CN110987303A - Fuel tank air tightness detection tool and sealing plug pressing tool - Google Patents
Fuel tank air tightness detection tool and sealing plug pressing tool Download PDFInfo
- Publication number
- CN110987303A CN110987303A CN201911260256.5A CN201911260256A CN110987303A CN 110987303 A CN110987303 A CN 110987303A CN 201911260256 A CN201911260256 A CN 201911260256A CN 110987303 A CN110987303 A CN 110987303A
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- fuel tank
- sealing plug
- plate
- hole
- screw rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention relates to the technical field of fuel tanks, in particular to a compaction tool and an air tightness detection tool for an air tightness detection sealing plug of a fuel tank. The sealing plug pressing tool is used for pressing the sealing plug, so that the possibility of untight sealing of the sealing plug is reduced, the sealing effect of the sealing plug is ensured, the sealing plug pressing tool is particularly suitable for the condition that the opening of the fuel tank is an inclined plane, the structure is simple, the use is convenient, and the manufacturing cost and the running cost are both low; because the sealing effect of the sealing plug is ensured, the fuel tank air tightness detection is more convenient to carry out, and the accuracy of the detection result is improved.
Description
Technical Field
The invention relates to the technical field of fuel tanks, in particular to a pressing tool and an air tightness detection tool for an air tightness detection sealing plug of a fuel tank.
Background
Before the fuel tank is used, the air tightness detection is needed, and the use safety of the fuel tank is ensured. The fuel tank air tightness detection is realized by a fuel tank air tightness detection tool, the existing fuel tank air tightness detection tool comprises a clamping workpiece, a water testing tank, a compressed air inlet assembly, a power cylinder and a sealing plug, the sealing plug is used for sealing the opening part of the fuel tank, the opening part of the fuel tank refers to an oil pump opening, an air inlet valve opening, a rollover valve opening and the like, the clamping workpiece comprises a clamping upper part and a clamping lower part, the clamping upper part can move up and down under the action of the power cylinder, in order to reduce the possibility of deformation of the fuel tank during detection, the inner shape of the clamping workpiece is the same as that of the fuel tank, namely the shape of the inner surface of the clamping upper part is the same as that of the lower surface of the fuel tank, the shape of the inner surface of the clamping lower part is the same as that of the upper surface of the fuel tank, and the position, corresponding to the opening part of the fuel tank, of the clamping upper part is provided with a mounting through hole for mounting a sealing plug. The procedure of using the detection tool to detect the air tightness of the fuel tank is as follows: fuel tanks are placed in the lower clamping part, the opening part of one fuel tank is connected with a compressed air inlet component, and the opening parts of the other fuel tanks are respectively placed with a sealing plug for sealing; and then controlling the power cylinder to enable the clamping upper part to move downwards to clamp the fuel tank together with the clamping lower part, finally putting the clamped fuel tank into the water test tank integrally, and simultaneously controlling the compressed air introducing assembly to introduce compressed air with measured pressure into the fuel tank, thereby detecting the air tightness of the fuel tank. When the existing detection tool is used for detection, the sealing plug is directly placed at the opening of the fuel tank to seal the opening, when the pressure of compressed air used for detection is high, the situation of poor sealing is easy to occur, particularly when the opening is an inclined plane, the sealing effect of the sealing plug is influenced, and further the detection of the air tightness of the fuel tank is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a compressing tool which is simple in structure, convenient to use and capable of ensuring the sealing effect of a sealing plug.
The pressing tool for the fuel tank air tightness detection sealing plug comprises a sleeve with an opening at the lower part, a screw rod and a joint pressing plate, wherein a first connecting fixing plate is arranged on the circumferential direction of the sleeve, a first connecting threaded hole is formed in the top of the sleeve, the upper end of the screw rod penetrates through the first connecting threaded hole in a matching mode, and the lower end of the screw rod is hinged with the joint pressing plate.
Further, still include the handle, the handle is connected and is set up the upper end at the screw rod.
Furthermore, a first connecting through hole is formed in the first connecting fixing plate.
The pressure assembly comprises a top plate, a bottom plate, an elastic piece and a connecting screw, a second connecting threaded hole is formed in the top of the sleeve, a second connecting through hole is formed in the top plate, and a third connecting threaded hole is formed in the bottom plate;
the top plate, the elastic piece and the bottom plate are sequentially arranged from top to bottom, the top plate is sleeved on the screw rod through the second connecting through hole, and the top plate can move up and down along the screw rod;
the bottom plate passes through the matching suit of third connecting thread hole on the screw rod, and the elastic component suit is on the screw rod, and the upper end of elastic component is connected with the roof, and the lower extreme of elastic component is connected with the bottom plate, and connecting screw matches and passes the setting of second connecting thread hole, and connecting screw can make the roof move down.
Further, still including adjusting fastening nut, adjust fastening nut suit on the screw rod, and the bottom plate pastes and leans on the setting to adjust fastening nut.
Furthermore, a fourth connecting threaded hole is formed in the top plate, the fourth connecting threaded hole corresponds to the second connecting threaded hole in position, and the connecting screw can sequentially penetrate through the second connecting threaded hole and the fourth connecting threaded hole in a matched mode.
Further, still include the sleeve, be provided with the screw thread through-hole in the sleeve, the sleeve passes through screw thread through-hole matching suit on the screw rod, and the sleeve setting is at sheathed tube top.
Further, the joint pressing plate comprises a connecting portion and a pressing plate portion which are connected together, the upper end of the connecting portion is hinged to the lower end of the screw, the connecting portion is located in the sleeve, and the lower end face of the pressing plate portion is a plane.
In addition, the technical problem to be solved by the invention is to provide the fuel tank air tightness detection tool which is simple in structure, convenient to use and capable of ensuring the sealing effect of the sealing plug.
Fuel tank gas tightness detects frock, including the centre gripping work piece, connecting fastener, the closing plug and foretell fuel tank gas tightness detect the closing tool of closing up of closing plug, the centre gripping work piece includes centre gripping upper portion and centre gripping lower part, centre gripping upper portion can reciprocate, be provided with third connect the through hole on the centre gripping upper portion, be provided with the second in the circumference of third connect the through hole and connect the fixed plate, connecting fastener can be in the same place first connect the fixed plate, the second connects the fixed plate can be dismantled to link together, and the sleeve pipe is arranged in the third connect the through hole.
Furthermore, a first connecting through hole is formed in the first connecting and fixing plate, a fourth connecting through hole is formed in the second connecting and fixing plate, the connecting and fastening piece is a connecting bolt, and the connecting and fastening piece penetrates through the first connecting through hole and the fourth connecting through hole in a matched mode to detachably connect the first connecting and fixing plate and the second connecting and fixing plate together.
The invention has the beneficial effects that: the sealing plug pressing tool for detecting the air tightness of the fuel tank comprises a sleeve, a screw rod and a joint pressing plate, wherein a first connecting fixing plate is arranged on the circumference of the sleeve, a first connecting threaded hole is formed in the top of the sleeve, and the upper end of the screw rod penetrates through the first connecting threaded hole in a matching mode. When the air tightness of the fuel tank is detected, the whole pressing tool is fixed on the clamping upper part through the first connecting fixing plate, the joint pressing plate presses the sealing plug, the sealing plug is pressed on the opening part of the fuel tank, and the sealing effect of the sealing plug is ensured; the pressing force can be adjusted by the sleeve and the screw, the lower end of the screw is hinged with the joint pressing plate, so that the angle of the joint pressing plate can be adjusted, and the joint pressing plate is convenient to use when the opening of the fuel tank is an inclined plane. The sealing plug pressing tool is used for pressing the sealing plug, reduces the possibility of untight sealing of the sealing plug, ensures the sealing effect of the sealing plug, is particularly suitable for the condition that the opening of a fuel tank is an inclined plane, has a simple structure, is convenient to use, has low manufacturing cost and running cost, and is beneficial to popularization.
The fuel tank air tightness detection tool comprises the pressing tool for the sealing plug, and the sealing effect of the sealing plug is guaranteed, so that the fuel tank air tightness detection is facilitated, and the accuracy of a detection result is improved.
Drawings
Fig. 1 is a schematic structural view of a sealing plug pressing tool;
FIG. 2 is a schematic view of the construction of the joint press plate;
FIG. 3 is a schematic view of the air tightness detection tool during detection;
parts, positions and numbers in the drawings: the fuel tank comprises a sleeve 1, a screw rod 2, a joint pressure plate 3, a connecting part 31, a pressure plate part 32, a first connecting and fixing plate 4, a first connecting and fixing hole 41, a top plate 51, a bottom plate 52, an elastic piece 53, a connecting screw 54, a sleeve 6, a connecting fastener 7, a clamping upper part 8, a third connecting and fixing hole 81, a second connecting and fixing plate 9, a handle 10 and a fuel tank 11.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 and 2, the pressing tool for the fuel tank air tightness detection sealing plug comprises a sleeve 1 with an opening at the lower part, a screw rod 2 and a joint pressing plate 3, wherein a first connecting fixing plate 4 is arranged on the circumference of the sleeve 1, a first connecting threaded hole is formed in the top of the sleeve 1, the upper end of the screw rod 2 penetrates through the first connecting threaded hole in a matching mode, and the lower end of the screw rod 2 is hinged with the joint pressing plate 3. After the sleeve 1 is fixed on the clamping upper portion 8, the screw rod 2 can be moved up and down in the first connecting threaded hole by rotating the screw rod 2, the screw rod 2 drives the joint pressing plate 3 to move up and down, and the sealing plug can be pressed tightly and the pressing force can be adjusted by rotating the screw rod 2. The lower end of the screw rod 2 is hinged with the joint pressing plate 3, so that the joint pressing plate 3 forms a universal joint, the angle of the joint pressing plate 3 can be adjusted, and the joint pressing plate is convenient to use when the opening of the fuel tank 11 is an inclined plane.
When the compaction tool is used for detecting the air tightness of the fuel tank 11, the compaction tool is fixed on the clamping upper part 8 of a clamping workpiece through the first connecting and fixing plate 4, so that the compaction tool and the clamping upper part 8 are integrated, and then the power cylinder drives the compaction tool to move up and down when driving the clamping upper part 8 to move up and down, so that a sealing plug arranged at the opening part of the fuel tank 11 is compacted and loosened.
Specifically, in order to facilitate the screw rod 2 to rotate in the first connection threaded hole, the handle 10 is further arranged, the handle 10 is connected and arranged at the upper end of the screw rod 2, the screw rod 2 is driven by rotating the handle 10, the handle 10 is preferably a nut, the nut is simple in structure, and installation and use are facilitated.
In order to further improve the pressing force of the pressing tool on the sealing plug, the sealing effect of the sealing plug is ensured. The pressing tool is further provided with a pressing assembly, the pressing assembly comprises a top plate 51, a bottom plate 52, an elastic piece 53 and a connecting screw 54, the elastic piece 53 is preferably a spring, the top of the sleeve 1 is provided with a second connecting threaded hole, the top plate 51 is provided with a second connecting through hole, and the bottom plate 52 is provided with a third connecting threaded hole; the top plate 51, the elastic piece 53 and the bottom plate 52 are sequentially arranged in the sleeve 1 from top to bottom, the top plate 51 is sleeved on the screw rod 2 through the second connecting through hole, and the top plate 51 can move up and down along the screw rod 2; the bottom plate 52 is sleeved on the screw rod 2 through the third connecting threaded hole in a matching mode, the elastic piece 53 is sleeved on the screw rod 2, the upper end of the elastic piece 53 is connected with the top plate 51, the lower end of the elastic piece 53 is connected with the bottom plate 52, the connecting screw 54 penetrates through the second connecting threaded hole in a matching mode, and the connecting screw 54 can enable the top plate 51 to move downwards. When the air tightness of the fuel tank 11 is detected, the connecting screw 54 passes through the second connecting threaded hole to exert a downward acting force on the top plate 51, so that the top plate 51 moves downwards, the elastic piece 53 is compressed to apply a pressure to the bottom plate 52, and as the bottom plate 52, the screw rod 2 and the joint pressing plate 3 are integrated, the elastic piece 53 applies a pressure to the bottom plate 52, namely the elastic piece 53 applies a pressure to the joint pressing plate 3, so that the pressing force of the joint pressing plate 3 on the sealing plug is improved. For stability of downward movement of the top plate 51, the number of the second coupling screw holes and the number of the coupling screws 54 are equal and are each plural, and one coupling screw 54 is disposed through one second coupling screw hole. In order to improve the connection effect of the bottom plate 52 fixed on the screw rod 2 and further adjust the pressing force of the pressurizing assembly, an adjusting fastening nut 55 is further arranged, the adjusting fastening nut 55 is sleeved on the screw rod 2, the bottom plate 52 is arranged on the adjusting fastening nut 55 in an abutting mode, the adjusting fastening nut 55 provides a supporting force for the bottom plate 52, the distance between the top plate 51 and the bottom plate 52 is adjusted by adjusting the installation height of the adjusting fastening nut 55 on the screw rod 2, the compression force of the elastic piece 53 is adjusted, and therefore the adjustment of the pressing force of the pressurizing assembly is achieved. In order to improve the stability of the pressurizing assembly, a fourth connecting threaded hole is formed in the top plate 51, the position of the fourth connecting threaded hole corresponds to that of the second connecting threaded hole, and the connecting screw 54 sequentially penetrates through the second connecting threaded hole and the fourth connecting threaded hole in a matched mode.
In order to reduce the possibility that the screw rod 2 shakes and deviates when moving up and down, the sleeve 6 is further arranged, a thread through hole is formed in the sleeve 6, the sleeve 6 is sleeved on the screw rod 2 in a matched mode through the thread through hole, and the sleeve 6 is arranged at the top of the sleeve 1.
The joint pressure plate 3 is used for pressing the sealing plug, and a preferable structure of the joint pressure plate 3 of the present invention is: as shown in fig. 2, the joint pressure plate 3 includes a connecting portion 31 and a pressure plate portion 32 connected together, the upper end of the connecting portion 31 is hinged to the lower end of the screw rod 2, the connecting portion 31 is located in the casing 1, the lower end surface of the pressure plate portion 32 is a plane, the cross-sectional diameter of the pressure plate portion 32 is larger than the cross-sectional diameter of the casing 1, and the pressure plate portion 32 is prevented from entering the casing 1 and affecting the use of the pressure plate portion 32.
When the air tightness of the fuel tank 11 is detected, the whole pressing tool is fixed on the clamping upper part 8 through the first connecting and fixing plate 4, the joint pressing plate 3 presses the sealing plug, the sealing plug is pressed on the opening part of the fuel tank 11, and the sealing effect of the sealing plug is ensured; the pressing force can be adjusted by the sleeve 1 and the screw rod 2, the lower end of the screw rod 2 is hinged with the joint pressing plate 3, so that the angle of the joint pressing plate 3 can be adjusted, and the joint pressing plate is convenient to use when the opening of the fuel tank 11 is an inclined plane. The sealing plug pressing tool is used for pressing the sealing plug, reduces the possibility of untight sealing of the sealing plug, ensures the sealing effect of the sealing plug, is particularly suitable for the condition that the opening of the fuel tank 11 is an inclined plane, has a simple structure, is convenient to use, has low manufacturing cost and running cost, and is beneficial to popularization.
As shown in fig. 3, the fuel tank airtightness detection tool comprises a clamping workpiece, a connecting fastener 7, a sealing plug and a pressing tool for the fuel tank airtightness detection sealing plug, wherein the clamping workpiece comprises a clamping upper portion 8 and a clamping lower portion, the clamping upper portion 8 can move up and down under the action of a power cylinder, a third connecting through hole 81 is formed in the clamping upper portion 8, a second connecting and fixing plate 9 is arranged in the circumferential direction of the third connecting through hole 81, the connecting fastener 7 can detachably connect the first connecting and fixing plate 4 and the second connecting and fixing plate 9 together, and the sleeve 1 is located in the third connecting through hole 81.
The process for detecting the air tightness of the fuel tank by using the detection tool comprises the following steps: the fuel tanks 11 are placed in the lower clamping part, the opening part of one fuel tank 11 corresponds to one third connecting through hole 81, the opening part of one fuel tank 11 is connected with the compressed air inlet assembly, and the opening parts of the other fuel tanks 11 are respectively provided with a sealing plug for sealing; then the first connecting and fixing plate 4 and the second connecting and fixing plate 9 are connected together through the connecting fastener 7, so that the sleeve 1 is positioned in the third connecting through hole 81; then, controlling the power cylinder to enable the clamping upper part 8 to move downwards to clamp the fuel tank together with the clamping lower part, adjusting the angle of the joint pressing plate 3 to enable the joint pressing plate 3 to press the sealing plug, and adjusting appropriate pressing force on the sealing plug by rotating the screw rod 2 and the connecting screw 54; and finally, putting the whole clamped fuel tank 11 into a test water tank, and simultaneously controlling a compressed air introducing assembly to introduce compressed air with measured pressure into the fuel tank 11 so as to detect the air tightness of the fuel tank 11.
In order to fix the whole pressing tool in the clamping upper portion 8, a first connecting through hole is formed in the first connecting and fixing plate 4, a fourth connecting through hole is formed in the second connecting and fixing plate 9, the connecting and fastening piece 7 is a connecting bolt, and the connecting and fastening piece 7 penetrates through the first connecting through hole and the fourth connecting through hole in a matched mode to detachably connect the first connecting and fixing plate 4 and the second connecting and fixing plate 9 together. In order to improve the connection firmness of the first connection fixing plate 4 and the second connection fixing plate 9, the first connection fixing plate 4, the connection fasteners 7 and the second connection fixing plate 9 are the same in number and are all multiple in number, the first connection fixing plate 4 is uniformly distributed in the circumferential direction of the sleeve 1, the second connection fixing plate 9 is uniformly distributed in the circumferential direction of the third connection through holes 81, and one first connection fixing plate 4 is connected with one second connection fixing plate 9 through one connection fastener 7.
In conclusion, the fuel tank air tightness detection tool ensures the sealing effect of the sealing plug, is more convenient for detecting the air tightness of the fuel tank 3 and ensures the accuracy of the detection result.
Claims (10)
1. The compressing tool for the air tightness detection sealing plug of the fuel tank is characterized in that: the connecting device comprises a sleeve (1) with an opening at the lower part, a screw rod (2) and a joint pressing plate (3), wherein a first connecting fixing plate (4) is arranged in the circumferential direction of the sleeve (1), a first connecting threaded hole is formed in the top of the sleeve (1), the upper end of the screw rod (2) is matched with and penetrates through the first connecting threaded hole, and the lower end of the screw rod (2) is hinged with the joint pressing plate (3).
2. The pressing tool for the air tightness detection sealing plug of the fuel tank according to claim 1, is characterized in that: the handle (10) is connected and arranged at the upper end of the screw rod (2).
3. The pressing tool for the air tightness detection sealing plug of the fuel tank according to claim 1, is characterized in that: the first connecting fixing plate (4) is provided with a first connecting through hole (41).
4. The pressing tool for the air tightness detection sealing plug of the fuel tank according to claim 1, is characterized in that: the pressure device is characterized by further comprising a pressure assembly, wherein the pressure assembly comprises a top plate (51), a bottom plate (52), an elastic piece (53) and a connecting screw (54), a second connecting threaded hole is formed in the top of the sleeve (1), a second connecting through hole is formed in the top plate (51), and a third connecting threaded hole is formed in the bottom plate (52);
the top plate (51), the elastic piece (53) and the bottom plate (52) are sequentially arranged from top to bottom, the top plate (51) is sleeved on the screw rod (2) through the second connecting through hole, and the top plate (51) can move up and down along the screw rod (2);
the bottom plate (52) is sleeved on the screw rod (2) through the third connecting threaded hole in a matching mode, the elastic piece (53) is sleeved on the screw rod (2), the upper end of the elastic piece (53) is connected with the top plate (51), the lower end of the elastic piece (53) is connected with the bottom plate (52), the connecting screw (54) penetrates through the second connecting threaded hole in a matching mode, and the top plate (51) can move downwards through the connecting screw (54).
5. The pressing tool for the air tightness detection sealing plug of the fuel tank as claimed in claim 4, is characterized in that: still including adjusting fastening nut (55), adjust fastening nut (55) suit on screw rod (2), and bottom plate (52) pastes and leans on the setting on adjusting fastening nut (55).
6. The pressing tool for the air tightness detection sealing plug of the fuel tank as claimed in claim 4, is characterized in that: a fourth connecting threaded hole is formed in the top plate (51), the position of the fourth connecting threaded hole corresponds to that of the second connecting threaded hole, and the connecting screw (54) can sequentially penetrate through the second connecting threaded hole and the fourth connecting threaded hole in a matched mode.
7. The pressing tool for the air tightness detection sealing plug of the fuel tank according to claim 1, is characterized in that: still include sleeve (6), be provided with the screw thread through-hole in sleeve (6), sleeve (6) pass through screw thread through-hole matching suit on screw rod (2), and sleeve (6) set up the top at sleeve pipe (1).
8. The pressing tool for the air tightness detection sealing plug of the fuel tank as claimed in any one of claims 1 to 7, is characterized in that: the joint pressing plate (3) comprises a connecting part (31) and a pressing plate part (32) which are connected together, the upper end of the connecting part (31) is hinged with the lower end of the screw rod (2), the connecting part (31) is positioned in the sleeve (1), and the lower end face of the pressing plate part (32) is a plane.
9. Fuel tank gas tightness detects frock, including centre gripping work piece, connecting fastener (7), sealing plug and claim 1-8 any one the compaction frock of fuel tank gas tightness detection sealing plug, the centre gripping work piece includes centre gripping upper portion (8) and centre gripping lower part, centre gripping upper portion (8) can reciprocate, be provided with third connecting hole (81) on centre gripping upper portion (8), be provided with second connection fixed plate (9) in the circumference of third connecting hole (81), connecting fastener (7) can be in the same place first connection fixed plate (4), second connection fixed plate (9) can be dismantled to link, and sleeve pipe (1) is arranged in third connecting hole (81).
10. The fuel tank airtightness detection tool according to claim 9, characterized in that: the first connecting fixing plate (4) is provided with a first connecting through hole, the second connecting fixing plate (9) is provided with a fourth connecting through hole, the connecting fastener (7) is a connecting bolt, and the connecting fastener (7) is matched with and penetrates through the first connecting through hole and the fourth connecting through hole to detachably connect the first connecting fixing plate (4) and the second connecting fixing plate (9) together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911260256.5A CN110987303B (en) | 2019-12-10 | 2019-12-10 | Fuel tank air tightness detection tool and sealing plug pressing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911260256.5A CN110987303B (en) | 2019-12-10 | 2019-12-10 | Fuel tank air tightness detection tool and sealing plug pressing tool |
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| Publication Number | Publication Date |
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| CN110987303A true CN110987303A (en) | 2020-04-10 |
| CN110987303B CN110987303B (en) | 2021-10-22 |
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| CN201911260256.5A Active CN110987303B (en) | 2019-12-10 | 2019-12-10 | Fuel tank air tightness detection tool and sealing plug pressing tool |
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| CN110987303B (en) | 2021-10-22 |
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