CN110228314B - Full-automatic line drawing ruler - Google Patents

Full-automatic line drawing ruler Download PDF

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Publication number
CN110228314B
CN110228314B CN201910675870.1A CN201910675870A CN110228314B CN 110228314 B CN110228314 B CN 110228314B CN 201910675870 A CN201910675870 A CN 201910675870A CN 110228314 B CN110228314 B CN 110228314B
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CN
China
Prior art keywords
guide rail
gear
clamp
rail unit
full
Prior art date
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Active
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CN201910675870.1A
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Chinese (zh)
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CN110228314A (en
Inventor
李钦生
樊卫强
李一豪
李锡程
王毛毛
赵浩宇
王凤阳
江畅
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Anhui Technical College of Mechanical and Electrical Engineering
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Anhui Technical College of Mechanical and Electrical Engineering
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Application filed by Anhui Technical College of Mechanical and Electrical Engineering filed Critical Anhui Technical College of Mechanical and Electrical Engineering
Priority to CN201910675870.1A priority Critical patent/CN110228314B/en
Publication of CN110228314A publication Critical patent/CN110228314A/en
Application granted granted Critical
Publication of CN110228314B publication Critical patent/CN110228314B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/24Devices for generating stepwise movements of drawing equipment, e.g. for hatching

Abstract

The invention discloses a full-automatic line drawing ruler, which comprises: the device comprises a transverse guide rail and vertical guide rails arranged at two ends of the transverse guide rail; the horizontal guide rail can be vertically movably arranged on the vertical guide rail, the clamp is arranged on the upper side or the lower side of the horizontal guide rail, the painting brush is installed on the clamp, and the clamp can slide along the length direction of the horizontal guide rail. The full-automatic line drawing ruler can be used for drawing lines on walls and surfaces, can overcome the defects of manual line drawing and can meet the line drawing requirements of various positions.

Description

Full-automatic line drawing ruler
Technical Field
The invention relates to an auxiliary line drawing tool, in particular to a full-automatic line drawing ruler.
Background
At present, the traditional straight line setting-out mode is to use the scale as the supplementary setting-out, and when the length of required setting-out was longer (for example at the wall setting-out straight line), it is not suitable to use this kind of mode setting-out, and not only intensity of labour is high, and the straight line of drawing is not accurate moreover. When the straight line is oblique line or the position of the drawn line is on the top of the wall, the drawing is not easy.
Disclosure of Invention
The invention aims to provide a full-automatic line drawing ruler, which can overcome the influence of a line drawing environment, can be used for drawing lines on wall surfaces and plate surfaces, can overcome the defect of manual line drawing, can meet line drawing requirements of various positions, and reduces the labor intensity of line drawing.
In order to achieve the above object, the present invention provides a full-automatic line drawing ruler, comprising: the device comprises a transverse guide rail and vertical guide rails arranged at two ends of the transverse guide rail; the horizontal guide rail is arranged on the vertical guide rail in a vertically movable manner, a clamp is arranged on the upper side or the lower side of the horizontal guide rail, a painting brush is mounted on the clamp, and the clamp can slide along the length direction of the horizontal guide rail; the vertical guide rail is formed by splicing a plurality of rail units in sequence, one end of each rail unit is provided with a hasp, and the other end of each rail unit is provided with a hasp slot.
Preferably, the transverse guide rail is composed of a plurality of guide rail units, and two adjacent guide rail units are connected through a detachable hinge; a plurality of the homonymy of guide rail unit all is provided with provides the gliding spout of anchor clamps, and is a plurality of the spout is equal accordant connection, be provided with on the anchor clamps and correspond to the slider of spout.
Preferably, each guide rail unit is provided with a strip-shaped hole which penetrates through the guide rail unit from front to back, and at least one limiting block is arranged in each strip-shaped hole; and a driving mechanism is arranged on one of the guide rail units, a guide rod mechanism is arranged on the driving mechanism, the guide rod mechanism penetrates through each limiting block, and two ends of the guide rod mechanism are connected with transmission mechanisms connected with the rail units.
Preferably, the drive mechanism comprises: the guide bar mechanism is arranged on the guide rail unit, an output shaft of the motor set is parallel to the axis of the guide bar mechanism, a first gear is sleeved on the output shaft, and a second gear meshed with the first gear is sleeved on the guide bar mechanism.
Preferably, the transmission mechanism comprises: the third gear, the fourth gear, the fifth gear, the sixth gear and a supporting plate fixedly connected to the bottom side of the guide rail unit are arranged on the guide rail unit, an end cover is arranged on the supporting plate and can be slidably arranged on the guide rail unit, and a rack is arranged on the guide rail unit; the fifth gear and the sixth gear are arranged in the end cover in parallel and meshed with the rack, the fourth gear is located between the fifth gear and the sixth gear and arranged at the end part of the guide rail unit, the fourth gear is meshed with the fifth gear and the sixth gear simultaneously, and the third gear is sleeved at the end part of the guide rod mechanism and meshed with the fourth gear.
Preferably, the guide rod mechanism comprises a plurality of rod bodies, the end parts of two adjacent rod bodies facing each other are both provided with square rods, and a connecting piece is arranged between the two adjacent rod bodies; wherein, the connecting piece includes: the sliding rail device comprises a sleeve, wherein a bearing sleeve is sleeved on the sleeve, a sliding block is arranged on the side surface of the bearing sleeve, the sliding block extends out of the side surface of each guide rail unit, and a sliding groove which is communicated with each other and provides sliding for the sliding block is formed between every two adjacent guide rail units; and jacks matched with the square rods are formed at two ends of the sleeve, and concave parts are formed at the outer sides of the sliding blocks.
Preferably, the two rail units are hinged with a paper pressing frame through torsion springs on the sides facing each other.
Preferably, the clamp comprises a clamp body, the painting brush is detachably clamped in the clamp body, a support is arranged on one side of the clamp body, and the sliding block is fixedly connected to one side of the support, which is back to the clamp body; a through groove is formed in one side, facing the sliding block, of the support, a driving motor is arranged in the through groove, at least one friction wheel is arranged on a shaft body of the driving motor, and the friction wheel can be in contact with the guide rail unit and can roll on the guide rail unit; and the side surface of the sliding block facing one side of the bottom surface of the sliding chute is provided with a positive contact and a negative contact which are electrically connected with a positive electrode and a negative electrode of the driving motor, and the bottom surface of the sliding chute is provided with a first conducting strip corresponding to the positive contact and a second conducting strip corresponding to the negative contact.
Preferably, the clamp body is provided with a mounting hole for mounting the painting brush, and a compression screw capable of extending into the mounting hole is arranged on the side face of the clamp body so as to clamp the painting brush.
Preferably, be provided with the mounting hole that is used for installing the painting brush on the anchor clamps body, be provided with the screwed pipe in the mounting hole, the screwed pipe with connect through the elastic component between the mounting hole, be provided with the internal thread in the screwed pipe, be provided with on the painting brush with internal thread assorted external screw thread.
According to the technical scheme, the transverse guide rail is vertically movably arranged on the vertical guide rail, a clamp is arranged on the upper side or the lower side of the transverse guide rail, a painting brush is mounted on the clamp, and the clamp can slide along the length direction of the transverse guide rail; the vertical guide rail is formed by splicing a plurality of rail units in sequence, one end of each rail unit is provided with a hasp, and the other end of each rail unit is provided with a hasp slot. The movable range of the brush in the vertical direction can be increased through the plurality of track units, and different numbers of track units are used according to actual needs. During the use, earlier fix a position vertical guide rail, fixed vertical guide rail can move in horizontal direction and vertical direction through modes such as nail or powerful sticky tape, the painting brush under the drive of anchor clamps, and then with light carry out the setting-out on the setting-out face, this device mainly used draws the straight line, but not only is limited to the straight line, can draw other kinds of lines through the movement track of control painting brush through PLC control system when necessary.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is an overall view of a preferred embodiment of a fully automatic line marking tape in operation;
FIG. 2 is a schematic view of a preferred embodiment of a transmission;
FIG. 3 is an overall view of a preferred embodiment of the clamp portion;
FIG. 4 is a schematic view of a preferred embodiment of a drive mechanism and transmission mechanism;
FIG. 5 is an internal schematic view of a preferred embodiment of a connector portion;
FIG. 6 is an external schematic view of a preferred embodiment of a connector portion;
fig. 7 is an overall cross-sectional view of a preferred embodiment of a clip body mounting brush.
Description of the reference numerals
1 platen 2 guide Unit
3 clamp 4 track unit
5 end cover 6 rack
7 chute 8 third gear
9 fourth gear 10 fifth gear
11 sixth gear 12 hasp
13 holder body 14 painting brush
15 bracket 16 driving motor
17 slide block 18 friction wheel
19 compression screw 20 rod
21 motor unit 22 first gear
23 stop block 24 second gear
25 sliding block of supporting plate 26
27 sleeve 28 bearing sleeve
29 square bar 30 sliding groove
31 Detachable hinge
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, directional words included in terms such as "upper, lower, left, right, front, rear, inner, and outer" and the like merely represent the directions of the terms in a normal use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.
Referring to fig. 1-7, the full-automatic line drawing ruler comprises: the device comprises a transverse guide rail and vertical guide rails arranged at two ends of the transverse guide rail; the horizontal guide rail is arranged on the vertical guide rail in a vertically movable manner, a clamp 3 is arranged on the upper side or the lower side of the horizontal guide rail, a painting brush 14 is mounted on the clamp 3, and the clamp 3 can slide along the length direction of the horizontal guide rail; the vertical guide rail is formed by splicing a plurality of rail units 4 in sequence, one end of each rail unit 4 is provided with a hasp 12, and the other end of each rail unit 4 is provided with a hasp 12 slot.
Through the implementation of the technical scheme, the transverse guide rail is vertically movably arranged on the vertical guide rail, a clamp 3 is arranged on the upper side or the lower side of the transverse guide rail, a painting brush 14 is arranged on the clamp 3, and the clamp 3 can slide along the length direction of the transverse guide rail; the vertical guide rail is formed by splicing a plurality of rail units 4 in sequence, one end of each rail unit 4 is provided with a hasp 12, and the other end of each rail unit 4 is provided with a hasp 12 slot. The movable range of brush 14 in the vertical direction can be increased by a plurality of rail units 4, and a different number of rail units 4 are used according to actual needs. During the use, earlier fix a position vertical guide rail, fixed vertical guide rail can move on horizontal direction and vertical direction through modes such as nail or powerful sticky tape, painting brush 14 under anchor clamps 3's drive, and then with light carry out the setting-out on the setting-out face, this device mainly used draws the straight line, but not only is limited to the straight line, can draw other kinds of lines through the movement track of control painting brush 14 through PLC control system when necessary.
In this embodiment, in order to further expand the paintable range of the lateral direction of brush 14, it is preferable that the lateral guide is composed of a plurality of guide units 2, and two adjacent guide units 2 are connected by a detachable hinge 31; a plurality of the guide rail unit 2's homonymy all is provided with provides the gliding spout 7 of anchor clamps 3, and is a plurality of spout 7 all matches and connects, be provided with on the anchor clamps 3 corresponding to the slider 17 of spout 7.
In this embodiment, in order to further provide a specific way that the transverse guide rails can move on the track unit 4, it is preferable that each guide rail unit 2 is provided with a strip-shaped hole penetrating through the front and back, and at least one limit block 23 is arranged in the strip-shaped hole; and a driving mechanism is arranged on one of the guide rail units 2, a guide rod mechanism is arranged on the driving mechanism, the guide rod mechanism penetrates through each limiting block 23, and two ends of the guide rod mechanism are connected with transmission mechanisms connected with the track units 4. Specifically, the method comprises the following steps: the driving mechanism drives the guide rod mechanism to rotate, the guide rod mechanism is fixed under the action of the limiting block 23, the strip-shaped holes are designed to be visual and convenient to overhaul, and the transmission mechanism is used for being connected with the track unit 4.
In this embodiment, in order to further provide a power output of a drive mechanism, preferably, the drive mechanism includes: the guide rail mechanism comprises a motor set 21 arranged on the guide rail unit 2, an output shaft of the motor set 21 is parallel to the axis of the guide rod mechanism, a first gear 22 is sleeved on the output shaft, and a second gear 24 meshed with the first gear 22 is sleeved on the guide rod mechanism.
In this embodiment, in order to further ensure that the transmission mechanism can transmit the driving force from the driving mechanism so that the guide bar mechanism can travel vertically, preferably, the transmission mechanism includes: the guide rail unit comprises a third gear 8, a fourth gear 9, a fifth gear 10, a sixth gear 11 and a supporting plate 25 fixedly connected to the bottom side of the guide rail unit 2, wherein an end cover 5 is mounted on the supporting plate 25, the end cover 5 is slidably arranged on the rail unit 4, and a rack 6 is arranged on the rail unit 4; the fifth gear 10 and the sixth gear 11 are arranged in the end cover 5 in parallel and are meshed with the rack 6, the fourth gear 9 is located between the fifth gear 10 and the sixth gear 11 and is arranged at the end of the guide rail unit 2, the fourth gear 9 is meshed with the fifth gear 10 and the sixth gear 11 simultaneously, and the third gear 8 is sleeved at the end of the guide rod mechanism and is meshed with the fourth gear 9. Specifically, the guide rod mechanism rotates to drive the third gear 8 to rotate, so that the fourth gear 9 rotates, and the fourth gear 9 rotates to drive the fifth gear 10 and the sixth gear 11 to synchronously rotate. The transmission mechanisms at the two ends of the guide rod mechanism have the same structure and can keep synchronous movement.
In this embodiment, in order to further facilitate the detachability of the guide bar mechanism to accommodate the detachment of the plurality of rail units 2, it is preferable that the guide bar mechanism includes a plurality of bars 20, ends of two adjacent bars 20 facing each other are both provided as square bars 29, and a connecting member is provided between two adjacent bars 20; wherein, the connecting piece includes: the sleeve 27 is sleeved with a bearing sleeve 28, a sliding block 26 is arranged on the side surface of the bearing sleeve 28, the sliding block 26 extends out of the side surface of the guide rail unit 2, and a sliding groove 30 which is communicated with each other and provides sliding for the sliding block 26 is formed between every two adjacent guide rail units 2; the sleeve 27 has insertion holes formed at both ends thereof to be engaged with the square bars 29, and a concave portion is formed on the outer side of the slide block 26. Considering that the plurality of rail units 2 are hinged, in order to prevent the ends of the rod 20 from affecting the folding of the rail units 2 when the rail units are folded, the sliding block 26 slides in the sliding groove 30, and the insertion holes at the two ends of the sleeve 27 are respectively inserted into the two adjacent square rods 29 by sliding to realize the connection of the rod 20. When disassembly is required, the sliding block 26 is pushed to one side of the sliding groove 30, so that one of the insertion holes is separated from the square rod 29. For storage convenience, the mounting surfaces of two adjacent detachable hinges 31 should be kept different.
In this embodiment, in order to facilitate drawing lines on a large paper that is not suitable for fixing, it is preferable that the two rail units 4 are also hinged to the platen frame 1 through torsion springs on the sides facing each other.
In this embodiment, in order to further provide an automatic sliding manner of the clip 3 on the track unit 4, preferably, the clip 3 includes a clip body 13, the painting brush 14 is detachably clamped in the clip body 13, a bracket 15 is disposed on one side of the clip body 13, and the slider 17 is fixedly connected to one side of the bracket 15 facing away from the clip body 13; a through groove is formed in one side, facing the sliding block 17, of the support 15, a driving motor 16 is arranged in the through groove, at least one friction wheel 18 is arranged on a shaft body of the driving motor 16, and the friction wheel 18 can be in contact with the guide rail unit 2 and can roll on the guide rail unit 2; the side surface of the sliding block 17 facing the bottom surface of the sliding chute 7 is provided with a positive contact and a negative contact which are electrically connected with the positive electrode and the negative electrode of the driving motor 16, and the bottom surface of the sliding chute 7 is provided with a first conducting strip corresponding to the positive contact and a second conducting strip corresponding to the negative contact. Specifically, the method comprises the following steps: the friction wheel 18 is driven to rotate by the driving motor 16, and the friction wheel 18 rolls on the guide rail unit 2 under the action of friction force, so that the whole clamp 3 is completed. The drive motor 16 is electrically conductive via the positive and negative contacts and the corresponding first and second conductive strips, with a touch-and-close connection being formed between the contacts and the conductive strips. The first conductive strip and the second conductive strip are electrically connected to an external power supply.
In this embodiment, in order to further provide a way to fix brush 14, it is preferable that a mounting hole for mounting brush 14 is provided on clamp body 13, and a side surface of clamp body 13 is provided with a compression screw 19 capable of protruding into the mounting hole to clamp brush 14.
In this embodiment, because the tip of in-process painting brush 14 at longer setting-out has the loss to some extent, does not influence normal setting-out for this kind of loss, preferably, be provided with the mounting hole that is used for installing painting brush 14 on the anchor clamps body 13, be provided with the screwed pipe in the mounting hole, the screwed pipe with connect through the elastic component between the mounting hole, be provided with the internal thread in the screwed pipe, be provided with on the painting brush 14 with internal thread assorted external screw thread. A squeezing spring force between brush 14 and the drawing surface may be provided by the spring members, which spring force decreases as the end of brush 14 is worn, but the end of brush 14 may be pressed against the drawing surface at all times. The elastic member may be a spring or a spring sheet as long as it can provide a pressed elastic mechanism between brush 14 and the drawing surface. The distance between the painting brush 14 and the drawing surface can be adjusted according to actual conditions through the external threads and the internal threads.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims (7)

1. The utility model provides a full-automatic setting-out chi which characterized in that, full-automatic setting-out chi includes: the device comprises a transverse guide rail and vertical guide rails arranged at two ends of the transverse guide rail; wherein the content of the first and second substances,
the transverse guide rail is arranged on the vertical guide rail in a vertically movable manner, a clamp (3) is arranged on the upper side or the lower side of the transverse guide rail, a painting pen (14) is mounted on the clamp (3), and the clamp (3) can slide along the length direction of the transverse guide rail;
the vertical guide rail is formed by sequentially splicing a plurality of rail units (4), one end of each rail unit (4) is provided with a hasp (12), and the other end of each rail unit is provided with a hasp (12) slot;
the transverse guide rail consists of a plurality of guide rail units (2), and two adjacent guide rail units (2) are connected through a detachable hinge (31);
the same side of each guide rail unit (2) is provided with a sliding groove (7) for the fixture (3) to slide, the sliding grooves (7) are connected in a matching manner, and the fixture (3) is provided with a sliding block (17) corresponding to the sliding groove (7);
each guide rail unit (2) is provided with a strip-shaped hole which penetrates through the front and the back, and at least one limiting block (23) is arranged in each strip-shaped hole;
a driving mechanism is arranged on one of the guide rail units (2), a guide rod mechanism is arranged on the driving mechanism, the guide rod mechanism penetrates through each limiting block (23), and two ends of the guide rod mechanism are connected with a transmission mechanism connected with the track unit (4);
the guide rod mechanism comprises a plurality of rod bodies (20), the end parts of two adjacent rod bodies (20) facing each other are both provided with square rods (29), and a connecting piece is arranged between the two adjacent rod bodies (20); wherein the content of the first and second substances,
the connector includes: the guide rail device comprises a sleeve (27), wherein a bearing sleeve (28) is sleeved on the sleeve (27), a sliding block (26) is arranged on the side surface of the bearing sleeve (28), the sliding block (26) extends out of the side surface of the guide rail unit (2), and a sliding groove (30) which is communicated with each other and provides sliding of the sliding block (26) is formed between every two adjacent guide rail units (2);
the two ends of the sleeve (27) are provided with insertion holes matched with the square rods (29), and the outer side of the sliding block (26) is provided with a concave part.
2. The fully automatic line marking tape of claim 1, wherein the drive mechanism comprises: the guide rail mechanism is characterized by comprising a motor set (21) arranged on the guide rail unit (2), an output shaft of the motor set (21) is parallel to the axis of the guide rod mechanism, a first gear (22) is sleeved on the output shaft, and a second gear (24) meshed with the first gear (22) is sleeved on the guide rod mechanism.
3. The full-automatic line marking ruler of claim 1, wherein the transmission mechanism comprises: the guide rail unit comprises a third gear (8), a fourth gear (9), a fifth gear (10), a sixth gear (11) and a supporting plate (25) fixedly connected to the bottom side of the guide rail unit (2), wherein an end cover (5) is mounted on the supporting plate (25), the end cover (5) can be slidably arranged on the rail unit (4), and a rack (6) is arranged on the rail unit (4);
the fifth gear (10) and the sixth gear (11) are arranged in the end cover (5) in parallel and meshed with the rack (6), the fourth gear (9) is located between the fifth gear (10) and the sixth gear (11) and arranged at the end of the guide rail unit (2), the fourth gear (9) is meshed with the fifth gear (10) and the sixth gear (11) simultaneously, and the third gear (8) is sleeved at the end of the guide rod mechanism and meshed with the fourth gear (9).
4. The full-automatic line marking ruler according to claim 1, characterized in that the sides of the two track units (4) facing each other are also hinged with a paper pressing frame (1) by a torsion spring.
5. The full-automatic line drawing ruler according to claim 1, wherein the clamp (3) comprises a clamp body (13), the drawing pen (14) is detachably clamped in the clamp body (13), a support (15) is arranged on one side of the clamp body (13), and the sliding block (17) is fixedly connected to one side, opposite to the clamp body (13), of the support (15);
a through groove is formed in one side, facing the sliding block (17), of the support (15), a driving motor (16) is arranged in the through groove, at least one friction wheel (18) is arranged on a shaft body of the driving motor (16), and the friction wheel (18) can be in contact with the guide rail unit (2) and is positioned on the guide rail unit (2) to roll;
the side surface of the sliding block (17) facing one side of the bottom surface of the sliding groove (7) is provided with a positive contact and a negative contact which are electrically connected with a positive electrode and a negative electrode of the driving motor (16), and the bottom surface of the sliding groove (7) is provided with a first conducting strip corresponding to the positive contact and a second conducting strip corresponding to the negative contact.
6. The full-automatic line drawing ruler according to claim 5, wherein a mounting hole for mounting the painting brush (14) is formed in the clamp body (13), and a compression screw (19) capable of extending into the mounting hole is arranged on the side face of the clamp body (13) so as to clamp the painting brush (14).
7. The full-automatic line drawing ruler according to claim 5, wherein a mounting hole for mounting a painting brush (14) is formed in the clamp body (13), a threaded pipe is arranged in the mounting hole, the threaded pipe and the mounting hole are connected through an elastic piece, an internal thread is arranged in the threaded pipe, and an external thread matched with the internal thread is arranged on the painting brush (14).
CN201910675870.1A 2019-07-25 2019-07-25 Full-automatic line drawing ruler Active CN110228314B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910675870.1A CN110228314B (en) 2019-07-25 2019-07-25 Full-automatic line drawing ruler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910675870.1A CN110228314B (en) 2019-07-25 2019-07-25 Full-automatic line drawing ruler

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Publication Number Publication Date
CN110228314A CN110228314A (en) 2019-09-13
CN110228314B true CN110228314B (en) 2021-06-01

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