Layered sampler for water quality detection

Abstract

The utility model discloses a stratified sampler for water quality detection, and relates to the technical field of water source stratified sampling. Comprising a connecting column, an upper connector, a lower connector and a mounting frame are fixedly arranged on the connecting column, a groove is formed in the upper connector, a protruding block is arranged on the lower connector, a sliding groove of the upper connector is matched with the protruding block of the lower connector, a sampling box is arranged on the mounting frame in a sliding mode, a sealing plug is arranged on the sampling box, and threads are arranged on the sealing plug. A transverse rod is in threaded connection with the threads, a sliding frame is fixedly arranged on the mounting frame, and the transverse rod is arranged on the sliding frame in a sliding mode. Through convenient connection of the connecting columns, a user can conveniently splice a plurality of connecting columns, so that the overall length of the connecting columns is changed, the sampling box can enter water layers with different depths, and the user can selectively mount the sampling box on the connecting columns at the corresponding positions according to the positions of the water layers; therefore, water layer conditions of different water sources are adapted.

Description

Technical Field

[0001] This application relates to the field of water source stratification sampling technology, specifically to a stratification sampler for water quality testing. Background Technology

[0002] Currently, water quality testing technology is widely used in environmental monitoring, drinking water safety, and other fields. Common water sampling methods typically involve sampling at a fixed depth or manually, but these methods have some limitations, especially in terms of sampling depth, precise control of sampling points, and water sample preservation.

[0003] While existing stratified samplers can sample different layers of water sources, their complex structure and inconvenient installation, coupled with the need for repeated sampling at different water layers, make them inefficient for sampling multiple water sources. Furthermore, the varying water layer distribution at different water sources necessitates adjustments to the sampling interval. Therefore, a novel stratified sampler is needed that adapts to different water layer conditions, allows for flexible adjustment, and improves sampling efficiency. Summary of the Invention

[0004] In view of the above-mentioned technical problems, this application solves the energy consumption problem in the prior art.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a stratified sampler for water quality testing, comprising a connecting column, wherein an upper connecting head, a lower connecting head, and a mounting frame are fixedly mounted on the connecting column, the upper connecting head is provided with a groove, the lower connecting head is provided with a protrusion, the groove of the upper connecting head cooperates with the protrusion of the lower connecting head, a sampling box is slidably mounted on the mounting frame, a sealing plug is provided on the sampling box, the sealing plug is provided with a thread, a crossbar is threadedly connected to the thread, a sliding frame is fixedly mounted on the mounting frame, and the crossbar is slidably mounted on the sliding frame.

[0006] To better realize this utility model, a pull rod is rotatably provided on the connecting column, and hooks are rotatably provided at both ends of the pull rod. The first end of the first spring is fixedly provided on the pull rod, and the second end of the first spring is fixedly provided on the protrusion of the connecting column. A groove is also provided on the upper connecting head, and a limit frame is slidably connected on the groove. A contact plate is fixedly provided on the limit frame, and an inclined surface and a contact spring are provided on the contact plate. The contact spring is also fixedly installed on the upper connecting head.

[0007] To better realize this utility model, a sliding rod is slidably arranged on the sliding frame, two lifting plates are fixedly arranged on the sliding rod, the sliding rod is fixedly connected to the crossbar, and a second spring is sleeved on the crossbar, with the two ends of the second spring being fixedly connected to the sliding rod and the sliding frame respectively.

[0008] To better realize this utility model, the sliding rod is further provided with an upper connecting plate, the upper connecting plate is rotatably provided with an upper connecting shaft, the upper connecting shaft is slidably provided with an intermediate buffer shaft, the mounting bracket is fixedly provided with a lower connecting shaft, the lower connecting shaft is rotatably provided with a lower connecting plate, the lower connecting plate is provided with a sliding groove, and the upper connecting shaft slides on the sliding groove.

[0009] To better realize this utility model, the intermediate buffer shaft is further rotatably mounted on the lower connecting shaft, and a third spring is sleeved on the intermediate buffer shaft. The two ends of the third spring are respectively located on the upper connecting shaft and the intermediate buffer shaft near the lower connecting shaft.

[0010] To better realize this utility model, an inner sliding shaft is fixedly provided on the connecting column, a drive plate is slidably provided on the inner sliding shaft, an inner spring is fixedly provided on the drive plate, the inner spring is sleeved on the inner sliding shaft, the inner spring is also fixedly connected to the connecting column, the drive plate is also slidably connected to the first spring, and a push block is provided on the pull rod.

[0011] The technical solution provided in this application has the following advantages compared with the prior art:

[0012] 1. This application provides a convenient connection by setting up connecting columns, which allows users to splice multiple connecting columns together to change the overall length of the connecting columns. This enables the sampling box to enter water layers of different depths, and users can selectively install the sampling box on the connecting columns at the corresponding positions according to the location of the water layer, thereby adapting to the water layer conditions of different water sources. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this application;

[0014] Figure 2 for Figure 1 Enlarged view of the local structure at point A;

[0015] Figure 3 for Figure 1 Enlarged view of the local structure at point B;

[0016] Figure 4 This is a schematic diagram of the connecting plate in this application;

[0017] Figure 5 This is a schematic diagram of the connector structure in this application;

[0018] Figure 6 This is a schematic diagram of the contact plate structure of this application;

[0019] In the diagram: 101-Connecting column; 102-Upper connector; 103-Lower connector; 104-Pull rod; 105-First spring; 106-Mounting bracket; 107-Sampling box; 108-Sliding frame; 109-Crossbar; 110-Sealing plug; 111-Control panel; 112-Lifting plate; 113-Second spring; 114-Sliding rod; 115-Upper connecting plate; 116-Upper connecting shaft; 117-Third spring; 118-Lower connecting plate; 119-Intermediate buffer shaft; 120-Lower connecting shaft; 121-Drive plate; 122-Inner spring; 123-Inner sliding shaft; 124-Contact plate; 125-Contact spring; 126-Limiting frame. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] like Figures 1 to 6 As shown, a stratified sampler for water quality testing includes a connecting column 101. An upper connecting head 102, a lower connecting head 103, and a mounting bracket 106 are fixedly mounted on the connecting column 101. The upper connecting head 102 has a groove, and the lower connecting head 103 has a protrusion. The groove of the upper connecting head 102 cooperates with the protrusion of the lower connecting head 103. A sampling box 107 is slidably mounted on the mounting bracket 106. A sealing plug 110 is provided on the sampling box 107. The sealing plug 110 has a thread, and a crossbar 109 is threadedly connected to the thread. A sliding frame 108 is fixedly mounted on the mounting bracket 106, and the crossbar 109 is slidably mounted on the sliding frame 108.

[0023] Specifically, the number of connecting columns 101 is selected according to the depth of the water source to be sampled on site. The upper and lower ends of multiple connecting columns 101 are connected to each other to form an extended connecting column 101, which can adapt to various water source conditions. This allows the sampling box 107 to follow the connecting column 101 to different depths and perform stratified sampling at different locations of the water source. When the water layer height difference between two adjacent sampling boxes 107 is large, the sampling box 107 does not need to be installed between these distances; only the connecting column 101 needs to be connected. This allows the user to easily adjust whether the sampling box 107 is installed on the mounting frame 106 and on which sampling box 107 it is installed according to the actual water layer conditions.

[0024] After the sampling box 107 reaches the predetermined water layer, the pull rods 104 on multiple connecting columns 101 are connected to each other via hooks, thereby controlling the movement of the uppermost pull rod 104 on the connecting column 101. This, in turn, drives the crossbar 109 to control the sealing plug 110 to leave or close the sampling box 107, thus realizing the sampling operation of the sampling box 107. In the initial state, the sealing plug 110 is closed on the sampling box 107 to prevent the sampling box 107 from taking samples before reaching the predetermined water layer. Furthermore, the sealing effect of the sealing plug 110 on the sampling box 107 is stabilized by structures such as the second spring 113.

[0025] like Figure 1 , Figure 5 and Figure 6 As shown, a pull rod 104 is rotatably mounted on the connecting column 101, and hooks are rotatably mounted on both ends of the pull rod 104. The first end of the first spring 105 is fixedly mounted on the pull rod 104, and the second end of the first spring 105 is fixedly mounted on the protrusion of the connecting column 101. A groove is also provided on the upper connector 102, and a limit frame 126 is slidably connected to the groove. A contact plate 124 is fixedly mounted on the limit frame 126, and an inclined surface and a contact spring 125 are provided on the contact plate 124. The contact spring 125 is also fixedly mounted on the upper connector 102.

[0026] Specifically, when connecting multiple connecting posts 101, the protrusion of the lower connector 103 of the upper connecting post 101 is aligned with the groove of the upper connector 102 of the lower connecting post 101. Then, the lower connector 103 of the upper connecting post 101 is pushed so that it slides into the groove of the upper connector 102 of the lower connecting post 101. When the protrusion of the lower connector 103 enters the groove of the upper connector 102, the protrusion of the lower connector 103 will contact the contact plate 124 on the upper connector 102. Through the inclined surface of the contact plate 124, the protrusion of the lower connector 103 presses the contact plate 124, the contact plate 124 compresses the contact spring 125, and pushes the limiting frame 126 to slide on the upper connector 102. Thus, after installation, the contact spring 125 pushes the contact plate 124 to make close contact with the lower connector 103, thereby making the lower connector 103 and the upper connector 102 in close contact, improving the stability of the connection between two adjacent connecting posts 101.

[0027] After multiple connecting posts 101 are connected through upper connector 102 and lower connector 103, the rotation angle of the hook on the pull rod 104 is controlled, and one of the pull rods 104 is pulled to slide on the connecting post 101, so that the hook on the pull rod 104 is hooked on the hook of another pull rod 104. Then the pull rod 104 is released, so that the two pull rods 104 are tightly connected by the hook under the action of the first spring 105.

[0028] like Figures 2 to 4 As shown, a sliding rod 114 is slidably mounted on the sliding frame 108, and two lifting plates 112 are fixedly mounted on the sliding rod 114. The sliding rod 114 is fixedly connected to the crossbar 109, and a second spring 113 is sleeved on the crossbar 109. The two ends of the second spring 113 are fixedly connected to the sliding rod 114 and the sliding frame 108, respectively.

[0029] Specifically, the crossbar 109 is connected to the sealing plug 110 by threads. During installation, the sealing plug 110 is inserted into the installation position of the crossbar 109, and the control plate 111 on the sealing plug 110 is rotated to make the sealing plug 110 rotate on the crossbar 109. The sealing plug 110 is installed on the crossbar 109 by means of thread engagement. When installing the sampling box 107, first control the lifting plates 112 on both sides to lift the sliding rod 114, causing the sliding rod 114 to slide upward on the sliding frame 108. This pushes the crossbar 109 and the sealing plug 110 upward. Then, install the sampling box 107, aligning the slider on the sampling box 107 with the groove on the mounting frame 106, and push the sampling box 107 into the mounting frame 106. Then, release the lifting plates 112. Under the action of the second spring 113, the sliding rod 114, crossbar 109, and sealing plug 110 return to their original positions, and the crossbar 109 pushes the sealing plug 110 into the entrance of the sampling box 107, sealing the entrance. The sealing capacity of the sealing plug 110 is fixed by the second springs 113 on both sides of the crossbar 109.

[0030] An upper connecting plate 115 is rotatably mounted on the sliding rod 114, an upper connecting shaft 116 is rotatably mounted on the upper connecting plate 115, an intermediate buffer shaft 119 is slidably mounted on the upper connecting shaft 116, a lower connecting shaft 120 is fixedly mounted on the mounting bracket 106, a lower connecting plate 118 is rotatably mounted on the lower connecting shaft 120, a sliding groove is provided on the lower connecting plate 118, and the upper connecting shaft 116 slides on the sliding groove.

[0031] The intermediate buffer shaft 119 is rotatably mounted on the lower connecting shaft 120. A third spring 117 is sleeved on the intermediate buffer shaft 119. The two ends of the third spring 117 are respectively located on the upper connecting shaft 116 and the end of the intermediate buffer shaft 119 near the lower connecting shaft 120.

[0032] Specifically, the mounting bracket 106 is equipped with two sets of upper connecting plates 115, upper connecting shafts 116, third springs 117, and intermediate buffer shafts 119, located on both sides of the lower connecting plate 118. Initially, the third spring 117 on the intermediate buffer shaft 119 pushes the upper connecting shaft 116 to the upper end of the upper groove on the lower connecting plate 118. This causes the upper connecting shaft 116 to push the upper connecting plate 115 to rotate on the sliding rod 114. Through the action of the second spring 113 on the sliding rod 114, the upper connecting plate 115 pushes the upper connecting shaft 116, causing the upper end of the lower connecting plate 118 to move away from the sampling box 107. The lower connecting plate 118 approaches and contacts the end of the drive plate 121 closest to the sampling box 107. Figure 4 The state shown.

[0033] like Figure 4As shown, an inner sliding shaft 123 is fixedly installed on the connecting column 101, a drive plate 121 is slidably installed on the inner sliding shaft 123, an inner spring 122 is fixedly installed on the drive plate 121, the inner spring 122 is sleeved on the inner sliding shaft 123, the inner spring 122 is also fixedly connected to the connecting column 101, the drive plate 121 is also slidably connected to the first spring 105, and a push block is provided on the pull rod 104.

[0034] Specifically, when sampling is required, the control lever 104 slides on the connecting post 101. The push block of the lever 104 pushes the drive plate 121 to slide upward on the connecting post 101 and the inner sliding shaft 123, compressing the inner spring 122. When the drive plate 121 moves, it pushes the lower connecting plate 118, causing the lower connecting plate 118 to rotate on the lower connecting shaft 120. The sliding groove at the upper end of the lower connecting plate 118 drives the upper connecting shaft 116 to push the upper connecting plate 115, because the second spring 113 and The frictional resistance of the sealing plug 110 on the sampling box 107 causes the upper connecting shaft 116 to slide downward on the groove at the upper end of the lower connecting plate 118 and compress the third spring 117 on the intermediate buffer shaft 119. When the elastic force of the third spring 117 is large enough, the upper connecting shaft 116 will push the upper connecting plate 115 closer to one end of the lower connecting plate 118, thereby pushing the sliding rod 114 upward on the sliding frames 108 on both sides. The second spring 113 is compressed, and when the sliding rod 114 moves upward, it pushes the crossbar 109. The crossbar 109 drives the sealing plug 110 to disengage from the sampling box 107, thereby exposing the inlet of the sampling box 107. The water to be tested at this depth will enter the sampling box 107 through this inlet for sampling. After sampling, the pull rod 104 is released. Under the action of the first spring 105, the pull rod 104 is reset. The drive plate 121 is reset under the action of the inner spring 122. The lower connecting plate 118 loses the thrust of the drive plate 121. Thus, under the action of the third spring 117 and the second spring 113, the lower connecting plate 118, the upper connecting plate 115, the upper connecting shaft 116, the sliding rod 114 and the crossbar 109 are reset. Thus, the crossbar 109 drives the sealing plug 110 to approach and block the inlet of the sampling box 107, sealing the sampling box 107 and preventing the sampled water source from being contaminated during the movement due to the loosening of the sealing plug 110, i.e., water from other water layers entering the sampling box 107.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A stratified sampler for water quality testing, comprising a connecting column (101), characterized in that: The connecting column (101) is fixedly provided with an upper connector (102), a lower connector (103) and a mounting bracket (106). The upper connector (102) is provided with a groove, and the lower connector (103) is provided with a protrusion. The groove of the upper connector (102) cooperates with the protrusion of the lower connector (103). A sampling box (107) is slidably provided on the mounting bracket (106). A sealing plug (110) is provided on the sampling box (107). The sealing plug (110) is provided with a thread, and a crossbar (109) is threadedly connected to the thread. A sliding bracket (108) is fixedly provided on the mounting bracket (106), and the crossbar (109) is slidably provided on the sliding bracket (108).

2. The stratified sampler for water quality testing according to claim 1, characterized in that: A pull rod (104) is rotatably mounted on the connecting column (101). Hooks are rotatably mounted on both ends of the pull rod (104). The first end of a first spring (105) is fixedly mounted on the pull rod (104). The second end of the first spring (105) is fixedly mounted on the protrusion of the connecting column (101). A groove is also provided on the upper connector (102). A limit frame (126) is slidably connected to the groove. A contact plate (124) is fixedly mounted on the limit frame (126). An inclined surface and a contact spring (125) are provided on the contact plate (124). The contact spring (125) is also fixedly mounted on the upper connector (102).

3. A stratified sampler for water quality testing according to claim 1, characterized in that: A sliding rod (114) is slidably mounted on the sliding frame (108). Two lifting plates (112) are fixedly mounted on the sliding rod (114). The sliding rod (114) is fixedly connected to the crossbar (109). A second spring (113) is sleeved on the crossbar (109). The two ends of the second spring (113) are fixedly connected to the sliding rod (114) and the sliding frame (108) respectively.

4. A stratified sampler for water quality testing according to claim 3, characterized in that: An upper connecting plate (115) is rotatably mounted on the sliding rod (114), an upper connecting shaft (116) is rotatably mounted on the upper connecting plate (115), an intermediate buffer shaft (119) is slidably mounted on the upper connecting shaft (116), a lower connecting shaft (120) is fixedly mounted on the mounting bracket (106), a lower connecting plate (118) is rotatably mounted on the lower connecting shaft (120), a sliding groove is provided on the lower connecting plate (118), and the upper connecting shaft (116) slides on the sliding groove.

5. A stratified sampler for water quality testing according to claim 4, characterized in that: The intermediate buffer shaft (119) is rotatably mounted on the lower connecting shaft (120). A third spring (117) is sleeved on the intermediate buffer shaft (119). The two ends of the third spring (117) are respectively located on the upper connecting shaft (116) and the intermediate buffer shaft (119) near the lower connecting shaft (120).

6. A stratified sampler for water quality testing according to claim 1, characterized in that: An inner sliding shaft (123) is fixedly installed on the connecting column (101), a drive plate (121) is slidably installed on the inner sliding shaft (123), an inner spring (122) is fixedly installed on the drive plate (121), the inner spring (122) is sleeved on the inner sliding shaft (123), the inner spring (122) is also fixedly connected to the connecting column (101), the drive plate (121) is also slidably connected to the first spring (105), and a push block is provided on the pull rod (104).

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