CN114635612A

CN114635612A - Hinge assembly with adjustable bending angle

Info

Publication number: CN114635612A
Application number: CN202210177883.8A
Authority: CN
Inventors: 戚志; 黎善雄
Original assignee: Guangdong Jusen Hardware Precision Manufacturing Co ltd
Current assignee: Guangdong Jusen Hardware Precision Manufacturing Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-06-17
Anticipated expiration: 2042-02-24
Also published as: CN114635612B

Abstract

The invention provides a hinge assembly with an adjustable bending angle, which relates to the technical field of hinges and comprises a hinge seat, a mounting plate and a connecting plate which is hinged between the hinge seat and the mounting plate and is obliquely arranged, wherein the bottom wall of an inner cavity of the hinge seat is connected with a sliding seat in a sliding manner along the transverse direction, the lower side of the connecting plate is hinged with the sliding seat through a first connecting rod, and a one-way rotating device is arranged at the hinged part of the mounting plate and the connecting plate; the mounting panel can rotate for the connecting plate, the connecting plate rotates for the hinge seat, the connecting plate passes through one connecting rod simultaneously and promotes the slide and slide right, wherein set up one-way rotating device, can avoid the mounting panel lapse, set up stop device and can restrict the slide and slide left, can avoid the problem that the door body closed, make things convenient for maintenance personal's maintenance work, avoid at the maintenance cabinet body in-process, the problem that the cabinet door accident was closed, also can prevent that the house door from closing, lead to the problem that the ventilation is not smooth.

Description

Hinge assembly with adjustable bending angle

Technical Field

The invention relates to the technical field of hinges, in particular to a hinge assembly with an adjustable bending angle.

Background

Hinges are mechanical devices used to connect two solid bodies and allow relative rotation between them. The hinge may be constructed of a movable component or may be constructed of a foldable material. The hinges are mainly arranged on doors and windows, and more hinges are arranged on cabinets and are mainly classified into stainless steel hinges and iron hinges according to materials; the hydraulic hinge (also called damping hinge) is also provided for people to enjoy better, and is characterized in that the hydraulic hinge has a buffering function when the cabinet door is closed, and the noise generated by collision between the cabinet door and the cabinet body when the cabinet door is closed is reduced to the greatest extent.

And most hinge installations are back on the cabinet body and cabinet door on the existing market, the cabinet door receives external force self-closing easily, for example, the hinge subassembly is installed on the distribution cabinet, the cabinet door receives the vibrations of equipment easily and makes the cabinet door close, or receive natural factor, for example, the cabinet door closes easily when wind blows, when the maintenance personal is at the maintenance cabinet body, the unexpected maintenance work that is unfavorable for of cabinet door closing, the door in the family is also so of course, people are in the life process, like to open window and door and keep ventilating, but the door receives wind-force self-closing back, lead to the not smooth problem of ventilation, for this reason we propose a hinge subassembly, make the door body open the back be difficult to close.

Disclosure of Invention

The invention aims to provide a hinge assembly with an adjustable bending angle, and aims to solve the problem that a door body is easily accidentally closed by external force in the use process of the hinge assembly in the prior art.

In order to realize the purpose, the invention adopts the following technical scheme: the utility model provides a hinge subassembly of angularly adjustable of buckling, includes hinge seat, mounting panel and articulates the connecting plate that just the slope set up between hinge seat and mounting panel, there is the slide inner chamber diapire of hinge seat along transverse direction sliding connection, the downside of connecting plate is articulated with the slide through connecting rod one, the articulated department of mounting panel and connecting plate is provided with one-way rotating device, makes the mounting panel can upwards rotate for the connecting plate is one-way, the intracavity of hinge seat is provided with stop device for make the slide one-way slide right.

In order to enable the hinge seat to have the function of a sliding seat, the hinge seat further adopts the technical scheme that the hinge seat comprises an installation base body and a bottom plate detachably connected with the installation base body, sliding rails are fixedly connected to two opposite side walls of the installation base body, and a first sliding groove in sliding fit with the sliding rails is formed in the sliding seat.

In order to enable the unidirectional rotation mounting device to have the function of enabling the mounting plate to rotate in a unidirectional mode, the mounting plate is provided with an L-shaped rotating arm, a rotating shaft is fixedly connected onto the rotating arm, the connecting plate is in rotational connection with the rotating shaft, the unidirectional rotation device comprises a ratchet wheel fixedly connected onto the rotating shaft and a pawl meshed with the ratchet wheel, the pawl is in rotational connection with the connecting plate through a pin shaft, a torsion spring for keeping the ratchet wheel and the pawl meshed is sleeved on the pin shaft, one end of the torsion spring is fixedly connected with the pawl, and the other end of the torsion spring is fixedly connected with the connecting plate.

According to a further technical scheme, the limiting device comprises a blocking plate, a plurality of blocking parts which are distributed at equal intervals are arranged at the top of the blocking plate along the transverse direction, an inserting plate is connected inside the hinge seat in a sliding mode along the vertical direction, the inserting plate is provided with an inclined bottom surface, the blocking parts are provided with inclined surfaces capable of being in contact with the bottom surfaces of the inserting plate, the limiting device further comprises a first reset spring used for enabling the inserting plate to extend into the two adjacent blocking parts, the lower end of the first reset spring is fixedly connected with the inserting plate, and the upper end of the first reset spring is fixedly connected with the hinge seat.

The technical scheme includes that a longitudinal plate is fixedly connected to the side wall of the hinge seat, a sliding channel for the insertion plate to slide up and down is formed in the upper surface of the longitudinal plate, a guide rod is fixedly connected to one end, away from the first connecting rod, of the sliding seat, a second return spring is sleeved outside the guide rod, a pressing plate is connected to the inside of the hinge seat in a sliding mode along the transverse direction, a guide hole corresponding to the guide rod is formed in the pressing plate, the hinge seat further comprises a driving device for driving the pressing plate to slide transversely leftwards or rightwards, triggering devices are arranged on the pressing plate and the insertion plate, when the driving device drives the pressing plate to slide leftwards, the second return spring is squeezed, the insertion plate is driven to ascend through the triggering devices, and the lower end of the insertion plate is higher than the blocking portion and squeezes the first return spring.

According to a further technical scheme, the driving device comprises a box body, a driving shaft is rotatably connected inside the box body, a spiral blade is fixedly connected to the outer surface of the driving shaft, a fixing column extending into the spiral blade is fixedly connected to the top end of the pressing plate, one end of the driving shaft penetrates through the outside of the box body and is fixedly connected with a handle, and a notch for enabling the inserting plate to transversely slide is formed in the bottom wall of the box body.

According to a further technical scheme, the trigger device comprises a supporting arm fixedly connected to the side face of the pressing plate, one end of the supporting arm is hinged to a second connecting rod, the other end of the second connecting rod is rotatably connected with a supporting shaft, and two ends of the supporting shaft are fixedly connected with the inserting plate through supporting plates.

According to a further technical scheme, a gear is fixedly connected to the middle of the rotating shaft, a rack is meshed with the gear, a sliding block is connected to the connecting plate in a sliding mode along the length direction of the connecting plate, the upper end of the rack is fixedly connected with the sliding block, and a third reset spring is fixedly installed between the upper side of the sliding block and the connecting plate.

According to a further technical scheme, the connecting plate comprises a left half part and a right half part which are arranged at intervals, a fixing plate is fixedly connected between the left half part and the right half part, sliding grooves II are formed in the opposite inner sides of the left half part and the right half part, sliding parts in sliding fit with the sliding grooves II are fixedly connected to two sides of each sliding block, the upper end of a return spring III is fixedly connected with the fixing plate, and the connecting plate further comprises a traction device used for enabling a pawl to be separated from a ratchet wheel.

According to a further technical scheme, the traction device comprises a traction rope, one end of the traction rope is fixedly connected with the pawl, a traction channel for the traction rope to extend into and extend out is formed in the connecting plate, a traction plate is fixedly connected to the top end of the traction rope, a moving groove communicated with the sliding groove II is formed in the connecting plate, the traction plate can slide up and down relative to the moving groove, the upper end of the traction plate extends into the sliding groove II, a first jack is formed in the traction plate, a second jack is formed in the outer side of the connecting plate, when one end of the sliding part on the sliding block slides upwards, the traction plate can be driven to slide upwards, the axes of the first jack and the second jack are coincided, and the traction device further comprises an insertion rod inserted into the first jack and the second jack.

The invention has the beneficial effects that:

1. when opening a body, the mounting panel can rotate for the connecting plate, the connecting plate rotates for the hinge seat, the connecting plate passes through connecting rod one simultaneously and promotes the slide and slide right, wherein set up one-way rotating device, can avoid the mounting panel lapse, it can restrict the slide and slide left to set up stop device, can avoid the problem that a body was closed, make things convenient for maintenance personal's maintenance work, avoid at the maintenance cabinet body in-process, the problem that the cabinet door accident was closed, also can prevent that the family from closing, lead to the problem that the ventilation is not smooth.

2. The driving device drives the pressing plate to move leftwards and starts the triggering device, the problem that the limiting device limits the sliding seat to slide leftwards is solved, meanwhile, the pressing plate slides towards the sliding seat and extrudes the second return spring, when the door body is opened, the connecting plate rotates relative to the hinge seat, the sliding seat is pushed by the first connecting rod to slide rightwards and extrude the second return spring, and therefore the sliding stroke of the sliding seat can be changed through the driving device, and the rotating angle of the door body is adjusted.

3. The hinge assembly comprises two modes, namely a door closing prevention mode, the mounting plate is limited to rotate anticlockwise relative to the connecting plate under the action of the one-way rotating device, the sliding seat is limited to slide leftwards by the limiting device, when the door body is opened, the condition that the door body is accidentally closed can be effectively prevented, the other is an automatic door closing mode, the pressing plate is driven by the driving device to slide rightwards, the problem that the limiting device limits the sliding of the sliding seat is solved, meanwhile, by separating the pawl from the ratchet wheel, after the door body is opened, the mounting plate rotates clockwise and drives the slide block to compress the return spring III, meanwhile, the slide seat compresses the return spring II, after the door body is loosened, under the effect of reset spring three and reset spring two, realized the effect of self-closing door body, be applicable to the fridge, for example the refrigerator, above two kinds of modes can be according to the service condition switching back and forth of difference.

4. The pulling plate moves upwards through the pulling rope in the upward sliding process, the pawl is driven to rotate to be separated from the ratchet wheel, the inserted rod is inserted into the first insertion hole and the second insertion hole, the pulling plate is prevented from sliding downwards, and therefore the pawl and the ratchet wheel are conveniently kept in a non-meshed state.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1, showing a detailed structure of the unidirectional rotation apparatus according to the present invention;

FIG. 3 is a schematic cross-sectional view of FIG. 1 of the present invention;

FIG. 4 is an enlarged view of the position B in FIG. 3, showing a specific structure of the stopper device;

FIG. 5 is a schematic view of a platen according to another embodiment of the present invention;

FIG. 6 is a schematic view of the driving device of the present invention;

FIG. 7 is a schematic structural view of the triggering device of the present invention;

FIG. 8 is a schematic perspective view of another embodiment of the present invention;

FIG. 9 is a schematic view of the construction of the gear and rack of the present invention;

FIG. 10 is a schematic cross-sectional view of a connecting plate according to the present invention;

fig. 11 is a schematic structural view of the first jack and the second jack in a state of axial coincidence.

In the figure: 1. a hinge mount; 101. installing a base body; 102. a base plate; 2. mounting a plate; 201. a rotating arm; 3. a connecting plate; 31. a left half part; 32. a right half portion; 33. a fixing plate; 4. a slide base; 5. a first connecting rod; 6. a unidirectional rotation device; 61. a ratchet wheel; 62. a pawl; 63. a pin shaft; 64. a torsion spring; 7. a limiting device; 71. a blocking plate; 72. a blocking portion; 73. inserting plates; 74. a first return spring; 8. a guide bar; 9. a second return spring; 10. pressing a plate; 11. a drive device; 111. a box body; 112. a drive shaft; 113. a helical blade; 114. fixing a column; 115. a handle; 12. a trigger device; 121. a support arm; 122. a second connecting rod; 123. a support shaft; 124. a support plate; 13. a longitudinal plate; 14. a slide channel; 15. a notch; 16. a gear; 17. a rack; 18. a slider; 181. a sliding part; 19. a third return spring; 20. a second chute; 21. a traction device; 211. a hauling rope; 212. a traction channel; 213. a traction plate; 214. a moving groove; 22. a first jack; 23. a second jack; 24. inserting a rod; 25. a slide rail; 26. a first sliding chute; 27. a rotating shaft.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1-3, a hinge assembly with an adjustable bending angle comprises a hinge base 1, a mounting plate 2 and a connecting plate 3 which is hinged between the hinge base 1 and the mounting plate 2 and is obliquely arranged, wherein a sliding seat 4 is connected to the bottom wall of an inner cavity of the hinge base 1 in a sliding manner along the transverse direction, the lower side of the connecting plate 3 is hinged to the sliding seat 4 through a first connecting rod 5, a one-way rotating device 6 is arranged at the hinged position of the mounting plate 2 and the connecting plate 3, so that the mounting plate 2 can rotate upwards in one way relative to the connecting plate 3, and a limiting device 7 is arranged in the inner cavity of the hinge base 1 and is used for enabling the sliding seat 4 to slide rightwards in one way.

In this embodiment, install mounting panel 2 on the door body, hinge seat 1 is installed on the cabinet body or door frame, when opening the door body, mounting panel 2 can rotate for connecting plate 3, and connecting plate 3 can rotate for hinge seat 1 again, connecting plate 3 promotes slide 4 through connecting rod 5 and slides right simultaneously, wherein set up one-way rotating device 6, can avoid mounting panel 2 lapse, it can restrict slide 4 and slide left to set up stop device 7, can avoid the problem that the door body closed, make things convenient for maintenance personal's maintenance work, avoid at the maintenance cabinet body in-process, the problem that the cabinet door accident was closed, also can prevent that the house door from closing, lead to the problem that the ventilation is not smooth.

In another embodiment of the present invention, the hinge base 1 includes a mounting base 101 and a bottom plate 102 detachably connected to the mounting base 101, two opposite side walls of the mounting base 101 are fixedly connected to slide rails 25, the slide base 4 is provided with a first slide groove 26 slidably engaged with the slide rail 25, and the slide base 4 can slide by the arrangement of the slide rail 25 and the first slide groove 26.

Specifically, the mounting plate 2 has the rotating arm 201 of L shape, fixedly connected with rotation axis 27 on the rotating arm 201, connecting plate 3 is connected for rotating with rotation axis 27, unidirectional rotation device 6 includes ratchet 61 of fixed connection on rotation axis 27 and pawl 62 with ratchet 61 meshing, pawl 62 rotates with connecting plate 3 through round pin axle 63 and is connected, the cover is equipped with the torsional spring 64 that keeps ratchet 61 and pawl 62 meshing on the round pin axle 63, the one end and the pawl 62 fixed connection of torsional spring 64, the other end and connecting plate 3 fixed connection, when pawl 62 meshes on ratchet 61, mounting plate 2 can be for connecting plate 3 clockwise unidirectional rotation, play the effect of opening the door body.

As shown in fig. 4 and 5, the limiting device 7 includes a blocking plate 71, a plurality of blocking portions 72 distributed at equal intervals are arranged on the top of the blocking plate 71 along the transverse direction, an insert plate 73 is connected to the inside of the hinge base 1 in a sliding manner along the vertical direction, the insert plate 73 has an inclined bottom surface, the blocking portions 72 have inclined surfaces capable of contacting with the bottom surface of the insert plate 73, a first return spring 74 for extending the insert plate 73 into two adjacent blocking portions 72 is further included, the lower end of the first return spring 74 is fixedly connected with the insert plate 73, the upper end of the first return spring is fixedly connected with the hinge base 1, a limiting groove for extending the lower end of the insert plate 73 is formed between the two blocking portions 72, when the sliding base 4 slides rightwards, the inclined surface of the blocking portion 72 can contact with the inclined bottom surface of the insert plate 73, the insert plate 73 slides upwards and compresses the first return spring 74, under the action of the first return spring 74, the insert plate 73 can be inserted into the limiting groove, after the side wall of the blocking part 72 contacts with the side wall of the inserting plate 73, the sliding seat 4 can be limited to slide leftwards, and the problem of closing the door body can be avoided by matching with the one-way rotating device 6.

As shown in fig. 6, a longitudinal plate 13 is fixedly connected to a side wall of the hinge base 1, a sliding channel 14 for the insert plate 73 to slide up and down is formed in the upper surface of the longitudinal plate 13, a guide rod 8 is fixedly connected to one end of the sliding base 4 away from the first connecting rod 5, a second return spring 9 is sleeved outside the guide rod 8, a pressing plate 10 is connected to the inside of the hinge base 1 in a sliding manner along a transverse direction, a guide hole corresponding to the guide rod 8 is formed in the pressing plate 10, a driving device 11 for driving the pressing plate 10 to slide transversely leftwards or rightwards is further included, a triggering device 12 is arranged on the pressing plate 10 and the insert plate 73, when the driving device 11 drives the pressing plate 10 to slide leftwards, the second return spring 9 is pressed and the insert plate 73 is driven to ascend by the triggering device 12, so that the lower end of the insert plate 73 is higher than the blocking portion 72 and presses the first return spring 74, the driving device 11 drives the pressing plate 10 to move leftwards and starts the triggering device 12, the inserting plate 73 slides upwards and presses the first return spring 74 until the lower end of the inserting plate 73 is higher than the stopping part 72, the problem that the limiting device 7 limits the sliding seat 4 to slide leftwards is solved, meanwhile, the pressing plate 10 slides towards the sliding seat 4 and presses the second return spring 9, when the door body is opened, the connecting plate 3 rotates relative to the hinge seat 1, and pushes the sliding seat 4 to slide rightwards through the first connecting rod 5 to press the second return spring 9, and therefore the sliding stroke of the sliding seat 4 can be changed through the driving device 11, and the rotating angle of the door body is adjusted.

Specifically, drive arrangement 11 includes box 111, the internal rotation of box 111 is connected with drive shaft 112, the outer fixed surface of drive shaft 112 is connected with helical blade 113, the top fixedly connected with of clamp plate 10 stretches into the fixed column 114 in the helical blade 113, the one end of drive shaft 112 runs through to the outside of box 111 and fixedly connected with handle 115, set up on the diapire of box 111 and supply picture peg 73 lateral sliding's notch 15, drive helical blade 113 through rotating handle 115 and rotate, can promote clamp plate 10 through fixed column 114 and slide left or right.

As shown in fig. 7, the triggering device 12 includes a supporting arm 121 fixedly connected to the side of the pressing plate 10, one end of the supporting arm 121 is hinged to a second connecting rod 122, the other end of the second connecting rod 122 is rotatably connected to a supporting shaft 123, both ends of the supporting shaft 123 are fixedly connected to the inserting plate 73 through a supporting plate 124, when the driving device 11 drives the pressing plate 10 to slide leftwards, the supporting arm 121 pushes the supporting plate 124 and the inserting plate 73 to move vertically upwards through the second connecting rod 122, so that the lower end of the inserting plate 73 is higher than the blocking portion 72 and presses the first return spring 74.

As shown in fig. 8 and 9, a gear 16 is fixedly connected to the middle of the rotating shaft 27, a rack 17 is engaged with the gear 16, a slider 18 is slidably connected to the connecting plate 3 along the length direction thereof, the upper end of the rack 17 is fixedly connected to the slider 18, a return spring three 19 is fixedly installed between the upper side of the slider 18 and the connecting plate 3, when the rotating door body drives the rotating shaft 27 to rotate, the gear 16 rotates along with the rotating shaft 27, the gear 16 is engaged with the rack 17, therefore, when the mounting plate 2 rotates relative to the connecting plate 3, the rack 17 slides along the length direction of the connecting plate 3 and pushes the slider 18 to slide, the slider 18 presses the return spring three 19, so that the return spring three 19 is in a compressed state, when an external force is applied to disengage the pawl 62 from the ratchet wheel 61, the elastic potential energy of the return spring three 19 is released, and the slider 18 is pushed to slide downwards, so that the mounting plate 2 can rotate counterclockwise relative to the connecting plate 3, therefore, the hinge assembly of the invention comprises two modes, one mode is a door closing prevention mode, the mounting plate 2 is limited to rotate anticlockwise relative to the connecting plate 3 under the action of the one-way rotating device 6, the limiting device 7 limits the sliding seat 4 to slide leftwards, and the accidental closing of the door body can be effectively prevented after the door body is opened, the other mode is an automatic door closing mode, the driving device 11 drives the pressing plate 10 to slide rightwards, the problem that the limiting device 7 limits the sliding seat 4 to slide is solved, meanwhile, the pawl 62 is separated from the ratchet wheel 61, after the door body is opened, the mounting plate 2 rotates clockwise and drives the sliding block 18 to compress the third return spring 19, meanwhile, the sliding seat 4 compresses the second return spring 9, after the door body is released, the effect of automatically closing the door body is realized under the action of the third return spring 19 and the second return spring 9, and the hinge assembly is suitable for a refrigerator, for example, a refrigerator, the two modes can be switched back and forth according to different use conditions.

As shown in fig. 10 and 11, the connecting plate 3 includes a left half 31 and a right half 32 arranged at an interval, a fixing plate 33 is fixedly connected between the left half 31 and the right half 32, sliding grooves 20 are respectively formed on the opposite inner sides of the left half 31 and the right half 32, sliding portions 181 in sliding fit with the sliding grooves 20 are respectively fixedly connected to both sides of the slider 18, the upper end of the return spring three 19 is fixedly connected with the fixing plate 33, and the connecting plate further includes a traction device 21 for disengaging the pawl 62 from the ratchet wheel 61, so that the limiting effect of the unidirectional rotation device 6 on the mounting plate 2 is more conveniently released, and therefore, the traction device 21 is provided.

Specifically, the traction device 21 includes a traction rope 211 fixedly connected to the pawl 62 at one end, a traction channel 212 for the traction rope 211 to extend into is disposed on the connection plate 3, a traction plate 213 is fixedly connected to the top end of the traction rope 211, a moving slot 214 communicated with the second sliding slot 20 is disposed inside the connection plate 3, the traction plate 213 can slide up and down relative to the moving slot 214, the upper end of the traction plate 213 extends into the second sliding slot 20, a first insertion hole 22 is disposed on the traction plate 213, a second insertion hole 23 is disposed on the outer side of the connection plate 3, when the sliding part 181 on the slider 18 slides up by a distance, the traction plate 213 can be driven to slide up, so that the axes of the first insertion hole 22 and the second insertion hole 23 coincide, the door further includes an insertion rod 24 for inserting into the first insertion hole 22 and the second insertion hole 23, during the process of opening the door body, when the sliding part 18 slides up by a distance, the sliding part 181 on the slider 18 can abut against the traction plate 213, so that the pulling plate 213 can slide upwards in the moving slot 214 until the axes of the first jack 22 and the second jack 23 are coincident, and the pulling plate 213 moves upwards through the pulling rope 211 during the upward sliding process and drives the pawl 62 to rotate to disengage from the ratchet wheel 61, the inserted rod 24 is inserted into the first jack 22 and the second jack 23, and the pulling plate 213 is blocked from sliding downwards, so that the pawl 62 and the ratchet wheel 61 can be kept in a non-engagement state for the automatic door closing mode.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a hinge subassembly of angle of buckling adjustable, includes hinge seat (1), mounting panel (2) and articulates connecting plate (3) that just inclines to set up between hinge seat (1) and mounting panel (2), its characterized in that: inner chamber diapire of hinge seat (1) has slide (4) along transverse direction sliding connection, the downside of connecting plate (3) is passed through connecting rod (5) and is articulated with slide (4), the articulated department of mounting panel (2) and connecting plate (3) is provided with one-way rotating device (6), makes mounting panel (2) can be for the one-way upwards rotation of connecting plate (3), the intracavity of hinge seat (1) is provided with stop device (7) for make slide (4) one-way slide right.

2. The hinge assembly with the adjustable bending angle as claimed in claim 1, wherein the hinge base (1) comprises a mounting base body (101) and a bottom plate (102) detachably connected with the mounting base body (101), sliding rails (25) are fixedly connected to two opposite side walls of the mounting base body (101), and a first sliding groove (26) in sliding fit with the sliding rails (25) is formed in the sliding base (4).

3. The hinge assembly with the adjustable bending angle according to claim 1, wherein the mounting plate (2) is provided with an L-shaped rotating arm (201), a rotating shaft (27) is fixedly connected to the rotating arm (201), the connecting plate (3) is rotatably connected with the rotating shaft (27), the unidirectional rotating device (6) comprises a ratchet wheel (61) fixedly connected to the rotating shaft (27) and a pawl (62) meshed with the ratchet wheel (61), the pawl (62) is rotatably connected with the connecting plate (3) through a pin shaft (63), a torsion spring (64) used for keeping the ratchet wheel (61) and the pawl (62) meshed with each other is sleeved on the pin shaft (63), one end of the torsion spring (64) is fixedly connected with the pawl (62), and the other end of the torsion spring is fixedly connected with the connecting plate (3).

4. A hinge assembly with adjustable bending angle according to claim 3, characterized in that the limiting device (7) comprises a blocking plate (71), a plurality of blocking parts (72) distributed at equal intervals are arranged at the top of the blocking plate (71) along the transverse direction, an inserting plate (73) is connected to the inside of the hinge base (1) in a sliding mode along the vertical direction, the inserting plate (73) is provided with an inclined bottom surface, the blocking parts (72) are provided with inclined surfaces capable of contacting with the bottom surfaces of the inserting plate (73), the hinge assembly further comprises a first return spring (74) used for enabling the inserting plate (73) to extend into the two adjacent blocking parts (72), the lower end of the first return spring (74) is fixedly connected with the inserting plate (73), and the upper end of the first return spring is fixedly connected with the hinge base (1).

5. The hinge assembly with the adjustable bending angle as claimed in claim 4, wherein the hinge assembly with the adjustable bending angle is characterized in that a longitudinal plate (13) is fixedly connected to the side wall of the hinge base (1), a sliding channel (14) for the insertion plate (73) to slide up and down is formed in the upper surface of the longitudinal plate (13), one end of the sliding base (4) far away from the first connecting rod (5) is fixedly connected with a guide rod (8), a second reset spring (9) is sleeved outside the guide rod (8), a pressing plate (10) is connected inside the hinge base (1) in a sliding mode along the transverse direction, a guide hole corresponding to the guide rod (8) is formed in the pressing plate (10), the hinge assembly further comprises a driving device (11) for driving the pressing plate (10) to slide transversely leftwards or rightwards, a triggering device (12) is arranged on the pressing plate (10) and the insertion plate (73), and when the driving device (11) drives the pressing plate (10) to slide leftwards, the second reset spring (9) is extruded and the pressing plate (10) is passed through the triggering device (12) The inserting plate (73) is driven to ascend, so that the height of the lower end of the inserting plate (73) is higher than that of the blocking part (72) and the first return spring (74) is pressed.

6. The hinge assembly with the adjustable bending angle according to claim 5, characterized in that the driving device (11) comprises a box body (111), a driving shaft (112) is rotatably connected inside the box body (111), a spiral blade (113) is fixedly connected to the outer surface of the driving shaft (112), a fixing column (114) extending into the spiral blade (113) is fixedly connected to the top end of the pressing plate (10), one end of the driving shaft (112) penetrates through the outside of the box body (111) and is fixedly connected with a handle (115), and a notch (15) for the insertion plate (73) to slide transversely is formed in the bottom wall of the box body (111).

7. The hinge assembly with the adjustable bending angle as claimed in claim 5, wherein the triggering device (12) comprises a supporting arm (121) fixedly connected to the side surface of the pressure plate (10), one end of the supporting arm (121) is hinged with a second connecting rod (122), the other end of the second connecting rod (122) is rotatably connected with a supporting shaft (123), and both ends of the supporting shaft (123) are fixedly connected with the inserting plate (73) through a supporting plate (124).

8. A hinge assembly with adjustable bending angle according to any one of claims 5 to 7, characterized in that a gear (16) is fixedly connected to the middle of the rotating shaft (27), a rack (17) is engaged on the gear (16), a sliding block (18) is slidably connected to the connecting plate (3) along the length direction of the connecting plate, the upper end of the rack (17) is fixedly connected with the sliding block (18), and a return spring III (19) is fixedly installed between the upper side of the sliding block (18) and the connecting plate (3).

9. The hinge assembly with the adjustable bending angle according to claim 8, characterized in that the connecting plate (3) comprises a left half part (31) and a right half part (32) which are arranged at intervals, a fixing plate (33) is fixedly connected between the left half part (31) and the right half part (32), a second sliding groove (20) is formed in the opposite inner sides of the left half part (31) and the right half part (32), sliding parts (181) which are in sliding fit with the second sliding groove (20) are fixedly connected to the two sides of the sliding block (18), the upper end of the third return spring (19) is fixedly connected with the fixing plate (33), and the hinge assembly further comprises a traction device (21) which is used for enabling the pawl (62) to be separated from the ratchet wheel (61).

10. The hinge assembly with the adjustable bending angle according to claim 9, wherein the pulling device (21) comprises a pulling rope (211) fixedly connected with one end of the pulling rope and the pawl (62), the connecting plate (3) is provided with a pulling channel (212) for the pulling rope (211) to extend into, the top end of the pulling rope (211) is fixedly connected with a pulling plate (213), the connecting plate (3) is internally provided with a moving groove (214) communicated with the second sliding groove (20), the pulling plate (213) can slide up and down relative to the moving groove (214), the upper end of the pulling plate (213) extends into the second sliding groove (20), the pulling plate (213) is provided with a first insertion hole (22), the outer side of the connecting plate (3) is provided with a second insertion hole (23), and when the sliding part (181) on the sliding block (18) slides upwards, one end is separated from the sliding part, the pulling plate (213) can be driven to slide upwards, the axes of the first jack (22) and the second jack (23) are coincident, and the plug rod (24) is used for being inserted into the first jack (22) and the second jack (23).