Water conservancy pipeline push bench and operation method thereof

Abstract

The invention discloses a water conservancy pipeline pipe jacking machine and an operation method thereof, and relates to the technical field of water conservancy construction. The pipe jacking machine comprises a main body frame, a mounting table is arranged on the main body frame, a guide rail used for placing a pipe jacking machine head and a pre-buried pipeline is fixedly mounted on the surface of the mounting table, and a plurality of rotating balls are mounted on the guide rail; the pipe connecting mechanism comprises a pipe connecting table mounted on the mounting table, a pump body used for sucking slurry is fixedly mounted on the surface of the pipe connecting table, and an output pipe head used for discharging the slurry is arranged on the pump body; the clamping mechanism is limited through the effect of the limiting mechanism, after the limiting mechanism is completely separated from the pipe connecting table, the pipe connecting table completes supporting in the vertical direction along with continuous movement of the clamping mechanism at the moment, meanwhile, matching of the connector and the output pipe head is completed through driving of the driving mechanism, and therefore the output pipe head and the connector are automatically cut off; and it is guaranteed that no interference phenomenon occurs when a new pipeline is fed, and the pipeline feeding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water conservancy construction, in particular to a water conservancy pipeline jacking machine and an operation method thereof. BACKGROUND

[0002] At present, with the development of water conservancy technology, the underground pipeline excavation technology is constantly improving and optimizing, and the use of the jacking machine improves the efficiency of underground pipeline excavation. The core function is to top the pipeline from the starting well to the receiving well without excavating the ground, realizing the laying or repair of underground pipelines. It has become a key equipment for urban underground engineering construction because it has little impact on ground transportation, surrounding buildings and environment.

[0003] At present, when the jacking machine is used, the circulating mud conveying pipe needs to be disconnected manually after each feeding of the jacking machine, and then a new pipeline is placed on the workbench. At this time, the mud conveying pipe is reconnected through the new pipeline, so as to advance and install the new pipeline. Manual operation is more cumbersome, and the movement of the mud conveying pipe is easy to cause surface wear, affecting the laying efficiency of pipeline installation.

[0004] Therefore, the present application designs a water conservancy pipeline jacking machine and an operation method thereof to solve the above problems. SUMMARY

[0005] The purpose of the embodiment of the present application is to provide a water conservancy pipeline jacking machine and an operation method thereof, which aims to solve the technical problems existing in the prior art mentioned in the background.

[0006] The embodiment of the present application is realized as follows: a water conservancy pipeline jacking machine, the jacking machine comprises: a main body frame, an installation table is arranged on the main body frame, a guide rail for placing a jacking machine head and a pre-buried pipeline is fixedly installed on the surface of the installation table, and a plurality of rotating balls are installed on the guide rail; a pipe connecting mechanism, comprising a pipe connecting table installed on the installation table, a pump body for pumping mud is fixedly installed on the surface of the pipe connecting table, an output pipe head for discharging mud is arranged on the pump body, an input pipe for conveying mud is fixedly installed on the surface of the pump body, a connecting head for conveying mud is connected to the surface of the output pipe head, the connecting head is fixedly installed on the moving table, and the surface of the connecting head is connected with an external conveying hose; a hydraulic mechanism for pushing the jacking machine head and the pre-buried pipeline to move horizontally; a clamping mechanism for limiting the pipe connecting table; a limiting mechanism for releasing the limitation of the pipe connecting table by cooperating with the driving mechanism; a pipe pulling mechanism for conveying mud when the jacking machine head moves.

[0007] Further, the hydraulic mechanism comprises a hydraulic cylinder fixedly installed on the mounting table, and two hydraulic rods are fixedly installed on the output end of the hydraulic cylinder, the surface of each hydraulic rod is connected with the extrusion circular table, and the extrusion circular table is in sliding connection with the mounting table.

[0008] Further, the clamping mechanism comprises two movable racks fixedly installed on the extrusion circular table, each movable rack is in meshing connection with the main ratchet gear, the output end of the main ratchet gear is connected with the input end of the bevel gear set, the output end of the bevel gear set penetrates through the pipe connecting table and is in rotary connection with the pipe connecting table, the output end of the bevel gear set is coaxially fixedly installed with the rotary gear, the rotary gear is in meshing connection with the clamping rack, the clamping rack is in sliding connection with the pipe connecting table, the clamping rack is fixedly installed on the clamping cylinder, the clamping cylinder is in sliding connection with the guide cylinder, the guide cylinder is fixedly installed on the pipe connecting table, the clamping cylinder is connected with the pipe connecting table through the stretching spring, and the mounting table is fixedly installed with the supporting cylinder matched with the clamping cylinder.

[0009] Further, the limiting mechanism comprises a pushing plate installed on the mounting table, two extrusion plates are fixedly installed on the pushing plate, an L-shaped rod matched with the extrusion plates is in sliding installation on the surface of the pipe connecting table, an extrusion spring is fixedly installed on the surface of the L-shaped rod, a fixed plate is fixedly installed on the surface of the pipe connecting table, one end of the extrusion spring away from the L-shaped rod is connected with the fixed plate, a movable ratchet gear is fixedly installed on the surface of the L-shaped rod, the movable ratchet gear is in meshing connection with the limiting gear, and the limiting gear is fixedly installed on the rotary gear.

[0010] Further, the pipe pulling mechanism comprises a pipe winding cylinder in rotary connection with the pipe connecting table, the output port of the pipe winding cylinder is in rotary connection with the input pipe, a slurry conveying pipe is wound on the pipe winding cylinder, the output end of the slurry conveying pipe is fixedly connected with the pipe winding cylinder, and the input end of the slurry conveying pipe is connected with the pipe jacking head.

[0011] Further, the driving mechanism comprises a first driving cylinder and a second driving cylinder fixedly installed on the mounting table, and a first telescopic rod and a second telescopic rod are fixedly installed on the output end of the first driving cylinder and the second driving cylinder, a moving table is fixedly installed on the surface of the first telescopic rod, and a pushing plate is fixedly installed on the surface of the second telescopic rod.

[0012] The specific steps of the operation method of the water conservancy pipeline pipe jacking machine are as follows: Step one: before the pipeline is excavated by the pipe jacking head driven by the hydraulic mechanism, the connecting head is butt-jointed with the output pipe head through the driving effect of the driving mechanism, at this time, the pump body is started, and when the pipe jacking head is excavated by the hydraulic mechanism, the excavated soil is transported through the negative pressure of the pump body. Step two: when the pipe jacking machine head enters the soil, the hydraulic mechanism is reset at this time, and the connecting pipe table is limited at the same time, and the connecting pipe table stops running, the outlet of the output pipe head is closed, the connecting head is separated from the output pipe head under the action of the driving mechanism at this time, and the limiting mechanism and the connecting pipe table are separated, and the new pipeline is lifted to the guide rail by external equipment at this time; Step three: when the lifting and placing of the new pipeline are completed, the connecting head is reconnected with the output pipe head by the driving of the driving mechanism at this time, the pump body is restarted to transport the soil, and the limiting mechanism is reconnected with the connecting pipe table by the driving of the driving mechanism at the same time, and the connecting pipe table is released from the limiting. Step four: when the connecting pipe table is released from the limiting, the new pipeline is driven by the driving action of the hydraulic mechanism to drive the pipe jacking machine head to the inside of the soil, so that the new pipeline is circularly pushed to complete the pipeline laying.

[0013] Compared with the prior art, the beneficial effects of the present application are: 1. The limiting mechanism limits the clamping mechanism, and when the limiting mechanism is completely separated from the connecting pipe table, the connecting pipe table is vertically supported by the continuous movement of the clamping mechanism, and the driving mechanism drives the connecting head to cooperate with the output pipe head, so that the output pipe head and the connecting head are automatically cut off, so that the interference phenomenon does not occur when the new pipeline is fed, and the efficiency of the pipeline feeding is improved.

[0014] 2. The connecting head is reconnected with the output pipe head by the driving of the driving mechanism, the pump body is restarted, and the soil is transported again when the hydraulic mechanism pushes the new pipeline to feed, so that the new pipeline is automatically penetrated, and the efficiency of the pipeline laying is improved. DETAILED DESCRIPTION

[0015] Figure 1 A structure diagram of a water conservancy pipeline pipe jacking machine is provided for the embodiment of the present application; Figure 2 The enlarged structure diagram of A of the present application Figure 1 ; Figure 3 A sectional structure diagram of a water conservancy pipeline pipe jacking machine is provided for the embodiment of the present application; Figure 4 The enlarged structure diagram of B of the present application Figure 3 ; Figure 5 An installation position structure diagram of the connecting pipe table is provided for the embodiment of the present application; Figure 6 The enlarged structure diagram of C of the present application Figure 5 ; Figure 7Another sectional view structure schematic diagram of the water conservancy pipeline jacking machine of the present application; Figure 8 The present application Figure 7 is a D enlarged structure schematic diagram; Figure 9 The present application is a partial part explosion structure schematic diagram of the water conservancy pipeline jacking machine; Figure 10 The present application Figure 9 is an E enlarged structure schematic diagram; Figure 11 Another sectional view structure schematic diagram of the water conservancy pipeline jacking machine of the present application; Figure 12 The present application Figure 11 is a F enlarged structure schematic diagram.

[0016] In the drawings: 1, main body frame; 101, mounting table; 102, guide rail; 103, jacking machine head; 2, pipe connecting mechanism; 201, pipe connecting table; 202, pump body; 203, input pipe; 204, output pipe head; 205, connecting head; 206, moving table; 3, hydraulic mechanism; 301, hydraulic cylinder; 302, hydraulic rod; 303, extrusion circular table; 4, clamping mechanism; 401, moving rack; 402, main ratchet gear; 403, bevel gear set; 404, rotating gear; 405, clamping rack; 406, clamping cylinder; 407, guide cylinder; 408, tension spring; 409, support cylinder; 5, limiting mechanism; 501, push plate; 502, extrusion plate; 503, L-shaped rod; 504, extrusion spring; 505, fixed plate; 506, moving ratchet gear; 507, limiting gear; 6, pipe pulling mechanism; 601, pipe winding cylinder; 602, slurry pipe; 7, driving mechanism; 701, first driving air cylinder; 702, first telescopic rod; 703, second driving air cylinder; 704, second telescopic rod. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0018] It can be understood that the terms "first", "second" and the like used in the present application can be used herein to describe various elements, but unless specifically stated, these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0019] As Figure 1 , Figure 2 , Figure 7 , Figure 8 and Figure 9As shown, in one embodiment, a water pipeline pipe jacking machine is proposed, which comprises: The main frame 1 is provided with a mounting table 101, and a guide rail 102 for placing the pipe jacking machine head 103 and the embedded pipeline is fixedly installed on the surface of the mounting table 101, and a plurality of rotating balls are installed on the guide rail 102; The pipe connecting mechanism 2 comprises a pipe connecting table 201 installed on the mounting table 101, and a pump body 202 for pumping mud is fixedly installed on the surface of the pipe connecting table 201, an output pipe head 204 for discharging mud is arranged on the pump body 202, an input pipe 203 for conveying mud is fixedly installed on the surface of the pump body 202, a connecting head 205 for conveying mud is connected to the surface of the output pipe head 204, the connecting head 205 is fixedly installed on a moving table 206, and the surface of the connecting head 205 is connected with an external conveying hose; The hydraulic mechanism 3 is used for pushing the pipe jacking machine head 103 and the embedded pipeline to move horizontally; The clamping mechanism 4 is used for limiting the pipe connecting table 201; The limiting mechanism 5 releases the limiting of the pipe connecting table 201 by cooperating with the driving mechanism 7; The pipe pulling mechanism 6 is used for conveying mud when the pipe jacking machine head 103 moves.

[0020] In actual application, when the pipe jacking machine is excavated, as shown in the figure, Figure 1 At this time, the pipe jacking machine head 103 is driven by the driving action of the hydraulic mechanism 3 to feed and excavate into the soil, and the soil excavated by the pipe jacking machine head 103 is conveyed and output by negative pressure through the operation of the pump body 202, and when the pipe jacking machine head 103 is pushed to move by the hydraulic mechanism 3, the pipe connecting table 201 is driven by the driving action of the driving mechanism 7 to move synchronously with the pipe jacking machine head 103, so that the pipe connecting table 201 moves to the limiting position, and when the pipe jacking machine head 103 completely enters the soil, the hydraulic mechanism 3 is reset at this time, as shown in the figure, Figure 8 The reset of the hydraulic mechanism 3 drives the clamping mechanism 4 to move, thereby supporting and limiting the pipe connecting table 201 in the vertical direction and the horizontal direction, as shown in the figure, Figure 9As shown, at this time, the pump body 202 stops running to close the delivery port of the output pipe head 204, and the limiting mechanism 5 is gradually separated from the pipe receiving table 201 through the driving action of the driving mechanism 7 while the pipe receiving table 201 is horizontally limited. At this time, the clamping mechanism 4 is limited by the limiting mechanism 5, and when the limiting mechanism 5 is completely separated from the pipe receiving table 201, the pipe receiving table 201 is vertically supported by the continuous movement of the clamping mechanism 4, and the driving mechanism 7 drives the connection head 205 to cooperate with the output pipe head 204, thereby automatically cutting off the output pipe head 204 and the connection head 205, ensuring that there is no interference when a new pipe is loaded, improving the efficiency of pipe loading. When the pipe loading is completed, the limiting mechanism 5 is horizontally moved by the driving of the driving mechanism 7, and the limiting mechanism 5 is re-cooperated with the pipe receiving table 201 by passing through the new pipe, and the limiting mechanism 5 no longer limits the clamping mechanism 4 by the driving of the driving mechanism 7. The clamping mechanism 4 is reset under the internal elastic potential energy, thereby canceling the vertical support and horizontal limitation of the pipe receiving table 201, avoiding interference when the new pipe is extruded later. When the limiting mechanism 5 cooperates with the pipe receiving table 201, the connection head 205 is re-connected with the output pipe head 204 by the driving of the driving mechanism 7, the pump body 202 is restarted, and the new pipe is re-fed by the hydraulic mechanism 3 to re-deliver the soil, thereby achieving automatic pipe penetration for the new pipe and improving the efficiency of pipe laying.

[0021] As shown in Figure 1 , as a preferred embodiment of the present application, the hydraulic mechanism 3 includes a hydraulic cylinder 301 fixedly installed on the mounting table 101, and two hydraulic rods 302 are fixedly installed on the output end of the hydraulic cylinder 301. The surface of each hydraulic rod 302 is connected with an extrusion circular table 303, and the extrusion circular table 303 is slidingly connected with the mounting table 101.

[0022] In actual application, when the soil needs to be excavated, as shown in Figure 1 , at this time, the hydraulic cylinder 301 starts to run, and the hydraulic cylinder 301 drives the extrusion circular table 303 to move horizontally through the hydraulic rod 302, and the extrusion circular table 303 drives the pipe jacking head 103 to move horizontally on the guide rail 102, thereby excavating the soil through the pipe jacking head 103.

[0023] As shown in Figure 3 , Figure 4 , Figure 9 and Figure 10As shown, as another preferred embodiment of the present application, the clamping mechanism 4 comprises two movable racks 401 fixedly installed on the extrusion cone 303, each movable rack 401 is engaged with a main ratchet gear 402, the output end of the main ratchet gear 402 is connected with the input end of a bevel gear set 403, the output end of the bevel gear set 403 penetrates through the pipe receiving table 201 and is rotationally connected with the pipe receiving table 201, the output end of the bevel gear set 403 is coaxially fixedly installed with a rotating gear 404, the rotating gear 404 is engaged with a clamping rack 405, the clamping rack 405 is slidingly connected with the pipe receiving table 201, the clamping rack 405 is fixedly installed on a clamping cylinder 406, the clamping cylinder 406 is slidingly connected with a guide cylinder 407, the guide cylinder 407 is fixedly installed on the pipe receiving table 201, the clamping cylinder 406 is connected with the pipe receiving table 201 through a tension spring 408, and a supporting cylinder 409 matched with the clamping cylinder 406 is fixedly installed on the mounting table 101.

[0024] As shown in the actual application of the embodiment of the present application, when the pipe jacking machine head 103 completely enters the soil, as shown in the figure, Figure 9 At this time, the hydraulic mechanism 3 is reset, and the horizontal reset movement of the extrusion cone 303 drives the movable rack 401 to move horizontally synchronously, as shown in the figure, Figure 10 At this time, the engagement of the movable rack 401 and the main ratchet gear 402 drives the main ratchet gear 402 to rotate, the rotation of the main ratchet gear 402 drives the rotating gear 404 to rotate synchronously through the bevel gear set 403, and the rotation of the rotating gear 404 drives the clamping rack 405 to move vertically downward through the gear and rack engagement, as shown in the figure, Figure 4 Further driving the clamping cylinder 406 to move vertically downward, as shown in the figure, Figure 9 The clamping cylinder 406 vertically downwardly completes the butt joint with the supporting cylinder 409, at this time, the driving action of the driving mechanism 7 makes the limiting mechanism 5 limit the rotating gear 404, so as to avoid the reverse rotation of the rotating gear 404, at the same time, the driving of the driving mechanism 7 makes the limiting mechanism 5 gradually disengage from the pipe receiving table 201, and the clamping cylinder 406 is vertically supported through the action of the supporting cylinder 409, thereby vertically supporting the pipe receiving table 201, and then the driving action of the driving mechanism 7 drives the connecting head 205 to disengage from the output pipe head 204, thereby facilitating the feeding of the new pipe.

[0025] As shown in the actual application of the embodiment of the present application, when the pipe jacking machine head 103 completely enters the soil, as shown in the figure, Figure 5 , Figure 6 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12As shown, in another preferred embodiment of the present invention, the limiting mechanism 5 includes a push plate 501 mounted on the mounting platform 101, two extrusion plates 502 fixedly mounted on the push plate 501, an L-shaped rod 503 that cooperates with the extrusion plates 502 slidably mounted on the surface of the connecting platform 201, an extrusion spring 504 fixedly mounted on the surface of the L-shaped rod 503, a fixing plate 505 fixedly mounted on the surface of the connecting platform 201, one end of the extrusion spring 504 away from the L-shaped rod 503 being connected to the fixing plate 505, a movable ratchet 506 fixedly mounted on the surface of the L-shaped rod 503, the movable ratchet 506 meshing with a limiting gear 507, and the limiting gear 507 fixedly mounted on the rotating gear 404.

[0026] In practical applications, when the rotating gear 404 rotates, as in the embodiments of the present invention... Figure 8 and Figure 10 As shown, the rotating gear 404 drives the limiting gear 507 to rotate synchronously. Due to the setting of the moving ratchet 506, the rotation of the limiting gear 507 engages the teeth of the moving ratchet 506, thereby preventing the limiting gear 507 from reversing. After the new pipe is placed, as shown... Figure 9 As shown, at this time, the driving action of the driving mechanism 7 drives the push plate 501 to move horizontally, as... Figure 12 As shown, the movement of the push plate 501 re-coordinates with the control panel 201, as... Figure 8 , Figure 9 and Figure 10 As shown, the L-shaped rod 503 is pushed horizontally by the squeezing action of the squeezing plate 502, which in turn drives the moving ratchet 506 to move horizontally and disengage from the limiting gear 507. At this time, under the action of the tension spring 408, the locking mechanism 4 is reset, thereby causing the locking cylinder 406 to disengage from the support cylinder 409, so that the pipe platform 201 is released from the horizontal limit and vertical support, which facilitates the subsequent advancement of the new pipeline.

[0027] like Figure 9 As shown, in another preferred embodiment of the present invention, the pipe pulling mechanism 6 includes a pipe winding cylinder 601 rotatably connected to the pipe connecting platform 201. The output port of the pipe winding cylinder 601 is rotatably connected to the input pipe 203. A mud conveying pipe 602 is wound on the pipe winding cylinder 601. The output end of the mud conveying pipe 602 is fixedly connected to the pipe winding cylinder 601. The input end of the mud conveying pipe 602 is connected to the pipe jacking head 103.

[0028] In practical applications, when the pipe jacking head 103 moves, as in the embodiments of the present invention... Figure 9 As shown, in order to keep the position of the connecting pipe platform 201 unchanged, the unwinding is performed by rotating the pipe cylinder 601, thereby ensuring the stability of soil transportation.

[0029] like Figure 9As shown, as another preferred embodiment of the present application, the driving mechanism 7 comprises a first driving cylinder 701 and a second driving cylinder 703 fixedly installed on the mounting table 101, and the output ends of the first driving cylinder 701 and the second driving cylinder 703 are fixedly installed with a first telescopic rod 702 and a second telescopic rod 704, the surface of the first telescopic rod 702 is fixedly installed with the moving table 206, and the surface of the second telescopic rod 704 is fixedly installed with the pushing plate 501.

[0030] In actual application, when the hydraulic mechanism 3 drives the pipe jacking head 103 to dig soil, as shown, Figure 9 Figure 9 As shown, the first telescopic rod 702 and the second telescopic rod 704 are driven to extend by the driving action of the first driving cylinder 701 and the second driving cylinder 703, thereby driving the pipe connecting table 201 to move synchronously with the pipe jacking head 103, while ensuring that the connecting head 205 moves synchronously with the output pipe head 204, ensuring the stability of soil conveying, when the pipe connecting table 201 moves to the upper side of the supporting cylinder 409, the driving mechanism 7 stops moving, and after the pipe jacking head 103 completely enters the soil, the hydraulic mechanism 3 resets to drive the clamping mechanism 4 to cooperate, when the pipe connecting table 201 is horizontally limited, the second driving cylinder 703 starts to operate to drive the second telescopic rod 704 to reset, thereby driving the limiting mechanism 5 to rotate and limit the clamping mechanism 4, and the first telescopic rod 702 is reset by the first driving cylinder 701, so that the output pipe head 204 is disengaged from the cooperating input pipe 203, thereby realizing the later pipe penetrating operation.

[0031] The specific steps of the operation method of the water conservancy pipeline pipe jacking machine are as follows: Step one: before the hydraulic mechanism 3 drives the pipe jacking head 103 to dig the pipeline, the connecting head 205 is butted with the output pipe head 204 by the driving action of the driving mechanism 7, at this time the pump body 202 is opened, and when the hydraulic mechanism 3 drives the pipe jacking head 103 to dig the soil, the pumped soil is transported by the negative pressure of the pump body 202; Step two: when the pipe jacking head 103 enters the soil, the hydraulic mechanism 3 is reset at this time, and the pipe connecting table 201 is limited at the same time, and the pipe connecting table 201 stops running, the outlet of the output pipe head 204 is closed, at this time the connecting head 205 is disengaged from the cooperating output pipe head 204 under the action of the driving mechanism 7, and the limiting mechanism 5 and the pipe connecting table 201 are disengaged from the cooperating, at this time the new pipeline is hoisted to the guide rail 102 by external equipment; Step three: when the hoisting and placing of the new pipeline is completed, the connecting head 205 is reconnected with the output pipe head 204 by the driving of the driving mechanism 7, the pump body 202 is restarted to transport the soil, and the limiting mechanism 5 is reconnected with the pipe connecting table 201 by the driving of the driving mechanism 7, and the pipe connecting table 201 is released from the limiting; Step four: when the pipe connecting table 201 is released from the limiting, the new pipeline is driven by the hydraulic mechanism 3 to drive the pipe jacking machine head 103 to feed into the soil, so as to complete the laying of the pipeline by the circulation of the new pipeline.

[0032] The technical features of the above-mentioned embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0033] The above-mentioned embodiments only express several embodiments of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

[0034] The above-mentioned is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pipe jacking machine for water conservancy pipelines, characterized in that, The pipe jacking machine includes: Main frame (1): It is provided with a mounting platform (101), and a guide rail (102) for placing the pipe jacking machine head (103) and the pre-embedded pipe is fixedly installed on the surface of the mounting platform (101). Multiple rotating balls are installed on the guide rail (102). The connection mechanism (2) includes a connection platform (201) installed on the mounting platform (101). A pump body (202) for pumping mud is fixedly installed on the surface of the connection platform (201). An output pipe head (204) for discharging mud is provided on the pump body (202). An input pipe (203) for conveying mud is fixedly installed on the surface of the pump body (202). A mud conveying connector (205) is connected to the surface of the output pipe head (204). The connector (205) is fixedly installed on the moving platform (206), and the surface of the connector (205) is connected to an external conveying hose. Hydraulic mechanism (3): used to drive the pipe jacking machine head (103) and the pre-embedded pipe to move horizontally; Locking mechanism (4): used to limit the connection of the control panel (201); Limiting mechanism (5): releases the limit of the connecting plate (201) by cooperating with the driving mechanism (7); Pipe pulling mechanism (6): used to transport mud when the pipe jacking machine head (103) moves.

2. A pipe jacking machine for water conservancy pipelines according to claim 1, characterized in that, The hydraulic mechanism (3) includes a hydraulic cylinder (301) fixedly installed on the mounting platform (101). Two hydraulic rods (302) are fixedly installed at the output end of the hydraulic cylinder (301). The surface of each hydraulic rod (302) is connected to the extrusion truncated cone (303). The extrusion truncated cone (303) is slidably connected to the mounting platform (101).

3. A pipe jacking machine for water conservancy pipelines according to claim 2, characterized in that, The engaging mechanism (4) includes two movable racks (401) fixedly mounted on the extrusion frustum (303). Each movable rack (401) meshes with a main ratchet (402). The output end of the main ratchet (402) is connected to the input end of a bevel gear set (403). The output end of the bevel gear set (403) passes through the connecting plate (201) and is rotatably connected to the connecting plate (201). A rotating gear (404) is coaxially fixedly mounted on the output end of the bevel gear set (403). Engages with the engagement rack (405), the engagement rack (405) is slidably connected to the connecting plate (201), the engagement rack (405) is fixedly installed on the engagement cylinder (406), the engagement cylinder (406) is slidably connected to the guide cylinder (407), the guide cylinder (407) is fixedly installed on the connecting plate (201), the engagement cylinder (406) is connected to the connecting plate (201) through the tension spring (408), and a support cylinder (409) that cooperates with the engagement cylinder (406) is fixedly installed on the mounting platform (101).

4. A pipe jacking machine for water conservancy pipelines according to claim 3, characterized in that, The limiting mechanism (5) includes a push plate (501) mounted on the mounting platform (101), two extrusion plates (502) fixedly mounted on the push plate (501), an L-shaped rod (503) that cooperates with the extrusion plates (502) is slidably mounted on the surface of the connecting plate (201), an extrusion spring (504) is fixedly mounted on the surface of the L-shaped rod (503), a fixing plate (505) is fixedly mounted on the surface of the connecting plate (201), one end of the extrusion spring (504) away from the L-shaped rod (503) is connected to the fixing plate (505), a movable ratchet (506) is fixedly mounted on the surface of the L-shaped rod (503), the movable ratchet (506) meshes with the limiting gear (507), and the limiting gear (507) is fixedly mounted on the rotating gear (404).

5. A pipe jacking machine for water conservancy pipelines according to claim 1, characterized in that, The pipe pulling mechanism (6) includes a pipe winding cylinder (601) rotatably connected to the pipe connecting platform (201). The output port of the pipe winding cylinder (601) is rotatably connected to the input pipe (203). A mud conveying pipe (602) is wound on the pipe winding cylinder (601). The output end of the mud conveying pipe (602) is fixedly connected to the pipe winding cylinder (601). The input end of the mud conveying pipe (602) is connected to the pipe jacking head (103).

6. A pipe jacking machine for water conservancy pipelines according to claim 4, characterized in that, The drive mechanism (7) includes a first drive cylinder (701) and a second drive cylinder (703) fixedly installed on the mounting platform (101). The output ends of the first drive cylinder (701) and the second drive cylinder (703) are fixedly installed with a first telescopic rod (702) and a second telescopic rod (704). A moving platform (206) is fixedly installed on the surface of the first telescopic rod (702), and a push plate (501) is fixedly installed on the surface of the second telescopic rod (704).

7. A method for operating a pipe jacking machine for water conservancy pipelines, applicable to the pipe jacking machine for water conservancy pipelines as described in any one of claims 1-6, characterized in that: The specific steps of the operation method of this water conservancy pipeline pipe jacking machine are as follows: Step 1: Before the pipe jacking head (103) is driven by the hydraulic mechanism (3) to excavate the pipe, the connector (205) is connected to the output pipe head (204) by the driving action of the drive mechanism (7). At this time, the pump body (202) is turned on. When the hydraulic mechanism (3) drives the pipe jacking head (103) to excavate the soil, the excavated soil is transmitted by the negative pressure of the pump body (202). Step 2: When the pipe jacking head (103) enters the soil, the hydraulic mechanism (3) resets and limits the connection platform (201) at the same time. The connection platform (201) stops running and the outlet of the output pipe head (204) is closed. At this time, under the action of the drive mechanism (7), the connector (205) is disengaged from the output pipe head (204). At the same time, the limiting mechanism (5) and the connection platform (201) are disengaged. At this time, the new pipeline is hoisted onto the guide rail (102) by external equipment. Step 3: After the new pipeline is hoisted and placed, the drive mechanism (7) drives the connector (205) to reconnect with the output pipe head (204), the pump body (202) restarts to transport the soil, and the drive mechanism (7) drives the limit mechanism (5) to reconnect with the connection platform (201), and releases the limit on the connection platform (201); Step 4: After the connection of the pipe platform (201) is completed and the limit is released, the new pipe is driven by the hydraulic mechanism (3) to drive the pipe jacking head (103) into the soil, thereby circulating and pushing the new pipe to complete the laying of the pipe.

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