An acceleration sensor performance detection device and an environmental chamber

Abstract

The present invention provides an acceleration sensor performance detection device and an environmental box. The structure of the acceleration sensor performance detection device includes a main shaft rod, which is rotatably arranged in the environmental box, and the main shaft rod is partially arranged outside the environmental box; a mounting part, which is connected to the part of the main shaft rod located in the environmental box and is used to install the acceleration sensor; and a supporting part, which is connected to the main shaft rod and is used to support the main shaft rod. The acceleration sensor performance detection device and the environmental box can solve the problem of how to safely and efficiently adjust the angle of the acceleration sensor in the environmental box.

Description

Technical Field

[0001] The present application relates to the technical field of environmental testing of acceleration sensors, and in particular to an acceleration sensor performance detection device and an environmental chamber. Background Art

[0002] With the rapid development of my country's rail transit industry, people's requirements for vehicle safety and reliability are increasing day by day. As a key performance indicator of vehicles, acceleration sensors are also widely used in the field of rail transit. Due to the vast territory of my country, the climate span of the regions where EMUs pass through during long-distance operation is large, so a large number of high and low temperature tests are required to verify the reliability and stability of acceleration sensors under extreme working conditions.

[0003] The existing environmental test method for acceleration sensors is to fix the acceleration sensor on a bracket and put it into an environmental chamber for screening. During this period, the environmental chamber needs to be opened at regular intervals to adjust the angle of the sensor and measure whether the feedback signal of the sensor at different angles is normal, thereby determining when the sensor fails. During the test, it is necessary to open the environmental chamber to adjust the angle of the sensor, but this will destroy the uniformity of the temperature field in the environmental chamber. When resuming the test, the environmental chamber needs to reach the temperature field balance again. When multiple sensors are tested at the same time, the angles need to be adjusted one by one, which reduces the efficiency of the test. In low-temperature and high-temperature environment tests, there is a safety risk of frostbite or scald when opening the lid of the environmental chamber to adjust the angle of the sensor. Therefore, a safe and efficient way to adjust the angle of the acceleration sensor is needed. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide an acceleration sensor performance detection device and an environmental chamber to solve the problem of how to safely and efficiently adjust the angle of the acceleration sensor in the environmental chamber.

[0005] According to a first aspect of the present invention, an acceleration sensor performance detection device is provided, wherein the acceleration sensor performance detection device comprises: a main shaft rod rotatably arranged in the environmental box, and the main shaft rod partly passes through the outside of the environmental box; a mounting portion connected to the portion of the main shaft rod located in the environmental box, and used for mounting the acceleration sensor; and a supporting portion connected to the main shaft rod, and used for supporting the main shaft rod.

[0006] Preferably, the main shaft rod includes: a mounting rod, which passes through the environmental box, the first end of the mounting rod is located inside the environmental box, and the second end of the mounting rod is located outside the environmental box; an extension rod, which is connected to the second end of the mounting rod; and a curved handle, which is connected to the extension rod.

[0007] Preferably, the support portion includes: a first support component, which is arranged on a first side in the environmental box, and the main shaft rod is rotatably inserted into the first support component; and a second support component; which is arranged on a second side in the environmental box, and the main shaft rod is rotatably inserted into the second support component.

[0008] Preferably, the support portion further comprises a plurality of telescopic legs, and the plurality of telescopic legs are respectively arranged at the bottom of the first support component and the second support component, and are used to adjust the height of the first support component and the second support component.

[0009] Preferably, the first supporting component includes: a first transverse plate portion, the lower portions of both ends in the length direction are provided with the telescopic legs, and the telescopic legs are connected to the inner wall of the environmental box; and a first vertical plate portion, the first end of which is vertically connected to the first transverse plate portion, and the main shaft rod is rotatably passed through the second end of the first vertical plate portion; the second supporting component includes: a second transverse plate portion, the lower portions of both ends in the length direction are provided with the telescopic legs, and the telescopic legs are connected to the inner wall of the environmental box; and a second vertical plate portion, the first end of which is vertically connected to the second transverse plate portion, and the main shaft rod is rotatably passed through the second end of the second vertical plate portion.

[0010] Preferably, the support portion also includes a limiting portion, which includes: a first limiting rod, passing through a first end in the length direction of the first transverse plate portion and a first end in the length direction of the second transverse plate portion, both ends of the first limiting rod are provided with anti-slip pads, and the first limiting rod can be telescopically adjusted in length; and a second limiting rod, passing through a second end in the length direction of the first transverse plate portion and a second end in the length direction of the second transverse plate portion, both ends of the second limiting rod are provided with anti-slip pads, and the second limiting rod can be telescopically adjusted in length.

[0011] Preferably, the mounting portion comprises a plurality of sensor mounting plates, each of the sensor mounting plates rotates synchronously with the main shaft, and the sensor mounting plates are capable of mounting a plurality of the acceleration sensors.

[0012] Preferably, the plate surface of each of the sensor mounting plates is perpendicular to the axial direction of the main shaft, and the sensor mounting plate can be rotated 90° clockwise from the middle position and 90° counterclockwise from the middle position.

[0013] Preferably, the sensor mounting plate is respectively formed with a first bevel and a second bevel on both sides in the rotation direction, and a limit stop rod parallel to the main shaft rod is arranged below the mounting portion, and the limit stop rod is connected to the supporting portion; when the sensor mounting plate is rotated 90° clockwise from the middle position, the first bevel of the sensor mounting plate abuts against the limit stop rod; when the sensor mounting plate is rotated 90° counterclockwise from the middle position, the second bevel of the sensor mounting plate abuts against the limit stop rod.

[0014] According to a second aspect of the present invention, an environmental chamber is provided, wherein the environmental chamber comprises the acceleration sensor performance detection device as described above.

[0015] The acceleration sensor performance detection device and environmental chamber of the embodiments of the present invention have a main shaft that is rotatably disposed in the environmental chamber and partially penetrates outside the environmental chamber, a mounting portion is connected to the portion of the main shaft that is located in the environmental chamber, and the acceleration sensor is mounted on the mounting portion, and a supporting portion is located in the environmental chamber and is used to support the main shaft. An operator can rotate the portion of the main shaft that is located outside the environmental chamber, thereby rotating the acceleration sensor located in the environmental chamber, thereby effectively solving the problem of how to safely and efficiently adjust the angle of the acceleration sensor in the environmental chamber.

[0016] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 Schematic diagram of an acceleration sensor performance detection device according to the present invention.

[0019] Figure 2 4 is a cross-sectional view of an acceleration sensor performance detection device according to the present invention.

[0020] Figure 3 FIG. 4 is a schematic diagram of the acceleration sensor performance detection device according to the present invention from another angle.

[0021] Figure markings: 1-main shaft rod; 11-mounting rod; 12-extension rod; 13-curved handle; 2-mounting part; 21-sensor mounting plate; 211-first bevel; 212-second bevel; 22-limiting lever; 3-supporting part; 31-first supporting member; 311-first vertical plate portion; 312-first horizontal plate portion; 32-second supporting member; 321-second vertical plate portion; 322-second horizontal plate portion; 33-telescopic support foot; 34-first limiting lever; 35-second limiting lever; 36-anti-slip pad; 4-acceleration sensor. DETAILED DESCRIPTION

[0022] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0023] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0024] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0025] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0026] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0027] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0028] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0029] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0030] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0031] like Figures 1 to 3 As shown, according to a first aspect of the present invention, an acceleration sensor performance detection device is provided. The acceleration sensor performance detection device includes a main shaft rod 1, a mounting portion 2 and a supporting portion 3.

[0032] In the following description, reference will be made to Figures 1 to 3 The specific structure of the above components of the acceleration sensor performance detection device and the connection relationship of the above components are specifically described.

[0033] like Figures 1 to 3 As shown, in the embodiment, the main shaft rod 1 is rotatably arranged in the environmental box (not shown in the figure), and part of it is arranged outside the environmental box, so that the operator outside the environmental box can rotate the main shaft rod 1. The mounting portion 2 is connected to the part of the main shaft rod 1 located in the environmental box, and is used to install the acceleration sensor 4. When the main shaft rod 1 rotates, the acceleration sensor 4 fixed to the mounting portion 2 also rotates, and the angle of the acceleration sensor 4 will change. The supporting portion 3 is connected to the main shaft rod 1, and is used to support the main shaft rod 1.

[0034] Preferably, Figures 1 to 3 As shown, in an embodiment, the main shaft rod 1 may include a mounting rod 11, an extension rod 12 and a curved handle 13. The mounting rod 11 may be a cylindrical rod, which may be passed through an outer wall of one side of the environmental chamber. Specifically, the mounting rod 11 may pass through the wire outlet of the environmental chamber. Part of the mounting rod 11 is located inside the environmental chamber, while part of the mounting rod 11 is located outside the environmental chamber. Among them, the end of the mounting rod 11 located inside the environmental chamber may be the first end, and the end of the mounting rod 11 located outside the environmental chamber may be the second end. The extension rod 12 may be a cylindrical rod with a diameter smaller than that of the mounting rod 11, which is fixedly connected to the second end of the mounting rod 11. Specifically, as Figure 2 As shown, the end of the extension rod 12 may be formed with a thread groove, and the second end of the mounting rod 11 may be formed with a threaded protrusion that can match the thread groove, and the mounting rod 11 and the extension rod 12 may be threadedly connected. The curved handle 13 may be connected to the extension rod 12, and the curved handle 13 may include an integrally formed handle portion, a connecting rod and a collar, wherein the handle portion is used for the operator to hold, the connecting rod connects the handle portion and the collar, and the collar is sleeved on the extension rod 12 and is clamped and fixed to the extension rod 12.

[0035] During use, the operator can drive the extension rod 12 to rotate by turning the curved handle 13, and then rotate the mounting rod 11, so that the main shaft rod 1 rotates as a whole. Not limited to this, the above embodiment is only a preferred case. In actual use, the main shaft rod can also be formed in other cases, for example: the mounting rod can be completely located in the environmental box, and the extension rod can be extended into the environmental box and fixedly connected to the mounting rod, and the mounting rod and the extension rod can be integrally formed, and the extension rod and the curved handle can also be integrally formed.

[0036] Preferably, Figures 1 to 3As shown, in an embodiment, the support portion 3 may include a first support component 31 and a second support component 32. The first support component 31 may be disposed on a first side in the environmental chamber, and the second support component 32 may be disposed on a second side in the environmental chamber. The first side may be a side in the environmental chamber close to the curved handle 13, and the second side may be an opposite side to the first side. The spindle rod 1 may be rotatably passed through the first support component 31 and the second support component 32. Specifically, the mounting rod 11 may be passed through the first support component 31 and the second support component 32, and connected to the first support component 31 and the second support component 32 through bearings, so that the first support component 31 and the second support component 32 respectively support the mounting rod 11 from both sides of the length direction of the mounting rod 11, and enable the mounting rod 11 to rotate circumferentially.

[0037] Further, such as Figures 1 to 3 As shown, in an embodiment, the first support component 31 may include a first vertical plate portion 311 and a first horizontal plate portion 312. The first vertical plate portion 311 and the first horizontal plate portion 312 may both be rectangular plates, which are vertically connected to form an inverted "T" shape. The first end of the first vertical plate portion 311 is connected to the middle of the first horizontal plate portion 312, and the mounting rod 11 is vertically penetrated through the plate surface of the second end of the first vertical plate portion 311, and the first vertical plate portion 311 and the first horizontal plate portion 312 may be integrally formed. Telescopic legs 33 may also be provided at the bottom of both ends of the length direction of the first horizontal plate portion 312, which are used to adjust the height of the first support component 31 and level the two ends of the length direction of the first horizontal plate portion 312.

[0038] Specifically, Figures 1 to 3 As shown, in the embodiment, the telescopic support leg 33 can be a telescopic rod provided with a foot pad. The telescopic rod can be threadedly connected to the bottom of the first support component 31. The telescopic support leg 33 can be adjusted by adjusting the position of the nut on the telescopic rod (that is, after changing the position of the nut, the telescopic rod can be further inserted into the first support component 31 or the foot pad below it, thereby adjusting the height of the first support component 31), and the foot pad can be used for anti-slip and increasing the force-bearing area.

[0039] Similar, such as Figures 1 to 3As shown, in the embodiment, the second support member 32 may include a second vertical plate portion 321 and a second horizontal plate portion 322, and the second vertical plate portion 321 and the second horizontal plate portion 322 may both be rectangular plates, which are vertically connected to form an inverted "T" shape, and the second support member 32 is arranged in parallel with the first support member 31. The first end of the second vertical plate portion 321 is connected to the middle part of the second horizontal plate portion 322, and the mounting rod 11 is also vertically penetrated through the plate surface of the second end of the second vertical plate portion 321, and the second vertical plate portion 321 and the second horizontal plate portion 322 may be integrally formed. The bottom of the two ends of the second horizontal plate portion 322 in the length direction may also be provided with telescopic legs 33, which are used to level the first horizontal plate portion 312 and adjust the first support member 31 and the second support member 32 to equal heights, so that the mounting rod 11 can smoothly pass through the two.

[0040] In addition, preferably, Figures 1 to 3 As shown, in the embodiment, the support part 3 may further include a limiting part, and the limiting part may include a first limiting rod 34 and a second limiting rod 35. The first limiting rod 34 may be arranged at the first end in the length direction of the first transverse plate part 312 and the first end in the length direction of the second transverse plate part 322, so that the first limiting rod 34 is perpendicular to the plate surface of the first support component 31 and the second support component 32 at the same time. Square anti-skid pads 36 are also arranged at the ends of both ends in the length direction of the first limiting rod 34, and the anti-skid pads 36 may be rubber anti-skid pads, which are used to abut against the inner wall of the environmental box. The second limiting rod 35 may be arranged at the second end in the length direction of the first transverse plate part 312 and the second end in the length direction of the second transverse plate part 322, and the second limiting rod 35 and the first limiting rod 34 are arranged in parallel. Square anti-skid pads 36 may also be arranged at the ends of both ends in the length direction of the second limiting rod 35, which are used to abut against the inner wall of the environmental box.

[0041] Further, preferably, Figure 1 and Figure 2 As shown, in the embodiment, the length of the first limiting rod 34 can be adjusted telescopically. Specifically, the first limiting rod 34 can form a telescopic cylinder between the first support component 31 and the second support component 32, and the connecting rods at both ends of the telescopic cylinder can be extended into or extended from the telescopic cylinder. The length of the connecting rod that can be extended into the telescopic cylinder can be adjusted by changing the position of the nut on the connecting rod, thereby adjusting the overall length of the first limiting rod 34, so that the two ends of the first limiting rod 34 can just abut against the inner wall of the environmental chamber. The second limiting rod 35 can also be adjusted telescopically, and its structure can be the same as that of the first limiting rod 34, which will not be repeated here.

[0042] Preferably, Figures 1 to 3As shown, in the embodiment, the mounting portion 2 may include a plurality of sensor mounting plates 21. Specifically, the number of the sensor mounting plates 21 may be four as in the embodiment, and four acceleration sensors 4 may be mounted on the plate surface of each sensor mounting plate 21, and the acceleration sensors 4 may be connected to the sensor mounting plates 21 by bolts. The mounting rod 11 is vertically penetrated through the plate surface of the sensor mounting plate 21 and is fixedly connected to the sensor mounting plate 21, so that each sensor mounting plate 21 rotates synchronously with the mounting rod 11.

[0043] Further, preferably, the rotation angle of each sensor mounting plate 21 can be limited, that is, it can only rotate 90° clockwise from the middle position and 90° counterclockwise from the middle position, and the middle position can be the position of 0°, that is, the position where the sensor mounting plate 21 in the embodiment remains in a vertically upward state. Specifically, the sensor mounting plate 21 is formed with a first bevel 211 and a second bevel 212 on both sides in the rotation direction, and a limit stopper 22 is provided below the mounting portion 2, and the two ends of the limit stopper 22 are fixedly connected to the first support component 31 and the second support component 32, respectively. When the sensor mounting plate 21 rotates 90° clockwise, the first bevel 211 of the sensor mounting plate 21 just contacts the limit stopper 22, so that the sensor mounting plate 21 cannot continue to rotate clockwise, and when the sensor mounting plate 21 rotates 90° counterclockwise, the second bevel 212 of the sensor mounting plate 21 just contacts the limit stopper 22, so that the sensor mounting plate 21 cannot continue to rotate counterclockwise, thereby limiting the rotation angle of the sensor mounting plate 21. Since the reading of the acceleration sensor 4 is meaningful only at a specific angle (such as +90°, 0° or -90°), such a setting enables the angle of the acceleration sensor 4 to be quickly and accurately switched between +90° and -90°.

[0044] However, it is not limited to this, and the number of limit levers being one is only a case in the embodiment. In the case where the sensor mounting plate requires two limit levers or more limit levers to limit its rotation angle, the number of limit levers can be two or more, as long as the limiting function of the limit lever can be realized.

[0045] In addition, according to a second aspect of the present invention, an environmental chamber is provided. The environmental chamber includes the acceleration sensor performance detection device as described above, and the acceleration sensor performance detection device is arranged in the environmental chamber.

[0046] During use, first install all the acceleration sensors 4 to be tested on the sensor mounting plate 21, then put the acceleration sensor performance detection device into the environmental chamber, and adjust the telescopic legs 33 to make the first support component 31 and the second support component 32 level. And adjust the first limit rod 34 and the second limit rod 35 so that the anti-skid pad 36 at their ends abuts against the inner wall of the environmental chamber to ensure the stability of the entire device. Then extend the mounting rod 11 from the environmental chamber, and connect the extension rod 12 and the curved handle 13. By turning the curved handle 13, the main shaft rod 1 can be rotated, and then the sensor mounting plate 21 fixedly connected to the main shaft rod 1 can be rotated, so that the angle of the acceleration sensor 4 changes. Since the mounting part 2 is provided with multiple sensor mounting plates 21, and each sensor mounting plate 21 can be installed with multiple acceleration sensors 4, the operator can safely and efficiently adjust the angles of multiple acceleration sensors 4 outside the environmental chamber.

[0047] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An acceleration sensor performance detection device, used to be arranged in an environmental chamber, characterized in that: The acceleration sensor performance detection device comprises: A main shaft rod is rotatably disposed in the environmental box, and a portion of the main shaft rod is disposed outside the environmental box; A mounting portion connected to the portion of the main shaft located in the environmental chamber and used for mounting an acceleration sensor; and A supporting portion, connected to the main shaft and used to support the main shaft; The mounting portion includes a plurality of sensor mounting plates, each of which rotates synchronously with the main shaft, and the sensor mounting plates can be equipped with a plurality of acceleration sensors; The plate surface of each sensor mounting plate is perpendicular to the axial direction of the main shaft rod, and the sensor mounting plate can be rotated 90° clockwise from the middle position and 90° counterclockwise from the middle position; The sensor mounting plate is formed with a first bevel and a second bevel on both sides in the rotation direction, respectively; a limit stop rod parallel to the main shaft rod is provided below the mounting portion, and the limit stop rod is connected to the support portion; When the sensor mounting plate is rotated 90° clockwise from the middle position, the first bevel of the sensor mounting plate abuts against the limit stop rod; When the sensor mounting plate is rotated 90° counterclockwise from the middle position, the second bevel of the sensor mounting plate abuts against the limit stop rod.

2. The acceleration sensor performance detection device according to claim 1, characterized in that: The main shaft comprises: A mounting rod is inserted into the environmental box, wherein a first end of the mounting rod is located inside the environmental box, and a second end of the mounting rod is located outside the environmental box; an extension rod connected to the second end of the mounting rod; and A curved handle is connected to the extension rod.

3. The acceleration sensor performance detection device according to claim 1, characterized in that: The support portion comprises: A first supporting member, disposed at a first side of the environmental chamber, wherein the main shaft is rotatably disposed through the first supporting member; and A second supporting member is disposed on a second side of the environmental chamber, and the main shaft rod is rotatably disposed through the second supporting member.

4. The acceleration sensor performance detection device according to claim 3, characterized in that: The support portion further includes a plurality of telescopic legs, which are respectively disposed at the bottom of the first support component and the second support component and are used to adjust the height of the first support component and the second support component.

5. The acceleration sensor performance detection device according to claim 4, characterized in that: The first supporting member comprises: The first transverse plate portion has the telescopic legs disposed at the lower parts of both ends in the length direction, and the telescopic legs are connected to the inner wall of the environmental chamber; and A first vertical plate portion, a first end of which is vertically connected to the first horizontal plate portion, and the main shaft rod is rotatably disposed through the second end of the first vertical plate portion; The second supporting member comprises: The second transverse plate portion has the telescopic legs disposed at the lower parts of both ends in the length direction, and the telescopic legs are connected to the inner wall of the environmental chamber; and The first end of the second vertical plate portion is vertically connected to the second horizontal plate portion, and the main shaft rod is rotatably arranged through the second end of the second vertical plate portion.

6. The acceleration sensor performance detection device according to claim 5, characterized in that: The support portion further includes a limiting portion, and the limiting portion includes: A first limiting rod, which passes through a first end of the first transverse plate portion in a length direction and a first end of the second transverse plate portion in a length direction, both ends of the first limiting rod are provided with anti-slip pads, and the first limiting rod can be telescopically adjusted in length; and The second limiting rod is passed through the second end of the first transverse plate portion in the length direction and the second end of the second transverse plate portion in the length direction. Anti-slip pads are arranged at both ends of the second limiting rod. The second limiting rod can be telescopically adjusted in length.

7. An environmental chamber, characterized in that: The environmental chamber comprises the acceleration sensor performance detection device according to any one of claims 1 to 6.

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