An electrically controlled ejection device for a cylindrical sonde parachute

Abstract

The utility model discloses an electrically controlled ejection device for a tubular sonde parachute, which belongs to the technical field of tubular sondes and solves the problems of poor reliability and low success rate of opening the parachute of the existing sonde parachute opening device; the utility model comprises a sleeve with an opening at one end, the opening of the sleeve is hinged to one side of the umbrella cover, and the other side of the umbrella cover is detachably connected to an electromagnet locking assembly located inside the sleeve; and a parachute ejection assembly is arranged inside the sleeve. The electromagnet locking assembly in the utility model adopts an electromagnet as a control point for electrically controlled opening and ejection, and is not affected by the temperature of the environment during the release of the parachute, and can accurately control the opening timing of the umbrella cover, and has high reliability and success rate of opening the parachute. The locking rod, rotating rod and connecting rod in the electromagnet locking assembly adopt the setting of the dead point position, which reduces the demand for the magnetism of the electromagnet, and can place a larger volume of parachute to ensure the landing performance. In addition, a power-off type electromagnet is adopted to reduce the power loss of the sonde.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular sondes, in particular to an electrically controlled parachute ejection device for a tubular sonde. Background Art

[0002] The cylindrical sonde is a kind of aerial equipment commonly used in meteorological environment monitoring projects. The main meteorological data collected by the cylindrical sonde include temperature, humidity, air pressure, longitude and latitude, wind speed and wind direction, etc. In order to meet the full collection of meteorological data by the sonde, a parachute is usually used to slow down the descent speed of the sonde and increase the collection time. Therefore, ensuring the reliability of the sonde parachute ejection is a prerequisite for the efficient operation of the equipment.

[0003] At present, the parachute opening methods of the cylindrical sonde parachute opening device include resistance wire heating and manual throwing.

[0004] Although the resistance wire heating type parachute opening device has a simple structure and low cost, the material strength of the resistance wire is low and cannot withstand strong tensile and compressive strength. Therefore, the small-volume parachute usually used in the resistance wire heating type parachute opening device ensures that there is no squeezing between the umbrella cover and the umbrella, so that the resistance wire does not need to apply tension to the umbrella cover. However, the small-volume parachute cannot play a good role in slowing down the descent, and the descent time of the sonde cannot be guaranteed. In addition, the fusing time of the resistance wire is greatly affected by the ambient temperature, and the opening time of the umbrella cover cannot be accurately controlled.

[0005] The sonde that adopts manual throwing can only be used in manned aircraft, and the throwing action is completed by humans. Because the parachute has been untied before manual throwing, the state of the sonde is uncertain when it leaves the warehouse, which poses a hidden danger to the safety performance of the fuselage.

[0006] Moreover, both of the above-mentioned parachute opening methods use the inertia of the sonde tumbling in the air to throw the parachute cover and the parachute out of the cabin, which has poor controllability and reliability, and there is a hidden danger that the parachute cannot be successfully released from the cabin, and the success rate of parachute opening cannot be guaranteed. Utility Model Content

[0007] In view of the above problems in the prior art, the utility model provides an electrically controlled ejection device for a tubular sonde parachute, which solves the problems of poor reliability and low success rate of parachute opening of the prior sonde parachute opening device.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0009] Provided is an electrically controlled ejection device for a tubular sonde parachute, comprising a sleeve with an opening at one end, the opening of the sleeve being hinged to one side of an umbrella cover, the other side of the umbrella cover being detachably connected to an electromagnet locking assembly located inside the sleeve, the electromagnet locking assembly being used for locking the umbrella cover; a parachute ejection assembly is arranged inside the sleeve, the parachute ejection assembly comprising a parachute in extrusion contact with the bottom surface of the umbrella cover.

[0010] In this solution, the electromagnetic locking assembly is used to lock the umbrella cover. When the parachute needs to be launched, the electromagnetic locking assembly can be controlled to release the umbrella cover, so that the parachute in the parachute assembly can push the umbrella cover open in time to complete the parachute out of the chamber and the opening of the parachute. The electromagnetic locking assembly is not affected by the ambient temperature during the release of the parachute, and the opening time of the umbrella cover can be accurately controlled, which has high reliability and success rate of opening the parachute.

[0011] Furthermore, a bottom plate is provided at the bottom of the sleeve, a partition is provided on the bottom plate, and the electromagnet locking assembly and the elastic parachute assembly are respectively located on both sides of the partition. The provision of the partition avoids movement interference between the electromagnet locking assembly and the elastic parachute assembly.

[0012] Furthermore, the electromagnet locking assembly includes a locking rod and an electromagnet connecting rod mechanism, the rod body of the locking rod is hingedly arranged on the partition, a hanging rod is arranged on the top end of the locking rod, a hook is arranged on the bottom surface of the umbrella cover, and the hanging rod is hung on the hook; the electromagnet connecting rod mechanism is hingedly arranged on the bottom end of the locking rod, and is used to drive the locking rod to rotate on the partition to separate the hanging rod from the hook. Compared with the resistance wire, the locking rod has a higher tensile strength and can resist the ejection force of a larger parachute, so that the volume of the parachute in the ejection parachute assembly can be larger, fully ensuring the landing performance.

[0013] Furthermore, the hanging rod and the hook are both L-shaped, and the hanging rod is hung on the hook when the locking rod is in a vertical position. The hanging rod and the hook arranged in an L-shape facilitate the locking rod to separate the hanging rod and the hook during the rotation process.

[0014] Furthermore, the electromagnet linkage mechanism includes a rotating rod hinged on the partition at one end, the other end of the rotating rod is hinged to the connecting rod, and the other end of the connecting rod is hinged to the locking rod; a through slot is provided in the middle of the rotating rod, a push rod is movably arranged in the through slot, the push rod is fixedly connected to the base plate through a locking spring, an electromagnet electrically connected to the upper machine is arranged in the inner ring of the locking spring, the electromagnet is fixed to the base plate and magnetically connected to the push rod. The working principle of the umbrella cover opening in this scheme is: when the electromagnet loses the magnetic adsorption of the push rod, the push rod moves upward under the action of the locking spring, the push rod drives the rotating rod to tilt, and the rotating rod thereby drives the bottom end of the locking rod by driving the connecting rod, the locking rod rotates on the partition to separate the hanging rod from the hook, and the umbrella cover opens. Using an electromagnet as the control point for the electrically controlled cover opening ejection has a high time controllability.

[0015] Furthermore, the electromagnet is a power-off type electromagnet. By using the power-off type electromagnet as a control component, the power-off type electromagnet only needs to be powered briefly during operation of the sonde, which not only ensures the locking force when there is no power, but also greatly reduces power consumption.

[0016] Furthermore, the rotating rod and the connecting rod are both arranged perpendicularly to the locking rod when the push rod is magnetically connected to the electromagnet. Since the hook on the umbrella cover provides a vertical upward pulling force to the locking rod through the hanging rod, when the rotating rod and the connecting rod are located on the same horizontal line, it is a dead point position, so that the pulling force of the umbrella cover cannot drive the rotating rod to rotate through the locking rod, thereby reducing the magnetic performance of the electromagnet and ensuring the reliability of the electromagnet locking assembly to lock the umbrella cover.

[0017] Furthermore, a cylindrical tube with an open end is arranged on the bottom plate, and the push rod is slidably arranged on the inner wall of the cylindrical tube. The arrangement of the cylindrical tube limits the freedom of the push rod and the locking spring, ensuring that the locking spring can completely drive the push rod to move in the vertical upward direction.

[0018] Furthermore, the ejection parachute assembly also includes a platform, the bottom end of the parachute contacts the platform, and the bottom end of the platform is fixedly connected to the bottom plate through an ejection spring. The ejection spring is used to drive the parachute out of the chamber, thereby improving the reliability of the parachute out of the chamber and the opening of the parachute.

[0019] Furthermore, a guide column is arranged on the bottom plate, and the ejection spring is sleeved on the guide column. The arrangement of the guide column enables the elastic force of the ejection spring to be directed vertically upward.

[0020] The utility model discloses an electrically controlled ejection device for a tubular sonde parachute, which has the following beneficial effects:

[0021] 1. The electromagnet locking assembly of the utility model uses an electromagnet as the control point for the electrically controlled opening and ejection. The release process of the parachute is not affected by the ambient temperature, and the opening timing of the canopy can be accurately controlled, which has high reliability and success rate of parachute opening. The locking rod, rotating rod and connecting rod in the electromagnet locking assembly are set at the dead point position, which reduces the demand for the magnetism of the electromagnet and can place a larger parachute to ensure the landing performance.

[0022] 2. The electromagnetic point in the utility model is a power-off type electromagnet. During operation of the sonde, the power-off type electromagnet only needs to be powered briefly, which not only ensures the locking force when there is no electricity, but also reduces the power consumption of the sonde. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the electric-controlled ejection device of the cylindrical sonde parachute;

[0024] Figure 2 It is a structural schematic diagram of the parachute assembly;

[0025] Figure 3 It is a schematic diagram of the structure of the locking rod releasing the umbrella cover;

[0026] Among them: 1. electromagnet; 2. locking spring; 3. push rod; 4. rotating rod; 5. connecting rod; 6. locking rod; 7. umbrella cover; 8. bottom plate; 9. ejection spring; 10. guide column; 11. platform; 12. parachute; 13. partition; 14. sleeve. DETAILED DESCRIPTION

[0027] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0028] refer to Figure 1 to Figure 3 The present embodiment provides an electrically controlled ejection device for a tubular sonde parachute, comprising a sleeve 14, wherein an electromagnet locking assembly and a parachute ejection assembly are arranged inside the sleeve 14.

[0029] The sleeve 14 can be directly installed inside the launching barrel of the sounding instrument. One end of the sleeve 14 is opened. The opening of the sleeve 14 is hinged to one side of the umbrella cover 7. The other side of the umbrella cover 7 is detachably connected to the electromagnet locking assembly located inside the sleeve 14. The electromagnet locking assembly is used to lock the umbrella cover 7.

[0030] The parachute assembly is arranged inside the sleeve 14 , and the parachute assembly includes a parachute 12 which is in compression contact with the bottom surface of the umbrella cover 7 .

[0031] In this embodiment, the electromagnetic locking assembly is used to lock the umbrella cover 7. When the parachute 12 needs to be launched, the electromagnetic locking assembly can be controlled to release the umbrella cover 7, so that the parachute 12 in the parachute assembly can timely push the umbrella cover 7 open, completing the exit and opening of the parachute 12. The electromagnetic locking assembly is not affected by the ambient temperature and the aerial posture during the release of the parachute 12, and can accurately control the opening timing of the umbrella cover 7, with high reliability and success rate of opening the parachute.

[0032] As a further structure of the sleeve 14, a bottom plate 8 is provided at the bottom of the sleeve 14, a partition 13 is provided on the bottom plate 8, and the electromagnet locking assembly and the elastic umbrella assembly are respectively located on both sides of the partition 13. The provision of the partition 13 avoids the movement interference between the electromagnet locking assembly and the elastic umbrella assembly.

[0033] Specifically, refer to Figure 2The ejection parachute assembly also includes a platform 11, the bottom end of the parachute 12 contacts the platform 11, and the bottom end of the platform 11 is fixedly connected to the bottom plate 8 through the ejection spring 9. The ejection spring 9 is used to provide the parachute 12 with a compartment drive, thereby improving the reliability of the parachute 12 being out of the compartment and opening the parachute.

[0034] Preferably, a guide column 10 is provided on the bottom plate 8, and the ejection spring 9 is sleeved on the guide column 10. The arrangement of the guide column 10 provides guidance for the spring 9 to move vertically upward.

[0035] Specifically, refer to Figure 1 The electromagnet locking assembly includes a locking rod 6 and an electromagnet connecting rod mechanism. The rod body of the locking rod 6 is hingedly arranged on the partition 13. A hanging rod is arranged on the top of the locking rod 6. A hook is arranged on the bottom surface of the umbrella cover 7. The hanging rod is hung on the hook. The electromagnet connecting rod mechanism is hingedly arranged on the bottom end of the locking rod 6, and is used to drive the locking rod 6 to rotate on the partition 13 to separate the hanging rod from the hook. Compared with the resistance wire, the locking rod 6 has a higher tensile strength and can resist the ejection force of a larger parachute 12, so that a larger volume of parachute can be loaded, ensuring better landing performance.

[0036] Preferably, the hanging rod and the hook are both L-shaped, and the hanging rod is hung on the hook when the locking rod 6 is in the vertical position. The hanging rod and the hook arranged in an L-shaped manner facilitate the locking rod 6 to separate the hanging rod and the hook during the rotation process.

[0037] As a further solution of this embodiment, the electromagnet connecting rod mechanism includes a rotating rod 4 whose one end is hinged on the partition 13, the other end of the rotating rod 4 is hinged to the connecting rod 5, and the other end of the connecting rod 5 is hinged to the locking rod 6; a through groove is opened in the middle of the rotating rod 4, and a push rod 3 is movably arranged in the through groove, and the push rod 3 is fixedly connected to the base plate 8 through the locking spring 2, and an electromagnet 1 electrically connected to the upper machine is arranged in the inner ring of the locking spring 2, and the electromagnet 1 is fixed on the base plate 8 and magnetically connected to the push rod 3.

[0038] Preferably, the electromagnet 1 in this embodiment is a power-off type electromagnet. By using the power-off type electromagnet as a control component, the power-off type electromagnet only needs to be powered briefly during operation of the sonde, which not only ensures the locking force when there is no power, but also greatly reduces power consumption.

[0039] The working principle of opening the umbrella cover 7 in this embodiment is as follows: the upper computer controls the electromagnet 1 to be energized, the electromagnet 1 loses its magnetic attraction to the push rod 3, the push rod 3 moves upward under the action of the locking spring 2, the push rod 3 drives the rotating rod 4 to tilt, the rotating rod 4 drives the bottom end of the locking rod 6 by driving the connecting rod 5, the locking rod 6 rotates on the partition 13 to separate the hanging rod from the hook, and the umbrella cover 7 opens. Using the electromagnet 1 as the control point for the electric control cover ejection has a high time controllability.

[0040] As a further solution of this embodiment, the rotating rod 4 and the connecting rod 5 are both arranged perpendicular to the locking rod 6 when the push rod 3 is magnetically connected to the electromagnet 1 .

[0041] Due to the angle relationship formed by the rotating rod 4, the connecting rod 5 and the locking rod 6, the mechanism is in a dead point state. Even if the actual mechanism angle cannot reach the theoretical angle, the hook of the umbrella cover 7 needs a great pulling force to make the locking rod 6 drive the connecting rod 5 and the rotating rod 4 to rotate. Therefore, this principle ensures the reliability of the electromagnetic locking assembly locking the umbrella cover 7. In addition, this design reduces the requirements for the magnetic performance of the electromagnet 1, and only an electromagnet with a small magnetic force can ensure a reliable locking force.

[0042] As a further solution of this embodiment, a cylindrical tube with an open end is provided on the bottom plate 8, and the push rod 3 is slidably provided on the inner wall of the cylindrical tube. The provision of the cylindrical tube limits the freedom of the push rod 3 and the locking spring 2, ensuring that the locking spring 2 can completely drive the push rod 3 to move in the vertical upward direction.

[0043] The working principle of this embodiment is:

[0044] refer to Figure 1 and Figure 3 In the locked state, the rotating rod 4 and the connecting rod 5 are both arranged vertically with the locking rod 6 when the push rod 3 is magnetically connected to the electromagnet 1. When the parachute 12 needs to be launched, the electromagnet 1 is energized, and the electromagnet 1 loses its magnetic attraction to the push rod 3. The push rod 3 moves upward under the action of the locking spring 2, and the push rod 3 drives the rotating rod 4 to tilt. The rotating rod 4 drives the bottom end of the locking rod 6 by driving the connecting rod 5. The locking rod 6 rotates on the partition 13 to separate the hanging rod from the hook, and the umbrella cover 7 is opened. The parachute 12 pushes the umbrella cover 7 open under the driving force of the ejection spring 9, and the parachute 12 is ejected and opened.

[0045] Although the specific implementation of the utility model is described in detail in conjunction with the drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. An electrically controlled ejection device for a tubular sonde parachute, characterized in that: It comprises a sleeve (14) with an opening at one end, the opening of the sleeve (14) is hinged to one side of the umbrella cover (7), and the other side of the umbrella cover (7) is detachably connected to an electromagnet locking assembly located inside the sleeve (14), and the electromagnet locking assembly is used to lock the umbrella cover (7); A parachute assembly is arranged inside the sleeve (14), and the parachute assembly comprises a parachute (12) which is in compression contact with the bottom surface of the umbrella cover (7).

2. The electronically controlled ejection device for a tubular sonde parachute according to claim 1, characterized in that: A bottom plate (8) is provided at the bottom of the sleeve (14), a partition plate (13) is provided on the bottom plate (8), and the electromagnet locking assembly and the elastic parachute assembly are respectively located on both sides of the partition plate (13).

3. The electronically controlled ejection device for a tubular sonde parachute according to claim 2, characterized in that: The electromagnet locking assembly comprises a locking rod (6) and an electromagnet connecting rod mechanism, the rod body of the locking rod (6) is hingedly arranged on the partition (13), a hanging rod is arranged on the top end of the locking rod (6), a hook is arranged on the bottom surface of the umbrella cover (7), and the hanging rod is hung on the hook; The electromagnet connecting rod mechanism is hingedly arranged on the bottom end of the locking rod (6) and is used to drive the locking rod (6) to rotate on the partition (13) to achieve the separation of the hanging rod and the hook.

4. The electronically controlled ejection device for a tubular sonde parachute according to claim 3, characterized in that: The hanging rod and the hook are both L-shaped, and the hanging rod is hung on the hook when the locking rod (6) is in a vertical position.

5. The electronically controlled ejection device for a tubular sonde parachute according to claim 3, characterized in that: The electromagnet connecting rod mechanism comprises a rotating rod (4) having one end hinged on the partition (13), the other end of the rotating rod (4) being hinged to the connecting rod (5), and the other end of the connecting rod (5) being hinged to the locking rod (6); A through slot is provided in the middle of the rotating rod (4), a push rod (3) is movably arranged in the through slot, the push rod (3) is fixedly connected to the base plate (8) via a locking spring (2), an electromagnet (1) electrically connected to the upper machine is arranged in the inner ring of the locking spring (2), the electromagnet (1) is fixed on the base plate (8) and is magnetically connected to the push rod (3).

6. The electronically controlled ejection device for a tubular sonde parachute according to claim 5, characterized in that: The electromagnet (1) is a de-energized electromagnet.

7. The electronically controlled ejection device for a tubular sonde parachute according to claim 5, characterized in that: The rotating rod (4) and the connecting rod (5) are both arranged perpendicularly to the locking rod (6) when the push rod (3) is magnetically connected to the electromagnet (1).

8. The electronically controlled ejection device for a tubular sonde parachute according to claim 5, characterized in that: A cylindrical tube with an open end is arranged on the bottom plate (8), and the push rod (3) is slidably arranged on the inner wall of the cylindrical tube.

9. The electronically controlled ejection device for a tubular sonde parachute according to claim 2, characterized in that: The ejection parachute assembly also includes a platform (11), the bottom end of the parachute (12) abuts against the platform (11), and the bottom end of the platform (11) is fixedly connected to the bottom plate (8) via an ejection spring (9).

10. The electronically controlled ejection device for a tubular sonde parachute according to claim 9, characterized in that: A guide column (10) is arranged on the bottom plate (8), and the ejection spring (9) is sleeved on the guide column (10).

Images