CN212146726U

CN212146726U - Adjustable perforating tool bit for cutting tetrafluoro board of paperboard

Info

Publication number: CN212146726U
Application number: CN202020382759.1U
Authority: CN
Inventors: 刘庆
Original assignee: Guizhou Huadian Tongzi Power Generation Co Ltd
Current assignee: Guizhou Huadian Tongzi Power Generation Co Ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-12-15
Anticipated expiration: 2030-03-24

Abstract

The utility model provides an adjustable trompil tool bit for cutting of cardboard tetrafluoro board. Adjustable trompil tool bit includes mounting base (20), reference column (50), two blades (30) and two retaining member (60), set up two relative settings and follow mounting groove (21) that same direction extends on mounting base (20), two blades (30) at least part one-to-one set up in mounting groove (21), and, two blades (30) can be close to each other or keep away from, retaining member (60) are used for locking blade (30) in mounting groove (21), reference column (50) set up at the center of mounting base (20) and lie in the same one side of mounting base (20) with blade (30). The distance between the two blades of the adjustable tapping head is adjustable, so that the adjustable tapping head can cut out taps of different apertures.

Description

Adjustable perforating tool bit for cutting tetrafluoro board of paperboard

Technical Field

The utility model relates to a sealing connection technical field of power plant particularly, relates to an adjustable trompil tool bit for cutting of cardboard tetrafluoro plate.

Background

In the routine maintenance in-process of power plant, often need make the flange seal pad and trompil (for example, need use the flange seal pad between two ring flanges of power plant's coal breakage union coupling) on it, adopt the belt to dash, the hole digger, have the problem that can't adjust the trompil size, even adopt a large amount of hole diggers, also can't satisfy the trompil needs in arbitrary aperture.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable trompil tool bit for cutting of cardboard tetrafluoro board to solve foretell technical problem.

The embodiment of the utility model is realized like this: the utility model provides an adjustable trompil tool bit for cutting of cardboard tetrafluoro board, includes mounting base, reference column, two blades and two retaining members, set up two relative settings on the mounting base and follow the mounting groove that same direction extends, two the blade at least part one-to-one sets up in the mounting groove, and, two the blade can be close to each other or keep away from, the retaining member be used for with the blade locking in the mounting groove, the reference column sets up mounting base's center and with the blade is located same one side of mounting base.

Optionally, the adjustable tapping tool bit further comprises a backing plate arranged in the mounting groove, the backing plate is located between the blade and the side wall of the mounting groove, and the locking piece is used for tightly abutting the blade against the mounting groove through the backing plate.

Optionally, the retaining member is a locking bolt.

Optionally, a stepped portion is disposed on the mounting base, the stepped portion includes a first plane extending along a horizontal direction and a second plane extending along a longitudinal direction, a locking hole is disposed on the mounting base, the locking hole extends from the second plane to the mounting groove, and the locking member is at least partially inserted into the locking hole.

Optionally, a side of the mounting groove away from the center of the mounting base is configured as an opening side.

Optionally, the mounting groove is configured as a T-shaped groove and extends from one side of the mounting base to the other side, and the locking member penetrates into the blade in the T-shaped groove from the side of the mounting base away from the positioning column.

Optionally, the adjustable tapping tool bit further comprises a connecting rod arranged on one side, away from the blade, of the mounting base, and an insertion hole used for being connected with a driving tool is formed in one end, away from the mounting base, of the connecting rod.

Optionally, two of the blades are arranged in central symmetry with respect to the axis of the mounting base.

Optionally, the mounting base is configured to be circular in profile.

The embodiment of the utility model provides a beneficial effect is: because two blades can move in respective mounting grooves synchronously, and can be close to or keep away from the axis of the mounting base, the circular track formed when the two blades rotate can be increased or reduced, therefore, the distance between the two blades and the axis of the mounting base can be adjusted to meet the requirements of flange sealing gaskets with different aperture sizes, namely, holes with different aperture sizes can be formed only through one set of adjustable hole-opening tool bit, only two blades can be used, more blades do not need to be purchased, the cost is reduced, and meanwhile, the cutting time can be prevented from being prolonged due to the replacement of the blades.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an adjustable hole-forming tool bit for cutting a tetrafluoro board of a paperboard according to a first embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

fig. 3 is a schematic partial structural view of an adjustable tapping tool bit according to a second embodiment of the present invention.

Icon: 10-a connecting rod; 20-mounting a base; 21-mounting grooves; 22-a first plane; 23-a second plane; 30-a blade; 40-a backing plate; 50-a positioning column; 60-locking member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the present invention provides an adjustable hole-drilling tool bit for cutting a tetrafluoro board of a paperboard, which includes a mounting base 20, a positioning column 50, two blades 30 and two locking members 60.

Wherein, the mounting base 20 here can be a plate-shaped structure or a block-shaped structure, two mounting grooves 21 are formed on the mounting base 20, which are oppositely arranged and extend along the same direction, for example, when the mounting base 20 is circular, the two mounting grooves 21 here are symmetrically distributed along the axis of the mounting base 20, at least parts of the two blades 30 are arranged in the mounting grooves 21 in one-to-one correspondence, that is, one blade 30 is arranged in each mounting groove 21, and the distance between each blade 30 and the axis of the mounting base 20 is the same, in this case, when the mounting base 20 rotates, the tracks of the two blades 30 are configured to be circular, so that holes can be formed on the flange sealing gasket, the two blades 30 can approach or depart from each other, in order to make the radius of the tracks of the two blades 30 the same, when one of the blades 30 approaches to the axis direction of the mounting base 20, the other blades 30 are also simultaneously approached to ensure the same distance between each blade 30 and the axis of the mounting base 20, the locking member 60 is used to lock the blades 30 in the mounting groove 21, and the positioning column 50 is arranged at the center of the mounting base 20 and on the same side of the mounting base 20 as the blades 30.

Based on this, because two blades 30 can remove in respective mounting groove 21 synchronously, and can be close to or keep away from the axis of mounting base 20, just so can increase or reduce the circular orbit that two blades 30 formed when rotatory, consequently, can adapt to the needs of the flange sealing gasket of different aperture sizes through the distance between the axis of adjusting two blades 30 and mounting base 20, that is to say, just can set up the hole of different aperture sizes through such adjustable trompil tool bit of a set just, just so can use two blades 30, need not to purchase more blades 30, be favorable to reduce cost, can also avoid simultaneously can avoiding prolonging cutting time because of changing blade 30. In addition, compared with the case of using one blade 30, the flange gasket is cut by using two blades 30 at the same time, which is more efficient, that is, when the two blades 30 are used to rotate the mounting base 20 by 180 degrees, a circular opening is cut, and when the mounting base 20 is cut by using only one blade 30, the mounting base 20 needs to be rotated by 360 degrees, which increases the cutting time and reduces the cutting efficiency.

It should be noted that the adjustable hole cutter may be used to cut cardboard or tetrafluoro board to make a flange gasket.

Referring to fig. 1 and 2, further, the adjustable hole cutter head further includes a backing plate 40 disposed in the mounting groove 21, the backing plate 40 is located between the blade 30 and the side wall of the mounting groove 21, the locking member 60 supports the blade 30 against the mounting groove 21 through the backing plate 40, wherein the length of the backing plate 40 is comparable to the length of the mounting groove 21, when the position of the blade 30 in the mounting groove 21 needs to be adjusted, since the backing plate 40 can always contact with the blade 30, that is, when the blade 30 is close to or far away from the axis of the mounting base 20, the backing plate 40 can always contact with the blade 30, therefore, the setting of the backing plate 40 can still support the blades 30 at different positions in the mounting groove 21 through the locking member 60 without changing the relative position of the locking member 60 and the mounting groove 21, that is, the position of the locking member 60 at different positions in the mounting groove 21 is always unchanged, therefore, on one hand, the convenience of changing the position of the blade 30 can be improved, the size of the position adjusting range of the blade 30 is enlarged compared with a mode of not adopting the backing plate 40, on the other hand, the structure of the adjustable hole-opening cutter head can be simplified, and the hole structure for changing the position of the locking piece 60 is avoided being formed in the mounting base 20.

In an embodiment of the present invention, the locking member 60 can be a locking bolt, and accordingly, a threaded hole matching with the locking bolt is formed on the mounting base 20, so that the locking bolt is screwed in the threaded hole and abuts against the pad 40. It should be noted that the number of the locking members 60 is two, that is, each locking member 60 abuts against one of the pads 40.

Referring to fig. 1 and 2, the mounting base 20 is provided with a stepped portion, the stepped portion includes a first plane 22 extending along a horizontal direction and a second plane 23 extending along a longitudinal direction, the first plane 22 and the second plane 23 are perpendicular to each other, the mounting base 20 is provided with a locking hole, the locking hole extends from the second plane 23 to the mounting groove 21, and the locking member 60 at least partially penetrates through the locking hole, which is the threaded hole. Through setting up the step portion on mounting base 20 for retaining member 60 extends to the distance in the mounting groove 21 relatively shorter from second plane 23, consequently, for complete circular shape mounting base 20, penetrate retaining member 60 from the second surface to the mounting groove 21 in, can shorten the length of retaining member 60, shorten the length in locking hole simultaneously, thereby be favorable to practicing thrift manufacturing cost, reduce the processing degree of difficulty in locking hole, still make the structure of adjustable trompil tool bit compacter.

Referring to fig. 1 and 2, a side of the mounting groove 21 away from the center of the mounting base 20 is configured to be an open side, in other words, the periphery of the mounting groove 21 is not closed, and a side of the mounting groove 21 away from the center of the mounting base 20 is an open structure, such that a portion of the blade 30 can be exposed outside the mounting groove 21, thereby increasing a distance between the two blades 30 to meet a requirement of a larger hole diameter, and in addition, in terms of processing convenience, processing is performed inward from a circumferential side wall of the mounting base 20, which is more convenient.

Wherein the mounting groove 21 may be constructed in any suitable configuration.

In an alternative embodiment of the present invention, the mounting groove 21 may be configured to be closed at the bottom surface.

Referring to fig. 3, in another alternative embodiment, the mounting groove 21 may be configured as a T-shaped groove, and the T-shaped groove is a through-up structure, that is, the mounting groove 21 extends from one side of the mounting base 20 to the other side of the mounting base 20, where the one side refers to the surface of the mounting base 20 or the surface of the mounting base 20 parallel to the first plane 22. Accordingly, a portion of the blade 30 is also configured as a T-shaped structure that mates with the T-shaped slot, whereby when the T-shaped structure of the blade 30 is installed in the T-shaped slot, the locking member 60 can be inserted into the blade 30 within the T-shaped slot from the side of the mounting base 20 away from the positioning post 50, i.e., the locking member 60 is inserted from below the mounting base 20, whereby movement of the blade 30 within the mounting slot 21 can also be achieved, it being understood that in this case, the bottom surface of the blade 30 can be provided with an internally threaded hole that mates with the locking member 60, and that when the blade 30 needs to be positionally adjusted within the mounting slot 21, the locking member 60 will also move synchronously with the blade 30. With respect to the embodiments described above, the adjustable piercing head of the present embodiment may not require the use of backing plate 40.

Referring to fig. 1, adjustable trompil tool bit is still including setting up the connecting rod 10 that keeps away from blade 30 one side at mounting base 20, the one end that mounting base 20 was kept away from to connecting rod 10 is provided with the spliced eye that is used for being connected with driving tool, driving tool here can select pistol electric drill, that is to say, the spliced eye is used for being connected with the output of pistol electric drill, in order to make pistol electric drill can drive connecting rod 10 in step and rotate, and then drive mounting base 20 and rotate, drive adjustable trompil tool bit through outside driving tool and rotate, can improve the efficiency of cutting. The plug bore is adapted to the shape of the output end of the pistol drill, i.e. the cross-sectional shape of the plug bore in the direction perpendicular to the plug bore axis is configured to be non-circular, for example, it may be hexagonal.

Referring to fig. 1 and 2, further, the two blades 30 are distributed in a central symmetry manner with respect to the axis of the mounting base 20, in order to facilitate cutting of the flange gasket, the top ends of the blades 30 are arranged in a spike shape, due to the arrangement of the backing plate 40, the blades 30 are deviated from the diameter direction of the mounting base 20, and in order to enable the mounting base 20 to rotate 180 degrees, the tracks of the two blades 30 are exactly circular, so that the two blades 30 are arranged in a central symmetry manner with respect to the axis of the mounting base 20, and thus a circle can be exactly scribed on the flange gasket to form an opening, that is, the circular opening can be cut by rotating 180 degrees, and the cutting efficiency is improved.

In this embodiment, the shape of the mounting base 20 may be configured to be circular, and the circular mounting base 20 has no edge, so as to prevent the edge from hurting the operator, thereby being beneficial to ensuring the safety of the operator.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an adjustable trompil tool bit for cutting of cardboard tetrafluoro board, its characterized in that, including mounting base (20), reference column (50), two blades (30) and two retaining member (60), set up two relative settings and along mounting groove (21) that same direction extends on mounting base (20), two blade (30) at least part one-to-one sets up in mounting groove (21), and, two blade (30) can be close to each other or keep away from, retaining member (60) are used for with blade (30) lock in mounting groove (21), reference column (50) set up the center of mounting base (20) and with blade (30) are located same one side of mounting base (20).

2. The adjustable tapping blade for cardboard tetrafluoro-plate cutting as claimed in claim 1 further comprising a backing plate (40) disposed in the mounting groove (21), the backing plate (40) is located between the blade (30) and the side wall of the mounting groove (21), the locking member (60) abuts the blade (30) against the mounting groove (21) through the backing plate (40).

3. The adjustable tapping blade for tetrafluoro-cutting of cardboard as claimed in claim 2 wherein said locking member (60) is a locking bolt.

4. The adjustable hole cutting head for cutting the tetrafluoro cardboard as claimed in claim 2 or 3, wherein a stepped portion is provided on the mounting base (20), the stepped portion comprises a first plane (22) extending along a horizontal direction and a second plane (23) extending along a longitudinal direction, a locking hole is opened on the mounting base (20), the locking hole extends from the second plane (23) to the mounting groove (21), and the locking member (60) is at least partially penetrated through the locking hole.

5. The adjustable hole cutter for cardboard tetrafluoro plate cutting as claimed in claim 2, characterized in that one side of the mounting groove (21) away from the center of the mounting base (20) is configured as an open side.

6. The adjustable hole cutter for cardboard tetrafluoro plate cutting as claimed in claim 1, characterized in that the mounting groove (21) is configured as a T-shaped groove and the mounting groove (21) extends from one side of the mounting base (20) to the other side, and the locking piece (60) penetrates into the blade (30) in the T-shaped groove from the side of the mounting base (20) away from the positioning column (50).

7. The adjustable perforating tool bit for cutting the tetrafluoro cardboard as claimed in claim 1, further comprising a connecting rod (10) arranged on one side of the mounting base (20) far away from the blade (30), wherein one end of the connecting rod (10) far away from the mounting base (20) is provided with a plug hole for connecting with a driving tool.

8. Adjustable tapping head for the cutting of tetrafluoro cardboard as claimed in claim 1, characterized in that said two blades (30) are distributed with central symmetry with respect to the axis of said mounting base (20).

9. Adjustable tapping head for cutting tetrafluoro-cardboard as claimed in claim 1 wherein said mounting base (20) is configured in a circular outline.