A corrugated pipe joint with good sealing performance

Abstract

This utility model provides a corrugated pipe connector with good sealing performance, including a connector body. The outer wall of the connector body is clearance-fitted with the inner wall of the corrugated pipe. A limiting platform is provided on the connector body, and a sealing ring is provided on the connector body. A limiting device is provided on the limiting platform. The connector body and the limiting platform are integrally formed. There are two sealing rings, which are symmetrically arranged on the left and right sides of the limiting platform. Compared with the traditional method of manually wrapping with insulating tape, this method can improve the sealing performance between the two corrugated pipes and reduce the likelihood of leakage when the corrugated pipe is transporting media.

Description

Technical Field

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

[0002] A corrugated pipe is a flexible pipe with an annular corrugated (alternating concave and convex) structure. This unique structure gives corrugated pipes excellent flexibility, extensibility, pressure resistance, and a certain degree of impact resistance. Common corrugated pipe materials include high-density polyethylene (HDPE), polyvinyl chloride (PVC), polypropylene (PP), nylon (PA), and metals (such as stainless steel), selected according to application requirements.

[0003] The core functions of corrugated pipes are wire protection and environmental isolation. They are widely used in the following scenarios: building electrical wiring (exposed, concealed, and through walls), indoor and outdoor equipment connections, automotive wiring harness protection, and internal wiring in mechanical equipment, preventing wires and cables from being worn, squeezed, or cut, and providing some waterproofing, dustproofing, and rodent protection. Some pressure-resistant and corrosion-resistant corrugated pipes (such as stainless steel corrugated pipes) are used to transport gases and liquids (such as gas pipes, hydraulic oil pipes, and cooling water pipes), especially in areas requiring flexible connections. They are also used in ventilation duct systems requiring flexible connections. Finally, they protect precision components from dust and debris intrusion.

[0004] In practical engineering applications, it is often necessary to connect two corrugated pipes to meet length requirements or to bypass obstacles. Currently, the most common method for connecting the ends of two corrugated pipes is to manually wrap and seal them using electrical insulating tape (commonly known as "black tape") or waterproof tape. However, when manually wrapping two corrugated pipes together, tiny gaps or areas of poor adhesion can easily exist between the tape layers or between the tape and the corrugated grooves of the pipe. This can easily lead to insufficient sealing at the connection point between the two corrugated pipes, causing leakage when the corrugated pipe is conveying the medium. Utility Model Content

[0005] The purpose of this invention is to provide a corrugated pipe joint with good sealing performance, addressing the defects and shortcomings of existing technologies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a corrugated pipe connector with good sealing performance, comprising a connector body, wherein the outer wall of the connector body is clearance-fitted with the inner wall of the corrugated pipe, the connector body is provided with a limiting platform for restricting the movement of the corrugated pipe after the outer wall of the connector body is fitted with the inner wall of the corrugated pipe, the connector body is provided with a sealing ring for sealing the gap between the corrugated pipe and the connector body after the outer wall of the connector body is fitted with the inner wall of the corrugated pipe, and the limiting platform is provided with a limiting device for restricting the movement of the corrugated pipe on the outer wall of the connector body after the sealing ring seals the gap between the corrugated pipe and the connector body, the connector body and the limiting platform are integrally formed, and there are two sealing rings, which are symmetrically arranged on the left and right sides of the limiting platform.

[0007] A further improvement is made to the limiting device, which includes a connecting column fixedly mounted on the limiting platform, a connecting frame plate that can be raised and lowered on the connecting column, a fixing mechanism between the connecting column and the connecting frame plate for fixing or unfixing the connecting frame plate to the connecting column, two side plates at the left and right ends of the connecting frame plate, and a limiting block on the two side plates, close to the end face of the outer wall of the corrugated pipe. The limiting block engages with a recessed position on the outer surface of the corrugated pipe to restrict the movement of the corrugated pipe on the connector body.

[0008] A further improvement is that the fixing mechanism includes: the connecting column is a square column, the connecting frame plate is a square plate, the side end face of the connecting frame plate is provided with a threaded opening, and a top bolt is threadedly connected to the connecting frame plate within the threaded opening.

[0009] A further improvement is that: adjustment frame plates are provided at the left and right ends of the connecting frame plate, and adjustment openings are provided at the left and right ends of the two adjustment frame plates. One end of the two side plates is slidably disposed on the adjustment frame plate within the adjustment opening. A limiting block is disposed at the other end of the side plate. The adjustment frame plate is provided with a positioning element for fixing or unfixing the side plates within the adjustment opening.

[0010] A further improvement is that the positioning element includes a positioning hole formed on the upper end face of the adjusting frame plate and connected to the adjusting opening, and a positioning bolt threaded to the adjusting frame plate and located in the positioning hole.

[0011] A further improvement is that there are two limiting devices, which are symmetrically arranged on the limiting platform, either vertically or horizontally.

[0012] A further improvement is that the sealing ring is a rubber ring or a silicone ring.

[0013] A further improvement is that the limiting block includes a fixing rod fixedly disposed on the lower end face of the side plate and a snap-fit ​​block disposed on the lower end of the fixing rod.

[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 to meet the length requirements, the two corrugated pipes are inserted from the left and right ends of the connector body respectively, so that the corrugated pipes fit over the left and right ends of the connector body, and the two corrugated pipes abut against the two sealing rings. The sealing rings can seal the gap between the corrugated pipes and the connector body. Then, the movement of the corrugated pipes on the outer wall of the connector body is restricted by the limiting device, so as to fix the two corrugated pipes at the left and right ends of the connector body respectively, so as to maintain the sealing performance of the sealing rings on the corrugated pipes and the connector body. Compared with the traditional method of manually wrapping with insulating tape, the connection sealing performance between the two corrugated pipes can be improved, and it is not easy for leakage to occur when the corrugated pipes transport the medium.

[0015] Further effect: When it is necessary to fix the connecting frame plate to the connecting column to prevent the lifting and lowering of the connecting frame plate from affecting the limiting effect of the limit block on the bellows, the abutment bolt is screwed into the threaded hole until the threaded part of the abutment bolt is pressed against the side end face of the connecting column, thereby increasing the friction of the connecting frame plate on the connecting column, so as to further limit the lifting and lowering effect of the connecting frame plate on the connecting column.

[0016] Further benefits: By setting the connecting column to a square shape, after the connecting frame plate is installed on the connecting column, the two side plates on the left and right can be in a horizontal position to ensure that the limiting block can be locked into the recessed position on the outer surface of the bellows, which can play a guiding and positioning role for the side plates and the limiting block.

[0017] Further effects: When two bellows are inserted into the connector body, if it is necessary to restrict the movement of the bellows, and the limiting block does not correspond to the recessed position on the outer surface of the bellows, the side plate can be slid in the adjustment opening to make the limiting block correspond to the nearest recessed position. The side plate is then fixed in the adjustment opening by the positioning component to restrict the lateral sliding of the side plate, allowing the limiting block to remain in the recessed position. Then, the connecting frame plate is put back into the connecting column to make the limiting block snap into the recessed position, and the connecting frame plate is fixed to the connecting column by the fixing mechanism to achieve the limiting effect. 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 front sectional view of the present invention;

[0020] Figure 2 This is a top view of the present invention;

[0021] Figure 3 This is a front sectional view of the connecting frame plate, adjusting frame plate, and adjusting opening in this utility model;

[0022] Figure 4 It corresponds Figure 1 Enlarged view of part A;

[0023] Figure 5 It corresponds Figure 2 Enlarged view of part B.

[0024] Explanation of reference numerals in the attached drawings: 1. Connector body; 2. Limiting platform; 3. Sealing ring; 4. Connecting column; 5. Connecting frame plate; 6. Side plate; 7. Limiting block; 8. Threaded opening; 9. Abutting bolt; 10. Adjusting frame plate; 11. Adjusting opening; 12. Positioning opening; 13. Positioning bolt; 71. Fixing rod; 72. Snap-fit ​​block. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0026] See Figures 1 to 5 As shown, the technical solution adopted in this specific embodiment is as follows: a corrugated pipe joint with good sealing performance, including a joint body 1, wherein the outer wall of the joint body 1 is clearance-fitted with the inner wall of the corrugated pipe, a limiting platform 2 is provided on the joint body 1 to restrict the movement of the corrugated pipe after the outer wall of the joint body 1 is fitted with the inner wall of the corrugated pipe, a sealing ring 3 is provided on the joint body 1 to seal the gap between the corrugated pipe and the joint body 1 after the outer wall of the joint body 1 is fitted with the inner wall of the corrugated pipe, and a limiting device is provided on the limiting platform 2 to restrict the movement of the corrugated pipe on the outer wall of the joint body 1 after the sealing ring 3 seals the gap between the corrugated pipe and the joint body 1, the joint body 1 and the limiting platform 2 are integrally formed, and there are two sealing rings 3, which are symmetrically arranged on the left and right sides of the limiting platform 2. The fit gap between the outer wall of the joint body 1 and the inner wall of the corrugated pipe is between 0-0.5mm, and the outer wall of the joint body 1 is in close contact with the inner wall of the corrugated pipe so that the corrugated pipe can move on the joint body 1. The lengths of the left and right ends of the connector body 1 are the same. The sealing ring 3 can be fitted onto the connector body 1 and abut against one side of the limiting platform, or the sealing ring 3 can be fixed onto the connector body 1 by heat fusion or adhesive bonding and located on one side of the limiting platform.

[0027] The limiting device includes a connecting column 4 fixedly mounted on the limiting platform 2, a connecting frame plate 5 liftably mounted on the connecting column 4, a fixing mechanism between the connecting column 4 and the connecting frame plate 5 for fixing or unfixing the connecting frame plate 5 to the connecting column 4, two side plates 6 at the left and right ends of the connecting frame plate 5, and a limiting block 7 mounted on the two side plates 6 and close to the outer wall of the corrugated pipe. The limiting block 7 engages with a recessed position on the outer surface of the corrugated pipe to restrict the movement of the corrugated pipe on the connector body 1. The outer surface of the corrugated pipe has multiple equidistant annular protrusions, forming a space (i.e., a recessed position) between each annular protrusion. In this application, the limiting block 7 is engaged in this space. When the limiting block 7 is engaged in the space, the limiting block 7 abuts against the side end face of the annular protrusion to restrict the movement between the corrugated pipe and the connector body 1.

[0028] The fixing mechanism includes: the connecting column 4 is a square column, the connecting frame plate 5 is a square plate, the side end face of the connecting frame plate 5 is provided with a threaded hole 8, and the connecting frame plate 5 is threaded with a top bolt 9 located in the threaded hole 8.

[0029] Alternatively, the fixing mechanism can be configured with the connecting column 4 as a circular column. In this case, the middle part of the connecting frame plate 5 is a circular inner hole. The connecting frame plate 5 is clearance-fitted with the connecting column 4 through the circular inner hole. A threaded surface is provided on the connecting column 4, and the diameter of the threaded surface is smaller than the diameter of the circular inner hole. A fixing nut is threadedly installed on the connecting column 4 at the position of the threaded surface. After the fixing nut mates with the threaded surface, it restricts the upward space of the connecting frame plate 5 in the connecting column 4. Alternatively, the fixing nut can be omitted, and a threaded opening 8 is still opened on the side end face of the connecting frame plate 5. The abutment bolt 9 is used to abut against the side end face of the circular column.

[0030] Adjustable frame plates 10 are provided at both ends of the connecting frame plate 5. Adjustable openings 11 are provided at both ends of the two adjustable frame plates 10. One end of the two side plates 6 is slidably disposed on the adjustable frame plate 10 and located in the adjustment opening 11. The limiting block 7 is disposed at the other end of the side plate 6. The adjustable frame plate 10 is provided with a positioning element for fixing or unfixing the side plate 6 in the adjustment opening.

[0031] The positioning component includes a positioning opening 12 formed on the upper end face of the adjusting frame plate 10 and connected to the adjusting opening 11, and a positioning bolt 13 threadedly connected to the adjusting frame plate 10 and located in the positioning opening 12.

[0032] There are two limiting devices, which are symmetrically arranged on the limiting platform, either vertically or symmetrically front to back.

[0033] The sealing ring 3 is a rubber ring or a silicone ring.

[0034] The limiting block 7 includes a fixing rod 71 fixedly disposed on the lower end face of the side plate 6, and a snap-fit ​​block 72 disposed on the lower end of the fixing rod 71. The fixing rod 71 is fixedly disposed on the side plate 6 by welding or bonding, and the snap-fit ​​block 72 is integrally formed with the fixing rod 71 or separately welded or bonded. The snap-fit ​​block 72 is a circular block, and the fixing rod 71 is a square rod. The number of limiting blocks 7 is at least one, preferably two or more.

[0035] The working principle of this utility model is as follows: When two corrugated pipes need to be connected to meet the length requirement, the two corrugated pipes are inserted from the left and right ends of the connector body 1 respectively, so that the corrugated pipes fit over the left and right ends of the connector body 1, and the two corrugated pipes abut against the two sealing rings 3. The sealing rings 3 can seal the gap between the corrugated pipes and the connector body 1. Then, the connecting frame plate 5 is inserted from the position of the connecting post 4 until the limiting block 7 on the side plate 6 is stuck in the recess on the outer surface of the corrugated pipe. Then, the abutting bolt 9 is screwed into the threaded hole 8, and the abutting bolt 9 abuts against the side end face of the connecting post 4. The abutting bolt 9 increases the friction of the connecting frame plate 5 on the connecting post 4, so as to further limit the rise of the connecting frame plate 5 on the connecting post 4. The limiting block 7 can limit the movement of the corrugated pipes on the connector body 1, so as to fix the two corrugated pipes to the left and right ends of the connector body 1 respectively, so as to maintain the sealing performance of the sealing rings 3 on the corrugated pipes and the connector body 1. Compared with the traditional method of manually wrapping with insulating tape, this method can improve the efficiency of the connection. The connection between the bellows is well-sealed, preventing leakage during medium transport and ensuring a good sealing effect. The connecting post 4 is square-shaped, allowing the two side plates 6 to be horizontally aligned after the connecting frame plate 5 is installed on it. This ensures the limiting block 7 can engage with the recessed position on the outer surface of the bellows, providing guidance and positioning for the side plates 6 and the limiting block 7. When the two bellows are inserted into the connector body 1, if it is necessary to restrict the movement of the bellows, and the limiting block 7 is not engaged... When the side plate 6 corresponds to the recessed position on the outer surface of the bellows, it can be slid in the adjustment opening 11 by pulling the side plate 6 so that the limiting block 7 corresponds to the closest recessed position. The side plate 6 is then fixed in the adjustment opening 11 by the positioning component to limit the lateral sliding of the side plate 6 and keep the limiting block 7 in the recessed position. Then the connecting frame plate 5 is put back into the connecting column 4 so that the limiting block 7 is inserted into the recessed position. The connecting frame plate 5 is then fixed to the connecting column 4 by the fixing mechanism to achieve the limiting effect.

[0036] 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 type of bellows connector with good sealing performance. 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.

[0037] 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 corrugated pipe joint having improved sealing, characterised in that: The device includes a connector body, the outer wall of which is clearance-fitted with the inner wall of a bellows. The connector body is provided with a limiting platform to restrict the movement of the bellows after the outer wall of the connector body is fitted with the inner wall of the bellows. The connector body is also provided with a sealing ring to seal the gap between the bellows and the connector body after the outer wall of the connector body is fitted with the inner wall of the bellows. The limiting platform is provided with a limiting device to restrict the movement of the bellows on the outer wall of the connector body after the sealing ring seals the gap between the bellows and the connector body. The connector body and the limiting platform are integrally formed. There are two sealing rings, symmetrically arranged on the left and right sides of the limiting platform.

2. A corrugated pipe joint according to claim 1, characterised in that: The limiting device includes a connecting column fixedly mounted on the limiting platform, a connecting frame plate that can be raised and lowered on the connecting column, a fixing mechanism between the connecting column and the connecting frame plate for fixing or unfixing the connecting frame plate to the connecting column, two side plates at the left and right ends of the connecting frame plate, and a limiting block on the two side plates, close to the end face of the outer wall of the corrugated pipe. The limiting block engages with a recessed position on the outer surface of the corrugated pipe to restrict the movement of the corrugated pipe on the connector body.

3. A corrugated pipe joint according to claim 2, wherein: The fixing mechanism includes: the connecting column is a square column, the connecting frame plate is a square plate, the side end face of the connecting frame plate is provided with a threaded opening, and a top bolt is threadedly connected to the connecting frame plate within the threaded opening.

4. A corrugated pipe joint according to claim 2, wherein: Adjustable frame plates are provided at both ends of the connecting frame plate. Adjustable openings are provided at both ends of the two adjustable frame plates. One end of the two side plates is slidably disposed on the adjustable frame plate within the adjustment opening. A limiting block is disposed at the other end of the side plate. The adjustable frame plate is provided with a positioning element for fixing or unfixing the side plates within the adjustment opening.

5. A corrugated pipe joint according to claim 4, wherein: The positioning component includes a positioning opening formed on the upper end face of the adjusting frame plate and connected to the adjusting opening, and a positioning bolt threaded onto the adjusting frame plate and located in the positioning opening.

6. A corrugated pipe joint according to claim 2, wherein: There are two limiting devices, which are symmetrically arranged on the limiting platform, either vertically or symmetrically front to back.

7. A corrugated pipe joint according to claim 1, wherein: The sealing ring is a rubber ring or a silicone ring.

8. A corrugated pipe joint according to claim 2, wherein: The limiting block includes a fixing rod fixedly disposed on the lower end face of the side plate and a snap-fit ​​block disposed on the lower end of the fixing rod.

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