阅读说明：本技术 一种液压缓降铰链 (Hydraulic slow-descending hinge ) 是由 黄康 朱纪成 周钊 祝慧 王香廷 郁焕敬 于 2019-08-27 设计创作，主要内容包括：本发明公开了一种液压缓降铰链,包括：铰链机构,包括支撑件以及转动安装在所述支撑件上的转轴,所述转轴上固定有拨块；液压阻尼机构,内部装满可流动的液体,包括过液管、可伸缩的第一储液囊以及可伸缩的第二储液囊,所述过液管的一端与所述第一储液囊连通,所述过液管的另一端与所述第二储液囊连通,所述过液管上安装有单向阀,所述单向阀的阀芯上开有缓释孔；在所述转轴沿着顺时针方向和逆时针方向转动的过程中,所述拨块可分别压缩所述第一储液囊和所述第二储液囊。本发明以储液囊承载液体为铰链提供缓降阻力,通过单向阀控制,可以提供长期有效、单方向的缓慢较匀速的缓降功能。(The invention discloses a hydraulic slow-descending hinge, which comprises: the hinge mechanism comprises a support and a rotating shaft which is rotatably arranged on the support, and a shifting block is fixed on the rotating shaft; the hydraulic damping mechanism is filled with flowable liquid and comprises a liquid passing pipe, a telescopic first liquid storage bag and a telescopic second liquid storage bag, wherein one end of the liquid passing pipe is communicated with the first liquid storage bag, the other end of the liquid passing pipe is communicated with the second liquid storage bag, a one-way valve is mounted on the liquid passing pipe, and a valve core of the one-way valve is provided with a slow release hole; in the process that the rotating shaft rotates along the clockwise direction and the anticlockwise direction, the poking block can respectively compress the first liquid storage bag and the second liquid storage bag. The invention uses the liquid carried by the liquid storage bag to provide slow descending resistance for the hinge, and can provide a long-term effective slow descending function with single direction and relatively constant speed through the control of the one-way valve.)

1. A hydraulic slow-falling hinge is characterized by comprising:

The hinge mechanism comprises a support and a rotating shaft which is rotatably arranged on the support, and a shifting block is fixed on the rotating shaft;

The hydraulic damping mechanism is filled with flowable liquid and comprises a liquid passing pipe, a telescopic first liquid storage bag and a telescopic second liquid storage bag, wherein one end of the liquid passing pipe is communicated with the first liquid storage bag, the other end of the liquid passing pipe is communicated with the second liquid storage bag, a one-way valve is installed on the liquid passing pipe, and a valve core of the one-way valve is provided with a slow release hole for the liquid to pass through the one-way valve;

The first liquid storage bag and the second liquid storage bag are respectively arranged on two sides of the shifting block, and the shifting block can respectively compress the first liquid storage bag and the second liquid storage bag in the process that the rotating shaft rotates along the clockwise direction and the anticlockwise direction.

2. The hydraulic descent control hinge as claimed in claim 1, wherein the supporting member comprises a housing, the hydraulic damping mechanism and the shifting block are both disposed in the housing, the liquid passing pipe is fixed to an inner wall of the housing, and at least one end of the rotating shaft penetrates through the housing.

3. The hydraulic descent control hinge according to claim 2, wherein the housing has an oblate cylindrical shape, the rotating shaft is coaxially arranged with the housing, the liquid passing pipe, the first reservoir and the second reservoir form an annular structure with a notch, and the liquid passing pipe, the first reservoir and the second reservoir are arranged around the rotating shaft, and the shifting block is located in the notch.

4. The hydraulic descent hinge as claimed in claim 2 or 3, wherein the housing is formed by two discs joined with their open sides facing each other.

5. The hydraulic descent hinge of claim 2 or 3, wherein the support further comprises a mount to secure an outer surface of the housing.

6. The hydraulic descent hinge as claimed in claim 1, 2 or 3, wherein both ends of the liquid passing pipe are designed to be inclined.

7. The hydraulic descent hinge according to claim 1, 2 or 3, wherein the first reservoir and the second reservoir are each a plastic bellows having one end closed and the other end communicating with the corresponding end of the liquid passing pipe.

8. the hydraulic descent control hinge according to claim 1, 2 or 3, wherein the check valve comprises an annular partition plate fixed to the inner wall of the liquid passing pipe at the periphery thereof, and a baffle plate hinged to any one side surface of the annular partition plate, the baffle plate can rotate to be attached to the annular partition plate to close the pore passage of the annular partition plate, the baffle plate can also rotate to be away from the annular partition plate to open the pore passage of the annular partition plate, and the slow release hole is formed in the position of the baffle plate corresponding to the pore passage of the annular partition plate.

9. The hydraulic descent control hinge according to claim 8, wherein the baffle is hinged to either side of the annular partition by the following structure: the two support shafts are respectively fixed on the left side and the right side of the upper end of the baffle, two hanging rings are fixed on the upper end of any side face of the annular partition plate, and the two support shafts are respectively movably arranged in the two hanging rings in a penetrating mode.

10. A hydraulic descent hinge according to claim 1, 2 or 3, wherein the liquid is oil.

Technical Field

The invention relates to the field of parts for hinging, in particular to a hydraulic slow-falling hinge.

Background

in many scenes in production and life, hinges such as a flip cover and a hatch door need to be used, and in some occasions, the falling speed of the flip cover and the hatch door under the action of gravity is uniform and slow, the transition is more gradual, and certain devices need to be utilized to achieve the desired effect, or the structure of the hinge is optimized.

The schematic cross-sectional structure of an existing descent control hinge is shown in fig. 1 of the specification, wherein 01 is a shaft sleeve, 02 is a leaf spring, 03 is a friction plate, and 04 is a rotating shaft. The rotating shaft 04 is fixed on an object needing to be turned, such as the turning cover and the hatch door, and the like, when the turning cover falls down, the rotating shaft 4 is driven to rotate, and the shaft sleeve 1 is fixed on the object needing to be covered by the turning cover, the hatch door and the like. Under the action of the leaf spring 02, the friction plate 03 is pressed on the rotating shaft 04 and is subjected to resistance in the rotating process, so that the flip cover and the like slowly descend, and the descending speed is relatively uniform.

The slow descending hinge utilizes the elasticity of the sheet spring to enable the friction plate to extrude the rotating shaft so as to generate resistance, thereby realizing the slow rotation of the rotating shaft and further realizing the slow descending of the turning cover and the like which are connected on the rotating shaft and need to be turned. It has the following disadvantages:

1) there is damping of the spring. No matter what spring, there is elasticity attenuation certainly, at this moment, the pressure is reduced, the resistance of the friction plate to the rotating shaft is reduced, the rotating speed of the rotating shaft is difficult to keep uniform and consistent for a long time, namely the falling speed of the flip cover and the like is gradually increased, and the slow falling effect cannot be kept;

2) There is wear on the friction plates. The friction plate and the rotating shaft are rubbed for a long time, the resistance is gradually reduced along with the continuous increase of the abrasion, and the slow descending effect of the flip cover and the like is difficult to maintain;

3) The elasticity of the spring is not easy to control. The consistency of the elasticity of the springs is not easy to guarantee due to the production of the springs, so that the resistance of the friction plates to the rotating shaft is inconsistent, and the slow descending effects of the flip cover and the like are uneven;

4) The falling speed of the flip or the like is not uniform, and acceleration still exists. The slow-falling hinge is realized by applying reverse resistance to the rotating shaft through the friction plate, and the resistance is always kept at a fixed value in the rotating process, so that the flip cover and the like still have an accelerating process after the gravity applied to the flip cover and the like in the falling process is offset by a part of fixed values. That is, the slow descent hinge has no damping effect;

5) The rotation shaft can be subjected to resistance in both directions of rotation, additional force is brought to the reverse rotation of the flip cover and the like, and the operation is inconvenient.

Disclosure of Invention

the invention mainly aims to provide a hydraulic slow-descending hinge which can provide a long-term effective slow-descending function with one direction and a slow speed.

In order to achieve the above object, the present invention provides a hydraulic slow-falling hinge, including:

The hinge mechanism comprises a support and a rotating shaft which is rotatably arranged on the support, and a shifting block is fixed on the rotating shaft;

The hydraulic damping mechanism is filled with flowable liquid and comprises a liquid passing pipe, a telescopic first liquid storage bag and a telescopic second liquid storage bag, wherein one end of the liquid passing pipe is communicated with the first liquid storage bag, the other end of the liquid passing pipe is communicated with the second liquid storage bag, a one-way valve is installed on the liquid passing pipe, and a valve core of the one-way valve is provided with a slow release hole for the liquid to pass through the one-way valve;

The first liquid storage bag and the second liquid storage bag are respectively arranged on two sides of the shifting block, and the shifting block can respectively compress the first liquid storage bag and the second liquid storage bag in the process that the rotating shaft rotates along the clockwise direction and the anticlockwise direction.

Optionally, the support member includes a housing, the hydraulic damping mechanism and the shifting block are both located in the housing, the liquid passing pipe is fixed on an inner wall of the housing, and at least one end of the rotating shaft penetrates out of the housing.

Optionally, the casing is oblate cylindrical, the pivot with the casing coaxial arrangement, cross the liquid pipe first reservoir with the whole that the second reservoir constitutes is the loop configuration who has the breach and encloses and establishes around the pivot, the shifting block is located in the breach.

Optionally, the housing is formed by two discs spliced with their open sides facing each other.

Optionally, the support further comprises a mount to secure an outer surface of the housing.

Optionally, both ends of the liquid passing pipe are designed to be inclined openings.

optionally, the first reservoir and the second reservoir are both plastic corrugated pipes with one closed ends and the other ends communicated with the corresponding ends of the liquid passing pipes.

Optionally, the check valve includes that self outer wall all around is fixed annular baffle on the inner wall all around of liquid pipe and articulate the baffle of the arbitrary side of annular baffle, the baffle can rotate to the laminating annular baffle and seal the pore of annular baffle, the baffle also can rotate to keeping away from annular baffle and opening the pore of annular baffle, the slowly-releasing hole is seted up the baffle correspond to the position department in pore of annular baffle.

Optionally, the baffle is hinged on any side of the annular partition plate by adopting the following structure: the two support shafts are respectively fixed on the left side and the right side of the upper end of the baffle, two hanging rings are fixed on the upper end of any side face of the annular partition plate, and the two support shafts are respectively movably arranged in the two hanging rings in a penetrating mode.

Optionally, the liquid is oil.

the working principle of the invention is detailed in the detailed implementation mode part, and the beneficial effects are as follows:

1) The liquid storage bag is used for bearing liquid to provide slow descending resistance for the hinge, and the liquid is discharged through the slow release holes to gradually release the displacement space, and the flow velocity of the liquid passing through the slow release holes is uniform, so that the slow descending device can realize slow and uniform slow descending, can be used for realizing the slow descending function of rotating parts such as a turnover cover or a cabin door and the like, and has a very good effect;

2) The invention can realize the slow descending function in one direction through the one-way valve, basically has no influence on the rotation in the other direction, and does not generate obvious resistance;

3) the invention provides slow descending resistance by liquid, and the liquid does not have the problem of attenuation, so that the slow descending function can be effectively realized for a long time, and the decline of the slow descending function can not occur.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

fig. 1 is a schematic cross-sectional view of a conventional descent control hinge.

Fig. 2 is a schematic perspective view of a hydraulic slow-descent hinge according to an embodiment of the present invention.

Fig. 3 is a schematic perspective view of the hydraulic descent control hinge shown in fig. 2 separating a disk.

Fig. 4 is a sectional view (a longitudinal section along the liquid passing pipe) of the hydraulic descent control hinge shown in fig. 2.

Fig. 5 is a schematic view of the installation structure of the check valve in the liquid passing pipe in the hydraulic descent control hinge shown in fig. 2.

Fig. 6 is an exploded view of the hinge mechanism of the hydraulic descent control hinge shown in fig. 2.

The reference numbers illustrate:

Reference numerals	Name (R)	Reference numerals	Name (R)
				01	shaft sleeve	12	Rotating shaft
02	Leaf spring	13	Shifting block
				03	Friction plate	21	Liquid passing pipe
04	Rotating shaft	22	The first liquid storage bag
				11	Support piece	23	Second reservoir
111	shell body	241	Annular partition plate
				1111	Disc with a circular groove	242	Baffle plate
1112	shaft hole	243	supporting shaft
				112	Mounting seat	244	hanging ring
1121	Mounting hole	245	sustained release hole

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

in addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

referring to fig. 2 and 3, the hydraulic slow-descending hinge of the present invention includes:

The hinge mechanism comprises a support part 11 and a rotating shaft 12 rotatably arranged on the support part 11, wherein a shifting block 13 is fixed on the rotating shaft 12;

The hydraulic damping mechanism is filled with flowable liquid and comprises a liquid passing pipe 21, a telescopic first liquid storage bag 22 and a telescopic second liquid storage bag 23, one end of the liquid passing pipe 21 is communicated with the first liquid storage bag 22, the other end of the liquid passing pipe 21 is communicated with the second liquid storage bag 23, a sealed oil storage space is formed by the liquid passing pipe 21 and the telescopic second liquid storage bag, a one-way valve is installed on the liquid passing pipe 21, and a valve core of the one-way valve is provided with a slow release hole for the liquid to pass through the one-way valve;

The first reservoir 22 and the second reservoir 23 are respectively disposed at two sides of the dial 13, and the dial 13 can respectively compress the first reservoir 22 and the second reservoir 23 when the shaft 12 rotates in the clockwise direction and the counterclockwise direction.

A spool is a valve component of a valve that performs basic functions, flow control, etc. by virtue of its movement. In the present invention, since the slow release hole is formed in the valve body of the check valve, even when the check valve is in the closed state, the liquid can pass through the check valve through the slow release hole. The installation direction of the one-way valve is determined according to the installation direction of an object needing to realize overturning in practical application.

Preferably, the check valve of the present invention has a simple structure and is easy to implement, please refer to fig. 4 and fig. 5, including an annular partition 241 whose peripheral outer wall is fixed on the peripheral inner wall of the liquid flowing pipe 21, and a baffle 242 hinged on any one side of the annular partition 241, where the baffle 242 can rotate to fit the annular partition 241 to close the pore passage of the annular partition 241, the baffle 242 can also rotate to be away from the annular partition 241 to open the pore passage of the annular partition 241, the baffle 242 is a valve core of the check valve, and the slow release hole 245 is opened at a position of the baffle 242 corresponding to the pore passage of the annular partition 241. The check valve is very simple in structure, the pressure of the liquid of the baffle close to the installation side of the baffle can be attached to the annular partition plate to seal the pore of the annular partition plate, the check valve is closed, the pressure of the liquid of the baffle back to the installation side of the baffle back can be pushed away to keep away from the annular partition plate to open the pore of the annular partition plate, the check valve is opened, and the check valve is quick to open and close and good in practicability.

The working principle of the present invention will be described in detail below by taking the installation situation that the check valve designed as above is installed on one side surface of the annular partition plate close to the first reservoir as an example, and referring to fig. 3 to 5, the dashed part in fig. 5 is an illustration that the baffle is pushed away:

the supporting piece is arranged on a device needing to be covered by a flip cover and the like, the rotating shaft is connected with components needing to be turned, such as the flip cover and the like, and the rotating shaft is driven to rotate when the components, such as the flip cover and the like, fall;

When the rotating shaft rotates anticlockwise, the shifting block extrudes the first liquid storage bag on the left side, so that the liquid pressure in the first liquid storage bag is increased, the baffle is attached to the annular partition plate due to the impact of liquid, the one-way valve is closed, at the moment, the liquid can pass through the liquid passing pipe and can only pass through the slow release hole in the baffle to flow to the second liquid storage bag on the right side, the second liquid storage bag contains the entering liquid through extension, the slow release hole limits the flow rate of the liquid, so that the first liquid storage bag can only slowly discharge the liquid and is slowly compressed, the rotating shaft is subjected to resistance action, the rotating speed of the rotating shaft can be limited, and the falling speed of components such as a turnover cover connected with the rotating shaft can;

when the pivot is clockwise rotatory, the second reservoir on shifting block extrusion right side, the inside liquid pressure of second reservoir increases like this, the baffle is pushed open under the impact of liquid, the check valve is opened, liquid can pass through the liquid pipe and pass and flow to left first reservoir from the pore of annular baffle, first reservoir holds the liquid of entering through the extension, because the pore of annular baffle is great, the liquid velocity of flow is very fast, therefore, the pivot just can not receive obvious resistance effect, thereby make the lifting of parts such as flip that link to each other with the pivot not influenced.

obviously, the size of the pore passage of the annular partition plate is large, the size of the slow release hole is small, and the size of the pore passage of the annular partition plate and the size of the slow release hole can be designed according to actual needs, so that the flow rate can be controlled to meet the requirements of falling speed of components such as a flip cover and the like, and the lifting is not influenced.

Of course, the above case is the one-way valve designed by the present invention, including but not limited to the one-way valve with the existing structure can be used in the present invention, as long as the slow release hole can be opened on the valve core, and when the one-way valve is closed, the liquid can pass through the one-way valve through the slow release hole.

Preferably, referring to fig. 4 and 5, the baffle 242 is hinged at its upper end to the upper end of the annular partition 241. Therefore, the baffle plate can hang down to seal the pore channel of the annular partition plate by the self gravity of the baffle plate, and the closing effect is more reliable due to the pressure of liquid.

More preferably, referring to fig. 4 and 5, the baffle 242 is hinged to either side of the annular partition 241 by the following structure: the two support shafts 243 are respectively fixed at the left and right sides of the upper end of the baffle 242, the upper end of any one side surface of the annular partition 241 is fixed with two hanging rings 244, and the two support shafts 243 are respectively movably arranged in the two hanging rings 244 in a penetrating manner. The hinge mode has the advantages of simple structure, easy implementation, support shaft capable of rotating around the hanging ring, baffle capable of being easily hung down and pushed away, quick one-way valve switch and reliable effect.

In an embodiment, referring to fig. 2 and 3, the supporting member 11 includes a housing 111, the hydraulic damping mechanism and the shifting block 13 are both located in the housing 111, the liquid flowing pipe 21 is fixed on an inner wall of the housing 111, and at least one end of the rotating shaft 12 penetrates through the housing 111. The design is like this, and the casing can protect inside hydraulic damping mechanism as the protection piece, forms hydraulic damping mechanism's the spacing space of installation simultaneously and can prevent that first, two reservoir from producing unnecessary deformation and aversion, and the tip of pivot is stretched out and is connected for the object that needs to realize the upset such as with flip.

in an embodiment, referring to fig. 2 to 4, the housing 111 is in an oblate cylindrical shape, the rotating shaft 12 and the housing 111 are coaxially arranged, the liquid flowing pipe 21, the first liquid storage bag 22 and the second liquid storage bag 23 are integrally formed in an annular structure with a notch and are enclosed around the rotating shaft 12, and the shifting block 13 is located in the notch. By the design, the whole body formed by the liquid passing pipe, the first liquid storage bag and the second liquid storage bag is higher in fitting degree with the shell, unnecessary deformation and displacement are not easy to generate, the installation state as shown in the drawing can be stably maintained for a long time, and slow descent failure is prevented.

In one embodiment, referring to fig. 3, the first reservoir 22 and the second reservoir 23 are both plastic corrugated tubes with one end closed and the other end communicated with the corresponding end of the liquid passing tube 21. The plastic corrugated pipe has good telescopic performance, can better match with the flow of liquid, can only stretch out and draw back along the axial direction, can always correspond to clockwise and anticlockwise rotation of the shifting block, is not easy to generate unnecessary deformation, and is very stable and reliable.

In an embodiment, referring to fig. 4 and 5, both ends of the liquid flowing pipe 21 are designed to be inclined. By the design, when the annular structure with the notches is formed by the first liquid storage bag and the second liquid storage bag, two ends of the annular structure can be smoothly connected with the first liquid storage bag and the second liquid storage bag in a transition mode, and the influence on the flowing of liquid is avoided.

In one embodiment, referring to fig. 2, 3 and 6, the housing 111 is formed by two discs 1111 that are assembled with their open sides facing each other. The design like this, it is rational in infrastructure, can install hydraulic damping mechanism earlier in one of them disc, then cover another disc, convenient location and installation.

Preferably, referring to fig. 2 and 6, the two disks 1111 are provided with shaft holes 1112 at the centers, and two ends of the rotating shaft 12 respectively movably pass through the shaft holes 1112 on the two disks 1111, so as to realize the rotating shaft being rotatably mounted on the housing 11.

In one embodiment, referring to fig. 2 and 6, the supporting member 11 further includes a mounting seat 112 for fixing an outer surface of the housing 111. When the support is used, the mounting seat is fixed on an object needing to be covered by a turnover cover and the like, and the support can be mounted. Preferably, the mounting seat 112 has more than two mounting holes 1121 for bolts to pass through, so as to fix the mounting seat by bolts.

Preferably, the mounting base 112 is a triangular plate-shaped member, the three top corners are respectively provided with a mounting hole, and the middle is provided with a large round hole for avoiding the rotating shaft, as shown in fig. 6. The material of mount pad can be the same with the casing, also can be different, and the same time can weld, can bond or install firmly with other fasteners not simultaneously.

In one embodiment, the liquid is an oil, including but not limited to silicone oil or engine oil. The oil liquid has small corrosivity, can ensure the service life of a product, and has light weight and better practicability.