A ratchet check mechanism and bracket

Abstract

This utility model discloses a ratchet check mechanism and a bracket, belonging to the field of brackets. A bracket includes an adjustment structure, which comprises a first rotating seat and a second rotating seat, and further includes a support part and a load-bearing part; the adjustment part connects the support part and the load-bearing part through the adjustment structure, and includes the adjustment structure, which comprises a first rotating seat and a second rotating seat; this utility model, by using the adjustment structure to form a connection of adjustment plates, can ensure the angular stability between multiple adjustment plates, and the adjustment plates are also connected to the load-bearing rod and the base plate using the adjustment structure, which can ensure the stability of the height and tilt angle of the load-bearing part after adjustment.

Description

Technical Field

[0001] This utility model relates to the field of bracket technology, and in particular to a ratchet check mechanism and bracket. Background Technology

[0002] Stands for electronic devices such as mobile phones, tablets, or computers mainly consist of a base placed on a desktop, a tray for placing the electronic device, and a connecting frame that connects the two. The height of the electronic device can be adjusted by stretching or rotating the connecting frame, and the tilt angle of the electronic device can be adjusted by swinging the tray. Its simple structure makes it widely used.

[0003] In the prior art, the connecting frames or the connecting frame and the base / plate are mostly connected by a rotating shaft with interference fit. The interference fit and friction are used to control the stability of the height or tilt angle after adjustment. However, this method has the problem that a large interference fit makes rotation difficult, while a small interference fit makes it difficult to maintain the adjustment. Therefore, we propose a ratchet check mechanism and bracket. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of difficulty in adjusting the bracket and difficulty in maintaining it after adjustment in the prior art, and to propose a ratchet check mechanism and bracket.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A ratchet check mechanism includes an adjustment structure comprising a first rotating seat and a second rotating seat, and further comprising: a ratchet component fixedly connected to the end of the second rotating seat; a ratchet tooth component rotatably connected to the end of the first rotating seat, wherein one end of the ratchet tooth component is fixedly connected with a meshing tooth, the meshing tooth being in a normally engaged state with the ratchet component; and a guide sleeve fixedly connected to the end of the first rotating seat, wherein a lever is slidably connected to the guide sleeve, and the lever is disposed at the other end of the ratchet tooth component, wherein when the lever moves along axis L toward the ratchet tooth component, the meshing tooth is disengaged from the ratchet component.

[0007] Preferably, the outer side of the ratchet is formed with a guide surface, and the end face of the lever is formed with a tapered structure, the tapered structure abutting against the guide surface.

[0008] Preferably, a return spring is fixedly connected to one end of the ratchet near the meshing teeth, and the return spring applies a force to the ratchet to bring it closer to the ratchet.

[0009] Preferably, the end of the first rotating seat is provided with a check cavity, the ratchet and ratchet are both provided in the check cavity, the guide sleeve is sealed at the opening of the check cavity, and the guide sleeve is provided with a floating encapsulation piece, which abuts against the end of the lever.

[0010] A bracket includes a ratchet check mechanism, the ratchet check mechanism includes an adjustment structure, the adjustment structure includes a first rotating seat and a second rotating seat, and further includes: a support part and a load-bearing part; the adjustment part is connected to the support part and the load-bearing part through the adjustment structure.

[0011] Preferably, the bearing part includes: two rotatably connected bearing rods, wherein the bearing rods are provided with extension members for changing the angle between the plane where the two bearing rods are located and the horizontal plane; and a clamping member for locking the angle between the two bearing rods.

[0012] Furthermore, the clamping component includes: a locking plate and a locking sleeve connected by screws, with two bearing rods disposed between the locking plate and the locking sleeve; and a pressing component slidably connected to the second rotating seat, wherein the locking sleeve has a slot and the pressing component has a locking block, and when the pressing component moves toward the second rotating seat, the pressing component unlocks from the locking sleeve.

[0013] Furthermore, the extension includes an adjusting rod rotatably connected to a support rod, a support rod rotatably connected to the adjusting rod, and adjusting holes equidistantly provided on the support rod, with the free end of the support rod engaging with the adjusting holes.

[0014] Preferably, the support includes: two base plates rotatably connected by a rotating shaft; a mounting plate rotatably connected to one of the base plates; the adjustment part is connected to the mounting plate by an adjustment structure; wherein a locking cap is fixedly connected to the rotating shaft, a positioning toothed ring is fixedly connected to the locking cap, and a clamping block that cooperates with the positioning toothed ring is slidably connected to the mounting plate.

[0015] Preferably, the adjustment part includes at least two adjustment plates, which are rotatably connected by an adjustment structure, and the ends of the two adjustment plates are respectively connected to the support part and the bearing part by the adjustment structure, for controlling the distance between the support part and the bearing part.

[0016] Compared with the prior art, the present invention provides a ratchet check mechanism and bracket, which has the following advantages:

[0017] 1. The ratchet check mechanism has a lever installed on the guide sleeve, which rotates with the guide sleeve. When the guide sleeve rotates in the direction of the meshing teeth, the lever lifts the meshing teeth of the ratchet component. At this time, the meshing teeth are disengaged from the ratchet component, thereby realizing the reversal of the first rotating seat and the second rotating seat, which not only ensures the stability of the locking, but also facilitates adjustment.

[0018] 2. This bracket adjusts the angle between the two support rods through the clamping mechanism, such as controlling the two support rods to be closed together or to form an "X"-shaped support structure, which is convenient to carry and can ensure the stability of supporting electronic devices during use.

[0019] The parts not mentioned in this device are the same as or can be implemented using existing technology. This utility model uses an adjustment structure to form a connection between the adjustment plates, which can ensure the angular stability between multiple adjustment plates. Furthermore, the adjustment plates also use an adjustment structure to connect the bearing rod and the base plate, which can ensure the stability of the height and tilt angle of the bearing part after adjustment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a ratchet check mechanism proposed in this utility model;

[0021] Figure 2 This is a diagram showing the storage state of a bracket proposed in this utility model;

[0022] Figure 3 This invention provides an example of a support structure in its unfolded state. Figure 1 ;

[0023] Figure 4 This invention provides an example of a support structure in its unfolded state. Figure 1 ;

[0024] Figure 5 This is a partial structural diagram of a support proposed in this utility model. Figure 1 ;

[0025] Figure 6 This is a partial structural diagram of a support proposed in this utility model. Figure 2 ;

[0026] Figure 7 This is a partial structural diagram of a support proposed in this utility model. Figure 3 .

[0027] In the diagram: 100, guide sleeve; 110, lever; 120, encapsulation piece; 130, decorative plate; 200, ratchet; 210, guide surface; 220, meshing tooth; 230, return spring; 240, ratchet; 300, adjusting structure; 310, first rotating seat; 320, second rotating seat; 330, check cavity; 400, support part; 410, base plate; 420, rotating shaft; 430, locking cap; 440, positioning toothed ring; 450, mounting plate; 460, clamping block. ; 470, clamping spring; 500, bearing part; 510, bearing rod; 511, support block; 512, receiving cavity; 513, adjusting hole; 514, adjusting rod; 515, support rod; 516, limiting shaft; 517, track groove; 600, adjusting part; 610, adjusting plate; 700, clamping part; 710, locking sleeve; 711, slot; 720, pressure plate; 730, pressing part; 731, locking block; 740, adjusting head; 741, energy storage spring; 750, locking plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Example 1:

[0031] Reference Figure 1 A ratchet check mechanism includes a base component, a first rotating seat 310, and a second rotating seat 320 rotating on the first rotating seat 310. A ratchet component 240 is fixedly connected to the end of the second rotating seat 320, and a ratchet tooth component 200 is rotatably connected to the end of the first rotating seat 310, forming a seesaw structure. One end of the ratchet tooth component 200 is fixedly connected to a meshing tooth 220. The meshing tooth 220 and the ratchet component 240 are always in a meshing state when not affected by external forces during operation, meaning that the first rotating seat 310 and the second rotating seat 320 can only rotate in one direction and cannot rotate in the opposite direction. A guide sleeve 10 is fixedly connected to the end of the first rotating seat 310. Two levers 110 are slidably connected to the guide sleeve 100, corresponding to two ratchet members 200. The levers 110 are located at one end of the non-engaging teeth 220 of the ratchet member 200, and correspond to the guide surfaces 210 of the two ratchet members 200 through the tapered structure at their ends. When the levers 110 move towards the ratchet member 200 along the common axis L of the first rotating seat 310 and the second rotating seat 320, the levers 110 press down one end of the ratchet member 200, causing the engaging teeth 220 of the ratchet member 200 to lift up. At this time, the engaging teeth 220 are disengaged from the ratchet member 240, thereby realizing the reversal of the first rotating seat 310 and the second rotating seat 320.

[0032] Specifically, the guide surface 210 on the outer side of the ratchet 200 gradually narrows inward as it approaches the end of the ratchet 200, and expands outward as it approaches the turning point of the ratchet 200, until it extends to the end with the biting teeth 220, forming a deformable receiving space with the inner annular surface of the guide sleeve 100. As the tapered structure at the end of the lever 110 abuts against the guide surface 210 and continues to advance into the receiving space, the receiving space gradually increases. At this time, it will drive a section of the guide surface 210 of the ratchet 200 to rotate inward, while a section of the biting teeth 220 will rotate outward, thereby disengaging the biting teeth 220 from the ratchet 240 and releasing the ratchet check mechanism.

[0033] Specifically, a return spring 230 is fixedly connected to one end of the ratchet 200 near the engagement tooth 220. The return spring 230 applies a force to the ratchet 200 to move towards the ratchet 240, thereby keeping the engagement tooth 220 and the ratchet 240 in a normally engaged state, and also causing the lever 110 to disengage from the receiving space without being pushed by an external force.

[0034] Specifically, a check cavity 330 is provided at the end of the first rotating seat 310. Both the ratchet 240 and the ratchet 200 are disposed in the check cavity 330. The guide sleeve 100 is fixedly connected to the opening of the check cavity 330, and a sealing plate 120 is slidably connected on the guide sleeve 100 to prevent the lever 110 from disengaging from the guide sleeve 100. For aesthetic purposes, a decorative plate 130 is also attached to the sealing plate 120. In use, the decorative plate 130 is directly pushed to drive the lever 110 to slide along the axis L. The decorative plate 130 has a non-slip concentric circle structure to increase the friction with the fingers.

[0035] Example 2:

[0036] Reference Figures 1-7 The ratchet check mechanism in Embodiment 1 is used on a bracket, such as a stand for a mobile phone, tablet, or computer. Specifically, the first rotating seat 310 and the second rotating seat 320 of the adjustment structure 300 and their cooperation are used for the support part 400 placed on the table and the carrier part 500 for placing electronic devices. The adjustment part 600 connects the support part 400 and the carrier part 500 through the adjustment structure 300, thereby adjusting the distance and tilt angle between the support part 400 and the carrier part 500.

[0037] Specifically, the support unit 500 includes two rotatably connected support rods 510. The angle between the two support rods 510 is adjusted by the clamping member 700, such as controlling the two support rods 510 to come together or form an "X" shaped lifting structure.

[0038] Specifically, the clamping component 700 includes: a locking plate 750 and a locking sleeve 710 connected by screws, forming a rotating shaft between them; two bearing rods 510 are disposed between the locking plate 750 and the locking sleeve 710, thereby giving the two bearing rods 510 relative rotational frictional resistance to control the stability of the included angle after rotation; and a pressing component 730 slidably connected to the second rotating seat 320. The upper limit position of the pressing component 730 is limited by a pressure plate 720 fixed to the second rotating seat 320. The locking sleeve 710 has a slot 711, and the pressing component 730 has an integrally formed locking block 731. When the pressing component 730 is pressed towards the second rotating seat 320, the energy storage spring... The spring 741 is compressed to store energy. When the locking block 731 and the locking groove 711 are aligned again, the energy-storing spring 741 releases its stored energy, thereby causing the locking block 731 to lock into the locking groove 711. If the pressing member 730 and the locking sleeve 710 are unlocked, the two bearing rods 510 can rotate freely to adjust the overall rotation angle. In some embodiments, in order to enable the two bearing rods 510 to form a stable 45° angle, a limiting shaft 516 is fixed on one of the bearing rods 510, and an arc-shaped track groove 517 is opened on the other bearing rod 510. When the two bearing rods 510 rotate relative to each other, the rotation limit range of the limiting shaft 516 in the track groove 517 is the state of being together and the state of being at a 45° angle.

[0039] Additionally, a receiving cavity 512 is provided on the support rod 510, and an extension component is installed in the receiving cavity 512. When the extension component is retracted, it is flush with the bottom surface of the support rod 510. The extension component is used to change the angle between the plane containing the two support rods 510 and the horizontal plane. The extension component includes an adjusting rod 514 rotatably connected to the support rod 510, and a support rod 515 rotatably connected to the adjusting rod 514. Adjusting holes 513 are equidistantly provided on the support rod 510, and the free end of the support rod 515 cooperates with the adjusting hole 513. One application scenario of this extension component is that when the support part 500 and the support part 400 are close to each other, the extension component can be opened to adjust the angle between the plane containing the two support rods 510 and the horizontal plane. Although this method of use is relatively low, it has high stability.

[0040] Specifically, the support part 400 includes: two base plates 410 rotatably connected by a pivot 420; and a mounting plate 450 rotatably connected to one of the base plates 410. The adjustment part 600 is connected to the mounting plate 450 through an adjustment structure 300. A locking cap 430 is fixedly connected to the pivot 420. A positioning toothed ring 440 with an arc-shaped transition surface and a toothed groove structure is fixedly connected to the locking cap 430. A pressing block 460 that cooperates with the positioning toothed ring 440 is slidably connected to the mounting plate 450. Under the action of the pressing spring 470, the pressing block 460 will always press against the positioning toothed ring 440. Thus, when the mounting plate 450 is rotated, a "click, click" sound will be heard to indicate to the user that the rotation is in progress and that the pressing block 460 is always locked on the positioning toothed ring 440.

[0041] The adjustment unit 600 includes two or three adjustment plates 610, which are rotatably connected to each other by an adjustment structure 300. The ends of the two adjustment plates 610 are respectively connected to the support unit 400 and the bearing unit 500 by the adjustment structure 300, so as to control the distance between the support unit 400 and the bearing unit 500, so as to facilitate the user to adjust the height of the bearing unit 500 as needed.

[0042] Example 3:

[0043] Reference Figures 1-7 Similar to Embodiment 2, the adjustment structure 300 between the adjustment plate 610 and the support rod 510 is replaced with an independent adjustment head 740. The clamping member 700 is installed on the adjustment head 740, which is rotatably connected to the adjustment plate 610. The rotation of the two has a certain interference fit. This structure is simpler and easier to use. Furthermore, a support block 511 is fixedly connected to one end of the support rod 510 to ensure that the electronic device will not slip when placed on it.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A ratchet check mechanism, comprising an adjusting structure (300), the adjusting structure (300) comprising a first rotating seat (310) and a second rotating seat (320), characterized in that, Also includes: The ratchet component (240) is fixedly connected to the end of the second rotating seat (320). The ratchet (200) is rotatably connected to the end of the first rotating seat (310). Among them, one end of the ratchet (200) is fixedly connected with a biting tooth (220), and the biting tooth (220) and the ratchet (240) are in a constant biting state; The guide sleeve (100) is fixedly connected to the end of the first rotating seat (310). The guide sleeve (100) is slidably connected to a lever (110), and the lever (110) is located at the other end of the ratchet (200). When the lever (110) moves along the axis L toward the ratchet (200), the meshing teeth (220) and the ratchet (240) are in a disengaged state.

2. The ratchet check mechanism according to claim 1, characterized in that, The outer side of the ratchet (200) has a guide surface (210), and the end face of the lever (110) has a tapered structure that abuts against the guide surface (210).

3. The ratchet check mechanism according to claim 1, characterized in that, A return spring (230) is fixedly connected to one end of the ratchet (200) near the meshing tooth (220), and the return spring (230) applies a force to the ratchet (200) to move toward the ratchet (240).

4. The ratchet check mechanism according to claim 1, characterized in that, The first rotating seat (310) has a check cavity (330) at its end. The ratchet (240) and ratchet (200) are both located in the check cavity (330). The guide sleeve (100) is encapsulated in the opening of the check cavity (330). The guide sleeve (100) is provided with a floating encapsulation piece (120). The encapsulation piece (120) abuts against the end of the lever (110).

5. A bracket comprising the ratchet check mechanism according to any one of claims 1-4, the ratchet check mechanism comprising an adjusting structure (300), the adjusting structure (300) comprising a first rotating seat (310) and a second rotating seat (320), characterized in that, Also includes: Support part (400) and load-bearing part (500); An adjustment part (600) is connected to a support part (400) and a bearing part (500) via an adjustment structure (300).

6. A stent according to claim 5, characterized in that, The support portion (500) includes: Two rotatingly connected load-bearing rods (510), Among them, the bearing rod (510) is provided with an extension piece to change the angle between the plane where the two bearing rods (510) are located and the horizontal plane; The clamping element (700) is used to lock the included angle between the two support rods (510).

7. A stent according to claim 6, characterized in that, The clamping component (700) includes: Two bearing rods (510) are arranged between the locking plate (750) and the locking sleeve (710) connected by screws; The pressing element (730) is slidably connected to the second rotating seat (320). The locking sleeve (710) has a slot (711) and the pressing member (730) has a locking block (731). When the pressing member (730) moves toward the second rotating seat (320), the pressing member (730) unlocks from the locking sleeve (710).

8. A stent according to claim 6 or 7, characterized in that, The extension includes an adjusting rod (514) rotatably connected to a support rod (510), a support rod (515) rotatably connected to the adjusting rod (514), and adjusting holes (513) equidistantly provided on the support rod (510). The free end of the support rod (515) cooperates with the adjusting hole (513).

9. A stent according to claim 5, characterized in that, The support portion (400) includes: The two base plates (410) are connected by rotating the pivot (420); A mounting plate (450) is rotatably connected to one of the base plates (410), and the adjusting part (600) is connected to the mounting plate (450) via an adjusting structure (300). Among them, a locking cap (430) is fixedly connected to the rotating shaft (420), a positioning toothed ring (440) is fixedly connected to the locking cap (430), and a clamping block (460) that cooperates with the positioning toothed ring (440) is slidably connected to the mounting plate (450).

10. A stent according to claim 5, characterized in that, The adjustment part (600) includes at least two adjustment plates (610), which are rotatably connected by an adjustment structure (300). The ends of the two adjustment plates (610) are respectively connected to the support part (400) and the bearing part (500) through the adjustment structure (300) to control the distance between the support part (400) and the bearing part (500).

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