High-speed steel hydrogen filling annealing pipe

Abstract

The utility model discloses a high-speed steel hydrogen filling annealing pipe which comprises an annealing pipe body and a heat preservation box, a sealing piece is arranged at one end of the annealing pipe body, a mounting base is arranged on the side edge of the heat preservation box, a containing groove is formed in the mounting base, a hollow bolt is arranged on the outer side of one end of the heat preservation box, and a sealing screw pipe is arranged on the outer side of the hollow bolt. A containing groove is formed in one end of the heat preservation box, a hollow bolt is arranged at the other end of the heat preservation box, a bayonet is arranged on the inner side of the other end of the heat preservation box, an annealing pipe body sequentially penetrates through the containing groove, the hollow bolt and the bayonet, a hydrogen filling pipe and an oxygen filling pipe are arranged above the heat preservation box, and two connecting ports are formed in the annealing pipe body and connected with the hydrogen filling pipe and the oxygen filling pipe respectively. The upper side and the lower side of the notch are gradually drawn close, namely the first sealing ring and the second sealing ring on the inner side are tightly attached to the annealing pipe body, so that effective sealing is conducted, the threaded opening is connected through the threaded bolt, the third sealing rubber ring is attached to the annular groove, and therefore the connecting position of the hydrogen filling pipe, the oxygen filling pipe and the heat preservation box is sealed.

Description

Technical Field

[0001] The utility model relates to the technical field of annealing tubes, in particular to a high-speed steel hydrogen-filled annealing tube. Background Art

[0002] Annealing is a metal heat treatment process, which means slowly heating the metal to a certain temperature, keeping it for a sufficient time, and then cooling it at an appropriate rate. In a broad sense, annealing is a heat treatment process for materials, including metal materials and non-metallic materials. Moreover, the purpose of annealing new materials is also different from that of traditional metal annealing.

[0003] The existing Chinese patent publication number is CN207109058U, and the name is a patent for a high-speed steel hydrogen-filled annealing tube. The background technology of the patent clearly records that "for some annealing treatments to complete solid-phase reactions, and when there are volatile substances in the reaction process, a sealing tube method is usually adopted, that is, first putting the sample into a quartz or glass tube, and then using special equipment to evacuate, and then heating and softening the opening part of the quartz or glass tube for annealing, and finally putting the sealed quartz or glass tube into a furnace for annealing. The problem faced by this tube sealing method at present is that the sealed quartz glass tube is disposable, and the tube must be broken after the sample is annealed, resulting in high costs, and the sealing tube requires a special vacuum system and quartz or glass tube heating and softening equipment, and it is also inconvenient to seal the tube", and the patent technical means solve this problem, but in this technology, the connection between the insulation chamber and the outer side of the annealing tube and the hydrogen inlet do not adopt a closed structure, which leads to poor annealing effect. Utility Model Content

[0004] The utility model aims to provide a high-speed steel hydrogen-filled annealing tube to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-speed steel hydrogen-filled annealing tube comprises an annealing tube body and an insulation box, wherein a closure is arranged at one end of the annealing tube body, a mounting seat is arranged at the side of the insulation box, a placement groove is arranged on the mounting seat, a hollow bolt is arranged at the outer side of one end of the insulation box, a closed spiral tube is arranged at the outer side of the hollow bolt, the closed spiral tube is threadedly connected to the hollow bolt, a bayonet is arranged at the inner side of the other end of the insulation box, the annealing tube body passes through the placement groove, the hollow bolt and the bayonet in sequence, a hydrogen-filled tube and an oxygen-filled tube are arranged above the insulation box, and two connecting ports are arranged on the annealing tube body, and the two connecting ports are respectively connected to the hydrogen-filled tube and the oxygen-filled tube.

[0007] In a preferred embodiment of the utility model, a threaded tube is provided inside the closure member, a screw groove is provided inside one end of the annealing tube body, the threaded tube is threadedly connected to the screw groove, and a closing sleeve is provided outside the closure member, and the closing sleeve is sleeved to the outside of the annealing tube body.

[0008] In a preferred implementation manner of the present utility model, a smoke exhaust pipe is arranged outside the bayonet, and a valve is arranged on the smoke exhaust pipe.

[0009] In a preferred embodiment of the utility model, a notch is provided inside the hollow bolt, a first sealing ring is provided outside the notch, a second sealing ring is provided inside the notch, and the closed spiral tube is truncated cone-shaped inside and outside.

[0010] In a preferred embodiment of the present utility model, a threaded opening is provided on the heat preservation box, and an annular groove is provided on the threaded opening.

[0011] In a preferred embodiment of the utility model, a connecting piece is provided on the hydrogen filling tube and the oxygen filling tube, a threaded bolt is provided on the inner side of the bottom of the connecting piece, a third sealing rubber ring is provided on the outer side of the bottom of the connecting piece, the threaded bolt is threadedly connected to the threaded opening, and the third sealing rubber ring is attached to the annular groove.

[0012] In a preferred embodiment of the utility model, a spring is arranged at the top of the inner side of the placement groove, a fixing piece is arranged at the bottom of the spring, sliding tubes are arranged on both sides of the spring, sliding rods are arranged on both sides above the fixing piece, and the sliding rods slide in the sliding tubes.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0014] Beneficial effect: the threaded pipe is used to connect the screw groove and the sealing sleeve to the outside of the annealing tube body, so that the sealing piece seals the annealing tube body, and the hollow bolt is connected by the sealing screw pipe, so that the upper and lower sides of the groove are gradually brought closer, that is, the first sealing ring and the second sealing ring on the inner side are tightly attached to the annealing tube body, so as to effectively seal, and the threaded port is connected by the threaded bolt, so that the third sealing rubber ring is attached to the annular groove, so that the connection between the hydrogen filling tube, the oxygen filling tube and the insulation box is sealed.

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the main structure of a high-speed steel hydrogen-filled annealing tube;

[0018] Figure 2 It is a schematic diagram of the structure of an annealing tube in a high-speed steel hydrogen-filled annealing tube;

[0019] Figure 3 It is a schematic diagram of the structure of a heat preservation box in a high-speed steel hydrogen-filled annealing tube;

[0020] Figure 4 It is a schematic diagram of the structure of a closure member in a high-speed steel hydrogen-filled annealing tube;

[0021] Figure 5 It is a schematic diagram of a closed spiral tube structure in a high-speed steel hydrogen-filled annealing tube;

[0022] Figure 6 This is a schematic diagram of the structure of a connector in a high-speed steel hydrogen-filled annealing tube;

[0023] Figure 7 This is a schematic diagram of the structure of a mounting seat in a high-speed steel hydrogen-filled annealing tube.

[0024] In the figure: 1. Annealing tube body; 11. Connecting port; 12. Screw groove; 13. Closing piece; 14. Closing sleeve; 15. Threaded tube; 2. Insulation box; 21. Bayonet; 22. Exhaust pipe; 23. Valve; 24. Hydrogen filling tube; 25. Oxygen filling tube; 3. Hollow bolt; 31. Notch; 32. Second sealing ring; 33. First sealing ring; 34. Closing spiral tube; 4. Threaded port; 41. Annular groove; 42. Third sealing rubber ring; 43. Threaded bolt; 44. Connecting piece; 5. Mounting seat; 51. Placement groove; 52. Spring; 53. Sliding tube; 54. Sliding rod; 55. Fixing piece. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] Please refer to Figure 1-7The utility model discloses a high-speed steel hydrogen-filled annealing tube, comprising an annealing tube body 1 and an insulation box 2. The annealing tube body 1 is the main structure of the high-speed steel hydrogen-filled annealing tube, that is, the high-speed steel annealing place. The insulation box 2 is the installation structure of the high-speed steel hydrogen-filled annealing tube, which is used for heat preservation and gas transportation. A bayonet 21 is arranged on the inner side of the other end of the insulation box 2, and a hydrogen-filled tube 24 and an oxygen-filled tube 25 are arranged above the insulation box 2. Two connecting ports 11 are arranged on the annealing tube body 1, and the two connecting ports 11 are respectively connected to the hydrogen-filled tube 24 and the oxygen-filled tube 25, that is, the inside of the annealing tube body 1 is filled with hydrogen through the hydrogen-filled tube 24, and the inside of the annealing tube body 1 is filled with oxygen through the oxygen-filled tube 25. A smoke exhaust pipe 22 is arranged outside the bayonet 21, and a valve 23 is arranged on the smoke exhaust pipe 22. The end of the annealing tube body 1 is on the bayonet 21, that is, the smoke exhaust pipe 22 is switched by the valve 23, and smoke is exhausted through the smoke exhaust pipe 22.

[0027] A sealing member 13 is provided at one end of the annealing tube body 1, a threaded tube 15 is provided inside the sealing member 13, a screw groove 12 is provided inside one end of the annealing tube body 1, the threaded tube 15 is threadedly connected to the screw groove 12, a sealing sleeve 14 is provided outside the sealing member 13, that is, the screw groove 12 is connected to the sealing sleeve 14 by the threaded tube 15, and the sealing member 13 seals the annealing tube body 1, a hollow bolt 3 is provided outside one end of the heat preservation box 2, a sealing screw tube 34 is provided outside the hollow bolt 3, and the sealing screw 34 is provided outside the hollow bolt 3. The tube 34 is threadedly connected to the hollow bolt 3. A notch 31 is provided on the inner side of the hollow bolt 3. A first sealing ring 33 is provided on the outer side of the notch 31. A second sealing ring 32 is provided on the inner side of the notch 31. The inner and outer sides of the closed spiral tube 34 are both truncated cone-shaped, that is, the inside of the closed spiral tube 34 gradually becomes smaller. Therefore, when the closed spiral tube 34 is connected to the hollow bolt 3, the upper and lower sides of the notch 31 will gradually come together, that is, the first sealing ring 33 and the second sealing ring 32 on the inner side are tightly attached to the annealing tube body 1, thereby effectively sealing.

[0028] The insulated box 2 is provided with a threaded opening 4, and an annular groove 41 is provided on the threaded opening 4. A connecting piece 44 is provided on the hydrogen filling tube 24 and the oxygen filling tube 25. A threaded bolt 43 is provided on the inner side of the bottom of the connecting piece 44, and a third sealing rubber ring 42 is provided on the outer side of the bottom of the connecting piece 44. The threaded bolt 43 is threadedly connected to the threaded opening 4. The connecting piece 44 is located above the threaded opening 4, and the threaded bolt 43 is connected to the threaded opening 4, so that the third sealing rubber ring 42 is attached to the annular groove 41, so that the hydrogen filling tube 24, the oxygen filling tube 25 and the insulated box 2 are connected. The connection is closed, a mounting seat 5 is provided on the side of the heat preservation box 2, a placement groove 51 is provided on the mounting seat 5, the annealing tube body 1 is on the placement groove 51, a spring 52 is provided on the top of the inner side of the placement groove 51, a fixing piece 55 is provided at the bottom of the spring 52, a sliding tube 53 is provided on both sides of the spring 52, and sliding rods 54 are provided on both sides above the fixing piece 55. The bottom fixing piece 55 is pushed by the spring 52, and the sliding rods 54 on both sides slide in the sliding tube 53, so that the fixing piece 55 is pressed on the annealing tube body 1 to impose certain restrictions on it.

[0029] The working principle of the utility model is as follows: the annealing tube body 1 is sequentially passed through the placement groove 51, the hollow bolt 3, and the bayonet 21, and the two connecting ports 11 are respectively connected to the hydrogen filling tube 24 and the oxygen filling tube 25, and the screw groove 12 and the sealing sleeve 14 are sleeved to the outside of the annealing tube body 1 through the threaded tube 15, so that the sealing member 13 seals the annealing tube body 1, and the bottom fixing member 55 is pushed by the spring 52, and the sliding rods 54 on both sides slide in the sliding tube 53, so that the fixing member 55 is pressed on the annealing tube body 1, and a certain restriction is imposed on it, and the hollow bolt 3 is connected by the sealing screw tube 34, so that the groove The upper and lower sides of the opening 31 gradually come together, that is, the first sealing ring 33 and the second sealing ring 32 on the inner side are tightly attached to the annealing tube body 1, so as to effectively seal it, and the threaded opening 4 is connected by the threaded bolt 43, so that the third sealing rubber ring 42 is attached to the annular groove 41, so that the connection between the hydrogen filling pipe 24, the oxygen filling pipe 25 and the heat preservation box 2 is sealed, that is, the inside of the annealing tube body 1 is filled with hydrogen through the hydrogen filling pipe 24, and the inside of the annealing tube body 1 is filled with oxygen through the oxygen filling pipe 25, and the exhaust pipe 22 is opened and closed by the valve 23, and smoke is exhausted through the exhaust pipe 22.

[0030] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A high-speed steel hydrogen-filled annealing tube, comprising an annealing tube body (1) and a heat preservation box (2), characterized in that: A closing piece (13) is provided at one end of the annealing tube body (1), a mounting seat (5) is provided on the side of the heat preservation box (2), a placement groove (51) is provided on the mounting seat (5), a hollow bolt (3) is provided on the outside of one end of the heat preservation box (2), a closed spiral tube (34) is provided on the outside of the hollow bolt (3), the closed spiral tube (34) is threadedly connected to the hollow bolt (3), a bayonet (21) is provided on the inside of the other end of the heat preservation box (2), the annealing tube body (1) passes through the placement groove (51), the hollow bolt (3), and the bayonet (21) in sequence, a hydrogen filling tube (24) and an oxygen filling tube (25) are provided above the heat preservation box (2), and two connecting ports (11) are provided on the annealing tube body (1), and the two connecting ports (11) are respectively connected to the hydrogen filling tube (24) and the oxygen filling tube (25).

2. A high speed steel hydrogen annealing tube according to claim 1, characterized in that: A threaded tube (15) is provided on the inner side of the closing piece (13), a screw groove (12) is provided on the inner side of one end of the annealing tube body (1), the threaded tube (15) is threadedly connected to the screw groove (12), and a closing sleeve (14) is provided on the outer side of the closing piece (13), the closing sleeve (14) being sleeved onto the outer side of the annealing tube body (1).

3. The high speed steel hydrogen annealing tube according to claim 1, characterized in that: A smoke exhaust pipe (22) is provided outside the bayonet (21), and a valve (23) is provided on the smoke exhaust pipe (22).

4. The high speed steel hydrogen annealing tube according to claim 1, characterized in that: A notch (31) is provided on the inner side of the hollow bolt (3), a first sealing ring (33) is provided on the outer side of the notch (31), a second sealing ring (32) is provided on the inner side of the notch (31), and both the inner and outer sides of the closed spiral tube (34) are in a truncated cone shape.

5. The high speed steel hydrogen annealing tube according to claim 1, characterized in that: The heat preservation box (2) is provided with a threaded opening (4), and the threaded opening (4) is provided with an annular groove (41).

6. The high speed steel hydrogen annealing tube according to claim 5, characterized in that: The hydrogen filling tube (24) and the oxygen filling tube (25) are provided with a connecting piece (44), a threaded bolt (43) is provided on the inner side of the bottom of the connecting piece (44), a third sealing rubber ring (42) is provided on the outer side of the bottom of the connecting piece (44), the threaded bolt (43) is threadedly connected to the threaded opening (4), and the third sealing rubber ring (42) is attached to the annular groove (41).

7. The high speed steel hydrogen annealing tube according to claim 1, characterized in that: A spring (52) is arranged at the top of the inner side of the placement groove (51), a fixing piece (55) is arranged at the bottom of the spring (52), sliding tubes (53) are arranged on both sides of the spring (52), and sliding rods (54) are arranged on both sides above the fixing piece (55), and the sliding rods (54) slide in the sliding tubes (53).

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