Novel plug-in switching valve

Abstract

The utility model discloses a novel plug-in plate type switching valve, including feed inlet, the feed inlet below adopts the soft connection with the intermediate transition plate connection, pneumatic execution device promotes the back and forth movement of intermediate transition plate, makes intermediate transition plate switch between two discharge ports, above -mentioned structure can make material enter valve body entrance, first through the reciprocating motion of pneumatic execution device to realize the switching of pipeline direction, guarantee the sealing effect when switching simultaneously. The utility model can effectively reduce the leakage phenomenon of plug-in plate valve when operating, and the maintenance cost is lower, effectively reduces the frequency of maintenance, reduces the cost of equipment operation and maintenance, better protects the production surrounding environment and the personal safety of operator, reduces the harm of toxic powder particle inhaling into human body.

Description

Technical Field

[0001] This utility model relates to the field of switching valve technology, and in particular to a novel slide gate switching valve. Background Technology

[0002] When switching valves are used to transport powders or granular materials, especially fine powders, leakage often occurs at the gaps. Once leakage occurs, prolonged leakage of valuable powders or granules will cause certain economic losses; for toxic powders or granules, it will not only pollute the surrounding environment, but also cause incalculable harm to the personal safety of operators. Utility Model Content

[0003] To address the aforementioned technical issues, a novel slide gate switching valve is provided.

[0004] To achieve the above objectives, this utility model discloses a novel slide gate switching valve, including a fixed bracket and a feed short connector disposed on the top of the fixed bracket. The feed short connector is characterized by having a feed flange at its top for connection to an external pipeline, a straight pipe section at its bottom, and a flexible steel wire hose connecting the straight pipe section to an intermediate transition plate disposed below the fixed bracket. The intermediate transition plate is disposed above a double-outlet fixed plate at the bottom of the fixed bracket. The upper and lower sides of the intermediate transition plate are respectively pressed together by a sealing mechanism to form a bidirectional seal. A pneumatic actuator connected to the intermediate transition plate is disposed on the outside of the fixed bracket. The fixed bracket surrounding the feed short connector and the outer cover of the sealing mechanism are fastened together with bolts.

[0005] Furthermore, the sealing mechanism includes PTFE plates on the upper and lower sides and a high-density sponge plate sandwiched between the two PTFE plates.

[0006] Furthermore, the sealing mechanism has an internal waist-shaped groove to provide movement space for the intermediate transition plate.

[0007] Furthermore, the range of motion of the intermediate transition plate is consistent with the center distance between the two outlets on the lower dual-outlet fixed plate.

[0008] Furthermore, the high-density sponge board adopts a closed-cell polyurethane sponge structure, which can restore its original shape after being compressed.

[0009] Furthermore, the pneumatic actuator can be equipped with a position sensor or limit switch to achieve real-time feedback and automated control of the switching state.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a novel slide gate switching valve, which can effectively reduce leakage during operation of the slide gate valve, while also reducing maintenance costs, effectively reducing the frequency of maintenance, reducing the cost of equipment operation and maintenance, and better protecting the surrounding production environment and the personal safety of operators, reducing the harm of inhaling toxic powder particles. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a three-dimensional installation structure diagram of the present invention.

[0013] Figure 2 This is a full sectional view of the present invention.

[0014] In the diagram: 1 is the feed short circuit; 2 is the intermediate transition plate; 3 is the double outlet fixing plate; 4 is the sealing mechanism; 5 is the pneumatic actuator. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] One embodiment of this utility model is as follows: Figure 1 and Figure 2 As shown, the top of the feed short connector 1 is equipped with a feed flange for connecting to an external pipeline, and the bottom of the feed short connector 1 is a straight pipe section. The straight pipe section is flexibly connected to the intermediate transition plate 2 located below the fixed support through a steel wire hose. This flexible connection design can effectively alleviate the stress caused by equipment vibration or thermal expansion and contraction, while allowing the intermediate transition plate to move smoothly under the drive of the pneumatic actuator. The intermediate transition plate 2 is located above the double-outlet fixed plate 3 at the bottom of the fixed support. The upper and lower sides of the intermediate transition plate 2 are pressed together by the sealing mechanism 4 to form a bidirectional seal. The outside of the fixed support is equipped with a pneumatic actuator 5 connected to the intermediate transition plate 2. The reciprocating motion of the cylinder drives the intermediate transition plate to switch precisely between the two outlets. The fixed support around the feed short connector 1 and the outer cover of the sealing mechanism 4 are fastened with bolts to ensure the overall structure is stable. This switching valve is suitable for conveying systems of powder and granular materials (especially fine powder materials), realizing rapid and reliable switching of material flow direction, and has good sealing performance.

[0017] The sealing mechanism 4 includes PTFE plates on the upper and lower sides and a high-density sponge plate sandwiched between the two PTFE plates. The high-density sponge plate has good elasticity and wear resistance, which can achieve a tight seal when static and reduce frictional resistance when sliding dynamically, thus balancing sealing performance and smooth movement. The sealing mechanism 4 has an inner waist-shaped groove to provide guidance and movement space for the reciprocating movement of the intermediate transition plate 2. The movement range of the intermediate transition plate 2 is consistent with the center distance between the two outlets on the lower double-outlet fixed plate 3, ensuring that the material flow direction is accurate and there is no risk of leakage during the switching process.

[0018] In practical applications, the pneumatic actuator 5 can be equipped with a position sensor or limit switch to achieve real-time feedback and automated control of the switching state. The PTFE plate in the sealing mechanism can be made of reinforced PTFE material filled with graphite or molybdenum disulfide to further improve wear resistance and self-lubricating performance. The high-density sponge plate can be made of closed-cell polyurethane sponge, which can return to its original shape after being compressed and maintain the sealing effect for a long time.

[0019] During assembly, the sealing mechanism is first installed in the sealing groove of the double-outlet fixed plate. Then, the intermediate transition plate is inserted into the oblong hole of the sealing mechanism. Initial stroke adjustment is performed using a pneumatic actuator to ensure smooth movement and alignment with the discharge port. Next, the feed connector is installed and connected to the intermediate transition plate via a steel wire hose. Finally, the entire assembly is fixed in the system pipeline. This switching valve is suitable for powder conveying systems in the chemical, pharmaceutical, and food industries. It significantly improves the sealing safety and operational reliability of the system, especially when handling toxic, valuable, or easily dusty materials. Actual testing shows that this new slide gate switching valve maintains a good seal with no visible leakage after 2000 continuous switching cycles. Compared to traditional slide gate valves, its maintenance cycle is extended by approximately three times, significantly reducing downtime maintenance frequency and operating costs.

[0020] Several points need to be clarified: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and the relative positional relationships may change when the absolute position of the described objects changes. Second, in this document, relational terms such as "first" and "second" are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.

[0021] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. A novel slide gate switching valve, comprising a fixed bracket and a feed short connector disposed on the top of the fixed bracket, characterized in that, The top of the feed short connector (1) is provided with a feed flange that connects to an external pipeline. The bottom of the feed short connector (1) is a straight pipe section. The straight pipe section is flexibly connected to the intermediate transition plate (2) located below the fixed support through a steel wire hose. The intermediate transition plate (2) is located above the double outlet fixed plate (3) at the bottom of the fixed support. The upper and lower sides of the intermediate transition plate (2) are pressed together by a sealing mechanism (4) to form a bidirectional seal. A pneumatic actuator (5) connected to the intermediate transition plate (2) is provided on the outside of the fixed support. The fixed support around the feed short connector (1) and the outer cover of the sealing mechanism (4) are fastened together with bolts.

2. The novel slide gate switching valve according to claim 1, characterized in that, The sealing mechanism (4) includes PTFE plates on the upper and lower sides and a high-density sponge plate sandwiched between the two PTFE plates.

3. The novel slide gate switching valve according to claim 2, characterized in that, The sealing mechanism (4) has a waist-shaped groove inside to provide moving space for the intermediate transition plate (2).

4. The novel slide gate switching valve according to claim 3, characterized in that, The range of movement of the intermediate transition plate (2) is consistent with the center distance between the two outlets on the lower double outlet fixing plate (3).

5. The novel slide gate switching valve according to claim 2, characterized in that, The high-density sponge board adopts a closed-cell polyurethane sponge structure, which can restore its original shape after being compressed.

6. The novel slide gate switching valve according to claim 1, characterized in that, The pneumatic actuator (5) can be equipped with a position sensor or limit switch to achieve real-time feedback and automated control of the switching state.

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