CN110102649B - Radial binding off structure and pistol type binding off pincers suitable for pipe material - Google Patents
Radial binding off structure and pistol type binding off pincers suitable for pipe material Download PDFInfo
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- CN110102649B CN110102649B CN201910490622.XA CN201910490622A CN110102649B CN 110102649 B CN110102649 B CN 110102649B CN 201910490622 A CN201910490622 A CN 201910490622A CN 110102649 B CN110102649 B CN 110102649B
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- clamp arm
- clamp
- radial
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- 239000000463 material Substances 0.000 title claims abstract description 17
- 210000000080 chela (arthropods) Anatomy 0.000 title description 2
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000008859 change Effects 0.000 claims abstract description 11
- 238000002788 crimping Methods 0.000 claims description 5
- 230000010354 integration Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 2
- 230000009977 dual effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a radial closing-in structure suitable for pipe materials, which comprises the following components: a clamp arm taking the pivot as a rotation center, wherein a jaw extends out of the clamp arm; the clamp arm rotates around the pivot to enable the clamp jaw to clamp the pipe material and enable the pipe material to radially deform; the stress end of the clamp arm, the first lever, the second lever and the connecting rod are sequentially connected in a hinging manner at the adjacent ends; the rotation fulcrum of the first lever and the pivot keep a relatively fixed position relation; the second lever rotates around the rotating fulcrum and toggles the first lever; the first lever rotates around a rotating fulcrum and dials the clamp arm; an inner included angle at the hinge joint is formed between the second lever and the connecting rod; the rotating pivot of the second lever and the tail end of the connecting rod are matched on the same screw rod to realize the change of the inner included angle. The structure design is reasonable, the transmission relation is clear, the transmission effect is ideal, and the structure is small in size and convenient to integrate; the transmission is labor-saving, and a high-power motor is not needed to be matched.
Description
Technical Field
The invention relates to the field of electric tools, in particular to a radial closing-in structure suitable for a pipe material and a pistol-type closing-in pliers.
Background
It is well known that a great deal of tubing products are involved in our daily lives. Such as a water line in a toilet, a return line in an air conditioner, a pressure line in a hydraulic device, etc. A large number of occurrences are around us, and are closely related to our lives. These tube pieces have specific material requirements either because of work requirements, or usage habits, etc. For example, pressure pipes in hydraulic systems are mostly high-density rubber pipes because of the line travel restrictions; the return pipe of the air conditioner adopts a copper pipe because of the need of good heat conduction effect; the life water pipe is mainly an iron pipe and a PP pipe, and some life water pipes adopt copper water pipes to increase the copper ion content in water.
Taking a copper water pipe as an example, the pipeline needs to be butted in the laying or planning process. The pipe materials in the same pipeline have the same pipe diameter, and the sealing butt joint at the lower joint of the same pipe diameter becomes the key of pipeline laying. In the prior art, the butt joint of pipe orifices mostly adopts metric joints, and meets the qualification standard through sealing, tensioning and the like. But the preparation of the joint requires greater costs.
Therefore, a sleeve member for sealing and tightening the sleeve and the outside of the joint is developed, and the fitting is low in preparation cost and convenient to install. Only one pipe orifice is expanded in advance, the butt joint pipe orifice is arranged in the expanded pipe orifice, the joint is tightened, the sleeve member is arranged at the joint, and the butt joint can be realized by matching with sealing materials and the like. There are a large number of flaring pliers on the current market, so that the 'pipe orifice expansion' is more convenient. However, the copper pipe is softer, so that the copper pipe is deformed due to poor force and direction grasping during closing. In the current installation process, most manual closing-up is not only low in force assembly quality, but also low in installation efficiency. Therefore, a hand tool which is convenient to carry and can be quickly and effectively closed is urgent.
Disclosure of Invention
The technical scheme of the invention is as follows: a radial necking structure suitable for tubing, comprising: a hook-shaped clamp arm, a group of levers and a link member. The front end of the clamp arm extends out of a jaw, and the jaw is arc-shaped and can be attached to the shape of the closed pipe material. The rear end of the clamp arm is a stress end, and a pivot is arranged between the clamp jaw and the stress end. When the clamp arm rotates by taking the pivot as a rotation center, the jaw can displace clockwise or anticlockwise, so that the clamping and loosening states are achieved.
The rotation of the clamp arm is realized by a lever and a connecting rod which are mutually hinged, and the specific structure is as follows:
The stress end of the clamp arm, the first lever, the second lever and the connecting rod are sequentially connected in a hinged manner at adjacent ends, and the positions of the clamp arm and the first lever are relatively fixed, namely, the pivot of the clamp arm and the rotating pivot of the first lever are relatively fixed.
Preferably, the radial pinching structure for tubing further comprises a structural plate for fixing the distance between the pivot of the jawarms and the pivot of the first lever.
To achieve the articulated rotation of the first lever and the jawarms, this distance must be less than the sum of the lengths of the loaded end a of the jawarms and the front end b of the first lever, while the movable dimension must be reserved at the junction of the two.
Preferably, a guide groove extending along the direction of the force arm is formed in the force-bearing end of the clamp arm, and the hinge shaft at the front end of the first lever is matched in the guide groove. When the first lever toggles the clamp arm to rotate, the front end hinge shaft of the first lever can slide in the guide groove so as to meet the requirement of dimensional change.
One end of the second lever is hinged with the first lever, and the other end of the second lever is hinged with the connecting rod. When the second lever rotates around the rotation pivot, the second lever toggles the first lever to rotate. The rotation of the second lever corresponds to the connecting rod, and an inner included angle at the hinge joint is formed between the second lever and the connecting rod. When the distance between the rotating pivot of the second lever and the tail end of the connecting rod is changed, the second lever rotates around the rotating pivot, so that power is sequentially transmitted to the first lever and the clamp arm, and finally the clamp arm is driven to rotate around the pivot.
Preferably, the second lever is a bent lever, and the pivot point thereof is located at a bent portion, the bent portion tending to the inside. In order to optimize the structure and achieve the purpose of saving effort, the first lever is an equidistant lever, namely the force arms on two sides are the same; the force arm of the second lever is larger than the output force arm of the second lever, so that the larger output of the output end of the second lever can be obtained through less rotation of the force end of the second lever.
Thus, based on the transmission principle described above.
Preferably, the jawarms have the same direction of rotation as the second lever. Since both the hinging sequence and the lever shape affect the transmission purpose, the transmission effect is finally determined by the rotation states of the clamp arm and the second lever.
Preferably, the opening and closing state of the inner included angle is the same as the opening and closing state change of the jaw. Based on the transmission relation, when the second lever and the clamp arm have synchronous rotation states, the opening and closing states of the clamp jaws are linked with the inner included angles, and the inner included angles are gradually increased, so that the clamp jaws are gradually opened, and vice versa.
Then, the reason for the change of the internal angle between the second lever and the link is: the rotating pivot of the second lever and the tail end of the connecting rod are matched on the same screw rod.
Preferably, the rotation pivot of the second lever and the tail end of the connecting rod are hinged on different thread sleeves; the two thread sleeves are matched on the screw rod, and the spiral directions of the two thread sleeves are opposite. Therefore, when the screw rod rotates, the two screw sleeves move reversely in opposite directions due to different screw directions, so that the inner included angle is changed.
Based on the technical key points described above,
Preferably, the symmetrical structure is composed of two clamp arms, two first levers, two second levers and two connecting rods. The two clamp arms correspond to each other, the two clamp jaws realize closed clamping, and the two second levers and the two connecting rods correspond to each other and can form synchronous transmission.
Preferably, two first levers are hinged to the first threaded sleeve and two second levers are hinged to the second threaded sleeve. Thus, the rear ends of the two connecting rods and the two second levers form a similar parallelogram hinge structure, and the related change of one diagonal line can be realized through the change of the other diagonal line.
Preferably, the threaded spindle is located on the symmetry axis.
The pistol-type crimping pliers suitable for the radial crimping structure integration of the pipe materials comprise a pistol-type shell and a motor. The motor, the clamp arm, the first lever, the second lever, the connecting rod, the screw rod, the threaded sleeve, the structural plate and the like are all arranged in the pistol type shell.
Wherein, the screw rod is in transmission connection with the rotating shaft of the motor. Therefore, the motor provides a rotating force, the screw rod rotates, and after the connecting rod, the second lever and the first lever are transmitted, the clamp arm obtains a driving force, so that the jaw can realize the clamping closing action.
The pistol type shell comprises a holding part and a starting switch. The starting switch gives a starting signal, and the motor generates corresponding output by the control element.
Preferably, the jaws are located outside the pistol-type housing.
The invention has the advantages that:
1. The structure design is reasonable, the transmission relation is clear, the transmission effect is ideal, and the structure is small in size and convenient to integrate; the transmission is labor-saving, and a high-power motor is not needed to be matched.
2. The maintenance and the repair are convenient, and the disassembly is convenient and the repair can be timely carried out due to the use of the transmission mode of the lever hinge joint.
3. The structure is light, and the final pistol-shaped folding pliers are mostly the weight of the motor due to the small transmission structure, so the pistol-shaped folding pliers are convenient to hold, use and carry.
Drawings
The invention is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a schematic diagram of a radial necking configuration suitable for tubing;
FIG. 2 is a view showing a maximum opening state structure of a radial necking structure suitable for a pipe material;
FIG. 3 is a view showing a closing state of a radial closing structure suitable for a pipe material;
Fig. 4 is a schematic view of a pistol-style crimping pliers;
Wherein: 1. a jaw; 11. a pivot; 2. a clamp arm; 21. a guide groove; 3. a first lever; 31. a first lever rotation fulcrum; 4. a second lever; 41. a second lever rotation fulcrum; 5. a connecting rod; 51. a first lever rotation fulcrum; 6. a structural panel; 7. a screw rod; 8. a pistol-type housing; 9. and a motor.
Detailed Description
Example 1:
As shown in figure 1, a radial closing structure suitable for pipe materials is provided, the front end of a clamp arm is a clamp jaw 1, and the clamp jaw 1 is semicircular. The rear end of the clamp arm 2 is a stress end, a guide groove 21 extending along the direction of the force arm is formed in the stress end, and the hinge shaft at the front end of the first lever 3 is matched in the guide groove 21. A pivot 11 is arranged between the jaw 1 and the force-bearing end 2, and when the clamp arm 2 rotates by taking the pivot 11 as a rotation center, the jaw 1 can displace clockwise or anticlockwise, so that the clamping and loosening states are achieved.
The first lever 3 is an equidistant arm of force, and the arms of force at the two ends are almost equal. The front hinge shaft of the first lever 3 is fitted in the guide groove 21, and the rear hinge end of the first lever 3 is hinged to the second lever 4.
The second lever 4 is a bent lever, and its pivot point is located at a bent portion, which tends to the inside. As shown in fig. 1, the angle at which the second lever 4 is bent is 109 °. Meanwhile, in order to optimize the structure and achieve the purpose of saving effort, the stress arm of the second lever 4 is larger than the output arm of the second lever, so that the larger output of the output end of the second lever 4 can be obtained through less rotation of the stress end of the second lever 4. The rear end hinge shaft of the second lever 4 is hinged to the link 5, so that the hinge of the second lever 4 and the link 5 forms an inner angle α.
Based on the lever hinge mechanism, a plurality of hinge points and lever fulcrums are involved, and different output effects are determined by different hinge modes and fulcrum fixing modes.
In this embodiment, the positions of the jawarm 2 and the first lever 3 are relatively fixed, i.e., the pivot 11 of the jawarm 2 and the first lever pivot point 31 are relatively fixed. A structural plate 6 is provided, the structural plate 6 serving to fix the distance between the pivot 11 of the jawarms and the first lever pivot 31.
The internal angle between the second lever 4 and the connecting rod 5 is determined by the change of the distance between the second lever rotation pivot 41 and the connecting rod tail end hinging point 51, the second lever 4 rotates around the rotation pivot, so that the power is sequentially transmitted to the first lever 3 and the clamp arm 2, and finally the clamp arm 2 is driven to rotate around the pivot 11.
Based on the transmission principle, the clamping or loosening action of the foundation can be realized.
Example 2:
According to the common mechanical knowledge, the jaw 1 can be divided into a single-sided type, a double-sided symmetrical type and a double-sided asymmetrical type. The bilateral symmetry type can be specifically divided into a single fulcrum and a double fulcrum. Theoretically, the above-described lattice-shaped pliers can be realized entirely as long as the transmission principle in embodiment 1 is based. However, conditions such as structural optimization, attractive appearance, use effect and the like need to be considered, and therefore, a double-fulcrum double-side symmetrical structure is selected in the embodiment.
The specific structure is as follows:
the utility model provides a radial binding off structure suitable for pipe material, includes two tong arms 2, two first levers 3, two second levers 4, the symmetrical structure that two connecting rods 5 constitute. Two pliers arms 2 correspond to each other, two pliers jaws 1 realize closed clamping, and two second levers 4 and two connecting rods 5 correspond to each other to form synchronous transmission.
The two-pivot symmetrical structure is described with reference to fig. 1, the distance between the first lever 3 and the jaw arm 2 must be smaller than the sum of the lengths of the force-bearing end a of the jaw arm and the front end b of the first lever, and a movable size, namely, a guide groove 21, needs to be reserved at the joint of the two.
When the first lever 3 rotates the clamp arm 2, the front end hinge shaft of the first lever 3 slides in the guide groove 21 to meet the requirement of size change.
One end of the second lever 4 is hinged with the first lever 3, and the other end is hinged with the connecting rod 5. When the second lever 4 rotates around the rotation pivot, the second lever 4 toggles the first lever 3 to rotate. The rotation of the second lever 4 corresponds to the rotation of the connecting rod 5.
The second levers 4 on both sides are synchronized and the links 5 on both sides are synchronized based on the symmetrical structure. In this embodiment, the two second lever pivot points 41 are hinged to the same screw sleeve, and the two link end hinge points 51 are hinged to the other screw sleeve. Thus, the rear ends of the two links 5 and the two second levers 4 form a similar parallelogram hinge structure, and a related change of the other diagonal can be realized by changing one diagonal.
Example 3:
Based on the two examples, the best fit mode can be obviously obtained:
the jawarms 2 have the same direction of rotation as the second lever 3. Since both the hinging sequence and the lever shape have an influence on the transmission purpose, the transmission effect is finally determined by the rotation states of the jawarms 2 and the second lever 3.
The opening and closing state of the inner included angle alpha is the same as the opening and closing state change of the jaw 1. Also based on the consideration of transmission relation, when the second lever 4 and the clamp arm 2 have synchronous rotation states, the opening and closing states of the clamp jaws 1 are linked with the inner included angle alpha, and the inner included angle alpha is gradually larger, so that the clamp jaws are gradually opened, and vice versa.
Then, the reason why the internal angle α between the second lever 4 and the link 5 varies is: the second lever pivot 41 and the link end hinge point 51 are realized by being matched on the same screw rod 7, and the screw rod 7 is positioned on the symmetrical axis surface of the integral structure.
The second lever rotation pivot 41 and the connecting rod tail end hinging point 51 are hinged on different threaded sleeves; the two thread sleeves are matched on the screw rod 7, and the spiral directions of the two thread sleeves are opposite. Therefore, when the screw rod 7 rotates, the two screw sleeves move in opposite directions due to different screw directions, so that the internal included angle alpha changes. In this embodiment, as shown in fig. 2, the maximum value of the internal angle α is represented by the angle between the connecting rod 5 and the screw rod 7, and when the minimum value of the angle is 7.13 °, the opening and closing of the jaw 1 reaches the maximum. Alpha
Example 4:
The pistol-type crimping pliers suitable for the radial necking structure integration of the pipe materials comprise a pistol-type shell 8 and a motor 9. The motor 9, the clamp arm 2, the first lever 3, the second lever 4, the connecting rod 5, the screw rod 7, the threaded sleeve, the structural plate 6 and the like are all arranged in the pistol type shell 8, and the clamp jaw 1 is positioned outside the pistol type shell 8.
Wherein, the screw rod 7 is in transmission connection with the rotating shaft of the motor 9. Therefore, the motor 9 provides a rotating force, the screw rod 7 rotates, and after the connecting rod 5, the second lever 4 and the first lever 3 are transmitted, the clamp arm 2 obtains a driving force, so that the jaw 1 can realize the clamping closing action.
The pistol-shaped housing 8 includes a grip portion and a start switch. The starting switch gives a starting signal, and the motor generates corresponding output by the control element.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations which can be accomplished by persons skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the appended claims.
Claims (8)
1. A radial necking structure suitable for tubing, comprising: a clamp arm taking the pivot as a rotation center, wherein a jaw extends out of the clamp arm; the clamp arm rotates around the pivot to enable the clamp jaw to clamp the pipe material and enable the pipe material to radially deform; the method is characterized in that: the rear end of the clamp arm is a stress end, and the pivot is arranged between the jaw and the stress end;
the stress end of the clamp arm, the first lever, the second lever and the connecting rod are sequentially connected in a manner of hinging adjacent ends; the rotating fulcrum of the first lever and the pivot keep a relatively fixed position relation;
The radial closing-in structure further comprises a structural plate, and the distance between the pivot and the rotating fulcrum of the first lever is fixed through the structural plate;
The second lever rotates around a rotating fulcrum and toggles the first lever; the first lever rotates around a rotating fulcrum and toggles the clamp arm;
An inner included angle at the hinge joint is formed between the second lever and the connecting rod; the rotating fulcrum of the second lever and the tail end of the connecting rod are matched on the same screw rod to realize the change of the inner included angle;
the clamp arm and the second lever have the same rotation direction;
A guide groove arranged along the force arm direction is formed in the force bearing end of the clamp arm; the front end hinge shaft of the first lever is in sliding fit in the guide groove;
The distance between the pivot and the front end hinge shaft of the first lever is a, the distance between the front end hinge shaft of the first lever and the rotating fulcrum of the first lever is b, and the distance is smaller than the sum of the lengths of a and b;
the opening and closing state of the inner included angle is the same as the opening and closing state of the jaw;
the second lever is a bent lever, a rotating fulcrum of the second lever is positioned at a bending position, the bending position tends to the inner side, and a stress force arm of the second lever is larger than an output force arm of the second lever.
2. A radial necking structure suitable for tubing as claimed in claim 1 wherein: the rotating fulcrum of the second lever and the tail end of the connecting rod are hinged on different thread sleeves; the two thread sleeves are matched on the screw rod, and the spiral directions of the two thread sleeves are opposite.
3. A radial necking structure suitable for tubing as claimed in claim 1 wherein: comprises two clamp arms, two first levers, two second levers and two connecting rods.
4. A radial necking structure for tubing according to claim 3 wherein: one pivot is provided for each jawarm to form a dual fulcrum structure.
5. A radial necking structure suitable for tubing in accordance with claim 4 wherein: the screw rod is positioned on the symmetrical axis surface.
6. A radial necking structure suitable for tubing in accordance with claim 5 wherein: two second levers are hinged to the first threaded sleeve, and two connecting rods are hinged to the second threaded sleeve.
7. A pistol-type crimping pliers suitable for the integration of a radial pinching structure of a tubular according to any one of the preceding claims 1 to 6, characterized in that: comprises a pistol-type shell and a motor; the motor and the radial closing-in structure are both arranged in the pistol-type shell; the screw rod is in transmission connection with a rotating shaft of the motor; the pistol type shell comprises a holding part and a starting switch.
8. The pistol encapsulating pliers of claim 7 wherein: the jaws are located outside the pistol housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490622.XA CN110102649B (en) | 2019-06-06 | 2019-06-06 | Radial binding off structure and pistol type binding off pincers suitable for pipe material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490622.XA CN110102649B (en) | 2019-06-06 | 2019-06-06 | Radial binding off structure and pistol type binding off pincers suitable for pipe material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110102649A CN110102649A (en) | 2019-08-09 |
| CN110102649B true CN110102649B (en) | 2024-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910490622.XA Active CN110102649B (en) | 2019-06-06 | 2019-06-06 | Radial binding off structure and pistol type binding off pincers suitable for pipe material |
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| CN (1) | CN110102649B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2407881Y (en) * | 2000-01-19 | 2000-11-29 | 浙江铭仕管业有限公司 | hand hydraulic pipe clamping and pressing device |
| CN200945519Y (en) * | 2006-07-11 | 2007-09-12 | 王安基 | Forging clamp |
| TWM478586U (en) * | 2014-01-24 | 2014-05-21 | yin-hua Ye | Structure of electric cutting pliers |
| CN104438910A (en) * | 2014-12-11 | 2015-03-25 | 重庆欣欣向荣精细化工有限公司 | Steel pipe clamp |
| KR20160111682A (en) * | 2015-03-17 | 2016-09-27 | 김칠현 | Structure of clamp press for press jointing of press type metal pipe joint. |
| CN205914644U (en) * | 2015-12-31 | 2017-02-01 | 开封空分集团有限公司 | Aluminium system star pipe assembly crimping pinchers |
| CN210280430U (en) * | 2019-06-06 | 2020-04-10 | 苏州宇园机械有限公司 | Radial closing-up structure and pistol type closing-up pliers suitable for tube material |
-
2019
- 2019-06-06 CN CN201910490622.XA patent/CN110102649B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2407881Y (en) * | 2000-01-19 | 2000-11-29 | 浙江铭仕管业有限公司 | hand hydraulic pipe clamping and pressing device |
| CN200945519Y (en) * | 2006-07-11 | 2007-09-12 | 王安基 | Forging clamp |
| TWM478586U (en) * | 2014-01-24 | 2014-05-21 | yin-hua Ye | Structure of electric cutting pliers |
| CN104438910A (en) * | 2014-12-11 | 2015-03-25 | 重庆欣欣向荣精细化工有限公司 | Steel pipe clamp |
| KR20160111682A (en) * | 2015-03-17 | 2016-09-27 | 김칠현 | Structure of clamp press for press jointing of press type metal pipe joint. |
| CN205914644U (en) * | 2015-12-31 | 2017-02-01 | 开封空分集团有限公司 | Aluminium system star pipe assembly crimping pinchers |
| CN210280430U (en) * | 2019-06-06 | 2020-04-10 | 苏州宇园机械有限公司 | Radial closing-up structure and pistol type closing-up pliers suitable for tube material |
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| Publication number | Publication date |
|---|---|
| CN110102649A (en) | 2019-08-09 |
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