Automatic mushroom house rack lifting machine

Abstract

The utility model discloses a kind of edible mushroom house semi-automatic upper and lower frame machines, including underframe, lifting support arm, multiple forks and lifting drive device, lifting support arm is installed on underframe, both ends of lifting support arm are rotatably installed with sprocket, and chain is wound on sprocket, and multiple forks are fixed on chain;Lifting drive device is used to drive sprocket rotation, and multiple forks are driven to move circularly around lifting support arm by chain;Lifting support arm includes lower arm and middle arm, lower arm is fixed on underframe along vertical direction, middle arm is rotatably connected to lower arm, and main gear is fixed on middle arm, folding drive device is installed on lower arm, folding drive device and main gear are driven to be connected by folding transmission mechanism between, folding drive device is used to drive main gear by folding transmission mechanism to drive middle arm rotation.The utility model can significantly reduce the overall space occupied by equipment, avoid appearing shaking, deviation and other conditions, ensure that equipment is stable in operating state structure.

Description

Technical Field

[0001] This utility model relates to the field of conveying device technology, and in particular to a semi-automatic loading and unloading machine for edible mushroom growing rooms. Background Technology

[0002] In the mushroom cultivation industry, multi-layered mushroom racks are typically used to improve space utilization. The core production process involves loading and unloading mushrooms, namely, loading the mushroom bags onto the racks for cultivation and unloading mature mushrooms for harvesting. Traditionally, this process is done manually, requiring workers to climb ladders or manually move the mushrooms to different heights on the racks. This is not only extremely labor-intensive but also inefficient. Furthermore, the mushrooms are prone to damage from collisions and falls during manual handling.

[0003] Currently, although some large-scale planting bases have introduced folding rack-mounting machines for mushroom loading and unloading, the following drawbacks still exist: Traditional folding rack-mounting machines mostly use manual folding or hydraulic cylinder-driven folding. On the one hand, manual folding requires multiple people to work together, which is inconvenient and time-consuming; on the other hand, hydraulic cylinder-driven folding suffers from low driving precision, large folding angle errors, and is prone to support arm misalignment. Furthermore, it experiences severe shaking and poor stability when switching between vertical and horizontal states. Therefore, it is necessary to improve the existing technology to overcome these shortcomings. Utility Model Content

[0004] The problem to be solved by this utility model is to provide a semi-automatic loading and unloading machine for edible mushroom growing rooms, so as to overcome the defects of low precision and poor stability of existing edible mushroom loading and unloading machines.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a semi-automatic loading and unloading machine for edible mushroom growing rooms, comprising: Base frame; A lifting support arm is mounted on the base frame. Both ends of the lifting support arm are rotatably mounted with sprockets, and chains are wound around the sprockets. The forks are provided in multiple locations, and each of the multiple forks is fixed to the chain at intervals. And a lifting drive device, fixed on the base frame and connected to one of the sprockets, the lifting drive device is used to drive the sprocket to rotate, and drive multiple forks to circulate around the lifting support arm through the chain; The lifting support arm includes a lower arm and a middle arm. The lower arm is fixed vertically to the base frame. The middle arm is rotatably connected to the lower arm, and a main gear is fixed on the middle arm. A folding drive device is installed on the lower arm. The folding drive device and the main gear are driven by a folding transmission mechanism. The folding drive device is used to drive the main gear through the folding transmission mechanism to rotate the middle arm, so that the middle arm can switch between a vertical distribution state and a horizontal distribution state.

[0006] As a further improvement of this utility model, the folding transmission mechanism includes a lower arm shaft rotatably mounted on the lower arm and a chain transmission mechanism connected between the lower arm shaft and the folding drive device. A secondary gear is provided on the lower arm shaft, and the secondary gear meshes with the main gear.

[0007] As a further improvement of this utility model, the lower end of the middle arm is rotatably connected to the upper end of the lower arm through the middle arm pivot. There are two main gears, which are fixed on the two opposite inner sides of the lower end of the middle arm respectively. Both main gears are mounted on the middle arm pivot through bearings. The number of auxiliary gears is the same as that of the main gears and they mesh one-to-one.

[0008] As a further improvement of this utility model, both the lower arm and the middle arm are hollow frame structures with baffles on their outer sides, and the folding drive device and the folding transmission mechanism are both located inside the lower arm.

[0009] As a further improvement of this utility model, the semi-automatic mushroom growing room rack-mounting machine also includes a braking device. The braking device includes a brake block and a braking drive device. The brake block is slidably mounted on the lower arm and arranged on one side of the main gear. The brake block has a brake tooth at one end facing the main gear. The braking drive device is mounted on the lower arm and is connected to the brake block for transmission. It is used to drive the brake block to slide toward the main gear so that the brake tooth engages with the main gear.

[0010] As a further improvement of this utility model, a slider is fixed on the lower arm, and the slider is slidably connected to the brake block; a first connecting rod is hinged on the brake block, and a second connecting rod is rotatably mounted on the lower arm, with one end of the first connecting rod and one end of the second connecting rod both hinged to the output end of the brake drive device.

[0011] As a further improvement of this utility model, the semi-automatic lifting and lowering machine for edible mushroom growing rooms also includes a tensioning mechanism. The tensioning mechanism includes a tensioning shaft, two lifting plates, and a tensioning drive device. The two lifting plates are slidably mounted on one end of the lifting support arm. The two ends of the tensioning shaft are rotatably mounted on the two lifting plates respectively. One of the sprockets is fixed on the tensioning shaft. The tensioning drive device is connected to the lifting plate and is used to drive the lifting plate to move the tensioning shaft and the sprocket to lift and lower, so as to tension or loosen the chain.

[0012] As a further improvement of this utility model, a support is provided on the base frame, and the middle arm is supported by the support when it is in a horizontally distributed state.

[0013] As a further improvement of this utility model, the lifting support arm also includes an upper arm, which is hinged to the middle arm and can rotate relative to the middle arm about the hinge axis, so that the upper arm and the middle arm are collinear in the same vertical plane, or the upper arm and the middle arm are perpendicular to each other in the same vertical plane.

[0014] As a further improvement of this utility model, wheels are installed at the bottom of the base frame, and a manual hydraulic wheel device is installed on one side of the base frame.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a semi-automatic lifting and lowering machine for edible mushroom growing rooms. By setting a rotatable and switchable middle arm, the middle arm can be folded horizontally when not in use, significantly reducing the overall space occupied by the equipment. This facilitates storage and movement in space-constrained places such as mushroom cultivation workshops and warehouses. At the same time, the folding drive device, folding transmission mechanism and main gear work together to drive the middle arm to rotate, so that the middle arm can switch between a vertical distribution state and a horizontal distribution state. This provides stable power transmission for the middle arm to switch states, avoiding swaying or deviation during switching, ensuring the structural stability of the equipment in the working state, and providing reliable support for lifting and lowering goods. In addition, this utility model is also equipped with a braking device, which locks the middle arm through the main gear when the middle arm is in the vertical distribution state. This effectively avoids the risk of goods falling due to the rotation of the middle arm during the lifting and lowering operation of goods carried by the forks, greatly improving the safety and stability of the equipment operation and ensuring the smooth progress of the operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the semi-automatic upper and lower rack machine for edible mushroom growing rooms according to this utility model; Figure 2 This is a perspective view of the semi-automatic mushroom growing room rack machine of this utility model, excluding the base frame. Figure 3 This is a perspective view of the middle arm, main gear, folding transmission mechanism, and folding drive device in the semi-automatic loading and unloading machine for edible mushroom growing rooms of this utility model. Figure 4 This is a perspective view of the main gear and braking device in the semi-automatic upper and lower rack machine for edible fungi growing rooms of this utility model. Figure 5 This utility model Figure 2 Enlarged view of part A in the middle.

[0018] Referring to the accompanying drawings, the following explanations are provided: 1. Base frame; 101. Wheel; 2. Lifting support arm; 201. Lower arm; 202. Middle arm; 203. Upper arm; 3. Sprocket; 4. Fork; 5. Main gear; 6. Folding drive device; 7. Lower arm pivot; 8. Chain drive mechanism; 9. Secondary gear; 10. Middle arm pivot; 11. Brake block; 1101. Brake tooth; 12. Brake drive device; 13. Slider; 14. First connecting rod; 15. Second connecting rod; 16. Tensioning shaft; 17. Lifting plate; 18. Tensioning drive device; 19. Bracket; 20. Positioning block. Detailed Implementation

[0019] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0020] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0022] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0023] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0024] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0025] See Figures 1 to 5 This utility model provides a semi-automatic mushroom growing room loading and unloading machine, comprising: a base frame 1, a lifting support arm 2, forks 4, and a lifting drive device. The lifting support arm 2 is vertically mounted on the base frame 1, and sprockets 3 are rotatably mounted at both the upper and lower ends of the lifting support arm 2, with chains (not shown in the figure) wound around the upper and lower sprockets 3. Multiple forks 4 are provided, and the multiple forks 4 are fixed at intervals on corresponding links in the chain, which can be used to support mushrooms.

[0026] Furthermore, the lifting drive device is fixed on the base frame 1 and connected to a sprocket 3 located at the lower end of the lifting support arm 2. The lifting drive device is used to drive the sprocket 3 to rotate, and the sprocket 3 will synchronously drive the chain to rotate, thereby driving multiple forks 4 to circulate around the lifting support arm 2 through the chain.

[0027] In this invention, the lifting drive device can be a geared motor, which is connected to a sprocket 3 at the lower end of the lifting support arm 2 via a chain drive mechanism. When the lifting drive device drives the sprocket 3 to rotate the chain clockwise, the forks 4 lift the mushrooms from a lower position to a higher position; when the lifting drive device drives the sprocket 3 to rotate the chain counterclockwise, the forks 4 lower the mushrooms from a higher position to a lower position. This achieves automatic loading and unloading of mushrooms, greatly improving work efficiency and reducing the labor intensity of workers compared to traditional manual handling.

[0028] In addition, to improve the stability of the movement of the forks 4, two rollers are provided on each fork 4, and two guide rails are provided on the lifting support arm 2. The two rollers of the forks 4 roll along the two guide rails respectively.

[0029] As a key improvement of this invention, the lifting support arm 2 includes a lower arm 201 and a middle arm 202. The lower arm 201 is fixed vertically to the base frame 1. The lower end of the middle arm 202 is rotatably connected to the lower arm 201, and a main gear 5 is fixed on the middle arm 202. A folding drive device 6 is mounted on the lower arm 201, and the folding drive device 6 is driven by the main gear 5 through a folding transmission mechanism. The folding drive device 6 is used to drive the main gear 5 to rotate the middle arm 202 through the folding transmission mechanism, so that the middle arm 202 can switch between a vertical distribution state and a horizontal distribution state.

[0030] The lifting support arm 2 of this utility model includes a lower arm 201 and a rotatable switching middle arm 202. When not in use, the middle arm 202 can be folded horizontally, significantly reducing the overall space occupied by the equipment. This facilitates storage and movement in space-constrained places such as mushroom cultivation workshops and warehouses. At the same time, the middle arm 202 is driven to rotate through the folding drive device 6, the folding transmission mechanism and the main gear 5, so that the middle arm 202 can switch between a vertical distribution state and a horizontal distribution state. This provides stable power transmission for the state switching of the middle arm 202, avoiding swaying or deviation of the middle arm 202 when switching between vertical and horizontal states, ensuring the structural stability of the equipment in operation, and providing reliable support for lifting and lowering goods.

[0031] See Figure 3 The lower end of the middle arm 202 is rotatably connected to the upper end of the lower arm 201 via the middle arm pivot 10. Two main gears 5 are provided, respectively fixed on the two opposite inner sides of the lower end of the middle arm 202, and both main gears 5 are mounted on the middle arm pivot 10 via bearings. The folding transmission mechanism includes a lower arm pivot 7 rotatably mounted on the upper end of the lower arm 201 and a chain transmission mechanism 8 connecting the lower arm pivot 7 and the folding drive device 6. The lower arm pivot 7 is provided with auxiliary gears 9, which are the same number as the main gears 5 and mesh one-to-one.

[0032] When the folding drive device 6 is working, it drives the lower arm shaft 7 to rotate via the chain drive mechanism 8, which in turn drives the secondary gear 9 to rotate synchronously. The secondary gear 9 then drives the main gear 5 and the middle arm 202 to rotate, thereby enabling the middle arm 202 to switch between a vertical and horizontal distribution state. This invention adopts this design, utilizing the stability of the chain drive mechanism 8 and the precision of gear transmission to ensure that power is efficiently and accurately transmitted from the folding drive device 6 to the middle arm 202, making the rotation of the middle arm 202 more stable and reliable.

[0033] In this invention, the folding drive device 6 can be a geared motor.

[0034] See Figure 1 The base frame 1 is equipped with a support 19, and the middle arm 202 is equipped with a positioning block 20. When the middle arm 202 is in a horizontally distributed state, the middle arm 202 is supported on the support 19 by the positioning block 20. This not only enhances the overall stability of the equipment in the folded state and prevents the equipment from tipping over due to the shift of the center of gravity or accidental collision, but also helps the equipment to remain stable during storage and movement, further improving the safety and reliability of the equipment.

[0035] like Figure 2 and Figure 3 As shown, both the lower arm 201 and the middle arm 202 in this invention are hollow frame structures with baffles on all four sides. The folding drive device 6 and the folding transmission mechanism are both located inside the lower arm 201. On the one hand, this structural design can effectively protect the internal drive and transmission components, reduce the impact of external factors such as dust, debris, and collisions, and extend the service life of the equipment; on the other hand, it makes the overall structure of the equipment more compact and improves its aesthetics.

[0036] As another important improvement of this utility model, the semi-automatic upper and lower rack machine for edible mushroom growing rooms also includes a braking device, which is used to lock the middle arm 202 through the main gear 5 when the middle arm 202 is in a vertical distribution state.

[0037] like Figure 4As shown, the braking device includes a brake block 11 and a brake drive device 12. The brake block 11 is slidably mounted on the lower arm 201 and arranged below one of the main gears 5. The end of the brake block 11 facing the main gear 5 has a brake tooth 1101, which is matched with the teeth on the main gear 5. The brake drive device 12 is mounted on the lower arm 201 and is connected to the brake block 11. It drives the brake block 11 to slide towards the main gear 5, so that the brake tooth 1101 engages with the main gear 5, thereby effectively braking the rotation of the middle arm 202. When the middle arm 202 is in a vertically distributed state, this method ensures that the middle arm 202 will not rotate unexpectedly due to external forces or other factors during the lifting and lowering operation of the forks 4 carrying goods. This effectively avoids the risk of goods falling due to the rotation of the middle arm 202, greatly improving the safety and stability of the equipment operation and ensuring smooth operation.

[0038] Specifically, a slider 13 is fixed on the lower arm 201, and the slider 13 is slidably connected to the brake block 11. A first connecting rod 14 is hinged to the brake block 11, and a second connecting rod 15 is hinged to the lower arm 201. The first connecting rod 14 and the second connecting rod 15 are arranged in a "V" shape, and the ends of the first connecting rod 14 and the second connecting rod 15 that are close to each other are both hinged to the output end of the brake drive device 12.

[0039] In this utility model, the braking drive device 12 is an electric push rod, the mounting end of which is hinged to the lower arm 201.

[0040] When the output end of the brake drive device 12 extends forward, it can push the brake block 11 toward the main gear 5 through the first link 14 so that the brake tooth 1101 engages with the main gear 5; when the output end of the brake drive device 12 retracts backward, it can pull the brake block 11 toward the direction away from the main gear 5 through the first link 14 so that the brake tooth 1101 leaves the main gear 5.

[0041] See Figure 1 and Figure 2 The lifting support arm 2 also includes an upper arm 203, the lower end of which is hinged to the upper end of the middle arm 202. The upper arm 203 can rotate relative to the middle arm 202 around the hinge axis, so that the upper arm 203 and the middle arm 202 are collinear in the same vertical plane, or perpendicular to each other in the same vertical plane. In other words, the lifting support arm 2 in this invention has a three-section structure. Both the middle arm 202 and the upper arm 203 can be folded in the same direction. When the upper and lower frame machines are not in operation, by folding the middle arm 202 into a horizontally distributed state, and then folding the upper arm 203 into a state perpendicular to the middle arm 202, the folded volume can be further reduced, saving space.

[0042] In this utility model, the folding drive method of the upper arm 203 is the same as that of the middle arm 202, so it will not be described again.

[0043] See Figure 2 and Figure 5 The semi-automatic mushroom growing room mounting and dismounting machine of this utility model also includes a tensioning mechanism, which includes a tensioning shaft 16, two lifting plates 17, and a tensioning drive device 18. The two lifting plates 17 are slidably mounted on opposite sides of the upper end of the upper arm 203 in a vertical direction. The two ends of the tensioning shaft 16 are respectively rotatably mounted on the two lifting plates 17, and a sprocket 3 located at the upper end is fixed on the tensioning shaft 16. The tensioning drive device 18 is mounted on the outside of the upper arm 203 and drives one of the lifting plates 17. The tensioning drive device 18 is used to drive the lifting plate 17 to move the tensioning shaft 16 and the sprocket 3 to perform lifting and lowering movements, so as to tension or loosen the chain.

[0044] When the upper and lower racks need to be folded, the tensioning drive device 18 first drives the lifting plate 17 to lower the tensioning shaft 16 and sprocket 3 to loosen the chain, which can prevent damage caused by forcibly folding due to the chain being too tight.

[0045] In this invention, the brake drive device 12 can also be an electric push rod.

[0046] See Figure 1 The bottom of the base frame 1 is equipped with wheels 101 to facilitate the movement of the machine on and off the frame.

[0047] In order to facilitate manual movement of the machine on and off the frame, a manual hydraulic wheel device is installed on one side of the base frame 1. The manual hydraulic wheel device adopts existing technology and its principle is the same as that of the manual hydraulic structure on the existing manual hydraulic vehicle, so it will not be described in detail.

[0048] In addition, a driving device such as a geared motor can be installed on the base frame 1. The driving device is connected to the wheel 101 through a chain drive mechanism to achieve automatic driving.

[0049] In summary, this utility model provides a semi-automatic lifting and lowering machine for edible mushroom cultivation rooms. By incorporating a rotatable, switchable middle arm 202, the middle arm 202 can be folded horizontally when not in use, significantly reducing the overall space occupied by the equipment. This facilitates storage and movement in space-constrained locations such as mushroom cultivation workshops and warehouses. Simultaneously, the folding drive device 6, folding transmission mechanism, and main gear 5 work together to drive the middle arm 202 to rotate, allowing it to switch between vertical and horizontal configurations. This provides stable power transmission for the middle arm 202's state switching, preventing swaying or deviation during vertical / horizontal transitions and ensuring structural stability during operation, providing reliable support for lifting and lowering goods. Furthermore, this utility model also includes a braking device. When the middle arm 202 is in a vertical configuration, the main gear 5 locks the middle arm 202, effectively preventing the risk of goods falling due to the rotation of the middle arm 202 during lifting and lowering operations with the forks 4 supporting the goods. This greatly improves the safety and stability of the equipment operation, ensuring smooth operation.

[0050] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A semi-automatic rack-mounting machine for edible mushroom growing rooms, comprising: Base frame (1); A lifting support arm (2) is installed on the base frame (1). Both ends of the lifting support arm (2) are rotatably equipped with sprockets (3), and chains are wound around the sprockets (3). Multiple forks (4) are provided, and each of the multiple forks (4) is fixed to the chain at intervals; The lifting drive device is fixed on the base frame (1) and connected to one of the sprockets (3). The lifting drive device is used to drive the sprocket (3) to rotate and drive multiple forks (4) to circulate around the lifting support arm (2) through the chain. The lifting support arm (2) is characterized in that it includes a lower arm (201) and a middle arm (202). The lower arm (201) is fixed on the base frame (1) in the vertical direction. The middle arm (202) is rotatably connected to the lower arm (201). A main gear (5) is fixed on the middle arm (202). A folding drive device (6) is installed on the lower arm (201). The folding drive device (6) and the main gear (5) are driven and connected through a folding transmission mechanism. The folding drive device (6) is used to drive the main gear (5) through the folding transmission mechanism to drive the middle arm (202) to rotate, so that the middle arm (202) can switch between a vertical distribution state and a horizontal distribution state.

2. The semi-automatic loading and unloading machine for edible mushroom growing rooms according to claim 1, characterized in that, The folding transmission mechanism includes a lower arm shaft (7) rotatably mounted on the lower arm (201) and a chain transmission mechanism (8) connecting the lower arm shaft (7) and the folding drive device (6). A secondary gear (9) is provided on the lower arm shaft (7), and the secondary gear (9) meshes with the main gear (5).

3. The semi-automatic mushroom growing room rack loading and unloading machine according to claim 2, characterized in that, The lower end of the middle arm (202) is rotatably connected to the upper end of the lower arm (201) via the middle arm pivot (10). There are two main gears (5), which are fixed on the two opposite inner sides of the lower end of the middle arm (202) respectively. Both main gears (5) are mounted on the middle arm pivot (10) via bearings. The number of auxiliary gears (9) is the same as that of the main gears (5) and they mesh one-to-one.

4. The semi-automatic loading and unloading machine for edible mushroom growing rooms according to claim 1, characterized in that, Both the lower arm (201) and the middle arm (202) are hollow frame structures with baffles on their outer sides. The folding drive device (6) and the folding transmission mechanism are both located inside the lower arm (201).

5. The semi-automatic loading and unloading machine for edible mushroom growing rooms according to claim 1, characterized in that, It also includes a braking device, which includes a brake block (11) and a brake drive device (12). The brake block (11) is slidably mounted on the lower arm (201) and arranged on one side of the main gear (5). The brake block (11) has a brake tooth (1101) at one end facing the main gear (5). The brake drive device (12) is mounted on the lower arm (201) and is connected to the brake block (11) for driving the brake block (11) to slide toward the main gear (5) so that the brake tooth (1101) matches the main gear (5).

6. The semi-automatic mushroom growing room rack loading and unloading machine according to claim 5, characterized in that, A slider (13) is fixed on the lower arm (201), and the slider (13) is slidably connected to the brake block (11); a first connecting rod (14) is hinged on the brake block (11), and a second connecting rod (15) is rotatably mounted on the lower arm (201). One end of the first connecting rod (14) and one end of the second connecting rod (15) are both hinged to the output end of the brake drive device (12).

7. The semi-automatic mushroom growing room rack loading and unloading machine according to claim 1, characterized in that, It also includes a tensioning mechanism, which includes a tensioning shaft (16), two lifting plates (17) and a tensioning drive device (18). The two lifting plates (17) are slidably mounted on one end of the lifting support arm (2). The two ends of the tensioning shaft (16) are respectively rotatably mounted on the two lifting plates (17). One of the sprockets (3) is fixed on the tensioning shaft (16). The tensioning drive device (18) is connected to the lifting plate (17) and is used to drive the lifting plate (17) to drive the tensioning shaft (16) and the sprocket (3) to perform lifting and lowering movements to tension or loosen the chain.

8. The semi-automatic loading and unloading machine for edible mushroom growing rooms according to claim 1, characterized in that, The base frame (1) is provided with a bracket (19), and the middle arm (202) is supported by the bracket (19) when it is in a horizontal distribution state.

9. The semi-automatic loading and unloading machine for edible mushroom growing rooms according to claim 1, characterized in that, The lifting support arm (2) also includes an upper arm (203), which is hinged to the middle arm (202). The upper arm (203) can rotate relative to the middle arm (202) about the hinge axis, so that the upper arm (203) and the middle arm (202) are collinear in the same vertical plane, or the upper arm (203) and the middle arm (202) are perpendicular to each other in the same vertical plane.

10. The semi-automatic loading and unloading machine for edible mushroom growing rooms according to claim 1, characterized in that, The bottom of the base frame (1) is equipped with wheels (101), and a manual hydraulic wheel device is installed on one side of the base frame (1).

Images