Plugging-assisting and pulling-assisting mechanism for case with large plugging and pulling force

Abstract

The utility model relates to aviation chassis equipment, and discloses a large-plugging-force chassis plugging-assisting and pulling-assisting mechanism, which comprises a clamping plate, a screw rod and a threaded seat, the clamping plate is provided with a clamping groove, and the clamping groove is clamped at the lower edge of a chassis; the threaded seat is fixedly mounted on a bearing body of the case, and the case is inserted into the bearing body; the threaded rod sequentially penetrates through the clamping plate and the threaded seat, the threaded rod and the clamping plate are rotationally installed, the threaded seat and the threaded rod are connected through threads, and the distance between the threaded seat and the clamping plate is adjusted through rotation of the threaded rod. According to the utility model, the aviation chassis is mounted on a bearing body (such as a mounting rack) of the chassis and is clamped and matched with the lower edge of the chassis, and the rapid plugging of the aviation chassis with large plugging force can be realized by only one person by virtue of the lower edge of the front panel of the chassis under the condition that the chassis is not changed at all.

Description

Technical Field

[0001] This utility model relates to aviation chassis equipment, specifically a chassis insertion and extraction assistance mechanism with high insertion and extraction force. Background Technology

[0002] In aviation equipment applications, high-force electrical connectors are often installed at the rear of aircraft chassis to ensure signal transmission stability and connection reliability. However, due to the limited insertion and extraction force characteristics of these connectors, it is significantly difficult to perform insertion and extraction operations on aircraft chassis manually. Therefore, in actual use, it is usually necessary to use an auxiliary insertion and extraction mechanism to reduce the difficulty of operation and assist in completing the insertion and extraction work.

[0003] Currently, traditional insertion and extraction assistance methods for high-force power connectors have inherent limitations in structural design: these traditional insertion and extraction assistance mechanisms require some of their components to be directly installed on the aircraft chassis body. This necessitates that the design of the insertion and extraction assistance mechanism must be carried out simultaneously with the initial structural design of the aircraft chassis. In other words, the installation positions, adapter interfaces, and corresponding structural support parts of the mechanism components must be reserved in advance during the aircraft chassis design stage to ensure that the mechanism can form a stable assembly with the chassis body.

[0004] The limitations of the aforementioned traditional solutions have led to numerous problems in practical applications: On the one hand, if the aircraft chassis does not consider the need for assisted insertion and removal during the initial design phase (i.e., the chassis does not have the installation structure required for a traditional assisted insertion and removal mechanism), then after the chassis is put into use, due to the structural safety specifications of aviation equipment and the structural characteristics of the chassis itself, it is usually not allowed to make additional structural modifications to the chassis body or add other auxiliary components. As a result, when such chassis without a pre-set assisted insertion and removal mechanism are used with high-force electrical connectors, they still face the problem of difficulty in manual insertion and removal, and cannot meet the actual operational requirements.

[0005] Against this backdrop, there is an urgent need for an insertion and removal assistance mechanism that does not rely on the initial design of the chassis, does not require any structural changes to the chassis body, and can be operated quickly by a single person, in order to solve the aforementioned problems existing in the prior art. Utility Model Content

[0006] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a high insertion and extraction force chassis insertion and extraction assistance mechanism, which is installed on the chassis carrier (such as a mounting bracket) and engages with the lower edge of the chassis. With the help of the lower edge of the chassis front panel, the high insertion and extraction force aviation chassis can be quickly inserted and extracted by only one person without making any changes to the chassis.

[0007] Specifically, a large insertion and extraction force chassis insertion and extraction assistance mechanism includes a clamping plate, a screw, and a threaded seat. The clamping plate has a slot that engages with the lower edge of the chassis.

[0008] The threaded seat is fixedly installed on the carrier of the chassis, and the chassis is inserted into the carrier;

[0009] The screw passes through the clamping plate and the threaded seat in sequence. The screw is rotatably mounted to the clamping plate, and the threaded seat is threadedly connected to the screw. The distance between the threaded seat and the clamping plate is adjusted by rotating the screw.

[0010] Furthermore, a guide post is provided on the card plate that penetrates the threaded seat.

[0011] Furthermore, an anti-wear plate is installed in the slot.

[0012] Furthermore, the wear plate has a groove that matches the lower edge of the chassis, and the wear plate is fixedly connected to the groove by fasteners (countersunk screws);

[0013] The wear-resistant plate has a non-slip protrusion, and a non-slip groove matching the non-slip protrusion is formed in the slot.

[0014] Furthermore, a retaining ring is provided at the end of the screw near the threaded seat.

[0015] Furthermore, the screw includes a threaded portion and a mounting portion, with a shoulder between the threaded portion and the mounting portion;

[0016] The threaded portion is threadedly matched with the threaded seat.

[0017] The mounting part is mounted on the clamping plate via a bearing. One end of the bearing is attached to the shaft shoulder, and the other end is attached to the cover plate fixed on the clamping plate. The cover plate is fixedly connected to the clamping plate by fasteners (countersunk screws).

[0018] Furthermore, the guide post is connected to the clamping plate via a threaded connection and a nut engagement.

[0019] This utility model has the following advantages:

[0020] The high insertion and extraction force chassis insertion and extraction assistance mechanism of this utility model is installed on the carrier of the chassis (such as a mounting bracket) and engages with the lower edge of the chassis. With the help of the lower edge of the chassis front panel, one person can quickly insert and extract the high insertion and extraction force aviation chassis without making any changes to the chassis.

[0021] By matching the screw and the threaded seat, the position of the screw on the screw seat changes when the screw is rotated, thereby changing the distance between the clamping plate and the threaded seat. The clamping plate is engaged with the lower edge of the chassis, and the threaded seat is fixedly connected to the carrier, thus realizing the insertion and removal of the chassis.

[0022] The function of the guide post is to ensure that the mechanism is not affected by eccentric force during insertion and removal.

[0023] After the high-force insertion and extraction mechanism is installed on the carrier of the chassis, the high-force insertion and extraction mechanism allows for the rapid insertion and extraction of the aviation chassis by a single person using the lower edge of the front panel of the chassis without any changes to the chassis. In use, the screw and the threaded seat are matched. When the screw is rotated, the position of the screw in the screw seat changes, thereby changing the distance between the clamping plate and the threaded seat. The clamping plate is engaged with the lower edge of the chassis, and the threaded seat is fixedly connected to the carrier, thus realizing the insertion and extraction of the chassis. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the present invention installed on the box and the support (mounting frame);

[0025] Figure 2 This is a schematic diagram showing the separated state of the enclosure and the support (mounting frame);

[0026] Figure 3 This is a three-dimensional structural diagram of the large insertion and extraction force chassis insertion and extraction assistance mechanism described in this utility model;

[0027] Figure 4 This is a three-dimensional structural schematic diagram of the large insertion and extraction force chassis insertion and extraction assistance mechanism described in this utility model from another perspective;

[0028] Figure 5 This is a side view of the large insertion and extraction force chassis insertion and extraction assistance mechanism of this utility model;

[0029] Figure 6 yes Figure 5 Sectional view of AA;

[0030] Figure 7 This is a schematic diagram of the disassembled state of the card plate described in this utility model;

[0031] Figure 8 This is a cross-sectional schematic diagram of the screw described in this utility model;

[0032] Figure 9 This is a three-dimensional structural diagram of the card plate described in this utility model;

[0033] Figure 10 This is a three-dimensional structural diagram of the wear-resistant plate described in this utility model;

[0034] In the diagram: 100, chassis; 101, lower edge; 200, carrier; 300, large insertion / extraction force chassis insertion / extraction assistance mechanism; 301, clamping plate; 3011, clamping slot; 3012, anti-slip groove; 302, threaded seat; 303, screw; 3031, mounting part; 3032, shoulder; 3033, threaded part; 304, guide post; 305, cover plate; 306, bearing; 307, retaining ring; 308, wear-resistant plate; 3081, anti-slip protrusion; 309, nut. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0036] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0037] As described in the background section, the traditional insertion and extraction assistance methods for large insertion and extraction force electrical connectors currently have inherent limitations in structural design: such traditional insertion and extraction assistance mechanisms require some of their components to be directly installed on the aircraft chassis body. This requires that the design of the insertion and extraction assistance mechanism must be carried out simultaneously with the initial structural design of the aircraft chassis. That is, the installation positions, adapter interfaces and corresponding structural support parts of the mechanism components must be reserved in advance during the aircraft chassis design stage to ensure that the mechanism can form a stable assembly with the chassis body.

[0038] The limitations of the aforementioned traditional solutions have led to numerous problems in practical applications: On the one hand, if the aircraft chassis did not consider the need for assisted insertion and removal during the initial design phase (i.e., the chassis did not have the installation structure required for a traditional assisted insertion and removal mechanism), then after the chassis is put into use, due to the structural safety specifications of aviation equipment and the structural characteristics of the chassis itself, it is usually not allowed to make additional structural modifications to the chassis body or add other auxiliary components. As a result, when such chassis without a pre-set assisted insertion and removal mechanism are used with high-force electrical connectors, they still face the problem of difficulty in manual insertion and removal, and cannot meet the actual operational requirements; on the other hand, even chassis that are adapted to a traditional assisted insertion and removal mechanism in the initial design often require multiple people to cooperate in the insertion and removal operation, resulting in low operational efficiency and making it difficult to adapt to the use scenario of rapid insertion and removal.

[0039] For the reasons mentioned above, such as Figures 1-7 As shown, this embodiment provides a large insertion and extraction force chassis insertion and extraction assistance mechanism 300, including a clamping plate 301, a screw 303 and a threaded seat 302. The clamping plate 301 has a clamping groove 3011, which engages with the lower edge 101 of the chassis 100.

[0040] The threaded seat 302 is fixedly installed on the carrier 200 of the chassis, and the chassis is connected to the carrier 200 via an electrical connector;

[0041] The screw 303 passes through the clamping plate 301 and the threaded seat 302 in sequence. The screw 303 is rotatably mounted to the clamping plate, and the threaded seat is threadedly connected to the screw. The distance between the threaded seat and the clamping plate is adjusted by rotating the screw.

[0042] The aforementioned technical features utilize the lower edge of the front panel of the chassis, allowing only one person to quickly insert and remove aircraft chassis with high insertion and removal force without any changes to the chassis. In use, the screw and threaded seat are matched. When the screw is rotated, the position of the screw on the screw seat changes, thereby changing the distance between the clamping plate and the threaded seat. The clamping plate is engaged with the lower edge of the chassis, and the threaded seat is fixedly connected to the carrier, thus realizing the insertion and removal of the chassis.

[0043] To reduce the shear force on the screw caused by changes in the relative position of the housing and the support, in one embodiment, a guide post 304 penetrating the threaded seat 302 is provided on the clamping plate 301. There are two guide posts, with the screw located between the two guide posts. The guide posts are connected to the clamping plate via a threaded connection and a nut engagement. For example,... Figure 6 As shown, the guide post is a circular cylinder. One end of the guide post is a threaded connection part with external threads. The threaded connection part is threadedly connected to the threaded hole on the card plate 301. After the threaded connection, the threaded connection part is locked by a washer and a nut 309. The guide post and the threaded seat are in clearance fit.

[0044] The aforementioned technical features enable guidance for the movement of the pallet and resolve the issue of shear force on the screw when there is relative displacement between the housing and the carrier (mainly displacement that induces shear force on the screw). This improves the stable operation of the screw, as the screw becomes difficult to rotate and prone to deformation when subjected to shear force, causing problems such as difficulty and effort for the user. The guide post ensures that the mechanism is not affected by eccentric forces during insertion and removal.

[0045] To reduce friction damage to the card slot, in one embodiment, such as Figure 7 As shown, an anti-wear plate 308 is installed in the slot 3011. The anti-wear plate has a groove that matches the lower edge of the chassis. The anti-wear plate is fixedly connected to the slot by fasteners (such as countersunk screws).

[0046] like Figure 9 and Figure 10As shown, the back side of the wear-resistant plate 308 is provided with two anti-shift protrusions 3081, and two anti-shift grooves 3012 matching the anti-shift protrusions 3081 are formed in the slot 3011. During installation, the two anti-shift protrusions are inserted into the anti-shift grooves 3012, and the wear-resistant plate is fixedly connected to the slot plate by screws. For example, the anti-shift protrusion is a rectangular protrusion with a rounded corner at one end. The shape of the anti-shift groove is the same as the shape of the anti-shift protrusion.

[0047] The above-mentioned technical features can reduce the damage to the card slot when the card plate rubs against the lower edge of the box. Because the shape or size of the card slot is easily deformed after friction, the locking effect is reduced. After the anti-wear plate is used, the anti-wear plate can be made of wear-resistant material and is easy to replace, avoiding direct replacement or loss of the card plate. Through the cooperation of the anti-slip protrusion and the anti-slip groove, the anti-wear plate can be prevented from shifting, so that it can be installed accurately.

[0048] To prevent the screw from dislodging from the threaded seat, in one embodiment, a retaining ring 307 is provided at the end of the screw 303 near the threaded seat. This retaining ring can prevent the screw from dislodging from the threaded seat due to excessive displacement. At the same time, the retaining ring is connected by screws, making it easy to install and remove.

[0049] To achieve the rotational mounting and synchronous axial movement of the screw 303 and the clamping plate 301, in one embodiment, such as Figure 8 As shown, the screw includes a threaded portion 3033 and a mounting portion 3031, with a shoulder 3032 between the threaded portion and the mounting portion;

[0050] The threaded portion is threadedly matched with the threaded seat.

[0051] The mounting part is mounted on the clamping plate 301 via a bearing 306. One end of the bearing 306 is attached to the shaft shoulder, and the other end is attached to the cover plate 305 fixed on the clamping plate. The cover plate is fixedly connected to the clamping plate by fasteners (such as countersunk screws).

[0052] By using bearings, shaft shoulders, and a cover plate fixed to the clamping plate, a rotatable connection between the screw and the clamping plate can be achieved, allowing the clamping plate and screw to move axially synchronously.

[0053] This invention features a high-force insertion / removal mechanism installed on the chassis's support body. Compared to traditional chassis, this mechanism allows for rapid insertion and removal of high-force aviation chassis by a single person, utilizing the lower edge of the chassis's front panel without any modifications to the chassis. During use, the screw and threaded seat are matched; as the screw rotates, its position changes, altering the distance between the locking plate and the threaded seat. The locking plate is engaged with the lower edge of the chassis, and the threaded seat is fixedly connected to the support body, thus enabling the insertion and removal of the chassis.

[0054] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high insertion / extraction force chassis insertion / extraction assistance mechanism, characterized in that: It includes a card plate, a screw, and a threaded seat, wherein the card plate has a slot that engages with the lower edge of the chassis; The threaded seat is fixedly installed on the carrier of the chassis, and the chassis is inserted into the carrier; The screw passes through the clamping plate and the threaded seat in sequence. The screw is rotatably mounted to the clamping plate, and the threaded seat is threadedly connected to the screw. The distance between the threaded seat and the clamping plate is adjusted by rotating the screw.

2. The large insertion / extraction force chassis insertion / extraction assistance mechanism according to claim 1, characterized in that: A guide post is provided on the card plate, which passes through the threaded seat.

3. The large insertion / extraction force chassis insertion / extraction assistance mechanism according to claim 1, characterized in that: An anti-wear plate is installed in the slot.

4. The large insertion / extraction force chassis insertion / extraction assistance mechanism according to claim 3, characterized in that: The wear plate has a groove that matches the lower edge of the chassis, and the wear plate is fixedly connected to the groove by fasteners.

5. The large insertion / extraction force chassis insertion / extraction assistance mechanism according to claim 1, characterized in that: A retaining ring is provided at the end of the screw near the threaded seat.

6. The large insertion / extraction force chassis insertion / extraction assistance mechanism according to claim 1, characterized in that: The screw includes a threaded portion and a mounting portion, with a shoulder between the threaded portion and the mounting portion; The threaded portion is threadedly matched with the threaded seat. The mounting part is mounted on the card plate by a bearing, one end of which is attached to the shoulder of the shaft, and the other end is attached to the cover plate fixed on the card plate.

7. The large insertion / extraction force chassis insertion / extraction assistance mechanism according to claim 2, characterized in that: The guide post is connected to the card plate via a threaded connection and a nut engagement.

Images