CN109228290A - A kind of highly-safe hard PVC pipe expanding device - Google Patents
A kind of highly-safe hard PVC pipe expanding device Download PDFInfo
- Publication number
- CN109228290A CN109228290A CN201811158798.7A CN201811158798A CN109228290A CN 109228290 A CN109228290 A CN 109228290A CN 201811158798 A CN201811158798 A CN 201811158798A CN 109228290 A CN109228290 A CN 109228290A
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- Prior art keywords
- pvc pipe
- fixedly connected
- wall
- expanding device
- mounting rack
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
- B29C57/02—Belling or enlarging, e.g. combined with forming a groove
- B29C57/04—Belling or enlarging, e.g. combined with forming a groove using mechanical means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The present invention relates to thick-wall plastic tubing technical fields, and disclose a kind of highly-safe hard PVC pipe expanding device, including mounting rack, the Hough formed by two in semi-circular gripping block symmetrical up and down is provided in mounting rack, Hough is gripped by driving mechanisms control or is unclamped hard PVC pipe, oil cylinder is provided on the mounting rack of Hough side, pressure maintaining sizing room is provided on the piston rod of oil cylinder, the side of pressure maintaining sizing room against the Hough is opening-like, is provided with compressed air inlet port on the side wall of pressure maintaining sizing room.The highly-safe hard PVC pipe expanding device, has pvc pipe mouth flaring rounding, it is high that pvc pipe is flared quality, the safety for connecting and using between pvc pipe is improved simultaneously, the movement of pvc pipe expanding device does not need manual handling, it is time saving and energy saving, the advantages that reducing the labor intensity of staff, ensured the efficiency of pvc pipe expanding device flaring.
Description
Technical field
The present invention relates to thick-wall plastic tubing technical field, specially a kind of highly-safe hard PVC pipe expanding device.
Background technique
PVC-U pipe is the abbreviation of hard PVC pipe, is mainly used for water supply and draining, when hard PVC pipe water supply, firmly
Matter pvc pipe does not use injection molding pipe part connector when docking, but expansion is made by expanding device in the side pipe end of hard PVC pipe
Mouth-shaped is docked again after then filling in silica gel sealing ring in flared tube ends, and used expanding device is flaring at present
Mould, use process are: first the hard PVC pipe pipe end being flared will be needed to be heated to heated plastic state, then again insert the side pipe end
Enter flaring die, move flaring die along the radial dilatation of hard PVC pipe, makes hard PVC pipe along radial synchronous expansion
The flare form needed is formed, last cooling and shaping simultaneously removes flaring die.
Through retrieving, Chinese patent grant number is the patent of CN206967955U, discloses a kind of hard PVC pipe flaring dress
It sets, including mounting rack, pressure maintaining sizing room, flaring die, oil cylinder, piston rod.Hard PVC pipe expanding device in above-mentioned patent exists
Following deficiency: pvc pipe unbalance stress in pressure maintaining sizing chamber when pvc pipe flaring is flared inadequate rounding, influences PVC
The quality of pipe flaring, in addition pvc pipe expanding device movement need manual handling in actual use, time-consuming and laborious, labor intensity
It is larger, influence the efficiency of pvc pipe expanding device flaring.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of highly-safe hard PVC pipe expanding device, has pvc pipe
Mouth flaring rounding, it is high that pvc pipe is flared quality, while improving the safety for connecting and using between pvc pipe, pvc pipe expanding device
Movement does not need manual handling, time saving and energy saving, reduces the labor intensity of staff, has ensured that pvc pipe expanding device is flared
Efficiency the advantages that, solve the inadequate rounding of flaring, pvc pipe flaring is second-rate and pvc pipe expanding device is mobile in reality
Manual handling is needed in use, time-consuming and laborious, labor intensity is larger, influences the problem of pvc pipe expanding device is flared efficiency.
(2) technical solution
To realize that above-mentioned pvc pipe mouth is flared rounding, flaring quality is high, while improving the safety for connecting and using between pvc pipe,
The movement of pvc pipe expanding device does not need manual handling, reduces the labor intensity of staff, has ensured pvc pipe expanding device
The purpose of the efficiency of flaring, the invention provides the following technical scheme: a kind of highly-safe hard PVC pipe expanding device, including
Mounting rack is provided with the Hough formed by two in semi-circular gripping block symmetrical up and down in mounting rack, and Hough is by driving
Dynamic mechanism controls grip or unclamp hard PVC pipe, and oil cylinder, the piston rod of oil cylinder are provided on the mounting rack of Hough side
On be provided with pressure maintaining sizing room, the side of the pressure maintaining sizing room against Hough is opening-like, on the side wall of pressure maintaining sizing room
It is provided with compressed air inlet port, the valve that can be opened and closed compressed air inlet port is provided at compressed air inlet port, is being protected
Pressure sizing interior is provided with the flaring die to be flared to hard PVC pipe pipe end, is flared when oil cylinder is pushed by piston rod
When the hard PVC pipe pipe end that mould insertion is fixed clamped by Hough, pressure maintaining sizing room, which is just synchronized by oil cylinder, is pushed to its opening
Tight against on the outer wall of Hough, the sizing room of pressure maintaining at this time and Hough just surround closed pressure maintaining sizing chamber jointly, described at end
The two sidewalls of pressure maintaining sizing room offer circular through hole, and the hole wall of circular through hole is connected with connecting rod, described in two
Connecting rod is connected with link block, and the opposite one end of the link block opens up fluted, and the cell wall of the groove offers
Two symmetrical through-holes, and the hole wall of through-hole is fixedly connected with support plate, the side wall of the support plate offers circular hole, and
The hole wall of circular hole is connected with push rod, and two opposite one end of the push rod are fixedly connected to pushing block, two connections
Symmetrical cavity is offered in bar, the cavity wall of the cavity is fixedly connected with bindiny mechanism, two link block phases
Pair side be fixedly connected to semicircle backplate, two opposite one end of the connecting rod are fixedly connected to threaded rod, two
The equal screw thread of bar wall of a threaded rod is socketed with thread barrel, and the equal fixing sleeve of the outer wall of two thread barrels is connected to the axis of rolling
It holds, the equal fixing sleeve of the outer wall of two rolling bearings is connected to fixed plate, and the lower surface of two fixed plates is and mounting rack
Upper surface be fixedly connected, the equal fixing sleeve of the outer wall of two thread barrels is connected to first gear, the upper surface of the mounting rack
It is fixedly connected with dual-axle motor, two output ends of the dual-axle motor are fixedly connected to second gear, and two described second
Gear is engaged with adjacent first gear, and the lower surface of the mounting rack is fixedly connected with mobile mechanism.
Preferably, the mobile mechanism includes the supporting leg being fixedly connected with mounting rack lower surface four corners, described in four
The outer wall of supporting leg slidably connects bottom plate jointly, and the upper surface of the bottom plate is fixedly connected with electric drive hydraulic thruster, the electricity
The top of hydrodynamic pressure push rod is fixedly connected with the lower surface of mounting rack, and the upper surface four corners of the bottom plate are fixedly connected to ten thousand
To wheel.
Preferably, the bindiny mechanism includes the piston being flexibly connected with cavity cavity wall, the two sidewalls difference of the piston
It is fixedly connected with fixed link and spring, the one end of the spring far from piston is fixedly connected with the cavity wall of cavity, the fixed link
One end far from piston passes through the side wall of cavity and is inserted into through-hole.
Preferably, the lower surface of the oil cylinder is fixedly connected with cushion block, the lower surface of the cushion block and the upper table of mounting rack
Face is fixedly connected.
Preferably, the equal fixing sleeve of bar wall of two push rods is connected to block.
Preferably, the lower surface of the link block is fixedly connected with rubber pad.
Preferably, the lower surface of the mounting rack is fixedly connected with battery.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of highly-safe hard PVC pipe expanding devices, have following beneficial to effect
Fruit:
1, highly-safe hard PVC pipe expanding device, by being provided with dual-axle motor, second gear, the first tooth button and half
Circular plates, when needing to be flared pvc pipe, first in the suitable semicircle shield of pressure maintaining sizing indoor location size
Plate then in the link block insertion groove on semicircle backplate, while making fixed link in link block in spring and piston
It pushes in lower insertion through-hole, then starts dual-axle motor, dual-axle motor drives second gear rotation, and second gear drives the first tooth
Wheel rotation, first gear drive thread barrel rotation, and thread barrel keeps threaded rod mobile, and threaded rod makes semicircle backplate by connecting rod
Close to pvc pipe, and make two semicircle backplate pairings, flaring die is inserted into pvc pipe by oil cylinder later, carries out flaring work
Make, which makes pvc pipe be flared rounding, improves the quality of pvc pipe flaring, while improving what connection between pvc pipe used
Safety.
2, the highly-safe hard PVC pipe expanding device, by being provided with electric drive hydraulic thruster, bottom plate and universal wheel,
When pvc pipe expanding device needs mobile, start electric drive hydraulic thruster first, then electric drive hydraulic thruster pushes bottom plate,
Bottom plate drives universal wheel to move down, and universal wheel jacks up pvc pipe device and is detached from ground later, and staff pushes PVC later
Pipe expanding device is moved, and after reaching place, shrinks electric drive hydraulic thruster, and supporting leg is made to contact ground, which is not required to
Manual handling pvc pipe expanding device is reused, it is time saving and energy saving, the labor intensity of staff is reduced, has ensured pvc pipe expansion
The flaring efficiency of mouth device.
Detailed description of the invention
Fig. 1 is the highly-safe hard PVC pipe expanding device structural schematic diagram of one kind proposed by the present invention；
Fig. 2 is the structural schematic diagram that the highly-safe hard PVC pipe expanding device of one kind proposed by the present invention is overlooked；
Fig. 3 is the structural schematic diagram of the highly-safe hard PVC pipe expanding device A of one kind proposed by the present invention；
Fig. 4 is the structural schematic diagram of the highly-safe hard PVC pipe expanding device B of one kind proposed by the present invention.
In figure: 1 mounting rack, 2 pressure maintainings sizing room, 3 flaring dies, 4 oil cylinders, 5 piston rods, 6 connecting rods, 7 grooves, 8 support plates,
9 push rods, 10 pushing blocks, 11 link blocks, 12 bindiny mechanisms, 13 semicircle backplates, 14 threaded rods, 15 thread barrels, 16 rolling bearings, 17
Fixed plate, 18 first gears, 19 dual-axle motors, 20 second gears, 21 mobile mechanisms, 22 supporting legs, 23 bottom plates, 24 electric hydaulics
Push rod, 25 universal wheels, 26 pistons, 27 fixed links, 28 springs, 29 cushion blocks, 30 batteries.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Fig. 1-4, a kind of highly-safe hard PVC pipe expanding device, including mounting rack 1 are please referred to, is set in mounting rack
Be equipped with by two in the Hough that symmetrical semi-circular gripping block forms up and down, Hough gripped by driving mechanisms control or
Hard PVC pipe is unclamped, oil cylinder is provided on the mounting rack of Hough side, pressure maintaining sizing room 2 is provided on the piston rod of oil cylinder,
The side of pressure maintaining sizing room 2 against Hough is opening-like, is provided with compressed air inlet port on the side wall of pressure maintaining sizing room 2,
The valve that can be opened and closed compressed air inlet port is provided at compressed air inlet port, pressure maintaining sizing room 2 in be provided with to
To the flaring die 3 that hard PVC pipe pipe end is flared, when oil cylinder 4 pushes the insertion of flaring die 3 to be clamped by Hough by piston rod 5
When fixed hard PVC pipe pipe end, pressure maintaining sizing room 2, which is just synchronized by oil cylinder 4, is pushed to its open end tight against in the outer of Hough
On wall, the sizing room 2 of pressure maintaining at this time and Hough just surround closed pressure maintaining sizing chamber jointly, it is characterised in that: pressure maintaining sizing
The two sidewalls of room 2 offer circular through hole, and the hole wall of circular through hole is connected with connecting rod 6, two 6 activities of connecting rod
It is connected with link block 11, the opposite one end of link block 11 opens up fluted 7, and the cell wall of groove 7 opens up that there are two symmetrical
Through-hole, and the hole wall of through-hole is fixedly connected with support plate 8, and the side wall of support plate 8 offers circular hole, and the hole wall activity of circular hole
It is connected with push rod 9, two opposite one end of push rod 9 are fixedly connected to pushing block 10, and symmetrical point is offered in two connecting rods 6
The cavity of cloth, the cavity wall of cavity are fixedly connected with bindiny mechanism 12, and two opposite sides of link block 11 are fixedly connected to half
Circular plates 13, two opposite one end of connecting rod 6 are fixedly connected to threaded rod 14, the equal screw thread of bar wall of two threaded rods 14
It is socketed with thread barrel 15, the equal fixing sleeve of the outer wall of two thread barrels 15 is connected to rolling bearing 16, the outer wall of two rolling bearings 16
Equal fixing sleeve is connected to fixed plate 17, and the lower surface of two fixed plates 17 is fixedly connected with the upper surface of mounting rack 1, two screw threads
The equal fixing sleeve of outer wall of cylinder 15 is connected to first gear 18, and the upper surface of mounting rack 1 is fixedly connected with dual-axle motor 19, dual-axle motor
19 two output ends are fixedly connected to second gear 20, and two second gears 20 are engaged with adjacent first gear 18, peace
The lower surface for shelving 1 is fixedly connected with mobile mechanism 21.
Mobile mechanism 21 includes the supporting leg 22 being fixedly connected with 1 lower surface four corners of mounting rack, four supporting legs 22
Outer wall slidably connects bottom plate 23 jointly, and the upper surface of bottom plate 23 is fixedly connected with electric drive hydraulic thruster 24, electric drive hydraulic thruster
24 top is fixedly connected with the lower surface of mounting rack 1, and the upper surface four corners of bottom plate 23 are fixedly connected to universal wheel 25, should
Structure does not need to reuse manual handling pvc pipe expanding device, time saving and energy saving, reduces the labor intensity of staff, ensures
The flaring efficiency of pvc pipe expanding device.
Bindiny mechanism 12 includes the piston 26 being flexibly connected with cavity cavity wall, and the two sidewalls of piston 26 have been respectively fixedly connected with
Fixed link 27 and spring 28, the one end of spring 28 far from piston 26 are fixedly connected with the cavity wall of cavity, and fixed link 27 is far from piston
26 one end passes through the side wall of cavity and is inserted into through-hole, and bindiny mechanism 12 can be convenient for changing different size of semicircle backplate
13, improve the practicability of pvc pipe expanding device.
The lower surface of oil cylinder 4 is fixedly connected with cushion block 29, the fixed company in the lower surface of cushion block 29 and the upper surface of mounting rack 1
It connects.
The equal fixing sleeve of bar wall of two push rods 9 is connected to block, and block being capable of the anti-excessively movement of throw-out lever 9.
The lower surface of link block 11 is fixedly connected with rubber pad, and rubber pad increases the stability that link block 11 connects.
The lower surface of mounting rack 1 is fixedly connected with battery 30, and electric drive hydraulic thruster 24 and dual-axle motor 19 pass through control
System switch is electrically connected with external power supply, and it is the prior art that this, which is electrically connected, and known to one of skill in the art, herein no longer
It repeats.
In conclusion the highly-safe hard PVC pipe expanding device, first when needing to be flared pvc pipe
The first suitably semicircle backplate 13 of installation dimension in pressure maintaining sizing room 2, then inserts the link block 11 on semicircle backplate 13
Enter in groove 7, while be inserted into the fixed link 27 in link block 11 in through-hole under the promotion of spring 28 and piston 26, then opens
Dynamic dual-axle motor 19, dual-axle motor 19 drive second gear 20 to rotate, and second gear 20 drives first gear 18 to rotate, the first tooth
Wheel 18 drives thread barrel 15 to rotate, and thread barrel 15 keeps threaded rod 14 mobile, and threaded rod 14 makes semicircle backplate 13 by connecting rod 6
Close to pvc pipe, and make two 13 pairings of semicircle backplate, flaring die 3 is inserted into pvc pipe by oil cylinder 4 later, is flared
Work, the structure make pvc pipe be flared rounding, improve the quality of pvc pipe flaring, while improving to connect between pvc pipe and use
Safety, when pvc pipe expanding device needs mobile, starting electric drive hydraulic thruster 24 first, then electric hydaulic is pushed away
Bar 24 pushes bottom plate 23, and bottom plate 23 drives universal wheel 25 to move down, and universal wheel 25 jacks up pvc pipe device and is detached from ground later
Face, staff pushes pvc pipe expanding device to move later, after reaching place, shrinks electric drive hydraulic thruster 24, makes to prop up
Support leg 22 contacts ground, which does not need to reuse manual handling pvc pipe expanding device, time saving and energy saving, reduces work people
The labor intensity of member, has ensured the flaring efficiency of pvc pipe expanding device.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of highly-safe hard PVC pipe expanding device, including mounting rack (1), it is provided in mounting rack and is in by two
The Hough of the semi-circular gripping block composition of distribution symmetrical above and below, Hough are gripped by driving mechanisms control or are unclamped hard PVC
Pipe, is provided with oil cylinder on the mounting rack of Hough side, and pressure maintaining sizing room (2), the pressure maintaining are provided on the piston rod of oil cylinder
The side of sizing room (2) against Hough is opening-like, is provided with compressed air inlet port on the side wall of pressure maintaining sizing room (2),
The valve that can be opened and closed compressed air inlet port is provided at compressed air inlet port, setting is useful in pressure maintaining sizing room (2)
With the flaring die (3) being flared to hard PVC pipe pipe end, when oil cylinder (4) push flaring die (3) insertion by piston rod (5)
Clamped by Hough when fixed hard PVC pipe pipe end, pressure maintaining sizing room (2), which is just synchronized by oil cylinder (4), is pushed to its opening
Tight against on the outer wall of Hough, the sizing of pressure maintaining at this time room (2) and Hough just surround closed pressure maintaining sizing chamber jointly at end,
Be characterized in that: the two sidewalls of pressure maintaining sizing room (2) offer circular through hole, and the hole wall of circular through hole is connected with
Connecting rod (6), two connecting rods (6) are connected with link block (11), and the opposite one end of the link block (11) is opened
Equipped with groove (7), the cell wall of the groove (7) is opened up there are two symmetrical through-hole, and the hole wall of through-hole is fixedly connected with
Support plate (8), the side wall of the support plate (8) offers circular hole, and the hole wall of circular hole is connected with push rod (9), two institutes
It states the opposite one end of push rod (9) to be fixedly connected to pushing block (10), be offered in two connecting rods (6) symmetrical
Cavity, the cavity wall of the cavity are fixedly connected with bindiny mechanism (12), and the opposite side of two link blocks (11) is fixed
It is connected with semicircle backplate (13), two opposite one end of the connecting rod (6) are fixedly connected to threaded rod (14), two institutes
The equal screw thread of bar wall for stating threaded rod (14) is socketed with thread barrel (15), and the equal fixing sleeve of outer wall of two thread barrels (15) is connected to
The equal fixing sleeve of outer wall of rolling bearing (16), two rolling bearings (16) is connected to fixed plate (17), two fixed plates
(17) lower surface is fixedly connected with the upper surface of mounting rack (1), and the outer wall of two thread barrels (15) is fixedly attached
Have first gear (18), the upper surface of the mounting rack (1) is fixedly connected with dual-axle motor (19), the dual-axle motor (19)
Two output ends are fixedly connected to second gear (20), and two second gears (20) are nibbled with adjacent first gear (18)
It closes, the lower surface of the mounting rack (1) is fixedly connected with mobile mechanism (21).
2. the highly-safe hard PVC pipe expanding device of one kind according to claim 1, it is characterised in that: the movement
Mechanism (21) includes the supporting leg (22) being fixedly connected with mounting rack (1) lower surface four corners, four supporting legs (22)
Outer wall slidably connects bottom plate (23) jointly, and the upper surface of the bottom plate (23) is fixedly connected with electric drive hydraulic thruster (24), institute
The top for stating electric drive hydraulic thruster (24) is fixedly connected with the lower surface of mounting rack (1), the upper surface quadrangle of the bottom plate (23)
Place is fixedly connected to universal wheel (25).
3. the highly-safe hard PVC pipe expanding device of one kind according to claim 1, it is characterised in that: the connection
Mechanism (12) includes the piston (26) being flexibly connected with cavity cavity wall, and the two sidewalls of the piston (26) have been respectively fixedly connected with solid
Fixed pole (27) and spring (28), the spring (28) is fixedly connected far from the one end of piston (26) with the cavity wall of cavity, described solid
Fixed pole (27) passes through the side wall of cavity far from the one end of piston (26) and is inserted into through-hole.
4. the highly-safe hard PVC pipe expanding device of one kind according to claim 1, it is characterised in that: the oil cylinder
(4) lower surface is fixedly connected with cushion block (29), the fixed company in the lower surface of the cushion block (29) and the upper surface of mounting rack (1)
It connects.
5. the highly-safe hard PVC pipe expanding device of one kind according to claim 1, it is characterised in that: described in two
The equal fixing sleeve of bar wall of push rod (9) is connected to block.
6. the highly-safe hard PVC pipe expanding device of one kind according to claim 1, it is characterised in that: the connection
The lower surface of block (11) is fixedly connected with rubber pad.
7. the highly-safe hard PVC pipe expanding device of one kind according to claim 1, it is characterised in that: the installation
The lower surface of frame (1) is fixedly connected with battery (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811158798.7A CN109228290B (en) | 2018-09-30 | 2018-09-30 | High stereoplasm PVC pipe flaring device of security |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811158798.7A CN109228290B (en) | 2018-09-30 | 2018-09-30 | High stereoplasm PVC pipe flaring device of security |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109228290A true CN109228290A (en) | 2019-01-18 |
| CN109228290B CN109228290B (en) | 2021-02-02 |
Family
ID=65054275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811158798.7A Active CN109228290B (en) | 2018-09-30 | 2018-09-30 | High stereoplasm PVC pipe flaring device of security |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109228290B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114714609A (en) * | 2022-04-15 | 2022-07-08 | 安徽玉发塑业有限公司 | Flaring tool and flaring method for PVC-O pipe |
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| GB1258605A (en) * | 1968-10-03 | 1971-12-30 | ||
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| CN206124207U (en) * | 2016-11-11 | 2017-04-26 | 四川多联实业有限公司 | PVC tubular product pipe -expanding machine |
| CN107187012A (en) * | 2017-07-13 | 2017-09-22 | 江苏贝尔机械有限公司 | A kind of hard PVC pipe expanding device |
| CN207671093U (en) * | 2018-06-26 | 2018-07-31 | 湖南联智桥隧技术有限公司 | A kind of side slope offset monitoring device |
| CN207740307U (en) * | 2017-12-20 | 2018-08-17 | 温州市骏马标准件厂 | A kind of flat hole straight pin |
| CN207863505U (en) * | 2018-02-06 | 2018-09-14 | 南京埃塔斯智能科技有限公司 | The high underground construction protective device of safety coefficient that is a kind of easy to remove and adjusting |
| CN108590334A (en) * | 2018-02-05 | 2018-09-28 | 南京埃塔斯智能科技有限公司 | A kind of protective device convenient for adjusting and movement for gradient road construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1258605A (en) * | 1968-10-03 | 1971-12-30 | ||
| JPS546077A (en) * | 1977-06-15 | 1979-01-17 | Kubota Ltd | Fabrication of thermoplastic synthetic resin pipe |
| CN206124207U (en) * | 2016-11-11 | 2017-04-26 | 四川多联实业有限公司 | PVC tubular product pipe -expanding machine |
| CN107187012A (en) * | 2017-07-13 | 2017-09-22 | 江苏贝尔机械有限公司 | A kind of hard PVC pipe expanding device |
| CN207740307U (en) * | 2017-12-20 | 2018-08-17 | 温州市骏马标准件厂 | A kind of flat hole straight pin |
| CN108590334A (en) * | 2018-02-05 | 2018-09-28 | 南京埃塔斯智能科技有限公司 | A kind of protective device convenient for adjusting and movement for gradient road construction |
| CN207863505U (en) * | 2018-02-06 | 2018-09-14 | 南京埃塔斯智能科技有限公司 | The high underground construction protective device of safety coefficient that is a kind of easy to remove and adjusting |
| CN207671093U (en) * | 2018-06-26 | 2018-07-31 | 湖南联智桥隧技术有限公司 | A kind of side slope offset monitoring device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114714609A (en) * | 2022-04-15 | 2022-07-08 | 安徽玉发塑业有限公司 | Flaring tool and flaring method for PVC-O pipe |
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| Publication number | Publication date |
|---|---|
| CN109228290B (en) | 2021-02-02 |
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