Analyzer

Abstract

The present invention provides an analyzer, which includes: a refrigerating device, a material taking component and a locking mechanism, wherein the refrigerating device is used to store a reagent box; the material taking component includes a material taking mechanism, which can move relative to the refrigerating device to absorb reagents from the reagent box or separate from the reagent box; the locking mechanism is used to stop the material taking mechanism when the material taking mechanism is separated from the reagent box to prevent the material taking mechanism from being inserted into the reagent box. By setting the locking mechanism, when the reagent box is replaced, the material taking mechanism is stopped and positioned, and the material taking mechanism is allowed to move relative to the refrigerating device only when the reagent information on the reagent box fully meets the requirements, thereby preventing the reagent box from being replaced incorrectly and causing waste.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an analyzer. Background Art

[0002] With the continuous advancement of medical methods, the types of reagents used for blood analysis are increasing. When replacing the reagents, if the reagents are placed under the wrong material dispensing mechanism, the reagents will be contaminated after the material dispensing mechanism is extended into the reagent box, resulting in waste. Or when the reagents in the reagent box expire, not only can the test results not be obtained, but the material dispensing mechanism will also be contaminated, and the material dispensing mechanism needs to be cleaned. Therefore, when replacing the reagent box, the existing analyzer needs to be extremely careful to prevent waste. Summary of the invention

[0003] The invention provides an analyzer to solve the technical problem of waste caused by wrong placement of analyzer reagent kit in the prior art.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide an analyzer, comprising: a refrigeration device, a material taking component and a locking mechanism, wherein the refrigeration device is used to store the test kit; the material taking component includes a material taking mechanism, and the material taking mechanism can move relative to the refrigeration device to absorb reagents from the test kit or separate from the test kit; the locking mechanism is used to stop the material taking mechanism when the material taking mechanism is separated from the test kit to prevent the material taking mechanism from being inserted into the test kit.

[0005] The beneficial effects of the present invention are as follows: different from the prior art, the present invention sets a locking mechanism to stop the material taking mechanism in place when the reagent kit is replaced, and the material taking mechanism is allowed to move relative to the refrigeration device only when the reagent information of the reagent in the reagent kit fully meets the requirements, thereby preventing the reagent kit from being replaced incorrectly and causing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0007] Figure 1 is a schematic diagram of the exploded structure of a refrigeration device according to an embodiment of the present invention;

[0008] Figure 2 is a schematic diagram of the three-dimensional structure of a kit in one embodiment of the present invention;

[0009] Figure 3 is a schematic diagram of the three-dimensional structure of a cover body in one embodiment of the present invention;

[0010] Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure of a medium refrigeration device;

[0011] Figure 5 is a partial enlarged schematic diagram of the cooperation between the cooling fin and the embedding groove in another embodiment of the present invention;

[0012] Figure 6 It is a schematic diagram of the exploded structure of a material taking component in one embodiment of the invention;

[0013] Figure 7 yes Figure 6 A schematic cross-sectional view of the center take-away assembly;

[0014] Figure 8 yes Figure 6 Schematic diagram of the exploded structure of the middle material taking mechanism;

[0015] Fig. 9 yes Figure 6 Schematic diagram of the exploded structure of the elastic positioning mechanism;

[0016] Fig.10 is a schematic diagram of the exploded structure of a locking mechanism in one embodiment of the present invention;

[0017] Fig.11 It is a schematic diagram of the top view of the structure when the driver and the stopper assembly are separated;

[0018] Fig.12 It is a schematic diagram of the cross-sectional structure when the driver and the stopper assembly are separated;

[0019] Fig.13 It is a schematic diagram of the top view of the structure when the driver is in contact with the stopper assembly;

[0020] Fig.14 It is a schematic diagram of the cross-sectional structure when the driver is in contact with the stopper assembly;

[0021] Fig.15 is a schematic diagram of the three-dimensional structure of an analyzer in one embodiment of the present invention;

[0022] Fig.16 yes Fig.15 A schematic diagram of the exploded structure of the analyzer shown;

[0023] Fig.17 is a schematic cross-sectional structural diagram of an analyzer in a first state according to an embodiment of the present invention;

[0024] Fig.18 It is a schematic diagram of the process of replacing the reagent kit;

[0025] Fig.19 It is a schematic cross-sectional structural diagram of an analyzer in a second state according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In one aspect, the present invention provides a refrigeration device 10. Figure 1 The refrigeration device 10 may include a main body 110, a refrigeration fin 120, a cooling block 130 and a cover 140. The cooling block 130 is disposed in the main body 110, the refrigeration fin 120 is used for cooling, and the cover 140 is covered on the main body 110 to form a box with one side opened.

[0028] Specifically, the main body 110 includes a bottom plate 112 and a side plate 114 arranged around the side of the bottom plate 112 . The bottom plate 112 is provided with a through embedding groove 116 , and a first step structure is formed on the top of the side plate 114 .

[0029] The bottom plate 112 may be in a rectangular, trapezoidal or semicircular shape, and the side plates 114 are arranged around the sides of the bottom plate 112 and are perpendicular to the bottom plate 112. The bottom plate 112 may be an integrally formed structure with the side plates 114, or may be connected to the side plates 114 by welding or the like, which is not specifically limited in the present invention.

[0030] exist Figure 1 In the illustrated embodiment, the bottom plate 112 is rectangular, and the side plate 114 includes a first side plate 1142, a second side plate 1144, and a third side plate 1146 connected in sequence. The first side plate 1142 and the third side plate 1146 are disposed opposite to each other, and the second side plate 1144 is disposed opposite to the opening.

[0031] Further, the first side plate 1142 and the third side plate 1146 each include a first step surface 1143 and a second step surface 1145 arranged in a stepped shape, wherein the height of the first step surface 1143 is higher than the height of the second step surface 1145, so as to form a first step structure on the first side plate 1142 and the third side plate 1146. The surface of the second side plate 1144 away from the bottom plate 112 is flush with the second step surface 1145. The first positioning column 111 or the first positioning hole 113 is provided on the first step surface 1143, the second step surface 1145, and the surface of the second side plate 1144 away from the bottom plate 112.

[0032] like Figure 1As shown, a bending portion 115 is also provided on the side of the first side plate 1142 and the third side plate 1146 close to the opening. The bending portion 115 extends from the first side plate 1142 and the third side plate 1146 in directions away from each other. That is, on the first side plate 1142, the bending portion 115 is arranged on the side of the first side plate 1142 away from the third side plate 1146, connected to the first side plate 1142, and perpendicular to the first side plate 1142. On the third side plate 1146, the bending portion 115 is arranged on the side of the third side plate 1146 away from the first side plate 1142, connected to the third side plate 1146, and perpendicular to the third side plate 1146. By arranging the bending portion 115 on the side of the first side plate 1142 and the third side plate 1146 close to the opening, it is convenient to grab the main body 110 when taking the main body 110 out of the refrigeration device 10.

[0033] The cooling block 130 includes a cooling bottom plate 132 and cooling baffles 134. The cooling baffles 134 are arranged in parallel and spaced apart on the cooling bottom plate 132, and the reagent kit 150 is placed between adjacent cooling baffles 134. The number of cooling baffles 134 can be flexibly selected according to the number of reagent kits 150 to be placed, and the present invention does not make a specific limitation.

[0034] like Figure 1 As shown, in this embodiment, since six reagent kits 150 need to be arranged, seven cooling baffles 134 are arranged on the cooling bottom plate 132, thereby limiting six holding portions for placing the reagent kits 150. The holding portion is a space enclosed by adjacent cooling baffles 134 and the cooling bottom plate 132.

[0035] The cooling baffles 134 and the cooling bottom plate 132 may be detachably connected or integrally formed. In this embodiment, the cooling baffles 134 are bonded to the cooling bottom plate 132 by heat conductive materials, so the number of cooling baffles 134 and the distance between adjacent cooling baffles 134 can be flexibly set according to the size of the reagent kit 150 placed.

[0036] In this embodiment, the cooling block 130 needs to be made of a material with good thermal conductivity, such as aluminum, copper, or a copper-aluminum alloy.

[0037] Figure 2The three-dimensional structure diagram of the reagent box used in this embodiment is shown. A reagent box opening 152 is protrudingly provided on the surface of the reagent box 150 away from the bottom plate 112, which is used to receive the material extraction needle 224 to insert and absorb the reagent. An RFID tag 154 storing various information related to the reagent is provided on the surface of the end of the reagent box 150 that first enters the box body. The RFID tag 154 is a passive tag that does not require a battery. The RFID tag 154 stores various information such as the reagent code indicating the type of the reagent, the reagent's expiration date, the maximum number of times the reagent is used, the trip number independently assigned to each reagent, the batch number, the expiration date after opening, etc.

[0038] like Figure 3 As shown, the cover body 140 includes a first step covering portion 142 and a second step covering portion 144 arranged in a stepped shape. Figure 1 As shown, the distance between the first step covering portion 142 and the bottom plate 112 is greater than the distance between the second step covering portion 144 and the bottom plate 112, so as to form a second step structure on the cover 140. The second step structure cooperates with the first step structure to seal the top of the main body 110.

[0039] Furthermore, a second positioning column 146 or a second positioning hole 148 is provided on the contact surface between the cover body 140 and the side plate 114 for cooperating with the first positioning column 111 or the first positioning hole 113 on the side plate 114 to position the cover body 140 .

[0040] Specifically, when the first positioning column 111 is provided on the side plate 114, a second positioning hole 148 is provided at a corresponding position on the cover body 140, and the first positioning column 111 cooperates with the second positioning hole 148. When the first positioning hole 113 is provided on the side plate 114, a second positioning column 146 is provided at a corresponding position on the cover body 140, and the first positioning hole 113 cooperates with the second positioning column 146. The number of the first positioning holes 113 or the first positioning columns 111 is not specifically limited.

[0041] like Figure 1 and Figure 3 As shown, in this embodiment, a first positioning column 111 is provided on the second stepped surface 1145 of the first side plate 1142 and the third side plate 1146, and a first positioning hole 113 is provided on the first stepped surface 1143 of the first side plate 1142 and the third side plate 1146. A second positioning column 146 is provided at a position of the first stepped cover portion 142 corresponding to the first positioning hole 113, and a second positioning hole 148 is provided at a position of the second stepped cover portion 144 corresponding to the first positioning column 111.

[0042] Furthermore, a material extraction hole 156 is provided at a position on the first step covering portion 142 corresponding to the reagent reagent opening 152 , and the material extraction hole 156 is used to avoid the material extraction needle when the material extraction needle is inserted into the reagent reagent 150 .

[0043] like Figure 1 As shown, the refrigeration device 10 further includes a position detector 160 , which is disposed on a side of the second step covering portion 144 away from the main body 110 , that is, located outside the box formed by the main body 110 and the cover 140 .

[0044] Furthermore, the position detector 160 includes a detection probe 162. Figure 1 and Figure 3 As shown, a mounting hole 145 is provided on the second step covering portion 144 , and a detection probe 162 is disposed in the mounting hole 145 for detecting whether a reagent kit 150 is placed in the box.

[0045] The number of the detection probes 162 is equal to the number of the reagent kits 150 placed in the box, and may be one or more, which is not specifically limited in the embodiment of the present invention.

[0046] In this embodiment, there are six reagent kits 150 placed in the box, six detection probes 162, and six mounting holes 145 corresponding to the detection probes 162. Each mounting hole 145 and each detection probe 162 are provided corresponding to each holding portion, and each detection probe 162 is correspondingly accommodated in each mounting hole 145, for detecting whether a reagent kit 150 is provided in each holding portion.

[0047] Further, the top of the position detector 160 is flush with the surface of the first step covering portion 142 away from the bottom plate 112 , or is lower than the surface of the first step covering portion 142 away from the bottom plate 112 .

[0048] like Figure 4 As shown, in this embodiment, the surface of the position detector 160 that is farthest from the second step covering portion 144 is lower than the surface of the first step covering portion 142 away from the bottom plate 112, so that the structure of the refrigeration device 10 is more compact and smaller in size.

[0049] In this embodiment, the shape of the cooling fin 120 matches the shape of the embedding groove 116 , and the cooling fin 120 is disposed in the embedding groove 116 for cooling.

[0050] Specifically, see Figure 1 and Figure 4The refrigeration device 10 further includes a radiator 170, wherein the radiator 170 and the cooling block 130 are located on opposite sides of the bottom plate 112, and the radiator 170 is fixed at a position where the bottom plate 112 is provided with a groove 116. The groove 116 is a through groove that penetrates the bottom plate 112, and the refrigeration sheet 120 is disposed in the groove 116 and sandwiched between the cooling block 130 and the radiator 170. The cooling surface of the refrigeration sheet 120 is bonded to the cooling block 130 through a heat conductive material, and the heating surface of the refrigeration sheet 120 is bonded to the radiator 170 through a heat conductive material, so that heat is dissipated through the radiator 170.

[0051] Furthermore, the thickness of the cooling fin 120 may be equal to or less than the depth of the embedding groove 116. When the thickness of the cooling fin 120 is equal to the depth of the embedding groove 116, both surfaces of the cooling fin 120 may be closely attached to the heat sink 170 and the cooling base plate 132 to achieve high heat transfer efficiency.

[0052] like Figure 5 As shown, when the thickness of the cooling fin 120 is less than the depth of the embedding groove 116, in order to make the cooling fin 120 directly contact with the cooling bottom plate 132, a metal block 180 matching the shape of the embedding groove 116 can be arranged in the embedding groove 116. The sum of the thickness of the cooling fin 120 and the thickness of the metal block 180 is equal to the depth of the embedding groove 116, that is, the surface where the metal block 180 contacts the cooling bottom plate 132 is flush with the surface where the bottom plate 112 contacts the cooling bottom plate 132. At this time, the cooling bottom plate 132 is tightly attached to the bottom plate 112 and the metal block 180, so that the conduction efficiency of the cooling fin 120 is higher, thereby improving the cooling effect.

[0053] Furthermore, the refrigeration device 10 further includes a label reader 190, which is used to read the label on the reagent kit 150. Figure 1 and Figure 4 As shown, the tag reader 190 is disposed on the side plate 114 , between adjacent cooling baffles 134 , and is disposed opposite to the RFID tag 154 on the reagent box 150 .

[0054] When the tag reader 190 reads the reagent information from the RFID tag 154, it sends radio waves to the RFID tag 154. After the radio waves encounter the RFID tag 154, a part of the radio waves is reflected to the tag reader 190. The reflected radio waves carry the reagent information stored in the RFID tag 154. Then, the tag reader 190 determines the detailed information of the reagent located at the corresponding position by reading the reagent information in the reflected radio waves.

[0055] In other embodiments, the label provided on the reagent box 150 may also be a common text label, and the label reader provided on the side panel 114 may be a visual reader for reading the text and other information on the label. Of course, other labels and label readers that cooperate with each other may also be used, and the present invention does not make specific limitations here.

[0056] The number of the label readers 190 is equal to the number of the reagent kits 150. The label reader 190 is not only used to read the reagent information on the corresponding reagent kit 150, but also used to determine whether the reagent information is consistent with the reagent information preset in the label reader 190.

[0057] For example, a reagent box 150 containing reagent A should be placed at a certain holding portion, and the reagent information of reagent A is preset in the label reader 190 corresponding to the holding portion. When the reagent box 150 containing reagent A is placed at the holding portion, the label reader 190 reads that the reagent information on the reagent box 150 is the same as the reagent information preset in the label reader 190, and then it is determined that the reagent box 150 is correctly placed, and a control signal is sent to other components connected thereto.

[0058] When the reagent box 150 containing reagent B is placed in the holding portion, the label reader 190 reads that the reagent information on the reagent box 150 is different from the reagent information preset in the label reader 190, then it is determined that the reagent box 150 is placed incorrectly, and no control signal is sent to other components connected thereto.

[0059] By providing a label reader 190 corresponding to each reagent box 150 , it is possible to prevent a reagent that does not match its position from being placed in the holding portion, and to prevent the material removal mechanism 220 from inserting a wrong reagent box 150 and contaminating the reagent.

[0060] Alternatively, if Figure 1 As shown, the refrigeration device 10 also includes heat-insulating cotton 192, which is covered on the cover 140 and the side plate 114 to block the heat exchange between the box and the outside and improve the refrigeration effect.

[0061] Another aspect of the present invention is to provide a material taking component 20, please continue to refer to Figure 6 and Figure 7 The material picking assembly 20 includes a sleeve 210, a material picking mechanism 220 and an elastic positioning mechanism 230. The sleeve 210 is provided with an upper stroke positioning hole 212 and a lower stroke positioning hole 214, the material picking mechanism 220 is slidably arranged in the sleeve 210, and the elastic positioning mechanism 230 is arranged on the material picking mechanism 220. When the material picking mechanism 220 slides to the upper stroke positioning hole 212 or the lower stroke positioning hole 214, the elastic positioning mechanism 230 elastically extends out and forms a positioning with the upper stroke positioning hole 212 or the lower stroke positioning hole 214.

[0062] In the embodiment of the present invention, an elastic positioning mechanism 230 is provided on the material taking mechanism 220, and an upper stroke positioning hole 212 and a lower stroke positioning hole 214 are provided on the sleeve 210. When the material taking mechanism 220 drives the elastic positioning mechanism 230 to move to the upper stroke positioning hole 212 or the lower stroke positioning hole 214, the elastic positioning mechanism 230 extends to the upper stroke positioning hole 212 or the lower stroke positioning hole 214 and forms a positioning therewith, thereby fixing the material taking mechanism 220 in the sleeve 210. The material taking assembly 20 has a simple structure and flexible control, and adopts a mechanical structure, which can avoid machine failure caused by using an electric mechanism.

[0063] The sleeve 210 is a tubular object with two ends open, and its cross-sectional shape can be rectangular, triangular or circular, etc., which is not specifically limited in the present invention. Figure 6 As shown, in this embodiment, the sleeve 210 is a rectangular tube.

[0064] The upper stroke positioning hole 212 is provided on the side of the sleeve 210 away from the refrigerating device 10. When the material taking mechanism 220 is located at the upper stroke positioning hole 212, the material taking mechanism 220 is separated from the reagent box 150. The lower stroke positioning hole 214 is provided on the side of the sleeve 210 close to the refrigerating device. When the material taking mechanism 220 is located at the lower stroke positioning hole 214, the material taking mechanism 220 is inserted into the reagent box to absorb the reagent.

[0065] like Figure 8 As shown, the material picking mechanism 220 includes a connecting seat 222, a material picking needle 224 and a connecting plate 226. The material picking needle 224 and the connecting plate 226 are arranged on the connecting seat 222. The axis of the material picking needle 224 is parallel to the sleeve 210. The connecting plate 226 is used to connect the elastic positioning mechanism 230 to the connecting seat 222.

[0066] The material collection needle 224 is a hollow tubular object, one end of which is used to absorb the reagent, and the other end is connected to an external pipeline, and the external pipeline is used to transfer the reagent absorbed by the material collection needle 224 to a designated detection position. The axis of the material collection needle 224 is set to be parallel to the sleeve 210 to prevent the material collection needle 224 from interfering with the sleeve 210 and damaging the material collection needle 224 when the material collection mechanism 220 slides relative to the sleeve 210.

[0067] The material taking mechanism 220 is slidably arranged in the sleeve 210, which specifically means that the material taking mechanism 220 can move relative to the sleeve 210. A first sliding member and a second sliding member can be respectively arranged on the material taking mechanism 220 and the sleeve 210. The first sliding member and the second sliding member cooperate with each other, so that the material taking mechanism 220 can only move along the axial direction of the sleeve 210.

[0068] In this embodiment, if Figure 6 and Figure 8As shown, the first sliding member and the second sliding member are a guide rail 240 and a slider 250. The guide rail 240 is fixed on the inner wall of the sleeve 210, and the length direction of the guide rail 240 is the same as the length direction of the sleeve 210. The slider 250 is fixed on the connecting seat 222.

[0069] Furthermore, the material picking mechanism 220 also includes a material picking needle baffle 228, which is fixed on the connecting seat 222 and is used to protect the material picking needle 224 and prevent the part of the material picking needle 224 located outside the sleeve 210 from contacting pollutants.

[0070] Optionally, the material taking mechanism 220 further includes a gripping portion 221, which is fixed to the connecting seat 222 and is used to pull the material taking mechanism 220 to move relative to the sleeve 210. The gripping portion 221 connected to the connecting seat 222 can facilitate pulling the material taking mechanism 220.

[0071] Specifically, Figure 8 As shown, the gripping portion 221 includes a pressing plate 223 and a reinforcing plate 225. The pressing plate 223 is located outside the sleeve 210 and is used to grip and apply force to the material taking mechanism 220. The reinforcing plate 225 is arranged to extend out of the sleeve 210, connecting the pressing plate 223 located outside the sleeve 210 and the material taking needle baffle 228 located inside the sleeve 210.

[0072] Among them, Figure 6 As shown, the plane where the reinforcing plate 225 is located is parallel to the axis of the material collection needle 224, and a guide groove 216 arranged along the axial direction of the material collection needle 224 is provided on the side wall of the sleeve 210. The reinforcing plate 225 extends through the guide groove 216 and is connected to the pressing plate 223. By providing the guide groove 216 parallel to the axial direction of the material collection needle 224, the moving track of the reinforcing plate 225 can be further limited, thereby improving the accuracy of the movement of the material collection needle 224 and improving the alignment accuracy of the material collection needle 224 and the opening of the reagent box.

[0073] The number of the guide grooves 216 is not specifically limited. In this embodiment, there are two guide grooves 216 .

[0074] like Figure 8 and Fig. 9 As shown, in this embodiment, the elastic positioning mechanism 230 includes a roller 232, a roller frame 234 and an elastic member 236. The elastic member 236 elastically connects the elastic positioning mechanism 230 to the connecting plate 226, so that the elastic positioning mechanism 230 can move in a direction close to or away from the connecting plate 226. The roller 232 is fixed on the roller frame 234 and can roll relative to the roller frame 234. The roller 232 abuts against the inner wall of the sleeve 210 and is used to roll along the inner wall.

[0075] By providing a roller 232 that rolls along the inner wall of the sleeve 210, rolling friction is used instead of sliding friction, so that the force pulling the material-removing mechanism 220 can be reduced, making the movement of the material-removing mechanism 220 more flexible.

[0076] Among them, Figure 7 As shown, the size of the upper travel positioning hole 212 and the lower travel positioning hole 214 is smaller than the size of the roller 232. This prevents the roller 232 from passing through the upper travel positioning hole 212 and the lower travel positioning hole 214 when moving to the upper travel positioning hole 212 and the lower travel positioning hole 214.

[0077] Furthermore, the connection plate 226 connects the elastic positioning mechanism 230 with the connection seat 222 , which actually connects the roller frame 234 with the connection seat 222 .

[0078] like Fig. 9 As shown, the roller frame 234 includes a base 231 and fixed blocks 235 arranged in parallel and spaced relation on the base 231. A first fixing hole 237 is arranged along the thickness direction of the fixed block 235, the roller 232 is sandwiched between the two fixed blocks 235, and the stud passes through the two first fixing holes 237 to fix the roller 232 on the roller frame 234.

[0079] like Figure 8 and Fig. 9 As shown, the base 231 is provided with second fixing holes 238 on the sides of the two fixing blocks 235 facing away from each other, and the connecting plate 226 is provided with two studs protruding from one end close to the roller frame 234. The studs are passed through the second fixing holes 238 and connected with nuts. The elastic member 236 is sleeved on the studs and clamped between the connecting plate 226 and the base 231.

[0080] When the roller 232 rolls along the inner wall of the sleeve 210, the elastic member 236 is in a compressed state. When the roller 232 rolls to the upper stroke positioning hole 212 or the lower stroke positioning hole 214, the elastic member 236 pushes the roller 232 into the upper stroke positioning hole 212 or the lower stroke positioning hole 214 to position the material taking mechanism 220. When the material taking mechanism 220 needs to be moved, the gripping portion 221 is directly dragged, and the roller 232 leaves the upper stroke positioning hole 212 or the lower stroke positioning hole 214 under the action of the pulling force and continues to roll along the sleeve 210.

[0081] Furthermore, if Figures 6 to 8 As shown, the material taking mechanism 220 further includes a position detection baffle 227, and the material taking assembly 20 further includes a position optical coupler 260 disposed on the sleeve 210. The position optical coupler 260 is used to detect whether the material taking mechanism 220 is located at the upper stroke positioning hole 212.

[0082] Specifically, Figure 6 and Figure 7 As shown, the position optical coupler 260 is arranged on the side of the upper stroke positioning hole 212 away from the lower stroke positioning hole 214. The position optical coupler 260 includes a transmitting end and a receiving end arranged in parallel and spaced apart. When the material picking mechanism 220 is located at the upper stroke positioning hole 212, the position detection baffle 227 is just between the transmitting end and the receiving end, thereby triggering the position optical coupler 260. Therefore, when the position detection baffle 227 is located between the transmitting end and the receiving end of the position optical coupler 260, the position optical coupler 260 detects that the material picking mechanism 220 is located at the upper stroke positioning hole 212, and feeds back the position information to the controller.

[0083] Furthermore, a limit hole 218 is provided on the sleeve 210. Figure 7 As shown, the limiting hole 218 is provided on the side of the upper stroke positioning hole 212 close to the lower stroke positioning hole 214. When it is detected that the material taking mechanism 220 is located at the upper stroke positioning hole 212, the limiting hole 218 is used to receive the limiting column inserted to fix the material taking mechanism 220. At this time, the limiting column passes through the limiting hole 218 and is located at the lower side of the roller 232, so as to stop the elastic positioning mechanism 230.

[0084] The present invention also provides a locking mechanism 30, see Fig.10 The locking mechanism 30 includes a sleeve 210, a material taking mechanism 220 and a safety lock mechanism 330. The material taking mechanism 220 is slidably arranged in the sleeve 210. The specific structures of the sleeve 210 and the material taking mechanism 220 are as described above and will not be repeated here. Please refer to the above embodiment for details.

[0085] The safety lock mechanism 330 includes a driver 332 and a stop assembly 334 . The stop assembly 334 is driven by the driver 332 to move, thereby stopping or allowing the material removal mechanism 220 to slide relative to the sleeve 210 .

[0086] Specifically, when the driver 332 does not drive the stopper assembly 334 to move, the stopper assembly 334 is separated from the material picking mechanism 220, and the material picking mechanism 220 can slide relative to the sleeve 210. When the driver 332 drives the stopper assembly 334 to move to a certain position, the stopper assembly 334 stops the material picking mechanism 220, and the material picking mechanism 220 remains stationary relative to the sleeve 210.

[0087] like Fig.10 As shown, the driver 332 includes a driving motor 331 , a driving handle 333 , and a driving optical coupler 335 . The driving motor 331 is used to receive a driving signal and drive the driving handle 333 to swing, and the driving optical coupler 335 is used to detect the position of the driving handle 333 .

[0088] Specifically, Fig.11 and Fig.12As shown, when the material taking mechanism 220 is allowed to slide relative to the sleeve 210 , the driving handle 333 is parallel to the stop assembly 334 , and the driving handle 333 is separated from the stop assembly 334 .

[0089] like Fig.13 and Fig.14 As shown, when the material picking mechanism 220 needs to be stopped, the driving handle 333 rotates clockwise, gradually contacts the stopper assembly 334, and pushes the stopper assembly 334 to move toward the material picking mechanism 220, and finally stops after swinging 90 degrees clockwise from the initial position, and becomes perpendicular to the material picking mechanism 220. At this time, the stopper assembly 334 contacts the elastic positioning mechanism 230, preventing the material picking mechanism 220 from moving.

[0090] In this embodiment, the driving motor 331 drives the driving handle 333 to swing to realize the movement of the stop assembly 334. In other embodiments, the driving motor 331 can also drive the driving handle 333 to move to realize the movement of the stop assembly 334. The embodiment of the present invention does not list the driving methods of the driving motor 331 one by one. It should be understood that other methods that can realize the driving motor 331 driving the driving handle 333 to move and push the stop assembly 334 to move are all within the protection scope of the present invention.

[0091] When the position detection baffle 227 is located between the position optical coupler 260, the position optical coupler 260 is triggered, and the position optical coupler 260 sends position information to the controller. The controller receives the position information and sends a drive signal to the drive motor 331. The drive motor 331 receives the drive signal and drives the drive handle 333 to move.

[0092] Please continue reading Fig.10 The locking mechanism 30 further includes a housing 340, the sleeve 210 and the material taking mechanism 220 are arranged on one side of the housing 340, and the safety lock mechanism 330 is arranged on the other opposite side of the housing 340. The housing 340 is provided with an avoidance hole 342, the sleeve 210 is provided with a limit hole 218, and a stopper assembly 334 is provided with a limit post 336 on one side close to the housing 340. When the stopper assembly 334 moves toward the housing 340, the limit post 336 penetrates and extends out of the avoidance hole 342 and the limit hole 218 to stop the material taking mechanism 220.

[0093] Specifically, the sleeve 210 is fixed on the shell 340 , and the limiting hole 218 on the sleeve 210 is aligned with the avoidance hole 342 on the shell 340 , and the limiting column 336 on the stop assembly 334 is also aligned with the limiting hole 218 and the avoidance hole 342 .

[0094] When the stopper assembly 334 approaches the housing 340, the limiting column 336 sequentially passes through the avoidance hole 342 and the limiting hole 218. Since the limiting hole 218 is located at the lower part of the upper stroke positioning hole 212, when the material taking mechanism 220 is located at the upper stroke positioning hole 212, the limiting column 336 is located below the elastic positioning mechanism 230, thereby limiting the movement of the material taking mechanism 220 in the direction of the lower stroke positioning hole 214, playing a role of stopping.

[0095] In this embodiment, the stopper assembly 334 further includes a main body plate 337 and side plates 338 disposed on both sides of the main body plate 337. A guide hole 339 is provided on the side plate 338, and a guide post 344 is provided at a position corresponding to the guide hole 339 on the housing 340. The guide hole 339 cooperates with the guide post 344, so that the stopper assembly 334 can move along the axial direction of the guide post 344 when it moves relative to the housing 340.

[0096] A through hole is also provided on the main plate 337, and a stud is provided at a position corresponding to the through hole on the shell 340. The locking mechanism 30 also includes an elastic reset member 350. The stud is provided through the through hole and connected to the nut. The elastic reset member 350 is provided on the stud and is located between the shell 340 and the main plate 337. By providing the elastic reset member 350 located between the shell 340 and the main plate 337, when the driving handle 333 is separated from the stopper assembly 334, the stopper assembly 334 can move in a direction away from the shell 340 under the action of the elastic force, so that the limit column 336 exits the limit hole 218 and the avoidance hole 342, so that the material taking mechanism 220 can slide relative to the sleeve 210.

[0097] The studs may be integrally formed with the housing 340 or detachably connected, which is not specifically limited in the embodiment of the present invention. Of course, the studs may also be provided on the main plate 337 and the through holes may be provided on the housing 340 .

[0098] Alternatively, if Fig.11 As shown, the elastic reset members 350 include two, and the two elastic reset members 350 are symmetrically arranged on both sides of the contact point between the driving handle 333 and the main plate 337 .

[0099] The contact point between the driving handle 333 and the main plate 337 refers to the contact point when the driving handle 333 is perpendicular to the main plate 337. The elastic reset member 350 is symmetrically arranged on both sides of the contact point, so that the two ends of the main plate 337 can be evenly stressed, preventing the stopper assembly 334 from tilting due to uneven stress during movement.

[0100] Furthermore, if Fig.10As shown, the limiting posts 336 are evenly arranged on the main body plate 337. The number of the limiting posts 336 is equal to the number of the limiting holes 218, and each limiting post 336 is arranged corresponding to each limiting hole 218.

[0101] In one embodiment, the side plate 338 and the main body plate 337 are on the same plane, that is, the distances between the side plate 338 and the main body plate 337 and the shell 340 are equal.

[0102] In this embodiment, if Fig.11 As shown, the distance between the side plate 338 and the housing 340 is greater than the distance between the main plate 337 and the housing 340, that is, the side plate 338 is L-shaped. By setting the distance between the side plate 338 and the housing 340 to be greater than the distance between the main plate 337 and the housing 340, on the one hand, the strength of the stopper assembly 334 can be enhanced to prevent deformation due to force. On the other hand, the limit column 336 provided on the main plate 337 can be inserted into the limit hole 218 to the maximum extent, preventing the deformation of the two ends of the stopper assembly 334 from affecting the movement of the limit column 336.

[0103] Another aspect of the present invention provides an analyzer 100, see Fig.15 and Fig.16 In this embodiment, the analyzer 100 may include a refrigeration device 10, a material taking component 20, and a locking mechanism 30. The refrigeration device 10 is used to store the reagent box 150; the material taking component 20 includes a material taking mechanism 220, which can move relative to the refrigeration device 10 to absorb reagents from the reagent box 150 or separate from the reagent box 150; the locking mechanism 30 is used to stop the material taking mechanism 220 when the material taking mechanism 220 is separated from the reagent box 150, so as to prevent the material taking mechanism 220 from being inserted into the reagent box 150.

[0104] In the embodiment of the present invention, by providing a locking mechanism 30 , the material taking mechanism 220 is stopped and positioned when the reagent kit 150 is replaced, thereby preventing the material taking mechanism 220 from sliding into the reagent kit 150 during the process of replacing the reagent kit 150 .

[0105] The specific structures of the refrigeration device 10, the material taking assembly 20 and the locking mechanism 30 are described in the previous text, and will not be described in detail in this embodiment. The working principle of the analyzer 100 will be described in detail below.

[0106] Among them, the analyzer 100 also includes a controller, which is used to receive and process feedback signals from the position optocoupler 260, the position detector 160, the label reader 190 and the drive motor 331, and send control commands to the position optocoupler 260, the position detector 160, the label reader 190 and the drive motor 331 to achieve detection.

[0107] See also Fig.17 , Fig.17 It is a schematic diagram of the working state when the reagent is contained in the reagent box 150. At this time, the elastic positioning mechanism 230 and the lower stroke positioning hole 214 form a positioning, and the material extraction mechanism 220 is fixed on the sleeve 210. The material extraction needle 224 passes through the thermal insulation cotton 192 and the cover body 140, enters the reagent box 150 through the opening of the reagent box 150, and is maintained at a certain position in the reagent box 150. The other end of the material extraction needle 224 is located in the sleeve 210 and is connected to other pipelines, which are used to transport the reagent sucked by the material extraction needle 224 to a specified position.

[0108] When the reagent in the reagent kit 150 is used up, or the reagent in the reagent kit 150 exceeds the expiration date, the reagent kit 150 needs to be removed and replaced with a new one.

[0109] See also Fig.18 , and combined with Figure 1-17 In step S10, if the reagent does not need to be replaced ("No" in step S10), the material extraction needle 224 continues to draw the reagent for detection. In the case where the reagent needs to be replaced ("Yes" in step S10), the analyzer 100 interrupts the process (step S20). Interruption processing means that the material extraction mechanism 220 no longer draws the reagent from the reagent box 150 for detection.

[0110] Next, step S30 is executed, and the pressing plate 223 pulls the material picking mechanism 220 to move upward from the lower stroke positioning hole 214. During the upward movement, when the position detection baffle 227 of the material picking assembly 20 moves to the position optical coupler 260, the controller determines that the material picking mechanism 220 is located at the upper stroke positioning hole 212 ("yes" in step S40); when the position detection baffle 227 does not move to the position optical coupler 260, the controller determines that the material picking mechanism 220 is not located at the upper stroke positioning hole 212 ("no" in step S40), and continues to execute step S30 to control the material picking mechanism 220 to move upward until the judgment structure is "yes".

[0111] When the controller determines that the result is "yes", the controller sends a driving signal to the driving motor 331 to execute step S50. In step S50, the driving motor 331 drives the driving handle 333 to swing, and the driving handle 333 abuts against the stopper assembly 334, and drives the stopper assembly 334 to move toward the direction close to the housing 340. Fig.19 As shown, the limiting column 336 is arranged to extend out of the limiting hole 218 and is located below the material taking mechanism 220, thereby preventing the material taking mechanism 220 from moving downward.

[0112] At this time, the reagent box 150 can be removed and replaced with a new reagent box 150. In step S60, the position detector 160 located in the refrigerating device 10 continuously detects whether a new reagent box 150 is placed in the refrigerating chamber. When the position detector 160 detects that a reagent box 150 is placed, the position detector 160 sends a feedback signal to the controller. The controller receives the feedback signal and sends a control command to the tag reader 190 to continue to perform step S70. When the position detector 160 does not detect that a reagent box 150 is placed, no operation is performed until a new reagent box 150 is placed.

[0113] In step S70, the label reader 190 in the refrigerator 10 reads the label on the reagent kit 150 and determines whether the reagent information is consistent with the reagent information preset in the label reader 190. If the reagent information is consistent, a feedback signal is sent to the controller, and the controller receives the feedback signal and sends a control command to the drive motor 331 to execute step S80; if the reagent information is inconsistent, step S60 is continued until the reagent information on the reagent kit 150 placed in the refrigerator is consistent with the reagent information preset in the label reader 190.

[0114] In step S80 , the controller sends a driving signal to the driving motor 331 , and the driving motor 331 receives the driving signal and drives the driving handle 333 to swing.

[0115] Specifically, the driving optical coupler 335 first detects the position of the driving handle 333 and feeds back the position information to the controller. The controller receives the feedback information and sends a driving signal to the driving motor 331 to make the driving handle 333 swing counterclockwise. After receiving the driving signal, the driving motor is actuated to drive the driving handle to move away from the housing 340 and separate from the stop assembly 334. The elastic reset member 350 resets the stop assembly 334. Fig.17 As shown. At this time, the limiting column 336 moves out of the limiting hole 218. Then, step S90 is performed, and the pressing plate 223 is pulled to allow the material taking mechanism 220 to move downward. When the material taking mechanism 220 moves downward to the lower stroke positioning hole 214, the elastic positioning mechanism 230 and the lower stroke positioning hole 214 form a positioning, so that the material taking needle 224 remains in the reagent box 150. Above, the replacement operation of the reagent box 150 is completed, and the detection process of the analyzer 100 can continue.

[0116] In this embodiment, by setting a position optical coupler 260 located in the material removal mechanism 220, a position detector 160 and a label reader 190 in the cold storage chamber, and a driving optical coupler 335 in the locking mechanism 30, the above detection modules cooperate with each other to complete the correct replacement of the reagent kit 150, and the next step of the operation is performed only when one module detects correctly. The judgment logic is simple, the operation is convenient, and the accuracy is high, which can prevent contamination or misdetection caused by placing the wrong reagent kit 150 in the cold storage chamber.

[0117] The above are only implementation modes of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An analyzer, characterized in that: include: A refrigeration device, a material taking component and a locking mechanism, wherein the refrigeration device is used to store the reagent box; the material taking component includes a material taking mechanism, and the material taking mechanism can move relative to the refrigeration device to absorb the reagent from the reagent box or separate from the reagent box; the locking mechanism is used to stop the material taking mechanism when the material taking mechanism is separated from the reagent box to prevent the material taking mechanism from being inserted into the reagent box; The material picking assembly comprises a sleeve, a material picking mechanism and an elastic positioning mechanism, wherein the sleeve is provided with an upper stroke positioning hole and a lower stroke positioning hole; the material picking mechanism is slidably arranged in the sleeve; the elastic positioning mechanism is arranged on the material picking mechanism, and when the material picking mechanism slides to the upper stroke positioning hole, the elastic positioning mechanism elastically extends out and forms a positioning with the upper stroke positioning hole, or when the material picking mechanism slides to the lower stroke positioning hole, the elastic positioning mechanism elastically extends out and forms a positioning with the lower stroke positioning hole; The locking mechanism includes a safety lock mechanism, and the safety lock mechanism includes a driver and a stop assembly, and the stop assembly is driven by the driver to move, thereby stopping or allowing the material taking mechanism to slide relative to the sleeve; the driver includes a driving motor, a driving handle and a driving optical coupler, the driving motor is used to receive a driving signal and drive the driving handle to swing, and the driving optical coupler is used to detect the position of the driving handle; When the stopping and picking mechanism is needed, the driving handle rotates clockwise, gradually contacts the stopping assembly, and pushes the stopping assembly to move in the direction close to the picking mechanism, until it swings 90 degrees clockwise from the initial position and stops, being perpendicular to the picking mechanism. At this time, the stopping assembly contacts the elastic positioning mechanism to prevent the picking mechanism from moving; The elastic positioning mechanism comprises a roller and a roller frame, the roller is fixed on the roller frame and can roll relative to the roller frame, and the roller abuts against the inner wall of the sleeve and is used to roll along the inner wall.

2. The analyzer according to claim 1, characterized in that The refrigeration device also includes: The main body comprises a bottom plate and side plates arranged around the sides of the bottom plate, the bottom plate is provided with a through embedding groove, and the top of the side plate is formed with a first step structure; A cooling fin, the shape of which matches the shape of the embedding groove, and the cooling fin is arranged in the embedding groove for cooling; A cooling block, comprising a cooling bottom plate and a cooling partition, wherein the cooling partition is arranged in parallel and at intervals on the cooling bottom plate and is used for placing the reagent kit; The cover body has a second step structure matched with the first step structure. The cover body is arranged on the main body and forms a box body with one side opened together with the main body.

3. The analyzer according to claim 2, characterized in that The refrigeration device further comprises a position detector, which is arranged on the cover body and is used to detect whether the reagent kit is placed in the box body.

4. The analyzer according to claim 3, characterized in that The refrigeration device further comprises a label reader, which is arranged on the side plate and is used for reading the label on the reagent box.

5. The analyzer according to claim 1, characterized in that The material picking mechanism also includes a position detection baffle, and the material picking assembly also includes a position optical coupler arranged on the sleeve, and the position optical coupler is used to detect whether the material picking mechanism is located at the upper stroke positioning hole.

6. The analyzer according to claim 1, characterized in that The stopper assembly comprises a main body plate and side plates arranged on both sides of the main body plate, and the distance between the main body plate and the shell is smaller than the distance between the side plates and the shell.

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