A display screen lock

Abstract

The application relates to the technical field of display screens, in particular to a display screen lock catch which comprises a shell, a locking rod and an adjusting gear, one end of the locking rod is provided with an outwardly protruding locking part, the other end is provided with a spiral tooth part, the adjusting gear is a spiral gear, the adjusting gear is perpendicular to the locking rod, the spiral tooth part of the locking rod is in transmission connection with the adjusting gear, a limiting recess is arranged on the locking rod, a limiting part is arranged on the shell, and the end of the limiting part is located in the limiting recess. The display screen lock catch obtained by the application is connected with two adjacent display screen box bodies through the cooperation of the adjusting gear and the spiral tooth part on the locking rod and the cooperation of the limiting part and the limiting recess, the axial movement and the circumferential movement of the locking rod are realized, the structure is simple, the operation is convenient, the display screen lock catch is convenient to disassemble and assemble, the front operation can be realized during the disassembly and assembly, and the efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of display screen technology, and in particular to a display screen latch. Background Technology

[0002] In the existing technology, there are various forms of splicing displays.

[0003] The first method uses a connecting plate for connection. The connecting plate needs to be fixed by bolts or a quick-clamping mechanism. The connection is reliable, but the overall weight is large, the connection is inconvenient, and the disassembly and assembly are troublesome.

[0004] The second method uses side-mounted screws for connection. These screws can connect to the side of the display cabinet and are lightweight, but they can only rotate sideways, limiting the operating space and reducing manual efficiency. Alternatively, a steering transmission mechanism can be used to change the operating direction of the side-mounted screws. While this solves the problem of limited operating space, the overall operating efficiency is still relatively slow and the cost is higher.

[0005] The third type uses various quick-lock mechanisms, which are highly efficient in operation, but have a complex overall structure and high cost.

[0006] Therefore, for the connection structure of the display cabinet, it is necessary to design a connection lock structure that is simple in structure, quick to operate and low in cost. Summary of the Invention

[0007] To address the shortcomings of the aforementioned technologies, this invention provides a display screen latch with a simple structure. It allows for switching between locked and unlocked states through front adjustment, making the connection and disassembly of displays simple, convenient, and cost-effective.

[0008] This invention discloses a display screen latch, comprising a housing, a locking rod, and an adjusting gear. One end of the locking rod has an outwardly protruding locking portion, and the other end has a helical tooth portion. The adjusting gear is a helical gear. The locking rod is disposed inside the housing and can slide axially and rotate circumferentially within the housing. One end of the locking rod extends outside the housing. The adjusting gear is rotatably connected inside the housing and is perpendicular to the locking rod. The helical tooth portion of the locking rod engages with the adjusting gear for transmission. A limiting groove is provided on the locking rod, comprising an axial groove and a circumferential groove. The axial groove communicates with the circumferential groove, and the circumferential groove is located at the end of the axial groove near the helical tooth portion. A limiting portion is provided on the housing, with its end located within the limiting groove.

[0009] In actual use, the housing is fixed to the display screen cabinet. The fixing method can be screw connection, connection via clips, or a single integrated structure. The helical teeth of the locking rod and the adjusting gear can both be considered helical gears. Helical gears are existing known products, and their specific structure will not be described in detail.

[0010] The length of the axial groove in the limiting groove matches the length required for the end of the locking rod to be inserted into the adjacent display cabinet to the locking position. The length of the circumferential groove in the limiting groove matches the angle of rotation required for the locking rod to be inserted into the adjacent display cabinet to the locking position.

[0011] Arc-shaped recesses are provided at both ends of the limiting groove. The limiting part includes a locking screw, a spring, and a steel ball. The housing is provided with a hole for assembling the limiting part. The locking screw is threaded onto the hole. The steel ball is located in the limiting groove. A spring is provided between the steel ball and the locking screw.

[0012] A handle or adjustment recess is provided at the center of one end of the adjusting gear, and a through hole is provided on the housing at the corresponding end of the adjusting gear. The handle extends to the outside of the housing or the adjustment recess is exposed in the through hole.

[0013] Mounting holes are provided on the housing for fixing the housing to the display screen.

[0014] The locking parts are multiple and evenly spaced on the circumferential surface of the locking rod end.

[0015] The display screen latch obtained by the present invention utilizes the engagement of the adjusting gear and the helical teeth on the locking rod, and the engagement of the limiting part and the limiting groove to realize the axial and circumferential movement of the locking rod, thereby connecting two adjacent display screen cabinets. Its structure is simple, easy to operate, and convenient to disassemble and assemble. At the same time, the disassembly and assembly process can be carried out from the front, improving efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the frontal exploded structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the exploded rear structure of the present invention;

[0020] Figure 5 This is a cross-sectional schematic diagram of the present invention. Detailed Implementation

[0021] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0022] Example 1:

[0023] like Figures 1-5 As shown, this invention discloses a display screen latch, including a housing 1, a locking rod 2, and an adjusting gear 3. One end of the locking rod 2 is provided with an outwardly protruding locking part 5, and the other end is provided with a helical tooth part 4. The adjusting gear 3 is a helical gear. The locking rod 2 is disposed inside the housing 1 and can slide axially and rotate circumferentially within the housing 1. The locking rod 2 at one end of the locking part 5 extends to the outside of the housing 1. The adjusting gear 3 is rotatably connected to the inside of the housing 1 and is perpendicular to the locking rod 2. The helical tooth part 4 of the locking rod 2 is engaged and transmitted with the adjusting gear 3. A limiting groove 9 is provided on the locking rod 2. The limiting groove 9 includes an axial groove 9-1 arranged axially and an axial groove 9-2 arranged circumferentially. The axial groove 9-1 communicates with the axial groove 9-2, and the axial groove 9-2 is located at the end of the axial groove 9-1 near the helical tooth part 4. A limiting part 10 is provided on the housing 1, and the end of the limiting part 10 is located within the limiting groove 9.

[0024] Both the helical teeth 4 of the locking rod 2 and the adjusting gear 3 can be considered as helical gears. Helical gears are existing known products, and their specific structure will not be described in detail.

[0025] During the rotation of the helical gear of adjusting gear 3 and the helical part of locking rod 2, due to the transmission characteristics of the helical gear, it has both axial and circumferential transmission forces. Therefore, adjusting gear 3 acts on locking rod 2 with both circumferential rotational force and axial movement force. Under the action of limiting groove 9 and limiting part 10 on the gear, locking rod 2 can move axially and rotate circumferentially respectively, so as to realize the two steps of insertion and locking on two adjacent display cabinets. Under normal operation, the rotation of adjusting gear 3 drives locking rod 2 to move. When limiting part 10 is located in the axial groove 9-1 of limiting groove 9, limiting part 10 restricts the circumferential rotation of locking rod 2, allowing only axial movement. Therefore, under the action of adjusting gear 3, locking rod 2 undergoes axial displacement and can be inserted into the interior of adjacent display cabinets. When the limiting part 10 reaches the end of the axial groove 9-1 and is located in the axial groove 9-2, the limiting part 10 restricts the axial movement of the locking rod 2. Therefore, the locking rod 2 can only rotate circumferentially. Under the action of the adjusting gear 3, the locking rod 2 rotates circumferentially, thereby locking the locking rod 2 in the adjacent display screen cabinet.

[0026] The length of the axial groove 9-1 in the limiting groove 9 matches the length required for the end of the locking rod 2 to be inserted into the adjacent display cabinet until it reaches the locking position. The length of the axial groove 9-2 in the limiting groove 9 matches the angle of rotation required for the locking rod 2 to reach the locking state after being inserted into the adjacent display cabinet.

[0027] Arc-shaped recessed holes 9-3 are provided at both ends of the limiting groove 9. The limiting part 10 includes a locking screw 10-1, a spring 10-3, and a steel ball 10-4. The housing 1 is provided with a hole for assembling the limiting part 10. The locking screw 10-1 is threaded into the hole. The steel ball 10-4 is located inside the limiting groove 9. The spring 10-3 is provided between the steel ball 10-4 and the locking screw 10-1. Arc-shaped recessed holes 9-3 are provided at both ends of the limiting groove 9, that is, one arc-shaped recessed hole 9-3 is located inside the axial groove 9-1, and the other arc-shaped recessed hole 9-3 is located inside the axial groove 9-2. During the rotation of the adjusting gear 3, the locking rod 2 undergoes axial or circumferential displacement. When it reaches its position, the steel ball 10-4 of the limiting part 10 corresponds precisely to the arc-shaped concave hole 9-3. Under the action of the spring 10-3, the steel ball 10-4 is pressed into the arc-shaped concave hole 9-3. With part of the steel ball 10-4 located within the arc-shaped concave hole 9-3, the position of the locking rod 2 is limited. If the locking rod 2 needs to continue moving, the adjusting gear 3 needs to input a larger force to squeeze the steel ball 10-4 out of the arc-shaped concave hole 9-3. Therefore, this positioning effect allows the operator to perceive whether the adjustment is in place. Of course, to make installation more convenient and reduce the size requirements of the hole for installing the spring 10-3, a hollow rivet 10-2 can be fitted inside the hole for installing the spring 10-3. The locking screw 10-1 presses against the hollow rivet 10-2, and one end of the spring 10-3 is located inside the hollow rivet 10-2. This better restricts the effect of the spring 10-3.

[0028] A handle or adjusting recess 6 is provided at the center of one end of the adjusting gear 3. A through hole 8 is provided on the housing 1 at the corresponding end of the adjusting gear 3. The handle extends to the outside of the housing 1, or the adjusting recess 6 is exposed in the through hole 8. In this embodiment, the adjusting recess 6 is provided at the center of the adjusting gear 3. The adjusting recess 6 can be an internal hexagonal socket. The through hole 8 on the housing 1 exposes the adjusting recess 6, so that during actual adjustment, an internal hexagonal wrench can be inserted into the adjusting recess 6 through the through hole 8 and rotated to rotate the adjusting gear 3. Of course, in other embodiments, a handle can be provided at the end of the adjusting gear 3, and the handle extends to the outside of the housing 1, so that the adjusting gear 3 can be rotated directly by the handle.

[0029] A mounting hole 7 is provided on the housing 1, which is used to fix the housing 1 to the display screen. The housing 1 of this invention can be fixed to the display screen housing via the mounting hole 7 and screws. Of course, in other embodiments, the housing 1 can be fixed to the display screen housing in other ways.

[0030] The locking parts 5 are multiple and evenly spaced on the circumferential surface of the end of the locking rod 2. Normally, four locking parts 5 can be selected, evenly spaced on the circumferential surface of the end of the locking rod 2. The locking holes on the adjacent display screen housing that cooperate with the locking rod 2 have four inwardly protruding holes. The locking part 5 enters between two of the inwardly protruding holes, and after rotating a certain angle, the locking part 5 aligns with the position of the inwardly protruding hole, thus achieving locking. By using four locking parts 5, the rotation angle required for the locking rod 2 to switch between locking and unlocking states is relatively small, improving operational efficiency.

[0031] In this embodiment, the adjusting gear 3 engages with the helical gear at the end of the locking rod 2, and the limiting groove 9 engages with the limiting part 10 to achieve axial and circumferential displacement of the locking rod 2, thus completing the locking and unlocking between adjacent displays. The overall structure is simple, small in size, easy to operate, low in cost, and quick and efficient to assemble and disassemble.

[0032] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the interaction relationship between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simplification, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A display screen latch, characterized in that: The device includes a housing, a locking rod, and an adjusting gear. One end of the locking rod has an outwardly protruding locking portion, and the other end has a helical tooth portion. The adjusting gear is a helical gear. The locking rod is located inside the housing and can slide axially and rotate circumferentially within the housing. One end of the locking rod extends outside the housing. The adjusting gear is rotatably connected inside the housing and is perpendicular to the locking rod. The helical tooth portion of the locking rod engages with the adjusting gear for transmission. A limiting groove is provided on the locking rod, and the limiting groove includes a axial... The housing includes an axial groove and a circumferential groove, which are connected and located at one end of the axial groove near the helical teeth. A limiting part is provided on the housing, with the end of the limiting part located within the limiting groove. Arc-shaped recesses are provided at both ends of the limiting groove. The limiting part includes a locking screw, a spring, and a steel ball. The housing has a hole for assembling the limiting part, and the locking screw is threaded into the hole. The steel ball is located within the limiting groove, and a spring is provided between the steel ball and the locking screw.

2. The display screen latch according to claim 1, characterized in that: A handle or adjustment recess is provided at the center of one end of the adjusting gear, and a through hole is provided on the housing at the corresponding end of the adjusting gear. The handle extends to the outside of the housing or the adjustment recess is exposed in the through hole.

3. A display screen latch according to claim 1, characterized in that: Mounting holes are provided on the housing for fixing the housing to the display screen.

4. A display screen latch according to claim 1, characterized in that: The locking parts are multiple and evenly spaced on the circumferential surface of the locking rod end.

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