CN218045182U

CN218045182U - Clamping floating mechanism for sampling and swab sampling action device

Info

Publication number: CN218045182U
Application number: CN202221475098.2U
Authority: CN
Inventors: 龚劭秋; 陈杰胤; 梁司法
Original assignee: Shanghai Jirui Bote Intelligent Technology Co ltd
Current assignee: Shanghai Jiruibote Intelligent Technology Co.,Ltd.
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-12-16
Anticipated expiration: 2032-06-13

Abstract

The utility model provides a centre gripping relocation mechanism and swab sampling action device for sampling, centre gripping relocation mechanism includes: the first end of the holding device is used for holding or loosening the swab; the first end part of the sliding guide device is connected with the second end part of the clamping device, a spring is arranged on the sliding guide device, and the spring is abutted against the second end part of the clamping device; a mounting assembly to which a second end of the sliding guide is secured; and the mounting assembly is connected with the driving device, and the driving device drives the clamping device to drive the swab to sample. The utility model discloses a set up axial sliding guide device, can control clamping device effectively and drive the swab and float, can control the power of swab sampling well. The sliding guide post or slider has very low friction, which can greatly improve the sensitivity and accuracy of the swab sampling action device.

Description

Clamping floating mechanism for sampling and swab sampling action device

Technical Field

The utility model relates to the field of medical equipment, in particular to a centre gripping relocation mechanism and swab sampling action device for sampling.

Background

Along with the mutation and the spread of the novel coronavirus, the requirements of normalization of nucleic acid detection are continuously provided in all cities and countryside of China. In this case, the nucleic acid sampling work would require a large amount of manpower. Under such circumstances, automatic swab sampling devices have been developed.

Compared with the traditional manual sampling, the automatic swab sampling device has the advantages of lasting work, low infection risk of medical personnel, full automation and the like. The wide application of automatic swab sampling device not only can solve medical personnel's the problem of lacking in short supply, can also effectively reduce novel coronavirus's propagation risk, under the epidemic situation normalized development background, automatic swab sampling device market development space is wide.

However, in the practical application of the existing automatic swab sampling device, there still exist some problems to be improved:

1. due to the diversification of sampling individuals and the difference of the standing positions and postures of the sampling individuals, the required feeding amount in the sampling process is different, and when the swab is in contact with the soft tissue of a human body, local excessive extrusion is easy to occur, so that the risk of injury is caused;

2. an effective sampling process requires that the swab float and relative displacement occurs within the mouth. Because the sampling force is very small, the automatic swab sampling device is not easy to control whether the induction swab effectively collects the sample on the human soft tissue or not, and sampling accidents such as ineffective sampling or false negative and the like are easy to occur;

3. the existing automatic swab sampling device has the disadvantages of complex structure, low precision and high manufacturing cost, and limits the large-area popularization and application of the automatic swab sampling device;

4. in order to ensure sampling accuracy, the sampling device cannot operate in a relatively fast motion, which increases the time for a single sampling and affects the efficiency of sampling in large batches.

In view of the above, the present inventors have devised a holding floating mechanism and a swab sampling device for sampling, so as to overcome the above technical problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a centre gripping relocation mechanism and swab sampling action device for sampling in order to overcome among the prior art the power of swab sampling device's sampling and defect such as the difficult control of feed volume.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

a clamp and float mechanism for sampling, characterized in that, the clamp and float mechanism for sampling includes:

a holding device, a first end of the holding device is used for holding or loosening the swab;

the first end part of the sliding guide device is connected with the second end part of the clamping device, and a spring is mounted on the sliding guide device and is abutted against the second end part of the clamping device;

a mounting assembly to which a second end of the sliding guide is secured;

the mounting assembly is connected with the driving device, and the clamping device is driven by the driving device to drive the swab to sample.

According to an embodiment of the present invention, the clamping floating mechanism further comprises a distance measuring sensor and a detecting element, which are oppositely disposed, wherein the distance measuring sensor is installed at a fixed position, the detecting element is installed on the clamping device, and the distance measuring sensor is used for detecting the displacement of the detecting element;

when the swab is stressed to press the clamping device, the clamping device floats backwards in the axial direction along the sliding guide device, the spring is stressed to deform, and the displacement value of the detection piece is obtained through the distance measuring sensor.

According to the utility model discloses an embodiment, the range finding sensor is installed the installation component or on the drive arrangement.

According to the utility model discloses an embodiment, centre gripping relocation mechanism still includes stop device, a stop device's a tip is fixed extremely the installation component, the last spacing portion that is provided with of clamping device, another tip of stop device with spacing portion sliding connection is used for the restriction clamping device's slip stroke.

According to an embodiment of the present invention, the clamping device comprises at least a pair of clamping components, each of the clamping components comprises a clamping portion and a connecting portion, the connecting portion is fixed on an outer side surface of the clamping portion;

the sliding guide device comprises at least one pair of sliding guide assemblies, and each sliding guide assembly comprises a sliding guide column and a guide sleeve; the mounting assembly comprises at least one pair of mounting seats;

one end part of the sliding guide post is connected with the connecting part, the other end part of the sliding guide post penetrates through the guide sleeve, the guide sleeve is fixed on the corresponding mounting seat, the spring sleeve is arranged on the sliding guide post, and two ends of the spring are respectively contacted with the corresponding connecting part and the guide sleeve.

According to the utility model discloses an embodiment, an installation through-hole has been seted up on the connecting portion, a tip of sliding guide post wears to establish in the installation through-hole to connect a mounting, make connecting portion follow the sliding guide post slides.

According to the utility model discloses an embodiment, the slip guide post with adopt ball or bearing to connect between the uide bushing.

According to the utility model discloses an embodiment, stop device includes at least two sets of gag lever posts, a plurality of spacing draw-in grooves have been seted up on the clamping part, each a tip of gag lever post is installed with sliding and is corresponded in the spacing draw-in groove, another tip of gag lever post is fixed to corresponding the mount pad.

According to the utility model discloses an embodiment, each group the gag lever post includes two piece at least mutual parallel arrangement's gag lever post, spacing draw-in groove is seted up on the up end of clamping part and the lower terminal surface.

According to the utility model discloses an embodiment, a tip of gag lever post is equipped with spacing portion, spacing portion is boss form or colludes the column structure.

The utility model also provides a centre gripping relocation mechanism for sampling, its characteristics lie in, a centre gripping relocation mechanism for sampling includes:

a mounting frame;

the first end part of the clamping and clasping device is used for clamping or loosening the swab;

the sliding guide device is installed on the mounting frame, a first end of the sliding guide device is connected with a second end of the clamping and clasping device, the sliding guide device is connected with the mounting frame through a spring, and the spring is located in the sliding direction of the sliding guide device.

According to an embodiment of the present invention, the clamping floating mechanism further comprises a distance measuring sensor and a detecting element, which are oppositely arranged, wherein the distance measuring sensor is installed on the mounting frame, the detecting element is installed on the sliding guide device or the clamping holding device, and the distance measuring sensor is used for detecting the displacement of the detecting element;

when the swab is stressed to press the clamping and holding device, the sliding guide device is pushed to slide backwards along the axial direction, the spring is stressed to deform, and the distance measuring sensor acquires the displacement value of the detection piece.

According to an embodiment of the invention, the gripping and clasping device comprises a gripping device and a driving device, the gripping device is used for gripping the swab, with the driving device is connected, the driving device is connected to the sliding guide device.

According to an embodiment of the present invention, the slide guiding device includes a sliding block and a sliding rail, the sliding rail is mounted on the mounting rack, and the sliding block is mounted on the sliding rail and slides along the sliding rail; one end of the sliding block is connected with the driving device.

According to the utility model discloses an embodiment, still be provided with the mounting panel that upwards extends on the mounting bracket, the one end of spring with the mounting panel is connected, the other end with the slider is connected.

According to the utility model discloses an embodiment, clamping device includes at least a pair of centre gripping subassembly, each the centre gripping subassembly includes clamping part and connecting portion, connecting portion fix on the lateral surface of clamping part, connecting portion are connected to drive arrangement.

The utility model also provides a swab sampling action device, its characteristics lie in, swab sampling action device adopts as above a centre gripping relocation mechanism for sampling.

The utility model discloses an actively advance the effect and lie in:

the utility model is used for centre gripping relocation mechanism and swab sampling action device of sampling has following a great deal of advantage:

1. the clamping floating mechanism can effectively control the clamping device to drive the swab to float by arranging the axial sliding guide device, and can well control the force of sampling the swab.

2. The sliding guide column or the sliding block adopted in the clamping floating mechanism has very low friction, and the clamping device can be sensed by the sliding guide column or the sliding block to generate displacement as long as the clamping device slightly floats, so that the sensitivity and the accuracy of the swab sampling action device can be greatly improved.

3. The clamping floating mechanism is provided with the limiting structure, so that the clamping device can be prevented from generating excessive displacement, the clamping device is prevented from being separated from the sliding guide column when sliding, and certain force can be borne through the limiting structure, so that the clamping device can be detached and a sampling swab can be installed.

4. The clamping floating mechanism is provided with the air cylinder, can effectively lock the sliding guide device, prevents the sliding guide device from shaking in a non-working state, and controls the maximum sliding distance of the sliding guide device by matching with the limiting plate.

5. The clamping floating mechanism ingeniously adopts the force conversion relation between displacement and a spring or a tension spring, and can conveniently know the sampling force received by the clamping floating mechanism through accurately sensing the displacement value of the clamping device under the condition of the elastic coefficient of the known spring or tension spring, so that the whole process is convenient and feasible and is easy to control.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which like reference characters refer to like features throughout, and in which:

fig. 1 is a perspective view of a first embodiment of the clamping and floating mechanism for sampling according to the present invention.

Fig. 2 is a front view of a first embodiment of the clamping and floating mechanism for sampling according to the present invention.

Fig. 3 is a schematic view illustrating the swab being loosened by the clamping device according to the first embodiment of the present invention.

Fig. 4 is a schematic view of an initial state of the holding device clamping the swab according to the first embodiment of the present invention.

Fig. 5 is a schematic diagram illustrating a state of the clamping device pushing the sliding guide device after clamping the swab according to the first embodiment of the floating clamping mechanism for sampling of the present invention.

Fig. 6 is a perspective view of a second embodiment of the clamping and floating mechanism for sampling according to the present invention.

Fig. 7 is a schematic view of an initial state of the spring when the spring adopts a tension spring in the second embodiment of the clamping floating mechanism for sampling according to the present invention.

Fig. 8 is a schematic drawing of a pulling state of the spring in the second embodiment of the floating clamping mechanism for sampling according to the present invention.

Fig. 9 is a schematic view of an initial state of the clamping floating mechanism for sampling according to the second embodiment of the present invention when the spring is a compressed spring.

Fig. 10 is a schematic view of a compression state of the spring of the second embodiment of the floating clamping mechanism for sampling according to the present invention.

[ reference numerals ]

Clamping

device

100, 23

Slide guide

200, 30

Mounting assembly 300

Drive

devices

400, 24

First end 110 of the clamping device

Second end 120 of the clamping device

First ends 210, 31 of the sliding guide

Second end 220 of the sliding guide

Swabs

500, 40

Springs

600, 50

Distance measuring

sensors

700, 60

Detecting

member

800, 70

Limiting device 900

Clamping

part

130, 231

Connecting part

140, 232

Sliding guide post 201

Guide sleeve 202

Mounting seat 301

Limiting rod 901

Position limiting portion 902

Limiting clamping groove 131

Mounting frame 10

Clamping and clasping device 20

First end 21 of a clamping and clasping device

Second end 22 of the clamping and clasping device

Sliding groove 241

Slide 32

Connecting piece 321

Mounting plates 12, 12'

First positioning portion 13

Second positioning portion 322

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.

Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.

The first embodiment is as follows:

fig. 1 is a perspective view of a first embodiment of a clamping floating mechanism for sampling according to the present invention. Fig. 2 is a front view of a first embodiment of the clamping and floating mechanism for sampling according to the present invention. Fig. 3 is a schematic view of a holding device for loosening a swab according to an embodiment of the floating holding mechanism for sampling of the present invention. Fig. 4 is a schematic view illustrating an initial state of the holding device clamping the swab in the first embodiment of the floating holding mechanism for sampling according to the present invention. Fig. 5 is a schematic diagram illustrating a state of the first clamping device pushing the sliding guide device after clamping the swab according to the embodiment of the floating clamping mechanism for sampling of the present invention.

As shown in fig. 1 to 5, the utility model discloses a centre gripping relocation mechanism for sampling, include: a clamping device 100, a sliding guide 200, a mounting assembly 300 and a drive device 400. Wherein the first end 110 of the holding device 100 is used to hold or release the swab 500. The first end 210 of the slide guide 200 is connected to the second end 120 of the clamping device 100, and the spring 600 is mounted on the slide guide 200, and the spring 600 abuts against the second end 120 of the clamping device 100. Meanwhile, the second end 220 of the slide guide 200 is fixed to the mounting assembly 300. The mounting assembly 300 is connected to the driving device 400, and the swab 500 is driven to sample by driving the holding device 100 via the driving device 400.

Preferably, the clamping floating mechanism for sampling further comprises a distance measuring sensor 700 and a detecting member 800. The distance measuring sensor 700 is installed at a fixed position, the sensing member 800 is installed on the clamping device 100, and the distance measuring sensor 700 is used for sensing the displacement of the sensing member 800. The distance measuring sensor 700 may preferably be a photoelectric sensor here.

Here, the fixed position refers to a position that is fixed and does not move, for example, the distance measuring sensor 700 may be preferably installed on the mounting assembly 300 or the driving device 400. Of course, the fixed position may be other positions or fixed components, all of which are within the protection scope of the present application and are not limited by the embodiment.

When the swab 500 is applied with a sample contacting and force applied to the soft tissue of a human body, the swab 500 presses the holding device 100, and the holding device 100 floats along the sliding guide 200 in an axial direction (generally, the axial direction of the swab 500) and in a backward direction (i.e., a direction close to the mounting assembly 300, such as the direction a shown in fig. 1). The spring 600 receives the pressing force transmitted from the clamping device 100, and the spring 600 is compressed and deformed. At this time, the clamping device 100, together with the detecting member 800, and the spring 600 are displaced.

Then, the displacement value of the detecting member 800 can be obtained by the distance measuring sensor 700, that is, the displacement value of the spring 600 can be obtained as well. Since the elastic coefficient of the spring 600 is a known number, a person skilled in the art can obtain the elastic force applied to the spring 600 according to a calculation formula of the elastic force. The force experienced by the pledget 500 is equal to the spring force herein, depending on the force versus reaction force.

The slide guide of the present application is particularly required to have a low axial friction (the slide guide can be made of standard parts, and can be designed and manufactured by those skilled in the art, and is only described as an example) because the swab is sampled with a very small force, so that the holding device can slide and displace along the slide guide even if a small force is applied. Thus, the force of swab sampling can be conveniently and accurately controlled by the clamping floating mechanism.

Preferably, in order to ensure the stability of the clamping floating mechanism and prevent the clamping device from sliding in a non-working state, the clamping floating mechanism further comprises a limiting device 900, one end of the limiting device 900 is fixed to the mounting assembly 300, a limiting portion is arranged on the clamping device 100, and the other end of the limiting device 900 is slidably connected with the limiting portion and used for limiting the sliding stroke of the clamping device 100. Meanwhile, the limiting device 900 can bear certain force through the limiting structure, and the clamping device is favorable for disassembling and installing the sampling swab.

Further, in the present embodiment, the clamping device 100 may preferably include at least one pair of clamping assemblies, each of which includes a clamping portion 130 and a connecting portion 140, the connecting portion 140 being fixed on an outer side surface of the clamping portion 130. The holding portion 130 may preferably have a circular arc sheet-like structure, and when a plurality of holding portions 130 (e.g., two) are clamped to each other, an annular inner wall surface is formed to match the shape of the end of the swab 500, which is advantageous for more stably and firmly clamping the swab 500. Of course, the shape of the holding portion 130 is only an example, and it can adopt various structures to match the shape of the swab 500, and the two can be matched for use, and the other is not limited and is within the scope of the present invention.

The sliding guide 200 preferably includes at least a pair of sliding guide assemblies, each of which includes a sliding guide post 201 and a guide sleeve 202. It is noted here that when only a pair of slide guide assemblies is employed with the slide guide apparatus 200, care should be taken to maintain the slide guide assemblies in the axial direction of the swab as much as possible to avoid overturning moments.

The mounting assembly 300 preferably includes at least a pair of mounting seats 301, such as mounting flanges, slidably mounted on the driving device 400, and the mounting seats 301 are moved toward or away from each other under the control of the driving device 400, so as to move the clamping portions 130 toward or away from each other. The driving device 400 may be a pneumatic cylinder. Of course, the form of the mount 301 and the driving device 400 is only for example and not limited by the embodiment, and those skilled in the art should understand that other corresponding forms are within the scope of the present application.

One end of the sliding guide post 201 is connected to the connecting portion 140, the other end is inserted into the guide sleeve 202, and the guide sleeve 202 is fixed to the corresponding mounting seat 301, for example, by screw fastening. The spring 600 is fitted over the sliding guide post 201 such that both ends of the spring 600 are in contact with the corresponding connecting portion 120 and the guide sleeve 202, respectively.

The spring 600 in the present embodiment may preferably be a tension spring or a compression spring according to the installation position of the slide guide 200 with respect to the clamping device 100. When the clamping device 100 is forced to move axially along the sliding guide column 201, if the spring 600 is a tension spring, the spring is forced to be pulled open; if the spring 600 is a compression spring, it is compressed by force.

For example, a mounting hole (not shown) is formed in the connecting portion 140, an end of the sliding guide post 201 is inserted into the mounting hole, and a fixing member is connected to the connecting portion 120 to slide along the sliding guide post 201. The fixing piece can prevent the connecting part 140 from falling off from the sliding guide column 201, and has a limiting effect.

Here, a ball or needle connection may be preferably used between the sliding guide post 201 and the guide sleeve 202. Of course, the connection method is only an example, and those skilled in the art should know that other connection methods may be substituted and are within the protection scope of the present application.

Further preferably, the limiting device 900 includes at least two sets of limiting rods 901, a plurality of limiting slots 131 are opened on the clamping portion 130, one end of each limiting rod 901 is slidably installed in the corresponding limiting slot 131, and the other end of the limiting rod 901 is fixed to the corresponding mounting seat 301.

For example, each set of limiting rods 901 may preferably include at least two limiting rods 901 arranged in parallel (e.g., arranged in parallel up and down), and the limiting slots 131 are opened on the upper end surface and the lower end surface of the clamping portion 110.

A stopper 902 is provided at one end of the stopper rod 901, and the stopper may preferably have a boss-like or hook-like structure. This structure can prevent one end of the stopper 901 from coming out of the stopper slot 131, and plays a role in restricting the stroke. Of course, the structure of the limiting portion is only an example, and those skilled in the art should understand that other similar structures may be substituted, and all of them are within the protection scope of the present application.

According to the above description, the number, the connection structure and the linkage structure of the middle clamping device 100, the sliding guide device 200, the mounting assembly 300 and the limiting device 900 are not limited by the embodiment, the number, the connection structure and the linkage structure of these devices are mutually matched and coordinated, and can be adjusted according to the specific structure, and those skilled in the art should be able to obtain corresponding equivalent variations under the guidance of the technical solution of the present application, and the essence is consistent, and thus all are within the protection scope of the present application.

The second embodiment:

fig. 6 is a perspective view of a second embodiment of the clamping and floating mechanism for sampling according to the present invention. Fig. 7 is a schematic view of an initial state of the spring when the spring adopts a tension spring in the second embodiment of the clamping floating mechanism for sampling according to the present invention. Fig. 8 is a schematic drawing of a pulling state of the spring in the second embodiment of the floating clamping mechanism for sampling according to the present invention. Fig. 9 is a schematic view of an initial state of the clamping floating mechanism for sampling according to the second embodiment of the present invention when the spring is a compressed spring. Fig. 10 is a schematic view of a compression state of the spring of the second embodiment of the floating clamping mechanism for sampling according to the present invention.

As shown in fig. 6 to 10, the present invention further provides a clamping floating mechanism for sampling, including: a mounting frame 10, a clamping holding device 20 and a sliding guide device 30. Wherein the first end 21 of the holding and clasping device 20 is used to hold or release the swab 40. The slide guide 30 is mounted on the mounting frame 10, and a first end 31 of the slide guide 30 is connected to the second end 22 of the holding clip 20. The slide guide 30 and the mounting bracket 10 are connected by a spring 50, and the spring 50 is located in the sliding direction of the slide guide 30.

Preferably, the clamping floating mechanism for sampling further comprises a distance measuring sensor 60 and a detecting piece 70. The distance measuring sensor 60 is installed on the mounting frame 10, the detecting member 70 is installed on the sliding guide device 30 or the clamping and clasping device 20, and the distance measuring sensor 60 is used for detecting the displacement of the detecting member 70. Here, the distance measuring sensor 60 may preferably be a photoelectric sensor.

When the swab 40 is brought into sampling contact with the soft tissue of the human body and is subjected to a force, the swab 40 presses the holding and clasping means 20, and the holding and clasping means 20 pushes the sliding guide means 30 to slide or float backwards in the axial direction (preferably in the axial direction of the swab 40). The spring 50 is deformed by force, and the displacement value of the detection piece is obtained through the distance measuring sensor.

The spring 50 in this embodiment may preferably be a tension spring or a compression spring. When the spring 50 is a tension spring, the tension spring is pulled by the slide guide 30, and the tension spring is pulled to generate a displacement. When the spring 50 is a compression spring, the compression spring receives the extrusion force of the sliding guide device 30, and the compression spring is compressed by force to generate displacement.

Then, the displacement value of the detecting member 70 can be obtained by the distance measuring sensor 60, that is, the displacement value of the spring 50 can be obtained as well. Since the elastic coefficient of the spring 50 is a known value, a person skilled in the art can obtain the tensile force applied to the spring 50 according to a calculation formula of the elastic force. The amount of force experienced by the swab 40 is equal to the amount of tension experienced by the spring 50, depending on the force versus reaction force.

The slide guide in this application is particularly required to have a low axial friction (the slide guide can be made of standard parts, but it can be designed and manufactured by those skilled in the art, and this is only illustrated as an example) because the swab is sampled with a very small force, so that the slide guide can be pushed to slide and displace even a small force applied to the holding and clasping device. Thus, the force of swab sampling can be conveniently and accurately controlled by the clamping floating mechanism.

Preferably, the holding clasping means 20 in this embodiment may comprise a holding means 23 and an actuating means 24, the holding means 23 being mainly used for holding the swab 40, being connected to the actuating means 24, the actuating means 24 being connected to the slide guide means 30. Of course, the holding device 23 and the driving device 24 may be integrally formed or slidably connected, etc. In fact, the connection structure between the two is not limited as long as the respective functions can be realized.

For example, the clamping device 23 may optionally include at least one pair of clamping members, each of which includes a clamping portion 231 and a connecting portion 232, and the connecting portion 232 is fixed on the outer side surface of the clamping portion 231. The connection 232 is then connected to the drive device 24.

The holding portion 231 may preferably have a circular arc sheet-like structure, and when a plurality of holding portions 231 (for example, two holding portions) are clamped to each other, an annular inner wall surface is formed to match the shape of the end of the swab 40, which is advantageous for more stably and firmly clamping the swab 40. Of course, the shape and structure of the holding portion 231 are only examples, and various structures can be adopted to match the shape of the swab 40, so long as the two can be matched for use, and the other is not limited, and is within the scope of the present invention.

Correspondingly, for example, a sliding groove 241 is opened at one end of the driving device 24, and the connecting portion 232 is slidably connected with the sliding groove 241, so that the connecting portion 232 corresponding to each clamping portion 231 moves in the sliding groove 241, and clamping and releasing between the clamping portions 231 are realized. The other end of the drive device 24 is fixedly connected to the slide guide 30.

Preferably, the slide guide 30 may include a slider 32 and a slide rail (not shown) mounted on the mounting frame 10, the slider 32 being mounted on the slide rail to slide along the slide rail. One end of the slider 32 is connected to the driving device 24.

Further, for example, a connecting member 321 is provided at one end of the slider 32, and the connecting member 321 is connected to the driving device 24. For example, the connecting member 321 may be a connecting flange or the like.

As shown in fig. 7 and 8, further, an upwardly extending mounting plate 12 is provided on the mounting frame 10, the connecting member 321 of the slider 32 is located above the mounting plate 12, and the mounting plate 12 is located between the slider 32 and the connecting member 321. In this case, the spring 50 may be a tension spring, the mounting plate 12 may be provided with the first positioning portion 13, the other end of the slider 32 may be provided with the second positioning portion 322, and both ends of the tension spring (i.e., the spring 50) may be connected to the first positioning portion 13 and the second positioning portion 322, respectively.

Alternatively, as shown in fig. 9 and 10, an upwardly extending mounting plate 12 'is provided on the mounting frame 10, and the mounting plate 12' is located at the rear side of the slider 32 away from the connecting member 321. In this case, the spring 50 may be a compression spring, and both ends of the compression spring are respectively connected to the mounting plate 12' and the slider 32. For example, to ensure smooth loading of the slider 32, it is contemplated that the spring 50 be disposed horizontally or parallel to the slider 32, such as in the axial position of the swab 40.

In addition, it is preferably contemplated that two sets of springs 50 may be provided on either mounting plate 12 or mounting plate 12', one on each side of slider 32, to provide for more smooth pulling of springs 50 by slider 32.

Of course, the number and the installation manner of the springs 50 are only examples, and those skilled in the art can modify the above structure idea, so long as the above functions can be achieved, and all the modifications are within the protection scope of the present application.

In addition, in the structure in which the spring 50 is a tension spring, the detecting member 70 may preferably be fixed to the bottom end of the connecting member 321 such that the detecting member 70 has a stroke with respect to the mounting plate 12 (i.e., the detecting member 70 has a certain distance with respect to the mounting plate 12). When the slider 32 slides backward (in the direction B shown in fig. 6), the detecting member 70 is driven to move toward the mounting plate 12, and the mounting plate 12 can also be used to limit the moving stroke of the detecting member 70. That is, when the detecting member 70 is moved into contact with the mounting plate 12, i.e., the maximum displacement of the detecting member 70, the mounting plate 12 can limit the detecting member 70 from moving further backward (in the direction B as shown in fig. 6), thereby preventing the holding clasp apparatus from being stressed too much, i.e., preventing the swab 40 from being stressed too much when sampling.

Still further, an air cylinder (not shown) may be preferably disposed on the mounting plate 12 or the mounting plate 12', and a driving rod of the air cylinder abuts against the slider 32 for limiting the slider 32.

When the clamping floating mechanism is in a non-working state, the clamping floating mechanism can be ejected out through the driving rod of the air cylinder and tightly abuts against the sliding block 32, so that the sliding guide device 30 is locked by the air cylinder. This structure can effectively prevent the slide guide from shaking or pulling away to a large distance.

For example, in order to ensure smooth force application of the slider 32, it is preferable to consider two sets of cylinders on the mounting plate 12 or the mounting plate 12', respectively on both sides of the slider 32, so that the cylinders push both sides of the slider 32 at the same time, ensuring that the slider 32 and the spring 50 are smooth and remain translated in the axial position.

Here, the structure that the air cylinder is used to realize the limiting function is only an example, and actually, other adjustable limiting structures in other structural forms may also be used to achieve the same effect, and those skilled in the art should obtain corresponding replacements of other equivalent structures according to the teaching of this embodiment, all of which are within the protection scope of this application.

Alternatively, the mounting bracket 10 may be provided with a base (not shown). Further, a positioning plate (not shown) may be disposed on the base for connecting to an external actuator. For example, the positioning plate is disposed at an end portion of one side of the base, outside the slider 32. After the positioning plate is connected with an external actuating mechanism, the whole clamping floating mechanism can be stably fixed.

According to the above description, the number, the connection structure and the linkage structure of the clamping device 23, the driving device 24, the sliding guide device 30 and the spring 50 are not limited by the embodiments, the number, the connection structure and the linkage structure of these devices are mutually matched and coordinated, and can be adjusted according to the specific structure, and those skilled in the art should be able to obtain corresponding equivalent variations under the guidance of the technical solution of the present application, and the essence is consistent, and therefore all are within the protection scope of the present application.

On the basis of the first and second embodiments, the present invention further provides a swab sampling actuating device, which employs the above-mentioned holding floating mechanism for sampling. The clamping floating mechanism for sampling can be connected with an external actuating mechanism for operation, such as a mechanical arm or various automatic control devices. When the external actuating mechanism drives the clamping floating mechanism to sample, the clamping device drives the swab to contact with soft tissues of a human body and apply certain pressure to sample, the clamping device feels force and then moves along the sliding guide device, the spring is extruded, or the clamping holding device feels force and then pushes the sliding guide device to move to pull the tension spring. And meanwhile, the distance measuring sensor senses the displacement generated by the detection piece, so that the displacement value of the detection piece is obtained, and the displacement value is transmitted to an external execution mechanism. Then, the external actuator adjusts the floating of the swab (for example, the floating distance, floating force, etc. of the swab) according to the fed back displacement value, so that the automatic swab sampling action device with high sensitivity and high precision control can be realized.

To sum up, the utility model is used for centre gripping relocation mechanism and swab sampling action device of sampling has following a great deal of advantage:

3. The clamping floating mechanism is provided with the limiting structure, so that the clamping device can be prevented from generating excessive displacement, the clamping device is prevented from being separated from the sliding guide column when sliding, certain force can be borne through the limiting structure, and the clamping device can be detached and the sampling swab can be installed conveniently.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments can be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. A clamp and float mechanism for sampling, the clamp and float mechanism for sampling comprising:

the first end of the sliding guide device is connected with the second end of the clamping device, and a spring is mounted on the sliding guide device and abuts against the second end of the clamping device;

a mounting assembly to which a second end of the sliding guide is secured;

and the mounting assembly is connected with the driving device, and the driving device drives the clamping device to drive the swab to sample.

2. The clamp floating mechanism for sampling according to claim 1, further comprising a distance measuring sensor and a detecting member, which are oppositely arranged, wherein the distance measuring sensor is installed at a fixed position, the detecting member is installed on the clamping device, and the distance measuring sensor is used for detecting the displacement of the detecting member;

when the swab is stressed to press the clamping device, the clamping device floats backwards in the axial direction along the sliding guide device, the spring is stressed to deform, and the distance measuring sensor acquires the displacement value of the detection piece.

3. The clamp float mechanism for sampling of claim 2, wherein the ranging sensor is mounted on the mounting assembly or the drive device.

4. The floating clamping mechanism for sampling according to claim 1, further comprising a limiting device, wherein one end of the limiting device is fixed to the mounting assembly, the clamping device is provided with a limiting portion, and the other end of the limiting device is slidably connected with the limiting portion for limiting the sliding stroke of the clamping device.

5. The floating clamping mechanism for sampling according to claim 4, wherein said clamping means comprises at least a pair of clamping assemblies, each of said clamping assemblies comprising a clamping portion and a connecting portion, said connecting portion being fixed to an outer side surface of said clamping portion;

6. The floating mechanism of claim 5, wherein the connecting portion has a mounting hole, and an end of the sliding guide post is inserted into the mounting hole and connected to a fixing member, so that the connecting portion slides along the sliding guide post.

7. The clamp float mechanism for sampling of claim 6, wherein a ball or needle connection is employed between the sliding guide post and the guide sleeve.

8. The clamping floating mechanism for sampling according to claim 5, wherein the limiting device comprises at least two sets of limiting rods, a plurality of limiting slots are formed on the clamping portion, one end of each limiting rod is slidably mounted in the corresponding limiting slot, and the other end of each limiting rod is fixed to the corresponding mounting seat.

9. The clamping floating mechanism for sampling according to claim 8, wherein each set of said limiting rods comprises at least two limiting rods arranged in parallel, and said limiting clamping grooves are formed on the upper end surface and the lower end surface of said clamping portion.

10. The clamping floating mechanism for sampling according to claim 9, wherein a limiting part is provided at one end of the limiting rod, and the limiting part is of a boss-shaped or hook-shaped structure.

11. A clamp and float mechanism for sampling, the clamp and float mechanism for sampling comprising:

a mounting frame;

the first end of the clamping and clasping device is used for clamping or loosening the swab;

the sliding guide device is installed on the installation frame, a first end portion of the sliding guide device is connected with a second end portion of the clamping and clasping device, the sliding guide device is connected with the installation frame through a spring, and the spring is located in the sliding direction of the sliding guide device.

12. The clamping and floating mechanism for sampling according to claim 11, further comprising a distance measuring sensor and a detecting member, which are oppositely arranged, wherein the distance measuring sensor is mounted on the mounting frame, the detecting member is mounted on the sliding guide device or the clamping and holding device, and the distance measuring sensor is used for detecting the displacement of the detecting member;

13. The clamping floatation mechanism for sampling of claim 11, wherein the clamping clasping means comprises a clamping means for clamping the swab, connected to the drive means, and a drive means connected to the sliding guide means.

14. The clamp float mechanism for sampling of claim 13, wherein said slide guide means comprises a slide block and a slide track, said slide track being mounted on said mounting bracket, said slide block being mounted on said slide track for sliding movement therealong; one end of the sliding block is connected with the driving device.

15. The clamp float mechanism for sampling of claim 14, further comprising an upwardly extending mounting plate on said mounting bracket, said spring having one end connected to said mounting plate and another end connected to said slide.

16. The clamp float mechanism for sampling of claim 13, wherein said clamping means comprises at least one pair of clamping assemblies, each of said clamping assemblies comprising a clamping portion and a connecting portion, said connecting portion being fixed on an outer side surface of said clamping portion, said connecting portion being connected to said drive means.

17. A swab sampling action apparatus, wherein the swab sampling action apparatus employs the holding and floating mechanism for sampling as claimed in any one of claims 1 to 16.