Electric gate valve

Abstract

The utility model discloses an electric gate valve, which relates to the field of valve structures and comprises a transmission component, a gate valve core and an abutting structure, the transmission component is connected to a valve body, and the output end of the transmission component is connected with the gate valve core which is sleeved with a sealing ring and can slide on the inner side of the valve body. A sealing flashboard push rod of the abutting structure is in a long strip shape and is hinged to a flashboard valve element and a transmission component, when the flashboard valve element moves downwards to the lower limit, the sealing flashboard push rod pushes a sealing ring to abut against a sealing valve port to form sealing, the transmission component provides power for the flashboard valve element, and the problem that the state of the valve cannot be automatically and flexibly adjusted is solved. When the sealing gate push rod of the abutting structure opens and closes the gate valve, the abutting force on the gate valve element can be dynamically adjusted only by swinging, so that the frictional resistance during opening and closing is reduced, the overall structure of the gate valve is reduced, the stability of the sealing effect is ensured, and the service life of the gate valve is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of valve structures, specifically to an electric gate valve. Background Technology

[0002] In industrial fluid transport systems, such as vacuum equipment pipelines, pressurized air equipment pipelines, and purification equipment pipelines, square or rectangular cross-section pipes are widely used due to their advantages such as flexible spatial layout and adaptability to irregular structures. Compared with traditional circular pipes, valve sealing technology for square / rectangular pipes faces significant challenges: due to the presence of sharp corners and asymmetrical stress surfaces in square / rectangular structures, achieving uniform and efficient sealing is more difficult and prone to local leakage or sealing failure.

[0003] Currently, most electric gate valves used in square / rectangular pipelines employ a sloping block force transmission sealing structure. This structure achieves the sealing gate's fit with the valve port through mechanical compression between the sloping surfaces. However, this force transmission method has several technical drawbacks: First, the sliding process of the sloping surfaces generates significant frictional resistance, leading to increased drive energy consumption and delayed gate movement response. Second, the sloping structure requires a large installation space, making it difficult to adapt to the needs of compact and integrated equipment layouts. Third, the sealing stroke depends on a fixed sloping angle and mechanical dimensions, lacking a flexible adjustment mechanism and failing to meet the dynamic control requirements of sealing pressure under different operating conditions. Utility Model Content

[0004] The purpose of this utility model is to provide an electric gate valve, which connects the valve body and the gate valve core through a transmission component, providing power to the gate valve core so that it can slide inside the valve body. This solves the problem that the gate valve core cannot move automatically and flexibly to adjust the valve state. At the same time, the long strip-shaped sealing gate push rod in the abutment structure is hinged to the gate valve core and the transmission component respectively. When opening and closing the gate valve, only the sealing gate push rod needs to be swung to adjust the abutment force on the gate valve core, realizing the dynamic adjustment of the sealing pressure when opening and closing the gate valve. This reduces the frictional resistance when opening and closing the gate valve, reduces the overall structure of the gate valve, ensures the stability of the sealing effect, and improves the service life of the gate valve.

[0005] This utility model is achieved through the following technical solution:

[0006] An electric gate valve, comprising:

[0007] A transmission component, which is connected to the valve body;

[0008] A gate valve core, wherein a sealing ring is fitted around the outer periphery of the gate valve core, the gate valve core is slidably connected to the inner side of the valve body, and the output end of the transmission component is connected to the gate valve core;

[0009] The abutting structure includes a sealing gate push rod, which is generally elongated and hinged to the gate valve core and the transmission component. When the gate valve core moves down to the lower limit state, the sealing gate push rod pushes the sealing ring on the outer periphery of the gate valve core against the sealing valve port to form a sealing structure.

[0010] In this design, the transmission component connects to the valve body, providing power for the movement of the gate valve core and enabling it to slide up and down within the valve body. A sealing ring fitted around the gate valve core, in conjunction with this sliding motion, seals the valve when closed, ensuring its tightness. The slidable connection design allows for flexible movement to adjust the valve's position. The sealing gate push rod in the abutment structure is elongated and hinged to both the gate valve core and the transmission component. When the gate valve core moves to its lower limit, it pushes the sealing ring against the sealing valve port, forming a seal. Opening and closing the gate valve only requires swinging the sealing gate push rod to adjust the abutment force on the gate valve core, reducing frictional resistance during valve opening and closing, preventing severe wear on the abutment structure and gate valve core after prolonged use, ensuring sealing performance, and extending the gate valve's service life.

[0011] In some embodiments, in order to provide stable and controllable power to the gate valve core so that it can move up and down within the valve body as required, thereby completing the opening and closing actions of the valve, the transmission component includes an electric gate valve motor, a ball screw nut, and a movable slide plate. The movable slide plate is slidably connected to the inside of the valve body, the ball screw nut is fixedly connected to the top of the movable slide plate, the electric gate valve motor is fixedly connected to the top of the valve body, and the free end of the output shaft of the electric gate valve motor is connected to a ball screw, which is screwed into the ball screw nut.

[0012] In some embodiments, sliders are provided on both sides of the movable slide, and guide rails are provided on both sides of the inner cavity of the valve body. The guide rails are vertically arranged on the valve body, and the sliders are slidably connected to the guide rails. This effectively restricts the movement trajectory of the movable slide, allowing it to slide only vertically along the guide rails, avoiding swaying or deviation, and ensuring the stability and accuracy of the movable slide's movement. This, in turn, ensures the smoothness of the gate valve core connected to it during its up-and-down movement.

[0013] In some embodiments, the movable slide plate is generally rectangular in shape, and a support rod is provided in the middle of the inner cavity of the movable slide plate. The sealing gate push rod can swing along the space between the support rod and the gate valve core. When the valve is closed, when the gate valve core moves down to the designated position, the sealing gate push rod can swing smoothly and push the sealing ring on the outer periphery of the gate valve core to tightly abut against the sealing valve port, forming a good sealing effect. When the valve is opened, it can swing back in time, release the abutment force on the gate valve core, reduce frictional resistance, and ensure smooth movement of the gate valve core, thereby realizing efficient and stable opening and closing operation of the valve.

[0014] In some embodiments, the two ends of the sealing gate push rod are hinged to one side of the support rod and the gate valve core, respectively. Utilizing the movable characteristics of the hinge points, the direction of force can be effectively buffered and adjusted, ensuring that the sealing ring on the outer periphery of the gate valve core precisely and tightly abuts against the sealing valve port, forming a reliable sealing structure. When the valve is opened, the sealing gate push rod can swing flexibly, easily releasing the resistance to the gate valve core, greatly reducing the frictional resistance when opening and closing the gate valve. Simultaneously, this hinged design can accommodate potential errors in the production and installation of the gate valve core, ensuring stable operation of the gate valve core under various conditions, and improving the valve's sealing effect and service life.

[0015] In some embodiments, to ensure that the sealing gate push rod has a clear and stable plane of motion during the swinging process and to avoid swaying or deviation, the abutment structure further includes a first sealing gate hinge shaft and a second sealing gate hinge shaft. The first sealing gate hinge shaft is horizontally disposed on the support rod, and the second sealing gate hinge shaft is horizontally disposed on the gate valve core. The two ends of the sealing gate push rod are respectively hinged to the first sealing gate hinge shaft and the second sealing gate hinge shaft.

[0016] In some embodiments, in order to adapt the gate valve core to square or rectangular pipes so as to better cover the sealing valve port, achieve efficient sealing, and reduce the risk of leakage, the gate valve core is generally rectangular plate-shaped.

[0017] In some embodiments, to prevent excessive downward movement of the gate valve core from damaging itself, the sealing valve port, and other components, and to ensure the safety of all valve components, a limiting translation roller is provided on the valve body. The limiting translation roller includes at least two rollers connected to the bottom of the valve body cavity. When the gate valve core moves to its lower limit, the top of the limiting translation roller contacts the bottom of the gate valve core, and the gate valve core abuts against the sealing valve port. The sealing valve port is located on the side of the limiting translation roller away from the gate valve core. Furthermore, the limiting translation roller can also roll and unload force during contact, effectively reducing wear on the bottom of the gate valve core and extending its service life.

[0018] In some embodiments, microswitches are provided on both the limiting translation roller and the moving slide, and the top and bottom of the gate valve core can respectively contact the corresponding microswitches.

[0019] In some embodiments, an electric control box is also included, which is connected to the top of the valve body. The electric control box contains a control terminal, which is electrically connected to the electric gate valve motor and a micro switch.

[0020] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0021] 1. This utility model uses a transmission component to drive the gate valve core to move up and down along the inner side of the valve body, and provides abutment structures that are hinged to the gate valve core and the transmission component respectively. When the transmission component moves the gate valve core to the bottom of the valve body, the abutment structure applies force to the gate valve core, pressing the gate valve core against the sealing valve port. Since the abutment structure is hinged to the transmission component and the gate valve core, the abutment force on the gate valve core can be adjusted by swinging the abutment structure when opening and closing the gate valve, thereby reducing the frictional resistance when opening and closing the gate valve, preventing severe wear of the abutment structure and the gate valve core after long-term use, ensuring the sealing effect, and improving the service life of the gate valve.

[0022] 2. In the abutment structure of this utility model, the sealing gate push rod is long and narrow, which occupies less space in the gate valve compared with the prior art, thus reducing the overall structure of the gate valve;

[0023] 3. In addition, since the gate valve core has a certain thickness error during production and a certain position error during installation, the present invention eliminates the thickness error and installation error of the gate valve core by swinging the long strip-shaped sealing gate push rod, so that the gate valve core can keep in contact with the sealing valve port and ensure the stability of the sealing effect. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a structural diagram of the present invention;

[0026] Figure 2 This is a diagram of the internal structure of the present invention;

[0027] Figure 3 For the present invention Figure 2 Rear view;

[0028] Figure 4 This is a right view of the present invention;

[0029] Figure 5 This is a right view of the present invention;

[0030] Figure 6 This is a longitudinal center sectional view of the present invention;

[0031] Figure 7 This is a transverse center sectional view of the present invention.

[0032] The attached diagram shows the markings and corresponding component names:

[0033] 101-Auxiliary manual rotary wheel, 102-Electric control box, 103-Square gate valve, 104-Sealed valve port, 201-Electric gate valve motor, 202-Electric control aviation plug, 203-Electric downward button, 204-Upward position indicator light, 205-Downward position indicator light, 206-Electric upward button, 301-Ball screw, 302-Ball screw nut, 303-First sealing gate hinge shaft, 304-Sealing gate push rod, 305-Second sealing gate hinge shaft, 306-Limit translation roller, 307-Sealing ring, 308-Gate valve core, 309-Guide rail, 310-Slider, 311-Moving slide plate, 312-Valve body. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0035] Example

[0036] This embodiment provides an electric gate valve, see [link]. Figures 1-7The valve includes a transmission component, a gate valve core 308, and abutment structure. The transmission component is connected to the valve body 312. The gate valve core 308 is slidably connected to the inner side of the valve body 312. The output end of the transmission component is connected to the gate valve core 308. The abutment structure is hinged to the gate valve core 308 and the transmission component respectively, so that the gate valve core 308 abuts against the sealing valve port 104. The gate valve core 308 is driven to move up and down along the inner side of the valve body 312 by the transmission component. Abutment structure is provided to be hinged to the gate valve core 308 and the transmission component respectively. When the transmission component moves the gate valve core 308 to the bottom of the valve body 312, the abutment structure applies force to the gate valve core 308, pressing the gate valve core 308 against the sealing valve port 104. Since the abutment structure is hinged to the transmission component and the gate valve core 308, when opening and closing the gate valve, it is only necessary to swing the abutment structure to release the abutment force on the gate valve core 308, thereby reducing the frictional resistance when opening and closing the gate valve, preventing severe wear of the abutment structure and the gate valve core 308 after long-term use, ensuring the sealing effect, and improving the service life of the gate valve.

[0037] See Figures 1-4 The transmission component includes an electric gate valve motor 201, a ball screw nut 302, and a movable slide plate 311. The movable slide plate 311 is slidably connected to the inner side of the valve body 312. The ball screw nut 302 is fixedly connected to the top of the movable slide plate 311. The electric gate valve motor 201 is fixedly connected to the top of the valve body 312. A ball screw 301 is connected to the free end of the output shaft of the electric gate valve motor 201, and the ball screw 301 is screwed into the ball screw nut 302. By setting the ball screw nut 302 on the top of the movable slide plate 311, the electric gate valve motor 201 is fixedly connected to the top of the valve body 312. The free end of the output shaft of the electric gate valve motor 201 is connected to the ball screw 301, which facilitates the rotation of the ball screw 301 by the electric gate valve motor 201. When the ball screw 301 rotates, it drives the movable slide plate 311 to move up and down.

[0038] See Figures 2-4 The movable slide plate 311 has sliders 310 on both sides, and the valve body 312 has guide rails 309 on both sides of its inner cavity. The guide rails 309 are vertically mounted on the valve body 312, and the sliders 310 are slidably connected to the guide rails 309. By setting the sliders 310 on the movable slide plate 311 to slide in cooperation with the guide rails 309 vertically connected to the inner side of the valve body 312, the sliding trajectory of the movable slide plate 311 is restricted, and the frictional resistance when the movable slide plate 311 moves up and down is reduced.

[0039] See Figure 2 and Figure 7The movable slide plate 311 is generally rectangular in shape. A support rod is provided in the middle of the inner cavity of the movable slide plate 311. The abutment structure is hinged to the support rod and the gate valve core 308 respectively. By providing a support rod in the middle of the inner cavity of the movable slide plate 311 and hinged the abutment structure to the support rod and the gate valve core 308 respectively, the middle of the gate valve core 308 is subjected to force when the gate valve core 308 moves up and down, and when the abutment structure abuts against the gate valve core 308, ensuring the stability of the gate valve core 308 and thus ensuring the stability of the sealing effect.

[0040] See Figure 2 and Figure 6 Because the current inclined structure occupies a large space in the gate valve, resulting in a large overall structure, the abutment structure includes a sealing gate push rod 304. The sealing gate push rod 304 is elongated, with its two ends hinged to the support rod and one side of the gate valve core 308, respectively. By making the sealing gate elongated, the space occupied by the sealing gate push rod 304 within the gate valve is reduced, thus minimizing the overall structure of the gate valve. Furthermore, since the gate valve core 308 has some thickness error during production and installation, the swinging of the elongated sealing gate push rod 304 eliminates the thickness and installation errors of the gate valve core 308, ensuring that the gate valve core 308 remains abutted against the sealing valve port 104, guaranteeing a stable sealing effect.

[0041] See Figure 2 and Figure 6 The abutment structure further includes a first sealing gate hinge 303 and a second sealing gate hinge 305. The first sealing gate hinge 303 is horizontally mounted on the support rod, and the second sealing gate hinge 305 is horizontally mounted on the gate valve core 308. The two ends of the sealing gate push rod 304 are hinged to the first sealing gate hinge 303 and the second sealing gate hinge 305, respectively. By horizontally mounting the first sealing gate hinge 303 and the second sealing gate hinge 305 on the support rod and the gate valve core 308, respectively, the sealing gate push rod 304 can swing along the space between the support rod and the gate valve core 308, achieving abutment against the sealing valve port 104 and sealing the sealing valve port 104. Specifically, at least two abutment structures are provided to improve the abutment effect on the gate valve core 308.

[0042] See Figure 6 Specifically, a mounting bracket is provided on the back of the gate valve core 308, and the second sealing gate hinge 305 is connected to the mounting bracket. The second sealing gate hinge 305 is parallel to the first sealing gate hinge 303.

[0043] See Figures 2 to 6The gate valve core 308 is fitted with a sealing ring 307 on its outer periphery, and the gate valve core 308 is generally rectangular in shape. By providing the sealing ring 307, deformation of the sealing ring 307 achieves a seal on the valve port 104. Specifically, the sealing ring 307 is made of fluororubber, which improves its service life.

[0044] See Figure 2 and Figure 6 The valve body 312 is provided with limiting translation rollers 306, including at least two rollers. These rollers are connected to the bottom of the inner cavity of the valve body 312. When the gate valve core 308 moves downward to its lower limit, the top of the limiting translation roller 306 contacts the bottom of the gate valve core 308, and the gate valve core 308 abuts against the sealing valve port 104. The sealing valve port 104 is located on the side of the limiting translation roller 306 away from the gate valve core 308. By setting the rollers to limit the downward movement distance of the gate valve core 308, and by using the rolling force relief of the rollers, the bottom of the gate valve core 308 is protected.

[0045] See Figure 2 and Figure 6 Both the limiting translation roller 306 and the moving slide plate 311 are equipped with microswitches, and the top and bottom of the gate valve core 308 can respectively contact the corresponding microswitches. By setting microswitches, it is convenient to limit the upper and lower limits of the movement of the gate valve core 308, and thus the motor can be shut off at the upper and lower limits.

[0046] See Figures 2-4 The system also includes an electric control box 102, which is connected to the top of the valve body 312. The electric control box 102 contains a control terminal, which is electrically connected to the electric gate valve motor 201 and a microswitch. By using the control terminal, when the microswitch moves the gate valve core 308 to its upper or lower limit, it sends a signal to the control terminal, which then issues a closing command to the electric gate valve motor 201.

[0047] See Figures 1-2 and Figure 4Specifically, an electric downward button 203, an upward position indicator light 204, a downward position indicator light 205, and an electric upward button 206 are installed on the outside of the electric control box 102 of the square gate valve 103. The upward and downward position indicator lights 204 and 205 are electrically connected to their respective microswitches. When the gate valve core 308 contacts the corresponding microswitch, the corresponding microswitch closes, and the corresponding position indicator light illuminates to remind the operator that the gate valve core 308 is in position. The electric upward button 206 and the electric downward button 203 are both electrically connected to the electric gate valve motor 201. Pressing the electric upward button 206 and the electric downward button 203 drives the motor to rotate forward or reverse, thereby realizing the upward or downward movement of the gate valve core 308.

[0048] See Figure 1 and Figure 7 It is also equipped with a manual auxiliary rotary wheel 101, which is connected to the ball screw 301. When there is no power, the square gate valve 103 is opened and closed by the auxiliary rotary wheel 101.

[0049] See Figure 5 In some embodiments, the electric control box 102 is also connected to an electric control aviation plug 202. The connection method of using the electric control aviation plug 202 can safely, conveniently and aesthetically provide access and output power lines and control lines for the motor and electric control components inside the electric control box 102.

[0050] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An electrically powered gate valve characterized by, The utility model relates to a kind of electrically operated gate valve, including: Transmission member, which is connected to the valve body (312); Gate valve element (308), the outer periphery of the gate valve element (308) is provided with a sealing ring (307), and the gate valve element (308) is slidably connected to the inner side of the valve body (312). The output end of the transmission member is connected to the gate valve element (308); The abutting structure includes a sealing gate push rod (304), which is in the form of a long strip as a whole. The sealing gate push rod (304) is hingedly connected to the gate valve element (308) and the transmission member, respectively. When the gate valve element (308) is moved down to the lower limit state, the sealing gate push rod (304) pushes the sealing ring (307) on the outer periphery of the gate valve element (308) to abut against the sealing valve port (104) to form a sealing structure.

2. An electrically powered gate valve according to claim 1, wherein, The transmission member includes an electrically operated gate valve motor (201), a ball screw nut (302) and a moving plate (311). The moving plate (311) is slidably connected to the inner side of the valve body (312). The ball screw nut (302) is fixedly connected to the top of the moving plate (311). The electrically operated gate valve motor (201) is fixedly connected to the top of the valve body (312). The free end of the output shaft of the electrically operated gate valve motor (201) is connected with a ball screw (301). The ball screw (301) is screwed with the ball screw nut (302).

3. An electrically powered gate valve according to claim 2, wherein, Both sides of the moving plate (311) are provided with sliding blocks (310). Both side walls of the inner cavity of the valve body (312) are provided with guide rails (309). The guide rails (309) are vertically arranged on the valve body (312). The sliding blocks (310) are slidably connected with the guide rails (309).

4. An electrically powered gate valve according to claim 2, wherein, The moving plate (311) is in the form of a long rectangular frame as a whole. A support rod is arranged in the middle of the inner cavity of the moving plate (311). The sealing gate push rod (304) can swing in the space between the support rod and the gate valve element (308).

5. An electrically powered gate valve according to claim 4, wherein, Both ends of the sealing gate push rod (304) are hingedly connected to one side of the support rod and the gate valve element (308), respectively.

6. An electrically powered gate valve according to claim 5, wherein, The abutting structure further includes a first sealing gate hinge shaft (303) and a second sealing gate hinge shaft (305). The first sealing gate hinge shaft (303) is horizontally arranged on the support rod. The second sealing gate hinge shaft (305) is horizontally arranged on the gate valve element (308). Both ends of the sealing gate push rod (304) are hingedly connected to the first sealing gate hinge shaft (303) and the second sealing gate hinge shaft (305), respectively.

7. An electrically powered gate valve according to claim 1, wherein, The gate valve element (308) is in the form of a long rectangular plate as a whole.

8. An electrodynamic damper gate valve according to any one of claims 1-7, characterized in that The valve body (312) is provided with a limit translation roller (306), the limit translation roller (306) includes at least two, the limit translation roller (306) is connected at the bottom of the inner cavity of the valve body (312), when the gate valve core (308) is lowered to the state of the lower limit, the top of the limit translation roller (306) is in contact with the bottom of the gate valve core (308), and the gate valve core (308) abuts against the sealing valve port (104), and the sealing valve port (104) is located on the side of the limit translation roller (306) away from the gate valve core (308).

9. An electrically powered gate valve according to claim 8, wherein, The limit translation roller (306) and the moving drag plate (311) are provided with micro switches, respectively, and the top and bottom of the gate valve core (308) can be in contact with the corresponding micro switches, respectively.

10. An electrically powered gate valve according to claim 9, wherein, Further comprising an electric control box (102), the electric control box (102) is connected at the top of the valve body (312), the electric control box (102) is provided with a control terminal, and the control terminal is electrically connected with the electric gate valve motor (201) and the micro switch.

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