Plastic dipping pipe with quick connector

Abstract

The utility model relates to the technical field of connecting pipes, in particular to a plastic dipping pipe with a quick connector. Comprising a corrugated pipe, the corrugated pipe is composed of a corrugated section located in the middle and straight pipe sections located at the two ends, the corrugated pipe is sleeved with a steel wire mesh sleeve, and the steel wire mesh sleeve is covered with a plastic dipping layer; the pipe connector comprises a straight pipe section and further comprises a pipe connector arranged on the straight pipe section in a sleeving mode, a clamping ring is arranged between the pipe connector and the straight pipe section, a threaded hole is formed in the pipe connector, a blind hole is formed in the position, corresponding to the threaded hole, of the clamping ring, and a bolt penetrates through the threaded hole and then is inserted into the blind hole. The quick disconnection of the plastic dipping pipe and the connection of the gas pipeline and the gas equipment are realized.

Description

Technical Field

[0001] The present application relates to the technical field of connecting pipes, in particular to a plastic-impregnated pipe. Background Art

[0002] When gas appliances such as household gas stoves, water heaters, and wall-mounted boilers require gas, they need to be connected to the gas pipeline using a plastic-impregnated pipe. It is flexible, heat-resistant, and pressure-resistant, making it suitable for use where gas pipelines need to bend or where connections are difficult.

[0003] However, for some movable gas equipment, the plastic-impregnated pipe needs to be disconnected before the gas equipment is moved, and reconnected after the gas equipment is moved, which requires a plastic-impregnated pipe that can be quickly disconnected and reconnected. Utility Model Content

[0004] In view of the above problems existing in the prior art, the present utility model is proposed.

[0005] In order to solve the above technical problems, the present utility model provides the following technical solutions.

[0006] A plastic-impregnated pipe with a quick connector includes a corrugated pipe consisting of a corrugated section in the middle and straight sections at both ends. The corrugated pipe is sheathed with a wire mesh sleeve, which is covered with a plastic-impregnated layer.

[0007] It also includes a pipe joint sleeved on the straight pipe section, a clamping ring is provided between the pipe joint and the straight pipe section, a threaded hole is opened on the pipe joint, and a blind hole is opened on the clamping ring at a position corresponding to the threaded hole, and the bolt passes through the threaded hole and is inserted into the blind hole.

[0008] With the above design, the two pipe joints can be connected to the gas pipeline and the gas equipment respectively. When the gas equipment needs to be adjusted in position or repaired, the bolts in the threaded holes on the pipe joints can be loosened to quickly pull out the straight pipe section and the clamping ring on the bellows. After the gas equipment is adjusted in position or repaired, the plug on the bellows is inserted into the pipe joint, and then the bolts on the sleeve are tightened so that the bolts extend from the threaded holes into the blind holes, and the straight pipe section is fixed to the pipe joint, thereby realizing the quick disconnection of the plastic-impregnated pipe and the connection of the gas pipeline and the gas equipment; and the bellows does not need to be rotated and tightened to prevent the bellows from being twisted, thereby improving the safety of the plastic-impregnated pipe.

[0009] Preferably, the pipe joint comprises a front section, a middle section, and a rear section, wherein the outer diameter of the front section is smaller than the outer diameters of the rear section and the middle section, an external thread is provided on the outer side wall of the front section of the joint, and the threaded hole is provided on the rear section of the joint. By providing the external thread on the front section of the pipe joint, the present invention enables the pipe joint to be securely connected to the gas pipeline and gas equipment, ensuring a secure and leak-proof connection.

[0010] Preferably, two annular grooves with inward openings are provided on the inner sidewall of the rear middle section of the connector. Sealing rings are provided in the annular grooves, with the annular groove closer to the front section of the connector serving as the first annular groove and the annular groove further from the front section of the connector serving as the second annular groove. By providing the annular grooves with sealing rings in them, the seal between the straight pipe section and the connector is improved after the straight pipe section is inserted into the connector, preventing air leakage at the joint.

[0011] Preferably, the inner diameter of the pipe joint is uniform in the portion in front of the second annular groove, and the inner diameter of the portion behind the second annular groove increases as it moves away from the second annular groove, thereby further improving the sealing performance of the pipe joint when the straight pipe section is inserted.

[0012] Preferably, the clasp consists of a front section and a rear section. The outer wall of the front section abuts against the inner wall of the pipe joint, and the blind hole is formed in the front section. The front section abuts against the inner wall of the pipe joint, improving the seal when the straight pipe section is inserted into the pipe joint. The blind hole in the front section improves the stability of the pipe joint connection and prevents shaking at the clasp joint, which could affect the seal of the clasp.

[0013] Preferably, the front section of the snap ring is provided with a fifth annular groove with an outward opening, which replaces the blind hole. By providing the annular groove, when the straight pipe section is inserted into the pipe joint, the annular groove replaces the blind hole. When the bolt is inserted and locked in place, the snap ring does not need to be rotated to a specific position, thereby simplifying the process of inserting the straight pipe section into the pipe joint and locking the snap ring with the bolt.

[0014] Preferably, a gap is provided between the outer wall of the rear section of the snap ring and the inner wall of the pipe joint, and a third annular groove with an outward opening is provided on the rear section of the snap ring. The gap can accommodate the wire mesh sleeve, and the third annular groove facilitates the fixation of the end face of the wire mesh sleeve.

[0015] Preferably, the plastic-impregnated layer is sleeved onto the rear section of the pipe joint, thereby sealing the gap, reducing air leakage after the plug is inserted into the pipe joint, and preventing oil smoke and dust from entering the pipe joint through the gap.

[0016] Furthermore, the end of the wire mesh sleeve is inserted into the gap.

[0017] Preferably, the retaining ring is provided with a fourth annular groove with an inward opening, located near the rear end of the retaining ring and engaging at least one corrugation of the corrugated section. By engaging at least one corrugation of the corrugated section with the fourth annular groove, both ends of the bellows are secured to the straight section, ensuring a stable connection between the bellows and the straight section and preventing air leakage.

[0018] Preferably, the bellows is a metal bellows; the bolt is a headless bolt, and there are at least three threaded holes, which are evenly spaced on the pipe joint; the wire mesh sleeve is a stainless steel braided mesh; and the sealing ring is a rubber ring made of fluororubber. The headless bolts with multiple threaded holes around the plug can fix the plug in the sleeve from different sides, so that the plug is evenly stressed and fixed more stably. Through the headless bolt, the headless bolt is completely immersed in the threaded hole after being tightened. After the headless bolt presses against the plug, it will not be accidentally loosened, thereby improving the stability of the plug inserted into the pipe joint. The sleeve with the rubber layer can enhance the resistance of the plastic-impregnated pipe to ultraviolet rays, moisture and chemicals, thereby ensuring the stability of the entire plastic-impregnated pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of a plastic-impregnated tube with a quick connector according to an embodiment of the present invention;

[0021] Figure 2 A plastic-impregnated pipe with a quick connector according to an embodiment of the present invention Figure 1 A is an enlarged structural diagram of FIG. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0025] Furthermore, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it designate a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Example 1

[0027] Reference Figure 1 and Figure 2 This embodiment provides a plastic-impregnated pipe with a quick connector, including a corrugated pipe 1, which consists of a corrugated section 11 located in the middle and straight pipe sections 12 located at both ends. The corrugated pipe 1 is provided with a wire mesh sleeve 3, and the wire mesh sleeve 3 is covered with a plastic-impregnated layer 4.

[0028] It also includes a pipe joint 2 that is sleeved on the straight pipe section 12, a clamping ring 5 is provided between the pipe joint 2 and the straight pipe section 12, a threaded hole 231 is opened on the pipe joint 2, and a blind hole is opened on the clamping ring 5 at a position corresponding to the threaded hole 231, and a bolt 232 passes through the threaded hole 231 and is inserted into the blind hole. The two pipe joints 2 can be connected to the gas pipeline and the gas equipment respectively. When the gas equipment needs to be adjusted or repaired, the bolt 232 in the threaded hole 231 on the pipe joint 2 can be loosened to quickly pull out the straight pipe section 12 and the clamping ring 5 on the bellows 1. After the gas equipment is adjusted or repaired, the plug on the bellows 1 is inserted into the pipe joint 2, and then the bolt 232 on the sleeve is tightened so that the bolt 232 extends from the threaded hole 231 into the blind hole, and the straight pipe section 12 is fixed to the pipe joint 2, thereby realizing the quick disconnection and connection of the plastic-impregnated pipe and the gas pipeline and the gas equipment; and the bellows 1 does not need to be rotated and tightened to prevent the bellows 1 from being twisted, thereby improving the safety of the plastic-impregnated pipe.

[0029] The pipe joint 2 comprises a front section 21, a middle section 22, and a rear section 22. The outer diameter of the front section 21 is smaller than the outer diameters of the rear and middle sections 22. External threads are provided on the outer sidewall of the front end of the joint, and the threaded hole 231 is formed in the rear section 22. By providing external threads on the front end of the pipe joint 2, the present invention allows the pipe joint 2 to be securely connected to a gas pipeline and gas equipment, ensuring a secure and leak-proof connection.

[0030] Two annular grooves with inward openings are provided on the inner sidewall of the rear middle section of the connector. Sealing rings 221 are provided in these annular grooves. The annular groove closer to the front section 21 of the connector serves as the first annular groove, and the annular groove farther from the front section 21 serves as the second annular groove. The provision of the annular grooves with sealing rings 221 in these annular grooves improves the seal between the straight pipe section 12 and the connector 2 after the straight pipe section 12 is inserted into the connector 2, preventing air leakage at the joint.

[0031] The inner diameter of the pipe joint 2 is the same in the portion in front of the second annular groove, and the inner diameter of the portion behind the second annular groove increases as it moves away from the second annular groove, thereby further improving the sealing performance of the straight pipe section 12 when inserted into the pipe joint 2.

[0032] The clasp 5 comprises a front section and a rear section. The outer sidewall of the front section of the clasp 5 is tightly attached to the inner sidewall of the pipe joint 2, and the blind hole is formed in the front section of the clasp 5. The front section of the clasp 5 is in contact with the inner sidewall of the pipe joint 2, improving the sealing performance of the straight pipe section 12 when inserted into the pipe joint 2. The blind hole is also formed in the front section of the clasp 5 to improve the stability of the connection with the pipe joint 2 and prevent shaking at the joint of the clasp 5, which would affect the sealing performance of the clasp 5 at the contact point.

[0033] The bellows 1 is a metal bellows 1; the bolt 232 is a headless bolt, and there are at least three threaded holes 231, and the three threaded holes 231 are arranged at equal intervals on the pipe joint 2; the wire mesh sleeve 3 is a stainless steel braided mesh; the sealing ring 221 is a rubber ring made of fluororubber. The headless bolts with multiple threaded holes 231 surrounding the plug can fix the plug in the sleeve from different sides, so that the plug is evenly stressed and fixed more stably. Through the headless bolt, the headless bolt is completely immersed in the threaded hole 231 after being tightened. After the headless bolt presses against the plug, it will not be accidentally loosened, thereby improving the stability of the plug inserted into the pipe joint 2. The sleeve through the rubber layer can enhance the resistance of the plastic-impregnated pipe to ultraviolet rays, moisture and chemicals, and ensure the stability of the entire plastic-impregnated pipe.

[0034] When in use, the plastic-impregnated pipe with a quick connector is connected to the gas pipeline and gas equipment at both ends of the two pipe joints 2 respectively. When the gas equipment needs to be adjusted or repaired, first disconnect the gas valve and loosen the three headless bolts in the threaded hole 231 on the pipe joint 2. The straight pipe section 12 with the clamping ring 5 on the bellows 1 can be quickly pulled out. After the gas equipment is adjusted or repaired, the plug on the bellows 1 is inserted into the pipe joint 2, the blind hole is aligned with the threaded hole 231, and then the three headless bolts on the sleeve are tightened so that the bolt 232 extends from the threaded hole 231 into the blind hole, and the straight pipe section 12 is fixed to the pipe joint 2, thereby realizing the quick disconnection and connection of the plastic-impregnated pipe; and the bellows 1 does not need to be rotated and tightened, so that the bellows 1 will not be twisted, thereby improving the safety of the plastic-impregnated pipe.

[0035] Example 2

[0036] refer to Figure 1 and Figure 2 , which is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment.

[0037] The front end of the snap ring 5 is provided with a fifth annular groove 51 with an outward opening, which replaces the blind hole. By providing the annular groove, when the straight pipe section 12 is inserted into the pipe joint 2, the annular groove replaces the blind hole. When the bolt 232 is inserted and the bolt 232 is locked, the snap ring 5 does not need to be rotated to a specific position, thereby simplifying the difficulty of inserting the straight pipe section 12 into the pipe joint 2 and locking the snap ring 5 with the bolt 232.

[0038] A gap is provided between the outer side wall of the rear section of the snap ring 5 and the inner side wall of the pipe joint 2. A third annular groove 53 with an outward opening is provided on the rear section of the snap ring 5. The gap can accommodate the wire mesh sleeve 3, and the third annular groove 53 facilitates the fixation of the end face of the wire mesh sleeve 3.

[0039] The plastic-impregnated layer 4 is sleeved onto the rear section 22 of the pipe joint 2, thereby sealing the gap, reducing air leakage after the plug is inserted into the pipe joint 2, and preventing oil smoke and dust from entering the pipe joint through the gap.

[0040] The end of the wire mesh sleeve 3 is inserted into the gap.

[0041] The retaining ring 5 is provided with a fourth annular groove 52 with an inward opening. The fourth annular groove 52 is located near the rear end of the retaining ring 5 and engages at least one corrugation of the corrugated section 11. By engaging at least one corrugation of the corrugated section 11 with the fourth annular groove 52, both ends of the bellows 1 are secured to the straight section 12, ensuring a stable connection between the bellows 1 and the straight section 12 and preventing air leakage.

[0042] When in use, the blind hole is replaced by the fifth annular groove 51 in the front section of the clamping ring 5. When the straight pipe section 12 is inserted into the pipe joint 2, the fifth annular groove 51 does not need to be rotated, and the headless bolt can be directly tightened without rotating the clamping ring 5 to a specific position, thereby simplifying the difficulty of inserting the straight pipe section 12 into the pipe joint 2 and clamping the clamping ring 5 with the bolt 232.

[0043] It should be noted that the above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic-impregnated pipe with a quick connector, comprising a corrugated pipe, the corrugated pipe consisting of a corrugated section in the middle and straight sections at both ends, the corrugated pipe being sheathed with a wire mesh sleeve, the wire mesh sleeve being covered with a plastic-impregnated layer, characterized in that: It also includes a pipe joint sleeved on the straight pipe section, a clamping ring is provided between the pipe joint and the straight pipe section, a threaded hole is opened on the pipe joint, and a blind hole is opened on the clamping ring at a position corresponding to the threaded hole, and the bolt passes through the threaded hole and is inserted into the blind hole.

2. The plastic-impregnated tube with a quick connector according to claim 1, characterized in that: The pipe joint consists of a front section, a middle section and a rear section. The outer diameter of the front section is smaller than the outer diameters of the rear section and the middle section. An external thread is provided on the outer side wall of the front end of the joint, and the threaded hole is opened on the rear section of the joint.

3. The plastic-impregnated tube with a quick connector according to claim 2, characterized in that: Two annular grooves with inward openings are provided on the inner side wall of the rear middle section of the joint, and sealing rings are provided in the annular grooves. The annular groove close to the front section of the joint is used as the first annular groove, and the annular groove away from the front section of the joint is used as the second annular groove.

4. The plastic-impregnated tube with a quick connector according to claim 3, characterized in that: The inner diameter of the pipe joint is uniform in a portion located in front of the second annular groove, and the inner diameter of the portion located behind the second annular groove increases as it is farther away from the second annular groove.

5. The plastic-impregnated tube with a quick connector according to claim 1, characterized in that: The clamping ring consists of a clamping ring front section and a clamping ring rear section. The outer side wall of the clamping ring front section is tightly attached to the inner side wall of the pipe joint, and the blind hole is opened on the clamping ring front section.

6. The plastic-impregnated tube with a quick connector according to claim 5, characterized in that: The front section of the clamping ring is provided with a fifth annular groove which is open outward and is in an annular shape, and the blind hole is replaced by the fifth annular groove.

7. The plastic-impregnated tube with a quick connector according to claim 5, characterized in that: A gap is provided between the outer side wall of the rear section of the clamping ring and the inner side wall of the pipe joint, and a third annular groove with an outward opening is provided on the rear section of the clamping ring.

8. The plastic-impregnated tube with a quick connector according to claim 7, characterized in that: The plastic-impregnated layer is sleeved onto the rear section of the pipe joint, thereby closing the gap.

9. The plastic-impregnated tube with a quick connector according to claim 7, characterized in that: The end portion of the wire mesh sleeve is inserted into the gap.

10. The plastic-impregnated tube with a quick connector according to any one of claims 1 to 9, characterized in that: The clamping ring is provided with a fourth annular groove with an inward opening. The fourth annular groove is close to the rear end of the clamping ring and is engaged with at least one corrugation of the corrugated section.

Images