Sampling device for municipal sewage treatment

Abstract

The utility model relates to a sampling device for municipal sewage treatment, which comprises a water storage tank body, lifting handle mounting blocks are symmetrically arranged on two sides of the outer wall of the water storage tank body, flexible lifting handles are connected onto the lifting handle mounting blocks, a plurality of annular water storage cavities are arranged in the water storage tank body, conical mounting parts are arranged on the bottom surfaces of the water storage cavities, and the flexible lifting handles are connected onto the mounting parts. Water inlet cylinders are arranged below the mounting parts, a lifting rod is arranged in the water storage cavity, a piston block is arranged at the lower end of the lifting rod, and a sealing opening allowing the lifting rod to penetrate through is formed in the top face of the water storage tank body. The water storage tank is ingenious in structure, the water inlet cylinder is designed on the bottom face of the water storage tank body, the water inlet cylinder is designed in the water inlet cylinder, the lifting rod is arranged in the water storage cavity, the piston block is arranged at the lower end of the lifting rod, and the piston block is in sliding contact with the inner wall of the water storage cavity. Sewage can be sucked from the lower end of the water inlet cylinder from bottom to top by lifting the lifting rod, and a connecting hose is designed, so that the sewage can be sampled more conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and in particular relates to a sampling device for municipal sewage treatment. Background Art

[0002] Wastewater treatment is the process of purifying wastewater to meet the required water quality for discharge into a water body or reuse. Wastewater treatment is widely used in various fields, including construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscapes, healthcare, and catering, and is increasingly becoming part of everyday life.

[0003] Regarding the design of the municipal sewage sampling device, it was retrieved on November 2, 2021 that the applicant Jining Ningnengtai Water Treatment Co., Ltd. has established a municipal sewage sampling device with announcement number CN216440658U. Its technical solution discloses the design of a base, a liquid storage tank, and also includes a rubber bottom plate, a cotton pad, and a support base. A traction base is arranged in the middle of the support base, and a fixed connection panel is arranged on the outside of the traction base near the east section. A sampling cup is inserted into the through hole on the surface of the panel, and there is a rubber stopper on the sampling. Although this form has multiple sampling cups, it is not convenient for filling. The rubber stopper needs to be opened from the top, and then the sewage is poured into the sampling cup. In view of this, the applicant specially applied for this invention. Utility Model Content

[0004] In order to solve the above-mentioned problems in the prior art, the utility model provides a sampling device for municipal sewage treatment that can improve the above-mentioned deficiencies.

[0005] The utility model relates to a sampling device for municipal sewage treatment, comprising a water storage tank body, handle mounting blocks symmetrically arranged on both sides of the outer wall of the water storage tank body, a flexible handle being connected to the handle mounting blocks, a plurality of annular water storage chambers being provided in the water storage tank body, a conical mounting portion being arranged on the bottom surface of the water storage chamber, a water inlet cylinder being arranged below the mounting portion, the inner cavity of the metal cylinder being connected to the water storage chamber, a switch valve being arranged on the water inlet cylinder, a lifting rod being arranged in the water storage chamber, a piston block being arranged at the lower end of the lifting rod, the piston block being in sliding contact with the inner wall of the water storage chamber, a sealing port for the lifting rod to pass through being arranged on the top surface of the water storage tank body, an internal thread being arranged on the inner wall of the sealing port, the upper end of the lifting rod passing through the sealing port and a limit plate being arranged

[0006] Furthermore, a connecting hose is threadedly connected to the lower end of the water inlet cylinder.

[0007] Furthermore, the connecting hose has a threaded connection end.

[0008] Furthermore, a clamping block for fixing the connecting hose is provided on the bottom surface of the water storage tank body, the clamping block is provided with a clamping slot, the opening surface of the clamping slot has relatively arranged outer protrusions, and the clamping block is fixed to the bottom surface of the water storage tank body by screws.

[0009] Furthermore, the piston block includes a circular plate body, a groove is provided on the side edge of the circular plate body, a first rubber ring is provided on the outer periphery of the circular plate body, a tongue is provided on the inner wall of the first rubber ring, the first rubber ring is arranged in the groove of the circular plate body through the tongue, an annular groove is provided on the bottom surface of the circular plate body, a second rubber ring is provided in the annular groove, and the outer wall of the first rubber ring is in close contact with the inner wall of the water storage chamber.

[0010] Furthermore, a plurality of supporting legs are provided on the lower side of the outer wall of the water storage tank, and the length of the supporting legs is greater than the total length of the mounting portion and the water inlet cylinder.

[0011] Furthermore, the lower end surface of the lifting rod is provided with an external thread matching the internal thread.

[0012] Furthermore, a Cr base layer and a CrN layer are provided on the inner wall of the water storage cavity.

[0013] Furthermore, a conical sampling head is provided on the connecting hose.

[0014] The structure of the utility model is cleverly designed, wherein a water inlet cylinder is designed on the bottom surface of the water storage tank body, and a water inlet cylinder is designed inside the water inlet cylinder. A lifting rod is provided in the water storage chamber, and a piston block is provided at the lower end of the lifting rod. The piston block is in sliding contact with the inner wall of the water storage chamber. By pulling the lifting rod, the sewage can be sucked from the bottom to the top through the lower end of the water inlet cylinder. A connecting hose is also designed to make it more convenient to sample the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the bottom structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the connection between the block and the bottom surface of the water storage tank.

[0018] Figure 4 Schematic diagram of the connecting hose structure.

[0019] Figure 5 Schematic diagram of the piston block structure.

[0020] Figure 6 Schematic diagram of the inner wall of the water storage chamber.

[0021] Figure 7This is a schematic diagram of the water storage tank structure after the lifting rod is lifted.

[0022] Illustration: 1 water storage tank body, 2 handle mounting block, 3 flexible handle, 4 water storage chamber, 41Cr base layer, 42CrC transition layer, 43CrN layer, 5 sealing port, 6 limit plate, 7 piston block, 70 circular plate body, 71 first rubber ring, 701 slot, 702 tongue, 703 second rubber ring, 7010 circumferential slot, 8 external thread, 9 lifting rod, 10 mounting part, 11 water inlet cylinder, 12 valve switch, 13 supporting leg, 14 connecting hose, 141 threaded connection end, 15 block, 16 screw, 17 external protrusion, 18 slot, 19 conical sampling head, 20 through hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] like Figure 1-6 As shown, the utility model relates to a sampling device for municipal sewage treatment, comprising Water storage tank 1. Handle mounting blocks 2 are symmetrically arranged on both sides of the outer wall of the water storage tank body. A flexible handle 3 is connected to the handle mounting block. The flexible handle is rotatably connected to the mounting block. The mounting block is a T-shaped piece with a cap. The end of the flexible handle is sleeved on the T-shaped piece. The water storage tank body has a plurality of annular water storage cavities 4. The bottom surface of the water storage cavity is provided with a conical mounting portion 10. A water inlet cylinder 11 is provided below the mounting portion. The mounting portion has a conical cavity, which is connected to the water storage cavity. The inner cavity of the water inlet cylinder is connected to the The water storage chambers are connected, and a switch valve 12 is provided on the water inlet cylinder. A lifting rod 9 is provided in the water storage chamber, and a piston block 7 is provided at the lower end of the lifting rod. The piston block is in sliding contact with the inner wall of the water storage chamber, and the piston block can move up and down or rotate on the inner wall of the water storage chamber. A sealing port 5 for the lifting rod to pass through is provided on the top surface of the water storage tank body, and an internal thread is provided on the inner wall of the sealing port. The upper end of the lifting rod passes through the sealing port and is provided with a limit plate 6. The limit plate serves as a traction part for lifting and adopts a plum blossom design.

[0025] As a technical improvement, considering the problem of sewage sampling distance, the lower end of the water inlet cylinder is threadedly connected with a connecting hose 14, which has a certain degree of extensibility and is designed in the form of a bellows.

[0026] As a technical improvement, the connecting hose has a threaded connection end 141, and a matching threaded interface is correspondingly provided at the lower end of the water inlet cylinder.

[0027] As a technical improvement, a block 15 for fixing the connecting hose is provided on the bottom surface of the water storage tank body, and a slot 18 is provided on the block. The inner diameter of the slot matches the outer diameter of the connecting hose, and the block has a certain deformation ability and is made of elastic rubber. The opening surface of the slot has relatively arranged outer protrusions 17, that is, the two outer protrusions can be pried apart in opposite directions under the action of external force. In order to facilitate replacement, the outer protrusion has an inner concave arc surface. The depth of the slot satisfies the overlapping insertion of multiple connecting hoses. The block is fixed to the bottom surface of the water storage tank body by screws 16.

[0028] As a technical improvement, the piston block includes a circular plate body 70, which is made of one of the materials selected from ductile iron, alloy cast iron, and steel. A clamping hole 701 is provided on the side edge of the circular plate body, and a first rubber ring 71 is provided on the outer periphery of the circular plate body. A latch tongue 701 is provided on the inner wall of the first rubber ring. The first rubber ring is arranged in the clamping hole of the circular plate body through the latch tongue. An annular clamping groove 7010 is provided on the bottom surface of the circular plate body, and a second rubber ring 703 is provided in the annular clamping groove. The outer wall of the first rubber ring is in close contact with the inner wall of the water storage chamber.

[0029] As a technical improvement, a plurality of support legs 13 are provided on the lower side of the outer wall of the water storage tank body. The length of the support legs is greater than the total length of the mounting portion and the water inlet cylinder. As a technical improvement, the length of the support legs is adjustable or designed to be foldable.

[0030] As a technical improvement, the lower end surface of the lifting rod is provided with an external thread 8 that matches the internal thread.

[0031] like Figure 6 As shown, as a technical improvement to enhance wear and corrosion resistance, the inner wall of the water storage chamber is provided with a Cr base layer 41 and a CrN layer 43. The Cr base layer has a thickness of 5-10 nanometers, and also includes a CrC transition layer 42 disposed between the Cr base layer and the CrN layer. The main components of the inner wall of the water storage chamber are generally Fe, C, and N. The Cr in the Cr transition layer 32 combines with the C and N to form Cr-C and Cr-N molecular bonds. The CrC and CrN transition layers further strengthen these intermolecular bonds, thereby gradually enhancing the adhesion of the water storage chamber surface coating.

[0032] Furthermore, a conical sampling head 19 is provided on the connecting hose. The conical head has a hollow inner cavity and a perforation 2 on its surface. Sewage can enter the inner cavity of the conical sampling head through the perforation.

[0033] like Figure 7As shown, the utility model is very convenient to use. The water inlet cylinder at the lower end is aligned with the sewage to be sampled, and its lower end is in contact with the sewage. Then, the lifting rod is pulled upward to absorb the sewage through the piston block. Then, the lower end of the water inlet cylinder can be closed by the switch valve. At the same time, the external thread of the upper end of the lifting rod is in contact with the internal thread of the sealing port to fix the lifting rod. At the same time, it can be more convenient to inhale by adding a connecting hose. The designed supporting feet are used to support the entire water storage tank body. On the contrary, when transferring sewage, the switch valve is opened and the lifting rod is pressed downward to discharge the sewage downward.

[0034] In order to prevent large residues from entering the water storage chamber, a filter is set on the inner wall of the water inlet cylinder. The filter can only absorb sewage and prevent larger residues from being sucked in.

Claims

1. A sampling device for municipal sewage treatment, characterized in that: The utility model comprises a water storage tank body, wherein handle mounting blocks are symmetrically arranged on both sides of the outer wall of the water storage tank body, a flexible handle is connected to the handle mounting blocks, a plurality of annular water storage chambers are provided in the water storage tank body, a conical mounting portion is arranged on the bottom surface of the water storage chamber, a water inlet cylinder is arranged below the mounting portion, the inner cavity of the water inlet cylinder is connected with the water storage chamber, a switch valve is arranged on the water inlet cylinder, a lifting rod is arranged in the water storage chamber, a piston block is arranged at the lower end of the lifting rod, the piston block is in sliding contact with the inner wall of the water storage chamber, a sealing port for the lifting rod to pass through is arranged on the top surface of the water storage tank body, an internal thread is arranged on the inner wall of the sealing port, the upper end of the lifting rod passes through the sealing port and is provided with a limit plate.

2. A sampling device for municipal sewage treatment according to claim 1, characterized in that: The lower end of the water inlet cylinder is threadedly connected with a connecting hose.

3. A sampling device for municipal sewage treatment according to claim 2, characterized in that: The connecting hose has a threaded connection end.

4. A sampling device for municipal sewage treatment according to claim 2, characterized in that: The bottom surface of the water storage tank body is provided with a clamping block for fixing the connecting hose. The clamping block is provided with a clamping slot. The opening surface of the clamping slot has relatively arranged outer protrusions. The clamping block is fixed to the bottom surface of the water storage tank body by screws.

5. The sampling device for municipal sewage treatment according to claim 1, characterized in that: The piston block includes a circular plate body, a side edge surface of the circular plate body is provided with a groove, a first rubber ring is provided on the outer periphery of the circular plate body, a tongue is provided on the inner wall of the first rubber ring, the first rubber ring is arranged in the groove of the circular plate body through the tongue, an annular groove is provided on the bottom surface of the circular plate body, a second rubber ring is provided in the annular groove, and the outer wall of the first rubber ring is in close contact with the inner wall of the water storage chamber.

6. The sampling device for municipal sewage treatment according to claim 1, characterized in that: A plurality of supporting legs are provided on the lower side of the outer wall of the water storage tank, and the length of the supporting legs is greater than the total length of the mounting portion and the water inlet cylinder.

7. The sampling device for municipal sewage treatment according to claim 1, characterized in that: The lower end surface of the lifting rod is provided with an external thread matching the internal thread.

8. The sampling device for municipal sewage treatment according to claim 1, characterized in that: The inner wall of the water storage cavity is provided with a Cr base layer and a CrN layer.

9. The sampling device for municipal sewage treatment according to claim 2, characterized in that: A conical sampling head is provided on the connecting hose.

Images