CN213985587U - Novel pressure leak detection mechanism - Google Patents

Abstract

The utility model discloses a novel pressure leak hunting mechanism aims at providing a novel pressure leak hunting mechanism that detects the precision higher, convenient operation. It is equipped with the support frame that is used for supporting the cylinder including detecting head, pressure switch, unsteady connecting piece and cylinder, cylinder below, the push rod lower extreme of cylinder wear to establish in the support frame and through unsteady connecting piece with it connects to detect the head, it is equipped with and waits to wait to detect the head bottom and waits the clamp plate of waiting to examine empty bucket bung hole contact, the clamp plate diameter is greater than the bung hole bore, pressure switch inlays to be established in the lateral wall that detects the head, and cylinder, unsteady connecting piece and detection head are from last to arranging in proper order down. Adopt the cover type in this design to detect the head, can cover whole bung hole comprehensively, reduce and miss the detection false retrieval rate, in time select the wastrel, guarantee product quality.

Description

Novel pressure leak detection mechanism

Technical Field

The utility model relates to a bucket spare detects technical field, concretely relates to novel pressure leak hunting mechanism.

Background

After the empty barrel is machined and formed, a pressure mechanism is needed to perform leakage detection on the empty barrel. Current pressure leak hunting mechanism adopts bayonet leak hunting head more, but this kind of leak hunting head can't cover the bung hole of waiting to examine empty bucket, so the detection rate receives the influence, especially runs into the bore and is less than 1 mm's hole, and traditional bayonet detection head often can miss the inspection, can't effectively select the wastrel in time, leads to the yields of product quality to reduce.

The invention provides an empty barrel leakage detecting device which is named as an empty barrel leakage detecting device in China patent publication No. CN2869829, No. 2, month 14 of 2007, and the application discloses an empty barrel leakage detecting device. The device is mainly used for detecting the leakage point of the damaged barrel. The method is characterized in that: the bracket is fixed with a cross beam, the middle part of the cross beam is in threaded connection with a compression bolt, the cross beams on the two sides of the compression bolt are provided with sliding columns which penetrate through the cross beam, the lower end of each sliding column is fixed with a sealing water injection nozzle, and the sliding columns above the cross beams are provided with springs. The empty barrel leakage detection device can detect the position of a barrel leakage, can be renovated in time to save cost, and brings convenience to consumers. The device has the defects of low detection precision and low automation level, and has no improved scheme for reducing the false detection rate of missed detection.

Disclosure of Invention

The utility model overcomes shortcoming among the prior art provides a detect the novel pressure leak hunting mechanism that the precision is higher, convenient operation.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model provides a novel pressure leak hunting mechanism, is equipped with the support frame that is used for supporting the cylinder including detecting head, pressure switch, unsteady connecting piece and cylinder, cylinder below, the push rod lower extreme of cylinder wear to establish in the support frame and through unsteady connecting piece with it connects to detect the head, it is equipped with and waits to wait to examine the clamp plate of empty bucket bung hole contact to detect first bottom, the clamp plate diameter is greater than the bung hole bore, pressure switch inlays to be established in the lateral wall that detects the head, and cylinder, unsteady connecting piece and detection head are arranged from last to arranging in proper order down.

The barrel to be detected is conveyed to a detection station near the leakage detection mechanism by a conveying belt, and the diameter of a pressing plate (the pressing plate is generally circular and is consistent with the shape of the barrel opening) of the detection head in the scheme is larger than the caliber of the barrel opening, so that the barrel opening can be covered by the pressing plate when the detection head detects, and no gap is formed between the detection head and the barrel opening. If the bung hole has a clearance with the detection head, the leak detection effect will be worsened. The floating connecting piece can move adaptively according to the position of the barrel opening of the barrel to be detected, so that the detection head can better cover the whole barrel opening, the phenomena of deflection, air leakage and the like caused by barrel deformation due to pressure change in the barrel in the detection process are avoided, and the detection stability is improved.

Preferably, the support frame comprises a top plate and a bottom plate which are arranged up and down, a plurality of stand columns are arranged between the top plate and the bottom plate, and the diameters of the stand columns are not smaller than the diameter of the push rod of the air cylinder. The support frame plays the effect of support cylinder, and the stand diameter designs into being more than or equal to cylinder push rod diameter, can guarantee that the push rod is vertical to be arranged. If the upright post is thinner than the caliber, the support frame is not stable enough due to weak strength.

Preferably, the upper end of the floating connecting piece is provided with a guide rod connected with a push rod of the cylinder, the center of the bottom plate is provided with a limiting hole allowing the guide rod to move up and down, and the outer side wall of the guide rod is attached to the inner wall of the limiting hole. The center of the bottom plate is provided with a limiting hole, the limiting hole is attached to the guide rod, the guide rod which moves up and down is limited by the limiting hole in the horizontal direction, and the horizontal displacement cannot occur to influence the work of the floating connecting piece.

Preferably, the upper end and the lower end of the upright post are respectively provided with a flange joint fixed on the top plate and the bottom plate. The flange joint can be fixed the stand more firmly on the top and the bottom plate of support frame, and the support frame working process can be more stable.

Preferably, the pressure switch is a high-precision digital pressure switch. A high-precision pressure switch is adopted, so that small holes with the caliber of 0.5mm-1mm can be detected and found; the digital pressure switch can be used for adjusting the pressure switch according to the numerical value more intuitively. In the actual detection process of the device, the detection rate of the holes with the diameter of 1mm reaches 100 percent, and the detection rate of the holes with the diameter of 0.6mm is 80 percent.

Preferably, the pressing plate is provided with a soft cushion made of rubber below, and the soft cushion is positioned between the pressing plate and the barrel opening of the barrel to be emptied. The clamp plate is because need cover whole bung hole, and the leakproofness between clamp plate and the bung hole will be direct relation to the precision of detecting first leak hunting, so the clamp plate below sets up the cushion of rubber material, like this, the cylinder promotes downwards, detects first earlier with the bung hole contact, then the cushion receives the extrusion and takes place slight deformation, and the cushion of clamp plate can wrap whole bung hole.

Preferably, the floating connecting piece and the detection head are detachably connected. The bucket type of different specifications has not equidimension bung hole, can both match with the equidimension bung hole in order to make the detection head, so set the detection head to can dismantle the connection, can choose for use the detection head that corresponds with the bung hole size, then install on the connecting piece that floats.

Compared with the prior art, the beneficial effects of the utility model are that: the detection head is provided with a pressing plate which can completely cover the whole barrel opening, so that covering type leakage detection can be realized, and the detection rate is ensured; the floating connecting piece can assist the detection head to be better attached to the barrel opening, and the influence on the leakage detection effect caused by deflection and air leakage caused by barrel deformation is avoided; by adopting a high-precision digital pressure switch, micropores with the aperture of 1mm or even 0.6mm can be effectively detected; the device has high automation degree, reduces the labor cost, reduces the missing detection and false detection rate, and ensures the product quality.

Drawings

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

FIG. 2 is a schematic view of the present invention used in conjunction with a frame;

FIG. 3 is a schematic view of the present invention used in conjunction with an empty bucket rejecting mechanism;

in the figure: the device comprises a detection head 1, a pressure switch 2, a floating connecting piece 3, a cylinder 4, a support frame 5, a top plate 51, a bottom plate 52, an upright column 53, a guide rod 6, a flange joint 7, a frame 8 and an empty barrel removing mechanism 9.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

as shown in fig. 1, a novel pressure leak detection mechanism, including detecting head 1, pressure switch 2, unsteady connecting piece 3 and cylinder 4, 4 below of cylinder are equipped with the support frame 5 that is used for supporting cylinder 4, the push rod lower extreme of cylinder 4 wear to establish in support frame 5 and through unsteady connecting piece 3 with it connects to detect head 1, it is equipped with and waits to wait to examine the clamp plate (not shown in the figure) of empty bucket bung hole contact to detect head 1 bottom, the clamp plate diameter is greater than the bung hole bore, pressure switch 2 inlays to be established in the lateral wall that detects the head, and what pressure switch 2 adopted is high accuracy digital pressure switch, and cylinder 4, unsteady connecting piece 3 and detection head 1 are arranged from last to down in proper order. The supporting frame 5 comprises a top plate 51, a bottom plate 52 and a plurality of upright posts 53 between the top plate 51 and the bottom plate 52, wherein the diameter of each upright post 53 is larger than that of a push rod of the cylinder 4. The upper end of the floating connecting piece 3 is provided with a guide rod 6 connected with a push rod of the cylinder 4, the center of the bottom plate 52 is provided with a limiting hole (not shown in the figure) allowing the guide rod 6 to move up and down, and the outer side wall of the guide rod 6 is attached to the inner wall of the limiting hole. The lubricating oil is coated on the guide rod 6, so that the friction between the guide rod 6 and the limiting hole can be reduced, the guide rod 6 is subjected to smaller resistance when doing axial motion, and the up-and-down motion of the detection head 1 is more controllable. And the upper end and the lower end of the upright column 53 are respectively provided with a flange joint 7 fixed on the top plate and the bottom plate. The clamp plate below is equipped with the cushion (not shown in the figure) of rubber material, and the cushion is in the clamp plate and wait to examine between the empty bucket bung hole. The floating connecting piece 3 is detachably connected with the detection head 1, and the detection head matched with the barrel opening is replaced before leakage detection is carried out on the barrel opening with different calibers.

Wait to examine empty bucket and send near the detection station department of leak hunting mechanism by the conveyer belt, as shown in fig. 2, fig. 3, a plurality of leak hunting mechanisms are fixed in frame 8 and are arranged into one row in proper order, and the leak hunting mechanism who arranges into one row can be arranged in one side that empty bucket rejected mechanism 9, and such overall arrangement improves the efficiency that leak hunting mechanism carries out the leak hunting to empty bucket, also can in time screen out the poor quality empty bucket after the leak hunting and reject mechanism 9 through empty bucket and see off. The diameter of the pressing plate of the detection head 1 is larger than the caliber of the barrel opening, so that the detection head 1 can cover the barrel opening through the pressing plate during detection, and no gap is reserved between the detection head 1 and the barrel opening. If the bung is spaced from the detection head 1, the leak detection effect is deteriorated. Wherein the floating connecting piece 3 can be according to waiting to examine empty bucket bung hole position and take place the adaptability motion, makes and detects head 1 and can cover whole bung hole better, avoids in the testing process, and the change of bucket internal pressure leads to phenomenons such as the bucket warp and bring crooked, leak gas, improves and detects stability. The guide rod 6 is limited by the limiting hole in the horizontal direction, and the work of the floating connecting piece cannot be influenced by the horizontal displacement.

In the actual detection process, a high-precision pressure switch is adopted, the detection rate of the holes with the diameter of 1mm reaches 100%, and the detection rate of the holes with the diameter of 0.6mm is 80%.

The cylinder 4 pushes downwards, the detection head 1 is firstly contacted with the barrel opening, then the cushion is slightly deformed by extrusion, and the cushion of the pressing plate can cover the whole barrel opening.

Claims (7)

1. The utility model provides a novel pressure leak hunting mechanism, its characterized in that, including detecting head, pressure switch, unsteady connecting piece and cylinder, the cylinder below is equipped with the support frame that is used for supporting the cylinder, the push rod lower extreme of cylinder wear to establish in the support frame and through unsteady connecting piece with it connects to detect the head, it is equipped with and waits to wait the clamp plate of empty bucket bung hole contact to detect the head bottom, the clamp plate diameter is greater than the bung hole bore, pressure switch inlays to be established in the lateral wall that detects the head, and cylinder, unsteady connecting piece and detection head are from last to arranging down in proper order.

2. The novel pressure leak detection mechanism according to claim 1, wherein the support frame comprises a top plate and a bottom plate which are arranged up and down, a plurality of columns are arranged between the top plate and the bottom plate, and the diameter of each column is not smaller than that of the push rod of the cylinder.

3. The novel pressure leak detection mechanism according to claim 2, wherein a guide rod connected with a push rod of the cylinder is arranged at the upper end of the floating connecting piece, a limiting hole allowing the guide rod to move up and down is arranged at the center of the bottom plate, and the outer side wall of the guide rod is attached to the inner wall of the limiting hole.

4. A novel pressure leak detection mechanism according to claim 2, wherein the upper and lower ends of the upright post are respectively provided with a flange joint fixed on the top plate and the bottom plate.

5. The novel pressure leak detection mechanism of claim 1, wherein the pressure switch is a high precision digital pressure switch.

6. The novel pressure leak detection mechanism according to claim 1, wherein a soft pad made of rubber is arranged below the pressing plate, and the soft pad is positioned between the pressing plate and a barrel opening of the barrel to be inspected.

7. The novel pressure leak detection mechanism of claim 1, wherein the floating connection piece and the detection head are detachably connected.

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