CN203374598U - Detachable expansion bolt - Google Patents

Detachable expansion bolt Download PDF

Info

Publication number
CN203374598U
CN203374598U CN201320410419.5U CN201320410419U CN203374598U CN 203374598 U CN203374598 U CN 203374598U CN 201320410419 U CN201320410419 U CN 201320410419U CN 203374598 U CN203374598 U CN 203374598U
Authority
CN
China
Prior art keywords
bolt
expansion
screw rod
bolt head
head
Prior art date
Application number
CN201320410419.5U
Other languages
Chinese (zh)
Inventor
张卫
Original Assignee
张卫
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 张卫 filed Critical 张卫
Priority to CN201320410419.5U priority Critical patent/CN203374598U/en
Application granted granted Critical
Publication of CN203374598U publication Critical patent/CN203374598U/en

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Abstract

The utility model discloses a detachable expansion bolt. A bolt head of the detachable expansion bolt can be arranged to be of a detachable nut type structure and therefore the detachable expansion bolt is convenient to detach. The detachable expansion bolt comprises a nut, an expansion pipe, the bolt head and a screw rod. The front end and the rear end of the screw rod are arranged to be of threaded head structures. The bolt head arranged to be of the cone-shaped nut type structure is connected with the lower end of the screw rod through a screw hole in a threaded mode. The expansion pipe is arranged on the screw rod in a sleeved mode and located above the bolt head. The nut is connected with the upper end of the screw rod through the screw hole in a threaded mode. When the expansion bolt is installed, the expansion bolt can be inserted into an installation hole of a supporting object, the expansion pipe is pushed to move downwards along the screw rod by rotating the nut, when the bolt head is extruded into the expansion pipe and promotes the expansion pipe to expand, the expansion bolt can be fixedly connected to the supporting object. When the expansion bolt is detached, the screw rod is rotated reversely, the screw rod is detached from the bolt head, the bolt head retreats out of the expansion pipe reversely, and finally the expansion pipe and the bolt head can be taken out from the installation hole of the supporting object.

Description

Dismountable upset bolt

Technical field

The utility model relates to a kind of EXPANSION ANCHOR BOLTS, especially can be arranged to dismountable screw cap type structure by the bolt head by bolt, thereby is convenient to the dismountable upset bolt of removing.

Background technique

At present, its bolt head of known EXPANSION ANCHOR BOLTS is stationary structure, and therefore discarded EXPANSION ANCHOR BOLTS is inconvenient to remove.

Summary of the invention

Be inconvenient to the deficiency of removing in order to overcome existing EXPANSION ANCHOR BOLTS when passing into disuse, the utility model provides a kind of dismountable upset bolt, this dismountable upset bolt can be arranged to dismountable screw cap type structure by the bolt head by bolt, thereby is convenient to remove discarded EXPANSION ANCHOR BOLTS.

The utility model solves the technological scheme that its technical problem adopts: the utility model comprises nut, expansion tube, bolt head and screw rod.The thread head structure all is arranged in the rear and front end of screw rod, the bolt head is arranged to conical screw cap type structure, and the bolt head is threaded with the lower end of screw rod by screw, and expansion tube is sleeved on screw rod, and being positioned at the top of bolt head, nut is threaded with the upper tip of screw rod by screw.When EXPANSION ANCHOR BOLTS is installed, EXPANSION ANCHOR BOLTS is inserted in the mounting hole of bearing object, then is promoted expansion tube by rotating nut and move down along screw rod, when the bolt head, clamp-on in expansion tube and impel expansion tube to expand change when large, EXPANSION ANCHOR BOLTS can be fixedly connected on bearing object.While removing EXPANSION ANCHOR BOLTS, contra rotating screw, lay down screw rod from the bolt head, then the bolt head is oppositely exited from expansion tube, finally expansion tube and bolt head can be taken out from the mounting hole of bearing object.

The beneficial effects of the utility model are to be arranged to dismountable screw cap type structure by the bolt head by bolt, thereby to be convenient to remove discarded EXPANSION ANCHOR BOLTS.

The accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is plan view of the present utility model.

Fig. 2 is the partial sectional view of Fig. 1.

Fig. 3 is the A-A sectional drawing of Fig. 1.

Fig. 4 is the enforcement illustration of Fig. 3.

In figure: 1. nut.2. expansion tube.3. bolt head.4. screw rod.

Embodiment

In Fig. 1, Fig. 2, Fig. 3, Fig. 4, the thread head structure all is arranged in the rear and front end of screw rod 4, bolt head 3 is arranged to conical screw cap type structure, bolt head 3 is threaded with the lower end of screw rod 4 by screw, expansion tube 2 is sleeved on screw rod 4, and being positioned at the top of bolt head 3, nut 1 is threaded with the upper tip of screw rod 4 by screw.When EXPANSION ANCHOR BOLTS is installed, EXPANSION ANCHOR BOLTS is inserted in the mounting hole of bearing object, promote expansion tube 2 by rotating nut 1 again and move down along screw rod 4, when bolt head 3 is clamp-oned in expansion tube 2 and impel expansion tube 2 expansions to become large, EXPANSION ANCHOR BOLTS can be fixedly connected on bearing object.While removing EXPANSION ANCHOR BOLTS, contra rotating screw 4, lay down screw rod 4 from bolt head 3, then bolt head 3 is oppositely exited from expansion tube 2, finally expansion tube 2 and bolt head 3 can be taken out from the mounting hole of bearing object.

Claims (1)

1. a dismountable upset bolt, it comprises nut, expansion tube, bolt head and screw rod, it is characterized in that: the thread head structure all is arranged in the rear and front end of screw rod, the bolt head is arranged to conical screw cap type structure, the bolt head is threaded with the lower end of screw rod by screw, expansion tube is sleeved on screw rod, and is positioned at the top of bolt head, and nut is threaded with the upper tip of screw rod by screw.
CN201320410419.5U 2013-07-11 2013-07-11 Detachable expansion bolt CN203374598U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320410419.5U CN203374598U (en) 2013-07-11 2013-07-11 Detachable expansion bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320410419.5U CN203374598U (en) 2013-07-11 2013-07-11 Detachable expansion bolt

Publications (1)

Publication Number Publication Date
CN203374598U true CN203374598U (en) 2014-01-01

Family

ID=49837128

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320410419.5U CN203374598U (en) 2013-07-11 2013-07-11 Detachable expansion bolt

Country Status (1)

Country Link
CN (1) CN203374598U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103939440A (en) * 2014-04-29 2014-07-23 欧卉 Stepped conical nut fastener
CN104712630A (en) * 2015-03-02 2015-06-17 青岛林川工程技术咨询有限公司 Demountable expansion bolt and use method thereof
CN105313168A (en) * 2015-06-23 2016-02-10 俸荣富 Connecting structure for cutting die and cutter shaft
CN105570257A (en) * 2014-10-09 2016-05-11 青岛林川工程技术咨询有限公司 Dismounting and mounting method capable of completely dismounting expansion bolt
CN108006039A (en) * 2017-11-30 2018-05-08 郭金燕 A kind of expansion bolt of Fast Installation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103939440A (en) * 2014-04-29 2014-07-23 欧卉 Stepped conical nut fastener
CN105570257A (en) * 2014-10-09 2016-05-11 青岛林川工程技术咨询有限公司 Dismounting and mounting method capable of completely dismounting expansion bolt
CN105570257B (en) * 2014-10-09 2017-08-04 山东省路桥集团有限公司 A kind of assembly and disassembly methods for the expansion bolt that can be removed completely
CN104712630A (en) * 2015-03-02 2015-06-17 青岛林川工程技术咨询有限公司 Demountable expansion bolt and use method thereof
CN105313168A (en) * 2015-06-23 2016-02-10 俸荣富 Connecting structure for cutting die and cutter shaft
CN108006039A (en) * 2017-11-30 2018-05-08 郭金燕 A kind of expansion bolt of Fast Installation

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Legal Events

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

Granted publication date: 20140101

Termination date: 20140711