CN217430030U - Robotic arm, high frequency digital EEG machine, event potential system - Google Patents

Abstract

The utility model discloses a mechanical arm, a high-frequency digital electroencephalograph and an event potential system. The arm includes: the first support arm is arranged on the fixing mechanism; one end of the second support arm is connected with the first support arm through a damping mechanism, and the damping mechanism enables the second support arm to easily rotate relative to the first support arm; and one end of the third support arm is connected with the other end of the second support arm, and the third support arm can rotate relative to the second support arm. The utility model discloses a damping mechanism can realize the holistic angle modulation of second support arm and third support arm, when clockwise and anticlockwise rotation, all can easily operate, promotes user's experience and feels.

Description

Robotic arm, high frequency digital EEG machine, event potential system

technical field

The utility model relates to the technical field of medical equipment, in particular to a mechanical arm, a high-frequency digital electroencephalography machine and an event potential system.

Background technique

Robotic arms, such as ventilator arms, are devices that assist patients with medical equipment.

For example, a Chinese patent document with publication number CN209645589U discloses a medical ventilator support arm with joint damping, including: three turntable assemblies, each turntable assembly includes two turntables, a rotating shaft, a stainless steel sheet and two friction sheets The two turntables are connected by a rotating shaft. The stainless steel sheet and the two friction sheets are respectively sleeved on the side wall of the rotating shaft, and the stainless steel sheet is arranged between the two turntables. The two support tubes are respectively connected with the first turntable assembly and the second turntable assembly at both ends, and the two ends of the second support tube are respectively connected with the second turntable assembly and the third turntable assembly. Turntable assembly connection. In this solution, two friction plates are arranged at the turntable assembly, and the two friction plates increase the resistance of the turntable assembly to rotate to support the ventilator accessories on the support arm.

However, this solution still has the following shortcomings: (1) The damping structure has a poor sense of use, and it is convenient to rotate clockwise, but it is very laborious to rotate counterclockwise; (2) The front end of the arm adopts a hook, which can be used as an intelligent pendant, and has a single function; (3) The wiring is arranged outside the support arm, which affects the appearance.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.

Therefore, the utility model provides a mechanical arm, a high-frequency digital electroencephalography machine, and an event potential system, which can flexibly adjust the rotation angle of the support arm, and the operation is more labor-saving.

The technical solution adopted by the utility model to solve the technical problem is: a mechanical arm, comprising:

A fixing mechanism, and a first support arm, the first support arm is mounted on the fixing mechanism; a second support arm, one end of the second support arm is connected with the first support arm through the damping mechanism, so The damping mechanism enables the second support arm to easily rotate relative to the first support arm; the third support arm, one end of the third support arm is connected with the other end of the second support arm, The third arm is rotatable relative to the second arm. The utility model can realize the integral angle adjustment of the second support arm and the third support arm through the damping mechanism, and can be easily operated both clockwise and counterclockwise.

In one embodiment, the mechanical arm further includes: a connecting mechanism, the connecting mechanism is connected with the other end of the third support arm.

In one embodiment, the damping mechanism includes:

a rotating shaft, one end of the rotating shaft is connected with the first support arm, and the other end of the rotating shaft is connected with the second support arm;

A torsion spring, the torsion spring is mounted on the second support arm, and the rotating shaft passes through the torsion spring.

In one embodiment, the damping mechanism further includes:

a shaft sleeve, the shaft sleeve is connected with the first support arm, and the shaft sleeve is sleeved on the rotating shaft;

The gasket is sleeved on the rotating shaft, and the gasket is located on the side of the shaft sleeve away from the second support arm.

In one embodiment, the end of the second support arm is provided with a first fixing cover, and the side of the first fixing cover facing the first support arm is provided with a protruding portion, and the protruding portion is on the A first through hole is opened.

In one embodiment, the rotating shaft penetrates through the first through hole, and one end of the rotating shaft is connected to the first fixing cover.

In one embodiment, the torsion spring is sleeved on the outer peripheral surface of the protruding portion.

In one embodiment, one end of the first support arm is provided with a second fixing cover, a side of the second fixing cover close to the second support arm is provided with a limiting portion, and the shaft sleeve is installed on the on the limit.

In one embodiment, the securing mechanism includes:

base, and

A fixing block is installed on the base, and the first support arm is connected with the fixing block.

The utility model also provides a high-frequency digital EEG machine, which comprises the above-mentioned mechanical arm, and is adapted to a flash stimulator of the high-frequency digital EEG machine through an adapter.

The utility model also provides an event potential system including the above-mentioned mechanical arm, and the flash stimulator of the event potential system is adapted to the event potential system through an adapter.

The beneficial effect of the present utility model is,

The utility model can realize the integral angle adjustment of the second support arm and the third support arm through the damping mechanism, and can be easily operated both clockwise and counterclockwise. When the second arm rotates counterclockwise, the force generated by the torsion spring can counteract the gravity of the entire robotic arm and the equipment, so that the second arm can be easily operated when it rotates counterclockwise, without much effort.

Description of drawings

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

FIG. 1 is a schematic structural diagram of the mechanical arm of the present invention.

FIG. 2 is a schematic structural diagram of the connecting mechanism of the present invention.

3 is a cross-sectional view of the damping mechanism of the present invention.

4 is a cross-sectional perspective view of the damping mechanism of the present invention.

FIG. 5 is a schematic structural diagram of the fixing mechanism of the present invention.

In the figure: 1. Fixing mechanism; 2. First arm; 3. Second arm; 4. Damping mechanism; 5. Third arm; 6. Connecting mechanism; 7. Nut; 8. Decorative cover; 11. base; 12, fixing block; 21, second fixing cover; 22, limiting part; 211, second annular side wall; 31, first fixing cover; 32, protruding part; 33, first through hole; 311, 312, the first annular side wall; 41, the rotating shaft; 42, the torsion spring; 43, the shaft sleeve; 44, the gasket; 61, the first connector; 62, the second connector; 63, the third connection pieces.

Detailed ways

The present utility model will now be described in further detail in conjunction with the accompanying drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial direction", "circumferential direction", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying the indicated device. Or the elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, features delimited with "first", "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

As shown in Figures 1 to 5, a mechanical arm provided by the present invention includes: a fixing mechanism 1, a first support arm 2, a second support arm 3 and a third support arm 5. The first support arm 2 is installed on the On the fixing mechanism 1, one end of the second support arm 3 is connected with the first support arm 2 through the damping mechanism 4, the second support arm 3 can easily rotate relative to the first support arm 2, and one end of the third support arm 5 Connected to the other end of the second support arm 3 , the third support arm 5 can rotate relative to the second support arm 3 . The present invention can realize the overall angle adjustment of the second support arm 3 and the third support arm 5 through the damping mechanism 4, and can be easily operated both clockwise and counterclockwise.

According to an embodiment of the present invention, see FIG. 2 , the robotic arm may further include a connection mechanism 6 , and the connection mechanism 6 is connected with the other end of the third support arm 5 . The connection mechanism 6 can be customized according to different devices, so as to realize the diversification of connection functions. Specifically, the connecting mechanism 6 includes a first connecting member 61, a second connecting member 62 and a third connecting member 63. The first connecting member 61 is rotatably connected to the other end of the third support arm 5, and the second connecting member 62 is connected to the first connecting member 62. The connecting member 61 is rotatably connected, the third connecting member 63 is detachably connected with the second connecting member 62, and the third connecting member 63 can be customized according to the connecting structure of different equipments, so as to realize the installation structure of the robot arm suitable for different equipments.

According to an embodiment of the present invention, see FIGS. 3-4 , the damping mechanism 4 includes a rotating shaft 41 and a torsion spring 42 , one end of the rotating shaft 41 is connected with the first support arm 2 , and the other end of the rotating shaft 41 is connected with the second support arm 3 are connected, the torsion spring 42 is installed on the first support arm 2 , and the rotating shaft 41 passes through the torsion spring 42 . The damping mechanism 4 also includes a shaft sleeve 43 and a washer 44, the shaft sleeve 43 is connected with the second support arm 3, the shaft sleeve 43 is sleeved on the rotating shaft 41, the washer 44 is sleeved on the rotating shaft 41, and the washer 44 is located in the rotating shaft 41. The shaft sleeve 43 is away from the side of the second support arm 3 . Specifically, one end of the rotating shaft 41 is fixedly connected with the second support arm 3 , and the other end of the rotating shaft 41 is connected with the first support arm 2 , and the second support arm 3 can rotate relative to the first support arm 2 . The rotating shaft 41 can be, for example, a screw, one end is fixed on the second support arm 3 , and the other end is threadedly connected to the nut 7 through the first support arm 2 . Specifically, the torsion spring 42 is made of, for example, a piano steel wire, and the number of turns and diameter of the torsion spring 42 are subject to being able to be installed between the first support arm 2 and the second support arm 3 . For example, the number of turns of the torsion spring 42 may be three turns with a diameter of 3 mm. When the second arm 3 rotates counterclockwise, the force generated by the torsion spring 42 can offset the gravity of the entire mechanical arm and the equipment, so that the second arm 3 can be easily operated when it rotates counterclockwise, and it will not be very laborious . In other words, in the damping structure of the prior art, when the second support arm 3 rotates counterclockwise (ie, when the second support arm 3 is lifted), it needs to overcome the force twice the self-weight of the entire mechanical arm and the equipment, and the rotation is very difficult, resulting in Inefficiency at work.

According to an embodiment of the present invention, the end of the second support arm 3 is provided with a first fixing cover 31 , and the side of the first fixing cover 31 facing the first support arm 2 is provided with a raised portion 32 , and the raised portion 32 A first through hole 33 is formed thereon. The rotating shaft 41 penetrates through the first through hole 33 , and one end of the rotating shaft 41 is connected with the first fixing cover 31 . Specifically, the first fixed cover 31 includes a first bottom plate 311 and a first annular side wall 312, and the first annular side wall 312 is fixedly connected to the first bottom plate 311. For example, the first annular side wall 312 and the first bottom plate 311 may "Concave" shape. The raised portion 32 is disposed in the middle of the first base plate 311 , the raised portion 32 extends toward the direction of the first support arm 2 , the first through hole 33 penetrates through the raised portion 32 and the first base plate 311 , and the rotating shaft 41 can pass through the first support arm 2 . Through hole 33 . The torsion spring 42 can be sleeved on the outer peripheral surface of the protruding portion 32 . One end of the rotating shaft 41 is fixedly connected with the first bottom plate 311 . In other words, when the first fixing cover 31 rotates, the rotating shaft 41 can rotate together with the first fixing cover 31 .

According to an embodiment of the present invention, one end of the first support arm 2 is provided with a second fixing cover 21 , a side of the second fixing cover 21 close to the second support arm 3 is provided with a limiting portion 22 , and the shaft sleeve 43 is mounted on the limiting portion 22 . on part 22. Specifically, the second fixing cover 21 includes a second annular side wall 211 , the limiting portion 22 is disposed on the inner side of the second annular side wall 211 , and the limiting portion 22 is located on the second annular side wall 211 close to the second support arm 3 . one end. The shaft sleeve 43 can be installed on the limiting part 22, for example, the shaft sleeve 43 can be I-shaped, and the limiting part 22 can be embedded between the upper end and the lower end of the shaft sleeve 43 to limit the shaft sleeve 43. support. The washer 44 is located between the shaft sleeve 43 and the nut 7, and the nut 7 can limit the washer 44, and the washer 44 is, for example, a damping washer. The inner diameter of the second annular side wall 211 is larger than the outer diameter of the nut 7 , so that the nut 7 can follow the rotation shaft 41 to rotate. A decorative cover 8 can be provided on both the first fixed cover 31 and the second fixed cover 21, which can hide the internal structure and be more beautiful.

When the second support arm 3 and the first support arm 2 are installed together, the end of the first annular side wall 312 and the end of the second annular side wall 211 abut each other, but do not hinder the first annular side wall 312 and the end of the second annular side wall 211. The second annular side walls 211 can rotate relative to each other, and the rotating shaft 41 simultaneously passes through the protruding portion 32 and the limiting portion 22 to connect the first fixing cover 31 and the second fixing cover 21 . At this time, a gap is left between the protruding portion 32 and the shaft sleeve 43 to avoid interference during rotation.

According to an embodiment of the present invention, see FIG. 5 , the fixing mechanism 1 includes a base 11 and a fixing block 12 , the fixing block 12 is installed on the base 11 , and the first support arm 2 is connected with the fixing block 12 . The base 11 is, for example, a square plate, a circular plate, etc., which has a certain area and can be installed on different devices. The fixed block 12 is embedded on the base 11 , and the first support arm 2 can be installed on the fixed block 12 through a shaft sleeve. Specifically, the length of the first support arm 2 is much smaller than the length of the second support arm 3, so that when the second support arm 3 is to be rotated, it can be more labor-saving and more stable. In the present invention, when the first support arm 2, the second support arm 3 and the third support arm 5 are in a straight line, the total length can reach 1.5m. By setting the damping mechanism 4, the second support arm 3 can be easily The damping member between the second support arm 3 and the third support arm 5 can use a common damping structure. In addition, the mechanical arm of the present invention adopts internal wiring, and the wires can pass through the inside of the first support arm 2, the second support arm 3 and the third support arm 5, which is more beautiful.

The working process of the present invention is that when the second support arm 3 is rotated clockwise, the rotating shaft 41 will rotate with the second support arm 3, and the raised portion 32 will rotate with the rotating shaft 41, thereby realizing angle adjustment. When the second support arm 3 is rotated counterclockwise, the rotating shaft 41 will rotate with the second support arm 3, and the raised portion 32 will rotate with the rotating shaft 41. At this time, the torsion spring 42 can generate a force to offset the entire mechanical arm and equipment. Due to gravity, the second arm 3 can be lifted more effortlessly, the operation is easier, and the experience is better.

The utility model also provides a high-frequency digital EEG machine or an event potential system, which includes the above-mentioned mechanical arm. For example, the robotic arm can be connected to a flash stimulator on either a high-frequency digital EEG machine or an event potential system through the screw hole on the connection mechanism 6, so as to realize the movement and rotation of the flash stimulator. Dead angle rotation; the flash stimulator is in the prior art, and different flash stimulators can be selected for different devices. Of course, the robotic arm can also be used as other medical equipment or a trolley, which is not limited here, and its adaptation method can refer to the above-mentioned connection method.

Taking the above ideal embodiment according to the present invention as inspiration, through the above description, relevant staff can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present utility model is not limited to the contents in the description, and the technical scope must be determined according to the scope of the claims.

Claims (10)

1. a mechanical arm, is characterized in that, comprises: the securing mechanism (1), and A first support arm (2), the first support arm (2) is mounted on the fixing mechanism (1); A second support arm (3), one end of the second support arm (3) is connected with the first support arm (2) through a damping mechanism (4), the damping mechanism (4) makes the second support arm (4) The support arm (3) can rotate relative to the first support arm (2); A third support arm (5), one end of the third support arm (5) is connected with the other end of the second support arm (3), and the third support arm (5) can be relative to the first support arm (5). The two arms (3) rotate. 2. The robotic arm of claim 1, further comprising: A connecting mechanism (6), the connecting mechanism (6) is connected with the other end of the third support arm (5). 3. The robotic arm according to claim 1, wherein the damping mechanism (4) comprises: a rotating shaft (41), one end of the rotating shaft (41) is connected with the first support arm (2), and the other end of the rotating shaft (41) is connected with the second support arm (3); A torsion spring (42), the torsion spring (42) is mounted on the second support arm (3), and the rotating shaft (41) passes through the torsion spring (42). 4. The robotic arm according to claim 3, wherein the damping mechanism (4) further comprises: a shaft sleeve (43), the shaft sleeve (43) is connected with the first support arm (2), and the shaft sleeve (43) is sleeved on the rotating shaft (41); A gasket (44), the gasket (44) is sleeved on the rotating shaft (41), and the gasket (44) is located on the shaft sleeve (43) away from the second support arm (3) side. 5 . The robotic arm according to claim 4 , wherein a first fixing cover ( 31 ) is provided at the end of the second arm ( 3 ), and the first fixing cover ( 31 ) faces the One side of the first support arm (2) is provided with a raised portion (32), and a first through hole (34) is formed on the raised portion (32). 6 . The robotic arm according to claim 5 , wherein the rotating shaft ( 41 ) penetrates the first through hole ( 34 ), and one end of the rotating shaft ( 41 ) is connected to the first fixing cover ( 31 ). 7 . ) are connected; the torsion spring (42) is sleeved on the outer peripheral surface of the raised portion (32). 7. The robotic arm according to claim 4, wherein one end of the first support arm (2) is provided with a second fixing cover (21), and the second fixing cover (21) is close to the second fixing cover (21) One side of the two arms (3) is provided with a limiting portion (22), and the shaft sleeve (43) is mounted on the limiting portion (22). 8. The robotic arm according to claim 1, wherein the fixing mechanism (1) comprises: base (11), and A fixing block (12), the fixing block (12) is mounted on the base (11), and the first support arm (2) is connected with the fixing block (12). 9. A high-frequency digital electroencephalography machine, characterized in that it comprises the robotic arm according to any one of claims 1-8. 10. An event potential system, characterized by comprising the robotic arm according to any one of claims 1-8.

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