Lead fish for hydrological cableway

Abstract

The utility model discloses a kind of hydrology cableway special lead fish, belong to hydrology lead fish technical field.The application includes: framework, including main bone pole, fixed frame;One end of fixed frame is vertically connected with one end of main bone pole;Body, including body and tail wing;Body is set on the middle part of main bone pole and the end far from fixed frame;Tail wing is set on the end far from fixed frame of body;Main bone pole, fixed frame and tail wing are made of stainless steel material.The main bone pole, fixed frame and tail wing of the application are made of stainless steel material, to enhance the anti-impact of main bone pole, fixed frame and tail wing, prevent main bone pole, fixed frame and tail wing from being damaged by waterborne debris, ensure the stability of the whole in water, and avoid fixed frame being impacted and bent, cause the position of current meter to change.

Description

Technical Field

[0001] This utility model belongs to the field of hydrological lead weight technology, specifically relating to a lead weight for hydrological cableways. Background Technology

[0002] Lead weights are crucial support platforms for instruments and equipment in hydrological cableway surveys, primarily used for measuring parameters such as flow velocity, water depth, and sediment content at cross-sections of rivers and canals. The lead weights are designed with a streamlined shape, mimicking a fish, and are typically cast from lead or a lead-iron mixture. Suspended in the water by a cableway system, they provide stable positioning for instruments such as current meters and reduce water flow interference. However, lead has a low hardness, and during water-based testing, collisions with objects are inevitable, causing defects such as dents and bumps on the lead weights. This reduces their stability, especially for current meter holders; collisions can cause the holders to bend, affecting the current meter's position and ultimately impacting hydrological data.

[0003] Furthermore, the cable of the lead weight is mostly located on the outside of the lead weight, which not only affects its appearance but also makes it easy for it to be snagged or pulled by debris in the water during submersion testing. For example, utility model patent CN215064520U discloses a lead weight for hydrological monitoring. In view of this, there is a need to design a lead weight specifically for hydrological cableways that has good impact resistance and can protect the cable. Utility Model Content

[0004] This invention provides a lead weight specifically for hydrographic cableways to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A lead weight specifically designed for hydrographic cableways includes: a skeleton comprising a main skeleton and a fixing frame; one end of the fixing frame is vertically connected to one end of the main skeleton; a body comprising a main body and a tail fin; the main body is located in the middle of the main skeleton and at the end away from the fixing frame; the tail fin is located at the end of the main body away from the fixing frame; the main skeleton, the fixing frame, and the tail fin are all made of stainless steel.

[0006] As a further improvement to the technical solution, the skeleton also includes a conduit; one end of the conduit is connected to the end of the main skeleton where the fixing frame is provided, and the other end extends along the length of the main skeleton toward the fish body, passes through the fish body, and protrudes from the top of the middle part of the fish body.

[0007] As a further improvement to the technical solution, the conduit includes a first conduit and a second conduit; the first conduit is connected to one end of the main bone rod where the fixing frame is provided, and its other end extends along the length direction of the main bone rod toward the end of the main bone rod away from the fixing frame and passes through the fish body; one end of the second conduit is provided to the end of the fish body away from the fixing frame, and its other end extends along the length direction of the main bone rod and passes through the fish body, protruding from the top of the middle part of the fish body.

[0008] As a further improvement to the technical solution, the conduit is made of stainless steel.

[0009] As a further improvement to the technical solution, the ratio of the tail fin length to the fish body length is 0.7-0.8:1; the ratio of the tail fin width to the fish body width is 1.28-1.38.

[0010] As a further improvement to the technical solution, the skeleton also includes a bottom-touching structure; the bottom-touching structure includes a bottom-touching hole, a bottom-touching rod, and a bottom-touching plate; the bottom-touching hole is provided through one end of the fish body near the tail fin; the length direction of the bottom-touching hole is consistent with the length direction of the fixing frame; one end of the bottom-touching plate is hinged to the end of the main bone rod near the fixing frame; the bottom-touching rod is located in the bottom-touching hole and slides along the bottom-touching hole; one end of the bottom-touching rod extends out of the bottom-touching hole and is connected to the end of the bottom-touching plate away from the fixing frame.

[0011] As a further improvement to the technical solution, the bottom plate is located on the side of the main bone rod away from the fixing frame; the bottom plate has an arc-shaped structure corresponding to the fish body.

[0012] As a further improvement to the technical solution, the bottom-contact structure also includes a bottom-contact switch; the bottom-contact switch is disposed at the end of the bottom-contact hole away from the bottom-contact plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The main frame, fixing frame, and tail fin of this application are all made of stainless steel to enhance their impact resistance, prevent damage from floating debris, ensure overall stability in the water, and prevent the fixing frame from bending due to impact, thus avoiding changes in the position of the current meter. The electrical cables pass through conduits and connect to the electronic instruments, such as the current meter, mounted on the lead weight. The conduits conceal the electrical cables, preventing them from becoming tangled and maintaining an aesthetically pleasing appearance. They also protect the cables from being pulled by debris in the water. The conduits are made of stainless steel to increase their impact resistance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of a lead weight specifically for hydrological cableways provided by this utility model. Figure 1 ; Figure 2 Structural schematic diagram provided for this utility model Figure 2 ; Figure 3 Structural schematic diagram provided for this utility model Figure 3 ; Figure 4 Structural schematic diagram provided for this utility model Figure 4 ; Reference numerals: 1-Skeleton, 11-Main skeleton, 12-Fixing frame, 13-First conduit, 14-Second conduit, 15-Bottom contact hole, 16-Bottom contact rod, 17-Bottom contact plate, 2-Fish body, 21-Fish body, 22-Tail fin. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this utility model pertains.

[0017] The terms "first," "second," and similar words used in this utility model application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the features, integrals, steps, operations, elements, and / or components listed following "comprising" or "including," and do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Example 1: like Figures 1 to 4 As shown, a lead weight for hydrological cableways includes: a skeleton 1 and a body 2; the skeleton 1 includes a main skeleton 11 and a fixing frame 12; one end of the fixing frame 12 is vertically connected to one end of the main skeleton 11, that is, the length direction of the fixing frame 12 is perpendicular to the length direction of the main skeleton 11, and the fixing frame 12 is mainly used to support the current meter; the body 2 includes a body body 21 and a tail fin 22; the body body 21 is located in the middle of the main skeleton 11 and at the end away from the fixing frame 12; the tail fin 22 is located at the end of the body body 21 away from the fixing frame 12, and the tail fin 22 includes an upper tail fin and a lower tail fin. The tail fin is designed to improve the stability of the fish's body. The main skeleton 11, the fixing frame 12, and the tail fin 22 are all made of stainless steel to enhance their impact resistance, prevent them from being damaged by floating objects in the water, ensure overall stability in the water, and prevent the fixing frame 12 from being bent by impacts, which would cause the position of the current meter to change. Preferably, the stainless steel material is 304 stainless steel, which can ensure normal underwater signal transmission. The fish body 21 is made of lead or a lead-iron mixture.

[0020] like Figures 1 to 4As shown, preferably, the skeleton 1 also includes a conduit; one end of the conduit is connected to the end of the main skeleton 11 where the fixing bracket 12 is provided, and the other end extends along the length of the main skeleton 11 toward the fish body 21 and passes through the fish body 21, protruding from the top of the middle part of the fish body 21. The circuit cable passes through the conduit and is connected to the circuit of the electronic instrument installed on the lead fish, such as a current meter. The conduit protects the circuit cable, wraps the circuit cable to avoid the circuit cable being messy, and makes the overall appearance beautiful, while preventing the circuit cable from being pulled by debris in the water. The conduit is made of stainless steel to increase the impact resistance of the conduit.

[0021] like Figures 1 to 4 As shown, preferably, the conduit includes a first conduit 13 and a second conduit 14; the first conduit is connected to one end of the main bone rod 11 where the fixing frame 12 is provided, and its other end extends along the length direction of the main bone rod 11 toward the end of the main bone rod 11 away from the fixing frame 12, and passes through the fish body 21 to ensure that the circuit cable is smoothly threaded in the first conduit 13; one end of the second conduit 14 is provided to the end of the fish body 21 away from the fixing frame 12, and its other end extends along the length direction of the main bone rod 11, passes through the fish body 21, and protrudes from the top of the middle part of the fish body 21. The end of the second conduit 14 protruding from the top of the middle part of the fish body 21 has an arc-shaped structure to facilitate threading; the conduit is divided into two sections to reduce bending and to ensure the straight structure of the first conduit 13 and the second conduit 14 as much as possible, so as to facilitate the threading of the circuit cable in the conduit.

[0022] Preferably, the ratio of the length of the tail fin 22 to the length of the fish body 21 is 0.7-0.8:1; the ratio of the width of the tail fin 22 to the width of the fish body 21 is 1.28-1.38. By increasing the size of the tail fin, that is, increasing the size of the upper tail fin and the side tail fin, the overall stability and the fluidity in the water are increased.

[0023] Work style: The main frame 11, the fixing frame 12, and the tail fin 22 of this application are all made of stainless steel to enhance their impact resistance, prevent them from being damaged by floating debris in the water, ensure overall stability in the water, and prevent the fixing frame 12 from being bent by impact, thus changing the position of the current meter. The electrical cables pass through the conduit and connect to the electronic instruments installed on the lead fish, such as the current meter. The conduit covers the electrical cables to prevent them from becoming messy, making the overall appearance more aesthetically pleasing, and also to prevent the electrical cables from being pulled by debris in the water, protecting them. The conduit is made of stainless steel to increase its impact resistance.

[0024] Example 2: like Figures 1 to 4As shown, compared with Embodiment 1, the difference lies in that the skeleton 1 further includes a bottom-touching structure; the bottom-touching structure includes a bottom-touching hole 15, a bottom-touching rod 16, and a bottom-touching plate 17; a through bottom-touching hole 15 is provided at one end of the fish body 21 near the tail fin 22; the length direction of the bottom-touching hole 15 is consistent with the length direction of the fixing frame 12, that is, the length direction of the bottom-touching hole 15 is perpendicular to the length direction of the main skeleton 11; one end of the bottom-touching plate 17 is hinged to the end of the main skeleton 11 near the fixing frame 12; the bottom-touching rod 16 is located in the bottom-touching hole 15 and slides along the bottom-touching hole 15; one end of the bottom-touching rod 16 extends out of the bottom-touching hole 15 and is connected to the end of the bottom-touching plate 17 away from the fixing frame 12; preferably, the bottom-touching plate 17 is located on the side of the main skeleton 11 away from the fixing frame 12; the bottom-touching plate 17 corresponds to the fish body 21 as... The arc-shaped structure enhances the streamlined appearance. Preferably, the bottom-touching structure also includes a bottom-touching switch. The bottom-touching switch is located at the end of the bottom-touching hole 15 away from the bottom-touching plate 17. Initially, the bottom-touching plate 17 and the bottom-touching rod 16 are affected by gravity, causing the bottom-touching plate 17 to move away from the fish body 21 and the bottom-touching rod 16 to move away from the bottom-touching switch, leaving a gap between them. When the bottom-touching plate 17 descends to the bottom, it rotates and moves towards the fish body 21, causing the bottom-touching rod 16 to move upward and contact the bottom-touching switch, triggering the switch and sending a bottom-touching signal to the hydrographic cableway system. Preferably, the bottom-touching signal switch uses a fully sealed 304 stainless steel structure to improve its resistance to impacts from drifting objects. Furthermore, using 304 stainless steel ensures normal underwater signal transmission. It should be noted that the bottom-touching switch is existing technology and frequently used in the field of hydrographic cableways; it is not an improvement of this application. Specific models and working principles of the bottom-touching switch will not be elaborated here.

[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lead weight specifically designed for hydrographic cableways, characterized in that, include: The skeleton (1) includes a main skeleton (11) and a fixing frame (12); one end of the fixing frame (12) is vertically connected to one end of the main skeleton (11); The fish body (2) includes a main body (21) and a tail fin (22); the main body (21) is located in the middle of the main bone rod (11) and at one end away from the fixing frame (12); the tail fin (22) is located at one end of the main body (21) away from the fixing frame (12); the main bone rod (11), the fixing frame (12) and the tail fin (22) are all made of stainless steel. The skeleton (1) also includes a conduit; one end of the conduit is connected to one end of the main skeleton (11) where the fixing frame (12) is provided, and the other end extends along the length of the main skeleton (11) toward the fish body (21) and passes through the fish body (21), and is exposed from the top of the middle part of the fish body (21); The skeleton (1) also includes a bottom-touching structure; the bottom-touching structure includes a bottom-touching hole (15), a bottom-touching rod (16), and a bottom-touching plate (17); the fish body (21) has a through bottom-touching hole (15) at one end near the tail fin (22); the length direction of the bottom-touching hole (15) is consistent with the length direction of the fixing frame (12); one end of the bottom-touching plate (17) is hinged to the end of the main bone rod (11) near the fixing frame (12); the bottom-touching rod (16) is located in the bottom-touching hole (15) and slides along the bottom-touching hole (15); one end of the bottom-touching rod (16) extends out of the bottom-touching hole (15) and is connected to the end of the bottom-touching plate (17) away from the fixing frame (12); the bottom-touching plate (17) is located on the side of the main bone rod (11) away from the fixing frame (12); the bottom-touching plate (17) is an arc-shaped structure corresponding to the fish body (21).

2. The lead weight for hydrographic cableways according to claim 1, characterized in that, The conduit includes a first conduit and a second conduit (14); the first conduit is connected to one end of the main bone rod (11) where the fixing frame (12) is provided, and its other end extends along the length direction of the main bone rod (11) toward the end of the main bone rod (11) away from the fixing frame (12) and passes through the fish body (21); one end of the second conduit (14) is provided to the end of the fish body (21) away from the fixing frame (12), and its other end extends along the length direction of the main bone rod (11) and passes through the fish body (21), and protrudes from the top of the middle part of the fish body (21).

3. The lead weight for hydrographic cableways according to claim 1, characterized in that, The conduit is made of stainless steel.

4. The lead weight for hydrographic cableways according to claim 1, characterized in that, The ratio of the length of the tail fin (22) to the length of the fish body (21) is 0.7-0.8:1; the ratio of the width of the tail fin (22) to the width of the fish body (21) is 1.28-1.

38.

5. The lead weight for hydrographic cableways according to claim 1, characterized in that, The bottom-contact structure also includes a bottom-contact switch; the bottom-contact switch is located at the end of the bottom-contact hole (15) away from the bottom-contact plate (17).

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