CN210979134U - Single-direction rotating bracket - Google Patents

Abstract

The utility model provides a single directive runing rest, including the arm, the one end of arm is fixed with the first round, the other end of arm is fixed with the second wheel, the first round is fixed and the arm can wind the axis of first round rotates, the second round can for the arm rotates, the first round with second round overcoat has the drive belt, the second round is fixed with the mounting panel. The mounting plate always points to a specific direction along with the rotation of the bracket.

Description

Single-direction rotating bracket

Technical Field

The utility model relates to a support especially relates to a single directive runing rest.

Background

A rack is an accessory that can be mounted on different mechanisms to support the respective tools. To facilitate the use of the tool, it is contemplated that the arms of the stand may be designed to be rotatable. However, when the rotatable support is rotated to different angles, the angle at which the tool fixed on the arm points changes, so that the rotatable support is inconvenient to operate.

SUMMERY OF THE UTILITY MODEL

Therefore, the present invention is necessary to provide a unidirectional rotating bracket, in which the mounting plate always points to a specific direction along with the rotation of the bracket.

The utility model provides a single directive runing rest, including the arm, the one end of arm is fixed with the first round, the other end of arm is fixed with the second wheel, the first round is fixed and the arm can wind the axis of first round rotates, the second round can for the arm rotates, the first round with second round overcoat has the drive belt, the second round is fixed with the mounting panel.

Preferably, the device further comprises a controller, and the controller is used for controlling whether the arm and the first wheel rotate relatively or not.

Preferably, the controller includes button, locking plate and core, the locking plate with the arm is fixed, the core is equipped with first joint portion, the locking plate is equipped with second joint portion, first round is equipped with third joint portion, the button can for first round removes at primary importance and second place, when the button is located the primary importance, first joint portion with second joint portion breaks away from, makes the arm can be relative first round rotates, when the button is located the second place, first joint portion simultaneously with second joint portion with third joint portion joint makes the arm is relative first round is fixed.

Preferably, the first wheel includes a wheel body and a base, the wheel body is fixed with the base, and the third clamping portion is arranged on the base.

Preferably, the wheel body has an axial through hole, and the base is inserted into the through hole.

Preferably, the arm is fixed with a cap, the button is rotatably accommodated in the cap, a bayonet lock is formed on the button, the core is connected with a spring, when the button is pressed, the spring is pressed, a first end of an inner side surface of the cap is circumferentially distributed with a plurality of first ratchet teeth, a second end of the inner side surface of the cap is circumferentially distributed with a second ratchet teeth with the same number as the first ratchet teeth, the first ratchet teeth and the second ratchet teeth are opposite in a staggered manner, the first ratchet teeth comprise first inclined planes which are inclined in a direction away from the second ratchet teeth in the rotation direction of the button, the second ratchet teeth comprise second inclined planes which are inclined in a direction away from the first ratchet teeth in the rotation direction of the button, when the button is at a first position or a second position, the bayonet lock is limited in a groove between the two first ratchet teeth, the button is pressed, and the bayonet lock moves along the second inclined planes, by the return of the spring, the bayonet pin moves along the first inclined plane to be limited in the grooves of the other two first ratchets, so that the button is in the second position or the first position.

The utility model discloses when rotating, first round is relatively fixed, and the arm can rotate around the axis of first round, and at the rotation in-process, the drive belt rotates along with the arm to make the second round rotate for the arm, the rotation direction is opposite and the angle is the same basically with the rotation direction of arm, and then makes the mounting panel orientation unanimous all the time.

Drawings

Fig. 1 is a schematic structural diagram of an auxiliary structure according to an embodiment.

Fig. 2 is a partial sectional view at the angle adjuster of the embodiment.

Fig. 3 is a schematic view of fig. 2 after changing the installation position.

Fig. 4 is an exploded view of the bracket of the embodiment.

Fig. 5 is a schematic structural view of the cap of the embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The embodiment provides an auxiliary structure, which comprises an angle adjuster 10 and a bracket 20, wherein the bracket 20 comprises an arm 21, the angle adjuster 10 is used for adjusting the angle of the arm 21, the angle adjuster 10 comprises a connecting plate 11, and the connecting plate 11 is used for being fixed on other structures, such as an electric wheelchair. An operating tool, for example, a lever of an electric wheelchair may be fixed to the rotating bracket 20.

The connecting plate 11 has a first face 101 and a second face 102 opposite to the first face 101, the first face 101 has a plurality of different fixing positions, and slopes of at least two different fixing positions of the first face 101 are not equal. In this embodiment, as shown in fig. 2 and 3, the first surface 101 is an arc surface, for example, a circular arc surface, so that the slope at each fixing position is different, or the first surface 101 includes a plurality of surfaces that are sequentially connected from one end to the other end and have different slopes.

The arm 21 is connected with a base 22, the base 22 can be fixed to the connecting plate 11, specifically, the base 22 can be fixed to the connecting plate 11 at different fixing positions, and since slopes of at least two different fixing positions of the first surface 101 are not equal, when the base 22 is fixed to different fixing positions, an included angle with a horizontal plane is not equal, so that an included angle between the arm 21 and the horizontal plane is not equal, and an angle change of an operating tool fixed to the support 20 relative to the horizontal plane is realized. As shown in fig. 2 and 3, if the first surface 101 is a curved surface, the angles of the operation tools are different in installation at different positions, and if the first surfaces 101 are sequentially connected by a plurality of surfaces having different slopes, the operation tools are installed on different surfaces, and the angles of the operation tools are different.

In this embodiment, a strip-shaped hole 103 is formed in the connecting plate 11, the locking member 12 sequentially penetrates through the second surface 102 and the first surface 101 to be connected with the base 22, so as to fix the base 22 on the connecting plate 11, and the locking member 12 may include a locking screw. The first side of the connecting plate 11 is recessed with a sliding groove 111, the first surface 101 is a bottom surface of the sliding groove 111, and the base 22 is defined in the sliding groove 111, which facilitates positioning and installation of the base 22.

In this embodiment, as shown in fig. 4, the bracket 20 further includes a first wheel 23 and a second wheel 24, the arm 21 has a first end 201 and a second end 202, the first wheel 23 is disposed at the first end 201, the second wheel 24 is disposed at the second end 202, the first wheel 23 and the second wheel 24 are both rotatably connected to the arm 21, a driving belt 25 is sleeved on the first wheel 23 and the second wheel 24, the first wheel 23 and the second wheel 24 may be gears, and the driving belt 25 may be a belt. The wheel body 232 of the first wheel 23 is fixed to the base 22, and the mounting plate 26 is fixed to the second wheel 24.

The mounting plate 26 may be oriented in a predetermined direction, such as directly forward. The arm 21 is rotated clockwise (same as counterclockwise), since the first wheel 23 is fixed, the arm 21 rotates relative to the first wheel 23, that is, the second end 202 can rotate relative to the first wheel 23, during the rotation, the transmission belt 25 rotates clockwise along with the arm 21, the transmission belt 25 rotates clockwise relative to the first wheel 23, the second wheel 24 rotates counterclockwise under the action of the transmission belt 25, since the second wheel 24 is transmitted by the transmission belt 25, during the rotation, the mounting plate 26 always faces a set direction, for example, always faces the right front, so that, for example, a control lever mounted on the mounting plate 26 always faces the right front.

The support 20 further comprises a controller 26, and the controller 26 is configured to control whether the arm 21 and the first wheel 23 rotate relatively.

Specifically, the controller 26 includes a button 261, a stop piece 262 and a core 263, the stop piece 262 and the arm 21 are fixed, the core 263 is provided with a first clamping portion 2631, the stop piece 262 is provided with a second clamping portion 2621, the first wheel 23 is provided with a third clamping portion 231, in this embodiment, the first wheel 23 includes a wheel body 232 and the base 22, the wheel body 232 is fixed with the base 22, the third clamping portion 231 is disposed on the base 22, the wheel body 232 is provided with an axial through hole 2321, and the base 22 is inserted into the through hole 2321. The first clamping portion 2631, the second clamping portion 2621 and the third clamping portion 231 may be latch structures.

The button 261 can for first wheel 23 moves at first position and second position, when the button 261 is located the first position, first joint portion 2631 with second joint portion 2621 breaks away from, makes the arm 21 can be relative first wheel 23 rotates, when the button 261 is located the second position, first joint portion 2631 simultaneously with second joint portion 2621 with third joint portion 231 joint makes the arm 21 is relative first wheel 23 is fixed.

In this embodiment, a cap 264 is fixed to the arm 21, the cap 264 is located at the top of the arm 21, the button 261 is rotatably accommodated in the cap 264, a plurality of pins 2611 are formed on the button 261, a spring 265 is connected to the slug 263, when the button 261 is pressed, the spring 265 is pressed, and the spring 265 can provide an elastic force to the slug 263 in a direction opposite to the pressing direction.

A plurality of first ratchet teeth 2641 are circumferentially distributed at a first end of the inner side surface of the cap 264, second ratchet teeth 2642 with the same number as the first ratchet teeth 2641 are circumferentially distributed at a second end of the inner side surface of the cap 264, the first end is a top end, namely, one end close to the first wheel 23, and the second end is a bottom end, namely, one end far away from the first wheel 23. The first ratchet 2641 and the second ratchet 2642 are opposite to each other in a shifted manner, a locking groove 2643 is formed between the first ratchet 2641 and the second ratchet 2642, and the locking pin 2611 is received in the locking groove 2643 and can slide in the locking groove 2643.

The first ratchet 2641 includes a first inclined surface 410 inclined in a direction away from the second ratchet 2642 in a rotation direction of the button 261, the second ratchet 2642 includes a second inclined surface 411 inclined in a direction away from the first ratchet 2641 in the rotation direction of the button, and the first inclined surface 410 and the second inclined surface 411 are guide surfaces. Two of the first ratchet teeth 2641 form a groove 413 therebetween, and the depth of two adjacent grooves 413 is different, that is, the distance from the groove bottom of two adjacent grooves 413 to the top of the cap 264 is different, and the depth of two spaced grooves 413 is the same.

The pin 2611 is confined in a groove 413 between two first ratchet teeth 2641, the depth of the groove 413 being small, and when the button 261 is in the first position, the arm 21 is rotatable relative to the first wheel 23. When the button 261 is pressed, the button 261 moves vertically downwards, the pin 2611 contacts the second inclined surface 411 and then moves clockwise and downwards along the second inclined surface 411, when the corresponding position below the first inclined surface 410 is reached, the button 261 is released, the spring 265 resets, the button 261 moves vertically upwards, after the pin contacts the first inclined surface 410, the pin 2611 further moves along the first inclined surface 410 until the pin is limited in the grooves 413 of the other two first ratchet teeth 2641 under the continuous action of the reset spring 265, the button 261 is at the second position, the arm 21 is fixed relative to the first wheel 23, the movement from the second position to the first position is the same, and the description is omitted, so that the position of the button 261 is convenient to change and fix.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the present invention.

Claims (6)

1. A single-direction rotating support comprises an arm, and is characterized in that a first wheel is fixed to one end of the arm, a second wheel is fixed to the other end of the arm, the first wheel is fixed, the arm can rotate around the axis of the first wheel, the second wheel can rotate relative to the arm, a driving belt is sleeved on the first wheel and the second wheel, and a mounting plate is fixed to the second wheel.

2. The uni-directional rotating bracket according to claim 1 further comprising a controller for controlling whether the arm rotates relative to the first wheel.

3. The uni-directional rotating bracket according to claim 2, wherein the controller comprises a button, a stopper and a core, the stopper is fixed to the arm, the core is provided with a first clamping portion, the stopper is provided with a second clamping portion, the first wheel is provided with a third clamping portion, the button can move at a first position and a second position relative to the first wheel, when the button is located at the first position, the first clamping portion is separated from the second clamping portion, so that the arm can rotate relative to the first wheel, and when the button is located at the second position, the first clamping portion is simultaneously clamped to the second clamping portion and the third clamping portion, so that the arm is fixed relative to the first wheel.

4. The uni-directional rotating bracket according to claim 3 wherein the first wheel comprises a wheel body and a base, the wheel body is fixed with the base, and the third engaging portion is provided on the base.

5. The uni-directional rotary bracket of claim 4 wherein the wheel body has an axial through hole into which the seat is inserted.

6. The uni-directional rotating bracket according to any one of claims 3 to 5, wherein the arm is fixed with a cap, the button is rotatably received in the cap, the button is formed with a detent, the core is connected with a spring, the spring is compressed when the button is pressed, a first end of an inner side of the cap is circumferentially distributed with a plurality of first ratchet teeth, a second end of the inner side of the cap is circumferentially distributed with a plurality of second ratchet teeth, the number of the second ratchet teeth is the same as that of the first ratchet teeth, the first ratchet teeth and the second ratchet teeth are staggered and opposite to each other, the first ratchet teeth comprise a first inclined surface inclined in a direction away from the second ratchet teeth in the rotation direction of the button, the second ratchet teeth comprise a second inclined surface inclined in a direction away from the first ratchet teeth in the rotation direction of the button, and the detent ratchet teeth are limited in a groove between the two first ratchet teeth when the button is in the first position or the second position, when the button is pressed, the clamping pin moves along the second inclined surface, and is reset by the spring, the clamping pin further moves along the first inclined surface to be limited in the grooves of the other two first ratchets, so that the button is in the second position or the first position.

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