Pressing and sealing mechanism of nitriding machine

Abstract

The utility model provides a compressing and sealing mechanism of a nitriding machine, which comprises a nitriding machine body, a nitriding machine door is arranged at the top of the nitriding machine body, a compressing and sealing device is arranged in the nitriding machine body, and the compressing and sealing device comprises a fixed plate, a first oscillating rod, a second oscillating rod, a rotating rod, a special-shaped plate, a sliding block and a connecting plate. A feeding port is formed in the top of the nitriding machine door, an anti-leakage device is arranged on the top of the nitriding machine door, by arranging the pressing and sealing device, the inner cavity of the nitriding machine body can be pressed and sealed, gas in the inner cavity of the nitriding machine body can be prevented from leaking, and the safety of the whole device is improved; the nitriding machine body can be conveniently opened, the inner cavity of the nitriding machine body can be cleaned or overhauled, the feeding port can be sealed by arranging the leakage-proof device, and the capacity of preventing gas leakage is further improved.

Description

Technical Field

[0001] The utility model relates to a pressing and sealing mechanism of a nitriding machine, belonging to the technical field of nitriding treatment. Background Art

[0002] Nitriding treatment is to use ammonia at high temperature, usually 500 degrees Celsius to 600 degrees Celsius, to decompose active nitrogen atoms into the surface layer of steel to form an iron-nitrogen alloy, thereby changing the mechanical properties and physical and chemical properties of the steel surface. Its mechanical properties are mainly manifested in: enhancing wear resistance, increasing strength, and improving corrosion resistance. Nitriding furnace is a common equipment for nitriding treatment. Nitriding treatment using a nitriding furnace usually involves adding ammonia to decompose it into active nitrogen and hydrogen.

[0003] Common nitriding machines are generally equipped with a feed port or a top cover on the top. However, in actual use, the feed port or the top cover lacks a mechanism to compress and seal the inside of the nitriding machine, which causes the gas in the nitriding machine to easily overflow from the feed port or the top cover, posing certain safety hazards.

[0004] Therefore, a compression sealing mechanism of a nitriding machine is proposed. Utility Model Content

[0005] In view of this, the utility model provides a compression sealing mechanism for a nitriding machine to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the utility model is implemented as follows: a compression and sealing mechanism of a nitriding machine, comprising a nitriding machine body, a nitriding machine door is arranged on the top of the nitriding machine body, a compression and sealing device is arranged inside the nitriding machine body, the compression and sealing device comprises a fixed plate, a first swing rod, a second swing rod, a rotating rod, a special-shaped plate, a sliding block and a connecting plate, a feed port is opened on the top of the nitriding machine door, an anti-leakage device is arranged on the top of the nitriding machine door, and the anti-leakage device comprises a ring, a rotating disk, a slide groove, a slider and a slide rod.

[0007] Further preferably, there are two fixed plates, which are respectively fixedly connected to the left and right sides of the inner cavity of the nitriding machine body; there are two first swing rods, which are respectively movably connected to the inner sides of the fixed plates; there are two second swing rods, which are respectively movably connected to the inner sides of the first swing rods; the rotating rod is movably connected to the inner sides of the two second swing rods, and both ends of the rotating rod pass through the outer sides of the two second swing rods; there are two special-shaped plates, which are respectively movably connected to the two ends of the rotating rod, and the outer sides of the special-shaped plates are respectively fitted with the inner sides of the fixed plates; there are two sliding blocks, which are respectively movably connected to the outer sides of the special-shaped plates; there are two connecting plates, which are respectively fixedly connected to the tops of the inner sides of the two special-shaped plates, and the top of the connecting plate is fixedly connected to the bottom of the nitriding machine door.

[0008] Further preferably, the ring is fixedly connected to the top of the nitriding machine door and is located outside the feed port, the rotating disk is arranged at the top of the ring, the slide groove is opened at the top of the ring, the number of the sliders is two, which are respectively slidably connected to the front and rear sides of the inner side of the slide groove, and the number of the sliding rods is two, which are respectively fixedly connected to the top of the slider.

[0009] Further preferably, the right side of the nitriding machine body is movably connected with an anti-skid rotating block, and the left side of the anti-skid rotating block is movably connected to the right side of the first swing rod located on the right side.

[0010] Further preferably, a special-shaped groove is provided on the inner side of the special-shaped plate, and the second swing rod and the sliding block are slidably connected to the inner side of the special-shaped groove.

[0011] Further preferably, a first sealing groove is opened above the inner cavity of the nitriding machine body, a first sealing strip is provided on the outer surface of the nitriding machine door, and the first sealing strip is snap-connected to the inner side of the first sealing groove.

[0012] Further preferably, both left and right sides of the inner surface of the rotating disk are provided with limiting grooves, and the sliding rod is slidably connected to the inner side of the limiting grooves.

[0013] Further preferably, a second sealing groove is formed on the back side of the slider located at the front side, a second sealing strip is formed on the front side of the slider located at the back side, and the second sealing strip is snap-connected to the inner side of the second sealing groove.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. The utility model can play a role of compression and sealing on the inner cavity of the nitriding machine body by arranging a compression and sealing device, thereby preventing gas leakage in the inner cavity of the nitriding machine body, improving the safety of the overall device, and also facilitating the opening of the nitriding machine body to clean or overhaul the inner cavity of the nitriding machine body.

[0016] Second, the utility model can seal the feed port by providing an anti-leakage device, thereby further improving the ability to prevent gas leakage.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the front structure of the main body of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the compression sealing device of the utility model in a disassembled state;

[0021] Figure 3 This is a schematic diagram of the top view of the nitriding machine body of the utility model;

[0022] Figure 4 This is a structural schematic diagram of the nitriding machine door of the utility model in a disassembled state;

[0023] Figure 5 This is an explosion diagram of the anti-leakage device of the utility model.

[0024] Figure numerals: 1. nitriding machine body; 2. nitriding machine door; 3. compression sealing device; 301. fixed plate; 302. first swing rod; 303. second swing rod; 304. rotating rod; 305. special-shaped plate; 306. sliding block; 307. connecting plate; 4. feed port; 5. anti-leakage device; 501. ring; 502. rotating disk; 503. slide groove; 504. slider; 505. slide rod; 6. anti-slip rotating block; 7. special-shaped groove; 8. first sealing groove; 9. first sealing strip; 10. limit groove; 11. second sealing groove; 12. second sealing strip. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0026] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figure 1-5 As shown, the embodiment of the utility model provides a compression sealing mechanism of a nitriding machine, including a nitriding machine body 1, a nitriding machine door 2 is arranged on the top of the nitriding machine body 1, a compression sealing device 3 is arranged inside the nitriding machine body 1, the compression sealing device 3 includes a fixed plate 301, a first swing rod 302, a second swing rod 303, a rotating rod 304, a special-shaped plate 305, a sliding block 306 and a connecting plate 307, a feed port 4 is opened on the top of the nitriding machine door 2, and an anti-leakage device 5 is arranged on the top of the nitriding machine door 2, the anti-leakage device 5 includes a ring 501, a rotating disk 502, a slide groove 503, a slider 504 and a slide rod 505, the number of the fixed plates 301 is two, which are respectively fixedly connected to the left and right sides of the inner cavity of the nitriding machine body 1, and the first swing rod 302 is provided with a feed port 4. There are two of them, which are movably connected to the inner side of the fixed plate 301 respectively; there are two second swing rods 303, which are movably connected to the inner side of the first swing rod 302 respectively; the rotating rod 304 is movably connected to the inner side of the two second swing rods 303, and both ends of the rotating rod 304 pass through the outer sides of the two second swing rods 303; there are two special-shaped plates 305, which are movably connected to the two ends of the rotating rod 304 respectively, and the outer sides of the special-shaped plates 305 are respectively fitted with the inner side of the fixed plate 301; there are two sliding blocks 306, which are movably connected to the outer sides of the special-shaped plates 305 respectively; there are two connecting plates 307, which are fixedly connected to the top of the inner side of the two special-shaped plates 305 respectively, and the top of the connecting plate 307 is fixedly connected to the bottom of the nitriding machine door 2.

[0029] By providing a compression sealing device 3, the inner cavity of the nitriding machine body 1 can be compressed and sealed to prevent gas leakage in the inner cavity of the nitriding machine body 1, thereby improving the safety of the overall device, and also making it easy to open the nitriding machine body 1 to clean or overhaul the inner cavity of the nitriding machine body 1.

[0030] Example 2

[0031] In one embodiment, the circular ring 501 is fixedly connected to the top of the nitriding machine door 2 and is located on the outside of the feed port 4, the rotating disk 502 is arranged on the top of the circular ring 501, the slide groove 503 is opened on the top of the circular ring 501, the number of sliders 504 is two, which are respectively slidably connected to the front and rear sides of the inner side of the slide groove 503, and the number of sliding rods 505 is two, which are respectively fixedly connected to the top of the sliders 504.

[0032] By providing the anti-leakage device 5, the feed port 4 can be sealed, further improving the ability to prevent gas leakage.

[0033] Example 3

[0034] In one embodiment, the right side of the nitriding machine body 1 is movably connected with an anti-slip rotating block 6, and the left side of the anti-slip rotating block 6 is movably connected to the right side of the first swing rod 302 located on the right side, the inner side of the special-shaped plate 305 is provided with a special-shaped groove 7, and the second swing rod 303 and the sliding block 306 are both slidably connected to the inner side of the special-shaped groove 7, a first sealing groove 8 is provided above the inner cavity of the nitriding machine body 1, a first sealing strip 9 is provided on the outer surface of the nitriding machine door 2, and the first sealing strip 9 is snapped to the inner side of the first sealing groove 8, limiting grooves 10 are provided on the left and right sides of the inner surface of the rotating disk 502, and the sliding rod 505 is slidably connected to the inner side of the limiting groove 10, a second sealing groove 11 is provided on the back side of the slider 504 located on the front side, a second sealing strip 12 is provided on the front side of the slider 504 located on the back side, and the second sealing strip 12 is snapped to the inner side of the second sealing groove 11.

[0035] By setting the anti-skid rotating block 6, the first swing rod 302 located on the right side can be driven to swing by rotating the anti-skid rotating block 6, and it can also prevent the hand from slipping out during the rotation process. By setting the special-shaped groove 7, the movement of the second swing rod 303 and the sliding block 306 can be limited. By setting the first sealing groove 8 and the first sealing strip 9, the sealing ability of the nitriding machine door 2 can be improved. By setting the limiting groove 10, the stability of the sliding rod 505 during sliding can be improved. By setting the second sealing groove 11 and the second sealing strip 12, the sealing ability of the feed port 4 can be improved.

[0036] When the utility model is working: firstly, the nitriding machine body 1 and the nitriding machine door 2 are usually in a compressed and sealed state through the compressed and sealed device 3. When the nitriding machine door 2 needs to be opened to clean or overhaul the inside of the nitriding machine body 1, the first swinging rod 302 on the right side can be driven to swing by rotating the anti-skid rotating block 6, and the first swinging rod 302 on the right side drives the second swinging rod 303 on the right side to swing, and the second swinging rod 303 on the right side drives the rotating rod 304 to move, thereby driving the first swinging rod 302 and the second swinging rod 303 on the left side to swing synchronously, and in the process of the rotating rod 304 moving, the special-shaped plate 305 is driven to move upward, and the special-shaped plate 305 with The movable sliding block 306 moves, passes through the limit of the special-shaped groove 7, and makes the rotating rod 304 enter the fork of the special-shaped groove 7, thereby completing the flipping, driving the nitriding machine door 2 to move up a certain distance, and then flipping, so as to open the nitriding machine door 2. When the nitriding machine body 1 needs to be compacted and sealed again, the anti-skid rotating block 6 is rotated in the opposite direction to make the nitriding machine door 2 flip first and then descend, enter the top of the inner cavity of the nitriding machine body 1, and make the first sealing groove 8 clamped to the inner side of the first sealing strip 9, and the rotating disk 502 can also be rotated to drive the limit groove 10 to rotate, thereby driving the sliding rod 505 and the slider 504 to move, and the opening or closing of the feed port 4 is completed by the close fit or separation of the two sliders 504.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A compression sealing mechanism for a nitriding machine, comprising a nitriding machine body (1), characterized in that: A nitriding machine door (2) is arranged on the top of the nitriding machine body (1); a pressing and sealing device (3) is arranged inside the nitriding machine body (1); the pressing and sealing device (3) comprises a fixed plate (301), a first swinging rod (302), a second swinging rod (303), a rotating rod (304), a special-shaped plate (305), a sliding block (306) and a connecting plate (307); a feed port (4) is opened on the top of the nitriding machine door (2); a leakage prevention device (5) is arranged on the top of the nitriding machine door (2); the leakage prevention device (5) comprises a ring (501), a rotating disk (502), a sliding groove (503), a sliding block (504) and a sliding rod (505).

2. The compression and sealing mechanism of a nitriding machine according to claim 1, characterized in that: There are two fixed plates (301) respectively fixedly connected to the left and right sides of the inner cavity of the nitriding machine body (1); there are two first swinging rods (302) respectively movably connected to the inner side of the fixed plate (301); there are two second swinging rods (303) respectively movably connected to the inner side of the first swinging rod (302); the rotating rod (304) is movably connected to the inner sides of the two second swinging rods (303); and both ends of the rotating rod (304) penetrate the two second swinging rods (303). The outer side of the special-shaped plates (305) is two in number and is movably connected to the two ends of the rotating rod (304), and the outer sides of the special-shaped plates (305) are respectively fitted with the inner sides of the fixed plates (301); the number of the sliding blocks (306) is two and is respectively movably connected to the outer sides of the special-shaped plates (305); the number of the connecting plates (307) is two and is respectively fixedly connected to the top of the inner sides of the two special-shaped plates (305), and the top of the connecting plates (307) is fixedly connected to the bottom of the nitriding machine door (2).

3. The compression and sealing mechanism of a nitriding machine according to claim 1, characterized in that: The circular ring (501) is fixedly connected to the top of the nitriding machine door (2) and is located outside the feed port (4); the rotating disk (502) is arranged on the top of the circular ring (501); the slide groove (503) is opened on the top of the circular ring (501); the number of the sliders (504) is two, which are respectively slidably connected to the front and rear sides of the inner side of the slide groove (503); the number of the sliding rods (505) is two, which are respectively fixedly connected to the top of the sliders (504).

4. The compression and sealing mechanism of a nitriding machine according to claim 2, characterized in that: The right side of the nitriding machine body (1) is movably connected to an anti-skid rotating block (6), and the left side of the anti-skid rotating block (6) is movably connected to the right side of the first swing rod (302) located on the right side.

5. The compression and sealing mechanism of a nitriding machine according to claim 2, characterized in that: A special-shaped groove (7) is provided on the inner side of the special-shaped plate (305), and the second swing rod (303) and the sliding block (306) are slidably connected to the inner side of the special-shaped groove (7).

6. The compression and sealing mechanism of a nitriding machine according to claim 1, characterized in that: A first sealing groove (8) is provided above the inner cavity of the nitriding machine body (1), a first sealing strip (9) is provided on the outer surface of the nitriding machine door (2), and the first sealing strip (9) is snap-fitted to the inner side of the first sealing groove (8).

7. The compression and sealing mechanism of a nitriding machine according to claim 3, characterized in that: Limiting grooves (10) are provided on both left and right sides of the inner surface of the rotating disk (502), and the sliding rod (505) is slidably connected to the inner side of the limiting groove (10).

8. The compression and sealing mechanism of a nitriding machine according to claim 3, characterized in that: A second sealing groove (11) is provided on the back side of the slider (504) located on the front side, a second sealing strip (12) is provided on the front side of the slider (504) located on the back side, and the second sealing strip (12) is snap-connected to the inner side of the second sealing groove (11).

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