Simple hinge structure

Abstract

The utility model discloses a simple hinge structure. The simple hinge structure comprises a center plate; the side plate group comprises a first side plate and a second side plate which are fixed together, and the lower ends of the first side plate and the second side plate wrap the two sides of the upper end of the center plate and are rotationally assembled; the lower ends of the first and second side plates are respectively stamped from inside to outside to form first and second gear grooves, and the outer sides of the lower ends of the first and second side plates are respectively stretched to form first and second convex parts which protrude outwards; the gear pin piece assembly comprises a gear pin piece and an elastic piece which are arranged in the center plate in a penetrating mode, the two sides of the gear pin piece extend out of the two side faces of the center plate respectively and are embedded into the first gear groove and the second gear groove respectively, the gear pin piece is blocked by the first protruding part and the second protruding part, and the elastic piece is arranged in the center plate in a penetrating mode. The tooth grooves in the gear pin piece are tightly attached to the first convex teeth and the second convex teeth under the elastic force effect of the elastic piece so as to be meshed. The utility model has the advantages of simple structure, few parts, low cost, convenience in installation and high efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of hinge products, and specifically refers to a simple hinge structure. Background Technology

[0002] Chinese utility model patent application number 202021024450.1 discloses a fine-tooth hinge, which includes: a rotating gear fixedly connected to a plug rod; a side plate assembly including a first and a second side plate rotatably mounted on both sides of the rotating gear, the first and second side plates respectively having corresponding first and second mounting holes, a stop tooth block passing through the first and second mounting holes, and the first fine helical tooth at the upper end of the stop tooth block meshing with the second fine helical tooth of the rotating gear; a first and a second spring plate respectively inserted into the first and second mounting holes, the first and second spring plates respectively abutting against both sides of the lower end face of the stop tooth block; a fixed support plate fixedly mounted between the first and second side plates, and the fixed support plate being located beside the middle of the lower end face of the stop tooth block; and a cover plate assembly including a first and a second cover plate respectively fixed to the outside of the first and second side plates, the first and second cover plates also covering the first and second mounting holes respectively.

[0003] The first and second mounting holes mentioned above penetrate the surfaces of the first and second side plates, respectively. As a result, after the stop tooth block is installed in the first and second mounting holes of the first and second side plates, the first cover plate and the second cover plate need to be installed on the outside of the first and second side plates, respectively, to limit the stop tooth block and prevent it from coming out. However, this will increase the number of hinge parts, increase the mold opening / manufacturing cost of the new parts, and also increase the installation steps of the new parts, making installation inconvenient and reducing efficiency.

[0004] In view of the above, the inventors propose the following technical solution. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a simple hinge structure.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a simplified hinge structure includes: a center plate; and a side plate assembly, which includes a first side plate and a second side plate fixed together at their upper ends. The lower ends of the first side plate and the second side plate are wrapped around the upper sides of the center plate and form a rotatable assembly. The lower ends of the first side plate and the second side plate are respectively stamped from the inside out to form a first stop groove and a second stop groove, and the outer sides of the lower ends of the first side plate and the second side plate are respectively stretched to form outwardly protruding first stop grooves corresponding to the first stop groove and the second stop groove, respectively. The first and second gear slots are respectively formed with a plurality of first and second convex teeth distributed in a stepped manner on their inner walls. The gear pin assembly includes a gear pin that is inserted into the center plate and is movable, and a spring that abuts against the gear pin to provide elastic force to the gear pin. The two sides of the gear pin extend out of the two sides of the center plate and are respectively embedded in the first and second gear slots, and are blocked by the first and second convex parts. The teeth on the gear pin are tightly engaged with the first and second convex teeth under the elastic force of the spring.

[0007] Furthermore, in the above technical solution, the gear pin is plate-shaped, and the upper side of its end is formed with the toothed groove by a semi-cutting stamping method, and the lower side of the end of the gear pin is formed with a third protrusion corresponding to the toothed groove position, and the end of the spring abuts against the rear side of the third protrusion.

[0008] Furthermore, in the above technical solution, the lower ends of the first side plate and the second side plate are bent to form a first rotating part and a second rotating part, respectively. The first rotating part and the second rotating part are respectively disposed on both sides of the upper end of the center plate and are installed by pins to form a rotatable assembly.

[0009] Furthermore, in the above technical solution, a first bending portion is formed between the lower end of the first side plate and the first rotating part, and the first bending portion is punched to form a first hole to reduce stress; a second bending portion is formed between the lower end of the second side plate and the second rotating part, and the second bending portion is punched to form a second hole to reduce stress.

[0010] Furthermore, in the above technical solution, the upper end of the center plate has a center hole through which the pin passes. The upper end of the center plate is provided with a first receiving hole for accommodating the spring piece and a first movable hole communicating with the first receiving hole outside the center hole. The stop pin is inserted into the first movable hole and can move in the first movable hole. The spring piece is inserted into and positioned in the first receiving hole, and the end of the spring piece extends into the first movable hole and abuts against the rear side of the third protrusion.

[0011] Furthermore, in the above technical solution, the spring includes a C-shaped base and a spring arm integrally formed on the base. The base is embedded and positioned in the first receiving hole, and the end of the spring arm passes through the first receiving hole and extends into the first movable hole and abuts against the rear side of the third protrusion.

[0012] Furthermore, in the above technical solution, the number of gear pin assemblies is two sets, which are distributed in a rotationally symmetrical manner; the angle between two adjacent tooth grooves is 1-20°.

[0013] Furthermore, in the above technical solution, the number of the center plates is two, which are fitted together and locked together.

[0014] Furthermore, in the above technical solution, the two center plates have the same shape and structure, and the center plate has multiple first positioning holes.

[0015] Furthermore, in the above technical solution, the first side plate and the second side plate have the same shape and structure, and are installed in a mirror image symmetrically. The first side plate and the second side plate have corresponding second positioning holes and third positioning holes.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0017] 1. This utility model has a first gear groove and a second gear groove formed by stamping from the inside to the outside at the lower ends of the first side plate and the second side plate, respectively. At the same time, the outer sides of the lower ends of the first side plate and the second side plate are stretched to form a first protrusion and a second protrusion that protrude outward and correspond to the first gear groove and the second gear groove, respectively. The first protrusion and the second protrusion are used to block the gear pin embedded in the first gear groove and the second gear groove, thereby restricting the gear pin and preventing it from falling out. As a result, there is no need to add a cover plate to the outer side of the first side plate and the second side plate, thereby reducing the number of parts, reducing the mold opening / manufacturing cost of the cover plate, and reducing the installation steps of the cover plate, making installation more convenient and efficient. Moreover, after the first side plate and the second side plate are stretched to form the first protrusion and the second protrusion, their strength is stronger, their structure is more stable, and their service life is longer.

[0018] 2. The gear shift pin is plate-shaped, and the upper side of its end is formed with the toothed groove by a semi-cutting stamping method. The lower side of the end of the gear shift pin is formed with a third protrusion corresponding to the toothed groove, thereby making the gear shift pin stronger and the production cost lower. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a perspective view of the present invention from another angle;

[0021] Figure 3 This is an exploded view of this utility model;

[0022] Figure 4 This is a cross-sectional view of the present invention;

[0023] Figure 5 This is an assembly drawing of the first side plate, center plate, and gear pin assembly in this utility model;

[0024] Figure 6 This is an assembly drawing of the first side plate and the gear shift pin assembly in this utility model;

[0025] Figure 7 This is a perspective view of the second side plate in this utility model. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0027] See Figure 1-7 As shown, a simple hinge structure includes: a center plate 1, a side plate assembly that is rotatably connected to the center plate 1, and a stop pin assembly 4 installed between the center plate 1 and the side plate assembly.

[0028] The side plate assembly includes a first side plate 2 and a second side plate 3 fixed together at their upper ends. The lower ends of the first side plate 2 and the second side plate 3 are wrapped around the upper sides of the center plate 1 and form a rotatable assembly. The lower ends of the first side plate 2 and the second side plate 3 are respectively stamped from the inside out to form a first gear groove 21 and a second gear groove 31. The angle between two adjacent gear grooves 411 is 1-20°. Furthermore, the outer sides of the lower ends of the first side plate 2 and the second side plate 3 are respectively stretched to form outwardly protruding first protrusions 22 and second protrusions 32 corresponding to the first gear groove 21 and the second gear groove 31, respectively. The first gear groove 21 and the second gear groove 31... The inner wall is formed with a plurality of first protrusions 20 and second protrusions 30 arranged in a stepped manner; the gear pin assembly 4 includes a gear pin 41 that passes through the center plate 1 and is movable, and a spring piece 42 that abuts against the gear pin 41 to provide elastic force to the gear pin 41. The gear pin 41 extends out of the two sides of the center plate 1 and is respectively embedded in the first gear groove 21 and the second gear groove 31, and is blocked by the first protrusion 22 and the second protrusion 32. The tooth groove 411 on the gear pin 41 is tightly engaged with the first protrusions 20 and the second protrusions 30 under the elastic force of the spring piece 42, thereby achieving the purpose of positioning. In other words, the present invention forms a first gear groove 21 and a second gear groove 31 by stamping from the inside out at the lower ends of the first side plate 2 and the second side plate 3, respectively. At the same time, the outer sides of the lower ends of the first side plate 2 and the second side plate 3 are stretched to form a first protrusion 22 and a second protrusion 32 that protrude outward and correspond to the first gear groove 21 and the second gear groove 31, respectively. The first protrusion 22 and the second protrusion 32 are used to block the gear pin 41 embedded in the first gear groove 21 and the second gear groove 31, thereby restricting the gear pin 41 to prevent it from falling out. As a result, there is no need to add a cover plate to the outer side of the first side plate 2 and the second side plate 3, thereby reducing the number of parts and the cost of mold opening / manufacturing of the cover plate. At the same time, it also reduces the installation steps of the cover plate, making installation more convenient and efficient. Moreover, after the first side plate 2 and the second side plate 3 are stretched to form the first protrusion 22 and the second protrusion 32, their strength is stronger, their structure is more stable, and their service life is longer.

[0029] Combination Figure 3As shown, when the side plate assembly is fixed, for example, when it is fixed on the fixed seat, the toothed groove 411 on the stop pin 41 is engaged with the first protruding tooth 20 and the second protruding tooth 30 under the elastic force of the spring plate 42, so that the side plate assembly and the center plate 1 can be positioned, that is, the center plate 1 cannot rotate backward (i.e. clockwise) relative to the side plate assembly. At this time, the center plate 1 can rotate forward (i.e. counterclockwise) relative to the side plate assembly, so that the tooth groove 411 on the gear pin 41 engages with the next first tooth 20 and second tooth 30, thereby adjusting the angle between the center plate 1 and the side plate assembly. The minimum angle between the side plate assembly and the center plate 1 is adjusted until the tooth groove 411 on the gear pin 41 engages with the lowest first tooth 20 and second tooth 30; the maximum angle between the side plate assembly and the center plate 1 is adjusted until the tooth groove 411 on the gear pin 41 engages with the highest first tooth 20 and second tooth 30, and the angle adjusted each time is 1-20° to meet different usage requirements.

[0030] The gear shift pin 41 is plate-shaped, and the upper side of its end is formed with the toothed groove 411 by a semi-cutting stamping method. The lower side of the end of the gear shift pin 41 is formed with a third protrusion 412 corresponding to the position of the toothed groove 411. The end of the spring piece 42 abuts against the rear side of the third protrusion 412.

[0031] The lower ends of the first side plate 2 and the second side plate 3 are bent to form a first rotating part 23 and a second rotating part 33, respectively. The first rotating part 23 and the second rotating part 33 are respectively wrapped around the upper end of the center plate 1 and are installed by the pin 10 to form a rotatable assembly.

[0032] A first bending portion 24 is formed between the lower end of the first side plate 2 and the first rotating part 23, which can increase the strength. The first bending portion 24 is punched to form a first hole 241 to reduce stress. A second bending portion 34 is formed between the lower end of the second side plate 3 and the second rotating part 33, which can increase the strength. The second bending portion 34 is punched to form a second hole 341 to reduce stress.

[0033] The upper end of the center plate 1 has a center hole 11 through which the pin 10 passes. The upper end of the center plate 1 is provided with a first receiving hole 12 for accommodating the spring piece 42 and a first movable hole 13 communicating with the first receiving hole 12 outside the center hole 11. The stop pin 41 passes through the first movable hole 13 and can move in the first movable hole 13. The spring piece 42 passes through and is located in the first receiving hole 12. After the end of the spring piece 42 extends into the first movable hole 13, it abuts against the rear side of the third protrusion 412, thereby making the stop pin piece stronger and the production cost lower.

[0034] The spring piece 42 includes a C-shaped base 421 and a spring arm 422 integrally formed on the base 421. The base 421 is embedded and positioned in the first receiving hole 12. The end of the spring arm 422 passes through the first receiving hole 12 and extends into the first movable hole 13 and abuts against the rear side of the third protrusion 412, thereby providing stable elasticity for the shift pin.

[0035] The number of gear pin assemblies 4 is two sets, which are distributed in a rotationally symmetrical manner, and can ensure that the center plate 1 and the gear pin assembly 4 are stably positioned during positioning.

[0036] The center plate 1 consists of two pieces, which are fitted together and locked in place, resulting in a more stable structure, longer service life, and better support capacity. The two center plates 1 have the same shape and structure, and each center plate 1 has multiple first positioning holes 14.

[0037] The first side plate 2 and the second side plate 3 have the same shape and structure and are installed in a mirror image symmetrically. The first side plate 2 and the second side plate 3 have corresponding second positioning holes 25 and third positioning holes 35, respectively.

[0038] This invention features a first gear groove 21 and a second gear groove 31 formed from the inside out at the lower ends of the first side plate 2 and the second side plate 3, respectively. Simultaneously, the outer sides of the lower ends of the first side plate 2 and the second side plate 3 are stretched to form outwardly protruding first protrusions 22 and 32 corresponding to the first gear grooves 21 and 31, respectively. These first protrusions 22 and 32 serve to block the gear pin 41 embedded in the first gear groove 21 and the second gear groove 31, thereby restricting the gear pin 41 and preventing it from dislodging. This eliminates the need for additional cover plates on the outer sides of the first side plate 2 and the second side plate 3, reducing the number of parts and the cost of mold making / manufacturing the cover plate. It also reduces the installation steps of the cover plate, making installation more convenient and efficient. Furthermore, after the first side plate 2 and the second side plate 3 are stretched to form the first protrusions 22 and 32, their strength is increased, their structure is more stable, and their service life is longer.

[0039] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A simple hinge structure, characterized by: It includes: The center plate (1); Side plate group, it includes the first side plate (2) and the second side plate (3) that are fixed together at the upper end, the lower end of the first side plate (2) and the second side plate (3) is wrapped on both sides of the upper end of the center plate (1) and forms rotatable assembly;Wherein, the lower end of the first side plate (2) and the second side plate (3) is respectively formed by inner to outer stamping first gear slot (21) and second gear slot (31), and the lower end of the first side plate (2) and the second side plate (3) is respectively formed by stretching the first convex part (22) and the second convex part (32) which are respectively corresponded with the first gear slot (21) and the second gear slot (31) and are outwardly convex;The inner wall of the first gear slot (21) and the second gear slot (31) is respectively formed with a plurality of first convex teeth (20) and second convex teeth (30) which are distributed in a stepped manner, Gear pin piece assembly (4), it includes the gear pin piece (41) that is arranged in the center plate (1) and is movable and the elastic sheet (42) that is abutted with the gear pin piece (41) to provide elastic force to the gear pin piece (41), the both sides of the gear pin piece (41) are respectively extended outside the both sides of the center plate (1) and are respectively embedded in the first gear slot (21) and the second gear slot (31), and the first convex part (22) and the second convex part (32) are blocked, and the gear slot (411) on the gear pin piece (41) is tightly attached to the first convex tooth (20) and the second convex tooth (30) under the action of the elastic force of the elastic sheet (42) to engage.

2. The simple hinge structure according to claim 1, characterized in that: The gear pin piece (41) is in the form of a sheet, and the gear slot (411) is formed on the upper side of the end portion by half-cut stamping, and the third convex part (412) corresponding to the position of the gear slot (411) is formed on the lower side of the end portion of the gear pin piece (41), and the end portion of the elastic sheet (42) is abutted with the rear side of the third convex part (412).

3. The simple hinge structure according to claim 1, characterized in that: The lower end of the first side plate (2) and the second side plate (3) is respectively formed with a first rotating part (23) and a second rotating part (33) by bending, and the first rotating part (23) and the second rotating part (33) are respectively wrapped on both sides of the upper end of the center plate (1) and are installed by a pin shaft (10) to form rotatable assembly.

4. A simple hinge structure according to claim 3, characterized in that: The first bending part (24) is formed between the lower end of the first side plate (2) and the first rotating part (23), and the first hole (241) for reducing stress is formed in the first bending part (24) by punching; The second bending part (34) is formed between the lower end of the second side plate (3) and the second rotating part (33), and the second hole (341) for reducing stress is formed in the second bending part (34) by punching.

5. The simple hinge structure according to claim 2, wherein: The upper end of the center plate (1) has a center hole (11) for the pin shaft (10) to pass through, and the upper end of the center plate (1) is provided with a first accommodating hole (12) for accommodating the elastic sheet (42) outside the center hole (11) and a first movable hole (13) in communication with the first accommodating hole (12), the gear pin sheet (41) is arranged in the first movable hole (13) and can move in the first movable hole (13), the elastic sheet (42) is arranged in the first accommodating hole (12), and the end of the elastic sheet (42) extends into the first movable hole (13) and abuts against the rear side of the third convex part (412).

6. A simple hinge structure according to claim 5, characterized in that: The elastic sheet (42) comprises a C-shaped base (421) and an elastic arm (422) integrally formed on the base (421), the base (421) is embedded in the first accommodating hole (12), and the end of the elastic arm (422) extends into the first movable hole (13) after passing through the first accommodating hole (12) and abuts against the rear side of the third convex part (412).

7. A simple hinge structure according to claim 6, characterized in that: The number of the gear pin sheet assemblies (4) is two, which are distributed in rotational symmetry; the angle between the two adjacent tooth grooves (411) is 1-20°.

8. A simple hinge structure according to claim 7, characterized in that: The number of the center plates (1) is two, which are attached and locked together.

9. A simple hinge structure according to claim 8, characterized in that: The shapes and structures of the two center plates (1) are the same, and the center plate (1) has a plurality of first positioning holes (14) thereon.

10. A simple hinge structure according to any one of claims 1-4, characterized in that: The shapes and structures of the first side plate (2) and the second side plate (3) are the same, which are installed in mirror symmetry, and the first side plate (2) and the second side plate (3) respectively have a corresponding second positioning hole (25) and a third positioning hole (35).

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