Safe sealing device for high-pressure gas quenching vacuum furnace

Abstract

The utility model discloses a safe sealing device for a high-pressure gas quenching vacuum furnace, relates to the technical field of safe sealing devices for high-pressure gas quenching vacuum furnaces, and solves the problems that if the weight of a sealing cover is too heavy, the sealing cover is difficult to effectively move upwards only by virtue of single matching among a spring, a cross rod, an extrusion block and a bolt, and if only one group of matching structure is arranged, the sealing cover is difficult to move upwards. In order to solve the problems that in the moving process of a sealing cover, the gravity center is unstable, and the like, a supporting frame is included, a lifting mechanism comprises an outer frame and screw rods, lifting blocks are connected to the outer sides of the screw rods in a screwed mode correspondingly, and the outer side surfaces of the sealing cover are fixedly installed at one ends of the lifting blocks correspondingly. The lifting blocks with the outer sides in threaded connection with the lifting blocks can be driven to do lifting motion, when the lifting blocks move upwards, the sealing cover installed at one end is driven to move upwards synchronously, by means of cooperative work of the multiple sets of lifting blocks, the sealing cover can be lifted upwards stably and smoothly, and the lifting process is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of safety sealing devices for high-pressure gas quenching vacuum furnaces, and in particular to a safety sealing device for high-pressure gas quenching vacuum furnaces. Background Technology

[0002] The high-pressure gas quenching vacuum furnace adopts a single horizontal structure, equipped with a graphite heater and a hard graphite felt heat shield, and a high-power quenching fan at the rear. Its system is comprehensive, encompassing the furnace body, vacuum system, water cooling system, gas filling system, start-up system, and relay control system. The equipment features a visual operating interface, making operation convenient and simple, supporting free switching between manual and automatic modes, and enabling fully automatic control. In terms of applications, the high-pressure gas quenching vacuum furnace is mainly suitable for vacuum bright quenching of mold steel, and also excels in vacuum sintering and vacuum brazing of powder metallurgy and other materials such as copper alloys. It is worth mentioning that during operation, the high-pressure gas quenching vacuum furnace typically requires a safety sealing device to ensure the safety of the processing.

[0003] Patent publication number "CN210193936U" discloses a "Safety Sealing Device for a High-Pressure Gas Quenching Vacuum Furnace," comprising a support base. The lower surface of the support base includes a support frame, the top of which is welded to the lower surface of the support base. The upper surface of the support base includes a furnace body, the lower surface of which overlaps with the upper surface of the support base. The upper surface of the support base includes a sealing cover. This safety sealing device for a high-pressure gas quenching vacuum furnace utilizes the interaction of a spring, a crossbar, a pressing block, and a bolt. By tightening the bolt downwards, the spring releases its elastic force, which drives the crossbar upwards. This movement of the crossbar then moves the sealing cover upwards, completing the opening process. This solves the problem of inconvenience caused by the difficulty in opening existing safety sealing devices for high-pressure gas quenching vacuum furnaces.

[0004] The device in the aforementioned patent utilizes the interplay between a spring, a crossbar, a pressing block, and a bolt. By tightening the bolt downwards, the spring releases its elastic force, which in turn moves the crossbar upwards. As the crossbar moves, it causes the sealing cover to move upwards and complete the opening process. However, if the sealing cover is too heavy, this single interplay between the spring, crossbar, pressing block, and bolt will not be sufficient to effectively move it upwards. Furthermore, if only one such interplay structure is used, the sealing cover may experience instability due to uneven force distribution during movement. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a safety sealing device for a high-pressure gas quenching vacuum furnace.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a safety sealing device for a high-pressure gas quenching vacuum furnace, comprising a support frame, a rotating mechanism disposed below the support frame, a lifting mechanism disposed above the support frame, and a control mechanism disposed on one side of the lifting mechanism;

[0009] The lifting mechanism includes an outer frame and a screw. The top ends of the screw are rotatably connected to the top wall of the outer frame. Lifting blocks are screwed onto the outer sides of the screw. A sealing cover is provided above the support frame. The outer surfaces of the sealing cover are fixedly installed at one end of the lifting block.

[0010] By adopting the above technical solution, when multiple sets of screws rotate separately, they can efficiently drive the lifting blocks screwed to them on the outside to move up and down. When the lifting blocks move upward, they can powerfully drive the sealing cover connected to them to move upward synchronously. With the help of multiple sets of lifting blocks working together, the sealing cover can be lifted stably and smoothly, ensuring that the lifting process is stable and reliable. This solves the problem that if the weight of the sealing cover is too large, it is difficult to achieve effective upward movement of the sealing cover by relying solely on the single cooperation between springs, crossbars, extrusion blocks and bolts. In addition, if only one such cooperation structure is set, the sealing cover may become unstable due to uneven force during the movement.

[0011] As a preferred embodiment of the safety sealing device for a high-pressure gas quenching vacuum furnace described in this utility model, the rotating mechanism includes a driving wheel and a driven wheel, with one side of the driven wheel located outside the driving wheel. Toothed belts are wound around the outer sides of the driving wheel and the driven wheel, respectively, and a servo motor is fixedly installed at the bottom end of the driving wheel.

[0012] By adopting the above technical solution, the rotation of the servo motor can effectively drive the drive wheel installed at the output end to rotate, and the rotating drive wheel can effectively drive the toothed belt wound on the outside to rotate. The toothed belt is wound on the outside of the driven wheel, thereby effectively driving the driven wheel to rotate.

[0013] As a preferred embodiment of the safety sealing device for a high-pressure gas quenching vacuum furnace described in this utility model, the furnace body is fixedly installed on the surface of the support frame, the bottom end of the outer frame of the lifting mechanism is fixedly installed on the surface of the support frame, the outer side of the furnace body is located inside the sealing cover, the bottom end of the screw is rotatably connected to the surface and bottom of the support frame, the top end of the driving wheel and the top end of the driven wheel of the rotating mechanism are fixedly installed on the bottom end of the screw, and the bottom end of the servo motor is fixedly installed on the bottom surface of the support frame.

[0014] By adopting the above technical solution, the furnace body can provide a stable protection effect through the sealing cover located on the outside, and the rotating drive wheel and driven wheel can effectively drive the top-mounted screw to rotate.

[0015] As a preferred embodiment of the safety sealing device for a high-pressure gas quenching vacuum furnace described in this utility model, the control mechanism includes a slot and a block. One end of the block is locked onto the bottom wall of the slot, and a base is fixedly installed on the surface of the support frame. The bottom end of the block is rotatably connected to the top surface of the base.

[0016] By adopting the above technical solution, the card block can be effectively disengaged from the slot by rotating it, thereby enabling the device to be opened effectively, and the bottom end of the card block is rotatably connected to the top surface of the base.

[0017] As a preferred embodiment of the safety sealing device for a high-pressure gas quenching vacuum furnace described in this utility model, the slot of the control mechanism is opened on one side surface of the sealing cover of the lifting mechanism, and the support frame surface is provided with a slot that penetrates the interior.

[0018] By adopting the above technical solution, the sealing cover of the lifting mechanism can effectively provide a stable opening position for the slot opened on one side surface.

[0019] As a preferred embodiment of the safety sealing device for a high-pressure gas quenching vacuum furnace described in this utility model, sealing strips are fixedly installed on the inner walls of both sides of the slot, the bottom end of the sealing cover of the lifting mechanism is inserted into the bottom wall of the slot, and the two sides of the sealing cover are respectively attached to the two sides of the sealing strip.

[0020] By adopting the above technical solution, sealing strips are installed on the inner walls of both sides of the slot. The sealing strips are made of high-quality sealing material with good flexibility and resilience. When the sealing cover is closed, the sealing strips fit tightly against the outer bottom of the sealing cover, which can effectively fill the gaps and prevent the intrusion of impurities such as gas and dust. This provides a further and more reliable sealing effect for the outer bottom of the sealing cover, greatly improving the overall sealing performance and ensuring the safety and stability of the equipment during operation.

[0021] (III) Beneficial Effects

[0022] This invention provides a safety sealing device for a high-pressure gas quenching vacuum furnace. It has the following advantages:

[0023] 1. By adding a lifting mechanism, multiple sets of screws can be rotated separately to efficiently drive the lifting blocks connected to them on the outside to move up and down. When the lifting blocks move upward, they can powerfully drive the sealing cover connected to them to move upward synchronously. With the help of multiple sets of lifting blocks working together, the sealing cover can be lifted stably and smoothly, ensuring a smooth and reliable lifting process. This solves the problem that if the weight of the sealing cover is too large, it is difficult to achieve effective upward movement of the sealing cover by relying solely on the single cooperation between springs, crossbars, extrusion blocks and bolts. In addition, if only one such cooperation structure is set, the sealing cover may become unstable due to uneven force during the movement.

[0024] 2. By adding sealing strips, sealing strips are installed on the inner walls of both sides of the slot. The sealing strips are made of high-quality sealing material with good flexibility and resilience. When the sealing cover is closed, the sealing strips fit tightly against the bottom outer side of the sealing cover, which can effectively fill the gaps and prevent the intrusion of impurities such as gas and dust. This provides a further and more reliable sealing effect for the bottom outer side of the sealing cover, greatly improving the overall sealing performance and ensuring the safety and stability of the equipment during operation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 is a schematic diagram of the overall structure of this utility model.

[0027] Figure 2 This is a front view structural diagram of the entire utility model.

[0028] Figure 3 This is a bottom view of the overall structure of this utility model.

[0029] Figure 4 This is a right-side half-sectional view of the overall structure of this utility model.

[0030] Figure 5 This is an enlarged structural diagram of point A of the entire utility model.

[0031] In the diagram, 1. Support frame; 2. Furnace body; 3. Rotating mechanism; 31. Servo motor; 32. Drive wheel; 33. Driven wheel; 34. Toothed belt; 4. Lifting mechanism; 41. Outer frame; 42. Screw; 43. Lifting block; 44. Sealing cover; 5. Control mechanism; 51. Slot; 52. Base; 53. Block; 6. Slot; 7. Sealing strip. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0033] Example 1

[0034] Reference Figures 1 to 5 This is the first embodiment of the present utility model. This embodiment provides a safety sealing device for a high-pressure gas quenching vacuum furnace, including a support frame 1, a rotating mechanism 3 arranged below the support frame 1, a lifting mechanism 4 arranged above the support frame 1, and a control mechanism 5 arranged on one side of the lifting mechanism 4.

[0035] The lifting mechanism 4 includes an outer frame 41 and a screw 42. The top of the screw 42 is rotatably connected to the top wall of the outer frame 41. Lifting blocks 43 are screwed onto the outer side of the screw 42. A sealing cover 44 is provided above the support frame 1. The outer surface of the sealing cover 44 is fixedly installed on one end of the lifting block 43.

[0036] Specifically, the rotating mechanism 3 includes a driving wheel 32 and a driven wheel 33. One side of the driven wheel 33 is located outside the driving wheel 32. Toothed belts 34 are wound around the outside of the driving wheel 32 and the outside of the driven wheel 33 respectively. A servo motor 31 is fixedly installed at the bottom of the driving wheel 32.

[0037] Furthermore, when the lifting mechanism 4 has multiple sets of screws 42 rotating separately, it can efficiently drive the lifting block 43 connected to it on the outside to move up and down. When the lifting block 43 moves upward, it can powerfully drive the sealing cover 44 connected to it to move upward synchronously. With the help of multiple sets of lifting blocks 43 working together, it can ensure that the sealing cover 44 is lifted upward stably and smoothly, and ensure that the lifting process is stable and reliable. The top ends of the screws 42 are respectively rotatably connected to the top wall of the outer frame 41.

[0038] The rotating mechanism 3 can effectively drive the drive wheel 32 installed at the output end to rotate by the rotation of the servo motor 31. The rotating drive wheel 32 can effectively drive the toothed belt 34 wound on the outside to rotate. The toothed belt 34 is wound on the outside of the driven wheel 33, thereby effectively driving the driven wheel 33 to rotate.

[0039] Example 2

[0040] Reference Figures 1 to 5This is the first embodiment of the present invention. This embodiment is based on the previous embodiment. The furnace body 2 is fixedly installed on the surface of the support frame 1. The bottom end of the outer frame 41 of the lifting mechanism 4 is fixedly installed on the surface of the support frame 1. The outer side of the furnace body 2 is located inside the sealing cover 44. The bottom end of the screw 42 is rotatably connected to the surface and bottom of the support frame 1. The top end of the driving wheel 32 and the top end of the driven wheel 33 of the rotating mechanism 3 are fixedly installed on the bottom end of the screw 42. The bottom end of the servo motor 31 is fixedly installed on the bottom surface of the support frame 1. The control mechanism 5 includes a slot 51 and a block 53. One end of the block 53 is locked in the bottom wall of the slot 51. The base 52 is fixedly installed on the surface of the support frame 1. The bottom end of the block 53 is rotatably connected to the top surface of the base 52.

[0041] Specifically, the slot 51 of the control mechanism 5 is opened on one side surface of the sealing cover 44 of the lifting mechanism 4, and the support frame 1 has a slot 6 that penetrates the interior. Sealing strips 7 are fixedly installed on the inner walls of both sides of the slot 6. The bottom end of the sealing cover 44 of the lifting mechanism 4 is inserted into the bottom wall of the slot 6, and the two sides of the sealing cover 44 are respectively attached to the two sides of the sealing strips 7.

[0042] Furthermore, the control mechanism 5 can effectively disengage from the slot 51 by rotating the locking block 53, thereby enabling the device to be opened effectively. The bottom end of the locking block 53 is rotatably connected to the top surface of the base 52, and the bottom surface of the base 52 is mounted on the surface of the support frame 1.

[0043] By installing sealing strips 7 on both sides of the inner wall of the slot 6, the sealing strips 7 are made of high-quality sealing material and have good flexibility and resilience. When the sealing cover 44 is in the closed state, the sealing strips 7 are tightly fitted to the bottom outer side of the sealing cover 44, which can effectively fill the gap and prevent the intrusion of impurities such as gas and dust.

[0044] Working principle: The rotating mechanism 3 can effectively drive the drive wheel 32 installed at the output end to rotate through the rotation of the servo motor 31. The rotating drive wheel 32 can effectively drive the toothed belt 34 wound on the outside to rotate. The toothed belt 34 is wound on the outside of the driven wheel 33, thus effectively driving the driven wheel 33 to rotate. Through the rotation of the drive wheel 32 and the driven wheel 33 respectively, the top end installed on the screw 42 can be effectively driven to rotate.

[0045] When multiple sets of screws 42 rotate separately, the lifting mechanism 4 can efficiently drive the lifting blocks 43 connected to them on the outside to move up and down. When the lifting blocks 43 move upward, they can powerfully drive the sealing cover 44 connected to them to move upward synchronously. With the help of multiple sets of lifting blocks 43 working together, the sealing cover 44 can be lifted upward stably and smoothly, ensuring that the lifting process is stable and reliable. The top ends of the screws 42 are rotatably connected to the top wall of the outer frame 41, and the furnace body 2 can provide a stable protection effect through the sealing cover 44 located on the outside.

[0046] The control mechanism 5 can effectively disengage from the slot 51 by rotating the locking block 53, thereby enabling the device to be opened effectively. The bottom end of the locking block 53 is rotatably connected to the top surface of the base 52, and the bottom surface of the base 52 is mounted on the surface of the support frame 1. The slot 51 is opened on one side surface of the sealing cover 44 of the lifting mechanism 4.

[0047] By installing sealing strips 7 on both sides of the inner wall of the slot 6, the sealing strips 7 are made of high-quality sealing material and have good flexibility and resilience. When the sealing cover 44 is in the closed state, the sealing strips 7 are tightly fitted to the bottom outer side of the sealing cover 44, which can effectively fill the gap and prevent the intrusion of impurities such as gas and dust.

[0048] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A safety sealing device for a high-pressure gas quenching vacuum furnace, comprising a support frame (1), characterized in that: A rotating mechanism (3) is provided below the support frame (1), a lifting mechanism (4) is provided above the support frame (1), and a control mechanism (5) is provided on one side of the lifting mechanism (4); The lifting mechanism (4) includes an outer frame (41) and a screw (42). The top end of the screw (42) is rotatably connected to the top wall of the outer frame (41). Lifting blocks (43) are screwed onto the outer side of the screw (42). A sealing cover (44) is provided above the support frame (1). The outer surface of the sealing cover (44) is fixedly installed on one end of the lifting block (43).

2. The safety sealing device for a high-pressure gas quenching vacuum furnace according to claim 1, characterized in that: The rotating mechanism (3) includes a driving wheel (32) and a driven wheel (33). One side of the driven wheel (33) is located outside the driving wheel (32). Toothed belts (34) are wound around the outside of the driving wheel (32) and the outside of the driven wheel (33). A servo motor (31) is fixedly installed at the bottom of the driving wheel (32).

3. A safety sealing device for a high-pressure gas quenching vacuum furnace according to claim 2, characterized in that: The furnace body (2) is fixedly installed on the surface of the support frame (1). The bottom end of the outer frame (41) of the lifting mechanism (4) is fixedly installed on the surface of the support frame (1). The outer side of the furnace body (2) is located inside the sealing cover (44). The bottom end of the screw (42) is rotatably connected to the surface and bottom of the support frame (1). The top end of the driving wheel (32) and the top end of the driven wheel (33) of the rotating mechanism (3) are fixedly installed on the bottom end of the screw (42). The bottom end of the servo motor (31) is fixedly installed on the bottom surface of the support frame (1).

4. The safety sealing device for a high-pressure gas quenching vacuum furnace according to claim 1, characterized in that: The control mechanism (5) includes a slot (51) and a block (53). One end of the block (53) is placed on the bottom wall of the slot (51). A base (52) is fixedly installed on the surface of the support frame (1). The bottom end of the block (53) is rotatably connected to the top surface of the base (52).

5. A safety sealing device for a high-pressure gas quenching vacuum furnace according to claim 1, characterized in that: The slot (51) of the control mechanism (5) is opened on one side surface of the sealing cover (44) of the lifting mechanism (4), and the support frame (1) has a slot (6) that penetrates the interior.

6. A safety sealing device for a high-pressure gas quenching vacuum furnace according to claim 5, characterized in that: Sealing strips (7) are fixedly installed on the inner walls of both sides of the slot (6). The bottom end of the sealing cover (44) of the lifting mechanism (4) is inserted into the bottom wall of the slot (6). The two sides of the sealing cover (44) are respectively attached to the two sides of the sealing strip (7).

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