Lining hose traction head for trenchless repair

Abstract

The invention relates to the technical field of application of lining hoses for trenchless repair, in particular to a traction head of a lining hose for trenchless repair, which comprises a first connecting end fixedly mounted at one end of a super-long pipe, a second connecting end fixedly sleeved at two ends of the lining hose, and a traction end, the traction end and the lining hose movably penetrate through the first connecting end and extend out of the other end of the super-long pipe, and the internal thread connector is fixedly installed at the other end, away from the super-long pipe, of the first connecting end. One end of the super-long pipe is connected with the first connecting end, the two ends of the lining hose are connected with the second connecting end and the traction end respectively, and the limiting clamping block on the limiting rod is embedded in the limiting clamping groove of the synchronous circular ring, so that the connecting stability of the outer sleeve and the first connecting end is further improved; the first connecting end and the second connecting end which are stressed are prevented from being extruded in the opposite direction or pulled in the opposite direction.

Description

Technical Field

[0001] The invention relates to the technical field of application of a liner hose for trenchless repair, and in particular to a liner hose traction head for trenchless repair. Background Art

[0002] Modern trenchless technology can control the laying direction and burial depth of underground pipelines with high precision, and can allow pipelines to bypass previously undiscovered underground obstacles, solving the problem of disturbance to the surrounding environment and normal life of residents caused by traditional trenching and pipe laying construction. Trenchless technology avoids damage and adverse effects on traffic, the environment, and the foundations of surrounding buildings. Trenchless construction will not block traffic, damage vegetation, or affect the normal life and work order of units and residents along the line.

[0003] There are many operational difficulties in the application of lining hose for trenchless repair. First, it is impossible to put the lining hose with a long structure into the same long extra-long pipe, which is very likely to cause the lining hose to be wrinkled and blocked in the extra-long pipe. Secondly, it is impossible to effectively pull the soft lining hose, making it difficult to achieve the same position correspondence between the lining hose and the extra-long pipe. As a supporting facility in trenchless repair operations, the lining hose needs to be assembled and connected under existing conditions for the convenient laying and safe use of the lining hose. At present, a structure similar to a flange or a sleeve is mostly used. For example, a pipeline trenchless heat-insulating hose lining repair connection joint disclosed in announcement number CN220186137U adopts a tube expansion device to expand the diameter of the joint core and the hose, and the hose is fixed by the serrated structure in the bite space. The locking head groove of the joint core bites with the inner convex end of the locking head of the joint jacket, and the fixing ring is fastened by a fixing bolt to fix it. The ring is fastened by fixing bolts, and the inclined surface on the inner ring of the fixing ring and the inclined surface on the outer convex end of the locking head are squeezed and tightened. However, the connection between the two sections of the pipe is completely dependent on the bite of the fixing ring, and the stability and fit of the connection between the two sections of the pipe cannot be guaranteed, which can easily cause loosening. Moreover, there is a lack of supporting buffer measures after the assembly connection achieved in this way. When subjected to external pressure or internal impact, the fixed pipe structure can only cause the connection ends to be squeezed or pulled in the opposite direction, which will not only aggravate the separation between the two sections of the pipe, but may even easily cause the pipe structure itself to bend and break. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the liner hose connection structure for non-excavation repair lacks firmness and sealing and is easily caused to fall off due to force, and to propose a liner hose traction head for non-excavation repair.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A lining hose pulling head for trenchless repair includes a first connecting end fixedly mounted on one end of an extra-long tube, a second connecting end fixedly mounted on both ends of the lining hose and a pulling end, the first connecting end and the second connecting end are assembled and connected, the pulling end and the lining hose movably penetrate the first connecting end and extend to the other end of the extra-long tube, and also includes: An internal thread joint, the internal thread joint being fixedly mounted on the other end of the first connecting end away from the extra-long tube; A sealing sleeve, wherein the sealing sleeve is fixedly mounted on the second connecting end; An inner connecting pipe, which is movably disposed in the sealing sleeve and the second connecting end, and is used for assembling and connecting the sealing sleeve and the internal threaded joint; A reinforcement member is installed on the inner connecting pipe and the first connecting end head, and the reinforcement member is used to reinforce the connection between the first connecting end head and the inner connecting pipe.

[0006] Preferably, the internal thread joint is located on an end of the first connection end facing the second connection end, and the sealing sleeve is located on an end of the second connection end facing the first connection end.

[0007] Preferably, the inner connecting pipe comprises: An inner core tube, wherein the inner core tube is slidably sleeved in the second connecting end and the sealing sleeve; An external threaded joint and an outer sleeve, wherein the external threaded joint is fixedly mounted on the outer end of the inner core tube located on the sealing sleeve, and the external threaded joint is fixedly sleeved with the other end of the liner hose away from the pulling end, and the external threaded joint corresponds to the internal threaded joint, and the outer sleeve is fixedly mounted on the outer end of the inner core tube located on the sealing sleeve, and the external threaded joint is located in the outer sleeve; A sealing rubber ring, the sealing rubber ring is fixedly mounted on the inner end of the inner core tube located in the second connecting end head; A limiting flange, the limiting flange is fixedly sleeved on the middle end of the inner core tube located in the sealing sleeve; A first spring and a booster flange corresponding to the sealing rubber ring, wherein the first spring is welded inside one end of the second connecting end connected to the sealing sleeve, the booster flange is fixedly connected to the first spring, and the booster flange is movably sleeved on the inner core tube; A synchronous rotating disk, which is rotatably mounted in one end of the sealing sleeve away from the second connecting end, and is movably sleeved on the inner core tube; A guide rod and a second spring, wherein the guide rod is integrally connected to the synchronous rotating disk, and the guide rod slides through the limiting flange, the second spring is welded between the limiting flange and the synchronous rotating disk, and the second spring is sleeved on the guide rod; The buffer support tooling is arranged on the outer end of the inner core tube extending out of the sealing sleeve, and the buffer support tooling is located between the sealing sleeve and the outer sleeve.

[0008] Preferably, a wedge-shaped annular groove is provided in the sealing rubber ring, and the booster flange is a wedge-shaped annular rail corresponding to the wedge-shaped annular groove.

[0009] Preferably, the buffer support tooling comprises: A movable sleeve and a rubber ring, wherein the movable sleeve is slidably sleeved on the inner core tube, and the rubber ring is concentrically sleeved on the movable sleeve; A first support rod and a second support rod, wherein the pin shaft of the first support rod is installed on the movable sleeve, and the pin shaft of the second support rod is connected to an end of the first support rod away from the movable sleeve; A connecting block for fixing the rubber ring, wherein the connecting block pin is installed on an end of the second supporting rod away from the first supporting rod; A convex telescopic rod and a third spring, wherein the convex telescopic rod is slidably sleeved in the movable collar, the third spring is welded between the movable collar and the convex telescopic rod, and the third spring is sleeved on the convex telescopic rod; A third support rod, wherein the third support rod pin connects the first support rod and the convex telescopic rod.

[0010] Preferably, the first support rod, the second support rod, the connecting block, the convex telescopic rod, the third spring, and the third support rod are equidistantly distributed between the movable sleeve ring and the rubber ring in a one-to-one correspondence; The sealing sleeve and the outer sleeve are both provided with a clamping groove for a movable sleeve rubber ring.

[0011] Preferably, the reinforcement comprises: A limiting long groove, a fourth spring located in the limiting long groove and welded therein, and a limiting slider, wherein the limiting long groove is opened on the outer sleeve, the fourth spring is welded in the limiting long groove, and the limiting slider is slidably installed in the limiting long groove; A limit rod and a limit ring, wherein the limit rod pin is installed on the outer sleeve, and the limit rod is movably supported by a limit slider, and the limit ring is movably sleeved on the limit rod; A synchronous ring, the synchronous ring being rotatably mounted on the first connecting end; An adapted limit card slot and a limit card block, wherein the limit card slot is provided on the synchronous ring, and the limit card block is integrally connected to the limit rod; A supporting pulley is rotatably mounted on the limiting rod.

[0012] Preferably, a traction support rod is pin-connected between the limit slider and the limit rod; The limiting rod is provided with a limiting bevel groove for fitting a limiting ring, the limiting bevel groove is composed of a plane cut and an inclined cut, the limiting ring is provided with a limiting opening corresponding to the limiting bevel groove, and the limiting opening is a funnel-shaped structure.

[0013] Preferably, a limiting countersunk hole corresponding to the inclined cutout in the limiting bevel groove is provided on the limiting circular ring, and a locking screw for fixing the limiting rod and the limiting circular ring is threadedly installed in the limiting countersunk hole.

[0014] Preferably, the pulling end comprises: A first clamping plate and a second clamping plate fixedly abutting against the lining hose, wherein the first clamping plate and the second clamping plate are fixedly sleeved on the other end of the lining hose away from the external threaded joint; A first locker and a second locker, wherein the first locker and the second locker are fixedly mounted on the first clamping plate and the second clamping plate respectively; Locking bolts, two of which are installed in the first locking device and the second locking device respectively; A synchronous chain, wherein the synchronous chain is fixedly connected between the first locking device and the second locking device; An anti-slip through hole is provided in the first clamping plate.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention connects a first connecting end to one end of the extra-long tube, and connects a second connecting end and a pulling end to both ends of the lining hose respectively, and connects an internal threaded joint and a sealing sleeve to the first connecting end and the second connecting end respectively, which are assembled and connected through an internal connecting pipe, so that the first connecting end and the second connecting end can be assembled and connected after the lining hose and the extra-long tube are in the same position.

[0016] 2. The present invention has an inner core tube that is movably mounted inside the second connecting end and the sealing sleeve and corresponds to the first connecting end. The inner core tube is used to set an inner connecting tube that is elastically supported by a first spring, and includes an external threaded joint, an outer sleeve, a sealing rubber ring and a limiting flange, so that the inner connecting tube corresponds to the first connecting end and the internal threaded joint and can be spirally telescopically adjusted inside the second connecting end and the sealing sleeve, thereby achieving fixed contact docking between the inner connecting tube and the first connecting end.

[0017] 3. The present invention sets a concentrically arranged movable ring and a rubber ring on the outer end of the inner core tube extending out of the sealing sleeve, and sets a convex telescopic rod elastically supported by a third spring, a first support rod, a second support rod and a third support rod between the movable ring and the rubber ring, so that the rubber ring can be flexibly telescopically adjusted between the sealing sleeve and the outer sleeve to provide a buffer protection set for the exposed inner core tube.

[0018] 4. The present invention installs a limit rod elastically supported by a fourth spring on a pin shaft on the outer sleeve, and arranges a horizontally movable and fixed limit ring on the limit rod by means of a limit inclined groove and a limit opening to limit the opening and closing of the limit rod, and the limit block on the limit rod is embedded in the limit groove of the synchronous ring to further improve the connection stability between the outer sleeve and the first connecting end, and at the same time, a supporting pulley is arranged on the limit rod, so that the stressed first connecting end can be flexibly extended and retracted in the sealing sleeve through the inner connecting tube, so as to avoid the stressed first connecting end and the second connecting end being squeezed toward each other or pulled in the opposite direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a liner hose traction head for trenchless repair proposed by the present invention; Figure 2 A bottom view of a liner hose traction head for trenchless repair proposed by the present invention; Figure 3 A schematic diagram of the connection between a first connection end of a liner hose traction head for trenchless repair and a liner hose provided by the present invention; Figure 4 A schematic diagram of a state in which a first connection end and a second connection end of a liner hose traction head for trenchless repair proposed by the present invention are separated; Figure 5 A cross-sectional view of a liner hose traction head for trenchless repair proposed by the present invention; Figure 6 It is a schematic diagram of the co-positioned corresponding state of the extra-long tube and the lining hose of the lining hose traction head for trenchless repair proposed by the present invention; Figure 7 This is a schematic structural diagram of a first connection end and an internal thread joint of a liner hose traction head for trenchless repair proposed by the present invention; Figure 8 A cross-sectional view of a first connection end and an internal thread joint of a liner hose traction head for trenchless repair proposed by the present invention; Fig. 9 This is a schematic diagram of the structure of a second connecting end and a sealing sleeve of a liner hose traction head for trenchless repair proposed by the present invention; Fig.10 A cross-sectional view of a second connection end and a sealing sleeve of a liner hose traction head for trenchless repair proposed by the present invention; Fig.11 This is a schematic diagram of the internal connecting pipe structure of a lining hose traction head for trenchless repair proposed by the present invention; Fig.12 This is a schematic diagram of the structure of an inner core tube, an outer sleeve, a sealing rubber ring and a limiting flange of a lining hose traction head for trenchless repair proposed by the present invention; Fig.13 A cross-sectional view of an inner core tube, an outer threaded joint, an outer sleeve, a sealing rubber ring and a limiting flange of a liner hose traction head for trenchless repair proposed by the present invention; Fig.14 This is a schematic diagram of a buffer support tooling structure of a liner hose traction head for trenchless repair proposed by the present invention; Fig.15 For the present invention Fig.14 A schematic diagram of the enlarged structure of part A; Fig.16 A schematic diagram of the reinforcement structure of a liner hose traction head for trenchless repair proposed by the present invention; Fig.17 A schematic diagram of the installation of a limit rod of a lining hose traction head for trenchless repair proposed by the present invention; Fig.18 This is a schematic diagram of a limiting circular ring structure of a lining hose traction head for trenchless repair proposed by the present invention; Fig.19 This is a schematic diagram of the synchronous ring structure of a liner hose traction head for trenchless repair proposed by the present invention.

[0020] In the figure: 1. First connecting end; 2. Second connecting end; 3. Internal thread joint; 4. Sealing sleeve; 5. Inner connecting tube; 501. Inner core tube; 502. External threaded joint; 503. Outer sleeve; 504. Sealing rubber ring; 505. Limiting flange; 506. First spring; 507. Pressurizing flange; 508. Synchronous rotating disk; 509. Guide rod; 510. Second spring; 511, buffer support tooling; 51101, movable sleeve; 51102, first support rod; 51103, second support rod; 51104, connecting block; 51105, rubber ring; 51106, convex telescopic rod; 51107, third spring; 51108, third support rod; 6. Reinforcement; 601. Limiting long groove; 602. Fourth spring; 603. Limiting slider; 604. Limiting rod; 605. Traction support rod; 606. Limiting inclined groove; 607. Limiting ring; 608. Limiting opening; 609. Limiting countersunk hole; 610. Synchronous ring; 611. Limiting slot; 612. Limiting block; 613. Support pulley; 7. Pulling end; 701. First clamp; 702. Second clamp; 703. First locker; 704. Second locker; 705. Locking bolt; 706. Synchronous chain; 707. Anti-dropping through hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-Figure 19 A lining hose traction head for trenchless repair includes a first connection end 1 fixedly mounted on one end of an extra-long pipe, a second connection end 2 fixedly mounted on both ends of the lining hose, and a traction end 7. Figure 6 The first connecting end 1 is assembled and connected with the second connecting end 2, and the pulling end 7 and the lining hose flexibly penetrate the first connecting end 1 and extend to the other end of the super-long tube: First, the internal threaded connector 3 is fixedly installed on the other end of the first connecting end 1 away from the extra-long tube. Figure 4 With attached Figure 5 The inner wall surface of the internal thread joint 3 is provided with an internal thread.

[0023] Secondly, the sealing sleeve 4 is fixedly installed on the second connecting end 2. Figure 5 The openings at both ends of the sealing sleeve 4 are smaller than its own aperture, so as to facilitate the movable limiting of the inner core tube 501.

[0024] Again, the inner connecting tube 5 is movably arranged in the sealing sleeve 4 and the second connecting end 2, and the inner connecting tube 5 is used to assemble and connect the sealing sleeve 4 and the internal thread joint 3. The inner connecting tube 5 includes an inner core tube 501, an external thread joint 502 and an outer sleeve 503, a sealing rubber ring 504, a limiting flange 505, a first spring 506 and a booster flange 507 corresponding to the sealing rubber ring 504, a synchronous rotating disk 508, a guide rod 509 and a second spring 510, and a buffer support tooling 511: The inner core tube 501 is slidably mounted in the second connecting end 2 and the sealing sleeve 4. The inner core tube 501 can be adjusted in a linear reciprocating telescopic manner in the second connecting end 2 and the sealing sleeve 4 according to assembly and buffering requirements to avoid squeezing or pulling the extra-long tube, the lining hose, the first connecting end 1 and the second connecting end 2 toward each other.

[0025] The external threaded joint 502 is fixedly mounted on the outer end of the inner core tube 501 located on the sealing sleeve 4, and the external threaded joint 502 is fixedly sleeved with the other end of the liner hose away from the pulling end 7, and the external threaded joint 502 corresponds to the internal threaded joint 3, and the outer sleeve 503 is fixedly mounted on the outer end of the inner core tube 501 located on the sealing sleeve 4, and the external threaded joint 502 is located in the outer sleeve 503. For details, please refer to the attached manual. Figure 5 The outer wall of the external threaded joint 502 is provided with an external thread that matches the internal thread, so that the internal connecting pipe 5 and the first connecting end 1 are preliminarily threadedly connected.

[0026] The sealing rubber ring 504 is fixedly mounted on the inner end of the inner core tube 501 located inside the second connecting end head 2 , and the sealing rubber ring 504 movably abuts against the inner wall of the second connecting end head 2 .

[0027] The limiting flange 505 is fixedly sleeved on the middle end of the inner core tube 501 located in the sealing sleeve 4 , and the limiting flange 505 is sleeved in the sealing sleeve 4 .

[0028] The first spring 506 is welded to one end of the second connection end 2 connected to the sealing sleeve 4, and the boost flange 507 is fixedly connected to the first spring 506, and the boost flange 507 is movably sleeved on the inner core tube 501. Fig.12 With attached Fig.13 A wedge-shaped ring groove is provided in the sealing rubber ring 504, and the boost flange 507 is a wedge-shaped ring rail corresponding to the wedge-shaped ring groove. During the process of screwing the inner core tube 501, the sealing rubber ring 504 is pushed toward the side of the boost flange 507, so that the wedge-shaped ring rail is embedded in the wedge-shaped ring groove, further supporting the sealing rubber ring 504, so that the fully expanded sealing rubber ring 504 is tightly against the inside of the second connecting end 2.

[0029] The synchronous rotating disk 508 is rotatably installed in one end of the sealing sleeve 4 away from the second connecting terminal 2 , and the synchronous rotating disk 508 is movably sleeved on the inner core tube 501 .

[0030] The guide rod 509 is integrally connected to the synchronous rotating disk 508 , and the guide rod 509 slides through the limiting flange 505 , the second spring 510 is welded between the limiting flange 505 and the synchronous rotating disk 508 , and the second spring 510 is sleeved on the guide rod 509 .

[0031] The buffer support fixture 511 is disposed on the outer end of the inner core tube 501 extending out of the sealing sleeve 4 , and the buffer support fixture 511 is located between the sealing sleeve 4 and the outer sleeve 503 .

[0032] Further description: The buffer support tooling 511 includes a movable ring 51101 and a rubber ring 51105, a first support rod 51102 and a second support rod 51103, a connecting block 51104 fixedly connected to the rubber ring 51105, a convex telescopic rod 51106 and a third spring 51107, and a third support rod 51108: The movable sleeve 51101 is slidably mounted on the inner core tube 501, and the rubber ring 51105 is concentrically mounted on the movable sleeve 51101. It is worth noting that the rubber ring 51105 is made of rubber material with better deformation performance. The stressed rubber ring 51105 can be deformed according to the expansion and contraction degree of the inner core tube 501, thereby ensuring that the part of the inner core tube 501 extending outside the sealing sleeve 4 is fully mounted.

[0033] The pin shaft of the first support rod 51102 is installed on the movable ring 51101 , and the pin shaft of the second support rod 51103 is connected to one end of the first support rod 51102 away from the movable ring 51101 .

[0034] The connecting block 51104 is pin-mounted on an end of the second support rod 51103 away from the first support rod 51102 .

[0035] Please refer to the instruction manual for details Fig.15 The convex telescopic rod 51106 is slidably mounted in the movable ring 51101, the third spring 51107 is welded between the movable ring 51101 and the convex telescopic rod 51106, and the third spring 51107 is mounted on the convex telescopic rod 51106. Under the elastic force of the third spring 51107, the convex telescopic rod 51106 extends outward and supports the first support rod 51102 and the second support rod 51103 through the third support rod 51108, so that the rubber ring 51105 always remains in an expanded state.

[0036] Finally, the reinforcing member 6 is installed on the inner connecting tube 5 and the first connecting end 1, and the reinforcing member 6 is used to reinforce the connection between the first connecting end 1 and the inner connecting tube 5. The reinforcing member 6 includes a limited long groove 601, a fourth spring 602 and a limited slider 603 located in the limited long groove 601 and welded, a limit rod 604 and a limit ring 607, a synchronous ring 610, an adapted limit slot 611 and a limit block 612, and a support pulley 613: The limiting long groove 601 is opened on the outer sleeve 503, the fourth spring 602 is welded in the limiting long groove 601, the limiting slider 603 is slidably installed in the limiting long groove 601, and the limiting slider 603 elastically supported by the fourth spring 602 in the limiting long groove 601 can move linearly back and forth. The limiting slider 603 at different positions provides support for the limiting rod 604 by pulling the support rod 605.

[0037] The pin of the limit rod 604 is installed on the outer sleeve 503, and the limit rod 604 is movably supported by the limit slider 603, and the limit ring 607 is movably sleeved on the limit rod 604. For details, please refer to the attached manual. Fig.16 With attached Fig.17 A limiting inclined groove 606 for fitting a limiting ring 607 is provided in the limiting rod 604, and the limiting inclined groove 606 is composed of a plane cut and an inclined cut. A limiting opening 608 corresponding to the inclined cut in the limiting inclined groove 606 is provided on the limiting ring 607, and the limiting opening 608 is a funnel-shaped structure. When the limiting ring 607 moves to the vertical position of the inclined cut of the limiting inclined groove 606, the limiting ring 607 squeezes the limiting rod 604 through the limiting opening 608 and the limiting inclined groove 606, and then the limiting ring 607 and the limiting rod 604 are fixedly connected to limit and fix the limiting rod 604 in a horizontal state.

[0038] The synchronization ring 610 is rotatably mounted on the first connection end 1 . It is worth noting that because the outer sleeve 503 needs to be driven to spirally move in the internal threaded joint 3 , the limiting groove 611 can be made to correspond to the limiting block 612 by rotating the synchronization ring 610 .

[0039] The limiting slot 611 is formed on the synchronizing ring 610 , and the limiting block 612 is integrally connected to the limiting rod 604 .

[0040] The support pulley 613 is rotatably mounted on the limit rod 604. Fig.17 By installing a support pulley 613 on the limit rod 604 in the same direction as the first connecting terminal 1 and the second connecting terminal 2, the lining hose, the first connecting terminal 1 and the second connecting terminal 2 can be moved with the help of the support pulley 613 when force is applied, thereby avoiding direct friction between the lining hose, the first connecting terminal 1 and the second connecting terminal 2 and the placement and installation position.

[0041] The internal thread joint 3 is located on one end of the first connection end 1 facing the second connection end 2 , and the sealing sleeve 4 is located on one end of the second connection end 2 facing the first connection end 1 .

[0042] The third support rod 51108 is pin-connected to the first support rod 51102 and the convex telescopic rod 51106 . The convex telescopic rod 51106 telescopically moves linearly in the movable ring 51101 , and the two sections of the first support rod 51102 are symmetrically supported by the third support rod 51108 .

[0043] Please refer to the instruction manual for details Fig.15 The first support rod 51102, the second support rod 51103, the connecting block 51104, the convex telescopic rod 51106, the third spring 51107, and the third support rod 51108 are circumferentially and equidistantly distributed one by one between the movable ring 51101 and the rubber ring 51105, ensuring that the rubber ring 51105 always forms a circular ring around the inner core tube 501, providing all-round elastic support for the inner core tube 501.

[0044] The sealing sleeve 4 and the outer sleeve 503 are both provided with grooves for the movable rubber ring 51105, so that the rubber ring 51105 is always in dynamic contact with the sealing sleeve 4 and the outer sleeve 503, avoiding a gap therebetween that directly contacts the inner core tube 501.

[0045] A traction support rod 605 is pin-connected between the limiting slider 603 and the limiting rod 604 .

[0046] A limiting counterbore 609 corresponding to the limiting inclined groove 606 is formed in the limiting circular ring 607, and a locking screw for fixing the limiting rod 604 and the limiting circular ring 607 is installed by threading in the limiting counterbore 609. The locking screw is tightened through the limiting counterbore 609, and the limiting circular ring 607 is used to fix the angle of the horizontal limiting rod 604.

[0047] For specific reference, see the attached Figure 1 - attached Figure 3 The pulling end 7 includes a first clamping plate 701 and a second clamping plate 702 for fixedly abutting against the inner lining hose, a first locking device 703 and a second locking device 704, a locking bolt 705, a synchronous chain 706, and an anti - detachment through - hole 707: The first clamping plate 701 and the second clamping plate 702 are fixedly sleeved on the other end of the inner lining hose away from the external thread joint 502. Both the first clamping plate 701 and the second clamping plate 702 are in a C - shaped structure, and one end of the inner lining pipe is curled or folded and embedded in the first clamping plate 701 and the second clamping plate 702; The first locking device 703 and the second locking device 704 are respectively fixedly installed on the first clamping plate 701 and the second clamping plate 702; Two locking bolts 705 are respectively installed in the first locking device 703 and the second locking device 704. The contact area with the inner lining hose is increased through the first clamping plate 701 and the second clamping plate 702, and at the same time, the fixation is strengthened through the locking bolts 705, which is convenient for strongly pulling the inner lining hose; The synchronous chain 706 is fixedly connected between the first locking device 703 and the second locking device 704. The synchronous chain 706 adjusts the tightness according to the distance between the first clamping plate 701 and the second clamping plate 702, realizing double - fixed connection of the inner - through hose; The anti - detachment through - hole 707 is formed in the first clamping plate 701, and a traction device with a traction function is connected through the anti - detachment through - hole 707, which is not limited to a tractor or a winch, so as to pull the inner lining hose from one end to the other end of the ultra - long pipe, enabling the co - positional sleeving of the inner lining hose in the ultra - long pipe.

[0048] It should be noted that the specific model specifications of the ultra - long pipe and the inner lining hose need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in the field, so it will not be elaborated here.

[0049] The functional principle of the present invention can be elaborated through the following operation methods: One end of the inner lining hose is fixedly sleeved in the external thread joint 502, and then the pulling end 7 is fixed on the other end of the inner lining hose, that is, the inner lining hose is fixed by using the first clamping plate 701 and the second clamping plate 702; An external traction device is connected through the anti-dropping through hole 707, and the lining hose is introduced into one end of the super-long tube installed with the first connecting end 1 through the pulling end 7, and the traction device is controlled to start until the pulling end 7 drives the lining hose to move to the outside of the other end of the super-long tube, at which time the first connecting end 1 corresponds to the second connecting end 2; The inner connecting tube 5 is pulled outward from the sealing sleeve 4 through the outer sleeve 503, and the inner connecting tube 5 is driven to move toward the first connecting end 1 through the outer sleeve 503; The inner core tube 501 drives the limiting flange 505 to move along the guide rod 509 to press the second spring 510, and the sealing rubber ring 504 presses the boosting flange 507, so that the wedge-shaped ring rail is embedded in the wedge-shaped ring groove; The outer sleeve 503 drives the external threaded joint 502 to be threadedly connected with the internal threaded joint 3 through the inner core tube 501 until the external threaded joint 502 contacts the first connection end 1, the external threaded joint 502 is completely located in the internal threaded joint 3, and the outer sleeve 503 is completely sleeved on the internal threaded joint 3; The limiting ring 607 is pushed in the limiting inclined groove 606, and the limiting ring 607 applies pressure to the limiting rod 604 through the limiting opening 608 and the limiting inclined groove 606. The limiting rod 604 squeezes the fourth spring 602 by pulling the support rod 605, so that the limiting rod 604 tending to be horizontal drives the limiting block 612 to be embedded in the limiting groove 611, and the locking screw is tightened in the limiting counterbore 609 to fix the limiting ring 607 and the limiting rod 604; When the first connection end 1 and the second connection end 2 are horizontally moved by force, the internal connection pipe 5 drives the first connection end 1 to move inwardly toward the sealing sleeve 4 by driving the internal threaded joint 3, so as to provide buffer support protection for the first connection end 1 and the second connection end 2; When the inner core tube 501 is subjected to vertical force, the rubber ring 51105 applies pressure to the second support rod 51103 through the connecting block 51104, the second support rod 51103 applies pressure to the first support rod 51102, and the first support rod 51102 applies pressure to the convex telescopic rod 51106 through the third support rod 51108, and under the action of the elastic force of the third spring 51107, the rubber ring 51105 is provided with reset support.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lining hose pulling head for trenchless repair, comprising a first connecting end (1) fixedly mounted on one end of an extra-long tube, a second connecting end (2) fixedly mounted on both ends of the lining hose, and a pulling end (7), the first connecting end (1) and the second connecting end (2) being assembled and connected, the pulling end (7) and the lining hose movably passing through the first connecting end (1) and extending to the other end of the extra-long tube, characterized in that: Also includes: An internal thread joint (3), the internal thread joint (3) being fixedly mounted on the other end of the first connection end (1) away from the extra-long tube; A sealing sleeve (4), wherein the sealing sleeve (4) is fixedly mounted on the second connecting end (2); An internal connecting pipe (5), the internal connecting pipe (5) being movably arranged in the sealing sleeve (4) and the second connecting end (2), and the internal connecting pipe (5) being used for assembling and connecting the sealing sleeve (4) and the internal threaded joint (3); A reinforcing member (6), wherein the reinforcing member (6) is installed on the inner connecting tube (5) and the first connecting end (1), and the reinforcing member (6) is used to reinforce the connection between the first connecting end (1) and the inner connecting tube (5).

2. The lining hose traction head for trenchless repair according to claim 1, characterized in that: The internal thread joint (3) is located on one end of the first connection end (1) facing the second connection end (2), and the sealing sleeve (4) is located on one end of the second connection end (2) facing the first connection end (1).

3. The lining hose traction head for trenchless repair according to claim 1, characterized in that: The inner connecting pipe (5) comprises: An inner core tube (501), wherein the inner core tube (501) is slidably sleeved in the second connecting end (2) and the sealing sleeve (4); An external threaded joint (502) and an outer sleeve (503), wherein the external threaded joint (502) is fixedly mounted on the outer end of the inner core tube (501) located on the sealing sleeve (4), and the external threaded joint (502) is fixedly sleeved with the other end of the lining hose away from the pulling end (7), and the external threaded joint (502) corresponds to the internal threaded joint (3), and the outer sleeve (503) is fixedly mounted on the outer end of the inner core tube (501) located on the sealing sleeve (4), and the external threaded joint (502) is located in the outer sleeve (503); A sealing rubber ring (504), the sealing rubber ring (504) being fixedly mounted on the inner end of the inner core tube (501) located inside the second connecting end (2); A limiting flange (505), the limiting flange (505) being fixedly sleeved on the middle end of the inner core tube (501) located inside the sealing sleeve (4); A first spring (506) and a pressure-boosting flange (507) corresponding to the sealing rubber ring (504), wherein the first spring (506) is welded inside one end of the second connecting end (2) connected to the sealing sleeve (4), and the pressure-boosting flange (507) is fixedly connected to the first spring (506), and the pressure-boosting flange (507) is movably sleeved on the inner core tube (501); A synchronous rotating disk (508), the synchronous rotating disk (508) being rotatably mounted in an end of the sealing sleeve (4) away from the second connecting end (2), and the synchronous rotating disk (508) being movably sleeved on the inner core tube (501); A guide rod (509) and a second spring (510), wherein the guide rod (509) is integrally connected to the synchronous rotating disk (508), and the guide rod (509) slides through the limiting flange (505), the second spring (510) is welded between the limiting flange (505) and the synchronous rotating disk (508), and the second spring (510) is sleeved on the guide rod (509); A buffer support tool (511), wherein the buffer support tool (511) is arranged on the outer end of the inner core tube (501) extending outside the sealing sleeve (4), and the buffer support tool (511) is located between the sealing sleeve (4) and the outer sleeve (503).

4. The lining hose traction head for trenchless repair according to claim 3 is characterized in that: The sealing rubber ring (504) is provided with a wedge-shaped annular groove, and the booster flange (507) is a wedge-shaped annular rail corresponding to the wedge-shaped annular groove.

5. The lining hose traction head for trenchless repair according to claim 3, characterized in that: The buffer support tool (511) comprises: A movable sleeve (51101) and a rubber ring (51105), wherein the movable sleeve (51101) is slidably sleeved on the inner core tube (501), and the rubber ring (51105) is concentrically sleeved on the movable sleeve (51101); A first support rod (51102) and a second support rod (51103), wherein the pin of the first support rod (51102) is installed on the movable sleeve (51101), and the pin of the second support rod (51103) is connected to an end of the first support rod (51102) away from the movable sleeve (51101); A connecting block (51104) fixedly connected to the rubber ring (51105), wherein the connecting block (51104) is pin-mounted on an end of the second support rod (51103) away from the first support rod (51102); A convex telescopic rod (51106) and a third spring (51107), wherein the convex telescopic rod (51106) is slidably mounted in the movable ring (51101), the third spring (51107) is welded between the movable ring (51101) and the convex telescopic rod (51106), and the third spring (51107) is mounted on the convex telescopic rod (51106); A third support rod (51108), wherein the third support rod (51108) is pin-connected to the first support rod (51102) and the convex telescopic rod (51106).

6. The lining hose traction head for trenchless repair according to claim 5, characterized in that: The first support rod (51102), the second support rod (51103), the connecting block (51104), the convex telescopic rod (51106), the third spring (51107), and the third support rod (51108) are equidistantly distributed in the circumferential direction between the movable sleeve ring (51101) and the rubber ring (51105) in a one-to-one correspondence; The sealing sleeve (4) and the outer sleeve (503) are both provided with a slot for a movable rubber ring (51105).

7. The lining hose traction head for trenchless repair according to claim 6, characterized in that: The reinforcement member (6) comprises: A limiting long groove (601), a fourth spring (602) located in the limiting long groove (601) and welded therein, and a limiting slider (603), wherein the limiting long groove (601) is formed on the outer sleeve (503), the fourth spring (602) is welded in the limiting long groove (601), and the limiting slider (603) is slidably installed in the limiting long groove (601); A limit rod (604) and a limit ring (607), wherein the limit rod (604) is pin-mounted on the outer sleeve (503), and the limit rod (604) is movably supported by a limit slider (603), and the limit ring (607) is movably sleeved on the limit rod (604); A synchronous ring (610), wherein the synchronous ring (610) is rotatably mounted on the first connecting end (1); An adapted limit slot (611) and a limit block (612), wherein the limit slot (611) is provided on the synchronous ring (610), and the limit block (612) is integrally connected to the limit rod (604); A supporting pulley (613), wherein the supporting pulley (613) is rotatably mounted on the limiting rod (604).

8. The lining hose traction head for trenchless repair according to claim 7, characterized in that: A traction support rod (605) is pin-connected between the limiting slider (603) and the limiting rod (604); The limiting rod (604) is provided with a limiting inclined groove (606) for fitting the limiting circular ring (607), the limiting inclined groove (606) is composed of a plane cut and an inclined cut, the limiting circular ring (607) is provided with a limiting opening (608) corresponding to the limiting inclined groove (606), and the limiting opening (608) is a funnel-shaped structure.

9. The lining hose traction head for trenchless repair according to claim 8, characterized in that: The limiting circular ring (607) is provided with a limiting countersunk hole (609) corresponding to the inclined cut in the limiting inclined groove (606), and a locking screw for fixing the limiting rod (604) and the limiting circular ring (607) is threadedly installed in the limiting countersunk hole (609).

10. The lining hose traction head for trenchless repair according to claim 9, characterized in that: The pulling end (7) comprises: A first clamping plate (701) and a second clamping plate (702) fixedly abutting against the lining hose, wherein the first clamping plate (701) and the second clamping plate (702) are fixedly sleeved on the other end of the lining hose away from the external threaded joint (502); A first locker (703) and a second locker (704), wherein the first locker (703) and the second locker (704) are fixedly mounted on the first clamping plate (701) and the second clamping plate (702) respectively; Locking bolts (705), wherein the two locking bolts (705) are respectively installed in the first locking device (703) and the second locking device (704); A synchronous chain (706), wherein the synchronous chain (706) is fixedly connected between the first locking device (703) and the second locking device (704); An anti-slip through hole (707), wherein the anti-slip through hole (707) is opened in the first clamping plate (701).

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