Vulcanizing machine thermotechnical pipeline control switching valve

Abstract

The utility model relates to the technical field of switching valves, and provides a vulcanizing machine thermotechnical pipeline control switching valve which comprises a thermotechnical feeding pipe and a valve body arranged on one side of the thermotechnical feeding pipe, a first discharging pipe and a second discharging pipe are arranged on the lower side and the other side of the valve body respectively, and a support is arranged on the upper portion of the circumferential side of the valve body. A pneumatic actuator is installed at the upper end of the support, and a splitter plate is fixedly connected between the side walls of the valve body. A valve rod is arranged in the support, the lower end of the valve rod movably penetrates through the lower end of the splitter plate and is provided with a valve element, an upper side sealing ring and a lower side sealing ring are arranged above the pneumatic actuator, an external thread ring is arranged between the upper side sealing ring and the lower side sealing ring, and two sets of clamping pieces are transversely and symmetrically arranged on the circumferential side of the external thread ring. After the upper side and the lower side of the external thread ring are rotated, the nut drives the connecting ring and the material pushing ring, the material pushing ring can push the upper side sealing ring, the upper side sealing ring is attached to the upper side valve seat and the lower side valve seat, and the sealing effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of switching valves, and in particular to a switching valve for controlling thermal pipelines in a vulcanizing machine. Background Technology

[0002] A switching valve (forced valve) is a pneumatic switching valve installed at the hot end of a switching heat exchanger (or accumulator). It uses the linkage structure principle to open and close the valve plate. During use, sealing rings are provided on the valve stem, valve assembly and valve core to improve the sealing performance during switching.

[0003] The existing sealing rings installed on the valve core are usually directly fitted and embedded on the valve core and valve stem for easy replacement. This results in the sealing rings not being installed tightly enough, making them easy to slide, affecting the sealing effect between the sealing rings and the valve seat, and affecting the use. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a control switching valve for the thermal pipeline of a vulcanizing machine, which can abut the sealing ring, reduce the sliding of the sealing ring, and improve the sealing effect.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A thermal pipeline control switching valve for a vulcanizing machine includes a thermal feed pipe and a valve body disposed on one side thereon. A first discharge pipe and a second discharge pipe are respectively disposed on the lower side and the other side of the valve body. A bracket is disposed on the upper part of the circumferential side of the valve body. A pneumatic actuator is installed on the upper end of the bracket. A flow divider is fixedly connected between the side walls of the valve body.

[0007] A valve stem is provided inside the bracket. The lower end of the valve stem movably passes through the lower end of the diverter plate and is provided with a valve core. An upper sealing ring and a lower sealing ring are provided above the pneumatic actuator. An external threaded ring is provided between the upper sealing ring and the lower sealing ring, and two sets of clamping parts are symmetrically arranged on the circumferential side of the external threaded ring.

[0008] The clamping component includes a nut threaded to the circumferential side of an external threaded ring, a connecting ring fixedly connected to the lower end of the nut, a pusher ring fixedly connected to the lower end of the connecting ring, and the lower end of the pusher ring contacting the upper end of the lower sealing ring.

[0009] In a preferred embodiment, the present invention can be further configured as follows: a lubrication groove is provided inside the bracket, an oil-soaked rope is provided inside the lubrication groove, and a lubricating oil pipe is fixedly connected to the circumferential inner wall of the lubrication groove; a lubricating oil bottle is fixedly connected to the upper end of the valve body; and the upper end of the lubricating oil pipe penetrates the inner bottom wall of the lubricating oil bottle.

[0010] In a preferred embodiment, the present invention can be further configured such that: a filter screen is provided at the inlet of the lubricating oil bottle, and a sealing cap is threadedly connected to the upper circumferential side of the lubricating oil bottle.

[0011] In a preferred embodiment, the present invention can be further configured such that: a toggle block is fixedly connected to the circumferential side of the connecting ring, and the toggle block is fixed to the circumferential side of the pusher ring and the nut.

[0012] In a preferred embodiment, the present invention can be further configured such that: an upper valve seat is installed in the slot of the diverter plate, two mounting bolts are fixedly connected to the upper end of the diverter plate, and the mounting bolts movably pass through the upper end of the upper valve seat, and a connecting nut is threaded on the circumferential side of the mounting bolts.

[0013] In a preferred embodiment, the present invention can be further configured such that: two L-shaped hanging rods are fixedly connected to the upper end of the filter screen, and the shorter end of the L-shaped hanging rod is in contact with the upper end of the lubricating oil bottle.

[0014] In summary, this utility model has at least one of the following beneficial technical effects:

[0015] 1. The valve is equipped with a thermal feed pipe, a first discharge pipe, a second discharge pipe, a valve body, a valve stem, a lower sealing ring, an upper sealing ring, an external threaded ring, a nut, a connecting ring, and a pusher ring. When installing the upper and lower sealing rings, after placing them on top of the valve core and the upper and lower sides of the external threaded ring, rotate the nut. The nut will drive the connecting ring and the pusher ring, which will push the upper sealing ring to fit against the upper and lower valve seats, thus improving the sealing effect.

[0016] 2. It is equipped with a lubrication tank, an oil-soaked rope, a lubrication oil pipe, and a lubrication oil bottle. Lubrication oil is added to the lubrication oil bottle and transported to the oil-soaked rope through the lubrication oil pipe. When the oil-soaked rope is full of lubrication oil, the valve stem comes into contact with the surface of the oil-soaked rope, which can apply the lubrication oil to the surface of the valve stem, thereby achieving the purpose of oiling the valve stem. Attached Figure Description

[0017] Figure 1 This is a three-dimensional representation of the present embodiment;

[0018] Figure 2 This is a perspective sectional view of this embodiment;

[0019] Figure 3 This is the embodiment. Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is the embodiment. Figure 2 A magnified view of a section at point B in the middle;

[0021] Figure 5 This is a partial view of the valve core in this embodiment;

[0022] Figure 6 This is the embodiment. Figure 5 A magnified view of a section at point C.

[0023] In the diagram, 1. Thermal feed pipe; 2. First discharge pipe; 3. Second discharge pipe; 4. Valve body; 5. Bracket; 6. Pneumatic actuator; 8. Valve stem; 10. Upper valve seat; 11. Mounting bolt; 12. Connecting nut; 13. External threaded ring; 14. Lower sealing ring; 15. Upper sealing ring; 16. Nut; 17. Connecting ring; 18. Pushing ring; 19. Oil-soaked rope; 20. Lubrication groove; 21. Lubricating oil pipe; 22. Lubricating oil bottle; 23. Filter screen; 24. L-shaped hanging rod; 25. Diverter plate; 26. Valve core; 27. Actuating block; 28. Sealing cap. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Example:

[0026] Reference Figure 1-5 The present invention discloses a control switching valve for a thermal pipeline of a vulcanizing machine, including a thermal feed pipe 1 and a valve body 4 disposed on one side thereon. A first discharge pipe 2 and a second discharge pipe 3 are respectively disposed on the lower side and the other side of the valve body 4. A bracket 5 is disposed on the upper part of the circumferential side of the valve body 4. A pneumatic actuator 6 is installed on the upper end of the bracket 5. A flow divider 25 is fixedly connected between the side walls of the valve body 4.

[0027] A valve stem 8 is installed inside the bracket 5. The lower end of the valve stem 8 moves through the lower end of the diverter plate 25 and is equipped with a valve core 26. An upper sealing ring 15 and a lower sealing ring 14 are installed above the pneumatic actuator 6. An external threaded ring 13 is provided between the upper sealing ring 15 and the lower sealing ring 14, and two sets of clamping parts are symmetrically arranged on the circumferential side of the external threaded ring 13.

[0028] The clamping component includes a nut 16 threaded to the circumferential side of the external threaded ring 13, a connecting ring 17 fixedly connected to the lower end of the nut 16, a pusher ring 18 fixedly connected to the lower end of the connecting ring 17, and the lower end of the pusher ring 18 contacting the upper end of the lower sealing ring 14.

[0029] In this embodiment, reference Figure 4 The lower sealing ring 14 and the upper sealing ring 15 are positioned such that, when installing the lower sealing ring 14 and the upper sealing ring 15, the lower sealing ring 14 is located between the valve core 26 and the external threaded ring 13, the external threaded ring 13 has a sealing groove on its circumferential side, and the upper sealing ring 15 is located between the top wall of the sealing groove and the external threaded ring 13.

[0030] Although not shown in the preferred figure, the thermal feed pipe 1, the first discharge pipe 2, and the second discharge pipe 3 can be connected to the valve body 4 via flanges;

[0031] refer to Figure 4 The middle nut 16, connecting ring 17 and pusher ring 18 are described above as the clamping member on the lower side. The pusher ring 18 of the upper clamping member is in contact with the lower end of the upper sealing ring 15.

[0032] The specific installation method of the lower sealing ring 14 and the upper sealing ring 15 is as follows: When installing the upper sealing ring 15 and the lower sealing ring 14, after the upper sealing ring 15 and the lower sealing ring 14 are placed on top of the valve core 26, the upper sealing ring 15 and the lower sealing ring 14 are located on the upper and lower sides of the external thread ring 13. Rotate the nut 16, and the nut 16 drives the connecting ring 17 and the pusher ring 18 to move closer to the upper sealing ring 15 and the lower sealing ring 14. This allows the pusher ring 18 to push the upper sealing ring 15, and the upper pusher ring 18 pushes the upper sealing ring 15 to fit against the lower end of the upper valve seat 10. When the first discharge pipe 2 is throttled, the lower sealing ring 14 can fit against the upper part of the lower valve seat to achieve the purpose of sealing, and improve the sealing effect and installation stability of the lower sealing ring 14 and the upper sealing ring 15.

[0033] Preferably, the pneumatic actuator 6 is connected to the valve stem 8 to realize the linear up and down movement of the valve stem 8. It includes a cylinder, a piston connected to the valve stem 8, a return spring and a valve yoke, etc., which are some basic and common-sense mechanical structures, and will not be described here.

[0034] For further details, please refer to Figure 3 The bracket 5 has a lubrication groove 20, and an oil-soaked rope 19 is installed in the lubrication groove 20. A lubricating oil pipe 21 is fixedly connected to the circumferential inner wall of the lubrication groove 20. A lubricating oil bottle 22 is fixedly connected to the upper end of the valve body 4. The upper end of the lubricating oil pipe 21 passes through the inner bottom wall of the lubricating oil bottle 22.

[0035] In this embodiment, reference Figure 3 The oil-soaked rope 19 is fixed inside the lubrication groove 20, but the oil-soaked rope 19 is in contact with the circumferential side of the valve stem 8. When the valve stem 8 moves up and down, lubricating oil can be applied to its surface, making it more convenient to use.

[0036] The upper end of the preferred lubricating oil bottle 22 is fixed with an external threaded filling pipe, and the lubricating oil bottle 22 can store lubricating oil.

[0037] For further details, please refer to Figure 2 A filter screen 23 is provided at the inlet of the lubricating oil bottle 22, and a sealing cap 28 is threadedly connected to the upper circumferential side of the lubricating oil bottle 22.

[0038] In this embodiment, the filter screen 23 is located inside the filling pipe on the upper side of the lubricating oil bottle 22. When the lubricating oil is poured into the lubricating oil bottle 22, the lubricating oil can be filtered to prevent impurities from clogging the lubricating oil pipe 21 and affecting its use.

[0039] The sealing cap 28 is threadedly connected to the external threaded oil filling pipe.

[0040] For further details, please refer to Figure 5 and Figure 6 A toggle block 27 is fixedly connected to the circumferential side of the connecting ring 17, and the toggle block 27 is fixed to the circumferential side of the pusher ring 18 and the nut 16.

[0041] In this embodiment, the connecting ring 17 can be rotated by the toggle block 27, which is convenient to use.

[0042] For further details, please refer to Figure 2 An upper valve seat 10 is installed in the slot of the diverter plate 25. Two mounting bolts 11 are fixedly connected to the upper end of the diverter plate 25, and the mounting bolts 11 move through the upper end of the upper valve seat 10. A connecting nut 12 is threaded on the circumferential side of the mounting bolts 11.

[0043] In this embodiment, the flow divider plate 25 is provided with a flow divider port, and the upper valve seat 10 is installed in the flow divider port. When installing the upper valve seat 10, the position of the upper valve seat 10 can be restricted by inserting the mounting bolt 11 and connecting nut 12, so as to realize the installation of the upper valve seat 10 and facilitate installation and disassembly.

[0044] For further details, please refer to Figure 3 The upper end of the filter screen 23 is fixedly connected to two L-shaped hanging rods 24, and the shorter end of the L-shaped hanging rod 24 is in contact with the upper end of the lubricating oil bottle 22.

[0045] In this embodiment, reference Figure 3 The L-shaped hanging rod 24 is L-shaped. When installing the filter screen 23, the filter screen 23 is inserted into the filling pipe of the lubricating oil bottle 22. The shorter end of the L-shaped hanging rod 24 is directly hung on the upper end of the filling pipe to connect the filter screen 23 and the filling pipe, which facilitates installation and disassembly.

[0046] The implementation principle of the above embodiment is as follows: When installing the upper sealing ring 15 and the lower sealing ring 14, after the upper sealing ring 15 and the lower sealing ring 14 are placed on top of the valve core 26, the upper sealing ring 15 and the lower sealing ring 14 are located on the upper and lower sides of the external thread ring 13. Rotating the nut 16 causes the connecting ring 17 and the pusher ring 18 to move closer to the upper sealing ring 15 and the lower sealing ring 14. This allows the pusher ring 18 to push the upper sealing ring 15, which in turn pushes the upper sealing ring 15 to fit against the lower end of the upper valve seat 10. When the first discharge pipe 2 is throttled, the lower sealing ring 14 can fit against the upper part of the lower valve seat to achieve the purpose of sealing and improve the sealing effect and installation stability of the lower sealing ring 14 and the upper sealing ring 15.

[0047] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0048] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A control switching valve for a thermal pipeline of a vulcanizing machine, comprising a thermal feed pipe (1) and a valve body (4) disposed on one side thereof, characterized in that: The valve body (4) is provided with a first discharge pipe (2) and a second discharge pipe (3) on its lower side and the other side, respectively. A bracket (5) is provided on the upper part of the circumferential side of the valve body (4). A pneumatic actuator (6) is installed on the upper end of the bracket (5). A flow divider (25) is fixedly connected between the side walls of the valve body (4). A valve stem (8) is provided inside the bracket (5). The lower end of the valve stem (8) movably passes through the lower end of the diverter plate (25) and is provided with a valve core (26). An upper sealing ring (15) and a lower sealing ring (14) are provided above the pneumatic actuator (6). An external threaded ring (13) is provided between the upper sealing ring (15) and the lower sealing ring (14), and two sets of clamping parts are symmetrically arranged on the circumferential side of the external threaded ring (13). The clamping component includes a nut (16) threaded to the circumferential side of the external threaded ring (13), a connecting ring (17) fixedly connected to the lower end of the nut (16), a pusher ring (18) fixedly connected to the lower end of the connecting ring (17), and the lower end of the pusher ring (18) in contact with the upper end of the lower sealing ring (14).

2. The control switching valve for the thermal pipeline of a vulcanizing machine according to claim 1, characterized in that: The bracket (5) has a lubrication groove (20) and an oil-soaked rope (19) is provided in the lubrication groove (20). A lubricating oil pipe (21) is fixedly connected to the circumferential inner wall of the lubrication groove (20). A lubricating oil bottle (22) is fixedly connected to the upper end of the valve body (4). The upper end of the lubricating oil pipe (21) penetrates the inner bottom wall of the lubricating oil bottle (22).

3. The vulcanizing machine thermal pipeline control switching valve according to claim 2, characterized in that: A filter screen (23) is provided at the inlet of the lubricating oil bottle (22), and a sealing cap (28) is threadedly connected to the upper circumferential side of the lubricating oil bottle (22).

4. The control switching valve for the thermal pipeline of a vulcanizing machine according to claim 1, characterized in that: The connecting ring (17) is fixedly connected to the circumferential side of the actuating block (27), and the actuating block (27) is fixed to the circumferential side of the pusher ring (18) and the nut (16).

5. A control switching valve for a thermal pipeline of a vulcanizing machine according to claim 1, characterized in that: The upper valve seat (10) is installed in the slot of the diverter plate (25). Two mounting bolts (11) are fixedly connected to the upper end of the diverter plate (25), and the mounting bolts (11) move through the upper end of the upper valve seat (10). The mounting bolts (11) are threaded with connecting nuts (12) on the circumferential side.

6. A control switching valve for a thermal pipeline of a vulcanizing machine according to claim 3, characterized in that: The upper end of the filter screen (23) is fixedly connected to two L-shaped hanging rods (24), and the shorter end of the L-shaped hanging rods (24) is in contact with the upper end of the lubricating oil bottle (22).

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