Sealing ring, sealing structure and vehicle-mounted display

Abstract

The utility model relates to the technical field of engineering vehicles, and discloses a sealing ring, a sealing structure and a vehicle-mounted displayer. The sealing ring comprises a sealing ring body which is in a circular ring shape, and the cross section of the sealing ring body is of a columnar structure; the annular tensioning groove is formed in the annular surface of the top end of the sealing ring body in a downward sunken manner; the sealing convex ring assembly comprises anti-falling convex rings and sealing convex rings, the outer circumferential wall and the inner circumferential wall of the sealing ring body are each provided with a plurality of anti-falling convex rings which are arranged at intervals in the vertical direction, and the groove outer side wall and the groove inner side wall of the annular tensioning groove are each provided with a plurality of sealing convex rings which are arranged at intervals in the vertical direction in a protruding mode; and the plurality of anti-falling convex rings extend upwards in an inclined manner and extend away from the direction of the annular tensioning groove. The sealing structure comprises a first connecting piece, a second connecting piece and the sealing ring, wherein the first connecting piece and the second connecting piece are connected. The vehicle-mounted display comprises the sealing structure. The anti-disengagement capability and the connection self-locking force of the sealing ring after installation can be improved.

Description

Technical Field

[0001] The present application belongs to the technical field of engineering vehicles, and specifically, relates to a sealing ring, a sealing structure and a vehicle-mounted display. Background Art

[0002] Engineering vehicles include a large number of important electronic components. However, the working environment of engineering vehicles is generally very harsh, and there are high requirements for the waterproof sealing of the product, generally requiring IPX5 waterproof. Figure 1 and Figure 2 As shown, the sealing method for electronic components generally includes the use of a circular or U-shaped cross-section sealing ring. However, the sealing ring is easy to fall out of the installation groove during the disassembly process and the sealing effect is limited. It is necessary to increase the number of screws or increase the tightening force of the screws to strengthen the connection strength between the connecting rib inserted in the installation groove and the sealing ring, resulting in increased costs and reduced installation efficiency. Summary of the invention

[0003] The purpose of the present application is to provide a sealing ring, a sealing structure and a vehicle-mounted display, so as to improve the anti-slip capability and the self-locking force of the connection of the sealing ring after installation.

[0004] In order to achieve the above-mentioned object, the present application provides a sealing ring on one hand, the sealing ring comprising:

[0005] The sealing ring body is in the shape of a ring and has a columnar cross section;

[0006] An annular tightening groove is formed on the top annular surface of the sealing ring body in a downwardly concave manner; and

[0007] The sealing convex ring assembly comprises a plurality of anti-dropping convex rings and a plurality of sealing convex rings. The outer peripheral wall of the body and the inner peripheral wall of the body of the sealing ring body are respectively provided with a plurality of anti-dropping convex rings arranged at intervals in the upper and lower parts. The outer side wall and the inner side wall of the annular tightening groove are respectively provided with a plurality of sealing convex rings arranged at intervals in the upper and lower parts.

[0008] Among them, a plurality of anti-slip convex rings all extend obliquely upward and away from the direction of the annular tightening groove.

[0009] In some embodiments, a plurality of anti-dropping protruding rings are distributed in a serrated shape on the outer peripheral wall of the main body or the inner peripheral wall of the main body.

[0010] In some embodiments, in the cross section of the sealing ring, the sealing protrusion is in the shape of an arc.

[0011] In some embodiments, the radial distance between the anti-dropping protrusion and the corresponding outer peripheral wall of the body or the inner peripheral wall of the body is greater than the radial distance between the sealing protrusion and the corresponding outer side wall of the groove or the inner side wall of the groove.

[0012] In some embodiments, the top of the annular tensioning groove is formed to expand upward.

[0013] In some embodiments, the bottom of the annular tensioning groove is formed with an arc bottom surface.

[0014] A second aspect of the present application provides a sealing structure, the sealing structure comprising a first connecting member and a second connecting member connected to each other and the above-mentioned sealing ring;

[0015] The first connecting member includes an annular connecting rib, the second connecting member includes an annular mounting groove, the sealing ring is inserted into the annular mounting groove with interference fit, and the annular connecting rib is inserted into the annular tightening groove of the sealing ring with interference fit.

[0016] In some embodiments, the cross section of the annular connecting rib is columnar and is formed with a plurality of sealing ring grooves spaced apart from each other; and / or, the bottom contour line of the columnar cross section of the annular connecting rib is an arc line.

[0017] In some embodiments, the first connecting member and the second connecting member are fastened together by a plurality of locking screws arranged at intervals in an annular shape.

[0018] A third aspect of the present application provides a vehicle-mounted display, which includes the above-mentioned sealing structure.

[0019] In the technical solution of the present application, the annular sealing ring can be cushioned between the protruding member with an annular protrusion and the concave member of the annular concave portion that are mutually inserted and arranged. Due to the setting mode that the anti-dropout protruding ring extends obliquely upward and extends in the direction away from the annular tightening groove, when the sealing ring is installed downward into the annular recessed portion, the deformation of the anti-dropout protruding ring arranged at intervals up and down is small, so that the assembly is more labor-saving; furthermore, when the sealing ring installed in the annular recessed portion is subjected to an upward pulling force, the deformation of the anti-dropout protruding ring will be greatly increased, thereby greatly increasing the contact force and friction between the anti-dropout protruding ring and the inner wall of the annular recessed portion, making it difficult for the anti-dropout protruding ring to be pulled out from the inner wall, thereby improving the anti-dropout ability of the sealing ring. In addition, after the protruding member of the annular protruding portion is inserted into the annular tightening groove, the sealing protruding rings arranged at intervals up and down can more effectively clamp the annular protruding portion, thereby increasing the connection strength and sealing performance between the protruding member and the annular tightening groove. Thirdly, the sealing convex rings arranged at intervals up and down and the anti-dropping convex rings arranged at intervals up and down can form a multi-layer sealing structure between the convex parts with annular convex parts and the concave parts with annular concave parts that are inserted into each other, which greatly improves the sealing performance.

[0020] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0022] Figure 1 It is a structural schematic diagram of a sealing structure of a sealing ring with a circular cross section in the prior art;

[0023] Figure 2 It is a structural schematic diagram of a sealing structure of a sealing ring with a U-shaped cross section in the prior art;

[0024] Figure 3 It is a structural schematic diagram of a sealing structure according to a specific embodiment of the present application;

[0025] Figure 4 for Figure 3 A cross-sectional view of the sealing ring of the middle sealing structure;

[0026] Figure 5 It is a cross-sectional view of a sealing ring according to another embodiment of the present application.

[0027] Description of Reference Numerals

[0028] A Annular connecting rib 112 Inner wall of groove

[0029] B Annular mounting groove 120 Anti-drop convex ring

[0030] C Sealing ring 130 Sealing convex ring

[0031] W Radial spacing 140 Body outer wall

[0032] 100 Sealing ring body 150 Inner peripheral wall of body

[0033] 110 annular tightening groove 200 first connecting member

[0034] 111 groove outer side wall 300 second connecting member

[0035] W1 First radial distance W2 Second radial distance DETAILED DESCRIPTION

[0036] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0037] The sealing ring, sealing structure and vehicle-mounted display according to the present application are described below with reference to the accompanying drawings.

[0038] It should be noted that, in the present application, unless otherwise stated, "upper, lower, front, rear, inner, outer" generally refers to the directions shown in the accompanying drawings. When there is no reference to the accompanying drawings, "inner" and "outer" refer to the lateral inside and outside with the center of the sealing ring C as the reference.

[0039] The present application discloses a new type of sealing ring. Figure 3 and Figure 4 As shown, a sealing ring C in a specific embodiment includes:

[0040] The sealing ring body 100 is annular and has a columnar cross section;

[0041] An annular tightening groove 110 is formed on the top annular surface of the sealing ring body 100 in a downwardly concave manner;

[0042] The sealing convex ring assembly includes a plurality of anti-dropping convex rings 120 and a plurality of sealing convex rings 130. The outer peripheral wall 140 and the inner peripheral wall 150 of the sealing ring body 100 are respectively provided with a plurality of anti-dropping convex rings 120 arranged in an upper and lower intervals. The outer side wall 111 and the inner side wall 112 of the annular tightening groove 110 are respectively provided with a plurality of sealing convex rings 130 arranged in an upper and lower intervals.

[0043] The plurality of anti-dropping protruding rings 120 all extend obliquely upward and away from the direction of the annular tightening groove 110 .

[0044] Specifically, in the process of inserting the sealing ring C downward into the installation groove, since the assembly direction of the sealing ring C is opposite to the extension direction of the anti-dropping convex ring 120, see Figure 3 , so the deformation of the anti-slip convex ring 120 is small, and assembly is labor-saving. When the assembled sealing ring C is subjected to an upward pulling force, the anti-slip convex ring 120 extending obliquely upward and extending in the direction away from the annular tightening groove 110 will abut against the wall surface of the installation groove and the deformation will increase, which greatly improves the contact force and friction between the anti-slip convex ring 120 and the concave wall surface of the installation groove. Compared with the circular or U-shaped cross-section sealing ring (such as the conventional sealing ring structure) without the anti-slip convex ring 120, Figure 1 or Figure 2 As shown), the deformation of the sealing ring C during the pulling-out process is greatly increased, making it more difficult for the anti-slip convex ring 120 to be separated from the assembly position, while greatly improving the anti-slip ability of the sealing ring C without affecting the assemblability of the sealing ring.

[0045] After the connecting rib that is plugged into the mounting groove is inserted into the annular tightening groove 110, the sealing convex rings 130 arranged at intervals above and below can more effectively clamp the connecting rib, and improve the connection strength between the connecting rib and the sealing ring C. Due to the improvement of the aforementioned anti-slipping ability, that is, the connection strength between the mounting groove and the sealing ring C is improved, the connection strength and self-locking ability between the mounting groove and the connecting rib can also be enhanced. On this basis, the sealing convex rings 130 arranged at intervals in multiple layers and the anti-slipping convex rings 120 arranged at intervals in multiple layers can also form a multi-layer sealing structure between the connecting rib and the mounting groove, greatly improving the sealing performance.

[0046] Of course, the number of the anti-dropping convex ring 120 and the sealing convex ring 130 is not limited to the number shown in the figure, and can also be more.

[0047] In this embodiment, if Figure 4 As shown, a plurality of anti-dropping protruding rings 120 are distributed in a zigzag shape on the outer peripheral wall 140 or the inner peripheral wall 150 of the body.

[0048] Specifically, such a configuration can not only reduce the deformation of the anti-slip ring 120 during the downward assembly of the sealing ring C, but also amplify the deformation of the anti-slip ring 120 during the pulling-out process, thereby further improving the assemblability and installation stability of the sealing ring C.

[0049] Of course, the plurality of anti-dropping protruding rings 120 are not limited to being distributed in a zigzag shape on the outer peripheral wall 140 or the inner peripheral wall 150 of the body, and may also be distributed in a zigzag shape as shown in FIG. Figure 5 The arc shape shown, etc.

[0050] Whether the sealing ring C will be separated after being subjected to tension not only needs to consider the connection strength between the sealing ring C and the installation groove, but also needs to prevent the connecting rib from providing excessive tension to the sealing ring C. Figure 4 As shown, in the cross section of the sealing ring C, the sealing convex ring 130 is in an arc shape.

[0051] Such a configuration can ensure the stability of the connection strength between the annular tightening groove 110 accommodating the connecting rib and the connecting rib, so that the connecting rib can be smoothly inserted into the annular tightening groove 110, and when the connecting rib is pulled out, the sealing ring C will not be pulled out due to excessive connection strength between the connecting rib and the sealing ring C.

[0052] In order to further ensure the installation stability of the sealing ring C. In this embodiment, Figure 4 As shown, the radial spacing W between the anti-dropping protrusion ring 120 and the corresponding body outer peripheral wall 140 or body inner peripheral wall 150 is greater than the radial spacing W between the sealing protrusion ring 130 and the corresponding groove outer side wall 111 or groove inner side wall 112.

[0053] See also Figure 4Since the first radial spacing W1 is greater than the second radial spacing W2, after assembly, it can ensure that the deformation of the anti-dropping convex ring 120 is greater than the deformation of the sealing convex ring 130, that is, the connection strength between the sealing ring C and the mounting groove is greater than the connection strength between the sealing ring C and the connecting rib, so as to further improve the stability of the sealing ring C during the disassembly and assembly process.

[0054] The number of the anti-dropping protruding rings 120 may also be greater than the number of the sealing protruding rings 130 to ensure a comparative relationship between the connection strength between the sealing ring C and the mounting groove and the connection strength between the sealing ring C and the connecting rib.

[0055] In order to facilitate the assembly of the connecting rib and the annular tightening groove 110, in this embodiment, Figure 4 As shown, the top of the annular tightening groove 110 is formed to expand upward.

[0056] Specifically, see Figure 4 Due to the upward flaring of the annular tightening groove 110, during the process of inserting the connecting rib into the annular tightening groove 110, the deformation of the annular tightening groove 110 gradually increases from top to bottom, that is, the assembly resistance of the connecting rib is increasing, and under a certain downward pressure, the connecting rib can always obtain the corresponding maximum insertion depth, thereby improving the connection strength between the two.

[0057] In this embodiment, if Figure 4 As shown, a circular arc bottom surface is formed at the bottom of the annular tightening groove 110. Specifically, the setting of the circular arc bottom surface of the annular tightening groove 110 is conducive to ensuring that the connecting rib obtains the maximum insertion depth, thereby increasing the combination effect of the connecting rib and the sealing ring C.

[0058] This application accordingly protects a sealing structure, such as Figure 3 and Figure 4 As shown, a sealing structure in a specific embodiment includes a first connecting member 200 and a second connecting member 300 connected to each other and the sealing ring C mentioned above;

[0059] The first connecting member 200 includes an annular connecting rib A, the second connecting member 300 includes an annular mounting groove B, the sealing ring C is inserted into the annular mounting groove B with an interference fit, and the annular connecting rib A is inserted into the annular tightening groove 110 of the sealing ring C with an interference fit.

[0060] Specifically, see Figure 4Due to the above-mentioned beneficial effects of the sealing ring C, after the second connector 300 and the first connector 200 are respectively assembled with the sealing ring C in an interference fit, the anti-slip ability, self-locking ability and sealing performance of the sealing ring C can be greatly improved. Compared with the existing sealing structure using a general foamed silicone strip for sealing, the sealing structure of the present application does not involve the bonding process of the foamed silicone strip, and is easy to assemble, saves manpower and is environmentally friendly; compared with the existing sealing structure of equipment dispensing, the sealing structure of the present application is more convenient to disassemble, has a stronger self-locking ability, and the first connector 200 and the second connector 300 require less bonding force, and the connection effect is good.

[0061] The interference fit between the annular connecting rib A and the annular tightening groove 110 includes not only the interference fit between the annular connecting rib A and the annular tightening groove 110 in the lateral direction, but also the interference fit in the vertical direction. In addition, while the sealing ring C is inserted into the annular mounting groove B with an interference fit, the lower end of the sealing ring body 100 is connected with the annular mounting groove B with a clearance fit to ensure that the sealing ring C has a certain compression space, thereby improving the assemblability of the sealing ring C, and increasing the contact area between the sealing ring C and the annular mounting groove B and the annular connecting rib A to ensure the extrusion effect, thereby improving the self-locking ability of the sealing ring C.

[0062] In this embodiment, the cross section of the annular connecting rib A is columnar and is formed with a plurality of sealing ring grooves spaced apart from each other; and / or the bottom contour line of the columnar cross section of the annular connecting rib A is an arc line.

[0063] Specifically, such a configuration can increase the contact area between the annular connecting rib A and the annular mounting groove B to ensure the extrusion effect. In addition, the multiple sealing ring grooves arranged at intervals up and down can also abut against the sealing convex ring 130, thereby improving the sealing ability and bonding strength of the sealing structure.

[0064] In some embodiments, the first connecting member 200 and the second connecting member 300 are fastened together by a plurality of locking screws (not shown) arranged at intervals in an annular shape.

[0065] Specifically, the provision of the locking screws can improve the connection strength between the first connector 200 and the second connector 300, and ensure that a certain extrusion effect is formed between the sealing ring C and the first connector 200 and the second connector 300. Since the sealing ring C has a better self-locking force, the number of locking screws can be reduced and the number of locking screws and the locking force requirements can be reduced, thereby reducing assembly costs and improving installation efficiency.

[0066] The present application also protects a vehicle-mounted display, including the above-mentioned sealing structure.

[0067] Specifically, since the aforementioned sealing ring C has excellent anti-slip capability, connection self-locking force and sealing performance, the sealing structure has various advantages such as being able to reduce assembly costs and improve installation efficiency. The vehicle-mounted display of the present application has higher reliability, economy and practicality.

[0068] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0069] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

Claims

1. Sealing ring, characterized in that: The sealing ring (C) comprises: The sealing ring body (100) is annular and has a columnar cross section; An annular tightening groove (110) is formed on the top annular surface of the sealing ring body (100) in a downwardly concave manner; and A sealing convex ring assembly, comprising a plurality of anti-slip convex rings (120) and a plurality of sealing convex rings (130), wherein the outer peripheral wall (140) and the inner peripheral wall (150) of the sealing ring body (100) are respectively provided with the plurality of anti-slip convex rings (120) arranged in an upper and lower interval, and the outer side wall (111) and the inner side wall (112) of the annular tensioning groove (110) are respectively provided with the plurality of sealing convex rings (130) arranged in an upper and lower interval; Wherein, the plurality of anti-dropping protruding rings (120) all extend obliquely upward and away from the direction of the annular tightening groove (110).

2. The sealing ring according to claim 1, characterized in that: A plurality of the anti-dropping convex rings (120) are distributed in a sawtooth shape on the outer peripheral wall (140) or the inner peripheral wall (150) of the main body.

3. The sealing ring according to claim 1, characterized in that: In the cross section of the sealing ring (C), the sealing convex ring (130) is in an arc shape.

4. The sealing ring according to any one of claims 1 to 3, characterized in that: The radial spacing (W) between the anti-dropping convex ring (120) and the corresponding outer peripheral wall (140) of the main body or the inner peripheral wall (150) of the main body is greater than the radial spacing (W) between the sealing convex ring (130) and the corresponding outer side wall (111) of the groove or the inner side wall (112) of the groove.

5. The sealing ring according to claim 4, characterized in that: The top of the annular tightening groove (110) is formed in an upwardly flared shape.

6. The sealing ring according to claim 5, characterized in that: The bottom of the annular tightening groove (110) is formed with an arc bottom surface.

7. A sealing structure, characterized in that: The sealing structure comprises a first connecting member (200) and a second connecting member (300) connected to each other and a sealing ring (C) according to any one of claims 1 to 6; The first connecting member (200) comprises an annular connecting rib (A), the second connecting member (300) comprises an annular mounting groove (B), the sealing ring (C) is inserted into the annular mounting groove (B) with an interference fit, and the annular connecting rib (A) is inserted into the annular tightening groove (110) of the sealing ring (C) with an interference fit.

8. The sealing structure according to claim 7, characterized in that: The cross section of the annular connecting rib (A) is columnar and is formed with a plurality of sealing ring grooves spaced apart from each other; and / or the bottom contour line of the columnar cross section of the annular connecting rib (A) is an arc line.

9. The sealing structure according to claim 8, characterized in that: The first connecting member (200) and the second connecting member (300) are fastened to each other via a plurality of locking screws arranged at intervals in an annular shape.

10. A vehicle-mounted display, characterized in that: The vehicle-mounted display includes the sealing structure according to any one of claims 7 to 9.

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