CN210091451U

CN210091451U - Pointer convenient to use

Info

Publication number: CN210091451U
Application number: CN201920649475.1U
Authority: CN
Inventors: 章晨焱; 王劼
Original assignee: Changzhou Second Peoples Hospital
Current assignee: Changzhou Second Peoples Hospital
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-02-18
Anticipated expiration: 2029-05-07

Abstract

The utility model relates to the technical field of teaching equipment, and discloses a pointer convenient to use, which comprises a handle, wherein the lower end of the handle is provided with a rectangular vertical rod, the top of the rectangular vertical rod is fixedly connected with the bottom of the handle, the pointer convenient to use is characterized in that a rectangular rod is arranged in a rectangular groove, the lower end of the left side of the rectangular rod is connected with the inner wall of the rectangular groove of the rectangular vertical rod through a hidden buckle, the upper end of the rectangular rod is fixedly connected with a round rod, the middle part of the round rod is provided with an arrow head, the two ends of the round rod are respectively protruded with a round block, the upper ends of the front and the back sides of the rectangular vertical rod are respectively provided with a round hole, the upper end of the round hole is provided with an arc-shaped label, and the arc-shaped label is engraved with an angle value, so that the size of an, the user can draw the desired angle on the blackboard conveniently.

Description

Pointer convenient to use

Technical Field

The utility model relates to a teaching equipment technical field specifically is a teacher's pointer that facilitates use.

Background

The teacher refers to a stick for indicating board books and pictures when a teacher gives a lecture, and the old teacher is used for a tool similar to a ring ruler for punishing and flagging students; modern society teaching, especially the high college work has basically been replaced by electronic pointer, in addition, also refer to teaching work, for example Chinese patent discloses a pointer (patent number: CN138781444U), the utility model discloses a pointer, its technical scheme is that, including the body of rod, the shaft end of the body of rod extends along the axial direction to form the clamping part for fixing chalk, the top end of the clamping part along the axial direction inwards sets up the object placing hole for placing chalk, the side of the clamping part along the radial direction sets up the through hole, fixed with the barrel of its mutual cooperation in the through hole, set up the waist hole for the chalk to pass on the arc surface of the barrel, the waist hole and the object placing hole are mutually communicated, the other end of the barrel relative to the clamping part is equipped with the screw hole, the screw hole is connected with the clamp bolt by screw thread, the end of the clamp bolt in the barrel is connected with the clamp block, the maximum external diameter of the clamp block is, the utility model aims at providing a teacher's pointer can mark the important content on the blackboard by ruling to improve the teaching quality, but this teacher's pointer is not convenient for draw, can not facilitate when drawing on the blackboard for the user.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a teacher's pointer that facilitates use possesses the advantage such as being convenient for draw, has solved the problem that the user was inconvenient to draw on the blackboard.

(II) technical scheme

In order to realize the drawing purpose of being convenient for, the utility model provides a following technical scheme: a pointer convenient to use comprises a handle, wherein a rectangular vertical rod is arranged at the lower end of the handle, the top of the rectangular vertical rod is fixedly connected with the bottom of the handle, a rectangular groove is recessed in the right side of the rectangular vertical rod, a rectangular rod is arranged in the rectangular groove, an arc-shaped handle is fixedly connected with the bottom of the right side of the rectangular rod, the rectangular rod is embedded in the rectangular groove of the rectangular vertical rod, a round rod is fixedly connected with the upper end of the rectangular rod, an arrow is arranged in the middle of the two ends of the round rod, a circle of round blocks protrudes from the two ends of the round rod, the upper ends of the front and back sides of the rectangular vertical rod are penetrated through by a round hole, round grooves are arranged on the two sides inside the rectangular groove, the central point of the round groove corresponds to the central point of the round hole, the diameter of the round rod is identical to the size of the round hole, the size of the, the two ends of the round rod are respectively arranged in the circular hole of the rectangular vertical rod, the round blocks protruding from the two ends of the round rod are embedded in the semicircular grooves in the circular hole of the rectangular vertical rod, the upper front end of the rectangular vertical rod is recessed with a square groove, the square groove is positioned under the circular hole, a semicircular plate is arranged in the square groove, the diameter of the semicircular plate is one centimeter larger than that of the round rod, the inner ring of the semicircular plate just can wrap the round rod from a small section exposed out of the circular hole, the bottom of the square groove is recessed with a semicircular groove, a pushing rod is arranged in the semicircular groove, the top of the pushing rod is provided with a bearing, the inner ring of the bearing is fixedly connected with the top of the pushing rod, the outer ring of the bearing is fixedly connected with the bottom of the semicircular plate, the bottom of the pushing rod is fixedly connected with a cross rod, and a semicircular column groove is, the size of the semi-cylindrical groove is consistent with that of the cross bar, the upper end of the semi-cylindrical groove on the rectangular vertical bar is provided with another semi-cylindrical groove, the left end of the other semi-cylindrical groove is communicated with the left side of the cylindrical groove, the middle and the bottom of the semi-cylindrical groove are provided with a baffle plate, the shape of the baffle plate is arc-shaped, the two sides of the baffle plate are fixedly connected with the two sides of the semi-cylindrical groove, the bottom of the rectangular vertical bar is fixedly connected with a cylinder, the right side of the cylinder is provided with a small circular hole, the inner wall of the small circular hole is provided with a circle of threads, the small circular hole is provided with a first T-shaped handle, the surface of a rotating shaft of the first T-shaped handle is provided with a circle of threads, the threads on the inner wall of the small circular hole are matched with the threads on the surface of the first T-shaped handle, the, a small circular hole is formed in the right side of the cylinder, a circle of threads are arranged on the inner wall of the small circular hole, a second T-shaped handle is arranged in the small circular hole, a circle of threads are arranged on the surface of a rotating shaft of the second T-shaped handle, the threads on the inner wall of the small circular hole are matched with the threads on the surface of the second T-shaped handle, and the rotating shaft of the second T-shaped handle is connected with the small circular hole through the threads.

Preferably, the lower end of the left surface of the rectangular rod is connected with the inner wall of the rectangular groove of the rectangular vertical rod through a hidden buckle.

Preferably, the upper end of the circular hole is provided with an arc-shaped label, and an angle value is carved on the arc-shaped label.

Preferably, the diameter of the inner ring of the spring is matched with that of the support rod, and the diameter of the outer ring of the spring is matched with that of the inner ring of the cylindrical groove.

(III) advantageous effects

Compared with the prior art, the utility model provides a teacher's pointer that facilitates use possesses following beneficial effect:

1. this teacher's pointer that facilitates use, be provided with a rectangular pole through the rectangle recess, the left surface lower extreme of rectangular pole links together through the hidden discount with the rectangle recess inner wall of rectangle montant, the embedding of rectangular pole is in the rectangle recess of rectangle montant, a round bar of upper end fixed connection of rectangular pole, the centre department of round bar is provided with an arrow point, the round piece is all projected at the both ends of round bar, a circular hole has all been opened to two sides upper end around the rectangle montant, the upper end of circular hole is provided with convex label, be carved with the angle value on the convex label, just so can be at will and accurate regulation rectangular pole and the contained angle size between the rectangle montant, just so convenient to use person draws the angle of wanting on the blackboard.

2. This teacher's pointer that facilitates use is provided with first T style of calligraphy handle through small circle shape hole, the pivot surface of first T style of calligraphy handle is provided with round screw thread, screw thread on the small circle shape hole inner wall is identical with the screw thread on first T style of calligraphy handle surface, the pivot of first T style of calligraphy handle passes through the screw thread and is connected with small circle shape hole, a drum is also fixedly connected to rectangular pole's bottom, open on the right side of drum has a little circular hole, be provided with round screw thread on the inner wall of little circular hole, small circle shape hole is provided with second T style of calligraphy handle, the pivot surface of second T style of calligraphy handle is provided with round screw thread, screw thread on the small circle shape hole inner wall is identical with the screw thread on second T style of calligraphy handle surface, the pivot of second T style of calligraphy handle passes through the screw thread and is connected with small circle shape hole, like this through rotatory first T style of calligraphy handle and second T style of calligraphy handle can respectively fix the chalk in the first drum of rectangular pole bottom and the second T style of In the cylinder, a circle can slide out of the blackboard by rotating the rectangular vertical rod by taking the bottom of the rectangular rod as a center.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a pointer convenient to use;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;

fig. 3 is a schematic structural view of the rectangular rod of fig. 1 according to the present invention.

In the figure: the handle comprises a handle 1, a rectangular vertical rod 2, a rectangular groove 3, a rectangular rod 4, an arc-shaped handle 5, a hidden buckle 6, a round rod 7, an arrow 8, a round block 9, a square groove 10, a semicircular plate 11, a pushing rod 12, a second cylinder 13, a bearing 14, a transverse rod 15, a semicircular groove 16, a first cylinder 17, a first T-shaped handle 18 and a second T-shaped handle 19.

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.

Referring to fig. 1-3, a pointer convenient to use comprises a handle 1, a rectangular vertical rod 2 is arranged at the lower end of the handle 1, the top of the rectangular vertical rod 2 is fixedly connected with the bottom of the handle 1, a rectangular groove 3 is recessed in the right side of the rectangular vertical rod 2, a rectangular rod 4 is arranged in the rectangular groove 3, an arc-shaped handle 5 is fixedly connected with the right bottom of the rectangular rod 4, the lower end of the left side of the rectangular rod 4 is connected with the inner wall of the rectangular groove 3 of the rectangular vertical rod 2 through a hidden buckle 6, the rectangular rod 4 is embedded in the rectangular groove 3 of the rectangular vertical rod 2, a round rod 7 is fixedly connected with the upper end of the rectangular rod 4, an arrow 8 is arranged in the middle of the round rod 7, a circle of round blocks 9 are protruded from the two ends of the round rod 7, and the upper ends of the front and back sides of the rectangular vertical rod 2, the upper end of the round hole is provided with an arc-shaped label, an angle value is carved on the arc-shaped label, round grooves are arranged on two sides inside the rectangular groove 3, the central point of the round groove corresponds to the central point of the round hole, the diameter of the round rod 7 is matched with the size of the round hole, the size of the round groove in the round hole is matched with the size of the round block 9 protruding from the surface of the two ends of the round rod 7, the two ends of the round rod 7 are respectively arranged in the round hole of the rectangular vertical rod 2, the round blocks 9 protruding from the two ends of the round rod 7 are embedded in the semicircular grooves in the round hole of the rectangular vertical rod 2, the bottom of the rectangular rod 4 is pulled out from the rectangular groove 3 by pulling the arc-shaped handle 5, an included angle is formed between the top of the rectangular rod 4 and the top of the rectangular vertical rod 2, and the size of the included angle is accurately known through an arrow, a square groove 10 is concavely arranged at the upper end of the front surface of the rectangular vertical rod 2, the square groove 10 is positioned under the circular hole, a semicircular plate 11 is arranged in the square groove 10, the diameter of the semicircular plate 11 is one centimeter larger than that of the circular rod 7, the inner ring of the semicircular plate 11 can just wrap a small section of the circular rod 7 exposed from the circular hole by one half, a semicircular groove is concavely arranged at the bottom of the square groove 10, a push rod 12 is arranged in the semicircular groove, the top of the push rod 12 is provided with a bearing 14, the inner ring of the bearing 14 is fixedly connected with the top of the push rod 12, the outer ring of the bearing 14 is fixedly connected with the bottom of the semicircular plate 11, the bottom of the push rod 12 is fixedly connected with a cross rod 15, a semicircular groove 16 is concavely arranged on the inner wall of the right side of the semicircular groove, the size of the semicircular groove 16 is consistent with that of the cross rod 15, the upper end of the semicircular groove 16 on, the left end of another semi-cylindrical groove 16 is communicated with the left side of the cylindrical groove, a baffle is arranged in the middle and at the bottom of the semi-cylindrical groove, the shape of the baffle is arc-shaped, the two sides of the baffle are fixedly connected with the two sides of the semi-cylindrical groove, the pushing rod is driven to move upwards through the upward movement of the cross rod 15, the pushing rod can make the semi-circular plate 11 cling to the outer ring of the round rod 7, then the cross rod 15 is rotated into the semi-cylindrical groove 16, so that the included angle between the rectangular rod 4 and the rectangular vertical rod 2 can be fixed, the bottom of the rectangular vertical rod 2 is fixedly connected with a first cylinder 17, the right side of the first cylinder 17 is provided with a small circular hole, the inner wall of the small circular hole is provided with a circle of thread, the small circular hole is provided with a first T-shaped handle 18, the surface of the rotating shaft of the first T-, the screw thread on the inner wall of the small round hole is matched with the screw thread on the surface of the first T-shaped handle 18, the rotating shaft of the first T-shaped handle 18 is connected with the small round hole through the screw thread, the bottom of the rectangular rod 4 is fixedly connected with the second cylinder 13, the right side of the second cylinder 13 is provided with the small round hole, the inner wall of the small round hole is provided with a circle of screw thread, the small round hole is provided with the second T-shaped handle 19, the surface of the rotating shaft of the second T-shaped handle 19 is provided with a circle of screw thread, the screw thread on the inner wall of the small round hole is matched with the screw thread on the surface of the second T-shaped handle 19, the rotating shaft of the second T-shaped handle 19 is connected with the small round hole through, the chalk is fixed in the first cylinder 17 at the bottom of the rectangular rod 4 and the second cylinder 13 at the bottom of the rectangular vertical rod 2 by rotating the first T-shaped handle 18 and the second T-shaped handle 19 respectively.

When in use, the utility model is used,

the first step is as follows: a rectangular rod 4 is arranged in a rectangular groove 3, the lower end of the left side of the rectangular rod 4 is connected with the inner wall of the rectangular groove 3 of a rectangular vertical rod 2 through a hidden buckle 6, the rectangular rod 4 is embedded in the rectangular groove 3 of the rectangular vertical rod 2, the upper end of the rectangular rod 4 is fixedly connected with a round rod 7, an arrow 8 is arranged in the middle of the round rod 7, two ends of the round rod 7 are respectively protruded with a round block 9, the upper ends of the front and back sides of the rectangular vertical rod 2 are respectively provided with a round hole, the upper end of the round hole is provided with an arc-shaped label, an angle value is carved on the arc-shaped label, thus the size of an included angle between the rectangular rod 4 and the rectangular vertical rod 2 can be adjusted randomly and accurately, when a cross rod 15 moves upwards, the push rod can be driven to move upwards, the semicircular plate 11 can be tightly attached to the outer ring of the round rod, the cross rod 15 is rotated into the semi-cylindrical groove 16, so that the included angle between the rectangular rod 4 and the rectangular vertical rod 2 can be fixed.

The second step is that: the chalk can be fixed in the cylinder 17 at the bottom of the rectangular rod 4 and the cylinder 17 at the bottom of the rectangular vertical rod 2 respectively by rotating the first T-shaped handle 18 and the second T-shaped handle 19, and a circle can slide out of the blackboard by rotating the rectangular vertical rod 2 by taking the bottom of the rectangular rod 4 as a center.

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 teacher's pointer that facilitates use, including handle (1), the lower extreme of handle (1) is provided with a rectangle montant (2), the top of rectangle montant (2) is in the same place with the bottom fixed connection of handle (1), rectangle recess (3) of the right side indent of rectangle montant (2), be provided with a rectangular pole (4) in rectangle recess (3), arc handle (5) of right side bottom fixed connection of rectangular pole (4), the left side lower extreme of rectangular pole (4) links together through hidden discount (6) with rectangle recess (3) inner wall of rectangle montant (2), rectangular pole (4) imbeds in rectangle recess (3) of rectangle montant (2), its characterized in that: a round bar (7) of upper end fixed connection of rectangular pole (4), the centre department of round bar (7) is provided with an arrow point (8), round piece (9) all bulge round in the both ends of round bar (7), both sides upper end is run through by circular hole around rectangular pole (2), the upper end of circular hole is provided with convex label, be carved with the angle value on the convex label, circular recess has been seted up to the inside both sides of rectangular recess (3), the central point of circular recess corresponds with the central point of circular hole, the diameter size of round bar (7) is identical with the size of circular hole, semicircular groove size in the circular hole is identical with round piece (9) size of round bar (7) both ends surface bellied, the both ends of round bar (7) are respectively in the circular hole of rectangular pole (2).

2. A pointer as defined in claim 1, adapted to be used with a user's hand, comprising: the round block (9) with the two convex ends of the round rod (7) is embedded into a semicircular groove in a circular hole of the rectangular vertical rod (2), a square groove (10) is arranged at the upper front end of the rectangular vertical rod (2) in an inwards concave mode, the square groove (10) is located right below the circular hole, and a semicircular plate (11) is arranged in the square groove (10).

3. A pointer for convenient use as claimed in claim 2 wherein: the diameter size of semicircle board (11) is bigger than the diameter size of round bar (7) by one centimetre, and the inner circle of semicircle board (11) just can wrap up a lesson that round bar (7) expose from circular hole and live half, and the concave semicircular groove in bottom of square groove (10) is provided with a propulsion pole (12) in the semicircular groove.

4. A pointer for convenient use as claimed in claim 3 wherein: the top of the pushing rod (12) is provided with a bearing (14), the inner ring of the bearing (14) is fixedly connected with the top of the pushing rod (12), and the outer ring of the bearing (14) is fixedly connected with the bottom of the semicircular plate (11).

5. A pointer for convenient use as claimed in claim 3 wherein: the bottom fixed connection of pushing ram (12) is a horizontal pole (15), semicircle column groove (16) of indent on the inner wall of semicircle groove right side, the size of semicircle column groove (16) accords with the size of horizontal pole (15), another semicircle column groove (16) has been seted up to the upper end of semicircle column groove (16) on the rectangle montant, the left end and the left side of cylindrical recess of another semicircle column groove (16) communicate with each other, semicircle groove's centre and bottom are provided with a baffle, the shape condition of baffle sets up to arc, the both sides of baffle and semicircle groove's both sides fixed connection are in the same place, a first drum (17) of bottom fixed connection of rectangle montant (2).

6. A pointer for convenient use as claimed in claim 5 wherein: the right side of the first cylinder (17) is provided with a small round hole, the inner wall of the small round hole is provided with a circle of threads, the small round hole is provided with a first T-shaped handle (18), the surface of a rotating shaft of the first T-shaped handle (18) is provided with a circle of threads, the threads on the inner wall of the small round hole are matched with the threads on the surface of the first T-shaped handle (18), the rotating shaft of the first T-shaped handle (18) is connected with the small round hole through the threads, the bottom of the rectangular rod (4) is fixedly connected with a second cylinder (13), the right side of the second cylinder (13) is provided with a small round hole, the inner wall of the small round hole is provided with a circle of threads, the small round hole is provided with a second T-shaped handle (19), the surface of the rotating shaft of the second T-shaped handle (19) is provided with a circle of threads, the threads on the inner wall of the small round hole are matched with the threads on the surface of, the rotating shaft of the second T-shaped handle (19) is connected with the small round hole through threads.