Pull cord to unlock the bracket

Abstract

The present invention discloses a pull-cord unlocking bracket, comprising a front bracket assembly, a rear bracket assembly, a first fastener, a second fastener and an unlocking mechanism. Taking the actual use direction as a reference, the direction perpendicular to the front face of a display screen is assumed to be the front-to-back direction. The front bracket assembly for mounting the display screen can be movably mounted on the front side of the rear bracket assembly along the front-to-back direction. The first fastener is fixedly mounted on the front bracket assembly, and the second fastener is fixedly mounted on the rear bracket assembly. The first fastener can be engaged and connected with the second fastener. The unlocking mechanism comprises a pull cord and a release device, and the release device can be movably mounted on one of the front bracket assembly or the rear bracket assembly. Movement of the release device can realize the release of the first fastener and the second fastener. One end of the pull cord is mounted on the release device, and the other end of the pull cord can be exposed to the outside of the display screen. The present invention occupies a small space, has fast unlocking, is convenient for maintenance of the display screen, is easy to use, and can also be applicable to multiple display screen installation methods.

Description

Technical Field

[0001] The invention relates to a bracket, in particular to a pull cord unlocking bracket. Background Art

[0002] With the rapid development of televisions and display screens, people's pursuit of quality of life and higher requirements for the use of televisions and display screens are becoming higher and higher; however, the existing screens are becoming thinner and thinner, and the external force they can withstand is getting smaller and smaller, and even a slight vibration may shatter the screen. Although there are brackets on the market that do not require springs or gas springs, which can solve such problems, if you encounter multiple screens, such as 9 or 16 screens, you will encounter maintenance problems later. You cannot easily pop out the TV in the middle. When the display screen bracket changes between the use state and the maintenance state, the locking mechanism needs to be unlocked. The current unlocking mechanism is complicated and inconvenient to operate. Summary of the invention

[0003] In order to overcome the above-mentioned defects, the present invention provides a pull-cord unlocking bracket, the unlocking mechanism of which has a simple structure and can easily and quickly unlock and lock the display screen bracket, thereby realizing rapid switching between the use state and the maintenance state.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows: a pull-cord unlocking bracket, comprising a front bracket assembly, a rear bracket assembly, a first fastener, a second fastener and an unlocking mechanism. Taking the actual use direction as a reference, the direction perpendicular to the front of the display screen is assumed to be the front-to-back direction. The front bracket assembly for mounting the display screen can be movably mounted on the front side of the rear bracket assembly along the front-to-back direction. The first fastener is fixedly mounted on the front bracket assembly, and the second fastener is fixedly mounted on the rear bracket assembly. The first fastener can be engaged and connected with the second fastener. The unlocking mechanism comprises a pull cord and a release device. The release device can be movably mounted on one of the front bracket assembly or the rear bracket assembly. The movement of the release device can realize the release of the first fastener and the second fastener. One end of the pull cord is mounted on the release device, and the other end of the pull cord can be exposed outside the display screen.

[0005] As a further improvement of the present invention, a socket is formed on the second fastener, and the first fastener can be inserted into the socket of the second fastener. At least one side wall of the socket is provided with a protruding structure or an inner groove that can be elastically extended and contracted. The side wall of the first fastener is provided with an inner groove that matches the protruding structure on the side wall of the socket of the second fastener or a protruding structure that can be elastically extended and contracted that matches the inner groove on the side wall of the socket of the second fastener. The protruding structure can be stuck in the inner groove, and the movement of the release device can force the elastically extendable protruding structure to contract and exit the inner groove.

[0006] As a further improvement of the present invention, the tripping device includes a connecting rod and an elastic member, one end of the connecting rod is hinged on one of the front bracket assembly or the rear bracket assembly, the elastic member provides the connecting rod with an elastic retaining force to keep it overlapped with the front bracket assembly or the rear bracket assembly, one end of the pull rope is connected to the other end of the connecting rod, and the other end of the connecting rod can be tightly against the surface of the rear bracket assembly or the front bracket assembly.

[0007] As a further improvement of the present invention, a bearing is further provided, which is rotatably mounted on the other end of the connecting rod, and the bearing can roll along the surface of the rear bracket assembly or the front bracket assembly.

[0008] As a further improvement of the present invention, a connecting piece is further provided, which is fixedly mounted on the surface of the rear bracket assembly or the front bracket assembly, and the bearing can be in close contact with and roll along the surface of the connecting piece.

[0009] As a further improvement of the present invention, the elastic member is a tension spring, one end of the tension spring is connected to the front bracket assembly or the rear bracket assembly, and the other end of the tension spring is connected to the other end of the connecting rod.

[0010] As a further improvement of the present invention, the protrusion structure is inserted into one end surface of the inner groove to form a chamfered inclined surface or an arc surface, and the chamfered cross section or the arc surface contacts the side wall of the inner groove opening.

[0011] As a further improvement of the present invention, a handle is provided at the end of the pull cord exposed outside the lower end of the display screen.

[0012] As a further improvement of the present invention, a cross-connecting member is further provided, which includes a first cross-connecting rod and a second cross-connecting rod, wherein the first cross-connecting rod and the second cross-connecting rod are hingedly connected to form a scissors structure, one end of the first cross-connecting rod is hinged to the side wall of the front bracket assembly, and the other end of the first cross-connecting rod is hinged to the rear bracket assembly at a set distance that can be slid longitudinally, one end of the second cross-connecting rod is hinged to the side wall of the rear bracket assembly, and the other end of the first cross-connecting rod is hinged to the front bracket assembly at a set distance that can be slid longitudinally.

[0013] As a further improvement of the present invention, a spring-opening device is further provided, which provides an elastic retaining force to keep the front bracket assembly away from the rear bracket assembly.

[0014] The beneficial effects of the present invention are as follows: the present invention realizes the wall-mounting of the display screen by overlapping the front bracket assembly and the rear bracket assembly front and back, realizing the wall-mounted installation, which occupies a small space, and when the display screen needs to be maintained, only the pull rope needs to be gently pulled, and the front bracket assembly of the display screen bracket can be unlocked from the rear bracket assembly, and the front bracket assembly can be pulled out and away from the rear bracket assembly, thereby increasing the distance between the display screen and the wall, making it convenient to maintain the display screen, easy to use, and also applicable to the installation method of multiple display screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the present invention in an opened state;

[0016] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0017] Figure 3 It is a three-dimensional diagram of the locked state of the present invention;

[0018] Figure 4 It is a front view of the locked state of the present invention;

[0019] Figure 5 It is a right view of the locked state of the present invention;

[0020] Figure 6 A schematic diagram of the unlocking steps of the unlocking structure of the present invention;

[0021] Figure 7 It is the right view of the unlocked state of the present invention. DETAILED DESCRIPTION

[0022] Embodiment: A pull rope 4 unlocking bracket comprises a front bracket assembly 1, a rear bracket assembly 2, a first fastener 5, a second fastener 6 and an unlocking mechanism 3. Taking the actual use direction as a reference, the direction perpendicular to the front of the display screen is assumed to be the front-to-back direction. The front bracket assembly 1 for mounting the display screen can be movably mounted on the front side of the rear bracket assembly 2 along the front-to-back direction. The first fastener 5 is fixedly mounted on the front bracket assembly 1, and the second fastener 6 is fixedly mounted on the rear bracket assembly 2. The first fastener 5 can be engaged and connected with the second fastener 6. The unlocking mechanism 3 comprises a pull rope 4 and a release device. The release device can be movably mounted on one of the front bracket assembly 1 or the rear bracket assembly 2. The movement of the release device can realize the release of the first fastener 5 and the second fastener 6. One end of the pull rope 4 is mounted on the release device, and the other end of the pull rope 4 can be exposed to the outside of the display screen.

[0023] Working principle: When in use, the rear bracket assembly 2 is installed on a mounting body such as a wall or a fixed bracket, and the display screen is installed on the front bracket assembly 1 (generally achieved by a hook). When the TV is in normal use, the first fastener 5 and the second fastener 6 are kept fastened and fixedly connected. When the TV needs to be maintained, it is only necessary to pull the pull rope 4 so that the pull rope 4 drives the release device to operate, thereby achieving the release of the first fastener 5 and the second fastener 6. At this time, the front bracket assembly 1 can move relative to the rear bracket assembly 2 in the front and rear directions to increase the distance between the TV and the wall, thereby achieving maintenance operations on the rear of the TV. After the maintenance is completed, it is only necessary to fasten the first fastener 5 and the second fastener 6 again. This mechanism can realize the easy opening of the TV bracket and the maintenance of the TV. It has a simple structure and is easy to use.

[0024] A socket 7 is formed on the second fastener 6, and the first fastener 5 can be inserted into the socket 7 of the second fastener 6. At least one side wall of the socket 7 is provided with a protruding structure or an inner groove that can be elastically extended and contracted. The side wall of the first fastener 5 is provided with an inner groove that matches the protruding structure on the side wall of the socket 7 of the second fastener 6 or a protruding structure that can be elastically extended and contracted that matches the inner groove on the side wall of the socket 7 of the second fastener 6. The protruding structure can be stuck in the inner groove, and the movement of the release device can force the elastically extendable protruding structure to shrink and exit the inner groove. The convex structure or inner groove on the side wall of the socket 7 of the first fastener 5 and the inner groove or convex structure on the second fastener 6 are used to achieve a snap-on connection or a snap-off connection under the action of elastic force. The structure is simple. When in use, you only need to gently press the TV frame to apply force to the bracket, so that the bracket can be quickly closed and automatically keep the first fastener 5 and the second fastener 6 snap-on connection. In addition, the first fastener 5 and the second fastener 6 can also be matched with a C-shaped groove and a spherical convex structure, or through a pin structure, or through a rotatable hook and groove. These are equivalent replacement structures that can be easily thought of by technical personnel in this field based on this patent.

[0025] The release device includes a connecting rod 8 and an elastic member 9, one end of the connecting rod 8 is hinged on one of the front bracket assembly 1 or the rear bracket assembly 2, the elastic member 9 provides the connecting rod 8 with an elastic retaining force to keep it overlapped with the front bracket assembly 1 or the rear bracket assembly 2, one end of the pull rope 4 is connected to the other end of the connecting rod 8, and the other end of the connecting rod 8 can be tightly against the surface of the rear bracket assembly 2 or the front bracket assembly 1. When the pull rope 4 is pulled, the pull rope 4 drives the connecting rod 8 to rotate around the hinge axis, thereby making the other end of the connecting rod 8 move away from the front bracket assembly 1 and press against the rear bracket assembly 2. Under the action of the pressing force, the release device is released by the external force. When the connecting rod 8 is perpendicular to the front bracket assembly 1, it realizes the open state with the maximum distance between the front bracket assembly 1 and the rear bracket assembly 2. After the front bracket assembly 1 and the rear bracket assembly 2 are unlocked and released, under the action of the elastic member 9, the connecting rod 8 automatically reverses and keeps the front bracket assembly 1 or the rear bracket assembly 2 in a coincident state, so that the front bracket assembly 1 and the rear bracket assembly 2 can be smoothly folded and buckled, preventing the front bracket assembly 1 and the rear bracket assembly 2 from interfering with each other when folding. The structure is simple and easy to operate. In addition, the pull rope 4 can be wound around the rotating shaft, a gear is set on the rotating shaft, the gear is connected to the screw rod, the screw rod is screwed to the nut on the rear bracket assembly 2, or it can be realized by bevel matching, etc. This is an equivalent replacement structure that a technician in this field can easily think of after seeing this patent.

[0026] A bearing 10 is also provided, which is rotatably mounted on the other end of the connecting rod 8, and the bearing 10 can roll along the surface of the rear bracket assembly 2 or the front bracket assembly 1. The bearing 10 is rolled to achieve guidance, while reducing friction resistance, so that the front and rear brackets are opened.

[0027] A connecting piece 11 is also provided, and the connecting piece 11 is fixedly mounted on the surface of the rear support assembly 2 or the front support assembly 1 , and the bearing 10 can be in close contact with and roll along the surface of the connecting piece 11 .

[0028] The elastic member 9 is a tension spring, one end of which is connected to the front bracket assembly 1 or the rear bracket assembly 2, and the other end of which is connected to the other end of the connecting rod 8. Through the tension of the tension spring, the connecting rod 8 is automatically reset after the front and rear brackets are opened, avoiding interference when the front bracket assembly 1 and the rear bracket assembly 2 are buckled and connected. The structure is simple and easy to operate. In addition to the tension spring, it can also be a compression spring, the two ends of which are tightly pressed between the front bracket assembly 1 and the rear bracket assembly, and it can also be a torsion spring arranged on the hinge shaft of the cross-connecting member, etc. After the device pulls the pull rope 4 to open the release device between the front bracket assembly 1 and the rear bracket assembly 2, the front bracket assembly 1 can automatically pop open. After the pull rope 4 is released, the reset device returns the parts to the original position, avoiding manual pulling. The structure is simple and easy to use.

[0029] The protrusion structure is inserted into the inner groove to form a chamfered inclined surface or arc surface, and the chamfered cross section or arc surface contacts the side wall of the inner groove opening. The inclined surface or arc surface plays a guiding role to avoid jamming and achieve unfastening.

[0030] The end of the pull cord 4 exposed outside the lower end of the display screen is provided with a handle 12. It can be a ring structure or a handle structure.

[0031] A cross-connecting member is also provided, which includes a first cross-connecting rod 13 and a second cross-connecting rod 14, wherein the first cross-connecting rod 13 and the second cross-connecting rod 14 are hingedly connected to form a scissors structure, one end of the first cross-connecting rod is hinged to the side wall of the front bracket assembly 1, and the other end of the first cross-connecting rod can be hinged to the rear bracket assembly 2 along the longitudinal direction for a set distance, one end of the second cross-connecting rod is hinged to the side wall of the rear bracket assembly 2, and the other end of the first cross-connecting rod can be hinged to the front bracket assembly 1 along the longitudinal direction for a set distance. The scissors structure is formed by the first cross-connecting rod and the second cross-connecting rod to adjust the distance between the front bracket assembly 1 and the rear bracket assembly 2. The structure adopts an overlap design concept to make the display screen closer to the wall and the screen closer to the wall. In addition, a connecting rod 8 with a retractable length can be set on the rear bracket assembly 2 to adjust the distance between the front bracket assembly 1 and the rear bracket assembly 2, or a multi-link 8 articulated structure, such as a parallel four-link 8 structure, etc., is used. The cross-connecting members are preferably two groups, distributed on both sides of the front bracket assembly 1 and the rear bracket assembly 2, and the first cross-connecting rods and At least one of the second cross-connecting rods is fixedly connected by a fixed connecting rod 15, and damping devices are provided at the hinge positions of the first cross-connecting rod and the second cross-connecting rod, as well as at the hinge positions of the first and second cross-connecting rods at both ends and the front bracket assembly 1 and the rear bracket assembly 2. The two groups of cross-connecting parts achieve synchronous movement through the fixed connecting rod to ensure smooth opening and closing of the display screen. The damping device is also used to achieve greater friction when the various hinged parts rotate relative to each other, so that the display screen can maintain a stable staying state at any position. The damping device can be achieved by clamping a plastic gasket.

[0032] A spring-opening device is also provided, and the spring-opening device provides an elastic holding force for the front bracket assembly 1 to be away from the rear bracket assembly 2. The spring-opening device can be implemented as a spring installed between the front bracket assembly 1 and the rear bracket assembly 2, such as a compression spring whose two ends are tightly pressed against the compression spring between the front bracket assembly 1 and the rear bracket assembly, a torsion spring arranged on the hinge shaft of the cross-connecting member, etc. After the pull rope 4 is pulled to open the release device between the front bracket assembly 1 and the rear bracket assembly 2, the front bracket assembly 1 can automatically spring open, avoiding manual pulling, and has a simple structure and is easy to use.

Claims

1. A pull cord unlocking bracket, characterized in that: The invention comprises a front bracket assembly (1), a rear bracket assembly (2), a first fastener (5), a second fastener (6) and an unlocking mechanism (3), wherein the direction perpendicular to the front of the display screen is assumed to be the front-to-back direction based on the actual use direction, the front bracket assembly for mounting the display screen can be mounted on the front side of the rear bracket assembly movably along the front-to-back direction, the first fastener is fixedly mounted on the front bracket assembly, the second fastener is fixedly mounted on the rear bracket assembly, the first fastener can be fastened and connected with the second fastener, the unlocking mechanism comprises a pull rope (4) and a release device, the release device The buckle device can be movably installed on one of the front bracket assembly or the rear bracket assembly, the movement of the release device can realize the release of the first buckle and the second buckle, one end of the pull rope is installed on the release device, and the other end of the pull rope can be exposed outside the display screen, a socket (7) is formed on the second buckle, the first buckle can be inserted into the socket of the second buckle, at least one side wall of the socket is provided with a convex structure or an inner groove that can be elastically retracted, and the side wall of the first buckle is provided with an inner groove that matches the convex structure on the side wall of the second buckle socket or a groove on the side wall of the second buckle socket. The inner groove is matched with an elastically retractable protruding structure, the protruding structure can be stuck in the inner groove, and the movement of the release device can force the elastically retractable protruding structure to shrink and exit the inner groove. The release device includes a connecting rod (8) and an elastic member (9), one end of the connecting rod is hinged on one of the front bracket assembly or the rear bracket assembly, the elastic member provides the connecting rod with an elastic retaining force to keep it overlapped with the front bracket assembly or the rear bracket assembly, one end of the pull rope is connected to the other end of the connecting rod, and the other end of the connecting rod can press against the rear bracket assembly or the front bracket. The pull rope is pulled on the surface of the component, and the pull rope drives the connecting rod to rotate around the hinge axis, so that the other end of the connecting rod moves away from the front bracket assembly and presses against the rear bracket assembly. Under the action of the pressing force, the release device is released by the external force. When the connecting rod is perpendicular to the front bracket assembly, it realizes the open state with the maximum distance between the front bracket assembly and the rear bracket assembly. After the front bracket assembly and the rear bracket assembly are unlocked and released, under the action of the elastic member, the connecting rod automatically reverses and keeps in an overlapping state with the front bracket assembly or the rear bracket assembly, so that the front bracket assembly and the rear bracket assembly can be smoothly folded and buckled.

2. The pull cord unlocking bracket according to claim 1, characterized in that: A bearing (10) is also provided, which is rotatably mounted on the other end of the connecting rod and can roll along the surface of the rear bracket assembly or the front bracket assembly.

3. The pull cord unlocking bracket according to claim 1, characterized in that: A connecting piece (11) is also provided, and the connecting piece is fixedly mounted on the surface of the rear support assembly or the front support assembly, and the bearing can be in close contact with and roll along the surface of the connecting piece.

4. The pull cord unlocking bracket according to claim 1, characterized in that: The elastic member is a tension spring, one end of which is connected to the front bracket assembly or the rear bracket assembly, and the other end of the tension spring is connected to the other end of the connecting rod.

5. The pull cord unlocking bracket according to claim 1, characterized in that: The protruding structure is inserted into one end surface of the inner groove to form a chamfered inclined surface or an arc surface, and the chamfered cross section or the arc surface contacts the side wall of the inner groove opening.

6. The pull cord unlocking bracket according to claim 1, characterized in that: The end of the pull rope exposed outside the lower end of the display screen is provided with a handle (12).

7. The pull cord unlocking bracket according to claim 1, characterized in that: A cross-connecting member is also provided, the cross-connecting member includes a first cross-connecting rod (13) and a second cross-connecting rod (14), wherein the first cross-connecting rod and the second cross-connecting rod are hingedly connected to form a scissor structure, one end of the first cross-connecting rod is hingedly connected to the side wall of the front bracket assembly, and the other end of the first cross-connecting rod is hingedly connected to the rear bracket assembly for a set distance in the longitudinal direction, one end of the second cross-connecting rod is hingedly connected to the side wall of the rear bracket assembly, and the other end of the first cross-connecting rod is hingedly connected to the front bracket assembly for a set distance in the longitudinal direction.

8. The pull cord unlocking bracket according to claim 1, characterized in that: A spring-opening device is also provided, which provides an elastic retaining force for the front bracket assembly to be away from the rear bracket assembly.

Images