CN201351390Y

CN201351390Y - Novel sheet-lining locking cam and key matched with the locking cam

Info

Publication number: CN201351390Y
Application number: CNU2009200506056U
Authority: CN
Inventors: 李吉源
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-22
Filing date: 2009-01-22
Publication date: 2009-11-25
Anticipated expiration: 2019-01-22

Abstract

The utility model relates to a novel sheet-lining locking cam and a key matched with the locking cam; the locking cam comprises an outer sleeve, an inner sleeve, locking sheets and a limit component; the inner wall surface of the outer sleeve is provided with a concave groove which can lead the locking sheets to be accurately coordinated, the limit component is internally provided with a clamping block which can slide between the inner sleeve and the outer sleeve, the surface corresponding to the key is provided with a step structure which pushes the locking sheets to coordinate with the concave grooves, and a concave position is arranged on the key for matching the clamping block of the limit component. In the allocation process of the practical key and the locking cam, by designing different step structures of the key and the position of the concave groove in the outer sleeve and designing different size of the clamping block of the limit component and the depth of the concave position on the key at the same time, the allocation of the key and the locking cam is realized. By utilizing the allocation function of the two limiting conditions, the quantity of step structures on the key can be effectively reduced, the clearances among all the steps are increase, therefore, the unlocking rate between the key and the locking cam is reduced and the anti-theft performance of products is promoted.

Description

The key of novel screening type tapered end and coupling thereof

Technical field

The utility model relates to the lock art, refers in particular to the key of a kind of novel screening type tapered end and coupling thereof, and it increases the number of the joining quantity of key and tapered end, reduces its mutual opening rate greatly.

Background technology

At present, the structure of known screening type tapered end can be with reference to shown in Figure 1, and its tapered end includes outer sleeve 1, inner sleeve 2, a plurality of locking plate 3 and a plurality of flexible member 4.Axially be provided with a plurality of on this outer sleeve 1 internal face and the short slot 1a locking plate equal number, a plurality of locking plates 3 and a plurality of flexible member 4 are arranged in the inner sleeve 2, rotate synchronously with inner sleeve 2.Wherein, the tail end of these a plurality of flexible members 4 is resisted against inner sleeve 2 rears respectively, and the front end pushing tow of the first corresponding flexible member is on first locking plate, pushing tow was on second locking plate after the front end of second flexible member passed the breach of first locking plate, pushing tow was on the 3rd locking plate after the front end of the 3rd flexible member then passed the breach of first locking plate and second locking plate, and the rest may be inferred.And the front end of distinguishing the key 5 of joining with it is provided with ledge structure 5a from low to high, the first step among this ledge structure 5a, second step, respectively corresponding aforementioned first locking plate of the 3rd step, second locking plate, the 3rd locking plate.

The operating principle of this screening type tapered end is, can drive inner sleeve 2 by the key that is complementary 5 that rotates insertions and rotate in outer sleeve 1, utilizes the rotation of inner sleeve 2 and the mating reaction of the interior corresponding component of other lockset, can realize the function of unblanking/locking.When key 5 did not insert, these a plurality of flexible members 4 were stacked on the anterior position of tapered end with each locking plate 3 pushing tow, and the stop part 3a and the short slot 1a of each locking plate 3 remain on staggered position, and each locking plate 3 and inner sleeve 2 are limited and can not rotate, and tapered end is in locking condition.When key 5 inserts, if the key that is complementary, just this each ledge structure 5a on the key can arrive the inside pushing tow of stop part 3a of each locking plate 3 the short slot 1a position of aforementioned correspondence respectively, at this moment, locking plate 3 and inner sleeve 2 are disengaged restriction, but tapered end is in unlocking condition, and key 5 can be opened lock; Otherwise if not the key that is complementary, each the ledge structure 5a on this key 5 can not be with the stop part 3a pushing tow of each locking plate 3 position to short slot 1a, and locking plate 3 and inner sleeve 2 are not disengaged restriction, and tapered end still is in locking condition.

Yet, aforementioned known screening type lock head structure has many weak points, in aforementioned screening type lock head structure, it is the number of joining that key and tapered end are realized in ledge structure 5a by difference is set and the short slot 1a position that matches, and the quantity of its number of joining promptly is decided by the number of ledge structure 5a on the key.When 1000 numbers of joining of needs, need on key 5, process the ledge structure 5a of 1000 kinds of differences, thereby its ledge structure 5a needs quite accurate dimensional requirement.For this reason, in the industry for reaching its accurate dimensional requirement, key 5 is had to make by the technology of Vehicle Processing, is so having a strong impact on the working (machining) efficiency of key 5, is unfavorable for market competition at present.In addition, when the number of joining quantity the more, the gap between its each step 5a is just little, will cause mutual opening rate to strengthen by this, influences the theftproof performance of its product.

The utility model content

In view of this, the utility model is at the disappearance of prior art existence, and its main purpose provides the key of a kind of novel screening type tapered end and coupling thereof, and it increases the number of the joining quantity of key and tapered end, reduces its mutual opening rate greatly.

For achieving the above object, the utility model adopts following technical scheme:

A kind of novel screening type tapered end, include outer sleeve, inner sleeve, a plurality of locking plate and a plurality of flexible member, inner sleeve is installed in the inner chamber of outer sleeve, axially be provided with a plurality of on this outer sleeve internal face and the short slot locking plate equal number, a plurality of locking plates and a plurality of flexible member are arranged in the inner sleeve, rotate synchronously with inner sleeve, wherein, the tail end of these a plurality of flexible members is resisted against on the inner sleeve, and the front end of a plurality of flexible members pushing tow respectively is characterized in that on each locking plate:

This outer sleeve is provided with at least one first containing hole that radially extends, and this first containing hole is communicated with the inner chamber of outer sleeve, and one first active fastening block is set in this first containing hole, and a reposition element pushing tow is on first active fastening block;

This inner sleeve is provided with at least one second containing hole that radially extends, this second containing hole is communicated with the inner chamber and aforementioned first containing hole of inner sleeve, one second active fastening block is set in second containing hole, the head of second active fastening block protrudes in the inner chamber of inner sleeve, limited step in second containing hole acts on the shoulder of second active fastening block, and the aforementioned first active fastening block pushing tow is in the root end face of second active fastening block;

During non-correct unlocking condition, the rotation that limits inner sleeve in second containing hole is gone in the first active fastening block part slippage, and perhaps, the rotation that limits inner sleeve in first containing hole is gone in the second active fastening block part slippage; During correct unlocking condition, the second active fastening block branch is arranged in second containing hole, first containing hole is returned in second active fastening block whole slippages of pushing tow first active fastening block under the impetus of key simultaneously, remove the restriction to inner sleeve of first active fastening block and second active fastening block, inner sleeve is in free rotation state.

As a kind of preferred version, described first containing hole runs through the inner chamber of outer sleeve with extraneous, the rigid inlet that is plugged in first containing hole of a steel ball.

As a kind of preferred version, described inner sleeve is formed by matrix and bonnet assembly, the open rearward end of this matrix, and this bonnet is encapsulated on the open rearward end of matrix.Be provided with the axial containing cavity that is used to hold and locate each flexible member in the matrix.

As a kind of preferred version, described flexible member and reposition element are compression spring.

As a kind of preferred version, described inner sleeve is packed into from the rear end of outer sleeve, has key port on the front end of inner sleeve, and this key port is provided with the breach that cooperates for the key block.

As a kind of preferred version, the head of described second active fastening block is hemispherical.

The key that a kind of and aforementioned tapered end is complementary, this surfaces of keys is provided with the ledge structure that is used for each locking plate of pushing tow, and the surface of key is provided with and is used for the recess that cooperates with the head of second active fastening block.

As a kind of preferred version, described recess is a hemispherical.

As a kind of preferred version, described surfaces of keys is provided with and is used for the block that cooperates with breach on the tapered end key port.

After the utility model adopts technique scheme, its beneficial effect is, the limit assembly that can limit the inner sleeve rotation equally is set by increase, make in the number of the joining process of actual key and tapered end, can be simultaneously step by difference is set and the position of short slot, and the limit assembly size of difference and on the key the recess degree of depth realize the number of joining of key and tapered end, combine the number of the joining limiting structure of two kinds of differences.For example, when 1000 numbers of joining of needs,, and then dispose the limit assembly size of 10 kinds of differences and the degree of depth of recess, just can reach the purpose of 1000 numbers of joining as long as in the ledge structure that processes 100 kinds of differences on the key.Thereby make the quantity of ledge structure on the key reduce, the gap between its each step is just bigger, and its mutual opening rate just can significantly reduce by this, thereby promotes the theftproof performance of product.

Simultaneously, because the gap of each step is strengthened on the key, its needed requirement on machining accuracy also decreases, can adopt this moment the manufacture craft of die casting to replace the manufacture craft of the Vehicle Processing of tradition fully, and the manufacture craft of die casting is by the die operation of standardization, automation, the speed of its processing and fabricating is fast, labour cost is few, cost is low, but also can adopt the materials such as kirsite that structural strength is better, price is more cheap, make key not easy fracture and wearing and tearing, finally with the market competitiveness of the tapered end that promotes the utility model greatly.

Come the utility model is elaborated below in conjunction with accompanying drawing and specific embodiment:

Description of drawings

Fig. 1 is the exploded view of the screening type tapered end of prior art;

Fig. 2 is the three-dimensional diagrammatic sketch of assembling of the embodiment of the utility model;

Fig. 3 is the phantom drawing of Fig. 2;

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

Fig. 5 is the sectional view of Fig. 2;

Fig. 6 is the sectional perspective exploded view of the embodiment of the utility model.

The accompanying drawing identifier declaration:

1, outer sleeve 1a, short slot

2, inner sleeve 3, locking plate

3a, stop part 4, flexible member

5, key 5a, ledge structure

100, tapered end 10, outer sleeve

11, ccontaining inlet 12, annular short slot

13, stopper slot 14, first containing hole

20, inner sleeve 21, matrix

211, key port 211a, breach

212, containing cavity 213, second containing hole

22, bonnet 30, locking plate

31, first locking plate 32, second locking plate

33, the 3rd locking plate 301, stop part

302, spacing hole 40, spring

41, big spring 42, little spring

43, little spring 50, limit assembly

51, first active fastening block 52, second active fastening block

53, reposition element 60, key

61, ledge structure 611, first step

612, second step 613, the 3rd step

62, block 63, recess

The specific embodiment:

Please refer to Fig. 2 to shown in Figure 6, it has demonstrated the concrete structure of the preferred embodiment of the utility model, and this tapered end 100 includes outer sleeve 10, inner sleeve 20, three locking plates 30, five compression springs 40 and two groups can limit the limit assemblies 50 that inner sleeve rotates.

Wherein, the open rearward end of this outer sleeve 10, the front end of outer sleeve 10 has ccontaining inlet 11, and inner sleeve 20 is inserted by its rear end opening during assembling.Outer sleeve 10 internal faces are provided with three places annular short slot 12, and this three places annular short slot 12 distributes along outer sleeve 10 axial spacings, and the interval that provides aforementioned three locking plates 30 to rotate in outer sleeve 10 is provided; And the upper-lower position place of outer sleeve 10 internal faces also respectively is provided with a stopper slot 13, and this stopper slot 13 is extended axially to the front end of outer sleeve 10 by outer sleeve 10 tail ends, is used to provide aforementioned three locking plates 30 slideway in axial sliding in outer sleeve 10.And, being provided with two first containing holes 14 that radially extend in outer sleeve 10, this first containing hole 14 runs through the inner chamber of outer sleeve 10 with extraneous, and the entrance of first containing hole 14 is by the rigid shutoff of a steel ball.

This inner sleeve 20 is installed in the aforementioned outer sleeve 10, inner sleeve 20 is formed by matrix 21 and bonnet 22 assembly, the open rearward end of this matrix 21, and this bonnet 22 is encapsulated on the open rearward end of matrix 21, have key port 211 on the front end of matrix 21, be provided with breach 211a in this key port 211.And the matrix 21 of inner sleeve 20 is provided with two second containing holes 213 that radially extend, and this second containing hole 23 is communicated with the inner chamber of inner sleeve 20 and the internal face of aforementioned first containing hole, 14, the second containing holes 213 is provided with limited step.

These three locking plates 30 and five springs 40 all are arranged in the matrix 11 of inner sleeve 10, rotate synchronously with inner sleeve 10, corresponding to being provided with the axial containing cavity 212 that is used to hold and locate each spring 40 in the matrix 11.These three locking plates 30 are along axial stacked the arranging of matrix 21, and arranging successively from matrix 11 front ends to its tail end is first locking plate 31, second locking plate 32 and the 3rd locking plate 33, these three locking plates 30 separately up and down the extension stop part 301 at two ends extend radially out outside the matrix 21, and be embedded in the stopper slot 13 of aforementioned outer sleeve 10, in addition, by first locking plate, 31 to the 3rd locking plates 33, the internal diameter of the spacing hole 302 of the center reduces successively.The tail end of these five springs 40 is resisted against on the inner face of aforementioned bonnet 22 respectively, and the front end of a big spring 41 in five springs 40 relies on the 3rd locking plate 33, the front end of two little springs 42 relies on second locking plate 32, the front end of two little springs 43 relies on the 3rd locking plate 33 in addition, five springs 40 play the effect that each locking plate 30 pushing tow is stacked on the anterior position of tapered end respectively, so that insert under key 60 states, the stop part 301 and the annular short slot 12 of each locking plate 30 remain on staggered position.

This limit assembly 50 includes first active fastening block 51, second active fastening block 52 and reposition element 53, and the reposition element 53 in the present embodiment is a compression spring.The reposition element 53 and first active fastening block 51 are set in first containing hole 14 of aforementioned outer sleeve 10, and these reposition element 53 pushing tows are on first active fastening block 51, and the other end pushing tow of reposition element 53 is on steel ball.52 of this second active fastening blocks are set in second containing hole 213 of inner sleeve, aforementioned first active fastening block, 51 pushing tows are in the root end face of second active fastening block 52, the hemispherical nose of second active fastening block 52 protrudes in the inner chamber of inner sleeve 20, limited step in second containing hole 213 acts on the shoulder of second active fastening block 52, falls in the inner chamber of inner sleeve 20 to prevent second active fastening block 52.

The surface of this key 60 is provided with three ledge structures 61 that are used to promote each locking plate 30, and this step is respectively first step 611, second step 612 and the 3rd step 613 from high to low, this first step 611 is used for pushing tow first locking plate 31, second step 612 is used for pushing tow second locking plate 32, the three steps 613 and is used for pushing tow the 3rd locking plate 33.And the upper and lower side on key 60 surfaces respectively is provided with block 62, rotates to be used to driving inner sleeve 20; The surface of key 60 is provided with and is used for the hemispherical recess 63 that cooperates with aforementioned second active fastening block 52.

When not inserting key 60, five springs 40 in the tapered end 100 are stacked on these three locking plate 30 pushing tows the anterior position of tapered end 100 respectively, the stop part 301 and the annular short slot 12 of each locking plate 30 remain on staggered position, so that each locking plate 30 and inner sleeve 20 can not be rotated by 13 restrictions of the stopper slot in the outer sleeve 10, tapered end 100 is in locking condition.In addition, this first active fastening block 31 has the part slippage to go in second containing hole 213 under the thrust of reposition element 53, is playing the effect that inner sleeve 20 can not forward to that limits equally.

When inserting key 60, if what insert is the key that is complementary, each ledge structure 61 on this key 60 is respectively with annular short slot 12 positions of each locking plate 30 inside pushing tow to aforementioned correspondence, three locking plates 30 are respectively one by one corresponding to these three annular short slots 12, so that three locking plates 30 can freely rotate in these annular short slot 12 places, at this moment, inner sleeve 20 is removed by the restriction of each locking plate 30; And this second active fastening block 52 just in time is embedded in the recess 63 on the key 60, the degree of depth of recess 63 is also just in time enough lifted the certain distance of second active fastening block 52, this just in time makes second active fastening block 52 promote the 51 complete slippages of first active fastening block apart from needs and returns in first containing hole 14, second active fastening block 52 also is positioned at second containing hole 213 fully simultaneously, at this moment, inner sleeve 20 is also removed the restriction of limited assembly 50; When these two restrictions are all removed simultaneously, but tapered end 100 obtains unlocking condition, can drive inner sleeve 20 by key 60 and rotate and lock is opened.

Otherwise, if what insert is not the key that is complementary, then each ledge structure 61 on this key 60 can not be with the position of all locking plate 30 pushing tows to annular short slot 12, perhaps this first active fastening block 51 has part-structure to be positioned at second containing hole 213, perhaps second active fastening block 52 has part-structure to be positioned at first containing hole 14, and makes inner sleeve 20 not be disengaged restriction, and any limited case exists as long as aforementioned structure has wherein, tapered end 100 just still is in locking condition, can not be opened.

Of the present utility model focusing on, the limit assembly 50 that can limit inner sleeve 20 rotations equally is set by increase, make in the number of the joining process of actual key 60 and tapered end 100, can be simultaneously the position of step 61 and short slot 12 by difference is set, and limit assembly 50 sizes of difference and on the key recess 63 degree of depth realize the number of joining of key 60 and tapered end 100.For example, when 1000 numbers of joining of needs,, and then dispose limit assembly 50 sizes of 10 kinds of differences and the degree of depth of recess 63, just can reach the purpose of 1000 numbers of joining as long as on key 60, process the ledge structure 61 of 100 kinds of differences.Thereby make the quantity of the ledge structure 61 on the key 60 reduce, the gap between its each step 61 is just bigger, and its mutual opening rate just can significantly reduce by this, thereby promotes the theftproof performance of product.

Simultaneously, because the gap of each step 61 is strengthened on the key 60, its needed requirement on machining accuracy also decreases, can adopt this moment the manufacture craft of die casting to replace the manufacture craft of the Vehicle Processing of tradition fully, and the manufacture craft of die casting is by the die operation of standardization, automation, the speed of its processing and fabricating is fast, labour cost is few, cost is low, but also can adopt the materials such as kirsite that structural strength is better, price is more cheap, make key not easy fracture and wearing and tearing, finally with the market competitiveness of the tapered end that promotes the utility model greatly.

The above, it only is preferred embodiment of the present utility model, be not that technical scope of the present utility model is imposed any restrictions, so every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of novel screening type tapered end, include outer sleeve, inner sleeve, a plurality of locking plate and a plurality of flexible member, inner sleeve is installed in the inner chamber of outer sleeve, axially be provided with a plurality of on this outer sleeve internal face and the short slot locking plate equal number, a plurality of locking plates and a plurality of flexible member are arranged in the inner sleeve, rotate synchronously with inner sleeve, wherein, the tail end of these a plurality of flexible members is resisted against on the inner sleeve, and the front end of a plurality of flexible members pushing tow respectively is characterized in that on each locking plate:

2, novel screening type tapered end according to claim 1 is characterized in that: described first containing hole runs through the inner chamber of outer sleeve with extraneous, the rigid inlet that is plugged in first containing hole of a steel ball.

3, novel screening type tapered end according to claim 1, it is characterized in that: described inner sleeve is formed by matrix and bonnet assembly, the open rearward end of this matrix, this bonnet is encapsulated on the open rearward end of matrix.

4, novel screening type tapered end according to claim 3 is characterized in that: be provided with the axial containing cavity that is used to hold and locate each flexible member in the described matrix.

5, novel screening type tapered end according to claim 1, it is characterized in that: described flexible member and reposition element are compression spring.

6, novel screening type tapered end according to claim 1, it is characterized in that: described inner sleeve is packed into from the rear end of outer sleeve, has key port on the front end of inner sleeve, and this key port is provided with the breach that cooperates for the key block.

7, novel screening type tapered end according to claim 1, it is characterized in that: the head of described second active fastening block is hemispherical.

8, the key that the tapered end of any one is complementary in a kind of and aforementioned claim 1 to 7, this surfaces of keys is provided with the ledge structure that is used for each locking plate of pushing tow, it is characterized in that: the surface of key is provided with and is used for the recess that cooperates with the head of second active fastening block.

9, key according to claim 8 is characterized in that: described recess is a hemispherical.

10, key according to claim 8 is characterized in that: described surfaces of keys is provided with and is used for the block that cooperates with breach on the tapered end key port.