CN210599767U - Anti-drop's combination formula bolt - Google Patents
Anti-drop's combination formula bolt Download PDFInfo
- Publication number
- CN210599767U CN210599767U CN201921649107.3U CN201921649107U CN210599767U CN 210599767 U CN210599767 U CN 210599767U CN 201921649107 U CN201921649107 U CN 201921649107U CN 210599767 U CN210599767 U CN 210599767U
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- China
- Prior art keywords
- bolt
- thread
- shank
- sleeve
- drop
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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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of the machine part technique and specifically relates to an anti-drop's combination formula bolt, including the bolt head, the mid-mounting of bolt head bottom has the fixed block, the mid-mounting of fixed block bottom has the screw thread post, the bottom cover of fixed block is equipped with the shank of bolt, the inside of shank of bolt is vertical seted up with screw thread post assorted thread groove, the external screw thread has been seted up in the outside of shank of bolt, the bottom of bolt head install with shank of bolt assorted thread bush, vertical anti-skidding line has been seted up in the outside of thread bush, the middle part threaded connection of shank of bolt has fixed cover, the internal thread that meshes with the external screw thread mutually is seted up to the inside of fixed. The bolt can be prevented from loosening and falling off when being installed on a target object, and therefore the fastener is damaged.
Description
Technical Field
The utility model relates to a machine part technical field especially relates to an anti-drop's combination formula bolt.
Background
The bolt is a cylindrical threaded fastener with a nut. The fastener is composed of a head and a screw, needs to be matched with a nut and is used for fastening and connecting two parts with through holes, and a bolt is usually used as a mechanical part and is a relatively common connecting fastener.
After current bolt and nut cooperation are used to fix certain object, through a period of time, can produce between bolt and the nut not hard up thereby cause to drop to the space appears in the connection between the messenger object, thereby the object that makes the fastening appears damaging when experiencing certain power, so propose an anti-drop's combination formula bolt and solve the problem that above-mentioned provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art, and providing an anti-drop combined bolt, which prevents the bolt from dropping after being fastened.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an anti-drop's combination formula bolt, includes the bolt head, the mid-mounting of bolt head bottom has the fixed block, the mid-mounting of fixed block bottom has the screw thread post, the bottom cover of fixed block is equipped with the shank of bolt, the inside vertical seting up of shank of bolt with screw thread post assorted thread groove, the external screw thread has been seted up in the outside of shank of bolt, the bottom of bolt head install with shank of bolt assorted thread bush, vertical anti-skidding line has been seted up in the outside of thread bush, the middle part threaded connection of shank of bolt has fixed cover, the inside of fixed cover is seted up with the internal thread that the external screw thread meshed, the antiskid cover of cup jointing in the thread bush outside is installed on the top of.
Preferably, the inside of the thread groove and the outside of the thread column are vertically provided with six anti-slip grooves distributed in a circular array.
Preferably, the bottom of the fixing sleeve is provided with a curled skirt, and the cross section of the skirt is in a regular hexagon shape.
Preferably, the number of the anti-skid threads is not less than twenty, and each anti-skid thread is arranged on the outer side of the threaded sleeve in a circular array.
Preferably, the outer side of the fixing block is in threaded connection with an inner cavity at the top of the bolt rod.
Preferably, the external thread on the bolt rod and the thread on the threaded column are screwed in the same direction.
The utility model provides an anti-drop's combination formula bolt, beneficial effect lies in: when in use, the bolt bar, the fixed sleeve and the antiskid sleeve are firstly assembled, the fixed sleeve is sleeved on the bolt bar and is in combined connection with the external thread arranged on the outer side of the bolt bar through the internal thread arranged in the fixed sleeve, then the combined bolt is inserted into the hole to be assembled, the thread column is connected in the thread groove arranged on the bolt bar, the thread column is completely combined and connected with the thread groove by screwing the bolt head, the bolt bar and the fixed sleeve can be continuously screwed in by continuously screwing the bolt head, so that the fixed sleeve and the bolt bar achieve the purpose of fastening, after the fixed sleeve and the bolt bar are fastened, the antiskid sleeve moves to the outer side of the thread sleeve, the top end of the antiskid sleeve and the thread sleeve are clamped through a specific tool, the top end of the antiskid sleeve forms a latch and is meshed with the antiskid thread on the thread sleeve, so that the fixed sleeve can be prevented from sliding on the bolt bar, the bolt can be prevented from falling off after being installed, sliding between threads can be avoided under the condition of bearing certain force, and the bolt can be prevented from loosening and falling off when being installed on a target object, so that the fastener is damaged.
Drawings
Fig. 1 is a schematic structural view of an anti-drop combined bolt provided by the present invention;
fig. 2 is a schematic structural view of an external portion of an anti-drop combined bolt provided by the present invention;
fig. 3 is the utility model provides an anti-drop's combination formula bolt screw post and connection structure sketch map of bolt pole.
In the figure: the bolt comprises a bolt head 1, a fixed block 2, a threaded column 3, a bolt rod 4, a threaded groove 5, internal threads 6, a fixed sleeve 7, an anti-skidding sleeve 8, a threaded sleeve 9, external threads 10, an anti-skidding groove 11 and anti-skidding threads 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, an anti-drop combined bolt comprises a bolt head 1, wherein a fixed block 2 is installed in the middle of the bottom end of the bolt head 1, a threaded column 3 is installed in the middle of the bottom end of the fixed block 2, a bolt rod 4 is sleeved at the bottom of the fixed block 2, the outer side of the fixed block 2 is in threaded connection with an inner cavity in the top of the bolt rod 4, a threaded groove 5 matched with the threaded column 3 is vertically formed in the bolt rod 4, and the bolt head 1 and the bolt rod 4 can be combined in advance through advanced matching of the threaded column 3 and the threaded groove 5.
The anti-slip groove 11 which is distributed in a circular array is vertically arranged inside the thread groove 5 and outside the thread column 3, the number of the anti-slip groove 11 is six, the anti-slip groove 11 can prevent the relative rotation between the thread column 3 and the thread groove 5 due to vibration to the maximum extent after connection is completed, so that the possibility of falling off is avoided, the outer side of the bolt rod 4 is provided with an outer thread 10, the screwing direction of the outer thread 10 on the bolt rod 4 is the same as that of the thread on the thread column 3, the screwing direction of the two threads is the same so as to avoid relative sliding during installation, the bottom of the bolt head 1 is provided with a thread sleeve 9 which is matched with the bolt rod 4, after the bolt rod 4 is connected on the thread column 3, the top of the bolt rod 4 can be matched with the thread sleeve 9 by continuously screwing the bolt head 1, and the bolt rod 4 is further fixed with the thread column 3, thereby enabling it to remain stable for a long period of time.
The outer side of the threaded sleeve 9 is provided with vertical anti-slip threads 12, the number of the anti-slip threads 12 is not less than twenty, each anti-slip thread 12 is arranged on the outer side of the threaded sleeve 9 in a circular array mode, the middle part of the bolt rod 4 is in threaded connection with a fixing sleeve 7, the bottom of the fixing sleeve 7 is provided with a curled skirt edge, the cross section of the skirt edge is in a regular hexagon shape, the inside of the fixing sleeve 7 is provided with an internal thread 6 meshed with an external thread 10, the internal thread 6 arranged inside the fixing sleeve 7 is meshed with the external thread 10 arranged on the outer side of the bolt rod 4 when the bolt is installed, so that the fixing sleeve 7 is convenient to stably install the bolt rod 4, the top end of the fixing sleeve 7 is provided with an anti-slip sleeve 8 sleeved on the outer side of the threaded sleeve 9, after the fixing sleeve 7 is completely combined with the bolt rod 4, the top end of the anti, the top end of the bolt rod is deformed to form a latch, wherein the latch is matched with the anti-slip threads 12 arranged on the thread sleeve 9, so that the fixed sleeve 7 can be prevented from sliding relatively on the bolt rod 4.
The working principle is as follows: when in use, the bolt rod 4, the fixed sleeve 7 and the anti-skid sleeve 8 are firstly assembled, the fixed sleeve 7 is sleeved on the bolt rod 4, the internal thread 6 arranged in the fixed sleeve 7 is combined and connected with the external thread 10 arranged on the outer side of the bolt rod 4, then the combined bolt is inserted into a hole to be assembled, the threaded column 3 is connected in the threaded groove 5 arranged on the bolt rod 4, the threaded column 3 is completely combined and connected with the threaded groove 5 by screwing the bolt head 1, the bolt rod 4 and the fixed sleeve 7 can be continuously screwed in by continuously screwing the bolt head 1, so that the fixed sleeve 7 and the bolt rod 4 achieve the fastening purpose, after the fixed sleeve 7 and the bolt rod 4 are fastened, the anti-skid sleeve 8 is advanced to the outer side of the threaded sleeve 9, the top end of the anti-skid sleeve 8 is clamped with the threaded sleeve 9 by a specific tool, the top end of the anti-skid sleeve 8 forms a latch and is meshed with the anti-skid lines 12 on the threaded sleeve 9, the fixing sleeve 7 can be prevented from sliding on the bolt shank 4, and the bolt can be prevented from falling off after being mounted.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an anti-drop's combination formula bolt, includes bolt head (1), its characterized in that, the mid-mounting of bolt head (1) bottom has fixed block (2), the mid-mounting of fixed block (2) bottom has screw thread post (3), the bottom cover of fixed block (2) is equipped with shank of bolt (4), the inside of shank of bolt (4) is vertical offer with screw thread post (3) assorted thread groove (5), external screw thread (10) have been seted up in the outside of shank of bolt (4), the bottom of bolt head (1) is installed with shank of bolt (4) assorted thread bush (9), vertical anti-skidding line (12) have been seted up in the outside of thread bush (9), the middle part threaded connection of shank of bolt (4) has fixed cover (7), the inside of fixed cover (7) is seted up with internal thread (6) that external screw thread (10) meshed, the top end of the fixed sleeve (7) is provided with an anti-skid sleeve (8) which is sleeved outside the threaded sleeve (9).
2. The anti-drop combined bolt according to claim 1, characterized in that the inside of the thread groove (5) and the outside of the thread column (3) are vertically provided with anti-slip grooves (11) distributed in a circular array, and the number of the anti-slip grooves (11) is six.
3. A drop-proof assembling type bolt according to claim 1, wherein a rolled skirt is installed at the bottom of the fixing sleeve (7), and the cross-sectional shape of the skirt is a regular hexagon.
4. A drop-proof modular bolt according to claim 1, characterised in that the number of said non-slip threads (12) is not less than twenty, each of said non-slip threads (12) being arranged in a circular array on the outside of the threaded sleeve (9).
5. The fall-off prevention assembling type bolt according to claim 1, wherein the outer side of the fixing block (2) is screw-coupled with the inner cavity of the top of the bolt shank (4).
6. A drop-proof modular bolt according to claim 1, characterised in that the external thread 10 on the bolt shank (4) is threaded in the same direction as the thread on the threaded stud (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921649107.3U CN210599767U (en) | 2019-09-30 | 2019-09-30 | Anti-drop's combination formula bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921649107.3U CN210599767U (en) | 2019-09-30 | 2019-09-30 | Anti-drop's combination formula bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210599767U true CN210599767U (en) | 2020-05-22 |
Family
ID=70695259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921649107.3U Expired - Fee Related CN210599767U (en) | 2019-09-30 | 2019-09-30 | Anti-drop's combination formula bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210599767U (en) |
-
2019
- 2019-09-30 CN CN201921649107.3U patent/CN210599767U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200522 Termination date: 20200930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |