Lock, box body assembly and display device

Abstract

The utility model discloses a lockset, a box body assembly and a display device. The lockset comprises a lock catch and a lock body, the lock catch is arranged on the carrier; the lock body comprises a lock cylinder, a rotating arm and a spring bolt, the lock cylinder is rotatably arranged on an object to be fixed, the rotating arm is connected with the lock cylinder, the spring bolt is arranged on the rotating arm, and the lock cylinder is used for driving the rotating arm to rotate so as to drive the spring bolt to be switched between a first operation position and a second operation position in the vertical direction; when the spring bolt is switched to the first operation position, the spring bolt is matched with the lock catch to achieve locking of the lock, and when the spring bolt is located at the second operation position, the spring bolt is separated from the lock catch to achieve unlocking of the lock. The lock catch of the lock is arranged on the carrier, the lock cylinder of the lock body is rotatably arranged on the object to be fixed, the rotating arm is connected with the lock cylinder, and the spring bolt is arranged on the rotating arm, so that the movement space of the spring bolt and the rotating arm is concentrated in the internal area between the carrier and the object to be fixed and is not exposed outside the carrier and the object to be fixed; therefore, a hidden lock structure is formed.

Description

Technical Field

[0001] This utility model relates to the field of smart street light technology, specifically to a lock, a housing assembly, and a display device. Background Technology

[0002] With the deepening of smart city construction, smart streetlights, as the core carrier of the urban Internet of Things, integrate multiple functions such as lighting control, environmental monitoring, and information interaction. Among them, the light pole screen, as a key visual information terminal, plays an important role in scenarios such as traffic dynamic guidance, government information dissemination, and commercial advertising.

[0003] However, existing light pole screens generally use a latch-type locking structure. This type of lock is usually installed directly on the external surface of the light pole screen, which not only visually disrupts the overall streamlined design aesthetics and reduces the harmony with the urban landscape, but also, due to long-term exposure to the outdoor environment, it is susceptible to rain erosion, dust accumulation, and human-caused damage, leading to frequent malfunctions such as rust and jamming of the lock components. This increases maintenance costs and poses safety hazards. Furthermore, the exposed latch structure can be accidentally opened by external impacts, affecting the safety and stability of the electronic equipment inside the light pole screen, making it difficult to meet the dual requirements of smart city construction for equipment reliability and aesthetics. Utility Model Content

[0004] To overcome at least one of the aforementioned drawbacks, this utility model provides a lock, a housing assembly, and a display device. The objective of this utility model can be achieved by employing the following technical solution:

[0005] A first aspect of this application provides a lock, comprising:

[0006] The latch and lock body;

[0007] The latch is mounted on the carrier;

[0008] The lock body includes a lock cylinder, a rotating arm, and a bolt. The lock cylinder is rotatably mounted on the object to be fixed. The rotating arm is connected to the lock cylinder. The bolt is mounted on the rotating arm. The lock cylinder is used to drive the rotating arm to rotate, thereby causing the bolt to move linearly between a first operating position and a second operating position.

[0009] Specifically, when the bolt is switched to the first operating position, the bolt and the latch cooperate to lock the lock; when the bolt is in the second operating position, the bolt and the latch separate to unlock the lock.

[0010] In one possible implementation, during the process of the rotating arm driving the locking tongue to switch positions, the rotating arm abuts against the locking tongue.

[0011] In one possible implementation, the latch and the carrier cooperate to form a limiting cavity for the insertion of the bolt. When the lock cylinder is rotated in a first direction, the lock cylinder drives the bolt to move closer to the latch via the rotating arm and toward the first operating position, so that the end of the bolt gradually inserts into the limiting cavity. When the lock cylinder is rotated in a second direction, the lock cylinder drives the bolt away from the latch via the rotating arm and toward the second operating position, so that the end of the bolt exits from the limiting cavity.

[0012] In one possible implementation, the end of the latch is provided with an insertion plate, and the position where the insertion plate contacts the latch has a chamfered structure.

[0013] In one possible implementation, the lock body further includes:

[0014] Lock case;

[0015] The latch is disposed inside the lock housing. A limiting strip hole extending along the moving direction of the latch is provided on the side wall of the lock housing opposite to the latch. A limiting post is provided on the latch that is adapted to the limiting strip hole. The limiting post can move within the limiting strip hole to guide and limit the movement of the latch.

[0016] In one possible implementation, the lock housing includes:

[0017] Interconnected outer and inner shells;

[0018] Mounting holes are provided at corresponding positions on both the outer shell and the inner shell, and the mounting holes are used for the lock cylinder to pass through.

[0019] The outer peripheral surface of the lock cylinder is provided with a limiting groove extending in the circumferential direction;

[0020] A limiting plate is provided between the outer shell and the inner shell, and a limiting hole adapted to the limiting groove is provided on the limiting plate at a position corresponding to the lock cylinder;

[0021] During the rotation of the lock cylinder, the limiting hole and the limiting groove cooperate to limit the lock cylinder in the circumferential and axial directions.

[0022] In one possible implementation, the limiting plate includes:

[0023] Upper limit position board and lower limit position board;

[0024] Both the upper limit subplate and the lower limit subplate are provided with a half-hole structure, and the two half-hole structures are spliced ​​together to form the limiting hole that matches the limiting groove.

[0025] A second aspect of this application provides a housing assembly, comprising:

[0026] Carrier and object to be fixed;

[0027] One side of the object to be fixed is rotatably connected to the carrier via a rotating connector, and the other side is detachably connected to the carrier via any of the locks in the first aspect.

[0028] When the lock is in the locked state, the latch and the buckle cooperate to restrict the relative movement of the object to be fixed and the carrier. When the lock is in the unlocked state, the object to be fixed can be opened or closed relative to the carrier.

[0029] In one possible implementation, the lock body is disposed on the side of the object to be fixed facing the carrier, and an operating hole is provided on the object to be fixed at a position corresponding to the lock cylinder; the latch is disposed on the carrier at a position corresponding to the lock body, and the latch has a limiting cavity for the bolt to be inserted; the operating hole is used to accommodate an operating tool to drive the lock cylinder, the lock cylinder is used to drive the rotating arm to rotate, and the bolt is used to complete the locking and unlocking actions within the limiting cavity.

[0030] A third aspect of this application provides a display device, comprising:

[0031] Any one of the enclosure components in the second aspect;

[0032] The display module is disposed within the housing assembly.

[0033] The beneficial technical effects of this utility model are as follows: According to this disclosure, the lock has its latch mounted on a carrier, the lock cylinder rotatably mounted on the object to be fixed, a rotating arm connected to the lock cylinder, and a bolt mounted on the rotating arm. This concentrates the movement space of the bolt and rotating arm within the internal area between the carrier and the object to be fixed, reducing the exposed parts of the lock. When the lock is installed, the rotating arm and bolt, driven by the lock cylinder, rotate and extend without being exposed to the outside of the carrier and the object to be fixed, forming a concealed lock structure. Simultaneously, the rotating arm, driven by the lock cylinder, rotates, causing the bolt to move linearly between a first and second operating position, achieving locking and unlocking. This relatively concealed and more stable design effectively prevents accidental opening due to external impacts. When applied to light pole screens, this lock better protects the internal electronic equipment, meeting the dual requirements of smart city construction for equipment reliability and aesthetics. Attached Figure Description

[0034] The following are given by way of example and without limitation in the accompanying drawings:

[0035] Figure 1 An exploded view of the lock body structure is shown;

[0036] Figure 2 A schematic diagram of the latch structure from one perspective is shown;

[0037] Figure 3 This shows a structural schematic diagram of the latch from another perspective;

[0038] Figure 4 A schematic diagram of the lock case structure is shown;

[0039] Figure 5 An exploded view of the lock case structure is shown;

[0040] Figure 6 A structural cross-sectional view of the lock body is shown;

[0041] Figure 7 Another structural cross-sectional view of the lock body is shown;

[0042] Figure 8 A schematic diagram of the rotating arm is shown;

[0043] Figure 9 This diagram illustrates a structure of the lock when it is in operation.

[0044] Figure 10 This diagram illustrates another structural configuration of the lock when it is in operation.

[0045] Figure 11 This diagram illustrates another structural configuration of the lock when it is in operation.

[0046] Figure 12 A schematic diagram of the latch structure is shown;

[0047] Figure 13 A structural schematic diagram of the housing assembly from one perspective is shown;

[0048] Figure 14 It shows Figure 13 A magnified view of a section at point A in the middle;

[0049] Figure 15 This shows a structural schematic diagram of the housing assembly from another perspective;

[0050] Figure 16 It shows Figure 15 A magnified view of a section at point B in the middle;

[0051] Figure 17 A schematic diagram of the lock body in the assembled state is shown.

[0052] In the picture:

[0053] 1. Lock;

[0054] 2. Lock body; 21. Lock cylinder; 211. Limiting groove; 22. Rotary arm; 23. Lock tongue; 231. Limiting post; 232. Insert plate; 24. Lock shell; 241. Outer shell; 242. Inner shell; 243. Limiting plate; 2431. Limiting hole; 244. Limiting strip hole;

[0055] 3. Carrier;

[0056] 4. Object to be fixed; 41. Operating hole;

[0057] 5. Rotary connector. Detailed Implementation

[0058] In the following detailed disclosure, these embodiments are fully described with reference to the accompanying drawings. In order to enable those skilled in the art to understand and clarify the technical solution of this utility model more clearly, the embodiments described below are not limited thereto. The present utility model will be further described in detail below with reference to the embodiments and the accompanying drawings.

[0059] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0061] The first aspect of this application, see [link to application]. Figures 1 to 12 As shown, a lock is provided, including a latch 1 and a lock body 2; the latch 1 is mounted on a carrier 3; the lock body 2 includes a lock cylinder 21, a rotating arm 22, and a bolt 23. The lock cylinder 21 is rotatably mounted on the object to be fixed 4. The rotating arm 22 is connected to the lock cylinder 21, and the bolt 23 is mounted on the rotating arm 22. The lock cylinder 21 drives the rotating arm 22 to rotate, thereby causing the bolt 23 to move linearly between a first operating position and a second operating position. When the bolt 23 is switched to the first operating position, the bolt 23 cooperates with the latch 1 to lock the lock. When the bolt 23 is in the second operating position, the bolt 23 separates from the latch 1 to unlock the lock.

[0062] The lock provided in this embodiment features a latch 1 mounted on a carrier 3, a lock cylinder 21 rotatably mounted on the object to be fixed 4, a rotating arm 22 connected to the lock cylinder 21, and a bolt 23 mounted on the rotating arm 22. This concentrates the movement space of the bolt 23 and the rotating arm 22 within the internal area between the carrier 3 and the object to be fixed 4, reducing the exposed portion of the lock. When the lock is installed, the rotating arm 22 and the bolt 23, driven by the lock cylinder 21, rotate and extend without being exposed to the outside of the carrier 3 and the object to be fixed 4, thus forming a concealed lock structure.

[0063] The lock provided in this embodiment can be applied to fields such as smart streetlights, specifically to light pole screens. In actual installation, the outer frame of the light pole screen serves as the carrier 3 in this embodiment, providing a stable installation base for the latch 1. The openable inspection door or maintenance cover of the light pole screen serves as the object to be fixed 4 in this embodiment. Through the linkage of the lock cylinder 21, the rotating arm 22, and the locking tongue 23, the locking and unlocking between the inspection door or maintenance cover and the outer frame is achieved. This facilitates regular maintenance and repair of the electronic equipment inside the light pole screen by staff, and also ensures the safety of internal circuits, display modules, and other precision components during daily use, preventing accidental opening of the inspection door or maintenance cover due to external forces, and effectively resisting damage to the equipment from harsh outdoor environments.

[0064] The lock provided in this embodiment drives the rotating arm 22 to rotate through the lock cylinder 21, which in turn drives the bolt 23 to move linearly between the first and second operating positions, thereby achieving locking and unlocking of the lock. It is relatively concealed and more stable, and can effectively prevent accidental opening caused by external force collisions. When the lock is applied to the light pole screen, it can better protect the electronic equipment inside the light pole screen and meet the dual requirements of smart city construction for equipment reliability and aesthetics.

[0065] The latch 1, serving as the fixed end of the lock, provides an interface for engaging with the bolt 23 to achieve a locking effect. The latch 1 is mounted on a carrier 3, which can be any stable structure requiring connection to the object 4 to be fixed, such as the outer frame of a smart street light pole screen. The latch 1 is securely fixed to the carrier 3 via welding, screws, or other suitable installation methods, providing a stable foundation for the entire lock system.

[0066] The lock body 2 is a key component for realizing the core functions of the lock, consisting of a lock cylinder 21, a rotating arm 22, and a bolt 23. The lock cylinder 21 is rotatably mounted on the object to be fixed 4, such as an openable access door or maintenance cover of a light pole screen. This mounting method allows the lock cylinder 21 to rotate freely within a certain angle range, providing power for the movement of subsequent components. For example, the lock cylinder 21 can be equipped with a bushing or bearing to reduce frictional resistance during rotation and ensure smooth rotation. One end of the rotating arm 22 is connected to the lock cylinder 21. The connection method can be a key connection, pin connection, or other mechanical connection methods, or it can be integrally formed, ensuring that the rotating arm 22 can move synchronously with the rotation of the lock cylinder 21. The rotating arm 22 plays a role in force transmission and conversion in the entire lock system, converting the rotational motion of the lock cylinder 21 into the linear motion of the bolt 23. The bolt 23 is mounted on the rotating arm 22 and can be slidably connected, allowing the bolt 23 to move linearly under the drive of the rotating arm 22. The shape and size of the latch 23 are adapted to the latch 1 to ensure precise engagement with the latch 1 and to achieve reliable locking and unlocking functions.

[0067] Understandably, depending on the application requirements, the latch 23 can move vertically or horizontally between the first and second operating positions. In this embodiment, taking the vertically moving latch 23 as an example, the specific working process is as follows: When locking the lock, an external force (such as a key) drives the lock cylinder 21 to rotate. Since the rotating arm 22 is connected to the lock cylinder 21, the rotation of the lock cylinder 21 will cause the rotating arm 22 to rotate around its connection point with the lock cylinder 21. As the rotating arm 22 rotates, it causes the latch 23 mounted on it to move vertically downwards. When the latch 23 reaches the first operating position, it aligns with the latch 1 on the carrier 3 and inserts into the groove or hole of the latch 1. Through the mechanical cooperation between the two, the carrier 3 and the object to be fixed 4 are locked. At this time, the object to be fixed 4 is firmly fixed on the carrier 3 and cannot be moved or opened arbitrarily. When unlocking the lock, an external force is used again to drive the lock cylinder 21 to rotate in the opposite direction. Driven by the lock cylinder 21, the rotating arm 22 rotates synchronously in the opposite direction, causing the latch 23 to move upwards vertically. When the locking tongue 23 is completely disengaged from the latch 1 and reaches the second operating position, the constraint between the carrier 3 and the object to be fixed 4 is completely released, and the object to be fixed 4 returns to a free opening and closing state, thus completing the unlocking operation.

[0068] In one possible implementation, see Figures 9 to 11 As shown, during the process of the rotating arm 22 driving the locking tongue 23 to switch positions, the rotating arm 22 and the locking tongue 23 abut against each other.

[0069] The latch 23 has a box-shaped structure with a rectangular frame to accommodate the rotating arm 22. The lock cylinder 21 and the latch 23 are eccentrically assembled, with the axis of the lock cylinder 21 offset from the geometric center of the latch 23. When the lock cylinder 21 is driven to rotate by an external force such as a key, the connected rotating arm 22 moves in a circle around the axis of the lock cylinder 21. Within a certain range of the rotating arm 22's movement trajectory, its outer contour will make mechanical contact and exert force with the inner wall of the box-shaped structure of the latch 23. This eccentric drive mechanism enables the latch 23 to achieve precise position switching under the action of external force, thereby realizing the locking and unlocking actions of the lock.

[0070] Understandably, see Figure 9 As shown, when the lock is in the locked state, the latch 23 is in the first operating position. At this time, the rectangular frame inside the box-shaped structure of the latch 23 fits tightly with the rotating arm 22, and the end of the rotating arm 22 abuts against the bottom surface of the inner wall of the latch 23. Under the action of the vertical component force applied by the rotating arm 22, the latch 23 is fully inserted into the groove of the latch 1, forming a stable mechanical engagement. The mating surfaces of the latch 23 and the latch 1 fit tightly, effectively restricting the movement of the object to be fixed 4 (such as the access door of a light pole screen), ensuring that the equipment (such as the light pole screen) is in a safe and closed state. Figure 10 This demonstrates the intermediate state of the unlocking process. When an external force (such as a key) drives the eccentric lock cylinder 21 to rotate, the rotating arm 22 begins to move in a circular motion around the eccentric connection point. As the rotating arm 22 rotates, it disengages from the bottom surface of the inner wall of the latch 23, entering a brief non-contact state. At this time, the engagement between the latch 23 and the latch 1 gradually loosens, but is not yet completely separated; the lock remains locked under the weight of the latch 23. Figure 11 In the unlocked state shown, the lock cylinder 21 continues to rotate until the end of the rotating arm 22 abuts against the top surface of the inner wall of the bolt 23, pushing the bolt 23 to the second operating position. At this time, the bolt 23 completely disengages from the groove of the latch 1 under the action of the vertical component force, and is completely separated from the latch 1. Since the bolt 23 no longer constrains the carrier 3 and the object to be fixed 4, the inspection door and the object to be fixed 4 can be opened and closed freely, facilitating equipment maintenance by the staff.

[0071] In one possible implementation, see Figure 2 , Figure 3 , Figure 13 and Figure 14 As shown, the latch 1 and the carrier 3 cooperate to form a limiting cavity for the insertion of the latch 23. When the lock cylinder 21 is rotated in the first direction, the lock cylinder 21 drives the latch 23 to approach the latch 1 through the rotating arm 22 and move towards the first operating position so that the end of the latch 23 is gradually inserted into the limiting cavity. When the lock cylinder 21 is rotated in the second direction, the lock cylinder 21 drives the latch 23 away from the latch 1 through the rotating arm 22 and move towards the second operating position so that the end of the latch 23 is withdrawn from the limiting cavity.

[0072] Among them, see Figure 2 As shown, the end of the locking tongue 23 is provided with an insertion plate 232. The width and thickness of the insertion plate 232 are adapted to the limiting cavity formed by the latch 1 and the carrier 3, so as to ensure that it can fit tightly against the cavity wall after insertion and enhance the pull-out resistance when locking.

[0073] Among them, see Figure 3 As shown, the insertion plate 232 has a chamfered structure at the contact point with the latch 1, allowing it to align more smoothly and slide into the limiting cavity formed by the latch 1 and the carrier 3. This reduces resistance during the insertion of the bolt 23, prevents jamming due to angular deviation, and effectively reduces wear during insertion, extending the lock's lifespan. Simultaneously, during unlocking, when the bolt 23 moves upwards and disengages from the limiting cavity, the chamfered structure also prevents a hard collision between the insertion plate 232 and the edge of the limiting cavity, ensuring the smoothness of the bolt 23's exit action and improving the smoothness and reliability of the lock operation.

[0074] Among them, see Figure 13 and Figure 14 As shown, the limiting cavity has an open top and two open sides. When the locking tongue 23 moves downward under the action of the rotating arm 22, the open space at the top allows the locking tongue 23 to be smoothly inserted into the limiting cavity without any obstruction. The open sides of the limiting cavity allow the locking tongue 23 to be finely adjusted during insertion, even if there is a slight angular deviation, to ensure precise positioning.

[0075] In the above embodiments, see Figures 9 to 11 As shown, from the perspective of the carrier 3 facing the object 4 to be fixed, the first direction is clockwise and the second direction is counterclockwise. When it is necessary to unlock the lock, the lock cylinder 21 is rotated in the first direction, i.e., clockwise. The clockwise rotation of the lock cylinder 21 will drive the rotating arm 22 to rotate as well. During the rotation of the rotating arm 22, through the structural relationship such as abutment with the bolt 23, an upward force is applied to the bolt 23, causing the bolt 23 to move upward. The end of the bolt 23 will then exit from the limiting cavity and reach the second operating position. At this time, the constraint between the carrier 3 and the object 4 to be fixed is released, and the object 4 to be fixed can be opened, closed or moved freely, completing the unlocking action. When it is necessary to lock the lock, the lock cylinder 21 is rotated in the second direction, i.e., counterclockwise. Because the lock cylinder 21 is connected to the rotating arm 22, the clockwise rotation of the lock cylinder 21 will drive the rotating arm 22 to rotate as well. During the rotation of the rotating arm 22, a downward force is applied to the locking tongue 23 through structural relationships such as contact with it, causing the locking tongue 23 to move downward. In this way, the end of the locking tongue 23 can gradually insert into the limiting cavity formed by the latch 1 and the carrier 3, reaching the first operating position, realizing the locking between the carrier 3 (such as the outer frame of the light pole screen) and the object to be fixed 4 (such as the light pole screen maintenance door), and restricting the movement of the object to be fixed 4.

[0076] It is understandable that the preceding descriptions are all based on one scenario: the limiting cavity formed by the latch 1 and the carrier 3 is located below the bolt 23, requiring the bolt 23 to move downwards to insert into the limiting cavity and complete the locking. If the technical solution is adjusted so that the limiting cavity is above the bolt 23, then the bolt 23 needs to move upwards to insert into the limiting cavity to achieve locking. In this case, the operation method is reversed: originally, clockwise rotation of the lock cylinder 21 was used to lock, but now it is necessary to rotate the lock cylinder 21 counterclockwise to drive the rotating arm 22, thereby driving the bolt 23 to move upwards to insert into the limiting cavity; originally, counterclockwise rotation of the lock cylinder 21 was used to unlock, but now it is necessary to rotate the lock cylinder 21 clockwise to make the bolt 23 move downwards to disengage from the limiting cavity. The principle is similar, only the operation method is reversed due to the structural change, and will not be explained in detail here.

[0077] In one possible implementation, see Figures 1 to 4 As shown, the lock body 2 also includes a lock shell 24; the lock tongue 23 is disposed inside the lock shell 24, and a limiting strip hole 244 extending along the moving direction of the lock tongue 23 is provided on the side wall of the lock shell 24 opposite to the lock tongue 23. The lock tongue 23 is provided with a limiting post 231 that is adapted to the limiting strip hole 244. The limiting post 231 can move within the limiting strip hole 244 to guide and limit the movement of the lock tongue 23.

[0078] The lock housing 24 is also a box-shaped structure, and its internal space provides a place for components such as the bolt 23 and the rotating arm 22, forming a relatively independent movement environment. On the one hand, it protects the internal parts from external environmental interference, such as dust and rain, and extends the service life of the lock; on the other hand, it makes the entire lock body 2 structure compact, which is convenient for installation and maintenance.

[0079] Specifically, a limiting slot 244 is provided on the side wall of the lock housing 24 opposite to the bolt 23, extending along the moving direction of the bolt 23. The limiting slot 244 is designed to match the movement trajectory of the bolt 23, and its length and width are adapted to the movement stroke and dimensions of the bolt 23, ensuring that the bolt 23 moves linearly within the range defined by the slot. For example, when the bolt 23 moves up and down vertically, the limiting slot 244 also extends vertically, providing a clear path guide for the movement of the bolt 23.

[0080] The latch 23 is provided with a limiting post 231 that matches the limiting slot 244. The shape and size of the limiting post 231 are matched with the limiting slot 244, and the two are like a slide rail and a slider. The limiting post 231 can slide freely within the limiting slot 244. The limiting post 231 can be cylindrical, with a diameter slightly smaller than the width of the limiting slot 244, which can ensure smooth movement and prevent the latch 23 from shaking or deviating during movement.

[0081] Understandably, when multiple limit pins 231 are provided, multiple discontinuous limit strip holes 244 are provided on the lock housing 24, with each discontinuous limit strip hole 244 corresponding to a limit pin 231. In this case, the two ends of each limit strip hole 244 restrict the limit pin 231, thereby limiting the movement range of the bolt 23. When the bolt 23 moves to its extreme position, i.e., the first operating position (locked state) or the second operating position (unlocked state), the limit pin 231 will abut against the end of the limit strip hole 244, preventing the bolt 23 from moving further. This prevents the bolt 23 from being damaged or malfunctioning due to excessive movement, ensuring that the bolt 23 completes locking and unlocking actions within a safe travel range.

[0082] In one possible implementation, see Figures 5 to 8 As shown, the lock housing 24 includes an outer shell 241 and an inner shell 242 connected to each other; mounting holes are provided at corresponding positions on the outer shell 241 and the inner shell 242 for the lock cylinder 21 to pass through; a limiting groove 211 extending circumferentially is provided on the outer peripheral surface of the lock cylinder 21; a limiting plate 243 is provided between the outer shell 241 and the inner shell 242, and a limiting hole 2431 adapted to the limiting groove 211 is provided on the limiting plate 243 at a position corresponding to the lock cylinder 21; during the rotation of the lock cylinder 21, the limiting hole 2431 cooperates with the limiting groove 211 to limit the lock cylinder 21 in the circumferential and axial directions.

[0083] The outer shell 241 can be a flat or U-shaped structure. When the outer shell 241 is flat, it provides a flat mounting surface for the lock, allowing for easy installation onto the object 4 via screws, welding, or other methods. When the outer shell 241 is U-shaped, it fits more tightly with the inner shell 242, enabling the internal components to be limited and fixed from multiple directions. (See also...) Figure 17 As shown, the outer shell 241 is installed on the object 4 to be fixed by means of embedding or other methods.

[0084] The inner shell 242 can be a box-shaped structure. The box-shaped inner shell 242 has ample internal space to accommodate moving parts such as the locking tongue 23 and the rotating arm 22, providing them with sufficient space for movement and also protecting these parts.

[0085] Both the outer shell 241 and the inner shell 242 have mounting holes at corresponding positions. The diameter of these mounting holes is designed to allow the lock cylinder 21 to pass through, ensuring that the lock cylinder 21 can pass smoothly and be installed inside the lock shell 24 without creating excessive gaps, thus ensuring the stability and coaxiality of the lock cylinder 21 after installation. In practical applications, for ease of operation, the end of the lock cylinder 21 furthest from the rotating arm 22 extends out of the outer shell 241.

[0086] The outer peripheral surface of the lock cylinder 21 is provided with a limiting groove 211 extending in the circumferential direction. The limiting groove 211 has an annular structure and is distributed around the circumference of the lock cylinder 21. The limiting groove 211 is used to cooperate with the limiting plate 243 to limit the movement range and direction of the lock cylinder 21.

[0087] The limiting plate 243 is disposed between the outer shell 241 and the inner shell 242, and the outer shell 241, the inner shell 242 and the limiting plate 243 can be connected by bolts. A limiting hole 2431, which matches the limiting groove 211, is provided on the limiting plate 243 at a position corresponding to the lock cylinder 21. The diameter of the limiting hole 2431 is smaller than the diameter of the mounting hole, so that the edge of the limiting hole 2431 is embedded in the limiting groove 211, restricting the rotation of the lock cylinder 21 circumferentially and preventing the lock cylinder 21 from wobbling radially. At the same time, the limiting plate 243 restricts the lock cylinder 21 axially, preventing the lock cylinder 21 from shifting or displacing axially during rotation, thus achieving precise positioning of the lock cylinder 21 in both the circumferential and axial dimensions.

[0088] In one possible implementation, see Figure 5 As shown, the limiting plate 243 includes an upper limiting sub-plate and a lower limiting sub-plate; both the upper limiting sub-plate and the lower limiting sub-plate are provided with a half-hole structure, and the two half-hole structures are spliced ​​together to form a limiting hole 2431 that is compatible with the limiting groove 211.

[0089] Understandably, during assembly, the lock cylinder 21 is first passed through the mounting holes on the outer shell 241 and inner shell 242, and then the upper and lower limit plates are installed from the upper and lower sides of the lock cylinder 21, respectively. Due to the semi-hole structure design, when the upper and lower limit plates are joined together, the two semi-hole structures can be perfectly combined to form a complete limiting hole 2431 that matches the limiting groove 211 on the outer periphery of the lock cylinder 21. This splicing method allows the limiting plate 243 to tightly surround the outer periphery of the lock cylinder 21, effectively constraining the lock cylinder 21 circumferentially. By splitting the limiting plate 243 into upper and lower sub-plates, the installation and maintenance of the lock cylinder 21 are made more convenient. During installation, workers can operate more flexibly without having to completely pass the lock cylinder 21 through a complete limiting hole 2431, reducing installation difficulty and assembly time.

[0090] The second aspect of this application, see [link to application]. Figures 13 to 17 As shown, a box assembly is provided, including a carrier 3 and an object to be fixed 4; one side of the object to be fixed 4 is rotatably connected to the carrier 3 via a rotating connector 5, and the other side is detachably connected to the carrier 3 via any of the locks described in the first aspect; wherein, when the lock is in the locked state, the latch 23 cooperates with the latch 1 to restrict the relative movement between the object to be fixed 4 and the carrier 3, and when the lock is in the unlocked state, the object to be fixed 4 can be opened or closed relative to the carrier 3.

[0091] Among them, the rotating connector 5 can be a hinge, etc.

[0092] Understandably, in practical applications, enclosure components can be widely used in various devices that require frequent maintenance or storage, such as smart street light pole screen housings, smart meter boxes, outdoor communication base station cabinets, and vending machine cabinets. Taking the smart street light pole screen housing as an example, the outer frame of the screen housing serves as the carrier 3, providing a stable installation base for the latch 1; the inspection door or maintenance cover of the screen housing serves as the object to be fixed 4, and is rotatably connected to the outer frame via a rotating connector 5, facilitating opening and closing by staff. Simultaneously, using the lock from the first aspect of this application, the latch 23 of the lock closely engages with the latch 1 during daily use, effectively resisting outdoor strong winds, malicious damage, and other factors, preventing accidental opening of the inspection door or maintenance cover, protecting the internal display module and wiring from rain and dust erosion, and ensuring the stable operation of the light pole screen. When maintenance personnel need to inspect or repair the equipment, they can easily open the inspection door or maintenance cover by simply using external force such as a key to drive the lock cylinder 21, causing the bolt 23 to disengage from the latch 1, and inspect, repair, or replace the internal display module.

[0093] In one possible implementation, the lock body 2 is disposed on the side of the object to be fixed 4 facing the carrier 3, and an operation hole 41 is provided on the object to be fixed 4 at the position corresponding to the lock cylinder 21; the latch 1 is disposed on the carrier 3 at the position corresponding to the lock body 2, and the latch 1 has a limiting cavity for the insertion of the bolt 23; the operation hole 41 is used to accommodate the operating tool to drive the lock cylinder 21, the lock cylinder 21 is used to drive the rotating arm 22 to rotate, and the bolt 23 is used to complete the locking and unlocking actions within the limiting cavity.

[0094] The housing assembly provided in this embodiment, by setting the lock body 2 and the latch 1 in a non-side position outside the housing assembly, can effectively avoid interference problems caused by the setting of the operating hole 41, reserve sufficient operating space for operating tools (such as keys), and ensure that staff can easily drive the lock cylinder 21; at the same time, it also removes obstacles for the installation process of the housing assembly, ensures that it fits tightly with the installation surface, and improves the overall installation stability and operation convenience.

[0095] A third aspect of this application provides a display device, including any of the cabinet components described in the second aspect and a display module, wherein the display module is disposed within the cabinet component.

[0096] When the display device is a light pole screen, the display module is an LED display module.

[0097] The display device provided in this embodiment can eliminate the potential for interference between the operation hole 41 and the mounting surface when the lock body 2 and the latch 1 are located in a non-side position of the non-box assembly. This allows the operation hole 41 to avoid the mounting surface, providing ample operating space for installers. Whether using bolts to fix the light pole screen or unlocking and maintaining the lock cylinder 21 through the operation hole 41 later, the process is smoother and more efficient, significantly improving installation efficiency and reducing installation difficulty and error rate.

[0098] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0099] In view of the detailed description above, these and other changes can be made to these embodiments. This written description includes embodiments of the best mode disclosed in this utility model. The patent scope of this utility model is defined by the claims, which are not limited by this disclosure. The protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in this utility model, based on the technical solution and concept of this utility model, are within the protection scope of this utility model.

Claims

1. A lock, characterized in that, include: The latch and lock body; The latch is mounted on the carrier; The lock body includes a lock cylinder, a rotating arm, and a bolt. The lock cylinder is rotatably mounted on the object to be fixed. The rotating arm is connected to the lock cylinder. The bolt is mounted on the rotating arm. The lock cylinder is used to drive the rotating arm to rotate, thereby causing the bolt to move linearly between a first operating position and a second operating position. Specifically, when the bolt is switched to the first operating position, the bolt and the latch cooperate to lock the lock; when the bolt is in the second operating position, the bolt and the latch separate to unlock the lock.

2. The lock according to claim 1, characterized in that, During the process of the rotating arm driving the locking tongue to switch positions, the rotating arm abuts against the locking tongue.

3. The lock according to claim 1, characterized in that, The latch and the carrier cooperate to form a limiting cavity for the insertion of the bolt. When the lock cylinder is rotated in the first direction, the lock cylinder drives the bolt to move closer to the latch via the rotating arm and toward the first operating position, so that the end of the bolt gradually inserts into the limiting cavity. When the lock cylinder is rotated in the second direction, the lock cylinder drives the bolt away from the latch via the rotating arm and toward the second operating position, so that the end of the bolt exits from the limiting cavity.

4. The lock according to claim 3, characterized in that, The end of the latch is provided with an insertion plate, and the position where the insertion plate contacts the latch has a chamfered structure.

5. The lock according to any one of claims 1 to 4, characterized in that, The lock body also includes: Lock case; The latch is disposed inside the lock housing. A limiting strip hole extending along the moving direction of the latch is provided on the side wall of the lock housing opposite to the latch. A limiting post is provided on the latch that is adapted to the limiting strip hole. The limiting post can move within the limiting strip hole to guide and limit the movement of the latch.

6. The lock according to claim 5, characterized in that, The lock housing includes: Interconnected outer and inner shells; Mounting holes are provided at corresponding positions on both the outer shell and the inner shell, and the mounting holes are used for the lock cylinder to pass through. The outer peripheral surface of the lock cylinder is provided with a limiting groove extending in the circumferential direction; A limiting plate is provided between the outer shell and the inner shell, and a limiting hole adapted to the limiting groove is provided on the limiting plate at a position corresponding to the lock cylinder; During the rotation of the lock cylinder, the limiting hole and the limiting groove cooperate to limit the lock cylinder in the circumferential and axial directions.

7. The lock according to claim 6, characterized in that, The limiting plate includes: Upper limit position board and lower limit position board; Both the upper limit subplate and the lower limit subplate are provided with a half-hole structure, and the two half-hole structures are spliced ​​together to form the limiting hole that matches the limiting groove.

8. A housing assembly, characterized in that, include: Carrier and object to be fixed; One side of the object to be fixed is rotatably connected to the carrier via a rotating connector, and the other side is detachably connected to the carrier via a lock as described in any one of claims 1-7. When the lock is in the locked state, the latch and the buckle cooperate to restrict the relative movement of the object to be fixed and the carrier. When the lock is in the unlocked state, the object to be fixed can be opened or closed relative to the carrier.

9. The housing assembly according to claim 8, characterized in that, The lock body is disposed on the side of the object to be fixed facing the carrier, and an operating hole is provided on the object to be fixed at the position corresponding to the lock cylinder; the latch is disposed on the carrier at the position corresponding to the lock body, and the latch has a limiting cavity for the bolt to be inserted; the operating hole is used to accommodate an operating tool to drive the lock cylinder, the lock cylinder is used to drive the rotating arm to rotate, and the bolt is used to complete the locking and unlocking actions within the limiting cavity.

10. A display device, characterized in that, include: The housing assembly as described in claim 9; The display module is disposed within the housing assembly.

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