17 results about "Bell mouth" patented technology

An outdoor unit according to the present invention comprises: a box-shaped housing in which an intake port and a blowout port are formed; and an axial flow fan that is disposed inside the housing and rotates to form airflow. The housing has a cylindrical bell mouth that constitutes the blowout port and surrounds the outer circumference of the axial flow fan. The axial flow fan is provided with: a hub that is rotationally driven and forms a rotating shaft; a plurality of blades that are formed around the hub and extend radially outward from the hub; and a cylindrical ring part that is formed in an annular shape when viewed in the axial direction of the rotating shaft and is integrally formed with each blade end at the radially outer side of the plurality of blades. In the axial flow fan, a portion on the downstream side in the direction of the air flow formed by the rotation of the axial flow fan is positioned inside the bell mouth, and a portion on the upstream side thereof is positioned outside the bell mouth, and the ring part is disposed further to the upstream side than the bell mouth inside the housing.

This utility model discloses a bell-shaped connection device for workover rigs. The device includes a first connecting assembly and a second connecting assembly. The first connecting assembly includes a first telescopic adjustment pipe, a main return pipe, and a flexible rubber joint connected sequentially. The first telescopic adjustment pipe is connected to the side of the expansion section of the bell-shaped opening, and the flexible rubber joint is used to connect to a mud collection device. The second connecting assembly includes a second telescopic adjustment pipe, the first end of which is connected to the second connecting section of the bell-shaped opening, and the second end of which is used to connect to a blowout preventer assembly. This bell-shaped connection device for workover rigs is easy to install on-site, reliable in operation, and adaptable to various adjustment scenarios.

This invention relates to the field of jacking pipe installation, and more particularly to a sealed, self-locking, solid-wall jacking pipe for buried drainage. The sealed, self-locking, solid-wall jacking pipe for buried drainage includes a pipe body with a spigot and a socket at both ends; a reversible guide sleeve is disposed within an annular groove on the outer wall of the spigot, having a first state of being completely contained within the groove and a second state of the movable end flipping outward to form a guide bell-shaped opening; wherein, the inner and outer circumferential surfaces of the reversible guide sleeve are provided with toothed structures, and the bottom of the groove and the inner wall of the socket are provided with grooved structures matching the toothed structures to form an axial lock for the two pipe sections. In the sealed, self-locking, solid-wall jacking pipe for buried drainage provided by this invention, a guide channel is provided for the insertion of the socket by setting a reversible guide sleeve that can be manually flipped into an expanding bell-shaped opening. Construction personnel can easily achieve a high degree of concentricity in the initial connection of the pipes.

The utility model relates to carton technical field especially is a kind of multilayer protective carton with visual window, including carton bottom frame, the top of carton bottom frame is equipped with upper panel, rectangular window and bell mouth are respectively set up from top to bottom in the surface middle position of upper panel, the inside top surface of bell mouth is adhered with PVC transparent sheet, in the utility model, by the cover plate, central block, lightweight continuous column, color sealing gasket, adhesive layer, lower insertion frame and hollow buckle plate being set, the multilayer protective carton with visual window can be conveniently made when visualizing, the reserved setting of rectangular window and bell mouth is lowered, respectively in the inside of both, install upper fastening assembly and hollow buckle plate, to reach the strength of the multilayer protective carton reserved window position, prevent the problem that multilayer protective carton is weakened in subsequent actual use, partial strength and overall compressive strength significantly reduce, reduce the risk that window edge position is prone to tear damage.

This utility model provides a device for eliminating the need for chiseling the funnel-shaped opening in the casting of structural columns, belonging to the field of structural column devices. It includes a template, a funnel-shaped opening, and insert plates. The template has an opening in its upper middle part, with L-shaped folded plates on both sides of the opening. The insert plates are inserted into the L-shaped folded plates on both sides. A connecting ear plate is connected to one side of each L-shaped folded plate, and L-shaped grooves are provided on the upper parts of both sides of the connecting ear plate. The funnel-shaped opening is hung on the L-shaped grooves on both sides. This utility model uses a standardized template for sealing, adds U-shaped reinforcing ribs for pressing and strengthening with square timber, and ensures that the template and insert plates are flush through the opening, avoiding misalignment. The slanted opening of the hopper is detachable and can rotate for stress distribution, facilitating manual loading and unloading and easy reuse. The concrete can be effectively recycled and reused.

The utility model relates to corrugated pipe processing technical field, the utility model discloses a kind of pipe orifice flaring device for corrugated pipe processing, including base, the top of the base is fixedly connected with protective shell, the inside of the protective shell is fixedly connected with telescopic pneumatic cylinder, the top of the telescopic pneumatic cylinder is fixedly connected with conical top block, further including: connecting assembly, the top of the connecting assembly is movably installed with expansion assembly, the device is driven conical top block to move upwards by telescopic pneumatic cylinder, along with conical top block ascending, its side wall and expansion block side wall contact and exert thrust, expansion block at this time along the inside of limit block drives connecting block to slide outward, can realize the flaring operation to the pipe orifice of corrugated pipe, wherein rotating roller is contacted with the inner wall of corrugated pipe in expansion process, the original sliding friction between expansion block and corrugated pipe is changed into rolling friction, reduce the risk that the inner wall of corrugated pipe appears scratch, wear and tear etc. due to excessive friction.

The utility model provides a kind of cladding assembly and cladding film of adaptive empty smoke pipe structure, including main part, through-hole, negative pressure passage and cladding film;The through-hole is shaped in the axial direction of main part and penetrates main part;The lower part of the through-hole is filter tip section, and the contour shape is set as cylindrical;The upper part of the through-hole is set empty cylinder section, and the contour shape is set as horn mouth shape of wide on top and narrow on bottom;The cladding film is the cylinder of the circular ring rib with both ends, the overall shape of the cladding film is adapted to the shape of the through-hole, both ends of the cladding film are fixed on the main part of the both ends of through-hole, and closed cavity is formed between the cladding film and the inner wall of through-hole;The negative pressure passage is opened on the side wall of main part corresponding filter tip section, and the negative pressure passage is communicated with the closed cavity.This cladding assembly and cladding film of adaptive empty smoke pipe structure have the advantages of good universality, can adapt to empty smoke pipe deformation, and have high clamping stability.

The utility model discloses a detachable inverse phase pipe of sound box double loudspeaker mouth, this inverse phase pipe includes front inverse phase pipe and with the detachable connection of rear inverse phase pipe of front inverse phase pipe, this front inverse phase pipe includes first loudspeaker mouth, with the first pipe body of first loudspeaker mouth intercommunication, this rear inverse phase pipe includes second loudspeaker mouth, with the second pipe body of second loudspeaker mouth intercommunication, the end of second pipe body is equipped with the insertion pipe of being inserted into first pipe body, the end of first pipe body is equipped with the accommodation pipe of being inserted into the insertion pipe connection, the bottom of accommodation pipe is equipped with the stop ring of stopping insertion pipe, the outside wall of insertion pipe is equipped with at least two clamping blocks of protruding from the outside wall of insertion pipe, and the inside wall of accommodation pipe is equipped with at least two clamping grooves of being inserted into and rotatory clamping of the clamping block.

The application relates to the technical field of pipe processing, in particular to a first clamping mechanism and a pipe penetrating device and a pipe penetrating method with the same. The first clamping mechanism comprises a first clamping block and a second clamping block, has a close state of relatively close and a far state of relatively far away, and a first horn mouth for pipe head entering is formed between the first clamping block and the second clamping block in the close state; a first biasing member elastically biases the first clamping block and the second clamping block towards the close state; when the first clamping block and the second clamping block are in the close state, the first clamping block and the second clamping block are pushed in response to the pipe head entering the first horn mouth along a penetrating direction, the first clamping block and the second clamping block move away from each other against the elastic biasing force of the first biasing member, and the pipe head is elastically clamped by the first clamping block and the second clamping block, and the pipe is allowed to continuously move along the penetrating direction.

Provided is a bell-mouth structure (20). The bell-mouth structure (20) comprises: a cylindrical part (21) constructed so as to surround a fan 12; a base part (30) extending outward from one end of the cylindrical part; and a plurality of reinforcement members (33 / 35) protruding downward from a surface forming the base part (30). The plurality of reinforcement members (33 / 35) are provided at a plurality of positions around the cylindrical part (21) in directions generally symmetric with respect to the center (O) of the cylindrical part (20) in a plan view of the base part (30). The plurality of reinforcement members (33 / 35) each have a shape that is curved with respect to the center of the cylindrical part (21).

The utility model belongs to the waste heat recovery technical field, concretely relates to a waste heat recovery equipment, including heat recovery channel, the evaporimeter of setting in the air outlet of heat recovery channel and the water tank of setting in the inboard of evaporimeter, the included angle of the side wall surface opposite water tank and evaporimeter is acute angle, the horizontal cross section of water tank is trapeziform, the utility model discloses the included angle of the side wall surface opposite water tank and evaporimeter is acute angle, so that the side of water tank and evaporimeter have certain angle of inclusion, and the hot air plays a guiding effect, and increases heat recovery efficiency, trapeziform water tank design, cleverly utilize the trapeziform gap of one end of evaporimeter contacted, and the sufficient clearance is left, and forms a half horn mouth smooth air duct, and the air inlet guiding effect is enhanced.

This invention relates to the field of heat dissipation technology for power distribution cabinets, specifically an energy-saving power distribution cabinet with easily adjustable temperature. The cabinet includes a cabinet body, a first fan, a second fan, a compressor, a connecting pipe, an exhaust duct, a flexible hose, a fixed housing, and a ventilation duct. The fixed housing is fixedly connected to the outer wall of the cabinet body. The first and second fans are mounted on the fixed housing. The first fan is connected to one end of the compressor, and the other end of the compressor is connected to the exhaust duct via the connecting pipe. The exhaust duct is connected to the ventilation duct via the flexible hose. An elastic membrane is installed on the inner wall of the ventilation duct, and a flared end is provided at the end of the ventilation duct away from the flexible hose. By adjusting the direction of the ventilation duct, the flared end can be aimed at areas with severe heat generation for precise cooling, improving heat dissipation efficiency. The flexible direction adjustment also eliminates heat dissipation dead zones inside the power distribution cabinet, resulting in greater energy savings through graded heat dissipation and precise cooling.

The utility model relates to the field of explosion -proof, specifically is a kind of explosion -proof horn mouth, including sealing sleeve, the inside of sealing sleeve is provided with the connecting barrel matched therewith;The inside of connecting barrel is inserted with plugging piece, and the end of plugging piece is in abutment with sealing sleeve and limits plugging piece, prevents plugging piece from separating. In order to be able to install at least two wires in the inside of plugging piece, rotate sealing sleeve, the inner wall of sealing sleeve extrudes connecting barrel, and sealing sleeve is also in abutment with the tail end of plugging piece, prevents plugging piece from separating on sealing sleeve;When connecting barrel is extruded on plugging piece, the inner wall of plugging piece is extruded on wire, so that wire is pressed tightly, and there will not be gap between the wire and plugging piece of pressing tightly, the aperture size of horn mouth mounting hole will be greater than the inner diameter size of connecting barrel, less than the outer diameter size of connecting barrel, and horn mouth mounting hole will limit connecting barrel to be inserted into the inside of explosion -proof casing, so that the connecting barrel after installation is stable.

The present utility model simplifies the geometric transition between a bell mouth body (1) and a lug holder (20), while also providing an alternative for maintenance and replacement of the system in the event of failure. To this end, the present utility model relates to a lug holder (20) for locking a bend stiffener in a bell mouth (10), wherein the bell mouth (10) comprises a bell mouth body (1) and a plurality of recesses (11), wherein said recesses (11) comprise a plurality of threaded holes (5), a circular orifice (12), and a surface (13). The lug holder (20), according to the present utility model, further comprises: a lug holder block (2), a flange (4), which comprises a plurality of through-holes (41), and a coupling pin (21). The coupling pin (21) thus engages inside the circular orifice (12), the surface (13) engages with the surface of the flange (4), and the plurality of threaded holes (5) are concentric with a plurality of through-holes (41), wherein a plurality of screws (3) engage in the plurality of through-holes (41) and are fastened in the plurality of threaded holes (5).

The utility model relates to a fan with horn mouth shape integral injection molding mesh cover, including the air duct, impeller and motor of fan, the air duct includes the air inlet cylinder of lower part cylindrical ring and the air outlet cylinder of upper horn mouth shape, the lower end of air inlet cylinder is shaped with rectangular mounting panel, the upper end is shaped with the horn mouth shape of link cylinder mouth, the upper end of link cylinder mouth is shaped with the circular lower connecting edge, the lower end of air outlet cylinder is shaped with the upper connecting edge opposite with lower connecting edge, and the upper connecting edge is fixed with lower connecting edge through first bolt component, the upper end of air outlet cylinder is shaped with the protective mesh cover, and the middle part of protective mesh cover is shaped with the downward recess and is shaped with the circular truncated cone shape of fairing, the fan aims at vortex problem, and designs a kind of injection integrated mesh cover, and the inside and outside of mesh cover are equipped with anti-vortex structure, can eliminate the vortex of axial fan air outlet end, improve the efficiency of fan.