Length-adjustable steel pipe pole

Abstract

The utility model relates to the technical field of steel pipe structures, in particular to a length-adjustable steel pipe pole which comprises a supporting seat, a pair of extending plates are fixedly installed at the two ends of the supporting seat, a pair of fixing inserting holes are formed in each extending plate, bolts are inserted into the fixing inserting holes, and the extending plates are fixedly installed on the supporting seat. A pair of extension plates are fixedly mounted on the supporting seat, a pair of mounting holes is formed in each of the pair of extension plates, rollers are rotatably connected to the mounting holes, an outer-layer loop bar is fixedly mounted on the supporting seat, a plurality of positioning holes are formed in the outer-layer loop bar, and a sliding groove is formed in the outer-layer loop bar. According to the device, the supporting base can be moved to the corresponding position through the idler wheels according to needs, the idler wheels are detachably arranged, the idler wheels are detached after the supporting base reaches the corresponding position, the plug pins penetrate through the fixing insertion holes formed in the extension plates to be inserted into the ground, the supporting base can be fixed to the ground, and the stability of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe structures, in particular to a length-adjustable steel pipe rod. Background Art

[0002] Steel with a hollow cross-section whose length is much greater than the diameter or circumference. According to the cross-sectional shape, it is divided into round, square, rectangular and special-shaped steel pipes; according to the material, it is divided into carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes and composite steel pipes; according to the use, it is divided into steel pipes for pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.; according to the production process, it is divided into seamless steel pipes and welded steel pipes, among which seamless steel pipes are divided into hot rolling and cold rolling (drawing), and welded steel pipes are divided into straight seam welded steel pipes and spiral seam welded steel pipes. Steel pipes are not only used to transport fluids and powdered solids, exchange heat energy, and manufacture mechanical parts and containers, but also an economical steel material. Using steel pipes to manufacture building structure grids, pillars and mechanical supports can reduce weight, save 20-40% of metal, and realize factory-based mechanized construction. Using steel pipes to manufacture highway bridges can not only save steel and simplify construction, but also greatly reduce the area of ​​protective coating, saving investment and maintenance costs.

[0003] The Chinese patent with announcement number CN216290107U discloses a length-adjustable steel pipe rod, which includes a base, an inner tube and an outer tube. The top of the base is fixedly connected with the inner tube, the outer wall of the inner tube is wrapped with the outer tube, and the inside of both sides of the outer tube is provided with an adjustment structure. The utility model is provided with an adjustment structure, and the outer tube is raised upward by sliding the inner tube and the outer tube. At this time, the adjustment screw gradually slides along the inside of the slide groove. When the height of the outer tube reaches a suitable position, the tightening nut is tightened by the threaded structure of the adjustment screw and the fastening nut. As the fastening nut is tightened, the reinforcement sheet gradually clings to both sides of the inner tube. Since the contact area between the reinforcement sheet and the inner tube is large, as the fastening nut is tightened, the adjustment screw fixes the inner tube under the action of a large friction force, so that the height of the steel pipe rod can be adjusted and it is more firm, thereby realizing the length adjustment of the steel pipe rod.

[0004] Based on the above search and combined with the prior art, we found that:

[0005] The existing device tightens the fastening nut through the threaded structure of the adjusting screw and the fastening nut. As the fastening nut is tightened, the reinforcement plate gradually clings to the two sides of the inner tube. The tightening adjustment screw of the fastening nut fixes the inner tube under the action of a large friction force. However, the steel pipe rod needs to bear weight during use, and fixing it through internal friction may cause the steel pipe rod to slip, which may be dangerous during actual use due to unstable fixation. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes a length-adjustable steel pipe rod. The device is provided with a support seat, and a pair of extension plates are fixedly installed at both ends of the support seat. The pair of extension plates are rotatably connected to rollers, and the support seat can be moved to the corresponding position by the rollers as needed. The rollers are detachable. After reaching the corresponding position, the rollers are removed, and the pins are inserted into the ground through the fixed sockets provided on the extension plates, so that the support seat can be fixed to the ground to ensure the stability of the device. An outer sleeve rod is fixedly installed on the support seat. After the fixing is completed, the inner steel pipe slidably connected inside the outer sleeve rod can be adjusted as needed, and the rotating rod fixedly connected to the knob drives the gear to rotate by rotating the knob. The gear and a pair of toothed plates mesh with each other, and the knob is turned counterclockwise, and the gear drives the pair of toothed plates to move inward. A fixing column is fixedly installed on the toothed plate. At this time, the fixing column is retracted, and the position of the inner steel pipe can be adjusted inside the outer sleeve rod. When the inner steel pipe is adjusted to the corresponding position, the knob is turned clockwise, and the gear drives the pair of toothed plates to move outward. At this time, the fixing column extends outward, passes through the positioning hole and is clamped with it, so as to achieve the effect of fixing the inner steel pipe and the outer sleeve rod. The device can effectively fix the adjustable steel pipe rod by clamping, and it will not slip. When it needs to be adjusted again, it only needs to rotate the knob to release the fixed state, and it can be adjusted. It has the advantage of convenient operation.

[0007] The technical solution to achieve the purpose of the utility model is: a length-adjustable steel pipe rod, including a support seat, a pair of extension plates are fixedly installed at both ends of the support seat, a pair of extension plates are each provided with a pair of fixed sockets, a pair of the fixed sockets are each plugged with pins, a pair of extension plates are each provided with a pair of mounting holes, rollers are rotatably connected to the mounting holes, an outer sleeve rod is fixedly installed on the support seat, a plurality of positioning holes are provided on the outer sleeve rod, and a slide groove is provided on the outer sleeve rod.

[0008] In some embodiments, the inner layer steel pipe is slidably connected inside the outer sleeve rod, a connecting plate is fixedly installed at the bottom of the inner steel pipe, a pair of connecting blocks are fixedly installed at the bottom of the connecting plate, and a ring is fixedly connected to the other end of the pair of connecting blocks.

[0009] In some embodiments, a fixing column is slidably connected to the collar, a tooth plate is fixedly mounted on the other end of the fixing column, the size of the fixing column corresponds to the size of the positioning hole, and the tooth plate is arranged up and down.

[0010] In some embodiments, a mounting plate is fixedly installed below the connecting plate, a rotating rod is rotatably connected to the mounting plate, the rotating rod is slidably connected to the slide slot, a knob is fixedly installed at one end of the rotating rod, a gear is fixedly installed at the other end of the rotating rod, and the gear is meshed with the gear plate.

[0011] In some embodiments, the roller is detachable.

[0012] Compared with the prior art, the present invention has the following significant advantages:

[0013] First, the utility model aims at the existing device, in which the steel pipe rod needs to bear weight during use and is fixed by internal friction, which may cause the steel pipe rod to slip. In actual use, the unstable fixation may cause dangerous problems. The device is provided with a support seat, and a pair of extension plates are fixedly installed at both ends of the support seat. The pair of extension plates are rotatably connected to rollers, and the support seat can be moved to the corresponding position by the rollers as needed. The rollers are detachable. After reaching the corresponding position, the rollers are removed, and the pins are inserted into the ground through the fixed sockets on the extension plates, so that the support seat can be fixed to the ground to ensure the stability of the device. An outer sleeve rod is fixedly installed on the support seat. After the fixation is completed, the inner steel sleeve rod slidingly connected to the inner side of the outer sleeve rod can be adjusted as needed. The tube is rotated by rotating the knob, and the rotating rod fixedly connected to the knob drives the gear to rotate, and the gear and a pair of toothed plates mesh with each other. The knob is turned counterclockwise, and the gear drives the pair of toothed plates to move inward. A fixing column is fixedly installed on the toothed plate. At this time, the fixing column is retracted, and the position of the inner steel tube can be adjusted inside the outer sleeve rod. When the inner steel tube is adjusted to the corresponding position, the knob is turned clockwise, and the gear drives a pair of toothed plates to move outward. At this time, the fixing column extends outward, passes through the positioning hole and is clamped with it, so as to achieve the effect of fixing the inner steel tube and the outer sleeve rod. The device can effectively fix the adjustable steel tube rod by clamping, and it will not slip. When it needs to be adjusted again, it only needs to rotate the knob to release the fixed state, and it can be adjusted. It has the advantage of convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure from a first viewing angle provided in one embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall three-dimensional structure from a second viewing angle provided in one embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of the extension plate structure provided in one embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the outer sleeve rod structure provided in one embodiment of the utility model;

[0019] Figure 5This is a schematic diagram of the inner steel pipe structure provided in one embodiment of the utility model;

[0020] Figure 6 It is a schematic diagram of the structure of the connecting plate provided in one embodiment of the utility model;

[0021] Figure 7 It is a schematic diagram of the tooth plate structure provided in one embodiment of the utility model.

[0022] Explanation of the accompanying drawings: 1. Support seat; 2. Extension plate; 3. Fixed socket; 4. Pin; 5. Mounting hole; 6. Roller; 7. Outer sleeve rod; 8. Positioning hole; 9. Slide groove; 10. Inner steel pipe; 11. Connecting plate; 12. Connecting block; 13. Ring; 14. Fixed column; 15. Tooth plate; 16. Mounting plate; 17. Rotating rod; 18. Knob; 19. Gear. DETAILED DESCRIPTION

[0023] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. 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 scope of protection of the utility model.

[0024] The utility model provides a length-adjustable steel pipe rod through improvement. The technical solution of the utility model is:

[0025] like Figure 1-Figure 3 As shown, a length-adjustable steel pipe rod comprises a support seat 1, a pair of extension plates 2 are fixedly installed at both ends of the support seat 1, a pair of fixed sockets 3 are opened on the pair of extension plates 2, and pins 4 are inserted on the pair of fixed sockets 3, a pair of mounting holes 5 are opened on the pair of extension plates 2, and rollers 6 are rotatably connected to the mounting holes 5, an outer sleeve rod 7 is fixedly installed on the support seat 1, a plurality of positioning holes 8 are opened on the outer sleeve rod 7, a slide groove 9 is opened on the outer sleeve rod 7, and the roller 6 is detachably arranged. The device is provided with a support seat 1, a pair of extension plates 2 are fixedly installed at both ends of the support seat 1, and the pair of extension plates 2 are rotatably connected to the roller 6, and the support seat 1 can be moved to the corresponding position by the roller 6 as needed, and the roller 6 is detachably arranged. After reaching the corresponding position, the roller 6 is removed, and the pin 4 is inserted into the ground through the fixed sockets 3 opened on the extension plate 2, so that the support seat 1 can be fixed to the ground, thereby ensuring the stability of the device.

[0026] like Figure 1-Figure 7As shown, the inner layer steel pipe 10 is slidably connected inside the outer sleeve rod 7, and a connecting plate 11 is fixedly installed at the bottom of the inner layer steel pipe 10. A pair of connecting blocks 12 are fixedly installed at the bottom of the connecting plate 11, and a ring 13 is fixedly connected to the other end of the pair of connecting blocks 12. A fixing column 14 is slidably connected to the ring 13, and a tooth plate 15 is fixedly installed on the other end of the fixing column 14. The size of the fixing column 14 corresponds to the size of the positioning hole 8, and the position of the tooth plate 15 is arranged up and down. A mounting plate 16 is fixedly installed below the connecting plate 11, and a rotating rod 17 is rotatably connected to the mounting plate 16. The rotating rod 17 is slidably connected to the slide groove 9, and a knob 18 is fixedly installed at one end of the rotating rod 17, and a gear 19 is fixedly installed at the other end of the rotating rod 17. The gear 19 and the tooth plate 15 mesh with each other. The outer sleeve rod 7 is fixedly installed on the support seat 1. After the fixing is completed, the inner layer steel pipe 10 slidably connected inside the outer sleeve rod 7 can be adjusted as needed. By rotating the knob 18, the rotating rod 17 fixedly connected to the knob 18 drives the gear 19 to rotate, and the gear 19 and a pair of toothed plates 15 mesh with each other. By rotating the knob 18 counterclockwise, the gear 19 drives the pair of toothed plates 15 to move inward, and the fixing column 14 is fixedly installed on the toothed plates 15. At this time, the fixing column 14 is retracted, and the position of the inner steel pipe 10 can be adjusted inside the outer sleeve rod 7. When the inner steel pipe 10 is adjusted to the corresponding position, the knob 18 is rotated clockwise, and the gear 19 drives the pair of toothed plates 15 to move outward. At this time, the fixing column 14 extends outward, passes through the positioning hole 8 and is engaged with it, so as to achieve the effect of fixing the inner steel pipe 10 to the outer sleeve rod 7. The device can effectively fix the adjustable steel pipe rod by means of clamping, and will not slip. When it needs to be adjusted again, it only needs to rotate the knob 18 to release the fixed state, and it can be adjusted, which has the advantage of convenient operation.

[0027] The specific working method is as follows: the device is provided with a support seat 1, a pair of extension plates 2 are fixedly installed at both ends of the support seat 1, and the pair of extension plates 2 are rotatably connected to rollers 6. The support seat 1 can be moved to the corresponding position by the rollers 6 as needed. The rollers 6 are detachably arranged. After reaching the corresponding position, the rollers 6 are removed, and the latch 4 is inserted into the ground through the fixed socket 3 provided on the extension plate 2, so that the support seat 1 can be fixed to the ground to ensure the stability of the device. An outer sleeve rod 7 is fixedly installed on the support seat 1. After the fixing is completed, the inner steel pipe 10 slidably connected inside the outer sleeve rod 7 can be adjusted as needed. By rotating the knob 18, the rotating rod 17 fixedly connected to the knob 18 drives the gear 19 to rotate, and the gear 19 meshes with the pair of tooth plates 15 The gear 19 drives a pair of toothed plates 15 to move inward, and a fixing column 14 is fixedly installed on the toothed plates 15. At this time, the fixing column 14 is retracted, and the position of the inner steel pipe 10 can be adjusted inside the outer sleeve rod 7. When the inner steel pipe 10 is adjusted to the corresponding position, the knob 18 is turned clockwise, and the gear 19 drives a pair of toothed plates 15 to move outward. At this time, the fixing column 14 extends outward, passes through the positioning hole 8 and is engaged with it, so as to achieve the effect of fixing the inner steel pipe 10 to the outer sleeve rod 7. The device can effectively fix the adjustable steel pipe rod by means of engaging, and will not slip. When it needs to be adjusted again, it only needs to rotate the knob 18 to release the fixed state, and it can be adjusted, which has the advantage of convenient operation.

[0028] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A length-adjustable steel pipe rod, comprising a support seat (1), characterized in that: A pair of extension plates (2) are fixedly mounted at both ends of the support seat (1), a pair of fixed plug holes (3) are provided on the pair of extension plates (2), a plug pin (4) is inserted on the pair of fixed plug holes (3), a pair of mounting holes (5) are provided on the pair of extension plates (2), rollers (6) are rotatably connected to the mounting holes (5), an outer sleeve rod (7) is fixedly mounted on the support seat (1), a plurality of positioning holes (8) are provided on the outer sleeve rod (7), and a slide groove (9) is provided on the outer sleeve rod (7).

2. The length-adjustable steel pipe rod according to claim 1, characterized in that: The inner layer steel pipe (10) is slidably connected inside the outer sleeve rod (7), a connecting plate (11) is fixedly installed at the bottom of the inner layer steel pipe (10), a pair of connecting blocks (12) are fixedly installed at the bottom of the connecting plate (11), and a ring (13) is fixedly connected to the other end of the pair of connecting blocks (12).

3. The length-adjustable steel pipe rod according to claim 2, characterized in that: A fixing column (14) is slidably connected to the collar (13), and a tooth plate (15) is fixedly installed on the other end of the fixing column (14). The size of the fixing column (14) corresponds to the size of the positioning hole (8), and the tooth plate (15) is arranged in an upper and lower position.

4. The length-adjustable steel pipe rod according to claim 2, characterized in that: A mounting plate (16) is fixedly mounted below the connecting plate (11), a rotating rod (17) is rotatably connected to the mounting plate (16), the rotating rod (17) is slidably connected to the slide groove (9), a knob (18) is fixedly mounted on one end of the rotating rod (17), a gear (19) is fixedly mounted on the other end of the rotating rod (17), and the gear (19) is meshed with the toothed plate (15).

5. The length-adjustable steel pipe rod according to claim 1, characterized in that: The roller (6) is detachably arranged.

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