72 results about "Bamboo shoot" patented technology

The utility model relates to the technical field of screening devices, and discloses a bamboo shoot raw material grading and screening device convenient to adjust, which comprises a fixed table, an adjusting frame is fixedly arranged at the top of the fixed table, the left end of the adjusting frame is low, the right end of the adjusting frame is high, and the adjusting frame is downwards inclined by 30 degrees, and a supporting frame is fixedly arranged at the right end of the fixed table. A discharging bin is fixedly installed on the top of the supporting frame, an output port of the discharging bin is aligned to the right end of an adjusting frame, and three sets of adjusting plates are arranged on the adjusting frame. Bamboo shoots are poured into the discharging bin, then the vibration motor is started to drive the motor guide plate to enable the device to vibrate, then the bamboo shoots slide to the position between the adjusting plates from the bottom of the discharging bin, the bamboo shoots slide down from right to left on the adjusting frame along with continuous vibration, and when the two sides of the bamboo shoots cannot be clamped on the adjusting plates, the bamboo shoots directly fall into the receiving box below. Therefore, the automatic screening effect is achieved, and a large amount of manpower is not needed for selection.

This utility model discloses a seasoning ingredient processing device for bamboo shoot canning, including a seasoning tank and a spice cylinder. By employing a spice cylinder and a liquid supply pipe, this utility model allows spices to be added to the spice cylinder during bamboo shoot canning seasoning production, while broth is added through the inlet. During subsequent processing, a drive shaft rotates the spice cylinder continuously within the broth, increasing the overall contact area and allowing for better extraction of the active ingredients from the spices. Simultaneously, the broth continuously discharged through the liquid supply pipe processes the spices in the center of the spice cylinder, further increasing the contact area between the liquid and the spice mixture and improving the overall solid-liquid contact effect. This allows spices in different locations to infuse their active ingredients into the broth in different locations, thereby enhancing the overall seasoning effect and facilitating better use. It offers advantages such as good seasoning effect, sufficient material contact, and multi-directional contact.

The invention discloses a small bamboo shoot hob block processing device which comprises a base frame, a power system is installed below the base frame, and the power system is composed of a main air cylinder, an auxiliary air cylinder, a driving motor and a rotating motor and mainly controls automatic feeding and cutting of materials. The main air cylinder is connected with the telescopic column, and the detachable blade is connected to the telescopic column and can be adjusted to be at different angles. And the driving motor is connected with the roller to control the rotating angle of the small bamboo shoots so as to facilitate daily use. According to the small bamboo shoot hobbing cutter block processing equipment, bamboo shoots can be continuously cut into equal hobbing cutter blocks through electromechanical transmission, the labor intensity and the labor cost are reduced, and the working efficiency is greatly improved.

The utility model discloses a bamboo shoot bubbling bath boiling device which comprises a bath boiling box, a driving motor is fixedly installed on one side of the top face of the bath boiling box, the output end of the driving motor drives a spiral blade installed in the bath boiling box to rotate through a synchronous belt wheel set, and through holes and installation cavities are formed in the bath boiling box at intervals. A bamboo shoot collecting plate is arranged below the through hole, a blow-off pipe is fixedly mounted on the bottom surface of the bamboo shoot collecting plate, and a bubbling pipe is mounted in the mounting cavity. According to the utility model, the helical blade is arranged in the bath boiling box, under the driving of the driving motor and the synchronous belt wheel group, the helical blade conveys bamboo shoots and moves from the bamboo shoot inlet to the bamboo shoot outlet while the impurities are screened out through the through holes, and in the conveying process, the impurities on the surfaces of the bamboo shoots, such as chippings and soil, are removed through the through holes. The bamboo shoots can fall to the bottom of the bath boiling box through the through holes and then are discharged through the blow-off pipe, efficient impurity screening in the material conveying process is achieved, and the cleanliness of the bamboo shoots is guaranteed.

The utility model relates to the technical field of bamboo shoot processing, in particular to a cooling device for bamboo shoot processing, which is provided with a conveying mode that a conveying belt drives a push plate, so that each group of bamboo shoots can roll in a cooling chamber to better ensure cooling contact and improve practicability. Comprising a base, shaft brackets, a conveying motor, roller shafts, a belt roller, a connecting belt, a push plate, a supporting plate connecting frame, a supporting plate and a cooling chamber, the front side and the rear side of the top end of the base are connected with the bottom ends of the pair of shaft brackets correspondingly, the upper side of the interior of each shaft bracket is rotationally provided with a set of roller shafts correspondingly, and the outer walls of the roller shafts are connected with the inner wall of the belt roller; the two ends of the outer sides of the two sets of belt rollers are each sleeved with a set of connecting belts in a tensioning mode, the inner sides of the two sets of connecting belts are evenly connected with a plurality of sets of push plates, the outer side of the middle of the top end of the base is connected with the bottom side of a cooling chamber, the cooling chamber covers the upper middle side of the outer portion of the supporting plate, and a cooling mechanism is arranged on the cooling chamber.

1. The name of the design product: packing bag (hand peeling bamboo shoot tip). 2. The use of the design product: for packing. 3. The design points of the design product: the combination of shape, pattern and color. 4. The picture or photo that best shows the design points: front view. 5. The design claimed contains color. 6. The design product is a thin product, and the left view, right view, top view and bottom view are omitted.

The invention belongs to the technical field of feed utilization of bamboo shoot processing byproducts, and particularly relates to a preparation technology of pet cat wet food added with bamboo shoot processing byproducts. In the processing process of bamboo shoots, a large number of processing wastes such as bamboo shoot shells and bamboo shoot heads are generated and occupy about 60% of bamboo shoot bodies. Actually, the bamboo shoot processing waste contains various nutritional ingredients and can be reused as animal feed, so that the waste can be effectively reduced. The bamboo shoot processing waste is added into the wet food for the pet cats to replace part of animal source components, so that the water-holding capacity of the wet food can be improved, the texture of the wet food for the cats can be improved, and meanwhile, the functionality of the wet food for the pet cats is optimized in the aspects of promoting intestinal health of the cats, improving the palatability of the wet food, balancing nutrition and the like.

The utility model relates to the technical field of bamboo shoot heating, acid discharging and salt removing, and discloses a bamboo shoot processing heating, acid discharging and salt removing device which comprises a supporting seat, a heating cylinder and a clamping sleeve, a bearing frame is movably provided with a storage net cylinder, and the clamping sleeve is installed outside the heating cylinder in a sleeved mode. A steam generator is arranged in the jacket, a plurality of groups of air inlet pipes are arranged on the steam generator, a conveying pipe is fixedly arranged between the steam generator and the jacket, and a perforated plate is embedded in the inner wall of the heating cylinder, so that steam generated by the steam generator is conveyed into the jacket through the conveying pipe, and the steam is uniformly sprayed into the heating cylinder from a plurality of directions through the plurality of groups of air inlet pipes; meanwhile, a plurality of small holes in a porous plate are utilized, so that the steam can be sprayed out more dispersedly, the storage net cylinder can stably rotate along the inner wall of the bearing frame, then the bamboo shoot slices accumulated in the storage net cylinder are driven to turn over, the steam is promoted to uniformly flow among the bamboo shoot slices, and the heating, acid discharging and salt removing effects are improved.

The invention discloses a bamboo shoot processing residue fertilizer making device, which comprises a processing cylinder, the processing cylinder has a cylindrical structure, and a feeding frame arranged at the top of the processing cylinder, the feeding frame is communicated with the processing cylinder, the bottom of the processing cylinder is communicated with a fermentation cylinder, the bottom of the fermentation cylinder is fixedly connected with a support frame, and the support frame is fixedly connected with the processing cylinder. A base is fixedly connected to the end, away from the fermentation cylinder, of the supporting frame, a fixing frame is fixedly connected to the side, close to the supporting frame, of the base, a reinforcing frame is fixedly connected to one side of the fixing frame through a support, a driving motor is fixedly connected to the interior of the reinforcing frame, and the bottom of the fermentation cylinder communicates with a discharging frame. The invention discloses a pretreatment device, and relates to the technical field of fertilizer preparation. According to the fertilizer making device for the bamboo shoot processing residues, materials in the processing barrel can be conveniently crushed at different angles, and the residues can be crushed more finely.

The utility model discloses a phyllostachys praecox shoot sales storage adjusting rack convenient to assemble and disassemble, which comprises an adjusting rack, a plurality of inserting holes distributed at equal intervals are formed in the inner walls of the two sides of the adjusting rack, a plurality of supporting plates are arranged in the adjusting rack, a square frame plate is arranged at the bottom of each supporting plate, and two sliding grooves are formed in the two ends of each square frame plate. The two sliding grooves located at the same end are internally provided with the same sliding block, the sliding blocks are slidably connected with a square frame plate, the sides, away from each other, of the two sliding blocks are fixedly connected with connecting plates, the connecting plates are sleeved with first guiding frame plates, the connecting plates are slidably connected with the first guiding frame plates, and the first guiding frame plates are fixedly connected with the bottom of a supporting plate. The side, away from the sliding block, of the connecting plate is fixedly connected with a plug pin, and the plug pin is matched with the inserting hole. According to the utility model, the storage frame can be quickly mounted and dismounted, so that the time required for loading and unloading operation is shortened, the overall working efficiency is improved, the storage space can be effectively utilized, and the storage layout is optimized.

The utility model discloses a kind of high-efficiency bamboo shoot stripping devices, including bamboo shoot stripping box and guide compression roller, loading conveyor belt and servo motor driven loading shaft are equipped in bamboo shoot stripping box, the spacing between guide compression roller is adjusted by threaded rod shaft and buffer spring, different specifications bamboo shoot's clamping and conveying are adapted, shell knife controlled by electric push rod is equipped on mounting bracket, realize accurate longitudinal cutting shell in cooperation with pressure sensor, double separation rubber roller linked by belt pulley is further equipped in bamboo shoot stripping box, and the efficient separation of bamboo shoot shell and bamboo shoot is completed.The utility model is linked by threaded rod shaft, lifting plate and buffer spring, the spacing between guide compression roller and conveyor belt can be manually adjusted, different diameter bamboo shoot shell processing is adapted, while buffer spring provides elastic compensation to size fluctuation, avoid to press loss bamboo shoot, electric push rod and pressure sensor accurately control shell knife pressure degree, avoid to cut bamboo shoot, while ensure that shell is completely, improve yield, applicable to different shell thickness bamboo shoot, more stronger adaptability.

The utility model discloses a bamboo shoot processing and boiling device convenient for discharging, which belongs to the field of bamboo shoot processing and comprises a heating barrel, and two cavities are arranged in the heating barrel; the two material jacking parts are respectively arranged in the two cavities; the switching mechanism is arranged in the heating barrel; the bidirectional power mechanism is arranged at the top of the switching mechanism; the switching mechanism is used for switching the driving direction of the two-way power mechanism so as to be driven by the two material ejecting pieces respectively, and the material ejecting pieces eject the product out of the cavity. Compared with a manual mode, the bamboo shoot processing and boiling device facilitating discharging saves time and labor, is higher in safety and does not need to spend time in waiting, and therefore the use efficiency is improved.

The utility model relates to the technical field of cart devices, and discloses a multifunctional bamboo shoot processing material transportation cart device which comprises a cart body, a push handle is fixedly installed on the right side of the cart body, a cart box is arranged above the cart body, and two universal wheels are fixedly installed on the left side of the bottom of the cart body. Two moving structures are fixedly mounted on the right side of the bottom of the vehicle body. The driving motor is started to drive the first chain wheel to rotate, the chain on the first chain wheel can drive the second chain wheels at the bottoms of the threaded rods on the two sides of the vehicle body to rotate synchronously in the same direction, the second chain wheels are fixedly connected with the threaded rods through the connecting rods, and the second chain wheels can drive the threaded rods to rotate. When the threaded rod rotates, the connecting block can be controlled to drive the carriage to ascend and descend on the vehicle body, so that the position of the basket can be adjusted according to the height of equipment, and workers can load and unload bamboo shoots more conveniently.

The present application relates to bamboo shoot processing technical field, disclose a kind of bamboo shoot automatic slitting pretreatment integrated device, including water tank shell, the water tank shell front and rear sides are connected with buffer bracket, the buffer bracket top end of front side is rotatably connected with feeding hopper, the buffer bracket top end of rear side is rotatably provided with discharge hopper, the discharge hopper is connected with slicing assembly, the water tank shell inner wall is rotatably provided with two transmission frames, the transmission frame both ends are connected with transmission belt, the transmission belt is connected with multiple sets of peeling assembly.The present application guarantees the consistency of slice thickness, the whole processing is completed in water tank shell, reduces the opportunity of contact with the outside world, effectively avoids secondary pollution, integrates three processes of cleaning, peeling and slicing in the same device, realizes the continuous automatic processing of bamboo shoot, saves the manual transfer between processes, significantly improves the processing efficiency and reduces the labor intensity.

The utility model provides a bamboo shoot metal rapid detection device which comprises a device body, a detection frame is installed in the middle of the top surface of the device body, a metal detector is installed at the top end in the detection frame, a material distribution frame is installed on one side of the device body, and a partition plate is vertically installed in the middle of the interior of the material distribution frame. A mounting plate is mounted on the surface of the top of the partition plate, a rotating motor is mounted on the surface of the top of the mounting plate, the output end of the rotating motor penetrates through the surface of the mounting plate and is provided with a fixing sleeve, a partition plate is arranged on the peripheral side face of the fixing sleeve, and collecting frames are placed in the distributing frame and located on the two sides of the partition plate correspondingly; the detection frame and the metal detector are arranged at the top of the device body to form a core detection module, metal elements in the bamboo shoots can be rapidly and accurately detected, and the edible safety of the bamboo shoots is controlled from the source.

The utility model relates to a solution sterilization device for bamboo shoot can production, including liquid storage tank, blowoff pipe, mounting bracket and rotating component, the shape of liquid storage tank is the hollow inside and the upper end face is missing's cylinder, the blowoff pipe is connected in the outside of liquid storage tank, the one end of blowoff pipe is away from liquid storage tank and is connected with control valve, the mounting bracket is assembled in the outside of liquid storage tank, rotating component sets up in the inside of liquid storage tank, rotating component includes the pivot that rotates and connects between liquid storage tank with mounting bracket, this solution sterilization device for bamboo shoot can production, through the operation of rotating component, drives bamboo shoot to rotate in the inside of liquid storage tank, effectively increased bamboo shoot and the mixing efficiency of disinfectant solution, has promoted the sterilization effect, after disinfecting, through the centrifugal force that rotating component generated, can easily shake off the solution that bamboo shoot outer surface adheres, has simplified the subsequent processing step, improved production efficiency.

The utility model provides a bamboo shoot dewatering device, which relates to the technical field of bamboo shoot processing and comprises a casing, a plurality of support columns are fixedly mounted at the lower end of the casing, a rotating column is rotatably mounted in the middle of the bottom in the casing, a plurality of material boxes are sleeved on a column body of the rotating column, and a plurality of annular plates are fixedly mounted in the casing. After a worker puts bamboo shoots into the material box, the rotating column is controlled to rotate, so that the rotating column drives the material box to rotate, the material box moves relative to the air holes, the contact range of the bamboo shoots and air flow is enlarged, and the situation that the bamboo shoots located at dead corners cannot make contact with the air flow is avoided; a worker controls the stirring shaft to rotate, and the rotating stirring shaft drives the stirring blades to rotate, so that the stirring blades can stir the bamboo shoots in the material box, the bamboo shoots in the material box roll over, the situation that the bamboo shoots located on the lower layer cannot make contact with airflow is avoided, and the drying efficiency is greatly improved.

1. Name of the product in this design: Packaging Box (Bamboo Shoot and Beef Sauce 2). 2. Intended use of this design: food packaging. 3. The key design elements of this product are the combination of shape, pattern, and color. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. The design for which protection is sought includes color.

The utility model discloses a kind of bamboo shoot shell shipment conveying devices, including the first conveying table of being arranged above and the second conveying table below, the first conveying table includes first driving drum and first driven drum, baffle is provided along the direction of transmission, the middle part of baffle is equipped with the gap for supporting and connecting peeling assembly;The blanking edge of peeling assembly is equipped with inclined downward blanking table, the discharge port position of blanking table exceeds the coverage of second conveying table;Second conveying table is grid conveyor belt, using Z shape design, its direction of transmission is opposite to first conveying table, for common extrusion bamboo shoot shell to facilitate removal moisture;The lower portion of second conveying table is equipped with water holding table, for collecting waste water generated in extrusion process.The utility model is through the design of double-layer conveying table, realizes the peeling of bamboo shoot, the separate transport of bamboo shoot after peeling, the shunt delivery and extrusion of bamboo shoot shell and multiple effects, effectively improve production efficiency, keep the clean of working environment.

The utility model discloses a bamboo shoot precooking device, belongs to the technical field of bamboo shoot precooking, and aims to solve the problems that a lifting mechanism is fixedly arranged, bamboo shoots need to be manually taken out after being lifted out of water, the whole bamboo shoots cannot be taken out, the taking-out speed is low, and the quality of the bamboo shoots is affected. Comprising a box and a mounting frame, a supporting rod is mounted in the middle of one end of the upper portion of the box, a mounting plate is mounted on the side face of the upper end of the supporting rod, an air cylinder fixedly penetrates through the mounting plate, a clamping block is connected to the lower end of the air cylinder, two symmetrically-distributed connecting blocks are mounted on the upper surface of the mounting frame, and a limiting assembly is arranged on the upper surface of the mounting frame. According to the bamboo shoot pre-cooking device, through the arrangement of the limiting assembly, movable arrangement of the placing frame is achieved, after bamboo shoots are lifted out of water, the placing frame and the bamboo shoots can be integrally taken out, the taking-out speed is high, the situation that the bamboo shoots are taken out slowly to affect the quality of the bamboo shoots is prevented, and the working efficiency can also be improved by integrally taking out and replacing the placing frame.

The utility model relates to a kind of soaking devices for bamboo shoot can processing, including chassis, three support frames are vertically installed on the chassis, the inside rotation of left side two the support frame is connected with same driving shaft, driving structure is provided on the chassis with the driving connection of the driving shaft;The inside rotation of right side the support frame is connected with a driven shaft, the opposite end of the driving shaft with the driven shaft is evenly installed with fixed frame, one soaking tank is set between the opposite side of two the fixed frame;The outside of the soaking tank is communicated with a connecting pipe.The soaking device for bamboo shoot can processing, through driving structure driving soaking tank rotation, while the projection set in the inner peripheral wall of soaking tank can effectively drive its internal bamboo shoot to overturn, ensure that bamboo shoot can be evenly soaked by liquid in soaking process, not only improve soaking efficiency, but also guarantee the uniformity of soaking, so that bamboo shoot can more fully absorb the component in soaking liquid.

The utility model is suitable for the technical field of bamboo shoot processing, and provides a bamboo shoot peeling device for bamboo shoot processing. The U-shaped frame is assembled on the bottom frame and is used for winding and peeling the outer skin of the bamboo shoots; the placing frame is fixedly installed on the bottom frame and used for placing bamboo shoots, and a blade is arranged on the placing frame and used for opening the bamboo shoots placed on the placing frame; the peeling mechanism is assembled on the bottom frame and the U-shaped frame, and the peeling mechanism is used for driving the U-shaped frame to rotate to wind and peel the skin of the bamboo shoots; the peeling mechanism comprises a servo motor fixedly mounted on the bottom frame; and the mounting shaft is rotationally mounted on the bottom frame. The bamboo shoot peeling device for bamboo shoot processing provided by the utility model can automatically peel bamboo shoots, so that the bamboo shoot peeling operation is more convenient, and the labor intensity of workers is reduced.

1.The name of the design product: packaging bag (vegetarian bamboo shoot tip). 2.The use of the design product: for packaging bag. 3.The design points of the design product: the combination of shape, pattern and color. 4.The picture or photo that best shows the design points: front view. 5.The design for which protection is sought contains colors. 6.The design product is a planar product, and the left view, right view, top view and bottom view are omitted.

This invention discloses a multi-stage buffer-type peeling and separating device for bamboo shoot processing, belonging to the technical field of bamboo shoot processing equipment. It includes a processing table with a vertical plate mounted on its upper rear. A movable frame is hinged to the upper part of the vertical plate. Rotating rollers are mounted on the front ends of both the movable frame and the vertical plate. Two limiting rollers are symmetrically and adjustablely mounted on the surfaces of the two rotating rollers. A lower peeling roller is mounted on the front end of the vertical plate on one side of the rotating rollers. An upper peeling roller is adjustablely mounted on the front end of the vertical plate above the lower peeling roller. Cleaning components are mounted on the surfaces of both the lower and upper peeling rollers. A buffer collection box is placed below the upper peeling roller. This invention uses a hinged movable frame combined with a return spring to form an elastic adaptation structure. Simultaneously, the clamping distance of the limiting rollers can be adjusted threadedly, enabling it to adapt to bamboo shoots of varying thicknesses after harvesting. This solves the defects of traditional equipment where the clamping structure is fixed and cannot be adjusted, causing thicker bamboo shoots to crack and thinner bamboo shoots to slip and be missed during peeling, effectively improving the overall peeling qualification rate.

The utility model discloses a bamboo shoot harvesting hoe which comprises a hoe body and a hoe handle, the lower end of the hoe handle is fixedly connected to the middle of the hoe body, the longitudinal section of the hoe body is an outer arc, the hoe body comprises a large hoe body and a small hoe body which are oppositely arranged, the size of the large hoe body is larger than that of the small hoe body, and arc-shaped hoe blades are arranged at the ends of the large hoe body and the small hoe body. A hoe blade of the large hoe body is an arc-shaped large hoe blade, a hoe blade of the small hoe body is an arc-shaped small hoe blade, and an arc-shaped cutting blade is further arranged in the middle of the back face of the hoe body. Compared with the prior art, the bamboo shoot cutting device has the advantages that the bamboo shoot cutting device is easy to operate and convenient to carry, the appearance of a bamboo shoot body cannot be damaged, and the integrity of the bamboo shoot can be kept.

This utility model relates to the technical field of ready-to-eat bamboo shoot packaging equipment, and in particular to a quantitative packaging device for ready-to-eat bamboo shoot production. It can adjust the height of the storage chamber, allowing the distance from the material inlet to the weighing platform to accommodate containers of different heights, thus improving practicality. The device includes a support plate with four limiting grooves on its outer periphery. Four weighing platforms are located below the limiting grooves at the bottom of the support plate. A storage mechanism is positioned above the support plate, and a lifting mechanism is connected between the storage mechanism and the support plate. The storage mechanism includes a support plate with storage chambers fixedly connected to both its left and right ends. The bottoms of both storage chambers are funnel-shaped, and both bottoms are fixedly connected to a material inlet. The lifting mechanism includes a fixed frame and a lifting motor, both fixedly mounted on the top of the support plate. The lifting motor is located in the center of the support plate and is used to adjust the height of the storage chambers.

The utility model relates to quick -frozen equipment technical field, concretely is a kind of bamboo shoot quick -frozen equipment, including quick -frozen machine body, the conveying mechanism top surface of quick -frozen machine body is provided with the anti -adhesion mechanism for preventing bamboo shoot adhesion on conveyer belt. The output mechanism of quick -frozen machine body is provided with the cleaning mechanism for cleaning away ice debris on conveyer belt at discharging place, the conveying mechanism frame top surface of quick -frozen machine body is both fixedly connected with fixed long plate, the anti -adhesion mechanism includes two symmetries and the round bar rotationally connected between two fixed long plates, round bar outer wall both ends are fixedly connected with sprocket. In the utility model, by the rolling of two chains, can make multiple shovel plate turn to shovel bamboo shoot, avoid bamboo shoot long time and conveyer belt contact and adhere on conveyer belt, so that the bamboo shoot after quick -frozen is just placed on conveyer belt, not stick on conveyer belt, to facilitate when discharging staff packs the bamboo shoot after quick -frozen.

1. The name of the design product: wine bottle (bottle of bamboo shoot). 2. The use of the design product: the design product is used for wine storage, preservation and sealing. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

1. Name of the product in this design: Round Table (Bamboo Shoot). 2. Purpose of this design: for placing items. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present application relates to the technical field of pressure control valve, especially to a pressure control valve of bamboo shoot for low-temperature puffing device and a puffing process thereof, comprising a valve body, a mounting frame is installed on the valve body, fixed connection is arranged on both sides of the mounting frame, a fixed frame is arranged, a transmission moving away assembly is rotatably connected on the fixed frame, a protective cover for protecting the flange end on both sides of the valve body is arranged on the transmission moving away assembly, an end face treatment assembly for pretreating the flange end face to be connected of the valve body is arranged on the inner wall of the protective cover, by arranging the protective cover at the flange end of both ends of the valve body, the flange end face can be effectively shielded and protected before the valve body is installed, so as to avoid the end face from being knocked and scratched during storage and transportation, ensure the flatness and cleanness of the end face, and then make the sealing gasket closely fit when the valve and the pipeline are connected, improve the assembly sealing effect, prevent leakage, and ensure the stable control of the puffing bin pressure.