CN219453156U - Silica gel tube for high-pressure fluid conveying - Google Patents

Abstract

The utility model discloses a silica gel tube for high-pressure fluid delivery, which comprises an inner silica gel tube, a tightening layer and an outer tube, wherein the inner silica gel tube, the tightening layer and the outer tube are sequentially and adjacently arranged from inside to outside, a sealing layer is arranged on at least the side wall of one side of an air inlet of the tube, and the sealing layer at least covers a gap between the inner silica gel tube and the outer tube. The inner silicone tube is coated by the tightening layer, cannot deform and bulge outwards due to high pressure of high-pressure fluid, and the annular side walls at the two ends of the tube body are covered with the sealing layers, so that gaps between the inner silicone tube and the outer tube can be sealed to prevent high-pressure fluid from entering, the inner silicone tube is prevented from being extruded inwards or the outer tube is prevented from being extruded outwards, the stability of the structure and the shape of the tube body is ensured, and the durability of the tube body is ensured.

Description

Silica gel tube for high-pressure fluid conveying

Technical Field

The utility model relates to the technical field of high-pressure fluid conveying equipment, in particular to a silica gel tube for high-pressure fluid conveying.

Background

The current delivery of fluids is generally accomplished using tubing. In some fields, such as medical and aesthetic fields, high-pressure gas (8-20 MPa) needs to be delivered for atomizing materials such as essential oils and medicines, and environmental protection of the gas needs to be maintained during the delivery of the high-pressure gas, so that the high-pressure gas delivery can be performed by using a silicone tube. The conventional silicone tube has better flexibility and elasticity, and is easy to be impacted and deformed by high-pressure gas due to the elasticity, so that the structure and the appearance of the silicone tube are affected.

Among the prior art, application number is 201720318748.5's a double-deck silica gel glass fiber connecting pipe, it discloses the outer tube and is less than the diameter of outer tube and with the inner tube of outer tube coaxial arrangement, be equipped with the weaving layer between inner tube and the outer tube, outer tube and inner tube are the silica gel layer, and the weaving layer is glass fiber layer, and its anti-gas pressure nature is good, and explosion-proof performance is better. However, the inner tube and the outer tube are not integrally extruded and formed, even if the braiding layer is arranged in the middle, a certain gap still exists, when the tube body is inserted into the high-pressure gas conveying port, high-pressure gas possibly enters the gap, on the one hand, gas conveying is affected, on the other hand, the high-pressure gas enters between the inner layer and the outer layer through the gap, inward and outward impacts can be generated on the inner layer and the outer layer respectively, at the moment, the braiding layer cannot play a binding effect, the cavity of the inner layer can be extruded, or the outer layer protrudes outwards to form a bulge and the like, and the structure and the appearance of the connecting tube are affected, so that the normal use of the connecting tube is affected.

Disclosure of Invention

The utility model aims to provide a silica gel pipe for conveying high-pressure fluid, wherein an inner silica gel pipe is coated by a tightening layer, so that the inner silica gel pipe cannot deform outwards and bulge due to high pressure of the high-pressure fluid, and annular side walls at two ends of a pipe body are covered with sealing layers, so that gaps between the inner silica gel pipe and an outer pipe can be sealed to prevent the high-pressure fluid from entering, the inner silica gel pipe is prevented from being extruded inwards or the outer pipe is prevented from being extruded outwards, the stability of the structure and the shape of the pipe body is ensured, and the durability of the pipe body is ensured.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a high-pressure fluid is carried and is used silicone tube, includes the body, the body includes interior silicone tube, lacing layer and the outer tube that from inside to outside butt set gradually, the body is equipped with the closure layer on the lateral wall of its air inlet one side at least, the closure layer covers at least clearance between interior silicone tube and the outer tube.

As a further optimization, the lacing layer comprises a braiding layer, and the braiding layer is in a spiral differential winding structure or a hole-shaped structure.

As a further optimization, the woven layer is a cotton fiber net, a polyester fiber net, a glass fiber net or a nylon fiber net, preferably a glass fiber net.

As a further optimization, the binding layer further comprises a binding layer, and the inner wall and/or the outer wall of the woven layer are/is connected with the inner silicone tube and/or the outer tube through the binding layer respectively, so that the connection stability among the inner silicone tube, the binding layer and the outer tube can be improved.

As a further refinement, the closing layer covers at least part of the annular side wall of the inner silicone tube and at least part of the annular side wall of the outer tube.

As further optimization, the annular side wall of the inner silicone tube is provided with a first annular sinking groove communicated with the gap, the annular side wall of the outer tube is provided with a second annular sinking groove communicated with the gap, and the sealing layer is filled in the first annular sinking groove and the second annular sinking groove which are communicated with each other, so that the thickness of the sealing layer can be increased, and a better sealing effect is achieved.

As a further refinement, the ends of the binding layer protrude out of the gap and into the sealing layer.

As further optimization, the sealing layer is a vulcanized silica gel layer, and the silica gel is covered on the annular side wall of the pipe body in a vulcanization mode.

As further optimization, the outer tube is made of silica gel, is matched with the inner silica gel tube, and has excellent bending and elastic properties.

As further optimization, the silica gel tube further comprises a hand feeling oil outer coating coated on the outer wall of the tube body, so that the hand feeling can be improved, and the silica gel tube has the effects of dirt resistance and ash resistance.

Compared with the prior art, the utility model has the following beneficial effects:

1. because the inner silicone tube is coated by the binding layer, the inner silicone tube cannot deform outwards and bulge due to the large pressure of high-pressure fluid, and the structure and the shape of the product can be well ensured;

2. the annular side walls at the two ends of the pipe body are covered with the sealing layers, so that gaps between the inner silica gel pipe and the outer pipe can be sealed, high-pressure fluid can be prevented from entering from the gaps between the inner silica gel pipe and the outer pipe, the inner silica gel pipe is prevented from being extruded inwards or the outer pipe is prevented from being extruded outwards, the stability of the structure and the shape of the pipe body is ensured, and the durability of the pipe body is ensured.

Drawings

Fig. 1 is a structural diagram of the present utility model.

FIG. 2 is a schematic diagram of a structure of the present utility model with a blocking layer removed.

Fig. 3 is a schematic cross-sectional view of the present utility model.

Fig. 4 is an enlarged view at a in fig. 3.

FIG. 5 is a schematic view of another embodiment of the utility model for removing the sealing layer.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 to 4, a silica gel tube for high-pressure fluid delivery comprises a tube body 10, wherein the tube body 10 comprises an inner silica gel tube 11, a tightening layer 12 and an outer tube 13 which are sequentially and adjacently arranged from inside to outside, the outer tube 13 is made of silica gel, sealing layers 14 are arranged on annular side walls on two sides (an air inlet and an air outlet) of the tube body, and the sealing layers 14 at least cover gaps between the inner silica gel tube 11 and the outer tube.

In the utility model, because the inner silicone tube is covered by the tightening layer, when high-pressure fluid is conveyed in the inner cavity 100 of the inner silicone tube, the inner silicone tube cannot deform outwards and bulge due to larger pressure, the structure and the shape of a product can be better ensured, and the annular side walls at two ends of the tube body are covered with the sealing layer at the joint of the inner silicone tube and the outer tube, so that the gap between the inner silicone tube and the outer tube can be sealed, the inner silicone tube can be prevented from being extruded inwards or the outer tube can be prevented from being extruded outwards after the high-pressure fluid enters from the gap, the stability of the structure and the shape of the tube body can be further ensured, and the durability of the tube body is ensured.

When the pipe body is processed, the inner silica gel pipe can be extruded firstly, then the outer wall of the inner silica gel pipe is coated with the tightening layer, the shape retention of the inner silica gel pipe is realized, then the inner silica gel pipe coated with the tightening layer is taken as a core body, and the outer pipe is molded (extruded) on the outer side wall of the inner silica gel pipe, so that the manufacturing of the pipe body can be completed.

The lacing layer 12 includes a braid 121, and in the present utility model, the braid may have a mesh structure, for example, a glass fiber mesh may be optionally wrapped on the inner silicone tube, so that the inner silicone tube is not easily deformed due to the structural performance of the glass fiber mesh. In the utility model, an inner silica gel layer is taken as a core body, and glass fiber is woven on the outer wall of the inner silica gel layer to form a tightening layer.

The lacing layer 12 further comprises an adhesive layer 122, wherein the inner wall and the outer wall of the braiding layer are respectively connected with the inner silicone tube and the outer tube through the adhesive layer, and the adhesive layer can be formed by glue. For example, after the inner silica gel layer is extrusion-molded, glue is coated on the outer wall thereof, then a glass fiber mesh is woven by glass fibers on the outer side of the core, glue is coated on the outer side of the glass fiber mesh, and then the outer tube is formed by extrusion on the outer side of the core. The position between the inner silica gel layer and the binding layer and between the binding layer and the outer tube can be firmly fixed through the binding layer, so that relative sliding is prevented, the action effect of the binding layer is improved, and the connection stability among the inner silica gel tube, the binding layer and the outer tube is improved.

In the utility model, the sealing layer 14 covers at least part of the annular side wall of the inner silicone tube 11 and at least part of the annular side wall of the outer tube 13, and by increasing the coverage area of the sealing layer, on one hand, the adhesion surface is large, the sealing layer is convenient to form, and on the other hand, the sealing range is large, so that the sealing effect is better.

As shown in fig. 5, in another embodiment of the present utility model, a first annular sinking groove 111 is formed on an annular sidewall of the inner silicone tube 11 and is communicated with the gap 120, a second annular sinking groove 131 is formed on an annular sidewall of the outer tube 13 and is communicated with the gap 120, the gap 120 is a space filled with a tightening layer, the sealing layer 14 is filled in the sealing gap between the first annular sinking groove 111 and the second annular sinking groove 131, and the sealing thickness of the sealing layer is increased due to the arrangement of the annular groove, so that the sealing effect of the sealing gap is better. Based on the above arrangement, the end of the cinching layer 12 may extend out of the slit and into the enclosure without affecting the cinching layer's effectiveness in cinching the inner silicone tube wrap.

The sealing layer 14 is a vulcanized silica gel layer, and may be formed by covering a layer of silica gel on the annular side wall of the tube body, and then vulcanizing the layer, so that the layer is firmly adhered to the annular side wall of the inner silica gel layer and the annular side wall of the appearance.

As shown in fig. 4, the silica gel tube further comprises a hand feeling oil outer coating 15 coated on the outer wall of the tube body, so that the hand feeling can be improved, and the functions of easy dirt removal and easy ash removal can be realized.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (10)

1. The utility model provides a high-pressure fluid is carried and is used silicone tube, its characterized in that includes the body, the body includes interior silicone tube, lacing layer and the outer tube that from inside to outside butt set gradually, the body is equipped with the closure layer on the lateral wall of its air inlet one side at least, the closure layer covers at least clearance between interior silicone tube and the outer tube.

2. The silicone tube for high-pressure fluid transport according to claim 1, wherein the tightening layer comprises a braid having a spiral differential winding structure or a hole-like structure.

3. The silicone tube for high-pressure fluid transport according to claim 2, wherein the braid is a cotton fiber web, a polyester fiber web, a glass fiber web or a nylon fiber web.

4. A silicone tube for high pressure fluid delivery according to claim 2 or 3, wherein the tie layer further comprises an adhesive layer, the inner wall and/or outer wall of the braid being connected to the inner silicone tube and/or outer tube, respectively, by the adhesive layer.

5. The silicone tube for high pressure fluid delivery of claim 1, wherein the sealing layer covers at least a portion of the annular sidewall of the inner silicone tube and at least a portion of the annular sidewall of the outer tube.

6. The silicone tube for high pressure fluid delivery according to claim 5, wherein a first annular sinking groove communicated with the gap is provided on the annular side wall of the inner silicone tube, a second annular sinking groove communicated with the gap is provided on the annular side wall of the outer tube, and the sealing layer is filled in the communicated first annular sinking groove and second annular sinking groove.

7. The silicone tube for high-pressure fluid delivery according to claim 6, wherein an end portion of the cinch layer protrudes out of the gap and into the closed layer.

8. The silicone tube for high pressure fluid delivery according to claim 1 or 5 or 6 or 7, wherein the sealing layer is a vulcanized silicone layer.

9. The silicone tube for high-pressure fluid delivery according to claim 1, wherein the outer tube is made of silicone.

10. The silicone tube for high pressure fluid delivery of claim 1, further comprising a feel oil overcoat layer applied to the outer wall of the tube body.