A pre-buried construction device for water conservancy and hydropower pipelines

Abstract

The present invention discloses a pre-buried construction device for water conservancy and hydropower pipelines, which relates to the technical field of pre-buried pipelines, including a base and a pre-buried pipe, wherein the pre-buried pipe is supported on the top of the base by a support platform, and the side of the support platform is connected to a hoisting assembly by setting an anti-settling mechanism to prevent the pre-buried pipe from excessively settling during use. The present invention can conveniently cooperate with the lifting mechanism to hoist the pre-buried pipe by setting a hoisting assembly to prevent the pre-buried pipe from tilting in the air. By setting a support platform and a hoisting assembly, the end of the pre-buried pipe can be supported by the support platform, and the middle of the pre-buried pipe can be supported by the hoisting assembly, so that the pre-buried pipe can be further kept stable after pre-buried. By setting an anti-settling mechanism, the upward lifting force of the arc rod can be adjusted according to the degree of settlement of the pre-buried pipe, thereby realizing providing appropriate supporting force according to different states of the pre-buried pipe, and further preventing the pre-buried pipe from excessively settling.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline pre-buried technology, in particular to a pipeline pre-buried construction device for water conservancy and hydropower. Background Art

[0002] Water conservancy and hydropower engineering mainly studies the basic knowledge and skills of water resources, hydraulic structures, hydraulics and fluid dynamics, and water conservancy engineering technology, and conducts surveys, planning, design, construction, and management of water conservancy and hydropower engineering. In the construction of water conservancy and hydropower engineering, it is necessary to pre-bury pipelines for subsequent structural and process construction. The location of pipeline laying is designed according to the needs of pipeline circulation. The connecting groove for pipeline laying is dug on the ground, and the pipeline is laid inside the connecting groove. Pre-buried pipelines usually use steel pipes, ductile iron pipes, and chemical (plastic) pipes. Due to the long length of pipeline transportation, the pipeline is installed in a splicing manner. In order to improve the stability of pipeline installation, a support and limiting bracket is used to fix the pipeline to strengthen the use effect of pipeline installation and connection.

[0003] A pre-buried support and limiting bracket for laying pipes in municipal engineering published in Chinese invention patent CN113374930B can automatically correct the installation position of the pipe limiting bracket, and the device is provided with a pipe leakage detection and processing structure to increase the practicality of the device. However, under adverse geological conditions, the soil is relatively loose. Even if the bottom of the connecting groove for laying the pipe has been compacted, the soil buried under the pipe is still relatively soft. After the buried pipe has been used for a period of time, the unsupported middle part will settle. Even if there are support and limiting brackets at both ends of the pipe, the middle part of the pipe will bend downward, causing damage to the pipe due to shearing. Moreover, after the middle part of the pipe settles and bends, the tension between the pipes will increase, causing leakage at the connection position of the pipe. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a pre-buried construction device for water conservancy and hydropower pipelines, which has the advantages of being able to easily adjust the pre-buried pipelines and effectively prevent the pipelines from settling and bending, thereby solving the problems raised in the background technology.

[0005] In order to achieve the above-mentioned purpose of being able to facilitate the adjustment of the pre-buried pipeline and effectively prevent the pipeline from settling and bending, the present invention provides the following technical solutions: a pre-buried construction device for water conservancy and hydropower pipelines, comprising a base and a pre-buried pipe, wherein the pre-buried pipe is supported on the top of the base by a support platform, and the two pre-buried pipes are connected to each other by a heat shrink sleeve, and two hoisting assemblies are symmetrically arranged in the middle of the pre-buried pipe, and the tops of the two hoisting assemblies are hoisted by a hoisting mechanism, and the side of the support platform is connected to the hoisting assembly by setting an anti-settling mechanism to prevent the pre-buried pipe from excessively settling during use;

[0006] The hoisting assembly includes two symmetrical semi-circular rings. The upper and lower ends of the two semi-circular rings are fastened to the outer wall of the embedded pipe by bolts. At the bottom of both semi-circular rings, there is a bottom plate for supporting the bottom of the embedded pipe. On the outer wall of the middle part of the semi-circular ring, there is a docking plate. The two hoisting assemblies are connected to each other by two front and rear cross-connectors. At both ends of the cross-connector, there is a plug-in part. The plug-in part is inserted into the inside of the hoisting assembly and installed together with the hoisting assembly through connecting bolts;

[0007] The anti-settlement mechanism includes an arched arc-shaped rod. The arc-shaped rod is used to connect the support platform and the docking plate. At the four corners of the top of the support platform, there are plug-in slots. At the bottom end of the arc-shaped rod, there is a sliding part inserted into the inside of the plug-in slot. On the side wall of the plug-in slot, there is a sliding slot for supporting the sliding part and restricting the sliding track of the sliding part;

[0008] The support platform includes a semi-circular frame. On the front and rear sides of the top of the semi-circular frame, there are support columns. Inside the support columns, a jacking rod slides up and down. At the top of the jacking rod, there is a rope pulley. On one side of the top of the semi-circular frame and in the middle of the top of the arc-shaped rod, there are pull rope rings. Between the two pull rope rings, there is a tensioning rope connected. The middle part of the tensioning rope is arranged on the top of the rope pulley and tightened upward through the rope pulley.

[0009] Preferably, the lifting mechanism includes a connecting piece. The top of the connecting piece is connected with a lifting cable through a pulley. At the bottom of the connecting piece, two hanging cables are symmetrically arranged. At the bottom of the hanging cable, there is a hook. At the top of the hoisting assembly, there is a hoisting ring for cooperating with the hook to be hung.

[0010] Preferably, the base includes a support bottom plate directly laid at the bottom. At the bottom of the support bottom plate, there are anti-slip cones arranged in a rectangular array. The anti-slip cones are inserted into the soil to prevent the support bottom plate from sliding. On the top of the support bottom plate, there is a dovetail rail along the axial direction of the embedded pipe. Between the two support platforms arranged on the support bottom plate, there is a connecting body connected to each other. At the bottom of the support platform and the connecting body, there are slots for cooperating with the dovetail rail to slide.

[0011] Preferably, the cross-connector includes a threaded cylinder arranged in the middle. At both ends of the threaded cylinder, there are threaded rods screwed. At the middle parts of the threaded rod and the threaded cylinder, there are anti-slip parts. The plug-in part is arranged at one end of the threaded rod far away from the threaded cylinder.

[0012] Preferably, on the side of the top of the docking plate far away from the cross-connector, there is a plug-in opening. At one end of the arc-shaped rod connected to the docking plate, there is a docking part inserted into the inside of the plug-in opening. The side surface of the docking part is flush with the side surface of the plug-in part. The cross-sectional shapes of the plug-in opening and the docking part are both "zhong" characters, so as to prevent the docking part from moving horizontally inside the plug-in opening.

[0013] Preferably, a rectangular frame is provided on the outer wall of the docking plate, a connecting plate is provided inside the rectangular frame, and both ends of the connecting plate are connected to the plug-in part and the docking part by bolts, so that the docking plate, the arc rod and the plug-in part are connected as one.

[0014] Preferably, a pressurizing cylinder is provided inside the support platform, and a movable plug is slidably connected to the inside of the pressurizing cylinder through a seal. A compression spring is provided inside the pressurizing cylinder to push the movable plug outward, and the end of the movable plug abuts against one end of the arc rod inserted in the plug-in slot.

[0015] Preferably, a tightening cylinder is provided inside the support platform, the bottom of the tightening rod is slidably inserted into the tightening cylinder, and a sealing member is provided between the inner wall of the tightening cylinder and the tightening rod.

[0016] Preferably, the top of the pressurizing cylinder is connected to the tightening cylinder through a connecting pipe, a pressurizing pipe is provided on the top of the semicircular frame, the pressurizing pipe is vertically inserted into the interior of the semicircular frame, the bottom of the pressurizing pipe is connected to the connecting pipe, and a one-way valve is provided in the middle of the pressurizing pipe.

[0017] Compared with the prior art, the present invention provides a pre-buried construction device for water conservancy and hydropower pipelines, which has the following beneficial effects:

[0018] The pre-buried construction device for water conservancy and hydropower pipelines can conveniently cooperate with the lifting mechanism to lift the pre-buried pipes by arranging the lifting components, thereby preventing the pre-buried pipes from tilting in the air and ensuring good support for the pre-buried pipes during lifting. There is no need to adjust the position of the pre-buried pipes by rotating the pre-buried pipes when docking with the support platform after lifting, which prevents the occurrence of lifting hazards and can further improve construction efficiency.

[0019] The pre-buried construction device for water conservancy and hydropower pipelines is equipped with a support platform and a hoisting assembly. After the pre-buried pipe is pre-buried, the end of the pre-buried pipe can be supported by the support platform. After the support platform and the hoisting assembly are connected together by an arc rod, the middle part of the pre-buried pipe can be supported by the hoisting assembly, thereby further maintaining the stability of the pre-buried pipe after pre-buried.

[0020] The pre-buried construction device for water conservancy and hydropower pipelines can connect the support platform and the lifting assembly together by arranging an anti-sinking mechanism, so as to provide good support for the pre-buried pipe. At the same time, after the pre-buried pipe is used for a long time, the tensioning force of the tensioning rope can be adjusted according to the degree of sinking of the middle part of the pre-buried pipe, which can prevent the arc rod from exerting too much upward force on the docking plate and adjust the upward lifting force of the arc rod according to the degree of sinking of the pre-buried pipe, thereby providing appropriate supporting force according to different states of the pre-buried pipe and further preventing the pre-buried pipe from excessive sinking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of the main stereoscopic structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the main three-dimensional structure of the base of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the pre-buried pipe in the hoisting state of the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the arc rod of the present invention;

[0025] Figure 5 This is a schematic diagram of the main three-dimensional structure of the hoisting assembly of the present invention;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the lifting assembly of the present invention from a side view;

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the support platform and the embedded pipe of the present invention;

[0028] Figure 8 This is a schematic diagram of the three-dimensional structure of the base of the present invention when viewed from above;

[0029] Fig. 9 This is a schematic diagram of the front cross-sectional structure of the arc rod of the present invention;

[0030] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure at point A in the middle.

[0031] In the figure: 1, base; 101, support bottom plate; 102, dovetail rail; 103, connector; 104, anti-slip cone; 2, support platform; 201, semicircular frame; 202, support ball; 3, heat shrink sleeve; 4, embedded pipe; 5, anti-settling mechanism; 500, docking part; 501, arc rod; 502, pull rope ring; 503, tension rope; 504, support column; 505, tightening rod; 506, rope wheel; 507, pressure pipe; 508, plug-in slot; 509, sliding part; 510, sliding slot; 511, sealing member; 512, tightening cylinder; 513, single To valve; 514, connecting pipe; 515, pressurized cylinder; 516, compression spring; 517, movable plug; 6, lifting assembly; 601, half ring piece; 602, lifting ring; 603, docking plate; 604, plug interface; 605, rectangular frame; 606, bottom plate; 607, connecting plate; 7, cross-connector; 701, threaded cylinder; 702, threaded rod; 703, anti-slip part; 704, plug-in part; 705, connecting bolt; 8, lifting mechanism; 801, connecting part; 802, pulley; 803, lifting cable; 804, hanging cable; 805, hook. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0033] For an embodiment of the present invention, please refer to Figures 1 to 10 , including a base 1 and a pre-buried pipe 4, the pre-buried pipe 4 is supported on the top of the base 1 by a support platform 2, the support platform 2 is slidably arranged between the base 1, so as to facilitate the adjustment of the position of the support platform 2 when installing the pre-buried pipe 4, the two pre-buried pipes 4 are connected to each other by a heat shrink sleeve 3, two hoisting assemblies 6 are symmetrically arranged in the middle of the pre-buried pipe 4, the tops of the two hoisting assemblies 6 are hoisted by a hoisting mechanism 8, and the side of the support platform 2 is connected to the hoisting assembly 6 by an anti-settling mechanism 5 to prevent the pre-buried pipe 4 from excessively settling during use;

[0034] When installing the embedded pipe 4, it is hung with the lifting assembly 6 through the lifting mechanism 8. After the embedded pipe 4 is placed on the support platform 2, it can be connected with the lifting assembly 6 through the anti-settling mechanism 5. The middle part of the embedded pipe 4 is supported by the lifting assembly 6, and then the two ends of the embedded pipe 4 close to each other are connected through the heat shrink sleeve 3.

[0035] like Figure 1 , Figure 3 and Figure 5 As shown, the hanging assembly 6 includes two symmetrical semi-ring pieces 601, and the upper and lower ends of the two semi-ring pieces 601 are fastened to the outer wall of the embedded pipe 4 by bolts. The inner wall of the semi-ring piece 601 is provided with an anti-slip sheet to prevent damage to the outside of the embedded pipe 4 and can clamp the embedded pipe 4. The bottom of the two semi-ring pieces 601 is provided with a bottom plate 606 for supporting the bottom of the embedded pipe 4. The bottom plate 606 is used to increase the support area of ​​the bottom of the embedded pipe 4 to prevent the embedded pipe 4 from being damaged due to large local force. The middle outer wall of the semi-ring piece 601 is provided with a docking plate 603. The two hanging assemblies 6 are connected to each other through two front and rear cross-connecting members 7. Both ends of the cross-connecting member 7 are provided with a plug-in portion 704. The plug-in portion 704 is plugged into the interior of the hanging assembly 6 and installed with the hanging assembly 6 through connecting bolts 705.

[0036] like Figure 3 and Figure 5 As shown, the cross-connecting member 7 includes a threaded cylinder 701 disposed in the middle, threaded rods 702 are threadedly connected at both ends of the threaded cylinder 701, anti-slip portions 703 are disposed in the middle of the threaded rod 702 and the threaded cylinder 701, and a plug-in portion 704 is disposed on an end of the threaded rod 702 away from the threaded cylinder 701;

[0037] Before lifting the embedded pipe 4, the lifting assembly 6 is installed by installing two half-ring pieces 601 on the outside of the embedded pipe 4, and ensure that the lifting assembly 6 is symmetrically installed on the embedded pipe 4, the distance between the middle interval is not less than the shortest distance of the cross-connector 7, and the maximum distance is not greater than the longest distance of the cross-connector 7. After the lifting assembly 6 is installed, the plug-in portion 704 at one end of the cross-connector 7 is inserted into the docking plate 603, and after connecting with the connecting bolts 705, the threaded cylinder 701 is rotated to make the two threaded rods 702 gradually extend from the inside of the threaded cylinder 701 until the other plug-in portion 704 is inserted into the docking plate 603. After connecting with the connecting bolts 705, the two lifting assemblies 6 are connected as a whole to prevent the embedded pipe 4 from bending when it is lifted by the lifting mechanism 8, and also to prevent the embedded pipe 4 from tilting and falling.

[0038] like Figure 1 , Figure 4 , Figure 6 , Figure 7 and Fig.10 As shown, the anti-settling mechanism 5 includes an arched arc rod 501, which is used to connect the support platform 2 and the docking plate 603. The four corners of the top of the support platform 2 are provided with plug-in slots 508. The bottom end of the arc rod 501 is provided with a sliding portion 509 plugged into the plug-in slot 508. The side wall of the plug-in slot 508 is provided with a sliding slot 510 that supports the sliding portion 509 and limits the sliding trajectory of the sliding portion 509.

[0039] After the bottom of the arc rod 501 is installed inside the sliding groove 510, the connection between the top of the sliding groove 510 and the docking plate 603 can make the docking plate 603 be well supported, so that the embedded pipe 4 will not sink during construction. In addition, during subsequent use, when the internal liquid transported by the embedded pipe 4 increases the weight, or when the soil gradually settles, the arc rod 501 can also be deformed according to the degree of sinking of the embedded pipe 4, thereby adjusting the supporting force of the lifting assembly 6 on the embedded pipe 4.

[0040] like Figure 1-Figure 2 as well as Figure 7 and Fig. 9 As shown, the support platform 2 includes a semicircular frame 201, and the arc-shaped inner wall of the semicircular frame 201 is embedded with a support ball 202. The support ball 202 is supported on the bottom of the embedded pipe 4 to facilitate the adjustment of the position of the embedded pipe 4. Support columns 504 are arranged on the front and back sides of the top of the semicircular frame 201. A tightening rod 505 is arranged inside the support column 504 for sliding up and down. A pulley 506 is arranged on the top of the tightening rod 505. A pull rope ring 502 is arranged on one side of the top of the semicircular frame 201 and in the middle of the top of the arc-shaped rod 501. The two pull rope rings 502 are connected by a tensioning rope 503. The middle part of the tensioning rope 503 is arranged on the top of the pulley 506 and is tightened upward through the pulley 506.

[0041] When the embedded pipe 4 sinks during use, the position of the lifting assembly 6 will also be lowered. When the top of the arc rod 501 is driven to bend downward by the docking plate 603, the pull rope ring 502 will pull the tensioning rope 503, thereby applying an upward pulling force to the middle of the arc rod 501, thereby increasing the upward supporting force of the arc rod 501 on the lifting assembly 6 and preventing excessive sinking of the embedded pipe 4.

[0042] like Figure 3 As shown, the lifting mechanism 8 includes a connecting member 801, the top of the connecting member 801 is connected to a lifting cable 803 through a pulley 802, two hanging cables 804 are symmetrically arranged at the bottom of the connecting member 801, a hook 805 is arranged at the bottom of the hanging cable 804, and a lifting ring 602 that cooperates with the hook 805 is arranged at the top of the lifting component 6.

[0043] When lifting the embedded pipe 4, the hook 805 on the lifting mechanism 8 is connected to the lifting ring 602 on the lifting assembly 6, and the embedded pipe 4 is symmetrically pulled up and down by two hanging cables 804. When the lifting cable 803 is retracted and released, the bottom of the lifting cable 803 rolls on the pulley 802 to realize the lifting of the embedded pipe 4.

[0044] like Figure 2 , Figure 7 and Figure 8 As shown, the base 1 includes a supporting base plate 101 directly laid on the bottom, and the bottom of the supporting base plate 101 is provided with anti-skid cones 104 distributed in a rectangular array, and the anti-skid cones 104 are inserted into the soil to prevent the supporting base plate 101 from sliding. The top of the supporting base plate 101 is provided with a dovetail rail 102 along the axial direction of the embedded pipe 4, and the two supporting platforms 2 arranged on the supporting base plate 101 are connected to each other through a connector 103, and the bottom of the supporting platform 2 and the connector 103 are provided with grooves that cooperate with the dovetail rail 102 for sliding.

[0045] When laying the base 1, it is necessary to first measure the inside of the dug connecting groove, and then place the supporting base plate 101 with the side of the anti-slip cone 104 facing down inside the connecting groove, and then slide the supporting platform 2 and the connecting body 103 together from one end of the dovetail rail 102 to install them on the top of the supporting base plate 101. When the embedded pipe 4 is hoisted downward, if the placement position of the supporting base plate 101 is not accurate enough, the position of the supporting platform 2 can be adjusted by sliding the supporting platform 2 along the dovetail rail 102, so that the end of the embedded pipe 4 can be placed in a suitable position between the two supporting platforms 2, which facilitates the insertion and heating of the heat shrink sleeve 3.

[0046] like Figure 4-Figure 6As shown, on one side of the top of the docking plate 603 away from the cross-connecting member 7, an insertion port 604 is provided. At one end of the arc-shaped rod 501 connected to the docking plate 603, a docking portion 500 inserted into the insertion port 604 is provided. The side surface of the docking portion 500 is flush with the side surface of the insertion portion 704. The cross-sectional shapes of both the insertion port 604 and the docking portion 500 are in the shape of the Chinese character 'zhong' to prevent the docking portion 500 from moving horizontally inside the insertion port 604.

[0047] As Figure 5 and Figure 6 As shown, a rectangular frame 605 is provided on the outer wall of the docking plate 603. Inside the rectangular frame 605, a connecting plate 607 is provided. Both ends of the connecting plate 607 are connected to the insertion portion 704 and the docking portion 500 by bolts, so that the docking plate 603, the arc-shaped rod 501, and the insertion portion 704 are integrated.

[0048] When installing the arc-shaped rod 501, since the lifting ring 602 is at the top when the embedded pipe 4 is lifted and lowered, the docking plate 603 is already in a vertical state, and it can be ensured that the docking portion 500 is vertically inserted into the insertion port 604. At the same time, after the connecting plate 607 is placed in the rectangular frame 605, the connecting plate 607 is connected to the docking portion 500 and the insertion portion 704 by bolts, realizing the reinforcement and support of the embedded pipe 4 at the same time.

[0049] As Fig. 9 and Fig.10 As shown, a pressure cylinder 515 is provided inside the support platform 2. An active piston 517 is slidably connected inside the pressure cylinder 515 through a seal 511. A compression spring 516 for pushing the active piston 517 outwards is provided inside the pressure cylinder 515. One end of the active piston 517 abuts against one end of the arc-shaped rod 501 inserted inside the insertion slot 508, and the active piston 517 is pushed to move through the translation of the bottom of the arc-shaped rod 501.

[0050] A jacking cylinder 512 is provided inside the support platform 2. The bottom of the jacking rod 505 is slidably inserted inside the jacking cylinder 512. A seal 511 is provided between the inner wall of the jacking cylinder 512 and the jacking rod 505.

[0051] The top of the pressure cylinder 515 is communicated with the jacking cylinder 512 through a connecting pipe 514. A pressure pipe 507 is provided on the top of the semi-circular frame 201. The pressure pipe 507 is vertically inserted downwards into the semi-circular frame 201. The bottom of the pressure pipe 507 is communicated with the connecting pipe 514. A one-way valve 513 is provided in the middle of the pressure pipe 507;

[0052] When installing the sliding portion 509 at the bottom of the arc-shaped rod 501, it is only necessary to place the sliding portion 509 into the insertion slot 508. After connecting the top of the arc-shaped rod 501 to the docking plate 603, the sliding portion 509 cannot be separated from the inside of the insertion slot 508;

[0053] During construction, hydraulic oil is added to the inside of the jacking cylinder 512 through the pressure pipe 507, so that the jacking rod 505 is pushed upward, and the tension rope 503 is tightened by the rope wheel 506;

[0054] When the embedded pipe 4 sinks during use, since the arc rod 501 itself is arched, after the height of the end is reduced, the force will be directly applied to the support platform 2. At the same time, the sliding part 509 arranged at the bottom of the arc rod 501 will also slide inside the sliding groove 510, thereby pushing the movable plug 517 to move. After the hydraulic oil inside the pressure cylinder 515 is pushed out, the height of the tightening rod 505 will be increased, so that the tensioning rope 503 is further tightened, and the auxiliary arc rod 501 provides greater supporting force for the embedded pipe 4, preventing the middle part of the embedded pipe 4 from excessively sinking, and avoiding leakage at the joint of the embedded pipe 4 due to excessive sinking.

[0055] The specific steps and principles of this device are as follows:

[0056] First, dig a connecting groove at the location where construction is required. When laying the base 1, it is necessary to first measure inside the dug connecting groove, and then place the supporting base plate 101 with the side of the anti-slip cone 104 downward inside the connecting groove, and then slide the supporting platform 2 and the connector 103 together from one end of the dovetail rail 102 on the top of the supporting base plate 101;

[0057] Before lifting the embedded pipe 4, the lifting assembly 6 is installed by installing two half-ring pieces 601 on the outside of the embedded pipe 4, and it is ensured that the lifting assembly 6 is symmetrically installed on the embedded pipe 4, the distance of the middle interval is not less than the shortest distance of the cross-connection 7, and the maximum distance is not greater than the longest distance of the cross-connection 7. After the lifting assembly 6 is installed, the plug-in portion 704 at one end of the cross-connection 7 is inserted into the docking plate 603, and after connecting with the connecting bolts 705, the threaded cylinder 701 is rotated to make the two threaded rods 702 gradually extend from the inside of the threaded cylinder 701 until the other plug-in portion 704 is inserted into the docking plate 603. After connecting with the connecting bolts 705, the two lifting assemblies 6 are connected as a whole to prevent the embedded pipe 4 from bending when the lifting mechanism 8 is used to lift it, and also to prevent the embedded pipe 4 from tilting and falling.

[0058] When the embedded pipe 4 is lifted, the hook 805 on the lifting mechanism 8 is connected to the lifting ring 602 on the lifting assembly 6, and the embedded pipe 4 is symmetrically pulled up and down by two hanging cables 804. When the lifting cable 803 is retracted and released, the bottom of the lifting cable 803 rolls on the pulley 802 to realize the lifting of the embedded pipe 4;

[0059] When the embedded pipe 4 is hoisted downward, if the placement position of the support base plate 101 is not accurate enough, the position of the support platform 2 can be adjusted by sliding the support platform 2 along the dovetail rail 102, so that the end of the embedded pipe 4 can be placed at a suitable position between the two support platforms 2, which is convenient for placing and heating the heat shrink sleeve 3. At the same time, when installing the arc rod 501, the distance between the support platform 2 and the hoisting assembly 6 can also be adjusted;

[0060] After placing the embedded pipe 4 on the support platform 2, the heat shrink sleeve 3 is put on the end of the embedded pipe 4 by moving the position of the embedded pipe 4, and then the arc rod 501 is put downward to make the docking part 500 slide into the plug-in port 604, and at the same time, the position of the embedded pipe 4 is adjusted to ensure that the sliding part 509 is inserted into the plug-in slot 508;

[0061] When installing the arc rod 501, since the hoisting ring 602 is located at the top when the embedded pipe 4 is hoisted and lowered, the docking plate 603 is already in a vertical state, and it can ensure that the docking part 500 is vertically placed in the plug port 604. At the same time, after the connecting plate 607 is placed in the rectangular frame 605, the connecting plate 607 is connected with the docking part 500 and the plug-in part 704 by bolts, and the embedded pipe 4 is reinforced and supported at the same time;

[0062] When installing the sliding part 509 at the bottom of the arc rod 501, it is only necessary to put the sliding part 509 into the insertion groove 508. After the top of the arc rod 501 is connected to the docking plate 603, the sliding part 509 cannot be separated from the inside of the insertion groove 508.

[0063] After the bottom of the arc rod 501 is installed in the sliding groove 510, the connection between the top of the sliding groove 510 and the docking plate 603 can make the docking plate 603 well supported, so that the embedded pipe 4 will not sink during construction, and in subsequent use, when the embedded pipe 4 is transported with liquid to increase its weight, or when the soil gradually settles, the arc rod 501 can also be deformed according to the degree of sinking of the embedded pipe 4, thereby adjusting the supporting force of the hoisting assembly 6 on the embedded pipe 4;

[0064] Then, the two ends of the tension rope 503 are connected to the middle of the arc rod 501 and the rope ring 502 at the top of the semicircular frame 201. After the middle of the tension rope 503 crosses the top of the rope wheel 506, hydraulic oil is added to the inside of the tension cylinder 512 through the pressure pipe 507, so that the tension rod 505 is pushed upward, and the tension rope 503 is tightened by the rope wheel 506;

[0065] When the embedded pipe 4 sinks during use, the position of the hanging assembly 6 will also be lowered. When the top of the arc rod 501 is driven to bend downward by the docking plate 603, the pull rope ring 502 will pull the tension rope 503, thereby applying an upward pulling force to the middle of the arc rod 501, thereby increasing the upward supporting force of the arc rod 501 on the hanging assembly 6, and preventing the embedded pipe 4 from excessively sinking.

[0066] At the same time, when the embedded pipe 4 sinks during use, since the arc rod 501 itself is arched, after the height of the end is reduced, the force will be directly applied to the support platform 2, and the sliding part 509 arranged at the bottom of the arc rod 501 will also slide inside the sliding groove 510, thereby pushing the movable plug 517 to move. After the hydraulic oil inside the pressure cylinder 515 is pushed out, the height of the tightening rod 505 will be increased, so that the tensioning rope 503 is further tightened, and the auxiliary arc rod 501 provides greater supporting force for the embedded pipe 4, prevents the middle part of the embedded pipe 4 from excessive sinking, and avoids leakage at the joint of the embedded pipe 4 due to excessive sinking.

[0067] The above description is only a preferred specific implementation mode of the present invention. Although the embodiments of the present invention have been shown and described, it can be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents. The protection scope of the present invention is not limited to the above embodiments. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent substitutions or changes according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pre-buried construction device for water conservancy and hydropower pipelines, comprising a base (1) and a pre-buried pipe (4), characterized in that: The embedded pipe (4) is supported on the top of the base (1) via a support platform (2); the two embedded pipes (4) are connected to each other via a heat shrink sleeve (3); two lifting assemblies (6) are symmetrically arranged in the middle of the embedded pipe (4); the tops of the two lifting assemblies (6) are lifted via a lifting mechanism (8); and the side of the support platform (2) is connected to the lifting assemblies (6) via an anti-settling mechanism (5) to prevent the embedded pipe (4) from excessively settling during use; The hanging assembly (6) comprises two symmetrical half-ring pieces (601), the upper and lower ends of the two half-ring pieces (601) are fastened to the outer wall of the embedded pipe (4) by bolts, the bottom of the two half-ring pieces (601) is provided with a bottom plate (606) for supporting the bottom of the embedded pipe (4), the middle outer wall of the half-ring piece (601) is provided with a docking plate (603), the two hanging assemblies (6) are connected to each other by two front and rear cross-connecting members (7), the two ends of the cross-connecting member (7) are provided with plug-in parts (704), the plug-in parts (704) are plugged into the inside of the hanging assembly (6) and are installed together with the hanging assembly (6) by connecting bolts (705); After being connected by the connecting bolts (705), the two lifting assemblies (6) are connected as a whole, so as to prevent the embedded pipe (4) from bending when being lifted by the lifting mechanism (8), and also prevent the embedded pipe (4) from tilting and falling; The anti-settling mechanism (5) comprises an arched arc rod (501), the arc rod (501) being used to connect the support platform (2) and the docking plate (603), the top four corners of the support platform (2) being provided with plug-in slots (508), the bottom end of the arc rod (501) being provided with a sliding portion (509) plugged into the plug-in slot (508), and the side wall of the plug-in slot (508) being provided with a sliding slot (510) for supporting the sliding portion (509) and limiting the sliding track of the sliding portion (509); The support platform (2) comprises a semicircular frame (201), support columns (504) are arranged on both the front and rear sides of the top of the semicircular frame (201), a tension rod (505) is arranged inside the support column (504) to slide up and down, a rope wheel (506) is arranged on the top of the tension rod (505), a pull rope ring (502) is arranged on one side of the top of the semicircular frame (201) and in the middle of the top of the arc rod (501), the two pull rope rings (502) are connected by a tension rope (503), and the middle part of the tension rope (503) is arranged on the top of the rope wheel (506) and is tightened upwards through the rope wheel (506); A pressurizing cylinder (515) is disposed inside the support platform (2), a movable plug (517) is slidably connected to the inside of the pressurizing cylinder (515) via a sealing member (511), a compression spring (516) is disposed inside the pressurizing cylinder (515) for pushing the movable plug (517) outward, and an end of the movable plug (517) abuts against one end of an arc-shaped rod (501) inserted into the insertion groove (508); A tightening cylinder (512) is provided inside the support platform (2), the bottom of the tightening rod (505) is slidably inserted into the tightening cylinder (512), and a sealing member (511) is provided between the inner wall of the tightening cylinder (512) and the tightening rod (505); The top of the pressurizing cylinder (515) is connected to the tightening cylinder (512) via a connecting pipe (514); a pressurizing pipe (507) is provided at the top of the semicircular frame (201); the pressurizing pipe (507) is vertically inserted downward into the interior of the semicircular frame (201); the bottom of the pressurizing pipe (507) is connected to the connecting pipe (514); and a one-way valve (513) is provided in the middle of the pressurizing pipe (507); When the embedded pipe (4) sinks during use, since the arc rod (501) itself is arched, after the height of the end portion is reduced, a force will be directly applied to the support platform (2). At the same time, the sliding portion (509) provided at the bottom of the arc rod (501) will also slide inside the sliding groove (510), thereby pushing the movable plug (517) to move. After the hydraulic oil inside the pressure cylinder (515) is pushed out, the height of the tension rod (505) will be increased, thereby further tightening the tension rope (503), and the auxiliary arc rod (501) provides greater support force for the embedded pipe (4), thereby preventing the middle part of the embedded pipe (4) from excessively sinking.

2. A pre-buried construction device for water conservancy and hydropower pipelines according to claim 1, characterized in that: The lifting mechanism (8) comprises a connecting member (801), the top of the connecting member (801) is connected to a lifting cable (803) via a pulley (802), two hanging cables (804) are symmetrically arranged at the bottom of the connecting member (801), a hook (805) is arranged at the bottom of the hanging cables (804), and a lifting ring (602) is arranged at the top of the lifting component (6) to be hung with the hook (805).

3. A pre-buried construction device for water conservancy and hydropower pipelines according to claim 1, characterized in that: The base (1) comprises a supporting base plate (101) directly laid on the bottom, the bottom of the supporting base plate (101) is provided with anti-skid cones (104) distributed in a rectangular array, the anti-skid cones (104) are inserted into the soil to prevent the supporting base plate (101) from sliding, the top of the supporting base plate (101) is provided with a dovetail rail (102) along the axial direction of the embedded pipe (4), the two supporting platforms (2) arranged on the supporting base plate (101) are connected to each other via a connector (103), and the bottoms of the supporting platforms (2) and the connector (103) are both provided with grooves that cooperate with the dovetail rail (102) for sliding.

4. A pre-buried construction device for water conservancy and hydropower pipelines according to claim 1, characterized in that: The cross-connecting member (7) comprises a threaded barrel (701) disposed in the middle, threaded rods (702) being threadedly connected at both ends of the threaded barrel (701), anti-slip portions (703) being disposed in the middle of the threaded rod (702) and the threaded barrel (701), and a plug-in portion (704) being disposed on an end of the threaded rod (702) away from the threaded barrel (701).

5. A pre-buried construction device for water conservancy and hydropower pipelines according to claim 4, characterized in that: On one side of the top of the docking plate (603) far from the transverse connecting member (7), an insertion port (604) is provided. One end of the arc-shaped rod (501) connected to the docking plate (603) is provided with a docking portion (500) inserted into the insertion port (604). The side surface of the docking portion (500) is flush with the side surface of the insertion portion (704). The cross-sectional shapes of the insertion port (604) and the docking portion (500) are both in the shape of a Chinese character 'zhong' to prevent the docking portion (500) from moving horizontally inside the insertion port (604).

6. A pre-buried construction device for water conservancy and hydropower pipelines according to claim 5, characterized in that: A rectangular frame (605) is provided on the outer wall of the docking plate (603). A connecting plate (607) is arranged inside the rectangular frame (605). Both ends of the connecting plate (607) are connected to the insertion portion (704) and the docking portion (500) by bolts, so that the docking plate (603), the arc-shaped rod (501), and the insertion portion (704) are integrated into one body.

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