BOD detector hose stabilizing mechanism

Abstract

This utility model relates to the field of BOD detector hose limiting technology, and more particularly to a BOD detector hose stabilization mechanism, including a BOD detector housing, an arc-shaped limiting plate, and an arc-shaped limiting strip. Four placement slots are evenly spaced on the right side of the top of the BOD detector housing. A bottle is placed inside each placement slot, and a bottle cap is threaded to the top of the bottle. A flexible tube is fixedly connected to the top of the bottle cap, and an arc-shaped rubber sleeve is fitted to the end of the flexible tube near the bottle cap. Four internal threaded cylinders are evenly spaced on the left side of the top of the BOD detector housing, and threaded rods are connected to the internal threads of the internal threaded cylinders. This utility model achieves anti-bending function by embedding the middle section of the flexible tube into the lower arc groove of the arc-shaped limiting plate, and then lifting the arc-shaped limiting strip into the corresponding slot using a handle. The lower arc groove of the limiting plate and the upper arc groove of the limiting strip form a closed circular channel with matching curvature. By constraining the circumferential deformation of the flexible tube's bending point, the geometric shape of the pipe is maintained.

Description

Technical Field

[0001] This utility model relates to the field of BOD detector hose limiting technology, and in particular to a BOD detector hose stabilization mechanism. Background Technology

[0002] A BOD analyzer is an instrument used to analyze the content of various organic substances in water. A large amount of wastewater is generated in industrial production and daily life. In order to meet discharge standards and protect the water environment, it is necessary to use a BOD analyzer to test the water quality. During operation, the test bottle needs to be connected to the analyzer through a hose. To improve the stability of the hose, a stabilizing mechanism is required.

[0003] Common BOD detector hose stabilization mechanisms only include a hose fixing structure, which can fix the hose position but lacks the function of preventing hose bending. This cannot guarantee the smoothness of hose delivery. When the limiting structure rigidly constrains the middle section of the hose, the hose section at the detection end connection is prone to unexpected sagging due to gravity and material deformation characteristics. This causes the hose to form a local bending node at the limiting structure. This geometric deformation will significantly increase the fluid transmission resistance, causing the liquid to flow stagnate at the bend, affecting the smoothness of hose delivery.

[0004] Therefore, in response to the lack of hose bending prevention function, the hose at the detection end connection is prone to unexpected sagging due to gravity and material deformation after the middle section of the rigidly constrained hose, resulting in the formation of local bending nodes in the limiting area. This geometric deformation will increase the fluid transmission resistance and cause flow stagnation at the bending point, affecting the smoothness of hose delivery. A hose stabilization mechanism for BOD detectors can be designed. Utility Model Content

[0005] To overcome the lack of hose bending prevention function, the hose at the detection end connection is prone to unexpected sagging due to gravity and material deformation in the middle section of the rigid constraint hose. This causes local bending nodes to form in the limiting area. This geometric deformation increases the fluid transmission resistance and causes flow stagnation at the bending point, affecting the smoothness of hose delivery.

[0006] The technical solution of this utility model is as follows: A BOD detector hose stabilization mechanism includes a BOD detector housing, an arc-shaped limiting plate, and an arc-shaped limiting strip. Four placement slots are evenly spaced on the right side of the top of the BOD detector housing. Bottles are placed inside the placement slots, and bottle caps are threaded to the top of the bottles. A flexible tube is fixedly connected to the top of the bottle cap, and an arc-shaped rubber sleeve is fitted onto one end of the flexible tube near the bottle cap. Four internal screw cylinders are evenly spaced on the left side of the top of the BOD detector housing. Lead screws are threaded to the inside of the internal screw cylinders, and a fixed plate is rotatably connected to the top of the lead screws. An arc-shaped limiting plate is fixedly connected to the top of the fixed plate. A locking square groove is formed on the top of the arc-shaped limiting plate, and a locking lower arc groove is formed at the bottom of the locking square groove. An arc-shaped limiting strip is set inside the locking square groove.

[0007] Preferably, by embedding the middle section of the flexible tube into the lower arc groove of the arc-shaped limiting plate, and then using a handle to lift the arc-shaped limiting strip to a predetermined height and precisely place it into the cavity of the square groove, the magnetic strip built into the arc-shaped limiting strip and the surface of the arc-shaped limiting plate generate a magnetic attraction, so that the arc-shaped inner wall of the lower arc groove is precisely aligned with the upper arc groove at the bottom of the arc-shaped limiting strip. Together, they form a circular channel with continuous curvature. This channel applies circumferential constraint force to the tube body by precisely matching the curvature parameters of the theoretical bending point of the middle section of the flexible tube, effectively limiting the unexpected excessive bending phenomenon of the flexible tube during fluid transportation, thereby maintaining the geometric integrity of the inner diameter of the pipe, ensuring the stability of the cross-sectional flow rate of the liquid flow path, and realizing the function of preventing flexible tube bending.

[0008] Preferably, a control panel is fixedly connected to the top left side of the BOD detector housing, and four detection ports are fixedly connected at equal intervals on the top left side of the BOD detector housing. The end of the soft tube away from the bottle cap passes through the lower arc groove of the locking mechanism and is fixedly connected to the detection port.

[0009] Preferably, a power switch is fixedly connected to the left end of the front side of the BOD detector housing, a handle is fixedly connected to the upper end of the outer side of the lead screw, and a grip is fixedly connected to the top of the arc-shaped limit strip.

[0010] Preferably, a power interface is fixedly connected to the left end of the front side of the BOD detector housing, and magnetic grooves are symmetrically opened on the front and rear sides of the arc-shaped limiting strip.

[0011] Preferably, a magnetic strip is fixedly connected inside the magnetic groove, and the magnetic strip is magnetically attracted to the arc-shaped limiting plate.

[0012] Preferably, a VGA interface is fixedly connected to the left end of the front side of the BOD detector housing, and the end of the arc-shaped rubber sleeve near the bottle cap is fixedly connected to the top of the bottle cap.

[0013] Preferably, the BOD detector has a heat dissipation groove on the right side of the front side of the housing, and an upper arc groove for locking is provided at the bottom of the arc-shaped limiting strip.

[0014] The beneficial effects of this utility model are:

[0015] The advantage of this structure lies in its ability to automatically form a circular channel with a smooth arc through the magnetic combination design of the arc-shaped limiting plate and arc-shaped limiting strip. This effectively constrains the bending angle of the flexible tube, preventing tube deformation or obstruction of liquid delivery due to excessive bending. Its arc-shaped contact design maintains the natural bending shape of the flexible tube and evenly distributes stress, reducing local wear. At the same time, the magnetic fixing method facilitates quick assembly and disassembly adjustment. While ensuring the smoothness of the pipeline, it enhances the structural stability and balances ease of operation with smooth liquid delivery. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of this utility model.

[0017] Figure 2 The diagram shown is a schematic representation of the outer casing structure of the BOD detector of this utility model.

[0018] Figure 3 The diagram shown is a schematic representation of the explosion structure of the hose anti-bending component of this utility model.

[0019] Figure 4 The diagram shown is a cross-sectional view of the hose anti-bending component of this utility model.

[0020] Figure 5 The diagram shown is a schematic representation of the bottle structure of this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. BOD detector housing; 2. Placement slot; 3. Control panel; 4. Power switch; 5. Power interface; 6. VGA interface; 7. Heat dissipation slot; 8. Detection port; 9. Bottle body; 10. Bottle cap; 11. Flexible tube; 12. Arc-shaped rubber sleeve; 13. Inner screw; 14. Lead screw; 15. Fixing plate; 16. Handle; 17. Arc-shaped limiting plate; 18. Square slot for locking; 19. Lower arc-shaped slot for locking; 20. Arc-shaped limiting strip; 21. Magnetic slot; 22. Magnetic strip; 23. Upper arc-shaped slot for locking; 24. Grip. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a BOD detector hose stabilization mechanism, comprising a BOD detector housing 1, an arc-shaped limiting plate 17, and an arc-shaped limiting strip 20. Four placement slots 2 are evenly spaced on the right side of the top of the BOD detector housing 1. Bottles 9 are placed inside the placement slots 2, and bottle caps 10 are threadedly connected to the top of the bottle 9. A flexible tube 11 is fixedly connected to the top of the bottle cap 10, and an arc-shaped rubber sleeve 12 is fitted onto the end of the flexible tube 11 near the bottle cap 10. Four internal screw cylinders 13 are evenly spaced on the left side of the top of the BOD detector housing 1. Lead screws 14 are threadedly connected to the inside of the internal screw cylinders 13, and a fixing plate 15 is rotatably connected to the top of the lead screw 14. An arc-shaped limiting plate 17 is fixedly connected to the top of the fixing plate 15. A locking square groove 18 is formed on the top of the arc-shaped limiting plate 17, and a locking lower arc groove is formed at the bottom of the locking square groove 18. 19. An arc-shaped limiting strip 20 is provided inside the locking square groove 18. This device is made by embedding the middle section of the soft tube 11 into the lower arc groove 19 of the arc-shaped limiting plate 17, and using the handle 24 to precisely assemble the arc-shaped limiting strip 20 into the receiving space of the locking square groove 18. During this process, the magnetic strip 22 installed inside the arc-shaped limiting strip 20 forms a directional magnetic attraction with the surface of the arc-shaped limiting plate 17, which causes the arc-shaped guide surface of the lower arc groove 19 to form a high-precision curved surface engagement with the upper arc groove 23 at the bottom of the arc-shaped limiting strip 20. The two work together to construct an annular constraint channel with a uniform radius of curvature. This channel is customized according to the curvature data of the theoretical bending node of the middle section of the soft tube 11. By implementing circumferential limiting on the tube wall, it actively suppresses the non-design-induced severe buckling deformation of the soft tube 11 when the fluid pressure changes, ensuring the continuity and consistency of the tube cavity geometry.

[0024] Please see Figures 2-5In this embodiment, a control panel 3 is fixedly connected to the top left side of the BOD detector housing 1. Four detection ports 8 are fixedly connected at equal intervals on the top left side of the BOD detector housing 1. The end of the flexible tube 11 away from the bottle cap 10 passes through the locking lower arc groove 19 and is fixedly connected to the detection port 8. The locking lower arc groove 19 with continuous curvature limits the position of the flexible tube 11, which not only ensures the stability of the flexible tube 11, but also effectively limits the unexpected excessive bending phenomenon of the flexible tube 11 during fluid transportation. A power switch is fixedly connected to the front left end of the BOD detector housing 1. 4. A handle 16 is fixedly connected to the upper end of the outer side of the lead screw 14, and a grip 24 is fixedly connected to the top of the arc-shaped limiting strip 20. The lead screw 14 is driven to rotate by the handle 16, and the rotating lead screw 14 drives the arc-shaped limiting plate 17 to move up and down through the fixed plate 15. A power interface 5 is fixedly connected to the left end of the front side of the BOD detector housing 1. Magnetic suction grooves 21 are symmetrically opened on the front and rear sides of the arc-shaped limiting strip 20. By placing the magnetic suction strip 22 into the magnetic suction groove 21, the magnetic suction strip 22 will not exceed the outside of the arc-shaped limiting strip 20, so as not to hinder the arc-shaped limiting strip 20 from being inserted into the slot 18.

[0025] Please see Figures 1-5 In this embodiment, a magnetic strip 22 is fixedly connected inside the magnetic groove 21. The magnetic strip 22 is magnetically attracted to the arc-shaped limiting plate 17. The arc-shaped limiting strip 20 is attracted to the arc-shaped limiting plate 17 through the magnetic strip 22, thereby fixing the arc-shaped limiting strip 20 inside the magnetic groove 21. A VGA interface 6 is fixedly connected to the left end of the front side of the BOD detector housing 1. The end of the arc-shaped rubber sleeve 12 near the bottle cap 10 is fixedly connected to the top of the bottle cap 10. The arc-shaped rubber sleeve 12 prevents the end of the soft tube 11 connected to the bottle cap 10 from being excessively bent. A heat dissipation groove 7 is provided on the right end of the front side of the BOD detector housing 1. An upper arc groove 23 is provided at the bottom of the arc-shaped limiting strip 20. The lower arc groove 19 and the upper arc groove 23 are fitted together to form a circular channel with an arc. This circular channel limits the bending rate of the bending point in the middle section of the soft tube 11.

[0026] During operation, the screw 14 is driven by the handle 16 to rotate. This rotational torque is transmitted through the fixed plate 15, causing the arc-shaped limiting plate 17 to adjust its position vertically. When the arc-shaped limiting plate 17 rises to a set height that matches the outer diameter of the flexible tube 11, the end of the flexible tube 11 is passed through the lower arc groove 19 and connected to the detection port 8. Then, the operator uses the handle 24 to place the arc-shaped limiting strip 20 into the square groove 18. At this time, the magnetic strip 22 integrated inside the arc-shaped limiting strip 20 forms a stable magnetic field with the surface of the arc-shaped limiting plate 17. The suction connection causes the concave arc surface of the lower arc groove 19 to precisely match the convex arc surface of the upper arc groove 23 at the bottom of the arc-shaped limiting strip 20. The complete annular channel formed after the combination is designed based on the curvature parameters of the theoretical bending point in the middle of the soft tube 11. The uniformly distributed circumferential mechanical constraints effectively suppress the non-design bending deformation of the soft tube 11 under fluid pressure, thereby maintaining the geometric stability of the inner cavity of the tube and ensuring that the cross-sectional area of ​​the flow channel remains constant during liquid transportation, ultimately achieving the technical effect of preventing abnormal folding of the pipeline.

[0027] Through the above steps, after placing the middle section of the flexible tube 11 into the lower arc groove 19 of the arc-shaped limiting plate 17, the handle 24 is used to precisely embed the arc-shaped limiting strip 20 into the receiving space of the square groove 18. During this process, the magnetic strip 22 built into the arc-shaped limiting strip 20 forms a stable magnetic attraction effect with the outer surface of the arc-shaped limiting plate 17, causing the concave curved surface of the lower arc groove 19 to seamlessly engage with the upper arc groove 23 configured on the bottom surface of the arc-shaped limiting strip 20. The two work together to form a complete annular guide structure with uniform curvature characteristics. This structure strictly corresponds to the curvature value of the preset bending node in the middle of the flexible tube 11. By implementing a comprehensive circumferential constraint mechanism on the tube wall, the uncontrolled bending behavior of the flexible tube 11 that may exceed the range under fluid transmission conditions is successfully suppressed, ensuring the geometric stability of the pipe cross-section and ensuring the cross-section of the liquid medium flow path. The current dynamic constant-phase design addresses the common problem of hose stabilization mechanisms in BOD detectors. While these mechanisms primarily focus on securing the hose, they lack anti-bending capabilities and cannot guarantee smooth hose delivery. This is particularly problematic when the limiting structure rigidly fixes the hose's central area. Due to continuous gravity and the creep characteristics of polymer materials, the pipe section connected to the detection port often experiences downward displacement outside the design range. This causes acute-angle deformation areas with concentrated stress at the constraint points. Such abrupt three-dimensional geometric distortion leads to abrupt changes in the flow channel cross-section, resulting in laminar turbulence and secondary flow phenomena when the fluid passes through the abrupt bending zone. This, in turn, causes significant local pressure gradient anomalies, ultimately leading to a sharp increase in energy loss of the liquid medium in the pipeline system and severely impacting the overall hydraulic transport efficiency of the pipeline system.

Claims

1. A BOD detector hose stabilizing mechanism comprising a BOD detector outer housing (1); characterized in that: It also includes an arc-shaped limiting plate (17) and an arc-shaped limiting strip (20). Four placement slots (2) are evenly spaced on the right side of the top of the BOD detector housing (1). Bottles (9) are placed inside the placement slots (2). A bottle cap (10) is threaded onto the top of the bottle (9). A flexible tube (11) is fixedly connected to the top of the bottle cap (10). An arc-shaped rubber sleeve (12) is fitted onto one end of the flexible tube (11) near the bottle cap (10). The top of the BOD detector housing (1)... Four internal screw cylinders (13) are arranged at equal intervals on the left side. The internal screw cylinders (13) are connected to a lead screw (14) by internal threads. The top of the lead screw (14) is rotatably connected to a fixed plate (15). The top of the fixed plate (15) is fixedly connected to an arc-shaped limiting plate (17). The top of the arc-shaped limiting plate (17) is provided with a locking square groove (18). The bottom of the locking square groove (18) is provided with a locking lower arc groove (19). The inside of the locking square groove (18) is provided with an arc-shaped limiting strip (20).

2. The BOD detector hose stabilizing mechanism of claim 1, wherein: A control panel (3) is fixedly connected to the top left side of the BOD detector housing (1). Four detection ports (8) are fixedly connected at equal intervals on the top left side of the BOD detector housing (1). The end of the soft tube (11) away from the bottle cap (10) passes through the lower arc groove (19) of the locking position and is fixedly connected to the detection port (8).

3. The BOD detector hose stabilizing mechanism of claim 1, wherein: A power switch (4) is fixedly connected to the left end of the front side of the BOD detector housing (1), a handle (16) is fixedly connected to the upper end of the outer side of the lead screw (14), and a grip (24) is fixedly connected to the top of the arc-shaped limit bar (20).

4. The BOD detector hose stabilizing mechanism of claim 1, wherein: A power interface (5) is fixedly connected to the left end of the front side of the BOD detector housing (1), and magnetic grooves (21) are symmetrically opened on the front and rear sides of the arc-shaped limiting strip (20).

5. The BOD detector hose stabilizing mechanism of claim 4, wherein: A magnetic strip (22) is fixedly connected inside the magnetic groove (21), and the magnetic strip (22) is magnetically attracted to the arc-shaped limiting plate (17).

6. The BOD detector hose stabilizing mechanism of claim 1, wherein: A VGA interface (6) is fixedly connected to the left end of the front side of the BOD detector housing (1), and the end of the arc-shaped rubber sleeve (12) near the bottle cap (10) is fixedly connected to the top of the bottle cap (10).

7. The BOD detector hose stabilizing mechanism of claim 1, wherein: A heat dissipation groove (7) is provided on the right side of the front side of the BOD detector housing (1), and a slotted upper arc groove (23) is provided at the bottom of the arc-shaped limiting strip (20).

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