A two-pole telescopic mechanism for screw drive

Abstract

The utility model proposes a two-pole telescopic mechanism for screw drive, comprising: a swing arm, in which a primary driving screw is arranged; a primary telescopic arm, one end of which is inserted into the swing arm and is threadedly connected to the primary driving screw; a secondary telescopic arm, one end of which is inserted into the primary telescopic arm and is threadedly connected to the secondary driving screw; a driving motor is arranged on one side of the swing arm and is connected to the primary driving screw. The utility model drives the primary driving screw to rotate by the driving motor. With the rotation of the primary driving screw, the primary telescopic arm is in a retracted state, the primary driving screw drives the secondary driving screw to rotate, and the second telescopic arm is in a retracted state. Conversely, the same is true when extending. The utility model realizes the effect of secondary telescopic extension, thereby cooperating with the inflation and lifting of the tethered balloon.

Description

Technical Field

[0001] The utility model belongs to the technical field of tethered balloons, and particularly relates to a two-pole telescopic mechanism driven by a screw rod. Background Art

[0002] At present, a tethered balloon is a lighter-than-air aerostat. Compared with aircraft such as airplanes and drones, it has the characteristic of staying in the air for a long time. The tethered balloon is tethered by tethering rigging or tethering cables to achieve the purpose of staying in the air at a fixed point.

[0003] Since the tethered balloon is large in size, it needs to be transported to a designated location before it is inflated and released. After use, the balloon is recovered by a cable. Currently, the cable is fixed by a winch, which is set on a support frame. The angle of the support frame is adjusted according to the inflation and recovery of the tethered balloon. However, as the volume of the tethered balloon increases, the non-retractable support frame can no longer meet the inflation and recovery requirements of the tethered balloon. Utility Model Content

[0004] The utility model provides a two-pole telescopic mechanism for screw rod driving, which solves the above problem.

[0005] The technical solution of the utility model is implemented as follows: a two-pole telescopic mechanism for screw rod drive, comprising:

[0006] The swing arm has a primary drive screw inside;

[0007] A primary telescopic arm, one end of which is inserted into the swing arm and is threadedly connected to the primary driving screw;

[0008] A secondary telescopic arm, one end of which is inserted into the primary telescopic arm and is threadedly connected to the secondary driving screw;

[0009] The driving motor is arranged at one side of the swing arm and is connected to the primary driving screw.

[0010] The utility model drives the primary driving screw to rotate through a driving motor. As the primary driving screw rotates, the primary telescopic arm is in a retracted state. The primary driving screw drives the secondary driving screw to rotate, and the second telescopic arm is in a retracted state. Conversely, the same is true when extending. The utility model realizes the effect of secondary telescopic extension, thereby cooperating with the inflation and lifting of the tethered balloon.

[0011] As a preferred embodiment, the swing arm is hollow, one end of the swing arm is closed, and the other end of the swing arm is open. The first-level telescopic arm is inserted from the opening and is slidably connected to the inner wall of the swing arm. The first-level telescopic arm is hollow with both ends passing through. One end of the second-level telescopic arm is slidably connected to the inner wall of the first-level telescopic arm. A winch is provided at the other end of the second-level telescopic arm. The second-level telescopic arm is hollow.

[0012] As a preferred embodiment, the first-stage driving screw is solid, one end of the first-stage driving screw is connected to the transmission shaft of the driving motor, the other end of the first-stage driving screw is provided with a first-stage end cover by a bolt, and the outer surface of the first-stage driving screw is threaded.

[0013] As a preferred embodiment, the secondary drive screw is hollow, one end of the secondary drive screw is sleeved on the outside of the primary drive screw, the other end of the secondary drive screw is provided with a secondary end cover by bolts, and the outer surface of the secondary drive screw is threaded.

[0014] As a preferred embodiment, a primary fixing seat is fixedly provided at the end of the primary telescopic arm, and a threaded connection is provided between the inner wall of the primary fixing seat and the outer wall of the primary driving screw.

[0015] As a preferred embodiment, the primary fixing seat includes:

[0016] A first fixing seat is arranged in a T-shape, the first fixing seat is sleeved on the outer side of the primary driving screw, and the inner wall of the first fixing seat and the outer wall of the primary driving screw are threadedly connected;

[0017] The second fixing seat is sleeved on the outer side of the first fixing seat, and the second fixing seat and the first fixing seat are fixedly connected by bolts;

[0018] The third fixing seat is sleeved on the outer side of the second fixing seat and is connected to the second fixing seat through a bearing.

[0019] As a preferred embodiment, a sliding block is provided on the outer side of the third fixing seat, a sliding groove is provided on the inner wall of the swing arm, and the sliding block and the sliding groove are slidably connected.

[0020] As a preferred embodiment, a secondary fixing seat is fixedly provided at the end of the secondary telescopic arm, the secondary fixing seat is arranged in a T-shape, and a threaded connection is arranged between the inner wall of the secondary fixing seat and the outer wall of the secondary driving screw.

[0021] As a preferred embodiment, a limit seat is sleeved on the outer side of the secondary drive screw, and a threaded connection is provided between the inner wall of the limit seat and the outer wall of the secondary drive screw.

[0022] After adopting the above technical solution, the beneficial effects of the utility model are:

[0023] The utility model drives a primary driving screw to rotate through a driving motor, and when the primary driving screw drives a secondary driving screw to rotate, the primary telescopic arm and the secondary telescopic arm are telescoped, thereby cooperating with the inflation and lifting of the tethered balloon. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the first-level fixed seat;

[0027] Figure 3 It is a three-dimensional structural schematic diagram of the utility model.

[0028] In the figure, 1-swing arm; 2-first telescopic arm; 3-second telescopic arm; 4-driving motor; 5-first driving screw; 6-second driving screw; 7-capstan; 8-first fixing seat; 9-second fixing seat; 10-limiting seat; 50-first end cover; 60-second end cover; 80-first fixing seat; 81-second fixing seat; 82-third fixing seat; 83-slider. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1

[0031] Combination Figure 1 and Figure 2 As shown, a two-pole telescopic mechanism for screw drive includes a swing arm 1, the swing arm 1 is hollow, one end of the swing arm 1 is closed, a drive motor 4 is arranged on one side of the closed end, the other end of the swing arm 1 is open, a first-stage telescopic arm 2 is inserted in the opening, a first-stage driving screw 5 is arranged in the swing arm 1, and the drive motor 4 and the first-stage driving screw 5 are connected.

[0032] The first-stage driving screw 5 is solidly arranged, one end of the first-stage driving screw 5 is connected to the transmission shaft of the driving motor 4, and the other end of the first-stage driving screw 5 is provided with a first-stage end cover 50 by bolts, and the outer surface of the first-stage driving screw 5 is threaded.

[0033] The primary telescopic arm 2 is hollow with both ends through, and a primary fixed seat 8 is fixedly arranged at one end of the primary telescopic arm 2, and the inner wall of the primary fixed seat 8 is threadedly connected to the outer wall of the primary driving screw 5. The primary fixed seat 8 includes: a first fixed seat 80, which is T-shaped, and the first fixed seat 80 is sleeved on the outer side of the primary driving screw 5, and the inner wall of the first fixed seat 80 is threadedly connected to the outer wall of the primary driving screw 5; a second fixed seat 81, which is sleeved on the outer side of the first fixed seat 80, and the second fixed seat 81 and the first fixed seat 80 are fixedly connected by bolts; a third fixed seat 82, which is sleeved on the outer side of the second fixed seat 81, and is connected to the second fixed seat 81 by a bearing. A slider 83 is arranged on the outer side of the third fixed seat 82, and a slide groove is arranged on the inner wall of the swing arm 1, and the slider 83 is slidably connected to the slide groove.

[0034] A secondary telescopic arm 3 is inserted at the other end of the primary telescopic arm 2. A winch 7 is provided at the end of the secondary telescopic arm 3. The winch 7 and the tethered balloon are connected by a rope. When the tethered balloon is inflated and rises, the utility model drives the primary driving screw 5 to rotate through the driving motor 4. In the threaded connection state of the primary fixed seat 8, the primary telescopic arm 2 and the swing arm 1 cooperate to achieve the effect of shortening or lengthening.

[0035] Example 2

[0036] Combination Figure 1 and Figure 2 As shown, a secondary drive screw 6 is provided in the primary telescopic arm 2, and the secondary drive screw 6 is hollow. One end of the secondary drive screw 6 is sleeved on the outside of the primary drive screw 5, and the other end of the secondary drive screw 6 is provided with a secondary end cover 60 by bolts, and the outer surface of the secondary drive screw 6 is threaded. A secondary fixing seat 9 is fixedly provided at the end of the secondary telescopic arm 3, and the secondary fixing seat 9 is T-shaped, and the inner wall of the secondary fixing seat 9 and the outer wall of the secondary drive screw 6 are threadedly connected. A limit seat 10 is sleeved on the outer side of the secondary drive screw 6, and the inner wall of the limit seat 10 and the outer wall of the secondary drive screw 6 are threadedly connected.

[0037] The secondary telescopic arm 3 is hollow. When the tethered balloon is inflated and rises, the utility model drives the primary driving screw 5 to rotate through the driving motor 4. When the primary driving screw 5 drives the secondary driving screw 6 to rotate, the primary telescopic arm 2 and the secondary telescopic arm 3 are extended and retracted, thereby cooperating with the inflation and lifting of the tethered balloon.

[0038] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A two-pole telescopic mechanism for screw drive, characterized in that: include: The swing arm has a primary drive screw inside; A primary telescopic arm, one end of which is inserted into the swing arm and is threadedly connected to the primary driving screw; A secondary telescopic arm, one end of which is inserted into the primary telescopic arm and is threadedly connected to the secondary driving screw; The driving motor is arranged at one side of the swing arm and is connected to the primary driving screw.

2. A two-pole telescopic mechanism for screw rod drive according to claim 1, characterized in that: The swing arm is hollow, one end of the swing arm is closed, and the other end of the swing arm is open. The first-level telescopic arm is inserted from the opening and is slidably connected to the inner wall of the swing arm. The first-level telescopic arm is hollow with both ends passing through. One end of the second-level telescopic arm is slidably connected to the inner wall of the first-level telescopic arm. A winch is provided at the other end of the second-level telescopic arm. The second-level telescopic arm is hollow.

3. A two-pole telescopic mechanism for screw rod drive according to claim 1, characterized in that: The first-stage driving screw is solidly arranged, one end of the first-stage driving screw is connected to the transmission shaft of the driving motor, the other end of the first-stage driving screw is provided with a first-stage end cover by means of bolts, and the outer surface of the first-stage driving screw is threaded.

4. A two-pole telescopic mechanism for screw rod drive according to claim 1, characterized in that: The secondary drive screw is hollow, one end of which is sleeved on the outside of the primary drive screw, the other end of which is provided with a secondary end cover via bolts, and the outer surface of the secondary drive screw is threaded.

5. A two-pole telescopic mechanism for screw rod drive according to claim 1, characterized in that: A primary fixing seat is fixedly arranged at the end of the primary telescopic arm, and a threaded connection is arranged between the inner wall of the primary fixing seat and the outer wall of the primary driving screw.

6. A two-pole telescopic mechanism for screw rod drive according to claim 5, characterized in that: The primary fixing seat comprises: A first fixing seat is arranged in a T-shape, the first fixing seat is sleeved on the outer side of the primary driving screw, and the inner wall of the first fixing seat and the outer wall of the primary driving screw are threadedly connected; The second fixing seat is sleeved on the outer side of the first fixing seat, and the second fixing seat and the first fixing seat are fixedly connected by bolts; The third fixing seat is sleeved on the outer side of the second fixing seat and is connected to the second fixing seat through a bearing.

7. A two-pole telescopic mechanism for screw rod drive according to claim 6, characterized in that: A sliding block is arranged on the outer side of the third fixing seat, a sliding groove is arranged on the inner wall of the swing arm, and the sliding block and the sliding groove are slidably connected with each other.

8. A two-pole telescopic mechanism for screw rod drive according to claim 1, characterized in that: A secondary fixing seat is fixedly arranged at the end of the secondary telescopic arm. The secondary fixing seat is arranged in a T shape. The inner wall of the secondary fixing seat and the outer wall of the secondary driving screw are threadedly connected.

9. A two-pole telescopic mechanism for screw rod drive according to claim 1, characterized in that: A limiting seat is sleeved on the outer side of the secondary driving lead screw, and a threaded connection is arranged between the inner wall of the limiting seat and the outer wall of the secondary driving lead screw.

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