Positioning base of surface acoustic wave filter

Abstract

The utility model discloses a positioning base of a surface acoustic wave filter, which relates to the technical field of surface acoustic wave filters and comprises a first base and mounting components, a filter body is distributed above the first base, and the mounting components are arranged on two sides of the upper end of the first base. The installation assembly comprises an installation frame, limiting cylinders, limiting rods, reset springs, an installation block and limiting through holes, the limiting cylinders are installed on the two sides of the upper end of the installation frame, the limiting rods are connected into the limiting cylinders, the reset springs are additionally arranged in the limiting cylinders outside the limiting rods, and the installation block is arranged at the lower end of the exterior of the filter body. Limiting through holes are formed in the two sides of the interior of the mounting block, and a butt joint assembly is arranged outside the first base. According to the positioning base for the surface acoustic wave filter, positioning and mounting of the surface acoustic wave filter can be rapidly completed, time and labor are saved in the dismounting process, subsequent use of the filter is facilitated, and meanwhile the overall practicability and use efficiency of the positioning base are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of surface acoustic wave filters, in particular to a positioning base for a surface acoustic wave filter. Background Art

[0002] SAW filters are devices used to filter out noise. Their main working principle is to utilize the piezoelectric properties of piezoelectric materials and use input and output transducers to convert radio wave input signals into mechanical energy. After processing, the mechanical energy is converted back into an electrical signal to filter out unnecessary signals and noise, thereby improving reception quality. To improve the efficiency of SAW filters, a positioning base is required. However, existing positioning bases still have the following deficiencies:

[0003] When the existing positioning base is used, since most positioning bases fix the surface acoustic wave filter with bolts, the disassembly and assembly of the surface acoustic wave filter is time-consuming and labor-intensive, thereby affecting the subsequent use of the surface acoustic wave filter, resulting in reduced practicality and reduced efficiency of the positioning base.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a surface acoustic wave filter positioning base is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a surface acoustic wave filter positioning base to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a surface acoustic wave filter positioning base, comprising a first base and a mounting assembly, a filter body distributed above the first base, mounting assemblies are arranged on both sides of the upper end of the first base, and the mounting assembly includes a mounting frame, a limiting cylinder, a limiting rod, a reset spring, a mounting block and a limiting through-hole, limiting cylinders are installed on both sides of the upper end of the mounting frame, and the limiting rod is connected inside the limiting cylinder, and a reset spring is added to the limiting cylinder outside the limiting rod, a mounting block is provided at the lower end of the outside of the filter body, and limiting through-holes are opened on both sides of the inside of the mounting block, and a docking assembly is provided on the outside of the first base.

[0007] Furthermore, the mounting frame is L-shaped and is fixedly connected to the first base via bolts.

[0008] Furthermore, the limiting rod is embedded in the limiting cylinder, and the limiting rod is elastically connected to the limiting cylinder via a return spring.

[0009] Furthermore, there are two mounting blocks, and the two mounting blocks are symmetrically arranged on both sides of the outside of the filter body with respect to the side center axis of the filter body.

[0010] Furthermore, the docking assembly includes a docking groove, an installation groove, a spring damping rod and a limiting ball. Installation grooves are opened on both sides of the docking groove, and a spring damping rod is installed inside the installation groove, and a limiting ball is added to the front end of the spring damping rod.

[0011] Furthermore, the docking assembly also includes a second base, a docking block and an installation slot. The second base is arranged outside the first base, and a docking block is installed at the right end outside the second base, and installation slots are opened on both sides of the docking block.

[0012] Furthermore, the inner dimensions of the docking groove are adapted to the outer dimensions of the docking block, and the docking block is embedded in the first base through the docking groove.

[0013] Furthermore, the outer dimensions of the limiting ball are adapted to the inner dimensions of the mounting slot, and the limiting ball is connected to the docking block via the mounting slot.

[0014] The utility model provides a surface acoustic wave filter positioning base, which has the following beneficial effects:

[0015] 1. The utility model is provided with an installation component. When the surface acoustic filter positioning base is used, the mounting bracket can be fixedly installed on both sides of the upper end of the first base by fastening bolts, and the limiting cylinder is fixedly installed on the upper end of the mounting bracket with the fastening bolts, and the limiting rod is installed inside the limiting cylinder. At the same time, the limiting rod and the limiting cylinder are elastically connected by the reset spring, and the mounting block is slidably installed inside the mounting bracket, and the mounting block is fixed inside the mounting bracket by the limiting through hole and the limiting rod, thereby quickly completing the positioning installation of the filter body, and the filter can be conveniently disassembled, further improving the convenience of using the positioning base.

[0016] 2. The utility model is provided with a docking assembly, so that when the surface acoustic wave filter positioning base is used, the limiting ball and the installation groove are elastically connected through the spring damping rod, and the docking block added to the outside of the second base is installed into the first base by utilizing the docking groove provided inside the first base. At the same time, after the docking block is installed into the docking groove, the limiting ball is used in conjunction with the installation groove to limit the docking block inside the first base, thereby quickly completing the installation and docking of the first base and the second base, so that multiple filter bodies can be installed in sequence, thereby improving the overall practicality and use efficiency of the positioning base. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a positioning base for a surface acoustic wave filter according to the present invention;

[0018] Figure 2 This is a schematic diagram of the three-dimensional unfolded structure of the mounting assembly of a surface acoustic wave filter positioning base of the utility model;

[0019] Figure 3 The utility model is a schematic diagram of a three-dimensional cross-sectional structure of a docking assembly of a surface acoustic wave filter positioning base.

[0020] In the figure: 1. First base; 2. Filter body; 3. Mounting assembly; 301. Mounting frame; 302. Limiting cylinder; 303. Limiting rod; 304. Return spring; 305. Mounting block; 306. Limiting through hole; 4. Docking assembly; 401. Docking groove; 402. Mounting groove; 403. Spring damping rod; 404. Limiting ball; 405. Second base; 406. Docking block; 407. Mounting through groove. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] like Figures 1 to 3 As shown, a surface acoustic filter positioning base includes a first base 1 and a mounting assembly 3, a filter body 2 is distributed above the first base 1, mounting assemblies 3 are arranged on both sides of the upper end of the first base 1, and the mounting assembly 3 includes a mounting frame 301, a limiting cylinder 302, a limiting rod 303, a return spring 304, a mounting block 305 and a limiting through hole 306, a limiting cylinder 302 is installed on both sides of the upper end of the mounting frame 301, and the limiting cylinder 302 is connected to the limiting rod 303 inside, and a return spring 304 is added to the limiting cylinder 302 outside the limiting rod 303, a mounting block 305 is provided at the lower end of the outside of the filter body 2, and limiting through holes 306 are opened on both sides of the mounting block 305, the mounting frame 301 is "L" shaped, and the mounting frame 301 is fixedly connected to the first base 1 by bolts, the limiting rod 303 is embedded in the limiting cylinder 302, and the limiting rod 303 is elastically connected to the limiting cylinder 302 by the return spring 304, The number of mounting blocks 305 is set to two, and the two mounting blocks 305 are symmetrically arranged on both sides of the outside of the filter body 2 with the side center axis of the filter body 2. The mounting frame 301 is fixedly installed on both sides of the upper end of the first base 1 by fastening bolts, and the limiting cylinder 302 is fixedly installed on the upper end of the mounting frame 301 with the fastening bolts, and the limiting rod 303 is installed into the limiting cylinder 302. At the same time, the limiting rod 303 is elastically connected to the limiting cylinder 302 through the return spring 304, and the internal size of the mounting frame 301 is adapted to the external size of the mounting blocks 305 set on both sides of the outside of the filter body 2, so that the mounting block 305 is slidably installed into the inside of the mounting frame 301, and the limiting through hole 306 is used to cooperate with the limiting rod 303 to limit and fix the mounting block 305 inside the mounting frame 301, thereby quickly completing the positioning and installation of the filter body 2, and the filter can be conveniently disassembled, further improving the convenience of using the positioning base.

[0023] like Figures 1 to 3 As shown, a docking assembly 4 is provided on the outside of the first base 1, and the docking assembly 4 includes a docking slot 401, a mounting slot 402, a spring damping rod 403 and a limiting ball 404. Mounting slots 402 are provided on both sides of the docking slot 401, and a spring damping rod 403 is installed inside the mounting slot 402, and a limiting ball 404 is added to the front end of the spring damping rod 403. The docking assembly 4 also includes a second base 405, a docking block 406 and a mounting slot 407. A second base 405 is provided on the outside of the first base 1, and a docking block 406 is installed on the right end of the outside of the second base 405, and mounting slots 407 are provided on both sides of the inside of the docking block 406. The internal dimensions of the docking slot 401 are adapted to the external dimensions of the docking block 406, and the docking block 406 is embedded in the first base 1 through the docking slot 401, the external dimensions of the limiting ball 404 are adapted to the internal dimensions of the mounting slot 407, and the limiting ball 404 is mounted through the mounting slot 407. The docking block 406 is connected, and the spring damping rod 403 is fixedly installed inside the installation groove 402 by fastening bolts, and the limiting ball 404 is fixedly installed at the front end of the spring damping rod 403 by fastening bolts. The limiting ball 404 is elastically connected to the installation groove 402 through the spring damping rod 403, and the docking groove 401 opened inside the first base 1 is used to install the docking block 406 added to the outside of the second base 405 into the first base 1. At the same time, the internal dimensions of the installation grooves 407 opened on both sides of the docking block 406 are adapted to the external dimensions of the limiting ball 404. After the docking block 406 is installed into the docking groove 401, the limiting ball 404 is used to cooperate with the installation groove 407 to limit the docking block 406 inside the first base 1, thereby quickly completing the installation and docking of the first base 1 and the second base 405, so that multiple filter bodies 2 can be installed in sequence, thereby improving the overall practicality and use efficiency of the positioning base.

[0024] In summary, when using the SAW filter positioning base, first fix the mounting bracket 301 on both sides of the upper end of the first base 1 by fastening bolts, and fix the limiting cylinder 302 on the upper end of the mounting bracket 301 with the fastening bolts, use the return spring 304 to make the limiting rod 303 and the limiting cylinder 302 elastically connected, slide the mounting block 305 into the interior of the mounting bracket 301, and use the limiting through hole 306 to cooperate with the limiting rod 303 to limit and fix the mounting block 305 inside the mounting bracket 301, thereby quickly completing the positioning and installation of the filter body 2, and then, through the spring damping The rod 403 makes the limiting ball 404 elastically connected to the installation groove 402, and the docking block 406 added to the outside of the second base 405 is installed into the first base 1 using the docking groove 401 opened inside the first base 1. At the same time, after the docking block 406 is installed into the docking groove 401, the limiting ball 404 is used to cooperate with the installation groove 407 to limit the docking block 406 inside the first base 1, thereby quickly completing the installation and docking of the first base 1 and the second base 405, so that multiple filter bodies 2 can be installed in sequence, thereby improving the overall practicality and use efficiency of the positioning base.

[0025] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A surface acoustic wave filter positioning base, comprising a first base (1) and a mounting assembly (3), characterized in that: A filter body (2) is distributed above the first base (1); mounting components (3) are provided on both sides of the upper end of the first base (1); and the mounting components (3) include a mounting frame (301), a limiting cylinder (302), a limiting rod (303), a return spring (304), a mounting block (305), and a limiting through hole (306); limiting cylinders (302) are provided on both sides of the upper end of the mounting frame (301); the limiting cylinder (302) is connected to the limiting rod (303) inside the limiting cylinder (302); and a return spring (304) is added inside the limiting cylinder (302) outside the limiting rod (303); a mounting block (305) is provided on the lower end of the outside of the filter body (2); and limiting through holes (306) are provided on both sides of the inside of the mounting block (305); and a docking component (4) is provided on the outside of the first base (1).

2. The surface acoustic wave filter positioning base according to claim 1, characterized in that: The mounting frame (301) is L-shaped, and the mounting frame (301) is fixedly connected to the first base (1) via bolts.

3. The surface acoustic wave filter positioning base according to claim 1, characterized in that: The limiting rod (303) is embedded in the limiting cylinder (302), and the limiting rod (303) is elastically connected to the limiting cylinder (302) via a return spring (304).

4. The surface acoustic wave filter positioning base according to claim 1, characterized in that: The number of the mounting blocks (305) is two, and the two mounting blocks (305) are symmetrically arranged on both sides of the outside of the filter body (2) with respect to the side center axis of the filter body (2).

5. The surface acoustic wave filter positioning base according to claim 1, characterized in that: The docking assembly (4) comprises a docking groove (401), a mounting groove (402), a spring damping rod (403) and a limiting ball (404); the docking groove (401) has mounting grooves (402) on both sides thereof, the mounting groove (402) has a spring damping rod (403) installed therein, and a limiting ball (404) is added to the front end of the spring damping rod (403).

6. The surface acoustic wave filter positioning base according to claim 5, characterized in that: The docking assembly (4) further comprises a second base (405), a docking block (406) and a mounting slot (407), wherein the second base (405) is provided on the outside of the first base (1), and a docking block (406) is installed on the right end of the outside of the second base (405), and mounting slots (407) are provided on both sides of the inside of the docking block (406).

7. The surface acoustic wave filter positioning base according to claim 6, characterized in that: The internal dimensions of the docking groove (401) are adapted to the external dimensions of the docking block (406), and the docking block (406) is embeddedly connected to the first base (1) via the docking groove (401).

8. The surface acoustic wave filter positioning base according to claim 6, characterized in that: The outer dimensions of the limiting ball (404) are adapted to the inner dimensions of the installation slot (407), and the limiting ball (404) is connected to the docking block (406) via the installation slot (407).

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