CN215299149U

CN215299149U - High-strength electromagnetic switch

Info

Publication number: CN215299149U
Application number: CN202121406983.0U
Authority: CN
Inventors: 张庆林; 高玉龙
Original assignee: Beijing Chongdian Electric Ltd corp
Current assignee: Beijing Chongdian Electric Ltd corp
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-12-24
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses a high strength electromagnetic switch belongs to electromagnetic switch technical field, and its technical scheme main points are including the shell, fixedly connected with inner shell in the shell, be provided with drive assembly in the inner shell, be provided with the chucking subassembly in the shell, the chucking subassembly include with inner shell outer wall articulated vertical kelly, be connected with the drive kelly in drive assembly's top and to keeping away from drive assembly pivoted clamp plate, the one end and the shell of clamp plate are articulated, be provided with the contact assembly who contacts with the gate handle in the shell, the kelly is kept away from drive assembly's lateral wall and is connected with the contact assembly, the inner shell outside is provided with the contact assembly who is used for the direct contact gate handle and with the effect of the chucking subassembly of chucking gate handle.

Description

High-strength electromagnetic switch

Technical Field

The utility model belongs to the technical field of the electromagnetic switch and specifically relates to a high strength electromagnetic switch is related to.

Background

The electromagnetic switch is a switch device controlled by electromagnetic, and the electromagnetic switch has wide application in various industries and is most commonly used in the industrial field.

As shown in fig. 1, a common electromagnetic switch includes a housing 1, a driving assembly 3 and an ejection rod 51, the driving assembly 3 includes a fixed iron pipe 31, a movable iron core 32, a coil 33 and a return spring 34 are formed, the fixed iron pipe 31 is vertically disposed in the housing 1, the bottom of the fixed iron pipe 31 is fixedly connected with the inner wall of the housing 1, the fixed iron pipe 31 is sleeved on the coil 33 and is fixedly connected with the coil 33, the movable iron core 32 is used in cooperation with the fixed iron pipe 31, the return spring 34 is vertically disposed in the fixed iron pipe 31, one end of the return spring 34 is fixed with the bottom surface of the fixed iron pipe 31, the other end of the return spring 34 is fixed with the movable iron core 32, one end of the return spring 34 far away from the movable iron core 32 is fixedly connected with the ejection rod 51. When the electric switch is used, the gate handle presses the ejection rod 51 downwards during power connection, so that the movable iron core 32 enters the fixed iron pipe 31, the coil 33 is electrified to generate magnetic force, and the movable iron core 32 is adsorbed to be fixed in the fixed iron pipe 31; when the power is cut off, the coil 33 loses the electromagnetic attraction, the movable iron core 32 is popped out of the fixed iron pipe 31 by the elastic force of the return spring 34, and the popping rod 51 is driven to push the gate handle, so that the power of the gate is cut off.

In view of the above-mentioned related technologies, the inventor believes that the electromagnetic attraction force generated by the existing electromagnetic switch is small, and the electromagnetic switch cannot clamp the gate handle only by means of the electromagnetic attraction force, so that the defect that the electromagnetic switch has a poor clamping effect on the gate handle of the device exists.

SUMMERY OF THE UTILITY MODEL

In order to improve the defect that the gate handle chucking effect of electromagnetic switch to equipment is not good, the utility model provides a high strength electromagnetic switch.

The utility model provides a pair of high strength electromagnetic switch adopts following technical scheme:

the utility model provides a high strength electromagnetic switch, includes the shell, fixedly connected with inner shell in the shell is provided with drive assembly in, is provided with the chucking subassembly in the shell, and the chucking subassembly includes with inner shell outer wall articulated vertical kelly, is connected with the drive kelly in drive assembly's top and to keeping away from drive assembly pivoted clamp plate, and the one end and the shell of clamp plate are articulated, are provided with the contact assembly with the contact of gate handle contact in the shell, and the lateral wall that drive assembly was kept away from to the kelly is connected with contact assembly.

By adopting the technical scheme, when the power is not supplied, the clamping rod is far away from the contact assembly, after the driving assembly is supplied with power, the driving assembly generates driving force, the driving assembly drives the pressing plate to move downwards, the pressing plate drives the clamping rod to rotate towards the direction far away from the driving assembly, the clamping rod gradually approaches the contact assembly until the clamping assembly is pressed, and at the moment, the gate is in a working state; after the driving assembly is powered off, the driving force of the driving assembly on the pressing plate disappears, the clamping assembly loses the clamping force on the contact assembly, the contact assembly resets, the contact assembly pushes the gate handle, and the gate is powered off; when the driving assembly directly drives the gate handle, the driving assembly needs to push the gate handle for a longer distance to realize gate power-off, so that the gate power-off time has certain delay and the sensitivity is not high, and the driving assembly is driven by electromagnetic force, so that a longer distance can be moved by a larger driving force, and the increase of the driving force of the driving assembly is difficult to realize; and drive assembly, chucking subassembly and contact assembly cooperation are used, and drive assembly drive chucking subassembly chucking contact assembly, and sensitivity is higher, and is better to the locking effect of gate handle.

Preferably, a first clamping block is fixed at the top of the clamping rod, the wall surface of the first clamping block, which is close to the pressing plate, is inclined downwards in the vertical direction, and the first clamping block is matched with the pressing plate for use.

By adopting the technical scheme, the driving assembly drives the pressing plate to rotate downwards when moving downwards, and the pressing plate moves along the inclined wall surface of the first clamping block until the pressing plate abuts against the bottom of the inclined wall surface of the first clamping block; the pressing plate is matched with the first clamping block for use, and the driving force of the driving assembly is transmitted to the clamping assembly; the arrangement of the inclined wall surface of the first clamping block facilitates the pressing plate to press the first clamping block downwards so as to enable the clamping rod to rotate towards the direction far away from the driving assembly.

Preferably, a second clamping block extends from one side of the clamping rod, which is far away from the driving assembly, and the second clamping block is used for limiting the contact assembly.

Through adopting above-mentioned technical scheme, when not circular telegram, contact assembly is kept away from to the second fixture block on the kelly, and drive assembly drives the kelly after circular telegram, and the second fixture block on the kelly is close to contact assembly gradually until with the contact assembly chucking, and the kelly is as the structure between drive assembly and the contact assembly, can turn into drive assembly's drive power to contact assembly's chucking power.

Preferably, the inner wall of the outer shell is fixedly connected with a clamping table, one side, far away from the inner wall of the outer shell, of the clamping table is fixed with the outer wall of the inner shell, the clamping rod penetrates through the clamping table, and the bottom of the clamping rod is hinged with the outer wall of the inner shell; the clamping table is rotatably connected with a rotating shaft, the rotating shaft is fixedly connected with a torsion spring, and one end, far away from the rotating shaft, of the torsion spring is fixedly connected with the clamping rod.

By adopting the technical scheme, when the driving assembly is powered off, the pressing plate resets to release the force applied to the first clamping block, the clamping rod resets under the action of the torsion spring to release the clamping connection of the second clamping block to the contact assembly, and the contact assembly resets and pushes the gate handle; the setting of torsional spring and axis of rotation makes the kelly reset to just can remove and remove the restriction to contact assembly, and the torsional spring leans on self compression and tensile to the kelly effect, need not manual regulation.

Preferably, the contact assembly includes ejection rod, spliced pole and positioning spring, and the vertical setting of positioning spring, positioning spring one end fixed connection in the shell bottom, and positioning spring other end fixed connection is in the spliced pole bottom, the vertical setting of spliced pole, spliced pole and ejection rod fixed connection, and the spliced pole diameter is greater than the ejection rod diameter, and the spliced pole forms the joint bank with ejection rod junction.

By adopting the technical scheme, the ejection rod is directly contacted with the gate handle, when the device is used, the gate handle is pulled down, the gate is closed, the ejection rod is pressed down by the gate handle, the ejection rod drives the connecting column to move downwards, so that the positioning spring is compressed, and the ejection rod ejects to push the gate handle when the positioning spring extends; the ejection rod is used for directly contacting a gate handle, and the clamping ridge at the joint of the connecting column and the ejection rod is convenient for clamping the second clamping block, so that the contact assembly is limited; the contact assembly penetrates through the clamping table, and when the contact assembly moves, the clamping table has a guiding effect on the contact assembly; the positioning spring is used for controlling the rebound of the ejection rod, so that the gate is powered off.

Preferably, a positioning table extends outwards from a position, close to the inner wall of the shell, of the ejection rod, and the positioning table abuts against the inner wall of the shell.

By adopting the technical scheme, when the clamping assembly releases the clamping action on the contact assembly, the ejection rod ejects and pushes the gate handle until the positioning table is abutted against the inner wall of the shell; if the extension length of the ejection rod is too long, the gate handle cannot be accurately contacted with the top surface of the ejection rod when being pressed down, and the ejection rod is accurately restored to the initial position by the arrangement of the positioning table.

Preferably, drive assembly includes reset spring, movable iron core, fixed iron pipe and coil, and the vertical setting of fixed iron pipe, fixed iron pipe bottom surface and inner shell bottom surface fixed connection, and reset spring sets up in fixed iron pipe, and movable iron core uses with fixed iron pipe cooperation, and the coil winding is in the movable iron core and the fixed iron outside of tubes.

By adopting the technical scheme, magnetic force is generated when the coil is electrified, the movable iron core enters the fixed iron pipe, so that the clamping assembly is driven to clamp the contact assembly, the movement of the contact assembly is limited, and the contact assembly cannot apply force to the gate handle; when the coil is powered off, the movable iron core resets to release the clamping connection of the contact assembly, and the contact assembly pushes the gate handle to enable the gate to be powered off.

Preferably, the fixed iron pipe orifice is in an inverted circular truncated cone shape, and the movable iron core is fixedly connected with a lug which is matched with the fixed iron pipe orifice for use.

By adopting the technical scheme, the movable iron core lug is matched with the orifice of the fixed iron pipe for use to play a role in assisting the positioning of the movable iron core, so that the problem that the movable iron core cannot accurately enter the fixed iron pipe because the movable iron core is not easy to align with the hole of the fixed iron pipe is solved; secondly, after fixed iron core got into fixed iron pipe, the lug butt of movable iron core was in fixed iron pipe drill way, and the lug of movable iron core is great with fixed iron pipe area of contact, makes movable iron core set up more steadily in fixed iron pipe, and the difficult position rupture of following with fixed iron pipe butt of movable iron core.

To sum up, the utility model discloses following beneficial effect has:

1. the driving assembly, the clamping assembly and the contact assembly are matched for use, so that the time consumed by power failure of the gate is less, the sensitivity is higher, and the locking effect on a gate handle is better;

2. the pressing plate is used with the slope wall cooperation of first fixture block and can transmit drive power transmission of drive assembly for the chucking subassembly to the kelly drives the second fixture block and rotates and make the joint of second fixture block on the joint bank, makes drive assembly, chucking subassembly and contact assembly function integration.

Drawings

Fig. 1 is a schematic structural view of the related art;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a schematic sectional structure view intended to show the drive assembly.

Description of reference numerals:

1. a housing; 11. a second electrifying tank; 12. a rod outlet hole; 2. an inner shell; 21. a first energization slot; 22. a reinforcing table; 3. a drive assembly; 31. fixing the iron pipe; 32. a movable iron core; 321. a stepped shaft; 322. A telescopic rod; 33. a coil; 34. a return spring; 4. a clamping assembly; 41. a clamping rod; 411. a first clamping block; 412. a second fixture block; 42. a rotating shaft; 43. a torsion spring; 5. a contact assembly; 51. ejecting the rod; 511. a positioning table; 52. connecting columns; 521. clamping the ridge; 53. a positioning spring; 6. a clamping table; 7. pressing a plate; 71. a strip-shaped groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a high strength electromagnetic switch, as shown in fig. 2, includes shell 1, is provided with drive assembly 3, chucking subassembly 4 and contact assembly 5 in shell 1 is inside, drive assembly 3 is vertical to be set up and is close to shell 1 inner wall, contact assembly 5 is used for contacting the gate handle, contact assembly 5 sets up the one side of keeping away from shell 1 inner wall at drive assembly 3, drive assembly 3 is connected with shell 1, chucking subassembly 4 sets up and is used for chucking contact assembly 5 between drive assembly 3 and contact assembly 5. In use, the driving component 3 drives the clamping component 4 to move, so that the clamping component 4 clamps or releases the contact component 5, and the brake door handle is controlled to be closed or opened.

As shown in fig. 2 and 3, the outer shell 1 is a hollow cuboid structure, an inner shell 2 is arranged inside the outer shell 1, and two side walls of the inner shell 2 in the length direction are fixedly connected to the inner wall of the outer shell 1; the driving assembly 3 is arranged inside the inner shell 2, the driving assembly 3 comprises a fixed iron pipe 31, a movable iron core 32, a coil 33 and a return spring 34, the fixed iron pipe 31 is vertically arranged, the bottom surface of the fixed iron pipe 31 is fixedly connected to the bottom surface of the inner shell 2, and an inverted frustum-shaped orifice coaxial with the fixed iron pipe 31 is formed in the fixed iron pipe 31; the reset spring 34 is vertically arranged inside the fixed iron pipe 31, one end of the reset spring 34 is fixed on the bottom surface of the inner shell 2, and the other end of the reset spring 34 is fixedly connected with the movable iron core 32.

As shown in fig. 3, the movable iron core 32 is vertically arranged, the movable iron core 32 includes a third-stage stepped shaft 321 and an expansion link 322, the diameters of the third-stage stepped shaft 321 are sequentially increased from top to bottom, a projection matched with the orifice of the fixed iron pipe 31 is downwardly extended from the bottom of the third-stage stepped shaft 321, the bottom surface of the third-stage stepped shaft 321 is fixedly connected with the top surface of the expansion link 322, and the expansion link 322 is matched with the fixed iron pipe 31 for use; the return spring 34 is sleeved outside the telescopic rod 322, and one end of the return spring 34 far away from the bottom surface of the fixed iron pipe 31 is fixedly connected with the telescopic rod 322; reinforcing platform 22 is provided with in inner shell 2 inside, and reinforcing platform 22 top surface and inner shell 2 top surface fixed connection run through on 2 top surfaces of inner shell and offer with the hole that reinforcing platform 22 cooperation was used, run through on reinforcing platform 22 and offer with the hole that the jackshaft cooperation of tertiary step shaft 321 was used, tertiary step shaft 321 and reinforcing platform 22 sliding connection.

As shown in fig. 2 and 3, the coil 33 is vertically wound around the outer sides of the movable iron core 32 and the fixed iron pipe 31, the first energization grooves 21 are formed in the positions, close to the bottom surface, of the side walls of the inner shell 2, the number of the first energization grooves 21 is two, the two first energization grooves 21 are symmetrically formed in the side walls at the two ends of the inner shell 2 in the length direction, and the second energization grooves 11 are formed in the bottom surface of the outer shell 1.

When the three-stage ladder shaft is used, a lead passes through the second electrifying groove 11 and the first electrifying groove 21 to be respectively connected with two ends of the coil 33, the coil 33 is electrified to generate magnetic force, the movable iron core 32 is stressed, the telescopic rod 322 moves downwards to compress the return spring 34, and the three-stage ladder shaft 321 is abutted to the orifice of the fixed iron pipe 31; after the coil 33 is de-energized, the return spring 34 rebounds to return the movable core 32.

As shown in fig. 2, a pressing plate 7 is connected to the top of the movable iron core 32, one end of the pressing plate 7 in the length direction is hinged to the inner wall of the housing 1, the pressing plate 7 comprises two long rods arranged in parallel horizontally, a plurality of cross rods are fixedly connected between the two long rods, the cross rods are parallel to each other and the cross rods and the long rods are arranged vertically; the movable iron core 32 is fixedly connected with a screw, a strip-shaped groove 71 matched with the screw is formed in the position, corresponding to the movable iron core 32, of the long rod, and the screw is connected with the pressing plate 7 in a sliding mode; the end of the pressure plate 7 far away from the inner wall of the shell 1 is matched with the clamping component 4 for use.

As shown in fig. 2, the clamping assembly 4 includes a clamping rod 41, a rotating shaft 42 and a torsion spring 43, a clamping table 6 is disposed between the clamping rod 41 and the inner wall of the outer shell 1, the clamping table 6 is horizontally disposed, one side wall of the clamping table 6 in the horizontal direction is fixedly connected to the inner wall of the outer shell 1, and the side wall of the clamping table 6 far away from the inner wall of the outer shell 1 is fixedly connected to the outer wall of the inner shell 2; the clamping table 6 is provided with a hole which is matched with the clamping rod 41 for use, the cross section of the hole is larger than that of the clamping rod 41, the clamping rod 41 vertically penetrates through the clamping table 6, and the bottom of the clamping rod 41 is hinged to the outer wall of the inner shell 2.

As shown in fig. 2, the rotating shaft 42 is arranged right above the hinge shaft, and the rotating shaft 42 is rotatably connected with the clamping table 6; the torsion spring 43 is fixedly connected to the wall surface of the rotating shaft 42 in the length direction, and one end of the torsion spring 43, which is far away from the rotating shaft 42, is fixedly connected with the top of the clamping rod 41; a first fixture block 411 is integrally formed at the top of the fixture rod 41, and the first fixture block 411 is arranged close to the wall surface of the pressing plate 7 and is inclined downwards in the vertical direction; a second latch 412 is integrally formed on one side of the latch rod 41 away from the driving assembly 3, and the second latch 412 is disposed near the latching platform 6.

As shown in fig. 3, the contact assembly 5 includes an ejection rod 51, a connection column 52 and a positioning spring 53, the positioning spring 53 is vertically disposed, one end of the positioning spring 53 is fixedly connected with the bottom surface of the housing 1, and the other end of the positioning spring 53 is fixedly connected with the connection column 52; the connecting column 52 vertically penetrates through the clamping table 6 and is in sliding connection with the clamping table 6, the top surface of the connecting column 52 and the ejection rod 51 are integrally formed, and the diameter of the connecting column 52 is larger than that of the ejection rod 51; a clamping ridge 521 is formed at the joint of the connecting column 52 and the ejection rod 51, and the second fixture block 412 is abutted against the contact assembly 5 at the clamping ridge 521 when in use; the position that shell 1 corresponds with ejection pole 51 has been seted up out pole hole 12, and ejection pole 51 uses with the cooperation of play pole hole 12, and ejection pole 51 and shell 1 sliding connection, ejection pole 51 top and gate handle butt outwards extend the location platform 511 on the position that ejection pole 51 is close to shell 1 inner wall, location platform 511 and shell 1 inner wall butt.

The utility model discloses a use as follows:

when the gate is powered on, the gate handle presses the ejection rod 51 downwards, so that the ejection rod 51 enters the shell 1, the positioning spring 53 is in a compression state, the coil 33 is powered on again, the coil 33 is powered on to generate magnetic force, the movable iron core 32 is adsorbed, the telescopic rod 322 moves downwards to compress the reset spring 34, the movable iron core 32 pulls the pressing plate 7, the pressing plate 7 rotates downwards around the movable iron core 32, the cross bar of the pressing plate 7 close to the first fixture block 411 moves downwards along the inclined wall surface of the first fixture block 411, the driving fixture rod 41 rotates towards the direction far away from the pressing plate 7 until the second fixture block 412 abuts against the clamping ridge 521, at the moment, the pressing plate 7 abuts against the first fixture block 411, and resilience of the ejection rod 51 is limited.

When the outage, reset spring resumes, makes movable core pop out, and the clamp plate resets, removes the butt to the kelly, and the kelly resets under the effect of torsional spring, removes the joint to the ejection rod, and the ejection rod promotes the gate handle under positioning spring's effect.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A high-strength electromagnetic switch comprising a housing (1), characterized in that: fixedly connected with inner shell (2) in shell (1), be provided with drive assembly (3) in inner shell (2), be provided with chucking subassembly (4) in shell (1), chucking subassembly (4) include with inner shell (2) outer wall articulated vertical kelly (41), be connected with drive kelly (41) in the top of drive assembly (3) and to keeping away from drive assembly (3) pivoted clamp plate (7), the one end and the shell (1) of clamp plate (7) are articulated, be provided with in shell (1) with contact assembly (5) of gate handle contact, the lateral wall that drive assembly (3) were kept away from in kelly (41) is connected with contact assembly (5).

2. A high intensity electromagnetic switch as claimed in claim 1, wherein: a first clamping block (411) is fixed to the top of the clamping rod (41), the wall surface, close to the pressing plate (7), of the first clamping block (411) is arranged in a downward inclining mode in the vertical direction, and the first clamping block (411) is matched with the pressing plate (7) for use.

3. A high intensity electromagnetic switch as claimed in claim 1, wherein: one side of the clamping rod (41) far away from the driving assembly (3) extends to form a second clamping block (412), and the second clamping block (412) is used for limiting the contact assembly (5).

4. A high intensity electromagnetic switch as claimed in claim 1, wherein: the inner wall of the outer shell (1) is fixedly connected with a clamping table (6), one side, far away from the inner wall of the outer shell (1), of the clamping table (6) is fixed with the outer wall of the inner shell (2), a clamping rod (41) penetrates through the clamping table (6), and the bottom of the clamping rod (41) is hinged with the outer wall of the inner shell (2); the clamping table (6) is rotatably connected with a rotating shaft (42), the rotating shaft (42) is fixedly connected with a torsion spring (43), and one end, far away from the rotating shaft (42), of the torsion spring (43) is fixedly connected with the clamping rod (41).

5. A high intensity electromagnetic switch as claimed in claim 4, wherein: contact module (5) are including popping out pole (51), spliced pole (52) and positioning spring (53), positioning spring (53) vertical setting, positioning spring (53) one end fixed connection is in shell (1) bottom, positioning spring (53) other end fixed connection is in spliced pole (52) bottom, spliced pole (52) vertical setting, spliced pole (52) and pop out pole (51) fixed connection, spliced pole (52) diameter is greater than pop out pole (51) diameter, spliced pole (52) and pop out pole (51) junction form joint bank (521).

6. A high intensity electromagnetic switch as claimed in claim 5, wherein: a positioning table (511) extends outwards from the position, close to the inner wall of the shell (1), of the ejection rod (51), and the positioning table (511) is abutted against the inner wall of the shell (1).

7. A high intensity electromagnetic switch as claimed in claim 1, wherein: drive assembly (3) include reset spring (34), activity iron core (32), fixed iron pipe (31) and coil (33), and vertical setting in fixed iron pipe (31), fixed iron pipe (31) bottom surface and inner shell (2) bottom surface fixed connection, reset spring (34) set up in fixed iron pipe (31), and activity iron core (32) uses with fixed iron pipe (31) cooperation, and coil (33) winding is in activity iron core (32) and fixed iron pipe (31) outside.

8. A high intensity electromagnetic switch as claimed in claim 7, wherein: the fixed iron pipe (31) orifice is in an inverted frustum shape, and the movable iron core (32) is fixedly connected with a lug which is matched with the fixed iron pipe (31) orifice for use.