CN217881227U

CN217881227U - Outdoor waterproof limit switch

Info

Publication number: CN217881227U
Application number: CN202220972598.0U
Authority: CN
Inventors: 楼玉芳
Original assignee: Zhejiang Jianhuan Electric Co ltd
Current assignee: Zhejiang Jianhuan Electric Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-11-22
Anticipated expiration: 2032-04-25

Abstract

The utility model relates to the field of switches, in particular to an outdoor waterproof limit switch, which comprises a shell and a cover body, wherein a shaft hole is formed in the shell, a switch main shaft is rotationally connected in the shaft hole, a handle rod for pulling the switch main shaft is connected on the switch main shaft, a connecting device for detachably connecting the shell and the cover body is arranged on the shell or/and the cover body, a sealing groove matched with the opening edge of the shell is arranged on the opening edge of the cover body, a sealing sheet and a pressing plate for sealing the shaft hole are sleeved on the switch main shaft, the sealing sheet and the pressing plate are both positioned in the shell, the pressing plate is detachably connected with the shell and presses the sealing sheet on the inner wall of the shell, and the position of the shaft hole is separated from the opening edge of the shell; the utility model provides a switch expose the problem of intaking easily in the open air.

Description

Outdoor waterproof limit switch

Technical Field

The utility model belongs to the technical field of the switch and specifically relates to an outdoor waterproof limit switch is related to.

Background

A switch is an electronic component that can open a circuit, interrupt current, or allow current to flow to other circuits; the principle of the switch is that the "closing" of a contact means that the electronic contact is conductive, allowing current to flow; by "open" is meant that the electrical contacts are not conductive and open, not allowing current to flow. The simplest switch has two pieces of metal called "contacts", which make the current form a loop when they are in contact and open when they are not in contact.

At present, for large machinery working outdoors, such as a crane, an excavator, and a ground crusher, a large switch is usually required to control the on/off of the switch, and the existing box-type switch loaded on the large machinery usually includes a shaft hole for the main shaft of the switch to pass through on the cover or/and the housing, and the shaft hole usually coincides with the opening edge of the housing, so that external moisture is easy to enter the cover and the housing.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an outdoor waterproof limit switch has solved the switch and is exposing the problem of intaking easily in the open air.

The utility model adopts the technical proposal that: the utility model provides an outdoor waterproof limit switch, includes casing and lid, the shaft hole has been seted up on the casing, the shaft hole internal rotation is connected with the switch main shaft, be connected with on the switch main shaft and be used for pulling the handle bar of switch main shaft, casing or/and be provided with on the lid and be used for dismantling the connection the casing with the connecting device of lid, be provided with on the lid opening border with the seal groove of casing opening border adaptation, the cover is equipped with on the switch main shaft and is used for sealing gasket and the clamp plate in shaft hole, the gasket with the clamp plate all is located inside the casing, the clamp plate with the casing can be dismantled to be connected and will the gasket extrusion is on the shells inner wall, the shaft hole position with casing opening border separation.

Through foretell technical scheme, the shaft hole utilizes the gasket that the clamp plate compressed tightly to seal the processing, utilizes casing border equal butt everywhere to realize sealed processing in the seal groove between casing and the lid, and shaft hole and casing opening border separately seal the processing for this device's the sealed degree of difficulty is littleer, sealed effect is better, has avoided external moisture to get into erosion circuit in casing and the lid, makes the security higher.

Furthermore, the pressing plate is provided with a positioning groove matched with the sealing piece in shape, and when the pressing plate is connected and pressed tightly with the inner wall of the shell, one side end face of the sealing piece is positioned in the positioning groove.

Through foretell technical scheme for the gasket is more stable in the position after the pressurized piece compresses tightly, has reduced the gasket because of the vibration that the during operation produced with rock the condition that takes place the offset, makes the inboard switch main shaft of laminating all the time of gasket, has guaranteed the sealed effect in shaft hole.

Furthermore, the sealing piece is integrally in a circular ring shape, and the positioning grooves are correspondingly circular.

Through foretell technical scheme for the gasket is more even in the ascending atress of circumference, has avoided the gasket to produce the condition in clearance because of the atress inequality appears between gasket and the switch main shaft, has guaranteed the sealed effect of shaft hole department.

Furthermore, the pressing plate and the side wall of the shell are correspondingly provided with fixing holes for mounting fasteners.

Through foretell technical scheme, fixed orifices simple structure connects the installation that can realize the clamp plate on shells inner wall with the clamp plate through the fastener, and it is very convenient to use.

Furthermore, two fixing holes are symmetrically formed in the pressing plate or the shell.

Through foretell technical scheme for the clamp plate is connected the back with the casing, and its both sides atress is more even, makes the gasket atress more even, makes the gasket can closely laminate switch main shaft week side, has also avoided the gasket to appear the condition of sclerosis because of the atress is uneven, makes life longer.

Furthermore, the connecting device comprises a first lug and a second lug which are respectively arranged on the side wall of the shell and the side wall of the cover body, and mounting holes for mounting fasteners are correspondingly arranged on the first lug and the second lug.

Through the technical scheme, the first bump and the second bump are simple in structure and low in production difficulty and production cost; the user utilizes the fastener to connect first lug and second lug and can realize the connection of casing and lid, and it is very convenient to use.

Further, be provided with the jack on the switch main shaft, the jack is located outside the casing, the jack with the connection can be dismantled to the handle bar, be provided with the bulb on the handle bar one end, the bulb diameter is greater than the jack internal diameter.

Through the technical scheme, the switch main shaft can be rotated by inserting the handle rod into the jack, and the handle rod is pulled out of the jack after the switch main shaft is rotated to a proper position, so that the switch main shaft can be effectively prevented from rotating due to mistaken touch, and the use is safer; the arrangement of the ball head enables the handle rod not to slide out of the insertion hole easily once the handle rod is inserted into the insertion hole, and therefore the handle rod is more convenient to use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a partial enlarged view of the point A of the present invention;

fig. 4 is an exploded view of the present invention;

FIG. 5 is a schematic view of a platen part of the present invention;

utility model reference number information as follows:

1. a housing; 2. a cover body; 3. a shaft hole; 4. switching on and off the main shaft; 5. a handle bar; 6. a sealing groove; 7. sealing the sheet; 8. pressing a plate; 9. positioning a groove; 10. a fixing hole; 11. a first bump; 12. a second bump; 13. mounting holes; 14. a jack; 15. a ball head;

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 5 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly 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 feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1, 2, 3, 4: the utility model provides an outdoor waterproof limit switch, including casing 1 and lid 2, shaft hole 3 has been seted up on the

casing

1, 3 internal rotations in shaft hole are connected with switch main shaft 4, be connected with the handle bar 5 that is used for pulling switch main shaft 4 on the switch main shaft 4, be provided with the connecting device who is used for dismantling connecting casing 1 and lid 2 on casing 1 or the lid 2, be provided with on the 2 opening edges of lid and seal groove 6 with 1 opening edge adaptation of casing, the cover is equipped with gasket 7 and clamp plate 8 that are used for sealed shaft hole 3 on the switch main shaft 4, gasket 7 and clamp plate 8 all are located inside the casing 1, clamp plate 8 can be dismantled with casing 1 and be connected and extrude gasket 7 on 1 inner wall of casing, shaft hole 3 position and 1 opening edge separation of casing. Shaft hole 3 utilizes gasket 7 that clamp plate 8 compressed tightly to seal the processing, utilizes 1 border of casing all to realize sealed processing in seal groove 6 everywhere between casing 1 and the lid 2, and

shaft hole

3 and 1 opening border of casing separately seal the processing for the sealed degree of difficulty of this device is littleer, sealed effect is better, has avoided external moisture to get into and has corroded the circuit in casing 1 and the lid 2, makes the security higher. The sealing groove 6 is arranged on the opening edge of the cover body 2, which is the preferred of the utility model; when the sealing groove 6 is arranged on the cover body 2, the sealing groove 6 is arranged downwards, rainwater cannot be deposited in the sealing groove 6, and erosion of the rainwater to the sealing groove 6 is reduced; however, the sealing groove 6 is disposed on the opening edge of the casing 1 and is not matched with the opening edge of the cover 2.

As shown in fig. 4 and 5: the pressing plate 8 is provided with a positioning groove 9 matched with the contour shape of the sealing piece 7, and when the pressing plate 8 is connected and pressed with the inner wall of the shell 1, one side end face of the sealing piece 7 is positioned in the positioning groove 9. Make the gasket 7 more stable in the position after the pressurized piece compresses tightly, reduced the gasket 7 because of the during operation produced vibration with rock the condition that takes place the offset for the inboard switch main shaft 4 that laminates all the time of gasket 7 has guaranteed the sealed effect in shaft hole 3.

The sealing sheet 7 is circular, and the positioning groove 9 is circular correspondingly. Make the gasket 7 more even at ascending atress in circumference, avoided gasket 7 to appear because of the atress inequality the gasket 7 and switch main shaft 4 between produce the condition in clearance, guaranteed the sealed effect of shaft hole 3 department. The sealing groove 6 and the sealing piece 7 are circular in the circumferential direction, and the shape of the sealing groove 6 and the sealing piece 7 in the circumferential direction can be other shapes, for example: oval, polygonal, heart-shaped or star-shaped. The material of the sealing disc 7 is preferably rubber.

The press plate 8 and the side wall of the shell 1 are correspondingly provided with fixing holes 10 for installing fasteners. The fixing hole 10 is simple in structure, the pressing plate 8 is connected to the inner wall of the shell 1 through the fastening piece, the pressing plate 8 can be installed, and the use is very convenient. The utility model discloses preferably utilize the connected mode of bolt and nut to realize clamp plate 8 and casing 1's connection.

Two fixing holes 10 are symmetrically arranged on the pressure plate 8 or the shell 1. After the pressing plate 8 is connected with the shell 1, the stress on two sides of the pressing plate is more uniform, the stress on the sealing sheet 7 is more uniform, the sealing sheet 7 can be tightly attached to the periphery of the switch main shaft 4, the situation that the sealing sheet 7 is hardened due to uneven stress is avoided, and the service life is longer.

The connecting device comprises a first lug 11 and a second lug 12 which are respectively arranged on the side wall of the shell 1 and the side wall of the cover body 2, and mounting holes 13 for mounting fasteners are correspondingly arranged on the first lug 11 and the second lug 12. The first bump 11 and the second bump 12 have simple structures and low production difficulty and cost; the user can connect the housing 1 and the cover 2 by connecting the first projection 11 and the second projection 12 with a fastener, and the use is very convenient. The present invention preferably utilizes the bolt and nut connection to achieve the connection of the first projection 11 and the second projection 12.

The switch main shaft 4 is provided with a jack 14, the jack 14 is positioned outside the shell 1, the jack 14 is detachably connected with the handle rod 5, one end of the handle rod 5 is provided with a ball head 15, and the diameter of the ball head 15 is larger than the inner diameter of the jack 14. The handle rod 5 is inserted into the insertion hole 14, so that the switch main shaft 4 can be rotated, the handle rod 5 is pulled out of the insertion hole 14 after the switch main shaft 4 is rotated to a proper position, the switch main shaft 4 can be effectively prevented from rotating due to mistaken touch, and the use is safer; the ball head 15 is arranged so that the handle bar 5 is not easy to slide out of the insertion hole 14 once inserted into the insertion hole 14, and the use is more convenient.

When the device is installed, firstly, a pressing plate 8 and a sealing sheet 7 are required to be sleeved on a switch spindle 4, secondly, the pressing plate 8 is connected with the inner wall of a shell 1, meanwhile, the sealing sheet 7 is extruded on the inner wall of the shell 1, then, the edge of an opening of the shell 1 is aligned to a sealing groove 6 and is spliced, and finally, a first lug 11 and a second lug 12 are connected by a fastener; when the device is used, the handle rod 5 is inserted into the insertion hole 14, and then the switch main shaft 4 is rotated by using the handle rod 5.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all be in the utility model discloses a under the design, utilize the equivalent structure transform of what the content of the description and the attached drawing was done, or direct/indirect application all includes in other relevant technical field the utility model discloses a patent protection is within range.

Claims

1. The utility model provides an outdoor waterproof limit switch, includes casing (1) and lid (2), shaft hole (3) have been seted up on casing (1), the internal rotation in shaft hole (3) is connected with switch main shaft (4), be connected with on switch main shaft (4) and be used for pulling handle bar (5) of switch main shaft (4), casing (1) or/and be provided with on lid (2) and be used for dismantling the connection casing (1) with the connecting device of lid (2), its characterized in that: be provided with on lid (2) opening border with seal groove (6) of casing (1) opening border adaptation, the cover is equipped with on switch main shaft (4) and is used for sealing gasket (7) and clamp plate (8) of shaft hole (3), gasket (7) with clamp plate (8) all are located casing (1) is inside, clamp plate (8) with casing (1) can be dismantled to be connected and will gasket (7) extrusion is on casing (1) inner wall, shaft hole (3) position with casing (1) opening border separation.

2. An outdoor watertight limit switch according to claim 1, characterized in that: be provided with on clamp plate (8) with constant head tank (9) of gasket (7) profile shape adaptation, clamp plate (8) with when casing (1) inner wall connection compresses tightly, gasket (7) a side end face is located in constant head tank (9).

3. An outdoor watertight limit switch according to claim 2, characterized in that: the sealing piece (7) is integrally in a ring shape, and the positioning groove (9) is correspondingly circular.

4. An outdoor watertight limit switch according to claim 1, 2 or 3, characterized in that: the pressing plate (8) and the side wall of the shell (1) are correspondingly provided with fixing holes (10) for installing fasteners.

5. An outdoor watertight limit switch according to claim 4, wherein: two fixing holes (10) are symmetrically formed in the pressure plate (8) or the shell (1).

6. An outdoor watertight limit switch according to claim 1 or 2 or 3 or 5, wherein: the connecting device comprises a first convex block (11) and a second convex block (12) which are respectively arranged on the side wall of the shell (1) and the side wall of the cover body (2), and mounting holes (13) for mounting fasteners are correspondingly arranged on the first convex block (11) and the second convex block (12).

7. An outdoor watertight limit switch according to claim 6, characterized in that: be provided with jack (14) on switch main shaft (4), jack (14) are located outside casing (1), jack (14) with handle bar (5) can be dismantled and be connected, handle bar (5) serve and be provided with bulb (15), bulb (15) diameter is greater than jack (14) internal diameter.