Modularized packaging line transfer placing device

Abstract

The invention relates to the technical field of automobile packaging, in particular to a modularized packaging line transfer placing device which comprises a main frame and a bumper, first inserting grooves are symmetrically and fixedly connected to the bottom end of the main frame, and mounting plates are symmetrically and fixedly connected to the inner wall of the bottom end of the main frame; placing assemblies for positioning and placing the bumper are uniformly arranged at the two ends of the main frame, and anti-jumping assemblies for locking the bumper are symmetrically arranged at the top end of the main frame. According to the device, a user can conveniently and accurately position the bumper, part taking work of a mechanical arm is facilitated, the working time can be greatly shortened, the working efficiency is improved, the device can be suitable for different mechanical arms through modular installation, the adaptability of the device in use is improved, and the use cost of the user is reduced.

Description

Technical Field

[0001] This invention relates to the field of automotive packaging technology, specifically a modular packaging line transfer and placement device. Background Technology

[0002] In the packaging of car rear bumpers, the rear bumpers are usually packed manually. The packaging process requires a lot of manpower and time. However, manual packaging is usually not neat enough. Therefore, a semi-automated packaging production line is adopted to ensure the efficiency and neatness of the car rear bumper packaging. The main method is to use a robotic arm to move the car rear bumper to the packaging position of the packing machine, thereby achieving efficient and aesthetically pleasing packaging. Currently, some automotive rear bumper packaging lines do not have dedicated placement devices to assist robotic arms in picking up parts. Typically, the rear bumpers are manually placed in the robotic arm's picking position, resulting in insufficient picking accuracy for the robotic arm and requiring manual assistance. This wastes time and severely impacts work efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a modular transshipment and placement device for packaging lines, addressing the problem mentioned in the background art that some existing automotive rear bumper packaging lines lack a dedicated placement device for robotic arm retrieval. Typically, the rear bumper is manually placed at the robotic arm's retrieval position, resulting in insufficient retrieval accuracy and requiring manual assistance, thus wasting time and severely impacting work efficiency. This solution not only facilitates precise positioning of the bumper for easy robotic arm retrieval but also significantly reduces working time and improves efficiency. Furthermore, its modular installation adapts to different robotic arms, enhancing the device's versatility and reducing user costs.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a modular packaging line transfer and placement device, comprising a main frame and a bumper, wherein a first slot is symmetrically fixedly connected to the bottom end of the main frame, and an mounting plate is symmetrically fixedly connected to the inner wall of the bottom end of the main frame, and placement components for positioning and placing the bumper are evenly arranged at both ends of the main frame, and anti-jump components for locking the bumper are symmetrically arranged at the top end of the main frame.

[0005] Preferably, the placement assembly includes a placement frame, with the top of the mounting plate bolted to the placement frame. Support plates are uniformly fixedly connected to one side of the placement frame. Second rotating rods are uniformly connected inside the placement frame via bearings. Placement plates are uniformly arranged inside the placement frame, with the middle portions of each placement plate fixedly connected to the second rotating rods. A positioning block for positioning is fixedly connected to one end of each placement plate, and a counterweight rod is fixedly connected to the other end of each placement plate. A support rod is fixedly connected to the bottom of the placement frame. One end of a set of placement plates is in contact with the support rod. Counterweight rings are uniformly fitted onto the surface of the counterweight rod. A linkage assembly is provided between the counterweight rods, enabling precise placement of the bumper and facilitating subsequent robotic arm retrieval.

[0006] Preferably, the top of the main frame is symmetrically provided with reinforcing plates, and the top of the placement rack is connected to the reinforcing plates by bolts to improve the stability between the placement racks.

[0007] Preferably, the placement rack and the support plate are integrally formed to improve the stability of the placement rack.

[0008] Preferably, the linkage component includes linkage plates. Four sets of linkage plates are provided on one side of the placement rack. The bottom end of the linkage plate is connected to one end of the counterweight rod through a bearing. Each set of the placement rack is equipped with five sets of counterweight rods and four sets of linkage plates. The top end of the linkage plate is provided with a sliding groove, and the sliding groove is slidably connected to the counterweight rod, so that the placement plates on each set of the placement rack can be connected in series, thereby enabling them to be linked.

[0009] Preferably, the two ends of the bumper are located at the top of the placement plate, and the two ends of the bumper are slidably connected to the positioning block, which enables precise positioning and locking of the bumper.

[0010] Preferably, the anti-jump component includes a locking plate. A locking plate is symmetrically fixedly connected to one side of the top of the main frame, and a support member is symmetrically fixedly connected to the other side of the top of the main frame. A first rotating rod is symmetrically arranged at the top of the main frame, with one end of the first rotating rod located inside the support member. An elliptical locking rod is fixedly connected to the other end of the first rotating rod. A rotating groove is opened on one side of the locking plate. A measuring plate is fixedly connected to both ends of the first rotating rod. A pull rod is provided at one end of the first rotating rod, and both ends of the pull rod are respectively fixedly connected to one end of the measuring plate. A locking block is fixedly connected to one end of a set of measuring plates. A second slot is opened at one end of the locking plate. A handle rod passing through the second slot is provided at one end of the locking plate. One end of the handle rod is slidably connected to the locking block, improving the stability and robustness of the bumper when the device moves.

[0011] Preferably, the rotating groove is a circular groove with an open top, the locking rod is rotatably connected to the rotating groove, the minimum diameter of the locking rod is adapted to the opening size at the top of the rotating groove, and one end of the first rotating rod is slidably connected to one end of the support member, which facilitates locking the first rotating rod and the pull rod at the top of the main frame, thereby locking the bumper and improving the safety of the device's movement.

[0012] Preferably, one end of the handle is fixedly connected to a magnet for securing with the lock block, preventing the handle from falling off automatically.

[0013] Compared with the prior art, the beneficial effects of the present invention are: The first slot facilitates forklift movement of the device. This modular installation allows for the use of different sized placement components to accommodate bumpers of varying sizes, thus improving adaptability and reducing operating costs. During use, the user first removes the anti-jump component, allowing for easy placement of the bumper inside the main frame. Then, the bumpers are placed layer by layer from bottom to top, with both ends positioned on top of the bottom placement plate. Positioning blocks ensure precise positioning of the bumpers. Two sets of placement plates on either side of the main frame support the bumpers within the frame. During placement, the weight of the second slot ensures the bumpers are properly positioned. The placement plate rotates around the second rotating rod, causing one end of the placement plate to no longer be in contact with the support rod, until one end of the placement plate is in contact with the support plate. The support plate then supports the placement plate, which is now horizontal. The end of the placement plate with the positioning block rotates downwards, while the end with the counterweight rod and counterweight ring rotates upwards. At this point, one end of the placement plate moves the counterweight rod and the linkage plate upwards. The inner wall of the bottom of the slide groove at the top of the linkage plate pushes another set of counterweight rods upwards, causing the placement plate to rotate. After the first set of bumpers is placed, the second set of placement plates is nearly horizontal. The user then gradually places the next set of bumpers, and so on, layer by layer. Simply place the bumper, then insert one end of the first rotating rod into the support member for support. After the user stands the first rotating rod, the test plate, and the pull rod upright, the locking rod enters the slot. Then, push the pull rod and the first rotating rod to one side of the support member, so that one end of the first rotating rod inserts into the support member. Rotate the pull rod and the test plate 90 degrees to the side they are close to each other. At this point, both sets of pull rods and test plates are at the top of the reinforcing plate. The user then inserts one end of the handle rod through the second slot into the lock block, completing the locking process. The bumper is locked by the test plate and pull rod, preventing it from loosening or falling off during the movement of the device. After moving the device to the desired position using a forklift... Pull out the handle, rotate the measuring plate and pull rod 90 degrees, and then remove them. At this point, the robotic arm can move the bumpers from top to bottom. After the top layer of bumpers is removed, one end of the placement plate moves downward under the action of the counterweight ring. The placement plate drives one side of the positioning block to move upward, thus preventing the placement plate from obstructing the removal of the next set of bumpers. This process is repeated to remove all the bumpers. This device not only facilitates precise positioning of bumpers for users and makes it easier for the robotic arm to pick up parts, but also greatly shortens working time and improves work efficiency. Furthermore, its modular installation makes it suitable for different robotic arms, improving the adaptability of the device and reducing user costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2This is a three-dimensional schematic diagram of the locking plate, support member, and first rotating rod in this invention; Figure 3 This is a three-dimensional cross-sectional view of the anti-jump component in this invention; Figure 4 This is a three-dimensional schematic diagram of the back of the component placement area in this invention; Figure 5 This is a frontal perspective view of the component placement in this invention; Figure 6 This is a three-dimensional schematic diagram of the linkage component in this invention; Figure 7 This is a three-dimensional schematic diagram of the component placed after the bumper is placed in this invention; Figure 8 This is a three-dimensional schematic diagram of the present invention after the bumper has been placed; Figure 9 This is a three-dimensional schematic diagram of the bumper and mounting plate in this invention.

[0015] In the diagram: 1. Main frame; 2. First slot; 3. Mounting plate; 4. Placement rack; 5. Reinforcing plate; 6. Locking plate; 7. Support component; 8. First rotating rod; 9. Rotary groove; 10. Locking rod; 11. Measuring plate; 12. Pull rod; 13. Locking block; 14. Second slot; 15. Handle rod; 16. Second rotating rod; 17. Placement plate; 18. Positioning block; 19. Support rod; 20. Counterweight rod; 21. Counterweight ring; 22. Linkage plate; 23. Support plate; 24. Bumper. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-9 One embodiment provided by the present invention: A modular packaging line transfer and placement device includes a main frame 1 and a bumper 24. The bottom end of the main frame 1 is symmetrically fixedly connected with a first slot 2. The inner wall of the bottom end of the main frame 1 is symmetrically fixedly connected with a mounting plate 3. Placement components for positioning and placing the bumper 24 are evenly arranged at both ends of the main frame 1. Anti-jump components for locking the bumper 24 are symmetrically arranged at the top end of the main frame 1. Please see Figures 1-7In this embodiment, the placement component includes a placement frame 4. The top of the mounting plate 3 is bolted to the placement frame 4. A support plate 23 is evenly fixedly connected to one side of the placement frame 4. A second rotating rod 16 is evenly connected to the inside of the placement frame 4 through bearings. Placement plates 17 are evenly arranged inside the placement frame 4, and the middle part of the placement plates 17 is fixedly connected to the second rotating rod 16. A positioning block 18 for positioning is fixedly connected to one end of the placement plate 17. A counterweight rod 20 is fixedly connected to the other end of the placement plate 17. A support rod 19 is fixedly connected to the bottom of the placement frame 4. One end of a set of placement plates 17 is in contact with the support rod 19. A counterweight ring 21 is evenly sleeved on the surface of the counterweight rod 20. A linkage component is provided between the counterweight rods 20, which can accurately place the bumper 24, facilitating the subsequent robotic arm picking operation. In this embodiment, the linkage component includes a linkage plate 22. Four sets of linkage plates 22 are provided on one side of the placement frame 4. The bottom end of the linkage plate 22 is connected to one end of the counterweight rod 20 through a bearing. Each placement frame 4 is equipped with five sets of counterweight rods 20 and four sets of linkage plates 22. The top end of the linkage plate 22 is provided with a sliding groove, and the sliding groove is slidably connected to the counterweight rod 20, so that the placement plates 17 on each placement frame 4 can be connected in series, thereby enabling them to be linked. After removing the anti-jump component, the user places the bumper 24 layer by layer from bottom to top, placing both ends of the bumper 24 on top of the bottommost placement plate 17. Simultaneously, the positioning block 18 allows for precise positioning of the bumper 24. At this point, the two sets of placement plates 17 on both sides of the main frame 1 support the bumper 24 inside the main frame 1. During placement, the weight of the second slot 14 causes the placement plate 17 to rotate around the second rotating rod 16, causing one end of the placement plate 17 to no longer be in contact with the support rod 19, until one end of the placement plate 17 is in contact with the support plate 23. The support plate 23 then provides support. The placement plate 17 provides support and is in a horizontal state. The end of the placement plate 17 with the positioning block 18 rotates downward and the end of the placement plate 17 with the counterweight rod 20 and counterweight ring 21 rotates upward. At this time, the end of the placement plate 17 drives the counterweight rod 20 and the linkage plate 22 to move upward. The inner wall of the bottom of the top groove of the linkage plate 22 pushes another set of counterweight rods 20 to move upward, so that the placement plate 17 performs a circular motion. After the first set of bumpers 24 is placed, the second set of placement plates 17 is in a nearly horizontal state. Then the user gradually places another set of bumpers 24, and so on, placing the bumpers 24 layer by layer. Please see Figures 1-3In this embodiment, the anti-jump component includes a locking plate 6. The locking plate 6 is symmetrically fixedly connected to one side of the top of the main frame 1, and the support member 7 is symmetrically fixedly connected to the other side of the top of the main frame 1. The top of the main frame 1 is symmetrically provided with a first rotating rod 8, and one end of the first rotating rod 8 is located inside the support member 7. The other end of the first rotating rod 8 is fixedly connected to an elliptical locking rod 10. A rotating groove 9 is opened on one side of the locking plate 6. Both ends of the first rotating rod 8 are fixedly connected to a measuring plate 11. A pull rod 12 is provided at one end of the first rotating rod 8, and both ends of the pull rod 12 are fixedly connected to one end of the measuring plate 11 respectively. A locking block 13 is fixedly connected to one end of a set of measuring plates 11. A second slot 14 is opened at one end of the locking plate 6. A handle rod 15 passing through the second slot 14 is provided at one end of the locking plate 6. One end of the handle rod 15 is slidably connected to the locking block 13, which improves the stability and firmness of the bumper 24 when the device moves. The user pulls the handle 15, removing it from inside the locking block 13 and the second slot 14. The user then lifts the lever 12 upwards, causing the measuring plate 11 and the first rotating rod 8 to rotate 90 degrees. The user then pushes the lever 12 to one side of the locking plate 6, so that one end of the first rotating rod 8 is no longer inside the support member 7. At this point, the minimum dimension of the locking rod 10 aligns with the opening of the rotating slot 9. The user lifts the lever 12 to remove the measuring plate 11 and the first rotating rod 8. After placing the bumper 24, the user inserts one end of the first rotating rod 8 into the support member 7 for support. The user then... After the first rotating rod 8, the measuring plate 11, and the pull rod 12 are erected, the locking rod 10 enters the rotating groove 9. Then, the pull rod 12 and the first rotating rod 8 are pushed to one side of the support member 7, so that one end of the first rotating rod 8 is inserted into the support member 7. The pull rod 12 and the measuring plate 11 are rotated 90 degrees to the side that are close to each other. At this time, the two sets of pull rods 12 and measuring plates 11 are located at the top of the reinforcing plate 5. The user then inserts one end of the handle rod 15 through the second slot 14 into the inside of the locking block 13. At this time, the locking is completed. The bumper 24 can be locked by the measuring plate 11 and the pull rod 12 to prevent the bumper 24 from becoming loose or falling off during the movement of this device. It should be noted that the top of the main frame 1 is symmetrically provided with reinforcing plates 5, and the top of the placement frame 4 is connected to the reinforcing plates 5 by bolts to improve the stability of the placement frame 4. The placement frame 4 and the support plate 23 are integrally formed to improve the firmness of the placement frame 4. The two ends of the bumper 24 are respectively located at the top of the placement plate 17. The two ends of the bumper 24 are slidably connected to the positioning block 18, which can accurately position and lock the bumper 24. The rotating groove 9 is a circular groove with an open top. The locking rod 10 is rotatably connected to the rotating groove 9. The minimum diameter of the locking rod 10 is adapted to the opening size at the top of the rotating groove 9. One end of the first rotating rod 8 is slidably connected to one end of the support member 7, which facilitates locking the first rotating rod 8 and the pull rod 12 at the top of the main frame 1, thereby locking the bumper 24 and improving the safety of the movement of this device. One end of the handle rod 15 is fixedly connected with a magnet for fixing to the locking block 13 to prevent the handle rod 15 from falling off automatically.

[0018] Working principle: The first slot 2 allows the user to move the device using a forklift. The device employs modular installation; by installing placement components of different sizes, it can accommodate bumpers 24 of different sizes, thereby improving adaptability and reducing operating costs. Depending on the size of the bumper 24, the user can remove the placement components using bolts to replace the placement plate 17 of different sizes. In use, the user first removes the anti-jump component, making it easier to place the bumper 24 inside the main frame 1. By pulling the handle 15, the bumper is no longer inside the locking block 13 and the second slot 14. At this point, the user lifts the pull rod 12 upwards, causing the pull rod 12 to rotate the test plate 11 and the first rotating rod 8 by ninety degrees. Then, the user moves the device towards the side of the locking plate 6. Push the pull rod 12 so that one end of the first rotating rod 8 is no longer inside the support member 7. At this time, the minimum dimension of the locking rod 10 is aligned with the opening of the rotating groove 9. The user can lift the pull rod 12 to remove the test plate 11 and the first rotating rod 8. Then, the bumper 24 is placed layer by layer from bottom to top. The two ends of the bumper 24 are placed on the top of the bottom layer of the placement plate 17. At the same time, the positioning block 18 can accurately position the bumper 24. At this time, the two sets of placement plates 17 on both sides of the main frame 1 can support the bumper 24 inside the main frame 1. When placing the bumper 24, under the action of gravity of the second slot 14, the placement plate 17 moves in a circle around the second rotating rod 16, so that one end of the placement plate 17 is no longer in contact with the support rod 19, until the bumper 24 is placed. One end of the placement plate 17 is attached to the support plate 23, which supports the placement plate 17. At this time, the placement plate 17 is in a horizontal state. The end of the placement plate 17 with the positioning block 18 rotates downward, and the end of the placement plate 17 with the counterweight rod 20 and counterweight ring 21 rotates upward. At this time, one end of the placement plate 17 drives the counterweight rod 20 and the linkage plate 22 to move upward. The inner wall of the bottom end of the top groove of the linkage plate 22 pushes another set of counterweight rods 20 to move upward, so that the placement plate 17 performs a circular motion. After the first set of bumpers 24 is placed, the second set of placement plates 17 is in a nearly horizontal state. Then the user gradually places the other set of bumpers 24, and so on, placing the bumpers 24 layer by layer. Finally, the anti-jump component is installed. First, the first rotation... One end of rod 8 is inserted into the support member 7 and supported by the support member 7. After the user stands up the first rotating rod 8, the measuring plate 11, and the pull rod 12, the locking rod 10 enters the rotating groove 9. Then, the user pushes the pull rod 12 and the first rotating rod 8 to one side of the support member 7, so that one end of the first rotating rod 8 is inserted into the support member 7. Then, the user rotates the pull rod 12 and the measuring plate 11 90 degrees to the side where they are close to each other. At this time, the two sets of pull rods 12 and measuring plates 11 are located at the top of the reinforcing plate 5. The user then inserts one end of the handle rod 15 through the second slot 14 into the lock block 13, thus completing the locking. The bumper 24 is locked by the measuring plate 11 and the pull rod 12, preventing the bumper 24 from loosening or falling off during the movement of this device. After the device is moved to the required position by a forklift,Pull out the handle 15, rotate the measuring plate 11 and pull rod 12 ninety degrees, and then remove them. At this point, the robotic arm can move the bumper 24 from top to bottom. After the top layer of bumpers 24 is removed, one end of the placement plate 17 moves downwards under the action of the counterweight ring 21. The placement plate 17 drives one side of the positioning block 18 to move upwards, thus preventing the placement plate 17 from obstructing the removal of the next set of bumpers 24. This process is repeated until all bumpers 24 are removed. This device not only facilitates precise positioning of the bumpers 24 for the user and makes it easier for the robotic arm to pick them up, but also greatly shortens working time and improves work efficiency. Furthermore, its modular installation makes it suitable for different robotic arms, improving the adaptability of the device and reducing user costs.

[0019] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A modular packaging line transfer placement device, characterized by, The application relates to a bumper storage device, which comprises a main frame (1) and a bumper (24), the bottom end of the main frame (1) is fixedly connected with first insertion grooves (2) in a symmetrical mode, the inner wall of the bottom end of the main frame (1) is fixedly connected with mounting plates (3) in a symmetrical mode, the two ends of the main frame (1) are uniformly provided with placing assemblies used for positioning and placing the bumper (24), and the top end of the main frame (1) is symmetrically provided with anti-jumping assemblies used for locking the bumper (24).

2. The modular packaging line staging device of claim 1, wherein: The placing assembly comprises a placing rack (4), the top end of the mounting plate (3) is connected with the placing rack (4) through bolts, one side of the placing rack (4) is fixedly connected with supporting plates (23) in a uniform mode, the inside of the placing rack (4) is uniformly connected with second rotating rods (16) through bearings, the inside of the placing rack (4) is uniformly provided with placing plates (17), the middle parts of the placing plates (17) are fixedly connected with the second rotating rods (16) respectively, one end of each placing plate (17) is fixedly connected with a positioning block (18) used for positioning, the other end of each placing plate (17) is fixedly connected with a counterweight rod (20), the bottom of the placing rack (4) is fixedly connected with a supporting rod (19), one end of each placing plate (17) is in abutment with the supporting rod (19), the surface of the counterweight rod (20) is uniformly sleeved with a counterweight ring (21), and a linkage assembly is arranged between the counterweight rods (20).

3. The modular packaging line carousel according to claim 2, characterized in that: The top end of the main frame (1) is symmetrically provided with a reinforcing plate (5), and the top end of the placing rack (4) is connected with the reinforcing plate (5) through bolts.

4. The modular packaging line staging device of claim 2, wherein: The placing rack (4) and the supporting plate (23) are in an integral forming structure.

5. The modular packaging line staging device of claim 2, wherein: The linkage assembly comprises linkage plates (22), one side of the placing rack (4) is provided with four groups of linkage plates (22), the bottom end of each linkage plate (22) is connected with one end of the counterweight rod (20) through a bearing, five groups of counterweight rods (20) and four groups of linkage plates (22) are arranged on each placing rack (4), the top end of each linkage plate (22) is provided with a sliding groove, and the sliding groove is in sliding connection with the counterweight rod (20).

6. The modular packaging line staging device of claim 2, wherein: The two ends of the bumper (24) are located at the top end of the placing plate (17) respectively, and the two ends of the bumper (24) are in sliding connection with the positioning blocks (18).

7. The modular packaging line staging device of claim 1, wherein: The anti-jumping assembly comprises a lock plate (6), one side of the top end of the main frame (1) is fixedly connected with the lock plate (6) in a symmetrical manner, the other side of the top end of the main frame (1) is fixedly connected with a support (7) in a symmetrical manner, the top end of the main frame (1) is symmetrically provided with a first rotating rod (8), one end of the first rotating rod (8) is located in the interior of the support (7), the other end of the first rotating rod (8) is fixedly connected with an oval-shaped lock rod (10), one side of the lock plate (6) is provided with a rotating groove (9), both ends of the first rotating rod (8) are fixedly connected with a measuring plate (11), one end of the first rotating rod (8) is provided with a pull rod (12), both ends of the pull rod (12) are fixedly connected with one end of the measuring plate (11) respectively, one end of a group of the measuring plates (11) is fixedly connected with a lock block (13), one end of the lock plate (6) is provided with a second insertion groove (14), one end of the lock plate (6) is provided with a handle rod (15) penetrating through the second insertion groove (14), one end of the handle rod (15) is slidably connected with the lock block (13).

8. The modular packaging line transfer placement device of claim 7, wherein: The rotating groove (9) is a circular groove with an open top end, the lock rod (10) is rotatably connected with the rotating groove (9), the minimum diameter of the lock rod (10) is matched with the size of the opening at the top end of the rotating groove (9), and one end of the first rotating rod (8) is slidably connected with one end of the support (7).

9. The modular packaging line transfer placement device of claim 7, wherein: One end of the handle rod (15) is fixedly connected with a magnet for fixing the lock block (13).

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