CN201056470Y

CN201056470Y - Clutch type rotating tommy bar used for winch

Info

Publication number: CN201056470Y
Application number: CNU2007200693246U
Authority: CN
Inventors: 刘波
Original assignee: SHANGHAI CARRATE ENTERPRISE CO Ltd
Current assignee: SHANGHAI CARRATE ENTERPRISE CO Ltd
Priority date: 2007-04-25
Filing date: 2007-04-25
Publication date: 2008-05-07
Anticipated expiration: 2017-04-25

Abstract

The utility model is related to a clutch-type rotation crowbar for a winch, which comprises a crowbar axis (10) and a crowbar head (20), wherein, the crowbar axis (10) can be fixedly or dismountably connected with the crowbar head (20). The crowbar head (20) comprises a pawl seat (201), a pawl shaft (211) and a pin shaft (4). The upper end of the pawl shaft (211) is connected with the pawl seat (201), and the lower end thereof is connected with the pin shaft (4). The pawl shaft (211) comprises two pawls (210), a pawl ball (209) and two return springs (208) corresponding to the pawl. The inner circumference of the pawl seat (201) comprises more than four pawl slots (213) corresponding to the pawl (210). The depth of the pawl slot (213) is from the shallow to deep in the counterclockwise direction. The utility model has the advantages that when the crowbar is used to rotate the winch shaft, the binding of the cargo can be realized with continuously rotating the winch shaft but without repeatedly pumping out and inserting the crowbar, thereby being simple and effective.

Description

Winch rotates crow bar with disengaging type

Technical field

The utility model relates to a kind of crow bar, relates in particular to the crow bar head of a kind of winch with crow bar.

Background technology

Safety is more and more pursued in the modern automobile transportation, and increasing automobile adopts a kind of ratchet-type winch bundled device and industrial polyester belt that shipping goods is carried out tighten, and crow bar is exactly to be used for rotating the binding of winch axle realization to goods.

As seen from Figure 1: crow bar generally is made up of a crow bar head 1, a handle bar 2 and a terminal end plug 3.During use crow bar head 1 is inserted in the sky of winch spindle nose, the people holds the handle bar application of force of crow bar head end, thereby tightens up the purpose that ribbon reaches binding.

The crow bar principle of work of this structure is such: crow bar is inserted in the crow bar hole of winch spindle nose, so just formed a lever construction, the strong point is on the winch spindle nose, handle bar is as the application of force arm of force, the crow bar head is as the stressed arm of force, because handle bar is longer than the crow bar head, when adding less power, just can obtains bigger power, thereby thereby can drive the rotation of winch axle to tighten up the ribbon restraint of loads at crow bar head place in handle bar.

Because the commentaries on classics tape spool of winch is coaxial being welded into one with spindle nose, the position of weld of winch on automobile and people's use habit, again changed a hole and just can carry out when when carrying out changeing tight the second time, extracting crow bar out, and can not rotate by continuous drive winch axle, it is in use very inconvenient that repeating like this extract out to be inserted crow bar, thereby increased labor content.

The crow bar manufacturer that has improves the crow bar head in order to change above-mentioned problem, has increased by an auxiliary gear transmission device at the crow bar head, reaches the purpose of the continuous rotation of crow bar by the one-way movement of gear.Structure has although it is so avoided the extraction of crow bar to insert, but difficulty of processing is big, also makes commentaries on classics tape spool spindle nose increase length, and cost is increased; Owing to be the structure of end face combination, just there is the problem of reliability, poor stability in use; Also have such complex structure, manufacturability is poor, and manufacturing cost is very high, and own wt is very big, the waste resource.

How to realize to make crow bar not extract out inserting and continuous drive winch axle, crow bar head simple in structure are the problems that technical personnel will solve.

Summary of the invention

The utility model technical issues that need to address have provided a kind of winch and have rotated crow bar with disengaging type, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: crow bar axle, crow bar head; Connection between described crow bar axle and the crow bar head can be fixing or removably connect; Described crow bar head comprises a pawl base, pawl axis, bearing pin; Described pawl axis upper end by screw and pawl base link together, its lower end and bearing pin join; Described bearing pin passes the lock ring that is fixed in the pawl axis; Described lock ring is fixed on the described pawl axis by the tapered end dowel fixes and by the pull bar spring; In described tapered end pin upper end push rod is installed; Described pawl axis comprises; 2 ratchets, ratchet steel ball and with corresponding 2 pull back springs of ratchet; Comprising more than 4 and the pawl slot ratchet correspondence position on the inner periphery of pawl base; The described pawl slot depth is from shallow to deep in the counterclockwise direction; Described pawl axis upper end links together by screw and pawl base;

Compared with prior art, the beneficial effects of the utility model are: when using this crow bar to rotate the winch axle, can extract out repeatedly and insert crow bar and can continuous rotation winch axle, realize binding goods, and simple and effective.

Description of drawings

Fig. 1 is the crow bar structural representation of prior art;

Fig. 2 is an architecture scheme drawing of the present utility model;

Fig. 3 is the cutaway view of Fig. 2;

Fig. 4 is the part exploded perspective view of Fig. 2;

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

By Fig. 2, Fig. 3, Fig. 4 as seen: the utility model comprises: crow bar axle 10, crow bar head 20; Connection between described crow bar axle 10 and the crow bar head 20 can be fixing or removably connect; Described crow bar head 20 comprises a pawl base 201, pawl axis 211, bearing pin 4; Described pawl axis 211 upper ends by screw 202 and pawl base 201 link together, its lower end and bearing pin 4 join; Described bearing pin 4 passes the lock ring 212 that is fixed in the pawl axis 211; Described lock ring 212 is fixed and is fixed on the described pawl axis 211 by pull bar spring 205 by tapered end pin 204; In described tapered end pin 204 upper ends push rod 203 is installed; Described pawl axis 211 comprises: 2 ratchets 210, ratchet steel ball 209 and with corresponding 2 pull back springs 208 of ratchet; Comprising more than 4 and pawl slots 213 ratchet 210 correspondence positions on the inner periphery of pawl base 201; Described pawl slot 213 depths are from shallow to deep in the counterclockwise direction;

Pawl slot 213 on the described pawl base 201 is 8, and is equal distribution on pawl base 201;

Described tapered end pin 204 links together by the end face riveted with lock ring 212, and the end of tapered end pin is the step circular shaft, and described pull bar spring 205 step is therewith justified a contacts side surfaces and is against on the stepped hole of pawl axis 211; The end of tapered end pin is to also have tapped bore on the step circular shaft, and push rod 203 links together by this tapped bore and tapered end pin 204.

Described ratchet pawl axis 211 also comprises a dustproof little O type rubber ring 206 and a dustproof big O type rubber ring 207 respectively on the two place's axle journals that contact with pawl base 201.

The utility model will have the applied in any combination of pawl base, ratchet and pawl axis of pawl slot in the crow bar head, because design has more than 4 with the pawl slot of anticlockwise direction by shallow and dark transition on the pawl base, pawl base, ratchet and pawl axis just have been combined to form a crow bar head with clutch function.

Be installed in 2 high strength ratchets and spring in the pawl axis respectively; The pawl base of packing into is connected stop screw again with pawl axis, the crow bar axle that is welded with the high strength screw rod links together with screw rod and pawl base, forms the crow bar with clutch function.

When rotating the crow bar axle, when radially rotating in a clockwise direction, to shallow motion, compressing is contained in ratchet in the pawl base and overcomes spring force and contract the formation separation function in realizing the pawl slot in the pawl base by deeply; When rotating the crow bar axle, when radially rotating with anticlockwise direction, the pawl slot in the pawl base to dark motion, ejects the ratchet that is contained in the pawl base by shallow under the effect of spring force, realizes combined function.Driving ratchet shaft rotates together, ratchet shaft is enclosed within on the winch spindle nose and with bearing pin (bearing pin can by clip break away under the effect of spring be locked at the crow bar head on) pass winch spindle nose hole and be connected with ratchet shaft, just can realize driving the rotation generation commentaries on classics band function of winch axle; When crow bar back and forth rotates with this, just obtained continuous taut band effect.

Claims

1. a winch rotates crow bar with disengaging type, comprising: crow bar axle (10), crow bar head (20); Connection between described crow bar axle (10) and the crow bar head (20) can be fixing or removably connect; It is characterized in that: described crow bar head (20) comprises a pawl base (201), pawl axis (211), bearing pin (4); Described pawl axis (211) upper end by screw (202) and pawl base (201) link together, its lower end and bearing pin (4) join; Described bearing pin (4) passes the lock ring (212) that is fixed in the pawl axis (211); Described lock ring (212) is fixed, also is fixed on the described pawl axis (211) by pull bar spring (205) by tapered end pin (204); In described tapered end pin (204) upper end push rod (203) is installed; Described pawl axis (211) comprising: 2 ratchets (210), ratchet steel ball (209) and with corresponding 2 pull back springs of ratchet (208); Comprising more than 4 and pawl slot (213) ratchet (210) correspondence position on the inner periphery of pawl base (201); Described pawl slot (213) depth is from shallow to deep in the counterclockwise direction.

2. winch according to claim 1 rotates crow bar with disengaging type, it is characterized in that: the pawl slot (213) on the described pawl base (201) is 8, and is equal distribution on pawl base (201).

3. winch according to claim 1 rotates crow bar with disengaging type, it is characterized in that: described tapered end pin (204) links together by the end face riveted with lock ring (212), the end of tapered end pin is the step circular shaft, and described pull bar spring (205) step is therewith justified a contacts side surfaces and is against on the stepped hole of pawl axis (211); The end of tapered end pin is to also have tapped bore on the step circular shaft, and push rod (203) links together by this tapped bore and tapered end pin (204).

4. rotate crow bar according to claim 1 or 2 or 3 described winches with disengaging type, it is characterized in that: described ratchet pawl axis (211) with two place's axle journals that pawl base (201) contacts on also comprise a dustproof little O type rubber ring (206) and the big O type rubber ring (207) that prevents dust respectively.