Stroke sensing structure of massager
By designing a dual stroke sensing device in a massage instrument, the dual insurance function of the massage movement is realized by using the electrical connection between shrapnel and metal wire, the motor reversal failure caused by the single-contact stroke switch in the prior art is solved, and the motor reversal failure caused by the single-contact stroke switch in the prior art is reduced. Production costs and simplify the circuit structure.
Patent Information
- Application Number
- CN202420106319.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-01-16
AI Technical Summary
Existing massage instruments set a single-contact stroke switch at the end of the massage track, which may cause the motor to overload when the motor reverses and fails, affecting the product life. The existing solutions require changing the track structure and adding multiple stroke switches to achieve dual safety. , but increases production costs and circuit complexity.
Design a structure including a bottom shell, a massage movement and a dual stroke sensing device. The stroke sensing device is composed of a fixed seat, a shrapnel and a metal wire. Two contacts are set with different spacings and are electrically connected by the shrapnel and the metal wire. Implement induction signals to ensure that the massage movement can detect position and move in reverse when moving, achieving a double-safe effect.
The dual-contact sensing function is realized to ensure that the massage movement can be effectively reversed during movement, avoid overloading of the motor, and do not need to change the bottom shell structure, reducing production costs and circuit complexity.
Smart Images
Figure CN222355009U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of massage instruments, in particular to a travel sensing structure of a massager. Background Art
[0002] Some existing massage instruments can provide a large massage range and realize rich massage functions by controlling the massage movement to move back and forth in the massage track. Usually, the motor in the massage movement drives the transmission gear to rotate, and the gear meshes with the rack in the massage track, thereby driving the massage movement to move. When the massage movement moves to the end of the massage track, the circuit board of the massage movement needs to control the motor to reverse, and for this purpose, a travel switch needs to be set at the end of the massage track.
[0003] Most of the current massage instruments have a single-contact travel switch at each end of the massage track. If one or even two travel switches fail, the motor will no longer reverse after the massage movement moves to the end of the massage track, causing the massage movement to continue to press against the end of the massage track and overload the motor, affecting the service life of the product. The current solution is to set two or more travel switches at each end of the massage track to achieve the purpose of double insurance, but the structure of the massage track needs to be changed to adapt to the installation of more travel switches. The manufacturer needs to re-open the mold, the production cost becomes higher, and the circuit connection structure will become more complicated. Utility Model Content
[0004] The purpose of the utility model is to provide a stroke sensing structure of a massager, which solves the problems existing in the prior art and can be applied to existing massage instruments to realize a double-contact stroke sensing function and achieve the purpose of double insurance.
[0005] In order to achieve the above purpose, the solution of the utility model is:
[0006] A stroke sensing structure of a massager, comprising a bottom shell, a massage movement and two stroke sensing devices; a massage track is arranged in the bottom shell; the massage movement performs reciprocating linear motion along the massage track; two stroke sensing devices are respectively arranged at two ends of the massage track; the stroke sensing device comprises a fixing seat, a spring and a metal wire; the fixing seat is relatively fixed to the bottom shell; the middle part of the spring is fixed in the fixing seat, and the two ends thereof extend outward and protrude from the surface of the fixing seat facing the massage movement; the two ends of the spring are respectively bent to form a first contact and a second contact, and the distance between the first contact and the massage movement is smaller than the distance between the second contact and the massage movement; the middle part of the metal wire is fixed in the fixing seat, and the two ends thereof extend toward the two ends of the spring and are bent to form a first spring and a second spring, and the first spring and the second spring are respectively arranged opposite to the first contact and the second contact; the middle parts of the spring and the metal wire are electrically connected to the circuit board of the massage movement.
[0007] Racks are arranged on both sides of the bottom shell, and a gear driven by a motor is arranged in the massage movement, and the gear is meshed with the racks.
[0008] The middle of the spring sheet is bent on both sides to form elastic parts, and the first contact and the second contact are respectively connected to the ends of the two elastic parts; two cylinders are arranged in the fixing seat; the two elastic parts are respectively matched on the sides of the two cylinders facing the massage movement.
[0009] Preferably, a through hole is provided in the cylinder, and the fixing seat is fastened in the bottom shell by screws passing through the through hole.
[0010] Notches are provided at both ends of the fixing seat to allow the first contact and the second contact to deform and move.
[0011] The side surface of the massage movement is provided with two protrusions which are arranged opposite to the first contact and the second contact. The protrusions abut and press the first contact and the second contact as the massage movement moves back and forth in a straight line.
[0012] After adopting the above technical solution, the utility model has the following technical effects:
[0013] The utility model installs a stroke sensing device at both ends of the bottom shell, and the stroke sensing device has a first contact and a second contact, which are two contacts with different spacings from the massage movement. When the massage movement contacts one of the contacts during reciprocating linear motion, the broken circuit between the spring piece and the metal wire can be turned on to generate a sensing signal, so that the circuit board of the massage movement can detect that the massage movement has moved into place, and then control the reverse movement of the massage movement; the stroke sensing device of the utility model has a double-contact sensing function, and when any contact contacts the massage movement, the corresponding circuit can be turned on to generate a signal, so as to achieve the purpose of double insurance, and the stroke sensing device only occupies one installation position, is universal with the existing stroke sensing switch, does not need to replace the mold of the bottom shell, and the cost can be controlled. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional diagram of a specific embodiment of the utility model;
[0015] Figure 2 A three-dimensional diagram of a travel sensing device according to a specific embodiment of the utility model;
[0016] Figure 3 A three-dimensional diagram of a massage movement according to a specific embodiment of the utility model;
[0017] Figure 4 A circuit diagram of a specific embodiment of the utility model;
[0018] Description of Figure Numbers:
[0019] 1- bottom shell; 11- massage track; 12- rack;
[0020] 2-massage movement; 21-gear; 22-bump;
[0021] 3-travel sensing device; 31-fixed seat; 311-cylinder; 312-through hole; 313-notch; 32-spring; 321-first contact; 322-second contact; 323-elastic part; 33-metal wire; 331-first spring; 332-second spring;
[0022] 4-Battery;
[0023] 5-Signal transmitter. DETAILED DESCRIPTION
[0024] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.
[0025] refer to Figures 1 to 4 As shown, the utility model discloses a stroke sensing structure of a massager, comprising a bottom shell 1, a massage movement 2 and two stroke sensing devices 3;
[0026] A massage track 11 is arranged in the bottom shell 1;
[0027] The massage movement 2 performs reciprocating linear motion along the massage track 11;
[0028] Two travel sensing devices 3 are respectively arranged at two ends of the massage track 11;
[0029] The travel sensing device 3 includes a fixing seat 31, a spring 32 and a metal wire 33;
[0030] The fixing seat 31 is relatively fixed to the bottom shell 1;
[0031] The middle part of the spring piece 32 is fixed in the fixing seat 31, and the two ends thereof extend outward and protrude from the surface of the fixing seat 31 facing the massage movement 2; the two ends of the spring piece 32 are bent to form a first contact 321 and a second contact 322 respectively. In the straight direction of the massage track 11, the distance between the first contact 321 and the massage movement 2 is smaller than the distance between the second contact 322 and the massage movement 2, that is, when the massage movement 2 moves, it will first contact with the first contact 321 and then contact with the second contact 322;
[0032] The middle part of the metal wire 33 is fixed in the fixing seat 31, and the two ends thereof extend toward the two ends of the spring sheet 32 and are bent to form a first spring 331 and a second spring 332. The first spring 331 and the second spring 332 are respectively arranged opposite to the first contact point 321 and the second contact point 322;
[0033] The middle parts of the shrapnel 32 and the metal wire 33 are electrically connected to the circuit board of the massage movement 2. When at least one of the first contact 321 and the first spring 331, and the second contact 322 and the second spring 332 come into contact, the open circuit between the shrapnel 32 and the metal wire 33 is turned on to generate an induction signal. The circuit board of the massage movement 2 detects that the massage movement 2 has moved to the end position of the massage track 11, and can then control the motor to reverse and achieve reverse movement.
[0034] Through the above scheme, the utility model installs a stroke sensing device 3 at both ends of the bottom shell 1, and the stroke sensing device 3 has a first contact 321 and a second contact 322, which are different from the massage movement 2 in spacing. When the massage movement 2 contacts one of the contacts during reciprocating linear motion, the circuit between the spring 32 and the metal wire 33 can be turned on to generate a sensing signal, so that the circuit board of the massage movement 2 can detect that the massage movement 2 has moved into place, and then control the massage movement 2 to move in the opposite direction; the stroke sensing device 3 of the utility model has a dual-contact sensing function, and any contact can turn on the corresponding circuit to generate a signal when it contacts the massage movement 2, so as to achieve the purpose of double insurance, and the stroke sensing device 3 only occupies one installation position, which is compatible with the existing stroke sensing switch, and there is no need to replace the mold of the bottom shell 1, so the cost can be controlled.
[0035] Specific embodiments of the present utility model are shown below.
[0036] Racks 12 are provided on both sides of the bottom shell 1 , and a gear 21 driven by a motor is provided in the massage movement 2 . The gear 21 meshes with the racks 12 to drive the massage movement 2 to perform reciprocating linear motion on the massage track 1 .
[0037] The two sides of the middle of the spring sheet 32 are bent to form an elastic part 323, and the first contact 321 and the second contact 322 are respectively connected to the ends of the two elastic parts 323; two cylinders 311 are arranged in the fixing seat 31; the two elastic parts 323 are respectively matched with the sides of the two cylinders 311 facing the massage movement 2. By providing the elastic part 323 and the cylinder 311, the first contact 321 and the second contact 322 are easier to reset after being squeezed by the massage movement 2, and the elasticity is maintained.
[0038] Furthermore, a through hole 312 is provided in the cylinder 311 , and the fixing seat 31 is fastened to the bottom shell 1 by screws passing through the through hole 312 .
[0039] The fixing seat 31 is a groove structure, and notches 313 are provided at both ends thereof to allow the first contact point 321 and the second contact point 322 to deform and move.
[0040] The side of the massage movement 2 is provided with two protrusions 22 which are arranged opposite to the first contact 321 and the second contact 322 . The protrusions 22 abut against and press the first contact 321 and the second contact 322 as the massage movement 2 moves back and forth in a straight line.
[0041] According to the working principle of the existing travel switch, the middle part of the spring 32 and the metal wire 33 can be directly connected to the circuit board of the massage movement 2 through wires to achieve wired connection; see Figure 4 The shrapnel 32 and the metal wire 33 can also be connected to the battery 4 and the signal transmitter 5 to form a loop. The signal transmitter 5 is wirelessly connected to the massage movement 2. There is a breakpoint K between the shrapnel 32 and the metal wire 33. When the massage movement 2 contacts the first contact 321 / the second contact 322, the breakpoint is connected, the battery 4 supplies power to the signal transmitter 5, and the signal transmitter 5 sends an induction signal indicating that the massage movement has moved into place.
[0042] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.
Claims
1. A travel sensing structure of a massager, characterized in that: It includes a bottom case, a massage movement and two travel sensing devices; A massage track is arranged in the bottom shell; The massage movement performs reciprocating linear motion along the massage track; Two travel sensing devices are respectively arranged at two ends of the massage track; The travel sensing device comprises a fixing seat, a spring and a metal wire; The fixing seat is relatively fixed to the bottom shell; the middle part of the spring sheet is fixed in the fixing seat, and the two ends thereof extend outward and protrude from the surface of the fixing seat facing the massage movement; The two ends of the spring are bent to form a first contact and a second contact respectively, and the distance between the first contact and the massage core is smaller than the distance between the second contact and the massage core; The middle part of the metal wire is fixed in the fixing seat, and the two ends of the metal wire extend toward the two ends of the spring sheet and are bent to form a first spring and a second spring, and the first spring and the second spring are respectively arranged opposite to the first contact point and the second contact point; The middle parts of the spring pieces and the metal wires are electrically connected to the circuit board of the massage movement.
2. The stroke sensing structure of the massager according to claim 1, characterized in that: Racks are arranged on both sides of the bottom shell, and a gear driven by a motor is arranged in the massage movement, and the gear is meshed with the racks.
3. The stroke sensing structure of the massager according to claim 1, characterized in that: The middle of the spring sheet is bent on both sides to form elastic parts, and the first contact and the second contact are respectively connected to the ends of the two elastic parts; two cylinders are arranged in the fixing seat; and the two elastic parts are respectively matched on the sides of the two cylinders facing the massage movement.
4. The stroke sensing structure of a massager as claimed in claim 3, characterized in that: A through hole is arranged in the cylinder, and the fixing seat is fastened in the bottom shell by screws passing through the through hole.
5. The stroke sensing structure of a massager as claimed in claim 1, characterized in that: Notches are provided at both ends of the fixing seat to allow the first contact and the second contact to deform and move.
6. The stroke sensing structure of a massager as claimed in claim 1, characterized in that: The side surface of the massage movement is provided with two protrusions which are arranged opposite to the first contact and the second contact. The protrusions abut and press the first contact and the second contact as the massage movement moves back and forth in a straight line.