CN210671831U

CN210671831U - Folding type mousetrap

Info

Publication number: CN210671831U
Application number: CN201921468468.8U
Authority: CN
Inventors: 高峰; 高梦路; 高祥龙; 李溢涵; 李嘉鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-06-05
Anticipated expiration: 2029-09-05

Abstract

The utility model belongs to the technical field of the mouse trapping device, concretely relates to a fold type mousetrap, which comprises a bottom plate, wherein a fixed vertical plate vertical to the bottom plate is fixedly arranged on the bottom plate, the left end and the right end of the fixed vertical plate are respectively provided with a large swinging plate, the large swinging plate is movably connected with the fixed vertical plate through a through nail, a groove is arranged at the joint of the large swinging plate and the fixed vertical plate, a torsional spring is arranged in the groove, the through nail passes through from the central shaft of the torsional spring, one end of the torsional spring is connected with the fixed vertical plate, and the other end of the torsional; the big swing plate at the left end is connected with the left palm opening, the big swing plate at the right end is connected with the right palm opening, metal strips are arranged at the rear ends of the left palm opening and the right palm opening, a small swing plate is arranged on the metal strip of the left palm opening, a metal hook is arranged at the tail end of the small swing plate, and the metal hook is hooked on the metal strip of the right palm opening. The utility model aims at providing a fold formula mousetrap, this mousetrap is rational in infrastructure, saves space, facilitates the use, and sensitivity is high to the mode mousing success rate that utilizes the side to fold is high.

Description

Folding type mousetrap

Technical Field

The invention belongs to the technical field of mouse trapping devices, and particularly relates to a folding type mouse trap.

Background

The rats are the first of four pests, and it is not exaggerated that all living places of people have few rats, the buildings on the high buildings and underground coal mines below all have footprints of the rats, the rats not only spoil the food of people, but also carry more than twenty infectious diseases on the bodies, and certain harm is brought to the safety of the people, so people never give up catching the rats from beginning to end.

The existing mouse trapping methods in the market mainly comprise drug mouse trapping and non-drug mouse trapping, wherein the drug mouse trapping utilizes drugs as baits to trap mice, and the method has the defects that the drugs have certain toxicity, and if the drugs are accidentally eaten by people and livestock in the mouse trapping process, the drugs can endanger life seriously, so the drug mouse trapping method is gradually not adopted by people; the non-medicine mouse trapping mainly utilizes some mouse trapping devices to trap mice, and the mouse trapping device comprises a mouse trapping clamp, a mouse sticking plate and the like, but when a mouse is trapped, the mouse can be violently struggled, so that the mouse can possibly struggle to escape from the mouse trapping device, and the mouse trapping success rate is low.

Disclosure of Invention

Aiming at the defects of the problems, the invention aims to provide the folding type mousetrap which is reasonable in structure, saves space, is convenient to use, is high in sensitivity and is high in mouse trapping success rate by using a side folding mode.

The invention is realized by the following technical scheme: a folding type mousetrap is characterized by comprising a bottom plate, wherein a fixed vertical plate vertical to the bottom plate is fixedly arranged on the bottom plate, a hole is formed in the fixed vertical plate, a push-pull electromagnet and a second push switch penetrate through the hole and are arranged on the fixed vertical plate, and a movable iron core of the push-pull electromagnet is connected with a first push switch through a connecting plate;

the left end and the right end of the fixed vertical plate are respectively provided with a large swinging plate, the large swinging plate is movably connected with the fixed vertical plate through a through nail, a groove is formed at the joint of the large swinging plate and the fixed vertical plate, a torsion spring is arranged in the groove, the through nail penetrates through a central shaft of the torsion spring, one end of the torsion spring is connected with the fixed vertical plate, and the other end of the torsion spring is connected with the large swinging plate;

the big swing board of left end connects left palm mouth, and the big swing board of right-hand member connects right palm mouth, and the rear end of left palm mouth and right palm mouth all is equipped with the metal strip, is equipped with the little swing board on the metal strip of left palm mouth wherein, the end of little swing board is equipped with the metal hook, and the metal hook colludes on the metal strip of right palm mouth.

Furthermore, the two ends of the fixed vertical plate are respectively provided with an upper convex block and a lower convex block with nail holes, one side of the large swing plate close to the movable vertical plate is also provided with an upper convex block and a lower convex block with nail holes, a groove is formed between the upper convex block and the lower convex block and used for placing a torsion spring, and the through nails sequentially pass through the nail holes on the upper convex block of the large swing plate, the nail holes on the upper convex block of the fixed vertical plate, the torsion spring, the nail holes on the lower convex block of the fixed vertical plate and the nail holes on the lower convex block of the large swing plate, so that the fixed vertical plate is movably connected with the large swing plate.

Furthermore, the mousetrap takes the fixed vertical plate as the center, so that the large swing plate drives the left palm opening and the right palm opening on the two side surfaces to fold inwards to catch the mouse.

Furthermore, the mousetrap further comprises a first push switch, a second push switch and a push-pull electromagnet, wherein the first push switch is connected with the second push switch, and the second push switch is connected with the push-pull electromagnet.

Further, the second push switch is a push switch or a non-contact switch.

When the second push switch is a non-contact switch, the mousetrap further comprises a relay, the non-contact switch is connected with the control relay, and when the non-contact switch is in a normally open state, the relay is powered off; when the non-contact switch is in a normally-closed state, the relay is electrified, and the non-contact switch adopts any one of a diffuse reflection type photoelectric switch, a proximity switch, an infrared induction switch, a microwave induction switch or an electromagnetic induction switch.

Furthermore, when the second push switch adopts a push switch, a seesaw is further arranged on the bottom plate, bait is placed at the end of the seesaw contact bottom plate, the end of the non-contact bottom plate is arranged right above the push switch, after the bait is eaten by a mouse, the end of the seesaw contact bottom plate rises, the end of the non-contact bottom plate falls down to enable the seesaw to just press down the push switch, and the push switch triggers the push-pull type electromagnet.

Further, when the push switch is adopted, the first push switch, the push switch and the push-pull type electromagnet are connected in series to form a closed loop.

Further, when a non-contact switch is adopted, the non-contact switch is connected with a normally open contact of the relay in parallel and then is sequentially connected with the first push switch and the push-pull electromagnet in series to form a circuit closed loop.

The invention has the beneficial effects that:

1. the invention breaks the traditional mouse trapping mode, develops a new thought for trapping mice, utilizes the mode of folding the side opening to trap mice, enables the mice to relax and reduce the alertness of the mice so as to fall into the mouse trap, and has higher mouse trapping success rate.

2. The mousetrap provided by the invention has the advantages that the mouse is buckled in the closed space formed among the fixed vertical plate, the large swing plate, the left palm opening and the right palm opening in a manner that the left palm opening and the right palm opening rotate around the fixed vertical plate through the large swing plate, so that the mouse is not easy to escape after being caught.

3. The mousetrap provided by the invention senses a mouse by using the second press switch, controls the push-pull action of the push-pull electromagnet through the signal of the second press switch, pushes the small swing plate to enable the metal hook on the small swing plate to loosen the hooked right palm opening when the movable iron core of the push-pull electromagnet is pushed out, and enables the left palm opening and the right palm opening to be rapidly closed under the driving of the torsion spring and the large swing, so that the mouse has no chance of escaping, and the mousetrap has higher sensitivity and rapid action response by adopting the first press switch and the second press switch;

4. when the second press switch of the mousetrap adopts a non-contact switch, the metal hook is released to hook the right palm opening and simultaneously does not press the first press switch any more, and the non-contact switch cannot be triggered any more when a trapped mouse moves in a space formed by the left and right palm openings, so that the mouse trapping process of the mousetrap is more stable and reliable.

5. The mousetrap is reasonable in structure arrangement, takes the fixed vertical plate as the center, utilizes the left-right symmetrical palm opening folding to trap mice, is more convenient and practical, saves space, and does not harm human bodies.

Drawings

FIG. 1 is a schematic structural view of the present invention in an open state;

FIG. 2 is a schematic view of the back structure of the present invention in an open state;

FIG. 3 is a schematic structural view of the closed state of the present invention;

FIG. 4 is a schematic structural view of embodiment 1 of the present invention in a closed state;

FIG. 5 is a schematic structural view of the expanded state of embodiment 1 of the present invention;

FIG. 6 is a partial structural view of embodiment 1 of the present invention;

FIG. 7 is a schematic structural view of the expanded state of embodiment 2 of the present invention;

FIG. 8 is an enlarged view of the structure at A in FIG. 7;

FIG. 9 is a schematic view of the structure of the left palm opening of the present invention;

FIG. 10 is a schematic view of the structure of the right cuff of the present invention;

FIG. 11 is a schematic structural diagram of a non-contact switch according to the present invention;

FIG. 12 is a schematic diagram of a push-pull electromagnet according to the present invention;

fig. 13 is a schematic view of the connection of the push-pull electromagnet and the first push switch of the present invention.

In the figure, 1 bottom plate, 2 relays, 3 left palm openings, 4 right palm openings, 5 through nails, 6 metal strips, 7 small swinging plates, 71 metal hooks, 8 large swinging plates, 81 upper convex blocks, 82 lower convex blocks, 83 grooves, 9 torsion springs, 10 first press switches, 11 fixed vertical plates, 12 push-pull type electromagnets, 13 non-contact switches, 14 movable iron cores, 15 connecting plates, 16 second press switches, 17 teeterboards and 18 press switches.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-13, a description of the various components and their operation.

Bottom plate 1: a square plate made of metal or plastic has a supporting function.

Fixing the vertical plate 11: a square thin plate made of metal materials or plastics is used as a movable fulcrum of a large swinging plate 8 arranged on the bottom plate 1, and a hole is formed in the middle of the square thin plate for installing a push-pull electromagnet and a second press switch 16; can also be used as a wall to block the mouse.

Large swing plate 8: swing with one end of the fixed vertical plate 11 as the center, the left end is connected with the left palm opening 3, and the right end is connected with the right palm opening 4.

Left palm opening 3: there is metal or plastic made to surround the part on three sides.

Right palm opening 4: there is metal or plastic made to surround the part on three sides.

And (5) piercing through the nail: spike made of metal.

Metal strip 6: spike made of metal.

Connecting plate 15: the tail of the movable iron core 14 is connected with the plate of the first push switch 10.

Small swing plate 7: a plate swinging by taking the metal strip 6 at the tail part of the left palm opening 3 as a center, and a metal hook 71 is arranged at the tail end of the small swinging plate 7.

The push-pull electromagnet comprises a coil, a movable iron core 14, a static iron core and the like, utilizes the leakage magnetic flux principle of a spiral pipe, utilizes the long-distance attraction of the movable iron core 14 and the static iron core of the electromagnet to realize the linear reciprocating motion of traction, and has the characteristic of quick action.

First push switch 10: an electrical appliance switch. One structure is three binding posts, one common end is normally closed and the other is normally open; one configuration is two terminals, a common terminal and a normally closed or open terminal.

And a torsion spring 9: a mechanical part working by elasticity provides a large force for swinging a plate 8 to move.

Second push switch 16: including two forms-push switch 18 and non-contact switch 13. The push switch 18 is the same as the first push switch 10, and the non-contact switch 13 is a diffuse reflection type photoelectric switch, a proximity switch, an infrared inductive switch, a microwave inductive switch, an electromagnetic inductive switch, or the like.

And (4) a relay 2: a device for controlling a large current with a small current.

Seesaw 17: one end is used for placing bait, and the other end is provided with a press switch. When the mouse eats the bait at one end of the seesaw 17, the other end of the seesaw 17 sinks to touch the push switch.

Example 1:

embodiment 1 is a specific example of the case where the non-contact switch 13 is used as the second push switch 16 in the present invention.

As shown in fig. 1-6, the mousetrap of the invention comprises a bottom plate 1, a fixed vertical plate 11, a torsion spring 9, a large swing plate 8, a small swing plate 7, a left palm opening 3, a right palm opening 4, a push-pull electromagnet 12, a first push switch 10, a non-contact switch 13 and a relay 2, wherein the fixed vertical plate 11 which is perpendicular to the bottom plate 1 is fixedly arranged on the bottom plate 1, the bottom plate 1 is fixed on the fixed vertical plate 11 by welding, screw fixation or clamping groove, and the like, a hole is arranged in the middle of the fixed vertical plate 11, wherein the push-pull electromagnet 12 and the non-contact switch 13 are arranged on the fixed vertical plate 11 through the hole, because the fixed vertical plate 11 is only a thin plate and the push-pull electromagnet 12 needs to be deep, half of the push-pull electromagnet 12 is arranged in front of the fixed vertical plate 11, and the other half, namely the end of the movable iron core, the tail end of the movable iron core 14 is connected with a connecting plate 15, a first press switch 10 is installed on the connecting plate 15, the press point of the first press switch 10 is installed outwards, namely, the press point is installed towards the end far away from the push-pull type electromagnet 12, the signal receiving end of the non-contact switch 13 is installed inwards, and the signal induction area is adjusted in the area where the left palm opening and the right palm opening 4 can be folded.

The left end and the right end of the fixed vertical plate 11 are respectively provided with a large swinging plate 8, one side of the large swinging plate 8 is movably connected with the fixed vertical plate 11 through a through nail 5, namely, the left side and the right side of the fixed vertical plate 11 are provided with an upper convex block 81 and a lower convex block 82 with nail holes, one side of the large swing plate 8 connected with the fixed vertical plate 11 is also provided with an upper convex block 81 and a lower convex block 82 with nail holes, the upper convex block 82 and the lower convex block 82 of the large swing plate 8 and the fixed vertical plate 11 are arranged in a staggered manner, a groove 83 is formed between the convex blocks, the groove 83 is used for placing the torsion spring 9, one end of the torsion spring 9 is installed on the fixed vertical plate 11, the other end of the torsion spring is installed on the large swing plate 8, the through nails 5 sequentially pass through the nail holes on the upper convex block 81 of the large swing plate 8, the nail holes on the upper convex block 81 of the fixed vertical plate 11, the central axis position of the torsion spring 9, the nail holes on the lower convex block 82 of the fixed vertical plate 11 and.

The other side of the large swing plate 8 is connected with the palm opening, namely the large swing plate 8 at the left end is connected with the left palm opening 3, the large swing plate 8 at the right end is connected with the right palm opening 4, the rear ends of the left palm opening 3 and the right palm opening 4 are both provided with metal strips 6, wherein the metal strip 6 of the left palm opening 3 is provided with a small swing plate 7, the tail end of the small swing plate 7 is provided with a metal hook 71, and the metal hook 71 is hooked on the metal strip 6 of the right palm opening 4. When the metal hook 71 is hooked on the metal strip 6 of the right palm opening 4, the small swing plate 7 presses the first press switch 10 at the moment, the first press switch 10 is in a closed state, the mouse trap is in an open state, and when the metal hook 71 is not hooked on the metal strip 6 of the right palm opening 4, the first press switch 10 is in an open state at the moment, and the mouse trap is in a closed state.

The non-contact switch 13 is independently connected with the control relay 2, namely when the non-contact switch 13 is in a normally open state, the relay 2 is powered off; when the non-contact switch 13 is in the normally closed state, the relay 2 is charged.

The non-contact switch 13 is connected with the normally open contact of the relay 2 in parallel and then is sequentially connected with the first push switch 10 and the push-pull electromagnet 12 in series.

When the mousetrap is in an open state, an included angle formed between the front end of the left palm opening 3 and the front end of the right palm opening 4 is 180 degrees.

The closed space is enclosed by the fixed vertical plate 11 at the back, the left palm opening 3 and the right palm opening 4 are enclosed on the upper, lower, left and right sides to form a mouse trapping closed space, and mice are enclosed inside.

At the initial state, the mousetrap is in an open state, the metal hook 71 of the small swing plate 7 hooks the metal strip 6 of the right palm opening 4, so that the small swing plate 7 presses the pressing point of the first press switch 10, the first press switch 10 is in a normally closed state, and the non-contact switch 13 is in a normally open state at the moment and the push-pull electromagnet 12 is in a power-off state because no mouse moves in the induction area.

When a mouse enters the induction zone, the non-contact switch 13 senses a signal, the initial normally open state is changed into the normally closed state, the push-pull electromagnet 12 is electrified, the movable iron core 14 of the push-pull electromagnet 12 moves forwards to push the metal hook 71 open, the left palm opening 4 and the right palm opening 4 lose the control of the metal hook 71, and the mouse is driven by the torsion spring 9 to fold inwards by taking the fixed vertical plate 11 as the center to hold the mouse in the closed space; after the metal hook 71 is pushed away, the first push switch 10 is changed from the normally closed state to the normally open state, at this time, the push-pull electromagnet 12 is de-energized, the movable iron core 14 is restored to the original position, and at this time, the push-pull electromagnet 12 cannot be triggered again due to the mouse activity in the closed space by the non-contact switch 13.

The relay 2 is electrified while the non-contact switch 13 is turned into a normally closed state, and the normally open contact of the relay 2 is turned into a normally closed contact, the relay 2 is installed to make the device more stable, and when the non-contact switch 13 cannot trigger the push-pull electromagnet 12, the contact of the relay 2 can trigger the push-pull electromagnet 12.

The non-contact switch 13 may be any one of a diffuse reflection type photoelectric switch, a proximity switch, an infrared induction switch, a microwave induction switch, and an electromagnetic induction switch.

Example 2:

the second push switch 16 according to the present invention is a specific example of the case of the push switch 18.

As shown in fig. 1-3, the mousetrap of the invention comprises a bottom plate 1, a fixed vertical plate 11, a torsion spring 9, a large swing plate 8, a small swing plate 7, a left palm opening 3, a right palm opening 4, a push-pull electromagnet 12, a first push switch 10, a push switch and a seesaw 17, wherein the fixed vertical plate 11 which is perpendicular to the bottom plate 1 is fixedly arranged on the bottom plate 1, the bottom plate 1 is fixed on the fixed vertical plate 11 by welding, screw fixation or clamping groove, and the like, a hole is arranged at the middle position of the fixed vertical plate 11, wherein the push-pull electromagnet 12 and the push switch 18 are arranged on the fixed vertical plate 11 through the hole, because the fixed vertical plate 11 is only a thin plate and the push-pull electromagnet 12 needs to be deep, half of the push-pull electromagnet 12 is arranged in front of the fixed vertical plate 11, the other half, namely the end of the movable iron core 14 passes through the fixed vertical plate 11 at the back thereof, the connecting plate 15 is provided with a first push switch 10, and the push point of the first push switch 10 is arranged outwards, namely towards the end far away from the push-pull electromagnet 12.

As shown in fig. 4, the left and right ends of the fixed vertical plate 11 are respectively provided with a large swing plate 8, one side of the large swing plate 8 is movably connected with the fixed vertical plate 11 through a rivet 5, that is, the left and right sides of the fixed vertical plate 11 are provided with an upper convex block 81 and a lower convex block 82 with rivet holes, one side of the large swing plate 8 connected with the fixed vertical plate 11 is also provided with an upper convex block 81 and a lower convex block 82 with rivet holes, the upper convex block 82 and the lower convex block 82 of the large swing plate 8 and the fixed vertical plate 11 are arranged in a staggered manner and form a groove 83 between the convex blocks, the groove 83 is used for placing a torsion spring 9, one end of the torsion spring 9 is installed on the fixed vertical plate 11, the other end is installed on the large swing plate 8, the rivet 5 sequentially passes through the rivet hole on the upper convex block 81 of the large swing plate 8, the rivet hole on the upper convex block 81 of the fixed vertical plate 11, the central axis position of the torsion spring, the fixed vertical plate 11 is movably connected with the large swinging plate 8.

As shown in figures 7-8, a seesaw 17 is further mounted on the bottom plate 1, the fulcrum of the seesaw 17 is arranged on the bottom plate 1, wherein a bait for luring a mouse is placed on the contact end of the seesaw 17 on the bottom plate 1, the non-contact end of the bottom plate 1 is raised above the push switch 18, when the mouse eats the bait, the contact end of the seesaw 17 on the bottom plate 1 loses the weight pressure of the bait and raises, the non-contact end of the bottom plate 1 falls, at this time, the seesaw 17 falls on the push switch 18 to press the push switch 18, and the push switch 18 is turned off from a normally open state.

The first push switch 10, the push switch 18 and the push-pull electromagnet 12 are connected in series in sequence to form a closed loop.

At the initial state, the mousetrap is in an open state, the metal hook 71 of the small swing plate 7 hooks the metal strip 6 of the right palm opening 4, so that the small swing plate 7 presses the pressing point of the first press switch 10, the first press switch 10 is in a normally closed state, the seesaw 17 is provided with bait, the press switch 18 is in a normally open state, and the push-pull electromagnet 12 is in a power-off state.

When a mouse enters the mousetrap, the bait on the mousetrap is eaten or falls off from the seesaw 17, the end of the seesaw 17 where the bait is not placed falls down and presses on the pressing point of the press switch 18, the press switch 18 is closed, the control loop is electrified, the push-pull type electromagnet 12 is electrified, the movable iron core 14 of the push-pull type electromagnet is pushed forwards, the small swing plate 7 is pushed open, the metal hook 71 of the push-pull type electromagnet is not hooked on the metal strip 6 of the right palm opening 4, the left palm opening 4 and the right palm opening 4 swing under the action of the torsion spring 9, the push-pull type electromagnet is quickly closed and closed, the mouse is caught in a closed space, meanwhile, the first press switch 10 loses the press of the small swing plate 7, the normally closed state is changed into the normally open state, the electromagnet 12 loses electricity after being electrified, the push-pull type electromagnet is reset to the original position.

When the mousetrap is used again, the metal hook 71 of the small swinging plate 7 is hooked on the metal strip 6 of the right palm opening 4, and one end of the seesaw 17 is provided with a bait to trap the mouse again.

The closed space is enclosed by the fixed vertical plate 11 at the back, and the left palm opening 3 and the right palm opening 4 are enclosed at the upper, lower, left and right sides to form a mouse trapping closed space enclosing the mouse.

The mousetrap can also be used for catching sparrows, cats and mice and the like.

Other technical features than those described in the specification are known to those skilled in the art.

Claims

1. A folding type mousetrap comprises a bottom plate and is characterized in that a fixed vertical plate perpendicular to the bottom plate is fixedly arranged on the bottom plate, a hole is formed in the fixed vertical plate, a push-pull electromagnet and a second push switch penetrate through the hole and are arranged on the fixed vertical plate, and a movable iron core of the push-pull electromagnet is connected with a first push switch through a connecting plate;

the left end and the right end of the fixed vertical plate are respectively provided with a large swinging plate, the large swinging plates are movably connected with the fixed vertical plate through-nails, a groove is formed in the joint of the large swinging plates and the fixed vertical plate, a torsion spring is arranged in the groove, the through-nails penetrate through a central shaft of the torsion spring, one end of the torsion spring is connected with the fixed vertical plate, and the other end of the torsion spring is connected with the large swinging plates;

2. A closed mousetrap according to claim 1 wherein the fixed vertical plate has an upper protrusion and a lower protrusion with nail holes at both ends, the large swing plate has an upper protrusion and a lower protrusion with nail holes at one side near the movable vertical plate, a groove is formed between the upper protrusion and the lower protrusion for placing the torsion spring, and the through-nails sequentially pass through the nail holes on the upper protrusion of the large swing plate, the nail holes on the upper protrusion of the fixed vertical plate, the torsion spring, the nail holes on the lower protrusion of the fixed vertical plate and the nail holes on the lower protrusion of the large swing plate to movably connect the fixed vertical plate and the large swing plate.

3. A closed mousetrap according to claim 2 wherein the mousetrap is centered on the fixed vertical plate such that the large swing plate drives the left and right openings on the two sides to close inward to catch a mouse.

4. A folding mouse trap according to any one of claims 1-3 wherein the mouse trap comprises a first push switch, a second push switch and a push-pull electromagnet, wherein the first push switch is connected to the second push switch and the second push switch is connected to the push-pull electromagnet.

5. A folding mouse trap according to claim 4 wherein the second push switch is a push switch or a non-contact switch.

6. A folding type mousetrap according to claim 5 wherein when the second push switch is a non-contact switch, the mousetrap further comprises a relay, the non-contact switch is connected with the control relay, and the non-contact switch is any one of a diffuse reflection type photoelectric switch, a proximity switch, an infrared induction switch, a microwave induction switch or an electromagnetic induction switch.

7. A foldable mousetrap according to claim 5 wherein when the second push switch is a push switch, a seesaw is further provided on the base, a bait is placed on the contact base end of the seesaw, the non-contact base end is provided directly above the push switch, when the bait is eaten by a mouse, the contact base end of the seesaw rises, the non-contact base end falls down to allow the seesaw to just push down the push switch, and the push switch triggers the push-pull electromagnet.