CN205895832U - Unilateral bolt fastener - Google Patents

Abstract

The utility model discloses an unilateral bolt fastener, including case bolt, gasket, fastening nut and barrier mechanism, on case bolt's the body of rod by preceding after to in proper order the cover be equipped with fastening nut, gasket and barrier mechanism, barrier mechanism includes the first cover body, the second cover body, a plurality of first support, a plurality of second support, plug body, the third cover body, a plurality of first connector and a plurality of second connector, the cover is equipped with the first cover body and threaded connection's the second cover body on case bolt's the body of rod, the rear at the second cover body is established to the first cover body, the front end of the first cover body is the distribution of circumference form has first support, all be equipped with rotatable coupling's first connector on the first support, compare with prior art, can realize unilateral implementation fastening operation, still can be as required, convenient dismantlement, repeatedly usable.

Description

A kind of unilateral bolt fastener

[technical field]

This utility model is related to a kind of unilateral bolt fastener, belongs to civil construction project, mechanical assembly technique field.

[background technology]

For commonly using the plain bolt being made up of screw rod and nut at present, when carrying out terminal operation, need to be Then nut is tightened, installation requirement installation personnel is simultaneously in structure by side insertion screw rod binding nut in opposite side instrument The operation of part both sides.But the installation with respect to opening section component more typically, for such as closed cross-section member and inconvenience Touch wherein for the component of one side, this bolt commonly using using and inconvenient.As concrete filled steel tube, Beam-column connection etc., because column section mostly is closed section, plain bolt can not be operated on both sides, therefore commonly square Method cannot be installed.Because being difficult to the applying of bolt pretightening, fastening effect is also unable to reach larger the common one-way bolt that expands Design requirement under load.And the reserved required precision of punching bolt-for-bolt hole of the prior art is especially high, in-site installation Difficulty is big, and is difficult to apply at side column and corner post node.And in existing monolateral bolt, it is not suitable for large span or big load Structure, and need more complicated installation tool and cumbersome installation steps.

[utility model content]

The purpose of this utility model is exactly to solve the problems of the prior art, proposes a kind of unilateral bolt fastener, can Realize monolateral enforcement terminal operation, also can as needed, convenient dismounting, reusable.

For achieving the above object, the utility model proposes a kind of unilateral bolt fastener, including snap bolt, pad, Clamp nut and blocking mechanism, the body of rod of described snap bolt is arranged with clamp nut, pad and stop from front to back successively Mechanism, described blocking mechanism include the first body, the second body, some first bearings, some second bearings, grafting body, the 3rd Body, some first connectors and some second connectors, the body of rod of described snap bolt is arranged with the first body and screw thread The second body connecting, described first body is located at the rear of the second body, the front end circumferentially shape distribution of described first body There is the first bearing, described first bearing is equipped with the first connector being rotatably connected, the rear end of described second body is in circle All shapes are distributed with the second bearing, and described second bearing is equipped with the second connector being rotatably connected, described second connector Rear end be rotatably connected with the front end of the first connector, the front end of described second body is provided with the body of rod being set in snap bolt On grafting body, the body of rod of described snap bolt is arranged with the 3rd body, described 3rd body and grafting body socket connection.

Preferably, described 3rd body includes turning portion and is located at the connecting portion turning portion rear end, described connecting portion set On grafting body.

Preferably, the cross section of described grafting body is regular polygon shape.

Preferably, the front end of the rear end of described first connector and the second connector passes through axis body and the first bearing respectively It is rotatably connected with the second bearing, the front end of described first connector and the rear end of the second connector are rotatably connected by axis body Together.

Preferably, also including positioning body, described positioning body is located at the rear end bottom of one of them the second connector, described Conflict on the body of rod of snap bolt in the lower end of positioning body.

Preferably, the front end of the body of rod of described snap bolt is provided with anti-rotation fixed body, described anti-rotation fixed body is just many Side shape shape.

Preferably, when described blocking mechanism is working condition, after the front end face of described first body and the second body End face is fitted with the rear end face of the first connector and front end face respectively, the front end face of described first body and the rear end of the second body Also fitted with the rear end face of the second connector and front end face respectively in face.

The beneficial effects of the utility model: this utility model, when using, unilateral bolt fastener is inserted installing hole, and Ensure that the rear end of the second body is at least concordant with the rear end of installing hole, then handss fix snap bolt, and another handss rotate 3rd body rotates, and the 3rd body drives the second body to rotate by grafting body, and the second body is along the bar of snap bolt simultaneously Body rearward movement, the second body passes through the second bearing and drives the second connector to be moved to vertical state from heeling condition, and simultaneously the Two connectors drive the first connector to be moved from heeling condition to vertical state, when the first connector and the second connector are in vertically State when overlapping, the first connector and the second connector are blocked in the rear end of installing hole, and the second body and the first body are to One connector and the second connector are also in clamp position, and now, the 3rd body nor continuation keep former direction to rotate, then from circle 3rd body is taken away on the body of rod of hook bolt, then fastens clamp nut, when disassembly is desired, come loose clamp nut, will 3rd body is recovered on grafting body, then opposite direction rotate the 3rd body until unilateral bolt fastener can from install in the hole take Go out, compared with prior art, be capable of monolateral enforcement terminal operation, also can as needed, convenient dismounting, reusable.

Feature of the present utility model and advantage will combine accompanying drawing by embodiment and be described in detail.

[brief description]

Fig. 1 is a kind of structural representation of unilateral bolt fastener of this utility model；

Fig. 2 is the structural representation after a kind of installation of unilateral bolt fastener of this utility model.

In figure: 1- snap bolt, 2- pad, 3- clamp nut, 4- blocking mechanism, 5- installing hole, 11- anti-rotation fixed body, 41- first body, 42- second body, 43- first bearing, 44- second bearing, 45- grafting body, 46- positioning body, the 3rd set of 47- Body, 48- first connector, 49- second connector, 471- turn portion, 472- connecting portion.

[specific embodiment]

Refering to Fig. 1,2, a kind of unilateral bolt fastener of this utility model, including snap bolt 1, pad 2, clamp nut 3 With blocking mechanism 4, the body of rod of described snap bolt 1 is arranged with clamp nut 3, pad 2 and blocking mechanism from front to back successively 4, described blocking mechanism 4 includes the first body 41, the second body 42, some first bearings 43, some second bearings 44, grafting body 45th, the 3rd body 47, some first connectors 48 and some second connectors 49, the body of rod of described snap bolt 1 is arranged with First body 41 and the second threaded body 42, described first body 41 is located at the rear of the second body 42, and described first Circumferentially shape is distributed with the first bearing 43 for the front end of body 41, described first bearing 43 is equipped with first being rotatably connected even Junctor 48, circumferentially shape is distributed with the second bearing 44 for the rear end of described second body 42, and described second bearing 44 is equipped with can Rotate the second connector 49 connecting, the rear end of described second connector 49 and the front end of the first connector 48 are rotatably connected, The front end of described second body 42 is provided with the grafting body 45 being set on the body of rod of snap bolt 1, the body of rod of described snap bolt 1 On be arranged with the 3rd body 47, described 3rd body 47 and grafting body 45 socket connection, described 3rd body 47 includes turning portion 471 are enclosed within grafting body 45 with the connecting portion 472 being located at the portion of turning 471 rear end, described connecting portion 472, described grafting body 45 Cross section is regular polygon shape, the rear end of described first connector 48 and the front end of the second connector 49 pass through respectively axis body with First bearing 43 and the second bearing 44 are rotatably connected, and the front end of described first connector 48 is led to the rear end of the second connector 49 Cross axis body and be rotatably connected together, also include positioning body 46, described positioning body 46 is located at one of them the second connector 49 Rear end bottom, the lower end of described positioning body 46 is conflicted on the body of rod of snap bolt 1, the front end of the body of rod of described snap bolt 1 It is provided with anti-rotation fixed body 11, described anti-rotation fixed body 11 is regular polygon shape, when described blocking mechanism 4 is working condition, institute The rear end face of the front end face and the second body 42 of stating the first body 41 is pasted with the rear end face of the first connector 48 and front end face respectively Close, the front end face of described first body 41 and the rear end face of the second body 42 also respectively with the rear end face of the second connector 49 and front End face is fitted.

Utility model works process:

A kind of unilateral bolt fastener of this utility model in the course of the work, unilateral bolt fastener is inserted installing hole 5, And ensure the second body 42 rear end at least concordant with the rear end of installing hole 5, then hands fix snap bolt 1, another Handss rotate the 3rd body 47 and rotate, and the 3rd body 47 drives the second body 42 to rotate by grafting body 45, the second body 42 simultaneously Along the body of rod rearward movement of snap bolt 1, the second body 42 drives the second connector 49 by skewed by the second bearing 44 State is moved to vertical state, and the second connector 49 drives the first connector 48 to be moved from heeling condition to vertical state simultaneously, when First connector 48 and the second connector 49 are in vertical state when overlapping, and the first connector 48 is blocked in the second connector 49 The rear end of installing hole 5, the second body 42 and the first body 41 are also in clamp position to the first connector 48 and the second connector 49, Now, the 3rd body 47 nor continuation keep former direction to rotate, then take the 3rd body 47 from the body of rod of snap bolt 1 away, Then fasten clamp nut 3, when disassembly is desired, come loose clamp nut 3, the 3rd body is covered on 47 times grafting bodies, so Opposite direction rotates the 3rd body 47 and can take out in installing hole 5 until unilateral bolt fastener afterwards, compared with prior art, can Realize monolateral enforcement terminal operation, also can as needed, convenient dismounting, reusable.

Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, any new to this practicality Scheme after type simple transformation belongs to protection domain of the present utility model.

Claims (7)

1. a kind of unilateral bolt fastener it is characterised in that: include snap bolt (1), pad (2), clamp nut (3) and stop Mechanism (4), the body of rod of described snap bolt (1) is arranged with clamp nut (3), pad (2) from front to back successively and stops machine Structure (4), described blocking mechanism (4) include the first body (41), the second body (42), some first bearings (43), some second Bearing (44), grafting body (45), the 3rd body (47), some first connectors (48) and some second connectors (49), described First body (41) and threaded the second body (42), described first body are arranged with the body of rod of snap bolt (1) (41) it is located at the rear of the second body (42), circumferentially shape is distributed with the first bearing (43) for the front end of described first body (41), The first connector (48) being rotatably connected is equipped with described first bearing (43), the rear end of described second body (42) is in circle All shapes are distributed with the second bearing (44), and described second bearing (44) is equipped with the second connector (49) being rotatably connected, institute State the rear end of the second connector (49) and the front end of the first connector (48) is rotatably connected, the front end of described second body (42) It is provided with the grafting body (45) being set on the body of rod of snap bolt (1), the body of rod of described snap bolt (1) is arranged with the 3rd set Body (47), described 3rd body (47) and grafting body (45) socket connection.

2. as claimed in claim 1 a kind of unilateral bolt fastener it is characterised in that: described 3rd body (47) include turn Portion (471) and the connecting portion (472) being located at the portion of turning (471) rear end, described connecting portion (472) is enclosed within grafting body (45).

3. as claimed in claim 1 a kind of unilateral bolt fastener it is characterised in that: the cross section of described grafting body (45) is Regular polygon shape.

4. as claimed in claim 1 a kind of unilateral bolt fastener it is characterised in that: the rear end of described first connector (48) It is rotatably connected with the first bearing (43) and the second bearing (44) by axis body respectively with the front end of the second connector (49), described Together with the rear end of the front end of the first connector (48) and the second connector (49) is rotatably connected by axis body.

5. as claimed in claim 1 a kind of unilateral bolt fastener it is characterised in that: also include positioning body (46), described fixed Position body (46) is located at the rear end bottom of one of them the second connector (49), conflicts in round end spiral shell in the lower end of described positioning body (46) On the body of rod of bolt (1).

6. as claimed in claim 1 a kind of unilateral bolt fastener it is characterised in that: the body of rod of described snap bolt (1) Front end is provided with anti-rotation fixed body (11), and described anti-rotation fixed body (11) is regular polygon shape.

7. a kind of unilateral bolt fastener as any one of claim 1 to 6 it is characterised in that: described blocking mechanism (4), when being working condition, the front end face of described first body (41) and the rear end face of the second body (42) are connected with first respectively The rear end face of body (48) and front end face laminating, the front end face of described first body (41) and the rear end face of the second body (42) also divide Do not fit with the rear end face of the second connector (49) and front end face.