Dual-purpose power supply connector of electric tool

Abstract

The utility model relates to the field of electric tools, in particular to a dual-purpose power supply connector of an electric tool, which comprises an electric appliance for the electric tool, a first plug, a second plug and a power supply switching device, the first plug is connected with a first cable, the second plug is connected with a second cable, the electric appliance for the electric tool is connected with a third cable, the power supply switching device comprises a shell and a plug change-over switch, and the first cable, the second cable and the third cable penetrate through the shell and are connected with the plug change-over switch; the plug change-over switch is configured to be capable of switching between the following two stations: a station I, the first plug is electrically connected with the electric appliance for the electric tool, and a station II, the second plug is electrically connected with the electric appliance for the electric tool; the utility model solves the problem that the power consumption scene of the electric tool is limited.

Description

Technical Field

[0001] The utility model relates to the field of electric tools, in particular to a dual-purpose power supply connector for electric tools. Background Art

[0002] Power tools are generally handheld small and medium-sized processing equipment, widely used in various industries such as construction and gardening;

[0003] The power supply methods of existing power tools are generally divided into built-in power supply method and external power supply method. Since external power supply power tools need to be carried outside frequently and the outdoor power usage scenarios are uncertain, the power tools on the market are only equipped with a single plug. It is easy for the plug and the socket to be incompatible with different socket types, which makes the power usage scenarios of the power tools very limited. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a dual-purpose power supply connector for an electric tool, which solves the problem of limited power usage scenarios of the electric tool.

[0005] The technical solution adopted by the utility model is: a dual-purpose power supply connector for an electric tool, comprising an electric tool appliance, a first plug, a second plug and a power switching device, wherein the first plug and the second plug are of different models; a first cable is connected to the first plug, a second cable is connected to the second plug, and a third cable is connected to the electric tool appliance; the power switching device comprises a shell and a plug switching switch, the first cable, the second cable and the third cable pass through the shell and are connected to the plug switching switch; the plug switching switch is configured to be able to switch between the following two workstations: workstation one, the first plug is electrically connected to the electric tool appliance, and workstation two, the second plug is electrically connected to the electric tool appliance.

[0006] Through the above technical solution, a single power tool appliance is connected with a first plug and a second plug of different models. When the user takes the power tool out for use, the user can plug it into a socket compatible with the first plug for power supply, or plug it into a socket compatible with the second plug for power supply. The power usage scenarios of the power tool appliance are wide, and the use is more convenient. The plug switching switch is used to switch the electrical connection between the power tool appliance and the first plug or the second plug. When the power tool appliance is in the first working position, no current passes through the second plug, and when the power tool is in the second working position, no current passes through the first plug, thereby avoiding electric shock to the user during use, making it safer to use.

[0007] Further, a first annular groove is provided on the first cable line, a second annular groove is provided on the second cable line, and a third annular groove is provided on the third cable line. The shell includes a first half shell and a second half shell. The edge of the first half shell and the edge of the second half shell are jointly spliced ​​to form a first mounting hole, a second mounting hole and a third mounting hole. The first mounting hole and the first annular groove are interlocked, the second mounting hole and the second annular groove are interlocked, and the third mounting hole and the third annular groove are interlocked.

[0008] Through the above technical solution, the connection state between the first cable, the second cable and the third cable and the housing is made more stable and firm, thereby increasing the service life of the utility model.

[0009] Furthermore, the plug switching switch includes a base, a metal seesaw and a driving plate, the driving plate is rotatably connected to the base, a mounting tube is arranged on the driving plate, an elastic member and a top block are arranged in the mounting tube, and the elastic member tends to press the top block against the surface of the metal seesaw; the plug switching switch includes a first normal contact terminal and a first contact terminal and a second contact terminal respectively arranged on both sides of the first normal contact terminal, and a second normal contact terminal and a third contact terminal and a fourth contact terminal respectively arranged on both sides of the second normal contact terminal, the first contact terminal and the third contact terminal are relative to the first normal contact terminal and the second normal contact terminal. Biased in the same direction; two metal seesaws are correspondingly arranged and each of them pivots around the first normal contact terminal and the second normal contact terminal; the first cable includes a first live wire and a first neutral wire, the second cable includes a second live wire and a second neutral wire, the third cable includes a third live wire, a fourth live wire and a third neutral wire, the first neutral wire, the second neutral wire and the third neutral wire are connected to each other, the third live wire is connected to the first normal contact terminal, the fourth live wire is connected to the second normal contact terminal, the first live wire is connected to the first contact terminal, and the second live wire is connected to the fourth contact terminal.

[0010] Through the above technical solution, the user can push the driving plate to tilt to one side to drive the metal seesaw to tilt to one side. When the two metal seesaws contact the first contact terminal and the third contact terminal respectively at the same time, the user can use the first plug external power supply to power them. When the two metal seesaws contact the second contact terminal and the fourth contact terminal respectively at the same time, the user can use the second plug external power supply to power them.

[0011] Furthermore, the first normal contact terminal and the second normal contact terminal are both provided with a tip portion, the metal seesaw comprises an arc segment, a curved segment and a contact segment, the curved segment is in an inverted V shape and is engaged with the tip portion.

[0012] Through the above technical solution, the cooperation between the bending section and the tip portion makes the connection state between the metal seesaw and the first normal contact terminal more stable, avoiding the poor contact between the metal seesaw and the tip portion when in use. The setting of the arc segment makes the top block move more smoothly in the length direction of the arc segment, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0014] Figure 1 It is one of the partial structural schematic diagrams of the utility model;

[0015] Figure 2 This is the second schematic diagram of the partial structure of the utility model;

[0016] Figure 3 This is the third schematic diagram of the partial structure of the utility model;

[0017] Figure 4 It is a schematic diagram of a power switching device of the utility model;

[0018] Figure 5 This is an exploded view of the plug switch of the utility model;

[0019] Figure 6 It is a schematic diagram of the metal seesaw of the utility model;

[0020] Figure 7 It is the circuit principle diagram of the utility model;

[0021] The utility model number information is as follows:

[0022] 1. Electric tools; 2. First plug; 3. Second plug; 4. First cable; 5. Second cable; 6. Third cable; 7. Shell; 8. Plug switch; 9. First annular groove; 10. Second annular groove; 11. Third annular groove; 41. First live wire; 42. First neutral wire; 51. Second live wire; 52. Second neutral wire; 61. Third live wire; 62. Fourth live wire; 63. Third neutral wire; 71. First half shell; 72. Second half shell; 73. First safety mounting hole; 74, second mounting hole; 75, third mounting hole; 801, base; 802, metal seesaw; 803, drive plate; 804, mounting tube; 805, elastic member; 806, top block; 807, first normal contact terminal; 808, first contact terminal; 809, second contact terminal; 810, second normal contact terminal; 811, third contact terminal; 812, fourth contact terminal; 813, tip; 814, arc segment; 815, curved segment; 816, contact segment;

[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] refer to Figure 1 , 27. A dual-purpose power supply connector for an electric tool comprises an electric tool appliance 1, a first plug 2, a second plug 3 and a power switching device, wherein the first plug 2 and the second plug 3 are of different models; a first cable 4 is connected to the first plug 2, a second cable 5 is connected to the second plug 3, and a third cable 6 is connected to the electric tool appliance 1; the power switching device comprises a shell 7 and a plug switching switch 8, the first cable 4, the second cable 5 and the third cable 6 pass through the shell 7 and are connected to the plug switching switch 8; the plug switching switch 8 is configured to be able to switch between the following two workstations: workstation one, the first plug 2 is electrically connected to the electric tool appliance 1, and workstation two, the second plug 3 is electrically connected to the electric tool appliance 1.

[0028] A single electric tool appliance 1 is connected with a first plug 2 and a second plug 3 of different models. When the user carries the electric tool outside for use, the user can plug it into a socket compatible with the first plug 2 for power supply, or plug it into a socket compatible with the second plug 3 for power supply. The power usage scenarios of the electric tool appliance 1 are wide, and the use is more convenient. The plug switching switch 8 is used to switch the electrical connection between the electric tool appliance 1 and the first plug 2 or the second plug 3. When it is in the first position, no current passes through the second plug 3, and when it is in the second position, no current passes through the first plug 2, so as to avoid electric shock to the user during use, making it safer to use.

[0029] Preferably, the first plug 2 is of NEMA 1-15P type, and the second plug 3 is of IEC C13 type. There are various types of power tools, and power tools are mainly divided into metal cutting power tools, grinding power tools, assembly power tools, and railway power tools. Common power tools include electric drills, electric grinders, electric wrenches and electric screwdrivers, electric hammers and impact drills, concrete vibrators, and electric planers. The power tool electrical appliance 1 of the utility model can be any one of them. The selection of the power tool electrical appliance 1 is not the focus of this patent and will not be repeated here.

[0030] refer to Figure 1-Figure 4 A first annular groove 9 is provided on the first cable line 4, a second annular groove 10 is provided on the second cable line 5, and a third annular groove 11 is provided on the third cable line 6. The shell 7 includes a first half shell 71 and a second half shell 72. The edge of the first half shell 71 and the edge of the second half shell 72 are jointly spliced ​​to form a first mounting hole 73, a second mounting hole 74 and a third mounting hole 75. The first mounting hole 73 is embedded in the first annular groove 9, the second mounting hole 74 is embedded in the second annular groove 10, and the third mounting hole 75 is embedded in the third annular groove 11.

[0031] The connection state between the first cable 4, the second cable 5 and the third cable 6 and the housing 7 is made more stable and firm, thereby increasing the service life of the utility model.

[0032] refer to Figure 2-Figure 7 The plug switching switch 8 includes a base 801, a metal seesaw 802 and a driving plate 803, the driving plate 803 is rotatably connected to the base 801, a mounting tube 804 is arranged on the driving plate 803, an elastic member 805 and a top block 806 are arranged in the mounting tube 804, and the elastic member 805 tends to press the top block 806 against the surface of the metal seesaw 802; the plug switching switch 8 includes a first normal contact terminal 807 and a first contact terminal 808 and a second contact terminal 809 respectively arranged on both sides of the first normal contact terminal 807, and a second normal contact terminal 810 and a third contact terminal 811 and a fourth contact terminal 812 respectively arranged on both sides of the second normal contact terminal 810, the first contact terminal 808 and the third contact terminal 811 are relative to the first normal contact terminal The terminal 807 and the second normal contact terminal 810 are biased in the same direction; two metal seesaws 802 are correspondingly arranged and they respectively swing around the first normal contact terminal 807 and the second normal contact terminal 810; the first cable line 4 includes a first live wire 41 and a first neutral wire 42, the second cable line 5 includes a second live wire 51 and a second neutral wire 52, the third cable line 6 includes a third live wire 61, a fourth live wire 62 and a third neutral wire 63, the first neutral wire 42, the second neutral wire 52 and the third neutral wire 63 are connected to each other, the third live wire 61 is connected to the first normal contact terminal 807, the fourth live wire 62 is connected to the second normal contact terminal 810, the first live wire 41 is connected to the first contact terminal 808, and the second live wire 51 is connected to the fourth contact terminal 812.

[0033] The user pushes the driving plate 803 to tilt to one side to drive the metal seesaw 802 to tilt to one side. When the two metal seesaws 802 contact the first contact terminal 808 and the third contact terminal 811 respectively at the same time, the user can use the first plug 2 to connect the external power supply for power supply. When the two metal seesaws 802 contact the second contact terminal 809 and the fourth contact terminal 812 respectively at the same time, the user can use the second plug 3 to connect the external power supply for power supply.

[0034] Preferably, the elastic member 805 is a spring.

[0035] Preferably, the first normal contact terminal 807 , the second normal contact terminal 810 , the first contact terminal 808 , the second contact terminal 809 , the third contact terminal 811 , and the fourth contact terminal 812 are all made of copper.

[0036] A tip portion 813 is disposed on both the first normal contact terminal 807 and the second normal contact terminal 810 . The metal seesaw 802 includes an arc segment 814 , a curved segment 815 and a contact segment 816 . The curved segment 815 is in an inverted V shape and is engaged with the tip portion 813 .

[0037] The coordination of the curved section 815 and the tip portion 813 makes the connection between the metal seesaw 802 and the first normal contact terminal 807 more stable, thus avoiding poor contact between the metal seesaw 802 and the tip portion 813 during use. The setting of the arc section 814 makes the top block 806 move more smoothly in the length direction of the arc section 814, making it more convenient to use.

[0038] Preferably, two pointed ends 813 are symmetrically arranged on the first normal contact terminal 807 , two pointed ends 813 are symmetrically arranged on the second normal contact terminal 810 , and the bent sections 815 are symmetrically arranged on both sides of the metal seesaw 802 , so that the force on the metal seesaw 802 is more uniform.

[0039] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A dual-purpose power supply connector for an electric tool, characterized in that: The invention comprises an electric tool appliance (1), a first plug (2), a second plug (3) and a power switching device, wherein the first plug (2) and the second plug (3) are of different models; the first plug (2) is connected to a first cable (4), the second plug (3) is connected to a second cable (5), and the electric tool appliance (1) is connected to a third cable (6); the power switching device comprises a housing (7) and a plug switching switch (8); the first cable (4), the second cable (5) and the third cable (6) pass through the housing (7) and are connected to the plug switching switch (8); the plug switching switch (8) is configured to be able to switch between the following two workstations: workstation one, in which the first plug (2) is electrically connected to the electric tool appliance (1); and workstation two, in which the second plug (3) is electrically connected to the electric tool appliance (1).

2. A dual-purpose power supply connector for an electric tool according to claim 1, characterized in that: The first cable (4) is provided with a first annular groove (9), the second cable (5) is provided with a second annular groove (10), and the third cable (6) is provided with a third annular groove (11). The shell (7) comprises a first half shell (71) and a second half shell (72). The edge of the first half shell (71) and the edge of the second half shell (72) are combined to form a first mounting hole (73), a second mounting hole (74) and a third mounting hole (75). The first mounting hole (73) is fitted with the first annular groove (9), the second mounting hole (74) is fitted with the second annular groove (10), and the third mounting hole (75) is fitted with the third annular groove (11).

3. A dual-purpose power supply connector for an electric tool according to claim 1 or 2, characterized in that: The plug switching switch (8) comprises a base (801), a metal seesaw (802) and a driving plate (803), wherein the driving plate (803) is rotatably connected to the base (801), a mounting tube (804) is arranged on the driving plate (803), an elastic member (805) and a top block (806) are arranged in the mounting tube (804), and the elastic member (805) causes the top block (806) to press against the surface of the metal seesaw (802); the plug switching switch (8) comprises a first normal contact terminal (807), a first contact terminal (808) and a second contact terminal (809) respectively arranged on both sides of the first normal contact terminal (807), and a second normal contact terminal (810) and a third contact terminal (811) and a fourth contact terminal (812) respectively arranged on both sides of the second normal contact terminal (810), wherein the first contact terminal (808) and the third contact terminal (811) are arranged relative to the first normal contact terminal (807). ) and the second normal contact terminal (810) are biased in the same direction; two metal seesaws (802) are correspondingly arranged and each of them moves around the first normal contact terminal (807) and the second normal contact terminal (810); the first cable (4) includes a first live wire (41) and a first neutral wire (42); the second cable (5) includes a second live wire (51) and a second neutral wire (52); the third cable (6) includes a third live wire (61), a fourth live wire (62) and a third neutral wire (63); the first neutral wire (42), the second neutral wire (52) and the third neutral wire (63) are connected to each other; the third live wire (61) is connected to the first normal contact terminal (807); the fourth live wire (62) is connected to the second normal contact terminal (810); the first live wire (41) is connected to the first contact terminal (808); and the second live wire (51) is connected to the fourth contact terminal (812).

4. A dual-purpose power supply connector for an electric tool according to claim 3, characterized in that: The first normal contact terminal (807) and the second normal contact terminal (810) are both provided with a tip portion (813), the metal seesaw (802) comprises an arc segment (814), a curved segment (815) and a contact segment (816), the curved segment (815) being in an inverted V shape and being engaged with the tip portion (813).

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