CN220943302U

CN220943302U - Hole digger

Info

Publication number: CN220943302U
Application number: CN202322625625.4U
Authority: CN
Inventors: 林军
Original assignee: Yueqing Jiali Tools Co ltd
Current assignee: Yueqing Jiali Tools Co ltd
Priority date: 2023-09-26
Filing date: 2023-09-26
Publication date: 2024-05-14
Anticipated expiration: 2033-09-26

Abstract

The utility model relates to the technical field of hole openers, in particular to a hole opener, which comprises a connecting rod connected with a driving source, wherein the end part of the connecting rod is connected with a drill bit, the outer ring of the connecting rod is sleeved with a sleeve body, the end part of the connecting rod is provided with a slot, the end part of the drill bit is inserted into the slot, the sleeve body is provided with a round hole, the round hole is sleeved at the joint of the drill bit and the slot, so that the connecting rod is opened and clamped with the drill bit, the round hole is tightly sleeved at the opened part of the connecting rod, the sleeve body is sequentially formed to clamp the connecting rod, and the slot clamps the drill bit; in summary, the hole digger of the utility model does not need to use devices such as a fixing component and the like, and the clamping of the drill bit, the connecting rod and the sleeve body is completed by completely utilizing the interaction of the structure of the hole digger, so that the tightness of the device is improved, the quick installation is convenient, the working efficiency of staff is improved, the time is greatly saved, the concentricity is improved, and the use efficiency is greatly improved.

Description

Hole digger

Technical Field

The utility model relates to the technical field of hole openers, in particular to a hole openers.

Background

The hole puncher is called a hole saw or a hole saw, and refers to a sawing special circular saw for processing circular holes in modern industry or engineering, and the hole puncher is simple and flexible to operate, convenient to carry, safe and wide in application; the metal hole digger is installed on a common electric drill, so that the metal hole digger can conveniently cut on any curved surface such as the plane, the sphere and the like of various plates such as copper, iron, stainless steel, organic glass and the like.

In the prior patent 201921875548.5, a metal tapping device is disclosed, which comprises a working part bearing body with a cutting head, a connecting rod clamping part used for being connected with a driving piece and a drill bit coaxially and fixedly connected with the connecting rod clamping part, wherein an inner taper hole is formed in the working part bearing body, a cone part is coaxially and fixedly connected with the connecting rod clamping part, the cone part is in interference fit and inserted in the inner taper hole, and a fixing assembly used for limiting the connecting rod clamping part to circumferentially rotate on the working part bearing body is arranged between the working part bearing body and the connecting rod clamping part; the connecting device has the effects of being convenient for quick clamping, dismounting and replacing and good connecting stability.

In the structure, the positioning bolts are respectively matched with the positioning holes, the other ends of the positioning bolts are clamped in the positioning grooves in an interference fit manner, the cone portions are inserted in the inner cone holes in an interference fit manner, the purpose of fixed connection between the working portion bearing body and the connecting rod clamping portion is achieved, but the installation is difficult to achieve, the installation is not convenient enough, the operation rate of workers is reduced, and the time is wasted.

Disclosure of utility model

In view of the above, the present utility model is directed to a hole digger to solve the problems of difficulty in quick installation, inconvenience, reduced operation rate of staff and time waste when installing the hole digger.

Based on the above object, the utility model provides a hole digger, which comprises a connecting rod connected with a driving source, wherein the end part of the connecting rod is connected with a drill bit, the outer ring of the connecting rod is sleeved with a sleeve body, the end part of the connecting rod is provided with a slot, the end part of the drill bit is inserted into the slot, the sleeve body is provided with a round hole, the round hole is sleeved at the joint of the drill bit and the slot, so that the connecting rod is opened and clamped with the drill bit, the round hole is tightly sleeved at the opened part of the connecting rod, and the sleeve body is sequentially formed to clamp the connecting rod, and the slot clamps the drill bit.

Preferably, the diameter of the end part of the connecting rod at the grooving position is gradually reduced along the extending direction of the drill bit, and the end part of the connecting rod is abutted in the round hole when being inserted into the round hole.

Preferably, the connecting rod is provided with a disassembly hole, and the disassembly hole is used for observing the installation position of the drill bit.

Preferably, the diameter of the end portion of the drill at the slot is gradually increased along the extending direction of the drill, and the drill is inserted into the slot to open the slot.

Preferably, the sleeve body is provided with a drilling tool with a cutting function, and the end part of the sleeve body is provided with teeth.

Preferably, the sleeve body is provided with ventilation holes, and gas is led into the sleeve body through the ventilation holes.

The utility model has the beneficial effects that: during installation, the connecting rod is installed and connected to the output end of the driving source, the drill bit is clamped in the slot, so that the drill bit and the connecting rod are integrated, the slot is not opened at the moment, the sleeve body is sleeved on the outer ring of the end part of the connecting rod by using the round hole, the drill bit is extruded into the deep part of the slot during clamping, the periphery of the slot can be opened due to the action of the drill bit at the moment, the drill bit is firmly clamped in the slot, and meanwhile, the end part of the connecting rod is firmly clamped in the round hole due to the opening of the slot, so that the drill bit, the connecting rod and the sleeve body are tightly clamped together, and installation is completed; in summary, when the hole digger is installed, devices such as a fixing component are not needed, the clamping of the drill bit, the connecting rod and the sleeve body is completed by completely utilizing the interaction of the structure of the hole digger, the tightness of the device is improved, the quick installation is convenient, the working efficiency of workers is improved, the time is greatly saved, the concentricity is improved, and the use efficiency is greatly improved.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only of the utility model and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a structural view of the extension rod of the present utility model;

FIG. 3 is a structural entity view of the sleeve of the present utility model;

Fig. 4 is a structural entity diagram of the drill bit of the present utility model.

Marked in the figure as: 1. a connecting rod; 101. disassembling the hole; 2. a drill bit; 3. a sleeve body; 301. teeth; 302. ventilation holes; 4. slotting; 5. and a round hole.

Detailed Description

The present utility model will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present utility model more apparent.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a hole digger comprises a connecting rod 1 connected with a driving source, the driving source can drive the connecting rod 1 to rotate, the end part of the connecting rod 1 is connected with a drill bit 2, the outer ring of the connecting rod 1 is sleeved with a sleeve body 3, the end part of the connecting rod 1 is provided with grooves 4, the number of the grooves 4 is one to eight, the stability is improved, the end part of the drill bit 2 is inserted into the grooves 4, the sleeve body 3 is provided with round holes 5, the round holes 5 are sleeved at the joint of the drill bit 2 and the grooves 4 at the end part of the connecting rod 1, so that the connecting rod 1 is opened and clamped with the drill bit 2, the round holes 5 are tightly sleeved with the opened part of the connecting rod 1, the sleeve body 3 is sequentially formed to clamp the connecting rod 1, and the grooves 4 clamp the drill bit 2.

Working principle: during installation, the connecting rod 1 is installed and connected to the output end of a driving source, the drill bit 2 is clamped in by the groove 4, so that the drill bit 2 and the connecting rod 1 are integrated, the groove 4 is not opened at the moment, meanwhile, the sleeve body 3 is sleeved on the outer ring of the end part of the connecting rod 1 by the round hole 5, during clamping, the drill bit 2 is extruded into the deep part of the groove 4, the periphery of the groove 4 can be opened due to the effect of the drill bit 2, so that the drill bit 2 is firmly clamped in the groove 4, and meanwhile, the end part of the connecting rod 1 is firmly clamped in the round hole 5 due to the opening of the groove 4, so that the drill bit 2, the connecting rod 1 and the sleeve body 3 are tightly clamped together, and installation is completed; in summary, when the hole digger is installed, devices such as a fixing component are not needed, the mutual effect of the structure of the hole digger is completely utilized to complete the clamping connection of the drill bit 2, the connecting rod 1 and the sleeve body 3, the tightness of the device is improved, the quick installation is convenient, the working efficiency of staff is improved, the time is greatly saved, the concentricity is improved, and the use efficiency is greatly improved.

As shown in fig. 1, 2 and 3, in the hole digger, the diameter of the end of the connecting rod 1 at the position of the slot 4 gradually decreases along the extending direction of the drill bit 2, and the end of the connecting rod 1 is abutted in the round hole 5 when being inserted into the round hole 5.

Working principle: when the drill bit is installed, the diameter of the end part of the connecting rod 1 is gradually reduced along the extending direction of the drill bit 2, so that the end part of the connecting rod 1 can be inserted into the round hole 5, the depth of the connecting rod 1 inserted into the round hole 5 can be adjusted, the clamping capacity and the adaptability of the connecting rod 1 are improved, and the flexibility of the device is improved.

As shown in fig. 1 and 2, in an tapper, a connection rod 1 is provided with a dismounting hole 101, and the dismounting hole 101 is used for observing the mounting position of a drill bit 2.

Working principle: when the drill bit 2 is inserted into the end part of the extension rod 1, the insertion depth of the drill bit 2 can be observed through the dismounting hole 101, so that the protection of the extension rod 1 is facilitated, the drill bit 2 is prevented from being excessively penetrated into the slot 4 by a worker blindly, the drill bit 2 is conveniently and deeply mastered, the efficiency of the worker is improved, and idle work is avoided; when dismantling, utilize dismantling hole 101 cooperation instrument such as wedge to release drill bit 2 from fluting 4, the staff of being convenient for dismantle drill bit 2, do benefit to the purpose that reaches quick dismantlement, save time.

As shown in fig. 1 and 4, in an hole digger, the diameter of the end of the drill 2 at the slot 4 is gradually increased along the extending direction of the drill 2, and the drill 2 is inserted into the slot 4 to open the slot 4.

Working principle: when the drill bit 2 is installed, the drill bit 2 is inserted into the slot 4, the end part of the drill bit 2 is gradually increased along the extending direction of the drill bit 2, so that the drill bit 2 is conveniently inserted into the slot 4 of the connecting rod 1, the clamping of the drill bit 2 by the slot 4 is facilitated, the installation and the disassembly of the drill bit 2 are convenient, the selection of the drill bit 2 is facilitated, and the stability of the drill bit 2 is improved.

As shown in fig. 1 and 3, a hole digger is provided, a sleeve 3 is provided as a drilling tool having a cutting function, the drilling tool is a prior art, and teeth 301 are provided at the end of the sleeve 3.

Working principle: when setting up the cover body 3, can set up the cover body 3 as the drilling tool that has the cutting action, evenly set up tooth 301 around the tip of the cover body 3, when punching, tooth 301 can rub with objects around and punch, and the setting up of tooth 301 improves the sharpness of device, improves the cutting ability to the material, and the device of being convenient for punches.

As shown in fig. 1 and 3, in a hole digger, a ventilation hole 302 is formed in a cover 3, and gas is introduced into the cover 3 through the ventilation hole 302.

Working principle: the setting of bleeder vent 302 is convenient for gas entering cover body 3 in, when punching, and gaseous circulation at any time does benefit to the device and punches smoothly, improves the heat dissipation ability simultaneously, avoids the high temperature when punching, improves the guard action to cover body 3, and discharges the piece that produces when will boring, improves the chip removal ability of device.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the utility model (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity.

The present utility model is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a hole digger, its characterized in that includes and connects pole (1) of being connected with the actuating source, the end connection who connects pole (1) has drill bit (2), the outer lane cover that connects pole (1) is equipped with cover body (3), fluting (4) have been seted up to the tip that connects pole (1), the tip of drill bit (2) is inserted and is established in fluting (4), round hole (5) have been seted up on cover body (3), round hole (5) cover are in the tip that connects pole (1) is located drill bit (2) with fluting (4) junction, so that connect pole (1) open the block drill bit (2) and make round hole (5) close-packed establish the department that opens of connecting pole (1) forms in proper order cover body (3) block and connect pole (1), fluting (4) block drill bit (2).

2. A hole digger according to claim 1, characterized in that the diameter of the end of the extension rod (1) at the position of the slot (4) gradually decreases along the extension direction of the drill bit (2), and the end of the extension rod (1) abuts in the round hole (5) when inserted into the round hole (5).

3. A tapping device according to claim 1, characterized in that the extension bar (1) is provided with a removal hole (101), the removal hole (101) being used for observing the mounting position of the drill bit (2).

4. A hole opener according to claim 1, characterized in that the diameter of the end of the drill bit (2) at the slot (4) increases gradually in the direction of extension of the drill bit (2), the drill bit (2) opening the slot (4) when inserted into the slot (4).

5. A hole opener according to claim 1, characterized in that the sleeve (3) is provided as a drilling tool with a cutting action, the end of the sleeve (3) being provided with teeth (301).

6. The hole digger according to claim 5, characterized in that the sleeve (3) is provided with ventilation holes (302), and gas is led into the sleeve (3) through the ventilation holes (302).