Three-rod connecting rod rotating structural member

Abstract

The utility model discloses a three-rod connecting rod rotating structural member which comprises a bottom plate, a vertical plate and a rotating structural member body, one end of the top of the bottom plate is fixedly connected with the vertical plate, and the rotating structural member body is arranged at the top end of the vertical plate. The rotating structural part body comprises a rotating supporting frame, a first fixing plate, a second fixing plate, a rotating tension spring, a first axis, a second axis, a first connecting rod, a second connecting rod and a third connecting rod, and the first connecting rod, the second connecting rod and the third connecting rod are arranged at the positions, located at the two ends of the first axis and the second axis, in the rotating supporting frame correspondingly. The utility model provides a three-connecting-rod structure that the support rotates to drive the tension spring and can ensure that the lifting force of the screen is consistent in two angle quadrants in the rotating process, the structure is simple and compact, and the flat design greatly reduces the space occupied by the structure, so that the structure is more compact. And the current appearance design requirement is met, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod lifting mechanisms, in particular to a three-rod connecting rod rotating structural member. Background Technique

[0002] Nowadays, consumers pay more and more attention to the convenience and feeling of using connecting rod structural members. In current similar structures, the arm of the two-rod connecting rod is lifted. The working condition angle of the arm is within the same quadrant. For example, the arm rotates from 45° to 0° (the angles here are just examples, and there are actually various angles). Affected by gravity, during the lifting process of the arm, the connecting rod and the tension spring are driven to balance the required force of the screen. The required force of the screen is proportional to the lifting angle, that is, the requirements for the connecting rod and the tension spring driven by the arm rotating from 45° to 0° are the same;

[0003] The current connecting rod rotating structural member is as Figure 5 shown. The rotation angle of the arm spans two quadrants, that is, the arm rotates from A45° to C(-45°), and B is the horizontal 0°. It is necessary to ensure that the lifting force is consistent. After analysis, the required force from A to B is proportional to the lifting angle, while the required force from B to C is inversely proportional to the lifting angle. Therefore, the current ordinary connecting rod structure cannot meet the customer's needs. For this reason, we propose a three-rod connecting rod rotating structural member. Content of the Utility Model

[0004] The purpose of the utility model is to provide a three-rod connecting rod rotating structural member to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A three-rod connecting rod rotating structural member, including a bottom plate, a vertical plate and a rotating structural member main body. One end of the top of the bottom plate is fixedly connected with a vertical plate, and the top of the vertical plate is provided with a rotating structural member main body. The rotating structural member main body includes a rotating support frame, a first fixing plate, a second fixing plate, a rotating tension spring, a first axis, a second axis, a first connecting rod, a second connecting rod and a third connecting rod. The first connecting rod, the second connecting rod and the third connecting rod are respectively arranged at both ends of the first axis and the second axis inside the rotating support frame. The second connecting rod is located between the first connecting rod and the third connecting rod. Three rotating tension springs are equidistantly fixedly connected to one end of the first connecting rod located at the second axis, and the ends of the rotating tension springs are fixedly connected to the bottom of the inner wall of the rotating support frame.

[0006] Preferably, both ends of the rotary support frame are fixedly connected with a first fixing plate and a second fixing plate respectively. Both ends of the rotary support frame are respectively provided with a first axis center and a second axis center. Between the tops of the first fixing plate and the second fixing plate, the top of the first connecting rod, and the tops of the first axis center and the second axis center, they are fixedly connected with the top of the rotary support frame through a rotary washer and a fixing nut. Between the bottoms of the first fixing plate and the second fixing plate, the bottom of the first connecting rod, and the bottoms of the first axis center and the second axis center, they are fixedly connected with the bottom of the rotary support frame through a rotary washer and a fixing nut.

[0007] Preferably, both ends of the first connecting rod are rotatably connected to the outer sides of the first axis center and the second axis center respectively. One end of the second connecting rod is rotatably connected to the outer side of the second axis center, and the other end of the second connecting rod is connected to the third connecting rod.

[0008] Preferably, a guide groove is formed on the surface of the third connecting rod, and a guide rod is integrally provided on the surface of the second connecting rod. The guide rod is slidably connected in the guide groove in a matching manner.

[0009] Preferably, the diameter of the outer end of the guide rod located outside the guide groove is larger than the diameter of the end of the guide rod located at the second connecting rod.

[0010] Preferably, a mounting plate is installed at the end of the rotary structural member away from the vertical plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model provides a three-link structure in which the bracket rotates to drive a tension spring and can ensure that the lifting force is consistent in two angular quadrants during the rotation of the screen. The structure is simple and compact, and the flat design greatly reduces the space occupied by the structure, meeting the current requirements for the appearance design, and the cost is relatively low. At present, the cost of the structures that can achieve similar functions on the market is more than five times that of this structure, greatly enhancing the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the overall structure of the present utility model;

[0013] Figure 2 is a schematic structural diagram of the main body structure of the structural member of the present utility model;

[0014] Figure 3 is a schematic diagram of the internal structure of the main body of the structural member of the present utility model;

[0015] Figure 4 is a schematic diagram of the internal connection structure of the main body of the structural member of the present utility model;

[0016] Figure 5 is a schematic diagram of the existing connecting rod structure member in the present utility model.

[0017] In the figure: 1. Support base; 2. Self-locking wheel; 3. Support plate; 4. Connecting round rod; 5. Column; 6. Construction table; 7. Through groove; 8. Adjusting plate; 9. Mounting plate; 10. Rotating shaft; 11. Tooth plate; 12. Gear plate; 13. Mounting block; 14. Mounting seat; 15. Driving motor; 16. Limiting groove; 17. Lifting groove; 18. Threaded rod; 19. Driven bevel gear; 20. Servo motor; 21. Driving bevel gear; 22. Telescopic rod; 23. Shock-absorbing spring. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figure 1 , Figure 2 and Figure 3 , the present invention provides a technical solution: a three-bar linkage rotating structural member, including a bottom plate 1, a vertical plate 2 and a rotating structural member main body 3. One end of the top of the bottom plate 1 is fixedly connected to the vertical plate 2, and the top end of the vertical plate 2 is provided with the rotating structural member main body 3. The rotating structural member main body 3 includes a rotating support frame 5, a first fixing plate 6, a second fixing plate 7, a rotating tension spring 8, a first axis 9, a second axis 10, a first connecting rod 11, a second connecting rod 12 and a third connecting rod 13. The rotating support frame 5 is internally provided with the first connecting rod 11, the second connecting rod 12 and the third connecting rod 13 at both ends of the first axis 9 and the second axis 10 respectively. The second connecting rod 12 is located between the first connecting rod 11 and the third connecting rod 13. Three rotating tension springs 8 are equidistantly fixedly connected to one end of the first connecting rod 11 located at the second axis 10, and the ends of the rotating tension springs 8 are fixedly connected to the bottom of the inner wall of the rotating support frame 5.

[0020] It should be noted that by adding a second connecting rod 12 as a transfer connecting rod on the traditional basis and making a cosine function guide groove 14 on the third connecting rod 13, when the arm rotates, one end of the second connecting rod 12 slides in the guide groove 14 of the third connecting rod 13 by pin embedding, so as to meet the required force during the entire rotation process of the arm, ensure that the lifting force of the screen is consistent in two angular quadrants during the rotation process, and the flat design greatly reduces the structural occupied space, meets the current requirements for the appearance design, and has a lower cost.

[0021] Please refer to Figure 3 and Figure 4, both ends of the rotating support frame 5 are fixedly connected with a first fixing plate 6 and a second fixing plate 7 respectively. Both ends of the rotating support frame 5 are respectively provided with a first axis 9 and a second axis 10. Between the tops of the first fixing plate 6 and the second fixing plate 7, the top of the first connecting rod 11, and the tops of the first axis 9 and the second axis 10, they are fixedly connected to the top of the rotating support frame 5 through a rotating washer and a fixing nut. Between the bottoms of the first fixing plate 6 and the second fixing plate 7, the bottom of the first connecting rod 11, and the bottoms of the first axis 9 and the second axis 10, they are fixedly connected to the bottom of the rotating support frame 5 through a rotating washer and a fixing nut.

[0022] It should be noted that the main body of the rotating structural member 3 is designed in a flattened shape as a whole, greatly reducing the space occupied by the structure. The structure is simple and compact, meeting the current requirements for appearance design, and with relatively low cost.

[0023] Please refer to Figure 4 , both ends of the first connecting rod 11 are rotatably connected to the outside of the first axis 9 and the second axis 10 respectively. One end of the second connecting rod 12 is rotatably connected to the outside of the second axis 10, and the other end of the second connecting rod 12 is connected to the third connecting rod 13.

[0024] It should be noted that the first connecting rod 11 is fixed to both ends of the arm and can rotate freely. One end of the second connecting rod 12 is fixed to the arm, and the other end is fixed to the third connecting rod 13 and can rotate freely. The third connecting rod 13 is fixed to both ends of the arm and can rotate freely.

[0025] Please refer to Figure 4 , a guide groove 14 is formed on the surface of the third connecting rod 13, and a guide rod 15 is integrally provided on the surface of the second connecting rod 12. The guide rod 15 is slidably connected to the guide groove 14 in a matching manner.

[0026] It should be noted that for the rotation of the arm with a common double-link structure, by changing the distance between the connecting rods to control the deformation length of the tension spring to meet the required force at different angles. The force required for the common double-link screen is proportional to the lifting angle. To meet the customer's requirements, the required force during the rotation of the arm changes similar to a cosine function graph. Therefore, it is necessary that the distance between the common double-links changes according to the cosine function graph when the arm rotates. By adding a second connecting rod 12 as a transfer connecting rod on the traditional basis and making a cosine function guide groove 14 on the third connecting rod 13, when the arm rotates, one end of the second connecting rod 12 slides in the guide groove 14 of the third connecting rod 13 to meet the required force during the entire rotation process of the arm.

[0027] Please refer to Figure 4 , the diameter of the outer end of the guide rod 15 located outside the guide groove 14 is larger than the diameter of the end of the guide rod 15 located at one end of the second connecting rod 12.

[0028] It should be noted that the diameter of the end of the guide rod 15 is larger than the diameter of the guide rod 15 at one end of the second connecting rod 12, so that the guide rod 15 can move stably inside the guide groove 14, preventing the guide rod 15 from detaching from the guide groove 14.

[0029] Please refer to Figure 1 , and a mounting plate 4 is installed at one end of the rotating structural member body 3 away from the vertical plate 2.

[0030] It should be noted that the mounting plate 4 provided at the end of the rotating structural member body 3 is used to connect the screen that needs to be adjusted.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0033] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-bar connecting rod rotating structure, comprising a bottom plate (1), a vertical plate (2) and a rotating structure body (3), wherein one end of the top of the bottom plate (1) is fixedly connected to the vertical plate (2), and the top of the vertical plate (2) is provided with the rotating structure body (3), characterized in that: The rotating structural component body (3) comprises a rotating support frame (5), a first fixed plate (6), a second fixed plate (7), a rotating tension spring (8), a first axis (9), a second axis (10), a first connecting rod (11), a second connecting rod (12) and a third connecting rod (13); the first connecting rod (11), the second connecting rod (12) and the third connecting rod (13) are respectively arranged at two ends of the first axis (9) and the second axis (10) in the rotating support frame (5); the second connecting rod (12) is located between the first connecting rod (11) and the third connecting rod (13); one end of the first connecting rod (11) located on the second axis (10) is fixedly connected with three rotating tension springs (8) at equal distances, and the end of the rotating tension spring (8) is fixedly connected to the bottom of the inner wall of the rotating support frame (5).

2. A three-bar connecting rod rotating structure according to claim 1, characterized in that: The two ends of the rotating support frame (5) are respectively fixedly connected with a first fixed plate (6) and a second fixed plate (7), and the two ends of the rotating support frame (5) are respectively provided with a first axis (9) and a second axis (10). The top ends of the first fixed plate (6) and the second fixed plate (7), the top end of the first connecting rod (11), and the top ends of the first axis (9) and the second axis (10) are fixedly connected to the top end of the rotating support frame (5) through a rotating washer and a fixing nut. The bottom ends of the first fixed plate (6) and the second fixed plate (7), the bottom end of the first connecting rod (11), and the bottom ends of the first axis (9) and the second axis (10) are fixedly connected to the bottom end of the rotating support frame (5) through a rotating washer and a fixing nut.

3. The three-bar connecting rod rotating structure according to claim 1, characterized in that: The two ends of the first connecting rod (11) are rotatably connected to the outside of the first axis (9) and the second axis (10), respectively; one end of the second connecting rod (12) is rotatably connected to the outside of the second axis (10), and the other end of the second connecting rod (12) is connected to the third connecting rod (13).

4. A three-bar connecting rod rotating structure according to claim 3, characterized in that: A guide groove (14) is provided on the surface of the third connecting rod (13), and a guide rod (15) is integrally provided on the surface of the second connecting rod (12), and the guide rod (15) is slidably connected in the guide groove (14).

5. A three-bar connecting rod rotating structure according to claim 4, characterized in that: The diameter of the end of the guide rod (15) located outside the guide groove (14) is larger than the diameter of the end of the guide rod (15) located at the second connecting rod (12).

6. The three-bar connecting rod rotating structure according to claim 1, characterized in that: A mounting plate (4) is mounted on one end of the rotating structure body (3) away from the vertical plate (2).

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