Stepless locking device and seat armrest adopting same

Abstract

The utility model relates to the technical field of furniture, and discloses a stepless locking device and a seat armrest adopting the stepless locking device, the stepless locking device comprises a first locking plate, a second locking plate, a locking block fixing plate, a locking block, a locking block fixing piece, a fixing piece, a locking plate connecting block and a fastening piece, the stepless locking device is provided with a plurality of gears, and the gears can be adjusted by rotating the locking plate connecting block. The device can be applied to a seat armrest, and the armrest supporting angle can be flexibly adjusted. The stepless locking device provided by the utility model is simple in structure, easy to realize, high in reliability, long in service life, capable of adjusting the angle and automatically locking, and capable of providing reliable and comfortable support for the arm of a user when being used on the armrest.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a stepless locking device and a chair armrest using the device. Background Art

[0002] Currently, furniture seat armrests rarely provide the function of adjusting and locking the support angle, or the device that provides this function is complex in design and not convenient for mass production in the market. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides a stepless locking device and a seat armrest using the device, which has a simple structure and is easy to implement.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] A stepless locking device, comprising a first locking piece, a second locking piece, a locking block fixing piece, a locking block, a locking block fixing piece, a fixing piece, a locking piece connecting block and a fastener;

[0006] The first locking piece and the fixing piece are sleeved on the fastener, wherein the fixing piece is non-cylindrical and hollow, connecting the first locking piece and the locking block fixing piece, wherein the first locking piece can rotate around the fixing piece, and the locking block fixing piece is mutually locked with the fixing piece;

[0007] The locking block fixing plate is provided with a locking block groove, the locking block and the locking block fixing piece can be placed in the locking block groove, the area in the locking block groove where the locking block is placed can be used for the locking block to slide, and the tail end of the locking block fixing piece is arc-shaped and abuts against a plane of the locking block;

[0008] The first locking piece and the second locking piece are both provided with a locking limiting position and a locking piece connecting block clamping position. The locking limiting position cooperates with the locking block to lock the gear position, and the locking piece connecting block and the locking piece connecting block clamping position cooperate to be used.

[0009] Preferably, the length of the area in the locking block groove where the locking block is placed is a, the thickness of the locking block is b, and a>b.

[0010] Preferably, the surface where the locking limit position is located covers an arc of 55°.

[0011] Preferably, there are at least two locking limit positions, forming a stepped shape.

[0012] Preferably, there are 5 locking limit positions.

[0013] Furthermore, the utility model also discloses a seat armrest, which comprises the stepless locking device.

[0014] Preferably, the fastener is connected to a seat connector and an armrest on both sides respectively, the seat connector is sleeved on the fixing member, and the armrest is sleeved on the other side of the stepless locking device to cooperate with the locking plate connecting block.

[0015] The beneficial effects of the utility model are as follows: the stepless locking device provided by the utility model has a simple structure, is easy to implement, has high reliability, and has a long service life. It can adjust the angle and lock automatically, and can be used on the armrest to provide reliable and comfortable support for the user's arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall view of the stepless locking device.

[0017] Figure 2 An exploded view of the stepless locking device.

[0018] Figure 3 It is a front view of the stepless locking device.

[0019] Figure 4 It is a cross-sectional view of the AA plane of the front view of the stepless locking device.

[0020] Figure 5 The figure is a view showing the position of the locking block and the locking block fixing member in the locking block fixing plate.

[0021] Figure 6 This is an overall view of the handrail.

[0022] Figure 7 This is an exploded view of the handrail. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the utility model in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0024] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0025] In some embodiments of the present invention, Figure 1-5 As shown, the stepless locking device includes a first locking piece 1, a second locking piece 2, a locking block fixing piece 3, a locking block 4, a locking block fixing piece 5, a fixing piece 6, a locking piece connecting block 7 and a fastener 8.

[0026] The first locking piece 1 and the fixing piece 6 are sleeved on the fastener 8, wherein the fixing piece 6 is non-cylindrical and hollow, connecting the first locking piece 1 and the locking block fixing piece 3, the first locking piece 1 can rotate around the fixing piece 6, and the locking block fixing piece 3 is locked with the fixing piece 6.

[0027] The locking block fixing plate 3 is provided with a locking block groove 301, in which the locking block 4 and the locking block fixing piece 5 can be placed. The area in the locking block groove 301 where the locking block 4 is placed can be used for sliding of the locking block 4, and the rear end of the locking block fixing piece 5 is arc-shaped and abuts against a plane of the locking block 4.

[0028] The first locking piece 1 and the second locking piece 2 are both provided with a locking limit position 101 and a locking piece connecting block clamping position 102. The locking limit position 101 cooperates with the locking block 4 to lock the gear position, and the locking piece connecting block 7 and the locking piece connecting block clamping position 102 are used in conjunction with each other.

[0029] When the locking piece connecting block 7 is turned clockwise toward the second locking piece 2, the first locking piece 1 and the second locking piece 2 are turned together, and the locking piece 4 is pushed by the locking piece, and the side of the locking piece 4 that contacts the locking limit position 101 moves in the locking piece groove 301. When the locking limit position 101 is turned clockwise to the bottom, the stepless locking device is in the unlocked state; when the locking limit position 101 is turned counterclockwise, the locking piece 4 cooperates to rotate and locks the gear position through the locking limit position 101.

[0030] In some embodiments of the present invention, the length of the area in the locking block groove 301 where the locking block 4 is placed is a, the thickness of the locking block 4 is b, and a>b. The locking block 4 can move in the area.

[0031] In some embodiments of the present invention, the surface where the locking limit position 101 is located covers an arc of 55°, and there are 5 locking limit positions 101, forming a step-like shape. Facing the second locking piece 2, the locking limit position 101 is rotated 55° clockwise, and the stepless locking device is in the unlocked state, and the adjustable gear position is 5 gears.

[0032] In some embodiments of the present invention, Figure 6-7 As shown, the seat armrest includes the stepless locking device. The two sides of the fastener 8 are respectively connected to the seat connecting member 9 and the armrest 10, the seat connecting member 9 is sleeved on the fixing member 6, and the fixing member 6 is locked; the armrest 10 is sleeved on the other side of the stepless locking device and cooperates with the locking plate connecting block 7. When the armrest 10 rotates, the locking plate connecting block 7 will rotate together, thereby realizing the adjustment of the armrest support angle.

[0033] The above is a description of the embodiments of the utility model. Through the above description of the disclosed embodiments, professionals and technicians in the field can implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in the field. The general principles defined in this article can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown in this article, but will conform to the widest range consistent with the principles and novelties disclosed in this article.

Claims

1. A stepless locking device, characterized in that: The stepless locking device comprises a first locking plate (1), a second locking plate (2), a locking block fixing plate (3), a locking block (4), a locking block fixing member (5), a fixing member (6), a locking plate connecting block (7) and a fastener (8); The first locking piece (1) and the fixing piece (6) are sleeved on the fastener (8), wherein the fixing piece (6) is non-cylindrical and hollow, and connects the first locking piece (1) and the locking block fixing piece (3), wherein the first locking piece (1) can rotate around the fixing piece (6), and the locking block fixing piece (3) is locked with the fixing piece (6); The locking block fixing plate (3) is provided with a locking block groove (301), the locking block (4) and the locking block fixing piece (5) can be placed in the locking block groove (301), the area in the locking block groove (301) where the locking block (4) is placed can be used for the locking block (4) to slide, and the rear end of the locking block fixing piece (5) is arc-shaped and abuts against a plane of the locking block (4); The first locking piece (1) and the second locking piece (2) are both provided with a locking limit position (101) and a locking piece connecting block clamping position (102); the locking limit position (101) cooperates with the locking block (4) to form a locking position; the locking piece connecting block (7) and the locking piece connecting block clamping position (102) are used in cooperation.

2. A stepless locking device according to claim 1, characterized in that: The length of the area in the locking block groove (301) where the locking block (4) is placed is a, the thickness of the locking block (4) is b, and a>b.

3. A stepless locking device according to claim 1, characterized in that: The surface where the locking limit position (101) is located covers an arc of 55°.

4. A stepless locking device according to claim 1, characterized in that: There are at least two locking limit positions (101) forming a step shape.

5. A stepless locking device according to claim 4, characterized in that: There are five locking limit positions (101).

6. A chair armrest, characterized in that: The seat armrest comprises the stepless locking device according to any one of claims 1-5.

7. A chair armrest according to claim 6, characterized in that: The fastener (8) is respectively connected to a seat connection piece (9) and an armrest (10), the seat connection piece (9) is sleeved on the fixing piece (6), and the armrest (10) is sleeved on the other side of the stepless locking device and matched with the locking piece connection block (7).

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