CN217444240U

CN217444240U - High-protection safety switch

Info

Publication number: CN217444240U
Application number: CN202123204348.7U
Authority: CN
Inventors: 王晓强; 张伟; 叶身河
Original assignee: Shanghai Tayee Electric Co Ltd
Current assignee: Shanghai Tayee Electric Co Ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-09-16
Anticipated expiration: 2031-12-20

Abstract

The utility model relates to a high-protection safety switch, including switch body and executive component, the cam of switch body passes through the roller bearing assembly on the fixed block, the slider overlaps respectively in the left and right sides of fixed block, auxiliary spring supports respectively and holds in the corresponding circular slot of slider, the supporting spring cover is downthehole at the afterbody of movable contact subassembly, wholly pack into casing one side, the apron of waterproof pad is taken in the mounting of fastening screw to the casing opposite side, the rubber ways is at the corresponding inslot of transfer line, wholly assemble downthehole at movable contact subassembly, the clamping ring is pressed the lower flange of rubber ways at the casing and corresponds the annular, switching pole lower extreme cylinder is placed and is corresponded downthehole at the transfer line upper end, the groove corresponds the switching pole assembly on the casing under the fixed block, the upper cover corresponds the assembly and locks with set screw on the casing, the upper cover top is equipped with the dust plug. The protection level of the safety switch can reach IP67, and the cam with a special shape is designed, so that the switch can realize various installation modes and is diversified in application.

Description

High-protection safety switch

Technical Field

The utility model relates to a limit switch especially relates to the safety switch who has the execute component, is fit for the door-trip, high protection.

Background

At trades such as wind-powered electricity generation, elevator, engineering machine tool, there is an application scene, when the door was opened or was closed, required room or some regional equipment to be stopped or started, will use corresponding door switch, install executive component on the door usually, the switch body is installed at the door frame relevant position, otherwise does, when the door is closed or is opened, executive component inserts or extracts the inside contact of drive switch along with the door removes, realizes the disconnection and the closure of circuit, on the basis, the utility model discloses a safety switch of high protection.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the application scene of proposing in the background art, provide a safety switch of high protection.

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

a high-protection safety switch comprises a switch body and an execution element, wherein the switch body at least comprises a dustproof plug, an upper cover, a cam, a sliding block, an auxiliary spring, a fixing block, a rolling shaft, a transfer rod, a transmission rod, a rubber sleeve, a pressing ring, a shell, a movable contact component and a supporting spring, a cover plate and a waterproof pad are arranged on the switch body, the cam is assembled on the fixing block through the rolling shaft, the sliding block is respectively sleeved on the left side and the right side of the fixing block, the auxiliary spring is respectively supported in a corresponding circular groove of the sliding block, the supporting spring is sleeved in a tail hole of the movable contact component, the supporting spring is integrally installed on one side of the shell, the other side of the shell is provided with the cover plate with the waterproof pad through a fastening screw, the rubber sleeve is sleeved in a corresponding groove of the transmission rod and integrally assembled in an upper end hole of the movable contact component, the pressing ring presses a lower flange of the rubber sleeve in a corresponding circular groove of the shell, a lower end cylinder of the transfer rod is placed in a corresponding hole of the upper end of the transmission rod, the fixed block lower groove is assembled on the shell correspondingly to the switching rod, the upper cover is assembled on the shell correspondingly and locked by the fixing screw, and the top end of the upper cover is provided with the dustproof plug.

Furthermore, the two sliding blocks are arranged on the left side and the right side of the fixed block in a mirror symmetry mode, the sliding blocks are assembled on shafts on the left side of the fixed block through center holes respectively, and the sliding blocks can only do one-way reciprocating motion through the matching of protrusions at the lower ends of the sliding blocks and sliding grooves in the fixed block.

Furthermore, the transmission rod is assembled in the diamond hole of the shell, the upper hole of the rubber sleeve is clamped in the annular groove of the transmission rod by means of the elasticity of rubber, and the lower end flange of the rubber sleeve is assembled in the annular groove of the shell and is embedded into the shell in an interference manner by the pressing ring.

Furthermore, the transmission rod is 7-shaped, the transmission rod is connected with the cam through the adapter rod, and the normal use can be realized when the motion center of the cam and the motion direction of the transmission rod are not on the same straight line.

Furthermore, the cam is in an irregular shape, the executing element contact bulges are arranged in the horizontal direction and the vertical direction, the cam is provided with a switching rod butting groove, when the executing element is inserted, the executing element is contacted with the executing element contact bulges and pushes the cam to rotate, the switching rod butting groove is butted with a switching rod which is pushed up under the action of a supporting spring,

furthermore, the side surface and the right upper surface of the upper cover are respectively provided with an actuating element insertion opening, and the locking structure of the cam is designed, so that the actuating element can be inserted and pulled out from the front side and can also be inserted and pulled out from the upper side.

Compared with the prior art, the beneficial effects of the utility model are that: the high-protection safety switch comprises a switch body and an actuator, wherein when the actuator is inserted or pulled out, the actuator drives a cam to rotate, a switching rod is contacted with the cam and moves up and down through the rotation of the cam to transmit force to a transmission rod, and the transmission rod is connected with a movable contact frame in a buckling manner, so that the force is transmitted to a support spring, the elastic force of the support spring is counteracted, and the connection or disconnection of a contact is realized; the transmission rod and the shell in the shell are in sealing connection through a sealing sleeve, the pressing ring and the shell are installed in an interference mode, the protection grade can reach IP67, and the switch can achieve multiple installation modes and is diversified in application due to the design of the cam with a special shape.

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 these drawings without inventive exercise.

Fig. 1 is an explosion structure diagram of the safety switch of the present invention;

FIG. 2 is a state diagram of the safety switch of the present invention when the safety switch actuator is not inserted;

FIG. 3 is a state diagram of the safety switch according to the present invention when the safety switch actuator is inserted;

fig. 4 is an explosion structure view of the safety switch cam mounting part of the present invention;

FIG. 5 is a view showing a mounting structure of the cam mounting portion of the safety switch of the present invention;

wherein, 1, dust plug; 2. an upper cover; 3. a cam; 31. an actuator contact projection; 32. The adapter rod abuts against the groove; 4. a slider; 5. an auxiliary spring; 6. a fixed block; 7. a roller; 8. a transfer lever; 9. a transmission rod; 10. a rubber sleeve; 11. pressing a ring; 12. a housing; 13. a movable contact assembly; 14. a support spring; 15. a cover plate; 16. a waterproof pad; 17. fastening screws; 18. a fixing screw; 19. an actuator; 20. an execution element insertion port; 21. a stationary contact assembly.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.

As shown in fig. 1 to 5, a high-protection safety switch comprises a switch body and an actuating element, wherein the switch body comprises a dustproof plug 1, an upper cover 2, a cam 3, a sliding block 4, an auxiliary spring 5, a fixed block 6, a rolling shaft 7, an adapter rod 8, a transmission rod 9, a rubber sleeve 10, a pressing ring 11, a shell 12, a movable contact assembly 13, a support spring 14, a cover plate 15 and a waterproof pad 16, the cam 3 is assembled on the fixed block 6 through the rolling shaft 7, the sliding block 4 is respectively sleeved on the left side and the right side of the fixed block 6, the auxiliary spring 5 is respectively abutted in a corresponding circular groove of the sliding block 4, the support spring 14 is sleeved in a tail hole of the movable contact assembly 13, the whole is installed on one side of the shell 12, the other side of the shell 12 is provided with the cover plate 15 with the waterproof pad 16 through a fastening screw 17, the rubber sleeve 10 is sleeved in a corresponding groove of the transmission rod 9 and is integrally assembled in an upper end hole of the movable contact assembly 13, a fixed contact assembly 21 is installed in an end hole of the movable contact assembly 13, the lower flange of rubber sleeve 10 is pressed in the corresponding annular groove of casing 12 by clamping ring 11, and the lower extreme cylinder of switching pole 8 is placed in the corresponding hole in the upper end of transfer line 9, and the corresponding switching pole 8 of fixed block 6 lower groove assembles on casing 12, and upper cover 2 corresponds the assembly and is locked with set screw 18 on casing 12, and the 2 tops of upper cover are equipped with dust plug 1.

The two sliding blocks 4 are arranged on the left side and the right side of the fixed block 6 in a mirror symmetry mode, the sliding blocks 4 are assembled on a shaft on the left side of the fixed block 6 through center holes respectively, and the sliding blocks 4 can only do one-way reciprocating motion through the matching of a protruding block at the lower end of each sliding block 4 and a sliding groove in the fixed block 6.

The transmission rod 9 is assembled in a diamond hole of the shell 12, an upper hole of the rubber sleeve 10 is clamped in an annular groove of the transmission rod 9 by means of elasticity of rubber, a lower end flange of the rubber sleeve 10 is assembled in the annular groove of the shell 12, and the lower end flange is embedded in the shell 12 in an interference mode through the pressing ring 11.

The transmission rod 9 is 7-shaped, the transmission rod 9 is connected with the cam 3 through the adapter rod 9, and the normal use can be realized when the motion center of the cam 3 and the motion direction of the transmission rod 9 are not in the same straight line.

The cam 3 is in an irregular shape, the actuating element contact bulge 31 is arranged in the horizontal direction and the vertical direction, the cam 3 is provided with an adapter rod abutting groove 32, when the actuating element 19 is inserted, the actuating element 19 is contacted with the actuating element contact bulge 31 and pushes the cam 3 to rotate, the adapter rod abutting groove 32 abuts against the adapter rod 8 which is pushed up by the action of the supporting spring 14,

the side and right above of the upper cover 2 are respectively provided with an actuating element insertion opening 20, and the locking structure of the cam 3 is designed to ensure that the actuating element 19 can be inserted and pulled out from the front side and also can be inserted and pulled out from the upper side.

The use principle is as follows: as shown in fig. 4 and 5, the slider 4A and the slider 4B are mirror image parts, the slider 4A is assembled on a shaft on the left side of the fixed block 6 through a central hole, and is matched with a sliding groove on the fixed block 6 through a convex block at the lower end of the slider 4A, so that the slider can only do one-way reciprocating motion, and the slider 4B is assembled on the other side of the fixed block 6 in the same way as the slider 4A. When the actuating element 19 is inserted into the corresponding hole, the inclined surface of the front section of the actuating element 19 firstly contacts the sliding block 4A and the sliding block 4B, the sliding block 4A and the sliding block 4B supported by the auxiliary spring 5 are pushed away towards two sides, and after the overlapping parts of the sliding block 4A and the sliding block 4B and the clamping groove of the cam 3 are separated, the actuating element 19 drives the cam 3 to rotate. When the actuating element 19 is pulled out, after the cam 3 moves to the corresponding position along with the actuating element 19, the sliding block 4A and the sliding block 4B are supported by the auxiliary spring 5 to return to the corresponding clamping groove position of the cam 3, so that the cam 3 is fixed, and the actuating element 19 with the structure can be inserted and pulled out from the front side and can also be inserted and pulled out from the upper side.

The switch body and the actuating element with the structure are respectively arranged on a door and a door frame, when the door is closed or opened, the actuating element is inserted or pulled out to drive the cam to rotate, the switching rod is contacted with the cam, the cam rotates to move up and down, force is transmitted to the transmission rod, the transmission rod is connected with the movable contact frame in a buckling mode, the force is transmitted to the supporting spring, the elastic force of the supporting spring is counteracted, and the contact is connected or disconnected.

The foregoing shows and describes the general principles, essential features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A high-protection safety switch comprises a switch body and an execution element, and is characterized in that: the switch body at least comprises a dustproof plug (1), an upper cover (2), a cam (3), a sliding block (4), an auxiliary spring (5), a fixed block (6), a rolling shaft (7), a switching rod (8), a transmission rod (9), a rubber sleeve (10), a pressing ring (11), a shell (12), a movable contact component (13), a supporting spring (14), a cover plate (15) and a waterproof pad (16), wherein the cam (3) is assembled on the fixed block (6) through the rolling shaft (7), the sliding block (4) is respectively sleeved on the left side and the right side of the fixed block (6), the auxiliary spring (5) is respectively abutted in corresponding circular grooves of the sliding block (4), the supporting spring (14) is sleeved in a tail hole of the movable contact component (13) and is integrally installed on one side of the shell (12), the cover plate (15) with the waterproof pad (16) is installed on the other side of the shell (12) through a fastening screw (17), rubber sleeve (10) cover is at the inslot that corresponds of transfer line (9), and the whole assembly is downthehole in movable contact subassembly (13) upper end, clamping ring (11) are pressed the lower flange of rubber sleeve (10) in casing (12) corresponds the annular, switching pole (8) lower extreme cylinder is placed and is corresponded downthehole in transfer line (9) upper end, fixed block (6) lower groove corresponds switching pole (8) and assembles on casing (12), upper cover (2) correspond the assembly with set screw (18) locking on casing (12), and upper cover (2) top is equipped with dust plug (1).

2. A high protection safety switch according to claim 1, wherein: the two sliding blocks (4) are arranged on the left side and the right side of the fixed block (6) in a mirror symmetry mode, and the sliding blocks (4) are assembled on shafts on the left side of the fixed block (6) through center holes respectively and are matched with sliding grooves in the fixed block (6) through lugs at the lower ends of the sliding blocks (4) to only do one-way reciprocating motion.

3. A high protection safety switch according to claim 1, wherein: the transmission rod (9) is assembled in a diamond hole of the shell (12), an upper hole of the rubber sleeve (10) is clamped in an annular groove of the transmission rod (9) by means of elasticity of rubber, a flange at the lower end of the rubber sleeve (10) is assembled in the annular groove of the shell (12), and the lower end of the rubber sleeve (10) is embedded into the shell (12) through interference of the pressing ring (11).

4. A high protection safety switch according to claim 1, wherein: the transmission rod (9) is 7-shaped, and the transmission rod (9) is connected with the cam (3) through a switching rod (8).

5. The high-protection safety switch according to claim 4, wherein: the cam (3) is irregular, is provided with an executing element contact bulge (31) in the horizontal direction and the vertical direction, and is provided with a switching rod butt joint groove (32).

6. A high protection safety switch according to claim 5, characterized in that: the side surface and the right upper surface of the upper cover (2) are respectively provided with an actuating element insertion opening (20).