A folding adjustable quick camming mechanism and method of packing a box

Abstract

The application discloses a folding adjustable quick cam pressing mechanism and a packaging box pressing method, and relates to the technical field of ammunition packaging box pressing, and aims to solve the technical problem of poor reliability and operability of the existing pressing method. The folding adjustable quick cam pressing mechanism comprises a cam handle, the head of the cam handle is provided with a cam, the head of the cam handle is rotationally connected with a fixing shaft, the fixing shaft is rotationally connected with a rotating shaft, the tail of the cam handle is limited by an anti-loosening device, the other end of the rotating shaft is connected with a stop block, and the minimum diameter of the stop block is greater than the diameter of the other end of the rotating shaft. The application also discloses a packaging box pressing method, which can press the end door and the box body as much as possible, compress and deform the sealing rubber strip therebetween, and finally achieve the sealing effect.

Description

Technical Field

[0001] This invention belongs to the field of ammunition packaging box clamping technology, and relates to heavy equipment and military product packaging. Specifically, it is a foldable adjustable quick cam clamping mechanism and packaging box clamping method. Background Technology

[0002] Nowadays, ammunition packaging boxes require increasingly higher reliability and stability in terms of airtightness. Traditional packaging boxes use buckles or bolts for fastening. Buckles are simple and quick to operate, but their reliability is poor, and they are easily opened automatically during drops or transportation. In addition, the clamping force is limited, affecting product performance. Bolt fastening provides greater clamping force, but the operation is cumbersome and requires tools, thus not meeting the requirements for rapid operation. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the purpose of this invention is to provide a foldable adjustable quick cam pressing mechanism and a packaging box pressing method, which solves the technical problems of poor reliability and operability of the existing pressing method, and realizes the compression between the end door and the box body as much as possible, compressing and deforming the sealing strip in the middle, and finally achieving the sealing effect.

[0004] The foldable adjustable quick cam clamping mechanism of the present invention is implemented using the following technical solution:

[0005] A foldable adjustable quick cam clamping mechanism includes a cam handle, the head of which is configured as a cam, a fixed shaft rotatably connected to the head of the cam handle, and a rotating shaft rotatably connected to the fixed shaft. It also includes an anti-loosening device that limits the tail of the cam handle, and a stop block connected to the other end of the rotating shaft. The minimum diameter of the stop block is larger than the diameter of the other end of the rotating shaft.

[0006] In application, the fixed shaft passes through the designated through hole on the housing and is rotatably connected to the rotating shaft. Then, the cam handle is rotatably connected to the fixed shaft, and the rotating shaft is connected to the stop block.

[0007] In a further preferred embodiment, in order to facilitate adjustment of the compressive force of the packaging box, the stop block is provided with an internal thread, and the other end of the rotating shaft is provided with an external thread, and the stop block is screwed onto the threaded end of the rotating shaft.

[0008] A further preferred embodiment is that the cam handle is rotatably connected to the fixed shaft, further comprising a pin B, wherein the cam handle head is rotatably connected to the fixed shaft via pin B. Specifically, the cam handle head includes two identical parallel cams, each with a pin hole at its center of rotation, and one end of the fixed shaft has a pin hole. The fixed shaft is inserted between the two cams and rotatably connected by pin B.

[0009] A further preferred embodiment is that the fixed shaft and the rotating shaft are rotatably connected by a pin A, wherein the fixed shaft is rotatably connected to the rotating shaft via pin A. Specifically, the other end of the fixed shaft is provided with an opening perpendicular to the axis, the opening having symmetrical pin holes, and one end of the rotating shaft is provided with an extension section having pin holes. The extension section is inserted into the opening and rotatably connected by pin A.

[0010] More preferably, the anti-loosening device includes a baffle and a spring pin, the spring pin being fixed to one side of the baffle.

[0011] The present invention also provides a method for compressing packaging boxes, comprising the following steps:

[0012] This includes packaging boxes with designated through holes in the box body and slots in the end doors, with anti-loosening devices installed on the box body.

[0013] Steps to tighten the packaging box:

[0014] In the first step, the fixed shaft passes through the designated through hole and is rotatably connected to the rotating shaft, and the fixed shaft passes through the designated through hole and is rotatably connected to the cam handle.

[0015] In the second step, the rotating shaft is rotated to a position coaxial with the fixed shaft, and the stop block is located outside the end door of the packaging box.

[0016] In the third step, the tail of the cam handle is bent toward the housing, and the cam handle presses the rubber strip between the housing and the end door during rotation.

[0017] The fourth step is to assemble an anti-loosening device into the tail of the cam handle;

[0018] Steps to unpack the box:

[0019] S1. Release the anti-loosening device from limiting the tail of the cam handle.

[0020] S2. Turn the tail of the cam handle away from the housing. As the cam handle rotates, the pressure of the rubber strip between the housing and the end door decreases until it disappears.

[0021] S3, the rotating shaft flips to a position that is not on the same axis as the fixed shaft and the stop block flips away from the slot.

[0022] First, rotate the rotating shaft to be coaxial with the fixed shaft, positioning the stop block outside the end door. Then, pry the tail of the cam handle towards the housing. The cam pulls the fixed shaft and the rotating shaft to move towards the housing. The housing moves along the cam profile, and the housing moves in the opposite direction to the fixed shaft. The rotating shaft drives the stop block to move towards the housing as well. The stop block will also press the end door towards the housing. Finally, install the tail of the cam handle into the anti-loosening device.

[0023] The adjustable method of this invention can fully compress rubber strips of different cross-sections and hardness. At the same time, the folding compression method allows the end door to be opened quickly by releasing the cam handle. The compression mechanism has an anti-loosening function, which can be used in a variety of scenarios. Ultimately, it achieves functions such as quick compression, quick opening, adjustable compression strength, and anti-loosening during use. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a top view of the structure of the present invention.

[0027] Figure 2 This diagram illustrates the anti-loosening device of the present invention.

[0028] Figure 3 This is a schematic elevation view showing the compressed state of the structure of the present invention.

[0029] Figure 4 This is a side view of the structure of the present invention in its open state.

[0030] In the diagram: 1-End door, 2-Box body, 3-Cam handle, 4-Anti-loosening device, 5-Rectangular nut, 6-Rotating shaft, 7-Pin A, 8-Fixed shaft, 9-Pin B, 10-Spring pin, 11-Rubber strip. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of the present invention, the solutions of the present invention will be further described below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0032] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the invention, but the invention may also be practiced in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the invention, and not all embodiments.

[0034] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0035] A foldable adjustable quick cam clamping mechanism includes a cam handle 3, the head of the cam handle 3 is configured as a cam, the cam rotation center is rotatably connected to a fixed shaft 8, the fixed shaft 8 is rotatably connected to a rotating shaft 6, the tail of the cam handle 3 is equipped with an anti-loosening device 4 within the rotation radius around the fixed shaft 8, and the other end of the rotating shaft 6 is connected to a stop block, the minimum diameter of the stop block being larger than the diameter of the other end of the rotating shaft 6.

[0036] In this embodiment, the cam handle 3 is an operating handle, the stop block can be a rectangular nut 5, and a rectangular groove is provided at the corresponding position of the end door 1. The rectangular nut 5 can be embedded in the rectangular groove. After the cam pressing mechanism presses, the rectangular nut 5 will not rotate because it is subjected to a large squeezing force. However, the rectangular groove can further prevent the rectangular nut 5 from rotating during the pressing process of the cam pressing mechanism or from rotating due to the vibration of the packaging box.

[0037] like Figure 1 As shown, the packaging box body 2 has a designated through hole. The through hole on the contact side between the box body 2 and the end door 1 is designed as a slot, with a slot length of approximately one-third of the box body thickness. The slot is designed to provide space for the rotating shaft to flip. The fixed shaft 8 can move axially along the designated through hole within the packaging box, but it cannot flip out of the designated through hole. That is, the central axis of the fixed shaft 8 and the central axis of the through hole are always parallel.

[0038] The rectangular nut 5 has an internal thread, and the other end of the rotating shaft 6 has an external thread. The rectangular nut 5 is screwed onto the threaded end of the rotating shaft 6. The head of the cam handle 3 is rotatably connected to the fixed shaft 8 via pin B9. The fixed shaft 8 is rotatably connected to the rotating shaft 6 via pin A7. Specifically, the head of the cam handle 3 includes two identical parallel cams. The rotation center of the cams has a pin hole, and one end of the fixed shaft 8 has a pin hole. One end of the fixed shaft 8 is inserted between the two cams and rotatably connected by pin B9. The other end of the fixed shaft 8 has an opening perpendicular to the axis, with symmetrical pin holes in the opening. One end of the rotating shaft 6 has an extension section with pin holes. The extension section is inserted into the opening and rotatably connected by pin A7.

[0039] The anti-loosening device 4 includes a baffle plate to prevent the cam handle 3 from springing upward and a spring pin 10. The spring pin 10 is fixed to one side of the baffle plate, and the anti-loosening device is installed on the housing.

[0040] like Figure 1 As shown, the end door 1 also has a corresponding slot at the slotted position of the housing 2. The rotating shaft 6 can move along the axial direction of the designated through hole. At the same time, the rotating shaft 6 also passes through the long slot of the end door 1, and a rectangular nut 5 is threadedly connected to one end of the end door 1. The rotating shaft 6 can flip out of the long slot together with the rectangular nut 5. That is, the central axis of the rotating shaft 6 and the central axis of the designated through hole are at a certain angle.

[0041] In application, the fixed shaft 8 and the rotating shaft 6 are rotatably connected and pass through the through hole on the housing 2. Then, the cam handle 3 is rotatably connected to the fixed shaft 8, and the rotating shaft 6 is connected to the rectangular nut 5.

[0042] The steps for tightening the packaging box are as follows: After installation, first rotate the rotating shaft 6 to a position coaxial with the fixed shaft 8, so that the rectangular nut 5 is in the rectangular groove on the outside of the end door 1. Then, turn the tail of the cam handle 3 towards the box body 2. The tail of the cam handle 3 drives the cam to rotate, and the cam pulls the fixed shaft 8 and the rotating shaft 6 to move towards the box body 2. The box body 2 moves with the change of the cam profile, and the box body 2 moves in the opposite direction to the fixed shaft 8. The rotating shaft 6 drives the rectangular nut 5 to move towards the box body 2 as well. The rectangular nut 5 will also squeeze the end door 1 to move towards the box body 2, thus achieving the tightening of the rubber strip 11. Finally, assemble the tail of the cam handle 3 into the anti-loosening device 4.

[0043] The steps to loosen the end door 1 of the packaging box are as follows: Open the spring pin 10 of the anti-loosening device 4 at the tail of the cam handle 3 to loosen the anti-loosening device 4. Turn the tail of the cam handle 3 away from the box body 2. The tail of the cam handle 3 drives the cam to rotate. The cam pushes the fixed shaft 8 and the rotating shaft 6 to move towards the end door 1. The box body 2 moves with the change of the cam profile line, and the box body 2 moves in the opposite direction to the fixed shaft 8. The rectangular nut 5 releases the pressure on the end door 1. Rotate the rotating shaft 6 to the side of the end door 1. The central axis of the rotating shaft 6 and the central axis of the fixed shaft 8 rotate to different positions. Finally, the end door 1 of the packaging box can be opened.

[0044] If the packing box is pressed too tightly or too loosely, the clamping force can be adjusted by turning the rectangular nut 5. After adjusting the clamping force appropriately, repeat the process of pressing the packing box.

[0045] The advantages of this invention compared to existing technologies are as follows: First, the cam clamping operation is simple and quick, and has labor-saving performance; Second, the foldable and adjustable structure design can quickly open or close the end door 1, and can also clamp with different strengths according to different rubber strips 11, making it highly adaptable; Third, the clamping mechanism has an anti-loosening design, which can be applied to a variety of application scenarios.

[0046] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and they should all be covered within the protection scope of the claims.

Claims

1. A folding adjustable quick cam tensioning mechanism characterized by: The cam handle (3) head is provided as a cam, the rotation center of the cam is rotationally connected with a fixed shaft (8), the fixed shaft (8) is rotationally connected with a rotating shaft (6), further comprising a anti-loosening device (4) limiting the tail of the cam handle (3), the other end of the rotating shaft (6) is connected with a stop block, the minimum diameter of the stop block is greater than the diameter of the other end of the rotating shaft (6); The stop block is provided with internal threads, the other end of the rotating shaft (6) is provided with external threads, the stop block is screwed on the threaded end of the rotating shaft (6), the stop block is a rectangular nut (5), the rectangular nut (5) can be embedded in a rectangular groove; The fixed shaft (8) is rotationally connected with the rotating shaft (6) through a pin shaft A (7); The end of the other end of the fixed shaft (8) is provided with an opening perpendicular to the axis, the opening is provided with symmetrical pin holes, one end of the rotating shaft (6) is provided with an extension, the extension is provided with a pin hole, the extension is inserted into the opening and rotationally connected with the pin shaft A (7); The fixed shaft (8) can move axially but cannot be turned over, the rotating shaft (6) can move axially and can be turned over with the rectangular nut (5).

2. A folding adjustable quick cam tensioning mechanism according to claim 1, wherein: The head of the cam handle (3) is rotationally connected with the fixed shaft (8) through a pin shaft B (9).

3. A folding adjustable quick cam tensioning mechanism according to claim 2, wherein: The head of the cam handle (3) includes two same cams arranged in parallel, the rotation center of the cam is provided with a pin hole, the end of one end of the fixed shaft (8) is provided with a pin hole, the fixed shaft (8) is inserted into the middle of the two cams and rotationally connected with the pin shaft B (9).

4. The folding adjustable quick cam tensioning mechanism of any one of claims 1-3, wherein: The anti-loosening device (4) includes a stop piece and a spring pin (10), the spring pin (10) is fixed on one side of the stop piece.

5. A method of compacting a carton, characterized by: The method adopts the folding adjustable quick cam pressing mechanism of any one of claims 1-4 to realize; The packaging box includes a box body (2) provided with a specified through hole and an end door (1) provided with a slot, and the anti-loosening device (4) is installed on the box body (2); The pressing packaging box step: The first step, the fixed shaft (8) is rotationally connected with the rotating shaft (6) after passing through the specified through hole, and the fixed shaft (8) is rotationally connected with the cam handle (3) after passing through the specified through hole; The second step, the rotating shaft (6) is rotated to the coaxial position of the fixed shaft (8), and the stop block is located outside the end door (1) of the packaging box; The third step, the tail of the cam handle (3) is bent towards the box body (2), and the cam handle (3) is pressed against the rubber strip (11) between the box body (2) and the end door (1) during rotation; The fourth step, the tail of the cam handle (3) is assembled into the anti-loosening device (4); The loosening packaging box step: S1, the anti-loosening device (4) is removed from the tail of the cam handle (3); S2, the tail of the cam handle (3) is bent away from the box body (2), the pressing force of the rubber strip (11) between the box body (2) and the end door (1) decreases during the rotation of the cam handle (3), until it disappears; S3, the rotating shaft (6) is turned over to a position different from the fixed shaft (8) and the stop block is turned over to leave the slot.

6. A method of pressing a packaging box according to claim 5, characterized in that: The outer side of the end door (1) is provided with a rectangular groove for embedding the stop block.

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