Spring-free blade lock cylinder structure and key

Abstract

The spring-free blade lock cylinder structure comprises a lock sleeve and a lock cylinder arranged in the lock sleeve, a connector is arranged on the lock cylinder, a lock hole is formed in the axial direction of the lock cylinder, at least two blades are arranged on the lock hole, and the blades are arranged in the lock sleeve. The installation directions of all the blades in the lock hole of the lock cylinder are consistent, a reset piece is arranged on the end face, corresponding to the lock hole, of the connector, an insertion groove is formed in the end face, corresponding to the lock hole, of the connector, an insertion hole is formed in the end face, away from one side of the connector, of the lock sleeve, and the insertion hole is communicated with the insertion groove. The insertion hole, the lock hole and the insertion groove are coaxially arranged, and a clamping ring is arranged on the connector in the lock sleeve. On the basis that the anti-theft performance is kept, the structure is simpler, production, manufacturing and installation are more facilitated, the production and manufacturing difficulty is reduced, the production and manufacturing cost is further reduced, and batch production and manufacturing are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a springless blade lock core structure and a key. Background Art

[0002] A known lock is an instrument that functions as a seal, including a lock, a key, and accessories. For example, Chinese utility model patent No. CN2799763Y discloses a serpentine cross springless blade lock and key. The lock is characterized by a springless lock core having blades arranged in two directions in the shape of a cross. The blades in the two directions are spaced apart, adjacent blades are abutted without spacing, and each blade is of equal length and has the same outer diameter as the lock core. The keyholes on the blades in the same direction have equal lengths and different positions, so that the keyholes in the blades in the same direction form a serpentine track of equal width along the axial direction when the keyhole is open. The outer ends of the blades are inserted into axial holes at corresponding positions in the lock core body. The lock head body, which is configured to cooperate with the lock core body, has corresponding positioning grooves. As an anti-theft device, this springless lock core has blades in two directions in the shape of a cross, namely, a longitudinal blade and a transverse blade. The blades in the two directions are spaced apart, adjacent blades are abutted without spacing, which increases the difficulty of production and assembly, is time-consuming and labor-intensive, and increases the cost of manufacturing. This is not conducive to mass production and is therefore not conducive to large-scale promotion and application. Utility Model Content

[0003] (1) Technical issues that need to be resolved

[0004] In response to the shortcomings of the existing technology, the utility model provides a springless blade lock core structure and key, which has a simpler structure while maintaining anti-theft properties, which is more conducive to production and installation, reduces the difficulty of production, further reduces the cost of production, is conducive to mass production, and ultimately is also conducive to large-scale promotion and application.

[0005] (2) Technical solutions that need to be adopted

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A springless blade lock core structure includes a lock sleeve and a lock core arranged inside the lock sleeve, a connecting head is provided on the lock core, a lock hole is provided in the axial center of the lock core, and at least two blades are provided on the lock hole, all of the blades are installed in the same direction in the lock hole of the lock core, and all of the blades are equal in length and equal to the outer diameter of the lock core, a reset piece is provided on the end face of the connecting head corresponding to the lock hole, a slot is provided on the end face of the connecting head corresponding to the lock hole, and a socket is provided on the end face of the lock sleeve away from the connecting head, the socket, lock hole and slot are all arranged on the same axis, and a retaining ring is provided on the connecting head at the internal position of the lock sleeve.

[0008] Preferably, the reset member is a spring.

[0009] Preferably, the spring is in a trumpet shape.

[0010] Preferably, the connecting head includes a rotatable main body arranged inside the lock sleeve, a head is provided on one end surface of the main body, the head extends from one end surface of the lock sleeve, the other end surface of the main body is provided with paired distributed blocks, and the other end surface of the main body is provided with a mounting groove for installing the reset member, the mounting groove is provided with the slot, the main body and the lock sleeve are clearance-fitted, and a card groove is provided on the end surface of the lock core for engaging with the card block of the main body.

[0011] Preferably, the main body, head and block are all integrally formed.

[0012] Preferably, the snap ring is square, and a notch is provided on the square snap ring. The square snap ring is sleeved on the head, and the locking sleeve is provided with mounting positions for placing the four corners of the square snap ring.

[0013] Preferably, the lock core includes a core body that is clearance-fitted with the lock sleeve, and the core body is provided with slots that are arranged axially parallel and perpendicular to the axis and are consistent with the number of the blades, and the inner side wall of the core body is provided with corresponding track grooves distributed axially.

[0014] Preferably, the blade includes a frame with a central hole, and bosses are symmetrically distributed on the frame. The frame rotates in the lock core to enable the bosses to enter and exit the side walls of the lock core, and ears with certain position changes are provided on the side walls of the central hole.

[0015] Preferably, the boss is in a dovetail shape.

[0016] Preferably, bumps are distributed in pairs on the inner sidewall of the slot.

[0017] The utility model also discloses a key for use with the springless blade lock core structure of the above-mentioned technical solution, comprising a handle portion and an insertion rod portion, wherein the handle portion and the insertion rod portion are integrally formed, and the two side surfaces of the insertion rod portion are provided with mutually symmetrical curved grooves, and the insertion rod portion is provided with mutually symmetrically distributed concave and convex teeth, and the insertion rod portion is distributed symmetrically along the axial direction of the insertion rod portion, and the end surface of the concave and convex teeth can be used to contact the reset member.

[0018] Preferably, concave grooves are provided on both sides of the end surface of the inserting rod portion for enabling the inserting rod portion to be inserted into the slot on the end surface of the connecting head for matching.

[0019] (3) Technical effects to be achieved

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] Firstly, the lock core of the present invention is provided with a connector, a lock hole is provided in the axial center of the lock core, and at least two blades are provided on the lock hole. The installation directions of all blades in the lock hole of the lock core are consistent, and the lengths of all blades are equal and equal to the outer diameter of the lock core. A reset piece is provided on the end face of the connector corresponding to the lock hole, and a slot is provided on the end face of the connector corresponding to the lock hole, and a socket is provided on the end face of the lock sleeve away from the connector. The socket, lock hole and slot are all arranged on the same axis, and a snap ring is provided on the connector at the internal position of the lock sleeve. The structure is simpler while maintaining anti-theft performance, which is more conducive to production and installation, reduces the difficulty of production, further reduces the cost of production, is conducive to mass production, and ultimately is also conducive to large-scale promotion and application.

[0022] Secondly, the utility model provides a key for use with the springless blade lock core structure of the above-mentioned technical solution, including a handle part and an insertion rod part. The handle part and the insertion rod part are integrally formed, and the two side surfaces of the insertion rod part are provided with mutually symmetrical curved grooves. The insertion rod part is provided with mutually symmetrically distributed concave and convex teeth, which are distributed symmetrically along the axial direction of the insertion rod part, and the end surface of the concave and convex teeth can be used to contact the reset part. This arrangement not only makes it easier for users to open and close during operation, but also makes the anti-theft effect better, which is more conducive to meeting the user's usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an exploded schematic diagram of a springless blade lock core structure of the utility model.

[0024] Figure 2 This is a schematic diagram of the main viewing direction of a springless blade lock core structure of the utility model.

[0025] Figure 3 for Figure 2 Cross-sectional view along the AA direction.

[0026] Figure 4 This is a schematic diagram of the socket structure on the lock sleeve of the utility model.

[0027] Figure 5 This is a schematic diagram of the assembly of the lock core, connector, lock hole and snap ring of the utility model.

[0028] Figure 6 This is a schematic diagram of the lock hole structure on the lock core of the utility model.

[0029] Figure 7 This is a schematic diagram of the slot structure on the connector of the utility model.

[0030] Figure 8 The utility model is a schematic diagram of a key structure.

[0031] Figure 9 This is an overall schematic diagram of a key of the present utility model.

[0032] Figure 10 This is a schematic diagram of a key about to be inserted into a springless blade lock core structure according to the present invention.

[0033] Figure 11 This is a schematic diagram of a key about to be inserted into a springless blade lock core structure according to the present invention.

[0034] Figure 12 This is a schematic diagram of the main view of a key about to be inserted into a springless blade lock core structure according to the present invention.

[0035] Figure 13 for Figure 12 Middle BB cross-section view.

[0036] In the figure: 1, lock sleeve; 2, lock core; 3, connector; 4, lock hole; 5, blade; 6, reset piece; 7, slot; 8, jack; 9, snap ring; 21, core; 22, slot; 23, track slot; 31, main body; 32, head; 33, block; 34, mounting slot; 51, center hole; 52, frame; 53, boss; 54, ear teeth.

[0037] 10, handle portion; 20, rod insertion portion; 201, curved groove; 202, concave and convex teeth; 203, concave groove. DETAILED DESCRIPTION

[0038] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0039] In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0040] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0041] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0042] Example 1: See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 , a springless blade lock core structure, comprising a lock sleeve 1 and a lock core 2 arranged inside the lock sleeve 1, a connector 3 is provided on the lock core 2, the connector 3 is used to be connected to the lock core (shown in the figure), and the lock sleeve 1 is arranged in the lock core, a lock hole 4 is provided in the axial direction of the lock core 2, at least two blades 5 are provided on the lock hole 4, all of the blades 5 are installed in the lock hole 4 of the lock core 2 in the same direction, and all of the blades 5 are equal in length and equal to the outer diameter of the lock core 2, a reset member 6 is provided on the end face of the connector 3 corresponding to the lock hole 4, and a slot 7 is provided on the end face of the connector 3 corresponding to the lock hole 4, and a socket 8 is provided on the end face of the lock sleeve 1 away from the connector 3. The socket 8, the lock hole 4 and the slot 7 are all arranged on the same axis, and a snap ring 9 is provided on the connector 3 at the internal position of the lock sleeve 1. All blades 5 in the present invention are installed in the same direction, which reduces the difficulty of installation, is conducive to mass production and manufacturing, and ultimately is conducive to large-scale promotion and application. The overall structure is also simpler, which is convenient for production and manufacturing, reduces the cost of production and manufacturing, is conducive to mass production and manufacturing, and ultimately is conducive to large-scale promotion and application.

[0043] Example 2: It can be explained based on Example 1, as shown in Figure 1 As shown, the reset member 6 is a spring, which is conducive to automatically withdrawing the key from the lock cylinder 2 after the key is locked. Further explanation: the spring is trumpet-shaped, which is conducive to better compressing the trumpet-shaped spring while pushing the key to move a certain distance.

[0044] Example 3: This can be explained based on Example 1 or Example 2, such as Figure 1 and Figure 7 As shown, the connecting head 3 includes a rotatable main body 31 arranged inside the lock sleeve 1, and a head 32 for connecting to the lock core is provided on one end face of the main body 31, and the head 32 extends from one end face of the lock sleeve 1. This arrangement is conducive to the connection of the head 32 with the lock core, and the other end face of the main body 31 is provided with paired card blocks 33, and the other end face of the main body 31 is provided with a mounting groove 34 for installing the reset member 6. This arrangement is reasonable and facilitates the installation of the reset member 6. A slot 7 is provided in the mounting groove 34, and the main body 31 and the lock sleeve 1 are clearance-fitted, and a card groove for engaging with the card block 33 of the main body 31 is provided on the end face of the lock cylinder 2. This arrangement makes the connecting head 3 and the lock cylinder 2 clamped together.

[0045] like Figure 1 and Figure 7 As shown, it is further explained that the main body 31, the head 32 and the block 33 are all integrally formed, which greatly improves the firmness of the structure.

[0046] like Figure 1 and Figure 3As shown, it is further explained that the snap ring 9 is square and has a notch. This type of snap ring 9 facilitates one-time molding through molds, reduces post-processing, and improves production efficiency. The square snap ring 9 is sleeved on the head 32, and the lock sleeve 1 is provided with mounting positions for the four corners of the square snap ring 9. This arrangement facilitates the installation of the snap ring 9. Further explanation is given that the mounting positions are grooves or holes, and there are various types to provide people with a wide range of options. In the present utility model, the square snap ring 9 is placed in the lock sleeve 1 and sleeved on the head 32, which facilitates installation and removal.

[0047] Example 4: This can be explained based on Example 1, Example 2, or Example 3. Figure 1 and Figure 6 As shown, the lock core 2 includes a core body 21 that is clearance-fitted with the lock sleeve 1. Slots 22 are arranged on the core body 21 in parallel along the axial direction and perpendicular to the axis, and the number of the same number of blades 5 is consistent. Each blade 5 comes out of the corresponding slot 22, which is conducive to the anti-theft effect. The inner side wall of the core body 21 is distributed along the axial direction. Corresponding track grooves 23 are distributed. In this embodiment, there are four blades 5 and four slots 22.

[0048] Example 5: This can be explained based on Example 1, Example 2, Example 3, or Example 4. Figure 1 As shown, the blade 5 includes a frame 52 with a center hole 51, and bosses 53 are symmetrically distributed on the frame 52. The frame 52 rotates in the lock cylinder 2 to enable the bosses 53 to enter and exit the side walls of the lock cylinder 2. Ear teeth 54 with certain position changes are provided on the side walls of the center hole 51. This arrangement is reasonable and convenient for corresponding to the curved groove 201 in the subsequent key, which is conducive to achieving password confidentiality.

[0049] like Figure 1 As shown, it is further explained that the boss 53 is in a dovetail shape. This arrangement is more conducive to increasing the difficulty of preventing the blades 5 from being moved, thereby improving the effectiveness of the anti-prying technology. It is further explained that the frame 52, boss 53 and ear teeth 54 are integrally formed, which improves the structural firmness. In this embodiment, there are four blades 5. The inner side surfaces of the two ends of the center hole 51 of two blades 5 are provided with groove 1, and the inner side surfaces of one end of the center hole 51 of the other two blades 5 are provided with groove 2. This arrangement allows the two blades 5 with groove 2 on the inner side surfaces of one end of the center hole 51 to be placed between the two blades 5 with groove 1 on the inner side surfaces of both ends of the center hole 51. When the two blades 5 in the middle position are placed, the inner side surfaces of the adjacent center holes 51 at one end have groove 2, which is staggered. It can be seen that this arrangement increases the difficulty coefficient of being moved, which is conducive to improving the anti-theft effect. The number of blades 5 can be determined according to actual conditions.

[0050] Example 6: This can be explained on the basis of Example 1, Example 2, Example 3, Example 4, or Example 5. Figure 7 As shown, pairs of protrusions are distributed on the inner sidewall of slot 7. These protrusions can be varied in distance and left-right position. This arrangement facilitates corresponding engagement with the concave groove 203 of the inserting rod 20 of the subsequent key. This facilitates mutual engagement, preventing keys with different configurations from being inserted into the same key, significantly enhancing the uniqueness of the keys. In this embodiment, the corresponding protrusions are staggered on the inner sidewall of slot 7. This arrangement is rational, more convenient to implement, and more stable and reliable in operation.

[0051] Embodiment 7: Based on the embodiment 1 or embodiment 2 or embodiment 3 or embodiment 4 or embodiment 5 or embodiment 6, Figure 8 and Figure 9 As shown, the present invention also provides a key for use with the springless blade lock core structure of the above technical solution, including a handle portion 10 and a rod portion 20, the handle portion 10 and the rod portion 20 are integrally formed, and the two side surfaces of the rod portion 20 are provided with mutually symmetrical curved grooves 201, and the rod portion 20 is provided with mutually symmetrically distributed concave and convex teeth 202 distributed along the axial direction of the rod portion 20, and the end surface of the concave and convex teeth 202 can be used to contact the reset member 6, as shown in FIG. Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, when the rod portion 20 is inserted from the insertion hole 8 through the lock hole 4 into the slot 7, the curved groove 201 on the rod portion 20 matches the ear teeth 54 of all the blades 5 that change to a certain position. Then, the rotation of the handle portion 10 will also cause the rod portion 20 to rotate, and the rod portion 20 will cause all the blades 5 to be moved, which is conducive to achieving password confidentiality, thereby improving the anti-theft effect.

[0052] like Figure 8 and Figure 9 As shown, it is further explained that the two sides of the end surface of the insertion rod portion 20 are provided with concave grooves 203 for making the insertion rod portion 20 inserted into the slot 7 of the end surface of the connector 3 more tightly, as shown in FIG. Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, when the rod portion 20 is inserted from the insertion hole 8 through the lock hole 4 into the slot 7, the rod portion 20 is more tightly connected to the slot 7. Since the inner wall of the slot 7 has paired protrusions, and the protrusions can be changed according to a certain distance and left and right positions, this arrangement is conducive to corresponding cooperation with the concave groove 203 of the rod portion 20 in the subsequent key, which is conducive to mutual cooperation to achieve the corresponding insertion of keys with different settings, which greatly enhances the uniqueness of the keys.

[0053] The standard parts used in this application document can all be purchased from the market, and the specific connection methods of each part adopt conventional means such as mature bolts, rivets and lock cores in the existing technology, which will not be described in detail here.

[0054] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present utility model. Therefore, based on the innovative concept of the present utility model, changes and modifications to the embodiments described herein, or equivalent structural or process transformations made using the contents of the present utility model specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields are all included in the scope of protection of the present utility model patent.

Claims

1. A springless blade lock core structure, comprising a lock sleeve (1) and a lock core (2) arranged inside the lock sleeve (1), characterized in that: The lock core (2) is provided with a connector (3), a lock hole (4) is provided in the axial direction of the lock core (2), and at least two blades (5) are provided on the lock hole (4), all of the blades (5) are installed in the same direction in the lock hole (4) of the lock core (2), and all of the blades (5) are equal in length and equal in outer diameter to the lock core (2), a reset member (6) is provided on the end face of the connector (3) corresponding to the lock hole (4), and a slot (7) is provided on the end face of the connector (3) corresponding to the lock hole (4), and a socket (8) is provided on the end face of the lock sleeve (1) away from the connector (3), the socket (8), the lock hole (4) and the slot (7) are all arranged on the same axis, and a snap ring (9) is provided on the connector (3) at an inner position of the lock sleeve (1).

2. The springless blade lock core structure according to claim 1, characterized in that: The reset member (6) is a spring.

3. The springless blade lock core structure according to claim 2, characterized in that: The spring is in a trumpet shape.

4. The springless blade lock core structure according to claim 1, characterized in that: The connector (3) comprises a rotatable main body (31) arranged inside the lock sleeve (1); a head (32) is provided on one end face of the main body (31); the head (32) extends from one end face of the lock sleeve (1); a pair of card blocks (33) are provided on the other end face of the main body (31); and a mounting groove (34) for mounting the reset member (6) is provided on the other end face of the main body (31); the slot (7) is provided in the mounting groove (34); the main body (31) and the lock sleeve (1) are clearance-fitted; and a card groove for engaging with the card block (33) of the main body (31) is provided on the end face of the lock core (2).

5. The springless blade lock core structure according to claim 4, characterized in that: The snap ring (9) is square, and a notch is provided on the square snap ring (9). The square snap ring (9) is sleeved on the head (32), and the lock sleeve (1) is provided with mounting positions for placing the four corners of the square snap ring (9).

6. The springless blade lock core structure according to claim 1, 2, 3, 4 or 5, characterized in that: The blade (5) comprises a frame (52) with a central hole (51), and bosses (53) are symmetrically distributed on the frame (52). The frame (52) rotates in the lock core (2) to enable the bosses (53) to enter and exit the side wall of the lock core (2). Ear teeth (54) with a certain position change are provided on the side wall of the central hole (51).

7. The springless blade lock core structure according to claim 6, characterized in that: The boss (53) is in a dovetail shape.

8. The springless blade lock core structure according to claim 1, 2, 3, 4, 5 or 7, wherein: Bumps are distributed in pairs on the inner side wall of the slot (7).

9. A key for use with the springless blade lock core structure according to any one of claims 1 to 8, comprising a handle portion (10) and an inserting rod portion (20), wherein the handle portion (10) and the inserting rod portion (20) are integrally formed, and characterized in that: The two side surfaces of the insertion rod portion (20) are provided with mutually symmetrical curved grooves (201), and the insertion rod portion (20) is provided with mutually symmetrically distributed concave and convex teeth (202) distributed symmetrically along the axial direction of the insertion rod portion (20), and the end surfaces of the concave and convex teeth (202) can be used to contact the reset member (6).

10. The key according to claim 9, wherein: Concave grooves (203) are provided on both sides of the end surface of the inserting rod portion (20) for enabling the inserting rod portion (20) to be inserted into the slot (7) on the end surface of the connector (3).

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