Hinge mechanism with locking piece convenient to replace, folding arm and reading frame

Abstract

The utility model discloses a hinge mechanism convenient to replace a locking piece, a folding arm and a reading stand, the hinge mechanism comprises a first movable piece and a second movable piece which are hinged through a one-way damping locking piece, the one-way damping locking piece is provided with a one-way bearing, the one-way bearing is provided with a boss or a groove, and the boss or the groove is connected with the first movable piece and the second movable piece. The first movable part is provided with a hole detachably matched with the one-way bearing, the second movable part is provided with a through hole for containing one end of the one-way damping locking part, the first movable part is provided with a check ring used in cooperation with one end of the one-way bearing, and the second movable part is provided with a limiting assembly for preventing the one-way damping locking part from axially moving. According to the one-way damping locking mechanism, the one-way damping locking piece is designed in a modularized mode, when the one-way damping locking piece is replaced, modularized overall replacement can be carried out, axial movement of the one-way damping locking piece can be prevented through the limiting assembly, and the structural stability of the whole mechanism is further improved.

Description

Technical Field

[0001] The utility model relates to an articulated mechanism, in particular to an articulated mechanism which is convenient for replacing a locking piece, and belongs to the technical field of articulated pieces. Background Art

[0002] A reading rack is a rack used to support books. It can support the books and keep them open for users to read. The inclination angle of the reading rack can also be adjusted.

[0003] However, when replacing the locking member of the reading rack in the prior art, it is usually necessary to disassemble all the components before replacement, which is very inconvenient. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a hinge mechanism which is convenient for replacing a locking member.

[0005] To solve the above problems, the utility model adopts the following technical solutions: an articulated mechanism which is convenient for replacing a locking member, comprising a first movable member and a second movable member which are hingedly connected via a one-way damping locking member, a one-way bearing being provided on the one-way damping locking member, a boss or a groove being provided on the one-way bearing, a hole being provided on the first movable member for detachably cooperating with the one-way bearing, a through hole being provided on the second movable member for accommodating one end of the one-way damping locking member, a retaining ring being provided on the first movable member for cooperating with one end of the one-way bearing, and a limit assembly being provided on the second movable member for preventing the one-way damping locking member from axial movement.

[0006] The following is a further optimization of the above solution by the utility model: the limit assembly includes an end cover provided at the end of the second movable member for preventing the axial movement of the one-way damping locking member.

[0007] Further optimization: a clamping claw is arranged on the end cover, and a clamping hole for use with the clamping claw is opened on the second movable part.

[0008] Further optimization: the one-way damping locking component also includes an inner sleeve, a nut, a bolt, and a damping washer. One end of the bolt passes through the one-way bearing and is threadedly connected to the nut. The damping washer is located in the inner hole of the retaining ring, and the damping washer is coaxially sleeved on the bolt. The outer wall of the inner sleeve directly abuts against the needle roller in the one-way bearing, one end of the inner sleeve abuts against one side of the damping washer, and the other side of the damping washer abuts against the bolt.

[0009] Further optimization: one end of the bolt is inserted into the hole of the second movable part, a screw is passed through one side of the second movable part, and a countersunk hole used in conjunction with the screw is opened on the second movable part.

[0010] Further optimization: the bolt is provided with a screw hole for use with a screw.

[0011] Further optimization: a plane is provided on one side of the bolt, and a plane used in conjunction with the bolt is provided on the inner wall of the second movable part.

[0012] Further optimization: a corrugated gasket is coaxially arranged between the nut and the inner sleeve, and the corrugated gasket is coaxially sleeved on the bolt.

[0013] Further optimization: A folding arm for facilitating replacement of the locking member, which is provided with the above-mentioned hinge mechanism.

[0014] Further optimization: A reading stand provided with an articulated mechanism or folding arm as described above.

[0015] Beneficial technical effects:

[0016] The utility model adopts a modular design for the one-way damping locking part, and when replacing it, the modular overall replacement can be carried out, and the one-way damping locking part can be prevented from axial movement through the limit assembly, thereby further improving the structural stability of the entire mechanism. When applied to the reading stand support arm, it can provide damping force when the reading stand is unfolded, and it is easier and more labor-saving when folded. The utility model solves the problem in the prior art that when replacing the locking part of the reading stand, it is usually necessary to disassemble all parts before replacing it, which is very inconvenient.

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a half-section schematic diagram of the utility model in an embodiment;

[0019] Figure 2 It is a schematic diagram of an explosion in an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the utility model installed on a reading rack in an embodiment.

[0021] In the figure: 1-first movable part; 2-second movable part; 3-nut; 4-wave washer; 5-end cover; 6-bolt; 7-plane; 8-inner sleeve; 9-one-way bearing; 10-damping washer; 11-screw hole; 12-screw; 13-countersunk hole; 14-retaining ring; 15-claw; 16-clamping hole. DETAILED DESCRIPTION

[0022] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-restrictive manner with reference to the accompanying drawings. The same reference numerals in the above drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale.

[0023] Embodiment 1, as Figure 1-3 As shown, an articulated mechanism for facilitating replacement of a locking member comprises a first movable member 1 and a second movable member 2 which are hingedly connected via a one-way damping locking member, a one-way bearing 9 being provided on the one-way damping locking member, a boss or a groove being provided on the one-way bearing 9, a hole for accommodating the one-way bearing 9 being provided on the first movable member 1, a limiting portion for cooperating with the boss or the groove being provided on the inner wall of the hole, so that the outer ring of the one-way bearing 9 can rotate synchronously with the first movable member 1, a through hole for accommodating one end of the one-way damping locking member being provided on the second movable member 2, a retaining ring 14 for cooperating with one end of the one-way bearing 9 being provided on the first movable member 1, and a limiting component for preventing the one-way damping locking member from axial movement being provided on the second movable member 2.

[0024] The boss or groove on the one-way bearing 9 is in the shape of an elongated strip and extends to both ends of the one-way bearing 9 along the axial direction of the one-way bearing 9. The one-way bearing 9 is a one-way bearing without an inner ring on the market, which facilitates the removal of the one-way bearing 9 from the first movable part 1.

[0025] The limiting assembly is a first movable member 1 and a second movable member 2, both ends of which are respectively provided with end covers 5 for preventing the axial movement of the one-way damping locking member.

[0026] It also includes an end cover 5, one side of which is provided with a claw 15, two claws 15 are provided, and are symmetrically arranged at a position close to the edge of one side of the end cover 5, and one end of the second movable part 2 is provided with a clamping hole 16 used in conjunction with the claw 15, and the claw 15 is inserted into the clamping hole 16 to prevent the end cover 5 from separating from the second movable part 2.

[0027] The one-way damping locking member further comprises an inner sleeve 8 , a nut 3 , a bolt 6 , and a damping washer 10 . One end of the bolt 6 passes through the one-way bearing 9 and is threadedly connected to the nut 3 .

[0028] One end of the bolt 6 is inserted into the hole of the second movable part 2, a screw 12 is passed through one side of the second movable part 2, a countersunk hole 13 used in conjunction with the screw 12 is provided on the second movable part 2, a screw hole 11 used in conjunction with the screw 12 is provided on the bolt 6, one end of the screw 12 passes through the countersunk hole 13 and is connected with the screw hole 11, so that the one-way damping locking part can be prevented from bearing movement and axial rotation.

[0029] A plane 7 is provided on one side of the bolt 6, and a plane used in conjunction with the second movable member 2 is provided on the inner wall thereof. The cooperation of the two planes can also enable the second movable member 2 and the bolt 6 to rotate synchronously.

[0030] The damping washer 10 is located in the inner hole of the retaining ring 14, and the damping washer 10 is coaxially mounted on the bolt 6. The outer diameter of the damping washer 10 is smaller than the inner diameter of the retaining ring 14, but larger than the inner diameter of the one-way bearing 9. At the same time, the thickness of the damping washer 10 is greater than the thickness of the retaining ring 14, which can prevent the first movable part 1 and the second movable part 2 from contacting and causing wear.

[0031] An inner sleeve 8 is coaxially inserted between the one-way bearing 9 and the bolt 6. The inner sleeve 8 is a T-shaped structure, and the outer wall of the inner sleeve 8 directly abuts against the needle roller in the one-way bearing 9. One end of the inner sleeve 8 abuts against one side of the damping washer 10, and the other end of the damping washer 10 abuts against the bolt 6. In this way, when the second movable part 2 rotates along the locking direction of the one-way bearing 9, the damping washer 10 provides a certain damping force, and vice versa, it can rotate easily.

[0032] A corrugated gasket 4 is coaxially arranged between the nut 3 and the inner sleeve 8, and the corrugated gasket 4 is coaxially sleeved on the bolt 6, so that the acting force between the bolt 6, the damping washer 10 and the inner sleeve 8 can be adjusted, thereby adjusting the damping force.

[0033] When in use, the end cover 5 is removed and the screw 12 is taken out, and the one-way damping locking member can be directly taken out for replacement, which is very convenient.

[0034] Embodiment 2: In the above embodiment 1, the first movable member 1 and the second movable member 2 are respectively connected with support arms, one of the support arms is connected with the reading frame body, and the other support arm is connected with the mounting seat.

[0035] Embodiment 3, in the above embodiment 2, the hinge mechanism in embodiment 1 is arranged between the reading frame body and the support arm, and the hinge mechanism in embodiment 1 is also arranged between the mounting seat and the corresponding support arm.

[0036] The utility model adopts a modular design for the one-way damping locking part, and when replacing it, the modular overall replacement can be carried out, and the one-way damping locking part can be prevented from axial movement through the limit assembly, thereby further improving the structural stability of the entire mechanism. When applied to the reading stand support arm, it can provide damping force when the reading stand is unfolded, and it is easier and more labor-saving when folded. The utility model solves the problem in the prior art that when replacing the locking part of the reading stand, it is usually necessary to disassemble all parts before replacing it, which is very inconvenient.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments are only used to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the claims and their equivalents.

Claims

1. A hinge mechanism for facilitating replacement of a locking member, comprising a first movable member (1) and a second movable member (2) hingedly connected via a one-way damping locking member, wherein a one-way bearing (9) is provided on the one-way damping locking member, and characterized in that: A boss or a groove is provided on the one-way bearing (9), a hole detachably matched with the one-way bearing (9) is provided on the first movable part (1), a through hole accommodating one end of a one-way damping locking part is provided on the second movable part (2), a retaining ring (14) matched with one end of the one-way bearing (9) is provided on the first movable part (1), and a limit assembly for preventing the one-way damping locking part from axial movement is provided on the second movable part (2).

2. The hinge mechanism for facilitating replacement of a locking member according to claim 1, characterized in that: The limiting assembly comprises an end cover (5) provided at the end of the second movable member (2) for preventing the axial movement of the one-way damping locking member.

3. The hinge mechanism for facilitating replacement of a locking member according to claim 2, characterized in that: The end cover (5) is provided with a clamping claw (15), and the second movable member (2) is provided with a clamping hole (16) for use with the clamping claw (15).

4. The hinge mechanism for facilitating replacement of a locking member according to claim 3, characterized in that: The one-way damping locking component also includes an inner sleeve (8), a nut (3), a bolt (6), and a damping washer (10). One end of the bolt (6) passes through the one-way bearing (9) and is threadedly connected to the nut (3). The damping washer (10) is located in the inner hole of the retaining ring (14), and the damping washer (10) is coaxially sleeved on the bolt (6). The outer wall of the inner sleeve (8) directly abuts against the needle roller in the one-way bearing (9), one end of the inner sleeve (8) abuts against one side of the damping washer (10), and the other side of the damping washer (10) abuts against the bolt (6).

5. The hinge mechanism for facilitating replacement of a locking member according to claim 4, characterized in that: One end of the bolt (6) is inserted into the hole of the second movable member (2), a screw (12) is passed through one side of the second movable member (2), and a countersunk hole (13) used in conjunction with the screw (12) is opened on the second movable member (2).

6. The hinge mechanism for facilitating replacement of a locking member according to claim 5, characterized in that: The bolt (6) is provided with a screw hole (11) for use with a screw (12).

7. A hinge mechanism for facilitating replacement of a locking member according to claim 5 or 6, characterized in that: A plane (7) is provided on one side of the bolt (6), and a plane used in conjunction with the bolt (6) is provided on the inner wall of the second movable member (2).

8. A hinge mechanism for facilitating replacement of a locking member according to any one of claims 4 to 6, characterized in that: A corrugated gasket (4) is coaxially arranged between the nut (3) and the inner sleeve (8), and the corrugated gasket (4) is coaxially sleeved on the bolt (6).

9. A folding arm for facilitating replacement of a locking member, characterized in that: It is provided with a hinge mechanism as described in any one of claims 1-8.

10. A reading stand, characterized in that: A folding arm as claimed in claim 9 is provided.

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