Driving structure and valve device

Abstract

The utility model discloses a driving structure which comprises a guide support, a guide sliding groove is formed in the guide support and comprises a straight groove section and a clamping groove section, the straight groove section is arranged in the length direction of the guide support, and the clamping groove section is arranged on one side of the straight groove section in a communicated mode. The output shaft is rotationally arranged on the fixed support, one end of the first crank is arranged in the guide sliding groove in a sliding mode, the other end of the first crank is hinged to one end of the second crank, the other end of the second crank is connected to one end of the output shaft, and one end of the third crank is connected to the other end of the output shaft; the other end of the third crank is a driving end; and the stroke conversion seat is provided with a lifting part, and the lifting part is used for acting on the first crank. The valve device comprises a door frame, a valve and a driving structure; the valve is movably arranged on the door frame, and the driving structure drives the valve to open or close. The problems that a valve device is large in size, and installation and use are inconvenient due to whole-process linkage are solved.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment, and in particular to a drive structure and a valve device. Background Technology

[0002] The high-voltage compartment of the rotary switchgear needs to coordinate with the isolation action to form a closed and open state. The opening and closing of the existing valves start or stop synchronously with the action of the three-phase poles of the rotary switchgear. This results in a large valve stroke, a large space required for valve design, and a large volume, which is inconvenient for valve installation and use. Utility Model Content

[0003] In order to overcome at least one of the defects described in the prior art, the present invention provides a drive structure and a valve device to solve the problems of inconvenience in installation and use caused by the large size of the valve device and the full linkage.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] A drive structure includes: a guide support, a fixed support, a first crank, a second crank, an output shaft, a third crank, and a stroke conversion seat;

[0006] The guide support is provided with a guide groove, which includes a straight groove section and a slot section. The straight groove section is arranged along the length direction of the guide support, and the slot section is connected to one side of the straight groove section.

[0007] The output shaft is rotatably mounted on the fixed support. One end of the first crank is slidably mounted on the guide groove. The other end of the first crank is hinged to one end of the second crank. The other end of the second crank is connected to one end of the output shaft. One end of the third crank is connected to the other end of the output shaft. The other end of the third crank is the drive end.

[0008] The stroke conversion seat is provided with a lifting part, which is located between one end of the first crank that is slidably connected to the guide groove and the fixed support;

[0009] When one end of the first crank is located within the slot section, the distance between the fixed support and the guide support is at its maximum. When the guide support continues to move towards the fixed support, the first crank drives the second crank to rotate. The second crank drives the third crank to rotate through the output shaft. When the guide support reaches a predetermined position, the lifting part acts on the first crank. One end of the first crank, which is slidably connected to the guide groove, slides from the slot section into the straight groove section and displaces relative to the straight groove section.

[0010] Furthermore, the lifting part includes a sliding groove and a lifting groove. The sliding groove extends along the length direction of the stroke conversion seat and is parallel to the straight groove section. The lifting groove is connected to one side of the sliding groove.

[0011] With the height direction of the guide support as a reference, the straight groove section is located above the sliding groove, the lifting groove extends from the end away from the sliding groove toward the straight groove section, and the slot section extends from the end away from the straight groove section toward the sliding groove.

[0012] It also includes a sliding pin, one end of the first crank being slidably disposed in the straight groove section, the retaining groove section, the sliding groove and the lifting groove via the sliding pin;

[0013] Wherein, the sliding pin is located in the slot section, and when the guide support continues to move toward the fixed support, the sliding pin moves toward the lifting groove in the sliding groove, and the sliding pin is guided into the straight groove section by the lifting groove.

[0014] Furthermore, it also includes a latch, one end of which is connected to the drive end of the third crank.

[0015] A gate device includes a gate frame, a gate, and a drive structure as described in any one of claims;

[0016] The valve is movably mounted on the door frame, and the third crank acts on the valve to drive it to open or close.

[0017] Furthermore, it also includes a transmission structure, which includes a sliding seat assembly and two guide rails disposed on the door frame, the sliding seat assembly including a connecting slide;

[0018] The two guide rails are arranged in parallel, the connecting slide is slidably mounted on one of the guide rails, the third crank is inserted into the connecting slide, and the connecting slide moves relative to the third crank;

[0019] The valve is slidably mounted on the two guide rails, and the connecting slide block acts on the valve to drive the valve to slide on the guide rails.

[0020] Furthermore, the connecting slide is provided with a drive groove, and the length direction of the drive groove forms an angle with the length direction of the guide rail;

[0021] The third crank is inserted into the drive slot.

[0022] Furthermore, the sliding seat assembly also includes at least two sliding seats, and at least one of the sliding seats is slidably disposed on a guide rail, and the valve is slidably disposed on the guide rail via the sliding seats.

[0023] Furthermore, it also includes connectors.

[0024] One end of the connector is rotatably connected to the connecting slide, and the other end is slidably connected to the door. The middle part of the connector is rotatably mounted on the door frame.

[0025] Furthermore, the valve is provided with a travel groove, the length direction of which forms an angle with the length direction of the guide rail;

[0026] One end of the connector is rotatably connected to the connecting slide, and the other end is slidably connected to the stroke groove.

[0027] Furthermore, one end of the connector that is slidably connected to the travel groove is provided with an adjustable part, and the position of the connector that is slidably connected to the travel groove can be adjusted by means of an external fastener in the adjustable part.

[0028] Furthermore, the adjustable part includes a plurality of fixing holes arranged along the length direction of the connector.

[0029] In summary, the drive structure and valve device provided by this utility model have the following technical effects:

[0030] One end of the first crank has two states: in the slotted section and in the straight slot section. When one end of the first crank is in the slotted section, the guide support drives the valve to open via the first crank, the second crank, the output shaft, and the third crank. After the valve opens, one end of the first crank moves from the slotted section into the straight slot section. At this time, the guide support moves on its own but no longer drives the valve, thus preventing the valve from having extra travel after opening. This reduces the required operating space of the valve, and the overall size of the valve device is correspondingly reduced. Therefore, a smaller valve device is easier to install and use. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of one embodiment of the driving structure of this utility model;

[0032] Figure 2 This is a second schematic diagram of the driving structure according to an embodiment of the present utility model;

[0033] Figure 3 This is a schematic diagram of one embodiment of the valve device of this utility model;

[0034] Figure 4 This is a second schematic diagram of the valve device according to an embodiment of the present utility model;

[0035] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0036] Figure 6 This is a schematic diagram of the open state of the valve device according to an embodiment of the present utility model;

[0037] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0038] Figure 8 This is a schematic diagram of the closed state of the valve device according to an embodiment of the present utility model;

[0039] Figure 9 for Figure 8 A magnified view of point C in the middle.

[0040] The meanings of the reference numerals in the attached figures are as follows:

[0041] 10. Guide support; 11. Guide slide; 111. Straight groove section; 112. Slot section; 12. Forming conversion seat; 121. Lifting part; 1211. Sliding groove; 1212. Lifting groove; 13. Door frame; 14. Door; 141. Stroke groove; 15. Pin; 16. Hinge hole; 17. Sliding pin; 20. Fixed support; 21. Locking part; 211. Baffle; 30. First crank; 40. Second crank; 50. Output shaft; 60. Third crank; 70. Transmission structure; 71. Sliding seat assembly; 701. Connecting slide; 702. Sliding slide; 711. Drive groove; 72. Guide rail; 80. Connector; 90. Fixing hole. Detailed Implementation

[0042] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0043] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0045] The drive structure of this application can be used for the linkage opening and closing of various doors or windows. The drive mechanism has the effect of reducing the overall volume of the door or window, making it more suitable for installation scenarios in small spaces.

[0046] See Figure 1 and Figure 2 This utility model discloses a drive mechanism, including a guide support 10, a fixed support 20, a first crank 30, a second crank 40, an output shaft 50, a third crank 60, and a stroke conversion seat 12. The guide support 10 is provided with a guide groove 11, which includes a straight groove section 111 and a slot section 112. The straight groove section 111 is arranged along the length direction of the guide support 10, and the slot section 112 is connected to one side of the straight groove section 111. The output shaft 50 is rotatably mounted on the fixed support 20. One end of the first crank 30 is slidably mounted in the guide groove 11, and the other end of the first crank 30 is hinged to one end of the second crank 40. The other end of the second crank 40 is connected to one end of the output shaft 50, and one end of the third crank 60 is connected to the other end of the output shaft. The other end of the crank 60 is the drive end; the stroke conversion seat 12 is provided with a lifting part 121, which is located between the first crank 30 slidably connected to one end of the guide groove 11 and the fixed support 20; when one end of the first crank 30 is set to be in the slot section 112, the fixed support 20 is at its maximum distance from the guide support 10. When the guide support 10 continues to move towards the fixed support 20, the first crank 30 drives the second crank 40 to rotate, and the second crank 40 drives the third crank 60 to rotate through the output shaft. When the guide support 10 reaches the predetermined position, the lifting part 121 acts on the first crank 30, and the end of the first crank 30 slidably connected to the guide groove 11 slides from the slot section 112 into the straight groove section 111 and displaces relative to the straight groove section 111.

[0047] The guide support 10 is typically a sheet metal structure. Preferably, the guide support 10 of this application is an L-shaped structure, with the guide groove 11 disposed on one side plate of the L-shaped structure, and the other side plate used for connection with external transmission components; the fixed support 20 of this embodiment is disposed on one side of the guide groove 11.

[0048] Specifically, the straight groove section 111 extends along the length of the side plate, and the slot section 112 is located at one end of the straight groove section 111, extending towards the right-angle connection between the two side plates. In particular, in order for one end of the first crank 30 to switch smoothly between the straight groove section 111 and the slot section 112, the included angle between the straight groove section 111 and the slot section 112 should be less than 90°, and the connection point between the two can be rounded.

[0049] For example, the fixed support 20 is a U-shaped support. The output shaft 50 can be a cylindrical shaft, which passes through both ends of the opening of the U-shaped fixed support 20. In this way, the fixed support 20 provides two-point support for the output shaft 50, ensuring the stability of the rotation of the output shaft 50. In addition, the fixed support 20 has a U-shaped sheet metal structure, which has the characteristic of being lightweight.

[0050] One end of the first crank 30 may be provided with a roller and a slide bar, which are rolled in the guide groove 11.

[0051] The second crank 40 has one end hinged to the other end of the first crank 30, and the other end connected to one end of the output shaft 50.

[0052] One end of the third crank 60 is fixedly connected to the end of the output shaft 50 away from the second crank 40.

[0053] In this embodiment, the first crank 30 and the stroke conversion seat 12 are respectively located on the inner and outer sides of the side plate where the guide groove 11 of the L-shaped guide support 10 is located. For example, the stroke conversion seat 12 can also be configured as an L-shaped sheet metal structure with reference to the guide support 10.

[0054] In actual use, in the initial state, one end of the first crank 30 is located in the slot section 112, and the other end extends towards the fixed support 20. Taking the height direction of the guide support 10 as a reference, the movement of the guide support 10 is now divided into two stages.

[0055] See Figure 1 In the first stage, the guide support 10 moves linearly towards the fixed support 20, and the slot section 112 abuts against one end of the first crank 30. The rotation of the first crank 30 drives the second crank 40 to rotate. The key point is that when the guide support 10 moves to the predetermined position, the first crank 30, the second crank 40 and the third crank 60 rotate by a predetermined angle. At this time, the lifting part 121 acts on the first crank 30, and the height of the first crank 30 at one end of the slot section 112 rises and turns into the straight slot section 111.

[0056] See Figure 2 The second stage: As the guide support 10 continues to move towards the fixed support 20, the end of the first crank 30 located in the slot section 112 is forced to move from the slot section 112 into the straight groove section 111. Thus, the first crank 30 will not obstruct the continued movement of the guide support 10. This can be understood as the end of the first crank 30 located in the guide groove 11 no longer experiencing absolute displacement, but rather relative displacement within the straight groove section 111 as the guide support 10 continues to move. This stage is completed when the guide support 10 stops moving.

[0057] Conversely, during the transition from the second stage to the first stage, the guide support 10 moves away from the fixed support 20 to reset. During this process, one end of the first crank 30 located in the guide groove 11 gradually approaches the slot section 112. When the guide support 10 returns to the predetermined position, the lifting part 121 releases its effect on the first crank 30. The end of the first crank 30 located in the guide groove 11 falls back and re-enters the slot section 112. The guide support 10 returns to its initial position, and the first crank 30, the second crank 40, the output shaft 50, and the third crank 60 rotate in opposite directions and return to their initial state.

[0058] Based on the above, in addition to the linkage between the guide support 10, the first crank 30 and the second crank 40, other kinematic relationships include: the second crank 40 will drive the output shaft 50 to rotate on the fixed support 20 during the rotation process in the first stage, which in turn will drive the third crank 60 to rotate.

[0059] If the driving structure described above is used to drive a rotating structure, such as a rotating door with a rotary switch, the driving end of the third crank 60 acts on the door shaft of the rotating door, and under the linkage of the external force source, pushes the guide support 10 to move. In the first stage, the entire driving structure drives the rotating door to open to the designated position. In the second stage, the driving structure only follows the movement of the external force source and no longer drives the rotating door to move until the external force source reaches the final position.

[0060] Optionally, the lifting section 121 includes a sliding groove 1211 and a lifting groove 1212. The sliding groove 1211 extends along the length of the stroke conversion seat 12 and is parallel to the straight groove section 111. The lifting groove 1212 is connected to one side of the sliding groove 1211. With the height direction of the guide support 10 as a reference, the straight groove section 111 is located above the sliding groove 1211. The end of the lifting groove 1212 away from the sliding groove 1211 extends towards the straight groove section 111, and the slot section 112 is away from the straight groove. One end of section 111 extends toward sliding groove 1211; it also includes a sliding pin 17, one end of the first crank 30 is slidably disposed in straight groove section 111, slot section 112, sliding groove 1211 and lifting groove 1212 via sliding pin 17; wherein, when sliding pin 17 is located in slot section 112, and when guide support 10 continues to move toward the direction close to fixed support 20, sliding pin 17 moves in sliding groove 1211 toward lifting groove 1212, and sliding pin 17 is guided into straight groove section 111 from lifting groove 1212.

[0061] Specifically, for ease of description, the direction in which the guide support 10 moves toward the fixed support 20 is considered positive, and the opposite direction is considered negative. In this embodiment, both the slot section 112 and the lifting groove 1212 are positively extended. Specifically, the slot section 112 extends forward and downward from the front end of the straight groove section 111, while the lifting groove 1212 extends forward and upward. In particular, the lower end of the slot section 112 is not higher than the lower side of the sliding groove 1211, and the upper end of the lifting groove 1212 is not lower than the upper side of the straight groove section 111.

[0062] In the initial state, the sliding pin 17 passes through the slot section 112 and the sliding groove 1211. The sliding pin 17 is located at the end of the sliding groove 1211 away from the lifting groove 1212 (the sliding groove 1211 provides the sliding pin 17 with a limit to prevent the sliding pin 17 from swinging during sliding). As the guide support 10 moves forward, the sliding pin 17 finally abuts against the front side wall of the lifting groove 1212. The sliding pin 17 moves upward along the lifting groove 1212 and abuts against the top wall of the straight groove section 111. Thus, the sliding pin 17 enters the straight groove section 111. At this time, the guide support 10 continues to move forward and no longer drives the sliding pin 17. Conversely, when the guide support 10 moves in the opposite direction, and the slot section 112 reconnects to the area below the sliding pin 17, the sliding pin 17 re-enters the slot section 112, and then returns to its original position, which will not be described in detail here.

[0063] Alternatively, the lifting part 121 can be a combination of a lifting mechanism and sensors. The lifting mechanism may be a rack and pinion, a telescopic cylinder, etc. Sensors are respectively provided on the lifting mechanism and in the slot section 112. The lifting mechanism is located on one side of the movement path of the guide support 10. The guide support 10 moves forward from the initial state. When the guide support 10 moves to the predetermined position, the sensors on the guide support 10 and the lifting mechanism sense each other, and the lifting mechanism lifts the sliding pin 17 from the bottom of the sliding pin 17 upward from the slot section 112 into the straight... Slot 111; Of course, in order to better facilitate the sliding pin 17 from the slot section 112 into the straight slot section 111, this embodiment can choose to set an inclined baffle on the lifting mechanism. The inclined direction of the baffle is referenced to the direction of the lifting slot 1212. The baffle plays a supporting and guiding role for the sliding pin 17 to enter the straight slot section 111 from the slot section 112; Conversely, when the guide support 10 moves in the opposite direction and returns to the predetermined position, the sensors sense each other again. At this time, the lifting mechanism retracts and the sliding pin 17 falls back into the slot section 112.

[0064] Optionally, a baffle 211 is provided on the fixed support 20. The baffle 211 has a notch, which forms a locking part 21. The locking part 21 is located within the rotation radius of the second crank 40. When the aforementioned guide support 10 moves closer to the fixed support 20, the second crank 60 rotates toward the locking opening 21, and vice versa.

[0065] The notch forms a surrounding structure, allowing the second crank 40 to rotate and engage with it, thus preventing the second crank 40 from wobbling. Additionally, the baffle 211 can be used to secure the support 20. If the second crank 40 requires a larger rotation angle, the notch can be increased in depth to allow for clearance of the second crank 40.

[0066] Optional, combined Figure 5 It also includes a pin 15, one end of which is connected to the drive end of the third crank 60.

[0067] Among them, the pin 15 can be used to directly plug into the component to be driven, and its connection method is simple and quick.

[0068] This embodiment mainly applies the above-mentioned drive structure to the door device of electrical equipment. It is known that the door of electrical equipment is usually a sliding door with a linear switch.

[0069] In summary, please refer to Figures 3 to 9 A valve device includes a door frame 13, a valve 14, and the aforementioned drive structure; the valve 14 is movably disposed on the door frame 13, and a third crank 60 acts on the valve 14 to drive the valve 14 to open or close.

[0070] As can be seen from the foregoing, the third crank 60 is provided with a pin 15, and the third crank 60 is connected to the valve 14 by the pin.

[0071] Optionally, it also includes a transmission structure 70, which includes a slide assembly 71 and two guide rails 72. The slide assembly 71 includes a connecting slide 701.

[0072] Two guide rails 72 are arranged in parallel, and a connecting slide 701 is slidably mounted on one of the guide rails 72. A third crank 60 is inserted into the connecting slide 701, and the connecting slide 701 moves relative to the third crank 60.

[0073] The valve 14 is slidably mounted on two guide rails 72. The connecting slide block 701 acts on the valve 14 to drive the valve 14 to slide on the guide rails 72.

[0074] Optionally, the connecting slide 701 is provided with a drive groove 711, the length direction of the drive groove 711 is set at an angle to the length direction of the guide rail 72.

[0075] The third crank 60 is inserted into the drive slot 711.

[0076] The guide rail 72 is located on the side of the fixed support 20 where the pin 15 is located, and the guide rail 72 is arranged parallel to the straight groove section 111. The number of connecting slides 701 is preferably one, which is located on one of the guide rails 72 near the fixed support 20; as described above, the third crank 60 is inserted into the drive groove 711 through the pin 15.

[0077] The key point is that the connecting slide 701 is provided with a drive groove 711. It should be explained that the drive groove 711 is an elongated groove, and the length of the drive groove 711 is related to the stroke length of the valve 14 that needs to be opened or closed. It can be designed according to actual needs and is not limited here. In this embodiment, the drive groove 711 is preferably perpendicular to the guide rail 72 in space.

[0078] As mentioned above, the third crank 60 rotates with the output shaft 50. Therefore, when the pin 15 rotates with the third crank 60, it acts on the side wall of the drive groove 711 to push the connecting slide 701 to move on the guide rail 72. It should be noted that the pin 15 also simultaneously displaces along the length of the drive groove 711. Therefore, this process converts rotation into linear motion, resulting in a more compact structure and saving space. In addition, when the connecting slide 701 slides on the guide rail 72, it naturally drives the valve 14 to move.

[0079] In this embodiment, the door 14 is connected to the connecting slide 701 via the connector 80. The drive structure moves repeatedly in the first and second stages, thereby causing the latch 15 to swing back and forth. Therefore, the door 14 can repeatedly open and close. The structure of this embodiment is relatively simplified.

[0080] Optionally, the sliding seat assembly 71 further includes at least two sliding seats 702, and at least one sliding seat 702 is slidably disposed on a guide rail 72, and the valve 14 is slidably disposed on the guide rail 72 via the sliding seat 702.

[0081] One possible implementation is that each guide rail 72 is provided with a sliding seat 702, and the valve is slidably mounted on the guide rail 72 via the sliding seat 702; another implementation is that, in order to ensure that the valve 14 slides more smoothly on the guide rail 72, each guide rail 72 in this embodiment is provided with two sliding seats 702.

[0082] Optionally, the valve assembly may also include a connector 80.

[0083] One end of the connector 80 is rotatably connected to the connecting slide 701, and the other end is slidably connected to the door 14. The middle part of the connector 80 is rotatably mounted on the door frame 13.

[0084] One end of the connector 80 is connected to the valve 14. Additionally, the connector 80 has a hinge hole 16 in its middle, through which a hinge shaft passes and is fixed to the door frame 13. Specifically, the connector 80 is a flat rod-shaped structure used to push the valve 14 to slide along the guide rail 72. In this embodiment, the hinge hole 16 is located near the end where the connector 80 connects to the connecting slide 701. Specifically, the distance from the center of the hinge hole 16 to the end where the connector 80 connects to the connecting slide 701 is defined as A, and the distance from the center of the hinge hole 16 to the end where the connector 80 connects to the valve 14 is defined as B. The ratio of A to B is preferably 1:9. The advantage of this ratio is that a small sliding distance of the connecting slide 701 can drive the valve 14 to a large sliding distance, thus improving the overall compactness of the structure.

[0085] Optionally, the valve 14 is provided with a travel groove 141, the length direction of the travel groove 141 is set at an angle to the length direction of the guide rail 72.

[0086] One end of the connector 80 is rotatably connected to the connecting slide 701, and the other end is slidably connected to the stroke groove 141.

[0087] In this embodiment, one end of the connector is inserted into the travel groove 141 via a plug rod. Since the plug rod needs to move within the travel groove 141, the length of the travel groove 141 can be designed according to the displacement of the plug rod, and is not limited here. Importantly, the travel groove 141 is preferably located at the middle position of the valve 14.

[0088] In actual use, combined with Figure 3 , Figure 4 , Figure 6 as well as Figure 8 In the initial state, one end of the first crank 30 is located in the slot section 112, and the other end extends away from the straight slot section 111. The second crank 40 is located below the locking part 21, and the valve 14 is in the closed state.

[0089] In conjunction with the foregoing, during the first stage of the drive structure, the third crank 60 rotates to push the connecting slide 701 to move toward the valve 14 on the guide rail 72. The connecting slide 701 pushes the connecting member 80 to rotate around the hinge rod, thereby causing the insertion rod at one end of the connecting member 80 to move in the stroke groove 141 and act on the side wall of the stroke groove 141, ultimately opening the valve 14. It should be noted that after the drive structure enters the second stage from the first stage, the drive structure is no longer linked to the valve 14, and at this time the valve 14 is stationary in the open state.

[0090] Conversely, during the transition from the second stage to the first stage, when the drive structure moves to the first stage, the connecting slide 701 drives the connecting member 80 to rotate in the opposite direction, and the connecting member 80 pushes the valve 14 to close.

[0091] Optionally, one end of the connector 80 that is slidably connected to the travel groove 141 is provided with an adjustable part, and the connection position between the connector 80 and the adjustable part is adjusted by an external fastener.

[0092] The adjustable part is used to adjust the connection position of the plug rod on the connector 80. Its purpose is to prevent the plug rod and the travel groove 141 from not being able to be installed in the same way after the connector 80 is installed on the door frame 13. Therefore, the adjustable part is used to make the connection point of the plug rod on the connector 80 adjustable, so as to ensure that the plug rod can be inserted into the travel groove.

[0093] Optionally, the adjustable part includes a plurality of fixing holes 90 provided along the length of the connector 80.

[0094] The fixing hole 90 allows for quick insertion and connection of the insertion rod, and convenient adjustment of the rod's position. Additionally, the adjustment section features a slot, within which the insertion rod can move quickly.

[0095] If the aforementioned valve device is applied to a switchgear, the switchgear typically includes a cabinet, and three contact box devices are correspondingly installed within the cabinet. The three-phase terminals are usually rotatably mounted within the cabinet via a crossbeam. According to existing technology, the three contact box devices are typically positioned above the three terminals of the three-phase terminals, and the three-phase terminals rotate to have two states: an isolated position (disconnected from the contact box devices) and a connected position (connected to the contact box devices). The door frame 13 is located within the cabinet and between the three contact box devices and the three-phase terminals.

[0096] Importantly, the crossbeam for mounting the three-phase poles is connected to the guide support 10 in this application via a connecting mechanism (which can be an existing linkage mechanism). The guide support 10 is used to activate the movement of the entire drive structure. This embodiment focuses on the linkage process between the three-phase poles and the valve device. In the initial state, the valve 14 is in the closed state, and the three-phase poles are in the isolated position (disconnected from the contact box device). When the three-phase poles rotate upward, the crossbeam acts as the external force source for the aforementioned drive structure. Specifically, when the three-phase poles begin to rotate outward and upward, the drive structure immediately begins the first stage of movement. At this time, the three-phase poles have not yet rotated to the open position of the valve 14. After the drive structure enters the first stage of movement, the valve 14 has fully reached and stopped and is fully open. The three-phase poles continue to rotate upward and pass through the open position of the valve 14 until they are connected to the contact box device. At this time, the three-phase poles are in the connected position. Conversely, when the three-phase poles rotate downwards, the drive structure is in the second stage of motion, and valve 14 remains stationary. After the three-phase poles rotate until they are entirely below valve 14, the drive structure enters the first stage of motion. After the three-phase poles are fully reset (reaching the isolation position), valve 14 closes its previously open position. It should be noted that the rotation of the three-phase pole beam can be driven by a power source such as an electric motor.

[0097] As described above, the opening and closing of valve 14 is linked to the rotation of the three-phase poles. The valve device utilizes the drive of the three-phase poles, but after valve 14 completes its opening, it also achieves synchronized unlocking with the three-phase poles, avoiding excessive unnecessary travel of valve 14, reducing the space required for valve 14's movement, and achieving a compact switchgear structure. Furthermore, valve 14 enables pre-opening, intermediate idling, and delayed closing, avoiding interference when valve 14 and the three-phase poles open synchronously; simultaneously, valve 14 can be positioned closer to the center of the three-phase poles, reducing installation space.

[0098] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A driving structure, characterized in that, include: Guide support (10), fixed support (20), first crank (30), second crank (40), output shaft (50), third crank (60) and stroke conversion seat (12); The guide support (10) is provided with a guide groove (11), the guide groove (11) includes a straight groove section (111) and a slot section (112), the straight groove section (111) is arranged along the length direction of the guide support (10), and the slot section (112) is connected to one side of the straight groove section (111); The output shaft (50) is rotatably mounted on the fixed support (20). One end of the first crank (30) is slidably mounted on the guide groove (11). The other end of the first crank (30) is hinged to one end of the second crank (40). The other end of the second crank (40) is connected to one end of the output shaft (50). One end of the third crank (60) is connected to the other end of the output shaft. The other end of the third crank (60) is the drive end. The stroke conversion seat (12) is provided with a lifting part (121), which is located between one end of the first crank (30) slidably connected to the guide groove (11) and the fixed support (20); When one end of the first crank (30) is located in the slot section (112), the distance between the fixed support (20) and the guide support (10) is at its maximum. When the guide support (10) continues to move towards the fixed support (20), the first crank (30) drives the second crank (40) to rotate. The second crank (40) drives the third crank (60) to rotate through the output shaft. When the guide support (10) reaches the predetermined position, the lifting part (121) acts on the first crank (30). One end of the first crank (30) slidably connected to the guide groove (11) slides from the slot section (112) into the straight groove section (111) and displaces relative to the straight groove section (111).

2. The driving structure according to claim 1, characterized in that, The lifting part (121) includes a sliding groove (1211) and a lifting groove (1212). The sliding groove (1211) extends along the length direction of the stroke conversion seat (12) and is parallel to the straight groove section (111). The lifting groove (1212) is connected to one side of the sliding groove (1211). With reference to the height direction of the guide support (10), the straight groove section (111) is located above the sliding groove (1211), the lifting groove (1212) extends from the end away from the sliding groove (1211) toward the straight groove section (111), and the slot section (112) extends from the end away from the straight groove section (111) toward the sliding groove (1211). It also includes a sliding pin (17), one end of the first crank (30) is slidably disposed in the straight groove section (111), the slot section (112), the sliding groove (1211) and the lifting groove (1212) via the sliding pin (17); Wherein, the sliding pin (17) is located in the slot section (112), and when the guide support (10) continues to move toward the fixed support (20), the sliding pin (17) moves toward the lifting groove (1212) in the sliding groove (1211), and the sliding pin (17) is guided into the straight groove section (111) by the lifting groove (1212).

3. The driving structure according to claim 1, characterized in that, It also includes a pin (15), one end of which is connected to the drive end of the third crank (60).

4. A valve device, characterized in that, It includes a door frame (13), a door (14), and a drive structure as described in any one of claims 1-3; The valve (14) is movably mounted on the door frame (13), and the third crank (60) acts on the valve (14) to drive the valve (14) to open or close.

5. The valve device according to claim 4, characterized in that, It also includes a transmission structure (70), which includes a sliding seat assembly (71) and two guide rails (72) disposed on the door frame (13). The sliding seat assembly (71) includes a connecting slide (701). The two guide rails (72) are arranged in parallel, the connecting slide (701) is slidably arranged on one of the guide rails (72), the third crank (60) is inserted into the connecting slide (701), and the connecting slide (701) moves relative to the third crank (60). The valve (14) is slidably mounted on the two guide rails (72), and the connecting slide (701) acts on the valve (14) to drive the valve (14) to slide on the guide rails (72).

6. The valve device according to claim 5, characterized in that, The connecting slide (701) is provided with a drive groove (711), and the length direction of the drive groove (711) forms an angle with the length direction of the guide rail (72); The third crank (60) is inserted into the drive slot (711).

7. The valve device according to claim 5, characterized in that, The sliding seat assembly (71) further includes at least two sliding seats (702), and at least one of the sliding seats (702) is slidably disposed on a guide rail (72), and the valve (14) is slidably disposed on the guide rail (72) via the sliding seats (702).

8. The valve device according to any one of claims 5-7, characterized in that, It also includes connectors (80), One end of the connector (80) is rotatably connected to the connecting slide (701), and the other end is slidably connected to the door (14). The middle part of the connector (80) is rotatably mounted on the door frame (13).

9. The valve device according to claim 8, characterized in that, The valve (14) is provided with a travel groove (141), and the length direction of the travel groove (141) forms an angle with the length direction of the guide rail (72); One end of the connector (80) is rotatably connected to the connecting slide (701), and the other end is slidably connected to the travel groove (141).

10. The valve device according to claim 9, characterized in that, An adjustable part is provided at one end of the connector (80) that is slidably connected to the travel groove (141). The position of the connector (80) and the travel groove (141) that are slidably connected can be adjusted by an external fastener in the adjustable part.

11. The valve device according to claim 10, characterized in that, The adjustable part includes a plurality of fixing holes (90) arranged along the length direction of the connector (80).

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