CN218971976U - Sealing test plug sealed through movable clamping - Google Patents

Abstract

The utility model discloses a sealing test plug sealed by movable clamping, which belongs to the technical field of sealing test and comprises a mandril, a protective sleeve, a bottom block and a sealing ring; the long straight round bar of ejector pin, the hold-down hole has been seted up to the lower extreme of ejector pin, the horizontal straight circular arc lateral wall that pierces through the ejector pin of hold-down hole, the push away the platform has still been encircled on the ejector pin, push away the platform and be in the hold-down hole top, can be in the in-process of filling this device into tap, through the income of sealing washer in push away platform, squeeze platform and protection sleeve inside, make this device fill into tap's in-process, the sealing washer is not in contact with tap inner wall, avoid the end cap to stab into and pull out the in-process, the sealing washer is scraped rotten because the inside sharp edges and corners of tap stabs, effectively reduce the sealing washer in the test end cap and change the number of times, reduce the loss, reduce idle work duration, effectively improve efficiency of software testing.

Description

Sealing test plug sealed through movable clamping

Technical Field

The utility model relates to the technical field of seal testing, in particular to a seal testing plug sealed by movable clamping.

Background

In the production process of the faucet, tightness is required to be strictly ensured, so that after the faucet is produced, each faucet is required to be subjected to tightness detection, the faucet belongs to a product which is required to be fully detected, and only after the faucet is qualified, the faucet can enter the market.

When sealing and testing gas, a test plug is needed to plug a mounting cavity hole for mounting a tap switch, so as to simulate the state that a valve body is mounted on the tap, then a water flowing channel and a water storage cavity of the tap are tested, a rubber sealing ring on the test plug head and the product gas testing position need to be sealed, the sealing allowance is generally between 0.3 and 0.4mm, namely, the contact mutual extrusion interference between the sealing ring and the tap needs to be ensured to be 0.3 to 0.4mm, the existing plug is an integral plug, namely, the PVC integral round rod plug which can be easily purchased in the market is quick and convenient to manufacture, the manufacturing cost is low, the use is simple, and the conventional plug used as a pipeline and the long-term plugging and stopping flow are free from problems;

the plug for sealing the test gas of the tap is used, a plurality of different taps are required to be extruded and sealed continuously in the use process, so that the test gas plug is required to be continuously inserted into the valve body installation part of the empty tap, then gas is injected into the tap to be pressurized, the tightness of the tap is tested, after the test is completed, the test gas plug is pulled out, the tap just tested is taken down, the air tightness test is carried out on another tap, the test gas plug is required to be pulled out and plugged into the sealing test gas continuously, the sealing ring is required to be replaced by the test gas plug to fill the valve body air of the tap, the sealing ring is required to be outwards provided with a protruding sealing allowance of 0.3-0.4mm so as to ensure the tightness of the valve body installation part, the sealing ring is easy to be scraped by burrs of the inner cavity of the tap in the plugging process of the conventional test gas plug, the test gas plug is required to be frequently replaced, the conventional plug is required to be tested, the conventional test is worn about 80 times a day, the consumption of the sealing ring is high, the sealing ring is required to be replaced, and the whole test efficiency is reduced.

Based on the above, the utility model designs a sealing test plug which is sealed by movable clamping, so as to solve the problems.

Disclosure of Invention

The utility model aims to provide a sealing test plug which is sealed by movable clamping, and can prevent a sealing ring from contacting with the inner wall of a faucet in the process of plugging the device into the faucet by taking in the sealing ring into the pushing table, the extruding table and the protective sleeve in the process of plugging the device into the faucet, so that the sealing ring is prevented from being scratched due to the sharp edges in the faucet in the plugging and unplugging processes, the replacement times of the sealing ring in the test plug are effectively reduced, the loss is reduced, the idle work duration is shortened, and the test efficiency is effectively improved.

The utility model is realized in the following way: a seal testing plug sealed by a movable clamp, comprising:

the device comprises a mandril, a protective sleeve, a bottom block and a sealing ring;

the long and straight round rod of the ejector rod is provided with a pressing hole at the lower end of the ejector rod, the pressing hole transversely and straightly penetrates through the circular arc side wall of the ejector rod, the ejector rod is also provided with a pushing and pressing table in a surrounding manner, and the pushing and pressing table is positioned above the pressing hole;

the structure of the bottom block is the same as that of the ejector rod, an adjusting hole penetrating through the circular arc side wall is transversely formed in the upper end of the bottom block, an extrusion table is arranged at the lower end of the bottom block, and the extrusion table is not shielded below the adjusting hole;

the protection sleeve is a cylinder with openings at the upper end and the lower end, a locking hole is transversely formed in the protection sleeve, both ends of the locking hole transversely penetrate through the circular arc side wall of the protection sleeve, and a fastening pin is inserted into the locking hole;

the lower end of the ejector rod and the upper end of the bottom block are respectively inserted into the protective sleeve from the upper end and the lower end, and the two ends of the fastening pin are slidably arranged in the pressing hole and the adjusting hole along the vertical direction;

a sealing ring is clamped between the extrusion table and the upper end of the protective sleeve, another sealing ring is clamped between the extrusion table and the lower end of the protective sleeve, the sealing ring is an elastic rubber ring, the diameter of the inner ring of the sealing ring is larger than the diameters of the lower end of the ejector rod and the upper end of the bottom block, and the diameter of the outer ring of the sealing ring is smaller than the diameters of the edge of the outer rings of the pushing table, the protective sleeve and the extrusion table;

and the vertical axes of the ejector rod, the protective sleeve, the bottom block and the sealing ring are coincided.

Further, the diameter d of the outer ring of the pushing table is larger than the diameter c of the outer ring of the sealing ring, the difference between the diameter d and the diameter c is in the range of 0.4-1mm, and the two sealing rings are identical;

the diameters of the outer rings of the pushing table and the extruding table are the same as the diameter of the protective sleeve;

the ring surfaces of the pushing table and the extruding table are perpendicular to the axis of the protective sleeve.

Further, the pressing hole and the adjusting hole are waist-shaped holes which are the same in size and are vertically formed, and the axes of the locking hole, the pressing hole and the adjusting hole are perpendicular to the axis of the protective sleeve in the same vertical plane;

when the ejector rod and the bottom block are respectively clamped at the upper end and the lower end of the protective sleeve, the pressing hole and the adjusting hole are overlapped in the horizontal direction;

the locking hole is in clearance fit with the fastening pin, the fastening pin is in clearance fit with the pressing hole and the adjusting hole, and the clearance between the fastening pin and the fastening pin, the clearance between the fastening hole and the adjusting hole are not more than 0.2mm;

the length of the fastening pin is smaller than the outer diameter of the protection sleeve.

Further, the lower end of the ejector rod stretches into the sealing cavity of the faucet, the upper end of the ejector rod stretches out of the faucet, the lower end of the bottom block and the bottom of the sealing cavity in the faucet are abutted against each other, and the outer diameters of the ejector rod, the protective sleeve and the bottom block are in clearance fit with a water flow channel in the faucet, wherein the clearance is not more than 0.3mm.

The beneficial effects of the utility model are as follows: 1. according to the utility model, the sealing ring is accommodated and protected inside by manufacturing the pushing table, the extruding table and the protecting sleeve with larger diameters, so that the sealing ring is prevented from being scratched by sharp edges and steps of the faucet head when the plug is plugged in and pulled out, the sealing ring is not contacted with the inner wall of the faucet, the replacement times of the sealing ring in the test plug are effectively reduced, the loss is reduced, the idle work time is shortened, and the test efficiency is effectively improved;

2. because no sealing ring protrudes outwards when the plug is dismounted in the tap, the original sealing ring with interference is plugged into the tap, and the gap fit mounting of the pushing platform, the extruding platform and the protective sleeve with the tap is changed, so that the device is more convenient and labor-saving to mount;

3. when the device is pressed downwards forcefully, the sealing ring is subjected to axial extrusion force, so that the deformation of radial protrusions of the sealing ring exceeds the sealing protrusion allowance of the sealing ring which is originally needed, the water valve mounting hole of the faucet is sealed more tightly, and the sealing effect of the device is better.

Drawings

The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the present utility model and faucet mounting distribution;

FIG. 2 is a schematic diagram of an oblique top-view explosion of the present utility model;

FIG. 3 is an exploded view of the present utility model at an oblique bottom view;

FIG. 4 is an exploded view of the front face of the present utility model;

FIG. 5 is a schematic view of the front structure of the utility model installed inside a faucet;

FIG. 6 is a schematic side view of the utility model installed inside a faucet;

FIG. 7 is a schematic view of the cooperation of the pushing stage and the seal ring according to the present utility model;

fig. 8 is a schematic view of a cross-sectional structure of a hold-down hole according to the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

the device comprises a 1-ejector rod, a 11-compaction hole, a 12-pushing platform, a 2-protection sleeve, a 21-locking hole, a 22-fastening pin, a 3-bottom block, a 31-adjusting hole, a 32-extrusion platform and a 4-sealing ring.

Detailed Description

Referring to fig. 1 to 8, the present utility model provides a technical solution: a seal testing plug sealed by a movable clamp, comprising:

the device comprises a top rod 1, a protective sleeve 2, a bottom block 3 and a sealing ring 4;

the long and straight round rod of the ejector rod 1 is provided with a pressing hole 11 at the lower end of the ejector rod 1, the pressing hole 11 transversely and straightly penetrates through the circular arc side wall of the ejector rod 1, the ejector rod 1 is also provided with a pushing table 12 in a surrounding mode, and the pushing table 12 is positioned above the pressing hole 11;

the structure of the bottom block 3 is the same as that of the ejector rod 1, an adjusting hole 31 penetrating through the circular arc side wall is transversely formed in the upper end of the bottom block 3, an extrusion table 32 is arranged at the lower end of the bottom block 3, and the extrusion table 32 is not shielded below the adjusting hole 31;

the protection sleeve 2 is a cylinder with openings at the upper end and the lower end, the protection sleeve 2 is transversely provided with a locking hole 21, both ends of the locking hole 21 transversely penetrate through the circular arc side wall of the protection sleeve 2, and a fastening pin 22 is inserted into the locking hole 21;

the lower end of the ejector rod 1 and the upper end of the bottom block 3 are respectively inserted into the protective sleeve 2 from the upper end and the lower end, and the two ends of the fastening pin 22 are slidably arranged in the compression hole 11 and the adjusting hole 31 along the vertical direction;

a sealing ring 4 is clamped between the extrusion table 32 and the upper end of the protection sleeve 2, another sealing ring 4 is clamped between the extrusion table 32 and the lower end of the protection sleeve 2, the sealing ring 4 is an elastic rubber ring, the inner ring diameter of the sealing ring 4 is larger than the diameters of the lower end of the ejector rod 1 and the upper end of the bottom block 3, and the outer ring diameter of the sealing ring 4 is smaller than the diameters of the outer ring edges of the pushing table 12, the protection sleeve 2 and the extrusion table 32;

the vertical axis coincidence of ejector pin 1, protection sleeve 2, bottom block 3 and sealing washer 4 can be in the in-process of filling this device into to tap, through with sealing washer 4 income bulldozing platform 12, extrusion platform 32 and protection sleeve 2 inside, make this device fill in the in-process of tap, sealing washer 4 and tap inner wall contact, avoid the end cap to be in the stopper with pull out the in-process, sealing washer 4 is because the inside sharp edges and corners of tap is pricked and is scraped, effectively reduce the sealing washer change number of times in the test end cap, reduce the loss, reduce idle duration, effectively improve test efficiency.

Wherein the diameter d of the outer ring of the pushing table 12 is larger than the diameter c of the outer ring of the sealing ring 4, the difference between the diameter d and the diameter c is in the range of 0.4-1mm, and the two sealing rings 4 are identical;

the outer ring diameters of the pushing table 12 and the extruding table 32 are the same as the diameter of the protection sleeve 2;

the annular surfaces of the pushing table 12 and the extruding table 32 are perpendicular to the axis of the protection sleeve 2, so that the stress direction is stable, and the disassembly and assembly process of the sealing ring 4 is effectively protected;

the pressing hole 11 and the adjusting hole 31 are waist-shaped holes which are the same in size and are vertically formed, and the axes of the locking hole 21, the pressing hole 11 and the adjusting hole 31 are perpendicular to the axis of the protective sleeve 2 in the same vertical plane;

when the ejector rod 1 and the bottom block 3 are respectively clamped at the upper end and the lower end of the protective sleeve 2, the compressing hole 11 and the adjusting hole 31 are overlapped in the horizontal direction;

the locking hole 21 is in clearance fit with the fastening pin 22, the fastening pin 22 is in clearance fit with the pressing hole 11 and the adjusting hole 31, and the clearance between the fastening pin 22 and the fastening pin 22, the clearance between the fastening hole 11 and the adjusting hole 31 are not more than 0.2mm;

the length of the fastening pin 22 is smaller than the outer diameter of the protection sleeve 2, and the fastening pin 22 can slide in the pressing hole 11 and the adjusting hole 31 in an up-down adjusting mode through the structure, so that the ejector rod 1 and the bottom block 3 can clamp the sealing ring 4 with the protection sleeve 2 in an extrusion mode, the sealing ring 4 generates more bulges, more sealing allowance is provided, and the sealing effect is good;

the lower extreme of ejector pin 1 stretches into inside tap's sealed chamber, the top of ejector pin 1 stretches out in tap's outside, the lower extreme of bottom block 3 supports with tap inner seal chamber's bottom each other and leans on, ejector pin 1, protection sleeve 2 and bottom block 3's outside diameter are clearance fit with the rivers passageway in the tap, and the clearance is not more than 0.4mm, and the convenient tap of filling in of this device of being convenient for to pull out also conveniently, receives the resistance little, easy dismounting.

In one embodiment of the utility model:

the embodiment of the utility model provides a sealing test plug sealed by movable clamping, which solves the technical problems that: 1. the prior tap sealing test is used for testing gas operation, a plurality of rubber rings are sleeved on the plug by a conventional plug, the diameter of the inner ring and the outer ring of the rubber rings is required, the diameter c of the outwards protruding maximum diameter of the rubber rings is 0.3-0.4mm larger than the diameter of the inner hole to be plugged in the tap, when the tap is sealed by assembling the rubber rings with the larger diameter, the plug is difficult to plug into the tap, but can be plugged into the tap by force, and effective sealing can be realized, namely, interference fit is formed by the protruding sealing allowance of 0.3-0.4mm, so that sealing is realized, if the protruding allowance is larger, the sealing effect is better, and the plugging is difficult, so that the conventional plug is difficult to install and detach: 2. because the rubber ring is protruded outside the plug for sealing in the conventional sealing process, the raised edge of the rubber ring and the tap are rubbed, scratched and extruded mutually, so that the rubber ring is scratched and damaged by sharp edges and steps in the process of plugging in and unplugging the tap, and the rubber ring is damaged and invalid quickly, so that the service life of the rubber ring is short, the conventional plug is relatively large in loss when the tap is subjected to sealing test, and the sealing ring needs to be replaced for about 80 times in the sealing test of the tap generally, and the two positions of the cavity of the valve body in the tap need to be tested after the sealing of the rubber ring, so that the two rubber rings on one plug are replaced at the same time each time, and the quantity of the lost rubber rings is relatively large; 3. because the rubber ring is required to be tightly hooped in the mounting groove of the plug so as to ensure that the rubber ring cannot fall off when the plug is plugged into the faucet, the rubber ring is required to have enough bulge as a sealing allowance, the operation of sleeving the rubber ring on the plug is difficult and time-consuming, the operation time of dismounting the plug of the rubber ring is far longer than the test time, a great amount of time is consumed in the operation of sleeving the rubber ring on the plug, and the whole test efficiency is reduced.

The technical effects are realized as follows: 1. according to the utility model, the sealing ring 4 is accommodated and protected inside by manufacturing the pushing and pressing table 12, the extruding table 32 and the protecting sleeve 2 with larger diameters, so that the sealing ring 4 is prevented from being scratched by sharp edges and steps of the faucet head when the plug is plugged in and pulled out, the sealing ring 4 is not contacted with the inner wall of the faucet, the replacement times of the sealing ring 4 in the test plug are effectively reduced, the loss is reduced, the idle work time is shortened, and the test efficiency is effectively improved;

2. because no sealing ring 4 protrudes outwards when the plug is dismounted in the faucet, the original sealing ring 4 with interference is plugged into the faucet, and the pushing table 12, the extruding table 32 and the protection sleeve 2 are changed into clearance fit mounting and pulling out of the faucet, so that the device is more convenient and labor-saving to mount;

3. when the device is pressed downwards forcefully, the sealing ring 4 is subjected to axial extrusion force, so that the deformation of radial protrusions of the sealing ring 4 exceeds the sealing protrusion allowance of the sealing ring 4 which is originally required by 0.4mm, the water valve mounting hole of the faucet is sealed more tightly, the sealing effect of the device is better, and the deformation of the sealing ring 4 which is pressed is far greater than the maximum diameter of a conventional sealing ring 4 which is not pressed and can be plugged into the faucet.

The technical scheme in the embodiment of the utility model aims to solve the problems, and the overall thought is as follows:

in order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

When the sealing ring 4 is manufactured, a split type structure is formed by manufacturing the split type ejector rod 1, the protective sleeve 2 and the bottom block 3, and an integrally stressed plug structure can be formed after the assembly is completed, and the split type sealing ring 4 can be split and conveniently connected by separating the split type sealing ring from the bottom block, so that the sealing ring 4 can be sleeved conveniently by only being matched when being sleeved, and the sealing ring 4 is not required to be pulled to deform and sleeved only after being sleeved;

the length of the ejector rod 1 of the device needs to be larger than the length of the valve body of the water tap, so that the ejector rod 1 can extend out of the water tap, and the ejector rod 1 extending out of the water tap can be pushed by an external cylinder, so that the ejector rod 1 is pressed downwards to seal the water tap;

the lower end of the ejector rod 1 is required to be provided with a vertical compression hole 11, the compression hole 11 is a waist-shaped hole vertically arranged on the side wall of the lower end of the ejector rod 1, the compression hole 11 is required to transversely penetrate through the opposite side wall of the ejector rod 1, the axis of the compression hole 11 penetrates through the vertical axis of the ejector rod 1, namely the compression hole 11 is required to coincide with the diameter of the cross section of the ejector rod 1, and the compression hole 11 does not penetrate through the lower end face of the ejector rod 1;

the push rod 1 is also provided with a push table 12 in a ring protruding outwards, the push table 12 is used for limiting the sealing ring 4 by protruding outwards, the diameter of the outer ring of the push table 12 is larger than that of the outer ring of the sealing ring which is not under pressure, so that the sealing ring 4 is protected in the push table 12 in a normal state, the horizontal ring of the push table 12 is covered right above the compression hole 11, the spacing height is the height of the sealing ring 4, the uppermost Fang Bianyan of the compression hole 11 and the bottommost edge of the sealing ring 4 are ensured to be at the same height position, and the push table 12 can downwards extrude the sealing ring 4 as long as the push rod 1 is downwards compressed;

in the process of manufacturing the bottom block 3, the bottom block 3 has the same structure as the ejector rod 1 and is of a round rod-shaped structure, only the bottom block 3 and the ejector rod 1 face opposite directions, the bottom block 3 is also provided with an adjusting hole 31 and an extrusion table 32, the extrusion table 32 is a horizontal annular boss for carrying and extruding the other sealing ring 4, the diameter of the extrusion table 32 is the same as the diameter d of the pushing table 12 and is 0.5mm larger than the diameter c of the outer ring of the sealing ring 4, so that the sealing ring 4 is conveniently accommodated in the pushing table 12 and the extrusion table 32 for protection;

the size and shape of the adjusting hole 31 and the compressing hole 11 are the same, the adjusting hole 31 and the compressing hole 11 are waist-shaped holes with the same height range length, and the positions of the adjusting hole and the compressing hole are the same after the push rod 1 and the bottom block 3 are sleeved and butted, namely the extruding table 32 is positioned right below the opening edge of the adjusting hole 31 below, and after the sealing ring 4 is sleeved on the extruding table 32, the top of the sealing ring 4 is flush with the height position of the bottom edge of the adjusting hole 31 on the same horizontal plane.

Only the bottom of the bottom block 3 needs to be sleeved with the valve body mounting bottom ring surface of the faucet, so that the bottom of the bottom block 3 can be stably stressed in the faucet;

then, a protection sleeve 2 is manufactured, the protection sleeve 2 is of a hollow cylindrical structure, the upper end and the lower end of the protection sleeve 2 are opened, locking holes 21 are needed to be formed in the circular arc annular side walls of the protection sleeve 2, the locking holes 21 are needed to transversely penetrate through the two side walls of the protection sleeve 2, the locking holes 21 are round holes, the outer ring diameter of the protection sleeve 2 is the same as the outer ring diameter d of the pushing table 12, then, fastening pins 22 are needed to be manufactured, the fastening pins 22 are round rods, the fastening pins 22 and the locking holes 21 can be in clearance fit, and the clearance is 0.1mm, so that the insertion is convenient.

When the utility model is installed, firstly, a sealing ring 4 is sleeved on the ring surface of the lower end of the pushing and pressing table 12, and the other sealing ring 4 is sleeved on the ring surface of the top of the pressing table 32, then, the lower end of the ejector rod 1 and the upper end of the bottom block 3 are inserted and sleeved in the protecting sleeve 2, the upper end of the bottom block 3 is a hollow round hole, the lower end surface of the bottom block 3 is sealed, thus, when the ejector rod 1 and the bottom block 3 are both inserted in the protecting sleeve 2, the ejector rod 1 is inserted in the hollow cylinder at the top of the bottom block 3, after the insertion is tight, the sealing ring 4 at the lower end of the ejector rod 1 is horizontally attached and clamped by the bottom surface of the pushing and pressing table 12 and the upper end surface of the protecting sleeve 2, and the sealing ring 4 on the bottom block 3 is attached and clamped between the lower end surface of the protecting sleeve 2 and the top ring surface of the pressing table 32,

at this time, the adjusting hole 31 and the pressing hole 11 are overlapped in height on the inner side and the outer side, the inner surface and the outer surface are tightly attached to each other, then the fastening pin 22 is inserted into the locking hole 21 of the protection sleeve 2, the fastening pin 22 sequentially passes through the locking hole 21, the adjusting hole 31 and the pressing hole 11, and the fastening pin 22 is continuously inserted, and sequentially passes through the pressing hole 11, the adjusting hole 31 and the locking hole 21, so that both ends of the fastening pin 22 penetrate through the whole ejector rod 1, the bottom block 3 and the protection sleeve 2; the lock lever 22 can thus slide up and down along the guide of the kidney-shaped hole in the pressing hole 11 and the adjusting hole 31.

When the device is used, the assembled whole device is plugged into the faucet from top to bottom along the pore canal of the valve body, and the bottom block 3 is plugged downwards vertically, at this time, because the diameter d of the pressing table 12, the protecting sleeve 2 and the extruding table 32 with the largest outer ring diameter of the device is smaller than the diameter of a needed sealing hole in the faucet and the difference is about 0.5mm, the device is easy to plug, and the diameter c of the sealing ring 4 is smaller than the diameter d of the pressing table 12 by 0.5mm, the sealing ring 4 is not contacted with the step and the edge of the locking hole in the faucet, and therefore the pressing table 12, the protecting sleeve 2 and the extruding table 32 of the device can effectively store and protect the sealing ring 4;

the sealing ring 4 is pushed downwards into the faucet to fixedly support the bottom of the faucet, then when the bottom block 3 is propped against the bottom of the faucet needing sealing, the push rod 1 is continuously extruded, the bottom block 3 is propped against and can not be plugged in, at the moment, the push table 12, the protection sleeve 2 and the extrusion table 32 can extrude the two sealing rings 4, the fastening pin 22 is matched with the locking hole 21 and can not move, at the moment, the push rod 1 is pressed downwards, the fastening pin 22 can slide up and down in the pressing hole 11 and the adjusting hole 31, so that the push rod 1 can push the protection sleeve 2 downwards, the protection sleeve 2 can continuously extrude the bottom block 3 downwards, the two sealing rings 4 are stressed by vertical axial pressure among the push table 12, the protection sleeve 2 and the extrusion table 32, the two sealing rings 4 deform after being pressed, the two sealing rings 4 begin to deform radially and outwards to form bulges, the extrusion deformation of the sealing ring 4 is far greater than the conventional reserved sealing allowance by 0.4mm, after the rubber sealing ring 4 is extruded, the extrusion allowance of 1mm can be easily achieved, so that the faucet is effectively sealed, the internal space of the faucet is conveniently sealed, the sealing performance is better, meanwhile, when the faucet is plugged into the faucet, the faucet is not outwards protruded, the unpressurized sealing state is in clearance fit with the faucet, the assembly is labor-saving and simple, the extrusion force is lost when the faucet is pulled out, the sealing ring 4 rebounds to be of the original size, at the moment, the sealing ring 4 is retracted to be in clearance fit with the faucet, the faucet is convenient to pull out, meanwhile, the sealing ring 4 is not scratched, the sealing ring 4 is effectively protected, the faucet is not scratched and damaged, and the sealing ring 4 is not easy to damage. The operation of replacing the sealing ring is more convenient, the sealing ring 4 is not required to be pulled by force to be sleeved due to the interference of the sealing ring 4, but the sealing ring is simply aligned to be sleeved, so that the sealing ring is convenient to assemble and disassemble, convenient to use, low in loss and good in sealing effect.

Because this device is to squeeze the seal, and conventional filling is unsealed, consequently only is applicable to the lower extreme of being filled and has the position of accepting the pressure, and the top also has pressure applying device just can seal, and this device does not have the screw thread in addition, does not need rotatory filling, consequently fills in conveniently, is exclusively applicable to the gas tightness test, and is not applicable to the screw thread locking of conventional water pipe, is not applicable to other long-time seal structures yet, consequently this device only is applicable to the test, replaces the end cap that is conventionally used for testing the gas tightness.

In addition, in the description of the present utility model, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc. are presented, the indicated orientation or positional relationship is based on that shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the indicated apparatus 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 utility model.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.

Claims (4)

1. A seal testing plug sealed by a movable clamp, comprising: the device comprises an ejector rod (1), a protective sleeve (2), a bottom block (3) and a sealing ring (4);

the device comprises a push rod (1), a long straight round rod, a pressing hole (11) and a pushing table (12), wherein the pressing hole (11) is formed in the lower end of the push rod (1), the pressing hole (11) transversely and straightly penetrates through the arc side wall of the push rod (1), the push rod (1) is further provided with the pushing table (12) in a surrounding mode, and the pushing table (12) is located above the pressing hole (11);

the structure of the bottom block (3) is the same as that of the ejector rod (1), an adjusting hole (31) penetrating through the circular arc side wall is transversely formed in the upper end of the bottom block (3), an extrusion table (32) is arranged at the lower end of the bottom block (3), and the extrusion table (32) is not shielded below the adjusting hole (31);

the protection sleeve (2) is a cylinder with openings at the upper end and the lower end, a locking hole (21) is transversely formed in the protection sleeve (2), both ends of the locking hole (21) transversely penetrate through the circular arc side wall of the protection sleeve (2), and a fastening pin (22) is inserted into the locking hole (21);

the lower end of the ejector rod (1) and the upper end of the bottom block (3) are respectively inserted into the protective sleeve (2) from the upper end and the lower end, and the two ends of the fastening pin (22) are slidably arranged in the compression hole (11) and the adjusting hole (31) along the vertical direction;

a sealing ring (4) is clamped between the extrusion table (32) and the upper end of the protective sleeve (2), another sealing ring (4) is clamped between the extrusion table (32) and the lower end of the protective sleeve (2), the sealing ring (4) is an elastic rubber ring, the diameter of the inner ring of the sealing ring (4) is larger than the diameters of the lower end of the ejector rod (1) and the upper end of the bottom block (3), and the diameter of the outer ring of the sealing ring (4) is smaller than the diameters of the edges of the pushing table (12), the protective sleeve (2) and the outer ring of the extrusion table (32);

the vertical axes of the ejector rod (1), the protective sleeve (2), the bottom block (3) and the sealing ring (4) are overlapped.

2. A seal testing plug for sealing by movable clamp according to claim 1, wherein: the diameter d of the outer ring of the pushing table (12) is larger than the diameter c of the outer ring of the sealing rings (4), the difference between the diameter d and the diameter c is in the range of 0.4-1mm, and the two sealing rings (4) are identical;

the diameters of the outer rings of the pushing table (12) and the extruding table (32) are the same as the diameter of the protective sleeve (2);

the annular surfaces of the pushing table (12) and the pressing table (32) are perpendicular to the axis of the protection sleeve (2).

3. A seal testing plug for sealing by movable clamp according to claim 1, wherein: the pressing hole (11) and the adjusting hole (31) are waist-shaped holes which are the same in size and are vertically formed, and the axes of the locking hole (21), the pressing hole (11) and the adjusting hole (31) are perpendicular to the axis of the protection sleeve (2) in the same vertical plane;

when the ejector rod (1) and the bottom block (3) are respectively clamped at the upper end and the lower end of the protective sleeve (2), the pressing hole (11) and the adjusting hole (31) are overlapped in the horizontal direction;

the locking hole (21) is in clearance fit with the fastening pin (22), the fastening pin (22) is in clearance fit with the pressing hole (11) and the adjusting hole (31), and the clearance between the fastening pin (22) and the fastening pin (22), the clearance between the fastening hole (11) and the clearance between the fastening pin and the adjusting hole (31) are not more than 0.2mm;

the length of the fastening pin (22) is smaller than the outer diameter of the protective sleeve (2).

4. A seal testing plug for sealing by movable clamp according to claim 1, wherein: the lower extreme of ejector pin (1) stretches into inside the sealed chamber of tap, the outside at tap is stretched out to the upper end of ejector pin (1), the lower extreme of bottom block (3) is supported each other with the bottom in the tap sealed chamber, the outside diameter of ejector pin (1), protection sleeve (2) and bottom block (3) is clearance fit with the rivers passageway in the tap, and the clearance is not more than 0.3mm.

Images