Switching mechanism
The telescopic element drives the movement of the push block, and the rotation of the rotary disc is controlled by using the convex ribs and ratchet structures, which solves the problem of large space occupancy of the existing switching structure, realizes the miniaturization design and high adaptability of the equipment, and reduces costs.
Patent Information
- Application Number
- CN202420841215.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing switching structures rely on motors and reducers, occupy a large space and poor adaptability, making it difficult to achieve a miniaturized design.
The telescopic element is used to drive the push block to move, and the ratchet is set on the push block. The stator assembly provides the rotary disk to suppress the rotary disk. The rotation angle control of the rotary disk is achieved through the coordination of the convex ribs and ratchets, avoiding the use of the motor and reducer, and realizing the overall Longitudinal arrangement and miniaturized design of the structure.
It greatly reduces the space area, reduces the driving accuracy requirements, improves the adaptability and stability of the equipment, meets the needs of miniaturized design, and reduces costs.
Smart Images
Figure CN222325201U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of continuous ion exchange, in particular to a switching mechanism. Background Art
[0002] Ion exchange technology is a separation method with high selectivity and wide application range. It is used in biological and pharmaceutical engineering, beverages and food, hydrometallurgy, fine chemicals, water treatment, heavy metal wastewater treatment, tailings wastewater treatment, etc. Continuous ion exchange technology is a new separation technology developed based on ion exchange technology. Continuous ion exchange is generally divided into four processes: exchange process, flushing process, analytical process, and regeneration process. Ion exchange is usually carried out in a resin column. Continuous ion exchange usually sets up multiple resin columns, and the connecting holes are switched by a switching mechanism to pass the solutions required for different processes into the resin column, so that multiple resin columns are in different process stages, thereby effectively improving the efficiency of ion exchange.
[0003] The existing switching structure is to set a rotary disk and a valve disk, and the connecting holes on the rotary disk and the valve disk are connected to form a circuit. The rotary disk is driven by the motor and the reducer to rotate, so as to realize the relative rotation between the rotary disk and the valve disk, and then switch different connecting holes to form different circuits, so as to ensure that the resin column connected to the rotary disk is switched in the circuit of different processes. However, because the motor and the reducer need to occupy a large space, the overall equipment cannot be miniaturized, which makes it inapplicable to some fields with miniaturization requirements. Utility Model Content
[0004] The technical problems to be solved by the utility model are:
[0005] The turntable is driven by a motor and a reducer, which occupies a large space and has poor adaptability.
[0006] In order to solve the above technical problems, the utility model provides a switching mechanism having a first direction, the switching mechanism comprising:
[0007] A rotor assembly, the rotor assembly comprising a sleeve, a push block and a rotating disk; a receiving cavity is arranged in the sleeve, and the receiving cavity passes through the two ends of the sleeve along a first direction; a plurality of convex ribs extending along the first direction are arranged on the inner side wall of the sleeve, and deep grooves and shallow grooves are alternately arranged between the plurality of convex ribs in sequence; the push block and the rotating disk are both slidably arranged in the receiving cavity along the first direction; a slider and a ratchet are arranged on the push block; the slider is slidably arranged in the deep groove, and the ratchet is arranged at one end of the push block close to the rotating disk; a limit block and a guide hole are arranged on the rotating disk, the limit block is located in the deep groove or the shallow groove, and the guide hole is arranged at one end of the rotating disk away from the ratchet;
[0008] A stator assembly, the stator assembly is pressed against a side of the rotary disk away from the push block; a connecting hole is provided on the stator assembly, the connecting hole is connected to the guide hole; and
[0009] A telescopic member connected to the push block, wherein the telescopic member drives the push block to move along a first direction;
[0010] Wherein, the pushing block is used to push the rotating disk out from between two adjacent convex ribs along the first direction, and the rotating disk rotates at a certain angle under the action of the ratchet to switch the connecting hole to the connection with each of the guide holes.
[0011] In one embodiment, the ratchet teeth are in a reciprocating wave shape, and the wave crest of the ratchet tooth wave shape is located between two adjacent ribs.
[0012] In one embodiment, the limit block corresponds to the setting position of the ratchet, and a first inclined surface is provided at one end of the limit block close to the ratchet; the first inclined surface is inclined along the rotation direction of the turntable and gradually approaches the push block.
[0013] In one of the embodiments, a second inclined surface is provided at one end of the convex rib close to the turntable; the second inclined surface is inclined along the rotation direction of the turntable in a manner gradually approaching the push block.
[0014] In one of the embodiments, a cushion block is disposed in the shallow groove, and the cushion block is protruded from the inner side wall of the sleeve into the shallow groove, and the cushion block is used to abut and limit the limit block.
[0015] In one of the embodiments, a socket is provided on the push block, and an insertion column is provided on the turntable; the socket is in the shape of a cylindrical groove extending along the first direction, and the insertion column is in the shape of a cylinder and inserted into the socket.
[0016] In one of the embodiments, the stator assembly includes a mounting seat, a valve disc and an elastic member; one end of the valve disc is slidably disposed in the mounting seat, the other end of the valve disc extends toward the rotating disc, the connecting hole is disposed on the valve disc, and the elastic member is elastically supported between the mounting seat and the valve disc to elastically press the valve disc against the rotating disc.
[0017] In one embodiment, a cavity is provided in the mounting seat, and the elastic member is installed in the cavity; a hook block is provided at one end of the mounting seat close to the rotor assembly, and the hook block is in a circular ring shape and protrudes from the inner wall of the mounting seat into the cavity.
[0018] In one embodiment, the valve disc includes a large circular portion and a small circular portion; the large circular portion is slidably disposed in the cavity, the periphery of the large circular portion is in contact with the inner wall of the mounting seat, the small circular portion extends from the large circular portion toward the rotating disc, the connecting hole is disposed on the small circular portion, and the hook block is disposed around the outside of the small circular portion.
[0019] In one embodiment, the guide hole and the connecting hole are both L-shaped.
[0020] Compared with the prior art, the above switching mechanism has the following beneficial effects:
[0021] The push block is driven to move by the telescopic member, and the push block pushes the turntable out from between two adjacent convex ribs. A ratchet is provided on the push block, and the stator assembly provides pressure for the turntable to press against the ratchet. The turntable disengages from the rotation limit of the convex rib and is guided by the ratchet to allow the turntable to rotate at a certain angle until it slides into the gap between the adjacent convex ribs, thereby enabling the turntable to alternately slide into the deep groove and the shallow groove in the process of rotation, thereby realizing the drive control of the turntable rotation. The overall structure does not require a motor and a reducer, and can be driven and controlled by the telescopic movement of the telescopic member, thereby realizing the longitudinal arrangement of the overall switching mechanism, greatly reducing the space occupied, realizing the miniaturized design of the equipment, meeting the miniaturized design requirements in special fields, and improving the adaptability of the equipment.
[0022] The traditional motor and reducer structure needs to strictly control the rotation angle of the motor, so the motor and reducer have high precision requirements, otherwise leakage will occur at the connecting position of the connecting hole and the guide hole; and the present application controls the rotation angle of the turntable through the structure of the convex rib and the ratchet. The rotation angle of the turntable can be determined by the designed angle between the convex rib and the ratchet. There is no requirement for the driving accuracy of the telescopic part, which improves the stability of the rotation of the driving turntable, while reducing the driving accuracy requirements and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic structural diagram of a switching mechanism according to an embodiment of the utility model;
[0024] Figure 2 for Figure 1 Schematic diagram of the decomposed structure of the switching mechanism;
[0025] Figure 3 for Figure 2 An enlarged schematic diagram of the middle circle A portion;
[0026] Figure 4 for Figure 2 A schematic cross-sectional view of the middle sleeve;
[0027] Figure 5 for Figure 2Schematic diagram of the structure of the middle push block;
[0028] Figure 6 for Figure 2 The structural diagram of the center turntable;
[0029] Figure 7 is a cross-sectional schematic diagram of a limit block located in a deep groove;
[0030] Figure 8 A cross-sectional diagram showing a push block pushing the limit block out from between the convex ribs.
[0031] The meanings of the numbers in the accompanying drawings are:
[0032] 100. Switching mechanism;
[0033] 10. rotor assembly; 11. sleeve; 111. convex rib; 112. deep groove; 113. shallow groove; 114. second inclined surface; 115. accommodating cavity; 116. cushion block; 12. push block; 121. slider; 122. ratchet; 125. socket; 13. rotating disk; 131. limit block; 132. plug column; 135. first inclined surface; 15. guide hole;
[0034] 20. stator assembly; 21. mounting seat; 211. cavity; 215. hook block; 22. valve disc; 221. large circular portion; 222. small circular portion; 23. elastic member; 25. connecting hole;
[0035] 30. Telescopic parts. DETAILED DESCRIPTION
[0036] 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.
[0037] 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.
[0038] 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.
[0039] 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.
[0040] 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.
[0041] 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.
[0042] It should be noted that according to Figure 1 As shown, the embodiment of the utility model has an X-axis direction. For the convenience of description, the first direction is defined as the X-axis direction.
[0043] See also Figures 1 to 8, is a switching mechanism 100 of an embodiment of the utility model, and the switching mechanism 100 includes a rotor assembly 10, a stator assembly 20 and a telescopic member 30. The rotor assembly 10 includes a sleeve 11, a push block 12 and a rotary disk 13. A receiving cavity 115 is provided in the sleeve 11, and the receiving cavity 115 passes through both ends of the sleeve 11 along the first direction; a plurality of convex ribs 111 extending along the first direction are provided on the inner side wall of the sleeve 11, and deep grooves 112 and shallow grooves 113 are alternately arranged between the plurality of convex ribs 111 in sequence, and the convex ribs 111 are used to limit the rotation of the components slidably arranged in the sleeve 11. The push block 12 and the rotary disk 13 are both slidably arranged in the receiving cavity 115 along the first direction; a slider 121 and a ratchet 122 are provided on the push block 12; the slider 121 is slidably arranged in the deep groove 112, and the ratchet 122 is arranged at one end of the push block 12 close to the rotary disk 13. The rotary disk 13 is provided with a limit block 131 and a guide hole 15, the limit block 131 is located in the deep groove 112 or the shallow groove 113, and the guide hole 15 is provided at one end of the rotary disk 13 away from the ratchet 122. The stator assembly 20 is pressed against the side of the rotary disk 13 away from the push block 12; the stator assembly 20 is provided with a connecting hole 25, and the connecting hole 25 is connected to the guide hole 15. The telescopic member 30 is connected to the push block 12, and the telescopic member 30 drives the push block 12 to move along the first direction. Among them, the telescopic member 30 drives the push block 12 to move along the first direction, and the push block 12 is used to push the turntable 13 out from between two adjacent convex ribs 111 along the first direction, that is, the limit block 131 of the turntable 13 is disengaged from between the two convex ribs 111 under the push of the push block 12. At this time, the convex rib 111 no longer limits the rotation of the turntable 13, and the stator assembly 20 presses the turntable 13 against the push block 12. The ratchet 122 of the push block 12 guides the turntable 13. The turntable 13 rotates at a certain angle under the action of the ratchet 122. The rotation of the turntable 13 will cause the guide hole 15 to rotate accordingly, so as to switch the connecting hole 25 to connect with each guide hole 15.
[0044] Further, the sleeve 11 is roughly cylindrical, the sleeve 11 extends along the first direction, and the sleeve 11 is connected and fixed to the outside; the accommodating cavity 115 is in the shape of a circular through hole, and the accommodating cavity 115 passes through both ends of the sleeve 11 along the first direction. The convex rib 111 is in the shape of a long strip extending along the first direction, and the convex rib 111 is convexly arranged on the inner side wall of the sleeve 11, and the convex rib 111 is evenly spaced around the inner side wall of the sleeve 11, and the deep groove 112 and the shallow groove 113 are alternately arranged between the convex ribs 111. In this embodiment, a pad 116 is provided in the shallow groove 113. The pad 116 is protruded from the inner wall of the sleeve 11 into the shallow groove 113. The pad 116 is provided between the ribs 111 on both sides of the shallow groove 113. The pad 116 is used to abut and limit the limit block 131, so that the limit block 131 can be rotated to the position of the deep groove 112 and can slide into the deep groove 112 accordingly. When the limit block 131 rotates to the position of the shallow groove 113, it will abut against the pad 116. The pad 116 limits the turntable 13 to the set height position of the shallow groove 113, so that the limit block 131 of the turntable 13 will produce a displacement change in the first direction in the deep groove 112 and the shallow groove 113, so as to facilitate the recording of changes in the process. In another embodiment, no cushion block 116 is provided in the shallow groove 113 to limit the limit block 131, that is, the limit block 131 can be rotated to the deep groove 112 or the shallow groove 113 and can slide into it. At this time, the limit block 131 of the turntable 13 has no displacement change in the first direction in the deep groove 112 and the shallow groove 113, which can further simplify the structure of the sleeve 11 and reduce the processing cost.
[0045] Furthermore, a second inclined surface 114 is provided at one end of the convex rib 111 close to the rotating disk 13. The second inclined surface 114 is inclined along the rotation direction of the rotating disk 13 and gradually approaches the push block 12, so as to ensure that after the push block 12 pushes the limit block 131 of the rotating disk 13 out of between the convex ribs 111, the second inclined surface 114 can effectively guide the rotation of the rotating disk 13 during the rotation of the rotating disk 13, thereby improving the smoothness of the rotation of the rotating disk 13.
[0046] Furthermore, the push block 12 is roughly cylindrical, extends along the first direction, and is disposed in the accommodating chamber 115. The slider 121 is convexly disposed on the outer wall of the push block 12, and the slider 121 corresponds to the setting position of the deep groove 112. The slider 121 is slidably disposed in the deep groove 112 to ensure that the push block 12 cannot rotate relative to the sleeve 11, and the push block 12 can only translate relative to the sleeve 11 along the first direction. The ratchet 122 is disposed at one end of the push block 12 facing the rotating disk 13, and the ratchet 122 is in a wave shape that bends back and forth, and the wave crest of the ratchet 122 is located between two adjacent ribs 111 to ensure that the rotating disk 13 is pressed against the inclined surface on one side of the crest of the ratchet 122 when sliding between the ribs 111, so that after the push block 12 pushes the rotating disk 13 out between the ribs 111, the rotating disk 13 rotates under the guidance of the ratchet 122.
[0047] Furthermore, the turntable 13 is slidably disposed in the accommodating cavity, and a limit block 131 is provided on the turntable 13. The limit block 131 is protruded from the outer side of the turntable 13. When the limit block 131 is slidably disposed between the convex ribs 111, the rotation of the turntable 13 is limited, that is, the turntable 13 can only translate in the first direction relative to the sleeve 11. When the limit block 131 is released from between the convex ribs 111, the convex ribs 111 do not limit the rotation of the turntable 13, that is, the turntable 13 can rotate relative to the sleeve 11. In this embodiment, the position of the limit block 131 corresponds to the position of the ratchet 122. The limit block 131 is arranged on the outer side of the rotating disk 13 in a long strip shape and extends to the end of the rotating disk 13 close to the push block 12. The end of the limit block 131 close to the ratchet 122 is provided with a first inclined surface 135. The first inclined surface 135 is inclined along the rotation direction of the rotating disk 13 and gradually approaches the push block 12. The first inclined surface 135 is used to guide the rotation of the rotating disk 13, further improving the smoothness of the rotation of the rotating disk 13. Specifically, the inclination angle of the first inclined surface 135 is the same as the inclination angle of the second inclined surface 114, so that the stability of the cooperation between the first inclined surface 135 and the second inclined surface 114 during the rotation of the rotating disk 13 is improved, thereby improving the stability of the rotation of the rotating disk 13.
[0048] Furthermore, the push block 12 is provided with a socket 125, which is in the shape of a cylindrical groove and extends along the first direction, and is provided at one end of the push block 12 close to the rotary disk 13. The rotary disk 13 is provided with a plug 132, which is in the shape of a cylinder and inserted into the socket 125. By inserting the plug 132 into the socket 125, the stability of the push block 12 and the rotary disk 13 when they are relatively displaced in the first direction is ensured, thereby improving the stability of the rotary disk 13 during rotation.
[0049] Furthermore, the guide hole 15 is a circular through-hole structure, and the guide hole 15 is L-shaped. One end of the guide hole 15 penetrates the outer curved surface of the rotating disk 13, and the other end of the guide hole 15 penetrates the side of the rotating disk 13 facing the stator assembly 20. In this embodiment, the wave crest positions of the ratchet teeth 122 are eight, and the number of the deep grooves 112 and the shallow grooves 113 are both four. In this way, the angle of rotation of the rotating disk 13 pushed by the push block 12 is 45 degrees. Since one guide hole 15 is for input and the other is for output when forming a loop, the number of guide holes 15 is 16, and two guide holes 15 form a group, and the deflection angle between two adjacent groups of guide holes 15 is 45 degrees.
[0050] Furthermore, the stator assembly 20 includes a mounting seat 21, a valve disc 22 and an elastic member 23. The mounting seat 21 is connected and fixed to the outside world, one end of the valve disc 22 is slidably arranged in the mounting seat 21, and the other end of the valve disc 22 extends toward the rotary disk 13. The connecting hole 25 is arranged on the valve disc 22, and the elastic member 23 is elastically supported between the mounting seat 21 and the valve disc 22 to elastically press the valve disc 22 against the rotary disk 13. In this embodiment, the connecting hole 25 is arranged in an L-shaped through hole shape, and the number of the connecting holes 25 is the same as that of the guide holes 15, which is sixteen. The arrangement shape of the connecting holes 25 is the same as that of the guide holes 15, so as to ensure that after the rotary disk 13 rotates, different guide holes 15 are switched to communicate with the connecting holes 25, and the guide holes 15 are connected to the resin column of the outside world, and the connecting holes 25 are connected to the solution containers required for each process of the outside world. By switching different guide holes 15 to communicate with the connecting holes 25 to form different circuits, the solution of the predetermined process is passed into the resin column.
[0051] Further, the mounting seat 21 is generally cylindrical, and the mounting seat 21 is extended along the first direction; a cavity 211 is provided in the mounting seat 21, and the cavity 211 is in the shape of a cylindrical groove, and the cavity 211 extends along the first direction, and the opening of the cavity 211 is provided on the side of the mounting seat 21 close to the rotary disk 13. In this embodiment, a hook block 215 is provided at one end of the mounting seat 21 close to the rotor assembly 10. The hook block 215 is annular and protrudes from the inner side wall of the mounting seat 21 into the cavity 211, and the hook block 215 is used to prevent the valve disc 22 from slipping out of the cavity 211.
[0052] Furthermore, the valve disc 22 includes a large circular portion 221 and a small circular portion 222. The large circular portion 221 is slidably disposed in the cavity 211, and the periphery of the large circular portion 221 is in contact with the inner wall of the mounting seat 21 to ensure the stability of the valve disc 22 moving relative to the mounting seat 21; the small circular portion 222 is cylindrical and extends toward the rotating disk 13, the connecting hole 25 is disposed on the small circular portion 222, and the hook block 215 is disposed around the outer side of the small circular portion 222.
[0053] Furthermore, the elastic member 23 is spiral-shaped, and the elastic member 23 is arranged in the cavity 211 of the mounting seat 21. The elastic member 23 is arranged on the side of the large circular portion 221 away from the small circular portion 222, and then the small circular portion 222 is elastically pressed against the turntable 13 to ensure the stability of the connection between the connecting hole 25 and the guide hole 15. At the same time, the elastic member 23 can effectively absorb the displacement of the turntable 13 in the first direction, thereby ensuring that the valve disc 22 and the turntable 13 are always in a fitted state.
[0054] Further, the telescopic member 30 is arranged on a side of the rotor assembly 10 away from the stator assembly 20, and the telescopic member 30 passes through the sleeve 11 and is connected to the push block 12, and the telescopic member 30 drives the push block 12 to move in the first direction. In the present embodiment, the telescopic member 30 is a cylinder. It can be understood that the telescopic member 30 is one of a cylinder, a hydraulic cylinder, a gear rack mechanism, a screw mechanism, and a linear motor. The specific structure of the telescopic member 30 is not limited here, and it is ensured that the telescopic member 30 can drive the push block 12 linearly. Since the telescopic member 30 drives the push block 12 linearly, the overall switching mechanism 100 can be uniformly arranged along the first direction, reducing the floor space, and the telescopic member 30 reciprocatingly drives the push block 12 to move to control the preset angle of rotation of the turntable 13, and the elastic member 23 absorbs the error of the telescopic distance of the telescopic member 30, thereby reducing the precision requirement of the telescopic member 30 and reducing the cost.
[0055] In summary, the embodiment of the present utility model provides a switching mechanism 100, which has the following beneficial effects:
[0056] The push block 12 is driven to move by the telescopic member 30, and the push block 12 pushes the turntable 13 out from between two adjacent convex ribs 111. A ratchet 122 is provided on the push block 12, and the stator assembly 20 provides pressure for the turntable 13 to press against the ratchet 122. The turntable 13 is disengaged from the rotation limit of the convex rib 111 and is guided by the ratchet 122, so that the turntable 13 can rotate by a certain angle until it slides into the gap between the adjacent convex ribs 111, thereby realizing that the turntable 13 slides alternately into the deep groove 112 and the shallow groove 113 in the process of rotation, thereby realizing the drive control of the rotation of the turntable 13. The overall structure does not require a motor and a reducer, and can be driven and controlled by the telescopic movement of the telescopic member 30, thereby realizing the longitudinal arrangement of the overall switching mechanism 100, greatly reducing the space occupied, realizing the miniaturized design of the equipment, meeting the miniaturized design requirements in special fields, and improving the adaptability of the equipment.
[0057] The traditional motor and reducer structure needs to strictly control the rotation angle of the motor, so the motor and reducer have high precision requirements, otherwise leakage will occur at the connecting position between the connecting hole 25 and the guide hole 15; and the present application controls the rotation angle of the turntable 13 by cooperating with the structure of the rib 111 and the ratchet 122. The rotation angle of the turntable 13 can be determined by the designed angle between the rib 111 and the ratchet 122. There is no requirement for the driving accuracy of the telescopic part 30, which improves the stability of the rotation of the driving turntable 13, while reducing the driving accuracy requirements and reducing costs.
[0058] The structure of the switching mechanism 100 is different from that of the traditional motor drive control, which effectively reduces the floor space and production cost, and is more suitable for application fields requiring miniaturization and low cost.
[0059] 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.
[0060] 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 switching mechanism (100) having a first direction, characterized in that: The switching mechanism (100) comprises: A rotor assembly (10), the rotor assembly (10) comprising a sleeve (11), a push block (12) and a rotating disk (13); a receiving cavity (115) is arranged in the sleeve (11), and the receiving cavity (115) passes through both ends of the sleeve (11) along a first direction; a plurality of convex ribs (111) extending along the first direction are arranged on the inner side wall of the sleeve (11), and deep grooves (112) and shallow grooves (113) are alternately arranged between the plurality of convex ribs (111); the push block (12) and the rotating disk (13) are both slidably arranged on the receiving cavity along the first direction. The push block (12) is provided with a slider (121) and a ratchet (122); the slider (121) is slidably arranged in the deep groove (112), and the ratchet (122) is arranged at one end of the push block (12) close to the rotating disk (13); a limit block (131) and a guide hole (15) are arranged on the rotating disk (13), the limit block (131) is located in the deep groove (112) or the shallow groove (113), and the guide hole (15) is arranged at one end of the rotating disk (13) away from the ratchet (122); a stator assembly (20), the stator assembly (20) being pressed against a side of the rotary disk (13) away from the push block (12); a connecting hole (25) being provided on the stator assembly (20), the connecting hole (25) being connected to the guide hole (15); and A telescopic member (30) connected to the push block (12), wherein the telescopic member (30) drives the push block (12) to move along a first direction; The push block (12) is used to push the rotating disk (13) out from between two adjacent convex ribs (111) along a first direction, and the rotating disk (13) rotates at a certain angle under the action of the ratchet (122) to switch the communication hole (25) to the connection with each of the guide holes (15).
2. The switching mechanism (100) according to claim 1, characterized in that: The ratchet teeth (122) are in a wave shape that bends back and forth, and the wave crest of the ratchet teeth (122) is located between two adjacent convex ribs (111).
3. The switching mechanism (100) according to claim 2, characterized in that: The position of the limit block (131) corresponds to that of the ratchet (122); a first inclined surface (135) is provided at one end of the limit block (131) close to the ratchet (122); the first inclined surface (135) is inclined along the rotation direction of the rotary disk (13) so as to gradually approach the push block (12).
4. The switching mechanism (100) according to claim 3, characterized in that: A second inclined surface (114) is provided at one end of the convex rib (111) close to the rotating disk (13); the second inclined surface (114) is inclined along the rotation direction of the rotating disk (13) so as to gradually approach the push block (12).
5. The switching mechanism (100) according to claim 1, characterized in that: A cushion block (116) is arranged in the shallow groove (113), and the cushion block (116) is protruded from the inner side wall of the sleeve (11) into the shallow groove (113). The cushion block (116) is used to abut and limit the limit block (131).
6. The switching mechanism (100) according to claim 1, characterized in that: The push block (12) is provided with a socket (125), and the rotary disk (13) is provided with an insertion column (132); the socket (125) is in the shape of a cylindrical groove extending along a first direction, and the insertion column (132) is in the shape of a cylinder and inserted into the socket (125).
7. The switching mechanism (100) according to claim 1, characterized in that: The stator assembly (20) comprises a mounting seat (21), a valve disc (22) and an elastic member (23); one end of the valve disc (22) is slidably disposed in the mounting seat (21), and the other end of the valve disc (22) extends toward the rotating disc (13); the connecting hole (25) is disposed on the valve disc (22); and the elastic member (23) is elastically supported between the mounting seat (21) and the valve disc (22) so as to elastically press the valve disc (22) against the rotating disc (13).
8. The switching mechanism (100) according to claim 7, characterized in that: A cavity (211) is provided in the mounting seat (21), and the elastic member (23) is installed in the cavity (211); a hook block (215) is provided at one end of the mounting seat (21) close to the rotor assembly (10), and the hook block (215) is annular and protrudes from the inner side wall of the mounting seat (21) into the cavity (211).
9. The switching mechanism (100) according to claim 8, characterized in that: The valve disc (22) includes a large circular portion (221) and a small circular portion (222); the large circular portion (221) is slidably disposed in the cavity (211), the periphery of the large circular portion (221) is in contact with the inner wall of the mounting seat (21), the small circular portion (222) extends from the large circular portion (221) toward the rotating disc (13), the connecting hole (25) is disposed on the small circular portion (222), and the hook block (215) is disposed around the outer side of the small circular portion (222).
10. The switching mechanism (100) according to claim 1, characterized in that: The guide hole (15) and the connecting hole (25) are both L-shaped.