High-adaptability corner well cable pay-off rack
The cable laying frame with mechanical linkage and pressure feedback system solves the problem of difficult position adjustment of traditional cable laying frames in corner wells, realizes arc self-adaptation and pressure adjustment during cable laying, and improves the quality of cable laying and the service life of equipment.
Patent Information
- Application Number
- CN202511071233.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2025-12-19
AI Technical Summary
Traditional cable laying racks are not convenient for adjusting the position of cables according to installation needs when used in corner wells. This results in the guide wheels applying different contact forces to the cables, which may damage them. Furthermore, manual adjustment is inaccurate and affects the laying path.
Employing a mechanical linkage structure and pressure feedback system, the screw is driven to rotate via a knob, which in turn drives the sleeve rod to rise and fall, enabling adaptive adjustment of the guide wheel position. Combined with an electric push rod and pressure sensor, the guide wheel position is adjusted in real time to ensure proper bending of the cable and avoid pressure concentration.
It enables adaptive adjustment of the arc during cable laying, reduces the failure rate, protects the cable from damage, improves laying quality and equipment life, and ensures transmission stability.
Smart Images
Figure CN121158601A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of cable laying frame, in particular to a high adaptability corner well cable laying frame. BACKGROUND
[0002] Cable laying is an important link in power, communication, municipal and other engineering, involving various laying methods such as underground, overhead and underwater. With the acceleration of urbanization and the growth of power demand, cable laying technology is constantly evolving to improve construction efficiency, ensure cable safety and adapt to complex environments. Corner well (also known as cable manhole well or cable turning well) is a key node in underground cable pipeline system, used to change the direction of cable (such as 90° turning, T-shaped branching, etc.), and its laying technology directly affects the long-term reliable operation of the cable.
[0003] With the rapid development of urban underground pipe gallery, power tunnel and comprehensive pipe trench and other infrastructure construction, as the key node of line turning, the construction environment of corner well puts higher requirements on cable laying equipment. The traditional cable laying frame is not convenient to adjust the installation position of the cable according to the installation needs in the application of corner well, so that the cable needs to be manually adjusted in position when laying at a large angle. Manual adjustment is not conducive to ensuring the accuracy of the position of the laying frame, which may cause the cable laying path to deviate from the design requirements, and the cable is subjected to concentrated force at the corner during traction. Different positions of the guide wheel will exert different contact pressures on the cable, and if the contact of the guide wheel at a certain position is too large, it may cause damage to the inside of the cable.
[0004] In view of the above problems, it is urgent to make innovative design on the basis of the original. SUMMARY
[0005] The purpose of the present application is to provide a high adaptability corner well cable laying frame to solve the problem that the traditional cable laying frame is not convenient to adjust the installation position of the cable according to the installation needs in the application of corner well, and the guide wheels at different positions will exert different contact forces on the cable. The technical solution of the present application provides a solution significantly different from the prior art, which solves the problem that the prior art solution is too single.
[0006] To achieve the above object, the present application provides the following technical scheme: a high adaptability corner well cable pay-off rack, comprising a shell, a first extension rod is centrally installed inside the shell, a first sleeve rod is sleeved on the surface of the first extension rod, a second extension rod is rotatably connected inside the shell, a second sleeve rod is sleeved on the surface of the second extension rod, an electric push rod is installed inside the top groove of the first sleeve rod and the second sleeve rod, an adjusting table is installed on the extension end of the electric push rod, a mounting table is limitingly and slidably arranged inside the adjusting table, a guide wheel is rotatably connected inside the mounting table, an expansion adjusting assembly is installed on the surface of the first extension rod and the side end of the second extension rod, a knob is rotatably connected on the surface of the shell, a position limiting assembly is installed on the two sides of the first extension rod and the side end of the mounting table. The expansion adjusting assembly comprises a screw rod rotatably connected inside the first extension rod, a bevel gear set is installed on the bottom of the screw rod, a rack is arranged on the surface of the first extension rod, a first rotary table is installed on the side end of the first extension rod, a second rotary table is limitingly and slidably arranged in the side end sliding groove of the second extension rod, a connecting rod is rotatably connected inside the first rotary table, the other end of the connecting rod is rotatably connected inside the second rotary table, and a sliding block is installed on the surface of the second sleeve rod.
[0007] The technical scheme realizes the radian self-adaptive adjustment through the mechanical linkage structure, solves the two core problems of cable laying radian control and stress protection simultaneously under the condition of without manual intervention in combination with the pressure dynamic feedback system, significantly reduces the laying failure rate and prolongs the service life of the cable. Specifically, the knob drives the screw rod to rotate, the linkage bevel gear set drives the first sleeve rod to lift, at the same time, the rack moves with the first sleeve rod to drive the gear to rotate, the second extension rod is pushed to rotate through the connecting rod, the synchronous movement of the first sleeve rod and the second extension rod is realized, the position of the guide wheel is self-adaptively adjusted, the reasonable bending radian is maintained during the cable laying, and the sharp bend or twist is avoided. The electric push rod drives the adjusting table to slide, cooperates with the spring at the bottom of the mounting table and the pressure sensor, and the pressure of the cable on the guide wheel is detected in real time; when the pressure exceeds the threshold value, the electric push rod automatically adjusts the position of the guide wheel, dynamically disperses the local stress of the cable, and prevents the cable from being damaged due to pressure concentration. The second sleeve rod slides in the arc limiting groove of the shell through the sliding block, and the second extension rod is elastically connected with the second sleeve rod through the spring; the movement track of each component is stable during the adjustment process, the overall structure is not deviated during expansion / contraction, and the reliability of the pay-off rack is improved.
[0008] Preferably, the number of the second extension rods and the second sleeve rods is two groups, and the two groups of the second extension rods and the second sleeve rods are symmetrically distributed inside the shell.
[0009] Preferably, the bottom end of the adjusting table limitingly slides in the top groove of the first sleeve rod and the second sleeve rod, a pressure sensor is installed inside the adjusting table, a spring is installed at the bottom end inside the adjusting table, and the other end of the spring is connected with the bottom end of the mounting table.
[0010] Preferably, the lower end surface of the screw rod is smooth, and the upper end surface is provided with threads, the upper end surface of the screw rod is connected with the internal threads of the first sleeve rod, the knob is connected with the bevel gear set, and the top end of the second extension rod is provided with a spring, and the other end of the spring is connected with the top end of the inner wall of the second sleeve rod.
[0011] Preferably, the surface of the first rotary table is provided with a gear, the back end of the gear penetrates the first rotary table and is connected with the second rotary table, and the top end of the rack is connected with the bottom of the first sleeve rod.
[0012] Preferably, the second rotary table is provided, close to the bottom of the block at one end of the second extension rod, with a spring, and the other end of the spring is connected with the bottom of the inner wall of the side end sliding groove of the second extension rod, the surface of the shell is provided with an arc-shaped limiting groove, and the sliding block slides in the arc-shaped limiting groove on the surface of the shell.
[0013] Preferably, the position limiting assembly comprises a first oil tank installed on the inner wall surface of the shell, a first piston rod limitingly and slidably arranged in the first oil tank, a lug installed on the top end of the first piston rod, and a first sleeve rod connected with the side end of the first sleeve rod on the side end of the lug, and further comprises a sliding table limitingly and slidably arranged on the surface of the mounting table, a contact frame limitingly and slidably arranged in the sliding table, limiting plates installed on the two sides of the sliding table, a second oil tank installed on the surface of the mounting table, a second piston rod limitingly and slidably arranged in the second oil tank, a lug installed on the end of the second piston rod, and an extension sleeve installed on the top end of the contact frame close to the central end of the guide wheel.
[0014] Preferably, the limiting plate is provided with a strip-shaped groove in the inside, the contact frame is provided with a block on the side end, the block limitingly and slidably arranged in the strip-shaped groove of the limiting plate, the number of the sliding table and the contact frame is two groups, the two groups of the sliding table and the contact frame are symmetrically distributed on the front and rear ends of the mounting table, and the two groups of the sliding table limitingly and slidably arranged on the front and rear ends of the mounting table.
[0015] Preferably, the contact frame is provided with a groove in the inside, the lug is provided with a thin rod on the top end, the thin rod on the top end of the lug limitingly and slidably arranged in the groove in the inside of the contact frame, the thin rod on the top end of the lug is provided with a spring, the bottom end of the spring is connected with the bottom end of the groove in the inside of the contact frame, and the first oil tank and the second oil tank are connected with a hose.
[0016] Compared with the prior art, the present application has the following beneficial effects: 1. The application, by setting the first extension rod, the first sleeve rod, the second extension rod, the second sleeve rod and the expansion adjustment assembly, can flexibly adjust the position of the corner well cable laying rack according to the installation requirements of cable laying, when the first extension rod and the second extension rod drive the guide wheel to extend, it can drive it to expand outward, so that the adjusted laying rack can always maintain the same arc, so that the cable bends along the preset reasonable arc during laying, avoiding adverse conditions such as sharp bending and twisting. Whether it is a larger expansion angle or an installation angle, it can be laid under the guidance of stable arc, effectively protecting the integrity of the cable structure, ensuring the stability of the electrical performance of the cable, and improving the overall quality of the cable laying.
[0017] 2. The application, by setting the electric push rod, the adjusting table, the mounting table and the pressure sensor, when the pressure sensor detects that the pressure applied by the cable reaches the threshold value, the controller drives the adjusting table to slide inward in the first sleeve rod and the second sleeve rod top groove through the electric push rod, so that the pressure sensor detection result is within the safe range, by adjusting the pressure in real time, avoiding fatigue damage of the cable or related parts due to long-term bearing of excessive pressure, significantly prolonging the service life of the equipment.
[0018] 3. The application, by setting the position limiting assembly, the cable can always be kept in the middle of the guide wheel, when the first extension rod and the second extension rod drive the guide wheel to extend, the expansion angle of the corner well cable laying rack will increase, so that the size of the cable installed on the surface of the cable laying rack also increases synchronously, the position limiting assembly can ensure that cables of different specifications can be limited in the middle of the guide wheel, avoiding unstable transmission caused by cable deviation, not only reducing the shaking or deviation in the transmission process, improving the stability of the transmission, but also reducing the friction with the edge of the guide wheel, prolonging the service life of the cable and the guide wheel. DETAILED DESCRIPTION
[0019] Figure 1 It is a structural schematic view of one perspective of the application; Figure 2 It is a structural schematic view of the cross section of the application; Figure 3 It is Figure 2 It is an enlarged structural schematic view of position A in the middle; Figure 4 It is a structural schematic view of the first extension rod and the second extension rod of the application; Figure 5 It is Figure 4 It is an enlarged structural schematic view of position B in the middle; Figure 6 It is a cross-sectional structural schematic view of the second extension rod and the second sleeve rod of the application; Figure 7 It is an exploded structural schematic view of the first extension rod and the first sleeve rod of the application; Figure 8 It is the cross section structure schematic view of first extension rod and first sleeve rod of the application; Figure 9 It is the local structure schematic view of installation platform and guide wheel of the application; Figure 10 It is the explosion structure schematic view of installation platform and guide wheel of the application; Figure 11 It is Figure 10 It is the enlarged structure schematic view of C.
[0020] In the figure: 1, shell; 2, first extension rod; 3, first sleeve rod; 4, second extension rod; 5, second sleeve rod; 6, electric push rod; 7, adjusting platform; 8, installation platform; 9, guide wheel; 101, screw rod; 102, bevel gear set; 103, rack; 104, first rotary table; 105, gear; 106, second rotary table; 107, sliding block; 108, connecting rod; 11, knob; 12, pressure sensor; 131, first oil tank; 132, first piston rod; 133, sliding table; 134, abutment frame; 135, limiting plate; 136, second oil tank; 137, second piston rod; 138, boss; 139, telescopic sleeve. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.
[0022] Please refer to Figures 1-11 The application provides a technical solution: a high-adaptability corner well cable pay-off rack, which comprises a shell 1, a first extension rod 2 is installed in the center of the shell 1, a first sleeve rod 3 is sleeved on the surface of the first extension rod 2, a second extension rod 4 is rotationally connected in the shell 1, a second sleeve rod 5 is sleeved on the surface of the second extension rod 4, an electric push rod 6 is installed in the recesses at the top ends of the first sleeve rod 3 and the second sleeve rod 5, an adjusting platform 7 is installed at the extending end of the electric push rod 6, an installation platform 8 is limitingly and slidably arranged in the adjusting platform 7, a guide wheel 9 is rotationally connected in the installation platform 8, an expansion adjusting assembly is installed on the surface of the first extension rod 2 and the side end of the second extension rod 4, a knob 11 is rotationally connected on the surface of the shell 1, and a position limiting assembly is installed on the two sides of the first extension rod 2 and the side end of the installation platform 8.
[0023] The expansion adjusting assembly comprises a screw rod 101 rotatably connected in the first extension rod 2, a bevel gear set 102 mounted at the bottom of the screw rod 101, a rack 103 arranged on the surface of the first extension rod 2, a first rotary table 104 mounted at the side end of the first extension rod 2, a second rotary table 106 slidably limited in the side end sliding groove of the second extension rod 4, a connecting rod 108 rotatably connected in the first rotary table 104, the other end of the connecting rod 108 rotatably connected in the second rotary table 106, a sliding block 107 mounted on the surface of the second sleeve rod 5, the expansion adjusting assembly can flexibly adjust the position of the rotary well cable reel according to the installation requirement of cable laying, and when the first extension rod 2 and the second extension rod 4 drive the guide wheel 9 to extend, the guide wheel 9 can be driven to expand outward, so that the adjusted cable reel can always maintain the same arc.
[0024] As an embodiment of the present application, the number of the second extension rod 4 and the second sleeve rod 5 is two groups, the two groups of the second extension rod 4 and the second sleeve rod 5 are symmetrically distributed in the housing 1, and the establishment of the two groups of the second extension rod 4 and the second sleeve rod 5 can make the cable reel inside be fan-shaped open.
[0025] As an embodiment of the present application, the adjusting table 7 is slidably limited in the groove at the top end of the first sleeve rod 3 and the second sleeve rod 5, the pressure sensor 12 is mounted in the adjusting table 7, the spring is mounted at the bottom end in the adjusting table 7, the other end of the spring is connected with the bottom end of the mounting table 8, when the pressure sensor 12 detects that the pressure applied by the cable reaches the threshold value, the controller drives the adjusting table 7 to slide inward in the groove at the top end of the first sleeve rod 3 and the second sleeve rod 5 through the electric push rod 6, so that the detection result of the pressure sensor 12 is in the safe range.
[0026] As an embodiment of the present application, the surface of the lower end of the screw rod 101 is smooth, the surface of the upper end is provided with threads, the upper end surface of the screw rod 101 is screw-connected with the inside of the first sleeve rod 3, the knob 11 is connected with the bevel gear set 102, the spring is mounted at the top end of the second extension rod 4, the other end of the spring is connected with the top end of the inner wall of the second sleeve rod 5, rotating the knob 11 can drive the screw rod 101 to rotate through the bevel gear set 102, and the screw rod 101 can drive the first sleeve rod 3 to slide on the surface of the first extension rod 2 when rotating.
[0027] As an embodiment of the present application, the gear 105 is mounted on the surface of the first rotary table 104, the gear 105 penetrates through the first rotary table 104 and is connected with the second rotary table 106, the top end of the rack 103 is connected with the bottom of the first sleeve rod 3, the first sleeve rod 3 can drive the gear 105 to rotate through the rack 103 when sliding on the surface of the first extension rod 2, the rotation of the gear 105 can drive the second extension rod 4 to rotate through the connecting rod 108, so as to adjust the opening angle of the cable reel.
[0028] As an embodiment of the present application, the second rotary table 106 is provided with a spring near the bottom of the protrusion at one end of the second extension rod 4, the other end of the spring is connected with the inner wall bottom of the side end sliding groove of the second extension rod 4, an arc-shaped limiting groove is formed on the surface of the shell 1, and the sliding block 107 slides in the arc-shaped limiting groove on the surface of the shell 1, so that the second extension rod 4 can drive the second sleeve to extend outward on the surface of the second extension rod 4 when the second extension rod 4 rotates in the shell 1.
[0029] The conventional cable pay-off stand is inconvenient to adjust the installation position of the cable according to the installation needs in the corner well application, and the guide roller 9 at different positions will exert different resistance forces on the cable. The specific implementation manner is as follows: in operation, the knob 11 is rotated, at this time, the knob 11 drives the screw rod 101 to rotate through the bevel gear set 102, the screw rod 101 drives the first sleeve rod 3 to slide upward on the surface of the first extension rod 2, the first sleeve rod 3 drives the rack 103 to move upward on the surface of the first extension rod 2 at the same time, the rack 103 drives the gear 105 to rotate, the gear 105 drives the connecting rod 108 to rotate in the first rotary table 104, when the connecting rod 108 rotates around the first rotary table 104, the other end of the connecting rod 108 drives the second rotary table 106 to slide downward in the side end sliding groove of the second extension rod 4, at this time, the connecting rod 108 will press the second extension rod 4 to rotate in the shell 1, the second extension rod 4 drives the sliding block 107 on the surface of the second sleeve rod 5 to slide in the arc-shaped limiting groove on the surface of the shell 1 when rotating, so that the second sleeve rod 5 slides outward along the length direction of the second extension rod 4, at this time, the mounting table 8 drives the guide roller 9 to extend outward to adapt to the installation needs of different cables, when the guide roller 9 pulls the cable, the cable will exert a pressure on the guide roller 9, driving the mounting table 8 to slide into the adjusting table 7, at this time, the pressure sensor 12 detects that the pressure exerted by the cable reaches a threshold value, the controller drives the adjusting table 7 to slide inward in the top groove of the first sleeve rod 3 and the second sleeve rod 5 through the electric push rod 6, so that the detection result of the pressure sensor 12 is within a safe range.
[0030] As one of the embodiments of the present application, the position limiting assembly comprises a first oil tank 131 mounted on the inner wall surface of the shell 1, a first piston rod 132 slidingly limited in the first oil tank 131, a lug plate mounted at the top end of the first piston rod 132, the lug plate being connected with the side end of the first sleeve rod 3, a sliding table 133 slidingly limited on the surface of the mounting table 8, a contact frame 134 slidingly limited in the sliding table 133, a limiting plate 135 mounted on the two sides of the sliding table 133, a second oil tank 136 mounted on the surface of the mounting table 8, a second piston rod 137 slidingly limited in the second oil tank 136, a lug 138 mounted at the end of the second piston rod 137, an extension sleeve 139 mounted at the top of the contact frame 134 close to one end of the central part of the guide wheel 9, and the position limiting assembly can ensure that the cables of different specifications can be limited in the middle part of the guide wheel 9, avoiding the unstable transmission caused by the deviation of the cables, reducing the shaking or deviation in the transmission process, improving the stability of the transmission, and reducing the friction with the edge of the guide wheel 9.
[0031] As one of the embodiments of the present application, the limiting plate 135 is internally provided with a strip-shaped groove, the contact frame 134 is provided with a lug at the side end, the lug slidingly limited in the strip-shaped groove of the limiting plate 135, the sliding table 133 and the contact frame 134 are two groups, the two groups of sliding table 133 and contact frame 134 are symmetrically distributed at the front and rear ends of the mounting table 8, the two groups of sliding table 133 are oppositely limited and slidingly limited at the front and rear ends of the mounting table 8, the contact frame 134 is internally provided with a groove, a thin rod is mounted at the top end of the lug 138, the thin rod at the top end of the lug 138 is limited and slidingly limited in the groove in the contact frame 134, a spring is sleeved on the surface of the thin rod of the lug 138, the bottom end of the spring is connected with the bottom end of the groove in the contact frame 134, a hose is connected between the first oil tank 131 and the second oil tank 136, the lug 138 drives the contact frame 134 and the sliding table 133 to slide away from one end of the mounting table 8, when the contact frame 134 slides, the lug at the side end is in contact with the strip-shaped groove in the limiting plate 135, driving the contact frame 134 to gradually rise in the sliding table 133, so that the end part of the contact frame 134 can always be in contact with the cable.
[0032] Working principle: when in use, rotate the knob 11, at this time the knob 11 drives the screw rod 101 to rotate through the bevel gear set 102, the screw rod 101 rotates to drive the first sleeve rod 3 to slide upward on the surface of the first extension rod 2, the first sleeve rod 3 moves on the surface of the first extension rod 2 at the same time drives the rack 103 to move upward, the rack 103 moves upward to drive the gear 105 to rotate, the gear 105 rotates to drive the connecting rod 108 to rotate inside the first rotary table 104, when the connecting rod 108 rotates around the first rotary table 104, the other end of the connecting rod 108 drives the second rotary table 106 to slide downward in the side end sliding groove of the second extension rod 4, at this time the connecting rod 108 will extrude the second extension rod 4 to make it rotate inside the shell 1, the second extension rod 4 rotates to drive the surface sliding block 107 of the second sleeve rod 5 to slide in the arc limiting groove on the surface of the shell 1, so that the second sleeve rod 5 slides outward on the surface of the second extension rod 4, at this time the mounting table 8 drives the guide wheel 9 to extend outward to adapt to the installation requirements of different cables, when the guide wheel 9 pulls the cable, the cable will exert pressure on the guide wheel 9, driving the mounting table 8 to slide into the adjusting table 7, at this time the pressure sensor 12 detects that the pressure exerted by the cable reaches the threshold value, the controller drives the adjusting table 7 to slide inward in the top groove of the first sleeve rod 3 and the second sleeve rod 5 through the electric push rod 6, so that the detection result of the pressure sensor 12 is within the safe range.
[0033] When the screw rod 101 rotates to drive the first sleeve rod 3 to slide upward on the surface of the first extension rod 2, the side end of the first sleeve rod 3 pulls the first piston rod 132 to move upward through the lug, the first piston rod 132 moves to extrude the oil in the first oil tank 131, so that the oil in the first oil tank 131 enters the second oil tank 136, the oil in the second oil tank 136 pushes the second piston rod 137 to drive the boss 138 to move outward, the boss 138 drives the abutting frame 134 and the sliding table 133 to slide away from one end of the mounting table 8, the side end protrusion of the abutting frame 134 is resisted by the strip-shaped groove inside the limiting plate 135 when the abutting frame 134 slides, driving the abutting frame 134 to gradually rise inside the sliding table 133, so that the abutting frame 134 drives the end telescopic sleeve 139 to rise at the same time, at this time the surface of the telescopic sleeve 139 can always resist the cable.
[0034] The content not described in detail in the specification belongs to the prior art known to those skilled in the art. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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 a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; 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. 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.
[0035] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A highly adaptable corner well cable pay-off stand comprising a housing (1), characterized in that: The first extension rod (2) is centrally arranged in the shell (1), the first extension rod (2) is sleeved with a first sleeve rod (3), the second extension rod (4) is rotatably connected in the shell (1), the second extension rod (4) is sleeved with a second sleeve rod (5), the first sleeve rod (3) and the second sleeve rod (5) are arranged with an electric push rod (6) in the top groove, the electric push rod (6) is arranged with an adjusting table (7), the adjusting table (7) is arranged with a mounting table (8) which is limited to slide, the mounting table (8) is rotatably connected with a guide wheel (9), the first extension rod (2) and the second extension rod (4) are arranged with an expansion adjusting assembly, the shell (1) is rotatably connected with a knob (11), the first extension rod (2) and the mounting table (8) are arranged with a position limiting assembly. The expansion adjusting assembly comprises a screw rod (101) rotatably connected in the first extension rod (2), the screw rod (101) is arranged with a bevel gear set (102) at the bottom, the first extension rod (2) is provided with a rack (103), the first extension rod (2) is arranged with a first rotary table (104), the second extension rod (4) is arranged with a second rotary table (106) which is limited to slide in the side groove, the first rotary table (104) is rotatably connected with a connecting rod (108), the other end of the connecting rod (108) is rotatably connected in the second rotary table (106), the second sleeve rod (5) is arranged with a sliding block (107).
2. The high adaptability corner well cable pay-off stand according to claim 1, characterized in that: The number of the second extension rod (4) and the second sleeve rod (5) is two groups, the two groups of the second extension rod (4) and the second sleeve rod (5) are symmetrically arranged in the shell (1).
3. The high adaptability corner well cable pay-off stand according to claim 2, characterized in that: The bottom of the adjusting table (7) is limited to slide in the top groove of the first sleeve rod (3) and the second sleeve rod (5), the adjusting table (7) is arranged with a pressure sensor (12), the bottom of the adjusting table (7) is arranged with a spring, and the other end of the spring is connected with the bottom of the mounting table (8).
4. The high adaptability corner well cable pay-off stand according to claim 3, characterized in that: The lower surface of the screw rod (101) is smooth, and the upper surface is provided with threads, the upper surface of the screw rod (101) is screw-connected with the first sleeve rod (3), the knob (11) is connected with the bevel gear set (102), the second extension rod (4) is arranged with a spring at the top, and the other end of the spring is connected with the inner wall top of the second sleeve rod (5).
5. A high adaptability corner well cable pay-off stand according to claim 4, characterized in that: The first rotary table (104) is arranged with a gear (105), the gear (105) penetrates through the first rotary table (104) and is connected with the second rotary table (106), and the top of the rack (103) is connected with the bottom of the first sleeve rod (3).
6. A high adaptability corner well cable pay-off stand according to claim 5, characterized in that: The second rotary table (106) is arranged with a spring near the bottom of the protrusion at one end of the second extension rod (4), the other end of the spring is connected with the inner wall bottom of the side groove of the second extension rod (4), the surface of the shell (1) is provided with an arc limiting groove, and the sliding block (107) slides in the arc limiting groove of the surface of the shell (1).
7. A high adaptability corner well cable pay-off stand according to claim 6, characterized in that: The position limiting assembly comprises a first oil tank (131) mounted on the inner wall surface of the shell (1), a first piston rod (132) slidingly limited in the first oil tank (131), a lug plate mounted on the top end of the first piston rod (132), and a side end of the lug plate connected with a side end of the first sleeve rod (3); the position limiting assembly further comprises a sliding table (133) slidingly limited on the surface of a mounting table (8), a contact frame (134) slidingly limited in the sliding table (133), limiting plates (135) mounted on both sides of the sliding table (133), a second oil tank (136) mounted on the surface of the mounting table (8), a second piston rod (137) slidingly limited in the second oil tank (136), a lug (138) mounted on the end of the second piston rod (137), and an extension sleeve (139) mounted on the top of the contact frame (134) close to the central one end of the guide wheel (9).
8. The high adaptability corner well cable pay-off stand according to claim 7, characterized in that: The limiting plate (135) is internally provided with a strip-shaped groove, the contact frame (134) is provided with a lug on the side end, the lug slidingly limited in the strip-shaped groove of the limiting plate (135), the sliding table (133) and the contact frame (134) are two groups, the two groups of the sliding table (133) and the contact frame (134) are symmetrically distributed at the front and rear ends of the mounting table (8), and the two groups of the sliding table (133) are oppositely limited and slid at the front and rear ends of the mounting table (8).
9. The high adaptability corner well cable pay-off stand according to claim 8, characterized in that: The contact frame (134) is internally provided with a groove, the lug (138) is provided with a thin rod on the top end, the thin rod on the top end of the lug (138) is limited and slid in the groove in the contact frame (134), the thin rod on the top end of the lug (138) is provided with a spring, the bottom end of the spring is connected with the bottom end of the groove in the contact frame (134), and the first oil tank (131) and the second oil tank (136) are connected with a hose.