CN105422852B - Sealing structure and air door assembly - Google Patents
Sealing structure and air door assembly Download PDFInfo
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- CN105422852B CN105422852B CN201510808358.1A CN201510808358A CN105422852B CN 105422852 B CN105422852 B CN 105422852B CN 201510808358 A CN201510808358 A CN 201510808358A CN 105422852 B CN105422852 B CN 105422852B
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- damper
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- 238000007789 sealing Methods 0.000 title claims abstract description 203
- 238000005452 bending Methods 0.000 claims description 32
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The application relates to a sealing structure and an air door assembly, wherein the sealing structure comprises a sealing element body and a body fixing piece, and the sealing element body is fixed through the body fixing piece; the sealing member body comprises a fixing portion and a sealing portion which are connected with each other, the sealing portion comprises a first sealing portion and a second sealing portion, the first sealing portion and the second sealing portion are respectively located on two sides of the fixing portion, and the fixing portion is used for being connected with the body fixing member. The sealing structure is firm and reliable in fixing the sealing element body, the sealing element body is reasonable in stress and good in sealing effect, and the sealing structure is simple and convenient to install and detach.
Description
Technical Field
The application relates to the technical field of sealing, in particular to a sealing structure and a throttle assembly with the sealing structure.
Background
Air vents, such as an air inlet, an air outlet, etc., are generally arranged on an air flow channel of the air conditioner, and the air vents need to be closed in some working states and need to be opened in some working states, so that an air door capable of opening or closing the air vents is generally arranged at the air vents. The sealing structure of the existing air door is generally characterized in that a sealing ring is arranged around the air door, the sealing ring is directly clamped on the edge of the air door, and because air pressure is formed at the air port when the air door is in a closed state in the working state of the air conditioner, the sealing ring is often loose due to unstable fixation, and the sealing effect is affected. And the stress of the sealing ring is unbalanced, so that the sealing ring is easy to separate from a normal installation position, and the sealing effect is affected.
Disclosure of Invention
Accordingly, the present application is directed to a sealing structure with reliable fixation and a damper assembly with the sealing structure.
According to a first aspect of the present application, there is provided a seal structure comprising a seal body and a body mount by which the seal body is secured; the sealing member body comprises a fixing portion and a sealing portion which are connected with each other, the sealing portion comprises a first sealing portion and a second sealing portion, the first sealing portion and the second sealing portion are respectively located on two sides of the fixing portion, and the fixing portion is used for being connected with the body fixing member.
Preferably, the cross-sectional shape of the first sealing portion is a dogleg shape, including a first end connected to the second sealing portion and a second end in a free state, the second end being located at a side away from the second sealing portion in both the radial direction and the axial direction.
Preferably, a plurality of bending segments are formed between the first and second ends.
Preferably, three bending sections, namely a first bending section, a second bending section and a third bending section, which are sequentially connected are formed between the first end and the second end; the second bending section is respectively and vertically arranged with the first bending section and the third bending section.
Preferably, a sealing rib is provided on a surface of the first sealing portion remote from the second sealing portion.
Preferably, the cross-sectional shape of the second sealing part is n-shaped, including a first end connected with the first sealing part and a second end in a free state, the first end and the second end are disposed opposite to each other, and an n-shaped middle portion of the second sealing part is located at a side far from the first sealing part in a radial direction.
Preferably, the second sealing portion is formed with a bent portion at a portion near the second end, the bent portion being bent toward a side near the first sealing portion.
Preferably, a high point located at the outermost side is formed at the bent portion of the bent portion.
Preferably, the fixing portion is disposed between the first sealing portion and the second sealing portion, and includes a fixing plate and a fixing groove disposed at one side of the fixing plate.
Preferably, the fixing plate has a first end connected to the sealing part and a second end in a free state; the fixing plate is connected to the sealing portion through the first end, the first end is connected to a position where the first sealing portion and the second sealing portion are connected, and the second end extends to a side away from the second sealing portion in a radial direction.
Preferably, a positioning structure is provided on the fixing plate, and a sealing member body positioning structure is provided at a corresponding position on the body fixing member.
Preferably, the positioning structure on the fixing plate is a positioning hole or a positioning column; the sealing element body positioning structure is correspondingly a positioning column or a positioning hole or a positioning groove.
Preferably, the fixing groove is formed between the fixing plate and the first sealing part.
Preferably, the fixing groove is formed radially inward of the fixing plate and the first and second bending sections of the first sealing portion.
Preferably, the fixing groove and the body fixing piece are in interference fit.
According to a second aspect of the present application there is provided a damper assembly comprising a damper on which is provided a sealing arrangement, the first seal being for engagement with the damper, the second seal being in a free state.
Preferably, the sealing structure is fixed on the damper by a fixing device, and the fixing device is a detachable fixing device.
According to the application, the sealing element body can be conveniently fixed on the tuyere through the matching of the body fixing element and the fixing part, so that the sealing element body can be firmly and reliably fixed, and the sealing element body in a sealing state is reasonably stressed through the arrangement of the first sealing part and the second sealing part which are positioned at the two sides of the fixing part, and the sealing effect is in an optimal state; and, can be before fixing the seal body to the wind gap, first with seal body and body mounting together, then together fix to the wind gap through fixing device for seal structure's installation, dismantlement are all simple and convenient.
Drawings
The above and other objects, features and advantages of the present application will become more apparent from the following description of embodiments of the present application with reference to the accompanying drawings, in which:
FIG. 1 is an exploded view of a damper assembly of the present application;
FIG. 2 is a cross-sectional exploded view of the damper assembly of the present application;
FIG. 3 is a cross-sectional view of a seal body according to the present application;
fig. 4 is a partial cross-sectional view of the damper assembly of the present application.
Detailed Description
Various embodiments of the present application will be described in more detail below with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts. For clarity, the various features of the drawings are not drawn to scale.
For convenience of explanation, in the present application, a direction perpendicular to a plane on which the damper 3 is located is defined as an axial direction, a side corresponding to a right side in fig. 3 is defined as an axial direction inside, and a side corresponding to a left side in fig. 3 is defined as an axial direction outside; the direction perpendicular to the axial direction is defined as radial, and the side corresponding to the upper side in fig. 3 is defined as radial outside; the side corresponding to the lower side in fig. 3 is defined as the radially inner side.
The sealing structure is applied to a part structure needing sealing, such as a damper and the like, particularly a damper and the like needing to selectively open or close a wind gap in an air conditioner, and is particularly suitable for a damper structure needing translational movement. The sealing structure of the present application will be specifically described below by taking the case of application to a damper as an example.
As shown in fig. 1-2, in a preferred embodiment, the sealing structure of the present application includes a sealing body 1 and a body fixing member 2, wherein the sealing body 1 is fixed to a damper 3 by the body fixing member 2, and seals between the damper 3 and a tuyere (not shown) to be closed by the damper 3. The shape of the seal body 1 is matched with the shape of the air door 3 to be matched with the seal body, and the seal body 1 is in a ring shape and sleeved on the periphery of the air door 3 in general. The body mount 2 is generally plate-shaped, and may be a one-piece plate (see the embodiment shown in fig. 1), or may be separate pieces of small plates, or may be an annular plate, so long as the seal body 1 can be conveniently fixed to the damper 3. The shape of the air door 3 corresponds to the shape of the air opening to be closed, and when the air door 3 is covered on the air opening, the air door 3 is pressed on the air opening through a power mechanism (not shown in the figure), so that the sealing piece body 1 is pressed, and the sealing between the air door 3 and the air opening is realized. The sealing structure of the present application is fixed to the damper 3 by a fixing means 4.
As shown in fig. 3 to 4, the seal body 1 includes a fixing portion 11 and a sealing portion connected to each other, the sealing portion includes a first sealing portion 12 and a second sealing portion 13, the fixing portion 11 is used for fixing the seal body 1, and the first sealing portion 12 and the second sealing portion 13 are located on two sides of the fixing portion 11, respectively. In this way, the fixing position of the seal body 1 is located in the middle, so that the sealing part of the seal body 1 is stressed reasonably, and the seal body 1 can be stably fixed at the assembling position when the seal body is in a sealing state. The first sealing portion 12 is configured to cooperate with the damper 3, the second sealing portion 13 is in a free state, the first sealing portion 12 and the second sealing portion 13 are connected with each other, and the two sealing portions together achieve sealing between the damper 3 and the tuyere to be closed by the damper 3.
The cross-sectional shape of the first sealing portion 12 is generally folded, and includes a first end 121 connected to the second sealing portion 13 and a second end 122 in a free state, and the second end 122 is located on a side away from the second sealing portion 13 in both a radial direction and an axial direction. A plurality of bending sections are formed between the first end 121 and the second end 122. In a preferred embodiment, three bending sections, a first bending section 123, a second bending section 124, and a third bending section 125, are formed, which are connected in sequence. The three bending sections form an included angle, preferably, the included angle is 90 degrees, that is, the second bending section 124 is perpendicular to the first bending section 123 and the third bending section 125, respectively. In order to achieve a better seal between the first sealing portion 12 and the damper, it is preferable that a sealing bead 126 is provided on a surface of the first sealing portion 12 remote from the second sealing portion 13, in particular, on surfaces of the first, second and third bending sections 123, 124, 125 contacting the damper 3, the sealing bead 126 may be provided with one or more. The sealing ribs 126 are ribs protruding from these contacting surfaces. The cross-sectional shape of the sealing rib 126 may be semicircular, triangular or any other shape. The arrangement of the sealing ribs 126 can enable the sealing between the sealing element body 1 and the air door 3 to be more tight, and the sealing effect can be effectively improved. The surface of the air door 3 contacted with the first sealing part 12 is provided with a plurality of step surfaces 31 matched with the bending sections, so that the accurate positioning and installation between the sealing structure and the air door 3 in the application can be realized, the installation is simpler, and the positioning is more accurate.
The cross-sectional shape of the second sealing portion 13 is substantially n-shaped, and includes a first end 131 connected to the first sealing portion 12 and a second end 132 in a free state, the first end 131 and the second end 132 are disposed opposite to each other, and an intermediate portion of the n-shape of the second sealing portion 13 is located on a side away from the first sealing portion 12 in a radial direction. This structural arrangement of the second seal portion 13 can increase the elasticity thereof, and can achieve sufficient pressing of the seal body 1 when the seal structure in the present application is in the sealed state, enhancing the sealing effect of the second seal portion 13. In a preferred embodiment, the second sealing portion 13 is formed with a bent portion 133 at a portion near the second end 132. The bent portion 133 is bent toward a side near the first end 131, that is, toward the first sealing portion 12, such that a high point 1331 located at the outermost side in the axial direction is formed at the bent portion 133. When the sealing structure in the application is in a sealing state and presses the second sealing part 13, the high point 1331 is firstly contacted with the peripheral wall of the tuyere, so that the sealing from line to surface is realized, and the sealing effect can be effectively enhanced. Meanwhile, the bending part 133 bends towards the side close to the first sealing part 12, so that when the air door 3 opens the air opening and moves towards the position far away from the air opening, the second end 132 in a free state does not interfere with the inner wall of the part where the air opening is located, the moving efficiency of the air door can be improved, meanwhile, damage to the sealing part body 1 is not caused, and the service life of the sealing part body 1 can be prolonged.
The fixing portion 11 is disposed between the first sealing portion 12 and the second sealing portion 13, and includes a fixing plate 110 and a fixing groove 111. The fixing plate 110 has a first end 1101 connected to the sealing portion and a second end 1102 in a free state. The fixing plate 110 is connected to the sealing part through the first end 1101, preferably, the first end 1101 is connected to the first sealing part 12 and the second sealing part 13 at a position where the second end 112 extends in a radial direction to a side away from the second sealing part 13. Preferably, a positioning structure 1103 is disposed on the fixing plate 110, and the positioning structure 1103 may be a positioning hole (see fig. 3) or a positioning post (not shown in the drawing). A seal body positioning structure 21 is provided at a corresponding position on the body fixing member 2, and the seal body positioning structure 21 may be a positioning column (see fig. 4), a positioning hole or a positioning groove, respectively. When the positioning structure 1103 is a positioning hole, the positioning structure 21 of the sealing member body is a positioning column, and the positioning column is inserted into the positioning hole, so that the sealing member body 1 and the body fixing member 2 can be positioned, and meanwhile, the sealing member body 1 and the body fixing member 2 can be preassembled. When the positioning structure 1103 is a positioning post, the seal body positioning structure 21 is a positioning hole or a positioning groove (not shown), and the seal body 1 is positioned by inserting the positioning post into the positioning hole or the positioning groove.
As shown in fig. 3, the fixing groove 111 is provided at one side of the fixing plate 110, preferably, at a side close to the damper 3, and the outer edge of the body fixing member 2 may be inserted into the groove 111, thereby primarily fixing the sealing member body 1 to the body fixing member 2. In a preferred embodiment, the fixing groove 111 is formed between the fixing plate 110 and the first sealing part 12. In the embodiment shown in fig. 3-4, the fixing groove 111 is formed radially inward of the fixing plate 110 and the first and second bending sections 123, 124. Thus, when the outer edge portion of the body fixing member 2 is inserted into the fixing groove 11 and the body fixing member 2 is fixed to the damper 3, the inner side surface of the body fixing member 2 in the axial direction can be directly pressed against the first sealing portion 12, so that the first sealing portion 12 is pressed against the damper 3, firm installation and positioning of the sealing member body 1 are realized, and the firm installation and fixing of the sealing member body 1 can be maintained during the movement of the damper 3 and after long-time movement operation, so that the sealing reliability is increased, and the service life of the sealing member body 1 is prolonged. In order to make the fit of the edge portion of the body fixing member 2 with the fixing groove 111 more secure, preferably, the fit between the fixing groove 111 and the body fixing member 2 is an interference fit, the edge portion of the body fixing member 2 is clamped in the fixing groove by the elasticity of the sealing member body 1, and the seal member body 1 and the body fixing member 2 in a pre-assembled state can be formed as one body by combining the fit between the positioning structure 1103 on the fixing plate 110 and the seal member body positioning structure 21, so that the installation process of the seal structure in the present application becomes simple and easy to operate; and at the same time, the positioning of the seal body 1 is made more accurate.
Preferably, the first sealing part 12, the second sealing part 13 and the fixing part 11 are integrally formed and made of a material having elasticity.
As shown in fig. 2, the fixing device 4 is a detachable fixing device, such as a screw, a screw hole and a matching fixing device. Corresponding screw holes 41 and through holes 42 are respectively arranged on the air door 3 and the body fixing piece 2, and after the pre-assembled sealing piece body 1 and the body fixing piece 2 are placed at the corresponding positions of the air door 3, the screws 43 are inserted into the screw holes 41 and the through holes 42 and screwed down, so that the sealing piece body 1 and the body fixing piece 2 are firmly fixed on the air door 3 to form the air door assembly. The connecting structure is simple and convenient, and the connection is stable and firm. The fastening means 4 may also be other forms of detachable fastening means, such as a screw connection, a rivet connection, etc.
In the sealing structure, the sealing element body 1 can be conveniently fixed on the tuyere 3 through the matching of the body fixing element 2 and the fixing part 11, so that the sealing element body 1 can be firmly and reliably fixed, and the sealing element body in a sealing state can be reasonably stressed through the arrangement of the first sealing part 12 and the second sealing part 13 positioned at the two sides of the fixing part 11, and the sealing effect is in an optimal state; in addition, before the sealing element body 1 is fixed on the tuyere 3, the sealing element body 1 and the body fixing element 2 can be assembled together, and then the sealing element body and the body fixing element 2 are fixed on the tuyere 3 together through the fixing device 4, so that the sealing structure is simple and convenient to install and detach.
It should be noted that in the present application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: it is apparent that the above examples are only illustrative of the present application 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. And obvious variations or modifications thereof are contemplated as falling within the scope of the present application.
Claims (12)
1. A sealing structure, characterized by comprising a sealing element body (1) and a body fixing member (2), wherein the sealing element body (1) is fixed by the body fixing member (2); the sealing element body (1) comprises a fixing part (11) and a sealing part which are connected with each other, the sealing part comprises a first sealing part (12) and a second sealing part (13), the first sealing part (12) and the second sealing part (13) are respectively positioned at two sides of the fixing part (11), and the fixing part (11) is used for being connected with the body fixing element (2);
the cross section of the first sealing part (12) is in a folded line shape, and comprises a first end (121) connected with the second sealing part (13) and a second end (122) in a free state, wherein the second end (122) is positioned at one side far away from the second sealing part (13) in the radial direction and the axial direction;
sealing ribs (126) are arranged on the surface of the first sealing part (12) away from the second sealing part (13);
the cross section of the second sealing part (13) is n-shaped, and comprises a first end (131) connected with the first sealing part (12) and a second end (132) in a free state, wherein the first end (131) and the second end (132) are oppositely arranged, and the n-shaped middle part of the second sealing part (13) is positioned at one side far away from the first sealing part (12) in the radial direction;
the fixing part (11) is arranged between the first sealing part (12) and the second sealing part (13) and comprises a fixing plate (110) and a fixing groove (111), wherein the fixing groove (111) is arranged on one side of the fixing plate (110);
the fixing groove (111) is formed between the fixing plate (110) and the first sealing portion (12).
2. The sealing structure according to claim 1, characterized in that a plurality of bending segments are formed between the first end (121) and the second end (122) of the first sealing part.
3. The sealing structure according to claim 2, wherein three sequentially connected bending sections, a first bending section (123), a second bending section (124) and a third bending section (125), are formed between the first end (121) and the second end (122) of the first sealing portion; the second bending section (124) is respectively and vertically arranged with the first bending section (123) and the third bending section (125).
4. The seal structure according to claim 1, wherein the second seal portion (13) is formed with a bent portion (133) at a portion near the second end (132) of the second seal portion, the bent portion (133) being bent toward a side near the first seal portion (12).
5. The seal structure according to claim 4, wherein a high point (1331) located at the outermost side is formed at the bent portion of the bent portion (133).
6. The sealing structure according to claim 1, characterized in that the fixed plate (110) has a first end (1101) connected to the sealing portion and a second end (1102) in a free state; the fixing plate (110) is connected to the sealing part through the first end (1101), the first end (1101) is connected to a position where the first sealing part (12) and the second sealing part (13) are connected, and the second end (112) extends to a side far away from the second sealing part (13) in a radial direction.
7. The sealing structure according to claim 6, characterized in that a positioning structure (1103) is provided on the fixing plate (110), and a sealing member body positioning structure (21) is provided at a corresponding position on the body fixing member (2).
8. The sealing structure according to claim 7, wherein the positioning structure (1103) on the fixing plate (110) is a positioning hole or a positioning post; the sealing element body positioning structure (21) is a positioning column or a positioning hole or a positioning groove correspondingly.
9. The sealing structure according to claim 1, wherein the fixing groove (111) is formed radially inward of the fixing plate (110) and the first bending section (123) and the second bending section (124) of the first sealing portion (12).
10. The sealing arrangement according to claim 1, characterized in that the fixing groove (111) and the body fixing (2) are an interference fit.
11. A damper assembly comprising a damper (3), characterized in that a sealing arrangement according to any one of claims 1-10 is provided on the damper (3), the first sealing part (12) being intended to cooperate with the damper (3), the second sealing part (13) being in a free state.
12. The damper assembly according to claim 11, wherein the sealing structure is fixed to the damper (3) by a fixing device (4), the fixing device (4) being a detachable fixing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510808358.1A CN105422852B (en) | 2015-11-19 | 2015-11-19 | Sealing structure and air door assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510808358.1A CN105422852B (en) | 2015-11-19 | 2015-11-19 | Sealing structure and air door assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422852A CN105422852A (en) | 2016-03-23 |
| CN105422852B true CN105422852B (en) | 2023-09-08 |
Family
ID=55501288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510808358.1A Active CN105422852B (en) | 2015-11-19 | 2015-11-19 | Sealing structure and air door assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422852B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943934B (en) * | 2021-02-04 | 2023-04-21 | 泉州市泉航工程机械有限公司 | Front end sealing structure of machine tool spindle |
| CN112944649A (en) * | 2021-03-09 | 2021-06-11 | 珠海格力电器股份有限公司 | Air port assembly and air duct machine |
| CN113464652A (en) * | 2021-08-06 | 2021-10-01 | 深圳市江南伟业模具塑胶有限公司 | Plastic part sealing structure and processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4193605A (en) * | 1978-05-05 | 1980-03-18 | American Hardware & Paint Co., Inc. | Seal for damper blades |
| CN203305818U (en) * | 2013-05-30 | 2013-11-27 | 扬州高新橡塑有限公司 | Door seal strip of railway vehicle |
| CN205155137U (en) * | 2015-11-19 | 2016-04-13 | 珠海格力电器股份有限公司 | Sealing structure and air door assembly |
-
2015
- 2015-11-19 CN CN201510808358.1A patent/CN105422852B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4193605A (en) * | 1978-05-05 | 1980-03-18 | American Hardware & Paint Co., Inc. | Seal for damper blades |
| CN203305818U (en) * | 2013-05-30 | 2013-11-27 | 扬州高新橡塑有限公司 | Door seal strip of railway vehicle |
| CN205155137U (en) * | 2015-11-19 | 2016-04-13 | 珠海格力电器股份有限公司 | Sealing structure and air door assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422852A (en) | 2016-03-23 |
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