Furnace door unlocking and locking device of vacuum furnace

Abstract

The utility model provides a furnace door unlocking and locking device of a vacuum furnace, which comprises a vacuum furnace, the open end of the vacuum furnace is connected with a furnace door through a hinge, and the vacuum furnace is connected with the furnace door through a locking mechanism; the locking mechanism comprises a locking ring connected to the outer surface of the vacuum furnace in a sliding mode and a power assembly connected with the bottom end of the locking ring. The locking mechanism further comprises a plurality of first locking blocks connected to the inner ring surface of the locking ring, the multiple first locking blocks surround the locking ring and are arranged in an annular array, a linkage sealing assembly is connected to the interior of the locking ring, a second locking block is inserted between every two adjacent first locking blocks, and the linkage sealing assembly is connected to the interior of the second locking block. And the second locking block is connected to the outer surface of the furnace door. The sealing block can be driven through the second rack, and the gap between the second locking block and the first locking block is reduced through movement of the sealing block.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of vacuum furnaces, and in particular to a furnace door unlocking and locking device of a vacuum furnace. Background Art

[0002] The locking device of the vacuum furnace door plays a vital role for a vacuum furnace. It is not only the key to protecting the sealing performance of the vacuum furnace, but also the only guarantee to prevent the furnace door from being opened accidentally.

[0003] According to the pneumatic locking device of a vacuum furnace provided by the patent document with application number CN202321564088.0, the pneumatic locking device includes a vacuum furnace and a furnace door. The end of the vacuum furnace is provided with multiple groups of mounting grooves 1, and pneumatic locks 1 are fixedly arranged in the mounting grooves 1. The end of the furnace door is provided with multiple groups of mounting grooves 2, and pneumatic locks 2 are connected to the inner thread of the mounting grooves 2. The utility model is fixed by setting pneumatic locks 1 and 2 to engage with each other. It only needs to control the operation of the air pump through the controller. The fixing effect of a single pneumatic lock is not as ideal as that of a mechanical lock. However, pneumatic locks 1 and 2 cooperate with each other so that the fixing rod is inserted into the jack of the metal rod. The pneumatic control is combined with the mechanical interlocking method, which is not only simple to operate but also has a good fixing effect. Six groups of pneumatic locks are set in a circle of the furnace door, and the sealing parts of the furnace door and the vacuum furnace can be locked to make the sealing effect of the vacuum furnace better.

[0004] The furnace door unlocking and locking device of a conventional vacuum furnace often achieves the locking of the furnace door by interlocking locking blocks. In this manner, gaps are easily generated as the locking blocks move, thereby affecting the locking and sealing effect of the furnace door. Utility Model Content

[0005] The utility model mainly provides a furnace door unlocking and locking device for a vacuum furnace to solve the technical problems raised in the above background technology.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] A furnace door unlocking and locking device for a vacuum furnace comprises a vacuum furnace, an opening end of the vacuum furnace is connected to a furnace door via a hinge, and the vacuum furnace and the furnace door are connected via a locking mechanism;

[0008] The locking mechanism comprises a locking ring slidably connected to the outer surface of the vacuum furnace, and a power assembly connected to the bottom end of the locking ring;

[0009] The locking mechanism also includes a plurality of first locking blocks connected to the inner ring surface of the locking ring, the plurality of first locking blocks are arranged in a ring array around the locking ring, a linkage sealing assembly is connected to the interior of the locking ring, second locking blocks are inserted between adjacent first locking blocks, and the second locking blocks are connected to the outer surface of the furnace door.

[0010] Furthermore, the power assembly includes a cylinder rotatably connected to the bottom end of the vacuum furnace, a push block connected to one end of the cylinder piston rod, the push block is connected to the cylinder piston rod through a rotating shaft, and the push block is connected to the bottom end of the locking ring.

[0011] Furthermore, the linkage sealing assembly includes a first cavity provided on the first locking block, and a gear is rotatably connected inside the first cavity.

[0012] Furthermore, a plurality of second cavities are provided on the ring body of the locking ring, and the second cavities are communicated with the first cavities.

[0013] Furthermore, a first rack is connected to the cavity of the second cavity, the first rack is connected to the outer surface of the vacuum furnace, and the first rack is meshed with a gear.

[0014] Furthermore, a second rack is slidably connected inside the first cavity, the second rack is meshed with the gear, one end of the second rack is connected to a sealing block, and the sealing block is plugged into the first locking block.

[0015] Furthermore, a guide bar is connected inside the first cavity, and the guide bar is slidably connected to the second rack.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] During the locking process of the furnace door of the utility model, the gear follows the movement of the locking ring, and the gear is meshed with the first rack so that the gear rolls on the first rack to rotate the gear. The rotation of the gear pushes the second rack meshed with the gear, and the sealing block is driven by the second rack to reduce the gap between the second locking block and the first locking block through the movement of the sealing block.

[0018] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a cross-sectional view of a locking ring of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the locking ring of the utility model.

[0022] In the figure: 1, vacuum furnace; 2, furnace door; 3, locking mechanism; 31, locking ring; 311, second cavity; 32, power assembly; 321, cylinder; 322, push block; 33, linkage sealing assembly; 331, first cavity; 332, gear; 333, first rack; 334, second rack; 335, sealing block; 336, guide strip; 34, second locking block; 35, first locking block. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] For examples, please refer to the attached Figure 1-3 , a furnace door unlocking and locking device for a vacuum furnace, comprising a vacuum furnace 1, an opening end of the vacuum furnace 1 is connected to a furnace door 2 via a hinge, and the vacuum furnace 1 and the furnace door 2 are connected via a locking mechanism 3;

[0027] The locking mechanism 3 includes a locking ring 31 slidably connected to the outer surface of the vacuum furnace 1, and a power assembly 32 connected to the bottom end of the locking ring 31;

[0028] The locking mechanism 3 also includes a plurality of first locking blocks 35 connected to the inner ring surface of the locking ring 31. The plurality of first locking blocks 35 are arranged in a ring array around the locking ring 31. The interior of the locking ring 31 is connected to a linkage sealing assembly 33. Second locking blocks 34 are inserted between adjacent first locking blocks 35. The second locking blocks 34 are connected to the outer surface of the furnace door 2.

[0029] For details, please refer to the attached Figure 1 and 2 The power assembly 32 includes a cylinder 321 rotatably connected to the bottom end of the vacuum furnace 1, a push block 322 connected to one end of the piston rod of the cylinder 321, the push block 322 is connected to the piston rod of the cylinder 321 through a rotating shaft, and the push block 322 is connected to the bottom end of the locking ring 31;

[0030] The linkage seal assembly 33 includes a first cavity 331 provided on the first locking block 35, and a gear 332 is rotatably connected inside the first cavity 331;

[0031] It should be noted that, in this embodiment, the piston rod of the cylinder 321 pushes the push block 322, so that the push block 322 pushes the locking ring 31, so that the locking ring 31 rotates on the vacuum furnace 1. In this way, the first locking block 35 on the locking ring 31 and the second locking block 34 on the furnace door 2 are staggered and abutted, so as to achieve the locking of the furnace door 2.

[0032] Furthermore, the gear 332 is accommodated by the first cavity 331 .

[0033] For details, please refer to the attached Figure 1 and 2 The locking ring 31 has a plurality of second cavities 311 on its ring body, and the second cavities 311 are connected to the first cavities 331;

[0034] A first rack 333 is connected to the cavity of the second cavity 311 . The first rack 333 is connected to the outer surface of the vacuum furnace 1 . The first rack 333 is meshed with a gear 332 .

[0035] It should be noted that, in this embodiment, the first rack 333 passes through the opening of the second cavity 311;

[0036] Furthermore, when the gear 332 moves following the locking ring 31 , the gear 332 is meshed with the first rack 333 , so that the gear 332 rolls on the first rack 333 , causing the gear 332 to rotate.

[0037] For details, please refer to the attached Figure 1 and 2A second rack 334 is slidably connected to the interior of the first cavity 331, the second rack 334 is meshed with the gear 332, one end of the second rack 334 is connected to a sealing block 335, and the sealing block 335 is plugged into the first locking block 35;

[0038] A guide bar 336 is connected to the interior of the first cavity 331, and the guide bar 336 is slidably connected to the second rack 334;

[0039] It should be noted that, in this embodiment, the gear 332 rotates, so that the gear 332 pushes the second rack 334 meshing with it, and the sealing block 335 is driven by the second rack 334, so that the gap between the second locking block 34 and the first locking block 35 is reduced through the movement of the sealing block 335.

[0040] The specific operation mode of the utility model is as follows:

[0041] When locking the furnace door 2 of the vacuum furnace, the piston rod of the cylinder 321 pushes the push block 322, so that the push block 322 pushes the locking ring 31, so that the locking ring 31 rotates on the vacuum furnace 1. In this way, the first locking block 35 on the locking ring 31 and the second locking block 34 on the furnace door 2 are staggered and abutted, so as to achieve locking of the furnace door 2;

[0042] During the process of locking the furnace door 2, the gear 332 moves with the locking ring 31, and the gear 332 is engaged with the first rack 333, so that the gear 332 rolls on the first rack 333, and the gear 332 rotates. The rotation of the gear 332 pushes the second rack 334 engaged with it, and the sealing block 335 is driven by the second rack 334, so that the gap between the second locking block 34 and the first locking block 35 is reduced by the movement of the sealing block 335.

[0043] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A vacuum furnace door unlocking and locking device, comprising a vacuum furnace (1), characterized in that: The open end of the vacuum furnace (1) is connected to a furnace door (2) via a hinge, and the vacuum furnace (1) and the furnace door (2) are connected via a locking mechanism (3); The locking mechanism (3) comprises a locking ring (31) slidably connected to the outer surface of the vacuum furnace (1), and a power assembly (32) connected to the bottom end of the locking ring (31); The locking mechanism (3) further comprises a plurality of first locking blocks (35) connected to the inner ring surface of the locking ring (31); the plurality of first locking blocks (35) are arranged in a ring array around the locking ring (31); a linkage sealing assembly (33) is connected to the interior of the locking ring (31); second locking blocks (34) are inserted between adjacent first locking blocks (35); and the second locking blocks (34) are connected to the outer surface of the furnace door (2).

2. The vacuum furnace door unlocking and locking device according to claim 1, characterized in that: The power assembly (32) comprises a cylinder (321) rotatably connected to the bottom end of the vacuum furnace (1), and a push block (322) connected to one end of a piston rod of the cylinder (321); the push block (322) is connected to the piston rod of the cylinder (321) via a rotating shaft, and the push block (322) is connected to the bottom end of the locking ring (31).

3. The vacuum furnace door unlocking and locking device according to claim 1, characterized in that: The linkage sealing assembly (33) comprises a first cavity (331) provided on the first locking block (35), and a gear (332) is rotatably connected inside the first cavity (331).

4. The vacuum furnace door unlocking and locking device according to claim 1, characterized in that: A plurality of second cavities (311) are provided on the ring body of the locking ring (31), and the second cavities (311) are communicated with the first cavities (331).

5. The vacuum furnace door unlocking and locking device according to claim 4, characterized in that: A first rack (333) is connected to the cavity of the second cavity (311), the first rack (333) is connected to the outer surface of the vacuum furnace (1), and the first rack (333) is meshed with a gear (332).

6. The vacuum furnace door unlocking and locking device according to claim 5, characterized in that: A second rack (334) is slidably connected inside the first cavity (331), the second rack (334) is meshed with the gear (332), one end of the second rack (334) is connected to a sealing block (335), and the sealing block (335) is plugged into the first locking block (35).

7. The vacuum furnace door unlocking and locking device according to claim 6, characterized in that: A guide bar (336) is connected to the interior of the first cavity (331), and the guide bar (336) is slidably connected to the second rack (334).

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