Hydraulic drain valve with pressure release valve

Abstract

The hydraulic drain valve with the pressure release valve comprises a main body, the main body comprises a full-drainage buoy assembly and a hydraulic main body assembly which are matched with each other, the hydraulic main body assembly extends outwards to be provided with an extension part, the extension part is provided with a pressure release hole, the main body is provided with a buoy type pressure release valve matched with the extension part, and the buoy type pressure release valve is provided with a pressure release plug matched with the pressure release hole; the water inlet level of the float-type pressure release valve is higher than that of the full-drainage float bowl assembly, the float-type pressure release valve slides upwards on the full-drainage float bowl assembly after being subjected to buoyancy during water inlet, and a pressure release plug on the float-type pressure release valve is inserted into a pressure release hole in the extending part to close the pressure release hole; the pressure relief plug is separated from the pressure relief hole, it is guaranteed that residual liquid in the hydraulic body assembly is rapidly discharged after main body drainage is closed, the structure is compact, and installation and operation are convenient.

Description

Technical field:

[0001] The utility model relates to a drain valve, in particular to a hydraulic drain valve with a pressure relief valve. Background technology:

[0002] In bathroom products, with the development of toilet technology, more requirements are put forward for the water tank accessories. For example, if a traditional drain valve is used for a sunken toilet, it may not be possible to stop the water instantly or the water stop surface may be flushed open after the water stops, resulting in backflow. Furthermore, for products such as sunken toilets or smart toilets, the drain valve may be set in a sealed water tank so that the water tank can have a greater flushing force when flushing. At this time, if a traditional top push-type drain valve or a wire-controlled drain valve is used, the sealing requirements cannot be met. Utility model content:

[0003] In view of the above problems in the prior art, the present invention aims to provide a hydraulic drain valve with a pressure relief valve which has a compact structure and is easy to install and operate.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A hydraulic drain valve with a pressure relief valve includes a main body, which includes a full-row float assembly and a hydraulic main body assembly that cooperate with each other. The hydraulic main body assembly is extended outward to provide an extension portion, and the extension portion is provided with a pressure relief hole. A float-type pressure relief valve is provided on the main body in cooperation with the extension portion, and a pressure relief plug is provided on the float-type pressure relief valve to cooperate with the pressure relief hole; the water inlet level of the float-type pressure relief valve is higher than the water inlet level of the full-row float assembly. When water is taken in, the float-type pressure relief valve slides upward on the full-row float assembly under the buoyancy, and the pressure relief plug on it is inserted into the pressure relief hole on the extension portion to close the pressure relief hole. When draining, the float-type pressure relief valve slides downward before the full-row float assembly, and the pressure relief plug on it is disengaged from the pressure relief hole, ensuring that the residual liquid in the hydraulic body assembly is quickly discharged after the main body drainage is closed.

[0006] Furthermore, the main body also includes a base, a body, a water sealing assembly and a pressure relief valve that cooperate with the full-row float assembly and the hydraulic main body assembly; wherein, the lower part of the base is connected to the drain outlet; the body is buckled on the upper part of the base and rotates axially relative to the base; the full-row float assembly includes a full-row float and a full-row float bracket, the full-row float is arranged in the water storage cavity of the main body and can move up and down, one end of the full-row float bracket is pivotally connected to the main body, and the other end is connected to the full-row float and linked thereto; the hydraulic body assembly includes a hydraulic body with an extension part, a hydraulic rod assembly and a hydraulic cover, the hydraulic body is fixed in the main body, the extension part extends out of the main body, the hydraulic cover is buckled on the hydraulic body, and the hydraulic rod assembly sliding seal is arranged in the hydraulic body; the water sealing assembly is connected below the hydraulic rod assembly and resists the seal at the top of the base; the float-type pressure relief valve is slidably arranged on the main body and cooperates with the extension part of the hydraulic body.

[0007] Furthermore, the buoyant pressure relief valve is slidably connected through the guiding ribs on both sides of its lower part and the guiding grooves on the body, enabling the buoyant pressure relief valve to slide up and down along the guiding grooves; on both sides of the upper part of the buoyant pressure relief valve are the buoyant barrels of the pressure relief valve, and in the middle of the lower part is the pressure relief plug. The buoyant barrels of the buoyant pressure relief valve and the pressure relief plug are connected through a connecting part, and the guiding ribs described above are arranged on both sides of the connecting part.

[0008] Furthermore, for the body, there is a pair of spring catches on its outer lower part. The body is snap-connected to the base through the spring catches and can rotate axially; in the full-drain buoyant assembly, the full-drain buoyant barrel is arranged in the water storage cavity of the body and can move up and down. An adjustment hole is opened on the outer side of the water storage cavity, and an adjustment piece is arranged thereon and can move up and down to control the size of the adjustment hole to change the descending speed of the full-drain buoyant barrel. The full-drain buoyant barrel bracket is pivotally connected to the pivot hole of the body through the rotating shaft on it, and the full-drain buoyant barrel is slidably connected to the guiding groove at the end of the full-drain buoyant barrel bracket through the supporting arm on it, thereby generating linkage with the full-drain buoyant barrel bracket.

[0009] Furthermore, in the hydraulic body assembly, the hydraulic body is fixedly connected to the inside of the body through the buckle at the bottom, the hydraulic cover is buckled on the hydraulic body, the hydraulic rod is slidably arranged in the hydraulic body, the sealing ring is sleeved on the hydraulic rod for sealing, and a spring is arranged between the hydraulic cover and the hydraulic rod and provides a downward force on the hydraulic rod.

[0010] Furthermore, the water sealing assembly includes a sealing cover and a water sealing piece that cooperate with each other. The sealing cover is elastically buckled and connected to the lower part of the hydraulic rod through the elastic buckle on it. The water sealing piece is connected to the lower part of the sealing cover, and the water sealing piece abuts against the base to achieve sealing. When the hydraulic rod receives an upward hydraulic pressure and moves upward, it drives the sealing cover and the water sealing piece to move upward together, so that the hook on the sealing cover hooks on the hanging platform of the full-drain buoyant barrel bracket to open the drainage.

[0011] Adopting the above technical solutions, the present utility model has the following advantages compared with the prior art:

[0012] 1. Compared with the traditional drain valve, the structure is more compact, the height is shorter, and the adaptability is higher;

[0013] 2. A pressure relief valve is arranged at the extension part of the hydraulic body, which can enable the drain valve to close quickly and prevent backflow;

[0014] 3. In addition to the gravity of the sealing cover connected to it, the water sealing piece also receives the pressure of the spring, making the water sealing piece have a higher sealing effect. Brief Description of the Drawings:

[0015] The following is a detailed description of the present utility model with reference to the drawings:

[0016] Figure 1 It is a schematic diagram of the three-dimensional exploded state of the embodiment of the present utility model;

[0017] Figure 2 Combined schematic diagram of the embodiment of the present utility model;

[0018] Figure 3 For the present utility model Figure 2 Schematic cross-sectional structure diagram;

[0019] Figure 4 Schematic diagram of the main body structure of the present utility model;

[0020] Figure 5 Schematic diagram of the full row floating drum structure of the present utility model;

[0021] Figure 6 Schematic diagram of the full row floating drum bracket structure of the present utility model;

[0022] Figure 7 Schematic diagram of the sealing cover structure of the present utility model;

[0023] Figure 8 Schematic diagram of the floating drum type pressure relief valve of the present utility model;

[0024] Figure 9 Schematic diagram of the hydraulic main body structure of the present utility model Figure 1 ;

[0025] Figure 10 Schematic diagram of the hydraulic main body structure of the present utility model Figure 2 . Specific implementation manner:

[0026] The present utility model is described in detail below with reference to the accompanying drawings and embodiments:

[0027] Figures 1 - 10 As shown, it is an embodiment of the present utility model.

[0028] A hydraulic drain valve with a pressure relief valve, on the drain valve main body, there are a base 1, a main body 2, a full row floating drum assembly 3, a hydraulic main body assembly 4, a water sealing assembly 5, a pressure relief valve 6 and an adjusting piece 7 that cooperate with each other; among them:

[0029] The lower part of the base 1 is connected to the drain port.

[0030] The main body 2 has a pair of elastic buckles 21 on its outer lower part, and the main body 2 is clamped on the base 1 through the elastic buckles 21 and can rotate axially.

[0031] The full-drain floating component 3 includes a mutually cooperating full-drain floating barrel 31 and a full-drain floating barrel bracket 32; the full-drain floating barrel 31 is arranged in the water storage cavity 22 of the body 2 and can move up and down. An adjustment hole 23 is provided on the outer side of the water storage cavity, and an adjustment piece 7 is arranged thereon and can move up and down to control the size of the adjustment hole 23 to change the descending speed of the full-drain floating barrel 31; the full-drain floating barrel bracket 32 is pivotally connected to the pivot hole 24 through a rotating shaft 321 thereon, and the full-drain floating barrel 31 is slidably connected to the guide groove 322 at the end of the full-drain floating barrel bracket 32 through an arm 311 thereon, so as to be linked with the full-drain floating barrel bracket 32.

[0032] The hydraulic body component 4 includes a hydraulic body 41 with an extension portion 42, a hydraulic rod assembly 43 and a hydraulic cover 44. The hydraulic body 41 is fixedly connected to the inside of the body 2 through a buckle 411 at its bottom. A pressure relief hole 421 is opened at the bottom of the extension portion 42. The hydraulic cover 44 is buckled on the hydraulic body 41. The hydraulic rod assembly 43 includes a hydraulic rod 431, a sealing ring 432 and a spring 433. The hydraulic rod 431 is slidably arranged in the hydraulic body 41. The sealing ring 432 is sleeved on the hydraulic rod 431 for sealing. The spring 433 is arranged between the hydraulic cover 44 and the hydraulic rod 431 and provides a downward force on the hydraulic rod.

[0033] The water sealing component 5 includes a mutually cooperating sealing cover 51 and a water sealing piece 52. The sealing cover 51 is connected to the lower part of the hydraulic rod 431 through an elastic inverted buckle 511 on it. The water sealing piece 52 is connected to the lower part of the sealing cover 51. The water sealing piece 52 abuts against the base 110 to achieve sealing.

[0034] The pressure relief valve 6 is slidably connected to the guide groove 25 on the body 2 through guide ribs 61 on both sides of its lower part, so that the pressure relief valve 6 can slide up and down along the guide groove 25. When the pressure relief valve 6 slides upward under buoyancy, a pressure relief plug 62 on it is inserted into the pressure relief hole 421 on the hydraulic body 41 and stops rising. At this time, the pressure relief hole 421 is in a closed state, and the liquid in the hydraulic body 41 cannot be relieved of pressure. When the extension portion 42 continuously introduces liquid, the hydraulic rod 431 will be subjected to an upward liquid pressure and move upward, thereby driving the sealing cover 51 and the water sealing piece 52 to move upward together, so that a hook 512 on the sealing cover 51 is hooked on a hanging platform 323 of the full-drain floating barrel bracket 32.

[0035] For the pressure relief valve 6, the upper two sides thereof are pressure relief valve floating barrels 63, and the middle of the lower part is a pressure relief plug 62. The pressure relief valve floating barrels 63 and the pressure relief plug 62 are connected through a connecting portion 64. Guide ribs 61 are arranged on both sides of the connecting portion.

[0036] When the utility model operates, its water stop and sealing state is as follows: when it is installed in a water tank, the extension part 42 of the hydraulic body 41 is connected to a driving pipe (the driving pipe is not shown in the schematic diagram). As the water level in the water tank rises, the full-discharge floating bucket 31 rises and drives the full-discharge floating bucket bracket 32 to rotate. As the water level further rises, the pressure relief valve 6 rises. At this time, the pressure relief plug 62 on the pressure relief valve 6 is inserted into the pressure relief hole 421 on the extension part 42 and stops rising. At this time, the pressure relief hole 421 is in a closed state.

[0037] Its state of opening for flushing is as follows: when the extension part 42 on the hydraulic body is subjected to the driving hydraulic pressure of the driving pipe, since the pressure relief hole 421 is in a closed state at this time, the driving hydraulic pressure acts on the hydraulic rod 431, so that the hydraulic rod 431 overcomes the elastic force of the spring 433, the pressure of the water pressure in the water tank on the sealing cover 51, and their own gravity. Thus, the hydraulic rod 431 drives the sealing cover 51 to move upward until the hook 512 on the sealing cover 51 is hung on the hanging platform 323, and the drain valve is opened. The water level in the water tank begins to drop. When the water level in the water tank drops to a certain height, the pressure relief valve 6 begins to drop. At this time, the pressure relief plug 62 on the pressure relief valve 6 disengages from the pressure relief hole 421 on the extension pipe 42 of the hydraulic body, and the pressure relief hole 421 is in an open state. As the water level further drops, the full-discharge floating bucket 31 begins to drop and drives the full-discharge floating bucket bracket 32 to rotate in the reverse direction. At this time, the hook 512 on the sealing cover 51 disengages from the hanging platform 323, and the hydraulic rod 431 and the sealing cover 51 quickly fall downward under the action of the elastic force of the spring 433 and their own gravity and close the drain valve. Since the pressure relief hole 421 is in an open state at this time, the liquid in the hydraulic chamber 412 can be quickly discharged during the rapid fall of the hydraulic rod 431 and the sealing cover 51 and will not affect the rapid fall of the hydraulic rod 431 and the sealing cover 51.

[0038] It should be noted that no matter where the adjusting piece 7 is adjusted, when the water level in the water tank drops, the pressure relief valve 6 drops earlier than the full-discharge floating bucket 31.

[0039] Compared with the traditional drain valve, the utility model has a more compact structure, a shorter height, and higher adaptability; a pressure relief valve is arranged on the extension part of the hydraulic body, which can make the drain valve close quickly and prevent backflow; in addition to the gravity of the sealing cover connected thereto, the water sealing piece is also subjected to the pressure of the spring, so that the water sealing piece has a higher sealing effect.

[0040] The above description shows and describes the preferred embodiments of the present utility model. As previously mentioned, it should be understood that the present utility model is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. Hydraulic drain valve with pressure relief valve, characterized in that: The drain valve body includes a fully-drain float assembly and a hydraulic main body assembly that cooperate with each other. The hydraulic main body assembly extends outwardly with an extension portion, and a pressure relief hole is formed in the extension portion. A float-type pressure relief valve is provided on the main body to cooperate with the extension portion. A pressure relief plug is provided on the float-type pressure relief valve to cooperate with the pressure relief hole. The water inlet level of the float-type pressure relief valve is higher than that of the fully-drain float assembly. When water enters, the float-type pressure relief valve slides upward relative to the fully-drain float assembly under the buoyancy force, and the pressure relief plug thereon inserts into the pressure relief hole in the extension portion to close the pressure relief hole. When draining water, the float-type pressure relief valve slides downward prior to the fully-drain float assembly, and the pressure relief plug thereon disengages from the pressure relief hole, ensuring that the residual liquid in the hydraulic main body assembly is quickly discharged after the main body drainage is closed.

2. The hydraulic drain valve with a pressure relief valve according to claim 1, characterized in that: The drain valve body further includes a base, a body, a water sealing assembly, and a pressure relief valve that cooperate with the fully-drain float assembly and the hydraulic main body assembly. Among them, the lower part of the base is connected to the drain port; the body is buckled on the upper part of the base and rotates axially relative to the base; the fully-drain float assembly includes a fully-drain float and a fully-drain float bracket. The fully-drain float is arranged in the water storage cavity of the body and can move up and down. One end of the fully-drain float bracket is pivotally connected to the body, and the other end is connected to the fully-drain float and interlocks with it; the hydraulic main body assembly includes a hydraulic main body with an extension portion, a hydraulic rod assembly, and a hydraulic cover. The hydraulic main body is fixed in the body, the extension portion extends out of the body, the hydraulic cover is buckled on the hydraulic main body, and the hydraulic rod assembly is slidably sealed in the hydraulic main body; the water sealing assembly is connected below the hydraulic rod assembly and abuts and seals against the top of the base; the float-type pressure relief valve is slidably arranged on the body and cooperates with the extension portion of the hydraulic main body.

3. The hydraulic drain valve with a pressure relief valve according to claim 2, characterized in that: The float-type pressure relief valve is slidably connected to the body through the guiding ribs on both sides of its lower part and the guiding grooves on the body, so that the float-type pressure relief valve can slide up and down along the guiding grooves. The upper two sides of the float-type pressure relief valve are the pressure relief valve floats, and the middle of the lower part is the pressure relief plug. The pressure relief valve floats and the pressure relief plug of the float-type pressure relief valve are connected through a connecting portion, and the guiding ribs are arranged on both sides of the connecting portion.

4. The hydraulic drain valve with a pressure relief valve according to claim 2 or 3, characterized in that: For the body, there is a pair of spring catches on its outer lower part. The body is snap-connected to the base through the spring catches and can rotate axially. In the fully-drain float assembly, the fully-drain float is arranged in the water storage cavity of the body and can move up and down. An adjustment hole is formed in the outer side of the water storage cavity, and an adjustment piece is arranged thereon and can move up and down to control the size of the adjustment hole to change the descending speed of the fully-drain float. The fully-drain float bracket is pivotally connected to the pivot hole of the body through the rotating shaft thereon, and the fully-drain float is slidably connected to the guiding groove at the end of the fully-drain float bracket through the support arm thereon, thereby interlocking with the fully-drain float bracket.

5. The hydraulic drain valve with a pressure relief valve according to claim 2 or 3, characterized in that: In the hydraulic main body assembly, the hydraulic main body is fixedly connected to the inside of the body through the buckle at the bottom, the hydraulic cover is buckled on the hydraulic main body, the hydraulic rod is slidably arranged in the hydraulic main body, a sealing ring is sleeved on the hydraulic rod for sealing, and a spring is arranged between the hydraulic cover and the hydraulic rod and provides a downward force on the hydraulic rod.

6. The hydraulic drain valve with a pressure relief valve according to claim 2 or 3, characterized in that: The water sealing assembly includes a sealing cover and a water sealing plate that cooperate with each other. The sealing cover is connected to the lower part of the hydraulic rod through the elastic inverted buckle of the sealing cover. The water sealing plate is connected to the lower part of the sealing cover. The water sealing plate and the base are in conflict with each other to achieve sealing. The hydraulic rod moves upward under the upward hydraulic pressure, thereby driving the sealing cover and the water sealing plate to move upward together, so that the hook on the sealing cover is hung on the hanging platform of the full row of float bucket bracket to start drainage.

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