CN219360711U - Rotating shaft connector of combined ruler - Google Patents

Abstract

The utility model discloses a rotating shaft connector of a combined ruler, which relates to the technical field of the ruler and comprises a first supporting leg and a second supporting leg, wherein the first supporting leg and the second supporting leg comprise a switching part and are connected in a circumferential rotating way through the switching part; the novel plastic bag further comprises a similar-mouth-shaped support and a second elastic piece, and a fixing block is arranged on the inner wall of one side of the similar-mouth-shaped support. The rotating shaft connector of the combined ruler provided by the utility model can rotate easily by pressing the button to rotate the second support leg when in use, and the second support leg is fixed by loosening the button after rotation, so that the rebound phenomenon of the second support leg can not occur when in use, and the rotating shaft connector is also convenient for teachers and students to use.

Description

Rotating shaft connector of combined ruler

Technical Field

The utility model relates to the technical field of a ruler, in particular to a rotating shaft connector of a combined ruler.

Background

The compass plays a very convenient role in teaching for teachers.

Reference is made to publication (bulletin) No.: CN207916382U, publication (date): 2018-09-28, the utility model is suitable for the technical field of teaching tools, and provides a multifunctional teaching compass, which comprises a first supporting leg and a second supporting leg, wherein the end parts of the first supporting leg and the second supporting leg are hinged through a ratchet mechanism; the ratchet mechanism comprises a ratchet, a plurality of ratchets and a locking pawl, wherein the ratchets are uniformly distributed along the circumferential direction of the ratchet, the ratchet is fixedly connected with a first supporting leg, the locking pawl is connected with a second supporting leg through a rotating shaft and a resetting piece, a reversing switch is further arranged on the second supporting leg, one end of the reversing switch is connected with the top end of the locking pawl, and the other end of the reversing switch is connected with the second supporting leg through the rotating shaft; the bottom ends of the first support leg and the second support leg are hollow structures, the bottom end of the first support leg is provided with a telescopic stitch, the bottom end of the second support leg is provided with a telescopic chalk clip, and the bottom ends of the first support leg and the second support leg are also provided with an adjusting screw cap; the opposite sides of the first support leg and the second support leg are provided with continuous linear scales. Therefore, the utility model is more beneficial to meeting the purpose of teaching use by changing the teaching compasses.

In the prior art comprising the above patent, the ratchet hinge mechanism used when the first supporting leg and the second supporting leg are opened by the compass is effectively processed, the supporting leg can be effectively prevented from rotating, and the teacher can more conveniently draw circles during teaching, so that the speed of drawing circles by the teacher is improved. However, the ratchet hinge mechanism can be limited in one direction, but the difficulty is high during rotation, and the support legs are difficult to combine, so that the rotating shaft structure of the ratchet hinge mechanism can be optimized when two support legs are combined, and the support legs can be easily combined.

Disclosure of Invention

The utility model aims to provide a rotating shaft connector of a combined ruler, which is used for solving the problems in the background technology.

In order to achieve the above object, the present utility model provides the following technical solutions: the rotary shaft connector of the combined ruler comprises a first support leg and a second support leg, wherein the first support leg and the second support leg comprise a switching part and are connected in a circumferential rotation mode through the switching part, a gear is fixedly arranged on the inner side of the switching part of the first support leg, a rotation controller is arranged on the inner side of the switching part of the second support leg, and the rotation controller comprises a clamping tongue pushed by a first elastic piece to be clamped in a gear tooth groove;

the novel tooth socket is characterized by further comprising a similar-mouth-shaped support and a second elastic piece, wherein a fixed block is arranged on the inner wall of one side of the similar-mouth-shaped support, and in the initial state of the second spring, the locking clamping tongue of the fixed block is kept clamped and fixed in the tooth socket of the gear.

Preferably, one end of the second support leg is axially and rotatably provided with a chalk clip.

Preferably, a stitch is fixedly arranged at one end of the first supporting leg, a first arc-shaped table is fixedly arranged at the side surface of the other end of the first supporting leg, and a handle is fixedly arranged at the top end of the first arc-shaped table.

Preferably, the rotation controller comprises a fixing support, the fixing support is fixedly arranged on the second supporting leg, the clamping tongue is slidably arranged on the concave structure of the fixing support, and the first elastic piece is fixedly arranged in the concave structure of the fixing support.

Preferably, the first elastic piece comprises a multi-section telescopic sleeve, a first spring is arranged in the multi-section telescopic sleeve, and a clamping tongue is fixedly connected to a head section sleeve of the multi-section telescopic sleeve.

Preferably, the clamping tongue is provided with a fixing opening, and the fixing opening is matched with the fixing block in a clamping way.

Preferably, blocking plates are symmetrically and fixedly arranged on the similar-mouth-shaped support.

Preferably, one end of the fixing support is of a concave structure, through holes are formed in two ends of the concave structure, a first elastic piece is arranged on the fixing support, a similar-mouth-shaped support is movably arranged in the through holes, and a second spring is fixedly arranged on one side of the blocking plate.

Preferably, the chalk clamp comprises a fixed cylinder, a fixing nut is spirally arranged on the side wall of the fixed cylinder, a second arc-shaped table is fixedly arranged at one end of the fixed cylinder, a connecting rod is fixedly connected with one end of the second arc-shaped table, and the connecting rod is axially and rotatably arranged on the second supporting leg.

In the technical scheme, the rotating shaft connector of the combined ruler provided by the utility model has the following beneficial effects: the gear and the rotation controller are utilized to fix and rotate the first support leg and the second support leg, the mouth-like support leg is pressed during use, the second support leg is rotated, the clamping tongue inside the second support leg is matched with the gear of the first support leg to rotate, the clamping tongue of the loose mouth-like support leg is fixedly clamped in the tooth slot of the gear to play a fixing role, the second support leg cannot rotate during use, the second support leg is identical to the steps during resetting, and a teacher can use the teaching conveniently.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic view of an embodiment of the present utility model;

FIG. 2 is a schematic view of a second leg structure according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a first leg according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a rotation controller according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a fixing bracket according to an embodiment of the present utility model;

FIG. 6 is a schematic structural view of a multi-section telescopic sleeve according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of a latch according to an embodiment of the present utility model;

FIG. 8 is a schematic structural view of a bracket shaped like a Chinese character 'kou' according to an embodiment of the present utility model;

fig. 9 is a schematic structural view of a chalk clip according to an embodiment of the utility model.

Reference numerals illustrate:

1. a first leg; 2. a second leg; 3. a chalk clip; 12. a gear; 14. a first arcuate stage; 15. a handle; 16. a stitch; 22. a rotation controller; 31. a connecting rod; 32. a second arcuate stage; 33. a fixing nut; 34. a fixed cylinder; 41. a fixed bracket; 42. a through hole; 44. a second spring; 51. a first elastic member; 52. a first spring; 53. a multi-section telescopic sleeve; 64. a blocking plate; 65. a fixed block; 66. a bracket shaped like a Chinese character 'kou'; 72. a clamping tongue; 74. and fixing the opening.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-9, a rotary shaft connector of a combination ruler comprises a first support leg 1 and a second support leg 2, wherein the first support leg 1 and the second support leg 2 comprise a switching part and are connected in a circumferential rotation manner through the switching part, a gear 12 is fixedly arranged at the inner side of the switching part of the first support leg 1, a rotary controller 22 is arranged at the inner side of the switching part of the second support leg 2, and the rotary controller 22 comprises a clamping tongue 72 pushed by a first elastic piece 51 to be clamped in a tooth socket of the gear 12;

the novel gear tooth socket comprises a gear tooth socket 12, and further comprises a similar-mouth-shaped bracket 66 and a second spring 44, wherein a fixed block 65 is arranged on the inner wall of one side of the similar-mouth-shaped bracket 66, and in the initial state of the second spring 44, a locking clamping tongue 72 of the fixed block 65 is kept clamped and fixed in the tooth socket of the gear tooth socket.

Specifically, when the first support leg 1 and the second support leg 2 rotate, the clamping tongue 72 of the rotation controller 22 in the second support leg 2 moves, the clamping tongue 72 releases the locking state of the clamping tongue 72 by pressing the notch-like bracket 66, the clamping tongue 72 moves along the outline of the gear 12 of the first support leg 1 under the pushing of the first elastic piece 51, the clamping tongue 72 reaches a designated position and is clamped in a tooth slot of the gear 12 to be fixed, and the clamping tongue 72 is clamped by the fixing block 65 after the notch-like bracket 66 is released to fix the second support leg 2.

In the above technical scheme, the gear 12 and the rotation controller 22 are utilized to fix and rotate the first support leg 1 and the second support leg 2, when in use, the second support leg 2 is rotated by pressing the similar-mouth-shaped support leg 66, the internal clamping tongue 72 of the second support leg 2 is matched with the gear 12 of the first support leg 1 to rotate, the clamping tongue 72 of the loose similar-mouth-shaped support leg 66 is fixedly clamped in the tooth slot of the gear 12 to play a fixed role, the second support leg 2 can not rotate when in use, and the second support leg 2 is reset in the same steps as the above steps, so that teachers can conveniently use the teaching.

As an embodiment of the present utility model, the second leg 2 is provided with a chalk clip 3 axially rotated at one end.

Further, a stitch 16 is fixedly installed at one end of the first support leg 1, a first arc-shaped table 14 is fixedly installed at the side surface of the other end of the first support leg 1, and a handle 15 is fixedly installed at the top end of the first arc-shaped table 14.

Still further, the chalk holder 3 comprises a fixed cylinder 34, a fixed nut 33 is spirally arranged on the side wall of the fixed cylinder 34, a second arc-shaped table 32 is fixedly arranged at one end of the fixed cylinder 34, a connecting rod 31 is fixedly connected to one end of the second arc-shaped table 32, and the connecting rod 31 is axially and rotatably arranged on the second support leg 2.

Specifically, the chalk holder 3 mounted on the second leg 2 fixes the chalk by rotating the fixing nut 33 after the chalk is put into the rear fixing cylinder 34, and the chalk holder 3 is rotated on the second leg 2 by the second arc table 32 and the connecting rod 31.

Simultaneously, the stitch 16 installed on the first support leg 1 plays a role in stabilizing in use, and the handle 15 installed on the top through the first arc-shaped table 14, the handle 15 can rotate the first support leg 1 and the second support leg 2.

As a further provided embodiment of the present utility model, the rotation controller 22 includes a fixing bracket 41, the fixing bracket 41 is fixedly mounted on the second leg 2, the clamping tongue 72 is slidably disposed on the concave structure of the fixing bracket 41, and the first elastic member 51 is fixedly disposed in the concave structure of the fixing bracket 41.

Further, the first elastic member 51 includes a multi-section telescopic sleeve 53, a first spring 52 is disposed in the multi-section telescopic sleeve 53, and a clamping tongue 72 is fixedly connected to a first section sleeve of the multi-section telescopic sleeve 53.

Specifically, the rotation controller 22 is mounted on the second leg 2, and the clamping tongue 72 of the rotation controller 22 slides in the concave structure of the fixing bracket 41;

meanwhile, since the multi-section telescopic sleeve 53 is composed of four sleeves which are nested one inside the other from the end to the end, and is kept axially telescopic by the first spring 52 which is built in.

As a further embodiment of the present utility model, the clamping tongue 72 is provided with a fixing opening 74, and the fixing opening 74 is engaged with the fixing block 65 in a clamping manner.

Further, blocking plates 64 are symmetrically and fixedly installed on the bracket 66 like a Chinese character 'kou'.

Furthermore, one end of the fixing support 41 is of a concave structure, through holes 42 are formed in two ends of the concave structure, the fixing support 41 is provided with a first elastic piece 51, a similar-mouth-shaped support 66 is movably arranged in the through holes 42, and a second spring 44 is fixedly arranged on one side of the blocking plate 64.

Specifically, the blocking plate 64 of the notch-like bracket 66 and the second spring 44 are disposed in the through hole 42 of the fixed bracket 41, and in the default state of the second spring 44, the notch-like bracket 66 and the fixed bracket 41 keep a fitting state, so that the fixed block 65 on the notch-like bracket 66 is clamped with the clamping tongue 72 pushed by the first elastic member 51 on the fixed bracket 41.

Working principle: the stitch 16 of the first support leg 1 is fixed at one end, the second support leg 2 is rotated while the notch-like support 66 is pressed down, the blocking plate 64 of the notch-like support 66 and the second spring 44 are pressed in the through hole 42, under the action of the pressing force of the second spring 44, the fixing block 65 of the notch-like support 66 is far away from the fixing opening 74 of the clamping tongue 72 on the rotation controller 22, the clamping tongue 72 is pushed down by the top of the first elastic piece 51 to slide along the slide way on the fixing support 41, the clamping tongue 72 is matched with the gear 12 on the first support leg 1, after the specified position is rotated, the clamping tongue 72 is clamped in the tooth groove of the gear 12, the notch-like support 66 is loosened, the fixing block 65 is clamped in the fixing opening 74 to fix the second support leg 2 when the second spring 44 returns to the initial state, after the chalk clip 3 of the second support leg 2 is adjusted, the fixing nut 33 of the chalk clip 3 is rotated, and the handle 15 is rotated to enable the first support leg 1 to be matched with the second support leg 2.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (9)

1. The rotary shaft connector of the combined ruler is characterized by comprising a first supporting leg (1) and a second supporting leg (2), wherein the first supporting leg (1) and the second supporting leg (2) both comprise a switching part and are connected in a circumferential rotation mode through the switching part, a gear (12) is fixedly arranged on the inner side of the switching part of the first supporting leg (1), a rotary controller (22) is arranged on the inner side of the switching part of the second supporting leg (2), and the rotary controller (22) comprises a clamping tongue (72) pushed by a first elastic piece (51) to be clamped in a tooth socket of the gear (12);

the novel gear tooth socket comprises a gear tooth socket body and is characterized by further comprising a similar-mouth-shaped support (66) and a second spring (44), wherein a fixed block (65) is arranged on the inner wall of one side of the similar-mouth-shaped support (66), and in an initial state of the second spring (44), a locking clamping tongue (72) of the fixed block (65) is kept clamped and fixed in the tooth socket of the gear (12).

2. A rotary shaft coupling for a combination ruler according to claim 1, wherein the second leg (2) is provided with a chalk clip (3) at one end thereof in an axial rotation.

3. The rotary shaft connector of the combined ruler tool according to claim 1, wherein one end of the first supporting leg (1) is fixedly provided with a stitch (16), the side surface of the other end of the first supporting leg (1) is fixedly provided with a first arc-shaped table (14), and the top end of the first arc-shaped table (14) is fixedly provided with a handle (15).

4. The rotary shaft combining part of the combined ruler according to claim 1, wherein the rotary controller (22) comprises a fixed support (41), the fixed support (41) is fixedly arranged on the second support leg (2), the clamping tongue (72) is slidably arranged on a concave structure of the fixed support (41), and the first elastic part (51) is fixedly arranged in the concave structure of the fixed support (41).

5. The rotary shaft connector of a combination ruler according to claim 4, wherein the first elastic member (51) comprises a multi-section telescopic sleeve (53), a first spring (52) is arranged in the multi-section telescopic sleeve (53), and a clamping tongue (72) is fixedly connected to a head section sleeve of the multi-section telescopic sleeve (53).

6. The rotary shaft connector of the combined ruler set forth in claim 5, wherein the clamping tongue (72) is provided with a fixing opening (74), and the fixing opening (74) is matched with the fixing block (65) in a clamping manner.

7. The rotary shaft connector of a combination ruler according to claim 1, wherein blocking plates (64) are symmetrically and fixedly arranged on the bracket (66) like a Chinese character kou.

8. The rotary shaft connector of the combined ruler according to claim 7, wherein one end of the fixing support (41) is of a concave structure, through holes (42) are formed in two ends of the concave structure, a first elastic piece (51) is arranged on the fixing support (41), a similar-mouth-shaped support (66) is movably arranged in the through holes (42), and a second spring (44) is fixedly arranged on one side of the blocking plate (64).

9. The rotary shaft connector of the combined ruler tool according to claim 2, wherein the chalk holder (3) comprises a fixing barrel (34), a fixing nut (33) is spirally arranged on the side wall of the fixing barrel (34), a second arc-shaped table (32) is fixedly arranged at one end of the fixing barrel (34), a connecting rod (31) is fixedly connected to one end of the second arc-shaped table (32), and the connecting rod (31) is axially and rotatably arranged on the second supporting leg (2).