CN209935919U - Accessory lever structure and hand-held tool with same - Google Patents
Accessory lever structure and hand-held tool with same Download PDFInfo
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- CN209935919U CN209935919U CN201822268051.9U CN201822268051U CN209935919U CN 209935919 U CN209935919 U CN 209935919U CN 201822268051 U CN201822268051 U CN 201822268051U CN 209935919 U CN209935919 U CN 209935919U
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- extension rod
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Abstract
The utility model provides an accessory rod structure and a handheld tool, wherein the accessory rod structure comprises an extension rod, the extension rod comprises a fastening part and an accommodating part, the fastening part is arranged at one end of the extension rod, and the accommodating part is arranged at the other end of the extension rod; the containing part has the connection structure with the stalk portion assorted of terminal tool, and the fastening portion can with the chuck of instrument or the installation department of instrument is connected, the extension length of extension rod is greater than the total length of terminal tool and tool chuck. The handheld tool with the accessory rod structure has the advantages of being few in parts, capable of extending into a narrow space to perform operation, capable of achieving multiple functions of extension, depth setting, guiding, dust collection and the like through connection of the extension rod and different parts of the machine body, low in cost, small in additional size and the like.
Description
Technical Field
The utility model relates to an annex pole structure to and a hand-held type instrument that has this annex pole structure.
Background
When a handheld tool is used for drilling and other operations on a workpiece, the situation that the position of an operator is too far away from a processing surface, or a processing object is positioned in a narrow area, and the length of a batch head is not enough to extend into the processing surface for operation often occurs; furthermore, the depth of the drilled hole is also known to be shallow and deep, there is a lack of consideration for the depth of the drilled hole, and the drilled hole is often skewed. At present, an independent extension device or an independent depth setting device is often installed on a handheld tool to carry out extension and depth setting operation, the extension device or the depth setting device usually exists independently, only in order to realize a certain specific effect, a handheld tool device integrating multiple functions is rarely generated, and in addition, a plurality of parts are often added on a machine body of the existing extension device or the depth setting device, so that the whole handheld tool becomes complicated, the appearance and the weight of the handheld tool are increased, and the handheld tool is heavy. Therefore, the problems that the existing extending and depth-fixing device has more parts, is difficult to install and adjust, has single function and the like need to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model provides an annex pole structure of simple structure.
The above purpose is realized by the following technical scheme:
the accessory rod structure comprises an extension rod, wherein the extension rod comprises a fastening part and an accommodating part, the fastening part is positioned at one end of the extension rod, and the accommodating part is positioned at the other end of the extension rod; the containing part is provided with a connecting structure matched with the handle part of the terminal tool, the fastening part can be connected with the chuck of the tool or the mounting part of the tool, and the extension length of the extension rod is greater than the total length of the terminal tool and the chuck of the tool.
In one embodiment, scales are arranged between the accommodating part and the fastening part of the extension rod, and the accessory rod structure further comprises a depth indication sleeve movably arranged on the extension rod and a second locking device capable of locking the depth indication sleeve relative to the extension rod.
The connecting structure of the accommodating part is provided with an inner hexagonal hole.
In one embodiment, the accessory bar structure further comprises a support for positioning and guiding, wherein the support comprises a base portion and a column portion, the base portion is provided with a first central through hole and an abutting surface on one side of the base, and the column portion is used for being connected with the hexagonal hole of the extension bar.
In one embodiment, the column portion of the support is at least partially configured as a hexagonal column, and the base portion of the support is connectable to the column portion at different angles.
In one embodiment, the accessory bar structure further comprises a dust catcher mated with the base portion, the dust catcher having a second central through hole corresponding to the first central through hole, the first and second central through holes having a diameter greater than a diameter of the end tool.
In one embodiment, the precipitator comprises an envelope arranged around the second central through-opening, which envelope forms, in form-fit with the base part, an enclosed space for dust collection.
In one embodiment, the extension rod is made of steel material or is manufactured through powder metallurgy.
The utility model provides an easy operation, collect multi-functional hand-held type instrument as an organic whole.
The above purpose is realized by the following technical scheme:
a hand-held tool comprising: the main body comprises a shell, a motor and a chuck, wherein the motor and the chuck are accommodated in the shell; the hand-held tool further comprises: the accessory rod structure comprises an extension rod, the extension rod comprises a fastening part and an accommodating part, the fastening part is positioned at one end of the extension rod, and the accommodating part is positioned at the other end of the extension rod; the fastening portion can be selectively connected with the chuck or the mounting portion, when the fastening portion is connected with the chuck, the accommodating portion is used for being connected with a terminal tool, and the terminal tool and the chuck are driven by the motor to rotate.
In one embodiment, the cross-section of the receiving portion of the extension rod is configured as a hexagonal socket, the extension rod has a longitudinally extending axis, and the extension rod axis coincides with the chuck axis and the terminal tool axis when the receiving portion is connected with the terminal tool.
In one embodiment, when the fastening portion of the extension rod is connected with the mounting portion, the extension rod and the mounting portion can slide axially, and the axis of the extension rod is parallel to the axis of the chuck.
In one embodiment, scales are marked between the accommodating part and the fastening part of the extension rod, and the handheld tool is provided with a first locking device capable of locking the extension rod relative to the shell.
In one embodiment, the extension rod is provided with a depth indicating sleeve which can move along the axial direction of the extension rod, and the handheld tool is provided with a second locking device used for locking the depth indicating sleeve relative to the extension rod.
In one embodiment, the accessory bar structure further comprises a support for positioning and guiding the hand-held tool, wherein the support comprises a base portion and a column portion, the base portion is provided with an abutting surface for abutting against a workpiece, and the column portion is used for being connected with the accommodating portion of the extension bar.
In one embodiment, the column portion of the support is provided as a hexagonal column, and the base portion of the support may be connected to the column portion at different angles.
In one embodiment, the base portion of the support is provided with a first central through hole, and the first central through hole centre line may coincide with the collet axis.
In one embodiment, the accessory bar structure further comprises a dust catcher coupled to the base portion for collecting dust generated during operation of the hand tool, the dust catcher having a second central through hole with a centerline coincident with the first central through hole, the first and second central through holes for receiving the end tool.
In one embodiment, the extension rod is made of steel material or made by powder metallurgy.
The utility model has the advantages that: the utility model discloses a multifunctional hand-held tool, structural design is simple ingenious, at hand-held tool host computer integrated into one piece installation department on one's body, uses annex pole structure, connects annex pole structure and hand-held tool different positions and connects, can extend the distance of clamping part preceding terminal surface and terminal tool preceding terminal surface, and the terminal tool of being convenient for stretches into narrow space and operates, has better approachability, also can regard as depthkeeping device to use, provides the reference for operator's drilling depth; simultaneously, this hand-held type instrument can also support the direction through annex pole structure for drilling is more accurate, avoids the appearance of the condition such as crooked of punching, adds the dust remover in addition for collect the dust that produces in the hand-held type instrument working process, especially to the drilling work of objects such as ceiling, roof, the dust falls into the people's eye easily, and this dust remover will effectively improve the possibility of operating personnel safe and healthy operation. The accessory rod structure is detachably connected with the machine body, the number of parts is small, the quality of the whole machine is not greatly increased while extension, depth setting, guiding and dust collection are achieved, and the installation and the disassembly are simple. Meanwhile, the mounting angle of the supporting piece can be adjusted, so that the use angle can be adjusted conveniently by an operator, and the comfort of the operator in use is improved.
Drawings
Fig. 1 is a schematic structural view of an electric drill with an extension function according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a first embodiment of the electric drill with a depth setting function;
fig. 3 is a schematic structural diagram of a first working mode of the electric drill with the depth setting function of the first embodiment;
fig. 4 is a schematic structural view of a second working mode of the electric drill with the depth setting function of the first embodiment;
fig. 5 is an exploded view of the first embodiment of the power drill with the accessory bar configuration;
figure 6 is a schematic view of a first embodiment of a first mode of operation of a power drill having a support function;
figure 7 is a schematic diagram of a second mode of operation of the first embodiment of the power drill having a support function;
fig. 8 is an exploded view of the first embodiment of the electric drill having a dust collecting function;
fig. 9 is a schematic structural view showing an operating state of the electric drill having a dust collecting function according to the first embodiment;
FIG. 10 is a schematic view of a second embodiment of a power drill with the accessory shaft configuration removed;
FIG. 11 is an enlarged view of a portion of FIG. 10 indicated by I;
fig. 12 is a schematic structural view showing an operating state of an electric drill having a dust collecting function according to a second embodiment;
FIG. 13 is an enlarged view of a portion of FIG. 12 identified by reference numeral II;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following embodiments are described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1, the utility model discloses the hand-held tool of the first embodiment is the electric drill, including main fuselage 100, main fuselage 100 includes casing 110, accept motor (not shown in the figure) and chuck 120 in casing 110, this hand-held tool is still including setting up in the installation department 130 of casing 110 and can dismantle the annex pole structure 200 of being connected with casing 110, installation department 130 and casing integrated into one piece, can not influence the position and the size of other mechanisms such as drive mechanism gear box isotructure in the hand-held tool, possess better intensity, the additional size is little and characteristics such as the cost is lower.
The accessory rod structure 200 comprises an extension rod 210, the extension rod 210 is made of steel material or made by powder metallurgy, the extension rod 210 is a cylindrical structure and has a longitudinally extending axis, the extension rod 210 comprises an accommodating part 211 and a fastening part 212, the accommodating part 211 is positioned at one end of the extension rod 210, the cross section of the accommodating part 211 is provided with an inner hexagonal hole or a square hole, the fastening part 212 is positioned at the other end of the extension rod 210, the fastening part 212 is connected with the chuck 120 in fig. 1, the accommodating part 211 is connected with the terminal tool bit 300a, at the moment, the extension rod 210, the chuck 120 and the terminal tool bit 300a are driven by a motor to rotate, the axis of the extension rod 210 coincides with the axis of the chuck 120 and the axis of the terminal tool bit 300a, and is used for extending the distance between the front end face of the chuck 120 and the front end face of the terminal tool bit 300a, so that the terminal, the handheld tool has better accessibility.
Referring to fig. 2 to 4, the fastening portion 212 of the accessory bar structure 200 may further be used to connect with the mounting portion 130 disposed on the housing 110, the extension bar 210 may be used as a depth setting bar, the extension bar 210 and the mounting portion 130 may axially slide, at this time, an axis of the extension bar 210 is parallel to an axis of the chuck 120, and scales are marked between the receiving portion 211 of the extension bar 210 and the fastening portion 212, so as to provide a drilling depth reference for the drill to perform a drilling operation. As shown in fig. 3, the depth indication sleeve 213 is disposed on the extension rod 210, the depth indication sleeve 213 is an elastic body with high friction, and can be tightly attached to the extension rod 210 without external force, so that axial slippage does not occur, and the depth indication sleeve 213 can move along the axial direction of the extension rod 210 under the external force, so as to adjust the preset drilling depth. In fig. 3, the depth indicating sleeve 213 can be moved to a position where the abutting edge of the mounting portion 130 facing the depth indicating sleeve 213 has a depth of L1, the depth indicating sleeve 213 with the preset position adjusted can be locked by a locking mechanism (not shown) with respect to the extension rod 210, and then drilling work can be performed on the surface of the workpiece W. In the drilling process shown in fig. 4, when the depth of the tool twist drill 300b entering the workpiece W reaches L2, the depth indicating sleeve 213 abuts against the abutting edge of the mounting portion 130, and due to the fact that the depth indicating sleeve 213 is locked relative to the position of the extension rod 210 and interfered by the depth indicating sleeve 213 and the mounting portion 130, the extension rod 210 abutting against the surface of the workpiece W cannot further move towards the rear of the machine body, so that the depth of the tool twist drill 300b is fixed, and the depth L2 is consistent with the preset depth L1.
In another alternative embodiment, the front end surface of the receiving portion 211 of the extension rod 210 may be adjusted to be at a distance L2 from the rear of the front end surface of the twist drill 300b, and when the front end surface of the receiving portion 211 of the extension rod 210 comes into contact with the surface of the workpiece W during drilling, the depth indicating sleeve 213 contacts the abutting edge of the mounting portion 130, that is, the depth indicating sleeve 213 reaches the state of fig. 4 to finish drilling. The two modes can indicate the drilling depth of the electric drill, and provide consideration for the drilling depth of an operator.
Further, referring to fig. 5-7, the accessory bar structure 200 further includes a support member 220 for guiding the hand-held tool, the support member 220 includes a base portion 221 and a column portion 222, the base portion 221 is provided with an abutting surface 224 for abutting against the workpiece, the column portion 222 is configured as a hexagonal column or a square column, one end of the column portion 222 is configured for connecting with the receiving portion 211 of the extension bar 210, the other end of the column portion 222 is configured for connecting with the base portion 221 of the support member 220, the column portion 222 and the base portion 221 can be connected at different angles, if the column portion 222 is configured as a hexagonal column, the base portion 221 has at least six different installation positions, as shown in fig. 6 and 7, an operator can adjust the position of the base portion 221 according to personal habits and actual working conditions, the support and guide structure is simple, and no excessive parts are added, the operation of the operating personnel can be facilitated, and the comfort of the operating personnel during use is improved.
As shown in fig. 6, the base portion 221 of the support member 220 is provided with a first central through-hole 223, the centerline of the first central through-hole 223 being coincident with the axis of the collet 120 for receiving the end tool twist drill 300 b.
Further, referring to fig. 5, 8 and 9, the accessory bar structure 200 further includes a dust catcher 230 coupled to the base portion 221 for collecting dust generated during operation of the hand tool, especially during drilling work of objects such as ceilings, roofs, etc., where dust is liable to fall into the eyes, which will effectively collect dust generated during the process, so that the operator can work in a safer and healthier manner. The dust catcher 230 is provided with a second center through hole 231 having a center line coinciding with the center line of the first center through hole 223, the second center through hole 231 can accommodate the end tool twist drill 300b, and the diameter of the second center through hole 231 is only slightly larger than the diameter of the end tool in order to prevent dust from leaking outside. The dust separator 230 comprises a mat surface arranged around the second central through hole, said mat surface forming a shape fit with the base part for a dust collecting space. Specifically, the inner contact end surface of the dust catcher 230 may be closely attached to the outer end surface of the base portion 221 of the support member 220, and the joining surface of the dust catcher 230 and the base portion 221 has the same shape and can closely fit with one end surface of the base portion 221.
Referring to fig. 10 to 13, in the handheld tool according to the second embodiment of the present invention, a first locking device 214 capable of locking the extension rod 210a relative to the housing 110a is disposed in the mounting portion 130a, the first locking device 214 is a rubber member, so that the fastening portion 212a of the extension rod 210a can be kept stationary without external force applied to the mounting portion 130a, and can slide under the external force, and the first locking device 214 can be an independent part and is pressed into a groove formed in the mounting portion by the external force; the extension rod 210a is of a hexagonal cylindrical structure, so that the scale can be conveniently marked, the accommodating part 211a can be integrally formed with the extension rod, and can also be independently installed on the extension rod 210a through a magnet, an inner hexagonal hole and the like, as shown in fig. 12, the second locking device 215 can be screwed towards the extension rod 210a by using a thumbscrew to lock the depth indication sleeve 213a relative to the extension rod 210a, and the second locking device 215 can lock the depth indication sleeve 213a relative to the extension rod 210a, so that not only is the depth indication function realized in the depth setting function, but also the depth stop function of preventing the terminal tool twist drill 300b from continuously drilling when reaching the specified depth is realized; the left hand position of the attachment bar structure in the operator's working direction does not hinder the adjustment of the reversible button 240 and therefore does not affect the drilling comfort for 90% of right-handed workers.
The utility model discloses well hand-held type instrument includes but not limited to the electric drill, still includes handheld type instruments such as hand-held type electric hammer, screwdriver, hand-held type electric saw.
Claims (12)
1. An accessory bar structure, characterized by: the accessory rod structure comprises an extension rod, the extension rod comprises a fastening part and an accommodating part, the fastening part is positioned at one end of the extension rod, and the accommodating part is positioned at the other end of the extension rod; the containing part has the stalk portion assorted connection structure with terminal tool, the fastening portion can with the chuck of instrument or the installation department of instrument is connected, the extension length of extension rod is greater than the total length of terminal tool and tool chuck.
2. The accessory bar structure of claim 1, wherein: be provided with the scale between the portion of acceping of extension rod and the fastening portion, annex rod structure further including movably set up in the degree of depth of extension rod instructs the cover to and can instruct the second locking device that the cover carries out the locking relative extension rod with the degree of depth.
3. The accessory bar structure of claim 1, wherein: the connecting structure of the accommodating part is provided with an inner hexagonal hole.
4. The accessory bar structure of claim 3, wherein: the accessory bar structure further comprises a supporting piece used for positioning and guiding, the supporting piece comprises a base portion and a column portion, the base portion is provided with a first central through hole and an abutting surface located on one side of the base, and the column portion is used for being connected with the hexagonal hole of the extension bar.
5. The accessory bar structure of claim 4, wherein: the column part of the support is at least partially arranged as a hexagonal column, and the base part of the support can be connected with the column part at different angles.
6. The accessory bar structure of claim 5, wherein: the accessory bar structure further comprises a dust remover matched and connected with the base portion, the dust remover is provided with a second central through hole corresponding to the first central through hole, and the diameters of the first central through hole and the second central through hole are larger than that of the terminal tool.
7. The accessory bar structure of claim 6, wherein: the dust collector comprises a cover surface arranged around the second central through hole, and the cover surface and the base part are matched in shape to form a dust collecting space.
8. The accessory bar structure of claim 1, wherein: the extension rod is made of steel materials or is manufactured through powder metallurgy.
9. A hand-held tool characterized by: comprising an accessory bar structure as claimed in any one of claims 1 to 8;
the main body comprises a shell, a motor accommodated in the shell and a chuck positioned at one end of the shell;
when the fastening portion with when the chuck is locked, the chuck can drive the extension rod to be rotated by the motor drive together.
10. The hand-held tool of claim 9, wherein: the cross section of the containing part is provided with a hexagon socket, the extension rod is provided with a longitudinally extending axis, and when the containing part is connected with the terminal tool, the axis of the extension rod is superposed with the axis of the chuck and the axis of the terminal tool.
11. The hand-held tool of claim 9, wherein: when the fastening portion of extension rod with when the installation department is connected, the extension rod can produce axial with the installation department and slide, and the extension rod axis with the chuck axis is parallel.
12. The hand-held tool of claim 9, wherein: the hand-held tool has a first locking device capable of locking the extension rod relative to the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822268051.9U CN209935919U (en) | 2018-12-29 | 2018-12-29 | Accessory lever structure and hand-held tool with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822268051.9U CN209935919U (en) | 2018-12-29 | 2018-12-29 | Accessory lever structure and hand-held tool with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209935919U true CN209935919U (en) | 2020-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822268051.9U Active CN209935919U (en) | 2018-12-29 | 2018-12-29 | Accessory lever structure and hand-held tool with same |
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| Country | Link |
|---|---|
| CN (1) | CN209935919U (en) |
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2018
- 2018-12-29 CN CN201822268051.9U patent/CN209935919U/en active Active
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