Click sampling device

Abstract

The utility model discloses a click sampling device which comprises a rack and a lifting mechanism mounted on the rack, the sampling mechanism is detachably mounted at the lower end of the lifting mechanism, and the sampling mechanism is used for mounting a sticking device; and the driving mechanism is used for driving the lifting mechanism to reciprocate in the vertical direction. The device has the beneficial effects that the lifting mechanism controlled by the driving mechanism and the sampling mechanism arranged at the lower end of the lifting mechanism are arranged, and the sampling mechanism drives the sticking device to quickly click an object to be detected in a reciprocating motion process, so that the sampling efficiency of experimenters is remarkably improved; and the sampling mechanism is detachable, so that an experimenter can conveniently take out the sampling mechanism and take down a sticking device on the sampling mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of criminal investigation sampling equipment, in particular to a click sampling device. Background Art

[0002] An exfoliated cell picker is a tool that uses special adhesive tape to directly or indirectly pick up human epithelial exfoliated cells for DNA extraction. It is mainly used for on-site investigations of criminal cases and forensic laboratory evidence extraction. According to the sampling procedures, during the sampling stage, the experimenter needs to hold the base of the picker, align the adhesive surface with the area to be extracted, and repeatedly pick it up about 10 times to ensure that the exfoliated cells are fully collected. However, for the task of extracting exfoliated cells from large areas of fabric, the area that needs to be sampled is extremely large, and the experimenter may even need to hold the picker and click it continuously for tens of thousands of times, which slows down the work progress and makes it easy to miss certain sampling areas. Utility Model Content

[0003] In view of the above problems, the present invention proposes a click sampling device, which mainly solves the problem that the existing exfoliated cell adhesive collector has no automatic click sampling function.

[0004] In order to solve the above technical problems, the technical solutions of the present utility model are as follows:

[0005] A click sampling device, comprising:

[0006] A platform, and a lifting mechanism installed on the platform;

[0007] A sampling mechanism is detachably mounted on the lower end of the lifting mechanism, and is used to mount a sticking device;

[0008] The driving mechanism is used to drive the lifting mechanism to reciprocate in the vertical direction.

[0009] In some embodiments, the lifting mechanism includes a connecting bracket connected to the driving mechanism, a slider is installed on at least one side end of the connecting bracket, a slide rail that cooperates with the slider is installed on the inner side wall of the platform, and the sampling mechanism is installed on the lower end of the connecting bracket.

[0010] In some embodiments, the connecting bracket includes a connecting plate, connecting arms respectively arranged on both sides of the upper end surface of the connecting plate, and a hinged portion fixed at the top end of the connecting arm. The driving mechanism includes a motor, the rotating shaft of the motor is fixedly connected to the rotating pair of the connecting rod mechanism, and the moving pair of the connecting rod mechanism is hinged to the hinged portion.

[0011] In some embodiments, the link mechanism includes a first link and a second link, one end of the second link is hinged to a non-rotating axis position of the first link, and the other end of the second link is hinged to the hinge portion.

[0012] In some embodiments, the second connecting rod includes a first rod body and a second rod body that are detachably mounted.

[0013] In some embodiments, the sampling mechanism includes a fixing portion, a connecting portion arranged at the lower end of the fixing portion, a fixing plate arranged at the lower end of the connecting portion, and a frustum arranged at the lower end of the fixing plate and distributed in an array, and also includes a accommodating portion arranged at the lower end of the connecting bracket, wherein the open end of the accommodating portion is arranged on its own side, and an avoidance portion is provided at the lower end of the accommodating portion, the accommodating portion allows the fixing portion to be slid in or out in a horizontal direction, there is no motion interference between the connecting portion and the avoidance portion, and the frustum is used for the adhesive to be inserted.

[0014] In some embodiments, a stripping plate and an extension rod installed on the upper end surface of the stripping plate are also included, and the width of the stripping plate is smaller than the width of the fixed plate. The surface of the stripping plate is provided with a plurality of first avoidance holes corresponding to the frustum, and the aperture of the first avoidance hole is transitionally matched with the frustum. The surface of the fixed plate is provided with a second avoidance hole for avoiding the extension rod, wherein the extension rod is inserted upward into the second avoidance hole, and the frustum is exposed from the bottom of the first avoidance hole, and a limit piece is installed on the top end after the outer side of the extension rod is inserted into the compression spring.

[0015] In some embodiments, a locking piece is further included. A first fixing hole is provided at the center of the connecting plate, a second fixing hole is provided at the top of the fixing portion, and the locking piece passes through the first fixing hole and the second fixing hole in sequence.

[0016] In some embodiments, the frustum is made of elastic material.

[0017] In some embodiments, a handle is installed on the top of the stand.

[0018] The beneficial effects of the present invention are as follows: by providing a lifting mechanism controlled by a driving mechanism, and a sampling mechanism provided at the lower end of the lifting mechanism, the sampling mechanism drives the sticking device to quickly click on the object to be detected during the reciprocating motion, thereby significantly improving the sampling efficiency of the experimenter; and the sampling mechanism is detachable, which makes it convenient for the experimenter to take it out and remove the sticking device on the sampling mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The three-dimensional click sampling device disclosed in the embodiment of the utility model Figure 1 ;

[0020] Figure 2 The three-dimensional click sampling device disclosed in the embodiment of the utility model Figure 2 ;

[0021] Figure 3 The three-dimensional click sampling device disclosed in the embodiment of the utility model Figure 3 ;

[0022] Figure 4 This is a cross-section of the click sampling device disclosed in the embodiment of the utility model Figure 1 ;

[0023] Figure 5 This is a cross-section of the click sampling device disclosed in the embodiment of the utility model Figure 2 ;

[0024] Figure 6 This is an exploded view of the sampling mechanism disclosed in the embodiment of the present utility model;

[0025] Figure 7 This is a schematic diagram of the use status of the click sampling device disclosed in an embodiment of the present utility model;

[0026] Among them: 1-stand, 2-lifting mechanism, 3-sampling mechanism, 4-driving mechanism, 5-adhesive device, 6-locking piece, 7-handle, 11-slide rail, 21-connecting bracket, 22-slider, 23-accommodating part, 24-avoidance part, 31-fixing part, 32-connecting part, 33-fixing plate, 34-round table, 35-stripping plate, 36-extension rod, 37-first avoidance hole, 38-second avoidance hole, 39-compression spring, 211-connecting plate, 212-connecting arm, 213-hinge part, 214-first fixing hole, 310-limiting piece, 311-second fixing hole, 41-motor, 42-first connecting rod, 43-second connecting rod, 431-first rod body, 432-second rod body. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the drawings only illustrate portions relevant to the present invention, not all of it.

[0028] This embodiment proposes a click sampling device, such as Figure 1 As shown, including:

[0029] The platform 1 and the lifting mechanism 2 installed on the platform 1; the sampling mechanism 3 is detachably installed at the lower end of the lifting mechanism 2, and the sampling mechanism 3 is used to install the sticking device 5; the driving mechanism 4 is used to drive the lifting mechanism 2 to reciprocate in the vertical direction.

[0030] In this embodiment, a stand 1 is used to support a lifting mechanism 2, allowing the lifting mechanism 2, sampling mechanism 3, and picker 5 to be suspended in the air, leaving a certain space between the object to be detected and the picker 5. When the device is in operation, the user should first place the object to be detected under the stand 1, then activate the drive mechanism 4 to control the movement of the lifting mechanism 2, which drives the picker 5 to move up and down, thereby picking up exfoliated cells from the surface of the object to be detected. The number of pickers 5 can be selected and set according to actual conditions, specifically depending on the required detection area. In addition, the sampling mechanism 3 in this embodiment is detachable, making it convenient for the experimenter to remove it and remove the picker 5 from the sampling mechanism.

[0031] In the solution, the lifting mechanism 2 can be any mechanical mechanism that can perform reciprocating motion within a certain range. Figure 2 As shown, the lifting mechanism 2 includes a connecting bracket 21 connected to the driving mechanism 4. A slider 22 is mounted on at least one side of the connecting bracket 21. A slide rail 11 that cooperates with the slider 22 is mounted on the inner side wall of the platform 1. The sampling mechanism 3 is mounted on the lower end of the connecting bracket 21. In this example, by providing sliders 22 on both sides of the connecting bracket 21 and installing corresponding slide rails 11 on the inner side wall of the platform 1, the movement direction of the connecting bracket 21 is limited to the vertical direction through the mutually cooperating sliding structures.

[0032] In the above solution, the connecting bracket 21 is a structural member of the lifting mechanism 2. There is no special requirement for its specific structure, as long as it can remain unchanged during the vertical reciprocating motion. Figure 3As shown, the connecting bracket 21 includes a connecting plate 211, connecting arms 212 respectively arranged on both sides of the upper end surface of the connecting plate 211, and a hinge portion 213 fixed to the top of the connecting arm 212. The connecting plate 211 and the connecting arms 212 on both sides, as well as the hinge portion 213, form a stable triangular structure. On this basis, an optional driving mechanism 4 is also proposed, which includes a motor 41, the rotating shaft of the motor 41 is fixedly connected to the rotating pair of the connecting rod mechanism, and the moving pair of the connecting rod mechanism is hinged to the hinge portion 213. The connecting rod mechanism transmits the rotational motion generated by the motor 41 to the connecting bracket 21 through the hinge portion 213, driving the connecting bracket 21 to reciprocate in the vertical direction. In an optional solution, the connecting rod mechanism includes a first connecting rod 42 and a second connecting rod 43, one end of the second connecting rod 43 is hinged to a non-rotating axis position of the first connecting rod 42, and the other end of the second connecting rod 43 is hinged to the hinge portion 213. Alternatively, the connecting rod mechanism may be replaced by a cam mechanism, both of which can achieve the same function.

[0033] Considering that the thickness of some objects to be detected is too large or too small, the maximum height of the adhesive picker 5 from the ground may not be enough to support the placement of the objects to be detected. Figure 4 As shown, the second connecting rod 43 includes a detachable first rod body 431 and a second rod body 432. The two rod bodies can be connected by a thread, but it is necessary to ensure that the rotation axes of the two rod bodies are parallel to each other. The user only needs to replace one of the rod bodies to achieve the function of adjusting the height of the sticking device 5 (because the sticking device 5 is installed on the sampling mechanism 3, its height from the ground is actually affected by the lifting mechanism 2, the sampling mechanism 3 and the connecting rod mechanism and other components).

[0034] As another important invention of this solution, the number of the above-mentioned adhesive collectors 5 can be multiple to improve the work efficiency of the experimenter. The following provides a sampling mechanism 3 comprising multiple round platforms 34, through which the adhesive collectors 5 can be detachably fixed. This device can collect exfoliated cells at multiple points at a time. In this example, continue to refer to Figure 4 The sampling mechanism 3 includes a fixing portion 31, a connecting portion 32 arranged at the lower end of the fixing portion 31, a fixing plate 33 arranged at the lower end of the connecting portion 32, and a frustum 34 arranged at the lower end of the fixing plate 33 and distributed in an array. It also includes a accommodating portion 23 arranged at the lower end of the connecting bracket 21, wherein the open end of the accommodating portion 23 is arranged on its own side, and an avoidance portion 24 is provided at the lower end of the accommodating portion 23. The accommodating portion 23 allows the fixing portion 31 to be slid in or out in the horizontal direction, and there is no motion interference between the connecting portion 32 and the avoidance portion 24. The frustum 34 is used for inserting the adhesive 5.

[0035] In the above scheme, since a plurality of adhesives 5 are provided on the lower end surface of the fixing plate 33 and the height of the adhesives 5 from the ground is generally set not to exceed 5 cm, the entire sampling mechanism 3 is set to a detachable structure, which makes it convenient for the experimenter to take out the sampling mechanism 3, turn the sampling mechanism 3 over, and install the adhesives 5 on the sampling mechanism 3 in batches. Specifically, the fixing portion 31 and the connecting portion 32 are in an inverted "T"-shaped structure as a whole. Before the installation process, the entire sampling mechanism 3 should be inverted first, and the sticking device 5 should be installed on the truncated cone 34. During the installation process, the fixing portion 31 is aligned with the accommodating portion 23 and inserted. During this process, the connecting portion 32 will pass through the avoidance portion 24, and finally the fixing plate 33 is suspended below the connecting bracket 21, and the array-distributed truncated cones 34 face downward. It should be noted that the truncated cone 34 described in this solution should have a shape that gradually narrows from top to bottom when in use to meet the installation requirements of the sticking device 5. Accordingly, the base of the sticking device 5 should also be provided with a concave truncated cone-shaped installation area according to the shape and size of the truncated cone 34. However, the above-mentioned sleeve arrangement of the truncated cone 34 and the sticking device 5 is only one of the optional installation structures proposed in this embodiment. Other installation structures, such as clamps, can be considered on the premise of achieving the function. When the sampling mechanism 3 needs to be disassembled, the fixing portion 31 is pulled out from the accommodating portion 23 and the sampling mechanism 3 is turned upside down again to facilitate taking out the adhesive dispenser 5 .

[0036] The sampling mechanism 3 needs to repeatedly hit the object to be detected during operation, and the high-frequency vibration generated by it can easily cause the sampling mechanism 3 to escape from the receiving portion 23. Furthermore, as Figure 5 As shown, a locking member 6 is also included, which is used to fix the sampling mechanism 3 to the lower end of the lifting mechanism 2. Based on the above solution, a first fixing hole 214 is provided at the center of the connecting plate 211, and a second fixing hole 311 is provided at the top of the fixing portion 31. The locking member 6 passes through the first fixing hole 214 and the second fixing hole 311 in sequence to install the fixing portion 31 on the connecting plate 211, limiting the displacement of the fixing portion 31 in any direction in the horizontal plane and preventing the fixing portion 31 from escaping from the accommodating portion 23. The locking member 6 can be a manual screw nut or other locking structure, which is not limited here.

[0037] As another preferred solution of this solution, Figure 6As shown, it also includes a stripper plate 35 and an extension rod 36 installed on the upper end surface of the stripper plate 35, and the width of the stripper plate 35 is smaller than the width of the fixed plate 33. The surface of the stripper plate 35 is provided with several first avoidance holes 37 corresponding to the truncated cone 34, and the aperture of the first avoidance hole 37 is transitionally matched with the truncated cone 34. The surface of the fixed plate 33 is provided with a second avoidance hole 38 for avoiding the extension rod 36. In the above scheme, the stripper plate 35 and the extension rod 36 are in a fixed connection relationship, and the two can be fixed by welding or screwing. Among them, the extension rod 36 is inserted upward into the second avoidance hole 38. Through the cooperation of the extension rod 36 and the second avoidance hole 38, the stripping plate 35 can only move vertically, and the frustum 34 is exposed from the bottom of the first avoidance hole 37. After the outer side of the extension rod 36 is inserted into the compression spring 39, the limit piece 310 is installed on the top end. In the absence of external interference, the two sides of the compression spring 39 respectively rest between the lower end of the limit piece 310 and the upper end of the fixed plate 33, which is manifested as an upward thrust applied to the limit piece 310. At the same time, the thrust is transmitted to the stripping plate 35 through the extension rod 36, pressing the stripping plate 35 tightly against the lower end of the fixed plate 33, thereby preventing the stripping plate 35 from interfering with the adhesive 5 when the device is working normally (that is, when it moves up and down). After completing the click sampling task, the experimenter can remove the entire sampling mechanism 3 and align the adhesive picker 5 with the container. Since the width of the stripper plate 35 is smaller than the width of the fixed plate 33, the experimenter can hold the fixed plate 33 with both hands except the thumb, and then press the limiter 310 with the thumb to move the stripper plate 35 downward. Figure 7 As shown, the first avoidance hole 37 contacts the picker 5 during its downward movement and squeezes it from the truncated table 34, and the picker 5 eventually falls into the container, completing the recovery of the picker 5. When the experimenter releases his thumb, the stripper plate 35 returns to its original position due to the rebound force of the compression spring 39.

[0038] Optionally, the round table 34 is made of elastic material to reduce the noise generated when the round table 34 and the adhesive remover 5 collide with the table top.

[0039] Optional, continue to see Figure 1 A handle 7 is installed on the top of the stand 1 to facilitate the experimenter to carry the device to the sampling site.

[0040] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the essence of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A click sampling device, characterized in that: include: A platform, and a lifting mechanism installed on the platform; A sampling mechanism is detachably mounted on the lower end of the lifting mechanism, and is used to mount a sticking device; The driving mechanism is used to drive the lifting mechanism to reciprocate in the vertical direction.

2. The click sampling device according to claim 1, wherein: The lifting mechanism includes a connecting bracket connected to the driving mechanism, a slider is installed on at least one side end of the connecting bracket, a slide rail cooperating with the slider is installed on the inner side wall of the platform, and the sampling mechanism is installed on the lower end of the connecting bracket.

3. The click sampling device according to claim 2, wherein: The connecting bracket includes a connecting plate, connecting arms respectively arranged on both sides of the end surface of the connecting plate, and a hinged part fixed on the top end of the connecting arm. The driving mechanism includes a motor, the rotating shaft of the motor is fixedly connected to the rotating pair of the connecting rod mechanism, and the moving pair of the connecting rod mechanism is hinged to the hinged part.

4. The click sampling device according to claim 3, wherein: The connecting rod mechanism includes a first connecting rod and a second connecting rod, one end of the second connecting rod is hinged to a non-rotating axis position of the first connecting rod, and the other end of the second connecting rod is hinged to the hinge portion.

5. The click sampling device according to claim 4, wherein: The second connecting rod includes a first rod body and a second rod body that can be detachably mounted.

6. The click sampling device according to claim 3, wherein: The sampling mechanism includes a fixing portion, a connecting portion arranged at the lower end of the fixing portion, a fixing plate arranged at the lower end of the connecting portion, and a frustum arranged at the lower end of the fixing plate and distributed in an array. It also includes a accommodating portion arranged at the lower end of the connecting bracket, wherein the open end of the accommodating portion is arranged on its own side, and an avoidance portion is provided at the lower end of the accommodating portion. The accommodating portion allows the fixing portion to be slid in or out in a horizontal direction, and there is no motion interference between the connecting portion and the avoidance portion. The frustum is used for the adhesive extractor to be inserted.

7. The click sampling device according to claim 6, wherein: It also includes a stripping plate and an extension rod installed on the upper end surface of the stripping plate, and the width of the stripping plate is smaller than the width of the fixed plate. The surface of the stripping plate is provided with a plurality of first avoidance holes corresponding to the frustum, the aperture of the first avoidance hole is transitionally matched with the frustum, and the surface of the fixed plate is provided with a second avoidance hole for avoiding the extension rod, wherein the extension rod is inserted upward into the second avoidance hole, and the frustum is exposed from the bottom of the first avoidance hole, and a limit piece is installed on the top end after the outer side of the extension rod is inserted into the compression spring.

8. The click sampling device according to claim 6, wherein: It also includes a locking piece. A first fixing hole is provided at the center of the connecting plate, a second fixing hole is provided at the top of the fixing portion, and the locking piece passes through the first fixing hole and the second fixing hole in sequence.

9. The click sampling device according to claim 6, wherein: The frustum is made of elastic material.

10. The click sampling device according to claim 1, wherein: A handle is installed on the top of the stand.

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