CN203809475U - Nut and screw assembly - Google Patents
Nut and screw assembly Download PDFInfo
- Publication number
- CN203809475U CN203809475U CN201420164515.0U CN201420164515U CN203809475U CN 203809475 U CN203809475 U CN 203809475U CN 201420164515 U CN201420164515 U CN 201420164515U CN 203809475 U CN203809475 U CN 203809475U
- Authority
- CN
- China
- Prior art keywords
- hole
- nut
- locking bar
- section
- transposition
- 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
Links
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to a nut and screw assembly. The nut and screw assembly comprises a nut and a screw matched with an inner thread of the nut, wherein at least one lock groove is formed in the side wall edge of the top end of the screw; at least one two-step mounting through hole is formed in the nut, and a local stepped stop table is arranged in a position where an outer-section through hole of each two-step mounting through hole transits to an inner-section through hole; a locking device corresponding to each lock groove is mounted in each two-step mounting through hole; each locking device comprises a fixed ring, a spring and a lock rod; each spring is located in each outer-section through hole, and each lock rod is sleeved with each spring; each fixed ring is fixed on the inner wall of each outer-section through hole; a rotating stop edge which is located in each outer-section through hole, is propped against each local stepped stop table and enables each lock rod to extend into each inner-section through hole after being rotated to a certain angle is arranged in the middle of each lock rod; and each spring is compressed between each fixed ring and each rotating stop edge. By means of the nut and screw assembly, the nut can be locked, screwed on the screw and cannot loosen due to vibration, so that the locking effect is good.
Description
Technical field
The utility model relates to a kind of nut screw arbor assembly.
Background technique
Nut screw arbor assembly comprises a nut and a screw rod mating with nut internal thread, and existing nut screw arbor assembly is relatively simple for structure, after both are tightened, in use easily because vibration is become flexible, makes gradually nut backspin go out screw rod.Therefore, be applied in machinery and cannot be prevented that nut screw flight from connecting the loosening instrument failure that easily causes.
Summary of the invention
Goal of the invention of the present utility model is in order to provide a kind of simple in structure, screw rod to be screwed into the nut screw arbor assembly that can be locked after nut completely.
In order to realize foregoing invention object, the utility model has adopted following technological scheme:
Nut screw arbor assembly, comprises a nut and a screw rod mating with nut internal thread, is at least provided with a locked groove in described screw tip sidewall rim; Described nut is at least provided with the second order installation through hole that an outer section through hole sectional dimension is greater than inner segment through hole sectional dimension, the direction that second order is installed through hole is the radial direction that runs through nut sidewall, and the outer section of through hole that described second order is installed through hole is transitioned into the ladder gear platform that inner segment lead to the hole site place is a part; Described second order is installed in through hole a locking device corresponding with locked groove is installed; Described locking device comprises retaining ring, spring and locking bar; Spring is in outer section of through hole and is enclosed within outside locking bar; Described retaining ring is looped around locking bar outside and is fixed on outer section of through-hole wall; Described locking bar middle part is provided with a position outside in section through hole and keep out on local ladder gear platform but be indexed into the transposition block edge that several angle can make locking bar stretch into inner segment through hole, and the thickness of described transposition block edge equals the degree of depth of locked groove; Described spring-compressed is between retaining ring and transposition block edge.
As preferably, described outer section of through hole is the conglobate through hole in cross section, and described ladder gear platform is two symmetrical bow shaped surface; Described transposition block edge is two boss that protrude to the sidepiece of locking bar two symmetries respectively; The shape of cross section of described transposition block edge place locking bar is identical with inner segment through hole sectional shape.
As preferably, described locking bar is connected as a single entity and is formed by the body of rod at anterior tapered end, middle part and the transposition portion with transposition groove at rear portion; Described tapered end is in inner segment through hole, and body of rod main body is in outer section of through hole.
Adopted the nut screw arbor assembly of technique scheme, the screw rod of this nut screw arbor assembly is provided with locked groove, nut corresponding position is provided with locking device, screw rod is tightened on nut, with instrument rotation lock bar, until transposition block edge is not stopped by ladder gear platform, under the effect of spring force, promote tapered end and enter corresponding locked groove on screw rod, thereby lock nut is tightened on screw rod it, can not become flexible because of vibration, locking effect is good.
Accompanying drawing explanation
Fig. 1: the cross section structure schematic diagram of nut screw arbor assembly in the utility model embodiment.
Fig. 2: the partial enlarged drawing at A place in Fig. 1.
Fig. 3: the partial enlarged drawing in Fig. 2 after locking device locking.
Fig. 4: the perspective view of the instrument of locking bar and operation locking bar.
Fig. 5: the perspective view of nut vertical profile.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment: nut screw arbor assembly as Figure 1-5, nut screw arbor assembly comprises a nut 1 and a screw rod 2 mating with nut 1 internal thread, this nut 1 is hexagon nut.In these screw rod 2 top sidewall rim, be at least provided with a locked groove 20, be at least provided with a second order through hole is installed on nut 1, second order is installed in through hole a locking device corresponding with locked groove 20 is installed.
As shown in Figure 5, the direction that second order is installed through hole is the radial direction that runs through nut 1 sidewall, and what in second order installation through hole, be communicated with the external world is outer section of through hole 10, and what be communicated with nut 1 inner side is inner segment through hole 11.Outer section of through hole 10 sectional dimensions are greater than the second order installation through hole of inner segment through hole 11 sectional dimensions, and the outer section of through hole 10 that second order is installed through hole is transitioned into the ladder gear platform 101 that inner segment through hole 11 positions are parts.Its China and foreign countries' section through hole 10 is the conglobate through holes in cross section, and ladder gear platform 101 is two symmetrical bow shaped surface, and inner segment through hole 11 is through holes that circle is removed out bilateral symmetry bow shaped surface, the similar straight trough mouth of sectional shape.
As shown in Figure 2, Figure 3 and Figure 4, above-mentioned locking device comprises retaining ring 4, spring 6 and locking bar 3, and spring 6 is in outer section of through hole 10 and is enclosed within outside locking bar 3, and retaining ring 4 is looped around locking bar 3 outsides and is fixed on outer section of through hole 10 inwalls.And above-mentioned locking bar 3 is connected as a single entity and is formed by the body of rod 32 at anterior tapered end 31, middle part and the transposition portion 33 with transposition groove at rear portion.Locking bar 32 middle parts are that the front end of the body of rod 32 is provided with a position outside in section through hole 11 and keep out on local ladder gear platform 101 but be indexed into the transposition block edge 320 that several angle can make locking bar 3 stretch into inner segment through hole 11, and the thickness of transposition block edge 320 is not less than the degree of depth of locked groove 20.Above-mentioned tapered end 31 is in inner segment through hole 11, and after locking action completes, its head can move in locked groove 20, and the main body of the body of rod 32 is in outer section of through hole 10, after locking action completes, front end can piecemeal activity to inner segment through hole 11.Above-mentioned spring 6 is compressed between retaining ring 4 and transposition block edge 320.
Particularly, above-mentioned transposition block edge 320 is two boss that protrude to 32 liang of symmetrical sidepieces of the body of rod respectively, and the shape of cross section of transposition block edge 320 place's bodies of rod 32 is similar straight trough mouth also, and identical with inner segment through hole 11 sectional shapes.
As shown in Figures 2 and 3, when 320 rotations of transposition block edge are left to ladder gear platform 101 completely, the outward edge shape of now transposition block edge 320 is mated with inner segment through hole 11, under the effect of the elastic force stretching at spring 6, locking bar 3 and transposition block edge 320 are together pushed inner segment through hole 11, tapered end 31 extend out to nut inner side from inner segment through hole 11 inner port, snaps in locked groove 20 and completes locking.
As shown in Figure 4, operation locking bar 3 rotates to lock locked groove and retract the releasing locking that resets and all adopts T shape instrument 5.Above-mentioned T shape instrument 5 refers to the operation tool that its head 51 is T-shaped, and the transposition portion 332 at above-mentioned locking bar 3 rear portions is provided with transposition groove, and transposition groove is one can be goed deep into transposition by T shape instrument 5 and pull out the curve bath of locking bar 3.Concrete structure is as follows, and locking bar 3 ends are extended and left two centrosymmetric arc pieces 331, and the distance of T shape instrument width is left in arc piece 331 the inners, and curve bath is specifically opened on the sidewall of arc piece 331, and opening is in the direction in locking bar 3 longitudinal sections.
As shown in Figure 1, the locked groove being provided with 20 quantity in screw rod 2 top sidewall rim are 3 of adjacent 120 degree of being roughly separated by, divide three directions that are in screw rod 2 top sidewall rim.Second order is installed through hole and locking device quantity arranges 3 groups, 3 groups of 120 degree of being separated by accordingly.For release better, there is deviation in tapered end 31 positions on above-mentioned locked groove 20 and locking device, when one of them group locked groove 20 with the tapered end 31 on corresponding locking device completely at once, tapered end 31 can stretch into locked groove 20, other two groups of certainty are not corresponding.Thereby make nut and screw rod can have certain deviation that is threaded, this connection deviation is the continuous deviation of the locked groove 20 that can be locked by any one locking device.
Claims (3)
1. nut screw arbor assembly, comprises a nut (1) and a screw rod (2) mating with nut (1) internal thread, it is characterized in that: in the sidewall rim of described screw rod (2) top, be at least provided with a locked groove (20); Described nut (1) is at least provided with the second order installation through hole that outer section through hole (10) sectional dimension is greater than inner segment through hole (11) sectional dimension, the direction that second order is installed through hole is the radial direction that runs through nut (1) sidewall, and the outer section of through hole (10) that described second order is installed through hole is transitioned into the ladder gear platform (101) that inner segment through hole (11) position is a part; Described second order is installed in through hole a locking device corresponding with locked groove (20) is installed; Described locking device comprises retaining ring (4), spring (6) and locking bar (3); Spring (6) is in outer section of through hole (10) and is enclosed within outside locking bar (3); Described retaining ring (4) is looped around locking bar (3) outside and is fixed on outer section of through hole (10) inwall; Described locking bar (32) middle part is provided with a position outside in section through hole (11) and keep out at local ladder gear platform (101) above but be indexed into the transposition block edge (320) that several angle can make locking bar (3) stretch into inner segment through hole (11), and the thickness of described transposition block edge (320) is not less than the degree of depth of locked groove (20); Described spring (6) is compressed between retaining ring (4) and transposition block edge (320).
2. nut screw arbor assembly according to claim 1, is characterized in that: described outer section of through hole (10) is the conglobate through hole in cross section, and described ladder gear platform (101) is two symmetrical bow shaped surface; Described transposition block edge (320) is two boss that protrude to the sidepiece of locking bar (3) two symmetries respectively; The shape of cross section that described transposition block edge (320) is located locking bar (3) is identical with inner segment through hole (11) sectional shape.
3. nut screw arbor assembly according to claim 1, is characterized in that: described locking bar (3) is by the body of rod (32) at anterior tapered end (31), middle part and the transposition portion (33) with transposition groove at the rear portion formation that is connected as a single entity; Described tapered end (31) is in inner segment through hole (11), and the body of rod (32) main body is in outer section of through hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420164515.0U CN203809475U (en) | 2014-04-07 | 2014-04-07 | Nut and screw assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420164515.0U CN203809475U (en) | 2014-04-07 | 2014-04-07 | Nut and screw assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809475U true CN203809475U (en) | 2014-09-03 |
Family
ID=51448232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420164515.0U Expired - Fee Related CN203809475U (en) | 2014-04-07 | 2014-04-07 | Nut and screw assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809475U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015260A (en) * | 2016-07-19 | 2016-10-12 | 海盐哈特惠机械五金制品有限公司 | Multifunctional nut |
| CN109737128A (en) * | 2019-02-19 | 2019-05-10 | 国家电网有限公司 | Antitheft tightening assembly and removal tool special |
| CN110645253A (en) * | 2019-09-29 | 2020-01-03 | 宁波金鼎紧固件有限公司 | Nut and bolt assembly capable of self-locking |
-
2014
- 2014-04-07 CN CN201420164515.0U patent/CN203809475U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015260A (en) * | 2016-07-19 | 2016-10-12 | 海盐哈特惠机械五金制品有限公司 | Multifunctional nut |
| CN109737128A (en) * | 2019-02-19 | 2019-05-10 | 国家电网有限公司 | Antitheft tightening assembly and removal tool special |
| CN110645253A (en) * | 2019-09-29 | 2020-01-03 | 宁波金鼎紧固件有限公司 | Nut and bolt assembly capable of self-locking |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203809475U (en) | Nut and screw assembly | |
| CN103867549A (en) | Nut and screw assembly, locking tool, locking method and unlocking method | |
| CN204610510U (en) | A kind of Novel self-lock bolt | |
| SA517380788B1 (en) | Fatigue resistant thread profile with combined curve rounding | |
| CN103423282A (en) | Locking device of outer hexagonal head bolt or outer hexagonal head nut | |
| CN204025297U (en) | A kind of anti-theft lock nut | |
| CN203961533U (en) | A kind of Theftproof bolt | |
| CN203417256U (en) | Universal ring for bone fracture locking plate | |
| CN202833526U (en) | Hexagon stud | |
| CN105545921A (en) | Coaxial bolt set with gasket for stopping | |
| CN203993773U (en) | wiper arm removal tool | |
| CN204708953U (en) | A kind of modularization assembling blade plate | |
| TWM439116U (en) | Anti loosing nut | |
| CN110439902B (en) | Bolt not easy to twist off | |
| CN207392773U (en) | Installation support for insulation board locking structure | |
| CN203585031U (en) | Bolt for fixation of electric baby carriage | |
| CN203516483U (en) | Bearing and shaft assembly structure | |
| CN102418732A (en) | External hexagonal locking nut | |
| CN215634307U (en) | Main shaft nut with good locking effect | |
| CN204801073U (en) | A little pinch roller subassembly for tire tread wind | |
| CN204344651U (en) | A kind of chek bolt | |
| CN205260567U (en) | Combined nut | |
| CN202170915U (en) | Self-locking nut | |
| CN205207370U (en) | Vacuum bolt | |
| CN202418183U (en) | Knurled nut |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20150407 |
|
| EXPY | Termination of patent right or utility model |