Clamp

Abstract

The clamp comprises a base, the base is connected with a first supporting rod, the first supporting rod is connected with a first supporting frame, the first supporting frame comprises a first frame, a first reinforcing rod is arranged in the middle of the first frame, the first reinforcing rod is rotationally connected with the first supporting rod, and the first supporting frame is connected with a second supporting frame. The second supporting frame comprises a second frame, the first frame and the second frame are rotationally connected through a first connecting assembly, and the second frame is provided with at least one second supporting rod extending in the length direction of the second frame. The second supporting rod and the second frame assembly are connected through a second connecting assembly so that the second supporting rod can move in the width direction of the second frame, and the second supporting rod is provided with a detachable clamping assembly. The angle between the first frame and the second frame can be adjusted, and the position of the third supporting rod can be adjusted, so that the clamp can adapt to sofa frames or seat frames with different sizes and different backrest angles, and the universality of the clamp is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of furniture manufacturing, and more specifically, to a clamp. Background Art

[0002] When making sofas, chairs and other furniture from aluminum alloy profiles, different aluminum alloy profiles need to be welded and polished, and the workpieces to be processed need to be fixed with fixtures to ensure the processing accuracy. The existing fixtures generally correspond to the fixture models one by one. Furniture frames of different sizes and styles require different fixtures, and the versatility of the fixtures is low. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a clamp with high versatility.

[0004] The technical solution of the present invention is: a clamp comprises a base, the base is connected to a first support rod, the top of the first support rod is rotatably connected to a first support frame, the first support frame comprises a first frame, a first reinforcing rod is provided in the middle of the first frame, the first reinforcing rod is rotatably connected to the first support rod, the first support frame is connected to a second support frame, the second support frame comprises a second frame, the first frame and the second frame are connected by a first connecting assembly so that the first frame and the second frame can rotate relative to each other, the second frame is provided with at least one second support rod extending along the length direction of the second frame, the second support rod is connected to the second frame assembly by a second connecting assembly so that the second support rod can move along the width direction of the second frame, and the second support rod is installed with a detachable clamping assembly.

[0005] Furthermore, the first connecting assembly includes two first support plates connected to the first frame, a rotatable plug-in cylinder is provided between the first support plates, the second frame is provided with a plug-in column that can be inserted into the plug-in cylinder, a movable limiting plate is provided in the plug-in cylinder, and the plug-in column is inserted into the plug-in cylinder to drive the limiting plate to move to limit the rotation between the plug-in cylinder and the first support plate.

[0006] Furthermore, the outer wall of the plug-in tube is provided with a support member, and the support member includes two first plates extending in a horizontal direction and a second plate connecting the two first plates, and the space between the second plate and the outer wall of the plug-in tube constitutes a limiting space, and the first support plate is provided with a rotating rod which is rotatably connected to the second plate and extends into the limiting space.

[0007] Furthermore, one end of the rotating rod extending into the limit space is connected to a first clutch plate, and a side of the limit plate facing the side wall of the plug-in cylinder is provided with a driving rod that passes through the side wall of the plug-in cylinder and extends into the limit space, and one end of the driving rod extending into the limit space is connected to a second clutch plate, and movement of the limit plate drives movement of the driving rod and the second clutch plate, and the first clutch plate and the second clutch plate together limit the rotation of the plug-in cylinder.

[0008] Furthermore, a guide groove is provided at the bottom of the plug-in tube, a guide block embedded in the guide groove is provided at the bottom of the limit plate, and the drive rod sleeve is provided with a first spring, and two ends of the first spring are respectively in contact with the side wall of the plug-in tube and the limit plate.

[0009] Furthermore, the second connecting component includes a moving block, a moving groove is provided on the side in the width direction of the second frame, the moving block is embedded in the moving groove, an installation cavity is provided in the moving block, two clamping members that can move along the width direction of the second frame are provided in the installation cavity, two moving members that can move to both sides of the moving groove are provided in the installation cavity, the moving member is connected to a limit block that passes through the side wall of the installation cavity and extends to the moving groove, the side wall of the moving groove is provided with a plurality of equidistantly arranged locking blocks, and the clamping member drives the moving member to move so that the limit block is embedded between adjacent locking blocks.

[0010] Furthermore, the clamping member includes an L-shaped clamping portion and a moving portion connected to the clamping portion, the mounting cavity forms an opening at the top of the moving block, the clamping portion is placed outside the mounting cavity, the moving portion is placed in the mounting cavity and connected to the clamping portion through the opening, the clamping portion is provided with a driving portion, the driving portion is provided with a first guide bevel, and the moving member is provided with a second guide bevel that is in contact with the first guide bevel.

[0011] Furthermore, a guide rod is provided on the side wall of the installation cavity, and a clearance groove is provided on the movable member for inserting the guide rod. A baffle is provided on the end of the guide rod, and a second spring is provided in the clearance groove, and one end of the second spring abuts against the bottom of the clearance groove, and the other end abuts against the baffle.

[0012] Furthermore, the clamping assembly includes a first fixing plate, the third support rod is provided with a mounting hole, the first fixing plate is detachably connected to the third support rod by a fastener installed in the mounting hole, the first fixing plate is connected to a second fixing plate, the first fixing plate and the second fixing plate are perpendicular to each other, the second fixing plate is connected to a fixing rod extending along the length direction of the second frame, and the end of the fixing rod is provided with a clamping rod capable of moving along the thickness direction of the second frame.

[0013] Furthermore, a clamping tube is provided at the end of the fixing rod, the clamping rod passes through the clamping tube and is threadedly engaged with the clamping tube, and a protective pad is provided at one end of the clamping rod facing the first fixing plate.

[0014] In summary, the present invention has the following beneficial effects:

[0015] The angle between the first frame and the second frame can be adjusted through the first connecting component, and the position of the third support rod can be adjusted through the second connecting component, so that the clamp can adapt to sofa frames or seat frames of different sizes and different backrest angles, thereby improving the versatility of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 is a schematic structural diagram of a first connection component;

[0018] Figure 3 is a schematic structural diagram of a second connection component;

[0019] Figure 4 is a schematic structural diagram of a second connection component from another perspective;

[0020] Figure 5 is a schematic diagram of the structure of the clamping assembly;

[0021] Figure numerals: 100, first support frame; 110, first frame; 120, first reinforcing rod; 200, second support frame; 210, second frame; 220, second support rod; 221, moving groove; 222, blocking block; 300, first connecting assembly; 310, first support plate; 311, rotating rod; 312, first clutch plate; 320, plug-in column; 330, plug-in cylinder; 331, guide groove; 340, stopper; 341, driving rod; 342, second clutch plate; 343, guide block; 350, support member; 351, first plate body; 352, second plate body; 360, first spring; 40 0, second connecting component; 410, moving block; 420, clamping member; 421, moving part; 422, clamping part; 423, driving part; 424, first guide slope; 430, moving member; 431, clearance groove; 432, guide rod; 433, baffle; 434, second spring; 435, limit block; 436, second guide slope; 440, installation cavity; 500, clamping assembly; 510, first fixed plate; 511, fastener; 520, second fixed plate; 530, fixed rod; 540, clamping tube; 550, clamping rod; 551, protection pad; 600, base; 610, first support rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figures 1 to 5 The present embodiment discloses a clamp, including a base 600, the base 600 is connected to a first support rod 610, the top of the first support rod 610 is rotatably connected to a first support frame 100, the first support frame 100 includes a first frame 110, a first reinforcing rod 120 is provided in the middle of the first frame 110, the first reinforcing rod 120 is rotatably connected to the first support rod 610, the first support frame 100 is connected to a second support frame 200, the second support frame 200 includes a second frame 210, the first frame 110 and the second frame 210 are connected by a first connecting assembly 300 so that the first frame 110 and the second frame 210 can rotate relative to each other, the second frame 210 is provided with at least one second support rod 220 extending along the length direction of the second frame 210, the second support rod 220 and the second frame 210 assembly are connected by a second connecting assembly 400 so that the second support rod 220 can move along the width direction of the second frame 210, and the second support rod 220 is installed with a detachable clamping assembly 500. The first connecting component 300 can adjust the angle between the first frame 110 and the second frame 210, so that the clamp can adapt to sofa frames or chair frames with different backrest angles. At the same time, the second connecting member enables the second support rod 220 to move, so that the workpiece can adapt to sofa frames or chair frames of different sizes.

[0024] The first connection assembly 300 includes two first support plates 310 connected to the first frame 110, a rotatable plug-in barrel 330 is arranged between the first support plates 310, a plug-in column 320 that can be inserted into the plug-in barrel 330 is arranged on the second frame 210, a movable limit plate is arranged in the plug-in barrel 330, and the plug-in column 320 is inserted into the plug-in barrel 330 to drive the limit plate to move so as to limit the rotation between the plug-in barrel 330 and the first support plate 310. The outer wall of the plug-in barrel 330 is provided with a support member 350, and the support member 350 includes two first plates 351 extending in the horizontal direction and a second plate 352 connecting the two first plates 351, and the space between the second plate 352 and the outer wall of the plug-in barrel 330 constitutes a limit space, and the first support plate 310 is provided with a rotating rod 311 that is rotatably connected to the second plate 352 and extends into the limit space. The end of the rotating rod 311 extending into the limiting space is connected to the first clutch plate 312. The side of the limiting plate facing the side wall of the plug-in cylinder 330 is provided with a driving rod 341 that passes through the side wall of the plug-in cylinder 330 and extends into the limiting space. The end of the driving rod 341 extending into the limiting space is connected to the second clutch plate 342. The movement of the limiting plate drives the driving rod 341 to move and drives the second clutch plate 342 to move. The first clutch plate 312 and the second clutch plate 342 are combined to limit the rotation of the plug-in cylinder 330. The bottom of the plug-in cylinder 330 is provided with a guide groove 331, and the bottom of the limiting plate is provided with a guide block 343 embedded in the guide groove 331. The driving rod 341 is sleeved with a first spring 360, and the two ends of the first spring 360 are respectively in contact with the side wall of the plug-in cylinder 330 and the limiting plate. When the plug-in column 320 is not inserted into the plug-in cylinder 330, the plug-in cylinder 330 can rotate relative to the first support plate 310 to adjust the angle. When the plug-in column 320 is inserted into the plug-in cylinder 330, the plug-in column 320 pushes the two limit plates to move to both sides, so that the first clutch plate 312 and the second clutch plate 342 fit together. The friction force between the first clutch plate 312 and the second clutch plate 342 can limit the relative rotation of the plug-in cylinder 330, so that the second frame 210 is fixed at the angle of the plug-in cylinder 330 that has been adjusted in advance.

[0025] The second connecting component 400 includes a moving block 410, a moving groove 221 is provided on the side of the width direction of the second frame 210, the moving block 410 is embedded in the moving groove 221, an installation cavity 440 is provided in the moving block 410, two clamping members 420 that can move along the width direction of the second frame 210 are provided in the installation cavity 440, two moving members 430 that can move to both sides of the moving groove 221 are provided in the installation cavity 440, the moving member 430 is connected to a limit block 435 that passes through the side wall of the installation cavity 440 and extends to the moving groove 221, the side wall of the moving groove 221 is provided with a plurality of equidistantly arranged blocking blocks 222, and the clamping member 420 drives the moving member 430 to move so that the limit block 435 is embedded between adjacent blocking blocks 222. The clamping member 420 includes an L-shaped clamping portion 422 and a moving portion 421 connected to the clamping portion 422. The installation cavity 440 forms an opening at the top of the moving block 410. The clamping portion 422 is placed outside the installation cavity 440. The moving portion 421 is placed in the installation cavity 440 and connected to the clamping portion 422 through the opening. The clamping portion 422 is provided with a driving portion 423. The driving portion 423 is provided with a first guiding inclined surface 424. The moving member 430 is provided with a second guiding inclined surface 436 that is in contact with the first guiding inclined surface 424. The side wall of the installation cavity 440 is provided with a guide rod 432. The moving member 430 is provided with a clearance groove 431 for the guide rod 432 to be inserted. The end of the guide rod 432 is provided with a baffle 433. The clearance groove 431 is provided with a second spring 434. One end of the second spring 434 abuts against the bottom of the clearance groove 431, and the other end abuts against the baffle 433. When the third support rod is embedded between the two clamping members 420, the two clamping members 420 are opened, and the first guide bevel 424 cooperates with the second guide bevel 436 to drive the movement of the moving member 430, so that the driving block is stuck between the two adjacent locking blocks 222, thereby limiting the movement of the moving block 410, so that the position of the third support plate on the second frame 210 is fixed, and the moving block 410 can be moved by removing the third support plate when the position needs to be adjusted.

[0026] The clamping assembly 500 includes a first fixing plate 510, a third support rod is provided with a mounting hole, the first fixing plate 510 is detachably connected to the third support rod through a fastener 511 installed in the mounting hole, the first fixing plate 510 is connected to the second fixing plate 520, the first fixing plate 510 and the second fixing plate 520 are perpendicular to each other, the second fixing plate 520 is connected to a fixing rod 530 extending along the length direction of the second frame 210, and the end of the fixing rod 530 is provided with a clamping rod 550 that can move along the thickness direction of the second frame 210. A clamping cylinder 540 is provided at the end of the fixing rod 530, the clamping rod 550 passes through the clamping cylinder 540 and is threadedly matched with the clamping cylinder 540, and a protective pad 551 is provided at one end of the clamping rod 550 facing the first fixing plate 510. The protective pad 551 can be abutted against the workpiece by rotating the clamping rod 550, so as to fix the workpiece.

[0027] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A clamp, characterized in that: The invention comprises a base (600), wherein the base (600) is connected to a first support rod (610), the top of the first support rod (610) is rotatably connected to a first support frame (100), the first support frame (100) comprises a first frame, a first reinforcing rod (120) is arranged in the middle of the first frame, the first reinforcing rod (120) is rotatably connected to the first support rod (610), the first support frame (100) is connected to a second support frame (200), the second support frame (200) comprises a second frame (210), the first frame (110) and the second frame (210) are connected to each other. The first frame (110) and the second frame (210) are connected by a first connecting assembly (300) so that the first frame (110) and the second frame (210) can rotate relative to each other, and the second frame (210) is provided with at least one second support rod (220) extending along the length direction of the second frame (210), and the second support rod (220) and the second frame (210) assembly are connected by a second connecting assembly (400) so that the second support rod (220) can move along the width direction of the second frame (210), and the second support rod (220) is installed with a detachable clamping assembly (500).

2. A clamp according to claim 1, characterized in that: The first connection assembly (300) includes two first support plates (310) connected to the first frame (110), a rotatable plug-in cylinder (330) is arranged between the first support plates (310), the second frame (210) is provided with a plug-in column (320) which can be inserted into the plug-in cylinder (330), a movable limiting plate is arranged in the plug-in cylinder (330), and the plug-in column (320) is inserted into the plug-in cylinder (330) to drive the limiting plate to move so as to limit the rotation between the plug-in cylinder (330) and the first support plate (310).

3. A clamp according to claim 2, characterized in that: The outer wall of the plug-in cylinder (330) is provided with a support member (350), and the support member (350) includes two first plates (351) extending in a horizontal direction and a second plate (352) connecting the two first plates (351), and the space between the second plate (352) and the outer wall of the plug-in cylinder (330) constitutes a limiting space, and the first support plate (310) is provided with a rotating rod (311) which is rotatably connected to the second plate (352) and extends into the limiting space.

4. A clamp according to claim 3, characterized in that: One end of the rotating rod (311) extending into the limiting space is connected to a first clutch plate (312); one side of the limiting plate facing the side wall of the plug-in cylinder (330) is provided with a driving rod (341) passing through the side wall of the plug-in cylinder (330) and extending into the limiting space; one end of the driving rod (341) extending into the limiting space is connected to a second clutch plate (342); movement of the limiting plate drives movement of the driving rod (341) and the second clutch plate (342); the first clutch plate (312) and the second clutch plate (342) are combined to limit the rotation of the plug-in cylinder (330).

5. A clamp according to claim 4, characterized in that: A guide groove (331) is provided at the bottom of the plug-in cylinder (330), a guide block (343) embedded in the guide groove (331) is provided at the bottom of the limit plate, and a first spring (360) is sleeved on the driving rod (341), and two ends of the first spring (360) are respectively in contact with the side wall of the plug-in cylinder (330) and the limit plate.

6. A clamp according to claim 1, characterized in that: The second connecting assembly (400) comprises a moving block (410), a moving groove (221) is provided on the side of the second frame (210) in the width direction, the moving block (410) is embedded in the moving groove (221), a mounting cavity (440) is provided in the moving block (410), two clamping members (420) capable of moving along the width direction of the second frame (210) are provided in the mounting cavity (440), and two clamping members (420) capable of moving along the width direction of the second frame (210) are provided in the mounting cavity (440). A movable member (430) is capable of moving to both sides of the movable groove (221), the movable member (430) is connected to a limit block (435) extending through the side wall of the installation cavity (440) to the movable groove (221), the side wall of the movable groove (221) is provided with a plurality of equidistantly arranged blocking blocks (222), and the clamping member (420) drives the movable member (430) to move so that the limit block (435) is embedded between adjacent blocking blocks (222).

7. A clamp according to claim 6, characterized in that: The clamping member (420) includes an L-shaped clamping portion (422) and a moving portion (421) connected to the clamping portion (422); the mounting cavity (440) forms an opening at the top of the moving block (410); the clamping portion (422) is placed outside the mounting cavity (440); the moving portion (421) is placed in the mounting cavity (440) and connected to the clamping portion (422) through the opening; the clamping portion (422) is provided with a driving portion (423); the driving portion (423) is provided with a first guiding inclined surface (424); and the moving member (430) is provided with a second guiding inclined surface (436) that is in contact with the first guiding inclined surface (424).

8. A clamp according to claim 7, characterized in that: A guide rod (432) is provided on the side wall of the installation cavity (440), the movable member (430) is provided with a clearance groove (431) for the guide rod (432) to be inserted, a baffle (433) is provided at the end of the guide rod (432), a second spring (434) is provided in the clearance groove (431), one end of the second spring (434) is in contact with the bottom of the clearance groove (431), and the other end is in contact with the baffle (433).

9. A clamp according to claim 1, characterized in that: The clamping assembly (500) includes a first fixing plate (510), the third support rod is provided with a mounting hole, the first fixing plate (510) is detachably connected to the third support rod via a fastener (511) installed in the mounting hole, the first fixing plate (510) is connected to a second fixing plate (520), the first fixing plate (510) and the second fixing plate (520) are perpendicular to each other, the second fixing plate (520) is connected to a fixing rod (530) extending along the length direction of the second frame (210), and the end of the fixing rod (530) is provided with a clamping rod (550) that can move along the thickness direction of the second frame (210).

10. A clamp according to claim 9, characterized in that: A clamping tube (540) is provided at the end of the fixing rod (530), the clamping rod (550) passes through the clamping tube (540) and is threadedly engaged with the clamping tube (540), and a protective pad (551) is provided at one end of the clamping rod (550) facing the first fixing plate (510).

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