Pressing plate limiting protection device of filter press

Abstract

The utility model discloses a pressing plate limit protection device of a filter press, which comprises a fixedly arranged mounting seat, a proximity switch and a travel switch are arranged on the mounting seat, the proximity switch and the travel switch are respectively and electrically connected with a control module of the filter press, a first connecting rod is fixedly connected onto a pressing plate, and a second connecting rod is fixedly connected onto the pressing plate. A sensing piece matched with the proximity switch is installed at the end of the first connecting rod, a second connecting rod is further fixedly connected to the pressing plate, and a contact plate matched with the travel switch is installed at the end of the second connecting rod. And double limiting protection is conducted on the pressing plate, the situation that the pressing plate moves uncontrollably and extrudes the pressing plate to cause safety accidents is prevented, and then the operation safety of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, and more specifically, to a pressure plate limiting protection device for a filter press. Background Technology

[0002] A filter press is a commonly used solid-liquid separation device. During operation, the pressure plate moves towards the fixed platen of the filter press to a preset stop position and then stops. At this point, the pressure plate compresses the platen, and then other processes are performed. After completing the relevant processes, the pressure plate returns to the initial position, and the above process is repeated. In the prior art, a sensor is set at the preset stop position. When the sensor detects the pressure plate, it sends a control signal to stop the pressure plate from moving. However, these sensors often fail due to various reasons, such as wire wear and lifespan issues. Once a failure occurs, the pressure plate may move uncontrollably and compress the platen, causing the mechanism to malfunction and potentially leading to a safety accident.

[0003] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide a limiting protection device for the pressing plate of a filter press, aiming to solve at least one of the technical problems existing in the prior art. To achieve the above objective, the technical solution adopted is as follows:

[0005] A limit protection device for the pressing plate of a filter press includes a fixed mounting base, on which a proximity switch and a limit switch are provided. The proximity switch and the limit switch are electrically connected to the control module of the filter press. A first connecting rod is fixedly connected to the pressing plate, and a sensing plate matching the proximity switch is installed at the end of the first connecting rod. A second connecting rod is also fixedly connected to the pressing plate, and a contact plate cooperating with the limit switch is installed at the end of the second connecting rod.

[0006] When the pressing plate moves towards the pressing plate of the fixed filter press to the preset stop position, the sensing plate is within the sensing range of the proximity switch. The proximity switch sends a signal to the control module, and the control module controls the pressing plate to stop moving. At this time, there is a certain distance between the contact plate and the limit switch. If the pressing plate continues to move from the preset stop position towards the pressing plate of the fixed filter press, the contact plate will contact the limit switch, and the limit switch will send a signal to the control module, and the control module will control the filter press to stop.

[0007] Preferably, the interval is 1-5 cm.

[0008] Preferably, the contact plate is arranged perpendicular to the second connecting rod.

[0009] Preferably, the device further includes an alarm module, which issues an alarm when the control module stops the filter press.

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

[0011] This utility model discloses a pressure plate limiting protection device for a filter press, which provides double limiting protection for the pressure plate to prevent uncontrolled movement of the pressure plate and crushing of the pressure plate, thereby preventing safety accidents and improving the safety of equipment operation. Attached Figure Description

[0012] To more clearly illustrate the technical solution of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the device structure of this utility model.

[0014] In the diagram: 1. Mounting base; 2. Pressure plate; 3. Proximity switch; 4. Limit switch; 5. First link; 6. Second link; 7. Sensing plate; 8. Contact plate; 9. Pressure plate. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] like Figure 1 As shown, a preferred embodiment of this utility model provides a pressure plate limiting protection device for a filter press.

[0018] The device includes a mounting base 1, which is located in the moving direction of the pressure plate 2 and is fixedly installed on the filter press frame. The mounting base 1 is equipped with a proximity switch 3 and a limit switch 4, which are arranged vertically at intervals. The proximity switch 3 and the limit switch 4 are electrically connected to the control module of the filter press.

[0019] The clamping plate 2 is provided with a first connecting rod 5 and a second connecting rod 6, which are arranged vertically at intervals and are fixedly connected to the clamping plate 2 respectively. The end of the first connecting rod 5 is equipped with a sensing plate 7 that matches the proximity switch 3, and the end of the second connecting rod 6 is vertically fixedly equipped with a contact plate 8, which cooperates with the limit switch 4.

[0020] When the pressing plate 2 moves towards the pressing plate 9 of the fixed filter press to the preset stop position, such as Figure 1 At the position shown, the sensing element 7 is within the sensing range of the proximity switch 3. The proximity switch 3 can detect the sensing element 7 and send a signal to the control module. The control module controls the pressing plate 2 to stop moving. At this time, the contact plate 8 and the limit switch 4 have a certain distance and are in a non-contact state. Specifically, the distance range is 1-5cm.

[0021] If a malfunction occurs, causing the pressing plate 2 to become uncontrollable and continue to move from the preset stop position toward the pressing plate 9 of the fixed filter press, then the contact plate 8 will come into contact with the limit switch 4, and the limit switch 4 will send a signal to the control module, which will then control the filter press to stop.

[0022] Furthermore, the device also includes an alarm module (not shown in the figure). When the control module stops the filter press, the alarm module will sound an alarm to indicate that the staff needs to carry out maintenance.

[0023] In summary, the pressure plate limiting protection device for a filter press described in this embodiment of the present invention provides double limiting protection for the pressure plate, preventing the pressure plate from moving uncontrollably and squeezing the pressure plate, thus preventing safety accidents and improving the safety of equipment operation.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pressure plate limiting protection device for a filter press, characterized in that, The device includes a fixed mounting base, on which a proximity switch and a limit switch are provided. The proximity switch and the limit switch are electrically connected to the control module of the filter press. A first connecting rod is fixedly connected to the pressing plate, and a sensing plate matching the proximity switch is installed at the end of the first connecting rod. A second connecting rod is also fixedly connected to the pressing plate, and a contact plate cooperating with the limit switch is installed at the end of the second connecting rod. When the pressing plate moves towards the pressing plate of the fixed filter press to the preset stop position, the sensing plate is within the sensing range of the proximity switch. The proximity switch sends a signal to the control module, and the control module controls the pressing plate to stop moving. At this time, there is a certain distance between the contact plate and the limit switch. If the pressing plate continues to move from the preset stop position towards the pressing plate of the fixed filter press, the contact plate will contact the limit switch, and the limit switch will send a signal to the control module, and the control module will control the filter press to stop.

2. The pressure plate limiting protection device for a filter press according to claim 1, characterized in that, The specified interval is 1-5cm.

3. The pressure plate limiting protection device for a filter press according to claim 1, characterized in that, The contact plate is arranged perpendicularly to the second connecting rod.

4. The pressure plate limiting protection device for a filter press according to claim 1, characterized in that, The device also includes an alarm module, which issues an alarm when the control module stops the filter press.

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