Pipeline replacement construction device in narrow space below building

Abstract

The invention belongs to the technical field of pipeline construction, and particularly relates to a construction device for replacing a pipeline in a narrow space below a building, which comprises two moving vehicles used for bearing and lowering the pipeline, a traction rope is arranged between the two moving vehicles, and each moving vehicle comprises a cross beam, walking wheels are arranged on two sides of the bottom of each cross beam; the height of the cross beam is smaller than that of the laid pipeline; the pipe sleeve is rotationally arranged in the middle of the top of the cross beam, the pipe sleeve comprises a semicircular part and linear parts fixedly arranged at the two ends of the semicircular part, a channel allowing a pipeline to enter the pipe sleeve is formed between the two linear parts, and when the pipeline is located in the semicircular part, the pipeline and the installed pipeline are in a centering state; the stand columns are slidably arranged on two sides of the top of the cross beam; and the bracket is arranged on the cross beam in a lifting mode in the height direction, and a discharging opening capable of being opened is formed in the bottom of the bracket. The device has the advantage of facilitating pipeline replacement construction operation in a narrow space below a building.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline construction; in particular, the present invention relates to a pipeline replacement construction device in a narrow space under a building. Background Art

[0002] When performing pipeline replacement construction work under a building, due to space limitations, large equipment such as pipeline transfer and installation cannot be effectively put into use, causing inconvenience in pipeline replacement construction work in the narrow space under the building. In particular, the currently commonly used pipeline transfer is generally carried out by hoisting operations, and there are also some small carts used to move pipelines on the ground. However, considering the narrow space under the building, it is often necessary to perform related operations on the pipeline during pipeline construction, such as transfer, lowering, alignment, and installation and fixation. These operations are relatively simple. In view of this, the present application provides a pipeline replacement construction device for a narrow space under a building. Summary of the invention

[0003] In view of this, the present invention provides a construction device for replacing pipelines in a narrow space under a building, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0004] In order to achieve the above-mentioned object, the present invention provides a construction device for replacing pipelines in a narrow space under a building, comprising two mobile vehicles for carrying and lowering pipelines, a traction rope is arranged between the two mobile vehicles, and the mobile vehicles include:

[0005] A crossbeam, wherein both sides of the bottom of the crossbeam are provided with running wheels, and the height of the crossbeam is less than the height of the laid pipeline;

[0006] A pipe sleeve is rotatably arranged at the middle position of the top of the crossbeam, the pipe sleeve comprises a semicircular portion and straight portions fixedly arranged at both ends of the semicircular portion, a passage for the pipe to enter the pipe sleeve is formed between the two straight portions, and when the pipe is located in the semicircular portion, the pipe is in a concentric state with the installed pipe;

[0007] The upright posts are slidably arranged on both sides of the top of the beam and are used to push the pipes on the beam from the channel into the pipe sleeves;

[0008] The bracket is arranged on the beam in a liftable manner in the height direction and is used for placing the pipes to be laid. The bottom of the bracket is provided with an openable discharge port, and the pipes on the bracket can fall onto the beam from the discharge port.

[0009] In the aforementioned pipe replacement construction device for a narrow space under a building, optionally, an arc-shaped through groove is opened on the semicircular part, an arc-shaped slider is slidably arranged in the arc-shaped through groove, and the arc-shaped slider is fixedly mounted on the crossbeam. When the arc-shaped slider is located at both ends of the arc-shaped through groove, the channel is in a state of facing two columns respectively.

[0010] In the aforementioned pipe replacement construction device under a building, optionally, an arc-shaped rack is provided on the outer surface of the semicircular part, a transmission gear is rotatably mounted on the crossbeam, the top of the transmission gear is meshed with the arc-shaped rack, and two driving assemblies for driving the transmission gear to rotate forward or reverse are slidably provided on the crossbeam, and the two driving assemblies are respectively connected to two columns.

[0011] In the aforementioned pipe replacement construction device under a building, optionally, the driving assembly includes a spur rack and a driving gear, the driving gear is coaxially fixed on the transmission gear, the spur rack is installed on the crossbeam in a transverse sliding manner, and the top of the spur rack is meshed with the driving gear.

[0012] In the aforementioned pipe replacement construction device for a narrow space under a building, optionally, a guide rope is slidably arranged between the ends of the two straight portions, buckles are arranged at both ends of the guide rope, a suspension assembly for engaging with the buckles is arranged on the column, and when the pipe sleeve is in a state where the channel is facing upward, the guide rope is pressed tightly in the pipe sleeve by the pipe.

[0013] In a pipe replacement construction device in a narrow space under a building as described above, optionally, the hanging assembly includes a longitudinal plate, a hanging rod, a rod sleeve, a first spring, a transverse plate and a wedge block. Two longitudinal plates are arranged in the column, and the two longitudinal plates are relatively distributed. The hanging rod is fixedly installed at the top ends of the opposite sides of the two longitudinal plates, and the outer sleeve of the hanging rod is provided with a rod sleeve, and the rod sleeve is slidably installed in the column in the height direction. The first spring is arranged between the rod sleeve and the hanging rod, and one transverse plate is arranged corresponding to each of the two longitudinal plates, and the transverse plate is sleeved at the bottom end of the vertical plate. The wedge block is fixedly installed at the end of the transverse plate away from the vertical plate, and the wedge block is inclined upward. The wedge block is used to be squeezed to both sides by the straight part so that the transverse plate drives the vertical plate to move to both sides, thereby switching the opposite ends of the two hanging rods from a close contact state to a separated state.

[0014] In the aforementioned pipe replacement construction device for a narrow space under a building, optionally, a rope groove is provided on the inner surface of the pipe sleeve, and when the pipe is located in the semicircular part, the guide rope is received in the rope groove, and the two buckles are respectively located at the ends of the two straight parts, the pipe sleeve is in a channel-facing state, and when one of the buckles is hung on the hanging rod, the guide rope is in a horizontal state.

[0015] In the aforementioned pipe replacement construction device under a building, optionally, a receiving groove is provided at the bottom of the column, an opening is provided on the side of the receiving groove facing the pipe sleeve, and the height of the opening is smaller than the bottom end height of the channel when the pipe sleeve is in a horizontal state.

[0016] In a pipe replacement construction device for a narrow space under a building as described above, optionally, the buckle includes a connecting column and a hook, the connecting column is fixed to the end of the guide rope, the hook is fixed to the end of the connecting column away from the guide rope, and when the end of the connecting column abuts against the outer surface of the straight part, the hook is parallel to the straight part, and the hook is used to hang on the suspension rod.

[0017] In the aforementioned pipe replacement construction device under a building, optionally, a locking plate that can slide in the height direction is provided inside the crossbeam, a locking rod is provided on the side of the column, locking grooves are provided on both sides of the bottom of the spur rack, and a guide groove is provided on the column. When any column moves to the position where the guide rope is in a tightened state, the locking plate pushes the locking rod corresponding to the column in contact with the spur rack to be inserted into the locking groove.

[0018] The invention discloses a construction device for replacing pipes in a narrow space below a building. The device adopts the cooperation of pipe sleeves, columns, suspension components, guide ropes and buckles, and can realize the transfer and one-by-one installation, positioning and fixing of pipes when replacing pipes in the narrow space below the building. The setting of the guide rope not only realizes flexible support for the pipe, but also can automatically realize tightening and bending by cooperating with the pipe sleeve, so as to facilitate the lowering operation of the pipe and better protect the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The disclosure of the present invention will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the present invention when the pipeline is lowered onto the beam.

[0021] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle.

[0022] Figure 3 For the present invention Figure 1 Enlarged view of point B in the middle.

[0023] Figure 4 For the present invention Figure 3 Enlarged view of point C in the middle.

[0024] Figure 5 For the present invention Figure 1Front view of a single mobile vehicle.

[0025] Figure 6 For the present invention Figure 5 Enlarged view of point D in the middle.

[0026] Figure 7 It is a schematic diagram of the cross beam and the column after being cut open.

[0027] Figure 8 For the present invention Figure 7 Enlarged view of point E in the middle.

[0028] Fig. 9 For the present invention Figure 7 Enlarged view of point F in the middle.

[0029] Fig.10 It is a schematic diagram of a crossbeam of the present invention after being cut open.

[0030] Fig.11 It is a schematic diagram of a column of the present invention after being cut open.

[0031] Fig.12 It is a schematic diagram of the rod sleeve, driving assembly and guide rope of the present invention.

[0032] Fig.13 It is a structural schematic diagram of the suspension assembly of the present invention.

[0033] Fig.14 For the present invention Fig.13 Schematic diagram of the splitting.

[0034] Reference numerals: 1-traction rope; 2-crossbeam; 3-travel wheel; 4-tube sleeve; 4.1-semicircular part; 4.2-straight part; 5-upright column; 6-bracket; 7-arc-shaped through groove; 8-arc-shaped slider; 9-arc-shaped rack; 10-transmission gear; 11-driving assembly; 11.1-straight rack; 11.2-driving gear; 12-guide rope; 13-buckle; 13.1-connecting column; 13.2 - hook; 14- suspension assembly; 14.1- longitudinal plate; 14.2- suspension rod; 14.3- rod sleeve; 14.4- first spring; 14.5- transverse plate; 14.6- wedge; 15- rope groove; 16- receiving groove; 17- locking plate; 18- locking rod; 19- locking groove; 20- guide groove; 21- support plate; 22- longitudinal screw rod; 23- L-shaped longitudinal beam; 24- plug plate; 25- transverse screw rod; DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figures 1 to 14 As shown, the present invention provides a pipeline replacement construction device in a narrow space under a building, comprising two mobile vehicles for carrying and lowering pipelines, and a traction rope 1 is arranged between the two mobile vehicles. During the pipeline replacement construction process, the two mobile vehicles are used to carry and lower the pipelines, so that the mobile vehicles can more conveniently perform the displacement and installation construction of the pipeline in the narrow space under the building.

[0037] During the construction process, the pipeline is hoisted from the ground to the bottom of the building by hoisting equipment, and then the pipeline is lowered onto two mobile vehicles. Then, the pipeline is displaced by pulling the traction rope 1, so that the pipeline is moved to the pipeline installation position and then lowered to achieve pipeline installation construction.

[0038] The mobile vehicle includes: a crossbeam 2, both sides of the bottom of the crossbeam 2 are provided with walking wheels 3, the height of the crossbeam 2 is less than the height of the laid pipe; a pipe sleeve 4, which is rotatably arranged in the middle position of the top of the crossbeam 2, and the pipe sleeve 4 includes a semicircular part 4.1 and straight parts 4.2 fixedly arranged at both ends of the semicircular part 4.1, and a channel for the pipe to enter the pipe sleeve 4 is formed between the two straight parts 4.2, and when the pipe is located in the semicircular part 4.1, the pipe and the installed pipe are in a concentric state; columns 5, which are slidably arranged on both sides of the top of the crossbeam 2, and are used to push the pipe on the crossbeam 2 from the channel into the pipe sleeve 4; a bracket 6, which is liftably arranged on the crossbeam 2 in the height direction, and is used to place the pipe to be laid, and the bottom of the bracket 6 is provided with an openable discharge port, and the pipe on the bracket 6 can fall onto the crossbeam 2 from the discharge port.

[0039] The crossbeam 2 is the integral supporting part of the mobile vehicle, and the displacement of the pipeline is realized by the running wheels 3 on the ground. The height of the bracket 6 is greater than the height of the pipeline when it is laid. The laid pipeline is first placed on the bracket 6. After the pipeline is moved to the installation position, the pipeline on the bracket 6 is lowered from the feeding port to the top of the crossbeam 2 at the side of the pipe sleeve 4. The pipe sleeve 4 is rotated to the direction of the opening facing the pipeline on the crossbeam 2. At this time, the channel is facing the pipeline on the top of the crossbeam 2.

[0040] Then, push the column 5 on the top of the crossbeam 2 on one side of the pipeline, and push the pipeline on the top of the crossbeam 2 from the channel into the pipe sleeve 4 during the displacement of the column 5 toward the pipe sleeve 4. Then, rotate the pipe sleeve 4 to switch it to a state where the channel faces upward. At this time, the pipeline is located in the semicircular part 4.1, the pipeline and the semicircular part 4.1 are in a concentric state, and the pipeline is located at a preset installation position. Then, the installation and fixation of the pipeline can be realized.

[0041] After the installation and fixation of the pipeline in the pipe sleeve 4 is completed, the mobile vehicle is directly moved to the tail of the pipeline so that the pipe sleeve 4 is pulled out from the bottom of the installed and fixed pipeline to facilitate the installation construction of the next pipeline.

[0042] When the sleeve 4 is in a horizontal state, the height of the straight portion 4.2 on one side of the channel cavity matches the top height of the beam 2, so that the pipe enters the channel from the top of the beam 2 and moves from the channel to the semicircular portion 4.1.

[0043] The semicircular portion 4.1 is provided with an arc-shaped through groove 7, in which an arc-shaped slider 8 is slidably arranged, and the arc-shaped slider 8 is fixedly mounted on the cross beam 2. When the arc-shaped slider 8 is located at both ends of the arc-shaped through groove 7, the passage is in a state of facing the two columns 5 respectively. The arc-shaped slider 8 cooperates with the arc-shaped through groove 7, so that the pipe sleeve 4 can stably rotate around the axis of the semicircular portion 4.1. At the same time, the pipe sleeve 4 is stably supported on the cross beam 2.

[0044] An arc-shaped rack 9 is provided on the outer surface of the semicircular part 4.1, a transmission gear 10 is rotatably mounted on the crossbeam 2, the top of the transmission gear 10 is meshed with the arc-shaped rack 9, and two driving components 11 are slidably provided on the crossbeam 2 for driving the transmission gear 10 to rotate forward or reversely, and the two driving components 11 are respectively connected to the two columns 5.

[0045] Specifically, by driving the transmission gear 10 to rotate forward or reversely through the driving component 11, the transmission gear 10 and the arc-shaped rack 9 can be used to control the forward and reverse rotation of the pipe sleeve 4. At the same time, after the pipe sleeve 4 rotates, the engagement of the transmission gear 10 and the arc-shaped rack 9 can fix the pipe sleeve 4 in the rotated state.

[0046] Furthermore, the driving assembly 11 comprises a spur rack 11.1 and a driving gear 11.2, the driving gear 11.2 is coaxially fixed on the transmission gear 10, the spur rack 11.1 is slidably mounted on the crossbeam 2 in the transverse direction, and the top of the spur rack 11.1 is meshed with the driving gear 11.2.

[0047] Specifically, when the pipe sleeve 4 is in a state with the channel facing upward, the two upright posts 5 are symmetrically distributed on both sides thereof, and the distance between the two upright posts 5 matches the inner diameter of the semicircular portion 4.1, and the two ends of the spur rack 11.1 are in contact with the opposite surfaces of the two upright posts 5. This state is the state when the pipes are butt-jointed. After the pipes are butt-jointed, the pipe sleeve 4 is pulled out from the bottom of the butt-jointed pipes by pulling the moving vehicle.

[0048] A guide rope 12 is slidably arranged between the ends of the two straight portions 4.2, and buckles 13 are arranged at both ends of the guide rope 12. A suspension assembly 14 for engaging with the buckle 13 is arranged on the column 5. When the pipe sleeve 4 is in a state with the channel facing upward, the guide rope 12 is pressed tightly in the pipe sleeve 4 by the pipeline.

[0049] Specifically, when the pipe sleeve 4 is in a horizontal position, the buckle 13 on one side of the pipe on the crossbeam 2 falls into the column 5, while the buckle 13 on the other side of the guide rope 12 is located on the pipe sleeve 4, and the portion of the guide rope 12 between the two straight portions 4.2 is in a taut state.

[0050] When the column 5 located on one side of the pipe on the crossbeam 2 moves toward the pipe sleeve 4 and pushes the pipe into the channel, the pipe continuously squeezes the portion of the guide rope 12 located in the pipe sleeve 4. When the pipe enters the pipe sleeve 4, the bottom end of the guide rope 12 is continuously pulled toward the position of the pipe sleeve 4. After the vertical center line of the pipe crosses the channel, the column 5 of the pipe is pushed to contact the spur rack 11.1.

[0051] Afterwards, continue to push the column 5 facing the channel, and the column 5 pushes the spur rack 11.1 to move. At this time, the spur rack 11.1 drives the pipe sleeve 4 to rotate through the driving gear 11.2, the transmission gear 10 and the arc-shaped rack 9. During the rotation of the pipe sleeve 4, the guide rope 12 will continue to be pulled into the pipe sleeve 4 due to the pressure of the pipeline. When the pipeline enters the semicircular part 4.1, the guide rope 12 is in a state of adaptation with the pipe sleeve 4, and the two buckles 13 are stably fixed on the outer ends of the two straight parts by the pulling action of the guide rope 12.

[0052] When the sleeve 4 rotates to a state where the channel faces upward, the buckle 13 originally located at the top of the sleeve 4 will be snapped onto the suspension assembly 14 located on the column 5 on the front side of the sleeve 4 in the rotation direction. At this time, the guide rope 12 is pressed in a taut state by the pipeline, and one of the two buckles 13 is suspended by the suspension assembly 14, and the other buckle 13 is pressed against one of the straight parts.

[0053] After the pipes are docked and installed, the pipe sleeve 4 is pulled out from the bottom of the installed pipe by a mobile vehicle, and then the column 5 corresponding to the suspension assembly 14 of the suspension buckle 13 is moved outward. At this time, the buckle 13 following the displacement of the column 5 pulls the guide rope 12 to move, so that the guide rope 12 is tightened and the pipe sleeve 4 keeps the channel facing upward.

[0054] Afterwards, the operating bracket 6 is moved downward and the discharge port is opened, so that the next pipe to be installed falling from the discharge port falls into the portion of the guide rope 12 located between the pipe sleeve 4 and the buckle 13, and the guide rope 12 is used to flexibly support the pipe.

[0055] Then the column 5 corresponding to the suspension component 14 without the hanging buckle 13 is further displaced toward the other column 5. At this time, the driving component 11 causes the pipe sleeve 4 to continue to rotate. During the rotation of the pipe, the guide rope 12 located at the bottom of the pipe is deflected and tilted downward at one end close to the pipe sleeve 4, and finally the pipe is placed on the beam 2.

[0056] The suspension assembly 14 includes a longitudinal plate 14.1, a suspension rod 14.2, a rod sleeve 14.3, a first spring 14.4, a transverse plate 14.5 and a wedge 14.6. Two longitudinal plates 14.1 are arranged in the column 5. The two longitudinal plates 14.1 are arranged opposite to each other. The suspension rod 14.2 is fixedly installed at the top ends of the opposite sides of the two longitudinal plates 14.1. The outer sleeve of the suspension rod 14.2 is provided with a rod sleeve 14.3, and the rod sleeve 14.3 is slidably installed in the column 5 in the height direction. The first spring 14.4 It is arranged between the rod sleeve 14.3 and the hanging rod 14.2, and a transverse plate 14.5 is arranged corresponding to each of the two longitudinal plates 14.1, and the transverse plate 14.5 is sleeved on the bottom end of the vertical plate, and the wedge block 14.6 is fixedly installed at the end of the transverse plate 14.5 away from the vertical plate, and the wedge block 14.6 is inclined upward, and the wedge block 14.6 is used to be squeezed to both sides by the straight part 4.2 so that the transverse plate 14.5 drives the vertical plate to move to both sides, and the opposite ends of the two hanging rods 14.2 are switched from a close contact state to a separated state.

[0057] In the initial state, the first spring 14.4 makes the suspension rod 14.2 extend out of the rod sleeve 14.3. At this time, the opposite ends of the two suspension rods 14.2 in the same suspension component 14 are in contact. When the sleeve 4 rotates to the horizontal state, the wedge block 14.6 in the suspension component 14 opposite to the channel is squeezed by the two sides of the straight part and moves in opposite directions. At this time, the two horizontal plates 14.5 move in opposite directions and drive the two suspension rods 14.2 to move in opposite directions through the vertical plate 14.1. During the separation of the two suspension rods 14.2, the buckles 13 suspended thereon are detached.

[0058] The inner surface of the sleeve 4 is provided with a rope groove 15, and when the pipeline is located in the semicircular part, the guide rope 12 is received in the rope groove 15, and the two buckles 13 are respectively located at the ends of the two straight parts 4.2, the sleeve 4 is in a channel-oriented state, and when one of the buckles 13 is suspended on the suspension rod 14.2, the guide rope 12 is in a horizontal state.

[0059] The bottom of the column 5 is provided with a receiving groove 16, and an opening is provided on the side of the receiving groove 16 facing the pipe sleeve 4, and the height of the opening is less than the bottom end height of the passage when the pipe sleeve 4 is in a horizontal state. By providing the receiving groove 16, the buckle 13 can be effectively received in the receiving groove 16 together with the guide rope 12 after being separated from the hanging rod 14.2, so as to ensure that the buckle 13 is effectively pulled out during the subsequent tightening of the guide rope 12.

[0060] The buckle 13 includes a connecting column 13.1 and a hook 13.2. The connecting column 13.1 is fixed to the end of the guide rope 12, and the hook 13.2 is fixed to the end of the connecting column 13.1 away from the guide rope 12. When the end of the connecting column 13.1 abuts against the outer surface of the straight part, the hook 13.2 is parallel to the straight part. The hook 13.2 is used to hang on the suspension rod 14.2.

[0061] Specifically, when the sleeve 4 rotates from the horizontal state to the vertical state, in the rotation direction of the sleeve 4, the two suspension rods 14.2 in the suspension assembly 14 located at the front side are located at the lowest position and the opposite ends are in contact, so that the hook 13.2 located at the front side can be hung on the suspension rod 14.2.

[0062] A locking plate 17 that can slide in the height direction is arranged inside the crossbeam 2, a locking rod 18 is arranged on the side of the column 5, and locking grooves 19 are arranged on both sides of the bottom of the spur rack 11.1. A guide groove 20 is opened on the column 5, and when any column 5 moves to the position where the guide rope 12 is in a taut state, the locking plate 17 pushes the locking rod 18 corresponding to the column 5 in contact with the spur rack 11.1 to be inserted into the locking groove 19.

[0063] In this way, in the process of pulling the column 5 corresponding to the suspension component 14 that suspends the buckle 13 away from the sleeve 4, the guide rope 12 is gradually tightened, and after the column 5 moves to the farthest position away from the sleeve 4, the guide groove 20 thereon causes the locking plate 17 to operate, and the locking plate 17 presses the locking rod 18 on the other column 5 into the locking groove 19, so that the other column 5 is integrated with the spur rack 11.1 through the locking rod 18.

[0064] When the pipeline falls to the position where the guide rope 12 is located outside the sleeve 4, the sleeve 4 will not deflect rapidly under the pipeline pressure because the column 5 connected to the spur rack 11.1 through the locking rod 18 remains stationary.

[0065] Afterwards, the column 5 connected to the spur rack 11.1 is displaced toward one side of the pipeline, driving the spur rack 11.1 to move, and at this time, driving the pipe sleeve 4 to deflect toward one side of the pipeline, and lowering the pipeline onto the crossbeam 2. At the same time, the buckle 13 located at the other end of the pipe sleeve 4 abutting on the straight part will push up the rod sleeve 14.3 and the hanging rod 14.2 in the process of crossing over the hanging rod 14.2 on the column 5 connected to the spur rack 11.1. When the pipeline is lowered onto the crossbeam 2, the pipe sleeve 4 is in a horizontal state, and the straight part presses down the wedge block to make the two hanging rods 14.2 in the hanging assembly 14 of the hanging buckle 13 move away from each other, and release the hanging buckle 13.

[0066] Afterwards, the column 5 on one side of the pipeline is pushed toward the side of the pipe sleeve 4, and the guide groove 20 gradually releases the locking plate 17, so that the locking rod 18 inserted into the spur rack 11.1 is separated from the locking groove 19, so that the column 5 connected as a whole with the spur rack 11.1 is separated from the spur rack 11.1.

[0067] The feed opening is arranged opposite to the middle of the cross beam 2 , and a support plate 21 is arranged below the feed opening. Both ends of the support plate 21 are arranged to be detachably connected to two columns 5 respectively, and the height of the support plate 21 is greater than the height of the pipe sleeve 4 .

[0068] When the pipeline is lowered, the bracket 6 is lowered so that the pipeline at the lowest position in the bracket 6 falls onto the support plate 21 .

[0069] When applying the solution of this embodiment, the following process can be followed:

[0070] ① Keep the bracket 6 at the highest position, and use the ground lifting equipment to lower the new pipeline to be installed into the bracket 6, and the pipeline is piled up in the bracket 6. After adjusting the two mobile vehicles to the direction of pipeline laying, pull the traction rope 1 to make the two mobile vehicles synchronously transfer the pipeline to the installation position of the first section of the pipeline.

[0071] ② Make the pipe sleeve 4 in the state of the passage facing right. At this time, the right hook is suspended on the right hanging rod 14.2, and the guide rope 12 between the right top end of the pipe and the right column 5 is in a taut state. At this time, the left column 5 is flush with the left side of the discharge port, and the support plate is fixed on the left column 5, and the support plate is just below the discharge port.

[0072] ③ The two ends of the bracket 6 are connected with longitudinal screw rods 22. The longitudinal screw rods 22 are operated to control the bracket 6 to slowly descend, so that the first pipe in the bracket 6 from bottom to top falls onto the support plate 21. The bracket 6 is slidably installed on the main body of the bracket 6 corresponding to the L-shaped longitudinal beams 23 on both sides of the discharge port, and is limited to the state of clamping the side of the pipe by the plug plate 24. Then, the plug plate 24 is pulled out, and the L-shaped longitudinal beams 23 on both sides are displaced away from the pipe, so that the L-shaped longitudinal beams 23 are stored in the main body of the bracket 6, and then the longitudinal screw rods 22 are operated to make the bracket 6 rise by a distance of the pipe diameter, and then the L-shaped longitudinal beams 23 are displaced in the direction of the pipe, so that the L-shaped longitudinal beams 23 are supported at the bottom of the second pipe, and then the bracket 6 is moved up to separate the first pipe from the second pipe.

[0073] ④ Push the first pipe on the support plate 21 onto the tightened guide rope 12 between the pipe sleeve 4 and the right column 5, so that the first pipe falls onto the guide rope 12. At this time, the right column 5 moves the lock plate 17 upward through the right guide groove 20, so that the left lock rod 18 is inserted into the lock groove 19 on the left side of the spur rack 11.1, and then the left column 5 is connected to the left spur rack 11.1 as a whole. After the pipe falls onto the guide rope 12, since the column 5 is stationary, the spur rack 11.1 cooperates with the drive gear 11.2, the transmission gear 10 and the arc rack 9 to lock the pipe sleeve 4, and then the guide rope 12 can stably support the pipe.

[0074] ⑤ The left column 5 moves to the right. At this time, the driving assembly 11 cooperates with the transmission gear 10 and the arc-shaped rack 9 to rotate the pipe sleeve 4 to the right, and the pipe on the guide rope 12 is lowered to the crossbeam 2. At the same time, the right straight part 4.2 moves downward to the horizontal state, and the right wedge block 14.6 is squeezed to separate the two right hanging rods 14.2, and then the right buckle 13 originally hung on the right hanging rod 14.2 falls into the receiving groove 16.

[0075] ⑥ The right column 5 moves to the left, and the right column 5 pushes the pipe from the channel into the pipe sleeve 4, and the right guide groove 20 removes the support force on the lock plate 17, so that the lock plate 17 automatically falls under the action of gravity, and then the left lock rod 18 separates from the lock groove 19, so that the left column 5 is separated from the spur rack 11.1. After the vertical center line of the pipeline passes the channel entrance, the right column 5 contacts the right end of the spur rack 11.1.

[0076] After that, the left column 5 and the right column 5 are synchronously displaced to the left, and the driving assembly 11 causes the pipe sleeve 4 to rotate to the left. At this time, the pipe automatically moves into the semicircular part 4.1 in the pipe sleeve 4. During the movement of the pipe, it squeezes the guide rope 12, so that the right end of the guide rope 12 is continuously pulled into the pipe sleeve 4 until the pipe enters the semicircular part 4.1 and the guide rope 12 is pressed into the rope groove 15. At the same time, the left column 5 is synchronously displaced to the left by the force of the spur rack 11.1.

[0077] ⑦ When the pipe sleeve 4 rotates to the left to the state where the channel faces upward, the left hook is put on the left hanging rod 14.2, and the right hook moves to the left side of the right column 5 after pushing up the right hanging rod 14.2. In this state, since the left column 5 does not move, the left column 5 hangs the left buckle 13 through the left hanging rod 14.2, thereby improving the stability of the pipe sleeve 4. At this time, the pipe in the pipe sleeve 4 is at the installation position, and the installation and fixing operation can be carried out.

[0078] ⑧ After the pipeline is installed and fixed, the mobile vehicle is pulled backward as a whole by the traction rope 1 until the pipe sleeve 4 is pulled out from the tail end of the pipeline, and the above process can be repeated to install and fix the pipelines one by one.

[0079] In this embodiment, a transverse screw 25 is connected to the column 5 , and the transverse screw 25 is rotatably mounted on the crossbeam 2 . The displacement of the two columns 5 on the crossbeam 2 can be controlled by operating the two transverse screws 25 .

[0080] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above implementation without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the scope of the present invention.

Claims

1. A construction device for replacing pipelines in a narrow space under a building, characterized in that: The invention comprises two mobile vehicles for carrying and lowering pipelines, a traction rope (1) is arranged between the two mobile vehicles, and the mobile vehicles comprise: A crossbeam (2), wherein both sides of the bottom of the crossbeam (2) are provided with running wheels (3), and the height of the crossbeam (2) is less than the height of the laid pipeline; A pipe sleeve (4) is rotatably arranged at a middle position on the top of the crossbeam (2), the pipe sleeve (4) comprising a semicircular portion (4.1) and straight portions (4.2) fixedly arranged at both ends of the semicircular portion (4.1), a passage for the pipe to enter the pipe sleeve (4) is formed between the two straight portions (4.2), and when the pipe is located in the semicircular portion (4.1), the pipe is in a concentric state with the installed pipe; The upright posts (5) are slidably arranged on both sides of the top of the cross beam (2) and are used to push the pipe on the cross beam (2) from the channel into the pipe sleeve (4); The bracket (6) is arranged on the crossbeam (2) in a manner that it can be raised and lowered in the height direction, and is used to place the pipe to be laid. The bottom of the bracket (6) is provided with an openable discharge port, and the pipe on the bracket (6) can fall onto the crossbeam (2) from the discharge port.

2. The device for replacing pipelines in narrow spaces under buildings according to claim 1 is characterized in that: The semicircular portion (4.1) is provided with an arc-shaped through groove (7), an arc-shaped slider (8) is slidably arranged in the arc-shaped through groove (7), and the arc-shaped slider (8) is fixedly mounted on the crossbeam (2). When the arc-shaped slider (8) is located at the two ends of the arc-shaped through groove (7), the channel is in a state of facing the two upright posts (5) respectively.

3. The device for replacing pipelines in narrow spaces under buildings according to claim 1 is characterized in that: The outer surface of the semicircular portion (4.1) is provided with an arc-shaped rack (9); a transmission gear (10) is rotatably mounted on the crossbeam (2); the top of the transmission gear (10) is meshed with the arc-shaped rack (9); two driving assemblies (11) are slidably arranged on the crossbeam (2) for driving the transmission gear (10) to rotate in a forward direction or a reverse direction respectively, and the two driving assemblies (11) are respectively connected to the two columns (5).

4. The narrow space management and replacement construction device under a building according to claim 3 is characterized in that: The driving assembly (11) comprises a spur rack (11.1) and a driving gear (11.2), wherein the driving gear (11.2) is coaxially fixed on the transmission gear (10), the spur rack (11.1) is slidably mounted on the crossbeam (2) in the transverse direction, and the top of the spur rack (11.1) is meshed with the driving gear (11.2).

5. The device for replacing pipelines in narrow spaces under buildings according to claim 4 is characterized in that: A guide rope (12) is slidably arranged between the ends of the two straight portions (4.2), buckles (13) are arranged at both ends of the guide rope (12), and a suspension assembly (14) for engaging with the buckle (13) is arranged on the column (5). When the pipe sleeve (4) is in a state with the channel facing upward, the guide rope (12) is pressed tightly into the pipe sleeve (4) by the pipeline.

6. The device for replacing pipelines in narrow spaces under buildings according to claim 5 is characterized in that: The suspension assembly (14) comprises a longitudinal plate (14.1), a suspension rod (14.2), a rod sleeve (14.3), a first spring (14.4), a transverse plate (14.5) and a wedge block (14.6); two longitudinal plates (14.1) are arranged in the column (5); the two longitudinal plates (14.1) are arranged opposite to each other; the suspension rod (14.2) is fixedly mounted on the top ends of the opposite sides of the two longitudinal plates (14.1); the outer sleeve of the suspension rod (14.2) is provided with a rod sleeve (14.3); the rod sleeve (14.3) is slidably mounted in the column (5) in the height direction; the first spring (14.4) is arranged between the rod sleeve (14.3) and the hanging rod (14.2), one transverse plate (14.5) is arranged corresponding to each of the two longitudinal plates (14.1), and the transverse plate (14.5) is sleeved on the bottom end of the vertical plate, the wedge block (14.6) is fixedly installed on the end of the transverse plate (14.5) away from the vertical plate, and the wedge block (14.6) is inclined upward, and the wedge block (14.6) is used to be squeezed to both sides by the straight part (4.2) so that the transverse plate (14.5) drives the vertical plate to move to both sides, thereby switching the opposite ends of the two hanging rods (14.2) from a close contact state to a separated state.

7. The device for replacing pipelines in narrow spaces under buildings according to claim 6 is characterized in that: The inner surface of the pipe sleeve (4) is provided with a rope groove (15), and when the pipe is located in the semicircular part, the guide rope (12) is received in the rope groove (15), and the two buckles (13) are respectively located at the ends of the two straight parts (4.2), the pipe sleeve (4) is in a channel-oriented state, and when one of the buckles (13) is hung on the hanging rod (14.2), the guide rope (12) is in a horizontal state.

8. The device for replacing pipelines in narrow spaces under buildings according to claim 6 is characterized in that: The bottom of the column (5) is provided with a receiving groove (16), and the side of the receiving groove (16) facing the pipe sleeve (4) is provided with an opening, and the height of the opening is smaller than the bottom end height of the channel when the pipe sleeve (4) is in a horizontal state.

9. The device for replacing pipelines in narrow spaces under buildings according to claim 6, characterized in that: The buckle (13) comprises a connecting column (13.1) and a hook (13.2); the connecting column (13.1) is fixed to the end of the guide rope (12); the hook (13.2) is fixed to the end of the connecting column (13.1) away from the guide rope (12); and when the end of the connecting column (13.1) abuts against the outer surface of the straight portion, the hook (13.2) is parallel to the straight portion, and the hook (13.2) is used to hang on the suspension rod (14.2).

10. The device for replacing pipelines in narrow spaces under buildings according to claim 9, characterized in that: A locking plate (17) capable of sliding in the height direction is arranged inside the crossbeam (2), a locking rod (18) is arranged on the side of the column (5), locking grooves (19) are arranged on both sides of the bottom of the spur rack (11.1), and a guide groove (20) is opened on the column (5). When any column (5) moves to a position where the guide rope (12) is in a tightened state, the locking plate (17) pushes the locking rod (18) corresponding to the column (5) in contact with the spur rack (11.1) to be inserted into the locking groove (19).

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