CN201401055Y - Lock core with replaceable key - Google Patents

Abstract

A lock core with replaceable lock keys comprises a lock shell, a lock core group and a plurality of lock bead groups, wherein the lock shell comprises a hollow cylindrical part and a swinging part, the hollow cylindrical part is provided with an inner side wall, an outer side wall and a groove hole concavely arranged on the outer side wall, the swinging part is arranged in the groove hole in a swinging manner, the lock core group is arranged in the hollow cylindrical part of the lock shell and comprises a lock core body and a positioning block, the lock core body is provided with a front end part, a middle part, a driving part, a containing groove formed in the middle part, a lock key hole and a plurality of lower lock bead holes communicated with the lock key hole and the containing groove, the positioning block is arranged in the containing groove of the lock core body and is provided with a clamping groove for clamping the swinging part and a plurality of lock bead clamping grooves corresponding to the lower lock bead holes, the lock bead groups comprise combined lower lock beads, the combined lower lock beads are movably arranged in the lower lock bead holes of the lock core body and the lock bead clamping grooves of the, A lower lock plate which can be engaged with the upper lock plate and an elastic piece which is arranged between the upper lock plate and the lower lock plate.

Description

Cylinder with replaceable key

technical field

The utility model relates to a lock core structure, in particular to a lock core with a replaceable key.

Background technique

The lock cores of the existing known locks are all matched with a corresponding correct key. If you want to change the lock, you must replace the lock core and the key together to complete the lock change. It is impossible to just replace the key without changing the lock core , thus resulting in an increase in the cost of changing the lock and causing inconvenience in use.

This shows that the lock core of the above-mentioned existing lockset obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently. In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and there is no suitable structure and method for general products and methods to solve the above-mentioned problems. This is obviously a problem that relevant industry players are eager to solve. Therefore, how to create a new lock core that can be small in size, low in cost and can be adjusted in all directions during use is one of the current important research and development issues, and has also become a goal that the industry needs to improve.

In view of the defects in the cores of the existing locks mentioned above, the designer, based on his rich practical experience and professional knowledge in the design and manufacture of such products for many years, and with the application of academic theories, actively researches and innovates, in order to create a new kind of lock. , can improve the lock core of general existing lockset, make it more practical. Through continuous research, design, and after repeated trial samples and improvements, the utility model with practical value is finally created.

Contents of the invention

The purpose of this utility model is to overcome the defects existing in the lock core of the existing lockset, and provide a lock core with a new structure of replaceable key. The technical problem to be solved is to make it insert a first matching key into a lock A lock core body of the core group, then, rotate the first matching key to drive the lock core body and a positioning block of the lock core group to rotate, and then apply a pulling force to the first matching key to make multiple combinations The lower lock bead is displaced to push a swing member of a lock housing, and then, the first mating key is rotated to drive the positioning block, so that the positioning block engages with the swing member, and the combined lower lock A plurality of upper locking pieces and a plurality of lower locking pieces of the bead are disengaged, after which, the first matching key is drawn out, and a second matching key is inserted into the lock body, and then, the second matching key is rotated to release the positioning block and the swinging member, and make the upper locking piece and the lower locking piece re-engage, and finally pull out the second matching key to complete the key replacement. The utility model only needs to replace the matching key to complete the replacement. Lock action, because there is no need to replace the lock core, it can greatly reduce the cost of lock replacement and improve the convenience of use.

The purpose of this utility model and its technical solution are to adopt the following technical solutions to achieve. According to the utility model, a lock cylinder with a replaceable key is provided, which includes a lock case, which includes a hollow cylindrical part and a swinging member pivotally mounted on the hollow cylindrical part; The hollow cylindrical portion of the lock housing includes: a lock core body having a housing slot, a keyhole, and a plurality of lower lock bead holes connecting the keyhole and the housing slot; and a positioning block, which is arranged in the accommodating groove of the lock core body, the positioning block has a card slot for the swinging member to engage and a plurality of lock bead clip slots corresponding to the lower lock bead hole; and a plurality of combinations The lower lock beads of the combined type are movably arranged on the lock core body, and each combined lower lock bead includes a pair of upper lock pieces corresponding to the lock bead clamping groove and an upper lock piece that can be connected with the upper lock piece. Engaged lower cleats.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

In the aforementioned lock core with replaceable key, the lock shell includes an extended protrusion formed on one side of the hollow cylindrical part, and the extended protrusion has a plurality of locking bead holes and a parallel locking bead The straight groove of the hole, and the locking bead hole and the straight groove communicate with the hollow cylindrical part.

In the aforementioned lock core with a replaceable key, the lock case further includes a locating piece and a first spring capable of pushing the locating piece, the locating piece and the first spring are arranged on the straight side of the extending protrusion. groove.

In the aforementioned lock core with a replaceable key, the lock core body has a positioning groove, and the positioning member of the lock housing can be engaged with the positioning groove of the lock core body.

In the aforementioned lock cylinder with replaceable key, the hollow cylindrical portion has an inner side wall, an outer side wall and a slot recessed in the outer side wall, and the swinging member is pivotably mounted on the slot hole.

In the aforementioned lock core with a replaceable key, the slot hole of the lock case has a first slot portion communicating with the outer wall and the inner wall and a slot portion communicating with the first slot portion, and The oscillating member has a clamping portion located at the first slot portion and a rotating shaft disposed at the slot portion.

In the aforementioned lock core with a replaceable key, the lock case further includes a fixing part, and the lock case has a groove recessed on the outer side wall and adjacent to the first slot part, and the fixing part is arranged on the groove.

In the aforementioned lock core with replaceable key, the fixing part has at least one elastic limiting part, and the locking part of the swinging part can be fastened to the elastic limiting part.

In the aforementioned lock core with replaceable key, the slot hole of the lock case has a second slot portion communicating with the outer wall and the inner wall and a slot portion communicating with the second slot portion, and The oscillating member has a hook portion located at the second slot portion and a rotating shaft disposed at the slot portion.

In the lock core of the aforementioned replaceable key, the positioning block has a surface facing the slot hole, a first protrusion protruding from the surface, a second protrusion, and a position between the first protrusion and the In the middle convex part between the second convex parts, the locking groove is recessed in the middle convex part.

In the aforementioned lock cylinder with replaceable key, the middle protrusion of the positioning block can be displaced in the second slot portion, and the locking slot can be engaged with the clasp portion of the oscillating member.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. By virtue of the above-mentioned technical solution, a lock core with a replaceable key of the present invention can achieve considerable technical progress and practicality, and has wide industrial application value. It has at least the following advantages:

If the lock core of the existing known lockset needs to be changed, it must be replaced together with the lock core and the key to complete the lock change. The utility model only needs to replace the matching key to complete the lock change action, because there is no need to replace the lock core , so it can greatly reduce the cost of changing locks and improve the convenience of use.

To sum up, the utility model is a novel lock core with replaceable key, which includes a lock case, a lock nut group and a plurality of lock bead groups, the lock case includes a hollow cylindrical part and a swinging piece, The hollow cylindrical part has an inner side wall, an outer side wall and a slot hole recessed on the outer side wall, the swinging member is pivotably arranged in the slot hole, and the lock core group is arranged in the hollow of the lock case. The cylindrical part, the lock core group includes a lock core body and a positioning block, the lock core body has a front end, a middle part, a driving part, an accommodation groove formed in the middle part, a key hole and A plurality of lower lock bead holes communicating with the key hole and the accommodation groove, the positioning block is arranged in the accommodation groove of the lock core body, and the positioning block has a card slot for the swinging member to engage and multiple A lock bead clamping groove corresponding to the lower lock bead hole, each lock bead group includes at least one combined lower lock bead, the combined lower lock bead is movably arranged in at least the lower lock bead hole and the lock bead hole of the lock core body There is at least one locking bead clamping groove of the positioning block, and the combined lower locking bead includes an upper locking piece, a lower locking piece that can be engaged with the upper locking piece, and a locking piece arranged on the upper locking piece and the lower locking piece. Elastic parts between.

The utility model has the above-mentioned many advantages and practical value, and it has great improvement no matter in product structure, method or function, has significant progress in technology, and has produced easy-to-use and practical effects, and is better than the existing ones. The lock core of the lockset of the present invention has enhanced and prominent multiple functions, thereby being more suitable for practical use, and has extensive application value in the industry. It is a novel, progressive and practical new design.

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings, and detailed descriptions are as follows.

Description of drawings

Fig. 1 is a preferred embodiment of the present invention, an exploded perspective view of a lock core with a replaceable key.

Fig. 2 is an assembled perspective view of the lock core of the replaceable key.

Fig. 3 is a preferred embodiment of the present utility model, a combined schematic diagram of a lock nut group.

Fig. 4 is an assembled longitudinal sectional view of the lock core of the replaceable key.

Fig. 5 is a cross-sectional view of the lock core of the replaceable key along the line A-A of Fig. 4 .

Fig. 6 is a flow chart of the operation method of the lock core with replaceable key.

Fig. 7 is a longitudinal sectional view of a preferred embodiment of the present invention, a state in which the first matching key is inserted into the lock core of the replaceable key.

Fig. 8 is a cross-sectional view of the first mating key inserted into the lock core of the replaceable key along line B-B of Fig. 7 .

Fig. 9 is a longitudinal sectional view of a preferred embodiment of the present invention, after the first mating key is rotated clockwise by 45 degrees.

Fig. 10 is a cross-sectional view of the first mating key rotated 45 degrees clockwise along line C-C in Fig. 9 .

Fig. 11 is a longitudinal sectional view of a preferred embodiment of the present invention, when a pulling force is applied to the first mating key.

Fig. 12 is a cross-sectional view of the state of applying a pulling force to the first mating key along the line D-D in Fig. 11

Fig. 13 is a longitudinal sectional view of a preferred embodiment of the present invention, when a thrust is applied to the first mating key.

Fig. 14 is a cross-sectional view of a state in which a thrust is applied to the first mating key along the line E-E of Fig. 13

Fig. 15 is a longitudinal sectional view of a preferred embodiment of the present invention, after the first mating key is rotated counterclockwise by 10 degrees.

Fig. 16 is a cross-sectional view of the state after the first mating key is rotated 10 degrees counterclockwise along the line F-F of Fig. 15 .

Fig. 17 is a preferred embodiment of the present utility model, a longitudinal sectional view of the state where the first matching key is drawn out.

Fig. 18 is a cross-sectional view of the state of pulling out the first mating key along the line G-G of Fig. 17 .

Fig. 19 is a preferred embodiment of the present utility model, a longitudinal sectional view of the state where the second matching key is inserted into the lock core of the replaceable key.

Fig. 20 is a cross-sectional view of the second mating key inserted into the lock cylinder of the replaceable key along line H-H in Fig. 19 .

Fig. 21 is a longitudinal sectional view of a preferred embodiment of the present utility model, in which the second mating key is rotated clockwise.

Fig. 22 is a cross-sectional view of the second mating key rotated clockwise along line I-I in Fig. 21 .

Fig. 23 is a preferred embodiment of the present utility model, a longitudinal sectional view of the lock core of the replaceable key in normal operation state.

Fig. 24 is a cross-sectional view of the lock core of the replaceable key in a normal operating state along line J-J of Fig. 23 .

10: lock case

11: Hollow cylindrical part 11a: Inner wall 11b: Outer wall

111: Slot 111a: First slot part 111b: Second slot part

111c: Groove part 112: Groove 113: Relief groove

12: Extended convex part 12a: Locking bead hole 12b: Straight groove

13: Fixed piece 13a: Elastic limit part 14: Swing piece

141: Clamping part 141a: Sawtooth structure 142: Rotating shaft

143: Hook part 15: Positioning piece 16: First spring

20: Lock Ren Group

21: Lock kernel body 21a: Front end 21b: Middle part

21c: Drive unit 211:: Accommodating slot 212: Key hole

213: Lower lock bead hole 213a: Extended chute 214: Positioning slot

215: Perforation 22: Positioning block 22a: Surface

22b: End face 221: Card slot 222: Lock bead clip slot

223: First convex part 224: Second convex part 225: Middle convex part

226a: First pocket 226b: Second pocket 23: Elastic fastener

24: Block block 25: Second spring

30: Lock bead set

31: Locking bead 32: Combined locking bead 321: Locking piece

3211: Rib 3211a: Locking bump 3212: Upper teeth

3213: Top 3213a: Upper fixing slot 322: Lower locking piece

3221: Lower tooth part 3222: Fixed part 3222a: Lower fixing groove

323: Elastic parts

400: provide a lock cylinder with replaceable key

410: Insert the first matching key into the lock core body

420: Rotate the first matching key to drive the lock core body and positioning block to rotate

430: Apply a pull to the first mating key to displace the combined lower bead to push the swing member

440: Rotate the first matching key to drive the positioning block to engage with the swinging member, and disengage the upper lock piece from the lower lock piece

450: Pull out the first matching key

460: Insert the second matching key into the lock core body

470: Rotate the second mating key to release the locking state between the positioning block and the swinging member, and re-engage the upper locking plate with the lower locking plate

480: Pull out the second mating key to complete the key change

50: First matching key

60: Second matching key

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the intended purpose of the invention, the specific implementation, structure, The method, steps, features and effects thereof are described in detail below.

The aforementioned and other technical contents, features and effects of the present utility model will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. For convenience of description, in the following embodiments, the same elements are denoted by the same numbers.

Please refer to Fig. 1 and Fig. 2, which is a preferred embodiment of the present utility model. A lock core with a replaceable key includes a lock case 10, a lock nut group 20 and a plurality of lock bead groups 30. In this implementation In an example, the lock housing 10 includes a hollow cylindrical portion 11, an extending protrusion 12 formed on one side of the hollow cylindrical portion 11, a fixing member 13, a swinging member 14, a positioning member 15 and a top Push the first spring 16 of the positioning member 15, the hollow cylindrical part 11 has an inner side wall 11a, an outer side wall 11b, and a slot 111 and a groove 112 recessed in the outer side wall 11b. In an embodiment, the slot 111 has a first slot portion 111a connecting the outer wall 11b and the inner wall 11a, a second slot portion 111b connecting the outer wall 11b and the inner wall 11a, and a The insertion groove portion 111c between the first slot portion 111a and the second slot portion 111b, wherein the first slot portion 111a is adjacent to the groove 112, and the insertion groove portion 111c communicates with the first slot portion 111a and the second slotted hole portion 111b. In addition, in this embodiment, a relief groove 113 is formed on both sides of the second grooved hole portion 111b, and each relief groove 113 communicates with the outer wall 11b and the inner wall 11a , the extending convex portion 12 has a plurality of locking bead holes 12a and straight grooves 12b, and the locking bead holes 12a and the straight grooves 12b communicate with the hollow cylindrical portion 11, and the fixing member 13 is arranged in the groove 112 , and the fixing member 13 has at least one elastic limiting portion 13a, the swinging member 14 is swingably pivoted on the slot hole 111, and the swinging member 14 has a locking portion 141 located at the first slot portion 111a 1. A rotating shaft 142 disposed in the slot portion 111c and a hook portion 143 disposed in the second slot portion 111b, please refer to FIG. 1 and FIG. 4 , in this embodiment, the swing mode of the swing member 14 is the same Similar to a seesaw, it uses the rotating shaft 142 as a fulcrum so that the swinging member 14 can swing in the slot 111 , and the clamping portion 141 of the swinging member 14 corresponds to the elastic limiting portion 13a of the fixing member 13 , and the clamping portion 141 can be fastened to the elastic limiting portion 13a. Preferably, the clamping portion 141 of the swing member 14 has a sawtooth structure 141a, through which the clamping portion 141 and the clamping portion 141 can be increased. The fastening strength of the elastic limiting portion 13 a of the fixing member 13 , and the positioning member 15 and the first spring 16 are disposed on the straight groove 12 b of the extending protrusion 12 .

Please refer to FIG. 1 and FIG. 2 , the lock core set 20 is disposed on the hollow cylindrical portion 11 of the lock housing 10 , the lock core set 20 includes a lock core body 21 , a positioning block 22 , and a pair of elastic fasteners 23 , a locking block 24 and a second spring 25 that can push the locking block 24, the lock core body 21 has a front end portion 21a, a middle portion 21b, a driving portion 21c, and a driving portion formed on the middle portion 21b The accommodating groove 211, a key hole 212, a plurality of lower bead holes 213 connecting the key hole 212 and the accommodating groove 211, a positioning groove 214 formed in the middle part 21b, and a through the driving part 21c and The perforation 215 of the accommodating groove 211 is communicated, and the lower locking bead hole 213 has an extending chute 213a, please refer to FIG. 1, FIG. 3 and FIG. slot 211, and the positioning block 22 has a slot 221 for engaging the swing member 14, a plurality of locking bead clamping slots 222 corresponding to the lower locking bead hole 213, and a surface 22a facing the slot hole 111 and a first convex portion 223, a second convex portion 224, and an intermediate convex portion 225 located between the first convex portion 223 and the second convex portion 224 protruding from the surface 22a, in this embodiment , the card slot 221 is recessed in the middle convex part 225, and the card slot 221 is an oblique slot, and the first convex part 223 and the second convex part 224 can be respectively located on the two sides of the middle convex part 225 and correspond to the Each of the relief slots 113 of the hollow cylindrical portion 11 and each of the elastic fasteners 23 are respectively arranged on the first protrusion 223 and the second protrusion 224 of the positioning block 22, and the positioning block 24 and the second protrusion Two springs 25 are disposed in the through hole 215 of the lock core body 21. In addition, the positioning block 22 has an end face 22b facing the locking block 24 and a first recess 226a and a first cavity 226a recessed in the end face 22b. Two recesses 226b. In this embodiment, one end of the locking block 24 can be selectively engaged with the first recess 226a or the second recess 226b.

Please refer to Fig. 1, Fig. 4 and Fig. 5, each locking bead group 30 includes an upper locking bead 31 and a combined lower locking bead 32, and the locking bead 31 is movably arranged on the extension protrusion of the lock housing 10 At least one upper lock bead hole 12a of the lock core body 21 and at least one lower lock bead hole 213 of the lock core body 21, the combined lower lock bead 32 is movably arranged at least one lower lock bead hole 213 of the lock core body 21 and the At least one locking bead clamping groove 222 of the positioning block 22, in this embodiment, the lower locking bead 32 of the combined type is a height-adjustable locking bead, and the lower locking bead 32 of the combined type includes an upper locking piece 321, a The lower locking piece 322 engaged by the upper locking piece 321 and an elastic member 323 arranged between the upper locking piece 321 and the lower locking piece 322, in this embodiment, the elastic member 323 is a spring, and the upper locking piece 321 has a rib 3211, an upper tooth 3212 and a top 3213, the rib 3211 is movably arranged on the extension chute 213a of the lower bead hole 213, the rib 3211 helps to guide the upper The locking piece 321 moves longitudinally and prevents the upper locking piece 321 from moving laterally, and the rib 3211 has a locking protrusion 3211a that engages with the locking bead clamping groove 222 of the positioning block 22 , and the upper tooth portion 3212 is formed on The rib 3211, the top 3213 has an upper fixing groove 3213a, the lower locking plate 322 has a lower tooth portion 3221 and a fixing portion 3222, and the fixing portion 3222 has a lower fixing groove 3222a, in this embodiment, the upper The upper tooth portion 3212 of the locking piece 321 engages with the lower tooth portion 3221 of the lower locking piece 322, and the two ends of the elastic member 323 are respectively fixed on the top 3213 of the upper locking piece 321 and the lower locking piece 322. The fixing portion 3222 , preferably, two ends of the elastic member 323 are respectively fixed to the upper fixing groove 3213 a of the top 3213 and the lower fixing groove 3222 a of the fixing portion 3222 .

Regarding the operation method of the lock core with replaceable key, please refer to FIG. 6 , which includes the step 400 of providing a lock core with a replaceable key, the step 410 of inserting the first matching key into the lock core body, and rotating the first matching key to Drive the lock body and the positioning block to rotate Step 420, apply a pulling force to the first matching key to displace the combined lower lock bead and push the swinging member Step 430, rotate the first matching key to drive the positioning block to engage with the swinging member , and disengage the upper lock plate and the lower lock plate step 440, extract the first matching key step 450, insert the second matching key into the lock body step 460, rotate the second matching key to release the engagement of the positioning block and the swinging member state, and re-engage the upper lock plate with the lower lock plate step 470 and extract the second mating key to complete the key replacement step 480 and other steps. First, please refer to Fig. 4, Fig. 5 and Fig. 6, in the step 400 of providing a lock cylinder with a replaceable key, it is to combine the lock case 10, the lock core group 20 and the lock bead group 30 to form a The lock core of the lock key can be replaced, and the upper lock piece 321 is engaged with the lower lock piece 322; after that, please refer to Fig. 6, Fig. 7 and Fig. 8, and insert the first matching key into the lock core body step In 410, a first matching key 50 is inserted into the key hole 212 of the lock body 21. In this embodiment, the first matching key 50 pushes the combined lower lock bead 32 to move upward to the rotating interface , the locking block 24 engages the first recess 226a; then, please refer to FIG. 6, FIG. 9 and FIG. A matching key 50 drives the lock core body 21 and the positioning block 22 to rotate to a predetermined angular position. In this embodiment, the first matching key 50 rotates 45 degrees clockwise, and the positioning of the lock core body 21 The slot 214 will meet the positioning piece 15, so that the positioning piece 15 falls into the positioning groove 214 and engages with the positioning groove 214. At the same time, the positioning piece 15 will connect the lock body 21, the positioning block 22 and all The combined lower locking bead 32 is positioned at a position of 45 degrees, and the upper locking piece 321 of the combined lower locking bead 32 is aligned with the first slot hole 111a and against the engagement portion of the swinging member 14 141, and the slot 223 of the positioning block 22 corresponds to the hook portion 143 of the swing member 14; then, referring to Fig. 6, Fig. 11 and Fig. 12, a pulling force is applied to the first mating key to make the combination In the step 430, a pull force is applied to the first matching key 50, and at this time, the teeth of the first matching key 50 will push the combined lower locking bead 32 to the second locking bead 32. A slotted hole portion 111a is displaced, and the upper locking piece 321 pushes the engagement portion 141 of the swinging member 14 to make the swinging member 14 swing with the rotating shaft 142 as a fulcrum. In this embodiment, due to The elastic limiting portion 13a of the fixing member 13 has elasticity itself, therefore, during the swinging process of the swinging member 14, in addition to providing space, it can also maintain a buckled state with the locking portion 141 of the swinging member 14 In addition, the hook portion 143 of the swinging member 14 protrudes from the inner wall 11a due to the swinging of the swinging member 14, and the front end area of the hooking portion 143 is inserted into the slot 223 of the positioning block 22 , and please refer to Fig. 13 and Fig. 14, in this embodiment, after applying a pulling force to the first matching key 50, it may further include applying a pushing force to the first matching key 50, so that the combined The lower locking bead 32 is reset, and the upper locking piece 321 is separated from the engagement portion 141 of the swinging member 14; then, please refer to Fig. 6, Fig. 15 and Fig. 16, and rotate the first mating key to drive The positioning block is engaged with the swinging member, and the upper locking plate and the lower locking plate are disengaged. In step 440, the first mating key 50 is rotated to drive the positioning block. The positioning block 22 is engaged with the swinging member 14. In this embodiment, the first mating key 50 is rotated counterclockwise by 10 degrees, so that the positioning block 22 protrudes from the accommodating groove 211 of the lock core body 21, And the first protruding part 223 and the second protruding part 224 of the positioning block 22 are respectively displaced in the respective relief grooves 113 of the hollow cylindrical part 11, and the middle protruding part 225 of the positioning block 22 is displaced In the second slot portion 111b, in this embodiment, the locking slot 223 is fully engaged with the hook portion 143 of the swing member 14, and at the same time, the upper locking piece 321 is supported by the positioning block 22. In addition, in this embodiment, the engagement state between the positioning member 15 and the positioning groove 214 will be released, and the locking block 24 will be displaced and engaged with the positioning slot 214. The second recess 226b; then, please refer to FIG. 6, FIG. 17 and FIG. 18, in the step 450 of extracting the first matching key, extract the first matching key 50, in this embodiment, extract the first matching key 50 , the lower lock piece 322 of the combined lower lock bead 32 is pushed by the elastic member 323 and falls to the lowest point; then, referring to Fig. 6, Fig. 19 and Fig. 20, the second matching In step 460 of inserting the key into the lock body, a second matching key 60 is inserted into the key hole 212 of the lock body 21. In this embodiment, the lower lock piece 322 of the combined lower lock bead 32 will As the tooth crest heights of the second mating key 60 are different, re-adjust the height; then, please refer to FIG. 6, FIG. 21 and FIG. And make the upper locking piece and the lower locking piece re-engage step 470, rotate the second mating key 60 to release the engaging state of the slot 223 of the positioning block 22 and the hook portion 143 of the swinging member 14. In this embodiment, the second mating key 60 is rotated clockwise, so that the positioning block 22 retracts into the accommodating groove 211 of the lock body 21, and drives the upper locking piece 321 and the lower locking piece 322 Re-engagement, and, in this embodiment, when the positioning block 22 retracts into the receiving groove 211 of the lock body 21, it will push the clasp part 143 of the swinging member 14, so that the clasp part 143 swings and retracts into the second slot portion 111b. In addition, please refer to FIG. 23 and FIG. 24, after rotating the second mating key 60 clockwise, the lock core of the replaceable key will return to the normal operation state; finally , please refer to FIG. 4 and FIG. 6 , in the step 480 of pulling out the second matching key to complete the key replacement, the second matching key 60 is pulled out to complete the key replacement procedure.

The above are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any Those who are familiar with this profession, without departing from the scope of the technical solution of the present utility model, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all without departing from the technical solution of the utility model Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (10)

1, a kind of core of replaceable key is characterized in that, it comprises:

One lock housing, it includes the swing component that a hollow tube-shape portion and is hubbed at this hollow tube-shape portion swingably;

One locks the benevolence group, is arranged at this hollow tube-shape portion of this lock housing, and it comprises:

One lock benevolence body, it has the following lock hole of bead of a storage tank, a key hole and this key hole of a plurality of connection and this storage tank; And

A positioning block, it is arranged at this storage tank of this lock benevolence body, and this locating piece has one can be for the draw-in groove and the described lock pearl clip slot in the lock hole of bead down of a plurality of correspondence of this swing component engaging; And

A plurality of combined types are the lock pearl down, and described combined type lock pearl down is arranged at this lock benevolence body movably, and each combined type down the lock pearl include a pair of upper collet that should lock the pearl clip slot and a following locking plate that can mesh with this upper collet.

2, the core of replaceable key according to claim 1, it is characterized in that wherein said lock housing includes an extension protuberance that is formed at this hollow tube-shape portion one side, this extension protuberance has the straight trough in a plurality of the lock hole of bead and the parallel described hole of beads of locking, and the described hole of bead and this straight trough of locking is communicated with this hollow tube-shape portion.

3, the core of replaceable key according to claim 2, but it is characterized in that wherein said lock housing includes first spring of positioning piece and this keeper of pushing tow in addition, and this keeper and this first spring are arranged at this straight trough of this extension protuberance.

4, the core of replaceable key according to claim 3 is characterized in that wherein said lock benevolence body has a locating slot, and this keeper of this lock housing can be sticked in this locating slot of this lock benevolence body.

5, the core of replaceable key according to claim 1 is characterized in that wherein said hollow tube-shape portion has an inside wall, a lateral wall and is arranged with the slotted eye in this lateral wall, and this swing component is hubbed at this slotted eye swingably.

6, the core of replaceable key according to claim 5, this slotted eye that it is characterized in that wherein said lock housing has this lateral wall of connection is communicated with this first slotted eye portion with the first slotted eye portion and of this inside wall caulking groove portion, and this swing component has the rotating shaft that this caulking groove portion is located in an Access Division and that is positioned at this first slotted eye portion.

7, the core of replaceable key according to claim 6 is characterized in that wherein said lock housing includes a fixture in addition, and this lock housing has one and be arranged with in the groove of this lateral wall and contiguous this first slotted eye portion, and this fixture is arranged at this groove.

8, the core of replaceable key according to claim 7 is characterized in that wherein said fixture has at least one elasticity limiting section, and this Access Division of this swing component can be buckled in this elasticity limiting section.

9, the core of replaceable key according to claim 5, this slotted eye that it is characterized in that wherein said lock housing has this lateral wall of connection is communicated with this second slotted eye portion with the second slotted eye portion and of this inside wall caulking groove portion, and this swing component has the rotating shaft that a hook part and that is positioned at this second slotted eye portion is located at this caulking groove portion.

10, the core of replaceable key according to claim 9, it is characterized in that wherein said locating piece has one towards the surface of this slotted eye and be convexly set in one first protuberance, the middle protuberance of one second protuberance and between this first protuberance and second protuberance on this surface, this draw-in groove is arranged with in this centre protuberance.

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