A waterproof corrugated pipe joint

Abstract

The utility model provides a waterproof bellows joint, including the first pipe joint and the second pipe joint of symmetrical arrangement, the left and right two ends of the first pipe joint and the second pipe joint are respectively set up and place the slot, the intercommunication hole that is respectively set up on the first pipe joint and the second pipe joint, the sealing ring that is respectively set up on the first pipe joint and the second pipe joint, set up between the first pipe joint and the second pipe joint's fixed establishment, through the elastic extrusion of sealing ring and the wave trough of bellows, to realize the sealing between the joint and bellows, because the elastic extrusion sealing between sealing ring and the wave trough of bellows, can reduce the phenomenon of the gap that uneven pressure generates, after connecting, the phenomenon of not easy to appear the water leakage between two bellows, can further improve the sealing effect after the connection of two bellows.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe joint technology, specifically to a waterproof corrugated pipe joint. Background Technology

[0002] An annular bellows is a flexible pipe element with multiple concentric circular corrugations (alternating crests and troughs). Its core feature lies in its unique waveform structure, where the crests and troughs form complete rings, resembling a circle composed of multiple mountain ranges. Each wave can deform independently and uniformly, exhibiting excellent performance, especially in axial compression and tension.

[0003] Corrugated pipes are commonly found in homes and construction sites. They are usually made of plastics such as PVC or PE. The corrugated shape is mainly to increase flexibility and pressure resistance, so that they will not break when bent and form a blockage. They are also not easy to collapse when slightly compressed by soil. They are often used for washing machine drain pipes, kitchen sink drain pipes, underground drainage pipes in buildings, etc.

[0004] When the length of the drainage corrugated pipe is insufficient, it is usually necessary to connect the two corrugated pipes. Traditionally, clamps are commonly used to lock the two corrugated pipes together. However, the pressure applied by the clamps to the two corrugated pipes is uneven, and water leakage is likely to occur between the two corrugated pipes, making it difficult to further improve the sealing effect after the two corrugated pipes are connected. Utility Model Content

[0005] The purpose of this utility model is to provide a waterproof corrugated pipe joint in response to the defects and deficiencies of the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a waterproof corrugated pipe joint, comprising a first pipe head and a second pipe head symmetrically arranged, placement slots for placing corrugated pipes respectively opened at the left and right ends of the first pipe head and the second pipe head, connecting holes respectively opened on the first pipe head and the second pipe head and respectively connected to the placement slots, sealing rings respectively disposed on the first pipe head and the second pipe head and located in the placement slots for elastically pressing the corrugated pipe at the trough when the corrugated pipe is placed in the placement slots to seal the gap between the corrugated pipe and the first pipe head and the second pipe head, and a fixing mechanism disposed between the first pipe head and the second pipe head for fixing the first pipe head and the second pipe head when the corrugated pipe is placed in the placement slots.

[0007] A further improvement is that the first and second pipe heads are provided with auxiliary sealing plates for sealing the connection end of the first and second pipe heads after the fixing mechanism has fixed the first and second pipe heads together.

[0008] A further improvement is made to the fixing mechanism, which includes a first connector respectively disposed at the upper and lower ends of the first pipe head, a second connector respectively disposed at the upper and lower ends of the second pipe head, a locking slot opened on the end face of the first connector, a locking protrusion disposed on the end face of the second connector and in clearance fit with the locking slot, a locking round rod disposed on the first connector and located in the locking slot, a circular opening disposed on the locking protrusion for engaging with the locking round rod, and an inlet / outlet opening opened on the side end face of the locking protrusion and communicating with the circular opening for allowing the locking round rod to enter or leave the circular opening.

[0009] A further improvement is that the side end face of the engaging protrusion is provided with an inclined surface that facilitates the engaging round rod to be engaged into the inlet and outlet opening, and the inclined surface is connected to the inlet and outlet opening.

[0010] A further improvement is that the engaging protrusion has a chamfered surface that facilitates the engagement of the round rod as it enters and exits the opening through the circular opening.

[0011] A further improvement is that the side end faces of the first connector and the second connector are provided with extension plates, and the extension plates have pull holes.

[0012] A further improvement is that the sealing ring has a deformation cavity to enhance the deformation capacity of the sealing ring end, so that the sealing ring fits tightly against the bellows.

[0013] A further improvement is that both the first and second pipe heads are polyvinyl chloride (PVC) pipe heads, polyethylene pipe heads, polyurethane pipe heads, or polypropylene pipe heads.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are as follows: When it is necessary to connect two corrugated pipes, first place the two corrugated pipes in the placement slots at the left and right ends of the first pipe head respectively, and let the trough of the corrugated pipe be inserted into the sealing ring. Then, cover the first pipe head and the corrugated pipe in the same way, and fix the first pipe head and the second pipe head that are in contact with each other by a fixing mechanism. The sealing ring and the trough of the corrugated pipe are elastically squeezed to achieve the seal between the joint and the corrugated pipe. Since the sealing ring and the trough of the corrugated pipe are elastically squeezed to seal, the phenomenon of gaps caused by uneven pressure can be reduced. After connection, it is not easy for water to leak between the two corrugated pipes, which can further improve the sealing effect after the two corrugated pipes are connected.

[0015] Further effects: After placing the two corrugated pipes into the placement slots at the left and right ends of the first and second pipe heads respectively, align and assemble the first and second connectors so that the engaging protrusions engage in the engaging slots. During assembly, the engaging protrusions and engaging slots also serve to position the assembly. When the engaging protrusions enter the engaging slots, by applying force to press the first and second connectors (or the first and second pipe heads), the engaging rod first enters the inlet / outlet opening. At this time, the engaging protrusions open outwards and deform. With the pressing, the engaging rod enters the circular opening. The engaging rod engages with the circular opening, allowing the first and second pipe heads to fit and be fixed together.

[0016] Further effect: When the locking rod is inserted into the circular opening to fix the first and second tube heads together, and it is necessary to separate the first and second tube heads, a tool or finger can be inserted into the opening and pulled outwards to allow the locking rod to leave the circular opening from its position, thereby achieving the disassembly of the first and second tube heads.

[0017] Further benefits: When the sealing ring and the trough of the bellows are pressed together, the deformation cavity allows the sealing ring to have a larger deformation space, making the sealing ring fit tightly against the trough and improving the sealing effect on the bellows. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional view of the present invention; Figure 2 This is a cross-sectional view of the first pipe head in this utility model; Figure 3 This is a cross-sectional view of the second pipe head in this utility model; Figure 4 This is a side sectional view of the present invention; Figure 5 This is a side sectional view of the second pipe head in this utility model; Figure 6 It corresponds Figure 4 Enlarged view of part A.

[0020] Explanation of reference numerals in the attached drawings: 1. First pipe head; 2. Second pipe head; 3. Placement slot; 4. Connecting hole; 5. Sealing ring; 6. Auxiliary sealing plate; 7. First connector; 8. Second connector; 9. Engaging slot; 10. Engaging protrusion; 11. Engaging round rod; 12. Inlet / outlet opening; 13. Inclined surface; 14. Rounded chamfered surface; 15. Extension plate; 16. Pulling opening; 17. Deformation inner cavity; 18. Circular opening. Detailed Implementation

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0022] See Figures 1 to 6 As shown, the technical solution adopted in this specific embodiment is: a waterproof corrugated pipe joint, including a first pipe head 1 and a second pipe head 2 symmetrically arranged; placement slots 3 respectively opened at the left and right ends of the first pipe head 1 and the second pipe head 2 for placing the corrugated pipe; connecting holes 4 respectively opened on the first pipe head 1 and the second pipe head 2 and respectively connected to the placement slots 3; sealing rings 5 ​​respectively set on the first pipe head 1 and the second pipe head 2 and located in the placement slots 3 for elastically pressing the corrugated pipe at the trough when the corrugated pipe is placed in the placement slots 3 to seal the gap between the corrugated pipe and the first pipe head 1 and the second pipe head 2; and a fixing mechanism set between the first pipe head 1 and the second pipe head 2 for fixing the first pipe head 1 and the second pipe head 2 when the corrugated pipe is placed in the placement slots 3. The first pipe head 1 and the second pipe head 2 have the same shape and are symmetrically spliced ​​and fixed. The diameter of the placement slots 3 is larger than the diameter of the corrugated pipe. The first pipe head 1 and the second pipe head 2 are semi-circular in shape, and the sealing ring 5 is also semi-circular in shape. For example... Figure 5 As shown, to ensure the sealing performance of the sealing ring 5 after the first pipe head 1 and the second pipe head 2 are fitted together, the two arc-shaped ends of the sealing ring 5 slightly protrude from the first pipe head 1 or the second pipe head 2. This allows the two arc-shaped ends of the two sealing rings 5 ​​to press against each other after the first pipe head 1 and the second pipe head 2 are fitted and fixed, thereby improving the sealing effect of the sealing ring 5 and preventing water leakage at the joint. The number of sealing rings 5 ​​is such that at least one is provided in each placement slot 3 of the first pipe head 1 and the second pipe head 2. When the number of sealing rings 5 ​​in each placement slot 3 is two or more, the spacing between the sealing rings 5 ​​is the distance between the troughs on the outer surface of the corrugated pipe.

[0023] The first pipe head 1 and the second pipe head 2 are provided with auxiliary sealing plates 6 for sealing the connection end of the first pipe head 1 and the second pipe head 2 after the fixing mechanism fixes the first pipe head 1 and the second pipe head 2. The auxiliary sealing plates 6 can be one and set on the first pipe head 1 or the second pipe head 2, or two and set on the first pipe head 1 or the second pipe head 2 respectively. The auxiliary sealing plates 6 are set outside the sealing ring 5. After the first pipe head 1 or the second pipe head 2 is attached and fixed, the gap between the first pipe head 1 and the second pipe head 2 is sealed by the auxiliary sealing plates 6 to further improve the sealing effect of the first pipe head 1 and the second pipe head 2 on the bellows.

[0024] The fixing mechanism includes a first connector 7 disposed at the upper and lower ends of the first pipe head 1, a second connector 8 disposed at the upper and lower ends of the second pipe head 2, a locking groove 9 opened on the end face of the first connector 7, a locking protrusion 10 disposed on the end face of the second connector 8 and in clearance fit with the locking groove 9, a locking round rod 11 disposed on the first connector 7 and located in the locking groove, a circular opening 18 disposed on the locking protrusion 10 for engaging with the locking round rod 11, and an inlet / outlet opening 12 opened on the side end face of the locking protrusion 10 and communicating with the circular opening 18 for allowing the locking round rod 11 to enter or leave the circular opening 18. After the locking block is inserted into the locking groove 9, a space is formed between the upper and lower ends of the locking protrusion 10 and the side wall of the locking groove 9 of the first connector 7, allowing the locking protrusion 10 to deform vertically. This facilitates the deformation of the locking protrusion 10 when the locking rod 11 is inserted into the inlet / outlet opening 12, allowing the locking rod 11 to pass through the inlet / outlet opening 12 and enter the circular opening 18. The first connector 7 and the second connector 8 are positioned so that they maintain their corresponding positions after being fitted and spliced. The height of the inlet / outlet opening 12 is less than the diameter of the circular opening 18. To maintain uniform extrusion pressure after the first pipe head 1 and the second pipe head 2 are fitted and fixed, the first connector 7 and the second connector 8 are respectively positioned in the middle of the placement groove 3 and in the middle of the first connector 7 and the second connector 8. This ensures that the extrusion pressure at these three positions remains uniform after the fixed fit, thereby improving the sealing effect. The first connector 7 and the second connector 8 are integrally formed with the first tube head 1 and the second tube head 2, respectively. The engaging slot 9 and the engaging round rod 11 are integrally formed with the first connector 7. The engaging protrusion 10, the round opening 18, and the inlet / outlet opening 12 are integrally formed with the second connector 8.

[0025] The side end face of the engaging protrusion 10 is provided with an inclined surface 13 to facilitate the engaging rod 11 into the inlet / outlet opening 12. The inclined surface 13 is connected to the inlet / outlet opening 12. When the inclined surface 13 is not provided, the inlet / outlet opening 12 can be set as an inclined opening shape, that is, the height of the inlet / outlet opening 12 near the end face of the engaging protrusion 10 is greater than the height of the connection end between the inlet / outlet opening 12 and the circular opening 18, so that the engaging rod 11 can enter the inlet / outlet opening 12.

[0026] The engaging protrusion 10 has a chamfered surface 14 for facilitating the engagement of the round rod 11 into the inlet / outlet opening 12 through the circular opening 18. The chamfered surface 14 is connected to the circular opening 18 and the inlet / outlet opening 12.

[0027] The first connector 7 and the second connector 8 are provided with extension plates 15 on their side end faces, and the extension plates 15 are provided with pull openings 16.

[0028] The diameter of the pull-opening 16 is large enough to allow insertion of tools or fingers. The position and number of the extension plate 15 correspond to the position and number of the first connector 7 and the second connector 8. Alternatively, it can be positioned at the middle of the side ends of the first tube head 1 and the second tube head 2, with the number corresponding to the number and position of the first connector 7 and the second connector 8.

[0029] The sealing ring 5 has a deformation cavity 17 for improving the deformation capacity of the end of the sealing ring 5 so that the sealing ring 5 can fit tightly against the bellows.

[0030] The first tube head 1 and the second tube head 2 are both polyvinyl chloride (PVC) tube heads, polyethylene (PE) tube heads, polyurethane (PU) tube heads, or polypropylene tube heads. PVC, polyethylene, polyurethane, and polypropylene are all waterproof, with a tightly packed molecular structure that makes it difficult for water molecules to penetrate. Their surface energy is lower than that of water, causing water droplets to easily slide off upon contact, creating a hydrophobic effect similar to that of a lotus leaf.

[0031] The working principle of this utility model is as follows: When two corrugated pipes need to be connected, firstly, place the two corrugated pipes in the placement slots 3 at the left and right ends of the first pipe head 1, respectively, and let the troughs of the corrugated pipes fit into the sealing rings 5. Then, cover the first pipe head 1 and the corrugated pipes in the same way. Align and assemble the positions of the first connector 7 and the second connector 8, so that the engaging protrusion 10 is engaged into the engaging slot 9. During assembly, the engaging protrusion 10 and the engaging slot 9 can also play a role in assembling and positioning. When the engaging protrusion 10 enters the engaging slot, the first connector 7 and the second connector 8 (or the first pipe head 1 and the second pipe head 8) are pressed by applying force. 2) The locking rod 11 is first inserted into the inlet / outlet opening 12. At this time, the locking protrusion 10 opens outward and deforms. With the pressure, the locking rod 11 is inserted into the circular opening 18. The locking rod 11 and the circular opening 18 are locked together, so that the first pipe head 1 and the second pipe head 2 can be fitted and fixed. The sealing ring 5 is elastically squeezed at the trough of the bellows to achieve a seal between the joint and the bellows. Due to the elastic compression seal between the sealing ring 5 and the trough of the bellows, the phenomenon of gaps caused by uneven pressure can be reduced. After connection, it is not easy for water to leak between the two bellows, which can further improve the sealing effect after the two bellows are connected. When the locking rod 11 is inserted into the circular opening 18 to fix the first tube head 1 and the second tube head 2, and it is necessary to separate the first tube head 1 and the second tube head 2, a tool or finger is inserted into the pulling opening 16 and pulled outward so that the locking rod 11 can leave the circular opening 18 from the position of entering and exiting the opening 12, so as to disassemble the first tube head 1 and the second tube head 2. When the sealing ring 5 is pressed into contact with the trough of the bellows, the deformation cavity 17 allows the sealing ring 5 to generate a larger deformation space, so that the sealing ring 5 is pressed tightly against the trough, thereby improving the sealing effect on the bellows.

[0032] This utility model aims to protect the product's structure. The model numbers of the individual components are not protected by this utility model and are common knowledge. Any component on the market that can achieve the functions described above can be used as a waterproof corrugated pipe connector. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A waterproof corrugated pipe joint, characterized in that: The device includes a first pipe head and a second pipe head arranged symmetrically; placement slots for placing corrugated pipes respectively opened at the left and right ends of the first pipe head and the second pipe head; connecting holes respectively opened on the first pipe head and the second pipe head and respectively connected to the placement slots; sealing rings respectively disposed on the first pipe head and the second pipe head and located in the placement slots, for elastically pressing the corrugated pipe at the trough of the corrugated pipe when it is placed in the placement slots to seal the gap between the corrugated pipe and the first pipe head and the second pipe head; and a fixing mechanism disposed between the first pipe head and the second pipe head for fixing the first pipe head and the second pipe head when the corrugated pipe is placed in the placement slots.

2. The waterproof corrugated pipe joint according to claim 1, characterized in that: The first and second pipe heads are provided with auxiliary sealing plates for sealing the connection end of the first and second pipe heads after the fixing mechanism fixes the first and second pipe heads.

3. A waterproof corrugated pipe joint according to claim 1, characterized in that: The fixing mechanism includes a first connector respectively disposed at the upper and lower ends of the first pipe head, a second connector respectively disposed at the upper and lower ends of the second pipe head, a locking groove opened on the end face of the first connector, a locking protrusion disposed on the end face of the second connector and in clearance fit with the locking groove, a locking round rod disposed on the first connector and located in the locking groove, a circular opening disposed on the locking protrusion for engaging with the locking round rod, and an inlet / outlet opening opened on the side end face of the locking protrusion and communicating with the circular opening for allowing the locking round rod to enter or leave the circular opening.

4. A waterproof corrugated pipe joint according to claim 3, characterized in that: The side end face of the engaging protrusion is provided with an inclined surface that facilitates the engaging round rod to be engaged into the inlet and outlet opening, and the inclined surface is connected to the inlet and outlet opening.

5. A waterproof corrugated pipe joint according to claim 3, characterized in that: The engaging protrusion has a chamfered surface that facilitates the engagement of the round rod as it enters and exits the opening through the circular opening.

6. A waterproof corrugated pipe joint according to claim 3, characterized in that: The first connector and the second connector are provided with extension plates on their side end faces, and the extension plates are provided with pull openings.

7. A waterproof corrugated pipe joint according to claim 1, characterized in that: The sealing ring has a deformation cavity to improve the deformation capacity of the sealing ring end, so that the sealing ring fits tightly against the bellows.

8. A waterproof corrugated pipe joint according to claim 1, characterized in that: Both the first and second pipe heads are polyvinyl chloride (PVC) pipe heads, polyethylene pipe heads, polyurethane pipe heads, or polypropylene pipe heads.

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