Lift hinge assembly

Abstract

The utility model discloses a lift hinge assembly, it includes first main connecting rod, with first main connecting rod rotatory connection's first lower movable link, with first main connecting rod rotatory connection's first upper movable link, with first lower movable link rotatory connection's first vertical rod and be connected in first vertical rod and first upper movable link between's first hinge and with first main connecting rod connection's second hinge and install on the first bearing plate of second hinge, second main connecting rod, second main connecting rod rotatory connection's second lower movable link, with second main connecting rod rotatory connection's second upper movable link, with second lower movable link rotatory connection's second vertical rod and be connected in second vertical rod and second upper movable link's third hinge and with second main connecting rod connection's fourth hinge and install on the second bearing plate of fourth hinge, be connected in first, second lower movable link's connecting frame, first, second bearing plate can adjust angle respectively to first, second main connecting rod, and the bearing surface of first, second bearing plate is located same plane.

Description

Technical Field

[0001] This utility model relates to the technical field of hinge products, and specifically to a lifting hinge assembly. Background Technology

[0002] Chinese utility model patent application number 202421755220.0 discloses a four-bar linkage, which includes a lower fixed rod, an upper movable rod, a front rotating support arm, and a rear rotating support arm. The front and rear rotating support arms are boomerang-shaped with their inflection points facing away from each other. The two ends of the front and rear rotating support arms are rotatably connected between the lower fixed rod and the upper movable rod, forming a four-bar linkage. The upper movable rod moves parallel to the lower fixed rod under the rotational support of the front and rear rotating support arms. This four-bar linkage allows the sofa's movable seat frame to fold or unfold by pushing and pulling, effectively reducing the folding or unfolding range of the seat frame and making the folding or unfolding operation easy and convenient.

[0003] Although the aforementioned four-bar linkage can achieve translational lifting function, the upper movable rod at its upper end cannot be adjusted in angle, which fails to meet the usage requirements and causes considerable inconvenience to users.

[0004] In view of the above, the inventors propose the following technical solution. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a lifting hinge assembly.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: the lifting hinge assembly includes a vertically distributed first main connecting rod, a first lower movable rod whose left end is rotatably connected to the lower end of the first main connecting rod, a first upper movable rod whose left end is rotatably connected to the lower middle part of the first main connecting rod, a first vertical rod whose right end is rotatably connected to the right end of the first lower movable rod, a first hinge connecting the upper end of the first vertical rod and the right end of the first upper movable rod, a second hinge connected to the upper end of the first main connecting rod, a first bearing plate mounted on the second hinge, a vertically distributed second main connecting rod, and a first lower movable rod whose left end is rotatably connected to the lower middle part of the first main connecting rod. The system comprises a second lower movable rod that is rotatably connected to the first lower movable rod, a second upper movable rod that is rotatably connected to the lower middle part of the second main connecting rod at its left end, a second vertical rod that is rotatably connected to the right end of the second lower movable rod, a third hinge connected to the upper end of the second vertical rod and the right end of the second upper movable rod, a fourth hinge connected to the upper end of the second main connecting rod, a second bearing plate mounted on the fourth hinge, and a connecting frame connecting the first lower movable rod and the second lower movable rod. The first bearing plate and the second bearing plate can be adjusted at an angle relative to the first main connecting rod and the second main connecting rod, and the bearing surfaces of the first bearing plate and the second bearing plate are located on the same plane.

[0007] Furthermore, in the above technical solution, the first assembly formed by the first main connecting rod, the first lower movable rod, the first upper movable rod, the first vertical rod, the first hinge, the second hinge, and the first bearing plate has the same structure as the second assembly formed by the second main connecting rod, the second lower movable rod, the second upper movable rod, the second vertical rod, the third hinge, the fourth hinge, and the second bearing plate, and is symmetrically distributed.

[0008] Furthermore, in the above technical solution, the connecting frame has a symmetrical structure.

[0009] Furthermore, in the above technical solution, the connecting frame includes a connecting rod and a first connecting plate and a second connecting plate fixedly connected to both ends of the connecting rod and distributed perpendicularly to the connecting rod. The first connecting plate and the second connecting plate are respectively attached to and fixedly installed with the first lower movable rod and the second lower movable rod.

[0010] Furthermore, in the above technical solution, one end of the first hinge has two rows of spaced-apart first hinge plates and second hinge plates, which are clamped on both sides of the right end of the first upper movable rod and fixed by screws or rivets; the other end of the first hinge has two rows of spaced-apart third hinge plates and fourth hinge plates, which are clamped on both sides of the upper end of the first vertical rod and fixed by screws or rivets; the structure of the third hinge is the same as the structure of the first hinge.

[0011] Furthermore, in the above technical solution, the second hinge includes two central plates that are located at the center and overlap each other, a first side plate and a second side plate that are rotatably installed on both sides of the two central plates via pins, a shift pin assembly installed between the two central plates and the first and second side plates, and a first cover and a second cover respectively disposed on the outside of the first and second side plates and covering the shift pin assembly. The first side plate and the second side plate can adjust their angle relative to the central plate through the shift pin assembly. The first side plate and the second side plate are clamped to the upper end of the first main connecting rod and fixed by screws or rivets. The first bearing plate is fixedly connected to the central plate.

[0012] Furthermore, in the above technical solution, the lower ends of the first side plate and the second side plate are respectively stamped from the inside out to form a first gear groove and a second gear groove; the inner walls of the first gear groove and the second gear groove are respectively formed with a plurality of first protruding teeth and second protruding teeth distributed in a stepped manner; the gear pin assembly includes a gear pin that passes through the center plate and is movable, and a spring that abuts against the gear pin to provide elastic force to the gear pin; the two sides of the gear pin extend out of the two sides of the center plate and are respectively embedded in the first gear groove of the first side plate and the second gear groove of the second side plate, and are blocked by the first cover and the second cover; and the teeth on the gear pin are tightly engaged with the first protruding teeth and the second protruding teeth under the elastic force of the spring.

[0013] Furthermore, in the above technical solution, the gear pin is plate-shaped, and the upper side of its end is formed with the toothed groove by a semi-cutting stamping method, and the lower side of the end of the gear pin is formed with a third protrusion corresponding to the toothed groove position, and the end of the spring abuts against the rear side of the third protrusion.

[0014] Furthermore, in the above technical solution, the upper end of the center plate has a center hole through which the pin passes. The upper end of the center plate is provided with a first receiving hole for accommodating the spring piece and a first movable hole communicating with the first receiving hole outside the center hole. The stop pin is inserted into the first movable hole and can move in the first movable hole. The spring piece is inserted and positioned in the first receiving hole, and the end of the spring piece extends into the first movable hole and abuts against the rear side of the third protrusion. The spring piece includes a C-shaped base and a spring arm integrally formed on the base. The base is embedded and positioned in the first receiving hole, and the end of the spring arm extends into the first movable hole after passing through the first receiving hole and abuts against the rear side of the third protrusion.

[0015] Furthermore, in the above technical solution, the structure of the fourth hinge is the same as that of the second hinge.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention fixes the first and second vertical rods on the base, and installs the moving part on the bearing surface of the first and second bearing plates. When it is necessary to move the moving part relative to the base by translation and lifting, the first main connecting rod can move it relative to the first vertical rod through the first lower movable rod and the first upper movable rod. At the same time, the second main connecting rod can move it relative to the second vertical rod through the second lower movable rod and the second upper movable rod. The first lower movable rod and the second lower movable rod are connected by a connecting frame, so that the first and second main connecting rods can move synchronously, thereby enabling the moving part to achieve stable translation and lifting relative to the base. In addition, since the first and second bearing plates can be adjusted relative to the first and second main connecting rods by the second hinge and the fourth hinge respectively, the moving part can achieve stable translation and lifting relative to the base while also adjusting its angle to meet different usage requirements. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the first hinge in this utility model; Figure 3 This is a perspective view of the third hinge in this utility model; Figure 4 This is a perspective view of the fourth hinge in this utility model. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0019] See Figure 1-4 As shown, a lifting hinge assembly includes a vertically distributed first main connecting rod 11, a first lower movable rod 12 whose left end is rotatably connected to the lower end of the first main connecting rod 11, a first upper movable rod 13 whose left end is rotatably connected to the lower middle part of the first main connecting rod 11, a first vertical rod 14 rotatably connected to the right end of the first lower movable rod 12, a first hinge 2 connecting the upper end of the first vertical rod 14 and the right end of the first upper movable rod 13, a second hinge 3 connected to the upper end of the first main connecting rod 11, a first bearing plate 15 mounted on the second hinge 3, a vertically distributed second main connecting rod 41, and a second lower movable rod whose left end is rotatably connected to the lower end of the second main connecting rod 41. 42. A second upper movable rod 43, which is rotatably connected to the lower part of the second main connecting rod 41 at its left end; a second vertical rod 44, which is rotatably connected to the right end of the second lower movable rod 42; a third hinge 5, which is connected to the upper end of the second vertical rod 44 and the right end of the second upper movable rod 43; a fourth hinge 6, which is connected to the upper end of the second main connecting rod 41; a second bearing plate 45, which is mounted on the fourth hinge 6; and a connecting frame 7, which is connected to the first lower movable rod 12 and the second lower movable rod 42. The first bearing plate 15 and the second bearing plate 45 can be adjusted at an angle relative to the first main connecting rod 11 and the second main connecting rod 41, respectively, and the bearing surfaces of the first bearing plate 15 and the second bearing plate 45 are located on the same plane. This invention fixes the first vertical rod 14 and the second vertical rod 44 to the base, and mounts the moving component on the bearing surfaces of the first bearing plate 15 and the second bearing plate 45. When it is necessary to move the moving component relative to the base, the first main connecting rod 11 can move it relative to the first vertical rod 14 via the first lower movable rod 12 and the first upper movable rod 13. At the same time, the second main connecting rod 41 can move it relative to the second vertical rod 44 via the second lower movable rod 42 and the second upper movable rod 43. The first lower movable rod 12 and the second lower movable rod 42 are connected by a connecting frame 7, so that the first main connecting rod 11 and the second main connecting rod 41 can move synchronously, thereby enabling the moving component to achieve stable translation and lifting relative to the base. In addition, since the first bearing plate 15 and the second bearing plate 45 can be adjusted relative to the first main connecting rod 11 and the second main connecting rod 41 via the second hinge 3 and the fourth hinge 6 respectively, the moving component can achieve stable translation and lifting relative to the base while also adjusting its angle to meet different usage requirements.

[0020] The first component 1, formed by the first main connecting rod 11, the first lower movable rod 12, the first upper movable rod 13, the first vertical rod 14, the first hinge 2, the second hinge 3, and the first bearing plate 15, has the same structure as the second component 4, formed by the second main connecting rod 41, the second lower movable rod 42, the second upper movable rod 43, the second vertical rod 44, the third hinge 5, the fourth hinge 6, and the second bearing plate 45, and is symmetrically distributed. This makes the structure of this utility model simpler, and multiple parts can be shared or replaced, reducing the types of parts and material costs, giving this utility model a strong market competitiveness.

[0021] The connecting frame 7 has a symmetrical structure, which is simpler and has better balance. Specifically, the connecting frame 7 includes a connecting rod 71 and a first connecting plate 72 and a second connecting plate 73 fixedly connected to both ends of the connecting rod 71 and distributed perpendicularly to the connecting rod 71. The first connecting plate 72 and the second connecting plate 73 are respectively attached to and fixedly installed with the first lower movable rod 12 and the second lower movable rod 42 to form a stable assembly.

[0022] The first hinge 2 has two rows of spaced-apart first hinge plates 21 and second hinge plates 22 at one end. These first hinge plates 21 and second hinge plates 22 are clamped to both sides of the right end of the first upper movable rod 13 and fixed with screws or rivets to form a stable assembly. The other end of the first hinge 2 has two rows of spaced-apart third hinge plates 23 and fourth hinge plates 24. These third hinge plates 23 and fourth hinge plates 24 are clamped to both sides of the upper end of the first vertical rod 14 and fixed with screws or rivets to form a stable assembly. The structure of the third hinge 5 is the same as that of the first hinge 2, and will not be described in detail here. That is, one type of hinge can be used as two hinges, which is convenient to use and low in cost.

[0023] The second hinge 3 includes two central plates 31 that are located in the center and overlap each other, a first side plate 32 and a second side plate 33 that are rotatably mounted on both sides of the two central plates 31 via pins 310, a shift pin assembly 34 that is installed between the two central plates 31, the first side plate 32 and the second side plate 33, and a first cover 35 and a second cover 36 that are respectively disposed on the outside of the first side plate 32 and the second side plate 33 and cover the shift pin assembly 34. The first side plate 32 and the second side plate 33 can be adjusted in angle relative to the central plate 31 by the shift pin assembly 34. The first side plate 32 and the second side plate 33 are clamped to the upper end of the first main connecting rod 11 and fixed by screws or rivets. The first bearing plate 15 is fixedly connected to the central plate 31.

[0024] The lower ends of the first side plate 32 and the second side plate 33 are respectively stamped from the inside out to form a first gear groove 321 and a second gear groove 331; the inner walls of the first gear groove 321 and the second gear groove 331 are respectively formed with a plurality of first protrusions 320 and second protrusions 330 distributed in a stepped manner; the gear pin assembly 34 includes a gear pin 341 that passes through the center plate 31 and is movable, and a spring piece 342 that abuts against the gear pin 341 to provide elastic force to the gear pin 341. The two sides of the gear pin 341 extend out of the two sides of the center plate 31 and are respectively embedded in the first gear groove 321 of the first side plate 32 and the second gear groove 331 of the second side plate 33, and are blocked by the first cover 35 and the second cover 36. The tooth groove 3411 on the gear pin 341 is tightly attached to the first protrusions 320 and the second protrusions 330 for engagement under the elastic force of the spring piece 342.

[0025] The toothed groove 3411 on the gear pin 341 is engaged with the first protruding tooth 320 and the second protruding tooth 330 under the elastic force of the spring piece 342, so that the first and second side plates and the center plate 31 can be positioned, that is, the center plate 31 cannot rotate backward (i.e. clockwise) relative to the first and second side plates. At this time, the center plate 31 can rotate forward (i.e. counterclockwise) relative to the first and second side plates, so that the groove 3411 on the gear pin 341 engages with the next first tooth 320 and second tooth 330, thereby adjusting the angle of the center plate 31 relative to the first and second side plates. The minimum angle between the first and second side plates and the center plate 31 is adjusted until the groove 3411 on the gear pin 341 engages with the lowest first tooth 320 and second tooth 330; the maximum angle between the first and second side plates and the center plate 31 is adjusted until the groove 3411 on the gear pin 341 engages with the highest first tooth 320 and second tooth 330. The angle adjusted each time is 1-20° to meet different usage requirements.

[0026] The gear pin 341 is plate-shaped, and the upper side of its end is formed with the toothed groove 3411 by a semi-cutting stamping method. The lower side of the end of the gear pin 341 is formed with a third protrusion 3412 corresponding to the position of the toothed groove 3411. The end of the spring piece 342 abuts against the rear side of the third protrusion 3412.

[0027] The upper end of the center plate 31 has a center hole 311 through which the pin 310 passes. The upper end of the center plate 31 has a first receiving hole 312 for accommodating the spring piece 342 and a first movable hole 313 communicating with the first receiving hole 312 outside the center hole 311. The stop pin 341 passes through the first movable hole 313 and can move in the first movable hole 313. The spring piece 342 passes through and is located in the first receiving hole 312. After the end of the spring piece 342 extends into the first movable hole 313, it abuts against the rear side of the third protrusion 3412, thereby making the stop pin piece stronger and the production cost lower.

[0028] The spring piece 342 includes a C-shaped base 3421 and a spring arm 3422 integrally formed on the base 3421. The base 3421 is embedded and positioned in the first receiving hole 312. The end of the spring arm 3422 passes through the first receiving hole 312 and extends into the first movable hole 313 and abuts against the rear side of the third protrusion 3412, thereby providing stable elasticity for the shift pin.

[0029] The number of gear pin assemblies 34 is two sets, which are distributed in a rotationally symmetrical manner, and can ensure that the center plate 31 and the gear pin assembly 34 are stably positioned during positioning.

[0030] The first side plate 32 and the second side plate 33 have the same shape and structure, and are installed in a mirror image symmetrically.

[0031] The structure of the fourth hinge 6 is the same as that of the second hinge 3, and will not be described in detail here. That is, one type of hinge can be used as two hinges, which is convenient to use and low in cost.

[0032] In summary, this utility model fixes the first vertical rod 14 and the second vertical rod 44 to the base, and installs the moving component on the bearing surfaces of the first bearing plate 15 and the second bearing plate 45. When it is necessary to move the moving component relative to the base, the first main connecting rod 11 can move it relative to the first vertical rod 14 via the first lower movable rod 12 and the first upper movable rod 13. At the same time, the second main connecting rod 41 can move it relative to the second vertical rod 44 via the second lower movable rod 42 and the second upper movable rod 43. The first lower movable rod 12 and the second lower movable rod 42 are connected by a connecting frame 7, so that the first main connecting rod 11 and the second main connecting rod 41 can move synchronously, thereby enabling the moving component to achieve stable translation and lifting relative to the base. In addition, since the first bearing plate 15 and the second bearing plate 45 can be adjusted relative to the first main connecting rod 11 and the second main connecting rod 41 via the second hinge 3 and the fourth hinge 6 respectively, the moving component can achieve stable translation and lifting relative to the base while also adjusting its angle to meet different usage requirements.

[0033] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A lifting hinge assembly, characterized in that: The system includes a vertically distributed first main connecting rod (11), a first lower movable rod (12) whose left end is rotatably connected to the lower end of the first main connecting rod (11), a first upper movable rod (13) whose left end is rotatably connected to the lower middle part of the first main connecting rod (11), a first vertical rod (14) whose right end is rotatably connected to the first lower movable rod (12), a first hinge (2) connecting the upper end of the first vertical rod (14) and the right end of the first upper movable rod (13), a second hinge (3) connected to the upper end of the first main connecting rod (11), and a first bearing plate (15) mounted on the second hinge (3), a vertically distributed second main connecting rod (41), a second lower movable rod (42) whose left end is rotatably connected to the lower end of the second main connecting rod (41), and a first bearing plate (15) whose left end is rotatably connected to the second main connecting rod (12). The lower part of the rod (41) forms a second upper movable rod (43) rotatably connected to the second lower movable rod (42), a second vertical rod (44) rotatably connected to the right end of the second lower movable rod (42), a third hinge (5) connected to the upper end of the second vertical rod (44) and the right end of the second upper movable rod (43), a fourth hinge (6) connected to the upper end of the second main connecting rod (41), a second bearing plate (45) installed on the fourth hinge (6), and a connecting frame (7) connected to the first lower movable rod (12) and the second lower movable rod (42). The first bearing plate (15) and the second bearing plate (45) can adjust their angles relative to the first main connecting rod (11) and the second main connecting rod (41), and the bearing surfaces of the first bearing plate (15) and the second bearing plate (45) are located on the same plane.

2. The lifting hinge assembly according to claim 1, characterized in that: The first component (1) formed by the first main connecting rod (11), the first lower movable rod (12), the first upper movable rod (13), the first vertical rod (14), the first hinge (2), the second hinge (3) and the first bearing plate (15) has the same structure as the second component (4) formed by the second main connecting rod (41), the second lower movable rod (42), the second upper movable rod (43), the second vertical rod (44), the third hinge (5), the fourth hinge (6) and the second bearing plate (45), and is symmetrically distributed.

3. The lifting hinge assembly according to claim 1, characterized in that: The connecting frame (7) has a symmetrical structure.

4. A lifting hinge assembly according to claim 3, characterized in that: The connecting frame (7) includes a connecting rod (71) and a first connecting plate (72) and a second connecting plate (73) fixedly connected to both ends of the connecting rod (71) and distributed perpendicularly to the connecting rod (71). The first connecting plate (72) and the second connecting plate (73) are respectively attached to and fixedly installed with the first lower movable rod (12) and the second lower movable rod (42).

5. A lifting hinge assembly according to any one of claims 1-4, characterized in that: The first hinge (2) has two rows of spaced first hinge plates (21) and second hinge plates (22) at one end. The first hinge plates (21) and second hinge plates (22) are clamped on both sides of the right end of the first upper movable rod (13) and fixed by screws or rivets. The first hinge (2) has two rows of spaced third hinge plates (23) and fourth hinge plates (24) at the other end. The third hinge plates (23) and fourth hinge plates (24) are clamped on both sides of the upper end of the first vertical rod (14) and fixed by screws or rivets. The structure of the third hinge (5) is the same as that of the first hinge (2).

6. A lifting hinge assembly according to any one of claims 1-4, characterized in that: The second hinge (3) includes two center plates (31) located in the center and overlapping each other, a first side plate (32) and a second side plate (33) rotatably mounted on both sides of the two center plates (31) via a pin (310), a shift pin assembly (34) mounted between the two center plates (31) and the first side plate (32) and the second side plate (33), a first cover (35) and a second cover (36) respectively disposed on the outside of the first side plate (32) and the second side plate (33) and covering the shift pin assembly (34), the first side plate (32) and the second side plate (33) can be adjusted in angle relative to the center plate (31) by the shift pin assembly (34), the first side plate (32) and the second side plate (33) are clamped on the upper end of the first main connecting rod (11) and fixed by screws or rivets; the first bearing plate (15) is fixedly connected to the center plate (31).

7. A lifting hinge assembly according to claim 6, characterized in that: The lower ends of the first side plate (32) and the second side plate (33) are respectively stamped from the inside out to form a first gear groove (321) and a second gear groove (331); the inner walls of the first gear groove (321) and the second gear groove (331) are respectively formed with a plurality of first protrusions (320) and second protrusions (330) distributed in a stepped manner; the gear pin assembly (34) includes a gear pin (341) that passes through the center plate (31) and is movable, and a gear pin (341) that abuts against the gear pin (341) to engage the gear pin (341). 1) A spring piece (342) provides elastic force. The two sides of the shift pin (341) extend out of the two sides of the center plate (31) and are respectively embedded in the first shift groove (321) of the first side plate (32) and the second shift groove (331) of the second side plate (33), and are blocked by the first cover (35) and the second cover (36). The tooth groove (3411) on the shift pin (341) is tightly engaged with the first tooth (320) and the second tooth (330) under the elastic force of the spring piece (342).

8. A lifting hinge assembly according to claim 7, characterized in that: The gear shift pin (341) is plate-shaped, and the upper side of its end is formed with the toothed groove (3411) by a semi-cutting stamping method. The lower side of the end of the gear shift pin (341) is formed with a third protrusion (3412) corresponding to the position of the toothed groove (3411). The end of the spring piece (342) abuts against the rear side of the third protrusion (3412).

9. A lifting hinge assembly according to claim 8, characterized in that: The upper end of the center plate (31) has a center hole (311) through which the pin (310) passes. The upper end of the center plate (31) has a first receiving hole (312) for accommodating the spring piece (342) and a first movable hole (313) communicating with the first receiving hole (312) outside the center hole (311). The stop pin (341) passes through the first movable hole (313) and can move within it. The spring piece (342) is located within the first receiving hole (312). Furthermore, the end of the spring piece (342) extends into the first movable hole (313) and abuts against the rear side of the third protrusion (3412); the spring piece (342) includes a C-shaped base (3421) and a spring arm (3422) integrally formed on the base (3421). The base (3421) is embedded and positioned in the first receiving hole (312). The end of the spring arm (3422) passes through the first receiving hole (312) and extends into the first movable hole (313) and abuts against the rear side of the third protrusion (3412).

10. A lifting hinge assembly according to claim 9, characterized in that: The structure of the fourth hinge (6) is the same as that of the second hinge (3).

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