A quick connection device for a tubular conductor

Abstract

The present invention discloses a rapid connection device for tubular conductors, which relates to the technical field of tubular conductor connection and specifically includes: a connection body for connecting with conductors of other devices; a guiding body for connecting the tubular conductor with the connection body; and a locking device for connecting the connection body, the guiding body and the tubular conductor. The present invention electrically connects the conductors of other devices and the tubular conductor through the connection body and the guiding body. Compared with the existing welding connection, it has stronger current-carrying capacity and is simple to install. Only by tightening the screw can the connection be achieved; and since welding is not adopted, there is no problem of false welding or insufficient welding area.

Description

Technical Field

[0001] The present invention relates to the field of connection of tubular conductors, and particularly to a quick connection device for tubular conductors. Background Art

[0002] With the increase of power load, the capacity of power transmission is getting larger and larger; the capacity transmitted through cables can no longer meet the user's needs; tubular busbars and GIL busbars that can transmit high voltage and large current are gradually being applied; at present, the connection between tubular busbars, GIL busbars and power terminal equipment mainly adopts the welding method, but the welding current-carrying capacity is weak, the installation is time-consuming, and it is easy to produce false welding or the welding cross-sectional area does not meet the current-carrying requirements, resulting in equipment overheating and even malfunction shutdown. Summary of the Invention

[0003] The purpose of the present invention is to provide a quick connection device for tubular conductors to solve the problems of weak welding current-carrying capacity, time-consuming installation, easy occurrence of false welding or the welding cross-sectional area not meeting the current-carrying requirements after the connection between tubular busbars, GIL busbars and power terminal equipment by welding, resulting in equipment overheating and even malfunction shutdown, and solve the problems of large current-carrying of conductors, fixed connection between conductors, and fitting installation with the outer diameter of tubular conductors as the reference dimension.

[0004] The technical solution of the present invention is as follows:

[0005] A quick connection device for tubular conductors specifically includes:

[0006] A connection body, which is used to connect with conductors of other devices; the connection body is electrically connected to conductors of other devices to achieve current transmission;

[0007] A guiding body, which is used for connecting the tubular conductor and the connection body; one end of the guiding body is electrically connected to the tubular conductor, and the other end is electrically connected to the connection body to achieve current transmission;

[0008] A locking device, which connects the connection body, the guiding body and the tubular conductor, compresses the connection body, the guiding body and the tubular conductor and prevents them from falling off; during use, first connect the guiding body with the tubular conductor, then install it with the connection body through the locking device, and then connect the connection body with conductors of other devices.

[0009] Further, at least one first groove is transversely formed on the outer side of the connecting body, and a first contact body with electrical conductivity is placed in the first groove; when the connecting body is inserted into a conductor of other equipment, the first contact body electrically connects the connecting body with the conductor of other equipment, and a current-carrying capacity is formed between the connecting body and the conductor of other equipment; the first groove is arranged in the circumferential direction; there are two first grooves in total, the connecting body is cylindrical, and the first groove is an annular groove arranged on the connecting body; the first contact body is installed in the first groove, and the size of the first contact body after installation is slightly larger than the outer diameter of the connecting body, and the outer diameter of the connecting body is slightly smaller than the inner diameter of the conductor of other equipment; it is ensured that after the connecting body is inserted into the conductor of other equipment, the first contact body will deform, and tightly connect with the connecting body and the conductor of other equipment to form a certain electrical conductivity and current-carrying capacity.

[0010] Further, the guiding body is T-shaped and includes a transverse part and a vertical part; the vertical part is used for inserting into a tubular conductor to connect with the tubular conductor, and the transverse part plays a limiting role; the transverse part and the vertical part are perpendicularly arranged and are T-shaped; the diameter of the vertical part has a clearance fit with the inner diameter of the tubular conductor; after the vertical part is inserted into the tubular conductor, the tubular conductor abuts against the lower end surface of the transverse part to prevent the guiding body from falling off; both the transverse part and the vertical part are cylindrical.

[0011] Further, a semi-through hole for inserting the guiding body and the tubular conductor is formed in the connecting body, and at least one second groove is transversely formed in the semi-through hole, and a second contact body with electrical conductivity is placed in the second groove; when the tubular conductor and the connecting body are inserted into the semi-through hole, the second contact body electrically connects the tubular conductor with the connecting body, and a current-carrying capacity is formed between the connecting body and the tubular conductor; after the second contact body is installed in the second groove and the tubular conductor is inserted into the semi-through hole, the second contact body will deform; the number of the second grooves is one; the inner diameter of the semi-through hole has a clearance fit with the diameter of the transverse part of the guiding body, and its function is to make the second contact body have the same contact force with the tubular conductor around; preferably, the distance from the upper surface of the second groove to the upper surface of the semi-through hole should be greater than the thickness of the transverse part, so as to ensure that after complete installation, the second groove is completely blocked by the side wall of the tubular conductor, that is, to ensure that the second contact body in the second groove is completely in contact with the side wall of the tubular conductor, and to ensure the uniform force of the tubular conductor.

[0012] Further, the first contact body and the second contact body are elastic devices; the first contact body and the second contact body form a contact pressure between two contact surfaces through elastic deformation; the first contact body and the second contact body are preferably spring fingers or watch band fingers to ensure reliable contact.

[0013] Further, a limiting groove is formed on the outer side of the vertical portion of the transverse portion. After the end of the tubular conductor is fitted with the limiting groove, the tubular conductor is positioned by the outer diameter of the tubular conductor. The limiting groove is an annular groove formed by the transverse portion at a position close to the vertical portion. The outer diameter of the limiting groove is designed to match the outer diameter of the tubular conductor, and the outer diameter of the horizontal portion of the guiding body is designed to match the inner cavity of the connecting body, so as to ensure that when there is a wall thickness deviation in the tubular conductor, the entire connecting device always offsets with the offset of the outer diameter of the tubular conductor.

[0014] Further, a third limiting step is provided at the lower end of the connecting body; a first limiting device for restricting the transitional rotation of the guiding body and the connecting body is provided on the end face of the semi-through hole and the end face of the transverse portion; by providing the first limiting device, the transitional rotation of the guiding body and the connecting body is restricted; preferably, the first limiting device includes a limiting hole provided on the end face of the semi-through hole and a first limiting step provided on the end face of the transverse portion and matching with the limiting hole. There is at least one of the limiting hole and the first limiting step, and the number of the limiting hole and the first limiting step is the same; when the number of the limiting hole and the first limiting step is one, the limiting hole and the first limiting step are provided at a position deviating from the axis.

[0015] Further, a counterbore is formed on the connecting body, and the counterbore is communicated with the semi-through hole through a first through hole; a second through hole is formed on the horizontal portion of the guiding body, and an inner hole is provided in the vertical portion. One end of the inner hole is a large end and the other end is a small end; the small end of the inner hole is communicated with the second through hole; the locking device is a pressing cone and a screw rod. An internal threaded hole matching with the screw rod is provided in the pressing cone; the pressing cone is installed in the inner hole, and the screw rod is inserted from the counterbore, sequentially passes through the first through hole, the second through hole and the inner hole and is threadedly connected with the pressing cone. As the screw rod continues to rotate, the pressing cone moves inward to the small end of the inner hole in the inner hole, and the vertical portion deforms and expands outward, so that the guiding body, the tubular conductor and the connecting body form a rigid connection; through the cooperation of the screw rod and the pressing cone, not only the connecting body is connected with the guiding body, but also the side wall of the guiding body expands to apply pressure to the tubular conductor, so that the tubular conductor, the guiding body and the connecting body form a rigid connection.

[0016] Further, the inner hole is frustum-shaped, and a second limiting device for restricting the rotation of the pressing cone is provided on the inner hole and the pressing cone; the inner hole can be set in other shapes, such as a frustum-shaped prism with a smaller upper part and a larger lower part. The shape and size of the pressing cone are consistent with the inner hole to ensure that the pressing cone can move up and down in the inner hole to squeeze the side wall of the guiding body; since the inner hole is frustum-shaped, in order to prevent the pressing cone from rotating in the inner hole, a second limiting device is provided to play a limiting role, so as to ensure that when the screw rotates, the pressing cone does not rotate but moves up and down; preferably, the second limiting device includes a guiding groove opened in the inner hole and a second limiting step provided on the surface of the pressing cone and cooperating with the guiding groove; the width of the second limiting step is smaller than the width of the guiding groove to ensure that the pressing cone can move up and down normally.

[0017] Further, a transition arc for guiding is provided at one end of the connecting body away from the semi-through hole; a large arc for guiding and preventing the sudden change of the second contact body is provided at the end face of the transverse part of the guiding body; the main function of the transition arc is to play a guiding role when the connecting body is installed on the conductor of other equipment; the large arc is provided at the transition between the transverse part end face and the vertical part of the guiding body; on the one hand, its purpose is: when the guiding body is installed on the connecting body, it plays a guiding role, and on the other hand: during the connection process, under the action of the large arc, the second contact body is gradually pressed tightly to prevent damage to the second contact body when the pressing force suddenly changes; it reduces the processing time of the tubular conductor when the connecting device is installed on the tubular conductor, thereby accelerating the installation speed.

[0018] Further, a clamping step is provided inwardly in the inner hole of the guiding body, and the clamping step prevents the pressing cone from falling; the height of the clamping step is greater than the gap between the vertical part and the tubular conductor.

[0019] Further, the threaded end face of the screw is set to be conical; the purpose is: when the screw is tightened, the small end of the cone can easily penetrate into the threaded hole of the pressing cone, which is convenient for installation.

[0020] Further, a third limiting step is provided at the lower end of the outside of the connecting body, and its purpose is to prevent the connecting body from disengaging from the conductor of other equipment when the connecting device is disengaged from the tubular conductor; during use, the connecting body will be supported by other objects and will not have a large displacement.

[0021] Compared with the existing technology, the beneficial effects of the present invention are:

[0022] 1. A fast connecting device for a tubular conductor electrically connects the conductor of other equipment and the tubular conductor through the connecting body and the guiding body. Compared with the existing welding connection, its current-carrying capacity is stronger, the installation is simple, and only by tightening the screw, the connection can be realized; and welding is not used, nor are there problems such as false soldering or insufficient welding area.

[0023] 2. A quick connection device for a tubular conductor, where the locking device is a compression cone and a screw; by rotating the screw, the connection between the connecting body and the guiding body is achieved, and the connection between the guiding body and the tubular conductor is also achieved. The design is quite ingenious and occupies less space; and the electrical connection is realized through the first contact body and the second contact body, with high stability, not easy to fall off, and convenient for disassembly. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram after the assembly of a quick connection device for a tubular conductor;

[0025] Figure 2 It is a schematic structural diagram of the conductor of other equipment;

[0026] Figure 3 It is a schematic structural diagram of a tubular conductor;

[0027] Figure 4 It is a schematic structural diagram of a connecting body;

[0028] Figure 5 It is a schematic structural diagram of a guiding body;

[0029] Figure 6 It is a schematic structural diagram of a compression cone.

[0030] Reference numerals: 1 - connecting body, 2 - conductor of other equipment, 3 - guiding body, 4 - tubular conductor, 11 - first groove, 12 - first contact body, 31 - horizontal part, 32 - vertical part, 13 - semi-through hole, 14 - second groove, 15 - second contact body, 33 - limiting groove, 16 - third limiting step, 17 - counterbore, 18 - first through hole, 34 - second through hole, 35 - inner hole, 5 - compression cone, 6 - screw, 19 - transition arc, 36 - large arc, 131 - limiting hole, 37 - first limiting step, 38 - guiding groove, 51 - second limiting step, 351 - clamping step. Detailed Embodiment

[0031] It should be noted that relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0032] The features and performance of the present invention will be further described in detail below in conjunction with embodiments.

[0033] Embodiment 1

[0034] Please refer to Figure 1-6 , a quick connection device for a tubular conductor, comprising:

[0035] A connecting body 1, which is used to connect with a conductor 2 of other devices; the connecting body 1 is electrically connected to the conductor 2 of other devices to achieve current transmission;

[0036] A guiding body 3, which is used to connect the tubular conductor 4 with the connecting body 1; one end of the guiding body 3 is electrically connected to the tubular conductor 4, and the other end is electrically connected to the connecting body 1 to achieve current transmission;

[0037] A locking device, which connects the connecting body 1, the guiding body 3 and the tubular conductor 4, and presses the connecting body 1 and the guiding body 3 against the tubular conductor 4 so that they do not fall off; in use, first connect the guiding body 3 with the tubular conductor 4, then install it with the connecting body 1 through the locking device, and then connect the connecting body 1 with the conductor 2 of other devices.

[0038] At least one first groove 11 is transversely formed on the outer side of the connector 1, and a first contact body 12 with electrical conductivity is placed in the first groove 11; the connector 1 is inserted into the conductor 2 of other devices, and the first contact body 12 electrically connects the connector 1 and the conductor 2 of other devices, forming a current-carrying capacity between the connector 1 and the conductor 2 of other devices; in this embodiment, the first groove 11 is arranged in the circumferential direction; there are two first grooves 11 in total, the connector 1 is cylindrical, and the first groove 11 is an annular groove arranged on the connector 1; the first contact body 12 is installed in the first groove 11, and the size of the first contact body 12 after installation is slightly larger than the outer diameter of the connector 1, and the outer diameter of the connector 1 is slightly smaller than the inner diameter of the conductor 2 of other devices; it is ensured that after the connector 1 is inserted into the conductor 2 of other devices, the first contact body 12 will deform, and be tightly connected to the connector 1 and the conductor 2 of other devices to form a certain electrical conductivity and current-carrying capacity.

[0039] The guiding body 3 is in a T shape and includes a transverse portion 31 and a vertical portion 32; the vertical portion 32 is used for being inserted into the tubular conductor 4 to connect with the tubular conductor 4, and the transverse portion 31 plays a limiting role; the transverse portion 31 and the vertical portion 32 are perpendicularly arranged and in a T shape; the diameter of the vertical portion 32 has a clearance fit with the inner diameter of the tubular conductor 4; after the vertical portion 32 is inserted into the tubular conductor 4, the tubular conductor 4 abuts against the lower end surface of the transverse portion 31 to prevent the guiding body 3 from falling off; both the transverse portion 31 and the vertical portion 32 are cylindrical; according to different current magnitudes, the guiding body 3 can be made of a metal material or a non-metal material; the guiding body 3 is in reliable contact with the tubular conductor 4 under the action of the pressing cone 5; the guiding body 3 and the connector 1 are in reliable contact under the action of the screw 6; when a metal material is selected, a part of the current can be transmitted through the tubular conductor 4, the guiding body 3, the connector 1, the first contact body 12 and the conductor 2 of other devices to form a current flow, and another part of the current can be transmitted through the tubular conductor 4, the second contact body 15, the connector 1, the first contact body 12 and the conductor 2 of other devices to form a current flow, thus forming a double insurance for the entire current flow. Under the action of the two paths, the current-carrying area of the conductor can be fully increased without increasing additional costs, and the temperature rise speed of the conductor can be reduced.

[0040] A semi-through hole 13 for inserting the guiding body 3 and the tubular conductor 4 is formed in the connecting body 1. At least one second groove 14 is horizontally formed in the semi-through hole 13, and a second contact body 15 with electrical conductivity is placed in the second groove 14. The tubular conductor 4 and the connecting body 1 are inserted into the semi-through hole 13, and the second contact body 15 electrically connects the tubular conductor 4 and the connecting body 1 to form a current-carrying capacity between the connecting body 1 and the tubular conductor 4. After the second contact body 15 is installed in the second groove 14 and the tubular conductor 4 is inserted into the semi-through hole 13, the second contact body 15 will deform. In this embodiment, the number of the second grooves 14 is one. The inner diameter of the semi-through hole 13 has an interference fit with the diameter of the horizontal part 31 of the guiding body 3, and its function is to make the second contact body 15 have the same contact force with the tubular conductor 4 around. Preferably, the distance from the upper surface of the second groove 14 to the upper surface of the semi-through hole 13 should be greater than the thickness of the horizontal part 31, ensuring that after complete installation, the second groove 14 is completely blocked by the side wall of the tubular conductor 4, that is, ensuring that the second contact body 15 in the second groove 14 is completely in contact with the side wall of the tubular conductor 4 and ensuring uniform stress on the tubular conductor 4.

[0041] The first contact body 12 and the second contact body 15 are elastic devices. The first contact body 12 and the second contact body 15 form a contact pressure between two contact surfaces through elastic deformation. The first contact body 12 and the second contact body 15 are preferably spring fingers or watchband fingers to ensure reliable contact.

[0042] A limiting groove 33 is formed on the outer side of the vertical part 32 of the horizontal part 31. After the end of the tubular conductor 4 is fitted with the limiting groove 33, the tubular conductor 4 is positioned by the outer diameter of the tubular conductor 4. The limiting groove 33 is an annular groove formed by the horizontal part 31 closely adjacent to the vertical part 32. The outer diameter of the limiting groove 33 is designed to match the outer diameter of the tubular conductor 4, and the outer diameter of the horizontal part 31 of the guiding body 3 is designed to match the semi-through hole 13 of the connecting body 1, so as to ensure that when the wall thickness of the tubular conductor 4 has a deviation, the entire connecting device always offsets with the offset of the outer diameter of the tubular conductor 4. Because when general manufacturers design the tubular conductor 4, they usually design it based on the outer diameter of the tubular conductor 4, but the wall thickness of the tubular conductor 4 is not uniformly designed. Therefore, making the outer diameter of the limiting groove 33 consistent with the outer diameter of the tubular conductor 4 plays a positioning role and ensures the stable fixation of the tubular conductor 4. If outer diameter positioning is not adopted, during the tightening process of the screw 6, due to the deviation of the wall thickness of the tubular conductor 4, the tubular conductor 4 will deviate, causing the entire connecting device to be in an eccentric state and problems such as poor contact, resulting in too high temperature of the connecting device and affecting the use effect.

[0043] A step is provided at the lower end of the connecting body 1; a first limiting device for restricting the transitional rotation of the guiding body 3 and the connecting body 1 is provided at the end face of the semi-through hole 13 and the end face of the transverse portion 31; through the setting of the first limiting device, the transitional rotation of the guiding body 3 and the connecting body 1 is restricted; preferably, the first limiting device includes a limiting hole 131 provided at the end face of the semi-through hole 13 and a first limiting step 37 provided on the end face of the transverse portion 31 and mating with the limiting hole 131, and there is at least one of the limiting hole 131 and the first limiting step 37, and the number of the limiting hole 131 and the first limiting step 37 is the same; in this embodiment, the number of the limiting hole 131 and the first limiting step 37 is one, and the limiting hole 131 and the first limiting step 37 are arranged at a position deviating from the axis.

[0044] A counterbore 17 is provided in the connecting body 1, and the counterbore 17 communicates with the semi-through hole 13 through a first through hole 18; a second through hole 34 is provided in the transverse portion 31 of the guiding body 3, and an inner hole 35 is provided in the vertical portion 32, and one end of the inner hole 35 is a large end and the other end is a small end; the small end of the inner hole 35 communicates with the second through hole 34; the locking device is a pressing cone 5 and a screw 6, and an internal threaded hole matching with the screw 6 is provided in the pressing cone 5; the pressing cone 5 is installed in the inner hole 35, and the screw 6 is inserted from the counterbore 17, sequentially passes through the first through hole 18, the second through hole 34 and the inner hole 35 and then is threadedly connected with the pressing cone 5. As the screw 6 continues to rotate, the pressing cone 5 moves inward in the inner hole 35 towards the small end of the inner hole 35, and the vertical portion 32 deforms and expands outward, so that the guiding body 3, the tubular conductor 4 and the connecting body 1 form a rigid connection; through the cooperation of the screw 6 and the pressing cone 5, not only the connecting body 1 is connected to the guiding body 3, but also the side wall of the guiding body 3 expands to apply pressure to the tubular conductor 4, so that the tubular conductor 4, the guiding body 3 and the connecting body 1 form a rigid connection.

[0045] The inner hole 35 is in a frustum shape, and a second limiting device for restricting the rotation of the pressing cone 5 is provided on the inner hole 35 and the pressing cone 5; the inner hole 35 can be set in other shapes, such as a frustum shape with a small upper part and a large lower part, and the shape and size of the pressing cone 5 are consistent with those of the inner hole 35, ensuring that the pressing cone 5 can move up and down in the inner hole 35 to squeeze the side wall of the guiding body 3; in this embodiment, the inner hole 35 is in a frustum shape. Therefore, in order to prevent the pressing cone 5 from rotating in the inner hole 35, a second limiting device is provided to play a limiting role, so as to ensure that when the screw 6 rotates, the pressing cone 5 does not rotate but moves up and down; preferably, the second limiting device includes a guiding groove 38 provided in the inner hole 35 and a second limiting step 51 provided on the surface of the pressing cone 5 and mating with the guiding groove 38; the width of the second limiting step 51 is smaller than the width of the guiding groove 38, ensuring that the pressing cone 5 can move up and down normally.

[0046] One end of the connecting body 1 away from the semi-through hole 13 is provided with a transition arc 19 for guiding; on the end face of the transverse part 31 of the guiding body 3, there is a large arc 36 for guiding and preventing the sudden change of the second contact body 15; the main function of the transition arc 19 is to play a guiding role when the connecting body 1 is installed on the conductor of other equipment; the large arc 36 is arranged at the transition between the transverse part 31 and the vertical part 32 of the guiding body 3; on the one hand, its purpose is: when the guiding body 3 is installed on the connecting body 1, it plays a guiding role, and on the other hand: during the connection process, under the action of the large arc 36, the second contact body 15 is gradually pressed tightly, preventing the second contact body 15 from being damaged when the pressing force suddenly changes; it reduces the processing time of the tubular conductor 4 when the connecting device is installed on the tubular conductor 4, thus accelerating the installation speed.

[0047] An inward clamping step 351 is arranged in the inner hole 35 of the guiding body 3, and the clamping step 351 prevents the pressing cone 5 from falling; the height of the clamping step 351 is greater than the gap between the vertical part 32 and the tubular conductor 4.

[0048] The threaded end face of the screw 6 is set to be conical; its purpose is: when the screw 6 is tightened, the small end of the cone can easily penetrate into the threaded hole of the pressing cone 5, which is convenient for installation; during the installation process, the screw 6 must be tightened because this connecting device is used for passing large currents. If it is not tightened, vibration will occur, causing the first contact body 12 and the second contact body 15 to vibrate, making the first contact body 12 and the second contact body 15 suffer fatigue and thus reducing their service life.

[0049] A third limiting step 16 is arranged at the lower end outside the connecting body 1, and its purpose is to prevent the connecting body 1 from disengaging from the conductor of other equipment when the connecting device disengages from the tubular conductor 4; during use, the connecting body 1 will be supported by other objects and will not have a large displacement.

[0050] The specific installation method is as follows:

[0051] At the factory, the pressing cone 5 has been installed in the inner hole 35 of the guiding body 3; the first contact body 12 and the second contact body 15 have been installed on the connecting body 1.

[0052] During on-site installation:

[0053] First, the guiding body 3 with the pressing cone 5 is sleeved on the tubular conductor 4; the tubular conductor 4 is inserted into the limiting groove 33;

[0054] Secondly, the screw 6 passes through the first through hole 18, the second through hole 34 and the inner hole 35 in sequence and is threadedly connected to the pressing cone 5; preferably, when the screw 6 is installed, flat washers and spring washers can also be added to prevent the screw 6 from rotating during use and causing the connection to loosen;

[0055] Next, tighten the screw 6; during the tightening process of the screw 6, the pressing cone 5 compresses the vertical part 32 of the guide body 3, causing the vertical part 32 to deform. Finally, the pressing cone 5, the guide body 3, the contact body and the tubular conductor 4 form a rigid connection;

[0056] Finally, insert the upper end of the connecting body 1 into the conductor of other devices to complete the connection.

[0057] The above embodiments only represent the specific implementation manners of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the protection scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the technical solution of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application.

Claims

1. A quick connection device for a tubular conductor, characterized in that, it includes: a connecting body (1) for connecting with a conductor (2) of other devices; a guiding body (3) for connecting the tubular conductor (4) with the connecting body (1); a locking device for connecting the connecting body (1), the guiding body (3) and the tubular conductor (4); at least one first groove (11) is transversely formed on the outer side of the connecting body (1), and a first contact body (12) with electrical conductivity is placed in the first groove (11); the connecting body (1) is inserted into the conductor (2) of other devices, and the first contact body (12) electrically connects the connecting body (1) with the conductor (2) of other devices, forming a current-carrying capacity between the connecting body (1) and the conductor (2) of other devices; the guiding body (3) is in a T shape and includes a transverse part (31) and a vertical part (32); the vertical part (32) is used for inserting into the tubular conductor (4) to connect with the tubular conductor (4), and the transverse part (31) plays a limiting role; a semi-through hole (13) for inserting the guiding body (3) and the tubular conductor (4) is formed in the connecting body (1), at least one second groove (14) is transversely formed in the semi-through hole (13), and a second contact body (15) with electrical conductivity is placed in the second groove (14); the tubular conductor (4) and the connecting body (1) are inserted into the semi-through hole (13), and the second contact body (15) electrically connects the tubular conductor (4) with the connecting body (1), forming a current-carrying capacity between the connecting body (1) and the tubular conductor (4); a third limiting step (16) is arranged at the lower end of the connecting body (1); a first limiting device for restricting the transitional rotation of the guiding body (3) and the connecting body (1) is arranged at the end face of the semi-through hole (13) and the end face of the transverse part (31); a counterbore (17) is formed in the connecting body (1), and the counterbore (17) communicates with the semi-through hole (13) through a first through hole (18); a second through hole (34) is formed in the transverse part (31) of the guiding body (3), an inner hole (35) is arranged in the vertical part (32), one end of the inner hole (35) is a large end and the other end is a small end; the small end of the inner hole (35) communicates with the second through hole (34); the locking device is a pressing cone (5) and a screw (6), and an internal thread hole matched with the screw (6) is arranged in the pressing cone (5); the pressing cone (5) is installed in the inner hole (35), the screw (6) is inserted from the counterbore (17), sequentially passes through the first through hole (18), the second through hole (34) and the inner hole (35), and is threadedly connected with the pressing cone (5). As the screw (6) continues to rotate, the pressing cone (5) moves inward to the small end of the inner hole (35) in the inner hole (35), and the vertical part (32) deforms and expands outward, so that the guiding body (3), the tubular conductor (4) and the connecting body (1) form a rigid connection.

2. The quick connection device for a tubular conductor according to claim 1, characterized in that, The first contact body (12) and the second contact body (15) are elastic devices; the first contact body (12) and the second contact body (15) form a contact pressure between two contact surfaces through elastic deformation.

3. A quick connection device for a tubular conductor according to claim 2, characterized in that, a limiting groove (33) is provided on the outer side of the vertical portion (32) of the transverse portion (31); after the end of the tubular conductor (4) is fitted with the limiting groove (33), the tubular conductor (4) is positioned by the outer diameter of the tubular conductor (4).

4. A quick connection device for a tubular conductor according to claim 3, characterized in that, the inner hole (35) is frustum-shaped, and a second limiting device for restricting the rotation of the pressing cone (5) is provided on the inner hole (35) and the pressing cone (5).

5. A quick connection device for a tubular conductor according to claim 4, characterized in that, a transition arc (19) for guiding is provided at one end of the connecting body (1) away from the semi-through hole (13); a large arc (36) for guiding and preventing sudden change of the second contact body (15) is provided on the end surface of the transverse portion (31) of the guiding body (3); the first limiting device includes a limiting hole (131) provided on the end surface of the semi-through hole (13) and a first limiting step (37) provided on the end surface of the transverse portion (31) and mating with the limiting hole (131), there is at least one of the limiting hole (131) and the first limiting step (37), and the number of the limiting hole (131) and the first limiting step (37) is the same; the second limiting device includes a guiding groove (38) provided in the inner hole (35) and a second limiting step (51) provided on the surface of the pressing cone (5) and mating with the guiding groove (38); a clamping step (351) is provided inwardly in the inner hole (35) of the guiding body (3), and the clamping step (351) prevents the pressing cone (5) from falling off; the threaded end surface of the screw (6) is tapered.

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