Rapidly replaceable diaphragm haze meter

Abstract

The utility model discloses a diaphragm haze meter capable of being quickly replaced. The diaphragm haze meter comprises a parallel light source body assembly and a diaphragm flange arranged along the light path direction of the parallel light source body assembly, the parallel light source body assembly comprises a light-emitting light source body, a light source body diaphragm and a plate lens which are arranged in sequence; the diaphragm flange is arranged beside the plate lens; the diaphragm flange is provided with an internal thread and an external thread, and two sides of the diaphragm flange are also provided with diaphragm flange straight ports. According to the utility model, the threaded tooth hole is processed inside the diaphragm, so that the halo phenomenon of light beams is eliminated, that is, no aperture is formed outside the light beams, so that the parallel light beams are purer and more uniform, and the test data are more accurate; the diaphragm is provided with external teeth for assembly, the external teeth are connected with corresponding tooth holes of the light source supporting plate, the coaxiality of threaded connection is higher, and light beams are more concentric; the diaphragm is provided with a straight opening edge so as to be convenient for hand screwing or other tool assembling.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragms, in particular to a rapidly replaceable diaphragm haze meter. Background Art

[0002] In the past, when testing different objects to be measured on haze meter instruments, a parallel light source is needed to detect the object, but there is only one light source, which cannot be replaced. At this time, an aperture is needed to change the size of the parallel light beam, so as to accurately transmit the measured object and obtain an accurate value of the amount of light transmitted. If a large light beam is used to test an object smaller than the light source, a false value of the amount of light transmitted will be caused, because part of the light passes directly without penetrating the measured object. Therefore, the above reasons require the aperture size to be accurate, and higher requirements are placed on the deformation and material of the aperture, and the elimination of stray light, in order to meet the accuracy of the measured object. The aperture commonly used for parallel light sources before is a stainless steel thin sheet ring design. The magnetic adsorption replacement of the aperture will have the following shortcomings: the light source is not concentric when magnetically attached, the parallel light deviates, the thin sheet design is not convenient to replace, and the thin sheet is easy to deform, resulting in test errors after deformation. The light-speed replacement aperture of this utility model solves the above problems. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a rapidly replaceable aperture haze meter.

[0004] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The utility model provides a rapidly replaceable aperture haze meter, comprising: a parallel light source assembly, an aperture flange arranged along the light path direction of the parallel light source assembly;

[0006] The parallel light source assembly comprises a light source, a light source aperture, and a flat lens which are arranged in sequence; the aperture flange is placed beside the flat lens;

[0007] The aperture flange is provided with internal threads and external threads, and both sides of the aperture flange are provided with aperture flange straight openings.

[0008] Preferably, the quickly replaceable aperture hazemeter also includes a light source support plate; one end of the cylindrical body of the light source body, the light source body aperture, and the flat lens are all placed in the light source support plate, and the aperture flange is arranged on one side of the light source support plate and opposite to the flat lens.

[0009] Preferably, a circular hole is formed on the light source support plate, and the outer diameter of the circular hole is larger than the outer diameter of the aperture flange.

[0010] Preferably, the aperture flange is placed in the circular hole, and the external threads on the aperture flange are connected to the threads at the circular hole.

[0011] Preferably, the light source support plate is further provided with a plurality of screw holes arranged around the circular hole, and each screw hole is provided with a hexagon socket screw for fixing with the cylinder of the light source body inserted into the light source support plate.

[0012] Preferably, the aperture flange is made of aluminum alloy, and the surface is covered with a black matte anodized film.

[0013] Preferably, an aperture opening is also provided in the middle of the aperture flange.

[0014] Preferably, a second hexagon socket screw is further provided at the bottom of the light source support plate.

[0015] Preferably, the light source comprises an LED lamp.

[0016] The technical solution of the utility model has the following beneficial effects:

[0017] The utility model processes a threaded hole inside the aperture, which eliminates the halo phenomenon of the light beam, that is, the light beam that comes out will not have an aperture outside, so that the parallel light beam that comes out is purer and more uniform, so that the test data is more accurate;

[0018] The utility model aperture is designed with an external thread assembly, the external thread is connected with the thread hole corresponding to the light source support plate, the thread connection has a higher coaxiality and the light beam is more concentric;

[0019] The utility model aperture is designed with a flange edge, which can cover the opening of the outer cover when the whole machine is assembled;

[0020] The utility model aperture is designed with a straight edge for easy hand screwing or other tool assembly.

[0021] The aperture of the utility model is made of aluminum alloy. When the whole instrument is often used, light will also generate some heat. Aluminum alloy dissipates heat faster and can extend the service life of the whole instrument.

[0022] The utility model aperture is provided with a matte black anodized film, and the matte black can eliminate the stray light of the light beam, and the brightness of the emitted light beam is uniform around the circumference. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The schematic diagram of the assembly structure of the parallel light source assembly, light source support plate and aperture flange of the utility model Figure 1 ;

[0024] Figure 2 The schematic diagram of the assembly structure of the parallel light source assembly, light source support plate and aperture flange of the utility model Figure 2 ;

[0025] Figure 3This is a schematic diagram of the aperture flange structure of the utility model;

[0026] Figure 4 This is a cross-sectional view of the aperture flange of the utility model;

[0027] Figure 5 This is a schematic diagram of the utility model of diaphragm flange being assembled on a haze meter instrument. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] Reference Figures 1 to 5 The utility model provides a rapidly replaceable aperture haze meter, comprising: a parallel light source assembly, an aperture flange 10 arranged along the light path direction of the parallel light source assembly;

[0034] The parallel light source assembly comprises a light source 21, a light source aperture 24, and a flat lens 25 which are arranged in sequence; the aperture flange 10 is placed beside the flat lens 25; the light source comprises an LED lamp;

[0035] The aperture flange 10 is provided with an internal thread 12 and an external thread 13. The internal thread 12 is processed inside the aperture flange 10, which eliminates the halo phenomenon of the light beam, that is, the light beam will not have an external aperture, so that the parallel light beam can be purer and more uniform, so that the test data is more accurate;

[0036] The middle of the aperture flange 10 is also provided with an aperture opening 11, and both sides of the aperture flange 10 are also provided with aperture flange straight openings 14, which are convenient for hand tightening or wrench tools when replacing. If a measuring object is fixed, a matching aperture can be selected and tightened for use. If it is often replaced, it can be used by hand tightening.

[0037] Furthermore, the quickly replaceable aperture hazemeter also includes a light source support plate 22; one end of the cylindrical body of the light source body 21, the light source body aperture 24, and the flat lens 25 are all placed in the light source support plate 22, and the aperture flange 10 is arranged on one side of the light source support plate 22 and opposite to the flat lens 25.

[0038] Furthermore, a circular hole is provided on the light source support plate 22, and the outer diameter of the circular hole is larger than the outer diameter of the aperture flange. The aperture flange 10 is placed in the circular hole, and the external thread 13 thereon is connected with the thread at the circular hole. The aperture flange 10 is designed with an external thread 13, and the external thread is connected with the thread hole corresponding to the light source support plate. The threaded connection has higher coaxiality and the light beam is more concentric.

[0039] Furthermore, the light source support plate 22 is provided with a plurality of screw holes arranged around the circular hole, and each screw hole is provided with a hexagon socket screw 21, which is used to fix the cylindrical body of the light emitting light source body 20 inserted into the light source support plate 22. The assembly cooperation between the light emitting light source body 20 and the light source support plate 22 is zero-matched, and the coaxial assembly dimension is more than 30 mm, which further ensures the coaxiality, and three hexagon socket screws 21 are used to reinforce the connection straightness, and the stability is good.

[0040] Furthermore, the material of the aperture flange 10 is aluminum alloy, and the surface is covered with a black matte anodized film. The aperture flange 10 is made of aluminum alloy. When the entire instrument is often used, light will also generate some heat. Aluminum alloy dissipates heat faster and can better ensure the service life of the entire instrument. The use of black matte can better eliminate stray light in the light beam, and the brightness of the emitted light beam is consistent around the circle. The bottom of the light source support plate 22 is also provided with a hexagon socket screw 23, which mainly supports the light source support plate 22.

[0041] The utility model processes a threaded hole inside the aperture, which eliminates the halo phenomenon of the light beam, that is, the light beam that comes out will not have an aperture outside, so that the parallel light beam that comes out is purer and more uniform, so that the test data is more accurate;

[0042] The utility model aperture is designed with an external thread assembly, the external thread is connected with the thread hole corresponding to the light source support plate, the thread connection has a higher coaxiality and the light beam is more concentric;

[0043] The utility model aperture is designed with a flange edge, which can cover the opening of the outer cover when the whole machine is assembled;

[0044] The utility model aperture is designed with a straight edge for easy hand screwing or other tool assembly.

[0045] The aperture of the utility model is made of aluminum alloy. When the whole instrument is often used, light will also generate some heat. Aluminum alloy dissipates heat faster and can extend the service life of the whole instrument.

[0046] The utility model aperture is provided with a matte black anodized film, and the matte black can eliminate the stray light of the light beam, and the brightness of the emitted light beam is uniform around the circumference.

[0047] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A rapidly replaceable aperture haze meter, characterized in that: include: A parallel light source assembly and an aperture flange arranged along the light path direction of the parallel light source assembly; The parallel light source assembly comprises a light source, a light source aperture, and a flat lens which are arranged in sequence; the aperture flange is placed beside the flat lens; The aperture flange is provided with internal threads and external threads, and both sides of the aperture flange are provided with aperture flange straight openings.

2. The quickly replaceable aperture haze meter according to claim 1, characterized in that: The quickly replaceable aperture haze meter also includes a light source support plate; one end of the cylindrical body of the light source body, the light source body aperture, and the flat lens are all placed in the light source support plate, and the aperture flange is arranged on one side of the light source support plate and opposite to the flat lens.

3. The quickly replaceable aperture haze meter according to claim 2, characterized in that: A circular hole is formed on the light source support plate, and the outer diameter of the circular hole is larger than the outer diameter of the aperture flange.

4. The quickly replaceable aperture haze meter according to claim 3, characterized in that: The aperture flange is placed in the circular hole, and the external threads on the aperture flange are connected with the threads at the circular hole.

5. The quickly replaceable aperture haze meter according to claim 4, characterized in that: The light source support plate is also provided with a plurality of screw holes arranged around the circular hole, and each screw hole is provided with a hexagon socket screw for fixing with the cylinder of the light source body inserted into the light source support plate.

6. The quickly replaceable aperture haze meter according to claim 4, characterized in that: The aperture flange is made of aluminum alloy, and its surface is covered with a black matte anodized film.

7. The quickly replaceable aperture haze meter according to claim 6, characterized in that: An aperture opening is also arranged in the middle of the aperture flange.

8. The quickly replaceable aperture haze meter according to claim 5, characterized in that: The bottom of the light source support plate is also provided with two hexagon socket screws.

9. The quickly replaceable aperture haze meter according to claim 5, characterized in that: The light source includes an LED lamp.

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