Support rotating base and support

Abstract

The utility model discloses a support rotating base and a support, and relates to the technical field of support manufacturing. Comprising a base body, the base body comprises a bottom plate assembly and a rotating table, a limiting assembly is arranged between the bottom plate assembly and the rotating table and comprises a limiting disc arranged on one of the bottom plate assembly and the rotating table and a limiting shifting block arranged on the other one of the bottom plate assembly and the rotating table, a plurality of limiting parts are arranged on the circumferential side of the limiting disc, and the limiting shifting block can move in the circumferential direction of the limiting disc. When the rotating table rotates relative to the bottom plate assembly, the limiting shifting block is matched with the multiple limiting parts to be used for limiting rotation of the rotating table relative to the bottom plate assembly. Due to the fact that the limiting assembly is arranged between the bottom plate assembly and the rotating table and comprises the limiting disc and the limiting shifting block, the limiting disc is provided with the limiting parts, the limiting shifting block enters the position between the two limiting parts to achieve the limiting function, the limiting shifting block and the limiting parts are matched only with small force, and the strong limiting effect can be achieved; and the user requirements can be fully met.

Description

Technical Field

[0001] This utility model relates to the field of bracket manufacturing technology, and in particular to a bracket rotating base and bracket. Background Technology

[0002] A computer stand is a device used to support a laptop or tablet computer. It can be adjusted to various positions, which can not only improve work efficiency, improve human posture, save desktop space, but also enhance heat dissipation, protect the appearance of the laptop, and provide multi-angle adjustment functions.

[0003] In existing laptop stands, a typical laptop stand includes a folding frame, a base, and a support. The base usually uses a spring and a steel ball to abut against a positioning groove on the base to limit the rotation of the base. However, in this structure, the steel ball is pressed against the positioning groove by the spring as the elastic element to form the limiting element. The steel ball and the positioning groove need to exert a large force to achieve stable limiting. Due to long-term use, the spring may fatigue and lose elasticity, which cannot provide sufficient elasticity for the steel column and the positioning groove to cooperate, resulting in slippage, affecting the use of the stand and failing to meet user needs. Utility Model Content

[0004] This utility model provides a rotating base and support to overcome the problems of fatigue and insufficient limiting force caused by long-term rotation of the base body, which affect the use of the support and fail to meet user needs.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A rotating support base includes a base body, the base body including a base plate assembly and a rotating platform rotatable relative to the base plate assembly. A limiting component is provided between the base plate assembly and the rotating platform. The limiting component includes a limiting disk disposed on one of the base plate assembly and the rotating platform, and a limiting block disposed on the other. The limiting disk has multiple limiting parts around its periphery. The limiting block is movable circumferentially along the limiting disk. When the rotating platform rotates relative to the base plate assembly, the limiting block cooperates with the multiple limiting parts to limit the rotation of the rotating platform relative to the base plate assembly.

[0007] As described above, in the bracket rotating base, the limiting plate includes a gear fixed on the limiting plate, the limiting part is the teeth on the gear, and the limiting block disengages from or enters between the two teeth to limit the rotation of the rotating table relative to the base plate assembly.

[0008] As described above, the rotating base of the bracket has a gear mounting groove at the bottom of the rotating platform for mounting the gear and a block mounting groove for mounting the limiting block, and the gear mounting groove and the block mounting groove are in communication.

[0009] The bracket rotating base as described above includes an elastic element, one end of which abuts against the limiting block, and the other end of which abuts against the side wall of the block mounting groove, so that the limiting block is close to the gear.

[0010] As described above, the bracket rotating base includes a first annular protrusion and a second annular protrusion. The bottom of the limiting block abuts against the first annular protrusion, and the second annular protrusion abuts against the bottom of the rotating platform.

[0011] A bracket includes a base body, a folding frame, and a support base, wherein one end of the folding frame is hinged to the base body and the other end is hinged to the support base.

[0012] As described above, the folding frame includes a first rotating arm and a second rotating arm. A first lever arm pivot assembly is provided between the first rotating arm and the second rotating arm. The first lever arm pivot assembly includes a first fixed post and a first limiting sleeve sleeved and fixed on the first rotating arm. One end of the first fixed post is sleeved in the first limiting sleeve, and the other end is fixed to the second rotating arm. The second rotating arm abuts against the first limiting sleeve.

[0013] As described above, the first rotating arm is provided with a first mounting through hole, the inner wall of the first mounting through hole is provided with a first keyway, and the first limiting sleeve is provided with a first limiting rib. The first limiting rib and the first keyway cooperate to fix the first limiting sleeve on the first rotating arm.

[0014] As described above, the base body is hinged to one end of the second rotating arm, and a second lever arm pivot assembly is provided between the base body and the second rotating arm. The second lever arm pivot assembly is used to make the base body rotate relative to the second rotating arm.

[0015] As described above, the second lever arm pivot assembly includes a fixing block, a second fixing column, and a second limiting sleeve. The fixing block is fixed to the base body and has a second mounting through hole. The second limiting sleeve is fitted and fixed in the second mounting through hole. One end of the second fixing column is fitted inside the second limiting sleeve, and the other end is riveted to the second rotating arm.

[0016] Compared with existing technologies, the beneficial effects of this technical solution are as follows:

[0017] 1. With the structure of this utility model, a limiting component is provided between the base plate assembly and the rotary table. The limiting component includes a limiting disk and a limiting block. The limiting disk is provided with a limiting part. The limiting part and the limiting block work together to restrict the rotation of the rotary table relative to the base plate assembly. The limiting block achieves the limiting function by entering between the two limiting parts. The limiting block and the limiting part only need a small force to cooperate to play a strong limiting role, which can fully meet the user's needs.

[0018] 2. With the adoption of this utility model, since one end of the elastic element abuts against the limiting block and the other end abuts against the block mounting groove, when rotating, the limiting block abuts against the other tooth from between two teeth, which can produce a relatively crisp sound so that the user can accurately know the rotation of the turntable. It has a better feel and replaces the method of using steel balls and positioning grooves. It will not cause the turntable to not make a sound when rotating due to the fit being too tight or too loose.

[0019] 3. With the structure of this utility model, a first lever arm shaft assembly is provided between the first rotating arm and the second rotating arm. The first limiting sleeve in the first lever arm shaft assembly is sleeved and fixed inside the first rotating arm, and one end of the first fixing post is sleeved inside the first limiting sleeve, while the other end is riveted to the second rotating arm. The outer surface of the first fixing post has a large contact area with the first limiting sleeve, and the first fixing post is riveted to the second rotating arm, so that the second rotating arm abuts against the first limiting sleeve, which greatly increases the contact area between the first lever arm shaft assembly and the second rotating arm, resulting in greater friction and better fatigue resistance. This effectively prevents the bracket from becoming fatigued and lacking sufficient friction force after long-term use and multiple adjustments.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the unfolded state of this utility model;

[0023] Figure 2 This is an exploded view of the base body of this utility model;

[0024] Figure 3 yes Figure 2 A partial view of A in the middle;

[0025] Figure 4 This is a schematic diagram of the limiting disk structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the rotating table structure of this utility model;

[0027] Figure 6 This is an exploded view of the folding frame of this utility model;

[0028] Figure 7 This is a schematic diagram of the folded state of this utility model. Detailed Implementation

[0029] 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.

[0030] Example: Figure 1 As shown, this embodiment discloses a support, including as follows: Figures 2 to 5 The bracket shown comprises a rotating base, a folding frame 2, and a support base 3. One end of the folding frame 2 is hinged to the base body 1, and the other end is hinged to the support base 3. This type of bracket is mainly used as a laptop stand.

[0031] like Figures 2 to 5 The illustrated support rotating base includes a base body 1, which includes a base plate assembly 13 and a rotating platform 11 rotatable relative to the base plate assembly 13. A limiting component 12 is provided between the base plate assembly 13 and the rotating platform 11. The limiting component 12 includes a limiting disk 121 disposed on one of the base plate assembly 13 and the rotating platform 11, and a limiting block 122 disposed on the other. The limiting disk 121 has a plurality of limiting parts 1211 around its periphery. The limiting block 122 can move circumferentially along the limiting disk 121. When the rotating platform 11 rotates relative to the base plate assembly 13, the limiting block 122 cooperates with the plurality of limiting parts 1211 to limit the rotation of the rotating platform 11 relative to the base plate assembly 13. With the structure of this utility model, a limiting component is provided between the base plate assembly and the rotary table. The limiting component includes a limiting disk and a limiting block. The limiting disk is provided with a limiting part. The limiting part and the limiting block work together to restrict the rotation of the rotary table relative to the base plate assembly. The limiting block achieves the limiting function by entering between the two limiting parts. The limiting block and the limiting part only need a small force to cooperate to play a strong limiting role, which can fully meet the user's needs.

[0032] As a specific implementation and not a limitation, in order to better restrict the rotation of the rotary table 11 and the base plate assembly 13, the limiting disk 121 includes a gear 1211 fixed on the limiting disk 121, the limiting part 1211 being the teeth on the gear 1211, and the limiting block 122 disengaging from or entering between the two teeth to restrict the rotation of the rotary table 11 relative to the base plate assembly 13. This tooth is an arc-shaped tooth. When the limiting block 122 moves along the circumference of the limiting disk 121, the limiting block 122 undergoes slight deformation during the compression process. The limiting block 122 is positioned between the two teeth, and the sidewall of the limiting block 122 engages with the sidewall of the tooth, thus restricting the rotation of the rotary table 11 and the base plate assembly 13.

[0033] Furthermore, to facilitate the installation of the limiting component 12, the bottom of the rotary table 11 is provided with a gear mounting groove 111 for mounting the gear 1211 and a lever mounting groove 112 for mounting the limiting block 122. The gear mounting groove 111 and the lever mounting groove 112 are in communication. The gear 1211 is sleeved onto the mounting post of the gear mounting groove 111, and the lever mounting groove 112 is in communication with the gear mounting groove 111. The limiting block 122 is embedded in the lever mounting groove 112. When the rotary table 11 rotates, it drives the limiting block 122 to rotate, allowing the limiting block 122 to move along the circumference of the gear 1211.

[0034] Furthermore, to ensure a more stable engagement between the limiting block 122 and the gear 1211, an elastic element 6 is included. One end of the elastic element 6 abuts against the limiting block 122, and the other end abuts against the side wall of the block mounting groove 112, bringing the limiting block 122 closer to the gear 1211. This elastic element 6 is a spring, while the teeth of the gear 1211 are arc-shaped. Because one end of the elastic element 6 abuts against the limiting block 122 and the other end abuts against the block mounting groove 112, the limiting block 122 can move along the arc shape during rotation, moving from between two teeth to between two other teeth, producing a crisp sound that allows the user to accurately perceive the rotation of the rotary table 11, providing a better feel and also acting as a shock absorber. This replaces the method of using steel balls and positioning grooves, preventing the rotary table from failing to produce sound during rotation due to excessively tight or loose fits.

[0035] As a specific implementation and not a limitation, to facilitate the rotation of the rotary table 11 and the limiting block 122, the limiting disk 121 further includes a first annular protrusion 1212 and a second annular protrusion 1213. The bottom of the limiting block 122 abuts against the first annular protrusion 1212, and the second annular protrusion 1213 abuts against the bottom of the rotary table 11. Since the first annular protrusion 1212 abuts against the limiting block 122 and the second annular protrusion 1213 abuts against the rotary table 11, that is, when the rotary table 11 rotates, the first annular protrusion 1212 and the limiting block 122 are in a line-to-surface contact, and similarly, the second annular protrusion 1213 and the rotary table 11 are also in a line-to-surface contact. The line-to-surface contact reduces friction, which is beneficial for the rotary table 11 to rotate relative to the base plate assembly 13.

[0036] Furthermore, to enable the base body 1 to fold and unfold, the base plate assembly 13 includes a first base plate 131 and a second base plate 132. The first base plate 131 and the second base plate 132 are hinged together on the rotary table 11, and the first base plate 131 and the second base plate 132 can fold and unfold in an X-shape. Both the first base plate 131 and the second base plate 132 are hinged to the rotary table 11. When folding is required, only the first base plate 131 and the second base plate 132 need to be rotated to bring them closer together. When unfolding is required, only the first base plate 131 and the second base plate 132 need to be rotated to move them away from each other. The rotary table 11, the first base plate 131, and the second base plate 132 are arranged sequentially.

[0037] like Figures 6 to 7 The folding frame 2 shown includes a first rotating arm 21 and a second rotating arm 22. A first lever arm pivot assembly 4 is provided between the first rotating arm 21 and the second rotating arm 22. The first lever arm pivot assembly 4 includes a first fixing post 42 and a first limiting sleeve 41 sleeved and fixed on the first rotating arm 21. One end of the first fixing post 42 is sleeved in the first limiting sleeve 41, and the other end is fixed to the second rotating arm 22. The second rotating arm 22 abuts against the first limiting sleeve 41. With the structure of this utility model, a first lever arm shaft assembly is provided between the first rotating arm and the second rotating arm. A first limiting sleeve in the first lever arm shaft assembly is fitted and fixed inside the first rotating arm, and one end of the first fixing post is fitted inside the first limiting sleeve, while the other end is riveted to the second rotating arm. The outer surface of the first fixing post has a large contact area with the first limiting sleeve, and the first fixing post is riveted to the second rotating arm, causing the second rotating arm to abut against the first limiting sleeve. This greatly increases the contact area between the first lever arm shaft assembly and the second rotating arm, resulting in greater friction, better fatigue resistance, and effectively preventing joint fatigue and insufficient friction after long-term use and repeated adjustments of the bracket. Furthermore, the folding frame 2, the base body 1, and the support seat 3 can all be folded and unfolded.

[0038] As a specific implementation and not a limitation, in order to more quickly fix the first limiting sleeve 41 to the first mounting through hole 211, the first rotating arm 21 is provided with the first mounting through hole 211, the inner wall of the first mounting through hole 211 is provided with the first keyway 212, and the first limiting sleeve 41 is provided with the first limiting rib 411. The first limiting rib 411 and the first keyway 212 cooperate to fix the first limiting sleeve 41 to the first rotating arm 21. In this embodiment, two first limiting sleeves 41 and two first fixing posts 42 are provided. The two first fixing posts 42 are respectively riveted to the second rotating arm 22, and the other end is sleeved on the first limiting sleeve 41. The first limiting sleeve 41 cooperates with the first keyway 212, so that the first limiting sleeve 41 is fixed in the first mounting through hole 211. When the first rotating arm 21 swings relative to the second rotating arm 22, the first fixing post 42 rotates in the first limiting sleeve 41, so that the first rotating arm 21 swings relative to the second rotating arm 22. The contact area between the first fixing post 42 and the first limiting sleeve 41 is large, and the friction is greater. The first limiting sleeve 41 is made of a material with good wear resistance. Preferably, the first limiting sleeve 41 is made of POM material.

[0039] Furthermore, in order to enable the folding frame 2 to swing and adjust relative to the base body 1 and to improve wear resistance, the base body 1 is hinged to one end of the second rotating arm 22, and a second lever arm pivot assembly 5 is provided between the base body 1 and the second rotating arm 22. The second lever arm pivot assembly 5 is used to make the base body 1 rotate relative to the second rotating arm 22.

[0040] As a specific implementation and not a limitation, in order to give the second lever arm pivot assembly 5 better wear resistance and fatigue resistance, the second lever arm pivot assembly 5 includes a fixing block 51, a second fixing post 52 and a second limiting sleeve 53. The fixing block 51 is fixed to the base body 1 and is provided with a second mounting through hole 511. The second limiting sleeve 53 is sleeved and fixed in the second mounting through hole 511. One end of the second fixing post 52 is sleeved in the second limiting sleeve 53 and the other end is riveted to the second rotating arm 22. The second limiting sleeve 53 is made of a wear-resistant material. Preferably, the second limiting sleeve 53 is made from POM (polypropylene) scrap. The second limiting sleeve 53 is fitted into the second mounting through hole 511, and the second mounting through hole 511 is also provided with a second keyway 512. The second limiting sleeve 53 is also provided with a second limiting rib 531, which cooperates with the second keyway 512 for fixation. The second fixing post 52 is riveted to the second rotating arm 22, and its other end is fitted into the second limiting sleeve 53. The second limiting rib 531 cooperates with the second keyway 512, so that the second limiting sleeve 53 is fixed in the second mounting through hole 511. When the second rotating arm 22 swings, the second fixing post 52 rotates in the second limiting sleeve 53, causing the second rotating arm 22 to swing. The contact area between the second fixing post 52 and the second limiting sleeve 53 is large, and the friction is greater. Moreover, the second limiting sleeve 53 is made of a material with good wear resistance. Preferably, the second limiting sleeve 53 is made of POM material. Figure 1 As shown, when unfolding for use, simply swing the first rotating arm 21 and the second rotating arm 22 to unfold them. After swinging them to the appropriate position, unfold the first base plate 131 and the second base plate 132 on the base body 1 into an X shape. Finally, unfold the support base 3 and place the base body on the placement surface for use. When folding or unfolding is required, as shown... Figure 7 As shown, the base body 1 and the support 3 are folded together. After folding, the first rotating arm 21 and the second rotating arm 22 are folded together to complete the folding of the bracket.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A stand swivel base comprising a base body (1), characterized in that The base body (1) includes a base plate assembly (13) and a rotating platform (11) that can rotate relative to the base plate assembly (13). A limiting component (12) is provided between the base plate assembly (13) and the rotating platform (11). The limiting component (12) includes a limiting disk (121) provided on one of the base plate assembly (13) and the rotating platform (11) and a limiting block (122) provided on the other. The limiting disk (121) has multiple limiting parts (12111) around its periphery. The limiting block (122) can move circumferentially along the limiting disk (121). When the rotating platform (11) rotates relative to the base plate assembly (13), the limiting block (122) cooperates with the multiple limiting parts (12111) to restrict the rotation of the rotating platform (11) relative to the base plate assembly (13).

2. The bracket rotating base according to claim 1, characterized in that, The limiting disk (121) includes a gear (1211) fixed on the limiting disk (121), the limiting part (12111) is the tooth on the gear (1211), and the limiting block (122) disengages from or enters between the two teeth to limit the rotation of the rotary table (11) relative to the base plate assembly (13).

3. The turntable of claim 2, wherein, The bottom of the rotary table (11) is provided with a gear mounting groove (111) for mounting the gear (1211) and a block mounting groove (112) for mounting the limiting block (122), and the gear mounting groove (111) and the block mounting groove (112) are connected.

4. The turntable of claim 3, wherein Includes an elastic element (6), one end of which abuts against the limiting block (122), and the other end abuts against the side wall of the block mounting groove (112) so that the limiting block (122) is close to the gear (1211).

5. The turntable of claim 2, wherein, The limiting disk (121) further includes a first annular protrusion (1212) and a second annular protrusion (1213). The bottom of the limiting block (122) abuts against the first annular protrusion (1212), and the second annular protrusion (1213) abuts against the bottom of the rotating table (11).

6. A stent, characterized by It includes a base body (1), a folding frame (2) and a support base (3) as described in any one of claims 1-5, wherein one end of the folding frame (2) is hinged to the base body (1) and the other end is hinged to the support base (3).

7. The stent defined in Claim 6, wherein, The folding frame (2) includes a first rotating arm (21) and a second rotating arm (22). A first lever arm pivot assembly (4) is provided between the first rotating arm (21) and the second rotating arm (22). The first lever arm pivot assembly (4) includes a first fixed post (42) and a first limiting sleeve (41) sleeved and fixed on the first rotating arm (21). One end of the first fixed post (42) is sleeved in the first limiting sleeve (41), and the other end is fixed to the second rotating arm (22). The second rotating arm (22) abuts against the first limiting sleeve (41).

8. The bracket according to claim 7, characterized in that, The first rotating arm (21) is provided with a first mounting through hole (211), and a first keyway (212) is provided on the inner wall of the first mounting through hole (211). The first limiting sleeve (41) is provided with a first limiting rib (411). The first limiting rib (411) and the first keyway (212) cooperate to fix the first limiting sleeve (41) on the first rotating arm (21).

9. The stent defined in Claim 7, wherein, The base body (1) is hinged to one end of the second rotating arm (22). A second lever shaft assembly (5) is provided between the base body (1) and the second rotating arm (22). The second lever shaft assembly (5) is used to make the base body (1) rotate relative to the second rotating arm (22).

10. The stent of claim 9, wherein, The second lever arm pivot assembly (5) includes a fixing block (51), a second fixing post (52), and a second limiting sleeve (53). The fixing block (51) is fixed on the base body (1). The fixing block (51) is provided with a second mounting through hole (511). The second limiting sleeve (53) is fitted and fixed in the second mounting through hole (511). One end of the second fixing post (52) is fitted inside the second limiting sleeve (53), and the other end is riveted to the second rotating arm (22).

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