阅读说明：本技术 一种管道用支撑固定装置 (Supporting and fixing device for pipeline ) 是由 不公告发明人 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种管道用支撑固定装置,属于水利管道工程元件领域。支撑柱的下端固定连接至底座,滑杆滑动连接至支撑柱,滑杆上开设有涡轮齿条,蜗杆可转动地连接至第一容纳槽,涡轮齿条和蜗杆配合,第一旋钮与蜗杆传动配合,滑杆的上端固定连接至第一支撑台,第二支撑台可转动地连接至第一支撑台,第二支撑台上固定连接有两个支撑板,连接管外侧壁上连接有两个转动杆,两个转动杆分别可转动地连接至两个支撑板上。转动杆绕支撑板转动,实现连接方向对接水利管道铺设方向,调整第二支撑台角度,消除角度偏差,第一旋钮调整水平高度；配合调整实现多角度的调节从而最大限度的适应水利管道的接入方向,减少应力,增加水利管道的使用寿命。(The invention discloses a supporting and fixing device for a pipeline, and belongs to the field of hydraulic pipeline engineering elements. The lower extreme fixed connection of support column to the base, slide bar sliding connection has seted up the rack and pinion on the slide bar, the worm rotationally is connected to first holding tank, rack and pinion cooperation, first knob and worm transmission cooperation, the upper end fixed connection of slide bar is to first supporting bench, the second supporting bench rotationally is connected to first supporting bench, two backup pads of fixedly connected with on the second supporting bench, be connected with two dwang on the connecting pipe lateral wall, two dwang rotationally are connected to two backup pads respectively. The rotating rod rotates around the supporting plate, the connection direction is butted with the water conservancy pipeline laying direction, the angle of the second supporting table is adjusted, the angle deviation is eliminated, and the horizontal height is adjusted by the first knob; thereby cooperation adjustment realizes the regulation of multi-angle furthest's adaptation water conservancy pipeline's access direction, reduces stress, increases water conservancy pipeline's life.)

1. The utility model provides a pipeline is with supporting fixing device which characterized in that, includes frame (1) and connecting pipe (2), wherein:

the rack (1) comprises a base (11), a support column (12), a worm wheel (13), a first knob (14), a positioning key (15), a sliding rod (16), a first support table (17), a second support table (18) and a first bolt (19), wherein the lower end of the support column (12) is fixedly connected to the base (11), a first sliding groove (121) used for accommodating the sliding rod (16) is formed in the support column (12) along the vertical direction, the sliding rod (16) is connected to the first sliding groove (121) in a sliding manner, a rack (162) is formed in the sliding rod (16) along the vertical direction, a first accommodating groove (123) is formed in the support column (12), the worm wheel (13) is rotatably connected to the first accommodating groove (123), a gear (131) is coaxially fixed on the worm wheel (13), and the gear (131) is matched with the rack (162), the first knob (14) penetrates through the first accommodating groove (123), a worm (141) is fixedly connected to one end of the first knob (14) in the first accommodating groove, and the worm wheel (13) is in transmission fit with the worm (141);

the upper end of the sliding rod (16) is fixedly connected to the first supporting platform (17), a circular groove is formed in the first supporting platform (17), the second supporting platform (18) is rotatably connected into the circular groove, a bolt hole is formed in the first supporting platform (17), an arc-shaped groove (183) is formed in the second supporting platform (18), the first bolt (19) penetrates through the arc-shaped groove (183) and is slidably connected to the bolt hole, and a first nut is matched with the first bolt (19);

the second supporting platform (18) is fixedly connected with two supporting plates (182), the outer side wall of the connecting pipe (2) is connected with two rotating rods (211), the two rotating rods (211) are coaxially arranged, and the two rotating rods (211) are respectively and rotatably connected to the two supporting plates (182);

support column (12) have seted up key draw-in groove (122) along the vertical direction, key logical groove (161) have been seted up to slide bar (16) corresponding position, navigation key (15) joint is in on key draw-in groove (122), just navigation key (15) slidable ground is connected to key logical groove (161).

2. The supporting and fixing device for the pipeline as claimed in claim 1, wherein the connecting pipe (2) comprises a middle pipe (21), two flexible pipes (22) and two mounting pipes (23), two ends of the middle pipe (21) are respectively and fixedly connected to one end of the two flexible pipes (22), the other end of the two flexible pipes (22) are respectively and fixedly connected to one end of the two mounting pipes (23), the rotating rod (211) is fixedly connected to the outer side wall of the middle pipe (21), and the flexible pipes (22) are corrugated pipes made of stainless steel;

the mounting pipe (23) further comprises an end cover (231), a second bolt (232), a first sealing sleeve (233), a first sealing ring (234), a second sealing sleeve (235), a second sealing ring (236) and a sealing gasket (237), the end cover (231) is fixedly connected to one end, far away from the middle pipe (21), of the mounting pipe (23), the first sealing sleeve (233) is slidably connected to the inner wall of the mounting pipe (23), the second sealing sleeve (235) is located at one end, close to the middle pipe (21), of the first sealing sleeve (233), the first sealing ring (234) is fixed to the inner ring of the first sealing sleeve (233), the cross section of the inner hole of the first sealing ring (234) is trapezoidal, and the large end of the inner hole of the first sealing ring (234) faces the end cover (231), the inner circle of second seal cover (235) is fixed with second sealing washer (236), a plurality of second bolt through-holes have all been seted up to end cover (231), first seal cover (233) and second seal cover (235), second bolt (232) pass the second bolt through-hole of second seal cover (235), the second bolt through-hole of first seal cover (233) and the second bolt through-hole of end cover (231) to with the cooperation of second nut, be equipped with seal ring (237) between the bolt head of second bolt (232) and second seal cover (235), second sealing washer (236) contain first operating condition and second operating condition at least:

when the second sealing ring (236) is in the first working state, the second sealing sleeve (235) is far away from the first sealing sleeve (233), and the second sealing ring (236) is separated from the first sealing ring (234);

when the second sealing ring (236) is in a second working state, the second sealing sleeve (235) is close to the first sealing sleeve (233), and the second sealing ring (236) presses the first sealing ring (234) to enable the first sealing ring (234) to contract inwards.

3. The supporting and fixing device for the pipeline as claimed in claim 1, wherein the base (11) is provided with a plurality of mounting holes (111).

Technical Field

The invention relates to the field of hydraulic pipeline engineering elements, in particular to a supporting and fixing device for a pipeline.

Background

China is wide in territory and complex in terrain, development in many places is limited by water, and in the era that the crisis of fresh water is more and more obvious, people need to reasonably and efficiently utilize water.

China does not claim to develop a large amount of underground water for sustainable development, because the underground water resource is limited, the underground water resource can only solve the current crisis but can not be sustainable, and the underground fountain can be more dangerous in the future, so the surface water resource is fully utilized, the artificial transportation water resource is required to be reasonably distributed, and the pipeline transportation water resource is used as the first choice for water conservancy transportation because the advantages of evaporation reduction, convenience in pressure maintaining and pressurization, high efficiency and the like are realized.

Water conservancy pipeline among the prior art is supporting when fixed, support piece can not adjust after fixed, be subject to support piece's mounted position, support piece often can exert extra bending force to the pipe fitting, it is comparatively difficult that ground is uneven or pipeline is fixed when having certain inclination to set up relatively ground, and the junction between pipe fitting and the pipe fitting is fixed more critical, because pipe fitting length is long, the fixed pipeline that can let forms complicated stress and forms the variant of different degree of multiple spot support, and the butt joint needs the coaxial line between two pipe fittings, the stress of kneck this moment is very big, in addition the vibrations of pipeline self, can make the pipeline kneck collapse more easily, thereby bring very big inconvenience for people's daily life and maintenance, consequently in order to reduce the stress of coupling department, provide a pipeline with supporting fixing device convenient to adjust.

Disclosure of Invention

The invention provides a supporting and fixing device for a pipeline, which can solve the problem that the supporting and fixing device for the water conservancy pipeline is inconvenient to adjust after being fixed in the prior art.

A supporting and fixing device for a pipeline comprises a rack and a connecting pipe, wherein:

the rack comprises a base, a support column, a worm wheel, a first knob, a positioning key, a slide bar, a first support table, a second support table and a first bolt, the lower end of the support column is fixedly connected to the base, the support column is provided with a first chute used for accommodating the slide bar along the vertical direction, the slide bar is connected to the first chute in a sliding manner, the slide bar is provided with a rack along the vertical direction, the support column is provided with a first accommodating groove, the worm wheel is rotatably connected to the first accommodating groove, a gear is coaxially fixed on the worm wheel and matched with the rack, the first knob penetrates through the first accommodating groove, one end of the first knob in the first accommodating groove is fixedly connected with a worm, and the worm wheel is in transmission fit with the worm;

the upper end of the sliding rod is fixedly connected to the first supporting platform, the first supporting platform is provided with a circular groove, the second supporting platform is rotatably connected into the circular groove, the first supporting platform is provided with a bolt hole, the second supporting platform is provided with an arc-shaped groove, the first bolt penetrates through the arc-shaped groove and is slidably connected to the bolt hole, and a first nut is matched with the first bolt;

the second support table is fixedly connected with two support plates, the outer side wall of the connecting pipe is connected with two rotating rods, the two rotating rods are coaxially arranged, and the two rotating rods are respectively and rotatably connected to the two support plates;

the support column has seted up the key draw-in groove along the vertical direction, the slide bar has seted up the key and has led to the groove corresponding to the position, the navigation key joint is in on the key draw-in groove, just navigation key slidable ground is connected to the key leads to the groove.

Furthermore, the connecting pipe comprises a middle pipe, two flexible pipes and two mounting pipes, two ends of the middle pipe are respectively and fixedly connected to one ends of the two flexible pipes, the other ends of the two flexible pipes are respectively and fixedly connected to one ends of the two mounting pipes, the rotating rod is fixedly connected to the outer side wall of the middle pipe, and the flexible pipes are corrugated pipes made of stainless steel;

the mounting pipe further comprises an end cover, a second bolt, a first sealing sleeve, a first sealing ring, a second sealing sleeve, a second sealing ring and a sealing washer, the end cover is fixedly connected to one end, away from the middle pipe, of the mounting pipe, the first sealing sleeve is slidably connected to the inner wall of the mounting pipe, the second sealing sleeve is located at one end, close to the middle pipe, of the first sealing sleeve, the first sealing ring is fixed to the inner ring of the first sealing sleeve, the cross section of the inner hole of the first sealing ring is trapezoidal, the large end of the inner hole of the first sealing ring faces the end cover, the second sealing ring is fixed to the inner ring of the second sealing sleeve, a plurality of second bolt through holes are formed in the end cover, the first sealing sleeve and the second sealing sleeve, and the second bolt penetrates through hole of the second sealing sleeve, The second bolt through-hole of first seal cover and end cover to with the cooperation of second nut, be equipped with seal ring between the bolt head of second bolt and the second seal cover, the second seal ring contains first operating condition and second operating condition at least:

when the second sealing ring is in a first working state, the second sealing sleeve is far away from the first sealing sleeve, and the second sealing ring is separated from the first sealing ring;

when the second sealing ring is in a second working state, the second sealing sleeve is close to the first sealing sleeve, and the second sealing ring presses the first sealing ring to enable the first sealing ring to contract inwards.

Furthermore, the base is provided with a plurality of mounting holes.

Has the advantages that: the invention provides a supporting and fixing device for pipelines, wherein a connecting pipe is used for connecting and connecting joints of two water conservancy pipelines, when a base is fixed, the ground for fixing is usually uneven, the pipe joint of the water conservancy pipeline cannot be exactly butted with the connecting pipe, at the moment, the connecting pipe is adjusted to enable a rotating rod to rotate around a supporting plate, the connecting direction of the connecting pipe is butted with the laying direction of the water conservancy pipelines, the angle of a second supporting platform relative to a first supporting platform is adjusted, the fixing of the connecting pipe in the horizontal plane direction is realized by fixing through a first bolt, the angle deviation generated when the base is fixed is eliminated, so that the connecting pipe can further adapt to the access direction of the water conservancy pipelines, the first knob is rotated to drive a worm to rotate, and a sliding rod is driven to vertically move along the direction of a positioning key, thereby adjusting the level of the connection pipe; therefore can realize during the cooperation adjustment multi-angle adjustment thereby furthest's adaptation water conservancy pipeline's access direction to reduce initial stress, increase water conservancy pipeline's life reduces unexpected emergence.

Drawings

Fig. 1 is a schematic perspective view of a supporting and fixing device for a pipeline according to the present invention;

FIG. 2 is a right side view of a support fixture for a pipeline in accordance with the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a top view of a supporting and fixing device for a pipeline according to the present invention;

FIG. 5 is an enlarged view of a portion of the structure at B in FIG. 3;

FIG. 6 is an enlarged view of a portion of the structure at C in FIG. 5;

FIG. 7 is an enlarged view of a portion of the structure shown at D in FIG. 6;

FIG. 8 is an enlarged view of a portion of the structure at E in FIG. 3;

fig. 9 is a schematic view of the connection relationship between the worm gear, the sliding rod and the rack and pinion.

Description of reference numerals:

1-a machine frame, 11-a base, 111-a mounting hole, 12-a support column, 121-a first sliding groove, 122-a key clamping groove, 123-a first accommodating groove, 13-a worm wheel, 131-a gear, 14-a first knob, 141-a worm, 15-a positioning key, 16-a sliding rod, 161-a key through groove, 162-a rack, 17-a first support table, 18-a second support table, 181-a second accommodating groove, 182-a support plate, 183-an arc groove, 184-a second sliding groove, 19-a first bolt, 2-a connecting pipe, 21-a middle pipe, 211-a rotating rod, 22-a flexible pipe, 23-a mounting pipe, 231-an end cover, 232-a second bolt, 233-a first sealing sleeve, 234-a first sealing ring, 235-a second sealing sleeve, 236-a second sealing ring, 237-a sealing gasket, 3-a support assembly, 31-a positioning plate, 311-a locking hole, 312-a locking hoop, 32-a connecting rod, 321-a third chute, 322-a positioning shaft, 34-a sliding block, 35-a matching block, 351-a transmission block, 352-a transmission rod, 353-a second knob, 36-a hinge rod. .

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

Specific example 1:

as shown in fig. 1 to 4, an embodiment of the present invention provides a supporting and fixing device for a pipeline, including a frame 1 and a connecting pipe 2, wherein:

the rack 1 comprises a base 11, a supporting column 12, a worm wheel 13, a first knob 14, a positioning key 15, a sliding rod 16, a first supporting platform 17, a second supporting platform 18 and a first bolt 19, wherein the base 11 is provided with a plurality of mounting holes 111, the lower end of the supporting column 12 is fixedly connected to the base 11, the supporting column 12 is provided with a first sliding groove 121 for accommodating the sliding rod 16 along the vertical direction, the sliding rod 16 is slidably connected into the first sliding groove 121, the sliding rod 16 is provided with a rack 162 along the vertical direction, the supporting column 12 is provided with a first accommodating groove 123, the worm wheel 13 is rotatably connected into the first accommodating groove 123, the worm wheel 13 is coaxially fixed with a gear 131, the gear 131 is matched with the rack 162, the first knob 14 penetrates through the first accommodating groove 123, one end of the first knob 14 in the first accommodating groove is fixedly connected with a worm 141, the worm wheel 13 is in transmission fit with the worm 141, the supporting column 12 is provided with a key clamping groove 122 along the vertical direction, a key through groove 161 is formed in the corresponding position of the sliding rod 16, the positioning key 15 is clamped on the key groove 122, and the positioning key 15 is slidably connected to the key through groove 161;

the upper end of the slide bar 16 is fixedly connected to the first supporting platform 17, the first supporting platform 17 is provided with a circular groove, the second supporting platform 18 is rotatably connected into the circular groove, the first supporting platform 17 is provided with a bolt hole, the second supporting platform 18 is provided with an arc-shaped groove 183, the first bolt 19 penetrates through the arc-shaped groove 183 and is slidably connected to the bolt hole, and the first nut is matched with the first bolt 19;

two backup pads 182 of fixedly connected with on second brace table 18 are connected with two dwang 211 on the connecting pipe 2 lateral wall, and two dwang 211 coaxial settings, two dwang 211 rotationally are connected to on two backup pads 182 respectively.

When the device is used, firstly, a water conservancy pipeline and the device are placed at a preset position, the first knob 14 is rotated to drive the worm 141 to rotate, the worm 141 drives the worm wheel 13 to rotate, the worm wheel 13 drives the gear 131 to rotate, the gear drives the rack 162 to move, the positioning key 15 plays a role in guiding to enable the slide bar 16 to move in the vertical direction, and after adjustment is finished, due to the self-locking principle of worm transmission, the support counter force borne by the slide bar 16 cannot enable the slide bar 16 to slide downwards, so that the connecting pipe 2 is adjusted to a required horizontal height, the supporting function is mainly played, and height adjustment in the vertical direction is realized; then the first bolt 19 can be loosened, the second support table 18 can rotate on the first support table 17 by a certain angle, so that the angle of the connecting pipe 2 connected to the water conservancy pipeline is adjusted, the axis of the connecting pipe 2 is in a same vertical plane with the preset axis of the water conservancy pipeline, the phenomenon that the joint of the water conservancy pipeline is subjected to overlarge stress due to dislocation in the horizontal direction is avoided, and the first bolt 19 can be locked for fixing after the adjustment is completed; and because the installation needs of unevenness or slope in ground, connecting pipe 2 needs to be certain angle with the plane of base 11 place, with two water conservancy pipeline knecks installation to the both ends of connecting pipe 2, connecting pipe 2 revolutes pivot pole 211 and rotates the back and reach the balance under the action of gravity, angle compensation when realizing the installation of unevenness or slope in ground, the axis collineation is predetermine with water conservancy pipeline to the axis that makes connecting pipe 2, is used for reducing the internal stress that receives when water conservancy pipeline is fixed.

Specific example 2:

in embodiment 1, since the common connection pipe 2 cannot absorb the variation of the thermal shrinkage after the pipeline installation, a large stress is easily generated between the water conservancy pipeline and the connection pipe 2, and the common connection pipe cannot adapt to the water conservancy pipelines of different specifications, in order to reduce the influence of external factors on the length of the water conservancy pipeline and improve the compatibility and the practicability, on the basis of embodiment 2, as shown in fig. 5 to 7, in this embodiment, the connection pipe 2 includes a middle pipe 21, two flexible pipes 22 and two installation pipes 23, two ends of the middle pipe 21 are respectively and fixedly connected to one end of the two flexible pipes 22, the other ends of the two flexible pipes 22 are respectively and fixedly connected to one end of the two installation pipes 23, a rotation rod 211 is fixedly connected to the outer side wall of the middle pipe 21, and the flexible pipes 22 are corrugated pipes made of stainless steel;

the mounting tube 23 further comprises an end cover 231, a second bolt 232, a first sealing sleeve 233, a first sealing ring 234, a second sealing sleeve 235, a second sealing ring 236 and a sealing washer 237, the end cover 231 is fixedly connected to one end of the mounting tube 23 far away from the middle tube 21, the first sealing sleeve 233 is slidably connected to the inner wall of the mounting tube 23, the second sealing sleeve 235 is located at one end of the first sealing sleeve 233 close to the middle tube 21, the first sealing ring 234 is fixed to the inner ring of the first sealing sleeve 233, the cross section of the inner hole of the first sealing ring 234 is trapezoidal, the large end of the inner hole of the first sealing ring 234 is arranged towards the end cover 231, the second sealing ring 236 is fixed to the inner ring of the second sealing sleeve 235, a plurality of second bolt through holes are formed in the end cover 231, the first sealing sleeve 233 and the second sealing sleeve 235, and the second bolt 232 penetrates through holes of the second sealing sleeve 235, The second bolt through hole of first seal cover 233 and the second bolt through hole of end cover 231 to with the cooperation of second nut, be equipped with seal ring 237 between the bolt head of second bolt 232 and the second seal cover 235, second seal ring 236 contains first operating condition and second operating condition at least:

when the second sealing ring 236 is in the first working state, the second sealing sleeve 235 is far away from the first sealing sleeve 233, and the second sealing ring 236 is separated from the first sealing ring 234;

when the second seal 236 is in the second operating state, the second seal 235 is adjacent to the first seal 233, and the second seal 236 presses against the first seal 234, causing the first seal 234 to contract inwardly.

When the device is used, a water conservancy pipeline is inserted into the installation pipe 23, the section of the inner hole of the first sealing ring 234 is trapezoidal, so that when the diameter of the water conservancy pipeline is within the sealing range of the first sealing ring 234, the first sealing ring 234 and the second sealing ring 236 are deformed and attached to the outer surface of the water conservancy pipeline, the second nut is screwed at the moment, the second sealing sleeve 235 moves towards the first sealing sleeve 233 under the driving of the second bolt 232, the second sealing ring 236 presses towards the first sealing ring, the second sealing ring 236 provides additional pressing force for the first sealing ring 234 at the moment, the water conservancy pipelines with different diameters are sealed and fixed, the flexible pipe 22 is a corrugated pipe made of stainless steel, certain length change can be absorbed, the structural strength of the flexible pipe is not affected, and the length compensation function is provided.

Specific example 3:

in embodiment 2, because the connection tube 2 is not fixed reliably enough, and in actual use, in order to ensure structural stability, sometimes the support device needs to be rigid, in order to realize more stable support, and in order to facilitate the function of opening or closing the flexible tube 22 of the connection tube 2, on the basis of embodiment 2, as shown in fig. 5, the present embodiment further includes a support assembly 3, the support assembly 3 further includes a positioning plate 31, a connecting rod 32, a slider 34, a fitting block 35, and a hinge rod 36, three positioning plates 31 are respectively located below the middle tube 21 and the two mounting tubes 23, the positioning plate 31 is provided with a fitting groove corresponding to the outer diameter of the connection tube 2, the positioning plate 31 is provided with two locking holes 311, the locking holes are provided with a locking hoop 312 in a fitting manner, the locking hoop 312 is U-shaped, two pins of the locking hoop 312 are provided with threads, two pins of the locking hoop 312 respectively penetrate through the two locking holes and are connected with a locking nut in a fitting manner, two positioning plates 31 below the mounting tube 23 are hinged to the connecting rods 32, the positioning plate 31 below the middle tube 21 is hinged to the sliding block 34, the middle part of the hinged rod 36 is hinged to the sliding block 34, two ends of the hinged rod 36 are respectively hinged to the two connecting rods 32, a second accommodating groove 181 is formed in the second supporting platform 18, a second sliding groove 184 is formed in the second accommodating groove 181 along the vertical direction, the sliding block 34 is slidably connected into the second sliding groove 184, a third sliding groove 321 is formed in the connecting rod 32, the positioning shaft 322 penetrates through the third sliding groove 321 to be fixedly connected to the inner wall of the second accommodating groove 181, the sliding block 34 is provided with a matching sliding groove which is obliquely arranged, the matching block 35 is slidably connected into the matching sliding groove, a transmission block 351 is fixedly connected onto the matching block 35, a transmission rod 352 is cooperatively connected with the transmission rod 352, the transmission rod 352 is rotatably connected into the second accommodating groove 181, and one end of the transmission rod 352 penetrates through the outer side of the second supporting platform 18, and a second knob 353 is fixedly connected to the transmission rod 352 through one end of the second support platform 18.

When the device is used, when the function of the flexible tube 22 needs to be started, the second knob 353 is rotated to drive the transmission rod 352 to rotate, so that the transmission block 351 is driven to move, the matching block 35 fixed with the transmission block 351 also moves along with the transmission block, the sliding block 34 is driven to move upwards in the second sliding groove in the vertical direction, the hinge rod 36 also moves upwards, so that one end, away from the hinge rod 36, of the connecting rod 32 is driven to move downwards, the positioning plate 31 below the middle tube 21 is attached to the middle tube 21 to provide supporting force, the positioning plate is further fixed through the locking hoop 312, and at the moment, the flexible tube 22 can realize the length compensation function;

when the function of the flexible pipe 22 needs to be deactivated, the second knob 353 is rotated in the reverse direction to drive the transmission rod 352 to rotate, so that the transmission block 351 is driven to move, the matching block 35 fixed with the transmission block 351 also moves along with the transmission block, the sliding block 34 is driven to move downwards in the second sliding groove in the vertical direction, the hinge rod 36 also moves downwards, so that one end, away from the hinge rod 36, of the connecting rod 32 is driven to move upwards, the positioning plate 31 below the middle pipe 21 is separated from the middle pipe 21, the positioning plate 31 below the mounting pipe 23 is attached to the outer side wall of the mounting pipe 23 to provide supporting force, the supporting force is further fixed through the locking hoop 312, and the force of the length change is resisted by the supporting plate 31 and the locking hoop 312, so that the length compensation function of the flexible pipe 22 is deactivated.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.