CN203312099U

CN203312099U - Speed adjustment switch with kick device

Info

Publication number: CN203312099U
Application number: CN2013203481184U
Authority: CN
Inventors: 郑春开; 吴世明; 李子平
Original assignee: Kedu Electric Co Ltd
Current assignee: Kedu Electric Co Ltd
Priority date: 2013-06-14
Filing date: 2013-06-14
Publication date: 2013-11-27
Anticipated expiration: 2023-06-14

Abstract

The utility model discloses a speed adjustment switch with a kick device. The speed adjustment switch with the kick device comprises a shell, a button assembly arranged inside the shell, contact assemblies driven by the button assembly and a locking block assembly which is matched with the button assembly to realize up-down kick of a second moving contact assembly, wherein the contact assemblies comprise a first contact assembly used for controlling the switching off and switching on of a speed adjustment circuit board and a second contact assembly used for short-circuiting the speed adjustment circuit board; a first moving contact in the first contact assembly is connected with the shell through a spring; and the button assembly is provided with a protruding rod which can push the first moving contact upwards to compress the spring. According to the speed adjustment switch with the kick device of the utility model, after the first moving contact contacts with a first fixed contact, the pressure between the first moving contact and the first fixed contact is constant and relatively static, such that the first moving contact can tightly contact with the first fixed contact and is in excellent conduction with the first fixed contact, and therefore, the burnout of the contacts caused by electric arc produced when an existing speed adjustment switch with a kick device is switched on, and the shortening of the service life of the switch because of frequent and excessive compression of the spring connected with the first moving contact can be avoided.

Description

A kind of speed-regulating switch with the kick device

Technical field

The utility model relates to the motor switch field, particularly relates to a kind of speed-regulating switch with the kick device.

Background technology

Speed-regulating switch is applied to electric tool such as the fields such as electric drill, electric grinder, electric wrench and electric screwdriver.Traditional speed-regulating switch mainly comprises housing, button assembly, contact assembly and is arranged on the alignment circuit plate in housing, and contact assembly comprises two moving contacts and two fixed contacts usually.During work, press button assembly, at first drive the first moving contact and the first fixed contact and connect, conducting alignment circuit plate, now electrical appliance starts to start; Along with button assembly continue press down, alignment circuit plate externally output continues the voltage changed, and then realizes speed-regulating function; When bottom button assembly moves to, the second moving contact being contacted with the second fixed contact, the alignment circuit plate is by short circuit, and input power directly is communicated with electrical appliance, and then externally exports constant operating voltage.While due to electric tool, working, vibration is more violent, press...with one's finger and press the button assembly on speed-regulating switch to have certain fluctuation, logical when disconnected while causing the dynamic/static contact assembly, cause the electric tool job insecurity, even between two contacts, can produce electric arc because the current density of passing through is inhomogeneous and directly burn out contact, and traditional speed-regulating switch can not be by test at a slow speed when carrying out life test.

For this reason, my company has developed the speed-regulating switch (referring to Fig. 1-2) with kick function, in Chinese patent literature CN103050308A, discloses the kick function of this speed-regulating switch.The dynamic and static contact of this switch can contact or disconnect moment, and dynamic and static contact contacts under suitable pressure, so just can guarantee that circuit connects stability constantly.This switch comprises housing (1), slidably is arranged on button assembly (2), the second moving contact component (3), lock dog mechanism (4) and the contact assembly in described housing (1), described contact assembly comprises for first moving contact (5) of conducting alignment circuit plate and the first fixed contact (51,52), and be used to realizing second moving contact (6) and second dynamic static joint (61,62) of short circuit alignment circuit plate externally to export full voltage after the kick function, described the first fixed contact (52) is the integral type structure with the second fixed contact (62).When pressing the button assembly (2), described button assembly (2) drives described the first fixed contact of described the first moving contact (5) conducting (51,52), now speed-regulating switch work, and continue with the external output that moves down of described button assembly (2) voltage changed; When described slide block group (3) is subject to the obstruction of lock dog mechanism (4) and realizes kick under the flexible drive of button assembly (2), make the second moving contact (6) conducting the second dynamic static joint (61,62), at this moment speed-regulating switch is by short circuit, and switch is externally exported full voltage.This technical scheme has solved the unsettled problem of speed-regulating switch dynamic/static contact contact, can realize between dynamic and static contact moment close contact or disconnect fully, and this has not only solved the test problem at a slow speed of speed-regulating switch, has also improved the job stability of switch simultaneously.But this technical scheme is traditional Elastic Contact the employing of speed governing stage, namely on the adjustable shelf (21) of button assembly (2), offer the rectangle cavity volume of placing the first moving contact (5), the first moving contact (5) is arranged on the bottom of this cavity volume, stretch out outside this cavity volume two contact, a spring (53) is set in cavity volume, it is upper that the lower end of spring (53) is against the first moving contact (5), and the upper end of spring (53) is against the upper end of cavity volume.When button assembly (2) when pressing, the first moving contact (5) first contacts the first fixed contact (51, 52), along with adjustable shelf (21) continue move down, due to the first fixed contact (51, 52) conflict effect, now the first moving contact (5) can move upward by relative adjustable shelf (21), and the spring (53) in compression square-cavity, cause the continuous increase of spring (53) elastic force, and can rub when relatively cavity volume the moves upward madial wall of cavity volume of the first moving contact (5), under the acting in conjunction of the elastic force of spring (53) and cavity volume madial wall frictional force, the first moving contact (5) is easy to occur the twisting displacement, thereby cause two contacts and the first fixed contact (51 on the first moving contact (5), 52) the generation relative displacement between, conductive stability during speed governing is poor, in addition button assembly (2) press down process, the first moving contact (5) often forces spring (53) excess compression, so just is easy to cause spring (53) to damage, thereby shortens the useful life of switch.

The utility model content

For this reason, the technical problems to be solved in the utility model is to provide a kind of stable work in work, long service life, the speed-regulating switch with the kick function that efficiency of assembling is high.

For achieving the above object, the utility model is by the following technical solutions:

A kind of speed-regulating switch with the kick device, comprise housing; And the button assembly that is arranged at described enclosure interior, the relatively described housing of described button assembly slides and arranges; The contact assembly that driven by described button assembly, described contact assembly comprise be used to controlling the first contact assembly of alignment circuit plate break-make, and for the second contact assembly of the described alignment circuit plate of short circuit alignment circuit; Described the second contact assembly comprises the second moving contact component and the second fixing fixed contact of relative described housing that driven by button assembly; And the lock dog assembly, be used to coordinating described button assembly, realize the upper and lower kick of described the second moving contact component; Described the first contact assembly comprises the first moving contact and the first fixing fixed contact of relatively described housing that driven by described button assembly; One side of described the first moving contact is carried out elasticity with described housing by spring and is connected, and opposite side forms the moving contact coordinated with described the first fixed contact; Described button assembly is provided with for promoting or discharge the nose bar of described the first moving contact, described nose bar moves up and down with described button assembly, and then promote the described spring of described the first moving contact compression, described the first moving contact and described the first fixed contact are disconnected, or discharge described the first moving contact, described the first moving contact is connected with described the first fixed contact under described spring action.

Described the first moving contact is arranged on described housing inside front, and described the first moving contact upside arranges described spring, and its downside arranges described nose bar, and described the first moving contact can be conflicted with described nose bar under the effect of described spring.

Described button assembly comprises adjustable shelf, the top of described adjustable shelf is provided with button, the below of described adjustable shelf is provided with and drives the resetting means that described button assembly upwards resets, and on described adjustable shelf, also is provided with the described lock dog assembly of releasing described the second moving contact component is moved down the descending pushing block of locking and removes described lock dog assembly on described the second moving contact component, moving the up pushing block of locking.

Described resetting means is back-moving spring, and an end of described back-moving spring is against the bottom of described housing, and its other end is against the lower end of described adjustable shelf.

Described the second moving contact component comprises the slide block of the second moving contact and fixing described the second moving contact; Described slide block vertically arranges cavity volume and lower cavity volume, by chute, is communicated with between described upper cavity volume and described lower cavity volume, and the upper end of described upper cavity volume is provided with the chute moved up and down for described nose bar; In described upper cavity volume, be provided with compression spring, be provided with lower stage clip in described lower cavity volume, described the second moving contact is set between the bottom of described lower stage clip and described lower cavity volume;

Described adjustable shelf is provided with the driving lever inserted in described chute, and described driving lever promotes described slide block by pressured described compression spring or described lower stage clip and moves up and down; Described slide block is provided with the fixture block that coordinates locking with described lock dog assembly.

Described lock dog assembly comprises descending lock dog and the up lock dog be hinged on described inner walls, the hinged end of described descending lock dog and up lock dog is provided with torsion spring, the free end of described descending lock dog and up lock dog is respectively equipped with sticking department and conciliates lock section, and described sticking department is by blocking the fixture block on described slide block and then limiting described slide block and move downward or upward; Described descending pushing block on described adjustable shelf and the described up pushing block solution lock section on described descending lock dog and described up lock dog of can conflicting respectively, and promote described descending lock dog and described up lock dog around jointed shaft rotation separately, and then described sticking department is separated with release with described fixture block.

Described sticking department is for being separately positioned on described descending lock dog and the free-ended boss of described up lock dog; Described solution lock section is for extending to respectively the inclined-plane at its middle part from the free end of described descending lock dog and described up lock dog.

The free end of described descending lock dog and described up lock dog is relative; Described descending lock dog is positioned at downside, and relative with the position of described descending pushing block; Described up lock dog is positioned at upside, and corresponding with the position of described up pushing block.

Two contacts on described the second fixed contact and two contacts on described the first fixed contact are separately positioned on the both sides of described slide block longitudinal centre line, and are positioned at wherein two the contacts connections of a side of described slide block longitudinal centre line; Described the second moving contact is positioned at the alignment circuit of the second fixed contact short circuit alignment circuit plate of its below by connection.

Be positioned at described slide block longitudinal centre line wherein the contact of described first fixed contact of the contact of described second fixed contact of a side and homonymy be the integral type structure.

Described housing comprises the base of clamping successively, middle seat, lid three parts, and described button assembly, described contact assembly, described lock dog assembly are arranged in described middle seat.

On described adjustable shelf, also form the groove coordinated with speed-regulating switch on described alignment circuit plate, described speed-regulating switch moves up and down and realizes speed governing with described adjustable shelf.

Described the second fixed contact is communicated with described alignment circuit plate by brace.

The beneficial effects of the utility model:

1. the first contact assembly of the present utility model comprises the first moving contact and the first fixing fixed contact of relative housing that driven by button assembly; One side of the first moving contact is carried out elasticity with housing by spring and is connected, and opposite side forms the moving contact coordinated with the first fixed contact; Button assembly is provided with for promoting or discharge the nose bar of the first moving contact, nose bar moves up and down with button assembly, and then promote the first moving contact Compress Spring, the first moving contact and the first fixed contact are disconnected, or discharge the first moving contact, the first moving contact is connected with the first fixed contact under spring action.After button assembly of the present utility model is pressed, remove gradually to the first moving contact make progress against, under the effect of spring, the first moving contact is upspring downwards and is contacted the conducting speed-regulating switch with the first fixed contact, along with moving down of button assembly, and the speed governing button driven on the alignment circuit plate moves down, externally output continues the voltage of conversion, realizes speed-regulating function.And the length and the elastic force that connect the spring of the first moving contact are selected according to actual conditions, when the first moving contact with after the first fixed contact contacts, constant pressure between the two, and relatively static, can close contact and conducting good, the speed-regulating switch of having avoided in the past having the kick function produces the electrical arc erosion contact when the conducting speed-regulating switch, and the spring of having avoided connecting the first moving contact shortens switch life because of frequent excess compression.

2. the lock dog assembly in the utility model comprises descending lock dog and the up lock dog be hinged on inner walls, and the hinged end of descending lock dog and up lock dog is provided with torsion spring, and the free end of descending lock dog and up lock dog is respectively equipped with sticking department and conciliates lock section.The utility model arranges torsion spring by the hinged end at descending lock dog and up lock dog and provides required twisting resistance for locking, not only guaranteed the stability of locking, also because torsion spring is convenient to location is installed, can greatly improve the efficiency of assembling of button simultaneously, reduce process costs.

3. housing of the present utility model comprises the base of clamping successively, middle seat, lid three parts, and button assembly, contact assembly, lock dog assembly are arranged in middle seat.The utility model can block by through housing, being divided into three parts of forming with integral body mutually, and button assembly, contact assembly, lock dog assembly are arranged in middle seat, this set is convenient to assemble inner each assembly of button, has greatly improved efficiency of assembling simultaneously, saves process costs.

4. the second fixed contact of the present utility model is communicated with the alignment circuit plate by brace, and this connected mode is compared with traditional welding manner, can improve the packaging efficiency of product, thereby improves production capacity.

The accompanying drawing explanation

For the content that makes utility model is more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein

Fig. 1 is with the structure explosive view of the speed-regulating switch of kick function in prior art;

Fig. 2 is with the button assembly of the speed-regulating switch of kick function and the assembling schematic diagram between the first moving contact in prior art;

Fig. 3 is structure explosive view of the present utility model;

Fig. 4 is middle seat mounted inside schematic diagram of the present utility model;

Fig. 5 is the structural representation of button assembly of the present utility model;

Fig. 6 is the structural representation of adjustable shelf of the present utility model;

Fig. 7 is the structural representation of the second moving contact component of the present utility model;

Fig. 8 is lock dog assembly of the present utility model and the schematic diagram that coordinates of slide block, adjustable shelf;

Fig. 9 is the structural representation of descending lock dog of the present utility model;

Figure 10 is the structural representation of alignment circuit plate of the present utility model;

Figure 11 is end view of the present utility model;

Figure 12 is that B-B of the present utility model is to cutaway view;

Figure 13 is that the C-C of speed-regulating switch of the present utility model while being in the normal state is to inner structural representation;

C-C when Figure 14 is slide block down locking of the present utility model is to inner structural representation;

C-C when Figure 15 is slide block down release of the present utility model is to inner structural representation;

Figure 16 is that the C-C of the second moving contact of the present utility model while contacting with the second fixed contact is to inner structural representation;

Figure 17 is that the D-D of the second moving contact of the present utility model while contacting with the second fixed contact is to inner structural representation;

D-D when Figure 18 is the up locking of slide block of the present utility model is to inner structural representation;

D-D when Figure 19 is the up release of slide block of the present utility model is to inner structural representation;

Figure 20 is that the D-D of button assembly of the present utility model while returning to initial condition is to inner structural representation.

In figure, Reference numeral is expressed as:

The 1-housing; The 11-base; Seat in 12-; The 13-lid; The 2-button assembly; The 21-nose bar; The 22-adjustable shelf; The 23-button; The descending pushing block of 24-; The up pushing block of 25-; The 26-driving lever; The 27-back-moving spring; The 28-groove; The 29-sealing gasket; 3-the second moving contact component; 31-the second moving contact; The 32-slide block; The 33-compression spring; Stage clip under 34-; 35,36-chute; 37,38-fixture block; 4-lock dog assembly; The descending lock dog of 41-; The up lock dog of 42-; The 43-torsion spring; The 4a-boss; The 4b-inclined-plane; 5-alignment circuit plate; The 51-speed-regulating switch; 6-the first moving contact; 61,62-the first fixed contact; The 63-spring; 71,72-the second fixed contact; The 8-brace.

Embodiment

Referring to Fig. 3,10,11, the disclosed speed-regulating switch with the kick device of the utility model, comprise housing 1; And be arranged at the button assembly 2 of described housing 1 inside, the contact assembly that driven by described button assembly 2, and be used to coordinating described button assembly 2 to realize described the second moving contact component kick lock dog assembly 4 Shang Xia 3.Wherein, the relatively described housing 1 of described button assembly 2 slides and arranges; Described contact assembly comprises be used to controlling the first contact assembly of alignment circuit plate 5 break-makes, and for the described alignment circuit plate 5 of short circuit externally to export the second contact assembly 3 of full voltage; Described the second contact assembly 3 comprises the second moving contact component 3 and the second fixing fixed

contact

71,72 of relative described housing 1 that driven by button assembly 2; Described the first contact assembly comprises the first moving contact 6 and the first fixing fixed

contact

61,62 of relatively described housing 1 that driven by described button assembly 2; One side of described the first moving contact 6 is carried out elasticity with described housing 1 by spring 63 and is connected, and opposite side forms the moving contact coordinated with described the first fixed

contact

61,62; Described button assembly 2 is provided with for promoting or discharge the nose bar 21 of described the first moving contact 6, described nose bar 21 moves up and down with described button assembly 2, while on described nose bar 21, moving, promote the described spring 63 of described the first moving contact 6 compression, described the first moving contact 6 and described the first fixed

contact

61,62 are disconnected, when described nose bar 21 moves down, discharge described the first moving contact 6, described the first moving contact 6 is steadily closely connected with described the first fixed

contact

61,62 under described spring 63 effects.While due to described button assembly 2, moving down, discharge the first moving contact 6, the first moving contact 6 moves down under the effect of described spring 63, constant pressure between the sound contact, and relatively static, can close contact and conducting good, and, the elastic force that two contacts of described the second moving contact 6 are subject between the two is balance comparatively, described the second moving contact 6 can not twist, and the current density that two contacts are passed through is comparatively even, has improved the function reliability of switch.

Referring to Fig. 4, in the present embodiment, described the first moving contact 6 is arranged on described housing 1 inside front, and described the first moving contact 6 upsides arrange described spring 63, its downside arranges described nose bar 21, and described the first moving contact 6 can be conflicted with described nose bar 21 under the effect of described spring 63.

Referring to Fig. 5, the described button assembly 2 in the present embodiment comprises adjustable shelf 22, and the end that described adjustable shelf 22 stretches out housing 1 is provided with the button 23 of convenient operation, and described adjustable shelf 22 is sealed and matched by sealing gasket 29 with described housing 1; The below of described adjustable shelf 22 is provided with and drives the resetting means that described button assembly 2 upwards resets, described resetting means in the present embodiment is back-moving spring 27, one end of described back-moving spring 27 is against the bottom of described housing 1, and its other end is against the lower end of described adjustable shelf 22.On described adjustable shelf 22, also be provided be used to removing 4 pairs of described the second moving contact components 3 of described lock dog assembly and move down the descending pushing block 24 of locking and remove the up pushing block 25 that moves locking on 4 pairs of described the second moving contact components 3 of described lock dog assembly.Referring to Fig. 6, described descending pushing block 24 in the present embodiment and described up pushing block 25 are for to be fixedly installed on the rectangle pushing block on described adjustable shelf 22, and the turning, below of described descending pushing block 24 and the turning, top of described up pushing block 25 are equipped with the breach that is suitable for promoting described lock dog assembly 4 releases.

Referring to Fig. 7, described the second moving contact component 3 in the present embodiment comprises the second moving contact 31 and for the slide block 32 of fixing described the second moving contact 31; Described slide block 32 vertically arranges cavity volume and lower cavity volume, by chute 36, is communicated with between described upper cavity volume and described lower cavity volume, and the upper end of described upper cavity volume is provided with the chute 35 moved up and down for described nose bar 21; In described upper cavity volume, be provided with compression spring 33, in described lower cavity volume, be provided with lower stage clip 34, described the second moving contact 31 is set between the bottom of described lower stage clip 36 and described lower cavity volume; Described adjustable shelf 22 is provided with the driving lever 26 inserted in described chute 36, and described driving lever 26 promotes described slide block 32 by pressured described compression spring 33 or described lower stage clip 34 and moves up and down; Described slide block 32 is provided with the

fixture block

37,38 that coordinates locking with described lock dog assembly 4.

Referring to Fig. 8, described lock dog assembly 4 in the present embodiment comprises descending lock dog 41 and the up lock dog 42 be hinged on described housing 1 inwall, the hinged end of described descending lock dog 41 and up lock dog 42 is provided with torsion spring 43, the free end of described descending lock dog 41 and up lock dog 42 is respectively equipped with sticking department and conciliates lock section, and described sticking department is by blocking fixture block 37 on described slide block 32 or fixture block 38 and then limiting described slide block 32 and move downward or upward; Described descending pushing block 24 on described adjustable shelf 22 and the described up pushing block 25 solution lock section on described descending lock dog 41 and described up lock dog 42 of can conflicting respectively, and promote described descending lock dog 41 and described up lock dog 42 around jointed shaft rotation separately, and then described sticking department is separated with release with described fixture block 37 or fixture block 38.

Referring to Fig. 8-9, the described descending lock dog 41 in the present embodiment is identical with the structure of described up lock dog 42, and in employing, declivity is to arranging, and free end is relative, and described descending lock dog 41 is positioned at below, and relative with the position of described descending pushing block 24; Described up lock dog 42 is positioned at upside, and corresponding with the position of described up pushing block 25.The free-ended boss 4a be equipped with as sticking department of described descending lock dog 41 and described up lock dog 42; Described solution lock section is for extending to respectively the inclined-plane 4b at its middle part from the free end of described descending lock dog 41 or described up lock dog 42.

Two contacts on described the second fixed

contact

71,72 in the present embodiment and two contacts on described the first fixed

contact

61,62 are separately positioned on the both sides of described slide block 32 longitudinal centre lines, and be positioned at described slide block 32 longitudinal centre lines and wherein be communicated with two contacts of a side, namely described the second fixed contact 72 is communicated with described the first fixed contact 62 and is the integral type structure; Described the second moving contact 31 is positioned at the alignment circuit of the second fixed

contact

71,72 short circuit alignment circuit plates 5 of its below by connection.Described the second fixed

contact

71,72 is communicated with described alignment circuit plate respectively, and the second fixed contact below described the second moving contact 31 connections are positioned at it 71,72 o'clock, make the alignment circuit of described alignment circuit plate 5 by short circuit, now externally exports full voltage.

In the present embodiment, described housing 1 comprises the base 11 of clamping successively, middle seat 12, lid 13 3 parts, and described button assembly 2, described contact assembly 3, described lock dog assembly 4 are arranged in described middle seat 12.Described housing 1 adopts three part-structures, is convenient to the assembling of each assembly in switch, can improve efficiency of assembling, saves process costs.Between described base 11 in the present embodiment, middle seat 12, lid 13 preferably clamping coordinate, can certainly adopt other assembling mode, as the screw connection etc.

Referring to Fig. 5, Figure 10, on described adjustable shelf 22, also form the groove 28 coordinated with speed-regulating switch 51 on described alignment circuit plate 5, described speed-regulating switch 51 moves up and down and realizes speed governing with described adjustable shelf 22.

Described the second fixed

contact

71,72 in the present embodiment is communicated with described alignment circuit plate 5 by brace 8, adopts this method of attachment can improve the efficiency of assembling of product.

Operation principle of the present utility model is as follows:

1. button is pressed process (referring to Figure 13-16):

Press the button 23, the nose bar 21 driven on adjustable shelf 22 moves down, nose bar 21 no longer presses the first movable contact 6, the first movable contact 6 ejects and connects the first fixed contact 61 and the first fixed contact 62 downwards under the effect of spring 63, now just connected the alignment circuit on alignment circuit plate 5, the external output voltage of circuit.

Button 23 continues to move down, and by adjustable shelf 22, overcomes the resistance of back-moving spring 27, drive the driving lever 26 arranged on adjustable shelf 22 and press lower stage clip 34, and then band movable slider 32 moves down; In slide block 32 folding processes, the fixture block 37 be arranged on slide block 32 comes to the boss 4a on descending lock dog 41, as shown in figure 14.Under the conflict of boss 4a was supported, now slide block 32 stopped moving down.Along with continuing to press down drive adjustable shelf 22, button 23 moves down, lower stage clip 34 storage elastic potential energys, the descending pushing block 24 arranged on adjustable shelf 22 presses the inclined-plane 4b on descending lock dog 41, as shown in figure 15, descending lock dog 41 overcomes the torsion of torsion spring 63, rotates and makes a concession around jointed shaft.When the fixture block 37 arranged on the boss 4a arranged on descending lock dog 41 and slide block 32 separates, slide block 32 moves down fast under releasing of lower stage clip 34 can act on, with the second moving contact 31 arranged on movable slider 32, move down fast and form kick, connect the second fixed contact 71 and the second fixed contact 72, as shown in figure 16.In the process that adjustable shelf 22 moves down, the speed-regulating switch 51 that the groove 28 arranged on adjustable shelf 22 drives on alignment circuit plate 5 moves down, and now the alignment circuit plate is externally exported and continued the voltage changed, and reaches speed-regulating function; After the second moving contact 31 is connected the second fixed contacts 71 and the second fixed contact 72, short circuit the alignment circuit on the alignment circuit plate, now externally export full voltage.

2. button release process (referring to Figure 17-20):

After button 23 unclamps, under the effect of back-moving spring 27, move on adjustable shelf 22, when the boss 4a on up lock dog 42 withstands on the fixture block 38 on slide block 32, as shown in figure 18, on stopping, moving slide block 32, along with in 22 continuation of adjustable shelf, moving, driving lever 26 upwards compresses compression spring 33, the inclined-plane 4b of the pressured up lock dog 42 of up pushing block 25 arranged on adjustable shelf 22, as shown in figure 19, up lock dog 42 overcomes the torsion of torsion spring 43 and rotates and make a concession around jointed shaft under the pressured effect of up pushing block 25, as the boss 4a on up lock dog 42 when fixture block 38 on slide block 32 separates, slide block 32 moves and forms kick on quick under the effect of compression spring 33, as shown in figure 20, thereby drive the second moving contact 31 and the second fixed contact 71, 72 disconnect connection, now alignment circuit plate 5 recovers speed-regulating function, in the process of moving on adjustable shelf 22, on the groove 28 arranged on adjustable shelf 22 and drive speed-regulating switch 51, move, now alignment circuit plate 5 is externally exported and is continued the voltage changed, reach speed-regulating function.

When adjustable shelf 22 moves under the effect of back-moving spring 27, continuing, nose bar 21 on adjustable shelf 22 contacts and promotes the first moving contact 6 and moves upward, while making the first moving contact 6 disconnect with being connected of the first fixed contact 61 and the first fixed contact 62, now alignment circuit plate 5 is opened circuit, the alignment circuit Non voltage output.

In the present embodiment locked component can make as required have or not lock, self-locking, lock, the function such as anti-self-locking, these have belonged to those skilled in the art's common practise.Above-mentioned embodiment just is explained in detail the technical solution of the utility model; the utility model has more than and only is confined to above-described embodiment; those skilled in the art should be understood that; the improvement on the utility model basis of the above-mentioned principle of every foundation and spirit, substitute, all should be within protection range of the present utility model.

Claims

1. the speed-regulating switch with the kick device, comprise housing (1); And it is inner to be arranged at described housing (1),

Button assembly (2), relatively described housing (1) slide and arrange;

The contact assembly that driven by described button assembly (2), described contact assembly comprise be used to controlling the first contact assembly of alignment circuit plate (5) break-make, and for the second contact assembly of the described alignment circuit plate of short circuit (5) alignment circuit; Described the second contact assembly comprises the second moving contact component (3) and fixing the second fixed contact (71,72) of relative described housing (1) that driven by button assembly (2)

And lock dog assembly (4), be used to coordinating described button assembly (2), realize the upper and lower kick of described the second moving contact component (3); It is characterized in that:

Described the first contact assembly comprises the first moving contact (6) and fixing the first fixed contact (61,62) of relatively described housing (1) that driven by described button assembly (2); One side of described the first moving contact (6) is carried out elasticity with described housing (1) by spring (63) and is connected, and opposite side forms the moving contact coordinated with described the first fixed contact (61,62);

Described button assembly (2) is provided with for promoting or discharge the nose bar (21) of described the first moving contact (6), described nose bar (21) moves up and down with described button assembly (2), and then promote described the first moving contact (6) and compress described spring (63), make described the first moving contact (6) and described the first fixed contact (61,62) disconnect, or discharge described the first moving contact (6), described the first moving contact (6) is connected with described the first fixed contact (61,62) under described spring (63) effect.

2. a kind of speed-regulating switch with the kick device according to claim 1, it is characterized in that: described the first moving contact (6) is arranged on described housing (1) inside front, described the first moving contact (6) upside arranges described spring (63), its downside arranges described nose bar (21), and described the first moving contact (6) can be conflicted with described nose bar (21) under the effect of described spring (63).

3. a kind of speed-regulating switch with the kick device according to claim 1 and 2, it is characterized in that: described button assembly (2) comprises adjustable shelf (22), the top of described adjustable shelf (22) is provided with button (23), the below of described adjustable shelf (22) is provided with and drives the resetting means that described button assembly (2) upwards resets, on described adjustable shelf (22), also being provided with the described lock dog assembly of releasing (4) moves down the descending pushing block (24) of locking and removes described lock dog assembly (4) on described the second moving contact component (3), moving the up pushing block (25) of locking described the second moving contact component (3).

4. a kind of speed-regulating switch with the kick device according to claim 3, it is characterized in that: described resetting means is back-moving spring (27), one end of described back-moving spring (27) is against the bottom of described housing (1), and its other end is against the lower end of described adjustable shelf (22).

5. a kind of speed-regulating switch with the kick device according to claim 3 is characterized in that:

Described the second moving contact component (3) comprises the slide block (32) of the second moving contact (31) and fixing described the second moving contact (31); Described slide block (32) vertically arranges cavity volume and lower cavity volume, by chute (36), is communicated with between described upper cavity volume and described lower cavity volume, and the upper end of described upper cavity volume is provided with the chute (35) moved up and down for described nose bar (21); In described upper cavity volume, be provided with compression spring (33), in described lower cavity volume, be provided with lower stage clip (34), described the second moving contact (31) is set between the bottom of described lower stage clip (34) and described lower cavity volume;

Described adjustable shelf (22) is provided with the driving lever (26) inserted in described chute (36), and described driving lever (26) promotes described slide block (32) by pressured described compression spring (33) or described lower stage clip (34) and moves up and down; Described slide block (32) is provided with the fixture block (37,38) that coordinates locking with described lock dog assembly (4).

6. a kind of speed-regulating switch with the kick device according to claim 5, it is characterized in that: described lock dog assembly (4) comprises descending lock dog (41) and the up lock dog (42) be hinged on described housing (1) inwall, the hinged end of described descending lock dog (41) and up lock dog (42) is provided with torsion spring (43), the free end of described descending lock dog (41) and up lock dog (42) is respectively equipped with sticking department and conciliates lock section, described sticking department is by blocking the fixture block (37 on described slide block (32), 38) and then limit described slide block (32) and move downward or upward, described descending pushing block (24) on described adjustable shelf (22) and described up pushing block (25) the solution lock section on described descending lock dog (41) and described up lock dog (42) of can conflicting respectively, and promote described descending lock dog (41) and described up lock dog (42) around jointed shaft rotation separately, and then described sticking department and described fixture block (37,38) are separated with release.

7. a kind of speed-regulating switch with the kick device according to claim 6, it is characterized in that: described sticking department is for being separately positioned on described descending lock dog (41) and the free-ended boss of described up lock dog (42) (4a); Described solution lock section is for extending to respectively the inclined-plane (4b) at its middle part from the free end of described descending lock dog (41) and described up lock dog (42).

8. a kind of speed-regulating switch with the kick device according to claim 7, it is characterized in that: described descending lock dog (41) is relative with the free end of described up lock dog (42); Described descending lock dog (41) is positioned at downside, and relative with the position of described descending pushing block (24); Described up lock dog (42) is positioned at upside, and corresponding with the position of described up pushing block (25).

9. a kind of speed-regulating switch with the kick device according to claim 8 is characterized in that:

Described the second fixed contact (71,72) two contacts and described the first fixed contact (61 on, 62) two contacts on are separately positioned on the both sides of described slide block (32) longitudinal centre line, and are positioned at wherein two the contacts connections of a side of described slide block (32) longitudinal centre line; Described the second moving contact (31) is positioned at the alignment circuit of the second fixed contact (71,72) short circuit alignment circuit plate (5) of its below by connection.

10. a kind of speed-regulating switch with the kick device according to claim 9 is characterized in that: be positioned at described slide block (32) longitudinal centre line wherein the contact of described first fixed contact (62) of the contact of described second fixed contact (72) of a side and homonymy be the integral type structure.

11. a kind of speed-regulating switch with the kick device according to claim 10, it is characterized in that: described housing (1) comprises base (11), middle seat (12), lid (13) three parts of clamping successively, and described button assembly (2), described contact assembly (3), described lock dog assembly (4) are arranged in described middle seat (12).

12. a kind of speed-regulating switch with the kick device according to claim 11, it is characterized in that: on described adjustable shelf (22), also form the groove (28) coordinated with speed-regulating switch (51) on described alignment circuit plate (5), described speed-regulating switch (51) moves up and down and realizes speed governing with described adjustable shelf (22).

13. a kind of speed-regulating switch with the kick device according to claim 12 is characterized in that: described the second fixed contact (71,72) is communicated with described alignment circuit plate (5) by brace (8).