Cover opening and closing device and liquid medicine supply equipment

Abstract

The utility model relates to a cover opening and closing device and liquid medicine supply equipment. The cover opening and closing device comprises a fixed seat; the driving mechanism is arranged on the fixed seat; one end of the swing arm is connected to the driving end of the driving mechanism, and the other end of the swing arm is used for being connected with a feeding cover; the driving mechanism is used for driving the swing arm to move in the preset direction so as to drive the feeding cover to move to the closing position where the feeding port is closed or the opening position where the feeding port is opened. The driving mechanism is further used for driving the swing arm to swing so as to drive the feeding cover to swing between the opening position and the avoiding position. When the swing arm drives the feeding cover to swing to the avoiding position, the feeding cover and the feeding opening are arranged in a staggered mode in the preset direction.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor equipment, in particular to a switch cover device and liquid medicine supply equipment. Background Art

[0002] The semiconductor industry requires a lot of chemical solutions, most of which are strong acids, strong bases or highly corrosive solutions. For safety and production needs, liquid supply equipment is often used to transport or mix the liquid medicine before transporting it. The liquid supply equipment includes a premixing tank, which has a raw material addition port, and various raw materials of the liquid medicine are added to the premixing tank through the raw material addition port. In order to prevent the liquid medicine from overflowing from the raw material addition port when mixing various raw materials, it is necessary to cover the raw material addition port with a raw material addition cover. However, traditional feeding equipment requires manual opening or closing of the raw material addition cover, which poses a safety hazard and greatly reduces the degree of automation of the liquid supply equipment. Utility Model Content

[0003] Based on this, it is necessary to provide a switch cover device and liquid medicine supply equipment to improve the above defects, in view of the fact that the raw material addition cover of the feeding equipment in the prior art needs to be opened or closed manually, which poses a safety hazard and greatly reduces the degree of automation of the liquid supply equipment.

[0004] A cover switch device is used to drive a charging cover to close or open a charging port on a tank body, and the cover switch device comprises:

[0005] Fixed seat;

[0006] A driving mechanism is disposed on the fixing seat; and

[0007] A swing arm, one end of which is connected to the driving end of the driving mechanism, and the other end of which is used to be connected to the feeding cover;

[0008] Wherein, the driving mechanism is used to drive the swing arm to move along a preset direction, so as to drive the feeding cover to move to a closed position to close the feeding port or to an open position to open the feeding port;

[0009] The driving mechanism is also used to drive the swing arm to swing, so as to drive the feeding cover to swing between the open position and the avoidance position; when the swing arm drives the feeding cover to swing to the avoidance position, the feeding cover and the feeding port are staggered in the preset direction.

[0010] In one embodiment, the driving mechanism includes a mobile driving assembly and a mobile seat, the mobile driving assembly is mounted on the fixed seat, the mobile seat is mounted on the driving end of the mobile driving assembly, and the swing arm is arranged on the mobile seat;

[0011] The moving drive assembly can drive the moving seat to move along the preset direction, so that the moving seat drives the feeding cover to move between the closing position and the opening position through the swing arm.

[0012] In one embodiment, the driving mechanism further comprises a rotating shaft and a transmission assembly, wherein the rotating shaft is rotatably connected to the movable seat, an end of the swing arm away from the feeding cover is fixedly connected to the rotating shaft, and the transmission assembly is mounted on the fixed seat and is transmission-connected to the rotating shaft;

[0013] When the charging cover follows the moving seat to reach the open position, the transmission assembly can convert the linear motion of the moving seat along the preset direction into the rotational motion of the rotating shaft, so that the swing arm drives the charging cover to swing between the open position and the avoidance position.

[0014] In one embodiment, the transmission assembly includes a connecting arm, a cam follower and a cam plate, one end of the connecting arm is fixedly connected to the rotating shaft, and the other end of the connecting arm is installed with the cam follower; the cam plate is installed on the fixing seat and has a track groove extending longitudinally along the preset direction, the cam follower is limited in the track groove and can move along the track groove;

[0015] When the moving seat drives the feeding cover to move to the closed position, the cam follower is located at the first end of the track groove; when the moving seat drives the feeding cover to move to the open position, the cam follower is located at the second end of the track groove.

[0016] In one embodiment, the cam plate also includes an avoidance groove connected to the second end of the track groove, and the avoidance groove extends longitudinally along the width direction of the track groove so that the cam follower can enter or exit the avoidance groove from the second end of the track groove under the drive of the moving seat.

[0017] In one embodiment, one end of the rotating shaft is fixedly connected to the swing arm, and the other end of the rotating shaft is fixedly connected to the connecting arm.

[0018] In one of the embodiments, the driving mechanism further includes at least two bearing seats fixedly connected to the movable seat, and the rotating shaft is mounted on each of the bearing seats via a bearing.

[0019] In one embodiment, the driving mechanism also includes a rotating shaft and a rotating drive assembly, the rotating shaft is rotatably connected to the movable seat, the end of the swing arm facing away from the feeding cover is fixedly connected to the rotating shaft, and the rotating drive assembly is installed on the movable seat and is drivingly connected to the rotating shaft so that the rotating drive assembly can drive the rotating shaft to rotate.

[0020] In one embodiment, the switch cover device further comprises a fixing frame, the fixing frame is used to be fixedly connected to the tank body, the fixing seat is installed on the fixing frame, and the position of the fixing seat relative to the fixing frame is adjustable.

[0021] A liquid medicine supply device comprises the switch cover device as described in any of the above embodiments, the tank body and the feeding cover.

[0022] In the actual use of the above-mentioned switch cover device and liquid medicine supply equipment, when it is necessary to add raw materials into the tank body from the feeding port, first, the driving mechanism drives the swing arm to move gradually away from the tank body along the preset direction until the feeding cover is driven to move from the closed position to the open position along the preset direction, so that the feeding cover is separated from the feeding port of the tank body; then, the driving mechanism drives the swing arm to swing, so that the feeding cover follows the swing arm to swing from the open position to the avoidance position, so that the feeding cover and the feeding port of the tank body are misaligned in the preset direction, so as to avoid the feeding cover from interfering with the operation of adding raw materials into the tank body from the feeding port. At this time, raw materials can be added into the tank body from the feeding port.

[0023] After the raw materials are added, first, the driving mechanism drives the swing arm to swing (the swing direction is opposite to the swing direction when opening the cover), so that the charging cover follows the swing arm to swing from the avoidance position to the open position. At this time, the charging cover and the charging port on the tank body are opposite to each other in the preset direction and are separated by a certain distance; then, the driving mechanism drives the swing arm to gradually move closer to the tank body in the preset direction until the swing arm drives the charging cover to move from the open position to the closed position, so that the charging cover is closed at the charging port of the tank body, that is, the charging port is closed.

[0024] In this way, the opening and closing cover device of the present application drives the swing arm to move and swing, thereby driving the feeding cover to close or open the feeding port on the tank body, and avoiding the feeding cover from interfering with the operation of adding raw materials into the tank body through the feeding port, thereby reducing the labor intensity of the operator, eliminating safety hazards in production, and greatly improving the degree of automation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a switch cover device in one embodiment of the utility model;

[0026] Figure 2 for Figure 1The schematic diagram of the structure when the switch cover device drives the charging cover to the closed position;

[0027] Figure 3 for Figure 1 The schematic diagram of the structure when the switch cover device drives the charging cover to the avoidance position is shown. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0034] See also Figures 1 to 3 , an embodiment of the utility model provides a liquid medicine supply device, including a tank body 100, a charging cover 200 and a switch cover device 300. The tank body 100 is provided with a charging port 101, and various raw materials are added to the tank body 100 from the charging port 101 according to a certain ratio for mixing, so as to obtain the required liquid medicine. The switch cover device 300 is connected to the charging cover 200, and is used to drive the charging cover 200 to close or open the charging port 101. In this way, when it is necessary to add raw materials, the switch cover device 300 drives the charging cover 200 to open the charging port 101 on the tank body 100. At this time, the raw materials can be added to the tank body 100 from the charging port 101. After the raw materials are added, the switch cover device 300 drives the charging cover 200 to close the charging port 101 on the tank body 100, so as to prevent the liquid medicine in the tank body 100 from overflowing from the charging port 101.

[0035] In the embodiment of the present application, the switch cover device 300 includes a fixing seat 10, a driving mechanism 20 and a swing arm 30. The driving mechanism 20 is disposed on the fixing seat 10, one end of the swing arm 30 is connected to the driving end of the driving mechanism 20, and the other end of the swing arm 30 is connected to the charging cover 200, so that the charging cover 200 can move with the swing arm 30. The driving mechanism 20 is used to drive the swing arm 30 to move along a preset direction X, so as to drive the charging cover 200 to move along the preset direction X to a closed position (i.e., Figure 1101 ) or the open position. When the charging cover 200 moves to the closed position, the charging cover 200 covers the charging port 101 of the tank body 100 to close the charging port 101. When the charging cover 200 moves to the open position, the charging cover 200 separates from the tank body 100, thereby opening the charging port 101 on the tank body 100. At this time, although the charging cover 200 has been separated from the tank body 100, the charging cover 200 and the charging port 101 are opposite to each other in the preset direction X, occupying the operating space for adding raw materials from the charging port 101 to the tank body 100, resulting in a narrow space that is inconvenient for adding raw materials.

[0036] Furthermore, the driving mechanism 20 is also used to drive the swing arm 30 to swing, so as to drive the charging cover 200 to move between the open position and the avoidance position (i.e. Figure 1 When the swing arm 30 drives the charging cover 200 to swing to the avoidance position, the charging cover 200 and the charging port 101 are staggered in the preset direction X.

[0037] In actual use of the above-mentioned opening and closing cover device 300, when it is necessary to add raw materials into the tank body 100 from the feeding port 101, first, the driving mechanism 20 drives the swing arm 30 to gradually move away from the tank body 100 along the preset direction X, until the feeding cover 200 is driven to move from the closed position to the open position along the preset direction X, so that the feeding cover 200 is separated from the feeding port 101 of the tank body 100; then, the driving mechanism 20 drives the swing arm 30 to swing, so that the feeding cover 200 follows the swing arm 30 to swing from the open position to the avoidance position, so that the feeding cover 200 and the feeding port 101 of the tank body 100 are misaligned in the preset direction X, so as to avoid the feeding cover 200 from interfering with the operation of adding raw materials into the tank body 100 from the feeding port 101. At this time, raw materials can be added into the tank body 100 from the feeding port 101.

[0038] After the raw materials are added, first, the driving mechanism 20 drives the swing arm 30 to swing (the swing direction is opposite to the swing direction when opening the cover), so that the charging cover 200 follows the swing arm 30 and swings from the avoidance position to the open position. At this time, the charging cover 200 and the charging port 101 on the tank body 100 are opposite to each other in the preset direction X and are separated by a certain distance; then, the driving mechanism 20 drives the swing arm 30 to gradually move closer to the tank body 100 along the preset direction X, until the swing arm 30 drives the charging cover 200 to move from the open position to the closed position, so that the charging cover 200 covers the charging port 101 of the tank body 100, that is, the charging port 101 is closed.

[0039] In this way, the switch cover device 300 of the present application drives the swing arm 30 to move and swing, thereby driving the feeding cover 200 to close or open the feeding port 101 on the tank body 100, and avoids the feeding cover 200 interfering with the operation of adding raw materials into the tank body 100 from the feeding port 101, thereby reducing the labor intensity of the operator, eliminating safety hazards in production, and greatly improving the degree of automation of the equipment.

[0040] It should be noted that when the charging cover 200 swings to the avoidance position, the charging cover 200 and the charging port 101 on the tank body 100 are arranged in a staggered manner in the preset direction X. Here, "the charging cover 200 and the charging port 101 are arranged in a staggered manner in the preset direction X" means that in the preset direction X, the charging cover 200 and the charging port 101 are partially or completely staggered, as long as it is convenient to add raw materials into the tank body 100 through the charging port 101, and no limitation is made here.

[0041] Specifically in the embodiment, the switch cover device 300 also includes a fixing frame 40, which is used to be fixedly connected to the tank body 100. The fixing seat 10 is installed on the fixing frame 40, and the position of the fixing seat 10 relative to the fixing frame 40 is adjustable, so that the switch cover device 300 can accurately drive the charging cover 200 to close or open the charging port 101 on the tank body 100. It should be noted that the position adjustment of the fixing seat 10 relative to the fixing frame 40 can adopt relatively mature existing technologies, such as a position adjustment structure using bolts and waist-shaped holes, as long as the position of the fixing seat 10 relative to the fixing frame 40 can be adjusted, and no limitation is made here.

[0042] In an embodiment of the present application, the driving mechanism 20 includes a mobile driving component 21 and a mobile seat 22. The mobile driving component 21 is installed on the fixed seat 10, and the mobile seat 22 is installed at the driving end of the mobile driving component 21. The swing arm 30 is arranged on the mobile seat 22, so that the swing arm 30 can move with the mobile seat 22. The mobile driving component 21 can drive the mobile seat 22 to move along a preset direction X, so that the mobile seat 22 drives the feeding cover 200 to move between a closed position and an open position through the swing arm 30. It should be noted that the mobile driving component 21 can adopt a linear driving module, as long as it can drive the mobile seat 22 to move along the preset direction X, and it is not limited here.

[0043] In some embodiments, the driving mechanism 20 further includes a rotating shaft 23 and a transmission assembly 24. The rotating shaft 23 is rotatably connected to the moving seat 22, and one end of the swing arm 30 away from the feeding cover 200 is fixedly connected to the rotating shaft 23, so that the swing arm 30 and the feeding cover 200 can move together with the rotating shaft 23. The transmission assembly 24 is installed on the fixed seat 10 and is connected to the rotating shaft 23. When the feeding cover 200 follows the moving seat 22 to reach the open position, the transmission assembly 24 can convert the linear motion of the moving seat 22 along the preset direction X into the rotational motion of the rotating shaft 23, so that the swing arm 30 drives the feeding cover 200 to swing between the open position and the avoidance position. In this way, before the feeding cover 200 reaches the open position, the transmission assembly 24 does not intervene in the transmission of power, so that the mobile drive assembly 21 drives the feeding cover 200 to move between the closed position and the open position. When the loading cover 200 reaches the open position, the moving drive assembly 21 continues to drive the moving seat 22 to move along the preset direction X, and the transmission assembly 24 begins to intervene in the power transmission, converting the linear motion of the moving seat 22 along the preset direction X into the rotational motion of the rotating shaft 23, so that the rotating shaft 23 drives the swing arm 30 to swing, and then the swing arm 30 drives the loading cover 200 to swing between the open position and the avoidance position.

[0044] It should be noted that the use of a mobile drive assembly 21 as a power source to achieve the linear movement of the loading cover 200 between the closed position and the open position and the swinging movement between the open position and the avoidance position reduces the number of power sources. On the one hand, it simplifies the structure of the device and reduces the required space; on the other hand, it greatly reduces the cost of the device.

[0045] Further, the transmission assembly 24 includes a connecting arm 241, a cam follower 242 and a cam plate 243. One end of the connecting arm 241 is fixedly connected to the rotating shaft 23, and the other end of the connecting arm 241 is installed with the cam follower 242. The cam plate 243 is installed on the fixed seat 10, and has a track groove 2431 extending longitudinally along the preset direction X. The cam follower 242 is limited in the track groove 2431 and can move along the track groove 2431. When the movable seat 22 drives the charging cover 200 to move to the closed position through the rotating shaft 23 and the swing arm 30, the cam follower 242 moves along the track groove 2431 to the first end a1 of the track groove 2431, thereby limiting the rotating shaft 23, the swing arm 30 and the charging cover 200 from continuing to approach the tank body 100 along the preset direction X. When the movable seat 22 drives the charging cover 200 to move to the open position through the rotating shaft 23 and the swing arm 30, the cam follower 242 moves along the track groove 2431 to the second end a2 of the track groove 2431, thereby limiting the rotating shaft 23, the swing arm 30 and the charging cover 200 from continuing to follow the movable seat 22 to move away from the tank body 100 along the preset direction X. At this time, when the movable seat 22 continues to move away from the tank body 100 along the preset direction X, since the cam follower 242 has reached the second end a2 of the track groove 2431, the track groove 2431 limits the cam follower 242 from continuing to follow the movable seat 22 and the rotating shaft 23 to move along the preset direction X, so that while the rotating shaft 23 continues to move along the preset direction X with the movable seat 22, the cam follower 242 drives the rotating shaft 23 to rotate through the connecting arm 241, and then the rotating shaft 23 drives the charging cover 200 to swing from the open position to the avoidance position through the swing arm 30. It should be noted that the cam follower 242 may be a bearing or a roller, and of course, other components that can roll along the track groove 2431 may also be used, which is not limited here.

[0046] Furthermore, the cam plate 243 also includes an avoidance groove 2432 connected to the second end a2 of the track groove 2431, and the avoidance groove 2432 extends longitudinally along the width direction of the track groove 2431, so that the cam follower 242 can enter or exit the avoidance groove 2432 from the second end a2 of the track groove 2431 under the drive of the moving seat 22, so that when the cam follower 242 reaches the second end a2 of the track groove 2431, it can generate a displacement along the width direction of the track groove 2431, thereby providing a rotation space for the rotating shaft 23 to move along the preset direction X while following the moving seat 22.

[0047] In this way, when it is necessary to drive the charging cover 200 to move from the closed position to the open position, under the driving action of the moving driving assembly 21, the moving seat 22 moves away from the charging port 101 of the tank body 100 along the preset direction X. At this time, since the cam follower 242 is located at the first end a1 of the track groove 2431 and can follow the rotating shaft 23 to move toward the second end a2 of the track groove 2431, the cam follower 242 will not drive the rotating shaft 23 to rotate, so that the rotating shaft 23, the swing arm 30 and the charging cover 200 follow the moving seat 22 and move gradually away from the charging port 101 of the tank body 100 along the preset direction X until the charging cover 200 reaches the open position (at this time, the charging cover 200 is separated from the charging port 101 of the tank body 100).

[0048] When it is necessary to drive the feeding cover 200 to swing from the open position to the avoidance position, under the driving action of the moving driving assembly 21, the moving seat 22 moves away from the feeding port 101 of the tank body 100 along the preset direction X, and the rotating shaft 23 moves along the preset direction X with the moving seat 22. At the same time, since the cam follower 242 reaches the second end a2 of the track groove 2431 at this time, it cannot move along the preset direction X with the rotating shaft 23, so that the cam follower 242 drives the rotating shaft 23 to rotate through the connecting arm 241, and then the rotating shaft 23 drives the feeding cover 200 to swing from the open position to the avoidance position through the swing arm 30. In the process of the cam follower 242 driving the rotating shaft 23 to rotate, the rotating shaft 23 drives the cam follower 242 to move in the width direction of the track groove 2431 through the connecting arm 241 and enters the avoidance groove 2432, so that the rotating shaft 23 can rotate more smoothly.

[0049] When it is necessary to drive the feeding cover 200 to swing from the avoidance position to the open position, under the driving action of the mobile driving assembly 21, the moving seat 22 moves along the preset direction X close to the feeding port 101 of the tank body 100. At the same time, since the cam follower 242 is located in the avoidance groove 2432 at this time, it cannot move along the preset direction X with the rotating shaft 23, so that the cam follower 242 drives the rotating shaft 23 to rotate through the connecting arm 241, and then the rotating shaft 23 drives the feeding cover 200 to swing from the avoidance position to the open position through the swing arm 30. In the process of the cam follower 242 driving the rotating shaft 23 to rotate, the rotating shaft 23 drives the cam follower 242 to generate displacement in the width direction of the track groove 2431 through the connecting arm 241, and enters the second end a2 of the track groove 2431 from the avoidance groove 2432, so that the rotating shaft 23 can rotate more smoothly.

[0050] When it is necessary to drive the charging cover 200 to move from the open position to the closed position, under the driving action of the moving driving assembly 21, the moving seat 22 moves along the preset direction X close to the charging port 101 of the tank body 100. At this time, since the cam follower 242 is located at the second end a2 of the track groove 2431 and can follow the rotating shaft 23 to move toward the first end a1 of the track groove 2431, the cam follower 242 will not drive the rotating shaft 23 to rotate, so that the rotating shaft 23, the swing arm 30 and the charging cover 200 follow the moving seat 22 to move gradually close to the charging port 101 of the tank body 100 along the preset direction X until the charging cover 200 covers the charging port 101 of the tank body 100 (at this time, the charging cover 200 reaches the closed position).

[0051] Optionally, the driving mechanism 20 further includes at least two bearing seats 25 each fixedly connected to the moving seat 22. The rotating shaft 23 is mounted on each bearing seat 25 through a bearing, thereby realizing the assembly of the rotating shaft 23, and the rotating shaft 23 can rotate around its own axis relative to the moving seat 22. In this way, the rotating shaft 23, the swing arm 30 and the feeding cover 200 are supported by two bearing seats 25, making the structure more stable.

[0052] Optionally, one end of the rotating shaft 23 is fixedly connected to the swing arm 30, and the other end of the rotating shaft 23 is fixedly connected to the connecting arm 241. On the one hand, this greatly facilitates the assembly of the swing arm 30 and the connecting arm 241; on the other hand, it ensures that components such as the swing arm 30 and the feeding cover 200 do not interfere with components such as the connecting arm 241, the cam follower 242 and the cam plate 243 as much as possible.

[0053] Optionally, the driving mechanism 20 further includes a first detection member 211 and a second detection member 212, both of which are communicatively connected to the mobile driving assembly 21. The first detection member 211 and the second detection member 212 are arranged along a preset direction X and are relatively fixedly arranged with respect to the fixed seat 10. The first detection member 211 is used to detect a first extreme position of the mobile seat 22 moving close to the tank body 100 along the preset direction X, and the second detection member 212 is used to detect a second extreme position of the mobile seat 22 moving away from the tank body 100 along the preset direction X.

[0054] When the first detection member 211 detects the moving seat 22, it indicates that the moving seat 22 has driven the feeding cover 200 to move to the closed position. At this time, the first detection member 211 sends a first arrival signal, and the mobile driving assembly 21 stops driving the moving seat 22 to continue moving along the preset direction X according to the first arrival signal.

[0055] When the second detection member 212 detects the moving seat 22, it indicates that the moving seat 22 has driven the feeding cover 200 to move to the avoidance position. At this time, the second detection member 212 sends a second arrival signal, and the mobile drive component 21 stops driving the moving seat 22 to continue to move along the preset direction X according to the second arrival signal. It should be noted that the first detection member 211 and the second detection member 212 can be contact position sensors or non-contact position sensors, which are not limited here.

[0056] It is understandable that the first detection member 211 and the second detection member 212 can be installed on the fixing base 10 or on the mobile driving assembly 21 , as long as they are fixed relative to the fixing base 10 , and no limitation is made herein.

[0057] It should be noted that the method of converting the linear motion into the swinging motion by the transmission assembly 24 is not limited to the method of realizing the swinging of the charging cover 200 between the open position and the avoidance position. In other embodiments, the charging cover 200 can also be realized by directly driving the charging cover 200 by the rotary drive assembly. In other words, two power sources are configured, one power source is the mobile drive assembly 21 that outputs the linear motion, and the other power source is the rotary drive assembly that outputs the rotational motion. Specifically, the rotating shaft 23 is rotatably connected to the moving seat 22, and the end of the swing arm 30 that is away from the charging cover 200 is fixedly connected to the rotating shaft 23. The rotary drive assembly is installed on the moving seat 22 and is drivingly connected to the rotating shaft 23 so that the rotary drive assembly can drive the rotating shaft 23 to rotate.

[0058] Thus, when it is necessary to drive the charging cover 200 to move between the closed position and the open position, the moving drive assembly 21 drives the moving seat 22 to move along the preset direction X, thereby driving the charging cover 200 to move along the preset direction X until the charging cover 200 moves to the closed position or the open position. At this time, the rotating drive assembly does not drive the rotating shaft 23 to rotate.

[0059] When it is necessary to drive the charging cover 200 to swing between the open position and the avoidance position, the moving drive component 21 stops driving the moving seat 22 to move along the preset direction X, and the rotating drive component drives the rotating shaft 23 to rotate, so that the rotating shaft 23 drives the charging cover 200 to swing through the swing arm 30 until the charging cover 200 swings to the open position or the avoidance position.

[0060] It should be noted that the rotation drive component can be a motor, and of course it can also be other drive components that output rotational motion, as long as it can drive the rotating shaft 23 to rotate, and there is no limitation here.

[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A switch cover device, characterized in that: The cover opening and closing device (300) is used to drive the charging cover (200) to close or open the charging port (101) on the tank body (100), and comprises: Fixed seat (10); A driving mechanism (20) is arranged on the fixing seat (10); and A swing arm (30), one end of the swing arm (30) being connected to the driving end of the driving mechanism (20), and the other end of the swing arm (30) being used to be connected to the feeding cover (200); The driving mechanism (20) is used to drive the swing arm (30) to move along a preset direction (X) so as to drive the feeding cover (200) to move to a closed position for closing the feeding port (101) or to an open position for opening the feeding port (101); The driving mechanism (20) is also used to drive the swing arm (30) to swing, so as to drive the feeding cover (200) to swing between the open position and the avoidance position; when the swing arm (30) drives the feeding cover (200) to swing to the avoidance position, the feeding cover (200) and the feeding port (101) are arranged in a staggered manner in the preset direction (X).

2. The switch cover device according to claim 1, characterized in that: The driving mechanism (20) comprises a mobile driving component (21) and a mobile seat (22), wherein the mobile driving component (21) is mounted on the fixed seat (10), the mobile seat (22) is mounted on the driving end of the mobile driving component (21), and the swing arm (30) is arranged on the mobile seat (22); The moving drive assembly (21) is capable of driving the moving seat (22) to move along the preset direction (X), so that the moving seat (22) drives the feeding cover (200) to move between the closed position and the open position via the swing arm (30).

3. The switch cover device according to claim 2, characterized in that: The driving mechanism (20) further comprises a rotating shaft (23) and a transmission assembly (24); the rotating shaft (23) is rotatably connected to the movable seat (22); one end of the swing arm (30) facing away from the feeding cover (200) is fixedly connected to the rotating shaft (23); the transmission assembly (24) is mounted on the fixed seat (10) and is transmission-connected to the rotating shaft (23); When the charging cover (200) follows the moving seat (22) to reach the open position, the transmission assembly (24) is capable of converting the linear motion of the moving seat (22) along the preset direction (X) into the rotational motion of the rotating shaft (23), so that the swing arm (30) drives the charging cover (200) to swing between the open position and the avoidance position.

4. The switch cover device according to claim 3, characterized in that: The transmission assembly (24) comprises a connecting arm (241), a cam follower (242) and a cam plate (243); one end of the connecting arm (241) is fixedly connected to the rotating shaft (23); the other end of the connecting arm (241) is mounted with the cam follower (242); the cam plate (243) is mounted on the fixing seat (10) and has a track groove (2431) extending longitudinally along the preset direction (X); the cam follower (242) is limited in the track groove (2431) and can move along the track groove (2431); When the movable seat (22) drives the feeding cover (200) to move to the closed position, the cam follower (242) is located at the first end (a1) of the track groove (2431); when the movable seat (22) drives the feeding cover (200) to move to the open position, the cam follower (242) is located at the second end (a2) of the track groove (2431).

5. The switch cover device according to claim 4, characterized in that: The cam plate (243) further comprises an avoidance groove (2432) connected to the second end (a2) of the track groove (2431), wherein the avoidance groove (2432) extends longitudinally along the width direction of the track groove (2431), so that the cam follower (242) driven by the moving seat (22) can enter or exit the avoidance groove (2432) from the second end (a2) of the track groove (2431).

6. The switch cover device according to claim 4, characterized in that: One end of the rotating shaft (23) is fixedly connected to the swing arm (30), and the other end of the rotating shaft (23) is fixedly connected to the connecting arm (241).

7. The switch cover device according to claim 3, characterized in that: The driving mechanism (20) further comprises at least two bearing seats (25) each fixedly connected to the moving seat (22), and the rotating shaft (23) is mounted on each of the bearing seats (25) via a bearing.

8. The switch cover device according to claim 2, characterized in that: The driving mechanism (20) further comprises a rotating shaft (23) and a rotating driving assembly, wherein the rotating shaft (23) is rotatably connected to the movable seat (22), an end of the swing arm (30) which faces away from the feeding cover (200) is fixedly connected to the rotating shaft (23), and the rotating driving assembly is mounted on the movable seat (22) and is drivingly connected to the rotating shaft (23), so that the rotating driving assembly can drive the rotating shaft (23) to rotate.

9. The switch cover device according to claim 1, characterized in that: The switch cover device (300) further comprises a fixing frame (40), wherein the fixing frame (40) is used for being fixedly connected to the tank body (100), the fixing seat (10) is mounted on the fixing frame (40), and the position of the fixing seat (10) relative to the fixing frame (40) is adjustable.

10. A liquid medicine supply device, characterized in that: It comprises the opening and closing cover device (300) according to any one of claims 1 to 9, the tank body (100) and the feeding cover (200).

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