A cable protection device for coal mining

Abstract

This utility model relates to the field of cable protection technology, specifically providing a cable protection device for coal mining, comprising: a support having a semi-open inner cavity and an outer cavity; multiple cable supports arranged sequentially in the inner cavity along the cable laying direction; a shock-absorbing elastic mechanism in the outer cavity; a first protective plate disposed in the shock-absorbing elastic mechanism and capable of buffering and shock-absorbing movement with the shock-absorbing elastic mechanism, and the first protective plate covering the opening end of the outer cavity; and multiple elastic expansion strips disposed on the inner wall of the inner cavity, opposite to the cable supports. This utility model effectively solves the problem of cables in coal mining tunnels being easily damaged by impacts in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of cable protection technology, specifically providing a cable protection device for coal mining. Background Technology

[0002] In coal mining, mining equipment is often used, necessitating the laying of cables within the tunnels for power and signal transmission. These cables are typically laid along the tunnel walls, but this also exposes them to the risk of collision with mining equipment. Damage to these cables can disrupt communication and power transmission to the equipment, leading to significant losses and even casualties. Therefore, designing a protective device to prevent cable collisions is of paramount importance. Utility Model Content

[0003] This invention provides a cable protection device for coal mining, which solves the problem that cables in coal mining tunnels are easily damaged by impacts in the prior art.

[0004] This utility model provides a cable protection device for coal mining, comprising: The stent has a semi-open inner and outer cavity; Multiple cable supports are disposed in the inner cavity and arranged sequentially along the cable laying direction; A shock-absorbing elastic mechanism is provided in the outer cavity; The first protective plate is disposed on the shock-absorbing elastic mechanism and can perform buffering and shock-absorbing movements with the shock-absorbing elastic mechanism, and the first protective plate can cover the opening end of the outer cavity; Multiple elastic expansion strips are provided on the inner wall of the inner cavity and are arranged opposite to the cable support.

[0005] According to the cable protection device provided by this utility model, the cable support includes: The first support is used to protect high-voltage cables; The second support is used to protect low-voltage cables; The third support is used to protect communication cables.

[0006] The cable protection device provided by this utility model further includes a semi-open side cavity and a second protective plate. The shock-absorbing elastic mechanism has multiple components, some of which are located in the side cavity. The second protective plate is connected to the shock-absorbing elastic mechanism and can perform buffering and shock-absorbing movements with the shock-absorbing elastic mechanism. The second protective plate can cover the open end of the side cavity.

[0007] According to the cable protection device provided by this utility model, the shock-absorbing elastic mechanism includes a plurality of shock-absorbing springs, which are distributed in a dot matrix pattern in the outer cavity.

[0008] According to the cable protection device provided by this utility model, the first protective plate includes a plurality of first unit plates, which are arranged in sequence and connected to the shock-absorbing spring.

[0009] According to the cable protection device provided by this utility model, the shock-absorbing elastic mechanism includes a plurality of shock-absorbing springs, and the plurality of shock-absorbing springs are distributed in a dot matrix pattern in the side cavity; The second protective plate includes multiple second unit plates, which are arranged sequentially and connected to the shock-absorbing spring.

[0010] According to the cable protection device provided by this utility model, the elastic expansion strip includes a silicone expansion strip.

[0011] According to the cable protection device provided by this utility model, a first limiting strip is provided at the edge of the outer cavity, and a first stop strip is provided between each of the first unit plates.

[0012] According to the cable protection device provided by this utility model, a second limiting strip is provided at the edge of the side cavity, and a second stop strip is provided between each second unit plate.

[0013] According to the cable protection device provided by this utility model, the included angle between the first protective plate and the second protective plate is 100°-150°.

[0014] The beneficial effects of this utility model are: This utility model provides a cable protection device for coal mining. By installing a shock-absorbing and buffering protective plate on the cable, it absorbs and disperses the impact energy when mining equipment accidentally collides with the cable, ultimately protecting the cable. Specifically: By designing the bracket with a semi-open inner and outer cavity, the inner cavity can protect the cable, while the outer cavity can absorb impact energy. The cable support can fix the cable bundle, preventing cable displacement during a collision. The shock-absorbing elastic mechanism and the first protective plate can absorb and decompose the frontal impact force. The elastic expansion strip can provide secondary protection for the cable. When the impact force is too large and causes the first protective plate and the bracket to deform, the elastic expansion strip expands under impact, playing a secondary buffering role.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the cable protection device provided by this utility model; Figure 2 This is a three-dimensional structural diagram of the cable protection device provided by this utility model with the protective plate of the hidden part concealed. Figure 3 This is a three-dimensional structural diagram of the bracket and cable support provided by this utility model; Figure 4 This is a three-dimensional structural diagram of the longitudinal cross-section of the cable protection device provided by this utility model; Figure 5 This is a three-dimensional cross-sectional view of the cable protection device provided by this utility model. Figure 6 This is a three-dimensional structural diagram of the longitudinal cross-section of the bracket provided by this utility model; Figure 7 yes Figure 6 Enlarged view at point A; Figure 8 This is a side view of the cable protection device provided by this utility model.

[0018] Figure label: 1. Bracket; 101. Inner cavity; 102. Outer cavity; 103. Side cavity; 104. First limiting strip; 105. First stop strip; 106. Second limiting strip; 107. Second stop strip; 2. Cable support; 201. First support; 202. Second support; 203. Third support; 3. Shock-absorbing elastic mechanism; 4. First protective plate; 401. First unit plate; 5. Elastic expansion strip; 6. Second protective plate; 601. Second unit plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of the embodiments of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "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 the embodiments of 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 the embodiments of this utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0022] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0024] The following is combined with Figures 1 to 8 The embodiments shown illustrate the technical solution of this utility model: This utility model embodiment provides a cable protection device for coal mining, such as... Figures 1 to 4 As shown, it includes: The stent 1 has a semi-open inner cavity 101 and an outer cavity 102; Multiple cable supports 2 are provided in the inner cavity 101 and arranged sequentially along the cable laying direction; The shock-absorbing elastic mechanism 3 is located in the outer cavity 102; The first protective plate 4 is disposed on the shock-absorbing elastic mechanism 3 and can perform buffering and shock-absorbing movements with the shock-absorbing elastic mechanism 3. The first protective plate 4 can cover the opening end of the outer cavity 102. Multiple elastic expansion strips 5 are provided on the inner wall of the inner cavity 101 and are arranged opposite to the cable support 2.

[0025] In some embodiments, the bracket 1 can be made of a high-hardness alloy material; the cable support 2 can be a clamp, buckle or other structure that can fix the cable; the shock-absorbing elastic mechanism 3 can be a spring mechanism, a spring and damper composite mechanism or an elastomer buffer mechanism (such as shear and compression deformation of materials such as rubber and polyurethane); the first protective plate 4 can be made of metal or wood, each with its own advantages and disadvantages; the elastic expansion strip 5 can be made of foamed material, phase change expansion material or other materials (relying on material phase change to absorb energy).

[0026] This utility model provides a cable protection device for coal mining. By installing a protective plate with shock absorption and buffering function on the cable, it can absorb and disperse the impact energy when mining equipment accidentally collides with the cable, ultimately achieving the purpose of protecting the cable. Specifically: By configuring the bracket 1 with a semi-open inner cavity 101 and an outer cavity 102, the inner cavity 101 can protect the cable, while the outer cavity 102 can absorb impact energy. The cable support 2 can fix the cable bundle, preventing the cable from shifting during a collision. The shock-absorbing elastic mechanism 3 and the first protective plate 4 can absorb and decompose the frontal impact force. The elastic expansion strip 5 can provide secondary protection for the cable. When the impact force is too large and causes the first protective plate 4 and the bracket 1 to deform, the elastic expansion strip 5 expands under impact, playing a secondary buffering role.

[0027] According to the cable protection device provided by this utility model, such as Figure 4 and Figure 5 As shown, the cable support 2 includes: a first support 201 for supporting high-voltage cables; a second support 202 for supporting low-voltage cables; and a third support 203 for supporting communication cables.

[0028] In this embodiment, the cable support 2 is preferably a clamp structure, which can be customized according to the cable diameter and has a good fixing effect. At the same time, the clamps can be arranged sequentially along the cable laying direction. When it is necessary to disassemble the cable, the clamps can be unlocked to facilitate the removal of the cable. In this embodiment, the clamps are also divided into three different specifications: large, medium and small, corresponding to the first support 201, the second support 202 and the third support 203 mentioned above, respectively. This can accommodate different cable thicknesses. That is, the first support 201 is suitable for fixing high voltage cables, the second support 202 is suitable for fixing low voltage cables, and the third support 203 is suitable for fixing communication cables.

[0029] According to the cable protection device provided by this utility model, such as Figures 1 to 3 As shown, it also includes a semi-open side cavity 103 and a second protective plate 6. There are multiple shock-absorbing elastic mechanisms 3. Some of the shock-absorbing elastic mechanisms 3 are located in the side cavity 103. The second protective plate 6 is connected to the shock-absorbing elastic mechanism 3 and can perform buffering and shock-absorbing movements with the shock-absorbing elastic mechanism 3. The second protective plate 6 can cover the open end of the side cavity 103.

[0030] In this embodiment, an open side cavity 103 is also provided on the side of the bracket 1, which can be used to install the shock-absorbing elastic mechanism 3 and the second protective plate 6, mainly to prevent impacts from the side. Its structure is similar to that of the outer cavity 102. Similarly, the second protective plate 6 can be a high-hardness alloy metal plate, or it can be high-density polyethylene or hard rubber, etc. High-density polyethylene has advantages such as good wear resistance, high toughness (not brittle at low temperature -40℃), impact resistance (elongation at break ≥800%, not easy to deform / cracking after impact), odorless, easy to clean (smooth surface that does not get dirty), density 0.94-0.96g / cm³, and light weight (70% lighter than steel).

[0031] According to the cable protection device provided by this utility model, such as Figure 2 As shown, the damping elastic mechanism 3 includes multiple damping springs, which are distributed in a dot matrix pattern in the outer cavity 102.

[0032] In this embodiment, the shock-absorbing elastic mechanism 3 is preferably a dot matrix distribution of multiple shock-absorbing springs, which has the following advantages: (1) the force is evenly distributed, avoiding local overload; (2) the shock absorption frequency coverage is wide, the buffering effect is more stable, and there is no resonance blind spot; (3) the structure is modular, highly adaptable, and easy to expand and maintain; (4) it balances lightweight and structural stability, and has high space utilization.

[0033] According to the cable protection device provided by this utility model, such as Figure 1 and Figure 2 As shown, the first protective plate 4 includes multiple first unit plates 401, which are arranged in sequence and connected to the shock-absorbing spring.

[0034] In this embodiment, the first protective plate 4 is divided into a combination of multiple first unit plates 401, which can realize the modular buffering of the protective plate. If a protective plate is damaged, it can be replaced individually without replacing the whole plate, thus reducing maintenance costs.

[0035] According to the cable protection device provided by this utility model, such as Figure 2 As shown, the damping elastic mechanism 3 includes multiple damping springs, which are distributed in a dot matrix pattern in the side cavity 103. The second protective plate 6 includes multiple second unit plates 601, which are arranged in sequence and connected to the shock-absorbing spring.

[0036] In this embodiment, the shock-absorbing elastic mechanism 3 in the side cavity 103 is also set as a dot matrix distribution of multiple shock-absorbing springs, which can also achieve uniform distribution of side force and avoid the problem of local overload; by splitting the second protective plate 6 into a combination of multiple second unit plates 601, the modular buffer of the protective plate can be realized. If a protective plate is damaged, it can be replaced individually without replacing the whole, thus reducing maintenance costs.

[0037] According to the cable protection device provided by this utility model, such as Figure 4 As shown, the elastic expansion strip 5 includes a silicone expansion strip.

[0038] In this embodiment, the elastic expansion strip 5 is preferably a silicone expansion strip, which has the following advantages: (1) The continuous operating temperature range of silicone expansion strips can reach -60℃ to 200℃ (special modified silicone can be extended to -100℃ to 300℃). It can maintain stable elasticity and expansion performance in high and low temperature environments. It does not crack at low temperatures (avoiding ordinary rubber from hardening and breaking below -20℃, losing its expansion and buffering effect), and does not soften or leak at high temperatures (avoiding PU and PE expansion strips from deforming and aging faster above 80℃).

[0039] (2) The elongation at break of silicone can reach 300%-800%, the tensile strength is ≥5MPa, and the rebound rate after expansion is ≥90% (the permanent deformation after long-term compression is ≤5%). When used as an expansion strip, it can fill gaps and disperse impact pressure through its own expansion, and can quickly rebound to its original shape after unloading. It has strong reusability and a service life of 5-10 years, which is 2-3 times that of ordinary rubber expansion strips.

[0040] According to the cable protection device provided by this utility model, such as Figure 6 and Figure 7 As shown, a first limiting strip 104 is provided at the edge of the outer cavity 102, and a first stop strip 105 is provided between each first unit plate 401.

[0041] In this embodiment, by setting a first limiting strip 104 at the edge of the outer cavity 102, the first protective plate 4 can be limited in the spring extension direction; by setting a triangular prism-shaped first stop strip 105, the first protective plate 4 can be limited in the device length direction, thus ensuring the stability of the shock-absorbing elastic mechanism 3.

[0042] According to the cable protection device provided by this utility model, such as Figure 4 As shown, a second limiting strip 106 is provided at the edge of the side cavity 103, and a second stop strip 107 is provided between each second unit plate 601.

[0043] In this embodiment, by setting a second limiting strip 106 at the edge of the side cavity 103, the second protective plate 6 can be limited in the spring extension direction; by setting a triangular prism-shaped first stop strip 105, the second protective plate 6 can be limited in the device length direction, thus ensuring the stability of the shock-absorbing elastic mechanism 3.

[0044] According to the cable protection device provided by this utility model, such as Figure 8 As shown, the included angle between the first protective plate 4 and the second protective plate 6 is 100°-150°.

[0045] In this embodiment, the included angle between the first protective plate 4 and the second protective plate 6 is set to 100°-150°, i.e. angle α, so that the second protective plate 6 can withstand lateral impacts within the maximum angle range.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cable protection device for coal mining, characterized in that, include: The stent has a semi-open inner and outer cavity; Multiple cable supports are disposed in the inner cavity and arranged sequentially along the cable laying direction; A shock-absorbing elastic mechanism is provided in the outer cavity; The first protective plate is disposed on the shock-absorbing elastic mechanism and can perform buffering and shock-absorbing movements with the shock-absorbing elastic mechanism, and the first protective plate can cover the opening end of the outer cavity; Multiple elastic expansion strips are provided on the inner wall of the inner cavity and are arranged opposite to the cable support.

2. The cable protection device according to claim 1, characterized in that, The cable support includes: The first support is used to protect high-voltage cables; The second support is used to protect low-voltage cables; The third support is used to protect communication cables.

3. The cable protection device according to claim 1, characterized in that, It also includes a semi-open side cavity and a second protective plate. The shock-absorbing elastic mechanism has multiple components, some of which are located inside the side cavity. The second protective plate is connected to the shock-absorbing elastic mechanism and can perform buffering and shock-absorbing movements with the shock-absorbing elastic mechanism. The second protective plate can cover the opening end of the side cavity.

4. The cable protection device according to claim 1, characterized in that, The shock-absorbing elastic mechanism includes multiple shock-absorbing springs, which are distributed in a dot matrix pattern in the outer cavity.

5. The cable protection device according to claim 4, characterized in that, The first protective plate includes multiple first unit plates, which are arranged sequentially and connected to the shock-absorbing spring.

6. The cable protection device according to claim 3, characterized in that, The shock-absorbing elastic mechanism includes multiple shock-absorbing springs, which are distributed in a dot matrix pattern in the side cavity. The second protective plate includes multiple second unit plates, which are arranged sequentially and connected to the shock-absorbing spring.

7. The cable protection device according to claim 1, characterized in that, The elastic expansion strip includes a silicone expansion strip.

8. The cable protection device according to claim 5, characterized in that, A first limiting strip is provided at the edge of the outer cavity, and a first stop strip is provided between each of the first unit plates.

9. The cable protection device according to claim 6, characterized in that, A second limiting strip is provided at the edge of the side cavity, and a second stop strip is provided between each of the second unit plates.

10. The cable protection device according to claim 3, characterized in that, The included angle between the first protective plate and the second protective plate is 100°-150°.

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