CN2176410Y - Pliers-like lock - Google Patents

Abstract

The utility model relates to a pliers type hanging lock which is formed by the way that two locking hooks which form bent arc shapes and are symmetrically arranged are pivoted by using a pivot pin, and a lock body is fixedly connected with the releasing end of any locking hook. The free end of the lock body is used for clamping with the opening end of the other locking hook to form an opened or closed state. The utility model has the advantages of simple structure, convenient use and uneasy loosening between two locking hooks.

Description

Pliers-like lock

The utility model relates to lockset, refers to a kind of jaw type padlock especially, and this padlock is tied two arcuation latch hooks by a trunnion pivot, and sets firmly a lock body in arbitrary latch hook end, cooperates with lock body for another latch hook end to be jaw type and to fasten locking or undo the lock.

A kind of common being used to be locked on bicycle or the locomotive wheel rim padlock as shown in Figure 6, it comprises the lock tube of a cover tubular, establishes core in lock tube one end, and is built in the lock tube with a drawing piece, the one end is linked to the core end and is subjected to the core driven rotary; Respectively be drilled with a latch hook jack in lock tube appropriate position, two ends, the latch hook of one U-shaped latch hook jack since then inserts back turn core, thereby drive drawing piece turn clip on the clamping groove of latch hook end pin, or the turn core is pulled drawing piece and latch hook is broken away to reach the purpose that undoes the lock to separate.This kind lockset has following inconvenience on using:

(1) because in opening and closing the process of lock, latch hook and lock tube all need to break away from fully and then align latch hook and latch hook jack more again and pull with the row lock or take care of, and except that process is miscellaneous, especially more are difficult to open and close lockset night during bad visibility.

(2) when locking because the two ends pin of latch hook must pass between the wheel rim of wheel rim, and when wearing on shock absorber, be the best, but when the unfavorable latch hook plant in the stagnation position of wheel rim, then must mobile wheel rim, so will cause user's inconvenience.

For addressing the above problem, be to have the dealer to propose a kind of padlock (as shown in Figure 7) of improvement, it comprises the lock tube of a cover tubular, side in the lock tube is established one by a pivot joint block and the riveting of lock tube, and activity is pivoted with a U-shaped latch hook on pivot joint block, this latch hook can be 90 ° of upsets, opposite side in the lock tube sets firmly a core, the then affixed drawing piece of this core front end, go up the appropriate position in the lock tube simultaneously and be drilled with a latch hook jack, when latch hook not under the release lock tube situation, by the upset latch hook make its an end pin of pivot knot insert in latch hook jack, and then be subjected to core to drive drawing piece and the clip latch hook forms the lock state of pulling; And when the turn core made drawing piece form release conditions to latch hook end pin, the latch hook that then overturns made its end pin break away from the latch hook jack, and was that rotating shaft makes latch hook turn up 90 ° with the end pin of another pivot knot, formed the state that undoes the lock.Though this kind lockset still has following inconvenience than the padlock tool progressive of the first kind:

(1) in opening and closing the process of lockset, because the U-shaped latch hook must be around in the wheel rim, and be to walk around the curved arc section again after wearing earlier, increased the chance of latch hook and wheel rim friction, and then cause the polyvinyl chloride layer breakage that is coated on the latch hook or dirty operator's hand with straight section.

(2) when sealed two wheel bodys of lockset desire, and two wheel bodys are non-with parallel surface the time, will increase difficulty fully when then the U-shaped latch hook desires to pass through two wheel rims.

(3) because the U-shaped latch hook only can be done about 90 ° upset, thereby the process that wears is also complicated.

The lockset of another kind of improvement as shown in Figure 8, it is socketed to form by left and right ring arm, an end of left side ring arm sets firmly one

The font hollow cylinder, the tube Inner Front End has been engraved a circular hole, is provided with a spring and in the circular hole and buckles button, and the core that this button button is built in an interior rear end drives flexible; One end of right ring arm is then one-body molded with a hollow cylinder, and this hollow cylinder then is sheathed on left side ring arm On the font hollow cylinder, and be provided with a concealed circular hole in the hollow cylinder of right side ring arm, so whether the fastening of being detained button by concealed circular hole makes left and right ring arm be closure or openness.Still there is following shortcoming in this kind lockset:

(1) member is too complicated, and the projection of right ring arm is higher in the forming process difficulty, and whole cost is also higher.

(2) when opening, because the separated attitude of left and right ring arm, and the button button also is and conceals into state, thereby right ring arm is very easily broken away from by the hollow cylinder place with left side ring arm.

(3) when closure state, because an end of left and right ring arm only plugs together (non-engaging with a projection and a spring, because of ring arm in the right side needs to make stressed flicking when the opening by spring), thereby the thief only needs to insert application of force twisting with a body of rod between left and right ring arm and can make left and right ring arm disengaging.

The purpose of this utility model is improved at the defective work that above-mentioned three kinds of existing padlocks exist in design, proposes a kind of jaw type padlock.

The jaw type padlock that the utility model proposes is done by symmetrically arranged two arcuation latch hooks, a trunnion and lock body institute structure, wherein:

First latch hook is the curved arc shape, is provided with a pin-and-hole in the one end, and the other end then is provided with a draw-in groove and its termination is set as awl group face;

Second latch hook also is the curved arc shape, is provided with a pin-and-hole in the one end, and the other end is the fixing latch hook sleeve pipe of lock body then;

Trunnion is arranged in the pin-and-hole of latch hook and makes its exposed junction riveting flat, and described latch hook can this trunnion be axle center and turn;

Lock body is one in the tubular body of axial tool one terrace through hole, its end can set firmly a cock body, moulding one protruding wall on this cock body, then cut the caulking groove of establishing a skew on the protruding wall, on the pipe shaft of lock body radially the appropriate position offer a breach, and follow this breach outer rim solid welding one bottom and have latch hook sleeve pipe with the sizable breach of described breach, this latch hook sleeve pipe is a hollow tube, its internal diameter of tube body is slightly larger than the diameter of latch hook, and an end of latch hook wears in it and solid welding is integral; A torque spring, a locking bolt and a core then can be inserted in regular turn in the hollow part of lock body.

Details are as follows to the utility model below in conjunction with preferred embodiment and accompanying drawing, among the figure:

Fig. 1 is a stereo appearance figure of the present utility model;

Fig. 2 is a three-dimensional exploded view of the present utility model;

Fig. 3 is an expansion schematic diagram of the present utility model;

Fig. 4-the 1st, the initial actuating schematic diagram of the utility model lock operation;

Fig. 4-the 2nd, the schematic diagram of latch hook compressing locking bolt during the utility model lock operation;

Fig. 4-the 3rd, the schematic diagram of the locking bolt return clip latch hook of the utility model lock operation;

Fig. 4-the 4th, the utility model is in the schematic diagram of blocking;

Fig. 5-the 1st, the initial actuating schematic diagram of another embodiment lock operation of the utility model;

Fig. 5-the 2nd, the schematic diagram of latch hook pressuring spring and clip state during another embodiment lock operation of the utility model.

Fig. 5-the 3rd, the action schematic diagram that undoes the lock of another embodiment of the utility model;

Fig. 6, Fig. 7 and Fig. 8 are the schematic diagrames of existing padlock.

See also Fig. 1 and Fig. 2, the utility model is done by two arcuation latch hooks 1,2, trunnion 3 and 4 structures of lock body, wherein:

Latch hook 1 is the curved arc shape, is provided with a pin-and-hole 11 in the one end, and the other end then is provided with a draw-in groove 12 and the termination is set as awl dials face 13;

Latch hook 2 also is the curved arc shape, is provided with a pin-and-hole 21 in the one end, and the other end then is welded on the latch hook sleeve pipe 43 of lock body 4;

Trunnion 3 is arranged in the pin-and- hole 11,21 of latch hook 1,2 and makes its exposed junction riveting flat, and latch hook 1 and 2 can be the axle center turn by this trunnion 3;

Lock body 4 is one in the tubular body of axial tool one terrace through hole, its end can set firmly a cock body 41, moulding one protruding wall 411 on this cock body 41, then cut the caulking groove 412 of establishing a skew on the protruding wall 411, on the pipe shaft of lock body 4 radially the appropriate position offer a breach 42, and follow this breach 42 outer rim solid weldings one bottom and have latch hook sleeve pipe 43 with breach 42 sizable breach 431, latch hook sleeve pipe 43 is a hollow tube, its internal diameter of tube body is slightly larger than the diameter of latch hook 1,2, makes an end of latch hook 2 can wear in it and the solid welding one; The hollow part of lock body 4 then can be inserted a torque spring 44, a locking bolt 45 and a core 46 in regular turn, wherein:

Two toggles, 441,442 staggered angles of torque spring 44 embed in the caulking groove 412 of cock body 41 toggle 441, and another toggle 442 then embeds in the caulking groove 453 of locking bolt 45 bottoms;

Locking bolt 45 is cylinders, cuts on it and establishes a tangent plane 451, and front end is then established a draw-in groove 452 and supplied core 46 cards to end, and makes locking bolt 45 driven by core 46, also offers a caulking groove 453 in the end of locking bolt 45 in addition and supplies toggle 442 embeddings of torque spring 44 to end;

Core 46 is general common lock core structures, so do not repeat them here.

The utility model that said modules constituted can be divided into following two big main bodys in operation:

(1) latch hook 1,2 opens and closes action (seeing also Fig. 3), the user is that two latch hooks 1,2 are opened in the axle center with the pivot node of trunnion 3, then latch hook 1,2 is fastened on by on the locking thing with the tong-like action, and when fastening, the termination of latch hook 1 penetrates latch hook sleeve pipe 43 and fastens with lock body 4.

(2) core open and close action:

1. see also Fig. 4-1, because staggered angles of two toggles 441,442 of torque spring 44 and respectively in the caulking groove 453 of the embedding caulking groove 412 that terminates in cock body 41 and locking bolt 45, thereby also deflection one angle of the tangent plane 451 that also makes locking bolt 45, this moment, torque spring 44 was the outer ultimate limit state of opening.

2. see also Fig. 4-2, when latch hook 1 follows 43 insertions of latch hook sleeve pipe, at first latch hook 1 termination is borrowed awl to pull out face 13 and is pushed locking bolt 45 dextrorotation (this moment, torque spring 44 was twisted and reduced), until the draw-in groove 12 of latch hook 1 locking bolt 44 is discharged, and then cause locking bolt 45 homings and be limited in the draw-in groove 12.

3. see also Fig. 4-3 and Fig. 4-4, when latch hook 1 is ended the back by card and when desiring to be pulled outwardly, because draw-in groove 12 is subjected to the shaft block of pin 45 and can't draws outward.

4. when undoing the lock, then turn core 46 drive locking bolts 45 dextrorotation to the tangent plane 451 of locking bolt 45 be level allow latch hook 1 by the time, then can spur latch hook 1 and recess lock body 4 and finish the action that undoes the lock.

For making things convenient for the customer to use, the utility model also can be designed to following structure (see also Fig. 5-1 to Fig. 5-3:

Locate to attack to establish a screw 22 in axle center, the termination of latch hook 2 (promptly inserting an end of latch hook sleeve pipe 43 and solid welding), and then a spring 23 is fixed at this with screw 24, the opposite side of spring 23 is then established the iron plate 25 of a diameter less than latch hook sleeve pipe 43 calibers, whereby, when latch hook 1 inserts latch hook sleeve pipe 43 and clip on locking bolt 45 time, spring 23 and iron plate are by compression, and when opening, spring 23 and iron plate 25 will make latch hook 1 be ejected a segment distance, and release need be controlled the opening of locking bolt 45 on the other hand, and the inconvenience that another hand is pulled out latch hook 1 again, thereby reach the convenient purpose of using of customer.

In sum, the utility model is compared with existing lockset, has following effect and advantage:

(1) compares with lockset shown in Figure 6

(1) in opening and closing the lock process, latch hook of the present utility model does not need to separate fully with lock body.

(2) fastened by two side direction objects owing to two latch hooks of the present utility model are jaw type, and the stagnation position of wheel rim can't bring inconvenience to snap action.

(2) compare with lockset shown in Figure 7

(1) because two latch hooks is the tong-like fastening, so do not need as the U-shaped latch hook, to be around in the wheel rim.

(2) when latch hook wants to be arranged in the wheel body wheel rim of two row's parallel surfaces, only need two latch hooks are pulled open to angle as shown in Figure 3, can directly connect two wheel rims in order to fastening.

(3) fasten and can pull open to about angle as shown in Figure 3 owing to latch hook is jaw type, so wear by the locking thing more or less freely.

(3) compare with lockset shown in Figure 8

(1) the utility model member is comparatively simple and easy, the forming process difficulty is low, and cost of production is lower.

(2) unexpected the getting loose of two latch hooks of the present utility model.

(3) rivet clasp is certain between two latch hooks of the present utility model, unexpected being pried open.

Claims (7)

1, a kind of jaw type padlock, it comprises that two are symmetrically arranged latch hook, and this two latch hooks inseparable away from the end activity is pivoted is characterized in that the fixed lock body of near-end of arbitrary latch hook, this lock body provides a duct for another latch hook clip locking, makes padlock be tong-like and fastens.

2, according to the described jaw type padlock of claim 1, what it is characterized in that two latch hooks is respectively equipped with a pin-and-hole away from end, and ties with the movable pivot of a trunnion.

3, according to the described jaw type padlock of claim 1, it is characterized in that near-end not the latch hook of fixed lock body be provided with a draw-in groove in its near-end, and make this termination be set as awl to pull out face.

4,, it is characterized in that the near-end that near-end sets firmly the latch hook of lock body plugs in the latch hook sleeve pipe that is welded on the lock body, and carry out solid welding in its exposed junction according to the described jaw type padlock of claim 1.

5, according to claim 1 or 4 described jaw type padlocks, it is characterized in that the near-end of latch hook is axially arranged with a screw, the spring that sets firmly an iron plate for an end borrows a screw spiral shell provided thereon.

6, according to the described jaw type padlock of claim 1, it is characterized in that shank is the tubular body of a hollow, the one end is sealed with a cock body, axially be set as the through hole of tool one terrace, and can insert a spring, locking bolt and core in regular turn, and radially offer a breach in the pipe shaft end, this breach and through hole connect, again in the latch hook sleeve pipe of horizontal solid welding one hollow tubular of indentation, there.

7, according to claim 1 or 6 described jaw type padlocks, it is characterized in that lock body also comprises:

One cock body is closed in lock body through hole end and makes it be the blind hole shape, and in its inboard moulding one protruding wall, then cuts the caulking groove of establishing a skew on the protruding wall;

One latch hook sleeve pipe is a hollow tube, and a breach is also offered in the bottom, is welded in two breach are connected, and an end opening of latch hook sleeve pipe wears and solid welding for a latch hook, and the opposite side opening then snaps in for another latch hook and locking bolt fastens;

One torque spring, the toggle that tool two interlocks, wherein a toggle embedding terminates in the caulking groove of cock body, and another toggle embedding terminates in the caulking groove of locking bolt bottom;

One locking bolt is a cylinder, cuts in shaft and establishes a tangent plane, ends for the core card and is subjected to transmission and establish a draw-in groove in front end, and the terminal caulking groove of also offering ends for the toggle embedding of torque spring, the tangent plane of pin follow embedding terminate in cock body toggle deviation angle and be offset;

One core.

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