CN204942181U - A kind of setscrew - Google Patents

A kind of setscrew Download PDF

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Publication number
CN204942181U
CN204942181U CN201520635980.2U CN201520635980U CN204942181U CN 204942181 U CN204942181 U CN 204942181U CN 201520635980 U CN201520635980 U CN 201520635980U CN 204942181 U CN204942181 U CN 204942181U
Authority
CN
China
Prior art keywords
rod
setscrew
expansion sleeve
nut
pad
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
Application number
CN201520635980.2U
Other languages
Chinese (zh)
Inventor
张永宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Yusheng Metal Products Co Ltd
Original Assignee
Tianjin Yusheng Metal Products Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Yusheng Metal Products Co Ltd filed Critical Tianjin Yusheng Metal Products Co Ltd
Priority to CN201520635980.2U priority Critical patent/CN204942181U/en
Application granted granted Critical
Publication of CN204942181U publication Critical patent/CN204942181U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of setscrew, it mainly comprises screw rod, nut, pad and expansion sleeve, nut, pad and expansion sleeve are all enclosed within screw rod, screw rod is made up of connecting rod, screw mandrel, expansion head rod and drift, nut and pad are all enclosed within screw mandrel, expansion sleeve is enclosed within screw mandrel and expands on head rod, the outer wall of expansion sleeve evenly distributed several retaining rings, the inwall neutral position of expansion sleeve is provided with a ring fixture block, expands the neutral position of head rod and is provided with a ring draw-in groove corresponding with ring fixture block.The beneficial effects of the utility model have: the design of arc surface is easy to setscrew to throw in hole, face directly simultaneously and can be stuck in hole by setscrew, good stability; Ring fixture block will be stuck in ring draw-in groove, ensure that screw rod and expansion sleeve relative displacement do not occur, strengthen stability further; Lower portion of ram is more and more wider to top, is beneficial to and squeezes in hole by setscrew; Plane of inclination extruding pad makes it form depression, aperture of can fitting, better closed orifices.

Description

A kind of setscrew
Technical field
The utility model relates to a kind of setscrew, belongs to technical field of metal.
Background technique
Setscrew in general be metallic expansive screw, setscrew is is fixedly utilize wedge shape gradient to impel expand produce friction bond stress, reach fixed effect.One, screw is screw thread, one has tapering.Outer bread one iron sheet (having plenty of steel pipe), iron sheet cylinder (steel pipe) half has some otch, they is filled in hole that wall is accomplished fluently together, then locks nut, nut pulls outward screw, tapering is drawn in iron sheet cylinder, iron sheet cylinder by spreading, so tightly fixing on the wall, be generally used for fastening on the material such as cement, brick such as protective grating, canopy, air-conditioning.But current various setscrew is fixing very unreliable, if load has comparatively big bang, may get loose, bring inconvenience to use.
Model utility content
The technical problems to be solved in the utility model, be to provide a kind of setscrew, this setscrew is easily thrown in hole, when after expansion, can very firmly be fixed in hole, not easily come off.
The utility model is realized by following proposal: a kind of setscrew, it mainly comprises screw rod, nut, pad and expansion sleeve, described nut, described pad and described expansion sleeve are all enclosed within described screw rod, described screw rod is by connecting rod, screw mandrel, expand head rod and drift composition, described connecting rod is smooth cylindrical cross bar, described screw mandrel is provided with screw thread, the diameter of described expansion head rod from left to right becomes large gradually, with by described expansion sleeve distending, described drift is frustoconic shape, bottom is more and more wider to top, be beneficial to like this and setscrew is squeezed in hole, described nut and described pad are all enclosed within described screw mandrel, described nut is plane of inclination near the side of described pad, described expansion sleeve is enclosed within described screw mandrel and described expansion head rod, the outer wall of described expansion sleeve evenly distributed several retaining rings, described retaining ring forms with arc surface by facing directly, the design of arc surface is easy to setscrew to throw in hole, face directly simultaneously and can setscrew be stuck in hole, the inwall neutral position of described expansion sleeve is provided with a ring fixture block, the neutral position of described expansion head rod is provided with a ring draw-in groove corresponding with described ring fixture block, time described expansion sleeve is mobile to inside, hole, described ring fixture block will be stuck in described ring draw-in groove, ensure that described screw rod and described expansion sleeve relative displacement do not occur, described expansion head rod is provided with one deck frosted layer, increase frictional force, described frosted layer is arranged between described ring draw-in groove and described drift.
Described expansion sleeve is provided with a circle tongue piece near that one end of described drift, is separated between described tongue piece by sleeve cut.
The internal diameter of described nut is provided with the lines corresponding with the screw thread of described screw mandrel.
Described connecting rod, described screw mandrel, described expansion head rod and described drift array from left to right.
Described nut is near described connecting rod, and described pad is between described connecting rod and described expansion sleeve.
The beneficial effects of the utility model are:
1, the expansion sleeve outside of a kind of setscrew of the utility model is provided with and much encloses retaining ring, retaining ring one end is for facing directly, and one end is arc surface, and the design of arc surface is easy to setscrew to throw in hole, face directly simultaneously and can setscrew be stuck in hole, good stability;
2, a kind of setscrew of the utility model is provided with ring fixture block and ring draw-in groove, and when expansion sleeve is mobile to inside, hole time, ring fixture block will be stuck in ring draw-in groove, ensure that screw rod and expansion sleeve relative displacement do not occur, strengthen stability further;
3, one end of the screw rod of a kind of setscrew of the utility model is drift, and lower portion of ram is more and more wider to top, is beneficial to like this and squeezes in hole by setscrew;
4, the nut of a kind of setscrew of the utility model is provided with plane of inclination, and in the process that tightening nut is fixing, plane of inclination extruding pad makes it form depression, aperture of can fitting, better closed orifices.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of setscrew of the utility model;
In figure: 1 is screw rod, 2 is nut, and 3 is pad, 4 is expansion sleeve, and 5 is connecting rod, and 6 is screw mandrel, 7 for expanding head rod, and 8 is drift, and 9 is screw thread, 10 is plane of inclination, and 11 is retaining ring, and 12 for facing directly, 13 is arc surface, and 14 is ring fixture block, and 15 is ring draw-in groove, 16 is frosted layer, and 17 is tongue piece, and 18 is sleeve cut.
Embodiment
Below in conjunction with Fig. 1, the utility model is further illustrated, but the utility model protection domain does not limit to described content.
A kind of setscrew, it mainly comprises screw rod 1, nut 2, pad 3 and expansion sleeve 4, nut 2, pad 3 and expansion sleeve 4 are all enclosed within screw rod 1, screw rod 1 is by connecting rod 5, screw mandrel 6, expansion head rod 7 and drift 8 form, connecting rod 5 is smooth cylindrical cross bar, screw mandrel 6 is provided with screw thread 9, the diameter expanding head rod 7 from left to right becomes large gradually, with by expansion sleeve 4 distending, drift 8 is in frustoconic shape, bottom is more and more wider to top, be beneficial to like this and setscrew is squeezed in hole, nut 2 and pad 3 are all enclosed within screw mandrel 6, nut 2 is plane of inclination 10 near the side of pad 3, expansion sleeve 4 is enclosed within screw mandrel 6 and expands on head rod 7, the outer wall of expansion sleeve 4 evenly distributed several retaining rings 11, retaining ring 11 by face directly 12 and arc surface 13 form, the design of arc surface is easy to setscrew to throw in hole, face directly simultaneously and can setscrew be stuck in hole, the inwall neutral position of expansion sleeve 4 is provided with a ring fixture block 14, expand the neutral position of head rod 7 and be provided with a ring draw-in groove 15 corresponding with ring fixture block 14, time expansion sleeve 4 is mobile to inside, hole, ring fixture block 14 will be stuck in ring draw-in groove 15, ensure that screw rod 1 and expansion sleeve 4 relative displacement do not occur, expand head rod 7 and be provided with one deck frosted layer 16, increase frictional force, frosted layer 16 is arranged between ring draw-in groove 15 and drift 8, expansion sleeve 4 is provided with a circle tongue piece 17 near that one end of drift 8, separated by sleeve cut 18 between tongue piece 17, the internal diameter of nut 2 is provided with the lines corresponding with the screw thread 9 of screw mandrel 6, connecting rod 5, screw mandrel 6, expansion head rod 7 and drift 8 array from left to right, nut 2 is near connecting rod 5, pad 3 is between connecting rod 5 and expansion sleeve 4.
Setscrew is squeezed into after in hole, internally moved by rotating nut 2 extrusion expansion sleeve 4, in time moving to a certain degree, expand head rod 7 and extrude tongue piece 17, tongue piece 17 is opened, ring fixture block 14 is stuck in ring draw-in groove 15 simultaneously, and setscrew is also fixed in hole by facing 12 directly by retaining ring 11 further.
Although done comparatively detailed elaboration to the technical solution of the utility model and enumerated; be to be understood that; to those skilled in the art; amendment is made to above-described embodiment or adopts equivalent replacement scheme; this is apparent to those skilled in the art; these modifications or improvements on the basis of not departing from the utility model spirit, all belong to the scope that the utility model is claimed.

Claims (5)

1. a setscrew, it is characterized in that: it mainly comprises screw rod (1), nut (2), pad (3) and expansion sleeve (4), described nut (2), described pad (3) and described expansion sleeve (4) are all enclosed within described screw rod (1), described screw rod (1) is by connecting rod (5), screw mandrel (6), expand head rod (7) and drift (8) composition, described connecting rod (5) is smooth cylindrical cross bar, described screw mandrel (6) is provided with screw thread (9), the diameter of described expansion head rod (7) from left to right becomes large gradually, described drift (8) is in frustoconic shape, described nut (2) and described pad (3) are all enclosed within described screw mandrel (6), described nut (2) is plane of inclination (10) near the side of described pad (3), described expansion sleeve (4) is enclosed within described screw mandrel (6) and described expansion head rod (7), the outer wall of described expansion sleeve (4) evenly distributed several retaining rings (11), described retaining ring (11) is by facing (12) directly and arc surface (13) forms, the inwall neutral position of described expansion sleeve (4) is provided with a ring fixture block (14), the neutral position of described expansion head rod (7) is provided with a ring draw-in groove (15) corresponding with described ring fixture block (14), described expansion head rod (7) is provided with one deck frosted layer (16), described frosted layer (16) is arranged between described ring draw-in groove (15) and described drift (8).
2. a kind of setscrew according to claim 1, is characterized in that: described expansion sleeve (4) is provided with a circle tongue piece (17) near that one end of described drift (8), is separated between described tongue piece (17) by sleeve cut (18).
3. a kind of setscrew according to claim 1, is characterized in that: the internal diameter of described nut (2) is provided with the lines corresponding with the screw thread of described screw mandrel (6) (9).
4. a kind of setscrew according to claim 1, is characterized in that: described connecting rod (5), described screw mandrel (6), described expansion head rod (7) and described drift (8) array from left to right.
5. a kind of setscrew according to claim 1, is characterized in that: described nut (2) is near described connecting rod (5), and described pad (3) is between described connecting rod (5) and described expansion sleeve (4).
CN201520635980.2U 2015-08-20 2015-08-20 A kind of setscrew Expired - Fee Related CN204942181U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520635980.2U CN204942181U (en) 2015-08-20 2015-08-20 A kind of setscrew

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520635980.2U CN204942181U (en) 2015-08-20 2015-08-20 A kind of setscrew

Publications (1)

Publication Number Publication Date
CN204942181U true CN204942181U (en) 2016-01-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520635980.2U Expired - Fee Related CN204942181U (en) 2015-08-20 2015-08-20 A kind of setscrew

Country Status (1)

Country Link
CN (1) CN204942181U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109655047A (en) * 2019-02-04 2019-04-19 刘志强 Tunnel perimeter deflection monitoring point

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109655047A (en) * 2019-02-04 2019-04-19 刘志强 Tunnel perimeter deflection monitoring point

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160106

Termination date: 20170820

CF01 Termination of patent right due to non-payment of annual fee