CN113598812A

CN113598812A - Parallel crank slider type support sleeve mechanism

Info

Publication number: CN113598812A
Application number: CN202110725308.2A
Authority: CN
Inventors: 陈延伟; 刘万熙; 马瀚; 孔帅
Original assignee: Changchun University of Technology
Current assignee: Changchun University of Technology
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-11-05

Abstract

The invention discloses a parallel crank-slider type support mechanism, which belongs to the technical field of medical equipment, solves the problem of the spacer sleeve being opened, and is used for an ultrasonic probe spacer sleeve automatic support device. A parallel crank-slider type bracing mechanism includes a drive input part, a supporting structure and a bracing mechanism. The invention provides a parallel crank-slider type support mechanism. A stepping motor drives a main shaft to rotate, the main shaft drives a stepping motor reducer to run, the other end of the reducer is connected to a coupling, and the coupling and the turntable are leveled. The key connection is used to transmit motion and torque, and the turntable is connected by a flat-head slotted pin shaft to drive the parallel curved rods to move respectively. Under the movement of the stepping motor, the function of the support sleeve is realized. The invention has a simple structure, reduces the operation steps for medical personnel to manually open the isolation sleeve, and improves the work efficiency.

Description

Parallel crank slider type support sleeve mechanism

Technical Field

The invention relates to the technical field of medical instruments, in particular to a parallel crank block type supporting sleeve mechanism.

Background

With the rapid development of medical detection technology, ultrasonic inspection equipment has become one of the widely used medical instruments in inspection departments due to its advantages of wide inspection range, good effect, high speed, high sensitivity, simple structure, simple operation, and the like. However, during the ultrasound examination, medical staff use ultrasound probes that are not strictly sterilized to examine different patients, which is likely to cause cross-infection. At present, related enterprises produce the isolation sleeves for preventing cross infection, and due to the characteristics of soft texture and slightly smooth hand feeling of the isolation sleeves, medical staff are required to manually coat the isolation sleeves on the surfaces of ultrasonic probes, so that the workload is increased for the medical staff, the working efficiency is low, and the sleeve supporting mechanism suitable for the isolation sleeves of different models needs to be researched.

Disclosure of Invention

The invention aims to solve the defects existing in the background technology: the parallel crank-slider type spacer mechanism is provided, the spacer with soft texture is stretched to the size suitable for the surface of an ultrasonic probe, the step of manually stretching the spacer by medical staff is omitted, and the workload is reduced.

In order to achieve the above purpose, the invention provides the following technical scheme: a parallel slider-crank style looper mechanism comprising: a drive input part (1), a support structure (2) and a support sleeve action mechanism (3), wherein:

further, the drive input section (1) includes: the stepping motor (101), the stepping motor reducer (102), the stepping motor base (103), the coupler (104) and the stepped shaft (105), wherein the stepping motor (101) is connected with the stepping motor reducer (102) to realize the function of reducing the speed of the stepping motor (101); the stepping motor base (103) is connected with the stepping motor reducer (102) to realize the installation of the drive input part (1); two ends of the coupler (104) are respectively connected with the stepping motor reducer (102) and the stepped shaft (105) in the same axis, so that the function of inputting driving force is realized;

further, the support structure (2) comprises: the novel support structure comprises a U-shaped stepping motor mounting support (201), angle codes (202) and a support sleeve fixing plate (203), wherein the U-shaped stepping motor mounting support (201) is connected with a stepping motor base (103) through hexagon socket head screws, the support sleeve fixing plate (203) is symmetrically connected with the U-shaped stepping motor mounting support (201) through the angle codes (202) distributed on two sides, and the angle codes (202) play roles in stably supporting and connecting the support sleeve fixing plate (203);

further, the supporting sleeve actuating mechanism (3) comprises: the device comprises a turntable (301), a curved rod (302), a lower sliding block (303), a deviation sliding block (304), a flat-head slotted pin shaft (305), a stepped double-slot positioning cylindrical pin (306), a supporting sleeve claw (307), a supporting sleeve rectangular plate (308) and a travel switch (309).

Furthermore, the supporting sleeve rectangular plate (308) is connected with the U-shaped stepping motor mounting bracket (201) through an angle code (202), and four slide ways which are symmetrically arranged are arranged on the supporting sleeve rectangular plate (308); the sliding block consists of an offset sliding block (304) and a lower sliding block (303), and the sliding block can slide on the slide way; the four slide ways of the supporting sleeve rectangular plate (308) are matched with the slide blocks; in order to avoid the interference of the curved rods (302) on the turntable (301), the curved rods (302) on the adjacent sides are respectively connected on the upper surface and the lower surface of the turntable (301); a curved rod (302) on the upper surface of the turntable (301) is connected with the sliding block through a flat-head grooved pin shaft (305), so that the turntable (301) drives the sliding block to move; a curved rod (302) on the lower surface of the turntable (301) is matched with another adjacent slideway on the supporting sleeve rectangular plate (308) through a stepped double-groove positioning cylindrical pin (306); the front end of the sliding block is provided with an offset mounting hole to be connected with the four supporting claws (307), and when the four supporting claws (307) are folded, the four supporting claws (307) are driven by the supporting mechanism to move, so that the function of expanding the isolation sleeve (310) is realized.

Furthermore, the parallel crank block type support sleeve mechanism is characterized in that a stepping motor (102) of the drive input part (1) drives a main shaft to rotate, the main shaft drives a stepping motor reducer (102) to operate, the stepping motor reducer (102) drives the main shaft to rotate, the main shaft is connected with a turntable (301) through a coupler (104), the turntable (301) drives a crank rod (302) to move through a flat-head grooved pin shaft (305), meanwhile, the turntable (301) drives another crank rod (302) to rotate through a stepped double-groove positioning cylindrical pin (306), the crank rods (302) are respectively connected with sliding blocks on a support sleeve rectangular plate (308), the crank rods (302) drive the sliding blocks to reciprocate, and the crank rods (302) and the other crank rod (302) are connected to the support sleeve turntable (301) in a symmetrical mode.

Furthermore, the parallel crank block type support sleeve mechanism is characterized in that support sleeve claws (307) of the support sleeve action mechanism (3) are symmetrically arranged on the four slide blocks respectively, and the motion of the support sleeve mechanism is realized under the operation of the stepping motor (101).

Further, the parallel crank block type sleeve supporting mechanism is characterized in that a travel switch (309) is arranged on the surface of a sleeve supporting rectangular plate (308) of the sleeve supporting action mechanism, the travel switch (309) is used for controlling the movement travel of a sleeve supporting claw (307), when a sliding block provided with the sleeve supporting claw (307) touches the travel switch (309) arranged on the sleeve supporting rectangular plate (308), the sleeve supporting claw (307) stops moving, the isolating sleeve (310) is unfolded to a preset position, medical staff is waited to coat the isolating sleeve (310) on the surface of the ultrasonic probe, and after sleeve taking is finished, the sleeve supporting claw (307) returns to the initial position to wait for the next movement.

Furthermore, the parallel crank block type supporting sleeve mechanism is characterized in that the four crank rods (302) are curved, so that interference is avoided.

Compared with the prior art, the invention has the beneficial effects that: through the parallel crank block type sleeve opening mechanism, the isolating sleeves with different specifications can be moved and opened according to a preset track, so that the steps of manually opening the isolating sleeves by medical personnel are reduced, and the workload is reduced.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a parallel crank block type supporting sleeve mechanism.

Fig. 2 is a schematic diagram of a driving input part and a supporting structure of a parallel crank block type supporting sleeve mechanism.

FIG. 3 is a schematic diagram of a parallel slider-crank type sleeve-opening mechanism.

Fig. 4 is a schematic structural diagram of a sleeve action executing part of the parallel crank block type sleeve mechanism.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention. For a person skilled in the art, it is possible to derive other figures from these figures without inventive effort.

Referring to fig. 1 and 2, a parallel slider-crank type supporting sleeve mechanism includes: a drive input part 1, a supporting structure 2 and a supporting sleeve action mechanism 3. The drive input section 1 includes: the stepping motor 101 is connected with the stepping motor reducer 102 to realize the function of reducing the speed of the stepping motor 101; the stepping motor base 103 is connected with the stepping motor reducer 102 to realize the installation of the driving input part 1; two ends of the coupler 104 are respectively connected with the stepping motor reducer 102 and the stepped shaft 105 on the same axis, so that the function of inputting driving force is realized. The support structure 2 comprises: u type step motor installing support 201, angle sign indicating number 202 and brace cover fixed plate 203, U type step motor installing support 201 be connected through hexagon socket head cap screw with step motor base 103, brace cover fixed plate 203 carry out the symmetrical formula with U type step motor installing support 201 by the angle sign indicating number 202 that distributes in both sides and connect, the angle sign indicating number 202 that states play the effect of stable stay and connection brace cover fixed plate 203.

The above-mentioned brace actuating mechanism includes: the device comprises a rotary disc 301, a curved bar 302, a lower sliding block 303, an offset sliding block 304, a flat-head slotted pin shaft 305, a stepped double-slot positioning cylindrical pin 306, a supporting sleeve claw 307, a supporting sleeve rectangular plate 308 and a travel switch 309; the supporting sleeve rectangular plate 308 is connected with the U-shaped stepping motor mounting bracket 201 through the corner connector 202, and four symmetrically arranged slide ways are arranged on the supporting sleeve rectangular plate 308; the sliding block consists of an offset sliding block 304 and a lower sliding block 303, and the sliding block can slide on a slide way; the four slide ways of the supporting sleeve rectangular plate 308 are matched with the slide blocks; in order to avoid the interference of the curved rods 302 on the turntable 301, the curved rods 302 on the adjacent sides are respectively connected on the upper surface and the lower surface of the turntable 301; a curved rod 302 on the upper surface of the turntable 301 is connected with the sliding block through a flat-head grooved pin 305, so that the turntable 301 can move with the sliding block; the curved rod 302 on the lower surface of the turntable 301 is matched with another adjacent slide way on the supporting sleeve rectangular plate 308 through a stepped double-groove positioning cylindrical pin 306; the front end of the sliding block is provided with an offset mounting hole to be connected with the supporting sleeve claw 307, and when the four supporting sleeve claws 307 are folded, the function of expanding the isolation sleeve 310 is realized when the supporting sleeve mechanism drives the four supporting sleeve claws 307 to move.

The parallel crank block type support sleeve mechanism is characterized in that the stepping motor 102 of the drive input part 1 drives the main shaft to rotate, the main shaft drives the stepping motor reducer 102 to rotate, the stepping motor reducer 102 drives the main shaft to rotate, the main shaft is connected with the rotary table 301 through the coupler 104, the rotary table 301 drives the crank rod 302 to move through the flat-end grooved pin shaft 305, meanwhile, the rotary table 301 drives the other crank rod 302 to rotate through the stepped double-groove positioning cylindrical pin 306, the crank rod 302 is respectively connected with the sliding blocks on the support sleeve rectangular plate 308, the crank rod 302 drives the sliding blocks to reciprocate, and the crank rod 302 and the other crank rod 302 are connected to the support sleeve rotary table 301 in a symmetrical mode. The sleeve supporting claws 307 of the sleeve supporting actuating mechanism 3 are symmetrically arranged on the four sliding blocks respectively, and the movement of the sleeve supporting mechanism is realized under the operation of the stepping motor 101. The surface of a supporting sleeve rectangular plate 308 of the supporting sleeve actuating mechanism is provided with a travel switch 309, the travel switch 309 is used for controlling the movement travel of a supporting sleeve claw 307, when a sliding block provided with the supporting sleeve claw 307 touches the travel switch 309 arranged on the supporting sleeve rectangular plate 308, the supporting sleeve claw 307 stops moving, an isolation sleeve 310 is expanded to a preset position, medical staff is waited to coat the isolation sleeve 310 on the surface of the ultrasonic probe, and after sleeve taking is finished, the supporting sleeve claw 307 returns to the initial position to wait for the next movement; the four curved bars 302 are curved in order to avoid interference.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A parallel crank-slider type support mechanism, characterized in that it comprises: a drive input part (1), a support structure (2), and a support mechanism (3); wherein:

The drive input part (1) includes: a stepping motor (101), a stepping motor reducer (102), a stepping motor base (103), a coupling (104) and a stepped shaft (105), the The stepper motor (101) is connected with the stepper motor reducer (102) to realize the function of deceleration of the stepper motor (101); the stepper motor base (103) is connected with the stepper motor reducer (102), The installation of the drive input part (1) is realized; the two ends of the coupling (104) are respectively connected with the stepping motor reducer (102) and the stepped shaft (105) on the same axis, so as to realize the function of input driving force;

The support structure (2) includes: a U-shaped stepping motor mounting bracket (201), a corner code (202) and a support sleeve fixing plate (203), and the U-shaped stepping motor mounting bracket (201) is connected to the stepper. The motor base (103) is connected by a cup head socket head cap screw, and the support sleeve fixing plate (203) and the U-shaped stepping motor mounting bracket (201) are symmetrically formed by the angle codes (202) distributed on both sides Connection, the said corner code (202) plays the role of stably supporting and connecting the bracket fixing plate (203);

The support sleeve action mechanism (3) includes: a turntable (301), a curved rod (302), a lower slider (303), an offset slider (304), a flat-head grooved pin (305), a stepped double The slot positioning cylindrical pin (306), the support claw (307), the support rectangular plate (308), the travel switch (309) and the isolation sleeve (310); the support rectangular plate (308) passes through the corner code (202) ) is connected with the U-shaped stepper motor mounting bracket (201), and the rectangular plate (308) of the support sleeve is provided with four slideways arranged symmetrically; A block (303) is formed, and the slider can slide on the slideway; the four slideways of the rectangular plate (308) of the support sleeve cooperate with the slider; in order to avoid the turntable (301) bending the rod (302) ) interfere, and the curved rods (302) on the adjacent side are connected on the upper and lower surfaces of the turntable (301) respectively; Connect with the slider to realize the movement of the turntable (301) with the slider; the curved rod (302) on the lower surface of the turntable (301) locates the cylindrical pin (306) and the support rectangular plate (308) through the stepped double grooves The sliding block has an offset mounting hole at the front end to connect with the support claw (307). When the four support claw (307) is folded, the support sleeve mechanism The four supporting collets (307) are driven to move to realize the function of opening the isolation sleeve (310).

2. A parallel crank-slider type support mechanism according to claim 1, characterized in that the stepping motor (101) of the drive input part (1) drives the main shaft to rotate, and the main shaft drives the stepping motor to decelerate The speed reducer (102) runs, the stepping motor reducer (102) drives the main shaft to rotate, the main shaft is connected to the turntable (301) through the coupling (104), and the turntable (301) drives the crank rod (305) through the flat grooved pin shaft (305). 302) moves, and at the same time the turntable (301) drives another curved rod (302) to rotate through the stepped double-slot positioning cylindrical pin (306), and the curved rod (302) is respectively connected with the sliding block on the rectangular plate (308) of the support sleeve. For connection, the slider (302) is driven to reciprocate by the curved rod (302), and the curved rod (302) and another curved rod (302) are symmetrically connected to the support sleeve turntable (301).

3 . The parallel crank-slider type support mechanism according to claim 1 , wherein the support claws ( 307 ) of the support action mechanism ( 3 ) are symmetrically installed on four slides. 4 . On the block, under the operation of the stepping motor (101), the movement of the support mechanism is realized.

4. A parallel crank-slider type support mechanism according to claim 1, characterized in that, a travel switch (309) is provided on the surface of the support rectangular plate (308) of the support action mechanism, and the travel switch is used. (309) Control the movement stroke of the support claw (307), when the slider on which the support claw (307) is installed touches the travel switch (309) installed on the support sleeve rectangular plate (308), the support claw (307) ) stops the movement, the isolation sleeve (310) is stretched to a predetermined position, and waits for the medical staff to wrap the isolation sleeve (310) on the surface of the ultrasonic probe. sports.

5 . The parallel crank-slider type support mechanism according to claim 1 , wherein the four crank rods ( 302 ) are curved in order to avoid interference. 6 .