A magnetic conversion reciprocating motion device

Abstract

The present invention discloses a magnetic conversion reciprocating motion device, comprising a gear reciprocating assembly, a first magnetic telescopic clutch assembly, a second magnetic telescopic clutch assembly, an intermediate plate, a puller and a housing, wherein the gear reciprocating assembly, the first magnetic telescopic clutch assembly, the second magnetic telescopic clutch assembly and the intermediate plate are arranged in the housing, and the gear reciprocating assembly drives the intermediate plate to perform positive and negative stroke actions under the joint action of the first magnetic telescopic clutch assembly and the second magnetic telescopic clutch assembly. The present invention can achieve a pause when the positive stroke reaches the extreme point, and has strong durability.

Description

Technical Field

[0001] The invention relates to a magnetic conversion reciprocating motion device, belonging to the technical field of reciprocating motion mechanisms. Background Art

[0002] Mechanical equipment often uses various linear sliding structures. Standard products are often used reluctantly due to size mismatch or less than ideal installation methods, which will seriously affect the processing accuracy of mechanical equipment. Only linear motion structures with small size, easy installation and high precision can meet various non-standard design requirements. Reciprocating motion mechanisms can be used in handicraft production, toy manufacturing, electric control switches, etc.

[0003] Existing mechanical reciprocating motion mechanisms mostly use a cam structure or a connecting rod structure. The reciprocating motion structure is relatively complex and inconvenient to use. Since its reciprocating motion is continuous, it cannot pause between the positive stroke and the negative stroke. When the positive (negative) stroke needs to reach the extreme and pause, the cam structure or the connecting rod structure has a relatively complex implementation structure, and its operation is complex and its durability is poor. Summary of the invention

[0004] Purpose of the invention: In order to solve the problems of complex operation and low durability of existing mechanical reciprocating motion mechanisms, the present invention provides a magnetic conversion reciprocating motion device, which can stop when the positive (negative) stroke reaches the extreme point, and its operation is simple and durable.

[0005] Technical solution: To achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A magnetic conversion reciprocating motion device comprises a gear reciprocating assembly, a first magnetic telescopic clutch assembly, a second magnetic telescopic clutch assembly, an intermediate plate, a puller and a housing, wherein the gear reciprocating assembly, the first magnetic telescopic clutch assembly, the second magnetic telescopic clutch assembly and the intermediate plate are arranged in the housing, wherein:

[0007] The pulling member is used to pull the gear reciprocating assembly.

[0008] The gear reciprocating assembly drives the intermediate plate to perform positive and negative stroke movements under the joint action of the first magnetic telescopic clutch assembly and the second magnetic telescopic clutch assembly.

[0009] The first magnetic telescopic clutch assembly is used to connect the gear reciprocating assembly and the middle plate when the middle plate is in a positive stroke, so that the gear reciprocating assembly drives the middle plate to perform a positive stroke, and disconnect the connection between the gear reciprocating assembly and the middle plate when the middle plate is in a negative stroke.

[0010] The second magnetic telescopic clutch assembly is used to disconnect the gear reciprocating assembly and the intermediate plate when the intermediate plate has a positive stroke, and to connect the gear reciprocating assembly and the intermediate plate when the intermediate plate has a negative stroke, so that the gear reciprocating assembly drives the intermediate plate to perform a negative stroke.

[0011] Preferably, the gear reciprocating mechanism comprises a first rack, a second rack, a gear and a first elastic member, wherein the gear is mounted on the housing and the gear is rotatably connected to the housing. The first rack and the second rack are slidably mounted in the housing, the first rack and the second rack are meshed and transmission-connected with the gear, and the gear is located between the first rack and the second rack. One end of the first elastic member is connected to the first rack, and the other end is connected to the housing.

[0012] Preferably, the first magnetic telescopic clutch mechanism comprises a first group of magnets, a first paddle, and a second elastic member, wherein:

[0013] The first group of magnets includes a first magnet 1 and a first magnet 2, wherein the first magnet 1 is arranged on the left side of the shell, and the first magnet 2 is arranged on the first paddle.

[0014] A first paddle slide groove 1 extending from left to right is arranged on the left side of the middle plate, the first paddle is installed on the first paddle slide groove 1, and the first paddle is slidably connected to the first paddle slide groove 1.

[0015] One end of the second elastic member is connected to the first paddle, and the other end is connected to the middle plate.

[0016] Preferably, the second magnetic telescopic clutch mechanism comprises a second group of magnets, a second paddle, and a third elastic member, wherein:

[0017] The second group of magnets includes a second magnet 1 and a second magnet 2, wherein the second magnet 1 is disposed on the right side of the housing and the second magnet 2 is disposed on the second paddle.

[0018] A second paddle slide groove one is arranged on the right side of the middle plate from right to left, the second paddle is installed on the second paddle slide groove one, and the second paddle is slidably connected to the second paddle slide groove one.

[0019] One end of the third elastic member is connected to the second paddle, and the other end is connected to the middle plate.

[0020] Preferably: a first bayonet and a first paddle slot edge are provided on the left side of the first rack, and the first paddle slot edge and the left side of the shell form a first paddle slot 2. A second bayonet and a second paddle slot edge are provided on the right side of the second rack, and the second paddle slot edge and the right side of the shell form a second paddle slot 2. A first dial head is provided on the first paddle, and a second dial head is provided on the second paddle. When the first dial head is at the extreme left position, the first dial head can enter the first paddle slot 2 to slide, and when the first dial head is at the extreme right position, the first dial head is located in the driving direction of the first bayonet. When the second dial head is at the extreme right position, the second dial head can enter the second paddle slot 2 to slide, and when the second dial head is at the extreme left position, the second dial head is located in the driving direction of the second bayonet.

[0021] Preferably: the housing is provided with a first slide groove, the first rack is provided with a first slider, the first slider is installed in the first slide groove, and the first slider is slidably connected to the first slide groove. The housing is provided with a second slide groove, the second rack is provided with a second slider, the second slider is installed in the second slide groove, and the second slider is slidably connected to the second slide groove.

[0022] Preferably: if the N poles of the second magnet 1 and the second magnet 2 point in opposite directions, the third elastic member is a tensile elastic member; if the N poles of the second magnet 1 and the second magnet 2 point in the same direction, the third elastic member is a compressive elastic member.

[0023] Preferably: if the N poles of the first magnet 1 and the first magnet 2 point in opposite directions, the second elastic member is a tensile elastic member; if the N poles of the second magnet 1 and the second magnet 2 point in the same direction, the second elastic member is a compressive elastic member.

[0024] Preferably, the first elastic member, the second elastic member and the third elastic member are springs or elastic rubber strips. The pulling member is a pulling rod or a pulling rope.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention connects the gear reciprocating assembly and the middle plate through the first magnetic telescopic clutch assembly when the middle plate is in a positive stroke, so that the gear reciprocating assembly drives the middle plate to perform a positive stroke, and disconnects the connection between the gear reciprocating assembly and the middle plate when the middle plate is in a negative stroke. The second magnetic telescopic clutch assembly disconnects the connection between the gear reciprocating assembly and the middle plate when the middle plate is in a positive stroke, and connects the gear reciprocating assembly and the middle plate when the middle plate is in a negative stroke, so that the gear reciprocating assembly drives the middle plate to perform a negative stroke. Under the joint action of the first magnetic telescopic clutch assembly and the second magnetic telescopic clutch assembly, the gear reciprocating assembly drives the middle plate to perform positive and negative stroke actions, so that it can be achieved that the positive (negative) stroke can be stopped when it reaches the extreme point, and the operation is simple and the durability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 Schematic diagram of the mechanism in which the gear reciprocating assembly is installed in the housing.

[0029] Figure 3 It is a schematic diagram of the shell structure.

[0030] Figure 4 Schematic diagram of the gear reciprocating assembly structure.

[0031] Figure 5 Schematic diagram of the middle plate structure.

[0032] Figure 6 Schematic diagram of the paddle structure.

[0033] Figure 7 Schematic diagram of the initial state of the middle plate.

[0034] Figure 8 This is a schematic diagram of the state where the middle plate's positive travel rope is pulled to the top.

[0035] Fig. 9 This is a schematic diagram of the final state of the middle plate's positive stroke after the pull rope is released.

[0036] Fig.10 This is a schematic diagram of the state where the negative travel rope of the middle plate is pulled to the top.

[0037] Fig.11 This is a schematic diagram of the most severe state when the middle plate has a negative stroke and the pull rope is released.

[0038] In the figure, 1 is a shell, 11 is a first magnet 1, 12 is a second magnet 1, 13 is a first slide groove, 14 is a second slide groove, 21 is a first rack, 211 is a first bayonet, 212 is a first slider, 213 is a first paddle slot edge, 214 is a first paddle slot 2, 22 is a second rack, 221 is a second bayonet, 222 is a second paddle slot 2, 223 is a second paddle slot edge, 224 is a second paddle slot 2, 23 is a gear, 24 is a puller, 25 is a first elastic member, 3 is an intermediate plate, 24 is a puller, 31 is a first paddle, 311 is a first magnet 2, 312 is a first paddle slot 1, 313 is a second elastic member, 314 is a first dial head, 32 is a second paddle, 321 is a second magnet 2, 322 is a second paddle slot 1, 323 is a third elastic member, and 324 is a second dial head. DETAILED DESCRIPTION

[0039] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0040] A magnetic conversion reciprocating motion device, such as Figure 1 As shown, it includes a gear reciprocating assembly, a first magnetic telescopic clutch assembly, a second magnetic telescopic clutch assembly, an intermediate plate 3 and a pull member 24, wherein:

[0041] The pulling member 24 is used to pull the gear reciprocating assembly.

[0042] The gear reciprocating assembly drives the intermediate plate 3 to perform positive and negative stroke movements under the joint action of the first magnetic telescopic clutch assembly and the second magnetic telescopic clutch assembly.

[0043] The first magnetic telescopic clutch assembly is used to connect the gear reciprocating assembly and the intermediate plate 3 when the intermediate plate 3 is in a positive stroke, so that the gear reciprocating assembly drives the intermediate plate 3 to perform a positive stroke, and disconnect the connection between the gear reciprocating assembly and the intermediate plate 3 when the intermediate plate 3 is in a negative stroke.

[0044] The second magnetic telescopic clutch assembly is used to disconnect the gear reciprocating assembly and the intermediate plate 3 when the intermediate plate 3 is in a positive stroke, and to connect the gear reciprocating assembly and the intermediate plate 3 when the intermediate plate 3 is in a negative stroke, so that the gear reciprocating assembly drives the intermediate plate 3 to perform a negative stroke.

[0045] like Figure 1-3 As shown, it includes a housing 1, and the gear reciprocating assembly, the first magnetic telescopic clutch assembly, the second magnetic telescopic clutch assembly, and the intermediate plate 3 are arranged in the housing 1. The housing 1 is provided with a first slide groove 13, and the first rack 21 is provided with a first slider 212, the first slider 212 is installed in the first slide groove 13, and the first slider 212 is slidably connected to the first slide groove 13. When the first rack 21 slides in the housing 1, the first slider 212 slides along the first slide groove 13, thereby fixing the sliding direction of the first rack 21 in the housing 1. The housing 1 is provided with a second slide groove 14, and the second rack 22 is provided with a second slider 222, the second slider 222 is installed in the second slide groove 14, and the second slider 222 is slidably connected to the second slide groove 14. When the second rack 22 slides in the housing 1, the second slider 222 slides along the second slide groove 14, thereby fixing the sliding direction of the second rack 22 in the housing 1.

[0046] like Figure 4As shown, the gear reciprocating mechanism includes a first rack 21, a second rack 22, a gear 23 and a first elastic member 25, wherein the gear 23 is mounted on the housing 1, and the gear 23 is rotatably connected to the housing 1. The first rack 21 and the second rack 22 are slidably mounted in the housing 1, and the first rack 21 and the second rack 22 are meshed and transmission-connected with the gear 23, and the gear 23 is located between the first rack 21 and the second rack 22. The first rack 21 and the second rack 22 are arranged in parallel. Therefore, when the first rack 21 moves upward, the first rack 21 drives the gear 23 to rotate forward, and the forward rotation of the gear 23 drives the second rack 22 to move downward. When the first rack 21 moves downward, the first rack 21 drives the gear 23 to rotate reversely, and the reverse rotation of the gear 23 drives the second rack 22 to move upward. Through the meshing transmission of the gear 23, the movement directions of the first rack 21 and the second rack 22 are opposite.

[0047] One end of the first elastic member 25 is connected to the first rack 21, and the other end is connected to the housing 1. When the first elastic member 25 and the pull member 24 are located at different ends of the first rack 21, such as when the pull member 24 is located at the upper end of the first rack 21, when the pull member 24 is pulled to pull the first rack 21 upward, the first elastic member 25 is stretched and deformed. When the pull member 24 is released, the first elastic member 25 is reset and contracted, and the first rack 21 is pulled downward. When the first elastic member 25 and the pull member 24 are located at the same end of the first rack 21, such as when the pull member 24 and the first elastic member 25 are simultaneously located at the upper end of the first rack 21, when the pull member 24 is pulled to pull the first rack 21 upward, the first elastic member 25 is contracted and deformed. When the pull member 24 is released, the first elastic member 25 is reset and extended, and the first rack 21 is pushed downward.

[0048] like Figure 1 , 2 As shown in , 5 and 6, the first magnetic telescopic clutch mechanism includes a first group of magnets, a first paddle 31, and a second elastic member 313, wherein:

[0049] The first group of magnets includes a first magnet 11 and a first magnet 2 311 . The first magnet 11 is disposed on the left side of the housing 1 , and the first magnet 2 311 is disposed on the first paddle 31 .

[0050] A first paddle slide groove 312 is provided on the left side of the middle plate 3 from left to right, and the first paddle 31 is installed on the first paddle slide groove 312, and the first paddle 31 is slidably connected to the first paddle slide groove 312, that is, the first paddle 31 slides left and right along the first paddle slide groove 312, and the first paddle 31 cannot move up and down in the first paddle slide groove 312.

[0051] One end of the second elastic member 313 is connected to the first paddle 31 , and the other end is connected to the middle plate 3 .

[0052] The N poles of the first magnet 11 and the first magnet 2 311 point in opposite directions, so the second elastic member 313 is a tensile elastic member, and the maximum relative suction force between the first magnet 11 and the first magnet 2 311 is greater than the tensile force of the second elastic member 313. When the first magnet 11 and the first magnet 2 311 are opposite, the first magnet 11 and the first magnet 2 311 attract each other. Since the first magnet 2 311 is arranged on the first paddle 31, the first paddle 31 moves to the right and stretches the second elastic member 313. When the first magnet 11 and the first magnet 2 311 are staggered, the relative suction force between the first magnet 11 and the first magnet 2 311 is less than the tensile force of the second elastic member 313, and the second elastic member 313 shrinks and resets, pulling the first paddle 31 to move to the left until it is reset.

[0053] The N poles of the first magnet 11 and the first magnet 2 311 point in the same direction, and the second elastic member 313 is a compression elastic member, and the repulsive force between the first magnet 11 and the first magnet 2 311 is greater than the compression force of the second elastic member 313. When the first magnet 11 and the first magnet 2 311 are opposite, the first magnet 11 and the first magnet 2 311 repel each other. Since the first magnet 2 311 is arranged on the first paddle 31, the first paddle 31 moves to the right and compresses the second elastic member 313. When the first magnet 11 and the first magnet 2 311 are staggered, the repulsive force between the first magnet 11 and the first magnet 2 311 is less than the compression force of the second elastic member 313, and the second elastic member 313 stretches and resets, pulling the first paddle 31 to move to the left until it is reset.

[0054] The second magnetic telescopic clutch mechanism includes a second group of magnets, a second paddle 32, and a third elastic member 323, wherein:

[0055] The second group of magnets includes a second magnet 12 and a second magnet 321 . The second magnet 12 is disposed on the right side of the housing 1 . The second magnet 321 is disposed on the second paddle 32 .

[0056] A second paddle slide groove 322 extending from right to left is provided on the right side of the middle plate 3 . The second paddle 32 is installed on the second paddle slide groove 322 , and the second paddle 32 is slidably connected to the second paddle slide groove 322 .

[0057] One end of the third elastic member 323 is connected to the second paddle 32 , and the other end is connected to the middle plate 3 .

[0058] The N poles of the second magnet 12 and the second magnet 2 321 point in opposite directions, so the third elastic member 323 is a stretching elastic member, and the maximum suction force between the second magnet 12 and the second magnet 2 321 is greater than the stretching force of the second elastic member 313. When the second magnet 12 and the second magnet 2 321 are opposite, the second magnet 12 and the second magnet 2 321 attract each other. Since the second magnet 2 321 is arranged on the second paddle 32, the second paddle 32 moves to the left and stretches the third elastic member 323. When the second magnet 12 and the second magnet 2 321 are staggered, the suction force between the second magnet 12 and the second magnet 2 321 is less than the stretching force of the third elastic member 323, and the third elastic member 323 shrinks and resets, pulling the second paddle 32 to move to the right until it is reset.

[0059] The N poles of the second magnet 12 and the second magnet 2 321 point in the same direction, and the third elastic member 323 is a compression elastic member. The repulsive force between the second magnet 12 and the second magnet 2 321 is greater than the compression force of the third elastic member 323. When the second magnet 12 and the second magnet 2 321 are opposite, the second magnet 12 and the second magnet 2 321 repel each other. Since the second magnet 2 321 is arranged on the second paddle 32, the second paddle 32 moves to the left and compresses the third elastic member 323. When the second magnet 12 and the second magnet 2 321 are staggered, the repulsive force between the second magnet 12 and the second magnet 2 321 is less than the compression force of the third elastic member 323, and the third elastic member 323 stretches and resets, pulling the second paddle 32 to move to the right until it is reset.

[0060] like Figure 1 , 2 As shown in Figures 4 and 5, the first rack 21 is provided with a first bayonet 211 and a first paddle slot edge 213 on the left side, and the first paddle slot edge 213 and the left side of the housing 1 form a first paddle slot 214. The second rack 22 is provided with a second bayonet 221 and a second paddle slot edge 223 on the right side, and the second paddle slot edge 223 and the right side of the housing 1 form a second paddle slot 224. The first paddle 31 is provided with a first paddle head 314, and the second paddle 32 is provided with a second paddle head 324. When the first paddle head 314 is at the extreme left position, the first paddle head 314 can enter the first paddle slot 214 and slide. When the first paddle head 314 is at the extreme right position, the first paddle head 314 is located in the driving direction of the first bayonet 211. When the second dial head 324 is at the rightmost limit position, the second dial head 324 can slide into the second second dial slide groove 224 . When the second dial head 324 is at the leftmost limit position, the second dial head 324 is located in the driving direction of the second bayonet 221 .

[0061] The first elastic member 25, the second elastic member 313 and the third elastic member 323 are springs or elastic rubber strips. The pull member 24 is a pull rod or a pull rope.

[0062] Define upward movement as positive stroke, and downward movement as negative stroke, then the movement process of the middle plate is as follows:

[0063] 1. Initial state of the middle plate

[0064] 1.1, such as Figure 7 As shown, in the initial state, the first magnet 11 is directly opposite to the first magnet 2 311. Since the first magnet 11 is fixed on the left side of the shell 1, at this time, under the interaction between the first magnet 11 and the first magnet 2 311, the repulsive force (or attractive force) between the first magnet 11 and the first magnet 2 311 is greater than the elastic force of the elastic deformation of the second elastic member 313. The first magnet 11 drives the first paddle 31 to move rightward in the first paddle slide groove 1 312 to elastically deform the second elastic member 313 until the repulsive force (or attractive force) between the first magnet 11 and the first magnet 2 311 is equal to the elastic force of the elastic deformation of the second elastic member 313. At this time, the first paddle head 314 of the first paddle 31 is located in the traveling direction of the first bayonet 211.

[0065] 1.2, such as Figure 7 As shown, in the initial state, the second magnet 12 and the second magnet 2 321 are staggered with each other. Since the second magnet 12 is fixed on the right side of the shell 1, the repulsive force (or attractive force) between the second magnet 12 and the second magnet 2 321 is smaller than (or smaller than) the elastic force of the elastic deformation of the third elastic member 323, so that the third elastic member 323 drives the second paddle 32 to move rightward in the second paddle slot 1 322 until the repulsive force between the second magnet 12 and the second magnet 2 321 is equal to the elastic force of the elastic deformation of the third elastic member 323, so that the second paddle head 324 of the second paddle 32 leaves the traveling direction of the second bayonet 221 and is tightly attached to the right side of the shell 1, and is located in the traveling direction of the second paddle slot 224.

[0066] 2. The middle plate positive stroke motion process

[0067] 2.1, such as Figure 8As shown, the pull rope 24 is pulled upward, and the first rack 21 moves upward. Since the first head 314 of the first paddle 31 is located in the driving direction of the first bayonet 211, the first head 314 of the first paddle 31 is stuck in the first bayonet 211 during the upward movement of the first bayonet 211, and the first rack 21 continues to move upward. The first rack 21 pushes the first paddle 31 upward through the first head 314. Since the first paddle 31 is set in the first paddle slot 1 312, the first paddle 31 moves upward with the middle plate 3, and the middle plate 3 moves upward to drive the second paddle 32 to move upward. In addition, the upward movement of the first rack 21 elastically stretches the first elastic member 25.

[0068] 2.2, such as Figure 8 As shown, when the pull rope 24 is pulled upward to make the first rack 21 move upward, the first rack 21 drives the gear 23 to rotate. Since the first rack 21 and the second rack 22 are located on both sides of the gear 23, when the gear 23 rotates, the movement direction of the first rack 21 is opposite to that of the second rack 22, that is, the rotation of the gear 23 drives the second rack 22 to move downward, and the second rack 22 moves downward. In addition, since the middle plate 3 moves upward, the second paddle 32 moves upward, that is, the second rack 22 moves downward, and the middle plate 3 moves upward. During the relative movement, the second paddle slot 224 formed by the second paddle notch edge 223 and the right side edge of the housing 1 moves downward, and the second paddle head 324 of the second paddle 32 moves upward in the second paddle slot 224. When the middle plate moves upward to the first extreme position 1, the second magnet 2 321 is opposite to the second magnet 12. Since the second paddle 32 is located in the second paddle slot 224 at this time, the repulsive force between the second magnet 12 and the second magnet 2 321 is equal to the elastic force generated by the elastic deformation of the third elastic member 323, so that the second paddle 32 is tightly attached to the left side of the second paddle slot 224.

[0069] 2.3, such as Fig. 9 As shown, when the pull rope 24 is released, the first elastic member 25 is reset to drive the first rack 21 to move downward. During the downward movement of the first rack 21, the first dial head 314 of the first paddle 31 comes out of the first bayonet 211. At this time, the repulsive force between the first magnet 11 and the first magnet 2 311 is less than the elastic force of the elastic deformation of the second elastic member 313. The second elastic member 313 is reset to drive the first paddle 31 to move out of the first paddle slot 1 312 until the repulsive force between the first magnet 11 and the first magnet 2 311 is equal to the elastic force of the elastic deformation of the second elastic member 313. At this time, the dial head of the first paddle 31 leaves the traveling direction of the first bayonet 211 and is tightly attached to the left side of the shell 1, and is located in the traveling direction of the first paddle slot 214.

[0070] 2.4, such as Fig. 9 As shown, during the process of the first elastic member 25 returning to its original position and driving the first rack 21 to move downward, the first rack 21 drives the gear 23 to rotate, and the rotation of the gear 23 drives the second rack 22 to move upward. The upward movement of the second rack 22 causes the second paddle slide groove 224 to move upward. When the second bayonet 221 slides to the position of the second magnet 12, the second paddle 32 slides out of the second paddle slide groove 224. The repulsive force between the second magnet 12 and the second magnet 2 321 is greater than the elastic force generated by the elastic deformation of the third elastic member 323, so that the second magnet 2 321 drives the second paddle 32 to move leftward in the second paddle slide groove 1 322 until the repulsive force between the second magnet 12 and the second magnet 2 321 is equal to the elastic force of the elastic deformation of the third elastic member 323, so that the paddle head of the second paddle 32 is located in the traveling direction of the second bayonet 221.

[0071] 3. The negative stroke movement process of the middle plate

[0072] 3.1, such as Fig.10 As shown, the pull rope 24 is pulled upward, the first rack 21 moves upward, the first rack 21 drives the gear 23 to rotate, and the rotation of the gear 23 drives the second rack 22 to move downward. Since the second dial head 324 of the second paddle 32 is located in the driving direction of the second bayonet 221, the second dial head 324 of the second paddle 32 is stuck in the second bayonet 221 during the downward movement of the second bayonet 221, the first rack 21 continues to move upward, and the second rack 22 pushes the second paddle 32 to move downward through the second dial head 324. Since the second paddle 32 is set in the second paddle slide groove 1 322, the second paddle 32 moves downward with the middle plate 3, and the downward movement of the middle plate 3 drives the first paddle 31 to move downward.

[0073] 3.2, such as Fig.10 As shown, the first paddle head 314 of the first paddle 31 slides in the first paddle slot 214 formed by the first paddle slot edge 213 and the left side of the shell 1. When the middle plate moves downward to the first extreme position 2, the first magnet 11 is opposite to the first magnet 2 311. Since the first paddle 31 is located in the first paddle slot 1 312 at this time, the repulsive force between the first magnet 11 and the first magnet 2 311, the elastic force generated by the elastic deformation of the second elastic member 313, and the supporting force generated by the first paddle slot 214 on the first paddle 31 offset each other, so that the first paddle 31 is tightly attached to the right side of the first paddle slot 214 and is located in the driving direction of the first bayonet 211.

[0074] 3.3, such as Fig.11As shown, when the pull rope 24 is released, the first elastic member 25 is reset to drive the first rack 21 to move downward. During the downward movement of the first rack 21, the first paddle slot 214 moves downward. When the first bayonet 211 slides to the position of the first magnet 11, the first paddle 31 slides out of the first paddle slot 214. The repulsive force between the first magnet 11 and the first magnet 2 311 is greater than the elastic force generated by the elastic deformation of the second elastic member 313, so that the first magnet 2 311 drives the first paddle 31 to move from left to right in the first paddle slot 1 312 until the repulsive force between the first magnet 11 and the first magnet 2 311 is equal to the elastic force generated by the elastic deformation of the second elastic member 313, so that the paddle head of the first paddle 31 is located in the traveling direction of the first bayonet 211.

[0075] 3.4, such as Fig.11 As shown, during the downward movement of the first rack 21, the first rack 21 drives the gear 23 to rotate, and the rotation of the gear 23 drives the second rack 22 to move upward, and the head of the second paddle 32 comes out of the second bayonet 221. At this time, the repulsive force between the second magnet 12 and the second magnet 2 321 is less than the elastic force of the elastic deformation of the third elastic member 323. The third elastic member 323 resets and drives the second paddle 32 to move out of the second paddle slot 1 322 until the repulsive force between the second magnet 12 and the second magnet 2 321 is equal to the elastic force of the elastic deformation of the third elastic member 323. At this time, the head of the second paddle 32 leaves the traveling direction of the second bayonet 221 and is tightly attached to the right side edge of the shell 1, and is located in the traveling direction of the second paddle slot 224.

[0076] The invention can realize reciprocating motion through pulling and drawing actions, and can stop when the positive (negative) stroke reaches the extreme point, and has simple operation and strong durability.

[0077] Application scenarios of the present invention: It can be applied to the extension or retraction of hidden parts. It only needs to drive the middle plate 3 to connect with the extension part (retraction part), and the reciprocating motion of the middle plate 3 can drive the extension part (retraction part) to reciprocate, thereby realizing the retraction and extension functions.

[0078] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A magnetic conversion reciprocating motion device, characterized in that: The invention comprises a gear reciprocating assembly, a first magnetic telescopic clutch assembly, a second magnetic telescopic clutch assembly, an intermediate plate (3), a pulling member (24) and a housing (1), wherein the gear reciprocating assembly, the first magnetic telescopic clutch assembly, the second magnetic telescopic clutch assembly and the intermediate plate (3) are arranged in the housing (1), wherein: The pulling member (24) is used to pull the gear reciprocating assembly; The gear reciprocating assembly drives the intermediate plate (3) to perform positive and negative stroke motions under the combined action of the first magnetic telescopic clutch assembly and the second magnetic telescopic clutch assembly; The gear reciprocating assembly comprises a first rack (21), a second rack (22), a gear (23) and a first elastic member (25); the gear (23) is mounted on the housing (1), and the gear (23) is rotatably connected to the housing (1); the first rack (21) and the second rack (22) are slidably mounted in the housing (1); the first rack (21) and the second rack (22) are meshingly connected to the gear (23), and the gear (23) is located between the first rack (21) and the second rack (22); one end of the first elastic member (25) is connected to the first rack (21), and the other end is connected to the housing (1); The first magnetic telescopic clutch assembly is used to connect the gear reciprocating assembly and the intermediate plate (3) when the intermediate plate (3) is in a positive stroke, so that the gear reciprocating assembly drives the intermediate plate (3) to perform a positive stroke, and disconnects the connection between the gear reciprocating assembly and the intermediate plate (3) when the intermediate plate (3) is in a negative stroke; The first magnetic telescopic clutch assembly comprises a first group of magnets, a first paddle (31), and a second elastic member (313), wherein: the first group of magnets comprises a first magnet 1 (11) and a first magnet 2 (311), the first magnet 1 (11) being arranged on the left side of the housing (1), and the first magnet 2 (311) being arranged on the first paddle (31); a first paddle slide groove 1 (312) extending from left to right is arranged on the left side of the intermediate plate (3), the first paddle (31) is mounted on the first paddle slide groove 1 (312), and the first paddle (31) is slidably connected to the first paddle slide groove 1 (312); one end of the second elastic member (313) is connected to the first paddle (31), and the other end is connected to the intermediate plate (3); The second magnetic telescopic clutch assembly is used to disconnect the gear reciprocating assembly from the intermediate plate (3) when the intermediate plate (3) is in a positive stroke, and to connect the gear reciprocating assembly to the intermediate plate (3) when the intermediate plate (3) is in a negative stroke, so that the gear reciprocating assembly drives the intermediate plate (3) to perform a negative stroke; The second magnetic telescopic clutch assembly comprises a second group of magnets, a second paddle (32), and a third elastic member (323), wherein: the second group of magnets comprises a second magnet one (12) and a second magnet two (321), the second magnet one (12) being arranged on the right side of the shell (1); the second magnet two (321) being arranged on the second paddle (32); a second paddle slide groove one (322) extending from right to left is arranged on the right side of the middle plate (3), the second paddle (32) is mounted on the second paddle slide groove one (322), and the second paddle (32) is slidably connected to the second paddle slide groove one (322); one end of the third elastic member (323) is connected to the second paddle (32), and the other end is connected to the middle plate (3); The first elastic member (25), the second elastic member (313), and the third elastic member (323) are springs or elastic rubber strips; and the pulling member (24) is a pulling rod or a pulling rope.

2. The magnetic conversion reciprocating motion device according to claim 1, characterized in that: A first latch (211) and a first paddle slot edge (213) are provided on the left side of the first rack (21), and the first paddle slot edge (213) and the left side of the shell (1) form a first paddle slide groove 2 (214); a second latch (221) and a second paddle slot edge (223) are provided on the right side of the second rack (22), and the second paddle slot edge (223) and the right side of the shell (1) form a second paddle slide groove 2 (224); a first paddle head (314) is provided on the first paddle (31), and a second paddle head (32) is provided on the second paddle (32). (324); when the first dial head (314) is at the extreme left position, the first dial head (314) can enter the first dial slide groove (214) to slide, and when the first dial head (314) is at the extreme right position, the first dial head (314) is located in the travel direction of the first bayonet (211); when the second dial head (324) is at the extreme right position, the second dial head (324) can enter the second dial slide groove (224) to slide, and when the second dial head (324) is at the extreme left position, the second dial head (324) is located in the travel direction of the second bayonet (221).

3. The magnetic conversion reciprocating motion device according to claim 2, characterized in that: The housing (1) is provided with a first slide groove (13), the first rack (21) is provided with a first slider (212), the first slider (212) is installed in the first slide groove (13), and the first slider (212) is slidably connected to the first slide groove (13); the housing (1) is provided with a second slide groove (14), the second rack (22) is provided with a second slider (222), the second slider (222) is installed in the second slide groove (14), and the second slider (222) is slidably connected to the second slide groove (14).

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