CN201406884Y - Single guide-rod type theft-proof lock - Google Patents

Abstract

The utility model discloses a single guide-rod type theft-proof lock which comprises a lock sleeve, a lock core, an elastic sheet, a guide and a rotary sheet; a brake groove and a circumferential groove in clearance fit with a lug boss of a guide rod are symmetrically arranged at the front end of an inner hole of the lock sleeve from up to down; a dovetail groove in clearance fit with the guide rod is arranged along the axial direction at a single side of the outer surface of the lock core; and at least one row of toothspaces in clearance fit with brake teeth of the guide rod are symmetricallyarranged on the two sides at one end of the elastic sheet from up to down. Spring blind holes radially communicated slot holes of the elastic sheet are arranged below the dovetail groove at one sidein the radial direction of each slot hole of the elastic sheet of the lock core. The lock sleeve consists of a front lock sleeve and a back lock sleeve, which are matched and connected with each otheron the same axis. The lock core limits the axial degree of freedom by step holes at the front end of the front lock sleeve and the step holes at the back end of the back lock sleeve. The single guide-rod type theft-proof lock changes the original double guide-rod type theft-proof lock into the single guide-rod type theft-proof lock to cancel excess functions, which obviously simplifies the structure so as to better adapt to the requirements of processing technique, thereby reducing the product cost and improving the assembling efficiency.

Description

Single guide rod type anti-theft lock end

Technical field

The utility model relates to a kind of anti-theft lock end, refers to a kind of single guide rod type anti-theft lock end especially.

Background technology

A kind of clip type anti-theft lock (number of patent application: 200710160958.7, publication number: CN101196085), disclosed major technique content is: known parts mainly comprise lock tube (claiming tapered end in this patent), lock core, shell fragment, and non-known parts comprise circular control strip, guide rod.Feature mainly shows: 1, radial symmetric is provided with two axial notches on the lock tube inwall, and its radial width matches with the radial width of the braking projection of shell fragment and guide rod; End near keyhole on the inwall of lock tube is provided with circumferential recess, matches with the braking projection axial width of guide rod; 2, be provided with circular control strip between the end cap of lock tube and lock core, its middle part is provided with keyhole, and the inboard of circular control strip is provided with the V-shaped groove that matches with (V-arrangement) projection of guide rod front end; 3, lock core is arranged with two axially dovetail grooves that cooperate with guide rod of trend up and down, is provided with a plurality of rectangle shell fragment slotted eyes that match with shell fragment in lock core, and the shell fragment slotted eye is separated by dividing plate; 4, be arranged with the guide rod brake tooth that matches with the teeth groove at two ends, shell fragment both sides on two medial surfaces of guide rod, the shell fragment groove between adjacent two guide rod brake tooths is corresponding with the thickness of shell fragment.Though this clip type anti-theft lock has superior theftproof performance, there are the following problems:

1, the more complicated that structurally seems.Upper and lower two guide rods that two dovetail grooves arranged and be mated of lock core; Shell fragment is upper and lower all teeth groove; To be provided with two axial notches that cooperate with shell fragment in that lock tube is upper and lower.Complicated structure is brought a lot of difficulty to cost, technology, assembling, cooperation etc. undoubtedly.

2, analyze from value engineering, the system control function of single guide rod is basic identical with the system control function of two guide rods.The system control function of single guide rod is necessary function, and the system control function of another guide rod is superfluous function.Subduing superfluous function, is to reduce one of product cost important channel.

3, the double swallow tailed groove of lock core, shell fragment hole and guide rod quality of fit are had relatively high expectations.Not only the size of the upper and lower teeth groove of shell fragment that cooperates with it is subjected to strict restriction, has increased the difficulty of processing of technology to shaped piece simultaneously.Inapplicable lower cost processing technology.

4, expensive processing technology such as metallurgical powder injection moulding, not only processing cost height, less to the range of choice of lower cost materials causes material cost and processing cost too high, directly influences selling price.

5, complex structure can cause also that the assembly difficulty that caused because of quality of fit requirement height is big, installation time is long, directly influences production efficiency of products.

Summary of the invention

The purpose of this utility model is that a kind of single guide rod type anti-theft lock end will be provided, and changes single guide rod into by original two guide rods, cancels superfluous function.By simplified structure, in the hope of adapting to lower cost processing technology, reduce product cost and assembly difficulty, shortening installation time, improve production efficient.

For realizing described purpose, the utility model adopts following technical scheme: described single guide rod type anti-theft lock end comprises lock tube, the lock core that cooperates with lock tube, the shell fragment that cooperates with lock core shell fragment slotted eye, radial symmetric is provided with two axial notches parallel with axis on described lock tube inwall, the revolving fragment that lock core front end in lock tube is provided with, the guide rod that cooperates with the lock core dovetail groove, the guide rod front end is provided with brake block, guide rod vertically is provided with a plurality of shell fragment grooves, both sides between shell fragment groove and the shell fragment groove are provided with the guide rod brake tooth, be arranged with the detent recess 23 that cooperates with guide rod boss 3 up and down at lock tube endoporus front end, on the lock tube inwall, be provided with the circumferential recess that cooperates with the guide rod boss, with revolving fragment, shell fragment, the key that lock core cooperates, on revolving fragment, be provided with the v-depression that cooperates with the brake block of guide rod.Be axially arranged with a dovetail groove with the guide rod matched in clearance in that the lock core cylindrical is one-sided; Also be provided with the teeth groove of at least one row and guide rod brake tooth matched in clearance from top to bottom in the two sides of described shell fragment one end symmetry.Below the dovetail groove of the radially side of each shell fragment slotted eye of lock core, be provided with the shell fragment slot aperture to the spring blind hole that communicates.Described lock tube is to be made of preceding lock tube and back lock tube, and is connected on same axis, and the rear end that the front end of preceding lock tube is provided with a stepped hole less than the revolving fragment diameter, back lock tube is provided with a stepped hole less than lock core diameter.Be provided with double wedge two v-depressions on described revolving fragment, v-depression cooperates with the brake block of guide rod; Or on described revolving fragment, being provided with a v-depression, v-depression cooperates with the brake block of guide rod.Be provided with a detent recess at preceding lock tube endoporus front end, the guide rod boss cooperates with detent recess.Described detent recess and the laterally zygomorphic axial notch of back lock tube are in the position of the same plane of symmetry, and the width unanimity.

Lock core and revolving fragment coaxial line also together cooperate with the lock tube endoporus that preceding lock tube and back lock tube constitute.Axial notch in the dovetail groove of lock core and the lock tube is on the same plane of symmetry.Guide rod longitudinal separation is arranged with many row's guide rod brake tooths.Shell fragment cooperates with the shell fragment slotted eye of lock core, and simultaneously, its thickness cooperates with the shell fragment groove of guide rod brake tooth between axially again.Longitudinal separation is arranged a plurality of shell fragments and a plurality of shell fragment slotted eye that cooperates with shell fragment in the lock core.The teeth groove of each shell fragment one end cooperates with guide rod brake tooth on the guide rod.Under normal lock state, shell fragment to bottom offset, makes the shell fragment lower end cooperate with the axial notch of lock tube by spring, and lock core can not be rotated with cooperating of axial notch by shell fragment, is locking.Under normal opening, key at first inserts the keyhole at revolving fragment middle part, then enter the keyhole that is in each shell fragment in the lock core, the upper and lower side of shell fragment is on lock core and the rotation interface that the lock tube endoporus cooperates, shell fragment moves down with axial notch and cooperates under the prerequisite when guaranteeing locking, and the upper and lower side of shell fragment also can be slightly less than lock core diameter.Screw key then, revolving fragment is rotated a certain angle, the brake block that promotes on the guide rod by the v-depression on the revolving fragment impels guide rod axial displacement, this moment each shell fragment two ends be in or less than the rotation interface on, make each brake tooth of guide rod enter the teeth groove of each shell fragment, the boss on the guide rod breaks away from the detent recess of lock tube, enters circumferential recess, by the key rotary locking cylinder, reach the purpose of unlatching then.

In the technical unlocking process without key, following phenomenon can appear:

1, use special tool(s), adopt traditional technical unlocking means, i.e. attempt relies on friction one by one each shell fragment to be chosen the rotation interface location.Desire produces friction and has only an approach, and lock core is rotated to an angle, and makes the shell fragment slotted eye of shell fragment and lock core produce friction.Yet lock core places the back position of revolving fragment, and anteposition is a revolving fragment.Usually turn revolving fragment, lock core can not rotate at all, just can not cause lock core and shell fragment to produce friction yet.

2, turn revolving fragment and also can cause guide rod axial displacement,, lock shell fragment, more can not reach the purpose of unlatching by the length travel of guide rod brake tooth restriction shell fragment.

If 3 avoid revolving fragment, directly rotary locking cylinder not only has certain depth, and is difficult to operation.Even can operate, the boss on the guide rod cooperates with detent recess on the lock tube, and the rotation of restriction lock core can not make shell fragment and lock core produce frictional force equally.So do not reach the purpose of unlatching yet.

The utility model makes former pair of guide rod anti-theft lock end change single guide rod type anti-theft lock end into by the simplification of structure.Cancel superfluous function.Structure is obviously simplified, and two guide rods change teeth groove that single guide rod, shell fragment two ends be provided with into and change that an end is provided with teeth groove, dovetail groove that former lock core tow sides are provided with only changes into and is being provided with a dovetail groove in one side into.

The result who is brought is: 1, because the restriction of technology all must be passed through the accessory that expensive powder metallurgy injection molding technique is processed originally, part realizes by the lower cost hot press forming technology.2, the simplification of structure has reduced product cost effectively.3, obviously simplify assembly difficulty, shortened installation time, improved production efficiency of products.4, the whole theftproof performances before the change have been kept simultaneously.

Description of drawings

Fig. 1 is the utility model embodiment assembling drawing.

Fig. 2, be lock tube full sectional view behind the utility model embodiment.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is a lock tube right view before the utility model embodiment.

Fig. 5 is the complete section front view of Fig. 4.

Fig. 6 is the complete section front view of the utility model embodiment lock core.

Fig. 7 is the vertical view of Fig. 6.

Fig. 8 is the sectional view of the A-A of Fig. 6.

Fig. 9 is the sectional drawing of the B-B of Fig. 6.

Figure 10 is that the C of Fig. 6 is to view.

Figure 11 is the vertical view of the utility model embodiment guide rod.

Figure 12 is the sectional view of the E-E of Figure 11.

Figure 13 is the sectional view of the F-F of Figure 11.

Figure 14 is the complete section front view of the utility model embodiment guide rod.

Figure 15 is that the G of Figure 11 is to view.

Figure 16 is the front view of the utility model embodiment shell fragment.

Figure 17 is the full sectional view of Figure 16.

Figure 18 is the H-H sectional view of Figure 16.

Figure 19 is the front view of the utility model embodiment revolving fragment.

Figure 20 is the complete section left view of Figure 19.

Figure 21 is the I-I sectional view of Figure 19.

Figure 22 is the utility model subssembly drawing.

Figure 23 is the utility model subssembly drawing.

The center line 41-V connected in star 42-keyhole 43-double wedge 44-circumferential recess that sleeve spring 15-screw 16-lock core 17-key 18-axial notch 19-stepped hole 20-lock core hole 21-assembling groove 22-stepped hole 23-detent recess 24-rotates film perforation 25-dovetail groove 26-keyhole 27-shell fragment slotted eye 28-spring blind hole 29-spring base 30-spring shoulder 31-declutch shift shaft 32-shell fragment groove 33-spring base 34-guide rod brake tooth 35-brake block 36-keyhole 37-spring base 38-teeth groove 39-teeth groove baseplane 40-keyhole among the cover 12-rear lock core 13-marble hole 14-among the lock tube 7-guide rod spring 8-shift fork 9-shaft coupling 10-shaft coupling 11-behind the lock tube 2-revolving fragment 3-guide rod boss 4-shell fragment 5-guide rod 6-before mark among the figure: the 1-

The specific embodiment

As shown in Figure 1.This is the embodiment that the utility model is used for the horizontal lock core on security door or the interior door.Lock tube 1 before comprising, cooperate the back lock tube 6 that docks with preceding lock tube, be installed in the lock core 16 in the lock tube, be installed in the revolving fragment 2 between lock core and the preceding lock tube, be installed in the guide rod 5 in the dovetail groove of lock core top, be installed in the shell fragment 4 in the lock core, the guide rod boss 3 of guide rod front end, the guide rod rear end promotes the vertically guide rod spring 7 of reach of guide rod, the shift fork 8 that cooperates with the lock core outer shaft, the shaft coupling 9 that cooperates with shift fork and lock core outer shaft, 10, the rear lock core 12 that cooperates with the back lock tube, be installed in middle cover 11 and spring 14 in the rear lock core, the pellet shot from a slingshot hole 13 that back cylinder lock puts is corresponding with the pellet shot from a slingshot hole of rear lock core.Key 17 cooperates with keyhole on revolving fragment 2, lock core 16, the shell fragment 4.The middle part of lock tube is provided with the fixedly screw 15 of usefulness.

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in.Single guide rod type anti-theft lock end, by the lock tube that preceding lock tube 1 and back lock tube 6 coaxial cooperation butt joint constitute, circumferential recess 44 is circumferential grooves of being reserved by preceding lock tube and lock tube butt joint back, back, its axial width is greater than the axial width of guide rod boss 3.Pass through lock core hole 20 and lock core 16 matched in clearance in the lock tube.The revolving fragment 2 that lock core front end in lock tube is provided with, it and lock pin coaxial are traditional thread binding fit over before the front end of lock tube, and by diameter less than the revolving fragment diameter, be positioned at before the stepped hole 22 of lock tube front end limit the degree of freedom of the play forward of lock core and revolving fragment.On the lock tube of back, the lock core stepped hole 19 that freely passes through of axial float backward limits.Be arranged with axial notch 18 up and down in the back lock tube 6, provide necessary up and down space to shell fragment.Preceding lock tube endoporus front end is arranged with the detent recess 23 that cooperates with guide rod boss 3 up and down; Or preceding lock tube endoporus front end is provided with a detent recess 23 that cooperates with guide rod boss 3.Described detent recess 23 is arranged with the position that axial notch 18 is in the same plane of symmetry up and down with the back lock tube, and the width unanimity.Be provided with a rotation film perforation 24 near stepped hole 22 and detent recess 23 between axially at preceding lock tube, rotate film perforation and revolving fragment 2 matched in clearance.

As Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, shown in Figure 15.Lock core 16 tops are provided with a dovetail groove 25, and it and guide rod 5 assemblings are matched in clearance also, and guide rod 5 is moved axially in dovetail groove 25.In lock core, evenly be spaced a plurality of shell fragment slotted eyes 27.The line of symmetry of the keyhole 26 in shell fragment slotted eye and the dividing plate is vertical with the baseplane of dovetail groove.Below the dovetail groove of the radially side of each shell fragment slotted eye 27 of lock core, be provided with the shell fragment slot aperture to the spring blind hole 28 that communicates.Be provided with spring base 29 in each spring blind hole upper end.Be provided with spring shoulder 30 at the dovetail groove right-hand member.Between the spring base 33 of guide rod right-hand member and the spring shoulder 30 the guide rod spring is installed.The right-hand member of lock core is provided with declutch shift shaft 31, middle gap and shaft coupling 9 matched in clearance.Guide rod 5 front ends are provided with brake block 35 and the vertical and guide rod boss 3 guide rod baseplane.Guide rod boss 3 that is provided with and circumferential recess 44 and detent recess 23 matched in clearance on the lock tube inwall.Guide rod vertically evenly is intervally distributed with guide rod brake tooth 34 and shell fragment groove 32.

As Figure 16, Figure 17, shown in Figure 180.The two sides of one end of described shell fragment 4 are arranged with the teeth groove 38 of at least one row and guide rod brake tooth 34 matched in clearance from top to bottom.There is keyhole 36 at the middle part, and the distance between the center line 40 of keyhole and the shell fragment teeth groove baseplane 39 is a parameter, and is relevant with the teeth of key.It is the foundation of bitting.The height of the high decision in the center of each shell fragment keyhole 36 key teeth.Shell fragment one side is provided with a spring base 37, after the assembling, between the spring base 29 of the spring blind hole upper base on it and the lock core shell fragment spring is installed, and at lock-out state, shell fragment 4 relies on the shell fragment springs to enter the axial notch of lock tube below, to keep lock-out state.

The key 17 that cooperates with revolving fragment, shell fragment, lock core is provided with the v-depression 41 that cooperates with the brake block of guide rod on revolving fragment,

As Figure 19, Figure 20, shown in Figure 21.Described revolving fragment 2, the line of symmetry of revolving fragment respectively be provided with a v-depression 41 up and down, it cooperates with the V-arrangement brake block 35 of guide rod front end.

As Figure 22, shown in Figure 23.Be provided with a double wedge 43 and two v-depressions 41 on described revolving fragment, v-depression cooperates with the brake block of guide rod.The installment state of this moment is that the tooth 43 of revolving fragment contacts with guide rod brake block 35 and cooperates, and promptly each guide rod brake tooth of guide rod places the back position of each shell fragment, rotate revolving fragment after, guide rod is pushed ahead by the guide rod spring, and guide rod brake tooth and shell fragment teeth groove are meshed.If only be provided with a v-depression 41 on the described revolving fragment, the installment state of this moment is that revolving fragment v-depression 41 contacts with guide rod brake block 35 and cooperates, it is the anteposition that each guide rod brake tooth of guide rod places each shell fragment, after rotating revolving fragment, the rotation of revolving fragment, the V-arrangement brake block that promotes guide rod by v-depression moves after vertically, and guide rod brake tooth and shell fragment teeth groove are meshed.Its maximum displacement stroke equals the stroke that axially coincide of guide rod brake tooth and shell fragment teeth groove.

The utility model is in normal lock state, the lower end of shell fragment be in lock tube in the next axial notch cooperate.In normal opening, key at first inserts the keyhole at revolving fragment middle part, then enter the keyhole that is in each shell fragment in the lock core, the upper and lower side of shell fragment is on lock core and the rotation interface that the lock tube endoporus cooperates, screw key then, revolving fragment is rotated a certain angle, the brake block that promotes on the guide rod by the v-depression on the revolving fragment impels guide rod axial displacement, this moment, each shell fragment two ends was on the rotation interface, make each brake tooth of guide rod enter the teeth groove of each shell fragment, the boss on the guide rod breaks away from the detent recess of lock tube, enters circumferential recess, pass through the key rotary locking cylinder then, thereby reach the purpose of unlatching.

Claims (7)

1, a kind of single guide rod type anti-theft lock end, comprise lock tube (1,6), the lock core that cooperates with lock tube (16), the shell fragment (4) that cooperates with lock core shell fragment slotted eye, radial symmetric is provided with two axial notches parallel with axis (18) on described lock tube inwall, lock core front end in lock tube is provided with revolving fragment (2), the guide rod (5) that cooperates with the lock core dovetail groove, the guide rod front end is provided with brake block (35), guide rod vertically is provided with a plurality of shell fragment grooves (32), both sides between shell fragment groove and the shell fragment groove are provided with guide rod brake tooth (34), be arranged with the detent recess (23) that cooperates with guide rod boss (3) up and down at lock tube endoporus front end, on the lock tube inwall, be provided with the circumferential recess (44) that cooperates with the guide rod boss, with revolving fragment, shell fragment, the key (17) that lock core cooperates, on revolving fragment, be provided with the v-depression (41) that cooperates with the brake block of guide rod, it is characterized in that: be axially arranged with a dovetail groove (25) with the guide rod matched in clearance in that the lock core cylindrical is one-sided; Also be provided with the teeth groove (38) of at least one row and guide rod brake tooth matched in clearance from top to bottom in the two sides of described shell fragment one end symmetry.

2, single guide rod type anti-theft lock end as claimed in claim 1 is characterized in that: be provided with in the dovetail groove below of the radially side of each shell fragment slotted eye (27) of described lock core with the shell fragment slot aperture to the spring blind hole (28) that communicates.

3, single guide rod type anti-theft lock end as claimed in claim 1, it is characterized in that: described lock tube is to be made of preceding lock tube (1) and back lock tube (6), and on same axis, be connected, the rear end that the front end of preceding lock tube is provided with a stepped hole less than the revolving fragment diameter (22), back lock tube is provided with a stepped hole less than lock core diameter (19).

4, single guide rod type anti-theft lock end as claimed in claim 1 is characterized in that: be provided with a double wedge (43) and two v-depressions (41) on described revolving fragment, v-depression cooperates with the brake block of guide rod.

5, as claim 1 or 4 described single guide rod type anti-theft lock ends, it is characterized in that: be provided with a v-depression (41) on described revolving fragment, v-depression cooperates with the brake block of guide rod.

6, single guide rod type anti-theft lock end as claimed in claim 1, it is characterized in that: lock tube endoporus front end is provided with a detent recess (23) before described, and guide rod boss (3) cooperates with detent recess.

7, single guide rod type anti-theft lock end as claimed in claim 1 is characterized in that: described detent recess and the laterally zygomorphic axial notch of back lock tube are in the position of the same plane of symmetry, and the width unanimity.

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