492results about How to "Not easy to fall off" patented technology

The present application relates to the technical field of lead-acid battery electrode, aiming at the problem of thick lead paste on the existing lead-acid battery plate, large resistance during charging and poor rate discharge performance of the battery, a preparation method of lead-acid battery membrane electrode is disclosed, comprising the following steps: adding a binder to the prepared lead paste, rolling the lead paste containing the binder on the lead skin to form a lead paste film layer, immersing the lead skin and the attached lead paste film layer in a sulfuric acid solution, and solidifying and drying after taking out; the binder is polytetrafluoroethylene emulsion or a binder containing polytetrafluoroethylene emulsion. Unlike the high molecular film attached to the surface of the lead-acid battery plate in the prior art, the present application obtains a thin film electrode with thin thickness, uniform active material dispersion, large active material and current collector contact area and good conductivity, and has the advantages of large rate charge and discharge cycle.

The utility model discloses an embedded block blank lifting appliance which comprises a lifting ring, a pin shaft assembly, upper pull arms, lower clamping arms and a tong head plate and further comprises a limiting rod assembly, the length of the limiting rod assembly can be adjusted, one end of the limiting rod assembly is rotationally connected to the outer wall of one upper pull arm through a pin shaft, and the other end of the limiting rod assembly is rotationally connected to the other end of the limiting rod assembly. And a limiting pin is arranged on the outer wall of the other opposite upper pulling arm, and the other end of the limiting rod assembly can be clamped to the limiting pin, so that a jaw between the two oppositely-arranged tong head plates is opened, and the opening degree is matched with the width of the head of the steel rail inlaid block. According to the embedded block blank lifting appliance, the width of the opening jaw can be adjusted, so that the embedded block blank lifting appliance is suitable for clamping embedded blocks with different width specifications.

The application discloses a kind of carbon ceramic brake pad for grinding carbon ceramic brake disc, belong to brake pad technical field, solve the poor heat dissipation performance of existing ceramic brake pad, insufficient connection strength, leading to the problem of poor friction performance, it includes carbon ceramic lining plate and the carbon ceramic friction surface installed on carbon ceramic lining plate, multiple mortise grooves are set on the upper surface of carbon ceramic lining plate, multiple tenon heads matched with mortise groove are set on the lower surface of carbon ceramic friction surface, tenon head is embedded into mortise groove and forms mortise and tenon structure, connects carbon ceramic lining plate and carbon ceramic friction surface, ear plate is set on the circumference of carbon ceramic lining plate, and mounting hole is formed in ear plate;In the application, the friction coefficient is adjusted by designing ceramic phase composition and density of carbon ceramic friction surface and carbon ceramic lining plate, and carbon ceramic lining plate and carbon ceramic friction surface are connected by RMI process and mortise and tenon structure to improve the mechanical properties of connecting place, ensure braking safety, reduce thermal stress generated in braking process, so as to improve the friction performance, effectively guarantee braking effect, and prolong service life.

This utility model provides an anti-impact tread cleaner. A connecting seat is hinged to a piston rod, and a buffer sleeve is installed in the hinge hole. The piston rod has a mounting hole, into which a spring rod is inserted. The spring rod has a spring seat at its front end and is installed in a mounting hole on the rear cylinder head at its rear end. A return spring is sleeved on the spring rod, with its front end abutting against the spring seat on the piston rod and its rear end abutting against a gasket installed in the piston rod mounting hole. Each tooth of the rack has a trapezoidal cross-section, with the angle of the force-bearing surface on both sides being 73° to 77°. The angle of the side of the limiting pin that mates with the force-bearing surface is the same as the angle of the force-bearing surface. An exhaust hole is provided near the connecting seat at the end of the piston rod, and a first filter screen is provided on the exhaust hole. An air inlet is provided on the rear cylinder head, and a second filter screen is installed in the air inlet. This design prevents the rack from deforming upon abnormal impact, allowing the tread cleaner to operate normally. The filter screen can be reused after replacement, and the overall buffer sleeve increases the deflection angle of the connecting seat connected to the grinding wheel.

This invention relates to a reusable, detachable, perforated reinforcement and sealing structure for pressure-resistant composite material hulls used in deep-sea equipment. The structure comprises: an outer sealing reinforcement component fitted and sealed to the outer circumferential surface of the hull at a first circular hole; an embedded, segmented sealing core positioned between the outer sealing reinforcement component and the inner side of the hull, fitting and sealingly sealing the first circular hole; the outer guide surface of the embedded segmented sealing core fitting with the outer sealing reinforcement guide surface of the outer sealing reinforcement component; an inner sealing reinforcement component positioned within the central through hole of the embedded segmented sealing core and the first connecting hole of the outer sealing reinforcement component; the inner sealing reinforcement component fitting and sealingly sealingly with the first connecting hole; the inner sealing guide surface of the inner sealing reinforcement component fitting with the inner guide surface of the embedded segmented sealing core; a locking structure reinforcement ring fitted and positioned inside the hull; and a locking sealing plug detachably and securely connected to the inner sealing reinforcement component. This invention is used for perforated reinforcement and sealing of pressure-resistant composite material hulls used in deep-sea equipment.

The invention belongs to the technical field of chemistry, chemical engineering, materials and the like, and particularly relates to a composite material and a preparation method and application thereof.The composite material comprises a metal base material, a bottom coating and a surface coating, the surface of the metal base material is coated with the bottom coating, and the bottom coating comprises nanoparticles and a resin material; the surface coating is located on the upper surface of the bottom coating, and the surface coating comprises a fluorine-containing silane solution; wherein the upper surface of the bottom coating is provided with a surface microstructure, and the surface microstructure is formed by the nanometer particles in a protruding mode based on plasma etching. Wherein the bottom coating can form a surface microstructure to ensure the hydrophobic property, and can fix nanoparticles, so that the frost prevention durability is ensured, and the powder falling of the composite material in the use process is also avoided; the surface coating can further improve the hydrophobicity of the bottom coating under the condition that the surface microstructure is not influenced.

The utility model relates to a wig piece assembly which comprises a first wig piece (1) and a second wig piece (2) which are connected with each other in a matched mode, and the first wig piece (1) and the second wig piece (2) are connected to the hair of a user in a clamped mode. Each of the first wig piece (1) and the second wig piece (2) is provided with a wig wire (3), a bearing layer (4) and an adhesive layer (5), one end of the wig wire (3) is fixedly connected with the bearing layer (4), the adhesive layer (5) is matched with the bearing layer (4), and the bearing layer (4) is fixedly connected with the adhesive layer (5). By means of the design, the wig piece assembly and the real hair of a user can be connected more stably, meanwhile, the hair is not prone to being damaged, and the wig piece assembly is easy to detach.

The application relates to the technical field of sheet metal parts, and discloses a spliced sheet metal part, which comprises a plurality of splicing pieces, the splicing pieces are provided with grooves on one side, the other side of the splicing pieces away from the grooves is fixedly provided with protruding blocks, the middle part of the protruding blocks is provided with through grooves, limit blocks are symmetrically and slidably arranged in the through grooves, elastic pieces are connected between the two limit blocks, limit holes matched with the two limit blocks are symmetrically arranged on the inner wall of the grooves, and push blocks for pushing the limit blocks are slidably arranged in the limit holes. At this time, the limit blocks can be popped out from the through grooves under the elastic force of the elastic pieces and embedded into the corresponding limit holes, the protruding blocks are tightly clamped in the grooves and are not easy to fall off, the two connecting pieces can be tightly combined, the splicing firmness and stability are enhanced, and the splicing pieces are more beautiful.

The utility model relates to the technical field of trolleys, and discloses a foldable three-side trolley convenient to use, which comprises a bottom frame, angle iron fixedly welded in the bottom frame, a bottom plate arranged on the bottom frame, and a lock arranged at the bottom of the bottom plate. The second protective fence is folded towards the interior of the first protective fence through the hinges arranged between the second protective fence and the first protective fence, so that the space occupied by products when the products are stacked is reduced, and then the two rear trundle plates are additionally arranged on the left side and the right side of the bottom of the first protective fence; the caster plate can be connected with the bottom frame during assembly while the first universal wheel is installed, so that connection between the first protective fence and the bottom frame is achieved, and product assembly is facilitated; therefore, the inserting rods at the bottom of the second protective fence can be well inserted into the second protective fence to limit the second protective fence and keep the second protective fence stable.

The embodiment of the utility model provides a kind of manhole device and explosion vessel, it is related to explosion vessel technical field.The manhole device includes connecting flange, clamp assembly and hole cover assembly.Connecting flange is fixedly arranged in the position of manhole.The clamp assembly includes the clamp of being set on connecting flange.The edge of the end of clamp away from connecting flange is spaced apart and is provided with first wedge piece.Hole cover cavity is set in clamp.The clamp can rotate relative to the axis of connecting flange.The hole cover assembly includes manhole cover and opening and closing driving part.The edge of manhole cover is spaced apart and is provided with second wedge piece.Second wedge piece selectively corresponds with first wedge piece or the gap between first wedge piece.The opening and closing driving part is used to drive manhole cover to enter or move out hole cover cavity.The explosion vessel includes above-mentioned manhole device.The manhole device of the explosion vessel has good impact resistance, is easy to operate, and can meet the demand of quick opening.

The utility model relates to the field of loom accessories, and discloses a cloth cover stabilizing mechanism of a rapier loom, which comprises a bottom plate, the upper surface of the bottom plate close to the front end and the rear end is fixedly connected with a side plate, the inner side of the side plate and the upper end of the bottom plate are jointly provided with a stabilizing assembly, and the left end of the bottom plate is provided with a winding mechanism. The stabilizing assembly comprises a sliding groove, the sliding groove is formed in the end, close to the middle of the bottom plate, of the side plate, a sliding plate is slidably connected to the inner wall of the sliding groove, a sleeve is fixedly connected to the bottom end of the sliding plate, a sliding piece is slidably connected to the inner wall of the sleeve, and a connecting block is fixedly connected to the bottom end of the sliding piece. According to the utility model, through the arrangement of the stabilizing component, the compression roller can be in a state of compressing the cloth cover on the premise of providing a certain pressure to the cloth cover, so that the cloth cover is not easy to move along with the warp due to the pressure in the process of moving the warp up and down, and the effect of improving the stability of the cloth cover is achieved.

The utility model discloses an environmental geological soil sampling device, which belongs to the field of soil sampling devices and comprises a sampling cylinder, a push block and a push rod, the sampling cylinder is provided with a sampling chamber with an open lower end, a handle is arranged above the sampling cylinder, and a threaded hole communicated with the sampling chamber is arranged at the top of the sampling cylinder. A rotation stopping rib is arranged on the inner wall of the sampling cavity in a protruding mode, the length direction of the rotation stopping rib is consistent with the axial direction of the sampling barrel, the push block is connected into the sampling cavity in a sliding mode, an avoiding notch is formed in the position, corresponding to the rotation stopping rib, of the push block, the push rod is provided with external threads, the external threads are connected with the threaded hole in a matched mode, and the push rod abuts against the push block. According to the utility model, the rotation stopping rib is arranged in the sampling chamber, when the sampling cylinder is rotated, the rotation stopping rib pushes the soil in the sampling cylinder to rotate along with the sampling cylinder, the soil in the sampling cylinder is separated from the soil outside the sampling cylinder, and when the sampling cylinder is extracted upwards, the soil is not easy to fall off from the sampling cylinder.

The utility model relates to an excavator breaking hammer protective knife structure which comprises a breaking hammer fixing frame (1), a breaking hammer body (2) and a breaking drill bit (3), the breaking hammer body (2) is arranged on the breaking hammer fixing frame (1), and the breaking drill bit (3) is arranged at one end of the breaking hammer body (2). The breaking hammer is characterized in that the breaking hammer fixing frame (1) is provided with a protection piece (4) used for protecting and / or a breaking part (5) used for breaking or smashing objects, the protection piece (4) is matched with the breaking hammer fixing frame (1), and the protection piece (4) and / or the breaking part (5) are / is fixedly connected with or integrally formed with the breaking hammer fixing frame (1). According to the design, on one hand, the breaking hammer can be protected, and on the other hand, the breaking efficiency is improved.

The utility model discloses an acrylic cabinet door which comprises a door plate body, U-shaped clamping grooves are formed in the four edges of the door plate body respectively, two first U-shaped protection rods and two second U-shaped protection rods which are symmetrically arranged are clamped in the four U-shaped clamping grooves respectively in a sliding mode, two long clamping grooves are formed in the inner walls of the two ends of each first U-shaped protection rod respectively, and the two long clamping grooves are clamped in the second U-shaped protection rods respectively. The two ends of each second U-shaped protection rod are fixedly connected with two long clamping blocks, and the long clamping blocks on the two second U-shaped protection rods are clamped in the long clamping grooves in the two first U-shaped protection rods in a sliding mode respectively. According to the door plank, the four edges of the door plank body are protected through the first U-shaped protection rods and the second U-shaped protection rods, and the first U-shaped protection rods and the second U-shaped protection rods on the door plank body can be conveniently disassembled and assembled through sliding fit of the long clamping blocks and the long clamping grooves.

This utility model discloses a traction head, including a traction part and a connecting part. The connecting part engages with an anvil. Either the connecting part or the anvil has a recessed groove, and the other has a protrusion. When the connecting part engages with the anvil, the protrusion is inserted into the recessed groove. This engagement improves the reliability of the engagement and reduces the difficulty of detaching the connecting part from the anvil, making the traction head less prone to falling off during use. Assembly is simple; just insert the end of the anvil into the connecting part so that the protrusion is inserted into the recessed groove.

The utility model relates to a controller, a control system, electronic equipment and a vehicle. The controller comprises a shell; the circuit board assembly is arranged in the shell; the electromagnetic shielding mechanism is used for realizing electromagnetic shielding; wherein the electromagnetic shielding mechanism comprises an electromagnetic shielding piece and a supporting piece, and the supporting piece is arranged in the shell and used for connecting the electromagnetic shielding piece with the circuit board assembly. The electromagnetic shielding part is subjected to two-way pressure from the shell and the circuit board assembly, so that the electromagnetic shielding part is in tight contact with the shell, the circuit board assembly and the connector, and the electromagnetic shielding part cannot fall off after being used for a long time; the electromagnetic shielding piece which is in close contact and is not easy to fall off is formed, and the long-term stable electromagnetic shielding effect can be ensured.

This invention provides a composite current collector and its preparation method. The composite current collector includes: a PP base film; adhesive layers disposed on the upper and lower sides of the PP base film, the adhesive layers being obtained by treatment with a surfactant, an organic treatment agent, a first treatment agent, and a second treatment agent; metal layers disposed on the upper and lower sides of the adhesive layers; and protective layers disposed on the upper and lower sides of the metal layers. The solution of this invention can enhance the adhesion performance between the PP base film and the metal layers.

The utility model relates to cell culture tool technical field especially, more particularly to an array formula multi -hole separation cell culture dish. The utility model provides an array formula multi -hole separation cell culture dish, solves the technical problem that cell culture dish in prior art can only culture same kind of cell under same environment. An array formula multi -hole separation cell culture dish, including frame, culture cavity, culture cavity set up in frame, and mark, mark set up in frame, and, every mark corresponds an independent culture cavity, array formula multi -hole separation cell culture dish sets up a plurality of independent culture cavities, and every culture cavity can be regarded as an independent'small culture dish'. This makes under same frame, to same kind of microorganism in different nutrient solution, medicine or other environmental conditions can carry out culture experiment simultaneously.

The utility model discloses an anti-deviation and anti-wrinkling automobile foot mat, which belongs to the technical field of automobile foot mats, and comprises a bottom mat, the front end of which is connected with a baffle mat; the anti-skid pad surface is detachably connected with the baffle pad through an insertion connecting piece; the insertion connecting piece comprises a fixed clamping piece and a movable insertion piece, the fixed clamping piece comprises a clamping block, an insertion groove is formed in the clamping block, and the movable insertion piece comprises an insertion piece facing the direction of a vehicle head and is connected with a connecting piece. According to the technical scheme, during installation, the non-slip mat surface and the bottom mat can be fixedly connected only by inserting the inserting piece of the movable inserting piece into the inserting groove of the fixed clamping piece, operation is very convenient, and due to the fact that the inserting piece faces the direction of a vehicle head, force applied to the non-slip mat surface by the feet of a driver generally points to the front, the non-slip mat surface can be fixed under the action of the force. The plug-in piece can be ensured to be tightly connected with the plug-in groove all the time and cannot move backwards, and the situation that the plug-in piece slips off is not prone to occurring.

This invention provides a plant-based gel patch and its preparation method. The plant-based gel patch is prepared by mixing and freezing the following components, including modified polyvinyl alcohol, modified chitosan, functionalized borate ester, and distilled water; the preparation method is as follows: (1) modification of chitosan; (2) synthesis of functionalized borate ester; (3) preparation of allyl dihydrocaffeic acid; (4) graft modification of polyvinyl alcohol; (5) molding of the plant-based gel patch; the plant-based gel patch prepared by this invention can be used as a dressing for skin wound healing, and has antibacterial, good adhesion and self-healing ability.

The utility model discloses a mechanical load test device for a charging interface, which comprises a case with an inner cavity and a machine table connected to the side wall of the lower part of the case, a jig is rotatably arranged on the side wall of the upper part of the case, and a charging gun with a cable is mounted on the jig. A driving mechanism connected with the jig is arranged on the inner wall of the machine box, a lifting table is arranged on the top face of the machine table in a lifting mode, and a force application assembly and a clamping assembly connected to the upper portion of the force application assembly are placed on the lifting table. According to the utility model, the charging gun is installed through the clamp, a charging interface load test is carried out on the charging gun through the force application assembly after the cable of the charging gun is clamped by the clamping assembly, and the cable can be stably fixed by the clamping assembly, so that the cable is not easy to fall off, safety accidents are avoided, and the test efficiency is improved.

The invention relates to the technical field of anode carbon blocks, in particular to a sampled and repaired anode carbon block and a forming method thereof. A stepped hole formed by reaming the sampling hole is formed in the top of the carbon block body and comprises a large hole in the upper part and a small hole in the lower part; the small hole is filled with cold ramming paste, the large hole is connected with a stopper, the stopper is in interference fit with the large hole, and the bottom end of the stopper is connected with the bottom end of the large hole; the sampling holes are expanded to form stepped holes, and the stepped holes are filled with fillers respectively; the stepped hole is divided into an upper hole section and a lower hole section, and the upper hole section is located in the step. The step can play a role in blocking, so that the upper filler is not easy to fall off, and even if the lower filler falls off, the upper filler can still play a role in blocking the electrolyte from emitting upwards; and the corners are formed at the steps, so that obstruction can be increased, and electrolyte is prevented from emerging upwards along the stepped holes.

The application belongs to the technical field of charging guns, and discloses a charging gun button assembly and a charging gun. The charging gun button assembly comprises a supporting piece and a soft rubber button, and the supporting piece is provided with a mounting hole. The soft rubber button is arranged in the mounting hole and integrally formed on the supporting piece. The soft rubber button comprises a pressing part and a folded edge part connected to the periphery of the pressing part. The folded edge part is connected to the supporting piece, the pressing part is coaxially arranged with the mounting hole and does not intersect with the orthographic projection of the supporting piece in a first direction. The first direction is the pressing direction of the soft rubber button. The charging gun button assembly and the charging gun provided by the application have high connection strength between the soft rubber button and the supporting piece, reduce the risk of falling off, and have high reliability.

The application provides a valve repair system. A pre-clamping device in the valve repair system comprises a delivery shaft and a clamping assembly. The delivery shaft is provided with an axial delivery cavity and a receiving cavity. The delivery cavity penetrates through opposite ends of the delivery shaft, and the receiving cavity penetrates through the distal end of the delivery shaft. The delivery cavity is used to movably install a suture implant device. The clamping assembly comprises an upper clamping member and a lower clamping member. The upper clamping member comprises an upper clamping push rod movably installed in the receiving cavity and an upper clamping portion arranged at the distal end of the upper clamping push rod. The lower clamping member comprises a lower clamping push rod movably installed in the receiving cavity and a lower clamping portion arranged at the distal end of the lower clamping push rod. The pre-clamping device has a working state. In the working state, the upper clamping portion and the lower clamping portion are located outside the receiving cavity. The upper clamping portion has a first clamping surface, and the lower clamping portion has a second clamping surface. The first clamping surface cooperates with the second clamping surface to clamp a valve leaflet. The area ratio of the first clamping surface and the second clamping surface to the valve leaflet is greater than or equal to 1 / 6 and less than 1.

The utility model provides a kind of vertical keel point fixed connecting body of fabricated composite wallboard, it is related to fabricated building technical field, solve the technical problem of the material amount big, pipeline conflict and easy to fall off in prior art.The device includes connecting portion, setting portion and limiting portion, one end of the setting portion is provided with the connecting portion, the other end is provided with the limiting portion, the connecting portion is connected with vertical keel, the limiting portion is connected with the frame structure on composite wallboard, and for limiting the composite wallboard moves towards the direction away from the vertical keel direction.The utility model is used to be connected with vertical keel by connecting portion, limiting portion can be connected with composite wallboard, so vertical keel can be used alone to save material to avoid pipeline conflict, and limiting mode can avoid falling off problem caused by repeated thermal expansion and cold shrinkage.

This invention belongs to the field of industrial UV inkjet printing consumables technology, specifically relating to a UV white inkjet ink, its preparation method, and its application. The UV white inkjet ink contains aliphatic polyurethane acrylate, silane-modified epoxy polyester, reactive diluent monomer, photoinitiator, adhesion promoter, white pigment, and optional additives. The silane-modified epoxy polyester is prepared by the following method: esterification of a diol compound with itaconic acid, followed by a mercapto-olefin click reaction of the resulting unsaturated polyester polyol with mercaptosilane, and then a condensation reaction of the resulting silane-modified polyester polyol with halopropylene oxide to obtain the silane-modified epoxy polyester. The UV white inkjet ink provided by this invention has high adhesion to the substrate and is not easily peeled off after handling friction and outdoor exposure.

The utility model relates to the technical field of pipettes, in particular to a pipette tip extension head which comprises a plate clamp, the plate clamp comprises a first plate body and a second plate body which are hinged to each other, a torque spring is arranged at the hinged position of the first plate body and the second plate body and comprises two abutting ends, and the two abutting ends abut against the first plate body and the second plate body respectively. Therefore, one side of the first plate body and one side of the second plate body are opened. Arc-shaped heads are arranged on the sides, away from the abutting ends, of the first plate body and the second plate body respectively, the concave faces of the two arc-shaped heads are oppositely arranged, and blades are arranged on the concave faces of the arc-shaped heads along the arc-shaped faces. The lower portions of the arc-shaped heads are connected with a butt-joint pipe, the two arc-shaped heads are connected with the two sides of the butt-joint pipe through connecting strips respectively, the butt-joint pipe comprises a connecting part and a needle head part, the upper portion of the connecting part is open, a circle of sealing gasket is arranged on the inner wall of the connecting part, and the connecting part can sleeve the outer side of the end of the suction head. And the needle head part is of a hard tubular structure. The diaphragm bottle can directly penetrate into the diaphragm to transfer liquid, continuous use of the diaphragm bottle is not affected, and leakage of poisonous gas is avoided at the same time.

The utility model relates to the technical field of concrete mixing, and particularly relates to a mobile concrete mixer. The utility model provides a mobile concrete mixer, which comprises a bearing vehicle frame, the bearing vehicle frame comprises a supporting frame and at least one wheel frame connected with each other, an axle is fixedly installed on the wheel frame, and at least two rollers are installed on each axle; one baffle is fixedly installed at the two ends of the axle, the two rollers are rotatably installed at the two ends of the axle respectively, and the rollers are attached to the baffles; one buckle cap for fixing the rollers is detachably installed at the two ends of the axle, the buckle cap is matched with the baffles to limit the movement of the rollers along the axial direction of the axle. When the buckle cap is used to fix the rollers, the installation process is simpler and more convenient, the buckle cap is not easy to fall off from the axle, the stability is stronger, the buckle cap is more firm and more beautiful.