CN216731644U

CN216731644U - Blind hole puller

Info

Publication number: CN216731644U
Application number: CN202123177176.9U
Authority: CN
Inventors: 戴更强; 蔡森梁; 姚松保
Original assignee: Zhejiang Nanyuan Pump Industry Co ltd
Current assignee: Zhejiang Nanyuan Pump Industry Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-06-14
Anticipated expiration: 2031-12-16

Abstract

The utility model discloses a blind hole puller, including puller seat, the chucking ring, spacing ring and pull rod, puller seat has seted up through-hole and screw hole by the left right side in proper order in the axial, through-hole and screw hole are linked together, puller seat's the left end outside is equipped with the external conical surface, the external diameter of external conical surface is reduced gradually by the left right side, the chucking ring sets up in puller seat's the external conical surface outside, the inboard of chucking ring be with external conical surface assorted inner conical surface, puller seat's the outside is equipped with the external screw thread on the right side of external conical surface, external screw thread assorted internal thread is seted up to the spacing ring inboard, the spacing ring is located the right side of external conical surface, the external screw thread with screw hole assorted external screw thread is seted up in the outside of pull rod. The utility model discloses a rotatory messenger of spacing ring draws horse seat to outwards remove, and then outwards extrudees the chucking ring for the chucking ring chucking is in the blind hole, outwards pulls out the blind hole work piece through rotatory pull rod at last, realizes the operation of blind hole work piece, simple structure not only, convenient operation, excellent in use effect moreover.

Description

Blind hole puller

Technical Field

The utility model relates to a blind hole draws horse.

Background

The common puller is divided into three major types, one type is that the excircle is hooked, the inner hole through hole can be hooked, the third type is that the screw hole is reserved, the screw can be used for fixing, but to the blind hole workpiece, the three major types of pullers can not be operated.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a blind hole draws horse has effectively solved the problem of pointing out among the background art.

The utility model adopts the technical proposal that:

the utility model provides a blind hole puller, includes puller seat, chucking ring, spacing ring and pull rod, puller seat has seted up through-hole and screw hole in proper order from left to right in the axial, through-hole and screw hole be linked together, the left end outside of puller seat is equipped with the external conical surface, the external diameter of the external conical surface is reduced gradually from left to right, the chucking ring set up in the external conical surface outside of puller seat, the inboard of chucking ring be with external conical surface assorted internal conical surface, the outside of puller seat is equipped with the external screw thread on the right side of external conical surface, the spacing ring inboard set up external screw thread assorted internal thread, the spacing ring be located the right side of external conical surface, the outside of pull rod set up with screw hole assorted external screw thread.

Preferably, the outer side of the clamping ring is provided with anti-slip lines.

Preferably, the left end of the pull rod is conical with a small left end and a large right end, and the right end of the pull rod is a hexagonal thread head.

Preferably, the outer side of the limiting ring is of an outer hexagonal structure.

Preferably, an outer hexagonal structure is arranged on the outer side of the right end of the puller seat.

The utility model discloses a rotatory messenger of spacing ring draws horse seat to outwards remove, and then outwards extrudees the chucking ring for the chucking ring chucking is in the blind hole, outwards pulls out the blind hole work piece through rotatory pull rod at last, realizes the operation of blind hole work piece, simple structure not only, convenient operation, excellent in use effect moreover.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a clamp ring;

fig. 3 is a usage state diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description of specific embodiments thereof, which is illustrated in the accompanying drawings.

Example 1

As shown in fig. 1 and 2, a blind hole puller comprises a puller seat 1, a clamping ring 2, a limiting ring 3 and a pull rod 4, wherein the puller seat 1 is provided with a through hole 5 and a threaded hole 6 in sequence from left to right in the axial direction, the through hole 5 is communicated with the threaded hole 6, the left end outside of the puller seat 1 is provided with an outer conical surface 7, the outer diameter of the outer conical surface 7 is gradually reduced from left to right, the clamping ring 2 is arranged outside the outer conical surface 7 of the puller seat 1, the inner side of the clamping ring 2 is an inner conical surface 8 matched with the outer conical surface 7, the outer side of the puller seat 1 is provided with an external thread on the right side of the outer conical surface 7, the inner side of the limiting ring 3 is provided with an internal thread matched with the external thread, the limiting ring 3 is arranged on the right side of the outer conical surface 7, and the outer thread matched with the threaded hole 6 is provided on the outer side of the pull rod 4.

The outer side of the clamping ring 2 is provided with anti-skid grains 9.

The left end of the pull rod is a conical 10 with a small left end and a big right end, and the right end of the pull rod is a hexagonal thread head 11.

The outer side of the limiting ring 2 is of an outer hexagonal structure.

The outer side of the right end of the puller seat 1 is provided with an outer hexagonal structure.

The utility model discloses a theory of operation as follows:

as shown in fig. 3, the clamping ring 2 is firstly sleeved on the puller seat 1, so that the outer conical surface 7 and the inner conical surface 8 are flatly attached, then the limiting ring 3 is screwed into the external thread of the puller seat 1, then the puller seat 1, the clamping ring 2 and the limiting ring 3 are plugged into the blind hole of the workpiece 12 to be disassembled, the outer hexagonal structure of the puller seat 1 is clamped by a spanner, meanwhile, the limiting ring 3 is rotated, so that the puller seat 1 can not follow the rotation when the limiting ring 3 rotates, and when the limiting ring 3 is rotated, the clamping ring 2 expands outwards to expand the blind hole of the disassembled workpiece 12, finally the pull rod 4 is screwed into the internal thread of the puller seat 1, by rotating the pull rod, the conical shape 10 at the left end of the pull rod 4 is pressed against the center of the shaft of the disassembled workpiece 12, a wrench is used for clamping the outer hexagonal structure of the puller seat 1, the pull rod 4 is rotated forcibly, the disassembled workpiece 12 can move outwards along with the pull rod seat 1 synchronously, and finally the disassembled workpiece 12 is pulled out completely.

Finally, it should be noted that the above-mentioned embodiments are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.

Claims

1. The blind hole puller is characterized by comprising a puller seat (1), a clamping ring (2), a limiting ring (3) and a pull rod (4), wherein the puller seat (1) is sequentially provided with a through hole (5) and a threaded hole (6) from left to right in the axial direction, the through hole (5) is communicated with the threaded hole (6), the outer conical surface (7) is arranged on the outer side of the left end of the puller seat (1), the outer diameter of the outer conical surface (7) is gradually reduced from left to right, the clamping ring (2) is arranged on the outer side of the outer conical surface (7) of the puller seat (1), the inner side of the clamping ring (2) is an inner conical surface (8) matched with the outer conical surface (7), an external thread is arranged on the right side of the outer conical surface (7) on the outer side of the puller seat (1), an internal thread matched with the external thread is arranged on the inner side of the limiting ring (3), the limiting ring (3) is positioned on the right side of the outer conical surface (7), the outer side of the pull rod (4) is provided with an external thread matched with the threaded hole (6).

2. Blind hole puller according to claim 1, characterized in that the outside of said clamping ring (2) is provided with anti-slip threads (9).

3. Blind hole puller according to claim 1, characterized in that the left end of said pulling rod is a cone (10) with a small left and a large right, and the right end is a hexagonal head (11).

4. The blind hole puller according to claim 1, wherein the outer side of the limiting ring is of an outer hexagonal structure.

5. The blind hole puller according to claim 1, wherein an outer hexagonal structure is arranged outside the right end of the puller seat (1).