A friction-locked electric control handle

Abstract

A friction-locked electric control handle aims to solve the problems that the electric control handle is prone to accidental touch and the output signal is unstable; it includes a base, a rocking rod is inserted through the base, the rocking rod is rotatably connected to the base, an upper cover is threadedly connected to the upper end of the rocking rod, a lower cover located below the upper cover is sleeved outside the rocking rod, a lifting lock fixedly connected to the lower cover is sleeved outside the rocking rod, and a limiting hole is provided on the base; a friction block sleeved outside the rocking rod is provided below the base, a pressing plate is provided below the friction block, a fixed seat is fixed to the lower end of the rocking rod, and a first spring is provided between the fixed seat and the pressing plate; a slider connected to the fixed seat is rotatably arranged in the base, a magnet is provided at the rotation center of the slider, a module box is fixedly connected to the side of the base, and a Hall sensor corresponding to the magnet is provided in the module box; the structure of the present invention is ingenious and convenient to use, which can avoid accidental unlocking of the rocking rod, and at the same time realize automatic locking during the operation of the rocking rod, improve the stability and accuracy of signal output, and enhance the convenience of use.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial handles, and particularly to an electrically controlled handle with friction locking. Background Art

[0002] In an electrically controlled handle, when operating a device through the handle, the angle of rotating the handle rocker controls the output signal. When it is necessary to continuously output a signal of the same intensity, it is necessary to fix this angle, which requires a high level of the operator. The operator needs to keep the hand movement unchanged to maintain the stability of the output signal of the electrically controlled handle. If the required time is long, it is very difficult for the operator to complete.

[0003] The electrically controlled handle needs to be locked in the non-use state to avoid accidental touch causing the device to move and triggering a safety accident. In the prior art, an unlocking button is mostly provided on one side of the grip to control the locking structure, but the button provided on the side is prone to accidental touch. Summary of the Invention

[0004] To overcome the defects of the prior art, the present invention provides an electrically controlled handle with friction locking, aiming to solve the problems of easy accidental touch and unstable output signal of the electrically controlled handle.

[0005] The technical solution for solving the technical problem is: an electrically controlled handle with friction locking, including a base. A rocker is passed through the base, and the rocker is rotatably connected to the base. The upper end of the rocker is threadedly connected with an upper cover. A lower cover is sleeved outside the rocker and is located below the upper cover. A lifting lock fixedly connected to the lower cover is sleeved outside the rocker. A limiting hole is provided on the base, and the lower end of the lifting lock is inserted into the limiting hole, so that the rocker cannot rotate on the base. A friction block sleeved outside the rocker is provided below the base. A pressing plate is provided below the friction block. A fixed seat is fixed to the lower end of the rocker. A first spring is provided between the fixed seat and the pressing plate. The lower end of the friction block is of an arc-shaped structure. After the rocker rotates, the pressing plate moves away from the rotation center of the rocker, and the first spring is compressed, so that the friction force between the pressing plate and the friction block increases, thereby locking the position of the rocker. A sliding member connected to the fixed seat is rotatably arranged in the base. A magnet is provided at the rotation center of the sliding member. A module box is fixedly provided on the side of the base, and a Hall sensor corresponding to the magnet is provided in the module box.

[0006] Preferably, an installation seat is provided on the base. A first long hole is opened on the installation seat. The limiting hole is located above the first long hole. The rocker passes through the first long hole. A rotating shaft is fixed to the rocker, and the rotating shaft and the installation seat are connected by a first pin, constituting a structure in which the rocker is rotatably connected to the base.

[0007] Preferably, a dust-proof sleeve is sleeved outside the lifting lock, and the lower end of the dust-proof sleeve is fixed to the base.

[0008] Preferably, a second spring is provided between the upper cover and the lower cover. The second spring pushes the lower cover downward so that the lifting lock enters the limiting hole.

[0009] Preferably, a second long hole is provided in the middle of the friction block, a cavity with an open lower end is provided on one side of the second long hole, and a positioning device is provided in the cavity.

[0010] Preferably, the upper surface of the pressing plate fits with the lower end of the friction block, limiting plates are provided on both sides of the upper surface of the pressing plate, and a positioning groove for cooperating with the positioning device is provided on the upper surface of the pressing plate.

[0011] Preferably, the positioning device includes a slider slidably disposed in the cavity, the lower end of the slider is concavely arc-shaped, a second pin is provided at the lower end of the slider, the second pin is horizontally placed in the arc-shaped groove, and when the rocking bar is in the middle position, the second pin enters the positioning groove of the pressing plate.

[0012] Preferably, a third spring is provided above the slider.

[0013] Preferably, a long groove is provided below the sliding member, and one end of the fixed seat is inserted into the long groove.

[0014] The structure of the present invention is ingenious and easy to use, which can avoid accidental unlocking of the rocking bar, and at the same time achieve automatic locking during the operation of the rocking bar, improve the stability and accuracy of signal output, and enhance the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention.

[0016] Figure 2 is a schematic front-sectional structural view of the present invention.

[0017] Figure 3 is a schematic side-sectional structural view of the present invention.

[0018] Figure 4 is a schematic internal-sectional structural view of the present invention.

[0019] Figure 5 is a schematic structural diagram of the pressing plate in the present invention.

[0020] Figure 6 is a schematic structural diagram of the base in the present invention.

[0021] Figure 7 is a schematic structural view of the friction block in the present invention Figure 1 .

[0022] Figure 8 is a schematic structural view of the friction block in the present invention Figure 2 . DETAILED DESCRIPTION OF THE INVENTION

[0023] The following is combined with the attached Figure 1-8The specific embodiments of the present invention are further described. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] It should be noted that, in the description of the invention, the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are descriptions of the structure of the present invention based on the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0025] A friction-locked electric control handle comprises a base 1, a rocking stick 2 is passed through the base 1, the rocking stick 2 is rotatably connected to the base 1, an upper cover 3 is threadedly connected to the upper end of the rocking stick 2, a lower cover 4 located below the upper cover 3 is sleeved on the outside of the rocking stick 2, a lifting lock 5 fixedly connected to the lower cover 4 is sleeved on the outside of the rocking stick 2, a limiting hole 6 is provided on the base 1, the lower end of the lifting lock 5 is inserted into the limiting hole 6, and the rocking stick 2 cannot rotate on the base 1; a friction block 7 sleeved on the outside of the rocking stick 2 is provided below the base 1, a pressure plate 8 is provided below the friction block 7, and the lower end of the rocking stick 2 is sleeved on the outside of the rocking stick 2. A fixing seat 9 is fixed, and a first spring 10 is provided between the fixing seat 9 and the pressure plate 8. The lower end of the friction block 7 is an arc-shaped structure. After the rocker 2 rotates, the pressure plate 8 is away from the rotation center of the rocker 2. The first spring 10 is compressed to increase the friction between the pressure plate 8 and the friction block 7, thereby locking the position of the rocker 2. A sliding member 11 connected to the fixing seat 9 is rotatably provided in the base 1, and a magnet 12 is provided at the rotation center of the sliding member 11. A module box 13 is fixed on the side of the base 1, and a Hall sensor corresponding to the magnet 12 is provided in the module box 13.

[0026] When the present invention is used in a specific manner,

[0027] In the initial state, the rocking bar 2 is in the middle position. At this time, the lower end of the lifting lock 5 is inserted into the limiting hole 6 of the base 1, the rocking bar 2 cannot rotate, the pressure plate 8 is located at the lower end of the friction block 7, and the first spring 10 is in the longest length state. When the rocking bar 2 is rotated, the lower cover 4 is pulled upward to drive the lifting lock 5 to move up and disengage from the limiting hole 6, so that the rocking bar 2 can rotate on the base 1. The rotation of the rocking bar 2 drives the pressure plate 8 to rotate under the friction block 7. As the angle increases, the compression of the first spring 10 increases, and the force acting on the pressure plate 8 increases, thereby increasing the friction between the pressure plate 8 and the friction block 7. The friction block 7 is greater than the sum of other forces in the free state of the rocking bar 2, so that the rocking bar 2 remains stable in the non-operating state at this position.

[0028] The rotation of the fixed seat 9 at the end of the rocking rod 2 drives the slider 11 to rotate within the base 1, causing the magnet 12 to rotate. The Hall sensor within the module box 13 receives the signal of the rotation of the magnet 12 and then converts the signal of the rotation angle of the magnet 12 into a control signal for output, thereby achieving the control of the actuating device.

[0029] When the rocking rod 2 returns to the middle position, the locking latch 5 enters into the limiting hole 6 to lock the position of the rocking rod 2. At this time, the acting force of the first spring 10 on the pressure plate 8 is the smallest, and there is no influence when rotating the rocking rod 2.

[0030] To achieve the rotation of the rocking rod 2 and the base 1, the base 1 is provided with a mounting seat 14. The mounting seat 14 is provided with a first long hole 15. The limiting hole 6 is arranged above the first long hole 15. The rocking rod 2 passes through the first long hole 15. A rotating shaft 16 which is rotatably connected to the mounting seat 14 is fixed outside the rocking rod 2. The rotating shaft 16 is rotatably connected to the mounting seat 14 via a first pin 17. The rocking rod 2 and the rotating shaft 16 are detachably connected. The outside of the rotating shaft 16 is rotatably fixed on the mounting seat 14 using the first pin 17.

[0031] The limiting hole 6 is slightly larger than the lower end dimension of the locking latch 5, and a chamfer is provided at the edge, facilitating the smooth entry of the locking latch 5 into the limiting hole 6. After entry, the rocking rod 2 is locked and cannot rotate.

[0032] After the locking latch 5 moves upward, the rocking rod 2 moves within the first long hole 15, and the first long hole 15 defines the extreme positions of the rocking rod 2.

[0033] To protect the internal structure of the grip, a dust cover 18 is sleeved outside the locking latch 5. The lower end of the dust cover 18 is fixed on the base 1. The dust cover 18 protects all the internal structures within the grip inside to prevent dust from entering.

[0034] To improve the locking efficiency of the locking latch 5 on the rocking rod 2, a second spring 19 is provided between the upper cover 3 and the lower cover 4. When the lower cover 4 is not subject to external force, when the rocking rod 2 moves to the middle position, the second spring 19 pushes the lower cover 4 downward, causing the locking latch 5 to enter into the limiting hole 6, thereby locking the rocking rod 2.

[0035] A second long hole 20 is provided in the middle of the friction block 7. A cavity 21 with an open lower end is provided on one side of the second long hole 20. A positioning device is provided within the cavity 21. The upper surface of the pressure plate 8 fits with the lower end of the friction block 7. Limiting plates 22 are provided on both sides of the upper surface of the pressure plate 8. A positioning groove 23 which cooperates with the positioning device is provided on the upper surface of the pressure plate 8. The positioning device includes a slider 24 which is slidably arranged within the cavity 21. The lower end of the slider 24 is concaved in a circular arc shape. A second pin 25 is provided at the lower end of the slider 24. The second pin 25 is horizontally placed within the circular arc groove. When the rocking rod 2 is in the middle position, the second pin 25 enters into the positioning groove 23 of the pressure plate 8. A third spring 26 is provided above the slider 24.

[0036] The friction block 7 is fixed below the base 1. The rocking rod 2 passes through the second long hole 20. The limiting plate 22 is used to limit the lateral positions of the pressing plate 8 and the friction block 7. When the pressing plate 8 rotates, the second pin 25 and the positioning groove 23 can be engaged and separated. When the rocking rod 2 is in the middle position, the third spring 26 pushes the second pin 25 into the positioning groove 23. When the rocking rod 2 rotates, the edge of the positioning groove 23 pushes the second pin 25 to retract into the cavity 21, compressing the second spring 19. During rotation, the change brought by the acting force of the third spring 26 can be felt through the sense of touch, so as to determine whether the rocking rod 2 is in the middle position locking state, which is convenient for blind operation of the rocking rod 2.

[0037] A long groove is formed below the sliding member 11. One end of the fixed seat 9 is inserted into the long groove. Since the rotation centers of the rocking rod 2 and the sliding member 11 are not on the same axis, when the fixed seat 9 rotates, there will be a dislocation phenomenon with the sliding member 11. The long groove can avoid the interference between the two, enabling the fixed seat 9 to drive the sliding member 11 to rotate smoothly.

[0038] Compared with the prior art, the present invention has the following beneficial effects: 1. It can achieve automatic middle position locking, and it is not easily accidentally touched and unlocked after locking, which better protects the electric control handle and reduces safety accidents caused by accidental touch; 2. It can achieve automatic positioning through friction, avoiding the movement of the rocking rod when outputting signals and ensuring the stability of the output signals; the middle position locking and other position states can be judged by the sense of touch, so as to quickly identify whether it is in the middle position locking state, so as to operate the rocking rod.

Claims

1. A friction-locked electric control handle, characterized in that, It includes a base (1), a rocking rod (2) is passed through the base (1), the rocking rod (2) is rotatably connected to the base (1), an upper cover (3) is threadedly connected to the upper end of the rocking rod (2), a lower cover (4) located below the upper cover (3) is sleeved outside the rocking rod (2), a locking handle (5) fixedly connected to the lower cover (4) is sleeved outside the rocking rod (2), a limiting hole (6) is provided on the base (1), the lower end of the locking handle (5) is inserted into the limiting hole (6), and the rocking rod (2) cannot rotate on the base (1); a friction block (7) sleeved outside the rocking rod (2) is provided below the base (1), a pressing plate (8) is provided below the friction block (7), a fixing seat (9) is fixed to the lower end of the rocking rod (2), a first spring (10) is provided between the fixing seat (9) and the pressing plate (8), the lower end of the friction block (7) is of an arc-shaped structure, after the rocking rod (2) rotates, the pressing plate (8) moves away from the rotation center of the rocking rod (2), and the first spring (10) is compressed to increase the friction force between the pressing plate (8) and the friction block (7), thereby locking the position of the rocking rod (2); a sliding member (11) connected to the fixing seat (9) is rotatably arranged inside the base (1), a magnet (12) is provided at the rotation center of the sliding member (11), a module box (13) is fixedly connected to the side of the base (1), and a Hall sensor corresponding to the magnet (12) is provided inside the module box (13). A dust-proof sleeve (18) is sleeved outside the locking handle (5), and the lower end of the dust-proof sleeve (18) is fixed on the base (1). A second long hole (20) is provided in the middle of the friction block (7), a cavity (21) with an open lower end is provided on one side of the second long hole (20), and a positioning device is provided inside the cavity (21). The upper surface of the pressing plate (8) fits with the lower end of the friction block (7), limiting plates (22) are provided on both sides of the upper surface of the pressing plate (8), and a positioning groove (23) cooperating with the positioning device is provided on the upper surface of the pressing plate (8). The positioning device includes a slider (24) slidably arranged inside the cavity (21), the lower end of the slider (24) is concave and arc-shaped, a second pin (25) is provided at the lower end of the slider (24), the second pin (25) is horizontally placed in an arc-shaped groove, and when the rocking rod (2) is in the middle position, the second pin (25) enters the positioning groove (23) of the pressing plate (8).

2. The friction-locked electric control handle according to claim 1, characterized in that, An installation seat (14) is provided on the base (1), a first long hole (15) is opened on the installation seat (14), the limiting hole (6) is located above the first long hole (15), the rocking rod (2) passes through the first long hole (15), a rotating shaft (16) is fixed on the rocking rod (2), and the rotating shaft (16) and the installation seat (14) are connected by a first pin (17) to form a structure in which the rocking rod (2) is rotatably connected to the base (1).

3. A friction-locked electric control handle according to claim 1, characterized in that, A second spring (19) is provided between the upper cover (3) and the lower cover (4), and the second spring (19) pushes the lower cover (4) downward so that the locking handle (5) enters the limiting hole (6).

4. A friction-locked electric control handle according to claim 1, characterized in that, A third spring (26) is provided above the slider (24).

5. A friction-locked electric control handle according to claim 1, characterized in that, A long groove is opened below the sliding member (11), and one end of the fixing seat (9) is inserted into the long groove.

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