WO2019213847A1

WO2019213847A1 - High-precision hydraulic damping hinge having a hydraulic oil amount fine adjustment function

Info

Publication number: WO2019213847A1
Application number: PCT/CN2018/086072
Authority: WO
Inventors: 胡能军
Original assignee: 深圳市金合联供应链技术有限公司
Priority date: 2018-05-08
Filing date: 2018-05-08
Publication date: 2019-11-14

Abstract

A high-precision hydraulic damping hinge having a hydraulic oil amount fine adjustment function, comprising an oil cylinder (1), a rotating shaft (2) and a cylinder head (3); an oil amount fine adjustment passage (14) in communication with an oil storage chamber being provided in the cylinder wall of the oil cylinder (1), an oil fine adjustment rod (4) being provided in the oil amount fine adjustment passage (14), the end section of the oil fine adjustment rod (4) being connected to the oil amount fine adjustment passage (14) in a threaded manner, the tail end of the oil fine adjustment rod (4) being provided with an adjustment tool connection groove (41). In the case where the torque is large, by performing thread adjustment on the oil fine adjustment rod, the damping hinge outwardly retreats the oil fine adjustment rod by a certain distance to reduce the torque of the hinge; and in the case where the torque is small, by performing thread adjustment on the oil fine adjustment rod, the damping hinge inwardly pushes the oil fine adjustment rod by a certain distance to increase the torque of the hinge, thereby overcoming the technical problem of unstable product performance due to the poor control of the amount of internal hydraulic oil during hydraulic damping hinge production and the unstable volume of the inner cavity of the housing.

Description

High-precision hydraulic damping hinge with fine adjustment of hydraulic grease

Technical field

The utility model relates to the technical field of hydraulic damping hinges.

Background technique

Because the current hydraulic damping hinge torque change is relatively large, the reasons are: 1, the internal hydraulic grease control is not in place; 2, the inner cavity volume of the casing is unstable, resulting in unstable product performance.

technical problem

In summary, the purpose of the utility model is to solve the technical problem that the current hydraulic damping hinge torque variation is relatively large and the precision adjustment cannot be performed, and a high-precision hydraulic damping hinge with a fine adjustment function of the hydraulic grease is proposed.

Technical solution

In order to solve the technical problem proposed by the present invention, the technical solution adopted is:

A high-precision hydraulic damping hinge with a fine adjustment function of hydraulic grease, including a cylinder, a rotating shaft inserted into the cylinder, and a cylinder head disposed on the cylinder; the connecting end of the rotating shaft exposes the cylinder through the through hole in the cylinder head, and the shaft and the cylinder cover are connected The holes are sealed by a sealing ring; the inner wall of the oil cylinder has no partition plate for separating the cylinder cavity of the oil cylinder into two chambers of the oil storage chamber and the oil return chamber, and the rotating shaft is respectively disposed on two Two blades for driving grease between the oil storage chamber and the oil return chamber, and two shafts on the shaft wall of the rotating shaft respectively correspond to the two blades, and penetrate the oil storage chamber and the oil return chamber. The arc-shaped oil sump has a cross-sectional area of the arc-shaped oil sump gradually decreasing from the beginning of the closing of the door to the end of the closing door; the cylinder wall of the cylinder is provided with a fine-tuning oil passage communicating with the oil storage chamber, and the fine-tuning oil passage is arranged in the fine-tuning oil passage There is a grease fine adjustment rod, a screw connection between the end of the grease fine adjustment rod and the fine adjustment oil passage, and an adjustment tool connection groove is arranged on the tail end of the grease fine adjustment rod.

A sealing screw is arranged at the outer end opening of the fine adjustment oil passage.

A sealing sleeve is coupled to the blade.

The fine adjustment oil passage is disposed in a bottom wall of the cylinder.

Beneficial effect

The utility model has the beneficial effects that: a fine adjustment oil passage channel communicating with the oil storage chamber is added in the cylinder wall of the oil cylinder, and a fine oil adjustment rod with a thread adjustment setting is arranged in the fine adjustment oil quantity passage, and when the torque is too large, the passage is passed. The thread adjustment of the grease fine adjustment rod allows the grease fine adjustment rod to exit a certain distance outward, thus reducing the amount of hydraulic grease in the oil storage chamber, and the result is that the torque of the hinge is reduced; when the torque is small, the grease is passed. The fine adjustment rod is threaded to allow the grease fine adjustment rod to advance a certain distance inward, which increases the amount of hydraulic grease in the oil reservoir. The result is an increase in the torque of the hinge, thereby overcoming the process of hydraulic damping hinge production. The amount of internal hydraulic grease is not in control, and the volume of the inner cavity of the casing is unstable, resulting in technical problems of unstable product performance.

DRAWINGS

Figure 1 is a schematic perspective view of the utility model;

Figure 2 is a schematic exploded view of the utility model;

3 is a schematic view showing another angle exploded structure of the present invention;

Figure 4 is a top plan view of the utility model;

Figure 5 is a schematic cross-sectional view of the A-A of Figure 4 of the present invention;

Figure 6 is a schematic cross-sectional view of the B-B of Figure 4 of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

The structure of the present invention will be further described below in conjunction with the drawings and preferred embodiments of the present invention.

Referring to FIG. 1 to FIG. 6 , the present invention has a high-precision hydraulic damping hinge with a fine adjustment function of hydraulic oil and fat, comprising a cylinder 1 , a rotating shaft 2 inserted into the oil cylinder 1 , a cylinder head 3 disposed on the oil cylinder 1 , and a rotating shaft 2 The connecting end 21 exposes the cylinder 1 through the through hole 31 in the cylinder head 3, and the rotating shaft 2 and the through hole 31 in the cylinder head 3 are sealed by a sealing ring; the inner wall of the cylinder 1 is not used to separate the cylinder chamber of the cylinder into a partition plate 13 of the two chambers of the oil storage chamber 11 and the oil return chamber 12, and the rotating shaft 2 is provided with two bodies respectively disposed in the two chambers for driving grease to flow between the oil storage chamber 11 and the oil return chamber 12 In order to enhance the sealing between the blade 22 and the inner wall of the cylinder 1, the blade 22 is combined with the sealing sleeve 221 on the blade 22.

The shaft wall of the rotating shaft 2 is provided with two sets of arc-shaped oil passages 23 respectively corresponding to the two blades 22 and penetrating the oil storage chamber 11 and the oil return chamber 12. The cross-sectional area of the curved oil passage 23 is from the beginning of the closing of the gate The area to the end of the door is gradually reduced. For example, when the utility model applies the product of the washing machine, the rotating shaft 2 is mounted on the main body of the washing machine through the fixed mounting seat, and the oil cylinder 1 is fixedly mounted with the cover above the main body of the washing machine, and when the cover in the upright state needs to be closed, the pushing machine is pushed. After the cover, the thrust of the random cover of the cylinder 1 or the rotation of the cover itself is rotated relative to the rotating shaft 2; under the action of the two blades 22, the grease in the initial stage of closing the door can be relatively large in the oil reservoir 11 After a set of curved oil passages 23 enters the oil return chamber 12, the grease originally in the oil return chamber 12 can enter the oil storage chamber 11 through a relatively small flow through the other curved oil passages 23, closing the door. The closing speed of the initial stage is relatively fast; since the sectional area of the curved oil passage 23 gradually decreases from the initial stage of closing the door to the end of the closing door, that is, from the beginning of the closing of the door to the closing of the shaft 2 between the closing shaft 2 and the two dividing plates 13 The gap gradually decreases. When the end of the closing is reached, the cross-sectional area of the two sets of curved oil passages 23 is small or zero, and the closing speed is relatively slow, achieving a slow closing, reducing the impact force and reducing the cover closing. The noise of the time enhances the product experience.

The cylinder wall of the cylinder 1 is provided with a fine adjustment oil passage 14 communicating with the oil storage chamber 11, and a fine adjustment lever 4 is disposed in the fine adjustment oil passage 14, and the end section of the grease fine adjustment rod 4 and the fine adjustment oil passage Between the 14 threaded connection, the end of the grease fine adjustment rod 4 is provided with an adjustment tool connection groove 41.

Due to the difficulty in controlling the amount of hydraulic grease inside the cylinder 1 and the unstable internal cavity volume of the cylinder 1 during the production of the hydraulic damping hinge, the torque distortion of the hydraulic damping hinge of the factory is relatively large, which cannot be controlled according to the torque precision. The utility model can realize the precise adjustment of the grease of the oil cylinder 1 by advancing or withdrawing the adjustment of the grease fine adjustment rod 4, and finally realizes the precise adjustment of the torsional moment of the utility model, and overcomes the technical problem that the product performance is unstable.

In order to protect the fine adjustment oil passage 14, the outer end opening of the fine adjustment oil passage 14 is provided with a sealing screw 5, and after the grease fine adjustment rod 4 is adjusted, the outer end opening of the fine adjustment oil passage 14 is fixed and fixed. Seal the screw 5. The grease fine adjustment lever 4 adjustment tool connecting groove 41 may be a slot, an allen wrench connecting groove, or the like. The fine adjustment oil passage 14 is preferably disposed in the bottom wall of the cylinder 1, and the bottom wall of the cylinder 1 may have a long design space.

Claims

A high-precision hydraulic damping hinge with a fine adjustment function of hydraulic grease, including a cylinder, a rotating shaft inserted into the cylinder, and a cylinder head disposed on the cylinder; the connecting end of the rotating shaft exposes the cylinder through the through hole in the cylinder head, and the shaft and the cylinder cover are connected The holes are sealed by a sealing ring; the inner wall of the oil cylinder has no partition plate for separating the cylinder cavity of the oil cylinder into two chambers of the oil storage chamber and the oil return chamber, and the rotating shaft is respectively disposed on two Two blades for driving grease between the oil storage chamber and the oil return chamber, and two shafts on the shaft wall of the rotating shaft respectively correspond to the two blades, and penetrate the oil storage chamber and the oil return chamber The arc-shaped oil sump has a cross-sectional area of the arc-shaped oil sump gradually decreasing from the beginning of the closing of the door to the end of the closing door; the cylinder wall of the cylinder is provided with a fine-tuning oil passage communicating with the oil storage chamber, and the oil passage is fine-tuned. There is a grease fine adjustment rod inside, a screw connection between the end of the grease fine adjustment rod and the fine adjustment oil passage, and an adjustment tool connection groove is arranged on the tail end of the grease fine adjustment rod.
A high-precision hydraulic damping hinge with a fine adjustment function of a hydraulic grease amount according to claim 1, wherein a sealing screw is provided at an opening of the outer end of the fine adjustment oil passage.
The high-precision hydraulic damping hinge with a fine adjustment function of the hydraulic grease amount according to claim 1, wherein the blade is combined with a sealing sleeve.
A high-precision hydraulic damping hinge with a fine adjustment function of a hydraulic grease amount according to claim 1, wherein said fine adjustment oil passage is provided in a bottom wall of the oil cylinder.