CN213025877U

CN213025877U - Limit switch of corrosion-resistant protective shell

Info

Publication number: CN213025877U
Application number: CN202022538218.6U
Authority: CN
Inventors: 张一帆
Original assignee: Zhuozhou Youvalve Automation Equipment Co ltd
Current assignee: Zhuozhou Youvalve Automation Equipment Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-04-20
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a limit switch of corrosion-resistant protective shell, which comprises a switch body and a rocker arm component, wherein the rocker arm component is arranged on the outer wall of one side of the switch body, the outer wall of a high polymer layer is coated with an epoxy resin coating, the limit switch has good corrosion resistance and high temperature resistance, a lime layer is arranged on the inner wall of the high polymer layer, the internal water vapor can be absorbed, the corrosion of internal metal parts is prevented, the strength of the shell is increased by the cooperation of the three components, the service life is prolonged, the cover body can be easily opened and closed by the cooperation of a connecting rod, a rubber pad, a fixture block and a reset spring, the daily inspection and maintenance are convenient, the sealing performance is ensured at the same time, the connecting arm, a movable groove, a sleeve shell, an adjusting hole, a limiting block, a limiting groove and a return spring are matched, the length of the rocker arm body can be changed, the adjusting process is extremely simple, the stability is good, and the application range is wide.

Description

Limit switch of corrosion-resistant protective shell

Technical Field

The utility model relates to a limit switch technical field specifically is a corrosion-resistant protective housing's limit switch.

Background

The limit switch is also called travel switch and position switch, and is a common small current master control electrical appliance. The contact of the mechanical motion part is operated by the collision to realize the connection or disconnection of the control circuit, thereby achieving a certain control purpose. Generally, such switches are used to limit the position or stroke of the movement of the machine, so that the moving machine can automatically stop, move in reverse, shift or automatically move back and forth according to a certain position or stroke. In actual production, the travel switch is arranged at a prearranged position, and when a module arranged on a moving part of the production machine impacts the travel switch, the contact of the travel switch acts to realize the switching of a circuit. Thus, a travel switch is an electrical device that switches circuits depending on the travel position of a moving part, and functions in a manner similar to a push button.

The leakproofness of current limit switch shell is relatively poor, the easy corrosion of inside precision part, often lost convenient to detach's advantage when guaranteeing the leakproofness, when maintaining the inner structure, the dismantlement process is troublesome relatively and influence limit switch's leakproofness, secondly limit switch installs usually on the outer wall of equipment, sometimes the moving part of equipment has certain distance at a distance from the equipment outer wall, and limit switch's rocking arm length is fixed, thereby lead to some equipment to be difficult to install limit switch, limit switch has certain limitation.

Therefore, we have proposed a limit switch of corrosion-resistant protective housing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a limit switch of corrosion-resistant protective housing through shell material, scalable fixed rocking arm and the cooperation of the dismantlement lid of being convenient for to open to the problem that proposes in the above-mentioned background has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: a limit switch of a corrosion-resistant protective shell comprises a switch body and a rocker arm assembly, wherein the rocker arm assembly is arranged on the outer wall of one side of the switch body, the switch body comprises a shell, a threading hole, a hinge and a disassembling cover, the outer wall of one side of the shell is provided with the threading hole, one end of the hinge is fixedly connected to the edge above the threading hole, the other end of the hinge is fixedly connected with the disassembling cover, and the rocker arm assembly is fixedly connected to the side wall of the shell opposite to the threading hole;

the rocker arm assembly comprises a connecting piece, a rotating shaft and a rocker arm body, the rotating shaft is arranged at the top end of the connecting piece, and the rocker arm body is sleeved at the upper end of the rotating shaft.

Furthermore, the shell is a member made of an epoxy resin coating, a high polymer layer and a lime layer material, the epoxy resin coating is coated on the outer wall of the high polymer layer, and the lime layer is arranged on the inner wall of the high polymer layer.

Further, dismantle the lid including lid, rubber pad, data plate and block subassembly, the bottom of lid bonds there is the rubber pad, the upper end fixedly connected with data plate of lid, and one side of data plate is provided with the block subassembly.

Further, the block subassembly includes connecting rod, fixture block and reset spring, and fixed connection is in the inside of lid respectively at the upper and lower both ends of connecting rod, and the fixture block has been cup jointed in the activity on the outer wall of connecting rod, and the upper and lower both ends of fixture block extend to the outside of lid respectively, and the bottom of fixture block is provided with the trip, and the notch has been seted up with the corresponding place of trip to the inner wall of shell, fixedly connected with reset spring between the lateral wall on fixture block top and the lid inner wall.

Further, the rocking arm body includes linking arm, movable groove, card hole, cover shell, regulation hole and gyro wheel, and the fixed cup joint of one end of linking arm has been seted up movable groove in the upper end of pivot, and the card hole has evenly been seted up to the bottom of movable groove, and the cover shell has been cup jointed to the end of linking arm, and the edge that the cover shell upper end is close to the linking arm has seted up the regulation hole, and the other end of cover shell is provided with the gyro wheel.

Furthermore, it has the regulation pole to run through between the inner wall of regulation hole, adjusts the top fixedly connected with easy-pulling piece of pole, fixedly connected with stopper on the lateral wall of regulation pole, has seted up the spacing groove on the both sides inner wall of regulation hole respectively, fixedly connected with back-pushing spring between stopper and the spacing groove.

Furthermore, the diameter of the adjusting rod is equal to that of the clamping hole, and the width of the limiting block is smaller than that of the limiting groove.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides a limit switch of corrosion-resistant protective housing, the shell is by the epoxy coating, the component that polymer layer and lime layer material were made, the coating has the epoxy coating on polymer layer's the outer wall, the epoxy coating has fine corrosion resistance and high temperature resistance, be provided with the lime layer on polymer layer's the inner wall, the lime layer can absorb inside steam, prevent the corrosion of inside metal part, the three cooperation has not only increased the intensity of shell, more fine protection inner structure, limit switch's life has been improved.

2. The utility model provides a pair of corrosion-resistant protective housing's limit switch, the bottom of lid bonds there is the rubber pad, and one side of data plate is provided with the block subassembly, through connecting rod, fixture block and reset spring's cooperation, can realize the lid and easily open and shut, is convenient for daily to inspect and maintain the change to internal component, and rubber pad cooperation block subassembly can effectively be under the prerequisite of guaranteeing the leakproofness simultaneously, realizes that the lid opens and shuts many times, and is good in structure, and it is convenient to use.

3. The utility model provides a limit switch of corrosion-resistant protective shell, the upper end of linking arm is equipped with the movable groove, the bottom of movable groove is evenly equipped with the card hole, the end of linking arm has cup jointed the cover shell, the edge that the cover shell upper end is close to the linking arm has seted up the regulation hole, run through between the inner wall of regulation hole has the regulation pole, the top fixedly connected with easy-to-draw piece of regulation pole, fixedly connected with the stopper on the lateral wall of regulation pole, limit groove has respectively been seted up on the both sides inner wall of regulation hole, fixedly connected with back spring between stopper and the limit groove, each part cooperation can change the length of rocking arm body according to the demand of different equipment, the discomfort of part equipment is solved, simultaneously card hole and regulation pole can carry out the block fixation within a certain range, guarantee the stability of rocking arm body is whole, only need to stimulate the regulation pole to select suitable position, the adjusting process is extremely simple, and the application range of the limit switch is wide.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

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

FIG. 3 is a schematic view of the detachable cover structure of the present invention;

FIG. 4 is a schematic structural view of the fastening assembly of the present invention;

FIG. 5 is a schematic structural view of the rocker arm assembly of the present invention;

FIG. 6 is a schematic structural view of the rocker arm body of the present invention;

fig. 7 is a schematic view of the structure of the adjusting hole of the present invention.

In the figure: 1. a switch body; 11. a housing; 111. an epoxy resin coating; 112. a polymer layer; 113. a lime layer; 12. threading holes; 13. a hinge; 14. disassembling the cover; 141. a cover body; 142. a rubber pad; 143. a nameplate; 144. clamping the assembly; 1441. a connecting rod; 1442. a clamping block; 1443. a return spring; 2. a rocker arm assembly; 21. a connecting member; 22. a rotating shaft; 23. a rocker arm body; 231. a connecting arm; 232. a movable groove; 233. a clamping hole; 234. a housing; 235. an adjustment hole; 2351. adjusting a rod; 2352. a readily-pulling block; 2353. a limiting block; 2354. a limiting groove; 2355. a back spring; 236. and a roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in 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 work belong to the protection scope of the present invention.

Referring to fig. 1-2, a limit switch of a corrosion-resistant protective shell comprises a switch body 1 and a rocker arm component 2, the rocker arm component 2 is arranged on the outer wall of one side of the switch body 1, the switch body 1 comprises a shell 11, a threading hole 12, a hinge 13 and a detachable cover 14, the shell 11 is a member made of epoxy resin coating 111, high polymer layer 112 and lime layer 113, the epoxy resin coating 111 is coated on the outer wall of the high polymer layer 112, the epoxy resin coating 111 has good corrosion resistance and high temperature resistance, the inner wall of the high polymer layer 112 is provided with a lime layer 113, the lime layer 113 can absorb the water vapor inside, so as to prevent the metal parts inside from being rusted, the strength of the shell 11 is increased by the cooperation of the three, the internal structure is well protected, the service life of the limit switch is prolonged, the threading hole 12 is arranged on the outer wall of one side of the shell 11, the top edge fixedly connected with hinge 13's of through wires hole 12 one end, hinge 13's other end fixedly connected with dismantles lid 14, fixedly connected with rocking arm subassembly 2 on the relative lateral wall of shell 11 and through wires hole 12.

Referring to fig. 3-4, a limit switch of a corrosion-resistant protective housing, a detachable cover 14 includes a cover 141, a rubber pad 142, a nameplate 143, and a locking assembly 144, the rubber pad 142 is bonded to the bottom end of the cover 141, the nameplate 143 is fixedly connected to the upper end of the cover 141, the locking assembly 144 is disposed beside the nameplate 143, the locking assembly 144 includes a connecting rod 1441, a locking block 1442, and a return spring 1443, the upper and lower ends of the connecting rod 1441 are respectively fixedly connected to the inside of the cover 141, the outer wall of the connecting rod 1441 is movably sleeved with the locking block 1442, the upper and lower ends of the locking block 1442 respectively extend to the outside of the cover 141, the bottom end of the locking block 1442 is provided with a locking hook, a notch is formed at a position corresponding to the locking hook on the inner wall of the housing 11, the return spring 1443 is fixedly connected between the side wall at the top end of the locking block 1442, meanwhile, the rubber pad 142 is matched with the clamping assembly 144, so that the cover body 141 can be opened and closed for multiple times on the premise of ensuring the sealing performance, and the structure is excellent and convenient to use.

Referring to fig. 5-7, a limit switch of a corrosion-resistant protective housing, a rocker arm assembly 2 includes a connecting piece 21, a rotating shaft 22 and a rocker arm body 23, the rotating shaft 22 is disposed at the top end of the connecting piece 21, the rocker arm body 23 is sleeved on the upper end of the rotating shaft 22, the rocker arm body 23 includes a connecting arm 231, a movable groove 232, a clamping hole 233, a casing 234, an adjusting hole 235 and a roller 236, one end of the connecting arm 231 is fixedly sleeved on the upper end of the rotating shaft 22, the upper end of the connecting arm 231 is disposed with the movable groove 232, the bottom of the movable groove 232 is uniformly disposed with the clamping hole 233, the casing 234 is sleeved on the tail end of the connecting arm 231, the edge of the upper end of the casing 234 near the connecting arm 231 is disposed with the adjusting hole 235, an adjusting rod 2351 penetrates through the inner wall of the adjusting hole 235, the diameter of the adjusting rod 2351 is equal to the diameter, spacing groove 2354 has been seted up on the both sides inner wall of regulation hole 235 respectively, and the width of stopper 2353 is less than spacing groove 2354's width, fixedly connected with back-up spring 2355 between stopper 2353 and the spacing groove 2354, each part cooperation can change the length of rocking arm body 23 according to the demand of different equipment, partial equipment's inadaptability has been solved, it is fixed that card hole 233 and regulation pole 2351 can carry out the block in certain extent simultaneously, guarantee the holistic stability of rocking arm body 23, only need stimulate during the operation to adjust pole 2351 and select suitable position to loosen and to fix, accommodation process is extremely simple, and limit switch's application scope is extensive, the other end of cover 234 is provided with gyro wheel 236.

In summary, the following steps: the utility model provides a limit switch of corrosion-resistant protective housing, shell 11 is by epoxy coating 111, the component that polymer layer 112 and lime layer 113 material were made, it has epoxy coating 111 to coat on polymer layer 112's the outer wall, epoxy coating 111 has fine corrosion resistance and high temperature resistance, be provided with lime layer 113 on polymer layer 112's the inner wall, lime layer 113 can absorb the steam of inside, prevent inside metal part corrosion, the cooperation of three has not only increased shell 11's intensity, more fine protection inner structure, limit switch's life has been improved; the rubber pad 142 is bonded at the bottom end of the cover body 141, the clamping assembly 144 is arranged beside the nameplate 143, the cover body 141 can be opened and closed easily through the matching of the connecting rod 1441, the clamping block 1442 and the reset spring 1443, the internal components can be inspected, maintained and replaced conveniently in daily life, meanwhile, the cover body 141 can be opened and closed for multiple times through the matching of the rubber pad 142 and the clamping assembly 144, the structure is good, and the use is convenient; the upper end of the connecting arm 231 is provided with a movable groove 232, the bottom of the movable groove 232 is uniformly provided with clamping holes 233, the tail end of the connecting arm 231 is sleeved with a sleeve 234, the edge of the upper end of the sleeve 234, which is close to the connecting arm 231, is provided with an adjusting hole 235, an adjusting rod 2351 penetrates through the inner wall of the adjusting hole 235, the top end of the adjusting rod 2351 is fixedly connected with an easy-pull block 2352, the side wall of the adjusting rod 2351 is fixedly connected with a limit block 2353, the inner walls of the two sides of the adjusting hole 235 are respectively provided with a limit groove 2354, a back-push spring 2355 is fixedly connected between the limit block 2353 and the limit groove 2354, each part can be matched to change the length of the rocker arm body 23 according to the requirements of different devices, the discomfort of part of the devices is solved, meanwhile, the clamping holes 233 and the adjusting rod 2351 can be clamped and fixed within a certain range, the adjusting process is extremely simple, and the application range of the limit switch is wide.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a limit switch of corrosion-resistant protective housing, includes switch body (1) and rocker arm component (2), is provided with rocker arm component (2), its characterized in that on one side outer wall of switch body (1): the switch body (1) comprises a shell (11), a threading hole (12), a hinge (13) and a dismounting cover (14), wherein the threading hole (12) is formed in the outer wall of one side of the shell (11), one end of the hinge (13) is fixedly connected to the edge of the upper portion of the threading hole (12), the dismounting cover (14) is fixedly connected to the other end of the hinge (13), and a rocker arm assembly (2) is fixedly connected to the side wall, opposite to the threading hole (12), of the shell (11);

the rocker arm assembly (2) comprises a connecting piece (21), a rotating shaft (22) and a rocker arm body (23), the rotating shaft (22) is arranged at the top end of the connecting piece (21), and the rocker arm body (23) is sleeved at the upper end of the rotating shaft (22).

2. The limit switch of claim 1, wherein: the shell (11) is a member made of epoxy resin coating (111), high polymer layer (112) and lime layer (113), the epoxy resin coating (111) is coated on the outer wall of the high polymer layer (112), and the lime layer (113) is arranged on the inner wall of the high polymer layer (112).

3. The limit switch of claim 1, wherein: the detachable cover (14) comprises a cover body (141), a rubber pad (142), a nameplate (143) and a clamping assembly (144), the rubber pad (142) is bonded to the bottom end of the cover body (141), the nameplate (143) is fixedly connected to the upper end of the cover body (141), and the clamping assembly (144) is arranged beside the nameplate (143).

4. A limit switch for a corrosion resistant protective enclosure according to claim 3, wherein: the clamping assembly (144) comprises a connecting rod (1441), a clamping block (1442) and a return spring (1443), the upper end and the lower end of the connecting rod (1441) are fixedly connected to the inside of the cover body (141) respectively, the clamping block (1442) is movably sleeved on the outer wall of the connecting rod (1441), the upper end and the lower end of the clamping block (1442) extend to the outside of the cover body (141) respectively, a clamping hook is arranged at the bottom end of the clamping block (1442), a notch is formed in the inner wall of the shell (11) and the corresponding place of the clamping hook, and the return spring (1443) is fixedly connected between the side wall of the top end of the clamping block (1442) and the.

5. The limit switch of claim 1, wherein: rocking arm body (23) are including linking arm (231), movable slot (232), card hole (233), cover shell (234), adjust hole (235) and gyro wheel (236), the fixed upper end at pivot (22) of cup jointing of one end of linking arm (231), movable slot (232) have been seted up to the upper end of linking arm (231), card hole (233) have evenly been seted up to the bottom of movable slot (232), cover shell (234) have been cup jointed to the end of linking arm (231), cover shell (234) upper end is close to the edge of linking arm (231) and has been seted up and adjust hole (235), the other end of cover shell (234) is provided with gyro wheel (236).

6. The limit switch of claim 5, wherein: the adjusting rod (2351) penetrates through the inner wall of the adjusting hole (235), the top end fixedly connected with easy-pulling block (2352) of the adjusting rod (2351) is provided, the side wall of the adjusting rod (2351) is fixedly connected with a limiting block (2353), the inner walls of two sides of the adjusting hole (235) are respectively provided with a limiting groove (2354), and a back-pushing spring (2355) is fixedly connected between the limiting block (2353) and the limiting groove (2354).

7. The limit switch of claim 6, wherein: the diameter of the adjusting rod (2351) is equal to that of the clamping hole (233), and the width of the limiting block (2353) is smaller than that of the limiting groove (2354).