Vacuum furnace door locking device

Abstract

A kind of vacuum furnace door locking device, including support frame, a drive piston cylinder is arranged in one side of support frame, drive piston rod extends out drive piston cylinder and is arranged in the end of drive piston rod One hinged fixed rod, the both sides of the hinged fixed rod are slidably arranged on support frame, an active connecting plate is arranged on the hinged fixed rod, a laterally extending fixed clamping hook is arranged on the end of active connecting plate away from drive piston cylinder.The application can improve the stability of its operation process by the form that hinged fixed rod is slidably arranged on support frame, so as to drive active connecting plate by drive piston rod, in turn, fixed clamping hook is locked or opened to vacuum furnace door.

Description

Technical Field

[0001] This application relates to a vacuum furnace door locking device. Background Technology

[0002] A vacuum furnace refers to a furnace that maintains a certain negative pressure within its chamber, resulting in significantly lower energy consumption than conventional furnaces. Due to the substantial pressure difference between the inside and outside of a vacuum furnace, it is generally quite tall. Therefore, a mechanized locking device is required for the vacuum furnace door. Currently, hinged press-fit mechanisms are commonly used; however, these have a narrow range of motion, making them prone to locking during use and potentially hindering the installation and removal of the vacuum furnace door. Therefore, it is necessary to improve existing vacuum furnace door locking mechanisms to ensure both overall structural stability and reliable opening in the future. Utility Model Content

[0003] To address the aforementioned problems, this application proposes a vacuum furnace door locking device, comprising a support frame, a drive piston cylinder on one side of the support frame, a drive piston rod extending out of the drive piston cylinder, and a hinged fixing rod at the end of the drive piston rod. The hinged fixing rod is slidably mounted on the support frame on both sides. A movable connecting plate is sleeved on the hinged fixing rod, and a laterally extending fixing hook is provided at the end of the movable connecting plate away from the drive piston cylinder. This application improves the stability of the operation process by using a hinged fixing rod that slides on the support frame. The drive piston rod drives the movable connecting plate, which in turn drives the fixing hook to lock or open the vacuum furnace door. During use, the continuous force applied by the drive piston cylinder to the drive piston rod ensures the stability of the locking mechanism, and even with some deformation, the movement of the drive piston rod can compensate for the displacement caused by the deformation.

[0004] Preferably, vertically extending through holes are provided on both sides of the support frame corresponding to the hinged fixing rod, and sliding bearings are provided on both sides of the hinged fixing rod. An arc-shaped guide through hole is provided on the side of the vertically extending through hole away from the drive piston cylinder, and the extension direction of the arc-shaped guide through hole is opposite to the extension direction of the fixing hook. This application, through the arrangement of the arc-shaped guide through hole and the vertically extending through hole, allows for positional offset through the arc-shaped guide through hole when opening, thus facilitating the disassembly and assembly of the vacuum furnace door. When tightening, the degree of clamping can be adjusted to a certain extent by adjusting the position of the horizontal guide rod.

[0005] Preferably, a transverse guide rod is provided on the side of the movable connecting plate near the fixed hook, and a guide bearing is provided at the end of the transverse guide rod. The guide bearing is configured to cooperate with the vertically extending through hole and the arc-shaped guide through hole.

[0006] Preferably, the transverse guide rod is disposed through the movable connecting plate or is provided independently on both sides of the movable connecting plate.

[0007] Preferably, the fixing hook includes an inclined connecting plate, and a transverse pressing plate is provided at the end of the inclined connecting plate.

[0008] Preferably, a fixing block is provided on the downward side of the horizontal pressure plate.

[0009] Preferably, a hinged connecting block is provided at the end of the drive piston rod, and an arc-shaped groove is provided on one side of the movable connecting plate corresponding to the hinged connecting block. The hinged fixing rod moves through the movable connecting plates and the hinged connecting block on both sides of the arc-shaped groove. This application achieves a more compact structure by using the hinged connecting block to rotate hingedly within the arc-shaped groove. The drive is achieved by converting the reciprocating pushing force into the reciprocating pushing of the movable connecting plate through the internal hinged fixing rod.

[0010] Preferably, the support frame is a U-shaped bracket, the drive piston cylinder is disposed on the outer side of the base plate of the U-shaped bracket, and the drive piston rod passes through the base plate of the U-shaped bracket and extends between the two side plates of the U-shaped bracket. The support frame of this application adopts the form of a U-shaped bracket, combined with the connection method of arc-shaped guide holes and vertically extending through holes disposed on the side plates, resulting in a compact structure and good stability.

[0011] Preferably, the movable connecting plate is disposed between the two side plates of the U-shaped bracket.

[0012] Preferably, the two sides of the hinged fixing rod are slidably mounted on the two side plates of the U-shaped bracket.

[0013] Preferably, an external connecting plate is provided between the two side plates of the U-shaped bracket.

[0014] This application can bring the following beneficial effects: 1. This application improves the stability of operation by using a hinged fixed rod that slides on the support frame. This drives the movable connecting plate via the drive piston rod, which in turn locks or opens the vacuum furnace door. During use, the continuous force applied by the drive piston cylinder to the drive piston rod ensures the stability of the locking. Even if there is some deformation, the movement of the drive piston rod can compensate for the displacement caused by the deformation.

[0015] 2. This application uses an arc-shaped guide through hole and a vertically extending through hole to allow for positional shifting when the door is opened, thus facilitating the disassembly and assembly of the vacuum furnace door. When tightening, the tightness can be adjusted to a certain extent by adjusting the position of the horizontal guide rod.

[0016] 3. This application uses a hinged connecting block to rotate within an arc-shaped groove, resulting in a more compact structure. The drive is achieved by converting the reciprocating thrust into the reciprocating push of the movable connecting plate through an internal hinged fixing rod. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of this application.

[0018] Figure 2 This is a structural diagram from another perspective of this application.

[0019] Figure 3 This is a side view of this application.

[0020] Figure 4 This is the main view of this application. Detailed Implementation

[0021] To clearly illustrate the technical features of this solution, the following detailed description, in conjunction with the accompanying drawings, will be provided.

[0022] In the first embodiment, such as Figure 1 As shown, a vacuum furnace door locking device includes a support frame 1, a drive piston cylinder 2 is provided on one side of the support frame 1, a drive piston rod 3 extends out of the drive piston cylinder 2 and a hinged fixing rod 4 is provided at the end of the drive piston rod 3, the two sides of the hinged fixing rod 4 are slidably arranged on the support frame 1, a movable connecting plate 5 is sleeved on the hinged fixing rod 4, and a fixing hook 6 extending in one direction is provided at the end of the movable connecting plate 5 away from the drive piston cylinder 2.

[0023] In use, the drive piston rod 3 extends or retracts under the action of the drive piston cylinder 2, and then drives the hinged fixing rod 4. The two sides of the hinged fixing rod 4 slide on the support frame 1, and drive the movable connecting plate 5 to feed, so that the fixing hook 6 is pressed down when it is down and opened when it is up.

[0024] In the second embodiment, as Figure 1-4 As shown, a vacuum furnace door locking device includes a support frame 1, a drive piston cylinder 2 is provided on one side of the support frame 1, a drive piston rod 3 extends out of the drive piston cylinder 2 and a hinged fixing rod 4 is provided at the end of the drive piston rod 3, the two sides of the hinged fixing rod 4 are slidably arranged on the support frame 1, a movable connecting plate 5 is sleeved on the hinged fixing rod 4, and a fixing hook 6 extending in one direction is provided at the end of the movable connecting plate 5 away from the drive piston cylinder 2.

[0025] Vertically extending through holes 7 are provided on both sides of the support frame 1 corresponding to the hinged fixing rod 4. Sliding bearings 8 are provided on both sides of the hinged fixing rod 4. An arc-shaped guide through hole 9 is provided on the side of the vertically extending through hole 7 away from the drive piston cylinder 2, and the extension direction of the arc-shaped guide through hole 9 is opposite to the extension direction of the fixing hook 6. A transverse guide rod 10 is provided on the side of the movable connecting plate 5 near the fixing hook 6, and a guide bearing 11 is provided at the end of the transverse guide rod 10. The guide bearing 11 cooperates with the vertically extending through hole 7 and the arc-shaped guide through hole 9. The transverse guide rod 10 is either inserted through the movable connecting plate 5 or independently provided on both sides of the movable connecting plate 5. By sliding the hinged fixing rod 4 on the support frame 1, the stability of its operation is improved, thereby driving the movable connecting plate 5 through the drive piston rod 3, which in turn drives the fixing hook 6 to lock or open the vacuum furnace door.

[0026] The fixing hook 6 includes an inclined connecting plate 12, and a transverse downward pressure plate 13 is provided at the end of the inclined connecting plate 12. A fixing block 14 is provided on the downward-facing side of the transverse downward pressure plate 13. The transverse downward pressure plate 13 combined with the fixing block 14 can provide a seal when pressure is applied.

[0027] A hinged connecting block 15 is provided at the end of the driving piston rod 3. An arc-shaped groove 16 is provided on one side of the movable connecting plate 5 corresponding to the hinged connecting block 15. The hinge fixing rod 4 moves through the movable connecting plates 5 and the hinged connecting block 15 on both sides of the arc-shaped groove 16. The hinged connecting block 15 rotates hingedly within the arc-shaped groove 16, resulting in a more compact structure. The drive is achieved by converting the reciprocating pushing force into the reciprocating pushing of the movable connecting plate 5 through the internal hinge fixing rod 4.

[0028] The support frame 1 is a U-shaped bracket 17. The drive piston cylinder 2 is located on the outside of the base plate 18 of the U-shaped bracket 17. The drive piston rod 3 passes through the base plate 18 of the U-shaped bracket 17 and extends between the two side plates 19 of the U-shaped bracket 17. The movable connecting plate 5 is located between the two side plates 19 of the U-shaped bracket 17. The hinged fixing rod 4 is slidably mounted on both sides of the two side plates 19 of the U-shaped bracket 17. The support frame 1 adopts the form of a U-shaped bracket 17, combined with the connection method of the arc-shaped guide through hole 9 and the vertically extending through hole 7 located on the side plates 19, resulting in a compact structure and good stability. An outer connecting plate 20 is provided between the two side plates 19 of the U-shaped bracket 17.

[0029] In use, the drive piston rod 3 extends or retracts under the action of the drive piston cylinder 2, and then drives the hinged fixing rod 4. The two sides of the hinged fixing rod 4 slide on the arc-shaped guide through hole and the vertical extension through hole 7 on the side plate 19 of the U-shaped bracket 17, and drive the movable connecting plate 5 to feed. At the same time, the horizontal guide rod also slides on the arc-shaped guide through hole and the vertical extension through hole 7, which makes its own structure more stable. During the action of the drive piston rod 3, the fixed hook 6 presses the vacuum furnace door when it is down and opens when it is up. During the opening process, the arc-shaped guide through hole will cause lateral displacement.

[0030] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A vacuum furnace door locking device, characterized in that: The device includes a support frame, a drive piston cylinder on one side of the support frame, a drive piston rod extending out of the drive piston cylinder and a hinged fixing rod at the end of the drive piston rod, the two sides of the hinged fixing rod being slidably mounted on the support frame, a movable connecting plate being sleeved on the hinged fixing rod, and a fixing hook extending in one direction being provided at the end of the movable connecting plate away from the drive piston cylinder.

2. The vacuum furnace door locking device as described in claim 1, characterized in that: Vertically extending through holes are provided on both sides of the support frame corresponding to the hinged fixing rod. Sliding bearings are provided on both sides of the hinged fixing rod. An arc-shaped guide through hole is provided on the side of the vertically extending through hole away from the drive piston cylinder. The extension direction of the arc-shaped guide through hole is opposite to the extension direction of the fixing hook.

3. The vacuum furnace door locking device as described in claim 2, characterized in that: A horizontal guide rod is provided on the side of the movable connecting plate near the fixed hook, and a guide bearing is provided at the end of the horizontal guide rod. The guide bearing is configured to cooperate with the vertically extending through hole and the arc-shaped guide through hole.

4. The vacuum furnace door locking device as described in claim 3, characterized in that: The transverse guide rod is either installed through the movable connecting plate or is installed independently on both sides of the movable connecting plate.

5. A vacuum furnace door locking device as described in claim 1, characterized in that: The fixing hook includes an inclined connecting plate, and a horizontal pressing plate is provided at the end of the inclined connecting plate.

6. A vacuum furnace door locking device as described in claim 5, characterized in that: A fixing block is provided on the downward side of the horizontal pressure plate.

7. A vacuum furnace door locking device as described in claim 1, characterized in that: A hinged connecting block is provided at the end of the driving piston rod, and an arc-shaped groove is provided on one side of the movable connecting plate corresponding to the hinged connecting block. The hinged fixing rod moves through the movable connecting plates and the hinged connecting block on both sides of the arc-shaped groove.

8. A vacuum furnace door locking device as described in claim 1, characterized in that: The support frame is a U-shaped bracket, the drive piston cylinder is located on the outside of the bottom plate of the U-shaped bracket, and the drive piston rod passes through the bottom plate of the U-shaped bracket and extends between the two side plates of the U-shaped bracket.

9. A vacuum furnace door locking device as described in claim 8, characterized in that: The movable connecting plate is positioned between the two side plates of the U-shaped bracket; The hinged fixing rod is slidably mounted on the two side plates of the U-shaped bracket.

10. A vacuum furnace door locking device as described in claim 8, characterized in that: An external connecting plate is installed between the two side plates of the U-shaped bracket.

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