Pull rod heat preservation box

Abstract

The utility model relates to a draw bar heat preservation box, through the arrangement of a connecting assembly, the overall structural stability of the draw bar heat preservation box is enhanced, the risk that a connecting part is broken due to frequent use of a draw bar is reduced, and therefore the durability of a product is remarkably improved, and the service life of the product is remarkably prolonged. Specifically, stable connection of the pull rod in the using process is ensured by adopting a connecting assembly composed of a fixing cylinder, a connecting shaft and a positioning block, so that acting force can act on the box body with a larger contact area, the connecting strength of the pull rod and the box body is greatly improved, and the problem of connection looseness or breakage is avoided. The support in the pulling assembly can flexibly rotate in the connecting groove, the support can be attached to the box body when the box body is not used, space is saved, the support can be rapidly locked through the limiting piece when the box body is used, and stability in the pulling process is ensured.

Description

Technical Field

[0001] This utility model relates to the field of insulated boxes, and more particularly to a pull-rod insulated box. Background Technology

[0002] Portable insulated boxes are becoming increasingly widely used, serving as an important tool for maintaining the appropriate temperature of goods during transportation. To facilitate the movement of heavier insulated boxes, many products on the market are equipped with pull rods and caster systems.

[0003] However, in actual use, existing insulated boxes often have some problems. Especially when the insulated box is loaded with heavy items, the user will exert great stress on the connection between the pull rod and the box body when pulling the box. There are very few connection points between the pull rod and the box body, so the connection points are prone to breakage or damage, resulting in poor product durability. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a pull-rod insulated box that can solve the problem of poor product durability.

[0005] This utility model provides a pull-rod insulated box, which includes:

[0006] A thermal insulation component, comprising a housing and a cover, wherein the cover is detachably mounted on the housing and a connecting groove is provided on the side wall of the housing;

[0007] A connecting assembly, comprising a fixed cylinder, a connecting shaft, and a positioning block, wherein the fixed cylinders are all fixedly disposed on the side wall of the housing, the connecting shaft passes through the connecting groove and each of the fixed cylinders, and the positioning block is disposed within the connecting groove; and

[0008] A pulling assembly, comprising a bracket, a handle, and a limiting member, wherein the bracket is located within the connecting groove and is rotatably mounted on the connecting shaft, the handle is mounted on the bracket, and the limiting member is mounted on the housing;

[0009] The bracket can rotate around the connecting shaft, so that the bracket can fit against the box or be fixed to the limiting member, thereby fixing the relative position of the bracket and the box.

[0010] Preferably, the connecting assembly includes two positioning blocks, and two connecting grooves are formed on the side wall of the housing. The two positioning blocks are respectively disposed at one end of each connecting groove, and the other end of the connecting groove is exposed on the outside of the housing for the bracket to be installed.

[0011] Preferably, the insulation component further includes an inner box, which is disposed inside the box body. The top of the inner box is provided with a mounting flange, which covers the top of the box body, and the cover is rotatably connected to the inner box.

[0012] Preferably, the fixing cylinder includes an edge cylinder and a center cylinder, the edge cylinder and the center cylinder are respectively sleeved on the connecting shaft, the edge cylinder is clamped between the mounting flange and the inner wall of the box, and the center cylinder is located between the two connecting grooves.

[0013] Preferably, the limiting component includes a buckle, a limiting hook, and a locking valve. The buckle is detachably mounted on the housing, the limiting hook is rotatably mounted on the buckle, and the locking valve is slidably mounted on the buckle.

[0014] When the locking valve slides to the locking position, it locks the relative position of the limiting hook and the buckle, so that the limiting hook holds and fixes the bracket; when the locking valve slides away from the locking position, it unlocks the limiting hook.

[0015] Preferably, the limiting member further includes a rotating shaft, which is disposed on the buckle, and the limiting hook is rotatably disposed on the rotating shaft.

[0016] Preferably, the outer wall of the box has two recessed grooves at two opposite positions;

[0017] The pulling assembly also includes two rollers, which are rotatably disposed in the two clearance slots in a one-to-one correspondence.

[0018] Preferably, the insulation component further includes two bottom pads, which are respectively disposed at the bottom of the box body.

[0019] Preferably, the pull-rod insulated box further includes a buckle assembly, which includes two buckles and two buckle slots;

[0020] Both buckles are provided on the cover, and both buckle slots are provided on the box. The two buckles and the two buckle slots correspond one-to-one, and the buckles can be detachably locked into the buckle slots.

[0021] Preferably, the bracket includes two support arms, two crossbeams, and two grips;

[0022] Two support arms are symmetrically arranged on the handle, two crossbeams are arranged between the two support arms, two support arms are rotatably arranged on the connecting shaft, and two grip sleeves are respectively arranged at both ends of the handle.

[0023] The following are the beneficial effects of implementing this utility model:

[0024] This utility model relates to a pull-rod insulated box. By setting up connecting components, the overall structural stability of the pull-rod insulated box is enhanced, and the risk of breakage of the connecting parts due to frequent use of the pull rod is reduced, thereby significantly improving the durability and service life of the product.

[0025] Specifically, by using a connecting assembly consisting of a fixed cylinder, a connecting shaft, and a positioning block, a stable connection of the pull rod is ensured during use, allowing the force to be applied to the housing with a larger contact area, greatly increasing the connection strength between the pull rod and the housing, and avoiding problems such as loosening or breakage.

[0026] The bracket in the pulling assembly can rotate flexibly within the connecting slot. When not in use, the bracket can be attached to the box to save space, and when in use, it can be quickly locked by the limiting component to ensure stability during the pulling process. Attached Figure Description

[0027] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally denote like parts.

[0028] Figure 1 This is a schematic diagram of the structure of the pull-rod insulated box in some embodiments of this utility model;

[0029] Figure 2 This is a structural schematic diagram of the pull-rod insulated box in another usage state in some embodiments of this utility model;

[0030] Figure 3 This is a structural schematic diagram of the pull-rod insulated box in a certain usage state in some embodiments of this utility model;

[0031] Figure 4 This is an exploded view of the pull-rod insulated box in some embodiments of this utility model;

[0032] Figure 5 yes Figure 4 The image shown is an enlarged view of the insulated box with a pull rod at point A.

[0033] Figure 6 From another perspective Figure 4 The exploded view of the pull-rod insulated box shown;

[0034] Figure 7 This is a schematic diagram of the structure of the limiting member in some embodiments of this utility model. Detailed Implementation

[0035] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be more thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0036] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Figures 1 to 3 The illustration shows a pull-rod insulated box 10 in some embodiments of the present invention. The pull-rod insulated box 10 has the function of storing items and keeping them warm.

[0040] like Figures 1 to 7 As shown, the pull-rod insulated box 10 includes an insulation component 1, a connecting component 2, and a pulling component 3. The connecting component 2 is disposed on the insulation component 1, and the pulling component 3 is disposed on the connecting component 2.

[0041] The insulation component 1 includes a box body 11 and a cover body 12. The cover body 12 is detachably installed on the box body 11, and a connecting groove 111 is provided on the side wall of the box body 11.

[0042] Understandably, the enclosure 11 is used to store items that require insulation, and its side wall has a connecting groove 111 for mating with the connecting component 2. The cover 12 is detachably placed on the enclosure 11, making it easy for users to open and close the insulation box 10, and also facilitating cleaning and maintenance.

[0043] The connecting assembly 2 includes a fixed cylinder 21, a connecting shaft 22, and a positioning block 23. The fixed cylinders 21 are all fixedly installed on the side wall of the housing 11. The connecting shaft 22 passes through the connecting groove 111 and each fixed cylinder 21. The positioning block 23 is installed in the connecting groove 111.

[0044] Understandably, the fixing cylinder 21 is fixedly installed on the side wall of the housing 11, and the connecting shaft 22 passes through the connecting groove 111 and the fixing cylinder 21 to achieve connection with the pulling assembly 3. The positioning block 23 is set in the connecting groove 111 to play a positioning role and ensure a stable connection between the connecting assembly 2 and the housing 11.

[0045] The pulling assembly 3 includes a bracket 31, a handle 32, and a limiting member 33. The bracket 31 is located in the connecting groove 111 and is rotatably mounted on the connecting shaft 22. The handle 32 is mounted on the bracket 31, and the limiting member 33 is mounted on the housing 11. The bracket 31 can rotate around the connecting shaft 22, so that the bracket 31 can fit against the housing 11 or be fixed to the limiting member 33, thereby fixing the relative position of the bracket 31 and the housing 11.

[0046] Understandably, the bracket 31 is located within the connecting groove 111 and connected to the connecting assembly 2 via the connecting shaft 22, allowing it to rotate around the connecting shaft 22. A handle 32 is mounted on the bracket 31 for easy pulling of the insulation box 10 by the user. A limiting member 33 is provided on the box body 11; when the bracket 31 rotates to a specific position, the limiting member 33 can fix the relative position of the bracket 31 and the box body 11, ensuring that the bracket 31 will not swing during movement and improving the stability of the product's movement.

[0047] Furthermore, the enclosure 11 is preferably made of a material with good thermal insulation properties, such as polyurethane foam or composite materials, to ensure insulation effectiveness. The design of the connecting groove 111 should take into account the size and shape of the connecting components 2 to ensure a tight fit between them. The fixing cylinder 21 is preferably made of high-strength metal to ensure sufficient load-bearing capacity and durability. The number and position of the fixing cylinders 21 should be reasonably arranged according to the size of the enclosure 11 and the load-bearing requirements. The diameter and material of the connecting shaft 22 need to be selected according to the weight and size of the bracket 31 to ensure that the bracket 31 can rotate smoothly without affecting the structural stability of the entire insulation box 10.

[0048] The positioning block 23 can be made of a material with a certain degree of elasticity, such as rubber or plastic, to facilitate insertion and fixation within the connecting groove 111. The material of the bracket 31 also needs to possess a certain strength and toughness to withstand tension and pressure during use. Its shape design should take into account the user's feel and usage habits. The limiting member 33 can be a simple mechanical snap-fit ​​or magnetic device to ensure that the bracket 31 can be securely fixed to the housing 11 during use.

[0049] like Figure 5 As shown, in some embodiments of the pull rod insulated box 10, the connecting component 2 includes two positioning blocks 23, and two connecting grooves 111 are opened on the side wall of the box body 11. The two positioning blocks 23 are respectively arranged at one end of each connecting groove 111, and the other end of the connecting groove 111 is exposed on the outside of the box body 11 and is used for the bracket 31 to be installed.

[0050] Understandably, the design employing two positioning blocks 23 and two connecting grooves 111 enhances the strength and stability of the connection between the bracket 31 and the box body 11, thereby improving the overall durability of the insulation box. The dual positioning blocks further increase the connection points between the connecting shaft 22 and the box body 11, increasing the effective area for force transmission between them, ensuring a stable connection of the bracket 31 during use, and reducing the risk of loosening or breakage.

[0051] It should be noted that the bracket 31 is connected to the housing 11 through two locations, which can eliminate the wear that may be caused by a single connection location to a certain extent.

[0052] like Figures 1 to 4 as well as Figure 5 As shown, in some embodiments of the pull rod insulated box 10, the insulation component 1 further includes an inner box 13, which is disposed inside the box body 11. The top of the inner box 13 is provided with an mounting flange 131, which covers the top of the box body 11. The cover 12 is rotatably connected to the inner box 13.

[0053] Understandably, the inner box 13 is located inside the box body 11 to further improve the insulation effect. The top of the inner box 13 is provided with a mounting flange 131, which covers the top of the box body 11, serving to seal and enhance insulation. The mounting flange 131 is part of the top of the inner box 13; it can tightly fit with the top edge of the box body 11, forming a good seal, thereby improving the insulation performance of the insulation box 10. The mounting flange 131 also serves to fix the lid 12.

[0054] like Figure 5As shown, in some embodiments of the pull rod insulated box 10, the fixed cylinder 21 includes an edge cylinder 211 and a center cylinder 212. The edge cylinder 211 and the center cylinder 212 are respectively sleeved on the connecting shaft 22. The edge cylinder 211 is clamped between the mounting flange 131 and the inner wall of the box body 11, and the center cylinder 212 is located between two connecting grooves 111.

[0055] Understandably, the edge tube 211 is used to fix the connection between the bracket 31 and the box body 11, and increases the stability of the connection by being clamped between the mounting flange 131 and the inner wall of the box body 11. The edge tube 211 can be made of high-strength material to ensure the reliability of the connection. The center tube 212 is located between the two connecting grooves 111 and is mainly used to support the connecting shaft 22 to ensure that the bracket 31 can rotate smoothly. The center tube 212 also needs to have sufficient strength to bear the load generated when the bracket 31 rotates. By using the edge tube 211 and the center tube 212, the strength and stability of the connection between the bracket 31 and the box body 11 are enhanced, thereby improving the overall durability of the insulation box.

[0056] It should be noted that the edge cylinder 211 and the center cylinder 212 can make full contact with the connecting shaft 22 and the line body 11, eliminating the fitting gap at the connection position as much as possible, thereby ensuring the effective area for transmitting force.

[0057] like Figure 3 and Figure 7 As shown, in some embodiments of the pull-rod insulated box 10, the limiting member 33 includes a buckle 331, a limiting hook 332 and a locking valve 333. The buckle 331 is detachably mounted on the box body 11, the limiting hook 332 is rotatably mounted on the buckle 331, and the locking valve 333 is slidably mounted on the buckle 331.

[0058] When the locking valve 333 slides to the locking position, it locks the relative position of the limit hook 332 and the buckle 331, so that the limit hook 332 hooks the fixed bracket 31; when the locking valve 333 slides away from the locking position, it unlocks the limit hook 332.

[0059] Understandably, the latch 331 is detachably mounted on the housing 11 to cooperate with the limit hook 332 and the locking valve 333 to fix the bracket 31. The shape and size of the limit hook 332 are designed so that when the bracket 31 is in use, the limit hook 332 can hook the bracket 31 to prevent it from swinging during movement. The locking valve 333 is slidably mounted on the latch 331. By sliding the locking valve 333 to the locked position, the relative position of the limit hook 332 and the latch 331 can be locked, thereby fixing the bracket 31 with the limit hook 332. Conversely, when the locking valve 333 slides away from the locked position, the limit hook 332 unlocks, and the bracket 31 can rotate freely.

[0060] like Figure 7 As shown, in some embodiments of the pull rod insulated box 10, the limiting member 33 further includes a rotating shaft 334, which is disposed on the buckle 331, and the limiting hook 332 is rotatably disposed on the rotating shaft 334.

[0061] Understandably, the pivot 334 is used to support the rotation of the limit hook 332. The dimensions of the pivot 334 should be configured to ensure smooth rotation of the limit hook 332 and good fit with the bracket 31.

[0062] like Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments of the pull rod insulated box 10, the outer wall of the box body 11 has two recessed relief grooves 112 at two opposite positions; the pull assembly 3 also includes two rollers 34, which are rotatably disposed in the two relief grooves 112 in a one-to-one correspondence.

[0063] Understandably, the clearance grooves 112 are positioned relative to each other on the outer side wall of the box 11 to accommodate the rollers 34, allowing the rollers 34 to rotate smoothly without interfering with other parts of the box 11. The two rollers 34 are respectively rotatably disposed in the two clearance grooves 112 to support the weight of the insulated box 10 and reduce friction during movement.

[0064] like Figure 3 and Figure 6 As shown, in some embodiments of the pull-rod insulated box 10, the insulation component 1 further includes two bottom pads 14, which are respectively disposed at the bottom of the box body 11.

[0065] Understandably, the two base pads 14 are used to increase the friction between the insulated box 10 and the ground, preventing the insulated box 10 from sliding when placed. The base pads 14 also act as a cushion, reducing the wear that may occur when the box body 11 is in direct contact with the ground.

[0066] like Figure 1 , Figure 2 and Figure 6 As shown, in some embodiments of the pull-rod insulated box 10, the pull-rod insulated box 10 further includes a buckle assembly 4, which includes two buckles 41 and two buckle slots 42;

[0067] Both buckles 41 are provided on the cover 12, and both buckle slots are provided on the box 11. The two buckles 41 correspond one-to-one with the two buckle slots 42, and the buckles 41 can be detachably locked into the buckle slots 42.

[0068] Understandably, the buckle 41 is provided on the cover 12 to cooperate with the buckle groove 42 on the box 11 to ensure the sealing and fixation between the cover 12 and the box 11.

[0069] Snap-in slot 42: Snap-in slot 42 is provided on the box body 11 and corresponds one-to-one with snap-in 41. When the cover 12 is closed, snap-in 41 can be snapped into the corresponding snap-in slot 42 to realize the fixed connection between the cover 12 and the box body 11.

[0070] like Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments of the pull rod insulated box 10, the bracket 31 includes two support arms 312, two crossbeams 313 and two grips 314;

[0071] Two support arms are symmetrically arranged on the handle, two crossbeams 313 are both arranged between the two support arms 312, both support arms are rotatably arranged on the connecting shaft 22, and two grip sleeves 314 are respectively arranged at both ends of the handle.

[0072] Understandably, the handle is located at the top of the bracket 31 for the user to grip when pulling the insulated box 10. Two support arms 312 are symmetrically arranged on the handle to support the weight of the insulated box 10. Two crossbeams 313 are both located between the two support arms 312 to connect the two support arms 312 and enhance the stability of the bracket 31. Two grip sleeves 314 are respectively located at both ends of the handle to provide the user with a better grip experience.

[0073] The following are the beneficial effects of implementing this utility model:

[0074] This utility model relates to a pull-rod insulated box. By setting up connecting components, the overall structural stability of the pull-rod insulated box is enhanced, and the risk of breakage of the connecting parts due to frequent use of the pull rod is reduced, thereby significantly improving the durability and service life of the product.

[0075] Specifically, by using a connecting assembly consisting of a fixed cylinder, a connecting shaft, and a positioning block, a stable connection of the pull rod is ensured during use, allowing the force to be applied to the housing with a larger contact area, greatly increasing the connection strength between the pull rod and the housing, and avoiding problems such as loosening or breakage.

[0076] The bracket in the pulling assembly can rotate flexibly within the connecting slot. When not in use, the bracket can be attached to the box to save space, and when in use, it can be quickly locked by the limiting component to ensure stability during the pulling process.

[0077] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the modules in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.

[0078] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A pull-rod insulated box, characterized in that, include: A thermal insulation component, comprising a housing and a cover, wherein the cover is detachably mounted on the housing and a connecting groove is provided on the side wall of the housing; A connecting assembly includes a fixed cylinder, a connecting shaft, and a positioning block. The fixed cylinders are all fixedly disposed on the side wall of the housing. The connecting shaft passes through the connecting groove and each of the fixed cylinders. The positioning block is disposed in the connecting groove. and A pulling assembly, comprising a bracket, a handle, and a limiting member, wherein the bracket is located within the connecting groove and is rotatably mounted on the connecting shaft, the handle is mounted on the bracket, and the limiting member is mounted on the housing; The bracket can rotate around the connecting shaft, so that the bracket can fit against the box or be fixed to the limiting member, thereby fixing the relative position of the bracket and the box.

2. The pull-rod insulated box according to claim 1, characterized in that, The connecting assembly includes two positioning blocks, and two connecting grooves are formed on the side wall of the housing. The two positioning blocks are respectively disposed at one end of each connecting groove, and the other end of the connecting groove is exposed on the outside of the housing for the bracket to be installed.

3. The pull-rod insulated box according to claim 1, characterized in that, The insulation component also includes an inner box, which is disposed inside the box body. The top of the inner box is provided with a mounting flange, which covers the top of the box body. The cover is rotatably connected to the inner box.

4. The pull-rod insulated box according to claim 3, characterized in that, The fixing cylinder includes an edge cylinder and a center cylinder. The edge cylinder and the center cylinder are respectively sleeved on the connecting shaft. The edge cylinder is clamped between the mounting flange and the inner wall of the box. The center cylinder is located between the two connecting grooves.

5. The pull-rod insulated box according to claim 1, characterized in that, The limiting component includes a buckle, a limiting hook, and a locking valve. The buckle is detachably mounted on the housing, the limiting hook is rotatably mounted on the buckle, and the locking valve is slidably mounted on the buckle. When the locking valve slides to the locking position, it locks the relative position of the limiting hook and the buckle, so that the limiting hook holds and fixes the bracket; when the locking valve slides away from the locking position, it unlocks the limiting hook.

6. The pull-rod insulated box according to claim 5, characterized in that, The limiting component also includes a pivot shaft, which is disposed on the buckle, and the limiting hook is rotatably disposed on the pivot shaft.

7. The pull-rod insulated box according to claim 1, characterized in that, The outer wall of the box has two recessed grooves at two opposite positions; The pulling assembly also includes two rollers, which are rotatably disposed in the two clearance slots in a one-to-one correspondence.

8. The pull-rod insulated box according to claim 1 or 7, characterized in that, The insulation component also includes two bottom pads, which are respectively disposed at the bottom of the box.

9. The pull-rod insulated box according to claim 1, characterized in that, The pull-rod insulated box also includes a buckle assembly, which includes two buckles and two buckle slots; Both buckles are provided on the cover, and both buckle slots are provided on the box. The two buckles and the two buckle slots correspond one-to-one, and the buckles can be detachably locked into the buckle slots.

10. The pull-rod insulated box according to claim 1, characterized in that, The bracket includes two support arms, two crossbeams, and two grips; Two support arms are symmetrically arranged on the handle, two crossbeams are arranged between the two support arms, two support arms are rotatably arranged on the connecting shaft, and two grip sleeves are respectively arranged at both ends of the handle.

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