Manual quick-opening blow-down valve

Abstract

A manual quick-opening blow-down valve comprises a valve body and a valve cover, a valve rod is arranged in the valve body, a valve clack is connected to the valve rod, a valve seat is arranged in the valve body, the valve clack is in sealing fit with the valve seat, the valve rod and the valve clack are of an integrated structure, the manual quick-opening blow-down valve further comprises a handle, and the handle acts on the valve rod and pushes the integrated valve rod and the valve clack to move downwards so that the valve clack can be separated from the valve seat; the first elastic piece pushes the valve rod and the valve clack to move upwards so that the valve clack and the valve seat can be in sealing fit. The cylindrical pin is arranged at the top of the valve rod, and the handle acts on the cylindrical pin to downwards push the valve rod and the valve clack to move downwards; rapid opening and closing are achieved by directly pressing the handle, the spring pushes the valve clack to reset when the handle is loosened, the handle can be loosened as long as discharged media are clean, and the valve can be automatically reset and closed. The whole opening and closing process is direct and rapid, the operation time is short, sealing face washing caused by slow opening and closing of the valve can be effectively reduced, and meanwhile pipeline medium waste caused by untimely closing after pipeline dirt is emptied is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a manual quick-opening sewage valve. Background Art

[0002] During the flow of pipeline media, the dirt in the pipeline will accumulate at a lower point in the pipeline. At this time, sewage treatment is required, but such discharge is not often performed, so the actuator is not used to achieve fast switching, and only manual valves can be selected; among various manual valves, valves with a middle cavity may cause accumulation of debris in the middle cavity, affecting the valve from closing again, so this manual quick-opening sewage valve is developed. Utility Model Content

[0003] In order to solve the technical defects in the prior art, the utility model provides a manual quick-opening sewage valve.

[0004] The technical solution adopted by the utility model is: a manual quick-opening sewage valve, including a valve body and a valve cover, a valve stem is arranged in the valve body, a valve disc is connected to the valve stem, a valve seat is arranged in the valve body, the valve disc and the valve seat are sealed, the valve stem and the valve disc are an integrated structure, and also includes:

[0005] A handle, the handle acts on the valve stem to push the integrated valve stem and valve disc downward to separate the valve disc from the valve seat;

[0006] A first elastic member, wherein the first elastic member pushes the valve stem and the valve disc to move upward so that the valve disc and the valve seat are sealed and matched;

[0007] A cylindrical pin, wherein the cylindrical pin is arranged on the top of the valve stem, and the handle acts on the cylindrical pin to push the valve stem and the valve disc downward;

[0008] The second elastic member pushes the cylindrical pin to move upward and disengage from the top of the valve stem.

[0009] The handle is hinged on the valve cover, and the handle acts on the cylindrical pin through the rotation of the hinge shaft to push the valve stem and the valve disc downward.

[0010] It also includes a valve stem guide sleeve, which is arranged on the outside of the valve stem, and the valve stem and the valve stem guide sleeve are slidably matched.

[0011] A packing is arranged between the valve stem and the valve body, and a packing sleeve is arranged on the packing.

[0012] A packing compression sleeve is also provided on the packing compression sleeve, and the first elastic member is arranged between the packing compression sleeve and the packing compression sleeve. When the valve stem moves downward, it acts on and compresses the first elastic member.

[0013] The second elastic member is arranged between the packing compression sleeve and the valve stem guide sleeve, and when the cylindrical pin moves downward, it drives the valve stem guide sleeve to compress the second elastic member.

[0014] The first elastic member is a disc spring.

[0015] The second elastic member is a cylindrical helical spring.

[0016] The beneficial effects of the utility model are as follows: the utility model provides a manual quick-opening sewage valve, including a valve body and a valve cover, a valve stem is arranged in the valve body, a valve disc is connected to the valve stem, a valve seat is arranged in the valve body, the valve disc and the valve seat are sealed and matched, the valve stem and the valve disc are an integrated structure, and also include a handle, the handle acts on the valve stem, pushes the integrated valve stem and the valve disc to move downward so that the valve disc and the valve seat are separated; the first elastic member pushes the valve stem and the valve disc to move upward so that the valve disc and the valve seat are sealed and matched; the cylindrical pin is arranged on the top of the valve stem, and the handle acts on the cylindrical pin to push the valve stem and the valve disc to move downward; the second elastic member pushes the cylindrical pin to move upward and separate from the top of the valve stem, the utility model directly adopts the method of pressing the handle to open to realize fast switching, and the handle spring is released to push the valve disc to reset, as long as the discharged medium is clean, the handle can be released, and the valve is automatically reset and closed, the whole opening and closing process is direct and rapid, the operation time is short, and the sealing surface scouring caused by the valve being switched too slowly can be effectively reduced, and at the same time, the waste of pipeline medium caused by untimely closing after the pipeline is emptied of dirty sewage can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the valve in the closed state of the utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the valve in the open state of the utility model.

[0019] Among them, 1-valve body, 2-valve stem, 3-valve disc, 4-valve seat, 5-handle, 6-first elastic member, 7-cylindrical pin, 8-second elastic member, 9-guide sleeve, 10-packing pressing sleeve, 11-packing tightening sleeve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] A manual quick-opening sewage valve comprises a valve body 1 and a valve cover, wherein a valve stem 2 is arranged in the valve body 1, a valve disc 3 is connected to the valve stem 2, a valve seat 4 is arranged in the valve body 1, the valve disc 3 is sealed with the valve seat 4, the valve stem 2 and the valve disc 3 adopt an integrated downward-expanding structure, and further comprises a handle 5, wherein the handle 5 acts on the valve stem 2 to push the integrated valve stem 2 and the valve disc 3 downward to separate the valve disc 3 from the valve seat 4; a first elastic member 6, wherein the first elastic member 6 is a disc spring. The first elastic member 6 pushes the valve stem 2 and the valve disc 3 upward to seal the valve disc 3 from the valve seat 4; a cylindrical pin 7, wherein the cylindrical pin 7 is arranged at the top of the valve stem 2, and the handle 5 acts on the cylindrical pin 7 to push the valve stem 2 and the valve disc 3 downward; and a second elastic member 8, wherein the second elastic member 8 is a cylindrical helical spring. The second elastic member 8 pushes the cylindrical pin 7 upward to separate from the top of the valve stem 2. The handle 5 is hinged on the valve cover, and the handle 5 acts on the cylindrical pin 7 through the rotation of the hinge shaft to push the valve stem 2 and the valve disc 3 downward. It also includes a valve stem guide sleeve 9, which is arranged on the outside of the valve stem 2, and the valve stem 2 and the valve stem guide sleeve 9 are slidably matched. A packing is arranged between the valve stem 2 and the valve body 1, and a packing press sleeve 10 is arranged on the packing. A packing pressing sleeve 11 is also arranged on the packing press sleeve 10, and the first elastic member 6 is arranged between the packing press sleeve 11 and the packing press sleeve 10. When the valve stem 2 moves downward, it acts on the first elastic member 6 and compresses the first elastic member 6. The second elastic member 8 is arranged between the packing press sleeve 11 and the valve stem guide sleeve 9, and when the cylindrical pin 7 moves downward, it drives the valve stem guide sleeve 9 to compress the second elastic member 8. The utility model quick sewage valve has no middle cavity, so there is no need to worry about the backlog of the middle cavity medium and the accumulation of dirt in the middle cavity; at the same time, in various manual valves, it is not to use the transmission rotating hand wheel to rotate the valve stem nut to slowly lift the valve stem to realize the valve switch, but directly adopt the method of pressing the handle to open to realize the quick switch, loosen the handle spring to push the valve disc to reset, as long as the discharged medium is clean, you can loosen the handle, the valve will automatically reset and close. Under normal circumstances, the valve is closed under the action of the spring force to achieve the initial seal, and at the same time, the medium force will assist the valve disc to achieve the seal. The greater the pipeline medium force from the bottom of the valve disc, the greater the sealing force of the valve disc sealing surface; the handle adopts a lever pressing structure, when the handle is pressed down, the downward pressure will be pushed downward by the action of the cylindrical pin to open the valve disc, so as to realize the pipeline pressure relief, loosen the handle, and the valve will automatically close under the combined force of the spring force and the medium force; the whole opening and closing process is direct and rapid, the operation time is short, and the sealing surface scouring caused by the valve due to the slow opening and closing can be effectively reduced, and the pipeline medium waste caused by the untimely closing after the pipeline dirt is emptied can be reduced.

[0022] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the utility model concept is not limited to this utility model. Any modification using the utility model concept will be included in the scope of protection of this patent.

[0023] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A manual quick-opening sewage valve, comprising a valve body (1) and a valve cover, wherein a valve stem (2) is provided in the valve body (1), a valve flap (3) is connected to the valve stem (2), a valve seat (4) is provided in the valve body (1), and the valve flap (3) and the valve seat (4) are in sealing cooperation, characterized in that: The valve stem (2) and the valve flap (3) are an integrated structure, and further include: A handle (5), wherein the handle (5) acts on the valve stem (2) to push the integrated valve stem (2) and valve flap (3) downward to separate the valve flap (3) from the valve seat (4); A first elastic member (6), wherein the first elastic member (6) pushes the valve stem (2) and the valve flap (3) to move upward so that the valve flap (3) and the valve seat (4) are sealed and matched; A cylindrical pin (7), wherein the cylindrical pin (7) is arranged on the top of the valve stem (2), and the handle (5) acts on the cylindrical pin (7) to push the valve stem (2) and the valve disc (3) downward; A second elastic member (8), wherein the second elastic member (8) pushes the cylindrical pin (7) to move upward and disengage from the top of the valve stem (2).

2. A manual quick-opening drain valve according to claim 1, characterized in that: The handle (5) is hinged on the valve cover, and the handle (5) acts on the cylindrical pin (7) through the rotation of the hinge shaft to push the valve stem (2) and the valve disc (3) downward.

3. A manual quick-opening drain valve according to claim 1, characterized in that: It also comprises a valve stem guide sleeve (9), wherein the valve stem guide sleeve (9) is arranged on the outside of the valve stem (2), and the valve stem (2) and the valve stem guide sleeve (9) are slidably engaged with each other.

4. A manual quick-opening drain valve according to claim 3, characterized in that: A packing is provided between the valve stem (2) and the valve body (1), and a packing sleeve (10) is provided on the packing.

5. A manual quick-opening drain valve according to claim 4, characterized in that: A packing compression sleeve (11) is also provided on the packing compression sleeve (10), and the first elastic member (6) is arranged between the packing compression sleeve (11) and the packing compression sleeve (10). When the valve stem (2) moves downward, it acts on the first elastic member (6) and compresses the first elastic member (6).

6. A manual quick-opening drain valve according to claim 5, characterized in that: The second elastic member (8) is arranged between the packing compression sleeve (11) and the valve stem guide sleeve (9), and when the cylindrical pin (7) moves downward, it drives the valve stem guide sleeve (9) to compress the second elastic member (8).

7. A manual quick-opening drain valve according to claim 1, characterized in that: The first elastic member (6) is a disc spring.

8. A manual quick-opening drain valve according to claim 1, characterized in that: The second elastic member (8) is a cylindrical helical spring.

Images