Furnace door pneumatic locking mechanism of horizontal graphitization furnace

Abstract

The utility model relates to the technical field of graphitization furnace equipment, in particular to a furnace door pneumatic locking mechanism of a horizontal graphitization furnace, which specifically comprises a furnace door hinged at the end part of a furnace body, a locking ring rotatably mounted at the end part of the furnace body, and a locking cylinder for pushing the locking ring to rotate, locking buckle plates are installed on the side wall, close to the furnace door, of the locking ring in a circumferential array shape, locking blocks in one-to-one correspondence with the locking buckle plates are installed on the furnace door, and when the locking ring rotates in the first direction, the locking blocks can be inserted into the locking buckle plates and pressed by the locking buckle plates. According to the utility model, through the matching of the locking ring and the locking block which do circular motion, the furnace door is uniformly stressed in the circumferential direction, and local stress concentration is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of graphitization furnace equipment, specifically a pneumatic locking mechanism for the furnace door of a horizontal graphitization furnace. Background Technology

[0002] Traditional graphitization furnace door locking mechanisms often employ manual bolt tightening or direct cylinder tightening, which suffers from inconvenient operation, uneven tightening force, and unstable sealing performance. Especially under high-temperature operating environments, the furnace door is prone to thermal deformation leading to seal failure, impacting production efficiency and product quality. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model provides a pneumatic locking mechanism for the furnace door of a horizontal graphitization furnace, specifically achieved through the following technical solution:

[0004] A pneumatic locking mechanism for the furnace door of a horizontal graphitization furnace includes a furnace door hinged to the end of the furnace body. A locking ring that can rotate is also installed at the end of the furnace body. The mechanism also includes a locking cylinder that pushes the locking ring to rotate. Locking plates are installed in a circumferential array on the side wall of the locking ring near the furnace door. Locking blocks that correspond one-to-one with the locking plates are installed on the furnace door. When the locking ring rotates in a first direction, the locking blocks can be inserted into the locking plates and pressed by the locking plates.

[0005] A limit ring is fixedly installed at the end of the furnace body, and the locking ring is located on the side of the limit ring away from the furnace door. A guide wheel that rolls with the limit ring is installed on the locking plate.

[0006] The axis of the guide wheel is parallel to the projection of the axis of the furnace body onto the same plane.

[0007] The locking plate includes a detachable connection part to the locking ring. A locking part is fixedly installed on the connection part away from the locking ring. The side wall of the locking part facing the locking ring is an inclined third guide part. The locking block is provided with a first guide part that matches the third guide part.

[0008] The first end of the first guide portion is provided with a second guide portion.

[0009] One end of the locking cylinder is hinged to the furnace body, and the other end is connected to the locking ring drive.

[0010] The other end of the locking cylinder is hinged to the third hinge seat fixedly installed on the locking ring.

[0011] There are two locking cylinders, arranged in a centrally symmetrical manner.

[0012] The furnace body is hinged to the first end of the first connecting frame via the second connecting frame, and the second end of the first connecting frame is hinged to the furnace door.

[0013] The furnace body is equipped with several support legs.

[0014] The technical solution of this utility model has the following advantages:

[0015] When the pneumatic locking mechanism is in operation, two cylinders extend synchronously, pushing the locking ring to move in a circular motion along the bearing-supported track. The locking ring drives the locking plate fixed on the furnace door to move, gradually engaging with the inclined locking block fixed on the furnace body. As the engagement depth increases, the inclined structure generates a radial force, pressing the furnace door tightly against the furnace body sealing surface.

[0016] When the furnace door needs to be opened, the cylinder retracts synchronously, and the locking ring moves in the opposite direction, causing the locking plate to disengage from the inclined surface of the locking block, thus releasing the furnace door.

[0017] The locking force can be controlled by adjusting the cylinder pressure to adapt to different operating conditions. The beveled angle design ensures that the sealing force automatically increases when the pressure inside the furnace increases, preventing leakage.

[0018] The coordinated action of a circularly moving locking ring and multiple inclined locking blocks ensures uniform circumferential force distribution on the furnace door, preventing localized stress concentration. The inclined structure design automatically enhances the sealing effect as internal pressure increases, creating a "tighter under pressure" seal. Pneumatic control enables one-button operation, significantly reducing worker workload. The bearing-supported locking ring moves smoothly, reducing mechanical wear and extending service life. Multi-point progressive locking compensates for thermal deformation of the furnace door and body, maintaining a good seal. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure at point B;

[0023] Figure 4 for Figure 1Schematic diagram of the structure at point A;

[0024] Figure 5 Schematic diagram of the locking plate Figure 1 ;

[0025] Figure 6 Schematic diagram of the locking plate Figure 2 ;

[0026] In the diagram, 1-furnace body, 2-furnace door, 3-first hinge seat, 4-first connecting frame, 5-second hinge seat, 6-second connecting frame, 7-limiting plate, 8-limiting hole, 9-limiting seat, 10-edge, 11-locking block, 1101-first guide part, 1102-second guide part, 12-locking ring, 13-locking cylinder, 14-support leg, 15-locking bolt, 16-semi-ring body, 17-reinforcing plate, 18-locking buckle plate, 19-limiting ring, 20-third hinge seat, 21-piston, 22-fourth hinge seat, 23-connecting part, 24-locking part, 25-internal threaded hole, 26-limiting bolt, 27-third guide part, 28-guide wheel. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] As attached Figure 1 and attached Figure 2 As shown, this utility model provides a pneumatic locking mechanism for the furnace door of a horizontal graphitization furnace, including a furnace door 2 hinged to the end of the furnace body 1, and a rotatable locking ring 12 installed at the end of the furnace body 1.

[0032] The furnace body 1 is equipped with four support legs 14. Of course, the number of support legs 14 can be more, and the specific number is designed according to specific needs.

[0033] In this embodiment, the furnace body 1 is cylindrical.

[0034] The axis of the locking ring 12 coincides with the axis of the furnace body 1, and the locking ring 12 can rotate around the axis of the furnace body 1.

[0035] A number of locking plates 18 are fixedly installed on the locking ring 12 in a circumferential array, and locking blocks 11 corresponding to the locking plates 18 are fixedly installed on the furnace door 2. When the furnace door 2 is closed, the locking ring 12 is rotated, and the locking blocks 11 are inserted into the locking plates 18 and squeezed by the locking plates 18, thereby completing the sealing of the furnace door 2.

[0036] For details, see attached. Figure 1 and attached Figure 2 As shown, a second connecting frame 6 is fixedly installed at the end of the furnace body 1. A second hinge seat 5 is installed at the upper and lower parts of the second connecting frame 6. The two second hinge seats 5 are respectively hinged to the two ends of the first rotating shaft. The first rotating shaft is fixed at the first end of the first connecting frame 4.

[0037] Bushings are fixedly installed on the upper and lower parts of the second end of the first connecting frame 4. Each bushing is hinged to the corresponding second rotating shaft. The second rotating shaft is installed on the furnace door 2 through the corresponding first hinge seat 3.

[0038] As attached Figure 1 and attached Figure 3 As shown, a ring-shaped limiting ring 19 is fixedly installed at the end of the furnace body 1. The axis of the limiting ring 19 coincides with the axis of the furnace body 1, and the locking ring 12 is located on the side of the limiting ring 19 away from the furnace door 2.

[0039] As attached Figure 3 and attached Figure 5 As shown, the locking plate 18 is mounted on the side wall of the locking ring 12 near the limiting ring 19 via a limiting bolt 26. That is, after the limiting bolt 26 passes through the locking ring 12, it engages with the internal threaded hole 25 provided on the locking plate 18.

[0040] As attached Figure 5 and attached Figure 6 As shown, the locking plate 18 includes a connecting portion 23 and a locking portion 24 fixedly installed at the first end of the connecting portion 23; the extending direction of the locking portion 24 is perpendicular to the extending direction of the connecting portion 23, that is, the locking portion 24 extends toward the axis of the furnace body 1. The aforementioned internal threaded hole 25 is opened at the second end of the connecting portion 23, that is, the end away from the locking portion 24.

[0041] A mounting hole is provided in the middle of the connecting part 23, and a guide wheel 28 is installed in the mounting hole. The axis of the guide wheel 28 is parallel to the projection of the axis of the furnace body 1 in the same plane. The guide wheel 28 can rotate around its own axis in the mounting hole.

[0042] The guide wheel 28 rolls with the outer wall of the limiting ring 19.

[0043] The side wall of the locking part 24 facing the locking ring 12 is an inclined third guide part 27.

[0044] The locking ring 12 is also fixedly connected to the first end of the third hinge seat 20. The second end of the third hinge seat 20 is hinged to the piston 21 of the locking cylinder 13. The cylinder body of the locking cylinder 13 is hinged to the fourth hinge seat 22, which is mounted on the furnace body 1. The locking ring 12 rotates as the piston 21 of the locking cylinder 13 extends or retracts.

[0045] The locking cylinder 13 and the guide wheel 28 work together to limit the locking ring 12. Of course, the locking ring 12 can also be installed on the furnace body 1 by means of bearings or other methods.

[0046] The locking cylinder 13 is located on the side of the locking ring 12 away from the locking buckle plate 18.

[0047] like Figure 3 As shown, the locking ring 12 is formed by splicing two semi-ring bodies 16, with a reinforcing plate 17 provided at the connection point of the two semi-ring bodies 16. There are two reinforcing plates 17, and the connection point of the two semi-ring bodies 16 is located between the two reinforcing plates 17. The reinforcing plates 17 and the semi-ring bodies 16 are connected by locking bolts 15. That is, the locking bolts 15 pass through the two reinforcing plates 17 and the corresponding semi-ring bodies 16, and then nuts are installed to lock the entire structure.

[0048] The locking block 11 is fixedly installed on the edge 10 of the furnace body 1, and the first side wall of the locking block 11 is an inclined first guide portion 1101, which matches the third guide portion 27; that is, after the locking block 11 is inserted into the locking buckle plate 18, the third guide portion 27 fits against the first guide portion 1101 and squeezes the first guide portion 1101.

[0049] The first end of the first guide portion 1101, that is, the end into which the locking plate 18 is first inserted, is provided with a second guide portion 1102. The tilt direction of the second guide portion 1102 is the same as the tilt direction of the first guide portion 1101, but the tilt angle of the second guide portion 1102 is greater than the tilt angle of the first guide portion 1101.

[0050] As attached Figure 5 and attached Figure 6 As shown, one of the limiting bolts 26 passes through the guide wheel 28, that is, the guide wheel 28 is fitted on one of the limiting bolts 26.

[0051] In this embodiment, there are two drive components consisting of locking cylinder 13 and third hinge seat 20, which are arranged in a centrally symmetrical manner.

[0052] In this embodiment, furnace doors 2 are installed at both ends of the furnace body 1.

[0053] Although in this embodiment the locking cylinder 13 is installed on the furnace body 1, the locking cylinder 13 can also be installed in other positions, as long as it can push the locking ring 12 to rotate stably.

[0054] In use, when the furnace door 2 is closed, the locking cylinder 13 activates, pushing the locking ring 12 to rotate in the first direction, causing the locking block 11 to insert into the locking plate 18. As the locking ring 12 continues to rotate, the locking plate 18 exerts pressure on the locking block 11, completing the locking and sealing of the furnace door 2. When it is necessary to open the furnace door 2, the locking cylinder 13 activates, pushing the locking ring 12 to rotate in the second direction, disengaging the locking plate 18 from the locking block 11, and then the furnace door 2 is opened. The second direction is opposite to the first direction.

[0055] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A pneumatic locking mechanism for the furnace door of a horizontal graphitization furnace, characterized in that, The furnace includes a furnace door (2) hinged to the end of the furnace body (1). The end of the furnace body (1) is also equipped with a rotatable locking ring (12). The furnace also includes a locking cylinder (13) that pushes the locking ring (12) to rotate. The locking ring (12) is equipped with locking plates (18) in a circular array on the side wall near the furnace door (2). The furnace door (2) is equipped with locking blocks (11) that correspond one-to-one with the locking plates (18). When the locking ring (12) rotates in the first direction, the locking blocks (11) can be inserted into the locking plates (18) and pressed by the locking plates (18).

2. The pneumatic locking mechanism for the furnace door of the horizontal graphitization furnace according to claim 1, characterized in that, A limiting ring (19) is fixedly installed at the end of the furnace body (1). The locking ring (12) is located on the side of the limiting ring (19) away from the furnace door (2). A guide wheel (28) that rolls with the limiting ring (19) is installed on the locking plate (18).

3. The pneumatic locking mechanism for the furnace door of the horizontal graphitization furnace according to claim 2, characterized in that, The axis of the guide wheel (28) is parallel to the projection of the axis of the furnace body (1) in the same plane.

4. The pneumatic locking mechanism for the furnace door of the horizontal graphitization furnace according to claim 1, characterized in that, The locking plate (18) includes a connecting part (23) that is detachably connected to the locking ring (12). A locking part (24) is fixedly installed on the connecting part (23) away from the locking ring (12). The side wall of the locking part (24) facing the locking ring (12) is an inclined third guide part (27). The locking block (11) is provided with a first guide part (1101) that matches the third guide part (27).

5. The pneumatic locking mechanism for the furnace door of the horizontal graphitization furnace according to claim 4, characterized in that, The first end of the first guide portion (1101) is provided with a second guide portion (1102).

6. The pneumatic locking mechanism for the furnace door of the horizontal graphitization furnace according to claim 1, characterized in that, One end of the locking cylinder (13) is hinged to the furnace body (1), and the other end is driven to the locking ring (12).

7. The pneumatic locking mechanism for the furnace door of the horizontal graphitization furnace according to claim 6, characterized in that, The other end of the locking cylinder (13) is hinged to the third hinge seat (20) fixedly installed on the locking ring (12).

8. The pneumatic locking mechanism for the furnace door of the horizontal graphitization furnace according to claim 6, characterized in that, There are two locking cylinders (13), which are arranged in a centrally symmetrical manner.

9. The pneumatic locking mechanism for the furnace door of the horizontal graphitization furnace according to claim 1, characterized in that, The furnace body (1) is hinged to the first end of the first connecting frame (4) via the second connecting frame (6), and the second end of the first connecting frame (4) is hinged to the furnace door (2).

10. The pneumatic locking mechanism for the furnace door of the horizontal graphitization furnace according to claim 1, characterized in that, The furnace body (1) is equipped with several support legs (14).

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