Oxygen bottle combustion device convenient to operate

Abstract

The utility model relates to the technical field of chemical analysis equipment, and discloses an oxygen bottle combustion device convenient to operate, which comprises a combustion container, an opening is arranged at the top of the combustion container, a bottle cap is in threaded connection with the outside of the opening, a feeding assembly is arranged at the top of the bottle cap, and the feeding assembly comprises a mounting groove. The mounting groove is formed in the surface of the bottle cap, a feeding opening is formed in the bottom of the mounting groove, a sliding plate is slidably connected to the interior of the mounting groove, two sets of symmetrically-arranged guide rods are fixedly connected to the inner wall of the mounting groove, and the guide rods penetrate through and are slidably connected to the side wall of the sliding plate. According to the dust-free filter paper feeding device, the sliding plate and the reset spring are used in cooperation, so that the feeding opening is opened and closed easily, the friction force of the surface of the sliding plate is further improved due to the fact that the protruding strips are additionally arranged, and an operator can move the sliding plate more easily, plug a fire source and accurately ignite dust-free filter paper.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical analysis equipment, in particular to an oxygen flask combustion device which is convenient to operate. Background Technique

[0002] In the field of chemical analysis, in order to determine the contents of elements such as sulfur, halogen, phosphorus, and boron in organic compounds, an oxygen flask combustion device is often required. The specific operation is as follows: in a combustion flask filled with oxygen, combustion is carried out under the catalytic action of a platinum wire, so that the organic compound is quickly decomposed into water-soluble inorganic ionic products. The local temperature during the combustion process reaches about 1000-1200 °C. After the combustion products are inhaled into the absorption liquid, appropriate analytical methods are used to check or determine the content of the corresponding elements.

[0003] After retrieval, the Chinese patent publication number: CN207232111U, discloses an oxygen flask combustion device with convenient operation. When the device is used, the test sample is accurately weighed and placed in the center of an ashless filter paper. After folding, it is fixed on the platinum wire, and the bottle stopper is installed at the opening to achieve sealing. The valves of the air inlet pipe and the air outlet pipe are opened, oxygen is introduced through the air inlet pipe for a period of time, and air is discharged from the air outlet pipe. After the oxygen supply is ended, the two valves are immediately closed. The micro motor drives the screw to rotate, so that the lifting block rises to the highest position. The valve of the air outlet pipe is quickly opened, the absorption liquid is added to the combustion container from the air outlet pipe, and the fire source is inserted into the air outlet pipe to ignite the filter paper, and then the valve is closed. After the combustion is completed, it is fully shaken to make the generated smoke completely inhaled into the absorption liquid, and then detected. The utility model is convenient to operate, can make the test data more accurate, and is suitable for popularization.

[0004] The above oxygen flask combustion device has certain defects during use. There is a deviation in the position where the air outlet pipe is inserted into the filter paper. When inserting the fire source, the filter paper cannot be accurately ignited, which brings inconvenience to the oxygen flask combustion device. Therefore, an oxygen flask combustion device which is convenient to operate is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides an oxygen flask combustion device which is convenient to operate, aiming to improve the problem that there is a deviation in the position where the air outlet pipe is inserted into the filter paper in the prior art, and when inserting the fire source, the filter paper cannot be accurately ignited, which brings inconvenience to the oxygen flask combustion device.

[0006] To achieve the above object, the utility model adopts the following technical solutions: An oxygen bottle combustion device convenient for operation, including a combustion container, an opening is provided at the top of the combustion container, the outside of the opening is threadedly connected with a bottle cap, and an input component is provided on the top of the bottle cap. The input component includes an installation groove, the installation groove is opened on the surface of the bottle cap, an input port is opened at the bottom of the installation groove, a sliding plate is slidably connected inside the installation groove, and two groups of symmetrically arranged guide rods are fixedly connected to the inner wall of the installation groove. The guide rod penetrates and is slidably connected to the side wall of the sliding plate.

[0007] As a further description of the above technical solution:

[0008] A placement component is provided on the bottle cap. The placement component includes a positioning rod and a threaded rod. Both the positioning rod and the threaded rod penetrate and are slidably connected to the surface of the bottle cap.

[0009] As a further description of the above technical solution:

[0010] A return spring is sleeved on the outer wall of the guide rod, and the return spring is elastically connected between the sliding plate and the inner wall of the installation groove.

[0011] As a further description of the above technical solution:

[0012] A sealing pad is provided on the bottom surface of the sliding plate, and multiple groups of convex strips distributed in an array are fixedly connected to the surface of the sliding plate.

[0013] As a further description of the above technical solution:

[0014] Three groups of the positioning rods are provided, and convex blocks are respectively rotatably connected to both ends of the three groups of positioning rods and the threaded rod.

[0015] As a further description of the above technical solution:

[0016] A platinum wire is fixedly connected to the bottom surface of the convex block, and a counterweight block is fixedly connected to the bottom surface of the platinum wire.

[0017] As a further description of the above technical solution:

[0018] A runner is threadedly connected to the outer wall of the threaded rod, and the runner is rotatably connected to the surface of the bottle cap.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, through the combined use of the sliding plate and the return spring, the opening and closing of the input port become extremely easy. The addition of the convex strips further increases the friction force on the surface of the sliding plate, enabling the operator to move the sliding plate more easily, insert the fire source, and accurately light the dust-free filter paper.

[0021] 2. In the present utility model, by rotating the rotating wheel, the height of the threaded rod can be quickly adjusted, and then the positions of the platinum wire and the dust-free filter paper can be adjusted, so that the dust-free filter paper can be stably fixed under the bottle cap, facilitating the reception of the fire source. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 1 is a schematic diagram of the overall structure of an oxygen flask combustion device that is easy to operate proposed by the present utility model;

[0023] Figure 2 FIG. 2 is a schematic diagram of the structure of the input component of an oxygen flask combustion device that is easy to operate proposed by the present utility model;

[0024] Figure 3 FIG. 3 is a schematic diagram of the structure of the placement component of an oxygen flask combustion device that is easy to operate proposed by the present utility model.

[0025] LEGEND DESCRIPTION:

[0026] 1. Combustion container; 11. Inlet pipe; 12. Outlet pipe; 13. Valve; 2. Bottle cap; 3. Input component; 31. Installation groove; 32. Input port; 33. Slide plate; 34. Guide rod; 35. Return spring; 36. Sealing gasket; 37. Ridge; 4. Placement component; 41. Positioning rod; 42. Threaded rod; 43. Protrusion; 44. Platinum wire; 45. Counterweight; 46. Rotating wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Referring to Figure 1 , an embodiment provided by the present utility model: An oxygen flask combustion device that is easy to operate includes a combustion container 1. An inlet pipe 11 is fixedly connected to the top of the combustion container 1, and an outlet pipe 12 is fixedly connected to the side wall of the combustion container 1. Valves 13 are provided on the outer walls of the inlet pipe 11 and the outlet pipe 12. The combustion container 1 is a container for placing a combustion sample and performing a combustion reaction. The inlet pipe 11 and the outlet pipe 12 are used to control the inlet and outlet of gas and absorbent liquid. An opening is provided at the top of the combustion container 1, and a bottle cap 2 is threadedly connected to the outside of the opening. The bottle cap 2 is a covering member located at the top opening of the combustion container 1, and the sealing and fixing are ensured by means of threaded connection.

[0029] Referring to Figure 1 - Figure 2, an input component 3 is provided at the top of the bottle cap 2. The input component 3 includes an installation groove 31 which is opened on the surface of the bottle cap 2. An input port 32 is opened at the bottom of the installation groove 31. The installation groove 31 is a groove opened on the surface of the bottle cap 2, used for installing a slide plate 33 and providing a track for the slide plate 33 to move. The input port 32 is located at the center of the bottle cap 2 and is used for putting a fire source into the interior of the combustion container 1 so that the fire source accurately falls onto the dust-free filter paper. A slide plate 33 is slidably connected inside the installation groove 31. The slide plate 33 is a moving part installed inside the installation groove 31, and the input port 32 is opened and closed by moving. Two groups of symmetrically arranged guide rods 34 are fixedly connected to the inner wall of the installation groove 31. The guide rods 34 penetrate and are slidably connected to the side wall of the slide plate 33. The guide rods 34 are used to guide the stable movement of the slide plate 33 inside the installation groove 31. A return spring 35 is sleeved on the outer wall of the guide rod 34. The return spring 35 is elastically connected between the slide plate 33 and the inner wall of the installation groove 31. The return spring 35 is used to provide elastic support for the slide plate 33 so that the slide plate 33 is located above the input port 32 and blocks the input port 32 when not under external force. A sealing pad 36 is provided on the bottom surface of the slide plate 33. The sealing pad 36 is used to improve the sealing performance of the slide plate 33 to the input port 32. A plurality of groups of convex strips 37 distributed in an array are fixedly connected to the surface of the slide plate 33. The convex strips 37 are used to increase the friction force on the surface of the slide plate 33, thereby facilitating the manual movement of the slide plate 33 to open the input port 32.

[0030] Refer to Figure 1 , Figure 3 , a placement component 4 is provided on the bottle cap 2. The placement component 4 includes a positioning rod 41 and a threaded rod 42. The positioning rod 41 and the threaded rod 42 both penetrate and are slidably connected to the surface of the bottle cap 2. There are three groups of positioning rods 41. Both ends of the three groups of positioning rods 41 and the threaded rod 42 are respectively rotatably connected to a convex block 43. The convex block 43 is used to limit the maximum moving distance of the positioning rod 41 and the threaded rod 42. A platinum wire 44 is fixedly connected to the bottom surface of the convex block 43. The convex blocks 43 at the upper end are fixed together by a cross plate, so that the threaded rod 42 and the three groups of positioning rods 41 move up and down synchronously. There are four groups of platinum wires 44, which are respectively located at the bottoms of the four groups of convex blocks 43 at the lower end, and the four groups of platinum wires 44 are arranged in a conical shape. A counterweight 45 is fixedly connected to the bottom surface of the platinum wire 44. The counterweight 45 is used to connect the bottom ends of the platinum wires 44 together and provide a certain weight to make the placement component 4 more stable. During use, the dust-free filter paper is wound into a conical shape, the weighed test sample is put into the dust-free filter paper, and the dust-free filter paper is placed between the four groups of platinum wires 44 so that the opening of the dust-free filter paper is located directly below the bottle cap 2 for receiving the fire source. A runner 46 is threadedly connected to the outer wall of the threaded rod 42. The runner 46 is rotatably connected to the surface of the bottle cap 2. The runner 46 is used to adjust the height of the threaded rod 42.

[0031] Working principle: When using this device, first, roll the dust-free filter paper into a conical shape, place the weighed test sample into the dust-free filter paper, and place the dust-free filter paper between the four groups of platinum wires 44, such that the opening of the dust-free filter paper is directly below the bottle cap 2. Then, by rotating the runner 46, adjust the height of the threaded rod 42, so that the convex block 43 and the platinum wires 44 rise synchronously until the dust-free filter paper is fixed below the bottle cap 2. Subsequently, pass oxygen into the combustion container 1 through the air inlet pipe 11 to ensure the oxygen supply during the combustion process.

[0032] When the inside of the combustion container 1 is ready, the operator manually presses the slide plate 33, causing it to slide downward along the guide rod 34 inside the installation groove 31. At this time, the return spring 35 is compressed and the input port 32 is opened. The operator can use a fire source and, through the input port 32, throw the fire source onto the dust-free filter paper to ignite the dust-free filter paper and the test sample.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An oxygen flask combustion device convenient for operation, comprising a combustion container (1), characterized in that: An opening is provided at the top of the combustion container (1), and a bottle cap (2) is threadedly connected to the outside of the opening. An input component (3) is provided at the top of the bottle cap (2). The input component (3) includes a mounting groove (31) which is opened on the surface of the bottle cap (2). An input port (32) is opened at the bottom of the mounting groove (31). A sliding plate (33) is slidably connected inside the mounting groove (31). Two groups of symmetrically arranged guide rods (34) are fixedly connected to the inner wall of the mounting groove (31), and the guide rods (34) penetrate and are slidably connected to the side wall of the sliding plate (33).

2. The oxygen flask combustion device according to claim 1, which is easy to operate, is characterized in that: A placement component (4) is provided on the bottle cap (2). The placement component (4) includes a positioning rod (41) and a threaded rod (42). Both the positioning rod (41) and the threaded rod (42) penetrate and are slidably connected to the surface of the bottle cap (2).

3. The oxygen flask combustion device according to claim 1, which is easy to operate, is characterized in that: A return spring (35) is sleeved on the outer wall of the guide rod (34), and the return spring (35) is elastically connected between the sliding plate (33) and the inner wall of the mounting groove (31).

4. An oxygen cylinder combustion device that is easy to operate according to claim 1, characterized in that: A sealing gasket (36) is provided on the bottom surface of the sliding plate (33), and multiple groups of convex strips (37) distributed in an array are fixedly connected to the surface of the sliding plate (33).

5. The oxygen flask combustion device according to claim 2, which is characterized in that: Three positioning rods (41) are provided. Both ends of the three positioning rods (41) and the threaded rod (42) are respectively rotatably connected to a convex block (43).

6. The oxygen flask combustion device convenient for operation according to claim 5, wherein: A platinum wire (44) is fixedly connected to the bottom surface of the convex block (43), and a counterweight (45) is fixedly connected to the bottom surface of the platinum wire (44).

7. The oxygen cylinder combustion device convenient for operation according to claim 2, wherein: A runner (46) is threadedly connected to the outer wall of the threaded rod (42), and the runner (46) is rotatably connected to the surface of the bottle cap (2).

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