CN214843856U - Cylinder body frock of leaking hunting - Google Patents

Abstract

The utility model relates to a cylinder body frock of leaking hunting, it includes the frock bottom plate, threaded connection has a plurality of stoppers with the fixed block matched with of the cylinder body that awaits measuring on the frock bottom plate, be connected with two rotatory hydro-cylinders on the frock bottom plate, two all be connected with the pressure arm on the rotatory hydro-cylinder, two all be connected with the top clamp plate on the pressure arm, two all be connected with two and the corresponding sealed end cap of cylinder body top through-hole that awaits measuring under the top clamp plate. This application has the effect of being convenient for carry out the shutoff to a plurality of through-holes of the cylinder body that awaits measuring when the fixed cylinder body that awaits measuring of centre gripping.

Description

Cylinder body frock of leaking hunting

Technical Field

The application relates to the field of tool fixtures, in particular to a cylinder body leakage detection tool.

Background

At present, the automobile cylinder body needs to be sealed after production, potential safety hazards are eliminated, and safety accidents caused by liquid leakage in the cylinder body are prevented.

Referring to fig. 1, there are four cavities in the cylinder body 1 that awaits measuring, and every cavity and the cylinder body 1 surface that awaits measuring all form two through-holes, are equipped with four fixed blocks 12 on the cylinder body 1 that awaits measuring, and when four fixed blocks 12 were down, there were four through-holes on the cylinder body 1 top surface that awaits measuring, and three through-hole has been seted up to cylinder body 1 side that awaits measuring, and wherein two through-holes are located same side, and a through-hole has been seted up to cylinder body 1 bottom surface that awaits measuring. When the air tightness of the automobile cylinder body is detected, a dry type leakage detection method which is relatively efficient and not influenced by human factors is generally adopted, the cylinder body 1 to be detected is clamped and fixed by a clamping device, then the rest through holes of each cavity on the cylinder body 1 to be detected are blocked, only one through hole is reserved, a certain amount of compressed air is filled into one through hole reserved in each cavity, and whether the air tightness of the cylinder body to be detected is qualified is judged by detecting the air leakage amount through a leakage detection instrument.

In view of the above-mentioned related art, the inventor thinks that there is the defect that when clamping and fixing the cylinder body 1 to be measured and simultaneously plugging a plurality of through holes of the cylinder body 1 to be measured, the stability of the cylinder body 1 to be measured and the tightness of plugging the plurality of through holes are not easily realized at the same time, and the operation is complicated.

SUMMERY OF THE UTILITY MODEL

In order to facilitate carrying out the shutoff to a plurality of through-holes of the cylinder body that awaits measuring when the fixed cylinder body that awaits measuring of centre gripping, this application provides a cylinder body frock of leaking hunting.

The application provides a cylinder body frock of leaking hunting adopts following technical scheme:

a cylinder body leakage detection tool comprises a tool bottom plate, wherein a plurality of limiting blocks for abutting and matching with fixing blocks of a cylinder body to be detected are connected to the tool bottom plate, a plurality of pressing pieces are fixed to the tool bottom plate, and each pressing piece is connected with a top pressing plate for pressing the fixing block of the cylinder body to be detected and the limiting block; the pressure measuring device is characterized by further comprising a sealing plug for plugging the through holes in the cylinder body to be measured, vent holes for introducing pressure measuring gas are formed in the sealing plug connected to one of the through holes in each cavity, and the top pressing plate is connected with the sealing plugs in the four through holes in the top of the cylinder body to be measured.

By adopting the technical scheme, a plurality of limit blocks are connected on the tool bottom plate and are in interference fit with the fixed blocks of the cylinder body to be tested, the pressing piece is connected on the tool bottom plate, the top pressing block is connected on the pressing piece to press the cylinder body to be tested and the limit blocks on the tool bottom plate, so that the cylinder body to be tested is convenient to install and fix on the tool bottom plate, the sealing plug is arranged in the through hole of the cylinder body to be tested, the vent hole is arranged in one of the through holes of each cavity of the cylinder body to be tested, gas is convenient to be introduced into the vent hole while other through holes of each cavity are sealed, the sealing performance of each cavity is detected through the change of the ventilation rate, the sealing performance of the cylinder body to be tested is convenient to determine, the sealing plug in the through hole at the top of the cylinder body to be tested is convenient to plug the through hole at the top of the cylinder body to be tested while the cylinder body to be tested is pressed with the tool bottom plate by the pressing piece, and the tightness of the plugging of the through hole at the top of the cylinder body to be tested is enhanced.

Optionally, the vent holes are formed in positions of the top pressing plate corresponding to the four through holes in the top of the cylinder body to be tested.

Through adopting above-mentioned technical scheme, set up the air vent in the top clamp plate with the corresponding position of four through-holes of the cylinder body top surface that awaits measuring, made things convenient for respectively to let in the air in four cavitys, made things convenient for the detection of the leakproofness of the cylinder body that awaits measuring.

Optionally, a pressing arm is connected between the pressing piece and the top pressing plate.

Through adopting above-mentioned technical scheme, connect the compressing arm on compressing tightly the piece to compressing tightly the arm and linking to each other with the top clamp plate, compressing tightly the piece and driving compressing arm and top clamp plate and reciprocate, made things convenient for the top clamp plate to the jam of the cylinder body top surface through-hole that awaits measuring sealed, made things convenient for the detection of the leakproofness of the cylinder body that awaits measuring.

Optionally, the pressing piece comprises two rotary oil cylinders.

By adopting the technical scheme, the pressing piece is set as the rotary oil cylinder, the rotary oil cylinder drives the pressing arm to rotate around the piston rod of the rotary oil cylinder while pressing down, so that the pressing arm drives the top pressing plate to rotate to the position above the through hole in the top of the cylinder body to be detected and seals the through hole, and further convenience is brought to the blockage and sealing of the through hole in the top of the cylinder body to be detected; the rotary oil cylinder drives the pressing arm to rotate around a piston rod of the rotary oil cylinder when rising, so that the pressing arm is far away from the cylinder body to be tested, and the cylinder body to be tested is convenient to mount and dismount.

Optionally, a connecting block is connected to a position, corresponding to the through hole in the bottom surface of the cylinder body to be tested, on the tool bottom plate, and the connecting block is fixedly connected with the sealing plug in the through hole in the bottom surface of the cylinder body to be tested.

By adopting the technical scheme, the connecting block is arranged at the position, corresponding to the through hole in the bottom surface of the cylinder body to be detected, on the tool bottom plate, and the connecting block is fixedly connected with the sealing plug in the through hole in the bottom surface of the cylinder body to be detected, so that the sealing performance of the sealing plug on the through hole in the bottom surface of the cylinder body to be detected is enhanced while the rotary oil cylinder compresses the top pressing plate and the tool bottom plate.

Optionally, two sealing plugs respectively inserted into two adjacent through holes on the side surface of the cylinder body to be tested are connected with a sealing plate together, and the sealing plate is abutted with the cylinder body to be tested through the fixing hole and the bolt.

Through adopting above-mentioned technical scheme, connect the closing plate jointly on the sealed end cap in two adjacent through-holes of cylinder body side that awaits measuring, set up a plurality of and the corresponding fixed orifices of hole on the cylinder body that awaits measuring on the closing plate, made things convenient for being connected of closing plate and the cylinder body that awaits measuring, made things convenient for the jam and the sealing of two through-holes of cylinder body side that awaits measuring, strengthened the sealed end cap to the sealed of two through-holes of cylinder body side that awaits measuring.

Optionally, an oil path block is connected to the tool bottom plate, a first inner oil path is formed in the tool bottom plate, a first feed port, a first discharge port and a second discharge port are formed between the first inner oil path and the top surface of the tool bottom plate, the first feed port is communicated with the oil path block, and the first discharge port and the second discharge port are respectively communicated with the two rotary oil cylinders.

Through adopting above-mentioned technical scheme, set up first interior oil circuit in that the frock bottom plate is inside, set up first feed inlet between first interior oil circuit and frock bottom plate top surface, set up first discharge gate and second discharge gate respectively between first interior oil circuit and two rotatory hydro-cylinders, made things convenient for the rotatory hydro-cylinder to fill and take out fluid, made things convenient for rotatory hydro-cylinder to drive and compress tightly the arm and the motion of top clamp plate, through connect the oil circuit piece on the frock bottom plate to communicate with each other first feed inlet and oil circuit piece, made things convenient for filling into and taking out of fluid in the first interior oil circuit.

Optionally, a second inner oil path is further formed in the tool bottom plate, a second feed port, a third discharge port and a fourth discharge port are formed between the second inner oil path and the top surface of the tool bottom plate, the second feed port is communicated with the oil path block, and the third discharge port and the fourth discharge port are respectively communicated with the two rotary oil cylinders.

By adopting the technical scheme, the second inner oil way is formed in the tool bottom plate, the second feed port of the second inner oil way is communicated with the oil way block, the third discharge port and the fourth discharge port of the second inner oil way are respectively communicated with the two rotary oil cylinders, so that oil in the tool bottom plate and the rotary oil cylinders flows out through the second inner oil way, the step of replacing the oil through pipe of the first inner oil way to other oil cylinders and then pumping the oil out to prevent the oil in the oil cylinders communicated with the first inner oil way from being polluted is omitted, the used oil in the tool bottom plate and the rotary oil cylinders can directly enter the other oil cylinders through the second feed port of the second inner oil way, and the oil can be conveniently pumped into and out from the rotary oil cylinders.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the tool bottom plate is connected with a plurality of limiting blocks, the limiting blocks are in abutting fit with the fixing blocks of the cylinder body to be tested, the tool bottom plate is connected with the pressing piece, the top pressing block is connected with the pressing piece, the cylinder body to be tested is pressed against the limiting blocks on the tool bottom plate, the cylinder body to be tested is convenient to install and fix on the tool bottom plate, the through hole of the cylinder body to be tested is provided with the sealing plug, the sealing plug arranged in one through hole of each cavity of the cylinder body to be tested is provided with the air vent, the air vent is convenient to be introduced into the air vent while other through holes of each cavity are sealed, the sealing performance of each cavity is detected through the change of the ventilation rate, the measurement of the sealing performance of the cylinder body to be tested is convenient, the sealing plug in the through hole at the top of the cylinder body to be tested is connected with the top pressing plate through the sealing plug in the through hole at the top of the cylinder body to be tested and the tool bottom plate by the pressing piece, the tightness of plugging the through hole at the top of the cylinder body to be tested is enhanced;

2. the pressing arm is connected between the piston rod of the rotary oil cylinder and the top pressing plate, so that the clamping and fixing of the cylinder body to be tested are facilitated, the top pressing plate connected to the pressing arm is installed and replaced, the connecting block corresponding to the through hole in the bottom of the cylinder body to be tested is connected to the top surface of the tool bottom plate, and the connecting block is connected with the sealing plug in the through hole in the bottom of the cylinder body to be tested, so that the through hole in the bottom of the cylinder body to be tested is conveniently plugged while the cylinder body to be tested is clamped and fixed, and the sealing performance of the through hole in the bottom of the cylinder body to be tested is enhanced;

3. through set up two interior oil circuits inside the frock bottom plate, through connect the oil circuit piece on the frock bottom plate to lead to interior oil circuit to rotatory hydro-cylinder, made things convenient for in the rotatory hydro-cylinder to fill and take fluid out, made things convenient for the lift of the piston rod of rotatory hydro-cylinder promptly, made things convenient for compressing tightly fixed and taking out of the cylinder body that awaits measuring.

Drawings

Fig. 1 is a schematic structural diagram of a cylinder to be tested.

Fig. 2 is a schematic structural diagram of a cylinder body leak detection tool in an embodiment of the present application.

Fig. 3 is a schematic diagram of a cylinder to be tested and a sealing structure of the cylinder leak detection tool according to the embodiment of the application.

Fig. 4 is an internal schematic view of a tool bottom plate of the cylinder body leakage detection tool according to the embodiment of the application.

Fig. 5 is a structural schematic diagram of a back angle of a cylinder body leak detection tool according to an embodiment of the present application.

Description of reference numerals: 1. a cylinder body to be tested; 111. a first through hole; 112. a second through hole; 113. a third through hole; 114. a fourth via hole; 115. a fifth through hole; 116. a sixth through hole; 117. a seventh via hole; 118. an eighth through hole; 12. a fixed block; 2. a tooling bottom plate; 21. a first internal oil passage; 211. a first feed port; 212. a first discharge port; 213. a second discharge port; 22. a second internal oil passage; 221. a second feed port; 222. a third discharge port; 223. a fourth discharge port; 23. a sealing block; 231. connecting blocks; 3. a limiting block; 4. a sealing plate; 41. a fixing hole; 5. a top platen; 51. a vent hole; 6. sealing the plug; 7. rotating the oil cylinder; 71. a pressing arm; 72. a mounting seat; 8. an oil way block.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

Referring to fig. 1, four cavities are formed in a cylinder body 1 to be tested, two through holes are formed between each cavity and the surface of the cylinder body 1 to be tested, four fixing blocks 12 are arranged on the cylinder body 1 to be tested, when the four fixing blocks 12 face downward, four through holes are formed in the top surface of the cylinder body 1 to be tested, namely a first through hole 111, a second through hole 112, a third through hole 113 and a fourth through hole 114, three through holes are formed in the side surface of the cylinder body 1 to be tested, namely a fifth through hole 115, a sixth through hole 116 and a seventh through hole 117, the fifth through hole 115 and the sixth through hole 116 are located on the same side surface, and an eighth through hole 118 is formed in the bottom surface of the cylinder body 1 to be tested. The first through hole 111 and the fifth through hole 115 are communicated with each other in the same cavity, the second through hole 112 and the eighth through hole 118 are communicated with each other in the same cavity, the third through hole 113 and the sixth through hole 116 are communicated with each other in the same cavity, and the fourth through hole 114 and the seventh through hole 117 are communicated with each other in the same cavity.

The embodiment of the application discloses cylinder body frock of leaking hunting. Referring to fig. 2 and 3, a cylinder body frock of leaking hunting, including frock bottom plate 2, be connected with the stopper 3 that a plurality of supplies the fixed block 12 of the cylinder body 1 that awaits measuring contradict on the frock bottom plate 2, have connecting block 231 with the corresponding position threaded connection of eighth through-hole 118 on the frock bottom plate 2, connecting block 231 and the 6 integrated into one piece of sealed end cap in the eighth through-hole 118 combine to be sealed piece 23, plug up eighth through-hole 118.

Referring to fig. 3, the cylinder body leakage detection tool further includes a sealing plate 4 commonly covering the fifth through hole 115 and the sixth through hole 116, and a sealing plug 6 is integrally formed at a position of the sealing plate 4 corresponding to the fifth through hole 115 and the sixth through hole 116, so as to plug the fifth through hole 115 and the sixth through hole 116. And a sealing plug 6 is connected in the seventh through hole 117 on the side surface of the cylinder body 1 to be tested in a threaded manner, so that the seventh through hole 117 is blocked. Still seted up a plurality ofly on the closing plate 4 and the cylinder body 1 that awaits measuring on the hole corresponding fixed orifices 41 of the corresponding side of fifth through-hole 115 and sixth through-hole 116, when two sealed end caps 6 on the closing plate 4 were arranged in fifth through-hole 115 and sixth through-hole 116, wear to locate a plurality of fixed orifices 41 on the closing plate 4 and the cylinder body 1 that awaits measuring in a plurality of holes that correspond with a plurality of bolts, closing plate 4 can be connected with the cylinder body 1 gomphosis that awaits measuring, block up fifth through-hole 115 and sixth through-hole 116.

Referring to fig. 3, the top pressing plate 5 is disposed at the first through hole 111 and the second through hole 112, and the third through hole 113 and the fourth through hole 114 on the top surface of the cylinder body 1 to be tested, the sealing plugs 6 are integrally formed at positions of the top pressing plate 5 corresponding to the first through hole 111, the second through hole 112, the third through hole 113 and the fourth through hole 114, and the top press plate 5 is provided with vent holes 51 at positions corresponding to the first through hole 111, the second through hole 112, the third through hole 113 and the fourth through hole 114, when the fifth through hole 115, the sixth through hole 116, the seventh through hole 117 and the eighth through hole 118 are all blocked, the four air holes 51 are respectively used for introducing air into the first through hole 111, the second through hole 112, the third through hole 113 and the fourth through hole 114, and through the change of air pressure during the gas introduction, the tightness of the cavity connected with the first through hole 111, the second through hole 112, the third through hole 113 and the fourth through hole 114 can be determined.

Referring to fig. 2 and 3, the tooling bottom plate 2 is connected with two pressing members, which in the embodiment of the present application may be rotary cylinders 7, a mounting seat 72 is disposed between each rotary cylinder 7 and the tooling bottom plate 2, a pressing arm 71 is connected to a piston rod of each rotary cylinder 7, the two pressing arms 71 are respectively connected with the two top press plates 5, when the rotary cylinder 7 drives the pressing arm 71 to move downward, the pressing arm 71 is driven by the piston rod of the rotary cylinder 7 to rotate around the piston rod of the rotary cylinder 7 toward the interior of the tooling bottom plate 2, the pressing arm 71 drives the top press plate 5 to rotate inward and downward, so as to block the first through hole 111, the second through hole 112, the third through hole 113 and the fourth through hole 114, and at the same time, due to the downward pressing of the top press plate 5, the contact between the eighth through hole 118 on the bottom surface of the cylinder body 1 to be tested and the sealing block 23 and the fixing block 12 of the cylinder body 1 to be tested and the limiting block 3 connected with the screw on the tooling bottom plate 2 is tighter, the stability of being connected of cylinder body 1 that awaits measuring and frock bottom plate 2 has been strengthened, has strengthened the leakproofness between eighth through-hole 118 and the sealing block 23.

Referring to fig. 2 and 3, when the rotary cylinder 7 drives the pressing arm 71 to move upward, the pressing arm 71 is driven by the piston rod of the rotary cylinder 7 to rotate outward around the piston rod of the rotary cylinder 7, the pressing arm 71 drives the top pressing plate 5 to move outward and upward, and no shielding object is arranged above the cylinder body 1 to be tested, so that the cylinder body 1 to be tested can be conveniently mounted and taken down on the tool bottom plate 2.

Referring to fig. 4 and 5, an oil path block 8 is connected above the tool base plate 2, a first inner bent oil path 21 and a second inner bent oil path 22 are formed in the tool base plate 2, a first feed port 211 is formed between the first inner oil path 21 and the oil path block 8, a second feed port 221 is formed between the second inner oil path 22 and the oil path block 8, a first discharge port 212 and a second discharge port 213 are respectively formed between the first inner oil path 21 and the two mounting seats 72, a third discharge port 222 and a fourth discharge port 223 are respectively formed between the second inner oil path 22 and the two mounting seats 72, that is, the first discharge port 212 and the third discharge port 222 lead to the same rotary cylinder 7, and the second discharge port 213 and the fourth discharge port 223 lead to the other rotary cylinder 7.

Referring to fig. 4 and 5, the second feed port 221 and the opening between the first inner oil path 21 and the side wall of the tooling bottom plate 2 are blocked, and oil is injected into the first feed port 211, and the oil enters the two rotary cylinders 7 through the first discharge port 212 and the second discharge port 213 of the first inner oil path 21, so that the pressing arm 71 on the rotary cylinder 7 moves upward, and the top pressing plate 5 connected to the pressing arm 71 is driven to move upward and rotate outward around the piston rod of the rotary cylinder 7, thereby facilitating the mounting of the cylinder body 1 to be tested on the tooling bottom plate 2 or the removal of the cylinder body 1 to be tested from the tooling bottom plate 2; plug up the opening between oil circuit 22 and the frock bottom plate 2 lateral wall in the second, open second feed inlet 221 again, fluid in two rotatory hydro-cylinders 7 flows to oil circuit piece 8 through third discharge gate 222 and fourth discharge gate 223 of oil circuit 22 in the second respectively promptly, and flow out through the second feed inlet 221 of oil circuit piece 8, because fluid flows out in rotatory hydro-cylinder 7, make the hold-down arm 71 of being connected on the rotatory hydro-cylinder 7 downstream, and drive the piston rod of rotatory hydro-cylinder 7 when top clamp plate 5 connected on the hold-down arm 71 downstream, can compress tightly the cylinder body 1 that awaits measuring with frock bottom plate 2, be fixed in on the frock bottom plate 2 with the cylinder body 1 that awaits measuring.

The implementation principle of the cylinder body leak hunting frock of the embodiment of this application is: the openings among the first inner oil way 21, the second inner oil way 22 and the side wall of the tool bottom plate 2 are blocked, the second feed port 221 on the oil way block 8 is blocked, oil is injected into the first feed port 211, the oil enters the two rotary oil cylinders 7 through the first discharge port 212 and the second discharge port 213 of the first inner oil way 21 respectively, the two pressing arms 71 connected to the two rotary oil cylinders 7 and the top pressing plates 5 connected to the two pressing arms 71 move upwards and rotate outwards around the piston rods of the rotary oil cylinders 7, and a space is reserved for installing the cylinder body 1 to be tested.

Connecting the sealing block 23 and the plurality of limit blocks 3 to the tool bottom plate 2 by screw threads, connecting the eighth through hole 118 of the cylinder body 1 to be tested with the sealing block 23 in an embedded manner, making the plurality of fixed blocks 12 of the cylinder body 1 to be tested contact with the plurality of limit blocks 3 connected with the tool bottom plate 2 by screw threads, opening the second feed inlet 221 on the oil path block 8, allowing oil in the two rotary cylinders 7 to flow out through the third discharge outlet 222 and the fourth discharge outlet 223 of the second inner oil path 22, allowing the two pressing arms 71 connected with the two rotary cylinders 7 and the top pressing plate 5 connected with the two pressing arms 71 to move downwards and rotate inwards around the piston rod of the rotary cylinders 7, making the sealing plug 6 connected below the top pressing plate 5 in embedded and matched with the first through hole 111, the second through hole 112, the third through hole 113 and the fourth through hole 114 on the top surface of the cylinder body 1 to be tested, and matching the first through hole 111, the second through hole 112, the third through hole 113 and the fourth through hole 114, The third through hole 113 and the fourth through hole 114 are blocked, and the top pressing plate 5 moves downwards to press the cylinder body 1 to be tested and the tooling bottom plate 2, so that the connection between the cylinder body 1 to be tested and the tooling bottom plate 2 is more stable.

The two sealing plugs 6 on the sealing plate 4 are arranged in the fifth through hole 115 and the sixth through hole 116, bolts are sequentially arranged in the fixing holes 41 on the sealing plate 4 and the holes on the cylinder body 1 to be tested in a penetrating manner, so that the sealing plate 4 is connected with the cylinder body 1 to be tested in a embedding manner, and the fifth through hole 115 and the sixth through hole 116 are blocked. The sealing plug 6 is screwed into the seventh through hole 117, so that the seventh through hole 117 can be plugged.

Air is respectively introduced into the four air holes 51 on the two top pressing plates 5, and the pressure change during the air introduction is measured by the air pressure detection device, so that the tightness of the four cavities of the cylinder body 1 to be detected can be judged.

The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a cylinder body frock of leaking hunting which characterized in that: the tool bottom plate (2) is connected with a plurality of limiting blocks (3) which are used for abutting and matching with the fixing blocks (12) of the cylinder body (1) to be detected, a plurality of pressing pieces are fixed on the tool bottom plate (2), and each pressing piece is connected with a top pressing plate (5) which is used for pressing the fixing block (12) of the cylinder body (1) to be detected and the limiting block (3); the pressure measuring device is characterized by further comprising a sealing plug (6) used for plugging the through hole in the cylinder body (1) to be measured, a vent hole (51) used for leading in pressure measuring gas is formed in the sealing plug (6) connected to one through hole in each cavity, and the top pressing plate (5) is connected with the sealing plugs (6) in the four through holes in the top of the cylinder body (1) to be measured.

2. The cylinder body leak hunting tool according to claim 1, characterized in that: the vent holes (51) are formed in the positions, corresponding to the four through holes in the top of the cylinder body (1) to be detected, of the top pressing plate (5).

3. The cylinder body leak hunting tool according to claim 1, characterized in that: a pressing arm (71) is connected between the pressing piece and the top pressing plate (5).

4. The cylinder body leak hunting tool according to claim 1, characterized in that: the pressing piece comprises two rotating oil cylinders (7), and the number of the rotating oil cylinders (7) is two.

5. The cylinder body leak hunting tool according to claim 1, characterized in that: the tool bottom plate (2) is connected with a connecting block (231) at a position corresponding to the through hole in the bottom surface of the cylinder body to be detected (1), and the connecting block (231) is fixedly connected with the sealing plug (6) in the through hole in the bottom surface of the cylinder body to be detected (1).

6. The cylinder body leak hunting tool according to claim 1, characterized in that: the sealing device is characterized in that two sealing plugs (6) are connected with sealing plates (4) jointly, the sealing plates (4) correspond to holes in the side face of the cylinder body to be tested (1), and the sealing plates (4) are connected with the cylinder body to be tested (1) in a butting mode through the fixing holes (41) and bolts.

7. The cylinder body leak hunting frock of claim 4, characterized in that: be connected with oil circuit piece (8) on frock bottom plate (2), set up first interior oil circuit (21) in frock bottom plate (2), first interior oil circuit (21) with the top surface of frock bottom plate (2) is separated and is equipped with first feed inlet (211), first discharge gate (212) and second discharge gate (213), first feed inlet (211) with oil circuit piece (8) communicate with each other, first discharge gate (212) and second discharge gate (213) access to two respectively rotatory hydro-cylinder (7).

8. The cylinder body leak hunting frock of claim 7, characterized in that: a second inner oil way (22) is further formed in the tool bottom plate (2), a second feeding hole (221), a third discharging hole (222) and a fourth discharging hole (223) are formed between the second inner oil way (22) and the top surface of the tool bottom plate (2), the second feeding hole (221) is communicated with the oil way block (8), and the third discharging hole (222) and the fourth discharging hole (223) are respectively communicated with the two rotary oil cylinders (7).

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