CN212551889U

CN212551889U - Diamond hole digger

Info

Publication number: CN212551889U
Application number: CN202020901460.2U
Authority: CN
Inventors: 周庆河; 林加会; 陈秀松; 周庆杨
Original assignee: Zhejiang Enguang Diamond Tools Co ltd
Current assignee: Zhejiang Enguang Diamond Tools Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-02-19
Anticipated expiration: 2030-05-25

Abstract

The utility model relates to the technical field of tappers, and discloses a diamond tapper, which comprises a connecting shaft and a cylindrical drill bit, wherein an inner cavity is arranged in the cylindrical drill bit, one end of the inner cavity, which is far away from the connecting shaft, is provided with an opening, one end of the inner cavity, which is close to the connecting shaft, is connected with a water storage sponge, the water storage sponge is clamped in the inner cavity through self elasticity, and the side wall of the cylindrical drill bit is provided with a water inlet hole communicated with the water storage sponge; one side that the connecting axle was kept away from to cylindric drill bit can be dismantled through the multiunit installed part and be connected with the cutting ring, one side that the cylindric drill bit was kept away from to the cutting ring has a plurality of skewed teeth along circumferencial direction integrated into one piece. The utility model discloses need not external cooling tube when punching, have the position of the cooling tube of difficult connection and punch the good advantage of radiating effect.

Description

Diamond hole digger

Technical Field

The utility model belongs to the technical field of the technique of hole digger and specifically relates to a diamond hole digger is related to.

Background

The hole digger is mounted on a common electric drill, can conveniently and randomly cut round holes, square holes, triangular holes, straight lines, curves and the like on any curved surfaces such as planes, spherical surfaces and the like of various plates such as copper, iron, stainless steel, organic glass and the like, and has the advantages of flexibility, convenience, safety and wide application. The tapper may be classified into a bimetal tapper, a hard alloy tapper, a diamond tapper, etc. according to the material.

In the prior art, chinese patent No. CN205614853U discloses a drill bit for hole digger, which comprises a cylindrical drill bit and a driving shaft connected with the cylindrical drill bit, wherein the end of the cylindrical drill bit is provided with a plurality of raised lines distributed at intervals, and the raised lines are coated with carborundum; and a through groove for introducing cooling liquid is formed in the side wall of the cylindrical drill bit.

The above prior art solutions have the following drawbacks: when the drill bit of the hole digger is filled with cooling liquid in work, a cooling pipe communicated with the through groove needs to be externally connected to the cylindrical drill bit. However, when the hole digger is used for drilling the position of an object with higher altitude and the like which is not easy to connect with the cooling pipe, the cooling pipe is not easy to be connected with the drill bit of the hole digger, and the heat dissipation effect during drilling is poor and needs to be improved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a diamond hole digger need not external cooling tube when punching, has the advantage that the radiating effect is good when the position of difficult connection cooling tube punches.

The above object of the present invention can be achieved by the following technical solutions: a diamond hole digger comprises a connecting shaft and a cylindrical drill bit, wherein an inner cavity is arranged in the cylindrical drill bit, an opening is formed in one end, far away from the connecting shaft, of the inner cavity, a water storage sponge is connected to one end, close to the connecting shaft, of the inner cavity, the water storage sponge is clamped in the inner cavity through self elasticity, and a water inlet hole communicated with the water storage sponge is formed in the side wall of the cylindrical drill bit; one side that the connecting axle was kept away from to cylindric drill bit can be dismantled through the multiunit installed part and be connected with the cutting ring, one side that the cylindric drill bit was kept away from to the cutting ring has a plurality of skewed teeth along circumferencial direction integrated into one piece.

Through adopting above-mentioned technical scheme, when the position of connecting the cooling tube inconveniently punches, people can install the retaining sponge that absorbs there is the cooling water in the inner chamber of cylindric drill bit in advance, along with the hole digger with treat the continuous contact of trompil object during the trompil, treat that the trompil object can constantly extrude the retaining sponge for the purpose of cooling water outflow in the retaining sponge in order to reach cooling, the radiating effect is good. The inlet opening can be used to carry out the moisturizing to the retaining sponge, and people need not to take out the retaining sponge during the moisturizing operation and block into cylindric drill bit again after, and convenient operation and water storage are bigger. The skewed tooth can earlier with treat the trompil object contact when punching, and the trompil is efficient, because cutting ring can dismantle with the cylindric drill bit, when skewed tooth wearing and tearing are big and influence its sharpness, people can have the cutting ring of new skewed tooth with changing behind cutting ring and the cylindric drill bit split, the long service life of hole digger.

The utility model discloses further set up to: and the water storage sponge is provided with a flow guide hole communicated with the water inlet hole.

Through adopting above-mentioned technical scheme, the cooling water that flows into the retaining sponge from the inlet opening can be followed the diffusion of water conservancy diversion hole, has further improved the retaining efficiency of retaining sponge.

The utility model discloses further set up to: the water inlet hole is arranged on the bottom of the water tank, and the water inlet hole is arranged on the bottom of the water tank.

By adopting the technical scheme, the guide hole is inclined, so that the guide effect is achieved, cooling water can flow to one side far away from the water inlet hole after entering the guide hole, the flowing speed is high, and the water absorption efficiency of the water storage sponge is high; on the other hand, the contact area of the cooling water and the water storage sponge is increased, and the water storage effect is good.

The utility model discloses further set up to: the inner wall of the cylindrical drill bit is provided with a limiting groove, and the water storage sponge is clamped in the limiting groove.

Through adopting above-mentioned technical scheme, its gravity is big when holding in the retaining sponge has the cooling water, and the spacing groove plays the effect that the restriction retaining sponge deviates from the inner chamber, has improved the stability of retaining sponge.

The utility model discloses further set up to: one side of the water storage sponge close to the cutting ring is fixed with a waterproof water-proof cloth, and the cross section of the water-proof cloth is circular and the diameter of the water-proof cloth is smaller than the inner diameter of the cylindrical drill bit.

By adopting the technical scheme, when water is added to the water storage sponge through the water inlet hole, the water insulation cloth can prevent saturated cooling water from dripping from the bottom of the water storage sponge; when punching, the retaining sponge receives the extrusion back, and water proof cloth can block from the rivers that the retaining sponge was extruded to waiting to punch the object under it on, helps the cooling water to flow to the helical tooth and wait to punch the contact site of object from the clearance of water proof cloth and cylindric drill bit, and the cooling effect is good.

The utility model discloses further set up to: the installed part including fix the cutting ring be close to the installation piece of cylindric drill bit one side and with installation piece threaded connection's construction bolt, the terminal surface that the cylindric drill bit is close to the cutting ring is equipped with the mounting groove that supplies the installation piece to stretch into, be equipped with the through-hole that supplies construction bolt to penetrate on the lateral wall of mounting groove.

Through adopting above-mentioned technical scheme, cylindric drill bit passes through construction bolt with the cutting ring to be connected, easy dismounting and joint strength between them is high, and the cutting ring is difficult for separating with the cylindric drill bit when punching.

The utility model discloses further set up to: be equipped with the groove of stepping down with the mounting groove intercommunication on the outer wall of cylindric drill bit, the head of construction bolt is arranged in the groove of stepping down and does not surpass the cylindric drill bit.

Through adopting above-mentioned technical scheme, mounting bolt's head is accomodate in the groove of stepping down and can not expose, and mounting bolt's head can not be worn and torn and reduce the joint strength of cylindric drill bit and cutting ring by waiting to punch the object when punching.

The utility model discloses further set up to: one side of the connecting shaft, which is close to the cylindrical drill bit, is connected with a positioning drill rod of which the lower end exceeds the helical teeth.

Through adopting above-mentioned technical scheme, the location drilling rod earlier with wait to punch the object contact and can drill out the hole in advance when punching, cut the object by the skewed tooth again, the location drilling rod plays the effect of location, realize when helping the hole digger to drill that accurate location, the accuracy of cutting are high.

The utility model discloses further set up to: the top wall of the inner cavity is provided with a positioning groove extending to the connecting shaft, the top end of the positioning drill rod is positioned in the positioning groove, the side wall of the positioning groove is provided with a fastening hole, a fastening bolt penetrates through the fastening hole, and the top end of the side wall of the positioning drill rod is provided with a fastening screw hole in threaded connection with the fastening bolt.

Through adopting above-mentioned technical scheme, location drilling rod passes through fastening bolt with the connecting axle and is connected, and both can be dismantled, make things convenient for people to demolish the replacement with it when location drilling rod wearing and tearing are serious.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when punching is performed at a position where the cooling pipe is inconvenient to connect, people can install the water storage sponge stored with cooling water in the inner cavity of the cylindrical drill bit in advance, and an object to be punched can continuously extrude the water storage sponge when punching is performed, so that the cooling water in the water storage sponge flows out to achieve the purpose of cooling, and the heat dissipation effect is good;

2. after the water in the water storage sponge is squeezed, people can inject water into the water storage sponge through the water inlet hole, and cooling water flows out of the water inlet hole and then can be diffused around along the guide hole and absorbed by the water storage sponge, so that the water storage efficiency is high; the arrangement of the water-proof cloth is beneficial to the concentrated flow of cooling water to the contact part of the helical teeth and the object to be punched, and the cooling effect is good;

3. the cutting ring is connected with the cylindrical drill bit through the mounting bolt, so that the assembly and disassembly are convenient, the connection strength is high, and people can conveniently replace damaged helical teeth; the positioning drill rod is firstly contacted with an object to be punched when the hole is formed, the positioning effect is achieved, and the cutting accuracy is high.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic sectional view of the present embodiment;

FIG. 3 is an exploded view of the embodiment with the water retaining sponge removed;

fig. 4 is an enlarged schematic view at a in fig. 3.

Reference numerals: 1. a connecting shaft; 2. a barrel drill; 21. an inner cavity; 22. mounting grooves; 23. a through hole; 24. a yielding groove; 25. a limiting groove; 26. a water inlet hole; 3. a mounting member; 31. mounting blocks; 311. mounting a screw hole; 32. installing a bolt; 4. cutting a ring; 41. helical teeth; 5. positioning a groove; 51. a fastening hole; 52. fastening a bolt; 6. positioning the drill rod; 61. fastening screw holes; 7. water storage sponge; 71. a flow guide hole; 72. a water-proof cloth.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a diamond hole digger, as shown in fig. 1 and 2, comprising a connecting shaft 1 and a cylindrical drill bit 2 which are fixedly connected, wherein an inner cavity 21 is arranged inside the cylindrical drill bit 2, and an opening is arranged at one end of the inner cavity 21 far away from the connecting shaft 1. One side that connecting axle 1 was kept away from to cylindric drill bit 2 can be dismantled through four group's installed parts 3 and be connected with cutting ring 4, and four group's installed parts 3 are the circumference equipartition along cylindric drill bit 2, and the internal diameter of cutting ring 4 equals the internal diameter of cylindric drill bit 2. One side of cutting ring 4 keeping away from cylindric drill bit 2 has a plurality of skewed teeth 41 along circumferencial direction integrated into one piece, skewed tooth 41 can with wait to punch the contact of object when the trompil, and its sharpness is high, trompil is effectual.

As shown in fig. 3 and 4, the mounting member 3 includes a mounting block 31 and a mounting bolt 32, the mounting block 31 is fixed on one side of the cutting ring 4 close to the cylindrical drill 2, an end surface of the cylindrical drill 2 close to the cutting ring 4 is provided with a mounting groove 22 for the mounting block 31 to extend into, a through hole 23 is provided on an inner wall of the mounting groove 22, a screw portion of the mounting bolt 32 is inserted into the through hole 23, and a mounting screw hole 311 screwed with the mounting bolt 32 is provided on an end surface of the mounting block 31 close to the through hole 23. The outer wall of the cylindrical drill bit 2 is provided with four yielding grooves 24 respectively communicated with the through holes 23, the inner diameter of each yielding groove 24 is larger than the diameter of the head of the mounting bolt 32, and when the mounting bolt 32 is connected with the mounting block 31, the head of the mounting bolt 32 is positioned in the yielding groove 24 and does not exceed the cylindrical drill bit 2. The cutting ring 4 is connected with the cylindrical drill bit 2 through the mounting bolt 32, the connecting strength of the cutting ring 4 and the cylindrical drill bit is high, people can detach and replace the cutting ring 4 when the helical teeth 41 are damaged, and the service life of the hole digger is long.

As shown in fig. 2 and 3, the upper side wall of the inner cavity 21 is provided with a positioning groove 5 extending to the connecting shaft 1, and the positioning groove 5 is positioned in the middle of the cylindrical drill 2 and is concentric with the cylindrical drill 2. The connecting shaft 1 is connected with a positioning drill rod 6, the upper end of the positioning drill rod 6 is positioned in the positioning groove 5, and the lower end of the positioning drill rod 6 exceeds the helical teeth 41. The side wall of the positioning groove 5 is provided with a fastening hole 51, a fastening bolt 52 penetrates through the fastening hole 51, and the top end of the side wall of the positioning drill rod 6 is provided with a fastening screw hole 61 in threaded connection with the fastening bolt 52. When the positioning drill rod 6 is used for drilling holes, the positioning drill rod 6 is firstly contacted with an object to be drilled, so that the surface of the object to be drilled is firstly drilled with the positioning drill rod 6 and then cut by the helical teeth 41, the position is accurate, and the cutting accuracy is high. The positioning drill rod 6 is connected with the connecting shaft 1 through a fastening bolt 52, so that people can replace the damaged positioning drill rod 6 conveniently.

As shown in fig. 2 and 3, an annular limiting groove 25 is formed in the inner wall of the barrel drill 2, the upper inner wall of the limiting groove 25 is flush with the upper inner wall of the inner cavity 21, and the lower inner wall of the limiting groove 25 is located above the lower end surface of the barrel drill 2. The retaining sponge 7 is clamped in the limiting groove 25, and the retaining sponge 7 is clamped in the limiting groove 25 through self elasticity. Before the trompil, people can be in advance with the retaining sponge 7 card that has stored the cooling water and establish in spacing groove 25, and the water in the retaining sponge 7 can be extruded and play the radiating effect of cooling when punching.

As shown in fig. 2 and 3, a water inlet 26 communicated with the water storage sponge 7 is provided on the sidewall of the cylindrical drill bit 2, a diversion hole 71 communicated with the water inlet 26 is provided on the water storage sponge 7, the diversion hole 71 is obliquely provided, and one end far away from the water inlet 26 is a low end. After the water in the water storage sponge 7 is squeezed, people can inject water into the water storage sponge 7 through the water inlet holes 26, and the water guide holes 71 help cooling water to diffuse into the water storage sponge 7 so as to improve the water storage efficiency.

As shown in fig. 2, a water-proof cloth 72 is fixed at one end of the water-storage sponge 7 close to the cutting ring 4, the water-proof cloth 72 is made of a water-proof PVC material, and the cross section of the water-proof cloth 72 is circular and the diameter thereof is smaller than the inner diameter of the cylindrical drill bit 2. The cooling water after the water storage sponge 7 is pressed can flow to the contact part of the helical teeth 41 and the object to be punched from the gap between the waterproof cloth 72 and the cylindrical drill bit 2, and the cooling effect is good.

The implementation principle of the embodiment is as follows: when the position of connecting the cooling tube inconveniently punches, people can install the retaining sponge 7 that has absorbed the cooling water in the inner chamber 21 of cylindric drill bit 2 in advance, during the trompil location drilling rod 6 earlier with wait to punch the object contact and can drill in advance and establish the hole that is used for the location, the drilling precision height. Along with the hole digger with treat the continuous contact of trompil object, treat that the trompil object can constantly extrude retaining sponge 7 for the purpose of cooling water outflow in order to reach cooling in the retaining sponge 7, the radiating effect is good.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a diamond hole digger, includes connecting axle (1) and cylindric drill bit (2), the inside of cylindric drill bit (2) is equipped with inner chamber (21), the one end that connecting axle (1) was kept away from in inner chamber (21) is equipped with opening, its characterized in that: one end of the inner cavity (21) close to the connecting shaft (1) is connected with a water storage sponge (7), the water storage sponge (7) is clamped in the inner cavity (21) through self elasticity, and a water inlet hole (26) communicated with the water storage sponge (7) is formed in the side wall of the cylindrical drill bit (2); one side that connecting axle (1) was kept away from in cylindric drill bit (2) can be dismantled through multiunit installed part (3) and be connected with cutting ring (4), one side that cylindric drill bit (2) were kept away from in cutting ring (4) has a plurality of skewed teeth (41) along circumferencial direction integrated into one piece.

2. A diamond tapper as claimed in claim 1, wherein: the water storage sponge (7) is provided with a flow guide hole (71) communicated with the water inlet hole (26).

3. A diamond tapper as claimed in claim 2, wherein: the diversion hole (71) is obliquely arranged, and one end far away from the water inlet hole (26) is a lower end.

4. A diamond tapper as claimed in claim 1, wherein: be equipped with spacing groove (25) on the inner wall of cylindric drill bit (2), retaining sponge (7) joint is in spacing groove (25).

5. A diamond tapper as claimed in claim 1, wherein: one side of the water storage sponge (7) close to the cutting ring (4) is fixed with a water-proof water-separating cloth (72), and the cross section of the water-separating cloth (72) is circular and the diameter of the water-separating cloth is smaller than the inner diameter of the cylindrical drill bit (2).

6. A diamond tapper as claimed in claim 1, wherein: installation part (3) including fix cutting ring (4) installation piece (31) and with installation piece (31) threaded connection's mounting bolt (32) that are close to cylindric drill bit (2) one side, the terminal surface that cylindric drill bit (2) are close to cutting ring (4) is equipped with mounting groove (22) that supply installation piece (31) to stretch into, be equipped with through hole (23) that supply mounting bolt (32) to penetrate on the lateral wall of mounting groove (22).

7. The diamond tapper of claim 6, wherein: be equipped with on the outer wall of cylindric drill bit (2) with mounting groove (22) intercommunication abdicate groove (24), the head of construction bolt (32) is arranged in abdicating groove (24) and does not surpass cylindric drill bit (2).

8. A diamond tapper as claimed in claim 1, wherein: one side of the connecting shaft (1) close to the cylindrical drill bit (2) is connected with a positioning drill rod (6) with the lower end exceeding the helical teeth (41).

9. A diamond tapper as claimed in claim 8, wherein: the positioning device is characterized in that a positioning groove (5) extending to the connecting shaft (1) is formed in the top wall of the inner cavity (21), the top end of the positioning drill rod (6) is located in the positioning groove (5), a fastening hole (51) is formed in the side wall of the positioning groove (5), a fastening bolt (52) penetrates through the fastening hole (51), and a fastening screw hole (61) in threaded connection with the fastening bolt (52) is formed in the top end of the side wall of the positioning drill rod (6).