CN211543033U

CN211543033U - Chalk clamping device convenient to use

Info

Publication number: CN211543033U
Application number: CN201921745489.XU
Authority: CN
Inventors: 曹会兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-09-22
Anticipated expiration: 2029-10-17

Abstract

The utility model discloses a chalk clamping device convenient to use, including violently managing, violently manage left top and bottom and all seted up the slot hole, slot hole inner chamber's right side is seted up flutedly, the surface thread bush of violently managing is equipped with the thread bush, the first spring of inner wall fixedly connected with of recess, the one end fixedly connected with connecting plate of recess inner wall is kept away from to first spring. The utility model discloses possess and carry out the centre gripping to the chalk, reduce mr's finger and chalk area of contact and number of times, practice thrift the chalk resource, the advantage of environmental protection, solved the mr often with the chalk contact when using the chalk to write, make easily to be stained with a large amount of dust on hand, these dusts and the long-time contact of skin on hand can bring very big harm for user's healthy, the mr still breaks the chalk when using longer chalk to write easily, short chalk after breaking a bit will unable the use, the problem of very big waste has been caused.

Description

Chalk clamping device convenient to use

Technical Field

The utility model relates to a teaching aid technical field specifically is a chalk clamping device convenient to use.

Background

Teaching aids enable students to understand all kinds of appliances used by teaching contents visually and vividly and the general names of the appliances used by teachers during teaching, the teaching aids are short for, the teaching aids can improve the learning interest of the students, enrich perceptual knowledge, help to form clear concepts, develop the observation ability and thinking ability of the students, and generally divide the teaching aids into 3 types of common teaching aids, special teaching aids and children teaching aids.

The teacher need use the chalk when writing teaching content on the blackboard, the principal ingredients of chalk comprises lime stone and gypsum, the teacher often contacts with the chalk when using the chalk to write, make easily being stained with a large amount of dusts on hand, these dusts and the long-time contact of skin on hand can bring very big harm for user's healthy, the teacher still breaks the chalk when using longer chalk to write easily, short chalk after breaking a bit will not be used, very big waste has been caused, we provide a chalk clamping device who facilitates to use for this reason.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chalk clamping device convenient to use, possess and carry out the centre gripping to the chalk, reduce mr's finger and chalk area of contact and number of times, practice thrift the chalk resource, the advantage of environmental protection, solved mr and often contacted with the chalk when using the chalk to write, make easily to be stained with a large amount of dust on hand, these dust and the long-time contact of the skin on hand can bring very big harm for user's healthy, mr still breaks the chalk when using longer chalk to write easily, short chalk after breaking a bit will be unable to be used, the problem of very big waste has been caused.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a chalk clamping device convenient to use, includes violently the pipe, violently manage left top and bottom and all seted up the slot hole, slot hole inner chamber's right side is seted up flutedly, the surperficial thread bush of violently managing is equipped with the thread bush, the first spring of inner wall fixedly connected with of recess, the one end fixedly connected with connecting plate of recess inner wall is kept away from to first spring, the connecting plate is through the inner wall swing joint of pivot and recess, the one end that recess inner chamber was kept away from to the connecting plate extends to the inner chamber and the fixedly connected with extrusion piece of slot hole, the right side of violently managing runs through and is provided with the push rod, the left end of push rod runs through to the inner chamber and the fixedly connected with push pedal of violently managing, the push rod is located the pot head of violen.

Preferably, a circular plate is fixedly connected to the right end of the push rod, the circular plate is circular in side view, and the diameter of the circular plate is larger than that of the push rod.

Preferably, the right side of the transverse pipe is provided with a through hole matched with the push rod, the diameter of the through hole is larger than that of the push rod, and the push rod penetrates through the through hole.

Preferably, the surface of the transverse pipe is provided with an external thread, and the inner wall of the thread sleeve is provided with an internal thread matched with the external thread.

Preferably, one side, opposite to the extrusion block, of the extrusion block extends to an inner cavity of the transverse pipe and is fixedly connected with an anti-slip mat, anti-slip lines are arranged on one side, close to the chalk, of the anti-slip mat, and one side, far away from the anti-slip mat, of the extrusion block extends to the outside of the long hole.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a violently manage, the slot hole, the recess, the thread bush, first spring, the connecting plate, the extrusion piece, the push rod, push pedal and second spring cooperate, it carries out the centre gripping to the chalk to possess, reduce mr's finger and chalk area of contact and number of times, practice thrift the chalk resource, the advantage of environmental protection, solved mr and often contacted with the chalk when using the chalk to write, make easily to be stained with a large amount of dust on hand, these dusts and the long-time contact of the skin on hand can bring very big harm for user's healthy, mr still breaks the chalk when using longer chalk to write easily, short chalk after breaking off will unable the use a bit, the problem of very big waste has been caused.

2. The utility model discloses a set up first spring, produce the pulling force to the connecting plate, make the connecting plate keep horizontal position, through setting up the second spring, the return of the push pedal of being convenient for through setting up the extrusion piece, can carry out the centre gripping to the chalk, through setting up the plectane, is convenient for promote push rod lateral shifting, through setting up the slipmat, has increased the roughness on extrusion piece surface, can be to the more firm of chalk centre gripping.

Drawings

FIG. 1 is a schematic sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of a portion of the structure A in FIG. 1 according to the present invention;

fig. 3 is a schematic view of the structure of the present invention.

In the figure: the device comprises a transverse pipe 1, a long hole 2, a groove 3, a thread bush 4, a first spring 5, a connecting plate 6, an extrusion block 7, a push rod 8, a push plate 9, a second spring 10, chalk 11, a circular plate 12, a through hole 13 and an anti-skid pad 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", 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 simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses a violently pipe 1, thread bush 4, first spring 5, connecting plate 6, extrusion piece 7, push rod 8, push pedal 9, second spring 10, chalk 11, plectane 12 and slipmat 14 part are the parts that general standard or technical staff in the field know, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1-3, a convenient chalk clamping device comprises a horizontal pipe 1, wherein the top and the bottom of the left side of the horizontal pipe 1 are both provided with a long hole 2, the right side of the inner cavity of the long hole 2 is provided with a groove 3, the surface of the horizontal pipe 1 is in threaded sleeve connection with a threaded sleeve 4, the inner wall of the groove 3 is fixedly connected with a first spring 5, one end of the first spring 5, which is far away from the inner wall of the groove 3, is fixedly connected with a connecting plate 6, the connecting plate 6 is movably connected with the inner wall of the groove 3 through a rotating shaft, one end of the connecting plate 6, which is far away from the inner cavity of the groove 3, extends to the inner cavity of the long hole 2 and is fixedly connected with an extrusion block 7, the right side of the horizontal pipe 1 is provided with a push rod 8 in a penetrating manner, the left end of the push rod 8 penetrates to the inner cavity, the right end of the push rod 8 is fixedly connected with a circular plate 12, the side view shape of the circular plate 12 is circular, the diameter of the circular plate 12 is larger than that of the push rod 8, the right side of the transverse pipe 1 is provided with a through hole 13 matched with the push rod 8, the diameter of the through hole 13 is larger than that of the push rod 8, the push rod 8 penetrates through the through hole 13, the surface of the transverse pipe 1 is provided with an external thread, the inner wall of the thread sleeve 4 is provided with an internal thread matched with the external thread, one side, opposite to the extrusion block 7, of the extrusion block extends to the inner cavity of the transverse pipe 1 and is fixedly connected with an anti-slip mat 14, one side, close to the chalk 11, of the anti-slip mat 14 is provided with anti-slip lines, one side, far away from the anti-slip mat 14, of the extrusion block 7 extends to the outside of the long hole 2, the first spring, through the arrangement of the circular plate 12, the push rod 8 is convenient to push to move transversely, through the arrangement of the anti-slip pad 14, the roughness of the surface of the extrusion block 7 is increased, the chalk 11 can be clamped more stably, through the transverse pipe 1, the long hole 2, the groove 3, the threaded sleeve 4, the first spring 5, the connecting plate 6, the extrusion block 7, the push rod 8, the push plate 9 and the second spring 10, the chalk holder has the advantages of clamping the chalk 11, reducing the contact area and the contact frequency of fingers of a teacher with the chalk 11, saving the resources of the chalk 11 and protecting the environment, the problem that a teacher often contacts with the chalk 11 when using the chalk 11 for writing and is easily stained with a large amount of dust is solved, the dust can bring great harm to the health of a user due to the long-time contact of the dust with the skin on the hand, the teacher can easily break the chalk 11 when using a long chalk 11, and the broken short chalk 11 can, causing a great waste problem.

During the use, the right-hand member of chalk 11 is inserted and is promoted push plate 9 and remove right in the inner chamber of violently managing 1, and push plate 9 compresses second spring 10 and promotes push rod 8 and remove, adjusts the length that the chalk 11 left end stretches out, and rotatory thread bush 4 makes thread bush 4 remove left with violently managing 1 threaded connection, and the inner wall of thread bush 4 contacts the back with extrusion piece 7, promotes extrusion piece 7 vertical movement, is close to chalk 11 through two extrusion pieces 7 and fixes.

In summary, the following steps: this chalk clamping device convenient to use, through violently managing 1, the slot hole 2, recess 3, thread bush 4, first spring 5, connecting plate 6, extrusion piece 7, push rod 8, push pedal 9 and second spring 10 cooperate, the teacher often contacts with the chalk when using the chalk to write has been solved, make easily and be stained with a large amount of dust on hand, these dusts and the skin on hand contact for a long time can bring very big harm for user's healthy, the teacher still breaks the chalk easily when using longer chalk to write, the short chalk after breaking a bit will be unable to be used, the very big extravagant problem has been caused.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a chalk clamping device convenient to use, includes violently pipe (1), its characterized in that: the novel horizontal pipe is characterized in that a long hole (2) is formed in the left top and the left bottom of the horizontal pipe (1), a groove (3) is formed in the right side of the inner cavity of the long hole (2), a threaded sleeve (4) is sleeved on the surface of the horizontal pipe (1), a first spring (5) is fixedly connected to the inner wall of the groove (3), a connecting plate (6) is fixedly connected to one end, away from the inner wall of the groove (3), of the first spring (5), the connecting plate (6) is movably connected with the inner wall of the groove (3) through a rotating shaft, one end, away from the inner cavity of the groove (3), of the connecting plate (6) extends to the inner cavity of the long hole (2) and is fixedly connected with an extrusion block (7), a push rod (8) penetrates through the right side of the horizontal pipe (1), the left end of the push rod (8) penetrates through the inner cavity of the horizontal pipe (1) and is, the left side of the push plate (9) is provided with chalk (11), and the left end of the chalk (11) extends to the left side of the transverse pipe (1).

2. A chalk holding device for facilitating use of the chalk in accordance with claim 1, wherein: the right end fixedly connected with plectane (12) of push rod (8), the side view shape of plectane (12) is circular, the diameter of plectane (12) is greater than the diameter of push rod (8).

3. A chalk holding device for facilitating use of the chalk in accordance with claim 1, wherein: through-hole (13) with push rod (8) looks adaptation are seted up on the right side of violently managing (1), the diameter of through-hole (13) is greater than the diameter of push rod (8), push rod (8) run through-hole (13).

4. A chalk holding device for facilitating use of the chalk in accordance with claim 1, wherein: the surface of the transverse pipe (1) is provided with external threads, and the inner wall of the thread sleeve (4) is provided with internal threads matched with the external threads.

5. A chalk holding device for facilitating use of the chalk in accordance with claim 1, wherein: one side, opposite to the extrusion block (7), of the extrusion block extends to an inner cavity of the transverse pipe (1) and is fixedly connected with an anti-slip pad (14), anti-slip grains are arranged on one side, close to the chalk (11), of the anti-slip pad (14), and one side, far away from the anti-slip pad (14), of the extrusion block (7) extends to the outside of the long hole (2).