CN219828428U - a telescopic mechanism - Google Patents

Abstract

The utility model relates to the technical field of telescopic devices, specifically a telescopic mechanism, which includes a telescopic structure, a support frame and a connecting plate; the connecting plate connects the supporting frame through the telescopic structure; the telescopic structure includes a first rotation axis, a second rotation axis, a third Rotation axis, fourth rotation axis, fifth rotation axis, sixth rotation axis, seventh rotation axis, eighth rotation axis, first extension rod, second extension rod, third extension rod, first telescopic rod, second Telescopic rod, third telescopic rod, first support rod and second support rod. The telescopic mechanism provided by the utility model can make the telescopic structure nest and collapse step by step during the storage process, and finally store the telescopic structure in the groove of the support frame, which saves more space, and the telescopic structure can form a stable triangle after unfolding. The bracket structure greatly improves the stability of the telescopic mechanism when it is extended.

Description

a telescopic mechanism

Technical field

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

Background technique

The current application of telescopic structures can effectively utilize the space within the equipment, effectively save material consumption, and improve operational flexibility. Due to the multiple components and too many connection methods, it is easy for the telescopic mechanism body to exceed the space budget and affect the normal contraction of the telescopic mechanism body. , in the application process of various mechanisms, how to increase the strength of the telescopic mechanism and make the mechanism itself occupy a small space has become the development direction of various telescopic mechanisms.

Utility model content

The purpose of this utility model is to propose a telescopic mechanism to solve the problems existing in the background technology.

The technical solution of the present invention: a telescopic mechanism, including a telescopic structure, a support frame and a connecting plate; the telescopic structure includes a first rotation axis, a second rotation axis, a third rotation axis, a fourth rotation axis, a fifth rotation axis, The sixth rotation axis, the seventh rotation axis, the eighth rotation axis, the first extension rod, the second extension rod, the third extension rod, the first telescopic rod, the second telescopic rod, the third telescopic rod, the first support rod and a second support rod; there are two first extension rods, second extension rods, third extension rods, first telescopic rods, second telescopic rods, third telescopic rods and first support rods, and they are arranged side by side;

One end of the support frame is rotationally connected to one end of the two first extension rods through a first rotation axis; the other end of the two first extension rods is rotationally connected to one end of the two third extension rods through a second rotation axis; The other end of the three extension rods is rotatably connected to one end of the connecting plate through the seventh rotation axis;

One end of the two first telescopic rods is slidingly connected to the support frame, one end of the two first telescopic rods and one end of the two second telescopic rods are rotationally connected through a third rotation axis; the other end of the two second telescopic rods and the two One end of the third telescopic rod is rotationally connected through the fifth rotation axis, and the other ends of the two third telescopic rods are rotationally connected through the sixth rotation axis to the end surface of the connecting plate;

One end of the two first support rods is rotationally connected to the other end of the support frame through a fourth rotation axis;

The other ends of the two first support rods and one end of the second support rod are both movably connected to the third rotation axis; one end of the two second extension rods is movably connected to the second rotation axis, and the other ends of the two second extension rods pass through the third rotation axis. The eight rotation axes are movably connected to the outer peripheral surface of the second support rod.

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

Preferably, when the connecting plate is vertical to the support frame, the angle between the third telescopic rod and the second telescopic rod is 135 degrees.

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

Preferably, the opening and closing angle of 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 between the two first extension rods is greater than the distance between the two third extension rods; the distance between the two third extension rods is greater than the distance between the two first support rods. ;The distance value between the two first support rods is greater than the distance value between the two first telescopic rods; the distance value between the two first telescopic rods is greater than the distance value between the two second telescopic rods; The distance value between the two second telescopic rods is greater than the distance value between the two third telescopic rods; the distance value between the two second telescopic rods is greater than the width value of the second support rod.

Preferably, the side of the support frame close to the connecting plate is provided with a groove for accommodating the telescopic structure.

Compared with the existing technology, the above technical solution of the present invention has the following beneficial technical effects:

In the telescopic mechanism provided by the utility model, 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 gradually decreases, so that the telescopic mechanism is in storage During the process, the telescopic structure can be nested and closed step by step, and finally the telescopic structure can be stored in the groove of the support frame, which saves more space. After unfolding, the telescopic structure can form a stable triangular bracket structure, which greatly improves the extension of the telescopic mechanism. Stability in use.

Description of the drawings

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

Figure 2 is a front view of Figure 1.

Reference signs: 1. Support frame; 2. First rotation axis; 21. Second rotation axis; 22. Third rotation axis; 3. Fourth rotation axis; 4. Fifth rotation axis; 7. Sixth rotation axis ; 8. The seventh rotation axis; 9. The eighth rotation axis; 31. The first extension rod; 32. The second extension rod; 33. The third extension rod; 41. The first telescopic rod; 42. The second telescopic rod; 43. The third telescopic rod; 5. The first support rod; 51. The second support rod; 6. The connecting plate.

Detailed ways

Embodiment 1

As shown in Figure 1-2, the telescopic mechanism proposed by the utility model includes a telescopic structure, a support frame 1 and a connecting plate 6; the telescopic structure includes a first rotation axis 2, a second rotation axis 21, and a third rotation axis 22. , the fourth rotation axis 3, the fifth rotation axis 4, the sixth rotation axis 7, the seventh rotation axis 8, the eighth rotation axis 9, the first extension rod 31, the second extension rod 32, the third extension rod 33, the One telescopic rod 41, second telescopic rod 42, third telescopic rod 43, first support rod 5 and second support rod 51; first extension rod 31, second extension rod 32, third extension rod 33, first telescopic rod There are two rods 41, second telescopic rods 42, third telescopic rods 43 and first support rods 5, and they are arranged side by side;

One end of the support frame 1 is rotationally connected to one end of the two first extension rods 31 through the first rotation shaft 2; further, two fixed plates are arranged side by side on one end of the support frame 1; the first rotation shaft 2 is rotated or fixedly installed on both sides. when the first rotating shaft 2 is fixedly connected to the fixed plate, the two first extension plates 31 are movably connected to the first rotating shaft 2; when the first rotating shaft 2 is rotationally connected to the fixed plate, the two first extension plates 31 are fixed Or movably connect the first rotation axis 2. Through the above method, the support frame 1 is movablely connected to the two first extension rods 31; similarly, the fourth rotation axis 3, the sixth rotation axis 7, the seventh rotation axis 8 and the first rotation axis 2 are arranged in the same manner;

The other ends of the two first extension rods 31 are rotationally connected to one end of the two third extension rods 33 through the second rotation axis 21; the other ends of the two third extension rods 33 are rotationally connected to the connecting plate 6 through the seventh rotation axis 8. one end of;

Furthermore, the other ends of the two first extension rods 31 and one end of the two third extension rods 33 are provided with through holes for the second rotation shaft 21 to penetrate; both ends of the second rotation shaft 21 are provided with fixing members. , to limit the position of the second rotating shaft 21 to prevent the second rotating shaft 21 from detaching from the through hole, thereby realizing one end of two first extension rods 31, one end of two second extension rods 32 and two third extension rods. One end of 33 is rotationally connected through the second rotation axis 21; similarly, the third rotation axis 22, the fifth rotation axis 4 and the eighth rotation axis 9 are arranged in the same manner;

One end of the two first telescopic rods 41 is slidingly connected to 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 rotationally connected through the third rotating shaft 22; the two second telescopic rods 42 The other end of the two third telescopic rods 43 is rotationally connected to one end of the two third telescopic rods 43 through the fifth rotation axis 4, and the other end of the two third telescopic rods 43 is rotationally connected to the end surface of the connecting plate 6 through the sixth rotation axis 7;

One end of the two first support rods 5 is rotationally connected to the other end of the support frame 1 through the fourth rotation axis 3; the other ends of the two first support rods 5 and one end of the second support rod 51 are both movably connected to the third rotation axis. 22; One end of the two second extension rods 32 is movably connected to the second rotation axis 21, and the other end of the two second extension rods 32 is movably connected to the outer peripheral surface of the second support rod 51 through the eighth rotation axis 9.

Embodiment 2

As shown in Figure 1-2, the utility model proposes a telescopic mechanism. Compared with the first embodiment, the front projection area of the connecting plate 6 in this embodiment is smaller than the front projection area of the support frame 1;

When the connecting plate 6 is vertical to the support frame 1, the 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.

Embodiment 3

As shown in Figure 1-2, the utility model proposes a telescopic mechanism. Compared with the second embodiment, the opening and closing angle of the first extension rod 31 and the support frame 1 in this embodiment is 0-45 degrees; the second extension The opening and closing angle of the rod 32 and the third extension rod 33 is 0-30 degrees.

Embodiment 4

As shown in Figure 1-2, the telescopic mechanism proposed by the present utility model is compared with the first embodiment. In this 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 rods 33 is greater than the distance value between the two first support rods 5; the distance value between the two first support rods 5 is greater than the two first telescopic rods 41; the distance value between the two first telescopic rods 41 is greater than the distance value between the two second telescopic rods 42; the distance value between the two second telescopic rods 42 is greater than the distance value between the two third telescopic rods 42. The distance between the telescopic rods 43 is such that the third telescopic rod 43 can be rotated and retracted between the two second telescopic rods 42, and the two second telescopic rods 42 can be rotated and retracted between the two third telescopic rods 43. The distance value between the two second telescopic rods 42 is greater than the width value of the second support rod 51; causing the second support rod to rotate and be stored between the two second telescopic rods 42;

Embodiment 5

As shown in Figures 1-2, the utility model proposes a telescopic mechanism. Compared with the first embodiment, in this embodiment, the side of the support frame 1 close to the connecting plate 6 is provided with a groove for accommodating the telescopic structure. In the storage state, the telescopic structure is stored in the groove, and the connecting plate 6 fits the support frame 1 to facilitate storage and reduce storage space.

The embodiments of the present utility model are described in detail above with reference to the accompanying drawings. However, the utility model is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, the utility model can also be implemented without departing from the purpose of the present utility model. Make various changes.

Claims (7)

1. A telescopic mechanism, characterized in that it includes a telescopic structure, a support frame (1) and a connecting plate (6); the telescopic structure includes a first rotation axis (2), a second rotation axis (21), and a third rotation axis. (22), the fourth rotation axis (3), the fifth rotation axis (4), the sixth rotation axis (7), the seventh rotation axis (8), the eighth rotation axis (9), 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), the first support rod (5) and The 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 There are two telescopic rods (43) and first support rods (5), and they are arranged side by side; One end of the support frame (1) is rotationally connected to one end of the two first extension rods (31) through the first rotation shaft (2); the other end of the two first extension rods (31) is connected to the two third extension rods ( One end of 33) is rotationally connected through the second rotation axis (21); the other ends of the two third extension rods (33) are rotationally connected through the seventh rotation axis (8) to one end of the connecting plate (6); One end of the two first telescopic rods (41) is slidingly connected to the support frame (1), and one end of the two first telescopic rods (41) and one end of the two second telescopic rods (42) pass through the third rotation axis (22) Rotation connection; the other ends of the two second telescopic rods (42) and one end of the two third telescopic rods (43) are rotationally connected through the fifth rotation axis (4), and the other ends of the two third telescopic rods (43) The end surface of the connecting plate (6) is rotatably connected through the sixth rotation axis (7); One end of the two first support rods (5) is rotationally connected to the other end of the support frame (1) through the fourth rotation axis (3); The other ends of the two first support rods (5) and one end of the second support rod (51) are both movably connected to the third rotation axis (22); one end of the two second extension rods (32) is movably connected to the second rotation axis. (21), the other ends of the two second extension rods (32) are movably connected to the outer peripheral surface of the second support rod (51) through the eighth rotation axis (9). 2. A telescopic mechanism according to claim 1, characterized in that the front projection area of the connecting plate (6) is smaller than the front projection area of the support frame (1). 3. A telescopic mechanism according to claim 1, characterized in that when the connecting plate (6) is vertical to the support frame (1), there is a gap between the third telescopic rod (43) and the second telescopic rod (42). The included angle is 135 degrees. 4. A telescopic mechanism according to claim 3, characterized in that 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, characterized in that 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 between the second extension rod (32) and the third extension rod (32) is 0-45 degrees. The opening and closing angle of the extension rod (33) is 0-30 degrees. 6. A telescopic mechanism according to claim 1, characterized in that the distance between the two first extension rods (31) is greater than the distance between the two third extension rods (33); The distance between the third extension rod (33) is greater than the distance between the two first support rods (5); the distance between the two first support rods (5) is greater than the distance between the two first telescopic rods ( 41); the distance value between the two first telescopic rods (41) is greater than the distance value between the two second telescopic rods (42); the distance value between the two second telescopic rods (42) The distance value is greater than the distance value between the two third telescopic rods (43); the distance value between the two second telescopic rods (42) is greater than the width value of the second support rod (51). 7. A telescopic mechanism according to claim 1, characterized in that a groove for accommodating the telescopic structure is provided on one side of the support frame (1) close to the connecting plate (6).