CN211390755U

CN211390755U - English scriber

Info

Publication number: CN211390755U
Application number: CN202020120264.1U
Authority: CN
Inventors: 陈君瑞; 李莎
Original assignee: Zhengzhou University of Science and Technology
Current assignee: Zhengzhou University of Science and Technology
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-09-01
Anticipated expiration: 2030-01-19

Abstract

The utility model relates to an English line marker, which effectively solves the problems that the line is inconvenient to draw in the prior English, the distance between the prior line markers is fixed and the line markers are easy to slide when in use; the technical scheme includes that the chalk box comprises a vertical rail, wherein the vertical rail is connected with a sliding base in an up-and-down sliding manner, one side of the sliding base is rotatably connected with a four-stage screw, four transverse rails are sleeved on the four-stage screw in an external thread manner, a chalk base is connected to each transverse rail in a sliding manner, and the four chalk bases are connected through a vertical connecting rod; the four-stage screw comprises four screws which are coaxially and fixedly connected, the pitches of the four screws are sequentially increased from top to bottom, and four transverse rails are respectively sleeved outside the four screws; the utility model discloses the structure is succinct, and the operation of being convenient for, the assistant user who can be effectively convenient is rule on the blackboard, and the practicality is strong.

Description

English scriber

Technical Field

The utility model relates to an english teaching aid technical field specifically is an english scriber.

Background

In English teaching, English letter writing is the basis that students learn good English, and when a teacher gives lessons in a classroom, four equidistant straight lines need to be drawn by a pen and a ruler respectively before writing, so that the length of each straight line is limited, and the four lines are difficult to keep equidistant.

The existing scriber is mostly a ruler with a fixed interval, the interval can not be adjusted according to requirements, the existing scriber is not easy to fix, and the existing scriber is easy to slide when used for drawing lines and inconvenient to use.

Therefore, the utility model provides an english scriber is called and is solved this problem.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides an english scriber, the effectual present english setting-out of having solved is inconvenient, and current scriber interval is fixed, easy gliding problem during the use.

The vertical rail of the utility model is provided with a sliding base which is connected with the vertical rail in an up-and-down sliding way, one side of the sliding base is rotationally connected with a four-stage screw, the four-stage screw is externally threaded with four transverse rails, each transverse rail is connected with a chalk base in a sliding way, and the four chalk bases are connected with each other through a vertical connecting rod;

the four-stage screw comprises four screws which are coaxially and fixedly connected, the screw pitches of the four screws are sequentially increased from top to bottom, and the four transverse rails are respectively sleeved outside the four screws.

Preferably, the four-stage screw is coaxially and fixedly connected with a driven bevel gear, and a driving bevel gear rotationally connected to the sliding base is meshed beside the driven bevel gear.

Preferably, the chalk base is provided with a through hole, a cylindrical chalk clamp is detachably connected in the through hole, the chalk clamp and the through hole are in interference fit, and a clamping seam is formed in one side of the chalk clamp.

Preferably, the screw rod on the sliding base is engaged with a compression bolt, and one end of the compression bolt can be in contact connection with the vertical rail.

Preferably, one end of the compression bolt in contact connection with the vertical rail is fixedly connected with a rubber pad.

Preferably, the sliding base is rotatably connected with a supporting roller.

Preferably, the sliding base is provided with scales.

The utility model aims at the inconvenience of line drawing of the existing English, the fixed space of the existing scriber and the easy sliding problem during the use, and realizes the fixation of the device during line drawing by matching with the compression bolt through the vertical rail which can be hung on the blackboard; the adjustment of the spacing between the drawing lines is realized by matching the multistage screw rods with the plurality of transverse rails; set up chalk base and chalk card for the chalk can be on the cross rail synchronous horizontal slip, thereby draw three check of english four-wire, the utility model discloses the structure is succinct, and the operation of being convenient for, the assistant user who can be effectively convenient is rule on blackboard, and the practicality is strong.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a rear view of the present invention.

Fig. 4 is a partial perspective view of the present invention.

Fig. 5 is a perspective view of the chalk clip of the present invention.

Fig. 6 is a schematic partial sectional view of the present invention.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 6. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.

In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

The first embodiment of the present invention is an english line marker, which is characterized in that, referring to fig. 1 and fig. 2, a vertical rail 1 is enclosed, the upper and lower ends of the vertical rail 1 are fixedly connected with a locking device, so that the vertical rail can be locked on a blackboard, the dimension of the vertical rail 1 can be set according to the dimension of the blackboard due to the fixed dimension of the blackboard, the vertical rail 1 is connected with a sliding base 2 in a sliding manner, the sliding base 2 is slidably sleeved on the vertical rail 1 and can slide up and down along the vertical rail 1, one side of the sliding base 2 is rotatably connected with a four-stage screw 3, the four-stage screw 3 is externally threaded with four transverse rails 4, the four-stage screw 3 is simultaneously in threaded fit with the four transverse rails 4, the four-stage screw 3 rotates to drive the four transverse rails 4 to move up and down, each transverse rail 4 is connected with a chalk base 5 in a sliding manner, the chalk bases 5 are used for fixing, the four chalk bases 5 are connected through a, the arrangement enables the four chalk bases 5 to synchronously move left and right, and the four chalks can be simultaneously driven to slide left and right by pulling the vertical connecting rod 6, so that four straight lines are drawn on the blackboard;

level four screw rod 3 include four coaxial fixed connection's screw rod, four screw rod screw pitches increase gradually from last to down in proper order, four cross rails 4 overlap respectively and establish outside four screw rods, this setting can make level four screw rod 3 when rotating, the distance between four cross rails 4 increases in step, thereby convenient to use person draws four sharp that the interval is different, this embodiment is when specifically using, during initial state, the card has the chalk on the chalk base 5, will erect 1 card of rail on the blackboard, slide base 2 to required position from top to bottom, later, it adjusts the distance between four cross rails 4 to rotate level four screw rod 3, later the vertical connecting rod of pulling 6 rule on the blackboard can.

In the second embodiment, on the basis of the first embodiment, the second embodiment provides a structure convenient for a user to rotate the fourth-stage screw 3, specifically, referring to fig. 3 and 4, the fourth-stage screw 3 is coaxially and fixedly connected with a driven bevel gear 7, a driving bevel gear 8 rotatably connected to the sliding base 2 is engaged beside the driven bevel gear 7, the driving bevel gear 8 is coaxially and fixedly connected with an adjusting handle, and the adjusting handle can be rotated to drive the driving bevel gear 8 to rotate, so that the driven bevel gear 7 drives the fourth-stage screw 3 to rotate, and the distance between the four transverse rails 4 is adjusted;

slide base 2 on seted up scale 15, should set up and to make the user can be audio-visual to see out the distance between four horizontal rails 4, through the pitch between four screws on the level four screw rod 3 calculate the distance of movement of the horizontal rail 4 of the top and the relation of interval between the adjacent horizontal rail 4 to can be on slide base 2 with scale 15, convenient to use person adjusts.

Third embodiment, on the basis of first embodiment, this embodiment provides a specific structure of chalk clamp 10 on chalk base 5, it is specific, chalk base 5 on seted up through-hole 9, through-hole 9 in can dismantle and be connected with cylindric chalk clamp 10, chalk clamp 10 in be equipped with the chalk, chalk clamp 10 and through-hole 9 be interference fit, chalk clamp 10 one side seted up chucking seam 11, refer to fig. 4, fig. 5, the lateral wall of chalk clamp 10 is thinner metal, after chalk clamp 10 takes the chalk to get into through-hole 9, because of interference fit and chucking seam 11's effect, thereby chalk clamp 10 is tightly blocked to chalk clamp 10 inwards, the setting-out of being convenient for.

In the fourth embodiment, on the basis of the first embodiment, the screw rod of the sliding base 2 is engaged with the compression bolt 12, one end of the compression bolt 12 can be in contact connection with the vertical rail 1, when a user needs to slide the sliding base 2, the compression bolt 12 is loosened, after the position is determined, the compression bolt 12 is only needed to be tightened, the sliding base 2 can be pressed on the vertical rail 1, the compression bolt 12 is coaxially and fixedly connected with the compression handle, so that the user can conveniently tighten the compression bolt 12, one end of the compression bolt 12 in contact connection with the vertical rail 1 is fixedly connected with the rubber pad 13, and the rubber pad 13 is arranged, so that the compression bolt 12 can better press the sliding base 2 on the vertical rail 1, and meanwhile, the contact part of the compression bolt 12 and the vertical rail 1 can be protected.

Fifth embodiment, on the basis of the first embodiment, the support roller 14 is rotatably connected to the slide base 2, and the arrangement can prevent the slide base 2 from contacting the blackboard surface during the sliding process, thereby protecting the blackboard and the device.

When the chalk clamp is used specifically, the chalk clamp 10 is firstly clamped in the chalk clamp 10, the chalk clamp 10 is clamped into the through hole 9, the chalk clamp 10 can be firmly clamped in the through hole 9 due to the interference fit arrangement, meanwhile, due to the existence of the supporting roller 14, in the line drawing process, the chalk can not exert great force on the blackboard, the chalk clamp 10 can not be subjected to reaction force, and the chalk clamp 10 is not easy to be separated from the chalk base 5;

then clamping the vertical rail 1 on the blackboard, loosening the compression bolt 12, sliding the sliding base 2 up and down to a required position, tightening the compression bolt 12, and compressing the sliding base 2 on the vertical rail 1;

then, the rotation adjusting handle is rotated, the four-stage screw 3 is driven by the driving bevel gear 8 and the driven bevel gear 7 to rotate and adjust the distance between the four transverse rails 4, and then the vertical connecting rod 6 is pulled to scribe lines on the blackboard.

Claims

1. The English scriber is characterized in that a vertical rail (1) is wrapped, the vertical rail (1) is connected with a sliding base (2) in an up-and-down sliding mode, one side of the sliding base (2) is rotatably connected with a four-stage screw rod (3), four transverse rails (4) are sleeved on external threads of the four-stage screw rod (3), a chalk base (5) is connected onto each transverse rail (4) in a sliding mode, and the four chalk bases (5) are connected through a vertical connecting rod (6);

the four-stage screw (3) comprises four screws which are coaxially and fixedly connected, the screw pitches of the four screws are sequentially increased from top to bottom, and the four transverse rails (4) are respectively sleeved outside the four screws.

2. The English line drawing device according to claim 1, wherein the four-stage screw (3) is coaxially and fixedly connected with a driven bevel gear (7), and a driving bevel gear (8) rotatably connected to the sliding base (2) is meshed beside the driven bevel gear (7).

3. The English scriber of claim 1, wherein the chalk base (5) is provided with a through hole (9), a cylindrical chalk clamp (10) is detachably connected in the through hole (9), the chalk clamp (10) and the through hole (9) are in interference fit, and a clamping seam (11) is formed in one side of the chalk clamp (10).

4. An english line marker according to claim 1, characterized in that the screw of the slide base (2) is engaged with a hold-down bolt (12), and one end of the hold-down bolt (12) is contactably connected with the vertical rail (1).

5. The English line striper of claim 4 wherein the compression bolt (12) is fixedly connected with a rubber pad (13) at one end in contact with the vertical rail (1).

6. An english line striper as claimed in claim 1, wherein the slide base (2) has rotatably attached thereto a support roller (14).

7. An english line marker according to claim 1, characterized in that said sliding base (2) is provided with a scale (15).