CN211923564U

CN211923564U - Precession device

Info

Publication number: CN211923564U
Application number: CN201922307264.2U
Authority: CN
Inventors: 向辉龙; 陈周星; 张旭强; �田�浩
Original assignee: Shenzhen Road & Bridge Construction Group Co ltd
Current assignee: Shenzhen Road & Bridge Construction Group Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-11-13
Anticipated expiration: 2029-12-19

Abstract

The utility model belongs to the technical field of building engineering, especially, relate to a precession device. The screw-in device comprises: the precession structure comprises a rotating head, wherein a rotating cavity with an open cavity structure is formed in the end face of one end of the rotating head, and the cavity depth direction of the rotating cavity is arranged along the length direction of the rotating head; and a coupling structure including a rotary shaft driven to rotate by the driver; wherein, the output shaft of driver is connected to the one end of rotation axis, and the other end of rotation axis is connected the other end of rotating head, and the cross sectional area of rotatory chamber is gradually expanded the setting towards the direction that deviates from the rotation axis, and the rotating head just compresses tightly in cup jointing the end through rotatory chamber and overcoat, and the maximum dimension that cup joints the end along its radial direction is less than the maximum dimension of rotatory chamber along the radial direction of rotating head and is greater than the minimum dimension of rotatory chamber along the radial direction of rotating head. The utility model discloses can improve reinforcing bar and threaded sleeve's connection efficiency and commonality height.

Description

Precession device

Technical Field

The utility model belongs to the technical field of building engineering, especially, relate to a precession device.

Background

At present, in the construction process of constructional engineering, mechanical connection of steel bars is a steel bar connection method which is frequently used. In the mechanical connection of the steel bars, the steel bars are connected by adopting a threaded sleeve, which is a very common connection mode.

Before the steel bars are connected, external threads are machined at one end of the steel bars, and then the threaded sleeve is manually screwed to one end of the steel bars. When large batch reinforcing bar and threaded sleeve's is connected, it is often inefficient to screw in threaded sleeve by hand, need to change the precession instrument that corresponds again to the threaded sleeve of equidimension not in addition, leads to inefficiency, and the precession instrument of difference still leads to the construction cost height moreover.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a precession machine aims at solving the problem of how to improve the connection efficiency of threaded sleeve and reinforcing bar and improve precession machine's commonality.

The utility model provides a precession ware uses with the driver cooperation to be used for with the rotatory spiro union of first structure to second structure, wherein, first structure has the overlap end, the precession ware includes:

the precession structure comprises a rotating head, wherein a rotating cavity with an open cavity structure is formed in the end face of one end of the rotating head, and the cavity depth direction of the rotating cavity is arranged along the length direction of the rotating head; and

a coupling structure including a rotation shaft driven to rotate by the driver;

the rotary head is sleeved outside the rotary cavity and tightly pressed on the sleeved end, and the maximum size of the sleeved end along the radial direction of the sleeved end is smaller than the maximum size of the rotary cavity along the radial direction of the rotary head and larger than the minimum size of the rotary cavity along the radial direction of the rotary head.

The technical effects of the utility model are that: through with the rotating head overcoat in the telescopic end that cup joints of screw thread, rethread driver drive rotating head rotates, and screw thread sleeve rotates along with the rotating head in the lump to can be with the automatic spiro union of screw thread sleeve to the screw thread end of reinforcing bar, operation process is simple and connection efficiency is high. And the cross section area of the rotating cavity is gradually enlarged towards the direction deviating from the connecting shaft structure, so that the rotating head can be matched with the threaded sleeves with different sizes, the universality of the propeller is improved, and the cost is saved.

Drawings

Fig. 1 is a perspective view of a rotary head of a propeller according to an embodiment of the present invention;

fig. 2 is a perspective view of the rotary head of fig. 1 in another embodiment;

fig. 3 is a perspective view of a rotating shaft of the screw feeder according to the embodiment of the present invention;

fig. 4 is a perspective view of a rotary head of fig. 1 in a further embodiment;

fig. 5 is a perspective view illustrating a rotary shaft in accordance with still another embodiment of fig. 2.

The correspondence between reference numbers and names in the drawings is as follows:

100. a screw driver; 10. a precession structure; 11. rotating the head; 12. a damping layer; 111. a rotating chamber; 112. rotating the hole; 20. a rotating shaft; 113. a limiting groove; 23. a limiting column; 21. a shaft sleeve; 22. a shaft lever; 211. a limiting threaded hole; 221. an adjustment groove;

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "vertical", "parallel", "bottom", "angle", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship.

Referring to fig. 1 to 3, an embodiment of the present invention provides a screw driver 100, which is used in cooperation with a driver and is used for rotationally screwing a first structural member to a second structural member, wherein the first structural member has a socket end. Further, in this embodiment, the first structural member is a threaded sleeve provided with an internal thread, and the second structural member is a steel bar provided with an external thread at one end. The threaded sleeve can be screwed to one end of the steel bar under the action of torque. The screw 100 includes a screw structure 10 and a coupling structure. Precession structure 10 includes rotating head 11, and the terminal surface of rotating head 11 one end is seted up and is the rotatory chamber 111 of opening cavity structure, and the chamber depth direction in rotatory chamber 111 sets up along rotating head 11's length direction. Specifically, the rotary head 11 has a frustum shape and is made of a stainless steel material, and both bottom surfaces of the rotary head 11 have a circular shape. The coupling structure includes a rotary shaft 20, and the driver drives the rotary shaft 20 to rotate. One end of the rotary shaft 20 is connected to an output shaft of the driver, and the other end of the rotary shaft is connected to the other end of the rotary head 11. The driver drives the rotary shaft 20 to rotate, thereby rotating the rotary head 11 together. The cross-sectional area of the rotating cavity 111 is gradually enlarged toward the direction away from the rotating shaft 20, the rotating head 11 is sleeved outside and pressed on the sleeved end through the rotating cavity 111, and the maximum size of the sleeved end along the radial direction thereof is smaller than the maximum size of the rotating cavity 111 along the radial direction of the rotating head 11 and larger than the minimum size of the rotating cavity 111 along the radial direction of the rotating head 11.

Through 11 overcoat of rotating head in the telescopic end that cup joints of screw thread, rethread driver drive rotating head 11 rotates, and screw thread sleeve rotates along with 11 the lump of rotating head to can lock the automatic spiro union of screw thread sleeve to the screw thread end of reinforcing bar, operation process is simple and connection efficiency is high. And the cross-sectional area of the rotation cavity 111 is gradually enlarged towards the direction departing from the shaft connecting structure, so that the rotation head 11 can be matched with the threaded sleeves with different sizes, and the universality of the propeller 100 is improved.

In one embodiment, the cross-sectional shape of the rotation chamber 111 is circular, elliptical, or polygonal. Specifically, the cross-sectional shape of the rotating chamber 111 in the present embodiment is circular.

In one embodiment, the precession structure 10 further includes a damping layer 12 attached to an inner wall of the rotation cavity 111 and made of a flexible material for increasing a friction force between the coupling end and the rotation head 11. Specifically, the damping layer 12 is made of a rubber material in the present embodiment, and the damping layer 12 is attached to the inner wall of the rotating chamber 111 by means of gluing. One end of the threaded sleeve abuts against the damping layer 12, so that relative sliding between the rotary head 11 and the threaded sleeve is avoided in the connection process, and the connection efficiency is further improved.

In one embodiment, the damping layer 12 includes a plurality of damping strips, each damping strip is disposed at intervals along the length direction of the rotator head 11 on the inner wall of the rotator cavity 111, and the socket end abuts at least one damping strip. Each damping strip may be attached to the inner wall of the rotation chamber 111 by gluing.

In one embodiment, the damping layer 12 is a damping sleeve of annular structure, the shape of which is adapted to the shape of the rotation cavity 111. The damping sleeve may be attached to the inner wall of the rotation chamber 111 by gluing.

In one embodiment, the rotating shaft 20 is detachably connected to the rotating head 11, and the rotating head 11 is opened with a rotating hole 112 for the rotating shaft 20 to be inserted. Alternatively, a plurality of swivel heads 11 may be respectively sleeved on a plurality of threaded sleeves, and the threaded sleeves and the reinforcing steel bars may be quickly connected by operating a coupling structure.

In one embodiment, the cross-sectional shape of the rotation hole 112 is non-circular, and the shape of the end of the rotation shaft 20 inserted into the rotation hole 112 is matched with the shape of the rotation hole 112.

In one embodiment, the cross-sectional shape of the rotation hole 112 is a quadrangle. Specifically, the rotation hole 112 is a rectangular hole, and the cross-sectional shape of the rotation shaft 20 is rectangular and fitted into the rotation hole 112.

Referring to fig. 4 to 5, in an embodiment, the hole wall of the rotating hole 112 is provided with at least two limiting grooves 113, the limiting grooves 113 are arranged at intervals around the circumference of the hole wall of the rotating hole 112, the coupling structure further includes a limiting post 23 protruding on the shaft side surface of the rotating shaft 20, and the other end of the limiting post 23 is clamped in one of the limiting grooves 113. Optionally, in the present embodiment, two limiting posts 23 are provided, the two limiting posts 23 are symmetrically connected to the rotating shaft 20, and two limiting grooves 113 are correspondingly formed on the rotating hole 112. The rotation shaft 20 can be facilitated to drive the rotary head 11 by the cooperation of the limiting groove 113 and the limiting post 23.

In one embodiment, the rotating shaft 20 includes a shaft 22 connected to the rotating head 11 and a sleeve 21 connected to the driver, the shaft 22 is inserted into the sleeve 21, and the connection position of the shaft 22 and the sleeve 21 is adjustable. Specifically, the shaft rod 22 is provided with an adjusting groove 221, the shaft sleeve 21 is provided with a limit threaded hole 211, and the screw feeder 100 further comprises a limit bolt. After the shaft 22 and the shaft sleeve 21 are adjusted in place, the limit bolt is screwed in the limit threaded hole 211 and penetrates through the adjusting groove 221 so as to radially position the shaft 22 and the shaft sleeve 21. By adjusting the coupling position between the shaft 22 and the sleeve 21, the length of the rotating shaft 20 can be adjusted, thereby facilitating the coupling between the threaded sleeve and the reinforcing bar in a comfortable posture for the operator. It will be appreciated that a damped sliding movement between the shaft 22 and the sleeve 21 is provided to facilitate axial positioning of the shaft 22 and the sleeve 21.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A spinner for use with a driver and for rotational threading a first structure to a second structure, wherein the first structure has a socket end, the spinner comprising:

a coupling structure including a rotary shaft driven to rotate by the driver;

2. The propeller of claim 1, wherein: the cross section of the rotating cavity is circular, elliptical or polygonal.

3. The propeller of claim 1, wherein: the precession structure further comprises a damping layer which is attached to the inner wall of the rotating cavity, made of a flexible material and used for improving the friction force between the sleeving end and the rotating head.

4. The propeller of claim 3, wherein: the damping layer comprises a plurality of damping strips, each damping strip is arranged at intervals on the inner wall of the rotating cavity along the length direction of the rotating head, and the sleeving end is at least abutted to one damping strip.

5. The propeller of claim 3, wherein: the damping layer is a damping sleeve with an annular structure, and the shape of the damping sleeve is matched with that of the rotating cavity.

6. The propeller of claim 1, wherein: the rotating shaft is detachably connected with the rotating head, and a rotating hole for the rotating shaft to be inserted is formed in the rotating head.

7. The propeller of claim 6, wherein: the cross section of the rotary hole is in a non-circular shape, and the shape of one end, inserted into the rotary hole, of the rotary shaft is matched with the shape of the rotary hole.

8. The propeller of claim 7, wherein: the shaft connecting structure comprises a rotating shaft, a shaft hole is formed in the rotating shaft, the rotating shaft is provided with a rotating hole, the wall of the rotating hole is provided with at least two limiting grooves, the limiting grooves are arranged around the circumference of the wall of the rotating hole at intervals, the shaft connecting structure further comprises a limiting column which is convexly arranged on the side surface of the rotating shaft, and the other end of the limiting column is clamped in one of the limiting grooves.

9. The propeller of claim 1, wherein: the rotating shaft comprises a shaft rod connected with the rotating head and a shaft sleeve connected with the driver, the shaft rod is inserted into the shaft sleeve, and the connecting position of the shaft rod and the shaft sleeve is adjustable.

10. The propeller of claim 9, wherein: the shaft connecting structure comprises a shaft rod, a shaft sleeve and a connecting shaft structure, wherein the shaft rod is provided with an adjusting groove which is axially arranged along the shaft rod, the shaft sleeve is provided with a limiting threaded hole, the connecting shaft structure further comprises a limiting bolt, and after the shaft rod and the shaft sleeve are adjusted in place, the limiting bolt is screwed in the limiting threaded hole and penetrates through the adjusting groove.