Pipe jacking end construction reinforcing device

Abstract

The invention relates to the technical field of jacking pipe end reinforcing devices, and discloses a jacking pipe end construction reinforcing device. The device comprises a top pipe and two embedded reinforcing assemblies arranged at the two ends of the top pipe. The embedded reinforcing assembly comprises a ring body internally provided with an annular cavity, embedded rings capable of horizontally moving and sliding are arranged in the annular cavity, and a plurality of first magnets distributed annularly are embedded in the ends, extending out of the annular cavity, of the embedded rings, so that the embedded rings on the two jacking pipes can be automatically attracted together after making contact with each other; and a plurality of annularly distributed second magnets are arranged at the end, located in the annular cavity, of the embedded ring. The reinforcing device for the end head of the jacking pipe has no male and female difference, free butt joint can be achieved, male and female switching can be completed, the orientation of the end head of the jacking pipe does not need to be noticed, the butt joint jacking construction of the jacking pipe is more convenient, and meanwhile the butt joint stability and sealing performance between the jacking pipes can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of pipe jacking end reinforcement devices, and in particular to a pipe jacking end construction reinforcement device. Background Art

[0002] Pipe jacking construction is a non-excavation pipeline laying construction technology. It mainly uses internal supports and main jacks and other devices to splice and push pipe sections (jacking pipes) into the soil layer to complete the laying of the pipeline. When performing pipe jacking construction, it is necessary to press several jacking pipes into the soil in batches. In order to ensure the integrity of the entire jacking pipeline (that is, there will be no misalignment or displacement between jacking pipes during the advancement process), it is necessary to set reinforcement devices at the ends of the segmented jacking pipes to improve the stability of the jacking pipe end reinforcement, ensure that the jacking pipe can remain stable during the construction process, prevent problems such as end damage and displacement, and at the same time ensure the sealing of the entire pipeline to avoid water seepage.

[0003] The existing top pipe end reinforcement device is generally a pair of annular fixing parts that respectively drive the U-shaped groove and the convex ring. The two annular fixing parts are respectively installed at the two ends of the top pipe, and are a male-female docking structure. In this way, when the top pipe is pushed forward, the convex ring on the rear top pipe reinforcement device can enter the U-shaped groove of the front top pipe reinforcement device, so that the front and rear top pipes can be embedded in this way. Although the embedding structures of the reinforcement devices of different top pipes are different, they are generally designed as a male-female docking structure. The advantage of this structure is that it can ensure the stability of the docking between the two top pipes and also has good sealing.

[0004] However, this also means that when the jacking pipe is lowered and pushed forward, in order to avoid the front and rear jacking pipes being unable to fit together, it is necessary to pay attention to the direction of the lowered jacking pipe. After the jacking pipe is lifted by the crane, if the direction is opposite, the direction of the jacking pipe needs to be reversed, which undoubtedly increases the difficulty of the jacking pipe construction. Therefore, it is necessary to propose a jacking pipe end construction reinforcement device that can fit together in both directions. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a pipe jacking end construction reinforcement device.

[0006] The present invention is implemented by the following technical scheme: a top pipe and two interlocking reinforcement components arranged at both ends of the top pipe; the interlocking reinforcement component comprises a ring body with an annular cavity arranged inside, an interlocking ring that can slide translationally is arranged in the annular cavity, and one end of the interlocking ring extending outside the annular cavity is embedded with a plurality of first magnets distributed in an annular shape, so that the interlocking rings on the two top pipes can be automatically adsorbed together after contact, and one end of the interlocking ring in the annular cavity is provided with a plurality of second magnets distributed in an annular shape; in this way, the interlocking ring moves with the inertia generated when the top pipe is pushed and is adsorbed on the inner wall of the annular cavity, so that the interlocking ring on the other top pipe is brought into the annular cavity of the current top pipe to achieve the interlocking of the two top pipes.

[0007] As a further improvement of the above scheme, a retaining ring is provided on the outer ring of the embedded ring, and a plurality of third magnets distributed in a ring shape are embedded on the side of the retaining ring away from the top pipe. The plurality of third magnets are all adsorbed on the inner wall of the annular cavity, so as to prevent the embedded ring from sliding randomly and being adsorbed on the inner wall of the annular cavity through the second magnet.

[0008] As a further improvement of the above solution, a safety ring is provided at one end of the embedded ring close to the top pipe, the safety ring is provided with multiple pairs of pre-cut slits distributed in an annular shape, and a top ring for breaking the safety ring is provided on the inner wall of the annular cavity.

[0009] As a further improvement of the above scheme, a plurality of top blocks distributed in a ring shape are fixedly connected to one end of the ring body away from the jacking pipe, and the multiple top blocks can protect the embedded ring to prevent the hydraulic propulsion system from pushing the embedded ring near one end of the hydraulic push rod system into the annular cavity when pushing the jacking pipe.

[0010] As a further improvement of the above scheme, slots are provided between the multiple top blocks, the width of the slots is the same as the width of the top blocks, and the front end of the top blocks is triangular, so that after the front and rear top pipes are connected under the jacking of the hydraulic propulsion system, the top blocks between the two top pipes will be dislocated from each other and enter the slots on the two ring bodies respectively.

[0011] As a further improvement of the above scheme, the embedded ring is provided with a plurality of through-holes which are distributed in a ring shape and are equally spaced, and the top ring is provided with a plurality of top rods which are distributed in a ring shape and are equally spaced, the number of the through-holes is twice the number of the top rods, and one end of the plurality of top rods respectively extends into the corresponding through-holes and is provided with a block for limiting sliding installation.

[0012] As a further improvement of the above solution, a pipe groove is provided at one end of the ring body away from the embedded ring, and one end of the top pipe extends into the pipe groove and is fixedly connected to the ring body.

[0013] As a further improvement of the above scheme, a sliding-assisting structure is arranged on the embedded ring, and the sliding-assisting structure is a plurality of pairs of sliding balls distributed in an annular shape and embedded in the inner ring of the embedded ring. A plurality of sliding tracks distributed in an annular shape are arranged on the inner wall of the annular cavity, and the plurality of sliding balls respectively extend into the corresponding slide tracks and are in sliding contact with the corresponding slide tracks.

[0014] As a further improvement of the above solution, the end of the embedded ring away from the top pipe is in a near-conical shape, so that it is less likely to be stuck when entering the annular cavity of another ring body.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By arranging a slidable embedded ring in the ring body, and arranging a first magnet and a second magnet at both ends of the embedded ring, the two embedded rings on the two jacking pipes are adsorbed together after contact, and the inertia generated when the advancement of the jacking pipe is paused is used to allow the two adsorbed embedded rings to slide into any ring body at will, and the second magnet is used to achieve adsorption and fixation, so that the other embedded ring enters the current ring body, so as to achieve the embedding work of the two jacking pipe ends. Compared with the male-female docking structure on the existing jacking pipe end reinforcement device, it can be converted between the male and female docking structures, so that the jacking pipe does not need to be turned when the jacking pipe is lowered, so that the jacking pipe construction is more convenient and efficient; By arranging a third magnet on the retaining ring of the embedded ring, arranging a safety ring on the embedded ring, and arranging a top ring, a top block and a slot on the ring body as a safety structure of the embedded ring, it is not easy for the embedded ring to retreat into the annular cavity and be adsorbed on the inner wall of the annular cavity in advance by the second magnet due to operation errors or other external factors when the embedded reinforcement component on the top pipe is not embedded with the embedded reinforcement component on the other top pipe. In addition, the top block can not only protect the embedded ring so that the embedded ring will not retract into the annular cavity under the push of the hydraulic propulsion system, but also can make the two embedded reinforcement components realize normal embedding through circumferential misalignment through the slot. In addition, the pre-embedding is realized through the top block, so that the ends of the two top pipes can be kept accurately aligned, avoiding the embedded ring from being unable to slide smoothly into the annular cavity of the other ring body due to inaccurate alignment. By arranging a plurality of push rods distributed in an annular shape on the ring body, arranging a block that can limit sliding inside the push rods, and arranging through openings on the embedded ring that are twice the number of the push rods, when the embedded reinforcement components on the two push pipes are embedded, the push rods on the two embedded reinforcement components will also be staggered due to circumferential rotation and aligned with the through openings without push rods inside, so that the push rod can extend into the through opening of the other embedded ring and be limited by the block, thereby ensuring that the two push pipes can be anti-slip limited after being embedded together through the embedded reinforcement components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is an overall display diagram of the jacking pipe end construction reinforcement device and the jacking pipe of the present invention; Figure 2 This is a disassembled display diagram of the pipe jacking end construction reinforcement device and the pipe jacking of the present invention; Figure 3 It is a planar cross-sectional display diagram of the pipe jacking end construction reinforcement device and the pipe jacking of the present invention; Figure 4 for Figure 3 A magnified view of part A; Figure 5 The disassembled display diagram of the embedded reinforcement component; Figure 6 It is a cross-sectional display diagram and a partial enlarged diagram of the disassembled ring body; Figure 7 The figure is a disassembled display diagram of the embedded ring, the first magnet, the second magnet and the safety ring; Figure 8 It is a partial cross-sectional view of the disassembled ring body; Fig. 9 A diagram showing the distribution of the two poles of a plurality of first magnets in the embedded ring; Fig.10 A diagram showing a first fitting process of a fitting reinforcement assembly between two jacking pipes; Fig.11 A diagram showing a second fitting process of a fitting reinforcement assembly between two jacking pipes; Fig.12 This is a diagram showing the jacking and fitting of the jacking pipe.

[0017] Description of main symbols: 1. Top pipe; 2. Ring body; 3. Annular cavity; 4. Embedded ring; 5. First magnet; 6. Second magnet; 7. Retaining ring; 8. Third magnet; 9. Safety ring; 91. Pre-cut slit; 10. Top ring; 11. Top block; 12. Slot; 13. Through-hole; 14. Top rod; 15. Block; 16. Pipe groove. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Please combine Figures 1 to 12The top pipe end construction reinforcement device comprises: a top pipe 1 and two embedded reinforcement components arranged at both ends of the top pipe 1, the embedded reinforcement component comprises a ring body 2 with an annular cavity 3 arranged inside, the ring body 2 is composed of a main ring body and two auxiliary ring bodies connected to the main ring body by bolts, a pipe groove 16 is arranged at one end of the ring body 2 away from the embedded ring 4, one end of the top pipe 1 extends into the pipe groove 16 and is fixedly connected to the ring body 2, a translationally slidable embedded ring 4 is arranged in the annular cavity 3, the end of the embedded ring 4 away from the top pipe 1 is in a near cone shape, so that it is less likely to be stuck when entering the annular cavity 3 of the other ring body 2, and a plurality of first magnets 5 distributed in an annular shape are embedded at one end of the embedded ring 4 extending outside the annular cavity 3, and the two adjacent first magnets 5 have opposite poles, for example, when the outward side of a first magnet 5 is an N pole, the outward sides of the two adjacent first magnets 5 on the left and right are S poles, so that after the two top pipes 1 are in contact, the two top pipes 1 are embedded with the embedded rings 4 on the reinforcement component There will be no situation where like charges repel each other, but opposite charges attract each other through the circumferential misalignment of the top pipe 1, so as to avoid the situation where the two embedded rings 4 have the same magnetic poles on the outward side of the first magnet 5 and cannot attract each other, so that the embedded rings 4 on the two top pipes 1 can automatically adsorb together after contact, and a plurality of second magnets 6 distributed in an annular shape are arranged at one end of the embedded ring 4 in the annular cavity 3, so that the embedded ring 4 is adsorbed to the inner wall of the annular cavity 3 as the inertia generated when the top pipe 1 is pushed forward, so that the embedded ring 4 on the other top pipe 1 is brought into the annular cavity 3 of the current top pipe 1 to achieve the embedding of the two top pipes 1, and a sliding-aiding structure is arranged on the embedded ring 4, which is a plurality of pairs of sliding balls distributed in annular shapes embedded in the inner ring of the embedded ring 4, and a plurality of sliding tracks distributed in annular shapes are arranged on the inner wall of the annular cavity 3, and the plurality of sliding balls respectively extend into the corresponding slideways and are in sliding contact with the corresponding slideways, and the sliding-aiding structure includes but is not limited to sliding balls, and can also be replaced by other means, such as slide rails.

[0020] Through the above technical scheme, the two embedded rings 4 on the two jacking pipes 1 will be adsorbed together after contact, and the inertia generated when the advancement of the jacking pipe 1 is paused can be used to allow the two embedded rings 4 adsorbed together to slide into any ring body 2 at will, and the second magnet 6 is used to achieve adsorption and fixation, so that the other embedded ring 4 can enter the current ring body 2, so as to achieve the embedding work of the two jacking pipes 1 ends. Compared with the male and female docking structure on the existing jacking pipe end reinforcement device, it can be converted between the male and female docking structures, so that the jacking pipe 1 does not need to be adjusted in direction when it is lowered, so that the jacking construction is more convenient and efficient. At the same time, this embedding method can also ensure the sealing between the two jacking pipes 1.

[0021] The outer ring of the embedded ring 4 is provided with a retaining ring 7, and a plurality of third magnets 8 distributed in a ring shape are embedded on the side of the retaining ring 7 away from the top pipe 1. The plurality of third magnets 8 are all adsorbed to the inner wall of the annular cavity 3, so as to prevent the embedded ring 4 from sliding randomly and being adsorbed to the inner wall of the annular cavity 3 through the second magnet 6. The third magnet 8 serves as the first insurance for the embedded ring 4, which enables the embedded ring 4 to be stably in a state to be deployed.

[0022] A safety ring 9 is provided at one end of the embedded ring 4 close to the top pipe 1, and a plurality of pairs of pre-cut slits 91 distributed in an annular shape are provided on the safety ring 9. A top ring 10 for breaking the safety ring 9 is provided on the inner wall of the annular cavity 3. The safety ring 9 serves as a second insurance for the embedded ring 4, which prevents the embedded ring 4 from being adsorbed to the inner wall of the annular cavity 3 after losing the adsorption of the third magnet 8.

[0023] The surfaces of the first magnet 5, the second magnet 6 and the third magnet 8 are all wrapped with a rubber layer, which not only plays a role of buffering protection, but also ensures the sealing between the two top pipes 1 when the two interlocking reinforcement components are interlocked.

[0024] A plurality of annularly distributed top blocks 11 are fixedly connected to one end of the ring body 2 away from the top pipe 1, and the embedded ring 4 can be protected by the plurality of top blocks 11. Slots 12 are arranged between the plurality of top blocks 11, and the width of the slots 12 is the same as that of the top blocks 11. The front end of the top block 11 is in a triangular shape, so that after the front and rear top pipes 1 are butted under the jacking of the hydraulic propulsion system, the top blocks 11 between the two top pipes 1 will be mutually displaced and enter the slots 12 on the two ring bodies 2 respectively, so that the top blocks 11 can protect the embedded ring 4, and at the same time will not affect the contact and adsorption between the embedded rings 4 on the two top pipes 1. As the third insurance of the embedded ring 4, the top blocks 11 can not only This is to prevent the hydraulic propulsion system from pushing the embedded ring 4 near one end of the hydraulic push rod system into the annular cavity 3 when pushing the jacking pipe 1. At the same time, the two jacking pipes 1 can be misaligned when being pushed in, so as to make a layout for the subsequent clamping of the two embedded rings 4 through the push rod 14. At the same time, it also solves the problem that the first magnets 5 on the two embedded rings 4 may repel each other with the same charges, resulting in the two embedded rings 4 being unable to be adsorbed together. Moreover, when the top blocks 11 on the two jacking pipes 1 are inserted into each other's slots 12, the two jacking pipes 1 are pre-jointed, which ensures the accuracy of the alignment of the two jacking pipes 1, so that the subsequent two embedded rings 4 will not be unable to move due to inaccurate alignment when being engaged.

[0025] The embedded ring 4 is provided with a plurality of through-holes 13 which are distributed in an annular shape and are equally spaced, and the top ring 10 is provided with a plurality of push rods 14 which are distributed in an annular shape and are equally spaced. The number of the through-holes 13 is twice the number of the push rods 14. One ends of the plurality of push rods 14 extend into the corresponding through-holes 13 respectively and are provided with blocks 15 which are limitedly slidably installed. The plurality of first magnets 5 and the safety ring 9 are also provided with through-holes 13, so that the first magnets 5 and the safety ring 9 will not cause obstruction to the push rods 14.

[0026] Through the above technical solution, when the interlocking reinforcement components on the two jacking pipes 1 are interlocked, the push rods 14 on the two interlocking reinforcement components will be staggered due to circumferential rotation and aligned with the through-hole 13 without the push rod 14 inside, so that the push rod 14 can extend into the through-hole 13 of the other interlocking ring 4 and be limited by the clamping block 15, thereby ensuring that the two jacking pipes 1 can achieve anti-slip limitation after being interlocked together through the interlocking reinforcement components.

[0027] The implementation principle of a pipe jacking end construction reinforcement device in the embodiment of the present application is: When the front and rear ends of the two jacking pipes 1 are pushed against each other by the hydraulic propulsion system, the chimeric reinforcement components at the adjacent ends of the two jacking pipes 1 are pushed against each other, and the chimeric reinforcement component close to the end of the hydraulic propulsion system will push against the hydraulic propulsion system through multiple top blocks 11, so as to protect the embedded ring 4 at this end, so as to prevent the hydraulic propulsion system from pushing the embedded ring 4 at this end of the jacking pipe 1 into the annular cavity 3 when the jacking pipe 1 is pushed. When the top blocks 11 on the chimeric reinforcement components at one end of the two adjacent jacking pipes 1 are pushed against each other, the two jacking pipes 1 will be caused to rotate circumferentially to a certain extent (the front end of the top block 11 is in a triangular shape, and the two top blocks 11 will guide each other to misalign after being pushed against each other), so that the top blocks 11 on the two chimeric reinforcement components are respectively inserted into the corresponding slots 12, thereby completing the preliminary docking between the two jacking pipes 1; Subsequently, the embedded rings 4 on the two embedded reinforcement components come into contact and are attracted together under the action of the first magnet 5, and as the top pipe 1 continues to be pushed, the two embedded rings 4 are pushed into the corresponding annular cavities 3 respectively until they abut against the corresponding safety rings 9, and as the top pipe 1 continues to be pushed, the two top rings 10 squeeze the two safety rings 9 respectively until one or both of the safety rings 9 break from the pre-cut slit 91, and then the two embedded rings 4 continue to go deeper until the two ring bodies 2 come into contact; Since the embedded ring 4 can slide in the annular cavity 3, the two embedded rings 4 adsorbed together can slide to one side under the action of inertia generated when the top pipe 1 is pushed, and adsorb on the inner wall of one of the annular cavities 3 under the action of the second magnet 6. At this time, one end of the other embedded ring 4 is synchronously extended into the annular cavity 3 to form an embedded connection; At the same time, when the two chimeric reinforcement components rotate circumferentially under the action of the top block 11, the top rods 14 in the two chimeric reinforcement components will be aligned with the through-holes 13 without the top rod 14 in the other party (the number of through-holes 13 is twice that of the top rods 14, and the through-holes 13 with the top rods 14 are arranged at intervals, so that when the two chimeric reinforcement components are circumferentially misaligned, the originally relative top rods 14 will also be misaligned and aligned with the through-holes 13 without the top rod 14 in the interior), so that the top rod 14 of one party will penetrate the through-hole 13 of the other party When the push rod 14 passes through the through hole 13, the block 15 without restriction will automatically fall down to achieve engagement, so that the two embedded rings 4 attracted by the first magnet 5 are fixedly connected through the push rod 14 and the block 15, so that the two jacking pipes 1 are more stable and will not be separated. In this way, the pre-jointing of the two jacking pipes 1 is achieved through the push block 11, and the subsequent engagement of the two jacking pipes 1 is achieved through the two embedded rings 4. The joining of the two embedded rings 4 not only has stability, but also has good sealing performance.

[0028] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A pipe jacking end construction reinforcement device, characterized in that: include: A jacking pipe (1) and two interlocking reinforcement components arranged at two ends of the jacking pipe (1); The embedded reinforcement component comprises a ring body (2) with an annular cavity (3) disposed therein, an embedded ring (4) which can slide in translation is disposed in the annular cavity (3), a plurality of first magnets (5) distributed in an annular shape are embedded in one end of the embedded ring (4) extending outside the annular cavity (3), so that the embedded rings (4) on the two top pipes (1) can automatically be adsorbed together after contact, and a plurality of second magnets (6) distributed in an annular shape are disposed in one end of the embedded ring (4) located in the annular cavity (3); In this way, the insert ring (4) is adsorbed onto the inner wall of the annular cavity (3) as the inertia generated when the jacking pipe (1) is pushed forward, so that the insert ring (4) on another jacking pipe (1) is brought into the annular cavity (3) of the current jacking pipe (1) to achieve the insertion of the two jacking pipes (1).

2. The pipe top end construction reinforcement device according to claim 1, characterized in that: The outer ring of the embedded ring (4) is provided with a retaining ring (7), and a plurality of third magnets (8) distributed in an annular shape are embedded on a side of the retaining ring (7) away from the top pipe (1), and the plurality of third magnets (8) are all attracted to the inner wall of the annular cavity (3), thereby preventing the embedded ring (4) from sliding randomly and being attracted to the inner wall of the annular cavity (3) through the second magnet (6).

3. The pipe top end construction reinforcement device according to claim 1, characterized in that: A safety ring (9) is provided at one end of the insert ring (4) close to the top pipe (1), the safety ring (9) being provided with a plurality of pairs of pre-cut slits (91) distributed in an annular shape, and a top ring (10) for rupturing the safety ring (9) is provided on the inner wall of the annular cavity (3).

4. The pipe top end construction reinforcement device according to claim 2, characterized in that: A plurality of annularly distributed top blocks (11) are fixedly connected to one end of the ring body (2) away from the top pipe (1). The plurality of top blocks (11) can protect the insert ring (4) to prevent the insert ring (4) near one end of the hydraulic push rod system from being pushed into the annular cavity (3) when the hydraulic propulsion system pushes the top pipe (1).

5. The pipe top end construction reinforcement device according to claim 4, characterized in that: Slots (12) are provided between the plurality of top blocks (11), the width of the slots (12) being the same as the width of the top blocks (11), and the front ends of the top blocks (11) being triangular in shape, so that after the front and rear top pipes (1) are butted together under the jacking of the hydraulic propulsion system, the top blocks (11) between the two top pipes (1) are mutually displaced and respectively enter the slots (12) on the two ring bodies (2).

6. The pipe top end construction reinforcement device according to claim 3, characterized in that: The insert ring (4) is provided with a plurality of through openings (13) distributed in an annular shape and at equal intervals, and the top ring (10) is provided with a plurality of top rods (14) distributed in an annular shape and at equal intervals, the number of the through openings (13) is twice the number of the top rods (14), and one end of each of the plurality of top rods (14) extends into the corresponding through openings (13) and is provided with a clamping block (15) for limiting sliding.

7. The pipe top end construction reinforcement device according to claim 1, characterized in that: A pipe groove (16) is provided at one end of the ring body (2) away from the insert ring (4), and one end of the top pipe (1) extends into the pipe groove (16) and is fixedly connected to the ring body (2).

8. The pipe top end construction reinforcement device according to claim 1, characterized in that: The insert ring (4) is provided with a sliding-assisting structure, which is a plurality of pairs of sliding beads arranged in an annular shape and embedded in the inner ring of the insert ring (4). The inner wall of the annular cavity (3) is provided with a plurality of sliding paths arranged in an annular shape, and the plurality of sliding beads extend into corresponding sliding paths and are in sliding contact with the corresponding sliding paths respectively.

9. The pipe top end construction reinforcement device according to claim 1, characterized in that: The end of the insert ring (4) away from the top pipe (1) is in a nearly conical shape, so that it is less likely to be stuck when entering the annular cavity (3) of another ring body (2).

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