A water supply and drainage engineering building anti-seepage structure for construction engineering

Abstract

The present invention discloses an anti-seepage structure for water supply and drainage engineering of a construction project, comprising a connecting piece for connecting adjacent water supply and drainage pipelines, the water supply and drainage pipeline comprising a pipe end and a pipe end tail, the connecting piece comprising an internal threaded ring arranged on the pipe end and an external threaded ring arranged on the pipe end tail and used in conjunction with the internal threaded ring, a shaft sealing structure for driving the pipe end and the pipe end tail of the adjacent water supply and drainage pipelines to be sealed and connected, the shaft sealing structure comprising an inner sealing ring arranged on the pipe end tail, an inner extension groove for clamping an extension portion arranged on the pipe end tail, and an inner sealing component for driving the inner sealing ring to be plugged and fixed to the pipe end tail is arranged on the pipe end tail. The present invention realizes efficient sealing between pipelines by arranging the shaft sealing structure and by using the inner sealing ring, the external threaded ring and the internal threaded ring in conjunction, the inner sealing ring penetrates into the pipe end tail through threaded cooperation, thereby ensuring the sealing effect, avoiding medium leakage, and improving the reliability of pipeline sealing.

Description

Technical Field

[0001] The invention relates to the technical field of building anti-seepage, in particular to a building anti-seepage structure for a water supply and drainage project of a construction project. Background Art

[0002] In construction projects, water supply and drainage projects are vital infrastructure, which involve many aspects such as water supply, wastewater discharge and water quality improvement. Water supply and drainage projects are not only related to the daily life of residents, but also the basic facilities for controlling the spread of waterborne infectious diseases and environmental water pollution. They are of great significance to the development of green cities and industries.

[0003] Chinese patent (publication number: CN221743406U), the scheme specifically includes: a first threaded tube; a clamping mechanism, which is arranged at one end of the first threaded tube and connected to the first threaded tube; a clamping mechanism, which is arranged at one side of the clamping mechanism and connected to the clamping mechanism; a driving mechanism, which is arranged on the clamping mechanism and connected to the clamping mechanism; a locking mechanism, which is arranged on the driving mechanism and connected to the driving mechanism, clamps the water pipe to be connected through the clamping mechanism, and then drives the clamping mechanism to clamp the water pipe, thereby ensuring that the water pipe can be sealed and connected to the convex ring block, and then uses the locking mechanism to limit the clamping mechanism, thereby ensuring that the clamping mechanism can still tightly clamp the water pipe without motor drive, thereby ensuring the sealing of the interface and preventing leakage at the water pipe connection.

[0004] When existing water supply and drainage pipes are connected, the sealing of the joints is a key factor in whether sewage leaks. When the driving mechanism of the anti-seepage structure adopted by the above patent is used to connect adjacent pipe fittings, its motor and other structural components are difficult to disassemble after the pipes are sealed and connected. In urban drainage and sewage systems of large buildings, the sealing cost is relatively high, and when in use, there is still a risk of subsequent leakage when threaded connections are used between pipes. Especially in underground or concealed projects, leakage of pipe interfaces will not only affect the normal use function, but also pose a potential threat to the safety of the building structure. Therefore, an anti-seepage structure for water supply and drainage engineering of construction projects is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an anti-seepage structure for water supply and drainage engineering of construction projects, which has the advantages of further improving the reliability of pipeline sealing and convenient and reusable pipeline connection, and solves the problem that there is still a risk of subsequent leakage when threaded connection is used between pipelines.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water supply and drainage engineering building anti-seepage structure for a construction project, comprising a connector for connecting adjacent water supply and drainage pipes, the water supply and drainage pipes comprising a pipe end and a pipe end tail, the connector comprising an internal threaded ring arranged on the pipe end and an external threaded ring arranged on the pipe end tail and used in conjunction with the internal threaded ring, the pipe end is provided with a shaft sealing structure that drives the pipe end and the pipe end tail of the adjacent water supply and drainage pipes to be sealed and connected;

[0007] The shaft sealing structure comprises an inner sealing ring arranged on the end of the pipe mouth, an outer thread ring is integrally formed on the inner sealing ring, and an integrally formed extension portion is also provided on the side of the inner sealing ring facing the end of the pipe mouth, an inner extension groove for clamping the extension portion is provided on the end of the pipe mouth, and an inner sealing assembly for driving the inner sealing ring to be plugged and fixed to the end of the pipe mouth is provided on the end of the pipe mouth;

[0008] The internal thread ring is slidably sleeved on the end of the pipe mouth, a mounting hole for fixing the external thread ring is provided on the end of the pipe mouth, and a transverse sliding groove for horizontal sliding of the external thread ring is provided on the end of the pipe mouth, and a screw sealing component for driving the internal thread ring and the external thread ring to threadably cooperate is provided on the end of the pipe mouth.

[0009] Preferably, the inner sealing assembly comprises a pressing plate fixedly connected to the end of the pipe orifice, the pressing plate is detachably connected to a mounting seat by bolts, the mounting seat is provided with a threaded rod driven by a motor and freely rotating in a vertical direction, and the threaded rod is fixedly rotated on the mounting seat;

[0010] The threaded rod is provided with a horizontal seat that can move freely in the horizontal direction. The outer peripheral surface of the internal threaded ring is provided with an arc plate that moves synchronously with the horizontal seat. The fixed sleeve on the internal threaded ring is provided with two groups of positioning rings. The arc plate is located between the two groups of positioning rings, and the arc plate is in sliding contact with the opposite surfaces of the two groups of positioning rings.

[0011] Preferably, the inner sealing ring comprises an integrally formed end oblique portion and a middle oblique portion, a tail silicone O-ring is clamped and fixed on the outer peripheral surface of the inner sealing ring, an integrally formed clearance groove is provided on the tail of the pipe mouth, and a special-shaped rubber sealing seat is abutted and fixed on the clearance groove, a movable sealing ring is clamped and fixed on the special-shaped rubber sealing seat, and a notched metal ring is clamped on the side of the clearance groove away from the special-shaped rubber sealing seat;

[0012] The end oblique part and the middle oblique part are both in sliding contact with the notch metal ring, and a trapezoidal groove for supporting the notch metal ring is provided on the inner sealing ring.

[0013] Preferably, a head silicone O-type sealing ring is provided on the inner extending groove, and an annular groove for accommodating the head silicone O-type sealing ring is opened on the inner wall of the inner extending groove.

[0014] Preferably, the screw seal assembly comprises a threaded barrel threadedly connected to the threaded rod, the horizontal seat is fixedly rotated on the threaded barrel, and the horizontal seat is provided with a limit assembly for limiting the synchronous rotation of the threaded barrel and the threaded rod;

[0015] The horizontal seat is provided with a homonymous seat, and the horizontal seat is provided with a rectangular groove for horizontal sliding connection of the homonymous seat, and the homonymous seat and the arc plate are fixedly connected.

[0016] Preferably, the limit assembly includes a card plate arranged on the horizontal seat, and the horizontal seat is provided with a receiving groove for sliding connection of the card plate, a pressure spring is arranged in the receiving groove, and two ends of the pressure spring are respectively fixedly connected to the card plate and the horizontal seat;

[0017] The threaded barrel is provided with a clamping groove used in conjunction with the clamping plate.

[0018] Preferably, a positioning pin is fixedly connected to one side of the clamping plate facing the corresponding seat, and an oblique positioning groove for sliding connection of the positioning pin is provided on the corresponding seat.

[0019] Preferably, the outer ring of the threaded rod is provided with a gear, the gear is coaxially fixed on the threaded tube, the gear is meshingly connected with an external gear ring, the external gear ring is fixedly sleeved on the internal threaded ring, and a positioning hole for bolting the internal threaded ring is opened on the pressure plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention realizes efficient sealing between pipelines by setting up a shaft sealing structure and using an inner sealing ring, an outer thread ring and an inner thread ring in combination. The inner sealing ring penetrates deeply into the end of the pipe through thread cooperation, thereby ensuring the sealing effect, avoiding medium leakage and improving the reliability of pipeline sealing.

[0022] 2. The present invention provides a screw seal assembly, and through the threaded cooperation of the internal thread ring and the external thread ring, the pipe connector can be quickly installed and disassembled, which reduces the construction time and labor cost and ensures the stability of the pipe connector.

[0023] 3. The present invention further improves the anti-seepage performance by setting up multiple sealing designs, including silicone O-rings, movable sealing rings and special-shaped rubber sealing seats. The joints between the inner sealing ring and the end of the pipe are sealed by multiple sealing parts, ensuring the long-term stable operation of the pipeline during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the components where the mounting seat of the present invention is located;

[0026] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the components where the special-shaped rubber seal seat of the present invention is located;

[0028] Figure 5 This is a schematic diagram of the components where the internal thread ring of the present invention is located;

[0029] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle;

[0030] Figure 7 This is a schematic diagram of the components where the horizontal seat of the present invention is located;

[0031] Figure 8 This is a schematic diagram of the initial state of the inner sealing ring and the end of the pipe mouth of the present invention;

[0032] Fig. 9 It is a schematic diagram of the fixing state of the inner sealing ring and the end of the pipe mouth of the present invention;

[0033] Fig.10 It is a schematic diagram of the gap metal ring of the present invention.

[0034] In the figure: 1. pipe end; 101. inner extension groove; 2. pipe end tail; 201. give way groove; 3. inner sealing ring; 301. end oblique part; 302. middle oblique part; 4. extension part; 5. external thread ring; 6. internal thread ring; 7. notched metal ring; 8. trapezoidal groove; 9. special-shaped rubber sealing seat; 10. movable sealing ring; 11. pressure plate; 12. mounting seat; 13. threaded rod; 14. threaded cylinder; 15. horizontal seat; 16. clamping plate; 17. pressure spring; 18. containing groove; 19. same position seat; 20. arc plate; 21. positioning ring; 22. tail silicone O-ring; 23. positioning pin; 24. oblique positioning groove; 25. gear; 26. external gear ring; 27. head silicone O-ring. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 10The present invention provides a technical solution: a water supply and drainage engineering building anti-seepage structure of a construction project, comprising a connector for connecting adjacent water supply and drainage pipes, the water supply and drainage pipes comprising a pipe end 1 and a pipe end tail 2, the connector comprising an internal threaded ring 6 arranged on the pipe end 1 and an external threaded ring 5 arranged on the pipe end tail 2 and used in conjunction with the internal threaded ring 6, the pipe end 1 is provided with a shaft sealing structure that drives the pipe end 1 and the pipe end tail 2 of the adjacent water supply and drainage pipes to be sealed and connected;

[0037] The shaft sealing structure comprises an inner sealing ring 3 arranged on the pipe end tail 2, an outer threaded ring 5 is integrally formed on the inner sealing ring 3, and an integrally formed extension portion 4 is also provided on the side of the inner sealing ring 3 facing the pipe end head 1, an inner extension groove 101 for clamping the extension portion 4 is provided on the pipe end head 1, and an inner sealing component for driving the inner sealing ring 3 to be inserted and fixed to the pipe end tail 2 is provided on the pipe end head 1;

[0038] The internal thread ring 6 is slidably sleeved on the pipe end 1, a mounting hole for fixing the external thread ring 5 is opened on the pipe end tail 2, and a transverse sliding groove for horizontal sliding of the external thread ring 5 is opened on the pipe end tail 2, and a screw sealing component for driving the internal thread ring 6 and the external thread ring 5 to threadably cooperate is provided on the pipe end 1.

[0039] like Figure 1 and Figure 2 As shown, when two groups of water supply and drainage pipes are spliced, the adjacent pipe ends 1 and pipe ends 2 of the two groups of pipes are made to correspond to each other and be on the same horizontal axis, and the inner sealing ring 3 is inserted and set on the pipe end 2, so that the inner sealing ring 3 is inside the pipe end 2 and the outer threaded ring 5 is slidably connected to the pipe end 2 through a transverse slide groove.

[0040] At the same time, driven by the inner sealing component, the internal threaded ring 6 on the pipe end 1 can be driven to move toward the side of the internal sealing ring 3, and under the push of the internal threaded ring 6, the internal sealing ring 3 is penetrated into the pipe end tail 2 until the internal sealing ring 3 reaches the maximum penetration distance. Among them, when the internal threaded ring 6 conflicts with the external threaded ring 5, due to the threaded cooperation between the internal threaded ring 6 and the external threaded ring 5, at this time, the horizontal movement process of the internal threaded ring 6 only pushes the internal sealing ring 3 to penetrate into the pipe end tail 2 through the external threaded ring 5. Subsequently, under the action of the screw sealing component, the internal threaded ring 6 can be driven to rotate in the vertical direction, so that the external threaded ring 5 and the internal threaded ring 6 are in a screwed state.

[0041] It should be noted that, in actual use, the internal threaded ring 6 is slidably mounted on the pipe end 1, and the external threaded ring 5 is arranged on the pipe end 2 through a transverse groove. Therefore, the external threaded ring 5 cannot rotate under the restriction of the transverse groove. Then, when the internal threaded ring 6 rotates, it can drive the external threaded ring 5 and the inner sealing ring 3 away from the pipe end 2 by a certain distance. When the threaded parts of the external threaded ring 5 and the internal threaded ring 6 are fully matched, the external threaded ring 5 is fixedly connected to the corresponding mounting hole on the pipe end 2 by bolts, thereby determining the relative position between the external threaded ring 5 and the pipe end 2.

[0042] Subsequently, by adjusting the relative distance between the pipe end 1 and the pipe end tail 2, the extension portion 4 is made to penetrate into the inner extension groove 101, and the length of the inner extension groove 101 is consistent with the length of the extension portion 4. Then, when the extension portion 4 is completely in the inner extension groove 101, the pipe end 1 and the external threaded ring 5 can be driven to contact and connect with each other, thereby driving the pipe end 1 and the pipe end tail 2 to be sealed and connected through the inner sealing ring 3.

[0043] In one of the more preferred embodiments, the inner sealing assembly includes a pressing plate 11 fixedly connected to the pipe end 1, and a mounting seat 12 is detachably connected to the pressing plate 11 by bolts, and a threaded rod 13 driven by a motor and freely rotating in a vertical direction is provided on the mounting seat 12, and the threaded rod 13 is fixedly rotated on the mounting seat 12;

[0044] The threaded rod 13 is provided with a horizontal seat 15 which can move freely in the horizontal direction. The outer peripheral surface of the internal threaded ring 6 is provided with an arc plate 20 which moves synchronously with the horizontal seat 15. Two groups of positioning rings 21 are fixedly sleeved on the internal threaded ring 6. The arc plate 20 is located between the two groups of positioning rings 21, and the arc plate 20 is in sliding contact with the opposite surfaces of the two groups of positioning rings 21.

[0045] like Figure 1 , Figure 2 and Figure 5 As shown, when sealing and fixing two groups of water supply and drainage pipes, the mounting seat 12 is fixedly set on the pressure plate 11 by bolts, and the threaded rod 13 on the mounting seat 12 is driven by a motor fixed on the mounting seat 12 to rotate with a fixed axis to move in the vertical direction. During the rotation of the threaded rod 13, the arc plate 20 set thereon can be driven to move in the horizontal direction. When the mounting seat 12 is placed, the arc plate 20 is driven to be between the two groups of positioning rings 21, and then when the threaded rod 13 rotates, the internal threaded ring 6 can be driven to move horizontally toward the side of the external threaded ring 5 by driving the arc plate 20 to move.

[0046] At the same time, when the internal threaded ring 6 conflicts with the external threaded ring 5, as the arc plate 20 continues to move, the internal threaded ring 6 can push the external threaded ring 5 to move synchronously, so that the inner sealing ring 3 gradually penetrates into the pipe end 1. After the inner sealing ring 3 is at the maximum penetration distance relative to the pipe end 1, the internal threaded ring 6 cannot continue to move horizontally due to the restrictions of the external threaded ring 5 and the internal sealing ring 3. At this time, the threaded rod 13 continues to rotate, and the subsequent rotation process of the threaded rod 13 can drive the screw sealing assembly to operate, and then when the screw sealing assembly is running, the external threaded ring 5 and the extension part 4 can be gradually threaded together and finally be in the maximum thread matching state.

[0047] On the basis of the embodiment of the inner sealing assembly, the inner sealing ring 3 includes an integrally formed end oblique portion 301 and a middle oblique portion 302, a tail silicone O-type sealing ring 22 is clamped and fixed on the outer peripheral surface of the inner sealing ring 3, an integrally formed giving way groove 201 is provided on the pipe end tail 2, and a special-shaped rubber sealing seat 9 is abutted and fixed on the giving way groove 201, a movable sealing ring 10 is clamped and fixed on the special-shaped rubber sealing seat 9, and a notched metal ring 7 is clamped on the side of the giving way groove 201 away from the special-shaped rubber sealing seat 9;

[0048] The end oblique portion 301 and the middle oblique portion 302 are both in sliding contact with the notched metal ring 7 , and a trapezoidal groove 8 for supporting the notched metal ring 7 is provided on the inner sealing ring 3 .

[0049] The inner extending groove 101 is provided with a head silicone O-type sealing ring 27 , and an annular groove for accommodating the head silicone O-type sealing ring 27 is opened on the inner wall of the inner extending groove 101 .

[0050] like Figure 1 , Figure 5 , Figure 8 , Fig. 9 and Fig.10 As shown, when the inner sealing ring 3 is pushed by the inner thread ring 6 and gradually penetrates into the pipe end 2, the end bevel 301 of the inner sealing ring 3 is firstly contacted with the notched metal ring 7 (as shown in FIG. Figure 8 As shown), the notched metal ring 7 is pushed away from the initial position by the end bevel 301, and then the notched metal ring 7 enters the position of the clearance groove 201.

[0051] At the same time, as the inner sealing ring 3 gradually penetrates into the pipe end tail 2, the middle oblique portion 302 is squeezed and contacted with the notched metal ring 7, and the notched metal ring 7 is driven to deform under the extrusion of the middle oblique portion 302, until the trapezoidal groove 8 opened in the inner sealing ring 3 corresponds to the notched metal ring 7, the notched metal ring 7 recovers its deformation and enters and is fixed in the trapezoidal groove 8. It should be noted that the material of the notched metal ring 7 is a metal with a certain deformation ability and recovers its original shape after deformation, including but not limited to stainless steel or shape memory alloy.

[0052] Among them, when the screw sealing assembly is running, since the external thread ring 5 is slidably arranged on the pipe end tail 2, when the internal thread ring 6 rotates, the relative positions between the external thread ring 5 and the internal sealing ring 3 and the pipe end tail 2 can be changed, so that the internal sealing ring 3 moves away from the pipe end tail 2 by a certain distance. At this time, since the notched metal ring 7 is clamped and fixed in the trapezoidal groove 8, as the inner sealing ring 3 moves away from the pipe end tail 2, the trapezoidal groove 8 drives the notched metal ring 7 to move synchronously and when the external thread ring 5 and the internal thread ring 6 are in the maximum thread matching state, the notched metal ring 7 can be driven to return to the initial position (such as Fig. 9 as shown).

[0053] It should be noted that, in actual use, after the pipe end 1 and the pipe end tail 2 are sealed and fixed, the water flowing in the gap between the pipe end tail 2 and the end bevel 301 will push the movable sealing ring 10 and the special-shaped rubber seal seat 9 to move toward the position of the notched metal ring 7, until the special-shaped rubber seal seat 9 and the notched metal ring 7 are in conflict, and the bevel between the special-shaped rubber seal seat 9 and the middle bevel 302 are in contact. Moreover, under the action of the movable sealing ring 10, the movable sealing ring 10, the notched metal ring 7 and the tail silicone O-ring 22 jointly seal the joint between the pipe end tail 2 and the inner sealing ring 3 to prevent the medium from leaking from the interface, thereby further improving the sealing effect.

[0054] At the same time, after determining the relative position between the external threaded ring 5 and the pipe end 2, the pipe end 1 is moved to drive the extension part 4 to extend into the inner extension groove 101. As the extension part 4 fully penetrates into the inner extension groove 101, the head silicone O-ring 27 provided on the inner extension groove 101 can be squeezed to drive the head silicone O-ring 27 to deform, thereby sealing the joint between the extension part 4 and the pipe end 1 to avoid leakage.

[0055] Furthermore, the screw seal assembly includes a threaded barrel 14 threadedly connected to the threaded rod 13, a transverse seat 15 fixedly rotates on the threaded barrel 14, and a limit assembly is provided on the transverse seat 15 to limit the synchronous rotation of the threaded barrel 14 and the threaded rod 13;

[0056] The horizontal seat 15 is provided with a homonymous seat 19 , and the horizontal seat 15 is provided with a rectangular groove for horizontal sliding connection of the homonymous seat 19 , and the homonymous seat 19 and the arc plate 20 are fixedly connected.

[0057] The limit assembly includes a clamping plate 16 disposed on the horizontal seat 15, and the horizontal seat 15 is provided with a receiving groove 18 for sliding connection of the clamping plate 16, and a pressure spring 17 is arranged in the receiving groove 18, and the two ends of the pressure spring 17 are respectively fixedly connected to the clamping plate 16 and the horizontal seat 15;

[0058] The threaded barrel 14 is provided with a clamping groove for use with the clamping plate 16 .

[0059] A positioning pin 23 is fixedly connected to one side of the clamping plate 16 facing the corresponding seat 19 , and an oblique positioning groove 24 for the positioning pin 23 to be slidably connected is provided on the corresponding seat 19 .

[0060] The outer ring of the threaded rod 13 is sleeved with a gear 25, which is coaxially fixed on the threaded tube 14. The gear 25 is meshed with an outer gear ring 26, which is fixedly sleeved on the inner thread ring 6. The pressure plate 11 is provided with a positioning hole for bolting the inner thread ring 6.

[0061] like Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, when the threaded rod 13 rotates under the drive of the motor, since the clamping plate 16 is in the clamping groove opened on the threaded barrel 14 in the initial state, and the clamping plate 16 is set in the horizontal seat 15, and the horizontal seat 15 cannot rotate with the threaded rod 13, therefore, when the threaded rod 13 rotates, the threaded barrel 14 cannot rotate synchronously with the threaded rod 13 due to the restriction of the clamping plate 16, and then with the continuous rotation of the threaded rod 13, the horizontal seat 15 and the components thereon can be driven to move in the horizontal direction through the threaded barrel 14.

[0062] At the same time, a parallel seat 19 is slidably arranged on the transverse seat 15, and an arc plate 20 fixedly arranged at the end of the parallel seat 19 is located between two sets of positioning rings 21 fixedly arranged on the internal threaded ring 6. Therefore, when the transverse seat 15 moves in the horizontal direction, the arc plate 20 can push the internal threaded ring 6 to move synchronously, thereby making the internal threaded ring 6 approach the external threaded ring 5.

[0063] Among them, when the internal threaded ring 6 and the external threaded ring 5 are in conflict with each other, the external threaded ring 5 can move synchronously under the push of the internal threaded ring 6, so that the inner sealing ring 3 gradually penetrates into the pipe end 2. When the inner sealing ring 3 is at the maximum penetration distance on the pipe end 2, both the external threaded ring 5 and the inner sealing ring 3 cannot continue to move under the restriction of the pipe end 2, so that the arc plate 20 cannot continue to move horizontally. At this time, as the threaded rod 13 continues to rotate, the horizontal seat 15 can continue to move horizontally for a certain distance, so that relative movement occurs between the same position seat 19 and the horizontal seat 15.

[0064] At the same time, when the transverse seat 15 and the same position seat 19 have relative movement, since the card plate 16 is set in the accommodating groove 18 opened on the transverse seat 15, the positioning pin 23 fixed on the card plate 16 can be driven to slide on the oblique positioning groove 24, and the horizontal height of the card plate 16 is changed through the sliding process to drive the card plate 16 out of the slot.

[0065] It should be noted that when the clamping plate 16 is disengaged from the clamping groove, the threaded barrel 14 will no longer be restricted by the clamping plate 16, and the subsequent rotation process of the threaded rod 13 can drive the threaded barrel 14 to rotate synchronously with it, and the horizontal position of the horizontal seat 15 will no longer change. At the same time, a gear 25 is coaxially fixed on the threaded barrel 14, and the gear 25 is engaged with an external gear ring 26 fixedly mounted on the internal threaded ring 6. Therefore, when the threaded barrel 14 rotates following the threaded rod 13, the internal threaded ring 6 can be driven to rotate on the pipe end 1. Among them, since the external threaded ring 5 cannot rotate on the pipe end 2, and then when the threaded parts of the external threaded ring 5 and the internal threaded ring 6 conflict and the internal threaded ring 6 rotates, the external threaded ring 5 can be driven to move in the horizontal direction to drive the inner sealing ring 3 to move a certain distance away from the pipe end 2.

[0066] Therefore, when the internal threaded ring 6 rotates and drives the inner sealing ring 3 to move away from the pipe end tail 2, the movement of the inner sealing ring 3 can drive the notched metal ring 7 fixed on the trapezoidal groove 8 to move synchronously, and when the external threaded ring 5 and the internal threaded ring 6 are in the maximum thread matching state, the notched metal ring 7 can be driven to move to the initial position, and then the notched metal ring 7 is used to limit the position of the inner sealing ring 3 and the pipe end tail 2 to prevent the inner sealing ring 3 from separating from the pipe end tail 2.

[0067] Furthermore, when the external thread ring 5 and the internal thread ring 6 are in the maximum thread matching state, the external thread ring 5 is fixedly set on the mounting hole by bolts, and the mounting seat 12 is removed from the pressure plate 11, so that the motor and parts on the mounting seat 12 are separated from the pipe end 1, so as to achieve the reuse in the subsequent water supply and drainage pipe installation and splicing. After the mounting seat 12 is separated from the pipe end 1, the pipe end 1 is pushed to move in the direction of the extension part 4 by an external electric push rod or other equipment, so as to drive the extension part 4 to extend into the inner extension groove 101 until the extension is The portion 4 is completely in the inner extension groove 101, during this process, the position of the pipe end 2 remains unchanged, and the position of the internal threaded ring 6 will not change under the restriction of the external threaded ring 5, and then when the pipe end 1 moves horizontally, the pressing plate 11 can be close to the internal threaded ring 6, and the two overlap by a certain width, and the internal threaded ring 6 is fixed to the positioning hole opened on the pressing plate 11 by bolts, thereby completing the double fixation of the connecting piece, so that it can seal the interface between adjacent water supply and drainage pipes and can achieve the purpose of fixed splicing of two groups of water supply and drainage pipes.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water supply and drainage engineering anti-seepage structure for a construction project, comprising a connector for connecting adjacent water supply and drainage pipes, the water supply and drainage pipes comprising a pipe end (1) and a pipe end tail (2), characterized in that: The connecting piece comprises an internal threaded ring (6) arranged on a pipe end (1) and an external threaded ring (5) arranged on a pipe end tail (2) and used in conjunction with the internal threaded ring (6); the pipe end (1) is provided with a shaft sealing structure for driving the pipe end (1) and the pipe end tail (2) of adjacent water supply and drainage pipes to be sealed and connected; The shaft sealing structure comprises an inner sealing ring (3) arranged on the pipe end tail (2), an outer threaded ring (5) integrally formed on the inner sealing ring (3), and an integrally formed extension portion (4) is also provided on the side of the inner sealing ring (3) facing the pipe end head (1), an inner extension groove (101) for clamping the extension portion (4) is provided on the pipe end head (1), and an inner sealing component for driving the inner sealing ring (3) to be plugged and fixed to the pipe end tail (2) is provided on the pipe end head (1); The internal thread ring (6) is slidably sleeved on the pipe end (1), a mounting hole for fixing the external thread ring (5) is provided on the pipe end tail (2), and a transverse slide groove for horizontal sliding of the external thread ring (5) is provided on the pipe end tail (2), and a screw seal assembly for driving the internal thread ring (6) and the external thread ring (5) to engage with each other in threaded engagement is provided on the pipe end (1); The inner sealing assembly comprises a pressing plate (11) fixedly connected to the pipe end (1); a mounting seat (12) is detachably connected to the pressing plate (11) via bolts; a threaded rod (13) driven by a motor and freely rotatable in a vertical direction is provided on the mounting seat (12); the threaded rod (13) is fixedly rotatable on the mounting seat (12); The threaded rod (13) is provided with a horizontal seat (15) that can move freely in the horizontal direction, the outer peripheral surface of the internal threaded ring (6) is provided with an arc plate (20) that moves synchronously with the horizontal seat (15), and the internal threaded ring (6) is fixedly sleeved with two groups of positioning rings (21), the arc plate (20) is located between the two groups of positioning rings (21), and the arc plate (20) and the opposite surfaces of the two groups of positioning rings (21) are in sliding contact; The inner sealing ring (3) comprises an integrally formed end oblique portion (301) and a middle oblique portion (302); a tail silicone O-type sealing ring (22) is clamped and fixed on the outer peripheral surface of the inner sealing ring (3); an integrally formed clearance groove (201) is provided on the end tail (2) of the pipe mouth; a special-shaped rubber sealing seat (9) is abutted and fixed on the clearance groove (201); a movable sealing ring (10) is clamped and fixed on the special-shaped rubber sealing seat (9); and a notched metal ring (7) is clamped on the side of the clearance groove (201) away from the special-shaped rubber sealing seat (9); The end oblique portion (301) and the middle oblique portion (302) are both in sliding contact with the notched metal ring (7), and a trapezoidal groove (8) for supporting the notched metal ring (7) is provided on the inner sealing ring (3).

2. The water supply and drainage engineering anti-seepage structure of a construction project according to claim 1, characterized in that: The inner extending groove (101) is provided with a head silicone O-type sealing ring (27), and an annular groove for accommodating the head silicone O-type sealing ring (27) is opened on the inner wall of the inner extending groove (101).

3. The anti-seepage structure for water supply and drainage engineering of a construction project according to claim 2, characterized in that: The screw seal assembly comprises a threaded barrel (14) threadably connected to the threaded rod (13); a transverse seat (15) is fixedly rotatable on the threaded barrel (14); and a limit assembly is provided on the transverse seat (15) for limiting the synchronous rotation of the threaded barrel (14) and the threaded rod (13); The transverse seat (15) is provided with a corresponding seat (19), and the transverse seat (15) is provided with a rectangular groove for horizontal sliding connection of the corresponding seat (19), and the corresponding seat (19) and the arc plate (20) are fixedly connected.

4. The anti-seepage structure for water supply and drainage engineering of a construction project according to claim 3, characterized in that: The limiting assembly comprises a clamping plate (16) arranged on the transverse seat (15), and the transverse seat (15) is provided with a receiving groove (18) for sliding connection of the clamping plate (16), a pressure spring (17) is arranged in the receiving groove (18), and two ends of the pressure spring (17) are respectively fixedly connected to the clamping plate (16) and the transverse seat (15); The threaded barrel (14) is provided with a clamping groove for use with the clamping plate (16).

5. The anti-seepage structure for water supply and drainage engineering of a construction project according to claim 4, characterized in that: A positioning pin (23) is fixedly connected to one side of the clamping plate (16) facing the corresponding seat (19), and an oblique positioning groove (24) for the positioning pin (23) to be slidably connected is provided on the corresponding seat (19).

6. The anti-seepage structure for water supply and drainage engineering of a construction project according to claim 5, characterized in that: The outer ring of the threaded rod (13) is provided with a gear (25), the gear (25) is coaxially fixed on the threaded tube (14), the gear (25) is meshingly connected with an outer gear ring (26), the outer gear ring (26) is fixedly sleeved on the inner thread ring (6), and a positioning hole for bolting the inner thread ring (6) is opened on the pressure plate (11).

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