Test tube fixing device

Abstract

The utility model discloses a test tube fixing device, and relates to the technical field of test tube sampling equipment. The supporting seat is arranged on the conveying guide rail in a sliding mode and can be driven to move along the conveying guide rail, the limiting mechanism is arranged on the conveying guide rail and comprises two movable side plates, the two movable side plates are symmetrically arranged on the two sides of the conveying guide rail, and the movable side plates are connected with the conveying guide rail in a sliding mode; the two movable side plates can be synchronously driven to move in the direction close to the conveying guide rail, so that the elastic limiting assemblies on the two movable side plates move oppositely to abut against the test tubes. According to the test tube fixing device, the technical problems that an existing test tube fixing device can only centralize test tubes with fixed tube diameters and is small in application range are solved, test tubes of different models and sizes are centralized through the first supporting springs and the limiting blocks arranged on the two sides of the conveying guide rail, and the application range of the whole device is effectively widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to test tube sampling equipment technical field, especially in test tube fixing device. BACKGROUND

[0002] In order to guarantee the action of liquid extraction needle insertion test tube and sample extraction, it must be guaranteed that the test tube is vertical relative to the support seat, if the test tube is inclined in the support seat, it can cause the sampling needle to hit the inner wall of the test tube when extracting liquid, resulting in the failure of sampling action. At present, the prior art discloses a test tube righting and rotating device, which realizes righting of the test tube before rotating the test tube, and reduces the probability of random deflection of the target test tube in the test tube rack.

[0003] However, the test tube righting and rotating device righting mechanism righting test tube from the side, righting test tube through two rollers, the position of two rollers is fixed, resulting in only righting test tube of fixed pipe diameter, the scope of application is smaller, and the practicability is poor, and the test tube righting and rotating device can not be stably positioned after righting, and the test tube is prone to shifting when extracting liquid, resulting in unsuccessful sampling. Therefore, a test tube fixing device for solving the above problems is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a test tube fixing device, which solves the technical problem that the existing test tube fixing device can only right test tubes of fixed pipe diameter and has a small scope of application.

[0005] To achieve the above purpose, the utility model provides a test tube fixing device, which comprises:

[0006] A conveying guide rail;

[0007] A support seat is slidably arranged on the conveying guide rail, and the support seat can be driven to move along the conveying guide rail. The support seat is used for placing test tubes,

[0008] A limiting mechanism is arranged on the conveying guide rail, and the limiting mechanism comprises:

[0009] Two movable side plates are symmetrically arranged on both sides of the conveying guide rail, and the movable side plates are slidably connected to the conveying guide rail;

[0010] An elastic limiting assembly is arranged on the top of the movable side plate, and the two movable side plates can be synchronously driven to move towards the conveying guide rail, so that the elastic limiting assemblies on the two movable side plates move towards each other to abut against the test tube.

[0011] Preferably, the elastic limiting assembly comprises:

[0012] A first mounting plate is arranged on the top of the movable side plate;

[0013] A first supporting spring, a first end of the first supporting spring is connected to a side of the first mounting plate facing the conveying rail, and a second end of the first supporting spring is connected to a limiting block.

[0014] Preferably, a V-shaped groove is arranged on a side of the limiting block, and the V-shaped groove is used for abutting against an outer sidewall of the test tube.

[0015] Preferably, a plurality of guide holes are arranged on a side of the first mounting plate, a first guide column is arranged on a side of the limiting block facing the first mounting plate, and the first guide column is slidingly connected to the guide holes.

[0016] Preferably, an assembly frame is arranged on the conveying rail, a guide sliding rail is arranged on the assembly frame, sliding blocks are slidingly connected to two sides of the guide sliding rail, a first force plate is connected to a side of the sliding block, a second force plate is connected to a bottom surface of the sliding block, and the first force plate is connected to the assembly frame through a second supporting spring.

[0017] Preferably, a second mounting plate is connected to a bottom of the assembly frame, a driving device is arranged on a bottom surface of the second mounting plate, a bearing mounting plate is sleeved on an output end of the driving device, two mounting shafts are symmetrically arranged on a top surface of the bearing mounting plate, cam bearings are sleeved on upper end portions of the mounting shafts, and outer circumferential sides of the cam bearings abut against the second force plate.

[0018] Preferably, a second guide column is arranged on a side of the assembly frame, a first end of the second guide column is connected to the assembly frame, and a second end of the second guide column is slidingly connected to the first force plate.

[0019] Preferably, a position sensor is arranged on the conveying rail, and the position sensor is used for detecting a position of the test tube on the conveying rail.

[0020] Preferably, a placing groove is arranged on a top surface of the support seat, and the placing groove is used for inserting the test tube.

[0021] Preferably, a plurality of limiting clamps are arranged in an array on a top surface of the support seat, and inner side surfaces of the limiting clamps abut against an outer sidewall of the test tube.

[0022] With respect to the above background art, the utility model provides a test tube fixing device has the following beneficial effect: support seat drives test tube to move to the position of limiting mechanism, synchronous drive two moving side plates to the direction of close to the direction of movement of conveying guide rail, make two elastic limit components on moving side plate move to abut test tube, according to the model and size of test tube, two elastic limit components adaptively adjust the telescopic length of self, thereby to the test tube of different model and size is righted, effectively improve the application range of overall device, and through two elastic limit components to test tube is sustained clamping action, can ensure that test tube always keeps stable when pumping, effectively improve the success rate of sampling. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only the embodiment of the utility model, and for those skilled in the art, under the premise of not creating laboriously, other drawings can also be obtained according to the provided drawings.

[0024] Figure 1 The assembly schematic view of the test tube fixing device provided by the utility model embodiment on the conveying guide rail is shown in the figure.

[0025] Figure 2 The perspective view of the test tube fixing device provided by the utility model embodiment is shown in the figure.

[0026] Figure 3 The explosion schematic view of the test tube fixing device provided by the utility model embodiment is shown in the figure.

[0027] Figure 4 The explosion schematic view of the test tube fixing device provided by the utility model embodiment is shown in the figure.

[0028] Figure 5 The Figure 4 The enlarged schematic view of A in the figure.

[0029] Specifically, 1-conveying guide rail;2-support seat;201-placing groove;202-limiting clamp;3-test tube;4-moving side plate;5-elastic limit component;501-first mounting plate;502-first support spring;503-limiting block;504-V-shaped groove;505-guide hole;506-first guide column;6-assembly frame;7-guide slide rail;8-sliding block;9-first stress plate;10-second support spring;11-second mounting plate;12-driving device;13-bearing mounting plate;14-mounting shaft;15-cam bearing;16-second guide column;17-in-place sensor;18-second stress plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0031] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] As shown in Figure 1 , Figure 2 and Figure 3 , to achieve the above-mentioned purpose, the present application provides a test tube 3 righting and clamping device, comprising: a conveying guide rail 1, a support seat 2 and a limiting mechanism.

[0033] Among them, the support seat 2 is slidingly arranged on the conveying guide rail 1, and under the driving of the power device, the support seat 2 can be driven to move along the conveying guide rail 1 to drive the support seat 2 to the designated position, the support seat 2 is used for placing the test tube 3, and the test tube 3 is synchronously driven to the designated position with the support seat 2.

[0034] In addition, the limiting mechanism is arranged on the conveying guide rail 1, and the position of the limiting mechanism is also the position where the target test tube 3 is sampled, the limiting mechanism comprises: two moving side plates 4 symmetrically arranged on both sides of the conveying guide rail 1, the moving side plates 4 are slidingly connected with the conveying guide rail 1, specifically, the moving side plates 4 are vertically arranged, and the moving side plates 4 can reciprocally move along a direction perpendicular to the side surface of the conveying guide rail 1.

[0035] The top of each of the two moving side plates 4 is provided with an elastic limiting assembly 5, the elastic limiting assembly 5 has a certain elastic expansion capacity in the length direction, and after the elastic limiting assembly 5 is subjected to a length direction extrusion force, the elastic limiting assembly 5 can change its expansion length. In the initial state, the distance between the two moving side plates 4 is far, and the test tube 3 can smoothly pass between the two moving side plates 4 and not contact the two moving side plates 4, under the driving of the power device, the two moving side plates 4 can be synchronously driven to move towards the conveying guide rail 1, so that the elastic limiting assemblies 5 on the two moving side plates 4 move towards each other to abut against the test tube 3, according to the model and size of the test tube 3, the two elastic limiting assemblies 5 adaptively adjust their expansion lengths, thereby righting test tubes 3 of different models and sizes, and effectively improving the application range of the overall device.

[0036] In order to improve the sampling efficiency of the test tube 3, a plurality of elastic limiting assemblies 5 can be arranged equidistantly on the top of the two moving side plates 4, specifically, three elastic limiting assemblies 5 are arranged equidistantly on the top of each moving side plate 4, and the three elastic limiting assemblies 5 can simultaneously right and clamp the test tube 3 on the three supporting seats 2 on the conveying guide rail 1, thereby improving the sampling efficiency of the test tube 3.

[0037] In use, after the supporting seat 2 drives the test tube 3 to move to the position of the limiting mechanism, under the driving of the power device, the two moving side plates 4 move synchronously towards the conveying guide rail 1, the moving side plates 4 drive the corresponding elastic limiting assemblies 5 to move towards each other, until the two elastic limiting assemblies 5 abut against the test tube 3, right the test tube 3, and at the same time, the two elastic limiting assemblies 5 continuously clamp the test tube 3, so that the test tube 3 can always remain stable during liquid extraction, and the success rate of sampling is improved.

[0038] In an embodiment of the utility model, the elastic limiting assembly 5 includes: a first mounting plate 501, the first mounting plate 501 is arranged on the top of the moving side plate 4, the length direction of the first mounting plate 501 is consistent with the length direction of the conveying guide rail 1, a plurality of first supporting springs 502 are arranged on the side of the first mounting plate 501 facing the conveying guide rail 1, one end of the first supporting spring 502 is connected with the first mounting plate 501, the other end of the first supporting spring 502 is connected with a limiting block 503, wherein each limiting block 503 is connected with two first supporting springs 502, when the two moving side plates 4 move towards each other, the limiting blocks 503 on the two moving side plates 4 are synchronously driven to move towards each other, until the limiting blocks 503 on the two moving side plates 4 abut against the outer side wall of the test tube 3 at the same time, right the test tube 3, at this time, the first supporting springs 502 on the two moving side plates 4 are in the contracted state, so as to ensure that the two limiting blocks 503 continuously clamp the test tube 3.

[0039] Preferably, a V-shaped groove 504 is arranged on the side of the limiting block 503, the V-shaped groove 504 is used for abutting against the outer side wall of the test tube 3, specifically, the side of the V-shaped groove 504 can be fitted with the outer side wall of the test tube 3, further improving the stability of the test tube 3 when clamped, preventing the test tube 3 from moving and deviating during liquid extraction.

[0040] It should be noted that a plurality of guide holes 505 are arranged on the side of the first mounting plate 501, the side of the limiting block 503 facing the first mounting plate 501 is provided with a first guide column 506, specifically, two first guide columns 506 are arranged on the side of each limiting block 503, wherein each first guide column 506 is coaxially arranged with a first supporting spring 502, the first guide column 506 is slidably connected with the guide hole 505, when the limiting block 503 reciprocates along the axis direction of the first guide column 506, the movement path of the limiting block 503 is limited and corrected, so as to improve the movement accuracy of the limiting block 503, and ensure that the limiting block 503 can accurately clamp the test tube 3 at the corresponding position.

[0041] In an embodiment of the utility model, the conveying guide rail 1 is provided with an assembly frame 6, two assembly frames 6 are symmetrically arranged on the two sides of the conveying guide rail 1, and the two assembly frames 6 are fixedly connected with the conveying guide rail 1, a guide sliding rail 7 is arranged between the two assembly frames 6, the length direction of the guide sliding rail 7 is perpendicular to the two side faces of the conveying rail, the two sides of the guide sliding rail 7 are slidably connected with sliding blocks 8, the side face of the sliding block 8 is connected with a first stress plate 9, and the first stress plate 9 is connected with the assembly frame 6 through a second supporting spring 10. Meanwhile, a second mounting plate 11 is connected at the bottom of the assembly frame 6, the bottom face of the second mounting plate 11 is provided with a driving device 12, that is, a power device. Preferably, the driving device 12 adopts a stepping motor, the angle of rotation of the stepping motor can be accurately controlled, has the advantage of high positioning accuracy, and ensures that the moving distance of the two moving side plates 4 always remains unchanged. On the one hand, it can prevent the limiting block 503 from not being in close contact with the test tube 3, so that the test tube 3 cannot be effectively righted. On the other hand, it can prevent the limiting block 503 from exerting too much force on the test tube 3, which can cause the test tube 3 to break and be damaged.

[0042] As Figure 4 and Figure 5As shown, the output end of the driving device 12 is sleeved with a bearing mounting plate 13, wherein the bearing mounting plate 13 is in a strip shape and can be fixedly and angularly rotated by the driving device 12, the top surface of the bearing mounting plate 13 is symmetrically provided with two mounting shafts 14, the two mounting shafts 14 are located at the two end portions of the bearing mounting plate 13, the upper end portion of the mounting shaft 14 is sleeved with a cam bearing 15, and the two cam bearings 15 located at the two end portions of the bearing mounting plate 13 are completely the same, the bottom surface of the sliding block 8 is provided with a second stress plate 18, the outer circumferential side surface of the cam bearing 15 abuts against the side surface of the second stress plate 18, and in the process of rotation of the bearing mounting plate 13, the two cam bearings 15 always abut against the side surface of one of the second stress plates 18, respectively. Specifically, in the initial state, the length direction of the bearing mounting plate 13 is perpendicular to the length direction of the conveying track, at this time, the two cam bearings 15 top the corresponding second stress plates 18, respectively, the second supporting spring 10 is in a contracted state, the distance between the two moving side plates 4 is far, and the test tube 3 can pass between the two moving side plates 4 and does not contact the two moving side plates 4. Under the driving of the power device, the bearing mounting plate 13 reversely rotates by a certain angle, in the process, the acute angle between the length direction of the bearing mounting plate 13 and the length direction of the conveying track gradually decreases, at this time, the second supporting spring 10 gradually elongates and top the corresponding first stress plate 9 to drive the sliding block 8 to move towards the conveying guide rail 1, the two second stress plates 18 move close to each other, and the two sliding blocks 8 drive the corresponding moving side plates 4 to synchronously move towards the test tube 3, so that the limiting blocks 503 on the two moving side plates 4 cooperatively and stably clamp the test tube 3.

[0043] When it is needed to release the test tube 3, the driving device 12 drives the bearing mounting plate 13 to forwardly rotate by a certain angle, in the process, the acute angle between the length direction of the bearing mounting plate 13 and the length direction of the conveying track gradually increases, the two cam bearings 15 continuously top the corresponding second stress plates 18, the second stress plates 18 drive the first stress plate 9 to synchronously move through the sliding block 8, so that the second supporting spring 10 is gradually compressed by the corresponding first stress plate 9 to have elastic potential energy, and the moving side plates 4 located at the two sides of the conveying track synchronously move away from each other under the driving of the sliding block 8 until the limiting blocks 503 no longer clamp the test tube 3.

[0044] Wherein, through the cooperation of the sliding block 8 and the guide slide rail 7, the movement path of the sliding block 8 can be limited and corrected to improve the movement accuracy of the sliding block 8, and further ensure the movement accuracy of the moving side plate 4, so that the limiting block 503 can accurately clamp the test tube 3 at the corresponding position. In addition, the second guide column 16 is arranged on the side surface of the assembly frame 6, the first end of the second guide column 16 is connected with the assembly frame 6, the second end of the second guide column 16 is slidably connected with the first stress plate 9, and the movement path of the first stress plate 9 can be limited and corrected through the second guide column 16, further improving the movement accuracy of the sliding block 8.

[0045] In one embodiment of the utility model, the conveying guide rail 1 is provided with a position sensor 17, the position sensor 17 is used for detecting the position of the test tube 3 on the conveying guide rail 1, when the support base 2 moves to the position where the limiting mechanism is located, that is, the test tube 3 can be stably clamped by the limiting block 503 at this time, at this time, the position sensor 17 sends the support base 2 in-place signal to the control system, and the sampling device samples the target test tube 3 clamped by the two limiting blocks 503. Specifically, the position sensor 17 is provided with three, the three position sensors 17 detect the positions of the three support bases 2 corresponding to the three elastic limiting assemblies 5 respectively, so as to ensure that the three elastic limiting assemblies 5 can accurately clamp the test tube 3 on the corresponding support base 2.

[0046] It should be noted that the top surface of the support base 2 is provided with a placing groove 201, the placing groove 201 is used for inserting the test tube 3, and the test tube 3 can be vertically placed on the support base 2. In addition, the top surface of the support base 2 is arrayed with a plurality of limiting clamps 202, after the test tube 3 is vertically inserted into the placing groove 201, the inner side surface of the limiting clamp 202 abuts against the outer side wall of the test tube 3, so that the test tube 3 is preliminarily limited, and the stability of the test tube 3 moving synchronously with the support base 2 is improved. Preferably, the top end part of the limiting clamp 202 is treated with edge lifting, so that the top end part of the limiting clamp 202 extends away from the axis of the test tube 3, and the test tube 3 is conveniently placed into the placing groove 201.

[0047] The working principle of the utility model is as follows: in the initial state, the distance between the two moving side plates 4 is far, the test tube 3 can smoothly pass between the two moving side plates 4 and does not contact the two moving side plates 4, after the support base 2 drives the test tube 3 to move to the position where the limiting mechanism is located, the driving device 12 drives the bearing mounting plate 13 to rotate reversely by a certain angle, in this process, the acute angle between the length direction of the bearing mounting plate 13 and the length direction of the conveying track gradually decreases, at this time, the two second support springs 10 gradually elongate and hold the corresponding first stress plates 9 to move towards the conveying guide rail 1, the two second stress plates 18 approach each other and always abut against the corresponding cam bearings 15, the two first stress plates 9 drive the corresponding sliders 8 to move synchronously, the two sliders 8 drive the corresponding moving side plates 4 to move synchronously towards the test tube 3, until the limiting blocks 503 on the two moving side plates 4 cooperate to stably clamp the test tube 3. The test tube 3 is righted, at the same time, the first support spring 502 is compressed by a certain length, so that the two limiting blocks 503 continuously clamp the test tube 3.

[0048] In conclusion, the first supporting spring 502 and the limiting block 503 arranged on both sides of the conveying guide rail 1 can right the test tubes 3 of different models and sizes, effectively improve the application range of the whole device, and through the cooperation of the first supporting spring 502 and the limiting block 503, the test tube 3 can be continuously clamped, so that the test tube 3 can always keep stable during liquid extraction, and the success rate of sampling can be effectively improved.

[0049] It should be noted that in the present specification, relational terms such as first and second are used solely to distinguish one entity from another without necessarily requiring or implying any actual relationship or order between such entities.

[0050] The principles and implementation modes of the present application are described by applying specific examples herein, and the above example is only used to help understand the method and core idea of the present application. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A test tube fixing device, characterized in that, include: Conveyor rails; A support base, slidably mounted on the conveyor rail, is driveable to move along the conveyor rail and is used to hold test tubes. A limiting mechanism is disposed on the conveying guide rail, the limiting mechanism comprising: Two movable side plates are symmetrically arranged on both sides of the conveying guide rail, and the movable side plates are slidably connected to the conveying guide rail; An elastic limiting component is disposed on the top of the movable side plate. The two movable side plates can be synchronously driven to move towards the conveying guide rail, so that the elastic limiting components on the two movable side plates move towards each other to abut against the test tube.

2. The test tube fixing device according to claim 1, characterized in that, The elastic limiting component includes: A first mounting plate is disposed on top of the movable side plate; A first support spring, the first end of which is connected to the side of the first mounting plate facing the conveying guide rail, and the second end of which is connected to a limiting block.

3. The test tube fixing device according to claim 2, characterized in that, The limiting block has a V-shaped groove on its side, which is used to abut against the outer wall of the test tube.

4. The test tube fixing device according to claim 3, characterized in that, The first mounting plate has several guide holes on its side, and the limiting block has a first guide post on the side facing the first mounting plate. The first guide post is slidably connected to the guide holes.

5. The test tube fixing device according to claim 1, characterized in that, An assembly frame is provided on the conveying guide rail, and a guide slide rail is provided on the assembly frame. Sliders are slidably connected to both sides of the guide slide rail. A first force plate is connected to the side of the slider, and a second force plate is connected to the bottom of the slider. The first force plate is connected to the assembly frame through a second support spring.

6. The test tube fixing device according to claim 5, characterized in that, The bottom of the assembly frame is connected to a second mounting plate. A driving device is provided on the bottom surface of the second mounting plate. A bearing mounting plate is sleeved on the output end of the driving device. Two mounting shafts are symmetrically arranged on the top surface of the bearing mounting plate. A cam bearing is sleeved on the upper end of the mounting shaft. The outer peripheral side of the cam bearing abuts against the second force plate.

7. A test tube fixing device according to claim 6, characterized in that, The side of the assembly frame is provided with a second guide post, the first end of the second guide post is connected to the assembly frame, and the second end of the second guide post is slidably connected to the first force plate.

8. The test tube fixing device according to claim 1, characterized in that, A positioning sensor is installed on the conveying guide rail, and the positioning sensor is used to detect the position of the test tube on the conveying guide rail.

9. A test tube fixing device according to claim 1, characterized in that, The top surface of the support is provided with a placement groove for inserting the test tube.

10. A test tube fixing device according to claim 9, characterized in that, The top surface of the support base is arrayed with several limiting clamps, and the inner side of the limiting clamps abuts against the outer side wall of the test tube.

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