Pop-up sliding block structure

Abstract

The utility model discloses a structure of a pop-up slide block, which comprises a wear-resistant bushing mounted in a machine body, a slide block is arranged in the wear-resistant bushing in a sliding manner, and a limiting piece is fixedly mounted at one end in the wear-resistant bushing; one end of the sliding block extends to the outside of the wear-resistant bushing, and the end, located in the wear-resistant bushing, of the sliding block abuts against the limiting piece; at least one group of elastic pieces are arranged between the sliding block and the limiting piece, one end of each elastic piece is fixedly connected with the limiting piece, and the other end of each elastic piece abuts against the end, located in the wear-resistant lining, of the sliding block; the aircraft body can be guided through the sliding block in the aircraft body ejection process, after the aircraft body is completely ejected to take off, the sliding block can be rapidly and automatically disengaged from the aircraft body, and the aerodynamic performance of the aircraft body is not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine body ejection and relates to a structure of a pop-up slider. Background Art

[0002] The aircraft is normally stored inside an ejection box. To ensure smooth and rapid ejection from the ejection box, conventional techniques typically employ a fixedly mounted raised slider on the surface of the aircraft, which is then slidably connected to guide structures such as chutes and rails within the ejection box. When ejection is required, a force is applied to the aircraft, causing the slider to slide along the chutes and rails, thereby ensuring the aircraft is ejected from the ejection box along a predetermined trajectory.

[0003] However, the above-mentioned existing sliders are all fixedly installed on the outside of the fuselage. After the fuselage is ejected from the ejection box, the sliders are still fixed on the outside of the fuselage and fly with the fuselage, which increases the weight and external volume of the fuselage, and further increases the air resistance of the fuselage during flight.

[0004] Therefore, the present invention addresses the problem that the existing slider cannot be separated from the body after the body is ejected, and discloses a pop-up slider structure. Utility Model Content

[0005] The purpose of the utility model is to provide a pop-up slider structure, which can guide the aircraft during the ejection process. After the aircraft is completely ejected and takes off, the slider can be quickly and automatically detached from the aircraft without affecting the aerodynamic performance of the aircraft.

[0006] The utility model is achieved through the following technical solutions:

[0007] A structure of a pop-up slider includes a wear-resistant bushing installed inside a body, a slider is slidingly provided inside the wear-resistant bushing, and a limiting member is fixedly installed at one end inside the wear-resistant bushing; one end of the slider extends to the outside of the wear-resistant bushing, and the end of the slider located inside the wear-resistant bushing abuts against the limiting member; at least one group of elastic members is provided between the slider and the limiting member, one end of the elastic member is fixedly connected to the limiting member, and the other end of the elastic member abuts against the end of the slider located inside the wear-resistant bushing.

[0008] The wear-resistant bushing is fixedly embedded in the fuselage. The end of the slider extending outside the wear-resistant bushing is slidably connected to a chute on the ejection frame. The end of the slider extending outside the wear-resistant bushing is held in place by a stopper on the ejection frame, preventing the slider from being ejected from the wear-resistant bushing under the action of an elastic member. When the slider is held in place by the stopper on the ejection frame, the elastic member between the slider and the stopper is compressed. When the fuselage is ejected from the ejection frame under power, the end of the slider extending outside the wear-resistant bushing slides in the chute on the ejection frame, driving the fuselage to slide along the height of the ejection frame. When the fuselage is fully ejected from the ejection frame, the end of the slider extending outside the wear-resistant bushing also disengages from the chute. At this point, the end of the slider is no longer held in place by the stopper on the ejection frame. As a result, the elastic force of the elastic member causes the slider to rebound from the wear-resistant bushing, separating the fuselage from the slider after ejection.

[0009] In order to better realize the present utility model, further, the limiting part includes a limiting column and a limiting screw plug. The limiting screw plug is fixedly installed at one end inside the wear-resistant bushing, and the limiting column is fixedly installed at one end of the limiting screw plug close to the slider. One end of the limiting column abuts against the slider, and the outer sleeve of the limiting column is provided with an elastic part.

[0010] In order to better implement the present invention, further, a fixing hole is provided at one end of the limiting column close to the limiting screw plug, and one end of the elastic member is fixedly inserted into the interior of the fixing hole.

[0011] In order to better realize the present invention, further, a vent hole is provided inside the limiting screw plug, one end of the vent hole is communicated with the fixing hole, and the other end of the vent hole is communicated with the external environment.

[0012] In order to better realize the present invention, further, the slider extends from the first end of the wear-resistant bushing, the second end of the wear-resistant bushing is provided with a mounting step hole, one end of the limit screw plug passes through the limit step hole and extends to the outside of the wear-resistant bushing, and the outer thread of the end of the limit screw plug extending to the outside of the wear-resistant bushing is provided with a nut.

[0013] In order to better implement the present invention, further, a notch is provided on the end surface of the limiting column close to the slider.

[0014] In order to better implement the present invention, further, a washer is provided between the nut and the end surface of the second end of the wear-resistant bushing.

[0015] In order to better realize the present invention, further, the slider and the wear-resistant bushing are clearance-fitted.

[0016] In order to better realize the present invention, further, a limiting portion is provided on one end of the sliding block extending to the outside of the wear-resistant bushing.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] The utility model adopts the method of embeddedly fixing a wear-resistant bushing in an interior of an aircraft body, fixing a limiting piece at one end of an inner hole of the wear-resistant bushing, slidingly installing a slider in the inner hole of the wear-resistant bushing, and arranging an elastic piece in a compressed state between the slider and the limiting piece; during the ejection process of the aircraft body, the ejection of the aircraft body is guided by sliding cooperation between the slider and the slide groove on the ejection frame; after the aircraft body is separated from the ejection frame, the slider is ejected and separated from the wear-resistant bushing under the elastic action provided by the elastic piece, so that the aircraft body is separated from the slider after ejection and take-off, thereby reducing the weight of the aircraft body, reducing the external volume of the aircraft body, and further reducing the air resistance of the aircraft body during flight. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a pop-up slider;

[0020] Figure 2 It is a structural diagram of the limiting component;

[0021] Figure 3 The figure below is the installation diagram of the limiter.

[0022] Among them: 1-wear-resistant bushing; 2-slider; 3-limiting part; 4-elastic part; 5-body; 31-limiting column; 32-limiting screw plug; 33-fixing hole; 34-vent; 35-nut; 36-notch; 37-washer. DETAILED DESCRIPTION

[0023] The following detailed description is illustrative and is 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.

[0024] 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 present invention. As used herein, unless otherwise expressly specified in the present invention, 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, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] For the convenience of description, if the words "up", "down", "left" and "right" appear in this utility model, 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 this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they cannot be understood as limiting the utility model.

[0026] Explanation of terms: The terms "install", "connect", "connect", "fix" and so on in this 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, a direct connection or an indirect connection through an intermediate medium, 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 this utility model can be understood according to the specific circumstances.

[0027] Example 1:

[0028] A pop-up slider structure of this embodiment is as follows: Figure 1 As shown, it includes a wear-resistant bushing 1 installed inside the machine body 5, a slider 2 is slidingly provided inside the wear-resistant bushing 1, and a limiting member 3 is fixedly installed at one end inside the wear-resistant bushing 1; one end of the slider 2 extends to the outside of the wear-resistant bushing 1, and the end of the slider 2 located inside the wear-resistant bushing 1 abuts against the limiting member 3; at least one group of elastic members 4 is provided between the slider 2 and the limiting member 3, one end of the elastic member 4 is fixedly connected to the limiting member 3, and the other end of the elastic member 4 abuts against the end of the slider 2 located inside the wear-resistant bushing 1.

[0029] The body 5 is provided with a stepped mounting hole, into which the wear-resistant bushing 1 is inserted and fixedly mounted, with a transition fit between the wear-resistant bushing 1 and the stepped mounting hole. The wear-resistant bushing 1 has an inner hole along its own axis, with a limiter 3 fixedly mounted at one end of the inner hole. A slider 2 is slidably mounted within the inner hole, and the end of the slider 2 located within the inner hole abuts against the end of the limiter 3 located within the inner hole. A compressed elastic member 4 is provided between the slider 2 and the limiter 3. The other end of the slider 2 extends to the outside of the inner hole of the wear-resistant bushing 1. The end of the slider 2 extending outside the wear-resistant bushing 1 is slidably connected to a slide groove on the ejection frame, and the end surface of the slider 2 extending outside the wear-resistant bushing 1 is tightened by the limiter device on the ejection frame, so that when the body 5 is not ejected from the ejection frame, the elastic member 4 is always kept in a compressed state, and the slider 2 is prevented from falling out of the wear-resistant bushing 1.

[0030] During ejection, the end of the slider 2 extending outside the wear-resistant bushing 1 slides along the slide groove on the ejection frame under the action of the power until the body 5 is released from the ejection frame. At this time, the end of the slider 2 extending outside the wear-resistant bushing 1 is no longer subject to the tightening and limiting effect of the limiting device, and the elastic member 4 ejects the slider 2 in the opposite direction, causing the slider 2 to completely disengage from the wear-resistant bushing 1, thus ensuring that the body 5 can be completely separated from the slider 2 after ejection. By ejecting the slider 2, the body 5 is prevented from carrying the slider 2 with it during flight, which reduces the external volume of the body 5, reduces the weight of the body 5, and reduces the flight resistance of the body 5.

[0031] Example 2:

[0032] A pop-up slider structure is improved on the basis of embodiment 1, such as Figure 2 and Figure 3 As shown, the limiting member 3 includes a limiting column 31 and a limiting screw plug 32. The limiting screw plug 32 is fixedly installed at one end inside the wear-resistant bushing 1. The limiting column 31 is fixedly installed at one end of the limiting screw plug 32 close to the slider 2. One end of the limiting column 31 abuts against the slider 2, and an elastic member 4 is provided on the outside of the limiting column 31.

[0033] The limiting post 31 is coaxially fixedly connected to the limiting plug screw 32. The limiting plug screw 32 is fixedly mounted on one end of the inner hole of the wear-resistant bushing 1, while the other end of the limiting plug screw 32 extends into the inner hole of the wear-resistant bushing 1 and is integrally connected to one end of the limiting post 31. The other end of the limiting post 31 abuts the end face of the slider 2 located within the inner hole of the wear-resistant bushing 1. An elastic member 4 is provided between the slider 2 and the limiting plug screw 32. The elastic member 4 is sleeved on the outside of the limiting post 31, and one end of the elastic member 4 is fixedly connected to the limiting post 31, while the other end of the elastic member 4 abuts the end face of the slider 2. By setting a limit column 31 and a limit screw plug 32, the installation position of the slider 2 in the inner hole of the wear-resistant bushing 1 is limited to ensure that the slider 2 is inserted into the inner hole of the wear-resistant bushing 1 to an appropriate depth, avoiding the slider 2 being inserted too shallowly, resulting in an unstable installation, and avoiding the slider 2 being inserted too deep, resulting in the subsequent slider 2 being unable to be ejected from the wear-resistant bushing 1 in time.

[0034] Furthermore, a fixing hole 33 is provided at one end of the limiting post 31 near the limiting screw plug 32, and one end of the elastic member 4 is fixedly inserted into the fixing hole 33. The limiting member 4 includes a limiting spring, one end of which is fixedly inserted into the fixing hole 33 to achieve a fixed connection with the limiting post 31, and the other end of the limiting spring abuts against the end surface of the slider 2.

[0035] Furthermore, a vent hole 34 is provided inside the stop screw 32. One end of the vent hole 34 communicates with the fixing hole 33, and the other end of the vent hole 34 communicates with the external environment. The provision of the vent hole 34 allows the environment in the inner hole of the wear-resistant bushing 1 to communicate with the external environment, thereby ensuring that the air pressure inside the wear-resistant bushing 1 is consistent with the external environment, thereby preventing the formation of negative pressure inside the wear-resistant bushing 1 that may affect the ejection and separation of the slider 2.

[0036] Furthermore, a notch 36 is provided on the end surface of the limiting column 31 close to the slider 2. By providing the notch 36, the notch 36 can be rotated by a screwdriver, thereby realizing the convenient installation of the limiting member 3 inside the wear-resistant bushing 1.

[0037] The rest of this embodiment is the same as that of embodiment 1, so it will not be described again.

[0038] Example 3:

[0039] A pop-up slider structure is improved on the basis of embodiment 1 or 2, such as Figure 2 and Figure 3 As shown, the slider 2 extends from the first end of the wear-resistant bushing 1, and the second end of the wear-resistant bushing 1 is provided with a mounting step hole. One end of the limit screw plug 32 extends through the limit step hole to the outside of the wear-resistant bushing 1, and the outer side of the end of the limit screw plug 32 extending to the outside of the wear-resistant bushing 1 is threadedly sleeved with a nut 35. The step surface of the mounting step hole is axially limitedly connected to the end face of the limit screw plug 32, and the inner hole of the mounting step hole is clearance-fitted with the limit screw plug 32. The outer side of the end of the limit screw plug 32 extending to the outside of the wear-resistant bushing 1 is threadedly sleeved with a nut 35. The limit screw plug 32 is fixed by tightening the nut 35.

[0040] Furthermore, a washer 37 is provided between the nut 35 and the end surface of the second end of the wear-resistant bushing 1 .

[0041] The rest of this embodiment is the same as that of embodiment 1 or 2, and thus will not be described in detail.

[0042] Example 4:

[0043] A pop-up slider structure is improved based on any one of Examples 1-3, wherein the slider 2 and the wear-resistant bushing 1 have a clearance fit, with the clearance between the slider 2 and the inner hole of the wear-resistant bushing 1 being 0.05mm-0.1mm. This clearance fit ensures that the slider 2 can be smoothly removed from the inner hole of the wear-resistant bushing 1, while the clearance should not be too large, as it may cause the slider 2 to become unstable during the sliding and removal process.

[0044] The rest of this embodiment is the same as any one of Embodiments 1-3, so it will not be described again.

[0045] Example 5:

[0046] A pop-up slider structure, improved upon any one of Examples 1-4, wherein a limiting portion is provided at one end of the slider 2 extending outside the wear-resistant bushing 1. The limiting portion can be configured as any one of a limiting surface, a limiting groove, and a limiting notch, with the specific configuration being compatible with the limiting device on the ejection frame. For example, if the limiting device is a ejection pin, the limiting portion can be configured as a limiting surface that abuts the ejection pin.

[0047] The rest of this embodiment is the same as any one of Embodiments 1-4, so it will not be described again.

[0048] The above are only preferred embodiments of the present invention and do not 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 scope of protection of the present invention.

Claims

1. A pop-up slider structure, comprising a wear-resistant bushing (1) mounted inside a body, characterized in that: The wear-resistant bushing (1) is provided with a slider (2) for sliding inside, and a limiting member (3) is fixedly installed at one end inside the wear-resistant bushing (1); one end of the slider (2) extends to the outside of the wear-resistant bushing (1), and the end of the slider (2) located inside the wear-resistant bushing (1) abuts against the limiting member (3); at least one group of elastic members (4) is provided between the slider (2) and the limiting member (3), one end of the elastic member (4) is fixedly connected to the limiting member (3), and the other end of the elastic member (4) abuts against the end of the slider (2) located inside the wear-resistant bushing (1).

2. The structure of a pop-up slider according to claim 1, characterized in that: The limiting member (3) comprises a limiting column (31) and a limiting screw plug (32). The limiting screw plug (32) is fixedly mounted on one end inside the wear-resistant bushing (1). The limiting column (31) is fixedly mounted on one end of the limiting screw plug (32) close to the slider (2). One end of the limiting column (31) abuts against the slider (2). An elastic member (4) is sleeved on the outside of the limiting column (31).

3. The structure of a pop-up slider according to claim 2, characterized in that: A fixing hole (33) is provided at one end of the limiting column (31) close to the limiting screw plug (32), and one end of the elastic member (4) is fixedly inserted into the fixing hole (33).

4. The structure of a pop-up slider according to claim 3, characterized in that: A vent hole (34) is provided inside the limiting screw plug (32), one end of the vent hole (34) is communicated with the fixing hole (33), and the other end of the vent hole (34) is communicated with the external environment.

5. The structure of a pop-up slider according to claim 4, characterized in that: The slider (2) extends from the first end of the wear-resistant bushing (1), and the second end of the wear-resistant bushing (1) is provided with a mounting step hole. One end of the limiting screw plug (32) passes through the limiting step hole and extends to the outside of the wear-resistant bushing (1), and a nut (35) is threadedly sleeved on the outer side of the end of the limiting screw plug (32) extending to the outside of the wear-resistant bushing (1).

6. The structure of a pop-up slider according to claim 5, characterized in that: A notch (36) is provided on the end surface of the limiting column (31) at one end close to the slider (2).

7. The structure of a pop-up slider according to claim 6, characterized in that: A washer (37) is provided between the nut (35) and the end surface of the second end of the wear-resistant bushing (1).

8. The pop-up slider structure according to any one of claims 1 to 7, characterized in that: There is a clearance fit between the slider (2) and the wear-resistant bushing (1).

9. The structure of a pop-up slider according to claim 8, characterized in that: A limiting portion is provided on one end of the slider (2) extending to the outside of the wear-resistant bushing (1).

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