Vacuum furnace locking device

Abstract

The utility model provides a vacuum furnace locking device, which belongs to the field of vacuum furnace locking and comprises a vacuum furnace body, a connecting piece is mounted at the front end of the vacuum furnace body, and a sealing component is mounted at the front end of the connecting piece. The connecting piece comprises a fixing ring, the fixing ring is installed at the front end of the vacuum furnace body, the front end of the fixing ring is fixedly connected with a plurality of clamping plates which are arranged at equal intervals, and through holes are formed in the front ends of the clamping plates; the sealing assembly comprises a cover body, a groove block, a lead screw, a thread sleeve, a connecting rod and a short column, the groove block is installed at the outer end of the cover body, the groove block is matched with the clamping plate, the clamping plate and the groove block are connected, the lead screw is rotated, the lead screw drives the thread sleeve to move, the thread sleeve drives the connecting rod to move, the angle of the connecting rod is changed under the influence of the short column, and then the short column is driven to move; the short columns are folded inwards by the groove blocks and penetrate through the through holes in the front ends of the clamping plates, so that the cover body and the fixing ring are connected and locked, and the vacuum furnace body is locked.

Description

Technical Field

[0001] The utility model relates to the field of vacuum furnace locking, in particular to a vacuum furnace locking device. Background Art

[0002] A vacuum heat treatment furnace is a facility that uses a vacuum state to perform heat treatment on parts. The vacuum heat treatment furnace has high thermal efficiency and can achieve rapid heating and cooling in the furnace body. During the operation of the vacuum heat treatment furnace, the workpiece is heated and cooled in an ultra-low pressure space, so the thermal efficiency is relatively high. In addition, the vacuum heat treatment furnace has the advantages of good quality, energy saving, safety and less pollution. Therefore, it is widely used in the workpiece processing and production process. During the workpiece processing process of the vacuum heat treatment furnace, the sealing and safety requirements of the equipment are relatively high. Therefore, a vacuum furnace cover is often required to seal the furnace body. In the traditional processing process, the locking between the vacuum furnace cover and the vacuum furnace body is mostly bolted. This connection method is relatively complicated and the vacuum furnace cover is inconvenient to disassemble and install.

[0003] The Chinese patent authorization announcement number: CN202320805041.2 provides a vacuum furnace cover locking device. When the vacuum furnace cover is overlapped on the vacuum furnace body, the clamping cylinder pushes the connecting block to rise, and the connecting block slides in the mounting seat, driving the pressing block connected to the mounting seat to rotate and press down, and the bottom of the pressing block is close to the upper part of the vacuum furnace cover. The upper cover body of the vacuum furnace cover is pressed by the pressing block to tighten the vacuum furnace cover, so that the vacuum furnace cover is locked on the vacuum furnace body, replacing the traditional bolts to fix and lock the vacuum furnace cover. The operation is convenient. When disassembling the vacuum furnace cover, several clamping cylinders retreat, the bottom of the pressing block retreats, and the staff disassembles the vacuum furnace cover. However, when locking or disassembling, each cylinder needs to be operated, which is not convenient to achieve synchronous operation. Moreover, since each cylinder is a separate individual, if there is a difference in stroke, it may affect the sealing.

[0004] Therefore, it is necessary to provide a vacuum furnace locking device to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a vacuum furnace locking device.

[0006] The utility model provides a vacuum furnace locking device, comprising a vacuum furnace body, a connecting piece is installed at the front end of the vacuum furnace body, and a sealing assembly is installed at the front end of the connecting piece; the connecting piece comprises a fixing ring, the fixing ring is installed at the front end of the vacuum furnace body, the front end of the fixing ring is fixedly connected with a plurality of equidistantly arranged clamping plates, and the front end of the clamping plates is provided with a through hole; the sealing assembly comprises a cover body, a slot block, a screw rod, a screw sleeve, a connecting rod and a short column, the slot block is installed at the outer end of the cover body, the slot block is adapted to the clamping plate, the screw rod is installed at the front side of the cover body, the screw rod is rotatably connected to the cover body, the screw sleeve is installed at the outer end of the screw rod, the screw sleeve is adapted to the screw rod, the connecting rod is installed at the outer side of the screw sleeve, the connecting rod is hinged to the screw sleeve, the short column is installed at one end of the connecting rod away from the screw sleeve, the short column is hinged to the connecting rod, the short column passes through the slot block and the through hole, the short column is slidably connected to the slot block, and the short column is adapted to the through hole.

[0007] Preferably, the outer end of the screw sleeve is fixedly connected to a plurality of large hinged joints which are arranged at equal distances, and the inner end of the large hinged joint is rotatably connected to the connecting rod.

[0008] Preferably, one end of the connecting rod away from the large hinged joint is rotatably connected to a small hinged joint, and one end of the small hinged joint away from the connecting rod is fixedly connected to the short column.

[0009] Preferably, there are multiple slot blocks which are arranged equidistantly, and the connecting rods are adapted to the slot blocks.

[0010] Preferably, the front end of the cover body is fixedly connected with a sleeve block, the sleeve block is rotatably connected with a rotating block inside, the front end of the rotating block is fixedly connected with a screw rod, and the screw rod passes through the front end of the sleeve block.

[0011] Preferably, a knob is fixedly connected to the front end of the screw rod.

[0012] Compared with the related art, the vacuum furnace locking device provided by the utility model has the following beneficial effects:

[0013] 1. A locking device for a vacuum furnace, which connects a clamping plate with a slot block, rotates a knob, the knob drives a screw rod to rotate, the screw rod drives a screw sleeve to move, the screw sleeve drives a connecting rod to move, the connecting rod is affected by a short column to change its angle, and then drives the short column to move, the short column is retracted inward by the slot block, and the short column passes through a through hole at the front end of the clamping plate, so that the cover body is connected and locked with a fixing ring, thereby locking the vacuum furnace body.

[0014] 2. A locking device for a vacuum furnace, which facilitates the rotation between the screw sleeve and the connecting rod through a large hinge joint, and facilitates the rotation between the connecting rod and the short column through a small hinge joint, so that the user can lock or release the cover body and the fixing ring at will, the knob facilitates the user to operate the screw to rotate, and the sleeve block and the rotating block cooperate to facilitate the rotation of the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall split structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the sealing assembly structure of the utility model;

[0018] Figure 4 It is a partially enlarged structural schematic diagram of the sealing component of the utility model;

[0019] Numbers in the figure: 1, vacuum furnace body; 2, connecting part; 3, sealing assembly; 201, fixing ring; 202, clamping plate; 301, cover body; 302, sleeve block; 303, rotating block; 304, screw rod; 305, knob; 306, screw sleeve; 307, large hinge head; 308, slot block; 309, short column; 310, small hinge head; 311, connecting rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4The embodiment of the utility model provides a vacuum furnace locking device, comprising a vacuum furnace body 1, a connecting piece 2 is installed at the front end of the vacuum furnace body 1, and a sealing assembly 3 is installed at the front end of the connecting piece 2; the connecting piece 2 comprises a fixing ring 201, the fixing ring 201 is installed at the front end of the vacuum furnace body 1, and the front end of the fixing ring 201 is fixedly connected with a plurality of equidistantly arranged clamping plates 202, and the front end of the clamping plates 202 is provided with a through hole; the sealing assembly 3 comprises a cover body 301, a slot block 308, a screw rod 304, a screw sleeve 306, a connecting rod 311 and a short column 309, the slot block 308 is installed at the outer end of the cover body 301, the The slot block 308 is adapted to the clamping plate 202, the screw rod 304 is installed on the front side of the cover body 301, the screw rod 304 is rotatably connected to the cover body 301, the screw sleeve 306 is installed on the outer end of the screw rod 304, the screw sleeve 306 is adapted to the screw rod 304, the connecting rod 311 is installed on the outer side of the screw sleeve 306, the connecting rod 311 is hinged to the screw sleeve 306, the short column 309 is installed at one end of the connecting rod 311 away from the screw sleeve 306, the short column 309 is hinged to the connecting rod 311, the short column 309 passes through the slot block 308 and the through hole, the short column 309 is slidably connected to the slot block 308, and the short column 309 is adapted to the through hole;

[0022] By connecting the clamping plate 202 with the slot block 308, the screw rod 304 is rotated, the screw rod 304 drives the screw sleeve 306 to move, the screw sleeve 306 drives the connecting rod 311 to move, the connecting rod 311 is affected by the short column 309 and the angle changes, thereby driving the short column 309 to move, the short column 309 is retracted inward by the slot block 308, and the short column 309 passes through the through hole at the front end of the clamping plate 202, so that the cover body 301 is connected and locked with the fixing ring 201, thereby locking the vacuum furnace body 1.

[0023] The outer end of the screw sleeve 306 is fixedly connected to a plurality of large hinged joints 307 arranged at equal distances, and the inner end of the large hinged joint 307 is rotatably connected to the connecting rod 311;

[0024] The large hinge joint 307 facilitates the rotation between the screw sleeve 306 and the connecting rod 311.

[0025] One end of the connecting rod 311 away from the large hinged joint 307 is rotatably connected to the small hinged joint 310, and one end of the small hinged joint 310 away from the connecting rod 311 is fixedly connected to the short column 309;

[0026] The small hinge joint 310 facilitates the rotation between the connecting rod 311 and the short column 309.

[0027] The number of the slot blocks 308 is plural and they are arranged at equal distances, and the connecting rod 311 is adapted to the slot blocks 308 .

[0028] The front end of the cover body 301 is fixedly connected with a sleeve block 302 , and the sleeve block 302 is rotatably connected with a rotating block 303 . The front end of the rotating block 303 is fixedly connected with a screw rod 304 , and the screw rod 304 passes through the front end of the sleeve block 302 .

[0029] The front end of the screw rod 304 is fixedly connected with a knob 305;

[0030] The knob 305 allows the user to operate the screw rod 304 to rotate, and the sleeve block 302 cooperates with the rotating block 303 to facilitate the rotation of the screw rod 304 .

[0031] When working, connect the clamping plate 202 with the slot block 308, turn the knob 305, the knob 305 drives the screw rod 304 to rotate, the screw rod 304 drives the screw sleeve 306 to move, the screw sleeve 306 drives the connecting rod 311 to move, the connecting rod 311 is affected by the short column 309 to change its angle, and then drives the short column 309 to move, the short column 309 is retracted inward by the slot block 308, and the short column 309 passes through the through hole at the front end of the clamping plate 202, so that the cover body 301 and the fixed The ring 201 is connected and locked, thereby locking the vacuum furnace body 1, wherein the large hinge head 307 facilitates the rotation between the screw sleeve 306 and the connecting rod 311, and the small hinge head 310 facilitates the rotation between the connecting rod 311 and the short column 309, so that the user can lock or release the cover body 301 and the fixing ring 201 at will, the knob 305 facilitates the user to operate the screw rod 304 for rotation, and the sleeve block 302 cooperates with the rotating block 303 to facilitate the rotation of the screw rod 304.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used 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. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A vacuum furnace locking device, characterized in that: It comprises a vacuum furnace body (1), a connecting piece (2) is installed at the front end of the vacuum furnace body (1), and a sealing component (3) is installed at the front end of the connecting piece (2); The connecting member (2) comprises a fixing ring (201), the fixing ring (201) being mounted on the front end of the vacuum furnace body (1), the front end of the fixing ring (201) being fixedly connected to a plurality of equidistantly arranged clamping plates (202), the front end of the clamping plates (202) being provided with through holes; The sealing assembly (3) comprises a cover body (301), a groove block (308), a screw rod (304), a screw sleeve (306), a connecting rod (311) and a short column (309), wherein the groove block (308) is mounted on the outer end of the cover body (301), the groove block (308) is adapted to the clamping plate (202), the screw rod (304) is mounted on the front side of the cover body (301), the screw rod (304) is rotatably connected to the cover body (301), the screw sleeve (306) is mounted on the outer end of the screw rod (304), and the The screw sleeve (306) is matched with the screw rod (304), the connecting rod (311) is installed on the outer side of the screw sleeve (306), the connecting rod (311) is hinged with the screw sleeve (306), the short column (309) is installed at one end of the connecting rod (311) away from the screw sleeve (306), the short column (309) is hinged with the connecting rod (311), the short column (309) passes through the slot block (308) and the through hole, the short column (309) is slidably connected with the slot block (308), and the short column (309) is matched with the through hole.

2. A vacuum furnace locking device according to claim 1, characterized in that: The outer end of the screw sleeve (306) is fixedly connected to a plurality of large hinged joints (307) arranged at equal distances, and the inner end of the large hinged joint (307) is rotatably connected to the connecting rod (311).

3. A vacuum furnace locking device according to claim 2, characterized in that: One end of the connecting rod (311) away from the large hinged joint (307) is rotatably connected to a small hinged joint (310), and one end of the small hinged joint (310) away from the connecting rod (311) is fixedly connected to a short column (309).

4. A vacuum furnace locking device according to claim 1, characterized in that: The number of the slot blocks (308) is multiple and they are arranged at equal distances, and the connecting rod (311) is adapted to the slot blocks (308).

5. The vacuum furnace locking device according to claim 1, characterized in that: The front end of the cover body (301) is fixedly connected to a sleeve block (302), the sleeve block (302) is rotatably connected to a rotating block (303) inside, the front end of the rotating block (303) is fixedly connected to a screw rod (304), and the screw rod (304) passes through the front end of the sleeve block (302).

6. A vacuum furnace locking device according to claim 5, characterized in that: The front end of the screw rod (304) is fixedly connected with a knob (305).

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