CN114536430A - Port circular cutting device of large polyethylene heat-preservation outer protection bent pipe - Google Patents
Port circular cutting device of large polyethylene heat-preservation outer protection bent pipe Download PDFInfo
- Publication number
- CN114536430A CN114536430A CN202210261471.2A CN202210261471A CN114536430A CN 114536430 A CN114536430 A CN 114536430A CN 202210261471 A CN202210261471 A CN 202210261471A CN 114536430 A CN114536430 A CN 114536430A
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- ring
- wall
- cutting device
- polyethylene
- penetrating
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- 239000004698 Polyethylene Substances 0.000 title claims abstract description 67
- -1 polyethylene Polymers 0.000 title claims abstract description 67
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 67
- 238000005520 cutting process Methods 0.000 title claims abstract description 48
- 238000004321 preservation Methods 0.000 title claims abstract description 29
- 230000000149 penetrating effect Effects 0.000 claims abstract description 49
- 238000009413 insulation Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
- B26D1/143—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
- B26D1/15—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with vertical cutting member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D2007/013—Means for holding or positioning work the work being tubes, rods or logs
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
A port circular cutting device of a large polyethylene heat-preservation outer protection elbow relates to a port circular cutting device of a heat-preservation outer protection elbow, a lantern ring (16) is sleeved on the outer wall of the end part of a polyethylene pipe (36), an insert ring (14) is inserted into the inner wall of the end part of the polyethylene pipe, the outer ends of a plurality of penetrating rods (9) are hinged with a shaft seat (24) at the outer end of a rotating ring (22), positioning screws (6) respectively press the penetrating rods close to the outer part on the rotating ring, grooved wheels (8) arranged in the middle of the penetrating rods are clamped on annular convex rails (12) of the insert ring, wheels (5) arranged at the inner ends of the penetrating rods are positioned in annular grooves (32) between double convex rings (27) of the lantern ring, a sleeve (7) is sleeved between the middle part and the inner end of each penetrating rod, and one sleeve is provided with a cutter body (3) for circular cutting the end part of the polyethylene pipe; the polyethylene pipe is clamped by the lantern ring and the insert ring, and the circular cutting of the port of the polyethylene pipe is obtained by the rotation of the rotating ring and the cutter body.
Description
Technical Field
The invention relates to a port circular cutting device for a heat-insulation outer protection bent pipe, in particular to a port circular cutting device for a large polyethylene heat-insulation outer protection bent pipe.
Background
The polyethylene outer insulating pipe is an external protective layer in a prefabricated direct-buried insulating pipe, and the existing prefabricated direct-buried insulating pipe has the main structure that rigid polyurethane foam is filled between the polyethylene outer insulating pipe and an inner steel pipe, and is mainly applied to liquid and gas conveying pipe networks, chemical pipeline insulating engineering petrochemical engineering and the like; the prefabricated direct-buried heat insulation pipe is a main pipe used for urban central heating, is directly buried underground during construction, can save a large amount of energy by utilizing the excellent corrosion resistance and heat insulation performance of the pipe after long-term operation, is simple and convenient to construct, and has the diameter of the pipe generally larger than sixty centimeters in order to increase the conveying capacity; the pipe wall is bright after anticorrosive treatment, the paint spraying process when the preparation steel pipe, and the preparation technology and the self characteristic of polyethylene heat preservation outer protecting pipe have decided the cutting at both ends comparatively unnormal "not neat", influence the impression when making the customer accept, especially the preparation of return bend, receive the influence of crooked position and the influence of deformation and carry out the normalized cutting of tip more can't be through inserting behind the great supporter, to the cutting unnormal two pipeline connection effect when still influencing the construction.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a port circular cutting device of a large polyethylene heat-insulation outer protection elbow pipe.
The technical scheme for realizing the invention is as follows:
a port ring cutting device of a large polyethylene heat-preservation outer protection elbow comprises a lantern ring, an insert ring, a rotating ring, a penetrating rod, a grooved wheel, a sleeve, a wheel and a cutter body, wherein the lantern ring is sleeved on the outer wall of the end part of a polyethylene pipe, the insert ring is inserted into the inner wall of the end part of the polyethylene pipe, the end face of the polyethylene pipe is exposed on the outer end face of the lantern ring and the end part of the insert ring close to the outer end, the rotating ring and the outer end of the insert ring are arranged at intervals, the outer ends of the penetrating rods and the outer end of the rotating ring are hinged and connected by a plurality of equidistant shaft seats arranged in a surrounding way, a plurality of positioning screws respectively press the outer parts of the penetrating rods close to the inner ends of the rotating ring, sheave grooves arranged in the middle parts of the penetrating rods are clamped on an annular convex track on the outer end face of the insert ring, the wheels arranged at the inner ends of the penetrating rods are respectively positioned in the ring grooves between the double-bulge rings on the outer end face of the lantern ring, a sleeve is sleeved between the middle part and the inner end of each penetrating rod, and a cutter body for cutting the end part of the polyethylene pipe in a circular mode is arranged on one sleeve.
The port ring cutting device of the large polyethylene heat-preservation outer protection elbow pipe is characterized in that a wide opening which is convenient to sleeve outside the polyethylene pipe is arranged at the inner end inner wall port of the sleeve ring.
The port circular cutting device of the large polyethylene heat-preservation outer protection elbow pipe is characterized in that a plurality of screw holes B which are arranged in a surrounding mode are formed in the outer edge of the lantern ring, which is close to the inner end, and a plurality of locking screws penetrate through the screw holes B and then are pushed against the outer wall, which is close to the outer end, of the polyethylene pipe.
The port circular cutting device of the large polyethylene heat-preservation outer protection elbow pipe is characterized in that a conical socket which is convenient to penetrate into the inner wall of a polyethylene pipe is arranged on the outer wall of the inner end of the inserting ring.
The port ring cutting device of the large polyethylene heat-preservation outer protection elbow pipe is characterized in that a plurality of equidistant shaft seats are arranged on the outer edge of the outer end of a rotating ring, a support ring arranged at the outer end of a penetrating rod is positioned in the interval between two vertical plates of the shaft seats, and a hole in the middle of a shaft penetrating vertical plate is hinged with a shaft hole of the support ring; a bulge is arranged on the outer wall of the rotating ring between every two shaft seats; a locking ring is arranged on the outer part of the penetrating rod, and a positioning screw penetrates through a unthreaded hole of the locking ring and then is connected with a screw hole A of the rotating ring close to the inner end.
The port circular cutting device of the large polyethylene heat-preservation outer protection elbow pipe is characterized in that a square rod is arranged from the middle part to the outer end of the penetrating rod.
The port ring cutting device of the large polyethylene heat-preservation outer protection elbow pipe is characterized in that two vertical plates of a cutter holder of a cutter body are fixed on one side wall of a sleeve, cutter shaft holes corresponding to each other are respectively arranged in the middle parts of the two vertical plates of the cutter holder, a hole in the middle part of the cutter body is sleeved on a cutter shaft, and two ends of the cutter shaft are fixedly connected with the cutter shaft holes of the two vertical plates of the cutter holder; the cutter body is of a circular structure, and the annular cutting edge of the cutter body corresponds to the outer wall of the insert ring.
The port circular cutting device of the large polyethylene heat-preservation outer protection elbow pipe is characterized in that an annular groove is formed in the outer wall of the insert ring corresponding to an annular cutting edge of the cutter body.
The port circular cutting device of the large polyethylene heat-preservation outer protection elbow pipe is characterized in that a handle is arranged at the outer end of the cutter holder.
The port circular cutting device of the large polyethylene heat-preservation outer protection elbow pipe is characterized in that a bearing A is arranged inside a wheel, and the inner ring of the bearing A is fixedly connected with the outer wall of the inner end of a penetrating rod; a bearing B is arranged in the grooved wheel, and the inner ring of the bearing B is fixedly connected with the outer wall of the middle part of the penetrating rod; the pipe hole of the sleeve is movably sleeved on the penetrating rod, and two ends of the sleeve are in clearance fit with the bearing A and the bearing B respectively.
Through the disclosure, the beneficial effects of the invention are as follows:
the port circular cutting device of the large polyethylene heat-preservation outer protection elbow pipe utilizes the insert ring and the lantern ring to clamp the inside and the outside of the end part of the polyethylene pipe, and obtains the positioning of the insert ring and the lantern ring by locking the locking screw, connecting the wheel groove of the grooved wheel to the annular convex track of the insert ring and the wheel to the double convex rings of the lantern ring, and obtaining the circular cutting of the end part of the polyethylene pipe by utilizing the rotation of the manual control rotating ring and the pressing of the handle; the invention is not limited to the end cutting of the large-scale heat-preservation outer protection bent pipe, and is also suitable for the end cutting of the heat-preservation outer protection straight pipe.
Drawings
FIG. 1 is a schematic view of the assembled structure of the present invention;
FIG. 2 is a schematic perspective view of a swivel of the present invention;
FIG. 3 is a schematic perspective view of the insert ring of the present invention;
FIG. 4 is a schematic perspective view of the collar of the present invention;
FIG. 5 is a perspective view of a toolholder according to the present invention;
figure 6 is a schematic view of the sheave construction of the present invention;
figure 7 is a schematic view of the wheel construction of the present invention;
FIG. 8 is a perspective view of the present invention;
FIG. 9 is a schematic view of the structure of the present invention in use;
in the figure: 1. a handle; 2. a tool holder; 3. a cutter body; 4. a cutter shaft; 5. a wheel; 6. a set screw; 7. a sleeve; 8. a grooved wheel; 9. penetrating a rod; 10. locking a ring; 11. a support ring; 12. an annular raised track; 13. an annular groove; 14. inserting a ring; 15. a tapered socket; 16. a collar; 17. a bearing A; 18. a bearing B; 19. a shaft; 20. a light hole; 21. a tube hole; 22. rotating the ring; 23. a screw hole A; 24. a shaft seat; 25. locking screws; 26. a screw hole B; 27. a double-convex ring; 28. widening the mouth; 29. a shaft hole; 30. a protrusion; 31. spacing; 32. a ring groove; 33. a cutter shaft hole; 34. a wheel groove; 35. a square bar; 36. a polyethylene tube.
Detailed Description
The present invention will be further illustrated with reference to the following examples; the following examples are not intended to limit the present invention, and are only used as a support for the implementation of the present invention, and any equivalent structure replacement within the technical framework of the present invention is included in the protection scope of the present invention;
referring to fig. 1-9, the port ring cutting device for a large polyethylene heat-insulating outer protection elbow comprises a lantern ring 16, an insert ring 14, a rotating ring 22, a through rod 9, a grooved pulley 8, a sleeve 7, a wheel 5 and a cutter body 3, wherein a wide opening 28 convenient to be sleeved outside a polyethylene pipe 36 is arranged at an inner end inner wall port of the lantern ring 16, the lantern ring 16 is sleeved on an outer wall of an end portion of the polyethylene pipe 36, a plurality of screw holes B26 arranged in a surrounding manner are arranged at an outer edge of the lantern ring 16 close to the inner end, a plurality of locking screws 25 penetrate through the screw holes B26 and then are supported on an outer wall of the polyethylene pipe 36 close to the outer end, the insert ring 14 is inserted into the inner wall of the end portion of the polyethylene pipe 36, a tapered insertion opening 15 convenient to penetrate through the inner wall of the polyethylene pipe 36 is arranged at an outer end surface of the lantern ring 16 exposed at an outer end surface of the lantern ring 16 close to an outer end portion of the insert ring 14, the rotating ring 22 and an outer end of the insert ring 14 are arranged at intervals, outer ends of the through rods 9 are hinged to a plurality of shaft seats 24 arranged in a surrounding manner at equal intervals with the rotating ring 22, the positioning screws 6 respectively press the outer parts, close to the inner ends, of the penetrating rods 9 on the rotating ring 22, the grooved wheels 8 and the wheel grooves 34 arranged in the middle of the penetrating rods 9 are clamped on the annular raised rails 12 on the outer end faces of the insert rings 14, the wheels 5 arranged at the inner ends of the penetrating rods 9 are respectively positioned in the annular grooves 32 between the double raised rings 27 on the outer end faces of the lantern rings 16, a sleeve 7 is sleeved between the middle part and the inner end of each penetrating rod 9, and a cutter body 3 for cutting the end part of a polyethylene pipe 36 in an annular mode is arranged on one sleeve 7.
Referring to fig. 1, 2 or 8, the outer edge of the outer end of the rotating ring 22 is provided with a plurality of equidistant shaft seats 24, the supporting ring 11 arranged at the outer end of the penetrating rod 9 is positioned in the interval 31 between two vertical plates of the shaft seats 24, and the shaft 19 penetrates through the hole in the middle of the vertical plate and forms a hinged connection with the shaft hole 29 of the supporting ring 11; a bulge 30 is arranged on the outer wall of the rotating ring 22 between every two shaft seats 24; a locking ring 10 is arranged near the outer part of a through rod 9, a set screw 6 passes through a smooth hole 20 of the locking ring 10 and then is connected with a screw hole A23 near the inner end of a rotating ring 22, and the square rod 35 is arranged from the middle part to the outer end of the through rod 9.
With reference to fig. 1 or 5, the two vertical plates of the cutter holder 2 of the cutter body 3 are fixed on one side wall of the sleeve 7, the middle parts of the two vertical plates of the cutter holder 2 are respectively provided with a cutter shaft hole 33 corresponding to each other, the middle hole of the cutter body 3 is sleeved on the cutter shaft 4, two ends of the cutter shaft 4 are fixedly connected with the cutter shaft holes 33 of the two vertical plates of the cutter holder 2, and the outer end of the cutter holder 2 is provided with a handle 1; the cutter body 3 is of a circular structure, the annular cutting edge of the cutter body 3 corresponds to the outer wall of the insert ring 14, and an annular groove 13 is formed in the outer wall of the insert ring 14 corresponding to the annular cutting edge of the cutter body 3.
With reference to fig. 1, 6 or 7, a bearing a17 is arranged inside the wheel 5, and an inner ring of the bearing a17 is fixedly connected with an outer wall of an inner end of the penetrating rod 9; a bearing B18 is arranged inside the grooved pulley 8, and the inner ring of the bearing B18 is fixedly connected with the outer wall of the middle part of the penetrating rod 9; the pipe hole 21 of the sleeve 7 is movably sleeved on the through rod 9, and two ends of the sleeve 7 are in clearance fit with the bearing A17 and the bearing B18 respectively.
In the port circular cutting device for the large polyethylene heat-preservation outer protection elbow pipe, the rotating ring 22, the inserting ring 14 and the lantern ring 16 are made of hard plastics, and a steel plate strip is embedded into the annular groove 13 of the inserting ring 14; the cutter holder 2, the sleeve 7 and the through rod 9 are made of steel materials; the wheels 5 and sheaves 8 are made of nylon.
The specific installation process comprises the following steps:
with reference to fig. 1 to 8, the outer rings of the four bearings a17 are respectively fixedly connected with the inner hole walls of the four wheels 5; the outer rings of the four bearings B18 are respectively fixedly connected with the inner hole walls of the four grooved wheels 8; the inner rings of four bearings B18 are respectively and fixedly connected with the positions close to the square rods 35 in the middle of the four penetrating rods 9, then three sleeves 7 and a sleeve 7 pipe hole 21 with a tool holder 2 are respectively sleeved on the penetrating rods 9, the inner rings of four bearings A17 are respectively and fixedly connected with the inner ends of the four penetrating rods 9, and at least gaps are reserved between the two ends of the sleeve 7 with the tool holder 2 and the two bearings, so that the sleeve 7 with the tool holder 2 can flexibly rotate; respectively putting the support rings 11 of the four penetrating rods 9 into the shaft seat 24, connecting the support rings 11 and the shaft seat 24 in series by using four shafts 19, respectively penetrating the four positioning screws 6 into the locking rings 10 arranged on the square rods 35 of the penetrating rods 9, and then connecting the four positioning screws with the screw holes A23 of the rotating ring 22; the four locking screws 25 are respectively connected with the screw holes B26 of the lantern ring 16 for standby.
When in use, with reference to fig. 1 to 9, the lantern ring 16 is sleeved on the outer edge of the end part of the polyethylene pipe 36, then the insert ring 14 is inserted into the inner wall of the polyethylene pipe 36, the end part of the polyethylene pipe 36 is positioned between the annular groove 13 of the insert ring 14 and the annular convex rail 12, which is arranged according to the deepest position of the opening at the end part of the polyethylene pipe 36, so as to ensure that the opening at the end part of the polyethylene pipe 36 can be completely cut off, then the four locking screws 25 on the lantern ring 16 are tightened to respectively push the four surfaces of the polyethylene pipe 36 against the outer edge surface of the insert ring 14, one of the four positioning screws 6 is removed, after the penetrating rod 9 is erected, the wheel 5 and the grooved pulley 8 of the other three penetrating rods 9 are used for connecting the annular convex rail 12 of the insert ring 14 and the annular groove 32 of the double convex ring 27 of the lantern ring 16, the tightness of the three positioning screws 6 is adjusted, the wheel 5 and the grooved pulley 8 of the upright penetrating rod 9 are respectively connected with the annular convex rail 12 of the insert ring 14 and the annular groove 32 of the double convex ring 27 of the lantern ring 16, then the set screw 6 is used for penetrating the locking ring 10 of the penetrating rod 9 and the screw hole A23 of the rotating ring 22 and adjusting the tightness of the set screw 6; at this time, the cutter blade 3 is operated to perform a circular cutting operation along the end of the polyethylene pipe 36 by pressing the handle 1, thereby obtaining a standard cut of the end of the polyethylene pipe 36.
The present invention is not described in detail in the prior art.
Claims (10)
1. The utility model provides a port ring cutting device of return bend outside large-scale polyethylene heat preservation, includes lantern ring (16), insert ring (14), change (22), poling (9), sheave (8), sleeve pipe (7), wheel (5) and cutter body (3), characterized by: the lantern ring (16) is sleeved on the outer wall of the end part of the polyethylene pipe (36), the insert ring (14) is inserted into the inner wall of the end part of the polyethylene pipe (36), the end face of the polyethylene pipe (36) is exposed at the outer end face of the lantern ring (16) and the end part of the insert ring (14) close to the outer end, the rotary ring (22) and the outer end of the insert ring (14) are arranged at intervals, the outer ends of a plurality of penetrating rods (9) are hinged with a plurality of equidistant shaft seats (24) arranged at the outer end of the rotary ring (22) in a surrounding mode, a plurality of positioning screws (6) respectively press the outer parts, close to the inner ends, of the penetrating rods (9) into the rotary ring (22), wheel grooves (34) of wheel sheaves (8) arranged in the middle of the penetrating rods (9) are clamped on annular convex tracks (12) on the outer end face of the insert ring (14), wheels (5) arranged at the inner ends of the penetrating rods (9) are respectively arranged in annular grooves (32) between double convex rings (27) on the outer end face of the lantern ring (16), and a sleeve pipe (7) is sleeved between the middle part and the inner end of each penetrating rod (9), one of the sleeves (7) is provided with a cutter body (3) for circularly cutting the end part of the polyethylene pipe (36).
2. The port ring cutting device for the large polyethylene heat-preservation outer protection elbow pipe according to claim 1, is characterized in that: a wide opening (28) which is convenient to be sleeved outside the polyethylene pipe (36) is arranged at the inner wall opening at the inner end of the lantern ring (16).
3. The port ring cutting device for the large polyethylene heat-preservation outer protection elbow pipe according to claim 1 or 2, which is characterized in that: a plurality of screw holes B (26) which are arranged in a surrounding way are arranged on the outer edge of the lantern ring (16) close to the inner end, and a plurality of locking screws (25) penetrate through the screw holes B (26) and then are propped against the outer wall of the polyethylene pipe (36) close to the outer end.
4. The port ring cutting device for the large polyethylene heat-preservation outer protection elbow pipe according to claim 1, is characterized in that: the outer wall of the inner end of the insert ring (14) is provided with a conical socket (15) which is convenient for penetrating into the inner wall of the polyethylene pipe (36).
5. The port ring cutting device for the large polyethylene heat-preservation outer protection elbow pipe according to claim 1, is characterized in that: a plurality of equidistant shaft seats (24) are arranged on the outer edge of the outer end of the rotating ring (22), a supporting ring (11) arranged on the outer end of the penetrating rod (9) is positioned in a space (31) between two vertical plates of the shaft seats (24), and a shaft (19) penetrates through a hole in the middle of the vertical plate and a shaft hole (29) of the supporting ring (11) to form hinged connection; a bulge (30) is arranged on the outer wall of the rotating ring (22) between every two shaft seats (24); a locking ring (10) is arranged on the outer part of the penetrating rod (9) close to the outer part, and a positioning screw (6) penetrates through a unthreaded hole (20) of the locking ring (10) and then is connected with a screw hole A (23) of a rotating ring (22) close to the inner end.
6. The port ring cutting device for the large polyethylene heat-preservation outer protection elbow pipe according to claim 5, is characterized in that: the middle part to the outer end of the penetrating rod (9) is a square rod (35).
7. The port ring cutting device for the large polyethylene heat-preservation outer protection elbow pipe according to claim 1, is characterized in that: the two vertical plates of the cutter holder (2) of the cutter body (3) are fixed on one side wall of the sleeve (7), the middle parts of the two vertical plates of the cutter holder (2) are respectively provided with cutter shaft holes (33) which correspond to each other, the middle hole of the cutter body (3) is sleeved on the cutter shaft (4), and the two ends of the cutter shaft (4) are fixedly connected with the cutter shaft holes (33) of the two vertical plates of the cutter holder (2); the cutter body (3) is of a circular structure, and the annular cutting edge of the cutter body (3) corresponds to the outer wall of the insert ring (14).
8. The port ring cutting device for the large polyethylene heat-preservation outer protection elbow pipe according to claim 7, is characterized in that: an annular groove (13) is arranged on the outer wall of the insert ring (14) corresponding to the annular cutting edge of the cutter body (3).
9. The port ring cutting device for the large polyethylene heat-preservation outer protection elbow pipe according to claim 7, is characterized in that: the outer end of the cutter holder (2) is provided with a handle (1).
10. The port ring cutting device for the large polyethylene heat-preservation outer protection elbow pipe according to claim 1, is characterized in that: a bearing A (17) is arranged in the wheel (5), and the inner ring of the bearing A (17) is fixedly connected with the outer wall of the inner end of the penetrating rod (9); a bearing B (18) is arranged in the grooved pulley (8), and the inner ring of the bearing B (18) is fixedly connected with the outer wall of the middle part of the penetrating rod (9); the pipe hole (21) of the sleeve (7) is movably sleeved on the penetrating rod (9), and two ends of the sleeve (7) are in clearance fit with the bearing A (17) and the bearing B (18) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210261471.2A CN114536430B (en) | 2022-03-17 | 2022-03-17 | Port circular cutting device of large-scale polyethylene heat preservation outer protection elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210261471.2A CN114536430B (en) | 2022-03-17 | 2022-03-17 | Port circular cutting device of large-scale polyethylene heat preservation outer protection elbow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114536430A true CN114536430A (en) | 2022-05-27 |
| CN114536430B CN114536430B (en) | 2024-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210261471.2A Active CN114536430B (en) | 2022-03-17 | 2022-03-17 | Port circular cutting device of large-scale polyethylene heat preservation outer protection elbow |
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| CN (1) | CN114536430B (en) |
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