Sealing structure, handle assembly and isolating switch

Abstract

The utility model relates to the technical field of disconnecting switches, in particular to a sealing structure, a handle assembly and a disconnecting switch. The sealing structure comprises a main body, a groove for containing a sealing ring is formed in the main body, a first side wall in the groove is provided with a plurality of extrusion parts protruding towards a second side wall, the multiple extrusion parts are arranged at intervals, the second side wall is provided with a plurality of fixing parts extending towards the first side wall, the fixing parts and the extrusion parts are arranged in a staggered mode, and the first side wall and the second side wall are arranged in a staggered mode. The inner ring face of the sealing ring abuts against the extrusion part, and the outer ring face of the sealing ring abuts against the fixing part. The extrusion portion and the fixing portion are arranged on the first side wall and the second side wall respectively, the inner ring face of the sealing ring abuts against the extrusion portion, the outer ring face of the sealing ring abuts against the fixing portion, and therefore the sealing ring is limited in the groove, and the situation that the sealing ring is displaced or disengaged when collided by external force can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of isolating switches, in particular to a sealing structure, a handle assembly and an isolating switch. Background Art

[0002] The isolating switch is a switch device mainly used to isolate power and disconnect circuits. In actual applications, the isolating switch is usually installed in a cabinet, and the handle assembly passes through the side wall of the cabinet and is linked to the isolating switch, so that the handle assembly can be operated from the outside to drive the isolating switch to open and close. Therefore, the sealed connection between the handle assembly and the cabinet is particularly important.

[0003] In the prior art, a sealing ring is usually provided between the handle assembly and the cabinet. However, during transportation or under the influence of external force collision, the sealing ring may be separated from or displaced between the handle assembly and the cabinet, thereby affecting the sealing effect. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to provide a kind of defect.

[0005] In order to solve the above problems, the utility model provides a sealing structure, including:

[0006] The main body has a groove for placing a sealing ring, the first side wall in the groove has a plurality of extrusion parts protruding toward the second side wall, the plurality of extrusion parts are arranged at intervals, the second side wall has a plurality of fixing parts extending toward the first side wall, the fixing parts and the extrusion parts are arranged alternately, the inner ring surface of the sealing ring abuts against the extrusion parts, and the outer ring surface of the sealing ring abuts against the fixing parts.

[0007] Further, the diameter of the first side wall is larger than that of the second side wall, or the diameter of the second side wall is larger than that of the first side wall.

[0008] Furthermore, an arc-shaped concave surface is constructed between adjacent extrusion parts, and the inner ring surface of the sealing ring is in contact with the arc-shaped concave surface and the extrusion part.

[0009] Furthermore, the extrusion portion includes at least a partial spherical surface, at least a partial ellipsoidal surface, a cylindrical surface, or a rectangular surface.

[0010] Furthermore, the fixing portion includes at least a partial spherical surface, at least a partial ellipsoidal surface, a cylindrical surface, or a rectangular surface.

[0011] The utility model also provides a handle assembly, comprising: the sealing structure and handle described in any of the above schemes, wherein the handle is provided with a shaft sleeve, the main body is provided with a through hole, the groove is concentric with the through hole, and the shaft sleeve passes through the through hole so that the handle is arranged on the main body.

[0012] Furthermore, a mounting hole for installation is provided on the main body.

[0013] The utility model also provides an isolating switch, comprising: the handle assembly described in the above scheme.

[0014] The utility model has the following advantages:

[0015] The utility model discloses a sealing structure, wherein an extrusion portion and a fixing portion are respectively arranged on a first side wall and a second side wall, so that an inner ring surface of a sealing ring abuts against the extrusion portion, and an outer ring surface of the sealing ring abuts against the fixing portion, thereby limiting the sealing ring in a groove, and effectively preventing the sealing ring from being displaced or separated when impacted by an external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the sealing structure in the first embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of a handle assembly in Embodiment 2 of the present utility model;

[0019] Description of reference numerals:

[0020] 1. Main body; 2. Groove; 3. First side wall; 4. Second side wall; 5. Extrusion part; 6. Fixing part; 7. Arc-shaped concave surface; 8. Handle; 9. Bushing; 10. Mounting hole. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] Embodiment 1

[0026] like Figure 1 As shown, this embodiment discloses a sealing structure, including: a main body 1. The main body 1 has a groove 2 for placing a sealing ring, a first side wall 3 in the groove 2 has a plurality of extrusion parts 5 protruding toward a second side wall 4, and the plurality of extrusion parts 5 are arranged at intervals, the second side wall 4 has a plurality of fixing parts 6 extending toward the first side wall 3, the fixing parts 6 and the extrusion parts 5 are arranged alternately, the inner ring surface of the sealing ring abuts against the extrusion part 5, and the outer ring surface of the sealing ring abuts against the fixing part 6.

[0027] Specifically, the main body 1 has a groove 2 for placing the sealing ring, and the groove 2 is an annular groove, which has a first side wall 3 and a second side wall 4. In the present embodiment, the diameter of the first side wall 3 is smaller than the diameter of the second side wall 4, and the first side wall 3 is provided with a plurality of extrusion portions 5 protruding toward the second side wall 4, and a gap for placing the sealing ring is provided between the extrusion portion 5 and the second side wall 4, and the plurality of extrusion portions 5 are arranged at intervals, and the second side wall 4 has a plurality of fixing portions 6 extending toward the first side wall 3, and the fixing portions 6 and the extrusion portions 5 are arranged alternately, and a gap for placing the sealing ring is provided between the fixing portions 6 and the second side wall 4. After the sealing ring is placed in the groove 2, the fixing portions 6 and the extrusion portions 5 respectively extrude the outer ring surface and the inner ring surface of the sealing ring, and the fixing portion 6 can make the inner ring surface of the sealing ring fit with the surface of the extrusion portion 5 and the first side wall 3, and the fixing portions 6 and the extrusion portions 5 cooperate with each other to limit the sealing ring in the groove 2. In other embodiments, the diameter of the first side wall 3 may be greater than the diameter of the second side wall 4 , and the fixing portion 6 squeezes the inner ring surface of the sealing ring so that the outer ring surface of the sealing ring fits with the surface of the squeezing portion 5 and the first side wall 3 .

[0028] Further, the extrusion portion 5 includes at least a partial spherical surface, at least a partial ellipsoidal surface, a cylindrical surface, or a rectangular surface.

[0029] Preferably, Figure 1 As shown, in the present embodiment, the first side wall 3 has four extrusion portions 5, the four extrusion portions 5 are evenly spaced, and the contour of the extrusion portion 5 is a partial spherical surface. In other optional embodiments, the contour of the extrusion portion 5 may also be at least a partial ellipsoidal surface, a cylindrical surface, or a rectangular surface.

[0030] Further, the fixing portion 6 includes at least a partial spherical surface, at least a partial ellipsoidal surface, a cylindrical surface, or a rectangular surface.

[0031] Preferably, Figure 1 As shown, in the present embodiment, the second side wall 4 has four fixing portions 6, and the contour of the fixing portion 6 is a rectangular surface. In other optional embodiments, the contour of the extrusion portion 5 may also be one of at least a partial spherical surface, at least a partial ellipsoidal surface, and a cylindrical surface.

[0032] Further, such as Figure 1 As shown, an arcuate concave surface 7 is formed between adjacent extrusion parts 5, and the inner ring surface of the sealing ring fits with the arcuate concave surface 7 and the extrusion part 5. The fixing part 6 corresponds to the arcuate concave surface 7, and there is a gap between the fixing part 6 and the arcuate concave surface 7 for placing the sealing ring. The fixing part 6 squeezes the sealing ring so that the inner ring surface of the sealing ring fits with the arcuate concave surface 7.

[0033] Embodiment 2

[0034] like Figure 2As shown, this embodiment provides a handle assembly, including: a sealing structure and a handle 8. The sealing structure is the sealing structure described in the first embodiment, a sleeve 9 is provided on the handle 8, a through hole is provided on the main body 1, the groove 2 is concentric with the through hole, the sleeve 9 passes through the through hole so that the handle 8 is arranged on the main body 1. The handle 8 is rotatably arranged on the main body 1.

[0035] Furthermore, the main body 1 is provided with a mounting hole 10 for installation. The main body 1 is installed on the isolating switch cabinet through the mounting hole 10, and the shaft sleeve 9 is connected to the rotating shaft of the power switch in the isolating switch cabinet, so that the power can be turned on and off by rotating the handle 8.

[0036] Embodiment 3

[0037] This embodiment provides an isolating switch, including: a handle assembly, and the handle assembly is the handle assembly described in the second embodiment.

[0038] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A sealing structure, characterized in that: include: The main body (1) has a groove (2) for placing a sealing ring, the first side wall (3) in the groove (2) has a plurality of extrusion parts (5) protruding toward the second side wall (4), the plurality of extrusion parts (5) are arranged at intervals, the second side wall (4) has a plurality of fixing parts (6) extending toward the first side wall (3), the fixing parts (6) and the extrusion parts (5) are arranged alternately, the inner ring surface of the sealing ring abuts against the extrusion part (5), and the outer ring surface of the sealing ring abuts against the fixing part (6).

2. The sealing structure according to claim 1, characterized in that: The diameter of the first side wall (3) is greater than that of the second side wall (4), or the diameter of the second side wall (4) is greater than that of the first side wall (3).

3. The sealing structure according to claim 2, characterized in that: An arc-shaped concave surface (7) is formed between adjacent extrusion portions (5), and the inner ring surface of the sealing ring is in contact with the arc-shaped concave surface (7) and the extrusion portion (5).

4. The sealing structure according to claim 1, characterized in that: The extrusion portion (5) comprises at least a partial spherical surface, at least a partial ellipsoidal surface, a cylindrical surface, or a rectangular surface.

5. The sealing structure according to claim 1, characterized in that: The fixing portion (6) comprises at least a partial spherical surface, at least a partial ellipsoidal surface, a cylindrical surface, or a rectangular surface.

6. A handle assembly, characterized in that: include: The sealing structure and handle (8) described in any one of claims 1 to 5, wherein a sleeve (9) is provided on the handle (8), a through hole is provided on the main body (1), the groove (2) is concentric with the through hole, and the sleeve (9) passes through the through hole so that the handle (8) is arranged on the main body (1).

7. The handle assembly according to claim 6, characterized in that: The main body (1) is provided with a mounting hole (10) for mounting.

8. An isolating switch, characterized in that: include: The handle assembly according to claim 6 or 7.

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