Power-saving fixing device of torsion spring

Abstract

The utility model discloses torsional spring labor -saving fixing device, specifically relates to screen pivot ware technical field, including pivot, the single cell support frame is rotatably equipped with in the pivot outside, the torsional spring limit seat is rotatably equipped with in the single cell support frame one side and located pivot outside, the torsional spring body is rotatably equipped with in the torsional spring limit seat one side and located pivot outside, the torsional spring sliding groove is fixedly equipped with in the torsional spring body one side and located pivot outside, E type ring is connected with in the torsional spring sliding groove one side and located pivot outside, the screen end support frame is connected with in the pivot one end outside, through the setting of this structure is applicable to the scene that the user handheld electronic device and swings, provides stable and easy opening function simultaneously, even if is slightly swung after opening, the screen angle is not easy to change.

Description

Technical Field

[0001] This utility model relates to the field of screen pivot technology, and more specifically, to a torsion spring force-saving fixing device. Background Technology

[0002] Some handheld electronic devices generally have a host system base and an openable LCD screen cover. The host system base and the LCD screen cover are usually connected by a torsion spring force-saving fixing device. With the connection of the torsion spring force-saving fixing device, the LCD screen of the cover can be opened by using the torsion spring force-saving fixing device as the action axis, and the operation program of inputting commands can be performed through the control area of ​​the base system.

[0003] However, some torsion spring-loaded locking devices cannot provide a stable and easy opening function when the user holds the electronic device and shakes it. Furthermore, during use, slight hand tremors can cause the screen angle to change or even close, thus affecting the overall user experience of the electronic product.

[0004] Therefore, a torsion spring force-saving fixing device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a torsion spring force-saving fixing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a torsion spring force-saving fixing device, including a rotating shaft, a unit cell support frame rotatably sleeved on the outer side of the rotating shaft, a torsion spring limiting seat rotatably sleeved and connected on the outer side of the rotating shaft and on one side of the unit cell support frame, a torsion spring body movably sleeved on the outer side of the rotating shaft and on one side of the torsion spring limiting seat, a torsion spring sliding groove limited and fixedly sleeved on the outer side of the rotating shaft and on one side of the torsion spring body, an E-ring limited and connected on the outer side of the rotating shaft and on one side of the torsion spring sliding groove, and a screen end support frame engagingly connected to one end of the rotating shaft.

[0007] Preferably, the unit cell support frame includes a connecting bearing cylinder, a support plate, and a connecting block. The connecting bearing cylinder is rotatably sleeved and connected to the outside of the rotating shaft. One end of the connecting bearing cylinder is fixedly connected to a support plate that is perpendicular to the connecting bearing cylinder. A connecting block is fixedly welded to one side of the support plate.

[0008] Preferably, the torsion spring limiting seat includes a collar, a limiting strip, and a clamping protrusion. The collar is rotatably sleeved on the outside of the rotating shaft, and a limiting strip is fixedly connected to both ends of the collar. A clamping protrusion is fixedly provided on the side surface of the two limiting strips that are close to each other.

[0009] Preferably, rubber pads are fixedly provided on the opposing surfaces of the two clamping protrusions, and the surfaces of the two rubber pads are additionally provided with rough texture.

[0010] Preferably, the torsion spring body includes a torsion spring body, a first connecting end, and a second connecting end. The torsion spring body is movably sleeved and connected to the outside of the rotating shaft. The first connecting end is connected to one end of the torsion spring body near the torsion spring limiting seat, and the second connecting end is connected to one end of the torsion spring body near the torsion spring sliding groove.

[0011] Preferably, the torsion spring sliding groove includes a connecting body and an annular protrusion. The connecting body is rotatably sleeved on the outside of the rotating shaft, and the annular protrusion is fixedly connected to the outer wall of the connecting body.

[0012] Preferably, a protruding card is fixedly provided on the E-ring, and the protruding card is engaged with a slot opened on the outer wall of the rotating shaft.

[0013] Preferably, a limiting ring block is fixedly provided on the outer side of the rotating shaft, and the limiting ring block is located on the side of the unit cell support frame away from the torsion spring limiting seat.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] Compared with existing technologies, this torsion spring force-saving fixing device reduces stress concentration and the occurrence of additional displacement of the torsion spring body by shortening the extension length of the torsion spring body, thereby eliminating abnormal noise. The structure is suitable for scenarios where users hold and shake electronic devices, while providing a stable and easy opening function. Even if it is shaken slightly after opening, the screen angle is not easily changed. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a partial first-view three-dimensional structural diagram of the present invention.

[0018] Figure 3 This is a partial second-view three-dimensional structural diagram of the present invention.

[0019] Figure 4 This is a partial third-view three-dimensional structural diagram of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of the present invention viewed from below.

[0021] The attached figures are labeled as follows: 1. Rotating shaft; 2. Unit cell support frame; 21. Connecting bearing cylinder; 22. Support piece; 23. Connecting block; 3. Torsion spring limiting seat; 31. Collar; 32. Limiting strip; 33. Clamping protrusion; 4. Torsion spring body; 41. Torsion spring main body; 42. First connecting end; 43. Second connecting end; 5. Torsion spring sliding groove; 51. Connecting main body; 52. Annular protrusion; 6. E-ring; 61. Protrusion card; 7. Limiting stop ring block; 8. Screen end support frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] As attached Figures 1 to 4 The torsion spring force-saving fixing device shown includes a rotating shaft 1. A unit cell support frame 2 is rotatably sleeved on the outside of the rotating shaft 1. A torsion spring limiting seat 3 is rotatably sleeved and connected on the outside of the rotating shaft 1 and on one side of the unit cell support frame 2. A limiting stop ring block 7 is fixedly installed on the outside of the rotating shaft 1, and the limiting stop ring block 7 is located on the side of the unit cell support frame 2 away from the torsion spring limiting seat 3. A torsion spring body 4 is movably sleeved on the outside of the rotating shaft 1 and on one side of the torsion spring limiting seat 3. A torsion spring sliding groove 5 is limited and fixedly sleeved on the outside of the rotating shaft 1 and on one side of the torsion spring body 4. A limiting connection is provided on the outside of the rotating shaft 1 and on one side of the torsion spring sliding groove 5. E-ring 6, with a protruding card 61 fixedly installed on it, and the protruding card 61 engaging with the slot on the outer wall of the rotating shaft 1. After the E-ring 6 is engaged with the slot on the outer wall of the rotating shaft 1 by the protruding card 61, the E-ring 6 and the rotating shaft 1 have a certain limiting and fixing effect. The E-ring 6 set on one side of the torsion spring sliding groove 5 also plays a certain limiting role for the torsion spring sliding groove 5, preventing the torsion spring sliding groove 5, which is movably connected to the outside of the rotating shaft 1, from disengaging from the outside of the rotating shaft 1. Finally, a screen end support 8 is engaged and connected to the outside of one end of the rotating shaft 1.

[0025] Specifically, through the cooperation of the torsion spring body 4 and the torsion spring sliding groove 5, as the screen opening angle on the screen end support 8 decreases from 35° to 0°, the torsion spring body 4 releases a rebound force, making the opening action easier and less strenuous. When the screen set on the screen end support 8 continues to unfold from 90° to 135°, the torsion spring body 4 generates a reverse contraction force, at which time the torque increases, thereby enhancing the support capacity for the weight of the screen on the screen end support 8. This structure is suitable for scenarios where users hold electronic devices and shake them, while providing a stable and easy opening function. Even if it is shaken slightly after opening, the screen angle is not easily changed.

[0026] Example 2

[0027] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0028] In a preferred embodiment, the unit cell support frame 2 includes a connecting bearing sleeve 21, a receiving plate 22, and a connecting block 23. The connecting bearing sleeve 21 is rotatably sleeved on the outside of the rotating shaft 1. One end of the connecting bearing sleeve 21 is fixedly connected to a receiving plate 22 that is perpendicularly distributed to the connecting bearing sleeve 21. A connecting block 23 is fixedly welded to one side of the receiving plate 22. The torsion spring limiting seat 3 includes a collar 31, a limiting strip 32, and a clamping protrusion 33. The collar 31 is rotatably sleeved on the outside of the rotating shaft 1, and a limiting strip 32 is fixedly connected to both ends of the collar 31. A clamping protrusion 33 is fixedly provided on the surface of the two limiting strips 32 that are close to each other. Rubber pads are fixedly provided on the opposite surfaces of the protrusions 33, and the surfaces of the two rubber pads are provided with rough texture. The rubber pads can provide a certain degree of protection when the first connecting end 42 is clamped at the position of the protrusions 33, so as to avoid damage to the protrusions 33 when clamping the first connecting end 42. At the same time, it increases the friction between the clamping protrusions 33 and the first connecting end 42, as well as the stability during clamping. The connecting block 23 is clamped between the two limiting strips 32, and the annular collar 31 has a certain elasticity, which allows the two limiting strips 32 to clamp the connecting block 23 connected to one end of the receiving piece 22.

[0029] In a preferred embodiment, the torsion spring body 4 includes a torsion spring body 41, a first connecting end 42, and a second connecting end 43. The torsion spring body 41 is movably sleeved and connected to the outside of the rotating shaft 1. The first connecting end 42 is connected to one end of the torsion spring body 41 near the torsion spring limiting seat 3, and the second connecting end 43 is connected to one end of the torsion spring body 41 near the torsion spring sliding groove 5. The second connecting end 43 is inserted into a groove on the surface of the annular protrusion 52 during actual use. The first connecting end 42, connected to one end of the torsion spring body 41, is clamped between two clamping protrusions 33 on the torsion spring limiting seat 3. The torsion spring sliding groove 5 includes a connecting body 51 and an annular protrusion 52. The connecting body 51 is rotatably sleeved and connected to the outside of the rotating shaft 1. An annular protrusion 52 is fixedly connected to the outer wall of the main body 51, and the second connecting end 43 connected to the other end of the torsion spring body 41 is tightly abutted against the outer wall of the annular protrusion 52. When the screen on the screen end support 8 rotates, the screen end support 8 drives the rotating shaft 1 to rotate. The rotating shaft 1 then causes the torsion spring sliding groove 5 to rotate through the limiting and fixed connection between it and the torsion spring sliding groove 5. As the torsion spring sliding groove 5 rotates, the annular protrusion 52 on the torsion spring sliding groove 5 also rotates. The rotating annular protrusion 52 then squeezes the second connecting end 43 on the torsion spring body 4 to rotate, thereby increasing the overall torque of the torsion spring body 4. This, in turn, acts on the screen on the screen end support 8 to provide stable support for the screen.

[0030] The working process of this utility model is as follows: First, through the cooperation of the torsion spring body 4 and the torsion spring sliding groove 5, during the process of the screen opening angle on the screen end support 8 decreasing from 35° to 0°, it will drive the rotating shaft 1 and the torsion spring sliding groove 5, which is fixedly connected to one end of the rotating shaft 1, to rotate through the engagement connection with the rotating shaft 1. Then, through the connection of the annular protrusion 52 on the torsion spring sliding groove 5 and the second connecting end 43 slidably connected in the sliding groove on the surface of the annular protrusion 52, the second connecting end 43 on one end of the torsion spring body 4 rotates. When the screen rotates, the torsion spring body 4 releases its rebound force, making the opening action easier and less strenuous. When the screen set on the screen end support 8 continues to unfold from 90° to 135°, the torsion spring body 4 generates a reverse contraction force, at which point the torque increases, thereby enhancing the support capacity for the weight of the screen on the screen end support 8. This structure is suitable for scenarios where users hold electronic devices and shake them, while providing a stable and easy opening function. Even if it is shaken slightly after opening, the screen angle is not easily changed. The above is the working principle of this torsion spring force-saving fixing device.

Claims

1. A torsion spring force-saving fixing device, comprising a rotating shaft (1), characterized in that: A unit cell support frame (2) is rotatably sleeved on the outside of the rotating shaft (1). A torsion spring limiting seat (3) is rotatably sleeved and connected on the outside of the rotating shaft (1) and on one side of the unit cell support frame (2). A torsion spring body (4) is movably sleeved on the outside of the rotating shaft (1) and on one side of the torsion spring limiting seat (3). A torsion spring sliding groove (5) is limited and fixed on the outside of the rotating shaft (1) and on one side of the torsion spring body (4). An E-ring (6) is limited and connected on the outside of the rotating shaft (1) and on one side of the torsion spring sliding groove (5). A screen end support frame (8) is engaged and connected on the outside of one end of the rotating shaft (1).

2. The torsion spring force-saving fixing device according to claim 1, characterized in that: The unit cell support frame (2) includes a connecting bearing cylinder (21), a support plate (22), and a connecting block (23). The connecting bearing cylinder (21) is rotatably sleeved and connected to the outside of the rotating shaft (1). One end of the connecting bearing cylinder (21) is fixedly connected to a support plate (22) that is perpendicularly distributed to the connecting bearing cylinder (21). A connecting block (23) is fixedly welded to one side of the support plate (22).

3. The torsion spring force-saving fixing device according to claim 1, characterized in that: The torsion spring limiting seat (3) includes a collar (31), a limiting strip (32), and a clamping protrusion (33). The collar (31) is rotatably sleeved on the outside of the rotating shaft (1), and a limiting strip (32) is fixedly connected to both ends of the collar (31). A clamping protrusion (33) is fixedly provided on the side surface of the two limiting strips (32) that are close to each other.

4. The torsion spring force-saving fixing device according to claim 3, characterized in that: Both of the two clamping protrusions (33) are fixedly provided with rubber pads on their opposite surfaces, and both of the rubber pads are provided with rough textures on their surfaces.

5. The torsion spring force-saving fixing device according to claim 1, characterized in that: The torsion spring body (4) includes a torsion spring body (41), a first connecting end (42), and a second connecting end (43). The torsion spring body (41) is movably sleeved and connected to the outside of the rotating shaft (1). The first connecting end (42) is connected to one end of the torsion spring body (41) near the torsion spring limiting seat (3), and the second connecting end (43) is connected to one end of the torsion spring body (41) near the torsion spring sliding groove (5).

6. The torsion spring force-saving fixing device according to claim 1, characterized in that: The torsion spring sliding groove (5) includes a connecting body (51) and an annular protrusion (52). The connecting body (51) is rotatably sleeved and connected to the outside of the rotating shaft (1). The annular protrusion (52) is fixedly connected to the outer wall of the connecting body (51).

7. The torsion spring force-saving fixing device according to claim 1, characterized in that: A protruding card (61) is fixedly provided on the E-ring (6), and the protruding card (61) is engaged with the slot opened on the outer side wall of the rotating shaft (1).

8. The torsion spring force-saving fixing device according to claim 1, characterized in that: A limiting ring block (7) is fixedly provided on the outside of the rotating shaft (1), and the limiting ring block (7) is located on the side of the unit cell support frame (2) away from the torsion spring limiting seat (3).

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