A portable spectrum analyzer for electrical instruments
By designing an anti-detachment mechanism with an anti-detachment cover, support spring, and positioning block on the spectrum analyzer, the problem of easy loosening and detachment of the connector and connecting wire is solved, ensuring the stability of the connection and the reliability of RF signal testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHOU JISHI (SHANGHAI) ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-30
AI Technical Summary
The connection between the spectrum analyzer's connector and the connecting cable is prone to loosening or detachment, affecting the RF signal testing results.
An anti-detachment mechanism was designed, which includes an anti-detachment cover, a support spring, and a positioning block. Through threaded connection and elastic reset mechanism, a stable connection between the connecting wire and the wiring port is ensured.
It effectively prevents the connection cable from loosening and falling off the connector, thus improving the stability and reliability of RF signal testing.
Smart Images

Figure CN224436443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spectrum analyzers, specifically a portable spectrum analyzer for electrical instruments. Background Technology
[0002] A spectrum analyzer is an electronic measuring instrument used to analyze the frequency components of electrical signals. Its core function is to convert time-domain signals into frequency-domain signals and display parameters such as the amplitude and power of each frequency component, helping users understand the spectral characteristics of the signal.
[0003] When using a spectrum analyzer, the wiring port is often directly plugged into the spectrum analyzer interface. However, repeated plugging and unplugging over a long period of time can easily cause the wiring port and the connecting cable to become loose, or even cause the connecting cable to fall off the interface after insertion, thus affecting the test results of the radio frequency signal. Utility Model Content
[0004] To address the shortcomings of existing technologies, which are prone to loosening between the connector and the wire due to repeated plugging and unplugging over a long period, and even the possibility of the wire coming loose from the interface after insertion, this invention proposes a portable spectrum analyzer for electrical instruments.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a portable spectrum analyzer for electrical instruments, including a spectrum analyzer body, the spectrum analyzer body including a housing, a wiring port body fixedly connected to the bottom of the front side of the housing, and a connecting wire body inserted into the front side of the wiring port body;
[0006] An anti-detachment mechanism is provided on one side of the surface of the wiring port body. The anti-detachment mechanism includes an anti-detachment cover. A groove is provided on one side of the inner cavity of the anti-detachment cover. A support spring is fixedly connected to one side of the inner wall of the groove. A positioning block is fixedly connected to one end of the support spring. The positioning block is slidably connected to the inside of the groove.
[0007] Preferably, the top and bottom of the surface of the connecting wire body are provided with arc-shaped grooves, the shape of which is the same as that of the positioning block, and the inside of the arc-shaped groove is engaged with the surface of the positioning block.
[0008] Preferably, the surface of the connecting wire body is provided with an inclined groove, and the inclined groove is set at an angle.
[0009] Preferably, a reset mechanism is provided on the front side of the spectrum analyzer body. The reset mechanism includes a baffle, which is fixed to the front side of the spectrum analyzer body and sleeved on the surface of the wiring port body. A reset spring is fixedly connected to the front side of the baffle. There are multiple reset springs, and a movable base is fixedly connected to the other end of the reset spring.
[0010] Preferably, the inner cavity of the movable seat is provided with a rotating groove, and a connecting block is slidably connected to the inner cavity of the rotating groove. The front side of the connecting block is fixedly connected to the back side of the anti-detachment cover.
[0011] Preferably, a threaded groove is provided on one side of the surface of the wiring port body, and the threaded groove is threadedly connected to the anti-disengagement cover. One end of the anti-disengagement cover is located on the surface of the connecting wire body, while the other end of the anti-disengagement cover is located on the surface of the wiring port body.
[0012] Preferably, protective pads are fixedly connected to the four corners of the shell surface, and a handle is rotatably connected to the shell surface, with the handle spanning across the shell surface.
[0013] The advantages of this utility model are:
[0014] This invention involves inserting the connecting cable body into the surface of the wiring port body, then rotating the anti-disengagement cover. With the anti-disengagement cover threadedly connected to the wiring port body, the anti-disengagement cover moves forward. The movement of the anti-disengagement cover causes the positioning block to engage inside the arc-shaped groove, thereby positioning the connecting cable body. At the same time, the anti-disengagement cover covers the surface of the connecting cable body, further securing the connecting cable body and the wiring port body, achieving the anti-disengagement effect. This solves the problem that repeated insertion and removal over a long period of time can easily lead to loosening between the wiring port and the connecting cable, and even the problem that the inserted connecting cable may easily detach from the interface. Attached Figure Description
[0015] 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 these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a cross-sectional view of the wiring port body structure of this utility model;
[0018] Figure 3 This utility model Figure 2 A magnified view of a portion of point A in the middle;
[0019] Figure 4 This utility model Figure 3 A magnified view of a portion of point B in the middle;
[0020] Figure 5This is a schematic diagram showing the connection between the anti-detachment cover and the main body structure of the connecting cable port of this utility model.
[0021] In the diagram: 1. Spectrum analyzer body; 11. Housing; 12. Handle; 13. Protective pad; 14. Wiring port body; 15. Connecting cable body; 16. Arc groove; 17. Inclined groove; 18. Threaded groove; 2. Reset mechanism; 21. Baffle; 22. Reset spring; 23. Rotary groove; 24. Moving base; 25. Connecting block; 3. Anti-detachment mechanism; 31. Anti-detachment cover; 32. Groove; 33. Support spring; 34. Positioning block. Detailed Implementation
[0022] 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 scope of protection of the present utility model.
[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0024] This application discloses a portable spectrum analyzer for electrical instruments. (Refer to...) Figure 1 and Figure 5 A portable spectrum analyzer for electrical instruments includes a spectrum analyzer body 1. The spectrum analyzer body 1 includes a housing 11. A wiring port body 14 is fixedly connected to the bottom front side of the housing 11. A connecting wire body 15 is inserted into the front side of the wiring port body 14. Through the connection between the connecting wire body 15 and the wiring port body 14, the radio frequency signal output by the device under test is ensured to enter the port through a transmission line such as a coaxial cable or waveguide, and then enter the spectrum analyzer body 1 for processing.
[0025] An anti-disengagement mechanism 3 is provided on one side of the surface of the connector body 14. The anti-disengagement mechanism 3 includes an anti-disengagement cover 31. A groove 32 is provided on one side of the inner cavity of the anti-disengagement cover 31. A support spring 33 is fixedly connected to one side of the inner wall of the groove 32. A positioning block 34 is fixedly connected to one end of the support spring 33. The positioning block 34 is slidably connected to the inside of the groove 32. With the anti-disengagement cover 31, after adjustment, the position can cover the surface of the connector body 15 to block and limit the position of the connector body 15 inserted into the connector body 14. With the support spring 33, when the positioning block 34 is subjected to pressure, it can be compressed and deformed. When the positioning block 34 moves into the arc groove 16, the positioning block 34 is locked into the connector body 15 under the restoration of the deformation of the support spring 33.
[0026] Reference Figure 2 and Figure 3 The top and bottom of the surface of the connecting cable body 15 are provided with arc-shaped grooves 16. The shape of the arc-shaped grooves 16 is the same as that of the positioning block 34, and the inside of the arc-shaped grooves 16 engages with the surface of the positioning block 34. Through the setting of the arc-shaped grooves 16, the contact surfaces of the arc-shaped grooves 16 and the positioning block 34 are both arc-shaped. This setting allows the positioning block 34 to be smoothly inserted into the inside of the connecting cable body 15, thereby fixing the position of the connecting cable body 15 inserted into the wiring port body 14.
[0027] Reference Figure 2 and Figure 3 The surface of the connecting wire body 15 is provided with a slanted groove 17. The slanted groove 17 is set at an angle. Because the slanted groove 17 is set at an angle, after the positioning block 34 contacts the connecting wire body 15, it can be smoothly moved outward under the action of the slanted groove 17, so that the support spring 33 can be smoothly compressed and deformed.
[0028] Reference Figure 2 , Figure 4 and Figure 5 A reset mechanism 2 is provided on the front side of the spectrum analyzer body 1. The reset mechanism 2 includes a baffle 21, which is fixed to the front side of the spectrum analyzer body 1 and is sleeved on the surface of the wiring port body 14. A reset spring 22 is fixedly connected to the front side of the baffle 21. There are multiple reset springs 22. The other end of the reset spring 22 is fixedly connected to a movable seat 24. The baffle 21 provides a stable support for the end of the reset spring 22, preventing the reset spring 22 from becoming unstable during operation. The reset spring 22 can be stretched and deformed during the displacement of the movable seat 24, and can provide a pulling force after the movable seat 24 returns to its original position, which facilitates the reset of the movable seat 24.
[0029] Reference Figure 4 The inner cavity of the movable seat 24 is provided with a rotating groove 23, and a connecting block 25 is slidably connected to the inner cavity of the rotating groove 23. The front side of the connecting block 25 is fixedly connected to the back side of the anti-detachment cover 31. By setting the rotating groove 23, the friction between the connecting block 25 and the movable seat 24 is reduced, so that the connecting block 25 can rotate smoothly in the movable seat 24.
[0030] Reference Figure 4A threaded groove 18 is provided on one side of the surface of the wiring port body 14. The threaded groove 18 is threadedly connected to the anti-detachment cover 31. One end of the anti-detachment cover 31 is located on the surface of the connecting wire body 15, and the other end of the anti-detachment cover 31 is located on the surface of the wiring port body 14. By setting the threaded groove 18, the anti-detachment cover 31 can be threadedly connected to the surface of the wiring port body 14, thereby facilitating the adjustment of the position of the anti-detachment cover 31 to strengthen the stability of the connection between the connecting wire body 15 and the wiring port body 14.
[0031] Reference Figure 1 Protective pads 13 are fixedly connected to the four corners of the surface of the housing 11. A handle 12 is rotatably connected to the surface of the housing 11. The handle 12 is set across the surface of the housing 11. The protective pads 13 protect the four corners of the housing 11 and prevent the four corners of the housing 11 from being damaged. The handle 12 makes it convenient to carry the housing 11.
[0032] Working principle: First, the connecting cable body 15 is inserted into the surface of the wiring port body 14. Then, the anti-disengagement cover 31 is rotated. With the anti-disengagement cover 31 threadedly connected to the wiring port body 14, the anti-disengagement cover 31 moves forward. Here, the rotation of the anti-disengagement cover 31 drives the connecting block 25 to rotate inside the rotating groove 23. The movement of the anti-disengagement cover 31 causes the moving seat 24 to move on the surface of the wiring port body 14. The movement of the moving seat 24 causes the return spring 22 to stretch and deform. At the same time, the movement of the anti-disengagement cover 31 drives the positioning block 34 to move. When the positioning block 34 is engaged with the connecting cable body 14, the anti-disengagement cover 35 moves. After the inclined groove 17 on the surface of the body 15 contacts, the positioning block 34 will move into the groove 32 under force. The movement of the positioning block 34 will cause the support spring 33 to compress and deform until the positioning block 34 moves to the horizontal plane of the connecting wire body 15. When the positioning block 34 moves into the arc groove 16, the support spring 33 will restore its deformation and cause the positioning block 34 to be locked into the arc groove 16, thereby positioning the connecting wire body 15. At the same time, the anti-detachment cover 31 covers the surface of the connecting wire body 15, and once again secures the connecting wire body 15 and the wiring port body 14.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A portable spectrum analyser for use with electrical equipment comprising a spectrum analyser body (1) characterised in that: The spectrum analyzer body (1) includes a housing (11), a wiring port body (14) is fixedly connected to the bottom of the front side of the housing (11), and a connecting wire body (15) is inserted into the front side of the wiring port body (14). An anti-detachment mechanism (3) is provided on one side of the surface of the wiring port body (14). The anti-detachment mechanism (3) includes an anti-detachment cover (31). A groove (32) is provided on one side of the inner cavity of the anti-detachment cover (31). A support spring (33) is fixedly connected to one side of the inner wall of the groove (32). A positioning block (34) is fixedly connected to one end of the support spring (33). The positioning block (34) is slidably connected to the inside of the groove (32).
2. A portable spectrum analyzer for electrical apparatus according to claim 1, characterized in that: The top and bottom of the surface of the connecting line body (15) are provided with arc-shaped grooves (16), the shape of the arc-shaped grooves (16) is the same as the shape of the positioning block (34), and the inside of the arc-shaped grooves (16) is engaged with the surface of the positioning block (34).
3. A portable spectrum analyzer for electrical instruments according to claim 2, characterized in that: The surface of the connecting wire body (15) is provided with a slanted groove (17), and the slanted groove (17) is set at an angle.
4. A portable spectrum analyzer for electrical instruments according to claim 1, characterized in that: A reset mechanism (2) is provided on the front side of the spectrum analyzer body (1). The reset mechanism (2) includes a baffle (21). The baffle (21) is fixed to the front side of the spectrum analyzer body (1) and is sleeved on the surface of the wiring port body (14). A reset spring (22) is fixedly connected to the front side of the baffle (21). There are multiple reset springs (22). The other end of the reset spring (22) is fixedly connected to a movable seat (24).
5. A portable spectrum analyzer for electrical instruments according to claim 4, characterized in that: The inner cavity of the movable seat (24) is provided with a rotating groove (23), and a connecting block (25) is slidably connected to the inner cavity of the rotating groove (23). The front side of the connecting block (25) is fixedly connected to the back side of the anti-detachment cover (31).
6. A portable spectrum analyzer for electrical instruments according to claim 1, characterized in that: A threaded groove (18) is provided on one side of the surface of the wiring port body (14). The threaded groove (18) is threadedly connected to the anti-detachment cover (31). One end of the anti-detachment cover (31) is located on the surface of the connecting wire body (15), while the other end of the anti-detachment cover (31) is located on the surface of the wiring port body (14).
7. A portable spectrum analyzer for electrical instruments according to claim 1, characterized in that: Protective pads (13) are fixedly connected to the four corners of the surface of the housing (11), and a handle (12) is rotatably connected to the surface of the housing (11). The handle (12) is horizontally arranged across the surface of the housing (11).