CN215492779U - Test tube clamping assembly for nitrogen blowing instrument - Google Patents
Test tube clamping assembly for nitrogen blowing instrument Download PDFInfo
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- CN215492779U CN215492779U CN202121108956.5U CN202121108956U CN215492779U CN 215492779 U CN215492779 U CN 215492779U CN 202121108956 U CN202121108956 U CN 202121108956U CN 215492779 U CN215492779 U CN 215492779U
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- test tube
- ring seat
- water bath
- inverted
- nitrogen blowing
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Abstract
The utility model discloses a test tube clamping assembly for a nitrogen blowing instrument, which comprises a water bath, a pore plate, an adjusting clamp and a support frame, wherein the pore plate is arranged on the water bath, the pore plate is provided with a plurality of through holes which are arranged in a matrix manner, the adjusting clamp and the through holes are arranged in a one-to-one correspondence manner, the adjusting clamp comprises a ring seat and a plurality of elastic sheets, the ring seat is arranged on the pore plate, the elastic sheets are connected with the ring seat in a sliding manner, the middle parts of the elastic sheets extend out of the through holes to clamp a test tube, the support frame is arranged at the bottom of the pore plate and is positioned in the water bath, and the support frame is used for supporting the bottom of the test tube. By adopting the test tube holder, the function of holding test tubes with different diameters is realized, the test tubes are ensured to be placed vertically, and the holding effect is good.
Description
Technical Field
The utility model relates to the technical field of nitrogen blowing instrument equipment, in particular to a test tube clamping assembly for a nitrogen blowing instrument.
Background
The nitrogen blowing instrument usually blows nitrogen gas into the surface of a heated sample to concentrate the sample, and the nitrogen gas is inactive gas and can play a role in isolating oxygen and prevent a reagent in a test tube from being oxidized. The nitrogen blowing instrument breaks the gas-liquid balance above the liquid by utilizing the rapid flow of the nitrogen, thereby accelerating the volatilization speed of the liquid; and the temperature is increased by a water bath heating mode, thereby achieving the purpose of concentration. Traditional nitrogen blows appearance test tube mount pad simple structure is provided with a plurality of through-holes of deciding the diameter in the mount pad, can only choose for use during the use with the test tube of through-hole diameter looks adaptation, if place the test tube that is less than the through-hole diameter, can appear placing unstable condition, and nitrogen blows the effect not good.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a test tube clamping assembly for a nitrogen blowing instrument, which realizes the function of clamping test tubes with different diameters, ensures that the test tubes are placed vertically and has good clamping effect.
In order to solve the technical problem, the utility model provides a test tube clamping assembly for a nitrogen blowing instrument, which comprises a water bath, a pore plate, an adjusting clamp and a support frame, wherein the pore plate is arranged on the water bath, the pore plate is provided with a plurality of through holes distributed in a matrix manner, the adjusting clamp and the through holes are arranged in a one-to-one correspondence manner, the adjusting clamp comprises a ring seat and a plurality of elastic sheets, the ring seat is arranged on the pore plate, the elastic sheets are in sliding connection with the ring seat, the middle parts of the elastic sheets extend out of the through holes to clamp a test tube, the support frame is arranged at the bottom of the pore plate and is positioned in the water bath, and the support frame is used for supporting the bottom of the test tube.
Wherein, the shell fragment is three or four, and the equipartition is in the ring seat.
The ring seat is internally provided with inverted T-shaped grooves with the same number as the elastic sheets, one ends of the elastic sheets are fixedly connected with the ring seat, the other ends of the elastic sheets are provided with T-shaped sliding sheets matched with the inverted T-shaped grooves, and the T-shaped sliding sheets slide in the inverted T-shaped grooves.
The ring seat is provided with a plurality of inverted T-shaped grooves, the number of the inverted T-shaped grooves is the same as that of the elastic sheets, the two tail ends of each elastic sheet are provided with T-shaped sliding sheets matched with the inverted T-shaped grooves, the T-shaped sliding sheets slide in the inverted T-shaped grooves, and the T-shaped sliding sheets and the end portions of the inverted T-shaped grooves are connected with springs.
The middle part of the elastic sheet is in a circular arc shape and protrudes outwards or sinks inwards towards the central line of the through hole.
Wherein, the middle part surface subsides of shell fragment have the cotton that prevents to scrape colored test tube.
Wherein, the support frame is including fixing the link and a plurality of brackets of installing on the link in the orifice plate bottom, a plurality of brackets and a plurality of through-hole position one-to-one, the bracket is helical structure to the spiral diameter is along orientation water bathing pool bottom extending direction reduces gradually.
Wherein, still including increaseing the device, increaseing the device and fixing in the water bath to its output is connected with the orifice plate, a water bath lateral wall has transparent viewing aperture, and the operator of being convenient for observes the test tube liquid level condition.
The height adjusting device comprises fixing seats, screw rods and guide columns, the fixing seats are installed on the outer side wall of the water bath, the two screw rods are in threaded connection with the fixing seats respectively, the upper tail ends of the screw rods are rotatably connected with the bottom of the pore plate, a hand wheel is fixed at the lower tail ends of the screw rods, the guide columns are in sliding connection with the fixing seats, and the upper tail ends of the guide columns are fixedly connected with the pore plate.
The beneficial effects of the implementation of the utility model are as follows: a plurality of regulation clamps are on the orifice plate to with through-hole one-to-one installation setting, be provided with a plurality of shell fragments that can take place deformation in the alignment jig, realize can toward the test tube of the different diameters of installation in the through-hole, extensive applicability is extensive, and the orifice plate bottom is provided with the support frame that can bearing test tube bottom, has guaranteed that the test tube can stand upright and has placed, and the centre gripping is effectual.
Drawings
FIG. 1 is a top view of a tube holder assembly for a nitrogen blowing apparatus according to the present invention;
FIG. 2 is a front view of a test tube holding assembly for a nitrogen blowing apparatus according to the present invention;
FIG. 3 is a first structural scheme of the test tube clamping assembly for a nitrogen blowing instrument, wherein a ring seat is connected with an elastic sheet;
FIG. 4 is a second structural scheme of the test tube clamping assembly for a nitrogen blowing instrument, wherein a ring seat is connected with an elastic sheet;
FIG. 5 is a schematic view of a first structure of a spring plate in a test tube clamping assembly for a nitrogen blowing apparatus according to the present invention;
FIG. 6 is a schematic diagram of a second structure of a spring plate in the test tube clamping assembly for the nitrogen blowing apparatus according to the present invention;
FIG. 7 is a top view of a support frame of a test tube holding assembly for a nitrogen blowing apparatus according to the present invention;
fig. 8 is a schematic connection diagram of an inverted T-shaped groove and a T-shaped sliding plate in a test tube clamping assembly for a nitrogen blowing instrument according to the present invention.
In the figure: 1. a water bath; 2. an orifice plate; 21. a through hole; 22. positioning holes; 3. adjusting the clamp; 31. a ring seat; 311. a T-shaped groove is inverted; 312. a positioning column; 32. a spring plate; 321. a T-shaped slip sheet; 33. a spring; 4. a support frame; 41. a connecting frame; 42. a bracket; 5. a height adjusting device; 51. a fixed seat; 52. a screw; 53. a guide post; 54. a handwheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-8, the test tube clamping assembly for a nitrogen blowing instrument of the present invention comprises a water bath 1, a hole plate 2, an adjusting clamp 3 and a support frame 4, wherein the hole plate 2 is installed on the water bath 1, the hole plate 2 is provided with a plurality of through holes 21 arranged in a matrix manner, wherein the specific number of the through holes 21 is determined by the number of nitrogen blowing tubes of the nitrogen blowing instrument, in the present embodiment, 15 through holes 21 are taken as an example, the through holes 21 are arranged in three rows and five columns, the adjusting clamp 3 is arranged corresponding to the through holes 21 one by one, the adjusting clamp 3 comprises a ring seat 31 and a plurality of elastic sheets 32, the ring seat 31 is installed on the hole plate 2, the center line of the ring seat 31 is coaxial with the center line of the through holes 21, the elastic sheets 32 are slidably connected with the ring seat 31, the middle portions of the elastic sheets 32 extend to the through holes 21 to clamp the test tube, the plurality of elastic sheets 32 clamp the test tube under their own elastic force to ensure the test tube to be upright, support frame 4 installs in 2 bottoms on the orifice plate to be located water bath 1, support frame 4 is used for the bottom of bearing test tube.
It should be noted that the connection between the ring seat 31 and the through hole 21 is a detachable connection, the bottom of the ring seat 31 is provided with three positioning pillars 312 uniformly distributed, the hole plate 2 is provided with three positioning holes 22 corresponding to the positioning pillars 312 one by one, and the positioning pillars 312 and the positioning holes 22 are matched to realize that the ring seat 31 is installed on the hole plate 2, so that the adjusting clamp 3 is convenient to assemble, disassemble and maintain.
The working principle of the utility model is as follows: during the installation, only need with the diameter ratio 21 little test tube correspondence insert through-hole 21 can, the test tube bottom is by 4 bearings of support frame, a plurality of shell fragments 32 do not act on the test tube lateral wall to cooperation centre gripping test tube, and guarantee that the test tube is upright to be placed, but realize the function of the test tube of the different diameters of centre gripping, extensive applicability is extensive.
Preferably, the number of the elastic sheets 32 is three or four, and the elastic sheets are uniformly distributed in the ring seat 31. In this embodiment, preferably, three elastic sheets 32 are optimal values, and the three elastic sheets 32 act on the test tube together, so as to ensure that the center line of the placed test tube is coaxial with the center line of the through hole 21.
The ring seat 31 and the spring plate 32 are mounted in two structural technical schemes:
the first structural scheme is as follows:
as shown in fig. 3, 6, and 8, inverted T-shaped grooves 311 are formed in the ring seat 31, the number of which is the same as that of the elastic pieces 32, one end of each elastic piece 32 is fixedly connected to the ring seat 31, and a T-shaped sliding piece 321 matched with the inverted T-shaped groove 311 is formed at the other end of each elastic piece 32, the T-shaped sliding piece 321 slides in the inverted T-shaped groove 311, and the T-shaped sliding piece 321 and the inverted T-shaped groove 311 are matched to prevent the elastic pieces 32 from being separated from the ring seat 31 in the deformation process. When the test tube is pressed into the through hole 21, the test tube acts on the surface of the elastic sheet 32, the elastic sheet 32 is pressed to deform, and the tail end of the elastic sheet 32 with the T-shaped sliding sheet 321 slides in the inverted T-shaped groove 311, so that the test tube can go deep into the through hole 21. When the test tube is pulled out of the through hole 21, the elastic sheet 32 is deformed again, and the tail end returns to the initial state.
The second structure scheme is as follows:
as shown in fig. 4, 5, and 8, inverted T-shaped grooves 311 are disposed in the ring seat 31, the number of which is the same as that of the elastic pieces 32, T-shaped sliding pieces 321 adapted to the inverted T-shaped grooves 311 are disposed at both ends of the elastic pieces 32, the T-shaped sliding pieces 321 slide in the inverted T-shaped grooves 311, and springs 33 are connected to end portions of the T-shaped sliding pieces 321 and the inverted T-shaped grooves 311, and the T-shaped sliding pieces 321 and the inverted T-shaped grooves 311 are matched to prevent the elastic pieces 32 from being separated from the ring seat 31 in the deformation process. When the test tube pressed into the through hole 21, the test tube acted on the surface of the elastic sheet 32, the elastic sheet 32 was pressed to deform, two ends of the elastic sheet 32 slid along the inverted T-shaped groove 311, the spring 33 was compressed, so that the test tube could go deep into the through hole 21, when the test tube pulled out the through hole 21, the elastic sheet 32 recovered the deformation, and the two ends returned to the initial state, the elastic sheet 32 was always positioned at the center of the corresponding inverted T-shaped groove 311 under the action of the spring 33, and the occurrence of deviation was avoided.
Preferably, the middle part of the elastic sheet 32 is a circular arc, and the middle structure of the elastic sheet 32 has two structures, one of which is shown in fig. 3 and 5, and the middle part of the elastic sheet 32 protrudes outwards towards the center line of the through hole 21; second, as shown in fig. 4 and 6, the middle portion of the elastic piece 32 is recessed inward toward the center line of the through hole 21. The two structures can ensure that the central line of the test tube is coaxial with the central line of the through hole 21 after the test tube is inserted into the through hole 21.
Preferably, the middle surface of the elastic sheet 32 is attached with cotton cloth, so that when the elastic sheet 32 contacts with the test tube, the elastic sheet 32 scratches the surface of the test tube and the measuring range label.
Preferably, referring to fig. 2 and 7, the support frame 4 includes a connecting frame 41 fixed at the bottom of the orifice plate 2 and a plurality of brackets 42 mounted on the connecting frame 41, in this embodiment, the number of the brackets 42 is 15, 15 brackets 42 correspond to the positions of the plurality of through holes 21 one by one, the brackets 42 are in a spiral structure, and the diameter of the spiral gradually decreases in the direction extending toward the bottom of the water bath 1. Because the bottom of test tube is the sphere, the support that adopts helical structure's bracket 42 can be fine is applicable to the test tube bottom of supporting different diameters.
Preferably, referring to fig. 1 and 2, the test tube liquid level measuring device further comprises a height adjusting device 5, wherein the height adjusting device 5 is fixed in the water bath 1, the output end of the height adjusting device 5 is connected with the pore plate 2, and a transparent observation port is arranged on one side wall of the water bath 1, so that an operator can observe the liquid level condition of the test tube conveniently. Because the solution in the test tube is concentrated the back, its liquid level can reduce for the liquid level is more and more far away from the nitrogen gas position of giving vent to anger of nitrogen gas appearance, thereby causes the waste of nitrogen gas, and consequently the height of test tube liquid level is observed to the transparent observation window of accessible, and adjusts the mounting height that high device 5 comes adjusting orifice plate 2 through adjusting, with the distance between the nitrogen gas position of giving vent to anger of shortening the nitrogen gas appearance and the test tube liquid level.
Specifically, referring to fig. 1 and 2, the height adjusting device 5 includes fixing seats 51, screws 52 and guide posts 53, six of the fixing seats 51 are mounted on the outer side walls of the left and right sides of the water bath 1, two screws 52 are respectively in threaded connection with the fixing seats 51 located in the middle, the upper ends of the screws 52 are rotatably connected with the bottom of the orifice plate 2, a hand wheel 54 is fixed at the lower end, four guide posts 53 are slidably connected with the remaining fixing seats 51, the upper ends of the guide posts 53 are fixedly connected with the orifice plate 2, and the guide posts 53 play a role in guiding. Through two handwheels 54 of operator's synchronous rotation, two screw rods 52 respectively with the fixing base 51 threaded connection that corresponds to make orifice plate 2 do elevating movement, realize the function of the mounting height of regulation orifice plate 2, at this in-process, the operator permeable transparent observation window observes the height of the interior liquid level of test tube, thereby confirms the position of orifice plate 2.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (9)
1. The utility model provides a test tube centre gripping subassembly for nitrogen blowing appearance, its characterized in that, includes water bath (1), orifice plate (2), regulation clamp (3) and support frame (4), install on water bath (1) orifice plate (2), orifice plate (2) are provided with a plurality of through-hole (21) of arranging with the matrix mode, regulation clamp (3) with through-hole (21) one-to-one sets up, and regulation clamp (3) include ring seat (31) and a plurality of shell fragment (32), install on orifice plate (2) ring seat (31), shell fragment (32) and ring seat (31) sliding connection to shell fragment (32) middle part is stretched out to through-hole (21) with the centre gripping test tube, install in orifice plate (2) bottom support frame (4) to be located water bath (1), support frame (4) are used for the bottom of bearing test tube.
2. The test tube holding assembly of claim 1, wherein the number of the spring plates (32) is three or four, and the spring plates are uniformly distributed in the ring seat (31).
3. The test tube clamping assembly for the nitrogen blowing instrument as claimed in claim 1, wherein the ring seat (31) is internally provided with inverted T-shaped grooves (311) with the same number as the elastic sheets (32), one end of each elastic sheet (32) is fixedly connected with the ring seat (31), the other end of each elastic sheet is provided with a T-shaped sliding sheet (321) matched with the inverted T-shaped groove (311), and the T-shaped sliding sheet (321) slides in the inverted T-shaped grooves (311).
4. The test tube clamping assembly for the nitrogen blowing instrument as claimed in claim 1, wherein the ring seat (31) is internally provided with inverted T-shaped grooves (311) with the same number as the elastic sheets (32), the two ends of the elastic sheets (32) are respectively provided with a T-shaped sliding sheet (321) matched with the inverted T-shaped grooves (311), the T-shaped sliding sheets (321) slide in the inverted T-shaped grooves (311), and the ends of the T-shaped sliding sheets (321) and the inverted T-shaped grooves (311) are connected with springs (33).
5. The test tube holding assembly for nitrogen blowing instrument as claimed in claim 3 or 4, wherein the middle of said elastic sheet (32) is circular arc and protrudes outward or is recessed inward toward the center line of the through hole (21).
6. The test tube holding assembly of claim 1, wherein the middle surface of the elastic sheet (32) is adhered with cotton cloth for preventing scratching of the test tube.
7. The test tube holding assembly for the nitrogen blowing instrument as claimed in claim 1, wherein the supporting frame (4) comprises a connecting frame (41) fixed at the bottom of the pore plate (2) and a plurality of brackets (42) installed on the connecting frame (41), the plurality of brackets (42) are in one-to-one correspondence with the plurality of through holes (21), the brackets (42) are of a spiral structure, and the diameter of the spiral gradually decreases in the extending direction towards the bottom of the water bath (1).
8. The test tube clamping assembly for the nitrogen blowing instrument as claimed in claim 1, further comprising a height adjusting device (5), wherein the height adjusting device (5) is fixed in the water bath (1), the output end of the height adjusting device is connected with the pore plate (2), and a transparent viewing port is arranged on one side wall of the water bath (1) to facilitate an operator to observe the liquid level of the test tube.
9. The test tube clamping assembly for the nitrogen blowing instrument according to claim 8, wherein the height adjusting device (5) comprises a fixed seat (51), a plurality of screws (52) and a guide post (53), the fixed seats (51) are installed on the outer side wall of the water bath (1), the two screws (52) are respectively in threaded connection with the fixed seats (51), the upper tail end of each screw (52) is rotatably connected with the bottom of the pore plate (2), a hand wheel (54) is fixed at the lower tail end of each screw, the guide posts (53) are in sliding connection with the fixed seats (51), and the upper tail ends of the guide posts (53) are fixedly connected with the pore plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121108956.5U CN215492779U (en) | 2021-05-20 | 2021-05-20 | Test tube clamping assembly for nitrogen blowing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121108956.5U CN215492779U (en) | 2021-05-20 | 2021-05-20 | Test tube clamping assembly for nitrogen blowing instrument |
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| Publication Number | Publication Date |
|---|---|
| CN215492779U true CN215492779U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121108956.5U Active CN215492779U (en) | 2021-05-20 | 2021-05-20 | Test tube clamping assembly for nitrogen blowing instrument |
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| CN (1) | CN215492779U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180232A (en) * | 2022-07-07 | 2022-10-14 | 安徽省皖北煤电集团有限责任公司 | Automatic winding device for deep hole blasting cartridge in coal mine |
| CN115993284A (en) * | 2023-03-24 | 2023-04-21 | 成都圣恩生物科技股份有限公司 | Nitrogen blowing instrument |
-
2021
- 2021-05-20 CN CN202121108956.5U patent/CN215492779U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180232A (en) * | 2022-07-07 | 2022-10-14 | 安徽省皖北煤电集团有限责任公司 | Automatic winding device for deep hole blasting cartridge in coal mine |
| CN115993284A (en) * | 2023-03-24 | 2023-04-21 | 成都圣恩生物科技股份有限公司 | Nitrogen blowing instrument |
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