CN209078592U - Heavy caliber welding tubing seal structure for pressure test - Google Patents
Heavy caliber welding tubing seal structure for pressure test Download PDFInfo
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- CN209078592U CN209078592U CN201821744565.0U CN201821744565U CN209078592U CN 209078592 U CN209078592 U CN 209078592U CN 201821744565 U CN201821744565 U CN 201821744565U CN 209078592 U CN209078592 U CN 209078592U
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- clamp
- screw rod
- top board
- head
- pressure test
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Abstract
Heavy caliber welding tubing seal structure for pressure test, head is fixed to clamp including at least two, fixing to clamp head includes top board and lower clamp plate, lower clamp plate is separable two-flap type structure, and the both ends of two-flap type structure engaging portion respectively symmetrically are provided with two outwardly extending connection structures along horizontal median axis direction；Top board is disc-shaped structure, and top board two sides are symmetrically provided with engaging lug, are equipped with the first screw rod in engaging lug respectively, and the first screw rod lower part is pivotally connected with connection structure；Fixing to clamp head includes that son fixes to clamp head and mother fixes to clamp head, and mother fixes to clamp and is provided with air inlet in the middle part of the top board of head, and air inlet top is linked with the air intake structure being connected with external air source；The utility model can be suitable for the heavy caliber oil pipe of different-diameter, and the setting of the first screw rod, the second screw rod, top board, lower clamp plate can clamp and seal the flange of oil pipe end from both direction, guarantee the accuracy of air seal test.
Description
Technical field:
The utility model relates to oil pipe tailor-welding tool technical field, more specifically a kind of heavy caliber welding tubing seal
Structure for pressure test.
Background technique:
The mechanical etc. of vehicle of fuel oil driving or hydraulic actuation power all be unable to do without various oil pipes, initial feed be all from
It is cut down on the round tube tubing of long root according to size requirement, then according to using position different, is processed into miscellaneous
Shape；Its flange that intermediate special-shaped round tube and special-shaped round tube both ends are generally comprised after the completion of welding；Wherein round tube is by a circle
Pipe bending composition is made of the round tube welding after more bendings, and flange is welded and fixed with intermediate round tube.These oil pipes at
After product are assembled into product, need to face high pressure and test, once irremediable loss will be generated by oil leak occur in use, because
This, has to pass through pressure testing before finished product factory.
The feature of oil pipe abnormity determines that its whole clamping is inconvenient, especially in the oil pipe pressure test bigger to some diameters
When, the size that hand-held clamping tooling is limited to palm is not available；And tubing diameter is larger, and both hands clamping is also difficult to continue
Give enough power；And if it cannot be guaranteed that clamping dynamics and clamping force is continued into certain time length, all will affect test knot
Fruit, and the weld seam that the oil pipe having includes is relatively more, needs convenient for observation.
Summary of the invention:
To solve the above problems, overcome the deficiencies in the prior art, the utility model provides a kind of heavy caliber welding oil pipe
Seal structure for pressure test.
To achieve the above object, heavy caliber welding tubing seal structure for pressure test provided by the utility model, including at least two
A to fix to clamp head, the head that fixes to clamp includes top board and lower clamp plate, and the lower clamp plate is separable two-flap type structure,
The both ends of two-flap type structure engaging portion respectively symmetrically are provided with two outwardly extending connection structures along horizontal median axis direction；
The top board is disc-shaped structure, and the top board two sides are symmetrically provided with engaging lug, wear respectively in the engaging lug
There is the first screw rod, first screw rod lower part is pivotally connected with connection structure；First screw rod top is arranged with suitable
The first nut matched；The head that fixes to clamp includes that son fixes to clamp head and mother fixes to clamp head, and the mother fixes to clamp head
It is provided with air inlet in the middle part of top board, air inlet top is linked with the air intake structure being connected with external air source；Each structure for pressure test
Head is fixed to clamp including at least a mother.
Further, the lower clamp plate includes two pieces of symmetrically arranged semicircular arc yoke configurations, yoke configurations both ends point
Two outwardly extending connecting plates are not symmetrically provided with along horizontal median axis direction, the just opposite connecting plate of two yoke configurations passes through
Piece second screw rod is connected, and second spiro rod rear end is provided with fixed plug, and the second screw rod front is arranged with the second of adaptation
Nut.
Further, it is additionally provided with the second compact heap between second nut and the yoke configurations of close second nut,
Second compact heap is threaded through on two second screw rods in a manner of it can slide.
Further, position of second screw rod between two clip engaging portions is also arranged with annulus, and described first
Screw rod lower end is fixedly linked with annulus.
Further, be additionally provided with the first compact heap between first nut and top board, first compact heap with
The mode that can be slided is threaded through on two first screw rods.
Further, the top board lower part is provided with the groove of annular, and the annular of adaptation is provided in the groove
Gasket, the vertical central axes of the groove and the vertical central axes of gasket and the vertical central axes of top board are in same straight line
On.
Further, the air intake structure is the air inlet pipe that lower end and top board upper surface are fixedly linked, the air inlet pipe
Upper end is connected by the way that valvular pipeline is arranged with external air source.
The beneficial effects of the utility model are: the utility model can be suitable for different-diameter heavy caliber oil pipe, first
The setting of screw rod, the second screw rod, top board, lower clamp plate can clamp and seal the flange of oil pipe end from both direction, guarantee
The accuracy of air seal test；The setting of first compact heap, the second compact heap can be improved removal efficiency, and by the first nut,
It second nut and fixes to clamp head from a distance, avoids nut and fixed to clamp header structure and oil pipe end structure shadow
It rings, it is not easy to the case where screwing and unscrewing；The utility model can be each structure for pressure test include a mother fix to clamp head and
Several height fix to clamp head or several mothers fix to clamp head and several height fix to clamp head or all female fixed
Clamping head.
Detailed description of the invention:
Attached drawing 1 is the structural schematic diagram of the sub- fixed chuck of the utility model；
Attached drawing 2 is the structural schematic diagram of the utility model mother's fixed chuck；
Attached drawing 3 is the configuration schematic diagram of the utility model mother's fixed chuck；
In attached drawing: 1, first screw rod, the 2, first compact heap, 3, top board, 4, lower clamp plate, the 5, second compact heap, 6, second
Screw rod, 7, air inlet pipe, 8, gasket.
Specific embodiment:
To keep the purposes, technical schemes and advantages of the utility model implementation clearer, below in conjunction with the utility model
Attached drawing, the utility model is further described in more detail.
In the description to the utility model, it is to be understood that indicating position or positional relationship are described as based on attached
Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model protection range.In addition, term " first ", " second ", " third " are used for description purposes only, and cannot understand
For indication or suggestion relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is set
Set ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, being rotatablely connected, be slidably connected, being also possible to
It is detachably connected, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also lead to
It crosses intermediary to be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be with
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
As shown in figure 1 and 2, heavy caliber welding tubing seal structure for pressure test, including at least two fix to clamp head, it is described
Fixing to clamp head includes top board 3 and lower clamp plate 4, and the lower clamp plate 4 is separable two-flap type structure, and two-flap type structure combines
The both ends in portion respectively symmetrically are provided with two outwardly extending connection structures along horizontal median axis direction；The top board 3 is
Disc-shaped structure, 3 two sides of top board are symmetrically provided with engaging lug, are equipped with the first screw rod 1 in the engaging lug respectively,
First screw rod, 1 lower part is pivotally connected with connection structure；First screw rod, 1 top is arranged with the first spiral shell of adaptation
It is female；The head that fixes to clamp includes that son fixes to clamp head and mother fixes to clamp head, and the mother fixes to clamp 3 middle part of top board of head
It is provided with air inlet, air inlet top is linked with the air intake structure being connected with external air source；Each structure for pressure test includes at least one
A mother fixes to clamp head.
As shown in Fig. 3, the lower clamp plate 4 includes two pieces of symmetrically arranged semicircular arc yoke configurations, yoke configurations two
End is symmetrically provided with two outwardly extending connecting plates, the just opposite connecting plate of two yoke configurations along horizontal median axis direction respectively
It is connected by second screw rod 6,6 rear end of the second screw rod is provided with fixed plug, and 6 front of the second screw rod is arranged with adaptation
The second nut.
Second nut and the second compact heap 5 is additionally provided between the yoke configurations of the second nut, described second
Compact heap 5 is threaded through on two second screw rods 6 in a manner of it can slide.
Position of second screw rod 6 between two clip engaging portions is also arranged with annulus, 1 lower end of the first screw rod
It is fixedly linked with annulus.
The first compact heap 2 is additionally provided between first nut and top board 3, first compact heap 2 is can slide
Dynamic mode is threaded through on two first screw rods 1.
3 lower part of top board is provided with the groove of annular, and the gasket 8 of the annular of adaptation is provided in the groove,
The vertical central axes of the groove and the vertical central axes of gasket 8 and the vertical central axes of top board 3 are on the same line.
The air intake structure is the air inlet pipe 7 that lower end and 3 upper surface of top board are fixedly linked, and 7 upper end of air inlet pipe is logical
It crosses and valvular pipeline is set is connected with external air source.
Specifically, when in use, the lower clamp plate 4 of two-flap type structure is separated a distance first, by oil pipe one end end
Flange reached out of lower clamp plate 4 gap between top board 3 and lower clamp plate 4；
Then, the second nut is screwed, the second compact heap 5 is allowed to push against lower clamp plate 4, two valves of lower clamp plate 4 tightly press from both sides oil pipe
Firmly；
Then, the first nut is screwed, allows the first compact heap 2 to compress top board 3,3 lower surface of top board is only pressed in flange
On outer end face, 8 gasket 8 of gasket guarantees that top board 3 and flange outer end face are tightly connected；
Then, remaining end fixing clamp of oil pipe is handled according to above-mentioned steps；
Then, oil pipe is sunk in sink, opens air circuit breaker, is inflated into oil pipe.
The utility model can be suitable for different-diameter heavy caliber oil pipe, the first screw rod 1, the second screw rod 6, top board 3,
The setting of lower clamp plate 4 can clamp and seal the flange of oil pipe end from both direction, guarantee the accuracy of air seal test；First
The setting of compact heap 2, the second compact heap 5 can be improved removal efficiency, and by the first nut, the second nut and fix to clamp head
From a distance, avoid nut is influenced by header structure and oil pipe end structure is fixed to clamp, it is not easy to be screwed and be unscrewed
Situation；The utility model can be each structure for pressure test include a mother fix to clamp head and several height fix to clamp head or
Several mothers fix to clamp head and several height fix to clamp head or all mothers fix to clamp head.
It is those skilled in the art known technology in addition to the technical characteristic described in the specification.
Claims (7)
1. heavy caliber welding tubing seal structure for pressure test, including at least two fix to clamp head, it is characterised in that the fixing clamp
Tight head includes top board (3) and lower clamp plate (4), and the lower clamp plate (4) is separable two-flap type structure, and two-flap type structure combines
The both ends in portion respectively symmetrically are provided with two outwardly extending connection structures along horizontal median axis direction；The top board (3) is
Disc-shaped structure, top board (3) two sides are symmetrically provided with engaging lug, are equipped with the first screw rod respectively in the engaging lug
(1), the first screw rod (1) lower part is pivotally connected with connection structure；First screw rod (1) top is arranged with adaptation
The first nut；The head that fixes to clamp includes that son fixes to clamp head and mother fixes to clamp head, and the mother fixes to clamp the upper of head
It is provided with air inlet in the middle part of pressing plate (3), air inlet top is linked with the air intake structure being connected with external air source；Each structure for pressure test
Head is fixed to clamp including at least a mother.
2. heavy caliber welding tubing seal structure for pressure test as described in claim 1, it is characterised in that the lower clamp plate (4) includes
Two pieces of symmetrically arranged semicircular arc yoke configurations, yoke configurations both ends are symmetrically provided with two along horizontal median axis direction respectively
Outwardly extending connecting plate, the just opposite connecting plate of two yoke configurations are connected by second screw rod (6), second screw rod
(6) rear end is provided with fixed plug, and the second screw rod (6) front is arranged with the second nut of adaptation.
3. heavy caliber welding tubing seal structure for pressure test as claimed in claim 2, it is characterised in that second nut with lean on
It is additionally provided between the yoke configurations of nearly second nut the second compact heap (5), side of second compact heap (5) can slide
Formula is threaded through on two second screw rods (6).
4. heavy caliber welding tubing seal structure for pressure test as claimed in claim 2 or claim 3, it is characterised in that second screw rod
(6) position between two clip engaging portions is also arranged with annulus, and the first screw rod (1) lower end is fixedly linked with annulus.
5. heavy caliber welding tubing seal structure for pressure test as described in claim 1, it is characterised in that first nut with it is upper
It is additionally provided between pressing plate (3) the first compact heap (2), first compact heap (2) is threaded through two in a manner of it can slide
On first screw rod (1).
6. heavy caliber welding tubing seal structure for pressure test as described in claim 1, it is characterised in that top board (3) lower part
Be provided with the groove of annular, be provided with the gasket (8) of the annular of adaptation in the groove, the vertical central axes of the groove and
The vertical central axes of the vertical central axes of gasket (8) and top board (3) are on the same line.
7. heavy caliber welding tubing seal structure for pressure test as described in claim 1, it is characterised in that under the air intake structure is
The air inlet pipe (7) that end is fixedly linked with top board (3) upper surface, air inlet pipe (7) upper end is by being arranged valvular pipeline
It is connected with external air source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821744565.0U CN209078592U (en) | 2018-10-26 | 2018-10-26 | Heavy caliber welding tubing seal structure for pressure test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821744565.0U CN209078592U (en) | 2018-10-26 | 2018-10-26 | Heavy caliber welding tubing seal structure for pressure test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209078592U true CN209078592U (en) | 2019-07-09 |
Family
ID=67120819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821744565.0U Active CN209078592U (en) | 2018-10-26 | 2018-10-26 | Heavy caliber welding tubing seal structure for pressure test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209078592U (en) |
-
2018
- 2018-10-26 CN CN201821744565.0U patent/CN209078592U/en active Active
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