Tunnel-type shower for livestock

Abstract

This utility model discloses a tunnel-type livestock spray scalding machine, relating to the technical field of scalding machines. It includes: a tunnel-type spray frame; a liquid outlet located at the bottom of the tunnel-type spray frame; a filter box located at the bottom of the liquid outlet; a quick-release mechanism located on one side of the filter box and cooperating with the tunnel-type spray frame for quick disassembly of the filter box; a water storage tank located at the bottom of the filter box; several oscillating nozzles symmetrically arranged on the inner wall of the tunnel-type spray frame for spraying and scalding livestock; and a water pump symmetrically arranged at the bottom of the water storage tank and connected to the oscillating nozzles via an inlet pipe. This utility model effectively avoids localized overscalding through uniform and controllable all-around spraying, improving dehairing efficiency and livestock surface quality. Simultaneously, the convenient replacement and cleaning of the filter box effectively blocks impurities, ensuring the quality of the water circulation system and the stability of equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of scalding machine technology, specifically to a tunnel-type livestock spray scalding machine. Background Technology

[0002] Scalding machines are key equipment in livestock and poultry slaughtering and processing production lines. They are mainly used to loosen the hair follicles and soften the keratin on the surface of livestock by spraying or soaking them with high-temperature hot water before slaughtering, bleeding, and dehairing. This creates conditions for efficient and thorough hair removal in the subsequent process. It is a core piece of equipment to ensure slaughtering and processing efficiency and product hygiene quality.

[0003] Currently, tunnel-type spray scalding machines still commonly use fixed fan-shaped nozzles as the primary spraying method. Limited by the fixed spray angle of these nozzles, to avoid creating spray dead zones on the livestock's surface, the equipment must densely arrange a large number of nozzles along the axial and radial directions within the tunnel. This not only significantly increases the equipment's manufacturing cost, but more importantly, the fan-shaped spray areas of adjacent nozzles inevitably overlap. This results in the livestock's surface in the overlapping areas actually receiving heat far exceeding the set scalding temperature, causing localized overscalding problems.

[0004] Excessive heat can further damage the animal's cuticle, leading to skin breakage and hair loss during subsequent hair removal processes. Furthermore, excessive heat can cause over-coagulation of the connective tissue around the hair follicles, reducing hair removal efficiency and resulting in incomplete hair removal, often requiring secondary manual processing, thus impacting overall production efficiency and product quality.

[0005] Furthermore, most existing spray scalding equipment lacks efficient water circulation and purification mechanisms. During the spraying process, impurities such as hair, dander, and grease shed from the livestock's body directly mix into the circulating water, easily tangling and forming flocculent matter that clogs pipes and nozzles. This not only increases maintenance frequency and affects operational stability but also makes the wastewater after cleaning difficult to reuse due to severe pollution, resulting in a significant waste of water resources.

[0006] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0007] In view of the problems in the related technologies, this utility model proposes a tunnel-type livestock spray scalding machine to overcome the above-mentioned technical problems existing in the existing related technologies.

[0008] Therefore, the specific technical solution adopted by this utility model is as follows: A tunnel-type livestock spray scalding machine includes: a tunnel-type spray frame; a liquid outlet located at the bottom of the tunnel-type spray frame; a filter box located at the bottom of the liquid outlet; a quick-release mechanism located on one side of the filter box and cooperating with the tunnel-type spray frame for quick disassembly of the filter box; a water storage tank located at the bottom of the filter box; several oscillating nozzles symmetrically arranged on the inner wall of the tunnel-type spray frame for spraying and scalding livestock; and a water pump symmetrically arranged at the bottom of the water storage tank and connected to the several oscillating nozzles via a water inlet pipe.

[0009] Furthermore, to prevent impurities shed from the livestock during spraying from directly mixing into the water through rapid filter box replacement and cleaning, thus preventing the formation of flocculent material that could clog pipes and nozzles, improving the operational stability of the scalding machine, and ensuring the quality and efficiency of water circulation, a quick-release mechanism includes fixed seats symmetrically arranged on one side of the tunnel-type spray frame. Springs are symmetrically arranged at both ends of one side of each fixed seat, and each spring is connected to an arc-shaped pressure plate. One arc-shaped pressure plate has a first arc-shaped clamping plate on its inner wall, and the other arc-shaped pressure plate has... The first and second arc-shaped plates are movably connected at their bottoms via a movable shaft. The quick-release mechanism also includes circular locking blocks symmetrically arranged on one side of the filter box, which mate with the inner walls of the first and second arc-shaped plates. The outer circumference of the top two sides of the circular locking blocks are symmetrically provided with slots that mate with the tops of the first and second arc-shaped plates. The tops of the first and second arc-shaped plates are both set as arc-shaped surfaces, and the cross-section of the slots is set as an arc-shaped structure that mates with the arc-shaped surfaces.

[0010] Furthermore, to ensure more even water coverage of the livestock, controllable and comprehensive spraying, and to prevent overheating due to localized water concentration, thereby improving subsequent dehairing efficiency and guaranteeing livestock quality, several oscillating nozzles are linearly arranged on the inner wall of the tunnel-type spray frame. Each oscillating nozzle includes a reversing seat located at the outlet of the inlet pipe, a spray housing at the top of the reversing seat, and a main spray hole on one side of the top of the spray housing. A rocker arm assembly is located at the top of the spray housing, with a return spring fitted on the outer side of the rocker arm assembly. A left and right stop pin, cooperating with the rocker arm assembly, are fitted on the outer side of the reversing seat. The rocker arm assembly includes a rocker arm shaft at the top of the spray housing. One end of the rocker arm shaft has a rocker arm head that mates with the main spray hole, and another end has a striking block that mates with the spray housing. A reversing lever, cooperating with the left and right stop pins, is located on one side of the rocker arm shaft.

[0011] The beneficial effects of this utility model are as follows: 1) With the combined action of the tunnel-type spray frame, filter box, quick-release mechanism, water storage tank, swing nozzle, water pump and water inlet pipe, this utility model can effectively avoid local overheating through uniform and controllable all-round spraying, improve the hair removal efficiency and the quality of the livestock's body surface. At the same time, with the help of convenient replacement and cleaning of the filter box, impurities are effectively blocked, ensuring the quality of the water circulation system and the stability of equipment operation.

[0012] 2) With the combined action of the tunnel-type spray frame, filter box, quick-release mechanism, water storage tank, water pump and water inlet pipe, the filter box can be quickly replaced and cleaned to prevent impurities that fall off the surface of the livestock during the spraying process from directly mixing into the water, preventing the formation of flocculent matter that may clog the pipes and nozzles, thus improving the operational stability of the scalding machine and ensuring the quality and efficiency of water circulation.

[0013] 3) With the combined action of the tunnel-type spray frame, swing nozzles, water pump and water inlet pipe, the water flow can cover the surface of the livestock more evenly, the spray range is controllable and comprehensive, avoid local water flow concentration that causes overheating, improve the efficiency of subsequent hair removal and ensure the quality of the livestock. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a tunnel-type livestock spray scalding machine according to an embodiment of the present utility model; Figure 2 yes Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a cross-sectional schematic diagram of a tunnel-type livestock spray scalding machine according to an embodiment of the present utility model; Figure 4 yes Figure 3 A magnified view of a section at point B in the middle; Figure 5 This is a schematic diagram of the structure of the oscillating nozzle in a tunnel-type livestock spray scalding machine according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the oscillating component in a tunnel-type livestock spray scalding machine according to an embodiment of the present utility model; Figure 7 This is a partial structural schematic diagram of a tunnel-type livestock spray scalding machine according to an embodiment of the present utility model.

[0016] In the picture: 1. Tunnel-type spray frame; 2. Liquid outlet; 3. Filter box; 4. Quick-release mechanism; 401. Fixed base; 402. Spring; 403. Arc-shaped pressure plate; 404. First arc-shaped clamping plate; 405. Second arc-shaped clamping plate; 406. Movable shaft; 407. Circular clamping block; 408. Slot; 5. Water storage tank; 6. Swinging nozzle; 601. Reversing seat; 602. Spray housing; 603. Main spray hole; 604. Rocker arm assembly; 6041. Rocker arm shaft; 6042. Rocker arm head; 6043. Strike block; 6044. Reversing lever; 605. Return spring; 606. Left stop pin; 607. Right stop pin; 7. Water pump; 8. Water inlet pipe. Detailed Implementation

[0017] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0018] According to an embodiment of the present invention, a tunnel-type livestock spray scalding machine is provided.

[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-7 As shown, the tunnel-type livestock spray scalding machine according to an embodiment of the present invention includes: a tunnel-type spray frame 1; a liquid outlet 2 disposed at the bottom of the tunnel-type spray frame 1; a filter box 3 disposed at the bottom of the liquid outlet 2; a quick-release mechanism 4 disposed on one side of the filter box 3 and cooperating with the tunnel-type spray frame 1 for quick disassembly of the filter box 3; a water storage tank 5 disposed at the bottom of the filter box 3; a plurality of swing nozzles 6 symmetrically disposed on the inner wall of the tunnel-type spray frame 1 for spraying and scalding livestock; and a water pump 7 symmetrically disposed at the inner bottom of the water storage tank 5 and connected to the plurality of swing nozzles 6 through a water inlet pipe 8.

[0020] By utilizing the aforementioned technical solution, this utility model, through the coordinated action of the tunnel-type spray frame 1, filter box 3, quick-release mechanism 4, water storage tank 5, oscillating nozzle 6, water pump 7, and water inlet pipe 8, effectively avoids localized overheating by providing uniform and controllable comprehensive spraying, thereby improving hair removal efficiency and the quality of livestock skin. Simultaneously, the convenient replacement and cleaning of the filter box 3 effectively blocks impurities, ensuring the quality of the water circulation system and the stability of equipment operation. The tunnel-type spray frame 1, filter box 3, quick-release mechanism 4, water storage tank 5, water pump 7, and water inlet pipe 8... With the combined action of the filter box 3, the impurities that fall off the animal's body during the spraying process are prevented from directly mixing into the water, thus preventing the formation of flocculent matter that could clog pipes and nozzles. This improves the operational stability of the scalding machine and ensures the quality and efficiency of water circulation. The combined action of the tunnel-type spray frame 1, the oscillating nozzles 6, the water pump 7, and the inlet pipe 8 allows for a more even water flow covering the animal's body. The spraying range is controllable and comprehensive, avoiding localized water concentration that could lead to overscalding. This improves subsequent dehairing efficiency and ensures the quality of the livestock.

[0021] It should be noted that this tunnel-type livestock spray scalding machine needs to be used in conjunction with a suspended conveyor chain (not shown in the figure) for scalding operations. The suspended conveyor chain is a common technical means in this field and will not be described in detail here.

[0022] In addition, both ends of the tunnel-type sprinkler frame 1 need to be equipped with baffles (not shown in the figure) to prevent hot water from splashing and causing injury to the operators. Baffles are a common technical means in this field and will not be described in detail here.

[0023] In one embodiment, the quick-release mechanism 4 includes a fixed base 401 symmetrically arranged on one side of the tunnel-type spray frame 1. Springs 402 are symmetrically arranged at both ends of one side of the fixed base 401, and each spring 402 is connected to an arc-shaped pressure plate 403 on one side. A first arc-shaped clamping plate 404 is provided on the inner wall of one of the arc-shaped pressure plates 403, and a second arc-shaped clamping plate 405 is provided on the inner wall of the other arc-shaped pressure plate 403. The bottoms of the first arc-shaped clamping plate 404 and the second arc-shaped clamping plate 405 are movably connected by a movable shaft 406. The quick-release mechanism 4 also includes circular clamping blocks 407 symmetrically arranged on one side of the filter box 3. The circular clamping blocks 407 are connected to the first arc-shaped clamping plate 405. The inner walls of the arc-shaped card plate 404 and the second arc-shaped card plate 405 are matched; the outer walls of the top two sides of the circular card block 407 are symmetrically provided with slots 408 that match the top of the first arc-shaped card plate 404 and the top of the second arc-shaped card plate 405; the top of the first arc-shaped card plate 404 and the top of the second arc-shaped card plate 405 are both set as arc-shaped surfaces, and the cross-section of the slot 408 is set as an arc-shaped structure that matches the arc-shaped surface. Thus, by quickly replacing and cleaning the filter box 3, impurities that fall off the surface of the livestock during the spraying process are prevented from directly mixing into the water, preventing the formation of flocculent matter that clogs the pipes and nozzles, improving the operational stability of the scalding machine, and ensuring the quality and efficiency of water circulation.

[0024] The working principle of the quick-release mechanism 4 is as follows: In the initial state, when the filter box 3 needs to be installed, the operator slides the filter box 3 into the space between the tunnel spray frame 1 and the water storage tank 5 by using the handle on one side of the filter box 3. When the bottom circumferential side wall of the circular locking block 407 on one side of the filter box 3 contacts the top of the first arc-shaped locking plate 404 and the top arc-shaped locking plate 405, the first arc-shaped locking plate 404 and the second arc-shaped locking plate 405 move outward around the movable shaft 406 under pressure. The outward movement of the first arc-shaped locking plate 404 and the second arc-shaped locking plate 405 drives the arc-shaped pressure plates 403 on both sides to squeeze the spring 402, so that the angle between the top of the first arc-shaped locking plate 404 and the top of the second arc-shaped locking plate 405 gradually increases. When it increases to the diameter of the circular locking block 407... At this time, the circular locking block 407 will enter the interior of the first arc-shaped locking plate 404 and the second arc-shaped locking plate 405. When the bottom of the circular locking block 407 contacts the bottom of the first arc-shaped locking plate 404 and the bottom of the second arc-shaped locking plate 405, under the rebound action of the spring 402, the spring 402 drives the arc-shaped pressure plate 403 to move upward. The arc-shaped pressure plate 403 drives the top of the first arc-shaped locking plate 404 and the second arc-shaped locking plate 405 to move inward, so that the angle between the top of the first arc-shaped locking plate 404 and the top of the second arc-shaped locking plate 405 gradually decreases. When the arc-shaped surface of the top of the first arc-shaped locking plate 404 and the second arc-shaped locking plate 405 enters the locking groove 408, the inner wall of the first arc-shaped locking plate 404 and the second arc-shaped locking plate 405 locks the circular locking block 407, realizing the installation of the filter box 3.

[0025] When the filter box 3 needs to be disassembled for cleaning, the operator uses the handle of the filter box 3 to pull it out from the space between the tunnel-type spray frame 1 and the water storage tank 5. The filter box 3 causes the circular locking block 407 to be subjected to force, and then the outer circumference of the top of the circular locking block 407 presses against the inner top of the first arc-shaped locking plate 404 and the second arc-shaped locking plate 405, causing the first arc-shaped locking plate 404 and the second arc-shaped locking plate 405 to move outward around the movable shaft 406 as the rotation center. This causes the angle between the top of the first arc-shaped locking plate 404 and the top of the second arc-shaped locking plate 405 to gradually increase. When the angle increases to the size of the diameter of the circular locking block 407, the circular locking block 407 leaves the interior of the first arc-shaped locking plate 404 and the second arc-shaped locking plate 405, thus realizing the replacement and cleaning of the filter box 3.

[0026] In one embodiment, for the aforementioned swaying nozzles 6, a plurality of swaying nozzles 6 are linearly arranged on the inner wall of the tunnel-type spray frame 1; the swaying nozzle 6 includes a reversing seat 601 disposed at the outlet end of the water inlet pipe 8, a water spray housing 602 disposed at the top of the reversing seat 601, and a main spray hole 603 disposed on one side of the top of the water spray housing 602; a rocker arm assembly 604 disposed at the top of the water spray housing 602, and a return spring 605 sleeved on the outer side of the rocker arm assembly 604; a left stop pin 606 and a right stop pin 607 that cooperate with the rocker arm assembly 604 are sleeved on the outer side of the reversing seat 601; The arm assembly 604 includes a rocker arm shaft 6041 disposed at the top of the water spray housing 602; one end of the rocker arm shaft 6041 is provided with a rocker arm head 6042 that cooperates with the main spray hole 603, and the other end of the rocker arm shaft 6041 is provided with a striking block 6043 that cooperates with the water spray housing 602; a reversing lever 6044 that cooperates with the left stop pin 606 and the right stop pin 607 is provided on one side of the rocker arm shaft 6041, so that the water flow can cover the surface of the livestock more evenly, the spray range is controllable and comprehensive, avoids local water flow concentration leading to overheating, improves the efficiency of subsequent hair removal, and ensures the quality of the livestock.

[0027] The working principle of the swing nozzle 6 is as follows: In the initial state, under the action of the external controller, the water pump 7 is controlled and started. High-pressure hot water enters from the inlet pipe 8, passes through the reversing seat 601 and the spray housing 602 in sequence, and is sprayed out from the main nozzle 603, forming a high-speed jet. The high-speed jet hits the rocker head 6042 head-on, generating a lateral thrust. Under the action of the lateral thrust, the rocker head 6042 drives the rocker shaft 6041 to rotate outward. The return spring 605 is twisted and stored. When the rocker head 6042 leaves the jet area, the water force disappears, the return spring 605 is released, and the rocker assembly 604 swings back rapidly. Under the action of the rocker shaft 6041, the striking block 6043 hits the shoulder of the spray housing 602. The impact force causes the spray housing 602 to rotate relative to the fixed reversing seat 601 by a fixed small angle. The friction damping surface hidden in the reversing seat 601 immediately absorbs the inertia, and the housing stops. After the housing stops, The rocker arm head 6042 returns to the position facing the main nozzle 603 and repeats the process of water intake, swinging, flow separation, swinging back, striking, and braking. When the housing rotates to the left limit, that is, the reversing lever 6044 touches the left stop pin 606, the reversing lever 6044 lifts the rocker arm shaft 6041, causing the rocker arm head 6042 to lift away from the jet plane, thus ceasing to receive water and eliminating the striking force, and the housing stops rotating to the left. Similarly, when the housing rotates to the left limit, that is, the reversing lever 6044 touches the right stop pin 607, the reversing lever 6044 lifts the rocker arm shaft 6041, causing the rocker arm head 6042 to lift away from the jet plane, thus ceasing to receive water and eliminating the striking force, and the housing stops rotating to the right. This allows the nozzle to swing back and forth only between the left stop pin 606 and the right stop pin 607, forming a fan-shaped scalding area. By adjusting the positions of the left stop pin 606 and the right stop pin 607, the spray range of the swing nozzle 6 can be adjusted.

[0028] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0029] In practical application, under the control of an external controller, the operator places the animal carcass to be scalded into the tunnel-type spray frame 1 via a suspended conveyor chain. The external controller then controls and starts the water pump 7, allowing high-pressure hot water to enter through the inlet pipe 8. The hot water passes through the reversing seat 601 and the spray housing 602, and is then sprayed out from the main spray hole 603. With the coordinated action of the rocker arm assembly 604, the left stop pin 606, and the right stop pin 607, several swinging nozzles 6 swing and spray vertically, effectively scalding the animal. The animal carcass is scalded by spraying hot water (the working principle of the oscillating nozzle 6 is as described above). During the spraying process, hair, dander, grease and other impurities that fall off the animal's body enter the filter box 3 through the liquid outlet 2. After being filtered by the filter box 3, the water enters the water storage tank 5, forming a water cycle. When it is necessary to disassemble the filter box 3 for cleaning, the operator can easily replace the filter box 3 by using the handle of the filter box 3 and the action of the quick-release mechanism 4 (the working principle of the quick-release mechanism 4 is as described above), ensuring the quality of water circulation.

[0030] In summary, by utilizing the above-mentioned technical solution of this utility model, the present utility model, through the coordinated action of the tunnel-type spray frame 1, filter box 3, quick-release mechanism 4, water storage tank 5, oscillating nozzle 6, water pump 7, and water inlet pipe 8, effectively avoids localized overheating through uniform and controllable comprehensive spraying, thereby improving the hair removal efficiency and the quality of the livestock's skin. Simultaneously, the convenient replacement and cleaning of the filter box 3 effectively blocks impurities, ensuring the quality of the water circulation system and the stability of equipment operation. The tunnel-type spray frame 1, filter box 3, quick-release mechanism 4, water storage tank 5, water pump 7, and water inlet pipe 8 work together to achieve uniform and controllable comprehensive spraying, effectively avoiding localized overheating, improving hair removal efficiency and livestock skin quality. Furthermore, the convenient replacement and cleaning of the filter box 3 effectively blocks impurities, ensuring the quality of the water circulation system and the stability of equipment operation. With the cooperation of the water inlet pipe 8, the filter box 3 can be quickly replaced and cleaned, preventing impurities that fall off the animal's body during the spraying process from directly mixing into the water, preventing the formation of flocculent matter that could clog the pipes and nozzles, improving the operational stability of the scalding machine, and ensuring the quality and efficiency of water circulation. With the cooperation of the tunnel-type spray frame 1, the swing nozzle 6, the water pump 7, and the water inlet pipe 8, the water flow can be more evenly distributed to cover the animal's body, the spraying range is controllable and comprehensive, avoiding localized water concentration that could lead to overscalding, improving the efficiency of subsequent dehairing, and ensuring the quality of the animal.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tunnel-type livestock shower scalding machine, characterized by, include: Tunnel-type sprinkler frame (1); The liquid outlet (2) is located at the bottom of the tunnel-type spray frame (1); A filter box (3) is located at the bottom of the liquid outlet (2); The quick-release mechanism (4) is located on one side of the filter box (3) and cooperates with the tunnel spray frame (1) for quick disassembly of the filter box (3). A water storage tank (5) is located at the bottom of the filter box (3); Several swing nozzles (6) are symmetrically arranged on the inner wall of the tunnel-type spray frame (1) for spraying and scalding livestock. A water pump (7) is symmetrically arranged at the bottom of the water storage tank (5) and connected to several swing nozzles (6) through an inlet pipe (8).

2. A tunnel-type livestock shower and picker according to claim 1, wherein The quick-release mechanism (4) includes a fixed seat (401) symmetrically arranged on one side of the tunnel-type spray frame (1). Springs (402) are symmetrically arranged at both ends of one side of the fixed seat (401), and an arc-shaped pressure plate (403) is connected to one side of each spring (402). One of the arc-shaped pressure plates (403) has a first arc-shaped clamping plate (404) on its inner wall, and the other arc-shaped pressure plate (403) has a second arc-shaped clamping plate (405) on its inner wall. The bottom of the first arc-shaped clamping plate (404) and the second arc-shaped clamping plate (405) are movably connected by a movable shaft (406).

3. A tunnel-type livestock shower and picker according to claim 2, wherein The quick-release mechanism (4) also includes a circular locking block (407) symmetrically arranged on one side of the filter box (3), the circular locking block (407) cooperating with the inner walls of the first arc-shaped locking plate (404) and the second arc-shaped locking plate (405); The circular card block (407) has symmetrical slots (408) on the outer walls of its top two sides that cooperate with the top of the first arc-shaped card plate (404) and the top of the second arc-shaped card plate (405).

4. A tunnel-type livestock shower and picker according to claim 3, wherein The top of the first arc-shaped card plate (404) and the top of the second arc-shaped card plate (405) are both set as arc-shaped surfaces, and the cross-section of the card slot (408) is set as an arc-shaped structure that matches the arc-shaped surface.

5. A tunnel-type livestock spray scalding machine according to claim 1, characterized in that, Several of the swing nozzles (6) are arranged linearly on the inner wall of the tunnel-type spray frame (1).

6. A tunnel-type livestock shower and picker according to claim 5, wherein The swing nozzle (6) includes a reversing seat (601) disposed at the outlet end of the water inlet pipe (8), and a water spray housing (602) is disposed at the top of the reversing seat (601), and a main spray hole (603) is disposed on one side of the top of the water spray housing (602). The top of the water spray housing (602) is provided with a rocker arm assembly (604), and a return spring (605) is sleeved on the outside of the rocker arm assembly (604).

7. A tunnel-type livestock spray scalding machine according to claim 6, characterized in that, The outer side of the reversing seat (601) is fitted with a left stop pin (606) and a right stop pin (607) that cooperate with the rocker arm assembly (604).

8. A tunnel-type livestock shower and picker according to claim 7, characterized in that The rocker arm assembly (604) includes a rocker arm shaft (6041) disposed at the top of the water spray housing (602); one end of the rocker arm shaft (6041) is provided with a rocker arm head (6042) that cooperates with the main spray hole (603), and the other end of the rocker arm shaft (6041) is provided with a striking block (6043) that cooperates with the water spray housing (602). One side of the rocker shaft (6041) is provided with a reversing lever (6044) matched with the left blocking pin (606) and the right blocking pin (607).

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