High-toughness polyethylene spiral corrugated pipe

Abstract

The invention relates to the technical field of spiral corrugated pipes, in particular to a high-toughness polyethylene spiral corrugated pipe which comprises a son end, a pipe body and a mother end and further comprises a cavity, a buckle, a clamping ring, an extending mechanism, a containing mechanism, an upper clamping plate, an upper clamping groove, a lower clamping plate, a lower clamping groove and a connecting mechanism. The clamping buckle is installed in the female end, the upper clamping plate and the lower clamping plate are matched with the upper clamping groove and the lower clamping groove respectively, the connecting mechanism is connected with the upper clamping plate and the lower clamping plate, and when the clamping ring extrudes the clamping buckle, the stretching-in mechanism is matched with the containing mechanism and drives the upper clamping plate and the lower clamping plate to enter the upper clamping groove and the lower clamping groove respectively. After the upper clamping plate and the lower clamping plate enter the upper clamping groove and the lower clamping groove correspondingly, the connecting mechanism controls the upper clamping plate and the lower clamping plate to extrude the mother end to the son end, the sealing ring controls the limiting block to rotate in the limiting groove to connect the son end with the mother end, the connecting strength of the son end and the mother end can be improved, and the son end and the mother end are prevented from being separated.

Description

Technical Field

[0001] The invention relates to the technical field of spiral corrugated pipes, in particular to a high-toughness polyethylene spiral corrugated pipe. Background Art

[0002] Polyethylene spiral corrugated pipe is a double-wall spiral corrugated pipe with high-density polyethylene as the matrix, with a steel strip coated with adhesive resin on the surface formed into a waveform as the main supporting structure, and wrapped and compounded with polyethylene material to form an integral whole.

[0003] When laying spiral corrugated pipes in mountainous areas, two corrugated pipes are connected with connectors to improve the stability of the connection between the spiral corrugated pipes. However, the connectors and the corrugated pipes are not integrated. When the corrugated pipes are landfilled, gaps will be generated between the connectors and the corrugated pipes due to the impact of the soil. Moreover, as the number of impacts increases, the gap between the connectors and the corrugated pipes becomes larger and larger, and may even cause the connectors to separate from the corrugated pipes, resulting in poor sealing effect at the connection of the corrugated pipes, which is prone to leakage.

[0004] In view of the above problems, the prior art provides some solutions. For example, patent publication number CN109546593A provides a connection structure of a single-walled corrugated pipe. The solution is to set a socket section and a plug section that match each other at both ends of the pipe body of the single-walled corrugated pipe, and set a sleeve for connecting the socket section and the plug section. The rubber ring and the inner wall of the sleeve generate friction resistance, increase the rotation resistance of the socket section and the plug section, and improve the stability of the connection between the socket section and the plug section. The corrugated pipe changes with the change of the mountain slope. When the liquid is transported from the top of the mountain to the bottom of the mountain, the flow rate of the liquid is very Quickly, the gravitational potential energy is converted into kinetic energy in the bellows, which will impact the connection between the socket section and the plug-in section. The connection will be deformed under the impact, which will squeeze the spring and keep the spring in a deformed state for a long time. Over time, the spring will lose its elasticity, and at the same time, there will be long-term friction between the second annular groove and the slider, which will cause the gap between the second annular groove and the slider to increase, thereby reducing the connection strength between the socket section and the plug-in section, and at the same time causing the stability of the connection between the two bellows to decrease, which can easily lead to leakage at the connection.

[0005] Therefore, a high-toughness polyethylene spiral corrugated pipe is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a high-toughness polyethylene spiral corrugated pipe to solve the problem in the prior art that when transporting liquid from the top of the mountain to the bottom of the mountain, the connection between the socket section and the plug-in section is easily impacted by the fast-flowing liquid for a long time, resulting in a gap, thereby reducing the connection stability between the socket section and the plug-in section. By controlling the upper clamping plate and the lower clamping plate to enter the upper clamping groove and the lower clamping groove respectively, and applying pressure to the female end to squeeze the sub-end, and inserting the limit block into the limit groove to connect the sub-end and the female end, and locking the sub-end and the female end, the effect of avoiding the poor stability of the connection between the sub-end and the female end caused by the liquid impacting the pipe body when transporting the liquid is achieved.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A high-toughness polyethylene spiral corrugated pipe comprises a sub-end, a tube body and a female end, and also comprises a chamber, a buckle, a snap ring, an insertion mechanism, a accommodating mechanism, an upper clamping plate, an upper clamping groove, a lower clamping plate, a lower clamping groove and a connecting mechanism, wherein the chamber is opened inside the female end, the snap ring is installed on the outer wall of the sub-end, the buckle is installed inside the female end, the insertion mechanism is connected to the sub-end, the accommodating mechanism is arranged inside the female end, the upper clamping plate and the lower clamping plate are both installed inside the female end, the upper clamping groove and the lower clamping groove are both opened inside the female end, the upper clamping plate and the lower clamping plate are respectively matched with the upper clamping groove and the lower clamping groove, the connecting mechanism is connected with the upper clamping plate and the lower clamping plate, when the sub-end is inserted into the female end, the buckle squeezes the buckle, and the insertion mechanism cooperates with the accommodating mechanism and drives the upper clamping plate and the lower clamping plate to enter the upper clamping groove and the lower clamping groove respectively, after the upper clamping plate and the lower clamping plate enter the upper clamping groove and the lower clamping groove respectively, the connecting mechanism controls the upper clamping plate and the lower clamping plate to squeeze the female end toward the sub-end.

[0009] In the above scheme, the sub-end of a spiral corrugated tube is inserted into the female end of another spiral corrugated tube, and the clamping ring of the sub-end squeezes the buckle of the female end. When squeezed, the buckle moves away from the spiral corrugated tube and drives the insertion mechanism and the accommodating mechanism to operate, so that the upper clamping plate can be clamped into the upper clamping groove, and the lower clamping plate can be clamped into the lower clamping groove. Under the action of pressure, the sub-end and the female end can be tightly fitted, and then the connection mechanism can be driven to operate, thereby improving the tightness of the connection between the sub-end and the female end.

[0010] Optionally, when the sub-end is connected to the mother-end, the sub-end can be directly inserted into the mother-end without limiting the insertion depth, or the insertion depth of the sub-end can be limited when the sub-end is inserted into the mother-end to ensure that the depth of each sub-end inserted into the mother-end remains consistent. If the insertion depth of the sub-end is not limited, it will easily lead to inconsistent connection strengths between each sub-end and the mother-end. When the insertion depth of the sub-end is shallow, the connection strength between the sub-end and the mother-end will be reduced. When the insertion depth of the sub-end is deep, it will easily lead to a collision between the sub-end and the mother-end, which will cause deformation at the connection between the sub-end and the mother-end, affecting the normal use of the spiral corrugated tube. Therefore, it is necessary to limit the insertion depth of the sub-end.

[0011] Preferably, the extending mechanism includes a sealing ring, a mounting groove, a sealing strip, an annular groove, a connecting spring, a limit block and an operating hole, the sealing ring is installed on the outer wall of the sub-end, the mounting groove is opened on the outer periphery of the sealing ring, the sealing strip is installed in the mounting groove, the annular groove is arranged on the outer wall of the sub-end, the annular groove cooperates with the sealing ring, the connecting spring is installed between the sealing ring and the annular groove, the limit block is installed on one end of the sealing ring, and the operating hole is circumferentially opened at one end of the sealing ring.

[0012] In the above scheme, the sealing ring will enter the sealing groove as it moves with the sub-end, and the sealing strip will also enter the sealing groove at the same time. The sealing strip fits the sealing groove, which can improve the sealing when the sub-end is connected to the mother end. At the same time, the sealing ring is limited by the sealing groove, which can prevent the sub-end from going too deep into the mother end, thereby ensuring that the connection depth of each sub-end and the mother end remains consistent.

[0013] Preferably, the high peak of the sealing strip faces the female end, the low peak of the sealing strip faces the female end, and the sealing strip is made of rubber material.

[0014] In the above solution, the fit between the sealing ring and the sealing groove can be improved, thereby improving the sealing effect of the device.

[0015] Preferably, the accommodating mechanism includes a sealing groove and a limiting groove, the sealing groove is arranged at one end of the female end, the sealing ring cooperates with the sealing groove, the limiting groove is connected to the sealing groove, and the limiting groove is arranged inside the female end, the limiting block cooperates with the limiting groove, and the limiting block and the limiting groove are both circumferentially arranged.

[0016] In the above scheme, the sub-end can be locked after being inserted into the female end, which can prevent the axial force caused by the liquid impacting the connection from generating pulling force on the sub-end and the female end, and can avoid the sub-end and the female end from loosening when connected. At the same time, the rotation of the sealing ring can be controlled by setting the working hole, so that the limit block and the limit groove can be controlled to separate or clamp, and the sub-end and the female end cannot be separated when no one is working, which can improve the stability of the connection between the sub-end and the female end.

[0017] Preferably, the opening of the limiting groove and the limiting block are both arranged in a "convex" shape, and the height value of the inner wall of the limiting groove is consistent with the height value of the limiting block.

[0018] In the above solution, by setting the limiting groove space, the limiting block can be clamped, and the limiting block and the limiting groove can be prevented from being separated.

[0019] Optionally, when connecting the sub-end and the mother-end, the sub-end can be inserted into the mother-end, and then the tightness between the sub-end and the mother-end can be improved by a seal. The fit between the sub-end and the mother-end can also be improved by extrusion, and then the sealing can be further improved by a seal. During landfill, the soil from above will impact the connection between the sub-end and the mother-end. If the sub-end and the mother-end are connected only by a seal, not only will the sealing between the sub-end and the mother-end be limited, but the connection between the sub-end and the mother-end will also become loose, thereby affecting the sealing. Therefore, it is not advisable to directly insert the sub-end into the mother-end and then seal it with a seal.

[0020] Preferably, the connecting mechanism includes a positioning column, a ratchet, a spur gear, a rack, a slider, a tension spring, an oblique block, a vertical rod, a lever, a torsion spring and a connecting rod. The positioning column is installed on the inner wall of the chamber, the ratchet cooperates with the positioning column, the spur gear is connected to the ratchet, the rack is meshed with the spur gear, a slide groove is provided on the inner wall of the chamber, the slider is installed at one end of the rack and cooperates with the slide groove, the tension spring is installed between the slider and the slide groove, the oblique block is installed at one end of the rack, the vertical rod cooperates with the oblique block, the lever is installed at the bottom end of the vertical rod, the torsion spring is connected to the lever, the connecting rod is connected to the lever, and the vertical rod and the connecting rod are symmetrical with the lever as the center.

[0021] In the above scheme, when the retaining ring squeezes the buckle, the ratchet is controlled to rotate unidirectionally through the positioning column, and then the spur gear drives the rack to move while driving the inclined block to move horizontally, and then the vertical rod is squeezed, thereby driving the vertical rod to descend. Since the vertical rod and the connecting rod are connected by a lever, the vertical rod and the connecting rod can move towards or in the opposite direction. When the vertical rod and the connecting rod move, they can drive the upper clamping plate and the lower clamping plate to move at the same time, and enter the upper clamping groove and the lower clamping groove respectively.

[0022] Preferably, a gently inclined portion is provided on one side of the bottom end of the buckle, a steeply inclined portion is provided on the other side of the bottom end of the buckle, an arc-shaped groove is provided on one side of the buckle, the curvature of the arc-shaped groove is consistent with the curvature of the ratchet, an extrusion inclined portion is provided on one end of the snap ring, and an arc-shaped portion is provided on the other end of the clamping block.

[0023] In the above scheme, the insertion of the sub-end into the female end can be smoother, and at the same time, the sub-end and the female end can be prevented from being detached due to a little external force after being connected. When the sub-end or the female end is to be replaced, it is only necessary to apply a greater force to the sub-end or the female end than when installing it, which can not only prevent the sub-end or the female end from being detached, but also facilitate the replacement of the sub-end or the female end.

[0024] Preferably, the spur gear comprises long teeth and short teeth, and a plurality of the long teeth and the short teeth are circumferentially arranged, and the arc length between two adjacent long teeth is consistent with the height of the gently inclined portion.

[0025] In the above scheme, the spur gear can be controlled to intermittently mesh with the rack. First, the long teeth pull the rack and pull the rack toward the spur gear, so that the vertical rod can be pushed down through the inclined block. When the sub-end and the mother-end begin to connect, the short teeth gradually mesh with the rack. When the sub-end and the mother-end are separated, the spur gear is separated from the rack.

[0026] Preferably, an inclined groove is provided inside the vertical rod, the inclined groove cooperates with an inclined block, the inclined surface of the inclined block faces the upper clamping plate, the inclined surface of the inclined groove faces the end of the vertical rod away from the lever, and the maximum height of the inclined block is half of the maximum height of the inclined groove.

[0027] In the above scheme, the vertical rod can be squeezed when the inclined block moves to control the vertical rod to move downward, thereby driving the upper clamping plate and the lower clamping plate to move.

[0028] Preferably, the vertical rod and the connecting rod have the same specifications, and the side sections of the upper clamping plate, the lower clamping plate, the vertical rod and the connecting rod are in the shape of an “I”.

[0029] In the above scheme, the connection strength between the vertical rod and the connecting rod can be improved, and the sealing performance of the upper clamping plate and the lower clamping plate to the upper clamping groove and the lower clamping groove can be improved.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The upper card plate and the lower card plate are tightly connected with the upper card slot and the lower card slot respectively, which can not only improve the fit between the sub-end and the female end, but also improve the sealing between the sub-end and the female end. Due to the existence of the ratchet, the sub-end and the female end can only move in one direction when connected, so the sub-end and the female end will not loosen due to the impact of the liquid when connected.

[0032] 2. After the sub-end is inserted into the female end, the sealing ring is controlled to rotate to drive the limit block into the limit groove, so that the sealing ring and the female end can be tightly connected, the strength of the connection between the sub-end and the female end can be improved, and the eddy current generated when conveying liquid can be prevented from impacting the sub-end and the female end, and the connection between the sub-end and the female end can be prevented from being loosened due to the centrifugal force of the eddy current. At the same time, the axial force on the sub-end and the female end can be reduced, and the stability of the connection between the sub-end and the female end can be improved.

[0033] 3. The chamber is set to be M-shaped. When the sub-end is inserted into the female end, the female end wraps the sub-end. When the female end is slightly deformed by impact, the sub-end will also deform synchronously with the female end. With the cooperation of the upper and lower card plates, the sub-end and the female end are always in a fitted state, thereby avoiding the generation of gaps. Moreover, the buckle and the clamping ring cooperate with each other, which can facilitate the installation and disassembly of the sub-end and the female end. The insertion depth of the sub-end can be set by setting the sealing ring and the sealing groove, which can avoid inconsistent sealing performance caused by shallow or deep insertion of the sub-end. By ensuring the consistency of the insertion depth, the sealing of every two spiral bellows can be guaranteed to be consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the female end and the female end of the present invention from being unconnected to being connected;

[0035] Figure 2 It is a schematic diagram of a partial cross-sectional three-dimensional structure of the female end of the present invention;

[0036] Figure 3 For the present invention Figure 2 A is an enlarged schematic diagram;

[0037] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the female end side view and the female end side view of the present invention;

[0038] Figure 5 It is a schematic diagram of the main cross-sectional structure of the present invention after the sub-end and the female end are connected;

[0039] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of B;

[0040] Figure 7 It is a cross-sectional three-dimensional structural schematic diagram of the connection mechanism of the present invention;

[0041] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of C;

[0042] Fig. 9 It is a schematic diagram of the front cross-sectional structure of the connecting mechanism of the present invention;

[0043] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure of D in the figure.

[0044] In the figure: 1, sub-end; 2, tube body; 3, female end; 4, chamber; 5, buckle; 6, snap ring; 71, insertion mechanism; 711, sealing ring; 712, mounting groove; 713, sealing strip; 714, annular groove; 715, connecting spring; 716, limit block; 717, working hole; 72, accommodating mechanism; 721, sealing groove; 722, limit groove; 8, upper clamping plate; 9, upper clamping groove; 10, lower clamping plate; 11, lower clamping groove; 12, connecting mechanism Structure; 121, positioning column; 122, ratchet; 123, spur gear; 1231, long teeth; 1232, short teeth; 124, rack; 125, slider; 126, tension spring; 127, inclined block; 128, vertical rod; 129, lever; 1210, torsion spring; 1211, connecting rod; 1212, slide groove; 13, gently inclined portion; 14, steep inclined portion; 15, arc groove; 16, extrusion inclined portion; 17, arc portion; 18, inclined groove. DETAILED DESCRIPTION

[0045] 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. However, the embodiments described below are only some embodiments of the present invention, not all of them. If other embodiments of ordinary technicians in this field are obtained without making creative work, they all belong to the protection scope of the present invention.

[0046] Reference Figures 1 to 7 and Fig. 9A high-toughness polyethylene spiral corrugated pipe includes a sub-end 1, a pipe body 2 and a female end 3, and also includes a chamber 4, a buckle 5, a clamping ring 6, an insertion mechanism 71, a accommodating mechanism 72, an upper clamping plate 8, an upper clamping groove 9, a lower clamping plate 10, a lower clamping groove 11 and a connecting mechanism 12. The chamber 4 is opened inside the female end 3. Through the setting of the chamber 4, the above structure can be installed and a running space can be provided for the movement of the above structure. The clamping ring 6 is installed on the outer wall of the sub-end 1, and the buckle 5 is installed inside the female end 3. Through the cooperation between the clamping ring 6 and the buckle 5, the sub-end 1 and the female end 3 can be connected, and at the same time, the sub-end 1 and the female end 3 can be prevented from being separated. A slow-sloping portion 13 is provided on one side of the bottom end of the buckle 5 A steep slope 14 is provided on the other side of the bottom end of the buckle 5. By providing the gentle slope 13, the buckle 6 can be staggered with a relatively small force when squeezing the buckle 5, which can improve the efficiency of connecting the sub-end 1 and the female end 3. By providing the steep slope 14, the buckle 6 can be abutted against the buckle 5. When the sub-end 1 and the female end 3 need to be replaced, the sub-end 1 or the female end 3 is pulled with a greater force, so that the sub-end 1 and the female end 3 can be separated and replaced. An arc groove 15 is provided on one side of the buckle 5. The arc groove 15 is provided to avoid collision between the buckle 5 and the ratchet 122 when the ratchet 122 is pushed to rotate, so as to avoid obstruction to the rotation of the ratchet 122. An extrusion slope is provided at one end of the buckle 6 16, the other end of the buckle 5 is provided with an arc portion 17. Through the above-mentioned arrangement, it is possible to save effort when the snap ring 6 squeezes the snap ring 5, and the misalignment between the snap ring 6 and the snap ring 5 can be smoother. The insertion mechanism 71 is connected to the sub-end 1, and the accommodating mechanism 72 is arranged inside the female end 3. The insertion mechanism 71 cooperates with the accommodating mechanism 72. Through the cooperation between the insertion mechanism 71 and the accommodating mechanism 72, the depth of the sub-end 1 inserted into the female end 3 can be controlled, and the connection area of ​​the sub-end 1 and the female end 3 can be kept consistent. The upper card plate 8 and the lower card plate 10 are both installed inside the female end 3, and the upper card groove 9 and the lower card groove 11 are both opened inside the female end 3. The upper card plate 8 and the lower card plate 10 cooperate with the upper card groove 9 and the lower card groove 11 respectively. The card plate 8 and the lower card plate 10 cooperate with each other to squeeze the sub-end 1 and the female end 3, ensure that the sub-end 1 and the female end 3 are connected more tightly, and improve the sealing. The connecting mechanism 12 is connected to the upper card plate 8 and the lower card plate 10. By setting the connecting mechanism 12, the stability and sealing of the connection between the sub-end 1 and the female end 3 can be further improved. When the sub-end 1 is inserted into the female end 3, the retaining ring 6 squeezes the buckle 5, and the extending mechanism 71 cooperates with the accommodating mechanism 72 and drives the upper card plate 8 and the lower card plate 10 to enter the upper card groove 9 and the lower card groove 11 respectively. After the upper card plate 8 and the lower card plate 10 enter the upper card groove 9 and the lower card groove 11 respectively, the connecting mechanism 12 controls the upper card plate 8 and the lower card plate 10 to squeeze the female end 3 toward the sub-end 1.

[0047] As an embodiment of the present invention, refer to Figure 4 , Figure 6 and Fig. 9, the insertion mechanism 71 includes a sealing ring 711, a mounting groove 712, a sealing strip 713, an annular groove 714, a connecting spring 715, a limit block 716 and an operating hole 717. The sealing ring 711 is installed on the outer wall of the sub-end 1. When the sub-end 1 and the female end 3 are connected, sealing grease is applied to the end of the sealing ring 711 close to the sealing groove 721, which can not only improve the tightness of the connection between the sub-end 1 and the female end 3 and improve the sealing effect, but also facilitate the rotation of the sealing ring 711 when the sub-end 1 and the female end 3 are separated, avoiding a large friction between the sealing ring 711 and the sealing groove 721. The mounting groove 712 is opened on the outer periphery of the sealing ring 711, and the sealing strip 713 is installed on the mounting In the groove 712, by setting the sealing strip 713, the sealing performance of the connection between the sub-end 1 and the female end 3 can be improved. The peak of the sealing strip 713 faces the female end 3, and the low peak of the sealing strip 713 faces the sub-end 1. The sealing strip 713 is made of rubber material. Through the above-mentioned setting, the air tightness and water tightness of the chamber 4 can be improved. At the same time, the impact force can be reduced when the female end 3 is hit, and the toughness of the female end 3 can be improved. The annular groove 714 is set on the outer wall of the sub-end 1. The annular groove 714 cooperates with the sealing ring 711. The width of the annular groove 714 is greater than the width of the sealing ring 711. Through the setting of the annular groove 714, space can be provided for the movement of the sealing ring 711, which can facilitate the sealing ring The rotation of 711, the connecting spring 715 is installed between the sealing ring 711 and the annular groove 714. The connecting spring 715 is provided to make the sealing ring 711 elastic, so that it can be reset when the sealing ring 711 is separated from the female end 3, so that it can be convenient for the next use. The limit block 716 is installed at one end of the sealing ring 711, and the working hole 717 is circumferentially opened at one end of the sealing ring 711. Through the above arrangement, it is convenient to manually work on the sealing ring 711, and the rotation of the sealing ring 711 can be controlled, so that the position of the limit block 716 in the limit groove 722 can be controlled to be adjusted, so that the connection or separation of the limit block 716 and the limit groove 722 can be realized. When the limit block 716 is connected to the limit groove 722, the sub-end 1 is connected to the female end 3, and can be locked after the sub-end 1 and the female end 3 are connected, which can prevent the sub-end 1 and the female end 3 from loosening due to the impact of liquid. When the limit block 716 is separated from the limit groove 722, the sub-end 1 or the female end 3 can be pulled by pulling force, and the sub-end 1 and the female end 3 can be separated, so that the sub-end 1 or the female end 3 can be replaced. The connecting spring 715 and the sealing ring 711 are only fitted but not fixedly connected. When the limit block 716 moves in the limit groove 722, it drives the sealing ring 711 to rotate, but does not cause the connecting spring 715 to twist.

[0048] As an embodiment of the present invention, refer to Figure 4 and Figure 6The accommodating mechanism 72 includes a sealing groove 721 and a limiting groove 722. The sealing groove 721 is arranged at one end of the female end 3. The sealing ring 711 cooperates with the sealing groove 721. The sealing ring 711 and the sealing groove 721 cooperate with each other to improve the sealing performance of the connection between the sub-end 1 and the female end 3, and at the same time, the depth of the sub-end 1 extending into the female end 3 can be controlled. The limiting groove 722 is connected to the sealing groove 721, and the limiting groove 722 is arranged inside the female end 3. The opening of the limiting groove 722 and the limiting block 716 are both arranged in a "convex" shape. The height value of the inner wall of the limiting groove 722 is consistent with the height value of the limiting block 716. The limiting groove 722 includes an inlet end e and a clamping end f. The height value of the inlet end e is greater than the height value of the clamping end f. value, so as to facilitate the limit block 716 to enter the limit groove 722, and at the same time prevent the limit block 716 from falling off between the limit groove 722 when the clamping end f, through the above arrangement, in order to improve the fit between the limit block 716 and the limit groove 722, can prevent the limit block 716 from shaking after entering the limit groove 722, the limit block 716 cooperates with the limit groove 722, and the limit block 716 and the limit groove 722 are both circumferentially arranged, through the above arrangement, the sealing ring 711 can be connected to the female end 3, so that the connection between the sub-end 1 and the female end 3 can be realized, the strength of the connection between the sub-end 1 and the female end 3 can be improved, and the sub-end 1 and the female end 3 can be prevented from separating under the impact of water flow.

[0049] As an embodiment of the present invention, refer to Figure 8 and Fig.10The connecting mechanism 12 includes a positioning column 121, a ratchet 122, a spur gear 123, a rack 124, a slider 125, a tension spring 126, an inclined block 127, a vertical rod 128, a lever 129, a torsion spring 1210 and a connecting rod 1211. The positioning column 121 is installed on the inner wall of the chamber 4. The ratchet 122 cooperates with the positioning column 121. Through the setting of the positioning column 121, it can be ensured that the ratchet 122 always rotates in one direction. The curvature of the arc groove 15 is consistent with the curvature of the ratchet 122. Through the above setting, it can be avoided that the buckle 5 hinders the rotation of the ratchet 122 when being squeezed. The curvature of the arc groove 15 is consistent with the curvature of the ratchet 122. The spur gear 123 is connected to the ratchet 122. Through the setting of the ratchet 122, It can drive the spur gear 123 to rotate. The spur gear 123 includes long teeth 1231 and short teeth 1232. There are multiple long teeth 1231 and short teeth 1232 arranged circumferentially. The arc length between two adjacent long teeth 1231 is consistent with the height value of the gently inclined portion 13. Through the above arrangement, it can be ensured that the rack 124 can reciprocate, so that the sub-end 1 or the female end 3 can be replaced. The rack 124 is meshed with the spur gear 123. The inner wall of the chamber 4 is provided with a slide groove 1212. Through the arrangement of the slide groove 1212, the rack 124 can be easily moved on a specified line. The slider 125 is installed at one end of the rack 124 and cooperates with the slide groove 1212. The tension spring 126 is installed between the slider 125 and the slide groove 1212. By setting the stretch spring 126, the short tooth 1232 can be reset under the action of elasticity when it contacts the rack 124, so that the sub-end 1 or the female end 3 can be replaced conveniently. The inclined block 127 is installed at one end of the rack 124, the vertical rod 128 cooperates with the inclined block 127, the lever 129 is installed at the bottom end of the vertical rod 128, and the torsion spring 1210 is connected to the lever 129. By setting the torsion spring 1210, the upper card plate 8 and the lower card plate 10 can be controlled to be separated from the upper card slot 9 and the lower card slot 11 respectively when the sub-end 1 or the female end 3 is replaced, so as to facilitate the installation of the new sub-end 1 or the female end 3. The connecting rod 1211 is connected to the lever 129. When the vertical rod 128 moves toward the inner circle of the female end 3, it can be moved by the lever 129 The connecting rod 1211 is driven to move in the opposite direction of the vertical rod 128, so that the upper card plate 8 and the lower card plate 10 can be driven to enter the upper card slot 9 and the lower card slot 11 respectively at the same time, and the sub-end 1 and the female end 3 can be pressed, so as to improve the connection tightness between the sub-end 1 and the female end 3, and prevent the sub-end 1 and the female end 3 from loosening. The vertical rod 128 and the connecting rod 1211 are symmetrical with the lever 129 as the center. Through the above arrangement, the vertical rod 128 and the connecting rod 1211 can be guaranteed to move synchronously, and the specifications of the vertical rod 128 and the connecting rod 1211 are consistent. The side sections of the upper card plate 8, the lower card plate 10, the vertical rod 128 and the connecting rod 1211 are in the shape of an "I". Through the above arrangement, the strength between the sub-end 1 and the female end 3 can be improved.It can prevent the sub-end 1 and the female end 3 from being deformed due to external collision, and at the same time can reduce the damage caused by the impact of liquid on the connection between the sub-end 1 and the female end 3. The vertical rod 128 is provided with an inclined groove 18 inside, and the inclined groove 18 cooperates with the inclined block 127. The inclined surface of the inclined block 127 faces the upper clamping plate 8, and the inclined surface of the inclined groove 18 faces the end of the vertical rod 128 away from the lever 129. The maximum height of the inclined block 127 is half of the maximum height of the inclined groove 18. Through the above arrangement, when the rack 124 moves toward the ratchet 122, the inclined block 127 can be driven to squeeze the vertical rod 128, so that the vertical rod 128 can be controlled to move toward the inner circle of the female end 3.

[0050] Working principle: When in use, the user inserts the sub-end 1 into the female end 3, the clamping ring 6 squeezes the buckle 5, and under the action of the connecting mechanism 12, the upper clamping plate 8 is driven to gradually enter the upper clamping groove 9, and the lower clamping plate 10 is driven to gradually enter the lower clamping groove 11. When the upper clamping plate 8 and the lower clamping plate 10 are completely fitted with the upper clamping groove 9 and the lower clamping groove 11 respectively, the female end 3 can be squeezed toward the sub-end 1 by the upper clamping plate 8 and the lower clamping plate 10, which can improve the sealing between the upper clamping plate 8 and the lower clamping plate 10 and the upper clamping groove 9 and the lower clamping groove 11. The upper clamping plate 8 and the lower clamping plate 10 squeeze the sub-end 1 and the female end 3, which can improve the connection tightness between the sub-end 1 and the female end 3 and prevent the existence of a gap when the sub-end 1 and the female end 3 are connected. The sealing ring 711 fits with the sealing groove 721 to control the insertion depth of the sub-end 1 in the female end 3.

[0051] Specifically, after the sub-end 1 is inserted into the female end 3, the snap ring 6 squeezes the buckle 5 in turn. When the buckle 5 is squeezed, it extends toward the outer ring of the female end 3 and pushes the ratchet 122 to rotate. When the ratchet 122 rotates, it can drive the spur gear 123 to rotate, and the rack 124 is driven to move under the action of the alternation of the long teeth 1231 and the short teeth 1232. When the rack 124 moves, it moves in the slide groove 1212 through the slider 125, and compresses the tension spring 126, and can drive the inclined The block 127 moves in the inclined groove 18 in the vertical rod 128, and the inclined block 127 squeezes the vertical rod 128, thereby controlling the vertical rod 128 to move toward the inner circle of the female end 3. When the vertical rod 128 moves, the connecting rod 1211 is driven by the lever 129 to move in the opposite direction. When the lever 129 moves, it drives the torsion spring 1210 to rotate and store force, and at the same time, the upper card plate 8 and the lower card plate 10 can be controlled to enter the upper card slot 9 and the lower card slot 11 respectively, and the upper card plate 8 and the lower card plate 10 move toward the sub-end 1 The female end 3 is squeezed forward to improve the tightness of the connection between the sub-end 1 and the female end 3. After the upper clamping plate 8 and the lower clamping plate 10 enter the upper clamping groove 9 and the lower clamping groove 11 respectively, the sealing ring 711 enters the sealing groove 721 and fits the female end 3. The staff inserts the workpiece into the working hole 717, and then controls the sealing ring 711 to rotate through the workpiece. After the limit block 716 rotates with the sealing ring 711 to align with the limit groove 722, the sealing ring 711 is pushed to push the limit block 716 into the limit groove 722. 2, and then rotate the sealing ring 711 again, which can drive the limit block 716 to rotate in the limit groove 722, and then the limit groove 722 is specially set to block the limit block 716. When the limit block 716 is tightly fitted with the limit groove 722, the sealing ring 711 is tightly fitted with the sealing groove 721, which can prevent the sub-end 1 and the female end 3 from loosening. After the installation is completed, a circle of sealing layer is wrapped around the outer wall of the sub-end 1 and the female end 3, and heated to achieve fitting;

[0052] When the sub-end 1 or the female end 3 needs to be replaced, the sealing ring 711 is reversed by controlling the workpiece, thereby controlling the limit block 716 to move from one end of the limit groove 722 to the other end, and then the sealing ring 711 is pulled to pull the limit block 716 out of the limit groove 722, and then the sub-end 1 or the female end 3 is pulled with a greater force than during installation, the retaining ring 6 squeezes the buckle 5 and drives the ratchet 122 to rotate again, but the spur gear 123 and the rack 124 will be separated, and under the action of the tension spring 126, the rack 124 is controlled to reset, thereby controlling the above structure to move in the opposite direction, so as to facilitate the replacement and installation of the new sub-end 1 or the female end 3.

[0053] Although the embodiments of the present invention have been described in detail in conjunction with the accompanying drawings, it is apparent to those skilled in the art that changes, modifications, substitutions and deformations may be made to these embodiments without departing from the principles and spirit of the present invention. The appended claims and their equivalents define the scope of the present invention.

Claims

1. A high-toughness polyethylene spiral corrugated pipe, comprising a male end (1), a pipe body (2) and a female end (3), characterized in that: The invention also comprises a chamber (4), a buckle (5), a snap ring (6), an insertion mechanism (71), a receiving mechanism (72), an upper card plate (8), an upper card slot (9), a lower card plate (10), a lower card slot (11) and a connecting mechanism (12); the chamber (4) is opened inside the female end (3); the snap ring (6) is installed on the outer wall of the sub-end (1); the buckle (5) is installed inside the female end (3); the insertion mechanism (71) is connected to the sub-end (1); the receiving mechanism (72) is arranged inside the female end (3); the upper card plate (8) and the lower card plate (10) are both installed inside the female end (3); the upper card slot (9) and the lower card slot (11) are both opened inside the female end (3); The upper card plate (8) and the lower card plate (10) are respectively matched with the upper card slot (9) and the lower card slot (11); the connecting mechanism (12) is connected with the upper card plate (8) and the lower card plate (10); when the sub-end (1) is inserted into the female end (3), the clamping ring (6) squeezes the buckle (5); and the insertion mechanism (71) cooperates with the accommodating mechanism (72) and drives the upper card plate (8) and the lower card plate (10) to enter the upper card slot (9) and the lower card slot (11) respectively; after the upper card plate (8) and the lower card plate (10) enter the upper card slot (9) and the lower card slot (11) respectively, the connecting mechanism (12) controls the upper card plate (8) and the lower card plate (10) to squeeze the female end (3) toward the sub-end (1).

2. The high-toughness polyethylene spiral corrugated pipe according to claim 1, characterized in that: The insertion mechanism (71) comprises a sealing ring (711), a mounting groove (712), a sealing strip (713), an annular groove (714), a connecting spring (715), a limiting block (716) and an operating hole (717); the sealing ring (711) is mounted on the outer wall of the sub-end (1); the mounting groove (712) is arranged on the outer circumference of the sealing ring (711); the sealing strip (713) is mounted in the mounting groove (712); the annular groove (714) is arranged on the outer wall of the sub-end (1); the annular groove (714) cooperates with the sealing ring (711); the connecting spring (715) is mounted between the sealing ring (711) and the annular groove (714); the limiting block (716) is mounted on one end of the sealing ring (711); and the operating hole (717) is circumferentially arranged on one end of the sealing ring (711).

3. The high-toughness polyethylene spiral corrugated pipe according to claim 2, characterized in that: The high peak of the sealing strip (713) faces the female end (3), and the low peak of the sealing strip (713) faces the female end (1). The sealing strip (713) is made of rubber material.

4. The high-toughness polyethylene spiral corrugated pipe according to claim 3, characterized in that: The accommodating mechanism (72) comprises a sealing groove (721) and a limiting groove (722); the sealing groove (721) is arranged at one end of the female end (3); the sealing ring (711) cooperates with the sealing groove (721); the limiting groove (722) is arranged in communication with the sealing groove (721); and the limiting groove (722) is arranged inside the female end (3); the limiting block (716) cooperates with the limiting groove (722); and the limiting block (716) and the limiting groove (722) are both arranged circumferentially.

5. The high-toughness polyethylene spiral corrugated pipe according to claim 4, characterized in that: The opening of the limiting groove (722) and the limiting block (716) are both arranged in a "convex" shape, and the height value of the inner wall of the limiting groove (722) is consistent with the height value of the limiting block (716).

6. The high-toughness polyethylene spiral corrugated pipe according to claim 1, characterized in that: The connecting mechanism (12) comprises a positioning column (121), a ratchet (122), a spur gear (123), a rack (124), a slider (125), a tension spring (126), an inclined block (127), a vertical rod (128), a lever (129), a torsion spring (1210) and a connecting rod (1211); the positioning column (121) is installed on the inner wall of the chamber (4); the ratchet (122) cooperates with the positioning column (121); the spur gear (123) is connected to the ratchet (122); the rack (124) meshes with the spur gear (123); and a sliding groove (1212) is provided on the inner wall of the chamber (4). ), the slider (125) is installed at one end of the rack (124) and cooperates with the slide groove (1212), the tension spring (126) is installed between the slider (125) and the slide groove (1212), the inclined block (127) is installed at one end of the rack (124), the vertical rod (128) cooperates with the inclined block (127), the lever (129) is installed at the bottom end of the vertical rod (128), the torsion spring (1210) is connected to the lever (129), the connecting rod (1211) is connected to the lever (129), and the vertical rod (128) and the connecting rod (1211) are symmetrical with the lever (129) as the center.

7. The high-toughness polyethylene spiral corrugated pipe according to claim 6, characterized in that: A gently inclined portion (13) is provided on one side of the bottom end of the buckle (5), a steeply inclined portion (14) is provided on the other side of the bottom end of the buckle (5), an arc-shaped groove (15) is provided on one side of the buckle (5), and the curvature of the arc-shaped groove (15) is consistent with the curvature of the ratchet (122), an extrusion inclined portion (16) is provided on one end of the snap ring (6), and an arc-shaped portion (17) is provided on the other end of the buckle (5).

8. The high-toughness polyethylene spiral corrugated pipe according to claim 7, characterized in that: The spur gear (123) comprises long teeth (1231) and short teeth (1232), and a plurality of the long teeth (1231) and the short teeth (1232) are arranged in a circumferential direction.

9. The high-toughness polyethylene spiral corrugated pipe according to claim 8, characterized in that: An inclined groove (18) is provided inside the vertical rod (128), and the inclined groove (18) cooperates with the inclined block (127). The inclined surface of the inclined block (127) faces the upper clamping plate (8), and the inclined surface of the inclined groove (18) faces the end of the vertical rod (128) away from the lever (129). The maximum height value of the inclined block (127) is half of the maximum height value of the inclined groove (18).

10. The high-toughness polyethylene spiral corrugated pipe according to claim 9, characterized in that: The vertical rod (128) and the connecting rod (1211) have the same specifications, and the side cross-sections of the upper clamping plate (8), the lower clamping plate (10), the vertical rod (128) and the connecting rod (1211) are in the shape of an "I".

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