Cable fixing anchor head, pushing rod and cable laying device

Abstract

The application relates to a cable fixing anchor head, a pushing rod and a cable laying device. The cable fixing anchor head comprises a cable mounting component and a positioning component. The cable mounting component is provided with a cable. The positioning component comprises an anchor jaw assembly and a transmission assembly in transmission cooperation with the anchor jaw assembly. The transmission assembly comprises a connecting cooperation part which is configured to be locked with an electric control locking cooperation part or to be unlocked and separated from each other. By arranging the positioning component, the connecting cooperation part is locked with the electric control locking cooperation part during lowering, the locking cooperation part drives the transmission assembly to operate so as to drive the anchor jaw assembly to move, thereby enabling the anchor jaw assembly to be in a retracted state, so as to facilitate lowering of the cable mounting component to a set position. After the cable mounting component is lowered to the set position, the connecting cooperation part is unlocked and separated from the electric control locking cooperation part, the anchor jaw assembly is in an open state, the anchor jaw assembly can be embedded in the sidewall of a deep hole, and the positioning effect of the cable can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical fiber laying, in particular to a cable fixing anchor head, a pushing rod and a cable laying device. BACKGROUND

[0002] In the foundation pit detection, the structure strain is measured by the distributed optical fiber sensing technology, and the deformation of the retaining pile in the excavation process of the foundation pit can be monitored in real time, which has safety monitoring significance for the excavation and protection of the foundation pit.

[0003] Compared with the traditional deformation analysis of the retaining pile by the inclinometer detection, the distributed optical fiber sensing monitoring has the same advantages in the fields of landslide and dam detection. In order to realize the state monitoring of the foundation pit, the distributed optical fiber needs to be laid in the deep hole opened on the foundation pit. The common laying method is to fix the counterweight on the distributed optical fiber, put the counterweight into the deep hole, then pull the distributed optical fiber, and use the gravity of the counterweight or the pushing rod to lower the distributed optical fiber into the deep hole; after the counterweight is lowered to the bottom of the hole, if the pushing rod is used, the pushing rod can be retracted, and the distributed optical fiber in the deep hole is kept straight under a certain tension, and then the cement mortar is filled into the deep hole according to the needs, and the laying is completed.

[0004] The above laying method depends on the weight of the counterweight, but in some cases, the weight of the counterweight is too light, which makes it difficult to lower, or the counterweight at the bottom of the hole is pulled up when the distributed optical fiber is kept straight under a certain tension, which causes unstable position and affects the laying effect. SUMMARY

[0005] Therefore, it is necessary to provide a cable fixing anchor head, a pushing rod and a cable laying device which can ensure the positioning effect of the cable, are simple to operate, reduce the laying difficulty and ensure the success rate of laying.

[0006] The first aspect of the present application provides a cable fixing anchor head, comprising:

[0007] A cable mounting component configured to load a cable to be pulled into a deep hole;

[0008] A positioning component connected to the cable mounting component, the positioning component comprising an anchor jaw assembly and a transmission assembly in transmission cooperation with the anchor jaw assembly, the transmission assembly comprising a connection cooperation part configured to be locked with an electrically controlled locking cooperation part or to be unlocked with each other;

[0009] In the state that the connecting fitting part and the electrically controlled locking fitting part are locked, the electrically controlled locking fitting part can drive the transmission assembly to drive the anchor assembly to switch from the open state to the retracted state; in the state that the connecting fitting part and the electrically controlled locking fitting part are unlocked, the anchor assembly is in the open state.

[0010] In one of the embodiments, the positioning part further comprises a frame body, the frame body is connected with the cable mounting part, the anchor assembly and the transmission assembly are movably arranged in the frame body, the transmission assembly further comprises a transmission fitting part which is in transmission connection with the anchor assembly, the transmission assembly can reciprocally move between a first position and a second position.

[0011] In the state that the transmission assembly is in the first position, the transmission fitting part drives the anchor assembly to be in the retracted state, in the state that the transmission assembly is in the second position, the anchor assembly is in the open state.

[0012] In one of the embodiments, the frame body is provided with an opening, the moving direction of the transmission assembly is substantially parallel to the direction of the opening, the connecting fitting part is arranged or formed at one end of the transmission assembly which faces the opening.

[0013] In one of the embodiments, the frame body comprises an anti-rotation part which is configured to limit the transmission assembly from rotating relative to the push rod.

[0014] In one of the embodiments, the anti-rotation part is the opening provided in the frame body, in the plane which is perpendicular to the direction of the opening, the projection of the opening is a non-rotationally symmetric figure.

[0015] In one of the embodiments, the transmission fitting part has a first through hole, the frame body has a second through hole which is in communication with the first through hole, the anchor assembly has an anchor claw, one end of the anchor claw is hinged to the frame body, and the other end is arranged in the first through hole and the second through hole.

[0016] In the state that the transmission assembly is in the first position, the first through hole can limit the anchor claw to be in the retracted state.

[0017] In one of the embodiments, the transmission assembly further comprises:

[0018] A reset member which is arranged in the frame body and is in transmission connection with the anchor assembly, the reset member is configured to provide a reset force which tends to keep the anchor assembly in the open state.

[0019] In one of the embodiments, the reset member is a torsion spring, the anchor assembly comprises:

[0020] a plurality of anchors, each anchor comprising a first end hingedly connected to the frame body by a pivot, and a second end extended out of the frame body in an open state, the anchors being elastically coupled with the torsion spring to rotate around the pivot to the open state under the elastic restoring force of the torsion spring.

[0021] In one embodiment, the electrically controlled locking component comprises a rotatable driving screw, and the connection component comprises an internal thread structure threadedly coupled with the screw to be locked with the connection component by thread rotation; or,

[0022] The electrically controlled locking component comprises an electromagnetic attraction member, and the connection component comprises an adsorption matching structure capable of being adsorbed by the electromagnetic attraction member to be locked with the connection component by magnetic force or to be mutually unlocked with the connection component by eliminating the magnetic force, the magnetic force being permanent magnetic force or electromagnetic force of the electromagnetic attraction member.

[0023] The second aspect of the present application provides a pushing rod, comprising:

[0024] a rod body;

[0025] an electrically controlled locking component arranged in the rod body, the electrically controlled locking component comprising a locking connection part configured to be locked with a connection component of a cable fixing anchor head as described above or to be mutually unlocked.

[0026] In one embodiment, the connection component comprises an internal thread structure, and the electrically controlled locking component comprises a rotatable driving screw configured to be threadedly coupled with the internal thread structure to be locked with the connection component; or,

[0027] The electrically controlled locking component comprises an electromagnetic attraction member, and the connection component comprises an adsorption matching structure capable of being adsorbed by the electromagnetic attraction member to be locked with the connection component by magnetic force or to be mutually unlocked with the connection component by eliminating the magnetic force, the magnetic force being permanent magnetic force or electromagnetic force of the electromagnetic attraction member.

[0028] And / or, the positioning component has an anti-rotation part, and the pushing rod further comprises:

[0029] an anti-rotation member arranged in the electrically controlled locking component and / or the rod body, the anti-rotation member being configured to be matched with the anti-rotation part to prevent the positioning component from rotating.

[0030] In one embodiment, an electric wire is arranged in the rod body and electrically connected with the electrically controlled locking component.

[0031] In one of the embodiments, the rod body comprises a plurality of detachably connected link single bodies, and each of the link single bodies is provided with an electric wire single section. The electric wire single sections in two adjacent link single bodies are pluggably electrically connected to form the electric wire.

[0032] A third aspect of the present application provides a cable laying device, comprising:

[0033] The cable fixing anchor head as described above, and the push rod as described above.

[0034] In the above scheme, the cable fixing anchor head is provided with a positioning component. When being lowered, the connecting fitting part is locked and connected with the electric control locking fitting component. The electric control locking fitting component drives the transmission assembly to operate, so as to drive the anchor claw assembly to move, so that the anchor claw assembly is in a retracted state, so as to smoothly lower the cable installation component to a set position in the deep hole, avoid the anchor claw assembly from being clamped and in frictional contact with the deep hole, and the cable installation component can have a traction effect on the cable to be pulled into the deep hole. After the cable installation component is transported to the set position in the deep hole, the connecting fitting part and the electric control locking fitting component are unlocked and separated from each other, and then the anchor claw assembly is in an open state, so that the anchor claw assembly can be embedded in the sidewall of the deep hole, thereby realizing clamping and ensuring the positioning effect of the cable in the deep hole. The operation is simple, the laying difficulty is low, and the success rate of laying is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 A structure sectional view of an anchor claw assembly of the cable fixing anchor head in a retracted state according to an embodiment of the present application;

[0036] Figure 2 A structure sectional view of an anchor claw assembly of the cable fixing anchor head in an open state according to an embodiment of the present application;

[0037] Figure 3 A structure schematic view of the cable fixing anchor head according to an embodiment of the present application;

[0038] Figure 4 A structure sectional view of the push rod according to an embodiment of the present application;

[0039] Figure 5 A structure schematic view of the push rod according to an embodiment of the present application;

[0040] Figure 6 A structure sectional view of the cable laying device according to an embodiment of the present application;

[0041] Figure 7 A structure schematic view of the cable laying device according to an embodiment of the present application;

[0042] Figure 8Structure schematic diagram of cable routing device shown in another embodiment of the present application.

[0043] Legend of reference signs

[0044] 10, cable fixing anchor head; 100, cable mounting component; 110, pulley; 120, loading shell; 130, cable limiting pin; 200, positioning component; 210, anchor claw assembly; 211, anchor claw; 220, transmission assembly; 221, connecting matching part; 222, transmission matching part; 2221, first through hole; 230, frame body; 231, second through hole; 240, four-bar linkage structure; 250, reset member; 300, pushing rod; 310, rod body; 320, electric control locking matching component; 321, screw rod; 322, motor; 330, electric wire; 340, clamping nut; 350, screw thread; 360, anti-rotation member; 370, first plug; 380, second plug; 400, cable routing device. DETAILED DESCRIPTION

[0045] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0046] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0047] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0048] In the present application, unless specifically defined otherwise, if there is an appearance of the terms "installation", "connection", "connection", "fixation" and the like, these terms should be interpreted in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] In the present application, unless specifically defined otherwise, if there is a similar description of the first feature "on" or "below" the second feature, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the second feature, or only indicate that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the second feature, or only indicate that the first feature is lower than the second feature in horizontal height.

[0050] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and are not the only embodiment.

[0051] Referring to Figures 1 to 3 , an embodiment of the present application provides a cable fixing anchor head 10 for fixing the position of the cable in a deep hole. The cable can be a sensing optical fiber for monitoring soil strain or temperature change, more specifically a armored distributed optical fiber. The cable fixing anchor head 10 includes a cable mounting component 100 and a positioning component 200, the cable mounting component 100 is configured to load the cable to be pulled into the deep hole. The positioning component 200 is connected to the cable mounting component 100. Exemplarily, the positioning component 200 can be provided above the cable mounting component 100, and the positioning component 200 can also be provided below the cable mounting component 100, which is not specifically limited in this embodiment. In the present embodiment, the positioning component 200 is provided above the cable mounting component 100, and the positioning component 200 is fixedly connected with the cable mounting component 100.

[0052] Referring to Figure 1 , Figure 2 andFigure 6 The positioning component 200 comprises an anchor jaw assembly 210 and a transmission assembly 220 in transmission cooperation with the anchor jaw assembly 210, and the transmission assembly 220 comprises a connection cooperation part 221 configured to be locked with the electrically controlled locking cooperation component 320 or to be unlocked with each other. The electrically controlled locking cooperation component 320 can drive the transmission assembly 220 to drive the anchor jaw assembly 210 to switch between the expanded state and the retracted state. In the state that the connection cooperation part 221 is locked with the electrically controlled locking cooperation component 320, the electrically controlled locking cooperation component 320 can drive the transmission assembly 220 to drive the anchor jaw assembly 210 to switch from the expanded state to the retracted state. In the state that the connection cooperation part 221 is unlocked with the electrically controlled locking cooperation component 320, the anchor jaw assembly 210 is in the expanded state.

[0053] It should be noted that: after the cable installation component 100 is lowered to the set position in the deep hole, the electrically controlled locking cooperation component 320 drives the transmission assembly 220 to operate to drive the anchor jaw assembly 210 to move, so that the anchor jaw assembly 210 is in the expanded state, and then the connection cooperation part 221 is unlocked with the electrically controlled locking cooperation component 320. Alternatively, after the connection cooperation part 221 is unlocked with the electrically controlled locking cooperation component 320, the anchor jaw assembly 210 is switched from the retracted state to the expanded state.

[0054] By arranging the positioning component 200, in the lowering process, the connection cooperation part 221 is locked with the electrically controlled locking cooperation component 320, the electrically controlled locking cooperation component 320 drives the transmission assembly 220 to operate to drive the anchor jaw assembly 210 to move, so that the anchor jaw assembly 210 is in the retracted state, so as to smoothly lower the cable installation component 100 to the set position in the deep hole, avoid the anchor jaw assembly 210 and the deep hole from being clamped and in frictional contact, and at the same time, the cable installation component 100 plays a traction effect on the cable to be pulled into the deep hole. After the cable installation component 100 is lowered to the set position in the deep hole, the connection cooperation part 221 is unlocked with the electrically controlled locking cooperation component 320, and the anchor jaw assembly 210 is in the expanded state, so that the anchor jaw assembly 210 can be embedded in the sidewall of the deep hole, thereby realizing clamping and ensuring the positioning effect of the cable, reducing the difficulty of laying and ensuring the success rate of laying.

[0055] The cable fixing anchor head 10 of the embodiment of the present application will be described in detail below with reference to the drawings.

[0056] Please refer to Figure 1 , Figure 2 and Figure 6According to some embodiments of the present application, the positioning component 200 further comprises a frame 230, the frame 230 is connected with the cable mounting component 100, and the anchor claw assembly 210 and the transmission assembly 220 are movably arranged on the frame 230. For example, the frame 230 can be a housing with a receiving cavity, or the frame 230 can be a support with mounting points for the anchor claw assembly 210 and the transmission assembly 220, which are not limited herein.

[0057] It should be noted that the anchor claw assembly 210 can be arranged on one side of the frame 230, or on both sides of the frame 230, which are not limited herein. Preferably, the anchor claw assembly 210 is arranged on both sides of the frame 230 to ensure that the anchor claw assembly 210 has sufficient gripping force to position the cable.

[0058] Referring to Figure 1 , Figure 2 and Figure 3 , according to some embodiments of the present application, the frame 230 is a housing with an open end, the moving direction of the transmission assembly 220 is generally parallel to the direction of the open end, and the connection matching part 221 is arranged or formed on the end of the transmission assembly 220 facing the open end. Specifically, the moving direction of the transmission assembly 220 is the same as the extension direction of the deep hole. By arranging or forming the connection matching part 221 on the end of the transmission assembly 220 facing the open end, the connection matching part 221 and the electrically controlled locking matching part 320 of the push rod 300 can be locked or unlocked.

[0059] Further, the frame 230 comprises an anti-rotation part configured to limit the rotation of the transmission assembly 220 relative to the push rod 300. Specifically, the anti-rotation part is an opening formed on the frame 230, and the projection of the opening on a plane perpendicular to the direction of the opening is a non-rotationally symmetric figure. The opening can be square.

[0060] Referring to Figure 1 , Figure 2 and Figure 3 , according to some embodiments of the present application, the transmission assembly 220 further comprises a transmission matching part 222 in transmission connection with the anchor claw assembly 210, and the transmission assembly 220 can reciprocally move between a first position and a second position. When the transmission assembly 220 is in the first position, the anchor claw assembly 210 is driven to the retracted state by the transmission matching part 222. When the transmission assembly 220 is in the second position, the anchor claw assembly 210 is in the open state.

[0061] Specifically, the transmission fitting part 222 has a first through hole 2221, and the frame 230 has a second through hole 231 in communication with the first through hole 2221. The anchor jaw assembly 210 has an anchor jaw 211, one end of which is hinged to the frame 230, and the other end is threaded through the first through hole 2221 and the second through hole 231. Among them, when the transmission assembly 220 is in the first position, the first through hole 2221 can limit the anchor jaw 211 to the retracted state. When the transmission assembly 220 is in the second position, the second through hole 231 can limit the anchor jaw 211 to the open state.

[0062] When the anchor jaw 211 switches from the open state to the retracted state, the drive transmission assembly 220 moves in the direction close to the opening, the bottom wall of the first through hole 2221 can abut against the anchor jaw 211, and can drive the anchor jaw 211 to switch from the open state to the retracted state. When the anchor jaw 211 is in the retracted state, the bottom wall of the first through hole 2221 abuts against the anchor jaw 211, and the top wall of the second through hole 231 abuts against the anchor jaw 211. The first through hole 2221 and the second through hole 231 interact to limit the anchor jaw 211 to the retracted state. When the anchor jaw 211 switches from the retracted state to the open state, the transmission assembly 220 moves in the direction away from the opening, the bottom wall of the first through hole 2221 abuts against the anchor jaw 211, and the top wall of the second through hole 231 gradually moves away from the anchor jaw 211, so that the anchor jaw 211 gradually opens. When the anchor jaw 211 is opened to the maximum, the anchor jaw 211 can abut against the bottom wall of the second through hole 231, and the bottom wall of the first through hole 2221 can have a gap with the anchor jaw 211. Specifically, when the anchor jaw 211 is opened to the maximum, the anchor jaw 211 is parallel to the horizontal line.

[0063] Please refer to Figure 8 , the transmission assembly 220 of the other deformation structure in Figure 1 , according to some embodiments of the present application, the transmission assembly 220 includes two groups of diagonal four-bar linkage structures 240. The electric control locking fitting part 320 includes a lead screw 321. Among them, the anchor jaw assembly 210 is arranged or formed at one of the diagonals of the four-bar linkage structure 240. One of the other diagonals of the four-bar linkage structure 240 is configured to be threadedly connected with the lead screw 321, and the other is configured to be pressed by the lead screw 321, specifically according to the paper up-down-left-right square Figure 8 , one of the upper corners can be configured to be threadedly connected with the lead screw 321, one of the lower corners can be configured to be pressed by the lead screw 321, and the opposite corners on the left and right sides are respectively provided with the anchor jaw assembly 210, so that the transmission assembly 220 moves along the extension direction of the lead screw 321 to open the anchor jaw assembly 210.

[0064] Specifically, the transmission assembly 220 further has an anti-rotation part configured to limit the rotation of the transmission assembly 220 relative to the push rod 300 by limiting the position cooperation with the push rod 300. In some embodiments, the anti-rotation part can be a protrusion that is rotationally limited with the accommodating slot formed on the push rod 300, the protrusion extends into the accommodating slot and abuts against the slot wall, so as to prevent the rotation of the transmission assembly 220 relative to the push rod 300 when the transmission assembly 220 is deformed.

[0065] Referring to Figure 1 and Figure 2 , according to some embodiments of the present application, the transmission assembly 220 further comprises a reset member 250 arranged on the frame 230 and in transmission connection with the anchor claw assembly 210, the reset member 250 is configured to provide a reset force for the anchor claw assembly 210 to tend to keep in the open state. After the connection cooperation part 221 and the electrically controlled locking cooperation part 320 are unlocked and separated from each other, the anchor claw assembly 210 can be switched from the retracted state to the open state under the action of the reset force.

[0066] In the present embodiment, the reset member 250 is a torsion spring, the anchor claw assembly 210 comprises a plurality of anchor claws 211, each of the anchor claws 211 comprises a first end hinged to the frame 230 through a rotating shaft and a second end extended out of the frame 230 in the open state, and the anchor claw 211 is elastically cooperated with the torsion spring to rotate around the rotating shaft to the open state under the elastic reset force of the torsion spring.

[0067] For example, in some embodiments, the reset member 250 can also be a tension spring or other mechanical component with resilience, which can be determined according to design requirements and is not specifically limited here.

[0068] Referring to Figure 1 , Figure 2 and Figure 6 , according to some embodiments of the present application, the electrically controlled locking cooperation part 320 comprises a rotatable driven screw rod 321, and the connection cooperation part 221 comprises an internal thread structure capable of being threadedly cooperated with the screw rod 321 to be locked and connected with the connection cooperation part 221 through thread rotation. Specifically, the connection cooperation part 221 is a screw nut cooperated with the screw rod 321. The electrically controlled locking cooperation part 320 further comprises a motor 322 for driving the screw rod 321 to rotate.

[0069] According to some other embodiments of the present application, the electrically controlled locking cooperation part 320 comprises an electromagnetic attraction part, and the connection cooperation part 221 comprises an adsorption cooperation structure capable of being adsorbed with the electromagnetic attraction part, the electrically controlled locking cooperation part 320 is locked and connected with the connection cooperation part 221 through magnetic force or is unlocked with the connection cooperation part 221 by eliminating the magnetic force, the magnetic force is a permanent magnetic force or an electromagnetic magnetic force of the electromagnetic attraction part.

[0070] Specifically, the electromagnetic attraction accessory generates magnetic attraction force when powered on, and the electromagnetic attraction accessory does not generate magnetic attraction force when powered off. The adsorption matching structure can be the transmission assembly 220 itself (exemplarily, the transmission assembly 220 is made of steel), or a magnet arranged on the transmission assembly 220. Alternatively, the magnetic attraction force disappears when the electromagnetic attraction accessory is powered on, and the electrically controlled locking matching component 320 and the connecting matching part 221 are unlocked; the electromagnetic attraction accessory generates magnetic attraction force when powered off, the magnetic attraction force is permanent magnetic force, and the electromagnetic attraction accessory is adsorbed to the frame body 230 on one hand and the transmission assembly 220 on the other hand, that is, the electrically controlled locking matching component 320 and the connecting matching part 221 are locked and connected, so that the transmission assembly 220 drives the anchor claw assembly 210 to be located at the retracted position.

[0071] Preferably, the electrically controlled locking matching component 320 adopts the electromagnetic attraction accessory which has permanent magnetic force when powered off and the magnetic force disappears when powered on, so that the electromagnetic attraction accessory can be adsorbed and fixed on the frame body 230 in the powered-off state, and the transmission assembly 220 is moved to the first position by the permanent magnetic force, so that the anchor claw assembly 210 is located at the retracted position, and continuous power supply is not needed to ensure the locking matching. The structure has less power consumption, is more energy-saving, and does not need continuous power supply. In addition, another advantage of the electromagnetic attraction accessory compared with the motor 322 is that the electromagnetic attraction accessory is more convenient for low-cost waterproof design, and the motor 322 needs higher cost to achieve better waterproof performance. In some deep hole optical fiber laying, water accumulation in the deep hole may cause water leakage, so the electromagnetic attraction accessory has better practical value.

[0072] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 According to some embodiments of the present application, the cable installation component 100 comprises a pulley 110, which can adopt a groove wheel. The pulley 110 is rotatably connected to the positioning component 200, and the peripheral wall of the pulley 110 is configured to be in rolling tension matching with the cable, so as to continuously push the cable in the deep hole during the process of continuously pushing the cable in the deep hole.

[0073] Specifically, referring to Figure 2 The cable installation component 100 further comprises a loading shell 120 and a cable limiting pin 130 arranged on the loading shell 120, the pulley 110 and the cable are arranged in the loading shell 120, and the loading shell 120 is used for protecting the cable. The cable limiting pin 130 and the pulley 110 form a limiting space for the cable to pass through. The cable limiting pin 130 is located at the lower end of the cable installation component 100, which can avoid that foreign matters in the deep hole press the lower end of the cable during the process of pulling and conveying the cable, and the cable limiting pin 130 also plays a role in protecting the cable.

[0074] Please refer to Figures 4 to 6The embodiments of the present application also provide a pushing rod 300, which comprises a rod body 310 and an electrically controlled locking matching component 320 arranged on the rod body 310, and the electrically controlled locking matching component 320 comprises a locking connecting part configured to be locked with or unlocked from the connecting matching part 221 of the cable fixing anchor head 10.

[0075] Please refer to Figure 1 、 Figure 4 、 Figure 5 and Figure 6 According to some embodiments of the present application, the connecting matching part 221 comprises an internal thread structure, and the electrically controlled locking matching component 320 comprises a rotatable driving screw rod 321 configured to be screwed with the internal thread structure to be locked with the connecting matching part 221. Specifically, the connecting matching part 221 is a screw nut matched with the screw rod 321. The electrically controlled locking matching component 320 further comprises a motor 322 for driving the screw rod 321 to rotate. The motor 322 is fixed on the rod body 310, and the locking connecting part is the screw rod 321.

[0076] In addition, according to some other embodiments of the present application, the electrically controlled locking matching component 320 can comprise an electromagnetic attraction part, and the electrically controlled locking matching component 320 is configured to be locked with the connecting matching part 221 by the magnetic force of the electromagnetic attraction part or to be unlocked from the connecting matching part 221 by eliminating the magnetic force of the electromagnetic attraction part. Specifically, the locking connecting part is the electromagnetic attraction part. The electromagnetic attraction part generates a magnetic attraction force when powered on, and the electromagnetic attraction part does not generate a magnetic attraction force when powered off. The connecting matching part 221 can be the transmission assembly 220 itself (exemplarily, the transmission assembly 220 is made of steel), or a magnet arranged on the transmission assembly 220. Or the magnetic attraction force disappears when the electromagnetic attraction part is powered on, and the electrically controlled locking matching component 320 is unlocked from the connecting matching part 221 of the anchor jaw assembly 210; the electromagnetic attraction part generates a magnetic attraction force when powered off, and then can be adsorbed to the frame body 230 of the anchor jaw assembly 210 on one hand, and to the transmission assembly 220 on the other hand, i.e. the electrically controlled locking matching component 320 is locked with the connecting matching part 221, so that the transmission assembly 220 drives the anchor jaw assembly 210 to be located at the retracted position.

[0077] Please refer to Figure 1 、 Figures 4 to 6 According to some embodiments of the present application, an electric wire 330 is arranged in the rod body 310 and electrically connected with the electrically controlled locking matching component 320, so as to supply power to the electrically controlled locking matching component 320 and electrically control the electrically controlled locking matching component 320. The built-in electric wire 330 makes the overall structure of the pushing rod 300 regular, and avoids damaging the electric wire 330 during use.

[0078] Specifically, the rod body 310 comprises a plurality of detachably connected link single bodies, and each of the link single bodies is provided with a wire single segment. The wire single segments in the adjacent two link single bodies are pluggably electrically connected to form the wire 330. In some embodiments, a clamping sleeve nut 340 is sleeved on one of the two adjacent link single bodies, and the other link single body is provided with a threaded hole 350 which is threadedly connected with the clamping sleeve nut 340, so as to realize the detachable connection.

[0079] Specifically, the wire single segments in the adjacent two link single bodies are pluggably electrically connected by a plug assembly to form the wire 330. The plug assembly comprises a first plug 370 arranged on one of the wire single segments in the adjacent two link single bodies, and a second plug 380 arranged on the other wire single segment in the adjacent two link single bodies. The first plug 370 and the second plug 380 are pluggably electrically connected.

[0080] Referring to Figure 1 , Figure 6 and Figure 7 , according to some embodiments of the present application, the positioning component 200 has an anti-rotation part, and the pushing rod 300 further comprises an anti-rotation member 360 arranged on the electrically controlled locking matching component 320 and / or the rod body 310. The anti-rotation member 360 is configured to cooperate with the anti-rotation part to prevent the positioning component 200 from rotating.

[0081] Specifically, the anti-rotation member 360 can be a non-rotating body plug formed at one end of the rod body 310, and the anti-rotation part is an opening formed in the positioning component 200. The opening is pluggably and non-rotatably connected with the non-rotating body plug.

[0082] Referring to Figure 1 , Figure 6 and Figure 7 , the embodiments of the present application further provide a cable laying device 400, which comprises the cable fixing anchor head 10 and the pushing rod 300 as described above.

[0083] It should be noted that the positioning component 200 is inserted into the sidewall of the deep hole through the anchor jaw assembly 210 to realize cable positioning, and the positioning effect is not affected by its own gravity. Therefore, the cable laying device 400 can lay cables in a deep hole formed on the ground, or in a deep hole formed on the ground with a certain slope. That is, the deep hole can be a vertical hole opened upward or downward on the soil structure, or an inclined hole opened upward or downward.

[0084] In one embodiment provided by the present application, referring to Figure 6In actual cable laying, the cable can be inserted into the opening of the cable fixing anchor head 10 and fixed to the non-rotating body plug of the push rod 300 through the tensioning of the cable installation component 100 and the rolling contact with the pulley 110. Then, the motor 322 is controlled to drive the screw rod 321 to rotate and threadedly connect with the 221 of the transmission assembly 220, thereby driving the 220 to move in the opening direction to drive the anchor jaw assembly 210 to the retracted position; and then the locking and matching connection of the 300 and the cable fixing anchor head 10 is realized. Then, the push rod 300 can be inserted into the deep hole opened on the foundation pit, and then the cable is laid in the deep hole. After being inserted into the set position, on the one hand, the tensioning tension is provided for the cable. On the other hand, the 321 is driven to rotate reversely and disengage from the connecting and matching part 221 of the 220, so as to realize the unlocking, and the anchor jaw assembly 210 is reset to the open position, and then the anchor jaw 211 of the anchor jaw assembly 210 is engaged with the hole wall of the deep hole, so that it is difficult to pull back the cable in the deep hole through the traction of the cable, and the position of the cable in the deep hole is fixed. Finally, the cement mortar and other fillers can be filled into the deep hole according to the needs, so as to realize the structural coupling of the cable and the soil environment, which is generally used for temperature, strain and other monitoring.

[0085] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0086] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as the limitation of the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A cable fixing anchor head, characterized in that, include: The cable mounting component is configured to load the cable to be pulled into a deep hole; A positioning component is connected to the cable mounting component. The positioning component includes an anchor claw assembly and a transmission assembly that drives the anchor claw assembly. The transmission assembly includes a connecting engagement part, which is configured to lock into or unlock from an electrically controlled locking engagement part. The cable mounting component includes a pulley, which is rotatably connected to the positioning component, and the peripheral wall of the pulley is configured to roll and tension with the cable. When the connecting part and the electrically controlled locking component are locked together, the electrically controlled locking component can drive the transmission assembly to switch the anchor claw assembly from the open state to the retracted state; when the connecting part and the electrically controlled locking component are unlocked and disengaged, the anchor claw assembly is in the open state. The electrically controlled locking engagement component includes a rotatably driven lead screw, and the connecting engagement part includes an internal thread structure capable of threadedly engaging with the lead screw, so as to lock the connection with the connecting engagement part through threaded screwing; or... The electrically controlled locking and mating component includes an electromagnetic adsorption component, and the connecting and mating part includes an adsorption mating structure that can be adsorbed with the electromagnetic adsorption component, so as to lock the connection with the connecting and mating part by magnetic force or to unlock the connection with the connecting and mating part by eliminating the magnetic force. The magnetic force is the permanent magnet force or electromagnetic force of the electromagnetic adsorption component.

2. The cable fixing anchor head according to claim 1, characterized in that, The positioning component also includes a frame, which is connected to the cable mounting component. The anchor claw assembly and the transmission assembly are movably disposed on the frame. The transmission assembly also includes a transmission engagement part that is transmissionly connected to the anchor claw assembly. The transmission assembly can reciprocate between a first position and a second position. When the transmission component is in the first position, the anchor claw component is driven to be in a retracted state through the transmission engagement part; when the transmission component is in the second position, the anchor claw component is in an open state.

3. The cable fixing anchor head according to claim 2, characterized in that, The frame has an opening, the direction of movement of the transmission component is generally parallel to the orientation of the opening, and the connecting part is provided or formed at the end of the transmission component facing the opening.

4. The cable fixing anchor head according to claim 3, characterized in that, The frame includes an anti-rotation part configured to engage with a push rod to limit the rotation of the transmission assembly relative to the push rod.

5. The cable fixing anchor head according to claim 4, characterized in that, The anti-rotation part is the opening formed on the frame, and the projection of the opening on a plane perpendicular to the orientation of the opening is a non-rotationally symmetric figure.

6. The cable fixing anchor head according to claim 2, characterized in that, The transmission mating part has a first through hole, the frame has a second through hole communicating with the first through hole, the anchor claw assembly has an anchor claw, one end of the anchor claw is hinged to the frame, and the other end passes through the first through hole and the second through hole; When the transmission component is in the first position, the first perforation can confine the anchor claw to the retracted state.

7. The cable fixing anchor head according to claim 2, characterized in that, The transmission assembly also includes: A reset element is disposed on the frame and drivenly connected to the anchor claw assembly, the reset element being configured to provide a reset force that tends to hold the anchor claw assembly in the open state.

8. The cable fixing anchor head according to claim 7, characterized in that, The reset element is a torsion spring, and the anchor claw assembly includes: Multiple anchor claws, each anchor claw having a first end hinged to the frame via a pivot and a second end extending out of the frame in an open state. The anchor claws are elastically engaged with a torsion spring to rotate around the pivot to the open state under the elastic restoring force of the torsion spring.

9. A push rod, characterized in that, include: Rod body; An electrically controlled locking engagement component is disposed on the rod body. The electrically controlled locking engagement component includes a locking connection portion, which is configured to lock into or unlock from the connection engagement portion of the cable fixing anchor head according to any one of claims 1 to 8.

10. The push rod according to claim 9, characterized in that, The connecting mating part includes an internal thread structure, and the electrically controlled locking mating component includes a rotatably driven lead screw, which is configured to screw into the internal thread structure to lock into the connecting mating part. Alternatively, the electrically controlled locking mating component includes an electromagnetic adsorption element, and the connecting mating part includes an adsorption mating structure capable of adsorbing the electromagnetic adsorption element to lock into the connecting mating part by magnetic force or to unlock from the connecting mating part by demagnetizing the magnetic force. The magnetic force is the permanent magnet force or electromagnetic force of the electromagnetic adsorption element. And / or, The positioning component has an anti-rotation part, and the push rod further includes: An anti-rotation component is disposed on the electrically controlled locking engagement component and / or the rod body, and the anti-rotation component is configured to cooperate with the anti-rotation part to prevent the positioning component from rotating.

11. The push rod according to claim 9, characterized in that, The rod body is provided with an electrical wire that is electrically connected to the electrically controlled locking component.

12. The push rod according to claim 11, characterized in that, The rod body includes multiple detachable connecting rod segments, each of which has a wire segment inserted inside. The wire segments in two adjacent connecting rod segments can be plugged in and electrically connected to form the wire.

13. A cable laying device, characterized in that, include: The cable fixing anchor as described in any one of claims 1 to 8, and the push rod as described in any one of claims 9 to 12.

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