Comprehensive tester and radio frequency line loss calibration device

Abstract

The utility model discloses a kind of comprehensive tester and radio frequency line loss calibration device, and comprehensive tester includes: instrument main body, first connecting part is equipped on instrument main body;Pivot, pivot is rotatably arranged in instrument main body;Protective roller shutter, protective roller shutter one end is connected pivot, the other end is equipped with second connecting part;Among them, second connecting part connects first connecting part, to position protective roller shutter on the surface of instrument main body.The utility model is cooperated with pivot and protective roller shutter, dust is blocked, the measurement accuracy of comprehensive tester is improved, and protective roller shutter is fixed using pivot, avoid the loss of spare part, it is convenient to carry.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency testing equipment technology, and in particular to a comprehensive tester and a radio frequency line loss calibration device. Background Technology

[0002] Current electronic communication technology is highly advanced, and radio frequency (RF) calibration is a crucial step in mobile phone manufacturing. Detailed standards exist for the RF specifications of communication equipment; therefore, the accuracy of RF calibration determines whether the mobile phone's RF performance meets mandatory requirements. Due to the inherent characteristics of RF signals, losses occur during transmission. If this loss cannot be accurately measured using a suitable method, the RF calibration performed on the mobile phone will be unreasonable, resulting in the calibrated phone's RF specifications failing to meet requirements. Comprehensive testers are typically used for measurement, but these can sometimes have significant measurement errors. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a comprehensive testing instrument to improve measurement accuracy.

[0004] A comprehensive testing instrument according to an embodiment of the present invention includes: an instrument body, wherein a first connecting portion is provided on the instrument body; a rotating shaft, wherein the rotating shaft is rotatably disposed on the instrument body; and a protective roller shutter, wherein one end of the protective roller shutter is connected to the rotating shaft and the other end is provided with a second connecting portion; wherein the second connecting portion is connected to the first connecting portion to position the protective roller shutter on the surface of the instrument body.

[0005] According to the embodiment of this utility model, the comprehensive tester, through the cooperation of the rotating shaft and the protective roller shutter, blocks dust and improves the measurement accuracy of the comprehensive tester. Furthermore, the rotating shaft is used to fix the protective roller shutter, preventing the loss of parts and making it convenient to carry.

[0006] In some embodiments, the rotating shaft is provided with two spaced-apart first limiting portions, and the protective roller shutter is disposed between the two first limiting portions.

[0007] In some embodiments, the instrument body is provided with an elastic element, one end of which is connected to the rotating shaft and the other end of which is connected to the instrument body, so that the second connecting portion has a tendency to move toward the rotating shaft.

[0008] In some embodiments, the instrument body is provided with a mounting cover, the elastic element is disposed inside the mounting cover, and the rotating shaft is provided with a second limiting part, which is disposed inside the mounting cover.

[0009] In some embodiments, the instrument body is provided with a guide structure that extends along the direction from the rotating shaft to the first connecting portion, and the second connecting portion is movably disposed on the guide structure.

[0010] In some embodiments, the guide structure is provided with a guide groove, and the end of the protective roller shutter away from the rotating shaft is provided with a support rod, the support rod is provided with a roller, and the roller is located in the guide groove.

[0011] In some embodiments, the protective roller shutter has a support rod at the end away from the pivot member, and the first connecting part is configured as a positioning hook, which engages with the support rod.

[0012] In some embodiments, one side of the instrument body is configured as an operating surface, and the first connecting part and the rotating shaft are located on opposite sides of the operating surface; or, one of the first connecting part and the rotating shaft is located on an adjacent side of the operating surface, and the other of the first connecting part and the rotating shaft is located at the end of the operating surface away from the first one.

[0013] In some embodiments, the protective roller shutter is made of waterproof cloth; and / or, a silicone pad is provided at the bottom of the instrument body.

[0014] The radio frequency line loss calibration device according to an embodiment of the present invention includes: a comprehensive tester, wherein the comprehensive tester is the aforementioned comprehensive tester and the comprehensive tester is provided with a plug-in portion; and a wiring module, wherein the wiring module is provided with wiring terminals and the wiring terminals are plugged into the plug-in portion.

[0015] According to the embodiment of the present invention, the radio frequency line loss calibration device, through the cooperation of the rotating shaft and the protective roller shutter, blocks dust and improves the measurement accuracy of the comprehensive tester. Furthermore, the rotating shaft is used to fix the protective roller shutter, preventing the loss of parts and making it convenient to carry.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the structure of the radio frequency line loss calibration device in the embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the wiring module in an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram showing the positions of the rotating shaft, mounting cover, and protective roller shutter in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the mounting cover in an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram showing the cooperation between the second connecting part and the guide groove in an embodiment of this utility model.

[0023] Figure label:

[0024] 1. Instrument body; 11. Operating surface; 2. Handle; 31. Mounting cover; 311. Elastic element; 32. Rotating shaft; 321. First limiting part; 322. Second limiting part; 33. Protective roller shutter; 34. Second connecting part; 341. Roller; 35. First connecting part; 41. Guide structure; 42. Guide groove; 51. Wiring module; 52. Clamping piece; 521. Threaded groove; 53. Fixing nut; 54. Wiring terminal; 6. Silicone pad. Detailed Implementation

[0025] The embodiments of this utility model 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of the same feature, used to distinguish and describe features, without any order or distinction of importance.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The comprehensive testing instrument of this utility model is described below with reference to the accompanying drawings.

[0031] Reference Figures 1 to 5 As shown, a comprehensive testing instrument according to an embodiment of the present utility model includes: an instrument body 1, a rotating shaft 32, and a protective roller shutter 33.

[0032] The instrument body 1 is provided with a first connecting part 35. A rotating shaft 32 is rotatably mounted on the instrument body 1. One end of the protective roller shutter 33 is connected to the rotating shaft 32, and the other end is provided with a second connecting part 34. The second connecting part 34 is connected to the first connecting part 35 to position the protective roller shutter 33 on the surface of the instrument body 1.

[0033] The rotating shaft 32 is rotatably mounted on the instrument body 1. One end of the protective roller shutter 33 is connected to the rotating shaft 32, and the second connecting part 34 at the other end can be connected to the first connecting part 35 on the instrument body 1. When the first connecting part 35 is connected to the second connecting part 34, the protective roller shutter 33 is fixed. The protective roller shutter 33 covers the outer surface of the instrument body 1 to block dust. When the first connecting part 35 is disconnected from the second connecting part 34, the protective roller shutter 33 retracts onto the rotating shaft 32, exposing the instrument body 1.

[0034] Current electronic communication technology is highly advanced, and radio frequency (RF) calibration is a crucial step in mobile phone manufacturing. The state has established detailed national standards for the RF performance of communication equipment; therefore, the accuracy of RF calibration determines whether the mobile phone's RF performance meets mandatory national regulations. Due to the inherent characteristics of RF signals, losses occur during transmission. If this loss cannot be accurately measured using a suitable method, the RF calibration performed on the mobile phone will be unreasonable, resulting in the calibrated phone's RF performance failing to meet specifications. Comprehensive testers are typically used for measurement, but these can sometimes have significant measurement errors.

[0035] Through extensive experiments and research, the inventors discovered that dust accumulates on the surface of the integrated testing instrument, which affects its normal operation and causes a decrease in measurement accuracy.

[0036] In this embodiment of the utility model, through the cooperation of the protective roller shutter 33 and the rotating shaft 32, the protective roller shutter 33 covers the instrument body 1, and the protective roller shutter 33 plays the role of blocking dust, preventing dust from accumulating on the instrument body 1 and affecting normal use. At the same time, the rotating shaft 32 is installed on the instrument body 1. When the protective roller shutter 33 is not needed, the protective roller shutter 33 retracts onto the rotating shaft 32. The protective roller shutter 33 always maintains a connection with the instrument body 1, preventing the loss of parts, saving space, and making it convenient to carry.

[0037] According to the embodiment of the present utility model, the comprehensive tester, through the cooperation of the rotating shaft 32 and the protective roller shutter 33, blocks dust and improves the measurement accuracy of the comprehensive tester. Furthermore, the rotating shaft 32 is used to fix the protective roller shutter 33, preventing the loss of parts and making it convenient to carry.

[0038] Reference Figure 3 As shown, in some embodiments, the rotating shaft 32 is provided with two spaced first limiting portions 321, and the protective roller shutter 33 is disposed between the two first limiting portions 321.

[0039] There are two first limiting parts 321, which are spaced apart. The two first limiting parts 321 are located on opposite sides of the protective roller shutter 33, which restricts the protective roller shutter 33 and prevents the protective roller shutter 33 from falling off the rotating shaft 32.

[0040] In the above scheme, by setting the first limiting part 321, the protective roller shutter 33 is limited, so that the protective roller shutter 33 is always on the rotating shaft 32, making the comprehensive tester more reliable.

[0041] Reference Figure 4 As shown, in some embodiments, the instrument body 1 is provided with an elastic element 311, one end of which is connected to the rotating shaft 32, and the other end of which is connected to the instrument body 1, so that the second connecting part 34 has a tendency to move towards the rotating shaft 32.

[0042] One end of the elastic element 311 is connected to the pivot element 32, which makes the second connecting part 34 tend to move towards the pivot element 32. That is, the protective roller shutter 33 automatically retracts onto the pivot element 32. After the second connecting part 34 is disconnected from the first connecting part 35, the elastic force of the elastic element 311 acts on the pivot element 32, causing the pivot element 32 to rotate and retract the protective roller shutter 33.

[0043] In the above solution, by setting the elastic element 311, the second connecting part 34 tends to move towards the rotating shaft 32, which reduces the operator's operation, makes it easier to use, and improves convenience.

[0044] Specifically, the elastic element 311 is a coil spring, one end of which is connected to the rotating shaft 32, causing the rotating shaft 32 to rotate automatically.

[0045] Reference Figure 3 , Figure 4 As shown, in some embodiments, the instrument body 1 is provided with a mounting cover 31, the elastic element 311 is provided inside the mounting cover 31, and the rotating shaft 32 is provided with a second limiting part 322, which is provided inside the mounting cover 31.

[0046] The elastic element 311 and the second limiting part 322 are both disposed inside the mounting cover 31. The mounting cover 31 covers the elastic element 311 and the second limiting part 322, isolating the elastic element 311 from the external space. The second limiting part 322 cooperates with the mounting cover 31 to prevent the rotating shaft 32 from detaching.

[0047] In the above scheme, by setting the mounting cover 31 to cover the elastic element 311 and the second limiting part 322, the elastic element 311 is isolated from the external space, so that the elastic element 311 always works stably and cooperates stably with the second limiting part 322. The second limiting part 322 is always inside the mounting cover 31, thereby fixing the rotating shaft 32 to the instrument body 1, preventing the rotating shaft 32 from falling off, and making the operation of the comprehensive tester more reliable.

[0048] Specifically, there are two mounting covers 31, which are located on both sides.

[0049] Reference Figure 1 , Figure 5 As shown, in some embodiments, the instrument body 1 is provided with a guide structure 41, which extends along the direction from the rotating shaft 32 to the first connecting part 35, and the second connecting part 34 is movably provided on the guide structure 41.

[0050] The guide structure 41 extends from the pivot 32 to the first connecting part 35, and the second connecting part 34 is movably disposed on the guide structure 41. The guide structure 41 plays a guiding role and guides the second connecting part 34 to move stably.

[0051] In the above scheme, by setting a guide structure 41 on the instrument body 1, the movement of the second connecting part 34 is guided by the guide structure 41, making the movement of the second connecting part 34 more stable, and making the operation of the integrated tester more stable and reliable.

[0052] Reference Figure 5 As shown, in some embodiments, the guide structure 41 is provided with a guide groove 42, and the end of the protective roller shutter 33 away from the rotating shaft 32 is provided with a support rod, and the support rod is provided with a roller 341, which is located in the guide groove 42.

[0053] The guide groove 42 is set on the guide structure 41, the support rod is the second connecting part 34, the roller 341 on the support rod is located in the guide groove 42, and the guide groove 42 plays a guiding role.

[0054] In the above scheme, through the cooperation of guide groove 42 and roller 341, guide groove 42 guides roller 341 to move, making the movement of roller 341 more stable, thereby improving reliability. At the same time, the shape of roller 341 facilitates movement and improves convenience.

[0055] Specifically, the guide structure 41 is a guide frame, and the guide groove 42 is constructed as an L-shaped slide. The L-shaped slide has an opening at one end near the first connecting part 35.

[0056] Reference Figure 1 As shown, in some embodiments, the protective roller shutter 33 is provided with a support rod at the end away from the pivot member 32, and the first connecting part 35 is constructed as a positioning hook, which engages with the support rod.

[0057] The support rod is the second connecting part 34, and the positioning hook has a hook-shaped structure. The support rod is stuck on the positioning hook to fix one end of the protective roller shutter 33, so that the protective roller shutter 33 covers the instrument body 1 and blocks dust.

[0058] In the above solution, one end of the protective roller shutter 33 is fixed by the cooperation of the support rod and the positioning hook. The structure is simple and practical. The positioning can be completed by pulling the protective roller shutter 33. The operation is simple and convenient.

[0059] Reference Figure 1 As shown, in some specific embodiments, there are multiple positioning hooks, which are spaced apart along the length of the instrument body 1, thus improving stability.

[0060] In some embodiments, one side of the instrument body 1 is configured as an operating surface 11, and the first connecting part 35 and the rotating shaft 32 are disposed on opposite sides of the operating surface 11.

[0061] The operating surface 11 is provided with one or more of the following: operating buttons, screen, and plug interface. The first connecting part 35 and the rotating shaft 32 are located on opposite sides of the operating surface 11. The protective roller shutter 33 covers the operating surface 11, giving full play to the blocking effect and improving the utilization rate.

[0062] Reference Figure 1 As shown, in some other embodiments, one side of the instrument body 1 is configured as an operating surface 11, and one of the first connecting part 35 and the rotating shaft 32 is provided on the side adjacent to the operating surface 11, and the other of the first connecting part 35 and the rotating shaft 32 is provided at the end of the operating surface 11 away from the first one.

[0063] The operating surface 11 is provided with one or more of the following: operating buttons, screen, and plug interface. One of the first connecting part 35 and the rotating shaft 32 is located on the side adjacent to the operating surface 11, and the other of the first connecting part 35 and the rotating shaft 32 is located on the end of the operating surface 11 opposite to the first one. The protective roller shutter 33 is covered on the operating surface 11 to give full play to the blocking effect and improve the utilization rate.

[0064] In some embodiments, the protective roller shutter 33 is made of waterproof fabric. The waterproof fabric has good water resistance and can effectively block liquids, thus improving the protective effect of the protective roller shutter 33.

[0065] Reference Figure 1 As shown, in some embodiments, a silicone pad 6 is provided at the bottom of the instrument body 1. By providing the silicone pad 6 at the bottom of the instrument body 1, the shock absorption capacity is increased, reducing the probability of damage to the comprehensive tester, and at the same time improving the anti-slip properties.

[0066] Reference Figure 1 As shown, in some embodiments, the instrument body 1 is provided with a handle 2 to help the operator and improve convenience.

[0067] The following is combined Figures 1 to 5 This describes a specific embodiment of the comprehensive tester of this utility model.

[0068] A comprehensive testing instrument includes: instrument body 1, rotating shaft 32, and protective roller shutter 33.

[0069] A handle 2 is hinged to the top of the instrument body 1.

[0070] The instrument body 1 has mounting covers 31 on both sides. A rotating shaft 32 is rotatably mounted inside the two mounting covers 31. A protective roller shutter 33 is wrapped around the surface of the rotating shaft 32. A support rod is installed at one end of the protective roller shutter 33. Positioning hooks are fixedly installed on both sides of the bottom of the instrument body 1. The support rod is hooked inside the positioning hook.

[0071] The guiding mechanism is a guide frame, and the support rod slides inside the guide frame.

[0072] The inner walls of the two mounting covers 31 are equipped with coil springs, and both ends of the rotating shaft are fixedly connected to one end of the coil spring.

[0073] The inner wall of the guide frame is provided with an L-shaped groove, and rollers 341 are rotatably installed at both ends of the support rod. The rollers 341 are rolled inside the L-shaped groove, and the end of the L-shaped groove near the positioning hook is an open through groove.

[0074] Both ends of the pivot 32 are fixedly installed with first limiting parts 321 near the protective roller shutter 33.

[0075] The protective roller shutter 33 is made of waterproof fabric.

[0076] Silicone pads 6 are fixedly installed around the bottom of the instrument body 1.

[0077] In practical use: When the support rod is pulled, the rotating shaft 32 with the protective roller shutter 33 wrapped around its surface rotates inside the mounting cover 31. The rotation of the rotating shaft 32 causes the protective roller shutter 33 to unroll from the rotating shaft 32 and move with the support rod to cover the surface of the instrument body 1. When the support rod is pulled to the positioning hook at the bottom of the instrument body 1, the support rod is hooked inside the positioning hook to prevent the support rod from retracting. The protective roller shutter 33 plays a role in blocking dust and preventing dust from accumulating on the surface of the equipment, thus affecting normal use.

[0078] In practical use: the support rod moves inside the guide frame, so that both ends of the support rod move horizontally in sync, avoiding the tilt of the support rod causing the protective roller shutter 33 to tilt as well, and ensuring that the protective roller shutter 33 can also be rolled up synchronously when it is rolled up.

[0079] In practical use: The inner wall of the mounting cover 31 is equipped with a coil spring, and both ends of the rotating shaft 32 are fixedly connected to one end of the coil spring. When the support rod drives the rotating shaft 32 to rotate, the coil spring retracts and stores force. When the support rod is removed from the positioning hook, the coil spring releases force and drives the rotating shaft 32 to rotate, thereby automatically retracting the protective roller shutter 33 to the surface of the rotating shaft 32.

[0080] In practical use: The inner wall of the guide frame is provided with an L-shaped slide groove. The support rod rotates inside the L-shaped slide groove through the rollers 341 at both ends, so that the support rod slides along the L-shaped slide groove through the rollers 341 during the stretching and retraction process, so that the protective roller shutter 33 connected to the support rod maintains stable opening and closing. The L-shaped slide groove is a through groove near the positioning hook, so that the support rod can be removed from the L-shaped slide groove and hooked into the positioning hook.

[0081] In practical use: the first limiting part 321 installed at both ends of the rotating shaft 32 near the protective roller shutter 33 can limit the protective roller shutter 33 and prevent the protective roller shutter 33 from deviating when it is rolled up.

[0082] The protective roller shutter 33 is made of waterproof fabric.

[0083] In practical use: The protective roller shutter 33, made of waterproof fabric, has good waterproof properties, which improves the protective effect of the protective roller shutter 33.

[0084] Silicone pads 6 are fixedly installed around the bottom of the instrument body 1.

[0085] In practical use: the silicone pad 6 has a certain shock absorption effect relative to the metal base, and can also improve anti-slip properties.

[0086] When the device is finished using, pull the support rod to rotate the rotating shaft 32. The protective roller shutter 33 is unrolled under the rotation of the rotating shaft 32. The support rod rolls in the guide frame through the rollers 341 at both ends, so that the protective roller shutter 33 covers the surface of the instrument body 1. The protective roller shutter 33 is made of waterproof cloth, which not only prevents dust from adhering to the surface of the equipment, but also has a waterproof function and plays a protective role.

[0087] The beneficial effects are:

[0088] (1) Through the provided protective mechanism, when the support rod is pulled, the rotating shaft 32 with the protective roller shutter 33 wrapped on the surface will rotate inside the mounting cover 31. The rotation of the rotating shaft 32 causes the protective roller shutter 33 to be unrolled from the rotating shaft 32 and move with the support rod to cover the surface of the instrument body 1. When the support rod is pulled to the positioning hook at the bottom of the instrument body 1, the support rod is hooked inside the positioning hook to prevent the support rod from retracting. The protective roller shutter 33 plays the role of blocking dust and preventing dust from accumulating on the surface of the equipment, thus affecting normal use.

[0089] (2) An L-shaped groove is provided on the inner wall of the guide frame. The support rod rotates inside the L-shaped groove through the rollers 341 at both ends, so that the support rod slides along the L-shaped groove through the rollers 341 during the stretching and retraction process, so that the protective roller shutter 33 connected to the support rod can maintain stable opening and closing. The L-shaped groove is a through groove near the positioning hook, so that the support rod can be removed from the L-shaped groove and hooked in the positioning hook.

[0090] The radio frequency line loss calibration device according to an embodiment of the present invention includes: a comprehensive tester and a wiring module 51.

[0091] The integrated tester is equipped with a connector. The wiring module 51 is equipped with a wiring terminal 54, which is connected to the connector.

[0092] Specifically, the surface of the wiring module 51 is equipped with several clamping pieces 52, which are arranged in a ring shape. The outer wall of each clamping piece 52 is provided with a threaded groove 521. The surface of the threaded groove 521 is threaded with a fixing nut 53. The back of the wiring module 51 is equipped with a wiring terminal 54, which is plugged into the plug-in part on the surface of the integrated tester.

[0093] When it is necessary to connect test wires, insert both ends of the test wires into the clamping plates 52 on the surface of the wiring module 51. By turning the fixing nut 53 connected to the threaded groove 521, the clamping plates 52 arranged in a ring are brought closer to each other, and the wires are clamped and fixed by the clamping plates 52. This allows for the fixing and clamping of test wires of different diameters. The wiring terminal 54 installed on the back of the wiring module 51 is inserted into the instrument body 1, allowing the wiring module 51 to be disassembled relative to the instrument body 1 for easy maintenance.

[0094] According to the embodiment of the present utility model, the radio frequency line loss calibration device, through the cooperation of the rotating shaft 32 and the protective roller shutter 33, blocks dust and improves the measurement accuracy of the comprehensive tester. Furthermore, the rotating shaft 32 is used to fix the protective roller shutter 33, preventing the loss of parts and making it convenient to carry.

[0095] Other components and operations of the comprehensive tester according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0096] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0097] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A comprehensive testing instrument, characterized in that, include: The instrument body (1) is provided with a first connecting part (35); A rotating shaft (32) is rotatably disposed on the instrument body (1); A protective roller shutter (33) is provided, one end of which is connected to the pivot (32), and the other end is provided with a second connecting part (34); wherein, The second connecting part (34) connects to the first connecting part (35) to position the protective roller shutter (33) on the surface of the instrument body (1).

2. The comprehensive testing instrument according to claim 1, characterized in that, The rotating shaft (32) is provided with two spaced first limiting parts (321), and the protective roller shutter (33) is located between the two first limiting parts (321).

3. The comprehensive testing instrument according to claim 1, characterized in that, The instrument body (1) is provided with an elastic element (311), one end of which is connected to the rotating shaft (32), and the other end of which is connected to the instrument body (1), so that the second connecting part (34) has a tendency to move toward the rotating shaft (32).

4. The comprehensive testing instrument according to claim 3, characterized in that, The instrument body (1) is provided with a mounting cover (31), the elastic element (311) is provided inside the mounting cover (31), and the rotating shaft (32) is provided with a second limiting part (322), which is provided inside the mounting cover (31).

5. The comprehensive testing instrument according to claim 1, characterized in that, The instrument body (1) is provided with a guide structure (41), which extends along the direction from the rotating shaft (32) to the first connecting part (35), and the second connecting part (34) is movably provided on the guide structure (41).

6. The comprehensive testing instrument according to claim 5, characterized in that, The guide structure (41) is provided with a guide groove (42), and the protective roller shutter (33) is provided with a support rod at one end away from the rotating shaft (32). The support rod is provided with a roller (341), and the roller (341) is located in the guide groove (42).

7. The comprehensive testing instrument according to claim 1, characterized in that, The protective roller shutter (33) has a support rod at one end away from the pivot (32), and the first connecting part (35) is configured as a positioning hook, which engages with the support rod.

8. The comprehensive testing instrument according to claim 7, characterized in that, One side of the instrument body (1) is configured as an operating surface (11), and the first connecting part (35) and the rotating shaft (32) are located on opposite sides of the operating surface (11); or, one of the first connecting part (35) and the rotating shaft (32) is located on an adjacent side of the operating surface (11), and the other of the first connecting part (35) and the rotating shaft (32) is located at the end of the operating surface (11) away from the first one.

9. The comprehensive testing instrument according to any one of claims 1 to 8, characterized in that, The protective roller shutter (33) is made of waterproof cloth; and / or, the bottom of the instrument body (1) is provided with a silicone pad (6).

10. A radio frequency line loss calibration device, characterized in that, include: A comprehensive tester, wherein the comprehensive tester is the comprehensive tester according to any one of claims 1 to 8, and the comprehensive tester is provided with a plug-in portion; Wiring module (51), the wiring module (51) is provided with wiring terminal (54), the wiring terminal (54) is plugged into the plug part.

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