Improved row sheet type lock cylinder structure
By setting a spacing support block on the locking piece, the problem of movable parts causing unilateral tilt and sagging in the locking state is solved, and stable support for the movable parts and compactness of the lock structure is achieved.
Patent Information
- Application Number
- CN202422255053.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-13
AI Technical Summary
In the locked state, the movable member has a problem of unilateral radial inward sagging due to the push of the elastic member.
A first support block and a second support block arranged at a distance are provided on the multiple locking sheets. In the locked state, the first support block and the second support block can both abut the movable member to ensure that the center of gravity of the movable member is located or directly opposite the support blocks to form a structure similar to a simple support beam or cantilever beam.
By supporting the center of gravity of the movable member, it prevents the problem of unilateral inclination and sagging, and improves the stability and structural compactness of the lock in the locked state.
Smart Images
Figure CN223034705U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, in particular to an improved row of piece type lock core structure. Background Art
[0002] The row of piece type lock head is a kind of lock, which mainly includes an outer sleeve and an inner sleeve rotatably arranged in the outer sleeve. One end of the inner sleeve is provided with a key hole for inserting a key. A plurality of lock pieces and a plurality of elastic pieces are arranged in the inner sleeve. The plurality of lock pieces and the plurality of elastic pieces can rotate along with the inner sleeve. The elastic pieces make the lock pieces always have a tendency to move towards the direction close to the key hole. An movable piece capable of radial movement is arranged between the outer sleeve and the inner sleeve. When in use, the key is inserted into the inner sleeve to push the lock pieces to the corresponding grooves on the movable piece, so that the movable piece radially extends into the long groove of the inner sleeve and cooperates with the lock pieces. Rotating the key makes the lock pieces drive the inner sleeve and the movable piece to rotate synchronously to achieve the unlocking function.
[0003] However, in the locked state, since the elastic pieces will push all the lock pieces to gather towards the key hole, one end of the movable piece is supported on the lock pieces and the other end is in a suspended state, resulting in the problem that the movable piece generates unilateral radial inward inclination and sag. Summary of the Utility Model
[0004] Aiming at the deficiencies existing in the prior art, the utility model provides an improved row of piece type lock core structure, which can use two support blocks arranged at intervals on the lock pieces to support the movable piece in the locked state, preventing the problem that the movable piece generates unilateral inward inclination and sag.
[0005] To achieve the above object, the utility model adopts the following technical scheme:
[0006] An improved row of piece type lock core structure, including an outer sleeve and an inner sleeve rotatably arranged in the outer sleeve. One end of the inner sleeve is provided with a key hole for inserting a key. A plurality of lock pieces and a plurality of elastic pieces are arranged in the inner sleeve. The plurality of lock pieces are arranged along the axis direction of the inner sleeve. The elastic pieces make the lock pieces always have a tendency to move towards the direction close to the key hole. An movable piece cooperating with the lock pieces is arranged between the outer sleeve and the inner sleeve. The movable piece can move radially. The plurality of lock pieces have a first support block and a second support block arranged at intervals. In the locked state, both the first support block and the second support block can abut against the movable piece. The center of gravity of the movable piece is located between the first support block and the second support block, or the center of gravity of the movable piece is directly opposite to one of the first support block and the second support block.
[0007] By providing first support blocks and second support blocks with a set spacing on multiple locking pieces, in the locked state, both the first support blocks and the second support blocks can abut against the movable part. When the center of gravity of the movable part is between the first support block and the second support block, the movable part, the first support block and the second support block form a structure similar to a simply supported beam, which can prevent the problem of unilateral inward tilting and sagging of the movable part; in addition, when the center of gravity of the movable part is directly opposite to one of the first support block and the second support block, the movable part, the first support block and the second support block form a structure similar to a cantilever beam, which can also prevent the problem of unilateral inward tilting and sagging of the movable part.
[0008] As a preferred solution, the multiple locking pieces include a first locking piece and a second locking piece. The first support block is arranged on the first locking piece, and the second support block is arranged on the second locking piece.
[0009] As a preferred solution, the first locking piece is located on the side of the second locking piece away from the keyhole. A step is provided on the inner side wall of the inner sleeve, and a convex block corresponding to the step is provided on the first locking piece. In the locked state, the convex block abuts against the step to keep a spacing between the first locking piece and the second locking piece, and to keep a spacing between the first support block and the second support block.
[0010] As a preferred solution, an axially extending chute is provided on the inner side wall of the inner sleeve. One end of the chute away from the keyhole penetrates the end face of the inner sleeve, and the inner wall of one end of the chute close to the keyhole forms the step. The distance between the step and the end face of the movable part away from the keyhole is ≤ 2 / 3 of the length of the movable part along the axis direction of the inner sleeve.
[0011] As a preferred solution, a limiting member is provided on the first locking piece or the second locking piece. The limiting member keeps a spacing between the first locking piece and the second locking piece, and keeps a spacing between the first support block and the second support block. In the locked state, the spacing L1 between the first support block and the second support block is 5 mm - 10 mm.
[0012] As a preferred solution, the multiple locking pieces include a first locking piece and a second locking piece. Both the first support block and the second support block are arranged on the first locking piece.
[0013] As a preferred solution, it further includes an intermediate sleeve. The intermediate sleeve is rotatably arranged in the outer sleeve, the inner sleeve is rotatably arranged in the intermediate sleeve. A positioning groove for the radial movement of the movable part is provided on the intermediate sleeve, and a limiting structure for reducing the swing amplitude of the movable part is provided between the inner wall of the positioning groove and the movable part.
[0014] As a preferred solution, the limiting structure includes a limiting block and a limiting groove. The limiting block is embedded in the limiting groove to reduce the swing amplitude of the movable part.
[0015] As a preferred solution, the gap between the limiting block and the limiting groove is smaller than the gap between the movable part and the positioning groove.
[0016] As a preferred solution, the gap L2 between the outer walls of the limiting block on both sides along the circumferential direction of the outer sleeve and the inner wall of the limiting groove is 0mm-0.07mm.
[0017] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, by arranging the first support block and the second support block at intervals on the plurality of locking plates, in the locked state, the first support block and the second support block can both abut against the movable part. When the center of gravity of the movable part is located between the first support block and the second support block, the movable part, the first support block and the second support block form a structure similar to a simply supported beam, which can prevent the movable part from tilting inward on one side and sagging on the other side. In addition, when the center of gravity of the movable part is opposite to one of the first support block and the second support block, the movable part, the first support block and the second support block form a structure similar to a cantilever beam, which can also prevent the movable part from tilting inward on one side and sagging on the other side.
[0018] In order to more clearly illustrate the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the assembly structure of the first embodiment of the utility model;
[0020] Figure 2 It is an exploded schematic diagram of the first embodiment of the utility model;
[0021] Figure 3 It is an exploded schematic diagram of the first locking plate and the inner sleeve of the first embodiment of the utility model;
[0022] Figure 4 This is a front view schematic diagram of the assembly of the outer sleeve and the movable part of the first embodiment of the utility model;
[0023] Figure 5 yes Figure 4 A partial enlarged schematic diagram of part A;
[0024] Figure 6 This is a schematic diagram of the locked state of the first embodiment of the utility model;
[0025] Figure 7 It is a schematic diagram of the unlocking state of the first embodiment of the utility model.
[0026] Description of the accompanying drawings:
[0027] 10 - Outer sleeve; 11 - Movable part; 12 - Receiving groove; 13 - Spring piece; 20 - Inner sleeve; 201 - Keyhole; 202 - Long groove; 203 - Step; 204 - Slide groove; 21 - Lock piece; 22 - First lock piece; 221 - First support block; 222 - Protrusion; 23 - Second lock piece; 231 - Second support block; 24 - Third lock piece 21; 241 - Third support block; 30 - Intermediate sleeve; 31 - Positioning groove; 32 - Unlocking block; 33 - Limiting structure; 331 - Limiting block; 332 - Limiting groove; 40 - Key; G - Center of gravity. Detailed implementation mode
[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the position or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model.
[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0030] Such as Figure 1-7As shown in the figure, the utility model discloses an improved row of chip lock core structure, which includes an outer sleeve 10 and an inner sleeve 20 rotatably arranged in the outer sleeve 10. One end of the inner sleeve 20 is provided with a key hole 201 for inserting a key 40. A plurality of lock chips 21 and a plurality of elastic members are arranged in the inner sleeve 20. The plurality of lock chips 21 are arranged along the axial direction of the inner sleeve 20. The elastic members make the lock chips 21 always tend to move towards the key hole 201. The plurality of lock chips 21 and elastic members can rotate with the inner sleeve 20. An active member 11 cooperating with the lock chips 21 is arranged between the outer sleeve 10 and the inner sleeve 20. The active member 11 can move radially. The active member 11 extends along the axial direction of the inner sleeve 20. A receiving groove 12 is arranged in the outer sleeve 10. A spring piece 13 is arranged in the receiving groove 12. The spring piece 13 makes the active member 11 always tend to move radially inwards. An axially extending long groove 202 is arranged on the circumferential surface of the inner sleeve 20. The active member 11 can radially extend into the long groove 202 to cooperate with the lock chips 21. The lock chips 21 can push the active member 11 to radially withdraw from the long groove 202. Among them, the lock chips 21, elastic members, active member 11 and spring piece 13 are all existing mature technologies.
[0031] The plurality of lock chips 21 have a first support block 221 and a second support block 231 arranged at intervals. In the locked state, both the first support block 221 and the second support block 231 can abut against the active member 11. The center of gravity G of the active member 11 is located between the first support block 221 and the second support block 231, or the center of gravity G of the active member 11 is directly opposite to one of the first support block 221 and the second support block 231.
[0032] In the first embodiment, the plurality of lock chips 21 include a first lock chip 22 and a second lock chip 23. The first support block 221 is arranged on the first lock chip 22, and the second support block 231 is arranged on the second lock chip 23.
[0033] The first locking piece 22 is located on the side of the second locking piece 23 away from the keyhole 201. A step 203 is provided on the inner side wall of the inner sleeve 20. A convex block 222 corresponding to the step 203 is provided on the first locking piece 22. In the locked state, the convex block 222 abuts against the step 203, so that a distance is maintained between the first locking piece 22 and the second locking piece 23, and a distance is maintained between the first support block 221 and the second support block 231. Specifically, an axially extending chute 204 is provided on the inner side wall of the inner sleeve 20. One end of the chute 204 away from the keyhole 201 penetrates the end face of the inner sleeve 20. The inner wall of one end of the chute 204 close to the keyhole 201 forms the step 203. The distance between the step 203 and the end face of the movable member 11 away from the keyhole 201 is ≤ 2 / 3 of the length of the movable member 11 along the axis direction of the inner sleeve 20; by providing the step 203 on the inner sleeve 20 and the convex block 222 on the first locking piece 22, in the locked state, the elastic member pushes the first locking piece 22 so that the convex block 222 abuts against the step 203, thereby restricting the first locking piece 22 from moving closer to the second locking piece 23, keeping a distance between the second locking pieces 23, and further keeping a distance between the first support block 221 and the second support block 231 to support the movable member 11.
[0034] In the locked state, the distance L1 between the first support block 221 and the second support block 231 is 5 mm - 10 mm. Preferably, the distance L1 is 6.4 mm; by setting the distance L1 between the first support block 221 and the second support block 231 to be 5 mm - 10 mm, stable support for the movable member 11 can be satisfied, and at the same time, the internal structure of the lock core is compact and occupies a small space.
[0035] The plurality of locking pieces 21 further includes a third locking piece 2124. The third locking piece 2124 is provided on the side of the second locking piece 23 close to the keyhole 201. A third support block 241 is provided on the third locking piece 2124. The function of the third support block 241 is similar to that of the second support block 231.
[0036] The utility model further includes an intermediate sleeve 30, the intermediate sleeve 30 is rotatably arranged in the outer sleeve 10, the inner sleeve 20 is rotatably arranged in the intermediate sleeve 30, an unlocking block 32 is arranged at one end of the intermediate sleeve 30 away from the through hole of the key 40, a positioning groove 31 for the radial movement of the movable member 11 is arranged on the intermediate sleeve 30, and a limiting structure 33 for reducing the swinging amplitude of the movable member 11 is arranged between the inner wall of the positioning groove 31 and the movable member 11; by arranging the intermediate sleeve 30, the positioning groove 31 is arranged on the intermediate sleeve 30, the movable member 11 is radially arranged in the positioning groove 31, and the limiting structure 33 is arranged between the inner wall of the positioning groove 31 and the movable member 11, and the limiting effect of the limiting structure 33 is used to reduce the swinging amplitude of the movable member 11 in the circumferential direction of the outer sleeve 10, so that the stability of the movable member 11 is better.
[0037] The limiting structure 33 includes a limiting block 331 and a limiting groove 332, and the limiting block 331 is embedded in the limiting groove 332 to reduce the swinging amplitude of the movable member 11.
[0038] The gap between the limiting block 331 and the limiting groove 332 is smaller than the gap between the movable member 11 and the positioning groove 31. Specifically, the gap L2 between the outer walls on both sides of the limiting block 331 in the circumferential direction of the outer sleeve 10 and the inner wall of the limiting groove 332 is 0 mm - 0.07 mm, and preferably the gap L2 is 0.05 mm; by setting the gap L2 to be 0 mm - 0.07 mm, the effect of reducing the swinging amplitude of the movable member 11 in the circumferential direction of the outer sleeve 10 is better.
[0039] Specifically, an opening is formed at one end of the limiting groove 332 away from the outer sleeve 10 and is open. When the movable member 11 extends into the long groove 202 on the inner sleeve 20, the opening allows the limiting block 331 to extend out to play a role of avoidance. The limiting block 331 is arranged at one end of the positioning groove 31 away from the keyhole 201, and the limiting groove 332 is arranged on the movable member 11. It can be understood that the limiting block 331 can also be arranged on the side walls on both sides of the positioning groove 31 in the circumferential direction of the outer sleeve 10.
[0040] It should be noted that the limiting block 331 can also be replaced by a guide rod, and the limiting groove 332 is correspondingly provided with a guide hole. The guide rod extends in the radial direction of the outer sleeve 10, and the guide rod is movably arranged in the guide hole.
[0041] In the second embodiment, the difference from the first embodiment is that a limiting member is provided on the first locking piece 22 or the second locking piece 23. The limiting member keeps a distance between the first locking piece 22 and the second locking piece 23, and also keeps a distance between the first supporting block 221 and the second supporting block 231. By providing the limiting member and using it to separate the first locking piece 22 and the second locking piece 23, a distance can also be kept between the first supporting block 221 and the second supporting block 231.
[0042] Specifically, the limiting member is provided on the first locking piece 22. In the locked state, the end of the limiting member away from the first locking piece 22 abuts against the second locking piece 23 to keep a distance between the first locking piece 22 and the second locking piece 23. The limiting member can be a limiting rod. It can be understood that setting the limiting member on the second locking piece 23 can also achieve the same effect.
[0043] In the third embodiment, the difference from the first and second embodiments is that both the first supporting block 221 and the second supporting block 231 are provided on the first locking piece 22.
[0044] The working principle of the present utility model:
[0045] Insert the key 40 into the keyhole 201. The three push blocks on the key 40 respectively push the first locking piece 22, the second locking piece 23 and the third locking piece 2124 forward, so that the first locking piece 22, the second locking piece 23 and the third locking piece 2124 reach the corresponding grooves on the movable member 11, releasing the restriction on the radial inward movement of the movable member 11. Under the action of the spring piece 13, the movable member 11 radially inwardly extends into the long groove 202 to cooperate with the corresponding locking piece 21. Rotate the key 40 to make the locking piece 21 drive the inner sleeve 20, the movable member 11, the middle sleeve 30 and the unlocking block 32 to rotate synchronously, and the lock is unlocked.
[0046] After the lock is locked, pull out the key 40. Multiple elastic members push the corresponding first locking piece 22, second locking piece 23 and third locking piece 2124 in the direction close to the keyhole 201. When the convex block 222 abuts against the step 203, the first locking piece 22 stops moving. When the third locking piece 2124 abuts against the inner sleeve 20, it stops moving. When the second locking piece 23 abuts against the third locking piece 2124, it stops moving. If the first locking piece 22, the second locking piece 23 and the third locking piece 2124 are better aligned with the movable member 11, then the first supporting block 221, the second supporting block 231 and the third supporting block 241 all abut against the movable member 11.
[0047] In summary, in the present utility model, the first support block 221 and the second support block 231 are arranged at intervals on a plurality of locking pieces 21. In the locked state, both the first support block 221 and the second support block 231 can be in contact with the movable member 11. When the center of gravity G of the movable member 11 is located between the first support block 221 and the second support block 231, the movable member 11, the first support block 221, and the second support block 231 form a structure similar to a simply supported beam, which can prevent the problem that the movable member 11 inclines and sags inward unilaterally; in addition, when the center of gravity G of the movable member 11 is directly opposite to one of the first support block 221 and the second support block 231, the movable member 11, the first support block 221, and the second support block 231 form a structure similar to a cantilever beam, which can also prevent the problem that the movable member 11 inclines and sags inward unilaterally.
[0048] The above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the actual technology of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims
1. An improved plate-type lock core structure, comprising an outer sleeve and an inner sleeve rotatably disposed in the outer sleeve, one end of the inner sleeve being provided with a keyhole for inserting a key, a plurality of locking plates and a plurality of elastic members being provided in the inner sleeve, the plurality of locking plates being arranged along the axis direction of the inner sleeve, the elastic members making the locking plates always have a tendency to move in a direction close to the keyhole, a movable member cooperating with the locking plates being provided between the outer sleeve and the inner sleeve, the movable member being capable of radial movement, characterized in that: The plurality of locking plates have a first support block and a second support block that are spaced apart from each other. In a locked state, the first support block and the second support block can both abut against a movable part, and the center of gravity of the movable part is located between the first support block and the second support block, or the center of gravity of the movable part is directly opposite to one of the first support block and the second support block.
2. The improved sheet-type lock core structure according to claim 1, characterized in that: The plurality of locking plates include a first locking plate and a second locking plate. The first supporting block is disposed on the first locking plate, and the second supporting block is disposed on the second locking plate.
3. The improved sheet-type lock core structure according to claim 2, characterized in that: The first locking plate is located on a side of the second locking plate away from the keyhole, the inner side wall of the inner sleeve is provided with a step, and the first locking plate is provided with a protrusion corresponding to the step. In a locked state, the protrusion abuts against the step to maintain a distance between the first locking plate and the second locking plate, and to maintain a distance between the first supporting block and the second supporting block.
4. The improved sheet-type lock core structure according to claim 3, characterized in that: The inner side wall of the inner sleeve is provided with an axially extending slide groove, the end of the slide groove away from the keyhole passes through the end surface of the inner sleeve, the inner wall of the slide groove close to the keyhole forms the step, and the distance between the step and the end surface of the movable part away from the keyhole is ≤ 2 / 3 of the length of the movable part along the axial direction of the inner sleeve.
5. The improved sheet-type lock core structure according to claim 2, characterized in that: A limiting member is provided on the first locking plate or the second locking plate, and the limiting member maintains a distance between the first locking plate and the second locking plate, and maintains a distance between the first support block and the second support block. In the locked state, the distance L1 between the first support block and the second support block is 5mm-10mm.
6. The improved sheet-type lock core structure according to claim 1, characterized in that: The plurality of locking plates include a first locking plate and a second locking plate, and the first supporting block and the second supporting block are both arranged on the first locking plate.
7. The improved sheet-type lock core structure according to any one of claims 1 to 6, characterized in that: It also includes an intermediate sleeve, which is rotatably arranged in the outer sleeve, and the inner sleeve is rotatably arranged in the intermediate sleeve. The intermediate sleeve is provided with a positioning groove for radial movement of the movable part, and a limiting structure is provided between the inner wall of the positioning groove and the movable part to reduce the swing amplitude of the movable part.
8. The improved sheet-type lock core structure according to claim 7, characterized in that: The limiting structure comprises a limiting block and a limiting groove, wherein the limiting block is embedded in the limiting groove to reduce the swing amplitude of the movable part.
9. The improved sheet-type lock core structure according to claim 8, characterized in that: The gap between the limiting block and the limiting groove is smaller than the gap between the movable part and the positioning groove.
10. The improved sheet-type lock core structure according to claim 9, characterized in that: The gaps L2 between the outer walls of the limiting block on both sides along the circumferential direction of the outer sleeve and the inner wall of the limiting groove are both 0mm-0.07mm.