A four-in-one vacuum box-type atmosphere furnace

Abstract

This utility model discloses a four-in-one vacuum chamber-type atmosphere furnace, belonging to the field of atmosphere furnaces. It includes an atmosphere furnace body; the furnace body is internally equipped with a temperature-uniform baking mechanism for centering and detaching the object to be heated from the bottom of the chamber; each of the four chambers has a temperature-uniform baking mechanism fixedly installed inside; the four chambers of the atmosphere furnace body are all connected and fixedly connected to a first pipe at their rear sides, and each first pipe is fixedly equipped with a solenoid valve. The ends of the first pipes furthest from the chambers are fixedly connected to a vacuum pump input and a gas tank input, both of which are fixedly connected to solenoid valves. Through the above method, this utility model can achieve separate control of the vacuuming of multiple chambers via solenoid valves, enabling different chambers to have the same or different vacuum levels, and can also control different chambers to have the same or different gas atmospheres as needed.

Description

Technical Field

[0001] This utility model relates to the field of atmosphere furnaces, specifically to a four-in-one vacuum box-type atmosphere furnace. Background Technology

[0002] An atmosphere furnace is an industrial furnace used for high-temperature processing in a controlled atmosphere. It is primarily used for processes such as material heat treatment, sintering, annealing, and brazing. It prevents material oxidation or facilitates specific chemical reactions by introducing inert gases (such as nitrogen and argon), reducing gases (such as hydrogen), or specific gas mixtures. Atmosphere furnaces typically feature precise temperature control systems (up to 2000℃ or higher), sealed chambers, and gas circulation devices. They are suitable for the precision machining of materials such as metals, ceramics, and semiconductors, and are widely used in scientific research, aerospace, and electronics manufacturing.

[0003] Chinese patent CN216411176U discloses a vacuum heating atmosphere testing fixture, including symmetrically arranged mounting plates and symmetrically movably mounted clamping assemblies on one side of the mounting plates. Two mounting plates are symmetrically arranged, and two clamping assemblies are symmetrically arranged between the two mounting plates. Connecting ears are centrally located on both sides of each mounting plate. A threaded screw is rotatably mounted on the side of each connecting ear facing the clamping assembly. One end of the threaded screw is fixedly connected to a driving component. The clamping assembly includes a support plate with U-shaped plates centrally located on both sides. Threaded holes for mounting the threaded screw are formed within the support plate. This vacuum heating atmosphere testing fixture has a reasonable structure, facilitating the clamping and fixing of objects, thereby allowing the bottom of the object to detach from the bottom of the cavity, resulting in more even heating of the object and avoiding affecting the test results of the vacuum heating atmosphere furnace performance. It is highly practical. However, this device still has the following problems:

[0004] 1. Existing atmosphere furnace equipment can only produce the same product at the same time, which is not conducive to flexible production scheduling and has low efficiency.

[0005] 2. During use, the device requires rotating the threaded screw to clamp the test object in the center, and then turning the screw to make the bottom of the object detach from the bottom of the cavity; the process is relatively cumbersome.

[0006] Based on this, the present invention designs a four-in-one vacuum box-type atmosphere furnace to solve the above problems. Utility Model Content

[0007] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a four-in-one vacuum box-type atmosphere furnace.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A four-in-one vacuum chamber-type atmosphere furnace, comprising an atmosphere furnace body;

[0010] The atmosphere furnace body is equipped with a temperature uniform baking mechanism for centering and positioning the heated object and removing it from the bottom of the cavity; a temperature uniform baking mechanism is fixedly installed inside each of the four cavities.

[0011] The atmosphere furnace body is equipped with a temperature uniform baking mechanism for centering and positioning the heated object and removing it from the bottom of the cavity; a temperature uniform baking mechanism is fixedly installed inside each of the four cavities.

[0012] The atmosphere furnace body is equipped with a simple locking mechanism for convenient sealing of the closed doors; a set of simple locking mechanisms is fixedly installed on each cavity door.

[0013] The four cavities of the atmosphere furnace body are all connected and fixedly connected to the rear side of a first pipe. Each first pipe is fixedly equipped with a solenoid valve. The ends of the first pipes away from the cavities are fixedly connected to the vacuum pump input end and / or the gas tank input end. Both the vacuum pump input end and the gas tank input end are fixedly connected with solenoid valves.

[0014] Furthermore, the temperature uniform baking mechanism includes a centering lifting drive assembly, a transmission assembly, a limiting assembly, and a clamping and fixing assembly; the atmosphere furnace body and the transmission assembly are both connected to the centering lifting drive assembly; two sets of transmission assemblies and limiting assemblies are symmetrically arranged front and rear; two sets of clamping and fixing assemblies are symmetrically arranged left and right; the transmission assembly and the clamping and fixing assembly are both connected to the limiting assembly; the clamping and fixing assembly is connected to the atmosphere furnace body; the centering lifting drive assembly is used to drive the transmission assembly; the transmission assembly is used to link the centering lifting drive assembly and the clamping and fixing assembly; the limiting assembly is used to limit the clamping and fixing assembly, and the clamping and fixing assembly is used to centerfully clamp and lift the object to be heated;

[0015] Furthermore, the centering lifting drive assembly includes a guide column, a drive spring, a drive plate, and a push plate; the upper end of the guide column is fixedly connected to the top of the cavity of the atmosphere furnace body; the drive spring is sleeved on the outside of the guide column, the upper end of the drive spring is fixedly connected to the top of the cavity of the atmosphere furnace body, the lower end of the drive spring is fixedly connected to the drive plate, and the lower end of the guide column is slidably connected to the drive plate; the push plate is fixedly installed at the lower end of the drive plate; the drive plate is connected to the transmission assembly.

[0016] Furthermore, the transmission assembly includes a first connecting rod and a second connecting rod; both the first connecting rod and the second connecting rod are hinged to the lower end of the drive plate; the first connecting rod and the second connecting rod are symmetrically arranged on the left and right sides of the lower end of the drive plate; both the first connecting rod and the second connecting rod are connected to the limiting assembly.

[0017] Furthermore, the limiting component includes a slide rail and a slider; the lower end of the slide rail is fixedly connected to the bottom of the cavity; the slide rail and the slider correspond one-to-one and are slidably connected with each other; the two sliders are respectively hinged to connecting rod one and connecting rod two; and the slider is connected to the clamping and fixing component.

[0018] Furthermore, the clamping and fixing assembly includes a clamping plate and a bottom lifting plate; the rear end of the clamping plate is fixedly connected to a slider; the front end of the bottom lifting plate is fixedly connected to a slider symmetrical to the rear slider in another set of limiting assemblies; the bottom lifting plate is fixedly connected to the clamping plate on the side where the two clamping plates are close to each other; the side of the bottom lifting plate away from the clamping plate is provided with an inclined surface to facilitate scooping up the object.

[0019] Furthermore, the simplified locking mechanism includes a limiting sliding assembly, an abutment sealing assembly, and a driving sealing assembly; the atmosphere furnace body, the abutment sealing assembly, and the driving sealing assembly are all connected to the limiting sliding assembly; two sets of limiting sliding assemblies and two sets of driving sealing assemblies are symmetrically arranged above and below the cavity door; the abutment sealing assembly and the driving sealing assembly are connected; the limiting sliding assembly is used to limit the sliding of the abutment sealing assembly, and the abutment sealing assembly is used to seal the door of the atmosphere furnace body; the driving sealing assembly is used to drive the abutment sealing assembly to seal.

[0020] Furthermore, the limiting sliding assembly includes a second slide rail and a second slider; the second slide rail is fixedly connected to the main body of the atmosphere furnace, and both second sliders are slidably connected to the second slide rail; the second slider is connected to the abutment sealing assembly.

[0021] Furthermore, the abutment sealing assembly includes a limiting post, a return spring, and an abutment plate; the front end of each slider is fixedly connected to a limiting post, and a return spring is sleeved on the outside of the limiting post; the rear end of the return spring is fixedly connected to the slider, and the front end of the return spring is fixedly connected to the abutment plate; the two abutment plates are symmetrically arranged left and right, and the upper and lower ends of the abutment plates are respectively limited and slidably connected to two symmetrically arranged limiting posts; the limiting post is connected to the drive sealing assembly.

[0022] Compared with the prior art, the advantages of this utility model are as follows: 1. This utility model can realize the separate control of vacuuming of multiple cavities through electromagnetic valves, which can realize the same or different vacuum levels in different cavities, and can also control different cavities to have the same or different gas atmospheres.

[0023] 2. This utility model can conveniently and quickly center and clamp objects processed in an atmosphere furnace, and detach the bottom of the object from the bottom of the cavity;

[0024] 3. This utility model can conveniently lock and seal multiple stations of the atmosphere furnace through a simple locking mechanism, and can control multiple stations separately. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This utility model relates to a three-dimensional four-in-one vacuum box-type atmosphere furnace. Figure 1 ;

[0027] Figure 2 This is a front view of a four-in-one vacuum chamber-type atmosphere furnace according to the present invention.

[0028] Figure 3 This is a left view of a four-in-one vacuum chamber atmosphere furnace according to the present invention.

[0029] Figure 4 For along Figure 3 The solid after removing a portion in the AA direction Figure 1 ;

[0030] Figure 5 For along Figure 3 The solid after removing a portion in the AA direction Figure 2 ;

[0031] Figure 6 This utility model relates to a three-dimensional four-in-one vacuum box-type atmosphere furnace. Figure 2 ;

[0032] Figure 7 This is an enlarged view of the limiting component;

[0033] Figure 8 for Figure 6 Enlarged view of point C in the middle;

[0034] Figure 9 This is a rear view of a four-in-one vacuum chamber-type atmosphere furnace according to the present invention.

[0035] The labels in the diagram represent:

[0036] 1. Atmosphere oven body; 2. Temperature uniform baking mechanism; 21. Centered lifting drive assembly; 211. Guide column; 212. Drive spring; 213. Drive plate; 214. Push plate; 22. Transmission assembly; 221. Link 1; 222. Link 2; 23. Limiting assembly; 231. Slide rail 1; 232. Slider 1; 24. Clamping and fixing assembly; 241. Clamping plate; 242. Bottom lifting plate; 3. Simple locking mechanism; 31. Limiting sliding assembly; 311. Slide rail 2; 312. Slider 2; 32. Abutment sealing assembly; 321. Limiting column; 322. Return spring; 323. Abutment plate; 33. Drive sealing assembly; 331. Drive pressure plate; 332. Screw; 4. First pipe; 5. Solenoid valve; 6. Vacuum pump; 7. Gas tank. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0038] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0039] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-9 A four-in-one vacuum chamber atmosphere furnace, comprising an atmosphere furnace body 1;

[0040] The atmosphere furnace body 1 is equipped with a temperature uniform baking mechanism 2 for centering and positioning the heated object and removing it from the bottom of the cavity; a temperature uniform baking mechanism 2 is fixedly installed inside each of the four cavities.

[0041] The atmosphere furnace body 1 is equipped with a simple locking mechanism 3 for convenient sealing of the closed door; a set of simple locking mechanisms 3 is fixedly installed on each cavity door;

[0042] The four cavities of the atmosphere furnace body 1 are all connected and fixedly connected to the rear sides by first pipes 4. Each first pipe 4 is fixedly equipped with a solenoid valve 5. The ends of the first pipes 4 furthest from the cavities are fixedly connected to the input ends of vacuum pump 6 and gas tank 7. Solenoid valves 5 are also fixedly connected to the input ends of vacuum pump 6 and gas tank 7. Depending on different needs, only a vacuum pump or a gas tank may be installed. The gas tank can store the required gases, such as inert gases like nitrogen and argon, or other gases required for the gas atmosphere in production processes, such as hydrogen. Multiple gas tanks can be set up to form an atmosphere station, with independent valves for independent control and switching.

[0043] The vacuum pump can be controlled separately for multiple chambers via solenoid valve 5, allowing different chambers to have the same or different vacuum levels. After the vacuum pump 6 is turned off, gas from gas tank 7 via solenoid valve 5 is injected into one or more chambers, thereby controlling different chambers to have the same or different gas atmospheres. This allows for comparison under different gas atmospheres, which is beneficial for practical use.

[0044] like Figure 4 As shown, the temperature uniform baking mechanism 2 includes a centering lifting drive assembly 21, a transmission assembly 22, a limiting assembly 23, and a clamping and fixing assembly 24; the atmosphere furnace body 1 and the transmission assembly 22 are both connected to the centering lifting drive assembly 21; the two sets of transmission assemblies 22 and the limiting assembly 23 are symmetrically arranged front and rear; the two sets of clamping and fixing assemblies 24 are symmetrically arranged left and right; the transmission assembly 22 and the clamping and fixing assembly 24 are both connected to the limiting assembly 23; the clamping and fixing assembly 24 is connected to the atmosphere furnace body 1; the centering lifting drive assembly 21 is used to drive the transmission assembly 22; the transmission assembly 22 is used to link the centering lifting drive assembly 21 and the clamping and fixing assembly 24; the limiting assembly 23 is used to limit the clamping and fixing assembly 24; the clamping and fixing assembly 24 is used to center-clamp and lift the object to be heated and baked.

[0045] In this invention, the operator pushes the centering lifting drive assembly 21 upwards, driving the transmission assembly 22 to cause the clamping and fixing assembly 24 to slide at the upper limit of the limiting assembly 23, thus opening the clamping and fixing assembly 24. The object to be fired is then placed between the clamping and fixing assemblies 24. After placement, the centering lifting drive assembly 21 is released, and the centering lifting drive assembly 21, through the transmission assembly 22, causes the clamping and fixing assembly 24 to slide at the upper limit of the limiting assembly 23, thus clamping the object. This achieves centered clamping of the object and removes the bottom of the object from the bottom of the cavity, resulting in a more uniform firing temperature. Then, the door of the atmosphere furnace body 1 is conveniently fixed using the simple locking mechanism 3.

[0046] The centering lifting drive assembly 21 includes a guide column 211, a drive spring 212, a drive plate 213, and a push plate 214. The upper end of the guide column 211 is fixedly connected to the top of the cavity of the atmosphere furnace body 1. The drive spring 212 is sleeved on the outside of the guide column 211, with its upper end fixedly connected to the top of the cavity of the atmosphere furnace body 1 and its lower end fixedly connected to the drive plate 213. The lower end of the guide column 211 is slidably connected to the drive plate 213. The push plate 214 is fixedly installed at the lower end of the drive plate 213. The drive plate 213 is connected to the transmission assembly 22.

[0047] The transmission assembly 22 includes a first connecting rod 221 and a second connecting rod 222; both the first connecting rod 221 and the second connecting rod 222 are hinged to the lower end of the drive plate 213; the first connecting rod 221 and the second connecting rod 222 are symmetrically arranged on the left and right sides of the lower end of the drive plate 213; both the first connecting rod 221 and the second connecting rod 222 are connected to the limiting assembly 23.

[0048] The limiting component 23 includes a slide rail 231 and a slider 232; the lower end of the slide rail 231 is fixedly connected to the bottom of the cavity; the slide rail 231 and the slider 232 correspond one-to-one and are limited slidingly connected; the two sliders 232 are respectively hinged to the connecting rod 221 and the connecting rod 222; the slider 232 is connected to the clamping and fixing component 24.

[0049] The clamping and fixing assembly 24 includes a clamping plate 241 and a bottom lifting plate 242; the rear end of the clamping plate 241 is fixedly connected to a slider 232; the front end of the bottom lifting plate 242 is fixedly connected to a slider 232 symmetrical to the rear slider 232 in another set of limiting assemblies 23; the bottom lifting plate 242 is fixedly connected to the clamping plate 241 on the side where the two clamping plates 241 are close to each other; the side of the bottom lifting plate 242 away from the clamping plate 241 is provided with an inclined surface to facilitate scooping up the object;

[0050] In this invention, the operator pushes the push plate 214 upwards, causing the push plate 214 to move upwards and push the drive plate 213 along the guide post 211 to compress the drive spring 212. Simultaneously, the two clamping plates 241 are driven to slide outwards along the slide rail 231 via connecting rod 1 221 and connecting rod 222. The operator then places the object to be fired between the two sets of clamping plates 241 and releases the push plate 214. At this point, the drive spring 212 pushes the drive plate 213 back to its original position. Simultaneously, the drive plate 213, through connecting rod 1 221 and connecting rod 222, drives the two clamping plates 241 to lift the object using two bottom lifting plates 242, causing the bottom of the object to detach from the bottom of the cavity. Then, the two clamping plates 241 centrally clamp the object for firing. This achieves central clamping of the object and detaches the bottom of the object from the bottom of the cavity, resulting in a more uniform firing temperature.

[0051] like Figure 2As shown, the simple locking mechanism 3 includes a limiting sliding assembly 31, an abutment sealing assembly 32, and a driving sealing assembly 33; the atmosphere furnace body 1, the abutment sealing assembly 32, and the driving sealing assembly 33 are all connected to the limiting sliding assembly 31; the two sets of limiting sliding assemblies 31 and the two sets of driving sealing assemblies 33 are symmetrically arranged above and below the cavity door; the abutment sealing assembly 32 and the driving sealing assembly 33 are connected; the limiting sliding assembly 31 is used to limit the sliding of the abutment sealing assembly 32, and the abutment sealing assembly 32 is used to seal the door of the atmosphere furnace body 1; the driving sealing assembly 33 is used to drive the abutment sealing assembly 32 to seal.

[0052] The limiting sliding assembly 31 includes a second slide rail 311 and a second slider 312; the second slide rail 311 is fixedly connected to the atmosphere furnace body 1, and the two second sliders 312 are both limited slidingly connected to the second slide rail 311; the second slider 312 is connected to the abutment sealing assembly 32.

[0053] The abutment sealing assembly 32 includes a limiting post 321, a return spring 322, and an abutment plate 323; the front end of each slider 312 is fixedly connected to a limiting post 321, and a return spring 322 is sleeved on the outside of the limiting post 321; the rear end of the return spring 322 is fixedly connected to the slider 312, and the front end of the return spring 322 is fixedly connected to the abutment plate 323; the two abutment plates 323 are symmetrically arranged left and right, and the upper and lower ends of the abutment plates 323 are respectively limited and slidably connected to the two symmetrically arranged limiting posts 321; the limiting post 321 is connected to the drive sealing assembly 33;

[0054] The drive sealing assembly 33 includes a drive pressure plate 331 and a screw 332; a limiting groove is provided on the drive pressure plate 331, and a limiting post 321 is slidably connected to the drive pressure plate 331 through the limiting groove; the screw 332 is threadedly connected to the slide rail 311 at the middle position of the drive pressure plate 331 through a threaded sleeve.

[0055] In this utility model, after the operator closes the cavity door, the slider 312 moves along the slide rail 311 to move the two abutment plates 323 to the front of the left and right ends of the cavity door. Then, the two screws 332 are turned to move backward. At this time, the screws 332 push the drive pressure plate 331 to move backward. The left and right ends of the drive pressure plate 331 drive the abutment plates 323 to slide backward along the limit post 321 to close and seal the cavity door, thus completing the sealing and tight closing of the cavity door.

[0056] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A four-in-one vacuum chamber-type atmosphere furnace, comprising an atmosphere furnace body (1), characterized in that: It also includes a temperature uniform baking mechanism (2) and a simple locking mechanism (3); The atmosphere furnace body (1) is equipped with a temperature uniform baking mechanism (2) for centering and positioning the heated object and removing it from the bottom of the cavity; a temperature uniform baking mechanism (2) is fixedly installed inside each of the four cavities. The atmosphere furnace body (1) is equipped with a simple locking mechanism (3) for convenient sealing of the closed door; a set of simple locking mechanisms (3) is fixedly installed on each cavity door; The four cavities of the atmosphere furnace body (1) are all connected to the rear side of the first pipe (4), and each of the first pipes (4) is fixedly equipped with a solenoid valve (5). The ends of the first pipes (4) away from the cavities are fixedly connected to the input end of the vacuum pump (6) and / or the input end of the gas tank (7). The input end of the vacuum pump (6) and the input end of the gas tank (7) are both fixedly connected with a solenoid valve (5).

2. The four-in-one vacuum chamber-type atmosphere furnace according to claim 1, characterized in that, The uniform temperature baking mechanism (2) includes a centering lifting drive assembly (21), a transmission assembly (22), a limiting assembly (23), and a clamping and fixing assembly (24); the atmosphere furnace body (1) and the transmission assembly (22) are both connected to the centering lifting drive assembly (21); the two sets of transmission assemblies (22) and the limiting assembly (23) are symmetrically arranged front and back; the two sets of clamping and fixing assemblies (24) are symmetrically arranged left and right; the transmission assembly (22) and the clamping and fixing assembly (24) are both connected to the limiting assembly (23); the clamping and fixing assembly (24) is connected to the atmosphere furnace body (1); the centering lifting drive assembly (21) is used to drive the transmission assembly (22); the transmission assembly (22) is used to link the centering lifting drive assembly (21) and the clamping and fixing assembly (24); the limiting assembly (23) is used to limit the clamping and fixing assembly (24), and the clamping and fixing assembly (24) is used to clamp and lift the heated object in the center.

3. The four-in-one vacuum chamber-type atmosphere furnace according to claim 2, characterized in that, The centering lifting drive assembly (21) includes a guide column (211), a drive spring (212), a drive plate (213), and a push plate (214); the upper end of the guide column (211) is fixedly connected to the top of the cavity of the atmosphere furnace body (1); the drive spring (212) is sleeved on the outside of the guide column (211), the upper end of the drive spring (212) is fixedly connected to the top of the cavity of the atmosphere furnace body (1), the lower end of the drive spring (212) is fixedly connected to the drive plate (213), and the lower end of the guide column (211) is limited and slidably connected to the drive plate (213); the push plate (214) is fixedly installed on the lower end of the drive plate (213); the drive plate (213) is connected to the transmission assembly (22).

4. The four-in-one vacuum chamber-type atmosphere furnace according to claim 3, characterized in that, The transmission assembly (22) includes a first connecting rod (221) and a second connecting rod (222); both the first connecting rod (221) and the second connecting rod (222) are hinged to the lower end of the drive plate (213); the first connecting rod (221) and the second connecting rod (222) are symmetrically arranged on the left and right sides of the lower end of the drive plate (213); both the first connecting rod (221) and the second connecting rod (222) are connected to the limiting assembly (23).

5. The four-in-one vacuum chamber-type atmosphere furnace according to claim 4, characterized in that, The limiting component (23) includes a slide rail (231) and a slider (232); the lower end of the slide rail (231) is fixedly connected to the bottom of the cavity; the slide rail (231) and the slider (232) correspond one-to-one and are limited to sliding connection; the two sliders (232) are respectively hinged to the connecting rod (221) and the connecting rod (222); the slider (232) is connected to the clamping and fixing component (24).

6. The four-in-one vacuum chamber-type atmosphere furnace according to claim 5, characterized in that, The clamping and fixing assembly (24) includes a clamping plate (241) and a bottom lifting plate (242); the rear end of the clamping plate (241) is fixedly connected to a slider (232); the front end of the bottom lifting plate (242) is fixedly connected to a slider (232) symmetrical to the rear slider (232) in another set of limiting assemblies (23); the bottom lifting plate (242) is fixedly connected to the clamping plate (241) on the side where the two clamping plates (241) are close to each other; the side of the bottom lifting plate (242) away from the clamping plate (241) is provided with an inclined surface to facilitate scooping up the object.

7. The four-in-one vacuum chamber-type atmosphere furnace according to claim 1, characterized in that, The simple locking mechanism (3) includes a limiting sliding assembly (31), an abutment sealing assembly (32), and a driving sealing assembly (33); the atmosphere furnace body (1), the abutment sealing assembly (32), and the driving sealing assembly (33) are all connected to the limiting sliding assembly (31); the two sets of limiting sliding assemblies (31) and the two sets of driving sealing assemblies (33) are symmetrically arranged above and below the cavity door; the abutment sealing assembly (32) and the driving sealing assembly (33) are connected; the limiting sliding assembly (31) is used to limit the sliding of the abutment sealing assembly (32), and the abutment sealing assembly (32) is used to seal the door of the atmosphere furnace body (1); the driving sealing assembly (33) is used to drive the abutment sealing assembly (32) to seal.

8. The four-in-one vacuum chamber-type atmosphere furnace according to claim 7, characterized in that, The limiting sliding assembly (31) includes a second slide rail (311) and a second slider (312); the second slide rail (311) is fixedly connected to the atmosphere furnace body (1), and the two second sliders (312) are both limited and slidably connected to the second slide rail (311); the second slider (312) is connected to the abutment sealing assembly (32).

9. The four-in-one vacuum chamber-type atmosphere furnace according to claim 8, characterized in that, The abutment sealing assembly (32) includes a limiting post (321), a return spring (322), and an abutment plate (323); the front end of each slider two (312) is fixedly connected to a limiting post (321), and a return spring (322) is sleeved on the outside of the limiting post (321); the rear end of the return spring (322) is fixedly connected to the slider two (312), and the front end of the return spring (322) is fixedly connected to the abutment plate (323). The two abutment plates (323) are symmetrically arranged left and right, and the upper and lower ends of the abutment plates (323) are respectively limited and slidably connected to the two upper and lower symmetrical limiting posts (321); the limiting post (321) is connected to the drive sealing assembly (33).

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