Disposable cuvette cover

Abstract

The utility model relates to the technical field of experimental measuring instruments, and discloses a jettisonable cuvette cover which comprises an outer cover and an inner cover fixedly mounted in the middle of the bottom of the outer cover, a sealing plug is arranged below the outer side of the inner cover, a cavity is formed in the outer cover, and the cavity is communicated with the inner cover. Through mutual cooperation of a piston cylinder, a bearing rod, a feeding pipe, a plug plate, a threaded rod, a rotating disc, an inserting groove, a discharging pipe and a silica gel cross valve, a quantitative detection solution can be added into an inner cavity of the piston cylinder, so that quantitative adding of the detection solution is achieved, the detection solution can be extruded out through the arrangement of the piston cylinder and the plug plate, and the detection solution can be conveniently and rapidly added. According to the cuvette sample adding device, quantitative adding can be conveniently achieved under the condition that a professional sample adding tool is lacked, the discharging assembly can be clamped and limited through the arrangement of a side plate, a T-shaped rod and a reset spring, the phenomenon of accidental touch of the discharging assembly is avoided, and the connecting effect between the inner cover and the cuvette can be improved through the arrangement of a sealing plug and a telescopic spring.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental measuring instruments, in particular to a disposable cuvette cover. Background Art

[0002] The cuvette is the most commonly used device for photometric analysis. The bottom and two sides of the cuvette used in UV-visible spectrophotometry are made of frosted glass, and the other two sides are made of optical glass and bonded together with the light-transmitting surface. The light-transmitting surface of the cuvette is made of a material that can transmit light in the wavelength range used. The bottom of the cuvette used in fluorescence photometric analysis is made of frosted glass, and the four sides are bonded together with quartz glass.

[0003] Existing disposable cuvette covers are usually used in conjunction with cuvettes when in use. However, during the colorimetric determination process of the cuvette, the volume of the test solution required is small, and usually professional sample adding tools, such as a pipette, are required to add it. For ordinary people with testing needs or on-site operators, in the absence of professional sample adding tools, it is impossible to add quantitative detection solution, resulting in poor use of the device.

[0004] Therefore, we propose a disposable cuvette cover to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a disposable cuvette cover to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a disposable cuvette cover, comprising an outer cover and an inner cover fixedly installed in the middle of the bottom of the outer cover, a sealing plug is arranged at the lower part of the outer side of the inner cover, and a cavity is opened on the outer cover, a discharge assembly is installed in the inner cavity of the cavity, and a limit assembly is installed at one side of the top of the outer cover;

[0007] The discharging assembly includes a piston cylinder arranged below the cavity and a feeding pipe fixedly installed through one side of the piston cylinder, the other end of the feeding pipe is fixedly installed through the outer side of the outer cover, and a plug plate is fittedly installed near the upper part of the inner cavity of the piston cylinder, a threaded rod is movably installed in the middle of the top of the plug plate, the upper end of the threaded rod is threaded through and extends to the outside of the outer cover, and a turntable is fixedly installed on the upper end of the threaded rod, a discharging pipe is fixedly installed through the middle of the bottom of the piston cylinder, and a through hole is opened in the middle of the inner cover, and the lower end of the discharging pipe is fixedly installed through the outer cover to extend into the inner cavity of the through hole.

[0008] Preferably, the sealing plug and the inner cover are elastically connected via a plurality of telescopic springs.

[0009] Preferably, bearing rods are fixedly mounted on both sides of the bottom of the piston cylinder, and the lower ends of the bearing rods are fixedly mounted on the inner walls of the cavity.

[0010] Preferably, a plurality of slots are provided at equal intervals on the outer side of the turntable.

[0011] Preferably, a silicone cross valve is provided above the inner cavity of the discharge pipe.

[0012] Preferably, the limiting assembly includes a side plate fixedly mounted on one side of the top of the outer cover and a T-shaped rod movably installed on the side plate, the output shaft of the T-shaped rod is inserted into the inner cavity of one of the slots, and a reset spring is sleeved on the output shaft of the T-shaped rod, and the two ends of the reset spring are respectively fixedly mounted on the side plate and the T-shaped rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the cooperation among the piston cylinder, the bearing rod, the feeding tube, the plug plate, the threaded rod, the turntable, the slot, the discharge tube and the silicone cross valve, a quantitative test solution can be added into the inner cavity of the piston cylinder, thereby realizing the quantitative addition of the test solution. The setting of the piston cylinder and the plug plate can realize the extrusion of the test solution, which is convenient for the staff to realize the quantitative addition in the absence of professional sample adding tools.

[0015] 2. The side plates, T-shaped rods and reset springs can be used to clamp and limit the discharging assembly to avoid accidental collision, while the sealing plug and telescopic spring can improve the connection between the inner cover and the cuvette. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall stereogram of the utility model;

[0017] Figure 2 It is a right side perspective view of the present utility model;

[0018] Figure 3 It is a bottom view of the utility model;

[0019] Figure 4 It is a partial bottom-view cross-sectional view of the utility model;

[0020] Figure 5 It is a partial cross-sectional stereoscopic view of the utility model;

[0021] Figure 6 It is a partial structural stereogram of the inner cover of the utility model;

[0022] Figure 7 It is a partial structural stereogram of the outer cover of the utility model;

[0023] Figure 8 For the utility model Figure 3 Enlarged view of point A in the middle;

[0024] Fig. 9 For the utility model Figure 5 Enlarged view of point B in the middle;

[0025] Fig.10 For the utility model Figure 6 Enlarged view of center C.

[0026] In the figure: 1. outer cover; 2. inner cover; 3. sealing plug; 31. telescopic spring; 4. discharge assembly; 41. piston cylinder; 411. load-bearing rod; 42. feeding pipe; 43. plug plate; 44. threaded rod; 45. turntable; 451. slot; 46. discharge pipe; 461. silicone cross valve; 5. limit assembly; 51. side plate; 52. T-rod; 53. reset spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1: Please refer to Figure 1-10 A disposable cuvette cover comprises an outer cover 1 and an inner cover 2 fixedly mounted at the middle of the bottom of the outer cover 1, a sealing plug 3 is arranged at the lower part of the outer side of the inner cover 2, and a cavity is opened on the outer cover 1, a discharge assembly 4 is installed in the inner cavity of the cavity, and a limiting assembly 5 is installed at one side of the top of the outer cover 1. The setting of the discharge assembly 4 facilitates the addition of the detection solution into the cuvette, and the setting of the limiting assembly 5 can limit the discharge assembly 4 to avoid accidental contact.

[0029] The discharge assembly 4 includes a piston cylinder 41 arranged below the cavity and a feeding pipe 42 fixedly installed through one side of the piston cylinder 41, the other end of the feeding pipe 42 is fixedly installed through the outer side of the outer cover 1, and a plug plate 43 is installed close to the upper part of the inner cavity of the piston cylinder 41, a threaded rod 44 is movably installed in the middle of the top of the plug plate 43, the upper end of the threaded rod 44 is threaded through and extends to the outside of the outer cover 1, and a turntable 45 is fixedly installed on the upper end of the threaded rod 44, a discharge pipe 46 is fixedly installed through the middle of the bottom of the piston cylinder 41, and a through hole is opened in the middle of the upper inner cover 2, the lower end of the discharge pipe 46 is fixedly installed through the outer cover 1 and extends to the inner cavity of the through hole, and the arrangement of the piston cylinder 41 and the plug plate 43 can facilitate the extrusion of the solution.

[0030] The sealing plug 3 and the inner cover 2 are elastically connected via a plurality of telescopic springs 31, thereby improving the connection effect between the inner cover 2 and the cuvette.

[0031] The bearing rods 411 are fixedly mounted on both sides of the bottom of the piston cylinder 41 , and the lower ends of the bearing rods 411 are fixedly mounted on the inner wall of the cavity. The piston cylinder 41 can be supported and fixed by the arrangement of the bearing rods 411 .

[0032] A plurality of slots 451 are provided at equal intervals on the outer side of the rotating disk 45 to facilitate the implementation of the limiting work.

[0033] A silicone cross valve 461 is provided above the inner cavity of the discharge pipe 46. The silicone cross valve 461 can be opened when the pressure increases, so as to facilitate the discharge.

[0034] In this embodiment: when in use, the inner cover 2 is first covered on the cuvette, and the setting of the sealing plug 3 and the telescopic spring 31 can make the covering effect of the inner cover 2 better, and then the turntable 45 can be rotated to drive the threaded rod 44 to rotate, and the rotation of the threaded rod 44 can drive the plug plate 43 to move downward under the action of the piston cylinder 41, thereby squeezing the detection solution. At this time, the pressure in the inner cavity of the piston cylinder 41 increases to open the silicone cross valve 461, and then the detection solution is added to the cuvette through the discharge pipe 46, which is convenient for the detection work.

[0035] Embodiment 2: This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 and Figure 8 The limiting assembly 5 includes a side plate 51 fixedly mounted on one side of the top of the outer cover 1 and a T-shaped rod 52 movably installed on the side plate 51. The output shaft of the T-shaped rod 52 is inserted into the inner cavity of one of the slots 451. A reset spring 53 is sleeved on the output shaft of the T-shaped rod 52. The two ends of the reset spring 53 are respectively fixedly mounted on the side plate 51 and the T-shaped rod 52, so that the turntable 45 can be clamped and limited.

[0036] In this embodiment, before rotating the turntable 45, the T-shaped rod 52 can be pulled outward, and the reset spring 53 can drive the T-shaped rod 52 to move outward, and then make the T-shaped rod 52 away from the inner cavity of one of the slots 451. At this time, the limit on the turntable 45 can be released, and it can be clamped and fixed in the reverse direction.

[0037] Working principle: When in use, first cover the inner cover 2 on the cuvette, and the setting of the sealing plug 3 and the telescopic spring 31 can make the covering effect of the inner cover 2 better, and then the turntable 45 can be rotated to drive the threaded rod 44 to rotate, and the rotation of the threaded rod 44 can drive the plug plate 43 to move downward under the action of the piston cylinder 41, thereby squeezing the detection solution. At this time, the pressure in the inner cavity of the piston cylinder 41 increases to open the silicone cross valve 461, and then the detection solution is added to the cuvette through the discharge pipe 46, which is convenient for the detection work. Before rotating the turntable 45, the T-shaped rod 52 can be pulled outward, and the setting of the reset spring 53 can drive the T-shaped rod 52 to move outward, and then the T-shaped rod 52 is moved away from the inner cavity of one of the slots 451. At this time, the limit of the turntable 45 can be released, and it can be clamped and fixed in the reverse direction.

[0038] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A disposable cuvette cover, comprising an outer cover (1) and an inner cover (2) fixedly mounted at the middle of the bottom of the outer cover (1), characterized in that: A sealing plug (3) is provided at the lower part of the outer side of the inner cover (2), and a cavity is provided on the outer cover (1), a discharge assembly (4) is installed in the inner cavity of the cavity, and a limit assembly (5) is installed at one side of the top of the outer cover (1); The discharge assembly (4) comprises a piston cylinder (41) arranged below the cavity and a feeding pipe (42) fixedly installed through one side of the piston cylinder (41); the other end of the feeding pipe (42) is fixedly installed through the outer side of the outer cover (1); a plug plate (43) is installed close to the top of the inner cavity of the piston cylinder (41); a threaded rod (44) is movably installed in the middle of the top of the plug plate (43); the upper end of the threaded rod (44) is threadedly installed through the outer side of the outer cover (1); a turntable (45) is fixedly installed on the upper end of the threaded rod (44); a discharge pipe (46) is fixedly installed through the middle of the bottom of the piston cylinder (41); a through hole is opened in the middle of the upper part of the inner cover (2); the lower end of the discharge pipe (46) is fixedly installed through the outer cover (1) and extends into the inner cavity of the through hole.

2. A disposable cuvette cover according to claim 1, characterized in that: The sealing plug (3) and the inner cover (2) are elastically connected via a plurality of telescopic springs (31).

3. The disposable cuvette cover according to claim 1, characterized in that: Bearing rods (411) are fixedly mounted on both sides of the bottom of the piston cylinder (41), and the lower ends of the bearing rods (411) are fixedly mounted on the inner wall of the cavity.

4. The disposable cuvette cover according to claim 1, characterized in that: A plurality of slots (451) are provided at equal intervals on the outer side of the rotating disk (45).

5. The disposable cuvette cover according to claim 1, characterized in that: A silicone cross valve (461) is provided above the inner cavity of the discharge pipe (46).

6. The disposable cuvette cover according to claim 4, characterized in that: The limiting assembly (5) comprises a side plate (51) fixedly mounted on one side of the top of the outer cover (1) and a T-shaped rod (52) movably mounted on the side plate (51); an output shaft of the T-shaped rod (52) is inserted into an inner cavity of one of the slots (451); a return spring (53) is sleeved on the output shaft of the T-shaped rod (52); and two ends of the return spring (53) are respectively fixedly mounted on the side plate (51) and the T-shaped rod (52).

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