Automatic release latch and display assembly

Abstract

The automatic release lock comprises a first lock part, the first lock part has a guide sleeve, a first hole part and a bolt, the bolt extends into the first hole part or retracts from the first hole part; the second lock part can be inserted or pulled out relative to the first lock part, the second lock part has a first check piece and a slider, when the first check piece is inserted into the first hole part, the front end of the first check piece drives the bolt to retract from the first hole part and pass over the bolt, after the front end of the first check piece passes over the bolt, the bolt extends into the first hole part, the first check piece is restricted by the bolt when it is pulled out relative to the first hole part, the slider is slidably arranged at the rear end of the first check piece, when the first check piece is further inserted into the first hole part, the slider drives the bolt to retract from the first hole part and pass over the bolt, after the slider passes over the bolt, when the second lock part is forced in the direction of being pulled out from the first hole part, the first check piece and the slider drive the bolt to retract from the first hole part. The lock of the present invention can be automatically released, and the convenience of using the lock is improved.

Description

Technical Field

[0001] The present invention relates to the field of lock technology, but is not limited to it, and in particular to an automatically released lock. In addition, the present invention also relates to a display screen assembly. Background Art

[0002] There are many known ways to fix two parts, such as screw connection, lock connection, etc. For example, when installing a known LED display assembly, screws and connecting plates are usually used to fix the LED display assembly to a steel structure or a wall. Although the LED display assembly can be firmly installed on the steel structure by screws and connecting plates, the installation process is also cumbersome. For example, screws, connecting plates, wrenches, screw pens, etc. must be prepared, and the disassembly process needs to be carried out in a certain order, otherwise it cannot be disassembled.

[0003] In addition, although there are also locks to fix the LED display assembly, for example, a rotating part with a claw is set on the LED display assembly, and a clamping shaft is set on the steel structure, wall or other rental structure. When installing and disassembling, the rotating part is rotated by using, for example, an Allen wrench to get it stuck on or disengaged from the clamping shaft. Although this lock is more convenient than the screw fixation method, it also requires the use of tools, and for the operator, because it is necessary to operate the wrench while supporting the LED display assembly, for safety reasons, 2-3 people are usually required when installing and disassembling the display assembly. Summary of the invention

[0004] In view of the above technical problems, the present invention proposes an automatic release lock to improve the ease of use of the lock. In addition, the present invention also proposes a display screen assembly using the automatic release lock.

[0005] A first locking part, wherein the first locking part has a guide sleeve, and the guide sleeve is provided with a first hole portion that passes through at least one end thereof in the axial direction, and a latch pin, and the latch pin is arranged to extend into the first hole portion or retract from the first hole portion in a direction intersecting with the axial direction of the first hole portion; a second locking part, the second locking part can be inserted into or pulled out relative to the first locking part, and the second locking part has a first check piece, the first check piece is inserted into the first hole portion, and the front end of the first check piece drives the latch pin to retract from the first hole portion and pass over the latch pin, and the front end of the first check piece passes over the After the latch is inserted, the latch extends into the first hole portion, and the withdrawal of the first check member relative to the first hole portion is restricted by the latch; a slider is arranged at the rear end of the first check member and slides along the axial direction of the first check member. When the first check member is further inserted into the first hole portion, the slider drives the latch to retract from the first hole portion and pass over the latch. After the slider passes over the latch, when the second locking portion is forced in the direction of withdrawal from the first hole portion, the first check member and the slider drive the latch to retract from the first hole portion.

[0006] Preferably, the front end of the latch extends into the first hole portion, and the front end of the latch is provided with a first guide surface on a side facing the entrance of the first hole portion, and a first stop surface on a side facing away from the entrance of the first hole portion.

[0007] Further preferably, a second guide surface is provided at the front end of the first check member, and a second stop surface is provided behind the second guide surface; when the first check member is inserted into the first hole portion, the second guide surface abuts against the first guide surface, driving the pin to retract from the first hole portion; after the front end of the first check member passes over the pin, the pin extends into the first hole portion, and the second stop surface fits against the first stop surface.

[0008] Further preferably, a third guide surface is provided at the rear end of the slider; when the first check member is further inserted into the first hole portion, the slider abuts against the first guide surface, driving the latch to retract and pass over the latch; after the slider passes over the latch, when the second locking portion is forced in the direction of being pulled out from the first hole portion, the latch abuts against the third guide surface, and slides along the third guide surface and is driven to retract.

[0009] Further preferably, a fourth guide surface is provided at the front end of the sliding block, and when the first check member is further inserted into the first hole portion, the fourth guide surface abuts against the first guide surface.

[0010] Preferably, a first driving block is disposed at the front end of the first backstop, and a first spring is disposed at the rear end of the sliding block, and the first spring pushes the sliding block to fit the first driving block along the axial direction of the first backstop.

[0011] Preferably, the second locking part also has a base, the first check member is installed on the base, and a first limiting member is arranged between the base and the guide sleeve. After the front end of the first check member passes over the pin, the insertion of the second locking part relative to the first locking part is limited by the first limiting member.

[0012] Further preferably, the first limiting member is a spring member.

[0013] Preferably, second holes penetrating the guide sleeve are respectively provided on both radial sides of the guide sleeve, the latch pin is embedded in the second hole portion, a second spring is also embedded in the second hole portion, and the second spring pushes the latch pin in a direction to extend the latch pin to the first hole portion.

[0014] A display screen assembly, comprising a display screen housing; any of the above-mentioned automatic release locks, wherein the first lock portion is mounted on the display screen housing, and the second lock portion is fixed to the position where the display screen assembly is mounted, or the second lock portion is mounted on the display screen housing, and the first lock portion is fixed to the position where the display screen assembly is mounted.

[0015] The automatic release lock of the present invention is provided with a latch, a first check piece and a slider. When the first check piece is inserted into the first hole of the guide sleeve, the withdrawal of the first check piece relative to the first hole is limited by the latch, so it can be reliably locked. After the first check piece is further inserted into the first hole and the slider passes over the latch, when the second lock part is forced in the direction of withdrawal from the first hole, the first check piece and the slider drive the latch to retract from the first hole. Therefore, the lock can be automatically released, and the convenience of using the lock is improved. The display screen assembly provided with the automatic release lock of the present invention is also more convenient to assemble and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of an embodiment of the automatic release lock buckle of the present invention;

[0017] Figure 2 yes Figure 1 An axial cross-sectional view of a first locking portion and a second locking portion;

[0018] Figure 3 is a schematic diagram showing that the first check member is inserted into the first hole portion of the guide sleeve and is restricted from being pulled out of the first hole portion;

[0019] Figure 41 is a diagram illustrating the automatic release of the first locking part and the second locking part from each other, wherein (a) is a schematic diagram of the front end of the slider abutting against the latch pin, and (b) is a schematic diagram of the slider passing over the latch pin along the direction in which the first return stopper is inserted into the first hole portion;

[0020] Figure 5 is a diagram further illustrating that the first locking portion and the second locking portion are automatically released from each other;

[0021] Figure 6 It is used Figure 1 A schematic diagram of an embodiment of a display screen assembly with an automatic release latch;

[0022] Figure 7 yes Figure 6 A partial cross-sectional view of a display assembly. DETAILED DESCRIPTION

[0023] The present invention is described in detail below with reference to the accompanying drawings. It should be noted that the present invention can be implemented in many different ways and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to enable those skilled in the art to have a more thorough and comprehensive understanding of the contents disclosed in the present invention.

[0024] In the description of the embodiments of the present invention, if orientation descriptions are involved, the orientations or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, etc. are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] In the description of the embodiments of the present invention, if a feature is referred to as being "set", "fixed", "connected", or "installed" on another feature, it may be directly set, fixed, or connected to the other feature, or it may be indirectly set, fixed, connected, or installed on the other feature. In the description of the embodiments of the present invention, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than", or "exceeds" is involved, it should be understood as not including the number itself, and if "above", "below", or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] Figure 1 is a schematic diagram of an embodiment of an automatic release lock buckle 100, Figure 2is an axial cross-sectional view of the first locking part 1 and the second locking part 2, referring to Figure 1 , Figure 2 The automatic release lock 100 includes a first lock part 1 and a second lock part 2 that can be inserted or pulled out relative to the first lock part 1. Although it is described that the second lock part 2 can be inserted or pulled out relative to the first lock part 1, the primary and secondary relationship between the two is not limited, as long as they can be plugged in and out of each other. For example, the first lock part 1 can be installed on a component that needs to be disassembled, such as an LED display assembly, and the second lock part 2 can be installed on a fixing part such as a steel structure or a wall. Alternatively, the second lock part 2 can be installed on a component that needs to be disassembled, and the first lock part 1 can be installed on a fixing part.

[0027] The first lock part 1 comprises a guide sleeve 11 and a latch 12. The guide sleeve 11 is provided with a first hole 111 which passes through at least one end of the axial direction of the guide sleeve 11. Preferably, the first hole 111 passes through only one end of the axial direction of the guide sleeve 11. The other end of the guide sleeve 11 is provided with a guide sleeve mounting hole 114 for fixing the guide sleeve 11. The latch 12 is arranged to extend into the first hole 111 or retract from the first hole 111 in a direction intersecting the axial direction of the first hole 111. Although the latch 12 and the axial direction of the first hole 111 can be inserted into the first hole 111 non-coaxially, in order to achieve a balance between extension and retraction, the latch 12 is arranged to extend into the first hole 111 or retract from the first hole 111 in a direction perpendicular to the axial direction of the first hole 111. Preferably, the latch 12 can be directly mounted on the guide sleeve 11. Specifically, second holes 112 penetrating the guide sleeve 11 are respectively provided on both sides of the guide sleeve 11 in the radial direction, and the axial direction of the second hole 112 is perpendicular to the axial direction of the first hole 111. On the outer side of the guide sleeve 11, at two second holes 112, latch mounting plates 115 are installed, and the rear end 12b of the latch 12 is slidably mounted on the latch mounting plates 115, and the latch 12 is embedded in the second hole 112 and the front end 12a of the latch 12 can extend into the first hole 111. In order to enable the front end 12a of the latch 12 to automatically extend into the first hole 111, a second spring 113 is embedded in the second hole 112, and one end of the second spring 113 abuts against the latch mounting plate 115, and the other end of the second spring 113 abuts against the latch 12, thereby, the second spring 113 pushes the latch 12 in the direction of extending the latch 12 into the first hole 111.

[0028] Figure 3 21 is a schematic diagram showing that the first check member 21 is inserted into the first hole portion 111 of the guide sleeve 11 and the withdrawal relative to the first hole portion 111 is restricted. Figure 3The second lock portion 2 has a first check member 21 and a slider 22. The first check member 21 is inserted into the first hole portion 111 and can slide in the first hole portion 111. When the first check member 21 is inserted into the first hole portion 111, the front end 21a of the first check member 21 drives the latch 12 to retract from the first hole portion 111, thereby the front end 21a of the first check member 21 passes over the latch 12. After the front end 21a of the first check member 21 passes over the latch 12, the latch 12 extends into the first hole portion 111, and the withdrawal of the first check member 21 relative to the first hole portion 111 is restricted by the latch 12.

[0029] The slider 22 is disposed at the rear end 21b of the first check member 21 and slides along the axial direction of the first check member 21. The slider 22 can be directly inserted into the first check member 21. After the front end 21a of the first check member 21 passes over the latch 12, when the first check member 21 is inserted into the first hole 111, the first check member 21 is further inserted into the first hole 111, that is, the first check member 21 continues to slide in the first hole 111, the slider 22 abuts against the latch 12 and drives the latch 12 to retract from the first hole 111. Thus, the slider 22 also passes over the latch 12 along the direction in which the first check member 21 is inserted into the first hole 111. After the slider 22 passes over the latch 12, when the second lock part 2 is forced in the direction in which it is pulled out of the first hole 111, the first check member 21 and the slider 22 drive the latch 12 to retract from the first hole 111, thereby the second lock part 2 (i.e., the first check member 21 and the slider 22) can be pulled out of the first hole 111. Here, the first check member 21 slides in the first hole 111, which may include the case where the first check member 21 is fixed and the guide sleeve 11 slides relative to the first check member 21; the case where the guide sleeve 11 is fixed and the first check member 21 slides relative to the guide sleeve 11; and the case where the guide sleeve 11 and the first check member 21 slide simultaneously.

[0030] Figure 4 1 is a diagram illustrating the automatic release of the first locking part 1 and the second locking part 2 from each other, wherein (a) is a schematic diagram showing that the front end 22a of the slider 22 abuts against the latch 12, and (b) is a schematic diagram showing that the slider 22 passes over the latch 12 in the direction in which the first return stop 21 is inserted into the first hole 111. Figure 5 is a diagram further illustrating the automatic release between the first locking part 1 and the second locking part 2, referring to Figure 4 , Figure 5 , the first check member 21 and the slider 22 are described in more detail below.

[0031] Preferably, the front end 12a of the latch 12 is provided with a first guide surface 121 on the side facing the entrance of the first hole 111, and the first guide surface 121 can be set as an arc surface or an inclined surface. The front end 12a of the latch 12 is provided with a first stop surface 122 on the side facing away from the entrance of the first hole 111, and the first stop surface 122 is set perpendicular to the axial direction of the first hole 111. The front end 21a of the first check member 21 is provided with a second guide surface 211, and the rear of the second guide surface 211 is provided with a second stop surface 212. For example, preferably, the front end 21a of the first check member 21 is provided with a first driving block 23, and the first driving block 23 can be a hemispherical lock head, with the hemispherical surface of the lock head as the second guide surface 211, and the hemispherical rear of the lock head as the second stop surface 212, and the second stop surface 212 is in a plane perpendicular to the axial direction of the first hole 111. Thus, when the first stopper 21 is inserted into the first hole 111, the hemispherical second guide surface 211 abuts against the arc or inclined first guide surface 121, driving the bolt 12 to retract from the first hole 111; after the front end 21a of the first stopper 21, i.e. the lock head, passes over the bolt 12, the bolt 12 extends into the first hole 111, and the second stop surface 212 abuts against the first stop surface 122. Thus, the first stopper 21 can easily drive the bolt 12 to retract and insert into the first hole 111, and when the second guide surface 211 of the first stopper 21 abuts against the first stop surface 122 of the bolt 12 located on the side facing away from the entrance of the first hole 111, the first stopper 21 is restricted from being pulled out from the first hole 111, thereby restricting the mutual pulling out of the first lock part 1 and the second lock part 2.

[0032] In order to restrict the continued insertion and extraction of the first lock part 1 and the second lock part 2 from each other after the first driving block 23, i.e., the lock head, of the front end 21a of the first stopper 21 passes over the bolt 12, so that the first lock part 1 and the second lock part 2 are relatively fixed, preferably, the second lock part 2 also has a base 25, the first stopper 21 is mounted on the base 25, and a first limiting member 26 is provided between the base 25 and the guide sleeve 11, one end of the first limiting member 26 abuts against the base 25, and the other end abuts against the guide sleeve 11, and after the front end 21a of the first stopper 21 passes over the bolt 12, the insertion of the second lock part 2 relative to the first lock part 1 is restricted by the first limiting member 26. In this way, it is possible to prevent the first stopper 21 from being further inserted into the first hole 111 due to an accident, so that the slider 22 passes over the bolt 12. Preferably, the first limiting member 26 can be a spring member, such as a coil spring. When an external force is applied to compress the coil spring, the first check member 21 is inserted into the first hole 111, and after the front end 21a of the first check member 21 passes over the latch 12, due to the restoring force of the spring, it is difficult to further compress the spring in the absence of an active external force, thereby preventing the first check member 21 from being further inserted into the first hole 111. It should be noted that in the following description, since when the first lock 1 and the second lock 2 are automatically released, it is necessary to further insert the first check member 21 deeper into the first hole 111 after the front end 21a of the first check member 21 passes over the latch 12, the size of the spring member is also moderate to prevent the compression force from being too large, which increases the difficulty of automatically releasing the first lock 1 and the second lock 2.

[0033] As described above, in the automatic release lock 100 of the present embodiment, in order to enable the lock, i.e., the first lock part 1 and the second lock part 2, to be automatically released from each other, the second lock part 2 has a slider 22. After the lock head of the front end 21a of the first backstop 21 passes over the bolt 12, when the first backstop 21 is further inserted into the first hole 111, the slider 22 abuts against the first guide surface 121 of the front end 12a of the bolt 12, driving the bolt 12 to retract and pass over the bolt 12. Preferably, in order to make it easier for the slider 22 to pass over the bolt 12, the front end 22a of the slider 22 is provided with a fourth guide surface 222. When the first backstop 21 is further inserted into the first hole 111, the fourth guide surface 222 abuts against the first guide surface 121, thereby causing the first guide surface 121 to retract while sliding along the fourth guide surface 222.

[0034] Preferably, in order to make the second lock part 2 easier to be pulled out (automatically released) relative to the first lock part 1, the rear end 22b of the slider 22 is provided with a third guide surface 221. After the slider 22 passes over the latch 12, when a force is applied in the direction of pulling the second lock part 2 out of the first hole 111, the latch 12 abuts against the third guide surface 221 and is driven to retract along the third guide surface 221. More preferably, in order to make the latch 12 easier to slide along the third guide surface 221, the latch 12 may be provided with an oblique angle or a rounded corner at the lower part of the first stop surface 122. When the latch 12 is driven to retract from the first hole 111, the second lock part 2 can be easily pulled out relative to the first lock part 1. Since the slider 22 is slidable on the first check member 21, when the latch 12 slides along the third guide surface 221, the slider 22 is pushed along the axial direction of the first check member 21 to fit the front end 21a of the first check member 21, specifically, to fit the back of the first drive block 23 located at the front end 21a of the first check member 21 (i.e., the back of the lock head), thereby ensuring that the first drive block 23 and the slider 22 fit together and are in a state of always squeezing the latch 12 to retract it, thereby facilitating the automatic release between the first lock part 1 and the second lock part 1. Further preferably, in order to make the slider 22 and the first drive block 23 fit more stably, the rear end 22b of the slider 22 is provided with a first spring 24, and the first spring 24 pushes the slider 22 to fit the first drive block 23 along the axial direction of the first check member 21. Specifically, for example, the slider 22 is embedded on the first check member 21, and one end of the first spring 24 abuts against the base 25, and the other end abuts against the slider 22. The first spring 24 may be a round coil spring with a relatively small elastic force. The elastic force of the first spring 24 is not enough to cause the slider 22 to drive the latch 12 to retract. However, after the first check member 21 is further inserted into the first hole 111 and the slider 22 passes over the latch 12, the first spring 24 can drive the slider 22 to fit the first driving block 23. More preferably, a receiving cavity 231 is provided behind the first driving block 23. The first spring 24 pushes the slider 22 to be accommodated in the receiving cavity 231 and fit the first driving block 23. After the slider 22 and the first driving block 23 fit, the whole can be roughly spherical, thereby facilitating the automatic release of the first locking part 1 and the second locking part 2.

[0035] Figure 6 It is used Figure 1 A schematic diagram of an embodiment of a display screen assembly 300 for automatically releasing a lock 100, Figure 7 is a partial cross-sectional view of the display assembly 300, referring to Figure 6 , Figure 7The automatic release lock 100 of this embodiment can be applied to various occasions, for example, it can be applied to the installation of the LED display assembly 300. Specifically, the display assembly 300 includes a display box 200 and the automatic release lock 100, wherein the first lock part 1 is installed on the display box 200, and the second lock part 2 is fixed to the position where the display assembly 300 is installed, such as the steel structure 400 or the wall where the display assembly 300 is installed, or the rental installation structure of the display assembly 300. In addition, the second lock part 2 can also be installed on the display box 200, and the first lock part 1 can be fixed to the installation position of the display assembly 300.

[0036] The various specific technical features described in the above specific embodiments can be combined in any way without contradiction. To avoid unnecessary repetition, the present invention does not separately explain various possible combinations.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention but not to limit the same. Any modification or equivalent substitution that does not depart from the scope of the present invention shall be included in the technical solutions of the present invention.

Claims

1. Automatically release the lock, It is characterized in that include The first locking portion has The guide sleeve is provided with a first hole portion penetrating at least one axial end thereof, a latch pin, the latch pin being arranged to extend into the first hole portion or retract from the first hole portion in a direction intersecting the axial direction of the first hole portion; A second locking portion, wherein the second locking portion can be inserted into or removed from the first locking portion, and the second locking portion has: a first stopper, the first stopper is inserted into the first hole portion, the front end of the first stopper drives the latch to retract from the first hole portion and pass over the latch, after the front end of the first stopper passes over the latch, the latch extends into the first hole portion, and the withdrawal of the first stopper relative to the first hole portion is restricted by the latch, a slider, the slider being arranged at the rear end of the first check member and sliding along the axial direction of the first check member, when the first check member is further inserted into the first hole portion, the slider drives the latch to retract from the first hole portion and pass over the latch, and after the slider passes over the latch, when the second locking portion is forced in a direction of being pulled out of the first hole portion, the first check member and the slider drive the latch to retract from the first hole portion; A first driving block is disposed at the front end of the first backstop, and a first spring is disposed at the rear end of the slider, and the first spring pushes the slider to fit the first driving block along the axial direction of the first backstop; The second locking part also has a base, the first check piece is installed on the base, and a first limiting piece is arranged between the base and the guide sleeve. After the front end of the first check piece passes over the latch, the insertion of the second locking part relative to the first locking part is limited by the first limiting piece.

2. The automatic release buckle according to claim 1, It is characterized in that The front end of the latch extends into the first hole portion, and the front end of the latch is provided with a first guide surface on a side facing the entrance of the first hole portion, and a first stop surface on a side facing away from the entrance of the first hole portion.

3. The automatic release buckle according to claim 2, It is characterized in that The front end of the first return stopper is provided with a second guide surface, and the rear of the second guide surface is provided with a second stop surface; When the first return stopper is inserted into the first hole, the second guide surface abuts against the first guide surface, driving the latch to retract from the first hole; After the front end of the first stop member passes over the latch, the latch extends into the first hole, and the second stop surface fits the first stop surface.

4. The automatic release buckle according to claim 2, It is characterized in that A third guide surface is provided at the rear end of the slider; When the first check member is further inserted into the first hole, the slider abuts against the first guide surface, driving the latch to retract and pass over the latch; After the slider passes over the latch, when the second locking portion is forced in a direction of being pulled out from the first hole, the latch abuts against the third guide surface and slides along the third guide surface to be driven and retracted.

5. The automatic release buckle according to claim 4, It is characterized in that A fourth guide surface is provided at the front end of the slider, and when the first check member is further inserted into the first hole, the fourth guide surface abuts against the first guide surface.

6. The automatic release buckle according to claim 1, It is characterized in that The first limiting member is a spring member.

7. The automatic release buckle according to any one of claims 1 to 5, It is characterized in that The guide sleeve is provided with second holes penetrating the guide sleeve on both radial sides, the latch is embedded in the second hole, a second spring is also embedded in the second hole, and the second spring pushes the latch in a direction to extend the latch to the first hole.

8. Display assembly, It is characterized in that include Display cabinet; The automatic release lock as described in any one of claims 1 to 7, wherein the first locking portion is mounted on the display screen box, and the second locking portion is fixed to the position where the display screen assembly is installed, or the second locking portion is mounted on the display screen box, and the first locking portion is fixed to the position where the display screen assembly is installed.

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