Interlockable manual and electric switching mechanism of valve electric device

Abstract

The utility model relates to the field of valves, in particular to an interlocking valve electric device manual and electric switching mechanism which comprises a valve assembly, a switching assembly is arranged at the top of the valve assembly, the valve assembly comprises a valve rod, a worm wheel is fixedly installed at the top of the valve rod, the switching assembly comprises a gear box, the worm wheel is arranged in the gear box, and the gear box is fixedly connected with the valve rod. A worm is rotationally connected into the gear box and meshed with the worm gear, a sliding hole is formed in the worm, a switching shaft is inserted into the sliding hole in a penetrating mode, a sliding groove is formed in the outer side of the middle of the switching shaft, the sliding groove is in sliding connection with the sliding hole, and a switching button is fixedly installed at one end of the switching shaft. The switching button is arranged on the outer side of the gear box, and the effects that the manual operation mode and the electric operation mode can be conveniently switched, the structure is simple, and the production cost is low are achieved.

Description

Technical Field

[0001] This application relates to the field of valves, and in particular to a manual-electric switching mechanism for an interlocking valve electric actuator. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters (temperature, pressure, and flow rate) of the conveyed medium. Based on their function, they can be divided into shut-off valves, check valves, regulating valves, etc. Interlocking mechanisms ensure that only one operating mode (electric or manual) can be used at a time, avoiding equipment damage or safety hazards caused by performing two operations simultaneously.

[0003] Existing interlocking valve manual / electric switching mechanisms mainly use clutches for manual / electric switching. This method is bulky, complex in structure, costly, and inconvenient to use. Utility Model Content

[0004] In order to solve the problems mentioned in the background art, this application provides an interlockable manual / electric switching mechanism for valve electric actuators.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0006] A manual / electric switching mechanism for an interlocking electric valve actuator includes a valve assembly. A switching component is located on the top of the valve assembly. The valve assembly includes a valve stem, and a worm gear is fixedly mounted on the top of the valve stem. The switching component includes a gearbox, with the worm gear disposed inside the gearbox. A worm is rotatably connected inside the gearbox, meshing with the worm gear. A sliding hole is formed inside the worm, and a switching shaft is inserted through the sliding hole. A sliding groove is formed on the outer side of the middle portion of the switching shaft, and the sliding groove is slidably connected to the sliding hole. A switching button is fixedly mounted on one end of the switching shaft, and the switching button is located on the outside of the gearbox.

[0007] By adopting the above scheme, a switching component is provided on the top of the valve assembly, which facilitates the opening and closing of the valve assembly using electric or manual control. A worm gear is fixedly installed on the top of the valve stem, which facilitates the rotation of the valve stem to control the opening and closing of the valve assembly. The worm and worm gear mesh, which facilitates the rotation of the worm gear to drive the rotation of the worm gear. The sliding groove and sliding hole are slidably connected, which facilitates the limiting of the sliding of the switching shaft and allows the rotation of the switching shaft to drive the rotation of the worm. The switching button is located on the outside of the gear box, which allows the user to control the sliding of the switching shaft by pressing and pulling the switching button, thereby realizing the switching between manual and electric operation modes.

[0008] Furthermore, a synchronization sleeve is fixedly installed at one end of the sliding groove away from the switching button, and a synchronization tooth is fixedly installed at the other end of the sliding groove.

[0009] By adopting the above scheme, the use of a timing sleeve and timing teeth facilitates the switching of the shaft's sliding motion, enabling the switching between manual and electric operation.

[0010] Furthermore, a motor is fixedly installed at the end of the gearbox away from the switching button, and a manual handwheel is rotatably connected to the other end of the gearbox.

[0011] By adopting the above scheme, the motor and manual handwheel facilitate the electric control of the valve assembly to open and close, while the manual handwheel allows users to control the valve assembly manually.

[0012] Furthermore, a synchronizing head is fixedly installed at the output end of the motor, and the synchronizing head is located inside the synchronizing sleeve.

[0013] By adopting the above scheme, the synchronizing head is set inside the synchronizing sleeve, which makes it easy to press the switching button to make the switching shaft slide towards the motor. The synchronizing sleeve is fitted on the outside of the synchronizing head, and the synchronizing teeth are disengaged from the synchronizing groove, thereby facilitating the motor to control the worm gear to rotate and realize the opening and closing of the electric control valve assembly.

[0014] Furthermore, the manual handwheel is sleeved on the outside of the switching shaft, and the manual handwheel has a synchronization groove on the side facing the synchronization gear.

[0015] By adopting the above scheme, the setting of the synchronization groove makes it easy to pull the switching knob to slide the switching shaft toward the manual handwheel, so that the synchronization sleeve is disengaged from the synchronization head, the synchronization gear is engaged in the synchronization groove, and the rotation of the manual handwheel drives the worm gear to rotate, thereby realizing the manual control of the opening and closing of the valve assembly.

[0016] Furthermore, an identification pattern is coated on the outer side of one end of the switching shaft, and the identification pattern is located between the switching button and the synchronization gear.

[0017] By adopting the above scheme and setting the marking pattern, it is easy to observe the position of the switching shaft from the outside of the gear box, which facilitates the completion of the operation mode switching.

[0018] Furthermore, a valve core is fixedly installed at the bottom of the valve stem, a valve body is sleeved on the outside of the valve core, and connecting flanges are fixedly installed at both ends of the valve body.

[0019] By adopting the above scheme and setting the connecting flange, it is easy to connect the device to the external pipeline, and the device can easily control the on / off of the external pipeline.

[0020] Furthermore, the valve body is fixedly connected to the gear box, and the valve body is rotatably connected to the valve core.

[0021] By adopting the above scheme, the valve body is fixedly connected to the gear box, and the valve body is rotatably connected to the valve core, which facilitates the switching component to control the rotation of the valve core, thereby realizing the control of the opening and closing of the device.

[0022] In summary, this application has the following technical effects:

[0023] A switching component is located on the top of the valve assembly, allowing for electric or manual control of the valve's opening and closing. A worm gear is fixedly mounted on the top of the valve stem, allowing the worm gear's rotation to control the valve stem's rotation, thus controlling the valve assembly's opening and closing. The worm and worm gear mesh, allowing the worm's rotation to drive the worm gear's rotation. A sliding groove and sliding hole provide a sliding limit to the switching shaft's movement, and the switching shaft's rotation also drives the worm's rotation. A switching button is located on the outside of the gearbox, allowing the user to control the switching shaft's movement by pressing and pulling the button, thereby switching between manual and electric operation. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the manual / electric switching mechanism of an interlockable valve electric device according to this application;

[0025] Figure 2 This is an exploded view of the manual / electric switching mechanism of an interlockable valve electric device according to this application;

[0026] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the gearbox in this application;

[0027] Figure 4 This is an exploded view of the switching component in this application;

[0028] Figure 5 This is an exploded view of the valve assembly of this application.

[0029] In the diagram, 101 is the switching assembly; 10101 is the gearbox; 10102 is the worm gear; 10103 is the sliding hole; 10104 is the switching shaft; 10105 is the sliding groove; 10106 is the synchronizing sleeve; 10107 is the motor; 10108 is the synchronizing gear; 10109 is the switching knob; 10110 is the manual handwheel; 10111 is the synchronizing groove; 102 is the valve assembly; 10201 is the valve body; 10202 is the connecting flange; 10203 is the valve core; 10204 is the valve stem; and 10205 is the worm gear. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] Example:

[0032] As attached Figure 1 To be continued Figure 5 As shown:

[0033] This utility model provides an interlockable manual / electric switching mechanism for an electric valve actuator, including a valve assembly 102. A switching component 101 is located on the top of the valve assembly 102, facilitating electric or manual control of the opening and closing of the valve assembly 102. The valve assembly 102 includes a valve stem 10204, with a worm gear 10205 fixedly mounted on its top. The rotation of the worm gear 10205 controls the rotation of the valve stem 10204, thereby controlling the opening and closing of the valve assembly 102. The switching component 101 includes a gear box 10101, with the worm gear 10205 disposed inside. A worm 10102 is rotatably connected inside the gear box 10101, meshing with the worm gear 10205. The worm gear 10102 is meshed with the worm wheel 10205 so that its rotation drives the worm wheel 10205. A sliding hole 10103 is provided inside the worm gear 10102, and a switching shaft 10104 is inserted inside the sliding hole 10103. A sliding groove 10105 is provided on the outer side of the middle part of the switching shaft 10104. The sliding groove 10105 is slidably connected to the sliding hole 10103. This slidable connection facilitates the sliding of the switching shaft 10104. The switch has a limit switch and can cause the rotation of the switching shaft 10104 to drive the worm gear 10102 to rotate. A switching button 10109 is fixedly installed at one end of the switching shaft 10104. The switching button 10109 is located on the outside of the gear box 10101. By setting the switching button 10109 on the outside of the gear box 10101, it is convenient for the user to control the sliding of the switching shaft 10104 by pressing and pulling out the switching button 10109, thereby realizing the switching between manual and electric operation modes.

[0034] Among them, a timing sleeve 10106 is fixedly installed at one end of the sliding groove 10105 away from the switching button 10109, and a timing tooth 10108 is fixedly installed at the other end of the sliding groove 10105. The timing sleeve 10106 and the timing tooth 10108 facilitate the switching of the switching shaft 10104 to achieve the switching between manual operation and electric operation.

[0035] The gearbox 10101 has a motor 10107 fixedly installed at one end away from the switch knob 10109, and a manual handwheel 10110 is rotatably connected to the other end of the gearbox 10101. The motor 10107 and the manual handwheel 10110 facilitate the motor 10107 to work and electrically control the opening and closing of the valve assembly 102, while the manual handwheel 10110 allows the user to manually control the opening and closing of the valve assembly 102.

[0036] The output end of the motor 10107 is fixedly equipped with a synchronizing head, which is located inside the synchronizing sleeve 10106. The synchronizing head is located inside the synchronizing sleeve 10106, which facilitates pressing the switching button 10109 to slide the switching shaft 10104 toward the motor 10107. The synchronizing sleeve 10106 is sleeved on the outside of the synchronizing head, and the synchronizing gear 10108 is disengaged from the synchronizing groove 10111, thereby facilitating the operation control of the motor 10107 to drive the worm gear 10102 to rotate, thereby realizing the opening and closing of the electric control valve assembly 102.

[0037] The manual handwheel 10110 is sleeved on the outside of the switching shaft 10104, and the manual handwheel 10110 has a synchronization groove 10111 on the side facing the synchronization gear 10108. The synchronization groove 10111 makes it easy to pull the switching knob 10109 to slide the switching shaft 10104 toward the manual handwheel 10110, so that the synchronization sleeve 10106 is disengaged from the synchronization head, and the synchronization gear 10108 is engaged in the synchronization groove 10111. This facilitates the rotation of the manual handwheel 10110 to drive the worm gear 10102 to rotate, thereby realizing the manual control of the opening and closing of the valve assembly 102.

[0038] The outer side of one end of the switching shaft 10104 is coated with a marking pattern. The marking pattern is set between the switching button 10109 and the synchronous gear 10108. The marking pattern makes it easy to observe the position of the switching shaft 10104 from the outside of the gear box 10101, which helps to ensure the completion of the operation mode switching.

[0039] Among them, the valve core 10203 is fixedly installed at the bottom of the valve stem 10204, and the valve body 10201 is sleeved on the outside of the valve core 10203. The connecting flanges 10202 are fixedly installed at both ends of the valve body 10201. The setting of the connecting flanges 10202 facilitates the connection between the device and the external pipeline, and makes it convenient for the device to control the on / off of the external pipeline.

[0040] The valve body 10201 is fixedly connected to the gear box 10101, and the valve body 10201 is rotatably connected to the valve core 10203. The fixed connection between the valve body 10201 and the gear box 10101, and the rotatable connection between the valve body 10201 and the valve core 10203, facilitates the switching component 101 to control the rotation of the valve core 10203, thereby realizing the control of the opening and closing of the device.

[0041] Specifically, the connection flange 10202 facilitates connection between the device and external pipelines, enabling the device to control the on / off state of the external pipelines. The valve body 10201 is fixedly connected to the gearbox 10101, and the valve body 10201 is rotatably connected to the valve core 10203, allowing the switching assembly 101 to control the rotation of the valve core 10203, thereby controlling the opening and closing of the device. The markings facilitate observation of the position of the switching shaft 10104 from outside the gearbox 10101, ensuring successful operation mode switching. A worm gear 10205 is fixedly mounted on the top of the valve stem 10204, facilitating the movement of the worm gear 10205. The rotation of valve stem 10204 controls the opening and closing of valve assembly 102 by rotating worm gear 10102. Worm gear 10102 meshes with worm wheel 10205, allowing the rotation of worm gear 10102 to drive the rotation of worm wheel 10205. A sliding groove 10105 slidably connects with sliding hole 10103, facilitating the limiting of the sliding of switching shaft 10104 and allowing the rotation of switching shaft 10104 to drive the rotation of worm gear 10102. A switching button 10109 is located on the outside of gear box 10101, allowing the user to control the sliding of switching shaft 10104 by pressing and pulling the switching button 10109. The switching between manual and electric operation is achieved through the synchronous sleeve 10106 and synchronous gear 10108, which facilitates the sliding of the switching shaft 10104 to switch between manual and electric operation. The motor 10107 and manual handwheel 10110 facilitate the electric control of the valve assembly 102 by the motor 10107, while the manual handwheel 10110 allows the user to manually control the valve assembly 102. The synchronous head, located inside the synchronous sleeve 10106, allows the switching knob 10109 to be pressed, causing the switching shaft 10104 to slide towards the motor 10107, thus synchronizing the operation. The sleeve 10106 is fitted on the outside of the synchronizing head, and the synchronizing gear 10108 is disengaged from the synchronizing groove 10111, thereby facilitating the operation of the motor 10107 to drive the worm gear 10102 to rotate, realizing the opening and closing of the electrically controlled valve assembly 102. The synchronizing groove 10111 facilitates the pulling of the switching knob 10109 to slide the switching shaft 10104 toward the manual handwheel 10110, causing the synchronizing sleeve 10106 to disengage from the synchronizing head, and the synchronizing gear 10108 to engage with the synchronizing groove 10111, facilitating the rotation of the manual handwheel 10110 to drive the worm gear 10102 to rotate, thus realizing the opening and closing of the manually controlled valve assembly 102.

[0042] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A manual / electric switching mechanism for an interlockable valve electric actuator, characterized in that, The system includes a valve assembly (102), a switching assembly (101) on top of the valve assembly (102), a valve stem (10204) with a worm gear (10205) fixedly mounted on top of the valve stem (10204), and a gear box (10101) with the worm gear (10205) disposed inside the gear box (10101). A worm (10102) is rotatably connected inside the gear box (10101), and the worm (10102) and the worm gear are connected to each other. (10205) meshing, the worm (10102) has a sliding hole (10103) inside, the sliding hole (10103) has a switching shaft (10104) inserted inside, the middle outer side of the switching shaft (10104) has a sliding groove (10105) on it, the sliding groove (10105) is slidably connected to the sliding hole (10103), and a switching button (10109) is fixedly installed at one end of the switching shaft (10104), the switching button (10109) is located on the outside of the gear box (10101).

2. The manual / electric switching mechanism for an interlockable valve electric actuator according to claim 1, characterized in that, A synchronizing sleeve (10106) is fixedly installed at one end of the sliding groove (10105) away from the switching button (10109), and a synchronizing tooth (10108) is fixedly installed at the other end of the sliding groove (10105).

3. The manual / electric switching mechanism for an interlockable valve electric actuator according to claim 1, characterized in that, A motor (10107) is fixedly installed at one end of the gearbox (10101) away from the switch (10109), and a manual handwheel (10110) is rotatably connected to the other end of the gearbox (10101).

4. The manual / electric switching mechanism for an interlockable valve electric actuator according to claim 3, characterized in that, A synchronizing head is fixedly installed at the output end of the motor (10107), and the synchronizing head is located inside the synchronizing sleeve (10106).

5. The manual / electric switching mechanism for an interlockable valve electric actuator according to claim 3, characterized in that, The manual handwheel (10110) is sleeved on the outside of the switching shaft (10104), and the manual handwheel (10110) has a synchronization groove (10111) on the side facing the synchronization gear (10108).

6. The manual / electric switching mechanism for an interlockable valve electric actuator according to claim 5, characterized in that, The outer side of one end of the switching shaft (10104) is coated with an identification pattern, which is located between the switching button (10109) and the synchronization gear (10108).

7. The manual / electric switching mechanism for an interlockable valve electric actuator according to claim 1, characterized in that, A valve core (10203) is fixedly installed at the bottom of the valve stem (10204), and a valve body (10201) is sleeved on the outside of the valve core (10203). Connecting flanges (10202) are fixedly installed at both ends of the valve body (10201).

8. The manual / electric switching mechanism for an interlockable valve electric actuator according to claim 7, characterized in that, The valve body (10201) is fixedly connected to the gear box (10101), and the valve body (10201) is rotatably connected to the valve core (10203).

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