Rod body and container door rod having the same

Abstract

The present invention provides a rod body and a door rod for a container including the rod body, wherein a lock is provided at one end of the rod body, and the rod body comprises a sliding sleeve, which is sleeved on a rod portion of the rod body and can slide between a first position and a second position along the axial direction of the rod portion, when the sliding sleeve is in the first position, the lock is fixed relative to the rod portion, and when the sliding sleeve is in the second position, the lock can be movable relative to the rod portion; wherein the rod body further comprises a first position locking mechanism, and the first position locking mechanism is configured to lock the sliding sleeve in the first position when the sliding sleeve is in the first position, without sliding to the second position.

Description

Technical Field

[0001] The invention relates to a rod body, in particular to a door rod for a container having the rod body. Background Art

[0002] Containers are increasingly used in the field of cargo transportation, and can be transported by vehicles, ships, airplanes and other means of transportation. Traditional containers are used to allow cargo to enter and exit by opening and closing the rear door panel (door). The rear door panel is generally equipped with multiple door rods extending longitudinally. The door rods include locks for locking the door rods on the top and bottom plates of the container, thereby fixing the door panel vertically in place. The door rods of most containers adopt a fixed structure. When the container is loaded and transported, the door rods of the fixed structure can firmly fix the rear door panel (door) of the container to prevent the rear door panel from shaking due to unstable fixation, thereby preventing the cargo in the container from accidentally falling out or shaking and causing damage or loss. However, in the case where the door rod is a fixed structure, when the container is empty, the empty container (empty box) needs to occupy the same volume space as the loaded container (heavy box), so the empty container transportation of traditional containers will greatly waste transportation and storage costs.

[0003] In order to reduce the space occupied by an empty container, a container that can be folded when empty has been developed, wherein when empty, the door panel needs to be removed together with the door rod, and then the rear door panel is stacked on the bottom plate, and the other side panels are folded inward from the middle part, so that the empty container is folded to reduce its occupied space. However, removing the door panel requires manpower and time, resulting in increased costs.

[0004] In order to solve this problem, a solution has been proposed that does not require the door panel to be disassembled together with the door rod, thereby saving labor. For example, Chinese patent ZL200820177991.0 discloses a folding door rod for a container, the top of which includes a door rod folding lock head seat, a door rod folding lock head, a positioning sleeve, and a positioning pin, wherein: the door rod folding lock head seat has a groove above, and the groove has a hole; the door rod folding lock head has a notch above, which is directly opposite to the edge of the container, and has a plug handle below, and the plug handle has a hole, and the plug handle is inserted into the groove above the door rod folding lock head seat; the positioning pin passes through the plug handle and the hole of the groove; the positioning sleeve can slide on the door rod folding lock head, and when the positioning sleeve slides down and wraps the groove, the door rod folding lock head is vertically fixed. In the folding door rod for a container disclosed in Chinese patent ZL200820177991.0, when the container needs to be folded, the worker slides the positioning sleeve upward to expose the positioning pin and its vicinity, so that the door rod folding lock can be folded around the positioning pin relative to the door rod folding lock seat. As a result, the upper end of the rear door panel can be pushed inwardly toward the bottom plate of the container relative to the lower end of the rear door panel and stacked on the bottom plate. Subsequently, the worker can continue to fold the remaining side panels to fold the empty container.

[0005] However, in a container with a folding door rod as described above, since the positioning sleeve can slide up and down along the longitudinal direction of the door rod, when the cargo container is transported in a bumpy transportation environment, the positioning sleeve may accidentally expose the positioning pin and its vicinity due to vibration, resulting in the accidental folding of the door rod folding lock, which in turn causes the door rod lock to fail to fix the door panel in place and causes the rear door panel to shake. In addition, in applications where the door rod is placed horizontally, the positioning sleeve is also easy to slide and cause the accidental folding of the door rod folding lock, which in turn causes the door rod lock to fail to fix the door panel in place and causes the rear door panel to shake. Summary of the invention

[0006] Aspects and advantages of the invention will be set forth in part in the following description, or may be obvious from the description, or may be learned through practice of the invention.

[0007] The present invention aims to solve the above-mentioned problem and proposes a rod body and a door rod for a container comprising the rod body, wherein when it is not necessary to fold the container, for example, the sliding sleeve can be fixed in its position without sliding, and will not cause the lock head of the door rod to accidentally fold, thereby the lock head of the door rod can reliably fix the door panel in place and prevent the rear door panel of the container, for example, from shaking.

[0008] One aspect of the present invention provides a rod body, one end of which is provided with a locking head, the rod body includes a sliding sleeve, the sliding sleeve is sleeved on the rod portion of the rod body and can slide between a first position and a second position along the axial direction of the rod portion, when the sliding sleeve is in the first position, the locking head is fixed relative to the rod portion, and when the sliding sleeve is in the second position, the locking head can be movable relative to the rod portion; wherein the rod body further includes a first position locking mechanism, the first position locking mechanism is configured to lock the sliding sleeve in the first position when the sliding sleeve is in the first position, and not slide to the second position.

[0009] According to the rod body and container door rod as described above, the rod body further includes a first position locking mechanism, which is configured to lock the sliding sleeve in the first position when the sliding sleeve is in the first position, and not slide to the second position, that is, the sliding sleeve can be locked in the first position by the first position locking mechanism, so even in a relatively bumpy transportation environment, the sliding sleeve will not vibrate along the rod portion of the rod body, and thus the sliding sleeve can be reliably prevented from sliding to the second position and accidentally folding the lock head relative to the rod portion. Therefore, the door panel can be reliably fixed in place by the lock head to prevent the door panel from shaking.

[0010] Preferably, according to the rod body as described above, the sleeve can slide from the second position to the first position by rotating the rod to a specific angle relative to the sleeve and the sleeve is locked in the first position by rotating the rod away from the specific angle after the sleeve slides to the first position.

[0011] With the above-described construction, the sliding sleeve can be reliably locked in the first position.

[0012] Preferably, according to the rod body as described above, the rod portion is rotated 180° relative to the sliding sleeve to a specific angular position.

[0013] With the above structure, the rotation of the rod relative to the sleeve can be linked to the rotation (eg 180° rotation) of the handle of the door lever of the container, thereby improving the operability of the rotation of the rod relative to the sleeve.

[0014] Preferably, according to the rod body as described above, the first position locking mechanism includes: a protrusion arranged on the locking head; a first groove arranged on the inner circumferential surface of the sliding sleeve; and a cutout formed on the end surface of the sliding sleeve and connected to the first groove; by rotating the rod portion to a predetermined angular position relative to the sliding sleeve, the protrusion is aligned with the cutout, so that the sliding sleeve can slide from the second position to the first position, and by rotating the rod portion relative to the sliding sleeve to leave the specific angular position after the sliding sleeve slides to the first position, the protrusion enters the first groove.

[0015] In the structure described above, the first position locking mechanism can be composed of a protrusion on the lock head, a first groove and a cutout on the sliding sleeve. The sliding of the sliding sleeve between the first position and the second position and the locking of the sliding sleeve at the first position can be achieved through this simple structure.

[0016] Preferably, according to the rod body as described above, the lock head includes an insert handle, a first pin hole is formed on the insert handle, the rod portion includes a first rod portion and a second rod portion, one end of the first rod portion is provided with a second groove, a second pin hole is formed on the side of the second groove, the second rod portion includes a cylindrical portion, the other end of the first rod portion is inserted into and fixed in the cylindrical portion through a sliding sleeve; the insert handle is inserted into the second groove; the positioning pin passes through the first pin hole and the second pin hole on the insert handle, so that when the sliding sleeve is in the second position, the lock head can be folded relative to the rod portion.

[0017] With the above structure, when the sliding sleeve is in the second position, the locking head can be folded relative to the rod portion with the positioning pin as the axis.

[0018] According to another aspect of the present invention, a door rod for a container is provided, comprising the rod body as described above.

[0019] In applications such as containers, using the rod body constructed as described above, the sleeve can be slid to the second position when folding is required, so that the lock head is folded relative to the rod portion to facilitate the pushing down and further folding of the rear door panel (door) of the container.

[0020] Preferably, according to the door rod for a container as described above, the door rod is installed on the door, and the door includes a sliding sleeve seat fixed thereon, and the sliding sleeve can slide on the sliding sleeve seat.

[0021] With the above configuration, the sliding sleeve seat can be used to guide the sliding of the sliding sleeve between the first position and the second position.

[0022] Preferably, according to the container door rod as described above, a sliding groove is provided on one of the sliding sleeve and the sliding sleeve seat, and a guiding protrusion cooperating with the sliding groove is provided on the other of the sliding sleeve and the sliding sleeve seat.

[0023] With the above structure, the sliding groove on one of the sliding sleeve and the sliding sleeve seat and the guide protrusion on the other of the sliding sleeve and the sliding sleeve seat can be used to guide the sliding of the sliding sleeve between the first position and the second position, and lateral shaking or rotation of the sliding sleeve can be prevented.

[0024] Preferably, according to the container door rod as described above, a stopper is provided on the rod portion or the sliding sleeve seat, and the stopper prevents the sliding sleeve from sliding when the sliding sleeve slides to the second position.

[0025] With the above configuration, when the sliding sleeve has slid to the second position, further sliding of the sliding sleeve can be prevented by the stopper, so that the sliding sleeve can be reliably stopped at the second position.

[0026] Preferably, according to the container door lever as described above, one of the sliding sleeve and the sliding sleeve seat is provided with a protruding pin, and the other of the sliding sleeve and the sliding sleeve seat is provided with a long hole in which the protruding pin slides.

[0027] Using the above-mentioned structure, the two longitudinal sides of the long hole can be used to limit the sliding of the sleeve between the first position and the second position, and when the sleeve slides to the second position, the protruding pin can abut against one longitudinal side of the long hole to prevent the sleeve from continuing to slide, so the above-mentioned stop portion can be omitted.

[0028] These and other features, aspects and advantages of the present invention will become better understood with reference to the following description and appended claims.The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] A complete and enabling disclosure of the invention, including the best mode thereof for one of ordinary skill in the art, is set forth in the specification, with reference to the accompanying drawings, in which:

[0030] Figure 1 is a schematic diagram of a container including a pole body according to a preferred embodiment of the present invention;

[0031] Figure 2 is a perspective view of a door lever including a lever body according to a preferred embodiment of the present invention;

[0032] Figure 3 is a partially enlarged stereoscopic view of one end of a rod body according to a preferred embodiment of the present invention, wherein the sliding sleeve is in a first position;

[0033] Figure 4 is a partially enlarged exploded perspective view of one end of a rod body according to a preferred embodiment of the present invention;

[0034] Figure 5 is a partial enlarged longitudinal cross-sectional view of a rod body according to a preferred embodiment of the present invention;

[0035] Figure 6 is a partially enlarged stereoscopic view of one end of a rod body according to a preferred embodiment of the present invention, wherein the sliding sleeve is in a second position; and

[0036] Figure 7 1 is a partially enlarged perspective view of one end of a rod body according to a preferred embodiment of the present invention, wherein the lock head is folded relative to the rod portion. DETAILED DESCRIPTION

[0037] Reference will now be made in detail to embodiments of the present invention, one or more examples of which are shown in the accompanying drawings. The specific embodiments use numbers and letters to represent features in the drawings. The same or similar reference numerals are used in the drawings and description to refer to the same or similar parts of the present invention.

[0038] The word “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any implementation described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other implementations.

[0039] As used herein, the terms “first,” “second,” and “third” may be used interchangeably to distinguish one component from another, and are not intended to indicate the position or importance of each component.

[0040] Unless otherwise indicated herein, the terms "connected," "fixed," "attached," and the like may refer to both being directly connected, fixed, or attached as well as being indirectly connected, fixed, or attached via one or more intermediate components or features.

[0041] The singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise.

[0042] As used throughout the specification and claims, approximating language is used to modify any quantitative representation that may be permissibly varied without resulting in a change in the basic function to which it is related. Thus, a value modified by one or more terms, such as "about," "approximately," and "substantially," is not limited to the precise value specified. In at least some cases, approximating language may correspond to the precision of an instrument used to measure a value, or the precision of a method or machine used to configure or manufacture a component and / or system. For example, approximating language may mean within 10 percent.

[0043] Throughout the specification and claims, range limitations are combinable and interchangeable, and unless context or language dictates otherwise, these ranges are identified and include all sub-ranges contained therein. For example, all ranges disclosed herein include the endpoints, and the endpoints are independently combinable with each other.

[0044] Figure 1 A schematic diagram of a container including a rod body 1 according to a preferred embodiment of the present invention is shown, wherein the rear door panel (door) of the container includes four door rods (not shown) having a rod body. Note that there is no limit to the number of door rods, and any number of door rods may be provided. Further, in this embodiment, the door rod having the rod body according to the present invention is applied to a container, however, the present invention is not limited thereto, and may be applied to other box structures other than a container.

[0045] Figure 2 is a perspective view of each door rod including a rod body 1 according to a preferred embodiment of the present invention. Figure 3 It is a partially enlarged stereoscopic view of one end of the rod body 1 according to a preferred embodiment of the present invention, wherein the sliding sleeve is in the first position. Figure 4 It is a partially enlarged exploded stereogram of one end of the rod body 1 according to a preferred embodiment of the present invention. Figure 5 FIG. 2 is a partial enlarged longitudinal cross-sectional view of a rod body according to a preferred embodiment of the present invention. Figure 1 As shown, the door rod is a vertically placed rod, which defines an axial direction, that is, an up-and-down direction. However, the present invention is not limited thereto, and the door rod can be a horizontally placed rod. Further, the door rod includes a rod body 1 and a handle 2 fixedly connected to the rod body 1, and the rod body 1 can be rotated by rotating the handle 2 relative to the rear door panel (door).

[0046] like Figure 2-4As shown, a lock head 3 is provided at one end of the rod body 1. In the vertical application shown in the figure, the lock head 3 is arranged at the upper end of the rod body 1. The lock head 3 includes a recess 3a, which is opposite to the edge of the top plate of the container and can be fixed by clamping a lock seat (not shown) arranged on the edge of the top plate. The lock head 3 also includes a handle 31, and a first pin hole 32 is formed on the handle 31. The lock head 3 further includes a protrusion 33, which is formed to protrude on the outer periphery of the lock head 3. In the present embodiment, the protrusion 33 is formed as a circular protruding pin. However, the present invention is not limited to this, and the protrusion 33 can be formed in any shape, such as a rib shape.

[0047] like Figure 2-5 As shown, the rod body 1 includes a rod portion and a sleeve 3 (the sleeve 3 will be described in detail below). In this embodiment, the rod portion includes a first rod portion 5 and a second rod portion 6. One end of the first rod portion 5 (the upper end in the present invention) is provided with a second groove 51, and a second pin hole 52 is formed on the side of the second groove 51. The second rod portion 6 includes a cylindrical portion 61, and the other end of the first rod portion 5 (the lower end in the present invention) is inserted and fixed in the cylindrical portion 61 through the sleeve 4, specifically, through the through hole (not shown) inside the sleeve 4. More specifically, the other end of the first rod portion 5 is formed in a rod shape, and the diameter of the rod-shaped part is approximately equal to the inner diameter of the cylindrical portion 61, so that the two can form a tight fit without relative movement. In this embodiment, the first rod portion 5 and the second rod portion 6 are formed separately. However, the present invention is not limited to this, and the first rod portion 5 and the second rod portion 6 can be formed integrally, as long as the formed rod portion can be inserted through the through hole inside the sleeve 4 and can rotate relative to the sleeve 4.

[0048] The inserting handle 31 of the lock head 3 is inserted into the second groove 51 of the first rod portion 5 . For example, the outer shape of the inserting handle 31 complements the shape of the second groove 51 to form a rod shape.

[0049] The locating pin 7 is inserted into the first pin hole 32 on the plug handle 31 and the second pin hole 52 at the second groove 51, thereby connecting the lock head 3 and the rod portion (the first rod portion 5 and the second rod portion 6) of the rod body 1 together. Through the locating pin 7, the lock head 3 can be folded relative to the rod portion of the rod body 1 with the locating pin 7 as the axis. In this embodiment, the second pin hole 52 is formed on both sides of the second groove 51. However, the present invention is not limited to this, and only one pin hole 52 can be formed on one side of the second groove, as long as the lock head 3 and the rod portion (the first rod portion 5 and the second rod portion 6) can be connected together by the insertion of the locating pin 7. Further. The present invention is not limited to the structure of connecting the lock head 3 and the rod portion using a locating pin, but can be any other structure that can connect the lock head and the rod portion and allow the lock head to be folded relative to the rod portion under certain operations.

[0050] Furthermore, the sliding sleeve 4 is sleeved on the rod portion (the first rod portion 5 and the second rod portion 6) of the rod body 1 and can be moved along the axial direction of the rod portion at a first position (such as Figure 3 as shown, which will be described in detail below) and a second position (as Figure 6 As shown in the figure, which will be described in detail below, when the sleeve 4 is in the first position, the lock head 3 is fixed relative to the rod portion of the rod body 1, and when the sleeve 4 is in the second position, the lock head 3 can be folded relative to the rod portion of the rod body 1. A first groove 41 is formed on the inner circumferential surface of the sleeve 4. In the present embodiment, the first groove 41 is annular formed along the inner circumferential surface of the sleeve 4, and is a predetermined distance away from an end surface of the sleeve 4 (in the present embodiment, the upper end surface of the sleeve 4). A cutout 42 is formed on the end surface of the sleeve 4 and is connected to the first groove 41. Specifically, the cutout 42 is formed by cutting off a portion of the sleeve radially outward from the inner circumferential surface of the sleeve 4 between the first groove 41 and the upper end surface of the sleeve 4, wherein the bottom surface of the cutout 42 is on the same plane as the bottom surface of the first groove 41. In the present embodiment, the protrusion 33 of the lock head 3 and the cutout 42 formed on the sleeve 4 differ by a predetermined angle in the circumferential direction, for example, as Figure 5 As shown, the angles of the two differ by 180° in the circumferential direction. However, the present invention is not limited thereto, and the protrusion 33 and the cutout 42 may differ by any predetermined angle, for example, between 90° and 180°.

[0051] In this embodiment, the protrusion 33, the first groove 41 and the cutout 42 together constitute the first position locking mechanism of the rod body 1 in the present invention, and the first position locking mechanism is configured to lock the sliding sleeve 4 in the first position when the sliding sleeve 4 is in the first position without sliding to the second position, which will be described in detail below.

[0052] Further, the sleeve 4 can slide between a first position and a second position on a sleeve seat 8 fixed on the rear door panel (door), and the sleeve seat 8 can be fastened to the rear door panel by a plurality of screws (not shown), for example. Specifically, in this embodiment, the sleeve 4 is provided with a slide groove 43 on both sides, and the sleeve seat 8 is provided with a guide protrusion 81 that cooperates with the slide groove 43 to guide the sliding of the sleeve 4. As shown in the figure, in this embodiment, the bottom of the sleeve 4 is formed with a slide groove 43 extending over the axial length of the entire sleeve 4 on both sides. The sleeve seat 8 is formed with a guide protrusion 81 corresponding to the slide groove 43, each guide protrusion 81 forming a cross section similar to an L shape, and a part of the guide protrusion 81 can be respectively inserted into the slide groove 43, thereby guiding the sliding of the sleeve 4 relative to the sleeve seat 8.

[0053] The second rod portion 6 of the rod portion is also formed with a flange 62 (as an example of a stopper), which is an annular flange in this embodiment. Figure 6 ) and when it abuts against the flange 62 on the second rod portion 6, the sliding sleeve 4 can be prevented from sliding further downward.

[0054] The rod body 1 according to the embodiment of the present invention is basically constructed as described above. The operation of the sliding sleeve 4 sliding between the first position and the second position relative to the rod portion (the first rod portion 5 and the second rod portion 6) of the rod body 1 and the sliding sleeve seat 8 along the axial direction, and the operation of the lock head 3 folding relative to the rod portion will be described below.

[0055] During assembly, the insert handle 31 at the lower end of the lock head 3 is inserted into the second groove 51 at the upper end of the first rod 5, so that the first pin hole 32 and the second pin hole 52 are aligned, and then the positioning pin 7 is passed through the first pin hole 32 and the second pin hole 52, so that the lock head 3 and the first rod 5 are connected together. Then, the lower end of the first rod 5 is inserted into the cylindrical portion 61 of the second rod 6 through the sliding sleeve 4 and fixed relative to the second rod 6. In this state, the positioning pin 7 and its vicinity are exposed and the lock head 3 is in a state that can be folded relative to the rod of the rod body 1, and the protrusion 33 is not aligned with the cutout 42 on the sliding sleeve 4, and the angle difference between the two in the circumferential direction is 180°. Subsequently, the handle 2 of the rear door panel is rotated 180°, so that the rod body 1 and the lock head 3 connected thereto are rotated 180° together. In this case, the rod body 1 and the lock head 3 at its upper end are rotated 180° relative to the sliding sleeve 4, so that the protrusion 33 on the lock head 3 is aligned with the cutout 42 on the sliding sleeve 4. More specifically, the rod of the rod body 1 is rotated (for example, 180°) relative to the sliding sleeve 4 to a specific angular position, at which the protrusion 33 on the lock head 3 is aligned with the notch 42 on the sliding sleeve 4. In this state, the sliding sleeve 4 can slide upward from the second position to the first position, so that the protrusion 33 of the lock head 3 slides through the notch 42 to the first groove 41 formed on the inner circumferential surface of the sliding sleeve 4. Then, the handle 2 is rotated again, driving the rod body 1 and the lock head 3 at the upper end thereof to rotate together, so that the rod of the rod body 1 (and the lock head 3) leaves the specific angular position relative to the sliding sleeve 4, so that the protrusion 33 enters the first groove 41 and abuts against the upper and lower surfaces of the first groove 41, thereby locking the sliding sleeve 4 in the first position without sliding to the second position. In this process, the rod (and the lock head 3) can rotate 180° relative to the sliding sleeve 4. However, the present invention is not limited to this. The rod (and the lock head 3) can be rotated at any angle relative to the sliding sleeve 4, as long as the rod body (and the lock head 3) leave the specific angular position relative to the sliding sleeve 4 and the protrusion 33 enters the first groove 41 and abuts against the upper and lower surfaces of the first groove 41.

[0056] When it is necessary to fold the container, for example, the lock head 3 needs to be folded relative to the rod portion of the rod body 1, such as Figure 7As shown. Specifically, first, the notch 3a of the lock head 3 is disengaged from the lock seat at the edge of the top plate of the container, and then the handle 2 is turned to rotate the rod portion of the rod body 1 and the lock head 3 relative to the sleeve 4 to a predetermined angle to a specific angle position, at which the protrusion 33 on the lock head 3 is aligned with the cutout 42 on the sleeve 4. In this state, the sleeve 4 can be released from the state of being locked in the first position, that is, the sleeve 4 can slide from the first position to the second position. When the sleeve 4 has been moved from the first position to the second position, the sleeve 4 abuts against the flange 62 provided on the second rod portion 6, thereby preventing the sleeve 4 from sliding further downward. At this time, since the sleeve 4 is in the second position, the positioning pin 7 and its vicinity are exposed, as shown in FIG. Figure 6 Then, the lock head 3 can be rotated with the positioning pin 7 as the axis, so that the lock head 3 can be folded relative to the rod portion of the rod body 1, as shown in FIG. Figure 7 After that, since the lock head 3 has been folded, the height of the door rod is lower than the upper edge of the rear door opening of the container, so the door rod and the rear door plate can be pushed down to the bottom plate of the container toward the inside of the container.

[0057] According to the above-mentioned structure, the sliding sleeve 4 can be locked in the first position by the first position locking mechanism composed of the protrusion 33, the first groove 41 and the cutout 42. Therefore, even when the cargo container is transported in a relatively bumpy transportation environment, it is possible to prevent the sliding sleeve 4 from vibrating up and down, causing the positioning pin 7 and the surrounding part to be accidentally exposed, thereby causing the lock head 3 to be accidentally folded. Therefore, the lock head of the door rod reliably fixes the door panel in place to prevent, for example, the rear door panel of the container from shaking.

[0058] In addition, as described above, the sleeve 4 can slide from the first position to the second position relative to the rod and the sleeve seat 8 so as to fold the lock head 3 relative to the rod, and the sliding is a movement in a direction away from the lock head 3. Therefore, compared with the structure of, for example, Chinese Patent ZL200820177991.0 in which the positioning sleeve moves toward the lock head so as to fold the lock head, the size of the lock head side of the door rod for the sleeve to slide can be reduced, so the sleeve can be set at a position closer to the lock head, thereby ensuring the rigidity of the connection between the lock head and the rod of the door rod.

[0059] The present invention is not limited to the above-described configuration, but various modifications and variations are possible.

[0060] For example, in the above-described configuration, the lock head 3 and the rod (the first rod and the second rod) are connected to each other via the positioning pin 7. However, the present invention is not limited thereto, and the lock head 3 can be connected to the rod via other structures, as long as the lock head 3 can be folded relative to the rod.

[0061] For example, in the above-mentioned structure, the lock head 3 is folded relative to the rod portion with the positioning pin 7 as the axis. However, the present invention is not limited thereto, and the lock head 3 can be telescopic relative to the rod portion, as long as the movement of the lock head 3 relative to the rod portion can make the height of the door rod lower than the upper edge of the rear door opening of the container, for example.

[0062] For example, in the above-mentioned structure, the protrusion 33 on the lock head 3 and the notch 42 on the sliding sleeve 4 differ in angle by 180° in the circumferential direction. The handle 2 is turned to drive the rod portion of the rod body 1 and the lock head 3 to rotate 180° relative to the sliding sleeve 4, so that the rod portion is rotated to a specific angle position relative to the sliding sleeve 4. At this specific angle position, the protrusion 33 on the lock head 3 is aligned with the notch 42 on the sliding sleeve 4. However, the present invention is not limited thereto, and the protrusion 33 on the lock head 3 and the notch 42 on the sliding sleeve 4 may differ in angle by any predetermined angle in the circumferential direction, such as 90 degrees, as long as the rod portion of the rod body 1 and the lock head 3 can reach a specific angle position after being rotated relative to the sliding sleeve 4 by the predetermined angle, so that the protrusion 33 on the lock head 3 is aligned with the notch 42 on the sliding sleeve 4.

[0063] For example, in the above-mentioned configuration, the first groove 41 is formed in an annular shape along the inner surface of the sleeve 4. However, the present invention is not limited thereto, and the first groove 41 can be formed in any shape, such as a semicircular shape, a quarter ring shape, or a non-annular shape, as long as it can cooperate with the protrusion 41.

[0064] For example, in the above-described configuration, the cutout 42 is formed on one end surface, i.e., the upper end surface, of the sleeve 4. However, the present invention is not limited thereto, and the cutout 42 may be formed on the other end surface, i.e., the lower end surface, of the sleeve 4, and the first groove 41 may be formed at a position adjacent to the cutout 42.

[0065] For example, in the above-described configuration, the sliding sleeve 4 is provided with a sliding groove 43, and the sliding sleeve seat 8 is provided with a guide protrusion 81 that cooperates with the sliding groove 43. However, the present invention is not limited thereto, and the sliding groove may be formed on the sliding sleeve seat 8, and the guide protrusion may be formed on the sliding sleeve 4.

[0066] In addition, the present invention is not limited to using the slide groove and the guide protrusion to guide the sliding of the slide sleeve relative to the slide sleeve seat, but for example, a protruding pin is provided on one of the slide sleeve and the slide sleeve seat, and a long hole is provided on the other of the slide sleeve and the slide sleeve seat for the protruding pin to slide longitudinally therein. In this state, it is not necessary to provide a stopper for preventing the slide sleeve from continuing to slide when the slide sleeve slides to the second position, and one side of the long hole in the longitudinal direction can be used as a stopper, that is, the protruding pin is abutted against one side of the long hole in the longitudinal direction to prevent the slide sleeve from continuing to slide. In addition, the number of the above-mentioned protruding pins can be any number.

[0067] Further, for example, in the above-described configuration, a flange is provided on the outer periphery of the rod portion (second rod portion 6) to serve as a stopper, which prevents the sliding sleeve 4 from continuing to slide when the sliding sleeve 4 slides to the second position. However, the present invention is not limited thereto, and for example, a stopper may be provided on the sliding sleeve seat or other structures, as long as the stopper can prevent the sliding sleeve from continuing to slide when the sliding sleeve slides to the second position.

[0068] This written description uses examples to disclose the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples will be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements that are not substantially different from the literal language of the claims.

Claims

1. A rod body, one end of which is provided with a lock head, the rod body comprising a sliding sleeve, the sliding sleeve being sleeved on a rod portion of the rod body and being able to slide along the axial direction of the rod portion between a first position and a second position, when the sliding sleeve is in the first position, the lock head is fixed relative to the rod portion, and when the sliding sleeve is in the second position, the lock head is able to move relative to the rod portion; characterized in that: The rod body further includes a first position locking mechanism, which is configured to lock the sliding sleeve at the first position when the sliding sleeve is at the first position, and prevent the sliding sleeve from sliding to the second position.

2. The rod body according to claim 1, characterized in that: The sliding sleeve is locked in the first position by rotating the rod to a specific angle position relative to the sliding sleeve so that the sliding sleeve can slide from the second position to the first position and rotating the rod away from the specific angle position after the sliding sleeve slides to the first position.

3. The rod body according to claim 2, characterized in that: The rod is rotated 180° relative to the sliding sleeve to the specific angular position.

4. The rod body according to claim 2, characterized in that: The first position locking mechanism comprises: A protrusion disposed on the lock head; A first groove disposed on the inner circumferential surface of the sliding sleeve; and a cutout formed on an end surface of the sliding sleeve and communicating with the first groove; By rotating the rod portion relative to the sliding sleeve to the specific angular position, the protrusion is aligned with the cutout, so that the sliding sleeve can slide from the second position to the first position, and by rotating the rod portion relative to the sliding sleeve to leave the specific angular position after the sliding sleeve slides to the first position, the protrusion enters the first groove.

5. The rod body according to claim 4, characterized in that: The lock head comprises an inserting handle, and a first pin hole is formed on the inserting handle. The rod portion includes a first rod portion and a second rod portion, one end of the first rod portion is provided with a second groove, a side surface of the second groove is formed with a second pin hole, and the second rod portion includes a cylindrical portion, the other end of the first rod portion is inserted into and fixed in the cylindrical portion through the sliding sleeve; The insert handle is inserted into the second groove; The positioning pin passes through the first pin hole and the second pin hole on the plug handle, so that when the sliding sleeve is in the second position, the locking head can be folded relative to the rod.

6. A door rod for a container, characterized in that: The invention comprises a rod body as claimed in any one of claims 1 to 5.

7. The door bar for a container according to claim 6, characterized in that: The door rod is installed on the door, and the door comprises a sliding sleeve seat fixed thereon, and the sliding sleeve can slide on the sliding sleeve seat.

8. The door bar for a container according to claim 7, characterized in that: One of the sliding sleeve and the sliding sleeve seat is provided with a sliding groove, and the other of the sliding sleeve and the sliding sleeve seat is provided with a guiding protrusion matched with the sliding groove.

9. The door bar for a container according to claim 8, characterized in that: A stopper is provided on the rod portion or the sliding sleeve seat, and the stopper prevents the sliding sleeve from sliding when the sliding sleeve slides to the second position.

10. The door bar for a container according to claim 7, characterized in that: One of the sliding sleeve and the sliding sleeve seat is provided with a protruding pin, and the other of the sliding sleeve and the sliding sleeve seat is provided with a long hole in which the protruding pin slides.

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