84results about How to "Overflow will not" patented technology

The invention relates to the technical field of sensors, in particular to a high-frequency sensor and a manufacturing method thereof. The high-frequency sensor comprises a first matching layer, a PCB, a piezoelectric ceramic piece and a second matching layer which are arranged in a shell, wherein one face of the first matching layer is connected with the upper bottom face of the shell, and the other face of the first matching layer is connected with one face of the PCB; the other side of the PCB is connected with one side of the piezoelectric ceramic piece, the other side of the piezoelectric ceramic piece is connected with the second matching layer, and the other side of the second matching layer is used for transmitting ultrasonic signals outwards. The sensor further comprises a vibration reduction glue layer, the vibration reduction glue layer is arranged on the outer side of the second matching layer, and an arc structure is arranged on the vibration reduction glue layer. The invention further discloses a method for manufacturing the sensor with the arc-shaped structure. Due to the design of the arc-shaped structure, the emission sound pressure and the receiving sensitivity of the product are not influenced by forced clamping of the shell wall. The arc-shaped structure is easy to manufacture, simple in process, low in cost and less in time consumption.

The invention provides a rainwater and sewage mixing pipeline system and a manhole cover thereof, and belongs to the technical field of drainage. The manhole cover comprises a cover body and an anti-overflow component, wherein the cover body comprises a water inlet and a water outlet, and a flowing channel is formed between the water inlet and the water outlet; and the anti-overflow component is arranged in the flowing channel, enables smoothness from the water inlet to the water outlet, and enables blockage from the water outlet to the water inlet. After the manhole cover of a rainwater and sewage mixing pipeline system is arranged behind a drainage pipeline, bad smell generated by sewage cannot overflow from the manhole cover when the sewage flows in the drainage pipeline, the environment cannot be influenced, and the effect of environmental friendliness can be achieved.

The invention discloses a convenient spill-proof urine sampler. The urine sampler comprises a collection box and a cavity arranged in the collection box. A top wall of the cavity is provided with an urine inlet which penetrates upper and lower portions. When a user carries out urine collection, urine enters through the urine inlet, a quantitative mechanism is arranged in the cavity, the quantitative mechanism includes a flow guiding block, and the flow guiding block is provided with a flow guiding cavity which is opened upwardly. In the invention, the urine can be automatically quantified, a specified volume of urine is poured into a urine cup, and the excess urine is discharged. An overflow condition during a collection process where the urine cup is held by hands is avoided, and convenience of urine collection is improved. Because the urine in the urine cup is moderate in volume, the urine does not overflow during movement, and good practicability is possessed.

The invention relates to a liquid system (10, 21, 24) for a motor vehicle (1), having at least one supply line (11) which can be supplied with a liquid, and at least one functional unit which can be arranged on a movable component (7) of the motor vehicle (1) and is connected in a communicating manner to the supply line (11), wherein the supply line (11) has at least one immovable line portion (12) which can be arranged on an immovable component (2) of the motor vehicle (1) and at least one movable line portion (13) which can be arranged on the movable component (7) and is connected to the functional unit. In order to ensure a leakage-proof supply of the functional unit with the liquid, the supply line (11) has at least one rotary coupling (14, 20, 25) via which the immovable line portion(12) is connected in a communicating manner to the movable line portion (13).

The invention relates to the technical field of cement mechanical equipment, in particular to a cement bin cement overflow device with an alarming function. The cement bin cement overflow device comprises a cement bin body. The middle of the bottom face of the cement bin body is provided with a discharge outlet. A left support pillar and a right support pillar are arranged on the left side and the right side of the bottom face of the cement bin body correspondingly. The top of the left side of the cement bin body is provided with an overflow opening connected with an overflow pipe. An overflow barrel is arranged on the left side of the left support pillar. Sliding rails are arranged on the left side and the right side inside the overflow barrel correspondingly. A movable barrel is arranged on the sliding rails. A red light spring type switch and a sound spring type switch are arranged on the left side and the right side of the inner bottom face of the overflow barrel correspondingly. An alarming horn is arranged on the bottom face of the overflow barrel. An alarming red light is arranged in the middle of the left side face of the overflow barrel. The cement bin cement overflow device has the advantages that the structure is simple, operation is convenient, simple and easy, and the cost is low; the effect that cement does not overflow a cement bin can be ensured, and environmental pollution and product waste are avoided.

The invention relates to a biological culture reaction device. The biological culture reaction device comprises a culture bin and a pressurizing assembly, wherein the pressurizing assembly comprises an inner pressure head, an upper pressure plate, a lower pressure plate and a pressure spring, wherein the upper pressure plate is fixedly connected to the upper end surface of the inner pressure headthrough a bolt, the lower end of the inner pressure head is sleeved with the lower pressure plate, a lug boss is arranged at the lower part of the inner pressure head, a protruded ring is arranged atthe upper end of a through hole of the lower pressure plate, the lower pressure plate is axially positioned through the cooperation between a protruded ring and the lug boss at the lower part of the inner pressure head and then can move upwards together with the inner pressure head; the inner pressure head is externally sleeved with the pressure spring, and two ends of the pressure spring are respectively in contact connection with the upper pressure plate and the lower pressure plate; and the inner pressure head and the lower pressure plate are respectively in pressure contact connection witha silica gel film piece in the culture bin, the lower pressure plate is used for compressing the silica gel film piece to the upper end surface of a culture tank body so as to tightly seal the spacebetween the silica gel film piece and the upper end surface of the culture tank, and the inner pressure head is used for supplying a preset pressure to a liquid in the culture tank through the silicagel film piece. The biological culture reaction device can be applied to an automatic biological reaction tester, and the pollution caused by a reactor can be furthest reduced.