CN213224424U - Diameter-variable concentric hole opener - Google Patents
Diameter-variable concentric hole opener Download PDFInfo
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- CN213224424U CN213224424U CN202021730075.2U CN202021730075U CN213224424U CN 213224424 U CN213224424 U CN 213224424U CN 202021730075 U CN202021730075 U CN 202021730075U CN 213224424 U CN213224424 U CN 213224424U
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Abstract
The utility model discloses a concentric hole digger of variable diameter mainly relates to the building decoration field. Including the fixed plate, the center department of fixed plate is equipped with the through-hole, sliding connection has the slide bar in the through-hole, the bottom of slide bar is rotated and is connected with the dead lever, the bottom of dead lever is equipped with spliced pole, its characterized in that: the utility model discloses a portable solid-state image sensor, including dead lever, fixed plate, regulation screw, supporting rod, fixed plate, the dead lever is last to dismantle to be connected with the external diameter hole digger, the bottom of fixed plate has branch along the sliding connection of radial symmetry, the one end of branch is fixed with the arc splint, the bottom of fixed plate is equipped with adjusting screw, adjusting screw and branch threaded connection. The beneficial effects of the utility model reside in that: the expanded round hole can be kept concentric with the existing hole, and the reaming accuracy and efficiency are greatly improved.
Description
Technical Field
The utility model relates to a building decoration field specifically is a concentric hole digger of variable footpath.
Background
In the decoration, the plasterboard suspended ceiling is simple and practical, the application is very extensive, and holes with various sizes are covered in the suspended ceiling, so that the hole opening work is inevitable. However, if the size is smaller after the hole is opened, the hole must be opened again, that is, the hole must be opened in the concentric circle, the original method is very complicated and the efficiency is lower, the newly opened circular hole may be far away from the measured center position, which causes the accuracy of the hole to be reduced, and the hole is difficult to be perfectly matched with the existing circular hole.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a concentric hole digger of variable diameter, it can guarantee that the round hole of expanding keeps concentric with existing hole, has improved reaming degree of accuracy and efficiency greatly.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:
the utility model provides a concentric hole digger of variable footpath, includes the fixed plate, the center department of fixed plate is equipped with the through-hole, sliding connection has the slide bar in the through-hole, the bottom of slide bar is rotated and is connected with the dead lever, the bottom of dead lever is equipped with the spliced pole, can dismantle on the dead lever and be connected with the external diameter hole digger, the bottom of fixed plate has branch along the sliding connection of radial symmetry, the one end of branch is fixed with arc splint, the bottom of fixed plate is rotated and is connected with adjusting screw, adjusting screw and branch threaded connection.
Furthermore, the edge array of through-hole distributes and has the lug, be equipped with the spout along length direction on the slide bar, lug and spout sliding connection.
Further, the bottom symmetry of fixed plate is equipped with the fixing base, adjusting screw runs through behind the fixing base with branch threaded connection, the bottom symmetry of fixed plate is equipped with the slide, branch sliding connection is on the slide.
Further, the outer diameter hole digger is in a circular shell shape with an open top, and the top of the outer diameter hole digger is provided with hole digging teeth.
Furthermore, the bottom of arc splint is equipped with the lockstitch, what the external diameter hole digger was gone up the symmetry is equipped with fixed ear, be equipped with the locating lever in the fixed ear, the locating lever passes fixed ear after and pegs graft with the dead lever activity.
Contrast prior art, the beneficial effects of the utility model reside in that:
the utility model discloses set up the fixed plate, and slide on the radial direction of fixed plate and set up branch, the end of branch is equipped with arc splint, it removes to drive branch through adjustment adjusting screw during the use, and then make arc splint press close to with the lateral wall of current round hole, realize the fixed with current round hole, the adjusting screw who needs synchronous regulation both sides during rotation, in order to guarantee the center pin of slide bar and the coincidence of the centre of a circle in current round hole, the external diameter hole digger of assurance bottom realizes with current round hole concentric, then it is fixed with the spliced pole of instruments such as hand drill and bottom, utilize its rotation to drive the rotation of external diameter hole digger, promote the hand drill towards current round hole simultaneously, make the external diameter hole digger realize the trompil in rotatory advancing, the precision of trompil has been improved greatly, keep matching with the accuracy of current round hole, satisfy reaming demand.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a cross-sectional view taken along the direction a in fig. 2 according to the present invention.
Fig. 4 is a cross-sectional view taken along the direction B in fig. 2 according to the present invention.
Reference numerals shown in the drawings:
1. a fixing plate; 2. a through hole; 3. a slide bar; 4. fixing the rod; 5. connecting columns; 6. an outer diameter hole opener; 7. a strut; 8. an arc-shaped splint; 9. adjusting the screw rod; 10. a bump; 11. a chute; 12. a fixed seat; 13. a slide base; 14. opening hole teeth; 15. locking edges; 16. fixing the ear; 17. and (5) positioning the rod.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.
The utility model relates to a diameter-variable concentric hole digger, the main structure of which comprises a fixed plate 1, the fixed plate 1 is generally made of round wood or metal, a through hole 2 is arranged at the center of the fixed plate 1, namely the center of a circle, the through hole 2 penetrates through the fixed plate 1, a slide rod 3 is connected in the through hole 2 in a sliding way, the slide rod 3 passes through the through hole 2 to realize the sliding connection with the fixed plate 1, the bottom of the slide rod 3 is connected with a fixed rod 4 through a bearing in a rotating way, the bottom of the fixed rod 4 is provided with a connecting post 5, the connecting post 5 is connected with an output shaft of an existing hand drill or an electric drill and the like, the fixed rod 4 is driven to rotate by the equipment, an outer diameter hole digger 6 is detachably connected on the fixed rod 4, the diameter of the outer diameter hole digger, the bottom of the fixed plate 1 is connected with a supporting rod 7 along the radial symmetrical sliding connection, one end of the supporting rod 7 is welded or fixed with an arc-shaped clamping plate 8 through a bolt, the bottom of the fixed plate 1 is connected with an adjusting screw 9 through a bearing in a rotating mode, the adjusting screw 9 is in threaded connection with the supporting rod 7, the supporting rod 7 can be driven to move along the radial direction of the fixed plate 1 through rotating the adjusting screw 9, the adjusting screws 9 on two sides are synchronously adjusted during use, the fixed clamping plates 8 on two sides move towards two sides simultaneously until the fixed clamping plates are attached to the edge of an existing round hole to realize fixation, the fixed plate 1 and the existing round hole are fixed in a concentric mode, then a hand drill and other devices are started to drive the outer diameter hole opener 6 to rotate, meanwhile, a power device is pushed towards the existing round hole, the outer diameter opener 6 is driven by the sliding rod 3 to move towards the existing, the accuracy and efficiency of reaming are greatly improved.
Preferably, the edge array distribution of through-hole 2 has lug 10, lug 10 is preferred and fixed plate 1 integrated into one piece's setting, and the distribution of circular array is in through-hole 2, be equipped with spout 11 along length direction on the slide bar 3, lug 10 and spout 11 sliding connection, fixed plate 1 pass through lug 10 and spout 11 and realize sliding connection, and the existence of lug 10 has still avoided slide bar 3 for the rotation of through-hole 2 simultaneously, avoids fixed plate 1 to rotate under the drive of below power device, guarantees the fixed stability of reaming in-process fixed plate 1 and current round hole, has guaranteed reaming precision.
Preferably, the welding of the bottom symmetry of fixed plate 1 or bolted fixation have fixing base 12, adjusting screw 9 runs through behind the fixing base 12 with branch 7 threaded connection, adjusting screw 9's one end does not have the screw thread, and here rotates the connection through the bearing and realizes being connected with the rotation of fixed plate 1 on fixing base 12, the welding of the bottom symmetry of fixed plate 1 or bolted fixation have slide 13, branch 7 sliding connection is equipped with unsmooth slotted hole on slide 13 on preferred slide 13, be equipped with corresponding unsmooth texture on the lateral wall of branch 7, such sliding connection mode can make the slip of branch 7 more stable, has improved the stability of device.
Preferably, external diameter hole digger 6 is the open-topped round shell shape, be equipped with trompil tooth 14 on the 6 top lateral wall of external diameter hole digger, such structure can make the structure of external diameter hole digger 6 and furred ceiling contact better among the reaming process, and rocking of device when having avoided the reaming has improved the stability that the device used.
Preferably, arc splint 8's bottom is equipped with lockrand 15, lockrand 15's diameter is greater than arc splint 8, and lockrand 15 can contact with the bottom of furred ceiling when making arc splint 8 and the edge contact of current round hole, has further improved firmly fixed with current round hole, welding or the bolt fastening of symmetry have fixed ear 16 on the external diameter hole digger 6, be equipped with locating lever 17 in the fixed ear 16, locating lever 17 passes and pegs graft with the activity of dead lever 4 behind the fixed ear 16, and realization external diameter hole digger 6 that can be convenient is connected with dead lever 4, more conveniently changes not unidimensional external diameter hole digger 6 when the round hole trompil to the difference, has improved the convenience of use.
The working principle is as follows: the utility model is provided with a fixing plate 1, a supporting rod 7 is arranged in the radial direction of the fixing plate 1 in a sliding way, the tail end of the supporting rod 7 is provided with an arc-shaped clamping plate 8, when in use, the adjusting screw rod 9 is adjusted to drive the supporting rod 7 to move, thereby leading the arc-shaped clamping plate 8 to be close to the side wall of the existing round hole, realizing the fixation with the existing round hole, synchronously adjusting the adjusting screw rods 9 at the two sides when rotating, so as to ensure that the central axis of the slide bar 3 is coincident with the circle center of the existing round hole, ensure that the outer diameter hole digger 6 at the bottom is concentric with the existing round hole, then the output shaft of a hand drill and other tools is fixed with a connecting column 5 at the bottom, the rotation of the output shaft drives an outer diameter hole digger 6 to rotate, meanwhile, the hand drill is pushed towards the existing round hole, so that the outer diameter hole digger 6 realizes hole opening in the rotating forward process, the hole opening precision is greatly improved, the accurate matching with the existing round hole is kept, and the hole expanding requirement is met.
Claims (5)
1. The utility model provides a concentric hole digger of variable footpath, includes fixed plate (1), the center department of fixed plate (1) is equipped with through-hole (2), sliding connection has slide bar (3) in through-hole (2), the bottom of slide bar (3) is rotated and is connected with dead lever (4), the bottom of dead lever (4) is equipped with spliced pole (5), its characterized in that: the utility model discloses a fixing rod for the drilling machine, including dead lever (4), the bottom of fixed plate (1) is fixed with arc splint (8), the bottom of fixed plate (1) is connected with external diameter hole digger (6) along the sliding connection of radial symmetry, the one end of branch (7) is fixed with arc splint (8), the bottom of fixed plate (1) is rotated and is connected with adjusting screw (9), adjusting screw (9) and branch (7) threaded connection.
2. A variable diameter concentric hole opener according to claim 1, wherein: the edge array of through-hole (2) distributes and has lug (10), be equipped with spout (11) along length direction on slide bar (3), lug (10) and spout (11) sliding connection.
3. A variable diameter concentric hole opener according to claim 1, wherein: the bottom symmetry of fixed plate (1) is equipped with fixing base (12), adjusting screw (9) run through behind fixing base (12) and branch (7) threaded connection, the bottom symmetry of fixed plate (1) is equipped with slide (13), branch (7) sliding connection is on slide (13).
4. A variable diameter concentric hole opener according to claim 1, wherein: the outer diameter hole digger (6) is in a circular shell shape with an open top, and the top of the outer diameter hole digger (6) is provided with hole digging teeth (14).
5. A variable diameter concentric hole opener according to claim 1, wherein: the bottom of arc splint (8) is equipped with lockstitching a border (15), what the symmetry was equipped with on external diameter hole digger (6) fixes ear (16), be equipped with locating lever (17) in fixed ear (16), locating lever (17) are passed fixed ear (16) back and are pegged graft with dead lever (4) activity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021730075.2U CN213224424U (en) | 2020-08-18 | 2020-08-18 | Diameter-variable concentric hole opener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021730075.2U CN213224424U (en) | 2020-08-18 | 2020-08-18 | Diameter-variable concentric hole opener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213224424U true CN213224424U (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021730075.2U Active CN213224424U (en) | 2020-08-18 | 2020-08-18 | Diameter-variable concentric hole opener |
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| CN (1) | CN213224424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472961A (en) * | 2022-01-29 | 2022-05-13 | 王力安防科技股份有限公司 | Lock head hole reaming positioner and have reaming device of this locator |
-
2020
- 2020-08-18 CN CN202021730075.2U patent/CN213224424U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472961A (en) * | 2022-01-29 | 2022-05-13 | 王力安防科技股份有限公司 | Lock head hole reaming positioner and have reaming device of this locator |
| CN114472961B (en) * | 2022-01-29 | 2023-08-08 | 王力安防科技股份有限公司 | Tapered end hole expanding locator and hole expanding device with same |
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