A conversion device for converting a cam lock cylinder into a gear lock cylinder

Abstract

The present invention provides a conversion device for converting a cam lock core into a gear lock core, belonging to the technical field of locks. It solves the problems that the existing cam lock cores and gear lock cores cannot be used interchangeably, etc. The present invention includes a body, a first limiting portion and a second limiting portion. The body is in a ring shape with an opening, and external teeth are provided on the outer periphery. The body is divided into a rotating section and an extending section. The first limiting portion and the second limiting portion respectively extend from the corresponding side surfaces of the extending section along the axial direction of the body away from the extending section. The body is sleeved on the upper part of the lock shell, and the shape and size of the inner hole of the body are adapted to the upper part of the lock shell. The rotating section is located at the cam groove, and during the rotation of the cam, the extending section can be pushed to make the rotating section rotate into and pass through the cam groove. The advantage of the present invention lies in that it can convert a cam lock core into a gear lock core for use.

Description

Technical Field

[0001] The invention belongs to the technical field of locks, relates to a lock core, and in particular to a conversion device for converting a cam lock core into a gear lock core. Background Art

[0002] Existing lock cylinders are mainly divided into cam lock cylinders and gear lock cylinders. The cam lock cylinder is a more common one. Due to the difference in structure, the cam lock cylinder and the gear wheel lock cylinder are not interchangeable. Summary of the invention

[0003] The purpose of the present invention is to provide a conversion device which can convert a cam lock cylinder into a gear lock cylinder for use in order to solve the above-mentioned common problems existing in the existing lock cylinders.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] The lock core converter of claim 1, wherein the lock core comprises a main body and a first limiting portion and a second limiting portion respectively arranged on two sides of the main body, the main body is in the shape of an opening, and an external tooth is arranged on the outer periphery of the main body. The main body is divided into a rotating section and an extending section. The first limiting portion and the second limiting portion are arranged on two side surfaces of the extending section, and the first limiting portion and the second limiting portion respectively extend from corresponding side surfaces of the extending section along the axial direction of the main body in a direction away from the extending section, and the projections of the first limiting portion and the second limiting portion on corresponding side surfaces of the extending section coincide with the corresponding side surfaces, the main body is sleeved on the upper part of the lock shell, and the shape and size of the inner hole of the main body are adapted to the upper part of the lock shell, the rotating section is located at the cam groove, and the cam can push the extending section to make the rotating section rotate into and pass through the cam groove during rotation.

[0006] In the above-mentioned conversion device for converting a cam lock cylinder into a gear lock cylinder, the cam includes a rotating part and a toggle part, the rotating part is rotatably arranged on the lock shell and is concentric with the upper part of the lock shell, the toggle part is arranged on the outer peripheral surface of the rotating part, the rotating part is located in the inner hole of the above-mentioned main body, and the toggle part is located in the opening of the main body.

[0007] In the above-mentioned conversion device for converting a cam lock cylinder into a gear lock cylinder, one end of the shifting portion is fixed to the above-mentioned rotating portion, and the other end passes through the opening of the body.

[0008] In the above-mentioned conversion device for converting a cam lock cylinder into a gear lock cylinder, when the said toggle part pushes the extension section, the side surface of the opening of the said main body corresponding to the side surface on the extension section is face-to-face with the toggle part.

[0009] In the above-mentioned conversion device for converting a cam lock cylinder into a gear lock cylinder, when the cam lock cylinder is installed on the lock body, the outer end faces of the first limiting portion and the second limiting portion respectively lean against the side plates on both sides of the lock body, and the rotating section is limited at the cam groove.

[0010] In the above-mentioned conversion device for converting a cam lock cylinder into a gear lock cylinder, both the rotating section and the extending section are arc-shaped, and the arc length of the rotating section is greater than that of the extending section.

[0011] In the above-mentioned conversion device for converting a cam lock cylinder into a gear lock cylinder, two outwardly protruding limiting columns are provided on the outer end faces of the first limiting portion and the second limiting portion. The limiting columns extend along the axial direction of the body from the corresponding outer end faces, and the distances from the centers of the two limiting columns on the same outer end face to the center of the body are equal.

[0012] In the above-mentioned conversion device for converting a cam lock cylinder into a gear lock cylinder, the projections of the four limiting columns on the side of the extending section coincide in pairs.

[0013] In the above-mentioned conversion device for converting a cam lock cylinder into a gear lock cylinder, limiting grooves for the limiting columns to move when the body rotates are provided on both side plates of the lock body. The limiting grooves are arc-shaped and closed at both ends.

[0014] In the above-mentioned conversion device for converting a cam lock cylinder into a gear lock cylinder, the width of the external teeth is smaller than the width of the body, and one side of the external teeth is flush with one side of the body.

[0015] In the above-mentioned conversion device for converting a cam lock cylinder into a gear lock cylinder, the body, the first limiting portion, the second limiting portion and the limiting columns are of an integral structure.

[0016] Compared with the prior art, the structure of the present invention is simple. When used in cooperation with a cam lock cylinder, it can realize the function of a gear lock cylinder, convert the cam lock cylinder into a gear lock cylinder for use, and greatly improve the versatility of the cam lock cylinder; when the cam drives the converter to rotate, it is in surface contact with the converter, the contact range is large, the force is balanced, wear is prevented, and the service life of the cam is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the present invention;

[0018] Figure 2 is a front view of the present invention;

[0019] Figure 3 is a side view of the present invention.

[0020] In the figure, 1, body; 2, first limiting portion; 3, second limiting portion; 4, external teeth; 5, limiting columns. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] like Figures 1 to 3 As shown, the present invention provides a conversion device for converting a cam lock cylinder into a gear lock cylinder, comprising a main body 1 and a first limiting portion 2 and a second limiting portion 3 respectively arranged on the left and right sides of the main body 1. The main body 1 is in a ring shape with an opening, and a circle of external teeth 4 is arranged on the outer circumference of the main body 1. The width of the external teeth 4 is less than the width of the main body 1 and the right side of the external teeth 4 is flush with the right side of the main body 1. The main body 1 is divided into a rotating section and an extending section. The rotating section and the extending section are both in an arc shape and the arc length of the rotating section is greater than that of the extending section. The first limiting portion 2 and the second limiting portion 3 are respectively arranged on the left and right side surfaces of the extending section. The first limiting portion 2 extends from the left side surface of the extending section along the axial direction of the main body 1 to the left, and the second limiting portion 3 extends from the right side surface of the extending section along the axial direction of the main body 1 to the right. The projections of the first limiting portion 2 and the second limiting portion 3 on the corresponding side surfaces of the extending section coincide with the corresponding side surfaces, so the outer circumference of the second limiting portion 3 has teeth with the same size as the external teeth 4. Two outwardly protruding limiting columns 5 are provided on the outer end faces of the first limiting portion 2 and the second limiting portion 3. The limiting columns 5 extend axially from the corresponding outer end faces along the main body 1. The centers of the two limiting columns 5 located on the same end face are at an equal distance from the center of the main body 1, and the projections of the four limiting columns 5 on the side faces of the extension sections overlap in pairs; the main body 1, the first limiting portion 2, the second limiting portion 3 and the limiting columns 5 are an integrated structure.

[0023] When in use, the lock core converter is installed on the cam lock core, which includes a lock shell and a cam. A cam groove for the cam to rotate is provided on the lock shell, and the outer circumference of the upper cross-section of the lock shell is an open circle. The body 1 is sleeved on the upper part of the lock shell, and the shape and size of the inner hole of the body 1 are adapted to the upper part of the lock shell; when the cam lock core is installed on the lock body, the outer end faces of the first limiting portion 2 and the second limiting portion are respectively against the side plates on both sides of the lock body, limiting the above-mentioned rotating section at the cam groove, and the width of the rotating section is smaller than the width of the cam groove; both side plates of the lock body are provided with limiting grooves for the limiting column 5 to move when rotating with the body 1, and the limiting grooves are It is arc-shaped and closed at both ends, and the limit column 5 is inserted into the corresponding limit groove; the cam includes a rotating part and a toggle part, the rotating part is rotatably arranged on the lock shell and is concentric with the circular upper part of the lock shell, the rotating part is located in the inner hole of the main body 1, one end of the toggle part is fixed on the rotating part, and the other end passes through the opening of the main body 1. When unlocking, the cam is driven to rotate by the key, and the rotation of the cam pushes the extension section through the toggle part to rotate the entire converter, and the rotating section can be rotated into and through the cam groove. When the toggle part pushes the extension section, the side surfaces of the two side surfaces of the opening corresponding to the side surfaces on the extension section are face to face with the toggle part, the toggle part has a large force area and very little wear.

[0024] It should be understood that in the claims and the specification of the present invention, all "comprising..." should be understood in an open sense, that is, it is equivalent in meaning to "at least containing...", rather than in a closed sense, that is, it should not be understood to mean "only containing...".

[0025] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A conversion device for converting a cam lock core into a gear lock core, which is arranged on the cam lock core. The cam lock core includes a lock housing and a cam. A cam groove for the rotation of the cam is provided on the lock housing. The outer periphery of the upper cross-section of the lock housing is a circular opening. It is characterized in that, The lock core converter comprises a body (1) and a first limiting portion (2) and a second limiting portion (3) respectively arranged on both sides of the body (1); the body (1) is in the shape of a ring with an opening, and the ring shape of the body is larger than a semicircle; an outer circumference of the body (1) is provided with external teeth (4); the body (1) is divided into a rotating section and an extending section; the first limiting portion (2) and the second limiting portion (3) are respectively arranged on both side surfaces of the extending section; the first limiting portion (2) and the second limiting portion (3) respectively extend from the corresponding side surface of the extending section along the axial direction of the body (1) in a direction away from the extending section; the projections of the first limiting portion (2) and the second limiting portion (3) on the corresponding side surface of the extending section coincide with the corresponding side surface; the body (1) is sleeved on the upper part of the lock shell; the shape and size of the inner hole of the body (1) are adapted to the upper part of the lock shell; the rotating section is located at the cam groove; during the rotation of the cam, the extending section can be pushed so that the rotating section rotates into and passes through the cam groove.

2. The conversion device for converting a cam lock core into a gear lock core according to claim 1, characterized in that, The cam comprises a rotating part and a toggle part, wherein the rotating part is rotatably arranged on the lock housing and is concentric with the upper part of the lock housing, and the toggle part is arranged on the outer peripheral surface of the rotating part, the rotating part is located in the inner hole of the above-mentioned body (1), and the toggle part is located in the opening of the body (1).

3. A conversion device for converting a cam lock core into a gear lock core according to claim 2, characterized in that, One end of the toggle part is fixed on the rotating part, and the other end passes through the opening of the main body (1).

4. A conversion device for converting a cam lock core into a gear lock core according to claim 2 or 3, characterized in that, When the toggle part pushes the extension section, the side surfaces of the two opening sides of the main body (1) corresponding to the side surfaces located on the extension section are face-to-face with the toggle part.

5. A conversion device for converting a cam lock cylinder into a gear lock cylinder according to claim 2 or 3, characterized in that, The rotating section and the extending section are both in arc shape, and the arc length of the rotating section is greater than that of the extending section.

6. A conversion device for converting a cam lock core into a gear lock core according to claim 1 or 2, characterized in that, Two outwardly protruding limiting columns (5) are provided on the outer end surfaces of the first limiting portion (2) and the second limiting portion (3); the limiting columns (5) extend axially from the corresponding outer end surfaces of the main body (1); and the centers of the two limiting columns (5) located on the same outer end surface are equidistant from the center of the main body (1).

7. A conversion device for converting a cam lock cylinder into a gear lock cylinder according to claim 6, characterized in that, The projections of the four limiting columns (5) on the side surface of the extension section overlap in pairs.

8. A conversion device for converting a cam lock core into a gear lock core according to claim 1 or 2, characterized in that The width of the outer teeth (4) is smaller than the width of the body (1), and one side of the outer teeth (4) is flush with one side of the body (1).

9. A conversion device for converting a cam lock core into a gear lock core according to claim 6, characterized in that, The main body (1), the first limiting portion (2), the second limiting portion (3) and the limiting column (5) are an integrated structure.

Images