Rotating shaft clamping structure

Abstract

The utility model discloses a rotating shaft clamping structure which comprises a rotating shaft and a support used for installing the rotating shaft. The support is provided with a limiting assembly used for being connected with the end of the rotating shaft. The limiting assembly comprises a supporting arm used for supporting the bottom of the rotating shaft and a pressing arm used for pressing the rotating shaft on the supporting arm, the pressing arm is connected with the support through an elastic arm, and a limiting groove attached to the surface of the rotating shaft is formed in the pressing arm. The utility model solves the problems that the existing rotating shaft mounting structure is complicated and the operation is tedious.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating shafts, in particular to a rotating shaft clamping structure. Background Art

[0002] A laptop is also called a "portable computer, handheld computer, handheld computer or laptop computer". It is characterized by its compact body. It is more portable than a desktop computer and is a small, portable personal computer. It usually weighs 1-3 kg. Laptops are integrated with a touchpad. The shaft inside the laptop touchpad is usually called a touchpad bearing. The touchpad bearing allows the user to support and adjust the touchpad when using it. It ensures that the touchpad can operate stably and respond to user operations during use.

[0003] The existing touch panel shaft is installed on the internal bracket, and its two ends are fixed to the bracket through a welding part. The fixing method is relatively complicated, and new structural parts are added, the structure is complicated, and the production efficiency and production cost are affected. Utility Model Content

[0004] The main purpose of the utility model is to provide a rotating shaft clamping structure, aiming to solve the problems of complex rotating shaft installation structure and complicated operation.

[0005] To achieve the above-mentioned purpose, the utility model proposes a shaft clamping structure, including a shaft and a bracket for installing the shaft; the bracket is provided with a limit assembly for connecting to the end of the shaft; the limit assembly includes a support arm for supporting the bottom of the shaft and a clamping arm for pressing the shaft against the support arm, the clamping arm is connected to the bracket via an elastic arm, and the clamping arm is provided with a limit groove that fits the surface of the shaft.

[0006] Optionally, the number of the elastic arms is two, and the two elastic arms are symmetrically arranged at two ends of the clamping arm.

[0007] Optionally, one end of the elastic arm is connected to the bracket, and the other end of the elastic arm is connected to the end of the clamping arm, and the elastic arm and the bracket are arranged at an angle.

[0008] Optionally, the angle is set to 100° to 140°.

[0009] Optionally, the limiting groove is configured as an arc-shaped groove, and the circumference of the arc-shaped groove is 1 / 3 to 1 / 2 of the outer circumference of the rotating shaft.

[0010] Optionally, the width of the elastic arm and the pressing arm is set to 2 mm to 5 mm.

[0011] Optionally, the support arm is arranged in an L shape.

[0012] Optionally, the thickness of the support arm is set to 0.4 mm to 0.7 mm.

[0013] Optionally, the support arm, the clamping arm, the elastic arm and the bracket are configured as an integrally formed stainless steel structure.

[0014] Optionally, the clamping arm and the elastic arm are configured as an integrally formed structure by stamping.

[0015] The beneficial effects of the utility model are: improving the installation structure of the existing rotating shaft, forming a support part and a clamping arm for clamping the end of the rotating shaft on the bracket, and the clamping arm is connected to the bracket through an elastic arm, which has a certain elasticity, so that the end of the rotating shaft can be conveniently clamped directly between the support arm and the clamping arm, and the end of the rotating shaft can be conveniently removed directly from between the support arm and the clamping arm, without the need to add a new fixing structure, easy to operate, high installation efficiency, and reduced manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the installation structure of the rotating shaft in the prior art;

[0018] Figure 2 This is a schematic diagram of the shaft installation structure of the utility model;

[0019] Figure 3 for Figure 2 A partial enlarged view of the middle part;

[0020] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] 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 of 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.

[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0024] In the prior art, reference Figure 1 When the rotating shaft 1 and the bracket 2 are installed, a pressing sheet 3 is usually provided to press the end of the rotating shaft 1 onto the bracket 2, and then the pressing sheet 3 is welded to the bracket 2 to complete the fixation of the rotating shaft 1. However, this structure requires an additional pressing sheet 3, and at the same time, welding operations are required. The overall structure is complex and the process is cumbersome, resulting in low assembly efficiency and high cost.

[0025] In order to solve the above problems, an embodiment of the present invention provides a clamping structure of a rotating shaft 1, referring to Figure 1 and Figure 2 , including a rotating shaft 1 and a bracket 2 for installing the rotating shaft 1; the bracket 2 is provided with a limiting assembly for connecting to the end of the rotating shaft 1; the limiting assembly includes a supporting arm 21 for supporting the bottom of the rotating shaft 1, and a pressing arm 22 for pressing the rotating shaft 1 onto the supporting arm 21, the pressing arm 22 is connected to the bracket 2 through an elastic arm 23, and the pressing arm 22 is provided with a limiting groove 221 that fits with the surface of the rotating shaft 1.

[0026] In this embodiment, the pressing plate structure in the prior art is eliminated, and a support arm 21 and a clamping arm 22 structure are formed on the bracket 2, so that the end of the rotating shaft 1 is directly clamped between the support arm 21 and the clamping arm 22, without adding new fixing parts. At the same time, the clamping arm 22 is connected to the bracket 2 through an elastic arm 23, and has a certain elasticity, which can facilitate the end of the rotating shaft 1 to be directly clamped between the support arm 21 and the clamping arm 22, and also facilitate the end of the rotating shaft 1 to be directly removed from between the support arm 21 and the clamping arm 22, without adding new fixing structures. The operation is simple, the installation efficiency is high, and the manufacturing cost is reduced.

[0027] Furthermore, the elastic arms 23 are provided in two numbers, and the two elastic arms 23 are symmetrically arranged at the two ends of the clamping arm 22. In this embodiment, the two ends of the clamping arm 22 are respectively connected to the bracket 2 by an elastic arm 23, which improves the stability of the clamping arm 22. During installation, the force is ensured to be stable, and the displacement is stably performed under the guidance of the elastic arm 23, so that the end of the rotating shaft 1 is conveniently pressed in the limiting groove 221. At the same time, the two elastic arms 23 can make the clamping arm 22 evenly stressed, and then make the rotating shaft 1 evenly stressed, and stably installed between the limiting groove 221 of the clamping arm 22 and the support arm 21, so as to ensure the stability of the overall structure.

[0028] Further, one end of the elastic arm 23 is connected to the bracket 2, and the other end of the elastic arm 23 is connected to the end of the clamping arm 22, and the elastic arm 23 and the bracket 2 are set at an angle α. It should be noted that when the angle α is too small, the elastic arm 23 is not easy to deform, which is inconvenient for the installation and disassembly of the rotating shaft 1, and when the angle α is too large, the elastic recovery force of the elastic arm 23 is inserted, resulting in an unstable clamping force between the clamping arm 22 and the support arm 21, affecting the installation stability of the rotating shaft 1. Therefore, in this embodiment, in order to ensure the stability of the clamping arm 22, the angle α is set to an obtuse angle structure. Preferably, the angle α is set to 100°~140°, ensuring that the clamping arm 22 can clamp or release the rotating shaft 1 under the elastic deformation of the elastic arm 23. At the same time, the stability of the clamping force can be ensured, and the installation stability of the rotating shaft 1 can be improved.

[0029] Furthermore, the limit groove 221 is configured as an arc groove, so that the limit groove 221 fits tightly with the outer side surface of the rotating shaft 1, thereby improving the installation stability of the rotating shaft 1. Furthermore, if the circumference of the arc groove is too small, the contact area with the rotating shaft 1 will be small, affecting the stable installation of the rotating shaft 1, and if the circumference of the arc groove is too long, the structure of the clamping arm 22 will be complicated and difficult to process. Therefore, in this embodiment, the circumference of the arc groove is 1 / 3 to 1 / 2 of the outer circumference of the rotating shaft 1, which solves the above problems and ensures the stability of the rotating shaft 1.

[0030] Furthermore, the width of the elastic arm 23 and the clamping arm 22 is set to 2mm-5mm. It should be noted that if the width of the elastic arm 23 and the clamping arm 22 is too narrow, it will affect the contact area between the arc groove and the shaft 1, thereby affecting the installation stability of the shaft 1. At the same time, too narrow a width will affect the elastic recovery effect of the elastic arm 23, thereby affecting the clamping force of the clamping arm 22 and the support arm 21 on the shaft 1, and reducing the service life; if the width of the elastic arm 23 and the clamping arm 22 is too wide, the clamping arm 22 is not easy to deform, which is not conducive to the installation and disassembly of the shaft 1, and leads to an increase in cost. Therefore, in this embodiment, combined with actual production needs, the width of the elastic arm 23 and the clamping arm 22 is set to 2mm-5mm to solve the above problems.

[0031] Furthermore, the support arm 21 is arranged in an L shape. It should be noted that an opening for installation and removal of the rotating shaft 1 needs to be provided between the support arm 21 and the clamping arm 22. Therefore, in this embodiment, the support arm 21 is arranged in an L shape, and the support arm 21 and the clamping arm 22 form a rectangular space with an opening, so that the rotating shaft 1 can be inserted and clamped between the clamping arm 22 and the support arm 21, which is convenient for installation and removal.

[0032] Furthermore, the thickness of the support arm 21 is set to 0.4 mm to 0.7 mm. It should be noted that the support arm 21 needs to have a certain structural rigidity and stability to support the rotating shaft 1. If the thickness is too thin, the structural rigidity will be affected, while if the thickness is too thick, the manufacturing difficulty and production cost will be increased. Therefore, in this embodiment, the thickness of the support arm 21 is set to 0.4 mm to 0.7 mm, which ensures structural stability and effectively reduces costs.

[0033] Furthermore, the support arm 21, the clamping arm 22, the elastic arm 23 and the bracket 2 are configured as a stainless steel one-piece structure. In this embodiment, the support arm 21, the clamping arm 22, the elastic arm 23 and the bracket 2 are made of one-piece molding, which has high production efficiency, simple process and low cost. At the same time, the stainless steel material is used, the structural stability and rigidity are stronger, and the service life is long.

[0034] Furthermore, the clamping arm 22 and the elastic arm 23 are configured as a stamping integrally formed structure. In this embodiment, the clamping arm 22 and the elastic arm 23 are stamped integrally formed, which simplifies the manufacturing process and effectively reduces the manufacturing cost.

[0035] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A rotating shaft clamping structure, characterized in that: It includes a rotating shaft and a bracket for installing the rotating shaft; the bracket is provided with a limiting assembly for connecting to the end of the rotating shaft; the limiting assembly includes a support arm for supporting the bottom of the rotating shaft and a clamping arm for pressing the rotating shaft onto the support arm, the clamping arm is connected to the bracket via an elastic arm, and the clamping arm is provided with a limiting groove that fits the surface of the rotating shaft.

2. The rotating shaft clamping structure according to claim 1, characterized in that: The number of the elastic arms is two, and the two elastic arms are symmetrically arranged at two ends of the pressing arm.

3. The rotating shaft clamping structure according to claim 2, characterized in that: One end of the elastic arm is connected to the bracket, and the other end of the elastic arm is connected to the end of the clamping arm. The elastic arm and the bracket are arranged at an angle.

4. The rotating shaft clamping structure according to claim 3, characterized in that: The angle is set to 100° to 140°.

5. The rotating shaft clamping structure according to claim 1, characterized in that: The limiting groove is configured as an arc-shaped groove, and the circumference of the arc-shaped groove is 1 / 3 to 1 / 2 of the outer circumference of the rotating shaft.

6. The rotating shaft clamping structure according to claim 1, characterized in that: The widths of the elastic arm and the pressing arm are set to 2 mm to 5 mm.

7. The rotating shaft clamping structure according to claim 1, characterized in that: The support arm is arranged in an L shape.

8. The rotating shaft clamping structure according to claim 7, characterized in that: The thickness of the support arm is set to 0.4 mm to 0.7 mm.

9. The rotating shaft clamping structure according to claim 1, characterized in that: The support arm, the pressing arm, the elastic arm and the bracket are configured as an integrally formed stainless steel structure.

10. The rotating shaft clamping structure according to claim 9, characterized in that: The clamping arm and the elastic arm are configured as an integrally formed structure by stamping.

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