Bracket temporary storage device of environmental insect circulating breeding equipment

Abstract

The utility model belongs to the technical field of insect breeding equipment, and particularly relates to a bracket temporary storage device of environmental insect circulating breeding equipment, which comprises a mounting bracket, an upper temporary storage frame and a lower temporary storage frame are movably mounted on the mounting bracket, and the upper temporary storage frame and the lower temporary storage frame have the same structure; the upper temporary storage frame and the lower temporary storage frame are respectively connected with a sliding driving mechanism which is used for driving the corresponding upper temporary storage frame and lower temporary storage frame to move, the upper temporary storage frame is provided with a plurality of storage layers, and a feeding box is placed on each storage layer. A plurality of storage layers are arranged on each temporary storage frame, so that a plurality of feeding boxes can be transferred at the same time, the time is saved, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of insect breeding equipment, and in particular relates to a rack buffer device for an environmental insect cyclic breeding equipment. Background Technology

[0002] Raising scavenging insects such as fly larvae and black soldier flies to process kitchen waste and livestock manure has become a preferred solution for kitchen waste treatment plants and livestock companies in recent years. This is mainly because the biological transformation of scavenging insects converts the organic matter in kitchen waste and livestock manure into nutrient-rich products. At the same time, the dried larvae of these insects are rich in protein and various amino acids, making them a nutritious feed that can be used in the breeding of livestock, poultry, and fish to improve egg production and weight gain.

[0003] Currently, the methods and equipment for breeding scavenging insects have become quite mature. Chinese utility model patent application number 202220955855.X discloses an automatic breeding system for black soldier flies. The system uses a feeding box conveying device with a gripping arm on one side and a multi-layer support frame on the other side. The gripping arm is used to remove the feeding boxes from the breeding frame and convey them to the support frame on the other side. After each layer of support frame has a feeding box, the conveying device will transport the feeding boxes to the next station.

[0004] This type of gripper arm can only grip one breeding box at a time, and there is only one conveying device. It is impossible to perform other work at the same time during the transfer of breeding boxes, resulting in low transfer efficiency. Especially for insects with short growth cycles such as fly larvae, it is very easy to miss the best collection time. Utility Model Content

[0005] The main technical problem to be solved by this utility model is to provide a rack buffer device for an environmental insect recirculation breeding equipment. It adopts two sliding drive mechanisms to drive the upper and lower buffer racks respectively, so that the two buffer racks can perform different operations at the same time. Each buffer rack is provided with multiple storage layers, which can simultaneously move multiple breeding boxes, saving time and improving work efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A rack buffer device for an environmental insect recirculation breeding equipment includes a mounting bracket, on which an upper buffer rack and a lower buffer rack are movably mounted. The upper and lower buffer racks have the same structure. A sliding drive mechanism is connected to each of the upper and lower buffer racks to drive the corresponding upper and lower buffer racks to move. The upper buffer rack is provided with multiple storage layers, and a breeding box is placed on each storage layer.

[0008] The following are further optimizations of the above technical solution by this utility model:

[0009] The upper buffer rack includes two parallel rectangular side plates. Guide wheels are fixedly installed on the outer side of the side plates near the four vertices. The guide wheels have grooves. Guide rails are provided on the mounting bracket at positions corresponding to the guide wheels. The guide rails pass through the upper and lower ends of the mounting bracket. The guide wheels cooperate with the guide rails through the grooves.

[0010] Further optimization: A tray is fixedly installed on the inner side of the side panel. Multiple trays are evenly spaced along the vertical direction. The height positions of the multiple trays on both side panels correspond one-to-one. The bottom of the tray is bent horizontally inward to form multiple storage layers.

[0011] Further optimization: The sliding drive mechanism includes a sliding drive motor, which is fixedly mounted on the top of the mounting bracket. The power output end of the sliding drive motor is connected to an upper synchronous shaft, which is rotatably mounted on the top of the mounting bracket.

[0012] Further optimization: A lower synchronous shaft is rotatably mounted at the bottom of the mounting bracket, corresponding to the position of the upper synchronous shaft. A transmission device is mounted on the upper synchronous shaft. The upper and lower synchronous shafts are connected by the transmission device, which is fixedly connected to the side plate.

[0013] Further optimization: The mounting bracket is equipped with two horizontal conveying mechanisms, which are used to drive the feeding boxes on the upper and lower buffer racks to move horizontally. The horizontal conveying mechanism includes a rectangular base plate, which is fixedly connected to the mounting bracket. Two conveying components are provided on the upper surface of the base plate.

[0014] Further optimization: The conveying assembly includes two fixed plates, which are arranged parallel to each other along the width of the base plate. The bottom of the fixed plate is fixedly connected to the upper surface of the base plate. Mounting holes are opened at both ends of the top of the fixed plate. A drive roller and a driven roller are rotatably installed in the mounting holes at both ends, and a conveyor belt is drivenly connected to the drive roller and the driven roller.

[0015] Further optimization: A conveyor drive motor is fixedly installed at the bottom of the base plate, and a conveyor shaft is set above the base plate. The drive rollers of the two conveyor components are fixedly connected through the conveyor shaft, and the power output end of the conveyor drive motor is connected to the conveyor shaft for transmission.

[0016] Further optimization: Position sensors are fixedly installed at the upper and lower ends of the corresponding guide rail on the mounting bracket.

[0017] The present invention adopts the above technical solution and has the following beneficial effects:

[0018] The buffer rack of this utility model is provided with multiple storage layers, and the external feeding box transfer device is also provided with the same number of storage layers. The two work together to receive and transfer multiple feeding boxes at the same time, realize batch operation, and save operation time.

[0019] This utility model is equipped with two buffer racks, one upper and one lower, and two sets of sliding drive mechanisms to control the two buffer racks to move independently without interfering with each other. It works in conjunction with the external material pouring and filling device to form a work cycle and further improve work efficiency.

[0020] This invention features position sensors at both the upper and lower ends of the mounting bracket to sense the extreme positions of the upper and lower buffer racks, enabling more precise control of the buffer rack movement.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] Figure 1 This is a front view of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is a perspective view of the overall structure of an embodiment of the present utility model;

[0024] Figure 3 This is a perspective view of the upper buffer rack of this utility model;

[0025] Figure 4 This is a perspective view of the sliding drive mechanism of this utility model;

[0026] Figure 5 This is a perspective view of the overall installation of the horizontal conveying mechanism of this utility model;

[0027] Figure 6 This is a front view of the horizontal conveying mechanism of this utility model;

[0028] Figure 7 This is a top view of the horizontal conveying mechanism of this utility model;

[0029] Figure 8 This is a front view of the installation of the buffer device of this utility model in an environmental insect breeding equipment.

[0030] In the diagram: 1. Mounting bracket; 2. Guide rail; 3. Feeding box; 4. Upper buffer rack; 401. Side plate; 402. Guide wheel; 403. Isolation plate; 404. Support plate; 405. Shelf; 406. Connecting rod; 5. Sliding drive mechanism; 501. Sliding drive motor; 502. Reducer; 503. Upper synchronous shaft; 504. Lower synchronous shaft; 505. Sliding transmission wheel; 506. Transmission device; 507. Sliding drive wheel; 508. Sliding driven wheel; 6. Horizontal transmission mechanism; 601. 602. Base plate; 603. Conveyor drive motor; 604. Conveyor drive wheel; 605. Conveyor driven wheel; 606. Conveyor assembly; 6061. Fixing plate; 6062. Drive roller; 6063. Driven roller; 6064. Conveyor belt; 6065. Star wheel; 6066. Reinforcing rod; 6067. Support plate; 7. Position sensor; 8. Upper conveyor line; 9. Lower conveyor line; 10. Tilting and unloading device; 11. Vertical conveying mechanism; 12. Filling mechanism; 13. Lower buffer rack. Detailed Implementation

[0031] like Figure 1-3 As shown, a rack buffer device for an environmental insect recirculation breeding equipment includes a mounting bracket 1. An upper buffer rack 4 and a lower buffer rack 13 are movably mounted on the mounting bracket 1. The upper buffer rack 4 and the lower buffer rack 13 have the same structure and are arranged vertically. The upper buffer rack 4 includes two parallel rectangular side plates 401. Guide wheels 402 are fixedly mounted on the outer side of the side plates 401 near the four vertices. The guide wheels 402 have grooves. A guide rail 2 is provided on the mounting bracket 1 at a position corresponding to the guide wheels 402. The guide rail 2 passes through the upper and lower ends of the mounting bracket 1. The guide wheels 402 cooperate with the guide rail 2 through the grooves, so that the upper buffer rack 4 and the lower buffer rack 13 can move along the vertical direction of the mounting bracket 1. In order to further improve the stability of the movement of the upper buffer rack 4 and the lower buffer rack 13, two more guide wheels 402 can be added at the middle position of each side plate 401.

[0032] Multiple trays 404 are fixedly installed on the inner side of the side panel 401. The multiple trays 404 are evenly spaced along the vertical direction. The height positions of the trays 404 on the two side panels 401 correspond one to one. The bottom of the trays 404 is bent inward to form a storage layer 405. A feeding box 3 is placed on each storage layer 405.

[0033] The distance between the vertical edges of the two left and right trays 404 is greater than the length of the feeding box 3, while the distance between the horizontal bends is less than the length of the feeding box 3, ensuring that the feeding box 3 can be placed stably on the shelf 405. The distance between the upper and lower trays 404 is greater than the height of the feeding box 3, ensuring that the feeding box 3 can move horizontally on the shelf 405.

[0034] Several connecting rods 406 are provided on the upper buffer frame 4 near the upper and lower ends. The two ends of the connecting rods 406 are fixedly connected to the two side plates 401 respectively, connecting the two side plates 401 into a whole.

[0035] In this embodiment, the upper buffer rack 4 moves up and down within the range from the midpoint to the upper end point of the guide rail 2, and the lower buffer rack 13 moves up and down within the range from the midpoint to the lower end point of the guide rail 2. In this way, the upper buffer rack 4 and the lower buffer rack 13 can move simultaneously within their respective ranges without interfering with each other.

[0036] Position sensors 7 are fixedly installed on the mounting bracket 1 at the upper and lower ends of the guide rail 2 respectively. The position sensors 7 are proximity sensors. When the upper buffer rack 4 moves upward or the lower buffer rack 13 moves downward to the limit position, the position sensor 7 receives the signal and transmits it to the peripheral control system. The control system controls the upper buffer rack 4 or the lower buffer rack 13 to stop moving, so that the movement of the upper buffer rack 4 and the lower buffer rack 13 can be controlled more precisely.

[0037] like Figure 4 As shown, in order to ensure that the upper buffer shelf 4 and the lower buffer shelf 13 can operate independently without interfering with each other, the feeding box buffer device of this utility model also includes two sliding drive mechanisms 5, which are used to drive the upper buffer shelf 4 and the lower buffer shelf 13 to move up and down respectively.

[0038] The sliding drive mechanism 5 includes a sliding drive motor 501. The power output end of the sliding drive motor 501 is connected to a reducer 502. The sliding drive motor 501 is fixedly installed on the top of the mounting bracket 1 through the reducer 502. The sliding drive motors 501 and reducers 502 of the two sets of sliding drive mechanisms 5 are symmetrically installed on both sides of the top of the mounting bracket 1.

[0039] In this embodiment, the reducer 502 is a prior art technology. The reducer 502 is used on the one hand to reduce the speed and increase the torque of the rotational power output by the sliding drive motor 501, so as to ensure that the upper buffer frame 4 and the lower buffer frame 13 can be driven up and down with a smaller driving force. On the other hand, it is used to change the transmission direction of the rotational power output by the sliding drive motor 501 to facilitate the arrangement and installation of other transmission components.

[0040] The power output end of the reducer 502 is connected to a sliding drive wheel 507. An upper synchronous shaft 503 is rotatably mounted on the top of the mounting bracket 1. A sliding driven wheel 508 is fixedly mounted on the upper synchronous shaft 503 at a position corresponding to the sliding drive wheel 507. The sliding drive wheel 507 and the sliding driven wheel 508 are connected in a transmission manner.

[0041] In this embodiment, the transmission connection between the sliding drive wheel 507 and the sliding driven wheel 508 can be one of belt drive, chain drive or gear drive, used to transmit the rotational power output by the sliding drive motor 501 to the upper synchronous shaft 503.

[0042] A lower synchronous shaft 504 is rotatably mounted on the bottom of the mounting bracket 1, corresponding to the position of the upper synchronous shaft 503. The upper synchronous shaft 503 and the lower synchronous shaft 504 have the same structure, and sliding transmission wheels 505 are fixedly mounted at both ends. A transmission device 506 is connected to the sliding transmission wheels 505 at both ends of the upper synchronous shaft 503. The transmission device 506 connects the corresponding sliding transmission wheels 505 on the upper synchronous shaft 503 and the lower synchronous shaft 504.

[0043] In this embodiment, the transmission device 506 is selected from either a transmission belt or a transmission chain, and correspondingly, the sliding transmission wheel 505 is selected from either a pulley or a sprocket, which drives the upper synchronous shaft 503 and the lower synchronous shaft 504.

[0044] In this embodiment, the connection between the upper synchronous shaft 503 and the lower synchronous shaft 504 and the mounting bracket 1 can be one of bearing housing, bearing, or bushing structure, so that the upper synchronous shaft 503 and the lower synchronous shaft 504 can rotate freely on the mounting bracket 1.

[0045] In the sliding drive mechanism 5 corresponding to the upper buffer frame 4, two transmission devices 506 are respectively fixedly installed on the inner side of the two side plates 401 in the upper buffer frame 4. An isolation plate 403 is fixedly installed between the side plate 401 and the support plate 404. The isolation plate 403 separates the transmission device 506 and the feeding box 3 to prevent contaminants from splashing into the feeding box 3 during the operation of the transmission device 506, thus ensuring the cleanliness of the feeding box 3. The rotation of the upper synchronous shaft 503 drives the transmission device 506 to make linear motion in the up and down direction, thereby driving the upper buffer frame 4 to move up and down.

[0046] Correspondingly, in the sliding drive mechanism 5 corresponding to the lower buffer frame 13, two transmission devices 506 are respectively fixedly installed on the inner side of the two side plates 401 in the lower buffer frame 13, driving the lower buffer frame 13 to move up and down.

[0047] like Figure 5 As shown, a horizontal conveying mechanism 6 is fixedly installed on the mounting bracket 1 at the midpoint of the moving range of the upper buffer shelf 4. Correspondingly, a horizontal conveying mechanism 6 is also fixedly installed at the midpoint of the moving range of the lower buffer shelf 13. These mechanisms are used to drive the feeding boxes 3 on the upper buffer shelf 4 and the lower buffer shelf 13 to move horizontally, respectively.

[0048] like Figure 6-7As shown, the horizontal conveying mechanism 6 includes a rectangular base plate 601. The length dimension of the base plate 601 is smaller than the distance between the bottom horizontal bends of the two side plates 401 of the upper buffer frame 4, ensuring that the upper buffer frame 4 and the lower buffer frame 13 will not interfere with the base plate 601 when they move up and down. The two long sides of the base plate 601 are bent downwards, and the bends extend to both ends along the length direction and are fixedly connected to the mounting bracket 1 to form a frame structure.

[0049] Two conveying assemblies 606 are provided at both ends of the upper surface of the base plate 601 along the length direction. The conveying assembly 606 includes two fixing plates 6061. The two fixing plates 6061 are arranged parallel to each other along the width direction of the base plate 601. The bottom of the fixing plate 6061 is fixedly connected to the upper surface of the base plate 601. Mounting holes are opened at both ends of the top of the fixing plate 6061. A drive roller 6062 and a driven roller 6063 are respectively rotatably installed in the mounting holes at both ends.

[0050] A conveyor belt 6064 is connected to the drive roller 6062 and the driven roller 6063. The upper surface of the conveyor belt 6064 is higher than the top of the fixed plate 6061, ensuring that only the conveyor belt 6064 contacts the bottom surface of the feeding box 3 during horizontal conveying, making the conveying smoother. A star wheel 6065 is fixedly installed in the middle part of the drive roller 6062 to prevent the conveyor belt 6064 from slipping.

[0051] Several reinforcing rods 6066 are provided on the fixed plate 6061 at the position between the driving roller 6062 and the driven roller 6063. The reinforcing rods 6066 are parallel to the driving roller 6062 and their two ends are fixedly connected to the fixed plate 6061 respectively. They are used to enhance the overall structural strength of the conveying assembly 606. A belt support plate 6067 is also fixedly installed between the two fixed plates 6061 near the top. The upper surface of the belt support plate 6067 is in contact with the conveyor belt 6064 to prevent the middle section of the conveyor belt 6064 from deforming and sagging, which would affect the conveying effect.

[0052] A transmission drive motor 602 is fixedly installed at the bottom of the base plate 601. The power output end of the transmission drive motor 602 is connected to the transmission drive wheel 604. A transmission shaft 603 is provided above the base plate 601. A transmission driven wheel 605 is fixedly installed on the transmission shaft 603 at a position corresponding to the transmission drive wheel 604. The transmission drive wheel 604 and the transmission driven wheel 605 are connected in a transmission manner.

[0053] In this embodiment, the transmission connection between the transmission drive wheel 604 and the transmission driven wheel 605 can be one of belt drive, chain drive or gear drive, used to transmit the rotational power output by the transmission drive motor 602 to the transmission shaft 603.

[0054] The active rollers 6062 of the two conveying components 606 are fixedly connected by the conveying shaft 603 to ensure that the two conveying components 606 can operate synchronously. The active rollers 6062 rotate with the conveying shaft 603, driving the conveyor belt 6064 to move horizontally, thus completing the horizontal conveying of the feeding box 3.

[0055] like Figure 8 As shown, the buffer device of this utility model is installed and applied in an environmental insect breeding equipment. The environmental insect breeding equipment is equipped with an upper conveyor line 8 and a lower conveyor line 9. The height position of the upper conveyor line 8 corresponds to the upper horizontal conveyor mechanism 6, and the height position of the lower conveyor line 9 corresponds to the lower horizontal conveyor mechanism 6. A turning and dumping device 10 is provided at the end of the upper conveyor line 8. A vertical conveyor mechanism 11 is provided downstream of the turning and dumping device 10. A filling mechanism 12 is provided at the bottom of the vertical conveyor mechanism 11. The height of the filling mechanism 12 corresponds to the lower conveyor line 9. In this way, a circulation loop is formed with the upper buffer frame 4 and the lower buffer frame 13 to realize the cyclic dumping and filling operation of the feeding box 3.

[0056] Initially, the upper buffer rack 4 is located at the top of the mounting bracket 1. The breeding boxes 3 that have completed breeding are loaded into the upper buffer rack 4 in batches, ensuring that there is one breeding box 3 on each shelf 405 of the upper buffer rack 4. The sliding drive motor 501 corresponding to the upper buffer rack 4 is activated, driving the upper buffer rack 4 to move downward. The breeding boxes 3 at the bottom layer first come into contact with the conveyor belt 6064 in the horizontal conveyor mechanism 6. The conveyor drive motor 602 is activated, driving the conveyor belt 6064 to move horizontally, and horizontally conveying the breeding boxes 3 to the upper conveyor line 8. As the upper buffer rack 4 moves downward, the breeding boxes 3 on each shelf 405 are sequentially conveyed to the upper conveyor line 8.

[0057] The feeding box 3 containing materials is conveyed to the turning and unloading device 10 via the upper conveyor line 8 to complete the turning and unloading operation. After the turning and unloading operation is completed, the empty feeding box 3 is conveyed downward to the filling mechanism 12 via the vertical conveyor 11. The filling mechanism 12 fills the feeding box with feed and insect seedlings. After filling is completed, the feeding box 3 is conveyed horizontally to the lower buffer rack 13 via the lower conveyor line 9.

[0058] Corresponding to the upper buffer rack 4, initially, the lower buffer rack 13 is located at the bottom of the mounting bracket 1. The feeding boxes 3 on the lower conveyor line 9 are first loaded into the top shelf 405 of the lower buffer rack 13. As the lower buffer rack 13 moves upward, each shelf 405 is loaded with feeding boxes 3 in sequence. These feeding boxes 3 are transported back to the external feeding device in batches for the breeding of a new batch of seedlings.

[0059] With this design, the feeding boxes 3 in the external feeding equipment can be transported out and fed in in batches, saving working time. At the same time, the upper buffer rack 4 and the lower buffer rack 13 operate separately, forming a cycle for the feeding box 3 to pour and fill, reducing the idle waiting time of the working parts, further improving work efficiency, and ensuring that the insects after the breeding is completed can be collected in a timely manner.

[0060] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.

Claims

1. A rack buffer device for an environmental insect recirculation breeding equipment, comprising a mounting bracket (1), on which an upper buffer rack (4) and a lower buffer rack (13) are movably mounted, the upper buffer rack (4) and the lower buffer rack (13) having the same structure, characterized in that: A sliding drive mechanism (5) is connected to the upper cache rack (4) and the lower cache rack (13) respectively, which is used to drive the corresponding upper cache rack (4) and lower cache rack (13) to move. The upper cache rack (4) is provided with multiple storage layers (405), and a feeding box (3) is placed on each storage layer (405).

2. The rack buffer device of the environmental insect recirculation breeding equipment according to claim 1, characterized in that: The upper buffer rack (4) includes two rectangular side plates (401) arranged in parallel and spaced apart. Guide wheels (402) are fixedly installed on the outer side of the side plates (401) near the four vertices. The guide wheels (402) have grooves. The mounting bracket (1) is provided with a guide rail (2) at the position corresponding to the guide wheel (402). The guide rail (2) passes through the upper and lower ends of the mounting bracket (1). The guide wheel (402) cooperates with the guide rail (2) through the groove.

3. The rack buffer device for an environmental insect recirculation breeding equipment according to claim 2, characterized in that: A tray (404) is fixedly installed on the inner side of the side panel (401). Multiple trays (404) are evenly spaced along the vertical direction. The height positions of the multiple trays (404) on the two side panels (401) correspond one to one. The bottom of the tray (404) is bent laterally inward to form multiple storage layers (405).

4. The rack buffer device for an environmental insect recirculation breeding equipment according to claim 3, characterized in that: The sliding drive mechanism (5) includes a sliding drive motor (501), which is fixedly installed on the top of the mounting bracket (1). The power output end of the sliding drive motor (501) is connected to an upper synchronous shaft (503), which is rotatably installed on the top of the mounting bracket (1).

5. The rack buffer device for an environmental insect recirculation breeding equipment according to claim 4, characterized in that: The mounting bracket (1) has a lower synchronous shaft (504) rotatably mounted at the bottom corresponding to the upper synchronous shaft (503). A transmission device (506) is mounted on the upper synchronous shaft (503). The upper synchronous shaft (503) and the lower synchronous shaft (504) are connected by the transmission device (506). The transmission device (506) is fixedly connected to the side plate (401).

6. The bracket buffer device for an environmental insect recirculation breeding equipment according to claim 5, characterized in that: The mounting bracket (1) is provided with two horizontal conveying mechanisms (6), which are used to drive the feeding boxes (3) on the upper buffer frame (4) and the lower buffer frame (13) to move horizontally. The horizontal conveying mechanism (6) includes a rectangular base plate (601), which is fixedly connected to the mounting bracket (1). Two conveying components (606) are provided on the upper surface of the base plate (601).

7. The rack buffer device for an environmental insect recirculation breeding equipment according to claim 6, characterized in that: The conveying assembly (606) includes two fixed plates (6061). The two fixed plates (6061) are arranged parallel to each other along the width direction of the base plate (601). The bottom of the fixed plate (6061) is fixedly connected to the upper surface of the base plate (601). Mounting holes are opened at both ends of the top of the fixed plate (6061). A drive roller (6062) and a driven roller (6063) are rotatably installed in the mounting holes at both ends, respectively. A conveyor belt (6064) is connected to the drive roller (6062) and the driven roller (6063) for transmission.

8. The rack buffer device for an environmental insect recirculation breeding equipment according to claim 7, characterized in that: A conveyor drive motor (602) is fixedly installed at the bottom of the base plate (601), and a conveyor shaft (603) is provided above the base plate (601). The drive rollers (6062) of the two conveyor components (606) are fixedly connected through the conveyor shaft (603), and the power output end of the conveyor drive motor (602) is connected to the conveyor shaft (603) for transmission.

9. The rack buffer device for an environmental insect recirculation breeding equipment according to claim 8, characterized in that: Position sensors (7) are fixedly installed at the upper and lower ends of the mounting bracket (1) corresponding to the guide rail (2).

Images