5 results about "Spring truss" patented technology

The springback equipment for detecting the concrete compressive strength through the springback method comprises an installation base, a hinge block is fixedly arranged on the upper end face of the installation base, a second friction rotating shaft is arranged on the outer wall of the hinge block, and a fixing rod is rotationally installed on the outer wall of the second friction rotating shaft. A plurality of buffer springs are arranged above the fixing rod, one end of each buffer spring is connected with a rubber pad, a metal frame is fixedly installed on the outer wall of the fixing rod, a springback instrument is arranged on the outer side of the metal frame, a springback column is fixedly arranged at the bottom of the springback instrument, and the outer wall of the springback column is sleeved with a spring frame; a guide frame is fixedly arranged on the outer side of the metal frame, a connecting rod is rotationally installed in the guide frame, one end of the connecting rod is fixedly connected to a holding rod, and a protruding block is fixedly connected to one end of the holding rod. The rebound instrument is buffered and protected during use, so that the service life of the rebound instrument is prolonged, and practicability is achieved.

The utility model belongs to body -building equipment technical field, especially relates to a spring frame subassembly for body -building equipment, including frame body, a plurality of elastic tension members are connected on the frame body, one end of elastic tension member is connected in the downside of frame body, and the other end is detachably connected in the upside of frame body, a plurality of tension member limiting grooves are equipped on the frame body, tension member limiting groove and elastic tension member are set up one by one, and tension member limiting groove is used for the limiting of elastic tension member, the utility model provides a spring frame subassembly for body -building equipment, sets up limiting rotation wheel, and the elastic tension member is limited through the tension member limiting groove on it, can effectively avoid the collision between elastic tension member in the stretching process, reduces the noise, and the fluency improves.

1. Name of the designed product: spring shelf. 2. Use of the designed product: as fishing gear accessories. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The utility model relates to the technical field of sofas, in particular to a sofa seat framework structure convenient for reducing the packaging size, which comprises two support frames arranged front and back, and two spring frames symmetrically arranged between the two support frames; each supporting frame comprises a first cross rod, first supporting rods are arranged at the two ends of the first cross rod, and a limiting groove is formed in the middle of the first cross rod. Two second cross rods are arranged in front of and behind each spring frame, second supporting rods capable of being inserted into the limiting grooves are arranged at the ends, close to the limiting grooves, of the second cross rods, the other ends of the second cross rods are arranged at the top ends of the first supporting rods and connected with the first supporting rods through screws, springs are arranged between the two second cross rods, and first connecting rods are arranged between the two second supporting rods. And a second connecting rod is arranged between the two second cross rods and is far away from one end of the first connecting rod. The sofa seat framework disclosed by the utility model is reasonable in structure, convenient and fast to disassemble and assemble by adopting a split assembly structure, convenient to store and transport after being disassembled, and capable of reducing the occupied space for storage and transportation.

The utility model relates to unload grain machine technical field discloses a kind of unload grain machine with buffer shock-absorbing function, including horizontal support frame, the left side of the horizontal support frame is fixedly connected with inclined support frame, the front end of the inclined support frame is provided with control box.The unload grain machine with buffer shock-absorbing function is provided with hopper, spring frame, buffer spring and damper, when the grain conveyed falls to the inside of hopper, buffer spring can buffer hopper by the elasticity of itself, buffer hopper can effectively reduce the impact force of grain when falling, avoid grain to break or be damaged due to impact, damper in buffer spring can limit buffer spring, prevent the amplitude of hopper to be too large, the connecting plate of support block top end can slide up and down in the inside of spring frame, so that buffer spring and spring frame can be further limited, solve the problem that grain has greater impact force when falling, grain is easily broken or damaged due to impact.