CN217669116U

CN217669116U - Auxiliary assembling tool for split nested single-side bolt

Info

Publication number: CN217669116U
Application number: CN202221074419.8U
Authority: CN
Inventors: 张国松; 韩军强; 李泽深; 贾洪日; 郑晓珍
Original assignee: Zhejiang Erjian Steel Structure Co ltd
Current assignee: Zhejiang Erjian Steel Structure Co ltd
Priority date: 2022-04-30
Filing date: 2022-04-30
Publication date: 2022-10-28
Anticipated expiration: 2032-04-30

Abstract

The utility model discloses an auxiliary assembly tool of a split nested unilateral bolt, which comprises a support magnetically attracted on a connecting steel plate of a steel member to be connected; a vertical guide sleeve is fixed on the support, the guide sleeve is in sliding fit with the lifting rod, and an adjusting bolt for tightly abutting against the lifting rod is screwed on the side wall of the guide sleeve; a semicircular clamping ring with an upward opening is fixed on the lifting rod, and a semicircular clamping groove for axially limiting the mounting ring of the unilateral bolt is formed in the inner circumferential surface of the semicircular clamping ring; the mounting ring is provided with four through holes, the rear ends of four mounting rods of the unilateral bolt penetrate through the four through holes of the mounting ring, and the rear end of each mounting rod is connected with a terminal with the outer diameter larger than the aperture of the through hole; a first lug is fixed on the semicircular clamping ring, a second lug is protruded out of the mounting ring, and a positioning pin is inserted into two lugs of the two lugs. The auxiliary assembly tool can enable the four fan-shaped ring flaps to penetrate through the mounting hole and be firmly positioned in the axial direction and the circumferential direction after the four fan-shaped ring flaps are clamped at the front opening.

Description

Auxiliary assembling tool for split nested single-side bolt

Technical Field

The utility model relates to a steel construction technical field specifically says to an auxiliary assembly tool for connecting the unilateral bolt of components of a whole that can function independently nested formula of different steel members.

Background

In the construction of a steel structure, adjacent steel components such as a steel column, a steel beam and a steel floor slab are often required to be connected and fastened, and the conventional method is to screw two connecting steel plates of two steel components to be connected. However, in practical use, special situations that people cannot stand on the other side and can only mount the bolts from one side are often encountered, for example, the other side is a cavity in the middle of the steel upright column, so that the conventional bolt is limited in mounting and use.

Therefore, the applicant develops a split nested unilateral bolt which can be installed from one side only, and the invention patent application is provided in 21 years, and the application number is 2021112369746. The unilateral bolt comprises a mounting ring, four mounting rods and four fan ring petals; each sector ring valve comprises a large diameter part, a small diameter part and a step surface between the large diameter part and the small diameter part; the step surface is clamped at the front opening of the mounting hole, the small-diameter parts are positioned in the mounting hole, the rear end of each small-diameter part is in threaded connection with the front end of a corresponding mounting rod, and the rear end of each mounting rod is connected with the mounting ring; the mounting ring is positioned outside the rear opening of the mounting hole; an insertion seam is formed between every two adjacent fan-shaped ring flaps; the bolt also comprises a main screw, wherein an external thread section of the rear section of the main screw extends out of the rear opening of the mounting hole, and is sleeved with the gasket and screwed with the nut; the rear end of the main screw is connected with an auxiliary screw in a threaded manner; the front section of the main screw rod is provided with four sliding grooves, each sliding groove is in sliding fit with a sliding block, and the outer side of each sliding block is convexly provided with a stay; a lifting head is arranged at the front end of each sliding chute; the front end face of the large-diameter part of each sector ring valve is provided with a bayonet; the four mounting rods are matched with a sliding sleeve in a sliding mode together, and the front end of the sliding sleeve is provided with four inserting rods.

The assembly process of the bolt is as follows.

Workers always stand behind the mounting holes; the four mounting rods are held by hands, the four fan ring petals penetrate through the mounting holes one by one, the step surfaces of the fan ring petals are clamped on the front openings of the mounting holes, the main screw with the stay bars is placed among the four mounting rods, and then the sliding sleeve is sleeved at the rear ends of the four mounting rods and the mounting rings are clamped; thus, the four fan-shaped ring flaps positioned on the front side of the mounting hole form a semi-closed nesting with four insertion seams;

the main screw rod penetrates through the mounting hole by holding the auxiliary screw rod, the four supporting strips completely cross four inserting seams of the semi-closed nesting, the main screw rod is rotated for 45 degrees, the four supporting strips just face four bayonets on the front end surfaces of the four fan ring segments, the main screw rod is pulled backwards, the rear ends of the supporting strips are clamped by the bayonets, the front ends of the supporting strips are lifted, the surfaces of the supporting strips are extruded backwards, and the supporting strips are radially expanded outwards, and the four fan ring segments are expanded outwards to tightly stretch the wall of the mounting hole;

the sliding sleeve is pushed forwards, so that four inserting rods of the sliding sleeve are firmly extruded into the corresponding four inserting seams to form a fully-closed full-circle nesting sleeve, and the full-circle nesting sleeve is tightly extruded with the mounting hole in an interference manner;

and a gasket is sleeved on the external thread section of the main screw rod and screwed into the screw cap, so that the two steel members and the two connecting steel plates are screwed and fastened from a single side.

However, after a period of practical operation, the above one-sided bolt assembling process has the following drawbacks.

After the stepped surface of the sector ring flap is clamped on the front opening of the mounting hole and the main screw is placed between the four mounting rods, the main screw can drop down and press the two mounting rods below, so that the subsequent process of sleeving the sliding sleeves on the four mounting rods can be interfered, and if a worker holds the main screw with one hand, the remaining hand can hardly sleeve the four mounting rods into the sliding sleeve; moreover, even more troublesome, in the process that a worker holds the auxiliary screw rod by hand to pass through the insertion seams of the four fan ring flaps and rotate for 45 degrees, each supporting strip inevitably touches and scrapes the four fan ring flaps, so that each fan ring flap is driven to move forwards axially or rotate circumferentially, the axial and circumferential positions of each fan ring flap are changed, the width and position of the four insertion seams and the circumferential position of each fan ring flap bayonet are also changed, the worker is difficult to smoothly pass through the insertion seams between the fan ring flaps by the main screw rod and the supporting strip, and the supporting strip and the fan ring flap bayonets are difficult to align accurately after rotating for 45 degrees, and the worker often needs to repeat multiple times to succeed in actual operation, which is very cumbersome; even if a worker grasps the mounting ring in the process of extending the main screw forward, the distress that the sector ring valve is jacked forward and the mounting rod is separated from the mounting ring is caused by the fact that the force for pushing the main screw forward is slightly large due to improper operation, and the actual operation experience is poor; moreover, each ring clack is touched and displaced in the process of pushing the main screw forward, which also causes the subsequent process of inserting the forward sliding sleeve into the insertion rod to be jammed and laborious and the operation is difficult.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an axial and circumference location are firm behind enabling four fan ring lamella to pass the mounting hole and block the fore-stock to ensure that main screw rod and stay pass the convenient smooth-going of process of mounting hole and plug joint, the rotatory unilateral bolt's of process of accurate components of a whole that can function independently nested formula of each stay is supplementary assembly tool.

The technical solution of the utility model is to provide an auxiliary assembly tool of split nested unilateral bolt, which comprises a support magnetically attracted on a connecting steel plate of a steel member to be connected; a vertical guide sleeve is fixed on the support, the guide sleeve is in sliding fit with the lifting rod, and an adjusting bolt for tightly abutting against the lifting rod is screwed on the side wall of the guide sleeve; a semicircular clamping ring with an upward opening is fixed on the lifting rod, and a semicircular clamping groove for axially limiting the mounting ring of the unilateral bolt is formed in the inner circumferential surface of the semicircular clamping ring; the mounting ring is provided with four through holes, the rear ends of four mounting rods of the unilateral bolt penetrate through the four through holes of the mounting ring, and the rear end of each mounting rod is connected with a terminal with the outer diameter larger than the aperture of the through hole; a first lug is fixed on the semicircular clamping ring, a second lug protrudes outwards from the mounting ring, and a positioning pin is inserted into two lugs of the two lugs together.

Compared with the prior art, the auxiliary assembling tool for the split nested unilateral bolt has the following advantages.

A worker holds the mounting rods by hands to enable the four fan-shaped ring flaps to penetrate through the mounting holes and clamp the stepped surfaces of the fan-shaped ring flaps at the front openings of the mounting holes, then puts the main screw rods among the four mounting rods, sleeves the sliding sleeves and the mounting rings, and fixes terminals on the rod sections of the through holes of the mounting rings at the rear ends of the mounting rods so as to enable the rear ring surfaces of the mounting rings to be abutted against the terminals; then the support is magnetically adsorbed on the rear surface of a connecting steel plate of a steel member to be connected, the lifting rod is lifted up to enable the semicircular clamping groove of the semicircular clamping ring to just clamp the mounting ring, the adjusting bolt is screwed down, and the height of the lifting rod is locked, so that the mounting ring and the four fan-shaped ring flaps are axially positioned along the main screw rod; then, the positioning pin penetrates through the ear holes of the two lugs, and the circumferential positioning of the mounting ring and the four fan-shaped ring petals is realized. So far, the positions of the four fan ring petals are completely fixed and do not move, and the width and the space position of the insertion seam between the fan ring petals and the circumferential position of each fan ring petal bayonet are fixed and unchanged. Therefore, the process that a worker holds the auxiliary screw rod by hand to enable the main screw rod and the four supporting strips to penetrate through the semi-closed nested four insertion seams is smooth and convenient, and the main screw rod and the four supporting strips cannot form displacement of the fan ring valve even if the fan ring valve is scraped in the process of penetrating through the insertion seams or rotating for 45 degrees, so that the supporting strips can be quickly and accurately aligned with bayonet sockets of the fan ring valve after rotating for 45 degrees, the operation difficulty is obviously reduced, the supporting strips can be clamped into the bayonet sockets basically at one time, and time and labor are saved; in the process of penetrating through the inserting seam, rotating and clamping, workers do not need to hold the mounting ring by hands, and the operation can be finished by one hand; moreover, the width and the spatial position of the insertion seam between the fan-shaped ring flaps are ensured to be unchanged, so that the subsequent process of pushing the sliding sleeve forwards to insert the insertion rod into the insertion seam is also smooth, stable and convenient.

The terminal structure is preferably that the terminal is made of elastomer materials, the front end of the terminal is provided with a blind hole, and the rear end of the corresponding mounting rod is tightly matched in the blind hole; therefore, the terminal can be quickly inserted and tightly matched with the rear end of the mounting rod, the operation is very convenient, and the connecting and positioning requirements of the mounting rod and the mounting ring can be basically met; as long as the operation is normal, the main screw rod is extended forwards to penetrate through the semi-closed nesting by applying normal force, so that the embarrassment that the sector ring valve is excessively jacked forwards and the mounting rod is separated from the mounting ring can not occur; in other words, the terminal is convenient to assemble and can meet the normal assembling and positioning requirements of the sector ring valve.

Another preferable terminal structure is that the front end of the terminal is provided with an internal thread hole, the rear end of the mounting rod is provided with an external thread, and the rear end of the corresponding mounting rod is screwed in the internal thread hole of the terminal; therefore, the rear end of the mounting rod can be firmly connected with the terminal, although the terminal is required to be screwed in the operation process, the operation is slow, the positioning and clamping effect on the fan ring flap is firm, and the fan ring flap can be firmly pulled and connected without moving forwards even if the force for stretching the main screw rod forwards is large, so that the embarrassment that the mounting rod is separated from the mounting ring due to the fact that the fan ring flap is driven by the main screw rod and the supporting strip to be pushed forwards excessively is avoided.

Preferably, the support is fixed with a magnetic bracket for holding and adsorbing the main screw rod of the unilateral bolt through an upright post; therefore, after the stepped surface of the fan ring flap is clamped at the front opening of the mounting hole and the main screw rod is placed between the four mounting rods, the magnetic bracket just adsorbs and supports the main screw rod to prevent the main screw rod from falling down and pressing the two mounting rods below, so that a worker does not need to separate one hand to grasp the main screw rod in the subsequent process of sleeving the sliding sleeve, and can easily operate the four mounting rods to sleeve the sliding sleeve by using two hands, and the operation is more convenient.

As further optimization, the support comprises a top plate and an end plate fixed below the top plate, two electromagnet suckers are fixed at the front part of the end plate, and a battery compartment is fixed at the rear end of the end plate and the lower part of the top plate together; like this, the position of two electro-magnet sucking discs can ensure that the adsorption effect is firm reliable, and the position in electromagnetism storehouse is reasonable, has consolidated the connection and the intensity of end plate and roof, has promoted the wholeness and the firmness of support.

Drawings

Fig. 1 is the structure schematic diagram of the assembly step 1 of the auxiliary assembly tool for the split nested single-side bolt.

Fig. 2 is a schematic structural diagram of the assembling step 2 of the auxiliary assembling tool of the present invention.

Fig. 3 is a schematic structural diagram of the assembling step 3 of the auxiliary assembling tool of the present invention.

Fig. 4 is a schematic structural diagram of the assembling step 4 of the auxiliary assembling tool of the present invention.

Fig. 5 is a schematic structural diagram of the assembling step 5 of the auxiliary assembling tool of the present invention.

Fig. 6 is a schematic structural diagram of the assembling step 6 of the auxiliary assembling tool of the present invention.

Fig. 7 is a partial half sectional structural schematic view of the auxiliary assembling tool assembling step 7 of the present invention.

Shown in the figure are 1, a connecting steel plate, 2, a support, 3, an electromagnet sucker, 4, a battery compartment, 5, a stand column, 6, a main screw rod, 7, a bracket, 8, a guide sleeve, 9, a lifting rod, 10, an adjusting bolt, 11, a semicircular clamping ring, 12, a mounting ring, 13, a semicircular clamping groove, 14, a mounting rod, 15, a terminal, 16, a first lug, 17, a second lug, 18, a positioning pin, 19, a sector ring flap, 20, a sliding sleeve, 21, a supporting strip, 22 and an inserting rod.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-7, the auxiliary assembling tool for split nested single-side bolts of the present invention comprises a support 2 magnetically attracted to a connecting steel plate 1 of a steel member to be connected; the support 2 comprises a top plate and an end plate fixed below the top plate, two electromagnet suckers 3 are fixed on the front portion of the end plate, a battery bin 4 is jointly fixed at the rear end of the end plate and the lower portion of the top plate, and batteries in the battery bin 4 supply power to the electromagnet suckers 3.

The support 2 is fixed with a magnetic bracket 7 for placing and adsorbing a main screw 6 of the unilateral bolt through an upright post 5. The bracket 7 is made of a magnet and is crescent-shaped, the cambered surface of the bracket 7 faces downwards, a guide groove is arranged on the upper plane of the bracket 7, and the main screw 6 is adsorbed and placed in the guide groove of the bracket 7.

The top surface of the support 2 is fixed with a vertical guide sleeve 8, the guide sleeve 8 is in sliding fit with a lifting rod 9, the side wall of the guide sleeve 8 is screwed with an adjusting bolt 10 for abutting against the lifting rod 9, namely the adjusting bolt 10 abuts against the lifting rod 9 on the inner surface of the side wall of the guide sleeve 8. A semicircular clamping ring 11 with an upward opening is fixed on the lifting rod 9, and a semicircular clamping groove 13 for axially limiting a mounting ring 12 of a unilateral bolt is arranged on the inner circumferential surface of the semicircular clamping ring 11. The mounting ring 12 is provided with four via holes, the rear ends of four mounting rods 14 of the unilateral bolt penetrate through the four via holes of the mounting ring 12, and the rear end of each mounting rod 14 is connected with a terminal 15 with an outer diameter larger than the aperture of the via hole. The terminal 15 is preferably made of an elastomer material such as elastic rubber, and the front end of the terminal 15 is provided with a blind hole in which the rear end of the corresponding mounting rod 14 is tightly fitted. Of course, the terminal 15 may also be made of a rigid material, the front end of the terminal 15 is provided with an internal threaded hole, the rear end of the mounting rod 14 is provided with an external thread, and the rear end of the corresponding mounting rod 14 is screwed into the internal threaded hole of the terminal 15.

A first lug 16 is fixed on the semicircular snap ring 11, a second lug 17 protrudes outwards from the mounting ring 12, and a positioning pin 18 is inserted into two lugs of the first lug 16 and the second lug 17 together.

A worker magnetically attracts the support 2 on the connecting steel plate 1 of a steel member to be connected, then holds the mounting rods 14 to enable the four fan-shaped ring flaps 19 to penetrate through the mounting holes one by one, clamps the stepped surfaces of the fan-shaped ring flaps 19 on the front opening of the mounting holes, then puts the main screw 6 among the four mounting rods 14, and magnetically attracts and shelves the main screw 6 on the bracket 7; then, sleeving the sliding sleeve 20 and the mounting rings 12, and fixing the terminals 15 on the rod section of the via hole of each mounting rod 14 penetrating through the mounting ring 12 at the rear end, so that the rear ring surface of the mounting ring 12 is abutted against each terminal 15; then the lifting rod 9 is lifted up to enable the semicircular clamping groove 13 of the semicircular clamping ring 11 to just clamp the mounting ring 12, then the adjusting bolt 10 is screwed down to lock the height of the semicircular clamping ring 11, and the positioning pin 18 is used for locking the two lugs to circumferentially position the mounting ring 12.

The remaining operations are then performed in the same manner as in the prior art.

The main screw 6 passes through the mounting hole, rotates 45 degrees and pulls backwards, so that the stay 21 props open the four sector ring flaps 19 to expand the mounting hole tightly.

And then the sliding sleeve 20 is pushed forward, so that the four inserting rods 22 are hard extruded into the four inserting seams to form a fully-closed full-circle nesting sleeve.

And a gasket is sleeved on the external thread section of the main screw rod 6 and screwed into the nut to complete unilateral assembly.

Claims

1. The utility model provides an auxiliary assembly tool of unilateral bolt of components of a whole that can function independently nested formula which characterized in that: the device comprises a support which is magnetically attracted on a connecting steel plate of a steel member to be connected; a vertical guide sleeve is fixed on the support, the guide sleeve is in sliding fit with the lifting rod, and an adjusting bolt for tightly abutting against the lifting rod is screwed on the side wall of the guide sleeve; a semicircular clamping ring with an upward opening is fixed on the lifting rod, and a semicircular clamping groove for axially limiting the mounting ring of the unilateral bolt is formed in the inner circumferential surface of the semicircular clamping ring; the mounting ring is provided with four through holes, the rear ends of four mounting rods of the unilateral bolt penetrate through the four through holes of the mounting ring, and the rear end of each mounting rod is connected with a terminal with the outer diameter larger than the aperture of the through hole; a first lug is fixed on the semicircular clamping ring, a second lug is protruded out of the mounting ring, and a positioning pin is inserted into two lugs of the two lugs.

2. The auxiliary assembling tool for the split nested single-sided bolt of claim 1, characterized in that: the terminal is made of an elastomer material, a blind hole is formed in the front end of the terminal, and the rear end of the corresponding mounting rod is tightly matched in the blind hole.

3. The auxiliary assembling tool for the split nested single-sided bolt of claim 1, characterized in that: the terminal front end is equipped with the internal thread hole, and the installation pole rear end is equipped with the external screw thread, corresponds the installation pole rear end and closes soon in terminal internal thread hole.

4. The auxiliary assembling tool for the split nested single-sided bolt of claim 1, characterized in that: the support is fixed with a magnetic bracket for placing and adsorbing the unilateral bolt main screw through the upright post.

5. The auxiliary assembling tool for the split nested single-sided bolt of claim 1, characterized in that: the support comprises a top plate and an end plate fixed below the top plate, two electromagnet suckers are fixed on the front portion of the end plate, and a battery compartment is fixed at the rear end of the end plate and the lower portion of the top plate together.