Rotary opening and closing cover mechanism for filter

Abstract

The utility model discloses a filter is with rotating open and close cover mechanism relates to filter field, and its technical scheme main points are: its setting on filter jar body is used for rotating open and close to the cover of its bottom, the filter jar body bottom is equipped with the annular clamping groove, and the cover edge is provided with the clamping projection matched with annular clamping groove, and the fixed connection of cover and filter jar body bottom is realized through the cooperation of clamping projection and annular clamping groove, the filter is with rotating open and close cover mechanism and includes two air cylinders, namely locking cylinder and uncovering cylinder, and locking cylinder is used for driving the cover rotation of filter jar body bottom, makes it remove the fixed connection of cover and filter jar body bottom structure, and then is by uncovering cylinder to overturn cover, thereby opens filter jar body bottom, and the effect is through the concerted action of two air cylinders, has realized the efficient, reliable open and close of filter bottom cover.

Description

Technical Field

[0001] This utility model relates to the field of filters, and more specifically, it relates to a rotary opening and closing mechanism for filters. Background Technology

[0002] In industrial production, filters are key equipment for solid-liquid separation and fluid purification, and the opening and closing efficiency of their bottom covers directly affects the ease of maintenance. Existing filter cover opening methods mostly employ manual bolt fastening or simple hinge structures. Manual bolt fastening requires significant manpower and is time-consuming to install and remove; frequent operation can easily damage the threads, making it difficult to guarantee a seal. While simple hinge structures (with simple locking pins or latches) allow for quick opening, they lack reliable locking devices, posing safety hazards and failing to meet the demands of complex operating conditions such as high pressure and high temperature.

[0003] Therefore, in order to solve the above-mentioned technical problems, this application proposes a rotary opening and closing mechanism for a filter. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rotary opening and closing mechanism for a filter.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary opening and closing mechanism for a filter, which is installed on the filter tank and used to rotate and open and close the cover at its bottom. The bottom of the filter tank is provided with an annular groove, and the edge of the cover is provided with a snap-fit ​​protrusion that matches the annular groove. The cover is fixedly connected to the bottom of the filter tank by the cooperation of the snap-fit ​​protrusion and the annular groove. The rotary opening and closing mechanism for a filter includes two cylinders, namely a locking cylinder and an opening cylinder. The locking cylinder is used to drive the cover at the bottom of the filter tank to rotate, thereby releasing the cover from the fixed structure at the bottom of the filter tank. Then, the opening cylinder flips the cover, thereby opening the bottom of the filter tank.

[0006] Preferably, a support frame A is fixedly connected to the outer wall of the filter tank, the opening cylinder is installed on the support frame A, a support frame B is fixedly connected to the lower part of the outer wall of the filter tank, and a rotating frame is rotatably connected to the end of the support frame B, and the head of the rotating frame is connected to the center part of the bottom of the cover. The rotating frame is rotated relative to the support frame A by the action of the opening cylinder.

[0007] Preferably, the locking cylinder is rotatably connected to the side end of the rotating frame.

[0008] Preferably, bearings are installed on the upper and lower parts of the side end of the rotating frame, and a rotating rod is fixedly connected to the inner ring of the bearing. The locking cylinder is installed between the two rotating rods, and the head of the locking cylinder is connected to the bottom surface of the cover through a connector.

[0009] Preferably, the locking cylinder is detachably connected to the rotating rod and the connecting piece, and the cover opening cylinder is detachably connected to the support frame A and the rotating frame.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. This utility model achieves efficient and reliable opening and closing of the filter bottom cover through the coordinated action of two cylinders, effectively solving the inefficiency of the traditional manual bolt fastening method and the safety problems of the simple hinge structure in the background technology.

[0012] 2. When the locking cylinder or the cover opening cylinder malfunctions, this utility model can be quickly disassembled for repair or replacement without the need to disassemble the entire cover opening mechanism. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the specific structure of the side of this utility model;

[0016] Figure 3 This is a schematic diagram of the specific structure of the bottom of this utility model.

[0017] In the diagram: 1. Filter tank; 2. Cover; 3. Locking cylinder; 4. Opening cylinder; 5. Support frame A;

[0018] 6. Support frame B; 7. Rotating frame; 8. Bearing; 9. Rotating rod; 10. Connecting parts. Detailed Implementation

[0019] like Figure 1-3As shown, this utility model provides a rotary opening and closing mechanism for a filter, which is installed on the filter tank 1 and is used to rotate and open and close the cover 2 at its bottom. The bottom of the filter tank 1 is provided with an annular groove, and the edge of the cover 2 is provided with a snap-fit ​​protrusion that matches the annular groove. The cover 2 is fixedly connected to the bottom of the filter tank 1 by the cooperation of the snap-fit ​​protrusion and the annular groove. The rotary opening and closing mechanism for the filter includes two cylinders, namely a locking cylinder 3 and an opening cylinder 4. The locking cylinder 3 is used to drive the cover 2 at the bottom of the filter tank 1 to rotate, so as to release the fixation between the cover 2 and the bottom structure of the filter tank 1. Then, the opening cylinder 4 flips the cover 2, thereby opening the bottom of the filter tank 1.

[0020] When it is necessary to open the cover 2 at the bottom of the filter tank 1, first activate the locking cylinder 3. Its piston rod retracts, causing the locking protrusion on the edge of the cover 2 to disengage from the annular groove at the bottom of the filter tank 1, thus releasing the fixed connection between the two. Next, activate the opening cylinder 4. Its piston rod retracts, causing the cover 2 to rotate around the hinge point, thereby opening the bottom of the filter tank 1. To close the cover 2, the reverse operation is used. First, the piston rod of the opening cylinder 4 extends to reset the cover 2. Then, the extension of the locking cylinder 3 causes the cover 2 to rotate in the opposite direction, causing the locking protrusion to re-engage with the annular groove, completing the sealing and locking of the cover 2 to the bottom of the filter tank 1. The entire process, through the coordinated action of the two cylinders, achieves efficient and reliable opening and closing of the filter bottom cover 2, effectively solving the inefficiency of traditional manual bolt fastening methods and the safety problems of simple hinge structures.

[0021] It should be noted that the snap-fit ​​protrusion and the annular groove cooperate to form circumferential and axial limiting (the depth of the annular groove limits the axial movement of the snap-fit ​​protrusion), and are assisted by a spiral trajectory for self-locking (the inner wall of the groove generally has a spiral guide trajectory, and when the snap-fit ​​protrusion is engaged, it will tighten along the spiral line, similar to the self-locking principle of a bolt tightening into a nut. At this time, the internal pressure or external load of the equipment will further push the snap-fit ​​protrusion and the annular groove to engage tightly, forming a dynamic locking effect of "the more pressure, the tighter it gets," rather than simply relying on friction to maintain fixation), thus achieving a reliable lock on the cover 2. At the same time, the tight engagement between the snap-fit ​​protrusion and the annular groove not only provides mechanical locking force, but also squeezes the sealing ring between the cover 2 and the filter tank 1, causing it to elastically deform and fill the gap, thus meeting the dual requirements of mechanical locking and sealing performance, and maintaining long-term stability under high pressure, high temperature and other working conditions.

[0022] The following is the specific structure of the connection between the locking cylinder 3 and the opening cylinder 4: A support frame A5 is fixedly connected to the outer wall of the filter tank 1. The opening cylinder 4 is installed on the support frame A5. A support frame B6 is fixedly connected to the lower part of the outer wall of the filter tank 1. A rotating frame 7 is rotatably connected to the end of the support frame B6. The head of the rotating frame 7 is connected to the center of the bottom of the cover 2. The opening cylinder 4 acts on the rotating frame 7 to achieve the rotation of the rotating frame 7 relative to the support frame B. The locking cylinder 3 is rotatably connected to the side of the rotating frame 7. Bearings 8 are installed on the upper and lower parts of the side of the rotating frame 7. A rotating rod 9 is fixedly connected to the inner ring of the bearing 8. The locking cylinder 3 is installed between the two rotating rods 9. The head of the locking cylinder 3 is connected to the bottom surface of the cover 2 through the connector 10.

[0023] Startup process:

[0024] Unlocking Phase: The locking cylinder 3 is activated, its piston rod retracts, pulling the bottom surface of the cover 2 via the connector 10, driving the cover 2 to rotate around the central axis of the rotating frame 7 (the rotating rod 9 provides smooth rotation under the support of the inner ring of the bearing 8, i.e., the rotating rod 9 drives the rotation of the inner ring of the bearing 8, and its inner ring rotates along its outer ring). This rotation causes the locking protrusions on the edge of the cover 2 to slide along the spiral trajectory of the annular groove at the bottom of the filter tank 1 until they completely disengage from the annular groove, releasing the mechanical lock.

[0025] Flipping stage: The opening cylinder 4 is activated, and its piston rod retracts, acting on the rotating frame 7 mounted on the support frame B, causing it to flip upwards around the hinge point at the end of the support frame B. Since the head of the rotating frame 7 is connected to the center of the bottom of the cover 2, the cover 2 flips synchronously, realizing the opening of the bottom of the filter tank 1.

[0026] Shutdown process:

[0027] Reset phase: The piston rod of the opening cylinder 4 extends, pushing the rotating frame 7 to flip back to the initial position, causing the cover 2 to fit against the bottom of the filter tank 1.

[0028] Locking stage: The piston rod of the locking cylinder 3 extends and pushes the cover 2 to rotate in the opposite direction through the connector 10, so that the locking protrusion re-engages into the annular groove along the spiral trajectory, forming a reliable circumferential and axial lock.

[0029] The locking cylinder 3 is detachably connected to the rotating rod 9 and the connecting piece 10, and the opening cylinder 4 is detachably connected to the support frame A5 and the rotating frame 7. In this way, when the locking cylinder 3 or the opening cylinder 4 malfunctions, it can be quickly disassembled for repair or replacement without disassembling the entire opening mechanism.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A rotary opening and closing mechanism for a filter, which is disposed on a filter tank (1) for rotating and opening / closing a cover (2) at its bottom, wherein the bottom of the filter tank (1) is provided with an annular groove, and the edge of the cover (2) is provided with a snap-fit ​​protrusion that matches the annular groove, thereby achieving a fixed connection between the cover (2) and the bottom of the filter tank (1) through the cooperation of the snap-fit ​​protrusion and the annular groove, characterized in that: The filter uses a rotary opening and closing mechanism, which includes two cylinders: a locking cylinder (3) and an opening cylinder (4). The locking cylinder (3) drives the cover (2) at the bottom of the filter tank (1) to rotate, thereby releasing the cover (2) from the bottom structure of the filter tank (1). Then, the opening cylinder (4) flips the cover (2) to open the bottom of the filter tank (1).

2. The rotary opening and closing mechanism for a filter according to claim 1, characterized in that: A support frame A (5) is fixedly connected to the outer wall of the filter tank (1). The opening cylinder (4) is installed on the support frame A (5). A support frame B (6) is fixedly connected to the lower part of the outer wall of the filter tank (1). A rotating frame (7) is rotatably connected to the end of the support frame B (6). The head of the rotating frame (7) is connected to the center of the bottom of the cover (2). The rotating frame (7) is rotated relative to the support frame B (6) by the action of the opening cylinder (4).

3. A rotating open and close cover mechanism for a filter according to claim 2, characterized in that: The locking cylinder (3) is rotatably connected to the side end of the rotating frame (7).

4. A rotating open and close cover mechanism for a filter according to claim 3, characterized in that: Bearings (8) are installed on the upper and lower sides of the rotating frame (7), and a rotating rod (9) is fixedly connected to the inner ring of the bearing (8). The locking cylinder (3) is installed between the two rotating rods (9), and the head of the locking cylinder (3) is connected to the bottom surface of the cover (2) through the connector (10).

5. A rotating open and close cover mechanism for a filter according to claim 4, characterized in that: The locking cylinder (3) is detachably connected to the rotating rod (9) and the connecting piece (10), and the opening cylinder (4) is detachably connected to the support frame A (5) and the rotating frame (7).

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