CN221494336U - Hollow drill with holes - Google Patents

Abstract

The application provides a hollow drill with holes, and belongs to the technical field of hollow drills. The open-pore hollow drill comprises a hollow drill. The hollow drill comprises a drill bit, a drill rod, a connecting rod, a limiting rod and a limiting sleeve, wherein the bottom end of the connecting rod is fixedly connected to the top end of the drill bit. When needing to change the drill bit, the workman can rotate the limit sleeve, withdraw from the drilling rod inside with the limit sleeve for the limit sleeve is not supporting tightly the gag lever post, then the workman alright take out the inside of drilling rod with the gag lever post, and then take out the inside of connecting rod with the gag lever post, make the gag lever post not spacing the connecting rod, then alright pull down the drill bit, and then can take out the drilling rod inside with the connecting rod, and then make drill bit and drilling rod separation, then take off alright with the limit sleeve from the connecting rod, and then alright change the drill bit, and then alright save drilling rod structure, can save a large amount of resources.

Description

Hollow drill with holes

Technical Field

The application relates to the field of core drills, in particular to an open-pore core drill.

Background

The hollow drill is also called core drill, steel plate drill and hole drill, the standard name is multi-edge steel plate drill, the drill bit is used for cutting only the outer diameter annular part of the hole, and the middle part is not cut, so that the drilling efficiency is greatly improved, the hollow drill needs to be replaced regularly due to abrasion, overheat damage and other reasons in the use process of the drill, the hollow drill can be divided into a drill rod and a drill bit, the drill bit part is needed to be replaced, the drill rod and the drill bit of the traditional hollow drill are integrally formed, the drill rod and the drill bit can be replaced together during replacement, waste of the drill rod can be caused, and particularly, a large amount of resource waste can be caused for the hollow drill with a longer drill rod part.

Disclosure of utility model

In order to make up for the defects, the application provides a hollow drill with holes, which aims to solve the problem that a great amount of resources are wasted due to the fact that drill rods are wasted.

The embodiment of the application provides an open-pore hollow drill, which comprises a hollow drill.

The hollow drill comprises a drill bit, a drill rod, a connecting rod, a limiting rod and a limiting sleeve, wherein the bottom end of the connecting rod is fixedly connected to the top end of the drill bit, the connecting rod is slidably inserted into the drill rod, the limiting rod slidably penetrates through the rod body of the connecting rod, the limiting sleeve is in threaded insertion into the drill rod, and the limiting sleeve is tightly abutted to the limiting rod.

In a specific embodiment, a limiting round hole is formed in the bottom end of the drill rod, and the rod body of the connecting rod is inserted into the limiting round hole in a sliding mode.

In a specific embodiment, the top wall of the limiting round hole is provided with a limiting rectangular hole, the top end of the connecting rod is provided with a limiting block, and the limiting block is slidably inserted into the limiting rectangular hole.

In a specific embodiment, a limit groove is formed in the bottom end of the drill rod, the limit groove penetrates through the limit round hole, and the limit rod is inserted into the limit groove in a sliding mode.

In a specific embodiment, a pull plate is disposed at an end of the limit rod away from the limit groove.

In a specific embodiment, the limit sleeve is slidably sleeved outside the connecting rod, and the limit sleeve is in threaded connection with the inside of the limit round hole.

In a specific embodiment, the outer wall of the limit sleeve is provided with an external thread groove, the inner wall of the limit round hole is provided with an internal thread groove corresponding to the external thread groove, and the external thread groove is in threaded connection with the internal thread groove.

In a specific embodiment, the bottom end of the limit sleeve is fixedly sleeved with a nut.

The beneficial effects of the utility model are as follows: according to the perforated hollow drill obtained through the design, when a drill bit is required to be replaced, a worker can rotate the limiting sleeve, the limiting sleeve is withdrawn from the inside of the drill rod, the limiting sleeve is not abutted against the limiting rod, then the worker can withdraw the limiting rod from the inside of the drill rod, and then the limiting rod is withdrawn from the inside of the connecting rod, so that the limiting rod is not used for limiting the connecting rod, then the drill bit can be pulled downwards, and then the connecting rod can be withdrawn from the inside of the drill rod, and then the drill bit is separated from the drill rod, and then the limiting sleeve is taken down from the connecting rod, so that the drill bit can be replaced, and then the structure of the drill rod can be saved, and a large amount of resources can be saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an open-hole core drill according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of a drill rod according to an embodiment of the present application;

FIG. 3 is a schematic view of a limiting sleeve and a nut portion according to an embodiment of the present application;

Fig. 4 is a schematic structural diagram of a connecting rod according to an embodiment of the present application;

Fig. 5 is a schematic view of a limiting circular hole structure according to an embodiment of the present application.

In the figure: 100-a hollow drill; 110-a drill bit; 120-drill rod; 121-limiting round holes; 122-limiting rectangular holes; 123-limit grooves; 130-connecting rods; 131-limiting blocks; 140-limiting rods; 141-pulling plates; 150-limiting sleeve; 152-nut.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, based on the embodiments of the application, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the application.

Referring to fig. 1, the present application provides an open hole core drill, including a core drill 100.

Referring to fig. 1-5, the core drill 100 includes a drill bit 110, a drill rod 120, a connecting rod 130, a limiting rod 140 and a limiting sleeve 150, wherein the bottom end of the connecting rod 130 is fixedly connected to the top end of the drill bit 110, the connecting rod 130 is slidably inserted into the drill rod 120, a limiting round hole 121 is formed in the bottom end of the drill rod 120, the rod body of the connecting rod 130 is slidably inserted into the limiting round hole 121, a limiting rectangular hole 122 is formed in the top wall of the limiting round hole 121, a limiting block 131 is arranged at the top end of the connecting rod 130, and the limiting block 131 is slidably inserted into the limiting rectangular hole 122.

In the application, the limit rod 140 is slidably inserted into the drill rod 120, the bottom end of the drill rod 120 is provided with the limit groove 123, the limit groove 123 penetrates through the limit round hole 121, the limit rod 140 is slidably inserted into the limit groove 123, one end of the limit rod 140, which is far away from the limit groove 123, is provided with the pull plate 141, the pull plate 141 facilitates a worker to pull the limit rod 140 out of the limit groove 123, and the limit rod 140 slidably penetrates through the rod body of the connecting rod 130.

In this embodiment, the limit sleeve 150 is screwed in the drill rod 120, the limit sleeve 150 is slidably sleeved on the outside of the connecting rod 130, the limit sleeve 150 is rotatably sleeved on the outside of the connecting rod 130, the limit sleeve 150 can rotate and slide outside the connecting rod 130, the limit sleeve 150 is screwed in the limit round hole 121, the outer wall of the limit sleeve 150 is provided with an external thread groove, the inner wall of the limit round hole 121 is provided with an internal thread groove corresponding to the external thread groove, the external thread groove is in threaded connection with the internal thread groove, the bottom end of the limit sleeve 150 is fixedly sleeved with the nut 152, and the nut 152 facilitates a worker to rotate the limit sleeve 150 by using a tool, and the limit sleeve 150 abuts against the limit rod 140.

Specifically, the working principle of the hollow drill with the holes is as follows: when the drill bit 110 needs to be replaced, a worker can use tools such as a wrench to rotate the nut 152, further rotate the limiting sleeve 150, further withdraw the limiting sleeve 150 from the inside of the limiting round hole 121, so that the limiting sleeve 150 is not abutted against the limiting rod 140, then the worker can withdraw the limiting rod 140 from the inside of the limiting groove 123, further withdraw the limiting rod 140 from the inside of the connecting rod 130, so that the limiting rod 140 is not limiting the connecting rod 130, then the drill bit 110 can be pulled downwards, further the connecting rod 130 can be withdrawn from the inside of the limiting round hole 121, the limiting block 131 can be withdrawn from the inside of the drill rod 120, further the drill bit 110 is separated from the drill rod 120, then the limiting sleeve 150 is taken down from the connecting rod 130, further the drill bit 110 can be replaced, further the structure of the drill rod 120 can be saved, and a large amount of resources can be saved.

The above embodiments of the present application are only examples, and are not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (8)

1. An apertured core drill, comprising

The hollow drill (100), hollow drill (100) include drill bit (110), drilling rod (120), connecting rod (130), gag lever post (140) and stop collar (150), the bottom fixed connection of connecting rod (130) in the top of drill bit (110), connecting rod (130) slip peg graft in inside drilling rod (120), gag lever post (140) slip run through in the body of rod of connecting rod (130), stop collar (150) screw thread peg graft in the inside of drilling rod (120), stop collar (150) with gag lever post (140) offset tightly.

2. The open-pore core drill according to claim 1, wherein a limiting round hole (121) is formed in the bottom end of the drill rod (120), and the rod body of the connecting rod (130) is slidably inserted into the limiting round hole (121).

3. The open-pore hollow drill according to claim 2, wherein a limiting rectangular hole (122) is formed in the top wall of the limiting round hole (121), a limiting block (131) is arranged at the top end of the connecting rod (130), and the limiting block (131) is slidably inserted into the limiting rectangular hole (122).

4. The open-pore core drill of claim 2, wherein a limit groove (123) is formed in the bottom end of the drill rod (120), the limit groove (123) penetrates through the limit round hole (121), and the limit rod (140) is slidably inserted into the limit groove (123).

5. The open-hole core drill according to claim 4, characterized in that the end of the limit rod (140) remote from the limit groove (123) is provided with a pull plate (141).

6. The open-hole core drill according to claim 2, wherein the limit sleeve (150) is slidably sleeved outside the connecting rod (130), and the limit sleeve (150) is screwed into the limit round hole (121).

7. The perforated core drill according to claim 6, characterized in that the outer wall of the limit sleeve (150) is provided with an external thread groove, the inner wall of the limit round hole (121) is provided with an internal thread groove corresponding to the external thread groove, and the external thread groove is in threaded connection with the internal thread groove.

8. The open-hole core drill according to claim 7, characterized in that the bottom end of the limit sleeve (150) is fixedly sleeved with a nut (152).