CN217325633U

CN217325633U - Anti-leakage vacuum inhibitor

Info

Publication number: CN217325633U
Application number: CN202221012528.7U
Authority: CN
Inventors: 浦胜余; 赵金贵; 翁爱军
Original assignee: Siping Zhongxing Machinery Equipment Co ltd
Current assignee: Siping Zhongxing Machinery Equipment Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-30
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses an antiseep vacuum inhibitor, including having internal thread installation sleeve, the interior bucket of PPR of an inversion is equipped with in the installation sleeve, barrel head central point of bucket in interior bucket is put and is opened there is a central thru hole, a direction sliding sleeve is equipped with in the central thru hole, barrel head around the direction sliding sleeve is opened there are a plurality of bleeder vents, it can be in the direction sliding sleeve gliding guide bar from top to bottom to be equipped with one in the direction sliding sleeve, the upper end of guide bar is equipped with the stop device who prevents the guide bar and fall downwards, be connected with the floater at the guide bar lower extreme, barrel head outer wall edge of bucket has opened sealed rubber ring installation annular in interior bucket, at the embedded silica gel sealing ring that is equipped with of sealed rubber ring installation annular, the silica gel sealing ring can be sealed with the clearance between installation sleeve and the interior bucket to the barrel head of bucket forms and the sealed bung hole of floater matched with silica gel including. The anti-leakage vacuum suppressor is high in sensitivity and good in sealing effect, and leakage cannot occur under the condition that the steady flow tank is kept in pressure for a long time.

Description

Anti-leakage vacuum inhibitor

Technical Field

The utility model relates to a vacuum suppression device, especially an install the antiseep vacuum suppressor at closed water tank top among the no negative pressure water supply system.

Background

A vacuum suppressor is required to be installed on a steady flow tank in a district non-negative pressure water supply system which adopts municipal tap water as a water source, so that negative pressure generated when the secondary water supply amount is larger than the municipal tap water amount is prevented from damaging equipment. CN201531043U discloses a multi-functional negative pressure controller of preventing of network pressure-superposed steady flow jar, should prevent negative pressure controller and include the barrel of vertical setting on the steady flow jar body through the flange, place the floater that the bottom has the guide bar in the barrel, barrel bottom processing has the guiding hole that matches with the guide bar, axial processing has the rivers through-hole on the barrel outside this guiding hole, the barrel middle section of floater top transversely sets up the rigidity median septum, the central point of rigidity median septum puts axial processing and has the circular inlet port that the diameter is less than the floater diameter, still fixed the sealing rubber circle that matches with it on the barrel of rigidity median septum below. The sealing rubber ring in the negative pressure prevention controller can only form sealing at the annular edge contacted with the floating ball, and can not form good sealing between the sealing rubber ring and the cylinder body and the baffle plate, so that when water is filled in the water tank and pressure is continuously maintained, slow leakage can be formed between the sealing rubber ring and the cylinder body and between the sealing rubber ring and the baffle plate, and a small amount of water overflows the flow stabilization tank. In addition, the negative pressure preventing controller with the structure can form rust stains or scale on the surfaces of the guide rod and the guide hole due to the fact that the guide rod and the guide hole are soaked in water for a long time, and accordingly floating sensitivity of the floating ball is affected, and instant water spraying is caused.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is: the anti-leakage vacuum suppressor is high in sensitivity and good in sealing effect, and leakage cannot occur even in a steady flow tank in a long-time pressure maintaining state.

The technical scheme for solving the technical problem is as follows: an anti-leakage vacuum suppressor comprises an internal thread mounting sleeve, the internal thread mounting sleeve is fixed in a water tank corresponding to the position of an exhaust hole at the top of the water tank, an inverted PPR inner barrel is arranged in the mounting sleeve, an external thread matched with the internal thread of the mounting sleeve is arranged on the outer side of the barrel wall of the inner barrel, a central through hole is arranged at the center of the barrel bottom of the inner barrel, a guide sliding sleeve coaxial with the inner barrel is arranged in the central through hole, a plurality of air holes are arranged at the barrel bottom around the guide sliding sleeve, a guide rod capable of sliding up and down in the guide sliding sleeve is arranged in the guide sliding sleeve, a limiting device for preventing the guide rod from falling down is arranged at the upper end of the guide rod, a floating ball is connected at the lower end of the guide rod, a sealing rubber ring mounting ring groove is arranged at the edge of the outer wall of a barrel opening of the inner barrel, a silica gel sealing ring is embedded in the sealing rubber ring mounting groove, and the silica gel sealing ring can seal the gap between the mounting sleeve and the inner barrel, and a silica gel sealing barrel opening matched with the floating ball is formed at the barrel opening of the inner barrel.

As a further improvement of the utility model: the inner wall of the central through hole is provided with an internal thread, the outer wall of the guide sliding sleeve is provided with an external thread, and the guide sliding sleeve is connected with the central through hole through a thread.

As a further improvement of the utility model: the silica gel sealing washer is ƞ shape silica gel sealing washer that the cross-section is horizontal ƞ shape, and the long limit of ƞ shape silica gel sealing washer is down, forms the sealed bung hole of silica gel.

As a further improvement of the utility model: the inner diameter of the silica gel sealing barrel opening is smaller than that of the inner barrel.

As a further improvement of the utility model: the anti-leakage vacuum suppressor also comprises a filter barrel which covers the mounting sleeve and the floating ball buckle, and a plurality of filter holes are formed in the barrel wall and the barrel bottom of the filter barrel.

Has the advantages that: the utility model discloses a silica gel sealing washer can be sealed with the annular gap between installation sleeve and the interior bucket in the antiseep vacuum suppressor, and the bung hole of bucket forms the sealed bung hole with floater matched with silica gel in interior bucket, therefore, it is sealed effectual, the seepage can not take place yet under the long-time pressurize state of stationary flow jar, owing to set up guide bar and direction sliding sleeve in the floater top, can effectively reduce the time of guide bar and direction sliding sleeve and water contact, be favorable to keeping the cleanness of guide bar and direction sliding sleeve, it is more smooth and easy to make the guide bar slide in the direction sliding sleeve, the floater action is more sensitive, prevent that stationary flow jar from intaking in the twinkling of an eye the floater action insensitive and outwards spray water from the bleeder vent. The inner wall of the central through hole is provided with the internal thread, the outer wall of the guide sliding sleeve is provided with the external thread, and the guide sliding sleeve and the central through hole are connected through the thread. Because the silica gel sealing ring is the ƞ -shaped silica gel sealing ring with the cross section in the shape of ƞ transversely arranged, and the long edge of the ƞ -shaped silica gel sealing ring is arranged at the lower part to form the technical characteristic of a silica gel sealing barrel opening, the sealing effect of the floating ball is ensured, and simultaneously, the ƞ -shaped silica gel sealing ring has a better sealing effect on the gap between the mounting sleeve and the inner barrel. Because the technical characteristic that the inner diameter of the silica gel sealing barrel opening is smaller than that of the inner barrel is adopted, the floating ball sealing barrel can play a role in buffering at the moment of contacting with the floating ball, and the floating ball is prevented from being deformed or damaged due to direct collision and contact with the lower edge of the inner barrel. Because the anti-leakage vacuum suppressor also comprises the filter vat which covers the mounting sleeve and the floating ball buckle, and the technical characteristics that a plurality of filter holes are arranged on the vat wall and the vat bottom of the filter vat, on one hand, the influence of waves on the floating ball can be reduced, and on the other hand, the sealing effect can be prevented from being influenced by the fact that impurities enter the filter vat and are stuck on the floating ball or a silica gel sealing ring.

Drawings

The anti-leakage vacuum suppressor of the present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic view of the anti-leakage vacuum suppressor of the present invention.

Detailed Description

As shown in figure 1, the anti-leakage vacuum suppressor of the utility model comprises an internal thread mounting sleeve 10, the internal thread mounting sleeve is fixed in the water tank corresponding to the position of an exhaust hole 1 at the top of the water tank, an inverted PPR inner barrel 6 is arranged in the mounting sleeve, an external thread matched with the internal thread of the mounting sleeve is arranged on the outer side of the barrel wall of the inner barrel, a central through hole is arranged at the central position of the bottom of the inner barrel, a guide sliding sleeve 4 coaxial with the inner barrel is arranged in the central through hole, a plurality of vent holes 5 are arranged at the bottom of the barrel around the guide sliding sleeve, a guide rod 3 capable of sliding up and down in the guide sliding sleeve is arranged in the guide sliding sleeve, a limiting device for preventing the guide rod from falling down is arranged at the upper end of the guide rod, the limiting device is a blocking cap 2 or a blocking piece, a blocking pin and the like, a floating ball 8 is connected at the lower end of the guide rod, a fixing lug 12 protruding out of the surface of the ball body is arranged on the guide rod, the fixed lug is provided with a hinge hole and a hinge pin shaft which are hinged with the guide rod, the edge of the outer wall of the barrel opening of the inner barrel is provided with a sealing rubber ring installation ring groove, a silica gel sealing ring is embedded in the sealing rubber ring installation ring groove, the silica gel sealing ring can seal an annular gap between the installation sleeve and the inner barrel, the barrel opening of the inner barrel forms a silica gel sealing barrel opening 11 matched with the floating ball, the silica gel sealing ring is a ƞ -shaped silica gel sealing ring 7 with a cross section in a horizontal ƞ shape, the long edge of the ƞ -shaped silica gel sealing ring is arranged below to form the silica gel sealing barrel opening, the inner diameter of the silica gel sealing barrel opening is smaller than that of the inner barrel, and the short edge of the ƞ -shaped silica gel sealing ring is embedded in the sealing rubber ring installation ring groove.

Preferably, the inner wall of the central through hole is provided with an internal thread, the outer wall of the guide sliding sleeve is provided with an external thread, and the guide sliding sleeve is connected with the central through hole through the thread, so that the guide sliding sleeve can be conveniently replaced.

Preferably, the anti-leakage vacuum inhibitor further comprises a filter barrel 9 for covering the mounting sleeve and the floating ball buckle therein, and a plurality of filter holes are formed in the barrel wall and the barrel bottom of the filter barrel.

Claims

1. The utility model provides an antiseep vacuum inhibitor, is including having internal thread installation sleeve, the exhaust hole position that internal thread installation sleeve corresponds the water pitcher top is fixed in the water pitcher, characterized by: the inner barrel is characterized in that an inverted PPR inner barrel is arranged in a mounting sleeve, an external thread matched with an internal thread of the mounting sleeve is arranged on the outer side of the barrel wall of the inner barrel, a central through hole is formed in the center of the bottom of the inner barrel, a guide sliding sleeve coaxial with the inner barrel is arranged in the central through hole, a plurality of air holes are formed in the bottom of the barrel around the guide sliding sleeve, a guide rod capable of sliding up and down in the guide sliding sleeve is arranged in the guide sliding sleeve, a limiting device for preventing the guide rod from falling down is arranged at the upper end of the guide rod, a floating ball is connected to the lower end of the guide rod, a sealing rubber ring mounting ring groove is formed in the edge of the outer wall of the barrel opening of the inner barrel, a silica gel sealing ring is embedded in the sealing rubber ring mounting ring groove, the gap between the mounting sleeve and the inner barrel can be sealed, and a silica gel sealing barrel opening matched with the floating ball is formed in the barrel opening of the inner barrel.

2. The leak-proof vacuum inhibitor as recited in claim 1, further comprising: the inner wall of the central through hole is provided with an internal thread, the outer wall of the guide sliding sleeve is provided with an external thread, and the guide sliding sleeve is connected with the central through hole through a thread.

3. The leak-proof vacuum suppressor as claimed in claim 1 or 2, wherein: the silica gel sealing washer is ƞ shape silica gel sealing washer that the cross-section is horizontal ƞ shape, and the long limit of ƞ shape silica gel sealing washer is down, forms the sealed bung hole of silica gel.

4. The leak-proof vacuum inhibitor as set forth in claim 3, wherein: the inner diameter of the silica gel sealing barrel opening is smaller than that of the inner barrel.

5. The leak-proof vacuum inhibitor as recited in claim 4, further comprising: the anti-leakage vacuum suppressor also comprises a filter barrel which covers the mounting sleeve and the floating ball buckle, and a plurality of filter holes are formed in the barrel wall and the barrel bottom of the filter barrel.