Separation signal triggering device for satellite ground test
By designing a separation signal triggering device for the triggering component and the stop component, the problems of high cost and limited number of times of traditional separation mechanism simulation components are solved, realizing low-cost, simple and efficient multiple repeated tests for satellite ground testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN HANGSHENG SATELLITE TECH CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional pyrotechnic separation mechanism simulators are for single use, which increases the cost and time of satellite ground testing. Shape memory alloy separation mechanisms have limitations on the number of uses and complex processes, affecting testing efficiency and reliability.
A separation signal triggering device including a trigger component and a stop component was designed. The signal switch is contacted and separated by linear movement, and the stop component provides a limit. The structure is simple and suitable for repeated testing.
It achieves low-cost and simple separate signal triggering, improves test repeatability and accuracy, and reduces test complexity and uncertainty.
Smart Images
Figure CN224248489U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spacecraft technology, and in particular to a separation signal triggering device for satellite ground testing. Background Technology
[0002] In the ground testing phase before satellite launch, in order to ensure the reliability of satellite functions, the satellite needs to be tested multiple times. Among them, important functional tests such as solar array deployment test and satellite simulated flight test all require triggering the satellite separation signal, which is accomplished by relying on the separation mechanism to separate from the satellite.
[0003] Currently, traditional pyrotechnic separation mechanism simulators are commonly used separation devices. They are single-use components and cannot be restored after a separation operation. Each test requires a completely new separation mechanism simulator, which increases the cost and time of satellite ground testing.
[0004] While novel separation mechanism simulators based on shape memory alloys are widely used, separation testing is generally no longer conducted because shape memory alloys undergo irreversible deformation under repeated high-current exposures. If testing is performed, there are strict limits on the number of tests, and each test must use a dedicated power supply provided by the manufacturer. Furthermore, after each test, the separation mechanism simulator needs to be sent back to the manufacturer for reassembly, a cumbersome process. Additionally, after a few tests, further processing is required, which not only severely impacts the efficiency of satellite ground testing but also increases the complexity and uncertainty of the testing process. Utility Model Content
[0005] Therefore, it is necessary to provide a simple, reusable, and easily reconstructed signal triggering device for satellite ground testing to address the aforementioned technical problems.
[0006] A separation signal triggering device for satellite ground testing includes a satellite structure plate and a separation mechanism simulation component. A signal switch is installed on the satellite structure plate, and a triggering component and a stop component are installed on the separation mechanism simulation component.
[0007] The trigger component has a linear travel stroke and has a pre-tensioned state and a natural state during the linear travel stroke; when the trigger component is in the natural state, the trigger component abuts against the signal switch, and the signal switch is closed; when the trigger component changes from the natural state to the pre-tensioned state, the trigger component moves and separates from the signal switch, and the signal switch is opened.
[0008] The stop component is disposed on the travel stroke of the trigger component and also has a pre-tightened state and a natural state. When the trigger component is in the natural state, pressure is applied to the stop component, and the stop component is in the pre-tightened state. When the trigger component changes from the natural state to the pre-tightened state, the pressure is released, the automatic component changes from the pre-tightened state to the natural state, and limits the trigger component to prevent rebound.
[0009] In one embodiment, the triggering component includes a trigger portion disposed on the separation mechanism simulation component, and a first moving rod and a first elastic element disposed within the trigger portion;
[0010] The triggering part and the separation mechanism simulation part are in clearance fit;
[0011] A first mounting hole is provided on the trigger part, the first elastic element is sleeved on the first moving rod and placed together in the first mounting hole, and the front end face of the first moving rod is mechanically connected to the first mounting hole;
[0012] One end of the first elastic element contacts the inner bottom surface of the first mounting hole, and the other end contacts the separation mechanism simulation element;
[0013] The first elastic element and the first mounting hole are clearance fit, and the trigger part is also provided with an abutment block; the first moving rod has a linear movement stroke, and the first elastic element has a pre-tightened state and a natural state during the linear movement stroke;
[0014] When the first elastic element is in its natural state, the abutment block abuts against the signal switch, and the signal switch is closed; when the first elastic element is in its pre-tightened state, the abutment block moves and separates from the signal switch, and the signal switch is opened.
[0015] In one embodiment, a first limiting member is provided at the rear end of the first moving rod.
[0016] In one embodiment, a pull rope is provided on the first moving rod.
[0017] In one embodiment, the first moving rod and the first limiting member are integrally formed.
[0018] In one embodiment, the stop assembly includes a stop mounting base, and a second moving rod and a second elastic member disposed within the stop mounting base;
[0019] The stop mounting base is mechanically connected to the separation mechanism simulation component and is located on the side of the movement direction of the trigger component from the natural state to the pre-tightened state;
[0020] The stop mounting base has a second mounting hole, the second elastic element is sleeved on the second moving rod and placed together in the second mounting hole, and the second moving rod and the stop mounting base are clearance fit;
[0021] When the first elastic element is in its natural state, the rear end face of the second moving rod abuts against the side surface of the first limiting element, and applies pressure to the second elastic element through the first limiting element;
[0022] When the first elastic element is in a pre-tightened state, the rear end face of the second moving rod abuts against the side surface of the first moving rod, and the first elastic element is prevented from rebounding through the cooperation between the first limiting part and the rear end face of the second moving rod.
[0023] In one embodiment, a second limiting member is provided on the rear end face of the second moving rod, and the shape of the upper surface of the second limiting member is adapted to the shape of the side surface of the first limiting part.
[0024] In one embodiment, the second moving rod and the second limiting member are integrally formed.
[0025] In one embodiment, a pull rope is provided on the second moving rod.
[0026] In one embodiment, a baffle is also provided on the separation mechanism simulator;
[0027] The baffle is located on the side opposite to the stop component, and the baffle limits the range of motion of the trigger component.
[0028] Compared with existing technologies, the separation signal triggering device for satellite ground testing provided by this utility model has the following advantages:
[0029] 1. Without complex mechanical transmission or electronic control devices, the triggering component achieves contact and separation with the signal switch through linear movement, and the stop component limits the movement of the triggering component. The structure is simple and clear, the cost is low, and it is easy to manufacture, install and maintain.
[0030] 2. By using a trigger component with both a natural state and a pre-tightened state in conjunction with a stop component, multiple repeated tests can be achieved; and the limit of the stop component ensures the consistency of the position and state of the trigger component in each test, improving the repeatability and accuracy of the test, and enabling repeated use in different test scenarios. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0032] Figure 1 An exploded view of a separation signal triggering device used for satellite ground testing in one embodiment;
[0033] Figure 2 for Figure 1 Enlarged diagram of section A in the center;
[0034] Figure 3 This is a schematic diagram of the structure of a simulated separation mechanism in one embodiment;
[0035] Figure 4 for Figure 3 Enlarged diagram of section B in the center;
[0036] Figure 5 Here is an exploded view of the triggering component in one embodiment;
[0037] Figure 6 Here is a cross-sectional view of the triggering component in one embodiment;
[0038] Figure 7 Here is an exploded view of the stop component in one embodiment;
[0039] Figure 8 This is a cross-sectional view of the stop assembly in one embodiment;
[0040] Figure 9 This is a schematic diagram showing the height of the signal switch in various states in one embodiment, wherein, Figure 9 (a) is a schematic diagram of the height under the compressed state. Figure 9 (b) is a schematic diagram of the critical state height. Figure 9 (c) is a schematic diagram of the height in the fully deployed state;
[0041] Figure 10 This is a schematic diagram of a combination where the triggering component is in its natural state in one embodiment;
[0042] Figure 11 This is a schematic diagram of a combination where the triggering component is in a pre-tightened state in one embodiment;
[0043] Explanation of reference numerals in the attached figures:
[0044] Satellite structure plate 1, signal switch 11, spring 111, pressing surface 112, separation mechanism simulation component 2, plane 21, receiving groove 211, baffle mounting position 212, pad 22, trigger assembly 3, trigger part 31, abutment block 311, first moving rod 32, first elastic element 33, first limiting element 34, stop assembly 4, stop mounting seat 41, second moving rod 42, second elastic element 43, second limiting element 44, screw 45, pull rope 5, baffle 6.
[0045] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0047] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.
[0048] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0050] Furthermore, the detachable connection described in this utility model includes, but is not limited to, snap-fit connections, threaded connections, pin connections, magnetic connections, plug-in connections, etc., which can be selected flexibly according to the situation. The specific detachable connection methods shown in the following embodiments are one of the feasible methods and are not intended to be the only limitation.
[0051] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0052] like Figures 1 to 11 As shown, this embodiment provides a separation signal triggering device for satellite ground testing, which includes a satellite structure plate 1 and a separation mechanism simulation component 2. A signal switch 11 is installed on the satellite structure plate 1; a triggering component 3 and a stop component 4 are installed on the separation mechanism simulation component 2.
[0053] The trigger component 3 has a travel distance along a straight line, and has a pre-tensioned state and a natural state during the linear travel distance; when the trigger component 3 is in the natural state, the trigger component 3 abuts against the signal switch 11, and the signal switch 11 is closed; when the trigger component 3 changes from the natural state to the pre-tensioned state, the trigger component 3 moves and separates from the signal switch 11, and the signal switch 11 is opened.
[0054] The stop component 4 is set on the movement stroke of the trigger component 3, and also has a pre-tightened state and a natural state. When the trigger component 3 is in the natural state, pressure is applied to the stop component 4, and the stop component 4 is in the pre-tightened state. When the trigger component 3 changes from the natural state to the pre-tightened state, the pressure is released, the automatic component changes from the pre-tightened state to the natural state, and limits the trigger component 3 to prevent rebound.
[0055] Specifically, the satellite structure plate 1 is provided with a mounting groove, the signal switch 11 is fixed in the mounting groove, and the spring on the signal switch 11 faces the separation mechanism simulation component 2.
[0056] The separation mechanism simulation component 2 has a rectangular structure with four sides forming a plane 21 of a certain width. A receiving groove 211 is provided on the plane 21 to house the trigger assembly 3. The length of the receiving groove 211 needs to be determined based on the movement stroke of the trigger part 31. It is advisable to ensure that the movement distance of the trigger part 31 is sufficient so that the abutment block 311 can smoothly control the opening of the signal switch 11. In this embodiment, to ensure that the trigger part 31 has sufficient movement distance, the rear end of the receiving groove 211 extends through the inner side of the plane 21, and a baffle 6 is installed on the inner side. The baffle 6 restricts the movement stroke of the trigger part 31 in the trigger assembly 3, preventing excessive movement. A baffle mounting position 212 is provided at the corresponding position of the rear end of the receiving groove 211 on the plane 21. The baffle 6 is detachably fixed to the separation mechanism simulation component 2, and the stop portion of the baffle 6 is located at the rear end of the receiving groove 211, blocking the rear end of the receiving groove 211 to limit the movement distance of the trigger part 31.
[0057] In addition, a through hole is provided at the front end of the receiving groove 211 on the plane 21, and the first moving rod 32 passes through the through hole and is mechanically connected to the trigger part 31.
[0058] It is worth noting that detachable connections include, but are not limited to, snap-fit connections, threaded connections, pin connections, magnetic connections, and plug-in connections, etc., which can be selected adaptively according to the situation. In this embodiment, a threaded connection is preferred. In addition, the detachable connection methods mentioned later in this embodiment have the same meaning and will not be described again.
[0059] The four corners of the separation mechanism simulation component 2 are provided with pads 22. When the satellite structure plate 1 is placed on the separation mechanism simulation component 2, it is supported by the pads 22.
[0060] The trigger assembly 3 includes a trigger part 31 placed in the receiving groove 211, and a first moving rod 32 and a first elastic member 33 disposed in the trigger part 31.
[0061] The trigger part 31 and the separation mechanism simulation part 2 are in clearance fit, so that the first moving rod 32 and the first elastic member 33 are in cooperation, and can move along the length of the groove in the receiving groove 211.
[0062] Specifically, the trigger part 31 is a long column with a first mounting hole. The first elastic element 33 is sleeved on the first moving rod 32 and placed together in the first mounting hole. The front end face of the first moving rod 32 is mechanically connected in the first mounting hole.
[0063] Mechanical connections can be detachable or fixed. Detachable connections include, but are not limited to, snap-fit connections, threaded connections, pin connections, magnetic connections, and plug-in connections. Fixed connections include, but are not limited to, interference fit connections and welded connections. The appropriate method can be selected based on the specific circumstances. Furthermore, the mechanical connections mentioned later in this embodiment have the same meaning and will not be elaborated upon further.
[0064] In this embodiment, the first moving rod 32 is preferably threadedly connected to the first mounting hole. Specifically, a threaded rod is designed at the front end of the first moving rod 32, and a corresponding threaded hole is provided on the inner bottom surface of the first mounting hole. The front end of the first moving rod 32 is mechanically connected to the first mounting hole through the cooperation of the threaded rod and the threaded hole. It is worth noting that the diameter of the threaded hole is smaller than the diameter of the first mounting hole, thus forming a step at the interface between the threaded hole and the first mounting hole. This step limits the movement of the first elastic element 33; the thickness of the threaded rod at the front end of the first moving rod 32 is adapted to the inner diameter of the threaded hole.
[0065] Additionally, a protruding abutment block 311 is provided on the trigger part 31, facing the signal switch 11. It can be seen that the abutment block 311 has a slope facing the signal switch 11, extending the path of force through this slope, thus easily pressing the signal switch. In terms of manufacturing, the trigger part 31 and the abutment block 311 are integrally formed, resulting in better overall integrity.
[0066] A first limiting member 34 is provided at the rear end of the first moving rod 32. The first limiting member 34 is a protrusion with a cross-section larger than that of the first moving rod 32, and its shape is the same as that of the first moving rod 32. That is, when the cross-section of the first moving rod 32 is circular, the cross-section of the first limiting member 34 is also circular; when the cross-section of the first moving rod 32 is polygonal, the cross-section of the first limiting member 34 is also polygonal. In addition, the first moving rod 32 and the first limiting member 34 are integrally formed to form a better overall integrity. A pull rope 5 is provided on the first moving rod 32 near the first limiting part 34. By applying tension to the pull rope 5, the first moving rod 32 is driven to move outward, thereby causing the first elastic member 33 to change from a natural state to a pre-tensioned state.
[0067] During assembly, the first elastic element 33 is placed in the first mounting hole, and then the assembled components are placed in the receiving groove 211. The first moving rod 32 passes through the front through hole of the receiving groove 211 and through the first elastic element 33. Then, the front end of the first moving rod 32 is mechanically connected to the first mounting hole 311. After assembly, one end of the first elastic element 33 contacts the inner bottom surface of the first mounting hole, and the other end contacts the separation mechanism simulation component 2. The first elastic element 33 and the first mounting hole are in clearance fit, and the first moving rod 32 and the first elastic element 33 are in clearance fit.
[0068] With this connection method, when the first moving rod 32 moves linearly along the length of the receiving groove 211, it will drive the trigger part 31 to move, and then drive the abutment block 311 to move; and when the first moving rod 32 moves, the first elastic member 33 can have a pre-tightened state and a natural state.
[0069] Specifically, in the initial assembly state, the first elastic element 33 is in its natural state, and the abutment block 311 is located directly below the signal switch 11, applying an upward force to the spring of the signal switch 11, causing the spring to fit tightly against the pressing surface. The signal switch 11 is in the closed state, and the inner side of the first limiting part 34 contacts the outer side of the separation mechanism simulation part 2. A pulling force is applied to the first moving rod 32 by the pull rope 5, causing the first moving rod 32 to move outward, which in turn moves the trigger part 31 of the mechanical connection outward, thereby causing the abutment block 311 to move outward. The first elastic element 33 changes from its natural state to a pre-tightened state, and the spring of the signal switch 11 changes from a pressed state to a critical state. When the abutment block 311 is completely removed, the spring of the signal switch 11 is in a fully open state, and the signal switch 11 is turned on.
[0070] Furthermore, a stop assembly 4 is provided on the side opposite to the baffle 6, that is, on the outside of the separation mechanism simulation component 2. The stop assembly 4 restricts the rebound of the first elastic component 33.
[0071] The stop assembly 4 includes a stop mounting base 41, and a second moving rod 42 and a second elastic member 43 disposed within the stop mounting base 41. The stop mounting base 41 is mechanically connected to the separation mechanism simulation component 2 and is located on the side of the movement direction of the trigger assembly 3 from the natural state to the pre-tightened state. Preferably, the stop mounting base 41 is fixed to the outer surface of the separation mechanism simulation component 2 by a threaded connection.
[0072] The stop mounting base 41 has a second mounting hole, which, as shown in the figure, is a through hole, sized to allow the second moving rod 42 to pass through. The second elastic element 43 is fitted onto the second moving rod 42 and together they are placed within the second mounting hole. The stop mounting base 41, the second elastic element 43, and the second moving rod 42 are all clearance-fitted. The length of the second moving rod 42 is equal to or greater than the length of the second elastic element 43 in its natural state, and is greater than the depth of the second mounting hole.
[0073] When the first elastic member 33 is in its natural state, the rear end face of the second moving rod 42 abuts against the side surface of the first limiting member 34, and pressure is applied to the second elastic member 43 through the first limiting member 34. When the first elastic member 33 is in a pre-tightened state, the rear end face of the second moving rod 42 abuts against the side surface of the first moving rod 32, and the first elastic member 33 is prevented from rebounding through the cooperation between the first limiting part and the rear end face of the second moving rod 42.
[0074] To ensure that the second moving rod 42 does not slip out when the stop mounting base 41 and the second moving rod 42 are in clearance fit, a threaded hole is coaxially provided at the front end of the second moving rod 42. After the front end of the second moving rod 42 passes through one side of the second mounting hole, a screw 45 with a nut is screwed into the threaded hole on the other side of the second mounting hole. In addition, the length of the second moving rod 42 is equal to or greater than the length of the second elastic member 43 in its natural state, and greater than the depth of the second mounting hole, thereby ensuring that the second moving rod 42 has sufficient movement stroke while preventing it from slipping out of the second mounting hole.
[0075] Furthermore, a second limiting member 44 is provided on the rear end face of the second moving rod 42. The upper surface shape of the second limiting member 44 is adapted to the side surface shape of the first limiting part 44 to form a more stable contact. In terms of manufacturing process, the second moving rod 42 and the second limiting member 44 are integrally formed, resulting in better overall integrity.
[0076] Additionally, a pull rope 5 is provided on the second moving rod 42 near the screw 45. By applying tension to the pull rope 5, the second moving rod 42 is driven downward, thereby causing the second elastic element 43 to change from its natural state to a pre-tightened state. Furthermore, the pull rope 5 can be tied to the screw 45.
[0077] During assembly, the second elastic element 43 is fitted onto the second moving rod 42 and then placed in the second mounting hole of the stop mounting base 41. On the other side of the second mounting hole, the second moving rod 42 is fixed and limited by screws 45, and the pull rope 5 is tied on. The stop assembly 4 is then assembled. The assembled stop assembly 4 is then fixed to the outer side of the separation mechanism simulation part 2 by mechanical connection, corresponding to the position of the trigger assembly 3.
[0078] Furthermore, in the initial state of the entire structure assembly, the pull rope 5 applies a downward pulling force to the second moving rod 42, causing the second limiting member 44 to abut against the side surface of the first limiting member 34. The first limiting member 34 applies downward pressure to the second elastic member 43, and the second elastic member 43 is in a pre-tightened state. When the first moving rod 32 and the first limiting member 34 move outward under the action of the pull rope 5, the second elastic member 43 changes from the pre-tightened state to the natural state, the pressure is released, the second limiting member 44 moves upward and abuts against the side surface of the first moving rod 32. The first limiting member 34 is locked by the second limiting member 44 and no longer rebounds.
[0079] It is worth noting that, assuming the height between the spring of signal switch 11 and the pressing surface is h0 in the pressed state, h1 in the critical state, and h2 in the fully open state, when the first elastic element 33 is in its natural state, the distance H1 between the pressing surface 112 of signal switch 11 and the upper surface of the abutment block 311 is: h0 ≤ H1 < h1. However, for safety reasons, sufficient margin needs to be left, so H3 should be as close to H0 as possible. When the first elastic element 33 is in the pre-tightened state, the distance H2 between the pressing surface 112 of signal switch 11 and the upper surface of the trigger part 31 is: h2 ≤ H2.
[0080] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0081] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A separation signal triggering device for satellite ground testing, comprising a satellite structural plate and a separation mechanism simulation component, characterized in that, A signal switch is installed on the satellite structure plate; a trigger assembly and a stop assembly are installed on the separation mechanism simulation component; The trigger component has a linear travel stroke and has a pre-tensioned state and a natural state during the linear travel stroke; when the trigger component is in the natural state, the trigger component abuts against the signal switch, and the signal switch is closed; when the trigger component changes from the natural state to the pre-tensioned state, the trigger component moves and separates from the signal switch, and the signal switch is opened. The stop component is disposed on the travel stroke of the trigger component and also has a pre-tightened state and a natural state. When the trigger component is in the natural state, pressure is applied to the stop component, and the stop component is in the pre-tightened state. When the trigger component changes from the natural state to the pre-tightened state, the pressure is released, the automatic component changes from the pre-tightened state to the natural state, and limits the trigger component to prevent rebound.
2. The separation signal triggering device for satellite ground testing according to claim 1, characterized in that, The triggering component includes a triggering part disposed on the separation mechanism simulation component, and a first moving rod and a first elastic element disposed within the triggering part; The triggering part and the separation mechanism simulation part are in clearance fit; A first mounting hole is provided on the trigger part, the first elastic element is sleeved on the first moving rod and placed together in the first mounting hole, and the front end face of the first moving rod is mechanically connected to the first mounting hole; One end of the first elastic element contacts the inner bottom surface of the first mounting hole, and the other end contacts the separation mechanism simulation element; The first elastic element and the first mounting hole are clearance fit, and the trigger part is also provided with an abutment block; the first moving rod has a linear movement stroke, and the first elastic element has a pre-tightened state and a natural state during the linear movement stroke; When the first elastic element is in its natural state, the abutment block abuts against the signal switch, and the signal switch is closed; when the first elastic element is in its pre-tightened state, the abutment block moves and separates from the signal switch, and the signal switch is opened.
3. The separation signal triggering device for satellite ground testing according to claim 2, characterized in that, A first limiting member is provided at the rear end of the first moving rod.
4. The separation signal triggering device for satellite ground testing according to claim 3, characterized in that, A pull rope is provided on the first moving rod.
5. The separation signal triggering device for satellite ground testing according to claim 3, characterized in that, The first moving rod and the first limiting member are integrally formed.
6. The separation signal triggering device for satellite ground testing according to any one of claims 3 to 5, characterized in that, The stop assembly includes a stop mounting base, and a second moving rod and a second elastic element disposed within the stop mounting base; The stop mounting base is mechanically connected to the separation mechanism simulation component and is located on the side of the movement direction of the trigger component from the natural state to the pre-tightened state; The stop mounting base has a second mounting hole, the second elastic element is sleeved on the second moving rod and placed together in the second mounting hole, and the second moving rod and the stop mounting base are clearance fit; When the first elastic element is in its natural state, the rear end face of the second moving rod abuts against the side surface of the first limiting element, and applies pressure to the second elastic element through the first limiting element; When the first elastic element is in a pre-tightened state, the rear end face of the second moving rod abuts against the side surface of the first moving rod, and the first elastic element is prevented from rebounding through the cooperation between the first limiting part and the rear end face of the second moving rod.
7. The separation signal triggering device for satellite ground testing according to claim 6, characterized in that, A second limiting member is provided on the rear end face of the second moving rod, and the shape of the upper surface of the second limiting member is adapted to the shape of the side surface of the first limiting part.
8. The separation signal triggering device for satellite ground testing according to claim 7, characterized in that, The second moving rod and the second limiting member are integrally formed.
9. The separation signal triggering device for satellite ground testing according to claim 7 or 8, characterized in that, A pull rope is provided on the second moving rod.
10. The separation signal triggering device for satellite ground testing according to claim 1, characterized in that, A baffle is also provided on the separation mechanism simulator; The baffle is located on the side opposite to the stop component, and the baffle limits the range of motion of the trigger component.