CN214404972U - Drain pipe and electrical equipment - Google Patents
Drain pipe and electrical equipment Download PDFInfo
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- CN214404972U CN214404972U CN202120432086.0U CN202120432086U CN214404972U CN 214404972 U CN214404972 U CN 214404972U CN 202120432086 U CN202120432086 U CN 202120432086U CN 214404972 U CN214404972 U CN 214404972U
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 27
- 230000000670 limiting effect Effects 0.000 claims abstract description 25
- 230000007704 transition Effects 0.000 claims description 8
- 230000002349 favourable effect Effects 0.000 abstract description 10
- 238000009395 breeding Methods 0.000 abstract description 5
- 230000001488 breeding effect Effects 0.000 abstract description 5
- 230000008602 contraction Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a pipe fitting field provides a drain pipe and electrical equipment. The drain pipe comprises a pipe body and a spiral spring, the pipe body is provided with a first pipe section, a flexible section and a second pipe section which are sequentially connected, the joint of the first pipe section and the flexible section is provided with a first limiting surface, the joint of the flexible section and the second pipe section is provided with a second limiting surface, and the first limiting surface and the second limiting surface face towards the pipe cavity of the flexible section; the coil spring is installed in the lumen of flexible section, and the axis of coil spring is followed the length direction of flexible section, and coil spring and the internal perisporium butt of flexible section, along the length direction of flexible section, coil spring is restricted between first spacing face and second spacing face. The utility model can avoid the concave-flat deformation of the flexible section when the flexible section is bent and deformed without arranging the pipe body into a multilayer structure and arranging a concave-convex structure on the inner peripheral wall of the flexible section; the structure of body is comparatively simple, and processing is comparatively convenient, is favorable to reducing the risk of breeding biological glutinous mud on the internal perisporium.
Description
Technical Field
The utility model relates to a pipe fitting field specifically relates to a drain pipe and electrical equipment.
Background
Air conditioner generally has the drain pipe of discharging the comdenstion water, and the pipeline section of being close to drain outlet one end of drain pipe often need can be crooked, in order to avoid this pipeline section concave flat deformation when crooked, prior art sets up this pipeline section of drain pipe into the bellows, and this results in having the less concavo-convex structure of size on the internal perisporium of this pipeline section, leads to this pipeline section to remain the comdenstion water for a long time easily, leads to breeding biological slime on the internal perisporium of this pipeline section easily, then leads to the circulation ability decline of this pipeline section to block up even easily.
The chinese utility model with publication number CN204062292U discloses an elbow with a flexible pipe, the pipe body of the elbow of the present invention has a steel wire frame layer, the steel wire frame layer is spiral, which can avoid the concave-flat deformation of the elbow during bending, however, on one hand, the inner peripheral wall surface of the elbow of the present invention is a smooth curved surface, but still has a concave-convex structure with smaller size, which still may breed biological slime, possibly leading to the reduction of the circulation capacity of the elbow and even the blockage; on the other hand, the steel wire frame layer of the scheme is positioned between the two cloth clamping layers and the two rubber layers, so that the processing difficulty of the elbow is higher.
SUMMERY OF THE UTILITY MODEL
One of the objectives of the present invention is to provide a drain pipe with simple structure and less deformation when bending.
In order to achieve the above object, the present invention provides a drain pipe, which comprises a pipe body and a coil spring, wherein the pipe body comprises a first pipe section, a flexible section and a second pipe section, the first pipe section, the flexible section and the second pipe section are sequentially connected, a joint of the first pipe section and the flexible section is provided with a first limiting surface, a joint of the flexible section and the second pipe section is provided with a second limiting surface, and the first limiting surface and the second limiting surface are both facing to a pipe cavity of the flexible section; the coil spring is installed in the lumen of flexible section, and the axis of coil spring is followed the length direction of flexible section, and coil spring and the internal perisporium butt of flexible section, along the length direction of flexible section, coil spring is restricted between first spacing face and second spacing face.
Therefore, when the flexible section is bent and deformed, the flexible section is not deformed in a concave-flat manner under the supporting action of the spiral spring, which is favorable for ensuring the smooth circulation of water flow in the flexible section; moreover, because the spiral spring is arranged in the tube cavity of the flexible section, the tube body does not need to be arranged into a multilayer structure, the structure of the tube body is simpler, and the processing is more convenient; furthermore, because the utility model discloses a coil spring can ensure that the section of flexing does not take place concave flat deformation when crooked, therefore the utility model discloses need not set up concave-convex structure on the internal perisporium of the section of flexing, this risk that is favorable to breeding biological glutinous mud on the reduction internal perisporium is favorable to ensureing that the drain pipe is unobstructed for a long time.
The flexible section of the utility model can be suitable for the bending deformation pipe section.
Preferably, the inner peripheral wall surface of the flexible section is a smooth surface extending in the longitudinal direction.
From the above, it can be seen that the risk of biological slime growth on the inner peripheral wall of the flexible section is further reduced.
Another preferred scheme is that the inner peripheral wall surface of the first pipe section, the first limiting surface and the inner peripheral wall surface of the flexible section are in smooth transition in sequence; and/or the inner peripheral wall surface of the second pipe section, the second limiting surface and the inner peripheral wall surface of the flexible section are in smooth transition in sequence.
From the above, it can be seen that the risk of biological slime growth on the inner peripheral wall of the flexible section is further reduced.
Still another preferred scheme is that the first limiting surface is a step surface, and/or the second limiting surface is a step surface.
In another preferred embodiment, the pipe body is a circular cross-section pipe, the axes of the first pipe section, the flexible section and the second pipe section are coincident, the difference between the inner diameter of the flexible section and the inner diameter of the first pipe section is greater than or equal to twice the wire diameter of the coil spring, and/or the difference between the inner diameter of the flexible section and the inner diameter of the second pipe section is greater than or equal to twice the wire diameter of the coil spring.
It is thus clear that on the one hand, rivers are less to coil spring's direct impact, are favorable to coil spring's installation stable, and on the other hand, coil spring is less to the resistance of rivers, is favorable to reducing the rivers resistance, is favorable to guaranteeing that rivers are smooth and easy.
Still preferably, the flexible section has an inner diameter of 15 mm to 20 mm, the pitch of the coil spring is 0.5 mm to 1 mm, and the wire diameter of the coil spring is 0.3 mm to 0.8 mm.
Still preferably, the outer peripheral wall of the first tube section is provided with a plurality of first annular ribs extending along the circumferential direction, and the first annular ribs are distributed at intervals along the length direction of the first tube section; and/or a plurality of second annular convex ribs extending along the circumferential direction are arranged on the outer circumferential wall of the second pipe section, and the second annular convex ribs are distributed at intervals along the length direction of the second pipe section.
As can be seen, this is advantageous in enhancing the structural strength of the first and/or second pipe sections.
It is further preferred that the length of the flexible section is from 0.3 to 0.45 times the total length of the tube.
It is also preferred that the dimension of the coil spring is 0.75 to 1 times the dimension of the flexible section along the length of the flexible section.
It can be seen from above that, enough flexible deformation space has been reserved for coil spring in the lumen of section of so both having been flexible, make coil spring flexible deformation and flexible section flexible deformation mutually noninterfere in length direction in the axis direction, avoid coil spring and flexible section to drag each other in length direction, avoid flexible section to be dragged the damage by coil spring, can ensure again that most regional homoenergetic of flexible section can obtain coil spring's support, guarantee that flexible section homoenergetic when the bending deformation takes place in the optional position can obtain coil spring's good support.
The second purpose of the utility model is to provide an electrical equipment including aforementioned drain pipe.
In order to achieve the above object, the utility model provides an electrical equipment includes organism and aforementioned drain pipe, and the organism has the outlet, and drain pipe connection is in the outlet.
Drawings
Fig. 1 is a sectional view of an embodiment of the drain pipe of the present invention.
Detailed Description
The embodiment of the drain pipe and the electrical equipment comprises:
the electrical equipment of the embodiment is an indoor air conditioner, the indoor air conditioner comprises a machine body and a drain pipe of the embodiment, the machine body is provided with a drain outlet, and the drain pipe is connected to the drain outlet; specifically, the first pipe 11 described below is connected to a drain port of the machine body.
Alternatively, in other embodiments of the present invention, the electrical equipment may also be a washing machine, a clothes dryer, or may be the entire air conditioning system including an indoor unit of an air conditioner.
Referring to fig. 1, the drain pipe includes a pipe body 1 and a coil spring 2, the pipe body 1 has a first pipe section 11, a flexible section 12 and a second pipe section 13 which are connected in sequence, the pipe body 1 is a circular section pipe, axes of the first pipe section 11, the flexible section 12 and the second pipe section 13 are overlapped, an inner diameter D1 of the first pipe section 11 is smaller than an inner diameter D2 of the flexible section 12, an inner diameter D3 of the second pipe section 13 is smaller than an inner diameter D2 of the flexible section 12, an annular first step surface (an example of a first limiting surface) is formed at a joint of the first pipe section 11 and the flexible section 12, an annular second step surface (an example of a second limiting surface) is formed at a joint of the second pipe section 13 and the flexible section 12, and both the first step surface and the second step surface face the pipe cavity of the flexible section 12 along a length direction of the flexible section 12.
Alternatively, in another embodiment of the present invention, the step surface may be replaced by a limiting surface that is not perpendicular to the inner peripheral wall surface of the flexible section 12, for example, the included angle between the limiting surface and the inner peripheral wall surface of the flexible section 12 is 120 °.
The coil spring 2 is mounted in the lumen of the flexible section 12, the axis of the coil spring 2 is along the length direction of the flexible section 12, the coil spring 2 abuts against the inner peripheral wall of the flexible section 12, and the flexible section 12 is limited between the first step surface and the second step surface along the length direction of the flexible section 12. Under the limiting action of the first step surface and the second step surface, the coil spring 2 cannot enter the lumen of the first pipe section 11 from the lumen of the flexible section 12, and cannot enter the lumen of the second pipe section 13 from the lumen of the flexible section 12, which is beneficial to ensuring the stability of the installation position of the coil spring 2.
The smooth surface that the interior wall of first pipeline section 11 extended for following length direction, the smooth surface that the interior wall of flexible section 12 extended for following length direction, the smooth surface that the interior wall of second pipeline section 13 extended for following length direction, the interior wall of first pipeline section 11 and first step face pass through radius angle smooth transition, first step face and the interior wall of flexible section 12 pass through radius angle smooth transition, the interior wall of flexible section 12 and second step face pass through radius angle smooth transition, the interior wall of second step face and the interior wall of second pipeline section 13 pass through radius angle smooth transition.
Thus, when the flexible section 12 is bent and deformed, the flexible section 12 will not be deformed in a concave-flat manner under the supporting action of the coil spring 2, which is beneficial to ensuring the smooth circulation of condensed water; moreover, since the coil spring 2 is installed in the lumen of the flexible section 12, the body 1 of the drain pipe does not need to be a multi-layer structure in this embodiment, the structure of the body 1 is simpler, and the processing is more convenient; in addition, because the coil spring 2 of the present embodiment can ensure that the flexible section 12 does not deform in a concave-flat manner when being bent, the present embodiment does not need to provide a concave-convex structure on the inner peripheral wall of the flexible section 12, which is beneficial to reducing the risk of breeding biological slime on the inner peripheral wall and ensuring that the drain pipe is unobstructed for a long time; further, the inner peripheral wall surface of the flexible section 12 is a smooth surface extending along the length direction, which is further beneficial to reducing the risk of biological slime breeding on the inner peripheral wall of the flexible section 12.
Preferably, the difference between the inner diameter D2 of the flexible section 12 and the inner diameter D1 of the first tube section 11 is equal to or greater than twice the wire diameter of the coil spring 2, and the difference between the inner diameter D2 of the flexible section 12 and the inner diameter D3 of the second tube section 13 is equal to or greater than twice the wire diameter of the coil spring 2. When rivers flowed to flexible section 12 from first pipe section 11 like this, it is less to coil spring 2's direct impact, be favorable to coil spring 2's installation stable, also be favorable to reducing the rivers resistance, be favorable to guaranteeing that rivers are smooth and easy.
Preferably, the outer peripheral wall of the first tube segment 11 has a plurality of first annular ribs 111 extending along the circumferential direction, and each first annular rib 111 is distributed at intervals along the length direction of the first tube segment 11; the outer peripheral wall of the second tube section 13 has a plurality of second annular ribs 131 extending along the circumferential direction, and the second annular ribs 131 are distributed at intervals along the length direction of the second tube section 13. The arrangement of the first annular rib 111 is beneficial to enhancing the structural strength of the first pipe section 11; similarly, the provision of the second annular bead 131 facilitates enhancing the structural strength of the second pipe section 13.
Specifically, the ratio of the radial thickness dimension to the axial dimension of the first annular bead 111 is 0.5.
Preferably, the length L2 of the flexible section 12 is 0.3 to 0.45 times the total length L3 of the tube 1.
When the flexible section 12 is bent and deformed, the expansion and contraction deformation range of the coil spring 2 in the axial direction and the expansion and contraction deformation range of the flexible section 12 in the longitudinal direction are different; further, when the flexible segment 12 is bent and deformed at different positions, the deformation of the coil spring 2 at each position in the axial direction is different, and the expansion and contraction deformation of the flexible segment 12 at each position in the longitudinal direction is different, so that it is preferable that the dimension L1 of the coil spring 2 in the longitudinal direction of the flexible segment 12 is 0.75 to 1 times the dimension L2 of the flexible segment 12, so that a sufficient expansion and contraction deformation space is reserved for the coil spring 2 in the lumen of the flexible segment, the expansion and contraction deformation of the coil spring 2 in the axial direction and the expansion and contraction deformation of the flexible segment 12 in the longitudinal direction do not interfere with each other, the coil spring 2 and the flexible segment 12 are prevented from being pulled and damaged in the longitudinal direction, and it is possible to ensure that the coil spring 2 is supported in most regions of the flexible segment 12, and it is possible to ensure that the coil spring 2 is well supported when the flexible segment 12 is bent and deformed at any position, ensuring that the flexible section 12 does not deform concavely or flatly when it is bent or deformed at any position.
Specifically, in the embodiment, the pipe body 1 is processed by a secondary injection molding mode on the basis of the coil spring 2, and then the drain pipe is produced; of course, since the diameter of the coil spring 2 can be reduced by screwing the coil spring 2 around the axis, it is also possible to manufacture the tubular body 1 by injection molding and then to fit the coil spring 2 into the lumen of the flexible section 12 through the lumen of the first tubular section 11 having a shorter length.
Specifically, the following dimensional parameters of the coil spring 2 and the tube 1 in fig. 1 of the specification are only schematic, and preferably, the inner diameter D2 of the flexible section 12 of this embodiment is 15 mm to 20 mm, the wall thickness of the flexible section 12 is 1 mm, the wire diameter of the coil spring 2 is 0.3 mm to 0.8 mm, and the thread pitch is 0.5 mm to 1 mm; of course, in other embodiments of the present invention, parameters such as the diameter and the wall thickness of the pipe body 1 and parameters such as the wire diameter and the pitch of the coil spring 2 can be adjusted as required, for example, referring to the relationship between the parameters of the elbow and the wire frame layer in CN 204062292U.
Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the present invention, and are not intended to limit the invention, as those skilled in the art will appreciate that various changes and modifications may be made, and any and all modifications, equivalents, and improvements made, while remaining within the spirit and principles of the present invention, are intended to be included within the scope of the present invention.
Claims (10)
1. A drain tube comprising a tube having a flexible section;
the method is characterized in that:
the pipe body is also provided with a first pipe section and a second pipe section, the first pipe section, the flexible section and the second pipe section are sequentially connected, the joint of the first pipe section and the flexible section is provided with a first limiting surface, the joint of the flexible section and the second pipe section is provided with a second limiting surface, and the first limiting surface and the second limiting surface face the pipe cavity of the flexible section;
a coil spring is installed in a tube cavity of the flexible section, an axis of the coil spring is along the length direction of the flexible section, the coil spring is abutted against the inner peripheral wall of the flexible section, and the coil spring is limited between the first limit surface and the second limit surface along the length direction of the flexible section.
2. The drain of claim 1 wherein:
the inner peripheral wall surface of the flexible section is a smooth surface extending along the length direction.
3. The drain of claim 1 wherein:
the inner peripheral wall surface of the first pipe section, the first limiting surface and the inner peripheral wall surface of the flexible section are in smooth transition in sequence; and/or
The inner peripheral wall surface of the second pipe section, the second limiting surface and the inner peripheral wall surface of the flexible section are in smooth transition in sequence.
4. The drain of claim 1 wherein:
the first limiting surface is a step surface, and/or the second limiting surface is a step surface.
5. The drain of claim 1 wherein:
the pipe body is a pipe with a circular cross section, the axes of the first pipe section, the flexible section and the second pipe section are overlapped, the difference between the inner diameter of the flexible section and the inner diameter of the first pipe section is more than or equal to two times of the wire diameter of the spiral spring, and/or the difference between the inner diameter of the flexible section and the inner diameter of the second pipe section is more than or equal to two times of the wire diameter of the spiral spring.
6. The drain of claim 1 wherein:
the inner diameter of the flexible section is 15 mm to 20 mm, the thread pitch of the spiral spring is 0.5 mm to 1 mm, and the wire diameter of the spiral spring is 0.3 mm to 0.8 mm.
7. The drain of claim 1 wherein:
the outer peripheral wall of the first pipe section is provided with a plurality of first annular convex ribs extending along the circumferential direction, and the first annular convex ribs are distributed at intervals along the length direction of the first pipe section; and/or
The outer peripheral wall of the second pipe section is provided with a plurality of second annular convex ribs extending along the circumferential direction, and the second annular convex ribs are distributed at intervals along the length direction of the second pipe section.
8. The drain of claim 1 wherein:
the length of the flexible section is 0.3 to 0.45 times of the total length of the pipe body.
9. The drain of any of claims 1 to 8 wherein:
the dimension of the coil spring is 0.75 to 1 times the dimension of the flexible section along the length direction of the flexible section.
10. Electrical equipment, including the organism, the organism has the outlet, its characterized in that:
the drain of any of claims 1 to 9, further comprising a drain pipe connected to the drain opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120432086.0U CN214404972U (en) | 2021-02-26 | 2021-02-26 | Drain pipe and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120432086.0U CN214404972U (en) | 2021-02-26 | 2021-02-26 | Drain pipe and electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214404972U true CN214404972U (en) | 2021-10-15 |
Family
ID=78026723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120432086.0U Active CN214404972U (en) | 2021-02-26 | 2021-02-26 | Drain pipe and electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214404972U (en) |
-
2021
- 2021-02-26 CN CN202120432086.0U patent/CN214404972U/en active Active
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