A sampling device for sewage detection

Abstract

The present invention relates to the technical field of sewage detection, specifically a sampling device for sewage detection, including a hoisting frame and a sampling frame installed at the bottom of the hoisting frame; the hoisting frame is provided with a mounting base, a vertical lifting frame installed on the mounting base, and a lifting hanger arranged on the vertical lifting frame, the bottom of the lifting hanger is provided with a hanger base plate, and the sampling frame is installed on the hanger base plate; the sampling frame is provided with a rack main frame, a supporting outer frame arranged on the rack main frame, and a sliding frame installed at the bottom of the supporting outer frame, the sampling frame also includes a sampling component, the sampling component is arranged in the inner space of the supporting outer frame and is slidably installed at the bottom of the rack main frame, and the side edge of the rack main frame is provided with a driver for driving the sampling component to move. The present invention realizes accurate sampling of sewage in the target water area, improves the accuracy and representativeness of sampling, and can implement multi-point sampling, so that the sample data is more sufficient.

Description

Technical Field

[0001] The invention relates to the technical field of sewage detection, in particular to a sampling device for sewage detection. Background Art

[0002] Sewage contains a large amount of harmful substances, such as heavy metals, organic matter, bacteria, etc. If it is discharged directly into the environment without effective treatment, it will cause serious pollution to water, soil and air, and thus threaten the survival and health of humans and other organisms. In order to ensure the safety of the water environment and people's health, it is particularly important to conduct regular and accurate testing of sewage.

[0003] A Chinese patent (authorization announcement number: CN220583858U) discloses a sewage sampling device for detection, which includes a mounting frame, a pumping device, and two anti-blocking devices for preventing the input end of the pumping device from being blocked. A driving device is installed on the mounting frame, the pumping device is fixedly connected to the driving device, and the two anti-blocking devices are respectively fixedly connected to both sides of the pumping device.

[0004] However, the actual operation of this patent has certain defects, and the sampling accuracy is questionable. In particular, when sampling is required on the surface of a water body, the water layer below the liquid surface is often extracted, resulting in certain errors in the collected samples. At the same time, it is impossible to collect multiple samples, resulting in fewer samples, which is not conducive to sample analysis. Summary of the invention

[0005] The object of the present invention is to provide a sampling device for sewage detection to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A sampling device for sewage detection comprises a hanging frame and a sampling frame installed at the bottom end of the hanging frame; the hanging frame is provided with a mounting base, a vertical lifting frame installed on the mounting base and a lifting hanger arranged on the vertical lifting frame, the bottom of the lifting hanger is provided with a hanger base plate, and the sampling frame is installed on the hanger base plate; the sampling frame is provided with a rack main frame, a supporting outer frame arranged on the rack main frame and a sliding frame installed at the bottom of the supporting outer frame, the sampling frame also includes a sampling component, the sampling component is arranged in the inner space of the supporting outer frame and is slidably installed at the bottom of the rack main frame, the side edge of the rack main frame is provided with a driver for driving the sampling component to move, and a sampling bottle is installed in the sampling component; the bottom of the sampling component is built on the sliding frame, the sliding frame is swingably installed in the frame body of the supporting outer frame, and the side edge of the supporting outer frame is provided with a swinging driving frame for driving the sampling component to swing.

[0008] As a further solution of the present invention: the main frame of the rack includes a main frame shell, side frame plates arranged on both sides of the inner frame wall of the main frame shell, and inner frame rails installed on the side frame plates. A drive mounting frame is also set up in the main frame of the rack, and a horizontal adjustment screw rod is set up on the drive mounting frame. The horizontal adjustment screw rod runs through the frame of the overall main frame shell. A threaded sleeve is installed on the top of the sampling assembly, and the threaded sleeve is sleeved on the rod body of the horizontal adjustment screw rod. A coupling transmission is installed on the driving end of the driver, and the power input end of the horizontal adjustment screw rod is connected to the driver through the coupling transmission.

[0009] As a further solution of the present invention: the sampling assembly is composed of a plurality of sampling brackets, and a sampling bottle positioning bracket is installed at the bottom of each of the sampling brackets; the sampling bottle positioning bracket includes a bracket top plate and a hanging frame installed on the bottom plane of the bracket top plate, a connecting head is provided at the top of the hanging frame, the threaded sleeve is installed on the connecting head, a rotating shaft is provided on the hanging frame, and the sampling bottle positioning bracket is installed on the rotating shaft.

[0010] As a further solution of the present invention: side edge plates are provided on both sides of the bracket top plate, a lifting slider is installed on the side edge plates, a sliding wire groove is provided on the side edge of the lifting slider, and the sliding wire groove is embedded in the corresponding inner frame track.

[0011] As a further solution of the present invention: the main body of the sliding frame is a sliding bottom rod, the ends of the sliding bottom rod are provided with swing supports, the top of the swing supports is provided with a sliding frame support plate, a rotating straight shaft is installed on the side wall of the frame supporting the outer frame, and the sliding frame support plate is installed on the rotating straight shaft.

[0012] As a further solution of the present invention: the sampling bottle positioning bracket includes a hanging frame bottom plate, side wing brackets arranged on both sides of the hanging frame bottom plate and a locking bolt installed on the top of the side wing bracket, the locking bolt is installed on the rotating shaft, the bottom end of the side wing bracket is installed with a sampling bottle clamp, and a sampling bottle loading interval is formed between the side wing brackets on both sides.

[0013] As a further solution of the present invention: the sampling bottle clamp includes a bracket base plate installed at the bottom end of the side wing bracket and a clamping plate arranged on the bracket base plate, and clamping grooves that are connected to each other are arranged between the clamping plates on both sides; a concave locking wire groove is arranged in the circle of the clamping groove; a side buckle is arranged on the plate surface of the clamping plate, and a side card is installed on the side buckle.

[0014] As a further solution of the present invention: connecting support blocks are arranged at both ends of the bracket bottom plate, and rod penetration grooves are arranged in the connecting support blocks, and the rod penetration grooves are engaged with the rod body of the sliding bottom rod on the corresponding side.

[0015] As a further solution of the present invention: the swing drive frame includes a swing support on the side wall of the supporting outer frame, a swing base plate arranged on the swing support, and a mounting sleeve installed in the swing base plate, a driving barrel is arranged in the mounting sleeve, an electric control driving rod is installed at the driving end of the driving barrel, a pulling head is arranged at the rod end of the electric control driving rod, and the pulling head is connected to the sliding bottom rod through a connecting bolt.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Flexible swing of the sampling assembly: The sampling assembly is installed on a swingable sliding frame. By adjusting the swing drive frame, the sliding frame can be folded to a horizontal state, so that the center line of the bottle mouth of the sampling bottle is aligned with the sampling horizontal coordinate line. It is particularly suitable for surface water quality testing to ensure high accuracy of sample collection.

[0018] 2. Adapting to inclined water layers: In view of the terrain characteristics of inclined water layers, the present invention can adjust the inclination angle of the sampling component so that the water entry direction of the sampling bottle is consistent with the inclination angle of the water layer, thereby meeting the experimental needs under special environments.

[0019] 3. Precise horizontal movement: The driver cooperates with the transmission device to achieve precise horizontal movement of the sampling component, allowing multi-point sampling in the same depth water layer, expanding the sample collection range, and improving the representativeness and accuracy of the sample.

[0020] These key points together constitute the innovative design of the present invention in the field of water quality sampling, which achieves efficient and accurate water quality sample collection through flexible swinging, tilt adjustment and precise horizontal movement.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings herein are incorporated into and constitute a part of the specification to illustrate embodiments consistent with the present application and are used together with the specification to explain the principles of the present application. At the same time, these drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for those skilled in the art by referring to specific embodiments.

[0023] Figure 1 This is a schematic diagram of the overall structure of a sampling device for sewage detection provided in an embodiment of the present invention.

[0024] Figure 2 A schematic diagram of the structure of the sampling rack provided in the embodiment of the present invention Figure 1 .

[0025] Figure 3A schematic diagram of the structure of the sampling rack provided in the embodiment of the present invention Figure 2 .

[0026] Figure 4 A schematic diagram of the installation of the sampling assembly provided in an embodiment of the present invention.

[0027] Figure 5 A schematic diagram of the structure of the sampling component provided in the embodiment of the present invention Figure 1 .

[0028] Figure 6 For the present invention Figure 5 Schematic diagram of the structure of area A in the middle.

[0029] Figure 7 A schematic diagram of the structure of the sampling component provided in the embodiment of the present invention Figure 2 .

[0030] Figure 8 For the present invention Figure 7 Schematic diagram of the structure of area B.

[0031] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure of the middle C region.

[0032] Fig.10 For the present invention Figure 5 Schematic diagram of the structure of region D in the middle.

[0033] Fig.11 For the present invention Figure 2 Schematic diagram of the structure of area E in the middle.

[0034] In the figure: 11, hoisting rack; 12, sampling rack; 13, mounting base; 14, vertical lifting rack; 15, lifting hanger; 16, hanger base plate; 21, rack main frame; 22, supporting outer frame; 23, sliding frame; 24, sampling assembly; 25, driver; 26, swing drive rack; 31, main frame shell; 32, drive mounting rack; 33, wing frame plate; 34, inner frame track; 35, horizontal adjustment screw rod; 36, coupling transmission; 37, threaded sleeve; 41, sampling bracket; 42, sampling bottle positioning bracket; 43, bracket top plate; 44, hoisting frame; 45, rotating shaft; 46, connector; 51, side edge plate; 52. Lifting slider; 53. Sliding wire groove; 61. Sliding frame support plate; 62. Swinging support head; 63. Rotating straight axis; 64. Sliding bottom rod; 71. Hanging frame bottom plate; 72. Side bracket; 73. Locking bolt; 74. Sampling bottle clamp; 75. Sampling bottle loading area; 81. Bracket bottom plate; 82. Clamping plate; 83. Clamping groove; 84. Concave locking wire groove; 85. Side buckle; 86. Side card; 91. Connecting support block; 92. Rod groove; 101. Swinging support; 102. Swinging base plate; 103. Mounting sleeve; 104. Driving barrel; 105. Electric control driving rod; 106. Pulling head; 107. Connecting bolt. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0036] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0038] In one embodiment, see Figures 1 to 3, provides a sampling device for sewage detection, including a hanging frame 11 and a sampling frame 12 installed at the bottom of the hanging frame 11; the hanging frame 11 is provided with a mounting base 13, a vertical lifting frame 14 installed on the mounting base 13, and a lifting hanger 15 arranged on the vertical lifting frame 14, and the bottom of the lifting hanger 15 is provided with a hanger base plate 16, and the sampling frame 12 is installed on the hanger base plate 16; the sampling frame 12 is provided with a frame main frame 21, a supporting outer frame 22 arranged on the frame main frame 21, and a The sampling rack 12 further comprises a sampling assembly 24, wherein the sampling assembly 24 is arranged in the inner space of the supporting outer frame 22 and is slidably mounted on the bottom of the rack main frame 21, and a driver 25 for driving the sampling assembly 24 to move is arranged on the side edge of the rack main frame 21, and a sampling bottle is installed in the sampling assembly 24; the bottom of the sampling assembly 24 is mounted on the sliding frame 23, and the sliding frame 23 is swingably mounted in the frame body of the supporting outer frame 22, and a swing driving frame 26 for driving the sampling assembly 24 to swing is arranged on the side edge of the supporting outer frame 22.

[0039] The hoisting frame 11 is made of high-strength stainless steel and has sufficient load-bearing capacity and stability. A mounting base 13 is set on the top of the hoisting frame 11 to fix the vertical lifting frame 14. The vertical lifting frame 14 is driven by electric or hydraulic means to realize the vertical movement of the lifting hanger 15. The lifting hanger 15 uses precise guide profiles to ensure that the lifting process is smooth and without shaking. A hanger base plate 16 is welded to the bottom of the lifting hanger 15, and the sampling frame 12 is installed on the hanger base plate 16. The sampling frame 12 is firmly connected to the hanger base plate 16 by bolts and other fasteners.

[0040] The sampling rack 12 is mainly composed of a rack main frame 21, a support outer frame 22 and a sliding frame 23. The rack main frame 21 is used as the supporting skeleton of the entire sampling structure. It is welded with square tubes and has a stable structure. The support outer frame 22 is welded on the rack main frame 21 to form a semi-enclosed space for positioning the internal sampling component 24; the sampling component 24 is installed in the space area inside the support outer frame 22, and is slidably connected to the bottom of the rack main frame 21 through a guide rail. A plurality of sampling bottles are arranged in the sampling component 24, and the sampling bottles are equipped with an electric-controlled lifting rod and a reset spring. The opening and closing of the sampling bottle mouth cover is controlled by lifting and releasing operations to sample water quality samples.

[0041] The device described in this embodiment can be installed on a ship or a hoisting vehicle at the lakeside. The device can be transported to the water area to be tested by such traction tools, and the sampling rack 12 can be lowered to a suitable water depth by the hoisting rack 11. The vertical lifting frame 14 is started, and the vertical position of the sampling frame 12 is adjusted so that the sampling assembly 24 is at the target sampling depth, so as to collect samples of the water layer at the depth; the conventional sampling method is a vertical sampling method, so that the water quality is extracted and poured from the bottom to the top, and the water layer below the liquid surface is often extracted, and the sample has a certain error, and cannot fully reflect the condition of the water layer at the depth, especially when the water quality of the surface is detected, the error is particularly obvious; therefore, the sampling assembly 24 is designed in this embodiment to be installed on the sliding frame 23, supporting the semi-frame structure of the outer frame 22, and the sliding frame 23 is installed in a swinging manner, which can be folded on the non-enclosed side; the swing driving frame 26 is started, and the swing angle of the sampling assembly 24 is adjusted, so that the sliding frame 23 is folded to a horizontal state, so that the center line of the bottle mouth of the sampling bottle is located on the horizontal coordinate line of the sampling, and when the water quality of the surface is detected, the bottle mouth is located on the surface of the water body, so that the collected water quality samples have high accuracy and can accurately reflect the water quality conditions at different depth coordinates.

[0042] At the same time, affected by the terrain, some lake areas are often inclined water layers. This embodiment can also adjust the inclination angle of the sampling component 24 along the inclination angle of the water layer so that the water inlet direction of the sampling bottle matches the inclination angle of the water layer to meet the corresponding experimental requirements.

[0043] The driver 25 is installed on the side edge of the main frame 21 of the rack, and is connected to the sampling assembly 24 through a transmission device to achieve precise horizontal movement of the sampling assembly 24, so that multi-point sampling can be performed in the water layer area at the same depth to increase the sample collection range.

[0044] In one embodiment, see Figures 3 to 6 This embodiment is a further design of the above embodiment. On this basis, the specific implementation structure of the installation and movement of the sampling component 24 is designed as follows:

[0045] The rack main frame 21 includes a main frame shell 31, side wing frame plates 33 arranged on both sides of the inner frame wall of the main frame shell 31, and an inner frame rail 34 installed on the side wing frame plates 33. A drive mounting frame 32 is also set up in the rack main frame 21, and a horizontal adjustment screw rod 35 is set up on the drive mounting frame 32. The horizontal adjustment screw rod 35 runs through the frame of the overall main frame shell 31. A threaded sleeve 37 is installed on the top of the sampling component 24, and the threaded sleeve 37 is sleeved on the rod body of the horizontal adjustment screw rod 35. A coupling transmission 36 is installed at the driving end of the driver 25, and the power input end of the horizontal adjustment screw rod 35 is connected to the driver 25 through the coupling transmission 36.

[0046] In this embodiment, the main frame 21 of the rack adopts a main frame shell 31 made of high-strength stainless steel. The side wing frame plates 33 symmetrically arranged on both sides not only enhance the overall rigidity of the main frame, but also serve as the reference surface for installing the inner frame track 34. The track adopts a precisely machined linear guide rail to ensure the smooth operation of the sliding parts; the horizontal adjustment screw 35 adopts a high-precision ball screw, and the threaded sleeve 37 installed on the top of the sampling component 24 is closely matched with the horizontal adjustment screw 35. The driver 25 uses a stepper motor, and its driving end is connected to the power input end of the horizontal adjustment screw 35 through a coupling transmission 36. The coupling transmission 36 has a reduction ratio adjustment function, and the output speed and torque can be adjusted as needed to match the requirements of different sampling tasks.

[0047] The sampling assembly 24 is composed of a plurality of sampling brackets 41, and a sampling bottle positioning bracket 42 is installed at the bottom of each sampling bracket 41; the sampling bottle positioning bracket 42 includes a bracket top plate 43 and a hanging frame 44 installed on the bottom plane of the bracket top plate 43, a connector 46 is provided on the top of the hanging frame 44, the threaded sleeve 37 is installed on the connector 46, a rotating shaft 45 is provided on the hanging frame 44, and the sampling bottle positioning bracket 42 is installed on the rotating shaft 45. Side edge plates 51 are provided on both sides of the bracket top plate 43, and a hanging slider 52 is installed on the side edge of the hanging slider 52, and a sliding wire groove 53 is provided on the side edge of the hanging slider 52, and the sliding wire groove 53 is embedded and installed in the corresponding inner frame track 34.

[0048] The sampling device for sewage detection in this embodiment has a sampling assembly 24 composed of a plurality of independent sampling brackets 41, each of which is independently used for positioning the sampling bottle to achieve the function of sampling multiple bottles simultaneously or sequentially. A sampling bottle positioning bracket 42 is installed at the bottom of each sampling bracket 41, and the bracket is composed of a bracket top plate 43 and a hanging frame 44; the bracket top plate 43 serves as a supporting platform, and a connector 46 is designed on the top of the hanging frame 44, and the connector 46 is connected to the threaded sleeve 37 on the horizontal adjustment screw rod 35 to ensure that the hanging frame 44 can move accurately with the rotation of the screw rod. Side edge plates 51 are also provided on both sides of the bracket top plate 43, and hanging sliders 52 are installed on the side edge plates 51. These hanging sliders 52 slide along the inner frame track 34, and are tightly fitted with the inner frame track 34 through the sliding grooves 53 on the side edges, ensuring the stability and accuracy of the sampling bracket 41 during horizontal movement.

[0049] A rotating shaft 45 is provided on the hanging frame 44, and the sampling bottle positioning bracket 42 is installed on the hanging frame 44 through the rotating shaft 45, allowing the sampling bottle positioning bracket 42 to be folded and adjusted, thereby adjusting the working angle of the sampling bottle. During operation, the sampling bottle positioning bracket 42 is folded to a horizontal state, thereby accurately sampling the water quality of the water layer.

[0050] In one embodiment, see Figure 3 , Figure 7 and Figure 8 This embodiment is a further design of the above embodiment. On this basis, the sampling assembly 24 and the sliding frame 23 are installed and implemented. The design of this embodiment is as follows:

[0051] The main body of the sliding frame 23 is a sliding bottom rod 64, and the ends of the sliding bottom rod 64 are provided with swinging supports 62, and the top of the swinging supports 62 is provided with a sliding frame support plate 61, and a rotating straight shaft 63 is installed on the side wall of the frame body of the supporting outer frame 22, and the sliding frame support plate 61 is installed on the rotating straight shaft 63. The sampling bottle positioning bracket 42 is arranged in the frame inner area of ​​the sliding frame 23, and its bottom is connected to the sliding bottom rod 64.

[0052] The sampling bottle positioning bracket 42 includes a hanging frame bottom plate 71, side wing brackets 72 arranged on both sides of the hanging frame bottom plate 71, and a locking bolt 73 installed on the top of the side wing bracket 72. The locking bolt 73 is installed on the rotating shaft 45. The bottom end of the side wing bracket 72 is installed with a sampling bottle clamp 74, and a sampling bottle loading area 75 is formed between the side wing brackets 72 on both sides. The sampling bottle clamp 74 includes a bracket bottom plate 81 installed on the bottom end of the side wing bracket 72 and a clamping plate 82 arranged on the bracket bottom plate 81. A clamping groove 83 that docks with each other is provided between the clamping plates 82 on both sides;

[0053] The hanging frame bottom plate 71, the side wing bracket 72 and the sampling bottle clamp 74 are combined into a sampling bottle loading section 75 for accommodating the sampling bottle. The hanging frame bottom plate 71 is used as the hanging foundation of the entire sampling bottle positioning bracket 42, and is made of a sturdy and durable material, such as stainless steel or aluminum alloy, to ensure stability and reliability during the sampling process. The top of the side wing bracket 72 is connected to the locking bolt 73 through the rotating shaft 45, so that the entire side wing bracket 72 can be rotated and locked within a certain range. The sampling bottle clamp 74: installed at the bottom end of the side wing bracket 72, including a bracket bottom plate 81 and a clamping plate 82, the bracket bottom plate 81 is firmly connected to the side wing bracket 72, and the clamping plate 82 is installed on the bracket bottom plate 81 by bolts or other fastening methods. The clamping plates 82 on both sides are arranged oppositely to form a clamping groove 83 for clamping the sampling bottle. The bottle of the sampling bottle is loaded in the sampling bottle loading section 75, and its bottleneck position is positioned by the clamping groove 83, and the sampling bottle mouth is exposed.

[0054] In one case of this embodiment, see Figure 8 and Fig. 9The clamping groove 83 is provided with a concave snap-fitting groove 84 in the circle; the clamping groove 83 is designed as a groove matching the shape of the sampling bottle to increase the stability and firmness of the clamping. A concave snap-fitting groove 84 is also provided in the circle of the clamping groove 83, and the groove is used to match the convex line or groove on the sampling bottle to further prevent the sampling bottle from shaking or falling off during transportation.

[0055] In one case of this embodiment, see Fig. 9 The clamping plate 82 is provided with side buckles 85 on the plate surface, and side cards 86 are installed on the side buckles 85. In order to increase the flexibility and reliability of clamping, the clamping plate 82 is provided with side buckles 85 on the plate surface, and side cards 86 are installed on the side buckles 85; the side cards 86 can be fine-tuned according to the size and shape of the sampling bottle to ensure the tightness and stability of the clamping.

[0056] Because the sampling process itself requires multiple movements and adjustments, and will also be impacted by lake water, this embodiment ensures that the sampling bottle remains stable during loading and transportation through a precise clamping and fixing mechanism, avoiding sampling errors caused by shaking or falling off.

[0057] In one embodiment, see Figure 2 , Figure 5 , Fig.10 and Fig.11 This embodiment is a further design of the above embodiment. On this basis, the sampling assembly 24 and the sliding frame 23 are installed and implemented. The design of this embodiment is as follows:

[0058] The two ends of the bracket bottom plate 81 are provided with connecting blocks 91, and the connecting blocks 91 are provided with rod-penetrating grooves 92, and the rod-penetrating grooves 92 are engaged with the rod body of the sliding bottom rod 64 on the corresponding side. The top end of the overall sampling bottle positioning bracket 42 is swingably mounted on the rotating shaft 45, and the bottom end of the sampling bottle positioning bracket 42 is connected to the rod body of the sliding bottom rod 64 and is slidably mounted on the sliding bottom rod 64.

[0059] The swing drive frame 26 includes a swing support 101 on the side wall of the supporting outer frame 22, a swing base plate 102 arranged on the swing support 101, and a mounting sleeve 103 installed in the swing base plate 102. A driving barrel 104 is arranged in the mounting sleeve 103. An electric control driving rod 105 is installed at the driving end of the driving barrel 104. A pulling head 106 is arranged at the rod end of the electric control driving rod 105. The pulling head 106 is connected to the sliding bottom rod 64 through a connecting bolt 107.

[0060] The support bottom plate 81 firmly supports the entire sampling device, and connecting blocks 91 are provided at both ends. The connecting blocks 91 are designed with precise rod-through grooves 92 inside to ensure that the sliding bottom rod 64 can slide accurately and stably inside. This design not only improves the structural strength of the device, but also ensures the verticality during the sampling process, thereby reducing the sampling error caused by the shaking of the device.

[0061] The swing drive frame 26 greatly improves the adjustability of the sampling device. The swing drive frame 26 is composed of a swing support 101, a swing base plate 102, a mounting sleeve 103, a drive barrel 104, an electric drive rod 105 and a pulling head 106. The electric drive rod 105 in the drive barrel 104 drives the pulling head 106 to move in a specific direction through precise control. The pulling head 106 is connected to the sliding bottom rod 64 through a connecting bolt 107, thereby realizing precise swing control of the sampling bottle positioning bracket 42 and the sampling bottle. This design enables the sampling bottle to be more accurately aligned with the sampling position, further improving the accuracy of sampling.

[0062] The top of the sampling bottle positioning bracket 42 is swing-mounted, and the bottom of the sampling bottle positioning bracket 42 is closely connected to the sliding bottom rod 64 and slides along it to achieve precise depth control. This design allows the sampling bottle to automatically adjust the optimal angle when it contacts the sewage, and can move along the water layer area at that height to implement multi-point sampling. Each time, the valve of part of the sampling bottle is opened to collect samples of the water layer at multiple points, so that more sufficient sample data can be obtained.

[0063] At the same time, the sliding bottom rods 64 on both sides also limit the sampling bottle positioning bracket 42, keeping the sampling bottle positioning bracket 42 only swinging with the swing of the sliding frame 23, and will not be affected by the impact of lake water, thereby reducing the impact of environmental interference and further improving the accuracy and representativeness of sampling.

[0064] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0065] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sampling device for sewage detection, comprising a hanging frame (11) and a sampling frame (12) installed at the bottom end of the hanging frame (11); characterized in that: The hanging frame (11) is provided with a mounting base (13), a vertical lifting frame (14) mounted on the mounting base (13), and a lifting hanger (15) arranged on the vertical lifting frame (14); a hanger base plate (16) is provided at the bottom of the lifting hanger (15), and the sampling frame (12) is mounted on the hanger base plate (16); The sampling rack (12) is provided with a rack main frame (21), a supporting outer frame (22) arranged on the rack main frame (21), and a sliding frame (23) installed at the bottom of the supporting outer frame (22); the sampling rack (12) further comprises a sampling component (24); the sampling component (24) is arranged in the inner space of the supporting outer frame (22) and is slidably installed at the bottom of the rack main frame (21); a driver (25) for driving the sampling component (24) to move is provided on the side edge of the rack main frame (21); and a sampling bottle is installed in the sampling component (24); The bottom of the sampling assembly (24) is mounted on a sliding frame (23), and the sliding frame (23) is swingably mounted in a frame body of the supporting outer frame (22). A swing driving frame (26) for driving the sampling assembly (24) to swing is provided on a side edge of the supporting outer frame (22); The main frame (21) of the rack comprises a main frame shell (31), side wing frame plates (33) arranged on both sides of the inner frame wall of the main frame shell (31), and inner frame rails (34) installed on the side wing frame plates (33); a drive mounting frame (32) is also mounted in the main frame (21); a horizontal adjustment screw rod (35) is mounted on the drive mounting frame (32); the horizontal adjustment screw rod (35) runs through the frame of the main frame shell (31); a threaded sleeve (37) is mounted on the top of the sampling component (24); the threaded sleeve (37) is sleeved on the rod body of the horizontal adjustment screw rod (35); a coupling transmission (36) is mounted on the driving end of the driver (25); and a power input end of the horizontal adjustment screw rod (35) is connected to the driver (25) through the coupling transmission (36); The sampling assembly (24) is composed of a plurality of sampling brackets (41), and a sampling bottle positioning bracket (42) is installed at the bottom of each of the sampling brackets (41); the sampling bottle positioning bracket (42) comprises a bracket top plate (43) and a hanging frame (44) installed on the bottom plane of the bracket top plate (43); a connecting head (46) is provided at the top of the hanging frame (44), the threaded sleeve (37) is installed on the connecting head (46), a rotating shaft (45) is provided on the hanging frame (44), and the sampling bottle positioning bracket (42) is installed on the rotating shaft (45); The sampling bottle positioning bracket (42) comprises a hanging frame bottom plate (71), side wing brackets (72) arranged on both sides of the hanging frame bottom plate (71), and a locking bolt (73) installed on the top of the side wing bracket (72), wherein the locking bolt (73) is installed on the rotating shaft (45), and a sampling bottle clamp (74) is installed at the bottom end of the side wing bracket (72), and a sampling bottle loading area (75) is formed between the side wing brackets (72) on both sides; The sampling bottle clamp (74) includes a bracket base plate (81) installed at the bottom end of the side bracket (72) and a clamping plate (82) arranged on the bracket base plate (81), and clamping grooves (83) that are connected to each other are arranged between the clamping plates (82) on both sides; a concave locking groove (84) is arranged in the circle of the clamping groove (83); a side buckle (85) is arranged on the plate surface of the clamping plate (82), and a side card (86) is installed on the side buckle (85).

2. The sewage detection sampling device according to claim 1, characterized in that: Side edge plates (51) are provided on both sides of the bracket top plate (43), a hoisting slider (52) is installed on the side edge plates (51), a sliding wire groove (53) is provided on the side edge of the hoisting slider (52), and the sliding wire groove (53) is embedded in the corresponding inner frame track (34).

3. The sewage detection sampling device according to claim 2, characterized in that: The main body of the sliding frame (23) is a sliding bottom rod (64), the ends of the sliding bottom rod (64) are each provided with a swing support head (62), the top of the swing support head (62) is provided with a sliding frame support plate (61), a rotating straight shaft (63) is installed on the side wall of the frame body of the supporting outer frame (22), and the sliding frame support plate (61) is installed on the rotating straight shaft (63).

4. The sewage detection sampling device according to claim 1, characterized in that: Connecting blocks (91) are provided at both ends of the bracket bottom plate (81), and rod penetration grooves (92) are provided in the connecting blocks (91). The rod penetration grooves (92) are engaged with the rod body of the sliding bottom rod (64) on the corresponding side.

5. The sewage detection sampling device according to claim 4, characterized in that: The swing drive frame (26) comprises a swing support (101) on the side wall of the supporting outer frame (22), a swing base plate (102) arranged on the swing support (101), and a mounting sleeve (103) mounted in the swing base plate (102); a driving barrel (104) is arranged in the mounting sleeve (103); an electric control driving rod (105) is mounted on the driving end of the driving barrel (104); a pulling head (106) is arranged on the rod end of the electric control driving rod (105); and the pulling head (106) is connected to the sliding bottom rod (64) via a connecting bolt (107).

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