Limiting structure of partial rotary valve electric driving device

Abstract

The utility model relates to the field of partial rotary valves, in particular to a partial rotary valve electric driving device limiting structure which comprises a rotary valve assembly, a driving assembly is arranged at the top of the rotary valve assembly, the rotary valve assembly comprises a valve cavity, sealing sleeves are arranged at the top and the bottom of the valve cavity, and a ball valve is arranged in the valve cavity. Sealing parts are arranged at the top and the bottom of the ball valve and rotationally connected with the sealing sleeve, a valve bottom cover is fixedly installed at the bottom end of the sealing sleeve at the bottom of the valve cavity, a limiting block is fixedly installed at the bottom end of the sealing part at the bottom of the ball valve, a limiting groove is formed in the top of the valve bottom cover, and the limiting block is of a butterfly-shaped structure. And the limiting block is arranged in the limiting groove, an angle sensor is fixedly installed at the bottom of the limiting block, and the effect of effectively avoiding damage caused by excessive rotation is achieved.

Description

Technical Field

[0001] This application relates to the field of part-turn valves, and in particular to a limit structure for an electric drive device of a part-turn valve. Background Art

[0002] A part-turn valve is a valve that can complete the opening or closing action with a rotation operation of less than 360 degrees. Such valves are usually used to control the flow of fluids, and are characterized by simple operation and fast response. Common part-turn valves include ball valves, butterfly valves, and cock valves, etc. An electric drive device for a part-turn valve is a device used to drive these valves to open and close automatically. This drive device rotates the operating mechanism of the valve through electricity, thereby realizing the control of the fluid in the pipeline. Compared with manual operation, electric drive provides a higher degree of automation and convenience.

[0003] Existing part-turn valves driven by electricity usually limit the position through the self-locking characteristics of the reduction gear set. However, during use, it is prone to excessive rotation and damage, resulting in the valve not stopping at the correct position and not being able to accurately stop at the fully open and fully closed positions, which is not convenient for use. Summary of the Utility Model

[0004] This application provides a limit structure for an electric drive device of a part-turn valve to solve the problems raised in the above background art.

[0005] The above technical object of this application is achieved through the following technical solutions:

[0006] A limit structure for an electric drive device of a part-turn valve includes a swing valve assembly. A drive assembly is provided at the top of the swing valve assembly. The swing valve assembly includes a valve cavity. Sealing sleeves are provided at both the top and bottom of the valve cavity. A ball valve is provided inside the valve cavity. Sealing parts are provided at both the top and bottom of the ball valve. The sealing parts are rotatably connected to the sealing sleeves. A valve bottom cover is fixedly installed at the bottom end of the sealing sleeve at the bottom of the valve cavity. A limit block is fixedly installed at the bottom end of the sealing part at the bottom of the ball valve. A limit groove is opened at the top of the valve bottom cover. The limit block has a butterfly shape and is arranged inside the limit groove. An angle sensor is fixedly installed at the bottom of the limit block.

[0007] By adopting the above - mentioned solution, a driving component is provided at the top of the rotary valve assembly, which facilitates the driving component to control the opening or closing of the rotary valve assembly. The sealing part is rotatably connected to the sealing sleeve, which facilitates the rotation of the ball valve inside the valve cavity and can play a sealing role to prevent the leakage of the flowing medium. The limiting block is in a butterfly structure and is arranged inside the limiting groove, which facilitates the limiting block to limit the rotation of the ball valve and prevent the ball valve from rotating excessively during use, so that the ball valve can stably stop at the fully - open position or the fully - closed position, which is beneficial to improving the service life and stability. An angle sensor is fixedly installed at the bottom of the limiting block, which facilitates the monitoring of the rotation angle of the ball valve, thereby conveniently outputting an electrical signal to indicate the position of the ball valve.

[0008] Further, a convex - block groove is formed on the inner side surface of the limiting groove. Guide sliding grooves are formed at both ends of the limiting block, and spring convex - blocks are slidably connected inside the guide sliding grooves.

[0009] By adopting the above - mentioned solution, guide sliding grooves are formed at both ends of the limiting block, and spring convex - blocks are slidably connected inside the guide sliding grooves, which facilitates the spring convex - blocks to engage with the convex - block groove when the ball valve is in the fully - open or fully - closed state.

[0010] Further, one end of the spring convex - block is in a spherical structure, and a return spring is fixedly installed at the other end of the spring convex - block. The other end of the return spring is fixedly connected to the guide sliding groove.

[0011] By adopting the above - mentioned solution, the other end of the return spring is fixedly connected to the guide sliding groove, which facilitates the return spring to provide elastic force to push the spring convex - block outwards.

[0012] Further, a micro - motion groove is formed in the middle of the inner side of the limiting block, and a micro - switch is fixedly installed inside the micro - motion groove.

[0013] By adopting the above - mentioned solution, a micro - motion groove is formed in the middle of the inner side of the limiting block, and a micro - switch is fixedly installed inside the micro - motion groove, which facilitates the fixed installation of the micro - switch inside the limiting block.

[0014] Further, switch contacts are provided at both ends of the micro - switch. A trigger rod is inserted inside the return spring. One end of the trigger rod is fixedly connected to the spring convex - block, and the other end of the trigger rod faces the switch contact.

[0015] By adopting the above - mentioned solution, one end of the trigger rod is fixedly connected to the spring convex - block, and the other end of the trigger rod faces the switch contact, which facilitates the trigger rod to keep pressing the switch contact when the ball valve is in a non - fully - open and non - fully - closed state. When the ball valve enters the fully - open or fully - closed state, the spring convex - block pops out, causing the trigger rod to disengage from pressing the switch contact, thereby generating an electrical signal to control the driving component to stop power output and avoid the occurrence of excessive rotation.

[0016] Further, communication pipes are provided at both ends of the valve cavity, and a communication flange is fixedly installed at one end of each communication pipe.

[0017] By adopting the above solution, since communication pipes are provided at both ends of the valve cavity and a communication flange is fixedly installed at one end of each communication pipe, it is convenient to connect the device to an external pipeline, facilitating the device to control the flow and closure of the pipeline.

[0018] Further, a connecting shaft is fixedly installed at the top of the sealing part of the ball valve, and a positioning groove is provided on one side at the top of the connecting shaft.

[0019] By adopting the above solution, since a connecting shaft is fixedly installed at the top of the sealing part of the ball valve and a positioning groove is provided on one side at the top of the connecting shaft, it is convenient for the driving component to drive the ball valve to rotate.

[0020] Further, the driving component includes a manual-electric switching module. A speed changer is provided on the top of the manual-electric switching module, and a driving motor is provided on one side of the speed changer.

[0021] By adopting the above solution, since a speed changer is provided on the top of the manual-electric switching module and a driving motor is provided on one side of the speed changer, it is convenient for the speed changer to adjust the output speed of the driving motor, thereby increasing the torque and facilitating more stable control of the rotation of the ball valve.

[0022] Further, a manual rotating wheel is provided on one side of the manual-electric switching module, and a manual-electric conversion wrench is provided on the other side of the manual-electric switching module.

[0023] By adopting the above solution, since a manual rotating wheel is provided on one side of the manual-electric switching module and a manual-electric conversion wrench is provided on the other side of the manual-electric switching module, it is convenient for the manual-electric conversion wrench to control the switching between manually rotating the ball valve and electrically rotating the ball valve of the device, and the manual rotating wheel facilitates rotating the ball valve when manually rotating it.

[0024] In summary, the present application has the following technical effects:

[0025] Since a driving component is provided on the top of the swing valve component, it is convenient for the driving component to control the opening or closing of the swing valve component. Since the sealing part is rotatably connected to the sealing sleeve, it is convenient for the ball valve to rotate inside the valve cavity and can play a sealing role to prevent the leakage of the flowing medium. Since the limiting block has a butterfly structure and is arranged inside the limiting groove, it is convenient for the limiting block to limit the rotation of the ball valve, preventing the ball valve from rotating excessively during use and enabling the ball valve to stably stop in the fully open position or the fully closed position, which is beneficial to improving the service life and stability. Since an angle sensor is fixedly installed at the bottom of the limiting block, it is convenient to monitor the rotation angle of the ball valve, thereby facilitating the output of an electrical signal to indicate the position of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is the external shape structure diagram of the present application;

[0027] Figure 2 It is the sectional view of the swing valve assembly of the present application;

[0028] Figure 3 It is the three-dimensional structure diagram of the ball valve of the present application;

[0029] Figure 4 It is the sectional view of the limit block of the present application;

[0030] Figure 5 It is the sectional view of the valve bottom cover of the present application.

[0031] In the figure, 101 is the swing valve assembly; 10101 is the valve cavity; 10102 is the sealing sleeve; 10103 is the valve bottom cover; 10104 is the connecting pipe; 10105 is the connecting flange; 10106 is the ball valve; 10107 is the sealing part; 10108 is the connecting shaft; 10109 is the positioning groove; 10110 is the limit block; 10111 is the angle sensor; 10112 is the spring bump; 10113 is the micro-motion groove; 10114 is the guiding sliding groove; 10115 is the micro-switch; 10116 is the switch contact; 10117 is the trigger rod; 10118 is the return spring; 10119 is the limit groove; 10120 is the bump groove; 102 is the driving assembly; 10201 is the manual-electric switching module; 10202 is the speed changer; 10203 is the driving motor; 10204 is the manual runner; 10205 is the hand-electric conversion wrench. Detailed implementation manners

[0032] The following further describes the present application in detail with reference to the accompanying drawings.

[0033] Embodiment:

[0034] As shown in Figure 1 to Figure 5 shown:

[0035] The utility model provides a limit structure for an electric driving device of a partial rotation valve, which comprises a rotary valve assembly 101. A driving assembly 102 is arranged at the top of the rotary valve assembly 101. By arranging the driving assembly 102 at the top of the rotary valve assembly 101, it is convenient for the driving assembly 102 to control the opening or closing of the rotary valve assembly 101. The rotary valve assembly 101 comprises a valve cavity 10101. Sealing sleeves 10102 are arranged at both the top and the bottom of the valve cavity 10101. A ball valve 10106 is arranged inside the valve cavity 10101. Sealing parts 10107 are arranged at both the top and the bottom of the ball valve 10106. The sealing parts 10107 are rotatably connected with the sealing sleeves 10102. By rotatably connecting the sealing parts 10107 with the sealing sleeves 10102, it is convenient for the ball valve 10106 to rotate inside the valve cavity 10101, and it can play a sealing role to avoid the leakage of the flowing medium. A valve bottom cover 10103 is fixedly installed at the bottom end of the sealing sleeve 10102 at the bottom of the valve cavity 10101. A limit block 10110 is fixedly installed at the bottom end of the sealing part 10107 at the bottom of the ball valve 10106. A limit groove 10119 is formed at the top of the valve bottom cover 10103. The limit block 10110 is in a butterfly shape, and the limit block 10110 is arranged inside the limit groove 10119. By the limit block 10110 being in a butterfly shape and the limit block 10110 being arranged inside the limit groove 10119, it is convenient for the limit block 10110 to limit the rotation of the ball valve 10106, avoid excessive rotation of the ball valve 10106 during use, enable the ball valve 10106 to stably stop at the fully open position or the fully closed position, and is beneficial to improving the service life and stability. An angle sensor 10111 is fixedly installed at the bottom of the limit block 10110. By fixedly installing the angle sensor 10111 at the bottom of the limit block 10110, it is convenient to monitor the rotation angle of the ball valve 10106, so as to conveniently output an electric signal to indicate the position of the ball valve 10106.

[0036] Wherein, a convex block groove 10120 is formed on the inner side surface of the limit groove 10119. Guide sliding grooves 10114 are formed at both ends of the limit block 10110. A spring convex block 10112 is slidably connected inside the guide sliding grooves 10114. By forming the guide sliding grooves 10114 at both ends of the limit block 10110 and slidably connecting the spring convex block 10112 inside the guide sliding grooves 10114, it is convenient for the spring convex block 10112 to be engaged with the convex block groove 10120 when the ball valve 10106 is in the fully open or fully closed state.

[0037] Wherein, one end of the spring convex block 10112 is in a spherical structure, and a return spring 10118 is fixedly installed at the other end of the spring convex block 10112. The other end of the return spring 10118 is fixedly connected with the guide sliding groove 10114. By fixedly connecting the other end of the return spring 10118 with the guide sliding groove 10114, it is convenient for the return spring 10118 to provide elastic force to push the spring convex block 10112 outwards.

[0038] Among them, a micro-motion groove 10113 is provided in the middle of the inner side of the limit block 10110, and a micro-switch 10115 is fixedly installed inside the micro-motion groove 10113. By providing the micro-motion groove 10113 in the middle of the inner side of the limit block 10110 and fixedly installing the micro-switch 10115 inside the micro-motion groove 10113, it is convenient to fixedly install the micro-switch 10115 inside the limit block 10110.

[0039] Among them, switch contacts 10116 are provided at both ends of the micro-switch 10115, a trigger rod 10117 is inserted inside the return spring 10118, one end of the trigger rod 10117 is fixedly connected to the spring bump 10112, and the other end of the trigger rod 10117 faces the switch contact 10116. By fixedly connecting one end of the trigger rod 10117 to the spring bump 10112 and the other end of the trigger rod 10117 facing the switch contact 10116, it is convenient for the trigger rod 10117 to keep pressing the switch contact 10116 when the ball valve 10106 is in a non-full-open and non-full-closed state. When the ball valve 10106 enters the full-open or full-closed state, the spring bump 10112 pops out, causing the trigger rod 10117 to disengage from pressing the switch contact 10116, thereby generating an electrical signal to control the driving component 102 to stop power output and avoiding the occurrence of excessive rotation.

[0040] Among them, communication pipes 10104 are provided at both ends of the valve cavity 10101, and a communication flange 10105 is fixedly installed at one end of the communication pipe 10104. By providing the communication pipes 10104 at both ends of the valve cavity 10101 and fixedly installing the communication flange 10105 at one end of the communication pipe 10104, it is convenient to connect the device to an external pipeline and facilitate the device to control the flow and closing of the pipeline.

[0041] Among them, a connecting shaft 10108 is fixedly installed at the top of the sealing part 10107 of the ball valve 10106, and a positioning groove 10109 is provided on one side of the top of the connecting shaft 10108. By fixedly installing the connecting shaft 10108 at the top of the sealing part 10107 of the ball valve 10106 and providing the positioning groove 10109 on one side of the top of the connecting shaft 10108, it is convenient for the driving component 102 to drive the ball valve 10106 to rotate.

[0042] Among them, the driving component 102 includes a manual-electric switching module 10201, a speed changer 10202 is provided on the top of the manual-electric switching module 10201, and a driving motor 10203 is provided on one side of the speed changer 10202. By providing the speed changer 10202 on the top of the manual-electric switching module 10201 and the driving motor 10203 on one side of the speed changer 10202, it is convenient for the speed changer 10202 to adjust the output speed of the driving motor 10203, thereby increasing the torque and facilitating more stable control of the rotation of the ball valve 10106.

[0043] Among them, a manual rotating wheel 10204 is provided on one side of the manual-electric switching module 10201, and a hand-electric conversion wrench 10205 is provided on the other side of the manual-electric switching module 10201. By having the manual rotating wheel 10204 on one side of the manual-electric switching module 10201 and the hand-electric conversion wrench 10205 on the other side of the manual-electric switching module 10201, it is convenient for the hand-electric conversion wrench 10205 to control the switching between manually rotating the ball valve 10106 and electrically rotating the ball valve 10106, and the manual rotating wheel 10204 facilitates rotating the ball valve 10106 manually when manually rotating the ball valve 10106.

[0044] Specifically, communication pipes 10104 are provided at both ends of the valve cavity 10101, and a communication flange 10105 is fixedly installed at one end of the communication pipe 10104, which is convenient for connecting the device to an external pipeline and facilitating the device to control the flow and closing of the pipeline. On one side of the manual-electric switching module 10201, there is a manual rotating wheel 10204, and on the other side of the manual-electric switching module 10201, there is a hand-electric conversion wrench 10205, which is convenient for the hand-electric conversion wrench 10205 to control the switching between manually rotating the ball valve 10106 and electrically rotating the ball valve 10106. The manual rotating wheel 10204 is convenient for rotating the ball valve 10106 manually. On the top of the manual-electric switching module 10201, there is a speed changer 10202, and on one side of the speed changer 10202, there is a driving motor 10203, which is convenient for the speed changer 10202 to adjust the output speed of the driving motor 10203, thereby increasing the torque and facilitating more stable control of the rotation of the ball valve 10106. The sealing part 10107 is rotatably connected to the sealing sleeve 10102, which is convenient for the ball valve 10106 to rotate inside the valve cavity 10101 and can play a sealing role to prevent the leakage of the flowing medium. The limiting block 10110 is in a butterfly shape and is arranged inside the limiting groove 10119, which is convenient for the limiting block 10110 to limit the rotation of the ball valve 10106 and prevent the ball valve 10106 from rotating excessively during use, so that the ball valve 10106 can stably stop at the fully open position or the fully closed position, which is beneficial to improving the service life and stability. At the bottom of the limiting block 10110, an angle sensor 10111 is fixedly installed, which is convenient for monitoring the rotation angle of the ball valve 10106, thereby facilitating the output of an electric signal to indicate the position of the ball valve 10106. On both ends of the limiting block 10110, guiding sliding grooves 10114 are provided, and a spring convex block 10112 is slidably connected inside the guiding sliding grooves 10114, which is convenient for the spring convex block 10112 to engage with the convex block groove 10120 when the ball valve 10106 is in the fully open or fully closed state. The other end of the return spring 10118 is fixedly connected to the guiding sliding groove 10114, which is convenient for the return spring 10118 to provide elastic force to push the spring convex block 10112 outwards. In the middle of the inner side of the limiting block 10110, a micro motion groove 10113 is provided, and a micro switch 10115 is fixedly installed inside the micro motion groove 10113, which is convenient for fixedly installing the micro switch 10115 inside the limiting block 10110. One end of the trigger rod 10117 is fixedly connected to the spring convex block 10112, and the other end of the trigger rod 10117 faces the switch contact 10116, which is convenient for the trigger rod 10117 to keep pressing the switch contact 10116 when the ball valve 10106 is in a non-fully open and non-fully closed state. When the ball valve 10106 enters the fully open or fully closed state, the spring convex block 10112 pops out, causing the trigger rod 10117 to disengage from pressing the switch contact 10116, thereby generating an electric signal to control the driving component 102 to stop power output and avoid the occurrence of excessive rotation phenomenon.

[0045] This specific embodiment is only an interpretation of the present application and does not limit the present application. After reading this specification, those skilled in the art can make modifications to this embodiment that do not contribute creatively as needed, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A limiting structure for an electric drive device for a part-rotary valve, characterized in that: The invention comprises a rotary valve assembly (101), wherein a driving assembly (102) is provided at the top of the rotary valve assembly (101), wherein the rotary valve assembly (101) comprises a valve chamber (10101), wherein sealing sleeves (10102) are provided at the top and bottom of the valve chamber (10101), wherein a ball valve (10106) is provided inside the valve chamber (10101), wherein sealing parts (10107) are provided at the top and bottom of the ball valve (10106), wherein the sealing parts (10107) are rotatably connected to the sealing sleeve (10102), wherein the valve chamber (10101) is provided with a sealing member (10107) and wherein the sealing member (10107) is rotatably connected to the sealing sleeve (10102). A valve bottom cover (10103) is fixedly installed at the bottom end of the sealing sleeve (10102) at the bottom of the ball valve (10106), a limiting block (10110) is fixedly installed at the bottom end of the sealing portion (10107) at the bottom of the ball valve (10106), a limiting groove (10119) is provided at the top of the valve bottom cover (10103), the limiting block (10110) is in a butterfly-shaped structure, and the limiting block (10110) is arranged inside the limiting groove (10119), and an angle sensor (10111) is fixedly installed at the bottom of the limiting block (10110).

2. A limiting structure for an electric drive device for a part-turn valve according to claim 1, characterized in that: A convex block groove (10120) is provided on the inner side of the limiting groove (10119), and guide sliding grooves (10114) are provided at both ends of the limiting block (10110), and a spring convex block (10112) is slidably connected inside the guide sliding groove (10114).

3. A limiting structure for a part-rotary valve electric drive device according to claim 2, characterized in that: One end of the spring protrusion (10112) is in a spherical structure, and a return spring (10118) is fixedly installed on the other end of the spring protrusion (10112), and the other end of the return spring (10118) is fixedly connected to the guide slide groove (10114).

4. A limiting structure for an electric drive device for a part-rotary valve according to claim 3, characterized in that: A micro-motion groove (10113) is provided in the middle of the inner side of the limit block (10110), and a micro-motion switch (10115) is fixedly installed inside the micro-motion groove (10113).

5. The limiting structure of the electric drive device for a part-turn valve according to claim 4, characterized in that: Switch contacts (10116) are provided at both ends of the micro switch (10115), a trigger rod (10117) is inserted into the interior of the reset spring (10118), one end of the trigger rod (10117) is fixedly connected to the spring protrusion (10112), and the other end of the trigger rod (10117) faces the switch contact (10116).

6. The limiting structure of the electric drive device for a part-rotary valve according to claim 1, characterized in that: Connecting pipes (10104) are provided at both ends of the valve cavity (10101), and a connecting flange (10105) is fixedly installed at one end of the connecting pipe (10104).

7. The position limiting structure of the electric drive device for a part-turn valve according to claim 1, characterized in that: A connecting shaft (10108) is fixedly mounted on the top of the top sealing portion (10107) of the ball valve (10106), and a positioning groove (10109) is provided on one side of the top of the connecting shaft (10108).

8. The position limiting structure of the electric drive device for a part-turn valve according to claim 7, characterized in that: The drive assembly (102) comprises a manual electric switching module (10201), a speed changer (10202) is provided on the top of the manual electric switching module (10201), and a drive motor (10203) is provided on one side of the speed changer (10202).

9. The position limiting structure of the electric drive device for a part-turn valve according to claim 8, characterized in that: A manual rotating wheel (10204) is provided on one side of the manual electric switching module (10201), and a flashlight conversion wrench (10205) is provided on the other side of the manual electric switching module (10201).

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