CN209839038U - Air spring linkage control mechanism - Google Patents
Air spring linkage control mechanism Download PDFInfo
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- CN209839038U CN209839038U CN201920600895.0U CN201920600895U CN209839038U CN 209839038 U CN209839038 U CN 209839038U CN 201920600895 U CN201920600895 U CN 201920600895U CN 209839038 U CN209839038 U CN 209839038U
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- support frame
- support
- gas spring
- air spring
- control mechanism
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Abstract
The utility model discloses an air spring coordinated control mechanism belongs to controllable air spring technical field, set up supporting pedestal, support frame and the controllable air spring in lifter plate holding surface both sides including lifter plate, back shaft and symmetry, supporting pedestal, support frame are provided with the shaft hole that corresponds with the back shaft, and the support frame is the U-shaped structure, and the bottom is provided with the installation interface of controllable air spring, and the tailpiece of the piston rod portion of controllable air spring screws up to fix in the bottom of support frame, and the pole core of piston rod stretches into in the support frame, the installation has the eccentric drive wheel in support shaft hole between the side plate of support frame, the back shaft with arrange the eccentric drive wheel looks coupling in supporting pedestal, support frame and the support frame of lifter plate holding surface both sides. The utility model discloses, utilize the back shaft directly to realize coordinated control to controllable air spring, need not add the auxiliary operation structure during installation use to the handle is installed in a flexible way, has reduced the interference problem that appears among the practical process.
Description
Technical Field
The utility model relates to a controllable air spring technical field specifically is an air spring coordinated control mechanism.
Background
The gas spring is widely applied to a plurality of fields of automobiles, furniture, medical equipment and the like, for example, an uncontrollable gas spring is adopted for supporting a rear box cover of an automobile, and the lifting height of a transfer vehicle, a diagnosis and treatment bed, an operation bed and the like of the medical equipment needs to be adjusted (as shown in figure 6). The height adjustment is realized by adopting a controllable gas spring, the top end of the rod of the controllable gas spring is provided with a rod core, the gas spring can move within a certain stroke range in a pressing state, and can stop at any position in the stroke after being released, and the controllable gas spring has a large locking force. Thereby realizing the angle adjustment of the back plates of products such as a transfer trolley, a diagnosis and treatment bed, an operation bed and the like. In the prior art, the control method and the structure of the single gas spring are simpler and more convenient, such as the structure of a Bowden wire support frame system (shown in figure 1) connected by a cable or a release system with a lever (shown in figure 2) and the like.
A single air spring is used for supporting the lifting plate, the lifting plate is generally arranged in the middle of the back surface of the back plate, although the lifting plate is easy to operate, the stability is not high, and the chest X-ray film shooting of a patient is particularly influenced. Therefore, in order to improve the support stability of the back plate or to facilitate the operation of taking X-ray pictures, it is often necessary to support the back plate on both sides with 2 gas springs. The existing control method for realizing linkage of two gas springs is mostly realized by adopting a mode of additionally arranging a linkage pressing rod or a push-pull rod as shown in figures 2 and 3, however, the additional linkage control can interfere with other structures or cannot be operated under most conditions, so that the problem of product design is brought. The company HAHN-GASFEDERN in germany has a linkage control structure of a gas spring (as shown in fig. 4), and the linkage control is realized by a method of adding a wire to a micro hydraulic device, but the method is relatively complex to install and has very high price, so the method is less in application.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air spring coordinated control mechanism, simple to operate interferes few to other structures during the installation, the coordinated control of the controllable air spring of low in manufacturing cost and easy to operate to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a gas spring linkage control mechanism comprises a lifting plate, a support shaft, support bases symmetrically arranged on two sides of a supporting surface of the lifting plate, a support frame and a controllable gas spring, the supporting base and the supporting frame are provided with shaft holes corresponding to the supporting shaft, the supporting frame is in a U-shaped structure, the bottom of the supporting frame is provided with an installation interface of a controllable gas spring, the end part of a piston rod of the controllable gas spring is screwed and fixed at the bottom of the supporting frame, a rod core of the piston rod extends into the supporting frame, an eccentric driving wheel with a supporting shaft hole is arranged between the side plates of the supporting frame, the distance between the working stroke curved surface of the eccentric driving wheel and the center of the supporting shaft hole is gradually increased, the end part of the rod core of the controllable gas spring in a release state is close to the curved surface of the eccentric driving wheel which is closer to the center of the supporting shaft hole, the supporting shaft is in shaft connection with a supporting base arranged on two sides of the supporting surface of the lifting plate, a supporting frame and an eccentric driving wheel in the supporting frame.
As a further aspect of the present invention: the eccentric driving wheels on the two sides are fastened with the supporting shaft at the same angle in a fixing pin, welding or bonding mode.
As a further aspect of the present invention: the eccentric driving device also comprises control handles which are arranged at two ends or one side or the opposite middle part of the supporting shaft or are directly arranged on the eccentric driving wheel.
As a further aspect of the present invention: the installation space of the controllable gas spring and the components of the supporting surface of the lifting plate is not less than the width of the largest-size X-ray film.
As a further aspect of the present invention: and a supporting bearing or a lubricating shaft sleeve is arranged on the supporting base.
As a further aspect of the present invention: the eccentric driving wheels on the two sides are assembled with the supporting shaft at the same angle through fixing pin holes, and fixing pins are installed in the fixing pin holes.
As a further aspect of the present invention: the bottom end of the controllable gas spring is connected with a gas spring supporting arm.
As a further aspect of the present invention: and one end of the inner side of the support frame is provided with a limiting part for limiting the rotation of the eccentric driving wheel.
As a further aspect of the present invention: and a central control handle is arranged in the middle of the supporting shaft.
Compared with the prior art, the beneficial effects of the utility model are that: the controllable gas spring is directly subjected to linkage control by using the support shaft, an auxiliary operation structure is not required to be additionally arranged during installation and use, the handle is flexibly arranged, and the interference problem in the use process is reduced; simple structure, low in manufacturing cost, convenient operation provide very practical technical solution for the manufacturing and designing of multiple trade, especially medical treatment transport shallow, operation table, gynaecology diagnose bed etc..
Drawings
Fig. 1 is a schematic view of a releasing structure of a controllable gas spring bourdon wire in the prior art.
FIG. 2 is a schematic diagram of a prior art lever release arrangement for a controllable gas spring.
Fig. 3 is a schematic view of a linkage control structure of the lever release structure shown in fig. 2.
FIG. 4 is a schematic view of a linkage control structure product of HAHN-GASFEDERN, Germany.
Fig. 5 is a side view of a portable transfer cart with a controllable gas spring installed.
FIG. 6 is a schematic bottom view of the lifter plate support surface mounting the coordinated control structure.
Fig. 7 is an enlarged view of a portion of the structure at a in fig. 6.
FIG. 8 is a schematic sectional view of B-B in FIG. 7.
Fig. 9 is a cross-sectional view of the eccentric driving wheel with the entity outside the curve stroke cut away.
Fig. 10 is a schematic view of the three-dimensional assembly structure of the present invention.
Fig. 11 is a schematic view of another embodiment of the three-dimensional assembly structure of the present invention.
In the figure: 1-lifting plate, 2-supporting base, 21-supporting bearing, 3-control handle, 31-central control handle, 4-supporting frame, 5-supporting shaft, 6-fixing pin, 7-eccentric driving wheel, 8-limiting piece, 9-rod core, 10-piston rod, 11-controllable gas spring and 12-gas spring supporting arm.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
Referring to fig. 4 ~ 10, in the embodiment of the utility model, an air spring coordinated control mechanism, including lifter plate 1, back shaft 5 and symmetrically set up supporting pedestal 2, support frame 4 and controllable air spring 11 in lifter plate 1 holding surface both sides, supporting pedestal 2 fixes at the lifter plate 1 back, restriction eccentric drive wheel 7 pivoted locating part 8 is installed to 4 inboard one ends of support frame, still including control handle 3, control handle 3 installs at back shaft 5 both ends or unilateral or relative middle part or directly sets up on eccentric drive wheel 7.
The mounting space of the controllable gas spring 11 and the components of the supporting surface of the lifting plate 1 is not smaller than the width of the largest X-ray film, in this embodiment, the width of the lifting plate 1 is 500-510 mm, the mounting space of the controllable gas spring 11 is 390-410 mm, preferably, the width of the lifting plate 1 is 510mm, the mounting space of the controllable gas spring 11 is 390mm, and the size not only leaves enough mounting space and enough operating space, but also is beneficial to a patient to shoot the X-ray film.
The bottom end of the controllable gas spring 11 is connected with a gas spring supporting arm 12, the supporting base 2 is provided with a supporting bearing 21 or a lubricating shaft sleeve to reduce rotation resistance and contact friction force, and labor is saved in operation, the supporting base 2 and the supporting frame 4 are provided with shaft holes corresponding to the supporting shaft 5, the supporting frame 4 is of a U-shaped structure, the bottom of the supporting frame is provided with a mounting interface of the controllable gas spring 11, the end part of a piston rod 10 of the controllable gas spring 11 is screwed and fixed at the bottom of the supporting frame 4, a rod core 9 of the piston rod 10 extends into the supporting frame 4, an eccentric driving wheel 7 with a supporting shaft hole is mounted between side plates of the supporting frame 4, the working stroke curved surface of the eccentric driving wheel 7 is gradually increased from the center of the supporting shaft hole, the end part of the rod core 9 of the controllable gas spring 11 in a release state is close to the curved surface of the eccentric driving wheel 7 at a short distance from, the downthehole fixed pin 6 of installing of fixed pin, both sides eccentric drive wheel 7 is fastened with fixed pin 6, welding or bonding mode with back shaft 5 on the same angle mutually, back shaft 5 with arrange the eccentric drive wheel 7 looks coupling in support base 2, support frame 4, and the support frame 4 of 1 holding surface both sides of lifter plate, press control handle 3 and make eccentric drive wheel 7 pivoted in, the pole core 9 of both sides is pushed down in step to its curved surface, realizes that the piston rod 10 unblock of controllable air spring 11 goes up and down, and piston rod 10 fastening position when control handle 3 releases.
The supporting base 2 is preferably assembled, welded and formed with the lifting plate 1 and the supporting frame, and can be cast or numerically controlled, the frame is made of metal pipes, laser pipe cutting and blanking are automatically programmed to the required size, and a tool is used for split charging and welding, so that the manufacturing cost is low, the processing is easy to realize, and the mass production can be realized; or casting and forming, wherein the support base 2 is cast and formed in one step by using a mould and assembled with the lifting plate 1 by using standard hardware; and the carbon fiber material can be utilized to be integrally formed with the lifting plate 1 through hot pressing.
The control handle 3 can be made by various methods and shapes such as metal lathing, injection molding, die casting and the like, the eccentric driving wheel 7 is a round wheel provided with an eccentric supporting shaft hole, and can also be made into a model with various shapes such as a part of solid outside a stroke curve and the like.
The support frame 4 is preferably formed by punching or die-casting and can be assembled and welded, the support frame 4 is preferably an eccentric driving wheel pressing structure (shown in figure 7), the rod core 9 of the controllable air spring 11 is pressed by the eccentric driving wheel 7 to realize a control function, the eccentric driving wheel 7 is subjected to finish turning, and the structure is light and convenient to operate due to smooth and wear-resistant excircle; or a pressure head pressing plate structure (shown in figure 6) is adopted, the pressure head and the pressing plate are processed and formed by a linear cutting process or welded and formed, and the installation angle is easy to control; a cam pressing structure (not shown in the figure) can be adopted, and the action of the rod core 9 of the controllable air spring 11 is realized by using a cam instead of a pressure head and a pressure head, so that the control function is realized.
Example 2
Referring to fig. 11, in another embodiment of the present invention, the embodiment is different from the above embodiments in that a central control handle 31 is installed in the middle of the supporting shaft 5, and the rotation of the supporting shaft 5 can be realized by controlling the central control handle 31.
The utility model discloses a theory of operation is: the supporting shaft 5 used for supporting the shaft connection of the base 2 and the supporting frame 4 on two sides is prolonged to be shared on two sides, the eccentric driving wheels 7 with two same angles are fastened on the supporting shaft 5 in the supporting frame 4, the control handle 3 can be conveniently and flexibly arranged on the supporting shaft 4 in multiple modes, the curved surfaces of the eccentric driving wheels 7 on two sides press the rod core 9 of the controllable gas spring 11 by rotating the control handle 3, the synchronous unlocking and lifting of the piston rod 10 of the controllable gas spring 11 are realized, and the piston rod 10 is tightly fixed when the control handle 3 is released.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an air spring coordinated control mechanism, includes lifter plate (1), back shaft (5) and symmetrically sets up support base (2), support frame (4) and controllable air spring (11) in lifter plate (1) holding surface both sides, support base (2), support frame (4) are provided with the shaft hole that corresponds with back shaft (5), and support frame (4) are the U-shaped structure, and the bottom is provided with the installation interface of controllable air spring (11), and the bottom at support frame (4) is fixed in tightening up to piston rod (10) tip of controllable air spring (11), and rod core (9) of piston rod (10) stretch into in support frame (4), its characterized in that, install eccentric drive wheel (7) that have the support shaft hole between the side board of support frame (4), the working stroke of eccentric drive wheel (7) increases gradually with support shaft hole central distance, and the rod core (9) tip of controllable air spring (11) that is release state presses close to near distance support shaft hole center On the curved surface of the eccentric driving wheel (7) which is away from the lifting plate, the supporting shaft (5) is in shaft connection with the supporting base (2) arranged on the two sides of the supporting surface of the lifting plate (1), the supporting frame (4) and the eccentric driving wheel (7) in the supporting frame (4).
2. A gas spring linkage control mechanism according to claim 1, characterized in that the eccentric drive wheels (7) on both sides are fastened to the support shaft (5) at the same angle by means of fixing pins (6), welding or bonding.
3. A gas spring linkage control mechanism according to claim 2, further comprising a control handle (3), wherein the control handle (3) is mounted at two ends or one side or opposite middle part of the support shaft (5) or directly arranged on the eccentric driving wheel (7).
4. A gas spring linkage control mechanism according to claim 1, characterized in that the controllable gas springs (11) and the components of the support surface of the lifting plate (1) are mounted at a distance not less than the width of the largest size X-ray film.
5. A gas spring linkage control mechanism according to claim 1, characterised in that a support bearing (21) or lubricated bushing is mounted on the support base (2).
6. A gas spring linkage control mechanism according to claim 1 or 2, characterized in that both sides of said eccentric drive wheel (7) are fitted with fixing pin holes at the same angle with the support shaft (5), in which fixing pins (6) are fitted.
7. A gas spring linkage control mechanism according to claim 4, characterised in that a gas spring support arm (12) is connected to the lower end of the controllable gas spring (11).
8. A gas spring linkage control mechanism according to claim 1, characterized in that a limiting member (8) for limiting the rotation of the eccentric driving wheel (7) is mounted at one end of the inner side of the support frame (4).
9. A gas spring linkage control mechanism according to claim 2 or 3, characterized in that a central control handle (31) is mounted in the middle of the support shaft (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920600895.0U CN209839038U (en) | 2019-04-29 | 2019-04-29 | Air spring linkage control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920600895.0U CN209839038U (en) | 2019-04-29 | 2019-04-29 | Air spring linkage control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209839038U true CN209839038U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920600895.0U Active CN209839038U (en) | 2019-04-29 | 2019-04-29 | Air spring linkage control mechanism |
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| CN (1) | CN209839038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973577A (en) * | 2019-04-29 | 2019-07-05 | 上海品兴医疗设备有限公司 | A kind of unlocking structure of gas spring |
-
2019
- 2019-04-29 CN CN201920600895.0U patent/CN209839038U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973577A (en) * | 2019-04-29 | 2019-07-05 | 上海品兴医疗设备有限公司 | A kind of unlocking structure of gas spring |
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