Mounting jig, antenna structure and countering gun

Abstract

The utility model relates to the technical field of auxiliary assembly tools, and discloses an installation jig, an antenna structure and a counter gun. The mounting jig is used for assisting in fixing a first workpiece and a second workpiece, the first workpiece is provided with a first connecting hole, the second workpiece is provided with a second connecting hole, and the first workpiece and the second workpiece are locked through a screw and a nut. The mounting jig comprises a base and a mounting table, the mounting table is arranged on the base, a containing groove is formed in the mounting table, in the locking process of the first workpiece and the second workpiece, a nut is firstly placed in the containing groove, then the second workpiece is placed above the mounting table, and the first workpiece is placed on the second workpiece; and finally, a screw sequentially penetrates through the first connecting hole and the second connecting hole and is locked with a nut, so that the first workpiece and the second workpiece can be locked and fixed. In the whole locking process, the second workpiece and the nut do not need to be overturned, and the nut does not need to be supported by hands, so that the nut can be prevented from falling off in the overturning process, the assembly steps are simplified, and the assembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary assembly tools, in particular to an installation fixture, an antenna structure and a counter-gun. Background Art

[0002] With the development of civil drones, drones can perform more and more tasks, such as aerial photography and transportation, etc., which are accompanied by a series of privacy and voyeuristic photography problems. In order to deal with the illegal intrusion of drones, a series of anti-drone products have appeared on the market, such as portable anti-drone equipment, integrated drone defense systems, anti-drone guns, etc. These products all have one or more antenna structures, which are used to receive drone signals and emit interference signals, so as to facilitate the identification and attack of drones in operation.

[0003] The antenna structure includes a bracket and a shielding frame, wherein the bracket is connected to the shielding frame to ensure that the antenna receives signals from one direction. The bracket is located below the shielding frame and is fixed to the shielding frame by means of screws and nuts.

[0004] During the assembly of the bracket and the shielding frame, first place the nut in the fixing groove at the bottom of the bracket, then turn the bracket over with the nut, hold the nut with your hand to prevent it from falling, and finally tighten the screws from the top of the shielding frame, so that the screws pass through the shielding frame and the bracket in turn, and then tighten the nuts to complete the assembly between the bracket and the shielding frame.

[0005] However, during the above assembly process, on the one hand, when the bracket and the nut are turned over, the nut is easy to fall off the shielding frame, and on the other hand, the nut needs to be supported by hand when the screw is locked, which limits the operation and increases the difficulty of assembly. Utility Model Content

[0006] The embodiments of the utility model aim to provide a mounting fixture, an antenna structure and a counter-gun, in order to solve the technical problem in the prior art that during the process of locking the bracket and the shielding frame with screws and nuts, the shielding frame and the nuts need to be flipped over and the nuts need to be supported by hands, which causes the nuts to fall off easily and makes assembly difficult.

[0007] In order to solve the above technical problems, the utility model provides a mounting fixture, which is used to assist in fixing a first workpiece and a second workpiece, wherein a first connecting hole is opened on the first workpiece, and a second connecting hole is opened on the second workpiece, and the first workpiece and the second workpiece are locked by screws and nuts;

[0008] The mounting fixture includes a base and a mounting table, the mounting table is arranged on the base, a receiving groove is formed on the mounting table, the nut can be placed in the receiving groove, the second workpiece can be placed on the mounting table, the first workpiece can be placed on the second workpiece, and the screw can pass through the first connecting hole and the second connecting hole in sequence and be locked with the nut.

[0009] Optionally, a positioning groove is formed on a side of the second workpiece facing away from the first workpiece, and the positioning groove is connected to the second connecting hole;

[0010] The height of the receiving groove is smaller than the height of the nut. One end of the nut is received in the receiving groove, and the other end of the nut protrudes out of the receiving groove and is received in the positioning groove.

[0011] Optionally, a mounting groove is provided on the mounting platform, and the receiving groove is provided at the bottom of the mounting groove;

[0012] The second workpiece is at least partially received in the mounting groove, and the upper surface of the second workpiece can be flush with the upper surface of the mounting platform, so that the first workpiece can abut against the upper surface of the mounting platform.

[0013] Optionally, the mounting platform is further provided with an alignment groove, the alignment groove being in communication with the mounting groove;

[0014] An alignment protrusion is provided on one end surface of the second workpiece facing the alignment groove, and the alignment protrusion can be clamped in the alignment groove.

[0015] Optionally, the mounting fixture further includes a support platform, wherein the support platform and the mounting platform are respectively connected to opposite ends of the base, and an upper surface of the support platform is flush with an upper surface of the mounting platform so that the first workpiece can abut against an upper surface of the support platform.

[0016] Optionally, a limiting step is provided on the upper surface of the support platform, and an end surface of the first workpiece facing the limiting step can abut against the limiting step.

[0017] Optionally, the first workpiece has a recessed portion, and an avoidance groove is provided on the base, the avoidance groove can correspond to the position of the recessed portion, and the recessed portion can be accommodated in the avoidance groove.

[0018] The utility model also provides an antenna structure, the antenna structure comprising a shielding frame, a bracket, screws and nuts, the shielding frame and the bracket can be assisted and fixed by any of the above-mentioned mounting fixtures;

[0019] The shielding frame and the bracket are respectively provided with the first connecting hole and the second connecting hole, the nut can be placed in the accommodating groove, and the bracket and the shielding frame can be stacked on the mounting table in sequence, and the screw can pass through the first connecting hole and the second connecting hole in sequence and be locked with the nut.

[0020] Optionally, a positioning hole is provided on the shielding frame, and a positioning protrusion is provided on a surface of one side of the bracket facing the shielding frame, and the positioning protrusion is clamped in the positioning hole.

[0021] The utility model also provides a counter-attack gun, which comprises the above antenna structure.

[0022] Compared with the prior art, in the embodiment of the utility model, during the process of locking and fixing the first workpiece and the second workpiece, the nut is first placed in the receiving groove, the second workpiece is placed on the mounting table, the second connecting hole is connected to the receiving groove, the first workpiece is then placed on the second workpiece, the first connecting hole and the second connecting hole are connected, and finally the screw passes through the first connecting hole and the second connecting hole in sequence and is locked with the nut, thus completing the locking and fixing of the first workpiece and the second workpiece. Since the second workpiece and the nut do not need to be turned over during the whole process, and the nut does not need to be supported by hand, the nut is prevented from falling off the second workpiece during the turning process, which simplifies the assembly steps and reduces the difficulty of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or several embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0024] Figure 1 It is a structural schematic diagram of a mounting fixture provided in one embodiment of the utility model;

[0025] Figure 2 yes Figure 1 A schematic diagram of the matching structure of the first workpiece and the second workpiece through the installation fixture;

[0026] Figure 3 yes Figure 2 A schematic diagram of the structure after the first workpiece and the second workpiece are matched on the mounting table;

[0027] Figure 4 yes Figure 2 A schematic diagram of the matching structure between the second workpiece and the mounting platform;

[0028] Figure 5 yes Figure 2 A schematic diagram of a part of the structure in which the second workpiece is mounted on the mounting table;

[0029] Figure 6 yes Figure 3 A schematic diagram of the structure from another angle;

[0030] Figure 7 yes Figure 3 Schematic diagram of the partial structure in which the first workpiece is placed on the mounting table.

[0031] The reference numerals are as follows:

[0032] 100. Installation fixture; 10. Installation platform; 11. Accommodation groove; 110. Avoidance hole; 12. Installation groove; 13. Alignment groove; 20. Base; 21. First base; 22. Second base; 23. Connecting rod; 24. Avoidance groove; 30. Support platform; 31. Limiting step; 200. Antenna structure; 210. First workpiece; 211. First connecting hole; 212. Recessed portion; 213. Main body; 214. Positioning hole; 220. Second workpiece; 221. Second connecting hole; 222. Positioning groove; 223. Alignment protrusion; 224. Positioning protrusion; 230. Nut; 240. Screw. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the utility model, the utility model is described in more detail in the following in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on another element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0035] Please also read Figure 1 , Figure 2 and Figure 3 , Figure 1 It is a structural schematic diagram of a mounting fixture provided in one embodiment of the utility model; Figure 2 yes Figure 1Schematic diagram of the matching structure of the first workpiece and the second workpiece through the installation fixture, Figure 3 yes Figure 2 Schematic diagram of the structure after the first workpiece and the second workpiece are matched on the mounting table.

[0036] An installation fixture 100 provided in an embodiment of the present invention is used to assist in fixing a first workpiece 210 and a second workpiece 220. A first connection hole 211 is provided on the first workpiece 210, and a second connection hole 221 is provided on the second workpiece 220. The first workpiece 210 and the second workpiece 220 are locked together by screws 240 and nuts 230.

[0037] The mounting fixture 100 includes a mounting table 10 and a base 20. The mounting table 10 is arranged on the base 20. A receiving groove 11 is opened on the mounting table 10. The nut 230 can be placed in the receiving groove 11. The second workpiece 220 can be placed on the mounting table 10. The first workpiece 210 is placed on the second workpiece 220. The screw 240 passes through the first connecting hole 211 and the second connecting hole 221 in sequence and is locked with the nut 230.

[0038] like Figure 1 and Figure 2 As shown, the mounting fixture 100 includes a mounting platform 10 and a base 20. The mounting platform 10 is disposed above the base 20 and is fixedly connected to the base 20. For example, the mounting platform 10 can be fixedly mounted on the base 20 by fasteners such as screws and bolts. In addition, the mounting platform 10 can also be an integrally formed structure with the base 20.

[0039] The mounting fixture 100 is used to assist in fixing the first workpiece 210 and the second workpiece 220. Specifically, the first workpiece 210 can be attached Figure 2 The shielding frame of the antenna structure in the middle, the second workpiece 220 can be attached Figure 2 It is understood that in other embodiments, the first workpiece 210 and the second workpiece 220 are not limited thereto. For example, the first workpiece 210 and the second workpiece 220 may both be plate-shaped structures. For ease of understanding, the first workpiece 210 is a shielding frame of the antenna structure 200, and the second workpiece 220 is a bracket of the antenna structure 200.

[0040] Specifically, the locking and fixing process of the first workpiece 210 and the second workpiece 220 is as follows:

[0041] First, place the nut 230 in the receiving groove 11, place the second workpiece 220 on the mounting table 10, align and connect the second connecting hole 221 with the receiving groove 11, then place the first workpiece 210 on the second workpiece 220, align and connect the first connecting hole 211 with the second connecting hole 221, and finally pass the rod of the screw 240 through the first connecting hole 211 and the second connecting hole 221 in turn and lock them with the nut 230, thereby completing the locking and fixation of the first workpiece 210 and the second workpiece 220.

[0042] In this embodiment, a receiving groove 11 is opened on the upper surface of the mounting table 10, and the nut 230 is pre-installed in the receiving groove 11. Such an arrangement eliminates the need to observe the nut 230 during the locking process, and eliminates the need to flip the second workpiece 220 and the nut 230, and eliminates the need to support the nut 230 by hand, thereby preventing the nut 230 from falling off the second workpiece 220 during the flipping process, thereby simplifying the assembly steps, reducing the difficulty of assembly, and improving installation efficiency and stability.

[0043] In addition, it is understandable that for some second workpieces 220, such as the bracket of the antenna structure, if the installation method in the prior art is adopted, the space for installing the nut 230 is very small, the operation is limited, and it is inconvenient to hold the nut 230 by hand, resulting in great difficulty in operation and installation. However, since the nut 230 can be pre-installed in this embodiment, it is particularly suitable for locking and fixing this type of second workpiece 220.

[0044] It should be noted that, in the present embodiment, placing the second workpiece 220 above the mounting table 10 does not require that the second workpiece 220 must be against the surface of the mounting table 10. For example, when the nut 230 protrudes from the receiving groove 11, the second workpiece 220 may also be placed directly on the nut 230, in which case the nut 230 provides support for the second workpiece 220.

[0045] Optionally, the receiving groove 11 is adapted to the shape of the nut 230. For example, the nut 230 is a hexagonal nut and the receiving groove 11 is a hexagonal groove. After the nut 230 is placed in the receiving groove 11, the receiving groove 11 can limit the axial rotation of the nut 230, ensuring that the nut 230 can always remain stationary during the locking process of the screw 240 and the nut 230, thereby ensuring installation efficiency and stability.

[0046] Optionally, an avoidance hole 110 is opened at the bottom of the accommodating groove 11. During the locking process of the first workpiece 210 and the second workpiece 220, the rod of the screw 240 passes through the first connecting hole 211, the second connecting hole 221 and the nut 230 in sequence, and then can extend into the avoidance hole 110.

[0047] See also Figure 2 and Figure 4 , Figure 4yes Figure 2 Schematic diagram of the matching structure between the second workpiece and the mounting table.

[0048] In one embodiment, a positioning groove 222 is opened on the side of the second workpiece 220 facing away from the first workpiece 210, and the positioning groove 222 is connected to the second connecting hole 221; the height of the accommodating groove 11 is less than the height of the nut 230, one end of the nut 230 is accommodated in the accommodating groove 11, and the other end of the nut 230 protrudes from the accommodating groove 11 and is accommodated in the positioning groove 222.

[0049] Specifically, the positioning groove 222 is a hexagonal groove, and the positioning groove 222 is opened on the side of the second workpiece 220 away from the first workpiece 210. When the second workpiece 220 is mounted on the mounting table 10, the portion of the nut 230 protruding from the receiving groove 11 is aligned with the positioning groove 222 until the other end of the nut 230 is received in the positioning groove 222, so that the second workpiece 220 is placed on the nut 230.

[0050] The purpose of such a setting is that the positioning groove 222 and the nut 230 can help the second workpiece 220 to be aligned and placed, which can improve the installation efficiency of the second workpiece 220 on the one hand, and help improve the installation position accuracy of the second workpiece 220 on the other hand, so as to facilitate the relative position alignment of the second connection hole 221 and the nut 230, and facilitate the subsequent locking of the screw 240 and the nut 230. When the second workpiece 220 is placed on the mounting table 10, the second workpiece 220 is limited to prevent the second workpiece 220 from sliding on the mounting table 10.

[0051] In one embodiment, a mounting groove 12 is opened on the mounting table 10, and the receiving groove 11 is opened at the bottom of the mounting groove 12; the second workpiece 220 is at least partially accommodated in the mounting groove 12, and the upper surface of the second workpiece 220 can be flush with the upper surface of the mounting table 10, so that the first workpiece 210 can be against the upper surface of the mounting table 10.

[0052] like Figure 2 As shown, taking the first workpiece 210 as a shielding frame and the second workpiece 220 as a bracket as an example, the first workpiece 210 is a roughly flat plate-like structure with relatively large size, and the second workpiece 220 is a hollow square frame-like structure with relatively small size, and the plane direction of the second workpiece 220 is perpendicular to the plane direction of the first workpiece 210.

[0053] One end of the mounting table 10 is fixedly connected to the base 20, and the other end of the mounting table 10 is suspended and has a mounting groove 12. When assembling the second workpiece 220, first, the second workpiece 220 is located at one end of the mounting table 10 close to the mounting groove 12, and then the second workpiece 220 is moved horizontally so that the second workpiece 220 gradually moves toward the mounting groove 12, so that the other end of the mounting table 10 passes through the inner side of the second workpiece 220, and finally, the second workpiece 220 is moved vertically so that the second workpiece 220 is placed in the mounting groove 12.

[0054] When the second workpiece 220 is placed on the mounting table 10, the upper surface of the second workpiece 220 is flush with the upper surface of the mounting table 10, so that the lower surface of the first workpiece 210 is respectively against the upper surface of the second workpiece 220 and the upper surface of the mounting table 10. In this way, the second workpiece 220 and the upper surface of the mounting table 10 can jointly support the first workpiece 210, improve the support stability of the first workpiece 210, and ensure that the first workpiece 210 does not loosen or shake after being placed on the second workpiece 220.

[0055] Optionally, the mounting groove 12 is a stepped groove (such as Figure 2 As shown), so as to facilitate mounting the second workpiece 220 onto the mounting table 10.

[0056] Optionally, after the second workpiece 220 is installed in the installation groove 12 , the groove bottom and side walls of the installation groove 12 are respectively abutted against the second workpiece 220 to further enhance the installation stability and reliability of the second workpiece 220 .

[0057] See also Figure 2 and Figure 5 , Figure 5 yes Figure 2 Schematic diagram of the partial structure in which the second workpiece is installed on the mounting table.

[0058] In one embodiment, an alignment groove 13 is further provided on the mounting table 10 , and the alignment groove 13 is connected to the mounting groove 12 ; an alignment protrusion 223 is provided on one end surface of the second workpiece 220 facing the alignment groove 13 , and the alignment protrusion 223 can be clamped in the alignment groove 13 .

[0059] Specifically, the alignment protrusion 223 is disposed on one side of the second workpiece 220 so that the operator can quickly identify the placement direction of the second workpiece 220. The operator can clamp the alignment protrusion 223 in the alignment groove 13 to quickly install the second workpiece 220 on the mounting table 10, thereby improving the installation efficiency.

[0060] See also Figure 2 , Figure 3 and Figure 6 , Figure 6 yes Figure 3Schematic diagram of the structure from another angle.

[0061] In one embodiment, the mounting fixture 100 also includes a support platform 30, and the support platform 30 and the mounting platform 10 are respectively connected to opposite ends of the base 20, and the upper surface of the support platform 30 is flush with the upper surface of the mounting platform 10 so that the first workpiece 210 can be against the upper surface of the support platform 30.

[0062] Specifically, the first workpiece 210 is a roughly L-shaped plate structure, and the length of the first workpiece 210 is relatively long. After the first workpiece 210 is placed above the second workpiece 220, the opposite ends of the first workpiece 210 are respectively against the upper surface of the mounting table 10 and the upper surface of the support table 30. The mounting table 10 and the support table can provide more stable support for the first workpiece 210 to avoid tilting or shaking caused by the length of the first workpiece 210 being too long.

[0063] Optionally, the base 20 includes a first base 21, a second base 22 and a connecting rod 23; the first base 21 and the second base 22 are arranged opposite to each other, the connecting rod 23 is arranged between the first base 21 and the second base 22, and the two ends of the connecting rod 23 are respectively fixedly connected to the top of the first base 21 and the top of the second base 22. For example, the two ends of the connecting rod 23 can be threadedly fixed to the first base 21 and the second base 22, respectively, to facilitate disassembly and assembly.

[0064] In actual application scenarios, the first base 21 and the second base 22 are placed on the ground or a corresponding workbench, the first base 21 and the second base 22 are spaced apart, and the opposite ends of the connecting rod 23 on the side facing the ground are respectively connected to the first base 21 and the second base 22, and the opposite ends of the other side of the connecting rod 23 of the connecting seat are respectively connected to the mounting platform 10 and the support platform 30.

[0065] The first base 21 and the second base 22 have a lifting function, so that there is a lifting gap between the mounting platform 10 and the actual ground, which facilitates the installation of the second workpiece 220. The distance between the mounting platform 10 and the ground is greater than the height of the second workpiece 220 in the vertical direction, so as to avoid the situation where the second workpiece 220 cannot be installed when the height in the vertical direction is too high.

[0066] In one embodiment, the upper surface of the support platform 30 has a limiting step 31 , and the end surface of the first workpiece 210 facing the limiting step 31 can abut against the limiting step 31 .

[0067] Specifically, when the first workpiece 210 is placed on the mounting table 10 and the support table 30, the end face of the first workpiece 210 facing the limiting step 31 abuts against the end face of the limiting step 31, and the limiting step 31 plays a role in preliminary positioning of the first workpiece 210, thereby assisting the operator to quickly determine the placement position of the first workpiece 210, so that the first connecting hole 211 and the second connecting hole 221 are quickly aligned, thereby improving assembly efficiency.

[0068] See also Figure 2 , Figure 3 and Figure 7 , Figure 7 yes Figure 2 Schematic diagram of the partial structure in which the first workpiece is placed on the mounting table.

[0069] In one embodiment, the first workpiece 210 has a recessed portion 212 , and a relief groove 24 is formed on the base 20 . The relief groove 24 can correspond to the position of the recessed portion 212 , and the recessed portion 212 can be received in the relief groove 24 .

[0070] Specifically, the first workpiece 210 includes a recessed portion 212 and a main body 213, the recessed portion 212 and the main body 213 are an integrated structure, the recessed portion 212 is recessed relative to the main body 213, when the first workpiece 210 is placed on the second workpiece 220, the recessed portion 212 is aligned with the avoidance groove 24, and the approximate placement position of the first workpiece 210 is further quickly determined, which helps to quickly align the first connection hole 211 with the second connection hole 221, thereby improving the overall assembly efficiency. In addition, the tilting of the recessed portion 212 when placed on the mounting table 10 can be avoided.

[0071] In addition, the recessed portion 212 is accommodated in the avoidance groove 24 , so as to avoid collision and wear between the recessed portion 212 and the mounting platform 10 when the first workpiece 210 is placed.

[0072] See Review Figure 2 Another embodiment of the present invention provides an antenna structure 200, the antenna structure 200 includes a shielding frame, a bracket, a screw 240 and a nut 230, and the shielding frame and the bracket can be assisted in fixing by the above-mentioned mounting fixture 100;

[0073] The shielding frame and the bracket are respectively provided with a first connecting hole 211 and a second connecting hole 221, the nut 230 can be placed in the accommodating groove 11, and the bracket and the shielding frame can be stacked on the mounting table 10 in sequence, and the screw 240 can pass through the first connecting hole 211 and the second connecting hole 221 in sequence and cooperate with the nut 230.

[0074] It can be understood that the shielding frame corresponds to the first workpiece 210 mentioned above, and the bracket corresponds to the second workpiece 220 mentioned above. The specific installation steps of the antenna structure 200 are as follows: place the nut 230 in the receiving groove 11 of the mounting platform 10, so that the nut 230 partially protrudes outside the receiving groove 11; then align the positioning groove 222 on the bracket with the part of the nut 230 protruding from the receiving groove 11, and accommodate the nut 230 in the positioning groove 222 to complete the cooperation between the nut 230 and the bracket; then place the shielding frame on the mounting platform 10 so that the side surface of the shielding frame facing the bracket abuts against the surface of the mounting platform 10 and the upper surface of the bracket. Note that in the process of placing the shielding frame, align the first connection hole 211 and the second connection hole 221. Finally, the screw 240 is sequentially inserted into the first connection hole 211 and the second connection hole 221 and cooperates with the nut 230 to complete the assembly of the antenna structure 200. During the assembly process, there is no need to flip the bracket and the nut 230 together. The nut 230 is stuck between the bracket and the mounting platform 10, thereby avoiding the step of flipping the bracket and the nut 230 and avoiding the nut 230 from falling during the assembly process, so as to reduce the difficulty of assembly and achieve the effect of quick assembly.

[0075] It is understandable that the antenna structure 200 may also include other components. For example, the antenna structure 200 also includes a conical horn, which is arranged below the shielding frame and fixedly connected to the bracket. For example, the conical horn can be fixedly mounted on the bracket by fasteners such as screws and bolts.

[0076] In one embodiment, a positioning hole 214 is formed on the shielding frame, and a positioning protrusion 224 is formed on a surface of the bracket facing the shielding frame. The positioning protrusion 224 is locked in the positioning hole 214 .

[0077] Specifically, the positioning protrusion 224 protrudes from the bracket, that is, when the shielding frame is placed on the bracket, the positioning protrusion 224 is extended in the direction of the shielding frame; a positioning hole 214 is provided on the shielding frame at a position corresponding to the positioning protrusion 224, and the positioning protrusion 224 is clamped in the positioning hole 214. The purpose of such a setting is that when the shielding frame is placed on the mounting table 10, the shielding frame will abut against the limiting step 31, and the recessed portion 212 on the shielding frame will be accommodated in the avoidance groove 24 to form a preliminary positioning. Then, the positioning protrusion 224 is clamped in the positioning hole 214 to complete the precise positioning, thereby assisting the alignment of the first connection hole 211 and the second connection hole 221, so that the screw 240 can be quickly inserted into the first connection hole 211 and the second connection hole 221 and quickly cooperate with the nut 230. Avoid the situation where the first connection hole 211 and the second connection hole 221 are poorly aligned when the shielding frame is placed on the bracket.

[0078] Another embodiment of the present invention provides a countermeasure gun, which includes the antenna structure 200 mentioned above.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A mounting fixture, characterized in that: The mounting fixture is used to assist in fixing the first workpiece and the second workpiece, the first workpiece is provided with a first connecting hole, the second workpiece is provided with a second connecting hole, and the first workpiece and the second workpiece are locked with screws and nuts; The mounting fixture includes a base and a mounting table, the mounting table is arranged on the base, a receiving groove is formed on the mounting table, the nut can be placed in the receiving groove, the second workpiece can be placed on the mounting table, the first workpiece can be placed on the second workpiece, and the screw can pass through the first connecting hole and the second connecting hole in sequence and be locked with the nut.

2. The installation jig according to claim 1, characterized in that: A positioning groove is formed on a side of the second workpiece facing away from the first workpiece, and the positioning groove is connected to the second connecting hole; The height of the receiving groove is smaller than the height of the nut. One end of the nut is received in the receiving groove, and the other end of the nut protrudes out of the receiving groove and is received in the positioning groove.

3. The installation jig according to claim 1, characterized in that: The mounting platform is provided with a mounting groove, and the receiving groove is provided at the bottom of the mounting groove; The second workpiece is at least partially received in the mounting groove, and the upper surface of the second workpiece can be flush with the upper surface of the mounting platform, so that the first workpiece can abut against the upper surface of the mounting platform.

4. The installation jig according to claim 3, characterized in that: The mounting platform is also provided with an alignment groove, which is communicated with the mounting groove; An alignment protrusion is provided on one end surface of the second workpiece facing the alignment groove, and the alignment protrusion can be clamped in the alignment groove.

5. The installation jig according to claim 3, characterized in that: It also includes a support platform, wherein the support platform and the mounting platform are respectively connected to opposite ends of the base, and the upper surface of the support platform is flush with the upper surface of the mounting platform so that the first workpiece can abut against the upper surface of the support platform.

6. The installation jig according to claim 5, characterized in that: A limiting step is disposed on the upper surface of the support platform, and a side end surface of the first workpiece facing the limiting step can abut against the limiting step.

7. The installation jig according to claim 5, characterized in that: The first workpiece has a recessed portion, and a relief groove is formed on the base. The relief groove can correspond to the position of the recessed portion, and the recessed portion can be accommodated in the relief groove.

8. An antenna structure, characterized in that: The antenna structure includes a shielding frame, a bracket, screws and nuts, and the shielding frame and the bracket can be assisted in fixing by the mounting fixture according to any one of claims 1 to 7; The shielding frame and the bracket are respectively provided with the first connecting hole and the second connecting hole, the nut can be placed in the accommodating groove, and the bracket and the shielding frame can be stacked on the mounting table in sequence, and the screw can pass through the first connecting hole and the second connecting hole in sequence and be locked with the nut.

9. The antenna structure according to claim 8, characterized in that: A positioning hole is provided on the shielding frame, and a positioning protrusion is provided on a surface of one side of the bracket facing the shielding frame, and the positioning protrusion is clamped in the positioning hole.

10. A counter-attack gun, characterized in that: The countermeasure gun comprises the antenna structure as claimed in claim 9.

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