CN202851592U - Looseness-prevention bolt - Google Patents
Looseness-prevention bolt Download PDFInfo
- Publication number
- CN202851592U CN202851592U CN 201220497162 CN201220497162U CN202851592U CN 202851592 U CN202851592 U CN 202851592U CN 201220497162 CN201220497162 CN 201220497162 CN 201220497162 U CN201220497162 U CN 201220497162U CN 202851592 U CN202851592 U CN 202851592U
- Authority
- CN
- China
- Prior art keywords
- groove
- bolt
- shape switch
- section
- switch block
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a looseness-prevention bolt which comprises a bolt head and a screw rod. The bolt head and the screw rod are connected to be a whole, a through groove is formed in the upper surface of the bolt head, two L-shaped rotating blocks are symmetrically arranged in the through groove, the top ends of I-shaped portions of the L-shaped rotating blocks are connected with the lateral plate of the through groove in a rotating mode, and when the I-shaped portions of the L-shaped rotating blocks are arranged in the through groove, '-' portions of the L-shaped rotating blocks are towards the direction of the screw rod. The thicknesses of the L-shaped rotating blocks are equal to the width of the through groove, and multiple protrusions are arranged on the inner end faces of the '-' portions of the L-shaped rotating blocks in an array mode. According to the looseness-prevention bolt, when mechanical equipment operates and generates mechanical vibration, the bolt is not easy to shake and a thread is not easy to abrade. Fastening effect is increased, working performance and stability of the mechanical equipment are improved, especially, machining precision of precision equipment is guaranteed, and the phenomenon that the bolt drops off a threaded hole is avoided.
Description
Technical field
The utility model relates to a kind of chek bolt, relates in particular to a kind of chek bolt for connecting working table and side plate.
Background technique
Bolt is used for being fastenedly connected two with the mechanical parts of through hole by bolt head and screw rod (with an externally threaded cylindrical body) class fastening piece dimerous.As bolt is screwed out, can make again these two parts separately, be to belong to removably connect therefore bolt connects, be widely used in connecting working table and side plate.When machinery is moved, unavoidably can produce mechanical vibration, long-term mechanical vibration cause bolt to rock, cause thread abrasion, so that the fastening deleterious of bolt, affected service behaviour and the stability of machinery, particularly affected the machining accuracy of some precision equipments, also the phenomenon that bolt is deviate from tapped hole might occur, thereby cause mechanical failure.
The model utility content
The utility model purpose is that a kind of chek bolt of avoiding screw thread to wear and tear because of mechanical mechanical vibration is provided in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of chek bolt, comprise bolt head and screw rod, and described bolt head and screw rod connect into an integral body, and the upper surface of described bolt head has groove; Be arranged with two " L " shape switch blocks in the described groove; The top of " I " section of described " L " shape switch block is connected with the side plate of groove is rotatable; " I " of described " L " shape switch block when section was positioned at groove, "-" section of described " L " shape switch block was towards the direction of screw rod; The thickness of described " L " shape switch block is identical with the width of groove; "-" section interior edge face of described " L " shape switch block is provided with array a plurality of projections.
Preferably, when " I " section of described two " L " shape switch blocks is vertical with groove, the exterior edge face of " I " section of described two " L " shape switch blocks near.
Preferably, " I " of described " L " shape switch block when section is positioned at groove, and the lower surface of "-" section of described " L " shape switch block is positioned at the lower surface below of bolt head.
Because the utilization of technique scheme, the utility model compared with prior art has following advantages:
Chek bolt of the present utility model, under the general state, " I " section of " L " shape switch block is vertical with groove, screw in the tapped hole of worktable and side plate when screw rod after, L " shape switch block half-twist; the interior edge face of "-" section of described " L " shape switch block contacts with lower surface with the upper surface of worktable; because "-" section interior edge face of " L " shape switch block is provided with array a plurality of projections are arranged; play the effect of increasing friction force; when the machinery operation produces mechanical vibration; bolt is difficult for rocking, so that screw thread is not easy to wear, has increased fastening effect, service behaviour and the stability of machinery have been improved, special so that some precision equipment machining accuracies are guaranteed, and have prevented that more bolt from deviating from the generation of tapped hole phenomenon, have improved the Safety performance of machinery.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Accompanying drawing 1 is the stereogram of chek bolt of the present utility model;
Accompanying drawing 2 is another visual angle of chek bolt of the present utility model;
Accompanying drawing 3 is the use phase diagram of chek bolt of the present utility model;
Wherein: 1, bolt head; 2, screw rod; 3, groove; 4, " L " shape switch block; 5, projection.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Described in the utility model a kind of chek bolt shown in accompanying drawing 1,2 comprises bolt head 1 and screw rod 2, and described bolt head 1 and screw rod 2 connect into an integral body, and the upper surface of described bolt head 1 has groove 3; Be arranged with two " L " shape switch blocks 4 in the described groove 3; The top of " I " section of described " L " shape switch block 4 is connected with the side plate of groove 3 is rotatable; " I " of described " L " shape switch block 4 when one was positioned at groove 3, "-" section of described " L " shape switch block was towards the direction of screw rod, and the lower surface of "-" section of described " L " shape switch block 4 is positioned at the lower surface below of bolt head 1; When " I " section of described two " L " shape switch blocks 4 and groove 3 are vertical, the exterior edge face of " I " section of described two " L " shape switch blocks 4 near; The thickness of described " L " shape switch block 4 is identical with the width of groove 3; "-" section interior edge face of described " L " shape switch block 4 is provided with array a plurality of protruding 5.
Described in the utility model a kind of chek bolt as shown in Figure 3, under the general state, " I " section of " L " shape switch block 4 is vertical with groove 3, after screw rod 2 screws in the tapped hole of worktable and side plate, L " shape switch block 4 half-twists; the interior edge face of "-" section of described " L " shape switch block 4 contacts with lower surface with the upper surface of worktable; have a plurality of protruding 5 because "-" section interior edge face of " L " shape switch block 4 is provided with array; play the effect of increasing friction force; when the machinery operation produces mechanical vibration; bolt is difficult for rocking, so that screw thread is not easy to wear, has increased fastening effect, service behaviour and the stability of machinery have been improved, special so that some precision equipment machining accuracies are guaranteed, and have prevented that more bolt from deviating from the generation of tapped hole phenomenon, have improved the Safety performance of machinery.
Below only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, all drop within the utility model rights protection scope.
Claims (3)
1. a chek bolt comprises bolt head and screw rod, and described bolt head and screw rod connect into an integral body, it is characterized in that: the upper surface of described bolt head has groove; Be arranged with two " L " shape switch blocks in the described groove; The top of " I " section of described " L " shape switch block is connected with the side plate of groove is rotatable; " I " of described " L " shape switch block when section was positioned at groove, "-" section of described " L " shape switch block was towards the direction of screw rod; The thickness of described " L " shape switch block is identical with the width of groove; "-" section interior edge face of described " L " shape switch block is provided with array a plurality of projections.
2. chek bolt according to claim 1 is characterized in that: when " I " section of described two " L " shape switch blocks is vertical with groove, the exterior edge face of " I " section of described two " L " shape switch blocks near.
3. chek bolt according to claim 1 and 2 is characterized in that: " I " of described " L " shape switch block when section was positioned at groove, the lower surface of "-" section of described " L " shape switch block was positioned at the lower surface below of bolt head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220497162 CN202851592U (en) | 2012-09-27 | 2012-09-27 | Looseness-prevention bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220497162 CN202851592U (en) | 2012-09-27 | 2012-09-27 | Looseness-prevention bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851592U true CN202851592U (en) | 2013-04-03 |
Family
ID=47982798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220497162 Expired - Fee Related CN202851592U (en) | 2012-09-27 | 2012-09-27 | Looseness-prevention bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851592U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388393A (en) * | 2013-07-31 | 2013-11-13 | 无锡汉佳半导体科技有限公司 | Operation room wallboard keel attachment bolt |
| CN104454905A (en) * | 2014-12-19 | 2015-03-25 | 苏州市淞舜五金有限公司 | Automatic check bolt |
| CN104500540A (en) * | 2014-12-19 | 2015-04-08 | 苏州市淞舜五金有限公司 | Automatic elastic locking bolt |
-
2012
- 2012-09-27 CN CN 201220497162 patent/CN202851592U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388393A (en) * | 2013-07-31 | 2013-11-13 | 无锡汉佳半导体科技有限公司 | Operation room wallboard keel attachment bolt |
| CN104454905A (en) * | 2014-12-19 | 2015-03-25 | 苏州市淞舜五金有限公司 | Automatic check bolt |
| CN104500540A (en) * | 2014-12-19 | 2015-04-08 | 苏州市淞舜五金有限公司 | Automatic elastic locking bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20130927 |