11results about How to "Down stable" patented technology

The invention belongs to the technical field of building construction, and particularly relates to a building pile foundation efficient construction device and an operation method thereof. The annular chassis sleeves the outer side of the protective cylinder; the top end of the annular chassis is rotationally connected with an annular rotating disc; the annular rotating disc is positioned on the annular chassis through a clamping piece; a set of supporting blocks are fixedly connected to the position, close to the top end of the inner ring wall, of the annular rotating disc. A first through groove is formed in the upper side wall of the supporting block; a U-shaped plate is fixedly connected to the side wall of the supporting block, and an opening of the U-shaped plate corresponds to the first through groove and communicates with the first through groove. The top end of the annular rotating disc is provided with a set of first sliding grooves, and the first sliding grooves are located below the U-shaped plate. An inverted-L-shaped block is slidably connected into the first sliding groove, and the side wall of a vertical block of the inverted-L-shaped block is slidably connected into the U-shaped plate. The problems that a reinforcement cage is not placed accurately and multiple sections of reinforcement cages are instable in butt joint are solved.

The utility model relates to the technical field of construction platforms, in particular to an expressway bridge construction platform which comprises a driving vehicle, a rectangular platform arranged on one side of the driving vehicle, a first telescopic rod, a second telescopic rod, a third telescopic rod, a fourth telescopic rod and a supporting frame used for being connected with the top ends of the four telescopic rods, the driving vehicle is connected with the supporting frame through a connecting frame, a hydraulic cylinder is arranged on the supporting frame, a rod head of a piston rod of the hydraulic cylinder vertically extends downwards to be in driving connection with the rectangular platform, a first synchronous structure is arranged between the first telescopic rod and the second telescopic rod, and a second synchronous structure is arranged between the second telescopic rod and the third telescopic rod. A third synchronous structure is arranged between the third telescopic rod and the fourth telescopic rod. According to the lifting device, large-amplitude shaking generated in the lifting process of the construction platform can be effectively relieved, workers on the construction platform are prevented from feeling fear, and the working quality and the working efficiency of the workers are improved.

The present invention discloses a sponge splicing device, and relates to the technical field of sponge processing. It comprises a workbench, on which a first splicing mechanism for heating and applying adhesive to sponges and a second splicing mechanism for slotting sponges and splicing them by plugging are installed. The present invention provides two ways of splicing sponges together, namely, thermal splicing and chemical adhesive splicing, by means of the first splicing mechanism, and provides a cutting and plugging method for splicing sponges together by means of the second splicing mechanism. By means of the cooperation between the first splicing mechanism and the second splicing mechanism, the device can be provided with a variety of sponge splicing methods, thus improving applicability and increasing the scope of splicing different types of sponges. In addition, a variety of splicing methods are integrated together, which is convenient for staff to use according to use requirements. In the first splicing mechanism, the adding box is detachable, and its number can be increased or reduced according to the cross-sectional height of the sponge, which is convenient for use.

The utility model relates to the technical field of buildings, in particular to a building design checking tool which comprises a pay-off assembly and an adjusting sleeve, the adjusting sleeve is arranged on one side of the pay-off assembly, threaded rods are fixedly connected to the two sides of the adjusting sleeve, the other end of the threaded rod on one side is in spiral connection with the pay-off assembly, and the other end of the threaded rod on the other side is in spiral connection with the pay-off assembly. The other end of the threaded rod on the other side is spirally connected with a handheld sleeve, and the other end of the handheld sleeve is fixedly connected with a first friction pad. The hand-held sleeve is held by hand, the first friction pad at one end of the hand-held sleeve is in contact with the wall surface, the second friction pad below the hand-held sleeve is in contact with the wall surface under the action of the supporting column, the device can be stably fixed at the moment, then the rotating shaft can be driven to rotate by rotating the handle, and the rotating shaft drives the pay-off reel to rotate, so that the pay-off purpose is achieved. And the top of the magnetic force line can ensure the stability of the magnetic force line under the condition that an operator holds the handheld sleeve by hand, so that the accuracy of subsequent measurement data is ensured.

The invention discloses an underground water level observation device for hydrogeological exploration based on remote sensing technology, comprising a detection rod and a measuring rope with a scale arranged on the detection rod, the detection rod is provided with a water level sensor for detecting the water level, one end of the measuring rope is connected with a measuring frame, the measuring frame is provided with a buzzer, the detection rod comprises a connecting rod, one end of the connecting rod is provided with a supporting shell, and the supporting shell is provided with an adjusting member for adjusting the position of the connecting rod relative to the supporting shell. This underground water level observation device for hydrogeological exploration based on remote sensing technology, when encountering that the borehole aperture is blocked by soil or other stones, enables the detection rod to rotate the hole while moving downward, so that the detection rod moves to the bottom of the borehole and realizes accurate detection of the water level inside the borehole, and at the same time, when the detection rod moves upward, it can ensure the stable upward movement of the detection rod.

This invention relates to the field of lifeboat lifting, and discloses a lifeboat lifting device for passenger ships, including a swing arm structure, a swing arm drive device, and a lifting drive device installed on the passenger ship. The lifting drive device is connected to the lifeboat. The swing arm structure is provided with an anti-sway structure. The swing arm structure includes a vertically arranged sleeve assembly. A lifting cable on the swing arm drive device is connected to the top of the swing arm structure. The arc-shaped rod is provided with a toothed groove. The swing arm structure is provided with a swing arm locking device that stops the rotation of the swing arm structure by engaging with the toothed groove. The beneficial effects of this invention compared with the prior art are: when the swing arm structure rotates, the angle transmission structure drives the connecting gear to make the sleeve assembly rotate in the opposite direction around the sleeve axis at the same angle as the swing arm structure, so that the sleeve assembly is always in a vertical state, suppressing the swaying of the lifting cable, greatly improving the stability of the lifeboat during movement, reducing the swaying amplitude caused by inertia, reducing cable wear, and ensuring the safety of passengers.

The invention discloses a self-leveling rotary cultivator, and belongs to the technical field of rotary cultivators, the self-leveling rotary cultivator comprises a rack, a suspension bracket and a horizontal sensor, the rack is provided with a gravity center adjusting mechanism, the gravity center adjusting mechanism comprises a sliding rod and a balancing weight, the balancing weight is connected with an oil pressure leveling mechanism through a support, and a pressurization ploughing mechanism is arranged in the rack. The pressurizing ploughing mechanism comprises two sleeves and threaded rods, a connecting sleeve is arranged at the lower end of each threaded rod, and the two connecting sleeves are jointly and rotationally connected with a rotary tillage cutter shaft. The angle and the depth of the rotary tillage cutter shaft are adjusted, so that the consistency of the tilling depth and the uniformity of the soil crushing degree are ensured, the later crop growth is facilitated, the phenomenon of unsmooth drainage of a field is avoided, the larger resistance borne by the unbalanced rotary tillage cutter shaft is reduced, the abrasion of the blade is reduced, and the service life is prolonged.

The utility model discloses a Doppler bilge well liquid level flow detection device, which belongs to the technical field of flow measurement and comprises a fixing component. A limiting assembly is mounted on the fixing assembly; a winding assembly is mounted on the fixing assembly; and the placing and coiling assembly comprises a placing assembly and a coiling assembly. By means of the mode, the probe of the Doppler flowmeter can be collected, released or replaced conveniently, and meanwhile the situation that the wire is damaged due to friction between the wire and the inner wall of the sewage well body can be prevented.

The utility model discloses a soil sample collection device for soil ecological restoration belongs to environmental management equipment technical field, a soil sample collection device for soil ecological restoration, including mobile seat, the top fixedly connected with mounting bracket of mobile seat, two guide rods are fixedly connected between the top and bottom inner wall of mounting bracket, the outer periphery slidingly connected with mobile frame of guide rod, install sampling mechanism on mobile frame, sampling mechanism is including the bottom outer tube and sampling motor of installation on mobile frame, it can install broken drill bit at bottom outer tube bottom end, make the soil layer penetration stability get the promotion, and then improved the sampling efficiency, utilize bottom outer tube insulating hole wall collapse pollution simultaneously, and bottom inner tube rotates and presses down, utilize spiral sampling drill bit and rotate the sample to the empty cavity in storage, effectively avoided the cross -contamination of interlayer soil, improved the authenticity of detection data.

The present invention discloses a wellhead casing head, and relates to the technical field of casing heads. The wellhead casing head comprises a flange housing, a slip hanger and a locking mechanism; the slip hanger comprises a support seat located at the bottom of the slip hanger, the support seat comprises a circular ring structure formed by two semi-annular structures, a lower end of each support seat is provided with a lower extension, and at least two outwardly radiating wedge plates are installed in each lower extension through a first spring, and the wellhead casing head is provided with a wedge plate connected by a first spring below the support seat of the hanger, so that the support of a C-shaped plate is not required, and the locking mechanism can also be unlocked. After it is unlocked, when a blowout preventer group is used to apply downward pressure to the slip hanger, the main limit guide groove will generate a large pressure on the wedge plate, so that the wedge plate can be stably moved downward along the main limit guide groove, so as to achieve the purpose of stable downward movement of the slip hanger, and avoid eccentricity of the slip hanger and the oil layer casing relative to the flange housing.

This invention relates to the field of machining technology, specifically to a multi-stage buffering fixture for clamping the shaft of a heavy workpiece. The fixture includes a support plate and two clamping jaws. The two jaws jointly clamp the main shaft of the workpiece. A first support point is located near the center of each jaw, and a second support point is located between the first support point and the rotating shaft. A limiting groove is formed on the support plate, and the shaft is movably disposed within the limiting groove. Hydraulic rods providing hydraulic support are connected to both ends of the shaft. A buffering mechanism is provided on the outer wall of the support plate, with its elastic movable end abutting against the second support point of the clamping jaws. Through the coordinated operation of the hydraulic rods and the buffering mechanism on the support plate, when the heavy workpiece falls, its deceleration and stopping time is greatly extended, thereby transforming the instantaneous rigid impact into a controllable buffering process, fundamentally avoiding permanent deformation or damage to the fixture structure caused by the enormous impact force.