Gear switch with sealing structure

Abstract

The utility model belongs to the technical field of sealing structures, and discloses a gear switch with a sealing structure, which comprises a shell, a push rod, a sealing flat gasket, a plug assembly and a bushing, the bushing is sleeved inside the plug assembly, one end of the bushing is connected with the sealing flat gasket, the other end of the bushing is connected with the plug assembly, one end of the plug assembly close to the bushing is connected with the sealing flat gasket, and the other end of the bushing is connected with the sealing flat gasket. The end, away from the lining, of the sealing flat gasket is connected with the ejector rod, the ejector rod, the sealing flat gasket, the plug assembly and the lining are all installed in the shell, and the two ends of the sealing flat gasket are each provided with a sealing structure. According to the utility model, three sealing positions are formed among the sealing structure, the shell and the plug assembly through extrusion, so that the sealing effect is more reliable, meanwhile, compared with a traditional sealing structure, a sealing ring is canceled, the sealing of the switch can be realized only by matching the sealing flat gasket with the shell and the plug assembly, and the material and labor costs are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of sealing structure technology, specifically to a gear switch with a sealing structure. Background Technology

[0002] The gear shift switch is a key component in a car's transmission system, responsible for sensing and transmitting gear position signals. It is typically mounted on the transmission and works closely with the shift mechanism to accurately detect changes in the shift lever's position and convert these signals into electrical signals that are transmitted to the vehicle's electronic control unit (ECU). The accuracy and reliability of the gear shift switch are crucial for the normal operation of the vehicle, directly affecting the smoothness of shifting and the driving experience. A malfunction can lead to problems such as incorrect gear display and difficulty shifting.

[0003] Most gear shift switches on the market currently use a combined sealing method, which uses a rubber sealing gasket and a rectangular / O-shaped cross-section sealing ring to squeeze each other to achieve a switch seal, preventing transmission fluid from entering the switch and contaminating the contacts, causing poor contact. However, this sealing method is costly, has many parts, lacks positioning, and is prone to missing or misplacing the sealing ring during assembly, resulting in seal failure. Moreover, this combined sealing method relies solely on the squeezing of the sealing gasket and sealing ring at the contact point for sealing, which is not very reliable. Utility Model Content

[0004] The purpose of this invention is to provide a gear switch with a sealing structure to overcome the problems existing in the prior art. This invention enables the sealing structure to form three sealing positions with the outer shell and the plug assembly through compression, making the sealing effect more reliable. At the same time, compared with the traditional sealing structure, the sealing ring is eliminated, and the switch sealing can be achieved by using a sealing flat gasket in conjunction with the outer shell and the plug assembly, which effectively reduces material and labor costs.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A stop switch with a sealing structure includes a housing, a push rod, a sealing flat gasket, a plug assembly, and a bushing;

[0007] The bushing is fitted inside the plug assembly. One end of the bushing is connected to the sealing gasket, and the other end is connected to the plug assembly. The end of the plug assembly closer to the bushing is connected to the sealing gasket, and the end of the sealing gasket furthest from the bushing is connected to the push rod. The push rod, sealing gasket, plug assembly, and bushing are all installed inside the housing.

[0008] The sealing gasket has sealing structures at both ends;

[0009] Furthermore, the sealing structure includes a first protrusion structure and a second protrusion structure;

[0010] The first protruding structure is arranged at one end of the sealing flat gasket close to the ejector rod, and the second protruding structure is arranged at one end of the sealing flat gasket close to the plug assembly.

[0011] Further, a first positioning groove is formed in the inside of the shell, and the first positioning groove is matched with the first protruding structure.

[0012] Further, the width of the first positioning groove and the first protruding structure is 1.6-1.85 mm.

[0013] Further, a second positioning groove is formed at one end of the plug assembly close to the sealing flat gasket, and the second positioning groove is matched with the second protruding structure.

[0014] Further, the width of the second positioning groove and the second protruding structure is 1.475-1.525 mm.

[0015] Further, one end of the plug assembly close to the bushing is connected with the middle part of the sealing flat gasket.

[0016] Further, the end of the ejector rod away from the sealing flat gasket penetrates the shell.

[0017] Further, the end of the plug assembly away from the sealing flat gasket is located outside the shell.

[0018] Further, the sealing flat gasket is a rubber gasket.

[0019] The above technical scheme has the following advantages or beneficial effects:

[0020] The utility model provides a gear switch with sealing structure, through setting up sealing structure at both ends of sealing flat gasket respectively, make sealing structure and shell and plug assembly between through extrusion formed 3 sealed positions, can make switch have better oil proof performance, avoid switch because oil liquid / oil gas enters and cause contact point pollution, on off failure, make sealing effect more reliable, simultaneously still compare to traditional sealing structure cancelled sealing ring, only use sealing flat gasket cooperation shell and plug assembly can realize switch sealing, effectively reduced material and manual cost.

[0021] Further, by setting the first protruding structure and the second protruding structure, when the switch is riveted and sealed, the plug assembly moves to the left under the riveting pressure, i.e. moves to the sealing flat gasket direction, extrudes the sealing flat gasket to the switch shell, further makes the plug assembly and the sealing flat gasket fully adhere to each other through the third sealing position, generates the first sealing position and the second sealing position between the sealing flat gasket and the shell, further makes the shell and the sealing flat gasket fully adhere to each other through the first sealing position and the second sealing position, the oil liquid direction moves from the ejector rod to the sealing flat gasket direction, and thus realizes the switch sealing, prevents the oil liquid from entering the switch interior, and the sealing effect is more reliable.

[0022] Further, by opening the first positioning groove inside the shell, the first protruding structure of the sealing flat gasket is avoided from being installed eccentrically, the first protruding structure inside the groove is deformed (radially expanded) under the action of axial riveting pressure, and is completely matched with the first positioning groove, so that the sealing effect is further enhanced; meanwhile, compared with the old structure, the sealing ring is omitted, the sealing flat gasket is used in cooperation with the first positioning groove of the shell, switch sealing can be realized, and material and labor costs are effectively reduced.

[0023] Further, by opening the second positioning groove at one end of the plug assembly close to the sealing flat gasket, the first protruding structure of the sealing flat gasket is avoided from being installed eccentrically, the second protruding structure inside the groove is deformed (radially expanded) under the action of axial riveting pressure, and is completely matched with the second positioning groove, so that the sealing effect is further enhanced; meanwhile, compared with the old structure, the sealing ring is omitted, the sealing flat gasket is used in cooperation with the second positioning groove of the plug assembly, switch sealing can be realized, and material and labor costs are effectively reduced.

[0024] Further, the rubber material has excellent elasticity and deformation recovery ability, can tightly fill the micro gaps of the contact surface through compression deformation, forms an effective sealing barrier, and compared with the hard plastic or metal gasket, the rubber gasket can better adapt to the size deviation (such as thermal expansion and mechanical vibration) under the dynamic working condition of the gear switch, and ensures the sealing reliability during long-term use. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic view of the gear switch with the sealing structure of the utility model;

[0026] Figure 2 It is a sealing structure partial schematic view of the gear switch with the sealing structure of the utility model;

[0027] In the figure, 1 is a shell, 2 is a top rod, 3 is a sealing flat gasket, 31 is a first protruding structure, 32 is a second protruding structure, 4 is a plug assembly, 5 is a bushing, 6 is a first sealing position, 7 is a second sealing position, and 8 is a third sealing position. DETAILED DESCRIPTION

[0028] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0029] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0030] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0031] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection, or communication; it can be directly connected, or indirectly connected through intermediate medium, or the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0032] In the utility model, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0033] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0034] Referring to Figure 1 The utility model provides a gear switch with sealing structure, including shell 1, top rod 2, sealing flat gasket 3, plug assembly 4 and bush 5,

[0035] Bush 5 is sleeved in the inside of plug assembly 4, and one end of bush 5 is connected with sealing flat gasket 3, and the other end is connected with plug assembly 4, and the end of plug assembly 4 close to bush 5 is connected with the middle part of sealing flat gasket 3, and the end of sealing flat gasket 3 away from bush 5 is connected with top rod 2, and top rod 2, sealing flat gasket 3, plug assembly 4 and bush 5 are all installed in the inside of shell 1, and the end of top rod 2 away from sealing flat gasket 3 penetrates shell 1, and the end of plug assembly 4 away from sealing flat gasket 3 is located at the outside of shell 1, and both ends of sealing flat gasket 3 are provided with sealing structure respectively,

[0036] Preferably, sealing flat gasket 3 is rubber pad,

[0037] Preferably, the diameter of sealing flat gasket 3 is 22.3 mm, and the error size is 0.1 mm,

[0038] Referring to Figure 1 And Figure 2 The sealing structure includes first convex structure 31 and second convex structure 32, and the first convex structure 31 is arranged at the end of sealing flat gasket 3 close to top rod 2, and the inside of shell 1 is provided with first positioning groove, and the first positioning groove is matched with the first convex structure 31, and the second convex structure 32 is arranged at the end of sealing flat gasket 3 close to plug assembly 4, and the end of plug assembly 4 close to sealing flat gasket 3 is provided with second positioning groove, and the second positioning groove is matched with the second convex structure 32, and when the switch is riveted and pressed, plug assembly 4 moves to the left under the riveting pressure, that is, moves to the direction of sealing flat gasket 3, and sealing flat gasket 3 is pressed to the switch shell 1, and then the third sealing position 8 between sealing flat gasket 3 and plug assembly 4 is generated, and plug assembly 4 and sealing flat gasket 3 are further fully attached through the third sealing position 8, and the first sealing position 6 and the second sealing position 7 between sealing flat gasket 3 and shell 1 are generated, and shell 1 and sealing flat gasket 3 are further fully attached through the first sealing position 6 and the second sealing position 7, and the direction of oil moves from top rod 2 to sealing flat gasket 3, and then the switch is sealed, and the oil enters the inside of the switch, and the sealing effect is more reliable,

[0039] Preferably, the width of the first positioning groove and the first protruding structure 31 is 1.6 mm;

[0040] Preferably, the width of the first positioning groove and the first protruding structure 31 can also be 1.8 mm;

[0041] Preferably, the width of the first positioning groove and the first protruding structure 31 can also be 1.85 mm;

[0042] Preferably, the thickness of the first protruding structure 31 is 1-1.4 mm;

[0043] Preferably, the width of the second positioning groove and the second protruding structure 32 is 1.475 mm;

[0044] Preferably, the width of the second positioning groove and the second protruding structure 32 can also be 1.5 mm;

[0045] Preferably, the width of the second positioning groove and the second protruding structure 32 can also be 1.525 mm;

[0046] Preferably, the thickness of the second protruding structure 32 is 1 mm.

[0047] The structure and working principle of the utility model will be further described below:

[0048] The utility model discloses a gear switch with sealing structure, uses the device, when switch riveting pressure seal, plug assembly 4 moves to left side under the riveting force, that is, moves to sealing flat gasket 3 direction, extrudes sealing flat gasket 3 to switch shell 1, and then makes third sealing position 8 between sealing flat gasket 3 and plug assembly 4, further makes plug assembly 4 and sealing flat gasket 3 between the full adhesion through third sealing position 8, and first sealing position 6 and second sealing position 7 between sealing flat gasket 3 and shell 1, further makes shell 1 and sealing flat gasket 3 between the full adhesion through first sealing position 6 and second sealing position 7, and oil direction moves from top rod 2 to sealing flat gasket 3 direction, and then realizes switch sealing, prevents oil from entering switch inside.

[0049] The first positioning groove and the second positioning groove not only play the positioning role of sealing flat gasket 3, but also are deformed (radially expanded) under the axial riveting force of the first protruding structure 31 and the second protruding structure 32 in the grooves, respectively fully adhere to the first positioning groove and the second positioning groove, and further strengthen the sealing effect; simultaneously, compared with the old structure, the sealing position of the utility model increases from 1 to 3, and the sealing ring is saved, can realize the reduction of cost while improving the sealing reliability, makes the structure of the utility model make the switch have better oil-proof performance, avoids the contact contamination and on-off failure of the switch caused by oil / oil gas entering.

[0050] To demonstrate the excellent oil-proof performance of the present application, the following experiments are verified:

[0051]

[0052] The basic principle and main features of the present application and the advantages of the present application are shown and described above. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0053] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand. The above content only illustrates the technical idea of the present application, and cannot limit the protection scope of the present application. Any modification made on the basis of the technical solutions shall fall within the protection scope of the claims of the present application.

Claims

1. A stop switch with a sealing structure, characterized in that, Includes housing (1), top rod (2), sealing gasket (3), plug assembly (4) and bushing (5); The bushing (5) is fitted inside the plug assembly (4). One end of the bushing (5) is connected to the sealing gasket (3), and the other end is connected to the plug assembly (4). The end of the plug assembly (4) near the bushing (5) is connected to the sealing gasket (3), and the end of the sealing gasket (3) away from the bushing (5) is connected to the top rod (2). The top rod (2), the sealing gasket (3), the plug assembly (4), and the bushing (5) are all installed inside the outer shell (1). The sealing gasket (3) has sealing structures at both ends.

2. A stop switch with a sealing structure according to claim 1, characterized in that, The sealing structure includes a first protrusion structure (31) and a second protrusion structure (32); The first protrusion structure (31) is located at one end of the sealing gasket (3) near the top rod (2), and the second protrusion structure (32) is located at one end of the sealing gasket (3) near the plug assembly (4).

3. A stop switch with a sealing structure according to claim 2, characterized in that, The outer shell (1) has a first positioning groove inside, which is adapted to the first protrusion structure (31).

4. A stop switch with a sealing structure according to claim 3, characterized in that, The width of the first positioning groove and the first protrusion structure (31) is 1.6-1.85 mm.

5. A stop switch with a sealing structure according to claim 2, characterized in that, The plug assembly (4) has a second positioning groove at one end near the sealing gasket (3), and the second positioning groove is adapted to the second protrusion structure (32).

6. A stop switch with a sealing structure according to claim 5, characterized in that, The width of the second positioning groove and the second protrusion structure (32) is 1.475-1.525 mm.

7. A stop switch with a sealing structure according to claim 1, characterized in that, The plug assembly (4) is connected to the middle of the sealing gasket (3) at one end near the bushing (5).

8. A stop switch with a sealing structure according to claim 1, characterized in that, The end of the top rod (2) away from the sealing gasket (3) passes through the outer shell (1).

9. A stop switch with a sealing structure according to claim 1, characterized in that, The end of the plug assembly (4) away from the sealing gasket (3) is located outside the housing (1).

10. A stop switch with a sealing structure according to claim 1, characterized in that, The sealing gasket (3) is a rubber gasket.

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