Container corner fitting tensioner

Abstract

The utility model discloses a container corner fitting tensioner, which relates to the technical field and comprises a device main body, a first screw rod, a first threaded block, a connecting block, a second screw rod and a holding block, the center of the second screw rod is connected with a second threaded block, the center of the second threaded block is further connected with a movable block, and the center of the movable block is further connected with an inserting rod. A center block is further connected above the device body, an auxiliary block is further connected above the center block, limiting rods are connected to the two sides of the center block, a top plate is connected to the centers of the limiting rods, side plates are connected to the lower portion of the top plate, and connecting springs are connected to the centers of the side plates. The device main body is matched with the second screw rod above the device main body, so that the device main body can drive the second threaded block to adjust at any height, thereby ensuring that the insertion rod always coincides with the central aperture of the corner fitting, and adapting to different corner fittings; and a connecting block on the outer side of the second lead screw is driven by a driving motor to automatically move towards the center position, and the fixing efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of tensioning and positioning technology, and in particular to a container corner tensioner. Background Technology

[0002] During container manufacturing, the corner posts of the container require corner fittings to be welded. Different sized corner posts correspond to different sized corner fittings, which are structures with an elliptical through-hole at one end. The height of the elliptical through-hole varies depending on the type of corner fitting. During the welding process between the corner posts and the corner fittings, tensioners of corresponding sizes are needed to secure the corner fittings before welding. However, when loading containers of different sizes, it is necessary to manufacture and replace the corresponding tensioners, resulting in low efficiency in production transitions and increased manufacturing costs.

[0003] An existing patent (publication number: CN219027350U) discloses a universal tensioner for container corner fittings. By modifying the clamping block of the tensioner to be height-adjustable, it can meet the positioning needs of corner fittings of different sizes during production transitions, greatly reducing transition time and manufacturing costs. In implementing this solution, the following problems were found in the existing technology, which have not been adequately resolved:

[0004] It uses multiple threaded holes to change the height to adapt to different corner pieces and complete the auxiliary fixing work. However, the height of the corner piece cannot be guaranteed to always match the height of the threaded hole, which can easily lead to the corner piece being suspended or the threaded hole being too low, affecting the fixing. Secondly, it cannot quickly center and align the corner piece for fixing, resulting in low fixing efficiency. Utility Model Content

[0005] To address the aforementioned problem that the center of the corner fitting cannot always be aligned with the threaded hole, thus hindering quick centering and fixing, this utility model provides a container corner fitting tensioner.

[0006] This utility model provides a container corner fitting tensioner, which adopts the following technical solution:

[0007] A container corner fitting tensioner includes a device body, a first lead screw connected inside the device body, first threaded blocks connected to both sides of the first lead screw, a connecting block connected above the first threaded blocks, a second lead screw connected to the inner side of the connecting block, a gripping block connected above the second lead screw, a second threaded block connected to the center of the second lead screw, a movable block connected to the center of the second threaded block, and an insertion rod connected to the center of the movable block.

[0008] A central block is connected above the main body of the device, and an auxiliary block is connected above the central block. Limiting rods are connected to both sides of the central block, and a top plate is connected to the center of the limiting rods. A side plate is connected below the top plate, and a connecting spring is connected to the center of the side plate.

[0009] The above technical solution facilitates the position change of the second threaded block by driving the second lead screw, thereby adapting to different corner pieces, ensuring that the center of the insertion rod coincides with the center of the corner piece, completing the fixing work, and by setting a center block and an auxiliary block to cooperate, the corner piece can be quickly placed in the center position, improving the tightening efficiency.

[0010] Optionally, in the above-mentioned container corner tensioner, a drive motor is also connected to the left side of the first lead screw, the two sides of the first lead screw have opposite thread directions, and the connection between the first lead screw and the first threaded block is a threaded connection.

[0011] The above technical solution facilitates the movement of the first threaded block in the center by cooperating with the first lead screw and the drive motor.

[0012] Optionally, in the above-mentioned container corner tensioner, an anti-detachment rod is also connected below the first threaded block, the first threaded block and the connecting block are connected by heat fusion, and the connecting block and the main body of the device are connected by sliding connection.

[0013] The above technical solution facilitates the connection block to move stably without shaking by cooperating with the first threaded block and the anti-disengagement rod.

[0014] Optionally, in the above-mentioned container corner tensioner, the connection between the connecting block and the second lead screw is a sliding connection, the second lead screw and the grip block have an integrated rotating structure, and the connection between the second lead screw and the second threaded block is a threaded connection.

[0015] The above technical solution facilitates the use of the gripping block to drive the second lead screw to rotate, thereby changing the position of the second threaded block and ensuring alignment with the center hole diameter of the corner piece.

[0016] Optionally, in the above-mentioned container corner tensioner, the second threaded block and the movable block are connected by heat fusion, the movable block and the insertion rod are installed as an integral unit, and the insertion rod is symmetrically distributed on both sides of the center of the device body.

[0017] The above technical solution facilitates the movement of the movable block and the insertion rod via the second threaded block, making it suitable for use with corner pieces of different sizes.

[0018] Optionally, in the above-mentioned container corner tensioner, the center of the central block coincides with the center of the main body of the device, the connection between the central block and the auxiliary block is a heat fusion connection, and the top of the auxiliary block is lower than the top of the central block.

[0019] The above technical solution facilitates the lifting of corner pieces by using the cooperation of the center block and auxiliary blocks.

[0020] Optionally, in the above-mentioned container corner tensioner, the connection between the top plate and the side plate is a heat fusion connection, the top plate is symmetrically distributed on both sides of the center of the auxiliary block, and the top plate has a funnel-shaped structure.

[0021] The above technical solution facilitates the insertion of corner pieces by squeezing the top plate through the funnel-shaped structure, causing it to move to both sides.

[0022] Optionally, in the above-mentioned container corner tensioner, the top plate forms a sliding connection structure with the center block through a limiting rod, the center block forms a spring return structure with the side plate through a connecting spring, and the connecting spring has internal shock-absorbing damping.

[0023] The above technical solution facilitates the cooperation between the center block and the side plate, allowing the connecting spring to drive the side plate to press the corner piece, thus assisting in centering and limiting fixation.

[0024] In summary, this utility model has at least one of the following beneficial effects:

[0025] The device body works in conjunction with the second lead screw above it, allowing the second threaded block to be adjusted to any height, thus ensuring that the insertion rod always coincides with the center hole of the corner piece, adapting to different corner pieces. Furthermore, the connecting block on the outside of the second lead screw is driven by the drive motor to move automatically toward the center position, ensuring fixing efficiency.

[0026] An auxiliary block is set above the center of the main body of the device to cooperate with the top plate. The auxiliary block prevents the corner piece from going deep into the center block and affecting subsequent welding. The top plate has a funnel-shaped structure. During use, the corner piece squeezes the top plate, causing the top plate to open to both sides. Then, the connecting spring drives the side plate to fit against the bottom of the corner piece, completing the centering and fixing work. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0029] Figure 3 This is a side view of the central block structure of this utility model;

[0030] Figure 4 This is a utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0031] In the diagram: 1. Main body of the device; 2. First lead screw; 3. First threaded block; 4. Connecting block; 5. Grip block; 6. Second lead screw; 7. Second threaded block; 8. Movable block; 9. Insertion rod; 10. Center block; 11. Top plate; 12. Limiting rod; 13. Side plate; 14. Connecting spring; 15. Auxiliary block. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0033] Please refer to the attached diagram in the instruction manual. Figure 1-4 This utility model provides an embodiment of a container corner fitting tensioner, comprising a device body 1, a first lead screw 2 connected inside the device body 1, first threaded blocks 3 connected to both sides of the first lead screw 2, and a connecting block 4 connected above the first threaded blocks 3. The connecting block 4 cooperates with the first threaded blocks 3, causing the connecting block 4 to move in the center and be automatically fixed. A second lead screw 6 is connected to the inner side of the connecting block 4, a gripping block 5 is connected above the second lead screw 6, and a second threaded block 7 is connected to the center of the second lead screw 6. The second lead screw 6 drives the second threaded block 7 to move, automatically changing the position of the movable block 8. The center of the second threaded block 7 is also connected to the movable block 8, and the center of the movable block 8 is also connected to the insertion rod 9. The insertion rod 9 is inserted into the center hole of the corner fitting to complete the fixing work.

[0034] A central block 10 is connected above the main body 1 of the device, and an auxiliary block 15 is connected above the central block 10. Limiting rods 12 are connected to both sides of the central block 10. The limiting rods 12 limit the top plate 11 to prevent it from shaking. The center of the limiting rods 12 is connected to the top plate 11, and the bottom of the top plate 11 is connected to the side plate 13. The side plate 13 and the connecting spring 14 cooperate with each other to fix the corner piece in the center, which facilitates the fixing of the insertion rod 9. The center of the side plate 13 is connected to the connecting spring 14.

[0035] Working principle: When in use, first, the corner piece to be welded is placed above the auxiliary block 15 and inside the center block 10. During the placement process, the bottom of the corner piece first contacts the top plate 11, and then during the pressing process, it squeezes the top plate 11, causing the top plate 11 to move outward. Then, under the limit of the limiting rod 12, the top plate 11 drives the side plate 13 to move to both sides. After the corner piece is placed, the connecting spring 14 drives the side plate 13 to push towards the center, so that the corner piece is centered and aligned.

[0036] As described above, after the corner pieces are aligned, if the center of the insertion rod 9 is not aligned with the center of the corner piece, grasp the gripping block 5 and rotate it, causing the gripping block 5 to drive the second lead screw 6 to rotate. Then, the second lead screw 6 and the second threaded block 7 will have threaded movement, causing the second threaded block 7 to rise and fall, which in turn drives the movable block 8 and the insertion rod 9 to move to adapt to different center hole diameters of the corner pieces. If they are already aligned, turn on the drive motor switch, causing it to drive the first lead screw 2 to start rotating, thereby moving the first threaded block 3 to the center, causing the connecting block 4 to move towards the center, so that the insertion rod 9 is inserted into the center of the corner piece, completing the fixing work.

[0037] It should be noted that a drive motor is also connected to the left side of the first lead screw 2. The threads on both sides of the first lead screw 2 are in opposite directions. The first lead screw 2 is connected to the first threaded block 3 by a threaded connection. The first lead screw 2 works with the drive motor to drive the first threaded block 3 to move in the center.

[0038] It should be noted that an anti-detachment rod is also connected below the first threaded block 3. The connection between the first threaded block 3 and the connecting block 4 is a heat fusion connection, and the connection between the connecting block 4 and the main body 1 of the device is a sliding connection. Through the cooperation of the first threaded block 3 and the anti-detachment rod, the connecting block 4 can move stably without shaking.

[0039] It should be further explained that the connection between the connecting block 4 and the second lead screw 6 is a sliding connection, the second lead screw 6 and the grip block 5 are an integrated rotating structure, and the connection between the second lead screw 6 and the second threaded block 7 is a threaded connection. The grip block 5 drives the second lead screw 6 to rotate, thereby changing the position of the second threaded block 7 to ensure alignment with the center hole diameter of the corner piece.

[0040] It should be noted that the connection between the second threaded block 7 and the movable block 8 is a heat fusion connection. The movable block 8 and the insertion rod 9 are installed as a whole. The insertion rod 9 is symmetrically distributed on both sides of the center of the main body 1 of the device. The movable block 8 and the insertion rod 9 are moved by the second threaded block 7 to adapt to corner pieces of different sizes.

[0041] It should be noted that the center of the central block 10 coincides with the center of the main body 1 of the device. The connection between the central block 10 and the auxiliary block 15 is a hot-melt connection. The top of the auxiliary block 15 is lower than the top of the central block 10. The cooperation between the central block 10 and the auxiliary block 15 facilitates the lifting of the corner piece.

[0042] It should be noted that the top plate 11 and the side plate 13 are connected by heat fusion. The top plate 11 is symmetrically distributed on both sides of the center of the auxiliary block 15. The top plate 11 has a funnel-shaped structure. The funnel-shaped structure of the top plate 11 allows the corner piece to be inserted and squeezed to move towards both sides.

[0043] It should be further explained that the top plate 11 forms a sliding connection structure with the center block 10 through the limiting rod 12, and the center block 10 forms a spring return structure with the side plate 13 through the connecting spring 14. The connecting spring 14 has internal shock-absorbing damping. Through the cooperation between the center block 10 and the side plate 13, the connecting spring 14 can drive the side plate 13 to squeeze the corner piece, which helps to center and limit the fixation.

[0044] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A container corner fitting tensioner, comprising a device body (1), characterized in that: The device body (1) is internally connected to a first lead screw (2), and the first threaded blocks (3) are connected to both sides of the first lead screw (2). A connecting block (4) is also connected above the first threaded block (3). A second lead screw (6) is connected to the inside of the connecting block (4). A gripping block (5) is connected above the second lead screw (6). A second threaded block (7) is connected to the center of the second lead screw (6). A movable block (8) is also connected to the center of the second threaded block (7). An insertion rod (9) is also connected to the center of the movable block (8). A central block (10) is connected above the main body (1) of the device, and an auxiliary block (15) is connected above the central block (10). Limiting rods (12) are connected to both sides of the central block (10). A top plate (11) is connected to the center of the limiting rods (12). A side plate (13) is connected below the top plate (11). A connecting spring (14) is connected to the center of the side plate (13).

2. A container corner tensioner according to claim 1, characterized in that: A drive motor is also connected to the left side of the first lead screw (2). The threads on both sides of the first lead screw (2) are opposite. The connection between the first lead screw (2) and the first threaded block (3) is a threaded connection.

3. A container corner tensioner according to claim 1, characterized in that: An anti-detachment rod is also connected below the first threaded block (3). The connection between the first threaded block (3) and the connecting block (4) is a heat fusion connection, and the connection between the connecting block (4) and the device body (1) is a sliding connection.

4. A container corner tensioner according to claim 1, characterized in that: The connection between the connecting block (4) and the second lead screw (6) is a sliding connection. The second lead screw (6) and the grip block (5) are an integrated rotating structure. The connection between the second lead screw (6) and the second threaded block (7) is a threaded connection.

5. A container corner tensioner according to claim 1, characterized in that: The second threaded block (7) and the movable block (8) are connected by heat fusion. The movable block (8) and the insertion rod (9) are installed as an integral unit. The insertion rod (9) is symmetrically distributed on both sides of the center of the main body (1) of the device.

6. A container corner tensioner according to claim 1, characterized in that: The center of the central block (10) coincides with the center of the device body (1). The connection between the central block (10) and the auxiliary block (15) is a hot-melt connection. The top of the auxiliary block (15) is lower than the top of the central block (10).

7. A container corner tensioner according to claim 1, characterized in that: The top plate (11) and the side plate (13) are connected by hot-melt connection. The top plate (11) is symmetrically distributed on both sides of the center of the auxiliary block (15). The top plate (11) has a funnel-shaped structure.

8. A container corner tensioner according to claim 1, characterized in that: The top plate (11) is connected to the center block (10) by a limiting rod (12), and the center block (10) is connected to the side plate (13) by a connecting spring (14), and the connecting spring (14) is internally connected with shock-absorbing damping.

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