Labor-saving actuating ball valve

Abstract

The utility model relates to a labor-saving actuating ball valve, which comprises a valve body, a valve element, a first valve element, a second valve element and a second valve element, and is characterized in that the valve body is provided with a first fluid opening, a second fluid opening and an internal space; a supporting cylinder is arranged on the inner wall of the internal space and is provided with a mounting through hole; the first fluid opening, the internal space and the second fluid opening form a fluid flowing path; the first valve element is fixedly inserted into the mounting through hole of the supporting cylinder; the first valve element is provided with a fluid through hole, and the fluid through hole penetrates through the first valve element. The utility model relates to a manual valve, which comprises a manual rotating wheel, a screw rod and a second valve core, one end of the screw rod and the manual rotating wheel are fixedly mounted together, the other end of the screw rod and the second valve core are fixedly mounted together, the manual rotating wheel is rotated, and the manual rotating wheel drives the screw rod to drive the second valve core to move. The second valve element selectively opens or blocks the fluid through hole of the first valve element in the moving process.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve field, concretely relates to the ball valve of labor saving actuation. BACKGROUND

[0002] Ball valve is widely used in many fields and many industries, and the main function of the ball valve is the same as other valves (such as stop valve), which is to open or cut off the path of fluid flow. Generally, the ball valve includes a valve stem, a spherical valve core and a valve body, the valve body has a rotating space inside, the spherical valve core is rotatably installed in the rotating space of the valve body, the valve stem and the spherical valve core are fixedly connected, and the spherical valve core is driven to rotate by rotating the valve stem to open or cut off the path of fluid flow. However, this kind of ball valve can only be used for opening or cutting off the fluid with small flow, slow flow rate and small fluid impact force, and when the fluid with large flow, fast flow rate and large impact force is encountered, the spherical valve core is extremely difficult to rotate by the valve stem. For example, a ball valve with a multiple sealing structure packing gland is disclosed in the Chinese utility model patent with the application number CN202421992115.9, which includes a valve body, a valve stem is vertically installed inside the valve body, a packing groove is arranged on the upper part of the valve body close to the valve stem, a metal spacer ring is arranged in the middle of the inside of the packing groove, the metal spacer ring is sleeved on the valve stem, the packing groove is divided into upper and lower space, and packing rings are arranged on the upper and lower surfaces of the metal spacer ring. Although the technical problem solved by the patent is different from the present application, it is only mentioned that the ball valve disclosed in the patent also has the above technical problems. SUMMARY

[0003] The utility model discloses a ball valve of labor saving actuation to solve the shortcoming in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model discloses a ball valve of labor saving actuation, which adopts the following technical scheme:

[0005] The valve body has a first fluid opening, a second fluid opening and an internal space, any two of the first fluid opening, the second fluid opening and the internal space are in fluid communication, a support cylinder is arranged on the inner wall of the internal space, the support cylinder has a mounting through hole, and the first fluid opening, the internal space and the second fluid opening form a fluid flow path.

[0006] The first valve core is fixedly inserted into the mounting through hole of the support cylinder, so that the first valve core is fixedly installed on the valve body, the first valve core has a fluid through hole, the fluid through hole penetrates through the first valve core, and any one of the fluid through hole, the first fluid opening, the second fluid opening and the internal space is in fluid communication.

[0007] and a manual rotating wheel, a screw rod, a second valve core, one end of the screw rod is fixedly installed with the manual rotating wheel, the other end of the screw rod is fixedly installed with the second valve core, rotating the manual rotating wheel, the manual rotating wheel drives the screw rod to move the second valve core, the second valve core selectively opens or blocks the fluid through hole of the first valve core in the process of movement, so that the fluid flow path formed by the first fluid opening, the internal space and the second fluid opening is selectively communicated or cut off.

[0008] In some embodiments of the present application, a valve cover is further included, a valve rod telescopic channel is further arranged on the valve body, the valve rod telescopic channel and the internal space of the valve body are selectively in fluid communication or not in fluid communication when the second valve core selectively opens or blocks the fluid through hole of the first valve core; the valve cover and the valve body are fixedly installed together by bolts or screws, and the valve cover covers the valve rod telescopic channel.

[0009] In some embodiments of the present application, a first nut is further included, external threads are arranged on the first nut, the first nut has a first communication channel, the first communication channel penetrates through the first nut, and internal threads are arranged on the inner wall of the first communication channel, the first communication channel is adapted to the screw rod, and the screw rod extends into the first communication channel, so that the screw rod and the first nut are threadedly connected; the valve cover includes a valve cover body and a support sleeve, the valve cover body and the support sleeve are fixedly connected together, the valve cover has a plug-in through hole, the plug-in through hole penetrates through the support sleeve and the valve cover body, at least a part of internal threads are arranged on the inner wall of the plug-in through hole, the first nut is fixedly plugged into the plug-in through hole of the valve cover by internal and external thread connection, so that the first nut is fixedly installed on the valve cover.

[0010] In some embodiments of the present application, a second nut is further included, the second nut has a second communication channel, the second communication channel penetrates through the second nut, and internal threads adapted to the external threads of the screw rod are arranged on the inner wall of the second communication channel, the screw rod passes through the second communication channel, and the screw rod and the second nut are threadedly connected together, so that the screw rod moves relative to the second nut when the screw rod rotates.

[0011] In some embodiments of the present application, a preset number of support arms are further included, one end of the support arm is fixedly connected to the second nut, the other end of the support arm is fixedly connected to the valve cover, so that the second nut and the valve cover maintain a fixed distance and remain stationary.

[0012] In some embodiments of the present application, a connecting plate, a preset number of connecting ears fixedly arranged on the support sleeve of the valve cover, the threaded rod is screwed into the first nut through the through hole on the connecting plate, and the connecting plate and the connecting ears are fixedly connected together through the connecting rod.

[0013] In some embodiments of the present application, the first nut is provided with a first limiting disc and a second limiting disc at two ends respectively, the second limiting disc is close to the external thread of the first nut, the second limiting disc is located in the valve rod telescopic channel of the valve body, the second limiting disc abuts against the inner wall of the valve cover located in the valve rod telescopic channel of the valve body, and the outer diameter of the second limiting disc is greater than the inner diameter of the plug-in channel of the valve cover; the first limiting disc and the connecting plate abut against each other, and the outer diameter of the second limiting disc is greater than the inner diameter of the through hole of the connecting plate.

[0014] In some embodiments of the present application, a connecting column is arranged, which is fixedly connected with the second valve core on one side and is fixedly installed with the threaded rod through the shaft hole cooperation connection mode on the other side, so that the second valve core and the threaded rod are fixedly connected together; the second valve core is made of rubber material.

[0015] In some embodiments of the present application, a chamfer is arranged on the second valve core, which better matches the first valve core.

[0016] The ball valve provided by the present application has the advantages that: the structure of the ball valve is simple, and the assembly and disassembly are simple; when the ball valve is opened, the manual rotating wheel is rotated, the manual rotating wheel drives the threaded rod to move, the threaded rod drives the second valve core to move away from the first valve core, so that the fluid moving path between the first fluid opening, the internal space of the valve body and the second fluid opening is opened; when the ball valve is closed, the manual rotating wheel is reversely rotated, the manual rotating wheel drives the threaded rod to reversely rotate, the movement of the threaded rod drives the second valve core to move, the second valve core blocks the fluid through hole of the first valve core, so that the fluid moving path between the first fluid opening, the internal space of the valve body and the second fluid opening is cut off. Compared with the valve rod deflection structure in the prior art, the structure that the rotation of the threaded rod drives the second valve core to selectively engage or separate from the first valve core is more labor-saving, and is extremely suitable for the fields or environments with large flow, high flow rate and large fluid impact force. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure diagram of the ball valve provided by the present application is provided.

[0018] Figure 2 Another structure diagram of the ball valve provided by the present application is provided.

[0019] Figure 3 Another structural schematic view of the labor-saving actuated ball valve is provided in the utility model. DETAILED DESCRIPTION

[0020] The application will be described in further detail below with specific embodiments and with reference to the drawings. Like elements in different embodiments are denoted by like reference numerals. In the following embodiments, many details are described in order to make the application better understood. However, a person skilled in the art can easily recognize that some features can be omitted in different cases, or can be replaced by other elements, materials or methods. In some cases, some operations related to the application are not shown or described in the specification in order to avoid the core part of the application being overwhelmed by too much description, and it is not necessary to describe these related operations in detail for a person skilled in the art according to the description in the specification and general technical knowledge in the art.

[0021] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be sequentially adjusted or adjusted in a manner that can be easily apparent to a person skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing one embodiment, and do not mean that the composition and / or order is necessary.

[0022] The serial numbers of components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any order or technical meaning. The "connection" and "coupling" in the application include direct and indirect connections (couplings) unless otherwise specified.

[0023] Please refer to Figures 1-3 The application provides a labor-saving actuated ball valve (hereinafter referred to as "the ball valve"), which comprises:

[0024] A valve body 1, the valve body 1 has a first fluid opening 101, a second fluid opening 102, an internal space 100, any two of the first fluid opening 101, the second fluid opening 102, the internal space 100 are in fluid communication; A support cylinder 103 is arranged on the inner wall of the internal space 100, the support cylinder 103 has a mounting through hole 1030; The first fluid opening 101, the internal space 100 and the second fluid opening 102 form a fluid flow path;

[0025] A first valve core 104 is fixedly inserted into the mounting through hole 1030 of the support cylinder 103, so that the first valve core 104 is fixedly mounted on the valve body 1; the first valve core 104 has a fluid through hole 1040 which penetrates through the first valve core 104, and the fluid through hole 1040 is in fluid communication with any one of the first fluid opening 101, the second fluid opening 102 and the internal space 100;

[0026] A hand rotating wheel 6, a screw rod 7 and a second valve core 12 are provided; one end of the screw rod 7 and the hand rotating wheel 6 are fixedly mounted together, the other end of the screw rod 7 and the second valve core 12 are fixedly mounted together; the hand rotating wheel 6 drives the screw rod 7 to move the second valve core 12 by rotating the hand rotating wheel 6; the second valve core 12 selectively opens or blocks the fluid through hole 1040 of the first valve core 104 in the process of movement, so as to selectively connect or cut off the fluid flow path formed by the first fluid opening 101, the internal space 100 and the second fluid opening 102. In this application, the fluid flow path formed between the first fluid opening 101, the internal space 100 and the second fluid opening 102 refers to, for example, the first fluid opening 101 is a fluid inlet, the second fluid opening 102 is a fluid outlet, fluid enters the internal space 100 from the first fluid opening 101, and then flows into the second fluid opening 102 from the internal space 100, and finally flows out of the second fluid opening 102.

[0027] In some embodiments of the present application, please refer to Figures 1-3 The ball valve further comprises a valve cover 2, and the valve body 1 is further provided with a valve rod telescopic channel 105; the valve rod telescopic channel 105 and the internal space 100 of the valve body 1 are in fluid communication or not in fluid communication by selectively opening or blocking the fluid through hole 1040 of the first valve core 104 by the second valve core 12; the valve cover 2 and the valve body 1 are fixedly mounted together by bolts or screws, and the valve cover 2 covers the valve rod telescopic channel 105. Here, it should be noted that when the second valve core 12 and the first valve core 104 are engaged and the second valve core 12 blocks the fluid through hole 1040, the valve rod telescopic channel 105 and the internal space 100 of the valve body 1 are not in fluid communication; when the second valve core 12 and the first valve core 104 are not engaged, the second valve core 12 does not block the fluid through hole 1040 of the first valve core 104 at this time, and in this state, the valve rod telescopic channel 105 and the internal space 100 of the valve body 1 are in fluid communication.

[0028] In some embodiments of the present application, please refer to Figures 1-3The ball valve further comprises a first nut 3, the first nut 3 is provided with external threads, the first nut 3 has a first communication channel 30, the first communication channel 30 penetrates the first nut 3, and the inner wall of the first communication channel 30 is provided with internal threads, the first communication channel 30 is matched with the screw rod 7, and the screw rod 7 extends into the first communication channel 30, so that the screw rod 7 and the first nut 3 are threadedly connected; the valve cover 2 comprises a valve cover body 21 and a support sleeve 23, the valve cover body 21 and the support sleeve 23 are fixedly connected together, the valve cover 2 has a plug-in through hole 230, the plug-in through hole 230 penetrates the support sleeve 23 and the valve cover body 21, and at least a part of internal threads is arranged on the inner wall of the plug-in through hole 230, the first nut 3 is fixedly plugged into the plug-in through hole 230 of the valve cover 2 in a manner of internal and external thread connection, so that the first nut 3 is fixedly installed on the valve cover 2. In this application, the first nut 3 and the valve cover 2 are fixed together in a threaded connection manner, of course, they can also be fixedly installed together in other connection manners, for example, the first nut 3 is inserted into the plug-in through hole 230 of the valve cover 2 in a manner of interference fit, and the plug-in through hole 230 is not provided with internal threads.

[0029] In some embodiments of the present application, please refer to Figures 1-3 The ball valve further comprises a second nut 5, the second nut 5 has a second communication channel 50, the second communication channel 50 penetrates the second nut 5, and the inner wall of the second communication channel 50 is provided with internal threads matched with the external threads of the screw rod 7, the screw rod 7 penetrates the second communication channel 50, and the screw rod 7 and the second nut 5 are threadedly connected together, so that the screw rod 7 moves relative to the second nut 5 when the screw rod 7 rotates. In this application, only the first nut 3 can be provided, but in order to make the rotation of the screw rod 7 more stable and safe, the second nut 5 is provided, so that the screw rod 7 moves in the second nut 5 and the first nut 3 at the same time when the screw rod 7 rotates, thereby greatly enhancing the stability of the movement of the screw rod 7.

[0030] In some embodiments of the present application, please refer to Figures 1-3The ball valve further comprises a preset number of support arms 9, one end of the support arms 9 is fixedly connected to the second nut 5, the other end of the support arms 9 is fixedly connected to the valve cover 2, so that the second nut 5 and the valve cover 2 keep a fixed distance and keep still. In this application, the fixed connection between the support arms 9 and the second nut 5, the valve cover 2 is welding, of course, it can also be other fixed connection mode, such as bolt connection, screw connection and so on. The support arms 9 can keep the second nut 5 and the first nut 3 at a fixed distance, and support the second nut 5, so that the screw rod 7 can move relative to the second nut 5 when the screw rod 7 rotates.

[0031] In some embodiments of the application, please refer to Figures 1-3 The ball valve further comprises a connecting plate 4, a preset number of connecting ears 24, the connecting ears 24 are fixedly arranged on the support sleeve 23 of the valve cover 2, the screw rod 7 is screwed into the first nut 3 through the through hole 40 on the connecting plate 4, and the connecting plate 4 and the connecting ears 24 are fixedly connected together through the connecting rod 8. In this application, the connecting plate 4 and the connecting ears are fixedly connected together through the connecting rod 8, which can make the movement of the screw rod 7 more stable and reliable.

[0032] In some embodiments of the application, please refer to Figures 1-3 The first nut 3 is provided with a first limiting disc 31 and a second limiting disc 32 at both ends respectively, the second limiting disc 32 is close to the external thread of the first nut 3, the second limiting disc 32 is located in the valve rod telescopic channel 105 of the valve body 1, the second limiting disc 32 abuts against the inner wall of the valve cover 2 located in the valve rod telescopic channel 105 of the valve body 1, and the outer diameter of the second limiting disc 32 is greater than the inner diameter of the plug-in channel 230 of the valve cover 2; the first limiting disc 31 and the connecting plate 4 abut against each other, and the outer diameter of the second limiting disc 31 is greater than the inner diameter of the through hole 40 of the connecting plate 4.

[0033] In some embodiments of the application, please refer to Figures 1-3 The ball valve further comprises a connecting column 11, which is fixedly connected with the second valve core 12 on one side, and is fixedly installed with the screw rod 7 through the shaft hole matching connection mode on the other side, so that the second valve core 12 and the screw rod 7 are fixedly connected together; the second valve core 12 is made of rubber material. In this way, the second valve core 12 made of rubber material can better adhere to the first valve core 104, and the sealing performance is better.

[0034] In some embodiments of the application, please refer to Figures 1-3The second valve core 12 is provided with a chamfer 120, which is better matched with the first valve core 104.

[0035] The labor-saving actuated ball valve provided by the application has simple structure, is easy to assemble and disassemble, when opening the ball valve, rotating the manual rotating wheel, the manual rotating wheel drives the screw rod to move, the screw rod drives the second valve core to move away from the first valve core, so that the fluid moving path between the first fluid opening, the internal space of the valve body and the second fluid opening is opened; when closing the ball valve, reversely rotating the manual rotating wheel, the manual rotating wheel drives the screw rod to reversely rotate, the screw rod moving drives the second valve core to move, the second valve core blocks the fluid through hole of the first valve core, so that the fluid moving path between the first fluid opening, the internal space of the valve body and the second fluid opening is cut off. Compared with the valve rod deflection type structure in the prior art, the structure that the screw rod rotating drives the second valve core to selectively engage or separate from the first valve core is more labor-saving, and is extremely suitable for the fields or environments with large flow, high flow rate and large fluid impact force.

[0036] The above examples are only for illustrating the technical concept and characteristics of the application, the purpose is to enable the person skilled in the art to understand the content of the application and implement it, and cannot limit the protection scope of the application. Any equivalent changes or modifications made according to the spirit and essence of the application shall be covered within the protection scope of the application.

Claims

1. A ball valve with power assisted actuation, characterized in that The utility model provides a valve body, the valve body has first fluid opening, second fluid opening, internal space, any two of first fluid opening, second fluid opening, internal space are in fluid intercommunication, and the support cylinder is arranged on the inner wall of internal space, the support cylinder has the installation through -hole, and first fluid opening, internal space and second fluid opening form a fluid flow path, First valve core, first valve core is fixedly inserted into the installation through -hole of support cylinder, so that first valve core is fixedly installed on the valve body, first valve core has fluid through -hole, fluid through -hole is through first valve core, and fluid through -hole and any one of first fluid opening, second fluid opening, internal space are in fluid intercommunication, And manual rotating wheel, screw, second valve core, one end of screw and manual rotating wheel are fixedly installed together, the other end of screw and second valve core are fixedly installed together, rotate manual rotating wheel, manual rotating wheel drives screw and drives second valve core to move, second valve core selectively opens or blocks the fluid through -hole of first valve core in the course of moving, so that selectively intercommunicate or cut off the fluid flow path formed by first fluid opening, internal space and second fluid opening. Also include valve cover, the valve body is further provided with valve rod telescopic channel, the valve rod telescopic channel and the internal space of valve body are in fluid intercommunication or fluid not intercommunication selectively when second valve core selectively opens or blocks the fluid through -hole of first valve core, valve cover and valve body are fixedly installed together by bolt or screw, and valve cover covers on valve rod telescopic channel.

2. The effort-saving actuated ball valve according to claim 1, characterized in that Also include first nut, first nut is provided with outer thread, first nut has first communication channel, first communication channel is through first nut, and the inner wall of first communication channel is provided with inner thread, first communication channel and screw are adapted, and screw extends into first communication channel, so that screw and first nut are threadedly connected, valve cover includes valve cover main part, support sleeve, valve cover main part and support sleeve are fixedly connected together, valve cover has insertion through -hole, insertion through -hole is through valve cover main part and support sleeve, at least one part of inner thread is arranged on the inner wall of insertion through -hole, first nut is fixedly inserted into the insertion through -hole of valve cover by inner and outer thread connection, so that first nut is fixedly installed on valve cover.

3. The effort-saving actuated ball valve according to claim 2, characterized in that Also include second nut, second nut has second communication channel, second communication channel is through second nut, and the inner wall of second communication channel is provided with inner thread, which is adapted to the outer thread of screw, screw passes through second communication channel, and screw and second nut are threadedly connected together, so that when screw rotates, screw moves relative to second nut.

4. The effort-saving actuated ball valve according to claim 2, characterized in that ​ 5. The effort-saving actuated ball valve according to claim 4, characterized in that Also include a preset number of support arms, one end of the support arm fixedly connected to the second nut, the other end of the support arm fixedly connected to the valve cover, so that the second nut and the valve cover between the fixed distance and keep still.

6. The effort-saving actuated ball valve according to claim 3, characterized in that Also include a connecting plate, a preset number of connecting ears, the connecting ears are fixedly provided on the support sleeve of the valve cover, the screw rod passes through the through hole on the connecting plate and is screwed into the first nut, and the connecting plate and the connecting ears are fixedly connected together through a connecting rod.

7. The effort-saving actuated ball valve according to claim 6, characterized in that The first nut is provided with a first limiting disc and a second limiting disc at both ends respectively, the second limiting disc is close to the external thread of the first nut, the second limiting disc is located in the valve rod telescopic channel of the valve body, the second limiting disc abuts against the inner wall of the valve cover located in the valve rod telescopic channel of the valve body, and the outer diameter of the second limiting disc is greater than the inner diameter of the plug-in channel of the valve cover; the first limiting disc and the connecting plate abut against each other, and the outer diameter of the second limiting disc is greater than the inner diameter of the through hole of the connecting plate.

8. The effort-saving actuated ball valve according to claim 1, characterized in that The connecting column is fixedly installed together with the second valve core and the screw rod through the shaft hole cooperation connection mode, so that the second valve core and the screw rod are fixedly connected together; the second valve core is made of rubber material.

9. The effort-saving actuated ball valve according to claim 1, characterized in that The second valve core is provided with a chamfer, which better fits the first valve core. The second valve core is provided with a chamfer, which better fits the first valve core.

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