Piezoelectric integrated vibration sensor with counterweight for easy installation

Abstract

The utility model relates to a piezoelectric integrated vibration sensor with counterweight convenient to install belongs to sensor technical field, the piezoelectric integrated vibration sensor with counterweight convenient to install, include: the shell, the surface of shell is equipped with two side holes, the inner bottom wall of shell is fixedly connected with middle part rod, the upper end of middle part rod is penetrated to the top of shell, and two side holes are symmetrically distributed along the central axis of middle part rod, the counterweight installation mechanism is installed in the inside of shell, and the surface of counterweight installation mechanism extends to the outside of shell, the installation of counterweight body is positioned to quick plug, when maintaining installation operation, through the top board drive external ring and go up, make the lower extreme of external ring be located in the top height of side hole inner top wall, can install the operation of counterweight body from the side of shell, improved the convenience of installation counterweight body, will influence the convenience of replacement installation.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a piezoelectric integrated vibration sensor with a counterweight block that is easy to install. Background Technology

[0002] The counterweight, also called the mass block, is the core component of the sensor that senses acceleration. When the object being measured vibrates, the counterweight generates a force proportional to the acceleration due to inertia, and transmits this force to the piezoelectric element. Piezoelectric materials, such as lead zirconate titanate ceramics, generate an electric charge signal after being subjected to force. The amount of charge is proportional to the applied force, thereby converting mechanical vibration into an electrical signal.

[0003] A search of existing Chinese patent technology reveals a "piezoelectric vibration sensor" with publication number "CN212539400U". This device enables the sensor to form an integrated structure, reducing its size, simplifying the manufacturing process, and lowering manufacturing costs. It is also flexible in use, broadening its application range. However, the installation steps for the counterweight of this device are relatively complicated, and the vertical step-by-step installation operation is inconvenient, which will affect the ease of replacement and installation. Utility Model Content

[0004] Therefore, to address the issue of complex and inconvenient counterweight installation steps that affect the ease of replacement and installation, a piezoelectric integrated vibration sensor with an easily installable counterweight is provided. The sensor includes: a housing with two side holes on its surface; a central rod fixedly connected to the inner bottom wall of the housing, the upper end of which extends through to the top of the housing; and two side holes symmetrically distributed along the central axis of the central rod. A counterweight installation mechanism is installed inside the housing, with its surface extending to the outside of the housing. The counterweight installation mechanism includes a guide positioning component installed inside the housing, its surface extending to the outside of the housing. An assembly assembly is installed inside the guide positioning component, and an outer ring is fixedly connected to its surface. The outer ring fits onto the surface of the housing, with its lower end extending below the inner top wall of the side holes.

[0005] In one embodiment, the guiding and positioning assembly includes a top plate disposed on the upper end of the housing and a side guide block fixedly connected to the inner wall of the housing. Two guide rods are fixedly connected to the lower end of the top plate, and the lower ends of the guide rods extend into the interior of the housing. A piezoelectric ceramic is disposed below the top plate, and the piezoelectric ceramic is located between the two guide rods.

[0006] In one embodiment, the assembly includes two counterweight blocks, each with a circular hole on its opposite side. A preload spring is provided at the upper end of each counterweight block and is fixedly connected to the lower end of the top plate. The two circular holes are interconnected, and fastening bolts are provided on the inner walls of the circular holes.

[0007] In one embodiment, a guide slide is provided at the upper end of the side guide block, and the surface of the guide rod is slidably connected to the inner wall of the guide slide.

[0008] In one embodiment, the surface of the piezoelectric ceramic is provided with a side sliding groove, and the inner wall of the side sliding groove is slidably connected to the surface of the side guide block.

[0009] In one embodiment, the end of the counterweight block is provided with a guide groove, and the inner wall of the guide groove is slidably connected to the surface of the adjacent guide positioning component.

[0010] In one embodiment, the counterweight block has a countersunk hole on its surface near the outer shell, and the countersunk hole is connected to the round hole.

[0011] Beneficial effects

[0012] The aforementioned piezoelectric integrated vibration sensor with easy-to-install counterweights, through its counterweight mounting mechanism, allows for quick insertion and positioning of the counterweight. During use, the top plate moves the outer ring upwards, positioning the lower end of the outer ring above the top wall of the side hole, allowing the counterweight to be installed from the side of the housing. This improves the ease of installing the counterweight and enhances the ease of replacement.

[0013] By setting up assembly and merging components, the device can be disassembled and assembled under the action of the assembly and merging components. When installation is required, the device can be installed separately from both sides of the outer shell via the tea break. After being located inside the outer shell, the two counterweight blocks inside the outer shell are combined and positioned by the set fastening bolts. The side holes are sealed with the outer ring, so that the counterweight blocks are not easy to loosen after assembly and maintain the effect of convenient installation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded structural diagram of the counterweight installation mechanism of this utility model;

[0017] Figure 3 This is an exploded view of the guide and positioning component of this utility model;

[0018] Figure 4 This is an exploded view of the assembly and merging components of this utility model.

[0019] Figure label:

[0020] 1. Outer shell; 11. Side hole; 2. Central rod; 3. Counterweight mounting mechanism; 31. Guide positioning assembly; 311. Top plate; 312. Guide rod; 313. Piezoelectric ceramic; 314. Side guide block; 315. Guide slide; 316. Side slide groove; 32. Assembly and merging assembly; 321. Counterweight body; 322. Preload spring; 323. Round hole; 324. Countersunk hole; 325. Fastening bolt; 326. Guide groove; 33. Outer ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0026] The following is combined Figures 1-4 This invention describes a piezoelectric integrated vibration sensor with a counterweight block that is easy to install.

[0027] In one embodiment, a piezoelectric integrated vibration sensor with an easy-to-install counterweight includes: a housing 1, with two side holes 11 on the surface of the housing 1, a central rod 2 fixedly connected to the inner bottom wall of the housing 1, the upper end of the central rod 2 extending through to the top of the housing 1, and the two side holes 11 symmetrically distributed along the central axis of the central rod 2; and a counterweight mounting mechanism 3, which is installed inside the housing 1 and extends to the outside of the housing 1.

[0028] The counterweight mounting mechanism 3 includes a guide positioning component 31 installed inside the outer shell 1. The surface of the guide positioning component 31 extends to the outside of the outer shell 1. An assembly and merging component 32 is installed inside the guide positioning component 31. An outer ring 33 is fixedly connected to the surface of the guide positioning component 31. The outer ring 33 is fitted onto the surface of the outer shell 1. The lower end of the outer ring 33 extends to the bottom of the inner top wall of the side hole 11.

[0029] like Figure 1 , Figure 2 and Figure 3As shown, the guide positioning assembly 31 includes a top plate 311 disposed on the upper end of the housing 1 and a side guide block 314 fixedly connected to the inner wall of the housing 1. Two guide rods 312 are fixedly connected to the lower end of the top plate 311. The lower ends of the guide rods 312 extend into the interior of the housing 1. A piezoelectric ceramic 313 is disposed below the top plate 311 and is located between the two guide rods 312. A guide slide 315 is provided on the upper end of the side guide block 314. The surface of the guide rods 312 is slidably connected to the inner wall of the guide slide 315. A side groove 316 is provided on the surface of the piezoelectric ceramic 313. The inner wall of the side groove 316 is slidably connected to the surface of the side guide block 314.

[0030] In this embodiment, the side guide block 314, in conjunction with the side slide groove 316, provides good guidance for the piezoelectric ceramic 313 and limits its movement range. Meanwhile, the two guide rods 312 at the lower end of the top plate 311 work in conjunction with the guide slide 315 at the upper end of the side guide block 314 to provide auxiliary guidance. The top plate 311 can drive the pre-tightening spring 322 to move upward. The nut at the upper end of the top plate 311 is threaded to the surface of the middle rod 2 near the upper end, which limits the position of the top plate 311. When the counterweight block 321 needs to be installed, the device only needs to move the top plate 311 to move the outer ring 33 upward, so that the lower end of the outer ring 33 is above the height of the inner top wall of the side hole 11, which improves the convenience of installing the counterweight block 321.

[0031] like Figure 1 , Figure 2 and Figure 4 As shown, the assembly and merging component 32 includes two counterweight blocks 321. Circular holes 323 are provided on opposite sides of the two counterweight blocks 321. A pre-tightening spring 322 is provided at the upper end of the counterweight block 321. The pre-tightening spring 322 is fixedly connected to the lower end of the top plate 311. The two circular holes 323 are interconnected. Fastening bolts 325 are provided on the inner wall of the circular holes 323. A guide groove 326 is provided at the end of the counterweight block 321. The inner wall of the guide groove 326 is slidably connected to the surface of the adjacent guide positioning component 31. A countersunk hole 324 is provided on the surface of the counterweight block 321 near the outer shell 1. The countersunk hole 324 is connected to the circular hole 323.

[0032] In this embodiment, during use, the counterweight 321 is inserted into the interior of the outer shell 1 through the side hole 11, and the fastening bolts 325 of the two counterweights 321 can form a relatively tight connection. The two counterweights 321 are combined and fitted on the smooth surface of the middle rod 2, and are limited by the guide groove 326 and the side guide block 314. The side hole 11 is sealed by the outer ring 33, so that the counterweights 321 will not easily loosen after assembly.

[0033] Working principle: The side guide block 314, in conjunction with the side slide groove 316, provides good guidance for the piezoelectric ceramic 313, limiting its movement range. The two guide rods 312 at the lower end of the top plate 311 cooperate with the guide slide 315 at the upper end of the side guide block 314. The top plate 311 drives the preload spring 322 to move upward. The nut located at the upper end of the top plate 311 is threaded to the surface of the middle rod 2 near the upper end, limiting the position of the top plate 311. When the counterweight block 321 needs to be installed, the top plate 311 drives the outer ring 33. The outer ring 33 is moved upwards, with its lower end positioned above the top wall of the side hole 11. The counterweight 321 is inserted into the interior of the outer casing 1 along the side hole 11. The two counterweights 321 are fastened with bolts 325 to form a relatively tight connection. The two counterweights 321 are fitted onto the smooth surface of the middle rod 2 and are matched with the guide slot 326 and the side guide block 314 to form a limit. The outer ring 33 seals the side hole 11. After the counterweights 321 are assembled, they are not easy to loosen, and the installation operation is completed, which improves the convenience of installing the counterweights 321.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A piezoelectric integrated vibration sensor with an easy-to-install counterweight, characterized in that, include: The outer shell (1) has two side holes (11) on its surface. A central rod (2) is fixedly connected to the inner bottom wall of the outer shell (1). The upper end of the central rod (2) extends through to the top of the outer shell (1). The two side holes (11) are symmetrically distributed along the central axis of the central rod (2). A counterweight mounting mechanism (3) is installed inside the outer shell (1), and the surface of the counterweight mounting mechanism (3) extends to the outside of the outer shell (1); The counterweight mounting mechanism (3) includes a guide positioning component (31) installed inside the outer shell (1). The surface of the guide positioning component (31) extends to the outside of the outer shell (1). An assembly and merging component (32) is installed inside the guide positioning component (31). An outer ring (33) is fixedly connected to the surface of the guide positioning component (31). The outer ring (33) is fitted onto the surface of the outer shell (1). The lower end of the outer ring (33) extends to the bottom of the inner top wall of the side hole (11).

2. The piezoelectric integrated vibration sensor with an easily installable counterweight as described in claim 1, characterized in that, The guide positioning assembly (31) includes a top plate (311) disposed on the upper end of the housing (1) and a side guide block (314) fixedly connected to the inner wall of the housing (1). Two guide rods (312) are fixedly connected to the lower end of the top plate (311). The lower end of the guide rods (312) extends into the interior of the housing (1). A piezoelectric ceramic (313) is disposed below the top plate (311) and the piezoelectric ceramic (313) is located between the two guide rods (312).

3. The piezoelectric integrated vibration sensor with an easily installable counterweight as described in claim 2, characterized in that, The assembly and merging component (32) includes two counterweight blocks (321), each of which has a circular hole (323) on its opposite side. A pre-tightening spring (322) is provided at the upper end of each counterweight block (321), and the pre-tightening spring (322) is fixedly connected to the lower end of the top plate (311). The two circular holes (323) are interconnected, and fastening bolts (325) are provided on the inner wall of each circular hole (323).

4. The piezoelectric integrated vibration sensor with an easily installable counterweight as described in claim 2, characterized in that, The upper end of the side guide block (314) is provided with a guide slide (315), and the surface of the guide rod (312) is slidably connected to the inner wall of the guide slide (315).

5. The piezoelectric integrated vibration sensor with an easily installable counterweight as described in claim 4, characterized in that, The surface of the piezoelectric ceramic (313) is provided with a side sliding groove (316), and the inner wall of the side sliding groove (316) is slidably connected to the surface of the side guide block (314).

6. The piezoelectric integrated vibration sensor with an easily installable counterweight as described in claim 3, characterized in that, The counterweight block (321) has a guide groove (326) at its end, and the inner wall of the guide groove (326) is slidably connected to the surface of the adjacent guide positioning component (31).

7. The piezoelectric integrated vibration sensor with an easily installable counterweight as described in claim 6, characterized in that, The counterweight block (321) has a countersunk hole (324) on its surface near the outer shell (1), and the countersunk hole (324) is connected to the round hole (323).

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