187results about How to "Reduce extrusion pressure" patented technology

The invention discloses a hydraulic anchor convenient to withdraw for oil field downhole operation, and relates to the technical field of oil field downhole tools. Comprising a body; the anchoring units are all arranged in the main body, and each anchoring unit comprises an elliptical slip which is connected into the main body in a sealed and sliding mode; the mounting seat is fixedly connected to the main body, a connecting frame is fixedly connected to the side, away from the central axis of the main body, of the mounting seat, and a first elastic piece is fixedly connected between the connecting frame and the oval slip; the plugging ring is arranged on the mounting seat, a through hole is formed in the mounting seat, and the plugging ring is used for plugging the through hole in the mounting seat. After anchoring is completed, the mounting seat and the plugging ring are used for separating the elliptical slip from the interior of the main body, so that the influence of pressure fluctuation in the main body on the elliptical slip is reduced, the extrusion force of the elliptical slip on the wall of a casing pipe is kept stable, and the probability that the casing pipe is damaged, anchoring fails and the like is further reduced.

The invention relates to the technical field of hardware machining, and discloses a drilling machine for precise hardware machining and a using method thereof.The drilling machine comprises a containing table, a connecting frame is fixedly connected to the top of the containing table, two clamping blocks are slidably connected to the top of the containing table, and an electric telescopic rod is started to push a sliding block to descend; when a workpiece is drilled, a rotating rod and a drill bit descend to be close to the workpiece, meanwhile, a motor is started to drive a second belt wheel to rotate, a transmission belt rotates, the rotating rod and the drill bit rotate to drill the workpiece, meanwhile, when the rotating rod rotates, a round ball rod can rotate around the center of a fixed circular ring, the round ball rod can incline, and a first connecting ring can be pulled by the round ball rod; the first connecting ring is moved downwards to descend, so that an extrusion ring descends, an extrusion plate descends, cooling liquid in a liquid storage tank is extruded, the extruded cooling liquid is sprayed out through a communicating hole to flush the surface of the drill bit, and therefore chippings attached to the surface of the drill bit are reduced, and the abrasion speed of the drill bit is effectively reduced.

The invention provides a battery monomer, a battery device and a power utilization device. The battery monomer comprises a shell, an electrode terminal, an electrode assembly, a current collecting part and a first insulating part, the shell is provided with a first wall, and the electrode terminal is arranged on the first wall. The electrode assembly is contained in the shell and comprises an electrode body and a tab, and the tab is led out from the end, in the thickness direction of the first wall, of the electrode body. The current collector is arranged in the shell, electrically connected with the tab and the electrode terminal and provided with a welding part, and the welding part is connected with the electrode terminal in a welded mode. The first insulating part is arranged on the side, opposite to the electrode terminal, of the welding part and comprises a first part, the first part is arranged on the side, facing the electrode body, of the first insulating part, and the Young modulus E of the first part is larger than or equal to 0.5 MPa and smaller than or equal to 3 MPa. According to the battery monomer provided by the invention, the risk of damaging the electrode assembly by the first insulating part is reduced, the risk of short circuit in the battery monomer is reduced, and the reliability of the battery monomer is improved.

The utility model discloses a wire rod feeding mechanism of cold header, including frame subassembly and assembling on the frame subassembly, frame subassembly includes base and hinge joint installation base front end and wrap the protective cover of feeding subassembly outside, feeding subassembly includes the fixed plate that is fixed mounting base top, and the fixed plate is fixed mounting base top. The front end of the fixing plate is respectively and rotatably provided with two pressing wheels which are symmetrically distributed, the front end of the fixing plate is rotatably provided with a traction wheel which is located at the bottoms of the two pressing wheels, and the pressing wheels extend into grooves of the traction wheel in an annular protrusion shape. According to the wire feeding mechanism of the cold header, the situation that wires slip during conveying can be avoided, meanwhile, through flexible supporting of the movable base, the situation that the surfaces of the wires are sunken due to strong extrusion of the wires can be avoided, the wires can be kept in a good appearance state, and the production quality of products is effectively improved.

The utility model relates to the technical field of sintering, and discloses a graphite boat for sintering a hard alloy product, which comprises a frame, the bottom of the frame is provided with a slot, the inside of the frame is fixedly connected with a wave-shaped plate, and the shape characteristic of the wave-shaped plate is that the middle part is gradually reduced outwards. According to the graphite boat for sintering the hard alloy product, the structure of the wave-shaped plate is set to be in a W shape and is reduced outwards, so that a worker can place cylindrical hard alloy products of different sizes in the concave positions of the wave-shaped plate, the contact area between the round hard alloy products and the wave-shaped plate is reduced through the W-shaped concave surfaces, and the products are in a suspended state; the extrusion force borne by the product when the product vertically faces downwards is reduced, the bottom of the product is prevented from being extruded, collapsed and deformed in the sintering process, the circulation performance of heat in the frame is improved through the formed round holes and the through holes, and the uniform heating performance of the device when the product is sintered is improved.

The present invention relates to the field of groundwater monitoring, and in particular to a multifunctional groundwater sampling device, including a rope, a sampling ring and a rotating rod I, etc.; each sampling ring upper end face and lower end face are installed with a plurality of electric rotating shafts I, and the rotating part of each electric rotating shaft I is fixedly connected with a rotating rod I, and the rotating rod I is driven to rotate by the electric rotating shaft I. The present invention puts the sampling ring and the submersible pump into the groundwater monitoring well together when washing the well, so that the submersible pump extracts the stagnant water and the impurities generated when the sampling ring and the submersible pump descend in the groundwater monitoring well, and then the sampling ring is used to perform stratified sampling of the groundwater after the groundwater is restored and the impurities such as silt are precipitated, thereby avoiding the problem that the existing sampling equipment cannot avoid hitting the well wall of the groundwater monitoring well, so that impurities such as dust or algae attached to the well wall fall into the groundwater, resulting in an increase in impurities in the groundwater and affecting the results of groundwater sampling.

The invention relates to the technical field of gypsum board production, and discloses a gypsum board cutting device for gypsum board production and processing, which comprises a cutting table, the top of the cutting table is fixedly connected with a fixing frame, the top of the cutting table is slidably connected with two roller frames, and a motor is started to drive a first connecting rod to rotate and enable a second connecting rod to rotate; when the second connecting rod rotates, a sliding block can be pushed to move up and down, when the sliding block moves downwards, a fixing rod moves downwards, a cut-off tool descends, the cut-off tool makes contact with a gypsum board, a first connecting rod is driven to descend and slide on the side wall of a concave-convex block, and then the first connecting rod is squeezed; the gypsum board cutting device moves towards the first fixing plate to drive the cut-off tool to move, the cut-off tool moves transversely while extruding a gypsum board, and when the cut-off tool conducts transverse cutting, the cutting force is small, tearing of surface layer paper of the gypsum board is reduced, and burrs are effectively prevented from occurring after the surface layer paper of the gypsum board is cut.

The utility model belongs to the technical field of batteries, in particular relates to a battery pack guard plate assembly and a battery pack, and aims to solve the problem that the sealing performance of the battery pack is poor. The battery pack protection plate assembly comprises a first protection plate and a second protection plate which are oppositely arranged along a first direction, a side plate connected with the first protection plate and the second protection plate, and a reinforcing plate arranged between the first protection plate and the second protection plate. The reinforcing plate comprises at least two sections which are arranged in sequence, the normal direction of each section is crossed with the first direction, and each section in the reinforcing plate is inclined relative to the first protective plate and the second protective plate, so that the overall rigidity of the battery pack protective plate assembly is improved. In various bottom ball hitting working conditions of the second protection plate, through deformation and even breakage of the second protection plate and the reinforcing plate, the extrusion force transmitted to the first protection plate is reduced, the extrusion force transmission path is optimized, the stress of the first protection plate is reduced, and the first protection plate is prevented from being damaged or cracked, so that the overall sealing performance of the battery pack is ensured.

The utility model discloses a terminal for solenoid valve coil assembly and solenoid valve coil assembly, the terminal for solenoid valve coil assembly is used for connecting to the lead of coil, including: main part and be provided the wire clamping part of main part, the wire clamping part is provided with the convex rib and the groove that are arranged opposite to each other, the convex rib and the groove enclose to form the wire clamping groove that is used for clamping the lead. According to the terminal, the protruding rib and the groove which are opposite to each other are arranged on the wire clamping part, the protruding rib and the groove are matched with each other and define the wire clamping groove used for clamping the lead wire, the lead wire can be clamped more easily through the wire clamping groove, the bending and deformation degree of the wire clamping part can be reduced, breakage caused by excessive deformation of the wire clamping part can be avoided, and the service life of the terminal is prolonged. And the lead can enter the groove more easily, that is, the groove has a restraining effect on the lead, the position of the lead can be restrained, the position of the lead is prevented from deviating, meanwhile, extrusion force borne by the lead can be reduced, the lead can be prevented from being pinched off, and then the yield and quality of products are improved.

The utility model relates to the technical field of glasses, in particular to a glasses frame, which comprises a glasses frame, pile heads, elastic sheets and glasses legs, the glasses frame is connected with the pile heads, the number of the pile heads, the number of the elastic sheets and the number of the glasses legs are all two, the pile heads, the elastic sheets and the glasses legs are connected in a one-to-one correspondence mode, and the pile heads, the elastic sheets and the glasses legs are connected in a one-to-one correspondence mode. Each pile head is arranged on the two sides of the glasses frame respectively, each elastic piece comprises an elastic arm, a blocking part and a connecting part, the elastic arms are rotationally connected with the pile heads, the blocking parts are arranged on the sides, close to the glasses legs, of the elastic arms and used for abutting against the pile heads, and the connecting parts are connected with the glasses legs and used for abutting against the pile heads. The glasses legs are provided with connecting positions connected with the connecting parts, and the connecting positions and the pile heads are arranged at intervals. According to the spectacle frame disclosed by the utility model, the connecting parts of the elastic sheets are connected with the connecting positions of the spectacle legs, and the connecting positions of the spectacle legs and the pile heads are arranged at intervals, so that when the elastic sheets stop rotating relative to the pile heads under the matching of the blocking parts and the pile heads, the spectacle legs can relatively rotate around the connecting positions of the spectacle legs through the connecting parts of the elastic sheets; when the spectacle frame is worn, the head of a crowd with a large head circumference can be conveniently clamped through the counter-acting force of the elastic arms, and the extrusion force of the spectacle legs on the head can be effectively reduced, so that the discomfort of the spectacle frame during wearing is reduced, and the purpose of improving the wearing comfort of the spectacle frame for the crowd with the large head circumference is achieved.

The invention discloses a comprehensive production line for a plastic pipe, relates to the technical field of pipe processing, and aims to solve the problems that when the pipe is cut, the pipe is concave inwards and liquid on the surface of the pipe is not cleaned thoroughly due to an existing cutting method. Comprising a pipe and a cooling device, liquid used for cooling the pipe is arranged in the cooling device, the pipe penetrates through the cooling device, and a wiping mechanism, a clamping mechanism and a cutting box are arranged on the front side of the cooling device from near to far; through all parts arranged in the cutting mechanism, when a motor drives a cutting driving wheel to rotate, the cutting driving wheel drives a cutting transfer wheel to rotate in a circular groove of a rotating disc through a cutting driven wheel; teeth arranged on the end face of a cutting transfer wheel are meshed with a synchronous gear of a cutting assembly to drive cutting pieces to rotate, the two sets of symmetrically-arranged cutting pieces cut a pipe, and through the structural design of a rotary driving wheel, a rotary gear and a rotary disc, the cutting pieces are controlled to cut the pipe.

The utility model relates to the technical field of filter elements, in particular to a special filter element structure for a sealed hydraulic pump station, which comprises a filter element, sealing components are movably sleeved at two ends of the filter element, each sealing component comprises a sealing ring movably sleeved at two ends of the filter element, and a sealing ring is movably sleeved in a clamping groove on the outer side surface of each sealing ring. And an adjusting assembly is movably arranged in a clamping groove in the outer side surface of the sealing ring. According to the utility model, the arc-shaped push plate expands outwards to push the sealing ring to extend outwards, so that the friction force between the sealing ring and an equipment mounting binding surface is increased, the force used when the filter element is mounted is reduced, the filter element is more convenient to mount, and meanwhile, the arc-shaped push plate moves inwards to reduce the friction force between the sealing ring and the equipment mounting binding surface, so that the service life of the filter element is prolonged. And when the mounting height of the filter element is relatively high, a worker can easily lift and disassemble the filter element upwards, so that damage to the filter element caused by back-and-forth shaking of the filter element for disassembly due to insufficient disassembly force is avoided, and the filter element is more convenient to disassemble.

The utility model relates to the technical field of titanium dioxide recovery, in particular to a continuous recovery device for titanium dioxide in a catalyst, which comprises a support frame and a protective shell fixedly arranged on the support frame, and a recovery grinding box is rotatably arranged in the protective shell. The transmission shaft rotates to drive the filter plate to shake perpendicular to the ground instead of a vibration motor, so that the stability of the device during use can be improved, the loss of electric energy during use of the vibration motor can be reduced, and the energy-saving and environment-friendly effects are achieved; through rotation of the spiral blades, the catalyst can be conveyed into the recycling and grinding box at a constant speed to be ground, and the catalyst can be prevented from splashing out of the recycling and grinding box during grinding; and the grinding roller rotating in the reverse direction of the recovery grinding box can conduct rolling friction refining on the catalyst with large particles, in this way, the upward extrusion force generated when the grinding roller grinds the catalyst can be reduced, and therefore the grinding roller is not prone to deformation in the using process.

The utility model discloses a cutting device for producing a glass fiber sleeve, which belongs to the technical field of cutting equipment and comprises a workbench, a support and a cutting mechanism, the workbench is provided with a limiting mechanism, and the limiting mechanism comprises a first limiting plate, a second limiting plate, a spring, a connecting rod, a gasket, a pull ring, an arc-shaped plate and an annular sheet. The first limiting plate and the second limiting plate are both fixed to the workbench, limiting holes are formed in the first limiting plate and the second limiting plate, a connecting hole is formed in the second limiting plate, the annular piece is fixed to the limiting plates, the two ends of the connecting rod are fixed to the pull ring and the arc-shaped plate respectively, the gasket is arranged in the connecting hole and fixed to the connecting pipe, and the connecting rod is sleeved with the spring. The glass fiber sleeve cutting device has the advantages that the limiting mechanism is arranged, so that a glass fiber sleeve is fixed to the workbench, the cutting mechanism is driven to cut the glass fiber sleeve, the glass fiber sleeve does not need to be manually pressed during cutting, and the working efficiency is improved.

The present application generally relates to the field of compressor technology, and specifically, to a vane, a compressor and an air conditioner, wherein the vane includes a main body, a first friction part and a second friction part, the first friction part and the second friction part are respectively movably mounted on the main body, a pressure transmission structure is arranged between the first friction part and the second friction part, the pressure transmission structure is used for the first friction part or the second friction part to slide back and forth when the first friction part or the second friction part is squeezed by the inclined roller, and the pressure transmission structure applies an extrusion force toward the front end of the vane to the first friction part and the second friction part respectively, so that the first friction part and the second friction part are in sealing contact with the circumferential side of the roller. In this scheme, the stability of the contact stress between the vane and the roller is guaranteed, and when the roller is tilted, the contact stress between the vane and the roller on one side of the axial direction of the roller is avoided to be too large, thereby reducing abnormal wear and uneven wear of the vane.

The present invention discloses a stable powder supply method and device suitable for a variable cross-section powder storage section, which belongs to the field of fluidized powder conveying. The structure of the powder supply device of the present invention is basically the same as the existing structure, and the powder storage section has an irregular cross-section; a plurality of slide rails are arranged along the inner wall of the powder supply device; the flexible dense membrane is connected to the guide rail on the circumferential outer side and fixed at the end of the slide rail, that is, fixed at the end of the powder supply device; the powder supply gas enters the powder storage section from the powder supply gas inlet of the powder storage cover, and forms a small pressure difference inside the upstream of the powder storage section, pushing the slider to move; under the action of the pressure difference between the powder supply gas pressure of the powder storage section and the target environmental pressure, the flexible dense membrane moves downstream to push the powder; through the movement of the slider on the guide rail, it is ensured that the flexible dense membrane is always in contact with the powder body, and the slider, the flexible dense membrane and the powder move together. The present invention provides more space selection margin for the design of aircraft using powder engines.

The utility model discloses a pressure-resistant environment-friendly paper box which comprises a paper box body, a supporting plate is fixedly arranged in the paper box body, a plurality of supporting sleeves are fixedly arranged at the bottom of the supporting plate, the cross section of each supporting sleeve is in a regular hexagon shape, a partition plate is fixedly arranged in the paper box body, and the partition plate is fixedly connected with the supporting plate. A connecting assembly is arranged on the side, close to the carton body, of the partition plate, the partition plate is provided with a first elastic belt and a second elastic belt through the connecting assembly, the first elastic belt and the second elastic belt are made of the same materials and are made of latex, and a buffer plate is fixedly arranged on the side, close to the carton body, of the second elastic belt. A plurality of fixing angle plates are fixedly arranged at the bottom of the carton body, the device can buffer extrusion force in the horizontal direction, and the supporting effect in the vertical direction is improved, so that the pressure resistance of the carton is improved, and articles in the carton are prevented from being extruded and damaged.

The present invention relates to the technical field of honeycomb ceramic materials, and in particular to a cordierite honeycomb ceramic material with low heat capacity and high specific surface area and a preparation method thereof. The slurry comprises an inorganic solid component, an organic component and water; the inorganic solid component comprises spherical magnesium hydroxide with narrow particle size distribution, spherical aluminum hydroxide and spherical fused silica; the particle size D of the spherical magnesium hydroxide powder with narrow particle size distribution is 50 0.1‑2 μm, particle size D 97 Less than or equal to 20μm; particle size D of spherical aluminum hydroxide powder 50 1‑6 μm, particle size D 97 Less than or equal to 20μm; Spherical fused silica powder particle size D 50 6‑12 μm, particle size D 97 Less than or equal to 20μm, sphericity greater than or equal to 98%. This method has low extrusion pressure, the obtained material has high pore density, and can achieve high porosity without adding pore-forming agents, with ultra-thin walls; it can be applied to various low heat capacity and high specific surface area requirements.

The invention provides a device for manufacturing a rock core in an axial compression mode and a method for manufacturing an indoor rock core in an axial compression mode, the device for manufacturing the rock core in the axial compression mode is characterized in that a frame assembly is provided with a containing space and at least two pushing holes, and the two pushing holes are coaxially formed in the two opposite sides of the containing space; the mold assembly is detachably arranged in the containing space, the mold assembly is provided with a pressing deformation groove, and the pressing deformation groove is filled with a rock core raw material; the pressing oil cylinder is arranged on the frame assembly and located in the containing space, at least one part of the pressing oil cylinder abuts against the mold assembly, and the volume of the pressing deformation groove is changed in the stretching and retracting process of the pressing oil cylinder so that the rock core raw materials can be pressed into rock cores; the coring device is arranged on the frame assembly, at least one part of the coring device is telescopically arranged in one pushing hole, and the coring device can stretch into the pressing deformation groove and push the rock core out of the other pushing hole. The problems that in the prior art, an artificial rock core is large in manufacturing difficulty and high in manufacturing cost are solved.

The present application relates to a kind of production methods of double-layer alloy composite seamless pipe.The outer layer material of double-layer alloy composite seamless pipe is low-carbon steel, the inner layer material is nickel-based alloy, outer layer alloy bar material is continuous casting billet or rolling blank, and inner layer alloy bar material is forging blank.The production steps are: (1) blank preparation; (2) upsetting; (3) blank machining; (4) hot expansion; (5) hot extrusion; (6) heat treatment; (7) surface treatment; (8) cold rolling; (9) finishing treatment.The blank preparation process includes: (1) theoretical calculation; (2) blanking; (3) electroplating; (4) blank assembly; (5) head and tail pad welding.The double-layer alloy composite seamless pipe produced by the present application has firm combination of the inner and outer layers of alloy, reduces the defects of extrusion delamination, the outer layer alloy has high strength, the inner layer alloy has good corrosion resistance, improves the yield rate of processing defects, and reduces material cost.

The utility model provides a secondary battery, a battery pack and an electronic device. The secondary battery comprises a shell, a pole and an insulating part, the shell comprises an end wall, and a pole hole is formed in the end wall; the pole comprises a columnar part penetrating through the pole hole and a riveting part folded towards the outer edge of the end wall relative to the columnar part; wherein the part, connected with the columnar part, of the riveting part is a transition part, and the transition part is subjected to material deformation when the riveting part is turned over towards the outer edge of the end wall; the insulating part is used for isolating the pole and the end wall and comprises a pressure-bearing part in contact with the pole, and the pressure-bearing part bears extrusion stress when the transition part is bent; wherein at least one of the transition part and the pressure-bearing part is provided with a stress buffer structure, and the stress buffer structure is used for relieving the pressure of the transition part on the pressure-bearing part; according to the utility model, the technical problem that a large extrusion force is generated on an insulating part in the riveting process of the pole column can be solved.

The invention discloses a full-automatic quick gate valve, which relates to the field of valve bodies and comprises a valve seat mounted on a pipeline, a valve plate slidably arranged in a gate groove of the valve seat, an air cylinder for driving the valve plate to vertically move and a mounting frame fixedly connected to the valve seat, the air cylinder is fixedly connected to the mounting frame, and a flow channel is arranged in the middle of the valve seat. A mounting groove is formed in the inner circumferential wall of the flow channel, the door groove is formed in the groove bottom circumferential wall of the mounting groove, the mounting groove is a rectangular-ambulatory-plane groove, and two first sealing devices are arranged in the mounting groove and symmetrically arranged on the two sides of the valve plate; the first sealing device comprises sealing rubber used for abutting against the valve plate and an annular mounting seat used for mounting the sealing rubber, and a thrust device capable of pushing the mounting seat in the direction close to the valve plate is arranged on the valve seat. The valve plate has the effects that abrasion of the valve plate to the sealing rubber is reduced, and the service life of the sealing rubber is prolonged.

The present invention discloses an electrical wire threader for building electrical construction, comprising a wire threading bracket, a wire threading tube and a transmission gear located below the wire threading tube are arranged on the wire threading bracket, a notch for making way opposite to the transmission gear is provided at the bottom of the wire threading tube, the transmission gear and the wire threading bracket are rotatably connected, a coaxial slot disk is fixedly connected to one side of the transmission gear, a wedge-shaped block uniformly distributed in the circumferential direction is fixedly connected to the inner arc wall of the slot of the slot disk, and an output shaft coaxial with the transmission gear is rotatably connected to one side of the wire threading bracket. In the present invention, by arranging an operating plate, an output shaft, a cantilever, a swing arm, a hanging shaft, a wedge-shaped block and a traction member, the transmission gear has the function of rotational overload protection, can effectively protect the tooth groove at the bottom of the lead-in tube, and under the action of the traction member, the hanging shaft can also impact the wedge-shaped block when moving, so that the transmission gear can produce a pulse transmission effect, ensuring that the threading can be carried out continuously.

The utility model discloses a polymer battery cell with safety protection, which comprises a battery cell body, an aluminum plastic film is fixedly arranged on the surface of the battery cell body, a bonding layer is fixedly arranged on the surface of the aluminum plastic film, a first air bag is fixedly arranged on the surface of the bonding layer, a connecting block is fixedly arranged on the surface of the bonding layer, and a second air bag is fixedly arranged on the surface of the connecting block. A first protection plate is fixedly arranged on the surface of the connecting block, a spring is fixedly arranged on the side, away from the battery cell body, of the first protection plate, one end of the spring is fixedly connected with the first protection plate, and a second protection plate is fixedly arranged at the other end of the spring; a second air bag is fixedly arranged on the side, away from the battery cell body, of the first protection plate, the polymer battery cell is filled with carbon dioxide or other flame-retardant gas towards the first air cavity and the second air cavity, the extrusion effect on the battery cell body can be relieved, and meanwhile safety protection can be conducted in time when the battery cell is spontaneously ignited.

The invention relates to a pipeline structure, a drainage system and air conditioning equipment, the pipeline structure comprises a pipe body, an elastic clamping part is arranged at the first end of the pipe body, the elastic clamping part comprises an annular clamping groove and a limiting structure which are sequentially arranged in the axial direction of the pipe body, and a deformation receding notch is formed in the periphery of the limiting structure. According to the pipeline structure provided by the invention, the elastic clamping part is arranged at the first end of the pipe body and can shrink and deform under the extrusion action of the inner circumferential surface of the mounting hole, so that the first end of the pipe body can extend out of the mounting hole. When the annular clamping groove is connected with the mounting hole in a clamped mode, the limiting structure abuts against the side face of one side of the mounting hole to achieve limiting. A deformation abdicating notch is formed in the periphery of the limiting structure, and one or more strength weak areas can be formed in the periphery of the limiting structure; when the elastic clamping part contracts and deforms, other parts in the limiting structure can be contracted and extruded towards the area where the deformation receding notch is located, and the contraction deformation difficulty of the limiting structure and the elastic clamping part can be remarkably reduced.

The utility model discloses efficient fabric ironing equipment, which belongs to the technical field of ironing equipment and comprises a worktable and an ironing mechanism, supports are arranged at two ends of the worktable, a limit plate is arranged between the supports at two ends of the worktable, two ends of the limit plate are fixedly connected with the two supports respectively, and the ironing mechanism is arranged on the supports. A positioning mechanism is further arranged on the workbench and comprises a suction cup, a moving rod, a telescopic rod, a fixing plate and a spring, the moving rod is movably connected with the workbench and fixedly connected with the fixing plate, the telescopic rod is fixed to the fixing plate, the telescopic rod is fixedly connected with the suction cup, and the telescopic rod is sleeved with the spring. The fabric ironing device has the advantages that fabric is placed on the workbench, the suction cups, the movable rods, the telescopic rods, the fixing plates and the springs are matched with one another, then the suction cups extrude the fabric, the fabric is fixed to the workbench, and then the fabric is not prone to wrinkling in the fabric ironing process through the ironing mechanism.

A screw-in type mushroom head buffer cushion buckle comprises a mushroom head which comprises a conical surface section and a circular ring section which are integrally formed, and a spiral curved surface is arranged on the inclined surface of the conical surface section; a connecting plate; the connecting section is used for connecting the mushroom head and the connecting plate; wherein the mushroom head, the connecting section and the connecting plate are integrally formed, a groove is formed in the top of the conical surface section of the mushroom head and used for pre-storing deformation, the mushroom head and the mounting hole are guided and screwed in through the spiral curved surface by pressing the connecting plate, and extrusion force is reduced. During installation, the mushroom head is aligned with the installation hole, then the connecting plate is pressed, axial force borne by the mushroom head is converted into circumferential force through the spiral curved surface of the mushroom head, the circumferential force enables the mushroom head to be tightened and compressed in the circumferential direction, and then the circumferential size of the mushroom head is smaller than that of the installation hole till the circular ring section of the mushroom head penetrates through the installation hole. As the mushroom head enters through circumferential spiral sliding instead of circumferential interference and extrusion at the same time, the extrusion force does not need to be too large.

The breathing machine comprises a main machine and a humidifying tank, the main machine is provided with an inserting base, the humidifying tank is provided with an inserting section, the inserting section can be in inserting fit with the inserting base in the first direction and can be separated from the inserting base in the second direction opposite to the first direction, and the inserting section is provided with an air outlet adapter pipe; the bayonet socket is provided with a receding groove extending in the first direction, so that when the humidifying tank is matched with the main machine in an inserted mode, the air outlet adapter pipe can enter the receding groove in the first direction. In the process of assembling and disassembling the humidifying tank, the protruding air outlet adapter tube does not need to be disassembled, and the humidifying tank inserted with the air outlet adapter tube can be integrally inserted into the bayonet socket, so that the assembling and disassembling steps of the humidifying tank are simplified, and the disassembling step of the air outlet adapter tube in the process of assembling and disassembling the humidifying tank is omitted. In addition, the risk that internal water leaks from the air outlet due to shaking of the humidifying tank is avoided, the cleaning burden of a user is reduced, and the use experience is improved.