A portable shallow water depth sounder

Abstract

The invention discloses a portable shallow water depth sounder, belonging to the technical field of shallow water depth sounders, comprising a shell with open sides, first rotating shafts are rotatably installed on the inner walls on both sides of the shell, a winding roller is fixed between the two first rotating shafts, a retractable cable rack is fixed inside the shell, a cable is wound on the winding roller, one end of the cable passes through the cable rack and is connected to a probe, a placement rack is installed on the top wall of the shell for placing a host, and the other end of the cable passes through the shell and is connected to the host; the invention realizes automatic retraction and extension of the cable rack, which facilitates the probe to be extended into the water for measurement, and the user only needs one person to complete the measurement work, which greatly improves the convenience of measurement, and since there is no need to manually hold the cable, the stability of the probe during measurement is ensured, and the measurement error caused by manual holding is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of shallow water depth sounders, and in particular to a portable shallow water depth sounder. Background Art

[0002] A depth sounder is an instrument for measuring the depth of water bodies such as reservoirs, lakes, rivers, and shallow seas. As people's demand for underwater topography research during navigation increases, when measuring the depth of water bodies, existing depth sounders usually extend the sensor probe into the water so that the sensor probe reaches the required water depth, start the depth sounder, and convert the distance from the sensor probe to the obstacle through the speed of sound waves emitted by the sensor probe in the water and the time from the sound wave emission to the reception. The distance measured by the sensor probe plus the water depth of the sensor probe can be used to obtain the distance from the liquid surface to the obstacle, and the test results are processed and displayed by the host.

[0003] At present, there are handheld shallow water depth sounders on the market, which are widely loved by people for their advantage of being easy to carry. However, the current shallow water depth sounders require two people to operate when in use, one person holding the main unit, and the other person holding the cable and the probe, and placing the probe into the water area to be measured for measurement. It is difficult for one person to operate, and due to manual handheld operation, only the water depth of the shore can be measured, the measuring range is small, and it is difficult to ensure the stability of the probe, which can easily lead to deviations in the measurement results. If used on a ship, the operation is dangerous. Summary of the invention

[0004] The purpose of the present invention is to provide a portable shallow water depth sounder to solve the following technical problems: the current shallow water depth sounder is difficult to operate by one person, and due to manual handheld operation, it can only measure the water depth of the shore, the measuring range is small, and it is difficult to ensure the stability of the probe, which easily leads to deviations in the measurement results.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A portable shallow water depth sounder, comprising a shell with open sides on both side walls, first rotating shafts rotatably mounted on both side inner walls of the shell, a winding roller fixed between two first rotating shafts, a retractable cable rack fixed inside the shell, a cable wound on the winding roller, one end of the cable passing through the cable rack and connected to a probe, a placement rack installed on the top wall of the shell for placing a host, the other end of the cable passing through the shell and connected to the host;

[0007] Two telescopic cylinders are symmetrically installed on the bottom wall of the shell, and air pumps are installed on both side walls of the shell. The two air outlet pipes of the air pumps are respectively connected to the two telescopic cylinders. A transmission mechanism is arranged between the first rotating shaft and the air pump. By rotating the first rotating shaft, the cable rack is extended while the cable is released.

[0008] As a further solution of the present invention: The cable rack is composed of a fixed rack, a first movable rack and a second movable rack. The fixed rack is fixed inside the housing. The first movable rack is slidably installed on the fixed rack. The second movable rack is slidably installed on the first movable rack. A connecting plate is fixed to the bottom of the end of the second movable rack away from the housing. One end of the telescopic cylinder is fixedly connected to the connecting plate. A guiding column is also fixed to the end of the second movable rack away from the housing.

[0009] As a further solution of the present invention: The cross-sections of the fixed rack, the first movable rack and the second movable rack are all in a "U" - shaped structure. First sliding grooves are formed on both side walls of the fixed rack. First sliding blocks are fixed on both side walls of the first movable rack. The first sliding blocks are slidably connected to the first sliding grooves. Second sliding grooves are formed on both side walls of the first movable rack. Second sliding blocks are fixed on both side walls of the second movable rack. The second sliding blocks are slidably connected to the second sliding grooves.

[0010] As a further solution of the present invention: The telescopic cylinder includes a fixed cylinder fixed inside the housing. An activity cylinder is movably sleeved inside the fixed cylinder. An activity rod is movably sleeved inside the activity cylinder. One end of the activity rod is fixedly connected to the connecting plate. A connecting pipe is fixed to one end of the fixed cylinder. One end of the connecting pipe is connected to the air outlet pipe, and the other end extends into the activity cylinder.

[0011] As a further solution of the present invention: The transmission mechanism includes a second rotating shaft rotatably installed on the inner wall of the housing. A first gear is installed on the first rotating shaft. A second gear and an elliptical wheel are installed on the second rotating shaft. The first gear meshes with the second gear. The elliptical wheel contacts the handle of the air pump. A spring is sleeved on the piston rod of the air pump.

[0012] As a further solution of the present invention: One end of the first rotating shaft penetrates through the side wall of the housing and is connected with a handle. A carrying handle is installed on the top wall of the housing.

[0013] As a further solution of the present invention: A sleeve is fixedly sleeved on the end of the air outlet pipe close to the telescopic cylinder, and the sleeve is slidably connected to the bottom wall of the housing. A magnetic part is fixed to the end of the sleeve close to the connecting pipe. An adsorption part is fixed to the end of the connecting pipe close to the sleeve.

[0014] As a further solution of the present invention: A ratchet is installed on the first rotating shaft. A support rod is installed on the sleeve. A support block is fixed to the top of the support rod. A mounting block is fixed to the support block. A fixed shaft is fixed to the mounting block. A ratchet tooth is rotatably installed on the fixed shaft, and a torsion spring is arranged between the ratchet tooth and the fixed shaft.

[0015] The beneficial effects of the present invention:

[0016] (1) The present invention realizes automatic retraction and extension of the cable and automatic extension and retraction of the cable rack by arranging structures such as a housing, a first rotating shaft, a winding roller, a cable rack, and a telescopic cylinder. The probe is extended into the water for measurement, and the user only needs one person to complete the measurement work, which greatly improves the convenience of measurement. In addition, since there is no need to manually hold the cable, the stability of the probe during measurement is ensured, and the measurement error caused by manual holding is effectively avoided, thereby improving the accuracy of the depth measurement result and expanding the measurement range. The present invention is particularly suitable for water environments where it is difficult to manually fix the measurement position. When used on a ship, the device can be fixed on the deck, which improves the safety of users when using it.

[0017] (2) The cable rack of the present invention is composed of a fixed frame, a first movable frame and a second movable frame. The cable rack can be extended to a suitable length according to the needs, thereby meeting the different measurement needs of users. When not in use, it does not take up too much space and is easy to carry.

[0018] (3) The present invention provides a transmission mechanism, an air pump and a telescopic cylinder. When the cable is released, the air pump is pushed to inflate the telescopic cylinder, so that the telescopic cylinder is extended, thereby pushing the cable rack to extend. The operation is simple, the operation steps are simplified, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of the internal structure of the first embodiment of the present invention;

[0022] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 is a schematic structural diagram of a cable rack according to a first embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the telescopic cylinder of the first embodiment of the present invention;

[0025] Figure 6 is a schematic diagram of the internal structure of the second embodiment of the present invention;

[0026] Figure 7 yes Figure 6 The enlarged view of point B in the middle;

[0027] Figure 8 It is a schematic diagram of the structure of the ratchet according to the second embodiment of the present invention.

[0028] In the figure: 1. shell; 2. handle; 3. first rotating shaft; 4. winding roller; 5. cable rack; 501. fixed frame; 502. first movable frame; 503. second movable frame; 504. first slide groove; 505. first slider; 506. second slide groove; 507. second slider; 508. connecting plate; 509. guide column; 6. cable; 7. probe; 8. placement rack; 9. telescopic cylinder; 901. fixed cylinder; 902. movable cylinder; 903. movable rod; 10. air pump; 11. air outlet pipe; 12. connecting pipe; 13. spring; 14. first gear; 15. second rotating shaft; 16. second gear; 17. elliptical wheel; 18. sleeve; 19. ratchet; 20. support rod; 21. support block; 22. mounting block; 23. fixed shaft; 24. ratchet; 25. magnetic part; 26. adsorption part.

[0029] The drawings are only used for illustrative purposes and are not to be construed as limitations of the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced in size, and do not represent the size and shape of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the 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.

[0031] Example 1: Please refer to Figures 1 to 5As shown, the present invention is a portable shallow water depth sounder, including a shell 1 with open side walls, first rotating shafts 3 are rotatably installed on the inner walls of both sides of the shell 1, a winding roller 4 is fixed between the two first rotating shafts 3, a retractable cable rack 5 is fixed inside the shell 1, a cable 6 is wound on the winding roller 4, one end of the cable 6 passes through the cable rack 5 and is connected to a probe 7, a placement rack 8 is installed on the top wall of the shell 1 for placing a main machine, and the other end of the cable 6 passes through the shell 1 and is connected to the main machine; two telescopic cylinders 9 are symmetrically installed on the bottom wall of the shell 1, and air pumps 10 are installed on the two side walls of the shell 1, and the air outlet pipes 11 of the two air pumps 10 are respectively connected to the two telescopic cylinders 9, a transmission mechanism is arranged between the first rotating shaft 3 and the air pump 10, and the first rotating shaft 3 is rotated to push the cable 6 while releasing the cable 6. The cable rack 5 is extended; one end of the first rotating shaft 3 passes through the side wall of the shell 1 and is connected to a handle, and a handle 2 is installed on the top wall of the shell 1; first carry the shell 1 to the specified position, and then place the main unit on the placement rack 8 and connect it to the cable 6. The probe 7 is extended to a long length to ensure that the probe 7 can enter the water surface normally. Then the operator rotates the first rotating shaft 3 to release the line. While the first rotating shaft 3 is rotating, the transmission mechanism is used to inflate the telescopic cylinder 9 with the air pump 10. Under the action of air pressure, the telescopic cylinder 9 extends, pushing the cable rack 5 to extend, and the probe 7 is moved to the appropriate position and then the operation is stopped. At this time, the water depth can be obtained by observing the reading displayed on the main unit. The entire operation process can be completed by one person, and the probe 7 does not need to be held, and there is no error caused by human operation, thereby improving the accuracy of the depth measurement result.

[0032] See also Figure 1 and Figure 4, the cable rack 5 is composed of a fixed rack 501, a first movable rack 502 and a second movable rack 503. The fixed rack 501 is fixed inside the housing 1. The first movable rack 502 is slidably installed on the fixed rack 501. The second movable rack 503 is slidably installed on the first movable rack 502. A connecting plate 508 is fixed to the bottom of the end of the second movable rack 503 away from the housing 1. One end of the telescopic cylinder 9 is fixedly connected to the connecting plate 508. A guide post 509 is also fixed to the end of the second movable rack 503 away from the housing 1. The cross-sections of the fixed rack 501, the first movable rack 502 and the second movable rack 503 are all "U"-shaped structures. First sliding grooves 504 are formed on both side walls of the fixed rack 501. First sliding blocks 505 are fixed to both side walls of the first movable rack 502. The first sliding blocks 505 are slidably connected to the first sliding grooves 504. Second sliding grooves 506 are formed on both side walls of the first movable rack 502. Second sliding blocks 507 are fixed to both side walls of the second movable rack 503. The second sliding blocks 507 are slidably connected to the second sliding grooves 506. When the telescopic cylinder 9 pushes the cable rack 5 to expand and contract, the second movable rack 503 first slides inside the first movable rack 502. If more measurement results are needed, continue to pay out the wire. At this time, the first movable rack 502 slides inside the fixed rack 501 to expand the measurement range.

[0033] Refer to Figure 2 and Figure 5 , the telescopic cylinder 9 includes a fixed cylinder 901 fixed inside the housing 1. An activity cylinder 902 is movably sleeved inside the fixed cylinder 901. An activity rod 903 is movably sleeved inside the activity cylinder 902. One end of the activity rod 903 is fixedly connected to the connecting plate 508. A connecting pipe 12 is fixed to one end of the fixed cylinder 901. One end of the connecting pipe 12 is connected to the air outlet pipe 11, and the other end extends into the activity cylinder 902. When inflating the inside of the telescopic cylinder 9, air first enters the activity cylinder 902 through the air outlet pipe 11 and the connecting pipe 12, thereby pushing the activity rod 903 to move. When a greater distance needs to be extended, the air pressure in the inner cavity of the activity cylinder 902 continues to increase. Eventually, the activity cylinder 902 is separated from the connecting pipe 12. At this time, under the action of air pressure, the activity cylinder 902 can move inside the fixed cylinder 901. It should be noted that, in order to prevent the activity rod 903 from detaching from the activity cylinder 902 and the activity cylinder 902 from detaching from the fixed cylinder 901, limit blocks are provided at the ends of the activity cylinder 902 and the fixed cylinder 901 to prevent detachment. This is a conventional technical means and will not be elaborated here.

[0034] Refer to Figure 2 and Figure 3The transmission mechanism includes a second rotating shaft 15 rotatably mounted on the inner wall of the shell 1, a first gear 14 is mounted on the first rotating shaft 3, a second gear 16 and an elliptical wheel 17 are mounted on the second rotating shaft 15, the first gear 14 is meshed with the second gear 16, the elliptical wheel 17 contacts the handle of the air pump 10, and a spring 13 is mounted on the piston rod of the air pump 10; when the user rotates the first rotating shaft 3 to release the line, the first gear 14 drives the second gear 16 to rotate, so that the elliptical wheel 17 pushes the handle of the air pump 10 to move, and cooperates with the spring 13 to achieve uninterrupted inflation operation, and the gear ratio of the first gear 14 to the second gear 16 of the present application is 3:1, that is, the first gear 14 rotates one circle, and the second gear 16 rotates three circles, thereby speeding up the inflation frequency and facilitating the extension of the telescopic cylinder 9. It is worth noting that the gear ratio of the first gear 14 to the second gear 16 can be adjusted according to specific needs.

[0035] Embodiment 2: Based on Embodiment 1, in order to facilitate the recovery of the cable rack 5 after the measurement is completed, in this embodiment, refer to Figure 6 , Figure 7 and Figure 8 As shown, a sleeve 18 is fixedly sleeved on one end of the air outlet pipe 11 close to the telescopic cylinder 9, and the sleeve 18 is slidably connected to the bottom wall of the shell 1, a magnetic member 25 is fixed on one end of the sleeve 18 close to the connecting pipe 12, and an adsorption member 26 is fixed on one end of the connecting pipe 12 close to the sleeve 18; a ratchet 19 is installed on the first rotating shaft 3, a support rod 20 is installed on the sleeve 18, a support block 21 is fixed on the top of the support rod 20, a mounting block 22 is fixed on the support block 21, a fixed shaft 23 is fixed on the mounting block 22, a ratchet 24 is rotatably installed on the fixed shaft 23, and the ratchet 24 is rotatably connected to the fixed shaft 23. A torsion spring is arranged between the fixed shafts 23; in the present embodiment, the air outlet pipe 11 and the connecting pipe 12 are connected by magnetic attraction, the magnetic member 25 is an annular magnet, and the adsorption member 26 is an annular iron block, which is convenient for disassembly and assembly. When the cable rack 5 needs to be retracted, the first rotating shaft 3 is rotated in the opposite direction to reel in the cable 6, and under the action of the ratchet 19 and the ratchet teeth 24, the sleeve 18 is driven to move away from the connecting pipe 12. At this time, the air outlet pipe 11 is separated from the connecting pipe 12, and the telescopic cylinder 9 is automatically depressurized. The cable rack 5 can be automatically retracted by slightly tilting the shell 1 while reeling in the cable.

[0036] The working principle of the present invention is as follows: first, the housing 1 is carried to the designated location, and then the main unit is placed on the placement frame 8 and connected to the cable 6. The probe 7 is extended to a certain length in advance to ensure that the probe 7 can normally enter the water surface. Then, the operator rotates the handle (not shown) to rotate the first rotating shaft 3 to release the line. Figure 6For example, the first rotating shaft 3 rotates counterclockwise to release the line. While the first rotating shaft 3 rotates, the first gear 14 drives the second gear 16 to rotate, so that the elliptical wheel 17 pushes the handle of the air pump 10 to move, and cooperates with the spring 13 to achieve uninterrupted air pumping operation, inflating the telescopic cylinder 9, and the air first enters the movable cylinder 902 through the air outlet pipe 11 and the connecting pipe 12, thereby pushing the movable rod 903 to move, so that the probe 7 moves to a suitable position and then stops operating. At this time, the water depth can be obtained by observing the reading displayed on the host. The whole operation process only requires one person to complete, and the probe 7 does not need to be held, and there is no error caused by human operation, which improves the accuracy of the depth measurement result. If a larger extension distance is required, the first rotating shaft 3 is continuously rotated, and the air pressure in the inner cavity of the movable cylinder 902 continues to increase. Finally, the movable cylinder 902 is separated from the connecting pipe 12. At this time, under the action of air pressure, the movable cylinder 902 can move in the fixed cylinder 901;

[0037] When the cable rack 5 needs to be retracted after the measurement is completed, the first rotating shaft 3 is rotated clockwise to reel in the cable. At this time, under the action of the ratchet 19, the ratchet 24, the support rod 20 and the sleeve 18 are pushed to move away from the connecting pipe 12, and the connecting pipe 12 is separated from the air outlet pipe 11, and the gas in the telescopic cylinder 9 is automatically discharged. Then the user slightly tilts the shell 1, and under the action of gravity, the cable rack 5 can be slid back without taking up a large space, which is convenient for carrying and transportation.

[0038] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A portable shallow water depth sounder, comprising a housing (1) with openings on both side walls, characterized in that: First rotating shafts (3) are rotatably mounted on both inner walls of the housing (1), a winding roller (4) is fixed between the two first rotating shafts (3), a retractable cable rack (5) is fixed inside the housing (1), a cable (6) is wound around the winding roller (4), one end of the cable (6) passes through the cable rack (5) and is connected to a probe (7), a placement rack (8) is mounted on the top wall of the housing (1) for placing a host, and the other end of the cable (6) passes through the housing (1) and is connected to the host; Two telescopic cylinders (9) are symmetrically mounted on the bottom wall of the shell (1), and air pumps (10) are mounted on both side walls of the shell (1). The air outlet pipes (11) of the two air pumps (10) are respectively connected to the two telescopic cylinders (9). A transmission mechanism is arranged between the first rotating shaft (3) and the air pump (10), and the first rotating shaft (3) is rotated to push the cable rack (5) to extend while the cable (6) is released. The cable rack (5) is composed of a fixed rack (501), a first movable rack (502) and a second movable rack (503); the fixed rack (501) is fixed inside the housing (1); the first movable rack (502) is slidably mounted on the fixed rack (501); the second movable rack (503) is slidably mounted on the first movable rack (502); a connecting plate (508) is fixed to the bottom of the second movable rack (503) at one end away from the housing (1); one end of the telescopic cylinder (9) is fixedly connected to the connecting plate (508); and a guide column (509) is also fixed to the end of the second movable rack (503) away from the housing (1); The telescopic cylinder (9) comprises a fixed cylinder (901) fixed in the housing (1), a movable cylinder (902) movably mounted in the fixed cylinder (901), a movable rod (903) movably mounted in the movable cylinder (902), one end of the movable rod (903) being fixedly connected to a connecting plate (508), a connecting pipe (12) being fixed to one end of the fixed cylinder (901), one end of the connecting pipe (12) being connected to an air outlet pipe (11), and the other end extending into the movable cylinder (902); The transmission mechanism comprises a second rotating shaft (15) rotatably mounted on the inner wall of the housing (1); a first gear (14) is mounted on the first rotating shaft (3); a second gear (16) and an elliptical wheel (17) are mounted on the second rotating shaft (15); the first gear (14) is meshed with the second gear (16); the elliptical wheel (17) contacts the handle of the air pump (10); and a spring (13) is sleeved on the piston rod of the air pump (10); A sleeve (18) is fixedly sleeved on one end of the air outlet pipe (11) close to the telescopic cylinder (9), and the sleeve (18) is slidably connected to the bottom wall of the housing (1), a magnetic component (25) is fixed on one end of the sleeve (18) close to the connecting pipe (12), and an adsorption component (26) is fixed on one end of the connecting pipe (12) close to the sleeve (18); A ratchet wheel (19) is installed on the first rotating shaft (3). A support rod (20) is installed on the sleeve (18). A support block (21) is fixed to the top of the support rod (20). A mounting block (22) is fixed to the support block (21). A fixed shaft (23) is fixed to the mounting block (22). A ratchet tooth (24) is rotatably installed on the fixed shaft (23), and a torsion spring is arranged between the ratchet tooth (24) and the fixed shaft (23).

2. A portable shallow water depth sounder according to claim 1, characterized in that: The cross-sections of the fixed frame (501), the first movable frame (502) and the second movable frame (503) are all "U"-shaped structures. First sliding grooves (504) are formed on both side walls of the fixed frame (501). First sliding blocks (505) are fixed to both side walls of the first movable frame (502). The first sliding blocks (505) are slidably connected to the first sliding grooves (504). Second sliding grooves (506) are formed on both side walls of the first movable frame (502). Second sliding blocks (507) are fixed to both side walls of the second movable frame (503). The second sliding blocks (507) are slidably connected to the second sliding grooves (506).

3. A portable shallow water depth sounder according to claim 1, characterized in that: One end of the first rotating shaft (3) penetrates through the side wall of the housing (1) and is connected with a handle. A handle (2) is installed on the top wall of the housing (1).

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