CN215510790U

CN215510790U - Nut screwing device

Info

Publication number: CN215510790U
Application number: CN202121533496.0U
Authority: CN
Inventors: 朱康山
Original assignee: Zhejiang Dadong Wuhangxiao Green Construction Technology Co ltd
Current assignee: Zhejiang Dadong Wuhangxiao Green Construction Technology Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2022-01-14
Anticipated expiration: 2031-07-07

Abstract

The utility model relates to the technical field of fasteners, in particular to a nut screwing device which comprises a rotating device, a nut screwing device and a nut screwing device, wherein the rotating device is used for providing rotating torque; the nut clamping device further comprises a sleeve connected with the rotating device, and a nut hole used for clamping a nut is formed in the sleeve; the nut hole is a through hole; the rotating device drives the sleeve to rotate by acting on the outer side wall of the sleeve. The nut screwing device is simple and convenient to operate, time-saving and labor-saving, is suitable for nut installation of bolts with any length, and is high in adaptability.

Description

Nut screwing device

Technical Field

The utility model relates to the technical field of fasteners, in particular to a nut screwing device.

Background

Nuts are very common fasteners, are often used in combination with bolts or screws, and have application ranges including the mechanical field and the building field; when the nut is used, the nut needs to be screwed down by means of external force, so that the fastening effect can be achieved. In order to improve the nut screwing effect, improve the production efficiency and save the labor cost, many types of automatic or semi-automatic nut screwing devices appear in the market, wherein the automatic or semi-automatic nut screwing devices comprise portable electric wrenches and multifunctional electric drills with nut screwing functions; these devices usually adopt a socket structure to adapt the installation of the nut, for example, a nut socket head assembly disclosed in chinese utility model patent CN201922208153.6, which includes a socket structure, one end of the socket is provided with a nut hole, and the other end is provided with a square hole sleeved with a square shaft of a mechanical wrench.

The nut screwing device with the sleeve structure is more suitable for nut installation in the mechanical field, but is not suitable for nut screwing installation in the building field, because the nuts in the building field are usually installed on longer steel bars or anchor bolts, the installation and fastening positions of the nuts are far away from the end parts of the bolts, and the existing sleeve structure cannot meet the installation requirements; if the length of the sleeve is directly increased, firstly, the operation difficulty is improved, and when the sleeve is rotated, the longer the sleeve is, the easier the end part of the sleeve is thrown outwards, and the safety is lower; secondly, different building scenes, the distance between the nut mounting and fastening position and the bolt end part is different, and the sleeve with single length cannot be well adapted to the requirements of various mounting scenes.

Disclosure of Invention

The utility model aims to provide a nut screwing device aiming at the defects in the prior art so as to solve the technical problems in the prior art; the nut screwing device is simple and convenient to operate, time-saving and labor-saving, is suitable for nut installation of bolts with any length, and is high in adaptability.

The technical solution of the utility model is as follows:

a nut threading device comprising a rotation device for providing a rotation torque; the nut clamping device further comprises a sleeve connected with the rotating device, and a nut hole used for clamping a nut is formed in the sleeve; the nut hole is a through hole; the rotating device drives the sleeve to rotate by acting on the outer side wall of the sleeve.

Preferably, a sleeve gear is arranged on the outer side wall of the sleeve, a gear disc is connected to an output shaft of the rotating device, and the sleeve gear is meshed with the gear disc.

Preferably, the sleeve gear is in transmission connection with the gear disc through a transmission gear.

Preferably, the radii of the sleeve gear and the transmission gear are both larger than the radius of the gear disc.

Preferably, a clamping block for clamping the nut is arranged on the hole wall of the nut hole.

Preferably, the end of the nut hole far away from the fixture block is provided with a chamfer.

Preferably, the device further comprises a rotating device accommodating shell for accommodating the rotating device and a sleeve accommodating shell for accommodating the sleeve, and the rotating device accommodating shell is communicated with the sleeve accommodating shell.

Preferably, a handle is connected to an end of the rotating device accommodating housing, which is far away from the sleeve accommodating housing, and a battery pack for supplying power to the rotating device is arranged in the handle.

Preferably, an elastic part is arranged between the handle and the rotating device accommodating shell.

Preferably, the handle is connected with the rotating device accommodating shell through a hinge structure capable of braking.

The utility model has the beneficial effects that:

the nut mounting device comprises a sleeve which is connected with a rotating device and is provided with a nut hole, wherein the nut hole in the sleeve is a through hole, so that the nut mounting device can be used for mounting a nut on a bolt with any length, and the adaptability is high.

The utility model comprises a sleeve gear and a gear disc which are in meshed connection, and through gear transmission, the torque transmission effect is good and the transmission is stable.

The nut mounting device comprises a transmission gear, the distance between the sleeve and the rotating device can be increased through the transmission gear, and the phenomenon that the distance between the sleeve and the rotating device is too small, the rotating device collides with a bolt and interferes with nut mounting is avoided. The transmission gear and the sleeve gear with the radius larger than that of the gear disc can increase output torque, improve the screwing effect of the nut and facilitate the disassembly and assembly of the nut.

The nut clamping device comprises a clamping block, wherein the clamping block is used for clamping a nut, and meanwhile, a force application point convenient for downward force application is provided, so that the nut is convenient to mount and dismount.

The utility model comprises the handle with the built-in battery pack, thereby facilitating the application of force, and simultaneously getting rid of the limitation of electric wires, so that the whole device is more flexible and has higher practicability. An elastic part is arranged between the handle and the rotating device accommodating shell, and the elastic part can weaken the vibration impact of the rotating device on the handle and improve the stability of the handle.

The rotatable handle can adjust the most adaptive force application angle according to different force application habits of each person, so that the installation effect is improved; the angle of the handle can be adjusted to adapt to the installation of the nut in a narrow space.

Drawings

The utility model is further described below with reference to the accompanying drawings:

fig. 1 is a schematic view of the overall assembly structure of the present invention.

Fig. 2 is a schematic view of the sleeve structure of the present invention.

Fig. 3 is a schematic cross-sectional view of the sleeve of the present invention.

Fig. 4 is a schematic view of the overall assembly structure with the rotating handle of the present invention.

Shown in the figure: the gear wheel comprises a rotating device 1, a gear wheel disc 101, a sleeve 2, a nut hole 201, a fixture block 2011, a chamfer 2012, a sleeve gear 202, a transmission gear 3, a rotating device accommodating shell 4, a sleeve accommodating shell 5, a through hole 501, a handle 6, an elastic part 7 and a bearing 8.

Detailed Description

The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. In addition, references to the terms "vertical," "horizontal," "top," "bottom," "front," "back," "upper," "lower," "inner," "outer," and the like in embodiments of the utility model are based on the orientation or positional relationship shown in FIG. 1, or the orientation or positional relationship in which the product is conventionally used, for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, terms such as "mounted," "connected," and "fixed" in the description are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

A nut runner, referring to fig. 1 to 4, comprising a rotating device 1, said rotating device 1 being adapted to provide a rotating torque; the nut turning device further comprises a sleeve 2 connected with the turning device 1, and a nut hole 201 for clamping a nut is formed in the sleeve 2; the nut hole 201 is a through hole; the rotating device 1 acts on the outer side wall of the sleeve 2 to drive the sleeve 2 to rotate.

Preferably, the outer contour of the sleeve 2 is preferably circular, which is the common shape structure of the sleeve and also facilitates the transmission connection; the rotating device 1 and the sleeve 2 can be connected through transmission connection structures such as a transmission belt and gear engagement, and when the connection mode is adopted, the connection positions between the rotating device 1 and the sleeve 2 are all located on the outer side wall of the sleeve 2, so that the upper part and the lower part of the nut hole 201 are ensured to be free of shielding, and nuts can be conveniently installed on long strip-shaped bolts such as reinforcing steel bars or foundation bolts; when the rotating device 1 rotates, the rotating torque of the rotating device 1 can be transmitted to the outer side wall of the sleeve 2 through transmission of a transmission belt or directly through a gear meshing transmission mode, the sleeve 2 is driven to rotate, and then a nut clamped in the sleeve 2 is screwed into a bolt to finish nut screwing installation. When disassembly is needed, the rotating device 1 is controlled to rotate reversely. And because nut hole 201 is through-hole structure, no matter how long the bolt, how big distance that the nut need be twisted in, all can twist the nut to the end, need not manpower spanner and assist, easy and simple to handle, labour saving and time saving, suitability is high moreover.

Preferably, the nut hole 201 is a through hole, and means that: in building construction, steel bars and anchor bolts which need to be provided with nuts are usually inserted on a horizontal plane and are vertical, so that the nut holes 201 are matched with the nuts and are set to be through hole structures in the vertical direction; when the steel bars and the anchor bolts which are required to be provided with the nuts are in a horizontal structure or an inclined structure, the nut screwing device can be inclined and installed in an adaptive mode according to corresponding angles, the adaptive installation mode is common knowledge, and the adaptive installation mode can be fully understood by persons skilled in the art by combining the content of the utility model, so that the detailed description is omitted and the installation mode is not shown in the attached drawings. For ease of understanding and illustration, the following description is made in terms of the vertical installation of the nut, and is not intended to limit the installation of the nut and the structure of the nut hole 201.

Referring to fig. 1 to 3, a first embodiment of the present invention includes a rotating device housing 4, where a rotating device 1 is installed in the rotating device housing 4, and the rotating device 1 may be a rotating cylinder, a rotating motor, or other devices for providing a rotating torque, which can be selected by those skilled in the art, and will not be described in detail herein. Be connected with toothed disc 101 on rotating device 1's the output shaft, toothed disc 101 is connected with drive gear 3 meshing, drive gear 3 is kept away from toothed disc 101 one side with the sleeve gear 202 meshing that sets up on the lateral wall of sleeve 2 is connected, connects through gear meshing, can with the stable transmission of moment of rotating device 1 output extremely sleeve 2, the transmission is stable. Further, the radius of the sleeve gear 202 and the radius of the transmission gear 3 are both larger than that of the gear disc 101, so that the effect of increasing the output torque can be achieved when the output power is constant, the nut screwing effect can be better when the nut is screwed, the screwed nut can be detached when the nut is detached, and the overall installation and detachment effect is optimized. In addition, the transmission gear 3 is additionally arranged between the rotating device 1 and the sleeve 2, so that the distance between the rotating device 1 and the sleeve 2 can be increased, and the situation that a bolt cannot be inserted due to the fact that the rotating device 1 covers the nut hole 201 is avoided.

Preferably, the rotating device 1 is disposed in a rotating device accommodating case 4, and the sleeve 2 is disposed in a sleeve accommodating case 5, so as to protect the rotating device 1 and the corresponding gear set from dust erosion. The structure of the rotating device accommodating case 4 and the sleeve accommodating case 5 depends on the specific gear size structure, the size structure of the rotating device 1, and the size structure of the sleeve 2; for reference, two different structures of the rotating device accommodating housing 4 are provided in fig. 1 and fig. 4, respectively, and those skilled in the art can set themselves in combination with the disclosure of the present invention, so that the detailed description is omitted here.

Preferably, a through hole 501 is formed in the sleeve accommodating shell 5, the size of the through hole 501 is matched with the outer size of the sleeve 2, the inner diameter of the through hole 501 is larger than the outer diameter of the sleeve 2, so that the bearing 8 is conveniently arranged between the inner wall of the sleeve accommodating shell 5 and the sleeve 2, the assembly stability of the sleeve 2 is improved, the rotating effect of the sleeve 2 is optimized, and the sleeve 2 is prevented from generating large friction between the inner wall of the sleeve accommodating shell 5 and the inner wall of the sleeve accommodating shell 2. The mounting and fastening of the bearing 8 is common knowledge and will be fully understood by those skilled in the art in conjunction with the present invention, and will not be described in detail herein. In this embodiment, the bearings 8 are respectively installed on both sides of the sleeve gear 202, so as to avoid interference with the meshing rotation between the transmission gear 3 and the sleeve gear 202, and at the same time, to stably support the sleeve 2.

Preferably, when the nut is tightened, the sleeve 2 is fitted to the nut from above; when the nut to be installed is a nut of a flange nut structure, the flange end of the nut is directly clamped at the lower end of the nut hole 201, so that the nut cannot penetrate through the nut hole 201, and the nut can be driven to move downwards to be screwed down by applying downward pressure to the sleeve 2; when the nut to be installed is a nut with a right hexagonal prism structure, after the sleeve 2 is sleeved on the nut, the nut can directly penetrate out of the nut hole 201; therefore, the wall of the nut hole 201 needs to be provided with the fixture blocks 2011, when the sleeve 2 is sleeved on the nut from above, the upper end of the nut abuts against the lower end of the fixture blocks 2011, so that the nut is prevented from directly passing through the nut hole 201, and the nut is convenient to clamp and position; by pressing the sleeve 2 downwards, the nut can be driven to move downwards to be screwed down. It should be noted that the size of the fixture block 2011 cannot be too large, so that the situation that the fixture block 2011 rubs against the bolt is avoided; the specific size of the fixture 2011 can be set by a person skilled in the art according to actual production conditions, and is not described in detail herein. Further preferably, the end of the nut hole 201 away from the fixture block 2011 is provided with a chamfer 2012 for guiding to facilitate the fitting of the sleeve 2 onto the nut.

Preferably, a handle 6 is connected to an end of the rotating device accommodating housing 4 away from the sleeve accommodating housing 5, and the handle 6 is grasped to apply a downward force, so that a better and more stable force application effect can be achieved. The handle 6 and the sleeve accommodating shell 5 can be connected through a detachable structure such as a threaded structure, a buckling structure and the like, and can also be connected through a non-detachable structure such as a welded structure and the like, and the connecting structures are common general knowledge contents, so detailed description is omitted here. The handle 6 is provided with a battery pack for supplying power to the rotating device 1. The battery pack is connected to the rotating device 1 for supplying power to the rotating device 1, and the connection between the battery pack and the rotating device 1 is common knowledge and can be fully understood by those skilled in the art in combination with the content of the present invention, so that the detailed description thereof is omitted and the illustration is omitted.

Preferably, an elastic portion 7 is disposed between the handle 6 and the rotating device accommodating case 4, and the elastic portion 7 may be a spring structure or other elastic structures made of elastic materials such as rubber or silica gel, which can be fully understood by those skilled in the art in conjunction with the present disclosure and set by themselves, and therefore will not be described in detail herein. When rotating device 1 drives sleeve 2 rotates, produces certain vibration easily, through elastic component 7 can weaken rotating device 1 is right the vibration impact of handle 6 improves handle 6's stability, and then improves the stability of application of force, optimizes the application of force effect of whole device.

As the second embodiment of the present invention, referring to fig. 4, based on the first embodiment, a handle 6 is included, and the handle 6 is connected with the rotating device accommodating housing 4 through a hinge structure capable of braking. The hinge structure capable of braking is as follows: handle 6 with link to each other through hinge structure between the rotating device holding casing 4, at this moment, handle 6 with but relative rotation between the rotating device holding casing 4 works as when handle 6 rotates certain angle, can be through alternate the mode such as pin or screw up articulated bolt or alternate the buckle, right handle 6 with fix a position the fastening between the rotating device holding casing 4, fixed back, handle 6 with rotating device holding casing 4 just forms the fixed assembly structure that has certain contained angle.

When the space for installing the nut is small, the handle 6 can be rotated, the included angle between the lower end surface of the nut and the handle is increased, the handle 6 is prevented from being clamped, and the nut cannot be installed to the bottom; by adjusting the angle of the handle 6, more installation environments can be adapted. Meanwhile, in the process of screwing the nut, force needs to be applied downwards, but the habitual force application points and the force application directions of each person are different, and the force application habits of different operators can be adapted by adjusting the angle between the handle 6 and the sleeve 2; moreover, the handle 6 is properly inclined, and the component force in the vertical direction can be increased to improve the mounting effect of the nut when the total output force is constant.

In the description herein, references to the description of the terms "embodiment," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A nut runner comprising a turning device (1), said turning device (1) being adapted to provide a turning moment; the nut turning device is characterized by further comprising a sleeve (2) connected with the turning device (1), wherein a nut hole (201) for clamping a nut is formed in the sleeve (2); the method is characterized in that:

the nut hole (201) is a through hole; the rotating device (1) acts on the outer side wall of the sleeve (2) to drive the sleeve (2) to rotate.

2. The nut runner apparatus of claim 1 further comprising: the outer side wall of the sleeve (2) is provided with a sleeve gear (202), an output shaft of the rotating device (1) is connected with a gear disc (101), and the sleeve gear (202) is meshed with the gear disc (101) and connected.

3. The nut runner apparatus of claim 2 further comprising: the sleeve gear (202) is in transmission connection with the gear disc (101) through a transmission gear (3).

4. The nut runner apparatus of claim 3 further comprising: the radiuses of the sleeve gear (202) and the transmission gear (3) are both larger than the radius of the gear disc (101).

5. The nut runner apparatus of claim 1 further comprising: the wall of the nut hole (201) is provided with a clamping block (2011) for clamping the nut.

6. The nut runner apparatus of claim 5 further comprising: the end part, far away from the clamping block (2011), of the nut hole (201) is provided with a chamfer (2012).

7. A nut runner according to any one of claims 1 to 6, further comprising: the rotating device is characterized by further comprising a rotating device accommodating shell (4) used for accommodating the rotating device (1) and a sleeve accommodating shell (5) used for accommodating the sleeve (2), wherein the rotating device accommodating shell (4) is communicated with the sleeve accommodating shell (5).

8. The nut runner apparatus of claim 7 further comprising: one end of the rotating device accommodating shell (4) far away from the sleeve accommodating shell (5) is connected with a handle (6), and a battery pack used for supplying power to the rotating device (1) is arranged in the handle (6).

9. The nut runner apparatus of claim 8 further comprising: an elastic part (7) is arranged between the handle (6) and the rotating device accommodating shell (4).

10. The nut runner apparatus of claim 8 further comprising: the handle (6) is connected with the rotating device accommodating shell (4) through a hinge structure capable of braking.