Quick-mounting gas seal bellows

Abstract

The utility model discloses a quick -wearing type gas seal bellows, this bellows includes gas bellows main part, joint subassembly and auxiliary assembly, and gas bellows main part is by inside to outside and is equipped with inner layer, stainless steel corrugated layer, fiber braiding reinforcing layer, outer layer, ultraviolet resistance protection layer and transparent oil dirt proof coating in proper order, and each layer end is fixed through bonding or mechanical pressure joint, and has the function of protection, strengthening and anti -aging, and the joint subassembly contains the rubber washer of the design of the limit pipe head, the staggered annular groove, the internal thread cover and the limit chuck, and the sealing reliability and the connection stability are promoted, and the auxiliary assembly is composed of the limit sleeve, the first rod and the second rod, and the operation short pole is formed through the threaded splicing, and realizes the tool -free quick installation using the lever principle, and is suitable for the narrow space and can dismantle and accomodate. The utility model installs convenient and efficient, and the sealing performance is excellent, and the structure is stable and durable, and is suitable for the gas source end and the gas equipment connection of the family kitchen, commercial catering etc.

Description

Technical Field

[0001] This utility model relates to the field of gas transmission pipeline technology, and in particular to a quick-installation gas sealing corrugated pipe. Background Technology

[0002] Gas corrugated pipes are core components that connect gas sources to gas appliances such as stoves and water heaters. With their strong flexibility and wide adaptability, they are widely used in home kitchens, commercial restaurants and other scenarios.

[0003] Existing gas corrugated pipes have many shortcomings: installation relies on specialized tools such as wrenches, which is particularly problematic in confined spaces like kitchen cabinets, limiting operation and reducing assembly efficiency, making it difficult to meet the need for rapid installation; the sealing structure is mostly a single-plane design, resulting in poor uniform deformation under pressure, which can easily lead to gas leakage risks due to seal failure after long-term use, posing a safety hazard; some products use single-layer or simple composite structures, which have insufficient tensile and friction resistance and lack targeted protective designs, making them prone to aging and damage under ultraviolet radiation and oil corrosion, resulting in a short service life.

[0004] To address this, a quick-installation gas-sealed corrugated pipe is proposed. Utility Model Content

[0005] The purpose of this utility model is to solve the above problems and to propose a gas-sealed corrugated pipe that is easy to install, has reliable sealing, and is durable in structure.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a quick-installation gas-sealed corrugated pipe, comprising a gas corrugated pipe body, wherein connector assemblies are fixedly assembled at both ends of the gas corrugated pipe body, and auxiliary components for assisting installation and positioning are sleeved on the outer side of the connector assemblies.

[0007] Preferably, the main body of the gas corrugated pipe comprises, from the inside out: an inner layer covering the inner side, a stainless steel corrugated layer attached to the outer side of the inner layer, a fiber braided reinforcing layer woven around the outer side of the stainless steel corrugated layer, an outer layer sleeved on the outer side of the fiber braided reinforcing layer, an anti-ultraviolet protective layer uniformly sprayed on the outer side of the outer layer, and a transparent anti-oil coating uniformly sprayed on the outer side of the anti-ultraviolet protective layer.

[0008] Preferably, the two ends of the inner wall of the fiber braided reinforcing layer are bonded and fixed to the two ends of the outer wall of the stainless steel corrugated layer; the two ends of the outer wall of the inner layer are bonded and fixed to the two ends of the inner wall of the stainless steel corrugated layer; and the two ends of the inner wall of the outer layer are bonded and fixed to the two ends of the outer wall of the fiber braided reinforcing layer.

[0009] Preferably, the connector assembly includes: a limiting tube head fixed to both ends of the stainless steel corrugated layer by mechanical crimping, a rubber gasket embedded in the upper part of the limiting tube head, an internal threaded sleeve sleeved on the outside of the limiting tube head, and a limiting clamp welded to the outside of the internal threaded sleeve.

[0010] Preferably, in the main body of the gas bellows, except for the stainless steel corrugated layer, the anti-ultraviolet protective layer and the transparent anti-oil coating, the ends of the remaining layers are bonded and fixed to the bottom surface of the limiting pipe head; the upper and lower surfaces of the rubber gasket are provided with annular grooves, wherein the top surface has two annular grooves and the bottom surface has one annular groove, and the annular groove on the bottom surface is located at the corresponding gap position of the two annular grooves on the top surface; the limiting clips on the outer sides of the two internal thread sleeves are both set upward along the axial direction of the bellows.

[0011] Preferably, the auxiliary components include: a limiting sleeve fitted on the outside of the limiting head, a first rod inserted into the limiting sleeve, and a second rod inserted into a threaded hole at one end of the first rod via a threaded connection.

[0012] Preferably, the inner walls of the circular through hole of the limiting sleeve are rounded at both ends; and the ends of the first rod and the second rod away from the connecting end are each provided with a spherical limiting head.

[0013] The beneficial effects of this utility model are as follows: Through the design of this gas-sealed bellows, the specific beneficial effects are as follows:

[0014] Easy and efficient installation: With the help of the lever structure of the auxiliary components, it can be adapted to narrow spaces and the joint can be tightened quickly without complicated tools.

[0015] Excellent sealing performance: The misaligned annular groove design of the rubber gasket makes the seal more reliable after deformation under pressure, effectively preventing gas leakage.

[0016] Sturdy and durable structure: The multi-layer composite structure combines protection, reinforcement and anti-aging functions, and the core layer material is adapted to the gas transmission requirements, resulting in a long service life.

[0017] Convenient and practical storage: The auxiliary components can be disassembled and stored, taking up little space and easy to reuse. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Appendix Figure 2 This is a partially exploded schematic diagram of one end of the main body of the gas bellows of this utility model.

[0020] Appendix Figure 3 This is an exploded view of the connector assembly of this utility model;

[0021] Appendix Figure 4 This is a schematic diagram of the rubber gasket structure of this utility model;

[0022] Appendix Figure 5 This is a partially exploded schematic diagram of the auxiliary components of this utility model.

[0023] Legend: 1. Gas corrugated pipe body; 101. Outer layer; 102. Fiber braided reinforcement layer; 103. Stainless steel corrugated layer; 104. Inner layer; 105. UV-resistant protective layer; 106. Transparent oil-resistant coating; 2. Connector assembly; 201. Limiting pipe head; 202. Rubber gasket; 203. Internal threaded sleeve; 204. Limiting clamp; 3. Auxiliary components; 301. Limiting clamp sleeve; 302. Rod No. 1; 303. Rod No. 2. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only a part of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] See Figure 1-2 As shown, the outer layer 101 is made of PVC braided layer, nylon braided layer or PE sheath, which plays a basic protective role for the internal structure and reduces the damage to the core layer caused by external friction and collision.

[0026] The fiber braided reinforcement layer 102 is braided and wrapped around the outside of the stainless steel corrugated layer 103 to enhance the overall structural strength and tensile properties of the corrugated pipe and prevent breakage or deformation during use.

[0027] The stainless steel corrugated layer 103 is made of 304 or 316 stainless steel and serves as the core support structure of the corrugated pipe. It combines flexibility and pressure resistance and can be adapted to different installation angle requirements.

[0028] The inner 104 layer is made of food-grade, gas-specific PE or gas-specific EPDM material, which comes into direct contact with the gas and plays a role in sealing the gas transmission, while ensuring the safety and cleanliness of the gas transmission process.

[0029] The UV-resistant protective layer 105 uses a special UV-resistant coating, which is sprayed on the outside of the outer layer 101 to resist ultraviolet radiation, delay the aging of the outer layer, and extend the service life of the corrugated pipe.

[0030] The transparent oil-resistant coating 106 is made of fluorine-containing, nano-silicone, or organosilicon coatings and is evenly sprayed on the outside of the UV-resistant protective layer 105 to facilitate cleaning of surface oil stains and further enhance the protective effect.

[0031] See appendix Figure 1-4 As shown, the limiting pipe head 201 is fixed to both ends of the stainless steel corrugated layer 103 by mechanical crimping, providing end fixing support for each layer of the gas corrugated pipe body 1, and connecting the internal threaded sleeve 203 to the gas corrugated pipe body 1.

[0032] The rubber gasket 202 is embedded inside the upper end of the limiting tube head 201. The annular grooves on the upper and lower surfaces (two rings on the top surface and one ring on the bottom surface, with the bottom groove corresponding to the gap between the top grooves) can enhance the deformation sealing when tightened, preventing gas leakage.

[0033] The internal threaded sleeve 203 is fitted on the outside of the limiting pipe head 201 and is connected to the threaded joint at the gas source end or the gas-using equipment end through threaded connection to achieve a fixed connection between the corrugated pipe and the equipment at both ends.

[0034] The limiting clamp 204 is welded to the outside of the internal threaded sleeve 203 and is set upward along the axial direction, providing an installation fulcrum for the limiting clamp 301 of the auxiliary component 3, so as to facilitate the rotation of the internal threaded sleeve 203 by means of force.

[0035] See appendix Figure 1-5 As shown, the limiting sleeve 301 is sleeved on the outside of the limiting sleeve head 204. The rounded corner structure at both ends of the inner wall of the circular through hole reduces friction with the first rod 302 and provides a stable fulcrum for the operating short rod.

[0036] The first rod 302 is inserted into the limiting sleeve 301, and one end is provided with a threaded hole for connecting the second rod 303, forming the main body of the operating short rod and transmitting rotational force.

[0037] The second rod 303 is inserted into the threaded hole of the first rod 302 via a threaded connection, and together with the first rod 303, they form a complete operating short rod. The spherical limiting head away from the connecting end can prevent it from coming out of the limiting sleeve 301 during operation, and at the same time, it uses the lever principle to reduce the difficulty of tightening the inner thread sleeve 203.

[0038] The operation procedure of this utility model is as follows: Take out the auxiliary component 3, and put the limiting sleeve 301 from top to bottom onto the limiting head 204 of the connector component 2 to ensure that the limiting sleeve 301 and the limiting head 204 are properly fitted.

[0039] Insert rod 302 into the circular through hole of the limiting sleeve 301, and then screw rod 303 into the threaded hole of rod 302 through the threaded connection to form a complete operating rod.

[0040] Hold the main body 1 of the gas bellows and adjust its position so that the inner thread sleeve 203 of the connector assembly 2 is aligned with the threaded connector at the gas source end or the gas-using equipment end, ensuring precise thread alignment.

[0041] Using the limiting sleeve 301 as a fulcrum, the operating short rod is held and the internal threaded sleeve 203 is rotated using the lever principle. During the rotation, the first rod 302 and the second rod 303 inside the limiting sleeve 301 can be moved back and forth to adapt to narrow installation spaces.

[0042] Continue rotating the internal threaded sleeve 203 until it can no longer rotate. At this point, the rubber gasket 202 is compressed and deformed, and the annular grooves on its upper and lower surfaces enhance the sealing effect.

[0043] After installation, remove the limit sleeve 301 from the limit head 204 and keep it for later use.

[0044] Hold rod 302 in place, and twist rod 303 in the opposite direction to make its front end exit the threaded hole of rod 302. Then remove rod 302 and rod 303 from the limiting sleeve 301 to complete the storage.

[0045] Although embodiments of the present invention have been shown and described, those skilled in the art should understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-installation gas-sealed corrugated pipe, characterized in that: It includes a gas bellows body (1), and joint assemblies (2) are fixedly assembled at both ends of the gas bellows body (1). An auxiliary component (3) for assisting installation and positioning is sleeved on the outside of the joint assembly (2).

2. The quick-installation gas-sealed corrugated pipe according to claim 1, characterized in that: The main body (1) of the gas corrugated pipe includes, from the inside to the outside: an inner layer (104) covering the inside, a stainless steel corrugated layer (103) attached to the outside of the inner layer (104), a fiber braided reinforcing layer (102) woven around the outside of the stainless steel corrugated layer (103), an outer layer (101) sleeved on the outside of the fiber braided reinforcing layer (102), an anti-ultraviolet protective layer (105) uniformly sprayed on the outside of the outer layer (101), and a transparent anti-oil coating (106) uniformly sprayed on the outside of the anti-ultraviolet protective layer (105).

3. The quick-installation gas-sealed corrugated pipe according to claim 2, characterized in that: The inner two ends of the fiber braided reinforcing layer (102) are bonded and fixed to the outer two ends of the stainless steel corrugated layer (103); the outer two ends of the inner layer (104) are bonded and fixed to the inner two ends of the stainless steel corrugated layer (103); and the inner two ends of the outer layer (101) are bonded and fixed to the outer two ends of the fiber braided reinforcing layer (102).

4. A quick-installation gas-sealed corrugated pipe according to claim 3, characterized in that: The connector assembly (2) includes: a limiting tube head (201) fixed to both ends of the stainless steel corrugated layer (103) by mechanical crimping, a rubber gasket (202) embedded in the upper part of the limiting tube head (201), an internal thread sleeve (203) sleeved on the outside of the limiting tube head (201), and a limiting clamp head (204) welded to the outside of the internal thread sleeve (203).

5. A quick-installation gas-sealed corrugated pipe according to claim 4, characterized in that: In the main body (1) of the gas bellows, except for the stainless steel corrugated layer (103), the UV-resistant protective layer (105) and the transparent oil-resistant coating (106), the ends of the other layers are bonded and fixed to the bottom surface of the limiting pipe head (201); the upper and lower surfaces of the rubber gasket (202) are provided with annular grooves, wherein the top surface is provided with two annular grooves and the bottom surface is provided with one annular groove, and the annular groove on the bottom surface is located at the corresponding gap position of the two annular grooves on the top surface; the limiting clips (204) on the outside of the two internal thread sleeves (203) are both set upward along the axial direction of the bellows.

6. A quick-installation gas-sealed corrugated pipe according to claim 5, characterized in that: The auxiliary component (3) includes: a limiting sleeve (301) sleeved on the outside of the limiting sleeve head (204), a first rod (302) inserted into the limiting sleeve (301), and a second rod (303) inserted into the threaded hole at one end of the first rod (302) by means of a threaded connection.

7. A quick-installation gas-sealed corrugated pipe according to claim 6, characterized in that: The inner walls of the circular through hole of the limiting sleeve (301) are rounded at both ends; the ends of the first rod (302) and the second rod (303) away from the connecting end are both provided with spherical limiting heads.

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