Limiting components for shelves

Abstract

The present application provides a limit assembly for a shelf, which belongs to the field of logistics warehousing technology. Aiming at the problem that the limit assembly for the shelf cannot be restored after deformation, resulting in high maintenance costs and affecting the structural safety of the shelf, the present application provides a limit assembly for the shelf, including a baffle and connecting pieces arranged at both ends of the baffle, the connecting pieces are used to be fixedly connected to the shelf; the baffle is made of elastic material, and the connecting piece is made of rigid material; the two ends of the baffle are fixedly connected to the shelf through the connecting piece, at least one side of the baffle is set as a blocking surface, and the end of the baffle is movable relative to the connecting piece in the extension direction of the baffle; the baffle has an initial state when the blocking surface is not subjected to external force, when the blocking surface is subjected to external force, the baffle deforms so that the two ends of the baffle move respectively relative to the connecting piece, and when the external force is less than the rebound force of the baffle, the baffle returns along the deformation path and returns to the initial state. The present application reduces the frequency of damage and replacement of the limit assembly.

Description

Technical Field

[0001] The present application relates to the field of logistics and warehousing technology, and in particular to a position limiting component for a shelf. Background Art

[0002] In logistics warehousing operations, the storage and retrieval of goods on high shelves usually requires manual forklifts. When storing palletized goods, the placement of the pallet on the beam needs to be judged by the naked eye, which may result in a large position deviation, posing a safety risk to people and goods. Especially when the beam is high, the line of sight is not good, and it is easier to make inaccurate judgments. Therefore, a limit component is usually installed on the back of the shelf to limit the position of the pallet on the beam to prevent the pallet from falling from the back of the beam. The limit component can assist personnel in judging the correct position of the pallet, reduce the difficulty of operation, and improve safety.

[0003] Traditional shelf limiter components are usually single rods connected to the columns. The rods are made of steel and are easily bent and deformed backwards after being hit by a pallet. This is irreversible and the limiter loses its limiter function. In double-row shelves installed back to back, the deformed limiter will also affect the storage of goods in the other row. This requires frequent inspections of the limiter deformation, and the deformed damaged parts need to be replaced frequently, which increases the workload and maintenance costs. At the same time, since the traditional steel back bar is also rigidly connected to the shelf, the limiter will transfer the impact force to the shelf column after being hit, which poses a hidden danger to the shelf's structural safety. Summary of the invention

[0004] The purpose of the present application is to solve the problem in the prior art that the position limiting assembly for the shelf cannot be restored after deformation, resulting in high maintenance costs and affecting the structural safety of the shelf. Therefore, the present application provides a position limiting assembly for the shelf, which utilizes the elastic deformation characteristics of the elastic material and the fact that the blocking rod can move relative to the connecting member, so that the blocking rod moves along its extension direction and undergoes elastic deformation after being hit within the tolerance range, and can return and recover along the deformation path, thereby reducing the damage and replacement frequency of the position limiting assembly, thereby reducing the maintenance cost of the position limiting assembly and the shelf, and the impact of the position limiting assembly on the structural safety of the shelf.

[0005] The embodiment of the present application provides a limiting assembly for a shelf, comprising a stopper rod and connecting members arranged at both ends of the stopper rod, wherein the connecting members are used to be fixedly connected to the shelf;

[0006] The material of the blocking rod is elastic material, and the material of the connecting piece is rigid material;

[0007] The two ends of the blocking rod are fixedly connected to the shelf through the connecting member, at least one side of the blocking rod is set as a blocking surface, and in the extension direction of the blocking rod, the end of the blocking rod is movable relative to the connecting member;

[0008] The baffle rod has an initial state when the blocking surface is not subjected to external force. When the blocking surface is subjected to external force, the baffle rod is deformed so that the two ends of the baffle rod move respectively relative to the connecting member. When the external force is less than the rebound force of the baffle rod, the baffle rod returns along the deformation path and restores to the initial state.

[0009] By adopting the above technical scheme, the elastic deformation characteristics of the elastic material and the movable end of the baffle rod relative to the connecting piece are utilized, so that the baffle rod can undergo elastic deformation after being hit by an external force within the bearing range. The degree of deformation is larger than that of a rigid baffle rod, which can provide the operator with sufficient reaction time to withdraw the goods. At the same time, the elastic deformation can also absorb the impact energy, and when the external force is less than the rebound force of the baffle rod, the baffle rod returns to its original state and continues to maintain an accurate and stable limiting effect, thereby reducing the damage and replacement frequency of the limiting component, and further reducing the maintenance cost of the limiting component and the shelf; in addition, the movement of the baffle rod relative to the connecting piece can provide space for the free deformation of the baffle rod, thereby reducing the pulling effect of the baffle rod deformation on the connecting piece within a certain range, that is, reducing the pulling effect of the connecting piece on the shelf, and thereby reducing the impact on the safety of the shelf structure; the baffle rod can also be fully deformed within a certain range, thereby absorbing the impact energy and preventing it from transmitting the impact external force to the shelf, affecting the safety of the shelf structure.

[0010] In one embodiment, a limited space is provided on the connecting member, the extension direction of the limited space is parallel to the extension direction of the blocking rod in the initial state, and one end of the limited space in the extension direction is set as a first limited end, and the end of the blocking rod is provided with a first limited portion that cooperates with the limited space;

[0011] When the blocking surface is subjected to external force, the blocking rod is deformed so that the two ends of the blocking rod move relative to each other, and drive the first limiting part to move in the limiting space; when the first limiting part moves to the first limiting end, the first limiting end is used to limit further movement of the first limiting part and prevent the blocking rod from continuing to deform.

[0012] The above technical solution is adopted to prevent the blocking surface of the blocking rod from being separated from the connecting piece and falling along the extension direction toward the center thereof after being hit by excessive external force, thereby causing a safety accident.

[0013] In one embodiment, the limiting space is configured as a strip-shaped hole, and the limiting space includes the first limiting end and the second limiting end;

[0014] When the blocking rod is in the initial state, or when the blocking rod returns along the deformation path and recovers to the initial state, the first limiting portion of the blocking rod abuts against the second limiting end.

[0015] By adopting the above technical solution, when the blocking rod is subjected to external force in its extension direction, the second limit end can block the first limit part of the blocking rod, so that the blocking rod cannot be separated from the connecting piece and fall off, thereby ensuring the safety of the blocking rod during use; and it can improve the stability of the blocking rod in the initial state, avoid the blocking rod from shaking in its extension direction, thereby improving the blocking and limiting effect.

[0016] In one embodiment, the connector includes a plug-in portion and a mounting portion connected to the plug-in portion, and the mounting portion is used to be fixedly connected to the shelf;

[0017] The plug-in portion is provided with a plug-in hole, and the blocking rod is movably arranged in the plug-in hole;

[0018] An extension plate extending to the bottom of the blocking rod is arranged at the periphery of the plug hole, and the extension plate is provided with the limiting space corresponding to the blocking rod; and the first limiting portion of the blocking rod is arranged corresponding to the limiting space of the extension plate.

[0019] In one embodiment, in the connecting members at both ends of the blocking rod, the extension plates of the two connecting members extend relative to each other and are located between the plug-in portions of the two connecting members; and the extension plates abut against the blocking rod to support the blocking rod.

[0020] By adopting the above technical solution, the blocking rod can be deformed in the direction away from the extension plate and detached from the connecting piece, thereby facilitating the maintenance and replacement of the blocking rod; and the blocking rod is supported by the extension plate, which can improve the stability of the blocking rod.

[0021] In one embodiment, the first limiting portion is a bolt, and the first limiting portion passes through the limiting space and is detachably connected to the blocking rod.

[0022] By adopting the above technical solution, the blocking rod is restricted in the direction away from the extension plate, thereby preventing the blocking rod from deforming in the direction away from the extension plate and separating from the connecting piece due to misoperation, thereby improving the safety of the shelf.

[0023] In one embodiment, the connecting member includes a second limiting portion. When the blocking rod is in an initial state, the second limiting portion abuts against an end surface of the blocking rod to limit the blocking rod from being separated from the connecting member along its extension direction.

[0024] By adopting the above technical solution, when the baffle rod is subjected to external force in its extension direction, the second limiting portion can block the end face of the baffle rod, so that the baffle rod cannot be detached from the connecting piece and fall off, thereby ensuring the safety of the baffle rod during use; and it can improve the stability of the baffle rod in the initial state, avoiding the baffle rod from shaking in its extension direction, thereby improving the blocking and limiting effect.

[0025] In one embodiment, the connecting member is provided with a limiting groove adapted to the end of the blocking rod;

[0026] The end of the baffle rod is arranged in the limiting groove, and the bottom of the limiting groove abuts against the end surface of the baffle rod, and the inner wall of the limiting groove wraps the outer wall surface of the end of the baffle rod; wherein the bottom of the limiting groove is the second limiting portion.

[0027] In one embodiment, it also includes two third limiting portions arranged on the blocking rod, and the two third limiting portions are located between the two connecting members at the ends of the blocking rod, and when the blocking rod is in the initial state, the two third limiting portions abut against the corresponding connecting members to limit the blocking rod from being separated from the connecting members along its extension direction.

[0028] By adopting the above technical solution, when the baffle rod is subjected to external force in its extension direction, the connecting piece can block the third limiting portion of the baffle rod, so that the baffle rod cannot be detached from the connecting piece and fall off, thereby ensuring the safety of the baffle rod during use; and it can improve the stability of the baffle rod in the initial state, avoiding the baffle rod from shaking in its extension direction, thereby improving the blocking and limiting effect.

[0029] In one embodiment, the material of the blocking rod is a polymer material, and the material of the connecting piece is a metal material.

[0030] Other features and corresponding beneficial effects of the present invention are described in the latter part of the specification, and it should be understood that at least part of the beneficial effects become obvious from the description in the specification of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the limiting component in the present invention;

[0032] Figure 2 is a schematic top view of the limit assembly of the present invention in a use state;

[0033] Figure 3 This is a schematic diagram of the structure of the limit assembly in the present invention when in use;

[0034] Figure 4 is a schematic structural diagram of a position limiting assembly including a second position limiting portion in the present invention;

[0035] Figure 5 It is a schematic structural diagram of the limiting assembly including the third limiting portion in the present invention.

[0036] Description of reference numerals: 1, blocking rod; 11, blocking surface; 12, first limiting portion; 13, third limiting portion;

[0037] 2. Connecting member; 21. Limiting space; 211. First limiting end; 212. Second limiting end; 22. Plug-in portion; 221. Plug-in hole; 23. Mounting portion; 231. Fastener; 24. Extension plate; 25. Limiting groove; 251. Second limiting portion;

[0038] 3. Column; 4. Beam; 41. Beam connector. DETAILED DESCRIPTION

[0039] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0040] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In the description of the invention of this application, unless otherwise specified, "multiple" means two or more.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0045] like Figure 1 As shown, an embodiment of the present application provides a limiting assembly for a shelf, including a barrier rod 1 and connectors 2 arranged at both ends of the barrier rod 1, wherein the connectors 2 are used for fixed connection with the shelf, such as welding, detachable connection, etc., so that it can be matched with shelves of different manufacturers and has a wide range of applications. In one embodiment, the shelf is made of rigid metal material and can be used to place heavy goods.

[0046] In one embodiment, both ends of the blocking rod 1 are fixedly connected to the shelf through the connecting piece 2, so that the goods already placed on the shelf can be limited and blocked, and the goods can be blocked during the placement process.

[0047] like Figure 2 and Figure 3 As shown, the limit assembly can be arranged at the upper rear of the beam 4 at the back of the shelf, and connected to two adjacent columns 3 respectively through two connectors 2. It can be understood that, since the front and rear ends of the shelf pallet generally need to protrude a certain distance from the beam 4 when it is placed on the shelf beam 4, the stop bar 1 is installed at the upper rear of the shelf beam 4, and a distance for the pallet to protrude from the beam 4 needs to be reserved; at the same time, when the connector 2 is installed on the column 3, the beam connector 241 should be avoided; and the goods are usually placed in a pallet, and the cargo lifting equipment lifts the pallet and places the pallet together with the goods on the shelf, so the installation height of the stop bar 1 should be between the highest point and the lowest point of the pallet.

[0048] In other alternative embodiments, the installation method and position of the limit assembly on the shelf are not limited. For example, the two connecting parts 2 can also be connected to the two ends of the beam 4 respectively; the limit assembly can also be installed on the side of the shelf and connected to the corresponding columns 3 through two connections 2 respectively; the installation form of the limit assembly on the shelf is not limited, and it can be installed parallel to the beam 3, parallel to the column 1, or inclined relative to the column 1.

[0049] In one embodiment, the barrier rod 1 is made of elastic material, and the end of the barrier rod 1 is movable relative to the connecting member 2 in the extension direction of the barrier rod 1; at this time, the extension direction of the barrier rod 1 is the length direction of the barrier rod 1. Since the connecting member 2 is fixedly connected to the shelf, the barrier rod 1 is movable relative to the shelf.

[0050] It should be noted that when placing goods on the shelf, it is entirely necessary to rely on manual judgment to determine whether the placement is accurate. Therefore, in some cases, the goods will exceed the placement range of the shelf and hit the barrier rod 1 of the limit assembly. At this time, the reaction force caused by the barrier rod 1 on the goods can remind the operator that the placement is incorrect. However, there is a certain time delay from the operator sensing the reaction force of the barrier rod 1 to withdrawing the goods, resulting in a relatively large impact force and impact distance of the goods when the goods are placed incorrectly. Therefore, the rigid barrier rod in the prior art is prone to bend and deform backwards and cannot be restored, thus losing its limiting effect.

[0051] In the embodiment of the present application, the material of the barrier rod 1 is an elastic material. In the extension direction of the barrier rod 1, the end of the barrier rod 1 is movable relative to the connecting member 2, so that the barrier rod 1 can undergo elastic deformation after being hit by an external force within the bearing range. The degree of deformation is larger than that of a rigid barrier rod. On the one hand, it provides the operator with sufficient reaction time to withdraw the error. On the other hand, the impact energy can be absorbed through elastic deformation. After the operator withdraws the goods, the barrier rod 1 can return along the deformation path and restore to its initial state, continuing to maintain accurate and stable limiting effect, thereby reducing the damage and replacement frequency of the limiting component, and further reducing the maintenance cost of the limiting component and the shelf.

[0052] In one embodiment, at least one side of the blocking rod is configured as a blocking surface, and the blocking surface is used to block the goods on the shelf, thereby achieving blocking and limiting.

[0053] In one embodiment, the blocking rod 1 has an initial state when the blocking surface 11 is not subjected to external force, that is, Figure 1-5 The state shown in . When the blocking surface 11 is subjected to an external force, the blocking rod 1 is deformed so that the two ends of the blocking rod 1 move relative to the connecting member 2 respectively. When the external force is less than the rebound force of the blocking rod 1, the blocking rod 1 returns along the deformation path and recovers to the initial state. Among them, the movement of the blocking rod 1 relative to the connecting member 2 can provide space for the free deformation of the blocking rod 1, that is, the two ends of the blocking rod 1 can move relative to the connecting member 2 respectively, thereby reducing the pulling effect of the deformation of the blocking rod 1 on the connecting member 2 within a certain range, that is, reducing the pulling effect of the connecting member 2 on the shelf, thereby reducing the impact on the safety of the shelf structure; at the same time, it can also enable the blocking rod 1 to fully deform within a certain range, thereby absorbing the impact energy and preventing it from transmitting the impact external force to the shelf and affecting the safety of the shelf structure.

[0054] In a usage scenario, when the blocking surface is subjected to an external force, the blocking rod 1 undergoes elastic deformation, so that the two ends of the blocking rod 1 move relative to each other. At this time, the blocking rod 1 undergoes a bending elastic deformation.

[0055] In one embodiment, the barrier rod 1 is a hollow rod body, which can increase the deformability of the barrier rod 1, further reduce the frequency of damage and replacement, and reduce maintenance costs and the impact on the safety of the shelf structure.

[0056] In one embodiment, the material of the blocking rod 1 is a polymer material. A polymer material is also called a polymer material. It is a material composed of a polymer compound as a matrix and other additives (auxiliaries), and has a high elasticity. Polymer materials mainly include plastics, synthetic rubbers, and synthetic fibers. In this embodiment, plastics, especially high-density polyethylene (HDPE), are preferably used, so that the blocking rod 1 has good bending elasticity and can provide a sufficiently large rebound force to achieve a blocking and limiting effect.

[0057] In one embodiment, the connecting member 2 is made of a rigid material to ensure the stability of the connection between the limiting assembly and the shelf.

[0058] Furthermore, the connecting member 2 is made of metal material, such as stainless steel, aluminum alloy, etc., or can also be made of the same metal material as the column 3 of the shelf.

[0059] In one embodiment, see again Figure 2 A limited space 21 is provided on the connecting member 2, and the extension direction of the limited space 21 is parallel to the extension direction of the blocking rod 1 in the initial state. One end of the limited space 21 in its extension direction is set as a first limited end 211, and the end of the blocking rod 1 is provided with a first limited portion 12 that matches the limited space 21.

[0060] In one embodiment, when the blocking surface 11 is subjected to external force, the blocking rod 1 is deformed so that the two ends of the blocking rod 1 move relative to each other, and drive the first limiting portion 12 to move in the limiting space 21. When the first limiting portion 12 moves to the first limiting end 211, the first limiting end 211 is used to limit the further movement of the first limiting portion 12 and prevent the blocking rod 1 from continuing to deform, thereby preventing the blocking surface 11 of the blocking rod 1 from being detached from the connecting member 2 and falling along the extension direction toward its center after being hit by excessive external force, thereby causing a safety accident.

[0061] In one embodiment, the limiting space 21 is configured as a strip-shaped hole, and the limiting space 21 includes a first limiting end 211 and a second limiting end 212. It should be noted that the strip-shaped hole may be a through hole or a blind hole.

[0062] When the baffle rod 1 is in the initial state, or the baffle rod 1 returns along the deformation path and restores to the initial state, the first limiting portion 12 of the baffle rod 1 abuts against the second limiting end 212, so that when the baffle rod 1 is subjected to external force in its extension direction, for example, the end face of the baffle rod 1 is hit, the second limiting end 212 can block the first limiting portion 12 of the baffle rod 1, so that the baffle rod 1 cannot separate from the connecting member 2 and fall off, thereby ensuring the safety of the baffle rod 1 during use; and can improve the stability of the baffle rod 1 in the initial state, avoid the baffle rod 1 from shaking in its extension direction, thereby improving the blocking and limiting effect.

[0063] In one embodiment, see again Figure 1 and Figure 2 The connector 2 includes a plug-in portion 22 and a mounting portion 23 connected to the plug-in portion 22 .

[0064] The mounting portion 23 is used to be fixedly connected to the shelf, for example, fixedly connected to the shelf via a fastener 231 .

[0065] The inserting portion 22 is provided with an inserting hole 221 , and the blocking rod 1 is movably disposed in the inserting hole 221 .

[0066] An extension plate 24 extending to the bottom of the blocking rod 1 is disposed around the plug hole 221 . The extension plate 24 is provided with a limited space 21 corresponding to the blocking rod 1 . The first limiting portion 12 of the blocking rod 1 is provided corresponding to the limiting space 21 of the extension plate 24 .

[0067] In other alternative embodiments, the connecting member 2 may also include only the plug-in portion 22, which is fixedly connected to the shelf; the connecting member 2 may also include only the extension plate 24, which is fixedly connected to the shelf, and so on. It is only necessary for the connecting member 2 to provide the barrier rod 1 with a connection function with the shelf and to provide the barrier rod 1 with a sliding function.

[0068] In one embodiment, in the connectors 2 at both ends of the barrier rod 1, the extension plates 24 of the two connectors 2 extend relative to each other and are located between the plug-in portions 22 of the two connectors 2. In other alternative embodiments, the extension plates 24 extend opposite to each other and are located outside the plug-in portions 22 of the two connectors 2.

[0069] In one embodiment, the extension plate 24 abuts against the barrier rod 1 to support the barrier rod 1, which can improve the stability of the barrier rod 1. In other alternative embodiments, there is a gap between the extension plate 24 and the barrier rod 1, which can reduce the friction of the barrier rod 1 during movement.

[0070] In one embodiment, the first limiting portion 12 is a bolt, and the first limiting portion 12 passes through the limiting space 21 and is detachably connected to the blocking rod 1, so that the blocking rod 1 is restricted in the direction away from the extension plate 24, thereby avoiding misoperation that causes the blocking rod 1 to deform in the direction away from the extension plate 24 and separate from the connecting member 2, thereby improving the safety of the shelf.

[0071] At this time, the first limiting portion 12 can be disassembled so that the blocking rod 1 can be separated from the extension plate 24 of the connecting member 2, and then the blocking rod 1 can be lifted in the direction indicated by the arrow a, so that the two ends of the blocking rod 1 move in the extension direction thereof, that is, in the direction indicated by the arrow b, and finally separate from the connecting member 2, so that the blocking rod 1 is disassembled. This disassembly method is particularly suitable for disassembling a single blocking rod 1 in a row of limiting assemblies, and will not affect the blocking rods 1 in other adjacent limiting assemblies.

[0072] Alternatively, the first limiting portion 12 may be completely disassembled, that is, the first limiting portion 12 is separated from the blocking rod 1 and the connecting member 2, and then the blocking rod 1 may be moved in the direction indicated by the arrow c, so that both ends of the blocking rod 1 are respectively moved in the extension direction thereof and finally separated from the connecting member 2, thereby realizing the disassembly of the blocking rod 1. This disassembly method can further reduce the impact of the disassembly process on the safety of the shelf structure, and is more convenient when disassembling the blocking rods 1 in batches.

[0073] In other alternative embodiments, the first limiting portion 12 is a protrusion and can freely enter and exit the limiting space. At this time, the blocking rod 1 can be directly lifted in the direction indicated by the arrow a, so that the two ends of the blocking rod 1 move along their extension directions respectively, that is, move in the direction indicated by the arrow b at this time, so that the two ends of the blocking rod 1 are separated from the connecting member 2, thereby realizing the rapid disassembly of the blocking rod 1, and there is no need to disassemble and install the first limiting portion 12, thereby facilitating the maintenance and replacement of the blocking rod 1.

[0074] On the other hand, during use, the barrier rod 1 is susceptible to forces from the blocking direction, forces toward the end of the barrier rod 1, and forces on the barrier rod 1 from top to bottom. For example, during the process of placing goods, the goods are lifted too high and the barrier rod 1 is pressed during placement. However, the barrier rod 1 is not easily subjected to impact forces from bottom to top. Therefore, when the first limit portion 12 is raised, the disassembly efficiency can be ensured while preventing the barrier rod 1 from falling off during normal use.

[0075] In one embodiment, Figure 4 As shown, the connecting member 2 includes a second limiting portion 251. When the blocking rod 1 is in the initial state, the second limiting portion 251 abuts against the end face of the blocking rod 1 to limit the blocking rod 1 from being separated from the connecting member 2 along its extension direction, so that when the blocking rod 1 is subjected to an external force in its extension direction, for example, the blocking rod 1 is subjected to an oblique impact, the second limiting portion 251 can block the end face of the blocking rod 1, so that the blocking rod 1 cannot be separated from the connecting member 2 and fall, thereby ensuring the safety of the blocking rod 1 during use; and can improve the stability of the blocking rod 1 in the initial state, prevent the blocking rod 1 from shaking in its extension direction, thereby improving the blocking and limiting effect.

[0076] In one embodiment, the connecting member 2 is provided with a limiting groove 25 adapted to the end of the blocking rod 1 .

[0077] The end of the blocking rod 1 is arranged in the limiting groove 25, and the bottom of the limiting groove 25 abuts against the end surface of the blocking rod 1, and the inner wall of the limiting groove 25 wraps the outer wall surface of the end of the blocking rod 1; wherein, the bottom of the limiting groove 25 is the second limiting portion 251.

[0078] In one embodiment, Figure 5 As shown, the limiting assembly also includes two third limiting portions 13 arranged on the blocking rod 1, the two third limiting portions 13 are located between the two connecting members 2 at the ends of the blocking rod 1, and when the blocking rod 1 is in the initial state, the two third limiting portions 13 abut against the corresponding connecting members 2 to limit the blocking rod 1 from being separated from the connecting member 2 along its extension direction, so that when the blocking rod 1 is subjected to an external force in its extension direction, for example, the end face of the blocking rod 1 is hit, the connecting member 2 can block the third limiting portion 13 of the blocking rod 1, so that the blocking rod 1 cannot be separated from the connecting member 2 and fall, thereby ensuring the safety of the blocking rod 1 during use; and can improve the stability of the blocking rod 1 in the initial state, avoid the blocking rod 1 from shaking in its extension direction, thereby improving the blocking and limiting effect.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A position limiting assembly for a shelf, characterized in that: It includes a barrier rod and connecting pieces arranged at both ends of the barrier rod, and the connecting pieces are used to be fixedly connected to the shelf; The material of the blocking rod is elastic material, and the material of the connecting piece is rigid material; The two ends of the blocking rod are fixedly connected to the shelf through the connecting member, at least one side of the blocking rod is set as a blocking surface, and in the extension direction of the blocking rod, the end of the blocking rod is movable relative to the connecting member; The blocking rod has an initial state when the blocking surface is not subjected to an external force. When the blocking surface is subjected to an external force, the blocking rod is deformed so that both ends of the blocking rod move relative to the connecting member respectively. When the external force is less than the resilience of the blocking rod, the blocking rod returns along the deformation path and returns to the initial state. A limited space is provided on the connecting member, the extension direction of the limited space is parallel to the extension direction of the blocking rod in the initial state, and one end of the limited space in the extension direction is set as a first limited end, and the end of the blocking rod is provided with a first limited portion that cooperates with the limited space; When the blocking surface is subjected to an external force, the blocking rod is deformed so that the two ends of the blocking rod move relative to each other, and drive the first limiting portion to move within the limiting space. When the first limiting portion moves to the first limiting end, the first limiting end is used to limit the further movement of the first limiting portion and prevent the blocking rod from continuing to deform. The limiting space is configured as a strip-shaped hole, and the limiting space includes the first limiting end and the second limiting end; When the blocking rod is in the initial state, or when the blocking rod returns along the deformation path and returns to the initial state, the first limiting portion of the blocking rod abuts against the second limiting end; The connecting member includes a plug-in portion and a mounting portion connected to the plug-in portion, and the mounting portion is used to be fixedly connected to the shelf; The plug-in portion is provided with a plug-in hole, and the blocking rod is movably arranged in the plug-in hole; An extension plate extending to the bottom of the blocking rod is disposed at the periphery of the plug hole, and the extension plate is provided with the limiting space corresponding to the blocking rod; and the first limiting portion of the blocking rod is provided corresponding to the limiting space of the extension plate; In the connecting members at both ends of the blocking rod, the extension plates of the two connecting members extend relative to each other and are located between the plug-in parts of the two connecting members; and the extension plates abut against the blocking rod to support the blocking rod; The first limiting portion is a bolt, and the first limiting portion passes through the limiting space and is detachably connected to the blocking rod; The connecting member comprises a second limiting portion. When the blocking rod is in an initial state, the second limiting portion abuts against an end surface of the blocking rod to limit the blocking rod from being separated from the connecting member along its extending direction.

2. The position limiting assembly for a shelf according to claim 1, characterized in that: The connecting piece is provided with a limiting groove adapted to the end of the blocking rod; The end of the baffle rod is arranged in the limiting groove, and the bottom of the limiting groove abuts against the end surface of the baffle rod, and the inner wall of the limiting groove wraps the outer wall surface of the end of the baffle rod; wherein the bottom of the limiting groove is the second limiting portion.

3. The position limiting assembly for a shelf according to any one of claims 1 to 2, characterized in that: The material of the blocking rod is a polymer material, and the material of the connecting piece is a metal material.

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