Auxiliary butt joint device for corrugated pipes

Abstract

The utility model discloses an auxiliary butt joint device for corrugated pipes. The auxiliary butt joint device comprises a butt joint straight rod, a sliding sleeve frame, a U-shaped connecting rod, a sliding limiting assembly, a connecting assembly, a first arc-shaped pipe groove clamping rod and a second arc-shaped pipe groove clamping rod. The pair of butt-joint straight rods are arranged on the two sides of the two corrugated pipes in parallel respectively, the pair of sliding sleeve frames are arranged on the pair of butt-joint straight rods in a sliding mode through sliding limiting assemblies, and the two ends of a U-shaped connecting rod of an inverted-U-shaped structure are connected to the sliding limiting assemblies of the pair of sliding sleeve frames respectively; the two ends of the first arc-shaped pipe groove clamping rod are detachably connected with the pair of sliding sleeve frames through connecting assemblies correspondingly, and the two ends of the second arc-shaped pipe groove clamping rod are detachably connected with one ends of the pair of butt-joint straight rods through connecting assemblies correspondingly, so that the first arc-shaped pipe groove clamping rod and the second arc-shaped pipe groove clamping rod can be clamped to the two corrugated pipes. The utility model relates to the technical field of pipeline butt joint, and can solve the problem of poor butt joint precision of manually aligned corrugated pipes in a narrow space in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline butt joint, in particular to a bellows auxiliary butt joint device. Background Art

[0002] Bellows refers to a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and expansion direction. Bellows are widely used in instruments and meters. Their main purpose is to be used as a measuring element of pressure measuring instruments to convert pressure into displacement or force. The bellows has a thin wall and high sensitivity, and the measurement range is from tens of Pa to tens of MPa.

[0003] During the process of laying and docking the corrugated pipe, it is necessary to align it first. Usually, a lifting device is used to move the corrugated pipe. However, in a narrow construction space, the lifting device is too large to be used. The two sections of the corrugated pipe can only be aligned manually. During the docking process of the corrugated pipe, the corrugated pipe may be offset, affecting the docking accuracy. Therefore, it is necessary to provide a corrugated pipe auxiliary docking device that can solve the problem of poor docking accuracy of manually aligned corrugated pipes in a narrow space in the prior art. Summary of the invention

[0004] The utility model aims to provide a bellows auxiliary docking device, which can solve the problem of poor docking precision of manually aligned bellows in a narrow space in the prior art.

[0005] The utility model is achieved in this way:

[0006] A bellows auxiliary docking device comprises a docking straight rod, a sliding sleeve frame, a U-shaped connecting rod, a sliding limit assembly, a connecting assembly, a first arc-shaped tube groove clamping rod and a second arc-shaped tube groove clamping rod; a pair of docking straight rods are respectively arranged in parallel on both sides of two sections of the bellows, a pair of sliding sleeve frames are respectively slidably arranged on the pair of docking straight rods through the sliding limit assembly, and the two ends of the U-shaped connecting rod of the inverted U-shaped structure are respectively connected to the sliding limit assembly of the pair of sliding sleeve frames; the two ends of the first arc-shaped tube groove clamping rod are respectively detachably connected to the pair of sliding sleeve frames through the connecting assembly, and the two ends of the second arc-shaped tube groove clamping rod are respectively detachably connected to one end of the pair of docking straight rods through the connecting assembly, so that the first arc-shaped tube groove clamping rod and the second arc-shaped tube groove clamping rod can be respectively clamped on the two sections of the bellows.

[0007] Each group of the sliding limit assembly comprises a rotating mechanism and a limit block; one end of the limit block is rotatably mounted on the top of the sliding sleeve frame through the rotating mechanism, a through hole is formed on the top of the sliding sleeve frame, and the through hole is located directly below the limit block; a plurality of limit slots arranged at equal intervals are formed on the top surface of the docking straight rod, so that the bottom of the limit block can pass through the through hole and then be matched and connected to one side wall of one of the limit slots, or the other end of the limit block can be rotated through the rotating mechanism to abut against the other side wall of the limit slot.

[0008] The rotating mechanism includes a connecting plate, a limiting rotating shaft, and a rotating block; a pair of connecting plates are arranged on both sides of the top of the sliding sleeve frame, the limiting rotating shaft is connected between the pair of connecting plates, and the rotating block is rotatably sleeved on the limiting rotating shaft and is located between the pair of connecting plates; a U-shaped connecting rod is connected to the top of the rotating block.

[0009] The cross-section of the limit card slot is an isosceles inverted triangle structure, the bottom of the limit card block is a hypotenuse structure, and the bevel angle of the hypotenuse structure is consistent with the bottom angle of the triangle structure, so that the bottom of the limit card block can match and abut against a side wall of the limit card slot.

[0010] The connecting assembly includes a fixed block, a connecting block and a fitting limit plate; one end of the fixed block used to connect the first arc-shaped tube groove clamping rod is connected to the sliding sleeve frame, one end of the fixed block used to connect the second arc-shaped tube groove clamping rod is connected to the end of the docking straight rod, and the other end of the fixed block is connected to the connecting block; the end of the first arc-shaped tube groove clamping rod and the end of the second arc-shaped tube groove clamping rod are both connected to the fitting limit plate, and the fitting limit plate is connected to the connecting block through bolts and nuts.

[0011] The first arc-shaped tube groove clamping rod and the second arc-shaped tube groove clamping rod are both arc-shaped structures matching the minimum tube diameter of the corrugated tube, so that the first arc-shaped tube groove clamping rod and the second arc-shaped tube groove clamping rod can be matched and clamped in any recessed ring of the two sections of the corrugated tube respectively.

[0012] The height of the first arc-shaped tube groove clamping rod and the height of the second arc-shaped tube groove clamping rod are both smaller than the height of the U-shaped connecting rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model is provided with a butt-jointed straight rod, a first arc-shaped tube groove clamping rod and a second arc-shaped tube groove clamping rod, and a pair of butt-jointed straight rods are symmetrically arranged on both sides of the corrugated pipe, so that the first arc-shaped tube groove clamping rod and the second arc-shaped tube groove clamping rod between the pair of butt-jointed straight rods can be respectively sleeved on the two sections of the corrugated pipe, limiting the axial and radial displacement of the two sections of the corrugated pipe, ensuring the coaxiality of the two sections of the corrugated pipe and the stability during the butt-jointing process, and having a small volume, can assist in the manual alignment of the two sections of the corrugated pipe in a narrow space.

[0015] 2. The utility model is provided with a sliding sleeve frame, a sliding limit assembly and a U-shaped connecting rod. A pair of sliding sleeve frames are respectively sleeved on a pair of docking straight rods and slide synchronously on both sides of the corrugated pipe through the U-shaped connecting rod. The sleeve positions of the first arc-shaped pipe groove clamping rod and the second arc-shaped pipe groove clamping rod on the two sections of the corrugated pipe can be adjusted, and the position is clamped and limited by the sliding limit assembly, so as to further ensure the stability and force uniformity when the two sections of the corrugated pipe are docked, thereby ensuring the docking accuracy.

[0016] 3. The utility model has a simple structure and is easy to disassemble and assemble. It is suitable for corrugated pipes of different sizes, has good applicability and practicality, and is conducive to improving the docking efficiency and docking accuracy of the corrugated pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereoscopic view from one side of the bellows auxiliary docking device of the utility model;

[0018] Figure 2 This is a stereoscopic view of the bellows auxiliary docking device of the utility model from another side perspective;

[0019] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 yes Figure 1 A magnified schematic diagram of point B in the middle.

[0021] In the figure, 1, docking straight rod; 2, sliding sleeve frame; 3, through hole; 4, connecting plate; 5, limiting shaft; 6, rotating block; 7, U-shaped connecting rod; 8, limiting block; 9, fixing block; 10, connecting block; 11, fitting limiting plate; 12, nut; 13, first arc-shaped pipe groove clamping rod; 14, bolt; 15, limiting slot; 16, second arc-shaped pipe groove clamping rod. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Please see attached Figure 1 and attached Figure 2 A bellows auxiliary docking device comprises a docking straight rod 1, a sliding sleeve frame 2, a U-shaped connecting rod 7, a sliding limit assembly, a connecting assembly, a first arc-shaped tube groove clamping rod 13 and a second arc-shaped tube groove clamping rod 16; a pair of docking straight rods 1 are respectively arranged in parallel on both sides of two sections of the bellows, a pair of sliding sleeve frames 2 are respectively slidably arranged on the pair of docking straight rods 1 through the sliding limit assembly, and the two ends of the U-shaped connecting rod 7 of the inverted U-shaped structure are respectively connected to the sliding limit assembly of the pair of sliding sleeve frames 2; the two ends of the first arc-shaped tube groove clamping rod 13 are respectively detachably connected to the pair of sliding sleeve frames 2 through the connecting assembly, and the two ends of the second arc-shaped tube groove clamping rod 16 are respectively detachably connected to one end of the pair of docking straight rods 1 through the connecting assembly, so that the first arc-shaped tube groove clamping rod 13 and the second arc-shaped tube groove clamping rod 16 can be respectively clamped on the two sections of the bellows.

[0024] A pair of butt-jointing straight rods 1 are arranged in parallel on both sides of the corrugated pipe, and are respectively clamped on the two sections of the corrugated pipe through the first arc-shaped pipe groove clamping rod 13 and the second arc-shaped pipe groove clamping rod 16, so that the straightness of the pair of butt-jointing straight rods 1 can be used to ensure the coaxial alignment of the two sections of the corrugated pipe. The whole device is small in size and can be used in a small space. It can also assist manual operation, improve the coaxiality of the two sections of the corrugated pipe and the alignment accuracy during the butt-jointing process.

[0025] The U-shaped connecting rod 7 is used to control the sliding of the sliding sleeve frame and drive the first arc-shaped tube groove clamping rod 13 to slide synchronously, thereby adjusting the position of the first arc-shaped tube groove clamping rod 13, and then limiting it on the docking straight rod 1 through the sliding limit assembly, ensuring that the first arc-shaped tube groove clamping rod 13 and the second arc-shaped tube groove clamping rod 16 can respectively position the two sections of the corrugated pipe to prevent the two sections of the corrugated pipe from slipping during the docking process.

[0026] Preferably, the docking straight rod 1 can be made of square steel, and the sliding frame 2 can be made of square steel one size larger than the docking straight rod 1, so that the sliding frame 2 can slide flexibly along the docking straight rod 1 under the drive of the U-shaped connecting rod 7.

[0027] Please see attached Figure 3 Each group of the sliding limit assembly comprises a rotating mechanism and a limit block 8; one end of the limit block 8 is rotatably mounted on the top of the sliding sleeve frame 2 through the rotating mechanism, and a through hole 3 is formed on the top of the sliding sleeve frame 2, and the through hole 3 is located directly below the limit block 8; a plurality of limit slots 15 arranged at equal intervals are formed on the top surface of the docking straight rod 1, so that the bottom of the limit block 8 can pass through the through hole 3 and then match and snap onto one side wall of one of the limit slots 15, or the other end of the limit block 8 can be rotated and abutted against the other side wall of the limit slot 15 through the rotating mechanism.

[0028] The limit block 8 can rotate slightly up and down. When the limit block 8 rotates to release the contact with the limit slot 15, the sliding sleeve frame 2 can slide along the docking straight rod 1. The limit block 8 rotates to make the bottom of the limit block 8 fit tightly against one side wall of the limit slot 15 to limit the movement of the sliding sleeve frame 2 toward the second arc-shaped tube groove clamping rod 16. The other end of the limit block 8 fits tightly against the other side wall of the limit slot 15 to limit the movement of the sliding sleeve frame 2 toward the first arc-shaped tube groove clamping rod 13, so that the sliding sleeve frame 2 can move in both directions and be limited at a certain position of the docking straight rod 1.

[0029] Please see attached Figure 3 The rotating mechanism includes a connecting plate 4, a limiting rotating shaft 5, and a rotating block 6; a pair of connecting plates 4 are arranged on both sides of the top of the sliding frame 2, the limiting rotating shaft 5 is connected between the pair of connecting plates 4, and the rotating block 6 is rotatably sleeved on the limiting rotating shaft 5 and is located between the pair of connecting plates 4; a U-shaped connecting rod 7 is connected to the top of the rotating block 6.

[0030] A through hole slightly larger than the diameter of the limit shaft 5 is provided in the rotating block 6, so that the rotating block 6 can rotate around the limit shaft 5 and drive the limit block 8 and the U-shaped connecting rod 7 to rotate synchronously within a certain range. The width of the rotating block 6 is slightly smaller than the spacing between the pair of connecting plates 4, and the lateral sliding of the rotating block 6 is limited by the pair of connecting plates 4 to prevent the rotating block 6 from slipping out of the limit shaft 5.

[0031] Please see attached Figure 3 The cross-section of the limit card slot 15 is an isosceles inverted triangle structure, the bottom of the limit card block 8 is a hypotenuse structure, and the bevel angle of the hypotenuse structure is consistent with the bottom angle of the triangle structure, so that the bottom of the limit card block 8 can match and abut against one side wall of the limit card slot 15.

[0032] The shapes and sizes of the limit slot 15 and the limit block 8 match, and the shapes of the limit slot 15 and the limit block 8 can be adaptively adjusted according to actual snap-in requirements, such as a triangular structure, a wedge structure, etc., to ensure that the limit block 8 can slide along the limit slot 15 and be rotatably snap-in with the limit slot 15, and be used to limit the sliding frame 2.

[0033] Please see attached Figure 4 The connecting assembly includes a fixing block 9, a connecting block 10 and a fitting limit plate 11; one end of the fixing block 9 used to connect the first arc-shaped tube groove clamping rod 13 is connected to the sliding sleeve frame 2, and one end of the fixing block 9 used to connect the second arc-shaped tube groove clamping rod 16 is connected to the end of the docking straight rod 1, and the other end of the fixing block 9 is connected to the connecting block 10; the end of the first arc-shaped tube groove clamping rod 13 and the end of the second arc-shaped tube groove clamping rod 16 are both connected to the fitting limit plate 11, and the fitting limit plate 11 is connected to the connecting block 10 through a bolt 14 and a nut 12.

[0034] The limiting plate 11 and the connecting block 10 are connected by bolts 14 and nuts 12, so that the first arc-shaped tube groove clamping rod 13 is installed between a pair of sliding sleeve frames 2, and the second arc-shaped tube groove clamping rod 16 is installed between a pair of docking straight rods 1. The disassembly and assembly are convenient and quick, and the first arc-shaped tube groove clamping rod 13 and the second arc-shaped tube groove clamping rod 16 of corresponding sizes can be replaced according to the size of the corrugated pipe.

[0035] Please see attached Figure 1 and attached Figure 2 The first arc-shaped tube groove clamping rod 13 and the second arc-shaped tube groove clamping rod 16 are both arc-shaped structures that match the minimum tube diameter of the corrugated tube, so that the first arc-shaped tube groove clamping rod 13 and the second arc-shaped tube groove clamping rod 16 can be matched and clamped in any recessed ring of the two sections of the corrugated tube respectively.

[0036] By clamping the first arc-shaped tube groove clamping rod 13 and the second arc-shaped tube groove clamping rod 16 with the concave ring of the corrugated pipe, the two sections of the corrugated pipe can be effectively clamped to prevent radial and axial slippage of the corrugated pipe, thereby ensuring the docking accuracy of the two sections of the corrugated pipe. At the same time, the size of the first arc-shaped tube groove clamping rod 13 and the second arc-shaped tube groove clamping rod 16 is determined according to the size of the corrugated pipe, and the entire device is small in size and can assist in manually docking the corrugated pipe in a narrow space.

[0037] The height of the first arc-shaped pipe groove clamping rod 13 and the height of the second arc-shaped pipe groove clamping rod 16 are both smaller than the height of the U-shaped connecting rod 7. The U-shaped connecting rod 7 does not affect the connection of the first arc-shaped pipe groove clamping rod 13 and the second arc-shaped pipe groove clamping rod 16 on the two sections of the corrugated pipe, and it is convenient to hold and rotate the U-shaped connecting rod 7. According to the height conditions of the construction space, a lifting rope, a hand winch, etc. can be installed on the top of the U-shaped connecting rod 7 to facilitate the manual adjustment of the corrugated pipe.

[0038] Please see attached Figure 1 To Attachment Figure 4 , the usage method and working principle of the utility model are:

[0039] A pair of butt-jointed straight rods 1 are respectively placed on the ground at both sides of the first section of the corrugated pipe, and the pair of butt-jointed straight rods 1 are arranged parallel and symmetrically with respect to the axis of the corrugated pipe, and both ends of the butt-jointed straight rods 1 extend to both sides of the butt ends of the two sections of the corrugated pipe.

[0040] The second arc-shaped tube groove clamping rod 16 is clamped into the recessed ring of the first section of the corrugated pipe, and the fitting limit plates 11 at both ends of the second arc-shaped tube groove clamping rod 16 are installed on the connecting block 10 at one end of a pair of docking straight rods 1 through bolts 14 and nuts 12, so that the entire device is relatively fixed to the first section of the corrugated pipe.

[0041] Hold the U-shaped connecting rod 7 and rotate it toward the second arc-shaped tube groove clamping rod 16 or toward the first arc-shaped tube groove clamping rod 13, so that the rotating blocks 6 at both ends rotate relative to the limit rotating shaft 5. The limit clamping block 8 rotates synchronously with the rotating block 6, and its bottom is separated from the limit clamping groove 15, thereby releasing the limit on the pair of sliding sleeve frames 2.

[0042] Pull the U-shaped connecting rod 7 to make a pair of sliding sleeve frames 2 slide along a pair of docking straight rods 1. Preferably, the distance between the sliding sleeve frame 2 and the docking end is the same or approximately the same as the distance between the second arc-shaped tube groove clamping rod 16 and the docking end, ensuring that after the first arc-shaped tube groove clamping rod 13 is installed, the first arc-shaped tube groove clamping rod 13 and the second arc-shaped tube groove clamping rod 16 are evenly stressed, which is beneficial to improving the docking accuracy of the corrugated tube.

[0043] After the pair of sliding sleeves 2 slide into place, the U-shaped connecting rod 7 is rotated toward the direction of the first arc-shaped pipe groove clamping rod 13, so that the hypotenuse structure at the bottom of the limiting clamping block 8 passes through the through hole 3 and is clamped on one side wall of the limiting clamping groove 15 at the corresponding position, and the other end of the food limiting clamping block 8 is clamped on the other side wall of the limiting clamping groove 15 at the corresponding position. The pair of sliding sleeves 2 are limited on the pair of docking straight rods 1.

[0044] If there is an axial error between the second section of the bellows and the first section of the bellows, roll the second section of the bellows, or set a pull rope or a hand winch on the U-shaped connecting rod 7 to slightly lift the second section of the bellows and adjust its position. During this process, hold the U-shaped connecting rod 7 to keep it stable, so that the second section of the bellows is coaxially aligned with the first section of the bellows and then lowered.

[0045] The fitting limit plates 11 at both ends of the first arc-shaped tube groove clamping rod 13 are installed on the connecting blocks 10 of a pair of sliding sleeve frames 2 through bolts 14 and nuts 12, so that the first arc-shaped tube groove clamping rod 13 is sleeved in the recessed ring of the second section of the corrugated pipe, thereby ensuring the coaxial alignment of the two sections of the corrugated pipe, and the two sections of the threaded pipe can be docked, and the coaxiality of the two sections of the corrugated pipe can be ensured during the docking process.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bellows auxiliary docking device, characterized in that: The invention comprises a butt joint straight rod (1), a sliding sleeve (2), a U-shaped connecting rod (7), a sliding limit assembly, a connecting assembly, a first arc-shaped pipe groove clamping rod (13) and a second arc-shaped pipe groove clamping rod (16); a pair of butt joint straight rods (1) are respectively arranged in parallel on both sides of two sections of corrugated pipes, a pair of sliding sleeves (2) are respectively arranged on the pair of butt joint straight rods (1) in a slidable manner through the sliding limit assembly, and two ends of the U-shaped connecting rod (7) of an inverted U-shaped structure are respectively connected to the sliding limit assembly of the pair of sliding sleeves (2); two ends of the first arc-shaped pipe groove clamping rod (13) are respectively detachably connected to the pair of sliding sleeves (2) through the connecting assembly, and two ends of the second arc-shaped pipe groove clamping rod (16) are respectively detachably connected to one end of the pair of butt joint straight rods (1) through the connecting assembly, so that the first arc-shaped pipe groove clamping rod (13) and the second arc-shaped pipe groove clamping rod (16) can be respectively clamped on the two sections of corrugated pipes; Each group of the sliding limit assembly comprises a rotating mechanism and a limit block (8); one end of the limit block (8) is rotatably mounted on the top of the sliding sleeve frame (2) through the rotating mechanism, and a through hole (3) is formed on the top of the sliding sleeve frame (2), and the through hole (3) is located directly below the limit block (8); a plurality of limit slots (15) arranged at equal intervals are formed on the top surface of the docking straight rod (1), so that the bottom of the limit block (8) can pass through the through hole (3) and then be matched and clamped on one side wall of one of the limit slots (15), or the other end of the limit block (8) can be rotated and abutted on the other side wall of the limit slot (15) through the rotating mechanism.

2. The bellows auxiliary docking device according to claim 1 is characterized in that: The rotating mechanism comprises a connecting plate (4), a limiting rotating shaft (5), and a rotating block (6); a pair of connecting plates (4) are arranged on both sides of the top of the sliding sleeve frame (2); the limiting rotating shaft (5) is connected between the pair of connecting plates (4); the rotating block (6) is rotatably sleeved on the limiting rotating shaft (5) and is located between the pair of connecting plates (4); and a U-shaped connecting rod (7) is connected to the top of the rotating block (6).

3. The bellows auxiliary docking device according to claim 1 is characterized in that: The cross section of the limiting card slot (15) is an isosceles inverted triangle structure, the bottom of the limiting card block (8) is a hypotenuse structure, and the bevel angle of the hypotenuse structure is consistent with the bottom angle of the triangle structure, so that the bottom of the limiting card block (8) can match and abut against a side wall of the limiting card slot (15).

4. The bellows auxiliary docking device according to claim 1, characterized in that: The connection assembly comprises a fixing block (9), a connecting block (10) and a fitting limit plate (11); one end of the fixing block (9) used for connecting the first arc-shaped tube groove clamping rod (13) is connected to the sliding sleeve frame (2), one end of the fixing block (9) used for connecting the second arc-shaped tube groove clamping rod (16) is connected to the end of the docking straight rod (1), and the other end of the fixing block (9) is connected to the connecting block (10); the end of the first arc-shaped tube groove clamping rod (13) and the end of the second arc-shaped tube groove clamping rod (16) are both connected to the fitting limit plate (11), and the fitting limit plate (11) is connected to the connecting block (10) via a bolt (14) and a nut (12).

5. The bellows auxiliary docking device according to claim 1 or 4, characterized in that: The first arc-shaped tube groove clamping rod (13) and the second arc-shaped tube groove clamping rod (16) are both arc-shaped structures matching the minimum tube diameter of the corrugated tube, so that the first arc-shaped tube groove clamping rod (13) and the second arc-shaped tube groove clamping rod (16) can be matched and clamped in any recessed ring of the two sections of the corrugated tube.

6. The bellows auxiliary docking device according to claim 5, characterized in that: The height of the first arc-shaped tube groove clamping rod (13) and the height of the second arc-shaped tube groove clamping rod (16) are both smaller than the height of the U-shaped connecting rod (7).

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