CN220474536U - Push type electromagnetic switch - Google Patents

Abstract

The utility model provides a push type electromagnetic switch, includes panel face lid, and hollow button and the first spring of group setting, is equipped with two button grooves on the up end of panel face lid, hollow button with be equipped with two sets of first spring, the connection that hollow button slided from top to bottom in corresponding button inslot, first spring spacing cooperation is inboard in the rampart of corresponding hollow button, the panel assembly still includes the protection casing, and connect the button clamp plate on corresponding hollow button, protection casing close fit is equipped with the cover portion of establishing of parcel corresponding hollow button on panel face lid up end, the button clamp plate is silica gel material and inboard surface on the symmetry be equipped with first card foot, first card foot pass cover portion of establishing and with corresponding first draw-in groove looks joint on the hollow button, and the inboard surface of button clamp plate after the joint is hugged closely in cover portion of establishing. The panel assembly provided by the utility model has the advantages of being capable of taking into account the integral protection and ensuring the pressing effect, reasonable in structure and good in using effect.

Description

Push type electromagnetic switch

Technical Field

The utility model relates to the technical field of switches, in particular to a push type electromagnetic switch.

Background

The electromagnetic switch is a switch controlled by an electromagnet, when the electromagnet coil is electrified, electromagnetic attraction force is generated, and the movable iron core pushes or pulls the switch contact to be closed, so that a controlled circuit is connected. At present, the buttons in the panel assembly cannot be protected and the pressing efficiency is guaranteed at the same time, and the overall structure is unreasonable.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a push type electromagnetic switch so as to solve the problem that a panel assembly of the electromagnetic switch in the prior art cannot achieve the overall protection and ensure the push effect.

The technical scheme includes that the push type electromagnetic switch comprises a panel face cover, hollow buttons and first springs, wherein the hollow buttons and the first springs are arranged in groups, two button grooves are formed in the upper end face of the panel face cover, through holes are formed in the bottoms of the button grooves, the hollow buttons and the first springs are arranged in two groups, the hollow buttons are connected in the corresponding button grooves in a sliding mode and distributed on the panel face cover in a high-low mode, sliding push rods which are at least partially located in the corresponding through holes are arranged in the center of the inner side of the annular wall of the hollow buttons, the first springs are in limiting fit with the inner side of the annular wall of the corresponding hollow buttons, the panel assembly further comprises a protective cover and button pressing plates which are connected to the corresponding hollow buttons, the protective cover is tightly matched with the upper end face of the panel face cover and is made of silica gel, first clamping pins are symmetrically arranged on the inner side surface of the button pressing plates, and pass through the cover pressing plates and are in clamping connection with the corresponding hollow pressing plates, and the inner side pressing plates are in tight fit with the corresponding clamping grooves.

The technical scheme has the advantages that: through set up the protection casing that has the cover portion of establishing on the panel face to make it realize the inseparable parcel of face lid upper end and two hollow buttons, thereby avoid steam to invade inside the switch from the button groove department on the panel face lid, through the cooperation of sliding push rod and through hole, make the hollow button realize that control circuit break-make function removes simultaneously also more stable, through the setting of first spring, make the hollow button realize automatic reset function and have certain shock-proof capacity, through setting up the button clamp plate with the hollow button looks joint of protection casing inside, and the head of button clamp plate is hugged closely the protection casing outer wall surface setting, this structure is under the prerequisite of guaranteeing the protection effect, make operating personnel's pressing force accessible button clamp plate directly act on the hollow button, compared with the mode that drives the hollow button through the protection casing in the prior art, the effect of adopting the button clamp plate of silica gel material is better, and can not appear taking place the phenomenon that the material hardens when being infected with oily material, make the protection effect of panel assembly good, hollow button removes the effect simultaneously, therefore the panel assembly of this structure can whole protection effect and guarantee to press.

Further, the panel assembly further comprises a gland pressed by the protective cover, an opening is formed in the upper end face of the gland, the opening corresponds to the button groove, a circle of skirt edge is formed by extending the edge of the lower end face of the gland, a first limiting block is arranged on the inner wall surface of the skirt edge, and the first limiting block is matched with the lower end face of the panel cover.

The technical scheme has the advantages that: through the cooperation of the lower terminal surface of first stopper and panel face lid on the skirt, the gland is firm with being connected of panel face lid, has stably realized closely compressing tightly the protection casing, and overall structure is simple, reasonable, and the installation is also convenient.

Further, two second clamping legs are symmetrically arranged on the bottom wall of the hollow button, second clamping grooves matched with the second clamping legs are formed in the corresponding side wall surfaces of the button groove, the lower ends of the second clamping grooves penetrate through the panel surface cover, supporting columns are further arranged on the side walls of the button groove, located on the two sides of the second clamping grooves, of the supporting columns, and the outer wall surfaces of the hollow button are in supporting fit.

The technical scheme has the advantages that: the hollow button realizes position limitation and vertical sliding through the cooperation of second card foot and second draw-in groove, and the cooperation mode is simple, and simple to operate also supports the setting of prop for the hollow button is difficult for taking place to rock the jamming in the vertical sliding process, and the action of hollow button is smooth, excellent in use effect.

Further, the sliding push rod is of a hollow structure with two through ends, a positioning inserting rod is further arranged at the center of the inner side surface of the button pressing plate, and the lower end part of the positioning inserting rod is inserted into the hollow structure of the sliding push rod.

The technical scheme has the advantages that: the positioning inserted rod on the button pressing plate after being installed in place can be inserted into the hollow structure of the sliding push rod, so that the button pressing plate can drive the hollow buttons to synchronously act better, and the structure is more reasonable.

Further, the electromagnetic switch further comprises a base, a contact assembly, an electromagnetic assembly and a suction piece, wherein two chambers on the base are all arranged to be of an upper end opening structure, the contact assembly comprises an inner sleeve, a movable contact frame, two movable contact pieces and four static contact pieces, the movable contact frame can slide up and down on the inner sleeve, the movable contact pieces can slide up and down on the movable contact frame, the static contact pieces are clamped on the inner sleeve and are equally divided into two groups, the static contact points of the static contact pieces and the movable contact points of the movable contact pieces are arranged at an upper and lower interval in the height direction, the electromagnetic assembly comprises an armature, an iron core arranged on the armature, a coil framework, a magnetic dividing ring and a group of power supply pins, the power supply pins are electrically connected with the static contact pieces, the suction piece is rotationally connected with the base, and the suction piece can enable the two ends of the movable contact pieces to be in contact with or separated from the static contact pieces on two sides.

The technical scheme has the advantages that: the suction sheet swings clockwise along with the pressing of the low-level hollow button, the movable contact frame drives the movable contact sheet to move upwards under the action of the suction sheet, after the movable contact sheet enables the static contact sheet to be in contact and conduction, the low-level hollow button is loosened, the low-level hollow button can automatically reset, but because the magnetic field around the iron core realizes automatic suction of one end of the suction sheet, the other end of the suction sheet can also keep the position of the movable contact frame unchanged, a circuit is still in a conducting state, when the circuit is required to be disconnected, only the high-level hollow button is needed to be pressed down, the position of the movable contact frame moves downwards, the contact between the movable contact sheet and the static contact sheet is disconnected, the magnetic field around the iron core weakens or dissipates, the suction effect is not formed on one end of the suction sheet, the circuit can be disconnected, and the movable contact sheet and the static contact sheet are both set to be two groups, so that synchronous control of two circuits can be realized, the number of used switches is reduced, and the two chambers are all in an upper end opening structure, dust is not easy to enter the inside the base in comparison with a mode of mounting through the bottom, the movable contact frame and the movable contact sheet are integrated into a modularized base, the electromagnetic assembly is realized, the electromagnetic assembly is more efficient, and the assembly is realized.

Furthermore, a pair of side wall surfaces of the inner sleeve are respectively provided with a guide slot, the other pair of side wall surfaces of the inner sleeve are respectively provided with a second limiting block, a pair of side wall surfaces of the cavity are respectively provided with a guide inserting column, the other pair of side wall surfaces of the cavity are respectively provided with a first limiting clamping groove, the guide slots are matched with the guide inserting columns, and the second limiting blocks are matched with the first limiting clamping grooves.

The technical scheme has the advantages that: the inner sleeve is matched with the guide slot and the guide inserting column, and matched with the second limiting block and the first limiting clamping groove, so that the purpose of being stably and rapidly installed on the base is achieved, and the structure design is reasonable.

Further, the contact assembly further comprises a second spring and a third spring, wherein the second spring is provided with two springs and is respectively arranged at the lower end of the movable contact piece, the third spring is provided with two springs and is symmetrically arranged at the upper end of the movable contact frame, and the lower end face of the panel face cover is further provided with a connecting column matched with the corresponding third spring.

The technical scheme has the advantages that: through setting up the second spring for movable contact spring mounting is on movable contact frame, after movable contact and static contact make contact, movable contact frame still can continue to move up until maximum stroke department, under the effect of second spring, movable contact keeps contradicting with the static contact and also can not take place great deformation simultaneously, the circular telegram safety has been guaranteed, the setting of third spring, make movable contact frame can make the third spring compress and store elastic potential energy when moving up, after movable contact and static contact are cut apart the contact, movable contact frame can be quick drive movable contact reset, the setting of spliced pole has restricted the mounted position of third spring, the action is more stable.

Further, the inner side of the edge of the lower end face of the panel face cover is provided with a panel bottom shell, the outer wall surface of the panel bottom shell is provided with a plurality of concave surfaces with the same shape, third limiting blocks are arranged in the concave surfaces, the upper end of the base is provided with lugs embedded with the corresponding concave surfaces, and the lugs are provided with second limiting clamping grooves buckled with the third limiting blocks.

The technical scheme has the advantages that: the base is fit through the cooperation of the concave surface on lug and the panel drain pan, helps base and the quick location cooperation of panel drain pan, through the cooperation of third stopper and the spacing draw-in groove of second for the product is difficult for separating in the use, and overall structure is compact, also difficult dismantlement.

Further, the lower end face of the panel face cover is also provided with an anti-disassembly column matched with the lug.

The technical scheme has the advantages that: the lug on the base after the installation in place can cartridge to the inboard of preventing tearing open the post for the lug can be better gomphosis in the concave surface, structural design is reasonable.

Drawings

FIG. 1 is a cross-sectional view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a panel cover structure according to the present utility model;

FIG. 3 is another view of the panel cover structure of the present utility model;

FIG. 4 is a schematic view of the hollow button structure of the present utility model;

FIG. 5 is a schematic view of a push button press plate according to the present utility model;

fig. 6 is a schematic view of the waterproof cover structure of the present utility model;

FIG. 7 is a schematic diagram of a gland configuration of the present utility model;

fig. 8 is a schematic view of the contact assembly and electromagnetic assembly of the present utility model;

fig. 9 is a schematic view of a base structure of the present utility model.

In the figure: the panel comprises a 1-panel surface cover, a 2-hollow button, a 3-first spring, a 4-button slot, a 5-through hole, a 6-sliding push rod, a 7-protective cover, an 8-button pressing plate, a 9-protective cover part, a 10-first clamping leg, a 11-first clamping slot, a 12-pressing cover, a 13-skirt, a 14-first limiting block, a 15-second clamping leg, a 16-second clamping slot, a 17-supporting column, a 18-positioning inserting rod, a 19-base, a 20-absorbing sheet, a 21-cavity, a 22-inner sleeve, a 23-movable contact frame, a 24-movable contact sheet, a 25-static contact sheet, a 26-armature, a 27-core, a 28-coil framework, a 29-split magnetic ring, a 30-power supply pin, a 31-guide slot, a 32-second limiting block, a 33-guide inserting column, a 34-first limiting clamping slot, a 35-second spring, a 36-third spring, a 37-connecting column, a 38-bottom shell, a 39-concave surface, a 40-third limiting block, a 41-lug, a 42-second limiting slot and a 43-preventing column.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model and/or the technical solutions in the prior art, the following description will explain specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort. The term "azimuth" refers to a relative positional relationship between the members, not to an absolute positional relationship.

Referring to fig. 1 to 9, a push type electromagnetic switch includes a panel cover 1, and a hollow button 2 and a first spring 3 arranged in groups, wherein two button slots 4 are provided on an upper end surface of the panel cover 1, through holes 5 are provided at bottoms of the button slots 4, the hollow button 2 and the first spring 3 are provided with two groups, the hollow button 2 slides up and down and is connected in the corresponding button slot 4 and is distributed on the panel cover 1, more specifically, the low hollow button 2 is a conducting button, the high hollow button 2 is a disconnecting button, sliding push rods 6 at least partially located in the corresponding through holes 5 are provided at centers of inner sides of annular walls of the hollow button 2, the hollow button 2 realizes the on-off function of a control circuit by matching of the sliding push rods 6 and the through holes 5, the first spring 3 is in limited fit with inner sides of annular walls of the corresponding hollow button 2, more specifically, a protruding structure is provided on a bottom surface of the button slot 4, one end of the first spring 3 is connected to the bottom surface of the button slot 4 through the protruding structure, the button 2 is easy to be pressed down, the button 2 has a stable vibration-proof function in a certain vibration-proof process, and no vibration-proof function is generated.

In this embodiment, the panel components still includes protection casing 7, and connect the button clamp plate 8 on corresponding hollow button 2, protection casing 8 close fit is established portion 9 in the cover of panel face lid 1 up end and be equipped with the cover of parcel corresponding hollow button 2, through set up on panel face lid 1 have cover establish portion 9's protection casing 7, and make it realize the inseparable parcel of panel face lid 1 upper end and two hollow buttons 2, thereby avoid steam from panel face lid 1 on button slot department 4 invade inside the switch, button clamp plate 8 is silica gel material and inboard on the surface symmetry be equipped with first card foot 10, first card foot 10 passes cover establish portion 9 and with hollow button 2 on corresponding first draw-in groove 11 looks joint, and the inboard surface of button clamp plate 8 after the joint is hugged closely in cover establish portion 9, this structure is under the prerequisite of guaranteeing the protective effect, make operating personnel's pressure accessible button clamp plate 8 directly act on hollow button 2, for the mode that the hollow button 2 moved through drive hollow button 7 in the prior art, adopt the effect of silica gel to the button clamp plate 8 to hollow button 2, and the effect of the better button clamp plate 2 of the hollow button clamp plate, and the effect of the phenomenon can not take place to take place simultaneously to take place to protect the effect when the good effect because of low temperature, the whole can protect the material, can protect the effect when the whole can protect the panel components because of the effect is guaranteed to be polluted by the effect.

In this embodiment, the first clamping groove 11 is further provided with an anti-disengagement protrusion, and the anti-disengagement protrusion acts on the side surface of the first clamping leg 10, that is, after the first clamping leg 10 is inserted into the first clamping groove 11, the anti-disengagement protrusion forms a transverse tightening force on the first clamping leg 10, so that the hook portion of the first clamping leg 10 is firmly fixed into the first clamping groove 11.

In this embodiment, the panel assembly further includes a pressing cover 12 that compresses tightly the protection cover 7, an opening is disposed on an upper end face of the pressing cover 12, the opening corresponds to the button groove 4, that is, the hollow button 2 is exposed through the opening, a circle of skirt 13 is formed by extending at an edge of a lower end face of the pressing cover 12, a first limiting block 14 is disposed on an inner wall surface of the skirt 13, the first limiting block 14 is matched with a lower end face of the panel cover 1, during installation, firstly, the cover portion 9 on the protection cover 7 is aligned with the two hollow buttons 2, after the protection cover 7 is wrapped in place, the bottom of the protection cover 7 is attached to the upper end face of the panel cover 1, and then the opening is pressed down to align with the pressing cover 12 of the hollow button 2, so that the first limiting block 14 on the skirt 13 is matched with the lower end face of the panel cover 1, the protection cover 7 can be tightly compressed tightly.

In this embodiment, two second clamping legs 15 are symmetrically arranged on the bottom wall of the hollow button 2, second clamping grooves 16 matched with the second clamping legs 15 are arranged on the corresponding side wall surfaces of the button groove 4, the hollow button 2 is matched with the second clamping grooves 16 through the second clamping legs 15 to achieve position limiting and vertical sliding, the matching mode is simple, when the hollow button 2 is installed, along with the fact that the force of the hollow button 2 is pressed down, the hook portion of the second clamping legs 15 is forced to shrink inwards, when the hollow button 2 moves to the second clamping grooves 16, the second clamping legs 15 reset to form position limiting with the second clamping grooves 16, installation is convenient, the lower ends of the second clamping grooves 16 penetrate through the panel surface cover 1, therefore the first clamping legs 15 are not limited in sliding downwards, supporting columns 17 are further arranged on two sides of the side walls of the button groove 4, the supporting columns 17 are matched with the outer wall surfaces of the hollow button 2 in a supporting mode, shaking clamping stagnation is not easy to occur in the vertical sliding process of the hollow button 2, and the hollow button 2 is good in use effect.

In this embodiment, the sliding push rod 6 is a hollow structure with two through ends, the center of the inner side surface of the button pressing plate 8 is further provided with a positioning inserting rod 18, the lower end of the positioning inserting rod 18 is inserted into the hollow structure of the sliding push rod 6, and the positioning inserting rod 18 on the button pressing plate 8 after being installed in place can be inserted into the hollow structure of the sliding push rod 6, so that the button pressing plate 8 can better drive the hollow button 2 to synchronously act, and the structure is more reasonable.

In this embodiment, the electromagnetic switch further includes a base 19, a contact assembly, an electromagnetic assembly, and a suction plate 20, two chambers 21 on the base 19 are both set to an upper opening structure, that is, the contact assembly and the electromagnetic assembly are both installed on the base 19 from top to bottom, and dust is not easy to enter into the base 19 in comparison with the bottom installation mode, the contact assembly includes an inner sleeve 22, and a movable contact frame 23, two movable contact plates 24, and four stationary contact plates 25 integrally installed on the inner sleeve 22, the movable contact frame 23, the movable contact plates 24, and the stationary contact plates 25 are integrally installed on the base 19 through the inner sleeve 22, thereby realizing the purpose of modular assembly production, forming sliding grooves for matching two movable contact arms of the movable contact frame 23 on the inner sleeve 22, the movable contact frame 23 can slide up and down on the inner sleeve 22 through the cooperation of the movable contact arms and the sliding grooves, and forming travel grooves on the corresponding movable contact arms, the movable contact piece 24 can slide up and down in a travel groove on a movable contact arm on the movable contact frame 23, contact piece mounting grooves are formed on two sides of the movable contact arm on the inner sleeve 22, the static contact piece 25 is divided into two groups and clamped on the inner sleeve 22 through the static contact piece mounting grooves, meanwhile, the static contact of the static contact piece 25 and the movable contact of the movable contact piece 24 are arranged at intervals up and down in the height direction, namely, the movable contact piece 24 and the static contact piece 25 are both arranged into two groups and simultaneously contact or disconnect the movable contact of the movable contact piece 24, thus realizing synchronous control of two circuits, reducing the number of used switches, the electromagnetic assembly comprises an armature 26, a coil framework 28, a magnetic separating ring 29 and a group of power supply pins 30 which are arranged on the armature 26, the coil framework 28, the magnetic separating ring 29 and the group of power supply pins 30 which are electrically connected on the static contact piece 25, the attraction piece 20 is rotationally connected on the base 19, the suction piece 20 can make two ends of the movable contact piece 24 in contact with or separate from the fixed contact pieces 25 on two sides, more specifically, the hollow push button 2 at a lower position is pushed down to enable the sliding push rod 6 to move downwards in the through hole 5 and act on one end of the lower suction piece 20, the suction piece 20 swings clockwise along with the pushing down of the hollow push button 2 at a lower position, the movable contact frame 23 drives the movable contact piece 24 to move upwards under the action of the other end of the suction piece 20, after the movable contact piece 24 makes the fixed contact piece 25 contact and conduct, the hollow push button 2 at a lower position is loosened, the hollow push button 2 at a lower position is automatically reset, but because the magnetic field realizes automatic suction on one end of the suction piece 20, the other end of the suction piece 20 still keeps the position of the movable contact frame 23 unchanged, the circuit is still in a conducting state, when the circuit is required to be disconnected, only the hollow push button 2 at a lower position of the lower position is needed, the movable contact frame 23 is enabled to move downwards, the contact between the movable contact piece 24 and the fixed contact piece 25 is disconnected, the magnetic field around the iron core 27 is weakened or the magnetic field around the iron core 27 is not dissipated, the magnetic core is enabled to form the magnetic ring, the magnetic ring is disconnected, the electromagnetic circuit is effectively disconnected, and the electromagnetic magnetic ring is effectively disconnected, and the magnetic circuit is opened, and the magnetic component is used, and the magnetic core 29 is more safe is used, and the magnetic component is used.

In this embodiment, the pair of side wall surfaces of the inner sleeve 22 are respectively provided with a guide slot 31, the other pair of side wall surfaces of the inner sleeve 22 are respectively provided with a second limiting block 32, the pair of side wall surfaces of the cavity 21 are respectively provided with a guide inserting column 33, the other pair of side wall surfaces of the cavity 21 are respectively provided with a first limiting block groove 34, the guide slot 31 is matched with the guide inserting column 33, the second limiting block 32 is matched with the first limiting block groove 34, and the inner sleeve 22 is stably and rapidly installed on the base 19 through the matching of the guide slot 31 and the guide inserting column 33 and the matching of the second limiting block 32 and the first limiting block groove 34.

In this embodiment, the contact assembly further includes a second spring 35 and a third spring 36, two second springs 25 are provided, one ends of the second springs are respectively disposed at the lower ends of the corresponding movable contact pieces 24, the other ends of the second springs 25 are abutted against the inner wall surface of the travel groove, by disposing the second springs 35, the movable contact pieces 24 are elastically mounted on the movable contact frame 23, after the movable contact pieces 24 are contacted with the static contact pieces 25, the movable contact frame 23 further moves upwards until reaching the maximum travel position, under the action of the second springs 25, the movable contact pieces 24 are abutted against the static contact pieces 25 and also do not deform greatly, so that the power-on safety is ensured, the third springs 36 are provided with two connecting columns 37 symmetrically disposed at the upper ends of the movable contact frames 23, the lower end surface of the panel cover 1 is further provided with connecting columns 37 matched with the corresponding third springs 36, the third springs 36 are disposed, so that when the movable contact frames 23 move upwards, the third springs 36 are compressed and store elastic potential energy, after the movable contact pieces 24 are in contact with the static contact pieces 25, the movable contact frames 23 can drive the movable contact frames 24 to reset the connecting columns 37, and the third springs are disposed stably.

In this embodiment, the inner side of the edge of the lower end face of the panel cover 1 is provided with a panel bottom shell 38, the outer wall surface of the panel bottom shell 38 is provided with a plurality of concave surfaces 39 with identical shapes, the concave surfaces 39 are internally provided with third limiting blocks 40, the upper end of the base 19 is provided with lugs 41 which are engaged with the corresponding concave surfaces 39, the lugs are provided with second limiting clamping grooves 42 which are engaged with the third limiting blocks 40, the base 19 is engaged with the concave surfaces 39 on the panel bottom shell 38 through the lugs 41, so that the base 19 and the panel bottom shell 38 are in quick positioning and matching, and the product is not easy to separate in the using process, and has a compact integral structure and is not easy to detach through the matching of the third limiting blocks 40 and the second limiting clamping grooves 42.

In this embodiment, the lower end surface of the panel cover 1 is further provided with an anti-disassembly post 43 matching with the lug 41, and the lug 41 on the base 19 after being mounted in place is inserted into the inner side of the anti-disassembly post 43, so that the lug 41 can be better embedded in the concave surface 39, and the structural design is reasonable.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (9)

1. The utility model provides a push type electromagnetic switch, includes panel face lid (1), panel components and hollow button (2) and first spring (3) that set up in groups, its characterized in that: be equipped with two button slots (4) on the up end of panel face lid (1), the bottom of button slot (4) is equipped with through hole (5), hollow button (2) with be equipped with two sets of in first spring (3), hollow button (2) slide from top to bottom connect in corresponding in button slot (4) and be the height distribute in on panel face lid (1), the inboard center of the rampart of hollow button (2) all is equipped with at least part and is located corresponding sliding push rod (6) in through hole (5), first spring (3) spacing cooperation in corresponding the rampart inboard of hollow button (2), the panel assembly still includes protection casing (7) and connect in corresponding button clamp plate (8) on hollow button (2), protection casing (7) close fit in on panel face lid (1) up end and be equipped with the cover portion (9) of parcel corresponding hollow button (2), button clamp plate (8) are material and inboard surface upper clamp-up and are equipped with the symmetry first clamp 10 and establish on the cover (9) and the clamp plate portion of corresponding clamp plate (2) is hugged closely on the face of first clamp plate (10).

2. A push-type electromagnetic switch according to claim 1, characterized in that: the panel assembly further comprises a gland (12) for pressing the protective cover (7), an opening is formed in the upper end face of the gland (12), the opening corresponds to the button groove (4), a circle of skirt edge (13) is formed by extending the edge of the lower end face of the gland (12), a first limiting block (14) is arranged on the inner wall face of the skirt edge (13), and the first limiting block (14) is matched with the lower end face of the panel cover (1).

3. A push-type electromagnetic switch according to claim 1, characterized in that: two second clamping legs (15) are symmetrically arranged on the bottom wall of the hollow button (2), second clamping grooves (16) matched with the second clamping legs (15) are formed in the corresponding side wall surfaces of the button groove (4), the lower ends of the second clamping grooves (16) penetrate through the panel surface cover (1), supporting columns (17) are further arranged on the two sides of the second clamping grooves (16) on the side wall of the button groove (4), and the supporting columns (17) are in supporting fit with the outer wall surfaces of the hollow button (2).

4. A push-type electromagnetic switch according to claim 1, characterized in that: the sliding push rod (6) is of a hollow structure with two through ends, a positioning inserting rod (18) is further arranged at the center of the inner side surface of the button pressing plate (8), and the lower end part of the positioning inserting rod (18) is inserted into the hollow structure of the sliding push rod (6).

5. A push-type electromagnetic switch according to claim 1, characterized in that: the electromagnetic switch further comprises a base (19), a contact assembly, an electromagnetic assembly and a suction piece (20), wherein two chambers (21) on the base (19) are all arranged into an upper end opening structure, the contact assembly comprises an inner sleeve (22) and a movable contact frame (23), two movable contact pieces (24) and four static contact pieces (25) which are integrally arranged on the inner sleeve (22), the movable contact frame (23) can slide up and down on the inner sleeve (22), the movable contact pieces (24) can slide up and down on the movable contact frame (23), the static contact pieces (25) are clamped on the inner sleeve (22) and are equally divided into two groups, the static contact points of the static contact pieces (25) are arranged at intervals in the height direction, the electromagnetic assembly comprises an armature (26), an iron core (27) arranged on the armature (26), a coil framework (28) arranged on the iron core (27), a magnetic ring (29) and two movable contact pieces (30) are arranged on the armature (26), and the two movable contact pieces (25) are connected with the two sides of the power supply piece (20) in a rotating mode, and the two sides of the power supply piece (20) are connected with the power supply piece (20) in a rotating mode.

6. A push-type electromagnetic switch according to claim 5, wherein: the inner sleeve (22) is provided with a pair of side wall surfaces, each side wall surface is provided with a guide slot (31), the other pair of side wall surfaces is provided with a second limiting block (32), each side wall surface of the cavity (21) is provided with a guide inserting column (33), the other pair of side wall surfaces is provided with a first limiting clamping groove (34), the guide slots (31) are matched with the guide inserting columns (33), and the second limiting blocks (32) are matched with the first limiting clamping grooves (34).

7. A push-type electromagnetic switch according to claim 6, wherein: the contact assembly further comprises a second spring (35) and a third spring (36), wherein the second spring (35) is provided with two springs and is respectively arranged at the lower ends of the movable contact pieces (24), the third spring (36) is provided with two springs and is symmetrically arranged at the upper ends of the movable contact frames (23), and the lower end face of the panel face cover (1) is further provided with a connecting column (37) matched with the corresponding third spring (36).

8. A push-type electromagnetic switch according to claim 7, wherein: the inner side of the edge of the lower end face of the panel face cover (1) is provided with a panel bottom shell (38), the outer wall surface of the panel bottom shell (38) is provided with a plurality of concave surfaces (39) with the same shape, third limiting blocks (40) are arranged in the concave surfaces (39), the upper end of the base (19) is provided with lugs (41) which are embedded with the corresponding concave surfaces (39), and the lugs (41) are provided with second limiting clamping grooves (42) which are buckled with the third limiting blocks (40).

9. A push-type electromagnetic switch according to claim 8, wherein: the lower end face of the panel face cover (1) is also provided with an anti-disassembly column (43) matched with the lug (41).