PE locking half joint capable of improving longitudinal locking capacity

Abstract

The invention discloses a PE locking half joint capable of improving the longitudinal locking capacity, and relates to the technical field of half joints. The device comprises two half-pipe shells which are symmetrically arranged, two PE butt joint pipelines are placed in the two half-pipe shells, locking lugs are fixedly installed on the two sides of the butt joint position of the two half-pipe shells correspondingly, and a plurality of locking holes which are evenly distributed are formed in the tops of the locking lugs correspondingly; copper locking semi-rings are fixedly installed on the inner walls of the two ends of the semi-pipe shell, and a plurality of rack type rubber sleeves evenly distributed along the axis of the semi-pipe shell are fixedly installed on the inner walls of the semi-pipe shell. By arranging the longitudinal locking assembly, two sets of four hexagonal heads are sequentially rotated, drill pipe conical heads at the bottom ends of the drill pipes are drilled into the outer pipe walls of the PE butt joint pipelines till the drill pipe conical heads completely penetrate through the pipe walls, the four drill pipes are inserted into drill holes in a penetrating mode correspondingly, the two PE butt joint pipelines are longitudinally blocked, and therefore the two PE butt joint pipelines can be locked. And the PE butt joint pipeline is further prevented from being pulled out longitudinally outwards.

Description

Technical Field

[0001] The invention relates to the technical field of half joints, and in particular to a PE locking half joint with improved longitudinal locking capability. Background Art

[0002] The Haff joint is a common pipeline leak stopper and pipeline emergency repair device. It can be used to repair leaks at the socket of two pipes and the pipeline itself. The Haff joint has a simple structure and is generally composed of only two semi-pipe shells, rubber pads and fastening bolts. It is easy to install. Only the shells are aligned at the leaking part and the bolts are tightened to complete the emergency repair of the pipeline. The use of this device can save water outage time and reduce emergency repair costs.

[0003] When the existing half joint is used to connect two PVC / PE pipes, since the half joint only tightens the pipes but does not lock the pipes longitudinally, the pipes are easily affected by geological subsidence and water hammer in the buried area, or by factors such as a sudden increase in pressure, which may cause the two pipes to be easily pulled apart longitudinally, thereby causing the pipe connection to be disconnected. Therefore, a PE locking half joint with improved longitudinal locking ability is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that when the existing half joint is used to connect two PVC / PE pipes, the half joint only tightens the pipes but does not lock the pipes longitudinally, making the pipes susceptible to geological subsidence and water hammer in the buried area, or sudden pressure increase, which may cause the two pipes to be easily pulled apart longitudinally, thereby causing the pipe connection to be disconnected. The present invention provides a PE locking half joint with improved longitudinal locking capability.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A PE locking half joint with improved longitudinal locking capability, comprising two symmetrically arranged half-tube shells, two PE butt-jointed pipes are placed inside the two half-tube shells, locking ears are fixedly installed on both sides of the butt joints of the two half-tube shells, a plurality of evenly distributed locking holes are opened on the tops of the locking ears, copper locking half rings are fixedly installed on the inner walls of both ends of the half-tube shells, a plurality of rack-type rubber sleeves evenly distributed along the axis of the half-tube shells are fixedly installed on the inner walls of the half-tube shells, and longitudinal locking components are arranged on the side walls of the half-tube shells; The longitudinal locking assembly is used to respectively perform drilling and locking on one end of the two PE butt-joint pipes. The locking assembly comprises two guide screw sleeves respectively fixedly mounted on the two ends of the half-tube shell, the axes of the two guide screw sleeves are perpendicular to the axis of the half-tube shell, one end of the guide screw sleeve extends to the interior of the half-tube shell, the interior of the guide screw sleeve is threaded with a guide screw, one end of the guide screw extends to the outside of the half-tube shell and is fixedly mounted with an extrusion block, the side of the extrusion block facing away from the guide screw is fixedly mounted with a hexagonal head, the other end of the guide screw is fixedly mounted with a drill rod, one end of the drill rod is located inside the half-tube shell and is fixedly mounted with a drill pipe cone head, and an elastic rubber sleeve is fixedly sleeved on the drill rod.

[0006] Furthermore, a water-swellable rubber sleeve is fixedly sleeved on the top of the drill rod, and the elastic rubber sleeve is located between the water-swellable rubber sleeve and the drill pipe cone head.

[0007] Furthermore, an outer rubber sleeve is movably sleeved on one end of the guide screw located outside the half-tube shell, and the outer rubber sleeve is located between the guide screw sleeve and the extrusion block.

[0008] Furthermore, a protective shell matched with the outer rubber sleeve is movably sleeved on one end of the guide screw located outside the half-tube shell, and the protective shell is located on the top of the outer rubber sleeve.

[0009] Furthermore, a positioning lower shell is placed at the bottom of the two locking ears located at the same place, a receiving groove adapted to the locking ears is opened inside the positioning lower shell, a plurality of fastening thread grooves are opened on the inner wall of the positioning lower shell, a positioning upper cover is placed on the top of the positioning lower shell, and a plurality of yield grooves corresponding to the positions of the fastening thread grooves are opened on the top of the positioning upper cover.

[0010] Furthermore, a plurality of positioning slots corresponding to the positions of the locking holes are provided inside the receiving slot, and a bolt receiving slot is provided at the bottom of each of the positioning slots.

[0011] Furthermore, a plurality of magnetic blocks are fixedly mounted on the inner wall of the positioning lower shell.

[0012] Furthermore, a first sealing strip in contact with the locking ear is fixedly mounted on the inner wall of the positioning lower shell, and a plurality of second sealing strips in contact with the locking ear and the positioning lower shell are fixedly mounted on the inner wall of the positioning upper cover.

[0013] The beneficial effects of the present invention are as follows: 1. When the present invention is in use, the two sets of copper locking half rings at both ends of the half-tube housing will be assembled and sleeved on the outer pipe wall of the PE butt-jointed pipe, thereby pressing the pipe wall, and the PE butt-jointed pipe is longitudinally locked by means of the sawtooth structure of the copper locking half ring. At the same time, the rack-type rubber sleeve inside the half-tube housing will elastically deform and squeeze on the outer pipe wall of the half-tube housing as the half-tube housing is assembled, which also increases the friction between the half-tube housing and the PE butt-jointed pipe, improves the longitudinal locking effect of the half-tube housing on the PE butt-jointed pipe, and prevents the PE butt-jointed pipe from being pulled off due to external force; 2. The present invention provides a longitudinal locking assembly, so that after the half-tube housing is assembled on the PE butt-joint pipe, two groups of four hexagonal heads are rotated in sequence, so that the drill pipe cone head at the bottom of the drill rod drills into the outer pipe wall of the PE butt-joint pipe until the drill pipe cone head completely penetrates the pipe wall, so that the four drill rods are respectively inserted into the drill holes, and the two PE butt-joint pipes are longitudinally blocked, further preventing the PE butt-joint pipes from being longitudinally pulled outward; 3. The present invention provides an elastic rubber sleeve so that the cylindrical sleeve of the elastic rubber sleeve replaces the drill rod to contact the inner wall of the borehole, thereby playing a protective role and effectively preventing the borehole from tearing. At the same time, the annular sleeve can cover the gap between the borehole and the cylindrical sleeve inside the PE butt joint pipe. When the PE butt joint pipe is conveying water, the annular sleeve will compress the gap under the action of water pressure, thereby effectively preventing the borehole from leaking. 4. The present invention provides a water-swelling rubber sleeve, so that when the water pressure of the PE butt joint pipe is unstable, the water flow contains impurities, or the elastic rubber sleeve is aged, cracked, corroded, etc., resulting in leakage in the borehole, the water-swelling rubber sleeve at the top of the drill pipe will be tightly attached to the outer pipe wall of the PE butt joint pipe and absorb the seepage water in the gap between the borehole and the elastic rubber sleeve, and begin to expand, thereby sealing the gap from the outside, effectively preventing the half joint from leaking after long-term use; 5. The present invention provides an outer rubber sleeve so that when drilling a hole in the pipe wall of the PE butt joint pipe, the spirally moving guide screw drives the extrusion block to gradually press the outer rubber sleeve, causing the outer rubber sleeve to deform and tightly cover the top of the guide screw sleeve, covering the matching gap between the guide screw sleeve and the guide screw, so that the interior of the half-pipe shell is sealed, preventing water from seeping into the PE butt joint pipe or water from accumulating outside the half-pipe shell from leaking into the interior of the half-pipe shell; 6. The present invention provides a positioning lower shell and a positioning upper cover, so that the positioning lower shell and the positioning upper cover are buckled on the two assembled locking ears, so that the locking ears are located in the receiving grooves in the positioning lower shell, and a plurality of single screws are respectively passed through the concession grooves on the positioning upper cover and screwed into the fastening thread grooves, so that the positioning upper cover is locked on the positioning lower shell, so that the positioning lower shell and the positioning upper cover protect the joint of the locking ears, effectively preventing the hexagonal bolts from rusting, and facilitating subsequent disassembly and maintenance; 7. The present invention provides a positioning slot, so that when locking the two locking ears, the hexagonal nut can be placed in the positioning slot first, and then the two positioning lower shells are buckled on the bottom of the two locking ears, and then the hexagonal screw can be inserted into a group of locking holes. At this time, the hexagonal nut is limited by the positioning slot, and the staff only needs to tighten the hexagonal screw without fixing the nut, which greatly facilitates the assembly of the half-tube shell; 8. The present invention arranges the first sealing strip and the second sealing strip so that the positioning lower shell and the positioning upper cover are locked on the locking ears. The gaps among the positioning lower shell, the positioning upper cover and the locking ears are filled by the positioning lower shell and the positioning upper cover respectively, thereby improving the sealing performance of the positioning lower shell and the interior of the positioning upper cover, and further improving the protective performance of the positioning lower shell and the positioning upper cover on the hexagonal bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the assembly of two half-tube shells of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the half-tube shell and the outer rubber sleeve of the present invention; Figure 4 The present invention Figure 3 Schematic diagram of the structure at A in the middle; Figure 5 This is a schematic diagram of the three-dimensional structure of the half-tube housing of the present invention from a first-view perspective; Figure 6 is a schematic diagram of the three-dimensional structure of the half-tube housing of the present invention from a second viewing angle; Figure 7 It is a schematic diagram of the three-dimensional structure of the longitudinal locking assembly of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the drill rod and the elastic rubber sleeve of the present invention; Fig. 9 This is a schematic diagram of the three-dimensional structure of the lower housing of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the positioning upper cover of the present invention; Figure numerals: 1, half-tube shell; 2, docking pipe; 3, locking ear; 301, locking hole; 4, copper locking half ring; 5, rack-type rubber sleeve; 6, guide screw sleeve; 7, guide screw; 8, extrusion block; 9, hexagonal head; 10, drill rod; 11, drill pipe cone head; 12, elastic rubber sleeve; 13, water-swelling rubber sleeve; 14, outer rubber sleeve; 15, protective shell; 16, positioning lower shell; 1601, receiving groove; 1602, fastening thread groove; 1603, positioning slot; 1604, bolt receiving groove; 17, positioning upper cover; 1701, give way groove; 18, magnetic block; 19, first sealing strip; 20, second sealing strip. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0017] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0018] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] like Figures 1 to 10 As shown, a PE locking half joint with improved longitudinal locking capability comprises two symmetrically arranged half-tube shells 1, as shown in FIG. Figure 1 As shown, two PE butt-joint pipes 2 are placed inside the two half-pipe shells 1. Figure 2 As shown, locking ears 3 are fixedly installed on both sides of the butt joint of the two half-tube shells 1, and a plurality of evenly distributed locking holes 301 are opened on the top of the locking ears 3. In this embodiment, a set of hexagonal bolts are passed through the two locking holes 301 located at the same place, which are used to lock the two locking ears 3, so that the two half-tube shells 1 are assembled on the two butt joint PE butt pipes 2, as shown in FIG. Figure 6As shown, copper locking half rings 4 are fixedly installed on the inner walls of both ends of the half-tube shell 1, and a plurality of rack-type rubber sleeves 5 evenly distributed along the axis of the half-tube shell 1 are fixedly installed on the inner wall of the half-tube shell 1. In this embodiment, the copper locking half ring 4 is a sawtooth structure, the rack-type rubber sleeve 5 is a rack structure, and a longitudinal locking component is arranged on the side wall of the half-tube shell 1. Specifically, when the PE locking half joint is used, the two half-tube shells 1 are first combined and buckled on the butt joints of the two PE butt pipes 2 to be connected, so that the locking ears 3 at the two places are spliced ​​with each other, and a set of hexagonal bolts are assembled on the two locking holes 301 at each place for fastening, so that The half-tube housing 1 is locked at the joint of the two PE butt-jointed pipes 2. At this time, the two sets of copper locking half rings 4 inside the two ends of the half-tube housing 1 will be assembled and sleeved on the outer pipe wall of the PE butt-jointed pipe 2, thereby pressing the pipe wall, and the PE butt-jointed pipe 2 is longitudinally locked by means of the sawtooth structure of the copper locking half ring 4. At the same time, the rack-type rubber sleeve 5 inside the half-tube housing 1 will elastically deform and squeeze on the outer pipe wall of the half-tube housing 1 as the half-tube housing 1 is assembled, which also increases the friction between the half-tube housing 1 and the PE butt-jointed pipe 2, improves the longitudinal locking effect of the half-tube housing 1 on the PE butt-jointed pipe 2, and prevents the PE butt-jointed pipe 2 from being pulled off due to external force; The longitudinal locking assembly is used to punch and lock one end of two PE butt-joint pipes 2, such as Figure 5 As shown, the locking assembly includes two guide screw sleeves 6 respectively fixedly mounted at both ends of the half-tube housing 1, and the axes of the two guide screw sleeves 6 are perpendicular to the axis of the half-tube housing 1. Figure 6 As shown, one end of the guide screw sleeve 6 extends to the interior of the half-tube housing 1, as shown in FIG. Figure 7 As shown, the guide screw 7 is screwed inside the guide screw sleeve 6, one end of the guide screw 7 extends to the outside of the half-tube housing 1 and is fixedly installed with an extrusion block 8, and the side of the extrusion block 8 facing away from the guide screw 7 is fixedly installed with a hexagonal head 9, as shown in FIG. Figure 8 As shown, the other end of the guide screw 7 is fixedly mounted with a drill rod 10, and one end of the drill rod 10 is located inside the half-pipe housing 1 and is fixedly mounted with a drill pipe cone head 11. In this embodiment, the drill pipe cone head 11 can be made of Figure 8The conical structure shown in is used for drilling and locking thin-walled PVC or PE pipes. A drill-type structure can also be used for drilling and locking thick-walled PVC or PE pipes. The hexagonal head 9 is rotated by mechanical or electrical equipment, and an elastic rubber sleeve 12 is fixedly sleeved on the drill rod 10. In this embodiment, the elastic rubber sleeve 12 is a cap-shaped structure. The elastic rubber sleeve 12 is divided into two upper and lower structures of a cylindrical sleeve and an annular sleeve. The top of the annular sleeve contacts the top of the drill pipe cone head 11, and the outer diameter of the annular sleeve is larger than the outer diameter of the largest circle of the drill pipe cone head 11. Specifically, by setting a longitudinal locking component, after the half-pipe shell 1 is assembled on the PE docking pipe 2, two groups of four hexagonal heads 9 are rotated in sequence, so that the guide screw 7 moves along the guide screw sleeve 6 toward the internal bolt of the half-pipe shell 1, and then the drill pipe cone head 11 at the bottom of the drill rod 10 is drilled into the PE docking pipe 2. The outer pipe wall of the drill pipe cone 11 is penetrated completely until the drill pipe cone head 11 completely penetrates the pipe wall, so that the four drill rods 10 are respectively inserted in the borehole, and the two PE butt pipes 2 are longitudinally blocked, and the PE butt pipes 2 are further prevented from being longitudinally pulled off to the outside. By setting the elastic rubber sleeve 12, after the drill pipe cone head 11 penetrates the pipe wall of the PE butt pipe 2, the drill pipe cone head 11 will continue to move, so that the annular sleeve at the bottom of the elastic rubber sleeve 12 is compressed and contracted, until the elastic rubber sleeve 12 passes through the borehole and contacts the inner pipe wall of the PE butt pipe 2, so that the cylindrical sleeve of the elastic rubber sleeve 12 replaces the drill rod 10 to contact the inner wall of the borehole, plays a protective role, and effectively prevents the borehole from tearing. At the same time, the annular sleeve can cover the gap between the borehole and the cylindrical sleeve inside the PE butt pipe 2. When the PE butt pipe 2 is conveying water, the annular sleeve will compress the gap under the action of water pressure, effectively preventing the borehole from leaking.

[0020] like Figure 8 As shown, a water-swelling rubber sleeve 13 is fixedly sleeved on the top of the drill rod 10, and the elastic rubber sleeve 12 is located between the water-swelling rubber sleeve 13 and the drill pipe cone head 11; specifically, by arranging the water-swelling rubber sleeve 13, when the water pressure of the PE docking pipe 2 is unstable during water delivery, the water flow contains impurities, or the elastic rubber sleeve 12 is aged, cracked, corroded, etc., resulting in leakage in the borehole, the water-swelling rubber sleeve 13 located at the top of the drill rod 10 will be tightly attached to the outer pipe wall of the PE docking pipe 2 and absorb the seepage in the gap between the borehole and the elastic rubber sleeve 12, and begin to expand, thereby sealing the gap from the outside, effectively preventing the half joint from leaking after long-term use.

[0021] like Figure 4As shown, the guide screw 7 is located on one end outside the half-tube shell 1 and is movably sleeved with an outer rubber sleeve 14, and the outer rubber sleeve 14 is located between the guide screw sleeve 6 and the extrusion block 8; specifically, by arranging the outer rubber sleeve 14, when drilling a hole in the pipe wall of the PE docking pipe 2, the spirally moving guide screw 7 will drive the extrusion block 8 to gradually press the outer rubber sleeve 14, so that the outer rubber sleeve 14 is deformed and tightly covers the top of the guide screw sleeve 6, covering the matching gap between the guide screw sleeve 6 and the guide screw 7, so that the interior of the half-tube shell 1 is closed, preventing water from seeping into the PE docking pipe 2 or water from accumulating outside the half-tube shell 1 from leaking into the interior of the half-tube shell 1.

[0022] like Figure 1 , Figure 2 As shown, the guide screw 7 is located on one end outside the half-tube shell 1, and a protective shell 15 that is compatible with the outer rubber sleeve 14 is movably sleeved. The protective shell 15 is located on the top of the outer rubber sleeve 14; specifically, by setting the protective shell 15, when the extrusion block 8 descends, the protective shell 15 will be simultaneously pressed against the outer rubber sleeve 14, so that the protective shell 15 plays an external protective role on the outer rubber sleeve 14, and effectively prevents the outer rubber sleeve 14 from aging, hardening, cracking, corrosion and other problems.

[0023] like Figure 1 As shown, a positioning lower housing 16 is placed at the bottom of the two locking ears 3 located at the same place, as shown in FIG. Fig. 9 As shown, a receiving groove 1601 adapted to the locking ear 3 is provided inside the positioning lower housing 16, and a plurality of fastening thread grooves 1602 are provided on the inner wall of the positioning lower housing 16. Figure 1 As shown, a positioning upper cover 17 is placed on the top of the positioning lower housing 16. Fig.10 As shown, the top of the positioning upper cover 17 is provided with a plurality of clearance grooves 1701 corresponding to the positions of the fastening thread grooves 1602. In this embodiment, the positioning upper cover 17 is locked with the positioning lower housing 16 by means of a plurality of single screws passing through the clearance grooves 1701 and being screwed with the fastening thread grooves 1602. Specifically, by providing the positioning lower housing 16 and the positioning upper cover 17, when the half-pipe housing 1 is assembled on the PE docking pipe 2, the positioning lower housing 16 can be locked. The positioning upper cover 17 is buckled on the two assembled locking ears 3, so that the locking ear 3 is located in the accommodating groove 1601 in the positioning lower shell 16, and a plurality of single screws are respectively passed through the giving groove 1701 on the positioning upper cover 17 and screwed into the fastening thread groove 1602, so that the positioning upper cover 17 is locked on the positioning lower shell 16, so that the positioning lower shell 16 and the positioning upper cover 17 protect the assembly of the locking ear 3, effectively prevent the hexagonal bolt from rusting, and facilitate subsequent disassembly and maintenance.

[0024] like Fig. 9As shown, a plurality of positioning slots 1603 corresponding to the positions of the locking holes 301 are provided inside the accommodating groove 1601, and bolt receiving slots 1604 are provided at the bottom of the positioning slots 1603; specifically, by setting the positioning slots 1603, when locking the two locking ears 3, the hexagonal nut can be placed in the positioning slots 1603 first, and then the two positioning lower shells 16 can be buckled on the bottom of the two locking ears 3, and then the hexagonal screws can be inserted into a group of locking holes 301. At this time, the hexagonal nut is limited by the positioning slots 1603, and the staff only needs to tighten the hexagonal screws without fixing the nuts, which greatly facilitates the assembly of the half-tube shell 1.

[0025] like Fig. 9 As shown, a plurality of magnetic blocks 18 are fixedly mounted on the inner wall of the positioning lower shell 16. In the present embodiment, the magnetic blocks 18 are mounted on the inner wall of the positioning lower shell 16 in an embedded structure. Specifically, by providing the magnetic blocks 18, when the positioning lower shell 16 is buckled to the bottom of the locking ear 3, the positioning lower shell 16 will be automatically adsorbed to the bottom of the locking ear 3 under the magnetic attraction of the magnetic blocks 18 without manual support by the staff, which further facilitates the assembly and locking of the half-tube shell 1.

[0026] like Fig. 9 As shown, a first sealing strip 19 in contact with the locking ear 3 is fixedly mounted on the inner wall of the positioning lower housing 16. Fig.10 As shown, a plurality of second sealing strips 20 are fixedly installed on the inner wall of the positioning upper cover 17, which are in contact with the locking ear 3 and the positioning lower shell 16 respectively; specifically, by arranging the first sealing strip 19 and the second sealing strip 20, the positioning lower shell 16 and the positioning upper cover 17 are locked on the locking ear 3, and the gaps among the positioning lower shell 16, the positioning upper cover 17 and the locking ear 3 are filled by the positioning lower shell 16 and the positioning upper cover 17 respectively, thereby improving the sealing performance of the positioning lower shell 16 and the interior of the positioning upper cover 17, and further improving the protection performance of the positioning lower shell 16 and the positioning upper cover 17 against the hexagonal bolts.

[0027] In summary, when the PE locking half joint is used, the two half-tube shells 1 are first combined and buckled on the butt joints of the two PE butt pipes 2 to be connected, so that the locking ears 3 at the two places are spliced ​​with each other, and a set of hexagonal bolts are assembled on the two locking holes 301 at each place for tightening, so that the half-tube shell 1 is locked at the butt joints of the two PE butt pipes 2. At this time, the two sets of copper locking half rings 4 at both ends of the half-tube shell 1 will be spliced ​​and sleeved on the outer pipe wall of the PE butt pipe 2, thereby pressing the pipe wall, and the PE butt pipe 2 is longitudinally locked by means of the serrated structure of the copper locking half ring 4. At the same time, the rack-type rubber sleeve 5 inside the half-tube shell 1 will be elastically deformed and squeezed on the outer pipe wall of the half-tube shell 1 as the half-tube shell 1 is spliced, which also increases The friction between the half-tube housing 1 and the PE butt pipe 2 is increased, and the longitudinal locking effect of the half-tube housing 1 on the PE butt pipe 2 is improved to prevent the PE butt pipe 2 from being pulled off due to external force. By setting the longitudinal locking component, after the half-tube housing 1 is assembled on the PE butt pipe 2, two groups of four hexagonal heads 9 are rotated in sequence to make the guide screw 7 move along the guide screw sleeve 6 toward the internal bolt of the half-tube housing 1, so that the drill pipe cone head 11 at the bottom end of the drill rod 10 drills into the outer pipe wall of the PE butt pipe 2 until the drill pipe cone head 11 completely penetrates the pipe wall, so that the four drill rods 10 are respectively inserted in the drill hole, and the two PE butt pipes 2 are longitudinally blocked, and the PE butt pipe 2 is further prevented from being longitudinally pulled off to the outside. By setting the elastic rubber sleeve 12, so that after the drill pipe cone head 11 penetrates the pipe wall of the PE docking pipe 2, the drill pipe cone head 11 will continue to move forward, so that the annular sleeve at the bottom of the elastic rubber sleeve 12 is compressed and contracted, until the elastic rubber sleeve 12 passes through the borehole and contacts the inner wall of the PE docking pipe 2, so that the cylindrical sleeve of the elastic rubber sleeve 12 replaces the drill rod 10 to contact the inner wall of the borehole, plays a protective role, and effectively prevents the borehole from tearing. At the same time, the annular sleeve can cover the gap between the borehole and the cylindrical sleeve inside the PE docking pipe 2. When the PE docking pipe 2 is conveying water, the annular sleeve will compress the gap under the action of water pressure, effectively preventing the borehole from leaking. By setting the water-absorbing and expanding rubber sleeve 13, when the water pressure of the PE docking pipe 2 is unstable, the water flow contains impurities, or When the elastic rubber sleeve 12 has problems such as aging, cracking, corrosion, etc., resulting in leakage in the borehole, the water-absorbing and swellable rubber sleeve 13 located at the top of the drill rod 10 will be tightly attached to the outer wall of the PE docking pipe 2 and absorb the seepage in the gap between the borehole and the elastic rubber sleeve 12, and begin to expand, thereby sealing the gap from the outside, effectively preventing the half joint from having water seepage after long-term use. By setting the outer rubber sleeve 14, when drilling a hole in the pipe wall of the PE docking pipe 2, the spirally moving guide screw 7 will drive the extrusion block 8 to gradually press the outer rubber sleeve 14, so that the outer rubber sleeve 14 is deformed and tightly covers the top of the guide screw sleeve 6, covering the matching gap between the guide screw sleeve 6 and the guide screw 7, so that the interior of the half-tube shell 1 is closed,To prevent water from seeping into the PE butt joint pipe 2 or water from accumulating outside the half-pipe housing 1 from leaking into the inside of the half-pipe housing 1, the protective housing 15 is provided so that when the extrusion block 8 descends, the protective housing 15 will be pressed against the outer rubber sleeve 14 simultaneously, so that the protective housing 15 plays an external protective role on the outer rubber sleeve 14, effectively preventing the outer rubber sleeve 14 from aging, hardening, cracking, corrosion and other problems. By providing the positioning lower housing 16 and the positioning upper cover 17, when the half-pipe housing 1 is assembled on the PE butt joint pipe 2, the positioning lower housing 16 and the positioning upper cover 17 can be positioned. 7 is buckled on the two assembled locking ears 3, so that the locking ears 3 are located in the receiving groove 1601 in the positioning lower shell 16, and a plurality of single screws are respectively passed through the giving groove 1701 on the positioning upper cover 17 and screwed into the fastening thread groove 1602, so that the positioning upper cover 17 is locked on the positioning lower shell 16, so that the positioning lower shell 16 and the positioning upper cover 17 protect the joint of the locking ears 3, effectively prevent the hexagonal bolts from rusting, and facilitate subsequent disassembly and maintenance. By setting the positioning slot 1603, when locking the two locking ears 3 When the hexagonal nut is assembled, the hexagonal nut can be placed in the positioning slot 1603 first, and then the two positioning lower shells 16 are buckled on the bottom of the two locking ears 3, and then the hexagonal screw can be inserted into a set of locking holes 301. At this time, the hexagonal nut is limited by the positioning slot 1603, and the staff only needs to tighten the hexagonal screw without fixing the nut, which greatly facilitates the assembly of the half-tube shell 1. By setting the magnetic suction block 18, when the positioning lower shell 16 is buckled on the bottom of the locking ear 3, the positioning lower shell 16 will be automatically adsorbed on the locking ear 3 under the magnetic attraction of the magnetic suction block 18. The bottom of the ear 3 does not need manual support from the staff, which further facilitates the assembly and locking of the half-tube shell 1. By setting the first sealing strip 19 and the second sealing strip 20, the positioning lower shell 16 and the positioning upper cover 17 are locked on the locking ear 3. The gaps between the positioning lower shell 16, the positioning upper cover 17 and the locking ear 3 will be filled by the positioning lower shell 16 and the positioning upper cover 17 respectively, thereby improving the sealing performance of the positioning lower shell 16 and the positioning upper cover 17 inside, and further improving the protection performance of the positioning lower shell 16 and the positioning upper cover 17 against the hexagonal bolts.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A PE locking half joint with improved longitudinal locking capability, characterized in that: The invention comprises two symmetrically arranged half-tube shells (1), two PE butt-jointed pipes (2) are placed inside the two half-tube shells (1), locking ears (3) are fixedly installed on both sides of the butt joint of the two half-tube shells (1), and the top of each locking ear (3) is provided with a plurality of evenly distributed locking holes (301), copper locking half rings (4) are fixedly installed on the inner walls of both ends of the half-tube shells (1), a plurality of rack-type rubber sleeves (5) evenly distributed along the axis of the half-tube shells (1) are fixedly installed on the inner walls of the half-tube shells (1), and longitudinal locking components are arranged on the side walls of the half-tube shells (1); The longitudinal locking assembly is used to respectively perform hole punching and locking on one end of the two PE butt-jointed pipes (2). The locking assembly comprises two guide screw sleeves (6) respectively fixedly mounted on the two ends of the half-pipe shell (1). The axes of the two guide screw sleeves (6) are perpendicular to the axis of the half-pipe shell (1). One end of the guide screw sleeve (6) extends into the interior of the half-pipe shell (1). A guide screw (7) is screwed into the interior of the guide screw sleeve (6). One end of the guide screw (7) extends to the exterior of the half-pipe shell (1) and is fixedly mounted with an extrusion block (8). A hexagonal head (9) is fixedly mounted on one side of the extrusion block (8) away from the guide screw (7). A drill rod (10) is fixedly mounted on the other end of the guide screw (7). One end of the drill rod (10) is located inside the half-pipe shell (1) and is fixedly mounted with a drill pipe cone head (11). An elastic rubber sleeve (12) is fixedly sleeved on the drill rod (10).

2. A PE locking half joint with improved longitudinal locking capability according to claim 1, characterized in that: A water-swelling rubber sleeve (13) is fixedly sleeved on the top end of the drill rod (10), and the elastic rubber sleeve (12) is located between the water-swelling rubber sleeve (13) and the drill pipe cone head (11).

3. A PE locking half joint with improved longitudinal locking capability according to claim 1, characterized in that: An outer rubber sleeve (14) is movably sleeved on one end of the guide screw (7) located outside the half-tube housing (1), and the outer rubber sleeve (14) is located between the guide screw sleeve (6) and the extrusion block (8).

4. A PE locking half joint with improved longitudinal locking capability according to claim 3, characterized in that: A protective housing (15) adapted to the outer rubber sleeve (14) is movably sleeved on one end of the guide screw (7) located outside the half-tube housing (1), and the protective housing (15) is located on the top of the outer rubber sleeve (14).

5. A PE locking half joint with improved longitudinal locking capability according to claim 1, characterized in that: A positioning lower shell (16) is placed at the bottom of the two locking ears (3) located at the same place, and a receiving groove (1601) adapted to the locking ears (3) is provided inside the positioning lower shell (16), and a plurality of fastening thread grooves (1602) are provided on the inner wall of the positioning lower shell (16), and a positioning upper cover (17) is placed on the top of each of the positioning lower shells (16), and a plurality of clearance grooves (1701) corresponding to the positions of the fastening thread grooves (1602) are provided on the top of the positioning upper cover (17).

6. A PE locking half joint with improved longitudinal locking capability according to claim 5, characterized in that: A plurality of positioning slots (1603) corresponding to the positions of the locking holes (301) are provided inside the receiving slot (1601), and a bolt receiving slot (1604) is provided at the bottom of each of the positioning slots (1603).

7. A PE locking half joint with improved longitudinal locking capability according to claim 5, characterized in that: A plurality of magnetic blocks (18) are fixedly mounted on the inner wall of the positioning lower housing (16).

8. The PE locking half joint with improved longitudinal locking capability according to claim 5, characterized in that: A first sealing strip (19) in contact with the locking ear (3) is fixedly mounted on the inner wall of the positioning lower shell (16), and a plurality of second sealing strips (20) in contact with the locking ear (3) and the positioning lower shell (16) are fixedly mounted on the inner wall of the positioning upper cover (17).

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