Portable COD (Chemical Oxygen Demand) detector

Abstract

The utility model relates to a portable COD (Chemical Oxygen Demand) detector which comprises an outer box body and a detector body arranged in the outer box body, and a box cover capable of being opened and closed is arranged at the top of the outer box body; two arms of the U-shaped rod are longitudinally and rotationally connected with the left side wall and the right side wall of the outer box body through two rotating assemblies respectively; the two U-shaped rods are located at the front end and the rear end of the outer box body correspondingly. The U-shaped rod is in sliding connection with the rotating assembly; the positioning assembly is used for positioning the U-shaped rod and preventing the U-shaped rod from moving; when the U-shaped rod rotates downwards in place, the connecting part of the two arms of the U-shaped rod is positioned below the outer box body; during use, the two arm connecting parts of the two U-shaped rods can be turned upwards to be close to each other, so that a detector can conveniently carry the outer box body by hand, when the U-shaped rods are downwards adjusted in place, the two arm connecting parts are located below the outer box body, the U-shaped rods are fixed through the positioning assemblies, the outer box body can be supported above the ground, the bottom of the outer box body is prevented from being in direct contact with the ground, and the detection efficiency is improved. And the cleanliness of the outer box body is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to COD detector technical field, especially portable COD detector. BACKGROUND

[0002] With the development of industry, water pollution is more and more serious, and chemical oxygen demand (COD) can reflect the degree of pollution of water by reducing material, and it is an important standard for measuring environmental quality, at present, the traditional method for measuring chemical oxygen demand generally adopts chemical method, mainly adopts potassium dichromate standard method and coulometric titration method, and the detection method is different according to the different water quality chloride concentration, and the potassium dichromate method and acid potassium permanganate method are generally used for freshwater, and the alkaline potassium permanganate method is used for seawater.

[0003] In the detection process, in order to be convenient, most of the detection personnel carry portable COD detector to the scene sampling detection, but most of the portable COD detectors on the market are hand-held box structures, and the detection points in the actual detection routine are mostly river banks or reservoir banks and other positions with poor ground environment, the existing portable detector can only be placed on the ground during detection, but this will cause the dirt such as soil and silt on the ground to adhere to the bottom and the periphery of the detector, so that the detection personnel need to clean the dirt after each detection, and it is quite troublesome to use, therefore, it is necessary to provide a new portable detector to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a portable COD detector, which can solve the above problems.

[0005] To achieve the above requirements, the utility model adopts the technical scheme of:

[0006] Provided is a portable COD detector, which comprises an outer box body and a detector body arranged in the outer box body, and the top of the outer box body is provided with a box cover that can be opened and closed. The two arms of the U-shaped rod are respectively connected to the left and right side walls of the outer box body through two rotating assemblies. The U-shaped rod is provided with two arms and is located at the front and rear ends of the outer box body. The U-shaped rod is connected to the rotating assembly through sliding. A positioning assembly is arranged to prevent the U-shaped rod from moving. When the U-shaped rod is rotated downward to the position, the two arm connecting portions of the U-shaped rod are located below the outer box body.

[0007] The portable COD detector, wherein the rotating assembly is located at the upper part of the outer box body.

[0008] The utility model discloses a portable COD detector, wherein the interval between the two rotating shafts of the two U-shaped rods is less than the sum of the lengths of the two arms of the U-shaped rod.

[0009] The utility model discloses a portable COD detector, wherein the rotating assembly comprises a base fixedly connected with the outer box body, and a movable seat longitudinally rotatably connected with the base; the movable seat is provided with a through hole through which the U-shaped rod passes; and the positioning assembly is arranged on the movable seat.

[0010] The utility model discloses a portable COD detector, wherein the positioning assembly comprises a positioning pin parallel to the rotating shaft of the movable seat, and a positioning hole arranged on the end face of the end of the movable seat away from the outer box body and matched with the positioning pin; the positioning hole penetrates the movable seat and is communicated with the through hole; a plurality of clamping grooves are arranged on the U-shaped rod along the length direction of the U-shaped rod; and a positioning protrusion is arranged on the positioning pin corresponding to the clamping groove; a positioning groove matched with the positioning pin is arranged on the base; the positioning groove is coaxially arranged around the rotating shaft of the movable seat.

[0011] The utility model discloses a portable COD detector, wherein the end of the movable seat away from the base is coaxially rotatably connected with a movable plate; a ring-shaped magnet is coaxially arranged on the side wall of the movable plate facing the movable seat; the end face of the ring-shaped magnet facing the movable seat is a spiral inclined plane; a magnet block is fixed on the positioning pin; and the magnet block is adsorbed and attached to the inclined plane of the ring-shaped magnet.

[0012] The utility model discloses a portable COD detector, wherein a recess is coaxially arranged on the end face of the movable seat away from the base; and the positioning hole is eccentrically arranged on the bottom face of the recess; when assembled in place, one end of the ring-shaped magnet extends into the recess.

[0013] The utility model discloses a portable COD detector, wherein a ring-shaped cofferdam is coaxially arranged on the side wall edge of the movable plate facing the base; the ring-shaped cofferdam is located on the outside of the movable seat; and an avoiding groove for avoiding the U-shaped rod is arranged on the side wall of the ring-shaped cofferdam.

[0014] The utility model has the advantages that when used, the two arms of the two U-shaped rods can be connected and folded upwards, the U-shaped rod can be fixed by the positioning assembly to prevent axial movement and disconnection from the rotating assembly, and then the detector operator can conveniently hold the outer box body with one hand, and of course, two detector operators can hold one U-shaped rod each.

[0015] In addition, when the U-shaped rod is adjusted to the position by sliding downward, the two-arm connecting portions of the U-shaped rod are located below the outer box body, and the U-shaped rod is fixed by cooperating with the positioning assembly to prevent relative movement of the U-shaped rod and the outer box, at this time, the outer box body can be supported above the ground to avoid the bottom of the outer box body directly contacting the ground, thereby ensuring the cleanliness of the outer box body; and in another use state, the end portion of the U-shaped rod is rotated downward and below the bottom surface of the outer box body, at this time, the U-shaped rod can be inserted into the soil of the ground, so that the outer box body has a certain gap with the ground, and the stability of the outer box body can also be ensured to avoid shaking of the outer box body. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the present application will be further described below with reference to the drawings and embodiments. The drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings:

[0017] Figure 1 is a front view of the present application.

[0018] Figure 2 is Figure 1 is an enlarged view of A in FIG.

[0019] Figure 3 is a side view of the present application.

[0020] Figure 4 is a state diagram of the two-arm connecting portions of the two U-shaped rods of the present application after being folded upward.

[0021] Figure 5 is a longitudinal sectional view of the rotating assembly of the present application.

[0022] Figure 6 is Figure 5 is a state diagram of the rotating movable plate moving the positioning pin out of the positioning groove in FIG. DETAILED DESCRIPTION

[0023] The terms "first", "second", "third", and "fourth" and the like in the description and claims of the present application and the drawings referred to herein, are used for distinguishing between similar objects, not necessarily for describing a particular sequential or chronological order. The terms "include" and "have" and their derivatives, mean "including but not limited to", and are not intended to (and not to) exclude other moieties, steps or units. For example, a process, method, system, product or apparatus that comprises a list of steps or units is not necessarily limited to the listed steps or units, but can include other steps or units not expressly listed or inherent to such process, method, system, product or apparatus.

[0024] Reference to "an embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all referring to a particular embodiment logically divided into parts. It is explicitly contemplated that embodiments described herein can be combined to include claims directed to combinations of the embodiments.

[0025] "Multiple" refers to two or more. "And / or", describing the relationship between the associated objects, means that there can be three relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. The character " / " generally represents that the associated objects before and after are a kind of "or" relationship.

[0026] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the utility model, not all. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] The portable COD detector of the preferred embodiment of the utility model, as shown in the figure, Figures 1-6 The detector includes an outer box body 10 and a detector body (not shown) arranged in the outer box body 10. The top of the outer box body 10 has a openable box cover 20 to facilitate opening and using the detector body for detection. The outer box body 10 is a cuboid structure. Further, the detector also includes a U-shaped rod 30, which is made of aluminum alloy or stainless steel to ensure the supporting strength of the structure. The radial cross section of the U-shaped rod is circular. The two arms of the U-shaped rod 30 are respectively connected to the left and right side walls of the outer box body 10 through two rotating assemblies 40 to enable the U-shaped rod 30 to be flipped upwards or downwards. The U-shaped rod 30 is provided with two arms located at the front and rear ends of the outer box body 10. The U-shaped rod 30 is connected to the rotating assembly 40. Further, the detector also includes a positioning assembly 50 for positioning the U-shaped rod 30 to prevent it from moving. When the U-shaped rod 30 needs to be slid or rotated, it can be adjusted by rotating and sliding. When the U-shaped rod 30 needs to be fixed, it is fixed by the positioning assembly 50 to make it fixed with the outer box body 10. When the U-shaped rod 30 is rotated downwards to the position, the two arm connecting parts of the U-shaped rod 30 are located below the outer box body 10. At this time, the U-shaped rod 30 is fixed with the outer box body 10 by the positioning assembly 50, and the outer box body 10 can be supported above the ground.

[0028] In use, the two arms of the two U-shaped rods 30 are connected and turned upwards to be close to each other, and the U-shaped rods 30 are fixed by the positioning assembly 50 to prevent axial movement and disengagement of the rotating assembly 40, thereby facilitating a single hand of the detection personnel to carry the outer box body 10, and of course, two detection personnel can carry one U-shaped rod 30 each.

[0029] In addition, when the U-shaped rod 30 is adjusted to the position by sliding downward, the two arm connecting portions of the U-shaped rod 30 are located below the outer box body 10, and cooperate with the positioning assembly 50 to fix the U-shaped rod 30 to prevent relative movement with the outer box, at this time, the outer box body 10 can be supported above the ground to avoid the bottom of the outer box body 10 directly contacting the ground, thereby ensuring the cleanliness of the outer box body 10; and in another use state, the end portion of the U-shaped rod 30 is rotated downward and below the bottom surface of the outer box body 10, at this time, the U-shaped rod 30 can be inserted into the soil of the ground, so that the outer box body 10 has a certain gap with the ground, and the stability of the outer box body 10 can also be ensured to avoid shaking of the outer box body 10.

[0030] In the embodiment, the rotating assembly 40 is located at the upper portion of the outer box body 10, so that when the two arm connecting portions of the U-shaped rod 30 are turned upwards, there is enough length to be inclined towards each other, thereby facilitating the two connecting portions to be closed together, and facilitating the detection personnel to hold and carry with a single hand; at the same time, the center of gravity of the outer box body 10 is also lower to ensure the stability when supported on the ground.

[0031] In the embodiment, the distance between the two rotating shafts of the two U-shaped rods 30 is less than the sum of the lengths of the two arms of the U-shaped rod 30, so that the two connecting portions of the two U-shaped rods 30 can be turned upwards and close together side by side to form a triangular structure, thereby ensuring the stability when carrying and moving, and avoiding relative rotation of the outer box body 10 and the U-shaped rod.

[0032] In the embodiment, the rotating assembly 40 comprises a base 41 fixedly connected with the outer box body 10, and a movable seat 42 longitudinally connected with the base 41; the base 41 is connected with the side wall of the outer box body 10, wherein the movable seat 42 and the base 41 are both cylindrical structures; the movable seat 42 is provided with a through hole 421 through which the U-shaped rod 30 passes, and the diameter of the through hole 421 is matched with the diameter of the U-shaped rod 30; wherein the positioning assembly 50 is arranged on the movable seat 42, specifically, the positioning assembly 50 comprises a positioning pin 51 parallel to the rotating shaft of the movable seat 42, and a positioning hole 52 arranged on the end face of the movable seat 42 away from the outer box body 10 and matched with the positioning pin 51; the positioning hole 52 penetrates through the movable seat 42 and communicates with the through hole 421, specifically, the positioning hole 52 is adjacent to the through hole 421; and a plurality of clamping grooves 31 are arranged on the U-shaped rod 30 along the length direction thereof, the radial section of the clamping groove 31 is triangular and specifically located on the side of the axis of the U-shaped rod 30 away from the base 41, and further, a positioning protrusion 511 is arranged on the positioning pin 51 corresponding to the clamping groove 31, when the positioning pin 51 is inserted into the positioning hole 52 in place, the positioning protrusion 511 can be radially clamped into the clamping groove 31, at this time, the relative sliding of the U-shaped rod 30 and the movable seat 42 can be prevented; further, a positioning groove 411 matched with the positioning pin 51 is arranged on the base 41, the positioning groove 411 is arranged in plurality and coaxially arranged around the rotating shaft of the movable seat 42, when the positioning pin 51 is further inserted into the positioning groove 411 in place, at this time, the movable seat 42 and the base 41 can be relatively fixed and cannot move relatively, thereby the U-shaped rod 30 and the outer box body 10 can be fixed together, at this time, no matter the detector is in the carrying and moving state or the using state supported on the ground, the U-shaped rod 30 can keep the corresponding position immovable, thereby the stability in the supporting state or the moving state is ensured.

[0033] When it is necessary to adjust the relative distance between the connecting part of the U-shaped rod 30 and the rotating assembly 40, the positioning pin 51 is moved outward out of the positioning groove 411, at this time, the movable seat 42 and the U-shaped rod 30 can rotate relative to the outer box body 10, and if the positioning pin 51 is further moved so that the positioning protrusion 511 moves out of the clamping groove 31, at this time, the U-shaped rod 30 can slide on the movable seat 42 to adjust the length, thereby the ground clearance of the outer box body 10 or the distance between the connecting part and the top of the outer box body 10 can be conveniently adjusted.

[0034] In the embodiment, the end of the movable seat 42 away from the base 41 is coaxially connected with a movable plate 60, the movable plate 60 is perpendicular to the rotating shaft of the movable seat 42, a ring-shaped magnet 70 is coaxially arranged on the side wall of the movable plate 60 facing the movable seat 42, and the end surface of the ring-shaped magnet 70 facing the movable seat 42 is a spiral inclined surface 71; a magnet block 80 is fixed on the positioning pin 51, the magnet block 80 is always attached to the inclined surface of the ring-shaped magnet 70; in the positioning state of the positioning pin 51, rotating the movable plate 60 makes the magnet block 80 attached to the lower end of the spiral inclined surface 71 and the positioning pin 51 inserted into the positioning groove 411, and when the movable plate 60 is reversely rotated, the ring-shaped magnet 70 is synchronously rotated and relatively slides with the magnet block 80, and then the positioning pin 51 and the magnet block 80 are pulled out of the positioning groove 411 and the clamping groove 31 by the spiral inclined surface 71, so that the up-down overturning or sliding of the U-shaped rod 30 is adjusted by the forward and reverse rotation of the movable plate 60, and the operation adjustment of the detection personnel is more convenient.

[0035] In the embodiment, a recess 90 is coaxially arranged on the end surface of the movable seat 42 away from the base 41, and the positioning hole 52 is eccentrically arranged on the bottom surface of the recess 90; when assembled in place, one end of the ring-shaped magnet 70 extends into the recess 90, so as to play a guiding and limiting role on the ring-shaped magnet 70, and the overall structure of the rotating assembly 40 is more compact.

[0036] In the embodiment, the side wall edge of the movable plate 60 facing the base 41 is coaxially provided with a ring-shaped cofferdam 61, the ring-shaped cofferdam 61 is located outside the movable seat 42 and is in sliding attachment with the movable seat 42, and the side wall of the ring-shaped cofferdam 61 is provided with an avoiding groove 610 avoiding the U-shaped rod 30.

[0037] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

Claims

1. A portable COD detector, comprising an outer box body and a detector body arranged in the outer box body, a top of the outer box body being provided with an openable and closable box cover; characterized in that, Two arms of the U-shaped rod are respectively connected with left and right side walls of the outer box body through two rotating assemblies; the U-shaped rod is provided with two and respectively located at front and back ends of the outer box body; the U-shaped rod is in sliding connection with the rotating assembly; the positioning assembly is further arranged to position the U-shaped rod and prevent it from moving; when the U-shaped rod is rotated to a position downward, two arm connecting portions of the U-shaped rod are located below the outer box body.

2. The portable COD detector according to claim 1, characterized in that The rotating assembly is located at an upper portion of the outer box body.

3. The portable COD detector according to claim 2, characterized in that A spacing between two rotating shafts of the two U-shaped rods arranged side by side in front and back is less than a sum of lengths of two arms of the U-shaped rod.

4. The portable COD detector according to claim 1, characterized in that, The rotating assembly comprises a base fixedly connected with the outer box body and a movable seat in longitudinal rotation connection with the base; the movable seat is provided with a through hole through which the U-shaped rod passes; and the positioning assembly is arranged on the movable seat.

5. The portable COD detector according to claim 4, characterized in that The positioning assembly comprises a positioning pin parallel to a rotating shaft of the movable seat and a positioning hole arranged on an end face of an end of the movable seat away from the outer box body and matched with the positioning pin; the positioning hole penetrates through the movable seat and is in communication with the through hole; the U-shaped rod is provided with a plurality of clamping grooves along a length direction thereof; the positioning pin is provided with a positioning protrusion corresponding to the clamping grooves; the base is provided with a positioning groove matched with the positioning pin; and the positioning groove is provided with a plurality of and coaxially arranged around the rotating shaft of the movable seat.

6. The portable COD detector according to claim 5, characterized in that The end of the movable seat away from the base is coaxially rotationally connected with a movable plate; the movable plate is coaxially provided with a ring-shaped magnet on a side wall thereof facing the movable seat; an end face of the ring-shaped magnet facing the movable seat is a spiral inclined surface; the positioning pin is fixedly provided with a magnet block; and the magnet block is in adsorptive fit with the inclined surface of the ring-shaped magnet.

7. The portable COD detector according to claim 6, characterized in that The end face of the movable seat away from the base is coaxially provided with a recess; and the positioning hole is eccentrically arranged on a bottom face of the recess; when assembled in place, an end of the ring-shaped magnet extends into the recess.

8. The portable COD detector according to claim 6, characterized in that A ring-shaped cofferdam is coaxially arranged on a side wall edge of the movable plate facing the base; the ring-shaped cofferdam is located outside the movable seat; and the side wall of the ring-shaped cofferdam is provided with an avoiding groove avoiding the U-shaped rod.

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