In-situ repair equipment for water supply pipeline without water interruption

Abstract

The present invention belongs to the technical field of water pipe repair, and in particular, is an in-situ repair device for a water supply pipeline without water cut-off, comprising a repair box, both sides of which are provided with clamping mechanisms, the two clamping mechanisms are used to clamp the water pipe body and fix the repair box on the water pipe body, the inner side of the repair box is provided with a cutting mechanism for cutting off the water pipe body, and the repair box is detachably installed with a replacement mechanism for replacing the cut-off part of the water pipe body and two locking mechanisms, the two ends of the replacement mechanism are used to be inserted into the port of the cut-off water pipe body. The present invention can cut off the part of the water pipe body where a leak occurs through the cooperation of the repair box and the cutting mechanism, and then replace the cut-off part of the water pipe body through the cooperation of the replacement mechanism and the locking mechanism, and in the above process, the two reserved parts can be kept in a connected state through the repair box, so the whole operation process does not need to stop the water supply, and can ensure the normal water use of the user.

Description

Technical Field

[0001] The present invention relates to the technical field of water pipe repair, and in particular to an in-situ repair device for a water supply pipeline that does not stop water. Background Art

[0002] Most of the water supply pipes in rural areas are buried underground. When the water supply pipes are damaged by mechanical damage, wear and tear, manufacturing defects, corrosion, etc., it is necessary to dig up the soil layer above the water supply pipes to expose the damaged parts of the water supply pipes, and then the staff will take appropriate methods to repair them.

[0003] Most of the existing water supply pipes are made of PVC pipes. When they are damaged, it is often necessary to patch the damaged part of the water supply pipe with PVC pipes of the same type for repair. However, this method requires suspending the water supply of the pipe during the repair process, which has a great impact on the normal life of residents within the construction range. Therefore, an in-situ repair device for water supply pipes without stopping water is proposed. Summary of the invention

[0004] In order to solve the shortcomings in the prior art, the present invention proposes an in-situ repair device for a water supply pipeline without water shutoff.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an in-situ repair device for a water supply pipeline without water shutoff, comprising a repair box, both sides of the repair box are provided with clamping mechanisms, the two clamping mechanisms are used to clamp a water pipe body and fix the repair box on the water pipe body, the inner side of the repair box is provided with a cutting mechanism for cutting off the water pipe body, a replacement mechanism for replacing the cut-off part of the water pipe body and two locking mechanisms are detachably installed in the repair box, the two ends of the replacement mechanism are used to be inserted into the port of the cut-off water pipe body, and the two locking mechanisms are used to fixedly connect the port of the water pipe body with the replacement mechanism.

[0006] Preferably, the repair box includes box body 1 and box body 2, and the box body 1 and box body 2 are hinged by two hinges, and the box body 1 and box body 2 are provided with two buckles on the side away from the two hinges. The cutting mechanism includes two movable plates slidably mounted on the inner walls of both sides of the box body, and the tops of the two movable plates are detachably mounted with cutting plates, and four guide rods distributed in a rectangular shape are fixedly mounted between the two movable plates, and the same fixed plate and two push plates are slidably mounted on two adjacent guide rods, and the fixed plate is located between the two push plates, and a double-rod cylinder is fixedly mounted on the fixed plate in a through-type manner, and the piston rod ends at both ends of the double-rod cylinder are respectively fixedly connected to the corresponding push plates.

[0007] Preferably, a semicircular opening three and a semicircular opening four are respectively provided on the side where the movable plate and the cutting plate are close to each other, two card slots are provided on the top of the movable plate, and two card blocks matching the two card slots are fixedly installed on the bottom of the cutting plate. A semicircular cutting edge is provided on the top of the cutting mechanism, and a water hole coaxial with the semicircular cutting edge is also provided on the cutting plate. A connecting plate is fixedly installed between the two movable plates, and the cutting mechanism also includes two single-rod cylinders that pass through the bottom of the box body and are fixedly connected to the bottom of the box body, and the piston rod ends of the two single-rod cylinders are fixedly connected to the bottom of the connecting plate.

[0008] Preferably, the replacement mechanism includes two conical cylinders, a telescopic tube is fixedly installed between the two conical cylinders, flanges are fixedly sleeved on the two conical cylinders, two positioning grooves are provided on the side of the flanges, two positioning bars are fixedly installed between the two movable plates, and the two positioning bars are fixedly installed on the top of the connecting plate.

[0009] Preferably, a semicircular opening 1 is provided on both sides of the box body 1, and a semicircular opening 2 is provided on both sides of the box body 2, the two semicircular openings 1 and the two semicircular openings 2 are coaxially arranged, and two circular grooves are provided on the sides of the semicircular opening 1 and the semicircular opening 2 close to each other, and the two adjacent circular grooves are coaxially arranged, and the locking mechanism includes two semicircular flange plates, two connecting ears are fixedly installed on the outer side of the semicircular flange plates, a conical boss is provided on the outer side of the semicircular flange plates, a conical groove is provided on the inner side wall of the semicircular flange plates, a clamping strip is fixedly installed on the inner wall of the semicircular flange plates, and a semicircular pin is fixedly installed on one side of the connecting ear.

[0010] Preferably, a valve is fixedly installed through the top of the second box body.

[0011] Preferably, the clamping mechanism includes a rectangular plate 1 fixedly connected to the outer side of a box body 1, two rectangular seats and two rectangular plates 2 are fixedly installed on the side of the rectangular plate 1 away from the box body 1, the same screw rod is rotatably installed on the two rectangular seats, two sliders are threadedly sleeved on the screw rod, the two sliders are slidably installed between the two rectangular plates 2, the two sliders are fixedly installed with clamping arms on the side away from the rectangular plate 1, and two angle plates are fixedly installed on the side of the two clamping arms close to the box body 1, the two angle plates are symmetrically arranged, and a handwheel is fixedly installed on one end of the screw rod.

[0012] Preferably, the screw rod is provided with two sections of threads with opposite rotation directions, and the two sliders are respectively adapted to the threads with corresponding rotation directions.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention can cut off the part of the water pipe body where the leak occurs through the cooperation of the repair box and the cutting mechanism, and then replace the cut-off part of the water pipe body through the cooperation of the replacement mechanism and the locking mechanism. In addition, in the above process, the two retained parts can be kept in a connected state at all times through the repair box, so the whole operation process does not require water outage, and the normal water use of users can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an in-situ repair device for a water supply pipeline without water shutoff proposed by the present invention;

[0016] Figure 2 A partial side cross-sectional view of an in-situ repair device for a water supply pipeline without water shutoff proposed by the present invention;

[0017] Figure 3 It is a side sectional view of a cut-off mechanism in an in-situ repair device for a water supply pipeline without water shut-off proposed by the present invention;

[0018] Figure 4 This is a structural schematic diagram of a replacement mechanism in an in-situ repair device for a water supply pipeline without water shutoff proposed by the present invention;

[0019] Figure 5 This is a structural schematic diagram of a locking mechanism in an in-situ repair device for a water supply pipeline without water shutoff proposed by the present invention;

[0020] Figure 6 A schematic diagram of the partial structure of a repair box in an in-situ repair device for a water supply pipeline without water shutoff proposed by the present invention;

[0021] Figure 7 This is a structural schematic diagram of a clamping mechanism in an in-situ repair device for a water supply pipeline without water shutoff proposed by the present invention;

[0022] Figure 8 A schematic diagram of the local structure of a water pipe main body before repair in an in-situ repair device for a water supply pipe without water shutoff proposed by the present invention;

[0023] Fig. 9 This is a schematic diagram of the local structure of a water pipe main body after repair in an in-situ repair device for a water supply pipeline without water shutoff proposed by the present invention.

[0024] In the figure: 1, repair box; 11, box body 1; 111, semicircular opening 1; 12, box body 2; 121, semicircular opening 2; 13, valve; 14, hinge; 15, buckle; 16, round groove; 2, clamping mechanism; 21, rectangular plate 1; 22, rectangular seat; 23, screw rod; 24, slider; 25, rectangular plate 2; 26, clamping arm; 27, angle plate; 28, hand wheel; 3, cutting mechanism; 31, moving plate; 311, semicircular opening 3; 312, slot; 32, cutting plate; 321, semicircular cutting edge; 322, water hole; 323, semicircular opening 4; 324, block; 33, guide rod; 34, fixed Fixed plate; 35, double-rod cylinder; 351, spiral oil pipe; 36, push plate; 37, connecting plate; 38, positioning strip; 39, single-rod cylinder; 4, replacement mechanism; 41, tapered cylinder; 42, telescopic tube; 43, flange; 44, positioning groove; 5, locking mechanism; 51, semicircular flange; 52, tapered boss; 53, tapered groove; 54, clamping strip; 55, connecting ear; 56, semicircular pin; 6, water pipe body; 61, reserved part; 62, cut-off part; 63, leak point; 7, fixing mechanism one; 71, bolt one; 72, nut one; 8, fixing mechanism two; 81, bolt two; 82, nut two. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Please refer to Figure 1-Figure 9 The present invention provides a technical solution: an in-situ repair device for a water supply pipeline without water stopping, which is used to cut off a water pipe main body 6, wherein the cut water pipe main body 6 is divided into a cut-off portion 62 and two reserved portions 61, and a leak point 63 is located on the cut-off portion 62, comprising a repair box 1, both sides of the repair box 1 are provided with clamping mechanisms 2, the two clamping mechanisms 2 are used to clamp the water pipe main body 6 and fix the repair box 1 on the water pipe main body 6, the inner side of the repair box 1 is provided with a cutting mechanism 3 for cutting off the water pipe main body 6, a replacement mechanism 4 for replacing the cut-off portion of the water pipe main body 6 and two locking mechanisms 5 are detachably installed in the repair box 1, the two ends of the replacement mechanism 4 are used to be inserted into the ports of the reserved portion 61 close to each other, and the two locking mechanisms 5 are used to fix the ports of the two reserved portions 61 to the replacement mechanism 4.

[0027] The repair box 1 includes a box body 11 and a box body 12, which are hinged by two hinges 14. Two buckles 15 are provided on the side of the box body 11 and the box body 12 away from the two hinges 14. The cutting mechanism 3 includes two movable plates 31 slidably mounted on the inner walls of both sides of the box body 11, and the tops of the two movable plates 31 are detachably mounted with cutting plates 32. Four guide rods 33 distributed in a rectangular shape are fixedly mounted between the two movable plates 31. The same fixed plate 34 and two push plates 36 are slidably mounted on two adjacent guide rods 33. The fixed plate 34 is located between the two push plates 36. A double-rod cylinder 35 is fixedly mounted through the fixed plate 34, and the piston rod ends at both ends of the double-rod cylinder 35 are respectively fixedly connected to the corresponding push plates 36.

[0028] Furthermore, the double-rod cylinder 35 is provided with a spiral oil pipe 351, which passes through the bottom of the box body 11 and is fixedly connected to the box body 11, ensuring that the oil can be normally supplied through the spiral oil pipe 351 during the up and down movement of the double-rod cylinder 35.

[0029] A semicircular opening three 311 and a semicircular opening four 323 are respectively provided on the side where the movable plate 31 and the cutting plate 32 are close to each other. Two card slots 312 are provided on the top of the movable plate 31. Two card blocks 324 matching the two card slots 312 are fixedly installed on the bottom of the cutting plate 32. A semicircular cutting edge 321 is provided on the top of the cutting mechanism 3. A water hole 322 coaxial with the semicircular cutting edge 321 is also provided on the cutting plate 32. A connecting plate 37 is fixedly installed between the two movable plates 31. The cutting mechanism 3 also includes two single-rod cylinders 39 that penetrate through the bottom of the box body 11 and are fixedly connected to the bottom of the box body 11. The piston rod ends of the two single-rod cylinders 39 are fixedly connected to the bottom of the connecting plate 37.

[0030] Furthermore, by providing the water through hole 322 , it is ensured that the semicircular cutting edge 321 does not block the port of the reserved portion 61 during the process of cutting off the water pipe body 6 , thereby making the two reserved portions 61 in a connected state.

[0031] The replacement mechanism 4 includes two conical cylinders 41, a telescopic tube 42 is fixedly installed between the two conical cylinders 41, a flange 43 is fixedly sleeved on the two conical cylinders 41, and two positioning grooves 44 are provided on the side of the flange 43. Two positioning bars 38 are fixedly installed between the two movable plates 31, and the two positioning bars 38 are fixedly installed on the top of the connecting plate 37.

[0032] Furthermore, when the conical tube 41 is inserted into the retaining portion 61, the conical boss 52 is provided to prevent the semicircular flange plate 51 from being pushed out of the semicircular opening 111 or the semicircular opening 2 121 by the conical tube 41, and the conical groove 53 is provided to cooperate with the conical tube 41, so that the locking mechanism 5 and the conical tube 41 can tightly clamp the end of the retaining portion 61.

[0033] A semicircular opening 111 is provided on both sides of the box body 11, and a semicircular opening 2 121 is provided on both sides of the box body 2 12. The two semicircular openings 111 and the two semicircular openings 121 are coaxially arranged. Two circular grooves 16 are provided on the sides where the semicircular openings 111 and the semicircular openings 2 121 are close to each other, and the two adjacent circular grooves 16 are coaxially arranged. The locking mechanism 5 includes two semicircular flange plates 51, and two connecting ears 55 are fixedly installed on the outer side of the semicircular flange plate 51. A conical boss 52 is provided on the outer side of the semicircular flange plate 51, and a conical groove 53 is provided on the inner side wall of the semicircular flange plate 51. A clamping strip 54 is fixedly installed on the inner wall of the semicircular flange plate 51, and a semicircular pin 56 is fixedly installed on one side of the connecting ear 55.

[0034] Furthermore, the two positioning grooves 44 cooperate with the two positioning strips 38 and the two semicircular pins 56 cooperate with the two circular grooves 16, so that when the semicircular flange plate 51 is coaxial with the flange 43, the various mounting holes thereon will remain coaxial with the various mounting holes on the flange 43;

[0035] The flange 43 and the two semicircular flange plates 51 can be fixedly connected by a plurality of fixing mechanisms 8, the fixing mechanisms 8 comprising threaded bolts 81 and nuts 82, the bolts 81 passing through the mounting holes on the semicircular flange plates 51 and being movably connected to the inner wall of the mounting holes, and the bolts 81 passing through the mounting holes on the flange 43 and being threadedly connected to the inner wall of the mounting holes;

[0036] The two semicircular flange plates 51 are fixedly connected by two fixing mechanisms 7. The fixing mechanism 7 includes a threaded bolt 71 and a nut 72. The bolt 71 passes through the mounting holes on the two connecting ears 55 and is movably connected to the inner walls of the two mounting holes.

[0037] A valve 13 is fixedly installed through the top of the second box body 12 .

[0038] The clamping mechanism 2 includes a rectangular plate 21 fixedly connected to the outer side of the box body 11, two rectangular seats 22 and two rectangular plates 25 are fixedly installed on the side of the rectangular plate 21 away from the box body 11, the same screw rod 23 is rotatably installed on the two rectangular seats 22, two sliders 24 are threadedly sleeved on the screw rod 23, and the two sliders 24 are slidably installed between the two rectangular plates 25, and the two sliders 24 are fixedly installed with clamping arms 26 on the side away from the rectangular plate 21, and the two clamping arms 26 are fixedly installed with two angle plates 27 on the side close to the box body 11. The two angle plates 27 are symmetrically arranged, and a handwheel 28 is fixedly installed on one end of the screw rod 23.

[0039] The screw rod 23 is provided with two sections of threads with opposite rotation directions, and the two sliders 24 are respectively matched with the threads with corresponding rotation directions.

[0040] Furthermore, when the water pipe body 6 is between the two angle plates 27, turning the hand wheel 28 to drive the screw rod 23 to rotate can drive the two sliders 24 to approach each other, and the two sliders 24 then drive the two angle plates 27 to approach each other through the two clamping arms 26 and clamp the water pipe body 6. Turning the hand wheel 28 in the opposite direction can cause the two angle plates 27 to loosen the water pipe body 6.

[0041] In this embodiment: when repairing the water pipe body 6, firstly, the four semicircular flange plates 51 are respectively clamped in the corresponding two semicircular openings 111 and two semicircular openings 2 121, and the four semicircular pins 56 are respectively inserted into the corresponding circular grooves 16, and then the two single-rod oil cylinders 39 are in a fully retracted state, and then the two conical cylinders 41 on the replacement mechanism 4 are inserted between the corresponding two semicircular openings 311, and the two positioning strips 38 are inserted into the corresponding positioning grooves 44, and then the two cutting plates 32 are connected with the corresponding moving plates 31;

[0042] Then, the whole device is fixed on the water pipe body 6 by two clamping mechanisms 2, and the leak point 63 is located in the box body 1 11. Then, the box body 2 12 is rotated to make the box body 1 11 and the box body 2 12 fit tightly and are fixedly connected by two buckles 15. At this time, the two semicircular flange plates 51 adjacent to the semicircular opening 1 111 and the semicircular opening 2 121 will fit tightly. Then, two sets of bolts 1 71 and nuts 1 72 are passed through the corresponding connecting ears 55 and fixed together. After the flange plate 51 is tightly fixed and connected, the two clamping strips 54 will be clamped on the outside of the water pipe body 6, so as to prevent the locking mechanism 5 from being offset on the water pipe body 6. In the process of closing the box body 11 and the box body 2 12, the valve 13 is in a normally open state. At this time, the water sprayed from the leak point 63 will be discharged from the valve 13 to ensure that the box body 11 and the box body 2 12 can be smoothly fitted. When the box body 11 and the box body 2 12 are locked and fixed by the two buckles 15, the valve 13 is closed;

[0043] Then, the two single-rod oil cylinders 39 are controlled to extend, and the two single-rod oil cylinders 39 push the two cutting plates 32 to rise through the connecting plate 37 and the two moving plates 31. During the rising process of the two cutting plates 32, the water pipe body 6 will be cut off. Figure 8 As shown, the cut-off water pipe body 6 becomes two reserved parts 61, the cut-off part is the cut-off part 62, and the leak point 63 is located on the cut-off part 62;

[0044] After the replacement mechanism 4 is coaxial with the two retaining parts 61, the two double-rod oil cylinders 35 are controlled to extend. At this time, the four push plates 36 will push the two flanges 43 on the replacement mechanism 4 away from each other. Subsequently, the two conical cylinders 41 will be respectively inserted into the two ports of the two retaining parts 61 that are close to each other. After the two flanges 43 are tightly fitted with the corresponding semicircular flange plates 51, a plurality of bolts 81 are passed through the semicircular flange plates 51 and threadedly connected to the flanges 43. At this time, the two locking mechanisms 5 and the two flanges 43 are initially fixedly connected;

[0045] Subsequently, the two single-rod cylinders 39 are controlled to shorten and drive the two movable plates 31 to move downward. At this time, the two cutting plates 32 are separated from the corresponding movable plates 31 and stay in the box body 12. Then, the valve 13 is opened to discharge the water in the box body 11 and the box body 12. Then, the two draw buckles 15 are opened to separate the box body 11 and the box body 12. Then, a nut 82 is threadedly sleeved on each bolt 81. Through the cooperation of multiple sets of bolts 81 and nuts 82, the flange 43 and the locking mechanism 5 can be tightly connected to avoid water leakage.

[0046] 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. An in-situ repair device for a water supply pipeline without water shutoff, comprising a repair box (1), characterized in that: The repair box (1) is provided with clamping mechanisms (2) on both sides, the two clamping mechanisms (2) are used to clamp the water pipe body (6) and fix the repair box (1) on the water pipe body (6), the inner side of the repair box (1) is provided with a cutting mechanism (3) for cutting off the water pipe body (6), the repair box (1) is detachably installed with a replacement mechanism (4) for replacing the cut-off part of the water pipe body (6) and two locking mechanisms (5), the two ends of the replacement mechanism (4) are used to be inserted into the port of the cut-off water pipe body (6), and the two locking mechanisms (5) are used to fix the port of the water pipe body (6) to the replacement mechanism (4); The cutting mechanism (3) comprises two movable plates (31) slidably mounted on the inner walls of both sides of the box body (11), and a cutting plate (32) is detachably mounted on the top of the two movable plates (31); The top of the cutting mechanism (3) is provided with a semicircular cutting edge (321), and the cutting plate (32) is also provided with a water hole (322) coaxial with the semicircular cutting edge (321); The moving plate (31) and the cutting plate (32) are respectively provided with a semicircular opening three (311) and a semicircular opening four (323) on one side close to each other; The replacement mechanism (4) comprises two conical cylinders (41), and a telescopic tube (42) is fixedly installed between the two conical cylinders (41); Insert the two conical cylinders (41) on the replacement mechanism (4) between the two corresponding semicircular openings (311).

2. The in-situ repair equipment for water supply pipelines without water shutoff according to claim 1, characterized in that: The repair box (1) comprises a box body 1 (11) and a box body 2 (12), wherein the box body 1 (11) and the box body 2 (12) are hingedly connected by two hinges (14), and two buckles (15) are provided on the sides of the box body 1 (11) and the box body 2 (12) away from the two hinges (14). Four guide rods (33) distributed in a rectangular shape are fixedly installed between the two movable plates (31), and the same fixed plate (34) and two push plates (36) are fixedly installed on two adjacent guide rods (33), and the fixed plate (34) is located between the two push plates (36). A double-rod oil cylinder (35) is fixedly installed through the fixed plate (34), and the piston rod ends at both ends of the double-rod oil cylinder (35) are respectively fixedly connected to the corresponding push plates (36).

3. The in-situ repair equipment for water supply pipelines without water shutoff according to claim 2, characterized in that: The top of the movable plate (31) is provided with two card slots (312), and the bottom of the cutting plate (32) is fixedly provided with two card blocks (324) adapted to the two card slots (312); A connecting plate (37) is fixedly installed between the two movable plates (31). The cutting mechanism (3) further comprises two single-rod oil cylinders (39) penetrating the bottom of the box body (11) and fixedly connected to the bottom of the box body (11). The piston rod ends of the two single-rod oil cylinders (39) are fixedly connected to the bottom of the connecting plate (37).

4. The in-situ repair equipment for water supply pipelines without water shutoff according to claim 3, characterized in that: A flange (43) is fixedly sleeved on each of the two conical cylinders (41), and two positioning grooves (44) are provided on the side of the flange (43). Two positioning bars (38) are fixedly installed between the two movable plates (31), and the two positioning bars (38) are fixedly installed on the top of the connecting plate (37).

5. The in-situ repair equipment for water supply pipelines without water shutoff according to claim 2, characterized in that: Both sides of the box body 1 (11) are provided with a semicircular opening 1 (111), and both sides of the box body 2 (12) are provided with a semicircular opening 2 (121). The two semicircular openings 1 (111) and the two semicircular openings 2 (121) are coaxially arranged. The semicircular openings 1 (111) and the semicircular openings 2 (121) are provided with two circular grooves (16) on the sides close to each other. The two adjacent circular grooves (16) are coaxially arranged. The locking mechanism (5) comprises two semicircular flange plates (51). Two connecting ears (55) are fixedly installed on the outer side of the semicircular flange plates (51). The outer side of the semicircular flange plates (51) is provided with a conical boss (52). The inner side wall of the semicircular flange plates (51) is provided with a conical groove (53). A clamping strip (54) is fixedly installed on the inner wall of the semicircular flange plates (51). A semicircular pin (56) is fixedly installed on one side of the connecting ear (55).

6. The in-situ repair equipment for water supply pipelines without water shutoff according to claim 2, characterized in that: A valve (13) is fixedly installed through the top of the second box body (12).

7. The in-situ repair equipment for water supply pipelines without water shutoff according to claim 2, characterized in that: The clamping mechanism (2) comprises a rectangular plate (21) fixedly connected to the outer side of the box body (11); two rectangular seats (22) and two rectangular plates (25) are fixedly installed on the side of the rectangular plate (21) away from the box body (11); a same screw rod (23) is rotatably installed through the two rectangular seats (22); two sliders (24) are threadedly sleeved on the screw rod (23); the two sliders (24) are slidably installed between the two rectangular plates (25); a clamping arm (26) is fixedly installed on the side of the two sliders (24) away from the rectangular plate (21); two angle plates (27) are fixedly installed on the side of the two clamping arms (26) close to the box body (11); the two angle plates (27) are symmetrically arranged; and a hand wheel (28) is fixedly installed on one end of the screw rod (23).

8. The in-situ repair equipment for water supply pipelines without water shutoff according to claim 7, characterized in that: The screw rod (23) is provided with two sections of threads with opposite rotation directions, and the two sliders (24) are respectively matched with the threads with corresponding rotation directions.

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