Plastic hinge with limiting structure

Abstract

The utility model discloses a plastic hinge with a limiting structure, which belongs to the technical field of plastic hinges and comprises a hinge shaft, a lower hinge fixedly mounted on the outer side of the hinge shaft, an upper hinge rotatably mounted on the outer side of the hinge shaft, a mounting box fixedly mounted at the top end of the hinge shaft, and two rectangular blocks fixedly mounted on the inner side of the bottom of the mounting box. And inclined grooves are formed in the two rectangular blocks correspondingly, limiting blocks are slidably connected in the two inclined grooves correspondingly, inclined blocks movably abut against the bottoms of the two limiting blocks correspondingly, circular insertion rods are fixedly installed on the inner sides of the two inclined blocks correspondingly, and a plurality of insertion holes are formed in the surfaces of the connecting cylinder and the hinge shaft correspondingly. Through mutual cooperation of the pull ring, the T-shaped plate, the guide column, the connecting block, the limiting block, the inclined block, the first reset spring, the circular insertion rod and the insertion hole, accidental rotation cannot occur after the angle of the upper hinge is adjusted, so that the stability and the safety of the whole structure are greatly improved, and the practicability is wider.

Description

TECHNICAL FIELD

[0001] The utility model relates to plastic hinge technical field especially relates to a plastic hinge with limiting structure. BACKGROUND

[0002] Plastic hinge is a kind of mechanical element connecting two parts and allowing them to rotate around the coupling shaft, mainly made of plastic material.According to the structural characteristics and application scenarios, plastic hinge can be divided into various types, such as combined hinge, integral hinge, etc.In addition, there are many types of hinges with different design shapes and functional characteristics, such as fish mouth plastic hinge, piano hinge, tongue-and-groove type latch hinge, standard latch hinge, simple hinge and heat-sealed hinge.Hinge, also known as hinge, is a mechanical device used to connect two solids and allow relative rotation between them.Hinge can be composed of movable components or foldable materials.

[0003] In the existing plastic hinge technology, the hinge leaf cannot be fixed after the angle adjustment is completed, so that the hinge leaf will rotate accidentally after the angle adjustment is completed, thereby greatly reducing the stability and safety of the overall structure, and the practicality is not wide;Therefore, we propose a plastic hinge with limiting structure to solve this problem. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a plastic hinge with limiting structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A plastic hinge with limiting structure, comprising: a hinge shaft, a lower hinge leaf is fixedly installed on the outer side of the hinge shaft, an upper hinge leaf is rotatably installed on the outer side of the hinge shaft, an installation box is fixedly installed at the top end of the hinge shaft, two rectangular blocks are fixedly installed on the bottom inner side of the installation box, an inclined slot is formed in each of the two rectangular blocks, a limiting block is slidably connected in each of the two inclined slots, an inclined block is movably abutted on the bottom of each of the two limiting blocks, a circular insertion rod is fixedly installed on the inner side of each of the two inclined blocks, a fixed ring is fixedly installed on the outer side of each of the two circular insertion rods, a first reset spring is fixedly connected to the outer side of each of the two fixed rings, the ends of the two first reset springs away from each other are fixedly connected to one side of the corresponding rectangular block, a connecting barrel is rotatably installed on the outer side of the hinge shaft, the connecting barrel is fixedly installed on the top of the upper hinge leaf, a plurality of insertion holes are formed in the surface of the connecting barrel and the hinge shaft, and the ends of the two circular insertion rods close to each other are movably inserted into the corresponding insertion holes.

[0007] Preferably, the top of the two connecting blocks is fixedly installed with a connecting block, the top of the two connecting blocks is fixedly installed with two guide columns, the top of the four guide columns is fixedly connected to the top inner side of the mounting box, the top of the two connecting blocks is fixedly connected with two second reset springs, the top of the four second reset springs is fixedly connected to the top inner side of the mounting box, and the four second reset springs are sleeved on the outer side of the corresponding guide column.

[0008] Preferably, the top of the two connecting blocks is fixedly installed with a T-shaped plate, the outer side of the two T-shaped plates is slidably connected to the inside of the mounting box, and the same pull ring is fixedly installed between the two T-shaped plates.

[0009] Preferably, the outer side of the connecting barrel is rotatably installed on the bottom inner side of the mounting box, the top of the upper hinge is movably abutted to the bottom of the mounting box, the bottom of the upper hinge is movably abutted to the top of the lower hinge, and the two first reset springs are sleeved on the outer side of the corresponding circular insertion rod.

[0010] Preferably, the outer side of the upper hinge and the lower hinge is provided with a reinforcing rib.

[0011] Preferably, the surface of the lower hinge is provided with two lower mounting holes, and the surface of the upper hinge is provided with three upper mounting holes.

[0012] In the utility model, the plastic hinge with the limiting structure, through pulling the pull ring, the T-shaped plate starts to move upwards, and then the connecting block starts to move upwards, so that the limiting block starts to move upwards, and then the limiting block no longer limits the inclined block, so that the inclined block starts to slide along the inclined groove, and then the circular insertion rod starts to move under the action of the first reset spring, so that the circular insertion rod is separated from the insertion hole, and then the connecting barrel and the hinge shaft are no longer fixed, and the rotating connecting barrel and the upper hinge are further facilitated.

[0013] In the utility model, the plastic hinge with the limiting structure, when the upper hinge rotates to a specified angle, the circular insertion rod is reinserted into the insertion hole under the action of the pull ring, the guide column and the first reset spring, so that the connecting barrel and the hinge shaft are re-fixed, and the upper hinge is further fixed, so that the angle adjustment of the upper hinge is completed and accidental rotation does not occur, thereby greatly improving the stability and safety of the overall structure, and the practicality is wider.

[0014] The utility model discloses reasonable structure design, through the mutual cooperation between the pull ring, T type board, guide column, connecting block, limit block, inclined block, no. 1 reset spring, round insert rod and insert hole makes the angle adjustment of upper hinge page complete and does not happen accidental rotation, thereby greatly improve the stability and security of overall structure, and the practicality is wider. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A three-dimensional structure schematic view of a plastic hinge with a limiting structure is provided for the utility model;

[0016] Figure 2 A sectional structure schematic view of a plastic hinge with a limiting structure is provided for the utility model;

[0017] Figure 3 A structure schematic view of upper hinge page, connecting cylinder and insert hole is provided for the utility model;

[0018] Figure 4 A Figure 2 The local enlarged view of A part in the middle;

[0019] Figure 5 A Figure 3 The local enlarged view of B part in the middle.

[0020] In the drawing: 1, hinge shaft;2, lower hinge page;3, upper hinge page;4, reinforcing rib;5, installation box;6, rectangular block;7, inclined groove;8, limit block;9, inclined block;10, round insert rod;11, fixed ring;12, no. 1 reset spring;13, connecting block;14, guide column;15, no. 2 reset spring;16, T type board;17, pull ring;18, connecting cylinder;19, insert hole;20, upper installation hole;21, lower installation hole. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments.

[0022] Refer to Figures 1-5The utility model provides a plastic hinge with limiting structure, which comprises a hinge shaft 1, a lower hinge leaf 2 fixedly installed on the outer side of the hinge shaft 1, an upper hinge leaf 3 rotatably installed on the outer side of the hinge shaft 1, an installation box 5 fixedly installed at the top end of the hinge shaft 1, two rectangular blocks 6 fixedly installed on the inner bottom side of the installation box 5, two inclined grooves 7 formed in the two rectangular blocks 6, two limiting blocks 8 slidably connected in the two inclined grooves 7, two inclined blocks 9 movably abutting the bottom of the two limiting blocks 8, two circular insertion rods 10 fixedly installed on the inner side of the two inclined blocks 9, two fixed rings 11 fixedly installed on the outer side of the two circular insertion rods 10, two first return springs 12 fixedly connected to the outer side of the two fixed rings 11, the two first return springs 12 fixedly connected to one side of the corresponding rectangular block 6 at the end away from each other, a connecting cylinder 18 rotatably installed on the outer side of the hinge shaft 1, the connecting cylinder 18 fixedly installed on the top of the upper hinge leaf 3, a plurality of insertion holes 19 formed in the surface of the connecting cylinder 18 and the hinge shaft 1, and the two circular insertion rods 10 movably inserted into the corresponding insertion hole 19 at the end close to each other.

[0023] In the embodiment, the top of the two limiting blocks 8 is fixedly installed with a connecting block 13, the top of the two connecting blocks 13 is fixedly installed with two guide columns 14, the top of the four guide columns 14 is fixedly connected to the inner top of the installation box 5, the top of the two connecting blocks 13 is fixedly connected with two second return springs 15, the top of the four second return springs 15 is fixedly connected to the inner top of the installation box 5, the four second return springs 15 is sleeved on the outer side of the corresponding guide column 14, and the connecting block 13 is kept stable when moving through the second return spring 15 and the guide column 14.

[0024] In the embodiment, the top of the two connecting blocks 13 is fixedly installed with a T-shaped plate 16, the outer side of the two T-shaped plates 16 is slidably connected to the inside of the installation box 5, the same pull ring 17 is fixedly installed between the two T-shaped plates 16, and the T-shaped plate 16 is conveniently moved by pulling the pull ring 17.

[0025] In the embodiment, the outer side of the connecting cylinder 18 is rotatably installed on the inner bottom of the installation box 5, the top of the upper hinge leaf 3 movably abuts the bottom of the installation box 5, the bottom of the upper hinge leaf 3 movably abuts the top of the lower hinge leaf 2, the two first return springs 12 is sleeved on the outer side of the corresponding circular insertion rod 10, and the circular insertion rod 10 is conveniently moved under the action of the first return spring 12.

[0026] In the embodiment, the outer side of the upper hinge leaf 3 and the lower hinge leaf 2 is provided with a reinforcing rib 4, the upper hinge leaf 3 and the lower hinge leaf 2 are improved in strength and stability through the reinforcing rib 4, the surface of the lower hinge leaf 2 is provided with two lower installation holes 21, the surface of the upper hinge leaf 3 is provided with three upper installation holes 20, and the upper hinge leaf 3 and the lower hinge leaf 2 are fixed between the object through the upper installation hole 20 and the lower installation hole 21.

[0027] In use, first, the lower hinge 2 and the upper hinge 3 are fixed to an object through the lower mounting hole 21 and the upper mounting hole 20, and then the T-shaped plate 16 is pulled to move upward, and the connecting block 13 is pulled to move upward, and the limiting block 8 is pulled to move upward, and the limiting block 8 no longer limits the inclined block 9, and the inclined block 9 slides along the inclined groove 7, and the circular insertion rod 10 is pulled to move out of the insertion hole 19 under the action of the first reset spring 12, and the connecting cylinder 18 and the hinge shaft 1 are no longer fixed, and the connecting cylinder 18 and the upper hinge 3 are further facilitated to rotate, when the upper hinge 3 rotates to a specified angle, the connecting cylinder 18 and the hinge shaft 1 are fixed again, and the upper hinge 3 is further fixed, and the angle of the upper hinge 3 is adjusted and will not rotate accidentally, and the stability and safety of the overall structure are greatly improved, and the practicality is wider.

[0028] The plastic hinge with a limiting structure is described in detail. The principles and implementation manners of the present application are described by using specific examples. The above examples are used to help understand the method and core idea of the present application. It should be pointed out that, for ordinary skilled persons in the technical field, the present application can be improved and modified without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A plastic hinge with a limiting structure, characterized in that, Include: The outer side of the hinged shaft (1) is fixedly installed with the lower hinge leaf (2), the outer side of the hinged shaft (1) is rotatably installed with the upper hinge leaf (3), the top of the hinged shaft (1) is fixedly installed with the mounting box (5), the bottom of the mounting box (5) is fixedly installed with two rectangular blocks (6), the inclined slot (7) is formed in the two rectangular blocks (6), the limit block (8) is slidably connected in the two inclined slots (7), the bottom of the two limit blocks (8) is movably abutted with the inclined block (9), the inner side of the two inclined blocks (9) is fixedly installed with the circular insertion rod (10), the outer side of the two circular insertion rods (10) is fixedly installed with the fixed ring (11), the outer side of the two fixed rings (11) is fixedly connected with the first reset spring (12), the ends of the two first reset springs (12) away from each other are fixedly connected to the side of the corresponding rectangular block (6), the outer side of the hinged shaft (1) is rotatably installed with the connecting barrel (18), the bottom of the connecting barrel (18) is fixedly installed on the top of the upper hinge leaf (3), the surfaces of the connecting barrel (18) and the hinged shaft (1) are provided with a plurality of insertion holes (19), and the ends of the two circular insertion rods (10) close to each other are movably inserted into the corresponding insertion holes (19).

2. The plastic hinge with a limiting structure according to claim 1, characterized in that, The top of the two limit blocks (8) is fixedly installed with the connecting block (13), the top of the two connecting blocks (13) is fixedly installed with the two guide columns (14), the top of the four guide columns (14) is fixedly connected to the top inner side of the mounting box (5), the top of the two connecting blocks (13) is fixedly connected with the two second reset springs (15), the top of the four second reset springs (15) is fixedly connected to the top inner side of the mounting box (5), and the four second reset springs (15) are sleeved on the outer side of the corresponding guide column (14).

3. The plastic hinge with a limiting structure according to claim 2, wherein The top of the two connecting blocks (13) is fixedly installed with the T-shaped plate (16), the outer side of the two T-shaped plates (16) is slidably connected to the inside of the mounting box (5), and the same pull ring (17) is fixedly installed between the two T-shaped plates (16).

4. The plastic hinge with a limiting structure according to claim 1, wherein The outer side of the connecting barrel (18) is rotatably installed on the bottom inner side of the mounting box (5), the top of the upper hinge leaf (3) is movably abutted on the bottom of the mounting box (5), the bottom of the upper hinge leaf (3) is movably abutted on the top of the lower hinge leaf (2), and the two first reset springs (12) are sleeved on the outer side of the corresponding circular insertion rod (10).

5. The plastic hinge with a limiting structure according to claim 1, wherein The outer side of the upper hinge leaf (3) and the lower hinge leaf (2) is provided with a reinforcing rib (4).

6. The plastic hinge with a limiting structure according to claim 1, wherein The surface of the lower hinge leaf (2) is provided with two lower mounting holes (21), and the surface of the upper hinge leaf (3) is provided with three upper mounting holes (20).

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