A mechanical massage collapsible structure for a seat back

Abstract

This utility model relates to a mechanical massage collapsible structure for a seat back, comprising: a mechanical massage assembly mounted on a seat back frame, the mechanical massage assembly including: a mechanical massage track frame mounted on the seat back frame, and a mechanical massage drive mechanism mounted on the mechanical massage slide rail frame. The upper end of the mechanical massage track frame is mounted on the upper crossbeam of the seat back frame, and the lower end of the mechanical massage track frame is mounted on the lower crossbeam of the seat back via the mechanical massage collapsible structure assembly. The mechanical massage collapsible structure assembly includes: a support fixing plate, a locking tongue baffle, a return spring, a connecting rod, and a sliding hinge shaft. The advantages of this utility model are: the mechanical massage track frame can be quickly returned to its initial position through the mechanical massage collapsible structure assembly, and it is easy to manufacture and install, reducing the risk of failure due to structural complexity.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a mechanical massage collapsible structure for a seat back. Background Technology

[0002] With the increasing popularity of automobiles, people's demands for car comfort are also rising. More and more car seats are equipped with massage mechanisms to relieve driver and passenger fatigue and improve the riding experience. However, most existing car seat massage mechanisms do not consider safety in emergency situations. When a vehicle experiences an accidental collision or sudden braking, the body will move rapidly backward or forward, and the driver and passengers will be subjected to a large impact force. If the massage mechanism cannot collapse in time, its massage heads, massage brackets, and other components may cause secondary injuries to the driver and passengers, seriously threatening their lives. For example, Chinese patent CN219446802U discloses a rapid collapse device for a car massage seat. This device can realize the rapid return of the mechanical massage structure, but it has the following drawbacks: 1) In an emergency, this structure achieves the collapse of the massage mechanism through the overload of the airbag in the lower connecting mechanism. If the airbag leaks or fails to rupture properly, the collapse function will fail, and the reliability of this structure is relatively poor; 2) This structure uses airbags and other structures to achieve the collapse function, and the parts structure is relatively complex, making maintenance difficult and costly. Utility Model Content

[0003] In view of the above problems, the purpose of this utility model is to provide a simple, safe, reliable and responsive mechanical massage collapsible structure for seat backrests, so as to provide a safer and more reliable riding environment for drivers and passengers and overcome the shortcomings of the prior art.

[0004] This utility model provides a mechanical massage collapsible structure for a seat back, comprising: a mechanical massage assembly mounted on a seat back frame, the mechanical massage assembly including: a mechanical massage track frame mounted on the seat back frame, and a mechanical massage drive mechanism mounted on the mechanical massage slide rail frame. The improvement is that the upper end of the mechanical massage track frame is mounted on the upper crossbeam of the seat back frame, and the lower end of the mechanical massage track frame is mounted on the lower crossbeam of the seat back via the mechanical massage collapsible structure assembly. The mechanical massage collapsible structure assembly is used to quickly return the mechanical massage assembly to its initial position in an emergency collision. The mechanical massage collapsible structure assembly includes: a support fixing plate, a locking tongue baffle, a return spring, a connecting rod, and a sliding hinge shaft, the support fixing plate being fixedly connected to... On the lower crossbeam of the backrest, the support fixing plate has a strip-shaped hole and a hinge seat. The upper end of the connecting rod is fixedly connected to the lower end of the mechanical massage track frame, and the lower end of the connecting rod is fixedly connected to the sliding hinge shaft. The sliding hinge shaft is slidably connected in the strip-shaped hole. The tail end of the locking tongue baffle is hinged to the hinge seat, and the locking hook end of the locking tongue baffle is hooked on the sliding hinge shaft, placing the sliding hinge shaft at the front end of the strip-shaped hole. One end of the return spring is fixedly connected to the protrusion at the tail end of the locking tongue baffle, and the other end of the return spring is fixedly connected to the protrusion at the front end of the support fixing plate. When the mechanical massage assembly is impacted, the locking tongue baffle overcomes the elastic force of the return spring and lifts upward to separate from the sliding hinge shaft. The sliding hinge shaft moves along the strip-shaped hole to the rear end position, causing the mechanical massage track frame connected to the connecting rod to return to the initial position.

[0005] As a preferred embodiment of this utility model, the upper end of the mechanical massage track frame is hinged to the upper crossbeam of the backrest via two upper mounting brackets, and the lower horizontal tube of the track at the lower end of the mechanical massage track frame is fixedly connected to the upper ends of two connecting rods, the lower ends of the two connecting rods being fixedly connected to the sliding hinge shaft.

[0006] The beneficial effects of this utility model are as follows: the mechanical massage collapsible structure assembly can quickly return the mechanical massage track frame to its initial position, and it is easy to manufacture and install, reducing the risk of failure caused by the complexity of the structure; in addition, the mechanical massage collapsible structure assembly can be reused. When used for the second time, the locking tongue baffle only needs to be reattached to the sliding hinge shaft for reuse. Attached Figure Description

[0007] Figure 1 This is a schematic diagram showing the installation of the mechanical massage track frame, seat back frame, and mechanical massage collapsible structure assembly of this utility model.

[0008] Figure 2 This is an enlarged view of a partial installation of the mechanical massage track frame and seat back frame of this utility model.

[0009] Figure 3 This is a schematic diagram of the mechanical massage collapsible structure assembly of this utility model.

[0010] Figure 4 This is a partial schematic diagram of the mechanical massage collapsible structure assembly of this utility model.

[0011] Reference numerals in the attached drawings: 1. Seat back frame; 2. Mechanical massage track frame; 3. Upper back beam; 4. Mechanical massage collapsible structure assembly; 5. Support plate; 6. Locking tongue baffle; 7. Return spring; 8. Linkage rod; 9. Sliding hinge shaft; 10. Strip hole; 11. Hinge seat; 12. Lower track tube; 13. Upper mounting bracket. Detailed Implementation

[0012] See Figure 1-4 As shown, this embodiment provides a mechanical massage collapsible structure for a seat back, including: a mechanical massage assembly mounted on a seat back frame 1. The mechanical massage assembly includes: a mechanical massage track frame 2 mounted on the seat back frame 1, and a mechanical massage drive mechanism (not shown) mounted on the mechanical massage slide frame. The upper end of the mechanical massage track frame 2 is mounted on the upper crossbeam 3 of the seat back frame 1, and the lower end of the mechanical massage track frame 2 is mounted on the lower crossbeam of the seat back via a mechanical massage collapsible structure assembly 4. The mechanical massage collapsible structure assembly 4 is used to quickly return the mechanical massage assembly to its initial position in case of an emergency collision. The mechanical massage collapsible structure assembly 4 includes: a support fixing plate 5, a locking tongue baffle 6, a return spring 7, a connecting rod 8, and a sliding hinge 9. The support fixing plate 5 is fixedly connected to the lower crossbeam of the seat back, and the support fixing plate 5 is fixedly connected to the lower crossbeam of the seat back. The fixed plate 5 has a strip hole 10 and a hinge seat 11. The upper end of the connecting rod 8 is fixedly connected to the lower end of the mechanical massage track frame 2, and the lower end of the connecting rod 8 is fixedly connected to the sliding hinge shaft 9. The sliding hinge shaft 9 is slidably connected in the strip hole 10. The tail end of the locking tongue baffle 6 is hinged to the hinge seat 11. The locking hook end of the locking tongue baffle 6 is hooked on the sliding hinge shaft 9, so that the sliding hinge shaft 9 is at the front end of the strip hole 10 (close to one end of the mechanical massage track frame 2). One end of the return spring 7 is fixedly connected to the protrusion at the tail end of the locking tongue baffle 6, and the other end of the return spring 7 is fixedly connected to the front protrusion of the support fixed plate 5. When the mechanical massage assembly is impacted, the locking tongue baffle 6 overcomes the elastic force of the return spring 7 and lifts up to separate from the sliding hinge shaft 9. The sliding hinge shaft 9 moves along the strip hole 10 to the rear end position, so that the mechanical massage track frame 2 connected to the connecting rod 8 returns to the initial position.

[0013] Furthermore, in this embodiment, the upper end of the mechanical massage track frame 2 is hinged to the upper crossbeam 3 of the backrest via two upper mounting brackets 13, and the lower horizontal tube 12 of the track at the lower end of the mechanical massage track frame 2 is fixedly connected to the upper ends of two connecting rods 8, and the lower ends of the two connecting rods 8 are fixedly connected to the sliding hinge shaft 9.

[0014] Working principle: Under normal conditions, the return spring 7 in the mechanical massage collapsible structure assembly 4 is in a contracted state. The return spring 7 pulls the locking tongue baffle 6 to engage with the sliding hinge shaft 9, so that the sliding hinge shaft 9 is at the front end of the strip hole 10, thus maintaining the normal massage posture. When the mechanical massage assembly is subjected to a strong impact, the locking tongue baffle 6 overcomes the elastic force of the return spring 7 and lifts upward, causing the sliding hinge shaft 9 to move to the rear end of the strip hole 10. At the same time, the upper end of the mechanical massage track frame 2 rotates around the upper crossbeam 3 of the backrest, so that the mechanical massage track frame 2 drives the mechanical massage drive mechanism to retract backward as a whole, providing a larger safety space for the occupants.

[0015] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A mechanical massage collapse structure of a seat backrest comprising: A mechanical massage assembly mounted on a seat back frame, comprising: a mechanical massage track frame mounted on the seat back frame, and a mechanical massage drive mechanism mounted on the mechanical massage slide rail frame, characterized in that the upper end of the mechanical massage track frame is mounted on the upper crossbeam of the seat back frame, and the lower end of the mechanical massage track frame is mounted on the lower crossbeam of the seat back via a mechanical massage collapsible structure assembly, the mechanical massage collapsible structure assembly comprising: a support fixing plate, a locking tongue baffle, a return spring, a connecting rod, and a sliding hinge shaft, the support fixing plate being fixedly connected to the lower crossbeam of the seat back, the support fixing plate having a slotted hole and a hinge seat, and the upper end of the connecting rod... The lower end of the connecting rod is fixedly connected to the lower end of the mechanical massage track frame. The lower end of the connecting rod is fixedly connected to the sliding hinge shaft, which is slidably connected in the strip hole. The tail end of the locking tongue plate is hinged to the hinge seat. The locking hook end of the locking tongue plate is hooked on the sliding hinge shaft, placing the sliding hinge shaft at the front end of the strip hole. One end of the return spring is fixedly connected to the protrusion at the tail end of the locking tongue plate, and the other end of the return spring is fixedly connected to the protrusion at the front end of the support plate. When the mechanical massage assembly is impacted, the locking tongue plate overcomes the spring force of the return spring and lifts upward to separate from the sliding hinge shaft. The sliding hinge shaft moves to the rear end position of the strip hole, causing the mechanical massage track frame connected to the connecting rod to quickly return to its initial position.

2. The mechanical massage collapse structure of a seat back according to claim 1, wherein, The upper end of the mechanical massage track frame is hinged to the upper crossbeam of the backrest via two upper mounting brackets. The lower horizontal tube of the track at the lower end of the mechanical massage track frame is fixedly connected to the upper ends of two connecting rods, and the lower ends of the two connecting rods are fixedly connected to the sliding hinge shaft.

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