CN2434497Y

CN2434497Y - Reversly stopping pressure relieving valve device with return pressure erelief function

Info

Publication number: CN2434497Y
Application number: CN 00243204
Authority: CN
Inventors: 杨福生
Original assignee: YONGHUAXIN HARDWARE CO Ltd
Current assignee: YONGHUAXIN HARDWARE CO Ltd
Priority date: 2000-07-05
Filing date: 2000-07-05
Publication date: 2001-06-13
Anticipated expiration: 2010-07-05

Abstract

The utility model relates to a non-return pressure relief valve structure device with the function of reflux pressure relief. The utility model is mainly formed by that a small spring, a blocking ring, a water stop ring, a combining column, etc. are additionally arranged in an existing T-shaped pipe valve, particularly in the position of a non-return device arranged between a water inlet and a water outlet, wherein, the combining column is provided with a thick column body and a thin column body. As a result, when the water pressure of the end of the water outlet exceeds a set value, partial reflux is carried out so as to release the pressure to the end of the water inlet.

Description

The check pressure-relief valve structure device of tool backflow release of pressure function

The utility model relates to a kind of check pressure-relief valve structure device of tool backflow release of pressure function.

Existing storage-type electric water heater, its heated hot water very likely can be back to the water inlet pipe of front end after the user turns off the tap, because this heated hot water has bigger heat expansion effect, if when meeting water heater again and burning because of the inner body fault is empty, the easier water pipe that causes front end breaks because of internal pressure is excessive and leaks, and causes wall infiltration or protuberance, the user just must hire the workman to knock whole face wall open, repair the water pipe that breaks so that change, then restore to the original state utmost point troublesome again.So, now generally can set up a water valve with check function and pressure release function, to eliminate aforesaid drawbacks at heater inleting pipe's front end.But the creator finds existing check Decompression valves, and its pressure relief device all is the single flow direction of tool only, that is can only do unidirectional check action; But actual the use gone up discovery, if can increase the reverse release of pressure function that low pressure refluxes, can more increase effective utilization, and in view of this, creator spy makes great efforts in the innovation improvement.

The purpose of this utility model is to provide a kind of check pressure-relief valve structure device of tool backflow release of pressure function, in existing non-return device, have additional by little spring, baffle ring, water stop ring and and have the structures such as column that thick cylinder and buttress shaft body are constituted, so, when the hydraulic pressure of water outlet end surpassed the elastic force of little spring, the release of pressure that refluxed was to water inlet end place.

The purpose of this utility model can reach by following measure:

A kind of check pressure-relief valve structure device of tool backflow release of pressure function is in the body of T font, is provided with a non-return device and pressure relief device, wherein:

This body has water inlet, water outlet and an arm, and this arm is provided with a relief tube again again;

Pressure relief device is in order to being installed in the arm, and it includes cock body, block, spring and sealed body;

This non-return device is the water outlet end inner edge place that is installed in body, includes screw, binding block, lock body, big spring, little spring, baffle ring, water stop ring, base ring, packing ring and column etc.; Wherein:

Screw, the bottom is provided with external screw thread;

Binding block can be in order to screw lock in the water outlet end place, and its central authorities are provided with perforation, and this perforation can be passed by screw;

Lock body, central authorities are provided with the perforation of a tool internal screw thread, and this perforation can be sealed by the external screw thread of screw, and this lock body bottom is provided with a projection;

Big spring is located between binding block and base ring;

Little spring is located between lock body and baffle ring, and its top merges the projection location that utilizes lock body;

Baffle ring, section are the U font, and central authorities are provided with a perforation;

Water stop ring, central authorities are provided with perforation;

Base ring, water stop ring can be limited in the top, and central authorities are provided with perforation;

Packing ring, central authorities are provided with perforation;

Column, the top has internal screw thread, and its cylinder includes the thick cylinder of bottom, and the buttress shaft body that is positioned at thick cylinder top.

The utility model has following advantage compared to existing technology: in original non-return device, set up the structure with backflow release of pressure function, so, can more increase the telotism and the functional promotion of the existing valve body of this kind.

Now careful the cooperation illustrates preferred embodiment of the present utility model.

[illustrating]

Fig. 1. be three-dimensional exploded view of the present utility model.

Fig. 2. be sectional drawing of the present utility model.

Fig. 3. the section movement state diagram when being the utility model water inlet.

Fig. 4. the section movement state diagram when being the utility model check and backflow release of pressure.

Fig. 5. be partial enlarged drawing for Fig. 4.

Fig. 6. the section movement state diagram when being the utility model check and high pressure relief.

Fig. 7. be the partial enlarged drawing of Fig. 6.

Head sees also Fig. 1, shown in Figure 2, and the check pressure-relief valve structure device of tool backflow release of pressure function of the present utility model is in the body 1 of T font, is provided with a non-return device 2 and pressure relief device 4, wherein:

This body 1 has water inlet 10, water outlet 11 and an arm 12, and this arm 12 is provided with a relief tube 13 again again;

This non-return device 2 is the water outlet 11 end inner edge places that are installed in body 1, includes screw 20, binding block 21, lock body 22, big spring 23, little spring 24, shelves ring 25, water stop ring 26, base ring 27, packing ring 28 and column 29 etc.; Wherein:

Screw 20, bottom are provided with external screw thread 201;

Binding block 21 can be in order to screw lock in water outlet 11 end places, and its central authorities are provided with perforation 210, and this perforation 210 can be passed by screw 20;

Lock body 22, central authorities are provided with the perforation 221 of a tool internal screw thread, and this perforation 221 can be sealed by the external screw thread 201 of screw 20, and these lock body 22 bottoms are provided with a projection 222;

Big spring 23 is located in 27 of binding block 21 and base rings;

Little spring 24 is located in 25 of lock body 22 and baffle rings, and its top merges projection 222 location that utilize lock body 22;

Baffle ring 25, section are the U font, and central authorities are provided with a perforation 251;

Water stop ring 26, central authorities are provided with perforation 261;

Base ring 27, water stop ring 26 can be limited in the top, and central authorities are provided with perforation 271;

Packing ring 28, central authorities are provided with perforation 281;

Column 29, top have internal screw thread 291, and its cylinder includes the thick cylinder 292 of bottom, and the buttress shaft body 293 that is positioned at thick cylinder 292 tops;

After last group of structure combination, promptly as shown in Figure 2.

The utility model still includes in addition;

Pressure relief device 4 is in order to being installed in the arm 12, and it includes cock body 41, block 42, spring 43 and sealed body 44.

When current entered body 1 by water inlet 10, current made it to move and push big spring 23 compressions with ejection packing ring 28 (as Fig. 3), and current can flow out from water inlet 10 inflow bodies 1 and from water outlet 11 smoothly.

When water outlet 11 ends have low pressure hydraulic pressure, current will push column 29 and move outside water inlet 10 ends, force little spring 24 slightly to be compressed, water stop ring 26 will change to buttress shaft body 293 from originally being positioned at thick cylinder 292 places this moment, because 293 of the inside of water stop ring 26 and buttress shaft bodies produce the gap, therefore current are utilized this gap to reflux, and as Fig. 4 and shown in Figure 5.

When water outlet 11 ends have high pressure hydraulic pressure, these current still can force column 29 to move outside water inlet 10 ends, but because of the pressure of this hydraulic pressure elastic force much larger than little spring 24, therefore can and be covered on baffle ring 25 tops with lock body 22 pushings, make and cause this lock body 22 and almost be closed with baffle ring 25, promptly can't allow water continue to flow back into the mouth of a river 10 ends this moment, these current will then flow to arm 12, and pushing spring 43 compressions, make and cause cock body 41 and block 42 whole outer moving, cock body 41 will no longer seal, and this moment, current can flow to the discharging of relief tube 13 places via arm 12; Just can stop pressure release automatically up to inner pipe water pressure during less than the elastic force of spring 43.

Hence one can see that, and when the utility model is slightly larger than little spring 24 but less than spring 43 when the hydraulic pressure of water outlet 11 ends, current will utilize the gap of 26 of column 29 and water stop rings to flow back into water inlet 10 end releases of pressure; And when the hydraulic pressure of water outlet 11 ends greater than little spring 24 during also greater than spring 43, this hydraulic pressure will be by relief tube 13 end pressure releases; So, promptly form the two-part pressure release function of the utility model initiative.

In sum, the check pressure-relief valve structure device of the utility model tool backflow release of pressure function, improvement effect is remarkable, can promote effectiveness and Security really, and its rich tool creativity, novelty and practicability are so propose patent application in accordance with the law; Though the utility model discloses as above with a preferred embodiment in addition, so it is not in order to qualification the utility model, and therefore, all equivalences of doing according to technical solutions of the utility model are replaced, and all should be included in the technical solution of the utility model protection domain.

Claims

1. the check pressure-relief valve structure device of a tool backflow release of pressure function is in the body [1] of T font, is provided with a non-return device [2] and pressure relief device [4], wherein:

This body [1] has water inlet [10], water outlet [11] and an arm [12], and this arm [12] is provided with a relief tube [13] again again;

Pressure relief device [4] is in order to being installed in the arm [12], and it includes cock body [41], block [42], spring [43] and sealed body [44];

It is characterized in that:

This non-return device [2], be water outlet [11] the end inner edge place that is installed in body [1], include screw [20], binding block [21], lock body [22], big spring [23], little spring [24], baffle ring [25], water stop ring [26], base ring [27], packing ring [28] and column [29] etc.; Wherein:

Screw [20], bottom are provided with external screw thread [201];

Binding block [21] can be in order to screw lock in water outlet [11] end place, and its central authorities are provided with perforation [210], and this perforation [210] can be passed by screw [20];

Lock body [22], central authorities are provided with the perforation [221] of a tool internal screw thread, and this perforation [221] can be sealed by the external screw thread of screw [20] [201], and this lock body [22] bottom is provided with a projection [222];

Big spring [23] is located between binding block [21] and base ring [27];

Little spring [24] is located between lock body [22] and baffle ring [25], and its top merges projection [222] location that utilizes lock body [22];

Baffle ring [25], section is the U font, and central authorities are provided with a perforation [251];

Water stop ring [26], central authorities are provided with perforation [261];

Base ring [27], top can limit water stop ring [26], and central authorities are provided with perforation [271];

Packing ring [28], central authorities are provided with perforation [281];

Column [29], top have internal screw thread [291], and its cylinder includes the thick cylinder [292] of bottom, and the buttress shaft body [293] that is positioned at thick cylinder [292] top.