A peeled shrimp device with circulating water flushing structure

Abstract

The present application relates to crustacean aquatic product processing equipment technical field, especially to a kind of stripping shrimp device with circulating water flushing structure, comprising: working frame, the conveying assembly for conveying shrimp body is equipped in the working frame;Shrimp back opening unit is set on the working frame, for forming opening in shrimp back;Shrimp line removal unit is set on the working frame, for removing shrimp line;Shrimp meat picking unit is set on the working frame, for separating shrimp meat and shrimp shell;Clamping assembly is set on the conveying assembly, for clamping shrimp body;Flushing assembly, including the water storage frame for storing circulating water and being set below working frame, water pump is set in the water storage frame.By the cooperation of water pump, water storage frame, water suction pipe, shunt pipe and spray pipe, the accurate water flushing of shrimp back opening unit and shrimp line removal unit is realized, the water sprayed is returned to water storage frame after collection and filtration and is recycled, and the production water cost is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of crustacean aquatic product processing equipment, and in particular to a shrimp peeling device with a circulating water rinsing structure. Background Technology

[0002] In the deep processing of shrimp products, multiple steps are typically required, including splitting the shrimp's back, removing the intestinal tract, and separating the shell from the meat, to obtain pure shrimp meat for subsequent food processing. Although existing automated shrimp peeling equipment has achieved mechanized and continuous operation of the above processes, there are still significant technical shortcomings in practical applications.

[0003] Currently, most shrimp-peeling equipment lacks effective rinsing methods during the back-opening and deveining processes. This leads to the accumulation of shrimp shell fragments, vein residue, and adhering tissue on core working components such as the cutting blade and scraper, affecting the sharpness and cleanliness of the cutting edges, reducing processing quality, and forcing frequent machine shutdowns for manual cleaning, thus hindering production efficiency. To address these issues, some existing solutions have added rinsing devices. However, these solutions often use direct-flow rinsing, meaning the rinse water, carrying impurities, is directly discharged without being recycled. While this method can remove residue to some extent, it results in extremely high water consumption, especially in large-scale continuous production scenarios, leading to severe water waste and significantly increasing water costs for enterprises.

[0004] Therefore, there is an urgent need to develop a shrimp-peeling device that can remove processing residues while recycling water resources, in order to reduce water costs and ensure the long-term stable and efficient operation of the equipment. Summary of the Invention

[0005] In order to overcome the shortcomings of existing shrimp peeling equipment rinsing methods, such as large water consumption and high water cost, this invention provides a shrimp peeling device with a circulating water rinsing structure.

[0006] The technical solution is as follows: A shrimp peeling device with a circulating water rinsing structure, comprising: A working frame, wherein a conveying assembly is provided for conveying shrimp bodies; A shrimp back-opening unit is provided on the working frame and is used to form an opening on the back of the shrimp body; A shrimp vein removal unit is disposed on the working frame and is used to remove the shrimp vein; A shrimp meat extraction unit is set on the working frame to separate shrimp meat from shrimp shells; A clamping component, disposed on the conveying component, is used to clamp the shrimp body; The rinsing assembly includes a water storage frame disposed below the working frame for storing circulating water, a water pump disposed within the water storage frame, a water pump connected to the water outlet of the water pump, a diversion pipe connected to the water pump, and a spray pipe disposed on the diversion pipe. The nozzle of the spray pipe faces the shrimp back opening unit and the shrimp devein unit. The water pump transports the water in the water storage frame through the water pump and the diversion pipe to the spray pipe for spraying. The sprayed water flows back into the water storage frame for recycling. The control panel, the shrimp back-opening unit, the shrimp vein removal unit, the shrimp meat extraction unit, and the water pump are all electrically connected to the control panel.

[0007] Preferably, the diversion pipe has multiple branches, each branch is provided with a nozzle, and the inner wall of the nozzle is provided with a number of nozzles spaced apart along the length direction. The nozzles of the multiple nozzles are respectively arranged facing the shrimp back opening unit and the shrimp de-line unit on both sides.

[0008] Preferably, the conveying assembly includes pulleys, a conveyor belt, and a drive motor. Two pulleys are provided and rotatably connected to both sides of the working frame. The conveyor belt is wound around the two pulleys. The drive motor is mounted on the working frame, and the output shaft of the drive motor is drivenly connected to the pulleys. The drive motor is electrically connected to the control panel. Multiple clamping assemblies are provided and are spaced apart along the length of the conveyor belt.

[0009] Preferably, the clamping assembly includes a support seat disposed on the conveyor belt and two clamping blocks disposed on the support seat. The two clamping blocks can move closer or further apart to clamp or release the shrimp body, and a clamping spring is provided between the two clamping blocks.

[0010] Preferably, the clamping assembly further includes a pushing assembly for driving the clamping blocks to move. The pushing assembly includes a U-shaped abutment rod disposed on the working frame and a transmission component disposed on the support base. When the support base moves with the conveyor belt to abut against the U-shaped abutment rod, the transmission component responds to the push of the U-shaped abutment rod and drives the two clamping blocks to move closer to each other to clamp the shrimp body.

[0011] Preferably, the transmission component includes a turntable, a transmission rod, a T-shaped guide rod, a passive protrusion, and an active protrusion. The turntable is rotatably connected to the support base. The transmission rod is fixedly connected to the clamping block and has a transmission groove. The passive protrusion is located on the turntable and engages in the transmission groove. The T-shaped guide rod is slidably mounted on the support base and has a guide groove. The active protrusion is located on the turntable and engages in the guide groove. The end of the T-shaped guide rod forms a pushing relationship with the U-shaped abutment. When the T-shaped guide rod is pushed by the U-shaped abutment, the active protrusion drives the turntable to rotate, which in turn drives the two clamping blocks to move closer to each other through the passive protrusion and the transmission groove.

[0012] Preferably, the system also includes a collection component disposed within the working frame. The collection component comprises multiple collection frames, with the area located to the side of the shrimp meat removal unit serving as the shrimp shell shedding area. Each collection frame is respectively disposed below the shrimp vein removal unit, the shrimp meat removal unit, and the shrimp shell shedding area, and is used to collect shrimp veins, shrimp meat, and shrimp shells, respectively. The collection component also includes a first filter and a second filter. The first filter is disposed within the collection frame, and the second filter is disposed within the water storage frame. The first filter and the second filter are a multi-stage filtration structure with upper and lower layers. The water filtered by the first filter and the second filter flows back to the water storage frame.

[0013] Preferably, the system also includes a feeding assembly, which is disposed on the working frame and located at the input end of the conveying assembly. The feeding assembly includes a feeding cylinder and a discharge trough block. The feeding cylinder has a feeding trough for accommodating shrimp bodies. The discharge trough block is disposed on the working frame at a position corresponding to the lower part of the feeding cylinder. The inner groove of the discharge trough block is connected to the feeding trough and can only accommodate a single shrimp body. The inner groove of the discharge trough block is provided with a pusher for pushing the shrimp body from the discharge trough block onto the clamping assembly.

[0014] Preferably, the assembly also includes a swinging component, which comprises a transmission disc, a lifting rod, and a swinging rod. The transmission disc is linked to the conveying component and is mounted on a pulley on one side. A protruding rod is connected to the transmission disc at a position offset from its rotation axis. The lifting rod is a long rod-shaped structure with a mating groove. The lifting rod is movably engaged with the protruding rod in the mating groove for support and installation. At least one end of the lifting rod has a movable groove, through which the swinging rod is movably connected. The swinging rod is fixedly connected to the nozzle. When the transmission disc rotates with the pulley, the engagement of the protruding rod and the mating groove drives the lifting rod to reciprocate, thereby driving the nozzle to swing back and forth through the swinging rod to change the water spray angle.

[0015] The beneficial effects of the present invention are as follows: 1. By cooperating with the water pump, water storage frame, water suction pipe, diversion pipe and spray pipe, the precise water spraying and rinsing of the shrimp back opening unit and the shrimp vein removal unit can be achieved. The sprayed water is collected, filtered and then returned to the water storage frame for recycling, which effectively reduces the cost of production water.

[0016] 2. By using the first filter element in the upper and lower layers of the collection frame and the second filter element in the water storage frame to form a multi-stage filtration structure, the return flushing water is filtered step by step to ensure the cleanliness of the circulating water, prevent residue from re-adhering to the processing parts with the water flow, and ensure a long-lasting and stable flushing effect.

[0017] 3. Through the coordinated operation of the conveying and clamping components, multiple processes such as feeding, backing, deveining, rinsing, meat picking, and shell-meat separation are integrated into the same equipment. Each station works in parallel, realizing continuous batch processing and greatly improving production efficiency.

[0018] 4. The clamping block is automatically clamped and released by the inclined surfaces of the U-shaped abutment and the T-shaped guide. The operator can precisely adjust the clamping displacement through the threaded rocker, so that the clamping force can be flexibly adjusted according to the size of the shrimp, which can firmly fix the shrimp and avoid excessive clamping force that could damage the shrimp meat.

[0019] 5. The drive motor power is transmitted to the elliptical disc through the transmission component, which drives the lifting frame and three collection frames to rise and shake synchronously, accelerating the filtration speed of accumulated water, preventing filter blockage, extending the filtration operation time, and reducing the frequency of manual cleaning.

[0020] 6. The right-side pulley main shaft converts the rotational motion into the reciprocating oscillation of the nozzle through the transmission disc, cam, and lifting rod, so that the nozzle continuously changes the spray angle to perform multi-angle sweeping rinsing on the core working parts of the shrimp back opening unit and shrimp line removal unit, effectively eliminating rinsing dead corners. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a three-dimensional structural diagram of the components of the present invention, including the working frame, protective shell, and control screen.

[0023] Figure 3 This is a three-dimensional structural diagram of the shrimp back opening unit, conveyor belt, and clamping block of the present invention.

[0024] Figure 4 This is a three-dimensional structural diagram of the components of the present invention, including the water pumping pipe, the elliptical disk, and the transmission assembly.

[0025] Figure 5 This is a three-dimensional structural diagram of the components of the present invention, such as the flow divider, nozzle, and drive motor.

[0026] Figure 6 This is a three-dimensional structural diagram of the components of the present invention, including the pulley, conveyor belt, and shrimp-opening unit.

[0027] Figure 7 This is a three-dimensional structural diagram of the shrimp deveining unit, shrimp meat extraction unit, and nozzle of the present invention.

[0028] Figure 8 This is a three-dimensional structural diagram of the support base, clamping block, and transmission disc of the present invention.

[0029] Figure 9 This is a three-dimensional structural diagram of the components of the present invention, including the water pump, water storage frame, and water pumping pipe.

[0030] Figure 10 This is a three-dimensional structural diagram of the components of the present invention, including the collection frame, the first filter element, and the second filter element.

[0031] Figure 11 This is a three-dimensional structural diagram of the components of the present invention, including the U-shaped abutment, threaded sleeve, and threaded rocker.

[0032] Figure 12 This is a three-dimensional structural diagram of the clamping block, T-shaped guide rod, and bellows components of the present invention.

[0033] Figure 13 This is a breakdown diagram of the turntable, transmission rod, and T-shaped guide rod of the present invention.

[0034] Figure 14 This is a breakdown diagram of the turntable, active protrusion, and clamping block components of the present invention.

[0035] Figure 15 This is a three-dimensional structural diagram of the workbench, feeding cylinder, and feeding trough of the present invention.

[0036] Figure 16 This is a three-dimensional structural diagram of the components of the present invention, including the discharge trough block, the pusher, and the baffle.

[0037] Figure 17 This is a three-dimensional structural diagram of the components such as the protruding rod, the swing rod, and the mating groove of the present invention.

[0038] Explanation of reference numerals in the attached diagram: 1_Working frame, 101_Control panel, 102_Shrimp back opening unit, 103_Shrimp deveining unit, 104_Shrimp meat removal unit, 105_Water pump, 1051_Water storage frame, 106_Water suction pipe, 107_Diverter pipe, 108_Sprayer, 109_Water valve, 1010_Protective shell, 201_Pulley, 202_Conveyor belt, 203_Drive motor, 301_Support base, 302_Clamping block, 303_Clamping spring, 304_Turntable, 305_Transmission rod, 306_T-shaped guide rod, 307_Passive protrusion, 308_Active protrusion, 309_Bellwall, 401 _U-shaped stop bar, 402_threaded sleeve, 403_threaded rocker arm, 404_collection frame, 405_first filter element, 406_second filter element, 407_opening and closing door, 501_workbench, 502_feeding cylinder, 503_feeding trough, 504_first electric slide rail, 505_discharge trough block, 506_second electric slide rail, 507_push component, 508_stop component, 601_elliptical disc, 602_transmission assembly, 603_lifting frame, 604_top component, 701_transmission disc, 702_lifting rod, 703_protruding rod, 704_swinging rod, 705_fitting groove, 706_movable groove. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] Example 1: A shrimp peeling device with a circulating water rinsing structure, such as Figures 1-14As shown, the system includes a working frame 1, a control panel 101, a shrimp back-opening unit 102, a shrimp deveining unit 103, a shrimp meat picking unit 104, a water pump 105, a water storage frame 1051, a water suction pipe 106, a diversion pipe 107, a spray pipe 108, a water valve 109, a conveying assembly, and a clamping assembly. The control panel 101 is installed on the top right side of the working frame 1. The inner cavity of the working frame 1 is divided into a lower area, a middle area, and an upper area from bottom to top. The conveying assembly is installed in the upper area of ​​the working frame 1. The shrimp back-opening unit 102 and the shrimp deveining unit 103 are respectively installed on the upper and lower right sides of the upper area of ​​the working frame 1. The shrimp back-opening unit 102 is located at the top of the conveying assembly. Above the conveying component, as the first step in shrimp processing, the shrimp deveining unit 103 is located below the conveying component. As the second step in shrimp processing, a shrimp meat extraction unit 104 is located on the left side of the upper area of ​​the working frame 1, aligned with the shrimp deveining unit 103. As the final step in shrimp processing, the conveying component is equipped with a clamping component for clamping individual shrimp. A water storage frame 1051 is installed in the lower area of ​​the working frame 1 to store circulating water. A water valve 109 is connected to the bottom of the water storage frame 1051 for injecting and draining water into and out of the water storage frame 1051. A water pump 105 is installed on the inner wall of the water storage frame 1051. The water inlet of the water pump 105 is connected to the inner cavity of the water storage frame 1051. The water outlet of the water pump 105 is connected to and connected to a water suction pipe 106. The water suction pipe 106 passes through the rear side wall of the working frame 1 and extends vertically upward to the upper area of ​​the working frame 1. The upper end of the water suction pipe 106 is symmetrically connected with two diversion pipes 107. The height positions of the two diversion pipes 107 correspond to the shrimp back opening unit 102 and the shrimp line removal unit 103, respectively. The diversion pipes 107 have left and right branches. Each branch is rotatably equipped with a spray pipe 108 sealed by a sealing ring. The spray pipes 108 rotatably extend into the upper area of ​​the working frame 1. The inner wall of the spray pipe 108 extends along its length. Spray nozzles are spaced apart and face the left and right sides of the shrimp back opening unit 102 and the shrimp deveining unit 103, respectively. The shrimp back opening unit 102, the shrimp deveining unit 103, the shrimp meat picking unit 104, and the water pump 105 are all electrically connected to the control panel 101. The water pump 105 draws water from the water storage frame 1051 into the diversion pipe 107 through the water pumping pipe 106, and finally sprays it out from the nozzles on the spray pipe 108 onto the shrimp back opening unit 102 and the shrimp deveining unit 103, achieving precise water spraying to clean up the residue in the shrimp processing. The sprayed water falls back into the water storage frame 1051 from top to bottom, and is then pumped back into the diversion pipe 107 by the water pump 105 to achieve water recycling.

[0041] like Figures 3-6As shown, the conveying assembly includes pulleys 201, a conveyor belt 202, and a drive motor 203. The pulleys 201 are symmetrically rotatably connected to the upper region of the working frame 1, and the conveyor belt 202 is wound between the two pulleys 201. The drive motor 203 is bolted to the upper left side of the rear side wall of the working frame 1. The main shaft of the pulley 201 on the left side rotates to the rear side of the working frame 1 and is fixedly connected to the output shaft of the drive motor 203. The drive motor 203 is electrically connected to the control panel 101. By setting the running speed and interval of the drive motor 203 on the control panel 101, the shrimp are conveyed at intervals by the conveyor belt 202 in conjunction with the clamping assembly.

[0042] The shrimp back-opening unit 102 includes a first mounting flange, a knife holder, an elastic floating unit, and a rotating disc cutter. The first mounting flange is fixedly installed on the inner wall of the work frame 1. The knife holder is floatingly mounted on the first mounting flange via the elastic floating unit. The rotating disc cutter is rotatably mounted on the knife holder, with its blade facing the conveying path of the conveyor belt 202. When a shrimp is conveyed from left to right by the conveyor belt 202 to the shrimp back-opening unit 102, the rotating disc cutter presses against the shrimp's back. The elastic floating unit allows the disc cutter to adaptively float up and down according to changes in the shrimp's body thickness. The disc cutter rolls and cuts open the shrimp's back shell, forming a back opening, controlling the cutting depth. After the shrimp shell is cut open without deeply damaging the internal shrimp meat, the shrimp continues to be conveyed forward, leaving the shrimp shell opening unit 102. The shrimp deveining unit 103 includes a second mounting flange, an extended blade, a second elastic floating unit, and a rotating hook scraper. The second mounting flange is fixed to the inner wall of the working frame 1, and the extended blade is connected to the second mounting flange. The end of the extended blade is equipped with a rotating hook scraper, which floats through the second elastic floating unit. The rotating hook scraper is located below the lower layer of the conveyor belt 202 and can extend into the shrimp's back opening. After the shrimp has been shelled, it is conveyed from left to right with its back facing down after turning at the upper layer of the conveyor belt 202, and then conveyed to the shrimp deveining unit 103. At the workstation, the rotating hook scraper wheel extends into the already cut back opening of the shrimp. The second elastic floating unit allows the rotating hook scraper wheel to adapt to the shrimp's body shape by moving up and down. As the rotating hook scraper wheel rotates, it hooks and scrapes the shrimp vein inside the shrimp and removes it. After removing the shrimp vein, the shrimp continues to be conveyed to the left to enter the next workstation. The shrimp meat picking unit 104 includes a third mounting base, a drive motor, a transmission mechanism, and several sets of picking needle swing arms. The third mounting base is mounted on the inner wall of the work frame 1. The drive motor and the transmission mechanism are mounted on the third mounting base. The drive motor is connected to each set of picking needle swing arms through the transmission mechanism, driving multiple sets of picking needle swing arms to perform synchronous periodic reciprocating swings to complete the back opening and shrimp vein removal. Shrimp are intermittently conveyed to the shrimp meat picking unit 104. The drive motor drives the transmission mechanism, which drives the picking needle arm to swing back and forth. When the shrimp is in place, the picking needle arm swings downward, and the picking needle head extends into the opening on the back of the shrimp, applying downward force to the shrimp meat. The shrimp shell is held and limited by the clamping component and will not move downward with the shrimp meat. The shrimp meat is picked down by the picking needle arm, realizing the separation of shrimp meat from shrimp shell. After the meat is picked up, the picking needle arm swings upward to lift and reset. The shrimp shell continues to be conveyed to the left by the conveyor belt 202 and discharged, waiting for the next shrimp to arrive. The shell and meat separation operation is completed in a cycle. The shrimp back opening unit 102, the shrimp vein removal unit 103, and the shrimp meat picking unit 104 are all existing technologies.

[0043] like Figures 3-6 , Figure 8 and Figures 11-14As shown, the clamping assembly includes a support base 301, a clamping block 302, a clamping spring 303, a bellows 309, and a pushing assembly. Three support bases 301 are fixedly connected at equal intervals on the upper and lower surfaces of the conveyor belt 202. Clamping blocks 302 are slidably connected to the front and rear sides of the support base 301. Clamping springs 303 are connected between the left and right ends of two clamping blocks 302 on the same support base 301. Bellows 309 are sleeved on the outside of the clamping springs 303. The two ends of the bellows 309 are fixedly connected to the inner wall of the corresponding clamping block 302, forming a protection for the clamping springs 303. At the same time, the bellows 309 can retract as the clamping springs 303 extend and retract. A pushing assembly is provided on the support base 301.

[0044] like Figures 11-14 As shown, the pushing assembly includes a turntable 304, a transmission rod 305, a T-shaped guide rod 306, a passive protrusion 307, an active protrusion 308, a U-shaped abutment 401, a threaded sleeve 402, and a threaded rocker 403. The turntable 304 is rotatably connected to the bottom of the support base 301. The transmission rod 305 is horizontally fixed to the bottom of the clamping block 302. A transmission groove is horizontally formed on the transmission rod 305. A T-shaped guide rod 306 is slidably mounted on the front side of the support base 301 in the front-rear direction. A guide groove is formed on the short section of the T-shaped guide rod 306. The long end face of the T-shaped guide rod 306 is designed as a bevel structure, with the bevel facing to the right. Passive protrusions 307 are fixedly connected to the front and rear sides of the top of the turntable 304. The passive protrusions 307 are engaged in the transmission grooves of the corresponding side transmission rods 305, forming a movable fit. A active rocker 408 is fixedly connected to the rear side of the bottom of the turntable 304. The moving protrusion 308 engages with the guide groove of the corresponding T-shaped guide rod 306, forming a movable fit. A U-shaped abutment 401 is slidably mounted on the front side of the upper region of the working frame 1 along the front-back direction. The U-shaped abutment 401 is located outside the conveyor belt 202. The leftmost end of the upper section of the U-shaped abutment 401 is designed with a sloping structure, with the sloping surface facing left. The sloping surface of the long section of the T-shaped guide rod 306 and the sloping surface of the U-shaped abutment 401 form a contact fit relationship. The length range of the upper and lower sections of the T-shaped guide rod 306 covers the positions of the shrimp back opening unit 102, the shrimp vein removal unit 103, and the shrimp meat picking unit 104. A threaded rocker 403 is rotatably connected through the right side of the front side wall of the working frame 1, corresponding to the position of the upper region. A threaded sleeve 402 is fixedly connected to the right side of the front side wall of the U-shaped abutment 401. The threaded section of the threaded rocker 403 is threadedly connected to the inner cavity of the threaded sleeve 402.

[0045] like Figure 1 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 10As shown, it also includes a collection component, which is set in the area of ​​the working frame 1. The collection component includes a collection frame 404, a first filter element 405, a second filter element 406, and an opening / closing door 407. Three collection frames 404 are horizontally and movably arranged in the area of ​​the working frame 1. The collection frames 404 have a vertically continuous structure. The right collection frame 404 is located below the shrimp vein removal unit 103 and is used to collect shrimp veins and other impurities. The middle collection frame 404 is located below the shrimp meat picking unit 104 and is used to collect the peeled shrimp meat. The area to the left of the shrimp meat picking unit 104 serves as the shrimp shell shedding area. The left collection frame 404 is located below the shrimp shell shedding area and is used to collect shrimp shells. The lower side of each collection frame 404 is detachably equipped with upper and lower layers of first filter elements 405. The first filter element 405 achieves two-stage filtration. The water accumulated in each collection frame 404 will flow into the water storage frame 1051 after being filtered by the first filter element 405. The upper side of the water storage frame 1051 is detachably equipped with upper and lower layers of second filter elements 406, which are used to filter the water flowing back from above. The filtered water mixes with the water pre-injected in the water storage frame 1051 to form circulating water for reuse. The front side wall of the working frame 1 is symmetrically equipped with an opening and closing door 407 corresponding to the position of the collection frame 404. The opening and closing door 407 is equipped with a common locking structure. When the locking structure is opened, the opening and closing door 407 can be opened at any time, which makes it easy to remove each collection frame 404 for cleaning and to replace or clean the first filter element 405 and the second filter element 406 to maintain the filtration effect and the quality of the circulating water.

[0046] When this device is needed, first set the running speed and interval of the drive motor 203 through the control panel 101, and connect the water valve 109 through the external water pipe to pre-fill the water storage frame 1051 with sufficient clean water. After filling with water, close the water valve 109. Then, start the drive motor 203, water pump 105, shrimp back opening unit 102, shrimp deveining unit 103, and shrimp meat picking unit 104 in sequence to put each actuator into the standby state. The operator places a single shrimp with its back facing up. The initial feeding action is completed between the two clamping blocks 302 on the first support seat 301 on the upper layer of the conveyor belt 202. The conveyor belt 202 rotates under the drive of the drive motor 203 and the pulley 201, driving the clamping components and shrimp bodies to enter each processing station from left to right, realizing automated assembly line operation. When the T-shaped guide rod 306 moves with the support seat 301 to contact the inclined surface of its inclined surface with the inclined surface of the U-shaped abutment rod 401, the T-shaped guide rod 306 slides smoothly backward under the interaction of the inclined surfaces. The guide groove engages with the active protrusion 308, driving the turntable 304 to rotate. The turntable 304 then engages with the transmission groove on the transmission rod 305 via the passive protrusion 307, driving the two transmission rods 305 to move inward synchronously. This causes the clamping blocks 302 to move closer together and clamp the shrimp body. The clamping spring 303 is then compressed and stores force. When the T-shaped guide rod 306 passes the inclined surface of the U-shaped abutment 401, the U-shaped abutment 401 continues to abut against the T-shaped guide rod 306, keeping the clamping blocks 302 in a constant clamping position. To ensure the shrimp remains stable and consistent in position during subsequent transport and multi-process processing, and to accommodate the size differences between different batches of shrimp, operators can rotate the threaded rocker 403 in both directions to cause the threaded sleeve 402 to move the U-shaped abutment 401 in the front-to-back direction. This allows for precise adjustment of the contact stroke between the U-shaped abutment 401 and the T-shaped guide rod 306, thereby controlling the clamping displacement of the clamping block 302. This achieves flexible and adjustable clamping force, which can firmly fix the shrimp while avoiding excessive clamping force that could damage the shrimp meat.

[0047] As the shrimp continues to be conveyed to the right by conveyor belt 202 to the shrimp back-opening unit 102, the rotating disc cutter, under the action of the elastic floating unit, adaptively presses against the shrimp's back and floats up and down in real time according to the shrimp's thickness, precisely controlling the cutting depth—only cutting open the shrimp shell without damaging the internal shrimp meat, completing the shrimp back opening process. After opening, the shrimp continues to move forward with conveyor belt 202, turning at the upper level and entering the lower conveying path with its back facing down. The conveying direction changes from right to left, smoothly connecting to the subsequent process. When the shrimp is conveyed to the shrimp vein removal unit 103, the rotating hook scraper, under the action of the second elastic floating unit, precisely extends into the opening at the shrimp's back and floats adaptively according to the shrimp's shape, completely hooking out the shrimp vein through the rotating hook scraping action. The shrimp vein is scraped off, completing the deveining process. The scraped-off shrimp vein falls downward into the right collection box 404 under the action of gravity, realizing the immediate separation and collection of waste. Subsequently, the shrimp body continues to be conveyed to the left to the shrimp meat picking unit 104. The drive motor drives multiple sets of picking needle swing arms to perform synchronous periodic reciprocating swings through the transmission mechanism. When the shrimp body is in place, the picking needle swing arm swings downward, and its picking needle head extends into the opening on the shrimp back, applying downward force to the shrimp meat. Because the shrimp shell and shrimp head are clamped and limited by the clamping block 302, the shrimp meat is picked down by the picking needle swing arm, realizing the complete separation of shrimp meat and shrimp shell. The picked shrimp meat falls into the middle collection box 404. After the meat is picked up, the picking needle swing arm swings upward to reset, and the empty shrimp shell is conveyed to the left by the conveyor belt 202.

[0048] Throughout the process of the shrimp sequentially passing through the shrimp back-opening unit 102, the shrimp vein removal unit 103, and the shrimp meat extraction unit 104, the water pump 105 continuously pumps water from the water storage frame 1051 through the water pumping pipe 106 to the diversion pipe 107. The diversion pipe 107 then distributes the water to each spray pipe 108. The inclined nozzles spaced along the length of the inner wall of the spray pipe 108 are directed towards the left and right sides of the shrimp back-opening unit 102 and the shrimp vein removal unit 103, achieving precise positioning and water spraying to promptly remove shrimp shell fragments, shrimp vein residue, and adhering tissue generated during processing. This effectively prevents the accumulation of residue on the cutting blade and scraper, ensuring the processing is safe and efficient. The cleanliness and sharpness of the cutting edge significantly extend the service life of the cutting tool. The sprayed water carries impurities and falls downwards, undergoing two-stage filtration through the first filter element 405 in the upper and lower layers of the collection frame 404, and further fine filtration through the second filter element 406 before flowing back into the water storage frame 1051. There, it mixes with pre-injected clean water to form circulating water, which is then pumped back into use by the water pump 105. This circulating rinsing structure not only saves water resources significantly and reduces production costs, but also ensures the cleanliness of the rinsing water through a multi-stage filtration system, making the rinsing effect lasting and stable. At the same time, it avoids the accumulation of residue inside the equipment, which would affect processing accuracy and hygiene safety.

[0049] After the shrimp meat removal process is completed, the T-shaped guide rod 306 continues to move to the left with the conveyor belt 202, gradually disengaging from the U-shaped abutment rod 401. Once completely disengaged, the clamping spring 303 elastically rebounds and resets, pushing the clamping block 302 outwards to release the shrimp shells. The shrimp shells fall downwards into the left-side collection frame 404. Simultaneously, the clamping block 302 drives the transmission rod 305 outwards, which in turn drives the turntable 304 to rotate in the opposite direction, thereby causing the T-shaped guide rod 306 to move forward and reset. All components synchronously return to their initial positions, and the unloaded clamping assembly continues to run with the conveyor belt 202, restarting... Returning to the feeding area, the shrimp await the next feeding. Throughout the cycle, shrimp are continuously fed to each support 301 at intervals and in an orderly rhythm, completing the entire process of clamping, back opening, shrimp vein removal, rinsing, meat picking, and shelling in sequence. Each workstation works in parallel and collaboratively, achieving continuous batch processing and significantly improving production efficiency. At the same time, the opening and closing door 407 on the front side of the working frame 1 can be opened at any time, making it easy to remove and clean each collection frame 404, and replace or clean the first filter element 405 and the second filter element 406 to maintain the filtration effect and circulating water quality, ensuring the long-term stable operation of the equipment.

[0050] Example 2: Based on Example 1, such as Figure 1 , Figure 2 , Figure 3 , Figure 15 and Figure 16As shown, it also includes a feeding assembly, which is located on the top left side of the working frame 1. The feeding assembly includes a worktable 501, a feeding cylinder 502, a first electric slide rail 504, a discharge chute 505, a second electric slide rail 506, a pusher 507, and a stopper 508. The worktable 501 is fixedly installed on the top of the working frame 1 at the left side of the conveyor belt 202. The feeding cylinder 502 is movably installed on the top of the worktable 501. The first electric slide rail 504 is installed on the left side wall of the inner left side of the working frame 1 at the left side of the worktable 501. The left side wall of the worktable 501 is connected to the first electric slide rail by a slider. A sliding connection 504 is used. Multiple vertically connected feeding troughs 503 are equidistantly spaced along the front-to-back direction inside the feeding cylinder 502 for vertically stacking shrimp. A discharge trough block 505 is horizontally fixedly connected to the center of the workbench 501. The bottom left side of the discharge trough block 505 is a closed structure, and the bottom right side is an open structure that runs vertically through the cylinder. This open structure is aligned with the first support seat 301 on the upper layer of the conveyor belt 202. The width of the inner groove of the discharge trough block 505 is adapted to the width of a single feeding trough 503, and the height of the inner groove can only accommodate a single shrimp. When the feeding troughs 503 of the feeding cylinder 502 are vertically aligned with the discharge trough block 505... The shrimp at the bottom of the feeding trough 503 falls into the inner groove of the discharging trough block 505 under gravity. A second electric slide rail 506 is installed on the front side wall of the discharging trough block 505. A pusher 507 is slidably connected in the inner groove of the discharging trough block 505 along the left and right direction. The pusher 507 has a U-shaped structure. When it is in the inner groove of the discharging trough block 505, the U-shaped opening covers the outside of the shrimp. The pusher 507 is slidably connected to the second electric slide rail 506 through a slider. A stop 508 is fixedly connected to the top left side of the pusher 507. The stop 508 slides through the left side wall of the working frame 1 and is connected to the second electric slide rail 506 through the second electric slide rail 506. 06 drives the slider to move the pusher 507 and the stopper 508 to the right in sync. The pusher 507 pushes the shrimp in the inner groove of the discharge trough 505 to the right until the shrimp fall from the open structure on the right side of the discharge trough 505 into the space between the two clamping blocks 302 on the first support 301, completing a single automatic feeding. The first electric slide rail 504 and the second electric slide rail 506 are both electrically connected to the control panel 101. The operation interval time of the second electric slide rail 506 is set through the control panel 101 to coordinate with the adjustment of the feeding rhythm of the feeding component, so as to achieve coordinated control with the stepping motion of the conveyor belt 202.

[0051] When the device is put into operation, the operator first stacks the shrimp to be processed back-up, head-to-tail, in the feeding slots 503 of the feeding cylinder 502, ensuring that the number of shrimp stacked in each feeding slot 503 is consistent, thus completing the batch preparation. Then, the operation interval time of the second electric slide rail 506 is set through the control panel 101, so that the feeding action is precisely coordinated with the intermittent operation rhythm of the conveyor belt 202, ensuring that each feeding corresponds to the arrival time of the empty support 301. When feeding starts, the first feeding slot 503 in the feeding cylinder 502 is vertically aligned with the discharge slot block 505, and the shrimp at the bottom of the feeding slot 503... Under the influence of gravity, the shrimp automatically falls into the inner groove of the discharge trough block 505. Because the bottom left side of the discharge trough block 505 is closed and the right side is open, the shrimp is confined within the inner groove and kept in a horizontal position to be pushed. Subsequently, the second electric slide rail 506 drives the slider to move the pusher 507 and the stop 508 to the right in sync. The pusher 507 wraps around the outside of the shrimp with its U-shaped structure, smoothly pushing the shrimp in the inner groove to the right. When the shrimp moves to the open structure on the right side of the discharge trough block 505, it falls precisely between the two clamping blocks 302 on the first support seat 301 on the upper layer of the conveyor belt 202 under the influence of gravity, completing the automatic feeding. At the same time, the stop... As the pusher 507 moves to the right, component 508 precisely blocks the bottom outlet of the feeding trough 503, effectively preventing other shrimp from accidentally falling during the pushing process and avoiding excessive or jammed material. After a single push is completed, the second electric slide rail 506 drives the slider to move in the opposite direction, causing the pusher 507 and the stopper 508 to move to the left and reset synchronously. After the stopper 508 disengages from the bottom outlet of the feeding trough 503, the shrimp in the feeding trough 503 move down one level, and a new shrimp at the bottom falls back into the inner groove of the discharge trough block 505, waiting for the next push command. This cycle repeats, allowing each shrimp in the same feeding trough 503 to be pushed down one by one. The feeding process is orderly and intermittent. After all the shrimp in the feeding trough 503 have been fed, the first electric slide rail 504 drives the feeding cylinder 502 to move forward one position precisely through the slider, so that the next feeding trough 503 full of shrimp is vertically aligned with the discharge trough block 505 again, and the feeding and pushing cycle continues. This realizes the automatic switching and continuous feeding of multiple feeding troughs 503 in the feeding cylinder 502. During the entire feeding process, the first electric slide rail 504 and the second electric slide rail 506 are uniformly controlled by the control panel 101. Through preset timing logic, the feeding rhythm is ensured to be accurately matched with the stepping rhythm of the conveyor belt 202.

[0052] like Figure 4 , Figure 8 , Figure 9 and Figure 10As shown, it also includes a shaking component. The shaking component is located on the rear side wall of the working frame 1. The shaking component includes an elliptical disk 601, a transmission component 602, a lifting frame 603, and a top component 604. The elliptical disk 601 is rotatably connected to the right side of the rear side wall of the working frame 1 via a rotating shaft. The lifting frame 603 is vertically slidably connected to the lower inner wall of the working frame 1. A groove is formed on the inner circumference of the lifting frame 603. Bosses are provided on the bottom inner circumference of the three collection frames 404 corresponding to the grooves. The collection frames 404 are fixedly engaged with the grooves on the lifting frame 603 via the bottom bosses. The top component 604 is fixedly connected to the rear side wall of the lifting frame 603. A clearance groove is provided at the position of the top part 604. The top part 604 extends outward from the clearance groove and is aligned with the elliptical disk 601. A sliding groove is provided along the outer periphery of the rear side wall of the elliptical disk 601. The upper end of the top part 604 forms a sliding engagement with the sliding groove. A transmission assembly 602 is assembled between the rear end of the main shaft of the left pulley 201 and the rotating shaft of the elliptical disk 601. The transmission assembly 602 consists of two transmission wheels and a transmission belt. The two transmission wheels are respectively fixedly installed on the rear end of the main shaft of the left pulley 201 and the rotating shaft of the elliptical disk 601. The transmission belt is wound between the two transmission wheels to transmit the power of the drive motor 203 to the elliptical disk 601.

[0053] In continuous operation, the left pulley 201 rotates with the output shaft of the drive motor 203, driving the elliptical disk 601 to rotate around its axis via the transmission assembly 602. The elliptical disk 601 forms a sliding engagement with the top component 604 through its own groove. When the elliptical disk 601 rotates, the distance between its elliptical profile and the axis changes periodically, causing the groove position to shift vertically. This periodic displacement is then transmitted to the lifting frame 603 via the top component 604. The lifting frame 603 is constrained by the vertical sliding limit of the inner lower region wall of the working frame 1, and can only reciprocate in the vertical direction. Therefore, for each rotation of the elliptical disk 601, the lifting frame 603 completes one complete upward and downward stroke. The three collection frames 404 are fixed by the bottom boss and the groove on the inner circumference of the lifting frame 603. Therefore, the vertical reciprocating motion of the lifting frame 603 directly drives the three collection frames 404 to achieve synchronous lifting and shaking. This shaking effect plays multiple roles during the operation of the device: firstly... Firstly, the up-and-down shaking of the collection frame 404 causes the water inside the frame to vibrate, accelerating the filtration speed of the water through the first filter element 405, effectively improving the solid-liquid separation efficiency, and allowing solid materials such as shrimp shells, shrimp veins, and shrimp meat to be quickly separated from the rinsing water, preventing water from stagnating in the collection frame 404 for a long time and affecting the filtration effect. Secondly, the continuous shaking causes the solid materials accumulated on the surface of the first filter element 405 to generate high-frequency micro-movements, preventing the materials from clogging the filter mesh due to gravity compaction, significantly reducing the risk of clogging of the first filter element 405, extending the continuous effective time of a single filtration operation, and reducing the frequency of manual cleaning. Thirdly, the lifting frame 603 drives the three collection frames 404 to shake synchronously, ensuring that the materials in each collection frame 404 can receive uniform shaking treatment, avoiding overflow or material cross-flow due to local blockage. After the device stops, the elliptical disk 601 stops rotating, the lifting frame 603 stops shaking, and each collection frame 404 is stationary, making it convenient for operators to unload and clean and maintain the materials through the opening and closing door 407.

[0054] like Figure 8 , Figure 9 and Figure 17As shown, it also includes a swing assembly. The swing assembly is mounted on the main shaft of the right-side pulley 201. The swing assembly includes a transmission disc 701, a lifting rod 702, a protruding rod 703, and a swing rod 704. The main shaft of the right-side pulley 201 rotates and extends to the rear side of the working frame 1, and is fixedly connected to the transmission disc 701. The lower end of the rear side wall of the transmission disc 701 is fixedly connected to the protruding rod 703. The protruding rod 703 is offset from the rotation axis of the transmission disc 701. The lifting rod 702 is a vertical long rod structure. Its upper and lower ends extend to the upper and lower diversion pipe 107 areas respectively. The middle part of the lifting rod 702 is provided with a mating groove 705. The lifting rod 702 is movably engaged with the protruding rod 703 of the transmission disc 701 through the mating groove 705. The upper and lower ends of the lifting rod 702 are respectively provided with movable grooves 706 symmetrically on the left and right. Each movable groove 706 is movably connected with a swing rod 704. The swing rods 704 are all fixedly connected to the nozzle 108 pipe body on the corresponding side.

[0055] During continuous operation of the device, the main shaft of the right-side pulley 201 rotates continuously under the drive of the drive motor 203. The transmission disc 701 fixed on it rotates around its own axis. The protruding rod 703, fixed to the lower end of the rear side wall of the transmission disc 701 and offset from the axis, moves in a circular trajectory around the axis. The protruding rod 703 slides back and forth in the mating groove 705 in the middle of the lifting rod 702, converting the rotational motion into the smooth reciprocating lifting of the lifting rod 702 in the vertical direction. The movable grooves 706 at the upper and lower ends of the lifting rod 702 move synchronously with the lifting rod 702. The swing rods 704 movably connected in each movable groove 706 generate a horizontal reciprocating pushing and pulling action under the vertical displacement drive. Since the swing rods 704 are fixedly connected to the corresponding nozzle 108, and the nozzle 108 is sealed and rotatedly assembled on the left and right branches of the diverter pipe 107 by a sealing ring, it has the function of rotating around the diverter pipe. With the freedom of rotation of axis 107, under the pushing and pulling action of swing rod 704, nozzle 108 uses the branch pipe section of diverter pipe 107 as the fulcrum of rotation, and generates a reciprocating swing rotation in the up and down direction. This swinging action causes the inclined nozzles on the inner wall of nozzle 108 to continuously change the elevation and depression angles of the water flow during the spraying process, forming a dynamic sweeping effect, which significantly expands the effective rinsing coverage area of ​​a single spray. The sprayed water flow can perform all-round, no-dead-angle rinsing on the rotating disc cutter, blade holder and surrounding area of ​​shrimp back opening unit 102, as well as the rotating hook scraper and extended blade of shrimp devein unit 103 and other core working components from different angles, effectively preventing the accumulation of shrimp shell fragments, shrimp vein residue and adhering tissue on the blade edge and surface, ensuring that each processing unit is always kept clean, thereby ensuring the continuous and accurate execution of the back opening and shrimp deveining process.

[0056] like Figure 2As shown, it also includes a protective shell 1010. The protective shell 1010 is installed on the rear side wall of the working frame 1. All exposed components on the rear side wall of the working frame 1 are housed inside the protective shell 1010 and protected by it. The exposed components include a shaking component, a drive motor 203, a water pumping pipe 106, a diversion pipe 107, and a swing component. The protective shell 1010 is used to isolate the external environment, prevent foreign objects from entering and prevent operators from accidentally touching moving parts. It also has splash-proof and dust-proof functions to ensure the safe operation and long-term stability of the equipment.

[0057] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A shrimp-peeling device with a circulating water rinsing structure, characterized in that, include: The working frame (1) is provided with a conveying assembly for conveying shrimp bodies; A shrimp back opening unit (102) is disposed on the working frame (1) and is used to form an opening on the back of the shrimp body; A shrimp vein removal unit (103) is disposed on the working frame (1) and is used to remove the shrimp vein; The shrimp meat picking unit (104) is set on the working frame (1) and is used to separate the shrimp meat from the shrimp shell; A clamping component, disposed on the conveying component, is used to clamp the shrimp body; The rinsing assembly includes a water storage frame (1051) located below the working frame (1) for storing circulating water, a water pump (105) located in the water storage frame (1051), a water pump (106) connected to the water outlet of the water pump (105), a diversion pipe (107) connected to the water pump (106), and a spray pipe (108) located on the diversion pipe (107). The nozzle of the spray pipe (108) faces the shrimp back opening unit (102) and the shrimp devein unit (103). The water pump (105) transports the water in the water storage frame (1051) through the water pump (106) and the diversion pipe (107) to the spray pipe (108) for spraying. The sprayed water flows back into the water storage frame (1051) for recycling. The control panel (101), the shrimp back opening unit (102), the shrimp devein unit (103), the shrimp meat picking unit (104), and the water pump (105) are all electrically connected to the control panel (101).

2. The shrimp peeling device with a circulating water rinsing structure according to claim 1, characterized in that, The diversion pipe (107) has multiple branches, and each branch is provided with a nozzle (108). The inner wall of the nozzle (108) is provided with a number of nozzles spaced apart along the length direction. The nozzles of the multiple nozzles (108) are respectively facing the shrimp back opening unit (102) and the shrimp de-line unit (103) on both sides.

3. The shrimp peeling device with a circulating water rinsing structure according to claim 2, characterized in that, The conveying assembly includes pulleys (201), a conveyor belt (202), and a drive motor (203). There are two pulleys (201) rotatably connected to both sides of the working frame (1). The conveyor belt (202) is wound around the two pulleys (201). The drive motor (203) is mounted on the working frame (1), and the output shaft of the drive motor (203) is connected to the pulleys (201) for transmission. The drive motor (203) is electrically connected to the control panel (101). There are multiple clamping assemblies, which are arranged at intervals along the length of the conveyor belt (202).

4. A shrimp peeling device with a circulating water rinsing structure according to claim 3, characterized in that, The clamping assembly includes a support base (301) disposed on the conveyor belt (202) and two clamping blocks (302) disposed on the support base (301). The two clamping blocks (302) can move closer or further apart to clamp or release the shrimp body. A clamping spring (303) is provided between the two clamping blocks (302).

5. A shrimp peeling device with a circulating water rinsing structure according to claim 4, characterized in that, The clamping assembly further includes a pushing assembly for driving the clamping blocks (302) to move. The pushing assembly includes a U-shaped abutment (401) disposed on the working frame (1) and a transmission component disposed on the support base (301). When the support base (301) moves with the conveyor belt (202) to abut against the U-shaped abutment (401), the transmission component responds to the push of the U-shaped abutment (401) and drives the two clamping blocks (302) to move closer to each other to clamp the shrimp body.

6. A shrimp peeling device with a circulating water rinsing structure according to claim 5, characterized in that, The transmission components include a turntable (304), a transmission rod (305), a T-shaped guide rod (306), a passive protrusion (307), and an active protrusion (308). The turntable (304) is rotatably connected to the support base (301). The transmission rod (305) is fixedly connected to the clamping block (302) and has a transmission groove. The passive protrusion (307) is located on the turntable (304) and is engaged in the transmission groove. The T-shaped guide rod (306) is slidably mounted on the support base (301). The T-shaped guide rod (306) has a guide groove. The active protrusion (308) is located on the turntable (304) and is inserted into the guide groove. The end of the T-shaped guide rod (306) and the U-shaped abutment rod (401) form a pushing relationship. When the T-shaped guide rod (306) is pushed by the U-shaped abutment rod (401), the active protrusion (308) drives the turntable (304) to rotate, and then the passive protrusion (307) and the transmission groove drive the two clamping blocks (302) to move closer to each other.

7. A shrimp peeling device with a circulating water rinsing structure according to claim 6, characterized in that, It also includes a collection component, which is set inside the working frame (1). The collection component includes multiple collection frames (404). The area located on the side of the shrimp meat picking unit (104) serves as the shrimp shell shedding area. Each collection frame (404) is respectively set below the shrimp vein removal unit (103), the shrimp meat picking unit (104), and the shrimp shell shedding area, and is used to collect shrimp vein, shrimp meat, and shrimp shell respectively. The collection component also includes a first filter element (405) and a second filter element (406). The first filter element (405) is set inside the collection frame (404), and the second filter element (406) is set inside the water storage frame (1051). The first filter element (405) and the second filter element (406) are a multi-stage filtration structure with upper and lower layers. The water filtered by the first filter element (405) and the second filter element (406) flows back to the water storage frame (1051).

8. A shrimp peeling device with a circulating water rinsing structure according to claim 7, characterized in that, It also includes a feeding component, which is set on the working frame (1) and located at the input end of the conveying component. The feeding component includes a feeding cylinder (502) and a discharge trough block (505). The feeding cylinder (502) is provided with a feeding trough (503) for accommodating shrimp bodies. The discharge trough block (505) is set on the working frame (1) at a position corresponding to the lower part of the feeding cylinder (502). The inner groove of the discharge trough block (505) is connected to the feeding trough (503) and can only accommodate a single shrimp body. The inner groove of the discharge trough block (505) is provided with a pusher (507) for pushing the shrimp body from the discharge trough block (505) to the clamping component.

9. A shrimp peeling device with a circulating water rinsing structure according to claim 8, characterized in that, It also includes a swing assembly, which includes a transmission disc (701), a lifting rod (702), and a swing rod (704). The transmission disc (701) is linked to the conveying assembly and is mounted on the pulley (201) on one side. A protruding rod (703) is connected to the transmission disc (701) at a position offset from its rotation axis. The lifting rod (702) is a long rod-shaped structure and has a mating groove (705). The lifting rod (702) is movably engaged with the mating groove (705) by the protruding rod (703) for support and installation. At least one end of the lifting rod (702) is provided with a movable groove (706). The lifting rod (702) is movably connected to the swing rod (704) through the movable groove (706). The swing rod (704) is fixedly connected to the nozzle (108). When the transmission disc (701) rotates with the pulley (201), the lifting rod (702) is driven to reciprocate through the cooperation of the protrusion (703) and the mating groove (705). In turn, the nozzle (108) is driven to swing back and forth through the swing rod (704) to change the water spray angle.

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