CN113021214A - Four-wheel positioning fixture convenient to adjust for automobile - Google Patents
Four-wheel positioning fixture convenient to adjust for automobile Download PDFInfo
- Publication number
- CN113021214A CN113021214A CN202110259355.2A CN202110259355A CN113021214A CN 113021214 A CN113021214 A CN 113021214A CN 202110259355 A CN202110259355 A CN 202110259355A CN 113021214 A CN113021214 A CN 113021214A
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- fixedly connected
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- push rod
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- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 230000003028 elevating effect Effects 0.000 claims description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
一种汽车用便于调节的四轮定位夹具，包括底座，底座顶部设有支撑机构，支撑机构顶部设有升降机构，升降机构顶部设有调节机构，调节机构中部两端均设有夹持机构，升降机构中部设有定位机构，定位机构外围设有限位机构，升降机构包括第一电动推杆，第一电动推杆固定连接在底座顶部，第一电动推杆顶部输出端固定连接有活动轴，本发明所达到的有益效果是：通过支撑机构支撑装置，将将底座放置在地面上，便于装置的使用，不必用手提着装置，减轻使用时的负担，通过打开升降机构的第一电动推杆，带动第一电动推杆输出端固定连接的活动轴移动，活动轴顶部固定连接的固定盘移动到合适位置，用以适应不同高度的轮胎位置。
An easily adjustable four-wheel positioning fixture for automobiles, comprising a base, a support mechanism on the top of the base, a lift mechanism on the top of the support mechanism, an adjustment mechanism on the top of the lift mechanism, and a clamping mechanism at both ends of the middle of the adjustment mechanism, A positioning mechanism is arranged in the middle of the lifting mechanism, and a limiting mechanism is arranged on the periphery of the positioning mechanism. The lifting mechanism includes a first electric push rod, the first electric push rod is fixedly connected to the top of the base, and the output end of the top of the first electric push rod is fixedly connected with a movable shaft. The beneficial effects achieved by the present invention are: the base is placed on the ground through the support mechanism supporting the device, which facilitates the use of the device, does not need to be held by hand, reduces the burden during use, and opens the first electric push rod of the lifting mechanism. , to drive the movable shaft fixedly connected to the output end of the first electric push rod to move, and the fixed plate fixedly connected to the top of the movable shaft to move to an appropriate position to adapt to the tire positions of different heights.
Description
Technical Field
The invention relates to a positioning device, in particular to a four-wheel positioning fixture convenient to adjust for an automobile, and belongs to the technical field of automobile equipment.
Background
With the development of social economy, the quantity of automobile ownership of people is rapidly increased, and the automobile is walked into thousands of households, but in the long-term use process of the automobile, the four wheels of the automobile can generate deviation, and after the four wheels of the automobile generate deviation, the use of the automobile can be influenced, the service life of tires can be influenced, and therefore danger is caused.
But current four-wheel positioning fixture uses generally manually to press from both sides tight spacing to the car, and is more hard, can't press from both sides the fastening completely with the four-wheel moreover, restriction fixed column positioning fixture, because positioning fixture itself is heavier, during the operative installations, can be more hard, influence workman's work efficiency, lack sufficient clamping structure moreover, in case one of them clamping structure goes wrong, can't make anchor clamps fix on the tire more stably, inaccurate problem when leading to adjusting.
Disclosure of Invention
The invention aims to solve the problems that the existing four-wheel positioning clamp is generally used for manually clamping and limiting an automobile, is labor-consuming, cannot completely clamp and fix four wheels and limits a fixed column positioning clamp, and is heavy, so that when a device is used, the labor is consumed, the working efficiency of workers is influenced, an enough clamping structure is lacked, and once one clamping structure has a problem, the clamp cannot be stably fixed on a tire, and the adjustment is inaccurate, so that the four-wheel positioning clamp convenient for adjustment for the automobile is provided.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a four-wheel positioning fixture convenient to adjust for car, includes the base, the base top is equipped with supporting mechanism, the supporting mechanism top is equipped with elevating system, the elevating system top is equipped with adjustment mechanism, adjustment mechanism middle part both ends all are equipped with fixture, the elevating system middle part is equipped with positioning mechanism, the positioning mechanism periphery is equipped with stop gear, elevating system includes first electric putter, first electric putter fixed connection is at the base top, first electric putter top output end fixedly connected with loose axle, first electric putter one end is kept away from to the loose axle is through bolt fixedly connected with fixed disk, the fixed disk both ends are seted up flutedly.
As a preferred technical scheme, the supporting mechanism comprises a first movable hinge, the first movable hinge is fixedly connected to the top of the base, the base is movably connected with a supporting shaft through the first movable hinge, one end, far away from the first movable hinge, of the supporting shaft is movably connected with a second movable hinge, the supporting shaft is movably connected with a fixing plate through the second movable hinge, the fixing plate is fixedly connected with a level gauge, the number of the first movable hinges is four, and the four first movable hinges are respectively and uniformly and fixedly connected to four corners of the top of the base.
According to a preferred technical scheme, the adjusting mechanism comprises a protective box, the protective box is fixedly connected to the top of a fixed disc, a stepping motor is fixedly connected inside the protective box, the output end of the stepping motor is fixedly connected with a threaded shaft, the threaded shaft penetrates through the fixed disc, a movable block is in threaded connection with the threaded shaft, a clamping block is fixedly connected onto the movable block, bidirectional threads are formed in the threaded shaft, two movable blocks are in threaded connection with the threaded shaft symmetrically, and two bolts are in threaded connection with the two movable blocks respectively.
As a preferred technical scheme of the invention, the clamping mechanism comprises a second electric push rod, the second electric push rod is fixedly connected to the fixed disk, an output rod is fixedly connected to an output end of the second electric push rod, one end of the output rod, which is far away from the second electric push rod, is movably connected with a first central shaft, the output rod is movably connected with a movable clamping column through the first central shaft, one end of the movable clamping column, which is far away from the first central shaft, is movably connected with a second central shaft, a first spring is fixedly connected to the second central shaft, and one end of the first spring, which is far away from the second central shaft, is fixedly connected with the first central shaft.
According to a preferred technical scheme, the positioning mechanism comprises a positioning motor, the positioning motor is fixedly connected to a fixed disc, a movable chuck is fixedly connected to the output end of the positioning motor, clamping teeth are formed in the movable chuck, racks are connected to the clamping teeth in a meshed mode, the number of the racks is four, the four racks are evenly meshed and connected to the inside of the movable chuck, and a fixing rod is fixedly connected to one end, far away from the movable chuck, of each rack.
According to a preferred technical scheme, the limiting mechanism comprises a fixed rod, a sliding groove is formed in the fixed rod, a sliding rod is fixedly connected inside the sliding groove, a second spring is sleeved on the sliding rod, a limiting block is connected onto the sliding rod in a sliding mode, and a bolt is connected onto the limiting block in a threaded mode.
As a preferred technical scheme of the invention, four corners of the bottom of the base are in threaded connection with movable support rods, the bottom of each movable support rod at the bottom of the base is made of rubber, and the movable shaft penetrates through the fixed plate.
As a preferred technical scheme of the present invention, the number of the second electric push rods is two, the two second electric push rods are respectively and symmetrically fixedly connected to two ends of the fixed disk, the output rod is provided with a through groove adapted to the movable clamping column, the first central shaft penetrates through the output rod, and the second central shaft penetrates through the movable clamping column.
The invention has the following beneficial effects:
1. the base is placed on the ground through the supporting device of the supporting mechanism, so that the device is convenient to use, the device does not need to be carried by hands, and the burden during use is reduced.
2. Through opening elevating system's first electric putter, drive the loose axle of first electric putter output fixed connection and remove, the fixed disk of loose axle top fixed connection removes suitable position for adapt to the tire position of co-altitude not.
3. Through the positioning motor who opens positioning mechanism, it is rotatory to drive positioning motor output fixed connection's chuck, and latch rotation on the chuck drives stop gear's dead lever and removes for the dead lever adapts to the tire of different diameters, prevents that fixture is not hard up the back, influences the use of device.
4. Open and stimulate the stopper, with the adjusting device joint between the stopper, promote the stopper through the second spring and remove, restrain adjusting device's position, the adjusting device's of being convenient for dismantlement and installation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic front view of the adjustment mechanism of the present invention;
FIG. 3 is a schematic cross-sectional view of the positioning mechanism of the present invention;
FIG. 4 is a schematic diagram of the structure at point A of the present invention;
FIG. 5 is a schematic structural view of a spacing mechanism of the present invention;
fig. 6 is a schematic cross-sectional structure of the base of the present invention.
In the figure: 1. a base; 2. a support mechanism; 21. a first living hinge; 22. a support shaft; 23. a second living hinge; 24. a fixing plate; 25. a level gauge; 3. a lifting mechanism; 31. a first electric push rod; 32. a movable shaft; 33. fixing the disc; 4. an adjustment mechanism; 41. a protective box; 42. a stepping motor; 43. a threaded shaft; 44. a movable block; 45. a clamping block; 5. a clamping mechanism; 51. a second electric push rod; 52. an output rod; 53. a first central shaft; 54. a movable clamping column; 55. a second central shaft; 56. a first spring; 6. a positioning mechanism; 61. positioning a motor; 62. a chuck; 63. clamping teeth; 64. a rack; 7. a limiting mechanism; 71. fixing the rod; 72. a chute; 73. a slide bar; 74. a second spring; 75. and a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): as shown in fig. 1-6, the invention relates to an adjustable four-wheel positioning fixture for automobiles, which comprises a base 1, a supporting mechanism 2 is arranged on the top of the base 1, the use of the device is convenient, the device is not required to be carried by hands, the burden during use is reduced, a lifting mechanism 3 is arranged on the top of the supporting mechanism 2, an adjusting mechanism 4 is arranged on the top of the lifting mechanism 3, clamping mechanisms 5 are arranged at both ends of the middle part of the adjusting mechanism 4, a positioning mechanism 6 is arranged in the middle part of the lifting mechanism 3, a limiting mechanism 7 is arranged at the periphery of the positioning mechanism 6, the lifting mechanism 3 comprises a first electric push rod 31, the first electric push rod 31 is fixedly connected to the top of the base 1, a movable shaft 32 is fixedly connected to the output end of the top of the first electric push rod 31, one end of the movable shaft 32 far away from the first electric push rod 31 is, the fixing disc 33 is adaptive to the position of the tire, so that the device is prevented from being clamped by hands when being used, and time and labor are wasted.
Wherein, the supporting mechanism 2 comprises a first movable hinge 21, the first movable hinge 21 is fixedly connected with the top of the base 1, the base 1 is movably connected with a supporting shaft 22 through the first movable hinge 21, one end of the supporting shaft 22 far away from the first movable hinge 21 is movably connected with a second movable hinge 23, the supporting shaft 22 is movably connected with a fixed plate 24 through the second movable hinge 23, a level gauge 25 is fixedly connected on the fixed plate 24, the level meter 25 fixedly connected with the fixed plate 24 is used for judging whether the device is level or not, the adjustment of the device is convenient, the problem during the adjustment is prevented, the adjustment structure is influenced, the number of the first movable hinges 21 is four, the four first movable hinges 21 are respectively and uniformly and fixedly connected with four corners of the top of the base 1, the four supporting shafts 22 are supported on the top of the base 1, so that the fixing plate 24 can be fixed conveniently, the device is prevented from being damaged by pressure, and the supporting performance of the device is improved.
Wherein, adjustment mechanism 4 includes protective housing 41, protective housing 41 fixed connection is at fixed disk 33 top, the inside fixedly connected with step motor 42 of protective housing 41, step motor 42 output end fixedly connected with screw thread axle 43, screw thread axle 43 has passed fixed disk 33, threaded connection has movable block 44 on the screw thread axle 43, it is rotatory to drive screw thread axle 43 through step motor 42, fixedly connected with fixture block 45 on the movable block 44, be convenient for movable block 44 to remove, it removes to drive fixture block 45, the chucking is on the tire, two-way screw has been seted up on screw thread axle 43, symmetrical threaded connection has two movable blocks 44 on the screw thread axle 43, there are two bolts of threaded connection respectively on two movable blocks 44, bolt through threaded connection on the movable block 44, block the device on tire wheel hub.
Wherein, fixture 5 includes second electric putter 51, second electric putter 51 fixed connection is on fixed disk 33, second electric putter 51 output fixedly connected with output rod 52, output rod 52 keeps away from second electric putter 51 one end swing joint and has first center pin 53, output rod 52 has movable joint post 54 through first center pin 53 swing joint, first center pin 53 one end swing joint has second center pin 55 is kept away from to movable joint post 54, fixedly connected with first spring 56 on the second center pin 55, second center pin 55 one end fixedly connected with first center pin 53 is kept away from to first spring 56, drive output rod 52 through second electric putter 51 and remove, adjust according to the diameter of tire, rotatory movable joint post 54, utilize first spring 56 candle movable joint post 54, with the device joint on the tire.
Wherein, positioning mechanism 6 includes positioning motor 61, positioning motor 61 fixed connection is at fixed disk 33, positioning motor 61 output end fixedly connected with activity chuck 62, latch 63 has been seted up on the activity chuck 62, the meshing is connected with rack 64 on the latch 63, rack 64 quantity is four, four rack 64 even meshing connection are inside activity chuck 62, movable chuck 62 one end fixedly connected with dead lever 71 is kept away from to rack 64, it removes to drive activity chuck 62 through positioning motor 61, make rack 64 remove along activity chuck 62, make dead lever 71 restriction on the tire, prevent that fixture 5 is not hard up the back, influence the use of device.
The limiting mechanism 7 comprises a fixing rod 71, a sliding groove 72 is formed in the fixing rod 71, a sliding rod 73 is fixedly connected to the inside of the sliding groove 72, a second spring 74 is sleeved on the sliding rod 73, a limiting block 75 is connected to the sliding rod 73 in a sliding mode, a bolt is connected to the limiting block 75 in a threaded mode, the limiting block 75 is pushed to move through the second spring 74, the position of the adjusting device is limited, and the device is prevented from moving.
Wherein, the equal threaded connection in base 1 bottom four corners has movable branch, and the movable branch bottom of base 1 bottom is made for rubber, and loose axle 32 has passed fixed plate 24, adjusts the level of base 1 through movable branch, reduces the vibrations of device through rubber.
Wherein, the quantity of second electric putter 51 is two, and two second electric putter 51 symmetry fixed connection respectively are at fixed disk 33 both ends, offer the logical groove that suits with activity joint post 54 on the output pole 52, and output pole 52 has been passed to first center pin 53, and second center pin 55 has passed and has had activity joint post 54, the joint of the device of being convenient for.
Specifically, when the invention is used, firstly, the base 1 is placed on the ground, the movable support rod connected with the bottom of the base 1 through the thread is rotated, the level gauge fixedly connected with the fixed plate 24 is used for judging that the base 1 is kept horizontal, the use of the device is convenient, then the first electric push rod 31 of the lifting mechanism 3 is opened to drive the movable shaft 32 fixedly connected with the output end of the first electric push rod 31 to move, the fixed plate 33 fixedly connected with the top of the movable shaft 32 moves to a proper position to adapt to the positions of tires with different heights, then the stepping motor 42 of the adjusting mechanism 4 is opened to drive the threaded shaft 43 fixedly connected with the output end of the stepping motor 42 to rotate, the movable block 44 connected with the thread on the threaded shaft 43 is driven to move along the threaded shaft 43, the clamping block 45 fixedly connected with the movable block 44 is used for clamping on the wheel hub on the tire, and then the second electric push, drive second electric putter 51 output fixed connection's output pole 52 and remove, rotate output pole 52, utilize first spring 56 pulling activity joint post 54, make activity joint post 54 joint on the tire, be convenient for the spacing of device, prevent to remove, open positioning mechanism 6's positioning motor 61 again, it is rotatory to drive positioning motor 61 output fixed connection's chuck 62, chuck 62 is last latch 64 rotatory, it removes to drive stop gear 7's dead lever 71, make dead lever 71 adapt to the tire of different diameters, stimulate stopper 75 at last, with the adjusting device joint between stopper 75, promote stopper 75 through second spring 74 and remove, limit adjusting device's position, be convenient for adjusting device's dismantlement and installation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The four-wheel positioning fixture convenient to adjust for the automobile is characterized by comprising a base (1), wherein a supporting mechanism (2) is arranged at the top of the base (1), an elevating mechanism (3) is arranged at the top of the supporting mechanism (2), an adjusting mechanism (4) is arranged at the top of the elevating mechanism (3), clamping mechanisms (5) are arranged at two ends of the middle part of the adjusting mechanism (4), a positioning mechanism (6) is arranged at the middle part of the elevating mechanism (3), a limiting mechanism (7) is arranged at the periphery of the positioning mechanism (6), the elevating mechanism (3) comprises a first electric push rod (31), the first electric push rod (31) is fixedly connected to the top of the base (1), a movable shaft (32) is fixedly connected to the output end of the top of the first electric push rod (31), one end, away from the first electric push rod (31), of the movable shaft (32) is fixedly connected with a fixed, grooves are formed in two ends of the fixed disc (33).
2. The four-wheel positioning fixture convenient to adjust for automobile of claim 1, characterized in that, supporting mechanism (2) includes first living hinge (21), first living hinge (21) fixed connection is at base (1) top, base (1) has back shaft (22) through first living hinge (21) swing joint, back shaft (22) keep away from first living hinge (21) one end swing joint has second living hinge (23), back shaft (22) have fixed plate (24) through second living hinge (23) swing joint, fixed plate (24) are gone up fixed connection has spirit level (25), first living hinge (21) quantity is four, four first living hinge (21) respectively even fixed connection is in base (1) top four corners.
3. The four-wheel positioning fixture convenient to adjust for automobile of claim 1, characterized in that adjustment mechanism (4) includes guard box (41), guard box (41) fixed connection is at fixed disk (33) top, inside fixedly connected with step motor (42) of guard box (41), step motor (42) output end fixedly connected with screw shaft (43), screw shaft (43) have passed fixed disk (33), threaded connection has movable block (44) on screw shaft (43), fixedly connected with fixture block (45) on movable block (44), two-way screw has been seted up on screw shaft (43), symmetrical threaded connection has two movable block (44) on screw shaft (43), two threaded connection has two bolts respectively on movable block (44).
4. The four-wheel positioning fixture convenient for adjustment for automobiles, as claimed in claim 1, the clamping mechanism (5) comprises a second electric push rod (51), the second electric push rod (51) is fixedly connected to the fixed disc (33), an output rod (52) is fixedly connected with the output end of the second electric push rod (51), one end of the output rod (52) far away from the second electric push rod (51) is movably connected with a first central shaft (53), the output rod (52) is movably connected with a movable clamping column (54) through a first central shaft (53), one end of the movable clamping column (54) far away from the first central shaft (53) is movably connected with a second central shaft (55), and a first spring (56) is fixedly connected to the second central shaft (55), and a first central shaft (53) is fixedly connected to one end, far away from the second central shaft (55), of the first spring (56).
5. The four-wheel positioning fixture convenient to adjust for automobile of claim 1, characterized in that positioning mechanism (6) includes positioning motor (61), positioning motor (61) fixed connection is in fixed disk (33), positioning motor (61) output end fixed connection has movable chuck (62), latch (63) have been seted up on movable chuck (62), the meshing is connected with rack (64) on latch (63), rack (64) quantity is four, four rack (64) even meshing connection is inside movable chuck (62), rack (64) keep away from movable chuck (62) one end fixedly connected with dead lever (71).
6. The four-wheel positioning fixture convenient to adjust for automobile of claim 1, characterized in that the limiting mechanism (7) comprises a fixing rod (71), a sliding groove (72) is formed in the fixing rod (71), a sliding rod (73) is fixedly connected in the sliding groove (72), a second spring (74) is sleeved on the sliding rod (73), a limiting block (75) is connected on the sliding rod (73) in a sliding manner, and a bolt is connected on the limiting block (75) in a threaded manner.
7. The four-wheel positioning fixture convenient to adjust for the automobile of claim 1, characterized in that four corners of the bottom of the base (1) are connected with movable support rods in a threaded manner, the bottoms of the movable support rods at the bottom of the base (1) are made of rubber, and the movable shaft (32) penetrates through the fixing plate (24).
8. The four-wheel positioning fixture convenient to adjust for automobile of claim 4, characterized in that, the number of the second electric push rods (51) is two, two second electric push rods (51) are respectively and symmetrically and fixedly connected to two ends of the fixed disc (33), a through groove adapted to the movable clamping column (54) is opened on the output rod (52), the output rod (52) passes through the first central shaft (53), and the movable clamping column (54) passes through the second central shaft (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110259355.2A CN113021214A (en) | 2021-03-10 | 2021-03-10 | Four-wheel positioning fixture convenient to adjust for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110259355.2A CN113021214A (en) | 2021-03-10 | 2021-03-10 | Four-wheel positioning fixture convenient to adjust for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113021214A true CN113021214A (en) | 2021-06-25 |
Family
ID=76469011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110259355.2A Withdrawn CN113021214A (en) | 2021-03-10 | 2021-03-10 | Four-wheel positioning fixture convenient to adjust for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113021214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114055796A (en) * | 2021-10-14 | 2022-02-18 | 怀化力搏塑胶科技有限公司 | Rapid butt joint fixing device for PE water supply pipe and using method |
-
2021
- 2021-03-10 CN CN202110259355.2A patent/CN113021214A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114055796A (en) * | 2021-10-14 | 2022-02-18 | 怀化力搏塑胶科技有限公司 | Rapid butt joint fixing device for PE water supply pipe and using method |
| CN114055796B (en) * | 2021-10-14 | 2024-02-09 | 怀化力搏塑胶科技有限公司 | Quick butt joint fixing device for PE water supply pipe and use method |
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Application publication date: 20210625 |