CN113958830B - Portable multisection medical treatment support arm of quick auto-lock - Google Patents

Portable multisection medical treatment support arm of quick auto-lock Download PDF

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Publication number
CN113958830B
CN113958830B CN202111042814.8A CN202111042814A CN113958830B CN 113958830 B CN113958830 B CN 113958830B CN 202111042814 A CN202111042814 A CN 202111042814A CN 113958830 B CN113958830 B CN 113958830B
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CN
China
Prior art keywords
support arm
joint
locking
self
connecting rod
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Active
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CN202111042814.8A
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Chinese (zh)
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CN113958830A (en
Inventor
许长海
汪鹏
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Ruiding Industrial Technology Kunshan Co ltd
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Ruiding Industrial Technology Kunshan Co ltd
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Publication of CN113958830A publication Critical patent/CN113958830A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
    • F16M11/2035—Undercarriages with or without wheels comprising means allowing pivoting adjustment in more than one direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
    • F16M11/121—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction constituted of several dependent joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
    • F16M13/022—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle repositionable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/02—Locking means
    • F16M2200/021—Locking means for rotational movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/02—Locking means
    • F16M2200/021—Locking means for rotational movement
    • F16M2200/024—Locking means for rotational movement by positive interaction, e.g. male-female connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/04—Balancing means
    • F16M2200/041—Balancing means for balancing rotational movement of the head

Abstract

The invention provides a quick self-locking portable multi-section medical support arm, which can quickly lock a first joint and a second joint in a linkage manner by installing a linkage locking structure, so that the first joint and the second joint cannot rotate horizontally; the locking structure is arranged, so that the second support arm and the second joint can be quickly locked, and the second support arm cannot rotate up and down; by installing the no-load hovering self-locking structure, the second support arm and the radial rotary seat can be quickly locked, so that the second support arm and the radial rotary seat can be kept stable no matter whether a flat plate is loaded or not, sudden unbalance bouncing can not occur, and the no-load hovering self-locking of the whole medical support arm is realized; through the structural couple of installation in linkage locking, can collude lock second support arm, radial swivel mount and horizontal swivel mount when locking first joint and second joint, make the medical support arm can by firmly pinning in the transportation, can not loosen because of jolting and take off the damage.

Description

Portable multisection medical treatment support arm of quick auto-lock
Technical Field
The invention relates to the field of medical instruments, in particular to a medical support arm with high controllability.
Background
With the gradual lightweight of large-scale medical equipment, the platformization of desk-top equipment and the like, the demand of medical support arms as important instruments for fixing and adjusting flat-plate medical equipment is gradually increased. Most body types of medical support arms used for supporting flat medical equipment at present are small, the weight is light, and because the user demand under the different conditions is satisfied for a short time, the flat equipment fixed on the support arm requires convenient change, height, position and posture adjustment are flexible, and are fixed steady simultaneously, guarantee that good use is experienced.
To ensure more flexible adjustment of the tablet device, the medical boom is usually a multi-joint structure, and each joint of the boom can be adjusted up and down or left and right. The self-locking fixing mode of the support arm after the adjustment is finished, in the existing method, a rotary joint with damping is used, and the joint self-locking of the medical equipment is ensured by means of the damping at the joint; there is a manual tightening of each joint using a screw fastening or the like. However, with the joint with damping, it is easy to move due to an external force applied thereto by carelessly colliding the support arm; or because the damping of joint department diminishes and becomes flexible after using for a long time, influences the effect of auto-lock, in addition, also very easily because change dull and stereotyped equipment, the counter weight grow and the tenesmus removes. And use modes auto-lock such as screw-thread fastening, need to carry out manual tightening to every joint in proper order, the firm effect of its auto-lock receives user's strength size restriction, and moves the in-process pine of removal easily and take off. Therefore, the convenience and the stability of the joint self-locking structure of the existing medical support arm need to be further improved.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a quick self-locking portable medical support arm.
In order to achieve the purpose, the invention adopts the following technical scheme:
a portable multi-section medical support arm capable of fast self-locking comprises a first joint, a first support arm, a second joint, a second support arm, a radial rotating seat and a horizontal rotating seat which are sequentially connected end to end from bottom to top; the head end of the first support arm is mounted on the first joint, and the first support arm horizontally rotates relative to the first joint; the second joint is arranged at the tail end of the first support arm and rotates horizontally relative to the first support arm; the head end of the second support arm is arranged on the second joint, and the second support arm rotates up and down relative to the second joint; the radial rotary seat is mounted at the tail end of the second support arm and rotates up and down relative to the second support arm; the horizontal rotary seat is mounted on the radial rotary seat, and the horizontal rotary seat horizontally rotates relative to the radial rotary seat;
a linkage locking mechanism is installed in the first support arm, the first joint is provided with a first bolt and a first jack which are matched with each other, the second joint is provided with a second bolt and a second jack which are matched with each other, the linkage locking mechanism is connected with the first bolt and the second bolt, an interlocking handle is arranged on the linkage locking mechanism, and the interlocking handle is installed on the outer side of the first support arm; when the interlocking handle is screwed down, the linkage locking mechanism drives the first bolt and the second bolt to be respectively inserted into the first jack and the second jack, and the first joint and the second joint are locked;
a telescopic rod is arranged in the second support arm, and a locking mechanism is arranged at the head end of the telescopic rod and is installed in the second joint; when the locking mechanism is locked, the second support arm is fixed relative to the second joint and cannot rotate up and down;
and a no-load self-locking mechanism is arranged at the joint of the tail end of the second support arm and the radial rotary seat, and when the no-load self-locking mechanism is locked, the radial rotary seat is fixed relative to the second support arm and cannot rotate up and down.
Preferably, the linkage locking mechanism comprises an elastic locking block, a rotating disc, a first connecting rod, a transmission rod and a second connecting rod; the elastic locking block comprises a pin column, a spring and a locking boss, the top end of the pin column is fixed on the inner wall of the shell of the first support arm, the pin column is sleeved with the spring, the spring is installed at the top of the locking boss, and the spring contracts/extends along with the up/down movement of the locking boss; the bottom of the locking boss abuts against the rotating disc and is tangent to the circumferential side wall of the rotating disc; the side wall of the circumference of the rotating disc is respectively provided with a sunken locking notch and a movable notch, the circle center of the rotating disc is provided with the interlocking handle, and the interlocking handle is rotatably arranged outside the shell of the first support arm; one end of the first connecting rod is connected to the rotating disc, the other end of the first connecting rod is connected to the first bolt, and the first bolt is opposite to the first jack and is connected to the first jack in a pluggable clearance manner; one end of the transmission rod is installed on the rotating disc, the other end of the transmission rod is connected with the second connecting rod, one end of the second connecting rod is connected with the transmission rod, and the other end of the second connecting rod is connected with the second bolt.
Preferably, when the bottom of the locking boss is clamped in the movable notch, the first pin is retracted and located at the outer side of the first jack, the second pin is retracted and located at the outer side of the second jack, and both the first joint and the second joint can freely move; when the bottom of the locking boss is clamped and fixed in the locking notch, the first bolt is inserted into the first insertion hole, the second bolt is inserted into the second insertion hole, and the first joint and the second joint are both locked and cannot horizontally rotate.
Preferably, the second connecting rod is a V-shaped connecting rod, the inflection point of the second connecting rod is rotatably fixed on the inner side of the shell of the first support arm, when the transmission rod moves along with the rotation of the rotating disc, the transmission rod drives one end of the V-shaped connecting rod connected with the transmission rod to swing, and the V-shaped connecting rod rotates around the inflection point rotation center of the V-shaped connecting rod and drives the second bolt to move up and down.
Preferably, a hook is further fixedly mounted on the rotating disc, a first hook ring is arranged at the bottom end of the radial rotating seat, and a second hook ring is arranged at the bottom end of the horizontal rotating seat; when the bottom of the locking boss is clamped in the movable notch, the hook is laid down in the shell of the first support arm; when the bottom of the locking boss is clamped and fixed in the locking notch, the hook stands up and extends out of the first supporting arm and is used for hooking and locking the first hook ring and the second hook ring.
Preferably, the locking mechanism is located in a cavity formed by the second joint and the second support arm, and the locking mechanism comprises a limiting hole, a fixing hole, an adjusting screw and an adjusting nut; the limiting hole is positioned on the top surface of the second joint, the fixing hole is positioned on the bottom surface of the second joint and is opposite to the second joint, the adjusting screw penetrates through the limiting hole and is in threaded fit with the limiting hole, the adjusting nut is positioned between the limiting hole and the fixing hole and is in threaded fit with the adjusting screw, and one end of the telescopic rod can be fixed on the adjusting nut in a vertically rotating mode; screwing the adjusting screw downwards, wherein the adjusting screw penetrates through the fixing hole and is in threaded fit with the fixing hole, and the second support arm is locked relative to the second joint and cannot rotate up and down; and the adjusting screw is screwed upwards, the adjusting screw is suspended right above the fixing hole, and the second support arm can rotate up and down relative to the second joint.
Preferably, a pulley is installed at one end, opposite to the telescopic rod, of the adjusting nut, a groove parallel to the adjusting screw is formed in the second joint, the pulley is located in the groove, when the adjusting screw moves up and down, the adjusting nut moves up and down along with the adjusting screw, and the pulley abuts against the groove to roll up and down.
Preferably, the second support arm includes shell body and interior casing that are half enclosed structure, the shell body with the opening of interior casing is relative and composite installation forms hollow second support arm, interior casing with the head end of shell body rotationally connect respectively in the second joint, the shell body covers the outside of interior casing and with interior casing forms hollow support arm chamber, unloaded self-locking mechanism hookup radial swivel mount, shell body and interior casing, work as unloaded self-locking mechanism locks, radial swivel mount, shell body and interior casing all is locked tightly.
Preferably, the no-load self-locking mechanism comprises a connecting rotary column, an L-shaped connecting rod, a rotating pin and a self-locking handle; the axis of the connecting rotary column is parallel to the rotation axis of the radial rotary seat, and the connecting rotary column passes through the intersection of the outer shell and the radial rotary seat; the L-shaped connecting rod is installed on the connecting rotary column, the rotary pin is installed inside the inner shell and parallel to the connecting rotary column, a through hole is formed in the rotary pin, and the L-shaped connecting rod penetrates through the through hole and is in clearance fit with the rotary pin; the self-locking handle is installed on the side face of the connecting rotary column and located on the outer side of the outer shell, the self-locking handle is screwed down, and the connecting rotary column is pulled to be close to the self-locking handle.
Preferably, the self-locking handle is in threaded connection with the connecting rotary column.
Compared with the prior art, the invention has the beneficial effects that:
according to the multi-section medical support arm, the position of the support arm below is adjusted in a rotating mode in the horizontal plane, the height of the support arm above is adjusted in a radial up-and-down rotating mode, after the height and the position of a flat-plate device are adjusted, the postures of the flat-plate device such as the pitching angle and the like are adjusted through the radial rotary seat and the horizontal rotary seat, the flat-plate adjustment is more accurate, and the flat-plate device is more convenient to observe;
according to the multi-section medical support arm, the linkage locking mechanism is arranged, after the angle adjustment of the horizontal rotation of the first joint and the second joint is completed, the first joint and the second joint can be simultaneously linked and locked only by twisting the interlocking handle, so that the first joint and the second joint cannot horizontally rotate, the locking operation is quick and convenient, and the situations that the locking is complicated and the deformation and the displacement are caused by the dead weight of a flat panel device and the support arm can be effectively prevented; and the locking effect is fast and stable by adopting a locking mode of plugging and unplugging the bolt.
The invention relates to a multi-section medical support arm, which is provided with an idle self-locking mechanism, wherein a second support arm can rotate up and down around a second joint, the second support arm is a structure combining an inner shell and an outer shell, the inner shell and the outer shell are respectively connected to the second joint and a radial rotating seat, but the inner shell and the outer shell are not directly connected. When the second support arm rotates, the outer shell and the inner shell also move relatively, when the flat equipment is installed on the horizontal rotary seat, the front end of the support arm is in a force balance state due to the balance weight, and when the flat equipment is dismounted, the front end of the medical support arm without load can pop up due to unbalance. After the no-load self-locking mechanism is installed, the self-locking handle is screwed down, so that the outer shell, the inner shell and the radial rotary seat of the second support arm can be integrally locked, and no-load self-locking of the medical support arm is realized.
The multi-section medical support arm is also provided with the hook on the linkage locking mechanism, when the linkage locking mechanism is locked, the hook stands up and locks the radial rotary seat and the horizontal rotary seat, and the medical support arm is integrally locked, so that the medical support arm can be effectively prevented from being scattered and damaged due to bumping in the transportation process.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a portable multi-section medical support arm with a quick self-locking function;
FIG. 2 is an internal structure view of the medical support arm linkage locking mechanism in a free state;
FIG. 3 is an internal structure view of the medical support arm linkage locking mechanism in a locked state;
FIG. 4 is an internal structure view of the portable multi-joint medical boom in a free state;
FIG. 5 is a schematic diagram of a core structure of a linkage locking mechanism;
FIG. 6 is an internal structural view of a second arm;
fig. 7 is a schematic structural view of a second joint.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Please refer to fig. 1-7. As shown in fig. 1, the invention provides a portable multi-section medical support arm with a rapid self-locking function, which comprises a first joint 1, a first support arm 2, a second joint 3, a second support arm 4, a radial rotating seat 5 and a horizontal rotating seat 6 which are sequentially connected end to end from bottom to top; the head end of the first support arm 2 is arranged on the first joint 1, and the first support arm 2 horizontally rotates relative to the first joint 1; the second joint 3 is arranged at the tail end of the first support arm 2, and the second joint 3 horizontally rotates relative to the first support arm 2; the head end of the second support arm 4 is arranged on the second joint 3, and the second support arm 4 rotates up and down relative to the second joint 3; the radial rotary seat 5 is arranged at the tail end of the second support arm 4, and the radial rotary seat 5 rotates up and down relative to the second support arm 4; the horizontal rotary seat 6 is installed on the radial rotary seat 5, and the horizontal rotary seat 6 rotates horizontally relative to the radial rotary seat 5. The bottom of the first joint 1 is provided with a fixing clamp or a fixing seat for clamping the medical support arm at the bedside or the desk of a patient or placing the medical support arm on the desk, so that the overall stability of the medical support arm is ensured. The first arm 2 is connected with the first joint 1 and the second joint 3 and can rotate horizontally to adjust the horizontal position of the arm, and the second arm 4 can rotate up and down around the second joint 3 to adjust the height of the arm, so that the spatial position of the tablet device is determined. Radial swivel mount 5 and horizontal swivel mount 6 are used for adjusting the left and right deflection angle and the every single move gesture of dull and stereotyped equipment, can the quick adjustment to the most suitable information that medical personnel observed on the dull and stereotyped equipment of observation gesture convenience.
As shown in fig. 2, 3 and 5, a linkage locking mechanism 7 is installed in the first support arm 2, the first joint 1 is provided with a first bolt 71 and a first jack 72 which are matched with each other, the second joint 3 is provided with a second bolt 73 and a second jack 74 which are matched with each other, the linkage locking mechanism 7 is connected with the first bolt 71 and the second bolt 73, the linkage locking mechanism 7 is provided with an interlocking handle 75, and the interlocking handle 75 is installed at the outer side of the first support arm 2; when the interlocking handle 75 is screwed down, the linkage locking mechanism 7 drives the first bolt 71 and the second bolt 73 to be inserted into the first insertion hole 72 and the second insertion hole 74 respectively, so as to lock and fix the first joint 1 and the second joint 3.
The linkage locking mechanism 7 is arranged on the multi-section medical support arm, after the horizontal rotation angle of the medical support arm is adjusted, the first joint 1 and the second joint 3 can be quickly locked simultaneously only by screwing the interlocking handle 75, so that the medical support arm is prevented from continuously rotating horizontally, the operation is convenient and quick, the plugging and unplugging of the bolts in the two joints are controlled by one handle, the locking mode is simple, and the locking effect is excellent.
As shown in fig. 4 and 6, an expansion link 43 is arranged in the second support arm 4, a locking mechanism 8 is arranged at the head end of the expansion link 43, and the locking mechanism 8 is installed in the second joint 3; when the locking mechanism 8 is locked, the second support arm 4 is fixed relative to the second joint 3 and cannot rotate up and down. The second arm 4 rotates up and down relative to the second joint 3, and when the height is adjusted to a proper height, the second arm 4 needs to be locked to be stable in the position, so that the locking mechanism 8 is separately arranged.
As shown in fig. 4 and fig. 6, an idle self-locking mechanism 9 is disposed at a connection between the tail end of the second arm 4 and the radial rotation seat 5, and when the idle self-locking mechanism 9 is locked, the radial rotation seat 5 is fixed relative to the second arm 4 and cannot rotate up and down. After the no-load self-locking mechanism 9 is installed, the self-locking handle 94 is screwed, so that the outer shell 41, the inner shell 42 and the radial rotary seat 5 of the second support arm 4 can be locked and fixed integrally, and no-load self-locking of the medical support arm is realized.
As shown in fig. 2, 3, 4 and 5, in one embodiment, the linkage locking mechanism 7 includes an elastic locking block 76, a rotating disk 77, a first link 78, a transmission rod 70 and a second link 79; the elastic locking block 76 comprises a pin 761, a spring 762 and a locking boss 763, wherein the top end of the pin 761 is fixed on the inner wall of the shell of the first support arm 2, the pin 761 is sleeved with the spring 762, the spring 762 is installed at the top of the locking boss 763, and the spring 762 contracts/extends along with the up/down movement of the locking boss 763; the bottom of the locking boss 763 abuts against the rotating disk 77 and is tangential to the circumferential sidewall of the rotating disk 77; the circumferential side wall of the rotating disc 77 is respectively provided with a concave locking notch 771 and a concave movable notch 772, the center of the rotating disc 77 is provided with an interlocking handle 75, and the interlocking handle 75 is rotatably arranged outside the shell of the first support arm 2; one end of the first connecting rod 78 is connected to the rotating disc 77, the other end of the first connecting rod 78 is connected to the first plug 71, and the first plug 71 is opposite to the first jack 72 and is connected to the first jack 72 in a pluggable clearance manner; one end of the transmission rod 70 is mounted on the rotating disc 77, the other end of the transmission rod 70 is connected with the second link 79, one end of the second link 79 is connected with the transmission rod 70, and the other end of the second link 79 is connected with the second latch 73.
The interlocking handle 75 is used for driving the rotating disc 77 to rotate, the rotating disc 77 rotates to drive the first connecting rod 78 and the second connecting rod 79 to rotate along with the rotating disc, the first connecting rod 78 rotates to drive the first bolt 71 to move up and down, the second connecting rod 79 rotates to drive the second bolt 73 to move up and down, and the elastic locking block 76 is used for locking the rotating disc 77 under the condition of no external force driving to prevent the rotating disc from rotating and keeping the rotating disc 77 in a certain state. When the bottom of the locking boss 763 is clamped in the movable gap 772, the first plug 71 retracts and is located outside the first insertion hole 72, the second plug 73 retracts and is located outside the second insertion hole 74, and both the first joint 1 and the second joint 3 can move freely; when the bottom of the locking boss 763 is clamped in the locking notch 771, the first plug 71 is inserted into the first insertion hole 72, the second plug 73 is inserted into the second insertion hole 74, and the first joint 1 and the second joint 3 are locked and cannot rotate horizontally.
The above-mentioned linkage locking structural component is few, be located the inside of medical support arm, only interlock handle 75 is located the first arm 2 outside, additional occupation space does not, only need rotate interlock handle 75 during the use, and there are activity breach 772 and locking breach 771 assistance-localization real-time, when rotary disk 77 rotates activity breach 772 or locking breach 771, elasticity locking piece 76 is propped against in breach department under the effect that spring 762 extended, there is the rattle, and elasticity locking piece 76 climbs out from the breach during the rotation once more, need additionally exert the force and twist the spring 762 that interlock handle 75 was used for compressing in the elasticity locking piece 76, make it shift up.
In an embodiment, the second connecting rod 79 is a V-shaped connecting rod, the inflection point of the second connecting rod 79 is rotatably fixed inside the housing of the first arm 2, when the transmission rod 70 moves along with the rotation of the rotating disc 77, the transmission rod 70 drives one end of the V-shaped connecting rod connected with the transmission rod to swing, the V-shaped connecting rod rotates around the rotation center of its own inflection point and drives the second pin 73 to move up and down, so that the rotation of the rotating disc 77 is converted into the up-and-down translation of the second pin 73, the plugging and unplugging action of the second pin 73 is completed, and the structure is simple and reliable.
In one embodiment, the rotating disc 77 is further fixedly provided with a hook 101, the bottom end of the radial rotating seat 5 is provided with a first hook ring 51, and the bottom end of the horizontal rotating seat 6 is provided with a second hook ring 61; when the bottom of the locking boss 763 is clamped in the movable gap 772, the hook 101 is laid down in the housing of the first arm 2; when the bottom of the locking projection 763 is locked in the locking notch 771, the hook 101 stands up and extends out of the first arm 2 to hook and lock the first hook ring 51 and the second hook ring 61. Linkage locking mechanism 7 locks, and couple 101 stands up and hook and locks radial swivel mount 5 and horizontal swivel mount 6, and the medical support arm is whole all locked, can prevent effectively that jolt in the transportation leads to the medical support arm to scatter the damage.
As shown in fig. 4, 6 and 7, in an embodiment, the locking mechanism 8 is located in a cavity formed by the second joint 3 and the second arm 4, and the locking mechanism 8 includes a limiting hole 81, a fixing hole 82, an adjusting screw 83 and an adjusting nut 84; the limiting hole 81 is positioned on the top surface of the second joint 3, the fixing hole 82 is positioned on the bottom surface of the second joint 3 and is opposite to the second joint 3, the adjusting screw 83 penetrates through the limiting hole 81 and is in threaded fit with the limiting hole 81, the adjusting nut 84 is positioned between the limiting hole 81 and the fixing hole 82 and is in threaded fit with the adjusting screw 83, and one end of the telescopic rod 43 is fixed on the adjusting nut 84 in a manner of being capable of rotating up and down; an adjusting screw 83 is screwed downwards, the adjusting screw 83 passes through the fixing hole 82 and is in threaded fit with the fixing hole 82, and the second support arm 4 is locked relative to the second joint 3 and cannot rotate up and down; and an adjusting screw 83 is screwed upwards, the adjusting screw 83 is suspended right above the fixing hole 82, and the second support arm 4 can rotate up and down relative to the second joint 3. When the locking device is used, when the second support arm 4 is adjusted to a proper height up and down, the adjusting screw is screwed to penetrate through the fixing hole 82, the second support arm 4 is locked and cannot rotate up and down, the structure is simple, and the locking effect is good.
As shown in fig. 6 and 7, preferably, a pulley 85 is installed at one end of the adjusting nut 84 opposite to the telescopic rod 43, a groove 86 parallel to the adjusting screw 83 is formed in the second joint 3, the pulley 85 is located in the groove 86, when the adjusting screw 83 moves up and down, the adjusting nut 84 moves up and down along with the adjusting screw, and the pulley 85 rolls up and down in the groove 86, so that the up and down movement of the adjusting nut is more stable and smooth, and friction is reduced.
As shown in fig. 4 and 6, in an embodiment, the second arm 4 includes an outer shell 41 and an inner shell 42, which are both of a semi-enclosed structure, the openings of the outer shell 41 and the inner shell 42 are opposite and combined to form the hollow second arm 4, the head ends of the inner shell 42 and the outer shell 41 are respectively rotatably connected to the second joint 3, the outer shell 41 covers the outside of the inner shell 42 and forms a hollow arm cavity with the inner shell 42, the no-load self-locking mechanism 9 couples the radial rotation base 5, the outer shell 41 and the inner shell 42, and when the no-load self-locking mechanism 9 is locked, the radial rotation base 5, the outer shell 41 and the inner shell 42 are all locked.
The no-load self-locking mechanism 9 comprises a connecting rotary column 91, an L-shaped connecting rod 92, a rotary pin 93 and a self-locking handle 94; the axis of the connecting rotary column 91 is parallel to the rotation axis of the radial rotary seat 5, and the connecting rotary column 91 passes through the intersection of the outer shell 41 and the radial rotary seat 5; the L-shaped connecting rod 92 is arranged on the connecting rotary column 91, the rotating pin 93 is arranged in the inner shell 42 and is parallel to the connecting rotary column 91, a through hole is arranged on the rotating pin 93, and the L-shaped connecting rod 92 passes through the through hole and is in clearance fit with the rotating pin 93; a self-locking handle 94 is mounted on the side of the connecting pivot post 91 outside the outer housing 41, and the connecting pivot post 91 is pulled close to the self-locking handle 94 by tightening the self-locking handle 94.
When the second arm 4 rotates, the outer housing 41 and the inner housing 42 also move relatively, when the tablet device is mounted on the horizontal swivel base 6, the counterweight keeps the front end of the arm in a balanced state, and when the tablet device is dismounted, the empty front end of the medical arm can pop up due to unbalance. After the no-load self-locking mechanism 9 is installed, the self-locking handle 94 is screwed, so that the outer shell 41, the inner shell 42 and the radial rotary seat 5 of the second support arm 4 can be locked and fixed integrally, and no-load self-locking of the medical support arm is realized.
In one embodiment, the self-locking handle is connected with the connecting rotary column through threads, when the self-locking handle is rotated clockwise, the connecting rotary column is close to the self-locking handle, and the outer shell is clamped between the self-locking handle and the connecting rotary column. The auto-lock handle need play the pulling and connect the rotary column and with connect the rotary column clamping locking shell body's effect together, use threaded connection, the auto-lock handle is screwed up or is unscrewed and can both obtain fine control, easy operation can not loosen and take off.
According to the quick self-locking portable multi-section medical support arm, the first joint and the second joint can be quickly locked in a linkage manner by installing the linkage locking structure, so that the first joint and the second joint cannot rotate horizontally; the second support arm and the second joint can be quickly locked through installing the locking structure, so that the second support arm cannot rotate up and down; by installing the no-load hovering self-locking structure, the second support arm and the radial rotary seat can be quickly locked, so that the second support arm and the radial rotary seat can be kept stable no matter whether a flat plate is loaded or not, sudden unbalance bouncing can not occur, and the no-load hovering self-locking of the whole medical support arm is realized; through the couple of installation on linkage locking structure, can collude lock second support arm, radial swivel mount and horizontal swivel mount when locking first joint and second joint, make the medical support arm can firmly be pinned in the transportation, can not loosen because of jolting and take off the damage.
The multi-stage adjustable flat panel device is simple in structure and convenient to use, can stably support the flat panel device, accurately adjusts the position and the posture of the flat panel device in multiple stages, and facilitates observation of contents on the flat panel; the medical support arm is not only accurate in adjustment, but also rapid and convenient in locking.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that the invention be covered by the appended claims without departing from the spirit and scope of the invention.

Claims (9)

1. The utility model provides a portable multisection medical support arm of quick auto-lock which characterized in that: the device comprises a first joint, a first support arm, a second joint, a second support arm, a radial swivel base and a horizontal swivel base which are sequentially connected end to end from bottom to top; the head end of the first support arm is mounted on the first joint, and the first support arm horizontally rotates relative to the first joint; the second joint is arranged at the tail end of the first support arm and horizontally rotates relative to the first support arm; the head end of the second support arm is arranged on the second joint, and the second support arm rotates up and down relative to the second joint; the radial rotary seat is mounted at the tail end of the second support arm and rotates up and down relative to the second support arm; the horizontal rotary seat is mounted on the radial rotary seat, and the horizontal rotary seat horizontally rotates relative to the radial rotary seat;
a linkage locking mechanism is installed in the first support arm, the first joint is provided with a first bolt and a first jack which are matched with each other, the second joint is provided with a second bolt and a second jack which are matched with each other, the linkage locking mechanism is connected with the first bolt and the second bolt, an interlocking handle is arranged on the linkage locking mechanism, and the interlocking handle is installed on the outer side of the first support arm; when the interlocking handle is screwed down, the linkage locking mechanism drives the first bolt and the second bolt to be respectively inserted into the first jack and the second jack, and the first joint and the second joint are locked; the linkage locking mechanism comprises an elastic locking block, a rotating disc, a first connecting rod, a transmission rod and a second connecting rod; the elastic locking block comprises a pin column, a spring and a locking boss, the top end of the pin column is fixed on the inner wall of the shell of the first support arm, the pin column is sleeved with the spring, the spring is installed at the top of the locking boss, and the spring contracts/extends along with the up/down movement of the locking boss; the bottom of the locking boss abuts against the rotating disc and is tangent to the circumferential side wall of the rotating disc; the side wall of the circumference of the rotating disc is respectively provided with a sunken locking notch and a movable notch, the circle center of the rotating disc is provided with the interlocking handle, and the interlocking handle is rotatably arranged outside the shell of the first support arm; one end of the first connecting rod is connected to the rotating disc, the other end of the first connecting rod is connected to the first bolt, and the first bolt is opposite to the first jack and is connected to the first jack in a pluggable clearance manner; one end of the transmission rod is mounted on the rotating disc, the other end of the transmission rod is connected with the second connecting rod, one end of the second connecting rod is connected with the transmission rod, and the other end of the second connecting rod is connected with the second bolt;
a telescopic rod is arranged in the second support arm, a locking mechanism is arranged at the head end of the telescopic rod, and the locking mechanism is arranged in the second joint; when the locking mechanism is locked, the second support arm is fixed relative to the second joint and cannot rotate up and down;
and a no-load self-locking mechanism is arranged at the joint of the tail end of the second support arm and the radial rotary seat, and when the no-load self-locking mechanism is locked, the radial rotary seat is fixed relative to the second support arm and cannot rotate up and down.
2. The portable multi-linked medical boom of claim 1 that self-locks quickly, wherein: when the bottom of the locking boss is clamped in the movable notch, the first bolt is retracted and positioned at the outer side of the first jack, the second bolt is retracted and positioned at the outer side of the second jack, and both the first joint and the second joint can move freely; when the bottom of the locking boss is clamped and fixed in the locking notch, the first bolt is inserted into the first insertion hole, the second bolt is inserted into the second insertion hole, and the first joint and the second joint are both locked and cannot horizontally rotate.
3. The portable multi-linked medical boom of claim 2 that self-locks quickly, wherein: the second connecting rod is a V-shaped connecting rod, the inflection point of the second connecting rod is rotatably fixed on the inner side of the shell of the first support arm, when the transmission rod moves along with the rotation of the rotating disc, the transmission rod drives one end, connected with the V-shaped connecting rod, of the V-shaped connecting rod to swing, and the V-shaped connecting rod rotates around the inflection point rotation center of the V-shaped connecting rod and drives the second bolt to move up and down.
4. The quick self-locking portable multi-linked medical boom of claim 1, wherein: the rotating disc is also fixedly provided with a hook, the bottom end of the radial rotating seat is provided with a first hook ring, and the bottom end of the horizontal rotating seat is provided with a second hook ring; when the bottom of the locking boss is clamped in the movable notch, the hook is laid down in the shell of the first support arm; when the bottom of the locking boss is clamped and fixed in the locking notch, the hook stands up and extends out of the first supporting arm and is used for hooking and locking the first hook ring and the second hook ring.
5. The portable multi-linked medical boom of claim 1 that self-locks quickly, wherein: the locking mechanism is positioned in a cavity formed by the second joint and the second support arm, and comprises a limiting hole, a fixing hole, an adjusting screw and an adjusting nut; the limiting hole is positioned on the top surface of the second joint, the fixing hole is positioned on the bottom surface of the second joint and is opposite to the second joint, the adjusting screw penetrates through the limiting hole and is in threaded fit with the limiting hole, the adjusting nut is positioned between the limiting hole and the fixing hole and is in threaded fit with the adjusting screw, and one end of the telescopic rod can be fixed on the adjusting nut in a vertically rotating mode; screwing the adjusting screw downwards, wherein the adjusting screw penetrates through the fixing hole and is in threaded fit with the fixing hole, and the second support arm is locked relative to the second joint and cannot rotate up and down; and the adjusting screw is screwed upwards, the adjusting screw is suspended right above the fixing hole, and the second support arm can rotate up and down relative to the second joint.
6. The fast self-locking portable multi-linked medical boom of claim 5, wherein: the pulley is installed at one end, opposite to the telescopic rod, of the adjusting nut, a groove parallel to the adjusting screw is formed in the second joint, the pulley is located in the groove, when the adjusting screw moves up and down, the adjusting nut moves up and down along with the adjusting screw, and the pulley abuts against the groove and rolls up and down.
7. The quick self-locking portable multi-linked medical boom of claim 1, wherein: the second support arm is including shell body and the interior casing that is half enclosed structure, the shell body with the opening of interior casing is relative and composite erection forms hollow second support arm, interior casing with the head end of shell body rotationally connect respectively in the second joint, the shell body covers the outside of interior casing and with interior casing forms hollow support arm chamber, unloaded self-locking mechanism hookup radial swivel mount the shell body and interior casing works as unloaded self-locking mechanism locks, radial swivel mount the shell body and interior casing all is locked fixedly.
8. The quick self-locking portable multi-linked medical boom of claim 7, wherein: the no-load self-locking mechanism comprises a connecting rotary column, an L-shaped connecting rod, a rotary pin and a self-locking handle; the axis of the connecting rotary column is parallel to the rotation axis of the radial rotary seat, and the connecting rotary column passes through the intersection of the outer shell and the radial rotary seat; the L-shaped connecting rod is installed on the connecting rotary column, the rotating pin is installed inside the inner shell and parallel to the connecting rotary column, a through hole is formed in the rotating pin, and the L-shaped connecting rod penetrates through the through hole and is in clearance fit with the rotating pin; the self-locking handle is arranged on the side face of the connecting rotary column and positioned on the outer side of the outer shell, the self-locking handle is screwed down, and the connecting rotary column is pulled to be close to the self-locking handle.
9. The quick self-locking portable multi-linked medical boom of claim 8, wherein: the self-locking handle is connected with the connecting rotary column through threads.
CN202111042814.8A 2021-09-07 2021-09-07 Portable multisection medical treatment support arm of quick auto-lock Active CN113958830B (en)

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