Rectangular pipe fixing structure

Abstract

The utility model relates to a rectangular pipe fixing structure which comprises a bottom plate, two supporting rings are installed on the two sides, located in the length direction, of the upper surface of the bottom plate, a rotating disc is rotationally installed in the two supporting rings, a containing groove is formed in the rotating disc, and four cylinder bodies A are coaxially installed on the outer surface of the rotating disc in an array mode. A piston A is arranged in the cylinder A in a sealed mode, the outer surface of the piston A is connected with a guide rod A, and the end of the guide rod A penetrates into the containing groove and is provided with a pressing plate. An annular pipe is arranged on the outer side of the rotating disc, and four connecting pipes A are coaxially installed on the outer surface of the annular pipe in an array mode. Through the arrangement of the pneumatic mechanism, the four pressing plates can be driven to fix the four faces of the rectangular pipe at the same time, the stability of the rectangular pipe in the drilling operation is guaranteed, through the arrangement of the supporting ring and the rotating disc, the rectangular pipe can be driven to rotate, and therefore the rectangular pipe can be turned over in the machining process, the complexity and time consumption of operation are reduced, and the machining efficiency is improved. And the processing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rectangular tube processing, in particular to a rectangular tube fixing structure. Background Art

[0002] Rectangular tube is a pipe or tube with a rectangular cross-section, which is commonly used in various industrial and construction applications, such as building structures, mechanical equipment, conveying systems, etc. Rectangular tubes have some specific advantages over round tubes, such as easier installation in some cases, better fit for specific space requirements, etc. They can be made of different materials, including metals (such as steel, aluminum, etc.) and plastics.

[0003] When drilling a rectangular tube, it needs to be fixed, but the existing rectangular tube fixing structure can usually only fix the two sides of the rectangular tube, and the fixing effect is poor. In addition, the rectangular tube often needs to be drilled on multiple sides, and the existing rectangular tube fixing structure usually cannot turn the rectangular tube over, so when drilling holes on other sides, it is necessary to first release the fixation, turn it over, and then fix it again, which increases the complexity and time consumption of the operation and greatly reduces the processing efficiency. Utility Model Content

[0004] The utility model aims to provide a rectangular tube fixing structure which can fix four sides of a rectangular tube and is convenient for processing different sides of the rectangular tube.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows.

[0006] A rectangular tube fixing structure comprises a bottom plate, wherein two support rings are installed on both sides of the upper surface of the bottom plate in the length direction, a rotating disk is rotatably installed inside the two support rings, a placement groove is provided on the rotating disk, four cylinders A are coaxially arranged on the outer surface of the rotating disk, a piston A is provided inside the cylinder A, a guide rod A is connected to the outer surface of the piston A, and the end of the guide rod A penetrates into the placement groove and is installed with a pressure plate. An annular tube is provided on the outer side of the rotating disk, and four connecting tubes A are coaxially arranged on the outer surface of the annular tube, and the ends of the four connecting tubes A are respectively connected to the four cylinders A. An installation groove is provided on the outer surface of the rotating disk, and a pneumatic mechanism capable of simultaneously inflating or exhausting air inside the four cylinders A is provided inside the installation groove. Four connecting rods are commonly connected to the opposite surfaces of the two rotating disks, and the four connecting rods are respectively arranged at the four top corners of the rotating disk, and four positioning holes are provided on the outer surface of one rotating disk in a coaxial array, and a positioning mechanism capable of respectively positioning and cooperating with the four positioning holes is provided on the outer side of the support ring.

[0007] It can be seen that, through the setting of the pneumatic mechanism, the four guide rods A can be driven to extend and retract at the same time, and the four pressure plates can be driven to move at the same time, so as to achieve the purpose of fixing the four sides of the rectangular tube. The fixing effect is good, which ensures the stability of the rectangular tube during the drilling operation. In addition, through the setting of the support ring and the rotating disk, the rectangular tube can be driven to rotate, so that it can be turned over during the processing. During the turning process, the rectangular tube always remains in a fixed state, thereby reducing the complexity and time consumption of the operation, greatly improving the processing efficiency, and through the setting of the positioning mechanism, the rectangular tube can be fixed after it is turned over to ensure the accuracy of the processing.

[0008] Furthermore, the pneumatic mechanism includes a cylinder B installed inside the mounting groove, a piston B is sealed inside the cylinder B, a guide rod B is connected to the outer surface of the piston B, an electric push rod is installed inside the mounting groove, the end of the telescopic end of the electric push rod is connected to the guide rod B, the top of the cylinder B is connected to a connecting tube B, and the end of the connecting tube B is connected to the annular tube.

[0009] By starting the electric push rod, the telescopic end thereof is extended and retracted up and down, thereby driving the guide rod B and the piston B to move up and down. When moving upward, the piston B pushes the internal gas of the cylinder B into the annular tube, and then enters the four cylinders A respectively through the connecting tube A. The internal pressure of the cylinder A increases, thereby pushing the piston A and the guide rod A to move, thereby driving the pressure plate to extend outward and press against the outer surface of the rectangular tube to fix it. When the electric push rod drives the piston B to move downward, the connection between the annular tube and the connecting tube A can generate negative pressure inside the cylinder A, thereby driving the piston A and the guide rod A to move upward, and driving the pressure plate away from the outer surface of the rectangular tube, thereby canceling the fixation of the rectangular tube.

[0010] Furthermore, the positioning mechanism includes a hollow tube installed on the outer surface of the support ring, an insertion rod is inserted into the interior of the hollow tube, a top plate is installed at one end of the insertion rod, a spring is sleeved on the outer surface of the insertion rod, both ends of the spring are respectively abutted against the top plate and the inner wall of the hollow tube, a connecting plate is installed at the other end of the insertion rod, a positioning rod is installed at the end of the connecting plate, and the positioning rod is plugged into and matched with the positioning hole.

[0011] When the rectangular tube needs to be turned over, first pull the connecting plate to drive the positioning rod to be pulled out from the inside of the positioning hole. At this time, the top plate compresses the spring, and then rotate the rotating disk. The connecting action of the connecting rod can drive the two rotating disks to rotate at the same time, and drive the rectangular tube to rotate. When it is rotated to other surfaces, the positioning rod is in the corresponding position of the positioning hole. Then release the connecting plate. Under the elastic force of the spring, the positioning rod can be pushed to insert into the current positioning hole to fix the rotating disk. Since the four connecting rods are respectively located at the four top corners of the rotating disk, the connecting rods will not block the processing surface of the rectangular tube.

[0012] Furthermore, both sides of the outer surface of the pressure plate are connected to limit rods, and the ends of the limit rods penetrate to the outer side of the rotating disk.

[0013] By setting the limiting rod, the pressure plate can be guided and its stability can be improved to prevent its angle from deflecting and affecting the fixing effect.

[0014] Furthermore, a pull rod is connected to the outer surface of the connecting plate.

[0015] By setting the pull rod, it is convenient to pull the connecting plate to draw the positioning rod out of the positioning hole.

[0016] Furthermore, a limiting groove is provided on the inner wall of the hollow tube, a limiting block is arranged inside the limiting groove, and an end of the limiting block is connected to the top plate.

[0017] By setting the limit groove and the limit block, the angle of the insertion rod can be limited to prevent the angle from rotating, which makes it difficult for the positioning rod to quickly and accurately dock with the positioning hole.

[0018] Furthermore, a ball is disposed at the end of the positioning rod.

[0019] When the pull rod is pulled out to extract the positioning rod from the positioning hole and rotate the rotating disk, the pull rod can be loosened to make the ball bearings abut against the outer surface of the rotating disk. The ball bearings rotate with the rotation of the rotating disk, thereby reducing the friction between the two. When the positioning rod is aligned with the positioning hole, it can be automatically inserted into the positioning hole and fixed under the action of the spring.

[0020] Furthermore, a rubber pad is arranged on the outer surface of the pressing plate, and an anti-slip pattern is provided on the outer surface of the rubber pad.

[0021] By providing the rubber pad and the anti-skid pattern, the friction between the pressing plate and the rectangular tube can be increased, thereby improving the fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a partial structural schematic diagram of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the rotating disk in the utility model;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating disk in the utility model;

[0026] Figure 5 It is a structural schematic diagram of the positioning mechanism in the utility model.

[0027] In the figure: 100, bottom plate; 101, support ring; 102, rotating disk; 103, placement groove; 104, cylinder A; 105, piston A; 106, guide rod A; 107, pressure plate; 108, annular tube; 109, connecting tube A; 110, installation groove; 111, connecting rod; 112, positioning hole; 200, pneumatic mechanism; 201, cylinder B; 202, piston B; 203, guide rod B; 204, electric push rod; 205, connecting tube B; 300, positioning mechanism; 301, hollow tube; 302, plug rod; 303, top plate; 304, connecting plate; 305, positioning rod; 306, spring; 400, limit rod; 500, pull rod; 600, limit groove; 601, limit block; 700, ball. DETAILED DESCRIPTION

[0028] The utility model is described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-5 As shown, a rectangular tube fixing structure includes a bottom plate 100, and two support rings 101 are installed on both sides of the upper surface of the bottom plate 100 in the length direction. A rotating disk 102 is rotatably installed inside the two support rings 101, and a placement groove 103 is opened on the rotating disk 102. Four cylinders A104 are installed in a coaxial array on the outer surface of the rotating disk 102. A piston A105 is sealed inside the cylinder A104. A guide rod A106 is connected to the outer surface of the piston A105. The end of the guide rod A106 penetrates into the inside of the placement groove 103 and is installed with a pressing plate 107. An annular tube 108 is arranged on the outer side of the rotating disk 102, and four connecting tubes A109 are installed in a coaxial array on the outer surface of the annular tube 108. The ends of the four connecting tubes A109 are respectively connected to the four cylinders A104. The outer surface of the rotating disk 102 is provided with a mounting groove 110, and the inside of the mounting groove 110 is provided with a pneumatic mechanism 200 capable of simultaneously inflating or exhausting air into the four cylinders A104. Four connecting rods 111 are commonly connected to the opposite surfaces of the two rotating disks 102, and the four connecting rods 111 are respectively arranged at the four vertex corners of the rotating disk 102, and the outer surface of one side of the rotating disk 102 is provided with four positioning holes 112 in a coaxial array, and the outer side of the support ring 101 is provided with a positioning mechanism 300 capable of positioning and cooperating with the four positioning holes 112 respectively.

[0030] When in use, first insert the rectangular tube into the two placement grooves 103, then inflate the annular tube 108 through the pneumatic mechanism 200, and through the connecting action of the connecting tube A109, inflate the interior of the cylinder A104, thereby pushing the piston A105 to move, and pushing the guide rod A106 and the pressure plate 107 to move toward the rectangular tube, ultimately achieving the purpose of simultaneously pressing the four pressure plates 107 on the four surfaces of the rectangular tube for fixation. When it is necessary to process other surfaces of the rectangular tube, the fixing action of the positioning hole 112 can be canceled by the positioning mechanism 300, and then the rotating disk 102 is rotated. The connecting action of the connecting rod 111 can drive the two rotating disks 102 to rotate at the same time, thereby driving the rectangular tube to rotate. When the rectangular tube rotates to other processing surfaces, the rotating disk 102 is fixed by the cooperation of the positioning mechanism 300 and the positioning hole 112, thereby ensuring the accuracy of the processing.

[0031] Specifically, the pneumatic mechanism 200 includes a cylinder B201 installed in the installation groove 110, a piston B202 is sealed inside the cylinder B201, a guide rod B203 is connected to the outer surface of the piston B202, an electric push rod 204 is installed inside the installation groove 110, the end of the telescopic end of the electric push rod 204 is connected to the guide rod B203, the top of the cylinder B201 is connected to a connecting pipe B205, the end of the connecting pipe B205 is connected to the annular pipe 108, and the telescopic end of the electric push rod 204 is started to telescope up and down, thereby driving the guide rod B203 and the piston B202 to move up and down. When moving upward, the piston B202 pushes the cylinder B201. The internal gas of 201 enters into the annular tube 108, and then enters into the four cylinders A104 respectively through the connecting tube A109. The internal pressure of cylinder A104 increases, thereby pushing piston A105 and guide rod A106 to move, thereby driving pressure plate 107 to extend outward and press against the outer surface of the rectangular tube to fix it. When the electric push rod 204 drives piston B202 to move downward, negative pressure is generated inside cylinder A104 through the connection between the annular tube 108 and the connecting tube A109, thereby driving piston A105 and guide rod A106 to move upward, and driving pressure plate 107 away from the outer surface of the rectangular tube, thereby canceling the fixation of the rectangular tube.

[0032] Specifically, the positioning mechanism 300 includes a hollow tube 301 installed on the outer surface of the support ring 101, a plug rod 302 is inserted into the interior of the hollow tube 301, a top plate 303 is installed at one end of the plug rod 302, a spring 306 is sleeved on the outer surface of the plug rod 302, and the two ends of the spring 306 are respectively abutted against the top plate 303 and the inner wall of the hollow tube 301, a connecting plate 304 is installed at the other end of the plug rod 302, a positioning rod 305 is installed at the end of the connecting plate 304, and the positioning rod 305 is plugged into and matched with the positioning hole 112. When the rectangular tube needs to be turned over, the connecting plate 304 is first pulled to drive the positioning rod 305 from the positioning hole 112. 12 is pulled out, at this time, the top plate 303 compresses the spring 306, and then the rotating disk 102 is rotated. The connecting action of the connecting rod 111 can drive the two rotating disks 102 to rotate at the same time, and drive the rectangular tube to rotate. When it is rotated to other surfaces, the positioning rod 305 is in the corresponding position of the positioning hole 112, and then the connecting plate 304 is loosened. Under the elastic force of the spring 306, the positioning rod 305 can be pushed to insert into the current positioning hole 112 to fix the rotating disk 102. Since the four connecting rods 111 are respectively located at the four top corners of the rotating disk 102, the connecting rods 111 will not block the processing surface of the rectangular tube.

[0033] Specifically, both sides of the outer surface of the pressure plate 107 are connected to the limiting rod 400, and the end of the limiting rod 400 passes through the outside of the rotating disk 102. Through the setting of the limiting rod 400, the pressure plate 107 can be guided and the stability can be improved to prevent its angle from deflecting and affecting the fixing effect.

[0034] Specifically, the outer surface of the connecting plate 304 is connected with a pull rod 500 . The setting of the pull rod 500 makes it easy to pull the connecting plate 304 to extract the positioning rod 305 from the positioning hole 112 .

[0035] Specifically, a limiting groove 600 is provided on the inner wall of the hollow tube 301, a limiting block 601 is arranged inside the limiting groove 600, and the end of the limiting block 601 is connected to the top plate 303. By setting the limiting groove 600 and the limiting block 601, the angle of the insertion rod 302 can be limited to prevent the angle from rotating, which makes it difficult for the positioning rod 305 to quickly and accurately dock with the positioning hole 112.

[0036] Specifically, a ball 700 is provided at the end of the positioning rod 305. When the pull rod 500 is pulled out to withdraw the positioning rod 305 from the positioning hole 112 and rotate the rotating disk 102, the pull rod 500 can be loosened to allow the ball 700 to rest against the outer surface of the rotating disk 102. The ball 700 rotates with the rotation of the rotating disk 102, thereby reducing the friction between the two. When the positioning rod 305 is aligned with the positioning hole 112, it can be automatically inserted into the positioning hole 112 and fixed under the action of the spring 306.

[0037] Specifically, a rubber pad is provided on the outer surface of the pressing plate 107, and an anti-skid pattern is provided on the outer surface of the rubber pad. The provision of the rubber pad and the anti-skid pattern can increase the friction between the pressing plate 107 and the rectangular tube, thereby improving the fixing effect.

[0038] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the utility model are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the utility model, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A rectangular tube fixing structure, comprising a bottom plate (100), characterized in that: Two support rings (101) are installed on both sides of the upper surface of the bottom plate (100) in the length direction thereof, and a rotating disk (102) is rotatably installed inside the two support rings (101), and a placement groove (103) is provided on the rotating disk (102). Four cylinders A (104) are installed in a coaxial array on the outer surface of the rotating disk (102), and a piston A (105) is sealed inside the cylinder A (104). The outer surface of the piston A (105) is connected to a guide rod A (106), and the end of the guide rod A (106) passes through the inside of the placement groove (103) and is installed with a pressure plate (107); An annular tube (108) is arranged outside the rotating disk (102), and four connecting tubes A (109) are installed in a coaxial array on the outer surface of the annular tube (108), and the ends of the four connecting tubes A (109) are respectively connected to the four cylinders A (104); The outer surface of the rotating disk (102) is provided with a mounting groove (110), and the interior of the mounting groove (110) is provided with a pneumatic mechanism (200) capable of simultaneously inflating or exhausting air into the four cylinders A (104); The opposite surfaces of the two rotating disks (102) are commonly connected with four connecting rods (111), and the four connecting rods (111) are respectively arranged at the four vertex corners of the rotating disk (102), and the outer surface of one side of the rotating disk (102) is provided with four positioning holes (112) in a coaxial array, and the outer side of the support ring (101) is provided with a positioning mechanism (300) that can be positioned and matched with the four positioning holes (112) respectively.

2. A rectangular tube fixing structure according to claim 1, characterized in that: The pneumatic mechanism (200) comprises a cylinder B (201) installed inside the installation groove (110); a piston B (202) is provided in a sealed manner inside the cylinder B (201); a guide rod B (203) is connected to the outer surface of the piston B (202); an electric push rod (204) is installed inside the installation groove (110); the end of the telescopic end of the electric push rod (204) is connected to the guide rod B (203); a connecting pipe B (205) is connected to the top of the cylinder B (201); and the end of the connecting pipe B (205) is connected to the annular pipe (108).

3. A rectangular tube fixing structure according to claim 2, characterized in that: The positioning mechanism (300) comprises a hollow tube (301) mounted on the outer surface of the support ring (101), an insertion rod (302) is inserted into the interior of the hollow tube (301), a top plate (303) is mounted on one end of the insertion rod (302), a spring (306) is sleeved on the outer surface of the insertion rod (302), two ends of the spring (306) are respectively abutted against the top plate (303) and the inner wall of the hollow tube (301), a connecting plate (304) is mounted on the other end of the insertion rod (302), a positioning rod (305) is mounted on the end of the connecting plate (304), and the positioning rod (305) is plugged into and matched with the positioning hole (112).

4. A rectangular tube fixing structure according to claim 3, characterized in that: Limit rods (400) are connected to both sides of the outer surface of the pressure plate (107), and the ends of the limit rods (400) penetrate to the outside of the rotating disk (102).

5. A rectangular tube fixing structure according to claim 4, characterized in that: A pull rod (500) is connected to the outer surface of the connecting plate (304).

6. A rectangular tube fixing structure according to claim 5, characterized in that: A limiting groove (600) is provided on the inner wall of the hollow tube (301), a limiting block (601) is arranged inside the limiting groove (600), and an end of the limiting block (601) is connected to the top plate (303).

7. A rectangular tube fixing structure according to claim 6, characterized in that: A ball (700) is disposed at the end of the positioning rod (305).

8. The rectangular tube fixing structure according to claim 7, characterized in that: The outer surface of the pressing plate (107) is provided with a rubber pad, and the outer surface of the rubber pad is provided with anti-slip grooves.

Images