Ratchet wheel non-return mechanism and support

Abstract

The invention discloses a ratchet wheel non-return mechanism and a support, and belongs to the field of supports. The support comprises an adjusting structure, the adjusting structure comprises a first rotating seat and a second rotating seat, and the support further comprises a supporting part and a bearing part; the adjusting part is connected with the supporting part and the bearing part through an adjusting structure and comprises the adjusting structure, and the adjusting structure comprises a first rotating seat and a second rotating seat; the adjusting plates are connected through the adjusting structures, the angle stability among the multiple adjusting plates can be guaranteed, the adjusting plates are connected with the bearing rod and the bottom plate through the adjusting structures, and the stability of the height and the inclination angle of the adjusted bearing part can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of brackets, and in particular to a ratchet non-return mechanism and a bracket. Background Art

[0002] The bracket for electronic devices such as mobile phones, tablets or computers mainly consists of a base placed on the desktop, a tray for the electronic device, and a connecting frame connecting the two. The height of the placed electronic device can be adjusted by stretching or rotating the connecting frame, and the inclination direction of the electronic device can be adjusted by swinging the tray. Its simple structure is widely used.

[0003] In the prior art, connecting frames or connecting frames and bases or support plates are mostly matched with rotating shafts with interference fit, and the interference fit and friction of rotation are used to control the stability of the height or inclination after adjustment. However, this method has a large interference fit, which makes rotation difficult, and a small interference fit makes it difficult to maintain the height after adjustment. For this reason, we propose a ratchet non-return mechanism and a bracket. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art that the bracket is difficult to adjust and difficult to maintain after adjustment, and to propose a ratchet non-return mechanism and a bracket.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A ratchet check mechanism includes an adjustment structure, which includes a first rotating seat and a second rotating seat, and also includes: a ratchet member fixedly connected to the end of the second rotating seat, a ratchet member rotatably connected to the end of the first rotating seat, wherein one end of the ratchet member is fixedly connected to an engaging tooth, and the engaging tooth and the ratchet member are in a normal engaging state; a guide sleeve fixedly connected to the end of the first rotating seat, wherein a shift rod is slidably connected to the guide sleeve, and the shift rod is arranged at the other end of the ratchet member, and when the shift rod moves along the axis L toward the ratchet member, the engaging tooth and the ratchet member are in a disengaged state.

[0007] Preferably, a guide surface is formed on the outer side surface of the ratchet member, and a conical structure is formed on the end surface of the shifting rod, and the conical structure abuts against the guide surface.

[0008] Preferably, one end of the ratchet member close to the engaging tooth is fixedly connected to a return spring, and the return spring applies a force to the ratchet member to move closer to the ratchet wheel member.

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

[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 also includes: a supporting part and a bearing part; and an adjustment part, wherein the adjustment part connects the supporting part and the 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 pieces for changing the angle between the plane where the two bearing rods are located and the horizontal plane; and a clamping piece for locking the angle between the two bearing rods.

[0012] Furthermore, the clamping member includes: a locking plate and a locking sleeve connected by screws, two bearing rods are arranged between the locking plate and the locking sleeve; a pressing member slidably connected to the second rotating seat, wherein a slot is provided on the locking sleeve, and a blocking block is provided on the pressing member, and when the pressing member moves toward the second rotating seat, the pressing member and the locking sleeve are unlocked.

[0013] Furthermore, the extension member includes an adjustment rod rotatably connected to the bearing rod, a support rod is rotatably connected to the adjustment rod, and adjustment holes are equidistantly provided on the bearing rod, and the free ends of the support rods cooperate with the adjustment holes.

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

[0015] Preferably, the adjustment portion includes at least two adjustment plates, which are rotatably connected to each other through an adjustment structure, and the ends of the two adjustment plates are respectively connected to the support portion and the bearing portion through the adjustment structure to control the distance between the support portion and the bearing portion.

[0016] Compared with the prior art, the present invention provides a ratchet non-return mechanism and a bracket, which have the following beneficial effects:

[0017] 1. The ratchet check mechanism is constructed by installing a lever on the guide sleeve, which rotates with the guide sleeve. When the guide sleeve rotates toward the engaging teeth, the lever lifts the engaging teeth of the ratchet member. At this time, the engaging teeth and the ratchet member are out of engagement, thereby achieving reversal of the first rotating seat and the second rotating seat, ensuring locking stability and facilitating adjustment.

[0018] 2. The bracket adjusts the angle between the two load-bearing rods through the clamping parts, such as controlling the two load-bearing rods to be stored together or to form an "X"-shaped lifting structure, which is convenient for carrying and can ensure the stability of the electronic equipment when in use.

[0019] The parts not involved in this device are the same as the existing technology or can be implemented by using existing technology. The present invention uses an adjustment structure to form a connection between the adjustment plates, which can ensure the angular stability between multiple adjustment plates, and the adjustment plates also use an adjustment structure to connect the bearing rods and the base plate, which can ensure the stability of the height and inclination of the bearing part after adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a ratchet non-return mechanism proposed by the present invention;

[0021] Figure 2 A diagram showing the stowed state of a bracket proposed by the present invention;

[0022] Figure 3 The expanded state of a stent proposed by the present invention Figure 1 ;

[0023] Figure 4 The expanded state of a stent proposed by the present invention Figure 1 ;

[0024] Figure 5 Schematic diagram of the local structure of a bracket proposed by the present invention Figure 1 ;

[0025] Figure 6 Schematic diagram of the local structure of a bracket proposed by the present invention Figure 2 ;

[0026] Figure 7 Schematic diagram of the local structure of a bracket proposed by the present invention Figure 3 .

[0027] In the figure: 100, guide sleeve; 110, shift lever; 120, packaging sheet; 130, decorative plate; 200, ratchet member; 210, guide surface; 220, bite tooth; 230, return spring; 240, ratchet member; 300, adjustment structure; 310, first rotating seat; 320, second rotating seat; 330, check chamber; 400, support portion; 410, bottom plate; 420, rotating shaft; 430, locking cap; 440, positioning gear ring; 450, mounting plate; 460, tightening block ;470, tightening spring; 500, bearing part; 510, bearing rod; 511, supporting block; 512, accommodating chamber; 513, adjusting hole; 514, adjusting rod; 515, supporting rod; 516, limiting shaft; 517, track groove; 600, adjusting part; 610, adjusting plate; 700, holding part; 710, locking sleeve; 711, slot; 720, pressing plate; 730, pressing part; 731, blocking block; 740, adjusting head; 741, energy storage spring; 750, locking plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0030] Example 1:

[0031] Reference Figure 1 , a ratchet check mechanism includes a first rotating seat 310 as a base member and a second rotating seat 320 rotating on the first rotating seat 310, a ratchet member 240 is fixedly connected to the end of the second rotating seat 320, and the ratchet member 200 is rotatably connected to the end of the first rotating seat 310, that is, the ratchet member 200 forms a seesaw structure, one end of the ratchet member 200 is fixedly connected to the bite tooth 220, and the bite tooth 220 and the ratchet member 240 are always in a bite state without being affected by external force during the working process, that is, the first rotating seat 310 and the second rotating seat 320 can only rotate in one direction and cannot be reversed; a guide sleeve 10 is fixedly connected to the end of the first rotating seat 310 0, two levers 110 are slidably connected to the guide sleeve 100, corresponding to the two ratchet members 200, and the lever 110 is located at one end of the ratchet member 200 without the engaging teeth 220, and the tapered structure at its end corresponds to the guide surfaces 210 of the two ratchet members 200. When the lever 110 moves toward the ratchet member 200 along the common axis L of the first rotating seat 310 and the second rotating seat 320, the lever 110 presses down one end of the ratchet member 200, so that the engaging teeth 220 of the ratchet member 200 are lifted. At this time, the engaging teeth 220 and the ratchet member 240 are out of engagement, thereby realizing the reversal of the first rotating seat 310 and the second rotating seat 320.

[0032] Specifically, the guide surface 210 on the outside of the ratchet member 200 gradually converges inward when approaching the end of the ratchet member 200, and expands outward near the turning point of the ratchet member 200 until it extends to the end with the engaging teeth 220, forming a deformable accommodating space with the inner annular surface of the guide sleeve 100. The conical structure at the end of the shift rod 110 is that the accommodating space gradually increases during the process of the guide surface 210 being abutted and continuously advanced into the accommodating space. At this time, a section of the guide surface 210 of the ratchet member 200 will be driven to rotate inward, and a section of the engaging teeth 220 will be rotated outward, thereby disengaging the engaging teeth 220 from the ratchet member 240, thereby releasing the ratchet check mechanism.

[0033] Specifically, a return spring 230 is fixedly connected to one end of the ratchet part 200 close to the engaging tooth 220. The return spring 230 applies a force to the ratchet part 200 to move closer to the ratchet wheel part 240, thereby keeping the engaging tooth 220 and the ratchet wheel part 240 in a normal engaging state, and also allowing the lever 110 to leave the accommodating space without being pushed by external force.

[0034] Specifically, a check cavity 330 is opened at the end of the first rotating seat 310, and the ratchet member 240 and the ratchet member 200 are both arranged in the check cavity 330. The guide sleeve 100 is fixedly connected to the opening of the check cavity 330, and the guide sleeve 100 is slidably connected with a packaging sheet 120 to prevent the lever 110 from detaching from the guide sleeve 100. In addition, for the sake of aesthetics, a decorative plate 130 is also pasted on the packaging sheet 120. When in use, the decorative plate 130 is directly pushed to drive the lever 110 to slide along the axis L with the packaging sheet 120, and the decorative plate 130 has a non-slip concentric circle structure to increase the friction with the finger.

[0035] Example 2:

[0036] Reference Figure 1-Figure 7 The ratchet check mechanism in Example 1 is used on a bracket, such as a bracket lamp 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 the cooperation between the two are used to form a support part 400 placed on a desktop and a carrying part 500 for placing electronic equipment. The adjustment part 600 connects the support part 400 and the carrying part 500 through the adjustment structure 300, so that the distance and inclination angle between the support part 400 and the carrying part 500 can be adjusted.

[0037] Specifically, the bearing portion 500 includes two rotatably connected bearing rods 510 , and the angle between the two bearing rods 510 is adjusted by the clamping member 700 , such as controlling the two bearing rods 510 to be brought together or form an “X”-shaped supporting structure.

[0038] When the lock is unlocked, the lock is unlocked, and the lock is unlocked, so that the lock is unlocked. Specifically, the holding member 700 includes: a locking plate 750 and a locking sleeve 710 connected by screws, a rotating shaft is formed between the two, and two bearing rods 510 are arranged between the locking plate 750 and the locking sleeve 710, so that the two bearing rods 510 have friction resistance to relative rotation to control the stability of the angle between them after rotation; there is also a pressing member 730 slidably connected to the second rotating seat 320, the rising limit position of the pressing member 730 is defined by the pressing plate 720 fixed to the second rotating seat 320, a card slot 711 is provided on the locking sleeve 710, and a card block 731 is integrally formed on the pressing member 730. When the pressing member 730 is pressed toward the second rotating seat 320, the energy storage spring The spring 741 is squeezed to store energy. When the block 731 is aligned with the slot 711 again, the energy storage spring 741 releases the stored energy, so that the block 731 is stuck in the slot 711. If the pressing piece 730 is unlocked from the locking sleeve 710, the two supporting rods 510 can be freely rotated to adjust the overall rotation angle. In some embodiments, in order to enable the two supporting rods 510 to form a stable 45° angle, a limiting shaft 516 is fixed on one of the supporting rods 510, and an arc-shaped track groove 517 is opened on the other supporting rod 510. When the two supporting rods 510 rotate relative to each other, the rotation limit range of the limiting shaft 516 in the track groove 517 is the closed state and the 45° angle state.

[0039] In addition, a accommodating cavity 512 is provided on the supporting rod 510, and an extension piece is installed in the accommodating cavity 512. When the extension piece is stored, it is flush with the bottom surface of the supporting rod 510. The extension piece is used to change the angle between the plane where the two supporting rods 510 are located and the horizontal plane. The extension piece includes an adjusting rod 514 rotatably connected to the supporting rod 510, and a support rod 515 is rotatably connected to the adjusting rod 514. Adjustment holes 513 are equidistantly provided on the supporting rod 510, and the free ends of the support rods 515 cooperate with the adjustment holes 513. One of the usage scenarios of the extension piece is that when the supporting part 500 and the supporting part 400 are close to each other, the extension piece is opened at this time, and the angle between the plane where the two supporting rods 510 are located and the horizontal plane can be adjusted. Although this usage method is relatively low in height, it has higher stability.

[0040] Specifically, the support part 400 includes: two base plates 410 rotatably connected by a rotating shaft 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 the adjustment structure 300, the rotating shaft 420 is fixedly connected with a locking cap 430, the locking cap 430 is fixedly connected with a positioning gear ring 440 with a tooth groove structure having an arc-shaped transition surface, and the mounting plate 450 is slidably connected with a tightening block 460 that cooperates with the positioning gear ring 440. Under the action of the tightening spring 470, the tightening block 460 will always press against the positioning gear ring 440, so that when the mounting plate 450 is rotated, a "click, click" sound will be heard to remind the user that the rotation is in progress and the tightening block 460 is stuck on the positioning gear ring 440 at any time.

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

[0042] Example 3:

[0043] Reference Figure 1-Figure 7 , which is basically the same as the second embodiment, the adjustment structure 300 between the adjustment plate 610 and the supporting rod 510 is replaced by an independent adjustment head 740, and the clamping member 700 is installed on the adjustment head 740, and the adjustment head 740 is rotatably connected to the adjustment plate 610, and the rotation method of the two has a certain interference fit. This structure is simpler and easier to use, and a support block 511 is fixedly connected to one end of the supporting rod 510 to ensure that the electronic equipment will not slip when placed on it.

[0044] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A ratchet check mechanism, comprising an adjustment structure (300), wherein the adjustment structure (300) comprises a first rotating seat (310) and a second rotating seat (320), characterized in that: Also includes: The ratchet member (240) is fixedly connected to the end of the second rotating seat (320). The ratchet member (200) is rotatably connected to the end of the first rotating seat (310). One end of the ratchet member (200) is fixedly connected to an engaging tooth (220), and the engaging tooth (220) and the ratchet member (240) are in a constant engaging 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 shift rod (110), and the shift rod (110) is arranged at the other end of the ratchet member (200). When the shift rod (110) moves toward the ratchet member (200) along the axis L, the engaging teeth (220) and the ratchet member (240) are in a disengaged state.

2. A ratchet non-return mechanism according to claim 1, characterized in that: A guide surface (210) is formed on the outer side surface of the ratchet member (200), and a conical structure is formed on the end surface of the shifting rod (110), and the conical structure abuts against the guide surface (210).

3. The ratchet non-return mechanism according to claim 1, characterized in that: One end of the ratchet part (200) close to the engaging tooth (220) is fixedly connected to a return spring (230), and the return spring (230) applies a force to the ratchet part (200) to move closer to the ratchet wheel part (240).

4. The ratchet non-return mechanism according to claim 1, characterized in that: A check cavity (330) is provided at the end of the first rotating seat (310), the ratchet wheel (240) and the ratchet tooth (200) are both provided in the check cavity (330), the guide sleeve (100) is encapsulated in the open portion of the check cavity (330), and a floating encapsulation sheet (120) is provided on the guide sleeve (100), and the encapsulation sheet (120) abuts against the end of the shifting rod (110).

5. A bracket, comprising the ratchet check mechanism according to any one of claims 1 to 4, wherein the ratchet check mechanism comprises an adjustment structure (300), the adjustment structure (300) comprises a first rotating seat (310) and a second rotating seat (320), wherein: Also includes: A supporting portion (400) and a bearing portion (500); The adjusting portion (600) is connected to the supporting portion (400) and the bearing portion (500) via the adjusting structure (300).

6. The bracket according to claim 5, characterized in that: The bearing portion (500) comprises: Two rotatably connected bearing rods (510), Wherein, an extension piece is provided on the bearing rod (510) for changing the angle between the plane where the two bearing rods (510) are located and the horizontal plane; The clamping member (700) is used to lock the angle between the two bearing rods (510).

7. The bracket according to claim 6, characterized in that: The holding member (700) comprises: A locking plate (750) and a locking sleeve (710) connected by screws, and two bearing rods (510) are arranged between the locking plate (750) and the locking sleeve (710); A pressing member (730) slidably connected to the second rotating seat (320), The locking sleeve (710) is provided with a card slot (711), and the pressing member (730) is provided with a card block (731). When the pressing member (730) moves toward the second rotating seat (320), the pressing member (730) and the locking sleeve (710) are unlocked.

8. A bracket according to claim 6 or 7, characterized in that: The extension piece includes an adjusting rod (514) rotatably connected to the bearing rod (510), a support rod (515) rotatably connected to the adjusting rod (514), and adjusting holes (513) are equidistantly provided on the bearing rod (510), and the free ends of the support rods (515) are matched with the adjusting holes (513).

9. The bracket according to claim 5, characterized in that: The support portion (400) comprises: Rotating the two connected bottom plates (410) via a rotating shaft (420); The mounting plate (450) connected to one of the base plates (410) is rotated, and the adjusting portion (600) is connected to the mounting plate (450) via the adjusting structure (300). The rotating shaft (420) is fixedly connected with a locking cap (430), the locking cap (430) is fixedly connected with a positioning toothed ring (440), and the mounting plate (450) is slidably connected with a pressing block (460) that matches the positioning toothed ring (440).

10. The bracket according to claim 5, characterized in that: The adjustment portion (600) comprises at least two adjustment plates (610), the adjustment plates (610) being rotatably connected to each other via an adjustment structure (300), and the ends of the two adjustment plates (610) are respectively connected to the support portion (400) and the bearing portion (500) via the adjustment structure (300), so as to control the distance between the support portion (400) and the bearing portion (500).

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