An HDMI data cable for home audio-visual wiring

Abstract

The present invention relates to the technical field of HDMI data cables, and specifically discloses an HDMI data cable for home audio-visual wiring. The technical problem to be solved by the present invention is that the structure of the existing HDMI data cable is relatively single, and it often does not have strong anti-electromagnetic wave interference ability. When users pre-bury HDMI data cables, they are often mixed with high-voltage cables, resulting in distortion of high-definition signals in the later stage. Moreover, when high-frequency signals are affected by electromagnetic interference, problems such as jitter, frame skipping, and picture noise will occur, affecting the viewing effect. The technical solution is as follows: It includes a data cable body, and the data cable body includes a sheath, an inner protection layer, a filling layer, and electric wires. The inner protection layer is arranged inside the sheath. The beneficial effect of the present invention is that by using the inner protection layer, the design of the inner protection layer adopts a combination design of multiple shielding materials. On the one hand, it improves the anti-interference ability, and on the other hand, it uses the characteristics of the materials to improve the strength of the cable and extend the service life of the data cable body.

Description

Technical Field

[0001] The present invention relates to the technical field of HDMI data cables, and particularly to an HDMI data cable for home audio-visual wiring. Background Technique

[0002] HDMI cable is the abbreviation of High-Definition Multimedia Interface cable, which can transmit uncompressed high-definition video and multi-channel audio data with high quality. Currently, it is widely used in home audio-visual systems. Through an HDMI cable, a multimedia player can transmit high-definition video and audio data to a high-definition screen and high-quality audio equipment, enabling users to enjoy high-definition picture quality and shocking audio effects in a small living room. Currently, manufacturers of HDMI data cables provide longer cables for wiring for home audio-visual users. Especially during the decoration of a new house, in order to achieve an overall home audio-visual design effect, HDMI data cables are often pre-buried in advance.

[0003] However, the structure of traditional HDMI data cables is relatively simple and often does not have strong anti-electromagnetic interference ability. When users pre-bury HDMI data cables, they are often mixed with high-voltage cables, resulting in distortion of high-definition signals in the later stage. Moreover, when high-frequency signals are affected by electromagnetic interference, problems such as jitter, frame skipping, and picture noise will occur, affecting the viewing effect. For this reason, we propose an HDMI data cable for home audio-visual wiring. Summary of the Invention

[0004] The purpose of the present invention is to provide an HDMI data cable for home audio-visual wiring to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An HDMI data cable for home audio-visual wiring, including a data cable body. The data cable body includes a sheath, an inner protective layer, a filling layer, and wires. The inner protective layer is arranged inside the sheath, the filling layer is arranged inside the inner protective layer, and the wires are arranged inside the filling layer. Two metal positioning plates are fixedly sleeved on the surface of the data cable body. Both ends of the data cable body are fixedly connected with connectors, and a protective positioning mechanism is arranged on the surface of the connectors.

[0006] The protective positioning mechanism includes a protection unit. The protection unit is sleeved on the surface of the connector and is used for dust-proof protection of the connector.

[0007] Preferably, the protection and positioning mechanism further includes a positioning unit disposed on the surface of the joint. The positioning unit is used in cooperation with the protection unit to position the protection unit. The sheath includes a base layer, a protective layer is provided on the surface of the base layer, a reinforcing layer is provided on the surface of the protective layer, and an outer protective layer is provided on the surface of the reinforcing layer. The protection unit includes a protective cover that is sleeved on the surface of the joint. A groove is formed on the surface of the protective cover. A connecting rope is fixedly connected to the bottom of the protective cover. A sliding sleeve is fixedly connected to the side of the connecting rope away from the protective cover. The sliding sleeve is sleeved on the surface of the data line body.

[0008] Preferably, a positioning frame is fixedly connected to one side of the joint, and the surface of the positioning frame is in contact with the inner wall of the protective cover.

[0009] Preferably, the protective cover is made of transparent plastic material, and both the sliding sleeve and the connecting rope are made of rubber material.

[0010] Preferably, the positioning unit includes two positioning rods. The bottoms of the two positioning rods are fixedly connected to the joint. A pressing plate is movably sleeved on the surface of the positioning rod. Two first springs are fixedly connected to the bottom of the pressing plate. Both of the two first springs are sleeved on the surface of the positioning rod. The bottoms of the two first springs are fixedly connected to the joint. A fixing rod is fixedly connected to the bottom of the pressing plate. The number of the fixing rods is four. A pressing block is fixedly connected between the bottoms of the two fixing rods. One side of the pressing block close to the joint is in contact with the joint. An inclined block is provided on the side of the pressing block away from the joint. A positioning frame is fixedly connected to the side of the inclined block away from the pressing block. A second spring is fixedly connected to the side of the positioning frame away from the joint. A limiting rod is fixedly connected to the side of the second spring away from the positioning frame. The side of the limiting rod close to the positioning frame penetrates through the positioning frame and is fixedly connected to the joint. Convex blocks are fixedly connected to the opposite sides of the two positioning frames. The surface of the convex block is in contact with the inner wall of the groove.

[0011] Preferably, a metal fixing frame is fixedly installed on the surface of the joint through bolts, and the side of the metal fixing frame away from the joint is inserted into the inner wall of the metal positioning disc.

[0012] Preferably, the inner protective layer includes a first shielding layer, and a second shielding layer is provided on the surface of the first shielding layer. The first shielding layer is woven from galvanized steel wire mesh. The second shielding layer is made of tin foil material, and the tin foil tape is spirally wound on the surface of the galvanized steel wire mesh.

[0013] Preferably, the protective layer includes an antifreeze layer, and a tear-resistant layer is provided on the surface of the antifreeze layer. The antifreeze layer is made of polyethylene material, and the tear-resistant layer is made of fiberglass material.

[0014] Preferably, the reinforcing layer includes a high-temperature resistant layer, an elastic layer is arranged on the surface of the high-temperature resistant layer, the high-temperature resistant layer is made of refractory mica tape, and the elastic layer is made of polyolefin thermoplastic elastomer.

[0015] Preferably, the outer protective layer includes a wear-resistant layer, a corrosion-resistant layer is arranged on the surface of the wear-resistant layer, the wear-resistant layer is made of ultra-high molecular weight polyethylene, and the corrosion-resistant layer is made of polyvinylidene fluoride.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] By providing a protection and positioning mechanism, the present invention can protect the connector under the action of the protection and positioning mechanism, avoid dust and moisture contacting the connector during the wiring process, causing damage to it, and at the same time use the positioning unit to disassemble the protective cover, facilitating the user to connect the connector to the device.

[0018] By using the inner protective layer, the design of the inner protective layer adopts a combination design of multi-layer shielding materials. On the one hand, it improves the anti-interference ability, and on the other hand, it uses the characteristics of the materials to improve the strength of the cable and extend the service life of the data line body.

[0019] By providing an outer protective layer, the present invention can improve the wear resistance and corrosion resistance of the data line body under the action of the outer protective layer, thereby extending the service life of the data line body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a structural sectional split view of the data line body, the metal positioning disc and the connector of the present invention;

[0022] Figure 3 is a structural split view of the connector, the protection and positioning mechanism and the metal fixing frame of the present invention;

[0023] Figure 4 is a left side cross-sectional view of the structure of the connector and the protection and positioning mechanism of the present invention;

[0024] Figure 5 For the present invention Figure 4 is an enlarged view of the structure at A in;

[0025] Figure 6 is a structural composition diagram of the data line body of the present invention;

[0026] Figure 7 is a structural composition diagram of the sheath of the present invention;

[0027] Figure 8 is a structural composition diagram of the inner protective layer of the present invention;

[0028] Figure 9 This is the structural composition diagram of the protective layer of the present invention;

[0029] Figure 10 This is the structural composition diagram of the strengthening layer of the present invention;

[0030] Figure 11 This is the structural composition diagram of the outer protective layer of the present invention.

[0031] In the figure: 1. Data line body; 11. Sheath; 111. Base layer; 112. Protective layer; 1121. Anti-freezing layer; 1122. Anti-tearing layer; 113. Strengthening layer; 1131. High-temperature resistant layer; 1132. Elastic layer; 114. Outer protective layer; 1141. Wear-resistant layer; 1142. Corrosion-resistant layer; 12. Inner protective layer; 1201. First shielding layer; 1202. Second shielding layer; 13. Filling layer; 14. Electric wire; 15. Metal positioning disc; 16. Connector; 17. Positioning frame; 18. Metal fixing frame; 2. Protective positioning mechanism; 2101. Protective cover; 2102. Groove; 2103. Connecting rope; 2104. Sliding sleeve; 22. Positioning unit; 2201. Positioning rod; 2202. Pressure plate; 2203. First spring; 2204. Fixed rod; 2205. Pressing block; 2206. Inclined block; 2207. Positioning frame; 2208. Second spring; 2209. Limiting rod; 2210. Convex block. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0033] Please refer to Figures 1-11 , the present invention provides a technical solution: an HDMI data line for home audio-visual wiring. The present invention makes corresponding improvements to the technical problems mentioned in the background technology, including a data line body 1, the data line body 1 includes a sheath 11, an inner protective layer 12, a filling layer 13 and an electric wire 14. The inner protective layer 12 is arranged inside the sheath 11, the filling layer 13 is arranged inside the inner protective layer 12, the electric wire 14 is arranged inside the filling layer 13. Two metal positioning discs 15 are fixedly sleeved on the surface of the data line body 1. Connectors 16 are fixedly connected to both ends of the data line body 1, and a protective positioning mechanism 2 is arranged on the surface of the connector 16.

[0034] The protection and positioning mechanism 2 includes a protection unit. The protection unit is sleeved on the surface of the joint 16 and is used for dust-proof protection of the joint 16. The protection and positioning mechanism 2 further includes a positioning unit 22. The positioning unit 22 is arranged on the surface of the joint 16 and is used in cooperation with the protection unit. The positioning unit 22 is used for positioning the protection unit. The sheath 11 includes a base layer 111. A protective layer 112 is arranged on the surface of the base layer 111. A reinforcing layer 113 is arranged on the surface of the protective layer 112. An outer protective layer 114 is arranged on the surface of the reinforcing layer 113. The protection unit includes a protective cover 2101. The protective cover 2101 is sleeved on the surface of the joint 16. A groove 2102 is formed on the surface of the protective cover 2101. A connecting rope 2103 is fixedly connected to the bottom of the protective cover 2101. A sliding sleeve 2104 is fixedly connected to the side of the connecting rope 2103 away from the protective cover 2101. The sliding sleeve 2104 is sleeved on the surface of the data cable body 1. By providing the protection unit, under the action of the protection unit, dust and water can be prevented from entering the joint 16, avoiding damage to the joint 16 during the wiring process.

[0035] A positioning frame 17 is fixedly connected to one side of the joint 16. The surface of the positioning frame 17 is in contact with the inner wall of the protective cover 2101. By providing the positioning frame 17, the protective cover 2101 can be limited, thereby improving the installation efficiency of the user.

[0036] The protective cover 2101 is made of transparent plastic material, and both the sliding sleeve 2104 and the connecting rope 2103 are made of rubber material. By providing the rubber material sliding sleeve 2104 and connecting rope 2103, it is convenient for the user to install the protective cover 2101. At the same time, using the transparent plastic material protective cover 2101 can play a role in dust-proof and water-proof.

[0037] The positioning unit 22 includes two positioning rods 2201. The bottoms of the two positioning rods 2201 are fixedly connected to the joint 16. A pressing plate 2202 is movably sleeved on the surface of the positioning rod 2201. Two first springs 2203 are fixedly connected to the bottom of the pressing plate 2202. Both of the two first springs 2203 are sleeved on the surface of the positioning rod 2201. The bottoms of the two first springs 2203 are fixedly connected to the joint 16. A fixing rod 2204 is fixedly connected to the bottom of the pressing plate 2202. The number of the fixing rods 2204 is four. A pressing block 2205 is fixedly connected between the bottoms of the two fixing rods 2204. One side of the pressing block 2205 close to the joint 16 contacts the joint 16. An inclined block 2206 is arranged on the side of the pressing block 2205 far from the joint 16. A positioning frame 2207 is fixedly connected to the side of the inclined block 2206 far from the pressing block 2205. A second spring 2208 is fixedly connected to the side of the positioning frame 2207 far from the joint 16. A limiting rod 2209 is fixedly connected to the side of the second spring 2208 far from the positioning frame 2207. The side of the limiting rod 2209 close to the positioning frame 2207 penetrates through the positioning frame 2207 and is fixedly connected to the joint 16. Convex blocks 2210 are fixedly connected to the opposite sides of the two positioning frames 2207. The surface of the convex block 2210 contacts the inner wall of the groove 2102. By providing the positioning unit 22, the protective cover 2101 can be positioned under the action of the positioning unit 22, avoiding the protective cover 2101 falling off during the wiring process, resulting in damage to the joint 16 due to contact with dust and moisture. At the same time, the protective cover 2101 can be disassembled by using the positioning unit 22, which is convenient for the user to connect the joint 16 to the device.

[0038] The specific implementation manner of this embodiment is as follows: During the wiring process, the user presses the pressing plate 2202 downward. When the pressing plate 2202 moves downward, it squeezes the two first springs 2203 and drives the four fixing rods 2204 to move downward. When the four fixing rods 2204 move downward, they drive the two pressing blocks 2205 to move downward. When the two pressing blocks 2205 move downward, they squeeze the two inclined blocks 2206. After being squeezed, the two inclined blocks 2206 drive the two positioning frames 2207 to move in the opposite direction. When the two positioning frames 2207 move in the opposite direction, they squeeze the four second springs 2208 and drive the two convex blocks 2210 to move in the opposite direction. When the convex blocks 2210 move to the designated position, the user moves the position of the sliding sleeve 2104 and inserts the protective cover 2101 onto the surface of the joint 16. Then, the pressing plate 2202 is released. At this time, the reaction forces of the first spring 2203 and the second spring 2208 drive the two convex blocks 2210 to move towards each other, so that the convex blocks 2210 are inserted into the groove 2102, and the protective cover 2101 can be positioned. The protective cover 2101 can prevent water and dust from entering the joint 16, avoiding damage to the joint 16 caused by dust and moisture entering the inside of the joint 16. Embodiment

[0039] Please refer to Figures 1-11 , the present invention provides a technical solution: an HDMI data cable for home audio - video wiring. The present invention makes corresponding improvements to the technical problems mentioned in the background art. A metal fixing frame 18 is fixedly installed on the surface of the connector 16 through bolts, and one side of the metal fixing frame 18 away from the connector 16 is inserted into the inner wall of the metal positioning disc 15; through the cooperation of the metal fixing frame 18 and the metal positioning disc 15, the connection stability between the data cable body 1 and the connector 16 can be improved, avoiding the situation that when the user is wiring, pulling the connector 16 causes the connection between the connector 16 and the data cable body 1 to break.

[0040] The inner protective layer 12 includes a first shielding layer 1201, and a second shielding layer 1202 is arranged on the surface of the first shielding layer 1201. The first shielding layer 1201 is made of galvanized steel wire mesh woven, and the second shielding layer 1202 is made of tin foil material, and the tin foil strip is spirally wound on the surface of the galvanized steel wire mesh; by using the inner protective layer 12, the design of this inner protective layer 12 adopts a combined design of multi - layer shielding materials. On the one hand, it improves the anti - interference ability, and on the other hand, it uses the characteristics of the materials to improve the strength of the cable and extend the service life of the data cable body 1.

[0041] The specific implementation mode of this embodiment is: the first shielding layer 1201 made of galvanized steel wire mesh woven can prevent the interference of external electromagnetic signals. The shielding ability of this material is achieved through its conductive and shielding components, which can absorb or reflect electromagnetic waves to reduce signal transmission or leakage. Through the second shielding layer 1202 made of tin foil material, because it contains metal elements, it can effectively reflect electromagnetic waves and achieve effective shielding of signals. Embodiment

[0042] Please refer to Figures 1-11 , the present invention provides a technical solution: an HDMI data cable for home audio - video wiring. The present invention makes corresponding improvements to the technical problems mentioned in the background art. The protective layer 112 includes an anti - freezing layer 1121, and a tear - resistant layer 1122 is arranged on the surface of the anti - freezing layer 1121. The anti - freezing layer 1121 is made of polyethylene material, and the tear - resistant layer 1122 is made of fiberglass material; by setting the protective layer 112, under the action of the protective layer 112, the anti - freezing performance and tear - resistant performance of the data cable body 1 can be improved, avoiding tearing and damage of the data cable body 1 during installation.

[0043] The strengthening layer 113 includes a high - temperature resistant layer 1131, and an elastic layer 1132 is arranged on the surface of the high - temperature resistant layer 1131. The high - temperature resistant layer 1131 is made of refractory mica tape material, and the elastic layer 1132 is made of polyolefin thermoplastic elastomer; by setting the strengthening layer 113, under the action of the strengthening layer 113, the high - temperature resistant performance and elasticity of the data cable body 1 can be improved.

[0044] The outer protective layer 114 includes a wear-resistant layer 1141, and a corrosion-resistant layer 1142 is provided on the surface of the wear-resistant layer 1141. The wear-resistant layer 1141 is made of ultra-high molecular weight polyethylene, and the corrosion-resistant layer 1142 is made of polyvinylidene fluoride. By providing the outer protective layer 114, the wear resistance and corrosion resistance of the data line body 1 can be improved under the action of the outer protective layer 114, thereby extending the service life of the data line body 1.

[0045] The specific implementation of this embodiment is as follows: Through the antifreeze layer 1121 made of polyethylene material, it has high flexibility and toughness, can maintain good elasticity and toughness at low temperatures, and is not prone to embrittlement. Therefore, it can improve the antifreeze ability of the data line body 1. Through the tear-resistant layer 1122 made of fiberglass material, glass fiber is a material with high strength and good durability, and it has strong tear resistance. Therefore, it can improve the tear resistance of the data line body 1. Through the high-temperature resistant layer 1131 made of refractory mica tape material, it has excellent high-temperature resistance and combustion resistance. Therefore, it can improve the high-temperature resistance of the data line body 1. Through the elastic layer 1132 made of polyolefin thermoplastic elastomer, it has good elasticity, can quickly return to its original state after being stressed, and maintain long-term elastic deformation. Therefore, it can improve the elastic ability of the data line body 1. Through the wear-resistant layer 1141 made of ultra-high molecular weight polyethylene material, it has excellent wear resistance and can maintain a low friction coefficient under high-speed friction. Therefore, it can improve the wear resistance of the data line body 1. Through the corrosion-resistant layer 1142 made of polyvinylidene fluoride material, it has good chemical stability and can not undergo chemical reactions under the erosion of various chemical substances such as acids, alkalis, and salts. Therefore, it can improve the corrosion resistance of the data line body 1.

[0046] Working principle: During the wiring process, the user presses down the pressing plate 2202. When the pressing plate 2202 moves downward, it squeezes the two first springs 2203 and drives the four fixing rods 2204 to move downward. When the four fixing rods 2204 move downward, they drive the two pressing blocks 2205 to move downward. When the two pressing blocks 2205 move downward, they squeeze the two inclined blocks 2206. After being squeezed, the two inclined blocks 2206 drive the two positioning brackets 2207 to move in the reverse direction. When the two positioning brackets 2207 move in the reverse direction, they squeeze the four second springs 2208 and drive the two bumps 2210 to move in the opposite direction. When the bumps 2210 move to the specified position, the user moves the position of the sliding sleeve 2104 and inserts the protective cover 2101 onto the surface of the connector 16. Then, the pressing plate 2202 is released. At this time, the reaction forces of the first spring 2203 and the second spring 2208 drive the two bumps 2210 to move towards each other, so that the bumps 2210 are inserted into the grooves 2102, and the protective cover 2101 can be positioned. The protective cover 2101 can prevent water and dust from entering the connector 16 and avoid damage to it. The first shielding layer 1201 made of galvanized steel wire mesh can prevent external electromagnetic signal interference. The shielding ability of this material is achieved through its conductive and shielding components, which can absorb or reflect electromagnetic waves to reduce signal transmission or leakage. The second shielding layer 1202 made of tin foil can effectively reflect electromagnetic waves due to its metal elements, achieving effective shielding of signals. The antifreeze layer 1121 made of polyethylene material has high flexibility and toughness, can maintain good elasticity and toughness at low temperatures, and is not prone to embrittlement. Therefore, it can improve the antifreeze ability of the data cable body 1. The tear-resistant layer 1122 made of fiberglass material, glass fiber is a material with high strength and good durability, and has strong tear resistance. Therefore, it can improve the tear-resistant performance of the data cable body 1. The high-temperature resistant layer 1131 made of refractory mica tape material has excellent high-temperature resistance and combustion resistance. Therefore, it can improve the high-temperature resistant performance of the data cable body 1. The elastic layer 1132 made of polyolefin thermoplastic elastomer has good elasticity, can quickly return to its original state after being stressed, and maintain long-term elastic deformation. Therefore, it can improve the elastic ability of the data cable body 1. The wear-resistant layer 1141 made of ultra-high molecular weight polyethylene material has excellent wear resistance and can maintain a low friction coefficient under high-speed friction. Therefore, it can improve the wear-resistant performance of the data cable body 1. The corrosion-resistant layer 1142 made of polyvinylidene fluoride material has good chemical stability and can not undergo chemical reactions under the erosion of various chemical substances such as acids, alkalis, and salts. Therefore, it can improve the corrosion-resistant performance of the data cable body 1.

[0047] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An HDMI data cable for home audio-visual wiring, comprising a data cable body (1), characterized in that: The data cable body (1) includes a sheath (11), an inner protective layer (12), a filling layer (13), and a wire (14). The inner protective layer (12) is disposed inside the sheath (11), the filling layer (13) is disposed inside the inner protective layer (12), and the wire (14) is disposed inside the filling layer (13). Two metal positioning discs (15) are fixedly sleeved on the surface of the data cable body (1). Connectors (16) are fixedly connected to both ends of the data cable body (1), and a protective positioning mechanism (2) is disposed on the surface of the connector (16). The protective positioning mechanism (2) includes a protection unit and a positioning unit (22). The protection unit is sleeved on the surface of the connector (16) and includes a protective cover (2101). A groove (2102) is formed on the surface of the protective cover (2101). A connecting rope (2103) is fixedly connected to the bottom of the protective cover (2101). A sliding sleeve (2104) is fixedly connected to the side of the connecting rope (2103) away from the protective cover (2101), and the sliding sleeve (2104) is sleeved on the surface of the data cable body (1). The positioning unit (22) includes two positioning rods (2201). The bottoms of the two positioning rods (2201) are fixedly connected to the connector (16). A pressing plate (2202) is movably sleeved on the surface of the positioning rod (2201). Two first springs (2203) are fixedly connected to the bottom of the pressing plate (2202). The two first springs (2203) are sleeved on the surface of the positioning rod (2201) and the bottoms are fixedly connected to the connector (16). Four fixing rods (2204) are fixedly connected to the bottom of the pressing plate (2202). A pressing block (2205) is fixedly connected between the bottoms of the two fixing rods (2204). The side of the pressing block (2205) close to the connector (16) contacts the connector (16). An inclined block (2206) is disposed on the side of the pressing block (2205) away from the connector (16). A positioning frame (2207) is fixedly connected to the side of the inclined block (2206) away from the pressing block (2205). A second spring (2208) is fixedly connected to the side of the positioning frame (2207) away from the connector (16). A limiting rod (2209) is fixedly connected to the side of the second spring (2208) away from the positioning frame (2207). The limiting rod (2209) penetrates through the positioning frame (2207) and is fixedly connected to the connector (16). Protrusions (2210) are fixedly connected to the opposite sides of the two positioning frames (2207), and the surface of the protrusion (2210) contacts the inner wall of the groove (2102). The inner protective layer (12) includes a first shielding layer (1201) and a second shielding layer (1202). The first shielding layer (1201) is made of galvanized steel wire mesh woven, and the second shielding layer (1202) is made of tin foil and spirally wound on the surface of the galvanized steel wire mesh. The sheath (11) includes a base layer (111), a protective layer (112), a strengthening layer (113) and an outer protective layer (114). The protective layer (112) includes an anti-freezing layer (1121) made of polyethylene and a tear-resistant layer (1122) made of glass fiber. The strengthening layer (113) includes a high-temperature resistant layer (1131) made of fire-resistant mica tape and an elastic layer (1132) made of polyolefin thermoplastic elastomer. The outer protective layer (114) includes a wear-resistant layer (1141) made of ultra-high molecular weight polyethylene and a corrosion-resistant layer (1142) made of polyvinylidene fluoride.

2. The HDMI data line for home audio - video wiring according to claim 1, wherein: The protective cover (2101) is made of transparent plastic, and both the sliding sleeve (2104) and the connecting rope (2103) are made of rubber.

3. The HDMI data cable for home audio and video wiring according to claim 1, characterized in that: One side of the joint (16) is fixedly connected with a positioning frame (17). The surface of the positioning frame (17) is in contact with the inner wall of the protective cover (2101). A metal fixing bracket (18) is fixedly installed on the surface of the joint (16) through bolts. The side of the metal fixing bracket (18) away from the joint (16) is inserted into the inner wall of the metal positioning disc (15).

4. The HDMI data cable for home audio and video wiring according to claim 1, characterized in that: The galvanized steel wire mesh weaving density of the first shielding layer (1201) is 80 - 120 meshes, and the thickness of the tin foil tape of the second shielding layer (1202) is 0.05 - 0.15 mm.

5. The HDMI data cable for home audio and video wiring according to claim 1, wherein: The polyethylene material of the anti-freezing layer (1121) is high-density polyethylene (HDPE), and the glass fiber content in the glass fiber material of the tear-resistant layer (1122) is 60% - 80%.

6. The HDMI data cable for home audio - video wiring according to claim 1, characterized in that: The fire-resistant mica tape of the high-temperature resistant layer (1131) is synthetic mica tape, and its temperature resistance grade is 800°C - 1000°C. The elongation at break of the polyolefin thermoplastic elastomer of the elastic layer (1132) is 300% - 500%.

7. The HDMI data cable for home audio - video wiring according to claim 1, characterized in that: The molecular weight of the ultra-high molecular weight polyethylene of the wear-resistant layer (1141) is 1.5 million - 4 million, and the thickness of the polyvinylidene fluoride of the corrosion-resistant layer (1142) is 0.1 - 0.3 mm.

8. The HDMI data cable for home audio and video wiring according to claim 3, characterized in that: The metal positioning disc (15) is made of stainless steel, and its surface is provided with anti-slip patterns. The insertion depth of the metal fixing bracket (18) into the metal positioning disc (15) is 3 - 5 mm.

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