Metering calibration drying box
By designing the door cover sealing structural component set and dust-proof component set in the drying box, the existing drying box metering calibration error and sample contamination are solved, and higher sealing and dust-proofing effects are achieved, and the reliability of calibration results is improved.
Patent Information
- Application Number
- CN202421335214.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The existing drying box lacks a structure that facilitates the extension of the metering circuit, resulting in errors in the metering calibration, and the ventilation side panels lack dust-proof structure, resulting in sample contamination.
A metering calibration drying box is designed, using door cover to seal structural component sets and dust-proof component sets. The door cover sealing structural component group ensures the sealing when the line passes through through the combination of the connecting cylinder, side frame, sealing cover, screws and sealing ring; the dustproof component group prevents dust from entering by installing dust filter cloth and guide grooves outside the breathable grille plate.
Effectively prevent external air and dust from entering the drying box, avoid metrological calibration errors and sample contamination, and improve the credibility of calibration results and the accuracy of experiments.
Smart Images
Figure CN222978469U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metrological detection equipment, in particular to a metrological calibration drying oven. Background Art
[0002] A drying oven is a device used in laboratories, industrial production, and other scientific and engineering applications. Its main function is to provide a controlled environment to control the temperature and humidity of samples. It is usually used for drying, heating, or insulating samples. When using a drying oven, in order to ensure its temperature accuracy, metrological calibration is often required.
[0003] Currently, the drying oven lacks a structure that facilitates the insertion of metrological lines. The probe of the metrological equipment is placed inside the drying oven, and the wire connecting the probe to the main body of the external metrological detection instrument will be stuck between the drying oven door and the drying oven, which will prevent the drying oven door from being effectively sealed. There is air flow between the inside and the outside, which will cause errors in metrological calibration. In addition, the ventilation side plate of the current drying oven lacks a dust-proof structure, and external dust and impurities are likely to pass through the ventilation side plate and enter the drying oven, resulting in sample contamination. Content of the Utility Model
[0004] In order to overcome the above technical problems, the purpose of the utility model is to provide a metrological calibration drying oven to solve the problem that the current drying oven lacks an effective metrological calibration structure proposed in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A metrological calibration drying oven, including a drying oven component group including a drying oven main body. One side of the drying oven main body is hinged with a box door cover. The side of the drying oven main body is provided with a ventilation grille plate. The box door cover is provided with a door cover sealing structure component group. The door cover sealing structure component group is used to facilitate the passage of the lines of the metrological calibration equipment. The door cover sealing structure component group includes a connecting cylinder. The side of the connecting cylinder is provided with a side frame. One side of the side frame is provided with a sealing cover member. One side of the sealing cover member is provided with a screw member. One side of the sealing cover member is provided with a sealing ring. The inside of the connecting cylinder is provided with a disc member. The inside of the disc member is provided with a cable hole. The outside of the ventilation grille plate is provided with a dust-proof component group. The dust-proof component group is used to prevent dust from passing through the ventilation grille plate and entering the drying oven main body.
[0006] Preferably: Both ends of the connecting cylinder are provided with openings. The side frame is connected to the connecting cylinder. The side frame is connected to one side of the sealing cover member through a rotating shaft.
[0007] Preferably: The sealing ring is sleeved on one side of the sealing cover member. The sealing ring is in contact with the inner wall of the connecting cylinder. The connecting cylinder and the sealing cover member are connected through a screw member.
[0008] Preferably, the disc member is connected to the inner wall of the connecting cylinder. A cable hole is provided on the disc member. There are seven groups of cable holes, and the seven groups of cable holes are evenly distributed on the disc member.
[0009] Preferably, the dust-proof component group includes a rear frame plate. A guiding groove is provided on one side of the rear frame plate. A dust-proof plate frame is arranged inside the guiding groove. A bottom seat is provided on one side of the guiding groove.
[0010] Preferably, the rear frame plate is connected to the side surface of the drying oven main body. The rear frame plate is sleeved outside the air-permeable grille plate. There are two groups of guiding grooves, and the two groups of guiding grooves are symmetrically distributed on both sides of the rear frame plate. The guiding groove is connected to the rear frame plate.
[0011] Preferably, the guiding groove is in sliding contact with the dust-proof plate frame through a sliding groove. One side of the guiding groove is connected to the bottom seat. The bottom seat is connected to the rear frame plate. The bottom of the dust-proof plate frame is in contact with the bottom seat. A dust-proof filter cloth is installed inside the dust-proof plate frame.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. The metering and calibration drying oven is provided with a door cover sealing structure component group. Currently, the drying oven lacks a structure that facilitates the insertion of metering lines. The probe of the metering device is placed inside the drying oven, and the wire connecting the probe and the main body of the external metering and detection instrument will be stuck between the drying oven door and the drying oven, which will prevent the drying oven door from being effectively sealed, and there will be air flow between the inside and the outside, which will cause errors in metering and calibration. In the corresponding designed door cover sealing structure component group, the connecting cylinder is installed in the door cover of the box. During daily use, the sealing cover member is covered on the connecting cylinder, and the screw member is connected into the sealing cover member and the connecting cylinder. The screw member is connected to the connecting cylinder through a thread, and the screw member contacts the sealing cover member through a through hole. When the screw member is tightened, the connecting cylinder and the sealing cover member can be kept sealed. The sealing ring is used to contact between the sealing cover member and the connecting cylinder to ensure the sealing performance. When metering and calibration detection is required, by removing the screw member, after removal, the sealing cover member can be rotated to be opened. After opening, the metering and calibration detection cable can pass through the cable hole and enter the drying oven main body. In this way, during the use of the metering and detection equipment, the door cover of the box can ensure effective sealing between the drying oven main body and the door cover of the box, and the cable and the cable hole are in contact, and gas cannot enter the drying oven main body through the cable hole. The design of this door cover sealing structure component group can prevent external air from entering the drying oven, avoid interfering with the experimental conditions and causing metering and calibration errors. When metering detection is not carried out, the sealing cover member can be directly covered on the connecting cylinder to still ensure the sealing performance. This structure helps to ensure the accuracy and reliability of metering and calibration detection and improves the credibility of the calibration results;
[0014] 2. This metering and calibration drying oven is provided with a dust-proof component group. Currently, there is a lack of a dust-proof structure on the ventilation side plate of the drying oven. External dust, impurities, etc. can easily pass through the ventilation side plate and enter the drying oven, resulting in sample contamination. In the corresponding designed dust-proof component group, dust will be blocked by the dust-proof filter cloth in the dust-proof plate frame. After long-term use, when there is too much dust on the filter cloth, the dust-proof plate frame can be moved upward to extract it from the guiding groove. After extraction, the filter cloth in the dust-proof plate frame can be cleaned. After processing, the dust-proof plate frame can be reinserted into the guiding groove. The bottom of the dust-proof plate frame contacts the top of the bottom seat to complete the reset installation of the dust-proof plate frame. The design of this dust-proof component group adds a dust-proof filter cloth structure to the ventilation side plate of the drying oven, which can effectively prevent external dust, impurities, etc. from entering the interior of the drying oven, thereby avoiding sample contamination and protecting the accuracy and reliability of the experiment. Description of the Drawings
[0015] Figure 1 Schematic diagram of the overall structure of the present utility model;
[0016] Figure 2 Schematic diagram of the structure of the overall side of the present utility model;
[0017] Figure 3 Schematic diagram of the overall sectional structure of the present utility model;
[0018] Figure 4 Of the present utility model Figure 3 Schematic diagram of the structure at A in;
[0019] Figure 5 Schematic diagram of the structure of the door cover sealing structure component group part of the present utility model;
[0020] Figure 6 Schematic diagram of the back of the door cover sealing structure component group part of the present utility model;
[0021] Figure 7 Schematic diagram of the structure of the dust-proof component group part of the present utility model.
[0022] In the figure: 01, drying oven component group; 11, drying oven main body; 12, box door cover; 13, ventilation grille plate; 02, door cover sealing structure component group; 21, connecting cylinder; 22, side frame; 23, sealing cover part; 24, screw part; 25, sealing ring; 26, disc part; 27, cable hole; 03, dust-proof component group; 31, rear frame plate; 32, guiding groove; 33, dust-proof plate frame; 34, bottom seat. Detailed Description of the Preferred Embodiments
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0024] Please refer to Figure 1-7 , an embodiment provided by the present utility model: A metering and calibrating drying oven, including a drying oven component group 01 including a drying oven main body 11, a door cover 12 is hinged on one side of the drying oven main body 11, a ventilation grille plate 13 is provided on the side of the drying oven main body 11, and a door cover sealing structure component group 02 is provided on the door cover 12. The door cover sealing structure component group 02 is used to facilitate the passage of the lines of the metering and calibrating equipment. The door cover sealing structure component group 02 includes a connecting cylinder 21, a side frame 22 is provided on the side of the connecting cylinder 21, a sealing cover member 23 is provided on one side of the side frame 22, a screw member 24 is provided on one side of the sealing cover member 23, a sealing ring 25 is provided on one side of the sealing cover member 23, a disc member 26 is provided inside the connecting cylinder 21, and a cable hole 27 is provided inside the disc member 26; a dust-proof component group 03 is provided outside the ventilation grille plate 13. The dust-proof component group 03 is used to prevent dust from passing through the ventilation grille plate 13 and entering the drying oven main body 11.
[0025] Both ends of the connecting cylinder 21 are provided with openings. The side frame 22 is connected to the connecting cylinder 21. The side frame 22 is connected to one side of the sealing cover member 23 through a rotating shaft. The connecting cylinder 21 is connected to the door cover 12 through a through hole.
[0026] The sealing ring 25 is sleeved on one side of the sealing cover member 23. The sealing ring 25 contacts the inner wall of the connecting cylinder 21. The connecting cylinder 21 and the sealing cover member 23 are connected by the screw member 24.
[0027] The disc member 26 is connected to the inner wall of the connecting cylinder 21. Seven cable holes 27 are provided on the disc member 26, and the seven cable holes 27 are evenly distributed on the disc member 26.
[0028] The dust-proof component group 03 includes a rear frame plate 31. A guiding groove 32 is provided on one side of the rear frame plate 31. A dust-proof plate frame 33 is provided inside the guiding groove 32. A bottom seat 34 is provided on one side of the guiding groove 32.
[0029] The rear frame plate 31 is connected to the side of the drying oven main body 11. The rear frame plate 31 is sleeved outside the ventilation grille plate 13. Two guiding grooves 32 are provided, and the two guiding grooves 32 are symmetrically distributed on both sides of the rear frame plate 31. The guiding groove 32 is connected to the rear frame plate 31.
[0030] The guiding groove 32 is in sliding contact with the sliding groove and the dust-proof plate frame 33. One side of the guiding groove 32 is connected to the bottom seat 34, the bottom seat 34 is connected to the rear frame plate 31, the bottom of the dust-proof plate frame 33 contacts the bottom seat 34, and a dust-proof filter cloth is installed inside the dust-proof plate frame 33.
[0031] Working principle: The current drying oven lacks a structure that facilitates the insertion of the metering line. The probe of the metering device is placed inside the drying oven, and the wire connecting the probe to the main body of the external metering and detection instrument will be stuck between the drying oven door and the drying oven, which will prevent the drying oven door from being effectively sealed. There is air flow between the inside and the outside, which will cause errors in metering calibration. In the designed door cover sealing structure component group 02, the connecting cylinder 21 is installed in the oven door cover 12. In daily use, the sealing cover member 23 covers the connecting cylinder 21, and is connected to the sealing cover member 23 and the connecting cylinder 21 through the screw member 24. The screw member 24 is connected to the connecting cylinder 21 through threads, and the screw member 24 contacts the sealing cover member 23 through the through hole. When the screw member 24 is tightened, the connecting cylinder 21 and the sealing cover member 23 can be kept sealed. The sealing ring 25 is used to contact between the sealing cover member 23 and the connecting cylinder 21 to ensure the sealing performance. When metering calibration detection is required, the screw member 24 is removed. After removal, the sealing cover member 23 can be rotated to be opened. After opening, the metering calibration detection cable can pass through the cable hole 27 and enter the drying oven main body 11. In this way, when using the metering detection equipment, the oven door cover 12 can ensure effective sealing between the drying oven main body 11 and the oven door cover 12, and the cable and the cable hole 27 are in contact. Gas cannot enter the drying oven main body 11 through the cable hole 27. The design of this door cover sealing structure component group 02 can prevent external air from entering the drying oven, avoid interfering with the experimental conditions and causing metering calibration errors. When metering detection is not carried out, the sealing cover member 23 can be directly covered on the connecting cylinder 21 to still ensure the sealing performance. This structure helps to ensure the accuracy and reliability of metering calibration detection and improves the credibility of the calibration results. The current drying oven lacks a dust-proof structure on the ventilation side plate. External dust, impurities, etc. are likely to pass through the ventilation side plate and enter the drying oven, resulting in sample contamination. In the designed dust-proof component group 03, the dust will be blocked by the dust-proof filter cloth in the dust-proof plate frame 33. After long-term use, when there is too much dust on the filter cloth, the dust-proof plate frame 33 can be moved upward to be pulled out of the guiding groove 32. After being pulled out, the filter cloth in the dust-proof plate frame 33 can be cleaned. After treatment, the dust-proof plate frame 33 can be reinserted into the guiding groove 32. The bottom of the dust-proof plate frame 33 contacts the top of the bottom seat 34 to complete the reset installation of the dust-proof plate frame 33. The design of this dust-proof component group 03 adds a dust-proof filter cloth structure to the ventilation side plate of the drying oven, which can effectively prevent external dust, impurities, etc. from entering the drying oven, thus avoiding sample contamination and protecting the accuracy and reliability of the experiment.
[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.
Claims
1. A metrology calibration drying oven, comprising a drying oven component group (01) including a drying oven body (11), a door cover (12) being hingedly connected to one side of the drying oven body (11), and a ventilation grille plate (13) being arranged on the side of the drying oven body (11), characterized in that: The box door cover (12) is provided with a door cover sealing structural component group (02), and the door cover sealing structural component group (02) is used to facilitate the passage of the lines of the measurement and calibration equipment. The door cover sealing structural component group (02) includes a connecting tube (21), a side frame (22) is provided on the side of the connecting tube (21), a sealing cover (23) is provided on one side of the side frame (22), a screw (24) is provided on one side of the sealing cover (23), a sealing ring (25) is provided on one side of the sealing cover (23), a disk (26) is provided inside the connecting tube (21), and a cable hole (27) is provided inside the disk (26); A dustproof component group (03) is arranged outside the air-permeable grid plate (13), and the dustproof component group (03) is used to prevent dust from passing through the air-permeable grid plate (13) and entering the drying box body (11).
2. A measurement and calibration drying oven according to claim 1, characterized in that: Openings are provided at both ends of the connecting tube (21), the side frame (22) is connected to the connecting tube (21), and the side frame (22) is connected via a rotating shaft and one side of a sealing cover (23).
3. A measurement and calibration drying oven according to claim 1, characterized in that: The sealing ring (25) is sleeved on one side of the sealing cover (23), and the sealing ring (25) contacts the inner wall of the connecting tube (21). The connecting tube (21) and the sealing cover (23) are connected by a screw (24).
4. A measurement and calibration drying oven according to claim 1, characterized in that: The disk (26) is connected to the inner wall of the connecting tube (21), and a cable hole (27) is provided on the disk (26). Seven groups of cable holes (27) are provided, and the seven groups of cable holes (27) are evenly distributed on the disk (26).
5. A measurement and calibration drying oven according to claim 1, characterized in that: The dustproof component group (03) comprises a rear frame plate (31), one side of the rear frame plate (31) is provided with a guide groove (32), a dustproof plate frame (33) is provided inside the guide groove (32), and one side of the guide groove (32) is provided with a bottom seat (34).
6. A measurement and calibration drying oven according to claim 5, characterized in that: The rear frame plate (31) is connected to the side of the drying box body (11), and the rear frame plate (31) is sleeved on the outside of the ventilation grille plate (13). Two groups of guide grooves (32) are provided, and the two groups of guide grooves (32) are symmetrically distributed on both sides of the rear frame plate (31), and the guide grooves (32) are connected to the rear frame plate (31).
7. A measurement and calibration drying oven according to claim 5, characterized in that: The guide groove (32) is in sliding contact with the dustproof plate frame (33) through a sliding groove, one side of the guide groove (32) is connected to a bottom seat (34), the bottom seat (34) is connected to a rear frame plate (31), the bottom of the dustproof plate frame (33) is in contact with the bottom seat (34), and a dustproof filter cloth is installed inside the dustproof plate frame (33).