Self-locking television support front arm

Abstract

The utility model discloses a self-locking television support front arm which comprises a first front arm rod, a telescopic cavity is formed in the first front arm rod, an electric push rod is installed in the telescopic cavity, an output shaft of the electric push rod is connected with a second front arm rod, and the end of the second front arm rod penetrates out of the side wall of the first front arm rod. A third front arm rod is rotationally installed on the side wall, away from the first front arm rod, of the second front arm rod, a driving mechanism is arranged on one side of the second front arm rod, and a locking mechanism is arranged on the other side of the second front arm rod. According to the self-locking television support front arm, the second front arm rod and the third front arm rod are arranged, the driving motor is used for driving the third front arm rod to rotate on the second front arm rod, a television body connected with the third front arm rod can rotate longitudinally, and then the pitching angle of the television body can be adjusted; and the application range of the device is expanded to meet the use requirements of different crowds.

Description

Technical Field

[0001] The utility model relates to the technical field of television brackets, in particular to a self-locking front arm of a television bracket. Background Art

[0002] Televisions have become a household choice for thousands of households in modern times. There are many ways to install televisions, which can be divided into wall-mounted and floor-standing types. Generally, household televisions can be installed by hanging them directly on a preset bracket on the wall. However, after such installation, the TV cannot be adjusted and cannot meet everyone's preferences.

[0003] The utility model patent with publication number: CN208719780U discloses a TV stand, including a stand adjustment mechanism and a stand arm connected to the stand adjustment mechanism, wherein the stand adjustment mechanism includes a panel connected to the TV display, a hanging plate connected to the panel and used for angle correction of the TV display, and a rotating plate connected to the hanging plate and used for pitch adjustment of the TV display, wherein the rotating plate is connected to the TV stand arm, and at the same time, a rotating device is provided between the panel and the hanging plate so that the panel rotates relative to the hanging plate, thereby driving the TV display to rotate for angle correction, and at the same time, an angle adjustment device is provided between the hanging plate and the rotating plate so that the hanging plate can move forward and backward relative to the rotating plate to adjust the pitch angle of the TV display.

[0004] However, there are still certain shortcomings in the above technical solution: the front and rear arms of the above technical solution achieve the effect of rotational connection through round tube riveting, but the front and rear arms can only rotate in the horizontal direction to adjust the distance between the TV and the wall, and cannot be adjusted in other directions, resulting in limited use of the device. Utility Model Content

[0005] The purpose of the utility model is to provide a self-locking front arm of a TV stand to solve the problem that the front and rear arms proposed in the above-mentioned background technology can only rotate in the horizontal direction to adjust the distance between the TV and the wall, but cannot adjust in other directions, resulting in a limited use range of the device.

[0006] To achieve the above object, the utility model provides the following technical solutions: a self-locking front arm of a TV stand, comprising a front arm rod,

[0007] A telescopic cavity is provided inside the front arm bar one, and an electric push rod is installed in the telescopic cavity, the output shaft of the electric push rod is connected to the front arm bar two, and the end of the front arm bar two passes through the side wall of the front arm bar one, and the front arm bar three is rotatably installed on the side wall of the front arm bar two away from the front arm bar one, a driving mechanism is provided on one side of the front arm bar two, and the driving mechanism is used to drive the rotation of the front arm bar three, and a locking mechanism is provided on the other side of the front arm bar two, and the locking mechanism is used to lock the position of the front arm bar three after rotation.

[0008] By adopting the above technical solution, when in use, the electric push rod in the telescopic cavity can drive the end of the front arm bar 2 to move in the telescopic cavity, so as to facilitate the telescopic movement between the front arm bar 2 and the front arm bar 1. The driving mechanism on the front arm bar 2 can drive the front arm bar 3 to rotate on the front arm bar 2, so that the TV body connected to the front arm bar 3 can adjust the pitch angle. After the pitch angle is adjusted, the angle of the front arm bar 3 on the front arm bar 2 can be locked by the locking mechanism to avoid displacement.

[0009] As a further solution of the utility model: a vertical connecting groove 1 is provided on the side wall of the front arm bar 1 away from the front arm bar 3, and a vertical connecting groove 2 is provided on the side wall of the front arm bar 3 away from the front arm bar 1.

[0010] By adopting the above technical solution, when in use, a rivet nail or a connecting bolt can be inserted into the connecting groove 1 of the front arm rod 1 to achieve connection with the rear arm, and a rivet nail or a connecting bolt can be inserted into the connecting groove 2 of the front arm rod 3 to achieve connection with the back mounting bracket of the TV body.

[0011] As a further solution of the utility model: the end of the second front arm rod inserted into the telescopic cavity is installed with an anti-slip ring, and the diameter of the anti-slip ring is larger than the diameter of the opening on one side wall of the front arm rod.

[0012] By adopting the above technical solution, when in use, the electric push rod drives the extension and retraction of the front arm rod 2 to adjust the telescopic distance of the entire front and rear arms, and the design of the anti-detachment ring can prevent the front arm rod 2 from detaching from the telescopic cavity, thereby improving the protection effect of the front arm rod 2.

[0013] As a further solution of the utility model: the driving mechanism includes a driving motor, the driving motor is installed on the side wall of the front arm rod two, and the output shaft of the driving motor is connected to the rotating shaft of the front arm rod three.

[0014] By adopting the above technical solution, when in use, the driving motor can drive the connecting slot 2 to drive the front arm rod 3 to rotate, thereby adjusting the pitch angle of the TV body.

[0015] As a further solution of the utility model: the locking mechanism includes a driving rod, which is rotatably mounted on the side wall of the front arm rod 2 away from the driving motor through a rotating connecting piece, and a limiting rod is installed on the side of the driving rod close to the side wall of the front arm rod 2, and one end of a reset spring is connected to the other side of the driving rod close to the side wall of the front arm rod 2, and the other end of the reset spring is connected to the surface of the front arm rod 2.

[0016] By adopting the above technical solution, when in use, it is necessary to rotate the front arm rod three, and by pressing down the driving rod, one side of the connection between the driving rod and the reset spring is close to the front arm rod two, and then one side of the limit rod is rotated out, and the end of the limit rod is disengaged from the limit groove to release the lock, and then rotate and release the rotation, and use the reset spring to reset the driving rod and the limit rod, and then the limit rod is inserted into the limit groove to lock the front arm rod three.

[0017] As a further solution of the utility model: a plurality of limiting grooves are provided on the side wall of the front arm rod 3 close to the driving rod, and the limiting grooves are distributed in a ring shape, and the limiting grooves match the limiting rod.

[0018] By adopting the above technical solution, when in use, the design of multiple limit slots makes it convenient for the limit rod to be inserted into the corresponding limit slot for locking when the front arm rod is rotated to different angles.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the front arm of the self-locking TV stand is

[0020] A front arm bar 2 and a front arm bar 3 are provided, and a driving motor is used to drive the front arm bar 3 to rotate on the front arm bar 2, so that the TV body connected to the front arm bar 3 can be longitudinally rotated, thereby realizing the pitch angle adjustment of the TV body, so that the application range of the device is expanded to meet the use needs of different groups of people;

[0021] In addition, the front arm of the self-locking TV stand is also provided with a driving rod and a return spring. Before the driving motor drives the front arm rod three to rotate, it is necessary to squeeze the side of the driving rod close to the return spring close to the front arm rod two, so that the limit rod is rotated out of the limit groove. After the locking state is released, the driving motor is started to drive the front arm rod three to rotate. After the rotation is completed, the driving rod is loosened and driven to rotate by the return spring, so that the limit rod is inserted into the corresponding limit groove to achieve an automatic locking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0023] Figure 2 It is a schematic diagram of a top view and a cross-sectional structure of the front arm bar 2 and the front arm bar 3 of the utility model;

[0024] Figure 3 It is a schematic diagram of the three rear views of the front arm rod of the utility model.

[0025] In the figure: 1. front arm rod 1; 101. telescopic chamber; 102. connecting groove 1; 2. electric push rod; 3. front arm rod 2; 301. anti-slip ring; 4. front arm rod 3; 401. connecting groove 2; 402. rotating shaft; 403. limiting groove; 5. driving motor; 6. rotating connecting piece; 7. driving rod; 701. limiting rod; 8. reset spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-3 The utility model provides a technical solution: a self-locking front arm of a TV stand, comprising a front arm rod 1,

[0028] A telescopic chamber 101 is opened inside the front arm bar 1, and an electric push rod 2 is installed in the telescopic chamber 101. The output shaft of the electric push rod 2 is connected to the front arm bar 2 3, and the end of the front arm bar 2 3 passes through the side wall of the front arm bar 1. The front arm bar 3 4 is rotatably installed on the side wall of the front arm bar 2 3 away from the front arm bar 1. A driving mechanism is provided on one side of the front arm bar 2 3, and the driving mechanism is used to drive the rotation of the front arm bar 3 4. A locking mechanism is provided on the other side of the front arm bar 2 3, and the locking mechanism is used to lock the position of the front arm bar 3 4 after rotation.

[0029] See also Figure 1 Further, a vertical connection groove 102 is provided on the side wall of the front arm bar 1 away from the front arm bar 3 4, and a vertical connection groove 2 401 is provided on the side wall of the front arm bar 3 4 away from the front arm bar 1;

[0030] Specifically, the front arm rod 1 is rotatably connected to the rear arm of the bracket through the connecting groove 102, and the front arm rod 3 4 is connected to the back mounting frame of the TV through the connecting groove 2 401.

[0031] See also Figure 1 Further, the end of the front arm rod 2 3 inserted into the telescopic cavity 101 is installed with an anti-slip ring 301, and the diameter of the anti-slip ring 301 is larger than the diameter of the opening on the side wall of the front arm rod 1;

[0032] Specifically, a ball bearing may be installed on the outer ring of the anti-slip ring 301 to reduce the friction between the contact surface of the anti-slip ring 301 and the telescopic cavity 101, thereby facilitating the movement of the front arm rod 23.

[0033] See also Figure 1 and Figure 2 , further, the driving mechanism includes a driving motor 5, the driving motor 5 is mounted on the side wall of the front arm bar 2 3, and the output shaft of the driving motor 5 is connected to the rotating shaft 402 of the front arm bar 3 4;

[0034] Specifically, a speed reducer is connected to the output shaft of the driving motor 5 to reduce the rotation speed output by the driving motor 5 .

[0035] See also Figure 2 Furthermore, the locking mechanism includes a driving rod 7, which is rotatably mounted on the side wall of the front arm rod 2 3 away from the driving motor 5 through a rotating connecting piece 6, and a limiting rod 701 is installed on one side of the side wall of the driving rod 7 close to the front arm rod 2 3, and one end of a reset spring 8 is connected to the other side of the side wall of the driving rod 7 close to the front arm rod 2 3, and the other end of the reset spring 8 is connected to the surface of the front arm rod 2 3.

[0036] See also Figure 2 and Figure 3 Further, a plurality of limiting grooves 403 are provided on the side wall of the front arm rod 3 4 close to the driving rod 7, and the limiting grooves 403 are distributed in a ring shape, and the limiting grooves 403 match the limiting rod 701;

[0037] Specifically, the outer wall of the limiting groove 403 is designed to be inclined, so that the limiting rod 701 will not be affected when it rotates away.

[0038] Working principle: when using the front arm of the self-locking TV stand, the front arm rod 1 is connected to the rear arm of the TV stand through the connecting groove 102, so as to facilitate the adjustment of the distance between the TV body and the wall. After the adjustment, when the distance needs to be further adjusted, the electric push rod 2 in the telescopic chamber 101 can drive the front arm rod 2 3 to be extended and retracted to achieve further distance adjustment, and the front arm rod 3 4 can be driven to rotate by the driving motor 5. Before the driving motor 5 drives the front arm rod 3 4 to rotate, it is necessary to squeeze the side of the driving rod 7 close to the reset spring 8 so that the bottom of the limit rod 701 is disengaged from the limit groove 403. After the locking state is released, the driving motor 5 is started to drive the front arm rod 3 4 to rotate. After the rotation is completed, the driving rod 7 is released, and the driving rod 7 is driven to rotate by the reset spring 8 so that the limit rod 701 is inserted into the corresponding limit groove 403 to achieve an automatic locking effect. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0039] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-locking front arm of a TV stand, comprising a front arm rod (1), characterized in that: A telescopic chamber (101) is provided inside the front arm bar one (1), and an electric push rod (2) is installed in the telescopic chamber (101); the output shaft of the electric push rod (2) is connected to the front arm bar two (3), and the end of the front arm bar two (3) passes through the side wall of the front arm bar one (1); the front arm bar three (4) is rotatably installed on the side wall of the front arm bar two (3) away from the front arm bar one (1); a driving mechanism is provided on one side of the front arm bar two (3), and the driving mechanism is used to drive the rotation of the front arm bar three (4); a locking mechanism is provided on the other side of the front arm bar two (3), and the locking mechanism is used to lock the position of the front arm bar three (4) after rotation.

2. The self-locking front arm of a TV stand according to claim 1, characterized in that: A vertical connection groove 1 (102) is provided on the side wall of the front arm bar 1 (1) away from the front arm bar 3 (4), and a vertical connection groove 2 (401) is provided on the side wall of the front arm bar 3 (4) away from the front arm bar 1 (1).

3. The self-locking front arm of a TV stand according to claim 1, characterized in that: The end of the front arm rod 2 (3) inserted into the telescopic cavity (101) is installed with an anti-slip ring (301), and the diameter of the anti-slip ring (301) is larger than the diameter of the opening on the side wall of the front arm rod 1 (1).

4. The self-locking front arm of a TV stand according to claim 1, characterized in that: The driving mechanism comprises a driving motor (5), which is mounted on the side wall of the second front arm rod (3), and the output shaft of the driving motor (5) is connected to the rotating shaft (402) of the third front arm rod (4).

5. The self-locking front arm of a TV stand according to claim 1, characterized in that: The locking mechanism comprises a driving rod (7), the driving rod (7) being rotatably mounted on the side wall of the front arm rod 2 (3) away from the driving motor (5) via a rotating connecting piece (6), and a limiting rod (701) being mounted on one side of the driving rod (7) close to the side wall of the front arm rod 2 (3), and one end of a return spring (8) being connected to the other side of the driving rod (7) close to the side wall of the front arm rod 2 (3), and the other end of the return spring (8) being connected to the surface of the front arm rod 2 (3).

6. The self-locking front arm of a TV stand according to claim 1, characterized in that: A plurality of limiting grooves (403) are provided on the side wall of the front arm rod three (4) close to the driving rod (7), and the limiting grooves (403) are distributed in a ring shape, and the limiting grooves (403) match the limiting rod (701).

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