24results about How to "Increase traction" patented technology

The invention discloses an optical fiber secondary coating device. The optical fiber secondary coating device comprises an extrusion head, a front-section cooling water bath device, a front-section cooling water supplying device, an optical cable loose tube shrinkage compensation device, a rear-section cooling water bath device, a rear-section cooling water supplying device and an optical fiber take-up device, wherein both the front-section cooling water bath device and the rear-section cooling water bath device are contraction type water bath devices and contract or stretch synchronously. By controlling the cooling water bath devices at two ends to contract or stretch synchronously according to pulling speed, the cooling time of a loose tube is made consistent in the water baths, so that the degree of crystallinity is made consistent, and then the loose tube production requirement is met. Besides, the loose tube is further drawn through the optical cable loose tube shrinkage compensation device before complete crystallization to counteract the shrinkage percentage of the loose tube to a certain extent, so that the stability of the excess length of optical fiber in the loose tube is guaranteed and the production quality and production speed of optical fiber are improved.

A multifunctional tractor for cervical vertebra and lumbar vertebra is composed of chair, vertical column, horizontal arm for tracting cervical vertebra, a main control box for controlling chair and bed, and the reposition physiotherapeutic equipment.

In one embodiment, the present invention is a loose terrain traction assist device for wheeled vehicles, comprising a generally frusto-conical structure having a proximal portion with a diameter smaller than an overall diameter of a tire of a vehicle, a distal portion that extends outwardly from the wheel, and an outer surface defined between the proximal portion and the distal portion. The traction assist device also includes an attachment means for releasably coupling the frusto-conical structure to a wheel assembly of the vehicle, such that at least part of the frusto-conical structure is adapted to engage with terrain during operation of the vehicle in loose terrain and to not engage with terrain during operation of the vehicle on normal terrain.

The present invention relates to a vehicle recovery system (1) for a vehicle having at least one driven wheel. The vehicle recovery system (1) is operable to self-recover the vehicle from terrain having a deformable surface affording insufficient traction at the at least one driven wheel to mobilise the vehicle. A recovery controller (2) is provided to maintain at least substantially continuous rotation of said at least one driven wheel at a target recovery speed or within a target recovery speed range to increase the available traction at each driven wheel. The present invention also relates to a vehicle having a vehicle recovery system (1).

The invention discloses an optical loose pipe shrinkage compensation device for an optical fiber secondary plastic cover. The device comprises a frame, a driving mechanism, a linear speed synchronous transmission mechanism, a pressing wheel mechanism and an up-down hoisting mechanism; the pressing wheel mechanism includes at least one lower pressing wheel and at least one bottom wheel; the lower pressing wheels are as many as the bottom wheels; the lower pressing wheels and the bottom wheels are driven through the linear speed synchronous transmission mechanism, so that the linear speeds V1 of contact points of the lower pressing wheels and the bottom wheels with a loose pipe are the same; and the linear speeds V1 of the two are quicker than the main traction speed V2 of the optical cable loose pipe. As the device is provided with the lower pressing wheels and the bottom wheels with the same linear speeds, and the linear speeds are higher than the traction speed of an optical cable, the device uses a traction mode for towing the loose pipe to neutralize and counteract the shrinkage rate of the loose pipe to a certain extent,the stability of remaining length of the optical fiber in the loose pipe is guaranteed, and the production quality and the production speed of the optical cable are improved.

The invention relates the technical field of production equipment of flux-cored wires and particularly relates to a novel wire drawing machine of the flux-cored wires. The novel wire drawing machine comprises a rack, a rotary table, a guide wheel and a die box, wherein the rotary table, the guide wheel and the die box are arrayed and mounted on the rack in sequence; a transition wheel is arranged between the rotary table and the guide wheel. The transition wheel is arranged between the rotary table and the guide wheel so that a straight-line path of the flux-cored wires is changed into a curve path; not only is the traction force enhanced, but also a wire jumping phenomenon can be avoided by changing a disc winding angle; the production continuity is good, the capacity is high and the wire welding quality is guaranteed.

A device for increasing traction of a bicycle is provided. The device includes two flexible tension members, each of the flexible tension members adapted to be situated on a different side of the tire, each flexible tension member including a flexible cable with first and second ends and a turnbuckle connector adapted to connect the first end and the second end of the flexible cable. The device also includes a plurality of spaced flexible connecting members coupled between the flexible tension members at a corresponding coupling point. The flexible members and the connecting members pass through the minimum interior space, when the wheel rotates and when the caliper brakes are engaged with the opposite surfaces of the rim of the bicycle wheel, without contacting the arms of the caliper brakes. A method for providing traction to a bicycle tire is provided.

The invention discloses a skull traction device used for cervical vertebra dislocation. The skull traction device comprises a cabinet body, wherein one side of the top end of the cabinet body is rotatably provided with connecting components; the connecting components are used for detachably connecting the cabinet body to a hospital bed; the top end of the cabinet body is vertically provided with atelescopic element; the top end of the telescopic element is provided with a guide component used for guiding a traction rope; a traction element is arranged in the cabinet body; the top end of the cabinet body is provided with a through hole; and in addition, the bottom end of the traction rope penetrates through the through hole and is wound to the output end of the traction element. The skulltraction device disclosed by the invention can be flexibly suitable for the height of the hospital bed and is convenient to transport a patient along with the hospital bed, linear transition is increased for traction force, weight can be continuously increased so as to be favorable for muscle relaxation and cervical vertebra creepage and also favorable for restoration, and manpower loss is reduced.

The invention belongs to the field of powder coating preparation and particularly relates to wear-resistant glossless powder coating and a preparation method thereof. The powder coating is prepared from the following raw materials in parts by weight: 20-30 parts of epoxy resin, 35-45 parts of polyester resin, 0.5-1.5 parts of leveling agent, 1-2 parts of brightener 701, 3-6 parts of corundum powder, 12-17 parts of tea stalk powder, 4-7 parts of shell powder, 1-3 parts of polytetrafluoroethylene wax, 0.5-1.5 parts of carbon black and 4-5 parts of extinction curing agent. According to the invention, by adding the tea stalk powder and shell powder into the mixed glossless powder coating and due to the porosity of the tea stalk powder and shell powder, the gloss of the powder coating is further reduced; and meanwhile, since the tea stalk powder and shell powder form a strong adsorption field, the adhesion of the glossless powder coating is enhanced, and the glossless powder coating has excellent wear resistance and environment friendliness and is suitable for outdoor use.

The invention relates to a dual-body water conservancy power generation ship. Damming power generation is characterized in that the unit installed capacity is determined by the water flow fall. The dam-free water conservancy power generation ship is characterized in that the unit (ship) installed capacity is determined by traction positioning energy of a traction device. According to the dual-body water conservancy power generation ship, a large traction hanging pile (sunken anchor) and a shore hanging pile (shore anchor) are built at the river bottom to be combined with the power generation ship to form three-dimensional triangular traction positioning, and water flow attacks a unit paddle wheel to convert water flow power into mechanical energy for work doing power generation. In order to improve the installed capacity and effectively reduce dual-anchor loads, dual-anchor-chain hanging points are selectively arranged at the portions of dual-hull-bottom keels to form appropriate angles, so that water flow attacking is converted into upper floating force to reduce resistance. In order to keep the balance of the dual-body ship, the installing space is increased, and the ship building cost is reduced; the flat-bottom dual-body ship is selected. A control system is formed by three anchors and ship-load power so as to keep the transverse level and the longitudinal level of the dual-body ship, and the best water flow is selected through transverse movement positioning. The unit is suitable for working doing power generation in any water flow state through wheel propeller lifting operation.

The invention discloses a large-traction-force screw propulsion micro-pipeline robot based on urban construction, and particularly relates to the field of urban construction. The large-traction-forcescrew propulsion micro-pipeline robot based on urban construction comprises equipment carrying bins, a cable driving wire, propulsion structure bins, universal joint mechanisms, a detection equipmentbin and a spiral driving bin; and the ends of the equipment carrying bins and the ends of the propulsion structure bins are provided with matched threaded ends respectively to be sleeved with threadedpipe structures, the ends of the equipment carrying bins are in threaded connection with the ends of the propulsion structure bins, and the universal joint mechanisms are located at the ends of the equipment carrying bins, the ends of the propulsion structure bins and the end of the detection equipment bin. According to the scheme, the pipeline robot is of a split type assembling structure, the equipment carrying bins, the propulsion structure bins, the detection equipment bin and the spiral driving bin are connected and assembled in a threaded manner or connected through the universal jointmechanisms, and the proper length and number can be selected according to actual scene requirements; and the traction force of the pipeline robot is changed by increasing or decreasing the number of the propulsion structure bins, so that the pipeline robot is suitable for working in different environments, and operation scenes are expanded.

The present invention is an improved design of a roller used in material handling mechanisms such as roller conveyors. The roller is a cylinder having grooves and more particular spiral groove that runs continuously from one end of the roller to the other, covering the entire outer peripheral surface. The groove is formed at a helix or spiral angle.

The invention relates to a palm sleeve type forearm traction restoration belt, which mainly comprises a palm sleeve and a traction belt, and is characterized in that the traction belt consists of a belt body and a clasp at the end part; the junction between two sleeve surfaces of the palm sleeve is provided with a thumb hole; one sleeve surface is provided with a Velcro loop belt, while the other sleeve surface is provided with a Velcro hook belt; and the upper ends of the sleeve surfaces are provided with snap rings. A doctor performs traction restoration on arm fracture by utilizing waist strength to increase traction force greatly, so that the fracture restoration difficulty is reduced, doctor labor are saved and the number of the doctors required by the restoration is reduced, and the palm sleeve type forearm traction restoration belt is favorable for improving restoration success rates.

A multifunctional tractor for cervical vertebra and lumbar vertebra is composed of chair, vertical column, horizontal arm for tracting cervical vertebra, a main control box for controlling chair and bed, and the reposition physiotherapeutic equipment.

The invention discloses an insulating component for adjusting a traction force to an electric power facility. The insulating component comprises a first insulator, a second insulator and a screw rod; a sleeve is arranged in the first insulator; the inner wall of the sleeve is provided with a screw thread; one end of the screw rod passes through the first insulator, is matched with the screw thread and is screwed into the sleeve; and the other end of the screw rod is inserted into the second insulator to be fixed in the second insulator. A worker can directly control the first insulator and the second insulator through two hands so as to make the first insulator and the second insulator rotate; when the screw rod is adjusted to be screwed into the sleeve, a traction rope is tensioned, and a traction force applied by a guy to the electric power facility can be increased; when the screw rod is adjusted to be unscrewed from the sleeve, the traction rope is relaxed, and the traction force applied by the guy to the electric power facility can be decreased; and therefore, the insulating component has the advantages of high applicability, convenient and effective operation, high security and high reliability.

The invention discloses a rectangular spring forming equipment, which relates to the technical field of rectangular spring production equipment, comprising a frame body, a drive motor is installed on one side of the frame body, and a drive shaft is fixedly connected to the output end of the drive motor. The driving shaft is coaxially fixedly connected with a forming roller, the forming roller is rotatably connected in the frame body, and a spiral forming groove is opened on the outer peripheral side, and a pressing mechanism is arranged in the frame body, and the pressing mechanism includes a pressing wheel, The spiral pressure groove, the tension wheel and the transmission toothed belt, the present invention adjusts the contact pressure between the spiral pressure groove on the pressure wheel and the steel wire in the spiral forming groove on the forming roller by rotating the adjusting bolt, and drives it through the driving motor and the transmission toothed belt The pressing wheel and forming roller rotate in opposite directions synchronously, and the spiral pressing groove keeps squeezing the rectangular spring winding working end in the whole process of the spiral forming groove, which greatly improves the traction force of the steel wire raw material winding and ensures the processing quality of the rectangular spring.

Textured thumb covers for placement over a wearer's thumb while utilizing a manually actuated input device on a game controller. The textured thumb covers include a pair of mirror image cover bodies, each sized to enclose a thumb of a wearer, and an integral textured wrap disposed over each cover body. Each cover body includes a base end defined by an open mouth at which an elastic retaining ring for anchoring the cover body to the base of thumb is disposed. Each textured wrap is an assembly of plurality of interconnected elastic strands of sized to be stretched together over the cover body when the cover body is in place on a thumb. The placement of the elastic strands on the smooth cover body creates a textured surface which is suitable to increase traction on the surface of the thumb cover.

The invention relates to the technical field of unexploded ammunition destruction, in particular to a roadway type waste explosive destruction system which comprises an arch-shaped top plate and side walls, a plurality of anchor rods are arranged on the top plate, and first anchor nets are connected to the anchor rods; and second anchor nets are arranged on the side walls. An original roadway is transformed into a destruction chamber, explosives are detonated through a destruction pit, the pipe seam type anchor rods are arranged on the top plate of the roadway, the anchor rods exert radial pressure on the hole wall within the full-length range to provide friction force so as to prevent surrounding rock from sliding down, and high shear resistance and tensile strength are achieved; and besides, the anchor nets are arranged at the bottoms of the anchor rods, the top plate is lifted through the densely-distributed anchor nets, concrete mortar is sprayed to the outer layer, a smooth top face structure is formed, and when affected by explosive shock waves, the overall strength is improved, expansion and extension of cracks are avoided, the stability of the chamber structure is guaranteed, and the requirement for destroying unexploded explosives is met.

The invention discloses rectangular spring forming equipment, and relates to the technical field of rectangular spring production equipment. The rectangular spring forming equipment comprises a frame body, a driving motor is installed on one side of the frame body, the output end of the driving motor is coaxially and fixedly connected with a driving shaft, the driving shaft is coaxially and fixedly connected with a forming roller, the forming roller is rotationally connected in the frame body, a spiral forming groove is formed in the peripheral side, a pressing mechanism is arranged in the frame body, and the pressing mechanism comprises a pressing wheel, a spiral pressing groove, a tensioning wheel and a transmission toothed belt. According to the rectangular spring forming equipment, the contact pressure of the spiral pressing groove on the pressing wheel and a steel wire in the spiral forming groove on the forming roller is adjusted by rotating an adjusting bolt, the driving motor and the transmission toothed belt drive the pressing wheel and the forming roller to synchronously and reversely rotate, the spiral pressing groove always keeps an extrusion state on the winding working end of a rectangular spring in the whole process of the spiral forming groove, the winding traction force of a steel wire raw material is greatly improved, and the machining quality of the rectangular spring is guaranteed.

An athletic shoe including a moveably attached cleat is intended to displace relative to the sole on the shoe in certain situations. This allows the cleat to more easily disengage the turf than a convention fixed cleat. The moveably attached cleat allows the shoe to disengage from the turf when the wearer is subjected to side impact forces, thus reducing the likelihood of traumatic knee injuries for the wearer. However, when the wearer is running forward, there is a reaction force on the cleat from the turf, acting in the forward direction which does not cause the cleat to displace to the retracted position and it can remain in the extended position.

The invention discloses a machine room-free cargo ladder. The machine room-free cargo ladder comprises a counterweight and a lift car which are arranged in a hoistway, a traction machine and a traction wheel, wherein the counterweight is connected with the traction wheel and the lift car through the steel wire rope, the ladder is characterized in that a left counterweight wheel and a right counterweight wheel are arranged on the top of the counterweight, two groups of left car bottom wheels and two groups of right car bottom wheels are arranged at the bottom of the car, the traction wheel is arranged right above the left-side counterweight wheel and the right-side counterweight wheel, the top of the well channel is provided with a guide wheel and two groups of transmission wheels with the same diameter, the top of one end of the steel wire rope is connected with the top of the well, the other end sequentially bypasses the left-side counter-weight wheel, the traction wheel, the right-side counter-weight wheel, a guide wheel, a group of left car bottom wheels, a group of right car bottom wheels, two sets of transmission wheels, another group of right car bottom wheels, and the other group of left car bottom wheels are connected with the top of the well. The traction wheel disclosed has the advantages that the traction force of the traction wheel is improved, and the cost is reduced.

The invention relates to a warping plate drawing pillow. A warping plate tractor is a hard rectangular body. A semicircular protruding resistance arm is arranged on the long side on one side on the front face, a plane power arm with a plurality of ventilation holes is arranged on the other long side on the other side on the front face, and one or two symmetrical hollow protruding pivots are arranged on the back face between the semicircular protruding resistance arm and the plane power arm. A magnetic piece covers the plane power arm on the front face of the warping plate tractor, a medicine bag covers the magnetic piece or the integral face of the warping plate tractor, a layer of pillow case is sleeved outside the whole body, and at least one layer of elastic fabric is arranged between the pillow case and the medicine bag. A drawing method includes utilizing self head weight as power according to a lever principle of the warping plate tractor and acting on cervical vertebra through the plane power arm with a semi-circular structure and according with physiological curvature to form upward lifting force higher than self gravity of the head and drawing force towards the head on the cervical vertebra to draw the cervical vertebra accordingly. The warping plate drawing pillow has the advantages of being reasonable in structure, convenient to use, overlapped in function, safe and reliable and the like.