Water depth adjustable water sampling device

Abstract

The utility model relates to a water depth adjustable water sampling device which comprises a scale cable and a sampling bottle, the scale cable is connected with a counterweight seat, a cavity is arranged in the counterweight seat, an electric push rod is arranged in the cavity, the electric push rod is connected with a first screw rod, a baffle ring is arranged at the top of the sampling bottle, an exhaust hole is formed in the side wall of the baffle ring, and valve ports are formed in the top and the bottom of the sampling bottle. The valve ports are matched with valve cores, a valve rod is connected between the two valve cores, the valve rod is sleeved with a spring, and the spring abuts against the upper surface of the valve core on the lower side and the top in the sampling bottle. During use, after the sampling bottle is put into water by a proper depth by referring to the scale cable, the electric push rod is controlled to be shortened to drive the two valve cores to move upwards relative to the sampling bottle to open the valve ports, water can flow into the sampling bottle, and the two valve cores are driven to respectively abut against the two valve ports to close the two valve ports by controlling the electric push rod to be extended under the resilience force of the spring. And water at different depths in a water area can be conveniently sampled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water sample sampling technical field, especially relate to a water depth adjustable water sample sampling device. BACKGROUND

[0002] Currently, water pollution is still a major environmental problem faced by the world. Water bodies are affected by various pollution sources, including industrial emissions, loss of fertilizers and pesticides in agricultural activities, discharge of domestic sewage, and accumulation of plastics and heavy metals. These pollutants not only reduce water quality and affect human drinking water safety, but also cause serious damage to aquatic ecosystems. For example, excessive nutrients such as nitrogen and phosphorus can lead to water eutrophication, which in turn triggers the proliferation of algae, consumes oxygen in water, and causes the death of aquatic plants and animals, reducing biodiversity. In addition, pollutants can accumulate through the food chain, affecting wider ecosystems and human health. Therefore, controlling and managing water pollution is an important task for protecting the environment and maintaining public health. Based on this, it is necessary to sample and detect water in selected water areas to determine the pollution of water quality.

[0003] In the prior art, when water sampling is performed, a water bucket is often connected by a connecting rod or a rope, the water bucket has an open upper end structure, and the water bucket is placed in water through the connecting member to take water. However, this water taking method can only take water from the surface of the water area. Based on the actual detection process, it is necessary to detect the pollution of water samples at different water depths, so it is necessary to take water samples at different depths of the water area, which leads to the fact that the existing water sampling method is not applicable. UTILITY MODEL CONTENT

[0004] The utility model provides a water depth adjustable water sample sampling device, after the sampling bottle is placed in water at a suitable depth through the reference scale cable, the valve core at the top and bottom of the sampling bottle is opened through the electric push rod, and water at different depths of the water area can be conveniently sampled.

[0005] The utility model adopts the technical scheme of:

[0006] The utility model provides a water depth adjustable water sample sampling device, including graduated cable and sampling bottle, the graduated cable is connected with counterweight seat, the cavity is equipped in the counterweight seat, the top of the cavity is equipped with electric push rod, the electric push rod is connected with screw rod no.

[0007] Further, the upper valve core is equipped with positioning rod on both sides, the sampling bottle top is equipped with a plurality of positioning hole, the positioning rod is equipped in the positioning hole.

[0008] Further, the graduated cable is connected with control shell, and the control shell is provided with a switch.

[0009] Further, the control shell is equipped with support, screw rod no.

[0010] Further, the upper portion and the lower portion of the screw rod no.

[0011] Further, the graduated cable is equipped with scale line.

[0012] Further, the valve core and valve port are the taper structure of matching.

[0013] Further, the counterweight seat is equipped with a plurality of cavities along its length direction, and the electric push rod is arranged in the cavity.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1, use graduated cable to hang counterweight seat and sampling bottle, have the effect of power supply and connecting weight, under the action of gravity, sampling bottle can be flexibly adjusted to different depths under water, and it is convenient to put and store.

[0016] 2, sampling bottle is detachably connected with screw rod no.

[0017] 3. When the sampling bottle is lowered into the water, the air is discharged from the upper valve port and the water flows into the sampling bottle from the lower valve port by controlling the electric push rod to shorten and drive the two valve cores to move upward relative to the sampling bottle to open the two valve ports, and then the electric push rod is controlled to extend, and the two valve cores are driven to close the two valve ports under the rebounding force of the spring, so that the water at different depths of the water area can be conveniently sampled. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is an enlarged view of A in Figure 1

[0020] In the figure: 1, sampling bottle; 2, scale cable; 3, scale line; 4, control shell; 5, switch; 6, clamping plate; 7, support; 8, screw two; 9, knob; 10, counterweight seat; 11, valve port; 12, valve core; 13, spring; 14, valve rod; 15, positioning hole; 16, positioning rod; 17, exhaust hole; 18, retaining ring; 19, cavity; 20, electric push rod; 21, screw one; 22, internal thread hole. DETAILED DESCRIPTION

[0021] In order to better understand the technical content of the utility model, specific embodiments are provided below, and the utility model is further described in combination with the drawings.

[0022] Referring to Figures 1 to 2 ​The utility model provides a water depth adjustable water sample sampling device, including scale cable line 2 and sampling bottle 1, scale cable line 2 has the core inside and has the sheath outside, has the effect of power supply and connection weight, also convenient to put and store, scale cable line 2 is connected with counterweight seat 10, the cavity 19 is equipped in counterweight seat 10, the top fixed of cavity 19 is equipped with electric push rod 20, the telescopic end of electric push rod 20 is fixedly connected with screw rod no. 1 21, screw rod no. 1 21 is slidably arranged on the bottom of cavity 19, sampling bottle 1 top is fixedly equipped with the baffle ring 18, the baffle ring 18 lateral wall is equipped with multiple exhaust holes 17, sampling bottle 1 top and bottom are relatively equipped with valve port 11, two valve ports 11 are matched with valve core 12, and valve core 12 and valve port 11 are all the matching frustum structure, and the valve rod 14 in sampling bottle 1 is connected between two valve cores 12, and the valve rod 14 both ends are fixedly connected in two valve cores 12, and the spring 13 is sleeved on the valve rod 14, and the spring 13 both ends are respectively abutted on the upper surface of lower valve core 12 and the top in sampling bottle 1, and the resilience of spring 13 can make valve core 12 generate the tendency of downward movement, and two valve cores 12 are respectively inserted into the upper portion of two valve ports 11, so that two valve ports 11 are closed simultaneously, and the top of upper valve core 12 is equipped with the internal thread hole 22 matched with screw rod no. 1 21, and sampling bottle 1 and screw rod no. 1 21 are designed into the detachable connection mode, which is convenient for sampling bottle 1 to be removed for sample storage after sampling is completed, and the upper valve core 12 is located in the baffle ring 18;

[0023] Install sampling bottle 1: first control electric push rod 20 elongation drives screw rod no. 1 21 to move down, the lower end of screw rod no. 1 21 is aligned on the internal thread hole 22 on the upper valve core 12, and screw rod no. 1 21 is rotated into the internal thread hole 22 by rotating sampling bottle 1, when the lower end of screw rod no. 1 21 is abutted on the bottom of internal thread hole 22, the baffle ring 18 should be with the clearance distance of the lower surface of counterweight seat 10, so as to be beneficial to the screwing of sampling bottle 1 on screw rod no. 1 21, avoid sampling bottle 1 to fall in the sampling process, at this moment, under the resilience of spring 13, two valve ports 11 are in the closed state;

[0024] The sampling bottle 1 and the counterweight seat 10 are quickly released at different depths of water under the action of the gravity of the sampling bottle 1 and the counterweight seat 10 and the like, the sampling bottle 1 is conveniently released at different depths of water by referring to and releasing the scale cable 2, when the sampling bottle 1 is lowered to the appropriate depth under water, the screw rod one 21 is driven to move upward based on the rebounding force of the spring 13 in the state that the valve port 11 is closed, the screw rod one 21 drives the sampling bottle 1 to move upward through the upper valve core 12, the sampling bottle 1 drives the blocking ring 18 on it to abut against the lower surface of the counterweight seat 10, with the further shortening of the electric push rod 20, the electric push rod 20 drives the upper valve core 12 to move upward relative to the sampling bottle 1 through the screw rod one 21, at the same time, the upper valve core 12 drives the lower valve core 12 to move upward through the valve rod 14, and the spring 13 is compressed by the upper surface of the lower valve core 12 in the sampling bottle 1, so that the two valve ports 11 are opened at the same time, air is discharged from the upper valve port 11, and water flows into the sampling bottle 1 from the lower valve port 11, after the opening of the valve port 11 for the preset time, the electric push rod 20 is controlled to be elongated, the lower valve core 12 is driven to move downward relative to the sampling bottle 1 based on the rebounding force of the spring 13, the lower valve core 12 drives the upper valve core 12 to move downward at the same time through the valve rod 14, and the two valve ports 11 are closed at the same time, so as to avoid the water in the sampling bottle 1 from leaking out, the sampling bottle 1 is lifted through the scale cable 2 to complete the sampling, and the water at different depths of the water area can be conveniently sampled.

[0025] Preferably, the upper valve core 12 is fixed with the L-shaped positioning rod 16 on both sides, the sampling bottle 1 is provided with the positioning hole 15 on both sides of the top, and the lower side of the positioning rod 16 is slidably arranged in the positioning hole 15. Since the positioning rod 16 can slide in the positioning hole 15 and the valve core 12 cannot rotate relative to the sampling bottle 1 in the process of opening and closing the valve port 11, the valve core 12 cannot rotate relative to the sampling bottle 1 when the internal thread hole 22 is screwed on the screw rod one 21, and the sampling bottle 1 is conveniently rotated to connect the valve core 12 to the screw rod one 21,

[0026] Preferably, the scale cable 2 is connected with the control shell 4, the control shell 4 is provided with the switch 5, the switch 5 is a common on-off switch 5 on the market, and a storage battery can be further arranged in the control shell 4. The storage battery can be connected to the electric push rod 20 for power supply through the switch 5 and the scale cable 2, the extension and shortening of the electric push rod 20 can be conveniently controlled through the switch 5. It needs to be noted that the connection of the storage battery, the switch 5, the scale cable 2 and the electric push rod 20 is a common knowledge, which will not be described here.

[0027] Preferably, the control shell 4 is fixed with an L-shaped support 7, a screw rod 8 is threaded through the support 7, one end of the screw rod 8 is connected with a clamping plate 6, the other end of the screw rod 8 is fixed with a knob 9, and the knob 9 rotates the screw rod 8 to drive the clamping plate 6 to move towards the side wall of the control shell 4. The design has the following effects: when sampling, the control shell 4 and the clamping plate 6 can be first placed on the ship rail or other fixed objects on the ship, then the clamping plate 6 is driven to move towards the side wall of the control shell 4 by rotating the screw rod 8, and the clamping plate 6 and the side wall of the control shell 4 are clamped on the ship rail to fix the control shell 4, so that the sampling device is prevented from falling into the water and causing loss when the scale cable 2 is released into the water.

[0028] Preferably, the screw rod 21 has a light rod section and a threaded section at the upper and lower parts, respectively, the light rod section is slidably arranged on the bottom of the cavity 19, and the light rod section and the bottom of the cavity 19 are sealingly connected by a sealing ring or the like. In this way, water can be prevented from entering the cavity 19 during sampling. In addition, a waterproof electric push rod 20 can also be selected.

[0029] Preferably, the scale cable 2 is provided with a scale line 3, and the scale line 3 can be used to conveniently confirm the depth of the sampling bottle 1 under water.

[0030] Preferably, the counterweight seat 10 is provided with a plurality of cavities 19 along the length direction, and each cavity 19 is provided with an electric push rod 20. In this way, different water samples at different water depths can be sampled at one time during the rising or falling of the sampling bottle 1 under water.

[0031] The above only describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A water depth adjustable water sampling device, characterized in that: Including scale cable line and sampling bottle, the scale cable line is connected with counterweight seat, the cavity is arranged in the counterweight seat, the top of the cavity is provided with electric push rod, the electric push rod is connected with screw rod one which is slidably arranged in the bottom of the cavity, the sampling bottle is provided with retaining ring on the top, the retaining ring is provided with exhaust hole on the side wall, the top and the bottom of the sampling bottle are relatively provided with valve port, the two valve ports are matched with valve core, the valve rod is connected between the two valve cores in the sampling bottle, the spring is sleeved on the valve rod, the spring is abutted on the upper surface of the lower valve core and the top in the sampling bottle, the spring rebound force can make the valve core move downward, the two valve cores are respectively inserted into the upper part of the two valve ports, the valve port is closed, the top of the upper valve core is provided with internal thread hole matched with screw rod one, the upper valve core is located in the retaining ring.

2. The water depth adjustable water sampling device according to claim 1, wherein: The upper valve core is provided with positioning rod on both sides, the sampling bottle is provided with multiple positioning holes on the top, the positioning rod is slidably arranged in the positioning hole.

3. The water depth adjustable water sampling device according to claim 1, wherein: The scale cable line is connected with control shell, the control shell is provided with switch.

4. The water depth adjustable water sampling device according to claim 3, characterized in that: The control shell is provided with support, the screw rod two is threadedly arranged on the support, the clamping plate is connected to one end of the screw rod two, the other end of the screw rod two is provided with knob, rotating the screw rod two can drive the clamping plate to move to the side wall of the control shell.

5. The water depth adjustable water sampling device according to claim 1, wherein: The upper part and the lower part of the screw rod one are provided with light rod section and thread section respectively, the light rod section is slidably arranged on the bottom of the cavity.

6. The water depth adjustable water sampling device according to claim 1, wherein: The scale cable line is provided with scale line.

7. The water depth adjustable water sampling device according to claim 1, wherein: The valve core and the valve port are matched with conical frustum structure.

8. The water depth adjustable water sampling device according to claim 1, wherein: Multiple cavities are arranged in the counterweight seat along the length direction, and the electric push rod is arranged in each cavity.

Images