CN102135185B

CN102135185B - Test exhaust joint for heating device

Info

Publication number: CN102135185B
Application number: CN201010616033A
Authority: CN
Inventors: 陶忠明
Original assignee: JIAXING MASTER PIPE FITTING CO Ltd
Current assignee: JIAXING MASTER PIPE FITTING CO Ltd
Priority date: 2010-12-27
Filing date: 2010-12-27
Publication date: 2012-09-12
Anticipated expiration: 2030-12-27
Also published as: CN102135185A

Abstract

The invention relates to a test exhaust joint for a heating device, in particular to a test joint applied to testing and exhausting a household air-conditioner, a heating system or various heating devices. The test exhaust joint for a heating device comprises a nut with an inner thread and a joint main body with an outer thread and is characterized by further comprising a test exhaust component, wherein the nut and the joint main body forms a valve body, the joint main body is internally provided with a through hole, the internal diameter of the through hole is smaller than that of the nut, and the a conical surface is connected between the through hole of the joint main body and a through hole of the inner thread. The outer thread at one end of the valve body is connected with an air tester to form an exhaust outlet, and the inner thread at the other end of the valve body is connected with a coolant water pipe or a circulative water pipe to form an air inlet. The test exhaust component comprises a valve core, a seal ring, a closing ring and a spring, wherein the valve core is inserted in the valve body, the seal ring is sleeved at the middle part of the valve core, the closing ring is arranged in the nut, and the spring is sleeved at the lower end of the valve core. The invention overcomes the shortages of undesirable exhaust, water leakage and the like in the traditional air-conditioner, and has the characteristics of convenience for exhaust and use, no water leakage, reasonable structure, safety, reliability, simple manufacture, and the like.

Description

The test vent connection that is used for heating equipment

One, technical field

The present invention relates to a kind of test splice, especially a kind of ability replaces manual bleed valve, is applicable to domestic air conditioning, heating installation or various heating equipment, is specially adapted to hot-water heating, is used to test the also test splice of exhaust.

Two, background technique

Along with improving constantly of the warming of global weather, people's living standard, air-conditioning, heating installation have got into huge numbers of families, and at present, the manual bleed valve of generally installing on air-conditioning, the heating installation often because forget venting, and can not make air-conditioning, heating installation normally bring into play effect; And artificial venting often there are flowing out, and is prone to pollute wall, ground or furniture; Also have, because not discharging in time of air, water flows " to gurgle " at pipeline always and makes a sound, and in early morning, usually from fond dream, stirs us awake.Because air makes progress away the influenced maximum of the family that lives on the top floor.

Three, summary of the invention

The objective of the invention is to solve above-mentioned existing air-conditioning venting undesirable, often deficiency such as there are flowing out; A kind of test vent connection that is used for heating equipment is provided, can replaces manual bleed valve, be applicable to domestic air conditioning, heating installation or various heating equipment; Can test and the interior air of timely blowdown piping; And can prevent that water overflows in the pipeline, make its have venting convenient, do not have the phenomenon of metalling run out, rational in infrastructure, safe and reliable, make characteristics such as simple, easy to use.

The objective of the invention is to adopt following scheme to realize: a kind of test vent connection that is used for heating equipment; It comprises the nut that has internal thread and has externally threaded adapter body; Be characterized in: it also comprises the test exhaust component, and said nut and adapter body constitute valve body, and through hole is arranged in the adapter body; The through hole internal diameter is littler than the internal diameter of nut, and is connected with the conical surface between the through hole of adapter body and the internal thread through hole; The outside thread and the airexamination apparatus of valve body one end are connected to become relief opening, and the internal thread of the other end and refrigerant water pipe or circulating pipe are connected to become suction port; Said test exhaust component comprise dress insert spool in the valve body, be enclosed within the spool middle part seal ring, be contained in the nut to be fixed on the back-up ring in the valve body with the internal thread interference fit and to be enclosed within spool lower end one end and withstand the spring that spool, an end withstand back-up ring.

Above-mentioned spool inserts in the through hole of adapter body of valve body, in valve body, can move up and down, and contact by seal ring between spool and the valve body, utilizes elastic force to make seal ring contact closing seam with the valve body inner conical surface, is used for preventing that the interior water of pipeline from overflowing; Below spool lower end, seal ring, become U-shaped crotch cover upper spring; It is exhaust port that spool middle part, seal ring top are provided with through hole, and the axial direction on spool top has a upright opening to be communicated with exhaust port.

The present invention adopts the beneficial effect of such scheme to be: 1) open or close the passage between joint suction port and the relief opening through moving up and down of spool, the whole measuring header structure of trying is simple, and venting is convenient, low price; 2) test splice all is made up of mechanical part, and joint stimulates the menstrual flow big or small unfettered, safe and reliable; 3) spool of dress seal ring is to adopt spring to support, and utilizes elastic force to make seal ring closed with contacting of valve body inner conical surface, guarantees the sealing under the situation of not exhaust, and guaranteeing does not have the phenomenon of metalling run out; 4) adopt movable connection of spring that spool is moved freely,, cause system can not work and leak so can when long-time running, not produce corrosion; 5) back-up ring is contained in the nut, can be used for withstanding spring spool can be moved up and down, and can also dwindle the space and stop that water overflows in the pipeline.

Four, description of drawings

Fig. 1 is the schematic perspective view that the present invention is used for the test vent connection of heating equipment;

Fig. 2 is the three-dimensional explosive view that the present invention is used for the test vent connection of heating equipment;

Fig. 3 is the main sectional view that the present invention is used for the test vent connection of heating equipment;

Fig. 4 is test vent connection spool that the present invention the is used for heating equipment main sectional view when pressing.

Label declaration in each width of cloth accompanying drawing is following:

The 1-spool; The 1a-exhaust port; The 2-valve body; The 3-seal ring; The 4-spring; The 5-back-up ring; The 6-outside thread; The 7-internal thread.

Five, embodiment

Below in conjunction with accompanying drawing the embodiment that the present invention is used for the test vent connection of heating equipment is described in detail.

Like Fig. 1, shown in 2, for the present invention is used for the schematic perspective view of the test vent connection of heating equipment, a kind of test vent connection that is used for heating equipment; It comprises nut that has internal thread 7 and the adapter body that has outside thread 6; It also comprises the test exhaust component, and said nut and adapter body constitute valve body 2, and through hole is arranged in the adapter body; The through hole internal diameter is littler than the internal diameter of nut, and is connected with the conical surface between the through hole of adapter body and internal thread 7 through holes; The outside thread 6 and the airexamination apparatus of valve body 2 one ends are connected to become relief opening, and the internal thread 7 of the other end is connected to become suction port with refrigerant water pipe or circulating pipe; Said test exhaust component comprise dress insert spool 1 in the valve body 2, be enclosed within spool 1 middle part seal ring 3, be contained in the nut to be fixed on the back-up ring 5 in the valve body 2 with internal thread 7 interference fit and to be enclosed within spool 1 lower end one end and withstand the spring 4 that spool 1, an end withstand back-up ring 5.

As shown in Figure 3, spool 1 inserts in the through hole of adapter body of valve body 2, valve body 2 in, can move up and down, and is contacted by seal ring 3 between spool 1 and the valve body 2, utilizes elastic force to make seal ring 3 contact closing seam with valve body 2 inner conical surfaces, is used for preventing that the interior water of pipeline from overflowing; Below spool 1 lower end, seal ring 3, become U-shaped crotch cover upper spring 4; It is exhaust port 1a that spool 1 middle part, seal ring 3 tops are provided with through hole, and the axial direction on spool 1 top has a upright opening to be communicated with exhaust port 1a.

When chilled water or water flow in refrigerant water pipe or circulating pipe, according to air in pipeline with water together, the proportion of air ratio water is much little; The reason that air is up walked when airexamination apparatus is tested, is pressed lower valve core 1; Seal ring 3 leaves the conical surface; Air in the pipeline just gets into spool 1 from suction port through back-up ring 5, exhaust port 1a, send to the tester confession from relief opening again and test, by with airexamination apparatus testing conduit that outside thread 6 is connected in whether air is arranged; If air is arranged in the pipeline, do not need other operation, directly press lower valve core 1 and get final product; Spool 1 is to lower slider, and pressure spring 4 moves down exhaust port 1a; Main sectional view when spool is pressed is as shown in Figure 4, and the air in pipeline just injects in the spool 1 from exhaust port 1a, gives off outside the pipe again.

Claims

1. test vent connection that is used for heating equipment; It comprises nut that has internal thread (7) and the adapter body that has outside thread (6); It also comprises the test exhaust component, and said nut and adapter body constitute valve body (2), and through hole is arranged in the adapter body; The through hole internal diameter is littler than the internal diameter of nut, and is connected with the conical surface between the through hole of adapter body and internal thread (7) through hole; The outside thread (6) of valve body (2) one ends is connected to become relief opening with airexamination apparatus, and the internal thread of the other end (7) is connected to become suction port with refrigerant water pipe or circulating pipe; Said test exhaust component comprise dress insert spool (1) in the valve body (2), be enclosed within spool (1) middle part seal ring (3), be contained in the nut and be fixed on the back-up ring (5) in the valve body (2) with internal thread (7) interference fit and be enclosed within that spool (1) lower end one end withstands spool (1), an end withstands the spring (4) of back-up ring (5);

It is exhaust port (1a) that said spool (1) middle part, seal ring (3) top are provided with through hole, and the axial direction on spool (1) top has a upright opening to be communicated with exhaust port (1a).

2. the test vent connection that is used for heating equipment according to claim 1; It is characterized in that: in the through hole of the adapter body of said spool (1) insertion valve body (2); In valve body (2), can move up and down; Contact by seal ring (3) between spool (1) and the valve body (2), utilize elastic force to make seal ring (3) contact closing seam with valve body (2) inner conical surface.