CN219828428U

CN219828428U - Telescopic mechanism

Info

Publication number: CN219828428U
Application number: CN202321024825.8U
Authority: CN
Inventors: 王伟
Original assignee: Shaanxi Lanzhou Innovation Wood Engineering Co ltd
Current assignee: Shaanxi Lanzhou Innovation Wood Engineering Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-10-13
Anticipated expiration: 2033-05-04

Abstract

The utility model relates to the technical field of telescopic devices, in particular to a telescopic mechanism which comprises a telescopic structure, a support frame and a connecting plate; the connecting plate is connected with the supporting frame through a telescopic structure; the telescopic structure comprises a first rotating shaft, a second rotating shaft, a third rotating shaft, a fourth rotating shaft, a fifth rotating shaft, a sixth rotating shaft, a seventh rotating shaft, an eighth rotating shaft, a first extension rod, a second extension rod, a third extension rod, a first telescopic rod, a second telescopic rod, a third telescopic rod, a first supporting rod and a second supporting rod. According to the telescopic mechanism provided by the utility model, the telescopic structure can be nested and folded step by step in the storage process, and finally the telescopic structure is stored in the groove of the support frame, so that more space is saved, and a stable triangular support structure can be formed after the telescopic structure is unfolded, so that the stability of the telescopic mechanism in an extended use state is greatly improved.

Description

Telescopic mechanism

Technical Field

The utility model relates to the technical field of telescopic devices, in particular to a telescopic mechanism.

Background

At present, the telescopic structure is applied to effectively utilize the space in the equipment, effectively save material consumption and improve operation flexibility, and due to the plurality of components, the telescopic mechanism body is easy to exceed space budget due to too many connection modes, so that normal shrinkage of the telescopic mechanism body is influenced, the strength of the telescopic mechanism is increased in the application process of various mechanisms, the occupied space of the mechanism is small, and the telescopic mechanism is in the development direction of various telescopic mechanisms.

Disclosure of Invention

The utility model aims to solve the problems in the background art and provides a telescopic mechanism.

The technical scheme of the utility model is as follows: a telescopic mechanism comprises a telescopic structure, a support frame and a connecting plate; the telescopic structure comprises a first rotating shaft, a second rotating shaft, a third rotating shaft, a fourth rotating shaft, a fifth rotating shaft, a sixth rotating shaft, a seventh rotating shaft, an eighth rotating shaft, a first extension rod, a second extension rod, a third extension rod, a first telescopic rod, a second telescopic rod, a third telescopic rod, a first supporting rod and a second supporting rod; the first extension rod, the second extension rod, the third extension rod, the first telescopic rod, the second telescopic rod, the third telescopic rod and the first support rod are all arranged in two and side by side;

one end of the support frame is rotationally connected with one ends of the two first extension rods through a first rotating shaft; the other ends of the two first extension rods are rotationally connected with one ends of the two third extension rods through a second rotating shaft; the other ends of the two third extension rods are rotationally connected with one end of the connecting plate through a seventh rotating shaft;

one end of the two first telescopic rods is connected with the supporting frame in a sliding manner, and one end of the two first telescopic rods is connected with one end of the two second telescopic rods in a rotating manner through a third rotating shaft; the other ends of the two second telescopic rods are rotationally connected with one ends of the two third telescopic rods through a fifth rotating shaft, and the other ends of the two third telescopic rods are rotationally connected with the end face of the connecting plate through a sixth rotating shaft;

one end of the two first support rods is rotationally connected with the other end of the support frame through a fourth rotating shaft;

the other ends of the two first support rods and one end of the second support rod are both movably connected with a third rotating shaft; one end of the two second extension rods is movably connected with the second rotating shaft, and the other ends of the two second extension rods are movably connected with the outer peripheral surface of the second support rod through the eighth rotating shaft.

Preferably, the front projection area of the connecting plate is smaller than the front projection area of the supporting frame.

Preferably, under the perpendicular state of the connecting plate and the support frame, the included angle between the third telescopic rod and the second telescopic rod is 135 degrees.

Preferably, the included angle between the first telescopic rod and the second telescopic rod is 180 degrees.

Preferably, the opening and closing angle between the first extension rod and the support frame is 0-45 degrees; the opening and closing angle of the second extension rod and the third extension rod is 0-30 degrees.

Preferably, the distance value between the two first extension bars is greater than the distance value between the two third extension bars; the distance value between the two third extension rods is larger than the distance value between the two first support rods; the distance value between the two first support rods is larger than the distance value between the two first telescopic rods; the distance value between the two first telescopic rods is larger than the distance value between the two second telescopic rods; the distance value between the two second telescopic rods is larger than the distance value between the two third telescopic rods; the distance value between the two second telescopic rods is larger than the width value of the second supporting rod.

Preferably, a groove for accommodating the telescopic structure is formed in one side, close to the connecting plate, of the support frame.

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects:

according to the telescopic mechanism, the distance value between the two first extension rods, the distance value between the two third extension rods, the distance value between the two first support rods, the distance value between the two first telescopic rods, the distance value between the two second telescopic rods, the distance value between the two third telescopic rods and the distance value between the two second extension rods are gradually reduced, so that the telescopic mechanism can be nested and folded step by step in the storage process, and finally the telescopic structure is stored in the groove of the support frame, the space is saved, a stable triangular support structure can be formed after the telescopic structure is unfolded, and the stability of the telescopic mechanism in an extended use state is greatly improved.

Drawings

Fig. 1 is a perspective view of an embodiment of the present utility model.

Fig. 2 is a front view of fig. 1.

Reference numerals: 1. a support frame; 2. a first rotation shaft; 21. a second rotation shaft; 22. a third rotation shaft; 3. a fourth rotation shaft; 4. a fifth rotation shaft; 7. a sixth rotation shaft; 8. a seventh rotation shaft; 9. an eighth rotation shaft; 31. a first spreader lever; 32. a second spreader lever; 33. a third spreader lever; 41. a first telescopic rod; 42. a second telescopic rod; 43. a third telescopic rod; 5. a first support bar; 51. a second support bar; 6. and (5) connecting a plate.

Detailed Description

Example 1

As shown in fig. 1-2, the telescopic mechanism provided by the utility model comprises a telescopic structure, a support frame 1 and a connecting plate 6; the telescopic structure includes a first rotation shaft 2, a second rotation shaft 21, a third rotation shaft 22, a fourth rotation shaft 3, a fifth rotation shaft 4, a sixth rotation shaft 7, a seventh rotation shaft 8, an eighth rotation shaft 9, a first extension lever 31, a second extension lever 32, a third extension lever 33, a first telescopic lever 41, a second telescopic lever 42, a third telescopic lever 43, a first support lever 5, and a second support lever 51; the first extension rod 31, the second extension rod 32, the third extension rod 33, the first telescopic rod 41, the second telescopic rod 42, the third telescopic rod 43 and the first support rod 5 are arranged in parallel;

one end of the support frame 1 is rotatably connected with one ends of two first extension rods 31 through a first rotating shaft 2; further, two fixing plates are arranged at one end of the support frame 1 side by side; the first rotating shaft 2 is rotatably or fixedly arranged on the two fixed plates; when the first rotating shaft 2 is fixedly connected with the fixed plate, the two first extension plates 31 are movably connected with the first rotating shaft 2; when the first rotating shaft 2 is rotatably connected with the fixing plate, the two first extension plates 31 are fixedly or movably connected with the first rotating shaft 2. The support frame 1 is movably connected with the two first extension rods 31 in the mode; the fourth rotating shaft 3, the sixth rotating shaft 7 and the seventh rotating shaft 8 are arranged in the same way as the first rotating shaft 2;

the other ends of the two first extension bars 31 are rotatably connected with one ends of the two third extension bars 33 through the second rotation shaft 21; the other ends of the two third extension rods 33 are rotatably connected with one end of the connecting plate 6 through a seventh rotating shaft 8;

further, through holes for the second rotating shaft 21 to penetrate are formed at the other ends of the two first extension rods 31 and one ends of the two third extension rods 33; fixing pieces are arranged at two ends of the second rotating shaft 21 to limit the second rotating shaft 21 and prevent the second rotating shaft 21 from being separated from the through hole, so that one ends of the two first extension rods 31, one ends of the two second extension rods 32 and one ends of the two third extension rods 33 are rotatably connected through the second rotating shaft 21; the third rotation shaft 22, the fifth rotation shaft 4 and the eighth rotation shaft 9 are arranged in the same manner;

one end of the two first telescopic rods 41 is slidably connected with the support frame 1, and one end of the two first telescopic rods 41 and one end of the two second telescopic rods 42 are rotatably connected through the third rotary shaft 22; the other ends of the two second telescopic rods 42 and one ends of the two third telescopic rods 43 are rotationally connected through a fifth rotating shaft 4, and the other ends of the two third telescopic rods 43 are rotationally connected with the end face of the connecting plate 6 through a sixth rotating shaft 7;

one end of the two first support rods 5 is rotationally connected with the other end of the support frame 1 through a fourth rotating shaft 3; the other ends of the two first support rods 5 and one end of the second support rod 51 are both movably connected with the third rotating shaft 22; one end of the two second extension rods 32 is movably connected with the second rotating shaft 21, and the other end of the two second extension rods 32 is movably connected with the outer circumferential surface of the second supporting rod 51 through the eighth rotating shaft 9.

Example two

As shown in fig. 1-2, in the telescopic mechanism according to the present utility model, compared with the first embodiment, the forward projection area of the connecting plate 6 is smaller than the forward projection area of the supporting frame 1;

in the state that the connecting plate 6 is vertical to the supporting frame 1, an included angle between the third telescopic rod 43 and the second telescopic rod 42 is 135 degrees. The included angle between the first telescopic rod 41 and the second telescopic rod 42 is 180 degrees.

Example III

As shown in fig. 1-2, in the telescopic mechanism according to the present utility model, compared with the second embodiment, the opening and closing angle between the first extension rod 31 and the support frame 1 is 0-45 degrees; the opening and closing angle of the second extension rod 32 and the third extension rod 33 is 0-30 degrees.

Example IV

As shown in fig. 1-2, in the telescopic mechanism according to the present utility model, compared with the first embodiment, the distance between the two first extension rods 31 is greater than the distance between the two third extension rods 33; the distance value between the two third extension bars 33 is greater than the distance value between the two first support bars 5; the distance value between the two first support rods 5 is greater than the distance value between the two first telescopic rods 41; the distance value between the two first telescopic links 41 is greater than the distance value between the two second telescopic links 42; the distance value between the two second telescopic rods 42 is larger than the distance value between the two third telescopic rods 43, so that the third telescopic rods 43 can be rotatably received between the two second telescopic rods 42, the two second telescopic rods 42 can be rotatably received between the two third telescopic rods 43, and the distance value between the two second telescopic rods 42 is larger than the width value of the second supporting rod 51; so that the second support rod is rotatably received between the two second telescopic rods 42;

example five

As shown in fig. 1-2, in the telescopic mechanism according to the present utility model, compared with the first embodiment, a recess for accommodating the telescopic structure is provided on a side of the support frame 1 near the connecting plate 6. Under the storage state, the telescopic structure is stored in the groove, and the connecting plate 6 is attached to the support frame 1, so that storage space is reduced.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. The telescopic mechanism is characterized by comprising a telescopic structure, a support frame (1) and a connecting plate (6); the telescopic structure comprises a first rotating shaft (2), a second rotating shaft (21), a third rotating shaft (22), a fourth rotating shaft (3), a fifth rotating shaft (4), a sixth rotating shaft (7), a seventh rotating shaft (8), an eighth rotating shaft (9), a first extension rod (31), a second extension rod (32), a third extension rod (33), a first telescopic rod (41), a second telescopic rod (42), a third telescopic rod (43), a first support rod (5) and a second support rod (51); the first extension rod (31), the second extension rod (32), the third extension rod (33), the first telescopic rod (41), the second telescopic rod (42), the third telescopic rod (43) and the first support rod (5) are arranged in parallel;

one end of the supporting frame (1) is rotatably connected with one ends of the two first extension rods (31) through a first rotating shaft (2); the other ends of the two first extension rods (31) are rotatably connected with one ends of the two third extension rods (33) through a second rotating shaft (21); the other ends of the two third extension rods (33) are rotationally connected with one end of the connecting plate (6) through a seventh rotating shaft (8);

one end of the two first telescopic rods (41) is connected with the support frame (1) in a sliding manner, and one end of the two first telescopic rods (41) is connected with one end of the two second telescopic rods (42) in a rotating manner through a third rotating shaft (22); the other ends of the two second telescopic rods (42) and one ends of the two third telescopic rods (43) are rotationally connected through a fifth rotating shaft (4), and the other ends of the two third telescopic rods (43) are rotationally connected with the end face of the connecting plate (6) through a sixth rotating shaft (7);

one end of the two first support rods (5) is rotationally connected with the other end of the support frame (1) through a fourth rotating shaft (3);

the other ends of the two first support rods (5) and one end of the second support rod (51) are both movably connected with a third rotating shaft (22); one end of each second extension rod (32) is movably connected with the second rotating shaft (21), and the other end of each second extension rod (32) is movably connected with the outer circumferential surface of each second support rod (51) through an eighth rotating shaft (9).

2. Telescopic mechanism according to claim 1, wherein the forward projected area of the connection plate (6) is smaller than the forward projected area of the support frame (1).

3. Telescopic mechanism according to claim 1, wherein the angle between the third telescopic rod (43) and the second telescopic rod (42) is 135 degrees in the perpendicular state of the connection plate (6) and the support frame (1).

4. A telescopic mechanism according to claim 3, wherein the angle between the first telescopic rod (41) and the second telescopic rod (42) is 180 degrees.

5. A telescopic mechanism according to claim 1, wherein the first extension bar (31) is open and close at an angle of 0-45 degrees to the support frame (1); the opening and closing angle of the second extension rod (32) and the third extension rod (33) is 0-30 degrees.

6. A telescopic mechanism according to claim 1, wherein the distance between the two first extension bars (31) is greater than the distance between the two third extension bars (33); the distance value between the two third extension rods (33) is larger than the distance value between the two first support rods (5); the distance value between the two first support rods (5) is larger than the distance value between the two first telescopic rods (41); the distance value between the two first telescopic rods (41) is larger than the distance value between the two second telescopic rods (42); the distance value between the two second telescopic rods (42) is larger than the distance value between the two third telescopic rods (43); the distance value between the two second telescopic rods (42) is larger than the width value of the second supporting rod (51).

7. Telescopic mechanism according to claim 1, characterized in that the side of the support frame (1) close to the connection plate (6) is provided with a recess for accommodating the telescopic structure.