Metal surface hard polyurethane sandwich panel convenient to splice

The design of plug-in connectors and locking components solves the problem of low splicing efficiency of rigid polyurethane sandwich panels with metal surfaces, enabling a fast and stable splicing process and improving overall practicality.

CN223937358UActive Publication Date: 2026-02-24KRUGER (JIANGSU) COLD CHAIN TECH CO LTD
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Patent Information

Application Number
CN202520219243.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2026-02-24
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

Existing rigid polyurethane sandwich panels with metal surfaces require bolts for fixing during the splicing process, resulting in low splicing efficiency and limited practicality, especially in large-scale splicing operations.

Method used

It adopts a plug-in connection, using a plug rod and a fixed sleeve in conjunction with a snap-fit ​​assembly to achieve biaxial locking, and further reinforces the connection with a locking assembly, simplifying the operation process and preventing bolt rotation.

Benefits of technology

It improves splicing efficiency and practicality, simplifies operation steps, ensures connection stability, and prevents boards from coming loose during use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a metal-surface rigid polyurethane sandwich panel convenient to splice, which belongs to the field of metal-surface rigid polyurethane sandwich panels and comprises a first panel body and a second panel body, a fixing sleeve is fixedly mounted on the surface of the first panel body, and a metal-surface rigid polyurethane sandwich panel is mounted on the second panel body. A right-angle plate is fixedly mounted on the surface of the second plate body, an inserting rod is fixedly mounted at one end of the right-angle plate, a mounting pipe is fixedly mounted in the inserting rod, the left side and the right side of the mounting pipe are movably sleeved with buckle assemblies, a lifting groove is formed in the side face of the fixing sleeve, and a locking assembly is movably sleeved with the lifting groove; the upper end and the lower end of the curved convex plate are both provided with the clamping grooves, in the splicing process, locking of a connecting piece can be directly achieved through insertion, finally biaxial locking can be conducted through the fixing rod, stable connection is guaranteed, bolt rotation is not needed, and the splicing efficiency and practicability of the whole plate are improved.
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Description

Technical Field

[0001] This utility model relates to the field of rigid polyurethane sandwich panels with metal surfaces, and more specifically, to a rigid polyurethane sandwich panel with metal surfaces that is easy to splice. Background Technology

[0002] Metal-faced polyurethane sandwich panels refer to panels with two thin metal sheets on the top and bottom and rigid polyurethane as the core material. In the use of metal-faced polyurethane sandwich panels, it is often necessary to splice the two panels together. Patent publication number CN219773362U discloses a plug-in type metal-faced rigid polyurethane sandwich panel, including a first sandwich panel body. The first sandwich panel body includes a polyurethane core board and a metal panel. The top and bottom of the polyurethane core board are fixedly connected to the metal panel. A second sandwich panel body is movably connected to the right side of the first sandwich panel body. The first and second sandwich panel bodies are made of the same material. A first fixing block is fixedly connected to the top and bottom of the right side of the front of the first sandwich panel body. This utility model solves the problem of the inconvenience of splicing common rigid polyurethane sandwich panels with metal surfaces by having a first sandwich panel body, a second sandwich panel body, a first fixing block, an insertion slot, a second fixing block, a connecting seat, an insertion rod, a slot, and a limiting mechanism work together. It can conveniently splice the first sandwich panel body and the second sandwich panel body together. The splicing steps are simple and easy to operate, which brings great convenience to the user.

[0003] In existing technologies, during the splicing of plates, bolts are used to fix the connectors laterally to ensure stability. However, when splicing a large number of plates, more time is spent tightening the bolts. Therefore, the splicing efficiency of this splicing mechanism is limited when performing large-scale splicing operations, thus reducing the overall practicality of the device. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a metal-faced rigid polyurethane sandwich panel that is easy to splice. During the splicing process, the connectors can be locked directly by plugging in, and finally, a fixing rod can be used for biaxial locking to ensure stable connection. No bolt rotation is required, which improves the splicing efficiency and practicality of the overall panel.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A metal-faced rigid polyurethane sandwich panel that is easy to assemble includes a first panel and a second panel. A fixing sleeve is fixedly installed on the surface of the first panel, and a right-angle plate is fixedly installed on the surface of the second panel. A rod is fixedly installed at one end of the right-angle plate, and an installation tube is fixedly installed inside the rod. Buckle assemblies are movably sleeved on both sides of the installation tube. A lifting groove is opened on the side of the fixing sleeve, and a locking assembly is movably sleeved inside the lifting groove.

[0009] Furthermore, the buckle assembly includes a curved convex plate, with slots provided at both the upper and lower ends of the curved convex plate. Limiting strips are integrally formed on the inner sides of both the upper and lower ends of the curved convex plate. A convex rod is fixedly installed on the inner side of the curved convex plate, and a spring is movably sleeved on the surface of the convex rod.

[0010] Furthermore, a limiting groove is formed on the inner side of the insertion rod, and the shape of the limiting groove is adapted to the shape of the limiting strip.

[0011] Furthermore, the mounting tube has a sliding groove inside, the shape of which matches the shape of the convex rod, and one inner wall of the sliding groove is fixedly connected to the outer end of the spring.

[0012] Furthermore, the locking assembly includes a connecting plate, a locking tooth is fixedly installed at the bottom end of the connecting plate, a sleeve rod is fixedly installed at the top end of the connecting plate, and a spring is movably sleeved on the surface of the sleeve rod.

[0013] Furthermore, there are two connecting plates. One end of the connecting plate is rotatably mounted with a fixed rotating rod, and the bottom end of the fixed rotating rod is fixedly mounted with an I-shaped clamping block. The shape of the I-shaped clamping block is adapted to the shape of the port of the other connecting plate.

[0014] Furthermore, the edge of the locking tooth is set with a rounded corner structure, the locking tooth is movably sleeved inside the lifting groove, and the upper and lower ends of the second spring are respectively fixedly connected to the surface of the connecting plate and the inner wall of the lifting groove.

[0015] Furthermore, the length of the fixed rotating rod is adapted to the height of the curved convex plate, the size of the locking tooth is adapted to the size of the slot, and the material of the I-shaped locking block is set to plastic.

[0016] 3. Beneficial effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] (1) This solution utilizes the insertion rod and the fixing sleeve to automatically push out the buckle assembly when they are embedded in each other, and together with the right angle plate and the fixing sleeve, achieves biaxial locking, automatically completes splicing and fixing, greatly shortens the splicing time of the board, and is simple to operate, improving the practicality of the board.

[0019] (2) This solution uses a locking component to further lock the buckle component from the outside, thereby reinforcing the buckle component and preventing the board from vibrating during use and causing it to come off, which would affect the splicing. In addition, this step only requires rotating the fixed rotating rod during the splicing process, which ensures the convenience of operation and further improves the overall practicality of the device. Attached Figure Description

[0020] Figure 1 This is a front view of the overall structure of this utility model.

[0021] Figure 2 In this utility model Figure 1 Schematic diagram of the structure at point A in the middle;

[0022] Figure 3 In this utility model Figure 2 Schematic diagram of the structure at point B;

[0023] Figure 4 This is a schematic diagram of the connection structure between the mounting tube and the snap-fit ​​assembly in this utility model;

[0024] Figure 5 This is a schematic diagram of the buckle assembly structure in this utility model;

[0025] Figure 6 This is a schematic diagram of the locking component structure in this utility model.

[0026] Explanation of the labels in the diagram:

[0027] 1. First plate; 2. Second plate; 3. Fixing sleeve; 4. Right angle plate; 5. Insert rod; 6. Mounting tube; 7. Buckle assembly; 8. Locking assembly; 301. Lifting groove; 501. Limiting groove; 701. Curved convex plate; 702. Slot; 703. Limiting strip; 704. Convex rod; 705. Spring one; 801. Connecting plate; 802. Locking tooth; 803. Sleeve rod; 804. Spring two; 805. Fixing rotating rod; 806. I-shaped locking block. Detailed Implementation

[0028] 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.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Example 1:

[0032] Please see Figure 1-6 A metal-faced rigid polyurethane sandwich panel that is easy to splice includes a first panel 1 and a second panel 2. A fixing sleeve 3 is fixedly installed on the surface of the first panel 1, and a right-angle plate 4 is fixedly installed on the surface of the second panel 2. A plug rod 5 is fixedly installed at one end of the right-angle plate 4, and an installation tube 6 is fixedly installed inside the plug rod 5. Buckle assemblies 7 are movably sleeved on both sides of the installation tube 6. A lifting groove 301 is opened on the side of the fixing sleeve 3, and a locking assembly 8 is movably sleeved inside the lifting groove 301.

[0033] It should be noted that the first plate 1 and the second plate 2 in this utility model are both existing mature technologies as described in the prior art. Similar to the prior art, the position and number of connectors between adjacent plates are standardized. Figure 1 For example, the left side of the second plate 2 has the same structure as the left side of the first plate 1. This setting method belongs to the prior art, so it will not be described in detail in this utility model.

[0034] The buckle assembly 7 includes a curved convex plate 701, with slots 702 at both the upper and lower ends of the curved convex plate 701. Limiting strips 703 are integrally formed on the inner sides of both the upper and lower ends of the curved convex plate 701. A convex rod 704 is fixedly installed on the inner side of the curved convex plate 701. A spring 705 is movably sleeved on the surface of the convex rod 704. A limiting groove 501 is opened on the inner side of the insertion rod 5. The shape of the limiting groove 501 matches the shape of the limiting strip 703. A sliding groove is opened inside the mounting tube 6. The shape of the sliding groove matches the shape of the convex rod 704. One inner wall of the sliding groove is fixedly connected to the outer end of the spring 705.

[0035] Specifically, the structure of the convex rod 704, in conjunction with the limiting strip 703, slides inside the limiting groove 501, which ensures that the overall movement has a limiting function. This protects the service life of the spring 705 and prevents excessive stretching and compression, while also ensuring the movement trajectory of the curved convex plate 701. This achieves the function of being stationary and fixed in all directions except for uniaxial movement, preventing shaking from affecting the overall locking mechanism.

[0036] The locking assembly 8 includes a connecting plate 801. A locking tooth 802 is fixedly installed at the bottom end of the connecting plate 801, and a sleeve rod 803 is fixedly installed at the top end of the connecting plate 801. A spring 804 is movably sleeved on the surface of the sleeve rod 803. There are two connecting plates 801. A fixed rotating rod 805 is rotatably installed at one end of one connecting plate 801. An I-shaped locking block 806 is fixedly installed at the bottom end of the fixed rotating rod 805. The shape of the I-shaped locking block 806 is the same as that of the other connecting plate 801. The shape of the port of the connecting plate 801 is adapted to the shape of the locking tooth 802. The edge of the locking tooth 802 is set with a rounded corner structure. The locking tooth 802 is movably sleeved inside the lifting groove 301. The upper and lower ends of the spring 804 are respectively fixedly connected to the surface of the connecting plate 801 and the inner wall of the lifting groove 301. The length of the fixed rotating rod 805 is adapted to the height of the curved convex plate 701. The size of the locking tooth 802 is adapted to the size of the slot 702. The material of the I-shaped card block 806 is plastic.

[0037] Specifically, the rounded corners of the locking teeth 802 allow the curved convex plate 701 to automatically push out the locking teeth 802 from both the top and bottom sides when it pops out, without affecting the normal pop-out of the curved convex plate 701. This allows for reset and locking of the corresponding slot 702. Secondly, the fixed rotating rod 805 and the I-shaped locking block 806 ensure that the relative distance between the locking teeth 802 is fixed, preventing them from moving up and down and detaching from the slot 702. This also facilitates the connection and fixation of the I-shaped locking block 806 with the corresponding port of the curved convex plate 701, making it convenient and practical. Finally, the plastic material of the I-shaped locking block 806 has a certain degree of elasticity, which changes the surface curvature and prevents mutual repulsion and inability to insert during rotation.

[0038] The working principle of this utility model is as follows: First, the two buckle components 7 are pressed towards the inside of the insertion rod 5 so that they enter the interior of the fixing sleeve 3 together with the insertion rod 5. Then, they pop out from the hollowed-out parts on the left and right sides of the fixing sleeve 3. After the curved convex plate 701 pops out from the side of the insertion rod 5, the side of its top end drives the locking tooth 802 to move, so that the connecting plate 801 drives the second spring 804 to passively retract. When the locking tooth 802 and the slot 702 overlap, the second spring 804 drives the locking tooth 802 to reset, so that it enters the interior of the slot 702, thus completing the overall locking of the buckle component 7. Then, the I-shaped card block 806 at the bottom of the fixing rotating rod 805 is transferred to the outer end of the connecting plate 801 to complete the insertion and fixing.

[0039] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A metal-faced rigid polyurethane sandwich panel that is easy to assemble, comprising a first panel (1) and a second panel (2), characterized in that: A fixing sleeve (3) is fixedly installed on the surface of the first plate (1), and a right angle plate (4) is fixedly installed on the surface of the second plate (2). A plug rod (5) is fixedly installed at one end of the right angle plate (4). An installation tube (6) is fixedly installed inside the plug rod (5). Buckle components (7) are movably sleeved on both the left and right sides of the installation tube (6). A lifting groove (301) is opened on the side of the fixing sleeve (3). A locking component (8) is movably sleeved inside the lifting groove (301).

2. The easily assembled rigid polyurethane sandwich panel with a metal surface according to claim 1, characterized in that: The buckle assembly (7) includes a curved convex plate (701), and both the upper and lower ends of the curved convex plate (701) are provided with slots (702). Limiting strips (703) are integrally formed on the inner sides of both the upper and lower ends of the curved convex plate (701). A convex rod (704) is fixedly installed on the inner side of the curved convex plate (701), and a spring (705) is movably sleeved on the surface of the convex rod (704).

3. The easily assembled rigid polyurethane sandwich panel with a metal surface according to claim 1, characterized in that: A limiting groove (501) is provided on the inner side of the insertion rod (5), and the shape of the limiting groove (501) is adapted to the shape of the limiting strip (703).

4. The easily assembled rigid polyurethane sandwich panel with a metal surface according to claim 1, characterized in that: The mounting tube (6) has a sliding groove inside, the shape of which is adapted to the shape of the convex rod (704), and one inner wall of the sliding groove is fixedly connected to the outer end of the spring (705).

5. A metal-faced rigid polyurethane sandwich panel for easy splicing according to claim 1, characterized in that: The locking assembly (8) includes a connecting plate (801), a locking tooth (802) is fixedly installed at the bottom end of the connecting plate (801), a sleeve rod (803) is fixedly installed at the top end of the connecting plate (801), and a spring (804) is movably sleeved on the surface of the sleeve rod (803).

6. A metal-faced rigid polyurethane sandwich panel for easy splicing according to claim 5, characterized in that: There are two connecting plates (801). One end of the connecting plate (801) is rotatably mounted with a fixed rotating rod (805). The bottom end of the fixed rotating rod (805) is fixedly mounted with an I-shaped clamp (806). The shape of the I-shaped clamp (806) is adapted to the shape of the port of the other connecting plate (801).

7. A metal-faced rigid polyurethane sandwich panel for easy splicing according to claim 5, characterized in that: The locking tooth (802) has a rounded edge and is movably sleeved inside the lifting groove (301). The upper and lower ends of the spring (804) are respectively fixedly connected to the surface of the connecting plate (801) and the inner wall of the lifting groove (301).

8. A metal-faced rigid polyurethane sandwich panel for easy splicing according to claim 6, characterized in that: The length of the fixed rotating rod (805) is adapted to the height of the curved convex plate (701), the size of the locking tooth (802) is adapted to the size of the slot (702), and the material of the I-shaped card block (806) is plastic.

Citation Information

Patent Citations

  • Plug-in type metal surface rigid polyurethane sandwich panel

    CN219773362U