CN108844565A - A kind of needle arm structure puncturing function with anticollision - Google Patents
A kind of needle arm structure puncturing function with anticollision Download PDFInfo
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- CN108844565A CN108844565A CN201811009986.3A CN201811009986A CN108844565A CN 108844565 A CN108844565 A CN 108844565A CN 201811009986 A CN201811009986 A CN 201811009986A CN 108844565 A CN108844565 A CN 108844565A
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- needle
- puncture needle
- guide sleeve
- pressure spring
- fixing seat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
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- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention discloses a kind of needle arm structure that function is punctured with anticollision, including puncture needle, limited post, guide sleeve, sensor fixing seat, optoelectronic switch, needle sensing chip, pressure spring, guide sleeve is mounted on the lower end of sensor fixing seat, puncture needle sequentially passes through the center of sensor fixing seat, guide sleeve from top to bottom, cavity is formed between the inner wall of guide sleeve and the outer wall of puncture needle, pressure spring is arranged in cavity, limited post is located at the lower end of cavity and connect with the outer wall thread of puncture needle, and limited post can move upwardly together compression press spring with puncture needle；Needle sensing chip is provided on puncture needle, needle sensing chip is located at the lower end of optoelectronic switch, and puncture needle is moved upward to the induction region that needle sensing chip blocks optoelectronic switch, and needle arm movement stops.The technical program can adjust the anticollision intensity of puncture needle, while can be achieved at the same time puncture function to a certain extent to the dynamics of pressure spring by adjusting the dynamics of pressure spring.
Description
Technical field
The present invention relates to detection device accessory technical fields, and in particular to a kind of needle arm that function is punctured with anticollision
Structure.
Background technique
It often will use a kind of cantilever needle construction in IVD industry, be chiefly used in the inspection of the types such as biochemical instruments, immunochemiluminescence
It surveys on instrument, the anti-collision structure being often used is the anticollision support of cantilevered anticollision support either Double-spring.Anticollision prevents needle
There is maloperation to be bent, when needle is ejected or heads into the sensor detection range being pre-designed, to judge whether needle touches
It hits, common cantilevered anticollision support, due to only using a spring, and using cantilever design center of effort not in the axis of needle
The heart may cause needle and collide unbalance stress, cannot be restored to original position and stuck；
Double-spring anticollision support, due to having used two springs, center of effort can guarantee unanimously, not can guarantee two but
Root spring can not avoid stuck completely in the consistency for replying direction movement, and in addition double-spring structure occupied space is larger, unfavorable
In the use of microstructure, and the weight of needle arm front end is increased, rotary inertia can be bigger.In general both modes
Needle anti-collision structure, which cannot allow, needle while having the function of puncture.
Therefore, it is based on disadvantages described above, a kind of needle arm structure puncturing function with anticollision is provided.
Summary of the invention
The present invention one of regarding to the issue above, provides a kind of needle arm structure that function is punctured with anticollision, using successively wearing
Cross sensor fixing seat, support plate, guide sleeve, limited post puncture needle, be equipped between guide sleeve and puncture needle and accommodate pressure spring
Cavity, in needle arm motion process, when the lower end of puncture needle strikes hard object, limited post moves upwardly together compression with puncture needle
Spring, until the needle sensing chip on puncture needle blocks optoelectronic switch induction region, then the movement of needle arm stops, and prevents puncture needle from occurring
Collision, the anticollision intensity for solving puncture needle in the prior art can not adjust, and avoid using spring can not restore direction and transport
The technical problems such as dynamic.
The present invention is achieved through the following technical solutions：
It is a kind of with anticollision puncture function needle arm structure, including puncture needle, limited post, guide sleeve, sensor fixing seat,
Optoelectronic switch, needle sensing chip, pressure spring, guide sleeve are mounted on the lower end of sensor fixing seat, and puncture needle sequentially passes through from top to bottom
The center of sensor fixing seat, guide sleeve, forms cavity between the inner wall of guide sleeve and the outer wall of puncture needle, pressure spring is arranged in sky
Intracavitary, limited post is located at the lower end of cavity and is detachably connected with the outer wall of puncture needle, and limited post can be upward with puncture needle
Mobile compression press spring；Needle sensing chip is provided on puncture needle, needle sensing chip is located at the lower end of optoelectronic switch, and puncture needle moves up
The induction region of optoelectronic switch is blocked to needle sensing chip, needle arm movement stops.
Further, in order to preferably realize that the present invention, the sensor fixing seat are the bulk that cross section is quadrangle
Structure, the central area of sensor fixing seat is provided with the through-hole one passed through conducive to puncture needle, and sensor fixing seat passes through spiral shell
Bolt is fixed with support plate.
Further, in order to preferably realize the present invention, support plate is propped up between sensor fixing seat and guide sleeve
Fagging is equipped with the through-hole two being connected to through-hole one.
Further, in order to preferably realize the present invention, the guide sleeve is located at the lower end of support plate, through-hole two and guiding
The internal connection of set.
Further, in order to preferably realize the present invention, through-hole one, through-hole two, guide sleeve, connection and shape between limited post
At the channel passed through convenient for puncture needle.
Further, in order to preferably realize the present invention, when puncture needle collides hard object, the maximum distance of pressure spring rising
It is equal with the distance between sensor fixing seat bottom and puncture needle upper end.
Further, in order to preferably realize the present invention, there are gaps between the pressure spring and puncture needle.
Further, in order to preferably realize the present invention, there are gaps between the guide sleeve and puncture needle.
Further, in order to preferably realize the present invention, the puncture needle is L-shaped, and support plate is parallel in puncture needle
Part be fixed on L-type plate.
Further, in order to preferably realize the present invention, the L-type plate includes the transverse plate for being fixed on support plate, with branch
The vertical longitudinal plate of fagging, transverse plate and longitudinal plate are integrally formed, and the top of longitudinal plate is U-shaped equipped with being supported to puncture needle
Slot
Needle sensing chip is provided in the structure of puncture needle, when the end impact that the lower end of puncture needle is alternatively referred to as puncture needle arrives
When hard object, it can be moved upwards in guide sleeve together with companion puncture needle between puncture needle using the limited post being threadedly coupled.?
When mobile with puncture needle, the overall structure or part-structure of limited post are located in the cavity that puncture needle and guide sleeve are formed, and limit
Position column upper end is connected to the lower end of pressure spring.When puncture needle does not encounter hard object, pressure spring is in normal condition, at this point, sensor is solid
There are certain distance in reservation lower surface or lower end and the upper end of puncture needle, and the distance is for limiting when puncture needle strikes hard object and can press
The maximum distance that contracting pressure spring rises, when puncture needle reaches sensor fixing seat bottom, needle sensing chip can block optoelectronic switch
Intermediate induction region, when optoelectronic switch induction region is blocked, the movement of entire needle arm stops immediately, thus by light
Collision prevention function is realized in the control of electric switch.And it can also pass through the bounce of adjusting pressure spring, such as replacement pressure in the technical scheme
The model of spring adjusts puncture needle to the size of anticollision power, so that the reagent bottle to some overlay films has puncture effect.
Compared with prior art, the present invention having the following advantages and benefits：
(1) the technical program can adjust the anticollision intensity of puncture needle, while to the anti-of pressure spring by adjusting the dynamics of pressure spring
Elastic force is adjusted, and reaches and adjusts puncture needle to the size of anticollision power, to have certain puncture to the reagent bottle of some overlay films
Effect.
(2) by the way that pressure spring to be set in around puncture needle in the technical program, and in the center and puncture needle of pressure spring
The heart is overlapped, while gap being arranged between pressure spring and puncture needle, i.e., pressure spring is set on puncture needle, puncture needle has pressure spring
Guiding role, it is ensured that direction needed for the bounce of pressure spring acts on always pressure spring structure itself, is not in stuck situation.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is longitudinal sectional drawing of the invention；
Fig. 3 is the longitudinal sectional drawing of Fig. 1；
Fig. 4 is the longitudinal sectional drawing of Fig. 1 in the present invention；
Fig. 5 is side view of the invention；
When Fig. 6 is that needle arm is in stop motion state, the structural schematic diagram of needle arm and sensor fixing seat；
Fig. 7 is the structural schematic diagram of puncture needle in the present invention；
Fig. 8 is the structural schematic diagram of sensor fixing seat in the present invention
Wherein：1-puncture needle, 2-limited posts, 3-guide sleeves, 4-sensor fixing seats, 41-bolts, 42-the first
Cavity, the 43-the second cavity, 5-optoelectronic switches, 6-needle sensing chips, 7-support plates, 8-L-type plates, 9-pressure springs, 11-spiral shells
Line.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment, the present invention is made
Further to be described in detail, exemplary embodiment of the invention and its explanation for explaining only the invention, are not intended as to this
The restriction of invention.
Embodiment 1：
As Figure 1-Figure 8, a kind of needle arm structure puncturing function with anticollision, including puncture needle 1, limited post 2, lead
To set 3, sensor fixing seat 4, optoelectronic switch 5, needle sensing chip 6, pressure spring 9, guide sleeve 3 is mounted under sensor fixing seat 4
End, puncture needle 1 sequentially pass through the center of sensor fixing seat 4, guide sleeve 3, the inner wall and puncture needle 1 of guide sleeve 3 from top to bottom
Outer wall between form cavity, pressure spring 9 is arranged in cavity, and limited post 2 is located at the lower end of cavity and can with the outer wall of puncture needle 1
Dismantling connection, limited post 2 can move upwardly together compression press spring 9 with puncture needle 1；Needle sensing chip 6, needle are provided on puncture needle 1
Sensing chip 6 is located at the lower end of optoelectronic switch 5, and puncture needle 1 is moved upward to the induction region that needle sensing chip 6 blocks optoelectronic switch 5,
Needle arm movement stops.
Puncture needle 1 described in the present embodiment is flexible at L-shaped structure, as shown in fig. 7, puncture needle includes needle core and packet
The shell of part needle core is covered, the shell includes the first cladding shell, the second cladding shell, third cladding shell, the first cladding
Shell, the second cladding shell, third cladding shell set gradually needle core part in a vertical state, and the first packet from top to bottom
The lower end for covering shell is connect with the upper end of the second cladding shell, and the lower end of the second cladding shell and the upper end of third cladding shell connect
It connects, and the first cladding shell, the second cladding shell, third cladding shell and needle core are in integral structure, and first coats shell, the
Two cladding shells, third cladding shell are in turn connected to form integral structure, and cross section is circle, and the first cladding shell,
The cross-sectional diameter that second cladding shell, third coat shell is sequentially reduced, while being arranged in the outer surface of the second cladding shell
There is screw thread 11.Needle sensing chip 6 is mounted on the upper end of the first cladding shell, and the structure of needle sensing chip 6 is laminated structure, and is used
When, needle sensing chip 6 is placed in vertical, and the lower end of needle sensing chip 6 is equipped with circular ring structure, which covers in the periphery of needle core,
Therefore needle sensing chip 6 follows puncture needle 1 to move together.
The sensor fixing seat 4 is the block structure that cross section is quadrangle, and the central area of sensor fixing seat 4 is set
There is the through-hole one passed through convenient for puncture needle 1, the both ends of sensor fixing seat 4 are respectively provided with bolt 41 and are fixed with guide sleeve 3.It passes
The concrete shape of sensor fixing seat 4 is adapted to reach with the shape of puncture needle 1, as shown in figure 8, puncture needle 1 and sensor
4 contact site of fixing seat, when needle arm proper motion, between the upper surface of the first cladding shell and the lower end of sensor fixing seat 1
The first cavity 42 is formed, the vertical length of 42 cavity is h, conducive to puncture needle 1 when touching hard object, springs back, avoids upwards
Puncture needle is bent.Due to being equipped with needle sensing chip 6 on the first cladding shell, needle sensing chip 6 is moved up with puncture needle, because
This is equipped with the second cavity 43 moved up convenient for 6 overall structure of needle sensing chip in sensor fixing seat 4, and the second cavity 43 is
Through the structure of sensor fixing seat 4, and the second cavity 43 is connected to through-hole one.Two be mounted in sensor fixing seat 4
Bolt 41 is located at the side of the first cavity 41, the second cavity 42, and sensor fixing seat 4 is fixed with guide sleeve 3, specifically
In detail as shown in Figure 8.
It is circular structure that guide sleeve 3, which is cross section, in the present embodiment, and is hollow structure, in guide sleeve 3 and sensing
When device fixing seat 4 is attached, the center line of the through-hole one of sensor fixing seat 4 is overlapped with the center line of guide sleeve 3.Guide sleeve
Cavity is formed between 3 inner wall and the outer wall of puncture needle 1, i.e., there is certain interval between the two, pressure spring 9 is mounted on the cavity
It is interior, wherein the upper end of limited post 2 is located at the lower end of pressure spring 9, and can be moved in the cavity, and limited post 2 is located at cavity
It lower end and is detachably connected with the outer wall of puncture needle 1, specific detachable connection method is to be connected through a screw thread, to realize lock
Extremely, and reserve the precompressed space of pressure spring 9 in guide sleeve 3, limited post 2 is moved with the movement of puncture needle 1, wherein limited post 2 with
The connecting portion of puncture needle 1 is the second cladding shell of puncture needle 1.
Optoelectronic switch 5 described in the present embodiment is mounted in sensor fixing seat 4, positioned at the top of needle sensing chip 6, also
It can be placed exactly in the upper end of the second cavity 42 of sensor fixing seat 4, the setting of optoelectronic switch 5 plays limit to the collision of puncture needle 1
Position effect, the working principle of optoelectronic switch 5 are：Optoelectronic switch 5 is also known as photoelectric sensor, using needle sensing chip 6 with puncture needle 1
When movement, itself is moved in the second cavity 42, when the light beam for being above moved to position needle sensing chip 6 and issuing to optoelectronic switch 5
When being blocked or being reflected, the corresponding structure for controlling needle arm movement can not receive the signal of optoelectronic switch 5, and then stop driving
The movement raised one's arm, needle arm movement stop.
The working principle of needle arm structure described in the present embodiment is：When maloperation, which occurs, in puncture needle 1 withstands hard object, by hard
Object generates an active force to puncture needle 1, under the driving of active force, puncture needle 1 and limited post 2 together in guide sleeve 3 upwards
Movement, 2 compression press spring 9 of limited post, and puncture needle 1 are whole to be moved upwards, and is compressed into maximum distance when pressure spring 9 rises, is punctured
When needle 1 is reached close to sensor 4 bottom of fixing seat, the needle sensing chip 6 on puncture needle 1 blocks the induction zone of optoelectronic switch 5
Domain, after the induction region of optoelectronic switch 5 is blocked, the movement of entire needle arm stops, to realize the anticollision of optoelectronic switch 5
Function.Wherein the bottom of the sensor fixing seat 4 is the top of the first cavity 42, i.e., at this time pressure spring by original state
Rising and being compressed into maximum distance is h.It also is understood as bottom and the upper table of the first cladding shell of the sensor fixing seat 4
The distance between face is equal with the maximum distance that pressure spring 9 rises, and the upper surface of aforementioned so-called first cladding shell is to puncture 1
The upper surface of the cladding shell of structure first.
In the present embodiment, in puncture needle 1 at work in the part being distributed vertically, the entirety of puncture needle is to sequentially pass through biography
The center of the through-hole one of sensor fixing seat 4, guide sleeve 3, and the center line of through-hole one and guide sleeve 3 is overlapped, the i.e. fortune of puncture needle 1
Dynamic direction is in a vertical state always, when pressure spring 9 is set on puncture needle 1, part meeting that puncture needle 1 is contacted with pressure spring 9
There is guiding role to the movement of pressure spring 9, it is ensured that the bounce of pressure spring 9 acts on always direction needed for structure, i.e., with puncture needle 1
The direction of motion be consistent.
Based on the setting of needle arm structure described in the present embodiment, can avoid supporting using cantilevered anticollision, using a spring,
Using center of effort when cantilever design not in the axle center of puncture needle, there is needle and collide unbalance stress, original position cannot be restored to
Set and stuck defect, the technical program is using pressure spring and being set on puncture needle, when puncture needle encounters hard object, positioning column to
Pressure spring is compressed in upper movement, and positioning column sheet is circular structure as cross section at this time, and it is uniform will to receive bounce
Pressure spring 9 is acted on, and it is not in stuck situation that pressure spring is overlapped with the center of puncture needle, puncture needle can also be oriented to pressure spring；
And compared with the prior art in the Double-spring anticollision support construction that uses, using two springs, there are two springs to restore directions
Inconsistent defect is moved, stuck situation is still likely to occur, structure of raising one's arm described in the present embodiment is completely absent this and lacks
It falls into, and overall structure is simple, microstructure can also use.
Pressure spring 9 in the present embodiment can adjust the dynamics of pressure spring, and then adjust by the line footpath and length of selection pressure spring 9
Puncture needle 1 can be realized a degree of puncture function to some reagent bottles with structure of film to the size of anticollision power.
It is related to the other structures such as limited post, guide sleeve, optoelectronic switch, pressure spring and its working principle is that sheet in the present embodiment
Well known to the technical staff of field, no longer it is described in detail.
Embodiment 2：
The present embodiment the difference from embodiment 1 is that：The sensor fixing seat 4 is the blocky knot that cross section is quadrangle
Structure, the central area of sensor fixing seat 4 is provided with the through-hole one passed through conducive to puncture needle 1, and sensor fixing seat 4 passes through spiral shell
Bolt and support plate 7 are fixed.Support plate 7 is between sensor fixing seat 4 and guide sleeve 3, and support plate 7 is equipped with and through-hole one
The through-hole two of connection.Through-hole two in support plate 7 be connected to and formed convenient for puncturing between through-hole one, guide sleeve 3, limited post 2
The channel that needle 1 passes through.Through-hole one, through-hole two, guide sleeve 3, limited post 2 center line be overlapped, i.e., center point-blank, just
In the movement of puncture needle 1.
The specific structure of support plate 7 is as shown in Fig. 1-Fig. 6, and concretely cross section is the long strip shape knot of quadrangle
Structure, one end such as drive needle arm with integral structures, other end installations such as guide sleeve 3, limited posts 2 described in installation the present embodiment
The other component of structure motion control structure and detecting instrument.
Be fixedly connected between sensor fixing seat 4 and support plate 7 by bolt 41 in the present embodiment, support plate 7 with lead
It is fixedly connected with mode accordingly to bolt etc. can also be used between set 3.
Wherein, guide sleeve 3 is mounted on to the lower end of the support plate 7 of needle arm, support plate 7 can be the installation base plate of needle arm, this
When, the position of 6 place puncture needle 1 of needle sensing chip is located in support plate 7, i.e. the annulus knot that connect with puncture needle 1 of needle sensing chip 6
Structure, the outer diameter of circular ring structure are greater than the diameter of the through-hole two of support plate 7, it is ensured that puncture needle is being sensed by the driving for colliding hard object
It is moved in device fixing seat 4.Sensor fixing seat lower end is at a distance from the first cladding upper surface of outer cover of puncture needle 1 for limiting pressure
The maximum distance that spring rises, when pressure spring rises the maximum distance, the position that this hour hands sensing chip 6 is moved to just is sheltered from
Induction region among optoelectronic switch 5, needle arm movement stop.
The present embodiment about the implementation method stopped to needle arm movement, can be also led to by way of blocking optoelectronic switch
It crosses needle arm and is detached from optoelectronic switch control to realize the modes such as stop motion.Therefore adjustment needle arm is detached from optoelectronic switch control stop motion
Mode also within the protection scope of the technical program.The other structures and its working principle is that sheet being related in the present embodiment
Well known to the technical staff of field, no longer it is described in detail.
Embodiment 3：
The difference of the present embodiment and above-described embodiment is：There are gaps between the pressure spring 9 and puncture needle 1.This implementation
Pressure spring 9 is set in the periphery of puncture needle 1, puncture needle 1 has guiding role to pressure spring 9, and can ensure the anti-of pressure spring 9 in example
Elastic force is always maintained in the vertical direction, without deflection.Gap between pressure spring 9 and puncture needle 1 simultaneously, it is ensured that pressure spring 9 is just
Normal pressure contracts not by puncture needle 1 or the friction effects of guide sleeve 3, avoids the reduction and loss acted on 9 elastic force of pressure spring, keeps away simultaneously
Exempt from the pressure spring generated and the case where stuck, can not to restore occurs on mating parts again.
To the optimization of connection relationship between 1 component of pressure spring 9 and puncture needle in the present embodiment, the two in motion process is avoided
Between friction effects to the guiding of pressure spring 9, because of the case where can not recovering to original position without pressure spring 9.
Embodiment 4：
The difference of the present embodiment and above-described embodiment is：There are gaps between the guide sleeve 3 and puncture needle 1.Principle
It is identical with gap is arranged between pressure spring 9 and puncture needle 1, guarantee that pressure spring can normally compress and is not rubbed by puncture needle or guide sleeve
The influence for wiping power, causes the reduction and loss of spring force, or to generate pressure spring stuck on mating parts again and can not restore.
Embodiment 5：
The difference of the present embodiment and above-described embodiment is：The puncture needle 1 is L-shaped, and support is parallel in puncture needle 1
The part of plate 7 is fixed on L-type plate 8.The L-type plate 8 includes the transverse plate being fixed in support plate 7, vertical with support plate 7
Longitudinal plate, transverse plate and longitudinal plate are integrally formed, and the top of longitudinal plate is equipped with the U-type groove being supported to puncture needle 1, transverse plate
Positioned at the upper surface of support plate 7.
In order to ensure proper motion of the puncture needle 1 under the driving of motor equal power device, the structure of setting puncture needle 1 is
" L " type, the part that support plate 7 can be lateral to puncture needle 1 are supported, and the U-type groove in support plate 7 in longitudinal plate is mainly used for
Puncture needle 1 is placed, and puncture needle 1 is supported, and the direction of motion of puncture needle 1 is oriented to, the work of puncture needle 1 is prevented
It is swung during making, and then the needle sensing chip on puncture needle is avoided to detach optoelectronic switch.It is related in the present embodiment
Other structures and its principle are known to those skilled in the art, are no longer described in detail.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of needle arm structure for puncturing function with anticollision, it is characterised in that：Including puncture needle (1), limited post (2), guiding
(3), sensor fixing seat (4), optoelectronic switch (5), needle sensing chip (6), pressure spring (9) are covered, it is solid that guide sleeve (3) is mounted on sensor
The lower end of reservation (4), puncture needle (1) sequentially pass through the center of sensor fixing seat (4), guide sleeve (3), guide sleeve from top to bottom
(3) cavity is formed between the outer wall of inner wall and puncture needle (1), pressure spring (9) is arranged in cavity, and limited post (2) is located at cavity
Lower end and be detachably connected with the outer wall of puncture needle (1), limited post (2) can be moved upwardly together with puncture needle (1) compression pressure
Spring (9)；It is provided on puncture needle (1) needle sensing chip (6), needle sensing chip (6) is located at the lower end of optoelectronic switch (5), puncture needle (1)
It is moved upward to the induction region that needle sensing chip (6) blocks optoelectronic switch (5), needle arm movement stops.
2. a kind of needle arm structure for puncturing function with anticollision according to claim 1, it is characterised in that：The sensor
Fixing seat (4) is the block structure that cross section is quadrangle, and the central area of sensor fixing seat (4) is provided with conducive to puncture needle
(1) through-hole one passed through, and sensor fixing seat (4) is fixed by bolt and support plate (7).
3. a kind of needle arm structure for puncturing function with anticollision according to claim 2, it is characterised in that：Support plate (7)
Between sensor fixing seat (4) and guide sleeve (3), and support plate (7) is equipped with the through-hole two being connected to through-hole one.
4. a kind of needle arm structure for puncturing function with anticollision according to claim 3, it is characterised in that：The guide sleeve
(3) it is located at the lower end of support plate (7), is connected to inside through-hole two and guide sleeve (3).
5. a kind of needle arm structure for puncturing function with anticollision according to claim 4, it is characterised in that：Through-hole one leads to
Hole two, guide sleeve (3) are connected between limited post (2) and form the channel passed through convenient for puncture needle (1).
6. a kind of needle arm structure for puncturing function with anticollision according to claim 2, it is characterised in that：Work as puncture needle
(1) when colliding hard object, maximum distance and puncture needle sensor fixing seat (4) bottom and puncture needle (1) that pressure spring (9) rises
The distance between upper end is equal.
7. a kind of needle arm structure for puncturing function with anticollision according to claim 2, it is characterised in that：The pressure spring
(9) there are gaps between puncture needle (1).
8. a kind of needle arm structure for puncturing function with anticollision according to claim 2, it is characterised in that：The guide sleeve
(3) there are gaps between puncture needle (1).
9. a kind of needle arm structure for puncturing function with anticollision according to claim 2, it is characterised in that：The puncture needle
(1) L-shaped, the part that support plate (7) is parallel in puncture needle (1) is fixed on L-type plate (8).
10. a kind of needle arm structure for puncturing function with anticollision according to claim 9, it is characterised in that：The L-type plate
(8) include being fixed on the transverse plates of support plate (7), the longitudinal plate vertical with support plate (7), transverse plate and longitudinal plate one at
Type, the top of longitudinal plate are equipped with the U-type groove being supported to puncture needle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009986.3A CN108844565A (en) | 2018-08-31 | 2018-08-31 | A kind of needle arm structure puncturing function with anticollision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009986.3A CN108844565A (en) | 2018-08-31 | 2018-08-31 | A kind of needle arm structure puncturing function with anticollision |
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| CN108844565A true CN108844565A (en) | 2018-11-20 |
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| CN206867473U (en) * | 2016-10-21 | 2018-01-12 | 王海霞 | A kind of remaining needle |
| CN208536879U (en) * | 2018-08-31 | 2019-02-22 | 四川沃文特生物技术有限公司 | A kind of needle arm structure puncturing function with anticollision |
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2018
- 2018-08-31 CN CN201811009986.3A patent/CN108844565A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07187514A (en) * | 1993-12-28 | 1995-07-25 | Murata Mach Ltd | Ending control method in doubler |
| CN101095614A (en) * | 2000-07-26 | 2008-01-02 | 泰尔茂株式会社 | Body fluid composition measuring apparatus |
| CN105232093A (en) * | 2014-11-07 | 2016-01-13 | 伊达医疗器材科技股份有限公司 | Method and apparatus for detecting positioning of medical needle using pressure and puncture needle set |
| CN205280427U (en) * | 2015-11-16 | 2016-06-01 | 上海艾诺电子有限公司 | A sample stirring body acupuncture arm |
| CN206867473U (en) * | 2016-10-21 | 2018-01-12 | 王海霞 | A kind of remaining needle |
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