A connection structure between the floor and the rear door sill of a refrigerated truck compartment

Abstract

This utility model discloses a connection structure between the floor and rear door sill of a refrigerated truck compartment, including a refrigerated truck compartment floor and a rear door sill. The rear door sill is fitted onto the outside of the refrigerated truck compartment floor. A wooden beam is provided inside the refrigerated truck compartment floor. The rear door sill wraps around and is secured to the wooden beam at the end of the refrigerated truck compartment floor and the outside of the floor. A reinforcing plate is secured to the upper edge of the wooden beam at the end of the refrigerated truck compartment floor. A heat insulation strip is laid on the upper side of the reinforcing plate. A heat insulation strip is also wrapped around the upper side of the rear door sill. This utility model belongs to the field of refrigerated truck compartment manufacturing technology. Specifically, it involves installing a heat insulation strip at the connection between the refrigerated truck compartment floor and the rear door sill. To increase the connection and tighten the fit, an L-shaped reinforcing plate is installed for better connection with the rear door sill. By reducing the thermal conductivity coefficient, it reduces heat exchange between the inside and outside of the refrigerated truck compartment.

Description

Technical Field

[0001] This utility model belongs to the field of refrigerated truck body manufacturing technology, specifically referring to a connection structure between the floor and the rear door sill of a refrigerated truck body. Background Technology

[0002] Refrigerated trucks are enclosed vans used to maintain the temperature of frozen or fresh goods. They are specialized refrigerated transport vehicles equipped with refrigeration units and polyurethane insulated compartments. Refrigerated trucks can be classified according to manufacturer, chassis load capacity, and compartment type. They are commonly used for transporting frozen foods (frozen food trucks), dairy products (dairy trucks), fruits and vegetables (fresh produce trucks), vaccines and pharmaceuticals (vaccine trucks), etc.

[0003] Most existing stainless steel rear door frames for refrigerated trucks adopt a straight plate design without any reinforcement structure. Over time, due to external forces, the rear door frames will gradually become loose, deform, and crack. This not only affects the appearance of the product but can also prevent the rear door from opening and closing properly, shortening the service life of the truck. At the same time, the cold air inside the truck will exchange heat with the outside through the door sill connection, thereby increasing energy consumption and reducing the cold insulation effect. Utility Model Content

[0004] The technical problem to be solved by this utility model is:

[0005] The existing refrigerated truck floor and rear door sill connection structure is simple, which can easily reduce the cold insulation effect and cause damage.

[0006] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: a connection structure between the floor of a refrigerated truck compartment and the rear door sill, including a refrigerated truck compartment floor and a rear door sill. The rear door sill is fitted onto the outside of the refrigerated truck compartment floor. A wooden beam is provided inside the refrigerated truck compartment floor. The rear door sill wraps around and is secured to the wooden beam at the end of the refrigerated truck compartment floor and the outside of the refrigerated truck compartment floor. A reinforcing plate is secured to the upper edge of the wooden beam at the end of the refrigerated truck compartment floor. A heat insulation strip is laid on the upper side of the reinforcing plate. The heat insulation strip is wrapped around the upper side of the rear door sill.

[0007] Furthermore, the reinforcing plate is L-shaped.

[0008] Furthermore, the heat insulation strip is made of PE material.

[0009] Furthermore, the refrigerated truck bed includes a fiberglass plate, on which wooden beams are laid at intervals, with insulation material filling the spaces between the wooden beams, and a smooth aluminum plate is laid at the connection between the insulation strip and the wooden beams for transition.

[0010] Furthermore, aluminum profile ventilation slots are laid on the insulation material and the aluminum plate, and fastened with self-tapping screws.

[0011] Furthermore, the aluminum profile ventilation slot is made of aluminum profile.

[0012] Furthermore, the rear door sill is made of stainless steel.

[0013] Furthermore, the reinforcing plate is made of thick galvanized steel.

[0014] The beneficial effects of this utility model by adopting the above structure are as follows:

[0015] A heat insulation strip is installed at the connection between the floor of the refrigerated truck compartment and the rear door sill. An L-shaped reinforcing plate is installed to increase the tightness of the connection and facilitate a better connection with the rear door sill. This reduces the heat exchange between the inside and outside of the refrigerated truck compartment by lowering the thermal conductivity coefficient. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of a connection structure between the floor of a refrigerated truck compartment and the rear door sill proposed in this utility model.

[0017] Figure 2 for Figure 1 A magnified view of part A in the middle.

[0018] Among them, refrigerated truck compartment floor 1, rear door sill 2, wooden beam 3, reinforcing plate 4, heat insulation strip 5, fiberglass plate 6, thermal insulation material 7, bare aluminum plate 8, aluminum profile ventilation slot 9.

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-2 As shown, the present invention proposes a connection structure between the floor of a refrigerated truck compartment and the rear door sill, including a refrigerated truck compartment floor 1 and a rear door sill 2. The rear door sill 2 is fitted on the outside of the refrigerated truck compartment floor 1. A wooden beam 3 is provided inside the refrigerated truck compartment floor 1. The rear door sill 2 is wrapped around and secured to the wooden beam 3 at the end of the refrigerated truck compartment floor 1 and the outside of the refrigerated truck compartment floor 1. A reinforcing plate 4 is secured to the upper edge of the wooden beam 3 at the end of the refrigerated truck compartment floor 1. A heat insulation strip 5 is laid on the upper side of the reinforcing plate 4. The heat insulation strip 5 is wrapped around the upper side of the rear door sill 2.

[0022] Based on traditional processes, a heat insulation strip 5 is installed at the connection between the refrigerated truck floor 1 and the rear door sill 2. To increase the connection and tighten the connection, an L-shaped reinforcing plate 4 is installed to facilitate a better connection with the rear door sill 2. The rear door sill 2 is made of 304 stainless steel.

[0023] This two-segment overlap provides excellent insulation and prevents heat conduction between the inside and outside.

[0024] The reinforcing plate 4 is L-shaped and is made of 1.0mm thick galvanized sheet.

[0025] The thermal insulation strip 5 is made of PE material.

[0026] The connection between the refrigerated truck floor 1 and the rear door sill 2 optimizes the existing technology of thermal break insulation in related fields. It is mainly achieved through the thermal insulation strip 5 and the reinforcing plate 4. The PE material of the thermal insulation strip 5 reduces the heat transfer coefficient, reduces the heat exchange between the inside and outside of the refrigerated truck compartment, significantly improves the insulation performance at the connection between the refrigerated truck floor 1 and the rear door sill 2, reduces heat loss, reduces costs, reduces heat transfer, and reduces refrigeration energy consumption. The PE material thermal insulation strip achieves multiple functions of heat insulation, energy saving, stability and aesthetics through material characteristics and process design.

[0027] During installation, the refrigerated truck compartment floor 1 includes a fiberglass plate 6, wooden beams 3 are laid on the fiberglass plate 6 at intervals, and insulation material 7 is filled between the wooden beams 3. A reinforcing plate 4 is installed at the corner of the wooden beam 3 at the end, and a heat insulation strip 5 is laid on the upper side of the reinforcing plate 4. A smooth aluminum plate 8 is laid at the connection between the heat insulation strip 5 and the wooden beam 3 for transition. Finally, the rear door sill 2 is fixed to the fiberglass plate 6 and the heat insulation strip 5 to achieve fixation.

[0028] To ensure the refrigeration effect, aluminum profile ventilation slots 9 are laid on the insulation material 7 and the aluminum plate 8 to form a connection. The aluminum profile ventilation slots 9 are made of 606 aluminum profiles and are fastened with galvanized pan head self-tapping screws of model 6.5x35.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A connection structure between the floor of a refrigerated truck compartment and the rear door sill, comprising a refrigerated truck compartment floor (1) and a rear door sill (2), wherein the rear door sill (2) is fitted onto the outside of the refrigerated truck compartment floor (1), and a wooden beam (3) is provided inside the refrigerated truck compartment floor (1), wherein the rear door sill (2) wraps around and is secured to the wooden beam (3) at the end of the refrigerated truck compartment floor (1) and the outside of the refrigerated truck compartment floor (1), characterized in that: A reinforcing plate (4) is installed on the upper edge of the wooden beam (3) at the end of the refrigerated truck floor (1), and a heat insulation strip (5) is laid on the upper side of the reinforcing plate (4). The heat insulation strip (5) is wrapped around the upper side of the rear door sill (2).

2. The refrigerated vehicle compartment floor and rear frame sill connection structure of claim 1, wherein: The reinforcing plate (4) is L-shaped.

3. The refrigerated vehicle compartment floor and rear frame sill connection structure of claim 2, wherein: The heat insulation strip (5) is made of PE material.

4. The refrigerated vehicle compartment floor and rear frame sill connection structure of claim 3, wherein: The refrigerated truck floor (1) includes a fiberglass plate (6), on which wooden beams (3) are laid at intervals, and the spaces between the wooden beams (3) are filled with insulation material (7). A light aluminum plate (8) is laid at the connection between the heat insulation strip (5) and the wooden beams (3) for transition.

5. The refrigerated transport vehicle floor and rear frame threshold connection structure of claim 4, wherein: Aluminum profile ventilation slots (9) are laid on the insulation material (7) and the aluminum plate (8) and fastened with self-tapping screws.

6. The refrigerated vehicle compartment floor and rear frame sill connection structure of claim 5, wherein: The aluminum profile ventilation slot (9) is made of 606 aluminum profile.

7. The refrigerated vehicle compartment floor and rear frame sill connection structure of claim 1 or 5, wherein: The rear door sill (2) is made of 304 stainless steel.

8. The refrigerated vehicle compartment floor and rear frame sill connection structure of claim 1 or 5, wherein: The reinforcing plate (4) is made of 1.0mm thick galvanized sheet.

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