CN111864483A

CN111864483A - Overload protector

Info

Publication number: CN111864483A
Application number: CN202010582201.2A
Authority: CN
Inventors: 傅群
Original assignee: Hangzhou Dongchan Temperature Control Equipment Co Ltd
Current assignee: Hangzhou Dongchan Temperature Control Equipment Co Ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2020-10-30

Abstract

The invention discloses an overload protector. The assembly body is internally provided with a metal elastic sheet and a control switch, one side of the metal elastic sheet is arranged in the assembly body, a first pin is fixed on the metal elastic sheet, the other side of the metal elastic sheet is arranged on the control switch, a switch through hole matched with the control switch is formed in the surface of the assembly body, the control switch is arranged in the switch through hole, a second pin is arranged in the assembly body, the second pin is arranged on the side surface of the metal elastic sheet, and the first pin and the second pin penetrate through the surface of the assembly body and are arranged outside the assembly body. The invention has the beneficial effects that: when the overload phenomenon occurs, the metal elastic sheet can automatically act to deform and separate from the second pin, so that the current is disconnected, the equipment is protected from being damaged, and the safety is high; the user can drive the metal elastic sheet to act through the control switch, the connection and the disconnection of the circuit are artificially controlled, and the control is very convenient.

Description

Overload protector

Technical Field

The invention relates to the technical field of plug correlation, in particular to an overload protector.

Background

A power plug refers to a device that connects a device such as an electrical appliance to a power source. At present, a common bipolar grounding plug, namely a three-pole plug, used in the market is used for being matched with a socket, when an electric appliance is not used, people usually pull out the plug, and some users forget or greet to save labor and do not pull out the plug, or in some cases, the plug is provided with conductive substances such as water stains and the like, so that danger can be generated during pulling out the plug; or the power switch of the electrical equipment is closed, and for the latter, the plug of the electrical equipment is always remained on the power socket and still consumes electric energy, at this time, the power part of the electrical equipment is still electrified, which is very unsafe, and in addition, for the electrical equipment without the switch, such as an electric cooker, an electric kettle and the like, the plug must be pulled out after each use, which is not only troublesome, but also influences the service life of the plug and the socket.

Particularly, when the electrical appliance is overloaded, the existing plug device has no automatic power-off device, cannot automatically break a circuit, and is easy to cause equipment damage and even fire, thereby bringing serious consequences.

Disclosure of Invention

The invention provides an overload protector which can automatically disconnect a circuit when an overload phenomenon occurs, in order to overcome the defect that equipment is damaged and even fire is caused when the circuit is overloaded in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

the overload protector comprises an assembly body, wherein a metal elastic sheet and a control switch are arranged in the assembly body, one side of the metal elastic sheet is arranged in the assembly body, a first pin is fixed on the metal elastic sheet, the other side of the metal elastic sheet is arranged on the control switch, a switch through hole matched with the control switch is formed in the surface of the assembly body, the control switch is arranged in the switch through hole, a second pin is arranged in the assembly body, the second pin is arranged on the side surface of the metal elastic sheet, and the first pin and the second pin penetrate through the surface of the assembly body and are arranged outside the assembly body.

The assembly body is internally provided with a metal elastic sheet and a control switch, one side of the metal elastic sheet is arranged in the assembly body and is fixedly provided with a first pin, the other side of the metal elastic sheet is arranged on the control switch, the surface of the assembly body is provided with a switch through hole matched with the control switch, the control switch is arranged in the switch through hole, a second pin is arranged in the assembly body and is arranged on the side surface of the metal elastic sheet, the first pin and the second pin both penetrate through the surface of the assembly body and are arranged outside the assembly body, and the first pin and the second pin are respectively connected with a power supply and equipment through wires; when the circuit is connected, the metal elastic sheet and the pin II are in a contact state, the current of the power supply sequentially flows into the equipment through the pin I, the metal elastic sheet and the pin II, and if the overload phenomenon occurs, the metal elastic sheet acts to deform and automatically separate from the pin II, so that the current is disconnected, and the equipment is protected from being damaged; in addition, a user can drive the metal elastic sheet to act through the control switch, the circuit is manually controlled to be switched on and off, and the control is very convenient.

As preferred, the shape of metal shrapnel is E shape, the top on two outside limits of metal shrapnel is all fixed on pin one, the distance at the top on two outside limits of metal shrapnel is less than the distance of two outside limits bottoms of metal shrapnel, the length of the inboard side of metal shrapnel is less than the length on the metal shrapnel outside limit and is fixed with the contact that matches with pin two on it, wherein pin one welds integrated into one piece on the metal shrapnel, when receiving external force and taking place deformation through the metal shrapnel that designs out like this, its inboard side can be automatic epirelief or recessed, realize the contact or the separation of contact and pin two, and then realize the intercommunication and the disconnection of circuit, its simple structure, the response is quick sensitive, it is also very convenient to control.

As preferred, the assembly body internal fixation has the installation piece, and the metal shrapnel is installed on the installation piece, and the assembly body is including assembling the base and assembling the upper cover, and the connection can be dismantled with the assembly upper cover to the assembly base, simple structure, easy installation, convenient operation, the maintenance in the later stage of being convenient for.

Preferably, the left side and the right side of the base are both fixed with a first vertical plate, a buckle is arranged at the top of the first vertical plate, a clamping groove matched with the buckle is formed in the upper assembling cover, the assembling base is clamped with the upper cover through the matching of the buckle and the clamping groove, a second vertical plate is fixed at the rear side of the assembling base, a first sliding groove is formed in the top of the second vertical plate, a first sliding block matched with the first sliding groove is arranged on the upper assembling cover, the upper cover is in sliding connection with the assembling base through the matching of the first sliding block and the first sliding groove, the mounting block is fixed on the second vertical plate, the connecting mode of the assembling base and the upper assembling cover can be a clamping mode of the clamping groove and the buckle, and the assembling base and; the first sliding block and the sliding groove have a positioning function together; the design can make metal shrapnel draw into the installation piece fixedly from the front side of base.

Preferably, the front side and the rear side of the assembly base are both fixed with vertical convex plates, the vertical convex plates are provided with second sliding grooves, the two sides of the assembly upper cover are fixed with vertical concave plates matched with the vertical convex plates, the vertical concave plates are fixed with second sliding blocks matched with the second sliding grooves, the assembly base is in sliding connection with the assembly upper cover through the matching of the second sliding grooves on the vertical convex plates and the second sliding blocks on the vertical concave plates, and the connection mode of the assembly base and the assembly upper cover can be the mutual assembly of the vertical convex plates and the vertical concave plates; the second sliding block and the second sliding groove play a positioning role.

Preferably, two sides of the bottom of the vertical convex plate are provided with a third threaded hole, the left side and the right side of the upper assembling cover are respectively fixed with a vertical cover plate perpendicular to the vertical convex plate, the bottom of the vertical cover plate is provided with a fourth threaded hole matched with the three-phase threaded hole, the assembling base is in threaded connection with the upper assembling cover through the matching of the third threaded hole on the vertical convex plate and the fourth threaded hole on the vertical cover plate, the switch through hole is positioned on the upper assembling cover, and the mounting block is fixed between the two vertical convex plates on the assembling base; the design can make metal shrapnel slide into the installation block from the left and right sides of base and fix.

Preferably, a side mounting groove is formed between the mounting block and the assembly base, the metal elastic sheet is mounted in the side mounting groove and is in sliding connection with the side mounting groove, the side mounting groove comprises a pin groove matched with the first pin and an inner groove matched with the contact head, one end of the first pin is mounted on the pin groove, the other end of the first pin is arranged outside the assembly body, the contact head is arranged inside the inner groove, a second pin mounting hole matched with the second pin is formed in the side wall of the assembly body and is communicated with the bottom of the inner groove, one end of the second pin is mounted at the bottom of the inner groove through the second pin mounting hole, the other end of the second pin is arranged outside the assembly body, one side of the metal elastic sheet with the first pin is fixed on the pin groove, and when an overload phenomenon occurs to a circuit or a user deforms the metal elastic sheet through a control switch, the contact head on the metal elastic sheet can jump up and down in, and the contact and separation are carried out with a second pin at the bottom of the inner groove, so that the connection and disconnection of a circuit are realized, the control is convenient, and the sensitivity is high.

Preferably, the control switch comprises a button seat, a button seat sliding groove is arranged on the lower end face of the button seat, an installation block sliding rail matched with the button seat sliding groove is fixed on the top of the installation block, the button seat is installed on the top of the installation block through the matching of the button seat sliding groove and the installation block sliding rail and is in sliding connection with the installation block, a fixing plate is fixed on the bottom of the side face of the button seat, an installation clamping groove matched with the metal elastic sheet is arranged on the fixing plate, the other side of the metal elastic sheet penetrates through the side installation groove to be installed on the installation clamping groove, the control switch can be in a button control mode, a user can push or pull the button seat to enable the button seat to slide up and down on, then, the fixing plate drives the metal elastic sheet to stir, so that the contact head on the metal elastic sheet is contacted with or separated from the pin II, the connection or disconnection of a circuit is controlled, and the structure is simple and the assembly is convenient.

As preferred, control switch includes the key seat, the key seat is installed at the top of installation piece and is connected with the rotation of installation piece, the bottom of key seat side is equipped with the rotor plate, the one end of rotor plate is installed on the key seat and is connected with the key seat rotation, the other end of rotor plate be equipped with metal shrapnel assorted shell fragment draw-in groove, metal shrapnel's the other end passes the side mounting groove and installs on the shell fragment draw-in groove, control switch also can be button control mode, the user is through the both sides of pressing the key seat, make the rotor plate on it drive metal shrapnel and stir, make contact head and the contact of pin two on the metal shrapnel or separately, and then control circuit.

As preferred, the lower terminal surface of key base is fixed with installation riser one, the bottom of installation riser one is equipped with mounting groove, the width of installation recess bottom is less than the width of installation groove opening part, the top of installation piece is fixed with the installation riser two with installation riser mutually perpendicular, installation riser two is arranged in the mounting groove, the key base is installed on the installation piece and is rotated with the installation piece through the cooperation of the installation recess on the installation riser one and installation riser two and be connected, moreover, the steam generator is simple in structure, and convenient for assembly, wherein the top of vertical board one and the bottom of installation recess can be set to circular-arc of mutually supporting, in order to reduce wearing and tearing, roundness and travelling comfort when further having increased the button.

The invention has the beneficial effects that: when the overload phenomenon occurs, the metal elastic sheet automatically acts to deform and is separated from the second pin, so that the current is disconnected, the equipment is protected from being damaged, and the safety is high; the user can drive the metal elastic sheet to act through the control switch, the connection and the disconnection of the circuit are artificially controlled, and the control is very convenient.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of a first embodiment of the present invention;

FIG. 3 is a top view of a first embodiment of the present invention;

FIG. 4 is a rear view of a first embodiment of the present invention;

FIG. 5 is a schematic structural view of the mounting base of FIG. 4;

FIG. 6 is a schematic view of the structure of FIG. 4 with the upper cover assembled;

FIG. 7 is a front view of a second embodiment of the present invention;

FIG. 8 is a top view of a second embodiment of the present invention;

FIG. 9 is a rear view of a second embodiment of the present invention;

FIG. 10 is a schematic view of the structure of the mounting base of FIG. 9;

FIG. 11 is a schematic view of the structure of FIG. 9 with the upper cover assembled;

FIG. 12 is an assembled view of the metal dome and mounting block;

FIG. 13 is an enlarged view at A in FIG. 12;

FIG. 14 is a view showing the connection between the metal dome and the button base;

fig. 15 is a connection diagram of the metal dome and the key base;

fig. 16 is a schematic structural diagram of a metal dome.

In the figure: 1. the assembly structure comprises an assembly body, 2 parts of a second pin, 3 parts of a first pin, 4 parts of a switch through hole, 5 parts of an assembly upper cover, 6 parts of an assembly base, 7 parts of a second vertical plate, 8 parts of a first sliding chute, 9 parts of an installation block, 10 parts of a second pin installation hole, 11 parts of a buckle, 12 parts of a first vertical plate, 13 parts of a clamping groove, 14 parts of a first sliding block, 15 parts of a first vertical convex plate, 16 parts of a second sliding chute, 17 parts of a third threaded hole, 18 parts of a third vertical concave plate, 19 parts of a second sliding block, 20 parts of a vertical cover plate, 21 parts of a fourth threaded hole, 22 parts of a side installation groove, 23 parts of a pin groove, 24 parts of a metal elastic sheet, 25 parts of an inner groove, 26 parts of a contact head, 27 parts of a control switch, 28 parts of a button seat, 29 parts of a sliding chute of the button seat, 30 parts of a sliding rail, 31 parts of an installation clamping groove, 32 parts of a fixing plate.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

As shown in fig. 1, an overload protector, including assembly body 1, as shown in fig. 14 and 15, assembly body 1 is equipped with metal shrapnel 24 and control switch 27, as shown in fig. 12 and 13, one side of metal shrapnel 24 is installed in assembly body 1 and is fixed with pin one 3 thereon, the other side of metal shrapnel 24 is installed on control switch 27, be equipped with on the surface of assembly body 1 with control switch 27 assorted switch through-hole 4, control switch 27 is arranged in switch through-hole 4, install pin two 2 in assembly body 1, pin two 2 is arranged in the side of metal shrapnel 24, pin one 3 and pin two 2 all run through the surface of assembly body 1 and arrange in assembly body 1 outside.

As shown in fig. 16, the shape of the metal elastic sheet 24 is E-shaped, the tops of two outer sides of the metal elastic sheet 24 are fixed on the first pin 3, the distance between the tops of two outer sides of the metal elastic sheet 24 is smaller than the distance between the bottoms of two outer sides of the metal elastic sheet 24, the length of the inner side of the metal elastic sheet 24 is smaller than the length of the outer side of the metal elastic sheet 24, and a contact 26 matched with the second pin 2 is fixed on the inner side of the metal elastic sheet.

As shown in fig. 5 and 10, the assembly body 1 is internally fixed with the mounting block 9, and the metal elastic sheet 24 is mounted on the mounting block 9, as shown in fig. 4 and 9, the assembly body 1 includes an assembly base 6 and an assembly upper cover 5, and the assembly base 6 is detachably connected with the assembly upper cover 5.

As shown in fig. 5 and 6, vertical plates (12) are fixed on the left side and the right side of the assembly base 6, a buckle (11) is arranged at the top of each vertical plate (12), a clamping groove (13) matched with the buckle (11) is arranged on the assembly upper cover (5), the assembly base 6 is clamped with the assembly upper cover (5) through the matching of the buckle (11) and the clamping groove (13), a vertical plate (7) is fixed on the rear side of the assembly base 6, a sliding groove (8) is arranged at the top of the vertical plate (7), a sliding block (14) matched with the sliding groove (8) is arranged on the assembly upper cover (5), the assembly upper cover (5) is in sliding connection with the assembly base (6) through the matching of the sliding.

As shown in fig. 10 and 11, vertical protruding plates 15 are fixed on the front side and the rear side of the assembly base 6, sliding grooves two 16 are formed in the vertical protruding plates 15, vertical concave plates 18 matched with the vertical protruding plates 15 are fixed on the two sides of the assembly upper cover 5, sliding blocks two 19 matched with the sliding grooves two 16 are fixed on the vertical concave plates 18, and the assembly base 6 is in sliding connection with the assembly upper cover 5 through the matching of the sliding grooves two 16 on the vertical protruding plates 15 and the sliding blocks two 19 on the vertical concave plates 18.

As shown in fig. 10 and 11, two sides of the bottom of the vertical protruding plate 15 are provided with a third threaded hole 17, the left side and the right side of the assembly upper cover 5 are respectively fixed with a vertical cover plate 20 perpendicular to the vertical protruding plate 15, the bottom of the vertical cover plate 20 is provided with a fourth threaded hole 21 matched with the third threaded hole 17, the assembly base 6 is in threaded connection with the assembly upper cover 5 through the matching of the third threaded hole 17 on the vertical protruding plate 15 and the fourth threaded hole 21 on the vertical cover plate 20, the switch through hole 4 is located on the assembly upper cover 5, and the mounting block 9 is fixed between the two vertical protruding plates 15 on the assembly base 6.

As shown in fig. 12 and 13, a side mounting groove 22 is formed between the mounting block 9 and the mounting base 6, the metal elastic sheet 24 is mounted in the side mounting groove 22 and slidably connected to the side mounting groove 22, the side mounting groove 22 includes a pin groove 23 matched with the first pin 3 and an inner groove 25 matched with the contact head 26, one end of the first pin 3 is mounted on the pin groove 23, the other end of the first pin 3 is disposed outside the mounting body 1, the contact head 26 is disposed inside the inner groove 25, a second pin mounting hole 10 matched with the second pin 2 is formed in a side wall of the mounting body 1, the second pin mounting hole 10 is communicated with the bottom of the inner groove 25, one end of the second pin 2 is mounted at the bottom of the inner groove 25 through the second pin mounting hole 10, and the other end of the second pin 2 is disposed outside the mounting body 1.

As shown in fig. 14, the control switch 27 includes a button seat 28, a button seat sliding slot 29 is disposed on a lower end surface of the button seat 28, an installation block sliding rail 30 matched with the button seat sliding slot 29 is fixed on the top of the installation block 9, the button seat 28 is installed on the top of the installation block 9 through the matching of the button seat sliding slot 29 and the installation block sliding rail 30 and is slidably connected with the installation block 9, a fixing plate 32 is fixed on the bottom of a side surface of the button seat 28, an installation slot 31 matched with the metal elastic sheet 24 is disposed on the fixing plate 32, and the other side of the metal elastic sheet 24 passes through the side installation slot 22 and is installed on the installation.

As shown in fig. 15, the control switch 27 includes a key base 33, the key base 33 is installed at the top of the installation block 9 and is rotatably connected with the installation block 9, a rotation plate 38 is arranged at the bottom of the side surface of the key base 33, one end of the rotation plate 38 is installed on the key base 33 and is rotatably connected with the key base 33, an elastic sheet clamping groove 37 matched with the metal elastic sheet 24 is arranged at the other end of the rotation plate 38, and the other end of the metal elastic sheet 24 penetrates through the side installation groove 22 and is installed on the elastic sheet clamping groove 37.

As shown in fig. 15, a first installation riser 12 is fixed on the lower end surface of the key base 33, an installation groove 36 is formed in the bottom of the first installation riser 34, the width of the bottom of the installation groove 36 is smaller than the width of an opening of the installation groove 36, a second installation riser 35 perpendicular to the first installation riser 34 is fixed on the top of the installation block 9, the second installation riser 35 is placed in the installation groove 36, and the key base 33 is installed on the installation block 9 through the cooperation of the installation groove 36 on the first installation riser 34 and the second installation riser 35 and is rotatably connected with the installation block 9.

In the embodiment shown in fig. 2, 3, 4, 5 and 6, the mounting manner between the assembly base 6 and the assembly upper cover 5 may be a snap-fit manner, the metal elastic sheet 24 may be inserted into the mounting block 9 from the front side of the assembly base 6 for fixing, and then the assembly upper cover 5 is assembled with the assembly base 6 through the cooperation of the first sliding block 14 and the first sliding slot 8, and is fixed through the cooperation of the snap 11 on the first vertical plate and the snap groove 13 on the assembly upper cover 5.

In the embodiment shown in fig. 7, 8, 9, 10 and 11, the mounting manner between the assembly base 6 and the assembly upper cover 5 may be a threaded connection manner, the metal elastic pieces 24 may slide into the mounting blocks 9 from the left and right sides of the assembly base 6 for fixing, and then the assembly upper cover 5 is assembled with the assembly base 6 through the cooperation of the sliding grooves two 16 on the vertical convex plate 15 and the sliding blocks two 19 on the vertical concave plate 18, and the threaded holes three 17 on the vertical convex plate 15 and the threaded holes four 21 on the vertical cover plate 20 are aligned and tightened by fastening bolts.

In the embodiment shown in fig. 14, the control switch 27 may be a button control type, and a user presses or pulls the button seat 28 to slide the button seat 28 up and down on the mounting block slide rail 30 at the top of the mounting block 9, and then drives the metal elastic sheet 24 to move through the fixing plate 32, so that the contact 26 on the metal elastic sheet 24 is contacted with or separated from the pin two 2.

In the embodiment shown in fig. 15, the control switch 27 can be a key control manner, and a user presses two sides of the key base 33 to rotate the key base 33 back and forth on the second mounting riser 35 at the top of the mounting block 9 through the mounting groove 36 on the first mounting riser 34, and then drives the metal elastic sheet 24 to toggle through the rotating plate 38, so that the contact 26 on the metal elastic sheet 24 is in contact with or separated from the second pin 2, thereby controlling the connection or disconnection of the circuit.

Claims

1. The utility model provides an overload protector, characterized by, includes assembly body (1), assembly body (1) is equipped with metal shrapnel (24) and control switch (27), one side of metal shrapnel (24) is installed in assembly body (1) and is fixed with pin (3) on it, the opposite side of metal shrapnel (24) is installed on control switch (27), the assembly body (1) be equipped with on the surface with control switch (27) assorted switch through-hole (4), control switch (27) are arranged in switch through-hole (4), install pin two (2) in assembly body (1), the side of metal shrapnel (24) is arranged in to pin two (2), pin one (3) and pin two (2) all run through the surface of assembly body (1) and arrange assembly body (1) outside in.

2. An overload protector according to claim 1, wherein the metal spring (24) is E-shaped, the tops of two outer sides of the metal spring (24) are fixed to the first pin (3), the distance between the tops of two outer sides of the metal spring (24) is less than the distance between the bottoms of two outer sides of the metal spring (24), the length of the inner side of the metal spring (24) is less than the length of the outer side of the metal spring (24), and the contact head (26) matched with the second pin (2) is fixed on the metal spring.

3. An overload protector according to claim 1, wherein a mounting block (9) is fixed in the assembly body (1), the metal elastic sheet (24) is mounted on the mounting block (9), the assembly body (1) comprises an assembly base (6) and an assembly upper cover (5), and the assembly base (6) and the assembly upper cover (5) are detachably connected.

4. An overload protector according to claim 3, in which vertical plates (12) are fixed to the right and left sides of the mounting base (6), the top of the vertical plate I (12) is provided with a buckle (11), the assembly upper cover (5) is provided with a clamping groove (13) matched with the buckle (11), the assembly base (6) is clamped with the assembly upper cover (5) through the matching of a buckle (11) and a clamping groove (13), a second vertical plate (7) is fixed on the rear side of the assembly base (6), a first sliding groove (8) is arranged at the top of the second vertical plate (7), a first sliding block (14) matched with the first sliding groove (8) is arranged on the assembly upper cover (5), the assembling upper cover (5) is in sliding connection with the assembling base (6) through the matching of the first sliding block (14) and the first sliding groove (8), and the mounting block (9) is fixed on the second vertical plate (7).

5. An overload protector according to claim 3, wherein the front side and the rear side of the assembly base (6) are both fixed with vertical convex plates (15), the vertical convex plates (15) are provided with second sliding grooves (16), the two sides of the assembly upper cover (5) are fixed with vertical concave plates (18) matched with the vertical convex plates (15), the vertical concave plates (18) are fixed with second sliding blocks (19) matched with the second sliding grooves (16), and the assembly base (6) is in sliding connection with the assembly upper cover (5) through the matching of the second sliding grooves (16) on the vertical convex plates (15) and the second sliding blocks (19) on the vertical concave plates (18).

6. An overload protector according to claim 5, wherein the two sides of the bottom of the vertical protruding plate (15) are provided with a third threaded hole (17), the left side and the right side of the assembly upper cover (5) are respectively fixed with a vertical cover plate (20) perpendicular to the vertical protruding plate (15), the bottom of the vertical cover plate (20) is provided with a fourth threaded hole (21) matched with the third threaded hole (17), the assembly base (6) is in threaded connection with the assembly upper cover (5) through the matching of the third threaded hole (17) on the vertical protruding plate (15) and the fourth threaded hole (21) on the vertical cover plate (20), the switch through hole (4) is positioned on the assembly upper cover (5), and the mounting block (9) is fixed between the two vertical protruding plates (15) on the assembly base (6).

7. An overload protector according to claim 2 or 3, wherein a side mounting groove (22) is formed between the mounting block (9) and the mounting base (6), the metal elastic sheet (24) is mounted in the side mounting groove (22) and slidably connected with the side mounting groove (22), the side mounting groove (22) comprises a pin groove (23) matched with the first pin (3) and an inner groove (25) matched with the contact head (26), one end of the first pin (3) is mounted on the pin groove (23), the other end of the first pin (3) is arranged outside the mounting body (1), the contact head (26) is arranged inside the inner groove (25), a second pin mounting hole (10) matched with the second pin (2) is formed in the side wall of the mounting body (1), and the second pin mounting hole (10) is communicated with the bottom of the inner groove (25), one end of the second pin (2) is installed at the bottom of the inner groove (25) through the second pin installation hole (10), and the other end of the second pin (2) is arranged outside the assembling body (1).

8. The overload protector according to claim 1, wherein the control switch (27) comprises a button base (28), a button base sliding groove (29) is formed in the lower end face of the button base (28), a mounting block sliding rail (30) matched with the button base sliding groove (29) is fixed to the top of the mounting block (9), the button base (28) is mounted on the top of the mounting block (9) through the matching of the button base sliding groove (29) and the mounting block sliding rail (30) and is in sliding connection with the mounting block (9), a fixing plate (32) is fixed to the bottom of the side face of the button base (28), a mounting clamping groove (31) matched with the metal elastic sheet (24) is formed in the fixing plate (32), and the other side of the metal elastic sheet (24) penetrates through the side mounting groove (22) and is mounted on the mounting clamping groove (31).

9. An overload protector according to claim 1, wherein the control switch (27) includes a key base (33), the key base (33) is mounted on the top of the mounting block (9) and rotatably connected with the mounting block (9), a rotating plate (38) is disposed at the bottom of the side surface of the key base (33), one end of the rotating plate (38) is mounted on the key base (33) and rotatably connected with the key base (33), the other end of the rotating plate (38) is provided with a spring plate clamping groove (37) matched with the metal spring plate (24), and the other end of the metal spring plate (24) passes through the side mounting groove (22) and is mounted on the spring plate clamping groove (37).

10. An overload protector according to claim 9, wherein a first installation riser (12) is fixed to the lower end face of the key base (33), a first installation riser (34) is provided with an installation groove (36) in the bottom, the width of the bottom of the installation groove (36) is smaller than the width of the opening of the installation groove (36), a second installation riser (35) perpendicular to the first installation riser (34) is fixed to the top of the installation block (9), the second installation riser (35) is arranged in the installation groove (36), and the key base (33) is installed on the installation block (9) through the cooperation of the installation groove (36) in the first installation riser (34) and the second installation riser (35) and is rotatably connected with the installation block (9).