4results about How to "Reduce contact force" patented technology

An electric wire with terminal (1) includes an electric wire (2) including a conductor (3) and an insulating layer (4) covering the conductor (3), and a terminal (5) including a hollow portion (7) into which the conductor (3) exposed at an end portion of the electric wire (2) is inserted. The terminal (5) is connected to the conductor (3) by compressing the hollow portion (7) with the conductor (3) being inserted into the hollow portion (7). A tensile strength of a material used for the conductor (3) is greater than a tensile strength of a material used for the terminal (5). The terminal (5) includes at least three compressed portions (10) in a longitudinal direction of the conductor (3). When a cross-sectional area of the conductor (3) is S (mm2), a compression width which is a length in the longitudinal direction of the compressed portion (10) is W (mm), and a compression interval which is a length in the longitudinal direction of a non-compressed portion (11) located between adjacent compressed portions (10) is L (mm), the compression width W and the compression interval L, respectively, satisfy formulas (1) and (2): 0.01×S+2.5≤W≤0.07×S+3.5 and −1.0≤L≤0.145×S+3.75

The invention relates to the technical field of ball valves, in particular to an air cooler ball valve which comprises a valve body, a valve ball is rotatably connected to the inner wall of the valve body, a flexible sealing assembly is fixedly connected to the valve ball, a valve rod is fixedly connected to the valve ball, a handle is installed at the top end of the valve rod, and an inflation positioning assembly is fixedly connected to the lower portion of the handle. An adjusting assembly is arranged on the outer wall of the inflation positioning assembly in a sliding fit mode, two limiting sleeves are arranged on the valve body, the flexible sealing assembly is arranged on the valve ball, after the valve ball stops rotating, the adjusting assembly can drive the inflation positioning assembly to automatically inflate an annular air bag in the flexible sealing assembly, the annular air bag is made of a flexible material, and therefore the sealing effect is improved. After being inflated, the valve ball can be tightly attached to the gap between the valve ball and the valve body, self-adaptive sealing is achieved, the sealing reliability is further improved, the problems of unstable system pressure and out-of-control flow caused by medium leakage can be effectively solved, and the operation efficiency of the air cooler is ensured.

This invention relates to the field of visual inspection technology for sealing rings, specifically to an optical inspection device and method for sealing rings based on internal support rotation. The device includes: a stepping rotating frame with multiple tensioning structures connected to each tensioning structure, and a detection drive wheel with a recessed portion in the center of each drive wheel; a visual inspection module for inspecting the sealing ring tensioned by the drive wheel; the visual inspection module can perform multiple inspection actions on the sealing ring, and the traction structure, in conjunction with a guide groove, allows the sealing ring to be twisted at a certain angle, repositioning it so that it faces the inspection module, allowing the visual inspection module to perform inspection actions again, ensuring a more comprehensive inspection of the sealing ring and improving the inspection effect.

The invention discloses a water level detection emergency broadcasting device which comprises a mounting frame fixedly mounted at the top of one side of a water level dam, a supporting frame is fixedly mounted at the top of the mounting frame, and a supporting disc is fixedly mounted at the top of the supporting frame. According to the invention, the emergency loudspeaker broadcast work can be automatically started, so that residents can take preventive measures in advance or evacuate emergently after being notified by the broadcast, and the situation of flood hidden dangers caused by rising of water level can be effectively prevented; the adjustment of the circumferential direction of the emergency loudspeaker broadcast body and the adjustment of the left-right elevation angle position of the emergency loudspeaker broadcast body can be carried out at the same time, so that the range of the emergency broadcast can be expanded, and the situation that some resident address positions cannot be notified by broadcast due to remote places can be effectively prevented; therefore, the emergency situation that the water level rises can be spread to each resident home more efficiently, the limitation that the emergency broadcast range is small in the past is greatly reduced, and popularization and use are facilitated.