CN210440707U - Electrical heating rubber tube with multilayer structure - Google Patents

Abstract

The utility model discloses an electric heating rubber tube with a multilayer structure, which belongs to the field of pipe fittings and comprises a pipeline body, wherein the surface of the pipeline body is sequentially connected with an inner rubber layer and a reinforced layer from inside to outside, a resistance wire is uniformly wound on the reinforced layer, the reinforced layer is wrapped with an outer rubber layer matched with the resistance wire, a waterproof layer is laid on the outer rubber layer, both ends of the pipeline body are fixedly connected with a sealing ring, the side wall of the sealing ring is fixedly connected with a pair of binding posts matched with the resistance wire, a quick-connecting male head matched with the pipeline body is fixedly connected on the sealing ring, the quick-connecting male head comprises an upper clamping part and a lower thread connecting part, both sides of the pipeline body are respectively provided with a quick-connecting joint matched with the quick-connecting male head, the quick-connecting joint is provided with an inserting groove matched with the upper clamping part, the inserting groove is provided with a thread groove matched with the lower thread connecting part, the urea solution in the rubber tube can be prevented from freezing, and the installation is convenient.

Description

Electrical heating rubber tube with multilayer structure

Technical Field

The utility model relates to a pipe fitting field, more specifically say, relate to a multilayer structure's electrical heating rubber tube.

Background

At present, most of urea pipelines for vehicles are nylon pipelines and are used for conveying urea solution in an automobile SCR (selective catalytic reduction) aftertreatment system. Can meet the requirements of the emission standard of the motor vehicle in the fifth stage of China. However, with the upgrade of the emission standard of the motor vehicle in China, the existing urea pipeline with a nylon structure can not meet the requirements of the motor vehicle in China.

At present, urea solution in a urea pipeline is easy to freeze in a low-temperature environment, the urea pipeline is easy to block, an automobile SCR (selective catalytic reduction) aftertreatment system cannot work normally, and the urea pipeline is fixedly connected to a device and is inconvenient to assemble and disassemble.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a multilayer structure's electrical heating rubber tube, it can realize preventing that the urea solution in the rubber tube from freezing easy to assemble.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

An electric heating rubber tube with a multilayer structure comprises a pipeline body, wherein the surface of the pipeline body is sequentially connected with an inner rubber layer and a reinforcing layer from inside to outside, resistance wires are uniformly wound on the reinforcing layer, an outer rubber layer matched with the resistance wires is coated on the reinforcing layer, a waterproof layer is paved on the outer rubber layer, sealing rings are fixedly connected to two ends of the pipeline body, a pair of wiring terminals matched with the resistance wires are fixedly connected to the side walls of the sealing rings, a quick-connection male head matched with the pipeline body is fixedly connected to the sealing rings, the quick-connection male head comprises an upper clamping portion and a lower threaded connecting portion, quick-connection joints matched with the quick-connection male heads are arranged on two sides of the pipeline body, slots matched with the upper clamping portion are chiseled on the quick-connection joints, threaded slots matched with the lower threaded connecting portion are chiseled on the slots, prevent the urea solution in the rubber tube from freezing, and is convenient to install.

Furthermore, the outer rubber layer and the inner rubber layer are both made of ethylene propylene diene monomer rubber materials, so that the weather resistance, the corrosion resistance and the low and high temperature resistance of the pipeline are easily improved.

Furthermore, the enhancement layer is the yarn weaving layer that aramid fiber line was woven, the enhancement layer is fully laminated with outer rubber layer, easily fixes the resistance wire, easily increases the burst pressure of rubber tube.

Furthermore, the resistance wire is a teflon-coated nickel-chromium resistance wire, so that liquid in the pipeline body is easily heated.

Further, go up a plurality of evenly distributed's of fixedly connected with sealing ring in the joint portion, cut on the inner wall of slot have with sealing ring assorted seal groove, easily improve the device leakproofness.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) the scheme prevents urea solution in the rubber tube from freezing, and is convenient to install.

(2) The outer rubber layer and the inner rubber layer are both made of ethylene propylene diene monomer rubber materials, so that the weather resistance, the corrosion resistance and the low and high temperature resistance of the pipeline are easily improved.

(3) The enhancement layer is the yarn weaving layer that aramid fiber line weaved, easily increases the burst pressure of rubber tube.

(4) The resistance wire is a teflon-coated nickel-chromium resistance wire, the reinforcing layer is fully attached to the outer rubber layer, the resistance wire is easy to fix, and liquid in the pipeline body is easy to heat.

(5) Go up a plurality of evenly distributed's of fixedly connected with sealing ring in the joint portion, cut on the inner wall of slot have with sealing ring assorted seal groove, easily improve the device leakproofness.

Drawings

FIG. 1 is an exploded view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a partial cross-sectional view of the present invention;

fig. 4 is a perspective view of the present invention.

The reference numbers in the figures illustrate:

the pipeline comprises a pipeline body 1, an inner rubber layer 2, a reinforcing layer 3, a resistance wire 4, an outer rubber layer 5, a waterproof layer 6, a sealing ring 7, a binding post 8, a quick-connection male head 9, an upper clamping portion 91, a lower threaded connecting portion 92, a quick-connection joint 10 and a sealing ring 11.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

please refer to fig. 1, fig. 2 and fig. 3, an electric heating rubber tube with a multilayer structure, which comprises a tube body 1, an inner rubber layer 2 and a reinforcing layer 3 are sequentially connected on the surface of the tube body 1 from inside to outside, the reinforcing layer 3 is a yarn woven layer woven by aramid fiber, the bursting pressure of the rubber tube is easily increased, a resistance wire 4 is uniformly wound on the reinforcing layer 3, the resistance wire 4 is a teflon-coated nickel-chromium resistance wire, the reinforcing layer 3 is coated with an outer rubber layer 5 matched with the resistance wire 4, the reinforcing layer 3 is fully laminated with the outer rubber layer 5, the resistance wire 4 is easily fixed, a waterproof layer 6 is laid on the outer rubber layer 5, sealing rings 7 are fixedly connected at both ends of the tube body 1, and a pair of binding posts 8 matched with the resistance wire 4 are fixedly connected on the side walls of the sealing.

The inner rubber layer 2 and the outer rubber layer 5 in the scheme are made of ethylene propylene diene monomer main body materials, and ethylene propylene diene monomer mainly has ozone resistance, weather resistance, chemical resistance and drug property resistance and low and high temperature resistance; in order to increase the bursting pressure of the rubber hose, a reinforcing layer 3 is added between the inner rubber layer 2 and the outer rubber layer 5 of the rubber hose. The reinforcing layer 3 is a textile layer woven by aramid fibers called soft steel wires, and mainly has the characteristics of high temperature resistance, small heat shrinkage after heating, light weight, high strength, wear resistance and the like.

Then again, for can be better, the liquid in the quick unfreezing rubber tube, 4 layers of resistance wire select on even winding mode twines the rubber tube body, can avoid like this because the heating effect is not good or the risk of the unable liquid that unfreezes that leads to of being heated inequality, resistance wire 4 and terminal 8 electric connection, the user can control resistance wire 4 work through inserting the electric wire into terminal 8, 4 outer cladded outer glue film 5 of resistance wire, mainly play the effect of fixed resistance wire 4.

Example 2:

please refer to fig. 1, fig. 2 and fig. 3, an electric heating rubber tube with a multilayer structure, which comprises a tube body 1, an inner rubber layer 2 and a reinforcing layer 3 are sequentially connected on the surface of the tube body 1 from inside to outside, the reinforcing layer 3 is a yarn woven layer woven by aramid fiber, the bursting pressure of the rubber tube is easily increased, a resistance wire 4 is uniformly wound on the reinforcing layer 3, the resistance wire 4 is a teflon-coated nickel-chromium resistance wire, the reinforcing layer 3 is coated with an outer rubber layer 5 matched with the resistance wire 4, the reinforcing layer 3 is fully laminated with the outer rubber layer 5, the resistance wire 4 is easily fixed, a waterproof layer 6 is laid on the outer rubber layer 5, sealing rings 7 are fixedly connected at both ends of the tube body 1, and a pair of binding posts 8 matched with the resistance wire 4 are fixedly connected on the side walls of the sealing.

Please refer to fig. 1, fig. 2 and fig. 4, the sealing ring 7 is fixedly connected with a quick-connection male joint 9 matched with the pipeline body 1, the quick-connection male joint 9 comprises an upper clamping portion 91 and a lower threaded connection portion 92, both sides of the pipeline body 1 are provided with quick-connection joints 10 matched with the quick-connection male joint 9, the quick-connection joints 10 are provided with slots matched with the upper clamping portion 91, the slots are provided with threaded grooves matched with the lower threaded connection portion 92, the upper clamping portion 91 is fixedly connected with a plurality of uniformly distributed sealing rings 11, the inner walls of the slots are provided with sealing grooves matched with the sealing rings 11, and the sealing performance of the device is easily improved.

When the pipe body is installed, the quick-connection male heads 9 at two ends of the pipe body are connected with the quick-connection joint 10, then the quick-connection joint 10 is used for connecting the pipe body into other devices, and when the quick-connection male heads 9 are connected with the quick-connection joint 10, the upper clamping portion 91 is inserted into the slot on the quick-connection joint 10, so that the quick-connection male heads 9 are tightly matched with the inner wall of the quick-connection joint 10. Smooth transition enables the liquid flowing from the quick-coupling male joint 9 to the quick-coupling joint 10 to be difficult to block, thereby preventing the reduction of the liquid flow rate and the generation of local eddy current phenomena, and the tightness between the quick-coupling male joint 9 and the quick-coupling joint 10 can be provided through the threaded connection of the lower threaded connection part 92 and the thread groove on the quick-coupling joint 10.

The inner rubber layer 2 and the outer rubber layer 5 in the scheme are made of ethylene propylene diene monomer main body materials, and ethylene propylene diene monomer mainly has ozone resistance, weather resistance, chemical resistance and drug property resistance and low and high temperature resistance; in order to increase the bursting pressure of the rubber tube, a reinforcing layer 3 is added between an inner rubber layer 2 and an outer rubber layer 5 of the rubber tube, and the reinforcing layer 3 is a textile layer woven by aramid fibers called as 'mild steel wires', and has the characteristics of high temperature resistance, small heat shrinkage after heating, light weight, high strength, wear resistance and the like.

For the liquid in the better, quick unfreezing rubber tube, 4 layers of resistance wire select even winding mode to wind on the rubber tube body, can avoid the risk of the unable liquid that unfreezes that leads to because the heating effect is not good or uneven being heated like this, resistance wire 4 and terminal 8 electric connection, the user can control the work of resistance wire 4 through inserting the electric wire into terminal 8, the outer glue film 5 of the outer cladding of 4 layers of resistance wire mainly plays the effect of fixed resistance wire 4.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims (5)

1. The utility model provides a multilayer structure's electrical heating rubber tube, includes pipeline body (1), its characterized in that: the pipeline comprises a pipeline body (1), wherein an inner rubber layer (2) and a reinforcing layer (3) are sequentially connected to the surface of the pipeline body (1) from inside to outside, resistance wires (4) are uniformly wound on the reinforcing layer (3), an outer rubber layer (5) matched with the resistance wires (4) is coated on the reinforcing layer (3), a waterproof layer (6) is paved on the outer rubber layer (5), sealing rings (7) are fixedly connected to two ends of the pipeline body (1), a pair of binding posts (8) matched with the resistance wires (4) are fixedly connected to the side walls of the sealing rings (7), a quick-connection male head (9) matched with the pipeline body (1) is fixedly connected to the sealing rings (7), the quick-connection male head (9) comprises an upper clamping portion (91) and a lower threaded connecting portion (92), quick-connection joints (10) matched with the quick-connection male head (9) are arranged on two sides of the pipeline body (1), the quick connector (10) is provided with a slot matched with the upper clamping portion (91), and the slot is provided with a thread groove matched with the lower thread connecting portion (92).

2. The electrically heated rubber tube of multilayer structure as claimed in claim 1, wherein: the outer rubber layer (5) and the inner rubber layer (2) are both made of ethylene propylene diene monomer rubber materials.

3. The electrically heated rubber tube of multilayer structure as claimed in claim 1, wherein: the reinforced layer (3) is a yarn woven layer woven by aramid fiber yarns, and the reinforced layer (3) is fully attached to the outer rubber layer (5).

4. The electrically heated rubber tube of multilayer structure as claimed in claim 1, wherein: the resistance wire (4) is a Teflon-coated nickel-chromium resistance wire.

5. The electrically heated rubber tube of multilayer structure as claimed in claim 1, wherein: go up fixedly connected with a plurality of evenly distributed's sealing ring (11) on joint portion (91), it has the seal groove with sealing ring (11) assorted to open the chisel on the inner wall of slot.

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