Quick discharge mechanism and plate-and-frame filter press

Abstract

The present application relates to the field of unloading mechanism, especially to a kind of quick unloading mechanism and plate-and-frame filter press, comprising: multiple filter plates, multiple connecting hooks and opening and closing mechanism. Connecting hook is arranged between any two adjacent filter plates, and the rotating end of the connecting hook is rotatably connected with one of the two adjacent separation shafts. The inner side wall of the hooking end of the connecting hook is slidably arranged on the other of the two adjacent separation shafts. By the limitation of the connecting hook, the separation and closure of all filter plates can be realized in the one-way (separation direction or closing direction) movement of the opening and closing mechanism. Therefore, since the time wasted by the opening and closing mechanism is reduced, the work efficiency can be greatly improved. At the same time, since the number of times of the opening and closing mechanism is reduced, the wear of the parts in the opening and closing mechanism can be reduced, and the service life of the equipment can be improved.

Description

Technical Field

[0001] This invention relates to the field of unloading mechanisms, and more particularly to a rapid unloading mechanism and a plate and frame filter press. Background Technology

[0002] Plate and frame filter press is a common solid-liquid separation device in chemical production. Under pressure, it separates solids and liquids using filter frames and filter plates. Generally, the filtrate is discharged using a closed-flow drainage method. After the filter is pressed, the material falls off the filter plates and enters the receiving device, and is then collected by the receiving device before entering the next process.

[0003] Existing plate and frame filter presses unload material by pulling apart the filter plates one by one using a robotic arm. After unloading, the filter plates are pulled back to their preset positions for the next filtration operation. Because there are many filter plates in a filter press, this method of unloading by pulling apart each plate individually increases the unloading cycle, severely impacting work efficiency. Furthermore, during a single unloading operation, the robotic arm that moves the filter plates undergoes multiple reciprocating movements. This accelerates the wear and tear on the components within the robotic arm, thereby reducing the equipment's lifespan. Summary of the Invention

[0004] In view of this, the present invention provides a rapid unloading mechanism and a plate and frame filter press, which at least partially solves the problems existing in the prior art.

[0005] According to one aspect of the present invention, a rapid unloading mechanism is provided, comprising:

[0006] Multiple filter press plates are slidably mounted on the same slide rail, and a separation shaft is fixedly mounted on the side wall of each filter press plate.

[0007] Multiple connecting hooks are provided, one connecting hook between every two adjacent separating shafts. Each connecting hook has a rotating end and a hooking end, wherein the rotating end is rotatably connected to one of the two adjacent separating shafts. The inner wall of the hooking end is slidably disposed on the other of the two adjacent separating shafts.

[0008] The opening and closing mechanism is connected to the edge filter press plate and is designed to drive the edge filter press plate to slide along the slide rail. The edge filter press plate is the outermost filter press plate among multiple filter press plates;

[0009] The opening and closing mechanism includes a hydraulic cylinder, a push plate, and a thrust plate; multiple filter plates are sandwiched between the push plate and the thrust plate.

[0010] The thrust plate is fixedly mounted on the slide rail;

[0011] The push plate is slidably mounted on the slide rail, and the push plate is connected to the edge filter plate near the hydraulic cylinder.

[0012] The movable end of the hydraulic cylinder is fixedly connected to the push plate to drive the push plate closer to or away from the thrust plate.

[0013] In this invention, the connecting hook is further provided with a sliding groove. A shock-absorbing mechanism is disposed within the sliding groove. The shock-absorbing mechanism includes:

[0014] The impact block is slidably set in the groove.

[0015] An elastic element is provided, one end of which is fixedly mounted on the first inner wall surface, which is the inner wall surface of the slide groove near the hook end. The elastic element is used to push the shock block along the slide groove in a direction away from the first inner wall surface.

[0016] The opening and closing block is slidably mounted on the shock-absorbing block. The opening and closing block is provided with a sliding tip.

[0017] A closing plate is disposed on the first inner wall surface, and the closing plate is provided with a closing ramp, on which a sliding tip is slidably disposed. This drives the closing block to slide within the impact block.

[0018] The stop tooth is rotatably positioned at the end of the opening / closing block furthest from the shock block.

[0019] Impact plate, installed on the side wall of filter press plate, is used to absorb the impact of impact blocks.

[0020] In this invention, the rotating part of the stop tooth is further provided with a first limiting ratchet.

[0021] The opening and closing block is provided with a second limiting ratchet, which is located on the rotation path of the first limiting ratchet to limit the rotation angle of the stop tooth.

[0022] In this invention, the sliding direction of the groove is further perpendicular to the sliding direction of the opening and closing block in the shock block.

[0023] In this invention, the shock block further includes:

[0024] The slider body has a sliding end and an impact end, with the sliding end slidably disposed within a groove. The opening / closing block is slidably disposed on the sliding end.

[0025] The impact column is fixedly installed at the impact end. The distance between the impact surface of the impact column and the blocking surface of the stop tooth is greater than the diameter of the separation shaft.

[0026] In this invention, a portion of the cross-section of the separating shaft is further configured as a rectangular cross-section. This rectangular cross-section is used to contact the blocking surface of the retaining teeth.

[0027] In this invention, furthermore, a portion of the cross-section of the separating shaft is configured as an arc-shaped cross-section. The arc-shaped cross-section is positioned opposite to the rectangular cross-section.

[0028] The arc-shaped cross section is used to contact the clearance surface of the stop tooth, which is the surface of the stop tooth that is opposite to the blocking surface.

[0029] In this invention, the installation spacing of any two adjacent connecting hooks is different, and the installation spacing is the distance between the connecting hook and the side wall of the filter press plate.

[0030] In this invention, the elastic element is further defined as a spring.

[0031] According to another aspect of the present invention, a plate and frame filter press is also provided, including the aforementioned rapid unloading mechanism.

[0032] The present invention has at least the following beneficial effects:

[0033] In this invention, a connecting hook is provided between any two adjacent filter plates, and the rotating end of the connecting hook is rotatably connected to one of the two adjacent separation shafts; the inner sidewall of the hook end of the connecting hook is slidably disposed on the other of the two adjacent separation shafts.

[0034] When the opening and closing mechanism moves the edge filter press plates in the separation direction, causing multiple filter press plates to be separated from each other, the working process is as follows: As the distance between two filter press plates gradually increases, the connecting hook rotates counterclockwise under its own weight, so that the inner wall (lower edge) of the connecting hook always abuts against the adjacent separation shaft. Furthermore, as the distance between two filter press plates gradually increases, the adjacent separation shaft gradually slides into the hook end of the connecting hook. At this time, the hook end will hook the adjacent separation shaft, and then, driven by the hook end, the filter press plate will move in the separation direction. Thus, multiple filter press plates can be separated sequentially, thereby achieving the separation of all filter press plates.

[0035] When the opening and closing mechanism moves the edge filter press plates in the pressing direction, so that multiple filter press plates are in a mutually closed state, the working process is as follows: As the distance between two filter press plates gradually decreases, the connecting hook rotates clockwise under the constraint of the adjacent separation shaft, so that the adjacent separation shaft gradually disengages from the hook end of the connecting hook. Furthermore, two adjacent filter press plates gradually approach and press together. This causes multiple filter press plates to close sequentially, thereby achieving the closure of all filter press plates.

[0036] In summary, by using the connecting hooks, the separation and closure of all filter plates can be achieved during a single unidirectional movement (separation or closing) of the opening and closing mechanism. This significantly improves operational efficiency by reducing the time wasted on the reciprocating motion of the opening and closing mechanism. Furthermore, reducing the number of reciprocating motions also reduces wear on the components within the mechanism, thereby extending the equipment's lifespan. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a partial structural schematic diagram of a plate and frame filter press according to one embodiment of this application.

[0039] Figure 2 This is a schematic diagram of the structure between the impact mechanism and the filter plate of a rapid unloading mechanism in another embodiment of this application.

[0040] Figure 3 This is an exploded structural diagram of the shock-absorbing mechanism and the connecting hook in another embodiment of this application.

[0041] Figure 4 This is an exploded structural diagram of the shock block, opening and closing block and the stop tooth in another embodiment of this application.

[0042] Figure 5 This is a cross-sectional schematic diagram of a rapid unloading mechanism when the filter plate moves along the separation direction in another embodiment of this application.

[0043] Figure 6 for Figure 5 The method structure diagram at point A.

[0044] Figure 7 This is a cross-sectional schematic diagram of a rapid unloading mechanism when the filter plate moves along the separation direction and the sliding tip contacts the opening and closing inclined surface, according to another embodiment of this application.

[0045] Figure 8 for Figure 7 The method structure diagram at point B.

[0046] Figure 9 This is a cross-sectional schematic diagram of a rapid unloading mechanism in another embodiment of this application, where the filter plate moves in the closed direction and the stop teeth avoid the separation shaft.

[0047] Figure 10 for Figure 9 The method structure diagram at point C.

[0048] Figure 11 This is a schematic diagram of the connection structure between the stop tooth and the opening / closing block in another embodiment of this application.

[0049] Figure Labels

[0050] 1. Filter press plate; 11. Impact plate; 12. Separating shaft; 2. Connecting hook; 21. Hook end; 22. Rotating end; 23. Slide groove; 24. Opening and closing plate; 3. Vibration block; 31. Sliding block body; 32. Vibration column; 4. Stop tooth; 41. First limiting ratchet; 5. Opening and closing block; 51. Sliding tip; 52. Second limiting ratchet; 6. Spring; 71. Hydraulic cylinder; 72. Push plate; 73. Thrust plate; 8. Slide rail. Detailed Implementation

[0051] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0052] It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. Furthermore, all other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0053] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this disclosure, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0054] According to one aspect of the invention, such as Figures 1 to 4 As shown, a rapid unloading mechanism is provided, comprising:

[0055] Multiple filter press plates 1 are slidably mounted on the same slide rail 8, and a separation shaft 12 is fixedly mounted on the side wall of each filter press plate 1.

[0056] Multiple connecting hooks 2 are provided, one connecting hook 2 between every two adjacent separating shafts 12. Each connecting hook 2 has a rotating end 22 and a hooking end 21, wherein the rotating end 22 is rotatably connected to one of the two adjacent separating shafts 12. The inner wall of the hooking end 21 is slidably disposed on the other of the two adjacent separating shafts 12. A torsion spring is provided between the rotating end 22 and the separating shaft 12 rotatably connected to it. Through the elastic force of the torsion spring, the inner wall of the hooking end 21 can be more tightly pressed against the other of the two adjacent separating shafts 12.

[0057] The opening and closing mechanism is connected to the edge filter press plate and is configured to drive the edge filter press plate to slide along the slide rail 8. The edge filter press plate is the outermost filter press plate 1 among multiple filter press plates 1.

[0058] The opening and closing mechanism includes a hydraulic cylinder 71, a push plate 72, and a thrust plate 73. The push plate 72 and the thrust plate 73 are arranged at intervals relative to each other in the opening and closing direction of the filter press plate 1. The thrust plate 73 can be welded to the frame of the filter press to limit the movement of the second edge filter press plate. The second edge filter press plate is the edge filter press plate located at the rearmost end.

[0059] The hydraulic cylinder 71 can also be fixed on the frame of the filter press, and the movable end of the hydraulic cylinder 71 is connected to the push plate 72, which is connected to the first edge filter plate, which is the edge filter plate located at the foremost end. Thus, by extending and retracting the movable end, the first edge filter plate can be moved in the opening and closing direction, thereby causing multiple filter plates 1 to separate and close.

[0060] From the first edge filter plate to the second edge filter plate, the multiple filter plates 1 sandwiched between the first edge filter plate and the second edge filter plate are sequentially named as the first filter plate, the second filter plate, the third filter plate, the fourth filter plate, the fifth filter plate, ... the Nth filter plate. N is a positive integer.

[0061] Based on the above naming rules, the working principle of each filter press plate 1 in this embodiment when separating and closing is described as follows:

[0062] When the opening and closing mechanism moves the first edge filter press plate in the separation direction, causing multiple filter press plates 1 to be in a separated state, the working process is as follows: As the first edge filter press plate moves, the distance between the first edge filter press plate and the first filter press plate gradually increases. During this process, the connecting hook 2 rotates counterclockwise under its own gravity, so that the inner wall (lower edge) of the connecting hook 2 always abuts against the separation shaft 12 of the first filter press plate. Furthermore, as the distance between the first edge filter press plate and the first filter press plate gradually increases, the separation shaft 12 of the first filter press plate gradually slides into the hook end 21 of the connecting hook 2. After the hook end 21 hooks the separation shaft 12 of the first filter press plate, the first filter press plate will also move in the separation direction under the drive of the hook end 21. At this time, the second filter press plate and the first filter press plate will repeat the above separation process to achieve separation between the first filter press plate and the second filter press plate. Similarly, the separation process of each subsequent filter press plate 1 is the same.

[0063] Therefore, as the opening and closing mechanism drives the first edge filter plate to gradually move in the separation direction, multiple filter plates 1 can be separated in sequence, thereby achieving the separation of all filter plates 1.

[0064] When the opening and closing mechanism moves the edge filter press plates in the pressing direction, so that multiple filter press plates 1 are in a closed state, the working process is as follows: As the first edge filter press plate moves, the distance between the first edge filter press plates and the first filter press plates gradually decreases. Under the restriction of the separation shaft 12 of the first filter press plate, the connecting hook 2 rotates clockwise, so that the separation shaft 12 of the first filter press plate gradually disengages from the hook end 21 of the connecting hook 2, thereby releasing the restriction of the hook end 21 on the separation shaft 12 of the first filter press plate. At the same time, the first edge filter press plates gradually approach and press together to complete the closing work of the first edge filter press plate and the first filter press plate. Similarly, the closing process of each subsequent filter press plate 1 is the same as above. Thus, as the opening and closing mechanism moves the first edge filter press plate gradually in the closing direction, it can drive multiple filter press plates 1 to close sequentially, thereby realizing the closure of all filter press plates 1.

[0065] In summary, by restricting the movement of the connecting hook 2, all filter plates 1 can be separated and closed during a single unidirectional (separation or closing) movement of the opening and closing mechanism. This significantly improves operational efficiency by reducing the time wasted on the reciprocating motion of the opening and closing mechanism. Furthermore, reducing the number of reciprocating motions also reduces wear on the components within the mechanism, thereby extending the equipment's lifespan.

[0066] As one possible embodiment of the present invention, such as Figure 2-10 As shown, a groove 23 is provided on the connecting hook 2. A shock-absorbing mechanism is provided in the groove 23. The groove 23 is provided along the length direction of the connecting hook 2 and extends through the upper and lower surfaces of the connecting hook 2. The inner wall surface of the groove 23 near the hook end 21 is the first inner wall surface. The inner wall surface of the groove 23 near the rotating end 22 is the second inner wall surface.

[0067] The impact mechanism includes:

[0068] The shock block 3 is slidably disposed in the slide groove 23. The shock block 3 can slide along the slide groove 23.

[0069] An elastic element is provided, with one end fixedly mounted on the first inner wall surface. The elastic element is used to push the impact block 3 along the slide groove 23 in a direction away from the first inner wall surface. Preferably, the elastic element is a spring 6. To increase the moving speed of the impact block 3, the number of springs 6 can be increased. Specifically, multiple springs 6 can be provided on the first inner wall surface.

[0070] The opening / closing block 5 is slidably mounted on the shock-absorbing block 3. The opening / closing block 5 is provided with a sliding tip 51. Preferably, the sliding direction of the groove 23 is perpendicular to the sliding direction of the opening / closing block 5 in the shock-absorbing block 3.

[0071] A closing plate 24 is disposed on the first inner wall surface, and a closing ramp is provided on the closing plate 24. A sliding tip 51 is slidably disposed on the closing ramp to drive the closing block 5 to slide in the impact block 3.

[0072] The stop tooth 4 is rotatably positioned at the end of the opening / closing block 5 away from the shock block 3. Preferably, as shown... Figure 4 and Figure 11 As shown, the rotating part of the stop tooth 4 is provided with a first limiting ratchet 41. The opening / closing block 5 is provided with a second limiting ratchet 52, which is positioned along the rotation path of the first limiting ratchet 41 to limit the rotation angle of the stop tooth 4. Thus, the stop tooth 4 can be limited to rotating only counterclockwise. Figure 5 and Figure 6 As shown, when the separation shaft 12 on the right side of the figure moves in the separation direction, it will drive the connecting hook 2 to move in the separation direction as well. Correspondingly, the separation shaft 12 on the left side of the figure moves in the opposite separation direction (X direction) relative to the connecting hook 2. During this process, the stop tooth 4 will abut against one side of the separation shaft 12 and move in the Y direction under the drive of the separation shaft 12 on the left side.

[0073] like Figure 9 and Figure 10 As shown, when the separating shaft 12 on the right side of the figure moves in the closing direction, it will drive the connecting hook 2 to move in the closing direction. Correspondingly, the separating shaft 12 on the left side of the figure moves in the opposite closing direction (W direction) relative to the connecting hook 2. During this process, the clearance surface of the stop tooth 4 first contacts the separating shaft 12 on the left side, and under the push of the separating shaft 12 on the left side, the stop tooth 4 rotates counterclockwise (Z direction). As a result, the stop tooth 4 will retract into the slide groove 23. At this time, there is no mutual restriction between the separating shaft 12 on the left side and the stop tooth 4, so the separating shaft 12 on the left side can move freely. After the separating shaft 12 on the left side passes the stop tooth 4, the stop tooth 4 rotates clockwise back to the initial position. Thus, when the separating shaft 12 on the left side moves in the closing direction next time, the stop tooth 4 can smoothly abut against one side of the separating shaft 12 on the left side. In this embodiment, the separating shaft 12 on the left side is the separating shaft 12 that is always abutted against the inner sidewall (lower edge) of the connecting hook 2, that is, the separating shaft located on the left side in the figure.

[0074] Impact plate 11 is disposed on the side wall of filter press plate 1 and is used to receive the impact of impact block 3.

[0075] In this embodiment, when each filter plate 1 is in a separated state, taking the first filter plate and the second filter plate as examples, the working principle is introduced as follows:

[0076] As the distance between the first and second filter plates gradually increases, the separating shaft 12 of the second filter plate moves from the rotating end 22 of the connecting hook 2 to the hook end 21. During this movement, the separating shaft 12 of the second filter plate drives the shock block 3 to move closer to the first inner wall surface via the stop tooth 4. Simultaneously, the shock block 3 gradually compresses the spring 6 to store energy during this movement. In this embodiment, the separating shaft 12 is the one that abuts against the inner wall (lower edge) of the connecting hook 2, i.e., the separating shaft located on the left side in the figure. Furthermore, as the shock block 3 moves, the sliding tip 51 of the opening / closing block 5 slidably disposed in the shock block 3 contacts the opening / closing inclined surface, such as... Figure 7 and Figure 8 As shown, it slides along the opening and closing inclined plane. During the sliding process, since the sliding tip 51 has a component velocity consistent with the sliding direction (Q direction) of the opening and closing block 5, the opening and closing block 5 will slide along the slide in the impact block 3 to the side away from the separation shaft 12. As a result, the stop tooth 4 will also move to the side away from the separation shaft 12. During this process, the contact area between the blocking surface of the stop tooth 4 and the separation shaft 12 becomes smaller and smaller. When the contact area between the blocking surface of the stop tooth 4 and the separation shaft 12 is zero, the stop tooth 4 is released from the restriction of the separation shaft 12, and the compressed spring 6 immediately releases its stored energy, thereby pushing the impact block 3 to move quickly along the slide groove 23 to the side of the first inner wall, so that the impact block 3 impacts the impact plate 11. Through this impact, the filter plate 1 can produce a slight vibration, which can further shake off the residual mud material attached to the pressure plate, so as to make the unloading more complete and thorough and improve the unloading effect. To improve the vibration effect, the impact plate 11 can be set at the corner of the filter press plate 1, so that the filter press plate 1 is more likely to vibrate after impact.

[0077] As one possible embodiment of the present invention, the shock block 3 includes:

[0078] The slider body 31 has a sliding end and an impact end, with the sliding end slidably disposed in the groove 23. The opening / closing block 5 is slidably disposed on the sliding end. A shock-absorbing column 32 is fixedly disposed on the impact end. The distance from the impact surface of the shock-absorbing column 32 to the blocking surface of the stop tooth 4 is greater than the diameter of the separation shaft 12. Preferably, the distance from the impact surface of the shock-absorbing column 32 to the blocking surface of the stop tooth 4 is greater than twice the diameter of the separation shaft 12.

[0079] In this embodiment, the distance between the impact surface of the shock column 32 and the blocking surface of the stop tooth 4 is greater than the diameter of the separation shaft 12. Therefore, even if the shock column 32 is in complete contact with the impact plate 11, there will be enough space for the stop tooth 4 to rotate freely so as to return to the initial position normally.

[0080] Specifically, when the impact column 32 is in complete contact with the impact plate 11, as the separation shaft 12 moves in the closing direction, the clearance surface of the stop tooth 4 first contacts the separation shaft 12, and under the push of the separation shaft 12, the stop tooth 4 rotates counterclockwise. As a result, the stop tooth 4 retracts into the slide groove 23. At this time, there is no mutual restriction between the separation shaft 12 and the stop tooth 4, so the separation shaft 12 can move freely. After the separation shaft 12 passes the stop tooth 4, a large space is still reserved, ensuring that there is no obstruction between the stop tooth 4 and the separation shaft 12. Ultimately, the stop tooth 4 can smoothly rotate back to its initial position in the clockwise direction, so that when the separation shaft 12 moves in the closing direction, it again abuts against one side of the separation shaft 12.

[0081] In one possible embodiment of the present invention, a portion of the cross-section of the separating shaft 12 is configured as a rectangular cross-section. This rectangular cross-section is used to contact the blocking surface of the stop tooth 4. Further, a portion of the cross-section of the separating shaft 12 is configured as an arc-shaped cross-section. The arc-shaped cross-section is positioned opposite to the rectangular cross-section. This arc-shaped cross-section is used to contact the clearance surface of the stop tooth 4, which is the surface of the stop tooth 4 that is opposite to the blocking surface. Preferably, the cross-section of the separating shaft 12 can be a semi-circular cross-section.

[0082] In this embodiment, when the rectangular cross-section contacts the blocking surface of the stop tooth 4, it is a contact between two planes. Therefore, when the contact area between the rectangular cross-section and the blocking surface is zero, that is, when the contact area between the blocking surface of the stop tooth 4 and the separation shaft 12 is zero, the stop tooth 4 can more smoothly disengage from the restriction of the separation shaft 12. During disengagement, the stop tooth 4 is only subjected to the elastic force of the spring 6, thus ensuring that the shock block 3 moves smoothly along the slide groove 23. Furthermore, there will be no force components in other directions, thus preventing the shock block 3 from impacting other parts of the slide groove 23 during movement. The arc-shaped cross-section is used to contact the clearance surface of the stop tooth 4. Therefore, during the contact process between the stop tooth 4 and the arc-shaped cross-section, the stop tooth 4 can smoothly rotate counterclockwise and retract into the slide groove 23.

[0083] In this invention, the installation spacing between any two adjacent connecting hooks 2 is different, and the installation spacing is the distance between the connecting hook 2 and the side wall of the filter press plate 1. This allows multiple connecting hooks 2 to be arranged in an alternating manner, avoiding interference between connecting hooks 2 that are close to each other. Correspondingly, the size (length and width) and installation position of the impact plates 11 provided on different filter press plates 1 can also be different, thereby preventing the connecting hooks 2 from obstructing or interfering with the impact plates 11.

[0084] According to another aspect of the present invention, a plate and frame filter press is also provided, including the aforementioned rapid discharge mechanism. The filter plate 1 can be a filter plate in a plate and frame filter press.

[0085] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A rapid unloading mechanism, characterized in that, include: Multiple filter press plates, each of which is slidably mounted on the same slide rail, and a separation shaft is fixedly mounted on the side wall of each of which is a filter press plate; Multiple connecting hooks are provided, with one connecting hook between every two adjacent separating shafts. Each connecting hook has a rotating end and a hooking end, wherein the rotating end is rotatably connected to one of the two adjacent separating shafts; the inner sidewall of the hooking end is slidably disposed on the other of the two adjacent separating shafts; and The opening and closing mechanism is connected to the edge filter press plate and is configured to drive the edge filter press plate to slide along the slide rail; the edge filter press plate is the outermost filter press plate among the plurality of filter press plates; The opening and closing mechanism includes a hydraulic cylinder, a push plate, and a thrust plate; multiple filter plates are sandwiched between the push plate and the thrust plate. The thrust plate is fixedly mounted on the slide rail; The pusher plate is slidably mounted on the slide rail, and the pusher plate is connected to the edge filter plate near the hydraulic cylinder. The movable end of the hydraulic cylinder is fixedly connected to the push plate to drive the push plate closer to or away from the thrust plate; The connecting hook is provided with a sliding groove; a shock-absorbing mechanism is provided in the sliding groove; the shock-absorbing mechanism includes: The impact block is slidably disposed in the groove; An elastic element, one end of which is fixedly disposed on a first inner wall surface, the first inner wall surface being the inner wall surface of the slide groove near the hook end; the elastic element is used to push the shock block to move along the slide groove in a direction away from the first inner wall surface; An opening and closing block is slidably disposed on the impact block; the opening and closing block is provided with a sliding tip; A gate is disposed on the first inner wall surface, and a gate is provided on the gate, with a gate inclined surface. The sliding tip is slidably disposed on the gate inclined surface to drive the gate block to slide in the shock block. A stop tooth is rotatably disposed at the end of the opening / closing block away from the shock block; and Impact plate, disposed on the side wall of the filter press plate, is used to absorb the impact of the impact block; The rotating part of the stop tooth is provided with a first limiting ratchet; The opening and closing block is provided with a second limiting ratchet, which is located on the rotation path of the first limiting ratchet to limit the rotation angle of the stop tooth; The sliding direction restricted by the chute is perpendicular to the sliding direction of the opening and closing block in the shock block; The impact block includes: A slider body, the slider body having a sliding end and an impact end, the sliding end being slidably disposed in the groove; the opening and closing block being slidably disposed on the sliding end; and A shock-absorbing column is fixedly installed at the impact end; the distance from the impact surface of the shock-absorbing column to the blocking surface of the stop tooth is greater than the diameter of the separation shaft.

2. The rapid unloading mechanism according to claim 1, characterized in that, A portion of the cross-section of the separating shaft is configured as a rectangular cross-section; the rectangular cross-section is used to contact the blocking surface of the stop tooth.

3. The rapid unloading mechanism according to claim 2, characterized in that, A portion of the cross-section of the separating shaft is configured as an arc-shaped cross-section; the arc-shaped cross-section is positioned opposite to the rectangular cross-section; The arc-shaped cross section is used to contact the clearance surface of the stop tooth, and the clearance surface is the surface of the stop tooth that is opposite to the blocking surface.

4. The rapid unloading mechanism according to claim 1, characterized in that, The installation spacing between any two adjacent connecting hooks is different, and the installation spacing is the distance between the connecting hook and the side wall of the filter press plate.

5. A rapid unloading mechanism according to claim 1, characterized in that, The elastic element is a spring.

6. A plate and frame filter press, characterized in that, Includes the rapid unloading mechanism as described in any one of claims 1 to 5.

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