CN219891265U

CN219891265U - Sample conveying device and sample analyzer

Info

Publication number: CN219891265U
Application number: CN202321179670.5U
Authority: CN
Inventors: 张文斌; 林壁标; 邓卫平
Original assignee: Zhongyuan Huiji Biotechnology Co Ltd
Current assignee: Zhongyuan Huiji Biotechnology Co Ltd
Priority date: 2023-05-16
Filing date: 2023-05-16
Publication date: 2023-10-24
Anticipated expiration: 2033-05-16

Abstract

The utility model discloses a sample conveying device and a sample analyzer, wherein the sample conveying device comprises a supporting mechanism, a test tube seat and a conveying mechanism, the supporting mechanism comprises a supporting component, a table panel and a tray, the table panel and the tray are arranged up and down at intervals, a sampling position and a lofting position are formed on the table panel, an avoidance opening is formed in the table panel, the bottom end of the supporting component is connected with the tray, the top end of the supporting component is exposed out of the avoidance opening, the test tube seat is positioned at the top end of the supporting component and is in sliding connection with the supporting component, the test tube seat is used for placing a test tube filled with a sample to be tested, the conveying mechanism is arranged between the table panel and the tray and comprises a transmission component and a driving component, the transmission component is connected with the test tube seat, and the driving component is connected with the transmission component and is used for driving the test tube seat to reciprocate between the sampling position and the lofting position through the transmission component. The sample conveying device is compact in structure, small in size and beneficial to disassembly, assembly and maintenance.

Description

Sample conveying device and sample analyzer

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a sample conveying device and a sample analyzer.

Background

At present, sample injector on the market is to emergency sample transport, and one kind is rotatory business turn over for the sample test tube, compact structure, and the stroke is little, but to the test tube of uncapping, the sample in the test tube shakes and mixes up-and-down when rotatory, splashes even.

Therefore, in order to prevent the sample from vibrating in the motion process and mixing up and down, another sample tube entering and exiting mode is provided, namely, the sample tube enters and exits horizontally, the tube seat for placing the test tube is guided along the horizontal direction, and the tube seat is pushed out by the driving assembly, so that the sample tube can be stably conveyed under the guiding action of the guiding structure due to the tube seat. However, the driving assembly is arranged on the table top of the sample injector, so that the whole structure is large in size and is not beneficial to disassembly, assembly and maintenance.

In view of the above-described drawbacks, it is necessary to provide a new sample delivery apparatus and sample analyzer.

Disclosure of Invention

The utility model mainly aims to provide a sample conveying device and a sample analyzer, and aims to solve the problem that an existing sample injector is large in size and is not beneficial to disassembly, assembly and maintenance.

To achieve the above object, the present utility model provides a sample transfer apparatus comprising:

the supporting mechanism comprises a supporting component, a deck plate and a tray, wherein the deck plate and the tray are arranged at intervals up and down, the deck plate is provided with a sampling position and a lofting position, an avoidance opening is formed in the deck plate, the bottom end of the supporting component is connected with the tray, and the top end of the supporting component is exposed out of the avoidance opening;

the test tube seat is positioned at the top end of the supporting component and is in sliding connection with the supporting component, and the test tube seat is used for placing a test tube filled with a sample to be tested;

the conveying mechanism is arranged between the table panel and the tray and comprises a transmission assembly and a driving assembly, wherein the transmission assembly and the driving assembly are connected with the supporting assembly, the test tube seat penetrates through the avoidance port and is connected with the transmission assembly, the driving assembly is connected with the transmission assembly, and the driving assembly is used for driving the test tube seat to reciprocate between the sampling position and the lofting position through the transmission assembly.

Preferably, the support assembly comprises a first bracket and a second bracket which are arranged at intervals up and down, the first bracket is positioned on the deck plate and connected with the deck plate, the second bracket is positioned between the deck plate and the tray and connected with the tray, the test tube seat is in sliding connection with the first bracket, and the transmission assembly and the driving assembly are both connected with the second bracket.

Preferably, the second support includes second curb plate and upper and lower interval top plate and second bottom plate that sets up, the upper end and the lower extreme of second curb plate respectively with the roof with the second bottom plate corresponds to be connected, so as to enclose into accommodation space, drive assembly install in the accommodation space, drive assembly with the second curb plate deviates from one side of accommodation space is connected.

Preferably, the transmission assembly comprises a first transmission wheel, a second transmission wheel and a synchronous belt, the first transmission wheel is rotationally connected with the second support, the second transmission wheel passes through the second support and is connected with a driving shaft of the driving assembly, the synchronous belt is wound on the peripheries of the first transmission wheel and the second transmission wheel, the test tube seat passes through the avoidance opening and is connected with the synchronous belt, and the driving assembly is used for driving the second transmission wheel to rotate so as to drive the test tube seat to reciprocate between the sampling position and the lofting position through the synchronous belt.

Preferably, the transmission assembly further comprises tensioning wheels, the number of the first transmission wheels is two, the two first transmission wheels are both in rotary connection with the second support, the second transmission wheels are located below the two first transmission wheels, the synchronous belt is wound around the peripheries of the second transmission wheels and the two first transmission wheels, and the tensioning wheels are located between the second transmission wheels and the two first transmission wheels and are in butt joint with the outer sides of the synchronous belt.

Preferably, the test tube seat comprises a seat body and a pulling plate positioned at one side of the seat body, the seat body is in sliding connection with the first bracket, the top end of the pulling plate is connected with the seat body, the bottom end of the pulling plate extends to a direction away from the seat body to form a connecting plate, and the connecting plate is connected with the synchronous belt.

Preferably, the test tube holder further comprises a pressing plate, wherein the pressing plate is connected with the connecting plate, and the synchronous belt is pressed between the pressing plate and the connecting plate.

Preferably, the first bracket comprises a guide rail, a first bottom plate and two first side plates correspondingly connected with two opposite ends of the first bottom plate, the first bottom plate is connected with the table panel, two ends of the guide rail are correspondingly connected with the two first side plates respectively, and the test tube seat is in sliding connection with the guide rail.

Preferably, the sample conveying device further comprises a pushing mechanism, the pushing mechanism comprises a pushing plate, the pushing plate is connected with the test tube seat, the pushing plate is obliquely upwards arranged from one end, close to the test tube seat, to the direction away from the test tube seat, the sample conveying device further comprises a bin gate connected with the table panel through an elastic piece, and the pushing plate is used for pushing the bin gate to be opened when the test tube seat moves to the lofting position.

Preferably, the pushing plate is provided with a pushing wheel, and the pushing wheel is located at one end of the pushing plate far away from the test tube seat and is used for pushing the bin gate to open.

Preferably, a test tube barrel is arranged on the test tube seat, and a containing groove for containing the test tube is formed in the top of the test tube barrel in a concave mode.

In addition, in order to achieve the above object, the present utility model also proposes a sample analyzer comprising a sampling device for taking out a sample to be measured placed in the test tube of the sampling site, and a sample transporting device as described above.

According to the technical scheme, the sample conveying device is characterized in that the conveying mechanism is arranged between the table panel and the tray which are arranged at an upper interval and a lower interval, the table panel is provided with the avoidance opening, the supporting component is connected with the tray, the supporting component is exposed out of the table panel, the test tube seat is in sliding connection with the top end of the supporting component, so that when the test tube seat moves relative to the supporting component, a sample in a test tube on the test tube seat is stable, the driving component and the transmission component of the conveying mechanism are both connected with the bottom end of the supporting component, the test tube seat passes through the avoidance opening and is connected with the transmission component, and when the test tube seat needs to be driven to move between the sampling position and the lofting position, the driving component drives the test tube seat to reciprocate between the sampling position and the lofting position through the transmission component. According to the sample conveying device, the driving component and the transmission component of the conveying mechanism are arranged between the deck plate and the tray, so that the sample conveying device is compact in structure and small in size, and is beneficial to disassembly, assembly and maintenance.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing a sample transporting apparatus according to an embodiment of the present utility model, wherein the sample transporting apparatus is located at a sample position in a test tube seat;

FIG. 2 is an exploded view of a sample delivery apparatus according to an embodiment of the present utility model;

FIG. 3 is a schematic view showing a sample transfer apparatus according to an embodiment of the present utility model in a test tube position;

FIG. 4 is a schematic view of a deck plate according to an embodiment of the utility model;

FIG. 5 is a schematic view of a support assembly, a test tube holder and a driving mechanism according to an embodiment of the present utility model;

FIG. 6 is a schematic view showing the structure of the first rack and the test tube holder according to an embodiment of the present utility model;

FIG. 7 is a schematic view showing an exploded structure of the first bracket and the deck plate according to an embodiment of the utility model;

FIG. 8 is a schematic view showing a sample delivery apparatus according to another embodiment of the present utility model in a test tube position;

FIG. 9 is a schematic view showing a sample transfer apparatus according to another embodiment of the present utility model in a test tube position.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

The utility model provides a sample conveying device and a sample analyzer, and aims to solve the problem that an existing sample injector is large in size and is not beneficial to disassembly, assembly and maintenance.

Referring to fig. 1 to 4, the sample conveying device includes a supporting mechanism 1, a test tube holder 2 and a conveying mechanism 3, the supporting mechanism 1 includes a supporting component 11, and a deck plate 12 and a tray 13 which are arranged at intervals up and down, the deck plate 12 is provided with a sampling position and a lofting position, and is provided with a lofting hole 121, the bottom end of the supporting component 11 is connected with the tray 13, the top end exposes out of the lofting hole 121, the test tube holder 2 is located at the top end of the supporting component 11 and is slidably connected with the supporting component 11, the test tube holder 2 is used for placing a test tube 10 filled with a sample to be tested, the conveying mechanism 3 is arranged between the deck plate 12 and the tray 13, and includes a transmission component 31 and a driving component 32 which are connected with the supporting component 11, the test tube holder 2 passes through the lofting hole 121 and is connected with the transmission component 31, and the driving component 32 is used for driving the test tube holder 2 to reciprocate between the sampling position and the lofting position through the transmission component 31.

According to the sample conveying device, the conveying mechanism 3 is arranged between the deck plate 12 and the tray 13 which are arranged at an upper and lower interval, the avoidance opening 121 is formed in the deck plate 12, the supporting component 11 is connected with the tray 13, the supporting component 11 is exposed out of the deck plate 12, the test tube seat 2 is in sliding connection with the top end of the supporting component 11, so that when the test tube seat 2 moves relative to the supporting component 11, a sample in the test tube 10 on the test tube seat 2 is stable, the driving component 32 and the transmission component 31 of the conveying mechanism 3 are both connected with the bottom end of the supporting component 11, the test tube seat 2 passes through the avoidance opening 121 and is connected with the transmission component 31, and when the test tube seat 2 needs to be driven to move between a sampling position and a lofting position, the driving component 32 drives the test tube seat 2 to reciprocate between the sampling position and the lofting position through the transmission component 31. According to the sample conveying device, the driving component 32 and the transmission component 31 of the conveying mechanism 3 are arranged between the table top plate 12 and the tray 13, so that the sample conveying device is compact in structure and small in size, and is beneficial to disassembly, assembly and maintenance.

It should be noted that, the sample conveying device of the present utility model can be used for conveying emergency samples, when emergency samples need to be sampled, the driving component 32 drives the transmission component 31 and drives the test tube holder 2 to move to the sample placing position, the test tube 10 with the samples is placed on the test tube holder 2 at the sample placing position, and after the test tube 10 with the samples is placed in place, the driving component 32 drives the transmission component 31 again and drives the test tube holder 2 to move to the sample placing position for sampling detection. Wherein, promote the test tube seat 2 and handle the lofting position, the placing of test tube 10 of being convenient for.

In an embodiment, as shown in fig. 5 to 7, the support assembly 11 includes a first bracket 111 and a second bracket 112 disposed at an upper-lower interval, the first bracket 111 is located on the deck 12 and connected to the deck 12, the second bracket 112 is located between the deck 12 and the tray 13 and connected to the tray 13, the test tube holder 2 is slidably connected to the first bracket 111, and the transmission assembly 31 and the driving assembly 32 are both connected to the second bracket 112. For easy assembly, the support assembly 11 may be provided with a first bracket 111 and a second bracket 112 arranged at an upper-lower interval, the driving assembly 32 and the transmission assembly 31 are firstly installed on the second bracket 112, the test tube seat 2 is slidably connected with the first bracket 111, the second bracket 112 is installed on the tray 13 through the avoidance opening 121, then the first bracket 111 is installed on the table board 12, and the test tube seat 2 and the transmission assembly 31 are mutually connected; when the first bracket 111 is detached, the second bracket 112 is detached, so that the disassembly is convenient and quick.

Further, the second bracket 112 includes a second side plate 1121, a top plate 1122 and a second bottom plate 1123 disposed at an upper-lower interval, the upper end and the lower end of the second side plate 1121 are respectively connected with the top plate 1122 and the second bottom plate 1123, so as to enclose an accommodating space 1124, the driving assembly 32 is mounted in the accommodating space 1124, and the transmission assembly 31 is connected with one side of the second side plate 1121 facing away from the accommodating space 1124. To prevent the liquid or dust thereon from falling onto the drive assembly 32, which affects the operation and service life of the drive assembly 32, the drive assembly 32 may be mounted in the receiving space 1124 of the second bracket 112. The upper and lower ends of the second side plate 1121 of the second bracket 112 are respectively bent to form a top plate 1122 and a second bottom plate 1123, the top plate 1122 and the second bottom plate 1123 are positioned on the same side of the second side plate 1121, and the top plate 1122 can prevent the liquid or dust above from falling onto the driving assembly 32 below.

Further, the transmission assembly 31 includes a first transmission wheel 311, a second transmission wheel 312 and a synchronous belt 313, the first transmission wheel 311 is rotationally connected with the second bracket 112, the second transmission wheel 312 passes through the second bracket 112 and is connected with a driving shaft of the driving assembly 32, the synchronous belt 313 is wound around the peripheries of the first transmission wheel 311 and the second transmission wheel 312, the test tube holder 2 passes through the avoidance port 121 and is connected with the synchronous belt 313, and the driving assembly 32 is used for driving the second transmission wheel 312 to rotate so as to drive the test tube holder 2 to reciprocate between the sampling position and the lofting position through the synchronous belt 313. In order to reduce the noise of the sample conveying device, the transmission assembly 31 can be arranged in a belt conveying mode, the transmission assembly 31 comprises a first transmission wheel 311, a second transmission wheel 312 and a synchronous belt 313 which is arranged at intervals and wound on the periphery of the first transmission wheel 311 and the second transmission wheel 312, wherein the first transmission wheel 311 is rotationally connected with the second bracket 112, the second transmission wheel 312 is connected with a driving shaft of the driving assembly 32, the driving assembly 32 works, the driving shaft rotates and drives the second transmission wheel 312 to rotate, the second transmission wheel 312 drives the synchronous belt 313 to move, and the synchronous belt 313 drives the test tube holder 2 connected with the synchronous belt to move.

In addition, in an embodiment, the transmission assembly 31 further includes a tensioning wheel 314, the number of the first transmission wheels 311 is two, the two first transmission wheels 311 are rotatably connected with the second bracket 112, the second transmission wheel 312 is located below the two first transmission wheels 311, the synchronous belt 313 is wound around the second transmission wheel 312 and the peripheries of the two first transmission wheels 311, and the tensioning wheel 314 is located between the second transmission wheel 312 and the two first transmission wheels 311 and is abutted to the outer side of the synchronous belt 313. Since the timing belt 313 is easily loosened during long-term use, the tension pulley 314 is provided, the outer circumference of the tension pulley 314 is abutted against the outer side of the timing belt 313, and the tension of the timing belt 313 is adjusted by the tension pulley 314.

The test tube holder 2 includes a holder 21 and a pulling plate 22 disposed at one side of the holder 21, the holder 21 is slidably connected with the first bracket 111, the top end of the pulling plate 22 is connected with the holder 21, the bottom end of the pulling plate 22 extends in a direction far away from the holder 21 to form a connecting plate, and the connecting plate is connected with the synchronous belt 313. The test tube seat 2 comprises a seat body 21, the seat body 21 is in sliding connection with the first bracket 111, the top end of a pulling plate 22 is connected with one side of the seat body 21, the bottom end of the pulling plate 22 is bent and extended in a direction away from the seat body 21 to form a connecting plate, the connecting plate is connected with a synchronous belt 313, and when the synchronous belt 313 moves, the synchronous belt 313 drives the pulling plate 22 through the connecting plate and pulls the test tube seat 2 to move relative to the first bracket 111 through the pulling plate 22.

Further, in order to achieve various functions, the test tube holder 2 further includes a pressing plate 23, and the pressing plate 23 is connected to the connection plate and compresses the timing belt 313 between the pressing plate 23 and the connection plate. In order to make it possible for the timing belt 313 to drive the test tube holder 2 more reliably, the connection between the timing belt 313 and the connecting plate can be reinforced, the connection between the pressure plate 23 and the connecting plate can be made to be mutually connected, and the timing belt 313 can be pressed between the pressure plate 23 and the connecting plate, wherein the connection between the pressure plate 23 and the connecting plate can be made by means of bolts.

In addition, as shown in fig. 6, in the above embodiment, the first bracket 111 includes a guide rail 1111, a first bottom plate 1112, and two first side plates 1113 correspondingly connected to opposite ends of the first bottom plate 1112, the first bottom plate 1112 is connected to the table top 12, two ends of the guide rail 1111 are correspondingly connected to the two first side plates 1113, and the test tube holder 2 is slidably connected to the guide rail 1111. Opposite ends of the first bottom plate 1112 are bent upwards to form a first side plate 1113, the guide rail 1111 is located above the first bottom plate 1112, two ends of the guide rail 1111 are respectively connected with the two first side plates 1113, and the test tube holder 2 is provided with a bearing or a bushing slidably connected with the guide rail 1111, so that the test tube holder 2 is slidably connected with the first bracket 111.

In an embodiment, as shown in fig. 8 and 9, the sample conveying device further includes a pushing mechanism 4, the pushing mechanism 4 includes a pushing plate 41, the pushing plate 41 is connected to the test tube holder 2, the pushing plate 41 is obliquely disposed upwards from one end close to the test tube holder 2 to a direction away from the test tube holder 2, the sample conveying device further includes a door 5 connected to the table panel 12 through an elastic member, and the pushing plate 41 is used for pushing the door 5 to open when the test tube holder 2 moves to the sample loading position. The sample conveying device further comprises a bin gate 5 connected with the table panel 12 through a spring, and the bin gate 5 is in a tight state under the elastic force of the spring, so that external dust, foreign matters and the like can be prevented from entering the sample conveying device. When the driving component 32 drives the test tube seat 2 to reach the lofting position, the test tube seat 2 drives the push plate 41 to push the bin gate 5, so that the bin gate 5 is opened, and when the test tube 10 is placed on the test tube seat 2, the driving component 32 drives the test tube seat 2 to reach the sampling position from the lofting position, the push plate 41 is separated from the bin gate 5, and the bin gate 5 is closed under the action of the elastic force of the spring.

Further, a pushing wheel 42 is provided on the pushing plate 41, and the pushing wheel 42 is located at one end of the pushing plate 41 away from the test tube seat 2 and is used for pushing the bin gate 5 to open. To more smoothly push the cartridge door 5, a push plate 41 is provided with a push wheel 42 at an end remote from the test tube holder 2. When the driving assembly 32 drives the test tube seat 2 to reach the lofting position, the pushing wheel 42 pushes the bin gate 5 to be opened, and the pushing wheel 42 is rotationally connected with the pushing plate 41, so that friction between the pushing wheel 42 and the bin gate 5 is rolling friction, the friction is small, and the bin gate 5 is pushed more effort-saving and smoother.

Further, the test tube holder 2 is provided with a test tube barrel 24, and a containing groove for containing the test tube 10 is formed in the top of the test tube barrel 24 in a concave manner. The test tube holder 2 is provided with test tube barrels 24 for preventing test tubes 10, the number of the test tube barrels 24 can be 1, 2 or more, and when the test tube holder 2 is positioned at the lofting position, the test tubes 10 can be placed in the accommodating grooves of the test tube barrels 24.

In addition, the utility model also provides a sample analyzer, which comprises a sampling device and the sample conveying device, wherein the sampling device is used for taking out a sample to be tested in the test tube 10 placed at a sampling position. The specific structure of the sample conveying device in the sample analyzer refers to the above embodiments, and since the sample analyzer adopts all the technical solutions of all the embodiments, the sample analyzer has at least all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A sample delivery apparatus, the sample delivery apparatus comprising:

2. The sample delivery apparatus of claim 1, wherein the support assembly comprises a first support and a second support spaced apart from each other, the first support being positioned on and coupled to the deck, the second support being positioned between and coupled to the deck and the tray, the test tube holder being slidably coupled to the first support, and the drive assembly being coupled to the second support.

3. The sample delivery apparatus of claim 2, wherein the second bracket comprises a second side plate, a top plate and a second bottom plate, wherein the top plate and the second bottom plate are arranged at an upper and a lower intervals, the upper end and the lower end of the second side plate are respectively connected with the top plate and the second bottom plate correspondingly so as to enclose an accommodating space, the driving assembly is installed in the accommodating space, and the transmission assembly is connected with one side of the second side plate away from the accommodating space.

4. A sample delivery apparatus according to claim 3, wherein the drive assembly comprises a first drive wheel rotatably coupled to the second support, a second drive wheel passing through the second support and coupled to a drive shaft of the drive assembly, and a timing belt wound around the peripheries of the first drive wheel and the second drive wheel, the test tube holder passing through the evacuation port and coupled to the timing belt, the drive assembly being adapted to drive the second drive wheel in rotation to reciprocate between the sampling position and the lofting position via the timing belt.

5. The sample conveying device according to claim 4, wherein the transmission assembly further comprises tensioning wheels, the number of the first transmission wheels is two, the two first transmission wheels are rotatably connected with the second bracket, the second transmission wheel is located below the two first transmission wheels, the synchronous belt is wound around the peripheries of the second transmission wheel and the two first transmission wheels, and the tensioning wheels are located between the second transmission wheel and the two first transmission wheels and are abutted to the outer sides of the synchronous belt.

6. The sample delivery apparatus of claim 4, wherein the test tube holder comprises a base and a pull plate positioned on one side of the base, the base is slidably connected to the first support, the top end of the pull plate is connected to the base, the bottom end of the pull plate extends away from the base to form a connecting plate, and the connecting plate is connected to the timing belt.

7. The sample delivery apparatus of claim 6, wherein the cuvette holder further comprises a platen coupled to the web and compressing the timing belt between the platen and the web.

8. The sample delivery apparatus according to any one of claims 2 to 7, wherein the first bracket includes a guide rail, a first bottom plate and two first side plates correspondingly connected to opposite ends of the first bottom plate, the first bottom plate is connected to the deck plate, both ends of the guide rail are respectively correspondingly connected to the two first side plates, and the test tube holder is slidably connected to the guide rail.

9. The sample delivery apparatus of any one of claims 1 to 7, further comprising a pushing mechanism comprising a push plate connected to the test tube holder and disposed obliquely upward from an end near the test tube holder in a direction away from the test tube holder, the sample delivery apparatus further comprising a door connected to the deck plate via an elastic member, the push plate being configured to push the door open when the test tube holder moves to the loading position.

10. The sample delivery apparatus of claim 9, wherein the pusher is provided with a pusher wheel, the pusher wheel being located at an end of the pusher remote from the cartridge seat and configured to push the door open.

11. The sample delivery apparatus of any one of claims 1 to 7, wherein a cartridge is provided on the cartridge, the cartridge having a top portion recessed to form a receiving recess for receiving the test tube.

12. A sample analyser, characterised in that it comprises sampling means for taking out a sample to be measured placed in the test tube at the sampling site, and a sample delivery means according to any one of claims 1 to 11.