CN214754272U - Plug for air tightness test of large-diameter rubber pipe - Google Patents
Plug for air tightness test of large-diameter rubber pipe Download PDFInfo
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- CN214754272U CN214754272U CN202120993515.1U CN202120993515U CN214754272U CN 214754272 U CN214754272 U CN 214754272U CN 202120993515 U CN202120993515 U CN 202120993515U CN 214754272 U CN214754272 U CN 214754272U
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Abstract
A plug connector for air tightness test of a large-diameter rubber pipe comprises a circular base, wherein an outer sleeve extending upwards is formed on the outer ring of the base, an inner inserted pipe extending upwards is formed on the inner ring of the base, a thickening ring is formed on the inner wall of the upper end of the inner inserted pipe and positioned on the upper side of the outer sleeve, a plurality of vertical slots are formed in the inner inserted pipe on the inner side of the outer sleeve, a circular positioning ring is fixedly inserted in the inner inserted pipe on the upper side of the slots, a circular convex ring is formed on the lower end face of the positioning ring, a plurality of notches opposite to the slots are formed in the convex ring, inclined clamping rods are inserted in the notches, a hinge shaft is inserted in the upper ends of the clamping rods, two ends of the hinge shaft are fixedly inserted in the convex ring, and the lower ends of the clamping rods are inserted in the slots of the inner inserted pipe; the middle part of the clamping rod is formed with an oblique clamping groove, and two side walls of the clamping groove are formed with oblique guide grooves. The air pressure structure can be used for automatically fixing the rubber tube when the air is inflated, and the rubber tube and the airtight connector can be conveniently installed and connected.
Description
The technical field is as follows:
the utility model relates to a technical field of rubber tube, more specifically say and relate to a bayonet joint of airtight test of big pipe diameter rubber tube.
Background art:
the rubber tube is a common rubber product, and with the technological progress and research and exploration of the rubber industry, the high-performance rubber tube has competitiveness in the current market. The sealing performance of the rubber tube is an important performance, after the rubber tube is produced, the rubber tube needs to be subjected to airtight detection, so that the defects of an opening, cracks and the like on the rubber tube are avoided, during airtight detection, the rubber tube is placed in a water tank and is immersed in water, two ends of the rubber tube are respectively connected with an airtight connector, gas is injected into the rubber tube, and whether the airtight problem exists is detected by observing bubbles; however, the airtight connector is generally a conical air pipe connector, a clamp structure is required to be fixed when the rubber pipe is sleeved on the air pipe connector, the airtight connector is relatively mounted, connected and dismounted, and particularly, the connection is more inconvenient for a rubber pipe with a large pipe diameter; there is a need for a gas tight plug that facilitates installation connections.
The utility model has the following contents:
the utility model aims at providing a not enough to prior art, and provide a bayonet joint of airtight test of big pipe diameter rubber tube, it is again with the rubber tube plug bush behind the bayonet joint, the atmospheric pressure structure when utilizing to aerify can be fixed the rubber tube automatically, conveniently realizes the erection joint between rubber tube and the airtight joint.
A plug connector for air tightness test of a large-diameter rubber pipe comprises a circular base, wherein an outer sleeve extending upwards is formed on the outer ring of the base, an inner inserted pipe extending upwards is formed on the inner ring of the base, a thickening ring is formed on the inner wall of the upper end of the inner inserted pipe and positioned on the upper side of the outer sleeve, a plurality of vertical slots are formed in the inner inserted pipe on the inner side of the outer sleeve, a circular positioning ring is fixedly inserted in the inner inserted pipe on the upper side of the slots, a circular convex ring is formed on the lower end face of the positioning ring, a plurality of notches opposite to the slots are formed in the convex ring, inclined clamping rods are inserted in the notches, a hinge shaft is inserted in the upper ends of the clamping rods, two ends of the hinge shaft are fixedly inserted in the convex ring, and the lower ends of the clamping rods are inserted in the slots of the inner inserted pipe; an inclined clamping groove is formed in the middle of the clamping rod, and inclined guide grooves are formed in two side walls of the clamping groove;
a cylindrical gas injection head is inserted in the base, a check ring is formed at the lower end of the gas injection head, an external thread connecting sleeve extending downwards is formed on the inner ring of the base, and the outer wall of the check ring abuts against the inner wall of the external thread connecting sleeve; a limiting ring is fixedly inserted on the inner wall of the base, a spring is inserted and sleeved on the gas injection head between the limiting ring and the retaining ring, and two ends of the spring respectively abut against the limiting ring and the retaining ring; an air inlet hole penetrating through the lower end face of the air injection head is formed in the air injection head, an air outlet hole is formed in the outer wall of the upper end of the air inlet hole, and the outer wall of the air injection head at the air outlet hole abuts against the inner wall of the thickening ring;
the gas injection head outer wall of spacing ring upside is formed with a plurality of actuating levers of putting to one side, and the upper end of actuating lever is pegged graft in the draw-in groove of supporting rod, and the upper end grafting of actuating lever is fixed with the round pin axle, and the both ends of round pin axle are pegged graft in the guide way of supporting rod.
Preferably, the central axis of the susceptor and the central axis of the gas-injection head coincide.
Preferably, at least three slots are arranged on the inner inserting pipe, and the slots are uniformly distributed around the central axis of the base in an annular mode.
Preferably, the inclination direction of the driving rod on the gas injection head is opposite to the inclination angle of the clamping rod.
Preferably, the length of the clamping rod is larger than the distance between the inner inserting tube and the outer sleeve on the base.
Preferably, the inner wall of the external thread connecting sleeve on the lower side of the gas injection head is fixedly connected with a baffle ring in an inserting mode, and the check ring on the gas injection head abuts against the baffle ring.
The beneficial effects of the utility model reside in that:
after the rubber tube is inserted and sleeved on the plug connector, the rubber tube can be automatically fixed by utilizing an air pressure structure during inflation, so that the rubber tube and the airtight connector can be conveniently installed and connected; and meanwhile, the disassembly and the separation after the air tightness test are convenient.
Description of the drawings:
fig. 1 is a schematic three-dimensional structure of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a schematic sectional view at a-a in fig. 2.
In the figure: 1. a base; 11. an external thread connecting sleeve; 12. inserting a tube; 13. an outer sleeve; 14. thickening the ring; 15. a slot; 2. a positioning frame; 21. a convex ring; 3. a gas injection head; 31. a retainer ring; 32. an air inlet; 33. an air outlet; 34. a drive rod; 4. a clamping rod; 41. a card slot; 42. a guide groove; 5. a pin shaft; 6. hinging a shaft; 7. a limiting ring; 8. a spring.
The specific implementation mode is as follows:
example (b): as shown in fig. 1 to 3, a plug for air tightness test of a large-diameter rubber tube comprises a circular base 1, an outer sleeve 13 extending upwards is formed on an outer ring of the base 1, an inner sleeve 12 extending upwards is formed on an inner ring of the base 1, a thickening ring 14 is formed on an inner wall of an upper end of the inner sleeve 12, the thickening ring 14 is located on an upper side of the outer sleeve 13, a plurality of vertical slots 15 are formed on the inner sleeve 12 inside the outer sleeve 13, a circular positioning ring 2 is fixedly inserted into the inner sleeve 12 on the upper side of the slots 15, a circular convex ring 21 is formed on a lower end surface of the positioning ring 2, a plurality of notches 22 opposite to the slots 15 are formed on the convex ring 21, an inclined clamping rod 4 is inserted into the notches 22, a hinge shaft 6 is inserted into an upper end of the clamping rod 4, two ends of the hinge shaft 6 are fixedly inserted into the convex ring 21, and a lower end of the clamping rod 4 is inserted into the slots 15 of the inner sleeve 12; an inclined clamping groove 41 is formed in the middle of the clamping rod 4, and inclined guide grooves 42 are formed in two side walls of the clamping groove 41;
a cylindrical gas injection head 3 is inserted into the base 1, a check ring 31 is formed at the lower end of the gas injection head 3, an external thread connecting sleeve 11 extending downwards is formed at the inner ring of the base 1, and the outer wall of the check ring 31 abuts against the inner wall of the external thread connecting sleeve 11; a limiting ring 7 is fixedly inserted on the inner wall of the base 1, a spring 8 is inserted and sleeved on the gas injection head 3 between the limiting ring 7 and the retaining ring 31, and two ends of the spring 8 respectively abut against the limiting ring 7 and the retaining ring 31; an air inlet hole 32 penetrating through the lower end face of the air injection head 3 is formed in the air injection head 3, an air outlet hole 33 is formed in the outer wall of the upper end of the air inlet hole 32, and the outer wall of the air injection head 3 at the air outlet hole 33 is abutted against the inner wall of the thickening ring 14;
a plurality of inclined driving rods 34 are formed on the outer wall of the gas injection head 3 on the upper side of the limiting ring 7, the upper ends of the driving rods 34 are inserted into the clamping grooves 41 of the clamping rods 4, the upper ends of the driving rods 34 are fixedly connected with pin shafts 5 in an inserted mode, and two ends of the pin shafts 5 are inserted into the guide grooves 42 of the clamping rods 4.
Preferably, the central axis of the susceptor 1 and the central axis of the gas-injection head 3 coincide.
Preferably, at least three slots 15 are formed in the inner insert 12, and the slots 15 are uniformly distributed in a ring shape around the central axis of the base 1.
Preferably, the inclination direction of the driving rod 34 on the gas injection head 3 is opposite to the inclination angle of the clamping rod 4.
Preferably, the length of the clamping rod 4 is greater than the distance between the inner cannula 12 and the outer cannula 13 on the base 1.
Preferably, a baffle ring is inserted and fixed on the inner wall of the external thread connecting sleeve 11 on the lower side of the gas injection head 3, and the retainer ring 31 on the gas injection head 3 abuts against the baffle ring.
The working principle is as follows: the utility model relates to a plug for air tightness test of a large-diameter rubber pipe, when in use, the rubber pipe is inserted and sleeved outside an inner insertion pipe 12 and inside an outer sleeve 13 of the plug; then starting the air tightness detection equipment, inflating the air tightness detection equipment into the plug connector, driving the air injection head 3 by air pressure, utilizing the driving rod 34 to open the clamping rod 4 on the positioning frame 2 in the moving process of the air injection head 3, opening the clamping rod 4 to extend out of the inner insertion tube 12, clamping and fixing the rubber tube by the clamping rod 4 in cooperation with the outer sleeve 13, and inflating the rubber tube after the air outlet 33 on the air injection head 3 extends out of the inner insertion tube 12;
when accomplishing the test back, airtight check out test set stops to aerify, and at the effect of spring 8, gas injection head 3 can take place to reset, and gas injection head 3 resets and can realize that supporting rod 4 resets and stretch out and draw back to interior intubate 12 in, then with the rubber tube from the bayonet joint take out from can, it is all comparatively convenient to dismantle and install.
The examples are intended to be illustrative, but not limiting, of the invention. The embodiments can be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the present invention should be determined by the appended claims.
Claims (6)
1. The utility model provides a bayonet joint of airtight test of big pipe diameter rubber tube, includes annular base (1), its characterized in that: an outer sleeve (13) extending upwards is formed on the outer ring of the base (1), an inner sleeve (12) extending upwards is formed on the inner ring of the base (1), a thickening ring (14) is formed on the inner wall of the upper end of the inner sleeve (12), the thickening ring (14) is positioned on the upper side of the outer sleeve (13), a plurality of vertical slots (15) are formed on the inner sleeve (12) on the inner side of the outer sleeve (13), a circular positioning ring (2) is fixedly inserted in the inner sleeve (12) on the upper side of the slots (15), a circular convex ring (21) is formed on the lower end face of the positioning ring (2), a plurality of notches (22) opposite to the slots (15) are formed on the convex ring (21), an inclined clamping rod (4) is inserted in the notches (22), an articulated shaft (6) is inserted in the upper end of the clamping rod (4), two ends of the articulated shaft (6) are fixedly inserted in the convex ring (21), and the lower end of the clamping rod (4) is inserted in the slots (15) of the inner sleeve (12); an inclined clamping groove (41) is formed in the middle of the clamping rod (4), and inclined guide grooves (42) are formed in two side walls of the clamping groove (41);
a cylindrical gas injection head (3) is inserted into the base (1), a check ring (31) is formed at the lower end of the gas injection head (3), an external thread connecting sleeve (11) extending downwards is formed at the inner ring of the base (1), and the outer wall of the check ring (31) abuts against the inner wall of the external thread connecting sleeve (11); a limiting ring (7) is fixedly inserted on the inner wall of the base (1), a spring (8) is inserted and sleeved on the gas injection head (3) between the limiting ring (7) and the retaining ring (31), and two ends of the spring (8) respectively abut against the limiting ring (7) and the retaining ring (31); an air inlet hole (32) penetrating through the lower end face of the air injection head (3) is formed in the air injection head (3), an air outlet hole (33) is formed in the outer wall of the upper end of the air inlet hole (32), and the outer wall of the air injection head (3) at the air outlet hole (33) is abutted against the inner wall of the thickening ring (14);
the gas injection head (3) of spacing ring (7) upside goes up the shaping and has a plurality of actuating levers (34) of putting to one side, and the upper end of actuating lever (34) is pegged graft in draw-in groove (41) of supporting rod (4), and the upper end of actuating lever (34) is pegged graft and is fixed with round pin axle (5), and the both ends of round pin axle (5) are pegged graft in guide way (42) of supporting rod (4).
2. The plug connector for the air tightness test of the large-diameter rubber tube as claimed in claim 1, wherein: the central axis of the base (1) is coincident with the central axis of the gas injection head (3).
3. The plug for the airtight test of the large-diameter rubber tube as claimed in claim 2, wherein: at least three slots (15) are arranged on the inner inserting tube (12), and the slots (15) are uniformly distributed in an annular mode around the central axis of the base (1).
4. The plug connector for the air tightness test of the large-diameter rubber tube as claimed in claim 3, wherein: the inclination direction of the driving rod (34) on the gas injection head (3) is opposite to the inclination angle of the clamping rod (4).
5. The plug connector for the air tightness test of the large-diameter rubber tube as claimed in claim 1, wherein: the length of the clamping rod (4) is larger than the distance between the inner inserting tube (12) and the outer sleeve (13) on the base (1).
6. The plug connector for the air tightness test of the large-diameter rubber tube as claimed in claim 1, wherein: the inner wall of the external thread connecting sleeve (11) at the lower side of the gas injection head (3) is fixedly provided with a baffle ring in an inserted manner, and a check ring (31) on the gas injection head (3) is abutted against the baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120993515.1U CN214754272U (en) | 2021-05-11 | 2021-05-11 | Plug for air tightness test of large-diameter rubber pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120993515.1U CN214754272U (en) | 2021-05-11 | 2021-05-11 | Plug for air tightness test of large-diameter rubber pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214754272U true CN214754272U (en) | 2021-11-16 |
Family
ID=78620541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120993515.1U Active CN214754272U (en) | 2021-05-11 | 2021-05-11 | Plug for air tightness test of large-diameter rubber pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214754272U (en) |
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2021
- 2021-05-11 CN CN202120993515.1U patent/CN214754272U/en active Active
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