Composite paperboard with compression resistance and shock absorption functions

Abstract

The utility model discloses a composite paperboard with compression resistance and shock absorption functions, which relates to the technical field of composite paperboards and comprises an upper surface layer and a lower surface layer, a reinforcing layer is fixedly arranged between the upper surface layer and the lower surface layer, and the reinforcing layer is wavy and is provided with a plurality of bent reinforcing surfaces. A plurality of buffer pipes arranged at intervals are inserted between the reinforcing layer and the upper surface layer and between the reinforcing layer and the lower surface layer, two symmetrically-arranged positioning rods are arranged on the outer walls of the buffer pipes in a sliding and penetrating mode, the positioning rods are inserted into the reinforcing layer, and pushing and inserting mechanisms used for driving the positioning rods to move longitudinally are arranged between the ends of the buffer pipes and the positioning rods. The upper surface layer, the lower surface layer, the reinforcing layer and the buffer pipes provided by the utility model can effectively buffer and counteract the impact on the paperboard through the buffer pipes, so that the composite paperboard can be stably used for a long time, and the use strength of the paperboard is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite cardboard, and particularly relates to a composite cardboard with compressive and shock-absorbing functions. Background Art

[0002] Composite cardboard is a kind of cardboard with a certain strength made by pasting and compounding packaging paper, and then processed, formed and cut. It has high strength and pressure resistance.

[0003] After retrieval, the patent document with the publication number of CN219467227U discloses a composite cardboard. The upper structure of the outer layer device of this cardboard uses degradable and recyclable materials, which is convenient for recycling and secondary utilization after use, reducing resource waste. There is a waterproof coating installed above, which prevents the cardboard from being affected by rainy weather during transportation or use, resulting in the surface of the cardboard getting wet and soft and unable to be recycled. There is a side mounting plate installed on the side, and the side mounting plate seals and waterproofs the outside to prevent water vapor from entering the inside of the cardboard and causing internal softening.

[0004] However, when the above cardboard is in use, its own strength is weak, and it cannot effectively resist compression and buffer the impact, resulting in the cardboard being easily damaged by impact, reducing the use effect of the composite cardboard. Summary of the Utility Model

[0005] In view of the problems existing in the above-mentioned existing composite cardboard with compressive and shock-absorbing functions, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a composite cardboard with compressive and shock-absorbing functions, which solves the problem that the existing composite cardboard cannot effectively resist compression and buffer the impact, resulting in the cardboard being easily damaged by impact.

[0007] In order to achieve the above purpose, the present utility model provides the following technical solutions:

[0008] A composite cardboard with compressive and shock-absorbing functions, including an upper surface layer and a lower surface layer. A reinforcing layer is fixedly arranged between the upper surface layer and the lower surface layer. The reinforcing layer is arranged in a wavy shape and is provided with a plurality of curved reinforcing surfaces;

[0009] A plurality of buffer tubes are inserted at intervals between the reinforcing layer and the upper surface layer and the lower surface layer. Two symmetrically arranged positioning rods are slidably penetrated through the outer wall of the buffer tube, and the positioning rods are inserted into the reinforcing layer;

[0010] A pushing and inserting mechanism for driving the longitudinal movement of the positioning rod is arranged between the end of the buffer tube and the positioning rod.

[0011] Preferably, the pushing and inserting mechanism includes a push rod. An internal thread is provided on the inner wall of the buffer tube. An external thread is provided on the outer wall of the push rod, and the push rod is threadedly arranged inside the buffer tube. A push block is fixedly provided at the end of the push rod. The push block is arranged in cooperation with the positioning rod. A spring is sleeved on the rod wall of the positioning rod, and both ends of the spring are fixedly connected to the positioning rod and the inner wall of the buffer tube respectively.

[0012] Preferably, a positioning hole for inserting and matching the positioning rod is provided inside the reinforcing layer.

[0013] Preferably, a torsion plate is fixedly provided at one end of the push rod away from the buffer tube, and a pushing inclined surface is provided at one end of the positioning rod close to the push block.

[0014] Furthermore, a guiding annular groove is provided on the outer wall of the push rod, and an annular plate is fixedly provided on the inner wall of the buffer tube. The annular plate is rotatably arranged inside the guiding annular groove.

[0015] Preferably, the buffer tube is a rubber buffer tube.

[0016] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0017] 1. In the present utility model, through the provided upper surface layer, lower surface layer, reinforcing layer and buffer tube, the impact received by the cardboard can be effectively buffered and offset by the buffer tube, so that the composite cardboard can be stably used for a long time, and the use strength of the cardboard is improved.

[0018] 2. In the present utility model, through the provided reinforcing layer, buffer tube, positioning rod, positioning hole and pushing and inserting mechanism, the installation position of the buffer tube can be determined, and at the same time, the buffer tube can be quickly taken out for repeated use, further improving the use effect of the composite cardboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is the Figure 1 enlarged schematic view of part A of the present utility model;

[0022] Figure 3 is the internal cross-sectional view of the buffer tube of the present utility model;

[0023] Figure 4 This is a three-dimensional structural schematic diagram of the buffer tube of the present utility model.

[0024] Explanation of reference numerals:

[0025] 1. Upper surface layer; 2. Lower surface layer; 3. Reinforcement layer; 4. Buffer tube; 5. Positioning rod; 6. Push rod; 7. Push block; 8. Spring; 9. Torsion plate; 10. Guide annular groove; 11. Annular plate. Specific embodiments

[0026] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] An embodiment of the present utility model discloses a composite cardboard with compressive and shock-absorbing functions.

[0028] Embodiment 1

[0029] The present utility model provides a composite cardboard with compressive and shock-absorbing functions as shown in Figures 1-4 which includes an upper surface layer 1 and a lower surface layer 2. A reinforcement layer 3 is fixedly arranged between the upper surface layer 1 and the lower surface layer 2. The reinforcement layer 3 is arranged in a wavy shape and is provided with a plurality of curved reinforcement surfaces;

[0030] A plurality of buffer tubes 4 arranged at intervals are inserted between the reinforcement layer 3, the upper surface layer 1 and the lower surface layer 2. The buffer tubes 4 are rubber buffer tubes. Two symmetrically arranged positioning rods 5 are slidably inserted through the outer wall of the buffer tubes 4. The positioning rods 5 are inserted into the reinforcement layer 3. Positioning holes for fitting the insertion of the positioning rods 5 are formed inside the reinforcement layer 3.

[0031] During the preparation of the cardboard, the reinforcement layer 3 is bonded between the upper surface layer 1 and the lower surface layer 2 to complete the preliminary forming of the composite cardboard. Subsequently, a plurality of buffer tubes 4 are inserted between the plurality of curved reinforcement surfaces of the reinforcement layer 3 to effectively resist and support the cardboard. The position of the buffer tubes 4 is determined by the insertion of the positioning rods 5 and the positioning holes inside the reinforcement layer 3. At this time, when the cardboard is squeezed or impacted, the buffer tubes 4 cooperate with the reinforcement layer 3 to effectively buffer the extrusion. At the same time, under the action of the material of the buffer tubes 4 themselves, the buffer tubes 4 can quickly rebound after extrusion and enable the reinforcement layer 3 to return to its original position, so that the composite cardboard body can have strong resilience and compressive ability.

[0032] Embodiment 2

[0033] On the basis of Embodiment 1, Embodiment 2 is for quickly determining the position of the buffer tubes 4, and at the same time facilitating the quick disassembly, assembly and multiple use of the buffer tubes 4, as shown in Figures 2-3As shown, a pushing and plugging mechanism for driving the positioning rod 5 to move longitudinally is provided between the end of the buffer tube 4 and the positioning rod 5, and the pushing and plugging mechanism includes a push rod 6, the inner wall of the buffer tube 4 is provided with an internal thread, the outer wall of the push rod 6 is provided with an external thread, and is threadedly arranged inside the buffer tube 4, a push block 7 is fixedly arranged at the end of the push rod 6, the push block 7 is matched with the positioning rod 5, a spring 8 is sleeved on the rod wall of the positioning rod 5, and the two ends of the spring 8 are respectively fixedly connected to the positioning rod 5 and the inner wall of the buffer tube 4, a torsion plate 9 is fixedly arranged at one end of the push rod 6 away from the buffer tube 4, and a pushing inclined surface is provided at one end of the positioning rod 5 close to the push block 7.

[0034] Before installing the buffer tube 4, the insertion position of the buffer tube 4 is first determined, and then the push rods 6 at both ends of the buffer tube 4 are operated. First, the torsion plate 9 is rotated so that the push rod 6 can move laterally. At this time, with the cooperation of the internal and external threads of the buffer tube 4 and the push rod 6, the push rod 6 can move in the buffer tube 4 and drive the push block 7 to move horizontally. When the push block 7 contacts the lower end of the positioning rod 5, the positioning rod 5 can be pushed by the push block 7 to move longitudinally in cooperation with the pushing inclined surface of the positioning rod 5, and the spring 8 is squeezed, so that the positioning rod 5 is inserted into the positioning hole and stably connected to the reinforcement layer 3, thereby completing the positioning and fixation of the buffer tube 4.

[0035] Example 3

[0036] Embodiment 3 is based on Embodiments 1-2 to determine the position of the push rod 6 and to avoid the push rod 6 from being lost before and after operation. Figure 3 As shown, a guide annular groove 10 is formed on the outer wall of the push rod 6 , and an annular plate 11 is fixedly formed on the inner wall of the buffer tube 4 , and the annular plate 11 is rotatably disposed in the guide annular groove 10 .

[0037] While the push rod 6 is rotationally matched with the inside of the buffer tube 4 through the internal and external threads, the horizontal movement distance of the push rod 6 is fixed under the rotational cooperation of the annular plate 11 and the wire annular groove 10, so as to avoid the push rod 6 from being separated from the buffer tube 4 and causing the loss of the push rod 6, thereby further improving the overall use effect of the composite paperboard.

[0038] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A composite cardboard with compressive resistance and shock absorption functions, comprising an upper surface layer (1) and a lower surface layer (2), characterized in that, A reinforcing layer (3) is fixedly arranged between the upper surface layer (1) and the lower surface layer (2). The reinforcing layer (3) is arranged in a wavy shape and is provided with a plurality of curved reinforcing surfaces; A plurality of buffer tubes (4) arranged at intervals are inserted between the reinforcing layer (3), the upper surface layer (1) and the lower surface layer (2). Two symmetrically arranged positioning rods (5) are slidably inserted through the outer wall of the buffer tube (4), and the positioning rods (5) are inserted into the reinforcing layer (3); A pushing and inserting mechanism for driving the positioning rod (5) to move longitudinally is arranged between the end of the buffer tube (4) and the positioning rod (5).

2. The composite cardboard with compressive and shock-absorbing functions according to claim 1, wherein, The pushing and inserting mechanism includes a push rod (6). An internal thread is provided on the inner wall of the buffer tube (4), and an external thread is provided on the outer wall of the push rod (6), and the push rod (6) is threaded inside the buffer tube (4). A push block (7) is fixedly arranged at the end of the push rod (6). The push block (7) is arranged in cooperation with the positioning rod (5). A spring (8) is sleeved on the rod wall of the positioning rod (5), and both ends of the spring (8) are fixedly connected to the positioning rod (5) and the inner wall of the buffer tube (4) respectively.

3. The composite cardboard with compressive and shock-absorbing functions according to claim 1, characterized in that, Positioning holes for inserting the positioning rods (5) are provided inside the reinforcing layer (3).

4. The composite cardboard with compressive and shock-absorbing functions according to claim 2, characterized in that, A torsion plate (9) is fixedly arranged at one end of the push rod (6) away from the buffer tube (4), and a pushing inclined surface is provided at one end of the positioning rod (5) close to the push block (7).

5. The composite cardboard with compressive and shock-absorbing functions according to claim 2, characterized in that, A guiding annular groove (10) is provided on the outer wall of the push rod (6), and an annular plate (11) is fixedly arranged on the inner wall of the buffer tube (4). The annular plate (11) is rotatably arranged in the guiding annular groove (10).

6. The composite cardboard with compressive and shock-absorbing functions according to claim 1, characterized in that, The buffer tube (4) is a rubber buffer tube.

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