WO2020200011A1

WO2020200011A1 - Hinge structure

Info

Publication number: WO2020200011A1
Application number: PCT/CN2020/081144
Authority: WO
Inventors: 阮卜琴; 牛胜良
Original assignee: 浙江双友物流器械股份有限公司
Priority date: 2019-04-03
Filing date: 2020-03-25
Publication date: 2020-10-08
Also published as: CN110067807A; CN110067807B

Abstract

A hinge structure, comprising a pin shaft (3) and two torsion springs (4), wherein the two torsion springs (4) are connected after passing through the through holes in the two torsion springs (4) by means of the pin shaft (3); both ends of one of the torsion springs (4) are connected to a part one (1) by plug-in fitting, and both ends of the other torsion spring (4) are connected to a part two (2) by plug-in fitting. The hinge structure is used to hinge the part one (1) and the part two (2), and has the advantages such as convenient disassembly, large rotation range and low cost. The hinge structure solves the problems in the existing technology that the production process increase and a hinge affects a hinge object since the hinge is fixedly connected to the hinge object.

Description

A hinge structure

Technical field

The invention belongs to the technical field of machinery and relates to a hinge structure.

Background technique

Articulation is a very common connection method in the mechanical field, and when two parts are articulated, a related articulation structure is required.

Conventional articulated structures include direct articulation of two parts through a rotating shaft, or articulation of two parts through a hinge. For example, a game controller and its button structure disclosed in the Chinese Patent Literature (authorization announcement number: CN207871496U; application number: 201820204547.7), the game controller includes buttons and a bracket suitable for mounting on the PCB board of the game controller. The buttons are equipped with hinges. The lug, the hinge lug and the hinge seat of the bracket are hinged together by a pin. A torsion spring is arranged on the pin. One end of the torsion spring abuts on the hinge seat, and the other end of the torsion spring abuts on the button. The torsion spring can provide a reverse Torsional moment, so that the button can be pressed elastically. The articulated structure of this patent has some shortcomings in actual use: after the articulated structure is connected to the articulated object, the articulated structure is difficult to disassemble, so the articulated structure cannot meet the requirements of detachable articulation of the articulated object , Are used for occasions where the two parts do not need to be disassembled after they are hinged.

In order to meet the requirement of detachable articulation of articulated objects, some detachable hinge structures have also been proposed to realize the detachable articulation of two articulated objects. For example, a detachable hinge and a portable refrigerator with the hinge disclosed in Chinese Patent Literature (application number: 201620853953.7; authorization announcement number: CN205908173U), the detachable hinge includes an upper hinge and a lower hinge hinged to each other, and the upper hinge has a shaft sleeve , The lower hinge is provided with a hinge shaft and a connecting part for connecting the hinge shaft, and the hinge shaft is slidably inserted into the shaft sleeve along the axial direction to realize the detachable connection of the upper hinge and the lower hinge. When the detachable hinge is used on a portable refrigerator, the lower hinge is fixedly connected to the box body, and the upper hinge is fixedly connected to the door panel. In order to realize the detachable hinge of the hinged object, the detachable hinge adopts the hinge manufacturing as two detachable upper hinge and lower hinge, and the upper hinge and lower hinge are respectively fixedly connected to the two hinged objects (namely, the door panel and the lower hinge). Box). When such a structure is used for some articulated objects that require temporary articulation, there will be many problems. For example, logistics containers generally include a bottom pallet and a box connected to the upper part of the pallet. When transporting some scattered parts, the scattered parts need to be placed in the box for storage and transportation. When transporting some instruments that do not need to be placed or cannot be placed in the box, the box needs to be removed from the pallet and the pallet is used alone. At this time, using the above-mentioned detachable hinge to connect the box and the pallet requires separate hinges on the pallet and the box, which will increase the manufacturing process of the pallet. Moreover, in many cases, the pallet is separate In use, the hinge is always fixed on the tray, so it will affect the use and maintenance of the tray. In addition, during the use of the tray, the hinge is always fixed on the tray, which is likely to cause damage to the hinge. At this time, the hinge must be disassembled and replaced, which is troublesome.

There are various types of existing detachable hinges, but the conventional detachable hinge adopts a structure that makes the hinge itself two detachable parts to realize the function of detachable hinge. For example, the detachable hinge assembly, temporary pivot shaft and manufacturing method for vehicles disclosed in Chinese patent documents (publication number: CN108730323A), a pivot pin detachable power distribution cabinet door hinge (publication number: CN204060271U), a Disassembling folding hinges (publication number: CN204929499U) and detachable car door hinges (publication number: CN208184483) all adopt similar structures. When there are detachable hinges, the hinges need to be fixed on the hinged object. The production process increases, The hinges affect the use of hinged objects and other issues.

Summary of the invention

The purpose of the present invention is to solve the above-mentioned problems in the prior art, and propose a new type of hinge structure. The present invention solves the problem of increasing the production process caused by the need to fix the hinge on the hinged object when the hinge is detachable, and the hinge affects the hinge. Issues such as the use of objects.

The object of the present invention can be achieved by the following technical solutions: a hinge structure for hinged connection of part one and part two, characterized in that the hinge structure includes two torsion springs and a pin for connecting the two torsion springs The two torsion springs are connected through the through holes of the two torsion springs through the pin shaft, the two torsion springs can rotate relative to each other, and the two ends of one of the torsion springs are connected to the component one through plug-in fitting, The two ends of another torsion spring are connected to component two through plug-in fitting. When two torsion springs are connected to component one or component two through plug-in fitting, each torsion spring can rely on its own deformation to make each The two ends of the torsion spring are removed from the first part or the second part.

In this hinge structure, the pin passes through the through holes of the two torsion springs to realize the connection of the two torsion springs, and the two ends of one of the torsion springs are connected to component one, and the two ends of the other torsion spring are connected to the component Second, the hinged connection of component one and component two is realized. In this hinged structure, the first part and the second part are not directly connected by a pin to realize the hinged connection, but are connected by a torsion spring. Since the torsion spring itself is made of metal wire, the torsion spring has the characteristics of axial compression or axial tension, and the two ends of the torsion spring can also be bent and deformed, so the two ends of the torsion spring adopt a plug-in fitting method When connected to component one or component two, relying on the axial compression or axial tension of the torsion spring, or the bending deformation of the torsion spring end, can realize the removal of the two ends of the torsion spring from component one or component two . Therefore, by changing the traditional use of torsion springs, the articulated structure realizes the detachability between the hinge (that is, the torsion spring and the pin) and the hinged object (that is, the first part and the second part), thereby satisfying one of the two hinged objects. Need for detachable articulation. The torsion spring and pin shaft structure of the articulated structure are relatively simple and convenient to manufacture. Moreover, the articulated structure does not realize the detachable articulation of two articulated objects through the articulation structure itself can be disassembled into two parts, so there is no need to The related hinges are fixed on the hinged object, which simplifies the processing technology and avoids the problem that the fixed hinge on the hinged object affects the use of the hinged object. In addition, when the part 1 and the part 2 do not need to be hinged, the hinge is detached from the part 1 and the second part as a whole, thereby avoiding the damage of the part 1 and the second part to the hinge during use. Moreover, even if the hinge is damaged during the hinged connection of the first part and the second part, the hinge only needs to be directly disassembled for replacement. Compared with the way the hinge is fixed to the hinged object, the maintenance of the hinge structure is more convenient.

Although in the traditional hinge structure, there is a structure in which a torsion spring is sleeved on the shaft, in the conventional structure, the torsion spring is set up by pressing the two ends of the torsion spring against two parts respectively, so as to utilize the torsion of the torsion spring. Torque realizes the elastic rotation or reset of the two parts. The two parts of such a hinged structure are essentially hinged through a rotating shaft, and the torsion spring is only used as a part that cooperates with the hinged structure, that is, the torsion spring is added on the basis of the two parts that have been hinged to realize the two parts The elastic rotation or reset. None of the torsion springs in the prior art is used as a component of the hinge structure itself, that is, whether there is a torsion spring does not affect the hinge connection between the two components. In this articulated structure, two torsion springs are arranged on the pin shaft. The two torsion springs cooperate with the pin shaft to connect the first part and the second part and realize the mutual articulation. Therefore, it is compared with the traditional articulated structure. In contrast, the two torsion springs sleeved on the pin shaft in the articulated structure are not an increase in the number of torsion springs, but an increase in function. The setting methods, functions and functions of the torsion springs in the two articulated structures are completely different.

In the above-mentioned hinge structure, the two torsion springs are torsion spring one and torsion spring two, and both torsion springs include a spiral part that is rotatably sleeved on the pin shaft and two plugs extending from both ends of the spiral part. The connecting arm, the spiral part is a cylindrical spring structure with a number of axial gaps in the length direction, the two insertion arms of the torsion spring one are respectively inserted on the component one, and the two torsion springs are inserted The arms are respectively plugged into the second component, and the helical parts of the torsion spring one and the second torsion spring are axially compressed so that each plug-in arm can be separated from the first component or the second component. The connection between the torsion spring one and the component one is realized by the plug-in method, and the connection between the torsion spring two and the component two is realized by the plug-in manner, which is relatively convenient for installation and ensures a relatively simple structure. At the same time, the spiral part is a cylindrical spring structure with a number of axial gaps in the length direction, that is, the spiral part maintains an extended state in a free state, and can be axially compressed under the action of an external force. Therefore, when it is necessary to disassemble the hinged structure, only need to use a tool to axially compress the screw part, so that the plug arms at both ends of the screw part gradually approach until the plug arms are separated from the first or second part, so that the entire hinged structure will be removed from The

parts

1 and 2 are disassembled, and the installation process is opposite to the disassembly process. Therefore, the articulated structure has the characteristics of convenient disassembly and installation. Therefore, the hinge structure of the present invention not only realizes the hinged connection of component one and component two, but also realizes the detachable connection of component one and component two. In some occasions where two components need to be hinged and quickly disassembled, the present invention The articulated structure can fully meet the design requirements.

In the above-mentioned hinge structure, the first torsion spring and the second torsion spring are made of wire wound, the helical part of the first torsion spring is located in the axial gap between the helical parts of the second torsion spring, and the first torsion spring The axial gap of the spiral part is 1.5 to 4 times the diameter of the wire of the torsion spring two. For manufacturing convenience, preferably, the wire diameters of the torsion spring 1 and the torsion spring 2 are equal, and the axial gap of the spiral part is equal. The axial clearance of the helical part is greater than the diameter of the metal wire, so as to ensure that the torsion spring 1 and the torsion spring 2 can move relative to each other in the axial direction when the torsion spring 1 and the torsion spring 2 rotate relative to each other. The occurrence of seizure allows the torsion spring 1 and the torsion spring 2 to basically realize a 360° rotation, thereby ensuring that a relatively large angle of rotation can be achieved between the first part and the second part. At the same time, the axial gap of the spiral part is relatively large, and the axial compression distance of the spiral part can be ensured, so that the plug-in arm can be separated from the first part or the second part, which meets the requirements of more convenient and fast installation and disassembly process.

In the above-mentioned hinge structure, one end of the plug arm is connected to the spiral part, the other end of the plug arm is bent in a direction away from the spiral part to form a plug section, and the length of the plug section is along the length of the pin shaft. Extending in the direction, the plug-in arm is plugged into the first component or the second component through the plug-in section. The plug-in section is formed by directly bending the plug-in arms at both ends of the torsion spring, with a simple structure and easy processing. Since the plug-in section is bent in a direction away from the spiral portion, the plug-in section at both ends of the spiral portion will not be separated from the first part or the second part when the spiral part remains stretched. To disassemble the hinged structure, only need to use a tool to axially compress the spiral part, so that the plug-in sections at both ends of the spiral part gradually approach until the plug-in section is separated from the first part or the second part, so that the entire hinged structure is separated from the first part and the second part. The second part has been disassembled. The installation process is opposite to the disassembly process, and both disassembly and installation are more convenient.

In the above-mentioned hinge structure, the first part is provided with two insertion holes one, the second part is provided with two insertion holes two, and the insertion sections of the one and two insertion arms of the torsion spring are respectively They are inserted into the two insertion holes one, and the insertion sections of the two insertion arms of the torsion spring two are inserted into the two insertion holes two respectively. When processing the first part and the second part, it is only necessary to process the first or second inserting hole on the first and second parts, which is more convenient to manufacture and can simplify the hinge structure.

In the above-mentioned hinge structure, the aperture of the first insertion hole is greater than or equal to the diameter of the corresponding insertion section, and the aperture of the second insertion hole is greater than or equal to the diameter of the corresponding insertion section. When the aperture of the first or second plug-in hole is larger than the diameter of the corresponding plug-in section, the plug-in section can be easily inserted into the first plug-in hole or the second plug-in hole, the installation is more convenient, and the manufacturing precision requirements are lower. When the hole diameter of the first or second plug hole is equal to the diameter of the corresponding plug-in section, the plug-in section is positioned in the first plug hole or the second plug hole, and the connection stability is better. The rotation process of the second component is also relatively stable. There is a cylindrical surface fit between the first or second plug-in hole and the plug-in section. The plug-in section can rotate smoothly in the first plug-in hole or the second plug-in hole, which also makes the rotation process of the first and second components relatively Smooth.

In the above-mentioned hinge structure, the first part and the second part both have a hollow plate body, and the plate body has two oppositely arranged panels and a side plate connected between the sides of the two panels. A notch communicating with the inner cavity of the board is opened on the side of the connecting side plate, and insertion grooves are respectively formed at both ends of the notch. The insertion sections at one end of the torsion spring are respectively inserted into the two ends of the notch on the first part. In the groove, the insertion sections at the two ends of the torsion spring are respectively inserted into the insertion grooves at the two ends of the notch on the second component. The inner wall of the panel forms the bottom of the insertion groove, and the inner walls of the two panels form the side walls of the insertion groove, so that after the insertion section is inserted into the insertion groove, the insertion can be ensured during the process of rotating the first and second components The segment will not fall out of the socket.

In the above-mentioned hinge structure, when the outer wall of the side plate of the first component abuts against the outer wall of the side plate of the second component, the plug-in section on the first torsion spring and the plug-in section on the second torsion spring are pressed against the corresponding side. On the inner wall of the board. Since this hinged structure adopts a torsion spring structure for hinged connection, the torsion spring itself will have a restoring torsion after deformation. The plug section on the torsion spring 1 and the plug section on the torsion spring 2 are pressed against the inner wall of the corresponding side plate, thus forcing The side plates of component one and component two always abut against each other to form a certain positioning effect. Obviously, the articulated structure also has a positioning function that the traditional articulated structure does not have.

In the above-mentioned hinge structure, the slot width of the insertion slot is 2.5 to 6 times the diameter of the corresponding insertion section, and the connection between the inner wall of the side plate and the inner wall of the two panels is provided with a socket for inserting. A convex arc-shaped convex part is arranged between the two concave parts against which the connecting section abuts, and the surfaces of the arc-shaped convex part and the surfaces of the two concave parts are all arc-shaped transitional connections. The slot width of the plug-in slot is larger than the diameter of the plug-in section. Such a structure can facilitate the plug-in section to be inserted into the corresponding plug-in slot, making the assembly and disassembly process of the plug-in structure more convenient and faster. At the same time, the width of the insertion groove is relatively large, so that during the rotation of the first and second parts, if the first and second parts touch, the insertion section can also be displaced in the insertion groove, so that the parts The relative positions of the first and the second parts are changed to form an escape, so that the first and second parts can continue to rotate at a certain angle, so as to ensure a larger rotation angle between the first and second parts. Concave portions are formed on both sides of the arc-shaped convex portion, and the surfaces of the arc-shaped convex portion and the surfaces of the two concave portions are arc-shaped transitional connection, which can ensure the smooth displacement of the plug-in section in the plug-in groove , And it can ensure that the recessed part can position the plug-in section after the rotation is completed, and the stability of the hinge structure is improved.

In the above-mentioned hinge structure, the surface of the concave portion is a curved surface. The arc-shaped concave portion is adapted to the shape of the outer wall of the plug-in section, which can increase the stability of positioning the plug-in section.

In the above-mentioned hinge structure, the notch of the first component and the notch of the second component are arranged opposite to each other, and the pin is located on one side of the opening surrounded by the notch of the first component and the notch of the second component. This design ensures that the hinged structure has a large installation and removal space during installation and removal, so installation and removal are more convenient. Moreover, such a structure enables the part 1 and the part 2 to be turned toward the other side until they are completely abutted.

In the above-mentioned hinge structure, the pin shaft is provided with an anti-drop structure that can prevent the torsion spring 1 and the torsion spring 2 from detaching from the pin shaft. The anti-drop structure is directly arranged on the pin shaft to prevent the torsion spring 1 and the torsion spring 2 from being detached from the pin shaft, so that the hinge structure has good stability.

In the above-mentioned hinge structure, the anti-dropping structure includes an annular flange arranged along the axial direction of the pin shaft at one end of the pin shaft, and the other end of the pin shaft is fixedly sleeved with an anti-dropping cap. When installing, first sleeve the torsion spring 1 and the torsion spring 2 from one end of the pin to the pin, and then fix the anti-off cap on the other end of the pin to realize the anti-off of the torsion spring 1 and the torsion spring 2. . Such an anti-drop structure can facilitate the installation of the torsion spring one, the torsion spring two and the pin shaft.

In the above-mentioned hinge structure, the pin shaft is a rivet, the anti-dropping structure includes a head at one end of the rivet, and the end of the rivet rod has a stamped annular flange. The rivet structure has low cost and can ensure that the torsion spring one, the torsion spring two and the pin shaft are more convenient to install.

Compared with the prior art, the articulated structure has the following advantages:

1. In this articulated structure, component one and component two are not directly hinged together by the pin, but are connected to the pin via torsion spring one and torsion spring two respectively, so that component one and component two are in the process of rotating , The relative offset position of the first part and the second part can be changed, so that the first part and the second part can have a larger rotation angle range.

2. The hinge structure is connected to the first part and the second part through the torsion spring 1 and the torsion spring 2, so that the hinge structure can also be quickly disassembled.

3. In this hinged structure, component one and component two are not directly hinged together by a pin shaft, so the side surface of component one and component two can be rotated until the side surface is completely abutted.

4. In this hinged structure, part one and part two are both connected with torsion springs. The pin shaft is used to connect two torsion springs. The pin shaft is not directly connected with part one and part two, so the hinge structure is used for When the first part and the second part are hinged, the corresponding structure for the pin shaft to pass through can be omitted in the first part and the second part, so the hinged structure realizes the structural simplification. Moreover, the structure of the torsion spring and the pin shaft are relatively simple, and the processing is convenient. The torsion spring itself has an axial through hole, and the pin shaft passes through the through holes of the two torsion springs. Compared with the traditional hinge hinge method, it is not only convenient to manufacture but also The structure has also been simplified.

Description of the drawings

FIG. 1 is a three-dimensional schematic diagram of a torsion spring one and a torsion spring two connected to a pin in the first embodiment of the present invention.

Fig. 2 is a front view of the first torsion spring and the second torsion spring connected with the pin in the first embodiment of the present invention.

Fig. 3 is a three-dimensional structural diagram of the first embodiment of the hinge structure.

FIG. 4 is a schematic diagram of the three-dimensional structure on the back of FIG. 3.

Fig. 5 is an enlarged view of A in Fig. 4.

Fig. 6 is an exploded view of the first embodiment of the hinge structure.

Fig. 7 is a partial enlarged view of the first embodiment of the hinge structure.

Fig. 8 is the first embodiment of the first embodiment and the first embodiment of the second rotating process.

Figure 9 is the second embodiment of the rotation process of the first part and the second part.

Fig. 10 is the third embodiment of the rotation process of part one and part two in the first embodiment.

Figure 11 is an exploded view of the second embodiment of the hinge structure.

Figure 12 is a schematic diagram of the application of the hinge structure to a folding cargo box.

In the figure, 1. component one; 1a, plug hole one; 2. component two; 2a, plug hole two; 3. pin shaft; 31, annular flange; 32, anti-off cap; 4. torsion spring; 41, Torsion spring one; 42, torsion spring two; 6, helical part; 7, plug-in arm; 71, plug-in section; 8, plate body; 81, panel; 82, side plate; 821, recessed part; 822, arc Protrusions; 83, gap; 84, insertion groove; 9, box body; 91, box board; 10, tray;.

detailed description

The following are specific embodiments of the present invention combined with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

Example one

This hinge structure is used to hinge component one 1 and component two 2. As shown in Figures 1 and 2, the hinge structure includes a pin 3 on which two torsion springs 4 and two torsion springs 4 are sleeved. They are torsion spring one 41 and torsion spring two 42 respectively, and torsion spring one 41 and torsion spring two 42 can perform relative rotation. The first torsion spring 41 and the second torsion spring 42 are made of metal wire. Both the first torsion spring 41 and the second torsion spring 42 include a spiral part 6 which is rotatably sleeved on the pin shaft 3 and two spiral parts 6 respectively. The plug arm 7 extends from the end, the plug arm 7 is L-shaped, one end of the plug arm 7 is connected to the spiral portion 6, and the other end of the plug arm 7 is bent in a direction away from the spiral portion 6 to form a plug section 71 , And the length direction of the insertion section 71 extends along the length direction of the pin shaft 3. The inserting sections 71 at both ends of the torsion spring 41 are arranged coaxially or substantially at a coaxial position, and the inserting sections 71 at both ends of the torsion spring 42 are arranged coaxially or substantially at a coaxial position. The spiral part 6 of torsion spring one 41 and torsion spring two 42 are both cylindrical spring structures with a number of axial gaps δ in the length direction. The wire diameters of torsion spring one 41 and torsion spring two 42 are the same. The axial gaps are equal, the helical part 6 of torsion spring 41 is located in the axial gap of torsion spring two 42 helical part 6, the axial gap δ of torsion spring 41 helical part 6 is 2 of the wire diameter of torsion spring two 42 This ensures that the torsion spring 41 and the torsion spring 42 can move relative to each other in the axial direction when the torsion spring 41 and the torsion spring 42 rotate relative to each other, so as to avoid the torsion spring 41 and the torsion spring 42 from being seized when they rotate relative to each other. The first torsion spring 41 and the second torsion spring 42 can basically realize a 360° rotation, so as to ensure that the component one and the component two can achieve a larger angle of rotation. At the same time, the axial gap δ of the spiral part 6 is relatively large, which can ensure that the axial compression distance of the spiral part 6 is large, so that the plug arm 7 can be separated from the component 1 or the component 2, which can meet the requirements of the installation and disassembly process. Convenient and fast on request.

As shown in FIG. 1 and FIG. 2, the pin shaft 3 is provided with an anti-drop structure that can prevent the torsion spring 41 and the torsion spring 42 from being separated from the pin shaft 3. In the hinged structure, the anti-dropping structure includes an annular flange 31 located at one end of the pin shaft 3 and axially arranged along the pin shaft 3, and the other end of the pin shaft 3 is fixedly sleeved with an anti-dropping cap 32. During installation, first sleeve the torsion spring 41 and the torsion spring 42 from one end of the pin 3 to the pin 3, and then fix the anti-drop cap 32 on the other end of the pin 3 to realize the torsion spring 41 And torsion spring two 42 anti-off. The torsion spring one 41, the second torsion spring 42 and the pin shaft 3 of the anti-dropping structure are more convenient to install. The anti-drop structure is directly provided on the pin shaft 3 to prevent the torsion spring 41 and the torsion spring second 42 from being detached from the pin shaft 3, so that the hinge structure is stable and simple to manufacture.

As shown in Figures 3 to 6, the component 1 is connected to the pin 3 through the torsion spring 41 and the two ends of the torsion spring 41 are connected to the component 1, and the component 2 2 is connected to the pin 3 through the torsion spring 42 The two ends of the second torsion spring 42 are connected to the second component 2. In this implementation, a hollow plate is used as an example to introduce the principle of the articulated structure, but the articulated structure is not limited to the articulation between hollow plates. Specifically, the two plug arms 7 of the torsion spring one 41 are plugged into the component one through the plug section 71 respectively, and the two plug arms 7 of the torsion spring two 42 are plugged into the component two through the plug section 71 respectively. On 2, the helical part 6 of the torsion spring one 41 and the torsion spring two 42 are axially compressed so that each plug-in arm 7 can be separated from the component one 1 or the component two 2. When the spiral portion 6 is in a free state, it remains stretched. The plug-in sections 71 at both ends of the spiral portion 6 will not be separated from the component 1 or the component 2, but can be axially compressed under the action of external force. Therefore, when the hinge structure needs to be disassembled, only the screw part 6 needs to be axially compressed with a tool, so that the plug sections 71 at both ends of the screw section 6 gradually approach until the plug sections 71 are separated from the component one 1 or the component two 2. In this way, the entire hinge structure is disassembled from the component one 1 and the component two 2. The installation process is opposite to the disassembly process, and both disassembly and installation are more convenient. Therefore, the articulated structure not only realizes the hinged connection of component one 1 and component two 2, but also realizes the detachable connection of component one 1 and component two 2, which is very convenient for disassembly and assembly. Therefore, some two components need to be hinged and connected. Where it is necessary to quickly disassemble, the hinge structure of the present invention can fully meet the design requirements.

As shown in Figs. 3 and 7, both part 1 and part 2 have a hollow plate body 8. The plate body 8 has two oppositely arranged panels 81 and a side plate 82 connected between the sides of the two panels 81. The board body 8 is provided with a gap 83 connected to the inner cavity of the board body 8 on the side connecting the side board 82, and an insertion groove 84 is formed at both ends of the gap 83, the gap 83 of the part 1 and the gap 83 of the part 2 Relatively arranged, the insertion sections 71 at both ends of the torsion spring 41 are respectively inserted into the insertion slots 84 at both ends of the notch 83 on the component one, and the insertion sections 71 at both ends of the torsion spring 42 are respectively inserted into the notch on the component two 2. 83 in the insertion slots 84 at both ends. The inner wall of the panel 81 forms the bottom of the insertion groove 84, and the inner walls of the two panels 81 form the side walls of the insertion groove 84, so that after the insertion section 71 is inserted into the insertion groove 84, the

rotating parts

1 and 2 In the process of 2, it can be ensured that the plug section 71 will not fall out of the plug groove 84.

The slot width of the inserting groove 84 is three times the diameter of the inserting section 71. The connection between the inner wall of the side plate 82 and the inner wall of the two panels 81 is provided with a concave portion 821 for the inserting section 71 to abut, the concave portion 821 The surface of is arc, and there is a convex arc-shaped protrusion 822 between the two concave parts 821, and the surfaces of the arc-shaped protrusion 822 and the surfaces of the two concave parts 821 are arc-shaped transitional connection. Concave portions 821 are formed on both sides of the arc-shaped convex portion 822, and the surfaces of the arc-shaped convex portion 822 and the surfaces of the two concave portions 821 are all arc-shaped transitional connections, which can ensure that the plug section 71 is in the plug groove The smooth displacement within 84 can ensure that the recessed portion 821 can position the insertion section 71 after the rotation is completed, and the stability of the hinge structure is improved.

In this articulated structure, part 1 and part 2 are not directly hinged together by pin 3, but are connected to pin 3 through torsion spring 41 and

torsion spring

2, 42 respectively, so that part 1 and part 2 2 During the process of rotation, not only the position of the pin 3 relative to the part 1 and the part 2 2 can be changed, but the torsion spring itself can also be deformed, so that the relative offset between the part 1 and the part 2 can occur. The following describes the principle of the articulated structure in conjunction with the drawings:

As shown in Figure 3, when the outer wall of the side plate 82 of the part 1 abuts against the outer wall of the side plate 82 of the part 2, the plug section 71 on the torsion spring one 41 and the plug section 71 on the torsion spring two 42 are both pressed against On the inner wall of the corresponding side plate 82, the pin 3 is located on one side of the opening surrounded by the notch 83 of the component one 1 and the notch 83 of the component two. This design ensures that the hinged structure has a large installation and removal space during installation and removal, so installation and removal are more convenient. At this time, because the hinged structure adopts a torsion spring structure for hinged connection, the torsion spring itself will have a restoring torsion after the torsion spring is deformed. The inner wall of the plate 82 forces the side plates 82 of the part 1 and the part 2 to always abut against each other to form a certain positioning effect. Obviously, the articulated structure also has a positioning function that the traditional articulated structure does not have. In the state of Fig. 3, part 1 and part 2 can be rotated from two directions.

As shown in FIG. 8, the part 1 and the part 2 can be rotated to a state where the plate body 8 of the part 1 and the plate body 8 of the part 2 2 are perpendicular to each other. At this time, although the plate body 8 of the part 1 and the plate 8 of the part 2 have been abutted, the relative offset of the part 1 and the part 2 is changed by the change of the position of the pin 3 and the deformation of the torsion spring. Position so that part 1 and part 2 can continue to rotate to the state shown in Fig. 9, and then rotate to the state shown in Fig. 10, so that the plates 8 of part 1 and part 2 are completely abutted together . Obviously, the articulated structure not only has a wide range of rotation angles, but also realizes that the plate bodies 8 of the component one 1 and the component two 2 are completely abutted.

As shown in Fig. 10, during the rotation of part 1 and part 2, if part 1 and part 2 are in contact with each other, due to the large width of the insertion groove 84, the insertion section 71 can still be inserted Displacement in the connecting groove 84. Figure 10 shows the state before the displacement. At this time, the inserting section 71 shown in the figure is located in the concave portion 821 on the right side. By moving the inserting section 71 into the concave portion 821 on the left side , Can increase the distance between part 1 and part 2 to form a avoidance, so that part 1 and part 2 can continue to rotate at a certain angle, so as to ensure a larger rotation angle between part 1 and part 2 .

As shown in Figure 12, this hinged structure can be used to fold the cargo box to detachably hinge the box plate 91 of the box 9 and the pallet 10. The use of this hinged structure can ensure that the box plate 91 of the box 9 can be Flip toward the top surface of the pallet 10 to achieve folding, reducing the storage space of the folded container. Moreover, when the tray 10 needs to be used alone, it is only necessary to remove each box board 91. At this time, there is no related hinges fixed on the tray 10, so there will be no problems such as the increase in production process caused by the fixed hinges on the tray 10 and the hinges affecting the use of the tray. Of course, all the box boards 91 are disassembled and stacked on the pallet 10 to reduce the storage space of the folded container.

Example two

The structure and principle of this embodiment are basically the same as that of the first embodiment. The difference lies in: as shown in Figure 11, there are two insertion holes 1a on part 1 and two insertion holes on part 2 2. Hole two 2a, torsion spring one 41, the plug sections 71 of the two plug arms 7 are respectively inserted in the two plug holes 1a, and the torsion spring two 42 plug sections 71 of the two plug arms 7 are respectively inserted In the two plug holes 2a. When processing component one 1 and component two 2, it is only necessary to process the plug hole one 1a or plug hole two 2a on the component one 1 and the component two 2, which is more convenient to manufacture. In the actual manufacturing process, the hole diameter of the plug hole 1a can be greater than or equal to the diameter of the corresponding plug section 71, and the hole diameter of the plug hole two 2a can also be greater than or equal to the diameter of the plugged plug section 71. . When the aperture of the first insertion hole 1a or the second insertion hole 2a is larger than the diameter of the corresponding insertion section 71, the insertion section 71 can be easily inserted into the insertion hole 1a or the second insertion hole 2a, and the installation is more convenient. The manufacturing accuracy requirements are low. When the hole diameter of the first insertion hole 1a or the second insertion hole 2a is equal to the diameter of the corresponding insertion section 71, the insertion section 71 is positioned in the insertion hole 1a or the second insertion hole 2a, and the connection is more stable. Good, so the rotation process of part 1 and part 2 is relatively stable. There is a cylindrical fit between the first insertion hole 1a or the second insertion hole 2a and the insertion section 71, and the insertion section 71 can rotate smoothly in the insertion hole 1a or the second insertion hole 2a, thereby also making the first part The rotation process of 1 and part 2 is relatively smooth.

Example three

The structure and principle of this embodiment are basically the same as that of the first embodiment. The difference lies in: the torsion spring 41 and the torsion spring 42 are made of wires with the same diameter, and the axial gap δ between the two is equal, The axial gap δ of the helical portion 6 of the first spring 41 is 1.5 times the wire diameter of the second torsion spring 42.

Example four

The structure and principle of this embodiment are basically the same as that of the first embodiment. The difference lies in: the torsion spring 41 and the torsion spring 42 are made of wires with the same diameter, and the axial gap δ between the two is equal, The axial gap δ of the spiral portion 6 of the spring one 41 is 4 times the diameter of the wire of the torsion spring two 42.

Example five

The structure and principle of this embodiment are basically the same as those of the first embodiment. The difference lies in that: the pin 3 is a rivet, the anti-drop structure includes a head at one end of the rivet, and the end of the rivet body has a stamped annular flange. The cost of the rivet structure is low, and it can ensure that the torsion spring 41, the torsion spring 42 and the pin 3 are more convenient to install.

Example Six

The structure and principle of this embodiment are basically the same as that of the first embodiment. The difference lies in that: the torsion spring 41 and the torsion spring 42 are wound by wires of the same diameter, so the diameters of the two insertion sections 71 are the same. The slot width of the inserting groove 84 on the component one 1 and the component two 2 are both 2.5 times the diameter of the inserting section 71.

Example Seven

The structure and principle of this embodiment are basically the same as that of the first embodiment. The difference lies in that: the torsion spring 41 and the torsion spring 42 are wound by wires of the same diameter, so the diameters of the two insertion sections 71 are the same. The slot width of the inserting groove 84 on the component one 1 and the component two 2 is 6 times the diameter of the inserting section 71.

The specific embodiments described herein are merely examples to illustrate the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the specific embodiments described or use similar alternatives, but they will not deviate from the spirit of the present invention or exceed the definition of the appended claims. Range.

Although this article mostly uses 1, component one; 1a, plug hole one; 2. component two; 2a, plug hole two; 3. pin shaft; 31, annular flange; 32, anti-drop cap; 4. twist Spring one; 5. Torsion spring two; 6. Spiral part; 7. Insert arm; 71. Insert section; 8. Plate body; 81. Panel; 82. Side plate; 821. Concave part; 822. Arc convex Starting part; 83, gap; 84, socket groove and other terms, but the possibility of using other terms is not excluded. These terms are used only to describe and explain the essence of the present invention more conveniently; to interpret them as any additional limitation is contrary to the spirit of the present invention.

Claims

A hinge structure used to hinge component one (1) and component two (2), characterized in that the hinge structure includes two torsion springs (4) and a pin for connecting the two torsion springs (4) The shaft (3), the two torsion springs (4) are connected by the pin shaft (3) through the through holes of the two torsion springs (4), the two torsion springs (4) can rotate relatively, one of which The two ends of the torsion spring (4) are connected to the component one (1) through plug-in fitting, and the two ends of the other torsion spring (4) are connected to the component two (2) through plug-in fitting. When two torsion springs (4) When connected to component one (1) or component two (2) by plug-in fitting, each torsion spring (4) can rely on its own deformation to make the two ends of each torsion spring (4) separate from component one. Disassemble the upper part or the second part.
The hinge structure according to claim 1, wherein the two torsion springs (4) are torsion spring one (41) and torsion spring two (42) respectively, and the two torsion springs (4) both include rotating sleeves The spiral portion (6) on the pin shaft (3) and two plug arms (7) respectively extending from both ends of the spiral portion (6), the spiral portion (6) has a number of axial gaps in the length direction In the cylindrical spring structure, the two insertion arms (7) of the torsion spring one (41) are respectively inserted on the component one (1), and the two insertion arms (7) of the torsion spring two (42) They are respectively plugged into the second part (2), and the helical parts (6) of the first torsion spring (41) and the second torsion spring (42) are axially compressed so that each plug-in arm (7) can be separated from the first part (1). ) Or part two (2).
The hinge structure according to claim 2, wherein the first torsion spring (41) and the second torsion spring (42) are both made of wire wound, and the helical portion ( 6) Located in the axial gap of the spiral portion (6) of the torsion spring two (42), the axial gap of the spiral portion (6) of the torsion spring one (41) is the wire diameter of the torsion spring two (42) 1.5 times-4 times.
The hinge structure according to claim 3, wherein one end of the plug arm (7) is connected to the spiral portion (6), and the other end of the plug arm (7) faces away from the spiral portion (6). Bending to form a plug-in section (71), and the length of the plug-in section (71) extends along the length of the pin shaft (3), and the plug-in arm (7) is plugged into the component through the plug-in section (71) One (1) or part two (2).
The hinge structure according to claim 4, wherein the first part (1) is provided with two insertion holes one (1a), and the second part (2) is provided with two insertion holes two (2a), the plug sections (71) of the two plug arms (7) of the torsion spring one (41) are respectively inserted into the two plug holes (1a), and the torsion spring two (42) The insertion sections (71) of the two insertion arms (7) of) are respectively inserted in the two insertion holes (2a).
The hinge structure according to claim 5, wherein the aperture of the first insertion hole (1a) is greater than or equal to the diameter of the corresponding insertion section (71), and the second insertion hole (2a) The diameter of the hole is greater than or equal to the diameter of the corresponding plug-in section (71).
The hinge structure according to claim 4, characterized in that, the first part (1) and the second part (2) each have a hollow board (8), and the board (8) has two oppositely arranged The panel (81) and the side panel (82) connected between the sides of the two panels (81), the panel body (8) is provided with a panel body (8) on the side connecting the side panel (82) A gap (83) communicated with the inner cavity and an insertion groove (84) is formed at both ends of the gap (83), and the insertion sections (71) at both ends of the torsion spring one (41) are respectively inserted into the component one (1) In the insertion slots (84) at both ends of the upper notch (83), the insertion sections (71) at both ends of the second torsion spring (42) are respectively inserted into the insertion slots at both ends of the upper notch (83) of the second component (2) (84) Within.
The hinge structure according to claim 7, characterized in that the slot width of the insertion groove (84) is 2.5-6 times the diameter of the corresponding insertion section (71), and the side plate (82) ) The joints between the inner wall and the inner walls of the two panels (81) are respectively provided with recesses (821) for the insertion section (71) to abut, and there is a convex arc-shaped protrusion between the two recesses (821) The surface of the arc-shaped convex portion (822) and the surfaces of the two concave portions (821) are all arc-shaped transitional connections.
The hinge structure according to claim 8, wherein the surface of the concave portion (821) is a curved surface.
The hinge structure according to claim 7 or 8 or 9, characterized in that the notch (83) of the first part (1) and the notch (83) of the second part (2) are arranged oppositely, and the part one (1) When the outer wall of the side plate (82) of the second part (2) abuts against the outer wall of the side plate (82) of the second part (2), the plug section (71) on the first torsion spring (41) and the second torsion spring (42) The upper plug-in sections (71) are pressed against the inner wall of the corresponding side plate (82), and the pin (3) is located in the notch (83) of part one (1) and the notch (2) of part two (2). 83) One side of the opening enclosed by.
The hinge structure according to any one of claims 1 to 9, characterized in that the pin shaft (3) is provided with a pin shaft (3) that can prevent the torsion spring one (41) and the torsion spring two (42) from being separated from the pin shaft (3). ) Anti-drop structure.
The hinge structure according to claim 11, characterized in that the anti-dropping structure comprises an annular flange (31) located at one end of the pin shaft (3) and axially arranged along the pin shaft (3), and the pin shaft ( 3) The other end of the fixed sleeve is provided with an anti-drop cap (32).
The hinge structure according to claim 11, characterized in that the pin (3) is a rivet, the anti-fall structure includes a head at one end of the rivet, and the end of the rivet rod has a stamped annular turn along.