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CN-224225134-U - Turnover seat backrest unlocking mechanism

CN224225134UCN 224225134 UCN224225134 UCN 224225134UCN-224225134-U

Abstract

The utility model belongs to the technical field of small-sized car seats, in particular to a turnover seat backrest unlocking mechanism which comprises a backrest, an unlocking blocking cover and a seat cushion framework, wherein the backrest is connected with the seat cushion framework, the seat cushion framework is connected with a seat cushion body, the unlocking blocking cover and a wire aligning bolt are arranged at one end of the seat cushion framework, a spring is fixedly arranged in the backrest and is positioned in a sliding key, and unfolding and folding locking states are considered when a person sits on a trolley, so that the movement of the trolley can be realized by pushing the backrest, and meanwhile convenience in a carrying process after the seat is folded is improved. Meanwhile, the sliding key is in threaded connection with the grooves of the backrest and the seat framework, and the sliding key boundary is used for positioning the grooves of the backrest and the seat framework, so that the positioning accuracy is improved, and the processing difficulty is reduced.

Inventors

  • WEI BAOYU
  • TANG SHUAI
  • XIN LEI
  • ZHANG KUN

Assignees

  • 上海龙创汽车设计股份有限公司

Dates

Publication Date
20260512
Application Date
20250611

Claims (10)

  1. 1. The turnover seat backrest unlocking mechanism is characterized by comprising an unlocking mechanism, wherein the unlocking mechanism comprises a backrest (1), an unlocking blocking cover (2) and a seat cushion framework (3), the backrest (1) is connected with the seat cushion framework (3), and the seat cushion framework (3) is connected with a seat cushion body (4); One end of the seat cushion framework (3) is provided with an unlocking blanking cover (2) and a wire bolt (5), a spring (6) is fixedly installed in the backrest (1), the spring (6) is located in a sliding key (7), a groove matched with the sliding key (7) is formed in the backrest (1), and the wire bolt (5) penetrates through the backrest (1), the seat cushion framework (3) and the spring (6) to be locked and fixed with the sliding key (7).
  2. 2. The turnover seat back unlocking mechanism of claim 1, wherein gaps are formed between the surfaces of the sliding keys (7) and the inner planes of the back rest (1) and the seat cushion framework (3).
  3. 3. The turnover seat backrest unlocking mechanism of claim 1, wherein a rubber pad (8) is fixedly arranged in the seat cushion framework (3), and the rubber pad (8) is abutted with the backrest (1).
  4. 4. The turnover seat backrest unlocking mechanism of claim 1, wherein the surface of the unlocking plug cover (2) is provided with clamping feet, and the unlocking plug cover (2) is connected with the seat cushion framework (3) through clamping connection.
  5. 5. The turnover seat back unlocking mechanism of claim 1, wherein the backrest (1) is arc-shaped, and the surface of the seat cushion body (4) is made of an anti-skid material.
  6. 6. The turnover seat back unlocking mechanism of claim 1, wherein the back rest (1) and the seat cushion framework (3) are integrally formed.
  7. 7. The turnover seat back unlocking mechanism of claim 1, wherein the backrest (1) is of a special-shaped structure, and a plurality of grooves with different depths are formed in one surface of the backrest (1).
  8. 8. The turnover seat back unlocking mechanism of claim 1, wherein the sliding key (7) is of a special-shaped structure, and a bulge is arranged on the sliding key (7).
  9. 9. The foldable seat back unlocking mechanism according to claim 1, wherein the backrest (1), the seat cushion framework (3) and the seat cushion body (4) are made of lightweight materials.
  10. 10. The turnover seat back unlocking mechanism of claim 1, wherein the flexible seat cushion is arranged on the top of the seat cushion body (4) through a magic tape, and the seat cushion on the seat cushion body (4) is inclined.

Description

Turnover seat backrest unlocking mechanism Technical Field The utility model relates to the technical field of small-sized car seats, in particular to a turnover seat backrest unlocking mechanism. Background The small-sized car seat is a movable seat with wheels, and the wheels are driven to move through driving equipment, so that a person on the seat is driven to move. The small-sized car seat has the advantages of small volume and light weight, and is convenient to use in cities. The conventional small scooter on the market is difficult to fold the backrest part and difficult to fix the posture of the seat after folding, so that the backrest receives thrust, and is easy to bend. For example, a person sits on a small scooter, and it is difficult for a rear person to push the scooter conveniently, and therefore, a foldable seat back unlocking mechanism has been proposed for the above-mentioned problems. Disclosure of utility model In order to overcome the defects in the prior art and solve at least one technical problem in the background art, the utility model provides a turnover seat back unlocking mechanism. The technical scheme includes that the turnover seat backrest unlocking mechanism comprises a backrest, an unlocking blocking cover and a seat cushion framework, wherein the backrest is connected with the seat cushion framework, the seat cushion framework is connected with a seat cushion body, the unlocking blocking cover and a wire matching bolt are arranged at one end of the seat cushion framework, a spring is fixedly arranged in the backrest, the spring is positioned in a sliding key, a groove matched with the sliding key is formed in the backrest, and the wire matching bolt penetrates through the backrest, the seat cushion framework and the spring to be locked and fixed with the sliding key. Further, a gap is formed between the surface of the sliding key and the inner plane of the backrest and the seat cushion framework hole. Further, a rubber cushion is fixedly arranged in the seat cushion framework, and the rubber cushion is abutted with the backrest. Further, the surface of unblock blanking cover is provided with the card foot, the unblock blanking cover passes through the joint and is connected with the seatpad skeleton. Further, the backrest is arc-shaped, and the surface of the seat cushion body is made of anti-skid materials. Furthermore, the backrest and the seat cushion framework are integrally formed. Furthermore, the backrest is of a special-shaped structure, and one face of the backrest is provided with a plurality of grooves with different depths. Further, the sliding key is of a special-shaped structure, and a protrusion is arranged on the sliding key. Furthermore, the backrest, the seat cushion framework and the seat cushion body are all made of lightweight materials. Further, a flexible seat cushion is arranged at the top of the seat cushion body through a magic tape, and the seat cushion on the seat cushion body is inclined. The utility model has the advantages that: 1. The folding seat has the folding function, and simultaneously takes the unfolding and folding locking states into consideration, so that when a person sits on the trolley, the backrest can be pushed to move the trolley, and meanwhile, the convenience of the folded seat in the carrying process is improved. Meanwhile, the sliding key is in threaded connection with the grooves of the backrest and the seat framework, and the sliding key boundary is used for positioning the grooves of the backrest and the seat framework, so that the positioning accuracy is improved, and the processing difficulty is reduced. And the compression characteristic of the spring is utilized, the unlocking blocking cover is pressed to drive the sliding key to compress the spring, the compression spring rebounds to drive the sliding key, and the locking and unlocking are completed by sliding the sliding key in the grooves of the backrest and the seat framework. 2. The sliding key has small gaps between the end plane of the sliding key and the planes in the holes of the backrest and the seat cushion framework, so that the sliding key is used for absorbing processing and assembling errors, the whole structure simplifies the number of parts, the structure is integrated into the model, and the installation quality is improved. The rubber pad is installed on the back, is in order to provide reaction force for the back unblock for simple structure. The unlocking blanking cover is installed on the seat framework through the clamping foot of the unlocking blanking cover, meanwhile, the sliding key is pressed, the whole structure is compact, the number of parts is small, and assembly errors are reduced. Drawings In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious t