CN206488905U - Heater tank leakage detection apparatus - Google Patents

Abstract

The utility model discloses a kind of heater tank leakage detection apparatus, it is connected on the water inlet pipe of heater tank, the heater tank leakage detection apparatus includes the snap joint on connection water inlet pipe, inflator pump, Pressure monitoring instrument, and flexible pipe, it is characterized in that, the snap joint includes one end air inlet, the breather pipe that one end is blocked, and it is arranged with sliding sleeve outside the hose coupling turned on breather pipe, one end of the inlet end away from breather pipe is provided with top plate on sliding sleeve, shell is arranged with outside sliding sleeve, by being provided with rotating shaft on the direction of breather pipe axis on shell, handle is rotatably connected in rotating shaft, the distance between rotating shaft and top plate are less than the radius of handle, in air inlet pipe fixed back-up ring is provided with the end away from handle, the outer slip cap of air inlet pipe is provided with slip back-up ring, and the both sides of slip back-up ring are each provided with least one airtight cushion rubber, pass through the structural change to snap joint, so that snap joint possesses more reliable sealing, it is adapted to the operating mode of compressed gas source leak detection.

Description

Heater tank leakage detection apparatus

Technical field

The utility model is related to a kind of detection means of air-conditioning heating part, more particularly to a kind of promise wind leakage of water tank dress Put.

Background technology

Heater tank is the heating parts in a kind of air conditioning for automobiles, is passed through hot water when using into heater tank, and use wind By heat derives.The sealing of heater tank directly affects its normal work, therefore, and heater tank is before dispatching from the factory, it is necessary to carry out Leak detection, now use for leakage detection apparatus.

It is existing using air compressor as leak detection source of the gas detection means in, generally comprise compressed gas source and air pressure inspection Instrument is surveyed, both are connected on the water inlet pipe on heater tank by flexible pipe, and utilize snap joint by the water outlet on heater tank Duct occlusion.

But, water inlet pipe and outlet pipe on heater tank are stereoplasm tube, and the tracheae on compressed gas source is flexible pipe, The snap joint that both junctions are used is often in the presence of leakage, it is necessary to coordinate other sealing devices as sealed supplement.For example Authorization Notice No. is discloses a kind of portable vehicle radiating leakage detection apparatus in CN201852685U utility model patent, it is wrapped Box body and the pressure gauge being arranged in box body, plug component, gas-charging connection and check valve connection are included, check valve is connected by tracheae Pressure gauge is connect, pressure gauge connects two position three way directional control valve by tracheae, and the gas outlet of two position three way directional control valve is connected by tracheae Plug component, in use, squeezing into gas into gas-charging connection by way of manually inflating, then passes through two position three way directional control valve Plug component closing gas outlet is aided in, observation squeezes into whether atmospheric pressure value has pressure drop, so as to detect heater tank with the presence or absence of leakage Problem.

But during actual use, what is be filled with heater tank is the hot water circulated, and its pressure is that common mode of inflating is difficult With what is reached, therefore, this portable leakage detection apparatus, substantial leak detection effect is extremely difficult to general be examined with air compressor machine The effect of leakage.

Utility model content

The purpose of this utility model is to provide a kind of heater tank leakage detection apparatus, and it is changed by the structure to snap joint Become so that snap joint possesses more reliable sealing, be adapted to the operating mode of compressed gas source leak detection.

Above-mentioned purpose of the present utility model technical scheme is that：A kind of heater tank leak detection dress Put, be connected on the water inlet pipe of heater tank, the heater tank leakage detection apparatus is including connecting the snap joint on water inlet pipe, filling Air pump, Pressure monitoring instrument, and flexible pipe, it is characterized in that, the breather pipe that the snap joint includes one end air inlet, one end is blocked, And one end of inlet end away from breather pipe on sliding sleeve, sliding sleeve is arranged with outside the hose coupling turned on breather pipe is provided with top It is arranged with outside plate, sliding sleeve on shell, shell by being provided with the company of rotation in rotating shaft, rotating shaft on the direction of breather pipe axis Handle is connected to, the distance between rotating shaft and top plate are less than in the radius of handle, the air inlet pipe to be set on the end away from handle There is a fixed back-up ring, the outer slip cap of air inlet pipe slides the both sides of back-up ring to be each provided with least one airtight provided with sliding back-up ring Cushion rubber.

By using above-mentioned technical proposal, the distance between rotating shaft and top plate are less than the radius of handle, then turn around the shaft Be located at one section between rotating shaft and top plate equivalent to one eccentric briquetting during fixed handle, on handle, can downward coping, top plate by Then sliding sleeve is moved downward pressure, and the airtight cushion rubber between the end of sliding sleeve and slip back-up ring slides back-up ring by the extruding that moves down of sliding sleeve Continuation downwards extrudes the airtight cushion rubber slided between back-up ring and fixed back-up ring so that airtight cushion rubber is that middle part is convex because two ends are pressurized Rise, form a convex drum type structure, when the water inlet pipe of the hard of heater tank is stretched into this part of snap joint, the gas of protrusion With the space inside stereoplasm tube outside close cushion rubber filling breather pipe, to form more reliable airtight construction.When snap joint is close When sealing water inlet pipe with flexible pipe, the gas in inflator pump fully enters heater tank, reduces in the joint of flexible pipe and water inlet pipe Leakage.

Preferably, snap joint is also equipped with the outlet pipe of heater tank, the hose coupling of the snap joint passes through silk Stifled sealing.

By using above-mentioned technical proposal, the hose coupling in snap joint is sealed with plug, then breather pipe is to block shape State, gas can not be flowed in and out, and utilize the excellent airtight sealing outlet pipe of snap joint, it is possible to reduce what inflator pump was filled with Leakage of the gas in the water outlet pipe part of heater tank.

Preferably, one end of the rotating shaft is provided with block, the other end and is provided with draw ring, between draw ring and the outer wall of shell It is provided with and limits the locking device that handle is rotated.

By using above-mentioned technical proposal, the setting of block can prevent rotating shaft from deviating from handle and shell, to keep handle Rotation annexation is remained with shell；The blowing pressure of inflator pump it is higher or imprudence touch handle, hand may be made Handle, which is rotated, unclamps airtight cushion rubber, recovers it, sets up locking device, the rotary state of direct lock handle can be kept airtight Cushion rubber remains at middle part protrusion in the state of convex type when needed.

Preferably, the locking device includes：

Rotating shaft limiting plate, has two and extends from the outer wall vertical of shell in ventilation tube axis direction, two rotating shaft limiting plates Between formed close up；

Limited mouth, is arranged at the rotation junction of handle；

Rotary spacing block, the embedded limited mouth is so that rotating shaft links with handle；

Screens section, is arranged at the one end for extending shell in rotating shaft, is formed between geomery and two rotating shaft limiting plates Close up adaptation；

Linkage section, extends, its size is less than the closing in formed between two rotating shaft limiting plates from screens section to draw ring direction.

By using above-mentioned technical proposal, the Qian He of limited mouth and rotary spacing block makes to link between handle and rotating shaft, this The rotation of Shi Suoding rotating shafts can limit the rotation of handle；Formed and closed up between two rotating shaft limiting plates, equivalent to one fore shaft, When screens section enter close up when, due to screens section be four prism type, rotating shaft close up in can not rotate, reach lock rotating shaft and then The purpose of lock handle；The size of linkage section is less than closing in size, therefore it can freely be rotated in closing up, when driving draw ring Make linkage section into during closing in, rotating shaft is in free rotary state, and now handle can also be rotated freely.

Preferably, the flexible pipe includes the second flexible pipe being connected on inflator pump and is connected to quickly connecing on water inlet pipe The branch pipe for being connected to Pressure monitoring instrument, first flexible pipe and the second flexible pipe are set on the first flexible pipe of head, first flexible pipe Between be provided with oil water separator.

By using above-mentioned technical proposal, the gas that inflator pump comes out first passes around profit point before heater tank is entered Purified from device, can prevent from being filled with the gas of heater tank containing impurity, and then prevent impurity residual in heater tank Stay and corrode heater tank inwall.

Preferably, the air inlet of the oil water separator with the extension tube attached for connecting flexible pipe is provided with gas outlet, Each connected between the extension tube attached and flexible pipe by snap joint.

By using above-mentioned technical proposal, flexible pipe and the pipe joint of oil water separator, Ke Yiti are used as by the use of snap joint Rise the air-tightness of junction.

In summary, the utility model has the advantages that：The distance between rotating shaft and top plate are less than the half of handle Footpath, then be located at one section between rotating shaft and top plate equivalent to one eccentric briquetting when rotating around the axis handle, on handle, can be to Lower coping, then sliding sleeve is moved downward for top plate compression, and the airtight cushion rubber between the end of sliding sleeve and slip back-up ring is by under sliding sleeve Move extruding, slide back-up ring and continue extruding downwards and slide airtight cushion rubber between back-up ring and fixed back-up ring so that airtight cushion rubber due to It is central raised that two ends, which are pressurized, forms a convex drum type structure, the hard of heater tank is stretched into this part of snap joint It is more reliable airtight to be formed with the space inside stereoplasm tube outside the airtight cushion rubber filling breather pipe of protrusion during water inlet pipe Structure.When snap joint sealing water inlet pipe and flexible pipe, the gas in inflator pump fully enters heater tank, reduce flexible pipe with The leakage of the joint of water inlet pipe.

Brief description of the drawings

Fig. 1 is the overall structure and operation principle schematic diagram of heater tank leak detection system；

Fig. 2 is the structural representation of quick connector impaction state；

Fig. 3 is the quick connector part explosive view for embodying quick connector internal structure；

Fig. 4 is the A portions enlarged drawing for the Fig. 3 for embodying quick connector pivot structure；

Fig. 5 is the Fig. 3 done for display shaft hole and spacing mouth structure B portions enlarged drawing.

In figure, 1, snap joint；10th, breather pipe；11st, fixed back-up ring；12nd, back-up ring is slided；13rd, hose coupling；14th, it is sliding Set；140th, top plate；141st, sliding sleeve pressure end；15th, shell；150th, rotating shaft limiting plate；16th, handle；160th, shaft hole；161st, it is spacing Mouthful；17th, rotating shaft；170th, rotary spacing block；171st, screens section；172nd, linkage section；173rd, draw ring；174th, block；

18th, airtight cushion rubber；

2nd, heater tank；20th, outlet pipe；21st, water inlet pipe；

3rd, oil water separator；30th, extension tube attached；

4th, the first flexible pipe；

5th, the second flexible pipe；

6th, air pressure detector；60th, gas feed；61st, dial plate；

7th, inflator pump.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment

A kind of heater tank leakage detection apparatus, as shown in fig. 1, is connected on heater tank 2, for detecting its sealing, Include snap joint 1, oil water separator 3, the first flexible pipe 4, the second flexible pipe 5, air pressure detector 6 and inflator pump 7.Inflator pump 7 by the outside output squeezing gas of the second flexible pipe 5, and gas is entered in oil water separator 3 by snap joint 1 first, Ran Houcong Drawn in snap joint 1 on the gas outlet of oil water separator 3, then pass through the water inlet pipe of a snap joint 1 entrance heater tank 2 21, a snap joint 1 is connected on the outlet pipe 20 of heater tank, for sealing water outlet pipe 20.Water inlet pipe 21 and water-oil separating The first flexible pipe of connection 4 between two snap joints 1 on the gas outlet of device 3, is provided with a branch pipe, the branch pipe is connected to On Pressure monitoring instrument 6, for being shown in Pressure monitoring instrument 6 on water inlet pipe 21.

Specifically, reference picture 2 and Fig. 3, snap joint 1 include breather pipe 10, one end air inlet of breather pipe 10, another The hose coupling with the body normal of breather pipe 10 is provided with one end closing, breather pipe 10 at the position of closing one end 13, also, one end of hose coupling 13 is used to connect flexible pipe, the other end and connect with breather pipe 10, to realize the conducting of gas.

One end outer ring of the upper air of breather pipe 10 is provided with fixed back-up ring 11, and fixed back-up ring 11 is that diameter is more than air inlet pipe 10 The projection of outer wall dimension, air inlet pipe 10 is outer to be also arranged with the slip back-up ring 12 that can be slid along the axis direction of air inlet pipe 10.It is sliding The axis direction both sides of air inlet pipe 10 are provided with an airtight cushion rubber 18 on dynamic back-up ring 12.

Sliding sleeve 14 is arranged with outside breather pipe 10, its one end is provided with top plate 140, the other end and penetrates and contradict for air inlet pipe 10 With the end of airtight cushion rubber 18, sliding sleeve pressure end 141 is formed, also, under unstressed state, airtight cushion rubber 18 is along breather pipe 10 axis direction is unfolded, now, and gap is left between one end top surface of the closing of top plate 140 and breather pipe 10.

Being coaxially set on top plate 140 with breather pipe 10 has handle 16, and handle 16 outside breather pipe 10 with being provided with shell 15, the upper end level of shell 15 wears a rotating shaft 17, and handle 16 is rotated with shell 15 by rotating shaft 17 and is connected, and handle 16 is provided with Shaft hole 160 for wearing rotating shaft 17, and the distance of shaft hole 160 and the nearlyer one end of handle 16 is less than the half of handle 16 Footpath, so that when the axis hole 160 that rotates rotates handle 16, top plate can be extruded or unclamp close to the end of top plate 140 on handle 16 140, to drive axis direction of the sliding sleeve 14 along breather pipe 10 to slide.

1 point of snap joint is to loosen with compressing two states：

When snap joint 1 is in relaxation state, with shell 15 point-blank, handle 16 is to sliding sleeve 14 for handle 16 Active force is smaller, and the two airtight two ends of cushion rubber 18 compressions are smaller, keep original shape.

When snap joint 1 is in impaction state, handle 16 is rectangular with shell 15, because rotating shaft 17 is on shell 15 Position is fixed, and the distance of shaft hole 160 and the nearer end of handle 16 is less than the radius of handle 16, so snap joint 1 is from loosening State Transferring is to after impaction state, and sliding sleeve 14 is pressed downward by the end of handle 16, and sliding sleeve pressure end 141 extrudes airtight cushion rubber 18. Two folded airtight cushion rubbers 18 between sliding sleeve pressure end 141,11 3 structures of slip back-up ring 12 and fixed back-up ring, one end is by solid Determine the position-limiting action of back-up ring 11, the other end is pressed down against by sliding sleeve pressure end 141, occur in elastic deformation, airtight cushion rubber 18 Portion's outwardly convex is in protruding drum-shaped, equivalent to the caliber for this position for expanding breather pipe 10, when this one end of breather pipe 10 is stretched When entering in other bodys, between the airtight cushion rubber 18 of evagination can be between sealing ventilation pipe 10 and the inwall of its body inserted Gap, plays airtight effect.

In order that airtight cushion rubber 18 middle part after compression is in arc-shaped evagination, the two ends diameter of airtight cushion rubber 18 should be slightly less than Mid diameter, i.e., airtight cushion rubber 18 is that the ledge diameter of convex type structure after convex type, compression enters when not compact The increase of one step, forms shape shown in Fig. 2.

As shown in Fig. 3 and Fig. 5, two limited mouths 161, limited mouth are provided with the same diametric(al) of shaft hole 160 161 arrange along the axis direction of shaft hole 160.Accordingly, as shown in Figure 4, the middle part of rotating shaft 17 is provided with geomery and limit The rotary spacing block 170 that position mouth 161 is adapted to, when rotating shaft 17 penetrates shaft hole 160, the insertion limited mouth 161 of rotary spacing block 170 It is interior, so as to ensure to link between handle 16 and rotating shaft 17, you can the rotation by limiting rotating shaft 17 limits handle 16 and rotated.Rotating shaft 17 can slide axially in shaft hole 160.

Reference picture 4, the two ends of rotating shaft 17, one end is installed with a draw ring 173, and the other end is a block 174, drives draw ring 173 can vertically be slid with drive shaft 17.On the outer wall of shell 15 towards draw ring 173 set one end be extended with two it is spacing Plate 150, two limiting plates 150 are that L-type is set, to form a closing in the end close to draw ring 173.

The part of shell 15 is stretched out in rotating shaft 17, close to screens section 171 of the part of the outer wall of shell 15 for quadrangular shape, screens The end of section 171 extends to form cylindric linkage section 172 to the direction of draw ring 173, and draw ring 173 is arranged in the end of linkage section 172 Portion.

With reference to Fig. 2 and Fig. 4, when snap joint 1, which is in, to be loosened with compressing two states, screens section 171 has two to put down Capable face can be caught in the closing in formed between two rotating shaft limiting plates 150.Draw ring 173 is now pulled, screens section 171 is caught in this In closing up, then the rotation of rotating shaft 17 is defined, so that the rotation of handle 16 is also defined, now, rotating shaft limiting plate 150, The locking device of screens section 171, rotary spacing block 170 and one rotary state of lock handle 16 of formation of limited mouth 161, by hand Handle 16 is defined in impaction state, so that the more reliable sealing of the evagination of airtight cushion rubber 18 formation, unclamps without turning round.

Plug is optionally provided with hose coupling 13, for the snap joint 1 being arranged on outlet pipe 20, to seal Outlet pipe 20, prevents gas from leaking from there.

Two extension tube attacheds 30 are extended at the two ends of oil water separator 3, and two extension tube attacheds 30 are all connected with a fast connector 1, One of snap joint 1 is connected with the first flexible pipe 4, and another snap joint 1 is connected to the second flexible pipe 5, the second flexible pipe 5 it is another One end is connected with an inflator pump 7.Also there is a bifurcated on first flexible pipe 4, the gas feed 60 of air pressure detector 6 is connected to On, also there is the dial plate 61 of display internal system air pressure on air pressure detector 6.

The course of work of heater tank leak detection system is as follows, starts inflator pump 7, and air-flow enters oil by the second flexible pipe 5 Separator 3, enters the first flexible pipe 4, then be flowed into heater tank 2 by the first flexible pipe 4 by oil water separator 3.First Branch pipe connection air pressure detector 6 on flexible pipe 4, because air pressure detector 6 is connected with heater tank 2, so air pressure is detected Air pressure shown by the dial plate 61 of instrument 6 is the air pressure in heater tank 2.

When the numerical value of dial plate 61 reaches a fixed value（Depending on the specification of heater tank 2）, inflator pump 7 is closed, is waited After a period of time, if the numerical value change of dial plate 61 is less, and stably in a numerical value.Then the air-tightness of heater tank 2 is good, no Then there is problem.

This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but As long as all being protected in right of the present utility model by Patent Law.

Claims (6)

1. a kind of heater tank leakage detection apparatus, is connected to the water inlet pipe of heater tank（21）On, the heater tank leakage detection apparatus Including connection water inlet pipe（21）On snap joint（1）, inflator pump（7）, Pressure monitoring instrument（6）, and flexible pipe, it is characterized in that, The snap joint（1）The breather pipe blocked including one end air inlet, one end（10）, and and breather pipe（10）The flexible pipe of conducting connects Head（13), air inlet pipe（10）It is arranged with sliding sleeve outside（14）, sliding sleeve（14）Upper remote breather pipe（10）Inlet end one end set There is top plate（140）, sliding sleeve（14）It is arranged with shell outside（15）, shell（15）On by perpendicular to breather pipe（10）The direction of axis On be provided with rotating shaft（17）, rotating shaft（17）On be rotatably connected to handle（16）, rotating shaft（17）With top plate（140）The distance between it is small In handle（16）Radius, the air inlet pipe（10）Upper remote handle（16）End on be provided with fixed back-up ring（11）, air inlet Pipe（10）Outer slip cap is provided with slip back-up ring（12）, and slide back-up ring（12）Both sides be each provided with least one airtight cushion rubber （18）.

2. heater tank leakage detection apparatus according to claim 1, it is characterized in that, the outlet pipe of heater tank（20）On also set It is equipped with snap joint（1）, the snap joint（1）Hose coupling（13) sealed by plug.

3. heater tank leakage detection apparatus according to claim 2, it is characterized in that, the rotating shaft（17）One end be provided with gear Block（174）, the other end be provided with draw ring（173）, draw ring（173）With shell（15）Outer wall between be provided with restriction handle（16） The locking device of rotation.

4. heater tank leakage detection apparatus according to claim 3, it is characterized in that, the locking device includes：

Rotating shaft limiting plate（150）, have two and from shell（15）Outer wall vertical in breather pipe（10）Axis direction extends, two turns Axle limiting plate（150）Between formed close up；

Limited mouth（161）, it is arranged at handle（16）Rotation junction；

Rotary spacing block（170）, the embedded limited mouth（161）So that rotating shaft（17）With handle（16）Linkage；

Screens section（171）, it is arranged at rotating shaft（17）On extend shell（15）One end, geomery and two rotating shaft limiting plates （150）Between formed closing in adaptation；

Linkage section（172）, from screens section（171）To draw ring（173）Direction extends, and its size is less than two rotating shaft limiting plates（150） Between the closing in that is formed.

5. heater tank leakage detection apparatus according to claim 1, it is characterized in that, the flexible pipe includes being connected to inflator pump （7）On the second flexible pipe（5）And it is connected to water inlet pipe（21）On snap joint（1）The first flexible pipe（4）, described first is soft Pipe（4）Upper setting is connected to Pressure monitoring instrument（6）Branch pipe, first flexible pipe（4）With the second flexible pipe（5）Between be provided with oil Separator（3）.

6. heater tank leakage detection apparatus according to claim 5, it is characterized in that, the oil water separator（3）Air inlet With the extension tube attached for connecting flexible pipe is provided with gas outlet（30）, each extension tube attached（30）By fast between flexible pipe Quick coupling（1）Connection.