Drying box for burettes

Abstract

The utility model discloses a drying box for burettes, and belongs to the technical field of drying boxes. A drying box for burettes comprises a drying box body, two embedded plates are fixed to the two sides of the inner wall of the drying box body, a containing plate is arranged between every two adjacent embedded plates, a plurality of open holes are evenly formed in the surface of each containing plate in a penetrating mode, and a burette body is arranged between every two adjacent open holes in a penetrating and inserting mode. Two supporting seats are fixed on the top surfaces of one group of placing plates and positioned on the two sides of the hole at the adjacent position, and the surfaces of the supporting seats are attached to the surface of the burette body at the adjacent position. According to the burette fixing device, a plurality of burette bodies can be synchronously and quickly fixed, so that the time for fixedly placing the burette bodies is shortened, and the use convenience of the burette fixing device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of drying boxes, and in particular relates to a drying box for a burette. Background Art

[0002] The burette is the main measuring instrument used in titration analysis. It can be divided into an acid burette, an alkaline burette, and a polytetrafluoroethylene acid-base universal burette. The acid burette has a glass piston at the lower end, which can be loaded with acidic or oxidizing titrants. In actual use, the burette often needs to be dried in a drying oven.

[0003] The prior art burette drying oven needs to be supported and fixed by a corresponding placement rack when in use. Most of the conventional placement racks can only fix the burettes step by step, but cannot simultaneously fix multiple burettes placed in the placement rack, which makes the use of the drying oven inconvenient and not conducive to use.

[0004] Therefore, a drying box for burettes is needed to solve the problem that most of the conventional placement racks in the prior art can only fix the burettes step by step, but cannot simultaneously fix and limit multiple burettes placed inside the placement rack. Utility Model Content

[0005] The utility model aims to provide a drying box for a burette to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A drying box for a burette, comprising a drying box body, two inner embedded plates are fixed on both sides of the inner wall of the drying box body, a placement plate is arranged at the middle position of the two adjacent inner embedded plates, a plurality of openings are evenly penetrated on the surface of the placement plate, a burette body is inserted through the middle position of the two adjacent openings, two support seats are fixed on the top surface of one group of the placement plates at the positions on both sides of the openings at the adjacent positions, the surface of the support seat is in contact with the surface of the burette body at the adjacent position, a limiting strip is arranged on the top of the placement plate, and fixed strips are fixed on the surfaces on both sides of the limiting strips. A block, the surface of the top of the fixed block is rotatably connected with a rotating shaft, the bottom fixed sleeve of the outer circumference of the rotating shaft is provided with a clamping plate, the surface of the bottom of the clamping plate fits with the surface of the burette body at an adjacent position, a rod groove is opened at the middle position of the top surface of the placement plate, the inside of the rod groove is rotatably connected with a first threaded rod, one end of the first threaded rod passes through the placement plate and extends to the outside of the placement plate, the outer circumference of the first threaded rod is located at the surface of the inner part of the rod groove and is threadedly connected with a first threaded sleeve, the top of the first threaded sleeve is hinged with a connecting rod, and the top of the connecting rod is hinged to the surface of the bottom of the limiting strip.

[0008] It should be noted in the scheme that a limiting groove is provided on the surface of the embedded plate close to the placement plate, and a limiting strip is inserted through the interior of the limiting groove. The limiting strip passes through the adjacent position limiting groove on the side close to the adjacent position placement plate and is fixed to the surface of the adjacent position placement plate.

[0009] It is further worth mentioning that a rack is arranged on the top of the limiting strip, a plurality of tooth blocks are evenly fixed on the surfaces on both sides of the rack, a circular gear is fixed on the top of the outer circumference of the rotating shaft, and the rack and the plurality of circular gears are meshingly connected.

[0010] It should be further explained that an opening is provided on the surface of the limiting bar at the bottom of the rack, and a second threaded rod is rotatably connected to the inside of the opening, and one end of the second threaded rod passes through the limiting bar and extends out of the limiting bar.

[0011] Preferably, a second threaded sleeve is threadedly connected to the outer circumferential surface of the second threaded rod located inside the opening, and the top of the second threaded sleeve passes through the opening and is fixed to the surface of the bottom of the rack.

[0012] Preferably, the inner cavity of the limiting groove is T-shaped, the surface of the limiting strip embedded in the inner part of the limiting groove at the adjacent position is T-shaped, and the surface of the limiting strip fits with the inner cavity surface of the limiting groove.

[0013] Compared with the prior art, the drying box for burette provided by the utility model has at least the following beneficial effects:

[0014] (1) The burette body is inserted from two openings in the same vertical direction of the two placement plates, and after the insertion is completed, the first threaded rod is rotated to allow the limiting strip to move in the vertical direction, so that the burette body can be limited under the clamping action of the support seat and the adjacent position clamping plate on the burette body, so that multiple burette bodies can be fixed synchronously and quickly, thereby shortening the time spent on fixing and placing the burette body, thereby improving the convenience of use of the device.

[0015] (2) By rotating the second threaded rod, the rack can move in the horizontal direction, so that the angle of the clamping plate can be adjusted under the meshing action between the rack and the circular gear, so that the angles of multiple clamping plates can be quickly adjusted to facilitate the burette body to pass through the two openings, thereby further improving the convenience of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model in the front view direction;

[0017] Figure 2 For the utility model Figure 1 A schematic diagram of the structure enlargement at the center A;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of a local structure of the utility model;

[0019] Figure 4 For the utility model Figure 1 A schematic diagram of the structure enlarged at B in the middle;

[0020] Figure 5 It is a three-dimensional structural cross-sectional schematic diagram of a local structure of the utility model;

[0021] Figure 6 For the utility model Figure 1 Enlarged schematic diagram of the structure at C in the middle.

[0022] In the figure:

[0023] 1. Drying box body; 2. Inner plate; 3. Placement plate; 4. Opening; 5. Burette body; 6. Limiting groove; 7. Limiting strip; 8. Support seat; 9. Clamp; 10. Fixed block; 11. Rotating shaft; 12. Circular gear; 13. Rack; 14. Rod groove; 15. First threaded rod; 16. First threaded sleeve; 17. Connecting rod; 18. Opening; 19. Second threaded rod; 20. Second threaded sleeve. DETAILED DESCRIPTION

[0024] See also Figure 1-6The utility model provides a drying box for a burette, comprising a drying box body 1, two inner embedded plates 2 are fixed on both sides of the inner wall of the drying box body 1, a placing plate 3 is arranged at the middle position of the two adjacent inner embedded plates 2, a plurality of openings 4 are evenly penetrated on the surface of the placing plate 3, a burette body 5 is penetrated and inserted at the middle position of the two adjacent openings 4, two supporting seats 8 are fixed on the top surface of one group of placing plates 3 located on both sides of the openings 4 at adjacent positions, the surface of the supporting seats 8 is in contact with the surface of the burette body 5 at adjacent positions, a limiting strip 7 is arranged on the top of the placing plate 3, fixed blocks 10 are fixed on the surfaces on both sides of the limiting strip 7, a rotating shaft 11 is rotatably connected to the surface of the top of the fixed block 10, a clamping plate 9 is fixedly sleeved on the bottom of the outer circumference of the rotating shaft 11, the surface of the bottom of the clamping plate 9 is in contact with the surface of the burette body 5 at adjacent positions, the middle of the top surface of the placing plate 3 A rod groove 14 is opened at the intermediate position, and a first threaded rod 15 is rotatably connected inside the rod groove 14. One end of the first threaded rod 15 passes through the placement plate 3 and extends out of the placement plate 3. The outer circumference of the first threaded rod 15 is located at the surface of the inner part of the rod groove 14 and is threadedly connected to a first threaded sleeve 16. The top of the first threaded sleeve 16 is hinged with a connecting rod 17. The top of the connecting rod 17 is hinged to the surface of the bottom of the limiting strip 7. The burette body 5 is inserted from the two openings 4 in the same vertical direction of the two placement plates 3, and the first threaded rod 15 is rotated after the insertion is completed so that the limiting strip 7 can move in the vertical direction, so that the burette body 5 can be limited under the clamping action of the support seat 8 and the adjacent position clamping plate 9 on the burette body 5, so that multiple burette bodies 5 can be fixed synchronously and quickly, thereby shortening the time spent on fixing the burette body 5.

[0025] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that a limiting groove 6 is provided on the surface of the embedded plate 2 close to the placement plate 3, and a limiting strip 7 is inserted through the inside of the limiting groove 6. The limiting strip 7 passes through the adjacent position limiting groove 6 on the side close to the adjacent position placement plate 3 and is fixed to the surface of the adjacent position placement plate 3. Since the limiting strip 7 can only slide in the inner cavity of the adjacent position limiting groove 6, it can limit the movement trajectory of the placement plate 3, making the placement plate 3 move more smoothly in the horizontal direction.

[0026] Further as Figure 3 and Figure 4As shown, it is worth explaining in detail that a rack 13 is provided on the top of the limiting bar 7, and a plurality of tooth blocks are evenly fixed on the surfaces on both sides of the rack 13. A circular gear 12 is fixedly sleeved on the top of the outer circumference of the rotating shaft 11, and the rack 13 and the plurality of circular gears 12 are meshingly connected. Since the rack 13 can mesh with the circular gear 12 during the movement in the horizontal direction, the rotating shaft 11 can be rotated to adjust the angle of the splint 9.

[0027] Further Figure 3 As shown, it is worth explaining in detail that an opening 18 is provided on the surface of the limiting bar 7 at the bottom of the rack 13, and a second threaded rod 19 is rotatably connected inside the opening 18. One end of the second threaded rod 19 passes through the limiting bar 7 and extends out of the limiting bar 7. The outer circumferential surface of the second threaded rod 19 located inside the opening 18 is threadedly connected with a second threaded sleeve 20. The top of the second threaded sleeve 20 passes through the opening 18 and is fixed to the surface of the bottom of the rack 13. By rotating the second threaded rod 19, the inner cavity of the opening 18 can play a role of resisting and limiting the second threaded sleeve 20, so that the second threaded sleeve 20 can drive the rack 13 to move in the horizontal direction under the cooperation between the internal thread structure of its inner wall and the external thread structure of the outer circumferential surface of the second threaded rod 19, and the length of the inner cavity of the opening 18 can limit the movement amplitude of the rack 13, thereby ensuring that the rack 13 is always arranged in meshing connection with the multiple circular gears 12.

[0028] This solution has the following working process: in actual use, when the user needs to stably place the burette body 5 in the middle position of the two openings 4, first slide the placement plate 3 so that one end of the two placement plates 3 can extend out of the drying box body 1, so that the burette body 5 can be passed through the two openings 4 in turn from the top of the two placement plates 3 and the local position of the surface of the burette body 5 can be placed on the top of the two adjacent support seats 8, and then the second threaded rod 19 is rotated. Since the inner cavity of the opening 18 can play a role of resisting and limiting the second threaded sleeve 20, the second threaded sleeve 20 can drive the rack 13 to move in the horizontal direction under the cooperation between the internal thread structure of its inner wall and the external thread structure of the outer peripheral surface of the second threaded rod 19. Since the rack 13 can mesh with the circular gear 12 during the horizontal movement, the rotating shaft 11 can The first threaded rod 15 is then rotated to adjust the angle of the clamping plate 9, so that the clamping plate 9 can move to the position of the top of the burette body 5, and then the first threaded rod 15 is rotated. Since the external thread structures on both sides of the outer circumference of the first threaded rod 15 are arranged in opposite directions and the inner cavity of the rod groove 14 can play a role of resisting and limiting the first threaded sleeve 16, the two first threaded sleeves 16 can move under the cooperation between the internal thread structure on the inner wall and the corresponding external thread structure on the outer circumference of the first threaded rod 15, so that the spacing between the two first threaded sleeves 16 can be changed, so that the angle of the connecting rod 17 can be changed, so that the limiting strip 7 can drive the clamping plate 9 to move in the vertical direction, so that the burette body 5 at the adjacent position can be fixed under the clamping limit between the clamping plate 9 and the support seat 8, and then the sliding placement plate 3 can be driven to drive the burette body 5 to slide into the interior of the drying box body 1.

[0029] According to the above working process, it can be known that: the burette body 5 is inserted from the two openings 4 in the same vertical direction of the two placement plates 3, and after the insertion is completed, the first threaded rod 15 is rotated to allow the limiting strip 7 to move in the vertical direction, so that the burette body 5 can be limited under the clamping action of the support seat 8 and the adjacent position clamping plate 9 on the burette body 5, so that multiple burette bodies 5 can be fixed synchronously and quickly, thereby shortening the time spent on fixing and placing the burette body 5, thereby improving the convenience of use of the device, and by rotating the second threaded rod 19, the rack 13 can move in the horizontal direction, so that the angle of the clamping plate 9 can be adjusted under the meshing action between the rack 13 and the circular gear 12, so that the angle of multiple clamping plates 9 can be quickly adjusted to facilitate the burette body 5 to pass through the two openings 4, thereby further improving the convenience of use of the device.

[0030] Further as Figure 4As shown, it is worth explaining in detail that the inner cavity of the limiting groove 6 is set in a T shape, the limiting strip 7 is embedded in the adjacent position, and the surface of the inner part of the limiting groove 6 is set in a T shape. The surface of the limiting strip 7 is in contact with the inner cavity surface of the limiting groove 6. Due to the shape setting of the inner cavity of the limiting groove 6 and the limiting strip 7, the placement plate 3 can be prevented from shaking in the horizontal direction to improve the sliding stability of the placement plate 3.

[0031] In summary: the burette body 5 is inserted from the two openings 4 in the same vertical direction of the two placement plates 3, and after the insertion is completed, the first threaded rod 15 is rotated to allow the limiting strip 7 to move in the vertical direction, so that the burette body 5 can be limited under the clamping action of the support seat 8 and the adjacent position clamping plate 9 on the burette body 5, so that multiple burette bodies 5 can be fixed synchronously and quickly, thereby shortening the time spent on fixing the burette body 5, thereby improving the convenience of use of the device, and by rotating the second threaded rod 19, the rack 13 can move in the horizontal direction, so that the angle of the clamping plate 9 can be adjusted under the meshing action between the rack 13 and the circular gear 12, so that the angles of multiple clamping plates 9 can be quickly adjusted to facilitate the burette body 5 to pass through the two openings 4, thereby further improving the convenience of use of the device, and due to the shape setting of the inner cavity of the limiting groove 6 and the limiting strip 7, it is possible to avoid the placement plate 3 from shaking in the horizontal direction to improve the sliding stability of the placement plate 3.

Claims

1. A drying oven for a burette, comprising a drying oven body (1), characterized in that: Two inner panels (2) are fixed on both sides of the inner wall of the drying box body (1); a placement plate (3) is arranged at the middle position of the two adjacent inner panels (2); a plurality of openings (4) are evenly penetrated on the surface of the placement plate (3); a burette body (5) is inserted through the middle position of the two adjacent openings (4); two support seats (8) are fixed on the top surface of one group of the placement plates (3) at the positions on both sides of the adjacent openings (4); the surface of the support seat (8) is in contact with the surface of the adjacent burette body (5); a limiting strip (7) is arranged on the top of the placement plate (3); fixed blocks (10) are fixed on the surfaces on both sides of the limiting strip (7); the top surface of the fixed block (10) is rotatably connected to the surface of the fixing block (10). A rotating shaft (11) is connected, and a clamping plate (9) is fixedly sleeved at the bottom of the outer peripheral surface of the rotating shaft (11), and the surface of the bottom of the clamping plate (9) is in contact with the surface of the burette body (5) at an adjacent position. A rod groove (14) is provided at the middle position of the top surface of the placement plate (3), and a first threaded rod (15) is rotatably connected inside the rod groove (14), and one end of the first threaded rod (15) passes through the placement plate (3) and extends outside the placement plate (3). The outer peripheral surface of the first threaded rod (15) is located in the inner part of the rod groove (14) and is threadedly connected to a first threaded sleeve (16), and the top of the first threaded sleeve (16) is hingedly connected to a connecting rod (17), and the top of the connecting rod (17) is hingedly connected to the surface of the bottom of the limiting strip (7).

2. A drying oven for a burette according to claim 1, characterized in that: A limiting groove (6) is provided on the surface of the inner panel (2) close to the placement panel (3), a limiting strip (7) is inserted through the inside of the limiting groove (6), and the limiting strip (7) passes through the adjacent position limiting groove (6) on the side close to the adjacent position placement panel (3) and is fixed to the surface of the adjacent position placement panel (3).

3. A drying oven for a burette according to claim 1, characterized in that: A rack (13) is arranged at the top of the limiting bar (7), and a plurality of tooth blocks are evenly fixed on the surfaces of both sides of the rack (13). A circular gear (12) is fixedly sleeved at the top of the outer peripheral surface of the rotating shaft (11), and the rack (13) and the plurality of circular gears (12) are arranged in meshing connection.

4. A drying box for a burette according to claim 3, characterized in that: An opening (18) is provided on the surface of the limiting bar (7) at the bottom of the rack (13), and a second threaded rod (19) is rotatably connected inside the opening (18), and one end of the second threaded rod (19) passes through the limiting bar (7) and extends outside the limiting bar (7).

5. A drying box for a burette according to claim 4, characterized in that: The outer circumferential surface of the second threaded rod (19) located inside the opening (18) is threadedly connected to a second threaded sleeve (20), and the top of the second threaded sleeve (20) passes through the opening (18) and is fixed to the surface of the bottom of the rack (13).

6. A drying oven for a burette according to claim 2, characterized in that: The inner cavity of the limiting groove (6) is arranged in a T-shape, the surface of the limiting strip (7) embedded in the inner part of the limiting groove (6) at the adjacent position is arranged in a T-shape, and the surface of the limiting strip (7) is in contact with the inner cavity surface of the limiting groove (6).

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