CN218101055U

CN218101055U - Protective casing of universal change-over switch

Info

Publication number: CN218101055U
Application number: CN202221764952.7U
Authority: CN
Inventors: 井晓任; 付亮; 谢海建
Original assignee: Zhejiang Chint Machine Tool & Electric Manufacturing Co ltd; Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Machine Tool & Electric Manufacturing Co ltd; Zhejiang Chint Electrics Co Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-12-20
Anticipated expiration: 2032-07-08

Abstract

The utility model provides a omnipotent change over switch's protective housing, includes the base, the base lid has closed the upper cover, forms sealed holding chamber between upper cover and base, and the holding chamber is used for assembling omnipotent change over switch's body, and the handle of connection on the body is sealed to pass the upper cover, the base is equipped with two through holes, and two through holes are located two relative lateral walls of base respectively, is equipped with a waterproof sleeve in every through hole, and waterproof sleeve stretches into the holding intracavity and is used for corresponding with the inlet wire end or the leading-out terminal of body, and furthest reduces foreign matter such as sand and dust and gets into, has guaranteed that omnipotent change over switch's operational environment does not receive external disturbance.

Description

Protective casing of universal change-over switch

Technical Field

The utility model relates to a low-voltage apparatus field, concretely relates to omnipotent change over switch's protective housing.

Background

The universal change-over switch is a switch widely applied to an electric control system, mainly comprises a contact system, an operating mechanism, a positioning mechanism, a handle and the like, and has the working principle that: when the handle rotates, the cam connected with the rotating shaft is driven to rotate, the movable contact connected with the support is driven by the cam to do linear motion, and the connection and disconnection of the contact are realized. The universal change-over switch has high requirements on working environment due to the characteristics of a mechanism of the universal change-over switch, when the conventional universal change-over switch is used in an environment with large sand and dust, foreign matters such as sand and dust can easily enter the interior of the switch, and a cam driving support can be blocked when moving, so that the on-off is abnormal, and a control circuit system is failed.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a universal change over switch's protective housing that simple structure, protection nature are high.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a omnipotent change over switch's protective housing, includes the base, the base lid has closed the upper cover, forms sealed holding chamber between upper cover and base, and the holding chamber is used for assembling omnipotent change over switch's body, and the handle of connection on the body is sealed to pass the upper cover, the base is equipped with two through holes, and two through holes are located two relative lateral walls of base respectively, is equipped with a waterproof sleeve in every through hole, and waterproof sleeve stretches into the holding intracavity and is used for corresponding with the inlet wire end or the leading-out terminal of body.

Preferably, one side of the upper cover facing the base is provided with an annular groove, and a sealing ring is assembled in the annular groove, so that the edge of the side wall of the base is inserted in the annular groove in a sealing manner.

Preferably, one side that the upper cover is back to the base is equipped with the mounting groove, and the mounting panel that is equipped with omnipotent change over switch is fixed in the mounting groove sealed between mounting panel and the mounting groove tank bottom is equipped with sealing gasket, corresponds at the tank bottom of mounting groove, sealing gasket and the middle part of mounting panel and is equipped with the through-hole, and the through-hole that mounting panel, sealing gasket and mounting groove were passed in proper order to the pivot of handle stretches into the holding intracavity.

Preferably, the groove depth of the mounting groove is smaller than the normal thickness of the sealing gasket, and the sealing gasket is pressed by the mutual matching of the mounting plate and the upper cover, so that the sealing gasket and the mounting groove form interference fit.

Preferably, one end of each waterproof sleeve penetrates through the through hole, one end, stretching into the accommodating cavity, of each waterproof sleeve is connected with a limiting nut, the outer diameter of each limiting nut is larger than that of the corresponding through hole, and the two through holes are opposite in dislocation.

Preferably, at least one side of each through hole is convexly provided with a second limiting part, and the second limiting part is abutted against the limiting nut.

Preferably, a limiting structure is arranged in the accommodating cavity and comprises at least one first limiting part and at least one second limiting part, the first limiting part is correspondingly arranged in the middle of the accommodating cavity, and the second limiting part is correspondingly arranged on the side wall of the accommodating cavity.

Preferably, first recess has been seted up to one side of upper cover, the second recess has been seted up to one side of base, form the holding chamber by first recess and the butt joint of second recess, the edge of first recess and second recess is the protrusion respectively and is equipped with first arc portion and second arc portion, be equipped with first screw hole and second screw hole respectively in first arc portion and second arc portion, when upper cover and base lid, first arc portion and the butt joint of second arc portion form the spacing portion of second to at first screw hole and the downthehole self-tapping screw that is equipped with of second screw.

Preferably, the upper cover is provided with an indication mark for indicating the assembling direction, and the indication mark is arranged on one side of the upper cover facing the base and/or one side of the upper cover back to the base.

Preferably, the outer side wall of the base is provided with a pair of hanging lugs, and each hanging lug and one through hole are positioned on the same side wall of the base.

The utility model discloses a omnipotent change over switch's protective housing, base and upper cover are covered each other and are closed the holding chamber that forms sealedly, and omnipotent change over switch's handle is sealed to be passed the upper cover, and omnipotent change over switch's inlet wire and being qualified for the next round of competitions pass waterproof sleeve respectively and wear out the holding chamber, and foreign matter such as furthest reduction sand and dust gets into, has guaranteed that omnipotent change over switch's operational environment does not receive external disturbance.

In addition, set up the sealing washer between upper cover and the base, be equipped with the mounting groove of mounting panel in set up sealing gasket, especially sealing gasket forms interference fit with the mounting groove under the cooperation of upper cover and mounting panel, sealing washer and sealing gasket do benefit to the leakproofness of guaranteeing the holding chamber.

In addition, the waterproof sleeve is limited in the through hole by the limiting nut, and the two through holes are staggered and opposite, so that the assembly is convenient, and the mutual interference in the assembly process is avoided.

In addition, the upper cover is provided with an indication mark, so that the uniqueness of the assembly direction of the universal change-over switch is ensured.

Drawings

Fig. 1 is an exploded view of the universal transfer switch of the present invention after assembly;

FIG. 2 is a schematic cross-sectional view of the present invention after assembly of the universal transfer switch;

fig. 3 is a top view of the present invention after the universal transfer switch is assembled;

fig. 4 is a schematic structural view of the side of the upper cover opposite to the base (provided with four mounting holes);

FIG. 5 is a schematic view of the structure of the side of the upper cover facing the base (four mounting holes are provided);

FIG. 6 is a schematic structural view of the upper cover facing away from the base (two mounting holes are provided);

FIG. 7 is a schematic structural view of the side of the upper cover facing the base (two mounting holes are provided);

fig. 8 is a schematic structural view of the middle seal gasket of the present invention;

fig. 9 is a schematic structural diagram of the middle seal ring of the present invention;

FIG. 10 is a schematic view of the structure of the waterproof sleeve and the base of the present invention;

fig. 11 is a schematic structural view of the base of the present invention;

fig. 12 is a schematic structural view of the waterproof sleeve of the present invention.

Detailed Description

The following description will further describe the embodiments of the protective housing of the universal transfer switch according to the present invention with reference to the embodiments shown in fig. 1 to 12. The protection housing of the universal changeover switch of the present invention is not limited to the description of the following embodiments.

The utility model provides a universal change-over switch's protective housing, includes

base

2, 2 lids of base have closed upper cover 1, form sealed holding chamber a between upper cover 1 and base 2, and holding chamber a is used for assembling universal change-over switch 6's body, and handle 61 of connection on the body is sealed to pass upper cover 1, base 2 is equipped with two through holes 21, and two through holes 21 are located two relative lateral walls of base 2 respectively, is equipped with a waterproof sleeve 3 in every through hole 21, and waterproof sleeve 3 stretches into and is used for corresponding with the inlet wire end or the leading-out terminal of body in the holding chamber a.

The utility model discloses a universal conversion switch's protective housing, base 2 and upper cover 1 cover each other and close and form sealed holding chamber an, and universal conversion switch 6's handle 61 is sealed to be passed upper cover 1, and universal conversion switch 6's inlet wire and be qualified for the next round of competitions pass waterproof sleeve respectively and wear out holding chamber an, and foreign matter such as furthest reduces sand and dust gets into, has guaranteed that universal conversion switch 6's operational environment does not receive external disturbance.

A specific embodiment is provided with reference to fig. 1-12, the protective housing of the universal change-over switch includes a base 2 and an upper cover 1 covering the base 2, a sealed accommodating cavity a is formed between the upper cover 1 and the base 2, a body of the universal change-over switch 6 is assembled in the accommodating cavity a in a limited manner, a handle 61 connected to the body can pass through the upper cover 1 in a sealed manner and extend out of the accommodating cavity a for operating the body, the base 2 is provided with two through holes 21, the two through holes 21 are respectively located on two opposite side walls of the base 2, each through hole 21 is assembled with a waterproof sleeve 3, the waterproof sleeve 3 extends into the accommodating cavity a and corresponds to an inlet end or an outlet end of the body, so that the inlet and outlet of the body respectively pass through the two waterproof sleeves 3 and extend out of the accommodating cavity a, preferably, each waterproof sleeve 3 extends into the accommodating cavity a through hole 21, one end of the waterproof sleeve 3 extending into the accommodating cavity a is provided with a limit nut 31, the outer diameter of the limit nut 31 is larger than the outer diameter of the body, the waterproof sleeve 3 is limited in the waterproof sleeve 21, and the two through holes 21 are assembled in a staggered manner, so that the two through holes 21 do not interfere with each other.

In this embodiment, the joint between the upper cover 1 and the base 2 is sealed by the packing 41, and the area of the handle 61 passing through the upper cover 1 is sealed by the sealing gasket 42.

Specifically, an annular groove 18 is arranged on one side of the upper cover 1 facing the base 2, the edge of the side wall of the base 2 can be inserted into the annular groove 18, and a sealing ring 41 is arranged in the annular groove 18 to ensure the air tightness of the joint; be equipped with mounting groove 11 on the one side of upper cover 1 back to base 2, mounting panel 62 that universal transfer switch 6 was equipped with is fixed in mounting groove 11, sealing gasket 42 assembles between mounting panel 62 and the mounting groove 11 tank bottom, preferably, the groove depth of mounting groove 11 is less than the thickness of sealing gasket 42 normal state, mutually support extrusion sealing gasket 42 by mounting panel 62 and upper cover 1, make sealing gasket 42 and mounting groove 11 form interference fit, at the tank bottom of mounting groove 11, the middle part correspondence of sealing gasket 42 and mounting panel 62 is equipped with through-hole 15, handle 61 rotates to be connected in the one side of mounting panel 62 back to upper cover 1, the pivot of handle 61 passes mounting panel 62 in proper order, through-hole 15 of sealing gasket 42 and mounting groove 11 stretches into in the holding chamber an and body coupling.

Preferably, the mounting plate 62 and the sealing gasket 42 are fixed to the upper cover 1 by fastening screws, the mounting holes 17 are correspondingly formed in the bottoms of the mounting plate 62, the sealing gasket 42 and the mounting groove 11, the fastening screws are correspondingly assembled in the mounting holes 17, and the mounting plate 62, the sealing gasket 42 and the mounting groove 11 are fixed together by the fastening screws, so that the mounting stability is ensured, and the interference fit between the sealing gasket 42 and the mounting groove 11 is facilitated. Of course, the mounting plate 62 and the sealing gasket 42 can be assembled in the mounting groove 11 by other methods, such as clamping or bonding in the mounting groove 11.

Furthermore, a limiting structure is arranged in the accommodating cavity a, the body of the universal change-over switch 6 is limited by the limiting structure, the limiting structure comprises at least one first limiting part 13 and at least one second limiting part, preferably, the first limiting part 13 is correspondingly arranged in the middle of the accommodating cavity a, the second limiting part is correspondingly arranged on the side wall of the accommodating cavity a, so that the body is limited from multiple angles, wherein the second limiting part is convexly arranged on one side of each through hole 21, the second limiting part is matched with the side of the body in a limiting manner, and meanwhile, when the waterproof sleeve 3 is assembled, the second limiting part can be matched with the limiting waterproof sleeve 3.

In addition, the upper cover 1 is provided with an indication mark 16 for indicating the assembling direction so as to ensure the uniqueness of the assembling direction, wherein the indication mark 16 can be separately arranged on one side of the upper cover 1 facing the base 2, or separately arranged on one side of the upper cover 1 opposite to the base 2, or both the side of the upper cover 1 facing the base 2 and the side opposite to the base 2 are provided with the indication marks 16; a pair of hanging lugs 24 are arranged on the outer side wall of the base 2, the protective shell can be assembled on the switch 6 cabinet through the hanging lugs 24, and preferably, each hanging lug 24 and one through hole 21 are positioned on the same side wall of the base 2.

Providing a specific structure of the upper cover 1 in this embodiment with reference to fig. 1-7, where the upper cover 1 is rectangular as a whole, a square installation groove 11 is formed in the middle of one side of the upper cover 1, a rectangular sealing gasket 42 and an installation plate 62 are sequentially stacked and assembled in the installation groove 11, where the depth of the installation groove 11 is smaller than the thickness of the sealing gasket 42 in a normal state, a through hole 15 is formed in the middle of the bottom of the installation plate 62, the sealing gasket 42 and the installation groove 11, and a rotation shaft of a handle 61 passes through the through hole 15 and extends into the accommodation cavity a to be connected with the body, and in the drawings, the installation plate 62, the sealing gasket 42 and the installation groove 11 are fixedly assembled by fastening screws, as shown in fig. 4 and 5, an installation hole 17 is formed at each of four corners corresponding to the installation groove 11, and correspondingly, installation holes 17 are formed at each of the four corners of the square sealing gasket 42 (see fig. 8) and the installation plate 62, or, as shown in fig. 6 and 7, an installation hole 17 is formed at each of two sides of the through hole 15 of the installation groove 11, and a corresponding installation hole 17, or a universal switch is formed at the installation hole 17 and at the installation hole 17 as needed; a first groove 12 is formed in the other side of the upper cover 1, that is, a first groove 12 is formed in one side back to the mounting groove 11, in fig. 5 and 7, the first groove 12 is a rectangular groove, an annular groove 18 is formed around the outer side of the first groove 12, a rectangular sealing ring 41 (see fig. 9) is assembled in the annular groove 18, four strip-shaped convex ribs are convexly arranged in the middle of the first groove 12, each convex rib serves as a first limiting portion 13, a square area corresponding to the mounting groove 11 is formed in the middle of the bottom of the first groove 12 by surrounding the four first limiting portions 13 by the four first limiting portions 13, a through hole 15 and a mounting hole 17 are correspondingly positioned in the square area surrounded by the four first limiting portions 13, so that a body of the universal transfer switch 6 can be limited in the four first limiting portions 13, first arc portions 14 are convexly arranged at the four corners of the first groove 12, and a first screw hole 141 is formed in each first arc portion 14. In addition, as shown in fig. 4-7, indication marks 16 are respectively arranged on two sides of the upper cover 1 provided with the mounting groove 11 and the first groove 12 to ensure the uniqueness of the assembly direction of the universal switch 6, wherein the indication marks 16 are arrows.

As shown in fig. 10-12, the base 2 is a rectangle matched with the upper cover 1, a second groove 22 is formed in one side of the base 2, an accommodating cavity a is formed by butting the first groove 12 and the second groove 22, second arc-shaped portions 23 are respectively convexly arranged at four corners of the second groove 22, second screw holes 231 are arranged on the second arc-shaped portions 23, when the upper cover 1 is covered with the base 2, the edge of the side wall of the base 2 is inserted into the annular groove 18, the first arc-shaped portions 14 are butted with the second arc-shaped portions 23 to form second limiting portions, and tapping screws 5 (see fig. 2) are assembled in the first screw holes 141 and the second screw holes 231 to fixedly connect the upper cover 1 and the base 2 together; in the present embodiment, one end of each waterproof sleeve 3 correspondingly passes through one through hole 21, an external thread is disposed at one end of the waterproof sleeve 3 extending into the accommodating cavity a, one end of each waterproof sleeve 3 provided with the external thread is further connected with a limit nut 31, the external diameter of the limit nut 31 is larger than the external diameter of the through hole 21, so that the waterproof sleeve 3 cannot fall off from the through hole 21, in addition, the through hole 21 is disposed in a staggered manner to prevent the two waterproof sleeves 3 from interfering with each other during assembly, and in addition, as shown in fig. 10-12, the second limit part adjacent to the through hole 21 can be abutted against one side of the limit nut 31; the outer side wall of the base 2 is provided with a pair of hanging lugs 24, and each hanging lug 24 and one through hole 21 are respectively positioned on two sides of the same side wall.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings or the directions or positional relationships that are usually placed when used, and are only for convenience of description, but do not indicate that the device or element to be referred to must have a specific direction, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish one description from another, and are not to be construed as indicating relative importance.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model discloses to the ordinary skilled person in technical field's the prerequisite that does not deviate from the utility model discloses under the design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. The utility model provides a omnipotent change over switch's protective housing, includes base (2), base (2) lid has closed upper cover (1), its characterized in that: form sealed holding chamber (a) between upper cover (1) and base (2), holding chamber (a) is used for assembling the body of omnipotent change over switch (6), and handle (61) of connecting on the body passes upper cover (1) sealedly, base (2) are equipped with two through holes (21), and two through holes (21) are located base (2) two relative lateral walls respectively, are equipped with one waterproof sleeve (3) in every through hole (21), and waterproof sleeve (3) stretch into holding chamber (a) and are used for corresponding with the inlet wire end or the outlet terminal of body.

2. The protective casing of a universal transfer switch according to claim 1, characterized in that: an annular groove (18) is formed in one side, facing the base (2), of the upper cover (1), and a sealing ring (41) is assembled in the annular groove (18) to enable the edge of the side wall of the base (2) to be in sealed insertion connection with the annular groove (18).

3. The protective casing of a universal transfer switch according to claim 1, characterized in that: one side of upper cover (1) back to base (2) is equipped with mounting groove (11), is equipped with mounting panel (62) of omnipotent change over switch (6) at mounting groove (11) internal fixation sealing gasket (42) of being equipped with between mounting panel (62) and mounting groove (11) tank bottom, correspond at the tank bottom of mounting groove (11), the middle part of sealing gasket (42) and mounting panel (62) and be equipped with through-hole (15), and through-hole (15) that mounting panel (62), sealing gasket (42) and mounting groove (11) were passed in proper order in the pivot of handle (61) stretch into in holding chamber (a).

4. A protective casing for a universal transfer switch according to claim 3, wherein: the depth of the mounting groove (11) is smaller than the thickness of the sealing gasket (42) in a normal state, and the sealing gasket (42) is pressed by the mutual matching of the mounting plate (62) and the upper cover (1), so that the sealing gasket (42) and the mounting groove (11) form interference fit.

5. The protective casing of a universal transfer switch according to claim 1, characterized in that: one end of each waterproof sleeve (3) penetrates through the through hole (21), one end of each waterproof sleeve (3) extending into the accommodating cavity (a) is connected with a limiting nut (31), the outer diameter of each limiting nut (31) is larger than that of each through hole (21), and the two through holes (21) are staggered and opposite.

6. The protective casing of the universal transfer switch according to claim 5, wherein: at least one side of each through hole (21) is convexly provided with a second limiting part which is abutted against the limiting nut (31).

7. The protective casing of the universal transfer switch according to claim 1 or 6, wherein: the accommodating cavity (a) is internally provided with a limiting structure, the limiting structure comprises at least one first limiting part (13) and at least one second limiting part, the first limiting part (13) is correspondingly arranged in the middle of the accommodating cavity (a), and the second limiting part is correspondingly arranged on the side wall of the accommodating cavity (a).

8. The protective casing of a universal transfer switch according to claim 7, wherein: first recess (12) have been seted up to one side of upper cover (1), second recess (22) have been seted up to one side of base (2), form holding chamber (a) by first recess (12) and second recess (22) butt joint, the corner department at first recess (12) and second recess (22) is the protrusion respectively and is equipped with first arc portion (14) and second arc portion (23), be equipped with first screw hole (141) and second screw hole (231) respectively in first arc portion (14) and second arc portion (23), when upper cover (1) and base (2) lid, first arc portion (14) and second arc portion (23) butt joint form the spacing portion of second, and be equipped with self-tapping screw (5) in first screw hole (141) and second screw hole (231).

9. The protective casing of a universal transfer switch according to claim 1, characterized in that: the upper cover (1) is provided with an indicating mark (16) for indicating the assembling direction, and the indicating mark (16) is arranged on one side of the upper cover (1) facing the base (2) and/or one side of the upper cover (1) back to the base (2).

10. A protective casing for a universal changeover switch according to claim 1 or 5, characterized in that: the outer side wall of the base (2) is provided with a pair of hanging lugs (24), and each hanging lug (24) and one through hole (21) are positioned on the same side wall of the base (2).