Clamp for assembling armrest pawl assembly

Abstract

The clamp comprises a top plate and a first movable shaft, the first movable shaft is movably installed at the bottom end of the top plate, a rotating frame is fixedly installed on the surface of the first movable shaft, a first worm gear is installed on the surface of the first movable shaft below the rotating frame, and a second worm gear is installed on the surface of the first movable shaft below the rotating frame. A first worm gear is installed at one end of the rotating frame and fixedly connected with the first movable shaft, a first motor is installed at one end of the rotating frame, a first worm is installed at the output end of the first motor and meshed with the first worm gear, a supporting block is installed at the other end of the rotating frame, and a first electric push rod is installed at the bottom end of the supporting block. According to the utility model, the position of the pawl assembly can be conveniently and rapidly adjusted through circumferential rotation, the angle of the pawl assembly can be conveniently and rapidly adjusted through multi-direction rotation, the pawl assembly can be conveniently clamped and fixed in an external expansion manner and subjected to multi-stage adjustment, and the assembling convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp for assembling an armrest ratchet assembly. Background Art

[0002] The movable armrest of a car seat usually has an adjustable function to accommodate passengers of different heights and body shapes. Passengers can find the most comfortable and suitable posture by adjusting the height and position of the armrest according to their needs. This personalized design allows passengers to get better support during a long journey and reduce physical discomfort. The rotating part of the car seat armrest is mainly composed of a ratchet and a pawl. In order to better assemble the pawl assembly, a clamp for assembling the armrest pawl assembly is proposed.

[0003] For example, a positioning tool for an automobile armrest disclosed in the authorization announcement number CN217345197U includes a base, a positioning seat, a first positioning adjustment unit, a second positioning adjustment unit and a connecting rod, wherein the two ends of the connecting rod are respectively fixedly connected to the first positioning adjustment unit and the second positioning adjustment unit, the first positioning adjustment unit and the second positioning adjustment unit are symmetrical structures, the positioning seat is located above the base, the upper end surface of the positioning seat is adapted to the inner top wall of the automobile armrest, the middle part of the positioning seat is provided with a positioning seat through groove with a rectangular cross section, and the connecting rod is slidably arranged in the positioning seat through groove;

[0004] Although it realizes rapid positioning and adjustment of various specifications and models of automobile armrests by setting a symmetrical first positioning and adjustment unit and a second positioning and adjustment unit, the first positioning and adjustment unit has a front support member, a screw rod, a side displacement support member, a slide rod and a spring, which can improve production efficiency and reduce production costs;

[0005] However, the problem that the existing clamp is not conducive to convenient circular rotation adjustment of the pawl assembly position and convenient multi-directional rotation adjustment of the pawl assembly angle when in use, is not conducive to outward expansion clamping and multi-level adjustment of the pawl assembly, affecting the convenience of assembly. Utility Model Content

[0006] The purpose of the utility model is to provide a clamp for assembling an armrest pawl assembly, so as to solve the problem proposed in the above background technology that the clamp is not convenient for convenient circular rotation adjustment of the pawl assembly position and convenient multi-directional rotation adjustment of the pawl assembly angle, is not conducive to the outward expansion clamping and fixing of the pawl assembly and the multi-level adjustment of the pawl assembly, thus affecting the convenience of assembly.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamp for assembling an armrest pawl assembly, comprising a top plate and a first movable shaft, the bottom end of the top plate is movably mounted on the first movable shaft, the surface of the first movable shaft is fixedly mounted on a rotating frame, the surface of the first movable shaft below the rotating frame is mounted on a first worm gear, and the first worm gear is fixedly connected to the first movable shaft, one end of the rotating frame is mounted on a first motor, the output end of the first motor is mounted on a first worm gear, and the first worm gear and the first worm gear are meshed with each other, the other end of the rotating frame is mounted on a supporting block, the bottom end of the supporting block is mounted on a first electric push rod, the output end of the first electric push rod is mounted on a first push arm, the bottom end of the first push arm is mounted on a connecting block, the side wall of the connecting block is mounted on a second motor, the output end of the second motor is mounted on a second worm gear, and the interior of the connecting block is movably mounted with a rotating shaft.

[0008] Preferably, a second worm gear is mounted on one end of the rotating shaft, and the second worm gear is meshed with the second worm, and a rotating seat is mounted on the other end of the rotating shaft.

[0009] Preferably, a stepper motor is mounted on the inner wall of the rotating seat, and a transmission bevel gear is mounted on the output end of the stepper motor.

[0010] Preferably, a hinge shaft is movably installed inside the rotating seat on one side of the transmission bevel gear, a driven bevel gear is sleeved on the surface of the hinge shaft, and the driven bevel gear and the transmission bevel gear are meshed with each other.

[0011] Preferably, a hollow sleeve is installed at the bottom end of the hinge shaft, and a support seat is installed at the bottom end of the hollow sleeve.

[0012] Preferably, a second electric push rod is installed inside the hollow sleeve, a driving rod is installed at the output end of the second electric push rod, and the driving rod is movably connected to the support seat.

[0013] Preferably, three groups of clamping gears with equal spacing are installed at the bottom end of the support seat, and linkage shafts are installed at the center positions of the clamping gears, and the clamping gears are movably connected to the support seat through the linkage shafts.

[0014] Preferably, a clamping claw is installed at the bottom end of the clamping gear, and the clamping claw is fixedly connected to the clamping gear, and the driving rod and the clamping gear are meshed with each other.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the clamp not only realizes convenient circular rotation adjustment of the position of the pawl assembly and convenient multi-directional rotation adjustment of the angle of the pawl assembly, facilitates the outward expansion clamping and fixing of the pawl assembly and the multi-level adjustment of the pawl assembly, but also improves the convenience of assembly;

[0016] (1) The driving rod is driven downward by the second electric push rod, and the driving rod drives the clamping gear to rotate with the linkage shaft as the axis, and the clamping gear drives the clamping claw to rotate, so that the three groups of clamping claws rotate outward, so that the clamping claw clamps and fixes the ratchet assembly from the inside of the circular hole of the ratchet assembly, and the first electric push rod drives the first push arm to move upward, and the first push arm drives the ratchet assembly to move upward, and the first motor drives the first worm to rotate, and the first worm drives the first worm wheel to rotate, and the first worm wheel drives the rotating frame to rotate with the first movable shaft as the axis, and the rotating frame drives the ratchet assembly to rotate, and after rotating to the corresponding position, the first electric push rod is opened in the reverse direction to make the ratchet assembly descend and complete the assembly with the handrail, so as to realize the convenient circular rotation adjustment of the ratchet assembly position and facilitate the outward clamping and fixing of the ratchet assembly;

[0017] (2) The second motor drives the second worm to rotate, the second worm drives the second worm wheel to rotate, the second worm wheel drives the rotating shaft to rotate, the rotating shaft drives the rotating seat to rotate, and the rotating seat drives the pawl assembly to make longitudinal rotation adjustment. When the pawl assembly needs to be adjusted laterally, the stepper motor drives the transmission bevel gear to rotate, the transmission bevel gear drives the driven bevel gear to rotate, the driven bevel gear drives the articulated shaft to rotate, and the articulated shaft drives the pawl assembly to make circular rotation adjustment, thereby realizing convenient multi-directional rotation adjustment of the pawl assembly angle, facilitating multi-level adjustment of the pawl assembly, and improving the convenience of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the rotating seat of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the driving rod of the utility model;

[0021] Figure 4 This is a front view structural schematic diagram of the utility model;

[0022] Figure 5 It is a front view cross-sectional structural schematic diagram of the rotating seat of the utility model.

[0023] In the figure: 1, top plate; 2, first motor; 3, first movable shaft; 4, rotating frame; 5, support block; 6, first electric push rod; 7, second worm; 8, first push arm; 9, second motor; 10, connecting block; 11, first worm; 12, rotating seat; 13, first worm gear; 14, second worm gear; 15, hollow sleeve; 16, second electric push rod; 17, support seat; 18, driving rod; 19, clamping gear; 20, linkage shaft; 21, clamping claw; 22, articulated shaft; 23, rotating shaft; 24, stepping motor; 25, driving bevel gear; 26, driven bevel gear. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] See also Figure 1-5 , the utility model provides an embodiment: a fixture for assembling an armrest pawl assembly, comprising a top plate 1 and a first movable shaft 3, the first movable shaft 3 is movably mounted on the bottom end of the top plate 1, a rotating frame 4 is fixedly mounted on the surface of the first movable shaft 3, a first worm gear 13 is mounted on the surface of the first movable shaft 3 below the rotating frame 4, and the first worm gear 13 is fixedly connected to the first movable shaft 3, a first motor 2 is mounted on one end of the rotating frame 4, the first motor 2 plays a role of power drive, a first worm 11 is mounted on the output end of the first motor 2, and the first worm 11 and the first worm gear 13 are meshed with each other, a support block 5 is mounted on the other end of the rotating frame 4, a first electric push rod 6 is mounted on the bottom end of the support block 5, the first electric push rod 6 plays a role of power drive, a first push arm 8 is mounted on the output end of the first push arm 8, a connecting block 10 is mounted on the bottom end of the first push arm 8, a second motor 9 is mounted on the side wall of the connecting block 10, the second motor 9 plays a role of power drive, a second worm 7 is mounted on the output end of the second motor 9, and a rotating shaft 23 is movably mounted inside the connecting block 10;

[0026] First, the device is connected to an external controller and an external circuit, the circular hole of the pawl assembly to be assembled is placed outside the three groups of clamping claws 21, the second electric push rod 16 is opened by external control, and the driving rod 18 is driven by the second electric push rod 16 to move downward, and under the support of the support seat 17, the driving rod 18 and the clamping gear 19 are engaged with each other, and the driving rod 18 drives the clamping gear 19 to rotate with the linkage shaft 20 as the axis, and the clamping gear 19 drives the clamping claw 21 to rotate, so that the three groups of clamping claws 21 are rotated outward, so that the clamping claw 21 clamps and fixes the pawl assembly from the inside of the circular hole of the pawl assembly, and the first electric push rod 6 is opened by external control, and the second electric push rod 16 drives the driving rod 18 to move downward ... An electric push rod 6 drives the first push arm 8 to move upward, and the first push arm 8 drives the pawl assembly to move upward, and then the first motor 2 is turned on by external control, and the first motor 2 drives the first worm 11 to rotate. Under the mutual engagement of the first worm 11 and the first worm wheel 13, the first worm 11 drives the first worm wheel 13 to rotate, and the first worm wheel 13 drives the rotating frame 4 to rotate with the first movable shaft 3 as the axis, and the rotating frame 4 drives the pawl assembly to rotate. After rotating to the corresponding position, the first electric push rod 6 is opened in the reverse direction to make the pawl assembly descend and complete the assembly with the handrail, so as to realize the convenient circular rotation adjustment of the pawl assembly position and facilitate the outward expansion clamping and fixing of the pawl assembly;

[0027] A second worm gear 14 is mounted on one end of the rotating shaft 23, and the second worm gear 14 and the second worm 7 are meshed with each other, and a rotating seat 12 is mounted on the other end of the rotating shaft 23;

[0028] A stepper motor 24 is installed on the inner wall of the rotating seat 12, and the stepper motor 24 plays a role of power driving. A transmission bevel gear 25 is installed at the output end of the stepper motor 24. A hinge shaft 22 is movably installed inside the rotating seat 12 on one side of the transmission bevel gear 25. A driven bevel gear 26 is sleeved on the surface of the hinge shaft 22, and the driven bevel gear 26 and the transmission bevel gear 25 are meshed with each other.

[0029] A hollow sleeve 15 is installed at the bottom end of the hinge shaft 22, a support seat 17 is installed at the bottom end of the hollow sleeve 15, a second electric push rod 16 is installed inside the hollow sleeve 15, the second electric push rod 16 plays a role of power drive, a driving rod 18 is installed at the output end of the second electric push rod 16, and the driving rod 18 is movably connected to the support seat 17;

[0030] Three groups of equally spaced clamping gears 19 are installed at the bottom of the support seat 17, and a linkage shaft 20 is installed at the center of the clamping gear 19, and the clamping gear 19 is movably connected to the support seat 17 through the linkage shaft 20, and a clamping claw 21 is installed at the bottom of the clamping gear 19, and the clamping claw 21 is fixedly connected to the clamping gear 19, and the driving rod 18 and the clamping gear 19 are meshed with each other;

[0031] When it is desired to adjust the angle of the ratchet assembly by longitudinal rotation, the second motor 9 is turned on by external control, and the second motor 9 drives the second worm 7 to rotate. Under the mutual meshing of the second worm 7 and the second worm wheel 14, the second worm 7 drives the second worm wheel 14 to rotate, and the second worm wheel 14 drives the rotating shaft 23 to rotate, and the rotating seat 12 drives the ratchet assembly to make longitudinal rotation adjustment. When it is necessary to make a lateral rotation adjustment of the ratchet assembly, the stepper motor 24 is turned on by external control, and the stepper motor 24 drives the transmission bevel gear 25 to rotate. Under the mutual meshing of the transmission bevel gear 25 and the driven bevel gear 26, the transmission bevel gear 25 drives the driven bevel gear 26 to rotate, and the driven bevel gear 26 drives the articulated shaft 22 to rotate, and the articulated shaft 22 drives the ratchet assembly to make a circular rotation adjustment, thereby realizing convenient multi-directional rotation adjustment of the angle of the ratchet assembly, facilitating multi-level adjustment of the ratchet assembly, and improving the convenience of assembly.

[0032] Working principle: First, the second electric push rod 16 drives the driving rod 18 to move downward, and the driving rod 18 drives the clamping gear 19 to rotate with the linkage shaft 20 as the axis, and the clamping gear 19 drives the clamping claw 21 to rotate, so that the three groups of clamping claws 21 are rotated outward, so that the clamping claw 21 clamps and fixes the ratchet assembly from the inside of the circular hole of the ratchet assembly, and the first electric push rod 6 drives the first push arm 8 to move upward, and the first push arm 8 drives the ratchet assembly to move upward, and the first motor 2 drives the first worm 11 to rotate, and the first worm 11 drives the first worm wheel 13 to rotate, and the first worm wheel 13 drives the rotating frame 4 to rotate with the first movable shaft 3 as the axis, and the ratchet assembly is driven by the rotating frame 4 to rotate. After rotating to the corresponding position, the first electric push rod 6 opens in the opposite direction. The push rod 6 is used to lower the pawl assembly and complete the assembly with the armrest. When the angle of the pawl assembly is to be adjusted longitudinally, the second motor 9 drives the second worm 7 to rotate, the second worm 7 drives the second worm wheel 14 to rotate, the second worm wheel 14 drives the rotating shaft 23 to rotate, the rotating shaft 23 drives the rotating seat 12 to rotate, and the rotating seat 12 drives the pawl assembly to make longitudinal rotation adjustment. When the pawl assembly needs to be adjusted laterally, the stepping motor 24 drives the transmission bevel gear 25 to rotate, the transmission bevel gear 25 drives the driven bevel gear 26 to rotate, the driven bevel gear 26 drives the hinge shaft 22 to rotate, and the hinge shaft 22 drives the pawl assembly to make circular rotation adjustment to complete the use of the fixture for assembling the armrest pawl assembly.

[0033] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fixture for assembling an armrest pawl assembly, comprising a top plate (1) and a first movable shaft (3), characterized in that: A first movable shaft (3) is movably mounted at the bottom end of the top plate (1); a rotating frame (4) is fixedly mounted on the surface of the first movable shaft (3); a first worm gear (13) is mounted on the surface of the first movable shaft (3) below the rotating frame (4); and the first worm gear (13) is fixedly connected to the first movable shaft (3); a first motor (2) is mounted at one end of the rotating frame (4); a first worm (11) is mounted at the output end of the first motor (2); and the first worm gear (11) and the first worm gear (13) are connected to each other. The two rotating frames (4) are meshed with each other, a support block (5) is installed at the other end of the rotating frame (4), a first electric push rod (6) is installed at the bottom end of the support block (5), a first push arm (8) is installed at the output end of the first electric push rod (6), a connecting block (10) is installed at the bottom end of the first push arm (8), a second motor (9) is installed on the side wall of the connecting block (10), a second worm (7) is installed at the output end of the second motor (9), and a rotating shaft (23) is movably installed inside the connecting block (10).

2. The clamp for assembling the armrest pawl assembly according to claim 1, characterized in that: A second worm gear (14) is mounted on one end of the rotating shaft (23), and the second worm gear (14) and the second worm (7) are meshed with each other. A rotating seat (12) is mounted on the other end of the rotating shaft (23).

3. The clamp for assembling the armrest pawl assembly according to claim 2, characterized in that: A stepping motor (24) is installed on the inner wall of the rotating seat (12), and a transmission bevel gear (25) is installed on the output end of the stepping motor (24).

4. The clamp for assembling the armrest pawl assembly according to claim 3, characterized in that: A hinge shaft (22) is movably mounted inside the rotating seat (12) on one side of the transmission bevel gear (25), a driven bevel gear (26) is sleeved on the surface of the hinge shaft (22), and the driven bevel gear (26) and the transmission bevel gear (25) are meshed with each other.

5. The clamp for assembling the armrest pawl assembly according to claim 4, characterized in that: A hollow sleeve (15) is installed at the bottom end of the hinge shaft (22), and a support seat (17) is installed at the bottom end of the hollow sleeve (15).

6. The fixture for assembling the armrest pawl assembly according to claim 5, characterized in that: A second electric push rod (16) is installed inside the hollow sleeve (15), a driving rod (18) is installed at the output end of the second electric push rod (16), and the driving rod (18) is movably connected to the support seat (17).

7. The clamp for assembling the armrest pawl assembly according to claim 5, characterized in that: Three groups of clamping gears (19) with equal spacing are installed at the bottom end of the support seat (17), and a linkage shaft (20) is installed at the center position of each clamping gear (19), and the clamping gear (19) is movably connected to the support seat (17) through the linkage shaft (20).

8. The clamp for assembling the armrest pawl assembly according to claim 7, characterized in that: The bottom end of the clamping gear (19) is provided with a clamping claw (21), and the clamping claw (21) is fixedly connected to the clamping gear (19), and the driving rod (18) and the clamping gear (19) are meshed with each other.

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