CN2518649Y

CN2518649Y - Ratchet wrench capable of quick feeding

Info

Publication number: CN2518649Y
Application number: CN 02202150
Authority: CN
Inventors: 林翌智
Original assignee: KUNZHI PRECISION INDUSTRY Co Ltd
Current assignee: KUNZHI PRECISION INDUSTRY Co Ltd
Priority date: 2002-01-22
Filing date: 2002-01-22
Publication date: 2002-10-30
Anticipated expiration: 2012-01-22

Abstract

The utility model provides a ratchet wrench capable of quick feeding, which is used for rotating a fastening component, comprising a body, a clamping device that is pivoted on the mounting seat of the body, a group of braking devices which are arranged on the mounting seat and for changing the checking direction of the clamping device, a rotating device and a transmission device. The rotating device has a transmission rod that is axially arranged in the holding rod of the body and a rotation rod for driving the transmission rod to rotate. The transmission device has a first component that is positioned at the first end part of the transmission rod and a second component that is arranged on the clamping device and is linked with the first component. When rotating the rotation rod of the rotating device, a transmission rod of the rotating device drives the first component as well as the second component, making the clamping device rotate along the self axes and rotate the fastening component.

Description

But the ratchet spanner of fast feed

(1) technical field

The utility model relates to a kind of manual ratchet spanner, particularly a kind of limitation that is not subjected to securing member environment of living in, but and the ratchet spanner of the fast feed of the described securing member of turn fast.

(2) background technology

Spanner needed sizable revolution space to drive securing member as nut or screw rod etc. in use in the past, and the user often need buckle and break away from back and forth turn operation back and forth between the action of securing member.In order to improve the shortcoming of spanner in the past, as shown in Figure 1, there is the part dealer to design a kind of ratchet spanner 1, described ratchet spanner 1 is to make the user can needn't break away from the action of conjunction in certain space by a brake apparatus, only need directly to pull repeatedly back and forth that ratchet spanner can drive a nut or a screw rod spiral shell is moving, with the screw rod is example, screw rod can be divided into for two stages when carrying out combination, phase I is screw rod is screwed in the screw lentamente and to be positioned at not urgent state, second stage then is to begin firmly to screw screw rod to make it can the fastening workpiece of urgent desire, yet, restriction for fear of securing member environment space of living in, for example: in the car engine chamber interior, it can be often very little for the angle of turn, therefore, must be repeatedly when operating in the past ratchet spanner 1 and pull spanner 1 repeatedly, beginning can be finished the phase I screw rod is sent in the screw up to approaching urgent state, for example: if can be 30 degree for the angle of spanner turn, then allow screw rod plant into pitch, the user needs spanner is back and forth pulled 12 times, could allow screw rod change foot one circle, this kind mode of operation is not only time-consuming and need quite repeatedly pull spanner 1 repeatedly, therefore, how to allow the user under limited operating space, can more promptly use ratchet spanner 1 just to become the problem that remains to be improved.

(3) utility model content

The purpose of this utility model is to provide a kind of can allow the user promptly use, but and is not subjected to the ratchet spanner of the fast feed that the operating space influences.

But the ratchet spanner of the utility model fast feed, be used for turn one securing member, but the ratchet spanner of this fast feed comprises a body, a but turn but be assembled in clamping and drawing device on the mount pad non-returnly, one with the follower unilateral system tie the brake apparatus that changes the non-return direction of clamping and drawing device, one rotation apparatus and a transmission device, it is characterized in that: body has a holding rod, an and mount pad that is arranged at holding rod one leading section, holding rod has a through hole along the extension of one central axis, mount pad has an installation room that is communicated with through hole, clamping and drawing device comprises that one is assembled in the interior follower of installation room of mount pad, an and clamping piece that is wholely set with follower, rotation apparatus has an interior drive link of through hole that is loaded on holding rod, reach one and be used for driving the swing arm that drive link rotates, drive link have away from first, two ends, first end is near mount pad, the second end is the rearward end near holding rod, swing arm is assembled in the second end of drive link, transmission device has first assembly that is installed in the drive link first end, and second assembly that is arranged on the clamping and drawing device, but second assembly is meshed and interlock by first assembly.

For further specifying the purpose of this utility model, design feature and effect, the utility model is described in detail below with reference to accompanying drawing.

(4) description of drawings

Fig. 1 is a stereogram of ratchet spanner in the past.

But Fig. 2 is a three-dimensional exploded view of ratchet spanner one preferred embodiment of the utility model fast feed.

Fig. 3 is a combination partial sectional view, shows that the composite card of a ratchet of the relative clamping and drawing device of first and second briquetting of a brake apparatus among Fig. 2 supports situation, and wherein, clamping and drawing device is to rotate in a clockwise direction.

Fig. 4 is another state diagram of similar Fig. 3, the situation that fastens of the ratchet of the relative clamping and drawing device of first and second briquetting of demonstration brake apparatus, and wherein, clamping and drawing device is to rotate in a counter-clockwise direction.

Fig. 5 is a plane of preferred embodiment, shows that a pivot centering block of brake apparatus is assembled on the base plate of a mount pad, and wherein, the pivot centering block is positioned on the base plate relative one opposition side that revolves pushing block.

Fig. 6 is the combination side sectional view that preferred embodiment one is analysed and observe along a holding rod length direction, shows the engagement situation of first and second assembly of a transmission device.

(5) specific embodiment

As shown in Figure 2, but ratchet spanner 2 one preferred embodiments of the utility model fast feed are to be used for turn one securing member 20 by a sleeve 21, but the ratchet spanner 2 of this fast feed comprises a body 3, a clamping and drawing device 4, a brake apparatus 5, a rotation apparatus 6 and a transmission device 7.

Body 3 includes a holding rod 31, this holding rod 31 have each other away from a leading section 311 and a rearward end 312, holding rod 31 also has through hole 313 (see figure 6)s along 310 extensions of one central axis, reach a colloid that is sheathed on rearward end 312 peripheries and grip pad 314, and body 3 has a mount pad 32 that is spirally connected the leading section 311 that is arranged at holding rod 31, simultaneously, this mount pad 32 has an installation room 321 that is communicated with through hole 313, mount pad 32 has a base plate 322, the coaming plate 323 of one frame around base plate 322, an and top board 324 that removably is covered on coaming plate 323 apical margins and corresponding base plate 322, and be formed with the pivot hole 325 of a perforation plate body in base plate 322 centre positions, and top board 324 also has a perforation 326, and installation room 321 is promptly with above-mentioned base plate 322, coaming plate 323 and top board 324 define formation jointly.But clamping and drawing device 4 turns but be assembled on the mount pad 32 non-returnly, has a pivot part 41 that removably is installed in aforementioned pivot hole 325, one is formed at pivot part 41 tops and is positioned at the follower 42 of installation room 321, reach a clamping piece 43 that stretches out outside the installation room 321, clamping piece 43 is stretched outside installation room 321 by the perforation 326 on the aforementioned top board 324, these clamping piece 43 outward appearances are to be designed to cooperate different size sleeve 21 to come turn securing member 20, wherein, follower 42 can be a ratchet configuration or friction pulley structure, below is to describe with ratchet configuration.

Simultaneously, as Fig. 3, shown in 4, brake apparatus 5 is to be assembled in the non-return direction that is used for changing clamping and drawing device 4 on the mount pad 32, this brake apparatus 5 has one first briquetting 51 and one second briquetting 52, first, two

briquettings

51,52 are hubbed at respectively on the aforementioned base plate 322, and have two of mutual correspondence and pushed away face 511,521 and two retaining surfaces 512,522, and brake apparatus 5 also has first spring 53 that is arranged at 323 of first briquetting 51 and coaming plates, one is arranged at second spring 54 of 323 of second briquetting 52 and coaming plates, and be hubbed at first, two briquettings 51, revolve pushing block 55 between 52, revolving pushing block 55 can be rotated to the face that pushed away 511 positions of pushing and pressing first briquetting 51, also can be rotated to the face that pushed away 521 positions of pushing and pressing second briquetting 52, make first respectively, two

briquettings

51,52 retaining surface 512,522 fasten with ratchet 42, can change the rotatable direction of clamping and drawing device 4.

Shown in Fig. 3,4 and 5, revolving pushing block 55 is to cooperate a pivot centering block 56 that is hubbed on the base plate 322 to use, this pivot centering block 56 is to be positioned at the opposition side position of revolving pushing block 55 on the base plate 322, pivot centering block 56 be can one with revolving pushing block 55 mutual rivet clasps swing, the user can push away pendulum pivot centering block 56 and come turn to revolve pushing block 55 to change the effect of revolving pushing block 55 directions to reach.When first briquetting 51 fastens in ratchet 42, clamping and drawing device 4 can be docile and obedient the clockwise rotation, and body 3 also according to this retaining surface 512 of direction by first briquetting 51 synchronously turn clamping and drawing device 4, otherwise, when second briquetting 52 fastens in ratchet 42, clamping and drawing device 4 just can be according to rotation counterclockwise, and body 3 equally according to this retaining surface 522 of direction by second briquetting 52 synchronously turn clamping and drawing device 4.

As Fig. 2, shown in 6, rotation apparatus 6 has a drive link 61 in the through hole that is loaded on holding rod 31 313, reach one and be used for driving the swing arm 62 that drive link 61 rotates, drive link 61 have away from first, two ends 611,612, first end 611 is near mount pad 32, the second end 612 is the rearward end 312 near holding rod 31, rotation apparatus 6 also has a rotating disc 63, this rotating disc 63 is the second ends 612 that are fixedly set in drive link 61 in the mode of urgent cooperation, and can with drive link 61 synchronous turns, but and above-mentioned swing arm 62 be folding be installed on the rotating disc 63.

Transmission device 7 is to have first assembly 71 that is installed in the first end 611 of drive link 61, and second assembly 72 that is arranged on the clamping and drawing device 4, and second assembly 72 is by first assembly, 71 interlocks, in present embodiment, two bevel gears of first and

second assembly

71,72 for being meshed, but do not exceed, can adopt design such as worm screw or friction pulley in the past yet with this kind gear kenel; First assembly 71 is and drive link 61 one turns that second assembly 72 then is the position that is assembled in ratchet 42 tops of clamping and drawing device 4, is equally and clamping and drawing device 4 one turns.

As shown in Figure 6, when the user rotates the swing arm 62 of rotation apparatus 6, drive first assembly 71 and interlock second assembly 72, make clamping and drawing device 4 drive sleeve 21 and the described securing member 20 of turn along self axis 40 rotation by drive link 61.

Therefore, when but the user screws action at the ratchet spanner 2 that uses fast feed, can be earlier with the moving swing arm 62 of hand-screw, swing arm 62 synchronous driven rotary dish 63 and drive links 61, make first assembly 71 can turn second assembly 72, whereby, clamping and drawing device 4 can ceaselessly be rotated with turn sleeve 21 and be turned described securing member 20, by this kind design, but the user in use need not can make securing member 20 finish aforesaid phase I action at the ratchet spanner 2 of pulling fast feed repeatedly, user's turn swing arm 62 is promptly to make securing member 20 be threaded to the precalculated position really, after the user finishes the action of phase I in securing member 20, promptly can hold the described securing member 20 of grip bar 31 continuation rotations makes it can proceed the urgent action of second stage, and remove the action that ratchet spanner 1 is in the past pulled at the repetitiousness of securing member during 20 phase I from, in addition, but the user carries out loose deactuate when doing with the ratchet spanner 2 of fast feed, the holding rod 31 that can hand grips body 3 firmly moves back securing member 20 pines towards the opposite direction that screws, and continues turn swing arm 62 again till securing member 20 breaks away from described workpiece fully.

Conclude above-mentionedly, the utility model can allow the described securing member of user's turn more promptly and not influenced by the operating space really.

Certainly, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claims variation, the modification of the above embodiment.

Claims

1. but the ratchet spanner of a fast feed, be used for turn one securing member, it comprises a body, a but turn but be assembled in clamping and drawing device on the mount pad non-returnly, one with the follower unilateral system tie the brake apparatus that changes the non-return direction of clamping and drawing device, one rotation apparatus and a transmission device, it is characterized in that: body has a holding rod, an and mount pad that is arranged at holding rod one leading section, holding rod has a through hole along the extension of one central axis, mount pad has an installation room that is communicated with through hole, clamping and drawing device comprises that one is assembled in the interior follower of installation room of mount pad, an and clamping piece that is wholely set with follower, rotation apparatus has an interior drive link of through hole that is loaded on holding rod, reach one and be used for driving the swing arm that drive link rotates, drive link have away from first, two ends, first end is near mount pad, the second end is the rearward end near holding rod, swing arm promptly is assembled in the second end of drive link, transmission device has first assembly that is installed in the drive link first end, and second assembly that is arranged on the clamping and drawing device, but second assembly is meshed and interlock by first assembly.

But 2, the ratchet spanner of fast feed according to claim 1, it is characterized in that: first and second assembly is respectively a bevel gear.

But 3, the ratchet spanner of fast feed according to claim 1, it is characterized in that: clamping and drawing device also has a pivot part that is wholely set with follower, this pivot part is removably disposed on the base plate of mount pad, makes the clamping and drawing device can be along self axis rotation.