TWM464544U - Counterboring bolt pusher - Google Patents

Description

Reaming bolt pusher

The present invention relates to a thruster for a reaming bolt, and more particularly to a propeller that can be used to assemble a counterbore bolt to a predetermined hole in a load bearing structure.

Please refer to Figure 1 for the new patent case of the "Expansion Bolt" of the Republic of China No. M431236. The new patent discloses a conventional reaming bolt 9 having a threaded rod body 91. One end of the threaded rod body 91 is provided with a counterbore 911, and the other end of the reaming bolt 9 is provided with a diameter. a sleeve 92 and a threaded tube 93 are formed on the outer side of the threaded rod body 91. The sleeve 92 is formed with a plurality of flaps 921, and the threaded tube 93 is provided with a cap. The head 931; thereby, when the cap 931 of the threaded tube 93 is rotated, the threaded tube 93 can advance the axial displacement of the sleeve 92 along the threaded rod 91, so that the plurality of flaps of the sleeve 92 The 921 is radially expanded to fix the reaming bolt 9 to a predetermined hole of a load-bearing structure 94, and a nut 95 is screwed to the threaded rod body 91 for fixing a load 96 to the load-bearing body. Structure 94.

However, since the threaded pipe 93 of the above-mentioned reaming bolt 9 is directly screwed to the outside of the threaded rod body 91, when the threaded tube 93 is rotated to advance the axial displacement of the sleeve 92, the sleeve is forced again. During the radial expansion of the valve 921 of the 92, the threaded portion of the threaded tube 93 and the threaded rod body 91 are easily broken due to excessive torque, and the threaded tube 93 cannot be smoothly screwed. Cooperating with the outer side of the threaded rod body 91; therefore, when the conventional reaming bolt 9 is actually installed and used, it is easy to cause the reaming bolt 9 to be unable to be firmly coupled to the bearing structure. The predetermined holes in the body 94 are even problematic in that damage cannot be used.

The main purpose of the present invention is to provide a reaming bolt pusher, which can be used to advance the reaming bolt to complete the assembly and fixing operation, so as to effectively prevent the reaming bolt from being damaged during the assembly process.

In order to achieve the foregoing creative purpose, the propeller of the present reaming bolt includes a guiding member and an outer sleeve. The guiding member has a first end and a second end, the first end is provided with a connecting portion for fixing the reaming bolt, and the outer peripheral surface of the guiding member is between the first end and the second end The outer sleeve is provided with a pushing end at one end and an engaging hole at the other end, and the inner hole wall of the engaging hole is provided with a threaded portion, and the threaded portion of the outer sleeve is screwed to the threaded portion The outer thread of the guiding member is used for rotating the outer sleeve to reciprocate along the axial direction of the guiding member.

The connecting portion is a counterbore disposed at the first end, and the inner hole wall of the counterbore is provided with an internal thread for screwing and fixing the reaming bolt.

Wherein the external thread of the guiding member has a spiral direction, and the internal thread of the connecting portion has a spiral direction, and the helical direction of the external thread is opposite to the spiral direction of the internal thread.

The engaging hole of the outer sleeve penetrates axially to the pushing end.

The outer peripheral surface of the outer sleeve is provided with a fastening portion between the pushing end and the engaging hole.

The second end of the guiding member is provided with a fixing portion.

The fixing portion is an inner polygonal hole provided on the end surface of the second end of the guiding member.

The fixing portion is a polygonal convex portion formed on an outer circumferential surface of the second end of the guiding member.

The propeller of the reaming bolt provided by the present invention can control the axial movement of the outer sleeve to advance the expansion element and force the expansion element by using the threaded portion of the outer sleeve and the external thread of the guide member to be screwed together. Radial expansion to complete the assembly and fixing work to effectively prevent the expansion The hole bolt is damaged, and the assembly convenience, service life and combination stability of the reaming bolt are improved.

[this creation]

1‧‧‧Guide

1a‧‧‧ first end

1b‧‧‧ second end

11‧‧‧Connecting Department

111‧‧‧ internal thread

12‧‧‧ external thread

13‧‧‧ Fixed Department

131‧‧‧Inside polygonal hole

132‧‧‧Outer polygonal convex

2‧‧‧Outer casing

21‧‧‧Progress

22‧‧‧Join hole

221‧‧ Thread Department

23‧‧‧Card Department

3‧‧‧Reaming bolts

31‧‧‧ screw

311‧‧‧ Cone

32‧‧‧Expanding elements

321‧‧‧ flaps

33‧‧‧ collar

34‧‧‧ nuts

4‧‧‧Load-bearing structure

41‧‧‧Predetermined holes

5‧‧‧Polygonal wrench

6‧‧‧Loadings

[study]

9‧‧‧Reaming bolts

91‧‧‧Threaded rod body

911‧‧‧ counterbore

912‧‧‧Installation Department

92‧‧‧ casing

921‧‧‧ flaps

93‧‧‧Threaded pipe

931‧‧‧ hat head

94‧‧‧Load-bearing structure

95‧‧‧ Nuts

96‧‧‧Loadings

Figure 1 is a combined cross-sectional view of a conventional reaming bolt.

Fig. 2 is an exploded perspective view of the propeller of the present reaming bolt.

Fig. 3 is a reference diagram (I) of the state of use of the propeller of the present reaming bolt for advancing the reaming bolt for assembly work.

Fig. 4 is a reference diagram (2) of the state of use of the propeller of the present reaming bolt for advancing the reaming bolt for assembly work.

Fig. 5 is a reference diagram (3) of the state of use of the propeller of the present reaming bolt for advancing the reaming bolt for assembly work.

Referring to FIG. 2, the thruster of the preferred embodiment of the present invention includes at least one guiding member 1 and one outer sleeve 2. The guide member 1 can be used for a reaming bolt 3 to be coupled; the outer sleeve 2 is axially movably coupled to the guide member 1 in an axially movable manner.

The guiding member 1 has a first end 1a and a second end 1b. The first end 1a is provided with a connecting portion 11 which can be fixed to the outer peripheral surface of the reaming bolt 3. The structure of the structure, for example, a card slot, a screw hole, etc.; in the preferred embodiment, the connecting portion 11 is a counterbore disposed at the first end 1a, the counterbore is from the first The end 1a extends axially in the direction of the second end 1b, and the inner bore wall of the counterbore is provided with an internal thread 111 having a helical direction.

The outer peripheral surface of the guiding member 1 is provided with an external thread 12 between the first end 1a and the second end 1b. The external thread 12 has a spiral direction, wherein the external thread 12 has a better spiral direction. It is opposite to the spiral direction of the internal thread 111 of the connecting portion 11 so as to more effectively ensure that the guiding member 1 screwed to the reaming bolt 3 does not rotate arbitrarily when the outer sleeve 2 is rotated, for example: When the spiral direction of the external thread 12 is a clockwise spiral direction, the spiral direction of the internal thread 111 is a counterclockwise spiral direction, and conversely, when the spiral direction of the external thread 12 is a counterclockwise spiral direction, the internal thread 111 The spiral direction is a clockwise spiral direction.

The second end 1b of the guiding member 1 is preferably further provided with a fixing portion 13 for fixing various tools, so that the guiding member 1 is not used for assembling the reaming bolt 3 For example, the fixing portion 13 may be an inner polygonal hole (such as an inner hexagonal hole or the like) provided at an end surface of the second end 1b of the guiding member 1, or may be used for the guiding member 1 The outer peripheral surface of the second end 1b is formed with an outer polygonal protrusion (such as an outer hexagonal protrusion or the like), whereby a polygonal wrench (such as a hexagonal wrench or the like) is fixed to the fixing portion for limiting the guiding member. 1 rotation. In this embodiment, the fixing portion 13 is provided with an inner polygonal hole 131 and an outer polygonal convex portion 132 at the same time.

The outer sleeve 2 is provided with a pushing end 21 at one end, and an engaging hole 22 is formed at the opposite end. The engaging hole 22 can be axially penetrated to the pushing end 21, and the inner hole wall of the engaging hole 22 is provided with a threaded portion 221. The threaded portion 221 of the outer sleeve 2 is screwed to the external thread 12 of the guiding member 1 for reciprocating along the axial direction of the guiding member 1 when the outer sleeve 2 is rotated The outer peripheral surface of the outer sleeve 2 is preferably provided with a fastening portion 23 between the pushing end 21 and the engaging hole 22, and the fixing portion 23 is also fixed by various wrenches or electric tools for the user. The outer sleeve 2 can be rotated by the wrench or the electric tool. The detailed structural composition and the use method of the wrench and the power tool described in the present invention can be understood by those skilled in the art, and are not described herein.

The propeller of the present reaming bolt can be applied to various reaming bolts, and the creation is not limited. In the preferred embodiment, the propeller of the present reaming bolt is applied to the reaming bolt 3 as shown in FIG. 2, the reaming bolt 3 includes a screw 31 and an expanding element 32, and the screw 31 is provided at one end. a taper portion 311, the expansion member 32 is sleeved on the screw 31, and the expansion element The piece 32 is provided with a plurality of flaps 321 .

Referring to FIG. 3, in the actual use, the reaming bolt of the present reaming bolt can be placed into a predetermined hole 41 of a load-bearing structure 4, and the screw 31 of the reaming bolt 3 is The taper portion 311 and the expansion member 32 are received in the predetermined hole 41; thereby, the outer sleeve 2 of the propeller of the present reaming bolt can be sleeved outside the screw 31 of the reaming bolt 3, the guide The internal thread 111 of the connecting portion 11 of the member 1 is screwed and fixed to the outer circumferential surface of the screw 31 of the reaming bolt 3, and the pushing end 21 of the outer sleeve 2 can abut the expansion member 32 in advance.

Referring to FIG. 4 , a polygonal wrench 5 can be used to fix the fixing portion 13 of the guiding member 1 for subsequent assembly work of the reaming bolt 3 , and the polygonal wrench 5 can be utilized. The guide member 1 is restricted from rotating arbitrarily; thereby, since the threaded portion 221 of the outer sleeve 2 and the external thread 12 of the guide member 1 are screwed together, when the guide member 1 is restricted from rotating, the position can be further utilized. For example, a wrench or a power tool rotates the outer sleeve 2 through the fixing portion 23 to control the outer sleeve 2 to move axially along the inner direction of the guide member 1 toward the predetermined hole 41 of the load-bearing structure 4, and The advancing end 21 of the outer sleeve 2 is simultaneously pushed against the expansion element 32 to move axially toward the inside of the predetermined hole 41 for forcing the plurality of flaps 321 of the expanding element 32 to cooperate with the taper portion 311 for radial expansion. The reaming bolt 3 can be fixed to the predetermined hole 41 of the load-bearing structure body 4 through the expansion element 32; at this time, as shown in FIG. 5, the propeller of the original reaming bolt can be disassembled from the reaming bolt 3 And a sleeve 33 is disposed outside the screw 31 and filled in the predetermined hole 41 Section, and the screw 31 in a lock nut 34, a load for the material 6 is fixed to the bearing structure 4, to complete the assembly of the reamer bolt 3 of the fixing operation.

According to the structural design of the propeller of the above-mentioned reaming bolt, during the assembly and fixing operation of the reaming bolt 3, the threaded portion of the outer peripheral surface of the screw 31 of the reaming bolt 3 is only used to fit and be fixed thereto. The connecting portion 11 of the guiding member 1 is mainly based on the threaded portion 221 of the outer sleeve 2 and the guiding portion when the outer sleeve 2 is controlled to move axially to force the plurality of flaps 321 of the expanding member 32 to expand radially. The mutual screwing function of the external thread 12 of the member 1 forces the expansion When the plurality of flaps 321 of the element 32 are radially expanded, it is not necessary to rely on the threaded portion of the outer peripheral surface of the screw 31 of the counterbore bolt 3, so that the thread portion of the outer peripheral surface of the screw 31 of the counterbore bolt 3 can be effectively prevented from being damaged. In this case, it is ensured that the reaming bolt 3 can be firmly coupled to the bearing structure 4, thereby achieving the functions of assembling the lifting reaming bolt, the service life, the combination stability and the like.

Although the present invention has been disclosed by the above-described preferred embodiments, it is not intended to limit the present invention, and it is still within the spirit and scope of the present invention to make various changes and modifications to the above embodiments. The technical scope of the protection is created, so the scope of protection of this creation is subject to the definition of the patent application scope attached.

1‧‧‧Guide

1a‧‧‧ first end

1b‧‧‧ second end

11‧‧‧Connecting Department

111‧‧‧ internal thread

12‧‧‧ external thread

13‧‧‧ Fixed Department

131‧‧‧Inside polygonal hole

132‧‧‧Outer polygonal convex

2‧‧‧Outer casing

21‧‧‧Progress

22‧‧‧Join hole

221‧‧ Thread Department

23‧‧‧Card Department

3‧‧‧Reaming bolts

31‧‧‧ screw

311‧‧‧ Cone

32‧‧‧Expanding elements

321‧‧‧ flaps

Claims (8)

A propeller for a reaming bolt, comprising: a guiding member having a first end and a second end, the first end being provided with a connecting portion for fixing the reaming bolt, the outer circumference of the guiding member An external thread is disposed between the first end and the second end; and an outer sleeve is provided at one end with a pushing end for advancing the reaming bolt, and at the other end, an engaging hole is provided, and the inner hole wall of the engaging hole is provided with a a threaded portion, the threaded portion of the outer sleeve is screwed to the external thread of the guiding member for rotating the outer sleeve to reciprocate along the axial direction of the guiding member. The thruster of the reaming bolt of claim 1, wherein the connecting portion is a counterbore disposed at the first end, and the inner hole wall of the counterbore is provided with an internal thread for screwing and fixing the reaming bolt . The propeller of the reaming bolt of claim 2, wherein the external thread of the guiding member has a spiral direction, the internal thread of the connecting portion has a spiral direction, and the helical direction of the external thread and the internal thread The spiral direction is opposite. The propeller of the reaming bolt of claim 1, wherein the engagement hole of the outer sleeve extends axially to the propulsion end. The propeller of the reaming bolt of claim 1, wherein the outer peripheral surface of the outer sleeve is provided with a fastening portion between the pushing end and the engaging hole. The propeller of the reaming bolt of claim 1, wherein the second end of the guiding member is provided with a fixing portion. The thruster of the reaming bolt of claim 6, wherein the fixing portion is an inner polygonal hole provided at a second end surface of the guiding member. The thruster of the reaming bolt of claim 6, wherein the fixing portion is a polygonal convex portion formed on an outer peripheral surface of the second end of the guiding member.