CN216330638U

CN216330638U - Single-pull PTFE (Polytetrafluoroethylene) membrane capable of limiting stretching direction

Info

Publication number: CN216330638U
Application number: CN202122740940.2U
Authority: CN
Inventors: 朱国军
Original assignee: Jiangsu Taimingyang New Material Technology Co ltd
Current assignee: Jiangsu Taimingyang New Material Technology Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-19
Anticipated expiration: 2031-11-10

Abstract

The utility model relates to the technical field of PTFE (polytetrafluoroethylene) films, in particular to a single-pull PTFE film capable of limiting the stretching direction, which comprises a film body and non-woven fabrics, wherein the film body is compounded at the top end of the non-woven fabrics, a woven layer is arranged between the film body and the non-woven fabrics, the woven layer comprises transverse weaving lines, weaving yarns and elastic lines, the weaving yarns penetrate through the transverse weaving lines and are woven with the film body, the elastic lines are sleeved on the two transverse weaving lines, a stretching limiting component is arranged on the outer side of the film body, the utility model is characterized in that the film body is compounded on the non-woven fabrics, a knitting layer is arranged between the film body and the non-woven fabric, the transverse knitting line and the film body are knitted together through knitting yarns, can be in the same place the diaphragm body with horizontal line zonulae occludens to through setting up tensile restriction subassembly, fixed knot block is on diaphragm body and non-woven fabrics, and the fixed band links together two fixed knots, and horizontal line and the fixed band of weaving do not possess tensile property, thereby can carry out effectual restriction to the tensile direction of diaphragm body.

Description

Single-pull PTFE (Polytetrafluoroethylene) membrane capable of limiting stretching direction

Technical Field

The utility model relates to the technical field of PTFE (polytetrafluoroethylene) membranes, in particular to a single-drawn PTFE membrane capable of limiting the stretching direction.

Background

The PTFE membrane is a microporous membrane produced by adopting polytetrafluoroethylene dispersion resin through special processes such as premixing, extruding, calendaring, biaxial stretching and the like, and is divided into a clothing membrane, a cattail micro waterproof membrane, a filtering membrane and a purifying membrane. The PTFE membrane has a fibril-like microporous structure, the porosity is more than 85%, 14 hundred million micropores are formed in each square centimeter, and the pore diameter ranges from 0.02 mu m to 15 mu m.

The PTFE film has good stretching properties and can be stretched from various directions, but when the PTFE film is to be used in a special working environment, it is necessary to restrict the stretching direction, and the PTFE film of the related art lacks a mechanism capable of restricting the stretching direction.

In order to solve the above problems, a single-drawn PTFE film in which the stretching direction can be restricted is proposed in the present application.

SUMMERY OF THE UTILITY MODEL

Objects of the first and second utility models

In order to solve the technical problems in the background art, the utility model provides a single-pull PTFE membrane capable of limiting the stretching direction, which has the characteristic of effectively limiting the stretching direction of the PTFE membrane.

Second, technical scheme

In order to solve the technical problem, the utility model provides a single-pull PTFE film capable of limiting the stretching direction, which comprises a film body and non-woven fabric, wherein the film body is compounded at the top end of the non-woven fabric, a woven layer is arranged between the film body and the non-woven fabric, the woven layer comprises a plurality of transverse woven lines, woven yarns and elastic lines, the plurality of transverse woven lines are distributed at equal intervals, the woven yarns are woven on the transverse woven lines, the woven yarns penetrate through the transverse woven lines and are woven together with the film body, the elastic lines are positioned between the two transverse woven lines, the elastic lines are sleeved on the two transverse woven lines, and a stretching limiting component is arranged on the outer side of the film body.

Preferably, a plurality of knitting yarns are arranged, and the knitting yarns are uniformly distributed on the transverse knitting yarn.

Preferably, the elastic threads are arranged in a plurality, the elastic threads are uniformly distributed between two adjacent transverse weaving threads, and the elastic threads and the weaving threads are distributed at intervals.

Preferably, the woven layer is bonded to the non-woven fabric layer by glue.

Preferably, the bleeder vent has been seted up on the non-woven fabrics, and the bleeder vent sets up a plurality ofly and evenly distributed on the non-woven fabrics, is provided with the supporting pad on the non-woven fabrics, and the supporting pad setting is in the bleeder vent top, and supporting pad top and bottom broad and middle part are narrower, and the supporting pad bottom is fixed with the non-woven fabrics and bonds, supporting pad top and the laminating of membrane body.

Preferably, tensile restriction subassembly is C shape including fixed the knot, and fixed the knot is fixed the block on the side of the membrane body and non-woven fabrics, and fixed the knot sets up the multiunit, and every group is fixed to be detained and to be set up two and symmetric distribution in the both sides of membrane body, is equipped with the fixed band between two fixed knots of every group, and the fixed band both ends all with fixed knot fixed connection.

Preferably, an elastic rib is arranged between the two adjacent groups of fixing buckles, and both ends of the elastic rib are fixedly connected with the fixing buckles.

The technical scheme of the utility model has the following beneficial technical effects:

1. according to the utility model, the membrane body is compounded on the non-woven fabric, the weaving layer is arranged between the membrane body and the non-woven fabric, the transverse weaving line and the membrane body are woven together through the weaving yarn, the membrane body and the transverse weaving line can be tightly connected together, the fixing buckle is clamped on the membrane body and the non-woven fabric through the arrangement of the stretching limiting component, the two fixing buckles are connected together through the fixing belt, and the transverse weaving line and the fixing belt do not have stretching performance, so that the stretching direction of the membrane body can be effectively limited;

2. according to the utility model, the non-woven fabric is provided with the air holes, so that the non-woven fabric has good air permeability, the supporting pad is arranged between the membrane body and the non-woven fabric and is made of an elastic material, the membrane body can be elastically supported, and the deformation resistance and impact resistance of the membrane body are improved.

Drawings

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

FIG. 2 is an exploded view of the membrane, woven and non-woven fabric of the present invention;

FIG. 3 is a schematic view of the overall structure of the woven layer of the present invention;

FIG. 4 is a schematic diagram of the overall configuration of the stretch limiting assembly of the present invention;

fig. 5 is a schematic view of the overall structure of the support pad of the present invention.

Reference numerals: 1. a membrane body; 2. weaving layer; 201. transversely weaving threads; 202. weaving silk; 203. elastic threads; 3. non-woven fabrics; 301. air holes are formed; 4. a stretch limiting assembly; 401. a fixing buckle; 402. fixing belts; 403. an elastic rib; 5. a support pad.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-4, the single-draw PTFE film capable of limiting the stretching direction provided by the present invention includes a film body 1 and a non-woven fabric 3, the film body 1 is combined on the top of the non-woven fabric 3, a woven layer 2 is disposed between the film body 1 and the non-woven fabric 3, the woven layer 2 includes a plurality of transverse threads 201, woven filaments 202 and elastic threads 203, the plurality of transverse threads 201 are distributed at equal intervals, the woven filaments 202 are woven on the transverse threads 201, the woven filaments 202 penetrate the transverse threads 201 and are woven with the film body 1, the elastic threads 203 are disposed between the two transverse threads 201, the elastic threads 203 are sleeved on the two transverse threads 201, and a stretch limiting component 4 is disposed outside the film body 1.

It should be noted that, a plurality of knitting yarns 202 are provided, the knitting yarns 202 are uniformly distributed on the horizontal knitting line 201, the knitting layer 2 is adhered to the non-woven fabric 3 through glue, the membrane body 1 is compounded on the non-woven fabric 3, the knitting layer 2 is arranged between the membrane body 1 and the non-woven fabric 3, the horizontal knitting line 201 has no transverse stretching capability, the horizontal knitting line 201 is knitted with the membrane body 1 through the knitting yarns 202, the membrane body 1 can be tightly connected with the horizontal knitting line 201, so as to limit the transverse stretching of the membrane body 1, the stretching limiting component 4 comprises a fixing buckle 401, the fixing buckle 401 is in a C shape, the fixing buckle 401 is fixedly clamped on the side edges of the membrane body 1 and the non-woven fabric 3, a plurality of groups of fixing buckles 401 are provided, two fixing buckles are symmetrically distributed on two sides of the membrane body 1, a fixing band 402 is arranged between the two fixing buckles 401 of each group, two ends of the fixing band 402 are fixedly connected with the fixing buckles 401, through setting up tensile restriction subassembly 4, fixed knot 401 block is on the lamina body 1 and non-woven fabrics 3, and fixed band 402 does not have tensile properties, links together through two fixed knot 401 of fixed band 402 to effectively restrict the tensile direction of lamina body 1.

As shown in fig. 1-4, a plurality of elastic threads 203 are provided, the elastic threads 203 are uniformly distributed between two adjacent transverse weaving threads 201, the elastic threads 203 and the weaving threads 202 are distributed at intervals, an elastic rib 403 is arranged between two adjacent groups of fixing buckles 401, and both ends of the elastic rib 403 are fixedly connected with the fixing buckles 401.

It should be noted that, when the film body 1 is longitudinally stretched, the elastic threads 203 are arranged between the transverse weaving threads 201 to bind the two transverse weaving threads 201 together, the transverse weaving threads 201 are longitudinally distributed, so that the film body 1 has better elasticity when longitudinally stretched, the elastic ribs 403 are arranged to connect the two adjacent groups of fixing buckles 401 together, the elastic ribs 403 are driven to stretch and extend simultaneously when the film body 1 is longitudinally stretched, and assistance can be provided for the stretching resilience of the film body 1.

As shown in fig. 1-2 and fig. 5, the non-woven fabric 3 is provided with a plurality of air holes 301, the air holes 301 are uniformly distributed on the non-woven fabric 3, the non-woven fabric 3 is provided with a supporting pad 5, the supporting pad 5 is arranged above the air holes 301, the top end and the bottom end of the supporting pad 5 are wide and the middle part is narrow, the bottom end of the supporting pad 5 is fixedly bonded with the non-woven fabric 3, and the top end of the supporting pad 5 is attached to the membrane body 1.

It should be noted that, through set up bleeder vent 301 on non-woven fabrics 3, can make non-woven fabrics 3 have good gas permeability, set up supporting pad 5 and support between membrane body 1 and non-woven fabrics 3, supporting pad 5 is made by elastic material, can provide elastic support to membrane body 1, improves resistant deformation, the shock resistance of membrane body 1.

The working principle of the utility model is as follows: by compounding the film body 1 on the non-woven fabric 3 and arranging the weaving layer 2 between the film body 1 and the non-woven fabric 3, the transverse weaving line 201 has no transverse stretching capability, the transverse weaving line 201 and the film body 1 are woven together through the weaving threads 202, the film body 1 and the transverse weaving line 201 can be tightly connected together, thereby limiting the transverse stretching of the film body 1, and by arranging the stretching limiting component 4, the fixing buckle 401 is clamped on the film body 1 and the non-woven fabric 3, the fixing band 402 has no stretching capability, the two fixing buckles 401 are connected together through the fixing band 402, thereby effectively limiting the stretching direction of the film body 1, when the film body 1 is longitudinally stretched, the elastic line 203 is arranged between the transverse weaving lines 201 to bind the two transverse weaving lines 201 together, the transverse weaving lines 201 are longitudinally distributed, the film body 1 can have better elasticity during longitudinal stretching, and two adjacent groups of fixing buckles 401 are connected together through the elastic ribs 403, drive the tensile extension of elasticity muscle 403 simultaneously when the membrane body 1 is vertically tensile, can provide supplementaryly to the tensile resilience of membrane body 1, through set up bleeder vent 301 on non-woven fabrics 3, can make non-woven fabrics 3 have good gas permeability, set up supporting pad 5 and support between membrane body 1 and non-woven fabrics 3, supporting pad 5 is made by elastic material, can provide elastic support to membrane body 1, improves resistant deformation, the shock resistance of membrane body 1.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a can draw PTFE membrane of direction restriction, including membrane body (1) and non-woven fabrics (3), a serial communication port, membrane body (1) complex is on the top of non-woven fabrics (3), be equipped with weaving layer (2) between membrane body (1) and non-woven fabrics (3), weaving layer (2) are including horizontal knitting line (201), weave silk (202) and elastic line (203), horizontal knitting line (201) set up a plurality ofly, a plurality of horizontal knitting line (201) are the equidistant distribution, it weaves on horizontal knitting line (201) to weave silk (202), it weaves together to weave silk (202) to pass horizontal knitting line (201) and with membrane body (1), elastic line (203) are located between two horizontal knitting line (201), elastic line (203) cup joint on two horizontal knitting line (201), the membrane body (1) outside is equipped with stretch restriction subassembly (4).

2. The PTFE film with single drawing direction limitation function according to claim 1, wherein the number of the knitting filaments (202) is plural, and the knitting filaments (202) are uniformly distributed on the cross-knitting lines (201).

3. The single-pull PTFE film capable of being stretched in a limited direction according to claim 1, wherein a plurality of the elastic threads (203) are arranged, the elastic threads (203) are uniformly distributed between two adjacent transverse weaving threads (201), and the elastic threads (203) are distributed with the weaving threads (202) at intervals.

4. A single-drawn PTFE film with stretch direction restriction according to claim 1, wherein the woven layer (2) is bonded to the nonwoven fabric (3) by glue.

5. The single-pull PTFE film capable of being limited in stretching direction according to claim 1, wherein the non-woven fabric (3) is provided with a plurality of air holes (301), the air holes (301) are uniformly distributed on the non-woven fabric (3), the non-woven fabric (3) is provided with the supporting pad (5), the supporting pad (5) is arranged above the air holes (301), the top end and the bottom end of the supporting pad (5) are wide, the middle part of the supporting pad is narrow, the bottom end of the supporting pad (5) is fixedly bonded with the non-woven fabric (3), and the top end of the supporting pad (5) is attached to the film body (1).

6. The single-pull PTFE membrane capable of being limited in stretching direction according to claim 1, wherein the stretching limiting component (4) comprises fixing buckles (401), the fixing buckles (401) are C-shaped, the fixing buckles (401) are fixedly clamped on the side edges of the membrane body (1) and the non-woven fabric (3), a plurality of groups of the fixing buckles (401) are arranged, two fixing buckles (401) in each group are symmetrically distributed on two sides of the membrane body (1), a fixing band (402) is arranged between the two fixing buckles (401) in each group, and two ends of the fixing band (402) are fixedly connected with the fixing buckles (401).

7. The single-pull PTFE membrane capable of being limited in stretching direction according to claim 6, wherein an elastic rib (403) is arranged between two adjacent groups of fixing buttons (401), and both ends of the elastic rib (403) are fixedly connected with the fixing buttons (401).