Bending jig

Abstract

The invention provides a bending jig which comprises a base, a transmission mechanism, two supporting plates and two connecting rod structures, the two supporting plates are used for supporting a first part and a second part of a folding module respectively, the base is located between the two supporting plates, and the two connecting rod structures are arranged on the base. The base and the two supporting plates are connected through the two connecting rod structures respectively, the two supporting plates rotate relatively to be folded or unfolded through the transmission mechanism, and when the two supporting plates are folded, a containing space is formed between the two connecting rod structures. According to the bending jig, when the bending jig is folded, the containing space is formed between the two connecting rod structures, a water drop shape formed after a folding module placed on the bending jig is folded is located between the two connecting rod structures, and a space is reserved for a folding part of the folding module. In addition, the folding jig cannot shield the side face of the folding module, and the water drop morphology of the folding module and displacement of all layers in the module can be observed conveniently.

Description

Technical Field

[0001] The present invention belongs to the technical field of jigs, and more specifically, relates to a bending jig. Background Art

[0002] The structure of a folding screen mobile phone is similar to that of a hinge and can be bent. Before the folding module leaves the factory, it is necessary to observe the water drop bending area, compare the actual water drop morphology with the simulated water drop morphology, and observe the displacement of each stack of the folding module to evaluate the bending performance of the folding module material. When performing a bending test on the folding module, the folding module can be placed on a bending jig, and the bending jig can be bent to achieve the bending of the folding module. However, the current structure of the bending jig needs to be improved. Summary of the invention

[0003] The purpose of the embodiments of the present invention is to provide a bending jig to solve the technical problem that the bending jig structure in the prior art needs to be improved.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a bending jig, including a base, a transmission mechanism, two support plates and two connecting rod structures, the two support plates are respectively used to support the first part and the second part of the folding module, the base is located between the two support plates, the base and the two support plates are respectively connected by the two connecting rod structures, and the two support plates are folded or unfolded by relative rotation through the transmission mechanism, and when the two support plates are folded, an accommodating space is formed between the two connecting rod structures.

[0005] In the above scheme, the bending jig includes a base, a transmission mechanism, two support plates and two connecting rod structures. The base and the support plates are connected by the connecting rod structure, and the two support plates are connected by the transmission mechanism. When the two support plates rotate relative to each other, the transmission mechanism keeps the two support plates linked, and the connecting rod structure can be driven to rotate through the support plates, so that when the bending jig is folded, a accommodating space is formed between the two connecting rod structures, and the water drop morphology formed by the folding module placed on the bending jig after folding is located between the two connecting rod structures, reserving space for the folding part of the folding module. Moreover, the folding jig will not block the side of the folding module, which is convenient for observing the water drop morphology of the folding module and the displacement of each layer inside the module.

[0006] Optionally, the transmission mechanism includes a first gear and a second gear meshing with each other, the first gear and the second gear are both rotatably disposed on the base, one of the support plates is used to drive the first gear to rotate, and the other support plate is used to drive the second gear to rotate.

[0007] In the above scheme, by setting the first gear and the second gear, the two support plates can be synchronously moved in opposite directions, which is the same as the movement form of the first part and the second part in the folding module, and the two support plates can always be close to the first part and the second part. In addition, the structural strength of the gear structure is relatively large, and it is not easy to be damaged during multiple meshing processes. At the same time, the first gear and the second gear will not occupy the peripheral space of the folding module, and will not block the peripheral side of the folding module, which is convenient for observing the folding module.

[0008] Optionally, a first sliding rod is fixed to the outer side of the first gear, and one of the support plates has a sliding hole for the first sliding rod to extend into; and / or, a second sliding rod is fixed to the outer side of the second gear, and the other support plate has a sliding hole for the second sliding rod to extend into.

[0009] In the above scheme, by setting the first sliding rod, the rotation of one of the support plates can drive the rotation of the first gear, and by setting the second sliding rod, the rotation of the other support plate can drive the rotation of the second gear, thereby realizing the linkage between the two support plates.

[0010] Optionally, the support plate is provided with a sliding connection portion protruding along the thickness direction thereof, and the sliding hole is opened in the sliding connection portion.

[0011] In the above scheme, the sliding connection part is provided to realize the sliding connection between the support plate and the first sliding rod, and the support plate and the second sliding rod, thereby realizing the meshing movement of the first gear and the second gear.

[0012] Optionally, the base has two installation plates that are spaced apart from each other, and the first gear and the second gear are both mounted between the two installation plates.

[0013] In the above solution, two mounting plates are provided to provide mounting positions and movement spaces for the first gear and the second gear, and the space formed between the two mounting plates is used for the first gear and the second gear to rotate.

[0014] Optionally, the connecting rod structure includes a fixedly connected connecting rod portion and a seam strip, one end of the connecting rod portion is rotatably connected to the support plate, and the other end of the connecting rod portion is rotatably connected to the base, and when the two support plates are folded, the two sides of the two seam strips facing each other are set at an acute angle.

[0015] In the above scheme, the support plate and the base can be connected by setting the connecting rod part, so that the support plate and the base are linked to each other. By setting the seam strip, the gap between the support plate and the base can be filled when the bending jig is folded, thereby shielding the folding part of the folding module.

[0016] Optionally, the connecting rod portion and the transmission mechanism are arranged at one end of the base in the length direction thereof.

[0017] In the above scheme, the connecting rod part and the transmission mechanism only occupy one end of the bending fixture in the length direction, and there is no structure blocking the other end. The folding part and part of the surrounding side of the folding module are exposed, which is convenient for observing the folding module.

[0018] Optionally, a first hinged portion is protruded on the support plate, a second hinged portion is protruded on the base, and two ends of the connecting rod portion are respectively hinged to the first hinged portion and the second hinged portion.

[0019] In the above scheme, by setting a first hinge part on the support plate and a second hinge part on the base, a multi-rod mechanism is formed between the support plate and the base through the connecting rod part, the transmission chain is stable, and the folding and unfolding of the bending jig is smoother.

[0020] Optionally, the support plate has a recessed portion on one side close to the connecting rod portion, and the first hinged portion is formed by a protrusion on the inner wall of the recessed portion.

[0021] In the above solution, the first hinge part is at least partially located in the recessed part, and there is sufficient movable space around the first hinge part for the connecting rod part to rotate so as to avoid interference with the support plate and not occupy the thickness space of the support plate.

[0022] Optionally, the base includes a substrate, two second hinged parts fixed on the substrate, and a mounting plate for mounting the transmission mechanism, and the second hinged parts and the mounting plate are arranged along the length direction of the substrate.

[0023] In the above solution, the positions of the two second hinged parts and the mounting plate are staggered, which facilitates the layout of the two connecting rod structures and the transmission mechanism to avoid structural interference.

[0024] Optionally, the base further includes a strip portion fixed on the base plate, the length direction of the strip portion is parallel to the rotation center axis of the support plate, and when the two support plates are folded, the strip portion is clamped between the two seam strips.

[0025] In the above solution, the strip-shaped portion is provided to make the seam strip more stable when the bending jig is in the folded state, thereby reducing the shaking of the seam strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A three-dimensional structural diagram of a bending jig provided in an embodiment of the present invention in an unfolded state;

[0028] Figure 2 for Figure 1 A partial enlarged view of the connecting rod structure and the transmission mechanism;

[0029] Figure 3 An exploded structural diagram of a bending jig provided in an embodiment of the present invention;

[0030] Figure 4 A three-dimensional structural diagram of a bending jig in a folded state provided by an embodiment of the present invention;

[0031] Figure 5 A side view of a bending jig provided in an embodiment of the present invention in a folded state.

[0032] Among them, the reference numerals in the figure are:

[0033] 10-support plate; 11-first hinge part; 12-sliding connection part; 121-sliding hole; 13-recessed part; 20-base; 21-substrate; 22-second hinge part; 23-mounting plate; 24-strip part; 30-transmission mechanism; 31-first gear; 311-first sliding rod; 32-second gear; 321-second sliding rod; 40-connecting rod structure; 41-connecting rod part; 42-slit strip. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0036] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] The structure of a folding screen mobile phone is similar to that of a hinge and can be bent. Before the folding module leaves the factory, it is necessary to observe the water drop bending area, compare the actual water drop morphology with the simulated water drop morphology, and observe the displacement of each stack of the folding module to evaluate the bending performance of the folding module material. When performing a bending test on the folding module, the folding module can be placed on a bending jig, and the bending jig can be bent to achieve the bending of the folding module. However, the current structure of the bending jig needs to be improved.

[0039] The present invention proposes a bending jig, wherein two support plates 10 of the bending jig are connected by a transmission structure, so that the two support plates 10 rotate in conjunction with each other to simulate the bending movement of a folding module. A base 20 is arranged between the two support plates 10, and the support plates 10 and the base 20 are connected by a connecting rod structure 40. After the bending jig is folded, an accommodating space is formed between the connecting rod structures 40, and the folding part of the folding module is located in the accommodating space, which will not affect the water drop shape of the folding part of the folding module.

[0040] The bending jig provided in the embodiment of the present invention is now described. The bending jig is used to bend the folding module, which includes a first part and a second part that are rotatably connected. When the folding module is flattened, the first part and the second part are located in the same plane. When the folding module is folded, the first part and the second part are stacked. The function of the bending jig is to make the first part and the second part of the folding module rotate relative to each other.

[0041] Please also read Figures 1 to 5The bending jig includes a base 20, a transmission mechanism 30, two support plates 10 and two connecting rod structures 40. The two support plates 10 are respectively used to support the first part and the second part of the folding module. The base 20 is located between the two support plates 10. The base 20 and the two support plates 10 are respectively connected by two connecting rod structures 40, and the two support plates 10 are relatively rotated and folded or unfolded through the transmission mechanism 30. When the two support plates 10 are folded, a accommodating space is formed between the two connecting rod structures 40.

[0042] The support plate 10 is the main structure of the bending jig. The two support plates 10 are used to support the first part and the second part of the folding module respectively. When the bending jig is in use, the first part is fixed on one of the support plates 10, and the second part is fixed on the other support plate 10. The two support plates 10 rotate relative to each other, so that the first part and the second part rotate relative to each other. Among them, the support plate 10 is a plate-shaped structure, and its size can be equal to the first part and the second part of the folding module, or it can be larger or smaller than the size of the first part and the second part.

[0043] The transmission mechanism 30 is used to transmit and connect the two support plates 10 so that the two support plates 10 are linked, that is, one support plate 10 moves simultaneously with the other support plate 10. Generally speaking, the movement of the two support plates 10 is a synchronous and reverse rotational movement, that is, the two support plates 10 rotate closer or rotate away at the same time, which is similar to the folding and unfolding movement of the folding module.

[0044] The base 20 is located between the two support plates 10. When the bending jig is in a flattened state, the two support plates 10 and the base 20 are in a planar state together. When the bending jig is in a folded state, there needs to be a thickness space between the two support plates 10 to accommodate the folding module. By setting the base 20, the two support plates 10 can be spaced apart from each other. If the base 20 and the corresponding connecting rod structure 40 are not set, there will be no thickness space to accommodate the folding module after the two support plates 10 are folded.

[0045] There are two connecting rod structures 40, one of which connects the base 20 and one of the support plates 10, and the other connecting rod structure 40 connects the base 20 and the other support plate 10. When the two support plates 10 rotate relative to each other, the two connecting rod structures 40 also generate rotational motion. When the two support plates 10 are folded, that is, when the bending jig is folded, the folding module is also folded accordingly, and the folding part of the folding module is in the shape of a water drop, and an accommodation space is formed between the two connecting rod structures 40 to avoid the water drop-shaped structure at the folding part of the folding module, providing sufficient avoidance and observation space for the folding module.

[0046] The surfaces of the folding modules that are in close contact with each other in the folded state are the inner side of the folding modules, the surface of the folding modules that is exposed and has a larger area in the folded state is the outer side of the folding modules, and the surface connecting the inner side and the outer side is the peripheral side of the folding modules. In the bending jig provided by the present invention, the base 20, the connecting rod structure 40, the transmission mechanism 30, etc. are all arranged on the outer side of the folding module, which will not block the peripheral side of the folding module, and will not affect the observation of the water drop morphology and interlayer displacement of the folding module.

[0047] The bending jig in the above embodiment includes a base 20, a transmission mechanism 30, two support plates 10 and two connecting rod structures 40. The base 20 and the support plate 10 are connected by the connecting rod structure 40, and the two support plates 10 are connected by the transmission mechanism 30. When the two support plates 10 rotate relative to each other, the transmission mechanism 30 keeps the two support plates 10 linked, and the connecting rod structure 40 can be driven to rotate by the support plate 10, so that when the bending jig is folded, a holding space is formed between the two connecting rod structures 40, and the water drop shape formed by the folding module placed on the bending jig after folding is located between the two connecting rod structures 40, and space is reserved for the folding part of the folding module. Moreover, the folding jig will not block the side of the folding module, which is convenient for observing the water drop shape of the folding module and the displacement of each layer inside the module.

[0048] In some embodiments of the present invention, see Figure 2 and Figure 3 The transmission mechanism 30 includes a first gear 31 and a second gear 32 meshing with each other. The first gear 31 and the second gear 32 are both rotatably disposed on the base 20. One of the support plates 10 is used to drive the first gear 31 to rotate, and the other support plate 10 is used to drive the second gear 32 to rotate. When the two support plates 10 rotate to open or rotate to fold, the first gear 31 and the second gear 32 are respectively driven to mesh with each other, so that the two support plates 10 rotate smoothly and move in opposite directions synchronously.

[0049] By setting the first gear 31 and the second gear 32, the two support plates 10 can be synchronously moved in opposite directions, which is the same as the movement of the first part and the second part in the folding module, and the two support plates 10 can always be close to the first part and the second part. In addition, the structural strength of the gear structure is relatively large, and it is not easy to be damaged during multiple meshing processes. At the same time, the first gear 31 and the second gear 32 will not occupy the peripheral space of the folding module, and will not block the peripheral side of the folding module, which is convenient for observing the folding module.

[0050] The first gear 31 and the second gear 32 have the same linear speed and opposite rotation directions, so that the two support plates 10 can move synchronously and in opposite directions.

[0051] In some embodiments, the first gear 31 and the second gear 32 are both spur gears.

[0052] In some embodiments, the first gear 31 and the second gear 32 are both bevel gears.

[0053] In other embodiments, a polygonal connecting rod, a sprocket mechanism, a pulley mechanism, etc. may also be used to achieve synchronous and reverse movement of the two support plates 10 .

[0054] In some embodiments of the present invention, see Figures 1 to 3 A first sliding rod 311 is fixed to the outer side of the first gear 31, and one of the support plates 10 has a sliding hole 121 for the first sliding rod 311 to extend into; and / or, a second sliding rod 321 is fixed to the outer side of the second gear 32, and the other support plate 10 has a sliding hole 121 for the second sliding rod 321 to extend into.

[0055] The first sliding rod 311 is fixedly connected to the first gear 31. It can be understood that the first sliding rod 311 is formed by the outer wall of the first gear 31 extending in the direction away from the first gear 31, and the first sliding rod 311 extends into the interior of the support plate 10. In this way, when the support plate 10 rotates, the first gear 31 is driven to rotate through the first sliding rod 311. Moreover, since the first sliding rod 311 is slidably connected to the support plate 10, when the support plate 10 drives the first gear 31 to rotate, no jamming phenomenon will occur between the support plate 10 and the first gear 31.

[0056] The second sliding rod 321 is fixedly connected to the second gear 32. It can be understood that the second sliding rod 321 is formed by the outer wall of the second gear 32 extending in the direction away from the second gear 32, and the second sliding rod 321 extends into the interior of the support plate 10. In this way, when the support plate 10 rotates, the second gear 32 is driven to rotate through the second sliding rod 321. In addition, since the second sliding rod 321 is slidably connected to the support plate 10, when the support plate 10 drives the second gear 32 to rotate, no jamming phenomenon will occur between the support plate 10 and the second gear 32.

[0057] By setting the first sliding rod 311, the rotation of one of the support plates 10 can drive the first gear 31 to rotate, and by setting the second sliding rod 321, the rotation of the other support plate 10 can drive the second gear 32 to rotate, thereby realizing the linkage between the two support plates 10.

[0058] In some embodiments, the central axis of the first sliding rod 311 passes through the central axis of the first gear 31 , so that the first gear 31 and the corresponding rotation central axis of the support plate 10 are coaxially arranged, so that the rotation of the support plate 10 is synchronized with the rotation of the first gear 31 .

[0059] In some embodiments, the central axis of the second sliding rod 321 passes through the central axis of the second gear 32 , so that the second gear 32 and the corresponding rotation central axis of the support plate 10 are coaxially arranged, so that the rotation of the support plate 10 is synchronized with the rotation of the second gear 32 .

[0060] In some embodiments, the cross-sections of the first sliding rod 311 and the first sliding hole 121 are both circular or square.

[0061] In some embodiments, the cross-sections of the second sliding rod 321 and the second sliding hole 121 are both circular or square.

[0062] In some embodiments of the present invention, see Figure 3 The support plate 10 is provided with a sliding connection portion 12 protruding along the thickness direction thereof, and the sliding hole 121 is provided in the sliding connection portion 12. Since the sliding connection portion 12 is used for sliding connection with the first sliding rod 311 and the second sliding rod 321, the sliding connection portion 12 is provided on the side of the support plate 10 close to the base 20, and the first sliding rod 311 and the second sliding rod 321 do not need to be provided too long, and the driving torque can also be reduced.

[0063] By setting the sliding connection part 12 , the sliding connection between the support plate 10 and the first sliding rod 311 and the support plate 10 and the second sliding rod 321 is realized, thereby realizing the meshing movement of the first gear 31 and the second gear 32 .

[0064] In some embodiments, see Figure 2 and Figure 3 A recessed portion 13 is provided on one side of the support plate 10 close to the base 20. The recessed portion 13 is open at least on one side close to the gear. The sliding connection portion 12 is provided on the inner wall of the recessed portion 13. The recessed portion 13 provides more space for the first sliding rod 311 and the second sliding rod 321 to slide, so as to avoid collision with other structures of the support plate 10.

[0065] Optionally, the sliding connection portion 12 may be a plate-shaped structure, and the sliding connection portion 12 is vertically disposed on the inner wall of the recessed portion 13 .

[0066] The first gear 31 and the second gear 32 are meshed with each other, the first sliding rod 311 and the second sliding rod 321 can be symmetrically arranged, and the two sliding connection parts 12 can also be symmetrically arranged.

[0067] In some embodiments of the present invention, see Figure 2 and Figure 3The base 20 has two spaced mounting plates 23, and the first gear 31 and the second gear 32 are both mounted between the two mounting plates 23. The first gear 31 and the second gear 32 are both mounted on the base 20 through the mounting plates 23, and the first gear 31 and the second gear 32 can rotate on the mounting plates 23. Specifically, the two ends of the gear shaft of the first gear 31 extend into the two mounting plates 23, respectively, so that the first gear 31 can rotate on the base 20; the two ends of the gear shaft of the second gear 32 extend into the two mounting plates 23, respectively, so that the second gear 32 can rotate on the base 20.

[0068] By disposing the two mounting plates 23 , mounting positions and movement spaces are provided for the first gear 31 and the second gear 32 , and the space formed between the two mounting plates 23 is used for the first gear 31 and the second gear 32 to rotate.

[0069] In some embodiments, the base 20 includes a substrate 21 and two mounting plates 23 fixed on the substrate 21 . The mounting plates 23 and the substrate 21 may be disposed perpendicularly to each other.

[0070] In other embodiments of the present invention, the base 20 has an installation space, the installation space has two opposite side walls spaced apart, the two ends of the gear shaft of the first gear 31 extend into the two opposite side walls respectively, and the two ends of the gear shaft of the second gear 32 extend into the two opposite side walls respectively.

[0071] In some embodiments of the present invention, see Figures 1 to 3 The connecting rod structure 40 includes a connecting rod portion 41 and a slit strip 42 that are fixedly connected. One end of the connecting rod portion 41 is rotatably connected to the support plate 10, and the other end of the connecting rod portion 41 is rotatably connected to the base 20. When the two support plates 10 are folded, the two sides of the two slit strips 42 are arranged at an acute angle to each other. The function of the connecting rod portion 41 is to connect the base 20 and the support plate 10, and the slit strip 42 is used to shield the water drop structure of the folding module when the folding module is folded. The support plate 10, the connecting rod portion 41 and the base 20 are rotatably connected in sequence to form a connecting rod mechanism, and the rotation of the support plate 10 can drive the linkage of the connecting rod portion 41 and the base 20. The two sides of the two slit strips 42 are arranged at an acute angle to each other, so that a accommodating space is formed between the two slit strips 42 to avoid and shield the folding part (water drop structure) of the folding module.

[0072] The connecting rod portion 41 can be used to connect the support plate 10 and the base 20 so that the support plate 10 and the base 20 are linked to each other. The seam strip 42 can be used to fill the gap between the support plate 10 and the base 20 when the bending jig is folded, thereby shielding the folding part of the folding module.

[0073] In some embodiments, the connecting rod portion 41 is in the shape of an elongated strip, and the two connection positions between the connecting rod portion 41 and the base 20 and the support plate 10 are respectively located at the two ends of the connecting rod portion 41. In this way, the space occupied by the connecting rod portion 41 can be minimized as much as possible. After folding, the space between the base 20 and the support plate 10 is narrow, and reducing the size of the connecting rod portion 41 is of great significance.

[0074] In some embodiments, the support plate 10 is a rectangular structure. When the folding module is placed on the bending jig, the length direction of the support plate 10 is the same as the length direction of the first part of the folding module, and the length direction of the slit strip 42 is the same as the length direction of the support plate 10, so that the folding part of the folding module can be shielded. An accommodating space is formed between the two slit strips 42.

[0075] Optionally, the connecting line of the two connection positions of the connecting rod 41 and the base 20 and the support plate 10 is the length direction of the connecting rod, and the length direction of the slit strip 42 is perpendicular to the length direction of the connecting rod. In this way, the rotation axis of the connecting rod 41, the rotation axis of the support plate 10, the rotation axis of the first gear 31 and the second gear 32 are all parallel to the length direction of the slit strip 42, and the connecting rod 41, the support plate 10, the first gear 31, the second gear 32, etc. can be arranged at one end of the slit strip 42, and will not block the other end of the folding part of the folding module, and the water drop morphology and displacement of each layer of the folding module can be observed from the end of the slit strip 42 away from the connecting rod 41.

[0076] In some embodiments of the present invention, see Figure 2 and Figure 3 The connecting rod 41 and the transmission mechanism 30 are arranged at one end of the base 20 in the length direction. In other words, the connecting rod 41 and the transmission mechanism 30 only occupy one end of the bending jig in the length direction, and the other end is not blocked by any structure, and the folding part and part of the surrounding side of the folding module are exposed, so that the folding module can be observed conveniently.

[0077] In some embodiments of the present invention, see Figures 1 to 3 The support plate 10 is provided with a first hinged portion 11 protrudingly, the base 20 is provided with a second hinged portion 22 protrudingly, and the two ends of the connecting rod portion 41 are respectively hinged to the first hinged portion 11 and the second hinged portion 22. The support plate 10, the first hinged portion 11, the connecting rod portion 41, the second hinged portion 22, and the base 20 form a multi-rod mechanism. When the support plate 10 rotates, the first hinged portion 11, the connecting rod portion 41, and the second hinged portion 22 rotate accordingly, so as to realize the linkage between the support plate 10 and the base 20.

[0078] By providing a first hinge portion 11 on the support plate 10 and a second hinge portion 22 on the base 20, a multi-rod mechanism is formed between the support plate 10 and the base 20 through the connecting rod portion 41, and the transmission chain is stable, thereby making the folding and unfolding of the bending jig smoother.

[0079] The first gear 31, the support plate 10, the connecting rod structure 40 and the base 20 are used as one of the transmission chains for explanation. The support plate 10 rotates around the rotation center axis of the first gear 31 as the center axis. The rotation center axis of the first gear 31 is the first rotation axis. The hinge axis of the first hinge part 11 and the connecting rod structure 40 is the second rotation axis. The hinge axis of the connecting rod structure 40 and the second hinge part 22 is the third rotation axis. A first connecting rod is formed between the first rotation axis and the second rotation axis, and the first connecting rod is retractable (the first gear 31 and the support plate 10 can slide relative to each other). A second connecting rod is formed between the second rotation axis and the third rotation axis. The first rotation axis and the third rotation axis are both arranged on the base 20, and the relative positions of the two remain unchanged.

[0080] In some embodiments, see Figure 2 and Figure 3 The support plate 10 has a recessed portion 13 on one side close to the connecting rod portion 41, and the first hinge portion 11 is formed by a protrusion on the inner wall of the recessed portion 13. The first hinge portion 11 is at least partially located in the recessed portion 13, and there is sufficient activity space around the first hinge portion 11 for the connecting rod portion 41 to rotate, so as to avoid interference with the support plate 10 and not occupy the thickness space of the support plate 10.

[0081] Optionally, the recessed portion 13 is located at the edge of the support plate 10 to facilitate the rotational connection between the connecting rod portion 41 and the support plate 10 and the base 20. The side of the recessed portion 13 close to the base 20 (the side facing the width direction of the support plate 10) is open. When the bending jig is unfolded, the upward side of the recessed portion 13 (the side facing the thickness direction of the support plate 10) is open to facilitate the installation of the connecting rod portion 41. The recessed portion 13 can be a structure with openings on both sides.

[0082] Optionally, the recessed portion 13 is located at the edge of the support plate 10, which facilitates the rotational connection between the connecting rod portion 41 and the support plate 10 and the base 20. The side of the recessed portion 13 close to the base 20 (the side facing the width direction of the support plate 10) is open. When the bending jig is unfolded, the side facing the recessed portion 13 (the side facing the thickness direction of the support plate 10) is open, which facilitates the installation of the connecting rod portion 41. The side of the recessed portion 13 facing the length direction of the support plate 10 is open, so that the recessed portion 13 is located at one corner of the support plate 10. The recessed portion 13 is a structure with three sides opening, which only blocks the folding position of the folding module at one end in the length direction, and the other end is not blocked and can be used for observation.

[0083] In some embodiments of the present invention, see Figure 2 and Figure 3The base 20 includes a base plate 21, two second hinged parts 22 fixed on the base plate 21, and a mounting plate 23 for mounting a transmission mechanism 30. The second hinged parts 22 and the mounting plate 23 are arranged along the length direction of the base plate 21. The base 20 is arranged in a long strip shape. The base plate 21 is the main structure of the base 20. The base plate 21 is also arranged in a long strip shape and has the same length direction as the base 20. The transmission mechanism 30 is mounted on the mounting plate 23. The transmission mechanism 30 is only supported on the mounting plate 23 by a shaft or other structure, and can still rotate relative to the mounting plate 23. The second hinged parts 22 and the mounting plate 23 are arranged along the length direction of the base plate 21, which only means that the two second hinged parts 22 and the mounting plate 23 are arranged in the length direction of the base plate 21. The order of arrangement is not limited. For example, they can be arranged in the order of the second hinged part 22, the mounting plate 23, and the second hinged part 22, or in the order of the mounting plate 23, the second hinged part 22, and the second hinged part 22.

[0084] The positions of the two second hinged parts 22 and the mounting plate 23 are staggered, so as to facilitate the layout of the two connecting rod structures 40 and the transmission mechanism 30 to avoid structural interference.

[0085] In some embodiments, the transmission mechanism 30 is disposed near the edge of the bending fixture relative to the connecting rod portion 41 , and the mounting plate 23 , one of the second hinged portions 22 , and the other second hinged portion 22 are arranged in sequence along the length direction of the base plate 21 .

[0086] In some embodiments, the transmission mechanism 30 is disposed between two connecting rod portions 41 , wherein one second hinged portion 22 , the mounting plate 23 and the other second hinged portion 22 are sequentially arranged along the length direction of the base plate 21 .

[0087] In some embodiments, the base 20 further includes a strip portion 24 fixed on the base plate 21, the length direction of the strip portion 24 is parallel to the rotation center axis of the support plate 10, and when the two support plates 10 are folded, the strip portion 24 is sandwiched between the two connecting rod portions 41. The strip portion 24 is arranged along the length direction of the base 20. When the two support plates 10 are folded, that is, when the bending jig is in a bent state, the opposite sides of the strip portion 24 are two slit strips 42, one side of the slit strip 42 in the width direction is close to the strip portion 24, and the other side of the slit strip 42 in the width direction is close to the support plate 10.

[0088] The arrangement of the strip portion 24 can make the seam strip 42 more stable when the bending jig is in the folded state, thereby reducing the shaking of the seam strip 42 .

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bending jig for bending and folding a module, characterized in that: It includes a base, a transmission mechanism, two support plates and two connecting rod structures, the two support plates are used to support the first part and the second part of the folding module respectively, the base is located between the two support plates, the base and the two support plates are connected by the two connecting rod structures respectively, and the two support plates are folded or unfolded by relative rotation through the transmission mechanism, and when the two support plates are folded, a accommodating space is formed between the two connecting rod structures.

2. The bending jig according to claim 1, characterized in that: The transmission mechanism includes a first gear and a second gear meshing with each other, wherein the first gear and the second gear are both rotatably disposed on the base, wherein one of the support plates is used to drive the first gear to rotate, and the other support plate is used to drive the second gear to rotate.

3. The bending jig according to claim 2, characterized in that: A first sliding rod is fixed to the outer side of the first gear, and one of the support plates has a sliding hole for the first sliding rod to extend into; and / or a second sliding rod is fixed to the outer side of the second gear, and the other support plate has a sliding hole for the second sliding rod to extend into.

4. The bending jig according to claim 3, characterized in that: The support plate is provided with a sliding connection portion protruding along the thickness direction thereof, and the sliding hole is opened in the sliding connection portion.

5. The bending jig according to claim 2, characterized in that: The base has two installation plates arranged at intervals, and the first gear and the second gear are both mounted between the two installation plates.

6. The bending jig according to any one of claims 1 to 5, characterized in that: The connecting rod structure includes a connecting rod portion and a clamping strip that are fixedly connected, one end of the connecting rod portion is rotatably connected to the support plate, and the other end of the connecting rod portion is rotatably connected to the base. When the two support plates are folded, the two sides of the two clamping strips facing each other are arranged at an acute angle.

7. The bending jig according to claim 6, characterized in that: The connecting rod portion and the transmission mechanism are arranged at one end of the base in the length direction thereof.

8. The bending jig according to claim 6, characterized in that: A first hinged portion is protruded on the support plate, a second hinged portion is protruded on the base, and two ends of the connecting rod portion are hinged to the first hinged portion and the second hinged portion respectively.

9. The bending jig according to claim 8, characterized in that: The support plate has a concave portion on one side close to the connecting rod portion, and the first hinge portion is formed by a protrusion on the inner wall of the concave portion.

10. The bending jig according to claim 8, characterized in that: The base includes a base plate, two second hinged parts fixed on the base plate, and a mounting plate for mounting the transmission mechanism. The second hinged parts and the mounting plate are arranged along the length direction of the base plate.

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