CN211965661U - Expansion support rod of pipe expander - Google Patents
Expansion support rod of pipe expander Download PDFInfo
- Publication number
- CN211965661U CN211965661U CN202020136146.XU CN202020136146U CN211965661U CN 211965661 U CN211965661 U CN 211965661U CN 202020136146 U CN202020136146 U CN 202020136146U CN 211965661 U CN211965661 U CN 211965661U
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- rod
- expansion
- flaring
- support rod
- guide head
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Abstract
The utility model discloses an expansion support rod of a pipe expander, which comprises a support rod body, wherein the support rod body comprises an expansion rod, a stabilizing rod and a connecting cylinder, one end of the expansion rod is provided with a guide head, the guide head is conical, the guide head is provided with a plurality of balance holes, the expansion rod is internally provided with an air duct, the balance holes are communicated with the air duct, one end of the air duct penetrates through the side wall of the expansion rod, and is communicated with the outside, the expansion rod is sleeved with an expansion cone which is conical, the expansion cone is in sliding fit with the expansion rod, the expansion rod is provided with a plurality of annular grooves, snap rings are arranged in the annular grooves, the snap rings are detachably matched with the annular grooves, one side of the expansion cone is provided with a clamping groove, the snap rings are matched with the clamping groove, the snap rings are clamped into the ring grooves at the two ends of the flaring cone, so that the position of the flaring cone is fixed, and the flaring cone can expand the pipe of the product.
Description
Technical Field
The utility model relates to a pipe expander field, in particular to expansion support rod of pipe expander.
Background
In the production process of the heat exchanger and the condenser, the metal pipe on the heat exchange cylinder needs to be sleeved on the pipe plate, and expanded to enable the metal pipe and the pipe plate to be precisely combined, so that the expanded tightness can be ensured, and the service lives of the heat exchanger and the condenser can be prolonged.
When the pipe fitting is expanded, a pipe expander is needed and directly participates in the pipe expanding process, so that an expansion support rod in the pipe expander is used. Typical expansion struts are themselves tapered to expand the tubular by varying the depth of insertion into the tubular. However, this requires the use of longer struts and requires space for use. In view of the above problems, a solution is proposed as follows.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an expansion support rod of electric tube expander has the position that can adjust the flaring awl at will, and can sell the branch of using different length instead according to the space, makes the more convenient advantage of use of branch.
The above technical purpose of the present invention can be achieved by the following technical solutions:
an expansion support rod of a pipe expander comprises a support rod body, wherein the support rod body comprises an expansion rod, a stabilizing rod and a connecting cylinder, internal threads are arranged at two ends of the connecting cylinder, external threads are arranged at one ends of the expansion rod and the stabilizing rod, the external threads are matched with the internal threads, a guide head is arranged at one end, away from the connecting cylinder, of the expansion rod, the guide head is fixedly connected with the expansion rod, the guide head is conical, a plurality of balance holes are formed in the guide head, an air duct is formed in the expansion rod, the balance holes are communicated with the air duct, one end of the air duct penetrates through the side wall of the expansion rod and is communicated with the outside, an expansion cone is sleeved on the expansion rod and is conical, the expansion cone is in sliding fit with the expansion rod, a plurality of annular grooves are formed in the expansion rod, a clamping ring is arranged in each annular groove, a bayonet is formed in one side of the clamping ring, the snap ring can be dismantled the cooperation with the annular, one side of flaring awl is equipped with the draw-in groove, the snap ring cooperates with the draw-in groove.
Adopt above-mentioned technical scheme, with the flaring taper sleeve on the expansion link, with two snap ring cards in near the annular of flaring awl both ends, it is fixed with the flaring awl, expansion link and firm pole are all through threaded connection on the connecting cylinder, can choose the expansion link and the firm pole of different length for use according to the space size, the connecting cylinder is by external equipment centre gripping, the seeker can make the convenient inserting of one end of expansion link need broached pipe fitting in, stretch into the expansion link in the pipe fitting, the expansion link can drive the flaring awl fill in the pipe fitting, the realization is to the expand tube of pipe fitting.
Preferably, the expansion rod is sleeved with a positioning clamp, the positioning clamp comprises a positioning rod and two lantern rings, the lantern rings are sleeved on the expansion rod and are in sliding fit with the expansion rod, one end of each lantern ring is provided with a threaded hole, a fastening screw is inserted into the threaded hole, and the fastening screw is in threaded fit with the threaded hole.
By adopting the technical scheme, the sleeve ring is sleeved on the expansion rod, the sleeve ring is moved, a proper position is selected according to the length of the expansion rod, and after the position is determined, the fastening screw is rotated, so that one end of the fastening screw abuts against the side wall of the expansion pipe, and the sleeve ring is fixed.
Preferably, the positioning rod comprises an outer rod and an inner rod, a telescopic groove is formed in one end of the outer rod, the inner rod is inserted into the telescopic groove and is in sliding fit with the telescopic groove, a plug pin is inserted into the outer rod, a plurality of jacks are formed in the inner rod, and the plug pin is in plug-in fit with the jacks.
By adopting the technical scheme, the inner rod is pulled out from the outer rod, the length of the positioning rod can be adjusted, and therefore the lengths of the two expansion rods can be adjusted.
Preferably, a balancing weight is fixedly arranged on the stabilizing rod and is cylindrical.
Adopt above-mentioned technical scheme, the balancing weight can more increase the quality of firm pole to make the focus of branch body remove backward, the staff of being convenient for is to the regulation of expansion link front end position.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is an enlarged view of area A of FIG. 1;
FIG. 3 is an enlarged view of area B of FIG. 1;
fig. 4 is a sectional view of the embodiment.
Reference numerals: 1. an expansion rod; 2. a stabilizing rod; 3. a connecting cylinder; 4. a seeker; 5. a balance hole; 6. an air duct; 7. an opening expanding cone; 8. a snap ring; 9. positioning a rod; 10. a collar; 11. fastening screws; 12. an outer rod; 13. an inner rod; 14. a bolt; 15. and a balancing weight.
Detailed Description
The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.
As shown in fig. 1-4, an expansion strut for a pipe expander includes a strut body. The supporting rod body comprises an expansion rod 1, a stabilizing rod 2 and a connecting cylinder 3. Both ends of connecting cylinder 3 all are equipped with the internal thread, and the one end of expansion link 1 and firm pole 2 all is equipped with the external screw thread. The expansion rod 1 and the stabilizing rod 2 can be fixed at two ends of the connecting cylinder 3 through threads, and the connecting cylinder 3 connects the expansion rod 1 and the stabilizing rod 2 to form a complete supporting rod body. According to the size of the space, the expansion rod 1 and the stabilizing rod 2 with different lengths can be selected, so that the length of the support rod body can be adjusted.
The cylindrical balancing weight 15 is fixedly arranged on the stabilizing rod 2, and the balancing weight 15 increases the mass of the position of the stabilizing rod 2, so that the gravity center of the support rod body moves towards the direction of the stabilizing rod 2. External equipment is additionally arranged on the connecting cylinder 3, and when the center of gravity is deviated to the stabilizing rod 2, one end of the expansion rod 1 far away from the stabilizing rod 2 is easier to adjust.
The expansion rod 1 is sleeved with a positioning clamp, and the positioning clamp comprises a positioning rod 9 and two lantern rings 10. The two ring sleeves are respectively sleeved on the two expansion rods 1, and the length of the positioning rod 9 is the distance between the two expansion rods 1. The positioning rod 9 comprises an outer rod 12 and an inner rod 13, wherein one end of the outer rod 12 is provided with a telescopic groove, and the inner rod 13 is in sliding fit with the telescopic groove. According to the demand of difference, can insert flexible inslot with interior pole 13, or pull out from flexible inslot, realize the regulation to locating lever 9 length.
A bolt 14 is inserted on the outer rod 12, and a plurality of jacks are arranged on the inner rod 13. After the length of locating lever 9 has been adjusted, insert bolt 14 in the jack, make the length of locating lever 9 fixed to make the interval between two spinal branch body fixed, be favorable to carrying out the expand tube to evenly distributed's many pipe fittings.
Threaded holes are formed in one end of the lantern ring 10, and fastening screws 11 are inserted into the threaded holes. After the position of the lantern ring 10 on the expansion rod 1 is determined, the fastening screw 11 is rotated, one end of the fastening screw 11 abuts against the side wall of the expansion rod 1, the lantern ring 10 is fixed, and therefore the structure between the two supporting rod bodies is more stable.
The expansion rod 1 is sleeved with an expanding cone 7, the expansion rod 1 is provided with a plurality of annular grooves, and the annular grooves are internally provided with snap rings 8. Sleeving the flaring cone 7 on the expansion pipe, well positioning the flaring cone 7, and then respectively clamping the two clamping rings 8 in the ring grooves near the flaring cone 7 to fix the flaring cone 7. The flaring awl 7 can enter into the pipe fitting along with the removal of expansion link 1 in, the flaring of flaring awl 7 is conical, can expand the pipe fitting, makes the junction of pipe fitting and other products more stable.
The one end that expansion link 1 kept away from connecting cylinder 3 sets firmly conical guide head 4, and the diameter that expansion link 1 one end was kept away from to guide head 4 is less, can be convenient insert the pipe fitting in to make expansion link 1 can be convenient insert the pipe fitting in, be favorable to the expand tube to the pipe fitting.
The seeker 4 is provided with a plurality of balance holes 5, the expansion rod 1 is internally provided with an air passage 6, the balance holes 5 are communicated with the air passage 6, and one end of the air passage 6 penetrates through the side wall of the expansion rod 1 and is communicated with the outside. The balance hole 5 and the air duct 6 can balance air pressure in the pipe fitting, so that the expansion rod 1 can be more conveniently pulled out of the pipe fitting.
Claims (4)
1. The expansion support rod of the pipe expander comprises a support rod body and is characterized in that the support rod body comprises an expansion rod (1), a stabilizing rod (2) and a connecting cylinder (3), internal threads are arranged at two ends of the connecting cylinder (3), external threads are arranged at one ends of the expansion rod (1) and the stabilizing rod (2) and matched with the internal threads, a guide head (4) is arranged at one end, far away from the connecting cylinder (3), of the expansion rod (1), the guide head (4) is fixedly connected with the expansion rod (1), the guide head (4) is conical, a plurality of balance holes (5) are formed in the guide head (4), an air duct (6) is formed in the expansion rod (1), the balance holes (5) are communicated with the air duct (6), one end of the air duct (6) penetrates through the side wall of the expansion rod (1) and is communicated with the outside, the cover is equipped with flaring awl (7) on expansion link (1), flaring awl (7) are the toper, flaring awl (7) and expansion link (1) sliding fit, be equipped with a plurality of annuluses on expansion link (1), be equipped with snap ring (8) in the annular, the bayonet socket has been seted up to one side of snap ring (8), snap ring (8) can dismantle the cooperation with the annular, one side of flaring awl (7) is equipped with the draw-in groove, snap ring (8) and draw-in groove cooperation.
2. The expansion support rod of the pipe expander according to claim 1, wherein a positioning clamp is sleeved on the expansion rod (1), the positioning clamp comprises a positioning rod (9) and two sleeve rings (10), the sleeve rings (10) are sleeved on the expansion rod (1) and are in sliding fit with the expansion rod (1), one end of each sleeve ring (10) is provided with a threaded hole, a fastening screw (11) is inserted into each threaded hole, and the fastening screw (11) is in threaded fit with the threaded hole.
3. The expansion support rod of the pipe expander as claimed in claim 2, wherein the positioning rod (9) comprises an outer rod (12) and an inner rod (13), one end of the outer rod (12) is provided with a telescopic slot, the inner rod (13) is inserted into the telescopic slot and is in sliding fit with the telescopic slot, a plug pin (14) is inserted into the outer rod (12), the inner rod (13) is provided with a plurality of jacks, and the plug pin (14) is in inserted fit with the jacks.
4. The expansion strut of a pipe expander according to claim 3, wherein a weight (15) is fixed to the stabilizing rod (2), said weight (15) being cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020136146.XU CN211965661U (en) | 2020-01-20 | 2020-01-20 | Expansion support rod of pipe expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020136146.XU CN211965661U (en) | 2020-01-20 | 2020-01-20 | Expansion support rod of pipe expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211965661U true CN211965661U (en) | 2020-11-20 |
Family
ID=73372258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020136146.XU Active CN211965661U (en) | 2020-01-20 | 2020-01-20 | Expansion support rod of pipe expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211965661U (en) |
-
2020
- 2020-01-20 CN CN202020136146.XU patent/CN211965661U/en active Active
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