CN216823651U

CN216823651U - Clamping fixer with electrically driven free arm

Info

Publication number: CN216823651U
Application number: CN202123436739.1U
Authority: CN
Inventors: 陈骅
Original assignee: Jiangsu Zhengfeng Medical Technology Co ltd
Current assignee: Jiangsu Zhengfeng Medical Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-28
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to a clamping fixer with electrically driven free arm, which comprises a clamp holder, a control connector, a free arm and a host from top to bottom, wherein the host is internally provided with a motor, the output end of the motor is connected with a worm through a gear set, the upper part of the worm is engaged and connected with a worm wheel in a transmission way, and the worm wheel is fixedly connected with a flexible silk thread through a connecting piece; the free arm is established ties by a plurality of universal ball mechanisms of cavity and is formed, the one end of free arm is fixed on the host computer, and the other end is fixed control connector is last, flexible silk thread run through in the free arm inside and with control connector connects, the utility model discloses change the drive form of host computer into by pneumatics electronically, solve completely because the produced risk of atmospheric pressure unstability, added worm gear's structure moreover, even can realize self-locking function under the condition of proruption outage, can keep original clamping state, it is very safe.

Description

Clamping fixer with electrically driven free arm

Technical Field

The utility model belongs to the technical field of apparatus centre gripping equipment technique and specifically relates to a centre gripping fixer with electricity drives free arm is applicable to medical treatment operation etc..

Background

As is well known, a plurality of instruments are generally used in the process of medical operation at present, most of the instruments are held by doctors at present, and some instruments need to be fixed by using a clamp holder, so that a stable auxiliary function can be achieved, and misoperation caused by manual long-time hand-held fatigue can be avoided. However, in the prior art, a clamp with a free arm structure, such as the clamp disclosed in the publication No. 202110214631.3, is driven by air pressure, and during actual use, the air pressure is often lower than the preset air pressure, which may cause the risk of falling of the clamped object, and thus needs to be improved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: to address the problems with the background art discussed above, an improved clamping fixture having an electrically driven free arm is provided.

The utility model provides a technical scheme that its technical problem adopted is: a clamping fixer with an electrically-driven free arm comprises a clamp holder, a control connector, a free arm and a host from top to bottom, wherein a motor is arranged in the host, the output end of the motor is connected with a worm through a gear set, a worm wheel is in meshing transmission connection with the upper part of the worm, and a flexible silk thread is fixedly connected to the worm wheel through a connecting piece; the free arm is formed by connecting a plurality of hollow universal ball mechanisms in series, one end of the free arm is fixed on the host, the other end of the free arm is fixed on the control connector, and the flexible silk thread penetrates through the interior of the free arm and is connected with the control connector; the clamp holder is a first jaw clamp with an opening, a rotary driving lever is connected to the clamp holder through threads, a moving block is arranged at the end of the rotary driving lever, and the moving block is controlled to advance and retreat by adjusting the rotary driving lever so as to realize clamping and loosening.

The outer diameter of the universal ball mechanism is larger than the inner diameter, so that the universal ball section can be better self-locked in a state that the flexible silk thread is tightened; under the state that the flexible silk thread is relaxed, the universal ball can be more quickly loosened, thereby achieving the purpose of flexible movement or stable fixation of the free arm.

The transmission structure of the worm gear and the worm has a self-locking function, and the flexible silk thread is effectively tightened even if the power supply function fails in a tightening state, so that the free arm cannot fall off.

Furthermore, the motor of the utility model is installed in the host machine through a motor fixing block, and the motor fixing block is also provided with a control panel electrically connected with the motor;

furthermore, one end of the worm of the utility model is connected with the gear set, and the other end is rotationally connected with the limiting block;

through adopting above-mentioned technical scheme, the fixed spacing of worm is more stable firm.

Furthermore, the control connector of the present invention comprises a housing, wherein a key device electrically connected to the control board is installed in the housing, and the key device is encapsulated by a cover plate;

through adopting above-mentioned technical scheme, control more handy, convenient, thereby control the motor positive and negative rotation through button device and tighten up or loosen the universal ball degree of freedom of adjustment of flexible silk thread elasticity.

Further, the one end of shell is provided with the spliced pole of being connected with the holder, and the other end is provided with the fixed axle of being connected with flexible silk thread, free arm.

The utility model has the advantages that: the defects in the background technology are overcome, and the method has the following advantages:

1. the utility model discloses change the drive form of host computer into electronic by pneumatics, solved completely because the produced risk of atmospheric pressure unstability, added worm gear's structure moreover, even also can realize self-locking function under the condition of proruption outage, can keep original clamping state, very safety.

2. The jaw clamp is adopted, no hole is needed to be broken when the aseptic bag is installed, and absolutely aseptic instrument clamping can be realized.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the main frame of the present invention;

FIG. 3 is a schematic structural view of the clamp holder of the present invention;

fig. 4 is a schematic structural diagram of the control connector of the present invention;

fig. 5 is a partial cross-sectional view of a free arm of the present invention.

In the figure: 1. the automatic control device comprises a holder, 11 a rotary deflector rod, 12 a moving block, 2 a control connector, 21 a shell, 22 a key device, 23 a cover plate, 24 connecting columns, 25 fixed shafts, 3 free arms, 4 a main machine, 41 a motor, 42 gear sets, 43 worms, 44 worm wheels, 45 flexible silk threads, 46 motor fixing blocks, 47 control plates and 48 limiting blocks.

Detailed Description

The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The clamping fixer with the electrically-driven free arm as shown in fig. 1 to 5 comprises a clamp 1, a control connector 2, a free arm 3 and a main machine 4 from top to bottom, wherein a motor 41 is arranged in the main machine 4, the output end of the motor 41 is connected with a worm 43 through a gear set 42, a worm wheel 44 is connected above the worm 43 in a meshing transmission manner, and a flexible silk thread 45 is fixedly connected to the worm wheel 44 through a connecting piece; the free arm 3 is formed by connecting a plurality of hollow universal ball mechanisms in series, one end of the free arm 3 is fixed on the host 4, the other end of the free arm 3 is fixed on the control connector 2, and the flexible silk thread 45 penetrates through the inside of the free arm 3 and is connected with the control connector 2; the clamp holder 1 is a jaw clamp with an opening, a rotary driving lever 11 is connected to the clamp holder 1 through threads, and a moving block 12 is arranged at the end of the rotary driving lever 11.

The motor 41 is installed in the host 4 through a motor fixing block 46, and a control board 47 electrically connected with the motor 41 is further arranged on the motor fixing block 46; one end of the worm 43 is connected with the gear set 42, and the other end is rotatably connected with the limiting block 48;

the control connector 2 comprises a shell 21, wherein a key device 22 electrically connected with the control board 47 is installed in the shell 21, and the key device 22 is encapsulated by a cover plate 23; one end of the shell 21 is provided with a connecting column 24 connected with the clamper 1, and the other end is provided with a fixed shaft 25 connected with the flexible silk thread 45 and the free arm 3.

The working process is as follows: the key device 22 is pressed, the motor 41 works through the control panel 47 by a starting instruction, the output end of the motor 41 drives the worm 43 to rotate through the gear set 42, the worm 43 drives the worm wheel 44 to rotate, the worm wheel 44 drives the flexible silk thread 45 to be tensioned, all universal ball mechanism joints of the free arm 3 are tightened at the moment, the universal ball mechanism joints cannot be bent by people, and the surgical instrument can be clamped on the clamp holder 1 according to requirements; when the position or the angle of the free arm needs to be adjusted, the key device 22 is pressed again, the motor 41 rotates reversely, the worm wheel 44 and the worm 43 move reversely, so that the flexible silk thread 45 is loosened, the universal ball mechanism joints of the free arm 3 are loosened, and the free arm can be freely moved manually.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. Clamping fixture with electrically driven free arm, comprising from top to bottom a clamp (1), a control connector (2), a free arm (3) and a main machine (4), characterized in that: a motor (41) is arranged in the main machine (4), the output end of the motor (41) is connected with a worm (43) through a gear set (42), a worm wheel (44) is connected above the worm (43) in a meshing transmission manner, and a flexible silk thread (45) is fixedly connected to the worm wheel (44) through a connecting piece;

the free arm (3) is formed by connecting a plurality of hollow universal ball mechanisms in series, one end of the free arm (3) is fixed on the host (4), the other end of the free arm is fixed on the control connector (2), and the flexible silk thread (45) penetrates through the inside of the free arm (3) and is connected with the control connector (2);

the clamp holder (1) is a jaw clamp with an opening, a rotary driving lever (11) is connected to the clamp holder (1) through threads, and a moving block (12) is arranged at the end of the rotary driving lever (11).

2. A clamping fixture having an electrically driven free arm as defined in claim 1, wherein: the motor (41) is installed in the host (4) through a motor fixing block (46), and a control board (47) electrically connected with the motor (41) is further arranged on the motor fixing block (46).

3. A clamping fixture having an electrically driven free arm as defined in claim 1, wherein: one end of the worm (43) is connected with the gear set (42), and the other end of the worm is rotatably connected to the limiting block (48).

4. A clamping fixture having an electrically driven free arm as defined in claim 2, wherein: the control connector (2) comprises a shell (21), a key device (22) electrically connected with the control board (47) is installed in the shell (21), and the key device (22) is packaged through a cover plate (23).

5. A clamping fixture having an electrically driven free arm as defined in claim 4, wherein: one end of the shell (21) is provided with a connecting column (24) connected with the clamper (1), and the other end is provided with a fixed shaft (25) connected with the flexible silk thread (45) and the free arm (3).