Seat back magnetic power locking mechanism

Abstract

The application discloses a seat back magnetic power locking mechanism, which comprises an ecological interface assembly and a turnover valve, the ecological interface assembly is provided with a first magnet at the front end of the interface, the turnover valve comprises a first inclined wedge, a second inclined wedge, a valve front cover and a valve rear cover, the first inclined wedge and the second inclined wedge are arranged in a box body formed by the valve front cover and the valve rear cover; the bottom of the first inclined wedge is provided with a locking pin which can pass through the box body and be inserted into a locking hole on the seat back outer cover to realize locking; the second inclined wedge has magnetism, when the ecological interface assembly approaches the seat back outer cover, the second inclined wedge moves forward under the magnetic force of the first magnet, thereby pushing the first inclined wedge to move upward to realize unlocking, and the turnover valve is pushed by the ecological interface assembly to turn over. The magnetic force of the magnet can be used to realize unlocking, when the interface is not used, the valve is in a locking state, the passenger's fingers are prevented from being inserted into being clamped, and meanwhile, the seat back magnetic power locking mechanism does not occupy electric resources.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of traffic seat, in particular to a seat back magnetic power locking mechanism. BACKGROUND

[0002] Automobiles and airplanes are widely used in people's daily life, and seats are essential components of vehicles. In order to improve comfort and convenience, seat interfaces are developed. The interfaces used on seats can hang screens, hat hooks, mobile phone holders, charging terminals and other parts, greatly releasing space and meeting people's daily needs. However, passengers who mistakenly insert their fingers into the interface when the seat interface is not in use are often clamped, which is particularly dangerous for children. SUMMARY

[0003] In view of the defects of the prior art, the technical problem to be solved by the present application is to provide a seat back magnetic power locking mechanism that can be locked by magnetic power and prevent passengers from inserting their fingers into the interface and being clamped.

[0004] In order to solve the above technical problems, the present application adopts the following technical scheme: a seat back magnetic power locking mechanism, comprising an ecological interface assembly and a flip valve, the flip valve is hinged on the inner side of a seat back cover, the seat back cover is provided with a socket corresponding to the position of the flip valve, the ecological interface assembly is provided with a first magnet at the front end of the interface, the flip valve comprises a first wedge, a second wedge, a valve front cover and a valve rear cover, the first wedge and the second wedge are arranged in a box formed by the valve front cover and the valve rear cover; the bottom of the first wedge is provided with a locking pin that can pass through the box and be inserted into a locking hole on the seat back cover to lock; the second wedge has magnetism, when the ecological interface assembly approaches the seat back cover, the second wedge moves forward under the magnetic force of the first magnet, thereby pushing the first wedge to move upward to unlock, and then the ecological interface assembly pushes the flip valve to flip by passing through the socket; when the ecological interface assembly exits, the flip valve and the first wedge are reset by the reset spring.

[0005] Preferably, the seat back cover is used for fixedly installed on the back of the seat back, fully utilizing the space behind the seat.

[0006] Preferably, the valve front cover is provided with a long slot at the lower end, which cooperates with the cylindrical pin at the bottom of the first wedge to facilitate installation from the rear.

[0007] Preferably, the flip valve is hinged on the inner side of the seat back cover through a rotating shaft, and the reset spring provided at the hinge is a torsional spring, which provides sufficient counterforce to reset the flip valve after the ecological interface assembly is pulled out.

[0008] Preferably, the second inclined wedge is provided with grooves on the left and right sides, which are matched with the guide columns on the two sides of the valve rear cover, so that the movement track of the second inclined wedge is fixed under the action of the magnetic force, and the second inclined wedge moves forward and backward.

[0009] Preferably, the grooves on the two sides of the second inclined wedge are C-shaped grooves, which are simple in structure and convenient to process and manufacture.

[0010] Preferably, the second inclined wedge is embedded with a second magnet for providing magnetism.

[0011] Preferably, the first inclined wedge is provided with mounting holes on the two sides of the top for fixedly mounting return springs, so that the first inclined wedge is uniformly stressed, and the return springs provide sufficient elastic return for compression springs.

[0012] Preferably, the ecological interface assembly is formed by buckling an upper part and a lower part, the first magnet is embedded in the front end of the ecological interface assembly, and a limiting baffle is arranged in the middle and rear part of the ecological interface assembly for limiting after insertion.

[0013] The beneficial effects of the present application are: the interface is locked by using the turnover valve, the structure is simple, the occupied space is small, and the installation is convenient; the unlocking can be realized by using the magnetic force of the magnet, when the interface is not used, the valve is in the locked state, the fingers of the passenger are prevented from being clamped, and the electrical resources are not occupied. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present application;

[0015] Figure 2 It is an exploded view of the structure of the present application;

[0016] Figure 3 It is a side sectional view of the present application;

[0017] Figure 4 It is a locked state diagram of the turnover valve;

[0018] Figure 5 It is a turnover state diagram of the turnover valve (the ecological interface assembly is completely inserted and fixed);

[0019] In the figure: A-ecological interface assembly, B-turnover valve; 1-seat back cover, 2-valve front cover, 3-first inclined wedge, 4-second magnet, 5-second inclined wedge, 6-valve rear cover, 7-return spring, 8-rotary shaft. DETAILED DESCRIPTION

[0020] In order to better understand the improvements made by the present application over the prior art, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments.

[0021] As shown in Figure 1 A magnetic power locking mechanism for a seat backrest, mainly composed of an ecological interface assembly A and a flip valve B, the ecological interface assembly A is provided with a first magnet at the front end of the interface to provide magnetic power.

[0022] The ecological interface assembly A is composed of two parts, and the first magnet is embedded in the front end of the ecological interface assembly A. The middle and rear parts of the ecological interface assembly A are provided with a limiting baffle for limiting after insertion, so that the ecological interface assembly A reserves space for the opponent's tool, which can be used for installing parts such as screen, hat hook, mobile phone support and charging terminal.

[0023] The flip valve B is hinged to the inside of the seat backrest cover 1, and the seat backrest cover 1 is provided with a socket corresponding to the position of the flip valve B. The seat backrest cover 1 is used for fixed installation on the back of the seat backrest, which is limited to the seat backrest, but not necessarily a car seat, but also an airplane seat, etc. Make full use of the space behind the seat. The flip valve B is hinged to the inside of the seat backrest cover 1 through the rotating shaft 8, and the hinge is provided with a return spring 7, which is a rotating torsion spring, providing enough counterforce.

[0024] The flip valve B is mainly composed of a first inclined wedge 3, a second inclined wedge 5, a valve front cover 2 and a valve rear cover 6. The first inclined wedge 3 and the second inclined wedge 5 are placed in the box body formed by the valve front cover 2 and the valve rear cover 6. The bottom of the first inclined wedge 3 is provided with a locking pin 3a that can pass through the box body and be inserted into the lock hole 1a on the seat backrest cover 1 to lock. The lower end of the valve front cover 2 is provided with a long slot gap that cooperates with the bottom cylindrical pin of the first inclined wedge 3 to facilitate installation from the rear. The first inclined wedge 3 is installed in the valve front cover 2 from the rear to the front along the long slot gap.

[0025] The second inclined wedge 5 has magnetism, and the second inclined wedge 5 is preferably embedded with a second magnet 4 for providing magnetism. When the ecological interface assembly A approaches the seat backrest cover 1, the second inclined wedge 5 moves forward under the magnetic force of the first magnet, thereby pushing the first inclined wedge 3 to move upward to achieve unlocking, and then the ecological interface assembly A pushes the flip valve B to flip by passing through the socket.

[0026] When the ecological interface assembly A exits, the flip valve B and the first inclined wedge 3 are reset by the equipped return spring 7. Under the action of the return spring 7, the flip valve B flips back to the original position, and at the same time, the first inclined wedge 3 is subjected to the elastic counterforce at the top, so that the locking pin 3a reinserts into the lock hole 1a to lock, and the second inclined wedge 5 is pushed back to the original position by the first inclined wedge 3. In order to make the first inclined wedge 3 be subjected to elastic counterforce evenly, the top of the first inclined wedge 3 is provided with mounting holes for fixedly installing the return spring 7, and the return spring 7 is a compression spring for providing counterforce.

[0027] In order to make the second inclined wedge 5 move forward smoothly under the magnetic force of the first magnet, recesses matched with the guide posts on the two sides of the valve rear cover 6 are arranged on the left and right sides of the second inclined wedge 5 to guide the forward and backward movement. When being unlocked, the second inclined wedge 5 moves forward along the guide posts, and the recesses on the two sides of the second inclined wedge 5 are "C" grooves.

[0028] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A magnetic power locking mechanism for a seat backrest, comprising an ecological interface assembly (A) and a flip valve (B) hinged inside a seat backrest cover (1) having a socket corresponding to the position of the flip valve (B), characterized in that: The ecological interface assembly (A) has a first magnet at the front end of the interface. The flip-top valve (B) includes a first wedge (3), a second wedge (5), a valve front cover (2), and a valve rear cover (6). The first wedge (3) and the second wedge (5) are placed in a box formed by the valve front cover (2) and the valve rear cover (6). The bottom of the first wedge (3) is provided with a locking pin (3a) that can pass through the box and be inserted into the lock hole (1a) on the seat back cover (1) for locking. The second wedge (5) is magnetic. When the ecological interface assembly (A) approaches the seat back cover (1) from the outside, the second wedge (5) moves forward under the magnetic force of the first magnet, thereby pushing the first wedge (3) to move upward to unlock. Then, the ecological interface assembly (A) passes through the socket to push the flip-top valve (B) to flip. When the ecological interface assembly (A) is disengaged, the flip valve (B) and the first wedge (3) are reset by the equipped return spring (7).

2. The magnetic power locking mechanism for a seat backrest according to claim 1, characterized in that: The seat back cover (1) is used to be fixedly installed on the back of the seat back.

3. The magnetic power locking mechanism for a seat backrest according to claim 1, characterized in that: The lower end of the valve front cover (2) is provided with a long notch that cooperates with the bottom cylindrical pin of the first wedge (3) to facilitate insertion and installation from the rear.

4. The magnetic power locking mechanism for a seat backrest according to claim 1, characterized in that: The flip-up door (B) is hinged to the inside of the seat back cover (1) via a rotating shaft (8), and the return spring (7) provided at the hinge is a rotating torsion spring.

5. The magnetic power locking mechanism for a seat backrest according to claim 1, characterized in that: The second wedge (5) has grooves on its left and right sides that cooperate with the guide posts on both sides of the valve back cover (6) for forward and backward movement guidance.

6. The magnetic power locking mechanism for a seat backrest according to claim 5, characterized in that: The grooves on both sides of the second wedge (5) are "C" shaped grooves.

7. The magnetic power locking mechanism of claim 1, wherein: The second wedge (5) is fitted with a second magnet (4) to provide magnetism.

8. The magnetic power locking mechanism for a seat backrest according to claim 1, characterized in that: The first wedge (3) has mounting holes on both sides of its top for fixing a return spring (7), which is a compression spring.

9. The magnetic power locking mechanism for a seat backrest according to claim 1, characterized in that: The ecological interface assembly (A) is composed of two parts that are fastened together. The first magnet is embedded in the front end of the interface of the ecological interface assembly (A). A limiting baffle is provided in the middle and rear of the ecological interface assembly (A) to limit the insertion.

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