CN112808922A - Riveting tool - Google Patents
Riveting tool Download PDFInfo
- Publication number
- CN112808922A CN112808922A CN202011636276.0A CN202011636276A CN112808922A CN 112808922 A CN112808922 A CN 112808922A CN 202011636276 A CN202011636276 A CN 202011636276A CN 112808922 A CN112808922 A CN 112808922A
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- CN
- China
- Prior art keywords
- pull rod
- transmission
- movable handle
- handle
- head assembly
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
- B21J15/383—Hand tools for riveting
Abstract
The invention provides a riveting tool. It has solved current technical problem. This riveting tool, including fixed handle and the movable handle who rotates the pin joint in fixed handle, the one end that has movable handle at fixed handle rotation pin joint is equipped with head assembly, head assembly include the cover barrel and wear to locate the cover barrel and can be for the pull rod body of cover barrel axial reciprocating motion, movable handle on rotate the pin joint and have the transmission pull rod, transmission pull rod slope upwards extend to head assembly, and when movable handle draws in and separates for fixed handle movable handle drive transmission pull rod for head assembly along transmission pull rod axial reciprocating motion, transmission pull rod and pull rod body between be connected with and can drive when transmission pull rod axial reciprocating motion's transmission structure. The invention has the advantages of stable transmission, reasonable design and the like.
Description
Technical Field
The invention belongs to the technical field of machinery, and particularly relates to a riveting tool.
Background
The rivet nut is a common rivet nut, is widely applied to the industries of aerospace, war industry, automobiles, ships, construction, installation, production and manufacture and the like with riveting and fastening requirements, has very wide civil application, and has huge annual demand on various products such as rivet nut tools in related industries and domestic and foreign civil markets. The main development directions of products such as a rivet nut tool and the like are cost performance, precision, convenience, high efficiency, labor saving and the like. Most of the existing rivet nut tools are provided with a movable handle and a fixed handle, the linkage with a working end is realized through opening or closing the movable handle during rivet operation, a pull rod is mostly adopted between the working end and the movable handle, however, most one end of the pull rod of the rivet nut tool in the prior art is hinged with the movable handle along with the hinged end of the working end, the pull rod can swing along with the swing of the movable handle, the transmission is not stable enough, and the design is unreasonable.
To solve this problem, research and study have been conducted in long-term production and life practice, and for example, chinese utility model discloses a riveting tool accessory with an adjustable operation direction and a riveting tool with an adjustable operation direction [ application No.: 201720199551.4], the utility model discloses a include the tube-shape hand (hold), wear to be equipped with in the tube-shape hand (hold) to be connected with tube-shape hand (hold) axial positioning and circumferential direction and the driving medium of being connected with tube-shape hand (hold) circumferential positioning and axial swing joint, can link to each other through helicitic texture between rotation piece and the driving medium, and can drive the driving medium when rotating a corotation or reversal and retreat or go forward, the driving medium front end is equipped with the connecting piece that riveting nut can be loaded to its front end, tube-shape hand (hold) front end is equipped with leads the mouth subassembly, and the connecting piece is worn to locate lead in the mouth subassembly and the front end of connecting piece can stretch out and lead outside the mouth subassembly, be equipped with compression pretension.
The solution described above improves to some extent some of the problems of the prior art, but it also has at least the following drawbacks: the transmission is unstable and the design is unreasonable.
Disclosure of Invention
The invention aims to solve the problems and provides a riveting tool which is stable in transmission and reasonable in design.
In order to achieve the purpose, the invention adopts the following technical scheme: this riveting tool, including fixed handle and the movable handle who rotates the pin joint in fixed handle, the one end that has movable handle at fixed handle rotation pin joint is equipped with head assembly, head assembly include the cover barrel and wear to locate the cover barrel and can be for the pull rod body of cover barrel axial reciprocating motion, movable handle on rotate the pin joint and have the transmission pull rod, transmission pull rod slope upwards extend to head assembly, and when movable handle draws in and separates for fixed handle movable handle drive transmission pull rod for head assembly along transmission pull rod axial reciprocating motion, transmission pull rod and pull rod body between be connected with and can drive when transmission pull rod axial reciprocating motion's transmission structure.
When the movable handle is folded and separated relative to the fixed handle, the transmission pull rod only can axially reciprocate and does not circumferentially swing along with the expansion or separation of the movable handle, and the transmission structure is more reasonable and more stable.
In the riveting tool, the transmission structure comprises a connecting rod, the middle part of the connecting rod is rotatably pivoted on the head assembly, one end of the connecting rod is rotatably connected with the pull rod body, and the other end of the connecting rod is rotatably connected with the transmission pull rod through the freedom degree release structure.
The transmission pull rod moves in a reciprocating way along the axial direction, and the movement of the transmission pull rod is linear along the axial direction of the transmission pull rod; when the pull rod body swings, one end of the pull rod body, which is connected with the transmission pull rod, swings in an arc shape; therefore, when the pull rod body is driven to swing through the transmission pull rod, the problem of blocking can occur due to lack of freedom degree of movement. Therefore, a degree of freedom release structure is required to be arranged between the two to solve the problems in the transmission process.
In the riveting tool, the freedom degree releasing structure comprises a rotating part which is rotatably connected to the end part of the transmission pull rod, the rotating central shaft of the rotating part is parallel to the axial direction of the transmission pull rod, and the connecting rod is rotatably pivoted with the side part of the rotating part.
In the riveting tool, the head assembly is rotatably connected with the fixed handle, and the rotating center line of the head assembly is superposed with the central axis of the transmission pull rod.
When the movable handle is opened relative to the fixed handle, the rear end of the transmission pull rod is connected with the movable handle to synchronously generate axial displacement along with the movable handle, the rotating piece can rotate relative to the transmission pull rod, and after the transmission pull rod is pulled downwards, the connecting rod pulls the pull rod body to generate axial displacement so as to realize work.
In the riveting tool, the head assembly further comprises a connecting seat with a hollow section, the sleeve body is fixedly connected to the connecting seat, and the transmission pull rod is axially arranged between the connecting seat and the movable handle in a reciprocating manner through an axial positioning structure;
the connecting seat is in clearance connection with the fixed handle, and a wave-shaped gasket is arranged between the bottom side of the connecting seat and the fixed handle. The wave-shaped gasket applies a damping to the connecting seat, and the stability of the head assembly in the circumferential direction during operation can be improved.
In foretell riveting tool, axial positioning structure include the connecting nut of one end and fixed handle looks spiro union, the other end of connecting nut extend to in the connecting seat, and support and lean on the connecting seat inboard through the annular step, connecting nut be the cavity form, the transmission pull rod wear to establish in connecting nut. The connecting nut can limit the freedom of the transmission pull rod, so that the transmission pull rod can only axially move in the axial direction of the connecting nut, and the transmission stability of the transmission pull rod is improved.
In the riveting tool, the lower end of the rotating part is provided with a screw hole, a fixing screw penetrates through the screw hole, one end of the fixing screw is screwed at the end part of the transmission pull rod, the other end of the fixing screw is positioned in the cavity of the connecting seat, and the bottom end of the fixing screw is in clearance connection with the upper end of the screw hole. The rotating part is axially connected with the transmission pull rod through a fixing screw to ensure that the rotating part and the transmission pull rod are coaxial all the time, the fixing screw is in clearance connection with the upper end of the screw hole, a left clearance and a right clearance are reserved between the fixing screw and the screw hole, accordingly, five degrees of freedom of the rotating part are limited, the rotating part can only rotate around the central axis of the transmission pull rod, and transmission is stable.
In the riveting tool, the rotating part is hinged with the connecting rod through a first pin shaft, and one end, far away from the rotating part, of the transmission pull rod is hinged with the movable handle through a second pin shaft. The linear distance between the first pin shaft and the second pin shaft is relatively fixed, and when the movable handle is opened, the second pin shaft moves backwards axially, and the first pin shaft also moves backwards relatively on the central axis of the rotating part and the transmission pull rod.
In the riveting tool, the connecting rod is hinged to the connecting seat through the fixed pin shaft, two ends of the first pin shaft are separated from the inner wall of the connecting seat, the hinge point of the connecting rod and the connecting seat deviates from the hinge point of the first pin shaft and the rotating part, two ends of the second pin shaft are separated from the inner wall of the fixed handle, and the hinge point of the fixed handle and the movable handle deviates from the hinge point of the movable handle and the fixed handle. When the movable handle is opened, the connecting rod is hinged to the connecting seat through the fixed pin shaft, and the hinged point of the connecting rod and the connecting seat deviates from the hinged point of the first pin shaft and the rotating part, so that the connecting rod can swing in the circumferential direction of the fixed pin shaft.
In the riveting tool, the connecting rod is extended with a transmission clamping arm, the transmission clamping arm is connected with the pull rod body, and the transmission clamping arm is hinged with the pull rod body or embedded in a transmission groove at the side part of the pull rod body. When the transmission clamping arm swings, the pull rod body is driven to axially move in the sleeve body.
Compared with the prior art, the riveting tool has the advantages that:
1. when the movable handle is folded and separated relative to the fixed handle, the transmission pull rod only can axially reciprocate and does not circumferentially swing along with the expansion or separation of the movable handle, and the transmission structure is more reasonable and more stable.
2. The wave-shaped gasket applies a damping to the connecting seat, and the stability of the head assembly in the circumferential direction during operation can be improved.
3. The rotating member is axially connected with the transmission pull rod through a fixing screw to ensure that the rotating member and the transmission pull rod are coaxial all the time, the fixing screw is in clearance connection with the upper end of the screw hole, a 0.2mm left-right clearance is reserved between the fixing screw and the screw hole, five degrees of freedom of the rotating member are limited, the rotating member can only be rotated around the central axis of the transmission pull rod, and the transmission is stable.
Drawings
FIG. 1 is a cross-sectional view of a structure provided by the present invention;
FIG. 2 is a cross-sectional view of another embodiment of the present invention;
FIG. 3 is a schematic structural view of the exterior provided by the present invention;
FIG. 4 is a schematic structural view of a degree of freedom release structure provided by the present invention;
FIG. 5 is a schematic view in half section of a drive link and rotating member provided by the present invention;
in the figure, a head assembly 1a, a transmission structure 2a, a fixed handle 1, a movable handle 2, a connecting seat 3, a sleeve body 4, a pull rod body 5, a freedom degree release structure 6, a transmission pull rod 7, a rotating member 8, a connecting rod 9, an axial positioning structure 10, a connecting nut 11, a screw hole 12, a fixing screw 13, a first pin shaft 14, a second pin shaft 15, a fixing pin shaft 16, a transmission clamping arm 17, a transmission groove 18 and a waveform gasket 19.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-5, the riveting tool includes a fixed handle 1 and a movable handle 2 rotatably pivoted to the fixed handle 1, a head assembly 1a is disposed at one end of the fixed handle 1 rotatably pivoted to the movable handle 2, the head assembly 1a includes a sleeve body 4 and a pull rod body 5 penetrating through the sleeve body 4 and capable of axially reciprocating with respect to the sleeve body 4, a transmission pull rod 7 is rotatably pivoted to the movable handle 2, the transmission pull rod 7 extends obliquely upward to the head assembly 1a, the movable handle 2 drives the transmission pull rod 7 to axially reciprocate along the transmission pull rod 7 with respect to the head assembly 1a when the movable handle 2 is folded in and separated with respect to the fixed handle 1, and a transmission structure 2a capable of driving the pull rod body 5 to axially reciprocate is connected between the transmission pull rod 7 and the pull rod body 5.
When the movable handle 2 is folded and separated relative to the fixed handle 1, the transmission pull rod 7 only can axially reciprocate and can not circumferentially swing along with the expansion or separation of the movable handle 2, and the transmission structure is more reasonable and more stable.
Preferably, the transmission structure 2a includes a connecting rod 9 pivotally connected to the head assembly 1a at the middle, one end of the connecting rod 9 is rotatably connected to the pull rod body 5, and the other end is rotatably connected to the transmission pull rod 7 through the freedom degree releasing structure 6. Because the transmission pull rod 7 moves back and forth along the axial direction, the movement of the transmission pull rod 7 moves linearly along the axial direction; when the pull rod body 5 swings, one end of the pull rod body 5 connected with the transmission pull rod 7 swings in an arc shape; therefore, when the transmission pull rod 7 drives the pull rod body 5 to swing, the problem of jamming can occur due to lack of freedom of movement. Therefore, a degree of freedom releasing structure 6 is required to be arranged between the two to solve the problem in the transmission process.
Further, the freedom degree releasing structure 6 comprises a rotating part 8 which is rotatably connected to the end part of the transmission pull rod 7, the rotating central axis of the rotating part 8 is parallel to the axial direction of the transmission pull rod 7, the connecting rod 9 is rotatably pivoted with the side part of the rotating part 8, the head component 1a is rotatably connected with the fixed handle 1, and the rotating central line of the head component 1a is superposed with the central axis of the transmission pull rod 7.
When the movable handle 2 is opened relative to the fixed handle 1, the rear end of the transmission pull rod 7 is connected with the movable handle 2 and synchronously generates axial displacement along with the movable handle 2, the rotating piece 8 can rotate relative to the transmission pull rod 7, after the transmission pull rod 7 is pulled downwards, the connecting rod 9 pulls the pull rod body 5 to generate axial displacement so as to realize work, and the rotating piece 8 is rotatably connected on the connecting rod 9, so that when the rotating piece 8 rotates, the pull rod body 5 connected with the connecting rod 9 and the head assembly 1a can rotate randomly in the circumferential direction of the transmission pull rod 7 without influencing the axial displacement of the transmission pull rod 7, and therefore the universal transmission of the pull rod body 5 is realized.
Furthermore, the head assembly 1a further comprises a connecting seat 3 with a U-shaped and hollow section, the sleeve body 4 is fixedly connected to the connecting seat 3, and the transmission pull rod 7 is axially and reciprocally arranged between the connecting seat 3 and the movable handle 2 through an axial positioning structure 10; the connecting seat 3 is in clearance connection with the fixed handle 1, and a wave-shaped gasket 19 is arranged between the bottom side of the connecting seat 3 and the fixed handle 1. The wave washer 19 applies a damping force to the joint holder 3, and improves the stability of the head assembly 1a in the circumferential direction during operation.
The axial positioning structure 10 comprises a connecting nut 11 with one end screwed with the fixed handle 1, the other end of the connecting nut 11 extends into the connecting seat 3 and is abutted against the inner side of the connecting seat 3 through an annular step, the connecting nut 11 is hollow, the transmission pull rod 7 is arranged in the connecting nut 11 in a penetrating way, the connecting nut 11 can limit the degree of freedom of the transmission pull rod 7, and the transmission pull rod can only axially move in the axial direction of the connecting nut 11, so that the transmission stability of the transmission pull rod 7 is improved.
The lower end of the rotating piece 8 is provided with a screw hole 12, a fixing screw 13 penetrates through the screw hole 12, one end of the fixing screw 13 is screwed on the end part of the transmission pull rod 7, the other end of the fixing screw 13 is positioned in the cavity of the connecting seat 3, and the bottom end of the fixing screw is in clearance connection with the upper end of the screw hole 12. The rotating part 8 is axially connected with the transmission pull rod 7 through a fixing screw 13 to ensure that the rotating part 8 and the transmission pull rod 7 are coaxial all the time, the fixing screw 13 is in clearance connection with the upper end of the screw hole 12, a clearance of 0.2mm is left between the fixing screw 13 and the screw hole 12, five degrees of freedom of the rotating part 8 are limited, the rotating part 8 can only rotate around the central axis of the transmission pull rod 7, and the transmission is stable.
The rotating part 8 is hinged with the connecting rod 9 through a first pin shaft 14, one end, far away from the rotating part 8, of the transmission pull rod 7 is hinged with the movable handle 2 through a second pin shaft 15, the linear distance between the first pin shaft 14 and the second pin shaft 15 is relatively fixed, and when the movable handle 2 is opened, the second pin shaft 15 moves backwards in the axial direction, and the first pin shaft 14 also moves backwards relatively on the central axis of the rotating part 8 and the transmission pull rod 7.
In addition, connecting rod 9 articulates in connecting seat 3 through fixed pin axle 16, first round pin axle 14 both ends with in the phase separation of connecting seat 3 inner wall, and connecting rod 9 and the pin joint of connecting seat 3's pin joint skew first round pin axle 14 and rotating member 8, the pin joint of the pin joint skew movable handle 2 and fixed handle 1 of second round pin axle 15's both ends and fixed handle 1 inner wall phase separation and fixed handle 1 and movable handle 2, when movable handle 2 opens, because connecting rod 9 articulates in connecting seat 3 through fixed pin axle 16, and connecting rod 9 and connecting seat 3's pin joint skew first round pin axle 14 and rotating member 8, consequently connecting rod 9 can be swung in the circumferencial direction of fixed pin axle 16.
The connecting rod 9 is extended with a transmission clamping arm 17, the transmission clamping arm 17 is connected with the pull rod body 5, the transmission clamping arm 17 is hinged with the pull rod body 5 or embedded in a transmission groove 18 at the side part of the pull rod body 5, and when the transmission clamping arm 17 swings, the pull rod body 5 is driven to axially move in the sleeve body 4.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides a riveting tool, includes fixed handle (1) and rotates movable handle (2) of pin joint in fixed handle (1), rotates the one end that the pin joint has movable handle (2) at fixed handle (1) and is equipped with head assembly (1a), head assembly (1a) including cover barrel (4) and wear to locate cover barrel (4) and can be for cover barrel (4) axial reciprocating motion's pull rod body (5), its characterized in that, movable handle (2) on rotate the pin joint and have transmission pull rod (7), transmission pull rod (7) slope upwards extend to head assembly (1a), and when movable handle (2) draw in and separate for fixed handle (1) movable handle (2) drive transmission pull rod (7) along transmission pull rod (7) axial reciprocating motion for head assembly (1a), transmission pull rod (7) and pull rod body (5) between be connected with when transmission pull rod (7) axial reciprocating motion The transmission structure (2a) can drive the pull rod body (5) to axially reciprocate when in motion.
2. Riveting tool according to claim 1, wherein the transmission structure (2a) comprises a connecting rod (9) pivoted to the head assembly (1a) in such a way that the middle part thereof is rotatable, one end of the connecting rod (9) being rotatably connected to the tie rod body (5) and the other end thereof being rotatably connected to the transmission tie rod (7) via the freedom release structure (6).
3. Riveting tool according to claim 2, wherein the freedom release structure (6) comprises a rotary member (8) rotatably connected to the end of the drive rod (7), the central axis of rotation of the rotary member (8) being parallel to the axial direction of the drive rod (7), and the link (9) being rotatably pivoted to the side of the rotary member (8).
4. Riveting tool according to claim 1 or 2 or 3, wherein the head assembly (1a) is rotatably connected with the fixed handle (1), and the rotation center line of the head assembly (1a) is coincident with the central axis of the transmission pull rod (7).
5. A riveting tool according to claim 3, wherein the head assembly (1a) further comprises a connecting seat (3) which is hollow and has a U-shaped cross section, the sleeve body (4) is fixedly connected to the connecting seat (3), and the transmission pull rod (7) is axially and reciprocally arranged between the connecting seat (3) and the movable handle (2) through an axial positioning structure (10);
the connecting seat (3) is in clearance connection with the fixed handle (1), and a wave-shaped gasket (19) is arranged between the bottom side of the connecting seat (3) and the fixed handle (1).
6. The riveting tool according to claim 5, wherein the axial positioning structure (10) comprises a connecting nut (11) having one end screwed with the fixing handle (1), the other end of the connecting nut (11) extends into the connecting seat (3) and abuts against the inner side of the connecting seat (3) through an annular step, the connecting nut (11) is hollow, and the transmission pull rod (7) is inserted into the connecting nut (11).
7. The riveting tool according to claim 6, wherein the lower end of the rotating member (8) is provided with a screw hole (12), a fixing screw (13) penetrates through the screw hole (12), one end of the fixing screw (13) is screwed on the end of the transmission pull rod (7), the other end of the fixing screw (13) is positioned in the cavity of the connecting seat (3), and the bottom end of the fixing screw is in clearance connection with the upper end of the screw hole (12).
8. Riveting tool according to claim 7, wherein the rotary member (8) is hinged to the connecting rod (9) by a first pin (14), and the end of the transmission rod (7) remote from the rotary member (8) is hinged to the movable handle (2) by a second pin (15).
9. A riveting tool according to claim 8, wherein the connecting rod (9) is hinged to the connecting seat (3) through a fixed pin (16), both ends of the first pin (14) are separated from the inner wall of the connecting seat (3), a hinge point of the connecting rod (9) and the connecting seat (3) deviates from a hinge point of the first pin (14) and the rotating member (8), both ends of the second pin (15) are separated from the inner wall of the fixed handle (1), and a hinge point of the fixed handle (1) and the movable handle (2) deviates from a hinge point of the movable handle (2) and the fixed handle (1).
10. The riveting tool according to claim 1, wherein the connecting rod (9) is extended with a transmission clamping arm (17), the transmission clamping arm (17) is connected with the pull rod body (5), and the transmission clamping arm (17) is hinged with the pull rod body (5) or embedded in a transmission groove (18) at the side part of the pull rod body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011636276.0A CN112808922A (en) | 2020-12-31 | 2020-12-31 | Riveting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011636276.0A CN112808922A (en) | 2020-12-31 | 2020-12-31 | Riveting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112808922A true CN112808922A (en) | 2021-05-18 |
Family
ID=75857153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011636276.0A Pending CN112808922A (en) | 2020-12-31 | 2020-12-31 | Riveting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112808922A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4653309A (en) * | 1986-01-07 | 1987-03-31 | The Boeing Company | Hand tool for installing plastic fasteners |
| CN2604288Y (en) * | 2003-03-05 | 2004-02-25 | 刘保坊 | Riveting machine structure |
| CN201068937Y (en) * | 2007-06-22 | 2008-06-04 | 刘茂村 | Universal joints actuator structure |
| CN101354062A (en) * | 2007-07-24 | 2009-01-28 | 胡厚飞 | Improved structure of universal joint |
| CN104772751A (en) * | 2015-04-02 | 2015-07-15 | 上海新纪元机器人有限公司 | Three degree-of-freedom parallel mechanism |
| CN205298244U (en) * | 2015-12-17 | 2016-06-08 | 广合科技有限公司 | Universal pivot structure |
| CN208442534U (en) * | 2018-06-08 | 2019-01-29 | 深圳市玖壹捌捌科技有限公司 | Adjustable support |
-
2020
- 2020-12-31 CN CN202011636276.0A patent/CN112808922A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4653309A (en) * | 1986-01-07 | 1987-03-31 | The Boeing Company | Hand tool for installing plastic fasteners |
| CN2604288Y (en) * | 2003-03-05 | 2004-02-25 | 刘保坊 | Riveting machine structure |
| CN201068937Y (en) * | 2007-06-22 | 2008-06-04 | 刘茂村 | Universal joints actuator structure |
| CN101354062A (en) * | 2007-07-24 | 2009-01-28 | 胡厚飞 | Improved structure of universal joint |
| CN104772751A (en) * | 2015-04-02 | 2015-07-15 | 上海新纪元机器人有限公司 | Three degree-of-freedom parallel mechanism |
| CN205298244U (en) * | 2015-12-17 | 2016-06-08 | 广合科技有限公司 | Universal pivot structure |
| CN208442534U (en) * | 2018-06-08 | 2019-01-29 | 深圳市玖壹捌捌科技有限公司 | Adjustable support |
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