Multi-section lock cylinder structure for engineering machinery

Abstract

The utility model relates to a multi-section lock cylinder structure for engineering machinery, which comprises a lock cylinder and a lock case, a key slot is arranged in the lock cylinder, the lock cylinder comprises a section a and a section b, the section a is not provided with a lock plate, the section b is provided with a lock plate, the lock plates are matched with the tooth shape of a key, the secrecy classification of the lock cylinder is reserved, and the lock case is positioned outside the lock cylinder. According to the structure, the lock cylinder is arranged in a segmented mode, a locking plate groove and a locking plate at the forefront section are omitted, the length of the lock cylinder is reduced, then the total length of a corresponding key is reduced, and the problem that the key is prone to being twisted off is solved while locks with different secrecy degrees are unlocked through one key.

Description

Technical Field

[0001] This utility model relates to the field of key lock cylinders, and in particular to a multi-segment lock cylinder structure for engineering machinery. Background Technology

[0002] Currently, mobile truck cranes are typical engineering road vehicles, and the entire vehicle has many locks, such as locks for the crane's two compartment doors, ignition locks, fuel tank locks, electrical cabinet locks, cover locks, toolbox locks, etc. If each lock is equipped with a different key, multiple keys will be generated, resulting in low unlocking efficiency and causing inconvenience to users in management and use. If each lock uses the same lock cylinder, it can be opened with the same key, which will result in poor security and compromise the safety of users' personal property. In addition, national standards have requirements for the interoperability of the driver's cab of vehicles on the road, and different components also need to adopt different levels of security measures. All of these place higher demands on locks.

[0003] Current technology divides the key for construction machinery into two sections: a dedicated section and a universal section. The universal section retains the same teeth pattern and opens ordinary door locks; the dedicated section has different teeth pattern and opens door locks requiring security. This allows one key to open two lock cylinders. However, this type of key matches lock cylinders that are quite deep, and the excessive length of the key can generate significant torque, potentially causing it to break or deform. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art by providing a multi-segment lock cylinder structure for engineering machinery. By segmenting the lock cylinder, eliminating the lock plate slot and lock plate at the front, the length of the lock cylinder is compressed, thereby reducing the total length of the corresponding key. This allows a key with a relatively short total length to not only open locks with different security levels, but also solve the problem of keys easily breaking.

[0005] According to this utility model, a multi-segment lock cylinder structure for engineering machinery includes a lock cylinder and a lock shell. The lock cylinder has a key groove and includes segment a and segment b. Segment a is located at the front end of the lock cylinder, and segment b is located to the right of segment a. Segment a does not have a lock plate installed, regardless of changes in the key tooth shape. Segment b has a lock plate installed, and the lock plate matches the key tooth shape. The lock cylinder also has a lock cylinder mounting structure located in segment a. The lock shell is wrapped around the outside of the lock cylinder and serves a fixing function.

[0006] Preferably, segment a is not provided with a locking slot.

[0007] Preferably, the locking plate is installed in section b through the locking plate slot.

[0008] Preferably, there are multiple locking plates.

[0009] Preferably, the locking plates are arranged at a certain interval.

[0010] Compared with the prior art, the advantages of this utility model are as follows:

[0011] First, by segmenting the lock cylinder and eliminating the frontmost lock plate slot and lock plate, the length of the lock cylinder is compressed, making it easier to upgrade the existing lock cylinder structure. This reduces the total length of the corresponding key, solving the problem that excessively long keys can cause excessive torque and breakage.

[0012] Secondly, the security levels of the lock cylinder are retained, allowing one key to open locks with different security levels, reducing the number of key types for users and improving management and usage efficiency.

[0013] Third, this lock cylinder structure facilitates the standardization of locks among main products, reduces mold changes, lowers production costs, reduces lock installation space, avoids interference with other components, and increases design tolerance. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of a multi-segment lock core structure for engineering machinery proposed in this utility model.

[0015] Figure 2 This is a top view of a multi-segment lock cylinder structure.

[0016] Illustrations: 1. Lock cylinder; 2. Lock case; 3. Key slot; 4. Lock plate; 5. Key; 6. Lock plate slot; 7. Lock cylinder mounting structure. Detailed Implementation

[0017] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0018] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0019] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0023] See Figures 1-2 , Figure 1 This invention provides a front view schematic diagram of a multi-segment lock cylinder structure for engineering machinery according to an embodiment of this application. Figure 2A top view of a multi-segment lock cylinder structure is shown. This lock cylinder structure includes a lock cylinder 1 and a lock housing 2. The lock cylinder 1 has a keyway 3 and comprises segment a and segment b. Segment a is located at the very front of the lock cylinder and does not have a locking plate 4 installed thereon. Segment b has multiple locking plates 4 installed via locking plate slots 6. The lock housing 2 is located outside the lock cylinder 1. The corresponding key is also divided into two segments. When the key is inserted into the bottom of the keyway, the portion of the key located within segment a is called key segment a, and the portion located within segment b is called key segment b. The teeth of key segment b match the locking plate.

[0024] Section A does not have lock plates 4 and lock plate slots 6 installed, and the lock cylinder in this section is unaffected by changes in the key tooth shape. Section B has lock plates 4 and lock plate slots 6 installed. The lock plates 4 are arranged at a certain interval and inserted into the lock plate slots 6 on the lock cylinder 1, matching the tooth shape of the key 5. When the lock is closed, the lock plates 4 protrude to lock, and when the key 5 is inserted into the lock cylinder, all the lock plates 4 can be pressed into the lock plate slots 6. At this time, turning the key can open the lock. Because the lock plates 4 are arranged at a certain interval, usually 2-3mm, it directly causes the outer layer structure of the lock cylinder to move backward and lengthen the entire lock cylinder 1. When the structure of lock plates 4 and lock plate slots 6 is removed in section A, the installation structure of the outer layer of the lock cylinder can be moved forward, thereby reducing the space required for section A and shortening the length of the lock cylinder 1.

[0025] The lock cylinder mounting structure 7 is installed on section a. Since there is no lock plate 4 and lock plate groove 6 on section a, installation space is provided for the lock cylinder mounting structure 7. The lock cylinder mounting structure 7 does not need to avoid the lock plate area and move to the left, thus reducing the overall length and material of the lock cylinder.

[0026] There are many types of locks for construction machinery, and the lengths of the lock cylinders vary. To standardize the lock cylinders, they are classified into single-section and multi-section types. A typical single-section lock cylinder is relatively short and can be fitted with a locking plate that matches the tooth shape of the key's section A. During use, the key is inserted to the bottom of the slot, and the lock is opened by reading the changes in the locking plate on section A of the key. At this time, section B of the key is suspended outside the lock cylinder and is not read.

[0027] The multi-stage lock cylinder consists of stage A and stage B. Stage A has no locking plate 4; the key is inserted to the bottom of the slot, and the lock is opened by reading the changes in the locking plate of stage B. Because this type of multi-stage lock cylinder eliminates the locking plate 4 and locking plate slot 6 on stage A, and installs the lock cylinder mounting structure 7 on stage A, the overall length of the lock cylinder is greatly reduced, so the key is less likely to break or deform.

[0028] This lock cylinder structure, by segmenting the lock cylinder and eliminating the frontmost lock plate slot and lock plate, compresses the length of the lock cylinder, solving the problem that excessively long keys can easily cause excessive torque and breakage. At the same time, it retains the lock cylinder's security level classification, allowing one key to open locks with different security levels, greatly improving management and usage efficiency.

[0029] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0030] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A multi-section lock cylinder structure for engineering machinery, comprising a lock cylinder and a lock shell, characterized in that, The lock cylinder has a key slot and includes section a and section b. Section a is located at the front end of the lock cylinder, and section b is located to the right of section a. Section a does not have a lock plate installed, while section b has a lock plate installed. The lock plate matches the key teeth and retains the security classification of the lock cylinder. The lock cylinder also has a lock cylinder mounting structure located in section a. The lock shell is wrapped around the outside of the lock cylinder and serves to fix it in place.

2. The multi-segment lock cylinder structure according to claim 1, characterized in that, Section a does not have a locking slot.

3. The multi-segment lock cylinder structure according to claim 1, characterized in that, The locking plate is installed in section b through the locking plate slot.

4. The multi-segment lock cylinder structure according to claim 1, characterized in that, There are multiple locking plates.

5. The multi-segment lock cylinder structure according to claim 1, characterized in that, The locking plates are arranged at a certain interval.

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