An automatic inflation device and method for a photovoltaic pod

Abstract

The present application relates to the technical field of inflating device, in particular to an automatic inflating device and method for optoelectronic pod, the inflating assembly, the gas exchange regulating assembly and the gas valve connected in turn; the internal space of the gas exchange regulating assembly is in the shape of drum shaft, and is sequentially the first gas receiving space, the second compression space and the third gas conveying space according to the gas running direction; in the first gas receiving space: the telescopic inflating head of the inflating assembly contacts with one end of the thimble in the first gas receiving space of the gas exchange regulating assembly; in the second compression space: the other end of the thimble is externally sleeved with the compression spring; one end of the compression spring contacts with one side of the protruding part perpendicular to the axial direction of the thimble, and the other end contacts with the tube wall close to the third gas conveying space, so that the compression spring is limited in the second compression space; in the third gas conveying space: the other end of the thimble is movably connected with one end of the gas valve. The present application does not need manual continuous pressing when inflating, and avoids the problem of damage of the gas exchange gun or the gas valve caused by manual operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of inflating devices, in particular to an automatic inflating device and method for an optoelectronic pod. BACKGROUND

[0002] An airborne optoelectronic pod is often applied to platforms such as helicopters and unmanned aerial vehicles, and has a high flight altitude and a large temperature difference in the working environment of the optoelectronic pod. Therefore, a dry gas environment needs to be maintained in the pod to prevent the occurrence of frosting and fogging in the pod. For this purpose, the optoelectronic pod is usually inflated in the prior art, and a common way is to use a handheld air exchange gun to aim at a gas valve installed on a shell to continuously exchange air.

[0003] However, this way has many disadvantages: 1) manual continuous pressing of the air exchange gun is extremely labor-intensive; 2) due to a long air exchange time, the operator's operation of holding the air exchange gun is prone to problems of force tilting or uneven force, which causes damage to the air exchange gun or the gas valve.

[0004] Therefore, the technical personnel in the field urgently need to provide a new automatic inflating device and method for an optoelectronic pod to improve the technical problems existing in the prior art. SUMMARY

[0005] Therefore, the present application aims to overcome the defects in the prior art and provide an automatic inflating device and method for an optoelectronic pod.

[0006] An automatic inflating device for an optoelectronic pod comprises: an inflating assembly, an air exchange regulating assembly, and a gas valve connected in sequence.

[0007] The internal space of the air exchange regulating assembly is in the shape of a drum shaft, and sequentially comprises a first gas receiving space, a second compression space, and a third gas conveying space in the gas running direction.

[0008] In the first gas receiving space: the telescopic inflating head of the inflating assembly is in contact with one end of the thimble in the first gas receiving space of the air exchange regulating assembly, so that the first gas outlet on the thimble perpendicular to the axial direction moves between the first gas receiving space and the second compression space with the telescopic amount of the telescopic inflating head, to realize the closing or conduction of the first gas outlet.

[0009] In the second compression space: the other end of the thimble is externally sleeved with a compression spring; one end of the compression spring is in contact with one side of the protruding part on the thimble perpendicular to the axial direction, and the other end is in contact with the pipe wall close to the third gas conveying space, so that the compression spring is limited in the second compression space.

[0010] In the third gas receiving space: the other end of the plunger is movably connected with one end of the gas valve, so that the plunger is inserted into or pulled out of the gas valve under the action of the telescopic inflation head or the compression spring, until the gas passage of the gas valve is open or closed.

[0011] Preferably, the telescopic amount of the telescopic inflation head is equal to the displacement amount of the first gas outlet.

[0012] Moreover, the diameter of the first gas receiving space and the diameter of the one end of the plunger are matched, so that when the first gas outlet is completely in the first gas receiving space, the pipe wall of the first gas receiving space seals the first gas outlet.

[0013] Preferably, the plunger comprises a first circular table, a first connecting pipe, a second circular table and a second connecting rod which are fixedly connected in sequence and located on the same symmetry axis.

[0014] The first circular table is provided with a central through hole which is in communication with the telescopic inflation head; the first gas outlet is vertically provided on the first connecting pipe in the axial direction, and the first gas outlet is in communication with the central through hole of the first circular table.

[0015] The second circular table is provided with a plurality of second gas outlets which are in communication with the first gas outlet.

[0016] The two ends of the second connecting rod are in a sealed structure.

[0017] Preferably, the diameter of the end of the second connecting rod close to the gas valve is smaller than the inlet diameter of the gas valve, so that the second connecting rod and the gas valve are in clearance fit.

[0018] Preferably, the gas valve is installed in an embedded reserved hole provided on the spherical cabin shell of the photoelectric pod.

[0019] The gas exchange adjusting assembly is threadedly connected with the inner wall of the embedded reserved hole.

[0020] Preferably, a limiting ring is further provided in the first gas receiving space; the sizes of the two ends of the limiting ring are matched with the size of the output end of the telescopic inflation head and the size of the contact end of the plunger and the telescopic inflation head.

[0021] The outer surface of the limiting ring is fixedly connected with the pipe wall of the first gas receiving space, and the limiting ring and the first gas receiving space are in the same height close to the inflation assembly.

[0022] Preferably, the gas exchange adjusting assembly further comprises a sealing ring.

[0023] The top cover of the gas exchange adjusting assembly is provided with an annular step close to the limiting ring.

[0024] The sealing ring is located in a sealing groove formed by the annular step and the cantilevered annular flange at one end of the limiting ring.

[0025] An automatic inflation method for a photovoltaic pod is achieved by using an automatic inflation device for the photovoltaic pod.

[0026] The technical scheme has the following advantages:

[0027] The device of the present application does not need to be pressed manually during inflation, and based on the basis of not needing manual pressing, completely avoids the problem of damage to the air gun or air valve caused by the force tilting or uneven force of the operator holding the air gun. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present application or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0029] Figure 1 The schematic diagram of the overall device of example 1 installed on the ball pod shell;

[0030] Figure 2 The assembly drawing of the overall device structure of example 1;

[0031] Figure 3 The internal starting position diagram of the overall device of example 1;

[0032] Figure 4 The position diagram of the overall device of example 1 during inflation;

[0033] Figure 5 The schematic diagram of the thimble structure of example 1;

[0034] Figure 6 The sectional view of the thimble shown in Figure 5

[0035] Explanation of reference signs:

[0036] 1-ball pod shell, 2-air valve, 3-air exchange regulating assembly, 4-inflation assembly, 301-air exchange device base, 302-thimble, 303-compression spring, 304-air exchange device upper cover, 305-sealing ring, 306-limiting ring, 401-inflation connector seat, 402- telescopic inflation head, 403-inflation pipe. DETAILED DESCRIPTION

[0037] ​The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] Example 1

[0042] This embodiment discloses an automatic inflation device for a photoelectric pod, comprising: an inflation assembly 4, an air exchange regulating assembly 3, and an air valve 2 connected in sequence for air circulation; as shown below. Figure 1 The diagram shown is a schematic of the installation of the entire device in this embodiment onto the spherical chamber of the photoelectric pod to be inflated; Figure 1 Specifically, the gas valve 2 is installed in the embedded reserved hole on the outer shell 1 of the photoelectric pod.

[0043] The ventilation regulating component 3 is threadedly connected to the inner wall of the embedded pre-drilled hole; such as Figure 2 This is an exploded view of the overall structure assembly. It should be noted that the gas valve 2 used in this embodiment is a standard part, capable of maintaining a sealed, airtight environment inside and outside the sphere under static conditions. When ventilation is required, the valve core inside gas valve 2 needs to be pressed to allow air to pass through.

[0044] It should be noted that the essence of the inflation of the optoelectronic pod in the field is to maintain the air exchange.

[0045] Specifically:

[0046] As Figures 3-4 shown, the air exchange adjusting assembly 3 comprises an air exchange device base 301, a thimble 302, a compression spring 303, an air exchange device upper cover 304, and a sealing ring 305; wherein the air exchange device base 301 and the air exchange device upper cover 304 are fixedly connected through a plurality of bolts with a size parameter of M3x6, forming the shell of the air exchange adjusting assembly 3, and the machining precision ensures the position concentricity after the two are connected. When the two are installed together, sealant is applied at the contact position to ensure that there is no gas leakage during inflation;

[0047] Based on the fact that the air exchange device upper cover 304 and the inner wall of the air exchange device base 301 are respectively designed with a boss and a groove, the internal space of the air exchange adjusting assembly 3 is in the shape of a drum shaft, and in the order of the gas running direction, it is the first gas receiving space, the second compression space, and the third gas conveying space;

[0048] In the first gas receiving space: the telescopic inflation head 402 of the inflation assembly 4 contacts one end of the thimble 302 in the first gas receiving space of the air exchange adjusting assembly 3, so that the first gas outlet on the thimble 302 perpendicular to the axial direction moves between the first gas receiving space and the second compression space based on the telescopic amount of the telescopic inflation head 402, realizing the closing or conduction of the first gas outlet;

[0049] In the second compression space: the compression spring 303 is externally sleeved on the other end of the thimble 302; one end of the compression spring 303 contacts one side of the protruding part on the thimble 302 perpendicular to the axial direction, and the other end contacts the pipe wall close to the third gas conveying space, so that the compression spring 303 is limited in the second compression space; it should be noted that the compression spring 303 needs to be free to stretch and contract in the air exchange device base 301 during actual preparation; the outer diameter of the compression spring 303 is the same as the diameter of the second compression space, ensuring that the compression spring 303 will not tilt or the like;

[0050] In the third gas conveying space: the other end of the thimble 302 is movably connected with one end of the gas valve 2, so that the thimble 302 is inserted into or pulled out of the gas valve 2 under the action of the telescopic inflation head 402 or the compression spring 303, until the gas passage of the gas valve 2 is open or closed.

[0051] And in this embodiment, the inflation assembly 4 is composed of an inflation connector seat 401, a telescopic inflation head 402, and an inflation pipe 403; wherein the inflation connector seat 401 is sleeved outside the telescopic inflation head 402, and the telescopic inflation head 402 slides in the inflation connector seat 401 based on manual operation;

[0052] The dimension of the telescopic inflation head 402 near the first air inlet space is less than the dimension of the connection end between the telescopic inflation head 402 and the inflation tube 403.

[0053] The inflation connector 401 is installed on the upper cover 304 of the ventilation device by several M5×10 bolts, and is located on the same axis of symmetry as the ventilation adjustment component 3, so that the output end of the telescopic inflation head 402 contacts the pin 302 in the first air inlet space, thus laying the foundation for gas conduction.

[0054] It should be noted that in practical applications, the telescopic inflation head 402 may be limited to telescopic limit relative to the inflation connector seat 401 by means of snap-fit ​​telescopic limit, frictional telescopic limit, and threaded adjustment limit, etc., as long as it does not affect the basic air supply function.

[0055] Specifically, in this embodiment, frictional force is used for telescopic extension and limitation. There is a limiting frictional force between the telescopic inflation head 402 and the inflation connector seat 401. In actual application, the amount of extension and contraction is controlled by manually pressing or pulling out.

[0056] like Figures 2-3 As shown, the extension and retraction of the telescopic inflation head 402 is equal to the displacement of the first air outlet.

[0057] Furthermore, the diameter of the first air receiving space is matched with the diameter of one end of the ejector pin 302 so that when the first air outlet is completely within the first air receiving space, the pipe wall of the first air receiving space seals the first air outlet.

[0058] like Figures 2-6 As shown, the ejector pin 302 includes a first frustum, a first connecting tube, a second frustum, and a second connecting rod, which are located on the same axis of symmetry and are fixedly connected in sequence.

[0059] The first truncated cone has a central through hole that communicates with the telescopic inflation head 402; a first air outlet is provided perpendicular to the axial direction of the first connecting pipe, and the first air outlet and the central through hole of the first truncated cone are connected in a conductive manner.

[0060] The second truncated cone has several second air outlets, which are connected to the first air outlet.

[0061] The second connecting rod has sealed structures at both ends.

[0062] In addition, in this embodiment, the diameter of the end of the second connecting rod near the air valve 2 is smaller than the inlet diameter of the air valve 2, so that the second connecting rod and the air valve 2 are fitted with a clearance.

[0063] Meanwhile, in this embodiment, a limiting ring 306 is also provided in the first air-contacting space;

[0064] The outer surface of the limiting ring 306 is fixedly connected with the pipe wall of the first air connection space, and the limiting ring 306 and the first air connection space are at the same height near one end of the inflation assembly 4; the sizes of the two ends of the limiting ring 306 are respectively matched with the size of the output end of the telescopic inflation head 402, and the size of the contact end of the thimble 302 with the telescopic inflation head 402 is matched.

[0065] In order to reduce the leakage of gas, the sealing ring 305 is further included in the air exchange regulating assembly 3.

[0066] The top cover of the air exchange regulating assembly 3 is provided with an annular step near the limiting ring 306.

[0067] The sealing ring 305 is located in a sealing groove formed by the annular step and the cantilevered annular flange at one end of the limiting ring 306.

[0068] Embodiment 2

[0069] The embodiment further discloses an automatic inflation method for the optoelectronic pod on the basis of the embodiment 1, and is implemented by using the automatic inflation device for the optoelectronic pod in the embodiment 1.

[0070] The specific working process is as follows:

[0071] Preparation work:

[0072] Pre-assemble all components of the air exchange regulating assembly 3: when the air exchange operation is needed, the compression spring 303 is loaded into the second compression space to keep the spring freely extendable, the thimble 302 and the compression spring 303 are assembled, and it is ensured that the second circular table and the second connecting rod of the thimble 302 are also in the second compression space, after confirming that the thimble 302 can freely move in the air exchange device base 301, the air exchange device upper cover 304 is connected and fixed with the air exchange device base 301 through screws.

[0073] Pre-assemble the gas valve 2 at the embedded reserved hole on the ball pod shell 1;

[0074] Installation work:

[0075] S1. The air exchange regulating assembly 3 is tightly fixed with the inner wall of the embedded reserved hole on the ball pod shell 1 through the outer thread of the air exchange device base 301, and it is ensured that the thimble 302 contacts the gas valve 2 during the screwing process, but the valve core of the gas valve 2 is not extruded, as shown in Figure 3 .

[0076] S2. Assemble the inflation connector seat 401 and the telescopic inflation head 402, ensure that the telescopic inflation head 402 freely slides in the inflation connector seat 401, and fixedly connect the inflation pipe 403 with the telescopic inflation head 402. After the inflation assembly 4 is assembled, the inflation assembly 4 is fixed on the air exchange regulating assembly 3 through two M5x10 bolts;

[0077] S3. After all components are secured, proceed with the inflation operation:

[0078] During operation, simply press the telescopic inflation head 402 manually to... Figure 4 At the indicated position, the ejector pin 302 is squeezed by force, which in turn squeezes open the valve core of the air valve 2, so that the inflation channel is formed to perform the inflation operation. During the inflation process, the device of Example 1 does not require manual continuous pressing until inflation is completed.

[0079] S4. When ventilation is finished, manually pull the telescopic inflation head 402 out of the inflation connector seat 401. Figure 3 At the indicated position, the ejector pin 302 pops out under the external force of the compression spring 303, thereby closing the valve core of the gas valve 2 and ensuring that there is no gas leakage in the sphere chamber.

[0080] It should be noted that, as Figure 4 As shown, the gas flow in the ejector pin 302 passes sequentially through: the central through hole of the first truncated cone, the first air outlet, several second air outlets, and the interior of the compression spring 303. Finally, due to the clearance fit between the second connecting rod of the ejector pin 302 and the air valve 2, the gas enters the air valve 2 from the outer ring of the second connecting rod.

[0081] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An automatic inflation device for a photoelectric pod, characterized in that, include: The inflation assembly (4), the ventilation regulating assembly (3), and the air valve (2) are connected in sequence. The internal space of the ventilation regulating component (3) is in the shape of a drum shaft, and in the order of gas flow direction, it consists of the first gas receiving space, the second compression space and the third gas delivery space; In the first air inlet space: the telescopic inflation head (402) of the inflation assembly (4) contacts one end of the first air inlet space of the air exchange adjustment assembly (3) and the ejector pin (302) so that the first air outlet on the ejector pin (302) perpendicular to the axial direction moves between the first air inlet space and the second compression space based on the telescopic inflation head (402) extension amount, thereby achieving the sealing or opening of the first air outlet; In the second compression space: a compression spring (303) is sleeved on the other end of the ejector pin (302); and one end of the compression spring (303) contacts the side of the protrusion on the ejector pin (302) perpendicular to the axial direction, and the other end contacts the pipe wall near the third gas delivery space, so that the compression spring (303) is limited to the second compression space. In the third gas delivery space: the other end of the ejector pin (302) is movably connected to one end of the gas valve (2) so that the ejector pin (302) can be inserted into or pulled out of the gas valve (2) under the action of the telescopic inflation head (402) or the compression spring (303) until the gas passage of the gas valve (2) is opened or closed.

2. The automatic inflation device for a photoelectric pod according to claim 1, characterized in that, The extension and retraction of the telescopic inflation head (402) is equal to the displacement of the first air outlet; Furthermore, the diameter of the first air receiving space is matched with the diameter of one end of the ejector pin (302) so that when the first air outlet is completely in the first air receiving space, the pipe wall of the first air receiving space seals the first air outlet.

3. An automatic inflation device for a photoelectric pod according to claim 1, characterized in that, The ejector pin (302) includes a first frustum, a first connecting tube, a second frustum, and a second connecting rod, which are located on the same axis of symmetry and are fixedly connected in sequence; The first truncated cone has a central through hole that communicates with the telescopic inflation head (402); a first air outlet is provided perpendicular to the axial direction of the first connecting pipe, and the first air outlet and the central through hole of the first truncated cone are connected in a conductive manner. The second truncated cone has several second air outlets, which are connected to the first air outlet. The second connecting rod has sealed structures at both ends.

4. An automatic inflation device for a photoelectric pod according to claim 3, characterized in that, The diameter of the second connecting rod near the air valve (2) is smaller than the inlet diameter of the air valve (2) so that the second connecting rod and the air valve (2) are properly fitted.

5. An automatic inflation device for a photoelectric pod according to claim 1, characterized in that, The air valve (2) is installed in the embedded reserved hole on the outer shell (1) of the photoelectric pod; The ventilation adjustment component (3) is threaded to the inner wall of the embedded pre-drilled hole.

6. An automatic inflation device for a photoelectric pod according to claim 1, characterized in that, A limiting ring (306) is also provided in the first air inlet space; the dimensions of the two ends of the limiting ring (306) are respectively matched with the output end of the telescopic inflation head (402) and the contact end of the ejector pin (302) with the telescopic inflation head (402); The outer surface of the limiting ring (306) is fixedly connected to the pipe wall of the first air inlet space, and the limiting ring (306) and the end of the first air inlet space near the inflation component (4) are at the same height.

7. An automatic inflation device for a photoelectric pod according to claim 6, characterized in that, The ventilation regulating assembly (3) also includes: a sealing ring (305); The top cover of the ventilation regulating component (3) is provided with an annular step near the limiting ring (306); The sealing ring (305) is located in the sealing groove formed by the annular step and the cantilevered annular flange at one end of the limiting ring (306).

8. An automatic inflation method for a photoelectric pod, characterized in that, This is achieved by applying an automatic inflation device for an optoelectronic pod as described in any one of claims 1-7.

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