6results about How to "Increase or decrease distance" patented technology

The utility model discloses a kind of steel pipe concrete arch bridge arch rib robot welding device, belong to arch welding equipment technical field.The application includes: walking assembly and the clamping assembly for clamping welding torch;Clamping assembly is set on walking assembly;Walking assembly includes base and walking structure;Walking structure is set on base;Clamping assembly includes: control module, motor, rotating seat, connecting rod, adjusting rod and clamping piece;Rotating seat rotation is set on walking assembly;One end of connecting rod is hinged with rotating seat, and the other end is hinged with one end of adjusting rod;The end of adjusting rod away from connecting rod is connected with clamping piece;Motor is connected with rotating seat, connecting rod respectively;Control module is connected with walking structure, motor circuit.The application can change the orientation of clamping piece by the rotation of rotating seat under the condition that walking structure does not move, simultaneously change the position of clamping piece by the rotation of connecting rod and adjusting rod, and then adjust the distance between welding torch and weld, and the flexibility is high.

The invention relates to the technical field of foundation reinforcement, in particular to soil pressure monitoring and early warning equipment in MJS construction, which comprises a drilling machine, a winch, a steel cable, a drill rod, a drill bit, a sleeve and a monitoring part, according to the invention, the following problems existing in the process of guniting and reinforcing a foundation soil body in the prior art can be solved: cement paste can only be sprayed by linearly moving upwards, the uniform distribution of the cement paste cannot be ensured, and the reinforcing effect on the soil body is influenced; the soil pressure of the side wall of a pile hole cannot be monitored, so that the construction process lacks controllability; by means of the multi-pipe type jet grouting pile technology, cement paste can be evenly diffused, stratum settlement can be effectively avoided, and the reinforcing effect is remarkable; according to the invention, the pressure of the soil on the side wall of the jet pile hole can be comprehensively monitored in multiple directions in the drilling and guniting processes, and the controllability in the construction process is ensured.

An injection device (10) includes a hand-held unit (100) having a head (102) and a body portion (104). The head includes a needle (110), a support portion (116), a movable portion (118), and a safety cap (122) removably coupled to the head. The movable portion moves axially relative to the support portion between an extended position and a retracted position in which a distal point of the needle is exposed. The safety cap includes a base member (123) and a locking plate (124) pivotably coupled to the base member, the locking plate pivotable between a locked position in which axial movement of the safety cap and the movable portion relative to the needle is restricted and an unlocked position in which the safety cap and the movable portion are axially movable relative to the needle.

This utility model relates to the field of rice transplanting technology and discloses a stepless speed regulation device for high-speed rice transplanters. It includes a fixed frame, an extension component fixedly connected inside the fixed frame, a positioning frame fixedly connected outside the adjustment component, and an adjustment component fixedly connected to one side of the positioning frame. The extension component includes a hydraulic rod fixedly connected inside the fixed frame, with a slider fixedly connected to one end of the hydraulic rod. The adjustment component includes a limiting block fixedly connected to one side of the positioning frame. This stepless speed regulation device for high-speed rice transplanters, through the extension component, allows for adjustment of the transplanting plate's position within the fixed frame by activating the hydraulic rod during use. The hydraulic rod drives the slider to move, which in turn moves the transplanting plate. This adjustment increases or decreases the distance between seedlings and changes the transplanting depth to accommodate different rice varieties.

The utility model discloses a high low temperature test case, it includes: box, the inner chamber wall of box all is provided with several groups of the convex board that is symmetrical distribution, and, the top of convex board is provided with adjusting assembly, and adjusting assembly includes the supporting plate, and the supporting plate sets up the top of convex board, and the lower end surface of supporting plate is provided with the threaded rod, and the other end of threaded rod is installed in the inside of convex board and extends to its below, and supporting plate can be through the rotation of threaded rod and displace on the top of convex board, and the both ends of tray are respectively clamped in the upper end surface of two supporting plates of being located in both sides. The high low temperature test case of the application adopts the supporting plate to lift the tray, changes the installation height of tray through the height of adjusting supporting plate, increases or shortens the distance between two adjacent trays, expands or reduces the containing groove between two adjacent trays, prevents the interference of the test material of bigger volume and the tray above, satisfies the simultaneous test of multiple groups of materials, is applicable to the use of different volume test material.

The utility model discloses an aircraft panel structure stringer overturning tool which comprises an overturning tool body, a first shaft body, a stringer body and placing frames, the placing frames are arranged at the two ends of the interior of the overturning tool body through the first shaft body and a second shaft body respectively, and six-dimensional force sensors are arranged on the first shaft body and the second shaft body respectively. The turnover tool comprises a turnover tool body, a plurality of containing frames are arranged on the turnover tool body, a stringer body is arranged between the containing frames, adjusting grooves are formed in the two sides of the lower portion of the turnover tool body correspondingly, lead screws are arranged in the adjusting grooves correspondingly, the lead screws are sleeved with driving blocks correspondingly, and balancing weights are arranged at the top ends of the driving blocks correspondingly. The turnover tool body, the stringer body, the placing frame, the first shaft body, the driving motor, the second shaft body, the six-dimensional force sensor, the adjusting groove, the lead screw, the servo motor, the driving block and the balancing weight are installed, the moment of force of the balancing weight to the turnover tool body can be changed by adjusting the horizontal position of the balancing weight, and the turnover tool body is kept balanced.