Special double-core anti-collision normally-closed switch for massage chair
By adopting a universal anti-collision device built into the track in the massage chair, the problem of poor anti-collision normally closed switch of the dual-movement massage chair is solved, and the applicability and cost savings are achieved on different movements.
Patent Information
- Application Number
- CN202521499237.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2035-07-17
AI Technical Summary
The anti-collision normally closed switches of existing dual-movement massage chairs are poor in versatility, and different anti-collision switches need to be set according to different movements, resulting in increased cost and adaptability problems.
It adopts a universal anti-collision device built into the track, including a collision block, a moving contact piece and a static contact piece. The contact and separation between the static contact piece and the static contact piece is driven by the reset member to achieve the versatility and stability of the switch, and is suitable for massage movements of different structures.
The anti-collision and reversing functions are realized when replacing different movements, reducing the types and matching settings of anti-collision switches, reducing costs, and improving applicability and stability.
Smart Images
Figure CN223230238U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of massage chair switches, in particular to a double-core anti-collision normally closed switch specially used for massage chairs. Background Art
[0002] With the development of the massage chair industry, customers are demanding higher levels of comfort and functionality, leading to the emergence of dual-movement massage chairs. Dual-movement massage chairs consist of a chair frame with two massage movements and a track for the two movements to travel along. The two movements move up and down along the same track, providing a massage.
[0003] Then the two massage movements will collide with each other during the walking massage process, affecting the normal operation of the massage chair. Therefore, the applicant previously applied for a utility model patent with the authorization announcement number CN216933909U, which discloses an anti-collision monitoring and control device for a dual-movement massage chair. An anti-collision device is set on the massage movement. When the collision on one of the massage movements collides with the movement frame of the other massage movement, or the two collision parts come into contact first, the collision part triggers the switch by swinging or moving, and the two massage movements no longer move towards each other, but move in the opposite direction. However, this type of dual-movement anti-collision normally closed switch for massage chairs has poor versatility and is not compatible with a variety of movements, resulting in the need to set different anti-collision switches for different movements. Utility Model Content
[0004] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a dual-movement anti-collision normally closed switch specially designed for massage chairs, which adopts a universal anti-collision device built into the track, and realizes anti-collision and reversing when replacing different movements, avoiding the need to set different anti-collision switches on different movements, greatly saving the types of anti-collision switches and the matching settings of different movements.
[0005] The technical solution of the present utility model is as follows: a dual-movement anti-collision normally closed switch specially used for massage chairs, comprising a shell, a collision block, a moving contact piece and a static contact piece, wherein one end of the collision block is located in the shell and slides relative to the shell, the moving contact piece is arranged on the collision block and slides synchronously with the collision block, and the static contact piece is fixedly arranged in the shell, and when the collision block collides and slides relative to the shell, the moving contact piece can be separated from the static contact piece, a reset piece for driving the collision block to slide outward is provided in the shell, so as to drive the moving contact piece to contact the static contact piece, and also includes a limiting structure for limiting the collision block from being separated from the shell when the collision block is reset outward.
[0006] By adopting the above technical solution, when the two massage movements move toward each other, the massage chair-specific dual-movement anti-collision normally closed switch on one of the massage movements touches the other massage movement, or after the massage chair-specific dual-movement anti-collision normally closed switches on the two massage movements touch each other, the collision block will slide into the shell, so that the moving contact piece and the static contact piece are separated, and the switch is disconnected. The two massage movements will no longer move toward each other, but move in the opposite direction. The reset part will reset the collision block to the outside of the shell, and the moving contact piece will contact the static contact piece again, and the switch will be closed. One end of the shell is installed on the shaft end of the massage movement, and the other end is placed on the guide rail. As the massage movement moves, this switch is highly practical and suitable for massage movements with different structures, effectively saving costs.
[0007] The present invention is further configured as follows: a mounting cavity is provided on the shell, two static contact pieces are provided and are arranged relative to each other in the mounting cavity, the collision block is located between the two static contact pieces and slides relative to the static contact pieces, the dynamic contact piece includes a connecting portion and two contact portions that contact the static contact piece, the two contact portions are respectively located on both sides of the connecting portion, and the connecting portion is sleeved outside the collision block.
[0008] The above further configuration facilitates the installation between the moving contact piece and the collision block, making the structure between the moving contact piece and the collision block stable. When the collision block slides, it can drive the moving contact piece to slide synchronously to drive the contact between the moving contact piece and the static contact piece.
[0009] The present invention is further provided with: the limiting structure includes a limiting block provided on the collision block and a positioning block provided on the inner side wall of the installation cavity; the limiting block is slidably provided in the installation cavity; two positioning blocks are provided, and are respectively provided on the side wall of the installation cavity close to one end of the collision block; the two positioning blocks are separated and formed into a sliding groove for the collision block to slide; the limiting block is located on the inner side of the two positioning blocks, and when the reset member resets the collision block, the positioning block limits the limiting block from leaving the installation cavity.
[0010] With the above-mentioned further arrangement, when the collision block is reset to the outside of the shell under the reset force of the reset member, the collision block is prevented from separating from the shell, which facilitates the next sliding. The limit block will be blocked by the two positioning blocks and can no longer slide out of the shell. The contact part of the moving contact piece is provided on the limit block. After the collision block slides out of the shell, the moving contact piece is pressed onto the static contact piece by the limit block, and fits tightly with the static contact piece, so that the contact between the moving contact piece and the static contact piece is stable.
[0011] The present invention is further configured as follows: the shell includes an upper shell and a lower shell, the lower shell is provided with the installation cavity, the installation cavity is provided with a positioning groove, the upper shell is provided with a pressure block, the static contact piece is arranged in a "U" shape, the lower end of the static contact piece is inserted into the positioning groove, and the pressure block is pressed on the upper end of the static contact piece.
[0012] With the above further arrangement, the static contact piece is pressed into the positioning groove by the pressing block of the upper shell, so that the static contact piece structure is stable and will not be affected by the sliding of the collision block. The shell is split to facilitate the disassembly and assembly of internal components.
[0013] The present invention is further provided with an extension piece integrally provided on the static contact piece, a wire connected to an external switch is connected to the extension piece, and a through slot for the wire to extend out is provided on the housing.
[0014] By adopting the above-mentioned further setting, the wire is connected to the external switch, and the contact status between the static contact piece and the moving contact piece can be output to control the reverse movement of the massage movement. The extension piece is arranged at the end of the static contact piece away from the moving contact piece. The structural layout is reasonable and does not affect the sliding of the moving contact piece.
[0015] The present invention is further configured as follows: the reset member is configured by a reset spring, a mounting groove is provided on the side wall of the mounting cavity, a positioning cavity is provided on the collision block, one end of the reset spring abuts against the mounting groove, and the other end is located in the positioning cavity.
[0016] By adopting the above-mentioned further arrangement, the reset spring structure is stabilized, the collision block is better driven to reset, and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the utility model;
[0018] Figure 2 It is an exploded view of a specific embodiment of the utility model;
[0019] Figure 3 This is a schematic diagram of the lower shell and the collision block of a specific embodiment of the utility model;
[0020] Figure 4 This is a schematic diagram of a collision block and a moving contact piece according to a specific embodiment of the present utility model;
[0021] Figure 5 This is a schematic diagram of the lower shell of a specific embodiment of the utility model;
[0022] Figure 6 This is a schematic diagram of the inner side of the upper shell of a specific embodiment of the present utility model.
[0023] In the figure, 1. shell; 11. mounting cavity; 111. positioning groove; 112. mounting groove; 12. upper shell; 121. pressure block; 13. lower shell; 14. through groove; 2. collision block; 21. positioning cavity; 3. moving contact piece; 31. connecting part; 32. contact part; 4. static contact piece; 41. extension piece; 5. reset part; 61. limit block; 62. positioning block; 7. slide groove; 8. wire. DETAILED DESCRIPTION
[0024] The following will clearly and completely describe the technical solutions in this embodiment with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.
[0025] It should be noted that in the description of this utility model, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0026] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being described. In the description of this utility model, "several" means at least two, such as two or three, unless otherwise specifically defined.
[0027] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that technical personnel in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.
[0028] like Figure 1-6As shown, a dual-movement anti-collision normally closed switch for massage chairs includes a shell 1, a collision block 2, a dynamic contact piece 3 and a static contact piece 4. One end of the collision block 2 is located in the shell 1 and slides relative to the shell 1. The dynamic contact piece 3 is provided on the collision block 2 and slides synchronously with the collision block 2. The static contact piece 4 is fixed in the shell 1. When the collision block 2 collides and slides relative to the shell 1, the dynamic contact piece 3 can be separated from the static contact piece 4. A reset member 5 for driving the collision block 2 to slide outward is provided in the shell 1 to drive the dynamic contact piece 3 to contact the static contact piece 4. It also includes a limiting structure for limiting the collision block 2 from separating from the shell 1 when the collision block 2 is reset outward. When the two massage movements move toward each other, When the double-movement anti-collision normally closed switch for massage chairs on one massage movement touches another massage movement, or when the double-movement anti-collision normally closed switches for massage chairs on two massage movements touch each other, the collision block 2 will slide into the shell 1, so that the moving contact piece 3 and the static contact piece 4 are separated, the switch is disconnected, and the two massage movements will no longer move toward each other, but move in the opposite direction. The reset part 5 resets the collision block 2 to the outside of the shell 1, and the moving contact piece 3 contacts the static contact piece 4 again, and the switch is closed. One end of the shell 1 is installed on the shaft end of the massage movement, and the other end is placed on the guide rail. As the massage movement moves, this anti-collision normally closed switch is highly practical and suitable for massage movements of different structures, effectively saving costs.
[0029] The housing 1 is provided with a mounting cavity 11, and two static contacts 4 are provided and arranged relatively in the mounting cavity 11. The collision block 2 is located between the two static contacts 4 and slides relative to the static contact 4. The dynamic contact 3 includes a connecting portion 31 and two contact portions 32 that contact the static contact 4. The two contact portions 32 are respectively located on both sides of the connecting portion 31. The connecting portion 31 is sleeved on the outside of the collision block 2 to facilitate the installation between the dynamic contact 3 and the collision block 2. The dynamic contact can be directly sleeved on the collision block without the need for tools for installation or processing on the collision block, so that the structure between the dynamic contact 3 and the collision block 2 is stable. When the collision block 2 slides, it can drive the dynamic contact 3 to slide synchronously to drive the contact between the dynamic contact 3 and the static contact 4.
[0030] The limiting structure includes a limiting block 61 provided on the collision block 2 and a positioning block 62 provided on the inner wall of the installation cavity 11. The limiting block 61 is slidably provided in the installation cavity 11. There are two positioning blocks 62, which are respectively provided on the side wall of the installation cavity 11 close to one end of the collision block 2. The two positioning blocks 62 are separated and set to form a slide groove 7 for the collision block 2 to slide. The width of the slide groove 7 is smaller than the width of the limiting block 61. The limiting block 61 is located on the inner side of the two positioning blocks 62, and when the reset member 5 resets the collision block 2, the positioning block 6 The limiting block 61 is limited to be separated from the mounting cavity 11. When the collision block 2 is reset to the outside of the housing 1 under the reset force of the reset member 5, the collision block 2 is prevented from being separated from the housing 1, which facilitates the next sliding. The limiting block 61 will be blocked by the two positioning blocks 62 and thus cannot slide out of the housing 1. The contact portion 32 of the movable contact piece 3 is provided on the limiting block 61. After the collision block 2 slides out of the housing 1, the movable contact piece 3 is pressed onto the static contact piece 4 by the limiting block 61, and fits tightly with the static contact piece 4, so that the contact between the movable contact piece 3 and the static contact piece 4 is stable.
[0031] The housing 1 includes an upper shell 12 and a lower shell 13. The lower shell 13 is provided with the installation cavity 11. The installation cavity 11 is provided with a positioning groove 111. The upper shell 12 is provided with a pressing block 121. The static contact piece 4 is arranged in a "U" shape. The lower end of the static contact piece 4 is inserted into the positioning groove 111. The pressing block 121 is pressed on the upper end of the static contact piece 4. The static contact piece 4 is pressed into the positioning groove 111 by the pressing block 121 of the upper shell 12, so that the static contact piece 4 has a stable structure and will not be affected by the sliding of the collision block 2. Influence, the shell 1 is split, which is convenient for disassembly and assembly of internal components; the static contact piece 4 is integrally provided with an extension piece 41, and the extension piece 41 is connected to a wire 8 connected to an external switch. The shell 1 is provided with a through slot 14 for the wire 8 to extend out. The wire 8 is connected to the external switch, and the contact state between the static contact piece 4 and the dynamic contact piece 3 can be output to control the reverse movement of the massage movement. The extension piece 41 is arranged at the end of the static contact piece 4 away from the dynamic contact piece 3. The structural layout is reasonable and does not affect the sliding of the dynamic contact piece 3.
[0032] The reset member 5 is set by a reset spring, and a mounting groove 112 is provided on the side wall of the mounting cavity 11, and a positioning cavity 21 is provided on the collision block 2. One end of the reset spring is in contact with the mounting groove 112, and the other end is located in the positioning cavity 21. Of course, the reset member 5 can also be set by a spring plate, one end of the spring plate is in contact with the side wall of the mounting cavity 11, and the other end is in contact with the collision block 2, specifically with the limit block 61. The spring plate is set in a V shape, so that the reset spring structure is stable, better drives the collision block 2 to reset, and is easy to install.
Claims
1. A dual-movement anti-collision normally closed switch for massage chairs, characterized in that: The invention comprises a shell (1), a collision block (2), a movable contact piece (3) and a static contact piece (4), wherein one end of the collision block (2) is located in the shell (1) and slides relative to the shell (1), the movable contact piece (3) is arranged on the collision block (2) and slides synchronously with the collision block (2), and the static contact piece (4) is fixed in the shell (1). When the collision block (2) collides and slides relative to the shell (1), the movable contact piece (3) can be separated from the static contact piece (4), and a reset piece (5) for driving the collision block (2) to slide outward is provided in the shell (1) to drive the movable contact piece (3) to contact the static contact piece (4), and also comprises a limiting structure for limiting the collision block (2) from separating from the shell (1) when the collision block (2) resets outward.
2. The dual-movement anti-collision normally closed switch for massage chairs according to claim 1, characterized in that: The housing (1) is provided with a mounting cavity (11), two static contact pieces (4) are provided and are arranged relative to each other in the mounting cavity (11), the collision block (2) is located between the two static contact pieces (4) and slides relative to the static contact piece (4), the movable contact piece (3) includes a connecting portion (31) and two contact portions (32) in contact with the static contact piece (4), the two contact portions (32) are respectively located on both sides of the connecting portion (31), and the connecting portion (31) is sleeved outside the collision block (2).
3. The dual-core anti-collision normally closed switch for massage chairs according to claim 2, characterized in that: The limiting structure includes a limiting block (61) provided on the collision block (2) and a positioning block (62) provided on the inner side wall of the installation cavity (11). The limiting block (61) is slidably provided in the installation cavity (11). Two positioning blocks (62) are provided and are respectively provided on the side wall of the installation cavity (11) close to one end of the collision block (2). The two positioning blocks (62) are spaced apart to form a slide groove (7) for the collision block (2) to slide. The limiting block (61) is located on the inner side of the two positioning blocks (62). When the reset member (5) resets the collision block (2), the positioning block (62) limits the limiting block (61) from leaving the installation cavity (11).
4. The dual-movement anti-collision normally closed switch for massage chairs according to claim 2 or 3, characterized in that: The housing (1) comprises an upper housing (12) and a lower housing (13); the lower housing (13) is provided with the mounting cavity (11); a positioning groove (111) is provided in the mounting cavity (11); a pressing block (121) is provided on the upper housing (12); the static contact piece (4) is arranged in a "U" shape; the lower end of the static contact piece (4) is inserted into the positioning groove (111); and the pressing block (121) is pressed against the upper end of the static contact piece (4).
5. The dual-core anti-collision normally closed switch for massage chairs according to claim 4, characterized in that: An extension piece (41) is integrally provided on the static contact piece (4), a wire (8) connected to an external switch is connected to the extension piece (41), and a through slot (14) for the wire (8) to extend is provided on the housing (1).
6. The dual-movement anti-collision normally closed switch for massage chairs according to claim 2 or 3, characterized in that: The reset member (5) is provided with a reset spring, a mounting groove (112) is provided on the side wall of the mounting cavity (11), a positioning cavity (21) is provided on the collision block (2), one end of the reset spring abuts against the mounting groove (112), and the other end is located in the positioning cavity (21).