Seat keel fixing device

Abstract

The present invention discloses a seat keel fixing device for fixing an annular seat keel. The seat keel fixing device comprises: a fixed base plate; a pair of clamps disposed on either side of the base plate along a first direction, the pair of clamps being capable of cooperating to clamp or release the seat keel along either side of the first direction; a first clamping block disposed on one side of the base plate along a second direction, the first clamping block being capable of abutting against the front side of the seat keel when the seat keel is clamped and fixed by the pair of clamps, thereby restricting movement of the seat keel toward the front; and a second clamping block disposed on the other side of the base plate along the second direction, the first clamping block being capable of abutting against the back side of the seat keel when the seat keel is clamped and fixed by the pair of clamps, thereby restricting movement of the seat keel toward the back side. The first direction and the second direction are non-parallel. The seat keel fixing device provided by the present invention is intended to reduce the burden of manual labor and improve production efficiency.

Description

Technical Field

[0001] The present invention relates to the field of seat production, and in particular to a seat keel fixing device. Background Art

[0002] When producing seats, a ring-shaped seat keel is generally produced through injection molding, sheet metal, casting and other processes, and then a seat cushion and a breathable net are added to the ring-shaped seat keel and nailed and sewn.

[0003] The subsequent operations on the seat keel are generally performed manually, that is, a person is required to fix the seat with hands or other parts of the human body while performing additional operations, which places a heavy burden on the person and is inefficient.

[0004] Therefore, the above problems need to be solved urgently. Summary of the Invention

[0005] The present invention provides a chair keel fixing device for fixing the chair keel, so as to reduce the burden of manual work and improve production efficiency.

[0006] In order to solve the above technical problems, the technical solution of the present invention is:

[0007] A seat keel fixing device is used to fix a ring-shaped seat keel, and the seat keel fixing device includes:

[0008] Base plate, fixed setting;

[0009] a pair of clamps, disposed on both sides of the base plate along a first direction, the pair of clamps being capable of cooperating to clamp or release both sides of the seat keel along the first direction;

[0010] a first clamping block, disposed on one side of the base plate along the second direction, the first clamping block being capable of abutting against a front surface of the seat keel when the seat keel is clamped and fixed by the pair of clamps, so as to restrict the seat keel from moving toward the front surface; and

[0011] a second clamping block, disposed on the other side of the base plate along the second direction, wherein the first clamping block can abut against the back surface of the seat keel when the seat keel is clamped and fixed by the pair of clamps, so as to limit the seat keel from moving toward the back surface;

[0012] The first direction and the second direction are arranged non-parallel.

[0013] Furthermore, the first direction is perpendicular to the second direction.

[0014] Furthermore, each of the clamps comprises:

[0015] a first clamping jaw connected to the base plate;

[0016] a second clamping jaw, hinged to the first clamping jaw; and

[0017] The coil spring is in contact between the second clamping jaw and the base plate, so that the second clamping jaw tends to move toward the first clamping jaw.

[0018] Furthermore, the seat keel fixing device further includes:

[0019] The driving mechanism is configured to drive a pair of second clamps to move toward each other to jointly form a clamp on the outer annular surface of the seat keel, or the driving mechanism is configured to drive a pair of second clamps to move away from each other to jointly form a support for the inner annular surface of the seat keel.

[0020] Furthermore, a pair of the clamps are hinged to the base plate, each of the clamps is fixedly connected to a first lever arm and a second lever arm extending toward the other clamp, and the driving mechanism includes:

[0021] The cylinder has a cylinder body fixed to the base plate, and an output shaft of the cylinder is hinged to the first lever arm and the second lever arm through a pair of connecting rods, so as to drive the pair of clamps to move toward or away from each other when the output shaft contracts and extends.

[0022] Furthermore, each of the clamps further comprises:

[0023] A shift rod is hinged to the second clamping jaw, and a stop pin is provided in the middle of the shift rod. The coil spring can apply a force to the shift rod through the second clamping jaw, so that the stop pin abuts against the side of the first clamping jaw facing the first clamping jaw, and forms a first gap between the first clamping jaw and the second clamping jaw. When the shift rod is moved to overcome the force, the stop pin can slide along the wall of the second clamping jaw, and form a second gap between the first clamping jaw and the second clamping jaw that is larger than the first gap.

[0024] Furthermore, the first clamping block and / or the second clamping block are connected to the base plate in an adjustable manner.

[0025] The present invention has the following advantages:

[0026] The seat keel fixing device provided by the present invention can replace manual labor and specifically clamp and fix the seat keel through a pair of clamps. Moreover, when the seat keel fixing device fixes the seat keel, the first clamping block and the second clamping block can respectively bear against the front and back sides of the seat keel, ensuring that the seat keel will not flip over or warp when a cushion or decorative net is added to the seat keel or when nailing, gluing, welding, and other operations are performed on the front and back sides of the seat keel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the seat keel fixing device of the present invention;

[0028] Figure 2 It is a schematic diagram of the matching structure of a pair of clamps in the present invention.

[0029] As shown in the figure:

[0030] 1. Base plate; 2. Clamp; 21. First clamping jaw; 22. Second clamping jaw; 23. Coil spring; 24. First lever arm; 25. Second lever arm; 26. Push rod; 27. Stop pin; 3. First clamping block; 4. Second clamping block; 5. Cylinder; 51. Cylinder body; 52. Output shaft; 100. Seat keel. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following detailed description of the specific embodiments of the present invention is given in conjunction with the accompanying drawings. It should be noted that the drawings of the present invention are all simplified and not in exact proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0032] See also Figure 1 and Figure 2 A seat keel fixing device shown is used to fix a ring-shaped seat keel 100 . The seat keel fixing device includes: a base plate 1 , a pair of clamps 2 , a first clamping block 3 and a second clamping block 4 . The base plate 1 is fixedly set on an external frame or building, etc., so that it has a fixed spatial position or a posture that can be determined after adjustment; a pair of clamps 2 are set on both sides of the base plate 1 along the first direction, and the pair of clamps 2 can cooperate to clamp or release the seat keel 100 on both sides along the first direction; the first clamping block 3 is set on one side of the base plate 1 along the second direction, and the first clamping block 3 can abut against the front side of the seat keel 100 when the seat keel 100 is clamped and fixed by the pair of clamps 2 to limit the movement of the seat keel 100 toward the front direction; the second clamping block 4 is set on the other side of the base plate 1 along the second direction, and the first clamping block 3 can abut against the back side of the seat keel 100 when the seat keel 100 is clamped and fixed by the pair of clamps 2 to limit the movement of the seat keel 100 toward the back direction; wherein, the first direction and the second direction are arranged non-parallel.

[0033] With the above structure, the seat keel fixing device can replace manual labor and specifically clamp and fix the seat keel 100 through a pair of clamps 2. Moreover, when the seat keel fixing device fixes the seat keel 100, the first clamping block 3 and the second clamping block 4 can respectively bear against the front and back sides of the seat keel 100, ensuring that the seat keel 100 will not flip over or warp when a seat cushion or decorative net is added to the seat keel 100 or when nailing, gluing, welding, etc. are performed on the front and back sides of the seat keel 100.

[0034] Preferably, the first direction is perpendicular to the second direction, so that the seat keel fixing device can securely fix the seat keel 100 . In this embodiment, the first direction and the second direction are the length and width directions of the base plate 1 .

[0035] In this embodiment, each clamp 2 includes a first clamping jaw 21, a second clamping jaw 22, and a coil spring 23. The first clamping jaw 21 is connected to the base plate 1; the second clamping jaw 22 is hinged to the first clamping jaw 21; and the coil spring 23 abuts between the second clamping jaw 22 and the base plate 1, causing the second clamping jaw 22 to move toward the first clamping jaw 21. Selecting different coil springs 23 can adjust the clamping force between the first and second clamping jaws 21, 22 to accommodate seat keels 100 of varying weights.

[0036] Furthermore, the seat keel fixing device also includes a driving mechanism, which is configured to drive a pair of clamps 2 to move toward each other to jointly form a clamp on the outer annular surface of the seat keel 100, or the driving mechanism is configured to drive a pair of clamps 2 to move back to back to jointly form a support for the inner annular surface of the seat keel 100.

[0037] Specifically, if Figure 2 As shown, a pair of clamps 2 are hinged to the base plate 1, and each clamp 2 is fixedly connected to a first lever arm 24 and a second lever arm 25 extending toward the other clamp 2. The driving mechanism includes a cylinder 5, a cylinder body 51 of the cylinder 5 is fixed to the base plate 1, and an output shaft 52 of the cylinder 5 is hinged to the first lever arm 24 and the second lever arm 25 through a pair of connecting rods, so that the pair of clamps 2 can be driven to move toward or away from each other when the output shaft 52 contracts and extends, thereby fixing the seat bone 100.

[0038] It is understandable that the outer annular surface and the inner annular surface are not limited to the outermost and innermost wall surfaces of the seat keel 100 , but may be any annular surface facing the outer side or the inner side of the seat keel 100 .

[0039] To facilitate manual unlocking, each of the clamps 2 also includes a lever 26, which is hinged to the second jaw 22. A stop pin 27 is provided in the middle of the lever 26. The coil spring 23 can apply a force to the lever 26 through the second jaw 22, so that the stop pin 27 abuts against the side of the first jaw 21 facing the first jaw 21, and forms a first gap between the first jaw 21 and the second jaw 22. When the lever 26 is moved to overcome the force, the stop pin 27 can slide along the wall of the second jaw 22, and form a second gap between the first jaw 21 and the second jaw 22 that is larger than the first gap, thereby manually releasing the seat keel 100.

[0040] Furthermore, the first clamping block 3 and / or the second clamping block 4 are adjustably connected to the base plate 1. For example, they can be adjusted along the second direction to be closer to each other, or adjusted to different clamping positions along the first direction, or the heights of the two extending out of the base plate 1 can be adjusted, etc., to adapt to seat keels 100 of different size structures.

[0041] In this embodiment, the first clamping block 3 and the second clamping block 4 can both be push rods, T-shaped limiting columns, etc., which are not specifically limited here.

[0042] Those skilled in the art may make various changes and modifications to the invention without departing from the spirit and scope of the invention. Thus, if these modifications and variations of the invention fall within the scope of the claims and their equivalents, the invention is intended to include these modifications and variations.

Claims

1. A seat keel fixing device for fixing an annular seat keel, characterized in that: The seat keel fixing device includes: Base plate, fixed setting; a pair of clamps, disposed on both sides of the base plate along a first direction, the pair of clamps being capable of cooperating to clamp or release both sides of the seat keel along the first direction; a first clamping block, disposed on one side of the base plate along the second direction, the first clamping block being capable of abutting against a front surface of the seat keel when the seat keel is clamped and fixed by the pair of clamps, so as to restrict the seat keel from moving toward the front surface; and a second clamping block, disposed on the other side of the base plate along the second direction, wherein the first clamping block can abut against the back surface of the seat keel when the seat keel is clamped and fixed by the pair of clamps, so as to limit the seat keel from moving toward the back surface; wherein the first direction and the second direction are arranged non-parallel; Each of the clamps comprises: a first clamping jaw connected to the base plate; a second clamping jaw, hinged to the first clamping jaw; a coil spring abutting between the second clamping jaw and the base plate so as to cause the second clamping jaw to move toward the first clamping jaw; and a shift lever hinged to the second clamping jaw, a stop pin being provided at a middle portion of the shift lever, the coil spring being capable of applying a force to the shift lever via the second clamping jaw, so that the stop pin abuts against a side of the first clamping jaw facing the second clamping jaw, thereby forming a first gap between the first clamping jaw and the second clamping jaw; and when the shift lever is moved to overcome the force, the stop pin is capable of sliding along a wall surface of the second clamping jaw, thereby forming a second gap between the first clamping jaw and the second clamping jaw, which is larger than the first gap; The seat keel fixing device also includes a driving mechanism, which is configured to drive a pair of second clamps to move toward each other to jointly form a clamp on the outer annular surface of the seat keel, or the driving mechanism is configured to drive a pair of second clamps to move back to back to jointly form a support for the inner annular surface of the seat keel.

2. The seat keel fixing device according to claim 1, characterized in that: The first direction is perpendicular to the second direction.

3. The seat keel fixing device according to claim 1, characterized in that: A pair of clamps are hinged to the base plate, and the first clamping jaw of each clamp is fixedly connected to a first force arm and a second force arm extending toward the other clamp, respectively. The driving mechanism includes: The cylinder body is fixed to the base plate, and the output shaft is hinged to the first lever arm and the second lever arm through a pair of connecting rods, so as to drive the second clamping jaws to move toward or away from each other when the output shaft is retracted or extended.

4. The seat keel fixing device according to claim 1, characterized in that: The first clamping block and / or the second clamping block are connected to the base plate in an adjustable manner.

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