TWM525805U - Easy detachable/installable round hole saw - Google Patents

Description

Easy to disassemble round hole saw

This creation is a circular hole saw, especially a circular hole saw that is easy to disassemble.

Refer to the round hole saw with the return material of Chinese Patent No. 2400251, and fix the positioning drill bit at the end of the return rod by the tightening screw. The round hole saw is fixedly connected with the return sleeve by the cylindrical head screw, and the return rod is the same as the return sleeve. Reverse thread connection, the return rod is machined with a left-handed external thread, and the return rod is machined with a left-handed internal thread. When the return rod is turned to the limit position, the return sleeve is rotated and the round hole is sawed. The returning wrench card is connected with the returning sleeve, and the clamping method of the utility model adopts the biased returning sleeve and the returning wrench to be connected; the other connecting method is to fix the connecting and returning sleeve by using the hex nut, and then the card is connected by the returning wrench. Hexagon nuts, at the same time, hex nuts and washers secure the connection of the return sleeve and the circular hole saw. Position the stripper by hand or its fixture, and reverse the stripper to run downwards. The scraper rod is used to push out the waste block in the round hole.

When the user needs to change the positioning drill bit, the hand should be positioned by hand or its fixing object, then the reverse rotation bar is gradually moved downward, so that the tightening screw moves to the outside of the circular hole saw, and finally the tightness is rotated. Screw the positioning bit away from the return rod. The process of replacing the positioning bit by the user is complicated and not convenient.

In view of the above problems of the prior art, which cannot be effectively solved and overcome, the present applicant has filed this patent application to solve the aforementioned problems.

The problem that this creation is to solve is that the process of replacing the positioning bit is complicated and not convenient.

The easy-to-assemble circular hole saw of the present invention comprises: a base set comprising a body and a pressing member, the body comprising a first through hole and a receiving groove, the first through hole penetrating the body opposite The receiving slot is slidably disposed in the receiving slot, and the pressing member is slidably disposed in the receiving slot and includes a through hole and a first positioning portion, the through hole communicates with the first through hole, and the first positioning portion a cutting member disposed at an inner edge of the through hole; a cutting member detachably connecting the body and including a receiving space; a drilling member including a rod portion and at least a second positioning portion, the The at least one second positioning portion is disposed on one side of the rod portion, the rod portion slidably passes through the first through hole of the body and protrudes from the cutting member through the receiving space of the cutting member, and the at least one The positioning portion is disposed in the through hole of the pressing member, and the pressing member selectively slides relative to the receiving groove to mutually exchange the at least one second positioning portion of the drilling member and the first positioning portion of the pressing member Jam or detach.

The user only needs to selectively press the pressing member to assemble or disengage the drilling member from the base group, and the drilling member can be easily replaced.

Other objects, advantages, and novel features of the present invention will become apparent from the Detailed Description and the accompanying drawings.

With regard to the techniques, means, and effects of the present invention, the three preferred embodiments are described in detail with reference to the drawings. This is for illustrative purposes only and is not limited by the structure of the patent application.

Refer to Figures 1 to 5. The first embodiment of the circular hole saw of the present invention includes a base set 10, a cutting member 20, a drilling member 30 and a fixing group 40. The cutting member 20 is disposed at one end of the base group 10. The fixing group 40 is disposed at one end of the base group 10 opposite to the cutting member 20, and the drilling member 30 slidably penetrates the base group 10, the cutting member 20 and the fixing group 40, the cutting member 20 A workpiece can be cut that can drill the workpiece to position the cutting position of the cutting member 20.

The base unit 10 includes a body 11 , a pressing member 12 , an elastic member 13 and a stopper 14 . The pressing member 12 is slidably disposed on the body 11 , and the elastic member 13 is disposed on the body 11 and the body 11 . The pressing member 12 elastically abuts against the pressing member 12, and the stopping member 14 passes through the body 11 and the pressing member 12, so that the pressing member 12 cannot be separated from the body 11. The body 11 includes a first through hole 111, a receiving groove 112, at least one second through hole 113, a recessed hole 114 and a threaded portion 115. The first through hole 111 extends along an axis L and runs through the body 11 oppositely. The accommodating groove 112 extends perpendicularly to the axis L and communicates with the first through hole 111. The elastic member 13 is disposed at the bottom of the accommodating groove 112. The at least one second through hole 113 extends through the body 11 and The first through hole 111 is parallel, and the concave hole 114 is parallel to the at least one second through hole 113 and disposed at one end of the fixed portion 40 of the body 11. The threaded portion 115 is disposed at the one end of the body 11 adjacent to the cutting member 20 And protruding from the body 11, the first through hole 111 penetrates the threaded portion 115. In this embodiment, the first through hole 111 has a hexagonal cross section, and the second through hole 113 has two numbers. The first through hole 111 is located between the two second through holes 113. The first through hole 111 includes two recesses 1111 , and the two recesses 1111 are respectively recessed on opposite sides of the first through hole 111 . The at least one second through hole 113 includes a first segment 1131 and a second segment 1132. The first segment 1131 is located at one end of the second through hole 113 adjacent to the cutting member 20, and the second segment 1132 is located adjacent to the second through hole 113. One end of the fixed group 40. In this embodiment, the diameter of the first segment 1131 is greater than the diameter of the second segment 1132. The pressing member 12 is slidably received in the receiving groove 112 and includes a through hole 121 and a first positioning portion 122. The through hole 121 communicates with the first through hole 111, and the first positioning portion 122 is disposed on the pressing portion. The member 12 is located on one side of the through hole 121. The stopper 14 passes through the through hole 121 of the pressing member 12 and can abut the inner edge of the through hole 121 adjacent to the side of the elastic member 13. The first positioning portion 122 includes a positioning hole 1221 . The positioning hole 1221 extends through the pressing member 12 adjacent to one end of the elastic member 13 and communicates with the through hole 121 .

The cutting member 20 is detachably coupled to the body 11 and includes a receiving space 21, at least one fixing hole 22 and a screw hole 23, the receiving space 21 is located at one end of the cutting member 20, and the at least one fixing hole 22 and the The screw hole 23 is located at the other end of the cutting member 20, and the screw hole 23 communicates with the receiving space 21. The at least one fixing hole 22 is located on one side of the screw hole 23 and is parallel to each other. The screw hole 23 of the cutting member 20 can be screwed. The threaded portion 115 is disposed, and the at least one fixing hole 22 can be aligned with the at least one second through hole 113. In the embodiment, the number of the fixing holes 22 is two, and the screw holes 23 are located between the two fixing holes 22.

The drilling member 30 includes a rod portion 31 and at least one second positioning portion 32. The at least one second positioning portion 32 is disposed on one side of the rod portion 31. The rod portion 31 slidably penetrates the body 11 The first through hole 111 and the fixing portion 40 protrude from the cutting member 20 through the receiving space 21 of the cutting member 20, and the at least one second positioning portion 32 can be received in the through hole 121 of the pressing member 12. The pressing member 12 selectively slides relative to the receiving groove 112 to latch or disengage the at least one second positioning portion 32 of the drilling member 30 and the first positioning portion 122 of the pressing member 12. In the present embodiment, the cross section of the rod portion 31 of the drilling member 30 is hexagonal corresponding to the cross section of the first through hole 111, and the number of the second positioning portions 32 is two, and the second positioning portion is two. The protrusions 32 are respectively protruded from opposite sides of the rod portion 31 and are respectively slidably disposed on the two recesses 1111 of the first through hole 111. The pressing member 12 selectively slides relative to the receiving groove 112 to the drilling member. One of the second positioning portions 32 of the 30 bis accommodates or disengages the positioning hole 1221 of the pressing member 12.

The fixing group 40 includes a screw cap 41 , at least one sliding pin 42 , at least one elastic body 43 and at least one nut 44 . The screw cap 41 is located at one end of the body 11 opposite to the cutting member 20 . The slidable cover 41 is slidably disposed. The at least one sliding pin 42 slidably passes through the at least one second through hole 113 and penetrates the screw cap 41. The at least one elastic body 43 is sleeved with the at least one slide The shifting pin 42 is received in the at least one second through hole 113. The at least one nut 44 is screwed on the at least one sliding pin 42 and abuts against the screw cap 41 opposite to one end of the body 11. The screw cap 41 The at least one sliding pin 42 is selectively driven to slide relative to the at least one second through hole 113 such that the at least one sliding pin 42 receives or disengages at least one fixing hole 22 of the cutting member 20. In this embodiment, the number of the sliding pins 42 is two, the number of the elastic bodies 43 is two, and the number of the nuts 44 is two, and one of the two sliding pins 42 is slidably disposed. One of the two second through holes 113 is slidably disposed on the other of the second through holes 113. One of the two elastic bodies 43 is provided with one of the two sliding pins 42 and is accommodated. One of the two second through holes 113, the other elastic body 43 is sleeved with another sliding pin 42 and received in the other second through hole 113, one of the two nuts 44 is screwed on the One of the two sliding pins 42 is screwed to the other of the sliding pins 42. The cap 41 includes at least one arcuate chute 411 and a top crotch portion 412 . The at least one arc chute 411 extends through opposite ends of the cap 41 . The top crotch portion 412 extends toward the body 11 , the at least one The sliding pin 42 is disposed through the at least one curved sliding slot 411, and the rotating cover 41 is axially rotatable about the axis L such that the at least one curved sliding slot 411 and the at least one sliding pin 42 slide relative to each other. The recessed hole 114 is located at one end of the body 11 adjacent to the cover member 41. The top sill portion 412 selectively extends into the recessed hole 114 as the cap 41 rotates or abuts the body 11 adjacent to the cap 41 One end. In the embodiment, the number of the arcuate chutes 411 is two, and the top crotch portion 412 is located on one side of one of the two arc chutes 411. The at least one sliding pin 42 includes a large diameter section 421 and a small diameter section 422. The large diameter section 421 is slidably disposed on the first section 1131. The small diameter section 422 is slidably disposed on the second section 1132. An elastic body 43 is disposed on the small diameter section 422 and elastically abuts the end surface of the small diameter section 422 adjacent to the large diameter section 421, and the at least one elastic body 43 is received in the first section 1131 and elastically abuts The first segment 1131 is adjacent to the end surface of the second segment 1132 , and the at least one nut 44 is screwed to the small diameter segment 422 of the at least one sliding pin 42 . In this embodiment, the diameter of the large diameter section 421 is smaller than the diameter of the first section 1131 and larger than the diameter of the second section 1132. The diameter of the small diameter section 422 is smaller than the diameter of the second section 1132.

Refer to Figures 4 to 7. The pressing member 12 is switchable between a first position (Fig. 4, Fig. 5) and a second position (Fig. 6, Fig. 7). When the pressing member 12 is located at the first position, the elastic member 13 elastically pushes against the pressing member 12 such that the through hole 121 abuts against the stopping member 14 adjacent to the inner edge of the elastic member 13 , the drilling member 30 The second positioning portion 32 is located in the through hole 121, and the positioning hole 1221 of the pressing member 12 is sleeved with one of the two second positioning portions 32, so that the drilling member 30 and the base group 10 are firmly fixed. Combine. When the pressing member 12 is changed from the first position to the second position, the user applies a force to the pressing member 12, so that the pressing member 12 urges the pressing member 12 to face against the elastic abutting force of the elastic member 13. The accommodating groove 112 is slid in the groove bottom direction. When the pressing member 12 is in the second position, the stopping member 14 is disengaged from the through hole 121 adjacent to the inner edge of the elastic member 13, and one of the second positioning portions 32 of the drilling member 30 is separated from the pressing member. The positioning hole 1221 of the 12, the drilling member 30 can slide along the first through hole 111 to disengage the base set 10 and the cutting member 20.

Reference is made to Figures 1, 3, 8, and 9. The fixed set 40 is switchable between a third position (Fig. 1, Fig. 3) and a fourth position (Fig. 8, Fig. 9). When the fixing group 40 is located at the third position, the screw hole 23 of the cutting member 20 is screwed on the threaded portion 115 of the body 11, and the two fixing holes 22 are respectively aligned with the two first segments 1131, the two sliding pins. The large diameter segments 421 of the 42 extend into the two fixing holes 22 respectively, so that the cutting member 20 cannot be rotated relative to the body 11 and cannot be disengaged. The screw cap 41 abuts against the body 11 and the top jaw portion 412 extends into the body. The recess 114. When the fixing group 40 is changed from the third position to the fourth position, the user applies a force to the screw cap 41, so that the screw cap 41 overcomes the force of the elastic deformation of the two elastic bodies 43 to drive the screw cap 41 toward Sliding away from the direction of the body 11, and then rotating the cap 41 about the axis L, and the small diameter section 422 of the sliding pin 42 and the curved chute 411 of the cap 41 are relatively slipped . When the fixing group 40 is located at the fourth position, the top portion 412 abuts the end surface of the body 11 away from the cutting member 20, so that the large diameter segments 421 of the two sliding pins 42 are respectively separated from the two fixing holes 22, The cutting member 20 can be rotated away from the body 11 with respect to the body 11.

Refer to Figures 10 and 11. The structure of the second embodiment of the circular hole saw which is easy to assemble and disassemble is substantially the same as that of the first embodiment, and the operation mode of the second embodiment of the circular hole saw is substantially the same as that of the first embodiment. The difference is the second embodiment of the circular hole saw, wherein the first positioning portion 122 of the pressing member 12 is disposed in the through hole 121 adjacent to the inner edge of the elastic member 13 and extends away from the elastic member 13 for each direction. A second positioning portion 32 is provided with a recess 321 . The pressing member 12 selectively slides relative to the receiving slot 112 to extend or disengage the first positioning portion 122 of the pressing member 12 into or out of the drilling member. One of the 30 bis grooves 321 .

Refer to Figure 12. The structure of the third embodiment of the circular hole saw which is easy to assemble and disassemble is substantially the same as that of the first embodiment, and the operation mode of the third embodiment of the circular hole saw is substantially the same as that of the first embodiment. The difference is the third embodiment of the circular hole saw, wherein the rod portion 31 of the drilling member 30 is provided with a through hole 311, and the through hole 311 extends through opposite sides of the rod portion 31, and a pin A is inserted through the through hole a hole 311, one end of the latch A protrudes from one side of the rod portion 31 to form one of the two second positioning portions 32, and the other end of the latch A protrudes from the other end of the rod portion 31 to form another one. The second positioning portion 32.

In summary, the easy-to-install circular hole saw has the following advantages:

1. The user can apply a force to the pressing member 12 to change the pressing member 12 between the first position and the second position, thereby being able to easily fix or disengage the drilling member 30 from the base group. 10. And the user can apply force to the screw cap 41 to change the fixing group 40 between the third position and the fourth position, so that the cutting member 20 can be easily fixed or disengaged from the base group 10.

2. When the fixing group 40 is located at the fourth position, the top portion 412 abuts the end surface of the body 11 away from the cutting member 20, so that the large diameter portion 421 of the two sliding pins 42 is maintained away from the two fixing portions. The position of the aperture 22 allows the user to continue to pivot or rotate the cutting member 20 relative to the base assembly 10 to assemble or disengage each other.

However, the foregoing is only a preferred embodiment of the present invention, and the scope of the present invention may not be limited thereto, so any change in the numerical value or replacement of the equivalent element, or an equivalent change according to the scope of the patent application of the present invention. And the modifications should still be covered by this creation patent.

10‧‧‧Pedestal group
11‧‧‧Ontology
111‧‧‧First perforation
1111‧‧‧ recess
112‧‧‧ accommodating slots
113‧‧‧Second perforation
1131‧‧‧ first paragraph
1132‧‧‧ second paragraph
114‧‧‧ recessed hole
115‧‧‧Threading Department
12‧‧‧Pressing parts
121‧‧‧through hole
122‧‧‧First Positioning Department
1221‧‧‧Positioning holes
13‧‧‧Flexible parts
14‧‧‧stops
20‧‧‧Cut parts
21‧‧‧ accommodation space
22‧‧‧Fixed holes
23‧‧‧ screw holes
30‧‧‧Drilling parts
31‧‧‧ pole
311‧‧‧through holes
32‧‧‧Second Positioning Department
321‧‧‧ Groove
40‧‧‧Fixed group
41‧‧‧Capping
411‧‧‧Arc chute
412‧‧‧Top Department
42‧‧‧Slip pin
421‧‧‧ Large diameter section
422‧‧‧Small path
43‧‧‧ Elastomers
44‧‧‧ nuts
A‧‧‧Tram
L‧‧‧ axis

Figure 1 is a perspective view of the first embodiment of the circular hole saw which is easy to assemble and disassemble. Fig. 2 is an exploded perspective view of the first embodiment of the circular hole saw which is easy to assemble and disassemble. Figure 3 is a cross-sectional view taken from the first perspective of Figure 1, showing the fixed set in the third position. Figure 4 is a cross-sectional view taken from the second perspective of Figure 1. Figure 5 is a cross-sectional view taken from the third perspective of Figure 1, showing the pressing member in the first position. Figure 6 is a continuation of Figure 5 showing the push member transitioning from a first position to a second position. Figure 7: is a continuation of Figure 6, showing that the drilled member can be detached from the base set. Figure 8 is a continuation of Figure 1 showing the fixed set transitioning from a third position to a fourth position. Figure 9 is a cross-sectional view taken from the first perspective of Figure 8. Fig. 10 is an exploded perspective view showing the second embodiment of the circular hole saw which is easy to assemble and disassemble. Figure 11 is a cross-sectional view showing a second embodiment of the circular hole saw which is easy to assemble and disassemble. Figure 12 is a perspective exploded view of the third embodiment of the circular hole saw which is easy to assemble and disassemble.

10‧‧‧Pedestal group

11‧‧‧Ontology

111‧‧‧First perforation

112‧‧‧ accommodating slots

113‧‧‧Second perforation

114‧‧‧ recessed hole

12‧‧‧Pressing parts

121‧‧‧through hole

122‧‧‧First Positioning Department

1221‧‧‧Positioning holes

13‧‧‧Flexible parts

14‧‧‧stops

20‧‧‧Cut parts

21‧‧‧ accommodation space

22‧‧‧Fixed holes

23‧‧‧ screw holes

30‧‧‧Drilling parts

31‧‧‧ pole

32‧‧‧Second Positioning Department

40‧‧‧Fixed group

41‧‧‧Capping

411‧‧‧Arc chute

412‧‧‧Top Department

42‧‧‧Slip pin

421‧‧‧ Large diameter section

422‧‧‧Small path

43‧‧‧ Elastomers

44‧‧‧ nuts

Claims (10)

An easy-to-assemble circular hole saw, comprising: a base set comprising a body and a pressing member, the body comprising a first through hole and a receiving groove, the first through hole extending through opposite ends of the body The accommodating groove is connected to the first through hole, and the pressing member is slidably disposed in the accommodating groove and includes a through hole and a first positioning portion, the through hole communicates with the first through hole, and the first positioning portion is located at the a side of the through hole; a cutting member detachably connecting the body and including a receiving space; a drilling member including a rod portion and at least one second positioning portion, the at least one second positioning portion being disposed on One side of the rod portion, the rod portion slidably passes through the first through hole of the body and protrudes through the receiving space of the cutting member, and the at least one second positioning portion can be accommodated a through hole of the pressing member, the pressing member selectively sliding relative to the receiving groove to cause the first positioning portion of the pressing member to selectively engage at least one second positioning portion of the drilling member. The easy-to-assemble circular hole saw of claim 1, wherein the base set further comprises an elastic member and a stopper, the elastic member is disposed at the bottom of the receiving groove and elastically abuts the pressing The stopper penetrates the body and passes through the through hole of the pressing member, and the stopper can abut the inner edge of the through hole adjacent to the elastic member side. The detachable circular hole saw of claim 2, wherein the first through hole has a hexagonal cross section and includes two recesses, and the two recesses are respectively recessed on opposite sides of the first through hole, the drilling part The cross section of the rod portion is hexagonal corresponding to the cross section of the first perforation, and the number of the second positioning portions is two, and the two second positioning portions respectively protrude from opposite sides of the rod portion and can respectively slide Provided in the two recesses of the first perforation. The easy-to-assemble circular hole saw according to claim 1, wherein the number of the second positioning portions is two, and the rod portion of the drilling member is provided with a through hole, and the through hole penetrates the opposite sides of the rod portion. a latch is disposed in the through hole, and one end of the latch protrudes from one side of the rod portion to form one of the two second positioning portions, and the other end of the latch protrudes from the other side of the rod portion to form another a second positioning portion. The easy-to-assemble circular hole saw according to claim 1, wherein the first positioning portion of the pressing member is disposed at the inner edge of the through hole adjacent to the elastic member and extends away from the elastic member, each of the The two positioning portions are provided with a groove, and the pressing member selectively slides relative to the receiving groove to cause the first positioning portion of the pressing member to protrude into or out of one of the two grooves of the drilling member. The detachable circular hole saw of claim 4, wherein the first positioning portion of the pressing member comprises a positioning hole, the positioning hole penetrating the pressing member adjacent to one end of the elastic member and communicating with the through hole, the pressing The member selectively slides relative to the accommodating groove such that the positioning hole of the pressing member selectively sleeves one of the second positioning portions of the drilling member. The easy-to-disassemble circular hole saw according to any one of claims 1 to 6, comprising a fixing group, the fixing group comprising a screw cap and at least one sliding pin, the screw cap being located on the body opposite to the One end of the cutting member, the drilling member slidably passing through the screw cap, the body comprising at least one second through hole, the at least one second through hole penetrating the body and parallel to the first through hole, the at least one slip The pin slidably passes through the at least one second through hole and is connected to the screw cap. The cutting member is screwed to the body and includes at least one fixing hole. The at least one fixing hole and the receiving space are respectively disposed opposite to the cutting member. And the cap selectively drives the at least one sliding pin to slide relative to the second through hole such that the at least one sliding pin receives or disengages at least one fixing hole of the cutting member. The easy-to-assemble circular hole saw according to claim 7, wherein the screw cap comprises at least one curved chute and a top stern, the at least one arc chute extending through opposite ends of the cap, the top cymbal a portion extending toward the body, the at least one sliding pin penetrating the at least one arcuate chute, the first perforation extending along an axis and extending through opposite ends of the body, the cap being rotatable about the axis The at least one curved chute is relatively slidably opposite to the at least one sliding pin, and the body includes a concave hole parallel to the at least one second through hole and disposed adjacent to one end of the rotating cover The top sill portion selectively projects into the recessed hole as the cap rotates or abuts the body adjacent to an end surface of the cap. The easy-to-assemble circular hole saw of claim 8, wherein the at least one second through hole comprises a first segment and a second segment, the at least one sliding pin comprising a large diameter segment and a small diameter segment, The large diameter section is slidably disposed in the first section, and the small diameter section is slidably disposed in the second section. The fixing group includes at least one elastic body and at least one nut, and the at least one elastic body sleeves the small diameter section and Elastically abutting the small diameter section adjacent to the end surface of the large diameter section, and the at least one elastic body is received in the first section and elastically abuts the end surface of the first section adjacent to the second section, the at least one screw The cap screw is disposed on the small diameter section of the at least one slip pin and abuts against the screw cap opposite to one end of the body. The easy-to-assemble circular hole saw according to claim 9, wherein the cutting member comprises a screw hole, the at least one fixing hole is located on one side of the screw hole and parallel to each other, and the screw hole communicates with the receiving space, the body A threaded portion protrudes from one end of the cutting member, the first through hole extends through the threaded portion, the screw hole of the cutting member can be screwed to the threaded portion, and the at least one fixing hole can be aligned with the at least one second through hole .