CN110883728B - Multi-nut quick dismounting device with variable wheelbase - Google Patents
Multi-nut quick dismounting device with variable wheelbase Download PDFInfo
- Publication number
- CN110883728B CN110883728B CN201911295332.6A CN201911295332A CN110883728B CN 110883728 B CN110883728 B CN 110883728B CN 201911295332 A CN201911295332 A CN 201911295332A CN 110883728 B CN110883728 B CN 110883728B
- Authority
- CN
- China
- Prior art keywords
- bevel gear
- outer bevel
- spring
- variable
- rotating shaft
- Prior art date
- 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.)
- Active
Links
- 230000009471 action Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a multi-nut variable-wheelbase quick dismounting device, which comprises: the shell is arranged in the shell, the inner bevel gear and the first outer bevel gear penetrate through the shell, a rotating shaft is connected with the inner bevel gear and the first outer bevel gear through the shell, the inner end of the rotating shaft is in limit connection with the first outer bevel gear through an axial limiting piece, and the rotating shaft is connected with one of the inner bevel gear and the first outer bevel gear through a rotating limiting piece; a plurality of second outer bevel gears meshed with the inner bevel gears are arranged between the inner bevel gears and the first outer bevel gears, working rods are fixed in the centers of the second outer bevel gears, strip-shaped slideways corresponding to the working rods are arranged on the bottom plate of the shell, and the working rods penetrate out of the corresponding strip-shaped slideways; and a first spring is sleeved on each working rod, and two ends of the first spring are respectively contacted with the bottom plate and the second outer bevel gear. The invention has the characteristics of reasonable and stable structure, continuous and rapid wheelbase conversion, convenient operation, simple use, easy operation and wide universality.
Description
Technical Field
The invention relates to the technical field of nut disassembly and assembly, in particular to a multi-nut variable-wheelbase quick disassembly and assembly device.
Background
In the work of disassembling and assembling a rotary workpiece, it is common to arrange two to four nuts in a cross shape. At present, most wrenches are of a single-nut dismounting structure, so that the number of times is large when the wrenches are used for dismounting the rotary workpieces, the wrenches are not convenient enough, most wrenches can only dismount the single workpieces and cannot be dismounted quickly, the dismounting times are reduced, and the ideal tool use conditions of users cannot be met.
At present, in the maintenance process of an automobile engine and tooling equipment, a plurality of nuts with asymmetric symmetry and unequally spaced are required to be dismounted at the same time, however, no device capable of dismounting a plurality of nuts with asymmetric symmetry and unequally spaced at the same time is available in the market at present. Maintenance personnel can only assemble and disassemble nuts one by one, so that the phenomenon that the working efficiency is low and the moment is difficult to unify during assembly and disassembly is caused.
The Chinese patent publication No. CN205572284U discloses a multi-nut dismounting device with a variable center distance, which comprises a planet carrier 01, wherein the planet carrier 01 is provided with a central through hole 02 and a plurality of strip-shaped holes which are arranged around the central through hole 02, the length direction of each strip-shaped hole points to the center of the central through hole 02, a rotatable sun wheel 03 is arranged in the central through hole 02, the center of a rotating shaft of the sun wheel 03 is provided with a driving connection structure, an adjusting block 04 is arranged in each strip-shaped hole, one end of each adjusting block 04 and one end of each strip-shaped hole form a planet wheel hole, a planet wheel 05 meshed with the sun wheel 03 is rotatably arranged in each planet wheel hole, and a sleeve is arranged at the rotation axis position of the planet wheel 05. The utility model can change the center distance and simultaneously disassemble and assemble a plurality of nuts, but has the following defects: 1) When the center distance is changed, the sun gear needs to be replaced and the position of the adjusting block is adjusted, so that the operation and adjustment are very inconvenient. 2) The planet wheel hole is formed by the adjusting block 04 and one end of the strip-shaped hole, the center distance which can be changed is only two values, and the application range is narrow. 3) Planet wheel and sun gear only one side contact, and structural stability is poor, and the dead trouble of card easily appears when too big power of transmission between the two, leads to many nuts dismouting device to be unable to use.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide the quick dismounting device which has reasonable and stable overall structure, continuous and quick wheelbase conversion, convenient operation, simple and easy use, easy operation and wide universality.
In order to achieve the above purpose, the invention adopts the following technical scheme.
The utility model provides a but variable wheelbase quick assembly disassembly device of many nuts which characterized in that includes: the device comprises a shell, an inner bevel gear arranged in the shell, and a first outer bevel gear arranged in the inner bevel gear, wherein a rotating shaft penetrates through the shell to be connected with the inner bevel gear and the first outer bevel gear, the inner end of the rotating shaft is in limit connection with the first outer bevel gear through an axial limiting piece so that the first outer bevel gear can axially move along with the rotating shaft, and the rotating shaft is connected with one of the inner bevel gear and the first outer bevel gear through a rotating limiting piece so that the inner bevel gear or the first outer bevel gear can rotate along with the rotating shaft; a plurality of second outer bevel gears are arranged between the inner bevel gears and the first outer bevel gears, a working rod is fixed at the center of each second outer bevel gear, a strip-shaped slideway corresponding to each working rod is arranged on the bottom plate of the shell, each working rod penetrates out of the corresponding strip-shaped slideway, and the trend of each strip-shaped slideway is vertical to the axial direction of the rotating shaft; and a first spring is sleeved on each working rod, two ends of the first spring are respectively contacted with the bottom plate and the second outer bevel gear, and the second outer bevel gear is meshed with the inner bevel gear and the first outer bevel gear under the action of elasticity provided by the first spring.
More preferably, a second spring is arranged between the first outer bevel gear and the inner bevel gear, the first outer bevel gear and the second outer bevel gear keep meshing balance under the combined action of the first spring and the second spring.
More preferably, the second spring is sleeved on the rotating shaft, one end of the second spring is contacted with the inner bevel gear through a first pad seat and a first anti-interference bearing, and the other end of the second spring is contacted with the first outer bevel gear through a second pad seat and a second anti-interference bearing.
More preferably, a sliding block is arranged on each strip-shaped slideway, a through hole for allowing the working rod to penetrate out is arranged on each sliding block, and two ends of the first spring are respectively contacted with the sliding block and the second outer bevel gear.
More preferably, a third pad is arranged at one end of the first spring, and the third pad is separated from the second external bevel gear through a third interference-preventing bearing; the other end of the first spring is in direct contact with the sliding block, and the sliding block is kept connected with the working rod through a ball bearing.
More preferably, the axial limiting part is a limiting nut arranged on the rotating shaft, and a fourth interference-preventing bearing is arranged between the limiting nut and the first inner bevel gear.
More preferably, the rotation limiting part is a bar-shaped protrusion or a bar-shaped groove formed on the outer wall of the rotating shaft, and the trend of the bar-shaped protrusion or the bar-shaped groove is consistent with the axial direction of the rotating shaft.
More preferably, a fifth interference-preventing bearing is provided between the housing and the inner bevel gear.
More preferably, the thickness of the first outer bevel gear is greater than the thickness of the second outer bevel gear.
More preferably, the outer end of the rotating shaft is connected with a telescopic folding rotating handle of the variable force arm, the telescopic folding rotating handle of the variable force arm comprises a first telescopic arm, a variable force arm and a second telescopic arm which are sequentially inserted, the first telescopic arm and the second telescopic arm are L-shaped, and the variable force arm is U-shaped.
The beneficial effects of the invention are as follows:
1. When the device is actually operated, the bottom plate and the rotating shaft (the handle) are pressed, the first outer bevel gear and the inner bevel gear relatively move, so that the second outer bevel gear is driven to move along the inner bevel gear, and meanwhile, the working rod is outwards expanded or inwards contracted along the strip-shaped slideway of the bottom plate to adjust and change the wheelbase; when the wheelbase is consistent with the wheelbase of the nut to be disassembled, the spanner head arranged on the working rod is sleeved into the nut, the rotating shaft starts to rotate, and the second outer bevel gear is driven to rotate, so that the aim of synchronously disassembling a plurality of nuts is fulfilled. Compared with the existing multi-nut dismounting device, the multi-nut dismounting device organically combines the shell, the inner bevel gear, the first outer bevel gear and the second outer bevel gear, and drives the working rod by using the second outer bevel gear positioned between the inner bevel gear and the first outer bevel gear, so that the multi-nut dismounting device has reasonable and stable overall structure, good reliability and large bearable applied force; and along with the difference of the pressing force, the wheelbase of each working rod can be continuously changed, and the device is convenient to operate, easy to use, easy to operate and wide in universality.
2. The second spring is arranged between the first outer bevel gear and the inner bevel gear, and the first spring is arranged between the bottom plate and the second outer bevel gear in a combined way; the inner bevel gear, the first outer bevel gear and the second outer bevel gear can be kept in meshing balance, and meshing failure caused by external force action or vibration is avoided.
3. Through setting up each cushion and each anti-interference bearing, avoid interfering because of the relative motion takes place between the spare part, further provide overall structure's stability and life.
4. The handle adopts the folding rotary handle of telescopic variable force arm, can reach laborsaving and quick assembly disassembly's purpose through variable force arm.
Drawings
Fig. 1 is a schematic structural view of a conventional multi-nut dismounting device.
Fig. 2 is a schematic structural diagram of a multi-nut variable-wheelbase quick assembly and disassembly device provided by the invention.
Fig. 3 is an enlarged view of a portion of fig. 2.
Fig. 4 is a schematic diagram showing an assembly structure of the base plate and the slider.
Fig. 5 is a schematic view showing an assembly structure of the base plate and the housing.
Fig. 6 is an exploded view of the multi-nut variable wheelbase quick assembly and disassembly device according to the present invention.
Fig. 7 is a schematic view of a slider structure.
FIG. 8 is a schematic view of a cross-shaft configuration.
Reference numerals illustrate:
01: planet carrier, 02: central through hole, 03: sun gear, 04: adjusting block, 05: and (3) a planet wheel.
1: Folding twist grip of telescopic variable force arm, 2: cross, 3,4, 14, 16: plane bearing, 5, 9, 15: cushion seat, 6: second spring, 7: a housing 8: internal bevel gear, 10: gasket, 11: roller bearing, 12: first outer bevel gear, 13: second outer bevel gear, 17: nut, 18: first spring, 19: ball bearing, 20: slider, 21: bottom plate, 22: and (5) a screw.
Detailed Description
In the description of the present invention, it should be noted that, for the azimuth words such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present invention that the device or element referred to must have a specific azimuth configuration and operation.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such features, and in the description of the invention, "at least" means one or more, unless clearly specifically defined otherwise.
In the present invention, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "below," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply representing the first feature as having a higher level than the second feature. The first feature being "above," "below," and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or simply indicating that the first feature is level below the second feature.
The following description of the specific embodiments of the present invention is further provided with reference to the accompanying drawings, so that the technical scheme and the beneficial effects of the present invention are more clear and definite. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the invention and are not to be construed as limiting the invention.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
As shown in fig. 2 to 8, a multi-nut variable wheelbase quick assembly and disassembly device includes: the telescopic variable force arm folding rotary handle 1 is connected to the cross shaft 2 and is connected and disassembled; the shell 7 is positioned at the outermost end, and holes are formed in the intersection of the shell 7 and the cross shaft 2 to prevent interference; the inner bevel gear 8 is arranged in the shell 7, and the intersection with the cross shaft 2 is a cross opening; the shell 7 and the inner bevel gear 8 are limited by the plane bearing 3 and are prevented from interfering with each other; the disassembly power drives the inner bevel gear 8 to move through the telescopic variable force arm folding rotary handle 1 and the cross shaft 2; the first outer bevel gear 12 is positioned on the cross shaft 2, the first outer bevel gear 12 and the cross shaft 2 keep clearance by limiting the first outer bevel gear 12 and the second spring 6 on the cross shaft 2 through a nut 17, and the second spring 6 is prevented from interfering with the inner bevel gear 8 through the plane bearing 4; a cushion seat 5 is arranged between the second spring 6 and the plane bearing 4, grooves are formed at two ends of the cushion seat 5, one end of the cushion seat is fixed by the plane bearing 4, the other end of the cushion seat is fixed by the second spring 6, the cushion seat 5 is the same as the shell 7, and a through hole is formed to prevent interference of the cross shaft 2; the second spring 6 is fixed between the first outer bevel gear 12 through a cushion seat 9; the first thick outer bevel gear 12 of the roller bearing 11 and the plane bearing 16 are respectively used between the pad seat 9 and the nut 17 and kept idle in the dismounting process, the gasket 10 is used between the pad seat 9 and the roller bearing 11 to prevent mutual interference, and the gasket is used between the plane bearing 16 and the nut 17 to prevent mutual interference; the second outer bevel gears 13 are meshed between the inner bevel gears 8 and the first outer bevel gears 12, a working rod is fixed at the center of each second outer bevel gear, one end of each working rod is square and can be connected with different sleeves to perform operation, the total number of the second outer bevel gears 13 is 4, and the inner balance of each second outer bevel gear is maintained through 4 first springs 18 and second springs 6; one end of the first spring 18 is provided with a pad 15, and the pad and the second outer bevel gear 13 are kept not to interfere with each other through a plane bearing 14; the other end of the first spring 18 is in direct contact with a sliding block 20, and the sliding block 20 is kept connected with the working rod through a ball bearing 19; the bottom plate 21 of the housing 7 has 4 bar-shaped slides, and the slide blocks 20 are positioned in the bar-shaped slides, and the bottom plate 21 is kept connected with the housing 7 through 8 screws 22 to fix the internal structure of the device.
The telescopic variable force arm folding rotary handle 1 comprises a first telescopic arm, a variable force arm and a second telescopic arm which are spliced in sequence, wherein the first telescopic arm and the second telescopic arm are L-shaped, and the variable force arm is U-shaped; the two ends of the variable force arm and the first telescopic arm and the second telescopic arm respectively form an inserting structure with adjustable relative positions.
In actual operation, the up-and-down motion of the first outer bevel gear 12 is utilized to drive the second outer bevel gear 13 to move along the inner bevel gear 8, and the sliding block 20 expands outwards along the slideway to enlarge the distance between shafts of the working rod, so that the disassembly and assembly of the rotating workpiece in cross arrangement in a certain range are adapted, and the required use effect is achieved. When the rotating shaft rotates, the inner bevel gear 8 drives the 4 second outer bevel gears 13 to rotate in the same direction, and the first outer bevel gear in the middle idles, does not provide power, and only provides a fixing effect. When working without a wrench, the internal gear balance is maintained by the meshing of the different gears and the elastic force of the 2 springs, preferably the elastic force of the second spring 6 is greater than the sum of the elastic forces of the 4 first springs 18.
When the multi-nut variable-wheelbase quick dismounting device is used, the steps are as follows:
Step one: the plane bearing 3 is assembled between the shell 7 and the inner bevel gear 8, the cross shaft 2 moves from outside to inside, and the gasket is assembled on the cross shaft 2 in sequence according to the plane bearing 4, the gasket seat 5, the second spring 6, the gasket seat 9, the gasket 10, the roller bearing 11, the first outer bevel gear 12, the plane bearing 16 and the gasket, and is fixed along the threads of the cross shaft (2) by using the nut 17.
Step two: the slide 20 moves along the strip-shaped slideway of the bottom plate 21 and is positioned at the innermost side, and the ball bearing 19 is assembled in the middle of the slide 20.
Step three: the first spring 18, the pad 15, the plane bearing 14 and the second external bevel gear 13 are sequentially arranged, the shell part and the bottom plate part are matched, debugged and assembled, and sequentially fixed by using screws 22.
Step four: the telescopic folding rotary handle 1 with the variable force arm is installed, the sleeve is installed on the working rod, the base plate is pressed to change the shaft diameter, and after the telescopic folding rotary handle 1 with the variable force arm is installed on a rotary workpiece to be disassembled and assembled, the telescopic folding rotary handle 1 with the variable force arm is rotated to perform operation.
The multi-nut variable-wheelbase quick dismounting device is suitable for two to four nuts or other rotating workpieces with the wheelbase of 90-120 mm. The shaft diameter can be changed by pressing the bottom plate, the tool can be fixed by sleeving the sleeve with the workpiece, the whole structure is reasonable and stable, the reliability is good, and the application force bearable by the working rod is large; and along with the difference of the pressing force, the wheelbase of each working rod can be continuously changed, so that the device is convenient to operate, easy to use, wide in universality, suitable for a plurality of working scenes and capable of achieving the purpose of quick assembly and disassembly.
As an alternative implementation of the above embodiment, the second spring is omitted, and the axial limitation of the first external bevel gear is implemented by using nuts mounted on the upper and lower sides of the first external bevel gear.
As a conversion implementation mode of the embodiment, the cross shaft is in rotary fit with the first outer bevel gear and is in rotary connection with the inner bevel gear, and when the cross shaft works, the first outer bevel gear is utilized to drive the second outer bevel gear to rotate, and the inner bevel gear idles, power is not provided, and only a fixing effect is provided.
As an alternative implementation manner of the above embodiment, the cross axle is replaced by a plum blossom shaft or other rotating shafts with strip-shaped protrusions or strip-shaped grooves on the surfaces, so long as one of the inner bevel gear and the first outer bevel gear can be rotated to limit, and the other one can be rotated to leave empty. The telescopic folding rotary handle with the variable force arm is replaced by other handles, so long as the rotary handle can provide a rotating force.
As a variant of the above embodiment, the size of each part is enlarged to achieve the purpose of detachable different diameter ranges, and the size is not limited to 90-120mm as exemplified in the above embodiment.
As an alternative embodiment of the above embodiment, the number of removable parts is increased by increasing the number of the second external bevel gears, and is not limited to the above embodiment.
As a modified design of the above embodiment, each of the pad and the interference-preventing bearing may be partially or entirely omitted, and is not limited to the above embodiment.
It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, but is intended to cover modifications and alternatives falling within the spirit and scope of the invention as defined by the appended claims and their equivalents. The portions of the detailed description that are not presented are all prior art or common general knowledge.
Claims (10)
1. The utility model provides a but variable wheelbase quick assembly disassembly device of many nuts which characterized in that includes: the device comprises a shell, an inner bevel gear arranged in the shell, and a first outer bevel gear arranged in the inner bevel gear, wherein a rotating shaft penetrates through the shell to be connected with the inner bevel gear and the first outer bevel gear, the inner end of the rotating shaft is in limit connection with the first outer bevel gear through an axial limiting piece so that the first outer bevel gear can axially move along with the rotating shaft, and the rotating shaft is connected with one of the inner bevel gear and the first outer bevel gear through a rotating limiting piece so that the inner bevel gear or the first outer bevel gear can rotate along with the rotating shaft;
A plurality of second outer bevel gears are arranged between the inner bevel gears and the first outer bevel gears, a working rod is fixed at the center of each second outer bevel gear, a strip-shaped slideway corresponding to each working rod is arranged on the bottom plate of the shell, each working rod penetrates out of the corresponding strip-shaped slideway, and the trend of each strip-shaped slideway is vertical to the axial direction of the rotating shaft;
And a first spring is sleeved on each working rod, two ends of the first spring are respectively contacted with the bottom plate and the second outer bevel gear, and the second outer bevel gear is meshed with the inner bevel gear and the first outer bevel gear under the action of elasticity provided by the first spring.
2. The multi-nut variable wheelbase quick assembly disassembly device of claim 1 wherein a second spring is disposed between the first outer bevel gear and the inner bevel gear, the first outer bevel gear and the second outer bevel gear being maintained in meshing balance under the combined action of the first spring and the second spring.
3. The multi-nut variable-wheelbase quick assembly disassembly device according to claim 2, wherein the second spring is sleeved on the rotating shaft, one end of the second spring is in contact with the inner bevel gear through a first pad seat and a first anti-interference bearing, and the other end of the second spring is in contact with the first outer bevel gear through a second pad seat and a second anti-interference bearing.
4. The multi-nut variable-wheelbase quick assembly disassembly device according to claim 1, wherein a sliding block is arranged on each strip-shaped slideway, a through hole for allowing the working rod to penetrate is formed in the sliding block, and two ends of the first spring are respectively contacted with the sliding block and the second external bevel gear.
5. The quick assembly disassembly device with the multiple nuts and the variable wheelbase according to claim 4, wherein a third pad is arranged at one end of the first spring, and the third pad is separated from the second external bevel gear through a third anti-interference bearing; the other end of the first spring is in direct contact with the sliding block, and the sliding block is kept connected with the working rod through a ball bearing.
6. The multi-nut variable-wheelbase quick assembly disassembly device according to claim 1, wherein the axial limiting piece is a limiting nut arranged on the rotating shaft, and a fourth anti-interference bearing is arranged between the limiting nut and the inner bevel gear.
7. The multi-nut variable-wheelbase quick assembly disassembly device according to claim 1, wherein the rotation limiting piece is a strip-shaped protrusion or a strip-shaped groove formed on the outer wall of the rotating shaft, and the trend of the strip-shaped protrusion or the strip-shaped groove is consistent with the axial direction of the rotating shaft.
8. The multi-nut variable wheelbase quick assembly disassembly device of claim 1 wherein a fifth interference-preventing bearing is provided between the housing and the inner bevel gear.
9. The multi-nut variable wheelbase quick assembly disassembly device of claim 1 wherein the thickness of the first outer bevel gear is greater than the thickness of the second outer bevel gear.
10. The multi-nut variable-wheelbase quick assembly disassembly device is characterized in that the outer end of the rotating shaft is connected with a telescopic variable-force arm folding rotating handle, the telescopic variable-force arm folding rotating handle comprises a first telescopic arm, a variable force arm and a second telescopic arm which are sequentially inserted, the first telescopic arm and the second telescopic arm are L-shaped, and the variable force arm is U-shaped; the two ends of the variable force arm and the first telescopic arm and the second telescopic arm respectively form an inserting structure with adjustable relative positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911295332.6A CN110883728B (en) | 2019-12-16 | 2019-12-16 | Multi-nut quick dismounting device with variable wheelbase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911295332.6A CN110883728B (en) | 2019-12-16 | 2019-12-16 | Multi-nut quick dismounting device with variable wheelbase |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110883728A CN110883728A (en) | 2020-03-17 |
| CN110883728B true CN110883728B (en) | 2024-06-21 |
Family
ID=69752063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911295332.6A Active CN110883728B (en) | 2019-12-16 | 2019-12-16 | Multi-nut quick dismounting device with variable wheelbase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110883728B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211249838U (en) * | 2019-12-16 | 2020-08-14 | 佛山职业技术学院 | Multi-nut quick dismounting device with variable wheel base |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101204798B (en) * | 2006-12-19 | 2012-02-15 | 衡阳市锦泰工具有限公司 | Car board spring bolt special puller |
| US20130047790A1 (en) * | 2011-08-29 | 2013-02-28 | Verizon Patent And Licensing Inc. | Variable-span multi-blade screwdriver |
| CN103170940A (en) * | 2013-04-01 | 2013-06-26 | 国家电网公司 | Bevel gear intermediate shaft insulation spanner |
| CN205733757U (en) * | 2016-06-29 | 2016-11-30 | 北京恒信凯博科技有限公司 | A kind of torque gun that can automatically adjust spacing |
-
2019
- 2019-12-16 CN CN201911295332.6A patent/CN110883728B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211249838U (en) * | 2019-12-16 | 2020-08-14 | 佛山职业技术学院 | Multi-nut quick dismounting device with variable wheel base |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110883728A (en) | 2020-03-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110883728B (en) | Multi-nut quick dismounting device with variable wheelbase | |
| CN211249838U (en) | Multi-nut quick dismounting device with variable wheel base | |
| CN109926958B (en) | Quick labor-saving wrench for electric power overhaul | |
| TWI458575B (en) | Combined magazine, tool set and its assembly method | |
| CN202507237U (en) | Portable torque multiplier | |
| CN211163727U (en) | Multi-nut quick assembly disassembly device | |
| CN114346961A (en) | Radial screw mounting tool for inner wall of shell with large depth and small space | |
| CN112124349B (en) | Shock absorber installation and disassembly bracket | |
| CN102689260B (en) | Frosted working head and frosted tool by using frosted working head | |
| CN213438326U (en) | Ejector rod device for circumferential positioning of differential shell | |
| CN110788790A (en) | Multi-nut quick assembly disassembly device | |
| CN102689261B (en) | Frosted working head and frosted tool by using frosted working head | |
| CN112555669A (en) | Novel grease gun | |
| CN202507215U (en) | Portable quick wrench | |
| CN219113817U (en) | Fixed jig for crankshaft machining | |
| CN219094969U (en) | Novel grinding wheel wrench of surface grinder | |
| CN212601567U (en) | Tool for dismounting pneumatic corner built-in screw | |
| CN214356714U (en) | Spacing and quick replacement mechanism of electric aircraft group battery | |
| CN209737466U (en) | Make things convenient for hydraulic equipment accessory fixed mounting device | |
| CN220592730U (en) | Eccentric installation component of polishing machine | |
| CN115415560A (en) | Turning and milling composite electric spindle | |
| CN217271594U (en) | No peak isolator based on airborne platform | |
| CN209999103U (en) | Oil cleaner assembly and disassembly tools | |
| CN219837707U (en) | Detachable assembled metal wrench | |
| CN217036892U (en) | Liftable 360-degree rotary Z-axis shaft plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |