Pressure testing equipment

Abstract

The utility model discloses pressure testing equipment, which comprises a base provided with a testing part for placing a piece to be tested; the adjusting assembly comprises an adjusting screw rod and a nut seat, the nut seat is fixedly connected to the base, and the adjusting screw rod is in threaded connection with the nut seat; the pressure spring is arranged below the adjusting screw rod; the pressing block is arranged below the pressure spring; and the test piece is connected with the pressing block and is used for testing the magnitude of the pressure borne by the to-be-tested piece. Through a setting mode of thread feeding control, free adjustment of downward pressure can be realized, debugging and maintenance are simple and efficient, manual adjustment design is adopted, processing is simple, cost is low, a pressure value of a pressing block to a to-be-tested piece is tested through a test piece, so that the pressure borne by the to-be-tested piece is accurately adjusted, and the test efficiency is improved. Therefore, the pressure which can be borne by the to-be-tested piece and the test data under each pressure value can be tested.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a pressure testing equipment. Background Art

[0002] In acoustic testing equipment, the force sensor is a key standard component in the testing equipment. Its positioning, fixing, and adjustment methods must be accurate and reliable to ensure the stability of the pressure data output of the product in the acoustic testing equipment and the consistency of the data output of multiple acoustic testing equipment.

[0003] In recent years, the appearance and structure of acoustic products have become more diverse, and some products have tended to be miniaturized. In order to achieve a reasonable test range without damaging the product, the external pressure it can withstand during the test and the test data at various pressure values ​​must be reflected by a mechanism to determine the pressure range and accurately control the size of the force, which is of great help to subsequent installation, commissioning and maintenance. Utility Model Content

[0004] The utility model provides a pressure testing device, aiming to solve at least one of the technical problems existing in the prior art.

[0005] The technical solution of the utility model relates to a pressure testing device, comprising:

[0006] The base is provided with a test portion for placing the piece to be tested;

[0007] An adjusting assembly, comprising an adjusting screw and a nut seat, wherein the nut seat is fixedly connected to the base, and the adjusting screw is threadedly connected to the nut seat;

[0008] A pressure spring is provided below the adjusting screw;

[0009] A pressure block is provided below the pressure spring;

[0010] A test piece is connected to the pressure block and is used to test the pressure applied to the test piece.

[0011] According to some embodiments of the present invention, a sleeve portion is provided on the nut seat, and a plurality of threaded holes are provided on the side wall of the sleeve portion. The threaded holes are threadedly connected with fixing bolts, and the fixing bolts are used to abut against the side wall of the adjusting screw to lock the adjusting screw.

[0012] According to some embodiments of the present invention, the nut seat is detachably connected to the base via bolts.

[0013] According to some embodiments of the present invention, the test piece is configured as a force sensor, the pressure block is disposed below the force sensor, and the lower end of the pressure spring abuts against the top of the force sensor.

[0014] According to some embodiments of the present invention, a fixing seat is further included, the fixing seat is movably connected to the base, and the force sensor is connected to the fixing seat.

[0015] According to some embodiments of the present invention, a plurality of guide screws are provided on the fixing seat, and the middle portions of the guide screws are movably inserted into the base.

[0016] According to some embodiments of the present invention, a limiting step is further provided on the base, and the limiting step is used to limit the downward displacement of the fixing seat.

[0017] According to some embodiments of the present invention, a spring washer is further included, and the spring washer is arranged between the pressure spring and the adjusting screw.

[0018] The beneficial effects of the utility model are as follows:

[0019] 1. Through the setting mode of thread feed control, the downward pressure can be freely adjusted, and the debugging and maintenance are simple and efficient. In addition, the manual adjustment design is adopted, which is simple to process and low in cost. At the same time, the pressure value of the pressure block on the test piece is tested through the test piece, so as to accurately adjust the pressure size of the test piece to test the pressure that the test piece can withstand and the test data under various pressure values. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall schematic diagram of a pressure testing device according to an embodiment of the present utility model;

[0021] Figure 2 It is a cross-sectional view of a pressure testing device according to an embodiment of the present invention.

[0022] Figure Number:

[0023] Base 100, testing portion 110, limiting step 120;

[0024] Adjustment assembly 200, adjustment screw 210, nut seat 220, sleeve portion 221, fastening bolt 230;

[0025] Compression spring 300;

[0026] Briquetting 400;

[0027] Force sensor 500, fixing base 510, guide screw 520;

[0028] Spring washer 600;

[0029] 700 pieces under test. DETAILED DESCRIPTION

[0030] The following content will describe several embodiments of the present invention, including embodiments corresponding to the accompanying drawings. It can be understood that the accompanying drawings are used to assist in understanding the technical features and technical solutions of the present invention, and should not be understood as limiting the scope of protection of the present invention.

[0031] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict.

[0032] It should be noted that, unless otherwise clearly defined, when a feature is referred to as "fixed", "connected", "installed" or "set" on another feature, it can be directly "fixed", "connected", "installed" or "set" on the other feature, or it can be indirectly "fixed", "connected", "installed" or "set" on the other feature. The words "fixed", "connected", "installed" or "set" should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meaning of the above words in this utility model in combination with the specific content of the technical solution.

[0033] It should be noted that the descriptions of the directions or positional relationships indicated by up, down, left, right, top, bottom, front, back, inside, and outside used in the present invention are based on the directions or positional relationships in the drawings or embodiments, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it cannot be understood as a limitation on the present invention.

[0034] It should be noted that the term "and / or" used in the present invention includes any combination of one or more related listed items, "above", "below", "within", etc. are understood to include the number itself.

[0035] It should be noted that if the first and second are described in this utility model, they are only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] It should be noted that, unless otherwise expressly defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments and are not intended to limit the present invention.

[0037] Reference Figure 1 and Figure 2 The technical solution of the present utility model relates to a pressure testing device, including a base 100, the base 100 includes a bottom plate and an upper mounting plate, the upper mounting plate is arranged above the bottom plate, and a testing portion 110 is provided on the bottom plate for placing the workpiece to be tested 700; an adjusting assembly 200, including an adjusting screw 210 and a nut seat 220, the nut seat 220 is fixedly connected to the upper mounting plate of the base 100, and the adjusting screw 210 is threadedly connected to the nut seat 220; a pressure spring 300, which is arranged below the adjusting screw 210; a pressure block 400, which is arranged below the pressure spring 300; a test piece, connected to the pressure block 400, and the test piece is used to test the pressure applied to the workpiece to be tested 700.

[0038] During the test, the workpiece 700 is placed in the test section 110, and the lower side of the pressure block 400 is brought into contact with the workpiece 700. The adjusting screw 210 is rotated to move it downward. The pressure spring 300 is deformed by the pressure and applies the pressure to the pressure block 400. The pressure block 400 then generates corresponding pressure on the workpiece 700 to test other data performances of the workpiece 700. During the process, the pressure data of the pressure block 400 and the workpiece 700 are detected and fed back by the test piece, thereby accurately adjusting the pressure value.

[0039] The application of the above-mentioned pressure testing equipment has at least the following beneficial effects: through the setting method of the thread feed control, the downward pressure can be freely adjusted, the debugging and maintenance are simple and efficient, and the manual adjustment design is adopted, the processing is simple and the cost is low. At the same time, the pressure value of the pressure block 400 on the workpiece to be tested 700 is tested through the test piece, so as to accurately adjust the pressure size of the workpiece to be tested 700, and test the pressure that the workpiece to be tested 700 can withstand and the test data under various pressure values.

[0040] According to some embodiments of the present invention, a sleeve portion 221 is provided on the nut seat 220, and a plurality of threaded holes are provided on the side wall of the sleeve portion 221. A fixing bolt 230 is threadedly connected to the threaded hole. The fixing bolt 230 is used to abut against the side wall of the adjusting screw 210 to lock the adjusting screw 210. After the adjusting screw 210 is locked by the fixing bolt 230, the corresponding deformation amount of the lower pressure spring 300 can be maintained unchanged, so that the pressure value of the test piece 700 can be kept constant.

[0041] According to some embodiments of the present invention, the nut seat 220 is detachably connected to the base 100 by bolts, and the nut seat 220 is connected to the upper mounting plate of the base 100 by bolts, which facilitates the disassembly, assembly and replacement of the nut seat 220.

[0042] According to some embodiments of the present invention, the test piece is set as a force sensor 500, the pressure block 400 is set below the force sensor 500, and the lower end of the pressure spring 300 is against the upper part of the force sensor 500. During the test, the pressure on the pressure spring 300 will directly act on the force sensor 500, and the value of the spring force will be fed back in real time, thereby controlling the compression amount of the pressure spring 300 by controlling the pressing depth of the adjusting screw 210. It also includes a fixing seat 510, which is movably connected to the base 100, and the force sensor The force sensor 500 is connected to the fixing base 510. The fixing base 510 is provided with a plurality of guide screws 520. The middle part of the guide screws 520 is movably passed through the base 100. The base 100 is also provided with a limit step 120. The limit step 120 is used to limit the downward displacement of the fixing base 510. The force sensor 500 and the pressure block 400 can be lifted upward through the fixing base 510 to remove and place the workpiece to be tested 700. At the same time, the limit step 120 can limit the fixing base 510 from continuing to move downward with the force sensor 500 to avoid damaging the workpiece to be tested.

[0043] According to some embodiments of the present invention, a spring washer 600 is further included. The spring washer 600 is disposed between the pressure spring 300 and the adjusting screw 210 .

[0044] It should be noted that in this specification, terms such as "one embodiment", "some embodiments", "basic embodiment", "extended embodiment" may be used to describe several embodiments of the present utility model. The specific features, structures, materials or characteristics in several embodiments may be combined in accordance with the principles and purposes of the present utility model.

[0045] Although some embodiments of the present invention have been shown and described in this specification, the present invention should not be limited to the above embodiments. As long as the technical effects of the present invention are achieved by the same or equivalent means, any changes, modifications, equivalent substitutions and equivalent variations to these embodiments within the spirit and principles of the present disclosure and without departing from the principles and purpose of the present invention should be included in the scope of protection of the present disclosure and should be deemed to fall within the scope of protection of the present invention.

Claims

1. A pressure testing device, characterized in that: include: The base is provided with a test portion for placing the piece to be tested; An adjusting assembly, comprising an adjusting screw and a nut seat, wherein the nut seat is fixedly connected to the base, and the adjusting screw is threadedly connected to the nut seat; A pressure spring is provided below the adjusting screw; A pressure block is provided below the pressure spring; A test piece is connected to the pressure block and is used to test the pressure applied to the test piece.

2. A pressure testing device according to claim 1, characterized in that: The nut seat is provided with a sleeve portion, and a plurality of threaded holes are provided on the side wall of the sleeve portion. The threaded holes are threadedly connected with fixing bolts, and the fixing bolts are used to abut against the side wall of the adjusting screw to lock the adjusting screw.

3. A pressure testing device according to claim 2, characterized in that: The nut seat is detachably connected to the base via bolts.

4. The pressure testing device according to claim 1, characterized in that: The test piece is configured as a force sensor, the pressure block is disposed below the force sensor, and the lower end of the pressure spring abuts against the upper portion of the force sensor.

5. A pressure testing device according to claim 4, characterized in that: It also includes a fixing seat, which is movably connected to the base, and the force sensor is connected to the fixing seat.

6. The pressure testing device according to claim 5, characterized in that: The fixing seat is provided with a plurality of guide screws, and the middle parts of the guide screws are movably inserted into the base.

7. The pressure testing device according to claim 6, characterized in that: The base is further provided with a limiting step, and the limiting step is used to limit the downward displacement of the fixing seat.

8. The pressure testing device according to claim 1, characterized in that: It also includes a spring washer, which is arranged between the pressure spring and the adjusting screw.

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