CN218054665U - Compasses - Google Patents

Abstract

The utility model relates to a compasses, including the handle and respectively with handle looks articulated plumule landing leg, steel needle landing leg, be provided with the pilot pin on the steel needle landing leg, still include the cylinder, the cylinder end is provided with the through-hole, be provided with actuating mechanism in the cylinder, actuating mechanism includes pressing down subassembly, carriage release lever and spring, the pilot pin sets up the end at the carriage release lever, pressing down the subassembly setting for the pilot pin other end at the carriage release lever, the periphery at the pilot pin is established to the spring housing, spring one end and carriage release lever looks butt, the spring other end and cylinder bottom inner wall looks butt, pressing down the subassembly and driving the carriage release lever and making the flexible control pilot pin of spring retract or stretch out along through-hole position. The utility model discloses technical scheme has convenient operation, practicality and the technological effect of eliminating the potential safety hazard that the pilot pin leaked when not using.

Description

Compasses

Technical Field

The utility model belongs to the technical field of drawing tool's technique and specifically relates to a compasses.

Background

Compasses are used for drawing circles or strings in mathematical geometry and drawing, and are commonly used for drawing rulers and compasses. The compasses have two feet, the upper end is articulated, the lower extreme can be separated or fold at will to the size of adjustment circular arc radius of drawing. The tail end of one foot is a positioning needle, and the tail end of the other foot can be filled with a foot for drawing pencil lines or ink lines.

At present, in the in-service use process, because the pilot pin leaks outward for a long time, injure people easily during the use, still can lead to the needle point passivation because of careless dropping, the gliding phenomenon appears in the paper face easily to influence operator and use experience and drawing the circle precision. The positioning needle of the compasses in the prior art is protected by the protective sleeve, but the protective sleeve is easy to lose and is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

Based on the problem, the utility model provides a convenient operation, practicality are strong and eliminate the compasses of the potential safety hazard that the pilot pin leaked when not using.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a compasses, includes the handle and respectively with handle looks articulated plumule landing leg, steel needle landing leg, be provided with the pilot pin on the steel needle landing leg, still include the cylinder, the cylinder end is provided with the through-hole, be provided with actuating mechanism in the cylinder, actuating mechanism includes pressing down subassembly, carriage release lever and spring, the pilot pin sets up the end at the carriage release lever, pressing down the subassembly setting for the pilot pin other end at the carriage release lever, the periphery at the pilot pin is established to the spring housing, spring one end and carriage release lever looks butt, the spring other end and cylinder bottom inner wall looks butt, pressing down the subassembly and driving the carriage release lever and making the flexible control pilot pin of spring retract or stretch out along the through-hole position.

Through adopting above-mentioned technical scheme, the setting of pressing down subassembly, carriage release lever and spring, when needs use the pilot pin, press down the subassembly and drive the carriage release lever and remove for the cover is established at the spring of pilot pin periphery, presses down the compression through the carriage release lever, and at this moment, the pilot pin stretches out along the through-hole position, and when need not use the pilot pin, drives the carriage release lever through pressing down the subassembly and makes the spring reset, the pilot pin is along the through-hole position withdrawal and is put into the cylinder in, eliminates the potential safety hazard that the pilot pin leaked when not using, convenient operation, the practicality is strong.

The utility model discloses further set up: the pressing assembly comprises a guide sleeve fixedly arranged in the needle cylinder, a movable block arranged in the guide sleeve and an operating rod driving the movable block to move, a guide block arranged in the circumferential direction is arranged on the inner wall of the guide sleeve, a guide groove is formed between two adjacent guide blocks, a guide surface inclining downwards in the circumferential direction of the guide sleeve is arranged on the bottom surface of the guide block, a stop block is arranged on the lowest side, located on the guide surface, of the bottom of the guide block, a sliding block matched with the guide groove is arranged on the outer wall of the movable block, an inclined plane matched with the guide surface is arranged on the end face, facing one side of the operating rod, of the sliding block, a push block matched with the guide groove is arranged at the bottom end of the operating rod, and a push groove matched with the push block is arranged on one side, facing the central axis direction of the guide sleeve, of the guide block.

By adopting the above technical scheme, when needs use the pilot pin, through pressing the action bars, the action bars drives the downward displacement of movable block, inclined plane and the cooperation of spigot surface on the movable block, make the movable block take place to rotate, block through the dog, prevent that the movable block from continuing to rotate, movable block drive carriage release lever downward displacement, make the spring compression, offset through slider top and guide block bottom surface, prevent that the carriage release lever from upwards displacing to reset, the carriage release lever downward displacement drive pilot pin stretches out along the through-hole position, when the pilot pin is accomodate, through pressing the action bars once more, cooperate with the release groove through the ejector pad, push away the guide block with the movable block, through the inclined plane cooperation of ejector pad and slider top, make the movable block rotate to slider and guide groove and correspond, through the elastic force of spring, control the carriage release lever upwards displacement, drive the movable block upwards displacement, the slider slides in the guide groove, realize the restoration of carriage release lever, the pilot pin retracts along the through-hole position, can be convenient for the ejector pad ejecting from the slider from the spigot surface through setting up, thereby the utility model discloses a convenience, through setting up the compact displacement of the pilot pin, the improvement of the reliability of the utility model, thereby the utility model and the improvement of the utility model discloses a reliability of the utility model.

The utility model discloses further set up: the movable block is provided with a groove towards one side of the movable rod, and a convex block matched with the groove is arranged at the position, corresponding to the groove, of the movable rod.

Through adopting above-mentioned technical scheme, the cooperation of recess and lug, the location installation between the movable block of being convenient for and the carriage release lever also can reduce the frictional force between movable block and the carriage release lever when the movable block rotates simultaneously, prolongs life between them, has improved the utility model discloses a reliability.

The utility model discloses further set up: and the top of the operating rod is provided with a pressing cover which is in linkage fit with the operating rod.

Through adopting above-mentioned technical scheme, the setting of press cover increases the area of pressing of action bars for the operator is when pressing the operation, and is more convenient, laborsaving.

The utility model discloses further set up: a through groove is formed in one side of the pressing cover, and a guide convex portion matched with the through groove is arranged at the position, corresponding to the through groove, of the steel needle supporting leg.

Through adopting above-mentioned technical scheme, lead to the setting of groove and direction convex part, play the effect of removal direction, when the press cap was pressed through the operator, the press cap was through leading to groove along direction convex part position axial displacement, and the structure is more stable.

Drawings

FIG. 1 is an exploded view of the structure of an embodiment of the present invention;

FIG. 2 is an enlarged view of the portion A of FIG. 1;

fig. 3 is an exploded view of a portion of an embodiment of the present invention;

fig. 4 is a sectional view of the structure of the guide sleeve in the embodiment of the present invention;

fig. 5 is a schematic overall structure diagram of an embodiment of the present invention;

the reference numbers in the figures mean: 1-handle, 2-lead leg, 3-steel leg, 3-positioning needle, 4-needle cylinder, 5-through hole, 6-driving mechanism, 601-pressing component, 6011-guide sleeve, 6012-movable block, 6013-operating rod, 602-movable rod, 603-spring, 7-guide block, 8-guide groove, 9-guide surface, 10-stop block, 11-slide block, 12-inclined surface, 13-push block, 14-push groove, 15-groove, 16-lug, 17-pressing cover, 18-through groove, 19-guide convex part and 20-opening.

Detailed Description

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Referring to the accompanying drawings 1-5, the utility model discloses a compasses, including handle 1 and respectively with handle 1 looks articulated lead core landing leg 2, steel needle landing leg 3, be provided with pilot pin 3 on the steel needle landing leg 3, still include the cylinder 4, 4 ends of cylinder are provided with through-hole 5, be provided with actuating mechanism 6 in the cylinder 4, actuating mechanism 6 includes pressing component 601, carriage release lever 602 and spring 603, pilot pin 3 sets up the end at carriage release lever 602, pressing component 601 sets up the 3 other ends for the pilot pin at carriage release lever 602, the periphery at pilot pin 3 is established to spring 603 cover, spring 603 one end and carriage release lever 602 looks butt, the spring 603 other end and 4 bottom inner wall looks butts of cylinder, pressing component 601 drives carriage release lever 602 and makes the flexible control pilot pin 3 of spring 603 along through-hole 5 position withdrawal or stretch out. The setting of pressing down subassembly 601, carriage release lever 602 and spring 603, when needs use pilot pin 3, press down subassembly 601 and drive the carriage release lever 602 and remove for the cover is established at the spring 603 of 3 peripheries of pilot pin, presses down the compression through carriage release lever 602, and at this moment, pilot pin 3 stretches out along through-hole 5 position, and when need not use pilot pin 3, drives carriage release lever 602 through pressing down subassembly 601 and makes spring 603 reset, in needle 3 is put into along through-hole 5 position withdrawal cylinder 4 to the pilot pin, eliminates the potential safety hazard of pilot pin 3 outer hourglass when not using, convenient operation, and the practicality is strong.

The embodiment further provides that: the pressing assembly 601 comprises a guide sleeve 6011 fixedly arranged in the needle cylinder 4, a movable block 6012 arranged in the guide sleeve 6011 and an operating rod 6013 driving the movable block 6012 to move, guide blocks 7 arranged in the circumferential direction are arranged on the inner wall of the guide sleeve 6011, a guide groove 8 is formed between every two adjacent guide blocks 7, a guide surface 9 inclining downwards relative to the circumferential direction of the guide sleeve 6011 is arranged on the bottom surface of each guide block 7, a stop block 10 is arranged at the lowest side, located at the bottom of each guide surface 9, of each guide block 7, a sliding block 11 matched with the corresponding guide groove 8 is arranged on the outer wall of each movable block 6012, an inclined surface 12 matched with the corresponding guide surface 9 is arranged on the end surface of each sliding block 11 facing one side of the corresponding operating rod 6013, a push block 13 matched with the corresponding guide groove 8 is arranged at the bottom end of the operating rod 6013, and a push groove 14 matched with the corresponding push block 13 is arranged on one side, facing the central axis of the guide sleeve 6011, of the corresponding guide block 7. When the positioning pin 3 needs to be used, the operating rod 6013 is pressed, the operating rod 6013 drives the movable block 6012 to displace downward, the inclined surface 12 on the movable block 6012 is matched with the guide surface 9, the movable block 6012 rotates, the stopper 10 stops the movable block 6012 and prevents the movable block 6012 from continuing to rotate, the movable block 6012 drives the movable rod 602 to displace downward, the spring 603 compresses, the top of the slider 11 abuts against the bottom surface of the guide block 7, the movable block 6012 is prevented from displacing upward and resetting, the movable rod 602 displaces downward and drives the positioning pin 3 to extend out along the position of the through hole 5, when the positioning pin 3 is stored, the operating rod 6013 is pressed again, the push block 13 is matched with the push groove 14 to push the movable block 6012 away from the guide block 7, the push block 13 is matched with the inclined surface 12 on the top of the slider 11, the movable block 6012 rotates to the slider 11 and corresponds to the guide groove 8, the elastic force of the spring 603 controls the movable rod 602 to displace upward to drive the movable block 6012 to displace upward, the slide 11 into the guide groove 8, the slider 11 slides into the guide groove 8, the push block 6013 is convenient and the push groove, the push block can improve the reliability of the push block 601, and the push stability of the push structure, and the push structure can be conveniently and the push stability of the push structure is improved.

The embodiment further provides that: a groove 15 is formed in one side, facing the moving rod 602, of the moving block 6012, and a protrusion 16, which is matched with the groove 15, is formed in a position, corresponding to the groove 15, of the moving rod 602. The matching of the groove 15 and the bump 16 facilitates the positioning and installation between the movable block 6012 and the moving rod 602, and simultaneously, when the movable block 6012 rotates, the friction force between the movable block 6012 and the moving rod 602 is reduced, the service lives of the two are prolonged, and the reliability of the embodiment is improved.

The embodiment further provides that: the top of the operating rod 6013 is provided with a pressing cover 17 which is in linkage fit with the operating rod 6013. The pressing cover 17 is arranged to increase the pressing area of the operating rod 6013, so that the operator can press the operating rod more conveniently and more labor-saving.

The embodiment further provides that: a through groove 18 is formed in one side of the pressing cover 17, and a guide convex part 19 matched with the through groove 18 is arranged at the position, corresponding to the through groove 18, of the steel needle supporting leg 3. The through groove 18 and the guide convex part 19 are arranged to play a role of moving and guiding, when the pressing cover 17 is pressed by an operator, the pressing cover 17 axially moves along the position of the guide convex part 19 through the through groove 18, and the structure is more stable. In this embodiment, the through slot 18 preferably has an opening 20, the opening 20 is oriented toward the orientation pin 3, and the pressing cover 17 is inserted into the guiding protrusion 19 along the opening 20 of the through slot 18 to play a role of pressing, moving and guiding, and is easy to assemble and disassemble.

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

Claims (5)

1. The utility model provides a compasses, includes the handle and respectively with handle looks articulated lead core landing leg, steel needle landing leg, be provided with pilot pin, its characterized in that on the steel needle landing leg: still include the cylinder, the cylinder end is provided with the through-hole, be provided with actuating mechanism in the cylinder, actuating mechanism includes pressing component, carriage release lever and spring, the pilot pin sets up the end at the carriage release lever, pressing component sets up at the carriage release lever for the pilot pin other end, the periphery at the pilot pin is established to the spring housing, spring one end and carriage release lever looks butt, the spring other end and cylinder bottom inner wall looks butt, pressing component drives the carriage release lever and makes the flexible control pilot pin of spring retract or stretch out along the through-hole position.

2. The compass according to claim 1, wherein: the utility model discloses a syringe, including the fixed uide bushing that sets up in the cylinder, press the subassembly including fixed setting, the action bars of setting the movable block and drive movable block displacement in the uide bushing, be equipped with the guide block that a plurality of circumference set up on the inner wall of uide bushing, form the guide way between the double-phase adjacent guide block, the bottom surface of guide block is equipped with the spigot surface of relative uide bushing circumference direction downward sloping, the guide block bottom is located the lowest side of spigot surface and is equipped with the dog, be equipped with on the outer wall of movable block with the guide way matched with slider, be equipped with on the terminal surface of slider towards action bars one side with spigot surface matched with inclined plane, the action bars bottom is equipped with the ejector pad with the guide way matched with, the guide block is equipped with and pushes out the groove with ejector pad matched with towards one side of uide bushing central axis direction.

3. The compass according to claim 2, wherein: the movable block is provided with a groove towards one side of the movable rod, and a protruding block matched with the groove is arranged at the position, corresponding to the groove, of the movable rod.

4. The compass according to claim 2, wherein: and the top of the operating rod is provided with a pressing cover which is in linkage fit with the operating rod.

5. The compass according to claim 4, wherein: press lid one side and be provided with logical groove, the steel needle landing leg corresponds logical groove position and is provided with the direction convex part that leads to groove looks adaptation.

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