Integrated aluminum alloy hinge joint with adjustable lever ratio

Abstract

The utility model discloses an integrated aluminum alloy hinge joint with an adjustable lever ratio. A main body structure is integrally formed by a hollow cylinder (101), an upper transverse plate (102), a lower transverse plate (103), a first vertical plate (104) and a second vertical plate (105), wherein the upper transverse plate (102) and the lower transverse plate (103) are vertically connected, and the first vertical plate (104) and the second vertical plate (105) are symmetrically distributed on the two sides of the hollow cylinder (101). The upper transverse plate and the lower transverse plate are provided with a first longitudinal through round hole (106) and a second longitudinal through round hole (107) which are parallel to the axis of the cylinder respectively, internal threads are arranged in the second round hole (107) to be connected with an adjusting bolt, and the lever fulcrum is pushed to move longitudinally by screwing the bolt and is matched with a supporting column in the first round hole (106) to achieve lever ratio adjustment. Three equidistant transverse through round holes (112-114) are formed in the portions, exceeding the transverse plates, of the vertical plates on the two sides, fourth transverse through round holes (115) are additionally formed in the outer sides of the upper portions of the third round holes (114), and an inner cavity of a hollow cylinder (101) penetrates through the space of the upper transverse plate and the space of the lower transverse plate. And the main body is made of an aluminum alloy material and is subjected to hard anodic oxidation treatment, so that light weight and wear resistance are both considered.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical connecting piece field, concretely relates to adjustable hinge structure for medical suspension equipment. BACKGROUND

[0002] The utility model relates to mechanical connecting piece field, concretely relates to adjustable hinge structure for medical suspension equipment. SUMMARY

[0003] The utility model discloses a kind of integrated adjustable lever ratio aluminium alloy hinge, it is characterized in that, including: main body structure is by hollow cylinder (101), and the upper transverse plate (102) vertically connected with it, lower transverse plate (103) and about the first vertical plate (104) and second vertical plate (105) symmetrical distribution first vertical plate (104) and second vertical plate (105) integral constitution;The upper transverse plate (102) and lower transverse plate (103) are equipped with first longitudinal through hole (106) and second longitudinal through hole (107) respectively, and the hole axis is parallel to the hollow cylinder (101) axis;The first vertical plate (104) and second vertical plate (105) are equipped with three first transverse through hole (112), second transverse through hole (113) and third transverse through hole (114) in the part of exceeding transverse plate respectively, and the axis of three through holes is in the same plane, and the plane is parallel to the hollow cylinder (101) axis;The hollow cylinder (101) inner cavity is through the space between upper transverse plate (102) and lower transverse plate (103);The first vertical plate (104) is equipped with threaded hole communicated with first longitudinal through hole (106);Second longitudinal through hole (107) is equipped with internal thread, for connecting adjusting bolt, and by screwing adjusting bolt, push point of lever is moved along longitudinal direction, cooperates with the support column in first longitudinal through hole (106), realizes lever ratio adjustment.

[0004] Preferably, the main body structure adopts aluminum alloy material, and the surface is treated by hard anodic oxidation.

[0005] Preferably, the first vertical plate (104) is equipped with upper threaded hole (116) and lower threaded hole (117) at first longitudinal through hole (106), and the hollow cylinder (101) is equipped with threaded hole (118) at the side wall connected with the first vertical plate (104), and the three threaded holes play the role of fixing the through hole or the internal connector of cylinder.

[0006] Preferably, the first vertical plate (104) and second vertical plate (105) are equipped with fourth transverse through hole (115) on the side farthest from the axis of hollow cylinder (101) above third transverse through hole (114).

[0007] The utility model discloses a hollow cylinder (101) is used for fixing the sleeve pipe to connect other mechanisms or load, and the second transverse through round hole (113) is articulated the both ends of spring arm support pipe, and the third transverse through round hole (114) of front end articulated joint and the first transverse through round hole (112) of rear end articulated joint are articulated the both ends of the connecting rod of spring arm and support pipe equal length, thereby forming parallelogram structure to guarantee the sleeve pipe fixed in the both ends hollow cylinder (101) is parallel on the different angle of spring arm all the time. In addition, the utility model can also be used as a kind of articulated joint of triangular pull rod structure, at this time, the fulcrum of lever will be directly articulated to the fourth transverse through round hole (115) of the utility model used as rear end articulated joint. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is the articulated joint perspective diagram of the utility model;

[0009] Figure 2 It is the sectioned view schematic diagram of the articulated joint of the utility model;

[0010] Figure 3 It is the schematic diagram of the utility model application to the front end of medical suspension spring arm;

[0011] Figure 4 It is the schematic diagram of the utility model application to the both ends of medical suspension spring arm;

[0012] Figure 5 It is the schematic diagram of the utility model application to the both ends of triangular pull rod structure medical suspension spring arm. DETAILED DESCRIPTION

[0013] In Figures 1-4The specific embodiment of the present invention shown herein comprises a hollow cylinder (101), an upper horizontal plate (102) and a lower horizontal plate (103) connected perpendicularly thereto, and a first vertical plate (104) and a second vertical plate (105) symmetrically distributed about the axis of the hollow cylinder (101). The upper horizontal plate (102) and the lower horizontal plate (103) are respectively provided with a first longitudinal through hole (106) and a second longitudinal through hole (107), the axis of the holes being parallel to the axis of the hollow cylinder (101). The first vertical plate (104) and the second vertical plate (105) are respectively provided with three through holes in the portion extending beyond the horizontal plate. A first transverse through hole (112), a second transverse through hole (113), and a third transverse through hole (114) are distributed equidistantly from top to bottom and parallel to the axis of the hollow cylinder (101); the inner cavity of the hollow cylinder (101) passes through the space between the upper horizontal plate (102) and the lower horizontal plate (103); the second longitudinal through hole (107) is provided with an internal thread for connecting the adjusting bolt (201). By turning the adjusting bolt (201), the lever fulcrum (202) is pushed to move longitudinally and cooperate with the support column (203) in the first longitudinal through hole (106) to realize the lever ratio adjustment.

[0014] The main structure is made of aluminum alloy and the surface is treated with hard anodizing.

[0015] The first vertical plate (104) has an upper threaded hole (116) and a lower threaded hole (117) at the first longitudinal through hole (106), and the hollow cylinder (101) has a threaded hole (118) at the side wall connected to the first vertical plate (104).

[0016] The first vertical plate (104) and the second vertical plate (105) are provided with a fourth horizontal through hole (115) above the third horizontal through hole (114) and on the side furthest from the axis of the hollow cylinder (101).

[0017] The hollow cylinder (101) of the hinge joint at both ends fixes the sleeve (204) and the sleeve (205). The second transverse through hole (113) hinges the two ends of the spring arm support tube (206). The third transverse through hole (114) of the front hinge joint and the first transverse through hole (112) of the rear hinge joint hinge the two ends of the connecting rod (207) of the spring arm and the support tube (206) of the same length, thus forming a parallelogram structure to ensure that the sleeve (204) and the sleeve (205) at both ends are always parallel at different angles of the spring arm.

[0018] exist Figure 5 The present invention can also be used as a hinge joint of a triangular tie rod structure, in which case the fulcrum of the lever will be directly hinged to the fourth transverse through hole (115) of the present invention, which is used as a rear hinge joint.

Claims

1. An integrated, adjustable lever ratio, aluminum alloy hinge joint, characterized by, The utility model relates to a lever ratio adjustable mechanism, including: The main body structure is integrally formed by hollow cylinder (101), the upper transverse plate (102) connected with it vertically, the lower transverse plate (103) and the first vertical plate (104) and the second vertical plate (105) symmetrically distributed about the axis of hollow cylinder (101);The upper transverse plate (102) and the lower transverse plate (103) are equipped with first longitudinal through-hole (106) and second longitudinal through-hole (107) respectively, and the axis of the circular hole is parallel to the axis of the hollow cylinder (101);The first vertical plate (104) and the second vertical plate (105) are equipped with three first lateral through-hole (112), second lateral through-hole (113) and third lateral through-hole (114) respectively in the part of exceeding the transverse plate and being equidistantly distributed from top to bottom and the axis being perpendicular to the axis of the hollow cylinder (101), the axis of three through holes is in the same plane, and the plane is parallel to the axis of the hollow cylinder (101);The hollow cylinder (101) inner cavity is through the space between the upper transverse plate (102) and the lower transverse plate (103);The first vertical plate (104) is equipped with the threaded hole communicated with the first longitudinal through-hole (106);The second longitudinal through-hole (107) is equipped with internal thread and is used for connecting adjusting bolt, and the supporting column in the first longitudinal through-hole (106) is cooperated by pushing the lever fulcrum to move along the longitudinal direction through the screwing adjusting bolt, and the lever ratio adjustment is realized.

2. The articulating joint of claim 1, wherein, The main body structure adopts aluminum alloy material, and the surface is treated by hard anodic oxidation.

3. The articulating joint of claim 1, wherein, The first vertical plate (104) is equipped with the first vertical plate (104) in the first longitudinal through-hole (106) and is equipped with upper threaded hole (116) and lower threaded hole (117), and the hollow cylinder (101) is equipped with threaded hole (118) in the side wall connected with the first vertical plate (104).

4. The articulating joint of claim 1, wherein, The first vertical plate (104) and the second vertical plate (105) are equipped with fourth lateral through-hole (115) on the side farthest from the axis of hollow cylinder (101) above third lateral through-hole (114).

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