A sample bottle clamping device suitable for a manipulator

Abstract

The present invention relates to the technical field of clamps, and specifically discloses a sample bottle clamping device with high sample grabbing accuracy, good clamping stability and suitable for a manipulator. The sample bottle clamping device comprises a mounting seat, a rotating motor arranged on one side of the mounting seat, an electric cylinder arranged on the other side of the mounting seat and rotating under the control of the rotating motor, and a clamping claw mechanism installed at the output end of the electric cylinder. The clamping claw mechanism comprises a contact sensor installed at the output end of the electric cylinder and a plurality of clamping claws arranged in a ring around the contact sensor. The contact sensor is used to send instructions to the electric cylinder when contacting a sample to be grasped, and control the movement of the electric cylinder. The shape of the connecting part between each clamping claw and the sample is adapted to the surface shape of the sample. Each clamping claw is respectively driven by the electric cylinder to approach or move away from the center of the output end of the electric cylinder to clamp or release the sample together.

Description

Technical Field

[0001] The invention relates to the technical field of clamps, and in particular to a sample bottle clamping device suitable for a manipulator. Background Art

[0002] In the field of sample testing, it is often necessary to put the sample to be tested into a sample bottle for testing to avoid contamination of the sample, thereby ensuring the reliability of the test results. In the process of taking and placing the sample bottle for testing, it is often necessary to clamp the bottle and adjust the position of the sample bottle to facilitate recording the label on the sample bottle and transporting the sample bottle to the testing agency for testing, so as to obtain the corresponding test results. At present, the sample bottle to be tested is mainly grasped by a manipulator in cooperation with a clamp. Due to the small size of the sample bottle, the gripping accuracy of the clamp is difficult to control. It is often the case that the clamp is not aligned with the sample bottle and the sample bottle is grasped empty or the clamp is displaced too much to squeeze the sample bottle, thereby causing the sample bottle to be damaged, which is not conducive to improving the efficiency of taking and placing the sample bottle; the existing clamp is difficult to adapt to the sample bottle, resulting in insufficient clamping force between the clamp and the sample bottle, and the sample bottle is easy to fall off the clamp. The stability and reliability of the sample bottle taking and placing operation are poor. Summary of the invention

[0003] Based on this, it is necessary to provide a sample bottle clamping device with high sample grabbing accuracy, good grasping stability and suitable for a manipulator to address the technical problems of low sample grabbing accuracy and poor grasping stability.

[0004] A sample bottle clamping device suitable for a manipulator, the sample bottle clamping device suitable for a manipulator comprises a mounting seat, a rotating motor arranged on one side of the mounting seat, an electric cylinder arranged on the other side of the mounting seat and rotating under the control of the rotating motor, and a clamping jaw mechanism installed at the output end of the electric cylinder, the clamping jaw mechanism comprises a contact sensor installed at the output end of the electric cylinder and a plurality of clamping jaws arranged in a ring around the contact sensor, the contact sensor is used to send instructions to the electric cylinder when contacting a sample to be grasped, and control the movement of the electric cylinder, the shape of the connecting portion between each clamping jaw and the sample is adapted to the surface shape of the sample, and each clamping jaw is respectively driven by the electric cylinder to approach or move away from the center of the output end of the electric cylinder to jointly clamp or release the sample.

[0005] In one embodiment, the clamping jaw has a convex curved surface that matches the inner surface of the sample.

[0006] In one of the embodiments, the middle portion of the clamping jaw is bent toward the center of the output end of the electric cylinder to form a first bent portion.

[0007] In one embodiment, the clamping jaw has a concave curved surface that matches the outer surface of the sample.

[0008] In one of the embodiments, the middle portion of the clamping jaw is bent in a direction away from the center of the output end of the electric cylinder to form a second deflection portion.

[0009] In one of the embodiments, the portion where the clamp is connected to the sample is provided with anti-slip grooves.

[0010] In one embodiment, the number of the clamping jaws is 3, and the angle between adjacent clamping jaws is 120 degrees.

[0011] In one embodiment, the sample bottle clamping device also includes a guide tube, which is sleeved on the contact sensor and connected to the electric cylinder. The outer surface of the guide tube is provided with a plurality of guide grooves, and each of the clamping jaws is correspondingly clamped in one of the guide grooves and is slidably connected to the guide tube.

[0012] In one of the embodiments, a micro switch is provided on the mounting seat, and a limiting rubber block / column cooperating with the micro switch is provided on one end of the electric cylinder adjacent to the mounting seat to limit the rotation angle of the electric cylinder.

[0013] The sample bottle clamping device of the present invention is implemented by arranging a contact sensor at the center part surrounded by each clamping jaw. During the process of grabbing the sample, when the contact sensor contacts the sample, the contact sensor sends a command to the electric cylinder and controls the electric cylinder to work. The electric cylinder then controls the clamping jaws to move inward or outward together to clamp the outer surface or inner surface of the sample to achieve the clamping of the sample, so as to facilitate the inspection or other operations on the sample bottle. The setting of the contact sensor avoids the problem of sample damage caused by excessive force on the sample due to the clamping jaws grabbing empty samples or the overlapping area with the sample being too large when grabbing the sample, thereby improving the grabbing accuracy of the sample bottle clamping device; and the shape of the connecting part between the clamping jaw and the sample is adapted to the surface shape of the sample, which is beneficial to increase the contact area between the clamping jaw and the object to be grasped, and improve the stability of the grasping and the reliability of the sample placement operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a sample bottle clamping member in one embodiment of the present invention;

[0015] Figure 2 It is a schematic structural diagram of a sample bottle clamping member in another embodiment of the present invention;

[0016] Figure 3 It is a schematic structural diagram of a sample bottle clamping device in one embodiment of the present invention;

[0017] Figure 4 It is a schematic diagram of the exploded structure of a sample bottle clamping device in one embodiment of the present invention;

[0018] Figure 5 A schematic diagram of the structure of a micro switch in one embodiment of the present invention;

[0019] Figure 6 A schematic diagram of the positional relationship between the limit plate and the clamping claws in one embodiment of the present invention;

[0020] Figure 7 A schematic diagram of the structure of a clamping jaw in one embodiment of the present invention;

[0021] Figure 8 It is a schematic diagram of the structure of the clamp in another embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0023] See also Figure 1 The present invention first provides a sample bottle clamp 10 that can be matched with a sample bottle to be tested and is convenient for the sample bottle clamp device 20 to grasp. The sample bottle clamp 10 includes a tube 110 with a sealing plate 120 in the middle. For example, the sealing plate 120 and the tube 110 are integrally formed. One end of the tube 110 is provided with a positioning column 130 connected to the sealing plate 120 and used to indicate the position where the external sample bottle clamp device 20 extends. The other end of the tube 110 is provided with a clamping portion that abuts against the inner surface or outer surface of the mouth of the sample bottle to clamp the mouth of the sample bottle. The sealing plate 120 is used to seal the mouth of the sample bottle to prevent impurities from entering the sample bottle and interfering with the test results of the sample. It can be understood that the sample bottle clamp 10 of the present invention is actually a bottle stopper, which not only blocks the mouth of the sample bottle, but also provides a connection part for the external robot to grasp, thereby realizing stable grasping of the sample bottle. The use of the sample bottle clamp 10 can avoid the occurrence of sample bottle breakage caused by direct contact between the robot and the sample bottle.

[0024] In one embodiment, the clamping part is a rubber column 140 with an annular protrusion 141 on the outer surface or a rubber ring with an annular protrusion 141 and a closed end. In this way, during the installation of the sample bottle clamp 10, it is only necessary to insert the rubber column or the rubber ring into the mouth of the sample bottle so that the annular protrusion 141 is in close contact with the inner surface of the sample bottle, thereby achieving the sealing of the mouth of the sample bottle and the firm connection between the sample bottle clamp 10 and the sample bottle.

[0025] See also Figure 2In another embodiment, the clamping portion is a plurality of grippers 150 annularly arranged on the end surface of the tube 110, and each gripper 150 has a protrusion 151 that cooperates with the outer edge of the sample bottle. Preferably, the number of grippers 150 is three, five or six, or more. Specifically, during the installation process of the sample bottle clamp 10, it is only necessary to sleeve the clamping portion on the bottle mouth of the sample bottle so that the protrusion 151 of each gripper 150 abuts against the outer edge of the bottle mouth of the sample bottle, that is, to achieve the sealing of the bottle mouth of the sample bottle and the firm connection between the sample bottle clamp 10 and the sample bottle. It should be noted that in this embodiment, the bottom of the protrusion 151 is provided with an inclined portion 152, so that when removing the sample bottle clamp 10, it is only necessary to press the inclined portion 152 of the protrusion 151 to peel the gripper 150 from the sample bottle, so as to reduce the difficulty of disassembling the sample bottle clamp 10.

[0026] It should be noted that in actual production, the positioning column 130 can be designed to have different heights. When the types of samples installed in the sample bottles are different, sample bottle clamps 10 with different positioning column 130 heights can be selected to seal the bottle mouths of the corresponding sample bottles. In this way, in the process of the manipulator grabbing the sample bottles, the external drive device can determine whether they are the same sample to be tested by the manipulator's descent depth, that is, the distance between the manipulator and the end of the positioning column 130, so as to eliminate incorrectly placed sample bottles, thereby improving the effectiveness of the detection operation and the reliability of the detection results.

[0027] See also Figure 3 and Figure 4The present invention also provides a sample bottle clamping device 20 which has high sample grabbing accuracy, good clamping stability and is suitable for a manipulator. The sample bottle clamping device 20 suitable for a manipulator includes a mounting seat 210, a rotating motor 220 arranged on one side of the mounting seat 210, an electric cylinder 230 arranged on the other side of the mounting seat 210 and rotating under the control of the rotating motor 220, and a clamping claw mechanism 240 installed at the output end of the electric cylinder 230. The clamping claw mechanism 240 includes a contact sensor 241 installed at the output end of the electric cylinder 230 and a plurality of clamping claws 242 arranged in a ring around the contact sensor 241. The contact sensor 241 is used to send instructions to the electric cylinder 230 when contacting the sample to be grasped, and control the action of the electric cylinder 230. For example, when the contact sensor 241 contacts the end of the positioning column 130 of the sample bottle holder 10, the contact sensor 241 determines that the clamping jaw 242 has been inserted into the inner cavity of the tube 110 or has been covered on the outer surface of the tube 110, so as to further send instructions to the electric cylinder 230 to control the movement of the clamping jaw 242. The shape of the connection part between each clamping jaw 242 and the sample is adapted to the surface shape of the sample. For example, when the clamping jaw 242 contacts the inner surface of the tube 110 or the outer surface of the tube 110, the shape of the side of the clamping jaw 242 facing the tube 110 is adapted to the outer surface or the shape of the outer surface of the tube 110, and the clamping jaw 242 is closely attached to the surface of the tube 110, thereby increasing the contact area between the clamping jaw 242 and the tube 110, thereby improving the stability of the connection between the clamping jaw 242 and the tube 110. Each clamping jaw 242 is driven by the electric cylinder 230 to move closer to or farther from the center of the output end of the electric cylinder 230 to clamp or release the sample together. The sample of the present invention refers to the sample bottle clamp 10 installed on the sample bottle or other accessories connected to the sample bottle, which will not be described in detail here.

[0028] The sample bottle clamping device 20 of the present invention is implemented by setting a contact sensor 241 at the central part surrounded by each clamping claw 242. During the process of grabbing the sample, when the contact sensor 241 contacts the sample, the contact sensor 241 sends a command to the electric cylinder 230 and controls the electric cylinder 230 to work. The electric cylinder 230 controls the clamping claws 242 to move inward or outward together to clamp the outer surface or inner surface of the sample to achieve the clamping of the sample, so as to facilitate the detection or other operations on the sample bottle. The setting of the contact sensor 241 avoids the problem of sample damage caused by excessive force on the sample due to the clamping claws 242 grabbing the sample or the overlapping area with the sample being too large, thereby improving the grabbing accuracy of the sample bottle clamping device 20; and the shape of the connecting part between the clamping claws 242 and the sample is adapted to the surface shape of the sample, which is beneficial to increase the contact area between the clamping claws 242 and the object to be grasped, and improve the stability of the grasping and the reliability of the sample placement operation.

[0029] The mounting base 210 is used to connect with an external traction mechanism, such as a fixed connection with an external manipulator, and is used to further drive the remaining components to adjust their positions under the drive of the external traction mechanism, so as to grab and change the position of the sample bottle to be tested. Figure 3 and Figure 5 In one embodiment, a micro switch 250 is provided on the mounting seat 210, and a limit rubber block / column 231 cooperating with the micro switch 250 is provided on one end of the electric cylinder 230 adjacent to the mounting seat 210, so as to limit the rotation angle of the electric cylinder 230. Specifically, when the electric cylinder 230 rotates under the drive of the rotary motor 220, when the limit rubber block / column 231 moves to the position of the micro switch 250, the limit rubber block / column 231 will hit the reed 251 of the micro switch 250, and the reed 251 will produce elastic deformation due to the impact and further press the moving contact 252 of the micro switch 250, so that the micro switch 250 is actuated and controls the rotary motor 220 to stop, so as to avoid the output end of the rotary motor 220 and the electric cylinder 230 from rotating too much, causing the problem of the line group being entangled or broken, so as to ensure the effective use of the sample bottle clamping device 20.

[0030] The rotating motor 220 is used to drive the electric cylinder 230 and the clamping jaw 242 to rotate. For example, a reciprocating forward and reverse servo motor can be used to drive the electric cylinder 230 and the clamping jaw 242 to rotate. In this way, the sample bottle rotates synchronously under the drive of the clamping jaw 242, and the label attached to the sample bottle will be exposed to the scanning range of the external barcode scanner, which is conducive to the barcode scanner reading the label information on the sample bottle and facilitating the centralized management of the detection data. In one embodiment, a reduction motor 260 is provided between the rotating motor 220 and the electric cylinder 230, and the reduction motor 260 is installed on the mounting seat 210. A shock absorbing spring 261 is provided between the reduction motor 260 and the mounting seat 210 to reduce the vibration generated by the rotating motor 220 and the reduction motor 260 when they are impacted by external forces. By providing the reduction motor 260, the rotation speed of the electric cylinder 230 is reduced, that is, the rotation speed of the clamping jaw 242 is reduced, the sample bottle is prevented from falling off the clamping jaw 242, and it is conducive to the external barcode scanner to effectively obtain the label information on the sample bottle, thereby improving the reliability of the barcode scanning operation.

[0031] The electric cylinder 230 is used to receive the command action of the contact sensor 241, and drive the clamping jaws 242 to retract or expand, so as to clamp the sample bottle clamp 10 installed on the sample bottle to be tested. In one embodiment, the electric cylinder 230 is driven and connected to the output end of the rotating motor 220 through the mounting frame 270. Specifically, the mounting frame 270 has a accommodating space 271, and the electric cylinder 230 is accommodated in the accommodating space 271 and fixedly connected to the mounting frame 270. One end of the mounting frame 270 is driven and connected to the output end of the rotating motor 220, and the other end of the mounting frame has a limiting plate 272 connected to the output end of the electric cylinder 230. Each clamping jaw 242 slides relative to the limiting plate 272 under the drive of the electric cylinder 230 to increase or decrease the space enclosed by each clamping jaw 242 to achieve stable clamping of the sample bottle. Please combine Figure 3 and Figure 6 In one embodiment, a plurality of limiting guide grooves 272a are provided on the limiting plate 272 from the center to the edge thereof, and a slider 273 corresponding to a clamping jaw 242 is provided in each limiting guide groove 272a. The slider 273 is used to drive the clamping jaw 242 to approach or move away from the center of the limiting plate 272 under the action of the output end of the electric cylinder 230, so as to clamp the sample bottle. In one embodiment, the number of the clamping jaws 242 is 3, and the angle between adjacent clamping jaws 242 is 120 degrees. Further, each slider 273 is respectively meshed and connected with the gears provided in the limiting guide groove 272a. In this way, the limiting plate 272, the slider 273 and the clamping jaw 242 form a three-jaw centering chuck. The clamping jaw 242 is driven by the output end of the electric cylinder 230 to realize self-centering, and has good stability. In other words, the stability of the clamping jaw 242 when grasping the sample bottle clamping member 10 is improved, and the efficiency of the sample placement operation is improved. Of course, in actual production, the number of the clamping jaws 242 is not limited to 3, and can also be other numbers, which will not be elaborated here.

[0032] The contact sensor 241 is also called a contact sensor, which is used to change the level when it contacts the positioning column 130, and then send an electrical signal to the electric cylinder 230 to drive the electric cylinder 230 to move. Specifically, after the contact sensor 241 contacts the sample to be grasped, the contact sensor 241 further determines that the sample has been grasped on the basis of judging that it is in contact with the sample. The standard for judging the grasping is adjusted before the operation, and the tension of the clamping jaw 242 reaches a specific tension value. In this case, the level of the contact sensor 241 changes, thereby sending an electrical signal to the electric cylinder 230 to drive the electric cylinder 230 to move. Please refer to Figure 4In one embodiment, the sample bottle clamping device 20 further includes a guide tube 280, which is sleeved on the contact sensor 241 and connected to the electric cylinder 230. The outer surface of the guide tube 280 is provided with a plurality of guide grooves 281, and each clamping jaw 242 is correspondingly clamped in a guide groove 281 and slidably connected to the guide tube 280. By providing the guide tube 280, on the one hand, the contact sensor 241 is protected to prevent the clamping jaw 242 or other foreign objects from hitting the contact sensor 241 and causing the contact sensor 241 to be damaged. On the other hand, the provision of the guide tube 280 limits the movement path of the clamping jaw 242 to avoid shaking during the movement of the clamping jaw 242, thereby improving the reliability of the movement of the clamping jaw 242.

[0033] The clamping jaws 242 are used to grab the sample bottle holder 10. Specifically, the plurality of clamping jaws 242 cooperate to clamp the tube 110 of the sample bottle holder 10 to facilitate adjustment of the position of the sample bottle. Figure 7 In one embodiment, the clamping jaw 242 has a convex arc surface 242a that matches the inner surface of the sample. It can be understood that during the process of taking and placing the sample bottle, the clamping jaw 242 extends into the inner cavity of the tube 110. When the contact sensor 241 contacts the positioning column 130, the contact sensor 241 controls the electric cylinder 230 to work, further pushing the clamping jaw 242 to slide away from the center of the limit plate 272 until the clamping jaw 242 abuts against the inner surface of the tube 110, that is, the tube 110 is clamped. Furthermore, the middle part of the clamping jaw 242 is deflected toward the center of the output end of the electric cylinder 230, that is, toward the center of the limiting plate 272 to form a first deflection portion 242b. In this case, the end of the clamping jaw 242 away from the limiting plate 272 is slidably connected to the guide tube 280. In this way, the end of each clamping jaw 242 away from the limiting plate 272 is close to the guide tube 280, and the size of this end is smaller, so as to facilitate the delivery of each clamping jaw 242 into the inner cavity of the tube 110.

[0034] See also Figure 8In another embodiment, the clamping jaws 242 have a concave arc surface 242c that matches the outer surface of the sample. It can be understood that during the process of taking and placing the sample bottle, each clamping jaw 242 is located on the outer side of the tube 110. When the contact sensor 241 contacts the positioning column 130, the contact sensor 241 controls the electric cylinder 230 to work, further pushing the clamping jaws 242 to slide in the direction close to the center of the limit plate 272 until the clamping jaws 242 abut against the outer surface of the tube 110, that is, the tube 110 is clamped. Furthermore, the middle part of the clamping jaw 242 is deflected in a direction away from the center of the output end of the electric cylinder 230, that is, away from the center of the limiting plate 272 to form a second deflection portion 242d. In this case, the end of the clamping jaw 242 close to the limiting plate 272 is slidably connected to the guide tube 280. In this way, while ensuring that each clamping jaw 242 is covered on the outer surface of the tube 110 and guiding the clamping jaw 242, it is beneficial to reduce the overall volume of the limiting plate 272, that is, reduce the weight of the limiting plate 272, so as to weaken the influence of the weight of the limiting plate 272 on the movement of the external manipulator.

[0035] It should be noted that the structure of the connection part between the clamp 242 and the sample, that is, the connection part between the clamp 242 and the tube 110 of the present invention is not limited to the convex arc surface 242a or the concave arc surface 242c mentioned above. It is determined according to the shape of the inner surface or the outer surface of the tube 110, and the connection between the clamp 242 and the tube 110 is based on the absence of a gap or a small gap, so as to achieve the purpose of increasing the contact area between the clamp 242 and the sample. It will not be repeated here. In one embodiment, the part where the clamp 242 and the sample are connected is provided with an anti-skid pattern 242e. By providing the anti-skid pattern 242e at the part where the clamp 242 and the sample are connected, that is, at the part where the clamp 242 and the tube 110 are connected, the friction between the clamp 242 and the sample is increased, and the sample is prevented from falling off the clamp 242, so as to improve the reliability of the sample placement operation.

[0036] In one embodiment, the extrusion pressure that the tube 110 or other accessories of the same material can withstand can be tested in advance, and the relationship between the moving distance of the clamping jaw 242 relative to the limit plate 272 and the extrusion pressure can be fitted by a computer, and the movement of the electric cylinder 230 can be regulated with the help of a corresponding controller. In this way, the extrusion pressure of the clamping jaw 242 on the tube 110 can be controlled to improve the reliability of the sampling operation.

[0037] It should be noted that the use of the sample bottle clamping device 20 of the present invention is not limited to the cooperation with the sample bottle clamping device 10 disclosed in the present invention. It can also be combined with other accessories with positioning parts and can seal the sample bottle to achieve the transfer of the sample bottle position, which will not be repeated here.

[0038] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A sample bottle clamping device (20) suitable for a manipulator, comprising a mounting seat (210), a rotating motor (220) arranged on one side of the mounting seat (210), an electric cylinder (230) arranged on the other side of the mounting seat (210) and rotating under the control of the rotating motor (220), and a clamping claw mechanism (240) installed at the output end of the electric cylinder (230), characterized in that: The clamping mechanism (240) comprises a contact sensor (241) installed at the output end of the electric cylinder (230) and a plurality of clamping jaws (242) arranged in a ring around the contact sensor (241); the contact sensor (241) is used to send instructions to the electric cylinder (230) when contacting a sample to be grasped, and control the action of the electric cylinder (230); the shape of the connection portion between each clamping jaw (242) and the sample is adapted to the surface shape of the sample; each clamping jaw (242) is respectively driven by the electric cylinder (230) to approach or move away from the center of the output end of the electric cylinder (230) to jointly clamp or release the sample; The clamping jaw (242) has a convex arc surface (242a) that matches the inner surface of the sample; The middle portion of the clamping claw (242) is bent toward the center of the output end of the electric cylinder (230) to form a first bent portion (242b); The clamping jaw (242) has a concave arc surface (242c) that matches the outer surface of the sample; The middle portion of the clamping claw (242) is bent in a direction away from the center of the output end of the electric cylinder (230) to form a second bent portion (242d).

2. The sample bottle clamping device (20) according to claim 1, characterized in that: The portion where the clamping jaw (242) is connected to the sample is provided with anti-slip grooves (242e).

3. The sample bottle clamping device (20) according to claim 2, characterized in that: The number of the clamping jaws (242) is 3, and the angle between adjacent clamping jaws (242) is 120 degrees.

4. The sample bottle clamping device (20) according to claim 2, characterized in that: The sample bottle clamping device (20) also includes a guide tube (280), which is sleeved on the contact sensor (241) and connected to the electric cylinder (230). The outer surface of the guide tube (280) is provided with a plurality of guide grooves (281), and each of the clamping jaws (242) is correspondingly clamped in one of the guide grooves (281) and is slidably connected to the guide tube (280).

5. The sample bottle clamping device (20) according to claim 2, characterized in that: A micro switch (250) is provided on the mounting seat (210), and a limiting rubber block / column (231) cooperating with the micro switch (250) is provided on one end of the electric cylinder (230) adjacent to the mounting seat (210) for limiting the rotation angle of the electric cylinder (230).

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