A detection jig suitable for various lock cores

CN224354086UActive Publication Date: 2026-06-12JIANGXI MINGSHENG LOCK CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI MINGSHENG LOCK CO LTD
Filing Date
2025-08-11
Publication Date
2026-06-12

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  • Figure CN224354086U_ABST
    Figure CN224354086U_ABST
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Abstract

This utility model provides a testing fixture applicable to various lock cylinders, including a fixed base. A lock cylinder support base is fixedly connected to the upper left end of the fixed base, and a first electric push rod is fixedly connected to the upper left end of the fixed base. A support pressure rod is fixedly connected to the telescopic end of the first electric push rod, and a fixed pressure cover is fixedly connected to the lower end of the support pressure rod. A limit strip is fixedly connected to the right end of the fixed pressure cover. The fixed pressure cover and the lock cylinder support base cooperate with each other. A rectangular slider is slidably connected to the upper right end of the fixed base. This design solves the problem that the original device requires different testing fixtures with different corresponding structures when testing different types of lock cylinders, which affects the testing efficiency of the lock cylinders. This utility model has a reasonable structure and good practicality. According to different types of lock cylinders, it can automatically switch between different types of testing fixture keys and then perform automatic adaptation testing, thereby increasing the testing efficiency of lock cylinders.
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Description

Technical Field

[0001] This utility model is a testing fixture applicable to various lock cylinders, belonging to the field of lock cylinder technology. Background Technology

[0002] The lock cylinder is the core component of a lock, responsible for controlling its opening. It employs multiple anti-theft technologies, including various irregularly shaped anti-picking pins and a precision numbered pin structure, providing high security against technical unlocking. The lock cylinder, through its multiple combinations of irregularly shaped pins, can program billions of key combinations, achieving zero cross-keying within a given area. Furthermore, the lock cylinder incorporates a lateral inward-pressing side pin locking device, enhancing its ability to prevent forced twisting.

[0003] In existing technologies, different testing fixtures with corresponding structures are required when testing different types of lock cylinders, which affects the testing efficiency of lock cylinders. There is an urgent need for a testing fixture that can be used for multiple lock cylinders to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a testing fixture applicable to various lock cylinders, so as to solve the problems mentioned in the background art. This utility model has good practicality. According to different types of lock cylinders, it can automatically switch different types of testing fixture keys and then perform automatic adaptation testing, thereby increasing the testing efficiency of lock cylinders.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a testing fixture applicable to various lock cylinders, comprising a fixed base, a lock cylinder support base fixedly connected to the upper left end of the fixed base, a first electric push rod fixedly connected to the upper left end of the fixed base, a support pressure rod fixedly connected to the telescopic end of the first electric push rod, a fixed pressure cover fixedly connected to the lower end of the support pressure rod, and a limit strip fixedly connected to the right end of the fixed pressure cover, wherein the fixed pressure cover and the lock cylinder support base cooperate with each other;

[0006] A rectangular slider is slidably connected to the upper right end of the fixed base. A second electric push rod is fixedly connected to the upper end of the fixed base. The telescopic end of the second electric push rod is fixedly connected to the rectangular slider. A second motor is fixedly connected inside the rectangular slider. A mounting housing is fixedly connected to the output end of the second motor. A fixed support base is fixedly connected to the upper end of the mounting housing. A first motor is fixedly connected inside the fixed support base. A first helical gear is fixedly connected to the output end of the first motor. Three rotating blocks are rotatably connected to the circumferential surface of the mounting housing. A second helical gear is fixedly connected to the left end of each of the three rotating blocks. A detection fixture key is slidably connected to the right end of each of the three rotating blocks.

[0007] Furthermore, a support slide rod is fixedly connected inside the fixed base, and the rectangular slider is slidably connected to the support slide rod.

[0008] Furthermore, four fixing blocks are fixedly connected to the lower end of the fixed base, and a rubber layer is provided on the bottom of the fixing blocks.

[0009] Furthermore, a rubber layer is provided between the fixed pressure cover and the lock cylinder support base, and the first helical gear meshes with the three second helical gears.

[0010] Furthermore, the fixed pressure cover and the lock cylinder support base cooperate with each other, and the limiting strip is made of metal material.

[0011] Furthermore, an oil groove is provided in the sliding groove of the fixed base.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a testing fixture applicable to various lock cylinders. Because this utility model adds a limiting strip, a fixing cover, a supporting pressure rod, a first electric push rod, a mounting shell, a first motor, a second electric push rod, a rectangular slider, a first helical gear, a testing fixture key, a second helical gear, and a rotating block, our design improvements and actual use have shown that this device has a reasonable structure and good practicality. According to different types of lock cylinders, it can automatically switch between different types of testing fixture keys and then perform automatic adaptation testing, thereby increasing the testing efficiency of lock cylinders. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a first-view perspective three-dimensional schematic diagram of the overall structure of a testing fixture applicable to various lock cylinders according to this utility model;

[0015] Figure 2 This is a second-view perspective three-dimensional schematic diagram of the overall structure of a testing fixture applicable to various lock cylinders according to this utility model;

[0016] Figure 3 This is a partial cross-sectional structural diagram of a testing fixture applicable to various lock cylinders according to the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the second helical gear in a testing fixture applicable to various lock cylinders according to this utility model;

[0018] Figure 5 This is a schematic diagram of the key structure of a testing fixture applicable to various lock cylinders according to this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the fixed pressure cover in a testing fixture applicable to various lock cylinders according to this utility model;

[0020] Figure 7 This is a cross-sectional schematic diagram of the rectangular slider in a testing fixture applicable to various lock cylinders according to this utility model.

[0021] In the diagram: 1-Fixed base, 2-Fixed connecting block, 3-First helical gear, 4-Supporting slide bar, 5-Rectangular slider, 6-Detection fixture key, 7-Installation housing, 8-First motor, 9-Fixed support seat, 10-Limiting clip, 11-Fixed pressure cover, 12-Lock cylinder support base, 13-Supporting pressure rod, 14-First electric push rod, 15-Second electric push rod, 16-Second helical gear, 17-Rotating block, 18-Second motor. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1-7 This utility model provides a technical solution: a testing fixture applicable to various lock cylinders, including a fixed base 1, a lock cylinder support base 12 fixedly connected to the upper left end of the fixed base 1, a first electric push rod 14 fixedly connected to the upper left end of the fixed base 1, a support pressure rod 13 fixedly connected to the telescopic end of the first electric push rod 14, a fixed pressure cover 11 fixedly connected to the lower end of the support pressure rod 13, a limit strip 10 fixedly connected to the right end of the fixed pressure cover 11, the fixed pressure cover 11 and the lock cylinder support base 12 cooperating with each other, a rectangular slider 5 slidably connected to the upper right end of the fixed base 1, and a second electric push rod 15 fixedly connected to the upper end of the fixed base 1, the telescopic end of the second electric push rod 15 being fixedly connected to the rectangular slider 5. A second motor 18 is fixedly connected inside a rectangular slider 5. The output end of the second motor 18 is fixedly connected to a mounting housing 7. A fixed support base 9 is fixedly connected to the upper end of the mounting housing 7. A first motor 8 is fixedly connected inside the fixed support base 9. A first helical gear 3 is fixedly connected to the output end of the first motor 8. Three rotating blocks 17 are rotatably connected to the circumferential surface of the mounting housing 7. A second helical gear 16 is fixedly connected to the left end of each of the three rotating blocks 17. A detection fixture key 6 is slidably connected to the right end of each of the three rotating blocks 17. This design solves the problem that the original device requires different detection fixtures with different corresponding structures when testing different types of lock cylinders, which affects the detection efficiency of the lock cylinder.

[0024] In the first embodiment of this utility model: a support slide rod 4 is fixedly connected inside the fixed base 1, and a rectangular slider 5 is slidably connected to the support slide rod 4. The support slide rod 4 installed inside the fixed base 1 can support the rectangular slider 5 to slide stably on the fixed base 1, so that the detection fixture key 6 can slide into the lock cylinder and prevent displacement. Four fixed connecting blocks 2 are fixedly connected to the lower end of the fixed base 1. The bottom of the fixed connecting blocks 2 is provided with a rubber layer. The fixed connecting blocks 2 installed at the bottom of the fixed base 1 can be used to install the fixed base 1 on the workbench by screws, thereby increasing the stability of the fixed base 1. The rubber layer installed at the bottom of the fixed connecting blocks 2 can protect the bottom of the fixed connecting blocks 2 and reduce the wear of the fixed base 1 caused by the workbench. A rubber layer is provided between the fixed cover 11 and the lock cylinder support base 12. The first helical gear 3 meshes with three second helical gears 16. The rubber layer between the fixed cover 11 and the lock cylinder support base 12 increases the stability of the lock cylinder within the fixed cover 11 and the lock cylinder support base 12, preventing slippage. The fixed cover 11 and the lock cylinder support base 12 cooperate with each other. The limiting strip 10 is made of metal. The fixed cover 11 presses down on the lock cylinder, increasing the stability of the lock cylinder between the fixed cover 11 and the lock cylinder support base 12. The limiting strip 10, made of metal, has the hardness to press the lock cylinder, fixing it to the surface of the fixed base 1. An oil groove is provided in the slide groove of the fixed base 1. By introducing lubricating oil into the slide groove of the fixed base 1, the friction between the rectangular slider 5 and the fixed base 1 can be reduced.

[0025] As a second embodiment of this utility model: First, the lock cylinder is placed on the lock cylinder support base 12, and the tail of the lock cylinder is pressed against the lock cylinder support base 12. The first electric push rod 14 drives the fixed pressure cover 11 to move downward to press the lock cylinder. At the same time, the limiting strip 10 limits the lock cylinder. According to the type of test, the second motor 18 can be controlled to drive the test fixture key 6 to rotate so that it can align with the lock cylinder. After the second electric push rod 15 pulls the test fixture key 6 into the lock cylinder, the first motor 8 drives the test fixture key 6 to rotate through the first helical gear 3 so that it drives the lock cylinder to rotate. When the lock cylinder is opened, it means that the test is qualified. When it cannot be opened, it means that the test is unqualified.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A testing fixture applicable to various lock cylinders, comprising a fixed base (1), characterized in that: The upper left end of the fixed base (1) is fixedly connected to the lock cylinder support base (12), the upper left end of the fixed base (1) is fixedly connected to the first electric push rod (14), the telescopic end of the first electric push rod (14) is fixedly connected to the support pressure rod (13), the lower end of the support pressure rod (13) is fixedly connected to the fixed cover (11), the right end of the fixed cover (11) is fixedly connected to the limit strip (10), and the fixed cover (11) and the lock cylinder support base (12) cooperate with each other. A rectangular slider (5) is slidably connected to the upper right end of the fixed base (1). A second electric push rod (15) is fixedly connected to the upper end of the fixed base (1). The telescopic end of the second electric push rod (15) is fixedly connected to the rectangular slider (5). A second motor (18) is fixedly connected inside the rectangular slider (5). An installation housing (7) is fixedly connected to the output end of the second motor (18). A fixed support base (9) is fixedly connected to the upper end of the installation housing (7). A first motor (8) is fixedly connected inside the fixed support base (9). A first helical gear (3) is fixedly connected to the output end of the first motor (8). Three rotating blocks (17) are rotatably connected to the circumferential surface of the installation housing (7). A second helical gear (16) is fixedly connected to the left end of each of the three rotating blocks (17). A detection fixture key (6) is slidably connected to the right end of each of the three rotating blocks (17).

2. The testing fixture applicable to various lock cylinders according to claim 1, characterized in that: The fixed base (1) is fixedly connected to a support slide rod (4), and the rectangular slider (5) is slidably connected to the support slide rod (4).

3. The testing fixture applicable to various lock cylinders according to claim 1, characterized in that: The lower end of the fixed base (1) is fixedly connected to four fixed connecting blocks (2), and the bottom of the fixed connecting blocks (2) is provided with a rubber layer.

4. A testing fixture applicable to various lock cylinders according to claim 1, characterized in that: A rubber layer is provided between the fixed pressure cover (11) and the lock cylinder support base (12), and the first helical gear (3) meshes with the three second helical gears (16).

5. A testing fixture applicable to various lock cylinders according to claim 1, characterized in that: The fixed pressure cover (11) cooperates with the lock cylinder support base (12), and the limiting strip (10) is made of metal material.

6. A testing fixture applicable to various lock cylinders according to claim 1, characterized in that: An oil groove is provided in the sliding groove of the fixed base (1).