CN112171566B

CN112171566B - Multilateral nut pre-tightening device for construction site

Info

Publication number: CN112171566B
Application number: CN202010914807.1A
Authority: CN
Inventors: 龚琴英
Original assignee: Individual
Current assignee: Zaozhuang Dongcheng Machinery Manufacturing Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2022-07-12
Anticipated expiration: 2040-09-03
Also published as: CN112171566A

Abstract

The invention relates to a pre-tightening device, in particular to a multi-edge nut pre-tightening device for a construction site. The technical problem how to design one kind can make things convenient for operating personnel to screw the nut on the bolt tentatively, avoids the finger ache, and work efficiency is high, and can also avoid the multilateral nut preloading device for building site of incised wound. A multilateral nut preloading device for a construction site comprises: a handle is fixedly connected to one side of the outer shell; and the driving device is arranged on the shell and used for driving the nut to rotate. According to the invention, the belt is in contact with the nut, the belt is pulled to move backwards to tighten the belt, the rotating handle is pulled to rotate, the belt is rotated to drive the nut to rotate, and the nut is rotated to be screwed on the bolt preliminarily.

Description

Multilateral nut pre-tightening device for construction site

Technical Field

The invention relates to a pre-tightening device, in particular to a multi-edge nut pre-tightening device for a construction site.

Background

The nut is a nut, and is screwed together with a bolt or a screw rod to play a fastening role, one element which is necessary for all production and manufacturing machines is divided into carbon steel, stainless steel, non-ferrous metal (such as copper) and other types according to different materials, and during construction in a construction site, the nut and the bolt are matched to fix an object, and the nut is screwed on the bolt.

At present, the nut is tentatively screwed all through the manual nut rotation of people, at first people remove nut and bolt contact, and the finger is turning the nut in continuous and is rotating tentatively and screw on the bolt, because the finger needs continuous removal, and time is a long time, and the finger is ache easily and influences work efficiency, and the hand is direct and the nut contact, is cut by the sharp-pointed part of nut easily.

Consequently, need one kind very much and can make things convenient for operating personnel to screw the nut on the bolt tentatively, avoid the finger ache, work efficiency is high, and can also avoid the multilateral nut preloading device for building site of incised wound to solve the problem that exists among the prior art.

Disclosure of Invention

In order to overcome the defects that fingers are easy to ache and affect the working efficiency due to the fact that the fingers need to move continuously for a long time, and hands are directly contacted with nuts and are easy to cut by sharp parts of the nuts, the invention has the technical problems that: the utility model provides a can make things convenient for operating personnel to screw the nut on the bolt tentatively, avoid the finger ache, work efficiency is high, and can also avoid the multilateral nut preloading device for building site of incised wound.

The technical implementation scheme of the invention is as follows: a multilateral nut preloading device for a construction site comprises: a handle is fixedly connected to one side outside the shell; the driving device is arranged on the shell and used for driving the nut to rotate; and the positioning device is arranged on the shell, is in contact fit with the driving device and is used for resetting the driving device.

Further, the driving device includes: the first rotating shaft is rotatably connected between the middle parts of the two sides of the shell far away from the positioning device in a penetrating manner; the rotating handle is fixedly connected to one end of the first rotating shaft; the driving rotating wheel is fixedly sleeved on the circumferential direction of one side of the first rotating shaft and is positioned in the shell; a belt wound between the drive pulley and the positioning device.

Further, the positioning device comprises: the limiting plates are symmetrically and fixedly connected between two sides in the shell close to the driving rotating wheel; the mounting plate is slidably connected to the middle part of the limiting plate in a penetrating manner; the resetting rotating wheel is rotatably arranged on one side of the mounting plate close to the belt and is in contact fit with the belt; the first return springs are symmetrically connected between one side of the limiting plate far away from the return rotating wheel and one side of the mounting plate far away from the belt; the inclined grooves are symmetrically arranged on two sides of the shell far away from the first rotating shaft; the guide block is slidably placed in the chute; the second rotating shaft is rotatably connected between the middle parts of the two guide blocks on each side in a penetrating manner; the limiting rotating wheel is fixedly sleeved on the periphery of one side of the second rotating shaft and is positioned in the shell, and the limiting rotating wheel is in contact fit with the belt.

Further, still including preceding roof device, preceding roof device including: the sliding block is arranged on one side of the shell on the same side with the rotating handle in a sliding mode; the straight groove plate is sleeved between the circumferential directions of one sides of the two second rotating shafts far away from the belt in a sliding manner; the contact plate is fixedly connected to the middle of the outer side of the slotted plate facing the first rotating shaft, and one side of the contact plate facing the third return spring is fixedly connected with one side of the sliding block far away from the belt; the third rotating shaft is rotatably penetrated between two sides of the shell close to the grip; the rotating strip is fixedly connected to the circumferential direction of one side of the third rotating shaft far away from the belt and matched with the contact plate; the movable handle is fixedly connected to the periphery of one side of the third rotating shaft close to the belt, and the tail end of the movable handle penetrates through the shell; the second return spring is connected between one side of the movable handle and one side of the handle; the fixed block is fixedly connected to one side, close to the sliding block and the driving rotating wheel, in the shell; and the third return spring is symmetrically connected between one side of the sliding block facing the first rotating shaft and one side of the fixed block far away from the driving rotating wheel.

Further, the method also comprises the following steps: the hollow sleeve is fixedly sleeved on one side of the rotating handle far away from the shell in the circumferential direction.

Further, the method also comprises the following steps: the limiting opening is formed in one side, away from the handle, of the shell, and is the same as the rotating strip; the limiting column is slidably penetrated in the limiting port and is in sliding fit with the limiting port; and the fourth reset spring is connected between one side of the limiting column far away from the grip and one side in the shell.

The invention has the following advantages:

1. through making belt and nut contact, this device of pulling backward movement makes the belt tight, and the pulling rotates the handle rotation, just also makes the belt rotate and drives the nut rotation, and the nut rotates and tentatively screws on the bolt, so, need not the continuous wrench movement nut of human finger, and is more laborsaving, still convenient, and work efficiency is high.

2. Through the effect of preceding roof-mounting, can make the belt tighten the back and contact with the nut, so, make things convenient for the belt to tighten and hug closely with the nut more.

3. Through the effect of hollow cover, can increase the frictional force with the hand, so, can make operating personnel's more firm holding the rotation handle rotate.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a schematic view of a first partial body structure according to the present invention.

FIG. 3 is a schematic view of a second partial body structure according to the present invention.

In the drawings above: 1: housing, 2: handle, 3: drive device, 31: first rotation axis, 32: drive pulley, 33: turning handle, 34: a belt, 4: positioning device, 41: chute, 42: second rotation axis, 43: limiting runner, 44: limiting plate, 45: mounting plate, 46: reset wheel, 47: first return spring, 48: guide block, 6: front roof device, 61: third rotation axis, 62: movable handle, 63: second return spring, 64: rotating bar, 65: slider, 66: fixed block, 67: third return spring, 68: slotted plate, 69: contact plate, 7: hollow sleeve, 8: spacing mouth, 9: spacing post, 10: and a fourth return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example 1

The utility model provides a multilateral nut preloading device is used in building site, as shown in fig. 1 and fig. 2, including shell 1, handle 2, drive arrangement 3 and positioner 4, the rigid coupling has handle 2 in the middle of the outer right side front portion of shell 1, is equipped with drive arrangement 3 between the middle of shell 1 top rear side and the bottom rear side, and shell 1 front portion is equipped with positioner 4, and positioner 4 and the contact cooperation of drive arrangement 3.

The driving device 3 comprises a first rotating shaft 31, a driving runner 32, a rotating handle 33 and a belt 34, the first rotating shaft 31 is rotatably connected between the middle part of the rear side of the top and the middle part of the rear side of the bottom of the housing 1, the rotating handle 33 is fixedly connected at the center of the top of the first rotating shaft 31, the driving runner 32 is fixedly connected at the middle part of the first rotating shaft 31 in the circumferential direction, and the belt 34 is wound between the driving runner 32 and the positioning device 4.

The positioning device 4 comprises a second rotating shaft 42, a limit runner 43 and a limit plate 44, mounting panel 45, runner 46 resets, first reset spring 47 and guide block 48, shell 1 top front side left and right sides and bottom front side left and right sides all opened chute 41, the slidingtype guide block 48 that is equipped with in chute 41, all be connected with second rotation axis 42 between two guide blocks 48 on the left side and between two guide blocks 48 on the right side in the rotary type, second rotation axis 42 lower part circumference rigid coupling has spacing runner 43, belt 34 is walked around two spacing runners 43 rather than the cooperation, bilateral symmetry rigid coupling has limiting plate 44 between shell 1 top front side and the interior bottom front side, the wearing of limiting plate 44 middle part slidingtype has mounting panel 45, the rotary type of mounting panel 45 outer end is connected with runner 46 resets, runner 46 and the cooperation of belt 34 medial surface contact, be connected with first reset spring 47 between mounting panel 45 front and back inboard middle part and the limiting plate 44 medial surface of inboard side.

Firstly, an operator holds the handle 2 to move the device to enable the driving device 3 to be in contact with a nut, then pulls the device to move backwards, the device moves backwards to be attached to the nut, stops pulling the device to drive the driving device 3 to move backwards, the driving device 3 moves backwards to drive the positioning device 4 to operate, then pulls the driving device 3 to rotate, the driving device 3 rotates to drive the nut to rotate, the nut rotates to be screwed on the bolt preliminarily, the driving device 3 stops being pulled to rotate to drive the nut to rotate, then the device is moved to enable the driving device 3 to be separated from the nut, then the driving device 3 is loosened, the positioning device 4 operates to reset to drive the driving device 3 to operate and reset, and therefore, the nut can be screwed on the bolt preliminarily, and the subsequent screwing of people is facilitated.

Firstly, an operator moves the device to enable a belt 34 to be in contact with a nut, the nut is located on the inner side of the belt 34 at the moment, then the shell 1 is pulled to move backwards, the shell 1 moves backwards to drive the positioning device 4 to operate, the positioning device 4 operates to tighten the belt 34, the belt 34 is tightened to be tightly attached to the nut, the rotating handle 33 is pulled to rotate, the rotating handle 33 rotates to drive the first rotating shaft 31 to rotate, the first rotating shaft 31 rotates to drive the driving runner 32 to rotate, the driving runner 32 rotates to drive the belt 34 to rotate through the positioning device 4, the belt 34 rotates to drive the nut to rotate, the nut rotates to be screwed on a bolt preliminarily, when the nut is screwed preliminarily, the rotating handle 33 stops being pulled to rotate, the device is moved to enable the belt 34 to be separated from the nut, the rotating handle 33 is loosened, and the positioning device 4 operates to reset to drive the belt 34 to reset.

When the belt 34 contacts with the nut, the housing 1 is pulled to move backwards, the housing 1 moves backwards to drive the guide block 48 to move through the chute 41, the guide block 48 moves to drive the second rotating shaft 42 to move inwards through the chute 41, the second rotating shaft 42 moves inwards to drive the limiting rotating wheel 43 to move inwards, the limiting rotating wheel 43 moves inwards to tighten the belt 34, the belt 34 tightens to drive the resetting rotating wheel 46 to move inwards, the resetting rotating wheel 46 moves inwards to drive the mounting plate 45 to move inwards, the first resetting spring 47 is stretched to pull the rotating handle 33 to rotate, the driving rotating wheel 32 also drives the belt 34 to rotate through the limiting rotating wheel 43, the belt 34 rotates to drive the nut to rotate and be screwed on the bolt, after the nut is screwed, the device is moved to separate the belt 34 from the nut, the mounting plate 45 moves outwards to drive the resetting rotating wheel 46 to move outwards due to the action of the first resetting spring 47, the reset rotating wheel 46 resets to drive the belt 34 to move and reset, the belt 34 resets to drive the limit rotating wheel 43 to reset, and the second rotating shaft 42 also resets.

Example 2

In addition to embodiment 1, as shown in fig. 1 and fig. 3, the front top device 6 further includes a front top device 6, the front top device 6 includes a third rotating shaft 61, a movable handle 62, a second return spring 63, a rotating strip 64, a sliding block 65, a fixed block 66, a third return spring 67, a slotted plate 68 and a contact plate 69, the third rotating shaft 61 is rotatably connected between the middle of the right side of the top and the middle of the right side of the bottom of the housing 1, the movable handle 62 is fixedly connected to the middle of the third rotating shaft 61 in the circumferential direction, the outer end of the movable handle 62 penetrates through the front of the right side of the housing 1, the second return spring 63 is connected between the left side of the rear side of the movable handle 62 and the middle of the front side of the grip 2, the rotating strip 64 is fixedly connected to the upper portion of the third rotating shaft 61 in the circumferential direction, the slotted plate 68 is slidably arranged between the upper portions of the second rotating shafts 42 on the left and right sides in the circumferential direction, the slotted plate 68 is located above the housing 1, the slotted plate 69 is fixedly connected to the middle of the rear side of the outer side of the slotted plate 68, the contact plate 69 is matched with the rotating strip 64, the middle part of the front side of the upper part of the shell 1 is provided with a sliding block 65 in a sliding way, the middle of the top of the sliding block 65 is fixedly connected with the front side of the bottom of the contact plate 69, the middle of the front side of the top in the shell 1 is fixedly connected with a fixed block 66, and the front side of the fixed block 66 and the rear side of the sliding block 65 are symmetrically connected with a third return spring 67.

Firstly, an operator pulls the movable handle 62 to swing backwards, the movable handle 62 swings backwards to drive the third rotating shaft 61 to rotate backwards, the second return spring 63 is compressed, the third rotating shaft 61 rotates backwards to drive the rotating strip 64 to rotate backwards, the rotating strip 64 rotates backwards to be in contact with the contact plate 69, the contact plate 69 moves forwards to drive the straight-line groove plate 68 to move forwards, the third return spring 67 stretches, the straight-line groove plate 68 moves forwards to drive the second rotating shaft 42 to move forwards, the second rotating shaft 42 moves forwards to drive the guide block 48 to move in the inclined groove 41, the guide block 48 also drives the limiting runner 43 to move forwards through the second rotating shaft 42 and move inwards, the limiting runner 43 moves inwards to tighten the belt 34, then the device is moved to enable the belt 34 to be in contact with the nut, the rotating handle 33 is pulled to rotate, and the belt 34 drives the nut to be preliminarily screwed on the bolt. When the nut is preliminarily screwed, the rotating handle 33 stops being pulled to rotate, the device is moved to separate the belt 34 from the nut, the movable handle 62 is loosened, the movable handle 62 swings outwards to reset due to the action of the second reset spring 63, the movable handle 62 swings outwards to drive the third rotating shaft 61 to rotate forwards and reset, the third rotating shaft 61 rotates forwards to drive the rotating strip 64 to reset and separate from the contact plate 69, and meanwhile, under the action of the third reset spring 67, the contact plate 69 resets and drives the second rotating shaft 42 to move backwards and reset through the straight-line groove plate 68. Thus, tightening of the strap 34 against the nut is facilitated.

Example 3

On the basis of the

embodiments

1 and 2, as shown in fig. 1 and 2, the device further comprises a hollow sleeve 7, and the hollow sleeve 7 is fixedly sleeved on the upper part of the rotating handle 33.

Still including having spacing post 9 and fourth reset spring 10, open 1 top front side left part of shell has spacing mouthful 8, the sliding type be equipped with the spacing post 9 of rotating strip 64 complex in the spacing mouthful 8, be connected with fourth reset spring 10 between the left surface upper portion front side in 9 left surfaces lower parts of spacing post and the shell 1.

When the operator holds the rotating handle 33, the hollow sleeve 7 is in contact with the hand to increase friction. In this way, the operator can more firmly hold the turning handle 33 and turn it.

Initially, fourth reset spring 10 is tensile state, and when needs made this device, the spacing post of pulling 9 forward moves to the maximum stroke, and spacing mouth 8 is spacing not to spacing 9, loosens spacing post 9, because of fourth reset spring 10's effect, spacing post 9 backward move not spacing to rotating strip 64, can use this device. After the device is used, the limiting column 9 is pulled to move forwards to the maximum stroke, the fourth reset spring 10 is stretched, the limiting column 9 is pulled to move a little distance leftwards, the limiting column 9 is loosened, and the limiting column 9 moves backwards to be limited by the limiting opening 8 under the action of the fourth reset spring 10. In this manner, rotation of the rotating bar 64 during movement of the device is avoided.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a multilateral nut preloading device is used in building site which characterized by, including:

the device comprises a shell (1), wherein a handle (2) is fixedly connected to one side of the outer part of the shell (1);

the driving device (3) is arranged on the shell (1) and is used for driving the nut to rotate;

the positioning device (4) is arranged on the shell (1), is in contact fit with the driving device (3) and is used for resetting the driving device (3);

a first rotating shaft (31), wherein the first rotating shaft (31) is rotatably penetrated between the middle parts of two sides of the shell (1) far away from the positioning device (4);

a rotating handle (33), wherein the rotating handle (33) is fixedly connected with one end of the first rotating shaft (31);

the driving rotating wheel (32) is fixedly sleeved on the circumferential direction of one side of the first rotating shaft (31) and is positioned in the shell (1);

a belt (34), said belt (34) being wound between said driving wheel (32) and said positioning device (4);

the limiting plate (44) is symmetrically and fixedly connected between two sides in the shell (1) close to the driving rotating wheel (32);

the mounting plate (45), the mounting plate (45) is slidably connected to the middle part of the limiting plate (44) in a penetrating manner;

the resetting rotating wheel (46) is rotatably arranged on one side of the mounting plate (45) close to the belt (34) and is in contact fit with the belt (34);

the first return spring (47), the first return spring (47) is symmetrically connected between the side of the limit plate (44) far away from the return rotating wheel (46) and the side of the mounting plate (45) far away from the belt (34);

the inclined grooves (41) are symmetrically arranged on two sides of the shell (1) far away from the first rotating shaft (31);

a guide block (48), wherein the guide block (48) is slidably placed in the chute (41);

the second rotating shaft (42), the second rotating shaft (42) is rotatably connected between the middle parts of the two guide blocks (48) on each side in a penetrating way;

the limiting rotating wheel (43) is fixedly sleeved on the circumferential direction of one side of the second rotating shaft (42) and is positioned in the shell (1), and the limiting rotating wheel (43) is in contact fit with the belt (34);

the sliding block (65), the sliding block (65) is placed on one side of the shell (1) on the same side with the rotating handle (33) in a sliding mode;

the straight groove plate (68) is sleeved between the circumferential directions of one sides of the two second rotating shafts (42) far away from the belt (34) in a sliding manner;

a third rotating shaft (61), wherein the third rotating shaft (61) is rotatably connected between two sides of the shell (1) close to the grip (2) in a penetrating way;

the movable handle (62) is fixedly connected to the periphery of one side of the third rotating shaft (61) close to the belt (34), and the tail end of the movable handle (62) penetrates through the shell (1);

the second return spring (63), the said second return spring (63) is connected to the said activity handle (62) one side and said one side of handhold (2);

the fixed block (66), the said fixed block (66) is affixed to the one side in the said outer casing (1) close to said slide block (65) and said drive runner (32);

a third return spring (67), wherein the third return spring (67) is symmetrically connected between the side of the sliding block (65) facing the first rotating shaft (31) and the side of the fixed block (66) far away from the driving rotating wheel (32);

the contact plate (69) is fixedly connected to the middle of the outer side of the slotted plate (68) facing the first rotating shaft (31), and one side of the contact plate (69) facing the third return spring (67) is fixedly connected with one side of the sliding block (65) far away from the belt (34);

a rotating strip (64), wherein the rotating strip (64) is fixedly connected to the circumferential direction of the third rotating shaft (61) far away from the belt (34), and is matched with the contact plate (69).

2. A multi-sided nut pretensioning device for a worksite according to claim 1, further comprising:

the hollow sleeve (7) is fixedly sleeved on one side of the rotating handle (33) far away from the shell (1) in the circumferential direction.

3. A multi-sided nut pretensioning apparatus for a worksite according to claim 2, further comprising:

the limiting opening (8) is formed in one side, away from the grip (2), of the shell (1) and on the same side as the rotating strip (64) through the limiting opening (8);

the limiting column (9), the limiting column (9) is slidably connected in the limiting opening (8) in a penetrating manner, and the limiting column is in sliding fit with the limiting opening (8);

the fourth return spring (10), the fourth return spring (10) connect keep away from the handle (2) between spacing post (9) one side with shell (1) inside one side.