CN210524987U - Expanding device - Google Patents
Expanding device Download PDFInfo
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- CN210524987U CN210524987U CN201920828899.4U CN201920828899U CN210524987U CN 210524987 U CN210524987 U CN 210524987U CN 201920828899 U CN201920828899 U CN 201920828899U CN 210524987 U CN210524987 U CN 210524987U
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- supporting
- supporting rod
- stent
- nut
- supporting seat
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Abstract
The utility model relates to the technical field of pipeline maintenance tools, and provides an expansion device, which comprises a supporting rod, wherein an external thread is arranged on the outer circumferential surface of the supporting rod along the length direction of the supporting rod, a supporting seat used for abutting against a pushing flange is sleeved on the end part of at least one end of the supporting rod, a stress nut used for abutting against the pushing supporting seat so as to enable the supporting seat to move along the length direction of the supporting rod is further sleeved on the supporting rod, and an internal thread matched with the external thread is arranged on the inner side surface of the stress nut; the utility model provides an expansion device has following advantage: through erectting expansion device between two corresponding flanges, utilize rotatory this atress nut to order about the supporting seat and outwards remove to expand these two flanges, this expansion device simple structure, the user can expand the action with the operation through ordinary spanner, and the operating space requirement that needs is little, does benefit to user's operation.
Description
Technical Field
The utility model relates to a pipeline repair tools technical field, more specifically say, relate to an expansion device.
Background
In the mechanical maintenance operation of nuclear power, can involve the inspection and the maintenance of disassembling of equipment such as a lot of flanges, pipeline, valve and expansion joint, to the correction of flange depth of parallelism and concentricity not standard enough in the installation phase, because stress release in the follow-up maintenance process, a lot of stagger phenomena have appeared and pipeline clearance surplus is not enough, cause the equipment to be pressed from both sides and can't take out in the flange.
In the past, a jack or a flange separator is used for expanding the flange, but after being used for many times, the following defects are found:
1. the jack and the flange separator require a large operating space around the operating point;
2. when the flange separator is used, the force acting on the flange is small, and the flange separator can only play a role under a particularly good working condition;
3. the jack is limited in telescopic length, so that the jack is not long or short when used every time, cannot be used when the jack is long, a cushion block is required to be added when the jack is short, the cushion block possibly slips when added, and the jack is likely to fall into a pipeline after slipping, so that foreign matters in equipment are increased;
4. when the hydraulic jack and the flange separator are used on site, a large number of high-pressure pipes are used, and once pressure is relieved through misoperation, serious injury accidents can be caused due to the rebound of the pipeline.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an expansion device to solve the many technical problem of restriction when the expansion instrument that exists among the prior art uses.
For realizing the above-mentioned purpose, the utility model discloses a technical scheme be an expansion device, including the bracing piece, follow on the outer periphery of bracing piece the length direction of bracing piece is provided with the external screw thread, the tip activity cover of the at least one end of bracing piece is equipped with and is used for supporting the supporting seat that pushes away the flange, it is used for supporting pushing away still to overlap on the bracing piece the supporting seat so that the supporting seat is followed the atress nut that the length direction of bracing piece removed, the medial surface of atress nut be provided with thread fit's internal thread.
Further, the supporting seat comprises a supporting portion, and a sleeving hole matched with the end portion of the supporting rod is formed in the supporting portion.
Further, the surface of the support part, which is far away from the support rod, is eccentrically provided with an abutting part for abutting against a flange.
Further, the supporting seat comprises a sleeving part for sleeving the end part of the supporting rod, a supporting part arranged on the sleeving part, and an abutting part arranged on the surface of the supporting part far away from the supporting rod.
Further, the sleeve portion, the support portion, and the abutting portion are cylindrical in shape.
Further, the sleeve portion, the support portion, and the central axis of the abutting portion coincide.
Furthermore, the central axes of the sleeve part and the supporting part are superposed, and the abutting part is eccentrically arranged on the supporting part.
Further, the diameter of the supporting portion is larger than that of the sleeving portion.
Furthermore, a lengthened sleeve is arranged between the supporting seat and the stressed nut, and the lengthened sleeve is movably sleeved on the supporting rod.
Furthermore, the number of the supporting seats is two, the two supporting seats are respectively sleeved at two ends of the supporting rod, and the number of the stress nuts is two and the two stress nuts correspond to the supporting seats and are arranged on the supporting rod.
The utility model provides an expansion device's beneficial effect lies in:
through erectting expansion device between two adjacent flanges, a tip butt of supporting the pole is on one of them flange, and another pot head of bracing piece is equipped with the supporting seat that is used for another flange of butt to lateral part at the supporting seat sets up the atress nut, utilizes rotatory this atress nut to order about the supporting seat and outwards removes, thereby expands these two flanges, the utility model provides an expansion device simple structure, the user can be with the operation expansion action through ordinary spanner to the operating space requirement that needs is little, does benefit to user operation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an expanding device mounted between flanges according to an embodiment of the present invention;
fig. 2 is a perspective view of an expanding device according to a first embodiment of the present invention;
FIG. 3 is a perspective view of an expanding device according to a second embodiment of the present invention;
fig. 4 is a perspective view of an expanding device according to a modified example of the second embodiment of the present invention;
FIG. 5 is a perspective view of an expanding device according to a third embodiment of the present invention;
fig. 6 is a perspective view of an expansion device according to a fourth embodiment of the present invention.
The figures are numbered:
| |
1 | |
111 | Abutting |
132 |
| |
2 | |
12 | Sleeving |
133 |
| |
3 | Supporting |
13 | Lengthened |
14 |
| |
11 | Supporting |
131 |
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected or indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention, and are not intended to indicate that a device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as indicating a number of technical features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The following describes the specific implementation of the present invention in more detail with reference to specific embodiments:
as shown in fig. 1, the first embodiment of the present invention provides an expansion device 1, the expansion device 1 is used for opening two corresponding flanges 2 arranged at intervals, an apparatus 3 is arranged between the two flanges 2, the expansion device 1 is erected between the two flanges 2, and is used for expanding the distance between the two flanges 2, so as to facilitate the user to take out the apparatus 3.
As shown in fig. 2, the expansion device 1 includes a support rod 11, an external thread 111 is disposed on an outer circumferential surface of the support rod 11 along a length direction of the support rod 11, a support base 13 for pushing against a flange is movably sleeved on an end portion of at least one end of the support rod 11, a force nut 12 for pushing against the support base 13 so that the support base 13 moves along the length direction of the support rod 11 is sleeved on the support rod 11, the force nut 12 moves toward the flange, and an internal thread (not shown) matched with the external thread 111 is disposed on an inner side surface of the force nut 12.
The working principle of the expanding device 1 of the present embodiment is as follows:
the expansion device 1 is erected between two flanges 2, wherein the end part of one end of a support rod 11 is abutted against one of the flanges 2, a support seat 13 is sleeved on the end part of the other end of the support rod 11, the support seat 13 is fixed on the other flange 2 in a manner that the support seat 13 is fixed in a threaded hole in the flange 2 in a threaded manner, a user rotates a stress nut 12 through a wrench tool to enable the stress nut 12 to approach the support seat 13 and abut against the support seat 13, the stress nut 12 is continuously rotated to drive the support seat 13 to move outwards, the support seat 13 is abutted against the flange 2 to move outwards, the distance between the two flanges 2 is expanded, and the user can take out the equipment 3 arranged between the two flanges 2 conveniently; after the device 3 is removed, the nut 12 is rotated and moved inwards, and the support 13 is withdrawn to its original position, no longer being abutted by the nut 12, so that the user can remove the expansion device 1 from between the two flanges 2.
The present embodiment provides the following technical effects of the stent 1:
through setting up expansion device 1 between two flanges 2 that correspond, the tip butt of the one end of support rod is on one of them flange 2, and the tip cover of the other end of bracing piece 11 is equipped with the supporting seat 13 that is used for another flange 2 of butt to lateral part at supporting seat 13 sets up atress nut 12, utilizes rotatory this atress nut 12 to order about supporting seat 13 and remove outwards, thereby expand these two flanges 2, the utility model provides an expansion device 1 simple structure, the user can be with the operation expansion action through ordinary spanner to the operating space of needs requires for a short time, does benefit to user operation.
Further, as a specific implementation manner of the expanding device 1 according to the first embodiment of the present invention, the supporting seat 13 includes a supporting portion 131, and a sleeve hole (not shown) for engaging with the end portion of the supporting rod 11 is opened inside the supporting portion 131. The supporting portion 131 is sleeved on the end portion of the supporting rod 11 by using a sleeving hole, and the sleeving hole is in clearance fit with the supporting rod 11, so that the supporting portion 131 moves relative to the supporting rod 11.
Further, as the utility model discloses a concrete implementation of the extension fixture 1 that the first embodiment provided, the cover is established the hole off-centre and is seted up on supporting part 131, locate supporting part 131 cover on bracing piece 11, the center pin of supporting part 131 is on a parallel with the center pin of bracing piece 11, but two center pins do not coincide, through this off-centre design, when setting up extension fixture 1 between flange 2, can be close to the center pin setting between two flanges 2 with the center pin of supporting part 131, and the center pin setting between two flanges 2 is kept away from to the center pin of bracing piece 11, equipment 3 setting is kept away from to bracing piece 11 promptly, set up outwards, avoid the user to be blockked by equipment 3 when carrying out rotatory atress nut 12, user's operating space has been increased.
Further, as a specific embodiment of the expanding device 1 according to the first embodiment of the present invention, an abutting portion 132 for fixing the connecting flange 2 is eccentrically provided on the supporting portion 131. When the supporting portion 131 is sleeved on the supporting rod 11, the central axis of the abutting portion 132 is parallel to the central axis of the supporting rod 11, but the two central axes are not overlapped, through the eccentric design, when the expanding device 1 is erected between the flanges 2, the central axis of the abutting portion 132 can be arranged close to the central axis between the two flanges 2, and the central axis of the supporting rod 11 is far away from the central axis between the two flanges 2, namely, the supporting rod 11 is far away from the equipment 3, and is arranged outwards, namely, the stress nut 12 arranged on the supporting rod 11 is close to the user, which is convenient for the user to operate by using a wrench tool, and avoids the user from being blocked by the equipment 3 when rotating the stress nut 12, thereby increasing the operation space.
Further, as shown in fig. 3, as a specific embodiment of the expanding device 1 according to the second embodiment of the present invention, the supporting seat 13 includes a sleeve portion 133 for being sleeved on the end portion of the supporting rod 11, a supporting portion 131 provided on the sleeve portion 133, and an abutting portion 132 provided on the supporting portion 131. The abutment 132 is disposed away from the end of the support rod 11 and projects towards the flange 2.
Further, as a specific embodiment of the expanding device 1 according to the second embodiment of the present invention, the sleeve portion 133, the supporting portion 131, and the abutting portion 132 have a cylindrical shape. By providing the sleeve portion 133, the support portion 131, and the abutting portion 132 in a cylindrical shape, the edges and corners of the above components are reduced, and unnecessary loss due to scratching of the flange 2 or the device 3 is avoided.
Further, as a specific embodiment of the expanding device 1 according to the second embodiment of the present invention, the center axes of the sleeve portion 133, the support portion 131, and the abutting portion 132 are overlapped. By providing the sleeve portion 133, the support portion 131, and the abutting portion 132, the axial length of the support base 13 is increased, and the applicability of the expanding device 1 is increased.
Further, as shown in fig. 4, as an embodiment of the expanding device 1 according to the second embodiment of the present invention, the sleeve portion 133 and the support portion 131 are provided so as to overlap each other in the center axis, and the abutting portion 132 is provided eccentrically on the support portion 131. When the supporting portion 131 is sleeved on the supporting rod 11, the central axis of the abutting portion 132 is parallel to the central axis of the supporting rod 11, but the two central axes are not overlapped, through the eccentric design, when the expanding device 1 is erected between the flanges 2, the central axis of the abutting portion 132 can be arranged close to the central axis between the two flanges 2, and the central axis of the supporting rod 11 is far away from the central axis between the two flanges 2, namely, the supporting rod 11 is far away from the equipment 3, and is arranged outwards, namely, the stress nut 12 arranged on the supporting rod 11 is close to the user, which is convenient for the user to operate by using a wrench tool, and avoids the user from being blocked by the equipment 3 when rotating the stress nut 12, thereby increasing the operation space.
Further, as a specific embodiment of the expanding device 1 according to the second embodiment of the present invention, the diameter of the supporting portion 131 is larger than the diameter of the sleeve portion 133. The side of the supporting portion 131 extends outwards to protrude from the sleeve portion 133, the supporting portion 131 is designed so as to facilitate the eccentric design of the abutting portion 132 on the supporting portion 131, the larger the supporting portion 131 is, the more eccentric the abutting portion 132 can be disposed away from the central axis of the supporting portion 131, when the expansion device 1 is erected, the more outward the supporting rod 11 can be disposed, further increasing the operation space for the user.
Further, as shown in fig. 5, as a specific implementation manner of the expansion device 1 provided by the third embodiment of the present invention, an extension sleeve 14 is disposed between the supporting seat 13 and the stressed nut 12, and the extension sleeve 14 is movably sleeved on the supporting rod 11. The extension sleeve 14 can be integrally formed on the support base 13, and the extension device 1 can be applied to two flanges 2 which are far away from each other by arranging the extension sleeve 14, so that the applicability of the extension device 1 is increased.
Further, as shown in fig. 6, as a specific implementation manner of the expanding device 1 provided by the fourth embodiment of the present invention, the number of the supporting seats 13 is two, the two ends of the supporting rod 11 are respectively sleeved with the supporting seats 13, and the number of the stress nuts 12 is two, and the supporting seats 13 are disposed on the supporting rod 11. Set up supporting seat 13 and atress nut 12 respectively at the both ends of bracing piece 11, can rotate two atress nuts 12 simultaneously, order about two supporting seats 13 and move outwards simultaneously, support and push away two flanges 2 uniformly, unsettled safe two flanges 2 of strutting make tension act on supporting seat 13 relatively uniformly simultaneously, avoid two flanges 2 atress uneven and arouse two flange 2 atress problems.
In the in-service use process, this extension fixture 1 assembles into an organic whole after, supporting seat 13 inserts the bolt hole of flange 2, then begins both sides adjustment atress nut 12 and makes its both sides begin to expand outward, reaches and struts flange 2 mesh, uses two sets of extension fixture 1 can reach parallel flange 2 effect of strutting in flange 2 circumference diagonal angle under general condition, but if meet under the circumstances of great flange 2, proposes evenly to set up three sets of extension fixture 1 in flange 2 circumference in order to guarantee its stability and axial tension of strutting.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An expansion device, characterized by: the supporting device comprises a supporting rod, follow on the outer periphery of bracing piece the length direction of bracing piece is provided with the external screw thread, the tip activity cover of the at least one end of bracing piece is equipped with the supporting seat that is used for supporting and pushes away the flange, still the cover is equipped with on the bracing piece and is used for supporting and pushes away the supporting seat is so that the supporting seat is followed the atress nut that the length direction of bracing piece removed, the medial surface of atress nut be provided with external screw thread fit's internal thread.
2. The stent of claim 1, wherein: the supporting seat comprises a supporting portion, and a sleeving hole matched with the end portion of the supporting rod is formed in the supporting portion.
3. The stent of claim 2, wherein: the surface of the supporting part, which is far away from the supporting rod, is eccentrically provided with a butting part for butting against the flange.
4. The stent of claim 1, wherein: the supporting seat comprises a sleeving part used for sleeving the end part of the supporting rod, a supporting part arranged on the sleeving part, and a butting part arranged on the supporting part far away from the surface of the supporting rod.
5. The stent of claim 4, wherein: the sleeving part, the supporting part and the abutting part are cylindrical.
6. The stent of claim 4, wherein: the sleeve portion, the support portion, and the central axis of the abutting portion coincide.
7. The stent of claim 5, wherein: the sleeve part and the central shaft of the supporting part are arranged in a superposed mode, and the abutting part is eccentrically arranged on the supporting part.
8. The stent of claim 7, wherein: the diameter of the supporting part is larger than that of the sleeving part.
9. The stent of any of claims 1-8, wherein: a lengthened sleeve is arranged between the supporting seat and the stressed nut, and the lengthened sleeve is movably sleeved on the supporting rod.
10. The stent of any of claims 1-8, wherein: the number of the supporting seats is two, the two supporting seats are respectively sleeved at two ends of the supporting rod, and the number of the stress nuts is two and corresponds to the number of the supporting seats arranged on the supporting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920828899.4U CN210524987U (en) | 2019-06-03 | 2019-06-03 | Expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920828899.4U CN210524987U (en) | 2019-06-03 | 2019-06-03 | Expanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210524987U true CN210524987U (en) | 2020-05-15 |
Family
ID=70594295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920828899.4U Active CN210524987U (en) | 2019-06-03 | 2019-06-03 | Expanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210524987U (en) |
-
2019
- 2019-06-03 CN CN201920828899.4U patent/CN210524987U/en active Active
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