CN216590799U

CN216590799U - Balancing device capable of realizing adjustable bearing of support

Info

Publication number: CN216590799U
Application number: CN202121639040.2U
Authority: CN
Inventors: 尤小东; 林高波
Original assignee: Ningbo Tuotuohe Design Co ltd
Current assignee: Ningbo Tuotuohe Design Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-05-24
Anticipated expiration: 2031-07-19

Abstract

The utility model relates to a balancing device for realizing adjustable support bearing, which comprises a base, a connector for mounting a display and a mechanical spring, wherein an upper arm plate and a lower arm plate are arranged between the base and the connector, the upper arm plate is parallel to the lower arm plate, a hinge joint between the upper arm plate and the connector, a hinge joint between the lower arm plate and the connector, the lower arm plate, a hinge joint between the lower arm plate and the base, a hinge joint between the upper arm plate and the base and the upper arm plate form a quadrilateral structure, and one end of the mechanical spring is connected with the base through a hinge. The balance device for realizing adjustable support bearing is adopted, the mechanical spring type support is provided with the rear adjusting mechanism, is convenient to adjust, can freely stop at different bearing heights, and is good in experience.

Description

Balancing device capable of realizing adjustable bearing of support

Technical Field

The utility model relates to the field of support structures, in particular to a balancing device capable of realizing adjustable support bearing.

Background

In the market, the support that the bearing is adjustable and height can freely stop mainly adopts air spring structure or mechanical spring structure to realize. The gas spring has the defects of high cost, short service life, hidden oil leakage, stable performance, no environmental protection (difficult treatment due to scrapping) and the like, but has stable force value and better experience in the aspect of realizing free stop on different bearing and heights. Currently, gas spring supports still play a leading role.

Mechanical spring has advantages such as with low costs, life-span height, stable performance, safety ring protects, but utilizes mechanical spring's support to rely on frictional force too much in the aspect of the free stop in different bearing and height at present to reach the equilibrium, experiences relatively poorly. But also the range of different load bearing is not large. Fewer brackets are used with mechanical spring structures.

The support needs to satisfy the high equilibrium of going up of different bearing, needs to have an adjustment mechanism promptly, satisfies the demand of different bearing through adjustment mechanism, and this adjustment mechanism of support mainly sets up's front end on the market at present, and this has just restricted product appearance and has also the requirement to interior space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides the balancing device which has the advantages of low cost, long service life, stable performance, safety and environmental protection and can realize adjustable bearing of the bracket.

In order to achieve the aim, the balancing device for realizing adjustable bearing of the bracket comprises the following components:

this realize support bearing adjustable balancing unit, its key feature is, the device include base, mechanical spring and the connector of installation display, base and connector between be equipped with arm board and underarm board, pin joint, connector between upper arm board and the connector, pin joint, the pin joint of underarm board, underarm board and base, the pin joint of upper arm board and base, upper arm board between pin joint, the arm board form quadrilateral structure, mechanical spring's one end with base hinged joint.

Preferably, the device further comprises a threaded slider and a threaded rod, the other end of the mechanical spring is hinged to the threaded slider, the threaded slider is sleeved on the threaded rod, the threaded rod is mounted on the connecting head, and the threaded slider moves along the threaded rod when the threaded rod is driven to rotate by operating the end of the threaded rod.

Preferably, the device adjusts the position of the threaded slider on the threaded rod according to the weight of a display connected with the connector, so that when the connector is moved upwards or downwards, the connector is supported and adjusted to stop at different heights relative to the base.

Preferably, the lower arm plate is provided with a projection, and the upper arm plate is provided with a groove corresponding to the projection of the lower arm plate.

Preferably, the device still include screw thread and locking screw, mechanical spring's the other end and connector or underarm board hinged joint, locking screw and screw thread phase-match, the screw thread establish in the hinge hole of last arm board or underarm board and base or connector, go up arm board and base, go up arm board and connector, underarm board and base and underarm board and the hinged joint mode of connector be through locking screw connection, or riveted connection.

The mechanical spring type support has the advantages that the balance device for realizing adjustable support bearing is adopted, the mechanical spring type support is provided, the adjusting mechanism is arranged at the rear position, the adjustment is convenient, the free stop at different bearing heights can be realized, and the experience is better.

Drawings

Fig. 1 is an exploded structural view of a balancing device for realizing adjustable support bearing of the utility model.

Fig. 2a is a side view of the balancing device for realizing the adjustable support bearing of the bracket of the utility model for upward adjustment.

Fig. 2b is a side view of the balancing device for realizing adjustable support bearing of the utility model for adjusting downwards.

Fig. 2c is an enlarged schematic view of the connector of the balancing device for realizing adjustable support bearing of the bracket.

Fig. 3 is a schematic structural diagram of a prior art non-adjustable front end.

Fig. 4 is a schematic diagram of a two-dimensional coordinate system of the balancing device for realizing adjustable support bearing, which takes the hinged point of the base and the lower arm as the origin of coordinates.

Fig. 5 is a schematic view of the threaded slider at the lowest point of the balancing device for realizing adjustable support bearing of the utility model.

Fig. 6 is a schematic view of a threaded slider at a middle point of the balancing device for realizing adjustable support bearing of the utility model.

Fig. 7 is a schematic diagram of a threaded slider of the balancing device for realizing adjustable support bearing of the utility model at the highest point.

Fig. 8a is a side view of the flat placement of the balancing device of the utility model for realizing adjustable support load.

Fig. 8b is a cross-sectional view of the flat placement of the balancing device of the utility model for realizing adjustable support load.

Fig. 9 is a downward cross-sectional view of the balancing device of the utility model for realizing adjustable load bearing of the bracket.

Fig. 10 is a perspective view of the balancing device for realizing adjustable support bearing of the utility model.

Fig. 11 is a schematic diagram of a second structure of the balancing device for realizing adjustable support bearing of the utility model.

Fig. 12 is an exploded schematic view of a second structure of the balancing device for realizing adjustable support bearing of the utility model.

Fig. 13a is a schematic view of a locking screw of the balancing device for realizing adjustable support bearing of the bracket.

Fig. 13b is an enlarged schematic view of a locking screw of the balancing device for realizing adjustable support bearing of the bracket.

Reference numerals:

1 base

2 connecting head

3 Upper arm plate

4 lower arm plate

5 mechanical spring

6 threaded rod

7 screw thread slider

8 special external nut

9 bump

10 adjustment mode identification

11 locking screw

12 nut

Detailed Description

In order to more clearly describe the technical contents of the present invention, the following further description is given in conjunction with specific embodiments.

The balancing device for realizing adjustable bearing of the support comprises a base, a mechanical spring and a connector for mounting a display, wherein an upper arm plate and a lower arm plate are arranged between the base and the connector, a hinge point between the upper arm plate and the connector, a hinge point between the connector and the lower arm plate, a hinge point between the lower arm plate and the connector, a hinge point between the lower arm plate and the base, a quadrilateral structure formed among the base, a hinge point between the upper arm plate and the base and an upper arm plate, and one end of the mechanical spring is hinged with the base.

As a preferred embodiment of the present invention, the device further includes a threaded slider and a threaded rod, the other end of the mechanical spring is hinged to the threaded slider, the threaded slider is sleeved on the threaded rod, the threaded rod is mounted on the connection head, and the threaded slider moves along the threaded rod when the threaded rod is driven to rotate by operating the end of the threaded rod.

As a preferred embodiment of the present invention, the device adjusts the position of the threaded slider on the threaded rod according to the weight of the display to which the connector is connected, so that when the connector is moved up or down, the connector is supported and adjusted to stop at different heights relative to the base.

In a preferred embodiment of the present invention, the lower arm plate is provided with a protrusion, and the upper arm plate is provided with a groove corresponding to the protrusion of the lower arm plate.

As a preferred embodiment of the present invention, the device further includes a screw thread and a locking screw, the other end of the mechanical spring is hinged to the connector or the lower arm plate, the locking screw is matched with the screw thread, the screw thread is arranged in a hinge hole between the upper arm plate or the lower arm plate and the base or the connector, and the hinge connection between the upper arm plate and the base, between the upper arm plate and the connector, between the lower arm plate and the base, and between the lower arm plate and the connector is through the locking screw connection or the riveting connection.

In the specific embodiment of the utility model, a balance mechanism which is provided with a rear adjusting mechanism on a bracket and utilizes a mechanical spring to realize free stop in height is provided, and the utility model comprises two hardware structures.

The first structure is as follows:

the support includes the base and is used for installing the connector of display, base and connector between set up parallel last linking arm and lower linking arm, last linking arm and connector between pin joint, connector, down the pin joint between linking arm and the connector, down the linking arm, down the pin joint of linking arm and base, go up the pin joint of linking arm and base, go up and form quadrilateral structure between the linking arm.

The display support include mechanical spring, mechanical spring's one end with the base articulated mutually, mechanical spring's the other end articulated mutually with the screw slider, the screw slider cup joint on the threaded rod, the threaded rod set up the connecting head on, make in the operation the tip of threaded rod and drive the threaded rod rotatory time, the screw slider along the threaded rod portable, according to the weight adjustment of the display on the connecting head the screw slider be in the threaded rod on the position for upwards or move down the connecting head time, the connecting head can freely stop in for the different height of base.

In the connection mode of the mechanical spring, one end of the spring is hinged to the base, and the other end of the spring is hinged to the threaded sliding block and is installed on the connecting head together. The design has lower requirements on the shape and the size of the inner space of the base (because the force value does not need to be adjusted on the base, but is adjusted on the connecting head). Can be applied to the bracket with the different conventional shapes.

The balance mechanism of this kind of structure uses mechanical spring, and it has advantages such as with low costs, longe-lived, stable performance, safety ring protects, utilizes balanced principle and structural mechanics analysis, combines mechanical spring power value characteristic, designs the movement track of spring parameter, reasonable mounted position and screw slider end, makes it can satisfy the effect of freely stopping on the different bearing height, solves mechanical spring class support too much and relies on frictional force, influences the problem of using experience. And the conventional gas spring is replaced, so that the cost is greatly reduced.

The lower arm plate is provided with a bump, and the upper arm plate is provided with a groove corresponding to the bump, so that the highest point and the lowest point can be used for limiting.

Be equipped with the rotatory sign for on the connector, convenience of customers operation.

The principle of the mechanical spring free balance hovering technology of the first structural scheme is as follows:

the free balance hovering technology is convenient for people to adjust the height of the display without using tools, and users can freely stop the display only by moving the display to a desired height, so that the requirement that the users face the display in a comfortable posture is met. At present, most elastic elements in the technology on the market are gas springs, and the gas springs have the defects of high cost, short service life, hidden oil leakage danger, environmental pollution (difficult disposal due to scrapping) and the like. The technology has the unique point that the conventional elastic element of the gas spring is replaced by the mechanical spring, the adjusting mechanism is arranged at the rear end (the connector), the balance principle and structural mechanics analysis are applied, the mechanical spring force value characteristic is combined, an objective function equation formula is established, the computer optimization analysis is adopted, the structural characteristics and the application characteristic of the product are synthesized, the structural size of the connecting arm is calculated, the combination of the related parameters of the spring and the size of the installation position of the spring are calculated, the optimal effect of realizing constant-force bearing in the weight reasonable range and the height adjusting range is achieved, the adjustment is simple and convenient, the balance experience effect is not inferior to that of the gas spring structure, and the technology further has the advantages of low cost, simplicity, reliability, long service life, safety, environmental protection and the like. Because the adjusting mechanism is arranged at the rear end, more choices can be made for the appearance and the shape of the whole product.

And establishing a two-dimensional coordinate system by taking the hinged connection point of the base and the lower arm as a coordinate origin O.

Point B is the hinged connection point of the lower arm plate and the connecting head, OB is the lower arm plate length L1. Point a (x0, y0) is the hinged connection of one end of the spring to the base, point C (x, y) is the other end of the spring, hinged to the threaded slider, and fixed to the connection, and AC is the stretched length L2 of the spring. Angle a is the angle between the lower arm plate and the X axis of the horizontal plane, and angle b is the angle between the spring AC and the lower arm plate OB.

Since the panel on which the display is mounted on the connector, the connector should be stopped freely in height in order to stop the display freely in height. And taking a hinged joint B of the connector and the lower arm plate as an analysis research object.

To meet the requirements of different load bearing and free stop in height, the balance system needs to satisfy the following two balances at the same time.

Balance 1: at initial angle a0, rotate adjusting screw control screw slider and move up and down to change the position of mechanical spring one end, change the size of the contained angle b of mechanical spring and lower arm board, satisfy the display of different bearing.

In order to balance the display in height, i.e. the torque M1 provided by gravity needs to be equal to the torque M2 provided by the spring, i.e. mg × L1 × cos (a0) ═ F × L2 × sin (b) (M is the weight M of the display, F is the tensile force of the spring, a0 is the initial position angle of the lower arm, and b is the included angle between the spring AC and the lower arm plate OB).

Obtained by the above formula

When the adjusting screw is rotated to control the threaded sliding block to move up and down, the variable quantity of the length AC of the spring is small and can be regarded as constant, so that the elastic force F is also constant, when the threaded sliding block moves up, the included angle b between the mechanical spring and the lower arm plate is reduced, the formula can obtain the included angle b, and the set weight m of the display is reduced. When the threaded slider moves downwards, the included angle b between the mechanical spring and the lower arm plate is increased, and the set weight m of the display is increased according to a formula. So that a balance of the display of different weights can be achieved.

The user only needs to rotate according to the rotary identification on the connector and adjusts, can control the elasticity moment size that is used for balancing required display weight size.

And (3) balance 2: when the weight is fixed, the balance is also ensured when the position of the display is adjusted up and down, namely the angle a is changed.

According to the kinetic energy theorem, the work a force performs on an object in a process that is equal to the change in the kinetic energy of the object in the process. Namely, it is

Because the external force borne by the whole mechanism in the motion process is only elasticity and gravity. In the range of motion, the vehicle can freely stop at any point in height, that is, after any angle a and a rotation angle Δ a, the front and rear speed v 2-v 1-0, that is, the kinetic energy change is 0. Therefore, in the process of rotating downwards by any angle a and an angle Δ a, the sum of the work done by gravity and the work done by elastic force is 0, and in the process, the gravity does positive work and the elastic force does negative work.

I.e. W_{Gravity force}-W_{Elasticity of the spring}＝0。

In the process, gravity does work: w_{Gravity force}＝mg×L1×(sina-sin(a+Δa))。

Elastic force does work:

the display weight m, the spring stiffness k, the initial position angle a0, the spring tension x1 for the pivot angle a, the spring tension x2 for the pivot angle a + Δ a, and the spring initial tension x0 for the display weight m.

According to the requirements, an objective function equation formula is established, and the combination of the related parameters of the spring and the mounting position of the spring are calculated by adopting computer optimization analysis and integrating the characteristics of the mechanical spring.

The second structure is as follows:

according to the formula of the first structure, the positions of two ends of a mechanical spring which is freely stopped at the height of a display with a certain weight m are calculated, then the friction force is increased by locking an upper arm plate and a lower arm plate, so that the height free stop of different bearings is realized, and the scheme cancels a threaded slide block, an adjusting screw and other adjusting mechanisms, thereby reducing the cost and realizing the height free stop of the display which can meet different bearings without adjustment. But the use experience effect is poor due to the participation of larger friction force.

The structure of this scheme is as follows:

The upper arm plate, the lower arm plate, the base and the connector are provided with threads in hinge holes, the upper arm plate is connected with the base and the connector in a hinge mode, and the lower arm plate is connected with the base and the connector in a screw thread mode or in a riveting mode (large riveting force is needed).

One end of the mechanical spring is hinged on the base, and the other end of the mechanical spring is hinged on the connecting head or the lower arm.

According to balance 2: when the weight is fixed, the balance is also ensured when the position of the display is adjusted up and down, namely the angle a is changed.

The external force applied in the process is elastic force, gravity and friction force.

After the rotation angle Δ a, the front and rear speed v 2-v 1-0, i.e., the kinetic energy change is 0. Therefore, in the process of rotating downward by an angle a at any angle a, the sum of the work done by gravity, the work done by elastic force and the work done by friction is 0, in the process, the gravity does positive work, the elastic force does negative work, and the friction can do positive work, negative work or 0.

When gravity acts on>When elastic, the friction force performs negative work, i.e. W_{Gravity force}-W_{Elasticity of the spring}-W_{Frictional force}＝0。

When gravity acts on<When elastic, the friction force acts positively, i.e. W_{Gravity force}-W_{Elasticity of the spring}+W_{Frictional force}＝0。

When gravity is equal to elastic force, the frictional force may be 0.

According to the formula, when a display with a certain weight can be obtained by adjusting the connecting positions of the two ends of the mechanical spring and integrating the characteristic attributes of the mechanical spring, the free stop on the height can be realized without friction force. For example a 5kg display. Then through the hinged joint screw of locking arm plate and base, connector, perhaps rivet is riveted tightly, increases frictional force, obtains 2-9kg and stops wantonly on high, and owing to there being the participation of frictional force, it is relatively poor to use experience, nevertheless because cancelled the part of adjustment mechanism such as screw slider, adjusting screw and lock nut for the cost is lower, also has simultaneously not receive the outward appearance restriction, need not advantages such as adjustment value, convenient to use.

In this specification, the utility model has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the utility model. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. The utility model provides a realize support bearing adjustable balancing unit, a serial communication port, the device include base, mechanical spring and the connector of installation display, base and connector between be equipped with arm board and lower arm board, pin joint, connector between upper arm board and the connector, pin joint, the pin joint of lower arm board, lower arm board and base between lower arm board and the connector, base, the pin joint of upper arm board and base, upper arm board between form quadrilateral structure, the one end of mechanical spring with base hinged joint.

2. The balance device for realizing adjustable bearing of the bracket as claimed in claim 1, wherein the device further comprises a threaded slider and a threaded rod, the other end of the mechanical spring is hinged with the threaded slider, the threaded slider is sleeved on the threaded rod, the threaded rod is installed on the connecting head, and the threaded slider moves along the threaded rod when the threaded rod is driven to rotate by operating the end part of the threaded rod.

3. The device for realizing the adjustable bearing of the bracket as claimed in claim 2, wherein the device adjusts the position of the threaded slider on the threaded rod according to the weight of a display connected with the connector, so that when the connector is moved upwards or downwards, the connector is supported and adjusted to stop at different heights relative to the base.

4. The device as claimed in claim 2, wherein the lower arm plate is provided with a protrusion, and the upper arm plate is provided with a groove corresponding to the protrusion of the lower arm plate.

5. The balance device with the adjustable bearing support of the realization support of claim 1, wherein the device further comprises a thread and a locking screw, the other end of the mechanical spring is hinged with the connector or the lower arm plate, the locking screw is matched with the thread, the thread is arranged in a hinge hole of the upper arm plate or the lower arm plate and the base or the connector, and the upper arm plate and the base, the upper arm plate and the connector, the lower arm plate and the base and the lower arm plate and the connector are connected in a hinge connection mode through the locking screw or in a riveting connection mode.