Cable head fastening device for cable laying

Abstract

The invention relates to the technical field of fastening devices, and particularly discloses a cable head fastening device for cable laying. The cable head fastening device for cable laying achieves the purpose of cleaning the surface of the cable. Comprising a fastening shell, a cleaning assembly, a fastening device and a connecting mechanism, a cable is stuffed into the cleaning assembly to be cleaned and fastened, the fastening device is used for fastening the cable, the cleaning assembly cleans the surface of the cable so as to remove dust on the surface of the cable, and therefore the sealing performance of the cable after fastening is completed is ensured, and the service life of the cable is prolonged. And the connecting mechanism is used for connecting the two sections of cables, ensures stable connection and has certain sealing performance, so that water vapor is prevented from entering.

Description

Technical Field

[0001] The present invention relates to the technical field of fastening devices, and particularly to a cable head fastening device for cable laying. Background Art

[0002] A cable joint is also called a cable head; after the cable is laid, in order to make it a continuous line, each section of the wire must be connected as a whole, and these connection points are called cable joints; the cable joint in the middle of the cable line is called an intermediate joint, while the cable joints at both ends of the line are called terminal heads; the cable joint is used to lock and fix the incoming and outgoing wires, playing the role of waterproof, dustproof and anti-vibration; the main function of the cable joint is to make the line unobstructed, keep the cable sealed, and ensure the insulation level at the cable joint, so that it can operate safely and reliably; if the seal is poor, not only will oil leak and cause the oil-impregnated paper to dry out, but moisture will also invade the cable interior, reducing its insulation performance.

[0003] When the existing cable heads are fixed, they usually only tightly fix the butt joint of two cables, resulting in the cables being prone to looseness when subjected to tensile force, affecting the use, and at the same time lacking cleaning measures during connection. Summary of the Invention

[0004] To achieve the above object, the present invention is realized through the following technical solutions: A cable head fastening device for cable laying, including a fastening housing, an inner wall of the fastening housing is fixedly connected with a cleaning component, the inner wall of the fastening housing is fixedly connected with a fastening device, an end of the inner wall of the fastening housing far from the fastening housing is fixedly connected with a connection mechanism, and the fastening device is arranged between the fastening housing and the connection mechanism;

[0005] The cleaning component includes a cleaning ring, an inner wall of the cleaning ring is fixedly connected with a cleaning brush, a guiding groove is formed on a side surface of the cleaning ring, a discharging hole is formed at a position on the side surface of the cleaning ring on one side of the guiding groove, an inner wall of the cleaning ring is rotationally connected with a guiding component through a rotating pin, and a side surface of the cleaning ring is slidably connected with an inner wall of the fastening housing.

[0006] Preferably, the cleaning component further includes a guiding column, a side surface of the guiding column is fixedly connected with an inner wall of the fastening housing, and the guiding column extends into the guiding groove and is slidably connected with the guiding groove.

[0007] Preferably, the guiding assembly includes a guiding bottom plate, on the side of which an arc-shaped guiding plate is fixedly connected. On the top of the guiding bottom plate, an arc-shaped fastening strip is fixedly connected. The guiding bottom plate is rotationally connected to the inner wall of the cleaning ring through a rotating pin. The cleaning ring enters the interior of the fastening housing along the inner wall of the fastening housing under the pushing action of the cable. The guiding column is fixed on the inner wall of the fastening housing. During the movement of the cleaning ring, the cleaning ring rotates under the combined action of the guiding groove and the guiding column. The shape of the guiding groove enables the cleaning ring to rotate under the guiding action of the guiding column. At the same time, the angle of the cleaning brush enables the cleaning ring to clean the surface of the cable when rotating, increasing the cleaning intensity of the cable surface compared with traditional cleaning. At the same time, the discharge hole is used to clean and discharge dust and other substances, preventing solid substances from accumulating inside and causing the cleaning assembly and the auxiliary sealing assembly to fail.

[0008] Preferably, the fastening device includes a fastening base, the inner wall of which is rotationally connected to a fastening bottom plate through a rotating pin. At the bottom of the fastening bottom plate, a connecting column is fixedly connected, and at the bottom of the connecting column, a release strip is fixedly connected. On the top of the fastening bottom plate, a fastening block is fixedly connected. At the bottom of the inner wall of the fastening base, a first spring piece is fixedly connected, and the top of the first spring piece is fixedly connected to the bottom of the fastening bottom plate. On the side of the fastening base, a sealing assembly is fixedly connected.

[0009] Preferably, the fastening device further includes a protection frame, which is fixedly connected to the side surface of the fastening housing. The release strip is slidably connected to the inner wall of the protection frame. The connecting column penetrates through the side surface of the fastening housing, and a sliding hole adapted to the connecting column is provided on the fastening housing. The first spring piece makes the fastening block closely adhere to the surface of the cable. When the cable is subjected to an outward pulling force, the fastening block is adhered to the surface of the cable under the elastic force of the first spring piece, so as to always maintain a frictional force on the cable. The external pulling force received by the cable is transmitted to the rotating pin connected to the fastening base plate through the fastening base plate. And during the process when the cable is subjected to an external force, if the cable is pulled out under the action of the external force, at the angle set by the fastening base plate, the fastening base plate needs to drive the fastening block to rotate at a large angle along the rotating pin under the external force of the cable. However, the position of the cable is set at the top of multiple fastening blocks, making it impossible for the fastening block to rotate at a large angle, thus realizing a self-locking mechanism after the cable enters, making the cable connection firm, and increasing the frictional force of the fastening block on the cable with the increase of the pulling force under a certain pulling force. When the cable needs to be released, press the release strip, and the release strip drives the connecting column to move. The movement of the connecting column drives one end of the fastening base plate to move, and the connecting column drives the fastening base plate to rotate, making the fastening block away from the surface of the cable, thereby reducing the frictional force of the fastening block on the cable, making the cable easy to pull out. And the setting of the protection frame protects the release strip from being accidentally touched and causing accidental cable release. At the same time, the setting of multiple release strips further ensures the possibility of accidental loosening of the cable from the fastening device, increasing the safety and reliability compared with the traditional design.

[0010] Preferably, the sealing assembly includes a sealing base frame. A sealing piece is fixedly connected to the inner wall of the sealing piece. A connecting piece is fixedly connected to the side surface of the sealing base frame. A second spring piece is fixedly connected to the side surface of the connecting piece. A first limiting block is fixedly connected to the side surface of the second spring piece. A second limiting block is fixedly connected to the side of the second spring piece away from the first limiting block. A silicone rubber ring is sleeved and slidably connected to the second spring piece. The side surface of the sealing base frame is fixedly connected to the side surface of the fastening base and the inner wall of the fastening housing. The overlapping design of the sealing piece provides a deformation space for tightness compared with the traditional integral sealing ring. And the sealing condition of the cable is mainly used to prevent water vapor from entering. Therefore, the overlapping setting can meet the basic water vapor protection requirements. At the same time, the setting direction and shape of the sealing piece make it easy for the cable to enter and not easy to loosen. And the silicone rubber ring drives the second spring piece to move, so that the silicone rubber ring and the sealing piece closely adhere to the surface of the cable, making it have a certain sealing performance, thus ensuring that water vapor will not enter the interior. At the same time, the setting of the second limiting block limits the cross-section of the cable to prevent the cable from being inserted too deep during the feeding process, thus affecting the docking of the cable at the other end and ensuring the cable docking quality.

[0011] Preferably, the connecting mechanism includes a connecting frame. A first connecting ring is fixedly connected to the side surface of the connecting frame. A first limiting ring is fixedly connected to the side surface of the first connecting ring. A rubber ring is sleeved on and slidably connected to the side surface of the first connecting ring. A connecting component is sleeved on and rotatably connected to the side surface of the first limiting ring. The side surface of the connecting frame is fixedly connected to the inner wall of the fastening housing. Threaded connecting rings are fixedly connected to the side surfaces of multiple groups of the connecting frames. The inner wall of the connecting component is threadedly connected to the side surface of the threaded connecting ring.

[0012] Preferably, the connecting component includes a second connecting ring. Threads adapted to the threaded connecting ring are fixedly connected to the inner wall of the second connecting ring. A second limiting ring is fixedly connected to the side of the second connecting ring away from the threads. A connecting sleeve ring is fixedly connected to the side surface of the second limiting ring.

[0013] Preferably, the connecting sleeve ring is sleeved on the side surface of the first connecting ring and is slidably connected to the first connecting ring. The second connecting ring is sleeved on the side surface of the first limiting ring and is slidably connected to the first limiting ring. When the second connecting ring rotates, the threads are sleeved on the surface of the threaded connecting ring, so that the two sections of cables are docked. When the second connecting ring rotates on the surface of the threaded connecting ring, the second limiting ring drives the rubber ring to closely adhere to the side surfaces of the first limiting ring and the connecting sleeve ring, so that the connection part maintains a certain sealing state. And due to the material of the rubber ring, it has a certain elasticity after the connection is completed to prevent the connection from loosening. At the same time, the second connecting ring rotates relative to the first connecting ring, so that the cable does not need to rotate. At the same time, the threaded connection is more stable than the traditional connection method.

[0014] The present invention provides a cable head fastening device for cable laying. It has the following beneficial effects:

[0015] 1. For this cable head fastening device for cable laying, a cleaning ring enters the interior of the fastening housing along the inner wall of the fastening housing under the pushing action of the cable. The guiding columns are fixed on the inner wall of the fastening housing. During the movement of the cleaning ring, the cleaning ring rotates under the combined action of the guiding groove and the guiding column. The shape of the guiding groove enables the cleaning ring to rotate under the guiding action of the guiding column. At the same time, the angle of the cleaning brush enables the cleaning ring to clean the surface of the cable when rotating. Compared with the traditional cleaning, the cleaning strength of the cable surface is increased. At the same time, the discharge hole is used to clean and discharge dust and other substances, avoiding the accumulation of solid substances inside, which may cause the cleaning component and the auxiliary sealing component to fail.

[0016] 2. The cable head fastening device for cable laying is provided with a first spring piece to make the fastening block closely adhere to the cable surface. When the cable is subjected to an outward pulling force, the fastening block is attached to the cable surface under the elastic force of the first spring piece, so as to always maintain frictional force on the cable. The external pulling force received by the cable is transmitted to the rotating pin connected to the fastening bottom plate through the fastening bottom plate. And during the process when the cable is subjected to external force, if the cable is pulled out under the action of the external force, at the angle set on the fastening bottom plate, the fastening bottom plate needs to drive the fastening block to rotate at a large angle along the rotating pin under the external force of the cable. However, the position of the cable is set at the top of multiple fastening blocks, making it impossible for the fastening block to rotate at a large angle, thus realizing a self-locking mechanism after the cable enters, making the cable connection firm, and increasing the frictional force of the fastening block on the cable with the increase of the pulling force under a certain pulling force. When the cable needs to be released, press the release bar. The release bar drives the connecting column to move. The movement of the connecting column drives one end of the fastening bottom plate to move. The connecting column drives the fastening bottom plate to rotate, making the fastening block away from the cable surface, thus reducing the frictional force of the fastening block on the cable, making the cable easy to pull out. And the setting of the protection frame protects the release bar from being accidentally touched and causing accidental cable release. At the same time, the setting of multiple release bars further ensures the possibility of the cable accidentally loosening from the fastening device, increasing safety and reliability compared with the traditional design.

[0017] 3. The cable head fastening device for cable laying is provided with an overlapping tile design of the sealing piece, which provides a deformation space for tightness compared with the traditional integral sealing ring. And the sealing condition of the cable is mainly used to prevent water vapor from entering. Therefore, the overlapping tile setting can meet the basic water vapor protection requirements. At the same time, the setting direction and shape of the sealing piece make it easy for the cable to enter and not easy to loosen. And the silicone rubber ring drives the second spring piece to move, so that the silicone rubber ring and the sealing piece closely adhere to the cable surface, making it have a certain sealing property, thus ensuring that water vapor will not enter the interior. At the same time, the setting of the second limiting block limits the cross-section of the cable to prevent the cable from being inserted too deep during the feeding process, which affects the docking of the cable at the other end, and ensures the cable docking quality.

[0018] 4. The cable head fastening device for cable laying is provided with a second connecting ring. The rotation of the second connecting ring drives the threaded sleeve to be sleeved on the surface of the threaded connecting ring, so as to complete the docking of two sections of cables. When the second connecting ring rotates on the surface of the threaded connecting ring, the second limiting ring drives the rubber ring to closely adhere to the side surfaces of the first limiting ring and the connecting sleeve ring, so as to keep the connection part in a certain sealed state. And due to the material of the rubber ring, it has a certain elasticity after the connection is completed to prevent the connection from loosening. At the same time, the second connecting ring rotates relative to the first connecting ring, so that the cable does not need to rotate. At the same time, the threaded connection is more stable than the traditional connection method. Description of the Drawings

[0019] Figure 1 This is a front - view structural schematic diagram of the cable - head fastening device for cable laying in the present invention;

[0020] Figure 2 This is a back - view structural schematic diagram of the cable - head fastening device for cable laying in the present invention;

[0021] Figure 3 This is a structural schematic diagram of the cleaning component in the present invention;

[0022] Figure 4 This is a structural schematic diagram of the guiding component in the present invention;

[0023] Figure 5 This is a structural schematic diagram of the fastening device in the present invention;

[0024] Figure 6 This is a partial - view structural schematic diagram of the fastening device in the present invention;

[0025] Figure 7 This is an internal - view structural schematic diagram of the fastening device in the present invention;

[0026] Figure 8 This is a structural schematic diagram of the sealing component in the present invention;

[0027] Figure 9 This is a structural schematic diagram of the sealing piece in the present invention;

[0028] Figure 10 This is a structural schematic diagram of the connecting mechanism in the present invention;

[0029] Figure 11 This is a structural schematic diagram of the threaded connecting ring in the present invention;

[0030] Figure 12 This is a structural schematic diagram of the connecting component in the present invention.

[0031] In the figure: 1. Fastening housing; 2. Cleaning assembly; 3. Fastening device; 4. Connection mechanism; 201. Cleaning ring; 202. Cleaning brush; 203. Guide groove; 204. Guide post; 205. Discharge hole; 206. Guide assembly; 2061. Guide bottom plate; 2062. Arc-shaped guide plate; 2063. Arc-shaped fastening strip; 301. Fastening base; 302. Fastening bottom plate; 303. Connection column; 304. Release strip; 305. Fastening block; 306. First spring piece; 307. Sealing assembly; 308. Protection frame; 3071. Sealing bottom frame; 3072. Sealing piece; 3073. Connection piece; 3074. Second spring piece; 3075. First limit block; 3076. Second limit block; 3077. Silicone rubber ring; 401. Connection frame; 402. First connection ring; 403. First limit ring; 404. Rubber ring; 405. Connection assembly; 406. Threaded connection ring; 4051. Second connection ring; 4052. Thread; 4053. Second limit ring; 4054. Connection sleeve ring. Detailed implementation mode

[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.

[0033] Please refer to Figures 1 - 4 , the present invention provides a technical solution: a cable head fastening device for cable laying. It includes a fastening housing 1, the inner wall of the fastening housing 1 is fixedly connected with a cleaning assembly 2, the inner wall of the fastening housing 1 is fixedly connected with a fastening device 3, and one end of the inner wall of the fastening housing 1 away from the fastening housing 1 is fixedly connected with a connection mechanism 4. The fastening device 3 is arranged between the fastening housing 1 and the connection mechanism 4;

[0034] Working principle: The cable is inserted into the interior of the fastening housing 1 through the cleaning assembly 2 and is cleaned and fastened. The fastening device 3 is used to fasten the cable, and the cleaning assembly 2 cleans the surface of the cable to remove the dust on the surface of the cable, so as to ensure the sealing performance after the cable is fastened. The connection mechanism 4 is used to connect two sections of cables, and at the same time ensure stable connection and certain sealing performance, so as to prevent the entry of water vapor.

[0035] The cleaning assembly 2 includes a cleaning ring 201. A cleaning brush 202 is fixedly connected to the inner wall of the cleaning ring 201. A guiding groove 203 is formed in the side surface of the cleaning ring 201. A discharging hole 205 is formed in the side surface of the cleaning ring 201 at a position on one side of the guiding groove 203. A guiding assembly 206 is rotatably connected to the inner wall of the cleaning ring 201 through a rotating pin. The side surface of the cleaning ring 201 is slidably connected to the inner wall of the fastening housing 1.

[0036] The cleaning assembly 2 further includes a guiding post 204. The side surface of the guiding post 204 is fixedly connected to the inner wall of the fastening housing 1. The guiding post 204 extends into the guiding groove 203 and is slidably connected to the guiding groove 203.

[0037] The guiding assembly 206 includes a guiding bottom plate 2061. An arc-shaped guiding plate 2062 is fixedly connected to the side surface of the guiding bottom plate 2061. An arc-shaped fastening strip 2063 is fixedly connected to the top of the guiding bottom plate 2061. The guiding bottom plate 2061 is rotatably connected to the inner wall of the cleaning ring 201 through a rotating pin.

[0038] Working principle: The cable is inserted into the cleaning ring 201. The guiding function of the arc-shaped guiding plate 2062 makes it easy for the cable to be fed into the inner wall of the cleaning ring 201. The cross-section of the cable is often a smooth cross-section. The guiding function of the arc-shaped guiding plate 2062 facilitates the cable to be fed into the cleaning ring 201. After the cable is fed into the cleaning ring 201, the arc-shaped fastening strip 2063 rotates along the rotating pin on the guiding bottom plate 2061 under the action of the cable, so that the arc-shaped fastening strip 2063 plays a certain braking role on the surface of the cable. During the process of the cable entering, the cleaning ring 201 enters the fastening housing 1 along the inner wall of the fastening housing 1 under the pushing action of the cable. The guiding post 204 is fixed to the inner wall of the fastening housing 1. During the movement of the cleaning ring 201, the cleaning ring 201 rotates under the combined action of the guiding groove 203 and the guiding post 204. The shape of the guiding groove 203 enables the cleaning ring 201 to rotate under the guiding action of the guiding post 204. At the same time, the set angle of the cleaning brush 202 enables the cleaning ring 201 to clean the surface of the cable when rotating, increasing the cleaning strength of the cable surface compared with the traditional cleaning. At the same time, the discharging hole 205 is used to clean and discharge dust and other substances, avoiding the accumulation of solid substances inside, which may cause the cleaning assembly and the auxiliary sealing assembly to fail.

[0039] Please refer to Figures 1 - 7, the present invention provides a technical solution: The fastening device 3 includes a fastening base 301, the inner wall of the fastening base 301 is rotatably connected to a fastening bottom plate 302 through a rotating pin, a connecting column 303 is fixedly connected to the bottom of the fastening bottom plate 302, a release strip 304 is fixedly connected to the bottom of the connecting column 303, a fastening block 305 is fixedly connected to the top of the fastening bottom plate 302, a first spring piece 306 is fixedly connected to the bottom of the inner wall of the fastening base 301, the top of the first spring piece 306 is fixedly connected to the bottom of the fastening bottom plate 302, and a sealing assembly 307 is fixedly connected to the side of the fastening base 301.

[0040] The fastening device 3 further includes a protection frame 308, the protection frame 308 is fixedly connected to the side of the fastening housing 1, the release strip 304 is slidably connected to the inner wall of the protection frame 308, the connecting column 303 penetrates through the side of the fastening housing 1, and a sliding hole adapted to the connecting column 303 is provided on the fastening housing 1.

[0041] Working principle: When the cable enters the interior of the fastening base 301, as the cable passes through the surface of the fastening block 305, the grooved design on the surface of the fastening block 305 causes the fastening block 305 to move downward under the driving action of the cable. The downward movement of the fastening block 305 drives the fastening bottom plate 302 to rotate along the rotating pin. The position where the rotating pin is set is away from the bottom of the fastening block 305, making it easy for the fastening block 305 to rotate downward, facilitating the cable to enter the interior of the fastening base 301. When the cable enters the designated position and is blocked by the sealing assembly 307, the elasticity of the first spring piece 306 causes the top of the fastening block 305 to closely adhere to the surface of the cable. Moreover, the pattern design on the top of the fastening block 305 is conducive to enhancing the friction force, and under the action of the first spring piece 306, the fastening block 305 closely adheres to the cable surface. When the cable is subjected to an outward pulling force, the fastening block 305 is attached to the cable surface under the elastic force of the first spring piece 306, thereby always maintaining friction with the cable. The external pulling force received by the cable is transmitted through the fastening bottom plate 302 to the rotating pin connected to the fastening bottom plate 302. And during the process when the cable is subjected to an external force, if the cable is pulled out under the action of the external force, at the angle set by the fastening bottom plate 302, the fastening bottom plate 302 needs to drive the fastening block 305 to rotate at a large angle along the rotating pin under the external force of the cable. However, the position of the cable is set on the top of multiple fastening blocks 305, making it impossible for the fastening block 305 to rotate at a large angle, thus realizing a self-locking mechanism after the cable enters, making the cable connection firm, and under a certain pulling force, the friction force of the fastening block 305 on the cable will increase with the increase of the pulling force. When the cable needs to be released, press the release bar 304. The release bar 304 drives the connecting column 303 to move. The movement of the connecting column 303 drives one end of the fastening bottom plate 302 to move. The connecting column 303 drives the fastening bottom plate 302 to rotate, causing the fastening block 305 to move away from the cable surface, thereby reducing the friction force of the fastening block 305 on the cable, making it easy to pull out the cable. And the setting of the protection frame 308 protects the release bar 304 from being accidentally touched, resulting in accidental cable release. At the same time, the setting of multiple release bars 304 further ensures the possibility of the cable accidentally loosening from the fastening device, increasing the safety and reliability compared with the traditional design.

[0042] Please refer to Figures 1 - 9, the present invention provides a technical solution: The sealing assembly 307 includes a sealing base frame 3071, the inner wall of the sealing piece 3072 is fixedly connected to the sealing piece 3072, the side of the sealing base frame 3071 is fixedly connected to a connecting piece 3073, the side of the connecting piece 3073 is fixedly connected to a second spring piece 3074, the side of the second spring piece 3074 is fixedly connected to a first limiting block 3075, the side of the second spring piece 3074 away from the first limiting block 3075 is fixedly connected to a second limiting block 3076, a silicone rubber ring 3077 is sleeved and slidably connected on the second spring piece 3074, and the side of the sealing base frame 3071 is fixedly connected to the side of the fastening base 301 and the inner wall of the fastening housing 1.

[0043] Working principle: When the cable enters, the surface of the cable is wrapped by the sealing piece 3072. At the same time, the material of the silicone rubber ring 3077 ensures long-term elasticity in a closed space. At the same time, the first limiting block 3075 limits the silicone rubber ring 3077 to prevent the cable from loosening during the feeding process. The overlapping tile design of the sealing piece 3072 provides a deformation space for tightness compared to traditional integral sealing rings. And the sealing condition of the cable is mainly used to prevent water vapor from entering. Therefore, the overlapping tile setting can meet the basic water vapor protection requirements. At the same time, the direction and shape of the sealing piece 3072 make it easy for the cable to enter and not easy to loosen. And the silicone rubber ring 3077 drives the second spring piece 3074 to move, so that the silicone rubber ring 3077 and the sealing piece 3072 are closely attached to the surface of the cable, making it have a certain sealing performance, thus ensuring that water vapor will not enter the interior. At the same time, the setting of the second limiting block 3076 limits the cross-section of the cable to prevent the cable from being fed too deep during the feeding process, which affects the docking of the cable at the other end, and at the same time ensures the cable docking quality.

[0044] Please refer to Figures 1 - 12, the present invention provides a technical solution: The connecting mechanism 4 includes a connecting frame 401. A first connecting ring 402 is fixedly connected to the side surface of the connecting frame 401. A first limiting ring 403 is fixedly connected to the side surface of the first connecting ring 402. A rubber ring 404 is sleeved and slidably connected to the side surface of the first connecting ring 402. A connecting component 405 is sleeved and rotatably connected to the side surface of the first limiting ring 403. The side surface of the connecting frame 401 is fixedly connected to the inner wall of the fastening housing 1. Threaded connecting rings 406 are fixedly connected to the side surfaces of multiple groups of the connecting frames 401. The inner wall of the connecting component 405 is threadedly connected to the side surface of the threaded connecting ring 406. The connecting component 405 includes a second connecting ring 4051. A thread 4052 adapted to the threaded connecting ring 406 is fixedly connected to the inner wall of the second connecting ring 4051. A second limiting ring 4053 is fixedly connected to the side of the second connecting ring 4051 away from the thread 4052. A connecting sleeve ring 4054 is fixedly connected to the side surface of the second limiting ring 4053. The connecting sleeve ring 4054 is sleeved on the side surface of the first connecting ring 402 and is slidably connected to the first connecting ring 402. The second connecting ring 4051 is sleeved on the side surface of the first limiting ring 403 and is slidably connected to the first limiting ring 403.

[0045] Working principle: After the cable is introduced, manually rotate the second connecting ring 4051. The second connecting ring 4051 rotates to drive the thread 4052 to be sleeved on the surface of the threaded connecting ring 406, so that the two sections of the cable are completed for butt joint. When the second connecting ring 4051 rotates on the surface of the threaded connecting ring 406, the second limiting ring 4053 drives the rubber ring 404 to closely adhere to the side surface of the first limiting ring 403 and the side surface of the connecting sleeve ring 4054, so that the connection part maintains a certain sealing state. And due to the material of the rubber ring 404, it has a certain elasticity after the connection is completed to prevent the connection from loosening. At the same time, the second connecting ring 4051 rotates relative to the first connecting ring 402, so that the cable does not need to rotate. At the same time, the threaded connection is more stable than the traditional connection method.

[0046] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A cable head fastening device for cable laying, comprising a fastening shell (1), a cleaning assembly (2) being fixedly connected to the inner wall of the fastening shell (1), a fastening device (3) being fixedly connected to the inner wall of the fastening shell (1), and a connecting mechanism (4) being fixedly connected to one end of the inner wall of the fastening shell (1) away from the fastening device (3), characterized in that: The fastening device (3) is arranged between the cleaning component (2) and the connecting mechanism (4); The cleaning assembly (2) comprises a cleaning ring (201), the inner wall of the cleaning ring (201) is fixedly connected to a cleaning brush (202), a side surface of the cleaning ring (201) is provided with a guide groove (203), a side surface of the cleaning ring (201) is provided with a discharge hole (205) at a position on one side of the guide groove (203), the inner wall of the cleaning ring (201) is rotatably connected to a guide assembly (206) via a rotating pin, and the side surface of the cleaning ring (201) is slidably connected to the inner wall of the fastening shell (1).

2. A cable head fastening device for cable laying according to claim 1, characterized in that: The cleaning assembly (2) further comprises a guide column (204), the side surface of which is fixedly connected to the inner wall of the fastening shell (1), and the guide column (204) extends into the interior of the guide groove (203) and is slidably connected to the guide groove (203).

3. A cable head fastening device for cable laying according to claim 2, characterized in that: The guide assembly (206) comprises a guide base plate (2061), a side of the guide base plate (2061) is fixedly connected to an arc-shaped guide plate (2062), a top of the guide base plate (2061) is fixedly connected to an arc-shaped fastening strip (2063), and the guide base plate (2061) is rotatably connected to the inner wall of the cleaning ring (201) via a rotating pin.

4. A cable head fastening device for cable laying according to claim 1, characterized in that: The fastening device (3) comprises a fastening base (301), the inner wall of the fastening base (301) is rotatably connected to a fastening bottom plate (302) via a rotating pin, the bottom of the fastening bottom plate (302) is fixedly connected to a connecting column (303), the bottom of the connecting column (303) is fixedly connected to a release strip (304), the top of the fastening bottom plate (302) is fixedly connected to a fastening block (305), the bottom of the inner wall of the fastening base (301) is fixedly connected to a first spring sheet (306), the top of the first spring sheet (306) is fixedly connected to the bottom of the fastening bottom plate (302), and the inner side of the fastening base (301) is fixedly connected to a sealing assembly (307).

5. A cable head fastening device for cable laying according to claim 4, characterized in that: The fastening device (3) further comprises a protection frame (308), wherein the protection frame (308) is fixedly connected to the side of the fastening shell (1), the release strip (304) is slidably connected to the inner wall of the protection frame (308), the connecting column (303) passes through the side of the fastening shell (1), and the fastening shell (1) is provided with a sliding hole adapted to the connecting column (303).

6. A cable head fastening device for cable laying according to claim 4, characterized in that: The sealing assembly (307) comprises a sealing base frame (3071), the inner wall of the sealing base frame (3071) is fixedly connected with a sealing sheet (3072), the side of the sealing base frame (3071) is fixedly connected with a connecting sheet (3073), the side of the connecting sheet (3073) is fixedly connected with a second spring sheet (3074), the side of the second spring sheet (3074) is fixedly connected with a first limiting block (3075), the side of the second spring sheet (3074) away from the first limiting block (3075) is fixedly connected with a second limiting block (3076), a silicone rubber ring (3077) is sleeved on and slidably connected to the second spring sheet (3074), and the side of the sealing base frame (3071) is fixedly connected to the side of the fastening base (301) and the inner wall of the fastening shell (1).

7. A cable head fastening device for cable laying according to claim 1, characterized in that: The connecting mechanism (4) comprises a connecting frame (401), a first connecting ring (402) being fixedly connected to a side surface of the connecting frame (401), a first limiting ring (403) being fixedly connected to a side surface of the first connecting ring (402), a rubber ring (404) being sleeved and slidably connected to a side surface of the first connecting ring (402), a connecting assembly (405) being sleeved and rotatably connected to a side surface of the first limiting ring (403), a side surface of the connecting frame (401) being fixedly connected to an inner wall of a fastening shell (1), a plurality of groups of threaded connecting rings (406) being fixedly connected to the side surfaces of the connecting frame (401), and an inner wall of the connecting assembly (405) being threadedly connected to a side surface of the threaded connecting ring (406).

8. A cable head fastening device for cable laying according to claim 7, characterized in that: The connecting assembly (405) comprises a second connecting ring (4051), the inner wall of the second connecting ring (4051) is provided with a thread (4052) adapted to the threaded connecting ring (406), a second limiting ring (4053) is fixedly connected to the side of the second connecting ring (4051) away from the thread (4052), and a connecting collar (4054) is fixedly connected to the side of the second limiting ring (4053).

9. A cable head fastening device for cable laying according to claim 8, characterized in that: The connecting ring (4054) is sleeved on the side of the first connecting ring (402) and is slidably connected to the first connecting ring (402), and the second connecting ring (4051) is sleeved on the side of the first limiting ring (403) and is slidably connected to the first limiting ring (403).

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