Anti-thread-slipping hinge

Abstract

The invention relates to an anti-thread-slipping hinge, and aims to solve the problem of thread slipping or base material damage caused by excessive screwing of a screw in the prior art. The hinge comprises a hinge main body, an elastic connecting part and the screw; the elastic connecting part consists of a connecting part, an elastic pressing part and an impact part, and is buckled in the mounting hole; when the screw is screwed, the elastic pressing part is extruded to deform, the impact part is driven to impact the mounting tool to enable the mounting tool to deviate, so that the screwing action is stopped, the phenomenon that the screw slips due to excessive screwing is avoided, and in addition, the elastic pressing part can limit springback through the limiting piece and the limiting hole to prevent the screw from loosening; in the screwing-in process of the screw, the drainage groove can guide glue to enter the thread pair, the anti-loosening capacity is enhanced, the rotating part of the hinge is provided with the lubricating groove and the lubricating piece, self-lubricating is achieved, and maintenance is reduced; the screwing degree of the screw is controlled through a mechanical structure, operation experience or a torque tool is not needed, the installation reliability and efficiency are improved, and the device is suitable for various application scenes.

Description

Technical Field

[0001] The present invention relates to the field of hinges, in particular to an anti-slip wire hinge. Background Art

[0002] Hinges, as key structural elements that connect components and allow for relative rotation, are widely used in numerous fields, such as doors and windows, furniture, electronic equipment housings, computer cabinets, and various types of industrial equipment. A typical hinge typically consists of at least two relatively rotatable blades (e.g., a fixed plate and a rotating plate), pivotally connected by a shaft. During installation, these hinge blades are typically provided with mounting holes, through which fasteners such as screws are inserted to secure the hinge blades to the two components to be connected.

[0003] Existing technologies typically use hand tools or power tools to tighten screws. This requires the operator to rely on experience to determine whether the screws are tightened properly. Excessive tightening can lead to thread stripping or damage to the threaded holes in the mounting substrate. This can reduce the tightening force, causing the hinge connection to become loose and unreliable. In severe cases, it can even prevent effective fastening, impacting the overall performance, stability, and service life of the product. Summary of the Invention

[0004] The main purpose of the present invention is to provide a hinge with anti-slip thread, which can actively terminate the power transmission of the installation tool after the screw is rotated to a predetermined position, thereby preventing the screw from rotating too much and slipping.

[0005] To achieve the above object, the present invention provides an anti-slip wire hinge, comprising:

[0006] The hinge body includes a fixed plate and a rotating plate rotatably connected to the fixed plate via a rotating shaft, wherein the fixed plate and the rotating plate are respectively provided with a plurality of mounting holes;

[0007] The elastic connecting component includes an integrally formed connecting portion, an elastic pressing portion, and an impact portion. The connecting portion is snapped onto the inner wall of the mounting hole and forms a connecting channel in the center thereof that passes through the mounting hole. The upper end surface of the elastic pressing portion is provided with a connecting hole that communicates with the connecting channel. The impact portion extends outward from the elastic pressing portion to form an arc-shaped cantilever structure, with its distal end forming an impact end facing the screw axis.

[0008] The screw comprises a nut and a threaded portion at the lower end of the nut, wherein the lower end of the threaded portion extends into the connecting channel through the connecting hole so that the threaded portion penetrates the connecting hole, and the area above the nut is a predetermined impact area;

[0009] In which, the initial position of the impact end is located outside the preset impact area, and the elastic pressing portion has the elastic deformation ability to generate radial expansion when squeezed by the threaded portion, and the radial expansion drives the impact end to move toward the preset impact area; when the nut is screwed into the installation tool until it contacts the elastic pressing portion, the impact end enters the preset impact area to impact the installation tool to cause it to deviate from the axis of the screw.

[0010] Furthermore, the connecting part has a raised limiting piece extending outward on one side of the upper end surface of the hinge body close to the impact part, and a limiting hole is provided at the junction of the elastic pressing part and the impact part. When the elastic pressing part is squeezed and radially expands, the limiting piece is engaged in the limiting hole to limit the rebound of the elastic pressing part.

[0011] Furthermore, the elastic pressing portion is an upwardly protruding arch structure, with an installation cavity formed below it. A bag filled with glue is provided in the installation cavity, and a drainage groove is provided on the side of the threaded portion.

[0012] Furthermore, the upper end surface of the fixed plate is provided with a symmetrically arranged fixed block, and the fixed block is provided with a fixed hole; the upper end surface of the rotating plate is provided with a rotating block, and the rotating block is provided with a rotating hole; the rotating shaft is passed through the rotating hole, and its two ends are connected to the fixed holes to realize the rotating connection between the fixed plate and the rotating plate, and a lubrication groove is provided on the rotating plate, and a lubricating part is detachably connected to the lubrication groove, and the lubrication groove is connected to the rotating hole, so that the lubricating part contacts the rotating shaft and lubricates it.

[0013] Furthermore, the lubricating part is a sponge block impregnated with lubricating oil; the lubricating groove includes at least one circumferential lubricating groove and at least one axial lubricating groove, the circumferential lubricating groove contacts the lubricating part to receive the lubricating oil, and the axial lubricating groove connects the circumferential lubricating groove and the rotating hole to guide the lubricating oil to diffuse along the axial direction of the rotating shaft.

[0014] Furthermore, the elastic connecting component is integrally formed from spring steel.

[0015] Furthermore, the lubricating component is a felt pad or a lubricant storage box.

[0016] Furthermore, a barb structure is provided at the lower end of the connecting portion.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The screw of the present invention is preset in the mounting hole of the hinge through an elastic connecting member. When the screw is tightened into place, the deformation of the elastic connecting member is used to drive the impact portion to actively interfere with the installation tool, forcibly stopping the screwing action. This fundamentally avoids the screw itself from being stripped (damaged in the thread or the head drive groove) or the threaded hole of the mounting base material (such as wood, plastic, thin plate, etc.) due to the application of excessive torque, thereby protecting the integrity of the fastener and the connected parts.

[0019] 2. During the installation process, the hinge of the present invention can impact the installation tool when the screw reaches a preset state (the nut contacts the elastic pressing part), causing it to deflect, ensuring that a relatively consistent and appropriate degree of tightening can be achieved each time the installation is installed, avoiding insufficient or excessive tightening, thereby improving the reliability of the hinge installation and the stability of the connection.

[0020] 3. This invention uses a mechanical structure to actively control the screw's screwing action. Installers no longer need to rely on experience to precisely control the tightening torque or use expensive torque control tools. Instead, they simply screw in normally until the action is automatically terminated by the mechanism to complete a reliable tightening. This significantly reduces the skill requirements, simplifies the installation process, and reduces rework caused by installation errors, thereby improving overall installation efficiency and convenience.

[0021] 4. The present invention provides a container bag inside so that during the installation process, the glue can be brought into the installation substrate along the drainage groove, thereby improving the reliability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 Schematic diagram of the structure of the hinge body of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the present invention after the screw is screwed into the mounting hole;

[0025] Figure 4 for Figure 1 BB cross-sectional view;

[0026] Figure 5 for Figure 1 A magnified view of point A;

[0027] As shown in the figure: 1. Hinge body; 11. Fixing plate; 11a. Fixing block; 11b. Fixing hole; 12. Rotating shaft; 13. Rotating plate; 13a. Rotating block; 13b. Rotating hole; 131. Lubrication groove; 131a. Circumferential lubrication groove; 131b. Axial lubrication groove; 132. Lubricating element; 14. Mounting hole; 2. Elastic connecting component; 21. Connecting portion; 211. Connecting channel; 212. Barb structure; 22. Elastic pressing portion; 221. Connecting hole; 222. Mounting cavity; 223. Filling bag; 224. Limiting hole; 23. Impact portion; 231. Impact end; 3. Screw; 31. Nut; 32. Threaded portion; 321. Drainage groove; 4. Installation tool; 5. Installation substrate; DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention will be further described below in conjunction with specific embodiments. Figure 1-5 The present invention provides an anti-slip wire hinge, comprising: a hinge body 1, comprising a fixed plate 11 and a rotating plate 13 rotatably connected to the fixed plate 11 through a rotating shaft 12, wherein the fixed plate 11 and the rotating plate 13 are respectively provided with a plurality of mounting holes 14; an elastic connecting component 2, comprising an integrally formed connecting portion 21, an elastic pressing portion 22 and an impact portion 23, wherein the connecting portion 21 is snapped onto the inner wall of the mounting hole 14 and forms a connecting channel 211 passing through the mounting hole 14 in the center, the upper end surface of the elastic pressing portion 22 is provided with a connecting hole connected to the connecting channel 211, the impact portion 23 is extended outward from the elastic pressing portion 22 to form an arc-shaped cantilever structure, the end of which forms an impact portion facing the screw axis. The impact end 231; the screw 3, comprising a nut 31 and a threaded portion 32 at the lower end of the nut 31, the lower end of the threaded portion 32 extending into the connecting channel 211 through the connecting hole, so that the threaded portion 32 is connected to the connecting hole, and the area above the nut is a preset impact area; wherein, the initial position of the impact end 231 is located outside the preset impact area, and the elastic pressing portion 22 has an elastic deformation ability to generate radial expansion when squeezed by the threaded portion 32, and the radial expansion drives the impact end 231 to move toward the preset impact area; when the nut 31 is screwed into the installation tool 4 to contact the elastic pressing portion 22, the impact end 231 enters the preset impact area to impact the installation tool 4 to cause it to deviate from the axis of the screw.

[0029] This embodiment provides a basic anti-slip hinge that actively stops tightening when the screw reaches the appropriate tightness through the mechanical action of the structure itself. This fundamentally avoids screw slippage or base material damage caused by over-tightening, and does not rely on the operator's experience or torque control device. The screw 3 and the elastic connecting component 2 are pre-embedded in the inner wall of the mounting hole 14 of the hinge body 1 through the connecting portion 21. The axis of the connecting channel 211 is coaxial with the mounting hole 14. The lower end of the threaded portion 32 of the screw 3 passes through the connecting hole. The impact end 231 of the impact portion 23 maintains a safe distance from the installation tool 4, that is, it is located in a non-interference position outside the axis of the screw, ensuring that the rotation of the installation tool 4 will not be restricted. At this time, the elastic pressing portion 22 is in a natural state without pressure. During operation, the operator uses the electric / manual installation tool 4 to cooperate with the nut 31 of the screw 3 to apply a screwing torque to the screw 3. The threaded portion 32 generates friction with the inner wall of the connecting channel 211 during the screwing process, and at the same time forms a radial extrusion on the inner wall of the connecting hole of the elastic pressing portion 22. The elastic pressing portion 22 is deformed after being squeezed. Since the upper end surface is subjected to the downward squeezing force, the elastic pressing portion 22 radially expands, driving the arc structure of the impact portion 23 to deflect centripetally, and the impact end 231 moves toward the axis of the screw 3. When the lower end surface of the nut 31 contacts the upper end surface of the elastic pressing portion 22, the screw 3 reaches The installation depth is preset, and at this time the impact end 231 of the impact part 23 can just impact the installation tool 4. The lateral impact force generated by the impact end 231 causes the head of the installation tool 4 to be radially offset, resulting in a deflection angle between the axis of the installation tool and the axis of the screw 3. After the deflection, the torque transmission path of the tool 4 is destroyed, causing the screw 3 to stop screwing in, thereby avoiding the screw slipping caused by continuous screwing in. Moreover, since the stop mechanism is triggered by the structure itself, each installation can stop in a similar tightening state, ensuring the consistency of the tightening force of multiple screw installations and improving the overall installation quality.

[0030] As one of the embodiments of the present invention, the connecting portion 21 has a protruding limiting piece 212 extending outward on one side of the upper end surface of the hinge body 1 close to the impact portion 23, and a limiting hole 224 is provided at the junction of the elastic pressing portion 22 and the impact portion 23. When the elastic pressing portion 22 is squeezed and radially expands, the limiting piece 212 is engaged in the limiting hole 224 to limit the rebound of the elastic pressing portion 22.

[0031] During operation, when the elastic pressing portion 22 is squeezed and radially expands, the limiting piece 212 extending outward from the side of the upper end surface of the hinge body 1 near the impact portion 23 of the connecting portion 21 will be clamped in the limiting hole 224 at the junction of the elastic pressing portion 22 and the impact portion 23. When the screw is fixed, the elastic pressing portion 22 cannot rebound due to the clamping action of the limiting piece 212 and the limiting hole 224, thereby not applying elastic force to the screw, thereby avoiding the screw from loosening due to the elastic potential energy of the elastic pressing portion 22. This clamping state can also make the impact portion 23 more stably maintain in the impact position, ensuring the effectiveness of the impact.

[0032] As one of the embodiments of the present invention, the elastic pressing portion 22 is an upwardly protruding arch structure, with an installation cavity 222 formed below it. A bag 223 filled with glue is provided in the installation cavity 222, and a drainage groove 321 is provided on the side of the threaded portion 32.

[0033] As the screw 3 is screwed in, its tip pierces the bag 223. As the screw 3 continues to be screwed in, the threaded portion 32 penetrates the bag 223, allowing the glue inside to be captured by the drainage groove 33 on the side of the threaded portion 32 and guided into the mounting substrate 5. Due to the screwing of the screw 3 and the guiding effect of the drainage groove 321, the glue is carried along the drainage groove 321 to the threaded pair formed between the thread and the mounting substrate 5. After the glue cures, it forms a strong chemical lock and filling, greatly improving the screw's resistance to loosening and pull-out. It is particularly suitable for use in vibrating environments or places with heavy loads. The cured glue is equivalent to adding a permanent or semi-permanent lock to the threaded connection, further ensuring the long-term reliability of the connection.

[0034] As one of the embodiments of the present invention, refer to Figure 2 The upper end surface of the fixed plate 11 is provided with a symmetrically arranged fixed block 11a, and the fixed block 11a is provided with a fixing hole 11b; the upper end surface of the rotating plate 13 is provided with a rotating block 13a, and the rotating block 13a is provided with a rotating hole 13b; the rotating shaft 12 is connected to the rotating hole 13a, and its two ends are connected to the fixing holes 11b to realize the rotating connection between the fixed plate 11 and the rotating plate 13, and a lubrication groove 131 is provided on the rotating plate 13, and a lubricating member 132 is detachably connected to the lubrication groove 131, and the lubricating groove 131 is communicated with the rotating hole 13b, so that the lubricating member 132 contacts the rotating shaft 12 and lubricates it. In this embodiment, it is preferably a porous material impregnated with lubricating oil (such as mineral oil, synthetic oil, silicone oil, etc.) or grease, such as a sponge block, a felt pad, a sintered oil-containing bearing material, etc.

[0035] As one embodiment of the present invention, the lubricating member 132 is a sponge impregnated with lubricating oil; the lubricating member 132 is a sponge impregnated with lubricating oil; the lubricating groove 131 includes at least one circumferential lubricating groove 131a and at least one axial lubricating groove 131b. The circumferential lubricating groove 131a contacts the lubricating member 132 to receive lubricating oil, and the axial lubricating groove 131b connects the circumferential lubricating groove 131a with the rotating hole 13b to guide the lubricating oil to diffuse axially along the rotating shaft 12. This embodiment is merely a specific example. To more effectively distribute the lubricant, the lubricating groove 51 may include multiple circumferential lubricating grooves 131a extending circumferentially along the rotating hole 13b and multiple axial lubricating grooves 131b extending axially along the rotating shaft 12. The circumferential lubricating groove 131a is primarily used to contact the lubricating member 132 over a large area and to store and initially distribute lubricating oil. The axial lubrication groove 131b connects the entire or partial length of the circumferential lubrication groove 131a and the rotating hole 13b. Leveraging capillary action or the pumping effect of rotation, it guides the lubricant along the axial direction of the rotating shaft, ensuring lubrication across the entire contact surface. The circumferential and axial lubrication grooves 131a, 131b can be designed to be perpendicular, intersecting, or otherwise interconnected. During hinge operation, as the rotating plate 13 rotates relative to the fixed plate 11, the rotating shaft 12 rotates within the rotating hole 13b. The lubricating element 132, in contact with the rotating shaft 12 and subject to minute pressure or temperature fluctuations generated by rotational friction, slowly releases its stored lubricant. The lubricating oil is guided and distributed across the entire contact surface between the rotating shaft 12 and the rotating hole 13b through the axial lubrication groove 131b, forming a lubricating film. Because the lubricant is stored in the lubricating element 132 and slowly released, the hinge exhibits a degree of self-lubrication, reducing the need for frequent relubrication and improving ease of use and maintenance.

[0036] As one of the specific embodiments of the present invention, refer to Figure 4 The elastic connecting component 2 of the present invention is integrally formed from spring steel, and a barb structure 212 is provided at the lower end of the connecting portion 21. Since the screw of the present invention is carried with the hinge when it leaves the factory, the screw is connected to the mounting hole of the hinge through the elastic connecting portion 2. The barb structure at the lower end of the connecting portion 21 can facilitate assembly during the factory production process and is not easy to fall off after assembly is completed.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. Any technician familiar with this technical field can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A non-slip wire hinge, characterized in that: include: The hinge body (1) comprises a fixed plate (11) and a rotating plate (13) rotatably connected to the fixed plate (11) via a rotating shaft (12), wherein the fixed plate (11) and the rotating plate (13) are respectively provided with a plurality of mounting holes (14); The elastic connecting component (2) comprises an integrally formed connecting portion (21), an elastic pressing portion (22) and an impact portion (23); the connecting portion (21) is snapped onto the inner wall of the mounting hole (14) and forms a connecting channel (211) passing through the mounting hole (14) in the center; the upper end surface of the elastic pressing portion (22) is provided with a connecting hole (221) communicating with the connecting channel (211); the impact portion (23) extends outward from the elastic pressing portion (22) to form an arc-shaped cantilever structure, and the end thereof forms an impact end (231) facing the screw axis; The screw (3) comprises a nut (31) and a threaded portion (32) at the lower end of the nut (31), wherein the lower end of the threaded portion (32) extends into the connecting channel (211) through the connecting hole (221), so that the threaded portion (32) is connected to the connecting hole (221), and the area above the nut (31) is a preset impact area; The initial position of the impact end (231) is located outside the preset impact area, and the elastic pressing portion (22) has the elastic deformation ability to generate radial expansion when squeezed by the threaded portion (32), and the radial expansion drives the impact end (231) to move toward the preset impact area; when the nut (31) is screwed into the installation tool (4) until it contacts the elastic pressing portion (22), the impact end (231) enters the preset impact area and impacts the installation tool (4) to cause it to deviate from the axis of the screw.

2. The anti-slip wire hinge according to claim 1, characterized in that: The connecting portion (21) has a protruding limiting member (212) extending outwardly on one side of the upper end surface of the hinge body (1) close to the impact portion (23), and a limiting hole (224) is provided at the junction of the elastic pressing portion (22) and the impact portion (23). When the elastic pressing portion (22) is squeezed and radially expands, the limiting member (212) is engaged in the limiting hole (224) to limit the elastic pressing portion (22) from rebounding.

3. The anti-slip wire hinge according to claim 1, characterized in that: The elastic pressing portion (22) is an upwardly protruding arched structure, with a mounting cavity (222) formed below it. A bag (223) filled with glue is provided in the mounting cavity (222), and a drainage groove (321) is provided on the side of the threaded portion (32).

4. The anti-slip wire hinge according to claim 1, characterized in that: The upper end surface of the fixed plate (11) is provided with a symmetrically arranged fixed block (11a), and the fixed block (11a) is provided with a fixed hole (11b); the upper end surface of the rotating plate (13) is provided with a rotating block (13a), and the rotating block (13a) is provided with a rotating hole (13b); the rotating shaft (12) is connected to the rotating hole (13a), and its two ends are connected to the fixed holes (11b) to realize the rotating connection between the fixed plate (11) and the rotating plate (13); the rotating plate (13) is provided with a lubrication groove (131), and a lubrication member (132) is detachably connected in the lubrication groove (131). The lubrication groove (131) is communicated with the rotating hole (13b), so that the lubrication member (132) contacts the rotating shaft (12) and lubricates it.

5. The anti-slip wire hinge according to claim 4, characterized in that: The lubricating member (132) is a sponge block impregnated with lubricating oil; the lubricating groove (131) comprises at least one section of circumferential lubricating groove (131a) and at least one section of axial lubricating groove (131b); the circumferential lubricating groove (131a) contacts the lubricating member (132) to receive the lubricating oil; the axial lubricating groove (131b) communicates with the circumferential lubricating groove (131a) and the rotating hole (13b) to guide the lubricating oil to diffuse along the axial direction of the rotating shaft (12).

6. The anti-slip wire hinge according to claim 1, characterized in that: The elastic connecting component (2) is integrally formed from spring steel.

7. The anti-slip wire hinge according to claim 4, characterized in that: The lubricating member (132) is a felt pad or a lubricant storage box.

8. The anti-slip wire hinge according to claim 1, characterized in that: The lower end of the connecting portion (21) is provided with a barb structure (212).

Images