CN211452729U - Sleeve axial moving mechanism of heat exchange tube pressure test tool - Google Patents
Sleeve axial moving mechanism of heat exchange tube pressure test tool Download PDFInfo
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- CN211452729U CN211452729U CN202020022909.8U CN202020022909U CN211452729U CN 211452729 U CN211452729 U CN 211452729U CN 202020022909 U CN202020022909 U CN 202020022909U CN 211452729 U CN211452729 U CN 211452729U
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- end cover
- heat exchange
- exchange tube
- nut
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Abstract
The utility model relates to a sleeve axial displacement mechanism of heat exchange tube pressure testing frock, include: dabber, sleeve, end cover, hough formula gland, nonstandard nut and steering handle, the end cover sets up in telescopic one of them free end, telescopic another free end is equipped with the card fender portion, the nonstandard nut includes: the nut body reaches the protruding annular convex part that stretches of terminal surface from the nut body, the outer wall of annular convex part is equipped with the draw-in groove to the indent, the one end of end cover is equipped with the chamber of acceping that is used for acceping annular convex part, the inner wall of nut body is equipped with the internal thread, the outer wall of dabber is equipped with the external screw thread section with the internal thread matched with of nut body, huff formula gland install in the draw-in groove of annular convex part and be connected through a plurality of mounting between the end cover, steering handle and non-standard nut fixed connection to can avoid using the spring, not only greatly reduced manufacturing cost, improved structural stability moreover.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a heat exchange tube pressure testing device technical field especially relates to a sleeve axial displacement mechanism of heat exchange tube pressure testing frock.
[ background of the invention ]
When the heat exchange tube pressure testing, need use the end cap to plug up the mouth of pipe of heat exchange tube, end cap structure among the prior art is very simple, adopts the stopper that diameter and heat exchange tube suited promptly, during the pressure testing, with the mouth of pipe of stopper income heat exchange tube, then carry out hydrostatic test for fetching water in the heat exchange tube through the water pump, the defect of this kind of stopper lies in: when the pressure in the heat exchange tube exceeds 40Mpa, the plug is easy to fall off from the tube opening of the heat exchange tube, so in order to solve the technical problem, a pressure test tool for the heat exchange tube is developed by those skilled in the art later, please refer to chinese patent No. 201610912239.5, which includes: core rod, sleeve, the section of thick bamboo that expands of split formula, end cover and sleeve axial displacement mechanism, be equipped with the cone section on the outer wall of the section of thick bamboo that expands of split formula, sleeve axial displacement mechanism includes: with plug fixed connection's limit stop, set up handle and the spring of cover on locating the plug between limit stop and the end cover, the handle includes handle body and handle card fender portion, the handle body is located telescopic outside, handle card fender portion cover is located on the plug, sleeve axial displacement mechanism's theory of operation does: the handle body is pressed towards the sleeve direction, so that the outer end of the handle blocking part is upwards tilted and blocked on the limit stop block, and one end of the handle blocking part close to the handle body presses the end cover downwards, at the moment, the spring is compressed, thereby driving the end cover and the sleeve to move downwards and axially relative to the core rod (i.e. to move towards the small-diameter end of the cone segment) until the blocking part on the sleeve is separated from the split-type expansion cylinder, at the moment, the heat exchange tube can be conveniently arranged in the split-type expansion cylinder, then the handle body is loosened, the compressed spring is reset, under the action of the elasticity of the spring, the end cover and the sleeve move upwards and axially relative to the core rod (i.e. move towards the large-diameter end of the cone section), at the moment, the blocking part on the sleeve is tightly clamped on the outer wall of the cone section of the split expansion cylinder, thereby make the section of thick bamboo that expands of lamella formula and heat exchange tube expand tightly to can carry out the water pressure test of heat exchange tube. The disadvantage of the sleeve axial moving mechanism with the structure is that: 1. the structure is more complex, and the manufacturing cost is higher; 2. if the elastic potential energy of the spring is too large, the handle body can be pressed still; 3. the spring belongs to the wearing parts, and needs to be replaced after being used for a period of time, which is very troublesome.
Therefore, it is necessary to provide an axial sleeve moving mechanism for a pressure testing tool of a heat exchange tube, which solves the above technical problems.
[ Utility model ] content
In order to solve the technical problem, an object of the utility model is to provide a simple structure and can avoid using the sleeve axial displacement mechanism of the heat exchange tube pressure testing frock of spring.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a sleeve axial displacement mechanism of heat exchange tube pressure testing frock, includes: dabber, sleeve, end cover, hough formula gland, nonstandard nut and steering handle, the dabber is located to sleeve and end cover all cover, the end cover sets up in telescopic one of them free end, telescopic another free end is equipped with the card fender portion, pass through threaded connection between end cover and the sleeve, the nonstandard nut includes: the nut body reaches the protruding annular convex part that stretches of terminal surface from the nut body, nut body and annular convex part are all overlapped and are located the dabber, the outer wall of annular convex part is inwards equipped with the draw-in groove, the one end of end cover is equipped with the chamber of acceping that is used for acceping annular convex part, the inner wall of nut body is equipped with the internal thread, the outer wall of dabber is equipped with the external screw thread section with the internal thread matched with of nut body, huff formula gland install in the draw-in groove of annular convex part and be connected through a plurality of mounting between the end cover, steering handle and non-standard nut fixed connection.
Preferably, the utility model provides a sleeve axial displacement mechanism of heat exchange tube pressure testing frock further sets up to: half formula gland includes first semicircular gland and second semicircular gland.
Preferably, the utility model provides a sleeve axial displacement mechanism of heat exchange tube pressure testing frock further sets up to: the fixing piece is a screw.
Preferably, the utility model provides a sleeve axial displacement mechanism of heat exchange tube pressure testing frock further sets up to: the steering handle is welded with the nut body of the non-standard nut.
Preferably, the utility model provides a sleeve axial displacement mechanism of heat exchange tube pressure testing frock further sets up to: and a sealing ring is arranged between the end cover and the mandrel.
Preferably, the utility model provides a sleeve axial displacement mechanism of heat exchange tube pressure testing frock further sets up to: and a sealing ring is arranged between the end cover and the sleeve.
Preferably, the utility model provides a sleeve axial displacement mechanism of heat exchange tube pressure testing frock further sets up to: the blocking part extends inwards from the inner wall of the sleeve.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model provides a sleeve axial displacement simple structure, simple to operate can drive the sleeve through rotating steering handle and do axial displacement for the dabber to can avoid using the spring, not only greatly reduced manufacturing cost, improved structural stability moreover.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of the middle sleeve axial moving mechanism of the present invention.
Fig. 2 is a schematic structural view of the middle core shaft of the present invention.
Fig. 3 is a schematic structural view of the half-type gland of the present invention.
Fig. 4 is a schematic structural diagram of a non-standard nut of the present invention.
In fig. 1 to 4: 1. the nut comprises a mandrel, 10, an external thread section, 2, a sleeve, 20, a blocking part, 3, an end cover, 30, a sealing ring, 31, a sealing ring, 32, a containing cavity, 4, a half type gland, 40, a first semicircular gland, 41, a second semicircular gland, 5, a non-standard nut, 50, a nut body, 500, internal threads, 51, an annular convex part, 510, a step surface, 52, a clamping groove, 6, a steering handle, 7 and a fixing part.
[ detailed description ] embodiments
It is right below through specific embodiment that the utility model discloses a sleeve axial displacement mechanism of heat exchange tube pressure testing frock make further detailed description.
Referring to fig. 1 to 4, a sleeve axial moving mechanism of a heat exchange tube pressure testing tool comprises: dabber 1, sleeve 2, end cover 3, huff formula gland 4, nonstandard nut 5 and steering handle 6, dabber 1 is located to sleeve 2 and end cover 3 all overlap, be equipped with sealing washer 30 between end cover 3 and the dabber 1 to better sealing performance has, end cover 3 sets up in one of them free end of sleeve 2, another free end of sleeve 2 is equipped with card fender portion 20, card fender portion 20 inwards extends from the inner wall of sleeve 2, pass through threaded connection between end cover 3 and the sleeve 2, be equipped with sealing washer 31 between end cover 3 and the sleeve 2, thereby have better sealing performance.
The non-standard nut 5 includes: the nut comprises a nut body 50 and an annular convex part 51 protruding from the end face of the nut body 50, the nut body 50 and the annular convex part 51 are both sleeved on a mandrel 1, the outer wall of the annular convex part 51 is inwards concavely provided with a clamping groove 52, one end of an end cover 3 is provided with an accommodating cavity 32 for accommodating the annular convex part 51, the inner wall of the nut body 50 is provided with internal threads 500, the outer wall of the mandrel 1 is provided with an external thread section 10 matched with the internal threads 500 of the nut body 50, the huff-type gland 4 comprises a first semicircular gland 40 and a second semicircular gland 41, the huff-type gland 4 is installed in the clamping groove 52 of the annular convex part 51 and connected with the end cover 3 through a plurality of fixing parts 7, in the embodiment, the fixing parts 7 are screws, and the steering handle 6 is welded with the nut body 50 of the non-standard nut 5.
The utility model discloses well sleeve axial displacement mechanism's theory of operation does: when the rotary steering handle 6 is moved downward, the end of the annular projection 51 of the non-standard nut 5 abuts against the end cap 3, thereby driving the end cover 3, the half-type gland 4 and the sleeve 2 as a whole to do downward axial movement relative to the mandrel 1 until the blocking part 20 of the sleeve 2 is separated from the split-type expansion cylinder (not shown), at the moment, the heat exchange tube can be conveniently arranged in the split-type expansion cylinder or taken out from the split-type expansion cylinder, when the rotary steering handle 6 is moved upward, the stepped surface 510 of the annular protrusion 51 abuts against the bottom surface of the huff-press cover 4, thereby driving the half-type gland 4, the end cover 3 and the sleeve 2 as a whole to move upwards and axially relative to the mandrel 1, at the moment, the blocking part 20 on the sleeve 2 is tightly clamped on the outer wall of the cone section of the split expansion cylinder, thereby make the section of thick bamboo that expands of lamella formula and heat exchange tube expand tightly to can carry out the water pressure test of heat exchange tube.
To sum up, the utility model provides a sleeve axial displacement simple structure, simple to operate can drive the sleeve and make axial displacement for the dabber through rotating steering handle to can avoid using the spring, not only greatly reduced manufacturing cost, improved structural stability moreover.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be applied, and are not intended to limit the present invention; it should be noted that, for those skilled in the art, without departing from the inventive concept, several variations and modifications can be made, which are within the scope of the present invention.
Claims (7)
1. The utility model provides a sleeve axial displacement mechanism of heat exchange tube pressure testing frock which characterized in that includes: dabber, sleeve, end cover, hough formula gland, nonstandard nut and steering handle, the dabber is located to sleeve and end cover all cover, the end cover sets up in telescopic one of them free end, telescopic another free end is equipped with the card fender portion, pass through threaded connection between end cover and the sleeve, the nonstandard nut includes: the nut body reaches the protruding annular convex part that stretches of terminal surface from the nut body, nut body and annular convex part are all overlapped and are located the dabber, the outer wall of annular convex part is inwards equipped with the draw-in groove, the one end of end cover is equipped with the chamber of acceping that is used for acceping annular convex part, the inner wall of nut body is equipped with the internal thread, the outer wall of dabber is equipped with the external screw thread section with the internal thread matched with of nut body, huff formula gland install in the draw-in groove of annular convex part and be connected through a plurality of mounting between the end cover, steering handle and non-standard nut fixed connection.
2. The sleeve axial moving mechanism of the heat exchange tube pressure testing tool as claimed in claim 1, wherein: half formula gland includes first semicircular gland and second semicircular gland.
3. The sleeve axial moving mechanism of the heat exchange tube pressure testing tool as claimed in claim 1, wherein: the fixing piece is a screw.
4. The sleeve axial moving mechanism of the heat exchange tube pressure testing tool as claimed in claim 1, wherein: the steering handle is welded with the nut body of the non-standard nut.
5. The sleeve axial moving mechanism of the heat exchange tube pressure testing tool as claimed in claim 1, wherein: and a sealing ring is arranged between the end cover and the mandrel.
6. The sleeve axial moving mechanism of the heat exchange tube pressure testing tool as claimed in claim 1, wherein: and a sealing ring is arranged between the end cover and the sleeve.
7. The sleeve axial moving mechanism of the heat exchange tube pressure testing tool as claimed in claim 1, wherein: the blocking part extends inwards from the inner wall of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020022909.8U CN211452729U (en) | 2020-01-07 | 2020-01-07 | Sleeve axial moving mechanism of heat exchange tube pressure test tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020022909.8U CN211452729U (en) | 2020-01-07 | 2020-01-07 | Sleeve axial moving mechanism of heat exchange tube pressure test tool |
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| CN211452729U true CN211452729U (en) | 2020-09-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122056A (en) * | 2020-01-07 | 2020-05-08 | 张化机（苏州）重装有限公司 | Sleeve axial moving mechanism of heat exchange tube pressure test tool |
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- 2020-01-07 CN CN202020022909.8U patent/CN211452729U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122056A (en) * | 2020-01-07 | 2020-05-08 | 张化机（苏州）重装有限公司 | Sleeve axial moving mechanism of heat exchange tube pressure test tool |
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