CN210563861U - Push-rod switch - Google Patents

Abstract

The utility model provides a push rod switch, which comprises a base, a push rod and a push rod, wherein the base is provided with a containing space, and a screw lock part is protruded in the containing space; the upper cover is provided with a containing part, and a locking part is protruded in the containing part; a warning module; is mounted on the base. Two upper covers installed at both ends of the upper cover. Two lower covers installed at both ends of the base. The utility model discloses can decompose into a plurality of independent components, can let the user cut the equipment again according to the on-the-spot demand by oneself, and do not influence the efficiency when cutting.

Description

Push-rod switch

Technical Field

The utility model relates to a technical field of sliding door switch especially relates to a push rod switch of cooperation electromagnetic lock.

Background

The actuating principle of a common electromagnetic lock is to utilize the principle of generating electromagnetism, and when current passes through the electromagnetic lock, strong attraction force is generated to lock a door. When a user pushes a push rod switch, the electromagnetic lock can be unlocked.

Because there are door plant of various different specifications in the market at present, so when will installing the lock push rod, installer often can carry the electromagnetic lock push rod of different specifications size according to customer's demand. However, it is difficult for a general customer to accurately inform the installer of the door specification and size in the home, so the installer can start the push rod switch with various specifications and sizes. This approach undoubtedly increases the confusion and inconvenience for the installer.

SUMMERY OF THE UTILITY MODEL

The main objective of the present invention is to provide a push rod switch which can be disassembled into a plurality of independent components, so that the user can cut and reassemble the push rod switch according to the on-site requirement.

To achieve the above objects and effects, the present invention provides a push rod switch, which comprises a base having a receiving space; two lower side covers installed at both ends of the base; the warning module is arranged in the accommodating space and is provided with a switch; the upper cover is provided with a containing part, the upper cover is movably arranged on the base, and the containing part corresponds to the containing space and the warning module; two upper side covers installed at both ends of the upper cover, the upper side covers corresponding to the lower side covers; wherein the cover and the switch are capable of moving towards the base and actuating the warning module.

In an embodiment, the warning module includes a buzzer, a circuit board and the switch, the switch is mounted on the circuit board and has a spring piece, and the buzzer is electrically connected to the switch.

In an embodiment, the push rod switch further includes two positioning slots and two screw portions, two opposite sides of the accommodating space respectively have a wall surface, the two screw portions are convexly formed on inner surfaces of the two wall surfaces and are opposite to each other, the screw portions are in a strip structure, an extending direction of the screw portions is consistent with a length direction of the base, an axial inner portion of each screw portion is a hollow structure, the hollow structure is used for forming a screw hole, the two positioning slots respectively form a space between the two screw portions and a bottom surface of the accommodating space, and two opposite sides of the circuit board are embedded into the two opposite screw holes.

In one embodiment, the push rod switch further includes a transparent plate, and the upper cover has a transparent hole penetrating through a top surface of the upper cover, the transparent plate is installed in the accommodating portion and opposite to the transparent hole and an LED module.

In an embodiment, each of two opposite sides of the receiving portion of the upper cover has a strip-shaped locking portion, a first groove is formed between each locking portion and the top surface of the receiving portion, an axial inner portion of each locking portion is a hollow structure, the hollow structure is used for forming an upper cover screw fixing hole, and two first grooves are formed in the receiving portion.

In an embodiment, the push switch further includes an LED module, the LED module is mounted in the accommodating portion of the upper cover, and the LED module is electrically connected to the warning module and controlled by the switch.

In an embodiment, each of two opposite sides of the accommodating portion of the upper cover has a long rib, a second groove is formed between each rib and the top surface of the accommodating portion, two second grooves are formed in the accommodating portion, and two sides of the LED module are mounted in the two second grooves.

In one embodiment, the push switch further includes an elastic member installed between the upper cover and the base, and a restoring force of the elastic member is used to drive the upper cover to move away from the base.

In one embodiment, the push rod switch further comprises a fixed iron connecting member, an upper cover fixed iron and a lower cover fixed iron, wherein two opposite sides of the fixed iron connecting member are respectively provided with a first connecting hole, a second connecting hole and a fixed inserting hole, the fixed inserting hole is an arc-shaped long hole and is positioned between the first connecting hole and the second connecting hole, the upper cover fixed iron is arranged on the upper cover, one end of the upper cover fixed iron is provided with two upper cover fixed iron positioning holes, the lower cover fixed iron is arranged on the base, two first pins and two second pins extend from two sides of the lower cover fixed iron, one first pin is opposite to the other first pin, one second pin is opposite to the other second pin, two lower cover connecting holes are respectively formed on the two second pins and are opposite, two lower cover fixed holes are formed on the first pins and are opposite, the fixed iron connecting member is arranged between the upper cover fixed iron and the lower cover fixed iron, the two opposite sides of the fixed iron connecting piece are respectively provided with a first connecting hole, a second connecting hole and an arc-shaped fixed inserting hole, the fixed inserting hole is positioned between the first connecting hole and the second connecting hole, the second connecting hole corresponds to the lower cover fixing hole, the fixed inserting hole corresponds to the lower cover connecting hole, the first connecting hole corresponds to the upper cover fixed iron positioning hole, the elastic piece is a torsion spring and is arranged between the fixed iron connecting piece and the lower cover fixed iron, two ends of the torsion spring abut against the fixed iron connecting piece and the lower cover fixed iron, three shaft pins are respectively inserted into the corresponding fixed inserting hole and the lower cover connecting hole, the corresponding second connecting hole and the lower cover fixing hole, the corresponding first connecting hole and the corresponding upper cover fixed iron positioning hole, and the two shaft pins also penetrate through the torsion spring.

In one embodiment, the push switch further includes a locking assembly and a lower cover fixing iron, the lower cover fixing iron is mounted on the base and has an L-shaped fastener facing the upper cover, the locking assembly includes a key fixing iron, a key and a key fixing block, the upper cover has a key hole, the key fixing block is inserted into the key hole of the upper cover, the key is engaged with the key fixing block, the key fixing block is located between the upper cover and the lower cover and connected to the key fixing iron, the key can rotate to drive the key fixing iron to move the key fixing iron to below the L-shaped fastener and to leave the L-shaped fastener.

In one embodiment, one side of the lower cover has a lower cover preformed hole, one side of the upper cover has an upper cover preformed hole, and the upper cover is opposite to the lower cover, so that the lower cover preformed hole and the upper cover preformed hole form a conduit mounting hole.

In one embodiment, the push rod switch further comprises a conduit, and the conduit is mounted in the conduit mounting hole.

The following description is provided for the purpose and effect of the present invention, and together with the drawings, serve to explain the best mode of operation and its mode of operation.

Drawings

Fig. 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a circuit board mounting diagram of the present invention.

Fig. 4A is a mounting diagram of the fixing iron of the lower cover of the present invention.

Fig. 4B is the installation view of the lower side cover and the machine plate fixing block of the present invention.

Fig. 5 is an exploded view of the present invention.

Fig. 6A is a structure view of the upper cover of the present invention.

Fig. 6B is the utility model discloses light-passing board and LED module installation picture.

Fig. 7 is an installation view of the upper cover of the present invention.

Fig. 8 is an exploded view of the present invention.

Fig. 9 is a sectional view of the fixing iron of the present invention.

Fig. 10 is a view showing the installation of the conduit of the present invention.

Fig. 11 is a usage state diagram of the present invention.

Fig. 12 is a schematic view of the usage state of the present invention.

Fig. 13 is a diagram of the normally open released state of the present invention.

Fig. 14 is a schematic diagram of the cutting of the present invention.

Reference numerals

10 base 101 wall

12 accommodating space 14 positioning groove

15 screw part 16 screw hole

18 warning module 20 circuit board

22 switch 24 elastic sheet

26 buzzer 30 lower side cover

300 screw hole 302 lower side cover movable sheet

303 lower side cover preformed hole 34 lower cover fixing iron

340 lower side cover fixing screw hole 341 first pin

343 second pin 344 lower cover connection hole

345 lower cover fixing hole 346L-shaped fastener

360 screw fixing through holes of 36 machine plate fixing blocks

38 plastic fixing seat 40 upper cover 400 accommodating part

401 a first groove of the wall surface 402

404 second recess 406 upper cover screw retaining hole

42 locking part 43 rib

46 light hole 48 upper side cover

48a first face 48b second face

480 key hole 482 upper side cover screw fixing hole

484 Upper cover removable sheet 485 Upper cover Preset hole

50 light-transmitting plate 502 salient point

52 upper cover fixing iron 52a downward pin

Screw hole for fixing upper cover of 52b U-shaped pin 520

522 upper cover fixing iron sheet of upper cover fixing iron positioning hole 54

540 inner through hole 542 outer through hole

56LED module 60 fixed iron connecting piece

602 first connection hole 604 second connection hole

606 fixed socket 64 axle pin

66 torsion spring 70 locking assembly

72 key fixed iron 74 key

76 key fixed block 80 conduit mounting hole

82 conduit 90 door panel

Detailed Description

Referring to fig. 1, a push rod switch according to a preferred embodiment of the present invention is a combination of a base 10 and an upper cover 40. The utility model discloses a push rod switch installs in a door plant 90 that has the emergency exit of electromagnetic lock, and this base 10 is a surface that is fixed in this door plant 90. In the embodiment, the electromagnetic lock has the same function as a commercially available electromagnetic lock, and has a door locking function, which will not be described in detail herein.

Referring to fig. 2, a base 10 has a receiving space 12, and a warning module 18 is installed in the receiving space 12. The two ends of the base 10 are respectively connected with a combination of a lower side cover 30, a lower cover fixing iron 34 and a board fixing block 36.

As shown in fig. 3, the base 10 is a long member and has a U-shaped cross section, such that the base 10 has the accommodating space 12 in a U-shape, and two ends of the accommodating space 12 are open.

The inner surfaces of two opposite wall surfaces 101 of the accommodating space 12 are respectively provided with a screw part 15 protruding towards the center of the accommodating space 12. The screw 15 is of elongate configuration and extends in the same direction as the length of the base 10. Each of the screw portions 15 has a hollow structure in an axial direction, and the hollow structure is configured to form a screw hole 16.

The accommodating space 12 has two positioning slots 14 therein. Specifically, each positioning groove 14 is formed between the screw lock portion 15 and the bottom surface of the accommodating space 12. In particular, the positioning groove 14 is formed by the distance between the screw 15 and the bottom surface of the accommodating space 12.

The warning module 18 includes a circuit board 20, a switch 22, an elastic sheet 24 and a buzzer 26. Further, the circuit board 20 is a rectangular plate-shaped member, and the switch 22 and the buzzer 26 are mounted on the circuit board 20. Secondly, the switch 22 has the elastic piece 24, and one end of the elastic piece 24 is a free end, in other words, the switch can be actuated by pressing the elastic piece 24. The buzzer 26 is electrically connected to the switch 22. The warning module 18 is inserted into the screw hole 16 through the rectangular plate-shaped structure of the circuit board 20, so that the warning module 18 is mounted in the screw hole 16; two plastic fixing seats 38 are respectively embedded into the positioning groove 14 and installed at two ends of the warning module 18, and in this embodiment, the warning module 18 and the plastic fixing seats 38 are locked by a screw lock; so that the alarm module is stably mounted on the base 10.

The two lower covers 30 disclosed in this embodiment have the same structure and shape. The two lower cover fixing irons 34 have substantially the same structure and shape, and the difference between one lower cover fixing iron 34 and the other lower cover fixing iron 34 is slightly different, which will be described later. The two machine board fixing blocks 36 have the same structure and shape, and one of the lower side cover 30, the lower cover fixing iron 34 and the machine board fixing block 36 are used for being mounted at one end of the base 10; another lower cover 30, another lower cover fixing iron 34 and another machine board fixing block 36 are installed at the other end of the base 10. Hereinafter, only the structure and the assembly state of the lower cover 30, the lower cover fixing iron 34 and the board fixing block 36 will be described.

Referring to fig. 4A, the lower cover fixing iron 34 is installed at one end of the positioning groove 14. The lower cover fixing iron 34 is an elongated plate-shaped member, and the lower cover fixing iron 34 has two lower cover fixing screw holes 340, two lower cover connecting holes 344, and two lower cover fixing holes 345.

Further, the two lower lid fixing screw holes 340 are elongated and penetrate through the lower lid fixing iron 34. Two first pins 341 and two second pins 343 extend upward (in the direction shown) from two sides of the lower cover fixing iron 34. One of the first pins 341 corresponds to the other of the first pins 341, and one of the second pins 343 corresponds to the other of the second pins 343. Two lower cover connection holes 344 are formed in the second pin 343 and penetrate the second pin 343 and are opposite to the other lower cover connection hole 344. Two of the lower cover fixing holes 345 are formed on the first pin 341 and penetrate the first pin 341 and are opposite to the other lower cover fixing hole 345. One end of the lower cover 30 is open, and the bottom surface of the lower cover 30 has two elongated screw holes 300 penetrating therethrough, so that when the lower cover 30 is mounted on one end of the base 10, the lower cover fixing screw holes 340 of the lower cover fixing iron 34 are opposite to the elongated screw holes 300 of the lower cover 30, and the lower cover fixing iron 34 is coupled to the lower cover by means of suitable connecting members, such as screws and bolts.

Referring to fig. 2, the difference between the two lower cover fixing irons 34 is that one side of one of the lower cover fixing irons 34 is bent upward to form an L-shaped fastener 346.

Referring to fig. 4B, the board fixing block 36 has two screw fixing holes 360. Further, two ends of the board fixing block 36 are respectively provided with the screw fixing through hole 360, and the two screw fixing through holes 360 penetrate through the board fixing block 36. The board fixing block 36 is installed at one end of the base 10, and two screw fixing holes 360 are provided corresponding to the screw holes 16 for the insertion and positioning of a predetermined screw.

The lower cover 30 is mounted to one end of the base 10. One end of the lower cap 30 is open, and the bottom surface of the lower cap 30 has two elongated screw holes 300 penetrating therethrough. The inner side of the lower cover 30 is recessed to form a lower cover movable piece 302. The lower cover removable piece 302 may be formed with a predetermined cut line or a cut configuration on the surface of the lower cover 30 by a machining means, whereby the lower cover removable piece 302 can be removed using an appropriate tool. Thus, after the lower cover movable piece 302 is removed, a hole is formed at the original position of the lower cover movable piece 302.

Referring to fig. 5, one side of the top cover 40 has a receiving portion 400, and a light hole 46 penetrates through the top surface of the top cover 40. Specifically, the top cover 40 is a long member with an n-shaped cross section, such that the top cover 40 has the accommodating portion 400 with an n-shaped shape, and two ends of the accommodating portion 400 are open. A transparent plate 50 and an LED module 56 are mounted in the receiving portion 400. The LED module 56 and the light-transmitting plate 50 can be assembled in a relative manner. The two ends of the upper cover 40 are respectively connected with a combination of an upper cover 48, an upper cover fixing iron 52 and an upper cover fixing iron sheet 54.

Referring to fig. 6A, the inner surfaces of the two opposite wall surfaces 401 of the accommodating portion 400 of the upper cover 40 are respectively protruded with a locking portion 42 and a rib 43. Two of the locking portions 42 are of a long strip structure and extend in the same direction as the longitudinal direction of the upper cover 40, and the two locking portions 42 are opposite to each other. The axial inner portion of each locking portion 42 is a hollow structure for forming an upper cover screw fixing hole 406. Two of the ribs 43 are of a long strip configuration and extend in the same direction as the longitudinal direction of the upper cover 40, and secondly, the two ribs 43 are opposed to each other.

The accommodating portion 400 has two first grooves 402 and two second grooves 404 therein. Specifically, the method is described. The first groove 402 is formed by the distance between the locking part 42 and the top surface of the accommodating part 400; the distance between the locking portion 42 and the rib 43 forms the second groove 404.

Referring to fig. 6B, the transparent plate 50 is a transparent long plate-shaped member, and a plurality of bumps 502 can be mounted on one surface of the transparent plate 50 according to the requirement of a customer by the transparent plate 50. The transparent plate 50 is mounted on the LED module 56 and corresponds to the transparent hole 46, such that the bumps 502 are exposed from the cover 40 and can be touched. The LED module 56 is embedded in the second groove 404, and the LED module 56 is electrically connected to the circuit board (not shown).

The two upper covers 48 of the present embodiment have substantially the same structure and shape, the two upper cover fixing irons 52 have the same structure and shape, the two upper cover fixing iron pieces 54 have the same structure and shape, and the two fixing iron connecting pieces 60 have the same structure and shape. The following description will be made only with reference to the structure and assembly positions of the upper cover fixing iron 52, the upper cover fixing iron piece 54 and the fixing iron connecting member 60. Next, the upper cover 48 is slightly different from the other upper cover 48, but the difference will be described later.

Referring to fig. 7, the top cover fixing iron 52 has two top cover fixing screw holes 520 and two top cover fixing iron positioning holes 522. Further, one end of the top cover fixing iron 52 extends downward (in the direction shown in the figure) to form two downward pins 52a, and two top cover fixing screw holes 520 penetrate through the two downward pins 52 a. Two sides of the other end of the top cover fixing iron 52 extend downward to form an n-shaped pin 52b, and two top cover fixing iron positioning holes 522 penetrate through the n-shaped pin 52 b. The upper cover fixing iron 52 is inserted into the first groove 402 such that two upper cover fixing screw holes 520 are located at the end of the upper cover 40.

The upper cover 48 has a first surface 48a and two second surfaces 48b, wherein the two second surfaces 48b are formed on two sides of the first surface 48a and are opposite to each other. An upper cover flap 484 is formed on one of the second faces 48 b. Two upper cover screw fixing holes 482 penetrate the first surface 48a, and the upper cover screw fixing holes 482 are used to correspond to the upper cover screw fixing holes 406. The upper covers 48 are installed at both ends of the upper cover 40.

The difference between the two upper side covers 48 of the present embodiment is that one of the upper side covers 48 has a key hole 480, and the key hole 480 penetrates through the first surface 48 a.

The upper cover fixing iron piece 54 has two inner through holes 540 and two outer through holes 542. Two inner through holes 540 penetrate the upper cover fixing iron piece 54, and two outer through holes 542 penetrate the upper cover fixing iron piece 54. Two inner through holes 540 are formed between the two outer through holes 542. The inner through hole 540 corresponds to the upper cover fixing screw hole 520, and the upper cover fixing iron piece 54 is mounted on one end of the upper cover fixing iron 52 by threading and screwing of a proper screw, so that the upper cover fixing iron piece 54 is mounted on the upper cover 40.

The upper cover 48 is disposed adjacent to one end of the upper cover 40, and the outer through hole 542 corresponds to the upper cover screw fixing hole 406 and the upper cover screw fixing hole 482. The upper cover 48 is mounted to one end of the upper cover 40 by threading and screwing appropriate screws.

Referring to fig. 8 and 9, the two opposite sides of the fixed iron connecting piece 60 of the present embodiment respectively have a first connecting hole 602, a second connecting hole 604 and a fixed inserting hole 606. The fixing insertion hole 606 is located between the first connection hole 602 and the second connection hole 604, and the fixing insertion hole 606 is an arc-shaped long hole.

A locking assembly 70 includes a key anchor 72, a key 74 and a key anchor 76. The key fixing block 76 is inserted into the key hole 480 of the upper cover 48. The key 74 engages the key retention block 76. The key anchor 76 is located between the upper cover 48 and the lower cover 30 and is connected to the key anchor 72. The key 74 is rotated to move the key fixing iron 72.

An elastic member, such as a torsion spring 66, is installed between the fixing iron connecting member 60 and the lower cover fixing iron 34. The second connection holes 604 correspond to the lower cover fixing holes 345. The fixing insertion holes 606 correspond to the lower cover coupling holes 344, and the first coupling holes 602 correspond to the upper cover fixing iron positioning holes 522. Three pins 64 are inserted into the corresponding fixing insertion holes 606 and the corresponding lower cover coupling holes 344, the corresponding second coupling holes 604 and the corresponding lower cover fixing holes 345, and the corresponding first coupling holes 602 and the corresponding upper cover fixing iron positioning holes 522, respectively. In addition, the shaft pin 64 passes through the second connecting hole 604 and the lower cover fixing hole 345 opposite to each other, and the first connecting hole 602 corresponds to the upper cover fixing iron positioning hole 522 opposite to each other, and also passes through the torsion spring 66. As a result, the fixed iron connecting member 60 is connected to the upper cover fixing iron 52, and the fixed iron connecting member 60 is connected to the lower cover fixing iron 34. The torsion spring 66 is located between the fixed iron connecting piece 60 and the lower cover fixed iron 34, and two ends of the torsion spring 66 respectively contact the lower cover fixed iron 34 and the fixed iron connecting piece 60.

Referring to fig. 10, when the upper cover movable piece 484 and the lower cover movable piece 302 are removed by a suitable tool, an upper cover preformed hole 485 is formed on at least one side, preferably both sides, of the upper cover 40, and a lower cover preformed hole 303 is formed on at least one side of the lower cover 30. The embodiment is preferred to be configured on both sides, and the upper cover preformed hole 485 and the lower cover preformed hole 303 are configured to form a conduit mounting hole 80. A grommet 82 is fitted into the grommet mounting hole 80.

Please refer to fig. 11, which shows the combination of the above components. When an external force is applied to press the surface of the upper cover 40, the fixed iron connecting member 60 swings and presses the torsion spring 66. In addition, the upper cover 40 presses and touches the elastic piece 24 on the switch 22, so that the electromagnetic lock (not shown) is unlocked, and the buzzer 26 makes a sound and the LED module 56 generates a light.

Referring to fig. 12, in a state that the upper cover 40 is pressed to unlock the electromagnetic lock (not shown), a user can further touch the transparent plate 50, and the light generated by the LED module 56 can penetrate through the transparent plate 50 and the transparent hole 46.

So that the operation of the present invention has the effect of stimulating multiple organs by the tactile sensation, visual sensation and sound sensation provided by the transparent plate 50, the LED module 56 and the buzzer 26.

Referring again to fig. 11, when the key 74 is rotated in the unlocked state, e.g., counterclockwise, the key anchor 72 rotates and is positioned below (in the orientation shown) the L-shaped fastener 346. When the restoring force of the torsion spring 66 acts on the top cover 40 indirectly, in an attempt to make the top cover 40 drive the key fixing iron 72 and the key 74 to move away from the base 10, the key fixing iron 72 abuts against the L-shaped fastener 346, so that the top cover 40 cannot return to the original position, i.e., the state of the push rod enables the electromagnetic lock to be in a normally open state.

Referring to fig. 13, when the key 74 is rotated clockwise, the key fixing iron 72 rotates, and the key fixing iron 72 releases the corresponding state with the L-shaped fastener 346, the restoring force of the torsion spring 66 indirectly acts on the upper cover 40, and the upper cover 40 drives the key fixing iron 72 and the key 74 to displace in a direction away from the base 10, so that the upper cover 40 returns to the initial position, i.e., the state of the push rod can release the normally open state of the electromagnetic lock and form the locked state.

Referring to fig. 14, according to the above description, the present invention can be disassembled into a plurality of independent components, so that the user can cut the base 10 and the upper cover 40 according to the requirement of the field and assemble the base and the upper cover, and the cut components can still be combined with each other according to the previous combination form without affecting the actual efficacy.

According to the above, the utility model discloses have and press touch, LED and instruct multiple different sensory stimulation such as light display and sound warning, so the range of application is extensive. Secondly, in an unobstructed space, a long-time unlock state can be forcibly activated using the key 74, thereby facilitating the user's entry and exit. In addition, the utility model discloses have this protecting wire pipe 82 and can reach the possibility that the circuit avoids the circuit to be pressed from both sides absolutely by the door to have an organic whole nature and aesthetic property concurrently. And the electronic switch and the mechanical switch are combined, and when the control of the electronic switch fails, the electronic switch is automatically converted into the output of the mechanical switch so as to maintain the basic function.

The above description is only illustrative and not restrictive, and the claimed invention is not to be limited to the above embodiments, but rather only to the embodiments. Any person skilled in the art can make equivalent embodiments with a few changes or modifications without departing from the scope of the present invention, but all the contents of the technical solutions of the present invention are still within the scope of the present invention.

Claims (12)

1. A push-rod switch, comprising:

a base having a receiving space;

two lower side covers installed at both ends of the base;

the warning module is arranged in the accommodating space and is provided with a switch;

the upper cover is provided with a containing part, the upper cover is movably arranged on the base, and the containing part corresponds to the containing space and the warning module;

two upper side covers installed at both ends of the upper cover, the upper side covers corresponding to the lower side covers;

wherein the cover and the switch are capable of moving towards the base and actuating the warning module.

2. The push rod switch of claim 1, wherein the alarm module comprises a buzzer, a circuit board and the switch, the switch is mounted on the circuit board and has a resilient piece, and the buzzer is electrically connected to the switch.

3. The push rod switch of claim 2, further comprising two positioning slots and two screw portions, wherein two opposite sides of the receiving space each have a wall surface, the two screw portions are convexly formed on inner surfaces of the two wall surfaces and are opposite to each other, the screw portions are of a strip structure and have an extending direction consistent with a longitudinal direction of the base, an axial inner portion of each screw portion is of a hollow structure, the hollow structure is used to form a screw hole, the two positioning slots are respectively formed between the two screw portions and a bottom surface of the receiving space, and two opposite sides of the circuit board are embedded into the two opposite screw holes.

4. The push rod switch of claim 1, further comprising a transparent plate, wherein the top cover has a transparent hole penetrating through a top surface of the top cover, and the transparent plate is disposed in the accommodating portion and opposite to the transparent hole and an LED module.

5. The push rod switch as claimed in claim 4, wherein the receiving portion of the top cover has an elongated locking portion on each of opposite sides thereof, a first recess is defined by a distance between each locking portion and the top surface of the receiving portion, the locking portion has a hollow structure in an axial direction for forming a screw fixing hole of the top cover, and the receiving portion has two first recesses therein.

6. The push rod switch as claimed in claim 1, further comprising an LED module mounted in the receiving portion of the top cover and electrically connected to the alarm module and controlled by the switch.

7. The push rod switch as claimed in claim 6, wherein each of two opposite sides of the receiving portion of the top cover has an elongated rib, a second groove is formed between each rib and the top surface of the receiving portion, two second grooves are formed in the receiving portion, and two sides of the LED module are mounted in the two opposite second grooves.

8. The push rod switch of claim 1, further comprising an elastic member disposed between the top cover and the base, wherein a restoring force of the elastic member is used to drive the top cover away from the base.

9. The push-rod switch of claim 8, further comprising a fixed iron connecting member, an upper cover fixed iron and a lower cover fixed iron, wherein the fixed iron connecting member has a first connecting hole, a second connecting hole and a fixed inserting hole on opposite sides thereof, the fixed inserting hole is an arc-shaped long hole and is located between the first connecting hole and the second connecting hole, the upper cover fixed iron is mounted on the upper cover, the upper cover fixed iron has two upper cover fixed iron positioning holes at one end thereof, the lower cover fixed iron is mounted on the base, two first pins and two second pins extend from both sides of the lower cover fixed iron, one of the first pins is opposite to the other first pin, one of the second pins is opposite to the other second pin, the two lower cover connecting holes are respectively formed on and opposite to the two second pins, and the two lower cover fixed holes are formed on and opposite to the first pins, the fixed iron connecting piece is arranged between the upper cover fixed iron and the lower cover fixed iron, the second connecting hole corresponds to the lower cover fixing hole, the fixed jack corresponds to the lower cover connecting hole, the first connecting hole corresponds to the upper cover fixed iron positioning hole, the elastic piece is a torsion spring and is arranged between the fixed iron connecting piece and the lower cover fixed iron, two ends of the torsion spring abut against the fixed iron connecting piece and the lower cover fixed iron, three shaft pins are respectively inserted into the corresponding fixed jack and the lower cover connecting hole, the corresponding second connecting hole and the lower cover fixing hole, the corresponding first connecting hole and the corresponding upper cover fixed iron positioning hole, and the two shaft pins also penetrate through the torsion spring.

10. The push-bar switch of claim 1, further comprising a locking assembly and a lower cover fixing iron, the lower cover fixing iron being mounted on the base and having an L-shaped fastener facing the upper cover, the locking assembly comprising a key fixing iron, a key and a key fixing block, the upper cover having a key hole, the key fixing block being inserted into the key hole of the upper cover, the key being engaged with the key fixing block, the key fixing block being located between the upper cover and the lower cover and connected to the key fixing iron, the key being rotated to rotate the key fixing iron so that the key fixing iron moves below the L-shaped fastener and away from the L-shaped fastener.

11. The push rod switch of claim 1, wherein the lower cover has a lower cover opening and the upper cover has an upper cover opening, and the upper cover is opposite to the lower cover, so that the lower cover opening and the upper cover opening form a conduit mounting opening.

12. The push rod switch of claim 11, further comprising a conduit, wherein the conduit is mounted in the conduit mounting hole.

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