Spring hinge base structure

Abstract

To provide an innovative spring hinge base structure. [Solution] The device includes a main body having a first pipe (11) and a first plate (10) fixedly connected to the first pipe, and multiple locking units (20) each having a cover (21) and an engaging member (22) integrally connected to the cover, with a first through-hole (211) formed in the center of the cover and grooves (212) formed at one end of the cover, the first through-holes positioned within the corresponding grooves, and the engaging members engaging in the corresponding grooves and having radial engaging grooves (221). One of the locking units engages with one end of the first pipe and moves with the first pipe, while the other locking unit is located at the other end of the first pipe and rotates relative to the first pipe. The device also includes an elastic member (30) whose both ends are engaged in the engaging grooves of the locking units, a second plate (40) whose upper and lower ends on one side each protrude outward to form a stopper (41) with a second through-hole (411), and a shaft member (50) inserted through the first and second through-holes.

Description

[Technical Field]

[0001] The present invention relates to hinges, and more particularly to spring hinge base structures. [Background technology]

[0002] A conventional spring hinge is a simple mechanical device that uses a spring or elastic sheet to generate a torsional force to open or close a door leaf. It is typically used to automatically close or hold a door leaf open. Typical spring hinge functions include unidirectional and bidirectional movement of the door leaf. In use, one blade of the spring hinge is fixed to the door frame, and the other blade is fixed to the door leaf. The spring or elastic sheet fixed in the hinge tube applies a physical torsional force to the door leaf, allowing it to close or hold open again after completing its movement.

[0003] This type of spring hinge is applied to fire doors in public facilities, indoor kitchens, living room partition doors, outdoor fence doors, etc., and functions as a base for providing the torsional action of a spring or elastic sheet. Its body is usually manufactured from a single material such as copper, aluminum, iron, zinc alloy, plastic fiber, etc. by methods such as die-casting, turning, or injection molding. However, if the base (including the fixed base and adjustable base) is made of such soft materials with low density as copper, aluminum, iron, zinc alloy, and plastic fiber, the elastic members such as the clamping spring and elastic sheet disposed therein cannot withstand the excessive pressure generated by the frequent movement of a heavy door panel, and may become deformed, worn, or even torsionally broken, resulting in the loss of torsional force of the elastic members or their significant weakening.

[0004] The elastic member bases (fixed base and adjustable base) of spring hinges made of copper, aluminum, iron, zinc alloy, or plastic fiber cannot withstand the large torsional movements of the elastic members, which shortens the service life of the spring hinge.

[0005] US20070136991 does not disclose, suggest, or suggest the use of a composite cover made of two separate components to solve the long-standing technical problems of the prior art. In the lock unit disclosed in the patent, the cover and engaging member are made of a single material and are integrally molded. In fact, there is no reason or motivation for providing the cover and engaging member as two separate components in the field of spring hinges. In the prior art, due to considerations of production yield, efficiency, cost, and consistency of materials, color, and appearance, those skilled in the art would typically avoid making the cover into two separate components; otherwise, production yield and efficiency would decrease, production costs would increase, and consistency of materials, color, and appearance would be poor. Therefore, for those skilled in the art, constructing a cover from two separate components is an unreasonable and difficult-to-understand approach.

[0006] Therefore, there is a need to provide a new and innovative spring hinge base structure to solve the above problems. Summary of the Invention [Problem to be solved by the invention]

[0007] The main objective of the present invention is to provide a spring hinge base structure that can provide high strength torsional load capacity and ensure the stability and service life of the whole structure even under high load torsional motion. [Means for solving the problem]

[0008] To achieve the above object, the present invention provides a spring hinge base structure, comprising a main body having a first tube and a first plate portion fixedly connected to the first tube, and a plurality of locking units each having a cover and an engaging member integrally connected to the cover, each of the covers having a first through-hole at the center and a groove at one end of the cover, each of the first through-holes positioned within the corresponding groove, each of the engaging members having an engaging groove engaged in the corresponding groove, one of the locking units being engaged with one end of the first tube and moving together with the first tube, and the other of the locking units being positioned at the other end of the first tube. a plurality of locking units that are positioned on the first tubular body and rotate relative to the first tubular body; an elastic member whose both ends are engaged in the engaging grooves of the two locking units, respectively; a second plate portion whose upper and lower ends on one side each protrude outward to form a stopper portion having a second through hole; and an axial member that penetrates the first through hole and the second through hole, wherein the second plate portion has an integral structure and is rotatably connected to the other locking unit via a blocking member so as to rotate integrally therewith, and the blocking member is adjustably connected to the other locking unit so as to abut between the second plate portion and the locking unit. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of the present invention. [Figure 2] FIG. [Figure 3] FIG. 2 is a diagram showing the main body structure of the present invention. [Figure 4] FIG. 2 is a diagram showing the main body structure of the present invention. [Figure 5] FIG. 2 is a cross-sectional view of the present invention. [Figure 6] FIG. 2 is a perspective view of the engaging member of the present invention; [Figure 7] 1 is a cross-sectional view of an engaging member of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0010] The following describes possible embodiments of the present invention only by way of examples, but does not limit the scope of protection of the present invention. The words "one" or "at least one" before the nouns mentioned in this specification do not limit the number, and may be "plurality" as needed. Changes in this number are also within the scope of protection, as will be explained below.

[0011] 1 to 7, which show one embodiment of the present invention, the spring hinge base structure 1 of the present invention includes a main body 9 having a first tubular body 11 and a first plate portion 10 fixedly connected to the first tubular body 11, a plurality of locking units 20, an elastic member 30, and a second plate portion 40.

[0012] Each lock unit 20 has a cover 21 and an engaging member 22, which are two independent components connected together. Each cover 21 has a first through-hole 211 at the center and a groove 212 at one end, which is located inside the groove 212. Each engaging member 22 is engaged with the corresponding groove 212. Each engaging member 22 may be radially penetrated to form the engaging groove 221, or may be non-radially cut into its tubular wall to form the engaging groove 221, which makes it easy for the elastic member 30 to be fitted and engaged with the engaging member 22 and provides different preload adjustment options. One of the locking units 20 is fixedly engaged with one end of the first pipe 11, for example by a pin 201, and moves together with the first pipe 11, while the other locking unit 20 is provided at the other end of the first pipe 11 and rotates relative to the first pipe 11.

[0013] The top of each cover 21 includes an annular flange 213 that abuts against the end of the first tubular body 11. An internal thread 214 is formed on the inner wall of the groove 212 of the cover 21, and one end of the engaging member 22 is formed with an external thread 222 that mates with the internal thread 214, allowing the engaging member 22 to be detachably engaged with the groove 212. However, the present invention is not limited to this, and the engaging member 22 may be connected by welding, riveting using a positioning hole, bolts, fasteners, or other methods. Specifically, a non-threaded portion 224 is formed near the external thread 222 of the engaging member 22, and the engaging groove 221 is formed by cutting one end of the non-threaded portion 224. Preferably, the engaging groove 221 is located entirely within the range of the non-threaded portion 224. Both ends of the elastic member 30 are fitted into the corresponding non-threaded portions 224, the male threads 222 of the engaging member 22 are located completely outside the non-threaded portions 224, and annular spacer portions 225 are formed between both ends of the elastic member 30 and the outer circumferential surface 223 of the engaging member 22. When viewed from the axial direction of the engaging member 22, the male threads 222 are located completely within the range of the outer circumferential surface 223. Therefore, the elastic member 30 is not affected by interference from the male threads 222, and no jamming phenomenon occurs due to contact with the threads when the elastic member 30 contracts or expands, so that a stable torsional force can be provided.

[0014] Depending on the application, the cover 21 may be made of copper, aluminum, zinc alloy, or plastic fiber, and the engaging members 22 may be made of, for example, iron or heat-treated steel, with higher rigidity and tensile strength than the cover 21. Therefore, the engaging members 22 can withstand the large torsional movement of the elastic member 30 without being easily deformed or damaged. Preferably, the first tube 11 and each cover 21 are made of the same material. Each cover 21 and the corresponding engaging member 22 are two independent components that are integrally connected to each other and removably assembled.

[0015] Both ends of the elastic member 30 are engaged in the engaging grooves 221 of the one lock unit 20 and the other lock unit 20. The elastic member 30 may be a spring or any elastic sheet.

[0016] The upper and lower ends of one side of the second plate portion 40 each protrude outward to form a stopper portion 41, and are provided with a second through hole 411. Each stopper portion 41 abuts against the outside of the cover 21, allowing the second through hole 411 to communicate with the corresponding first through hole 211.

[0017] The shaft member 50 is inserted through the first through hole 211 and the second through hole 411, and the second plate portion 40 has an integral structure and is rotatably connected to the other lock unit 20 via a blocking member 60 so as to rotate integrally therewith, and the blocking member 60 is adjustably connected to the lock unit 20 and abuts between the second plate portion 40 and the lock unit 20.

[0018] In this embodiment, the spring hinge base structure 1 further includes a second elastic member 70, a third plate 80, and a second shaft member 90. The main body 9 is an integrally molded structure and further includes a second pipe 12, with the first plate member 10 connected between the first pipe 11 and the second pipe 12. One of the locking units 20 is fixedly engaged with one end of the second pipe 12, for example, by a pin 801, and moves together with the second pipe 12, while the other locking unit 20 is provided at the other end of the second pipe 12 and rotates relative to the second pipe 12. Both ends of the second elastic member 70 are engaged in the engaging grooves 221 of the locking unit 20. The second shaft member 90 penetrates through the first through-hole and one end of the third plate member 80. The third plate portion 80 has an integral structure and is connected to one of the lock units 20 via the second blocking member 100 so as to rotate integrally therewith, and the second blocking member 100 is adjustably connected to the lock unit 20 and abuts between the third plate portion 80 and the lock unit 20. The main body 9 is constructed from a single material, and the first plate portion 10 includes a first end plate 101, an intermediate plate 102, and a second end plate 103. The first tube 11 extends integrally from one side of the first end plate 101, the intermediate plate 102 extends integrally between and connects the first tube 11 and the second tube 12, and the second end plate 103 extends integrally from the second tube 12, and the intermediate plate 102 is fixedly connected between the first end plate 101 and the second end plate 103 by welding, riveting with positioning holes, bolts, fasteners, or the like. Preferably, the first end plate 101, the intermediate plate 102, and the second end plate 103 have substantially the same width between the first tube 11 and the second tube 12. Preferably, the outer surface 223 is threaded from the edge to the bottom of the engagement groove 221, or alternatively, threaded all over the surface between both ends, which can improve the engagement effect, rigidity and tensile strength, and is also advantageous for assembling and disassembling the cover and the engagement member.

[0019] As described above, the spring hinge base structure of the present invention is able to provide high torsional load capacity through the combined structure of the cover and the engaging member and the use of different materials, ensuring the stability and service life of the entire structure even under high torsional loads. [Explanation of symbols]

[0020] 1 Spring hinge base structure 9 Main Unit 10 1st plate part 11 First pipe 12 Second pipe 20 Lock Unit 201 pins 21 Cover 211 First through hole 212 Groove 213 Flange 22 Engagement member 221 Engagement groove 214 Internal thread 222 Male thread 223 Outer surface 224 Non-threaded part 225 Annular spacer part 30 Elastic member 40 2nd plate part 41 Stopper part 411 Second Through Hole 50 Shaft member 60 Blocking member 70 second elastic member 80 Third plate part 90 Second shaft member 801 pins 100 Second blocking member 101 1st end plate 102 Intermediate plate 103 Second end plate

Claims

1. A spring hinge base structure, a main body having a first tubular body and a first plate portion fixedly connected to the first tubular body; a plurality of locking units each having a cover and an engaging member integrally connected to the cover, wherein each cover has a first through hole at the center thereof and a groove at one end thereof, each of the first through holes being located within a corresponding groove, each of the engaging members having an engaging groove that is engaged within the corresponding groove, one of the locking units being engaged with one end of the first pipe and moving together with the first pipe, and the other of the locking units being located at the other end of the first pipe and rotating relative to the first pipe; an elastic member whose both ends are engaged in the engaging grooves of the two lock units; a second plate portion having upper and lower ends on one side each protruding outward to form a stopper portion having a second through hole; A spring hinge base structure including an axial member that is inserted through the first through hole and the second through hole, wherein the second plate portion has an integral structure and is rotatably connected to the other lock unit via a blocking member so as to rotate integrally therewith, and the blocking member is adjustably connected to the other lock unit so as to abut between the second plate portion and the lock unit.

2. 2. The spring hinge base structure according to claim 1, wherein an internal thread is provided on an inner wall of the groove of each of said covers, and one end of each of said engaging members has an external thread that fits into said internal thread.

3. The spring hinge base structure of claim 1 , wherein the top of each cover includes an annularly extending flange, and the end of the first tube abuts against the flange.

4. The spring hinge base structure of claim 1 , wherein each of the covers is made of copper, aluminum, zinc alloy, or plastic fiber, and each of the engaging members has higher stiffness and tensile strength than the corresponding cover.

5. The spring hinge base structure of claim 4 , wherein the first tube is made of the same material as each of the covers.

6. The spring hinge base structure of claim 1 , wherein each of the covers and corresponding engaging members are two separate components that are removably assembled.

7. 2. The spring hinge base structure of claim 1, further comprising a second elastic member, a third plate, and a second shaft member, the main body having an integrally molded structure, and further comprising a second pipe, the first plate being connected between the first pipe and the second pipe, one of the locking units being engaged with one end of the second pipe and moving together with the second pipe, the other of the locking units being located at the other end of the second pipe and rotating relative to the second pipe, both ends of the second elastic member being engaged with the engaging grooves of the two locking units, respectively, the second shaft member being inserted through the first through-hole and one end of the third plate, the third plate having an integral structure and rotatably connected to one of the locking units via a second blocking member and rotating integrally therewith, the second blocking member being adjustably connected to the other of the locking units and abutting between the third plate and the locking units.

8. 8. The spring hinge base structure of claim 7, wherein the body is constructed from a single piece of material, the first plate portion includes a first end plate, an intermediate plate, and a second end plate, the first tube extends integrally from one side of the first end plate, the intermediate plate extends integrally from and is connected between the first tube and the second tube, the second end plate extends integrally from the second tube, and the intermediate plate is fixedly connected between the first end plate and the second end plate.

9. The spring hinge base structure of claim 8 , wherein the first end plate, the intermediate plate, and the second end plate have substantially the same width between the first tube and the second tube.

10. The spring hinge base structure of claim 1 , wherein each of the engagement members further includes an outer circumferential surface in which the engagement groove is drilled.

11. The spring hinge base structure according to claim 10, wherein the outer peripheral surface is provided with a thread from an edge to a bottom of the engagement groove.

12. The spring hinge base structure according to claim 1 , wherein each of the engagement members extends radially therethrough to form the engagement groove.

13. 2. The spring hinge base structure of claim 1, wherein the inner wall of the groove of each cover has a female thread, the engaging member further includes an outer peripheral surface, one end of the outer peripheral surface has a male thread for engaging with the female thread, and a non-threaded portion is provided near the male thread, and the engaging groove is formed by cutting the non-threaded portion.

14. The spring hinge base structure according to claim 13 , wherein the engagement groove is located entirely within the non-threaded portion.

15. The spring hinge base structure according to claim 14 , wherein both ends of the elastic member are fitted into the non-threaded portions, and the male threads of the engaging member are located completely outside the range of the non-threaded portions.

16. The spring hinge base structure according to claim 13 , wherein both ends of the elastic member form annular spacer portions between themselves and the outer circumferential surface of the engaging member.

17. The spring hinge base structure according to claim 13 , wherein, when viewed in the axial direction of the engaging member, the male thread is located entirely within the range of the outer circumferential surface of the engaging member.

Images