Auxiliary heat conduction locking strip
By designing an auxiliary heat-conducting locking strip and utilizing the adaptive compensation mechanism of the end slider and elastic components, the problems of complex structure and strict insertion depth requirements of traditional locking strips are solved, thereby achieving the stability and heat conduction efficiency of the locking strip and improving the reliability and safety of the aircraft chassis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional locking bars have complex structures, are cumbersome to install, and have strict requirements on insertion depth. They also have unstable locking and safety hazards, making it difficult to meet the reliability and safety requirements of aircraft chassis.
An auxiliary heat-conducting locking strip was designed. The end slider provides compensation to ensure that the middle slider fits tightly against the inner wall of the chassis. Combined with the heat-conducting function, the elastic component and the inclined surface work together to achieve adaptive compensation and stable locking, adapting to installation errors.
This achieves stable reliability and heat conduction efficiency of the locking strip, improves the installation accuracy of the module box and the environmental adaptability of the equipment, and enhances the overall reliability and safety of the aircraft chassis.
Smart Images

Figure CN224098032U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to aircraft chassis components, specifically an auxiliary heat-conducting locking strip. Background Technology
[0002] During the installation of module boxes in aircraft chassis, locking strips are typically used to secure the modules quickly and reliably, preventing them from slipping when the chassis shakes. Currently, traditional locking strips mostly rely on screws or handles as driving components, moving wedges or movable sliders to lock the module boxes in place. However, this traditional locking method has significant drawbacks: firstly, its driving structure is relatively complex, leading to cumbersome installation and maintenance processes and increasing operational difficulty; secondly, this method has extremely strict requirements on the insertion depth of the module boxes. If the insertion depth is insufficient, or if the locking strip is installed incorrectly, the longitudinally moving slider will not reach the designated position, resulting in unstable locking and potential safety hazards such as module loosening or even detachment. This seriously affects the overall reliability and safety of the aircraft chassis and fails to meet the stringent requirements of the aviation industry for equipment stability and reliability. Utility Model Content
[0003] Therefore, in order to solve the above-mentioned shortcomings, this utility model provides an auxiliary heat-conducting locking strip. The locking strip provides compensation through the end slider to ensure that the middle slider can be tightly attached to the inner wall of the chassis. After ensuring that the middle slider is in contact with the inner wall of the chassis, the locking strip can conduct heat and transfer the heat of the module box to the chassis through the locking strip, thereby dissipating heat through the chassis.
[0004] Specifically, an auxiliary heat-conducting locking strip includes a tail slider, a rear slider, a middle slider, a push rod, and a front slider;
[0005] The push rod is fixedly connected to the module box;
[0006] The intermediate slider is slidably mounted on the push rod in the longitudinal direction. The front slider is fixedly mounted on the push rod and located at one end of the intermediate slider. The rear slider is slidably mounted on the push rod along the length of the push rod and located at the other end of the intermediate slider. When the distance between the rear slider and the front slider changes, the intermediate slider moves longitudinally. When the intermediate slider moves up to the upper stop point, it fits against the inner wall of the chassis.
[0007] A first elastic component is provided between the rear slider and the push rod;
[0008] The end slider is slidably mounted to the end of the rear slider via connecting bolts. A second elastic component is provided between the end slider and the rear slider. The end slider can compensate for the fact that, due to errors in the insertion depth of the module box or the installation position of the locking strip after the traditional module box is inserted into the socket, the middle slider may not move up high enough to allow it to fit tightly against the inner wall of the chassis. This ensures that the middle slider fits tightly against the inner wall of the chassis, thereby ensuring locking and heat conduction.
[0009] Optionally, both the rear slider and the front slider contact the middle slider via an inclined surface, with the inclined surfaces of the rear slider and the front slider contacting the middle slider having opposite inclination directions.
[0010] Optionally, the connecting bolt passes through the end slider and its end is inserted into a connecting block located within the rear slider;
[0011] The second elastic component is fitted onto the connecting bolt.
[0012] Optionally, the rear slider is slidably mounted on the push rod by a rivet. The push rod has a strip-shaped hole arranged in a square along the length of the push rod. The rivet is located in the strip-shaped hole and moves along the length of the strip-shaped hole.
[0013] The intermediate slider has a cavity for mounting a push rod, the height of which is greater than the height of the push rod, and a limiting part at the lower part of the intermediate slider to prevent the intermediate slider from detaching from the push rod.
[0014] This utility model has the following advantages:
[0015] This utility model is an auxiliary heat-conducting locking strip that organically combines heat conduction and locking functions. During locking, the middle slider moves up to the upper stop point and fits tightly against the inner wall of the chassis. This tight fit enables heat conduction, effectively reducing thermal resistance and transferring the heat of the module box to the chassis for heat dissipation through the locking strip. At the same time, the stable contact between the middle slider and the inner wall of the chassis ensures reliable locking of the module box, preventing longitudinal displacement within the chassis and ensuring the stability of equipment operation.
[0016] The locking strip achieves adaptive compensation capability through the end slider and the second elastic component that contact the chassis, allowing for the errors described in the background. After the module box is inserted to the insertion point, if the middle slider does not rise sufficiently and fails to fit against the inner wall of the chassis, the end slider in contact with the inner wall can automatically compensate and adjust using the elasticity of the pressed second elastic component. This ensures that the middle slider always fits against the inner wall of the chassis, effectively solving the problem of poor fit caused by installation errors or component tolerances. This further improves the reliability of locking and heat conduction, and enhances the product's environmental adaptability.
[0017] Meanwhile, the rear and front sliders contact the middle slider through an inclined surface, with the inclined surfaces tilting in opposite directions. This design can accurately convert the linear movement of the rear and front sliders into the longitudinal movement of the middle slider, resulting in high transmission efficiency and stable and reliable motion. Furthermore, the sliding installation of the rear slider in the push rod slot through rivets and the sliding installation of the end slider on the connecting bolts allows for flexible adjustment of the spacing between components to accommodate module boxes and chassis of different sizes, thus improving the product's versatility and adaptability.
[0018] Meanwhile, the intermediate slider has a cavity for mounting the push rod, and the height of the cavity is greater than the height of the push rod. The limiting part set at the lower part of the intermediate slider can not only ensure the smooth sliding of the intermediate slider on the push rod, but also effectively prevent the intermediate slider from detaching from the push rod, ensuring the stability and reliability of the entire structure during use. The first elastic component between the rear slider and the push rod provides the power for the rear slider to reset, ensuring that each component can accurately reset during movement, maintaining the normal working state of the locking strip, and extending the service life of the product. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the auxiliary heat-conducting locking strip described in this utility model;
[0020] Figure 2 This is a three-dimensional structural diagram of the auxiliary heat-conducting locking strip described in this utility model from another perspective;
[0021] Figure 3 This is a front view schematic diagram of the auxiliary heat-conducting locking strip described in this utility model;
[0022] Figure 4 This is a top view of the auxiliary heat-conducting locking strip described in this utility model;
[0023] Figure 5 yes Figure 4 Sectional view of AA;
[0024] Figure 6 This is a schematic diagram of the rising state of the middle slider in this utility model;
[0025] Figure 7 This is a partial schematic diagram of the auxiliary heat-conducting locking strip described in this utility model;
[0026] Figure 8 This is a partial schematic diagram from another perspective of the auxiliary heat-conducting locking strip described in this utility model;
[0027] Figure 9 This is a diagram showing the usage state of the auxiliary heat-conducting locking strip described in this utility model;
[0028] In the diagram: 1. Push rod; 2. Front slider; 3. Middle slider; 4. Rear slider; 5. End slider; 6. Connecting bolt; 7. Second elastic component; 8. Connecting block; 9. First elastic component; 10. Rivet; 11. Strip hole; 13. Locking screw. Detailed Implementation
[0029] 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.
[0030] 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.
[0031] As described in the background section, during the installation of module boxes in aircraft chassis, locking strips are typically used to secure the module boxes to ensure rapid installation and reliable fixation, preventing them from slipping when the chassis shakes. Currently, traditional locking strips mostly rely on screws or handles as driving components, moving wedges or movable sliders to lock the module boxes via a longitudinally moving slider. However, this traditional locking method has significant drawbacks: firstly, its driving structure is relatively complex, leading to cumbersome installation and maintenance processes and increasing operational difficulty; secondly, this method has extremely strict requirements on the insertion depth of the module boxes. If the insertion depth is insufficient or the locking strip installation position is incorrect, the longitudinally moving slider will not reach the designated position, resulting in unstable locking performance and potential safety hazards such as module box loosening or even detachment. This seriously affects the overall reliability and safety of the aircraft chassis and fails to meet the stringent requirements for equipment stability and reliability in the aviation field.
[0032] For the reasons mentioned above, this embodiment provides an auxiliary heat-conducting locking strip, including a tail slider 5, a rear slider 4, a middle slider 3, a push rod 1, and a front slider 2;
[0033] The push rod is fixedly connected to the module box;
[0034] The intermediate slider 3 is longitudinally slidably mounted on the push rod 1. The front slider 2 is fixedly mounted on the push rod and located at one end of the intermediate slider 3. The rear slider 4 is slidably mounted on the push rod 1 along the length of the push rod and located at the other end of the intermediate slider 3. When the distance between the rear slider 4 and the front slider 2 changes, the intermediate slider 3 moves longitudinally. When the intermediate slider 3 moves up to the upper stop point, it fits against the inner wall of the chassis.
[0035] The rear slider 4 and the push rod 1 have a first elastic component 9 (e.g., a spring).
[0036] The end slider 5 is slidably mounted to the end of the rear slider 4 via connecting bolts 6. A second elastic component 7 (e.g., a spring) is provided between the end slider 5 and the rear slider 4. The end slider 5 can compensate for the fact that, due to errors in the insertion depth of the module box or the installation position of the locking strip, the middle slider may not move up high enough to allow it to fit tightly against the inner wall of the chassis after being inserted into the socket. The end slider and the second elastic component can extend the length of the locking strip and provide additional elasticity to achieve compensation, ensuring that the middle slider fits against the inner wall of the chassis, thereby ensuring locking and heat conduction.
[0037] Both the rear slider and the front slider contact the middle slider via inclined surfaces, and the inclined surfaces of the rear slider and the front slider that contact the middle slider have opposite inclination directions.
[0038] The connecting bolt passes through the end slider and its end is inserted into the connecting block 8 located inside the rear slider, which may also be part of the rear slider;
[0039] The second elastic component is fitted onto the connecting bolt.
[0040] The rear slider is slidably mounted on the push rod by a rivet 10. A strip hole 11 is provided on the push rod, which is arranged in a square along the length of the push rod. The rivet is located in the strip hole and moves along the length of the strip hole.
[0041] In order to achieve the change of the longitudinal position of the intermediate slider, the intermediate slider has a cavity for mounting the push rod, the height of which is greater than the height of the push rod, and a limiting part is provided at the lower part of the intermediate slider to prevent the intermediate slider from disengaging from the push rod.
[0042] During use, align the module box with the auxiliary heat-conducting locking strip with the chassis connector and insert it slowly. During insertion, the rear slider encounters resistance, driving the rear slider closer to the front slider. The distance between the rear and front sliders changes. Due to the engagement of both with the inclined surface of the middle slider, this change in distance will cause the middle slider to move longitudinally (upwards, as shown in the image). Figure 9 (As shown in the image) move.
[0043] As the module box is gradually inserted to the insertion point, the middle slider continues to move upward until it reaches the top stop, at which point the middle slider is in contact with the inner wall of the chassis. During this process, the first elastic component between the rear slider and the push rod provides a certain degree of cushioning and assistance, helping the middle slider to better fit against the inner wall of the chassis.
[0044] Because the length of the locking strip is increased by the end slider, during module insertion, the end slider first contacts the limiting step on the inner wall of the chassis. If the module box is continuously pushed into the insertion, the first and second elastic components are compressed, thereby pushing the rear slider closer to the front slider. This ensures that the middle slider can always be in close contact with the inner wall of the chassis. Even if there is an error in the insertion depth between the module box and the socket, as long as the end slider contacts the inner wall of the chassis, the compressed second elastic component can provide a pushing force for the rear slider to move closer to the front slider, thereby achieving compensation and ensuring that the middle slider is in close contact with the inner wall of the chassis. This achieves the limitation of the module box in the longitudinal direction and ensures good heat conduction.
[0045] In one embodiment, to ensure that the module box does not detach from the chassis from the reverse insertion direction, such as Figure 9 As shown, after the module box is installed by the locking strip, it is then fixed by the locking screw 13 on the side. In this state, the locking strip mainly serves to conduct heat and also prevents the module box from shaking in the longitudinal direction.
[0046] 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. An auxiliary heat-conducting locking strip, characterized in that: This includes the end slider, rear slider, middle slider, push rod, and front slider; The push rod is fixedly connected to the module box; The intermediate slider is slidably mounted on the push rod in the longitudinal direction. The front slider is fixedly mounted on the push rod and located at one end of the intermediate slider. The rear slider is slidably mounted on the push rod along the length of the push rod and located at the other end of the intermediate slider. When the distance between the rear slider and the front slider changes, the intermediate slider moves longitudinally. When the intermediate slider moves up to the upper stop point, it fits against the inner wall of the chassis. A first elastic component is provided between the rear slider and the push rod; The end slider is slidably mounted to the end of the rear slider by connecting bolts, and a second elastic component is provided between the end slider and the rear slider.
2. The auxiliary heat-conducting locking strip according to claim 1, characterized in that: Both the rear slider and the front slider contact the middle slider via inclined surfaces, and the inclined surfaces of the rear slider and the front slider that contact the middle slider have opposite inclination directions.
3. The auxiliary heat-conducting locking strip according to claim 1, characterized in that: The connecting bolt passes through the end slider and its end is inserted into the connecting block located inside the rear slider; The second elastic component is fitted onto the connecting bolt.
4. The auxiliary heat-conducting locking strip according to claim 1, characterized in that: The rear slider is slidably mounted on the push rod by a rivet. The push rod has a strip hole arranged in a square along the length of the push rod. The rivet is located in the strip hole and moves along the length of the strip hole.