CN216158097U - No-load self-locking protection structure for medical support arm - Google Patents
No-load self-locking protection structure for medical support arm Download PDFInfo
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- CN216158097U CN216158097U CN202122147525.6U CN202122147525U CN216158097U CN 216158097 U CN216158097 U CN 216158097U CN 202122147525 U CN202122147525 U CN 202122147525U CN 216158097 U CN216158097 U CN 216158097U
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Abstract
The utility model provides a no-load self-locking protection structure of a medical support arm, which is additionally provided with the no-load self-locking protection structure on the basis of the structure of the original medical support arm, and a rotary connecting seat, an inner shell and an outer shell are connected in a reinforcing way by screwing a handle, a connecting rotary column, an L-shaped connecting rod and a rotary pin. The handle is twisted to clockwise rotation, the pulling connection rotary column makes it and shell body locking, the connection rotary column is again with L shape connecting rod fixed connection, thereby fixed connecting rod is fixed locking also, the rotatory round pin with fixed connecting rod clearance fit is also fixed locking unable the rotation thereupon, rotatory round pin is connected with interior casing again, thereby interior casing is also fixed, thereby the whole fixed locking state that forms that radially rotates the connecting seat, interior casing, shell body all locked, the unloaded auto-lock protect function of medical support arm.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to a no-load self-locking protection structure of a medical support arm.
Background
In 2020, the heavy policy in the field of Chinese medical instruments is continuously issued, which comprises the steps of continuously promoting 'import substitution' of medical instrument products, optimizing the competitive environment, and providing a more powerful competitive environment for domestic equipment manufacturers from the original encouragement home to the prior home to the current procurement home. Wherein, the medical treatment support arm is the medical instrument that the demand is very big, especially at present like large-scale medical equipment such as ultrasonic equipment gradually towards small, remove in a flexible way, look over convenient dull and stereotyped form improvement, and dull and stereotyped medical equipment is convenient for transport and removal, and use is nimble, but inconvenient fixed gesture and angle of adjustment, directly put the use on the desktop, not only support the unstability easily, medical personnel still need constantly bow to be close to dull and stereotyped observation result, often need lift fixedly with the hand during the use, still have the inconvenience such as reduction inspection efficiency, influence stability. Therefore, it is necessary to use the medical arm to support, adjust, and fix small-sized devices such as a flat medical device to an appropriate position and posture.
The current medical support arm comprises a single-joint support arm and a multi-joint support arm, wherein the foremost end of the tail support arm is generally provided with a rotary connecting seat which can move up and down and left and right for clamping and fixing flat medical equipment, and the posture of a flat plate can be conveniently adjusted, so that the operation and the result observation are convenient. During the use, dull and stereotyped medical equipment installs on swivelling joint seat as no-load counter weight, and the medical support arm atress reaches balancedly, makes swivelling joint seat no longer reciprocate, and dull and stereotyped medical equipment can stably hover. When the flat medical equipment is dismounted or other flat equipment is replaced, the medical support arm loses the balance weight or cannot be balanced, the rotary connecting seat can bounce upwards suddenly, the use of the medical support arm is influenced, and accidental injury is easily caused. Therefore, a medical support arm no-load self-locking protection structure is needed, so that the medical support arm can realize hovering self-locking after losing the balance weight or replacing other flat equipment, and the condition of bouncing cannot occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that a medical support arm in the prior art can bounce upwards after losing a no-load counterweight, and discloses a no-load self-locking protection structure of the medical support arm.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a no-load self-locking protection structure of a medical support arm comprises a tail joint, a tail section support arm, a radial rotary connecting seat and a horizontal rotary connecting seat; the no-load self-locking protection structure comprises a screwing handle, a connecting rotary column, an L-shaped connecting rod and a rotary pin;
the tail section support arm comprises an outer shell and an inner shell which are both in a semi-enclosed structure, and the openings of the inner shell and the outer shell are opposite and combined to form a hollow support arm cavity; the opening of the inner shell is upward, and the head end of the inner shell is rotatably arranged on the tail joint; the opening of the outer shell is downwards covered outside the inner shell, and the head end of the outer shell is rotatably arranged on the tail joint; the bottom end of the radial rotary connecting seat is rotatably arranged at the tail end of the inner shell, the top end of the radial rotary connecting seat is arranged at the tail end of the outer shell through the connecting rotating column, the radial rotary connecting seat radially rotates by taking the joint of the radial rotary connecting seat and the inner shell as an axis, and the outer shell moves along with the rotation of the radial rotary connecting seat; the axis of the connecting rotary column is parallel to the rotation axis of the radial rotary connecting seat, one side of the connecting rotary column is provided with a screwing handle, the arc side surface of the connecting rotary column is provided with an L-shaped connecting rod, the L-shaped connecting rod is positioned in a support arm cavity of the tail support arm, the rotary pin is rotatably arranged in the support arm cavity of the tail support arm and is 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 horizontal rotary connecting seat can be arranged on the radial rotary connecting seat in a left-right rotating mode, and the medical flat panel device is arranged on the horizontal rotary connecting seat.
Preferably, the screwing handle and the connecting rotary column are connected through threads, when the screwing handle is rotated clockwise, the connecting rotary column is close to the screwing handle, and the outer shell is clamped between the screwing handle and the connecting rotary column.
Preferably, two sides of the connecting rotary column are respectively provided with a limiting piece, and the limiting pieces are respectively tightly attached to the outer side of the tail end of the radial rotary connecting seat.
Preferably, a gasket is arranged between the handle and the outer shell.
Preferably, the L-shaped link is perpendicular to the axis of the connecting swivel.
Preferably, the L-shaped link is divided into a first section connected to the connecting rotary column and a second section passing through the rotary pin by using an inflection point as a dividing point, and the inflection point is located between the connecting rotary column and the rotary pin.
Preferably, when the radial rotary connecting seat rotates up and down, the connecting rotary column translates up and down along with the radial rotary connecting seat without rotating, the second section of the L-shaped connecting rod moves forwards/backwards in the through hole of the rotary pin, and the rotary pin rotates along with the L-shaped connecting rod.
Preferably, the L-shaped connecting rod and the connecting rotary column are fixed through threads.
Preferably, the medical support arm comprises at least one support arm, and the last support arm is the support arm which is positioned at the foremost end and connected with the radial rotary connecting seat.
Compared with the prior art, the utility model has the beneficial effects that:
on the structure basis of original medical support arm, increase no-load auto-lock protection architecture, through revolving to twist the handle, connecting rotary column, L shape connecting rod and rotatory round pin with swivelling joint seat, interior casing and shell body reinforcement connection. The handle is twisted to clockwise rotation, the pulling connection rotary column makes it and shell body locking, the connection rotary column is again with L shape connecting rod fixed connection, thereby fixed connecting rod is fixed locking also, the rotatory round pin with fixed connecting rod clearance fit is also fixed locking unable the rotation thereupon, rotatory round pin is connected with interior casing again, thereby interior casing is also fixed, thereby the whole fixed locking state that forms that radially rotates the connecting seat, interior casing, shell body all locked, the unloaded auto-lock protect function of medical support arm. The structure of the existing medical support arm is not greatly changed, no-load self-locking can be completed only by screwing the handle when the medical support arm is used, the use method is simple and convenient, and the no-load self-locking effect is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is an overall schematic view of a medical support arm hovering self-locking structure;
FIG. 2 is a schematic diagram of an internal structure of a medical support arm hovering self-locking structure lacking an outer shell;
fig. 3 is a schematic diagram of an internal structure of a medical support arm hovering self-locking structure lacking an inner shell.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, 2 and 3, the medical support arm no-load self-locking protection structure includes a distal joint 1, a distal support arm 2, a radial rotation connecting seat 3 and a horizontal rotation connecting seat 4; the no-load self-locking protection structure comprises a screwing handle 5, a connecting rotary column 6, an L-shaped connecting rod 7 and a rotating pin 8. The tail section support arm 2 comprises an outer shell 21 and an inner shell 22 which are both in a semi-enclosed structure, and the openings of the inner shell 22 and the outer shell 21 are opposite and combined to form a hollow support arm cavity; the opening of the inner shell 22 is upward, and the head end of the inner shell 22 is rotatably arranged on the tail joint 1; the outer shell 21 is covered outside the inner shell 22 with an opening facing downwards, and the head end of the outer shell 21 is rotatably arranged on the tail joint 1; the bottom end of the radial rotary connecting seat 3 is rotatably arranged at the tail end of the inner shell 22, the top end of the radial rotary connecting seat 3 is arranged at the tail end of the outer shell 21 through the connecting rotary column 6, the radial rotary connecting seat 3 radially rotates by taking the joint of the radial rotary connecting seat 3 and the inner shell 22 as an axis, and the outer shell 21 moves along with the rotation of the radial rotary connecting seat 3; the axis of the connecting rotary column 6 is parallel to the rotation axis of the radial rotary connecting seat 3, one side of the connecting rotary column 6 is provided with a screwing handle 5, the arc side surface of the connecting rotary column 6 is provided with an L-shaped connecting rod 7, the L-shaped connecting rod 7 is positioned in the support arm cavity of the last support arm 2, a rotary pin 8 is rotatably arranged in the support arm cavity of the last support arm 2, the rotary pin 8 is parallel to the connecting rotary column 6, a through hole is arranged on the rotary pin 8, and the L-shaped connecting rod 7 passes through the through hole and is in clearance fit with the rotary pin 8; the horizontal rotary connecting seat 4 can be installed on the radial rotary connecting seat 3 in a left-right rotating mode, and the medical flat panel device is installed on the horizontal rotary connecting seat 4.
When the screw handle 5 is screwed clockwise, the connecting rotary column 6 connected with the screw handle 5 is pulled to be close to the screw handle 5, and the outer shell 21 between the connecting rotary column 6 and the handle is locked; because the connecting rotary column 6 is fixedly connected with the L-shaped connecting rod 7, the L-shaped connecting rod 7 is also fixed and cannot move, the L-shaped connecting rod 7 and the rotating pin 8 are in clearance fit and cannot rotate together with the rotating pin 8, and because the rotating pin 8 is connected with the inner shell 22, the inner shell 22 is also locked, so that a fixed locking state is integrally formed, the no-load self-locking protection function of the medical support arm is realized, and no matter whether flat equipment loads exist on the horizontal rotary connecting seat 4, the radial rotary connecting seat 3, the outer shell 21 and the inner shell 22 are all locked and cannot move.
When the screwing handle 5 is in an unlocked state, the outer shell 21 positioned between the screwing handle 5 and the connecting rotary column 6 can movably rotate, and when the radial rotary connecting seat 3 rotates by taking the tail end connecting part of the inner shell 22 as an axis, the outer shell 21 is connected with the radial rotary connecting seat 3 and is jointly moved; the radial rotary connecting seat 3 rotates downwards, the inner shell 22 is kept still, and the outer shell 21 is driven to move upwards and move forwards in the direction close to the radial rotary connecting seat 3; the radial rotary connecting seat 3 rotates upwards, the inner shell 22 is kept still, and the outer shell 21 is driven to move downwards and move backwards towards the direction close to the tail joint 1.
In one embodiment, the screw handle 5 and the connecting rotary column 6 are connected through threads, when the screw handle 5 is rotated clockwise, the connecting rotary column 6 is close to the screw handle 5, and the outer shell 21 is clamped between the screw handle 5 and the connecting rotary column 6. Screwing handle 5 needs to play the role of pulling connecting rotary column 6, clamping and locking outer shell 21 together with connecting rotary column 6, and screwing handle 5 can be well controlled to be screwed or unscrewed by using threaded connection, so that the operation is simple and the loosening is avoided.
In one embodiment, two sides of the connecting rotary column 6 are respectively provided with a limiting piece 61, and the limiting pieces 61 are respectively tightly attached to the outer sides of the tail ends of the radial rotary connecting bases 3. The limiting piece 61 is used for limiting the connecting rotary column 6 and preventing the connecting rotary column from moving left and right, so that the connecting rotary column 6 only has radial rotary motion around the central axis thereof, and meanwhile, the L-shaped connecting rod 7 is always aligned with the through hole of the rotary pin 8.
In one embodiment, a gasket 9 is arranged between the handle and the outer shell 21, so that when the screwing handle 5 is rotated clockwise to lock the device, the locking effect can be effectively strengthened, and the screwing handle 5 is prevented from being excessively screwed to crush the outer shell 21.
In one embodiment, the L-shaped link 7 is perpendicular to the axis connecting the rotary posts 6. The L-shaped connecting rod 7 is perpendicular to the connecting rotary column 6 and is matched with the rotary pin 8, when the radial rotary connecting seat 3 rotates up and down, the connecting rotary column 6 translates up/down and forwards/backwards along with the connecting rotary column, the L-shaped connecting rod 7 translates up/down and forwards/backwards along with the connecting rotary column is guaranteed, and therefore the L-shaped connecting rod can be well matched and connected with the rotary pin 8.
Preferably, the L-shaped link 7 is divided into a first section 71 connected to the connecting pivot post 6 and a second section 72 passing through the pivot pin 8 with an inflection point located between the connecting pivot post 6 and the pivot pin 8 as a dividing point. When the radial rotary connecting seat 3 rotates up and down, the connecting rotary column 6 translates up and down without rotating, the second section 72 of the L-shaped connecting rod 7 moves forwards/backwards in the through hole of the rotary pin 8, and the rotary pin 8 rotates along with the L-shaped connecting rod 7. Guarantee L shape connecting rod 7 and be connected with rotatory round pin 8 cooperation all the time in rotatory round pin 8, will radially rotate to establish ties through connecting rotary column 6, L shape connecting rod 7, rotatory round pin 8 between connecting seat 3, shell body 21, the interior casing 22, in case clockwise rotation revolves to twist 5 pulling of connecting rotary column 6 and lock shell body 21, radial rotation connecting seat 3 and interior casing 22 are also locked thereupon, realize the unloaded self-locking protect function of medical support arm.
In one embodiment, the L-shaped connecting rod 7 and the connecting rotary column 6 are fixed through threads, so that the installation is convenient. The L-shaped connecting rod 7 is fixedly connected to the connecting rotary column 6 and moves synchronously with the connecting rotary column 6.
In one embodiment, the medical arm comprises at least one arm, and when the medical arm has two or more arms, the last arm 2 is the arm at the foremost end and connected with the rotary connecting seat. The medical support arm with multiple sections of support arms is connected with two adjacent sections of support arms through a rotary joint, and a connecting rod used for linking the multiple sections of support arms can be arranged in the support arm cavity, so that each section of support arm can be rotationally adjusted.
The medical support arm no-load self-locking protection structure is ingenious, low in production cost, simple to use, good in self-locking effect and convenient to install on all the medical support arms at present.
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 utility model. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (9)
1. The utility model provides a no-load self-locking protection structure of medical support arm which characterized in that: the medical support arm comprises a tail joint, a tail section support arm, a radial rotary connecting seat and a horizontal rotary connecting seat; the no-load self-locking protection structure comprises a screwing handle, a connecting rotary column, an L-shaped connecting rod and a rotary pin;
the tail section support arm comprises an outer shell and an inner shell which are both in a semi-enclosed structure, and the openings of the inner shell and the outer shell are opposite and combined to form a hollow support arm cavity; the opening of the inner shell is upward, and the head end of the inner shell is rotatably arranged on the tail joint; the opening of the outer shell is downwards covered outside the inner shell, and the head end of the outer shell is rotatably arranged on the tail joint; the bottom end of the radial rotary connecting seat is rotatably arranged at the tail end of the inner shell, the top end of the radial rotary connecting seat is arranged at the tail end of the outer shell through the connecting rotating column, the radial rotary connecting seat radially rotates by taking the joint of the radial rotary connecting seat and the inner shell as an axis, and the outer shell moves along with the rotation of the radial rotary connecting seat; the axis of the connecting rotary column is parallel to the rotation axis of the radial rotary connecting seat, one side of the connecting rotary column is provided with a screwing handle, the arc side surface of the connecting rotary column is provided with an L-shaped connecting rod, the L-shaped connecting rod is positioned in a support arm cavity of the tail support arm, the rotary pin is rotatably arranged in the support arm cavity of the tail support arm and is 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 horizontal rotary connecting seat can be arranged on the radial rotary connecting seat in a left-right rotating mode, and the medical flat panel device is arranged on the horizontal rotary connecting seat.
2. The no-load self-locking protection structure of the medical support arm as claimed in claim 1, wherein: the screwing handle is in threaded connection with the connecting rotary column, when the screwing handle is rotated clockwise, the connecting rotary column is close to the screwing handle, and the outer shell is clamped between the screwing handle and the connecting rotary column.
3. The no-load self-locking protection structure of the medical support arm as claimed in claim 2, wherein: and two sides of the connecting rotary column are respectively provided with a limiting piece, and the limiting pieces are respectively clung to the outer side of the tail end of the radial rotary connecting seat.
4. The no-load self-locking protection structure of the medical support arm as claimed in claim 2, wherein: a gasket is arranged between the handle and the outer shell.
5. The no-load self-locking protection structure of the medical support arm as claimed in claim 1, wherein: the L-shaped connecting rod is perpendicular to the axis of the connecting rotary column.
6. The no-load self-locking protection structure of the medical support arm as claimed in claim 4, wherein: the L-shaped connecting rod is divided into a first section connected with the connecting rotary column and a second section penetrating through the rotating pin by taking an inflection point as a dividing point, and the inflection point is positioned between the connecting rotary column and the rotating pin.
7. The no-load self-locking protection structure of the medical support arm as claimed in claim 5, wherein: when the radial rotary connecting seat rotates up and down, the connecting rotary column translates up and down along with the connecting rotary column without rotating, the second section of the L-shaped connecting rod moves forwards/backwards in the through hole of the rotary pin, and the rotary pin rotates along with the L-shaped connecting rod.
8. The no-load self-locking protection structure of the medical support arm as claimed in claim 1, wherein: the L-shaped connecting rod and the connecting rotary column are fixed through threads.
9. The no-load self-locking protection structure of the medical support arm as claimed in claim 1, wherein: the medical support arm comprises at least one section of support arm, and the last section of support arm is located at the foremost end and is connected with the radial rotary connecting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122147525.6U CN216158097U (en) | 2021-09-07 | 2021-09-07 | No-load self-locking protection structure for medical support arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122147525.6U CN216158097U (en) | 2021-09-07 | 2021-09-07 | No-load self-locking protection structure for medical support arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216158097U true CN216158097U (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122147525.6U Active CN216158097U (en) | 2021-09-07 | 2021-09-07 | No-load self-locking protection structure for medical support arm |
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| Country | Link |
|---|---|
| CN (1) | CN216158097U (en) |
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2021
- 2021-09-07 CN CN202122147525.6U patent/CN216158097U/en active Active
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