Plate pulling trolley for filter press

Abstract

The utility model relates to the technical field of filter presses, in particular to a pulling plate trolley for a filter press, which comprises a pulling plate seat, two side plates are fixedly arranged above the pulling plate seat, and a sliding seat is mounted above the pulling plate seat in a sliding manner; a plate pulling claw and a retaining claw are sequentially arranged from the left end to the right end of the side plate, and a plate pulling space is formed between the plate pulling claw and the retaining claw in the opposite direction. The rotating end of the plate pulling claw is rotationally connected with the two side plates through a first rotating piece; the rotating end of the retaining claw is rotationally connected with the two side plates through a second rotating piece; a locking piece is arranged on the side, away from the retaining claw, of the plate pulling claw. A limiting piece is arranged on the side, away from the plate pulling claw, of the retaining claw. The outer side of the first rotating part is connected with the outer side of the second rotating part through a linkage assembly; through the switching state of the sliding seat and the linkage effect of the linkage assembly, the automatic locking and unlocking of the plate pulling claw and the retaining claw and the synchronous operation in the locking state are realized, so that the efficiency, the safety and the adaptability of the plate pulling operation of the filter press can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter press technical field especially relates to a pull plate trolley for filter press. BACKGROUND

[0002] In the operation process of the filter press, the pull plate operation is a crucial link, which is directly related to the filtering efficiency, operation safety and maintenance convenience of the filter press. The traditional pull plate operation often relies on manual operation, which not only has high labor intensity and low efficiency, but also has high safety risk when facing large or heavy filter plates. Therefore, with the continuous development of industrial automation technology, it is particularly important to design a device that can automatically or semi-automatically complete the pull plate operation.

[0003] In the existing filter press pull plate equipment, although some products with high automation degree have appeared, there are still some deficiencies in the structure design and operation process. For example, some devices have insufficient stability when clamping the filter plate, which is prone to shaking or falling off, which not only affects the operation efficiency, but also may cause production accidents. In addition, the adaptability of some devices is poor, and they can only be applied to filter plates of specific size or type, which undoubtedly limits the versatility and flexibility of the device. SUMMARY

[0004] The utility model aims at providing a pull plate trolley for filter press, which can improve the efficiency, safety and adaptability of the filter press pull plate operation.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] A pull plate trolley for filter press, comprising a pull plate seat, the pull plate seat is used for linear reciprocating motion along the guide rail on both sides of the filter press;

[0007] Two side plates are arranged above the pull plate seat along the length direction, and a sliding seat is slidingly installed between the two side plates;

[0008] A pull plate claw and a stop claw are arranged in sequence from the left end to the right end of the side plate, the pull plate claw and the stop claw form a pull plate space between them, and the pull plate space is used for clamping a single filter plate;

[0009] The rotating end of the pull plate claw is rotatably connected to the two side plates through a first rotating member, and the first rotating member has a tendency to drive the pull plate claw to rotate in the direction of the locking member;

[0010] The rotating end of the stop claw is rotatably connected to the two side plates through a second rotating member, and the second rotating member has a tendency to drive the stop claw to rotate in the direction of the pull plate claw;

[0011] The locking member is arranged on the side of the pull plate claw away from the retreat stop claw;

[0012] The retreat stop claw is provided with a limiting member on the side away from the pull plate claw, and the limiting member is used to limit the retreat stop claw to keep vertical when rotating towards the limiting member;

[0013] The outer side of the first rotating member and the outer side of the second rotating member are connected through a linkage assembly;

[0014] The sliding seat comprises at least two position states, i.e. a limiting state and a release state;

[0015] When the sliding seat is in the limiting state, the sliding seat slides towards the retreat stop claw, and the sliding seat drives the locking member to rotate towards the retreat stop claw, so that the locking member abuts against the pull plate claw to limit the pull plate claw to keep vertical when rotating towards the locking member; and when the pull plate claw rotates towards the retreat stop claw, the linkage assembly drives the retreat stop claw to rotate away from the pull plate claw;

[0016] When the sliding seat is in the release state, the sliding seat slides towards the pull plate claw, and the sliding seat drives the locking member to rotate away from the pull plate claw, so that the locking member releases the limitation on the pull plate claw.

[0017] Preferably, when the sliding seat is in the limiting state, one end of the sliding seat close to the locking member extends out of the pull plate seat;

[0018] When the sliding seat is in the release state, one end of the sliding seat close to the limiting member extends out of the pull plate seat.

[0019] Preferably, the sliding seat is provided with a reset long slot, the opening direction of the reset long slot is the same as the sliding direction of the sliding seat, and the reset long slot is located in the area of the locking member;

[0020] The locking member comprises a rotating end, a first abutting end, and a sliding end located between the rotating end and the abutting end;

[0021] The rotating end of the locking member is rotatably connected with the two side plates, the first abutting end of the locking member is arranged close to or away from the pull plate claw, and the sliding end of the locking member is slidably connected with the reset long slot;

[0022] The two ends of the reset long slot are respectively a limiting end and a release end, and the sliding seat drives the locking member to slide to the limiting end or the release end of the reset long slot;

[0023] When the rotating end of the locking piece is located at the limiting end of the reset long slot, the sliding seat extends out of the pull plate base at one end close to the locking piece, and the sliding seat is in a limiting state;

[0024] When the rotating end of the locking piece is located at the limiting end of the reset long slot, the sliding seat extends out of the pull plate base at one end close to the locking piece, and the sliding seat is in a limiting state;

[0025] Preferably, the opening height of the limiting end is higher than that of the releasing end;

[0026] The side close to the pull plate claw of the locking piece is a first inclined surface;

[0027] The side close to the locking piece of the pull plate claw is a second inclined surface;

[0028] When the sliding seat is in the releasing state, the sliding seat slides in the direction of the pull plate claw, the sliding seat drives the locking piece to rotate away from the pull plate claw, and the first inclined surface of the locking piece is overlapped on the second inclined surface of the pull plate claw.

[0029] Preferably, the limiting piece includes a fixed end, a second abutting end and a limiting end;

[0030] The fixed end of the limiting piece is fixedly installed between the two side plates, and the abutting end of the limiting piece abuts against the stop claw;

[0031] The upper surface of the sliding seat is provided with a releasing limiting groove and a locking limiting groove from left to right, the locking limiting groove or the releasing limiting groove is located in the area of the limiting piece, and the limiting end of the limiting piece is clamped in the locking limiting groove or the releasing limiting groove;

[0032] When the limiting end is clamped in the locking limiting groove, the sliding seat is in the limiting state;

[0033] When the limiting end is clamped in the releasing limiting groove, the sliding seat is in the releasing state.

[0034] Preferably, the first rotating piece includes a first rotating shaft and a first torsional spring;

[0035] The first rotating shaft is rotatably installed between the two side plates, the first torsional spring is sleeved on the first rotating shaft, and the rotating end of the pull plate claw is installed on the first rotating shaft and the first torsional spring.

[0036] Preferably, the second rotating piece includes a second rotating shaft and a second torsional spring;

[0037] The second rotating shaft is rotatably installed between the two side plates, the second torsion spring is sleeved on the second rotating shaft, and the rotating end of the retreat-stop claw is installed on the second rotating shaft and the second torsion spring.

[0038] Preferably, the linkage assembly comprises a chain and two chain connecting buckles.

[0039] The two ends of the chain are in driving connection with one end of the two chain connecting buckles respectively, and the other end of the two chain connecting buckles is in driving connection with the first rotating shaft and the second rotating shaft respectively.

[0040] One of the above technical solutions has the following beneficial effects:

[0041] 1. Improve operation efficiency: compared with the traditional manual plate pulling operation, the plate pulling trolley realizes the full-automatic pulling and releasing of the filter plate, greatly improves the automation degree of the filter press, reduces the labor intensity of the operator, and significantly improves the production efficiency.

[0042] 2. Enhance operation flexibility and adaptability: the plate pulling trolley can flexibly adapt to filter plates arranged in different ways, and by adjusting the parameters of the linkage assembly, the plate pulling claw and the retreat-stop claw can stably and accurately complete the plate pulling action under various working conditions, enhancing the versatility and flexibility of the equipment.

[0043] 3. Enhance operation safety: when the plate pulling trolley is in the locked state, the design of the locking part ensures the stability of the plate pulling claw 5 during the pulling of the filter plate, avoiding accidents caused by shaking or falling.

[0044] 4. Improve automation degree: by switching the state of the sliding seat, the plate pulling claw and the retreat-stop claw are automatically locked and unlocked, improving the automation degree of the filter press operation and reducing manual intervention.

[0045] 5. Simplify operation process: through the design of the linkage assembly, the first rotating part and the second rotating part, the rotating action of the plate pulling claw and the retreat-stop claw is realized, simplifying the operation process and improving the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 is a structural schematic view of a plate pulling trolley for a filter press of the utility model;

[0047] Figure 2 is a structural schematic view of a hidden side plate of a plate pulling trolley for a filter press of the utility model;

[0048] Figure 3 is Figure 2 is a side view of the sliding seat in the limiting state;

[0049] Figure 4 isFigure 2 Side view of the sliding seat in the releasing state;

[0050] In the drawings: the pull plate seat 1, the side plate 2, the sliding seat 3, the reset long hole 30, the limiting end 301, the releasing end 302, the locking limiting groove 32, the releasing limiting groove 31, the linkage assembly 4, the chain 41, the chain connecting buckle 42, the pull plate claw 5, the second inclined surface 51, the retreat stop claw 6, the first rotating part 7, the first rotating shaft 71, the first torsional spring 72, the second rotating part 8, the second rotating shaft 81, the second torsional spring 82, the locking part 9, the first inclined surface 91, the limiting part 10. DETAILED DESCRIPTION

[0051] The technical scheme of the present application will be further described below in combination with the drawings and through specific embodiments.

[0052] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0053] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0054] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] A pull plate trolley for a filter press, comprising a pull plate seat 1, the pull plate seat 1 is used for linear reciprocating motion along the guide rail on both sides of the filter press;

[0056] Two side plates 2 are arranged above the pull plate seat 1 along the length direction thereof, and a sliding seat 3 is slidingly installed between the two side plates 2.

[0057] Pulling claw 5 and anti-reverse claw 6 are arranged sequentially from the left end to the right end of the side plate 2. The pulling claw 5 and anti-reverse claw 6 form a pulling space between them, which is used to hold a single filter press plate.

[0058] The rotating end of the pull plate claw 5 is rotatably connected to the two side plates 2 through the first rotating member 7. The first rotating member 7 has the tendency to drive the pull plate claw 5 to rotate in the direction of the locking member 9.

[0059] The rotating end of the anti-reverse claw 6 is rotatably connected to the two side plates 2 via a second rotating member 8. The second rotating member 8 has a tendency to drive the anti-reverse claw 6 to rotate in the direction of the pull plate claw 5.

[0060] A locking element 9 is provided on the side of the pull plate claw 5 away from the anti-reverse claw 6;

[0061] The anti-reverse claw 6 is provided with a limiting member 10 on the side away from the pull plate claw 5. The limiting member 10 is used to restrict the anti-reverse claw 6 from rotating in the direction of the limiting member 10 and keep it in a vertical state.

[0062] The outer side of the first rotating member 7 and the outer side of the second rotating member 8 are connected by the linkage assembly 4;

[0063] The sliding seat 3 includes at least two position states, namely a restricted state and a released state.

[0064] When the sliding seat 3 is in the restricted state, the sliding seat 3 slides towards the anti-reverse pawl 6, and the sliding seat 3 drives the locking member 9 to rotate towards the anti-reverse pawl 6, so that the locking member 9 abuts against the pull plate pawl 5 to keep the pull plate pawl 5 in a vertical state when it restricts the pull plate pawl 5 from rotating towards the locking member 9; and when the pull plate pawl 5 rotates towards the anti-reverse pawl 6, the linkage component 4 drives the anti-reverse pawl 6 to rotate away from the pull plate pawl 5;

[0065] When the sliding seat 3 is in the released state, the sliding seat 3 slides towards the pull plate claw 5, and the sliding seat 3 drives the locking member 9 to rotate away from the pull plate claw 5, so that the locking member 9 releases the restriction on the pull plate claw 5.

[0066] like Figures 1-2 As shown, the working principle of this pull-plate trolley mainly relies on the coordinated action of the pull-plate seat 1, the sliding seat 3, the linkage component 4, the pull-plate claw 5, and the anti-reverse claw 6, as detailed below:

[0067] When the pull plate base 1 is located at the right end of the side guide rail of the filter press, the sliding seat 3 is in a limited state. Because the locking piece 9 abuts against the pull plate claw 5, the further rotation of the pull plate claw 5 is limited, so that the pull plate claw 5 remains in a vertical standing state, and the retreat stopper 6 is in a horizontal falling state.

[0068] After receiving the command, the pull plate base 1 starts to advance from the right to the left along the guide rail of the filter press. When the pull plate claw 5 advances to below the filter plate handle, it is pressed down clockwise by the filter plate handle, that is, the pull plate claw 5 rotates towards the retreat stopper 6. At the same time, the linkage assembly 4 and the second rotating piece 8 make the retreat stopper 6 rotate clockwise in the pull plate space, that is, the retreat stopper 6 rotates away from the pull plate claw 5, and under the action of the limiting piece 10, the retreat stopper 6 can only remain in a vertical state. Subsequently, the pull plate claw 5 is released after passing through the filter plate handle, and rotates counterclockwise to lift up under the reset action of the first rotating piece 7, and rotates towards the locking piece 9 to remain in a vertical state under the action of the locking piece 9. At this time, the retreat stopper 6 blocks the filter plate handle, so that the single filter plate is limited in the pull plate space between the pull plate claw 5 and the retreat stopper 6.

[0069] After receiving the command, the pull plate base 1 starts to advance from the right to the left along the guide rail of the filter press. When the pull plate claw 5 advances to below the filter plate handle, it is pressed down clockwise by the filter plate handle, that is, the pull plate claw 5 rotates towards the retreat stopper 6. At the same time, the linkage assembly 4 and the second rotating piece 8 make the retreat stopper 6 rotate clockwise in the pull plate space, that is, the retreat stopper 6 rotates away from the pull plate claw 5, and under the action of the limiting piece 10, the retreat stopper 6 can only remain in a vertical state. Subsequently, the pull plate claw 5 is released after passing through the filter plate handle, and rotates counterclockwise to lift up under the reset action of the first rotating piece 7, and rotates towards the locking piece 9 to remain in a vertical state under the action of the locking piece 9. At this time, the retreat stopper 6 blocks the filter plate handle, so that the single filter plate is limited in the pull plate space between the pull plate claw 5 and the retreat stopper 6.

[0070] When the sliding seat 3 is in the released state, the locking piece 9 does not limit the pull plate claw 5, and the pull plate claw 5 and the retreat stopper 6 are both in a horizontal falling state due to the pre-tightening force of the first rotating piece 7 and the second rotating piece 8.

[0071] In summary, the beneficial effects of the pull plate trolley include:

[0072] 1. Improve operation efficiency: Compared with traditional manual pull plate operation, the pull plate trolley realizes full-automatic pulling and releasing of the filter plate, greatly improves the automation degree of the filter press, reduces the labor intensity of the operator, and significantly improves the production efficiency.

[0073] 2. Enhance operation flexibility and adaptability: The pull plate trolley can flexibly adapt to filter plates arranged in different ways. By adjusting the parameters of the linkage assembly 4, it can ensure that the pull plate claw 5 and the retreat stopper 6 can stably and accurately complete the pull plate action under various working conditions, enhancing the versatility and flexibility of the equipment.

[0074] 3. Enhance operation safety: When the pull plate trolley is in the locked state, the design of the locking piece 9 ensures the stability of the pull plate claw 5 during the pulling of the filter plate, avoiding accidents caused by shaking or falling.

[0075] 4. Improve automation: By switching the state of the sliding seat 3, the automatic locking and unlocking of the pull plate claw 5 and the anti-reverse claw 6 can be achieved, thereby improving the automation level of the filter press operation and reducing manual intervention.

[0076] 5. Simplified operation process: Through the design of linkage component 4, first rotating component 7 and second rotating component 8, the rotation action of pull plate claw 5 and anti-reverse claw 6 is realized, simplifying the operation process and improving work efficiency.

[0077] To further explain, when the sliding seat 3 is in the restricted state, the end of the sliding seat 3 near the locking member 9 extends out of the pull plate seat 1;

[0078] When the sliding seat 3 is in the released state, the end of the sliding seat 3 near the limiting member 10 extends out of the pull plate seat 1.

[0079] like Figures 3-4 As shown, after all filter plates are separated, the pull plate claw 5 is no longer subjected to the squeezing force of the filter plate handle, and the anti-reverse claw 6 remains horizontally lowered. The pull plate seat 1 continues to advance until the left end of the sliding seat 3, i.e., the end of the sliding seat 3 near the locking member 9, strikes the stop block at the end of the guide rail. At this time, the sliding seat 3 slides to the right relative to the pull plate seat 1, and the right end gradually extends out of the pull plate seat 1 until the sliding seat 3 is in the released state. At the same time, the locking member 9 removes its restriction on the pull plate claw 5, and the pull plate claw 5 rotates counterclockwise under the action of the first rotating member 7, falling horizontally onto the sliding seat 3, i.e., making an arc motion in the non-pull plate space. At this time, the height of both the pull plate claw 5 and the anti-reverse claw 6 is lower than the filter plate handle, and the pull plate seat 1 returns to the starting end of the guide rail.

[0080] like Figures 3-4 As shown, when the pull plate seat 1 returns to the starting end, the right end of the sliding seat 3, that is, the end of the sliding seat 3 near the limiting member 10, strikes the stop block at the starting end of the guide rail, causing the sliding seat 3 to slide to the left relative to the pull plate seat 1. The left end gradually extends out of the pull plate seat 1 until the sliding seat 3 is in the restricted state again. At the same time, the locking member 9 restricts the pull plate claw 5 again, and under the action of the first rotating member 7, the pull plate claw 5 rotates clockwise to the initial position, completing the reset.

[0081] To further explain, the sliding seat 3 has a reset elongated hole 30, the opening direction of the reset elongated hole 30 is the same as the sliding direction of the sliding seat 3, and the reset elongated hole 30 is located in the area of ​​the locking member 9;

[0082] The locking member 9 includes a rotating end, a first abutting end, and a sliding end located between the rotating end and the abutting end;

[0083] The rotating end of the locking piece 9 is rotationally connected with the two side plates 2, the first abutting end of the locking piece 9 is arranged close to or away from the pull plate claw 5, and the sliding end of the locking piece 9 is slidingly connected with the reset long slot hole 30;

[0084] The two ends of the reset long slot hole 30 are respectively a limiting end 301 and a release end 302, and the sliding seat 3 slidingly installs the locking piece 9 at the limiting end 301 or the release end 302 of the reset long slot hole 30;

[0085] When the rotating end of the locking piece 9 is located at the limiting end 301 of the reset long slot hole 30, one end of the sliding seat 3 close to the locking piece 9 extends out of the pull plate seat 1, and the sliding seat 3 is in a limiting state;

[0086] When the rotating end of the locking piece 9 is located at the release end 302 of the reset long slot hole 30, one end of the sliding seat 3 close to the locking piece 9 extends out of the pull plate seat 1, and the sliding seat 3 is in a release state.

[0087] As shown in the drawings, Figures 2-4 The design core of the reset assembly is the interaction between the locking piece 9 and the sliding seat 3. The locking piece 9 is rotationally installed between the two side plates 2 and is arranged close to the pull plate claw 5. The sliding seat 3 is provided with a reset long slot hole 30 in the action area of the locking piece 9, so that the rotating end of the locking piece 9 can freely slide in the hole.

[0088] The reset long slot hole 30 is specially designed to have a limiting end 301 and a release end 302. When the sliding seat 3 slides the locking piece 9 to the limiting end 301 of the reset long slot hole 30, the locking piece 9 will be closely abutted on the pull plate claw 5, thereby forming a stable locking mechanism, which can effectively limit the movable end of the pull plate claw 5 to perform arc reciprocating motion in the pull plate space with the rotating end of the pull plate claw 5 as the axis. At this time, the sliding seat 3 is in a limiting state, ensuring that the pull plate claw 5 can stably maintain its position when needed.

[0089] On the contrary, when the sliding seat 3 slides the locking piece 9 to the release end 302 of the reset long slot hole 30, the locking piece 9 will be away from the pull plate claw 5, thereby releasing the limitation on the pull plate claw 5. At this time, the sliding seat 3 is in a release state, and the movable end of the pull plate claw 5 is free to perform arc reciprocating motion in the non-pull plate space to re-enter the pull plate space for work as needed.

[0090] Therefore, through the ingenious design of the reset assembly, the operator does not need to manually adjust the position or state of the pull plate claw 5, thereby simplifying the operation process. At the same time, the structure of the reset assembly is relatively simple and easy to maintain, which reduces the maintenance cost and use difficulty of the equipment.

[0091] Further, as shown in the drawings, the core of the design of the reset assembly lies in the interaction between the locking piece 9 and the sliding seat 3. The locking piece 9 is ingeniously installed in rotation between the two side plates 2 and is arranged close to the pull plate claw 5. The sliding seat 3 is provided with a reset long slot 30 in the action area of the locking piece 9, so that the rotating end of the locking piece 9 can freely slide in the slot. Figures 2-4

[0092] The reset long slot 30 is specially designed to have two parts of a limiting end 301 and a release end 302. When the sliding seat 3 slides and the locking piece 9 slides to the limiting end 301 of the reset long slot 30, the locking piece 9 will tightly abut against the pull plate claw 5, thereby forming a stable locking mechanism, which can effectively limit the movable end of the pull plate claw 5 to perform arcuate reciprocating motion in the pull plate space with the rotating end of the pull plate claw 5 as the axis. At this time, the sliding seat 3 is in the limiting state, which ensures that the pull plate claw 5 can stably maintain its position when needed.

[0093] On the contrary, when the sliding seat 3 slides and the locking piece 9 slides to the release end 302 of the reset long slot 30, the locking piece 9 will be away from the pull plate claw 5, thereby releasing the limitation of the pull plate claw 5. At this time, the sliding seat 3 is in the release state, and the movable end of the pull plate claw 5 is free to perform arcuate reciprocating motion in the non-pull plate space to re-enter the pull plate space for work as needed.

[0094] Therefore, through the ingenious design of the reset assembly, the operator does not need to manually adjust the position or state of the pull plate claw 5, thereby simplifying the operation process. At the same time, the structure of the reset assembly is relatively simple and easy to maintain, which reduces the maintenance cost and use difficulty of the equipment.

[0095] When the sliding seat 3 is switched from the locking state to the release state, the rotating end of the locking piece 9 slides from the high limiting end 301 on the reset long slot 30 to the low release end 302 and releases the limitation of the pull plate claw 5, so that the pull plate claw 5 approaches the locking piece 9 under the action of the first rotating piece 7, and the first inclined surface 91 of the locking piece 9 is overlapped with and abuts against the second inclined surface 51 of the pull plate claw 5.

[0096] When the sliding seat 3 is switched from the release state to the locking state, the sliding seat 3 drives the locking piece 9 to approach the pull plate claw 5, and the rotating end of the locking piece 9 slides from the low release end 302 on the reset long slot 30 to the high limiting end 301. Due to the mutual abutment of the two inclined surfaces, the locking piece 9 can push the pull plate claw 5 along the inclined surface to gradually and stably present a vertical state, thereby improving the stability.

[0097] Further, the limiting piece 10 includes a fixed end, a second abutting end and a limiting end. ​

[0098] The fixed end of the limiting piece 10 is fixedly installed between the two side plates 2, and the abutting end of the limiting piece 10 abuts against the retreat-stop claw 6.

[0099] The upper surface of the sliding seat 3 is provided with a release limiting groove 31 and a locking limiting groove 32 from left to right, the locking limiting groove 32 or the release limiting groove 31 is located in the region of the limiting piece 10, and the limiting end of the limiting piece 10 is clamped in the locking limiting groove 32 or the release limiting groove 31.

[0100] When the limiting end is clamped in the locking limiting groove 32, the sliding seat 3 is in a limiting state.

[0101] When the limiting end is clamped in the release limiting groove 31, the sliding seat 3 is in a release state.

[0102] As shown in the accompanying drawings, Figures 2-4 The design of the reset assembly integrates the interaction of the limiting piece 10 and the sliding seat 3 to achieve precise control of the locking piece 9.

[0103] Specifically, the limiting piece 10 is stably installed between the two side plates 2 and is arranged close to the retreat-stop claw 6, which not only effectively limits the rotation range of the retreat-stop claw 6 and ensures its stability and accuracy during operation, but also has a unique feature that the lower end of the limiting piece 10 is provided with a limiting end that can be accurately clamped into two key grooves on the upper surface of the sliding seat 3: the release limiting groove 31 and the locking limiting groove 32. These two grooves are located in the action region of the limiting piece 10, so that the limiting end can be clamped into the corresponding groove in different working states, thereby ensuring that the locking piece 9 can be clamped into the corresponding end position of the reset long slot 30 in different working states, effectively preventing operation errors caused by accidental movement of the locking piece 9, and improving the precision and stability of the overall operation.

[0104] Further, the first rotating member 7 includes a first rotating shaft 71 and a first torsional spring 72.

[0105] The first rotating shaft 71 is rotatably installed between the two side plates 2, the first torsional spring 72 is sleeved on the first rotating shaft 71, and the rotating end of the pull plate claw 5 is installed on the first rotating shaft 71 and the first torsional spring 72.

[0106] As shown in the accompanying drawings, Figure 2As shown, the known torsion spring is a kind of spring capable of storing and releasing torsion energy. In the first rotating member 7, it is closely matched with the first rotating shaft 71. When the first rotating shaft 71 rotates, the first torsion spring 72 will be twisted and store energy; when the external force disappears, the torsion spring will release the stored energy, so that the first rotating shaft 71 returns to the initial position. Moreover, the rotating end of the pull plate claw 5 is installed on the first rotating shaft 71 and the first torsion spring 72. This means that the pull plate claw 5 can rotate with the first rotating shaft 71, and its rotating behavior is constrained and affected by the first torsion spring 72.

[0107] When the locking member 9 acts on the pull plate claw 5, the pull plate claw 5 will drive the first rotating shaft 71 to rotate, and switch from the horizontal falling state to the vertical standing state, while the first torsion spring 72 is twisted and stores energy. When the action of the locking member 9 disappears, the first torsion spring 72 releases energy, pushes the pull plate claw 5 connected to the first rotating shaft 71 to rotate towards the locking member 9, and switches from the vertical standing state to the horizontal falling state. This automatic reset function improves the reliability and convenience of the equipment.

[0108] Further explanation, the second rotating member 8 includes a second rotating shaft 81 and a second torsion spring 82;

[0109] The second rotating shaft 81 is rotatably installed between the two side plates 2, the second torsion spring 82 is sleeved on the second rotating shaft 81, and the rotating end of the stop pawl 6 is installed on the second rotating shaft 81 and the second torsion spring 82.

[0110] As Figure 2 As shown, in the second rotating member 8, the second torsion spring 82 is closely matched with the first rotating shaft 71. When the second rotating shaft 81 rotates, the second torsion spring 82 will be twisted and store energy; when the external force disappears, the torsion spring will release the stored energy, so that the second rotating shaft 81 returns to the initial position. Moreover, the rotating end of the stop pawl 6 is installed on the second rotating shaft 81 and the second torsion spring 82. This means that the stop pawl 6 can rotate with the second rotating shaft 81, and its rotating behavior is constrained and affected by the first torsion spring 72.

[0111] When the pull plate claw 5 is acted on by the linkage assembly 4, it will form a same direction rotating cooperation with the pull plate claw 5 in the pull plate space. In the process of rotating cooperation, the stop pawl 6 will drive the second rotating shaft 81 to rotate, and due to the limiting action of the limiting member 10, the stop pawl 6 will switch from the horizontal falling state to the vertical standing state, while the second torsion spring 82 will be twisted and store energy. When the action of the linkage assembly 4 disappears, the second torsion spring 82 releases energy, pushes the stop pawl 6 connected to the second rotating shaft 81 to rotate, and switches from the vertical standing state to the horizontal falling state. This automatic reset function improves the reliability and convenience of the equipment.

[0112] To further explain, the linkage component 4 includes a chain 41 and two chain connecting buckles 42;

[0113] Both ends of the chain 41 are respectively connected to one end of the two chain connecting buckles 42, and the other ends of the two chain connecting buckles 42 are respectively connected to the first rotating shaft 71 and the second rotating shaft 81.

[0114] like Figure 2 As shown, the known linkage component 4 mainly consists of a chain 41 and two chain connecting buckles 42. Both ends of the chain 41 are hinged to one end of each of the two chain connecting buckles 42, allowing the chain 41 to rotate freely between the buckles. Simultaneously, the other ends of the two chain connecting buckles 42 are respectively connected to the first rotating shaft 71 and the second rotating shaft 81, ensuring that the buckles can drive the rotating shafts to rotate synchronously. Based on the connection relationship between the chain 41, the chain connecting buckles 42, and the two rotating shafts, a parallelogram-like structural principle is formed.

[0115] When either the first rotating shaft 71 or the second rotating shaft 81 rotates, the chain connecting buckle 42 connected to it will also rotate. Since the two ends of the chain 41 are hinged to the two connecting buckles respectively, the chain 41 will deform accordingly, but will always remain continuous. At this time, the two rotating shafts, the two chain connecting buckles 42, and a section of the chain 41 will form a parallelogram-like structure. In this parallelogram, opposite sides remain parallel and of equal length when the chain 41 is not fully stretched or compressed, while adjacent sides change length and direction synchronously with the rotation of the rotating shafts.

[0116] Due to the continuity of chain 41 and the stability of the parallelogram structure, when the first rotating shaft rotates, the second rotating shaft will also rotate at the same angle and speed, achieving synchronous rotation between the two. This synchronous rotation characteristic enables the linkage component 4 to play an important role in the pull-plate trolley, such as in transmission, positioning, and synchronization.

[0117] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A draw plate trolley for a filter press, characterized in that Including pull plate seat (1), the pull plate seat (1) is used to make linear reciprocating movement along the guide rail of both sides of filter press; Two side plates (2) are arranged on the upper side of the pull plate seat (1) along the length direction, and a sliding seat (3) is slidably arranged between the two side plates (2); A pull plate claw (5) and a retreat stop claw (6) are sequentially arranged from the left end to the right end of the side plate (2), the pull plate claw (5) and the retreat stop claw (6) are opposite to each other and form a pull plate space, and the pull plate space is used for clamping a single filter plate; The rotating end of the pull plate claw (5) is rotatably connected to the two side plates (2) through a first rotating piece (7), and the first rotating piece (7) has a tendency to drive the pull plate claw (5) to rotate towards a locking piece (9); The rotating end of the retreat stop claw (6) is rotatably connected to the two side plates (2) through a second rotating piece (8), and the second rotating piece (8) has a tendency to drive the retreat stop claw (6) to rotate towards the pull plate claw (5); The side, away from the retreat stop claw (6), of the pull plate claw (5) is provided with the locking piece (9); The side, away from the pull plate claw (5), of the retreat stop claw (6) is provided with a limiting piece (10), and the limiting piece (10) is used for limiting the retreat stop claw (6) to keep a vertical state when rotating towards the limiting piece (10); The outer sides of the first rotating piece (7) and the second rotating piece (8) are connected through a linkage assembly (4); The sliding seat (3) includes at least two position states, and the two position states are a limiting state and a release state, respectively; When the sliding seat (3) is in the limiting state, the sliding seat (3) slides towards the retreat stop claw (6), the sliding seat (3) drives the locking piece (9) to rotate towards the retreat stop claw (6), so that the locking piece (9) abuts against the pull plate claw (5) to limit the pull plate claw (5) to keep a vertical state when rotating towards the locking piece (9); and when the pull plate claw (5) rotates towards the retreat stop claw (6), the linkage assembly (4) drives the retreat stop claw (6) to rotate away from the pull plate claw (5); When the sliding seat (3) is in the release state, the sliding seat (3) slides towards the pull plate claw (5), the sliding seat (3) drives the locking piece (9) to rotate away from the pull plate claw (5), so that the locking piece (9) releases the limitation on the pull plate claw (5).

2. A draw-plate carriage for a filter press according to claim 1, characterized in that When the sliding seat (3) is in the limiting state, the end of the sliding seat (3) close to the locking piece (9) extends out of the pull plate seat (1); When the sliding seat (3) is in the release state, the end of the sliding seat (3) close to the limiting piece (10) extends out of the pull plate seat (1).

3. A draw-plate carriage for a filter press according to claim 2, characterised in that, The sliding seat (3) is provided with a reset long slot (30), the reset long slot (30) is arranged in the same direction as the sliding direction of the sliding seat (3), and the reset long slot (30) is located in the area of the locking piece (9). The locking piece (9) comprises a rotating end, a first abutting end and a sliding end between the rotating end and the abutting end; The rotating end of the locking piece (9) is rotationally connected with the two side plates (2), the first abutting end of the locking piece (9) is arranged close to or away from the pull plate claw (5), and the sliding end of the locking piece (9) is slidingly connected with the reset long slot (30); The two ends of the reset long slot (30) are respectively a limiting end (301) and a release end (302), and the sliding seat (3) slidingly installs the locking piece (9) at the limiting end (301) or the release end (302) of the reset long slot (30); When the rotating end of the locking piece (9) is located at the limiting end (301) of the reset long slot (30), one end of the sliding seat (3) close to the locking piece (9) protrudes out of the pull plate seat (1), and the sliding seat (3) is in a limiting state; When the rotating end of the locking piece (9) is located at the release end (302) of the reset long slot (30), one end of the sliding seat (3) close to the limiting piece (10) protrudes out of the pull plate seat (1), and the sliding seat (3) is in a release state.

4. A draw-plate carriage for a filter press according to claim 3, characterised in that, The opening height of the limiting end (301) is higher than that of the release end (302); One side of the locking piece (9) close to the pull plate claw (5) is a first inclined surface (91); One side of the pull plate claw (5) close to the locking piece (9) is a second inclined surface (51); When the sliding seat (3) is in a release state, the sliding seat (3) slides in the direction of the pull plate claw (5), the sliding seat (3) drives the locking piece (9) to rotate away from the pull plate claw (5), and the first inclined surface (91) of the locking piece (9) is overlapped on the second inclined surface (51) of the pull plate claw (5).

5. A draw-plate carriage for a filter press according to claim 4, characterised in that, The limiting piece (10) comprises a fixed end, a second abutting end and a limiting end; The fixed end of the limiting piece (10) is fixedly installed between the two side plates (2), and the abutting end of the limiting piece (10) abuts against the stop claw (6); The upper surface of the sliding seat (3) is provided with a release limiting groove (31) and a locking limiting groove (32) from left to right, the locking limiting groove (32) or the release limiting groove (31) is located in the area of the limiting piece (10), and the limiting end of the limiting piece (10) is clamped in the locking limiting groove (32) or the release limiting groove (31); When the limiting end is clamped in the locking limiting groove (32), the sliding seat (3) is in a limiting state; When the limiting end is clamped in the release limiting groove (31), the sliding seat (3) is in a release state.

6. A draw-plate carriage for a filter press according to claim 1, characterized in that The first rotating piece (7) comprises a first rotating shaft (71) and a first torsional spring (72); The first rotating shaft (71) is rotationally installed between the two side plates (2), the first torsional spring (72) is sleeved on the first rotating shaft (71), and the rotating end of the pull plate claw (5) is installed on the first rotating shaft (71) and the first torsional spring (72).

7. A draw-plate carriage for a filter press according to claim 6, characterised in that, The second rotating member (8) comprises a second rotating shaft (81) and a second torsion spring (82); The second rotating shaft (81) is rotatably installed between the two side plates (2), the second torsion spring (82) is sleeved on the second rotating shaft (81), and the rotating end of the stop pawl (6) is installed on the second rotating shaft (81) and the second torsion spring (82).

8. A draw-plate carriage for a filter press according to claim 7, characterised in that, The linkage assembly (4) comprises a chain (41) and two chain connecting buckles (42); The two ends of the chain (41) are respectively in transmission connection with one end of the two chain connecting buckles (42), and the other ends of the two chain connecting buckles (42) are respectively in transmission connection with the first rotating shaft (71) and the second rotating shaft (81).

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