Multi-opening-degree door opening device for launching box

Abstract

The utility model discloses a multi-opening door opening device for a launching box, which comprises a supporting seat, a push rod is arranged on the supporting seat in a sliding manner, one end of the push rod is connected with a reciprocating driving device for driving the push rod to linearly slide in a reciprocating manner, and the other end of the push rod is hinged with a box door connecting rod; a plurality of wedge blocks corresponding to different strokes are arranged on one side of the push rod in the reciprocating motion direction of the push rod, pressed slopes are symmetrically arranged on the two sides of the ends, close to the push rod, of the wedge blocks, and the ends, away from the push rod, of the wedge blocks are connected with the in-place switch in an abutting mode through elastic pieces. The push rod is sleeved with an extrusion inclined face which is matched with the pressed inclined face and extrudes the pressed inclined face. According to the utility model, by controlling the stroke of the push rod, the box door can be automatically opened at different opening degrees.

Description

Technical Field

[0001] The utility model belongs to the technical field of box door opening devices and relates to a multi-opening door opening device for a launch box. Background Art

[0002] The launch box is a box structure for storing various types of aircraft. In order to protect the aircraft inside, the launch box is provided with a box cover that can be opened and closed. When the aircraft needs to be ejected, repaired, maintained, tested, and installed, the box door needs to be opened. In the prior art, in order to ensure the timeliness and safety of the box door opening, an action mechanism such as an electric push rod is usually used to drive the box door to open. Although the opening efficiency and safety of the box door are guaranteed, the door opening stroke of the existing action mechanism is fixed, so it can only drive the box door to open with a fixed opening. However, in actual use, the launch box has different opening requirements under different use environments. For example, during the launch of the aircraft, the box door needs to be fully opened, during the repair and maintenance process, the box door only needs to be opened to the opening that the maintenance equipment can enter, and during the test installation process, the box door only needs to be opened to the opening that allows the folded aircraft to enter. If the box door is fully opened with the maximum opening in any case, it will not only waste the time of opening the box door, but also cause impurities in the external environment to enter the launch box.

[0003] Therefore, in view of the defect that the stroke of the existing action mechanism for opening the door of the launch box is fixed, resulting in a fixed door opening, the utility model discloses a multi-opening door opening device for the launch box. Utility Model Content

[0004] The utility model aims to provide a multi-opening door opening device for a launch box, which can realize automatic opening of the box door with different opening degrees by controlling the stroke of a push rod.

[0005] The utility model is realized by the following technical solutions:

[0006] A multi-opening door opening device for a launch box, comprising a support seat, a push rod slidably arranged on the support seat, one end of the push rod is connected to a reciprocating drive device that drives the push rod to slide reciprocatingly linearly, and the other end of the push rod is hinged to a box door connecting rod; one side of the push rod is provided with a plurality of wedge blocks corresponding to different strokes along the reciprocating movement direction of the push rod, and compression inclined surfaces are symmetrically arranged on both sides of one end of the wedge block close to the push rod, and one end of the wedge block away from the push rod is connected to an in-place switch through an elastic member, and the outside of the push rod is covered with an extrusion inclined surface that cooperates with and squeezes the compression inclined surface.

[0007] In order to better realize the utility model, further, a stroke protection switch is arranged on one side of the push rod, and a protection contact piece capable of contacting with the stroke protection switch is arranged on the side of the push rod close to the stroke protection switch.

[0008] In order to better realize the utility model, further, a stroke protection switch is provided on one side of the push rod corresponding to the maximum stroke position and the minimum stroke position of the push rod respectively, and the protection contact piece is located between the maximum stroke position and the minimum stroke position.

[0009] In order to better realize the utility model, further, a guide rail is arranged on the support seat, a guide block is sleeved on the outside of the push rod, and the guide block is connected to the guide rail in a sliding fit.

[0010] In order to better realize the utility model, further, a floating platform is provided on the top of the guide block, one end of the floating platform is hinged to one end of the top of the guide block, the other end of the floating platform is connected to the other end of the top of the guide block through a fine-tuning screw, and a push rod clamp is provided on the top of the floating platform.

[0011] In order to better realize the utility model, further, laser calibrators are provided at both ends of the push rod.

[0012] In order to better realize the utility model, further, a bracket is provided on one side of the push rod along the reciprocating movement direction of the push rod, and an installation slide groove is provided on the bracket corresponding to different strokes of the push rod, a wedge block is slidably provided in the installation slide groove, one end of the wedge block extends to the outside of the installation slide groove and is provided with a pressure inclined surface, the other end of the wedge block extends to the inside of the installation slide groove and is provided with an elastic member, and an in-position switch is provided at the bottom of the installation slide groove.

[0013] In order to better realize the utility model, further, the elastic member includes a spring, one end of the spring is connected to the wedge block, a limiting flange is arranged inside the mounting slot, and the other end of the spring abuts against the limiting flange.

[0014] In order to better realize the utility model, further, the reciprocating drive device includes an electric telescopic rod, and the end of the electric telescopic rod is connected to one end of the push rod.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] The utility model drives the push rod and the door connecting rod to move reciprocatingly linearly through the reciprocating drive device, and then drives the door to open through the door connecting rod. At the same time, a wedge block is arranged on one side of the push rod corresponding to the different strokes of the push rod. When the push rod moves to the corresponding stroke, the compressed inclined surface on the wedge block can be squeezed, so that the wedge block further squeezes the elastic member. After the elastic member is compressed, one end of the wedge block contacts the in-position switch, so that the circuit connected to the in-position switch is turned on, so as to control the reciprocating drive device to stop at the corresponding stroke, and then the door can be driven to open with different opening degrees. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a multi-opening door opening device for a launch box;

[0018] Figure 2 for Figure 1 A partial enlarged view of point B;

[0019] Figure 3 It is a schematic diagram of the contact between the wedge block and the in-position switch;

[0020] Figure 4 for Figure 1 AA section view.

[0021] Among them: 1-support seat; 2-push rod; 3-reciprocating drive device; 4-door connecting rod; 5-wedge block; 6-elastic member; 7-in-place switch; 8-stroke protection switch; 9-protection contact piece; 10-guide rail; 11-guide block; 12-floating platform; 13-fine adjustment screw; 14-push rod clamp; 51-pressure inclined surface; 52-extrusion inclined surface. DETAILED DESCRIPTION

[0022] The following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the utility model explicitly states otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0025] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and so on in the present utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0026] Embodiment 1:

[0027] A multi-opening door opening device for a launch box in this embodiment includes a support seat 1, on which a push rod 2 is slidably arranged, one end of the push rod 2 is connected to a reciprocating drive device 3 for driving the push rod 2 to slide reciprocatingly linearly, and the other end of the push rod 2 is hinged to a box door connecting rod 4; one side of the push rod 2 is provided with a plurality of wedge blocks 5 corresponding to different strokes along the reciprocating movement direction of the push rod 2, and compression slopes 51 are symmetrically arranged on both sides of one end of the wedge block 5 close to the push rod 2, and the end of the wedge block 5 away from the push rod 2 is connected to the in-position switch 7 through an elastic member 6, and the outside of the push rod 2 is provided with an extrusion slope 52 that cooperates with and squeezes the compression slope 51.

[0028] like Figure 1 As shown, one side of the push rod 2 is provided with three groups of wedges 5 in sequence along the reciprocating linear sliding direction of the push rod 2. The positions of the three groups of wedges 5 from left to right correspond to the first stroke, the second stroke, and the third stroke of the push rod 2, respectively. When the push rod 2 moves linearly to the first stroke, the box door is driven to open with the first opening through the box door connecting rod 4. When the push rod 2 moves linearly to the second stroke, the box door is driven to open with the second opening through the box door connecting rod 4. When the push rod 2 moves linearly to the third stroke, the box door is driven to open with the third opening through the box door connecting rod 4. The in-position switch 7 is connected to the external control circuit through a cable. The external control circuit adopts the existing technology and is not an improvement point of the patent, so its specific circuit and the principle of controlling the start and stop of the reciprocating drive device 3 are not repeated here.

[0029] Taking the first stroke as an example, when the push rod 2 moves linearly to the first stroke under the drive of the reciprocating drive device 3, the extrusion slope 52 outside the push rod 2 contacts the compression slope 51 outside the first set of wedge blocks 5 and compresses the compression slope 51, thereby forcing the wedge blocks 5 to slide in the direction away from the push rod 2, further compressing the elastic member 6. After the elastic member 6 is compressed, one end of the first set of wedge blocks 5 contacts the in-position switch 7 corresponding to the first stroke position, and the in-position switch 7 turns on the external control circuit, and the controller in the external control circuit controls the reciprocating drive device 3 to stop. At this time, the push rod 2 and the door connecting rod 4 stop at the first stroke, thereby keeping the door open at the first opening.

[0030] When the door opening needs to be changed, the controller controls the reciprocating drive device 3 to restart, which can drive the push rod 2 to continue to move linearly to other travel positions, thereby driving the door to open at different openings. When the push rod 2 and the door connecting rod 4 are stationary, the door can also be kept in a relatively stationary opening state.

[0031] Embodiment 2:

[0032] A multi-opening door opening device for a launch box, improved on the basis of embodiment 1, such as Figure 1 As shown, a stroke protection switch 8 is arranged on one side of the push rod 2 , and a protection contact piece 9 capable of contacting the stroke protection switch 8 is arranged on the side of the push rod 2 close to the stroke protection switch 8 .

[0033] The stroke protection switch 8 is set corresponding to the extreme movement position of the push rod 2. When the push rod 2 moves linearly to the extreme position, the protection contact 9 contacts the stroke protection switch 8, and the stroke protection switch 8 turns on the external control circuit. The external control circuit controls the reciprocating drive device 3 to stop, thereby preventing the reciprocating drive device 3 from driving the push rod 2 to move too far and causing damage to the equipment.

[0034] Furthermore, a stroke protection switch 8 is provided on one side of the push rod 2 corresponding to the maximum stroke position and the minimum stroke position of the push rod 2, and the protection contact piece 9 is located between the maximum stroke position and the minimum stroke position. By providing the stroke protection switch 8 at the maximum stroke position and the minimum stroke position, the maximum stroke and the minimum stroke of the push rod 2 are limited, effectively preventing the push rod 2 and the door connecting rod 4 from driving the door to move over.

[0035] The other parts of this embodiment are the same as those of Embodiment 1, and thus will not be described in detail.

[0036] Embodiment 3:

[0037] A multi-opening door opening device for a launch box, improved on the basis of embodiment 1 or 2, such as Figure 4 As shown, the support seat 1 is provided with a guide rail 10, and the outer part of the push rod 2 is provided with a guide block 11, and the guide block 11 is slidably connected with the guide rail 10. Through the slidably connected structure between the guide block 11 and the guide rail 10, the linear movement process of the push rod 2 is guided, so that the push rod 2 is strictly linearly moved in the set direction, thereby ensuring that the final door is opened more smoothly.

[0038] Furthermore, a floating platform 12 is provided on the top of the guide block 11, one end of the floating platform 12 is hinged to one end of the top of the guide block 11, and the other end of the floating platform 12 is connected to the other end of the top of the guide block 11 through a fine-tuning screw 13, and a push rod clamp 14 is provided on the top of the floating platform 12.

[0039] The push rod 2 is fixedly mounted on the top of the floating platform 12 through the push rod clamp 14. One end of the bottom of the floating platform 12 is hinged to one end of the top of the guide block 11 through the support ear and the hinge shaft, so that the floating platform 12 can rotate around the hinge. The other end of the floating platform 12 is provided with a U-shaped slot, and a fine adjustment screw 13 is inserted in the U-shaped slot. The fine adjustment screw 13 is abutted against the end face of the U-shaped slot through a gasket, and the threaded end of the fine adjustment screw is threadedly matched with the corresponding threaded hole on the top of the guide block 11. By rotating the fine adjustment screw 13, the floating platform 12 is lifted, and the axis direction of the push rod 2 is adjusted.

[0040] Furthermore, laser calibrators are provided at both ends of the push rod 2, and two groups of push rod clamps 14 are provided at both ends of the outside of the push rod 2, each group of push rod clamps 14 is connected to the floating stage 12, and the lifting height at both ends of the push rod 2 is adjusted by the fine-tuning screws 13, thereby adjusting the axis direction of the push rod 2, and the laser calibrators at both ends of the push rod 2 are used to detect and calibrate the axis direction of the push rod 2, so that the coaxiality between the axis of the push rod 2 and the set door driving axis meets the standard, thereby ensuring the position accuracy of the subsequent opening of the door.

[0041] The other parts of this embodiment are the same as those of Embodiment 1 or 2, and thus will not be described in detail.

[0042] Embodiment 4:

[0043] A multi-opening door opening device for a launch box, improved on the basis of any one of embodiments 1-3, such as Figure 2 and Figure 3 As shown, a bracket is provided on one side of the push rod 2 along the reciprocating movement direction of the push rod 2, and a mounting groove is provided on the bracket corresponding to different strokes of the push rod 2. A wedge block 5 is slidably provided in the mounting groove, one end of the wedge block 5 extends to the outside of the mounting groove and is provided with a pressure inclined surface 51, and the other end of the wedge block 5 extends to the inside of the mounting groove and is provided with an elastic member 6, and an in-position switch 7 is provided at the bottom of the mounting groove.

[0044] Furthermore, the elastic member 6 comprises a spring, one end of which is connected to the wedge block 5 , a limiting flange is arranged inside the mounting slot, and the other end of the spring abuts against the limiting flange.

[0045] The other parts of this embodiment are the same as any one of Embodiments 1-3, so they will not be repeated here.

[0046] Embodiment 5:

[0047] A multi-opening door opening device for a launch box is improved on the basis of any one of embodiments 1-4, wherein the reciprocating drive device 3 includes an electric telescopic rod, and the end of the electric telescopic rod is connected to one end of the push rod 2.

[0048] The other parts of this embodiment are the same as any one of Embodiments 1-4, so they are not described again.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A multi-opening door opening device for a launch box, comprising a support seat (1), characterized in that: A push rod (2) is slidably arranged on the support seat (1), one end of the push rod (2) is connected to a reciprocating drive device (3) for driving the push rod (2) to slide back and forth linearly, and the other end of the push rod (2) is hinged to a door connecting rod (4); a plurality of wedge blocks (5) are arranged on one side of the push rod (2) along the reciprocating movement direction of the push rod (2) corresponding to different strokes, and pressure inclined surfaces (51) are symmetrically arranged on both sides of one end of the wedge block (5) close to the push rod (2), and one end of the wedge block (5) away from the push rod (2) is connected to the in-position switch (7) through an elastic member (6), and an extrusion inclined surface (52) is sleeved on the outside of the push rod (2) for cooperating with and extruding the pressure inclined surface (51).

2. A multi-opening door opening device for a launch box according to claim 1, characterized in that: A stroke protection switch (8) is provided on one side of the push rod (2), and a protection contact piece (9) capable of contacting the stroke protection switch (8) is provided on the side of the push rod (2) close to the stroke protection switch (8).

3. A multi-opening door opening device for a launch box according to claim 2, characterized in that: A stroke protection switch (8) is provided on one side of the push rod (2) respectively corresponding to the maximum stroke position and the minimum stroke position of the push rod (2), and the protection contact piece (9) is located between the maximum stroke position and the minimum stroke position.

4. A multi-opening door opening device for a launch box according to any one of claims 1 to 3, characterized in that: A guide rail (10) is provided on the support seat (1), a guide block (11) is sleeved on the outside of the push rod (2), and the guide block (11) is connected to the guide rail (10) in a sliding manner.

5. A multi-opening door opening device for a launch box according to claim 4, characterized in that: A floating platform (12) is arranged on the top of the guide block (11), one end of the floating platform (12) is hinged to one end of the top of the guide block (11), the other end of the floating platform (12) is connected to the other end of the top of the guide block (11) via a fine adjustment screw (13), and a push rod clamp (14) is arranged on the top of the floating platform (12).

6. A multi-opening door opening device for a launch box according to claim 5, characterized in that: Laser calibrators are provided at both ends of the push rod (2).

7. A multi-opening door opening device for a launch box according to any one of claims 1 to 3, characterized in that: A bracket is provided on one side of the push rod (2) along the reciprocating direction of the push rod (2), and a mounting groove is provided on the bracket corresponding to different strokes of the push rod (2). A wedge block (5) is slidably provided in the mounting groove, one end of the wedge block (5) extends to the outside of the mounting groove and is provided with a pressure inclined surface (51), and the other end of the wedge block (5) extends to the inside of the mounting groove and is provided with an elastic member (6), and an in-position switch (7) is provided at the bottom of the mounting groove.

8. A multi-opening door opening device for a launch box according to claim 7, characterized in that: The elastic member (6) comprises a spring, one end of which is connected to the wedge block (5), a limiting flange is provided inside the mounting slide groove, and the other end of the spring abuts against the limiting flange.

9. A multi-opening door opening device for a launch box according to any one of claims 1 to 3, characterized in that: The reciprocating drive device (3) comprises an electric telescopic rod, the end of which is connected to one end of the push rod (2).

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