CN113752198B - Double-nut sleeve - Google Patents
Double-nut sleeve Download PDFInfo
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- CN113752198B CN113752198B CN202111051226.0A CN202111051226A CN113752198B CN 113752198 B CN113752198 B CN 113752198B CN 202111051226 A CN202111051226 A CN 202111051226A CN 113752198 B CN113752198 B CN 113752198B
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- sleeve
- ball
- nut
- inner sleeve
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/02—Spanners; Wrenches with rigid jaws
- B25B13/06—Spanners; Wrenches with rigid jaws of socket type
-
- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to a double nut sleeve, comprising: one end of the inner sleeve is provided with a first sleeving part for sleeving the outer nut; an outer sleeve sleeved outside the inner sleeve, wherein one end of the outer sleeve is provided with a second sleeving part for sleeving an inner nut; and the locking mechanism locks and unlocks the outer sleeve and the inner sleeve. According to the double-nut sleeve, the inner nut is sleeved by the second sleeve joint part, the outer nut is sleeved by the first sleeve joint part, and the sizes of the first sleeve joint part and the second sleeve joint part can be the same or different, so that the double-nut structure with different sizes of the inner nut and the outer nut is met, the locking and unlocking states of the inner sleeve and the outer sleeve are adjusted through the locking mechanism, and the inner nut and the outer nut can be respectively operated under the condition that a tool is not replaced.
Description
Technical Field
The invention relates to the field of nut installation, in particular to a double-nut sleeve.
Background
The double-nut structure is a common anti-loosening structure, generally has torque requirements on the tightening of the double nuts, currently, torque wrenches are commonly adopted for tightening the nuts, and in the actual operation process, space is possibly limited, so that no wrench operation space exists, and sleeve transition is needed to be added under the condition.
However, the sleeve on the market at present is generally designed according to the size of a single nut, and a double-nut structure with different sizes of an outer nut and an inner nut exists at present.
Therefore, there is a need to design a new double nut adapter sleeve to overcome the above-mentioned problems.
Disclosure of Invention
The embodiment of the invention provides a double-nut sleeve, which aims to solve the technical problems that a common sleeve in the related art cannot adapt to double-nut structures with different inner and outer nut sizes, an adapter is additionally required to be added during operation, and the screwing and unscrewing efficiency is reduced.
In a first aspect, there is provided a double nut sleeve comprising: one end of the inner sleeve is provided with a first sleeving part for sleeving the outer nut; an outer sleeve sleeved outside the inner sleeve, wherein one end of the outer sleeve is provided with a second sleeving part for sleeving an inner nut; and the locking mechanism locks and unlocks the outer sleeve and the inner sleeve.
In some embodiments, the locking mechanism comprises: the ejector rod is slidably arranged in the inner sleeve, and an ejector rod groove is formed in the ejector rod; a ball mounted in the inner sleeve; when the ball bearing is propped against the outer sleeve, the inner sleeve and the outer sleeve are locked; when the ejector rod is pushed towards the direction close to the second sleeving part, the balls enter the ejector rod groove, and the inner sleeve and the outer sleeve are unlocked.
In some embodiments, the outer sleeve is provided with a limit groove corresponding to the ball, and when the inner sleeve is locked with the outer sleeve, the ball part enters the limit groove.
In some embodiments, the inner sleeve has a ball groove for receiving the ball; the locking mechanism further includes: the ball groove is formed in the outer side of the ball body, the ball groove is provided with a ball hole, and the ball groove is formed in the ball groove.
In some embodiments, the locking mechanism further comprises: the second limiting plug is arranged in the inner sleeve; and one end of the return spring is arranged on the second limiting plug, the other end of the return spring is in contact with the ejector rod, and the ejector rod is driven to return through the return spring.
In some embodiments, one side of the ejector rod, which is close to the first sleeving part, is provided with a first rod part, the other side of the ejector rod is provided with a second rod part, and the outer diameter of the first rod part is larger than that of the second rod part; the inner sleeve is provided with an ejector rod limiting part, the ejector rod limiting part prevents the first rod part from sliding to the side far away from the first sleeve joint part, and allows the second rod part to slide to the side far away from the first sleeve joint part.
In some embodiments, the inner sleeve has an inner rotation limiting portion and the outer sleeve has an outer rotation limiting portion corresponding to the inner rotation limiting portion, the inner rotation limiting portion cooperating with the outer rotation limiting portion to limit relative rotation of the inner sleeve and the outer sleeve in a circumferential direction.
In some embodiments, the first socket portion and the second socket portion are both in a claw structure.
In some embodiments, the inner sleeve is provided with a tightening portion located at an end of the inner sleeve remote from the first socket portion.
In some embodiments, the inner sleeve has a maximum outer diameter that is smaller than a minimum inner diameter of the outer sleeve.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a double-nut sleeve, which comprises an inner sleeve and an outer sleeve, wherein the inner sleeve is provided with a first sleeving part for sleeving an outer nut, the outer sleeve is provided with a second sleeving part for sleeving an inner nut, the sizes of the first sleeving part and the second sleeving part can be the same or different, the sizes of the first sleeving part and the second sleeving part can be respectively designed according to the sizes of the inner nut and the outer nut, the inner sleeve and the outer sleeve are adjusted to be locked and unlocked through a locking mechanism, and the inner nut and the outer nut are respectively operated under the condition that tools are not replaced, so that when the double-nut structure is different in size, the sleeve does not need to be replaced when the unscrewed nuts are screwed, the inner nut and the outer nut can be operated through the sleeve provided by the embodiment of the invention, and the screwing and unscrewing efficiency of the double-nut is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a double nut sleeve according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of a portion of the cross-section of FIG. 1 provided by an embodiment of the present invention;
fig. 3 is a schematic perspective view of an inner sleeve of a double nut sleeve according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of an outer sleeve of a double nut sleeve according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a ejector pin limiting portion according to an embodiment of the present invention.
In the figure:
1. an inner sleeve; 11. a first socket part; 12. a ball groove; 13. an inner rotation limiting part; 14. a push rod limiting part; 15. a tightening part;
2. an outer sleeve; 21. a second socket joint part; 22. a limit groove; 23. an outer rotation limiting part;
3. a locking mechanism; 31. a push rod; 310. a first lever portion; 311. a push rod groove; 312. a second lever portion; 32. a ball; 33. the second limiting plug; 34. a return spring; 35. and a first limiting plug.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a double-nut sleeve, which can solve the technical problems that a common sleeve in the related art cannot adapt to double-nut structures with different inner and outer nut sizes, an adapter is additionally required to be added during operation, and the double-nut tightening and loosening efficiency is reduced.
Referring to fig. 1, a double nut sleeve according to an embodiment of the present invention may include: one end of the inner sleeve 1 is provided with a first sleeving part 11 for sleeving an outer nut; the outer sleeve 2 is sleeved outside the inner sleeve 1, and one end of the outer sleeve 2 is provided with a second sleeved part 21 for sleeving an inner nut, that is, the sizes of the inner sleeve 1 of the first sleeved part 11 and the second sleeved part 21 can be the same or different, so that a double-nut structure with the same or different sizes of the inner nut and the outer nut can be satisfied; the locking mechanism 3 locks and unlocks the outer sleeve 2 and the inner sleeve 1, in this embodiment, the locking mechanism 3 is installed inside the inner sleeve 1, in other embodiments, the locking mechanism 3 may be installed between the inner sleeve 1 and the outer sleeve 2, or installed outside the outer sleeve 2, that is, the inner sleeve 1 and the outer sleeve 2 are completely synchronous when in locking, the inner sleeve 1 or the outer sleeve 2 can be synchronously moved by applying force to either the inner sleeve 1 or the outer sleeve 2, and in the unlocking state, the externally applied force only acts on one of the inner sleeve 1 or the outer sleeve 2, that is, the first sleeve part 11 and the second sleeve part 21 which can be the same or different in size adapt to different sizes of the inner nut and the outer nut, the locking mechanism 3 switches the locking state and the unlocking state, and a wrench or other tool can apply force to simultaneously screw or unscrew one of the inner sleeve 1 and the outer sleeve 2 in the locking state, and apply force to screw or unscrew the other of the nuts in the double nuts in the unlocking state, thereby satisfying the double nuts with different sizes of the inner nut and the outer nut.
Referring to fig. 1 and 2, in this embodiment, the locking mechanism 3 may include a push rod 31, where the push rod 31 is slidably mounted in the inner sleeve 1, the push rod 31 is provided with a push rod groove 311, the push rod groove 311 may be in a trapezoid structure, a long bottom edge of the trapezoid is an opening of the groove, and one side edge of the trapezoid, which is close to the first socket joint portion 11, may be obliquely disposed, and the push rod 31 may slide in the inner sleeve 1; a ball 32, the ball 32 being mounted in the inner sleeve 1; when the ball 32 is abutted against the outer sleeve 2, the inner sleeve 1 is locked with the outer sleeve 2; the balls 32 are in contact with the ejector pins 31, in this embodiment the ejector pins 31 and balls 32 are mounted inside the inner sleeve 1, in other embodiments the ejector pins 31 may be arranged outside the outer sleeve 2 or between the inner sleeve 1 and the outer sleeve 2, depending on the actual situation; the sliding of the ejector rod 31 on the inner sleeve 1 is used for adjusting the position relationship between the ball 32 and the ejector rod groove 311, whether the ball 32 is in contact with the outer sleeve 2 or not is adjusted by arranging the ejector rod groove 311, wherein the side edge of the ejector rod groove 311 which is obliquely arranged can facilitate the ball 32 to slide into the ejector rod groove 311, in the embodiment, the locking mechanism 3 locks the inner sleeve 1 and the outer sleeve 2 through the ball 32, in other embodiments, the locking mechanism can also be a buckle structure, a lock tongue structure or other structures capable of realizing locking and unlocking, that is, the ball 32 can always abut against the ejector rod 31, when the ejector rod 31 is pushed towards the direction close to the second sleeving part 21, the ball 32 can enter the ejector rod groove 311, so that the ball 32 is separated from the outer sleeve 2, the unlocking of the inner sleeve 1 and the outer sleeve 2 is realized, and when the ejector rod 31 is reset under the action of the reset spring 34, the ball 32 rolls out of the ejector rod groove 311, and finally the ball 32 can abut against the outer sleeve 2 through the outer sleeve 2 by adjusting the position of the outer sleeve 2.
Referring to fig. 4, further, the outer sleeve 2 may be provided with a limit groove 22 corresponding to the balls 32, the number of the limit grooves 22 may be greater than or equal to the number of the balls 32, in this embodiment, the limit groove 22 is a hemispherical groove, when the inner sleeve 1 and the outer sleeve 2 are locked, the balls 32 partially enter the limit groove 22, in this embodiment, the locking of the inner sleeve 1 and the outer sleeve 2 is achieved by matching the limit groove 22 on the outer sleeve 2 with the balls 32 mounted on the inner sleeve 1, in other embodiments, the locking of the inner sleeve 1 and the outer sleeve 2 may also be achieved by matching the limit groove 22 located on the inner sleeve 1 with the balls 32 mounted on the outer sleeve 2, in this embodiment, the limit groove 22 is specially provided on the outer sleeve 2, the locking effect of the inner sleeve 1 and the outer sleeve 2 is guaranteed to a greater extent, and the occurrence of loose locking is avoided.
Referring to fig. 2, the inner sleeve 1 preferably has a ball groove 12 for receiving a ball 32; the locking mechanism 3 may further include: the first limiting plug 35 is installed on the outer side of the ball groove 12, that is to say, the first limiting plug 35 is installed in the ball groove 12 and is located at a position relatively close to the outer side of the ball groove 12, threads can be formed on the surfaces of the ball groove 12 and the first limiting plug 35, the first limiting plug 35 is installed through threads, a through hole can be formed in the first limiting plug 35, the inner diameter of the outer side of the through hole can be smaller than the diameter of the ball 32, that is to say, the ball 32 is installed in the ball groove 12 of the inner sleeve 1, the first limiting plug 35 is provided with a through hole with the inner diameter smaller than the diameter of the ball 32, so that the ball 32 can be partially exposed out of the inner sleeve 1, and cannot fall off from the ball groove 12.
Referring to fig. 2, the locking mechanism 3 may preferably further include: the second limiting plug 33 is installed inside the inner sleeve 1, specifically, a threaded through hole allowing the ejector rod 31 to pass through can be formed inside the inner sleeve 1, and the second limiting plug 33 is installed by forming corresponding threads on the second limiting plug 33; and a return spring 34, one end of which is installed in the second limit plug 33, the other end is in contact with the ejector rod 31, the ejector rod 31 is driven to return by the return spring 34, when the return spring 34 is installed, the ejector rod 31 can be installed first, then the return spring 34 is installed in the inner sleeve 1, and finally the second limit plug 33 is installed to fix the left side of the return spring 34, that is, the ball 32 is not located in the ejector rod groove 311 under the condition that no external force is applied, and the ejector rod 31 can return under the action of the return spring 34.
Referring to fig. 2, preferably, the jack 31 may be provided with a first rod portion 310 at one side near the first socket portion 11 and a second rod portion 312 at the other side, and the outer diameter of the first rod portion 310 may be greater than the outer diameter of the second rod portion 312; the inner sleeve 1 may have a push rod limiting portion 14, the push rod limiting portion 14 prevents the first rod portion 310 from sliding to a side far from the first sleeve joint portion 11, and allows the second rod portion 312 to slide to a side far from the first sleeve joint portion 11, in this embodiment, the first rod portion 310 and the second rod portion 312 are disposed at two sides of the push rod groove 311, in other embodiments, the position of the push rod groove 311 may be disposed inside the first rod portion 310 or the second rod portion 312, that is, when the push rod 31 is installed, one end of the push rod 31 close to the second rod portion 312 extends into the inner sleeve 1 from a side of the inner sleeve 1 having the first sleeve joint portion 11, the second rod portion 312 passes through the push rod limiting portion 14, the first rod portion 310 is prevented from passing under the limitation of the push rod limiting portion 14, and the movable range of the first rod portion 310 is limited to a section of the push rod 14 under the cooperation of the reset spring 34, so as to avoid that the push rod 31 slides out of the inner sleeve 1, in this embodiment, the limit portion 14 and the ball groove 12 are disposed near the inner sleeve 1, and the opposite to the limit groove 12 is disposed at a position of the opposite to the inner sleeve 1, and the other end is prevented from passing through the limit hole 34, and the diameter is larger than the limit hole 34.
Referring to fig. 3 and 4, preferably, the inner sleeve 1 may have an inner rotation limiting portion 13, the outer sleeve 2 may have an outer rotation limiting portion 23 corresponding to the inner rotation limiting portion 13, the inner rotation limiting portion 13 and the outer rotation limiting portion 23 cooperate to limit the relative rotation of the inner sleeve 1 and the outer sleeve 2 in the circumferential direction, in this embodiment, the inner rotation limiting portion 13 and the outer rotation limiting portion 23 cooperate through an inner hexagonal structure and an outer hexagonal structure to ensure the circumferential synchronous rotation of the inner sleeve 1 and the outer sleeve 2, in other embodiments, the inner rotation limiting portion 13 and the outer rotation limiting portion 23 cooperate with other regular polygons, the inner rotation limiting portion 13 and the outer rotation limiting portion 23 are arranged at the locking position of the ball 32, in other embodiments, the inner rotation limiting portion 13 and the outer rotation limiting portion 23 are arranged at other positions, the alignment steps of the ball 32 and the outer sleeve 2 during locking are reduced, further locking is smoother, and meanwhile reliability during locking is increased.
Referring to fig. 3 and 4, preferably, the first sleeving part 11 and the second sleeving part 21 may be both in key claw structures, the key claw structures are designed for such nuts, the free ends of the key claw structures are provided with a plurality of protruding claws matched with the key grooves, the protruding claws are arranged at intervals, the protruding claws extend into the key grooves in the use process to firmly grasp the nuts, in other embodiments, the first sleeving part 11 and the second sleeving part 21 may be other structures to adapt to various types of nuts, such as for common hexagonal nuts, the first sleeving part 11 and the second sleeving part 21 may be arranged into inner hexagonal structures, the key claw structures may be adapted to nuts with the key grooves, and the key claw structures are sleeved more tightly and more reliably when the nuts with the key grooves are sleeved.
Referring to fig. 3, preferably, the inner sleeve 1 may be provided with a tightening part 15, the tightening part 15 is located at one end of the inner sleeve 1 far away from the first sleeve joint part 11, the tightening part 15 is used for applying force to the sleeve by tools such as a wrench, in this embodiment, the tightening part 15 is disposed on the inner sleeve 1, the outside world can control the inner sleeve 1 or control two sleeves simultaneously by applying force to the inner sleeve 1, in other embodiments, the tightening part 15 may be disposed at one end of the outer sleeve 2 far away from the second sleeve joint part 21, the outside world can control the outer sleeve 2 or control two sleeves simultaneously by applying force to the outer sleeve 2, and the provision of the tightening part 15 facilitates the use of the sleeve by tools such as a wrench.
Referring to fig. 1 and 2, the maximum outer diameter of the inner sleeve 1 is preferably smaller than the minimum inner diameter of the outer sleeve 2, that is, the outer sleeve 2 can be detached from the inner sleeve 1, which facilitates subsequent maintenance.
The principle of the double nut sleeve provided by the embodiment of the invention is as follows:
in the process of screwing the double nut, the second sleeve joint part 21 is sleeved on the inner nut, if the double nut sleeve is in an unlocking state, the locking operation is performed firstly, specifically in the example, firstly, the inner limit rotating part 13 is aligned with the inner and outer hexagonal structures of the outer limit rotating part 23, meanwhile, the ejector rod 31 is pushed to enable the balls 32 to enter the ejector rod groove 311, then the inner sleeve 1 is pushed to enable the balls 32 to align with the limit groove 22, finally, the application of external force to the ejector rod 31 is stopped, the ejector rod 31 is reset under the action of the reset spring 34, the balls 32 roll out of the ejector rod groove 311, a part of the balls 32 enters the limit groove 22 and is propped against the outer sleeve 2, the locking action of the inner sleeve 1 and the outer sleeve 2 is realized, after the locking, the screwing part 15 is sleeved by a tool such as a wrench, the outer nut is screwed down, after the outer nut is screwed down, the inner sleeve 1 and the outer sleeve 2 are unlocked, in this embodiment, the unlocking step and the locking step are operated in reverse order, after the outer nut is sleeved on the first sleeve joint part 11 of the inner sleeve 1, the screwing part 15 is sleeved by a tool such as a wrench, the inner nut is screwed down, the double-nut screwing down process is completed, and the double-nut screwing down and screwing down reverse order operation can be completed, so that when the double-nut structure is in the case of different sizes of the inner nut and the outer nut, the sleeve does not need to be replaced when the nuts are screwed down or unscrewed, the inner nut and the outer nut can be operated through the sleeve provided by the embodiment of the invention, and the screwing down and unscrewing efficiency of the double nut is improved.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between 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.
It should be noted that in the present invention, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A double nut sleeve, comprising:
one end of the inner sleeve (1) is provided with a first sleeving part (11) for sleeving the outer nut;
an outer sleeve (2) sleeved outside the inner sleeve (1), wherein one end of the outer sleeve (2) is provided with a second sleeving part (21) for sleeving an inner nut;
the locking mechanism (3) locks and unlocks the outer sleeve (2) and the inner sleeve (1);
the locking mechanism (3) comprises:
the ejector rod (31), the ejector rod (31) is slidably arranged in the inner sleeve (1), and the ejector rod (31) is provided with an ejector rod groove (311);
a ball (32), the ball (32) being mounted in the inner sleeve (1);
when the ball (32) is propped against the outer sleeve (2), the inner sleeve (1) is locked with the outer sleeve (2);
when the ejector rod (31) is pushed towards the direction approaching the second sleeving part (21), the balls (32) enter the ejector rod groove (311), and the inner sleeve (1) and the outer sleeve (2) are unlocked;
the inner sleeve (1) has a ball groove (12) for receiving the ball (32);
the locking mechanism (3) further comprises: the ball groove (12) is formed in the ball seat, the ball groove is provided with a ball seat, the ball seat is provided with a ball groove (12) and a ball hole (32) which is arranged in the ball seat, and the ball groove is provided with a first limiting plug (35), wherein the first limiting plug (35) is arranged on the outer side of the ball groove (12), and the inner diameter of the outer side of the ball groove is smaller than the diameter of the ball (32).
2. The double nut sleeve as defined in claim 1, wherein:
the outer sleeve (2) is provided with a limit groove (22) corresponding to the ball (32), and when the inner sleeve (1) is locked with the outer sleeve (2), the ball (32) partially enters the limit groove (22).
3. A double nut sleeve as claimed in claim 1, characterized in that said locking mechanism (3) further comprises:
a second stopper (33) mounted inside the inner tube (1);
and a return spring (34) one end of which is mounted in the second limit plug (33) and the other end of which is in contact with the ejector rod (31), wherein the ejector rod (31) is driven to return by the return spring (34).
4. A double nut sleeve as defined in claim 3, being characterized by:
one side of the ejector rod (31) close to the first sleeving part (11) is provided with a first rod part (310), the other side of the ejector rod is provided with a second rod part (312), and the outer diameter of the first rod part (310) is larger than that of the second rod part (312);
the inner sleeve (1) is provided with a push rod limiting part (14), the push rod limiting part (14) prevents the first rod part (310) from sliding to the side far away from the first sleeve joint part (11), and allows the second rod part (312) to slide to the side far away from the first sleeve joint part (11).
5. The double nut sleeve as defined in claim 1, wherein:
the inner sleeve (1) is provided with an inner rotation limiting part (13), the outer sleeve (2) is provided with an outer rotation limiting part (23) corresponding to the inner rotation limiting part (13), the inner rotation limiting part (13) is matched with the outer rotation limiting part (23), and the inner sleeve (1) and the outer sleeve (2) are limited to rotate relatively in the circumferential direction.
6. The double nut sleeve as defined in claim 1, wherein:
the first sleeving part (11) and the second sleeving part (21) are of a key claw structure.
7. The double nut sleeve as defined in claim 1, wherein:
the inner sleeve (1) is provided with a tightening part (15), and the tightening part (15) is positioned at one end of the inner sleeve (1) far away from the first sleeving part (11).
8. The double nut sleeve as defined in claim 1, wherein:
the maximum outer diameter of the inner sleeve (1) is smaller than the minimum inner diameter of the outer sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111051226.0A CN113752198B (en) | 2021-09-08 | 2021-09-08 | Double-nut sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111051226.0A CN113752198B (en) | 2021-09-08 | 2021-09-08 | Double-nut sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN113752198A CN113752198A (en) | 2021-12-07 |
| CN113752198B true CN113752198B (en) | 2023-06-30 |
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| CN202111051226.0A Active CN113752198B (en) | 2021-09-08 | 2021-09-08 | Double-nut sleeve |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2564473B2 (en) * | 1994-11-11 | 1996-12-18 | 東日本旅客鉄道株式会社 | Double nut socket |
| US6598500B1 (en) * | 2001-08-20 | 2003-07-29 | Honda Giken Kogyo Kabushiki Kaisha | Double-nut tool and method of setting the toe angle of a vehicle wheel |
| JP2006167894A (en) * | 2004-12-20 | 2006-06-29 | Eco Tool:Kk | Double nut fastening tool |
| CN201505873U (en) * | 2009-10-22 | 2010-06-16 | 李贵生 | Double nut socket wrench |
| JP4973895B2 (en) * | 2010-12-01 | 2012-07-11 | 正昭 相馬 | Multi-stage socket for rotating bolts and nuts |
| CN203343962U (en) * | 2013-04-02 | 2013-12-18 | 河北中农博远农业装备有限公司 | Installation tool for double-end stud |
| CN104165553B (en) * | 2014-09-02 | 2016-07-06 | 湖北航天技术研究院总体设计所 | A kind of locking solution latch mechanism for folding wings |
| CN204263059U (en) * | 2014-12-02 | 2015-04-15 | 山东浩信机械有限公司 | A kind of spanner assembly |
| CN109773470A (en) * | 2019-01-22 | 2019-05-21 | 龙口市汇金达智能设备有限公司 | A kind of double nut automatic tightening head assembly and tightening mechanism |
| CN210908886U (en) * | 2019-09-10 | 2020-07-03 | 上海天永智能装备股份有限公司 | Screw up subassembly and control its power component |
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2021
- 2021-09-08 CN CN202111051226.0A patent/CN113752198B/en active Active
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| CN113752198A (en) | 2021-12-07 |
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