38results about How to "Prevent bobbing" patented technology

The invention relates to a flexible water-absorbing scraper of an intelligent cleaning device. The flexible water-absorbing scraper comprises a front adhesive strip, a rear adhesive strip, a water-absorbing scraper body and a water-absorbing pipe, wherein the front adhesive strip and the rear adhesive strip are correspondingly arranged on the front side and the rear side of the water-absorbing scraper body respectively, the water-absorbing scraper body is arranged below the rear side of a chassis of the intelligent cleaning device and is connected with the chassis through a floating structure,the bottom of the water-absorbing scraper body is open, multiple universal wheels are arranged at the bottom of the water-absorbing scraper body, the water-absorbing scraper body can perform verticaltelescopic motion through the floating structure, the lower end of the water-absorbing pipe extends into the water-absorbing scraper body, and the upper end of the water-absorbing pipe is communicated with a water inlet of an external water-absorbing motor. The flexible water-absorbing scraper can adjust the height and posture of the water-absorbing scraper through the arranged floating structurein a self-adaptive mode when passing through an uneven ground, it can be ensured that the water-absorbing scraper can well fit the ground on the different road surfaces, abrasion of the front adhesive strip and the rear adhesive strip can be also effectively reduced, and the maintenance cost of the intelligent cleaning device is reduced.

The invention discloses a sliding type monorail crane turnout system for mines, belonging to the technical field of mine equipment. The sliding type monorail crane turnout system comprises a frame assembly, a slide track assembly and a hydraulic cylinder, wherein the slide track assembly is connected with the frame assembly through a wheel set; the wheel set can slide inside the frame assembly freely; a hydraulic cylinder flange is fixedly connected with a hydraulic cylinder connecting flange in the frame assembly; and a piston rod is connected with the slide track assembly through a hinge pin. The sliding type monorail crane turnout system is stable in structure and convenient to operate, potential safety hazards of a monorail crane locomotive are avoided, and the abrasion to wheels is reduced; and meanwhile the remote control is realized, and requirements of mines are met.

The invention discloses an intelligent vehicle-mounted camera possessing panoramic and close-up functions. A front cover is provided with a high-definition integrated movement and an infrared laser lamp. The front cover and a rear cover are assembled together, are fixed to an inner support and can rotate 20 degree to 90 degree about a shaft where the inner support is located. A shell is fixed to the inner support. The inner support is assembled to a pedestal and can rotate 360 degree about the pedestal. Four wide-angle lenses are installed in the pedestal. In the invention, through using images collected by the high-definition integrated movement on an upper portion, a close-up function is realized; through splicing the images collected by the four wide-angle lenses in the pedestal, a panoramic function is realized; and the camera possesses advantages that the structure is compact; the camera has all the functions; the camera is easy to carry; and operation is simple.

The invention discloses an anti-typhoon fixing device for a helicopter. The device is characterized by comprising a device for fixing rotation of the helicopter and a chain mechanism for stabilizing the body of the helicopter, wherein the fixing device is arranged between the end part of a main rotor of the helicopter and a landing gear; one end of the chain mechanism is arranged on the body of the helicopter, and the other end of the chain mechanism is fixed on the ground; and the root part of the main rotor of the helicopter is also provided with a spacing device for preventing each blade of the main rotor of the helicopter from independent rotation. The device has the effect of preventing the main rotor of the helicopter from swinging up and down, and also has the effect of stably landing the helicopter on the ground; and the possibility of rolling over the body of the helicopter is effectively prevented.

The invention relates to an automatic telescopic pedal assembly and a vehicle using the same. The automatic telescopic pedal assembly comprises a pedal, a transmission shaft arranged under the pedal, a gear fixed to the transmission shaft, and a rack which is fixed to the bottom face of the pedal and meshes with the gear. The transmission shaft is further provided with at least one rolling body support part. The lower surface of the pedal is provided with a support face in rolling fit with the rolling body support part. During usage, the rolling body support part achieves a support function on the pedal, so that damage caused by too large loads of the gear and the rack is avoided, meanwhile, the abrasion speed of the gear and the rack is reduced, and the service life of the automatic telescopic pedal assembly is prolonged.

The invention discloses a strip-shaped electrical material conductivity measuring device and system suitable for different temperatures. The measuring device comprises a current applying mechanism, asample pressing mechanism, a measuring platform, a thermocouple and a voltage measuring mechanism. The system comprises the measuring device, a digital signal processing unit, a temperature control unit and a data acquisition unit, wherein the digital signal processing unit is respectively connected with the temperature control unit and the data acquisition unit, the measuring device is arranged in the temperature control unit and is used for controlling the temperature of the sample wafer, and a thermocouple, a current lead and a voltage lead of the measuring device are respectively connectedwith the data acquisition unit. According to the system, the type of the measured material is further expanded, and the temperature working condition is integrated into one measurement system, so conductivity measurement of various sizes and different types of strip-shaped electrical materials under the conventional condition and the condition of applying different temperatures can be realized, the measurement result is accurate, and the method has guiding significance for subsequent processes.

The invention provides an anti-hit and anti-deformation tail plate of a cargo compartment of a dump truck and the dump truck provided with the tail plate. The dump truck comprises a truck body and the cargo compartment which comprises a front plate (1), left and right side plates (2), a base plate (3), the tail plate (4), a tail plate large locking hook, a manual hook device (6) and a rotary hook base (7). A series of measures of reinforcement, leaking and falling prevention, material accumulation prevention and safe locking are taken for the tail plate. By adoption of the anti-hit and anti-deformation tail plate of the cargo compartment of the dump truck and the dump truck provided with the tail plate, compared with the prior art, the cargo compartment has the advantages of being resistant to hit, expansion, impact, squeezing and deformation, free of material accumulation and long in service life and has the characteristics that boosting by other machines is facilitated when the dump truck is trapped or resisted and small-particle-size materials in the cargo compartment can be prevented from leaking and falling during transportation.

The invention provides a driving device of a steel ladle sliding nozzle mechanism. According to the driving device, vertical swinging of a connecting rod is avoided. The driving device comprises a support fixed to a steel ladle. The support is of a U-shaped structure. A plurality of rotating shafts are arranged at the bottom of the support. A shaft sleeve is arranged between the rotating shafts and the support. A chain wheel is hinged to the middle of the support through a pin shaft. An air cylinder is connected to the chain wheel and rotatably installed on the steel ladle. A chain groove is formed above the rotating shafts. A chain is arranged at the lower portion of the chain groove. A plurality of roller shafts are arranged at the upper portion of the chain groove. Rollers are arranged on the roller shafts. The chain wheel penetrates through the rollers to be matched with the chain. A connecting rod is fixed to one end of the chain groove. The free end of the connecting rod is connected with the sliding nozzle mechanism.

The invention relates to a horizontal band-saw cutter and is characterized in that a cutting arrangement is inlaid between a front base and a rear base. Two saw wheels which are arranged in the same horizontal position are arranged inside the cutting arrangement. The two saw wheels are connected together via a band-saw blade. A front bench base and a rear bench base are respectively arranged on the front base and the rear base which are mounted on both sides of the cutting arrangement. A sliding before-feeding bench and a sliding after-feeding bench are respectively arranged on the front bench base and the rear bench base. A working face with saw blades and the after-feeding bench are kept to the same level. A column used for the lifting of a transfer arrangement is arranged on an undercarriage, and the transfer arrangement is arranged on the column used for the lifting of the transfer arrangement. The cutting device which is inlaid between a front bench and a rear bench is capable ofbeing regulated and generating the best machining precision and speed according to the different widthes of saw blades and the rigidities of the machining objects, guaranteeing that the sawing cross section is flat and smooth, largely promoting the safety of using and the deep-sawing quality of the product, reducing the spillage of materials and requirements of process technology and labor of professional personnel. Further, the invention is convenient to debug, and the manufacture cost is low.

The invention discloses a sand blasting device for building decoration. The sand blasting device comprises a moving plate, four supporting stand columns are fixedly connected to the middle of the upper end of the moving plate and are distributed in a square shape, a supporting table plate is jointly and fixedly connected to the upper ends of the four supporting stand columns, a horizontal steering mechanism is movably connected to the middle of the upper end of the supporting table plate in a penetrating mode, the lower end of the horizontal steering mechanism penetrates through the lower end surface of the supporting table plate and is fixedly connected with the upper end of the moving plate, a mounting plate is fixedly connected to the middle of the upper end of the horizontal steering mechanism, the left part of the upper end of the horizontal steering mechanism is fixedly connected with an auxiliary mechanism, the auxiliary mechanism is of an L-shaped structure, and the left part of the lower end of the auxiliary mechanism is fixedly connected with the left part of the upper end of the moving plate. According to the sand blasting device for building decoration, physical output of operators is small, use and operation are more convenient, the sand blasting effect is good, moving and fixing of the whole device are facilitated, transportation is facilitated, and transferring is more convenient.

A wind-resistant flexible photovoltaic support includes a column, a longitudinal beam, a column cable, a cross stay cable and a photovoltaic module, The column cable is connected with a column, columncables are used to secure the columns, The longitudinal beam comprises an upper longitudinal beam and a lower longitudinal beam, and the transverse stay cable comprises an upper transverse stay cableand a lower transverse stay cable; the upper longitudinal beam and the lower longitudinal beam are both connected to the upright column; the upper longitudinal beam is connected with a plurality of upper transverse stay cables arranged in parallel; the lower longitudinal beam is connected with a plurality of lower transverse stay cables arranged in parallel; and the photovoltaic module is connected with the upper transverse stay cable and the lower transverse stay cables. The flexible photovoltaic bracket system of the invention can improve the stability of the installation of the large-spanflexible photovoltaic bracket, and realize stable flexible photovoltaic bracket system under the condition of setting up a minimum number of upright columns. The truss structure ensures that the longitudinal beam system can stably bear the cable pretension, and at the same time, the steel frame structure is reused as much as possible to reduce the number of steel parts, and the wind-proof system exerts additional pretension force pointing to the ground on the assembly mounting plane to prevent the photovoltaic module from swinging up and down greatly due to the strong wind.

The invention relates to a traction device, and provides a vehicle rear traction connection device in order to solve the technical problem of existing connection devices during use. The vehicle rear traction connection device comprises a connection ball, and the connection ball is fixed to the front end of a balance arm; the device is characterized by further comprising left and right wall plates,a rotating rod and a fixed rod; a clamping groove is formed between the left and right wall plates, the rotating rod is located in the clamping groove, one end of the fixed rod stretches into the clamping groove and is fixedly connected with the left and right wall plates, and a first hinge shaft penetrates through the tail end of the rotating rod; the tail end of the balance arm is located in the clamping groove, a pin shaft penetrates through the portion, in the clamping groove, of an arm body of the balance arm, and the balance arm can rotate freely around the pin shaft; a second hinge shaft penetrates through the tail end of the balance arm and a rod body of the front end of the rotating rod, arc sliding grooves are formed in the left and right wall plates respectively, and the two ends of the second hinge shaft are located in the arc sliding grooves of the left and right wall plates respectively. The connection device is reasonable in structure, has an obvious shock absorption effect, and can be widely applied to connection in traction operation.

The invention relates to edge grinding equipment, in particular to edge grinding equipment for metal product production. Therefore, the technical problem of the invention is that the metal product edge grinding efficiency is high and the edge grinding equipment for the production of the metal product is high in safety during grinding is provided. According to the technical scheme, the edge grinding equipment for producing the metal products comprises a bottom plate and a first motor, a first screw rod, a first nut, a first sliding rail, a first sliding block and the like; a first motor is connected to the middle of the top of the bottom plate, the output shaft on the upper side of the first motor is connected with a first screw rod, a first nut is screwed on the first screw rod, the left side and the right side of the top of the bottom plate are all connected with the first sliding rails, and the first sliding rails are all provided with a first sliding block in a sliding mode. According to edge grinding equipment, the beneficial effects of high edge grinding efficiency of metal products and high safety during edge grinding are achieved, the first trapezoid grinding stone and the second trapezoid grinding stone are arranged between the first trapezoid grinding stone and the second trapezoid grinding stone, so that the equipment can be used for grinding all the parts of the metal product at the same time.

The invention relates to a fixer, in particular to a water cup fixer. The water cup fixer cannot increase the loads on a human body and cannot restrain people from controlling a motorcycle in the riding process. By means of the technical scheme, the water cup fixer comprises a placement bucket, a fixing device, first guide sleeves, first guide rods, a first rack, clamping blocks, a first gear, a second rack, a third rack, a second gear and the like. The fixing device is arranged in the middle of the left side of the placement bucket. A slot is formed in the lower portion in the placement bucket and communicates with the interior of the placement bucket. The left side and the right side of the rear wall of the slot are provided with the first guide sleeves correspondingly. The first guide rods are slidingly arranged in the first guide sleeves. By hanging the placement bucket on a handlebar of the motorcycle through the fixing device, people can conveniently place a water cup in the riding process; and by swinging a thumbing clamping rod up and down to adjust the distance between the left and right square clamping blocks, the water cup can be fixed by the left and right square clamping blocks.

The invention discloses a dragon boat paddle strength training device, and belongs to the technical field of sports equipment. The dragon boat paddle strength training device comprises a ship body and two training devices, wherein annular first sliding grooves are formed in the two sides of the boat body, the two training devices are arranged on the two sides of the ship body respectively, each training device comprises a paddle, a first sliding block and a first spring, the first sliding block is slidably connected with the first sliding groove, the first sliding block is rotationally connected with the middle of the paddle, the paddle is connected with one end of the first spring, and the other end of the first spring is connected to the side wall in the bow direction. According to the device, a trainer can quickly form muscle memory of paddling actions, the muscle strength of the trainer is improved, when multiple persons paddling, the actions are uniform, the strength is intensively exploded, and the advancing speed of the dragon boat is improved.

The invention discloses financial equipment having function of aligning a card reader with a card insertion hole automatically. The financial equipment comprises a lower cover plate, a rear end, a mounting base, the card reader, two side lug guide pillars and side guide plates, wherein the mounting base is hinged to the lower cover plate, the card reader is fixedly arranged on the mounting base, the two side lug guide pillars are arranged at the two sides of the mounting base respectively, the side guide plates are vertically and fixedly arranged below the card insertion hole of a top panel, side guide grooves matched with the side guide pillars are formed in the side guide plates, each side guide groove is in a V shape, and the front end of each side guide groove can locate the corresponding side guide pillar in a clamping and embedding mode. According to the financial equipment, the floating type design is adopted for the mounting base, locking is conducted through the V-shaped guide grooves in the two sides, a large opening is formed in the rear portion of the equipment, great guiding adaptability is achieved for the floating type mounting base, a structure the same as a corresponding side guide shaft in size is adopted for the front portion of each V-shaped guide groove, a good clamping-and-embedding location effect is achieved, the installed mounting base can be effectively prevented from bobbing up and down, the assembling effect is improved, and meanwhile the using effect is guaranteed.

The invention relates to a hanging support for a flow velocity monitor. As counter-balanced carriages and bearing supports which are arranged in a symmetrical manner are arranged on the two sides of avehicle traveling fixing support, the weights of the counter-balanced carriages are adjustable, the condition that when water-related affair monitoring is carried out, up-and-down swing caused by unbalance of the flow velocity monitor is caused is avoided, it is guaranteed that an included angle with the fixed angle is formed between the flow velocity monitor and a river plane is guaranteed all the time, and the data accuracy of flow velocity monitoring data is guaranteed.

The invention discloses a double-traction device of an articulated tractor and relates to the technical field of farm machinery. The double-traction device comprises a front frame, a rear frame and traction rods. A traction seat is mounted on the front frame. Two traction rods arranged up and down are hinged to the traction seat by means of traction pins. At least one connecting plate is mounted on the rear frame, and the two traction rods run through the connecting plate. A limiting block pin is mounted at the rear end of each traction rod. Compared with the prior art, the double-traction device of an articulated tractor has the following advantages that up-and-down sway generated by the traction connection part on load is greatly reduced; the connection parts at two ends of the traction rods are avoided from breakage and deformation, and the stability of connection between the front frame and the rear frame is improved; and in case of emergency braking or turning, independent rollover of the front part or independent rollover of the rear part of the tractor is avoided with high safety.

The invention provides a building steel structure connection device and a connection structure, which belong to the field of construction engineering. The building steel structure connecting device includes a center sleeve, a first clip body, a second clip body, a driving device and a clamping device. The first clamping body is fixed on the outer side of the central sleeve, and the first clamping body includes a base, a first clamping part and a second clamping part, and both the first clamping part and the second clamping part are connected to the base. The second clamping body is movably arranged on the outside of the center sleeve, and the second clamping body is provided with an extruding part. The driving device can drive the second clamping body to move towards the direction close to the first clamping body, so that the extrusion part presses the first clamping part and the second clamping part, so that the first clamping part and the second clamping part are mutually near. The clamping device includes an executive part, which is movably connected with the central sleeve, and the executive part has a clamping end, and the distance between the clamping end and the base is adjustable. The connection device can limit the swing of the beam relative to the column in two directions, and the beam and the column have good firmness after being connected through the connection device.

The invention discloses a lock with a power connecting function. The lock is composed of a male plug assembly and a female plug assembly, the male plug assembly comprises a male plug rear shell, a male plug front shell, a gear driving mechanism, a middle gear, two male plug bolts, two male plug bolt electrode connectors, two reset springs and a male plug signal electrode connector, and the femaleplug assembly comprises a female plug shell and two female plug electrode connectors; the male plug bolts comprise of sliding parts, transmission parts, locking parts, and electric wire connecting contact points correspondingly; and the two bolts are arranged in the inner space of the male plug assembly, the electric wire connecting contact points and the locking parts are exposed out of the innerspace of the male plug assembly, the gear driving mechanism is arranged in the middle of the male plug rear shell, the middle gear is arranged on the gear driving mechanism, the middle gear is meshedwith the transmission parts, and the male plug bolt electrode connectors are arranged on the male plug bolts correspondingly. Compared with existing similar locks, the lock has the advantages of being good in synchronism, stable in power connection, not easy to wear, long in service life, small in size, strong in applicability and the like.

The invention relates to edge grinding equipment, in particular to edge grinding equipment for metal product production. Therefore, the technical problem of the invention is that the metal product edge grinding efficiency is high and the edge grinding equipment for the production of the metal product is high in safety during grinding is provided. According to the technical scheme, the edge grinding equipment for producing the metal products comprises a bottom plate and a first motor, a first screw rod, a first nut, a first sliding rail, a first sliding block and the like; a first motor is connected to the middle of the top of the bottom plate, the output shaft on the upper side of the first motor is connected with a first screw rod, a first nut is screwed on the first screw rod, the left side and the right side of the top of the bottom plate are all connected with the first sliding rails, and the first sliding rails are all provided with a first sliding block in a sliding mode. According to edge grinding equipment, the beneficial effects of high edge grinding efficiency of metal products and high safety during edge grinding are achieved, the first trapezoid grinding stone and the second trapezoid grinding stone are arranged between the first trapezoid grinding stone and the second trapezoid grinding stone, so that the equipment can be used for grinding all the parts of the metal product at the same time.

The invention relates to a holder, in particular to a water cup holder. The technical problem of the present invention is to provide a water cup holder that does not add load to people's bodies and does not hinder people's handling of motorcycles during riding. The technical embodiment of the present invention is: a water cup holder, including a placing drum, a fixing device, a first guide sleeve, a first guide rod, a first rack, a clamping block, a first gear, a second rack, The third rack, the second gear, etc.; there is a fixing device in the middle of the left side of the barrel, and a slot hole is opened in the lower part of the barrel. The slot hole communicates with the inside of the barrel. The first guide sleeve is provided with a first guide rod slidingly inside the first guide sleeve. The invention hangs the placing drum on the handlebar of the motorcycle through the fixing device, so that people can place the water cup conveniently during riding, and adjust the distance between the left and right clamping blocks by moving the lever up and down, so that the left and right sides The clamp block fixes the water cup.

The invention relates to the technical field of aluminum alloy profiles, and discloses a cutting and fixing device for aluminum alloy profiles, including a conveying part, a boosting part, a cutting part, a fixing part, a cooling part and a bearing part, and the conveying part is arranged between the boosting part and the supporting part. In the middle of the cutting part, the boosting part is arranged on one side of the conveying part, the cutting part is arranged on the other side of the conveying part, and the cutting part and the boosting part correspond to each other, and the fixing part is arranged on the cutting part. The top of the component, the cooling component is set on the top of the cutting component, and the cooling component is located on the side of the fixed component, and the bearing component is set on the side of the cutting component, which can be used according to the needs of the operator for the aluminum alloy profile The cutting angle can be adjusted to make the operation easier and more convenient.

The invention discloses a sliding type monorail crane turnout system for mines, belonging to the technical field of mine equipment. The sliding type monorail crane turnout system comprises a frame assembly, a slide track assembly and a hydraulic cylinder, wherein the slide track assembly is connected with the frame assembly through a wheel set; the wheel set can slide inside the frame assembly freely; a hydraulic cylinder flange is fixedly connected with a hydraulic cylinder connecting flange in the frame assembly; and a piston rod is connected with the slide track assembly through a hinge pin. The sliding type monorail crane turnout system is stable in structure and convenient to operate, potential safety hazards of a monorail crane locomotive are avoided, and the abrasion to wheels is reduced; and meanwhile the remote control is realized, and requirements of mines are met.

The invention discloses a machine integrating pesticide spraying and rice seedling transplanting. The machine comprises a rice seedling transplanting device and a pesticide spraying device, the pesticide spraying device is arranged on a rack of the rice seedling transplanting device, the pesticide spraying device comprises pesticide barrels, booster pumps and spray nozzles, a cab is arranged in the middle of the rack, the pesticide barrels are placed at the two sides behind the cab respectively, a support is arranged at the front end of the rack, the support is divided into three segments, one ends of a first segment and a third segment are each provided with a hook, the six or more booster pumps are evenly arranged on the support, one end of each booster pump is connected with the corresponding pesticide barrel through a water pipe, and the other end of each booster pump is connected with the corresponding spray nozzles through a water pipe. According to the machine, the original primary structure of a rice transplanter is utilized, and the pesticide spraying device is added, so that the effect that the single machine is used for double purposes is achieved; the functions of the multiple pumps are utilized, the scientization of pesticide spraying is achieved, repeated pesticide spraying is avoided, missed pesticide spraying is prevented, and the prevention and treatment effect is improved; the problem that the rice transplanter is low in use efficiency is effectively solved, and meanwhile the machinery cost for pesticide spraying and prevention and treatment is saved; the labor efficiency is greatly improved, and the main point is that the pesticide spraying efficiency is improved.

The invention discloses a folder of an electric scooter, which comprises an upper bowl and a lower bowl which are connected in a rotating mode, the upper bowl is used for being connected with a vertical rod of the electric scooter, the lower bowl is used for being connected with a head pipe of the electric scooter, a limiting mechanism is arranged between the upper bowl and the lower bowl, and thelimiting mechanism comprises a folding handle. One end of the folding handle is rotatably connected with the lower bowl, a first limiting groove is formed in the folding handle, a first limiting partcapable of being matched with the first limiting groove is arranged on the upper bowl, and the first limiting part and the first limiting groove are used for limiting the vertical rod to swing up anddown. According to the folder provided by the embodiment of the invention, when the electric scooter is folded, the first limiting groove in the folding handle gradually gets close to the first limiting part until the electric scooter is completely folded, and the first limiting part and the first limiting groove form clamping fit, so that the folded vertical rod is prevented from swinging up anddown.

The invention relates to a flexible squeegee for an intelligent cleaning device, comprising a front rubber strip, a rear rubber strip, a squeegee body and a water suction pipe, the front rubber strip and the rear rubber strip are respectively arranged on the front and rear sides of the squeegee body, and the squeegee body It is installed under the rear side of the chassis of the intelligent cleaning device, and is connected with the chassis through a floating structure. The bottom of the squeegee body is opened. The bottom of the squeegee body is equipped with multiple universal wheels, and the squeegee body can move up and down through the floating structure. , the lower end of the water suction pipe extends into the body of the squeegee, and the upper end communicates with the water inlet of the external water suction motor. The flexible squeegee of the present invention can adjust the height and posture of the squeegee adaptively when the intelligent cleaning device passes through uneven ground by setting a floating structure, which can not only ensure that the squeegee can be well attached to different road surfaces It can also effectively reduce the wear of the front rubber strip and the rear rubber strip, and reduce the maintenance cost of the intelligent cleaning device.

The invention relates to an automatic telescopic pedal assembly and a vehicle using the same. The automatic telescopic pedal assembly comprises a pedal, a transmission shaft arranged under the pedal, a gear fixed to the transmission shaft, and a rack which is fixed to the bottom face of the pedal and meshes with the gear. The transmission shaft is further provided with at least one rolling body support part. The lower surface of the pedal is provided with a support face in rolling fit with the rolling body support part. During usage, the rolling body support part achieves a support function on the pedal, so that damage caused by too large loads of the gear and the rack is avoided, meanwhile, the abrasion speed of the gear and the rack is reduced, and the service life of the automatic telescopic pedal assembly is prolonged.

The invention relates to a warm-keeping temperature control and light guiding system for assisting rat tail vein injection. The warm-keeping temperature control and light guiding system comprises a warm-keeping temperature control device and a light guiding system device, wherein the warm-keeping temperature control device comprises a light source, a sensor, an infrared ray thermal receiving probe, a photoelectric converter and a negative feedback circuit; the light guiding system device comprises a light guiding pipe shell, a power supply, a red light, a yellow light and a green light; the power supply is arranged inside the light guiding pipe shell; and an arc-shaped clamping slot is formed in the light guiding pipe shell, and the red light, the yellow light and the green light are arranged on the side surface of the arc-shaped clamping slot. The warm-keeping temperature control and light guiding system for assisting the rat tail vein injection has the advantages that the system is designed for solving the problems in the prior art of rat tail venepuncture, the equipment realizes controllable and adjustable heating and warming (the optimum temperature is 35 DEG C) on a rat tail, so that a tail vein is enlarged; the light guiding system can definitely display a tail vein travel path, tail vein display rate and resolution ratio are improved, and puncture is conveniently guided; and the equipment also can be applied to a rat tail venepuncture fixation frame and is used by coordinating related equipment.