A grating stage for a photometer

Abstract

The utility model relates to the technical field of photometer, disclose a grating platform for photometer, including photometer casing and grating component, the photometer casing includes the light -transmitting plate and touch -control platform, the light -transmitting plate is located one side at the top of photometer casing, the touch -control platform is located the other side at the top of photometer casing, the grating component includes the protection cover, the adjusting block and the supporting plate, the protection cover is located the inside of grating component, two groups adjusting block symmetry is located the intermediate position at the both ends of protection cover, the supporting plate is located one side in the inside of photometer casing. The utility model discloses through the magnetic stripe, iron strip and sealing washer can tightly adhere in the top of light -transmitting plate, is convenient for to the light -transmitting plate of photometer and protects, through servo motor, adjusting screw, adjusting block and locating rod can be left and right to the protection cover and adjust, is convenient for to the grating component and protects, avoids dust and influences the use of grating component, makes the use effect of photometer better.

Description

Technical Field

[0001] This utility model relates to the field of photometer technology, specifically to a photometer grating stage. Background Technology

[0002] A photometer is an instrument used to measure light intensity. It is widely used in laboratories, industrial testing, and everyday lighting measurement. The grating is one of the main structures of a photometer. Because the grating is expensive, it needs to be protected by a grating stage.

[0003] In the operation of photometers, especially high-power photometers, heat dissipation slots or holes are inevitably required in the housing to ensure the stability of internal electronic components. However, these holes also provide a channel for external dust to enter the housing. Currently, in the standby or non-use state of photometers, there is a lack of effective shielding for internal core optical components, such as gratings, causing dust to settle on the grating surface for a long time, affecting measurement accuracy and resulting in poor photometer performance. Utility Model Content

[0004] The purpose of this invention is to provide a grating stage for a photometer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a photometer grating stage, comprising a photometer housing and a grating assembly, wherein the photometer housing includes a light-transmitting plate and a touch panel, the light-transmitting plate is disposed on one side of the top of the photometer housing, and the touch panel is disposed on the other side of the top of the photometer housing, the grating assembly includes a protective cover, adjusting blocks and a support plate, the protective cover is disposed inside the grating assembly, two sets of adjusting blocks are symmetrically disposed at the middle positions of both ends of the protective cover, and the support plate is disposed on one side inside the photometer housing.

[0006] Preferably, a servo motor is installed on one side of the support plate, and the output end of the servo motor is connected to an adjusting screw that penetrates into a set of adjusting blocks. One end of the photometer housing is provided with a positioning rod that penetrates into another set of adjusting blocks, and a rubber strip is provided on one side of the protective cover.

[0007] Preferably, the top of the photometer housing is provided with a movable cover on the side away from the touch panel, the bottom of the movable cover is provided with a sealing ring, the top of the photometer housing is provided with a fixing frame on the outer side of the light-transmitting plate, the bottom front end of the movable cover is provided with a magnetic strip, and the front end of the photometer housing is provided with an iron strip on the side near the light-transmitting plate.

[0008] Preferably, a slot is provided on one side of the top of the photometer housing, and the light-transmitting plate is detachably connected to the photometer housing through the slot. Support legs are provided at the four corners of the bottom of the photometer housing.

[0009] Preferably, the bottom of the protective cover is provided with a slot, the grating assembly is connected to the photometer housing by bolts, and the rear end of the photometer housing has multiple sets of heat dissipation slots.

[0010] Preferably, the servo motor is connected to the support plate by bolts, and a bearing is provided on one side of the inside of the photometer housing, with one end of the adjusting screw penetrating into the bearing.

[0011] Preferably, the interior of one set of the adjusting blocks is provided with threaded holes that match the adjusting screw, and the set of protective covers is threadedly connected to the adjusting screw through the threaded holes.

[0012] Preferably, the other set of adjustment blocks has a positioning hole inside, and the positioning rod passes through the positioning hole.

[0013] Preferably, one end of the movable cover has a rotating hole, the rear end of the fixed frame has a fixed shaft that extends through the rotating hole, and the sealing ring is fixedly connected to the movable cover by glue.

[0014] Preferably, one end of the movable cover is detachably connected to the photometer housing via a magnetic strip and an iron strip.

[0015] Compared with the prior art, the beneficial effects of this utility model are: by setting a movable cover and using the sealing ring at its bottom and the magnetic strip and iron strip at the front end to fix it, this utility model achieves effective protection of the external light-transmitting plate of the photometer, preventing it from being impacted or contaminated by the outside when it is not in operation.

[0016] This invention addresses the technical problem of dust inevitably entering the photometer housing due to heat dissipation requirements, eventually settling on the expensive grating assembly and affecting accuracy. The solution uses a controller and limit switches, along with a servo motor, adjusting screw, and positioning rod, to form a complete closed-loop control system. This system can precisely drive the protective cover to adjust left and right: when the photometer is working, the protective cover automatically moves open, exposing the grating assembly; when the photometer is in standby mode, the protective cover automatically moves and tightly shields the grating assembly with rubber strips.

[0017] This effectively prevents dust from settling on the grating surface during standby, solving a core problem in the background technology. Simultaneously, the limit switch ensures precise positioning of the protective cover and automatically cuts off the motor when the travel reaches its end point, completely avoiding the risk of the servo motor burning out or damaging the mechanical structure due to stalling. This significantly improves the reliability and lifespan of the equipment, resulting in better protection for the photometer. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional view of the present invention.

[0021] Figure 3 This is a cross-sectional view of the present invention.

[0022] In the diagram: 1. Photometer housing; 101. Light-transmitting plate; 102. Touch panel; 2. Grating assembly; 201. Protective cover; 202. Adjusting block; 203. Support plate; 204. Servo motor; 205. Adjusting screw; 206. Positioning rod; 207. Rubber strip; 3. Movable cover; 301. Sealing ring; 302. Fixing frame; 303. Magnetic strip; 304. Iron strip. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-3 This utility model provides an embodiment of a photometer grating stage: A photometer grating stage includes a photometer housing 1 and a grating assembly 2. The photometer housing 1 includes a light-transmitting plate 101 and a touch panel 102. The light-transmitting plate 101 is located on one side of the top of the photometer housing 1, and the touch panel 102 is located on the other side of the top of the photometer housing 1, which can control the photometer. The grating assembly 2 includes a protective cover 201, adjusting blocks 202, and a support plate 203. The protective cover 201 is located inside the grating assembly 2 and can protect the grating assembly 2. Two sets of adjusting blocks 202 are symmetrically arranged at the middle positions of both ends of the protective cover 201. The support plate 203 is located on the photometer housing. A servo motor 204 is installed on one side of the support plate 203 inside the body 1, so that the servo motor 204 can be installed inside the photometer housing 1. The output end of the servo motor 204 is connected to an adjusting screw 205 that passes through the inside of a set of adjusting blocks 202, providing power for the movement of the protective cover 201. One end of the photometer housing 1 is provided with a positioning rod 206 that passes through the inside of another set of adjusting blocks 202, so that the movement of the protective cover 201 is more stable and it is easier to protect the grating assembly 2. A rubber strip 207 is provided on one side of the protective cover 201, so that one end of the protective cover 201 can contact the photometer housing 1, which provides better protection for the grating assembly 2.

[0028] Please refer to this carefully. Figure 1 and Figure 3A movable cover 3 is provided on the top side of the photometer housing 1 away from the touch panel 102. A sealing ring 301 is provided at the bottom of the movable cover 3, which provides better protection for the light-transmitting plate 101. A fixing bracket 302 is provided on the outer side of the top of the photometer housing 1 at the position of the light-transmitting plate 101, which can support the movable cover 3 and facilitate the use of the movable cover 3 by flipping it. A magnetic strip 303 is provided at the front end of the bottom of the movable cover 3. An iron strip 304 is provided on the front end of the photometer housing 1 near the light-transmitting plate 101, which makes the use of the movable cover 3 more efficient.

[0029] Please refer to this carefully. Figure 1 and Figure 2 A slot is provided on one side of the top of the photometer housing 1. The light-transmitting plate 101 is detachably connected to the photometer housing 1 through the slot, allowing the light-transmitting plate 101 to be installed on the top of the photometer housing 1. Support legs are provided at the four corners of the bottom of the photometer housing 1 to provide support and make the photometer more stable during use. The bottom of the protective cover 201 has a slot, and the grating assembly 2 is connected to the photometer housing 1 by bolts. Multiple heat dissipation slots are provided at the rear end of the photometer housing 1 to facilitate heat dissipation of the photometer. The servo motor 204 is connected to the support plate 203 by bolts to achieve the function of... A servo motor 204 is installed. A bearing is provided on one side inside the photometer housing 1, and one end of the adjusting screw 205 passes through the bearing to make the use of the adjusting screw 205 more stable. A set of adjusting blocks 202 has threaded holes inside that match the adjusting screw 205. A set of protective covers 201 is threadedly connected to the adjusting screw 205 through the threaded holes to achieve the effect of limit adjustment and provide power for the adjustment of the protective cover 201. Another set of adjusting blocks 202 has positioning holes inside, and a positioning rod 206 passes through the positioning holes to achieve the effect of limit adjustment and make the adjustment of the protective cover 201 more stable.

[0030] Please refer to this carefully. Figure 1 and Figure 3 The movable cover 3 has a rotating hole at one end inside, and the fixed frame 302 has a fixed shaft at the rear end that passes through the rotating hole, which allows the movable cover 3 and the fixed frame 301 to be flipped. The sealing ring 301 is fixedly connected to the movable cover 3 with glue, so that the sealing ring 301 is installed at the bottom of the movable cover 3. One end of the movable cover 3 is detachably connected to the photometer housing 1 through the magnetic strip 303 and the iron strip 304, which can limit one end of the movable cover 3 and make the use of the movable cover 3 better.

[0031] Furthermore, this utility model also includes a first limit switch and a second limit switch for limiting the travel of the protective cover 201, the first limit switch and the second limit switch being located at both ends of the movement path of the protective cover 201; it also includes a controller, the controller being electrically connected to the control panel 102, the servo motor 204, the first limit switch and the second limit switch respectively.

[0032] Working Principle: This utility model provides external protection for the light-transmitting plate and internal protection for the grating assembly. When the photometer is not in use, the movable cover 3 can be flipped closed. Through the rotating hole and the fixed shaft, the movable cover 3 rotates around the fixed frame 302. After closing, the sealing ring 301 at the bottom of the movable cover 3 fits tightly against the housing around the light-transmitting plate 101. At the same time, the magnetic strip 303 at the front end of the movable cover 3 attracts the iron strip 304 at the front end of the photometer housing 1, fixing the movable cover 3 in the closed position, effectively protecting the light-transmitting plate 101 from external impacts and contamination. The core of this solution is to solve the problem of dust inevitably introduced into the heat dissipation slot, thus contaminating the internal grating assembly 2 when the equipment is in standby mode. This function is realized by the protective cover 201 and its control system, which includes a controller, a touch panel 102, a servo motor 204, a first limit switch, and a second limit switch. When the operator issues a "start working" command through the touch panel 102, the command is sent to the controller. The controller starts the servo motor 204 to rotate forward, driving the adjusting screw 205 to drive the protective cover 201. Guided by the positioning rod 206, the protective cover 201 moves stably to one side, fully exposing the grating assembly 2, allowing the photometer to operate normally. When the protective cover 201 moves to the predetermined opening end, it triggers the first limit switch, which immediately sends a stop signal to the controller. The controller then stops the servo motor 204, completing the opening. When the work is completed or the equipment is in standby mode, the operator issues a "standby" or "close" command via the touch panel 102. The controller starts the servo motor 204 to rotate in reverse, driving the protective cover 201 to move in the opposite direction, covering the grating assembly 2. When the protective cover 201 moves to the predetermined closing end, the rubber strip 207 on its side comes into close contact with the inner wall of the photometer housing 1, forming a seal. Simultaneously, the protective cover 201 triggers the second limit switch, which sends a stop signal to the controller. The controller then stops the servo motor 204, completing the shielding. This closed-loop control, which includes limit feedback, not only achieves effective dust protection for the grating assembly 2 during standby, but also ensures that the servo motor 204 will not be damaged due to stalling, making the left and right adjustment of the protective cover 201 stable, precise, safe and reliable.

[0033] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A grating stage for a photometer, characterized in that: include A photometer housing (1) includes a light-transmitting plate (101) and a touch panel (102). The light-transmitting plate (101) is located on one side of the top of the photometer housing (1), and the touch panel (102) is located on the other side of the top of the photometer housing (1). The grating assembly (2) includes a protective cover (201), an adjustment block (202) and a support plate (203). The protective cover (201) is located inside the grating assembly (2). Two sets of adjustment blocks (202) are symmetrically located at the middle positions at both ends of the protective cover (201). The support plate (203) is located on one side inside the photometer housing (1).

2. The photometer grating stage according to claim 1, characterized in that: A servo motor (204) is installed on one side of the support plate (203). The output end of the servo motor (204) is connected to an adjusting screw (205) that penetrates into a set of adjusting blocks (202). One end of the photometer housing (1) is provided with a positioning rod (206) that penetrates into another set of adjusting blocks (202). A rubber strip (207) is provided on one side of the protective cover (201).

3. The photometer grating stage according to claim 1, characterized in that: The photometer housing (1) has a movable cover (3) on the side away from the touch panel (102) at the top. The movable cover (3) has a sealing ring (301) at the bottom. The photometer housing (1) has a fixing bracket (302) on the outside of the light-transmitting plate (101) at the top. The movable cover (3) has a magnetic strip (303) at the front end of the bottom. The photometer housing (1) has an iron strip (304) on the side of the front end near the light-transmitting plate (101).

4. The photometer grating stage according to claim 1, characterized in that: A slot is provided on one side of the top of the photometer housing (1), and the light-transmitting plate (101) is detachably connected to the photometer housing (1) through the slot. Support legs are provided at the four corners of the bottom of the photometer housing (1).

5. A photometer grating stage according to claim 1, characterized in that: The bottom of the protective cover (201) is provided with a slot, and the grating assembly (2) is connected to the photometer housing (1) by bolt installation. The rear end of the photometer housing (1) has multiple sets of heat dissipation slots.

6. A photometer grating stage according to claim 2, characterized in that: The servo motor (204) is connected to the support plate (203) by bolt installation. A bearing is provided on one side of the inside of the photometer housing (1), and one end of the adjusting screw (205) passes through the inside of the bearing.

7. A photometer grating stage according to claim 2, characterized in that: A set of the adjusting blocks (202) has a threaded hole inside that matches the adjusting screw (205), and a set of the protective covers (201) are threadedly connected to the adjusting screw (205) through the threaded hole.

8. A photometer grating stage according to claim 2, characterized in that: Another set of the adjustment blocks (202) has a positioning hole inside, and the positioning rod (206) passes through the positioning hole.

9. A photometer grating stage according to claim 1, characterized in that: The movable cover (3) has a rotating hole at one end, and the fixed frame (302) has a fixed shaft that passes through the rotating hole at the rear end. The sealing ring (301) is fixedly connected to the movable cover (3) with glue.

10. A photometer grating stage according to claim 1, characterized in that: One end of the movable cover (3) is detachably connected to the photometer housing (1) via a magnetic strip (303) and an iron strip (304).

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