Steel pipe connecting structure and connecting method
The connection structure of the cylinder, the first ring and the top column solves the noise and temperature fluctuation problems caused by the steel pipe connection, realizes a stable working environment in the recording studio, and ensures the normal use of the tube monitoring amplifier.
Patent Information
- Application Number
- CN202510852771.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-24
- Publication Date
- 2025-09-09
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing steel pipe connection structure causes the tube monitoring amplifier to be affected by noise and temperature fluctuations, affecting the normal use of the recording studio.
The connection structure of the cylinder, the first ring and the top column is adopted. By setting a fixed distance between the end face of the steel pipe and the ring, the conduction of heat and sound is reduced. The driving unit and the outer clamping unit are used to enhance the connection stability, and the silencer cap is combined to reduce noise.
It effectively reduces heat conduction and sound transmission between the steel tubes, ensures a stable working environment for the tube monitoring amplifier, avoids noise and temperature fluctuations, and ensures the normal use of the recording studio.
Smart Images
Figure CN120608562A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of connection structures, and in particular to a steel pipe connection structure and a connection method. Background Art
[0002] A recording studio is a soundproof environment specifically designed for recording, mixing, and sound production. It is usually used for audio production work such as music, broadcasting, and film and television dubbing. Due to the popularity of outdoor concerts, many recording studios are built at any time according to the change of venues. The tube monitoring amplifiers used in recording studios are placed on racks built of steel pipes. As the requirements for environmental control in the field of music production in recording studios increase, the placement environment requirements for tube monitoring amplifiers have been significantly improved. Soundproofing and heat insulation are required, and the ambient temperature must be maintained at 45±2℃.
[0003] In order to ensure that the existing steel pipe racks for placing tube monitor amplifiers are sufficiently stable, they are directly connected to the external main steel pipe rack via steel pipe connecting clips. However, when in use, the main steel pipe rack will transmit external sound vibrations to the steel pipe rack of the tube monitor amplifier, causing the tube monitor amplifier to be affected by the noise and generate noise. At the same time, the ambient temperature of the tube monitor amplifier will conduct heat through the steel pipes, causing the internal temperature fluctuation to increase, resulting in imbalance in its output impedance matching and abnormal speaker damping, thereby causing sound distortion and noise, affecting the normal use of the recording studio. Summary of the Invention
[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a steel pipe connection structure and a connection method.
[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A steel pipe connection structure is used to connect two adjacent steel pipes, the connection structure comprising: The cylinder is arranged between the inner walls of the adjacent ends of the two steel pipes and is used for axial butt connection of the two steel pipes; Two first circular rings are provided on the outer surface of the cylinder and located between the two steel pipes. The end faces of one end of the two first circular rings respectively abut against the end faces of one adjacent end of the two steel pipes to limit the axial docking position of the two steel pipes in the cylinder. The end faces of the two first circular rings are each provided with a plurality of mounting holes. A plurality of top columns are respectively arranged inside a plurality of mounting holes. The top columns are arranged so that when they move axially along the mounting holes, one end of the top column abuts against one end of the steel pipe, thereby maintaining a fixed distance between the end face of the steel pipe and the end face of the first circular ring, thereby reducing the heat and sound conduction of the steel pipe to the first circular ring through the distance.
[0006] As a further solution of the present invention, the two first rings are provided with a driving unit for driving the top column to move axially along the mounting hole, and the driving unit includes: Two second rings are rotatably mounted on the outer circumferential surface of the cylinder and are disposed between the two first rings; Two fixing blocks are respectively fixedly mounted on the outer circumferential surfaces of the two first rings, and the interiors of the two fixing blocks are penetrated by through holes; Two rotating shafts are rotatably mounted inside the two through holes respectively; Two driving gears are fixedly mounted on adjacent ends of the two rotating shafts; Two driven gear rings are fixedly mounted on the outer circumferential surfaces of the two second circular rings, and the two driven gear rings are respectively meshed with the two driving gears.
[0007] As a further solution of the present invention, the two second rings are respectively provided with a plurality of guide grooves on the end faces close to the two first rings, and the depth of the bottom of the guide groove gradually increases from one end to the other end. The top column is provided with a first spherical surface on the end close to the second ring, and the outer surface of the first spherical surface is against the bottom of the guide groove. When the first spherical surface moves from the deep end to the shallow end relative to the bottom of the guide groove, it will be driven to move along the axial direction of the mounting hole close to the adjacent steel pipe, so that the end face of the steel pipe against the first ring is separated by a fixed distance.
[0008] As a further solution of the present invention, the two first rings are respectively provided with external clamping units for clamping the outer surfaces of the two steel pipes, and the external clamping units include: Two upper plates, which are respectively fixedly mounted on the outer circumferential surfaces of the other ends of the two rotating shafts; The two lower plates are rotatably mounted on the circumferential outer surfaces of the two rotating shafts.
[0009] As a further solution of the present invention, the adjacent upper plates and lower plates among the two upper plates and the two lower plates are set as a group, with a total of two groups, and the two steel pipes are respectively arranged between the two groups of upper plates and lower plates, and rubber pads are provided on the outer surfaces of the upper plates and lower plates close to the steel pipes. The upper plates and lower plates of the group are fixedly connected to each other by snaps, and the steel pipes are clamped and fixed between the upper plates and the lower plates.
[0010] As a further solution of the present invention, an internal support unit for supporting the inner walls of the two steel pipes is provided inside the cylinder, and the internal support unit includes: A plurality of rods fixedly mounted between the inner walls of the second ring; A column, one end of which is adjacent to the plurality of rods and is fixedly mounted; A disc is fixedly mounted on the end of the cylinder away from the second ring, and a plurality of sliding grooves are uniformly spaced through the end surface of the disc in the circumferential direction; A plurality of blocks are equidistantly arranged on the circumferential outer surface of the cylinder for supporting the inner wall of the cylinder. A plurality of first through grooves are equidistantly provided on the circumferential outer surface of the cylinder near both ends. The plurality of blocks are slidably installed with the inner walls of the plurality of first through grooves respectively. A sliding column is fixedly installed at one end of the cylinder, and the sliding column is slidably installed with the inner wall of the sliding groove. A plurality of first protrusions are evenly arranged on the outer surface of the plurality of blocks near the inner wall of the supporting cylinder.
[0011] As a further solution of the present invention, a plurality of second through slots are equidistantly formed through the circumferential outer surface of the cylinder, and the plurality of rods are respectively arranged between the inner walls of the plurality of second through slots and slidably mounted with the inner walls of the second through slots.
[0012] As a further solution of the present invention, the end face of the top column relative to the first spherical surface is provided with a plurality of second protrusions, the edge of the mounting hole near the opening of the first spherical surface is provided with a bevel, the outer surface of the top column near the bevel is provided with a second spherical surface, the second spherical surface is abutted against the outer surface of the bevel, and there is a gap between the circumferential outer surface of the top column and the inner wall of the mounting hole.
[0013] As a further solution of the present invention, silencer caps are fixedly installed on the inner walls of the cylinder near both ends, and the silencer cap is provided with an opening at one end near the steel pipe. A plurality of silencer plates are fixedly installed on the inner wall of the silencer cap, and the multiple silencer plates are arranged in a conical shape, and the angles of the cones are arranged to increase successively.
[0014] A method for using a steel pipe connection structure comprises the following steps: S1: axially butt-jointing the two steel pipes on the outer surface of the cylinder, with the end faces of the adjacent ends of the two steel pipes butting against the end face of the first ring away from each other, thereby limiting the axial positions of the two steel pipes in the cylinder; S2: Manually fasten the upper plate and the lower plate of a group together. When fastening, the upper plate and the lower plate rotate toward each other with the axis of the rotating shaft as the rotation center. After the upper plate and the lower plate are fastened together, the upper plate and the lower plate of a group are fixedly connected to each other by the buckle, thereby clamping the two steel pipes. S3: When the disc rotates, it drives the chute to rotate around the axis of the cylinder. The chute drives the block to slide out of the first through groove through the sliding column, and then presses against the inner wall of the steel pipe, so that the steel pipe is limited; S4: When the push column moves axially in the mounting hole, one end of the push column will abut against one end of the steel pipe, pushing the steel pipe away from the end face of the first ring, so that a fixed distance can be maintained between the end face of the steel pipe and the end face of the first ring. The distance can greatly reduce the direct heat and sound conduction effect of the steel pipe on the first ring.
[0015] The present application axially butts two steel pipes together through a cylinder, and then axially limits the two steel pipes through two first circular rings, and a fixed distance is set between the two first circular rings and the two steel pipes, which effectively prevents the bracket from being disturbed by the vibration of other steel pipes, and at the same time reduces the heat conduction effect between the steel pipes, preventing the ambient temperature of the tube monitoring amplifier from losing too quickly. This method not only reduces the working time of the heating device, saves energy and is environmentally friendly, but also effectively avoids the influence of noise and vibration on the tube monitoring amplifier, ensuring the normal use of the recording studio. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of a steel pipe connection structure proposed by the present invention; Figure 2 A schematic diagram of loosening a steel pipe connection structure proposed by the present invention; Figure 3 This is a rear view schematic diagram of a loosened steel pipe connection structure proposed by the present invention; Figure 4 This is a schematic diagram of the internal structure of a steel pipe connection structure proposed by the present invention; Figure 5 This is a schematic cross-sectional view of a cylinder of a steel pipe connection structure proposed by the present invention; Figure 6 This is a schematic diagram of a cylindrical through groove of a steel pipe connection structure proposed by the present invention; Figure 7 This is a schematic diagram of the retraction of the top column of a steel pipe connection structure proposed by the present invention; Figure 8 This is a schematic diagram of the top column extension of a steel pipe connection structure proposed by the present invention; Figure 9 This is a schematic diagram of a first circular ring of a steel pipe connection structure proposed by the present invention; Figure 10 This is a partial cross-sectional schematic diagram of the second circular ring of a steel pipe connection structure proposed by the present invention; Figure 11 This is a schematic diagram of a second circular ring of a steel pipe connection structure proposed by the present invention; Figure 12 This is a schematic diagram of a top column of a steel pipe connection structure proposed by the present invention; Figure 13 A schematic diagram of a silencer cap of a steel pipe connection structure proposed by the present invention; Figure 14 This is a schematic cross-sectional view of a silencer cap of a steel pipe connection structure proposed by the present invention.
[0017] In the picture: 100, outer clamping unit; 110, upper plate; 120, lower plate; 200, steel pipe; 300, inner support unit; 310, rod; 320, column; 330, block; 331, slide column; 332, first protrusion; 340, disc; 341, slide groove; 400, cylinder; 410, first through slot; 420, second through slot; 500, top column; 510, first spherical surface; 520, second spherical surface; 530, second protrusion; 600, driving unit; 610, driving gear; 620, driven gear ring; 630, fixing block; 640, rotating shaft; 650, second ring; 651, guide groove; 700, silencer cap; 710, silencer sheet; 800, first circular ring; 810, mounting hole; 820, inclined surface. DETAILED DESCRIPTION
[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0019] Because the existing steel pipes 200 are directly connected by connecting buckles, the heat conduction and sound conduction between the two connected steel pipes 200 are relatively obvious, which will cause the problems in the background technology. In order to solve this problem, the present application discloses a steel pipe connection structure for connecting two adjacent steel pipes 200. Figure 1 and Figure 4 As shown, the connection structure includes: a cylinder 400, two first rings 800 and a plurality of top columns 500. A cavity is provided inside the two adjacent steel pipes 200. The two ends of the cylinder 400 are respectively inserted into the cavity of the adjacent ends of the two steel pipes 200, so that the two steel pipes 200 are butted together in their axial direction. In order to limit the axial position of the two steel pipes 200 in the cylinder 400, as shown in FIG. Figure 2 As shown, the two first circular rings 800 are symmetrically fixed on the outer circumferential surface of the cylinder 400. When the two steel pipes 200 are connected, the end faces of the two first circular rings 800 that are away from each other respectively abut against the end faces of the adjacent ends of the two steel pipes 200, thereby limiting the axial position of the two steel pipes 200 in the cylinder 400, which is convenient for subsequent fixation. Since the end faces of the steel pipes 200 are in direct contact with the end faces of the first circular rings 800, and there is no other medium between the contact surfaces, when one of the steel pipes 200 is vibrated by sound or impact, this vibration will be transmitted to the other steel pipe 200 through the first circular rings 800, thereby causing the other steel pipe 200 to vibrate. This vibration will generate noise, and this connection method will cause heat to be quickly transmitted from one steel pipe 200 to the other steel pipe 200, resulting in heat loss. In order to avoid this problem, as Figure 11As shown, the end surfaces of the two first rings 800 are each provided with a plurality of mounting holes 810. Figure 4 As shown, a plurality of mounting holes 810 are each provided with a top post 500. When the top post 500 moves axially in the mounting hole 810, one end of the top post 500 abuts against one end of the steel pipe 200, pushing the steel pipe 200 away from the end face of the first ring 800. Figure 1 As shown, a fixed distance can be maintained between the end face of the steel pipe 200 and the end face of the first circular ring 800. By increasing the distance, the heat conduction and sound conduction effects between the steel pipe 200 and the first circular ring 800 are significantly weakened, thereby effectively reducing the heat conduction and sound transmission between the two steel pipes 200. When using steel pipes 200 to build a recording studio and a tube monitoring amplifier bracket, the connection method adopted in this solution effectively avoids the bracket from being disturbed by the vibration of other steel pipes 200, while reducing the heat conduction effect between the steel pipes 200, preventing the ambient temperature of the tube monitoring amplifier from losing too quickly. This method not only reduces the working time of the heating device, saves energy and is environmentally friendly, but also effectively avoids the influence of noise and vibration on the tube monitoring amplifier, ensuring the normal use of the recording studio.
[0020] In order to make the top column 500 move axially in the mounting hole 810, a fixed distance is maintained between the steel pipe 200 and the first ring 800. In a further solution, a driving unit 600 is provided to drive the top column 500 to move axially along the mounting hole 810, as shown in FIG. Figure 4 and Figure 5 As shown, the driving unit 600 includes: two second rings 650 , two fixing blocks 630 , two rotating shafts 640 , two driving gears 610 and two driven gear rings 620 . The two fixed blocks 630 are respectively fixedly mounted on the circumferential outer surfaces of the two first rings 800, and the interiors of the two fixed blocks 630 are penetrated by through holes. The two rotating shafts 640 are respectively rotatably mounted inside the two through holes. The two driving gears 610 are respectively fixedly mounted on the adjacent ends of the two rotating shafts 640. When the rotating shafts 640 are driven to rotate (the specific driving method is described in detail below), the rotating shafts 640 can drive the driving gears 610 to rotate. Since the two second rings 650 are rotatably mounted on the circumferential outer surfaces of the cylinder 400 and are arranged between the two first rings 800, the two driven gear rings 620 are respectively fixedly mounted on the circumferential outer surfaces of the two second rings 650. The two driven gear rings 620 are respectively meshed with the two driving gears 610. When the driving gear 610 rotates, it will drive the driven gear ring 620 to rotate, so that the driven gear ring 620 drives the second ring 650 to rotate with the axis of the cylinder 400 as the rotation center, as shown in FIG. Figure 6 and Figure 7 As shown, the two second rings 650 are respectively provided with a plurality of guide grooves 651 on their end surfaces close to the two first rings 800. Figure 9As shown, the depth of the bottom of the guide groove 651 gradually increases from one end to the other end, and a first spherical surface 510 is provided at one end of the top column 500 close to the second ring 650. When the top column 500 does not push the steel pipe 200, the outer surface of the first spherical surface 510 abuts against the deepest bottom of the guide groove 651. When the second ring 650 rotates, it will drive the guide groove 651 to move, so that the first spherical surface 510 slides relative to the guide groove 651 from the deepest bottom of the guide groove 651 to the shallowest bottom. At this time, the top column 500 will be driven to move along the axial direction of the mounting hole 810 close to the adjacent steel pipe 200, so that the end surface of the steel pipe 200 abutting against the first ring 800 is separated by a fixed distance, thereby avoiding direct abutment between the end surface of the steel pipe 200 and the first ring 800, reducing the impact of the vibration of one steel pipe 200 on the other steel pipe 200, and at the same time, reducing the heat loss of the steel pipe 200.
[0021] Since both ends of the top column 500 are in direct contact with the steel pipe 200 and the second ring 650 respectively, and the outer circle of the top column 500 is in direct contact with the inner wall of the mounting hole 810, one of the steel pipes 200 will transmit vibration to the other steel pipe 200 through these contact modes of the top column 500. At the same time, heat will also be lost through these contact modes. Therefore, in order to solve this problem, Figure 10 As shown, the end surface of the top column 500 relative to the first spherical surface 510 is provided with a plurality of second protrusions 530, which abut against the end surface of the steel pipe 200 through the plurality of second protrusions 530, so that there is a gap in the middle of the contact surface, reducing the contact surface area, thereby reducing the conduction of vibration and heat, as shown in FIG. Figure 11 and Figure 12 As shown, the edge of the opening of the mounting hole 810 near the first spherical surface 510 is provided with an inclined surface 820, and the outer surface of the top column 500 near the inclined surface 820 is provided with a second spherical surface 520. When the top column 500 moves along the axis of the mounting hole 810 and is ready to abut against the end face of the steel pipe 200, as shown in FIG. Figure 10As shown, the second spherical surface 520 will abut against the outer surface of the inclined surface 820. Since the inclined surface 820 is a conical surface with an angle of 150 degrees, the second spherical surface 520 of the top column 500 will be guided by the inner wall of the inclined surface 820 to drive the top column 500 to move toward the middle of the mounting hole 810. When the top column 500 abuts against the steel pipe 200, when the steel pipe 200 is vibrated, this vibration will drive the top column 500 to vibrate. There is a gap between the circumferential outer surface of the top column 500 and the inner wall of the mounting hole 810. The distance of the gap is between 0.1 mm and 0.2 mm. At this time, the circumferential surface of the top column 500 has no direct contact with the inside of the mounting hole 810. The amplitude of the vibration of the top column 500 is very small, and its outer surface will not abut against the inner wall of the mounting hole 810. Contact, thereby reducing the conduction of vibration. At the same time, due to the existence of the gap, heat conduction will also be isolated, because the top column 500 only contacts the first ring 800 through the second spherical surface 520 and the inclined surface 820. At the same time, the top column 500 contacts the second ring 650 through the first spherical surface 510 and the guide groove 651. Because the surfaces of the first spherical surface 510 and the second spherical surface 520 are spherical, the smaller contact surface can reduce the conduction and loss of heat energy, and when the top column 500 vibrates, the second spherical surface 520 will slide slightly relative to the inclined surface 820, and the first spherical surface 510 will slide slightly relative to the guide groove 651. The kinetic energy of vibration is converted into heat generated during sliding through sliding and consumed, thereby reducing the conduction of vibration.
[0022] Since the contact area between the steel pipe 200 and the top column 500 is reduced, and the contact area between the top column 500 and the second ring 650 and the first ring 800 is reduced, the connection rigidity of the steel pipe 200 is weakened, and the two steel pipes 200 are butt-jointed through the axis of the cylinder 400. When the two steel pipes 200 are subjected to axial pulling force during use, they will be easily pulled apart, causing the two steel pipes 200 to slip off the surface of the cylinder 400. In order to solve this problem, Figure 1 - Figure 3 As shown, the two first rings 800 are respectively provided with outer clamping units 100 for clamping the outer surfaces of the two steel pipes 200. The outer clamping units 100 include: two upper plates 110 and two lower plates 120. The two upper plates 110 are respectively fixedly mounted on the outer circumference of the other end of the two rotating shafts 640, and the two lower plates 120 are respectively rotatably mounted on the outer circumference of the two rotating shafts 640. Figure 2As shown, the adjacent upper plates 110 and lower plates 120 of the two upper plates 110 and the two lower plates 120 are set as a group with a total of two groups, and the two steel pipes 200 are respectively arranged between the two groups of upper plates 110 and lower plates 120. When it is necessary to clamp the two steel pipes 200, it is only necessary to manually buckle the upper plate 110 and the lower plate 120 in one group together. When buckling, the upper plate 110 and the lower plate 120 rotate close to each other with the axis of the rotating shaft 640 as the rotation center. When the upper plate 110 rotates, it drives the rotating shaft 640 to rotate, so that the rotating shaft 640 drives the driving gear 610 to rotate. After the upper plate 110 and the lower plate 120 are buckled, a group of upper plates 110 and the lower plate 120 are fixedly connected to each other by buckles, clamping the steel pipes 200. Tightly fixed between the upper plate 110 and the lower plate 120, the two steel pipes 200 are prevented from slipping off the surface of the cylinder 400 during use. In order to avoid direct contact between the steel pipe 200 and the upper plate 110 and the lower plate 120, and to reduce heat and vibration conduction, rubber pads are provided on the outer surfaces of the upper plate 110 and the lower plate 120 close to the steel pipe 200. The rubber pads can increase the friction between the upper plate 110 and the lower plate 120 and the steel pipe 200, further improving the stability of the steel pipe 200 being clamped, and the two groups of upper plates 110 and lower plates 120 respectively clamp the two steel pipes 200, so that the two steel pipes 200 will not have direct contact through the upper plate 110 and the lower plate 120, thereby avoiding direct conduction of vibration and heat.
[0023] Because the steel pipes 200 need to bear a large force when in use, in order to improve the stability of the connection structure, the cylinder 400 is provided with an inner support unit 300 for supporting the inner walls of the two steel pipes 200. Figure 5As shown, the inner support unit 300 includes: a plurality of rods 310, a column 320, a disk 340 and a plurality of blocks 330, wherein the plurality of rods 310 are fixedly mounted between the inner walls of the second ring 650, the column 320 is fixedly mounted at one end adjacent to the plurality of rods 310, the disk 340 is fixedly mounted at one end of the column 320 away from the second ring 650, and the plurality of blocks 330 are equidistantly arranged on the outer surface of the circumference of the cylinder 400 for supporting the inner wall of the cylinder 400, and the cylinder 400 is close to both ends. The outer surface of the circumference is provided with a plurality of first through grooves 410 at equal intervals, and a plurality of blocks 330 are respectively slidably mounted on the inner walls of the plurality of first through grooves 410. In order to make the blocks 330 bear against the inner wall of the steel pipe 200, when the second ring 650 rotates with the axis of the cylinder 400 as the rotation center, the second ring 650 drives the column 320 to rotate with the axis of the cylinder 400 as the rotation center through the plurality of rods 310, thereby causing the column 320 to drive the disc 340 to rotate with the axis of the cylinder 400 as the rotation center. The circumferential direction of the end face of 340 is equidistantly penetrated with a plurality of slide grooves 341. The block 330 is fixedly installed with a slide post 331 at one end of the cylinder 400. The slide post 331 is slidably installed with the inner wall of the slide groove 341. When the disc 340 rotates, the slide groove 341 is driven to rotate with the axis of the cylinder 400 as the rotation center. The slide groove 341 drives the block 330 to slide out from the inside of the first through groove 410 through the slide post 331, and then supports the inner wall of the steel pipe 200. In order to increase the block 330 and the inner wall of the steel pipe 200, the block 330 is fixedly installed with a slide post 331. In order to reduce the friction force, a plurality of first protrusions 332 are evenly arranged on the outer surface of several blocks 330 close to the inner wall of the support cylinder 400. The first protrusions 332 are made of rubber material. The first protrusions 332 are against the inner wall of the steel pipe 200. Because the blocks 330 support the inner wall of the steel pipe 200, there will be a gap between the outer surface of the cylinder 400 and the inner wall of the steel pipe 200, so that the steel pipe 200 is not in direct contact with the cylinder 400, which can reduce the heat conduction and vibration conduction of the steel pipe 200 to the cylinder 400.
[0024] In order to limit the rotation range of the rod body 310, a plurality of second through grooves 420 are equidistantly opened through the circumferential outer surface of the cylinder body 400. The plurality of rod bodies 310 are respectively arranged between the inner walls of the plurality of second through grooves 420 and slidably installed with the inner walls of the second through grooves 420.
[0025] It should be noted that rubber pads and a first protrusion 332 made of rubber material are provided on the outer surface of the upper plate 110 and the lower plate 120 close to the steel pipe 200, so that when the top column 500 pushes open the steel pipe 200, the outer clamping unit 100 and the inner support unit 300 have an elastic compression space, which is not a rigid connection, ensuring the linkage of the top column 500, the outer clamping unit 100 and the inner support unit 300; and while connecting the two steel pipes 200, the top column 500 pushes the two 200 open, and the operator can clearly feel that there is an obvious damping feeling when rotating the upper plate 110. Through this damping feeling, the operator can know whether the top column 500 is against the end face of the steel pipe 200. When there is no damping feeling, the operator can judge that the top column 500 is not against the steel pipe 200, and can adjust the position of the steel pipe 200 in time to avoid the steel pipe 200 not being supported by the top column 500, resulting in unstable subsequent connection of the steel pipe 200 and easy movement along its axis.
[0026] Because the interior of the steel pipe 200 is open, the hollow channel inside can also conduct sound. In order to solve the problem of sound conduction in the channel between the two steel pipes 200, as shown in FIG. Figure 3 As shown, the inner wall of the cylinder 400 near both ends is fixedly installed with a muffler cap 700, as shown in FIG. Figure 13 As shown, the end of the muffler cap 700 close to the steel pipe 200 is provided with an opening, and a plurality of muffler sheets 710 are fixedly installed on the inner wall of the muffler cap 700. When the sound is transmitted to the opening of the muffler cap 700, the sound will be blocked by the muffler sheets 710. Figure 14 As shown, the outer shapes of the multiple silencers 710 are set in a conical shape, and the angles of the cones are set to increase successively. When the sound is transmitted to the position of the next silencer 710, because the inlet of the current silencer 710 is smaller, part of the sound waves will be reflected. At this time, the sound waves enter the space between the two adjacent silencers 710 and are constantly reflected, thereby causing interference between the sound waves, offsetting or weakening the vibration of the sound waves. Through this setting, the conduction of sound in the channel between the two steel pipes 200 can be greatly weakened, reducing the conduction of noise.
[0027] A method for using a steel pipe connection structure comprises the following steps: S1: axially butt-join the two steel pipes 200 onto the outer surface of the cylinder 400 , with the adjacent end surfaces of the two steel pipes 200 abutting against the end surface of the first ring 800 away from each other, thereby limiting the axial positions of the two steel pipes 200 in the cylinder 400 ; S2: Manually fasten the upper plate 110 and the lower plate 120 of one set together. When fastening, the upper plate 110 and the lower plate 120 rotate toward each other with the axis of the rotating shaft 640 as the rotation center. After the upper plate 110 and the lower plate 120 are fastened together, the upper plate 110 and the lower plate 120 of the set are fixedly connected to each other by the buckle, clamping the two steel pipes 200. S3: When the disc 340 rotates, it drives the chute 341 to rotate around the axis of the cylinder 400. The chute 341 drives the block 330 to slide out of the first through groove 410 through the slide post 331, and then presses against the inner wall of the steel pipe 200, so that the steel pipe 200 is fixed in place. S4: When the top column 500 moves axially in the mounting hole 810, one end of the top column 500 will abut against one end of the steel pipe 200, pushing the steel pipe 200 away from the end face of the first ring 800, so that a fixed distance can be maintained between the end face of the steel pipe 200 and the end face of the first ring 800. The distance can greatly reduce the direct heat and sound conduction effects of the steel pipe 200 on the first ring 800.
[0028] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.
Claims
1. A steel pipe connection structure for connecting two adjacent steel pipes (200), characterized in that: The connection structure includes: A cylinder (400) is disposed between inner walls of adjacent ends of two steel pipes (200) and is used for axially butting the two steel pipes (200); Two first circular rings (800) are arranged on the outer surface of the cylinder (400) and located between the two steel pipes (200), the end faces of one end of the two first circular rings (800) respectively abutting against the end faces of adjacent ends of the two steel pipes (200), and are used to limit the axial docking position of the two steel pipes (200) in the cylinder (400), and the end faces of the two first circular rings (800) are each provided with a plurality of mounting holes (810); A plurality of top columns (500) are respectively arranged inside a plurality of mounting holes (810). The top columns (500) are arranged so that when they move axially along the mounting holes (810), one end of the top column (500) abuts against one end of the steel pipe (200), thereby maintaining a fixed distance between the end face of the steel pipe (200) and the end face of the first circular ring (800), thereby reducing the heat conduction and sound conduction of the steel pipe (200) to the first circular ring (800) through the distance.
2. The steel pipe connection structure according to claim 1, characterized in that: The two first rings (800) are provided with a driving unit (600) for driving the top column (500) to move axially along the mounting hole (810), and the driving unit (600) includes: Two second circular rings (650) are rotatably mounted on the outer circumferential surface of the cylinder (400) and are disposed between the two first circular rings (800); Two fixing blocks (630) are respectively fixedly mounted on the outer circumferential surfaces of the two first rings (800), and through holes are provided in the interiors of the two fixing blocks (630); Two rotating shafts (640) are rotatably mounted inside the two through holes respectively; Two driving gears (610) are fixedly mounted on adjacent ends of the two rotating shafts (640); Two driven gear rings (620) are respectively fixedly mounted on the circumferential outer surfaces of the two second circular rings (650), and the two driven gear rings (620) are respectively meshed with the two driving gears (610).
3. The steel pipe connection structure according to claim 2, characterized in that: The two second circular rings (650) are respectively provided with a plurality of guide grooves (651) on the end faces close to the two first circular rings (800), and the depth of the bottom of the guide groove (651) gradually increases from one end to the other end. The top column (500) is provided with a first spherical surface (510) on one end close to the second circular ring (650), and the outer surface of the first spherical surface (510) is against the bottom of the guide groove (651). When the first spherical surface (510) moves from the deep end to the shallow end relative to the bottom of the guide groove (651), it is driven to move along the axial direction of the mounting hole (810) close to the adjacent steel pipe (200), so that the end face of the steel pipe (200) against the first circular ring (800) is separated by a fixed distance.
4. The steel pipe connection structure according to claim 1, characterized in that: The two first circular rings (800) are respectively provided with outer clamping units (100) for clamping the outer surfaces of the two steel pipes (200), and the outer clamping units (100) include: Two upper plates (110) are respectively fixedly mounted on the circumferential outer surfaces of the other ends of the two rotating shafts (640); The two lower plates (120) are rotatably mounted on the circumferential outer surfaces of the two rotating shafts (640).
5. The steel pipe connection structure according to claim (4), characterized in that: The adjacent upper plates (110) and lower plates (120) of the two upper plates (110) and the two lower plates (120) are set as a group, with a total of two groups. The two steel pipes (200) are respectively arranged between the two groups of upper plates (110) and lower plates (120). Rubber pads are provided on the outer surfaces of the upper plates (110) and lower plates (120) close to the steel pipes (200). The upper plates (110) and lower plates (120) of the group are fixedly connected to each other by buckles, so that the steel pipes (200) are clamped and fixed between the upper plates (110) and the lower plates (120).
6. The steel pipe connection structure according to claim 1, characterized in that: An inner support unit (300) for supporting the inner walls of the two steel pipes (200) is provided inside the cylinder (400). The inner support unit (300) comprises: A plurality of rods (310) fixedly mounted between the inner walls of the second ring (650); A column (320) is fixedly mounted at one end adjacent to the plurality of rods (310); A circular disc (340) is fixedly mounted on one end of the column (320) away from the second circular ring (650), and a plurality of sliding grooves (341) are formed on the end surface of the circular disc (340) at equal intervals in the circumferential direction; A plurality of blocks (330) are equidistantly arranged on the circumferential outer surface of the cylinder (400) for supporting the inner wall of the cylinder (400); a plurality of first through grooves (410) are equidistantly opened on the circumferential outer surface of the cylinder (400) near both ends; the plurality of blocks (330) are respectively slidably mounted on the inner walls of the plurality of first through grooves (410); a sliding column (331) is fixedly mounted on one end of the cylinder (400); the sliding column (331) is slidably mounted on the inner wall of the sliding groove (341); and a plurality of first protrusions (332) are evenly arranged on the outer surfaces of the plurality of blocks (330) near the inner wall of the supporting cylinder (400).
7. The steel pipe connection structure according to claim 6, characterized in that: A plurality of second through slots (420) are equidistantly formed through the circumferential outer surface of the cylinder (400), and the plurality of rods (310) are respectively arranged between the inner walls of the plurality of second through slots (420) and slidably mounted on the inner walls of the second through slots (420).
8. The steel pipe connection structure according to claim 1, characterized in that: The top column (500) is provided with a plurality of second protrusions (530) on the end surface relative to the first spherical surface (510); the mounting hole (810) is provided with a bevel (820) on the edge of the opening close to the first spherical surface (510); the top column (500) is provided with a second spherical surface (520) on the outer surface close to the bevel (820); the second spherical surface (520) abuts against the outer surface of the bevel (820); and a gap is provided between the circumferential outer surface of the top column (500) and the inner wall of the mounting hole (810).
9. The steel pipe connection structure according to claim 1, characterized in that: Silencing caps (700) are fixedly mounted on the inner walls of the cylinder (400) near both ends. An opening is provided at one end of the silencing cap (700) near the steel pipe (200). A plurality of silencing pieces (710) are fixedly mounted on the inner wall of the silencing cap (700). The plurality of silencing pieces (710) are arranged in a conical shape, and the angles of the cones are arranged to increase in sequence.
10. A method for using a steel pipe connection structure, characterized in that: A steel pipe connection structure according to any one of claims 1 to 9 is adopted.