CN212219753U

CN212219753U - Teaching compasses convenient to location

Info

Publication number: CN212219753U
Application number: CN202020715952.2U
Authority: CN
Inventors: 赵心仪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-12-25
Anticipated expiration: 2030-05-06

Abstract

The utility model discloses a teaching compasses convenient to location, including first montant, the bottom threaded connection sleeve pipe of first montant, sheathed tube bottom swing joint has the locating lever, the fixed surface of locating lever is connected with the bracing piece, the bottom swing joint of bracing piece has the sucking disc, the top swing joint of first montant has the second montant, the solid fixed ring of bottom fixedly connected with on second montant right side, gu fixed ring's right side runs through swing joint has the bolt, the right side of second montant runs through swing joint has the bull stick. The utility model discloses a cooperation that sets up first montant, sleeve pipe, second montant, bull stick, bolt, solid fixed ring, chalk, driven bevel gear, lead screw, fixed plate, set casing, installation shell, tighrening ring, initiative bevel gear, slider, activity shell, splint, locating lever, bracing piece and sucking disc is used, possesses and can conveniently fix a position the stiff end of teaching compasses, facilitates the advantage of using the chalk.

Description

Teaching compasses convenient to location

Technical Field

The utility model relates to a teaching aid technical field specifically is a teaching compasses convenient to location.

Background

The students can intuitively and vividly understand various instruments used by the teaching contents and the general names of the tools used by the teachers during teaching. The teaching aid is called for short. The teaching aid can improve the learning interest of students, enrich the perceptual knowledge, help to form clear concepts and develop the observation ability and thinking ability of the students. Generally, the teaching aid is divided into a common teaching aid, a special teaching aid and a child teaching aid.

Teaching compasses are a very common teaching aid in the teaching, and the one end of fixed centre of a circle is very unstable in teaching compasses's the use in the past, the phenomenon of fixed point slip skew can appear when drawing the circle, can lead to the irregularity of circle drawing like this, influences the teaching, and current teaching compasses are very inconvenient in the use to the chalk in addition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a teaching compasses convenient to location possesses and can conveniently fix a position the stiff end of teaching compasses, and the advantage of facilitating the use chalk has solved current teaching compasses stiff end and has fixed a position inconvenient, unstable, the inconvenient problem of using the chalk moreover.

In order to achieve the above object, the utility model provides a following technical scheme: a teaching compass convenient for positioning comprises a first vertical rod, wherein the bottom of the first vertical rod is in threaded connection with a sleeve, the bottom of the sleeve is movably connected with a positioning rod, the surface of the positioning rod is fixedly connected with a supporting rod, the bottom of the supporting rod is movably connected with a sucker, the top of the first vertical rod is movably connected with a second vertical rod, the bottom of the right side of the second vertical rod is fixedly connected with a fixing ring, the right side of the fixing ring is movably connected with a bolt in a penetrating manner, the left side of the bolt extends to the inner cavity of the fixing ring and is movably connected with a clamping plate, the right side of the second vertical rod is movably connected with a rotating rod in a penetrating manner, the left side of the rotating rod is movably connected with the left side of the inner cavity of the second vertical rod, the surface of the rotating rod is, the inner chamber swing joint of set casing has the movable shell, the equal fixedly connected with slider in top of movable shell both sides, the inner chamber swing joint of movable shell has the lead screw, the top of lead screw is run through to the top of fixed plate and is equipped with the driven bevel gear that the cooperation initiative bevel gear used, the bottom of movable shell is run through to the bottom and the fixedly connected with installation shell of set casing, the surface cover of installation shell is equipped with the tighrening ring, the inner chamber fixedly connected with chalk of installation shell, the bottom of chalk runs through to the bottom of second montant.

Preferably, the joint of the top of the first vertical rod and the second vertical rod is movably connected through a fastening pin, and the surface of the bolt is in threaded connection with the joint of the fixing ring.

Preferably, the junction of the surface of bull stick and second vertical pole passes through first bearing swing joint, the spout that the cooperation slider used is all seted up to the both sides of set casing inner chamber.

Preferably, the joint of the inner cavity of the movable shell and the screw rod is in threaded connection, and the joint of the surface of the screw rod and the fixed plate is movably connected through a second bearing.

Preferably, the inner cavity of the fastening ring is movably connected with the joint of the mounting shell, and the number of the support rods is three.

Preferably, the inner cavity of the second vertical rod is fixedly connected with the fixing plate, and the mounting shell is made of plastic.

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

1. the utility model discloses a cooperation that sets up first montant, sleeve pipe, second montant, bull stick, bolt, solid fixed ring, chalk, driven bevel gear, lead screw, fixed plate, set casing, installation shell, tighrening ring, initiative bevel gear, slider, activity shell, splint, locating lever, bracing piece and sucking disc is used, possesses and can conveniently fix a position the stiff end of teaching compasses, facilitates the advantage of using the chalk, is worth promoting.

2. The utility model can limit the moving track of the movable shell by arranging the sliding block and the sliding groove;

the first vertical rod and the second vertical rod can be movably connected by arranging the fastening pin;

the first bearing is arranged, so that the rotating rod can be conveniently installed;

the fastening ring is arranged, so that the chalk can be conveniently fixed;

through setting up the second bearing, can make things convenient for the lead screw installation.

Drawings

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

fig. 2 is a front sectional view of a second vertical rod of the present invention;

fig. 3 is an enlarged view of a in fig. 1 according to the present invention.

In the figure: the chalk holder comprises a first vertical rod 1, a sleeve 2, a second vertical rod 3, a rotating rod 4, a bolt 5, a fixing ring 6, chalk 7, a driven bevel gear 8, a screw rod 9, a fixing plate 10, a fixing shell 11, a mounting shell 12, a fastening ring 13, a driving bevel gear 14, a sliding block 15, a movable shell 16, a clamping plate 17, a positioning rod 18, a supporting rod 19 and a sucker 20.

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 provides a first montant 1, sleeve pipe 2, second montant 3, bull stick 4, bolt 5, solid fixed ring 6, chalk 7, driven bevel gear 8, lead screw 9, fixed plate 10, set casing 11, installation shell 12, tighrening ring 13, initiative bevel gear 14, slider 15, movable shell 16, splint 17, locating lever 18, bracing piece 19 and sucking disc 20 etc. parts are general standard or the part that technical staff in the field knows, its structure and principle all can learn through the technical manual or learn through conventional experimental method for technical staff in the field.

Referring to fig. 1-3, a teaching compass convenient for positioning comprises a first vertical rod 1, a bottom threaded connection sleeve 2 of the first vertical rod 1, a positioning rod 18 movably connected to the bottom of the sleeve 2, a supporting rod 19 fixedly connected to the surface of the positioning rod 18, a suction cup 20 movably connected to the bottom of the supporting rod 19, a second vertical rod 3 movably connected to the top of the first vertical rod 1, a fixing ring 6 fixedly connected to the bottom of the right side of the second vertical rod 3, a bolt 5 movably connected to the right side of the fixing ring 6 in a penetrating manner, a left side of the bolt 5 extending to the inner cavity of the fixing ring 6 and movably connected to a clamping plate 17, a rotating rod 4 movably connected to the right side of the second vertical rod 3 in a penetrating manner, a driving bevel gear 14 movably connected to the left side of the inner cavity of the second vertical rod 3, a fixing plate 10 arranged at the bottom of the driving bevel gear 14, the inner cavity of the fixed shell 11 is movably connected with a movable shell 16, the tops of two sides of the movable shell 16 are fixedly connected with sliding blocks 15, the inner cavity of the movable shell 16 is movably connected with a screw rod 9, the top of the screw rod 9 penetrates through the top of the fixed plate 10 and is sleeved with a driven bevel gear 8 matched with a driving bevel gear 14 for use, the bottom of the movable shell 16 penetrates through the bottom of the fixed shell 11 and is fixedly connected with a mounting shell 12, a fastening ring 13 is sleeved on the surface of the mounting shell 12, a chalk 7 is fixedly connected with the inner cavity of the mounting shell 12, and the bottom of the chalk 7 penetrates through the bottom of the;

the joint of the top of the first vertical rod 1 and the second vertical rod 3 is movably connected through a fastening pin, and the surface of the bolt 5 is in threaded connection with the joint of the fixing ring 6;

the surface of the rotating rod 4 is movably connected with the joint of the second vertical rod 3 through a first bearing, and sliding grooves matched with the sliding blocks 15 are formed in the two sides of the inner cavity of the fixed shell 11;

the inner cavity of the movable shell 16 is in threaded connection with the joint of the screw rod 9, and the joint of the surface of the screw rod 9 and the fixed plate 10 is movably connected through a second bearing;

the inner cavity of the fastening ring 13 is movably connected with the joint of the mounting shell 12, and the number of the support rods 19 is three;

the inner cavity of the second vertical rod 3 is fixedly connected with the fixed plate 10, and the mounting shell 12 is made of plastic;

the sliding block 15 and the sliding groove are arranged, so that the moving track of the movable shell 16 can be limited;

the first vertical rod 1 and the second vertical rod 3 can be movably connected by arranging the fastening pin;

the first bearing is arranged, so that the rotating rod 4 can be conveniently installed;

the chalk 7 can be conveniently fixed by arranging the fastening ring 13;

through setting up the second bearing, can make things convenient for lead screw 9 to install.

During the use, locating lever 18 and blackboard contact, sucking disc 20 also contacts with the blackboard thereupon, make locating lever 18 difficult slip through sucking disc 20's effect, locating lever 18 just can not squint the irregularity that causes the circle drawing like this, then through rotating bull stick 4, bull stick 4 drives lead screw 9 through initiative bevel gear 14 and driven bevel gear 8 and rotates, lead screw 9 rotates and makes movable shell 16 remove downwards, chalk 7 also removes downwards thereupon, thereby shift out second montant 3, can the person's of facilitating the use control use length of chalk 7 like this, it is more convenient to use, when needing to use drawing stroke circle, pass solid fixed ring 6 to the painting brush, then rotatory bolt 5, bolt 5 drives splint 17 and removes left and fixes the painting brush, just so can use the painting brush to draw the circle.

In summary, the following steps: this teaching compasses convenient to location, through first montant 1, sleeve pipe 2, second montant 3, the bull stick 4, bolt 5, solid fixed ring 6, chalk 7, driven bevel gear 8, the lead screw 9, the fixed plate 10, the set casing 11, the installation shell 12, the tighrening ring 13, drive bevel gear 14, slider 15, the movable housing 16, splint 17, locating lever 18, bracing piece 19 and sucking disc 20's cooperation is used, it is inconvenient to have solved current teaching compasses stiff end location, it is unstable, and the problem of inconvenient use chalk.

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 teaching compasses convenient to location, includes first montant (1), its characterized in that: the bottom of the first vertical rod (1) is in threaded connection with the sleeve (2), the bottom of the sleeve (2) is movably connected with a positioning rod (18), the surface of the positioning rod (18) is fixedly connected with a supporting rod (19), the bottom of the supporting rod (19) is movably connected with a sucker (20), the top of the first vertical rod (1) is movably connected with a second vertical rod (3), the bottom of the right side of the second vertical rod (3) is fixedly connected with a fixing ring (6), the right side of the fixing ring (6) is in through movable connection with a bolt (5), the left side of the bolt (5) extends to the inner cavity of the fixing ring (6) and is movably connected with a clamping plate (17), the right side of the second vertical rod (3) is in through movable connection with a rotating rod (4), the left side of the rotating rod (4) is movably connected with the left side of the inner cavity of the second vertical rod (3), a fixed plate (10) is arranged at the bottom of the driving bevel gear (14), a fixed shell (11) is fixedly connected at the bottom of the fixed plate (10), the inner cavity of the fixed shell (11) is movably connected with a movable shell (16), the tops of both sides of the movable shell (16) are fixedly connected with sliding blocks (15), the inner cavity of the movable shell (16) is movably connected with a screw rod (9), the top of the screw rod (9) penetrates to the top of the fixed plate (10) and is sleeved with a driven bevel gear (8) matched with the driving bevel gear (14) for use, the bottom of the movable shell (16) penetrates through the bottom of the fixed shell (11) and is fixedly connected with an installation shell (12), a fastening ring (13) is sleeved on the surface of the mounting shell (12), chalk (7) is fixedly connected with the inner cavity of the mounting shell (12), the bottom of the chalk (7) penetrates through the bottom of the second vertical rod (3).

2. The teaching compass convenient to position as claimed in claim 1, wherein: the top of the first vertical rod (1) is movably connected with the joint of the second vertical rod (3) through a fastening pin, and the surface of the bolt (5) is in threaded connection with the joint of the fixing ring (6).

3. The teaching compass convenient to position as claimed in claim 1, wherein: the surface of the rotating rod (4) is movably connected with the joint of the second vertical rod (3) through a first bearing, and sliding grooves matched with the sliding blocks (15) for use are formed in the two sides of the inner cavity of the fixed shell (11).

4. The teaching compass convenient to position as claimed in claim 1, wherein: the inner cavity of the movable shell (16) is in threaded connection with the joint of the screw rod (9), and the joint of the surface of the screw rod (9) and the fixed plate (10) is movably connected through a second bearing.

5. The teaching compass convenient to position as claimed in claim 1, wherein: the inner cavity of the fastening ring (13) is movably connected with the joint of the mounting shell (12), and the number of the support rods (19) is three.

6. The teaching compass convenient to position as claimed in claim 1, wherein: the inner cavity of the second vertical rod (3) is fixedly connected with the fixing plate (10), and the mounting shell (12) is made of plastic.