ensures that the rotating assembly 200 rotates flexibly and guarantees normal operation of the valve.

[0071] In other embodiments, please refer to Figure 2 , Figure 3 and Figure 4 The protruding neck 120 is provided with a locking hole 125. The locking hole 125 penetrates the protruding neck 120 along the radial direction of the protruding neck 120. It can be understood that the locking hole 125 provides more limiting positions to facilitate limiting the rotating assembly 200.

[0072] The outer peripheral surface of the valve rod 220 is provided with a first magnetic steel groove 223. The axis of the first magnetic steel groove 223 extends along the radial direction of the valve rod 220. The first magnetic steel groove 223 is provided with a spring 224 and a first magnetic steel 222. The spring 224 connects the bottom wall of the first magnetic steel groove 223 and the first magnetic steel 222 to selectively enable the first magnetic steel 222 to cooperate with the locking hole 125. It can be understood that the spring 224 provides a stable pre-tightening force for the first magnetic steel 222. When the rotating assembly 200 is in a suitable position, that is, the first magnetic steel 222 is aligned with the locking hole 125 on the protruding neck 120, the first magnetic steel 222 will automatically pop out and be clamped into the locking hole 125 under the elastic force of the spring 224, thereby achieving automatic locking of the valve.

[0073] This automatic locking function does not require additional manual operation, improves the convenience of using the valve, and can ensure that the valve is locked in time at the appropriate time to prevent safety hazards caused by neglecting to lock the valve.

[0074] In addition, the continuous elastic force of the spring 224 enables the first magnetic steel 222 to be closely matched with the locking hole 125. Even if the valve is affected by factors such as vibration and fluid pressure changes during operation, the first magnetic steel 222 will not easily come out of the locking hole 125, ensuring the stability of the locked state of the valve and ensuring that the valve can reliably be in a locked or open state to maintain normal operation of the system.

[0075] In the above scheme, the valve rod 220 is provided with the first magnetic steel 222, which is movable relative to the valve rod 220 in the radial direction of the valve rod 220 so that the first magnetic steel 222 can be selectively matched with the locking hole 125, that is, the first magnetic steel 222 can be matched with the locking hole 125, so as to achieve the locking and fixing of the valve rod 220, and further achieve the locking and fixing of the rotating assembly 200, thereby improving the structural stability.

[0076] It can be understood that when the first magnetic steel 222 moves to the position matched with the locking hole 125, the first magnetic steel 222 enters the locking hole 125, thereby achieving the locking of the rotating assembly 200. This can effectively prevent unauthorized personnel from randomly operating the valve, and avoid abnormal on-off of the fluid due to misoperation, especially in some scenes where fluid control is strictly required, such as chemical production and gas supply, so as to reduce the occurrence of safety accidents caused by misoperation of the valve.

[0077] Compared with the traditional mechanical locking mode, the matching mode of the first magnetic steel 222 and the locking hole 125 is more convenient to operate. Without the need of a complex key or tool, the locking and unlocking of the valve can be achieved only by controlling the change of the magnetic force, thereby improving the operation efficiency.

[0078] When the rotating assembly 200 is locked, the first magnetic steel 222 extends out of the first magnetic steel groove 223 under the elastic force of the spring 224, at least part of the first magnetic steel 222 enters the locking hole 125, thereby achieving the locking of the rotating assembly 200. When the rotating assembly 200 is unlocked, the magnetic member opposite to the first magnetic steel 222 in magnetic property drives the first magnetic steel 222 to overcome the elastic force of the compression spring 224, so that the first magnetic steel 222 moves into the first magnetic steel groove 223, thereby causing the first magnetic steel 222 to exit the locking hole 125 and compress the spring 224, and finally retract into the first magnetic steel groove 223 together with the spring 224, thereby releasing the locking of the rotating assembly 200.

[0079] The magnetic member can be a magnetic steel or other magnetic member opposite to the first magnetic steel 222 in magnetic property, and the present application does not limit this.

[0080] In other embodiments, please refer to Figure 2 and Figure 4 In the axial direction of the convex neck 120, the limiting opening 121 has a first bottom surface 121e, which is arranged in a spaced manner with the first end surface 122, and the distance between the first bottom surface 121e and the first end surface 122 in the axial direction of the convex neck 120 is smaller than the distance between the locking hole 125 and the first end surface 122.

[0081] In the process of operating the rotating assembly 200, the position relationship between the limiting opening 121 and the locking hole 125 can avoid interference between each other. It can be understood that, since the distance between the first bottom surface 121e and the first end surface 122 is smaller than the distance between the locking hole 125 and the first end surface 122, the first magnetic steel 222 can be prevented from falling off from the limiting opening 121 to cause product failure, that is, along the axial direction of the convex neck 120, the height of the first bottom surface 121e is higher than that of the locking hole 125, which reduces the probability of the first magnetic steel 222 entering the limiting opening 121, and ensures that the locking mechanism cannot be misoperated when the limiting operation is performed. Only when the rotating assembly 200 reaches the correct position, the first magnetic steel 222 will enter the locking hole 125 to realize locking.

[0082] It can be understood that, the locking hole 125 is away from the first end surface 122 relative to the first bottom surface 121e, so that the first magnetic steel 222 has more stable support and larger contact area when cooperating with the locking hole 125, which can improve the reliability of locking and ensure the stability of the locking state of the valve.

[0083] In some other embodiments, the valve rod 220 is provided with a first mounting hole, and the limiting pin 221 is mounted in the first mounting hole. The angle between the axis of the first magnetic steel slot 223 and the axis of the first mounting hole is 90°.

[0084] In the above scheme, the angle between the axis of the first magnetic steel slot 223 and the axis of the first mounting hole satisfies the above range, which can ensure that the limiting pin 221 and the first magnetic steel 222 do not interfere with each other in space. On the other hand, the processing equipment is easier to position and operate, without the need for complex tooling fixtures or special processing technology, which reduces the processing difficulty and improves the processing efficiency.

[0085] In addition, the outer peripheral surface of the valve rod 220 is provided with the first mounting hole, and the limiting pin 221 is fixedly arranged in the first mounting hole. On the one hand, it is convenient to install the limiting pin 221 and the valve rod 220 together, and on the other hand, it is helpful to reduce the resistance received by the rotating assembly 200 during rotation, thereby improving the user experience.

[0086] In some other embodiments, please refer to Figure 1 , Figure 2 and Figure 4 , along the radial direction of the protective cover 300, the first peripheral wall 310 has a second inner peripheral surface 301 facing the convex neck 120, and along the radial direction of the convex neck 120, the second inner peripheral surface 301 blocks the locking hole 125.

[0087] In the above scheme, the second inner circumferential surface 301 of the protective cover 300 blocks the locking hole 125 in the radial direction of the convex neck 120, so that on the one hand, the locking hole 125 can be protected from mechanical damage such as collision and scratching from the outside, prolonging the service life of the locking mechanism and ensuring the reliability of the locking function of the ball valve; on the other hand, it can prevent the first magnetic steel 222 from falling out of the locking hole 125 and causing product failure.

[0088] In other embodiments, in the radial direction of the convex neck 120, the convex neck 120 has a first inner circumferential surface 123 and a first outer circumferential surface 124 arranged opposite to each other, and the limiting opening 121 penetrates the first inner circumferential surface 123 and is arranged spaced apart from the first outer circumferential surface 124, that is, the limiting opening 121 does not penetrate the first outer circumferential surface 124, so that the occurrence of external medium or impurities entering the inside of the convex neck 120 during the operation of the ball valve can be reduced, thereby protecting the rotating assembly 200 and prolonging its service life.

[0089] In addition, the limiting opening 121 is arranged spaced apart from the first outer circumferential surface 124, so that the outer circumferential surface of the convex neck 120 remains continuous and complete, significantly improving the bending and torsion resistance of the convex neck 120, and helping to maintain the strength and stability of the overall structure of the convex neck 120. When the ball valve is subjected to certain pressure or external force, the convex neck 120 is less likely to be damaged due to the notch effect caused by the limiting opening 121 penetrating the outer circumferential surface, reducing the risk of stress concentration and the risk of rupture or deformation of the convex neck 120, and improving the reliability and safety of the locking ball valve.

[0090] In a specific embodiment, please refer to Figure 2 , Figure 3 and Figure 4 The locking hole 125 is a plurality of, specifically two, the axes of the two locking holes 125 are collinear, the first magnetic steel 222 is a plurality of, specifically two, and the first magnetic steel groove 223 and the spring 224 are also correspondingly two, when locking, the two first magnetic steels 222 simultaneously enter or exit the corresponding locking holes 125, and at the same time, when the first circumferential wall 310 is sleeved outside the convex neck 120, the inner side surface of the first circumferential wall 310 simultaneously blocks the two locking holes 125, reducing the probability of the first magnetic steel 222 popping out of the locking hole.

[0091] It should be further noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article, or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article, or equipment that includes the element.

[0092] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0093] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0094] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A lock-up ball valve characterized by, The application relates to a lock ball valve. The valve body (100) comprises a valve body (110) and a convex neck (120) which protrudes from the outer surface of the valve body (110), a flow channel (110a) is arranged in the valve body (110), and a first containing space (120a) which communicates with the flow channel (110a) is arranged in the convex neck (120). The rotating assembly (200) comprises a valve core (210) and a valve rod (220) which are connected to each other, the valve core (210) is arranged in the flow channel (110a) and can selectively guide the flow channel (110a) to be open, and the valve rod (220) is arranged in the first containing space (120a). The outer peripheral surface of the valve rod (220) is provided with a limiting pin (221), the convex neck (120) is provided with a limiting opening (121) matched with the limiting pin (221), along the axial direction of the convex neck (120), the convex neck (120) has a first end surface (122) which is away from the valve body (110), and the limiting opening (121) penetrates through the first end surface (122).

2. The locked ball valve of claim 1, wherein, Along the radial direction of the convex neck (120), the convex neck (120) has a first inner peripheral surface (123) and a first outer peripheral surface (124) which are oppositely arranged, and the limiting opening (121) penetrates through the first inner peripheral surface (123) and the first outer peripheral surface (124).

3. The locked ball valve of claim 1, wherein, Along the circumferential direction of the convex neck (120), the limiting opening (121) has a first end (121a) and a second end (121b) which are oppositely arranged, the first end (121a) forms a first surface (121c) with the axis of the convex neck (120), the second end (121b) forms a second surface (121d) with the axis of the convex neck (120), and the included angle between the first surface (121c) and the second surface (121d) is 90 degrees.

4. The locked ball valve of claim 1, wherein, Along the axial direction of the convex neck (120), the limiting opening (121) has a first bottom surface (121e), a first limiting surface (121f) and a second limiting surface (121g), the first bottom surface (121e) is arranged in a spaced mode with the first end surface (122), and the first limiting surface (121f) and the second limiting surface (121g) are connected to the two ends of the first bottom surface (121e) along the circumferential direction of the convex neck (120).

5. The locked ball valve of claim 1, wherein, The lock ball valve further comprises a protective cover (300) which is sleeved on the convex neck (120), the protective cover (300) comprises a first peripheral wall (310) and a first annular top wall (320) arranged on the first peripheral wall (310), the first annular top wall (320) is arranged on one end of the first peripheral wall (310) which is away from the valve body (110), and the first annular top wall (320) blocks one end of the limiting opening (121) which is away from the valve body (110) along the axial direction of the convex neck (120).

6. The locked ball valve of claim 5, wherein, The convex neck (120) is provided with a locking hole (125) penetrating the convex neck (120) along the radial direction of the convex neck (120); The outer circumferential surface of the valve rod (220) is provided with a first magnetic steel groove (223), the axis of the first magnetic steel groove (223) extends along the radial direction of the valve rod (220), the first magnetic steel groove (223) is provided with a spring (224) and a first magnetic steel (222), the spring (224) connects the bottom wall of the first magnetic steel groove (223) and the first magnetic steel (222), so that the first magnetic steel (222) can selectively cooperate with the locking hole (125).

7. The locked ball valve of claim 6, wherein, Along the axial direction of the convex neck (120), the limiting opening (121) has a first bottom surface (121e), the first bottom surface (121e) is arranged in a spaced manner with the first end surface (122), and the distance between the first bottom surface (121e) and the first end surface (122) along the axial direction of the convex neck (120) is less than the distance between the locking hole (125) and the first end surface (122).

8. The locked ball valve of claim 6, wherein, The valve rod (220) is provided with a first mounting hole, the limiting pin (221) is mounted in the first mounting hole, and the angle between the axis of the first magnetic steel groove (223) and the axis of the first mounting hole is 90°.

9. The locked ball valve of claim 6, wherein, Along the radial direction of the protective cover (300), the first circumferential wall (310) has a second inner circumferential surface (301) facing the convex neck (120), and along the radial direction of the convex neck (120), the second inner circumferential surface (301) blocks the locking hole (125).

10. The locked ball valve of claim 1, wherein, Along the radial direction of the convex neck (120), the convex neck (120) has a first inner circumferential surface (123) and a first outer circumferential surface (124) arranged in a spaced manner, the limiting opening (121) penetrates the first inner circumferential surface (123) and is arranged in a spaced manner with the first outer circumferential surface (124).

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