CN215980373U - Cap nut with anti-reverse device - Google Patents
Cap nut with anti-reverse device Download PDFInfo
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- CN215980373U CN215980373U CN202121433131.0U CN202121433131U CN215980373U CN 215980373 U CN215980373 U CN 215980373U CN 202121433131 U CN202121433131 U CN 202121433131U CN 215980373 U CN215980373 U CN 215980373U
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Abstract
The utility model relates to the technical field of fasteners, in particular to a cap nut with an anti-reverse device. The cap nut with the anti-reverse device comprises a nut body and a spring, wherein the nut body comprises a nut cap and a fastening part, the nut cap is elastically connected with the fastening part through the spring, the upper surface of the fastening part is provided with the anti-reverse device, the upper surface of the fastening part is provided with fastening through holes which are annularly arranged, the top surface in the groove is provided with a limiting groove, a limiting column is arranged between the limiting groove and the corresponding fastening through hole, the limiting column is controlled to translate downwards through the anti-reverse device, and the lower end of the limiting column is abutted against the inside of a fastening surface of a structural part or embedded into the structural part, so that the cap nut is prevented from reversing under the vibration condition; the outer annular surface of the fastening portion is provided with an external thread, the inner annular surface of the groove is provided with an internal thread, the internal thread of the groove is in threaded connection with the external thread of the fastening portion, the limiting column can be effectively locked, and the anti-reversion performance of the cap nut with the structure is further improved.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to a cap nut with an anti-reverse device.
Background
The cap-shaped nut comprises a nut body and a cap connected to the nut body, is suitable for places needing to cover the tail end of the screw thread of the screw and is commonly used on equipment needing to be connected with special media, and the arc-shaped top cover on the nut can prevent the part of the bolt extending out of the nut from damaging people or objects and simultaneously protect the screw from being damaged by foreign objects.
At present, cap-shaped nuts on the market are mostly composed of nut bodies with internal threads and caps integrally connected with the nut bodies, and when the cap-shaped nuts are used for fastening bolts on structural members in a vibration environment, the cap-shaped nuts are easy to reverse due to vibration force, so that the bolts on the structural members fall off, and safety accidents are caused.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: in order to solve the problems existing in the background technology, a cap nut with an anti-reverse device is provided, and the problem that when the cap nut on the market at present is mostly composed of a nut body with internal threads and a cap integrally connected with the nut body, and the cap nut is fastened on a bolt on a structural member in a vibration environment, the cap nut is easy to reverse due to vibration force, so that the bolt on the structural member falls off, and safety accidents are caused is solved.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a cap nut with prevent reverse device, includes nut main part and spring, the nut main part includes nut cap and fastening portion, the nut cap pass through spring and fastening portion elastic connection, the bottom of nut cap is provided with the column lug, the lower bottom surface of column lug is seted up flutedly, the upper surface of fastening portion is provided with prevents reverse device, the upper surface of fastening portion is close to the lateral surface and sets up the fastening through-hole of annular arrangement, spacing recess has been seted up to the position that the top surface corresponds fastening through-hole in the recess, spacing recess and corresponding fastening through-hole between be provided with spacing post, spacing post pass prevent reverse gear's gear mechanism and prevent reverse device plug-in connection.
The interior top surface of recess embeds there is the annular rotating block of being connected with the recess rotation, the lower bottom surface of annular rotating block and the last top surface fastening connection of spring, the middle part of fastening portion upper surface is provided with column locking portion, the upper surface of column locking portion and the lower bottom surface fastening connection of spring.
The anti-reverse device comprises an inner gear and a plurality of outer gears, the bottom of the inner gear is connected with the upper surface bearing of the fastening portion, the outer gears are located on the vertical axis of the fastening through holes at the corresponding positions and are connected with the upper surface bearing of the fastening portion, and the outer gears and the inner gears are in meshing transmission through gear teeth of the outer gears and tooth grooves of the inner gears.
The limiting device comprises an inner gear, a columnar locking part, an outer gear, a limiting column and a limiting column, wherein the inner gear is arranged in the inner gear, the columnar locking part is arranged in the outer gear, the outer ring surface of the limiting column is provided with an outer thread matched with the inner thread hole, and the bottom end of the limiting column is of a conical structure.
The cylindrical locking part is characterized in that a fastening threaded hole penetrating through the whole fastening part is formed inwards in the center of the upper surface of the cylindrical locking part, external threads are arranged on the outer ring surface of the fastening part, and internal threads are arranged on the inner ring surface of the groove.
And a smooth through hole with the diameter equal to that of the fastening threaded hole is formed in the middle of the annular rotating block towards the inside of the nut cap.
The utility model has the beneficial effects that:
(1) the cap nut with the anti-reverse device consists of a nut body and a spring, wherein the nut body comprises a nut cap and a fastening part, the nut cap is elastically connected with the fastening part through the spring, a columnar bump is arranged at the bottom end of the nut cap, a groove is formed in the lower bottom surface of the columnar bump, the anti-reverse device is arranged on the upper surface of the fastening part, fastening through holes which are annularly arranged are formed in the upper surface of the fastening part, which is close to the outer side surface, a limiting groove is formed in the position, corresponding to the fastening through holes, of the inner top surface of the groove, a limiting column is arranged between the limiting groove and the corresponding fastening through holes, the limiting column penetrates through a gear mechanism of the anti-reverse device to be in plug connection with the anti-reverse device, the upper end of the limiting column is fixedly connected with the upper end of the cover-shaped nut, and the lower end of the limiting column is fixedly connected with the fastening surface of the structural member;
(2) the central department of column locking portion upper surface inwards sets up the fastening screw hole that runs through whole fastening portion, is provided with the external screw thread on the outer anchor ring of fastening portion, is provided with the internal thread on the interior anchor ring of recess, and spacing post locking targets in place the back, pushes down the nut cap, and the internal thread of recess can effectively lock spacing post with the external screw thread threaded connection of fastening portion, further promotes the anti-reversion performance of this structure cap nut.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
Fig. 1 is a sectional view of the internal structure of the present invention.
FIG. 2 is a plan view of the anti-reverse apparatus of the present invention.
Fig. 3 is a schematic view of the structure of the fastening part of the present invention.
In the figure, 1, a spring, 2, a nut cap, 3, a fastening part, 4, a columnar bump, 5, a groove, 6, an anti-reverse device, 7, a fastening through hole, 8, a limiting groove, 9, a limiting column, 10, an annular rotating block, 11, a columnar locking part, 12, an internal gear, 13, an external gear, 14, an internal threaded hole, 15, a fastening threaded hole and 16, a smooth through hole are arranged.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Fig. 1, 2 and 3 show a cap nut with an anti-reverse device, which comprises a nut body and a spring 1, wherein the nut body comprises a nut cap 2 and a fastening part 3, the nut cap 2 is elastically connected with the fastening part 3 through the spring 1, a columnar bump 4 is arranged at the bottom end of the nut cap 2, a groove 5 is arranged on the lower bottom surface of the columnar bump 4, an anti-reverse device 6 is arranged on the upper surface of the fastening part 3, fastening through holes 7 which are annularly arranged are arranged on the upper surface of the fastening part 3 close to the outer side surface, a limiting groove 8 is arranged on the inner top surface of the groove 5 corresponding to the fastening through holes 7, a limiting column 9 is arranged between the limiting groove 8 and the corresponding fastening through holes 7, the limiting column 9 passes through a gear mechanism of the anti-reverse device 6 to be connected with the anti-reverse device 6 in an inserting manner, the limiting column 9 is controlled to move up and down through the anti-reverse device 6, the lower end of the limiting column 9 is abutted against the fastening surface of a fastening structure or is embedded into the fastening surface of the structure, thereby preventing the cap nut from reversing in the event of vibration.
Further, in order to realize the elastic connection between the nut cap 2 and the fastening portion 3, an annular rotating block 10 which is rotatably connected with the groove 5 is arranged in the inner top surface of the groove 5, the lower bottom surface of the annular rotating block 10 is fixedly connected with the upper top surface of the spring 1, a columnar locking portion 11 is arranged in the middle of the upper surface of the fastening portion 3, and the upper surface of the columnar locking portion 11 is fixedly connected with the lower bottom surface of the spring 1.
Further, in order to facilitate the operation of the cap nut in preventing reverse rotation, the reverse rotation preventing device 6 comprises an internal gear 12 and a plurality of external gears 13, wherein the bottom of the internal gear 12 is connected with the upper surface bearing of the fastening part 3, the external gears 13 are positioned on the vertical axis of the fastening through holes 7 at corresponding positions and are connected with the upper surface bearing of the fastening part 3, and the external gears 13 and the internal gear 12 are in meshing transmission with the tooth grooves of the internal gear 12 through the gear teeth of the external gears 13.
Further, for the convenience of operation when the cap nut of the structure is prevented from reversing, a through hole matched with the columnar locking portion 11 is formed in the middle of the inner gear 12, the inner gear 12 is in plug-in connection with the columnar locking portion 11 through the through hole, an inner threaded hole 14 is formed in the middle of the outer gear 13, an outer annular surface of the limiting column 9 is provided with an outer thread matched with the inner threaded hole 14, and the bottom end of the limiting column 9 is of a conical structure.
Further, in order to lock the position of the limit column 9 and further improve the anti-reverse performance of the cap nut, a fastening threaded hole 15 penetrating through the whole fastening part 3 is formed inwards in the center of the upper surface of the columnar locking part 11, an external thread is arranged on the outer annular surface of the fastening part 3, and an internal thread is arranged on the inner annular surface of the groove 5.
Example (b): when the cap nut with the structure is used in a matched manner with a bolt, the cap nut is screwed into the matched bolt through the fastening threaded hole 15 until the lower bottom surface of the fastening part 3 is in close contact with the locking surface of a fastened structural part, the inner gear 12 is rotated at the moment, the outer gear 13 is driven to rotate by the meshing transmission of the inner gear 12 and the outer gear 13, the limiting column 9 is continuously translated downwards by the threaded connection between the external thread of the limiting column 9 and the internal thread hole 14 until the conical end at the bottom of the limiting column 9 abuts against the fastening surface of the fastened structural part or enters the fixed hole formed in the fastening surface of the fastened structural part corresponding to the limiting column 9, the top surface of the limiting column 9 is flush with the upper surface of the outer gear 13 at the moment, the nut cap 2 is pressed downwards, the internal thread arranged on the inner ring surface of the groove 5 is screwed into the external thread on the outer ring surface of the fastening part 3, and the inner top surface of the groove 5 compresses the limiting column 9, the looseness of the limiting column 9 is avoided.
Further, in order to improve the applicability of the cap nut, the cap nut is matched with a plurality of bolts with the same diameter and different lengths, a smooth through hole 16 with the diameter equal to that of the fastening threaded hole 15 is formed in the nut cap towards the middle of the annular rotating block 10.
The cap nut with the anti-reverse device comprises a nut body and a spring 1, wherein the nut body comprises a nut cap 2 and a fastening part 3, the nut cap 2 is elastically connected with the fastening part 3 through the spring 1, a columnar bump 4 is arranged at the bottom end of the nut cap 2, a groove 5 is formed in the lower bottom surface of the columnar bump 4, an anti-reverse device 6 is arranged on the upper surface of the fastening part 3, fastening through holes 7 which are annularly arranged are formed in the upper surface of the fastening part 3 close to the outer side surface, a limiting groove 8 is formed in the position, corresponding to the fastening through holes 7, of the inner top surface of the groove 5, a limiting column 9 is arranged between the limiting groove 8 and the corresponding fastening through hole 7, the limiting column 9 penetrates through a gear mechanism of the anti-reverse device 6 to be connected with the anti-reverse device 6 in an inserting manner, the limiting column 9 is controlled to move up and down through the anti-reverse device 6, the lower end of the limiting column 9 abuts against the fastening surface of a structural part or is embedded into the fastening surface of the structural part, thereby preventing the cap nut from reversing under vibration conditions; the central department of the 11 upper surfaces of column locking portion inwards sets up the fastening screw hole 15 that runs through whole fastening portion 3, is provided with the external screw thread on the outer anchor ring of fastening portion 3, is provided with the internal thread on the interior anchor ring of recess 5, and spacing post 9 locks the back that targets in place, pushes down nut cap 2, and the internal thread of recess 5 can effectively lock spacing post 9 with the external screw thread threaded connection of fastening portion 3, further promotes the anti-reversion performance of this structure bell nut.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A cap nut with an anti-reverse device, comprising a nut body and a spring (1), characterized in that: the nut main part includes nut cap (2) and fastening portion (3), nut cap (2) pass through spring (1) and fastening portion (3) elastic connection, the bottom of nut cap (2) is provided with column lug (4), recess (5) are seted up to the lower bottom surface of column lug (4), the upper surface of fastening portion (3) is provided with prevents reverse device (6), the upper surface of fastening portion (3) is close to the lateral surface and has seted up fastening through-hole (7) that the annular was arranged, spacing recess (8) have been seted up to the position that the top surface corresponds fastening through-hole (7) in recess (5), be provided with between spacing recess (8) and the corresponding fastening through-hole (7) spacing post (9), spacing post (9) pass the gear mechanism of preventing reverse device (6) and prevent reverse device (6) plug-in connection.
2. The cap nut with an anti-reverse apparatus as claimed in claim 1, wherein: the interior top surface of recess (5) embeds there is annular turning block (10) of being connected with recess (5) rotation, the lower bottom surface of annular turning block (10) is connected with the last top surface fastening of spring (1), the middle part of fastening portion (3) upper surface is provided with column locking portion (11), the upper surface of column locking portion (11) and the lower bottom surface fastening connection of spring (1).
3. The cap nut with an anti-reverse apparatus as claimed in claim 1, wherein: anti-reverse device (6) include internal gear (12) and a plurality of external gear (13), the bottom of internal gear (12) is connected with the upper surface bearing of fastening portion (3), external gear (13) be located corresponding position fastening through-hole (7) vertical axis on line and be connected with the upper surface bearing of fastening portion (3), external gear (13) and internal gear (12) the tooth's socket meshing transmission of the teeth of a cogwheel of external gear (13) and internal gear (12).
4. A cap nut having an anti-reverse apparatus as claimed in claim 3, wherein: the middle part of the inner gear (12) is provided with a through hole matched with the columnar locking part (11), the inner gear (12) is connected with the columnar locking part (11) in an inserting mode through the through hole, the middle part of the outer gear (13) is provided with an inner threaded hole (14), an outer annular surface of the limiting column (9) is provided with an outer thread matched with the inner threaded hole (14), and the bottom end of the limiting column (9) is of a conical structure.
5. The cap nut with an anti-reverse apparatus as claimed in claim 2, wherein: the center of the upper surface of the columnar locking part (11) is inwards provided with a fastening threaded hole (15) penetrating through the whole fastening part (3), the outer ring surface of the fastening part (3) is provided with an external thread, and the inner ring surface of the groove (5) is provided with an internal thread.
6. The cap nut with an anti-reverse apparatus as claimed in claim 2, wherein: the middle part of the annular rotating block (10) is provided with a smooth through hole (16) with the diameter equal to that of the fastening threaded hole (15) towards the interior of the nut cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121433131.0U CN215980373U (en) | 2021-06-25 | 2021-06-25 | Cap nut with anti-reverse device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121433131.0U CN215980373U (en) | 2021-06-25 | 2021-06-25 | Cap nut with anti-reverse device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215980373U true CN215980373U (en) | 2022-03-08 |
Family
ID=80517363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121433131.0U Active CN215980373U (en) | 2021-06-25 | 2021-06-25 | Cap nut with anti-reverse device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215980373U (en) |
-
2021
- 2021-06-25 CN CN202121433131.0U patent/CN215980373U/en active Active
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