Hinge capable of realizing stepless speed change

Abstract

The utility model discloses a hinge capable of realizing stepless speed change, which relates to the technical field of hinges and comprises an adjusting mechanism, a stepless speed change mechanism is arranged at the top of the adjusting mechanism and comprises a cup head, one side of the cup head is rotatably connected with a first connecting rod, and a torsion spring is arranged at one end of the first connecting rod. Through the arrangement of the stepless speed change mechanism, when the cup head rotates, the torsion spring presses the shaft sleeve and simultaneously drives the second connecting rod to rotate along the steel shaft, so that the included angle between the third connecting rod and the speed change connecting rod is 90 degrees, and the transmission ratio of two end holes of the connecting rod is adjusted to ensure reasonable compression damper speed; when the force transmitted by the connecting rods changes, the compression speed of the damper can be controlled to be constant, and when the included angle between the cup head and the first connecting rod is reduced to a certain degree, the compression speed of the damper is not reduced, so that the hinge is prevented from being damaged due to improper operation, the service life of the hinge is prolonged, the use experience effect is improved, and the hinge cannot violently collide with a cabinet body when a door is closed vigorously.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge technical field, concretely relates to a kind of hinges of infinitely variable speed. BACKGROUND

[0002] Hinge is a kind of mechanical device for connecting two solids and allowing them to rotate relative to each other, widely used in daily life and industrial production, is the tool for connecting two objects and enabling them to rotate relative to each other. For example, after installing hinge between door and door frame, the door can be opened and closed rotation around the hinge shaft pin, to realize the opening and closing operation of door. This rotating function requires the hinge to have a certain rotating angle range, the rotating angle of general common hinge is between 90 degrees and 180 degrees, but some special purpose hinges can realize larger angle even 360 degrees rotation, such as the rotating connection device in some industrial equipment.

[0003] When the hinge is used as a connecting piece between cabinet door and cabinet body, improper operation may occur, such as sudden use of large force to close the cabinet door. The rotating speed of the traditional hinge is affected by the pushing of the cabinet door, which easily leads to rapid rotation of the cabinet door under the action of inertia and violent impact with the cabinet body, thereby causing damage to the hinge and poor user experience, and there is certain inconvenience in use. SUMMARY

[0004] The utility model provides a kind of hinges of infinitely variable speed to solve the problems raised in the above background.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0006] A kind of hinges of infinitely variable speed, including adjusting mechanism, the top of the adjusting mechanism is provided with infinitely variable speed mechanism, the infinitely variable speed mechanism includes cup head, one side of the cup head is rotatably connected with first connecting rod, one end of the first connecting rod is provided with torsional spring, the second connecting rod is rotatably connected with the lower side of the first connecting rod close to torsional spring, one side of the second connecting rod is rotatably connected with third connecting rod, one end of the third connecting rod is rotatably connected with speed change connecting rod, one end of the speed change connecting rod is rotatably connected with damper.

[0007] The further improvement of the technical scheme of the utility model is that: the adjusting mechanism includes base, the surface of the base is provided with first fixed screw, the top of the base is provided with assembly part.

[0008] The further improvement of the technical scheme of the utility model is that: the top of the assembly part is provided with adjusting groove, one side of the top of the assembly part is provided with adjusting block.

[0009] The further improvement in the utility model technical scheme lies in that the surface of the assembling part is provided with an arm body, one end of the arm body is rotationally connected with one end of the first connecting rod.

[0010] The further improvement in the utility model technical scheme lies in that the top of the arm body is rotationally connected with an adjusting knob, and the bottom of the adjusting knob is provided with a spiral lug.

[0011] The further improvement in the utility model technical scheme lies in that the inner wall of the spiral lug is engaged with the surface of the adjusting block, and the surface of the arm body is screw-connected with a second fixing screw.

[0012] The further improvement in the utility model technical scheme lies in that the bottom of the second fixing screw is rotationally connected with a pressing block, and the bottom of the pressing block is overlapped with the top of the assembling part.

[0013] The further improvement in the utility model technical scheme lies in that the inside of the second connecting rod is rotationally connected with the inner wall of the arm body through a steel shaft, both ends of the steel shaft are provided with shaft sleeves, the inside of the variable-speed connecting rod is rotationally connected with the inner wall of the arm body through another steel shaft, and one end of the damper is rotationally connected with the inner wall of the arm body.

[0014] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0015] The utility model provides a kind of infinitely variable speed hinge, by the setting of infinitely variable speed mechanism, cup head rotates when torsional spring presses down shaft sleeve, simultaneously drives second connecting rod to rotate along steel shaft, so that the included angle between third connecting rod and variable-speed connecting rod is degree, the transmission ratio of adjusting connecting rod two end holes can be guaranteed to be compressed damper speed, the force transmitted by connecting rod can be controlled when change, and damper compression speed is uniform speed, when the included angle of cup head and first connecting rod is reduced to degree, damper compression speed does not slow down, thereby avoiding hinge damage when improper operation, improve hinge life and experience effect when using, when forceful door, it will not be violently impacted with cabinet body. DRAWINGS

[0016] Figure 1 It is front view structure schematic drawing of the utility model;

[0017] Figure 2 It is exploded structure schematic drawing of the utility model;

[0018] Figure 3 It is exploded bottom view structure schematic drawing of the utility model;

[0019] Figure 4 It is infinitely variable speed mechanism structure schematic drawing of the utility model;

[0020] Figure 5The utility model discloses a non -step speed change mechanism front structure schematic drawing.

[0021] In the drawing: 11, base, 12, first fixed screw, 13, assembly, 14, adjusting groove, 15, adjusting block, 16, arm body, 17, adjusting knob, 18, spiral lug, 19, second fixed screw, 110, pressure block, 21, cup head, 22, first connecting rod, 23, torsional spring, 24, second connecting rod, 25, third connecting rod, 26, speed change connecting rod, 27, damper. DETAILED DESCRIPTION

[0022] The utility model makes further detailed explanation in combination with the embodiment below:

[0023] Embodiment 1

[0024] As Figures 1-5 shown, the utility model provides a kind of hinge of non -step speed change, including adjusting mechanism, the top of adjusting mechanism is provided with non -step speed change mechanism, non -step speed change mechanism includes cup head 21, cup head 21 one side is rotatably connected with first connecting rod 22, and one end of first connecting rod 22 is provided with torsional spring 23, and the below of the side close to torsional spring 23 of first connecting rod 22 is rotatably connected with second connecting rod 24, and one side of second connecting rod 24 is rotatably connected with third connecting rod 25, and one end of third connecting rod 25 is rotatably connected with speed change connecting rod 26, and one end of speed change connecting rod 26 is rotatably connected with damper 27.

[0025] In the embodiment, by when using, base 11 is installed to cabinet body, cup head 21 is installed to cabinet door, when closing cabinet door, cup head 21 rotates and makes first connecting rod 22 rotate, pushes torsional spring 23 and steel shaft surface sleeve contact, simultaneously makes second connecting rod 24 along steel shaft rotation, drives third connecting rod 25 to rotate, adjusts the included angle between third connecting rod 25 and speed change connecting rod 26, makes the included angle sixty degrees, further makes the transmission ratio of adjusting connecting rod both ends hole, can guarantee that speed change connecting rod 26 compresses damper 27 speed balance, and the force of connecting rod transmission can control damper compression speed when change is uniform speed, when the included angle of cup head and first connecting rod reduces to fifteen degrees, damper compression speed does not change slowly, to avoid that hinge is damaged when improper operation.

[0026] Embodiment 2

[0027] As Figures 1-5As shown, on the basis of example 1, the utility model provides a technical scheme: preferably, the adjusting mechanism includes base 11, the surface of base 11 is provided with first fixed screw 12, the top of base 11 is provided with assembly piece 13, the top of assembly piece 13 is provided with adjusting groove 14, one side of the top of assembly piece 13 is provided with adjusting block 15, the surface of assembly piece 13 is provided with arm body 16, one end of arm body 16 is rotatably connected with one end of first connecting rod 22, the top of arm body 16 is rotatably connected with adjusting knob 17, the bottom of adjusting knob 17 is provided with spiral lug 18.

[0028] In the embodiment, by loosening second fixed screw 19 during installation as required, make the pressing block 110 and assembly piece 13 disengage, rotate adjusting knob 17, under the engagement of spiral lug 18 and adjusting block 15, make spiral lug 18 rotate, push adjusting block 15 to move, further adjust the position of assembly piece 13 in arm body 16, thereby adjust the distance between cabinet door and cabinet body, make it more convenient to use.

[0029] Example 3

[0030] As Figures 1-5 As shown, on the basis of example 1, the utility model provides a technical scheme: preferably, the inner wall of spiral lug 18 is engaged with the surface of adjusting block 15, the surface of arm body 16 is screw-connected with second fixed screw 19, the bottom of second fixed screw 19 is rotatably connected with pressing block 110, the bottom of pressing block 110 is overlapped with the top of assembly piece 13, the inner portion of second connecting rod 24 is rotatably connected with the inner wall of arm body 16 through steel shaft, the both ends of steel shaft are provided with shaft sleeve, the inner portion of variable speed connecting rod 26 is rotatably connected with the inner wall of arm body 16 through another steel shaft, one end of damper 27 is rotatably connected with the inner wall of arm body 16.

[0031] In the embodiment, by installing base 11 into cabinet body and cup head 21 into cabinet door when using, when closing cabinet door, cup head 21 rotates to make first connecting rod 22 rotate, push torsional spring 23 to contact with the surface of steel shaft sleeve, at the same time make second connecting rod 24 rotate along steel shaft, drive third connecting rod 25 to rotate, adjust the included angle between third connecting rod 25 and variable speed connecting rod 26, make the included angle sixty degrees, further make the transmission ratio of adjusting connecting rod both end holes.

[0032] The working principle of the infinitely variable speed hinge will be described below.

[0033] As Figures 1-5As shown, in use, the base 11 is installed into the cabinet body, and the cup head 21 is installed into the cabinet door. When the cabinet door is closed, the cup head 21 is rotated to rotate the first connecting rod 22, push the torsional spring 23 into contact with the surface shaft sleeve, rotate the second connecting rod 24 along the steel shaft, drive the third connecting rod 25 to rotate, adjust the included angle between the third connecting rod 25 and the variable speed connecting rod 26 to be sixty degrees, and further adjust the transmission ratio of the two end holes of the adjusting connecting rod, so as to ensure that the variable speed connecting rod 26 compresses the damper 27 at a uniform speed, and when the force transmitted by the connecting rod changes, the compression speed of the damper can be controlled to be uniform, and when the included angle between the cup head and the first connecting rod is reduced to fifteen degrees, the compression speed of the damper does not slow down, thereby avoiding damage to the hinge due to improper operation, and at the same time, according to the needs, the second fixing screw 19 is loosened during installation to separate the pressing block 110 from the assembled part 13, the adjusting knob 17 is rotated, the screw convex block 18 is engaged with the adjusting block 15, the screw convex block 18 is rotated to push the adjusting block 15 to move, and further adjust the position of the assembled part 13 in the arm body 16, thereby adjusting the distance between the cabinet door and the cabinet body, and making it more convenient to use.

[0034] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, without departing from the spirit of the utility model, the modifications or improvements are within the scope of the utility model.

Claims

1. A continuously variable speed hinge comprising an adjustment mechanism, characterised in that: The top of the adjusting mechanism is provided with a stepless speed change mechanism, the stepless speed change mechanism comprises a cup head (21), one side of the cup head (21) is rotationally connected with a first connecting rod (22), one end of the first connecting rod (22) is provided with a torsional spring (23), the lower side of the first connecting rod (22) close to the torsional spring (23) is rotationally connected with a second connecting rod (24), one side of the second connecting rod (24) is rotationally connected with a third connecting rod (25), one end of the third connecting rod (25) is rotationally connected with a speed change connecting rod (26), one end of the speed change connecting rod (26) is rotationally connected with a damper (27).

2. A constant speed hinge according to claim 1, wherein: The adjusting mechanism comprises a base (11), the surface of the base (11) is provided with a first fixing screw (12), and the top of the base (11) is provided with an assembling piece (13).

3. A constant speed infinitely variable hinge according to claim 2, wherein: The top of the assembling piece (13) is provided with an adjusting groove (14), and one side of the top of the assembling piece (13) is provided with an adjusting block (15).

4. A constant speed hinge according to claim 3, wherein: The surface of the assembling piece (13) is provided with an arm body (16), and one end of the arm body (16) is rotationally connected with one end of the first connecting rod (22).

5. A constant speed infinitely variable hinge according to claim 4, wherein: The top of the arm body (16) is rotationally connected with an adjusting knob (17), and the bottom of the adjusting knob (17) is provided with a spiral protrusion (18).

6. A constant speed hinge according to claim 5, wherein: The inner wall of the spiral protrusion (18) is in engagement with the surface of the adjusting block (15), and the surface of the arm body (16) is threadedly connected with a second fixing screw (19).

7. A constant speed infinitely variable hinge according to claim 6, wherein: The bottom of the second fixing screw (19) is rotationally connected with a pressing block (110), and the bottom of the pressing block (110) is overlapped with the top of the assembling piece (13).

8. A constant speed hinge according to claim 1, wherein: The inner portion of the second connecting rod (24) is rotationally connected with the inner wall of the arm body (16) through a steel shaft, both ends of the steel shaft are provided with shaft sleeves, the inner portion of the speed change connecting rod (26) is rotationally connected with the inner wall of the arm body (16) through another steel shaft, and one end of the damper (27) is rotationally connected with the inner wall of the arm body (16).

Images