Dustproof and waterproof sealing structure and operating mechanism

Abstract

The dustproof and waterproof sealing structure comprises a sealing cover, a plane seal and a shaft seal, the sealing cover is installed on a mechanism plate, the plane seal is arranged between the sealing cover and the mechanism plate, a plurality of operation shafts are arranged between the sealing cover and the mechanism plate, the shaft seal is arranged between the operation shafts and the sealing cover, and the sealing cover is installed on the mechanism plate. According to the utility model, the sealing cover is additionally arranged outside the mechanism, the plane seal is arranged between the sealing cover and the mechanism plate and between the mechanism plate and the air box, and the shaft seal is arranged between the operation shaft and the sealing cover, so that the mechanism meets the requirement of the IP65 protection grade, and the influence of condensation and dust on the mechanism is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of electrical technology and relates to a dustproof and waterproof sealing structure and an operating mechanism. Background Art

[0002] The existing ring main unit operating mechanism has no protective shell around the operating mechanism. The current mechanism does not have dust and water protection functions, which will affect the operation and use of the mechanism when the mechanism is in long-term operation. Summary of the invention

[0003] In order to overcome at least one deficiency of the prior art, the utility model provides a dustproof and waterproof sealing structure and an operating mechanism.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a dustproof and waterproof sealing structure, including a sealing cover, a plane seal and a shaft seal, the sealing cover is installed on the mechanism plate, the plane seal is arranged between the sealing cover and the mechanism plate, a plurality of operating shafts are arranged between the sealing cover and the mechanism plate, and the shaft seal is arranged between the operating shaft and the sealing cover.

[0005] Furthermore, the sealing cover includes an outer shell and an outer shell base, the outer shell and the outer shell base are fixedly connected, and the outer shell base is fixedly connected to the mechanism plate.

[0006] Furthermore, the plane seal includes a first sealing gasket and a second sealing gasket, the first sealing gasket is arranged between the shell base and the mechanism plate, the mechanism plate is fixedly connected to the air box, and the second sealing gasket is arranged between the mechanism plate and the air box.

[0007] Furthermore, the shaft seal comprises a sealing sleeve and a skeleton oil seal mechanism, the sealing sleeve is fixedly arranged in the sealing cover, and the skeleton oil seal mechanism is arranged between the sealing sleeve and the outer wall of the shaft.

[0008] Furthermore, the sealing sleeve is provided with an accommodating cavity, the accommodating cavity is located inside the sealing cover, and the skeleton oil sealing mechanism is arranged in the accommodating cavity.

[0009] Furthermore, the skeleton oil seal mechanism includes a skeleton oil seal and a skeleton oil seal gasket, and the skeleton oil seal and the skeleton oil seal gasket are sequentially sleeved on the operating shaft.

[0010] Furthermore, the shaft seal also includes an elastic retaining ring, which is sleeved on the operating shaft to fix the skeleton oil seal mechanism.

[0011] Furthermore, it also includes a sealing sleeve, which is fixed on the sealing cover. A mechanism is provided inside the sealing cover. The mechanism includes a plurality of connecting rods. The connecting rods pass through the sealing cover. The sealing sleeve is arranged between the connecting rods and the sealing cover.

[0012] Furthermore, the first sealing gasket and the second sealing gasket are configured as rectangular ring structures.

[0013] An operating mechanism comprises the above-mentioned sealing structure.

[0014] In summary, the utility model is beneficial in that:

[0015] The utility model adds a sealing cover outside the mechanism, arranges a plane seal between the sealing cover and the mechanism plate and between the mechanism plate and the air box, and arranges a shaft seal between the operating shaft and the sealing cover, so that the mechanism meets the requirements of IP65 protection level and avoids the influence of condensation and dust on the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the sealing structure of the utility model.

[0017] Figure 2 It is a partial cross-sectional view of the sealing cover, plane seal and mechanism plate of the utility model.

[0018] Figure 3 This is a partial cross-sectional view of the sealing cover, shaft seal and operating shaft of the utility model.

[0019] Figure 4 It is a schematic diagram of the sealing sleeve of the utility model.

[0020] Markings in the figure: sealing cover 1, flat seal 2, shaft seal 3, mechanism plate 4, operating shaft 5, sealing sleeve 6, connecting rod 7, housing 11, housing base 12, first sealing gasket 21, second sealing gasket 22, sealing sleeve 31, skeleton oil seal mechanism 32, elastic retaining ring 34, through hole 310, positioning 311, accommodating chamber 312, skeleton oil seal 321, skeleton oil seal gasket 322. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0022] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0023] All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, horizontal, vertical...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0024] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximately parallel relationship, and the vertical relationship may actually be an approximately vertical relationship.

[0025] Embodiment 1:

[0026] like Figure 1-Figure 4 As shown, a dustproof and waterproof sealing structure includes a sealing cover 1, a plane seal 2 and a shaft seal 3. The sealing cover 1 is installed on a mechanism plate 4, the plane seal 2 is arranged between the sealing cover 1 and the mechanism plate 4, a plurality of operating shafts 5 are arranged between the sealing cover 1 and the mechanism plate 4, and the shaft seal 3 is arranged between the operating shaft 5 and the sealing cover 1.

[0027] The sealing cover 1 includes a shell 11 and a shell base 12, the shell 11 and the shell base 12 are fixedly connected, the shell base 12 is fixedly connected to the mechanism plate 4, and a cavity is also provided inside the shell 11, and a mechanism (not shown) is installed in the cavity.

[0028] The sealing cover 1 is configured as a closed cover welded from all metal.

[0029] The plane seal 2 includes a first sealing gasket 21 and a second sealing gasket 22. The first sealing gasket 21 is arranged between the shell base 12 and the mechanism plate 4, and the second sealing gasket 22 is fixedly arranged on the outside of the mechanism plate 4. The mechanism plate 4 is fixedly connected to the air box (not shown in the figure), and the second sealing gasket 22 is arranged between the mechanism plate 4 and the air box.

[0030] Preferably, the first sealing gasket 21 and the second sealing gasket 22 are configured as rectangular ring structures.

[0031] The shaft seal 3 comprises a sealing sleeve 31 and a skeleton oil seal mechanism 32 . The sealing sleeve 31 is fixed to the sealing cover 1 , and the skeleton oil seal mechanism 32 is arranged between the sealing sleeve 31 and the outer wall of the shaft 5 .

[0032] The sealing sleeve 31 is provided with a through hole 310 , and the operating shaft 5 passes through the through hole 310 and extends to the outside of the sealing cover 1 .

[0033] The sealing sleeve 31 is provided with a positioning portion 311 , and the positioning portion 311 abuts against the sealing cover 1 to realize the installation and positioning of the sealing sleeve 31 .

[0034] The sealing sleeve 31 is provided with an accommodating chamber 312 , the accommodating chamber 312 is located inside the sealing cover 1 , the skeleton oil sealing mechanism 32 is arranged in the accommodating chamber 312 , and the accommodating chamber 312 is communicated with the cavity.

[0035] The skeleton oil seal mechanism 32 comprises a skeleton oil seal 321 and a skeleton oil seal gasket 322 , and the skeleton oil seal 321 and the skeleton oil seal gasket 322 are sequentially sleeved on the operating shaft 5 .

[0036] The shaft seal 3 further includes an elastic retaining ring 34 , which is sleeved on the operating shaft 5 to fix the skeleton oil seal mechanism 32 .

[0037] The mechanism comprises an operating shaft 5 , which is rotatably connected to the sealing cover 1 and is sealed via a shaft seal 3 .

[0038] The sealing structure further includes a sealing sleeve 6 , and the mechanism includes a plurality of connecting rods 7 . The connecting rods 7 pass through the sealing cover 1 . The sealing sleeve 6 is fixed to the sealing cover 1 and is arranged between the connecting rods 7 and the sealing cover 1 .

[0039] In this embodiment, the mechanism can be set as one of a circuit breaker operating mechanism, an isolating operating mechanism, and a load switch operating mechanism.

[0040] In this embodiment, the fixed connection between the housing 11 and the housing base 12, the fixed connection between the sealing sleeve and the sealing cover 1, and the fixed connection between the sealing sleeve 6 and the sealing cover 1 can be achieved by sealing connection methods such as welding and gluing.

[0041] The present application also provides an operating mechanism, including the above-mentioned dustproof and waterproof sealing structure.

[0042] The sealing structure in this embodiment can be used alone in existing equipment, and the structures not described in the mechanism use existing components and will not be described in detail here.

[0043] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A dustproof and waterproof sealing structure, characterized in that: It includes a sealing cover, a plane seal and a shaft seal. The sealing cover is installed on the mechanism plate. The plane seal is arranged between the sealing cover and the mechanism plate. Several operating shafts are arranged between the sealing cover and the mechanism plate. The shaft seal is arranged between the operating shaft and the sealing cover.

2. A dustproof and waterproof sealing structure according to claim 1, characterized in that: The sealing cover comprises an outer shell and an outer shell base, the outer shell and the outer shell base are fixedly connected, and the outer shell base is fixedly connected to the mechanism plate.

3. A dustproof and waterproof sealing structure according to claim 2, characterized in that: The plane seal includes a first sealing gasket and a second sealing gasket. The first sealing gasket is arranged between the shell base and the mechanism plate. The mechanism plate is fixedly connected to the air box. The second sealing gasket is arranged between the mechanism plate and the air box.

4. A dustproof and waterproof sealing structure according to claim 1, characterized in that: The shaft seal comprises a sealing sleeve and a skeleton oil seal mechanism. The sealing sleeve is fixed on the sealing cover, and the skeleton oil seal mechanism is arranged between the sealing sleeve and the outer wall of the shaft.

5. A dustproof and waterproof sealing structure according to claim 4, characterized in that: The sealing sleeve is provided with a containing cavity, the containing cavity is located inside the sealing cover, and the skeleton oil sealing mechanism is arranged in the containing cavity.

6. A dustproof and waterproof sealing structure according to claim 4, characterized in that: The skeleton oil seal mechanism comprises a skeleton oil seal and a skeleton oil seal gasket, and the skeleton oil seal and the skeleton oil seal gasket are sequentially sleeved on the operating shaft.

7. A dustproof and waterproof sealing structure according to claim 4, characterized in that: The shaft seal also includes an elastic retaining ring, which is sleeved on the operating shaft to fix the skeleton oil seal mechanism.

8. The dustproof and waterproof sealing structure according to claim 1, characterized in that: It also includes a sealing sleeve, which is fixed on the sealing cover. A mechanism is arranged inside the sealing cover. The mechanism includes a plurality of connecting rods. The connecting rods pass through the sealing cover. The sealing sleeve is arranged between the connecting rods and the sealing cover.

9. The dustproof and waterproof sealing structure according to claim 3, characterized in that: The first sealing gasket and the second sealing gasket are configured as rectangular ring structures.

10. An operating mechanism, characterized in that: The sealing structure comprises the sealing structure described in any one of claims 1 to 9.

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