CN208033741U - A kind of trepanning extension bar - Google Patents
A kind of trepanning extension bar Download PDFInfo
- Publication number
- CN208033741U CN208033741U CN201820088724.XU CN201820088724U CN208033741U CN 208033741 U CN208033741 U CN 208033741U CN 201820088724 U CN201820088724 U CN 201820088724U CN 208033741 U CN208033741 U CN 208033741U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- sliding block
- matching seat
- extension bar
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of trepanning extension bar, including connecting rod, matching seat and drill bit, the drill bit are fixedly connected with connecting rod, and link rotatable drives the rotation of drill bit；The connecting rod is placed in matching seat, and several balls are equipped in matching seat, and connecting rod is equipped with groove compatible with several balls, and when the groove on connecting rod is moved at the ball of matching seat, connecting rod is fixedly connected with matching seat；Compared with prior art, pass through the pulling to sliding block, and then control the movement of ball, it also can be by offseting to ball, the movement to sliding block is realized, to realize the detachable connection between matching seat and connecting rod, and the reset by spring to sliding block, so that matching seat is more flexible, convenient for connection of the drill bit on matching seat and fall off.
Description
Technical field
The utility model belongs to carpenter's venting techniques field, more particularly, to a kind of trepanning extension bar.
Background technology
Trepanning extension bar is used to be mounted on common electric drill, can be easily various in copper, iron, stainless steel, organic glass etc.
The arbitrary cutting that circular hole, square hole, delthyrium, straight line, curve are carried out on any curved surface such as plane, the spherical surface of plank, has operation
Flexibly, effect easy to use, safe to use and widely used.
Trepanning extension bar common are two kinds of fixed diameter and variable-diameter, and the trepanning extension bar of variable-diameter is usually used in indoor and outdoor
Finishing, the trepanning extension bar of the prior art is relative complex when being attached installation with drill bit, and coupling mechanism force is insufficient, is easy early
The sliding and loosening of upper drill bit, to influence the precision of processing so that in operating process, suffered external force is uneven, is easy
The damage of trepanning connecting rod is caused, so that the service life of connecting rod declines.
China Patent No. CN201728405U discloses a kind of hole hard iron extension bar with hexagonal quick coupler, more particularly to a kind of use
It is greater than or equal to bi-metal opener, carpenter's hole saw, alloy boring device, particle hole saw and the diamond hole saw of 32mm in diameter
The hole saw extension rod with hexagonal quick coupler.Including main body, centre drill is cased in main body, the both sides of the centre drill are respectively equipped with
Buffer gear, the buffer gear are located in main body, and the buffer gear includes pin hole, pin, compression spring and clamping block, institute
Compression spring is cased on the pin stated, the pin is sleeved in main body, and the side of main body is bolted with clamping block, the clamping block with
Pin is in contact, and the compression spring is in contact with pin hole, and the centre drill is mutually fixed by fixed link with main body.
This hole saw extension rod disclosed above is screwed out by the way that pin and clamping block one are logical, then the superior precession hole of hole saw
Bottom away from extension bar screw thread, then pin and clamping block are screwed in the pin hole of hole saw rear cover, realize the fixation of drill bit, this mode
It is complicated, it is cumbersome, the fixation of drill bit cannot be realized faster, influence processing efficiency.
Utility model content
The utility model is to provide a kind of accurate positioning to overcome above-mentioned defect in the prior art, easy to operate, behaviour
Make efficient trepanning extension bar.
In order to reach object above, technical solution is used by the utility model：A kind of trepanning extension bar, including connecting rod,
Matching seat and drill bit, the drill bit are fixedly connected with connecting rod, and link rotatable drives the rotation of drill bit；The connecting rod is placed in cooperation
In seat, and several balls are equipped in matching seat, connecting rod is equipped with groove compatible with several balls, when the groove on connecting rod moves
It moves to the ball of matching seat, connecting rod is fixedly connected with matching seat.
As a kind of preferred embodiment of the utility model, the matching seat includes ontology and sliding block, and it is external that sliding block is located at this
On wall, and sliding block is slidably connected with ontology, and several balls are located on ontology.
As a kind of preferred embodiment of the utility model, the ontology includes the first ladder and second-order of annular setting
Ladder, sliding block is located on the first ladder and the second ladder, and slider top offsets with ontology.
As a kind of preferred embodiment of the utility model, the slider bottom is in contact with the second ladder outer wall, and sliding block
It is slidably connected with the second ladder outer wall.
As a kind of preferred embodiment of the utility model, annular is provided with spring, spring direction rolling at second ladder
Pearl, and spring is fixedly connected with the second ladder.
As a kind of preferred embodiment of the utility model, the spring top offsets with ball.
As a kind of preferred embodiment of the utility model, the spring is between ontology and sliding block.
As a kind of preferred embodiment of the utility model, the matching seat is equipped with external screw thread seat towards drill bit side.
As a kind of preferred embodiment of the utility model, protective cover is connected on the external screw thread seat.
As a kind of preferred embodiment of the utility model, nut is connected on the external screw thread seat.
The utility model has the beneficial effects that：Compared with prior art, by the pulling to sliding block, and then ball is controlled
It is mobile, also can be by offseting to ball, movement of the realization to sliding block is detachable between matching seat and connecting rod to realize
Connection, and the reset by spring to sliding block so that matching seat is more flexible, convenient for connection of the drill bit on matching seat and de-
It falls.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of matching seat；
Fig. 3 is the structural schematic diagram of connecting rod；
Fig. 4 is the connection diagram of connecting rod and nut；
Fig. 5 is the side view of nut；
Fig. 6 is the front view of nut；
Reference numeral in figure：Connecting rod 1, matching seat 2, drill bit 3, ball 4, groove 5, ontology 6, sliding block 7, the first ladder 8, the
Two ladders 9, spring 10, external screw thread seat 11, protective cover 12, peep hole 13, nut 14, protrusion 15, circular hole 16.
Specific implementation mode
It elaborates below in conjunction with the accompanying drawings to the utility model embodiment.
As shown in Figs. 1-3, a kind of trepanning extension bar, including connecting rod 1, matching seat 2 and drill bit 3, drill bit 3 is fixed with connecting rod 1 to be connected
It connects, the rotation of connecting rod 1 drives the rotation of drill bit 3；Connecting rod 1 is placed in matching seat 2, and ball 4 is equipped in matching seat 2, on connecting rod 1
Equipped with groove 5 compatible with ball 4, when the groove 5 on connecting rod 1 is moved at the ball 4 of matching seat 2, connecting rod 1 and matching seat
2 are fixedly connected, and connecting rod 1 is equipped with peep hole 13, and matching seat 2 is equipped with external screw thread seat 11 towards 3 side of drill bit, connects on external screw thread seat 11
It is connected to protective cover 12.
Drill bit 3 is fixedly connected with connecting rod 1, by observing the peep hole 13 on connecting rod 1, enters connecting rod 1 to observe drill bit 3
Depth so that drill bit 3 enters the certain depth of connecting rod 1, so that it is guaranteed that being stably connected between drill bit 3 and connecting rod 1, protective cover 12
It is fixedly connected with matching seat 2 by external screw thread seat 11, protective cover 12 is located at 3 side of drill bit, and broken in processing for placing drill bit 3
The splashing of bits.
Ball 4 there are three being set in matching seat 2, three balls 4 are in the same plane, and the quantity of ball 4 can be more practical
It needs to be designed, here since connecting rod 1 is regular hexagon, matching seat 2 is equipped with hexagonal hole compatible with connecting rod 1,
There are three ball 4 is set, and three balls 4 are uniformly distributed, and groove 5 is the annular groove on connecting rod 1, and 5 surface of groove is suitable with 4 phase of ball
Match so that ball 4 can fit with groove 5.
Matching seat 2 includes ontology 6 and sliding block 7, and sliding block 7 is located on 6 outer wall of ontology, and sliding block 7 is slidably connected with ontology 6,
Ball 4 is located on ontology 6, and ontology 6 is equipped with hole compatible with ball 4, and the diameter of ball 4 is more than 4 place ontology 6 of ball
The diameter at place, the aperture for hole compatible with ball 4 on ontology 6 are less than the diameter of ball 4 so that ball 4 can be at this
It is moved on body 6, but ball 4 will not drop out ontology 6.
Ontology 6 includes the first ladder 8 and the second ladder 9 of annular setting, and sliding block 7 is located at the first ladder 8 and the second ladder 9
On, and 7 top of sliding block offsets with ontology 6,7 bottom of sliding block is in contact with 9 outer wall of the second ladder, and outside sliding block 7 and the second ladder 9
Wall is slidably connected, and annular is provided with spring 10 at the second ladder 9, and spring 10 is towards ball 4, and spring 10 and the second ladder 9 are solid
Fixed connection, 10 top of spring offset with ball 4, and spring 10 is between ontology 6 and sliding block 7.
10 annular of spring is set on 6 outer wall of ontology, and is fixedly connected at 10 one end of spring and the second ladder 9, spring 10
The other end offsets with ball 4, in actual use, connecting rod 1 be inserted in matching seat 2, at this time the hand of operating personnel
On sliding block 7, ball 4 is under the action of 1 outer wall of connecting rod so that ball 4 is towards movement at sliding block 7, while sliding block 7 is in ontology
It is moved on 6, to which sliding block 7 drives ball 4 to be moved towards at the second ladder 9,4 holddown spring 10 of ball at this time, ball 4 and connecting rod
Outer wall offsets, when sliding block 7 is moved to certain position, since ball 4 cannot pass through ontology so that and ball 4 offsets with sliding block 7,
It is exactly the extreme position of sliding block 7 at this time.
When connecting rod 1 is moved to certain position, the groove 5 on connecting rod 1 is adapted with ball 4, and spring 10 resets at this time, band
Movable slider 7 resets, and ball 4 and 5 clamping of groove, spring 10 offset with ball 4, realizes the fixed company between connecting rod 1 and matching seat 2
It connects.
When taking out connecting rod 1 from matching seat 2, by sliding block 7 to movement at the second ladder 9, sliding block 7 drives ball 4
It is skidded off from groove 5 so that ball 4 does not lie in 5 clamping of groove, connecting rod 1 is skidded off matching seat 2, ball 4 and sliding block 7 are in spring
It is resetted under the action of 10.
Another embodiment can be equipped with nut 14 on external screw thread seat 11, be connect with protective cover 12 by nut 14, nut 14
It is equipped with protrusion 15,15 outside of protrusion is equipped with screw thread so that protrusion 15 is connect with protective cover 12, and nut 14 is flat, is used
Person can rotate protective cover 12, be convenient for protective cover when backing out protective cover 12 by the parallel portion of hand-held nut 14
12 handling, while when installing protective cover 12 so that the connection between protective cover 12 and connecting rod 1 is more firm；Protective cover 12
It is only connect with 15 part of protrusion of nut 14, reduces the contact area between protective cover 12 and nut 14, convenient for handling.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model；Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Although reference numeral in figure is used more herein：Connecting rod 1, matching seat 2, drill bit 3, ball 4, groove 5, ontology
6, sliding block 7, the first ladder 8, the second ladder 9, spring 10, external screw thread seat 11, protective cover 12, peep hole 13, nut 14, protrusion
15, the equal terms of circular hole 16, but it does not preclude the possibility of using other terms；The use of these items is only for more easily
Describe and explain the essence of the utility model；It is construed as any one of the additional limitations all and is and the spirit of the present invention
It disagrees.
Claims (10)
1. a kind of trepanning extension bar, which is characterized in that including connecting rod（1）, matching seat（2）And drill bit（3）, the drill bit（3）With company
Bar（1）It is fixedly connected, connecting rod（1）Rotation drives drill bit（3）Rotation；The connecting rod（1）It is placed in matching seat（2）It is interior, and match
Close seat（2）It is interior to be equipped with several balls（4）, connecting rod（1）It is equipped with and several balls（4）Compatible groove（5）, work as connecting rod（1）
On groove（5）It is moved to matching seat（2）Ball（4）Place, connecting rod（1）With matching seat（2）It is fixedly connected.
2. a kind of trepanning extension bar according to claim 1, which is characterized in that the matching seat（2）Including ontology（6）And cunning
Block（7）, sliding block（7）Positioned at ontology（6）On outer wall, and sliding block（7）With ontology（6）It is slidably connected, several balls（4）Positioned at ontology
（6）On.
3. a kind of trepanning extension bar according to claim 2, which is characterized in that the ontology（6）Include the of annular setting
One ladder（8）With the second ladder（9）, sliding block（7）Positioned at the first ladder（8）With the second ladder（9）On, and sliding block（7）Top with
Ontology（6）It offsets.
4. a kind of trepanning extension bar according to claim 3, which is characterized in that the sliding block（7）Bottom and the second ladder（9）
Outer wall is in contact, and sliding block（7）With the second ladder（9）Outer wall is slidably connected.
5. a kind of trepanning extension bar according to claim 4, which is characterized in that second ladder（9）Place's annular is provided with
Spring（10）, spring（10）Towards ball（4）, and spring（10）With the second ladder（9）It is fixedly connected.
6. a kind of trepanning extension bar according to claim 5, which is characterized in that the spring（10）Top and ball（4）Phase
It supports.
7. a kind of trepanning extension bar according to claim 6, which is characterized in that the spring（10）Positioned at ontology（6）With cunning
Block（7）Between.
8. a kind of trepanning extension bar according to claim 1, which is characterized in that the matching seat（2）Towards drill bit（3）Side is set
There is external screw thread seat（11）.
9. a kind of trepanning extension bar according to claim 8, which is characterized in that the external screw thread seat（11）On be connected with protection
Cover（12）.
10. a kind of trepanning extension bar according to claim 9, which is characterized in that the external screw thread seat（11）On be connected with nut
（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820088724.XU CN208033741U (en) | 2018-01-19 | 2018-01-19 | A kind of trepanning extension bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820088724.XU CN208033741U (en) | 2018-01-19 | 2018-01-19 | A kind of trepanning extension bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208033741U true CN208033741U (en) | 2018-11-02 |
Family
ID=63953699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820088724.XU Expired - Fee Related CN208033741U (en) | 2018-01-19 | 2018-01-19 | A kind of trepanning extension bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208033741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091289A (en) * | 2020-10-14 | 2020-12-18 | 浙江亚厦装饰股份有限公司 | Hole digger with waste material popup structure |
-
2018
- 2018-01-19 CN CN201820088724.XU patent/CN208033741U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091289A (en) * | 2020-10-14 | 2020-12-18 | 浙江亚厦装饰股份有限公司 | Hole digger with waste material popup structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 Termination date: 20220119 |