CN218222525U - Turbidimetric tube rack and clarity detection device - Google Patents

Abstract

The utility model discloses a turbidimetric tube rack and a clarity detection device, wherein the turbidimetric tube rack comprises a rack body and a shielding piece; the frame body is provided with a window structure which penetrates through the frame body in the front-back direction, and the window structure comprises a first window positioned at the front end of the frame body and a second window positioned at the rear end of the frame body; the frame body is provided with a plurality of pipe holes which are communicated with the window structure and are arranged at intervals, and the pipe holes are used for pipe fitting insertion; the shielding piece is movably arranged at the second window of the frame body, and the area for shielding the second window can be adjusted when the shielding piece moves relative to the frame body. This turbidimetric tube rack and clarity detection device can effectively avoid the light that the light source sent to follow the second window that does not have the corresponding region that the test tube was placed and penetrate directly into the eye and disturb the clarity inspection to improve and detect the precision.

Description

Turbidimetric tube rack and clarity detection device

Technical Field

The utility model belongs to the technical field of laboratory paraphernalia, concretely relates to turbidimetric tube rack and clarity detection device.

Background

In the clarity inspection methods of the Chinese pharmacopoeia 1990-2020 edition, a test tube in which a sample to be detected is placed is required to be vertically placed under an umbrella shed lamp in a darkroom, the illumination is 1000lx, the sample to be detected is irradiated by a light source, and the clarity of the sample to be detected is observed and compared in the horizontal direction. Wherein, place the test tube of treating the sample and place under the canopy lamp again in the tube hole of test-tube rack usually, and in order to satisfy clarity and compare the operation, the test-tube rack is provided with a plurality of tube holes usually to can bear a plurality of test tubes simultaneously, however, when sample quantity is less than the tube hole quantity of test-tube rack, the light source can follow the observation window of the test-tube rack that no sample was placed and penetrate into the eye directly, disturb the clarity inspection, lead to influencing the detection precision.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a than turbid pipe rack and clarity detection device, this than turbid pipe rack and clarity detection device can be when the tube hole quantity that sample quantity is less than the test-tube rack, avoid the light source to penetrate the inspection of eye interference clarity directly from the observation window of the test-tube rack that no sample was placed, improve and detect the precision.

The technical scheme for achieving the purpose comprises the following steps.

A turbidimetric tube rack comprises a rack body and a shielding piece;

the frame body is provided with a window structure penetrating in the front-back direction, and the window structure comprises a first window positioned at the front end of the frame body and a second window positioned at the rear end of the frame body; the frame body is provided with a plurality of pipe holes which are communicated with the window structure and are arranged at intervals, and the pipe holes are used for pipe fitting insertion; the baffle piece activity set up in the second window department of support body, just the baffle piece is relative the support body can be adjusted during the motion and shelter from the area of second window.

In some of these embodiments, the shield comprises a first shield plate and a second shield plate; along the direction of arranging of tube hole, first shielding plate with the second shielding plate all slide set up in on the support body, just first shielding plate with the second shielding plate can be followed the support body moves in opposite directions or moves back on the back mutually.

In some embodiments, the frame body is provided with a first chute and a second chute which are arranged in opposite directions at the upper end and the lower end of the second window, the upper ends of the first shielding plate and the second shielding plate are arranged on the first chute in a sliding manner, and the lower ends of the first shielding plate and the second shielding plate are arranged on the second chute in a sliding manner.

In some embodiments, along the arrangement direction of the tube holes, a plurality of clamping grooves are formed in the position, in which the frame body is in movable contact with the shielding member, one clamping groove is formed between every two adjacent tube holes, the shielding member is provided with an elastic clamping piece matched with the clamping groove, and the shielding member can be clamped into the clamping groove when moving to the position, opposite to the clamping groove, of the elastic clamping piece.

In some embodiments, the elastic clamping piece comprises a clamping body and an elastic piece, the clamping body is arranged on the frame body through the elastic piece, the clamping body is an arc-shaped body, and the clamping groove is an arc-shaped groove matched with the clamping body.

In some embodiments, the turbidimeter tube rack further comprises a transmission assembly, the lower end of the first shielding plate is connected with the lower end of the second shielding plate through the transmission assembly, and the transmission assembly can drive the second shielding plate to synchronously move in opposite directions or move in opposite directions when the first shielding plate is pushed, or the transmission assembly can drive the first shielding plate to synchronously move in opposite directions or move in opposite directions when the second shielding plate is pushed.

In some embodiments, the transmission assembly includes a first rack, a second rack, and a gear, the first rack is disposed at the lower end of the first shielding plate, the second rack is disposed at the lower end of the second shielding plate, the gear is disposed between the first rack and the second rack, and both the first rack and the second rack are engaged with the gear.

In some embodiments, the position of the first and/or second shielding plate outside the rack body is provided with a poke rod.

In some embodiments, the frame body comprises a bottom plate, a top plate and two oppositely arranged side plates, the side plates are vertically arranged on the bottom plate, the top plate is erected on the two side plates, the bottom plate, the top plate and the two side plates are matched to form a frame with the window structure, the top plate is vertically provided with the tube hole, and a positioning groove is arranged at a position, corresponding to the tube hole, of the bottom plate.

The utility model provides a clarity detection device, clarity detection device includes canopy lamp house and as above than turbid pipe rack, canopy lamp house include the box and set up in light source in the box, the box has the observation window, turbid pipe rack arranges in on the canopy lamp house, than turbid pipe rack's window structure with the observation window corresponds the setting, the light beam that the light source sent is followed the observation window jets out.

The utility model provides a technical scheme has following advantage and effect:

this turbidimetric tube rack can be fixed in on the canopy lamp house, and this turbidimetric tube rack's window structure can correspond the setting with the observation window of canopy lamp house, thereby be convenient for carry out the clarity through turbidimetric tube rack towards the first window or the second window of measurement personnel's one side to waiting to detect the sample of placing in the test tube on turbidimetric tube rack and detect, wherein second window department through turbidimetric tube rack sets up the shielding piece of activity, can adjust the position of shielding piece through placing test tube quantity on turbidimetric tube rack and placing position, so that the second window is blocked by the shielding piece corresponding to the region that no test tube was placed, light only can be followed the second window that has the corresponding region that the test tube was placed and jets out, avoid the light that the light source sent to penetrate into the eye from the second window that does not have the corresponding region that the test tube was placed and disturb the clarity inspection, thereby improve and detect the precision.

Drawings

FIG. 1 is a schematic structural view of a turbidimetric tube rack according to an embodiment of the present invention;

FIG. 2 is a schematic view of the transmission of the first and second shutters of FIG. 1;

fig. 3 is a schematic structural view of the spring catch of fig. 1.

Description of reference numerals:

100. a turbidimetric tube rack;

1. a frame body; 11. a first window; 12. a second window; 13. a tube hole; 14. a base plate; 15. a top plate; 16. a side plate; 17. a connecting plate; 18. a positioning groove; 19. a first chute; 20. a second chute; 2. a shield; 21. a first shielding plate; 22. a second shielding plate; 23. the elastic clamping piece; 231. a card body; 232. an elastic member; 3. a transmission assembly; 31. a first rack; 32. a second rack; 33. a gear; 4. a poke rod.

Detailed Description

In order to facilitate an understanding of the invention, specific embodiments thereof will be described in more detail below with reference to the accompanying drawings.

As used herein, "first and second" \ 8230 "are used unless otherwise indicated or defined and are used merely to distinguish between names and do not denote any particular quantity or order.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, unless otherwise specified or defined.

It should be noted that "fixed to" or "connected to" in this document may be directly fixed to or connected to one element or may be indirectly fixed to or connected to one element.

The utility model provides a turbidimetric tube rack 100, as shown in fig. 1 to fig. 2, the turbidimetric tube rack 100 comprises a rack body 1 and a shielding piece 2. It should be noted that, the conventional umbrella canopy light box generally has an observation window and a light source for observing the turbidimetric tube rack 100, specifically, the turbidimetric tube rack 100 is integrally fixed outside the observation window of the umbrella canopy light box, and a light beam emitted by the light source is emitted from the observation window to the turbidimetric tube rack 100.

The frame body 1 has a window structure which runs through in the front-back direction, the window structure comprises a first window 11 positioned at the front end of the frame body 1 and a second window 12 positioned at the rear end of the frame body 1, wherein the front end and the rear end of the frame body 1 refer to two opposite ends in space position, and are not the front end and the rear end in absolute sense. Support body 1 is equipped with the tube hole 13 that sets up with a plurality of intervals of window structure intercommunication, and tube hole 13 is used for the pipe fitting to peg graft, specifically, and this each tube hole 13 can be followed the length direction of support body 1 and set up at interval in proper order, and the pipe fitting of placing the sample of treating detects can place in support body 1's tube hole 13 like the test tube, and a plurality of tube holes 13 can bear a plurality of test tubes simultaneously. The shielding piece 2 is movably arranged at the second window 12 of the frame body 1, and the area for shielding the second window 12 can be adjusted when the shielding piece 2 moves relative to the frame body 1; specifically, the test tube is inserted into the tube hole 13 of the rack 1 and extends into the window structure. Wherein, the assembling relationship between the turbidimetric tube rack 100 and the umbrella shed lamp box can be as follows: on the turbidimetric tube rack 100 was fixed in the canopy lamp house, the observation window adjacent setting of first window 11 and canopy lamp house of turbidimetric tube rack 100, the test tube of window structure department was penetrated into through first window 11 to the light beam that the light source of canopy lamp house sent, and second window 12 is towards the measurement personnel, and the measurement personnel passes through the clarity of this second window 12 detection test tube. Alternatively, the assembling relationship between the turbidimeter tube rack 100 and the umbrella shed light box may be: on the turbidimetric tube rack 100 was fixed in the canopy lamp house, the second window 12 of turbidimetric tube rack 100 set up with the observation window of canopy lamp house is adjacent, and the test tube of window structure department is penetrated into through second window 12 to the light beam that the light source of canopy lamp house sent, and first window 11 is towards the measurement personnel, and the measurement personnel passes through the clarity that this first window 11 detected the test tube.

By last, when being fixed in the canopy lamp house with turbidimetric tube rack 100, turbidimetric tube rack 100's window structure corresponds the setting with the observation window of canopy lamp house, thereby be convenient for through turbidimetric tube rack 100 towards the first window 11 or the second window 12 of detection personnel's one side to place the sample of waiting to detect in the test tube on turbidimetric tube rack 100 and observe, wherein second window 12 department through turbidimetric tube rack 100 sets up the shielding member 2 of activity, specifically can be a holistic shielding member 2 or the cooperation of polylith shielding member 2 is sheltered from, do not do special restriction here, can be according to placing test tube quantity on turbidimetric tube rack 100 and placing the position, and then adjust the position of shielding member 2, so that second window 12 is corresponding to no test tube and is placed the region by shielding member 2, light only can be followed the second window 12 that has the corresponding region that the test tube placed and jets out, avoid the light that the light source sent to penetrate into the eye from the second window 12 that does not have the corresponding region that the test tube placed.

In conclusion, this turbidimetric tube rack 100 can be fixed in on the canopy lamp house, and this turbidimetric tube rack 100's window structure can correspond the setting with the observation window of canopy lamp house, thereby be convenient for through turbidimetric tube rack 100 towards the first window 11 or the second window 12 of detection personnel's one side to placing wait to detect the sample and carry out the clarity detection in the test tube on turbidimetric tube rack 100, wherein the second window 12 department through turbidimetric tube rack 100 sets up the shielding piece 2 of activity, can adjust the position of shielding piece 2 through placing test tube quantity and placing the position on turbidimetric tube rack 100, so that second window 12 is blocked by shielding piece 2 corresponding to the region that no test tube was placed, light only can be followed the second window 12 that has the corresponding region that the test tube was placed, avoid the light that the light source sent to follow the second window 12 that no test tube was placed and penetrate directly to the eye from the corresponding region and disturb the clarity inspection, thereby improve the detection precision.

In some embodiments, as shown in fig. 1, the rack body 1 includes a bottom plate 14, a top plate 15 and two opposite side plates 16, the side plates 16 are vertically disposed on the bottom plate 14, the top plate 15 is erected on the two side plates 16, the bottom plate 14, the top plate 15 and the two side plates 16 cooperate to form a frame with a window structure, the top plate 15 is vertically provided with a pipe hole 13, and a position of the bottom plate 14 corresponding to the pipe hole 13 is provided with a positioning groove 18. Through the pipe hole 13 on the roof 15 of support body 1 and the positioning groove 18 cooperation on the bottom plate 14, vertical correspondence about pipe hole 13 and the positioning groove 18, the test tube is pegged graft in the pipe hole 13 of roof 15, and the positioning groove 18 on the bottom plate 14 is placed in the bottom of test tube to make the test tube can stably erect not slope. In addition, specifically, the rack body 1 further includes two connecting plates 17, and the two connecting plates 17 are respectively connected to the top plate 15 and the bottom plate 14 on the side close to the first window 11 or the second window 12, specifically, in this embodiment, as shown in fig. 1, the two connecting plates 17 are respectively connected to the top plate 15 and the bottom plate 14 on the side close to the second window 12; the two connecting plates 17 are embedded on the umbrella shed light box in a matching way, so that the turbidimetric tube rack 100 can be integrally fixed at the adaptive position on the umbrella shed light box under the action of the connecting plates 17.

In some embodiments, as shown in fig. 1, the shutter 2 comprises a first shutter 21 and a second shutter 22; along the direction of arranging of tube hole 13, first shielding plate 21 and the activity of second shielding plate 22 set up on support body 1, and first shielding plate 21 and second shielding plate 22 can follow support body 1 and move in opposite directions or move back to back. It can understand, move in opposite directions through first shielding plate 21 and second shielding plate 22 in order to close this second window 12 gradually, perhaps move in opposite directions through first shielding plate 21 and second shielding plate 22 in order to open this second window 12 gradually to make these two shielding plates can be according to the size of waiting to detect sample quantity and adjust second window 12, shelter from the light source that does not wait to detect the sample position, reduce the influence of light source to the observation, can seal this second window 12 after the experiment finishes simultaneously, prevent that the foreign matter from getting into inside the canopy lamp house.

In some embodiments, the frame body 1 is provided with a first sliding chute 19 and a second sliding chute 20 at the upper end and the lower end of the second window 12, which are oppositely disposed, specifically in this embodiment, the first sliding chute 19 is provided at the end of the rear end of the top plate 15 close to the second window 12, the second sliding chute 20 is provided at the end of the rear end of the bottom plate 14 close to the second window 12, the upper ends of the first shielding plate 21 and the second shielding plate 22 are both slidably disposed on the first sliding chute 19, that is, the tops of the first shielding plate 21 and the second shielding plate 22 are both slidably disposed on the first sliding chute 19; the lower ends of the first shielding plate 21 and the second shielding plate 22 are slidably disposed on the second sliding groove 20, that is, the bottoms of the first shielding plate 21 and the second shielding plate 22 are slidably disposed on the second sliding groove 20. It can understand, the upper and lower extreme of this first shielding plate 21 all slides and sets up in support body 1, and the upper and lower extreme of second shielding plate 22 all slides and sets up in support body 1 to make first shielding plate 21 and second shielding plate 22 can follow the direction of arranging of tube hole 13 and slide in order to adapt to the adjustment position, thereby make first shielding plate 21 and second shielding plate 22 cooperation can be according to the size of waiting to detect sample quantity regulation second window 12, shelter from not having the light source that detects the sample position.

In some embodiments, as shown in fig. 2 and 3, along the arrangement direction of the tube holes 13, a plurality of clamping grooves are formed in positions of the frame body 1, which are in movable contact with the shielding member 2, a clamping groove is formed between two adjacent tube holes 13, the shielding member 2 is provided with an elastic clamping member 23 adapted to the clamping grooves, and the shielding member 2 can be clamped into the clamping grooves when moving to a position where the elastic clamping member 23 is opposite to the clamping grooves. Specifically, in this embodiment, a plurality of clamping grooves are formed in the position, corresponding to the first sliding groove 19, of the top plate 15 of the frame body 1, a clamping groove is formed between two adjacent pipe holes 13, and the upper ends of the first shielding plate 21 and the second shielding plate 22 are provided with elastic clamping pieces 23 matched with the clamping grooves. It will be appreciated that when the shield 2 is slid to the edge of one of its apertures 13, the resilient catches 23 snap into the catches to move the shield 2 into position and to improve the push-pull feel.

In some embodiments, as shown in fig. 3, the elastic clip 23 includes a clip body 231 and an elastic member 232, the clip body 231 is disposed on the frame body 1 through the elastic member 232, the clip body 231 is an arc-shaped body, and the clip groove is an arc-shaped groove adapted to the clip body 231. The elastic member 232 may be a member having elastic properties, such as a spring, and is not particularly limited herein. It can be understood that the card body 231 and the card slot form an arc-shaped fit, on one hand, the card body 231 can smoothly slide into the card slot for positioning, and on the other hand, the card body 231 can smoothly slide out of the card slot under the action of external force, so that the card body 231 of the shielding member 2 can be conveniently separated from the card slot under the action of external force to adjust the position of the shielding member 2.

In some embodiments, as shown in fig. 2, the turbidimeter tube rack 100 further includes a transmission assembly 3, the lower end of the first shielding plate 21 is connected to the lower end of the second shielding plate 22 through the transmission assembly 3, and the transmission assembly 3 can drive the second shielding plate 22 to synchronously move toward or away from each other when the first shielding plate 21 is pushed, or the transmission assembly 3 can drive the first shielding plate 21 to synchronously move toward or away from each other when the second shielding plate 22 is pushed. It can be understood that, through the transmission action of the transmission assembly 3, when an external force pushes any one of the first shielding plate 21 and the second shielding plate 22, the two shielding plates can move towards each other or away from each other at the same time, and the adjustment is simpler and more convenient. It should be noted that, in this embodiment, when the test tube is placed on the rack body 1, the test tube is placed from the tube hole 13 at the middle position of the rack body 1 in a conventional placement method, and then the test tube is placed from the tube hole 13 at the middle position of the rack body 1 to both sides in sequence, so that when the first shielding plate 21 and the second shielding plate 22 move towards each other to close the second window 12, the closing line of the first shielding plate 21 and the second shielding plate 22 is consistent with the central axis position of the tube hole 13 at the middle position of the rack body 1, so that the first shielding plate 21 and the second shielding plate 22 can also satisfy the function of adjusting the size of the second window 12 according to the number of samples to be detected on the premise that the two shielding plates move towards each other or away from each other simultaneously when pushing any one shielding plate.

In some embodiments, as shown in fig. 2, the transmission assembly 3 includes a first rack 31, a second rack 32 and a gear 33, the first rack 31 is disposed at the lower end of the first shielding plate 21, the second rack 32 is disposed at the lower end of the second shielding plate 22, the gear 33 is disposed between the first rack 31 and the second rack 32, and both the first rack 31 and the second rack 32 are engaged with the gear 33. It can be understood that, through the meshing transmission effect of the first rack 31, the second rack 32 and the gear 33, even if two shielding plates move towards each other or away from each other at the same time, any one shielding plate can be pushed, and the structure is simple and the operation is convenient.

In some embodiments, as shown in fig. 2, the first and/or second shielding plates 21 and 22 are provided with the tap lever 4 at a position outside the magazine body 1. The poke rod 4 is convenient for being held by hands and pushed to operate, and is convenient for operation of detection personnel.

In some embodiments, the frame body 1 and the shielding member 2 are both made of black opaque hard plastic, such as acrylic, ABS engineering plastic, PP, nylon, etc., and the matte surface, such as frosted, is easy to generate mottled light compared with non-black matte material, resulting in the problem of affecting observation, the turbidimetric tube frame 100 of the present embodiment can reduce stray light, facilitate observation, and can reduce scraping and abrasion to the wall of the frame body 1 when the test tube is taken and placed.

In some embodiments, the distance between the top plate 15 and the bottom plate 14 of the rack 1 may be set according to the specification of the test tube, and in this embodiment, the distance between the top plate 15 and the bottom plate 14 is 45mm to 55mm, so that the height of the test tube is sufficient for observing the sample to be detected, and the test tube is adapted to a commercially available illuminometer probe, and can be directly clamped between the top plate 15 and the bottom plate 14 to measure the illuminance.

The utility model also provides a clarity detection device, clarity detection device include umbrella canopy lamp house and than turbid pipe rack 100 as above, and the umbrella canopy lamp house includes the box and sets up the light source in the box, and the box has the observation window, and than turbid pipe rack 100 sets up on the umbrella canopy lamp house, and the window structure of than turbid pipe rack 100 corresponds the setting with the observation window, the light beam that the light source sent jets out the window structure from the observation window.

The operating principle of the clarity detection device of one embodiment is as follows:

the method comprises the following steps: the window structure of the turbidimetric tube rack 100 is aligned with the observation window of the umbrella shed light box, the second window 12 of the turbidimetric tube rack 100 is arranged adjacent to the observation window of the umbrella shed light box, and the connecting plate 17 is embedded at the edge position of the observation window outside the umbrella shed light box.

Step two: in the darkroom, the light source is turned on, and the measured light meter probe is clamped between the top plate 15 and the bottom plate 14 of the turbidimetric vial rack 100 to determine whether the light source illumination reaches the experimental requirement of 1000Lx.

Step three: the standard turbidimetric glass tube and the sample turbidimetric glass tube are placed in the tube hole 13 of the turbidimetric tube rack 100, the poke rod 4 is pushed, the first shielding plate 21 and the second shielding plate 22 on the left side and the right side are moved towards the middle to adjust the second window 12 to be suitable for the number of the glass tubes, the area of the second window 12 without turbidimetric glass tubes in front is shielded, and then the clarity observation is carried out through the first window 11.

To sum up, this clarity detection device is through setting up this turbidimetric tube rack 100 and the cooperation of canopy lamp house, can make turbidimetric tube rack 100 be fixed in and carry out the clarity on the canopy lamp house and detect, wherein second window 12 department through turbidimetric tube rack 100 sets up the shielding piece 2 of activity, can be through placing test tube quantity on turbidimetric tube rack 100 and the position of placing position adjustment shielding piece 2, so that second window 12 is blocked by shielding piece 2 corresponding to the region that no test tube was placed, light only can be followed the second window 12 who has the corresponding region that the test tube was placed and jets out, the light that avoids the light source to send is penetrated the eye interference clarity inspection from the second window 12 of corresponding region that no test tube was placed and is penetrated directly, thereby improve and detect the precision.

The above embodiments are not intended to be exhaustive list of the present invention, and there may be many other embodiments not listed. Any replacement and improvement made on the basis of not violating the concept of the utility model belong to the protection scope of the utility model.

Claims (10)

1. The turbidimetric tube rack is characterized by comprising a rack body and a shielding piece;

the frame body is provided with a window structure which penetrates through the frame body in the front-back direction, and the window structure comprises a first window positioned at the front end of the frame body and a second window positioned at the rear end of the frame body; the frame body is provided with a plurality of pipe holes which are communicated with the window structure and are arranged at intervals, and the pipe holes are used for pipe fitting insertion; the shielding piece activity set up in the second window department of support body, just the shielding piece is relative the support body can be adjusted during the motion and shelter from the area of second window.

2. The turbidimeter tube rack of claim 1, wherein said shield comprises a first shield and a second shield; along the direction of arranging of tube hole, first shielding plate with the second shielding plate all slide set up in on the support body, just first shielding plate with the second shielding plate can be followed the support body moves in opposite directions or the motion of carrying on the back mutually.

3. The turbidimeter tube rack of claim 2, wherein the rack body is provided with a first chute and a second chute at the upper and lower ends of the second window, the first chute and the second chute being arranged in opposite directions, the upper ends of the first shielding plate and the second shielding plate are slidably arranged on the first chute, and the lower ends of the first shielding plate and the second shielding plate are slidably arranged on the second chute.

4. The turbidimeter tube rack of claim 1, wherein a plurality of clamping grooves are formed in the position of the rack body, which is in movable contact with the shielding member, along the arrangement direction of the tube holes, one clamping groove is formed between two adjacent tube holes, the shielding member is provided with an elastic clamping member adapted to the clamping grooves, and the shielding member can be clamped into the clamping grooves when moving to the position where the elastic clamping member is opposite to the clamping grooves.

5. The turbidimeter tube rack of claim 4, wherein the elastic clamping member comprises a clamping body and an elastic member, the clamping body is arranged on the rack body through the elastic member, the clamping body is an arc-shaped body, and the clamping groove is an arc-shaped groove matched with the clamping body.

6. The turbidimeter tube rack of claim 2, wherein the turbidimeter tube rack further comprises a transmission assembly, the lower end of the first shielding plate is connected with the lower end of the second shielding plate through the transmission assembly, the transmission assembly can drive the second shielding plate to synchronously move in the opposite direction or move in the opposite direction when the first shielding plate is pushed, or the transmission assembly can drive the first shielding plate to synchronously move in the opposite direction or move in the opposite direction when the second shielding plate is pushed.

7. The turbidimeter tube rack of claim 6, wherein said transmission assembly comprises a first rack, a second rack and a gear, wherein said first rack is disposed at the lower end of said first shutter, said second rack is disposed at the lower end of said second shutter, said gear is disposed between said first rack and said second rack, and said first rack and said second rack are both disposed in meshing engagement with said gear.

8. The turbidimeter tube rack of claim 6, wherein said first and/or said second shutter is provided with a tap lever at a position outside said rack.

9. The turbidimetric tube rack of any one of claims 1 to 8, wherein the rack body comprises a bottom plate, a top plate and two oppositely arranged side plates, the side plates are vertically arranged on the bottom plate, the top plate is erected on the two side plates, the bottom plate, the top plate and the two side plates are matched to form a frame with the window structure, the top plate is vertically provided with the tube hole, and a positioning groove is arranged at the position of the bottom plate corresponding to the tube hole.

10. Clarity detection device, its characterized in that, clarity detection device includes canopy lamp house and any one of claims 1 to 9 than turbid pipe rack, canopy lamp house include the box and set up in the light source in the box, the box has the observation window, than turbid pipe rack arrange in on the canopy lamp house, than turbid pipe rack's window structure with the observation window corresponds the setting, the light beam that the light source sent is followed the observation window jets out to the window structure.

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