A high-strength butt metal fastener

Abstract

The utility model relates to the technical field of fasteners, and discloses a high-strength butt-jointed metal fastener, comprising a first movable block and a second movable block, both sides of the first movable block and the second movable block are fixedly connected to limiting frames, the middle parts of the two limiting frames are threadedly sleeved with threaded rods, the outer walls of the two threaded rods are threadedly sleeved on the middle parts of the first movable block and the second movable block near one end, the first movable block and the second movable block are provided with movable grooves on the opposite sides, and sleeve blocks are movably connected in the grooves of the two movable grooves, and then four tooth plates on one side of the first movable block are inserted into four slot holes on one side of the second movable block, the four tooth plates are clamped by four gears and four clamping blocks, and the distance between the first movable block and the second movable block can be adjusted by the four tooth plates, so that the two arc-shaped clamping plates are more closely fitted to the connection, and then the connection is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, and more specifically to a high-strength butt-jointed metal fastener. Background Art

[0002] Fasteners generally refer to the intermediate connecting parts connecting two components. In construction projects, they are mostly used to fix steel pipe scaffolding with an outer diameter of 48mm. Fasteners are divided into right-angle fasteners (cross fasteners and directional fasteners), rotating fasteners (movable fasteners and universal fasteners), butt fasteners (straight fasteners and direct fasteners), etc. The commonly used fasteners in China are made of cast iron. There are three types of fasteners: right-angle fasteners, butt fasteners, and rotating fasteners. They are packaged in woven bags, with 25 pieces per package. The weight of each should be 1.1KG (including bolts and nuts). Generally, the anti-rust treatment is done by dipping in red anti-rust paint. It is used in conjunction with the rack pipe. The production and procurement ratio of general fastener products is 8:1:1. That is to say, the proportion is 80% for right angles, 10% for butts, and 10% for rotation. There are many types of fasteners, mainly new fasteners, steel pipe scaffolding fasteners, cast steel fasteners, T-type building fasteners, concrete sleeper fasteners, wooden sleeper fasteners, rail fasteners, Vossloh fasteners, malleable cast iron fasteners, scaffolding fasteners, railway fasteners, steel plate stamping fasteners, butt fasteners, swivel fasteners, and right angle fasteners.

[0003] Scaffolds and support frames composed of fasteners and steel pipes erected for construction and bearing loads are collectively referred to as scaffolds. Fasteners are fastened with bolts. Multiple scaffold steel pipes need to be butt-jointed, but the existing butt-jointed metal fasteners have average strength and are inconvenient to disassemble and assemble, which affects their use. Therefore, the market urgently needs to develop a high-strength butt-jointed metal fastener to help people solve the existing problems. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a high-strength butt metal fastener to solve the problems existing in the above background technology.

[0005] The utility model provides the following technical solutions: a high-strength butt-jointed metal fastener, comprising a first movable block and a second movable block, both sides of the first movable block and the second movable block are fixedly connected to a limiting frame, the middle parts of the two limiting frames are threadedly sleeved with a threaded rod, the outer walls of the two threaded rods are threadedly sleeved near one end on the middle parts of the first movable block and the second movable block, the first movable block and the second movable block are provided with movable grooves on the opposite sides, sleeve blocks are movably connected in the grooves of the two movable grooves, one end of the outer walls of the two threaded rods is threadedly sleeved in the two sleeve blocks, and the opposite sides of the two sleeve blocks are fixedly connected with arc-shaped clamping plates;

[0006] Preferably, two tooth plates are fixedly connected to both sides of the first movable block, two slots are provided on both sides of the second movable block, and outer walls of the four tooth plates are movably inserted into the four slots.

[0007] Preferably, one side of the second movable block is fixedly connected with four fixed blocks, the middle parts of the four fixed blocks are movably plugged with first fixed pins, and the middle parts of the outer walls of the four first fixed pins are movably sleeved with gears.

[0008] Preferably, the four gears are located in the middle of the four fixed blocks and are rotatably connected, and the outer walls of the four gears are meshedly connected to one side of the four tooth plates.

[0009] Preferably, one side of the four fixing blocks is fixedly connected to a limiting block, and the middle parts of the four limiting blocks are movably plugged with a second fixing pin.

[0010] Preferably, a clamping block is movably sleeved in the middle of the outer wall of the four second fixing pins, one side of the four clamping blocks is fixedly connected to a support rod, the outer walls of the four support rods are fixedly sleeved with a return spring, one end of the four return springs is fixedly connected to one side of the second movable block, and the four clamping blocks are movably connected in the middle of the four limit blocks.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model, by setting a first movable block, two arc-shaped clamping plates are located on the inner sides of the first movable block and the second movable block. When in use, the two arc-shaped clamping plates are fitted to the connecting portion, and then the four tooth plates on one side of the first movable block are inserted into the four slots on one side of the second movable block, and the four tooth plates are clamped by four gears and four clamping blocks. The distance between the first movable block and the second movable block can be adjusted by the four tooth plates, so that the two arc-shaped clamping plates are more fitted to the connecting portion, and then the connecting portion is fixed.

[0013] 2. The utility model provides an arc-shaped splint, and a plurality of positioning pins are provided on the inner sides of the two arc-shaped splints. When the two arc-shaped splints are attached to the connection, the connection can be firmly fixed by the plurality of positioning pins. After the first movable block is connected to the second movable block, the two threaded rods are rotated so that the two threaded rods push the two arc-shaped splints to be fixed to the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is an exploded view of the tooth plate structure of the utility model.

[0016] Figure 3 This is a schematic diagram of the gear structure of the utility model.

[0017] Figure 4 This is a schematic diagram of the card block structure of the utility model.

[0018] The accompanying drawings are marked as follows: 1. first movable block; 2. limit frame; 3. threaded rod; 4. sleeve block; 5. arc-shaped clamping plate; 6. tooth plate; 7. second movable block; 8. slot hole; 9. fixed block; 10. limit block; 11. gear; 12. clamping block; 13. support rod; 14. return spring; 15. first fixing pin; 16. second fixing pin. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The high-strength butt metal fastener involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0020] The utility model provides a high-strength butt-jointed metal fastener, comprising a first movable block 1 and a second movable block 7, both sides of the first movable block 1 and the second movable block 7 are fixedly connected to a limiting frame 2, the middle parts of the two limiting frames 2 are threadedly sleeved with a threaded rod 3, the outer walls of the two threaded rods 3 are threadedly sleeved near one end on the middle parts of the first movable block 1 and the second movable block 7, the opposite sides of the first movable block 1 and the second movable block 7 are provided with movable grooves, the grooves of the two movable grooves are movably connected with sleeve blocks 4, one ends of the outer walls of the two threaded rods 3 are threadedly sleeved in the two sleeve blocks 4, and the opposite sides of the two sleeve blocks 4 are fixedly connected with an arc clamping plate 5.

[0021] By setting the first movable block 1, the two arc-shaped splints 5 are located on the inner sides of the first movable block 1 and the second movable block 7. When in use, the two arc-shaped splints 5 are fitted to the connection parts, and then the four tooth plates 6 on one side of the first movable block 1 are inserted into the four slots 8 on one side of the second movable block 7. The four tooth plates 6 are clamped by four gears 11 and four clamping blocks 12. The distance between the first movable block 1 and the second movable block 7 can be adjusted by the four tooth plates 6, so that the two arc-shaped splints 5 are more fitted to the connection, and then the connection is fixed.

[0022] Furthermore, two tooth plates 6 are fixedly connected to both sides of the first movable block 1 , and two slots 8 are provided on both sides of the second movable block 7 . The outer walls of the four tooth plates 6 are movably inserted into the four slots 8 .

[0023] By setting up an arc-shaped clamping plate 5, a plurality of positioning pins are provided on the inner sides of the two arc-shaped clamping plates 5. When the two arc-shaped clamping plates 5 are attached to the connection, the connection can be firmly fixed by the plurality of positioning pins. After the first movable block 1 is connected to the second movable block 7, the two threaded rods 3 are rotated so that the two threaded rods 3 push the two arc-shaped clamping plates 5 to be fixed to the connection.

[0024] Furthermore, four fixed blocks 9 are fixedly connected to one side of the second movable block 7 , the middle of the four fixed blocks 9 are movably inserted with first fixed pins 15 , and the middle of the outer walls of the four first fixed pins 15 are movably sleeved with gears 11 .

[0025] By setting the threaded rods 3, the outer walls of the two threaded rods 3 are threadedly sleeved on the middle parts of the two limit frames 2, and the outer walls of the two threaded rods 3 are threadedly sleeved on the middle parts of the first movable block 1 and the second movable block 7, the outer walls of the two threaded rods 3 are threadedly sleeved on the two sleeve blocks 4, the two sleeve blocks 4 are located on the inner sides of the first movable block 1 and the second movable block 7, the movement of the two sleeve blocks 4 is adjusted by rotating the two threaded rods 3, and the two arc-shaped clamping plates 5 are driven to move by the two sleeve blocks 4, so that the distance between the two arc-shaped clamping plates 5 can be adjusted, and then the connection at the joint is reinforced.

[0026] Furthermore, four gears 11 are located in the middle of the four fixing blocks 9 and are rotatably connected, and the outer walls of the four gears 11 are meshed and connected to one side of the four tooth plates 6 .

[0027] By setting the tooth plates 6, after the four tooth plates 6 are inserted into the four slots 8, the tail ends of the four tooth plates 6 are meshed and connected with the outer walls of the four gears 11, and the four gears 11 are rotated, so that the four tooth plates 6 are clamped by the gears 11, and then the first movable block 1 is connected with the second movable block 7.

[0028] Furthermore, one side of the four fixing blocks 9 is fixedly connected to the limiting blocks 10 , and the middle parts of the four limiting blocks 10 are movably plugged with second fixing pins 16 .

[0029] By setting the clamping block 12, one end of the four clamping blocks 12 is clamped with the outer wall of the four gears 11. When the four tooth plates 6 are inserted into the four slots 8, the four gears 11 are driven to rotate counterclockwise. Since one side of the four clamping blocks 12 is set at an angle, the gear 11 can rotate counterclockwise.

[0030] Furthermore, a clamping block 12 is movably sleeved in the middle of the outer wall of the four second fixing pins 16, one side of the four clamping blocks 12 is fixedly connected to a support rod 13, the outer walls of the four support rods 13 are fixedly sleeved with a return spring 14, one end of the four return springs 14 is fixedly connected to one side of the second movable block 7, and the four clamping blocks 12 are movably connected in the middle of the four limit blocks 10.

[0031] By setting the reset spring 14, when the first movable block 1 and the second movable block 7 need to be disassembled, the tail ends of the four clamping blocks 12 are pressed so that one end of the four clamping blocks 12 is away from the outer wall of the four gears 11, and then the tooth plate 6 can be pulled out of the slot 8. After the four clamping blocks 12 are loosened, the four reset springs 14 are used to reset the four clamping blocks 12, thereby facilitating the installation and disassembly speed of the staff.

[0032] The working principle of the utility model is as follows: the two arc-shaped splints 5 are located on the inner side of the first movable block 1 and the second movable block 7. When in use, the two arc-shaped splints 5 are fitted to the connection part, and then the four tooth plates 6 on one side of the first movable block 1 are inserted into the four slots 8 on one side of the second movable block 7. The four tooth plates 6 are clamped by four gears 11 and four clamping blocks 12. The distance between the first movable block 1 and the second movable block 7 can be adjusted by the four tooth plates 6, so that the two arc-shaped splints 5 are more fitted to the connection, and then the connection is fixed. The inner side of the two arc-shaped splints 5 is fixed to the connection part. A plurality of positioning pins are provided on both sides. When the two arc-shaped clamping plates 5 are fitted at the connection, the connection can be firmly fixed by the plurality of positioning pins. After the first movable block 1 is connected to the second movable block 7, the two threaded rods 3 are rotated so that the two threaded rods 3 push the two arc-shaped clamping plates 5 to be fixed at the connection. The outer walls of the two threaded rods 3 are threadedly sleeved on the middle parts of the two limit frames 2, and the outer walls of the two threaded rods 3 are threadedly sleeved on the middle parts of the first movable block 1 and the second movable block 7. The outer walls of the two threaded rods 3 are threadedly sleeved on the two sleeve blocks 4. The two sleeve blocks 4 are in position. On the inner side of the first movable block 1 and the second movable block 7, the two sleeve blocks 4 are rotated and adjusted to move by two threaded rods 3, and the two arc-shaped clamping plates 5 are driven to move by the two sleeve blocks 4, so that the distance between the two arc-shaped clamping plates 5 can be adjusted. After the four tooth plates 6 are inserted into the four slots 8, the tail ends of the four tooth plates 6 are meshed and connected with the outer walls of the four gears 11, and the four gears 11 are rotated, so that the four tooth plates 6 are clamped by the gears 11, and then the first movable block 1 is connected with the second movable block 7, and one end of the four clamping blocks 12 is clamped with the outer walls of the four gears 11. When the four tooth plates 6 are inserted into the four slot holes 8 and drive the four gears 11 to rotate counterclockwise, since one side of the four clamping blocks 12 is set at an angle, the gears 11 can rotate counterclockwise. When the first movable block 1 and the second movable block 7 need to be disassembled, the tail ends of the four clamping blocks 12 are pressed so that one end of the four clamping blocks 12 is away from the outer walls of the four gears 11, and the tooth plate 6 can be pulled out of the slot hole 8. After loosening the four clamping blocks 12, the four reset springs 14 reset the four clamping blocks 12, thereby facilitating the installation and disassembly speed of the staff.

[0033] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0034] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A high-strength butt-jointed metal fastener, comprising a first movable block (1) and a second movable block (7), characterized in that: Both sides of the first movable block (1) and the second movable block (7) are fixedly connected to the limiting frames (2); the middle parts of the two limiting frames (2) are threadedly sleeved with threaded rods (3); the outer walls of the two threaded rods (3) are threadedly sleeved near one end on the middle parts of the first movable block (1) and the second movable block (7); movable grooves are provided on the opposite sides of the first movable block (1) and the second movable block (7); sleeve blocks (4) are movably connected in the grooves of the two movable grooves; one end of the outer walls of the two threaded rods (3) is threadedly sleeved in the two sleeve blocks (4); and the opposite sides of the two sleeve blocks (4) are fixedly connected with arc-shaped clamping plates (5).

2. A high-strength butt metal fastener according to claim 1, characterized in that: Two tooth plates (6) are fixedly connected to both sides of the first movable block (1), two slot holes (8) are provided on both sides of the second movable block (7), and the outer walls of the four tooth plates (6) are movably inserted into the four slot holes (8).

3. A high-strength butt metal fastener according to claim 2, characterized in that: One side of the second movable block (7) is fixedly connected to four fixed blocks (9), the middle parts of the four fixed blocks (9) are all movably plugged with first fixed pins (15), and the middle parts of the outer walls of the four first fixed pins (15) are all movably sleeved with gears (11).

4. A high-strength butt metal fastener according to claim 3, characterized in that: The four gears (11) are located in the middle of the four fixed blocks (9) and are rotatably connected, and the outer walls of the four gears (11) are meshedly connected to one side of the four toothed plates (6).

5. A high-strength butt metal fastener according to claim 4, characterized in that: One side of the four fixed blocks (9) is fixedly connected to a limiting block (10), and the middle parts of the four limiting blocks (10) are movably plugged with a second fixing pin (16).

6. A high-strength butt metal fastener according to claim 5, characterized in that: A clamping block (12) is movably sleeved in the middle of the outer wall of the four second fixing pins (16); one side of the four clamping blocks (12) is fixedly connected to a support rod (13); the outer wall of the four support rods (13) is fixedly sleeved with a return spring (14); one end of the four return springs (14) is fixedly connected to one side of the second movable block (7); and the four clamping blocks (12) are movably connected in the middle of the four limit blocks (10).

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