44results about How to "The connection structure is simple and reliable" patented technology

The invention discloses a steering wheel connection shaft staggering device which comprises a shell, a rotating shaft and a gear fixed at the bottom of the rotating shaft, wherein the inside of the bottom of the shell is connected with the side surface of the rotating shaft through a tooth structure; an anti-collision gasket is fixedly arranged on the bottom surface of the bottom of the shell; the size of the anti-collision gasket is equal to that of the bottom surface of the bottom of the shell; a group of limiting shafts are fixed in the center of the top of the rotating shaft; a hollow structure for plugging the limiting shafts is formed inside the shell; a hollow region is formed in a position, located above the hollow structure, in the shell; a through hole structure for communicating the hollow region with the bottom of the hollow structure is arranged between the hollow region and the bottom of the hollow structure; a group of limiting heads are placed at a position, located at the bottom of the hollow structure, on the through hole structure; a group of pistons are arranged inside the hollow region; a group of connection rods are fixed in the centers of the tops of the pistons; the tops of the connection rods are connected with a group of threaded plates; the side surfaces of the threaded plates are connected into the shell through threaded structures. In case of collision, a staggering phenomenon is caused; furthermore, gas can be supplemented, and the service life is long.

The invention discloses pile pressing equipment. The equipment comprises a base, first clamping mechanisms fixed to the two sides of the bottom of the base correspondingly, a first lifting oil cylinder fixed to the rear end of the base, a guide rail closed into a middle hole of the base in a sliding sleeving mode, and a horizontal moving oil cylinder which is arranged on the guide rail and the base and used for moving the base or the guide rail front and back. The equipment further comprises a pile pressing device arranged at the front end of the guide rail, and second clamping mechanisms arearranged on the two sides of the bottom of the pile pressing device. The equipment further comprises a crawler device and a lifting device which enable the base and the pile pressing device to be placed at the top of a planted pile. The front end of the guide rail is in the shape of an arc, the rear end of the pile pressing device is hinged to the front end of the guide rail, and turning oil cylinders used for enabling the pile pressing device to turn horizontally are arranged on the two sides of the front end of the guide rail; fixing blocks used for fixing lifting oil cylinders are hinged tothe rear end of the guide rail; and a rotary drilling machine is mounted on the pile pressing device. The pile pressing equipment can travel to the top end of the planted pile and is positioned or moved, and in addition, the pile pressing device can horizontally turn.

The invention relates to the field of an electroacoustic transducer, in particular to a conducting terminal of the electroacoustic transducer. A frame is provided with the conducting terminal, wherein the conducting terminal comprises a planar and flaky base part, and the base part is provided with a pad end for transmitting an electric signal; and two sides of the frame are provided with a guide slot and a welded hole, the base part is embedded into the guide slot for matching with each other, and the pad end is inserted into the welded hole and connected with a sounder body. Thus, the base part is positioned through the guide slot and the welded hole so as to fix the conducting terminal; a connection structure is simple and reliable; the planar and flaky base part is easy to process and form, and convenient to mount; and the conducting terminal of the electroacoustic transducer and an assembling method are favorable for improving the performance of the integral sounder.

The invention discloses a train car connector which comprises a connector body, an electric connection combination, an electric contact bar, a brake hose and a detachable electric connecting component. The connecting end of the brake hose and the electric connection combination are respectively connected with the connector body to form an integral structure. The electric contact bar is disposed in the electric connection combination. The two brake hoses of two adjacent train cars are correspondingly connected while the electric connection combinations are correspondingly connected, and the two electric contact bars are connected in a coupled manner. By the arrangement, the train car connector is simple and reliable in connecting structure, and stability of a train bus transmission power supply, network communication signals and the brake force provided by compressed air is guaranteed.

The invention discloses a vibrative charging tank with a liner plate. The vibrative charging tank comprises a tank body and the tank bottom liner plate, wherein the head portion of the tank bottom liner plate is fixedly connected with the tank body bottom through a transversely-arranged bolt assembly, the tail portion of the tank bottom liner plate is fixedly connected with the tank body bottom through a vertically-arranged bolt assembly. When the charging tank works, the tank body performs horizontal reciprocating vibration, the transversely-arranged bolt assembly provides a horizontal fastening force for the tank bottom liner plate and accordingly can effectively resist horizontal vibration inertia force and horizontal friction force enabling the liner plate to be loosened, and the vertically-arranged bolt assembly provides vertical fastening force for the tank bottom liner plate and accordingly can effectively resist vertical inertia force enabling the liner plate to be loosened. In addition, pre-compression amount of a spring gasket can automatically compensate a gap produced between a nut and an elastic gasket when the liner plate vibrates, and nut loosening can be avoided. Therefore, the vibrative charging tank has the advantages that the liner plate and the tank bottom are tightly connected, the liner plate is not loosened when working for a long period of time, and the charging tank is stable in running, small in maintenance work amount, long in service life and the like.

The invention relates to a high-pressure double suction pump. The pump comprises a suction chamber, a pump case, an impeller, a shaft, a packaged mechanical seal device arranged between the pump case and the shaft, an impeller ring seal device and a mechanical seal flushing device, wherein the suction chamber comprises a suction port, a flow distributing section and a spiral section; the flow splitting section comprises a left passage, a right passage and a volute wall between the left passage and the right passage; the volute wall is provided with a water distributing tongue extending towards the suction port; and the outer surface of the flow distributing section of the suction chamber is provided with at least one radial reinforcing rib which encircles the flow distributing section by a circle. The double suction pump solves the technical problems of low efficiency of the suction chamber, long time of hydraulic strength tests, easily failed mechanically sealed brake device and poorsealing effect of the ring, improves the efficiency of the suction chamber, shortens the testing time, reduces tooling, and stops the problems that the brake device flicks and fails in a high pressure working environment.

The invention discloses a flange connection structure. The flange connection structure is used for connecting a hanging basket in a reactor with a base in the reactor and comprises an upper flange fixed to the hanging basket and a lower flange fixed to the base, the flange connection structure further comprises a longitudinal limiting part arranged between the upper flange and the lower flange, and a transverse limiting part arranged between the upper flange and the lower flange, the longitudinal limiting part longitudinally limits the upper flange and the lower flange, and the transverse limiting part transversely limits the upper flange and the lower flange. By using the flange connection structure, the base can effectively support the hanging basket and can bear thermal stress generatedby temperature change, it is ensured that the base does not displace longitudinally and transversely, and reliability of supporting the hanging basket by the base is improved.

The invention discloses domestic water treatment equipment and an installation method thereof. The domestic water treatment equipment comprises a base, a lower frame, a middle supporting plate and decorative side plates, wherein the lower frame is connected with the base in a matching way by means of a clamping structure; the middle supporting plate is used for assembling accessories of the domestic water treatment equipment; the middle supporting plate is arranged above the lower frame and is connected with the lower frame in a matching way; a supporting main body for supporting the middle supporting plate and the accessories arranged on the middle supporting plate is formed by the lower frame and the base; the decorative side plates are installed at the lateral parts of the supporting main body; and therefore, the problems that in the prior art, the domestic water treatment equipment is low in structural strength, poor in stability and high in installation difficulty are solved.

The invention relates to a day-and-night use type bead pattern-splicing type advertising board which is characterized by comprising a main frame in a rectangular shape and a plurality of positioning pillars distributed on the main frame at equal intervals, wherein a plurality of beads in different colors are suspended on the positioning pillars according to a frame content; the beads in different colors are utilized to splice an advertising frame content; an LED (Light Emitting Diode) is arranged between each two adjacent positioning pillars; the LED lamps are powered on and work at night or under a dark light condition, and the LED lamps in different colors are utilized to combine a content consistent to the bead splicing effect. The day-and-night use type bead pattern-splicing type advertising board has the beneficial effects: 1) the main frame for mounting the beads can be freely detached and assembled, so that an advertising frame can be divided into a plurality of units, each unit is arranged as a frame, and after the beads on each frame are independently spliced, splicing is performed in the later period, and 2) at night or under the dark light condition, the LED lamps in the same color can be utilized to bring the beads in the same color, so that the advertising frame can be displayed in the daytime and at night.

The invention relates to a connecting structure and a mounting method of a double-layer curtain wall. The connecting structure comprises an inner wallboard arranged on the outer surface of a wall body, a panel, a first mounting assembly and a second mounting assembly, and the panel is mounted on the outer side of the inner wallboard through the first mounting assembly and the second mounting assembly. The double-layer curtain wall structure has the effects of environmental protection, energy conservation and building structure protection; the panel is installed in a hanging mode, the position of the panel can be adjusted in a three-dimensional mode, it is easy to position during installation, it is convenient to operate in a non-visual range, so that repeated installation and detachment can be achieved, and loosening is not prone to occurring; the overall installation method is simple, and the installation efficiency is high.

The invention relates to an efficient drill cement tool which comprises a sharp drill bit, a pear-shaped milling awl and a connector. The sharp drill bit is arranged on the lower portion of the pear-shaped milling awl which is arrange on the lower portion of the connector; multiple water outlet grooves are evenly distributed on the periphery of the pear-shaped milling awl, circular protrusions are arranged on the portions, located at the rear portions of the water outlet grooves, of the pear-shaped milling awl in the circumferential direction, and cemented carbide is arranged on the circular protrusions. The efficient drill cement tool is connected to the lower portion of a down-hole drilling tool and goes down to the cement surface to conduct drill cement operation by starting pumping; the sharp drill bit in the front makes contact with the cement first, under the action of bit pressure, the sharp drill bit enters the cement layer, by means of the torque of a rotating plate, a cement plug is cut, and faster drilling footage is achieved; the pear-shaped milling awl in the middle can scrape residual cement on the casing well, the drill cement well section is cleaned, and the diameter of a wellbore is maintained to make the next construction operation convenient; the pear-shaped milling awl can still play a role of righting to protect a casing, thus, the whole construction process can be completed through single string running.

The invention discloses a steering wheel connecting shaft dislocation device. The steering wheel connecting shaft dislocation device comprises a shell, a rotating shaft and a gear fixed to the bottom of the rotating shaft; the interior of the bottom of the shell is connected with the side face of the rotating shaft through a tooth structure, the bottom face of the bottom of the shell is fixedly provided with an anti-collision gasket which has the same size as that of the bottom face of the bottom of the shell; a limiting shaft is fixed to the center of the top of the rotating shaft, a hollow structure for allowing the limiting shafts to be inserted is arranged in the shell, and the portion, over the hollow structure, in the shell is provided with a hollow section, a through hole structure for communicating the hollow section with the hollow structure is arranged between the hollow section and the bottom of the hollow structure, the portion, located at the bottom of the hollow structure, of the through hole structure is provided with a limiting head, a piston is arranged in the hollow section, a connecting rod is fixed to the center of the top of the piston, the top of the connecting rod is connected with a threaded plate, and the side face of the threaded plate is connected with the interior of the shell through a threaded structure. Accordingly, when collision occurs, a dislocation phenomenon can be generated; in addition, gas can be supplemented, and the service life is long.

The invention provides a hydraulic pump for well drilling downhole tools. The hydraulic pump comprises a drive shaft, a rotor, blades, a stator, two thrust plates and two transition plates, wherein the rotor and the blades are connected to the drive shaft; the stator is arranged on the outer sides of the rotor and the blades; the two thrust plates are symmetrically installed on the two sides of the rotor and further fixedly connected with the stator; and the two transition plates are connected to the outer sides of the two thrust plates correspondingly, and the transition plates and the thrustplates on the same side are connected with the drive shaft through bearings. The hydraulic pump is suitable for petroleum and natural gas well drilling downhole operating tools, operating is stable and reliable and the displacement is large.

The invention discloses a shower room three-door linkage structure and an installation method thereof. The shower room three-door linkage structure comprises an upper guide rail, a lower guide rail and a glass door set sandwiched between the upper guide rail and the lower guide rail. The glass door set comprises a first glass door, a second glass door and a third glass door which are in parallel,the second glass door is connected with the first glass door and the third glass door to form linkage, two sets of belt components arranged oppositely are arranged on the second glass door, installation clamping seats are arranged on the first glass door and the third glass door respectively, and the two ends of each belt component are detachably connected with the corresponding installation clamping seats respectively. The installation method mainly comprises the steps of pre-installation of the glass doors, hanging of the glass doors and connection of the glass doors. The shower room three-door linkage structure and the installation method thereof are provided in the related area, the problem that an existing three-door linkage structure is difficult to install is solved, the shower roomthree-door linkage structure is simple and reliable in connection structure and fast and convenient to install, the error installation rate is greatly reduced, and maintenance time and cost are reduced.

An aero-engine direct-drive internal rotor starter-generator system, which is applied in the field of unmanned aerial vehicle hybrid electric power, installs and fixes the starter-generator outer stator assembly on the aero-engine through a stator bracket, so that the starter-generator system has a compact structure and Short length, high integration, and high power-to-weight ratio; the coaxiality between the starter generator stator and the engine is ensured through the support of the stator bracket, and the starter generator inner rotor assembly is directly installed on the aeroengine shaft, so that the starter generator system There is no need for bearing support near the engine side, and a single bearing support is used on the far engine side, which reduces the heat generation of the bearing and improves the reliability of the bearing; there is also a resolver at the end of the rotor assembly in the starter generator far away from the aeroengine, which can accurately Detect the position of the rotor, so that the starter generator system can output high-power direct current by means of controllable rectification, and the power generation efficiency is high.

The invention discloses a steering wheel connecting shaft dislocation device. The steering wheel connecting shaft dislocation device comprises a shell, a rotating shaft and a gear fixed to the bottom of the rotating shaft; the interior of the bottom of the shell is connected with the side face of the rotating shaft through a tooth structure, the bottom face of the bottom of the shell is fixedly provided with an anti-collision gasket which has the same size as that of the bottom face of the bottom of the shell; a limiting shaft is fixed to the center of the top of the rotating shaft, a hollow structure for allowing the limiting shafts to be inserted is arranged in the shell, and the portion, over the hollow structure, in the shell is provided with a hollow section, a through hole structure for communicating the hollow section with the hollow structure is arranged between the hollow section and the bottom of the hollow structure, the portion, located at the bottom of the hollow structure, of the through hole structure is provided with a limiting head, a piston is arranged in the hollow section, a connecting rod is fixed to the center of the top of the piston, the top of the connecting rod is connected with a threaded plate, and the side face of the threaded plate is connected with the interior of the shell through a threaded structure. Accordingly, when collision occurs, a dislocation phenomenon can be generated; in addition, gas can be supplemented, and the service life is long.

The invention relates to a connecting structure of a valve seat and a valve body of a check valve. The connecting structure comprises a valve body, a valve seat and a fixing structure. The valve seat is arranged on the inner wall of the valve body and is tightly connected with the valve body, the fixing structure is used for fixing the valve seat on the valve body and comprises a locating part and a fastener, the locating part is axially arranged opposite to the valve body in a locating manner, and the fastener is used for fixedly connecting the locating part and the valve seat. The valve body is fixed on the valve seat via the locating part and the fastener; with the fixing structure, dismounting between the valve body and the valve seat is easy to realize and the fixing structure is stable in connection; the parts above is easy to be manufactured by manufacturers.

The invention discloses a vibrative charging tank with a liner plate. The vibrative charging tank comprises a tank body and the tank bottom liner plate, wherein the head portion of the tank bottom liner plate is fixedly connected with the tank body bottom through a transversely-arranged bolt assembly, the tail portion of the tank bottom liner plate is fixedly connected with the tank body bottom through a vertically-arranged bolt assembly. When the charging tank works, the tank body performs horizontal reciprocating vibration, the transversely-arranged bolt assembly provides a horizontal fastening force for the tank bottom liner plate and accordingly can effectively resist horizontal vibration inertia force and horizontal friction force enabling the liner plate to be loosened, and the vertically-arranged bolt assembly provides vertical fastening force for the tank bottom liner plate and accordingly can effectively resist vertical inertia force enabling the liner plate to be loosened. In addition, pre-compression amount of a spring gasket can automatically compensate a gap produced between a nut and an elastic gasket when the liner plate vibrates, and nut loosening can be avoided. Therefore, the vibrative charging tank has the advantages that the liner plate and the tank bottom are tightly connected, the liner plate is not loosened when working for a long period of time, and the charging tank is stable in running, small in maintenance work amount, long in service life and the like.

A durable door suction rod comprises a clamping shell (1) and a sucker body (8). The right end of the sucker body (8) is connected with a rod shaft (2). A rubber anti-collision sleeve (18) is arranged on the outer surface of the sucker body (8). The rubber anti-collision sleeve (18) wraps the left half part of the sucker body (8). The rubber anti-collision sleeve (18) and the sucker body (8) are glued and fixed. The rod shaft (2) is connected with the clamping shell (1) through a stretching structure (3). A buffer shaft (4) is arranged in the center of the right end of the rod shaft (2). A buffer space (5) used for arranging the buffer shaft (4) is formed in the clamping shell (1). A pressure air space (9) is formed in the part, located on the right side of the buffer space (5), in the clamping shell (1). A passing cavity (6) which communicates with the pressure air space (9) and the buffer space (5) is formed between the pressure air space (9) and the left side part of the buffer space (5). The part, located on the left side part of the buffer space (5), of the passing cavity (6) is provided with a set of ejection heads (7).

The invention discloses the structure of a modular deformable unmanned aerial vehicle. The UAV structure of the present invention is composed of a plurality of single-rotor modules spliced ​​together, and the single-rotor module includes: a cuboid body, a connecting plate, a limit rod, a motor seat slide rail and a motor seat; wherein, the cuboid body, the connecting plate, the limiter The rod, the motor seat slide rail and the motor seat are arranged in a "bow" shape, and the deformation of the structure is realized by moving the position of the motor seat. The deformable structure makes it possible to assemble a traditional UAV, or attach to a load to form a special UAV, thus meeting diverse mission requirements and improving the flexibility and redundancy of the UAV . Once a single rotor module is damaged, it can be disassembled and installed, quickly replaced and go-around.

The invention discloses a structure for improving the rigidity of a rotor, and relates to the field of axial flow pump rotors. The structure comprises an impeller hub, an impeller shaft sleeve, a shaft and a mechanical seal shaft sleeve, wherein the impeller shaft sleeve is arranged on the shaft in a sleeving mode, a conical surface is arranged on the outer circle surface of an end of the left side of the impeller shaft sleeve and is matched with a conical surface arranged on the inner circle surface of an end of the right side of the impeller hub to form conical surface connection, and a conical surface is arranged on the outer circle surface of the end of the right side of the impeller shaft sleeve and is matched with a conical surface arranged on the inner circle surface of an end of the left side of the mechanical seal shaft sleeve to form conical surface connection; and an end of the left side of the shaft is fixedly connected with the impeller hub through an impeller nut and is locked by a conical sleeve, and a water guide cone is fixedly arranged at an end of the left side of the impeller hub. The structure has the beneficial effects that the connecting structure is simple and reliable, the rigidity of the rotor is greatly improved, the operation service life of an axial flow pump is effectively prolonged, and therefore, the frequency of shutdown maintenance of a pump body is reduced.

The invention relates to a decorative structure for trousers with drawstrings. The decorative structure comprises a connecting body, wherein at least two through holes are formed in the connecting body; and two drawstrings of the trousers penetrate out from one side of the connecting body to the other side of the connecting body through the corresponding through holes, and are fastened to each other on the other side of the connecting body. When the decorative structure for the trousers with the drawstrings is in use, the drawstrings penetrate out from the through holes in the connecting bodyand are tied together, and the connecting body is arranged between the trousers and the drawstring tie in a spaced mode, so that the drawstring knot cannot be retracted from the drawstring hole in thetrouser waist, and wearing and washing of the trousers are facilitated.

An auxiliary pressure welding tooling for a shielding net conduction joint of a shielding line comprises a fixture used for positioning a to-be-pressure-welded assembly, and a movable pressure welding mechanism matching the fixture to compress the to-be-pressure-welded assembly. The movable pressure welding mechanism comprises a pressure welding module, a guide assembly, and a torque handle used for driving the pressure welding module to slide along the guide assembly to complete pressure welding. The pressure welding module and the torque handle are connected by a sliding center shaft. One end of the torque handle is hinged to a base through an end rotating pin. The torque handle is provided with an adjusting hole in the middle. The lower end of the sliding center shaft is arranged at the adjusting hole, and the upper end of the sliding center shaft is connected with the pressure welding module. The auxiliary pressure welding tooling of the invention has the advantages of being simple in structure, practical and convenient, easy to move, labor-saving, and capable of preventing damage to devices.

The invention relates to an installation auxiliary device for a deep-sea fixed functional cabin, which includes an upper auxiliary module and a lower auxiliary module arranged oppositely, the upper auxiliary module is installed above the lower auxiliary module through a plurality of counterweight struts, and includes a horizontal arrangement The ring bracket is installed under the upper auxiliary module through the dry root bracket brace. In the present invention, by setting the upper auxiliary module and the lower auxiliary module, the fixed deep-water working cabin is subjected to negative buoyancy and sinks, and can withstand the deep-water high-pressure environment without deformation and crushing. It has a certain installation flexibility, and different supporting plate structures are set on the ring bracket for different pressure shells to meet the tight limit requirements of various pressure shells; all hydraulic pushing mechanisms are connected to the same accumulator, which can Fast synchronous control is realized, and a return spring is installed to prevent the ring bracket from interfering with the process of detaching from the fixed deep-sea functional cabin of the present invention.