CN214295218U

CN214295218U - Chalk writing aid

Info

Publication number: CN214295218U
Application number: CN202023293820.4U
Authority: CN
Inventors: 梅渊; 李依; 王诗章; 檀世博
Original assignee: Hubei University of Technology
Current assignee: Hubei University of Technology
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-28
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a chalk helps writing ware, including handheld casing, the left side internal weld of handheld casing has the solenoid, the inner circle screw thread of solenoid cup joints the screw rod that runs through and extend to in the handheld casing, the right-hand member of screw rod rotates and is connected with the connecting block, the one end welding that the screw rod was kept away from to the connecting block has unable adjustment base, the equal sliding connection in top and the bottom of unable adjustment base's left side inner wall has the stripper plate, one side welding that the stripper plate kept away from each other has the second spring, one side that the stripper plate was kept away from to the second spring and unable adjustment base's top and bottom inner wall welding, one side that the stripper plate is close to each other is fixed with the chalk. The device simple structure, the modern design thinks about ingeniously, can use short chalk, improves the live time of chalk, can use to the chalk of different diameters simultaneously, has avoided user's both hands direct contact chalk, convenient to use, and the practicality is strong, is fit for extensively promoting.

Description

Chalk writing aid

Technical Field

The utility model relates to a chalk helps the field of writing, especially relates to a chalk helps writing ware.

Background

At present, chalk is a tool widely used in daily life and generally used for writing on a blackboard, ancient chalk is generally made of natural chalk, but other substances are frequently used for replacing the ancient chalk, and a chalk writer is a tool for assisting chalk writing.

In the use of chalk, because the chalk can shorten gradually, and then cause the difficulty to user's use, be not convenient for write, user's both hands direct contact to chalk can make the hand cause the pollution simultaneously, and then influences user's healthy, and the practicality is not strong, uses inconveniently, is unsuitable to extensively promote.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a chalk helps writing ware, the device simple structure, the modern design conceives ingeniously, can use short chalk, improves the live time of chalk, can use to the chalk of different diameters simultaneously, has avoided user's both hands direct contact chalk, convenient to use, and the practicality is strong, is fit for extensively promoting.

(II) technical scheme

The utility model provides a chalk writing aid, which comprises a hand-held shell, wherein a screwed pipe is welded inside the left side of the hand-held shell, the inner ring thread of the screwed pipe is sleeved with a screw rod which penetrates and extends into the hand-held shell, the right end of the screw rod is rotatably connected with a connecting block, one end of the connecting block, which is far away from the screw rod, is welded with a fixed base, the top and the bottom of the left inner wall of the fixed base are both slidably connected with an extrusion plate, one side, which is far away from the extrusion plate, of the second spring is welded with the top and the bottom inner wall of the fixed base, one side, which is close to each other, of the extrusion plate is fixed with chalk, the top and the bottom of the hand-held shell are both sleeved with movable rods, one end, which is close to each other, is welded with a clamping plate positioned on the outer ring of the chalk, one end, which is far away from each other, is welded with a baffle plate, one side welding that the baffle is close to the grip block has the first spring of cup jointing at the movable rod outer lane, the one end welding that the baffle was kept away from to first spring has the sliding block, the one side and the handheld casing sliding connection that the sliding block is close to each other.

Furthermore, two first chutes are formed in the top and the bottom of the handheld shell, first sliding blocks are sleeved in the first chutes, one sides, close to each other, of the sliding blocks are welded with the first sliding blocks, and the vertical sections of the first chutes are T-shaped.

Furthermore, the top and the bottom of the handheld shell are both provided with through holes along the horizontal direction, and the movable rod penetrates through the through holes to be welded with the clamping plate and the baffle plate respectively.

Furthermore, a second sliding groove is formed in the top and the bottom of the inner wall of the left side of the fixed base, a second sliding block is sleeved in the second sliding groove, the left side of the extrusion plate is welded with the second sliding block, and the cross section of the second sliding groove is T-shaped.

Furthermore, a sliding groove is formed in the right end of the screw rod, and the connecting block is sleeved in the sliding groove.

Furthermore, the anti-slip holes are formed in the left side of the outer ring of the handheld shell, and a rotating disc is welded on the left side of the screw rod.

Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has:

the device is through installing screw rod, solenoid, grip block, stripper plate, spring, sliding block, movable rod isotructure, wherein can fix the chalk in handheld casing through grip block and stripper plate, maintains the stability of chalk when using, and can control unable adjustment base's motion through rotating the screw rod, and then can control the motion of chalk, makes the chalk can stretch out handheld casing with the short-term, and then makes the user can use short chalk. The device simple structure, the modern design thinks about ingeniously, can use short chalk, improves the live time of chalk, can use to the chalk of different diameters simultaneously, has avoided user's both hands direct contact chalk, convenient to use, and the practicality is strong, is fit for extensively promoting.

Drawings

Fig. 1 is a schematic front view of a chalk writing aid according to the present invention.

Fig. 2 is a partially enlarged structural schematic view of a portion a in fig. 1 of a chalk writing aid provided by the present invention.

Fig. 3 is a schematic view of a partial overlooking structure of a handheld casing of a chalk writing aid provided by the present invention.

Reference numerals: 1. a hand-held housing; 2. chalk; 3. a baffle plate; 4. a first spring; 5. a clamping plate; 6. a pressing plate; 7. a fixed base; 8. connecting blocks; 9. a screw; 10. a solenoid; 11. a second spring; 12. a movable rod; 13. and a slider.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in figures 1-3, the utility model provides a chalk writing aid, which comprises a hand-held casing 1, a screw tube 10 is welded inside the left side of the hand-held casing 1, a screw rod 9 which penetrates through and extends into the hand-held casing 1 is sleeved by the inner ring thread of the screw tube 10, the right end of the screw rod 9 is rotatably connected with a connecting block 8, one end of the connecting block 8, which is far away from the screw rod 9, is welded with a fixed base 7, the top and the bottom of the inner wall of the left side of the fixed base 7 are both slidably connected with an extrusion plate 6, one side of the extrusion plate 6, which is far away from each other, is welded with a second spring 11, one side of the second spring 11, which is far away from the extrusion plate 6, is welded with the inner wall of the top and the bottom of the fixed base 7, one side of the extrusion plate 6, which is close to each other, is fixed with a chalk 2, the top and the bottom of the hand-held casing 1 are both sleeved with a movable rod 12, one end, which is welded with a holding plate 5, which is close to each other, is positioned on the outer ring of the chalk 2, one end welding that movable rod 12 kept away from each other has baffle 3, and one side welding that baffle 3 is close to grip block 5 has first spring 4 of cup jointing in movable rod 12 outer lane, and the one end welding that baffle 3 was kept away from to first spring 4 has sliding block 13, and one side that sliding block 13 was close to each other and handheld 1 sliding connection of casing.

Two first spouts have all been seted up to handheld casing 1's top and bottom, first slider has been cup jointed in the first spout, one side and the first slider welding that sliding block 13 is close to each other, the vertical section of first spout is the T type, the through-hole has all been seted up along the horizontal direction in handheld casing 1's top and bottom, movable rod 12 passes the through-hole and welds with grip block 5 and baffle 3 respectively, the second spout has all been seted up to unable adjustment base 7's left side inner wall top and bottom, cup joint the second slider in the second spout, the left side and the welding of second slider of stripper plate 6, the cross section of second spout is the T type, the sliding tray has been seted up to screw rod 9's right-hand member, connecting block 8 cup joints in the sliding tray, anti-skidding hole has all been seted up in handheld casing 1's outer lane left side, the left side welding of screw rod 9 has the rolling disc.

In the utility model, firstly, the user pulls the baffle 3 upwards and downwards to drive the holding plate 5 to move upwards and downwards through the movable rod 12, when the distance between the holding plates 5 is larger than the diameter of the chalk 2, the chalk 2 is inserted into the handheld shell 1, when the chalk 2 enters the handheld shell 1, the extrusion plate 6 can be extruded to further move the extrusion plate 6 upwards and downwards, meanwhile, the chalk 2 can be fixed on the fixed base 7 by the elastic potential energy of the second spring 11, the holding plate 5 can also fix the chalk 2 under the elastic potential energy of the first spring 4, then the user uses the chalk 2 through the handheld shell 1, when the chalk 2 is shortened, the screw rod 9 is rotated through the rotating disc, because the screw rod 9 is meshed with the screw tube 10, and then the screw rod 9 can move rightwards when rotating, and then can promote unable adjustment base 7 and move right, and unable adjustment base 7 moves right, and the grip block 5 of centre gripping in chalk 2 outer lane also moves right, and then drives movable rod 12 and sliding block 13 and move right, makes chalk 2 in the handheld casing 1 stretch out handheld casing 1, and then makes the user continue to use chalk 2.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The chalk writing aid comprises a handheld shell (1) and is characterized in that a solenoid (10) is welded inside the left side of the handheld shell (1), a screw rod (9) penetrating through and extending into the handheld shell (1) is sleeved on the inner ring of the solenoid (10) in a threaded manner, a connecting block (8) is connected to the right end of the screw rod (9) in a rotating manner, a fixed base (7) is welded at one end, far away from the screw rod (9), of the connecting block (8), an extrusion plate (6) is connected to the top and the bottom of the inner wall of the left side of the fixed base (7) in a sliding manner, a second spring (11) is welded at one side, far away from the extrusion plate (6), of the second spring (11) and the inner wall of the top and the bottom of the fixed base (7), and chalks (2) are fixed at one side, near each other, of the extrusion plate (6), the utility model discloses a chalk holder, including handheld casing (1), movable rod (12) have all been cup jointed to the top and the bottom of handheld casing (1), the one end welding that movable rod (12) are close to each other has grip block (5) that are located chalk (2) outer lane, the one end welding that movable rod (12) were kept away from each other has baffle (3), one side welding that baffle (3) are close to grip block (5) has first spring (4) of cup jointing in movable rod (12) outer lane, the one end welding that baffle (3) were kept away from in first spring (4) has sliding block (13), one side and handheld casing (1) sliding connection that sliding block (13) are close to each other.

2. The chalk writing aid according to claim 1, wherein the top and the bottom of the hand-held casing (1) are respectively provided with two first sliding grooves, a first sliding block is sleeved in the first sliding grooves, one sides of the sliding blocks (13) close to each other are welded with the first sliding blocks, and the vertical section of the first sliding grooves is T-shaped.

3. The chalk writing aid according to claim 1, wherein the top and bottom of the hand-held casing (1) are provided with through holes along the horizontal direction, and the movable rod (12) passes through the through holes and is welded with the clamping plate (5) and the baffle plate (3) respectively.

4. The chalk writing aid according to claim 1, wherein the top and the bottom of the left inner wall of the fixed base (7) are provided with second sliding grooves, second sliding blocks are sleeved in the second sliding grooves, the left side of the extrusion plate (6) is welded with the second sliding blocks, and the cross section of the second sliding grooves is T-shaped.

5. The chalk writing aid according to claim 1, wherein a sliding groove is formed at the right end of the screw rod (9), and the connecting block (8) is sleeved in the sliding groove.

6. The chalk writing aid device as claimed in claim 1, wherein the left side of the outer ring of the handheld shell (1) is provided with an anti-slip hole, and the left side of the screw rod (9) is welded with a rotating disc.