Wood moisture tester

Abstract

The utility model provides a wood moisture tester. The wood moisture tester comprises a cap, a calibration circuit board assembly, a pressing plate, a magnet I, a magnet II, a fixing block, a lower cover assembly and an upper cover assembly, a first magnet mounting hole is formed in the pressing plate, and a first magnet is fixed in the first magnet mounting hole; a first positioning hole and a second positioning hole are formed in the end face of the calibration circuit board assembly, a first positioning column and a second positioning column are arranged in the cap, and the calibration circuit board assembly is fixed to the cap. A third positioning hole and a fourth positioning hole are formed in the end face of the pressing plate, and the cap is fixed to the pressing plate. The fixed connection is realized through self-tapping screws; a second magnet mounting hole is formed in the fixing block, and a second magnet is fixed in the second magnet mounting hole; the lower cover assembly and the upper cover assembly are symmetrically arranged, a first groove and a second groove are horizontally formed in the top end and the bottom end in the upper cover assembly, the two fixing blocks are fixed to the upper cover assembly, the lower cover assembly and the upper cover assembly are spliced to form a shell, the cap is detachably connected with the two ends of the shell, and the magnetic pole of the outward end of the first magnet in the cap is opposite to the magnetic pole of the end, facing the outside of the shell, of the second magnet.

Description

Technical Field

[0001] The utility model relates to the technical field of moisture testers, and mainly relates to a wood moisture tester. Background Art

[0002] Wood moisture testers are widely used in the measurement field and involve large, medium and small manufacturing industries. Generally, the cap of a wood moisture tester is usually placed randomly after being removed, which is extremely easy to be lost during use, making the probe lose protection and easy to break. The cap of a general wood moisture tester is fixedly connected to the shell slot through a buckle. Due to the injection molding of the shell, it is extremely easy to cause inconsistent looseness of the cap buckle and the shell slot in batch production. There are welding contact studs on the calibration circuit board of the cap of a general wood moisture tester. There are many processes during production, which waste costs and are easy to cause inconsistent heights of the contact studs. Content of the Utility Model

[0003] In order to solve the above problems existing in the prior art, the utility model provides a wood moisture tester.

[0004] The technical solution of the utility model is as follows: A wood moisture tester, characterized in that it includes a cap, a calibration circuit board assembly, a pressing plate, a magnet one, a magnet two, a fixing block, a lower cover assembly, and an upper cover assembly;

[0005] A magnet mounting hole one is opened in the pressing plate, and the magnet one is fixed in the magnet mounting hole one; positioning holes one and two are opened on the end face of the calibration circuit board assembly, positioning posts one and two are arranged in the cap, and the calibration circuit board assembly is fixed to the cap through positioning hole one and positioning post one and positioning hole two and positioning post two; positioning holes three and four are opened on the end face of the pressing plate, and the cap is fixed to the pressing plate through positioning post one, positioning hole three, positioning hole four, and positioning post two; the fixing connection of each positioning hole and positioning post is completed through self-tapping screws;

[0006] A magnet mounting hole two is opened in the fixing block, and the magnet two is fixed in the magnet mounting hole two; the lower cover assembly and the upper cover assembly are symmetrically arranged, and grooves one and two are horizontally opened at the top and bottom in the upper cover assembly. The two fixing blocks are respectively inserted into grooves one and two at both ends of the upper cover assembly and fixed to the upper cover assembly. The lower cover assembly and the upper cover assembly are spliced to form a shell. The cap is detachably connected to both ends of the shell, and the outer end of the magnet one in the cap has the opposite magnetic pole to the outer end of the magnet two facing the outside of the shell.

[0007] Preferably, the cap and the pressing plate are both fixed to the calibration circuit board assembly through self-tapping screws one, and the cap and the pressing plate are also fixedly connected through self-tapping screws one; the cap, the calibration circuit board assembly, and the pressing plate are spliced to form a cap body.

[0008] Preferably, a first guiding groove and a second guiding groove are formed outside the lower cover assembly, and a positioning rib is formed inside the cap. The cap is connected to the housing by fitting the positioning rib with the first guiding groove or the second guiding groove.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] The present utility model is a wood moisture tester. When using the moisture tester, after removing the cap from the housing (front end), the cap can be adsorbed on the housing (rear end) by the principle of attracting between opposite poles of magnets, which can effectively ensure the consistency of the disassembly feel of the cap; the contact studs on the calibration circuit board are cancelled and replaced with copper cladding, reducing the process and saving costs. When the moisture tester needs to be calibrated, the probe is directly aligned with the corresponding calibration holes on the cap. Description of the Drawings

[0011] Figure 1 is an exploded view of the moisture tester of the present utility model;

[0012] Figure 2 is a schematic diagram of Part 1 of the embodiment of the present utility model;

[0013] Figure 3 is a schematic diagram of Part 2 of the embodiment of the present utility model;

[0014] Figure 4 is a schematic diagram of Part 3 of the embodiment of the present utility model;

[0015] Figure 5 is a schematic diagram of Part 4 of the embodiment of the present utility model;

[0016] Figure 6 is a schematic diagram of Part 5 of the embodiment of the present utility model;

[0017] Figure 7 is a schematic diagram of the first usage state of the present utility model;

[0018] Figure 8 is a schematic diagram of the storage state of the present utility model;

[0019] Figure 9 is a schematic diagram of the second usage state of the present utility model.

[0020] The reference numerals in the drawings are shown as:

[0021] 1 - Cap; 1-1 First calibration hole; 1-2 Second calibration hole; 1-3 First positioning post; 1-4 Second positioning post; 1-5 Positioning rib; 2 - Calibration circuit board assembly; 2-1 First calibration point; 2-2 Second calibration point; 2-3 First positioning hole; 2-4 Second positioning hole; 3 - Pressure plate; 3-1 First magnet mounting hole; 3-2 Third positioning hole; 3-3 Fourth positioning hole; 4 - First magnet; 5 - Self-tapping screw; 6 - Second magnet; 7 - Fixed block; 7-1 Second magnet mounting hole; 8 - Lower cover assembly; 8-1 First guide groove; 8-2 Second guide groove; 9 - Upper cover assembly; 9-1 First groove; 9-2 Second groove; 9-3 Probe tip. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-9 , the present invention provides the following technical solutions: 1. A wood moisture tester, characterized in that it includes a cap 1, a calibration circuit board assembly 2, a pressure plate 3, a first magnet 4, a second magnet 6, a fixed block 7, a lower cover assembly 8, and an upper cover assembly 9;

[0024] A first magnet mounting hole 3-1 is provided in the pressure plate 3, and the first magnet 4 is fixed in the first magnet mounting hole 3-1; positioning holes 2-3 and 2-4 are provided on the end face of the calibration circuit board assembly 2, and first positioning posts 1-3 and second positioning posts 1-4 are provided in the cap 1. The calibration circuit board assembly 2 is fixed to the cap 1 through the first positioning hole 2-3, the first positioning post 1-3, the second positioning hole 2-4, and the second positioning post 1-4; positioning holes 3-2 and 3-3 are provided on the end face of the pressure plate 3, and the cap 1 is fixed to the pressure plate 3 through the first positioning post 1-3, the third positioning hole 3-2, the fourth positioning hole 3-3, and the second positioning post 1-4; the fixed connection of each positioning hole and positioning post is completed through self-tapping screws;

[0025] A second magnet mounting hole 7-1 is provided in the fixed block 7, and a second magnet 6 is fixed in the second magnet mounting hole 7-1; the lower cover assembly 8 and the upper cover assembly 9 are symmetrically arranged, and first grooves 9-1 and second grooves 9-2 are horizontally provided at the top and bottom ends in the upper cover assembly 9. The two fixed blocks 7 are respectively inserted into the first grooves 9-1 and the second grooves 9-2 at both ends of the upper cover assembly 9 to be fixed to the upper cover assembly 9. The lower cover assembly 8 and the upper cover assembly 9 are spliced to form a housing, and the cap 1 is detachably connected to both ends of the housing, and the outer end of the first magnet 4 in the cap 1 has the opposite magnetic pole to the outer end of the second magnet 6 facing the outside of the housing.

[0026] Further, both the cap 1 and the pressure plate 3 are fixed to the calibration circuit board assembly 2 by self-tapping screws 5, and the cap 1 and the pressure plate 3 are also fixedly connected by self-tapping screws 5; the cap 1, the calibration circuit board assembly 2 and the pressure plate 3 are spliced to form a cap body.

[0027] Further, a first guide groove 8-1 and a second guide groove 8-2 are provided outside the lower cover assembly 8, and a positioning rib 1-5 is provided inside the cap 1. The cap is connected to the housing by fitting the positioning rib 1-5 with the first guide groove 8-1 or the second guide groove 8-2.

[0028] Further, a probe 9-3 is provided at the top end inside the upper cover assembly 9 and is fixedly connected to the upper cover assembly 9.

[0029] In this embodiment, when the moisture meter is not in use, align the positioning rib 1-5 of the cap 1 with the guide groove 8-1 of the lower cover assembly 8 and push it inward. The N pole of the first magnet 4 on the pressure plate 3 attracts the S pole of the second magnet 6 on the fixed block 7, and the cap 1 is tightly attached to the lower cover assembly 8 and the upper cover assembly 9 due to the magnetic force.

[0030] When the moisture meter is in use, align the positioning rib 1-5 of the cap 1 with the guide groove 8-2 of the lower cover assembly 8 and push it inward. The N pole of the first magnet 4 on the pressure plate 3 attracts the S pole of the second magnet 6 on the fixed block 7, and the cap 1 is tightly attached to the lower cover assembly 8 and the upper cover assembly 9 due to the magnetic force.

[0031] When calibrating the moisture meter, when the probe 9-3 of the upper cover assembly 9 is aligned with the calibration hole 1-1 of the cap 1 and contacts the calibration point 2-1 of the calibration circuit board assembly 2, the calibration data set is automatically displayed on the liquid crystal of the instrument; when the probe 9-3 of the upper cover assembly 9 is aligned with the calibration hole 1-2 of the cap 1 and contacts the calibration point 2-2 of the calibration circuit board assembly 2, another set of calibration data set is automatically displayed on the liquid crystal of the instrument.

[0032] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A wood moisture tester, characterized in that: It comprises a cap (1), a calibration circuit board assembly (2), a pressing plate (3), a first magnet (4), a second magnet (6), a fixing block (7), a lower cover assembly (8), and an upper cover assembly (9); The pressure plate (3) is provided with a magnet mounting hole 1 (3-1), and the magnet 1 (4) is fixed in the magnet mounting hole 1 (3-1); the end surface of the calibration circuit board assembly (2) is provided with a positioning hole 1 (2-3) and a positioning hole 2 (2-4); the cap (1) is provided with a positioning column 1 (1-3) and a positioning column 2 (1-4); the calibration circuit board assembly (2) is fixed to the cap (1) via the positioning hole 1 (2-3), the positioning column 1 (1-3) and the positioning hole 2 (2-4), and the positioning column 2 (1-4); the end surface of the pressure plate (3) is provided with a positioning hole 3 (3-2) and a positioning hole 4 (3-3); the cap (1) is fixed to the pressure plate (3) via the positioning column 1 (1-3), the positioning hole 3 (3-2), the positioning hole 4 (3-3), and the positioning column 2 (1-4); The fixing block (7) is provided with a second magnet mounting hole (7-1), and a second magnet (6) is fixed in the second magnet mounting hole (7-1); the lower cover assembly (8) and the upper cover assembly (9) are symmetrically arranged, and the top and bottom ends of the upper cover assembly (9) are both horizontally provided with a first groove (9-1) and a second groove (9-2); the two fixing blocks (7) are respectively inserted into the first groove (9-1) and the second groove (9-2) at both ends of the upper cover assembly (9) to be fixed to the upper cover assembly (9); the lower cover assembly (8) and the upper cover assembly (9) are spliced ​​to form a shell; the cap (1) is detachably connected to the two ends of the shell, and the magnetic poles of the outward end of the magnet (4) in the cap (1) are opposite to the magnetic poles of the outward end of the magnet (6) facing the shell.

2. A wood moisture tester according to claim 1, characterized in that: The cap (1) and the pressure plate (3) are both fixed to the calibration circuit board assembly (2) by means of a self-tapping screw (5), and the cap (1) and the pressure plate (3) are also fixedly connected by means of a self-tapping screw (5); the cap (1), the calibration circuit board assembly (2) and the pressure plate (3) are spliced ​​together to form a cap body.

3. A wood moisture tester according to claim 1, characterized in that: The lower cover assembly (8) is provided with a first guide groove (8-1) and a second guide groove (8-2) on the outside, and the cap (1) is provided with a positioning rib (1-5) on the inside. The cap (1) is connected to the housing through the positioning rib (1-5) cooperating with the first guide groove (8-1) or the second guide groove (8-2).

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