Animal waste treatment device for animal husbandry and veterinary medicine

Abstract

The invention provides an animal waste treatment device for animal husbandry veterinarians, and relates to the technical field of waste treatment, and the animal waste treatment device comprises a mounting part, during use, an elastic part pushes a lifting part and an overturning plate to be attached to the ground, the waste can be shoveled up when passing through the waste, and then the lifting part is lifted upwards, so that the overturning plate can turn over the waste for lifting; the limiting block is limited by the positioning block, so that the turnover plate can be turned over when reaching the space above the containing and receiving part, and excrement in the turnover plate is poured into the containing and receiving part to be collected, and the device is arranged to be integrated with a collecting structure and a treatment structure, so that the excrement can be movably collected and treated at the same time; according to the animal excrement collecting device, the worker does not need to shovel up the excrement and then walk to the position near the treatment device for throwing, and the problem that when animal excrement is collected, the worker needs to shovel up the excrement with a shovel and then walk to the position in front of the treatment device for throwing, and the work intensity of the worker is undoubtedly increased is solved.

Description

Technical Field

[0001] The invention relates to the technical field of excrement treatment, and in particular to an animal excrement treatment device for animal husbandry and veterinary medicine. Background Art

[0002] In the field of animal husbandry and veterinary medicine, the treatment of animal manure has always been an important issue. With the continuous development of animal husbandry, the scale of breeding has continued to expand, and the amount of animal manure produced has also increased. If these manures cannot be treated in a timely and effective manner, it will cause serious pollution to the environment and will also affect the health of animals and breeding benefits. Animal husbandry and veterinary medicine need to deal with a large amount of animal manure when they work, so they need to use manure treatment equipment.

[0003] For example, application number: CN201821927250.X involves an environmentally friendly veterinary animal feces treatment device, including a feces separator shell, a motor is provided on the left outer wall of the feces separator shell, and a perforated plate is provided in the middle of the inner cavity of the feces treatment device shell. The perforated plate divides the feces treatment device shell into two parts: a liquid tank and a feces squeezing box. A liquid outlet is provided on the left side of the bottom of the liquid tank. The motor drives a rotating rod and a threaded plate to stir the feces. After stirring, the liquid in the feces is filtered through a filter net and enters the liquid tank through a liquid outlet pipe. The feces enters the feces squeezing box under the push of the rotating rod and the threaded plate. The squeezing plate squeezes the feces, and the residual liquid enters the liquid tank through the perforated plate. The feces is separated into solid and liquid for easy collection and storage. The liquid in the liquid tank is filtered by the spherical activated carbon and then discharged through the liquid outlet, thereby reducing the odor of the liquid and reducing pollution to the environment.

[0004] However, there are some shortcomings in the design of the current animal manure treatment device. First, when collecting animal manure, the staff needs to shovel the manure with a shovel and then walk to the treatment device to put it in, which undoubtedly increases the work intensity of the staff. Secondly, in order to facilitate the placement of manure, the injection port of the manure treatment device needs to be kept open at all times, which will cause the odor in the treatment device to emit, thereby causing a certain impact on the air environment. Summary of the invention

[0005] In view of the above problems, one purpose of the present application is to remedy these shortcomings, and more specifically to provide an animal manure treatment device for livestock and veterinary medicine, which can integrate collection and treatment devices into one, making it convenient for staff to collect and treat manure, and can also automatically cover the injection port of the treatment device after the manure is put in to prevent the spread of odor.

[0006] In a first aspect of the present disclosure, there is provided an animal excrement treatment device for animal husbandry and veterinary medicine, specifically comprising: a mounting component; the mounting component comprises a main body and a slide slot, the main body is a rectangular structure, and wheels are arranged at both ends of the main body, and the interior of the main body is a hollow structure; the slide slots are symmetrically arranged at the upper ends of both sides of the main body; a receiving component is provided on the mounting component, the receiving piece of the receiving component is arranged at the inner end of the main body, and the front end of the receiving piece is adjacent to the baffle in the main body, the bottom block outside the receiving piece is plugged into the docking groove in the main body, and the fixing groove in the bottom block is connected to the inner end of the docking groove. The limit plate is plug-in-matched; the receiving component is provided with a lifting component, the cover plate of the lifting component is buckled on the bottom of the receiving component, and the side block at the outer end of the cover plate is slidably matched with the slide groove, and the linkage plate outside the cover plate extends to the rear side of the main body; the installation component is provided with a rear component, the rear component includes a lifting component and a support rod, the lifting component is slidably installed on the inner rear side of the main body through an elastic component, and the control rod on the top of the lifting component passes through the upper end of the main body, the lifting component is at the rear side of the receiving component, and the upper end of the lifting component is adjacent to the linkage plate; the support rod is arranged at the bottom of the lifting component.

[0007] Preferably, the mounting component comprises: a slot and a baffle; the slot is opened at both ends of the front side of the main body, and the slot passes through the upper end of the main body; the baffle is installed at the inner end of the front side of the main body, and both sides of the baffle are plugged into and matched with the slot.

[0008] Preferably, the mounting component comprises: a movable groove and a movable rod; the movable groove is opened at the bottom of the main body, and the movable groove runs through the rear side and both ends of the main body; the movable rod is slidably mounted inside the movable groove.

[0009] Preferably, the mounting component comprises: a docking groove and a limiting plate; the docking groove is provided at the inner lower end of the main body and runs through both sides of the main body; the limiting plate is laterally inserted into the interior of the docking groove.

[0010] Preferably, the mounting component comprises: a mounting hole and a positioning block; the mounting holes are opened at positions on both sides of the main body; the positioning block is plugged into the mounting hole, and the positioning block is located inside the main body.

[0011] Preferably, the receiving component comprises: a receiving component and a separating component; the receiving component is a rectangular structure; the separating component is inserted into the inner upper end of the receiving component, and micro filter holes are equidistantly provided at the bottom of the separating component.

[0012] Preferably, the receiving component comprises: a bottom block and a fixing groove; the bottom block is arranged on the outer bottom side of the receiving component; and the fixing groove is opened inside the bottom block.

[0013] Preferably, the lifting component comprises: a cover plate and an extrusion plate; the cover plate is a rectangular structure; the extrusion plate is slidably mounted on the cover plate via an elastic member.

[0014] Preferably, the lifting component comprises: side blocks and a linkage plate; the side blocks are symmetrically arranged on the left and right sides of the cover plate; and the linkage plate is arranged at the middle position of the rear side of the cover plate.

[0015] Preferably, the rear component includes: a flip plate and a limit block; the flip plate is rotatably mounted on the inner end of the lifting member, and the rear end of the flip plate is overlapped on the support rod; the limit blocks are symmetrically arranged on both sides of the flip plate.

[0016] The present invention provides an animal excrement treatment device for animal husbandry and veterinary medicine, which has the following beneficial effects: 1. The present invention is provided with a receiving component and a rear component, the receiving component is installed inside the main body, the positioning block is inserted into the inner two sides of the main body through the mounting hole, the lifting component is slidably installed to the inner rear end of the main body through the elastic component, and the flip plate with a limiting block is rotatably installed on the lifting component. When in use, the elastic component pushes the lifting component and the flip plate to fit the ground, and the feces can be scooped up when passing through. Then, by lifting the lifting component upward, the flip plate can flip the feces to lift it. By limiting the limiting block by the positioning block, the flip plate can be flipped when it reaches the air above the receiving component, and the feces inside can be poured into the receiving component for collection. By setting the device as an integrated collection and processing structure, the feces can be collected while moving and processed, and there is no need for the staff to shovel the feces and then walk to the vicinity of the processing device to put it.

[0017] 2. The present invention is provided with a lifting component, slide grooves are provided at both ends of the main body, and the cover plate is movably installed on the inner side of the main body, so that the side blocks at both ends of the cover plate slide and cooperate with the slide grooves, and an L-shaped linkage plate is provided at the rear end of the cover plate. When the lifting component is lifted to put feces, the lifting component abuts against the bottom of the linkage plate and drives the cover plate to rise through the linkage plate, so that the cover plate can be opened from the receiving part. After the dropping is completed, the cover plate can fall down by its own weight and cover the receiving part, thereby preventing the smell of the internal feces from emitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings will provide those skilled in the art with a better understanding of the present disclosure and more clearly demonstrate the advantages of the present disclosure. The drawings described herein are for illustrative purposes only of selected embodiments, not all possible implementations, and are not intended to limit the scope of the present disclosure.

[0019] In the attached picture: Figure 1 A schematic diagram of a three-dimensional structure according to an embodiment of the present invention is shown.

[0020] Figure 2 A rear view structural schematic diagram according to an embodiment of the present invention is shown.

[0021] Figure 3A schematic diagram of a decomposed structure according to an embodiment of the present invention is shown.

[0022] Figure 4 A schematic cross-sectional structure diagram of an embodiment according to the present invention is shown.

[0023] Figure 5 A front side cross-sectional structural schematic diagram according to an embodiment of the present invention is shown.

[0024] Figure 6 A schematic diagram of a bottom cross-sectional structure according to an embodiment of the present invention is shown.

[0025] Figure 7 A schematic diagram of a rear side cross-sectional structure according to an embodiment of the present invention is shown.

[0026] Figure 8 A schematic diagram of the connection structure between a receiving component and a lifting component according to an embodiment of the present invention is shown.

[0027] Fig. 9 A schematic diagram of a partial cross-sectional structure of a rear component according to an embodiment of the present invention is shown.

[0028] Reference numerals list 1. Install components; 101, main body; 1011, chute; 102, slot; 1021, baffle; 103, movable slot; 1031, movable rod; 104, docking groove; 1041, limiting plate; 105, mounting hole; 1051, positioning block; 2. Receive components; 201, receiving parts; 2011, separating parts; 202, bottom block; 2021, fixing groove; 3. Lifting parts; 301, cover plate; 3011, extruded plate; 302, side block; 303, linkage plate; 4. Rear components; 401, lifting member; 4011, supporting rod; 402, flip plate; 4021, limit block. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1 to 9 As shown: The present invention provides an animal excrement treatment device for animal husbandry and veterinary medicine, comprising: a mounting component 1; the mounting component 1 comprises a main body 101 and a slide 1011, the main body 101 is a rectangular structure, and wheels are arranged at both ends of the main body 101, and the interior of the main body 101 is a hollow structure; the slide 1011 is symmetrically arranged at the upper ends of both sides of the main body 101; a receiving component 2 is arranged on the mounting component 1, a receiving member 201 of the receiving component 2 is arranged at the inner end of the main body 101, and the front end of the receiving member 201 is adjacent to a baffle 1021 in the main body 101, a bottom block 202 outside the receiving member 201 is plugged into a docking groove 104 in the main body 101, and a fixing groove 2021 in the bottom block 202 is connected to a limiting plate 1041 in the docking groove 104 Plug-in fit; a lifting component 3 is provided on the receiving component 2, and the cover plate 301 of the lifting component 3 is buckled on the bottom of the receiving component 201, and the side block 302 at the outer end of the cover plate 301 is slidably matched with the slide groove 1011, and the linkage plate 303 outside the cover plate 301 extends to the rear side of the main body 101; a rear component 4 is provided on the installation component 1, and the rear component 4 includes a lifting component 401 and a support rod 4011. The lifting component 401 is slidably installed on the inner rear side of the main body 101 through an elastic component, and the control rod at the top of the lifting component 401 passes through the upper end of the main body 101, the lifting component 401 is located on the rear side of the receiving component 201, and the upper end of the lifting component 401 is adjacent to the linkage plate 303; the support rod 4011 is arranged at the bottom of the lifting component 401.

[0031] As the second embodiment of the present application, based on the first embodiment, Figures 3 to 7As shown, the installation component 1 includes: a slot 102 and a baffle 1021; the slot 102 is opened at both ends of the front side of the main body 101, and the slot 102 passes through the upper end of the main body 101; the baffle 1021 is installed at the inner end of the front side of the main body 101, and the two sides of the baffle 1021 are plugged and matched with the slot 102; a movable groove 103 and a movable rod 1031; the movable groove 103 is opened at the bottom of the main body 101, and the movable groove 103 passes through the rear side and both ends of the main body 101; the movable rod 1031 Slidingly installed inside the movable groove 103; docking groove 104 and limit plate 1041; docking groove 104 is opened at the lower end of the inside of the main body 101, and the docking groove 104 runs through both sides of the main body 101; the limit plate 1041 is horizontally inserted into the inside of the docking groove 104; mounting hole 105 and positioning block 1051; the mounting hole 105 is opened at positions on both sides of the main body 101; the positioning block 1051 is inserted into the mounting hole 105, and the positioning block 1051 is inside the main body 101.

[0032] The present application sets a rectangular main body 101, and the receiving member 201 can be movably installed inside the main body 101; sets a rectangular slide groove 1011, and the cover plate 301 can be slidably installed inside the main body 101 by slidingly matching the slide groove 1011; sets a rectangular slot 102, and the baffle 1021 can be fixed at the front end of the main body 101 by plugging and matching the two sides of the baffle 1021 with the baffle 1021; sets a rectangular baffle 1021, and the receiving member 201 can be removed from the inside of the main body 101 by pulling the baffle 1021 out of the main body 101; sets a T-shaped movable groove 103, and the movable rod 1031 can be slidably installed to the inner end of the main body 101 through the movable groove 103; sets a T-shaped baffle 1021, and the baffle 1 021 extends from the rear end of the slot 102, so that the baffle 1021 can support the rear component 4 in the main body 101; a rectangular docking groove 104 is provided, and the receiving component 201 can be installed at the inner end of the main body 101 by plugging and matching the docking groove 104 with the bottom block 202; a rectangular movable rod 1031 is provided, and the bottom block 202 can be fixed in the docking groove 104 by inserting the movable rod 1031 into the fixing groove 2021; a circular mounting hole 105 is provided, and the positioning block 1051 can be installed inside the main body 101 by plugging and matching the positioning block 1051 with the mounting hole 105; the positioning block 1051 is provided, and when the limit block 4021 contacts the positioning block 1051, the flip plate 402 can rotate on the inner side of the lifting member 401.

[0033] In the present disclosure, Figure 8As shown, the receiving component 2 includes: a receiving component 201 and a separating component 2011; the receiving component 201 is a rectangular structure; the separating component 2011 is plugged into the upper end of the receiving component 201, and the bottom of the separating component 2011 is equidistantly provided with micro-filter holes; a bottom block 202 and a fixing groove 2021; the bottom block 202 is arranged on the outer bottom side of the receiving component 201; the fixing groove 2021 is arranged inside the bottom block 202; the rectangular receiving component 201 is provided to collect the collected animal feces; the separating component 2011 is provided to perform preliminary dry and wet separation of the animal feces; the rectangular bottom block 202 is provided, and the receiving component 201 can be installed inside the main body 101 by plugging the bottom block 202 into the docking groove 104; the rectangular fixing groove 2021 is provided, and the bottom block 202 can be fixed in the docking groove 104 by plugging and matching the fixing groove 2021 with the limiting plate 1041. .

[0034] As the third embodiment of the present application, based on the first embodiment, Figure 8 As shown, the lifting component 3 includes: a cover plate 301 and an extrusion plate 3011; the cover plate 301 is a rectangular structure; the extrusion plate 3011 is slidably installed on the cover plate 301 through an elastic member; a side block 302 and a linkage plate 303; the side block 302 is symmetrically arranged on the left and right sides of the cover plate 301; the linkage plate 303 is arranged in the middle position of the rear side of the cover plate 301.

[0035] The present application sets a rectangular cover plate 301, and by snapping the cover plate 301 onto the upper end of the receiving member 201, it can prevent the feces inside the receiving member 201 from emitting odor to the outside; sets a rectangular squeezing plate 3011, and by using the squeezing plate 3011 to squeeze the feces in the separating member 2011, the feces can be preliminarily dehydrated; sets a rectangular side block 302, and by slidingly matching the side block 302 with the slide groove 1011, the cover plate 301 can be slidably installed on the inner end of the main body 101; sets an L-shaped linkage plate 303, and when the lifting member 401 rises, by pushing the linkage plate 303, the cover plate 301 can rise together with the lifting member 401.

[0036] As the fourth embodiment of the present application, based on the first embodiment, Figure 7 and 9 As shown, the rear component 4 includes: a flip plate 402 and a limit block 4021; the flip plate 402 is rotatably mounted on the inner end of the lifting member 401, and the rear end of the flip plate 402 is overlapped on the support rod 4011; the limit blocks 4021 are symmetrically arranged on both sides of the flip plate 402.

[0037] The present application sets a lifting member 401, and a flip plate 402 can be rotatably installed inside the lifting member 401; a rectangular support rod 4011 is set to support the flip plate 402 rotatably installed inside the lifting member 401; and a rectangular flip plate 402 is set to collect animal feces through the flip plate 402.

[0038] The specific usage and function of this embodiment are as follows: In the present invention, Figures 1 to 9 As shown, the receiving member 201 is placed inside the main body 101, the bottom block 202 at the lower end of the receiving member 201 is inserted into the docking groove 104, the limiting plate 1041 is inserted into the docking groove 104 horizontally, the limiting plate 1041 passes through the fixing groove 2021, the separating member 2011 is inserted into the receiving member 201, and the cover plate 301 is arranged inside the main body 101, the side blocks 302 at both ends of the cover plate 301 are slidably matched with the slide groove 1011, and the cover plate 301 is automatically buckled to the receiving member 20 1, after installing the receiving member 201, insert the baffle 1021 into the front end of the main body 101, so that the two sides of the baffle 1021 are plugged into the slot 102, slide the movable rod 1031 into the movable groove 103 in the bottom of the main body 101, insert the positioning block 1051 into the two sides of the interior of the main body 101 through the installation hole 105, slide the lifting member 401 to the rear side of the interior of the main body 101 through the elastic member, rotate the flip plate 402 to install it inside the lifting member 401, and flip the flip plate 402. The rear end of the plate 402 is overlapped with the support rod 4011 at the lower end of the lifting member 401. The elastic member pushes the lifting member 401 and the bottom of the flip plate 402 to fit the ground. The staff pushes the main body 101 to move. When passing through feces, the flip plate 402 can scoop up the feces, and then pull up the lifting member 401. When the lifting member 401 rises, it will contact the linkage plate 303 and push the cover plate 301 to the upper end. When the lifting member 401 rises to a certain height, the positioning block 1051 will contact the limit block 40 21 is limited, and the flip plate 402 is flipped forward, so that the feces at the upper end are poured into the separation piece 2011 in the receiving piece 201. After pouring, the bottom of the lifting piece 401 is re-attached to the ground. As the lifting piece 401 is lowered, the cover plate 301 is re-fastened to the upper end of the receiving piece 201, and then the squeezing plate 3011 on the cover plate 301 is pressed, and the feces in the separation piece 2011 are squeezed to perform preliminary solid-liquid separation on the feces, thereby facilitating subsequent processing.

[0039] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0040] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0041] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An animal excrement treatment device for animal husbandry and veterinary medicine, comprising: The mounting component (1) comprises a main body (101) and a slide groove (1011), the main body (101) is a rectangular structure, and wheels are provided at both ends of the main body (101), and the interior of the main body (101) is a hollow structure; the slide groove (1011) is symmetrically arranged at the upper ends of both sides of the main body (101); the mounting component (1) is characterized in that a receiving component (2) is provided on the mounting component (1), a receiving member (201) of the receiving member (2) is provided at the inner end of the main body (101), and a front end of the receiving member (201) is adjacent to a baffle (1021) in the main body (101), a bottom block (202) outside the receiving member (201) is plugged into a docking groove (104) in the main body (101), and a fixing groove (2021) in the bottom block (202) is plugged into a limiting plate (1041) in the docking groove (104); the receiving member (201) is provided at the inner end of the main body (101), and a front end of the receiving member (201) is adjacent to a baffle (1021) in the main body (101), and a bottom block (202) outside the receiving member (201) is plugged into a docking groove (104) in the main body (101). The component (2) is provided with a lifting component (3), the cover plate (301) of the lifting component (3) is buckled on the bottom of the receiving component (201), and the side block (302) at the outer end of the cover plate (301) is slidably matched with the slide groove (1011), and the linkage plate (303) outside the cover plate (301) extends to the rear side of the main body (101); the installation component (1) is provided with a rear component (4), the rear component (4) includes a lifting component (401) and a support rod (4011), the lifting component (401) is slidably installed on the inner rear side of the main body (101) through an elastic component, and the control rod at the top of the lifting component (401) passes through the upper end of the main body (101), the lifting component (401) is located at the rear side of the receiving component (201), and the upper end of the lifting component (401) is adjacent to the linkage plate (303); the support rod (4011) is arranged at the bottom of the lifting component (401).

2. The animal excrement treatment device for animal husbandry and veterinary medicine according to claim 1, characterized in that: The mounting component (1) comprises: a slot (102) and a baffle (1021); the slot (102) is provided at both ends of the front side of the main body (101), and the slot (102) passes through the upper end of the main body (101); the baffle (1021) is mounted at the inner end of the front side of the main body (101), and two sides of the baffle (1021) are plugged into and matched with the slot (102).

3. The animal excrement treatment device for animal husbandry and veterinary medicine according to claim 2, characterized in that: The mounting component (1) comprises: a movable groove (103) and a movable rod (1031); the movable groove (103) is opened at the bottom of the main body (101), and the movable groove (103) passes through the rear side and both ends of the main body (101); the movable rod (1031) is slidably mounted inside the movable groove (103).

4. The animal excrement treatment device for animal husbandry and veterinary medicine according to claim 3, characterized in that: The mounting component (1) comprises: a docking groove (104) and a limiting plate (1041); the docking groove (104) is provided at the lower end of the interior of the main body (101), and the docking groove (104) passes through both sides of the main body (101); and the limiting plate (1041) is inserted transversely into the interior of the docking groove (104).

5. The animal excrement treatment device for animal husbandry and veterinary medicine according to claim 4, characterized in that: The mounting component (1) comprises: a mounting hole (105) and a positioning block (1051); the mounting hole (105) is provided at positions on both sides of the main body (101); the positioning block (1051) is plugged into the mounting hole (105), and the positioning block (1051) is located inside the main body (101).

6. The animal excrement treatment device for animal husbandry and veterinary medicine according to claim 1, characterized in that: The receiving component (2) comprises: a receiving component (201) and a separating component (2011); the receiving component (201) is a rectangular structure; the separating component (2011) is plugged into the upper end of the receiving component (201), and micro filter holes are equidistantly provided at the bottom of the separating component (2011).

7. The animal excrement treatment device for animal husbandry and veterinary medicine according to claim 6, characterized in that: The receiving component (2) comprises: a bottom block (202) and a fixing groove (2021); the bottom block (202) is arranged on the outer bottom side of the receiving component (201); and the fixing groove (2021) is opened inside the bottom block (202).

8. The animal excrement treatment device for animal husbandry and veterinary medicine according to claim 1, characterized in that: The lifting component (3) comprises: a cover plate (301) and an extrusion plate (3011); the cover plate (301) is a rectangular structure; and the extrusion plate (3011) is slidably mounted on the cover plate (301) via an elastic member.

9. The animal excrement treatment device for animal husbandry and veterinary medicine according to claim 8, characterized in that: The lifting component (3) comprises: a side block (302) and a linkage plate (303); the side block (302) is symmetrically arranged on the left and right sides of the cover plate (301); and the linkage plate (303) is arranged at a middle position on the rear side of the cover plate (301).

10. The animal excrement treatment device for animal husbandry and veterinary medicine according to claim 1, characterized in that: The rear component (4) comprises: a flip plate (402) and a limit block (4021); the flip plate (402) is rotatably mounted on the inner end of the lifting member (401), and the rear end of the flip plate (402) is overlapped on the support rod (4011), and the front side of the flip plate (402) is a wedge-shaped structure; the limit blocks (4021) are symmetrically arranged at two sides of the flip plate (402).

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