Valve clack structure of double-seal valve

Abstract

The utility model relates to the technical field of valves, in particular to a valve clack structure of a double-seal valve, which comprises a delivery pipe, a ball valve body and a closed valve body are mounted on the delivery pipe, a moving column is mounted in the closed valve body, an upper closed block is connected onto the moving column, a middle closed block is inserted into the lower end of the upper closed block, and a valve clack is mounted on the middle closed block. A middle sealing block is inserted into the upper end of the upper sealing block, a lower sealing block is inserted into the lower end of the middle sealing block, the upper sealing block, the middle sealing block and the lower sealing block are jointly sleeved with a reinforcing sleeve, the reinforcing sleeve is detachably connected with the upper sealing block, the middle sealing block and the lower sealing block, and the reinforcing sleeve is sleeved with a sealing sleeve. According to the valve clack structure of the double-seal valve, the strength is improved, the sealing effect is guaranteed, corresponding parts can be rapidly replaced, overall replacement is not needed, the use cost is further reduced, and practicability and stability are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a double-sealing valve disc structure. Background Technology

[0002] In some high-flow-rate liquid transportation processes, in order to ensure timely shut-off of the transportation, double sealing valves are usually installed to close and cut off the flow, ensuring a sealing effect.

[0003] Current dual-sealed valves all have a one-piece molded valve disc structure, which will gradually break after being impacted by high-pressure and high-flow-rate liquids, reducing their strength. In addition, after breakage, the entire valve needs to be replaced, which is costly. To address these issues, we propose a dual-sealed valve disc structure. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a double-sealing valve disc structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A double-sealing valve disc structure includes a delivery pipe, on which a ball valve body and a sealing valve body are mounted. A movable column is installed within the sealing valve body, and an upper sealing block is connected to the movable column. A middle sealing block is inserted into the lower end of the upper sealing block, and a lower sealing block is inserted into the lower end of the middle sealing block. A reinforcing sleeve is fitted onto the upper, middle, and lower sealing blocks, and the reinforcing sleeve is detachably connected to these blocks. A sealing sleeve is fitted onto the reinforcing sleeve. The lower end of the upper sealing block has an equal circumference... The upper sealing block has four fixed upper plates at a fixed spacing. The lower sealing block has four lower plates at equal intervals around its upper circumference. The upper and lower ends of the middle sealing block are provided with four slots at equal intervals. The four lower plates and the four upper plates on the same side are respectively inserted into the four slots on the same side. The lower plates and upper plates are provided with threaded blind holes. One side of the slot is provided with a through hole corresponding to the threaded blind hole. The reinforcing sleeve is provided with a mounting hole corresponding to the through hole. A bolt is installed in the mounting hole. One end of the bolt passes through the through hole and is threaded into the threaded blind hole.

[0007] To better achieve the above objectives, the present invention adopts a further technical solution: the sealing sleeve is made of a rubber layer.

[0008] To better achieve the above objectives, the present invention adopts a further technical solution: the upper sealing block, the middle sealing block, the lower sealing block, and the sealing sleeve are all made of stainless steel.

[0009] To better achieve the above objectives, the present invention adopts a further technical solution: a spherical valve plate is provided inside the ball valve body.

[0010] The beneficial effects of this utility model are: the double sealing valve disc structure of this utility model not only improves strength and ensures sealing effect, but also allows for quick replacement of corresponding parts without the need for overall replacement, thus reducing usage costs and enhancing practicality and stability. Attached Figure Description

[0011] Figure 1 This is a diagram showing the external structure of the valve body of this utility model;

[0012] Figure 2 This is a diagram showing the sealing structure of the sealing valve body and sealing block of this utility model;

[0013] Figure 3 This is a structural diagram of the lower closed block of this utility model;

[0014] Figure 4 This is a structural diagram of the upper closed block of this utility model;

[0015] Figure 5 This is a structural diagram of the central closed block of this utility model;

[0016] Figure 6 This is a diagram showing the three closed block insertion structure of this utility model;

[0017] Figure 7 This is a structural diagram of the reinforcing sleeve of this utility model;

[0018] Figure 8 This is a structural diagram of the connection between the reinforcing sleeve and the sealing block of this utility model;

[0019] Figure 9 This is a structural diagram of the sealing sleeve of this utility model.

[0020] In the diagram: 1. Delivery pipe, 2. Ball valve body, 3. Closing valve body, 4. Lower insert plate, 5. Lower sealing block, 6. Upper sealing block, 7. Upper insert plate, 8. Slot, 9. Middle sealing block, 10. Through hole, 11. Reinforcing sleeve, 12. Mounting hole, 13. Bolt, 14. Sealing sleeve, 15. Threaded blind hole. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1-9As shown, a double-sealed valve disc structure includes a delivery pipe 1, on which a ball valve body 2 and a sealing valve body 3 are installed. The ball valve body 2 contains a spherical valve plate, which achieves the first layer of sealing. The sealing valve body 3 contains a movable column, on which an upper sealing block 6 is connected. A middle sealing block 9 is inserted into the lower end of the upper sealing block 6, and a lower sealing block 5 is inserted into the lower end of the middle sealing block 9. A reinforcing sleeve 11 is fitted onto the upper sealing block 6, the middle sealing block 9, and the lower sealing block 5, and the reinforcing sleeve 11 is detachably connected to these three blocks. A sealing sleeve 14, made of rubber, is fitted onto the reinforcing sleeve 11. The interlocking of the three sealing blocks ensures the stability and strength of the connection. Four upper insert plates 7 are fixed at equal intervals around the lower end of the upper sealing block 6, and four lower insert plates 4 are fixed at equal intervals around the upper end of the lower sealing block 5. The upper and lower ends of the sealing block 9 are equally spaced with four slots 8. The four lower insert plates 4 and the four upper insert plates 7 on the same side are respectively inserted into the four slots 8 on the same side. The three interlocking sealing blocks are sealed again by the reinforcing sleeve 11, which improves the tightness of the seal and the impact resistance, and further strengthens the strength. The lower insert plate 4 and the upper insert plate 7 are provided with threaded blind holes 15. One side of the slot 8 is provided with a through hole 10 corresponding to the threaded blind hole 15. The reinforcing sleeve 11 is provided with a mounting hole 12 corresponding to the through hole 10. A bolt 13 is installed in the mounting hole 12. One end of the bolt 13 passes through the through hole 10 and is threaded into the threaded blind hole 15. The upper sealing block 6, the middle sealing block 9, the lower sealing block 5 and the sealing sleeve 14 are all made of stainless steel. Stainless steel is highly corrosion resistant and can be replaced after the corresponding parts are damaged, reducing the cost of use and allowing for flexible installation.

[0023] When this utility model needs to be transported, the liquid enters the ball valve body 2 and the sealing valve body 3 through the transport pipe 1. The ball valve plate can perform the first sealing, and the connecting column drives the sealing block and the reinforcing sleeve 11 to perform the second sealing. The sealing block adopts a three-end plug-in form to ensure connection stability. The reinforcing sleeve 11 is sleeved on the outside to further enhance the strength, effectively improving the sealing effect of the valve disc and enhancing the strength. In addition, the corresponding part can be quickly replaced after the corresponding part is damaged, without the need for overall replacement, which further reduces the cost of use.

Claims

1. A double-sealed valve disc structure, comprising a delivery pipe (1), characterized in that, A ball valve body (2) and a shut-off valve body (3) are installed on the conveying pipe (1). A movable column is installed inside the shut-off valve body (3). An upper shut-off block (6) is connected to the movable column. A middle shut-off block (9) is inserted into the lower end of the upper shut-off block (6). A lower shut-off block (5) is inserted into the lower end of the middle shut-off block (9). A reinforcing sleeve (11) is fitted on the upper shut-off block (6), the middle shut-off block (9), and the lower shut-off block (5). The reinforcing sleeve (11) is detachably connected to the upper shut-off block (6), the middle shut-off block (9), and the lower shut-off block (5). A sealing sleeve (14) is fitted on the reinforcing sleeve (11). Four upper insert plates (7) are fixed at equal intervals around the lower end of the upper shut-off block (6). Four lower insert plates (4) are fixed at equal intervals around the upper end of the lower sealing block (5). Four slots (8) are provided at equal intervals at both the upper and lower ends of the middle sealing block (9). The four lower insert plates (4) and the four upper insert plates (7) on the same side are respectively inserted into the four slots (8) on the same side. The lower insert plates (4) and the upper insert plates (7) are provided with threaded blind holes (15). One side of the slot (8) is provided with a through hole (10) corresponding to the threaded blind hole (15). The reinforcing sleeve (11) is provided with a mounting hole (12) corresponding to the through hole (10). A bolt (13) is installed in the mounting hole (12). One end of the bolt (13) passes through the through hole (10) and is threaded into the threaded blind hole (15).

2. The valve disc structure of a double-sealing valve according to claim 1, characterized in that: The sealing sleeve (14) is made of a rubber layer.

3. The valve disc structure of a double-sealing valve according to claim 1, characterized in that: The upper sealing block (6), the middle sealing block (9), the lower sealing block (5), and the sealing sleeve (14) are all made of stainless steel.

4. The valve disc structure of a double-sealing valve according to claim 1, characterized in that: The ball valve body (2) is provided with a spherical valve plate.

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