CN210347001U

CN210347001U - Air tightness detection device for arc-shaped core body

Info

Publication number: CN210347001U
Application number: CN201921418458.3U
Authority: CN
Inventors: 牛子英; 李德彬; 王莉飞
Original assignee: Henan Xinhang Aviation Equipment Technology Co ltd
Current assignee: Henan Xinhang Aviation Equipment Technology Co ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-04-17
Anticipated expiration: 2029-08-29

Abstract

The utility model relates to the technical field of core body airtightness detection, in particular to an airtightness detection device for an arc-shaped core body, the arc-shaped core body cannot be end-sealed due to a parting strip on the end surface, and the design of an airtight tool increases the difficulty due to the appearance of the arc-shaped core body, the airtightness detection device for the arc-shaped core body comprises clamp blocking parts respectively positioned at two end parts of the core body, each blocking part comprises an end plate, a baffle plate, a sealing ring, a lantern ring and a pressing plate which are sequentially sleeved together, a cavity is arranged at the central position of the baffle plate, the end part of the core body is inserted into the cavity of the baffle plate, the sealing ring is positioned between the baffle plate and the lantern ring, the end plate, the baffle plate, the lantern ring and the pressing plate are fixedly connected through a screw and a nut and extrude the sealing ring to, realize that core both ends are sealed, carry out the gas tightness and detect, have fine development prospect in core gas tightness detection technical field.

Description

Air tightness detection device for arc-shaped core body

Technical Field

The utility model relates to a core gas tightness detects technical field, especially relates to a gas tightness detection device for circular-arc core.

Background

In the manufacturing and processing of the heat exchanger, the core assembly is a relatively critical part, and after the product is welded, the airtightness test on the product is a key for ensuring the welding quality of the core.

The end face of the arc-shaped core body cannot be sealed due to the spacer strips on the end face, and the arc-shaped core body is of a large arc structure in appearance, so that the difficulty is increased in the design of an airtight tool, the welded core body cannot be subjected to airtight inspection, and the problem needs to be solved by the airtight inspection tool special for the arc-shaped core body.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides an air tightness detection device for circular-arc core solves the problem that does not have the air tightness detection device who is exclusively used in circular-arc core.

The technical scheme is that the air tightness detection device for the arc-shaped core body comprises clamp blocking pieces which are respectively positioned at two end parts of the core body, each blocking piece comprises a first blocking piece positioned at one end of the core body and used for air inlet and a second blocking piece positioned at the other end of the core body and used for complete sealing, each blocking piece comprises an end plate, a baffle, a sealing ring, a sleeve ring and a pressing plate which are sequentially sleeved together, the pressing plate and the sleeve ring are sequentially sleeved at the end part of the core body from inside to outside, a cavity is arranged at the central position of the baffle, the diameter of the cavity is larger than the outer diameter of the sleeve ring, the sealing ring is positioned in the cavity of the baffle, the end part of the core body is connected with the sleeve ring with a smaller outer diameter and inserted into the cavity of the baffle, the pressing plate with a larger outer diameter is positioned, the end plate, the baffle, the lantern ring and the pressure plate are fixedly connected through a screw and a nut and extrude the sealing ring to deform, a through hole is formed in the end plate on the first blocking piece, and a nozzle used for air inlet is fixed at the through hole.

Furthermore, the first blocking piece and the second blocking piece are fixedly connected through bolts.

Furthermore, the end plate, the baffle plate, the lantern ring and the pressing plate are all provided with screw holes for screws to pass through, the screw holes correspond to each other in sequence, the screws are used for connecting the end plate, the baffle plate, the lantern ring and the pressing plate in sequence, and the pressing is realized under the matching of nuts.

Furthermore, the number of the bolts is between 2 and 6, and each end plate is provided with a screw hole for the bolt to pass through.

Furthermore, the nozzle and the end plate are fixed by welding.

When the air-tight baffle is used, firstly, the end plate and the baffle are connected into a whole by using screws, then the sealing ring is sleeved in the cavity of the baffle, the middle parts of the sleeve ring and the pressing plate are provided with through grooves for the core to pass through, then the pressing plate is sleeved at one end of the core, the sleeve ring is sleeved outside the pressing plate on the core after the pressing plate is sleeved, then the end part of the core sleeved with the sleeve ring and the pressing plate is inserted into the baffle with the sealing ring, finally, the sleeve ring and the pressing plate are pressed towards the direction close to the baffle under the matching of nuts by screwing the screws, the sealing ring positioned at the middle part is compressed and deformed, the other end of the core is subjected to the same operation, finally, the bolts penetrate through the end plates on the clamp blocking parts at the two ends to.

The technical effect of the utility model is that, the device imitates the end plate appearance, set up the cavity that can supply core tip male according to the radian of core tip on anchor clamps keep off the piece, it is sealed with core both ends opening, and compress tightly each spare part that the piece was kept off to constitution anchor clamps through the screw of screwing, surround in the middle of forcing and warp the purpose that reaches the packing space at the sealing washer of core opening part, first fender piece and second keep off the piece and pass through bolted connection formation with the whole gas tightness detection device of core centre gripping, finally realize sealedly, then admit air through the mouthpiece, detect the core gas tightness.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

1. The clamp comprises a bolt, a pressure plate 2, a sealing ring 3, a baffle 4, an end plate 5, a bolt 6, a nut 7, a nozzle 8, a collar 9, a core 10, a clamp stopper 100, a first stopper 101, a second stopper 102.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The first embodiment is as follows: the air tightness detection device for the arc-shaped core body is shown in figure 1 and comprises clamp blocking pieces 100 which are respectively positioned at two end parts of a core body 10, each blocking piece comprises a first blocking piece 101 which is positioned at one end of the core body and used for air inlet and a second blocking piece 102 which is positioned at the other end of the core body and used for complete sealing, each blocking piece 100 comprises an end plate 5, a baffle plate 4, a sealing ring 3, a lantern ring 9 and a pressing plate 2 which are sequentially sleeved together, the pressing plate 2 and the lantern ring 9 are sequentially sleeved at the end part of the core body 10 from inside to outside, a cavity is arranged at the central position of the baffle plate 4, the diameter of the cavity is larger than the outer diameter of the lantern ring 9, the end part of the core body 10 is connected with the lantern ring with a smaller outer diameter and is inserted into the cavity of the baffle plate, the sealing ring 3 is sleeved in, the lantern ring directly extrudes the sealing ring towards the end plate direction, the end plate 5, the baffle plate 4, the lantern ring 9 and the pressure plate 2 are fixedly connected through the screw 1 and the nut 7 and extrude the sealing ring 3 to deform, a through hole is formed in the end plate 5 on the first stopper 101, and a nozzle 8 for air inlet is fixed in the through hole.

In an embodiment, the first stopper 101 and the second stopper 102 are fixedly connected by bolts 6, the end plate 5, the baffle plate 4, the collar 9 and the pressing plate 2 are all provided with screw holes for screws 1 to pass through, each screw hole corresponds to each other in sequence, the screws 1 sequentially connect the end plate 5, the baffle plate 4, the collar 9 and the pressing plate 2 and realize compression under the cooperation of nuts 7, the number of the bolts 6 is 2-6, each end plate is provided with a screw hole for the bolt to pass through, and the nozzle 8 and the end plate 5 are fixed in a welding manner.

When the air-tight baffle is used, firstly, the end plate 5 and the baffle 4 are connected into a whole by using screws, then the sealing ring 3 is sleeved in a cavity of the baffle 4, through grooves for the core to pass through are formed in the middle parts of the sleeve ring 9 and the pressing plate 2, then the pressing plate 2 is sleeved at one end of the core, the sleeve ring 9 is sleeved outside the pressing plate 2 on the core after being sleeved in the pressing plate 2, then the end part of the core sleeved with the sleeve ring 9 and the pressing plate 2 is inserted into the baffle 4 with the sealing ring, finally, the sleeve ring 9 and the pressing plate 2 are pressed towards the direction close to the baffle 4 under the matching of nuts by screwing the screws, the sealing ring 3 in the middle part is compressed and deformed, the same operation is carried out on the other end of the core, finally, the bolts pass through the end plates 5 on the clamp stoppers 100 at two ends to connect the first stopper 101.

The present invention has been described in detail with reference to the specific embodiments and examples, but these should not be construed as limitations of the present invention. Numerous variations and modifications can be made by those skilled in the art without departing from the principles of the invention, which should also be considered as within the scope of the invention.

Claims

1. A gas tightness detection device for circular-arc core, characterized in that, detection device keeps off piece (100) including the anchor clamps that are located core (10) both ends respectively, keep off piece including being located core one end and being used for the first fender piece (101) of admitting air and being located the core other end and being used for totally enclosed second fender piece (102), each fender piece (100) is including end plate (5), baffle (4), sealing washer (3), lantern ring (9) and clamp plate (2) that cup joint together in proper order, clamp plate (2) and lantern ring (9) are overlapped in proper order at core (10) tip from inside to outside, the central point of baffle (4) puts and is provided with the cavity, core (10) tip is inserted in the baffle cavity, sealing washer (3) are located between baffle and lantern ring (9), through screw (1) and nut (7) fixed connection and extrusion sealing washer (3) deformation between end plate (5), baffle (4), lantern ring (9) and clamp plate (2) And a through hole is formed in the end plate (5) on the first stopper (101), and a nozzle (8) for air inlet is fixed at the through hole.

2. The airtightness detection apparatus for the arc-shaped core according to claim 1, wherein the first stopper (101) and the second stopper (102) are fixedly connected by a bolt (6).

3. The airtightness detection device for the arc-shaped core body according to claim 2, wherein the end plate (5), the baffle plate (4), the collar (9) and the pressure plate (2) are provided with screw holes for the screws (1) to pass through, and each screw hole corresponds to the screw hole in sequence for the screws (1) to sequentially connect the end plate (5), the baffle plate (4), the collar (9) and the pressure plate (2) and tightly press the end plate, the baffle plate (4), the collar (9) and the pressure plate (2) in cooperation with the nut (7).

4. The airtightness detection apparatus for a circular-arc-shaped core according to claim 2, wherein the number of bolts (6) is between 2 and 6.

5. The airtightness detection apparatus for a circular-arc-shaped core according to claim 1, wherein the nozzle (8) is fixed to the end plate (5) by welding.