Test tube rack feeding device and analyzer

Abstract

The embodiment of the utility model discloses a test tube rack feeding device and analyser, the test tube rack feeding device comprises a bearing plate, a feeding assembly and a cam lifting assembly, the bearing plate is used for bearing a test tube rack, the feeding assembly is installed on the bearing plate, the cam lifting assembly comprises a first driving motor, a cam and a pusher dog, the first driving motor is installed on the feeding assembly and connected with the cam, the cam is in transmission connection with the pusher dog, the first driving motor drives the cam to rotate, the cam drives the pusher dog to move into a groove of the test tube rack, and the feeding assembly drives the cam lifting assembly to move so that the test tube rack can be fed or retreated in the preset direction. The pusher dog can independently feed or return a certain test tube, so that the test tube rack can be conveniently rechecked, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a test tube rack feeding device and an analyzer. Background Art

[0002] With the continuous improvement of the automation level of the analyzer, the analyzer is equipped with an automatic sampling device to facilitate the automatic extraction of samples. Samples are generally stored in various test tubes, and the test tubes are placed in a test tube rack, and the test tube rack feeding device realizes automatic feeding.

[0003] The existing test tube rack feeding method is generally a test tube rack feeding device driven by a pawl. In the feeding environment of continuous test tube racks, it is difficult to feed a single test tube alone, so that for an analyzer with a retest requirement, the test tube rack cannot be retracted for retesting, thus reducing the practicability. Summary of the Utility Model

[0004] Based on this, it is necessary to provide a test tube rack feeding device and an analyzer, aiming to solve the technical problem that the existing test tube rack feeding method is generally a test tube rack feeding device driven by a pawl. In the feeding environment of continuous test tube racks, it is difficult to feed a single test tube alone, so that for an analyzer with a retest requirement, the test tube rack cannot be retracted for retesting, thus reducing the practicability.

[0005] In the first aspect, the utility model provides a test tube rack feeding device, which includes:

[0006] A carrier plate for carrying the test tube rack;

[0007] A feeding component installed on the carrier plate;

[0008] A cam lifting component, including a first driving motor, a cam and a pawl. The first driving motor is installed on the feeding component and is connected to the cam, and the cam is in transmission connection with the pawl;

[0009] The first driving motor drives the cam to rotate, the cam drives the pawl to move into the groove of the test tube rack, and the feeding component drives the cam lifting component to move, so that the test tube rack feeds or retracts along a preset direction.

[0010] In one embodiment, the cam lifting component further includes a mounting plate and a guide plate. The first driving motor is connected to the feeding component through the mounting plate. The guide plate is provided with a guide groove, and the pawl is arranged in the guide groove and moves along the direction of the guide groove.

[0011] In one embodiment, the cam lifting assembly further includes a transmission member and an elastic member. The transmission member is mounted on the pawl and is slidably connected to the cam. The elastic member elastically abuts between the transmission member and the guide plate.

[0012] In one embodiment, the cam is an eccentric cam.

[0013] In one embodiment, the cam is a cylindrical cam structure provided with a curved surface. The cam lifting assembly further includes a roller rotatably connected to the transmission member and capable of rolling on the curved surface.

[0014] In one embodiment, the cam is a cylindrical cam structure provided with a transmission groove. The cam lifting assembly further includes a roller rotatably connected to the transmission member and capable of rolling or sliding in the transmission groove.

[0015] In one embodiment, the cam lifting assembly further includes a bearing mounted on the groove wall of the guide groove and in rolling connection with the pawl.

[0016] In one embodiment, the cam lifting assembly further includes a fixing clip, and the mounting plate is fixed to the feeding assembly through the fixing clip.

[0017] In one embodiment, the bearing plate is provided with an avoidance groove extending along the feeding direction of the test tube rack and used for avoiding the pawl.

[0018] In a second aspect, the present invention further provides an analyzer, which includes an analysis module and the test tube rack feeding device according to any one of the above embodiments. The analysis module is used for analyzing samples in the test tubes in the test tube rack.

[0019] Implementing the embodiments of the present invention will have the following beneficial effects:

[0020] By using the test tube rack feeding device and the analyzer of the present invention, the bearing plate of the test tube rack feeding device is used to carry the test tube rack. The feeding assembly is mounted on the bearing plate, the first driving motor is mounted on the feeding assembly and is connected to the cam. The cam is in transmission connection with the pawl. The first driving motor drives the cam to rotate, and the cam drives the pawl to move into the groove of the test tube rack. The feeding assembly drives the cam lifting assembly to move, so that the test tube rack feeds or retracts along a preset direction. By setting the movement of the cam driving the pawl, the pawl can feed or retract a certain test tube alone, thereby facilitating the retest of the test tube rack and improving the practicability. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Among them:

[0023] Figure 1 It is an isometric schematic diagram of a test tube rack feeding device in an embodiment.

[0024] Figure 2 It is Figure 1 A schematic diagram of the feeding assembly and the cam lifting assembly in the shown test tube rack feeding device.

[0025] Figure 3 It is Figure 2 A schematic diagram of the first embodiment of the cam lifting assembly in the shown test tube rack feeding device.

[0026] Figure 4 It is Figure 2 A schematic diagram of the second embodiment of the cam lifting assembly in the shown test tube rack feeding device.

[0027] Figure 5 It is Figure 2 A schematic diagram of the third embodiment of the cam lifting assembly in the shown test tube rack feeding device.

[0028] Figure 6 It is Figure 1 A schematic diagram of the test tube rack in the shown test tube rack feeding device.

[0029] Figure 7 It is a schematic diagram of the first state of the test tube rack feeding device in an embodiment.

[0030] Figure 8 It is a schematic diagram of the second state of the test tube rack feeding device in an embodiment.

[0031] Figure 9 It is a schematic diagram of the third state of the test tube rack feeding device in an embodiment.

[0032] Reference numerals:

[0033] 1. Bearing plate; 11. Avoidance groove;

[0034] 2. Feeding assembly;

[0035] 3. Cam lifting assembly; 31. First driving motor; 32. Cam; 321. Curved surface; 322. Transmission groove; 33. Pawl; 34. Mounting plate; 35. Guide plate; 351. Guide groove; 36. Transmission member; 361. Roller; 37. Elastic member; 38. Bearing; 39. Fixed clamp;

[0036] 4. Test tube rack; 41. Groove; 42. First test tube rack; 43. Second test tube rack. Detailed implementation manners

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0039] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0040] In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0041] It should be noted that the features in the embodiments of the present invention can be combined with each other without conflict.

[0042] Please refer to Figures 1 to 9 , and now the test tube rack feeding device provided by the present invention will be described. The test tube rack feeding device is used in an analyzer.

[0043] The test tube rack feeding device includes a carrier plate 1, a feeding assembly 2 and a cam lifting assembly 3. The carrier plate 1 is used to carry the test tube rack 4. The feeding assembly 2 is installed on the carrier plate 1. The cam lifting assembly 3 includes a first driving motor 31, a cam 32 and a pawl 33. The first driving motor 31 is installed on the feeding assembly 2 and is connected to the cam 32. The cam 32 is in transmission connection with the pawl 33.

[0044] The first drive motor 31 drives the cam 32 to rotate. The cam 32 drives the pawl 33 to move into the groove 41 of the test tube rack 4. The feeding assembly 2 drives the cam lifting assembly 3 to move, so that the test tube rack 4 feeds or retracts along a preset direction.

[0045] It can be understood that the bearing plate 1 of the test tube rack feeding device is used to bear the test tube rack 4. The feeding assembly 2 is installed on the bearing plate 1. The first drive motor 31 is installed on the feeding assembly 2 and is connected to the cam 32. The cam 32 is in transmission connection with the pawl 33. The first drive motor 31 drives the cam 32 to rotate. The cam 32 drives the pawl 33 to move into the groove 41 of the test tube rack 4. The feeding assembly 2 drives the cam lifting assembly 3 to move, so that the test tube rack 4 feeds or retracts along a preset direction. By setting the movement of the cam 32 driving the pawl 33, the pawl 33 can feed or retract a certain test tube alone, thus facilitating the retest of the test tube rack 4 to improve the practicability.

[0046] It should be noted that the first drive motor 31 drives the cam 32 to rotate. The cam 32 drives the pawl 33 to move towards the test tube rack 4. When the pawl 33 extends into the groove 41, the first drive motor 31 stops driving the cam 32. At this time, the feeding assembly 2 drives the first drive motor 31, the cam 32 and the pawl 33 to feed or retract, so that the pawl 33 drives the test tube rack 4 to feed or retract.

[0047] In this embodiment, the cam lifting assembly 3 further includes a mounting plate 34 and a guide plate 35. The first drive motor 31 is connected to the feeding assembly 2 through the mounting plate 34. The guide plate 35 is provided with a guide groove 351. The pawl 33 is arranged in the guide groove 351 and moves along the direction of the guide groove 351. By setting the guide groove 351, the pawl 33 can move in a preset direction, so that the pawl 33 can extend into the groove 41.

[0048] Furthermore, the cam lifting assembly 3 further includes a transmission member 36 and an elastic member 37. The transmission member 36 is installed on the pawl 33 and is in sliding connection with the cam 32. The elastic member 37 is elastically abutted between the transmission member 36 and the guide plate 35. The first drive motor 31 drives the cam 32 to rotate. The cam 32 drives the transmission member 36 to move. The transmission member 36 drives the pawl 33 to move towards the test tube rack 4. When the pawl 33 extends into the groove 41, the first drive motor 31 stops driving the cam 32. At this time, the transmission member 36 and the guide plate 35 squeeze the elastic member 37. When the pawl 33 needs to feed the next test tube rack 4, the first drive motor 31 continues to drive the cam 32 to rotate. Under the action of the elastic deformation force of the elastic member 37, the transmission member 36 moves away from the test tube rack 4. The transmission member 36 drives the pawl 33 to disengage from the groove 41, so that the pawl 33 can feed the next test tube rack 4.

[0049] In one embodiment, as Figures 1 to 5 shown, the cam 32 has various embodiments;

[0050] In one embodiment, the cam 32 is an eccentric cam. In this way, the pawl 33 can move closer to or away from the test tube rack 4.

[0051] In another embodiment, the cam 32 is a cylindrical cam 32 structure. The cylindrical cam 32 structure is provided with a curved surface 321. The cam lifting assembly 3 further includes a roller 361. The roller 361 is rotatably connected to the transmission member 36 and can roll on the curved surface 321. By providing the curved surface 321, the roller 361 is driven by the curved surface 321 to move closer to or away from the test tube rack 4. The roller 361 drives the transmission member 36 and the pawl 33 to move closer to or away from the test tube rack 4. By providing the roller 361, the roller 361 and the curved surface 321 are in rolling friction, thereby reducing the friction coefficient.

[0052] In yet another embodiment, the cam 32 is a cylindrical cam 32 structure. The cylindrical cam 32 structure is provided with a transmission groove 322. The cam lifting assembly 3 further includes a roller 361. The roller 361 is rotatably connected to the transmission member 36 and can roll or slide in the transmission groove 322. By providing the transmission groove 322, the roller 361 is driven by the transmission groove 322 to move closer to or away from the test tube rack 4. The roller 361 drives the transmission member 36 and the pawl 33 to move closer to or away from the test tube rack 4. By providing the roller 361, the roller 361 and the transmission groove 322 roll or slide, thereby reducing the friction coefficient.

[0053] In one embodiment, as Figure 2 and Figure 3 shown, the cam lifting assembly 3 further includes a bearing 38. The bearing 38 is installed on the groove wall of the guide groove 351 and is in rolling connection with the pawl 33. In this way, the pawl 33 can move smoothly in the direction of approaching or departing from the test tube rack 4.

[0054] In one embodiment, continuing as Figure 2 and Figure 3 shown, the cam lifting assembly 3 further includes a fixing clip 39. The mounting plate 34 is fixed to the feeding assembly 2 through the fixing clip 39. By providing the fixing clip 39, the mounting plate 34 can be stably mounted on the feeding assembly 2.

[0055] In this embodiment, the feeding assembly 2 includes a second driving motor, a synchronous belt and two synchronous wheels. The second driving motor is installed on the bearing plate 1. The second driving motor is connected to one synchronous wheel. The synchronous belt surrounds the two synchronous wheels. The second driving motor drives one synchronous wheel to drive the synchronous belt to rotate. The fixing clip 39 fixes the mounting plate 34 on the synchronous belt, so as to be able to drive the mounting plate 34 to drive the cam lifting assembly 3 to feed or retreat.

[0056] In one embodiment, as Figures 1 to 3 shown, the carrier plate 1 is provided with an avoidance groove 11, and the avoidance groove 11 extends along the feeding direction of the test tube rack 4 and is used for avoiding the pawl 33. By providing the avoidance groove 11, when the pawl 33 extends into the groove 41, interference between the pawl 33 and the carrier plate 1 is avoided. When the pawl 33 moves away from the test tube rack 4, the pawl 33 extends under the carrier plate 1 to avoid interference between the pawl 33 and the test tube rack 4.

[0057] In one embodiment, as Figures 6 to 9 shown, when feeding a single test tube rack 4, the pawl 33 extends into the first groove 41 in the feeding direction of the test tube rack 4, or may also extend into the grooves 41 at other positions. Preferably, when the test tube rack 4 is in the initial position, the pawl 33 can only extend into the first groove 41. After one feeding, it can extend into the first groove 41 or the second groove 41. After two feedings, it can extend into the first groove 41 or the second groove 41 or the third groove 41 or other grooves 41.

[0058] When it is necessary to feed the first test tube rack 42 and the second test tube rack 43 simultaneously, the pawl 33 can extend into the groove 41 of the second test tube rack 4, and the first test tube rack 42 is pushed by the second test tube rack 43 to complete the simultaneous feeding of the two test tube racks 4. Similarly, when it is necessary to retract the two test tube racks 4 simultaneously, the pawl 33 can extend into the groove 41 of the first test tube rack 4, and the second test tube rack 43 is pushed by the first test tube rack 42 to complete the simultaneous retraction of the two test tube racks 4.

[0059] When it is necessary to feed the test tube rack 4 alone, the pawl 33 can be extended into the groove 41 of the first test tube rack 42 or the second test tube rack 43. Of course, when it is necessary to feed the second test tube rack 43 alone, there should be space between the first test tube rack 42 and the second test tube rack 43 to prevent the first test tube rack 42 from hindering the individual feeding of the second test tube rack 43. Similarly, the individual retraction operations of the first test tube rack 42 and the second test tube rack 43 can also be completed.

[0060] The present utility model further provides an analyzer, which includes an analysis module and the test tube rack 4 feeding device of any one of the above embodiments, and the analysis module is used for analyzing the samples in the test tubes in the test tube rack 4.

[0061] It can be understood that in this embodiment, the analyzer of the present utility model uses the above-mentioned test tube rack 4 feeding device, such that the bearing plate 1 of the test tube rack 4 feeding device is used to carry the test tube rack 4, the feeding assembly 2 is installed on the bearing plate 1, the first driving motor 31 is installed on the feeding assembly 2 and is connected to the cam 32, the cam 32 is in transmission connection with the pawl 33, the first driving motor 31 drives the cam 32 to rotate, the cam 32 drives the pawl 33 to move into the groove 41 of the test tube rack 4, and the feeding assembly 2 drives the cam lifting assembly 3 to move, so that the test tube rack 4 feeds or retracts along a preset direction. By setting the movement of the cam 32 driving the pawl 33, the pawl 33 can feed or retract a certain test tube individually, thereby facilitating the retest of the test tube rack 4 to improve the practicability.

[0062] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0063] The above-disclosed are only the preferred embodiments of the present utility model. Of course, the scope of the rights of the present utility model cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A test tube rack feeding device, characterized in that: The test tube rack feeding device comprises: A carrying plate, used for carrying a test tube rack; A feeding assembly, mounted on the carrying plate; A cam lifting assembly comprises a first driving motor, a cam and a pusher claw, wherein the first driving motor is installed on the feeding assembly and connected to the cam, and the cam is drivingly connected to the pusher claw; The first driving motor drives the cam to rotate, and the cam drives the pusher claw to move into the groove of the test tube rack. The feeding assembly drives the cam lifting assembly to move, so that the test tube rack feeds or retracts along a preset direction.

2. The test tube rack feeding device according to claim 1, characterized in that: The cam lifting assembly also includes a mounting plate and a guide plate, the first drive motor is connected to the feed assembly via the mounting plate, the guide plate is provided with a guide groove, the pusher claw is arranged in the guide groove and moves along the direction of the guide groove.

3. The test tube rack feeding device according to claim 2, characterized in that: The cam lifting assembly further comprises a transmission member and an elastic member. The transmission member is mounted on the pusher claw and is slidably connected with the cam. The elastic member elastically abuts between the transmission member and the guide plate.

4. The test tube rack feeding device according to claim 3, characterized in that: The cam is an eccentric wheel.

5. The test tube rack feeding device according to claim 3, characterized in that: The cam is a cylindrical cam structure, and the cylindrical cam structure is provided with a curved surface. The cam lifting assembly also includes a roller, and the roller is rotatably connected to the transmission member and can roll on the curved surface.

6. The test tube rack feeding device according to claim 3, characterized in that: The cam is a cylindrical cam structure, and the cylindrical cam structure is provided with a transmission groove. The cam lifting assembly also includes a roller, and the roller is rotatably connected to the transmission member and can roll or slide in the transmission groove.

7. The test tube rack feeding device according to claim 2, characterized in that: The cam lifting assembly also includes a bearing, which is installed on the groove wall of the guide groove and is rollingly connected with the pusher claw.

8. The test tube rack feeding device according to claim 2, characterized in that: The cam lifting assembly also includes a fixing clamp, and the mounting plate is fixed to the feeding assembly by the fixing clamp.

9. The test tube rack feeding device according to claim 1, characterized in that: The carrying plate is provided with an avoidance groove, which extends along the feeding direction of the test tube rack and is used to avoid the pusher claw.

10. An analyzer, characterized in that: The analyzer comprises an analysis module and a test tube rack feeding device as claimed in any one of claims 1 to 9, wherein the analysis module is used for analyzing samples in test tubes in the test tube rack.

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