CN212889621U

CN212889621U - Compasses with compasses head locking device

Info

Publication number: CN212889621U
Application number: CN202021168253.7U
Authority: CN
Inventors: 李�杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-04-06
Anticipated expiration: 2030-06-22

Abstract

The utility model provides a compasses with compasses head locking device, include: the top ends of the positioning gauge foot and the rotating gauge foot are rotationally connected through a compass rotary head; the compasses turn round and be provided with locking device, locking device arranges the upper end of location rule foot and rotatory rule foot in through the locking kicking block, and locking device includes the locking knob, and the locking knob rotates the setting in the upper end that the compasses turned round, and the top of locking kicking block is arranged in to the lower extreme of locking knob, and first logical groove has been seted up to the upper end that the compasses turned round, and first logical inslot is arranged in to the upper end of locking kicking block. The utility model relates to a compasses with compasses head locking device has and turns round to the compasses and realize the locking function, prevents that the rule foot from taking place not hard up phenomenon, and the result of use of compasses is better, holistic simple structure, user operation simple to use.

Description

Compasses with compasses head locking device

Technical Field

The utility model relates to a stationery field, in particular to compasses with compasses head locking device.

Background

The compasses are used for drawing circles or strings in mathematics and drawing, are commonly used for drawing rulers and compasses, are used as learning tools, are used by students, and have one of important functions on the safety of the compasses, the compasses can draw only by separating a positioning compass foot from a rotating compass foot at a certain angle when in use, and then the traditional compasses can loose the compass foot when being pulled, so that irregular circle drawing is easy to generate when in use; in addition, most of the existing compasses adopt a traditional fixing mode, influence is generated on the diameter of a drawing circle, and the compasses cannot play a fixing role well, so that the using effect of the compasses is greatly reduced when the compasses are used.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The to-be-solved technical problem of the utility model is to provide a compasses with compasses head locking device to overcome its compasses head of current compasses and can not lock and the poor defect of drawing effect.

(II) technical scheme

In order to solve the technical problem, the utility model discloses a compasses with compasses head locking device, include: the compasses comprise a positioning ruler foot and a rotating ruler foot, wherein the top ends of the positioning ruler foot and the rotating ruler foot are rotationally connected through a compass rotary head; the compasses turn round and be provided with locking device, locking device arranges in through the locking kicking block location compasses foot and the upper end of rotatory compasses foot, locking device includes the locking knob, the locking knob rotates the setting and is in the upper end that the compasses turned round, the locking knob with the compasses turn round threaded connection, the locking knob adopts the riveting technology for holistic structure is more fastened, the lower extreme of locking knob is arranged in the top of locking kicking block adopts this structure to utilize the rotation of locking knob to make the locking kicking block compress tightly location compasses foot and rotatory compasses foot, realizes the locking function of compasses, holistic simple structure, and the locking knob easy operation who sets up can play the locking effect for the compasses can avoid not hard up phenomenon under the state of pulling open at the compasses foot, makes the result of use of compasses better.

Further, first logical groove has been seted up to the upper end that the compasses turned round, the upper end of locking kicking block is arranged in first logical inslot, the location compasses foot with be provided with the setting element between the rotatory compasses foot, the upper end of setting element is upwards protruding to be formed with the locating lever, and the setting of this structure can make the rotation of location compasses foot and rotatory compasses foot more stable, and the setting element and the locating lever of setting play spacing fixed action, improve inner structure's fastening nature.

Further, set up on the locking kicking block with the locating hole that the locating lever corresponds, the locating lever is arranged in the locating hole, the locking kicking block includes: stopper and compact heap, the stopper is arranged in the upper end of compact heap, the stopper is arranged in first logical inslot, the lower extreme of compact heap is provided with and is used for compressing tightly location rule foot with the arc portion of rotatory rule foot utilizes the stopper with the structure setting of compact heap can make the better locking effect of realizing to the rule foot of locking kicking block, prevents to produce not hard up the normal use that the phenomenon influences the compasses.

Further, the lower extreme slidable mounting of location rule foot has the steel needle visor, the spout has been seted up to the lower extreme of location rule foot, the inboard of steel needle visor is provided with the slider, the slider is arranged in on the spout, one side of spout seted up with the second that the slider corresponds leads to the groove, sets up the steel needle visor and can play the guard action to the steel needle, utilizes the setting up of spout to make things convenient for the use of taking to the steel visor, holistic simple structure.

(III) advantageous effects

The utility model relates to a compasses with compasses head locking device lies in for prior art's advantage: the locking function that has the compasses head can realize compressing tightly the locking to location compasses foot and rotatory compasses foot when the compasses use, makes the result of use of compasses better, and it is through being provided with locking kicking block and locking knob, realizes the locking effect, and the locking knob adopts the riveting technology to make inside structure more fastening, is provided with the steel needle visor through the lower extreme at the compasses in addition, can play the guard action, holistic simple structure to the steel needle.

Drawings

FIG. 1 is a perspective view of a compass with a locking device for a compass head according to the present invention;

FIG. 2 is an exploded view of the compasses with the locking device of the compasses head of the present invention;

fig. 3 is a schematic structural view of a locking top block with a locking device of a compass head of the present invention;

FIG. 4 is a schematic structural view of a compass rotor with a compass head locking device of the present invention;

FIG. 5 is a schematic structural view of a steel needle protective cover with a locking device of a compass head according to the present invention;

wherein: 1 is a positioning gauge foot, 101 is a sliding groove, 102 is a second through groove, 2 is a rotating gauge foot, 3 is a compass rotary head, 301 is a first through groove, 4 is a locking device, 401 is a locking ejector block, 402 is a locking knob, 5 is a positioning piece, 501 is a positioning rod, 6 is a limiting block, 7 is a pressing block, 701 is an arc part, 8 is a positioning hole, 9 is a steel needle protective cover, and 901 is a sliding block.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 5, a compass having a locking device of a compass head includes: the top ends of the positioning gauge foot 1 and the rotating gauge foot 2 are rotatably connected through a compass rotary head 3; be provided with locking device 4 on the compasses commentaries on classics 3, locking device 4 arranges the upper end of location compasses foot 1 and rotatory compasses foot 2 in through locking kicking block 401, locking device 4 includes locking knob 402, locking knob 402 rotates the upper end that sets up at the compasses commentaries on classics 3, the top of locking kicking block 401 is arranged in to the lower extreme of locking knob 402, wherein, locking knob 402 turns round 3 threaded connection with the compasses, first logical groove 301 has been seted up to the upper end that the compasses turned round 3, first logical inslot 301 is arranged in to the upper end of locking kicking block 401, and is concrete: when compressing tightly the compasses, rotate location compasses foot 1 and rotatory compasses foot 2 to the required angle of drawing, rotate the locking knob 402 of 3 tops of compasses bull nose, the lower extreme of locking knob 402 supports and leans on locking kicking block 401, along with the continuous decurrent rotation of locking knob 402, the lower extreme of locking kicking block 401 compresses tightly the upper end of location compasses foot 1 and rotatory compasses foot 2, the realization is to the rotation locking of location compasses foot 1 and rotatory compasses foot 2, can use the compasses to draw this moment, its result of use is better, the not hard up phenomenon can not take place for location compasses foot 1 and rotatory compasses foot 2, and holistic simple structure, it is more convenient to operate and use.

Referring to fig. 2, fig. 3 and fig. 4, be provided with setting element 5 between location gauge foot 1 and the rotatory gauge foot 2, the upper end of setting element 5 makes progress the arch and is formed with locating lever 501, has seted up the locating hole 8 that corresponds with locating lever 501 on the locking kicking block 401, and in locating hole 8 was arranged in to locating lever 501, locking kicking block 401 included: stopper 6 and compact heap 7, the upper end of compact heap 7 is arranged in to stopper 6, stopper 6 is arranged in first logical inslot 301, the lower extreme of compact heap 7 is provided with the arc portion 701 that is used for compressing tightly location rule foot 1 and rotatory rule foot 2, it is concrete, locating lever 501 can make the setting element fixed set up between location rule foot 1 and rotatory rule foot 2 with the cooperation setting of locating hole 8, make inside structure more firm, utilize stopper 6 to arrange the normal use that influences the compasses locking such as can avoid the emergence dislocation of locking kicking block 401 and drop in first logical inslot 301 simultaneously, holistic simple structure, the compasses result of use is better.

Referring to fig. 2 and 5, the lower end of the positioning gauge foot 1 is slidably provided with a steel needle protection cover 9, the lower end of the positioning gauge foot 1 is provided with a sliding groove 101, the inner side of the steel needle protection cover 9 is provided with a sliding block 901, the sliding block 901 is arranged on the sliding groove 101, one side of the sliding groove 101 is provided with a second through groove 102 corresponding to the sliding block 901, the steel needle protection cover 9 is used for protecting the steel needle 9, the steel needle protection cover can slide on the sliding groove 101 and the second through groove 102, the operation and the use are convenient, the internal structure is simple, and the occupied space is small.

This embodiment compasses with compasses head locking device is through being provided with locking knob and locking kicking block, realize the locking function to compasses rule foot, can avoid the rule foot to take place not hard up phenomenon and influence the normal use of compasses effectively, the locking knob passes through threaded connection to be installed on the compasses turn round in addition, adopt the riveting technology to make holistic structure more fastening, difficult not hard up and drop, it can play certain guard action to be provided with the steel needle visor in the one end of compasses at last, the life of extension compasses.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A compass having a compass head locking device, comprising: the compasses comprise a positioning ruler foot (1) and a rotating ruler foot (2), wherein the top ends of the positioning ruler foot (1) and the rotating ruler foot (2) are rotatably connected through a compasses rotating head (3); the compasses are turned round and are provided with locking device (4) on (3), locking device (4) are arranged in through locking kicking block (401) location compasses foot (1) and the upper end of rotatory compasses foot (2), locking device (4) are including locking knob (402), locking knob (402) are rotated and are set up the upper end of compasses turn round (3), the lower extreme of locking knob (402) is arranged in the top of locking kicking block (401).

2. The compass with compasses head-locking device according to claim 1, characterized in that the locking knob (402) is screwed to the compass head (3).

3. The compasses with the locking device of compasses head according to claim 1, wherein a first through groove (301) is opened at the upper end of said compasses rotating head (3), and the upper end of said locking top block (401) is placed in said first through groove (301).

4. The compasses with compasses head-locking device according to claim 3, characterized in that a positioning piece (5) is provided between said positioning compass foot (1) and said rotary compass foot (2), and a positioning rod (501) is formed at the upper end of said positioning piece (5) in an upward protruding manner.

5. The compasses with compasses head-locking device according to claim 4, wherein said locking top block (401) has a positioning hole (8) corresponding to said positioning rod (501), and said positioning rod (501) is disposed in said positioning hole (8).

6. The compass having a compass head locking device according to claim 4, wherein the locking top block (401) includes: stopper (6) and compact heap (7), stopper (6) are arranged in the upper end of compact heap (7), stopper (6) are arranged in first logical groove (301), the lower extreme of compact heap (7) is provided with and is used for compressing tightly location gauge foot (1) with arc portion (701) of rotatory gauge foot (2).

7. The compasses with locking device of compasses head according to claim 1, characterized in that the lower end of the positioning compass foot (1) is slidingly mounted with a steel needle protective cap (9).

8. The compasses with locking device of compasses head according to claim 7, characterized in that the lower end of said positioning compass foot (1) is provided with a slide groove (101), the inside of said steel needle protective cover (9) is provided with a slide block (901), said slide block (901) is placed on said slide groove (101).

9. The compasses with locking device of compasses head according to claim 8, characterized in that one side of said slide groove (101) is provided with a second through groove (102) corresponding to said slide block (901).