Anti-drilling and dustproof lock cylinder

Abstract

The anti-drilling and dustproof lock cylinder comprises a lock shell and a lock container, the lock container is contained in the lock shell and matched with the lock shell to form a dustproof cavity, the lock shell is provided with an outer lock hole for a key to be inserted into the dustproof cavity, and a blocking piece capable of moving relative to the lock shell to open and close the outer lock hole is arranged in the dustproof cavity. The lock cylinder is configured to be the lock shell and the lock liner which is contained in the lock shell and matched with the lock shell to form the dustproof cavity, the lock shell is provided with the outer lock hole allowing the key to be inserted into the dustproof cavity, and the blocking piece capable of moving relative to the lock shell to open and close the outer lock hole is arranged in the dustproof cavity, so that the outer lock hole can be closed through the blocking piece; the outer lock hole is in a closed state when the key is not inserted, dust and foreign matter are prevented from entering the lock cylinder through the outer lock hole to cause pollution or blockage of the lock cylinder, and meanwhile, due to the fact that the blocking piece can move to open the outer lock hole, the key can be inserted into the outer lock hole to unlock the lock.

Description

Technical Field

[0001] The utility model relates to a lock, in particular to an anti-drilling and dust-proof lock core. Background Art

[0002] A door lock is an anti-theft device installed on a door body, and the lock core is its core component. The lock core of an existing door lock includes a lock shell and a lock cylinder disposed within the lock shell. A keyhole is formed on the lock shell for inserting a key into the lock core to lock or unlock. Since the keyhole for inserting the key is formed on the lock shell, part of the lock core is exposed, and dust and foreign objects can easily enter the lock cylinder through the keyhole, causing pollution or even blockage of the lock cylinder. Content of the Utility Model

[0003] The purpose of the utility model is to provide an anti-drilling and dust-proof lock core to solve the problem that dust and foreign objects can easily enter the lock cylinder through the keyhole, causing pollution or even blockage of the lock cylinder.

[0004] The utility model is realized through the following technical solutions:

[0005] An anti-drilling and dust-proof lock core, comprising a lock shell and a lock cylinder. The lock cylinder is accommodated within the lock shell and cooperates with the lock shell to form a dust-proof cavity. The lock shell has an outer keyhole for inserting the key into the dust-proof cavity. A blocking member capable of moving relative to the lock shell to open and close the outer keyhole is disposed within the dust-proof cavity.

[0006] Further, an elastic member for driving the blocking member to move to close the outer keyhole is disposed within the dust-proof cavity.

[0007] Further, both the blocking member and the elastic member are two and correspond to each other one by one. The two blocking members are oppositely disposed in the radial direction of the outer keyhole. The direction from one blocking member to the other is defined as the closing direction. The two blocking members move in the closing direction under the drive of the corresponding elastic member to close the outer keyhole.

[0008] Further, a guiding groove and a positioning groove communicating with the guiding groove are formed on one side of the lock cylinder opposite to the outer keyhole. The blocking member is accommodated within the guiding groove and can move along the guiding groove to open and close the outer keyhole. One end of the elastic member abuts against the blocking member and the other end is placed within the positioning groove.

[0009] Further, the two blocking members are vertically opposite. Two stop blocks are disposed on the left and right sides of the outer keyhole within the dust-proof cavity. The stop blocks are located between the two blocking members. After the two blocking members cooperate to close the outer keyhole, they abut against the stop blocks.

[0010] Further, the end of the elastic member abutting against the blocking member acts on the middle of the blocking member.

[0011] Further, the plugging member is cylindrical in shape.

[0012] Further, the lock housing includes a shell cylinder and a cover plate. The shell cylinder and the cover plate are detachably and fixedly connected to enclose an assembly cavity. The lock core is accommodated in the assembly cavity and is spaced apart from the cover plate to form the dust-proof cavity.

[0013] Further, the lock core has an inner lock hole that is front and rear opposite to the outer lock hole. When the plugging member moves relative to the lock housing, the outer lock hole and the inner lock hole are synchronously opened and closed.

[0014] The advantages of this technical solution are as follows: By configuring the lock core as a lock housing and a lock core accommodated in the lock housing and cooperating with the lock housing to form a dust-proof cavity, the lock housing has an outer lock hole for the key to be inserted into the dust-proof cavity, and a plugging member capable of moving relative to the lock housing to open and close the outer lock hole is provided in the dust-proof cavity. Therefore, the outer lock hole can be closed by the plugging member, so that the outer lock hole is in a closed state when the key is not inserted, avoiding dust and foreign objects from entering the lock core through the outer lock hole, causing pollution or blockage of the lock core. At the same time, since the plugging member can move to open the outer lock hole, the key can be inserted into the outer lock hole to unlock. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments.

[0017] Figure 1 is a perspective view of the anti-drilling and dust-proof lock core disclosed in the embodiment;

[0018] Figure 2 is a cross-sectional view of the anti-drilling and dust-proof lock core disclosed in the embodiment;

[0019] Figure 3 is Figure 2 a partial enlarged view of the position A in

[0020] Figure 4 is the front view (hiding the cover plate) of the anti-drilling and dust-proof lock core disclosed in the embodiment;

[0021] Figure 5 is an exploded view of the anti-drilling and dust-proof lock core disclosed in the embodiment. Detailed Embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment: As Figures 1-5 shown, the anti-drilling and dust-proof lock core includes a lock shell 1 and a lock cylinder 2. A blade assembly 3 and a locking piece 4 are provided in the lock cylinder 2. The lock cylinder 2 is accommodated in the lock shell 1 and cooperates with the lock shell 1 to form a dust-proof cavity 101. The lock shell 1 has an outer lock hole 102 for inserting a key into the dust-proof cavity 101. A blocking member 5 that can move relative to the lock shell 1 to open and close the outer lock hole 102 is provided in the dust-proof cavity 101. In the initial state, the blocking member 5 closes the outer lock hole 102. When the key is inserted into the outer lock hole 102, the blocking member 5 moves relative to the lock shell 1 under the pushing action of the key to open the outer lock hole 102. It should be noted that after the key is inserted into the outer lock hole 102, it is inserted into the lock cylinder 2 to lock or unlock the lock core. This embodiment provides an anti-drilling and dust-proof lock core to solve the problem that dust and foreign objects easily enter the lock cylinder through the lock hole, causing pollution or even blockage of the lock cylinder. It mainly configures the lock core into a lock shell 1 and a lock cylinder 2 accommodated in the lock shell 1 and cooperating with the lock shell 1 to form a dust-proof cavity 101. The lock shell 1 has an outer lock hole 102 for inserting a key into the dust-proof cavity 101. A blocking member 5 that can move relative to the lock shell 1 to open and close the outer lock hole 102 is provided in the dust-proof cavity 101. Therefore, the outer lock hole 102 can be closed by the blocking member 5, so that the outer lock hole 102 is in a closed state when the key is not inserted, avoiding dust and foreign objects from entering the lock cylinder 2 through the outer lock hole 102, causing pollution or blockage of the lock cylinder 2. At the same time, since the blocking member 5 can move to open the outer lock hole 102, the key can be inserted into the outer lock hole 102 to unlock.

[0024] In the embodiment of the present invention, an elastic member 6 for driving the blocking member 5 to move and close the outer lock hole 102 is provided in the dust-proof cavity 101. Specifically, the elastic member 6 is a spring. Since an elastic member 6 for driving the blocking member 5 to move and close the outer lock hole 102 is provided in the dust-proof cavity 101, the blocking member 5 can automatically reset to close the outer lock hole 102 after the key is pulled out, and the blocking member 5 moves to make way and open the outer lock hole 102 when the key is inserted. The driving structure is simple and easy to implement.

[0025] In the embodiment of the present invention, the end of the elastic member 6 that abuts against the blocking member 5 acts on the middle part of the blocking member 5. Since the end of the elastic member 6 that abuts against the blocking member 5 acts on the middle part of the blocking member 5, the blocking member 5 is evenly stressed when moving under the drive of the elastic member 6 and is not easily tilted towards one end.

[0026] In the embodiment of the present utility model, both the plugging member 5 and the elastic member 6 are two and correspond one by one. The two plugging members 5 are arranged opposite to each other in the radial direction of the outer lock hole 102. The direction of one plugging member 5 towards the other plugging member 5 is defined as the closing direction. The two plugging members 5 move towards the closing direction under the drive of the corresponding elastic member 6 to close the outer lock hole 102. Through the above arrangement, by configuring both the plugging member 5 and the elastic member 6 into two and corresponding one by one, and the two plugging members 5 move towards the closing direction under the drive of the corresponding elastic member 6 to close the outer lock hole 102, the plugging member 5 has a good opening and closing effect when the key is inserted or withdrawn, and it is convenient for the key to be inserted or withdrawn.

[0027] In the embodiment of the present utility model, on the side of the lock cylinder 2 opposite to the outer lock hole 102, a guiding groove 201 and a positioning groove 202 communicating with the guiding groove 201 are formed. The plugging member 5 is accommodated in the guiding groove 201 and can move along the guiding groove 201 to open and close the outer lock hole 102. One end of the elastic member 6 abuts against the plugging member 5 and the other end is placed in the positioning groove 202. Through the above arrangement, by providing the guiding groove 201 that slidably cooperates with the plugging member 5 and the positioning groove 202 for one end of the elastic member 6 to be placed on the lock cylinder 2, the movement of the plugging member 5 to open and close the outer lock hole 102 is stable and smooth, and the elastic member 6 has good driving stability.

[0028] In the embodiment of the present utility model, the two plugging members 5 are arranged vertically opposite to each other. In the dust-proof cavity 101, there are two stop blocks 7 respectively arranged beside the left and right sides of the outer lock hole 102. The stop blocks 7 are located between the two plugging members 5. After the two plugging members 5 cooperate to close the outer lock hole 102, they abut against the stop blocks 7. Through the above arrangement, by respectively arranging the stop blocks 7 located between the two plugging members 5 beside the left and right sides of the outer lock hole 102, after the two plugging members 5 cooperate to close the outer lock hole 102, they abut against the stop blocks 7, restricting the excessive movement of the plugging members 5 in the closing direction and causing the outer lock hole 102 to be not tightly closed.

[0029] In the embodiment of the present utility model, the plugging member 5 is cylindrical. Since the plugging member 5 is cylindrical, when the plugging member 5 moves relative to the lock shell 1 to open and close the outer lock hole 102, it is in rolling connection with the lock shell 1 and / or the lock cylinder 2, with less friction and smooth movement.

[0030] In the embodiment of the present utility model, the lock shell 1 includes a shell cylinder 103 and a cover plate 104. The shell cylinder 103 and the cover plate 104 are detachably and fixedly connected to enclose and form an assembly cavity 105. The lock cylinder 2 is accommodated in the assembly cavity 105 and is spaced from the cover plate 104 to form a dust-proof cavity 101. Through the above arrangement, by configuring the lock shell 1 into the shell cylinder 103 and the cover plate 104 that are detachably and fixedly connected to enclose and form the assembly cavity 105, and the lock cylinder 2 is accommodated in the assembly cavity 105 and is spaced from the cover plate 104 to form the dust-proof cavity 101, it is convenient for the disassembly and assembly of the lock shell 1 and the lock cylinder 2.

[0031] In the embodiment of the present utility model, the lock cylinder 2 has an inner lock hole 203 that is opposite to the outer lock hole 102 in the front and back directions. When the plugging member 5 moves relative to the lock shell 1, the outer lock hole 102 and the inner lock hole 203 are opened and closed synchronously. Since the outer lock hole 102 and the inner lock hole 203 are opened and closed synchronously when the plugging member 5 moves relative to the lock shell 1, the plugging member 5 has a good opening and closing effect.

[0032] It should be understood that in the present utility model, terms such as "first" and "second" are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the orientation or positional relationship indicated by terms such as "center of the circle", "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 present utility model and simplifying the description, rather than indicating or implying 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 a limitation to the present utility model.

[0033] As described above, one or more embodiments are provided in combination with specific contents, and it is not determined that the specific implementation of the present utility model is only limited to these descriptions. Any method, structure, etc. that is similar or identical to the present utility model, or any technical deduction or replacement made under the premise of the concept of the present utility model should be regarded as within the protection scope of the present utility model.

Claims

1. A drill-proof and dust-proof lock core, comprising a lock shell and a lock core, characterized in that: The lock core is accommodated in the lock shell and cooperates with the lock shell to form a dustproof cavity. The lock shell has an outer lock hole for a key to be inserted into the dustproof cavity. A blocking member is provided in the dustproof cavity and can move relative to the lock shell to open and close the outer lock hole.

2. The anti-drilling and anti-dust lock cylinder according to claim 1, characterized in that: An elastic member for driving the blocking member to move and close the outer locking hole is arranged in the dustproof cavity.

3. The anti-drilling and anti-dust lock cylinder according to claim 2, characterized in that: There are two blocking members and two elastic members in one-to-one correspondence. The two blocking members are arranged opposite to each other in the radial direction of the outer locking hole. The direction of one blocking member toward the other blocking member is defined as the closing direction. The two blocking members move toward the closing direction to close the outer locking hole under the drive of the corresponding elastic member.

4. The anti-drilling and anti-dust lock cylinder according to claim 2 or 3, characterized in that: A guide groove and a positioning groove connected to the guide groove are formed on the side of the lock core opposite to the outer lock hole. The blocking member is accommodated in the guide groove and can move along the guide groove to open and close the outer lock hole. One end of the elastic member abuts against the blocking member and the other end is placed in the positioning groove.

5. The anti-drilling and anti-dust lock core according to claim 3, characterized in that: The two blocking members are opposed to each other up and down, and two stop blocks are arranged in the dustproof cavity, which are arranged on the left and right sides of the outer locking hole. The stop block is located between the two blocking members, and the two blocking members abut against the stop block after cooperating to close the outer locking hole.

6. The anti-drilling and anti-dust lock cylinder according to claim 2, characterized in that: One end of the elastic member that abuts against the blocking member acts on the middle portion of the blocking member.

7. The anti-drilling and anti-dust lock cylinder according to claim 1, characterized in that: The blocking member is cylindrical.

8. The anti-drilling and anti-dust lock cylinder according to claim 1, characterized in that: The lock housing comprises a shell tube and a cover plate, wherein the shell tube and the cover plate are detachably fixedly connected to enclose an assembly cavity, and the lock core is accommodated in the assembly cavity and spaced apart from the cover plate to form the dustproof cavity.

9. The anti-drilling and anti-dust lock cylinder according to claim 1, characterized in that: The lock core has an inner lock hole which is opposite to the outer lock hole in front and back, and the blocking member opens and closes the outer lock hole and the inner lock hole synchronously when it moves relative to the lock shell.

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