CN220268669U

CN220268669U - Stainless steel corrugated hose convenient for wall-penetrating installation and used for connecting gas appliance

Info

Publication number: CN220268669U
Application number: CN202321558086.0U
Authority: CN
Inventors: 向磊; 胡熙存
Original assignee: Ningbo Suoli Pipe Co ltd
Current assignee: Ningbo Suoli Pipe Co ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-12-29
Anticipated expiration: 2033-06-19

Abstract

The utility model discloses a stainless steel corrugated hose for connecting a gas appliance, which is convenient to install through a wall, and comprises a corrugated pipe body, a first connector and a second connector, wherein the first connector is fixedly connected with the front end of the corrugated pipe body, the second connector is detachably connected with the rear end of the corrugated pipe body, the second connector comprises a movable nut, a sealing ring and a limiting clamping ring, the movable nut is movably sleeved at the rear end of the corrugated pipe body, the limiting clamping ring comprises a first half clamping ring and a second half clamping ring which are arranged in a split mode, one end of the first half clamping ring is rotatably connected with one end of the second half clamping ring, and the first half clamping ring and the second half clamping ring can be mutually closed and opened. The limiting snap ring can effectively prevent the first half snap ring and the second half snap ring from being lost due to the arrangement of the rotating connection of the limiting snap ring. After the second connector is disassembled, the corrugated pipe body can penetrate through walls, cabinet holes, protective sleeves embedded in a building and the like, so that the stainless steel corrugated hose can be conveniently installed.

Description

Stainless steel corrugated hose convenient for wall-penetrating installation and used for connecting gas appliance

Technical Field

The utility model relates to the field of stainless steel corrugated pipes, in particular to a stainless steel corrugated hose for connecting a gas appliance, which is convenient to install through a wall.

Background

The stainless steel corrugated hose for gas has the characteristics of strong corrosion resistance, sedimentation resistance, rat and insect bite resistance, no gas blockage and the like, is well accepted by gas companies and wide users, and is widely used. The flammable and explosive nature of the gas-type fluids requires that such bellows have good gas tightness, and the connection at the joint directly affects the gas tightness of the entire bellows, so the design of the joint portion is particularly important. Most of the joints in the current market are welded joints, and the welded joints can ensure high air tightness of the corrugated pipe, but the mode is inconvenient to operate and cannot be detached and replaced once welding is carried out. Especially when wall hole, cupboard hole, pre-buried sheath pipe size are not big enough, the undetachable joint of bellows can't pass, greatly increased the installation degree of difficulty of bellows.

Of course, there is also a detachable joint in the prior art, which is detachably connected with the corrugated pipe, and can be conveniently installed through the wall. For example, chinese patent (application number 201220301880.2) discloses a detachable gas utensil is connected and is used bellows, and it includes bellows body and joint portion, through setting up the joint portion that constitutes by loose joint cover (namely movable nut), spacing snap ring and sealing washer cooperation, has realized one kind on the basis of guaranteeing the gas tightness, still is convenient for wear the detachable gas utensil of wall installation and is used bellows.

However, the above-mentioned prior art discloses a detachable gas utensil is connected and is used bellows, and its spacing snap ring adopts two split type to half snap ring concatenation to constitute, need with the two concatenation that aligns when the equipment, because spacing snap ring is usually comparatively small and exquisite, consequently makes the operation comparatively inconvenient, and also causes the snap ring to lose easily in the installation, causes the unable normal installation of bellows to use.

There is a need for improvements over the prior art.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings of the prior art, and provides a stainless steel corrugated hose for connecting a gas appliance, which is convenient to install through a wall, and the stainless steel corrugated hose can realize quick disassembly and assembly of a joint and a corrugated pipe body, and is more convenient to install and use and difficult to cause part loss through optimizing and improving the structure of a limiting snap ring.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a stainless steel corrugated hose for gas appliance connection convenient to wear wall installation, includes bellows body, first joint and second joint, first joint and the front end fixed connection of bellows body, the second joint is connected with the rear end detachably of bellows body, the second joint includes movable nut, sealing washer and spacing snap ring, the movable nut activity cup joints in the rear end of bellows body, spacing snap ring is including the first half snap ring and the second half snap ring that are the components of a whole that can function independently setting, and the one end of first half snap ring rotates with the one end of second half snap ring to be connected for first half snap ring and the half snap ring of second can be closed each other and open, the sealing washer with spacing snap ring sets gradually in the inside of movable nut from outside to inside, spacing snap ring joint is in the bellows body to spacing snap ring and the spacing end face sealing fit of spacing snap ring with the terminal surface of bellows body respectively.

Further, the plastic coating layer is coated on the outer part of the corrugated pipe body.

Further, the inner periphery of the front end of the movable nut is axially extended with a sleeve part, and the sleeve part is sleeved outside the plastic coating layer.

Further, the outer wall of the sleeve part is arranged from one end close to the movable nut to one end far away from the movable nut in a conical surface with gradually reduced diameter.

Further, the inner walls of the first half clamping ring and the second half clamping ring are respectively provided with an annular groove for clamping the corrugated pipe body.

Further, one end of the first half snap ring is provided with a groove, one end of the second half snap ring is provided with a protrusion, the protrusion at the end of the second half snap ring can be inserted into the groove at the end of the first half snap ring, and the first half snap ring is rotationally connected with the second half snap ring through a pin shaft.

Further, the first half clamping ring and the second half clamping ring are both made of metal materials.

Further, the rear end of the corrugated pipe body is provided with a leveling part, and the leveling part at least comprises a complete wave crest.

Further, the sealing ring is a rubber annular structure body, and the front end of the sealing ring is provided with an annular step groove matched with the punching part.

Further, the first joint is welded and fixed with the front end of the corrugated pipe body.

After the structure is adopted, the utility model has the beneficial effects that: the stainless steel corrugated hose for connecting the gas appliance convenient to install through the wall comprises a corrugated pipe body, a first connector and a second connector, wherein the first connector is fixedly connected with the front end of the corrugated pipe body, and the second connector is detachably connected with the rear end of the corrugated pipe body. After the second joint is disassembled, the corrugated pipe body can penetrate through walls, cabinet holes, protective sleeves embedded in a building and the like, so that the corrugated pipe is convenient to install. The limiting snap ring comprises a first half snap ring and a second half snap ring which are arranged in a split mode, one end of the first half snap ring is rotationally connected with one end of the second half snap ring, the first half snap ring and the second half snap ring can be mutually closed and opened, and the limiting snap ring can effectively prevent the first half snap ring and the second half snap ring from being lost due to the rotationally connected arrangement. The stainless steel corrugated hose for connecting the gas appliance, which is convenient to install through the wall, is convenient to detach and greatly improves the practicability.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below, and it will be apparent that the drawings in the description below are some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the product structure of the second joint of the present utility model after disassembly;

FIG. 3 is a schematic view of the present utility model in a closed state of the snap ring;

FIG. 4 is a schematic view of the present utility model in an open state of the snap ring;

FIG. 5 is a schematic cross-sectional view at A-A of FIG. 3 in accordance with the present utility model;

fig. 6 is a schematic view showing the effect of the corrugated pipe of the present utility model after through-wall installation.

The reference numerals in fig. 1 to 6 are:

1-a bellows body; 4-plastic coating; 14-punching a flat part;

2-a first linker;

3-a second linker;

5-a movable nut; 8-steps; 13-a sleeve portion;

6, a sealing ring; 12-an annular step groove;

7-limiting snap rings; 9-a first half snap ring; 10-a second half snap ring;

15-grooves; 16-bump; 17-an annular groove;

11-pin shaft.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like refer to the directions or positional relationships based on the directions or positional relationships shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 6, a stainless steel corrugated hose for gas appliance connection convenient for wall-through installation comprises a corrugated pipe body 1, a first connector 2 and a second connector 3, wherein the first connector 2 is fixedly connected with the front end of the corrugated pipe body 1, the second connector 3 is detachably connected with the rear end of the corrugated pipe body 1, the second connector 3 comprises a movable nut 5, a sealing ring 6 and a limiting snap ring 7, the movable nut 5 is movably sleeved at the rear end of the corrugated pipe body 1, the limiting snap ring 7 comprises a first half snap ring 9 and a second half snap ring 10 which are arranged in a split mode, one end of the first half snap ring 9 and one end of the second half snap ring 10 are connected in a rotating mode, the first half snap ring 9 and the second half snap ring 10 can be mutually closed and opened, the sealing ring 6 and the limiting snap ring 7 are sequentially arranged inside the movable nut 5 from outside to inside, the limiting snap ring 7 is clamped in the corrugated pipe body 1, the limiting snap ring 7 is axially in limiting fit with the movable nut 5, and the sealing ring 6 is respectively in sealing fit with the end face of the corrugated pipe body 1 and the limiting snap ring 7. The inner walls of the first half clamping ring 9 and the second half clamping ring 10 are respectively provided with an annular groove 17 for clamping the corrugated pipe body 1.

In this embodiment, the first connector 2 is fixedly connected to the front end of the bellows body 1, and the second connector 3 is detachably connected to the rear end of the bellows body 1. When the second connector 3 is disassembled, the corrugated pipe body 1 passes through the wall hole, then the movable nut 5 is sleeved at the rear end of the corrugated pipe body 1, the limiting snap ring 7 is broken off, the first half snap ring 9 and the second half snap ring 10 are in an open state, as shown in fig. 4, the annular groove 17 of the limiting snap ring 7 is clamped at the crest of the first corrugated pipe in front of the punching part 14, the limiting snap ring 7 is folded, the first half snap ring 9 and the second half snap ring 10 are in a closed state, as shown in fig. 3, and at the moment, the front end of the limiting snap ring 7 abuts against the step 8 of the movable nut 5 to be in axial limiting fit. And then the sealing ring 6 is arranged in the movable nut 5, the annular step groove 12 of the sealing ring 6 is in sealing fit with the rear end face and the peripheral face of the flushing part 14, and finally the gas appliance butt joint is in threaded connection with the movable nut 5, so that the rapid wall penetrating installation of the corrugated pipe is realized, and the product effect after the wall penetrating installation is shown in figure 6.

As another preferable structure of the utility model, the plastic coating layer 4 is coated outside the corrugated pipe body 1, the plastic coating layer 4 can effectively prevent the friction between the corrugated pipe body 1 and the outside, the service life of the corrugated pipe body 1 is prolonged, and the corrugated pipe is particularly suitable for connecting the gas appliance which needs to be buried in a wall body. The front end inner periphery of the movable nut 5 extends along the axial direction to form a sleeve part 13, the sleeve part 13 is sleeved outside the plastic coating layer 4, the outer wall of the sleeve part 13 is arranged from one end close to the movable nut 5 to one end far away from the movable nut 5 in a conical surface with gradually reduced diameter, and the sleeve part 13 can effectively prevent foreign matters or liquid from entering the corrugated pipe body 1 to corrode the corrugated pipe body 1, so that the service life of the corrugated pipe body 1 is prolonged. When special installation needs exist, if the corrugated pipe body 1 needs to be received into a wall hole after the installation is completed, the conical surface of the sleeve part 13 can play a guiding role, so that the movable nut 5 can be better clamped into the wall hole after the installation is completed, and meanwhile, gaps between the corrugated pipe body 1 and the wall hole can be filled, and shaking of the corrugated pipe body 1 during use is reduced.

As another preferable structure of the present utility model, a groove 15 is provided at one end of the first half snap ring 9, a protrusion 16 is provided at one end of the second half snap ring 10, the protrusion 16 at the end of the second half snap ring 10 may be inserted into the groove 15 at the end of the first half snap ring 9, and the first half snap ring 9 and the second half snap ring 10 are rotatably connected through the pin 11. The first half clamping ring 9 and the second half clamping ring 10 are made of metal materials. As shown in fig. 3 to 5, the protrusion 16 at the end of the second half snap ring 10 can be inserted into the groove 15 at the end of the first half snap ring 9, and is matched to form a rotary connection through the pin 11, so that the first half snap ring 9 and the second half snap ring 10 can be mutually closed and opened, and the limiting snap ring 7 can effectively prevent the first half snap ring 9 and the second half snap ring 10 from being lost due to the arrangement that the limiting snap ring 7 is matched to form the rotary connection through the pin 11. The limiting snap ring 7 is made of metal, especially copper, stainless steel, which has the characteristic of strong corrosion resistance, and has higher hardness relative to plastic materials, so that the drawing force of the corrugated pipe body 1 and the second joint 3 can be further increased.

As another preferable structure of the present utility model, the rear end of the bellows body 1 is provided with a flattened portion 14, and the flattened portion 14 includes at least one complete peak. The sealing ring 6 is a rubber annular structure, and the front end of the sealing ring 6 is provided with an annular step groove 12 matched with the punching part 14. The sealing ring 6 ensures that the joint part of the utility model has better sealing performance, and the rubber ring-shaped sealing ring is used as one preferable choice of the utility model because the rubber has low material cost and strong sealing performance, and the annular step groove 12 at the front end of the sealing ring 6 increases the effective sealing surface of the sealing ring 6, so that the sealing performance of the second joint 3 is more reliable. The rear end face and the outer peripheral face of the flushing part 14 are tightly matched with the annular step groove 12 of the sealing ring 6, so that the sealing effect is effectively improved. The front end face of the punching part 14 is matched with the rear end face of the limit clamping ring 7, so that the drawing force of the joint of the second connector 3 and the corrugated pipe body 1 is increased.

As another preferable structure of the present utility model, the first joint 2 is welded and fixed to the front end of the bellows body 1. The first joint 2 is fixedly connected by welding, so that high air tightness of the corrugated pipe can be ensured.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present utility model.

Claims

1. The utility model provides a stainless steel corrugated hose for gas apparatus connection convenient to wear wall installation, includes bellows body (1), first joint (2) and second joint (3), the front end fixed connection of first joint (2) and bellows body (1), second joint (3) are connected with the rear end detachably of bellows body (1), second joint (3) include movable nut (5), sealing washer (6) and spacing snap ring (7), its characterized in that: the movable nut (5) is movably sleeved at the rear end of the corrugated pipe body (1), the limiting snap ring (7) comprises a first half snap ring (9) and a second half snap ring (10) which are arranged in a split mode, one end of the first half snap ring (9) is rotatably connected with one end of the second half snap ring (10), the first half snap ring (9) and the second half snap ring (10) can be mutually closed and opened, the sealing ring (6) and the limiting snap ring (7) are sequentially arranged inside the movable nut (5) from outside to inside, the limiting snap ring (7) is clamped on the corrugated pipe body (1), and the limiting snap ring (7) is axially in limiting fit with the movable nut (5), and the sealing ring (6) is respectively in sealing fit with the end face of the corrugated pipe body (1) and the end face of the limiting snap ring (7).

2. The stainless steel corrugated hose for connecting a gas appliance for wall-through installation according to claim 1, wherein: the outside of the corrugated pipe body (1) is coated with a plastic coating layer (4).

3. The stainless steel corrugated hose for connecting a gas appliance for wall-through installation according to claim 2, wherein: the inner periphery of the front end of the movable nut (5) is axially extended with a sleeve part (13), and the sleeve part (13) is sleeved outside the plastic coating layer (4).

4. A stainless steel corrugated hose for connecting a gas appliance for easy through-wall installation according to claim 3, wherein: the outer wall of the sleeve part (13) is arranged from one end close to the movable nut (5) to one end far away from the movable nut (5) in a conical surface with gradually reduced diameter.

5. The stainless steel corrugated hose for connecting a gas appliance for wall-through installation according to claim 1, wherein: the inner wall of the first half clamping ring (9) and the inner wall of the second half clamping ring (10) are respectively provided with an annular groove (17) for clamping the corrugated pipe body (1).

6. A stainless steel corrugated hose for connecting a gas appliance for wall-through installation according to claim 1 or 5, wherein: one end of the first half clamping ring (9) is provided with a groove (15), one end of the second half clamping ring (10) is provided with a protrusion (16), the protrusion (16) at the end of the second half clamping ring (10) can be inserted into the groove (15) at the end of the first half clamping ring (9), and the first half clamping ring (9) and the second half clamping ring (10) are rotationally connected through a pin shaft (11).

7. A stainless steel corrugated hose for connecting a gas appliance for wall-through installation according to claim 1 or 5, wherein: the first half clamping ring (9) and the second half clamping ring (10) are both made of metal materials.

8. The stainless steel corrugated hose for connecting a gas appliance for wall-through installation according to claim 1, wherein: the rear end of the corrugated pipe body (1) is provided with a leveling part (14), and the leveling part (14) at least comprises a complete wave crest.

9. The stainless steel corrugated hose for connecting a gas appliance for wall-through installation according to claim 8, wherein: the sealing ring (6) is a rubber annular structure, and an annular step groove (12) matched with the punching part (14) is formed in the front end of the sealing ring (6).

10. The stainless steel corrugated hose for connecting a gas appliance for wall-through installation according to claim 1, wherein: the first joint (2) is welded and fixed with the front end of the corrugated pipe body (1).