Manual overhead conductor telescoping and expanding device

Abstract

The invention discloses a manual telescopic expansion device for overhead conductors, and aims to provide the manual telescopic expansion device for the overhead conductors, which can expand two parallel overhead conductors, is convenient to operate and can realize single-person operation. A telescopic rod is arranged at the upper end of the holding rod and comprises a hollow main rod and hollow sliding rods arranged at the two ends of the hollow main rod in a sliding mode. The telescopic driving mechanism drives the hollow sliding rod to stretch out and draw back; the wire clamping grooves with downward openings are formed in the hollow sliding rods in a one-to-one correspondence manner; the vacant locking mechanisms are in one-to-one correspondence with the hollow sliding rods, each vacant locking mechanism comprises a floating plate capable of being arranged at the top in the wire clamping groove in a lifting mode and an eccentric wheel rotationally arranged on the corresponding hollow sliding rod, the floating plates are in linkage with the eccentric wheels, the floating plates comprise a high-position state and a low-position state, and when the telescopic rods are in the contraction state and the floating plates are in the low-position state, the hollow sliding rods are locked. The eccentric wheel abuts against the inner wall of the hollow main rod so that the hollow sliding rod can stretch out to be limited.

Description

Technical Field

[0001] The invention relates to the field of electric power construction tools, and in particular to a manual overhead conductor telescopic expansion device. Background Art

[0002] In the field of power construction, it is necessary to erect a new pole at a certain position in the overhead wire. In this case, in order to avoid collision with the overhead wire during the pole erection operation, it is necessary to pull two parallel overhead wires apart to increase the distance between the overhead wires, provide sufficient working space for the pole erection operation, and ensure the safety of the operation. At present, the operation methods of pulling two overhead wires apart generally include the following: First, use two electrified vehicles to operate, the electrified vehicles are parked at the two overhead wires, and the construction personnel pull the overhead wires apart through the electrified vehicles. This operation method requires the cooperation of the electrified vehicles and several construction personnel, which is inconvenient to operate; second, tie an insulating work rope on the two overhead wires, and two construction personnel pull the overhead wires apart on the ground, and then tie an insulating rod on the two overhead wires to open the two overhead wires. This operation method often requires several operators to work together to open and position the overhead wires, and there are great safety hazards. Summary of the invention

[0003] The purpose of the present invention is to provide a manual overhead conductor telescopic expansion device which can expand two parallel overhead conductors and is easy to operate and can be operated by one person.

[0004] The technical solution of the present invention is: A manual overhead conductor telescopic expansion device, comprising: A gripping rod, the upper end of which is provided with a telescopic rod, the telescopic rod comprising a hollow main rod and hollow sliding rods slidably arranged at both ends of the hollow main rod; A telescopic driving mechanism drives the hollow sliding rod to extend and retract; The wire clamping grooves with openings facing downwards are arranged on the hollow sliding rods in a one-to-one correspondence; The vacant locking mechanism corresponds to the hollow sliding rod one by one, and includes a floating plate that can be raised and lowered and arranged at the top of the wire clamping slot and an eccentric wheel that is rotatably arranged on the hollow sliding rod. The floating plate and the eccentric wheel are linked, and the floating plate includes a high position and a low position. When the telescopic rod is in a retracted state, when the floating plate is in a low position, the eccentric wheel abuts against the inner wall of the hollow main rod to limit the extension of the hollow sliding rod; when the floating plate is in a high position, the eccentric wheel is separated from the inner wall of the hollow main rod. The specific use of a manual overhead wire telescopic expansion device of this scheme is as follows, First, the telescopic driving mechanism drives the hollow sliding rod to retract, so that the telescopic rod is in a retracted state; Second, lift the telescopic rod by holding the rod so that the telescopic rod is above two parallel overhead wires; Third, one of the overhead wires is placed in a wire-holding groove on a hollow sliding rod, and the other overhead wire is placed in a wire-holding groove on another hollow sliding rod; then, the telescopic rod is driven downward by the holding rod, so that a manual overhead wire telescopic expansion device is hung on two parallel overhead wires, or a part of the weight of a manual overhead wire telescopic expansion device is applied to two parallel overhead wires. During this process, the overhead wires will abut against the floating plate and push the floating plate upward until the floating plate abuts against the inner top wall of the wire-holding groove. At this time, the floating plate is in a high position, and the eccentric wheel is separated from the inner wall of the hollow main rod, thereby releasing the extension restriction of the hollow sliding rod and allowing the hollow sliding rod to extend normally; If during the operation of the third step, the operator does not place the overhead wire in the corresponding wire-clamping slot, the floating plate is in a low position, and the eccentric wheel is against the inner wall of the hollow main pole, so that the extension of the hollow sliding rod is limited; thereafter, the telescopic drive mechanism cannot drive the hollow sliding rod to extend, thereby forcing the operator to place the overhead wire in the corresponding wire-clamping slot to ensure that the hollow sliding rod can be driven to extend through the telescopic drive mechanism next, thereby driving the two parallel overhead wires to open, and keeping the two parallel overhead wires stably open. Based on this, it can effectively solve the problem that the operator does not place the overhead wire in the corresponding wire-clamping slot, but the overhead wire is stuck in other parts, and the subsequent telescopic drive mechanism drives the two parallel overhead wires to open, and the overhead wire cannot be guaranteed to be in a stable open state, and the overhead wire is separated from the manual overhead wire telescopic expansion device to reset during the pole erection operation, and collides with the pole.

[0005] Fourth, the hollow sliding rod is extended by the telescopic drive mechanism, thereby driving the two parallel overhead wires to be spread apart. The manual overhead wire telescopic expansion device of the present solution can spread apart the two parallel overhead wires, and is easy to operate, and can be operated by one person.

[0006] Preferably, a linkage member is arranged on the eccentric wheel; A vertical guide hole is arranged on the hollow sliding rod, in which a vertical guide rod is slidably arranged, and a floating plate is fixed to the lower end of the vertical guide rod; A linkage push rod located below the linkage member and fixed on the vertical guide rod; When the floating plate is in a high position, the linkage push rod abuts against the linkage member and drives the eccentric wheel to rotate upward, so that the eccentric wheel is separated from the inner wall of the hollow main rod.

[0007] Preferably, a sealing mechanism corresponding to the wire clamping slots is also included, which includes: A top rod, fixed on the hollow main rod; A sealing sliding rod, slidably disposed on the corresponding hollow sliding rod, and a side stopper cooperating with the ejector rod is disposed on the sealing sliding rod; and A sealing elastic member driving a sealing sliding rod; When the hollow sliding rod is extended outward from the contracted state, the sealing sliding rod gradually extends into the notch of the wire clamping groove under the action of the sealing elastic member; When the telescopic rod is in the retracted state, the top rod is against the side stopper, the sealing sliding rod is staggered with the notch of the wire clamping slot, and the notch of the wire clamping slot is in the open state. Based on this, when the telescopic rod is in the retracted state, the notch of the wire clamping slot is in the open state, so it will not affect the operator's need to place the overhead wire in the corresponding wire clamping slot; in the process of the hollow sliding rod extending outward from the retracted state, the sealing sliding rod gradually extends into the notch of the wire clamping slot under the action of the sealing elastic member, thereby restricting the overhead wire in the corresponding wire clamping slot, preventing the overhead wire from falling out, and further ensuring that the overhead wire is in a stable open state.

[0008] Preferably, the telescopic drive mechanism comprises: A screw rod parallel to the telescopic rod is rotatably arranged on the hollow main rod, and the screw rod comprises two threaded sections with opposite spiral directions; The drive nuts are arranged on the threaded segments in a one-to-one correspondence, and the drive nuts are connected to the corresponding hollow sliding rods through connecting elements; The driving rod disposed on the holding rod is rotated, and the upper end of the driving rod is connected to the screw rod through the upper bevel gear mechanism, and the lower end of the driving rod is close to the lower end of the holding rod. In this way, the operator can drive the screw rod to rotate through the driving rod to drive the two driving nuts to separate or approach each other along the screw rod, thereby driving the hollow sliding rod to extend or retract.

[0009] Preferably, the telescopic driving mechanism further comprises a driving handle rotatably arranged at the lower part of the gripping rod, and the driving handle is connected to the lower end of the driving rod through a lower bevel gear mechanism. Thus, the driving handle can be rotated to drive the rod driving screw to rotate, so as to drive the two driving nuts to separate or approach each other along the screw, thereby driving the hollow sliding rod to extend or retract.

[0010] Preferably, connecting seats are provided at both ends of the screw, the connecting seats are fixed on the hollow main rod, the screw is rotatably connected to the connecting seats through bearings, a transverse guide hole is provided on the connecting seat, and the connecting element includes a connecting slide rod parallel to the screw, and the connecting slide rod is slidably arranged in the transverse guide hole.

[0011] Preferably, the holding rod is a hollow rod, and the driving rod is located in the inner hole of the holding rod, so that the compactness of the structure can be improved.

[0012] Preferably, a wire-holding piece is provided at the lower portion of the outer wall of the hollow sliding rod, the wire-holding piece is located outside the hollow main rod, and a wire-holding groove is provided on the wire-holding piece.

[0013] Preferably, a limit block is provided on the outer side of the hollow sliding rod, and the limit block is located outside the hollow main rod. In this way, the position of the contraction of the hollow sliding rod can be accurately controlled.

[0014] Preferably, the hollow main rod and the hollow sliding rod of the telescopic rod are made of plastic.

[0015] The beneficial effects of the present invention are: it can spread out two parallel overhead wires, and the operation is convenient, and single-person operation can be realized. On the other hand, it can also effectively solve the problem that the overhead wires are stuck in other parts because the operator does not place the overhead wires in the corresponding clamping grooves, and the overhead wires are stuck in other parts, which leads to the subsequent expansion and contraction drive mechanism driving the two parallel overhead wires to spread out, and the overhead wires cannot be guaranteed to be in a stable spread state, and the overhead wires are separated from the manual overhead wire expansion device during the pole erection operation, and collide with the pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic structural diagram of a manual overhead conductor telescopic expansion device.

[0017] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0018] Figure 3 The present invention is a schematic diagram of a partial structure of a manual overhead conductor telescopic expansion device after the overhead conductor is placed in a wire clamping groove.

[0019] In the figure: Hold the bar 1; Telescopic rod 2, hollow main rod 2.1, hollow sliding rod 2.2, side wall opening 2.3; Wire clamping piece 3, wire clamping slot 3.1; Telescopic driving mechanism 4, screw rod 4.1, threaded section 4.2, driving nut 4.3, upper bevel gear mechanism 4.4, driving rod 4.5, driving handle 4.6, lower bevel gear mechanism 4.7, connecting seat 4.8, connecting slide rod 4.9; Sealing mechanism 5, ejector rod 5.1, sealing sliding rod 5.2, side stopper 5.3, guide sleeve 5.4, sealing elastic member 5.5, and protrusion 5.6; Idle locking mechanism 6, floating plate 6.1, eccentric wheel 6.2, linkage push rod 6.3, linkage member 6.4, vertical guide rod 6.5, stopper 6.6; Overhead wires7. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Specific embodiment 1, as Figure 1 , Figure 2 As shown, a manual overhead conductor telescopic expansion device includes a holding rod 1, a telescopic driving mechanism 4, a wire clamping groove 3.1 and an idle locking mechanism 6.

[0021] A telescopic rod 2 is provided at the upper end of the gripping rod 1, and the telescopic rod 2 is perpendicular to the gripping rod 1. The telescopic rod 2 includes a hollow main rod 2.1 and hollow sliding rods 2.2 slidably arranged at both ends of the hollow main rod 2.1. The middle part of the hollow main rod 2.1 is fixed to the upper end of the gripping rod 1. The telescopic rod 2 includes a retracted state and an extended state, wherein the retracted state means that the hollow sliding rod 2.2 slides into the hollow main rod 2.1 and retracts into place; the extended state means that the hollow sliding rod 2.2 extends out of the hollow main rod 2.1 and into place.

[0022] The wire clamping slot 3.1 corresponds to the hollow sliding rod 2.2 one by one. The wire clamping slot 3.1 is arranged on the corresponding hollow sliding rod 2.2, and the wire clamping slot 3.1 is kept outside the hollow main rod 2.1. The opening of the wire clamping slot 3.1 faces downward, that is, the notch of the wire clamping slot 3.1 faces downward.

[0023] The telescopic driving mechanism 4 drives the hollow sliding rod 2.2 to telescope.

[0024] The idle locking mechanism 6 corresponds to the hollow sliding rod 2.2 one by one. The idle locking mechanism 6 includes a floating plate 6.1 and an eccentric wheel 6.2. The eccentric wheel 6.2 is rotatably arranged on the hollow sliding rod 2.2. In this embodiment, the eccentric wheel 6.2 is located in the inner hole of the hollow sliding rod 2.2, and a side wall opening 2.3 corresponding to the eccentric wheel 6.2 is provided on the side wall of the hollow sliding rod 2.2. A part of the eccentric wheel 6.2 extends into the side wall opening 2.3 so that the eccentric wheel 6.2 can contact the inner wall of the hollow main rod 2.1. When the telescopic rod 2 is in the contracted state, the eccentric wheel 6.2 is located in the inner hole of the hollow main rod 2.1, and the center of the eccentric wheel 6.2 and the outer end of the hollow sliding rod 2.2 are located on the same side of the rotation axis of the eccentric wheel 6.2.

[0025] The floating plate 6.1 is arranged at the top of the wire-gripping groove so as to be able to be raised and lowered. The floating plate 6.1 is linked with the eccentric wheel 6.2. Specifically, the idle locking mechanism also includes a linkage member 6.4 arranged on the eccentric wheel, a vertical guide hole arranged on the hollow sliding rod, and a linkage push rod 6.3 located below the linkage member. The vertical guide hole connects the inner top wall of the corresponding wire-gripping groove 3.1 and the inner hole of the hollow sliding rod 2.2. A vertical guide rod 6.5 is slidingly arranged in the vertical guide hole, and the floating plate is fixed to the lower end of the vertical guide rod. A stopper 6.6 is provided on the vertical guide rod 6.5, and the stopper is located in the inner hole of the hollow sliding rod 2.2 above the vertical guide hole, and the stopper is against the inner wall of the inner hole of the hollow sliding rod 2.2. In this embodiment, the linkage push rod 6.3 is located in the inner hole of the hollow sliding rod 2.2. The linkage push rod 6.3 is fixed on the vertical guide rod 6.5.

[0026] The floating plate 6.1 has a high position and a low position, wherein the high position of the floating plate 6.1 means that the floating plate 6.1 is against the inner top wall of the wire clamping groove 3.1; the low position of the floating plate 6.1 means that the floating plate moves down to a specified position, and at this time there is a gap between the floating plate and the inner top wall of the wire clamping groove 3.1; specifically in this embodiment, the low position of the floating plate 6.1 means that the stopper on the vertical guide rod 6.5 is against the inner wall of the inner hole of the hollow sliding rod 2.2, and at this time there is a gap between the floating plate and the inner top wall of the wire clamping groove 3.1, and the floating plate 6.1 is close to the inner top wall of the wire clamping groove 3.1. When the floating plate 6.1 is in the low position, the linkage push rod 6.3 is separated from the linkage member 6.4.

[0027] like Figure 2 As shown, when the telescopic rod 2 is in the retracted state and the floating plate 6.1 is in the low position, the eccentric wheel 6.2 rests against the inner wall of the hollow main rod 2.1 under the action of its own weight, so that the extension of the hollow sliding rod 2.2 is restricted. At this time, the hollow sliding rod 2.2 cannot extend out of the hollow main rod 2.1, and the hollow sliding rod 2.2 can be retracted into the hollow main rod 2.1.

[0028] like Figure 3 As shown, when the telescopic rod 2 is in the retracted state and the floating plate 6.1 is in the high position, the linkage push rod 6.3 abuts against the linkage member 6.4 and drives the eccentric wheel 6.2 to rotate upward, so that the eccentric wheel 6.2 is separated from the inner wall of the hollow main rod 2.1, thereby releasing the extension restriction of the hollow sliding rod 2.2. At this time, the hollow sliding rod 2.2 can normally extend out of the hollow main rod 2.1, and the hollow sliding rod 2.2 can be retracted into the hollow main rod 2.1.

[0029] The specific use of a manual overhead conductor telescopic expansion device of this embodiment is as follows: First, the telescopic drive mechanism 4 drives the hollow sliding rod 2.2 to contract, so that the telescopic rod 2 is in a contracted state.

[0030] Second, the telescopic rod 2 is lifted by holding the rod 1 so that the telescopic rod 2 is located above two parallel overhead wires.

[0031] Third, one of the overhead conductors 7 is placed in a wire-holding groove 3.1 on one hollow sliding rod 2.2, and the other overhead conductor is placed in a wire-holding groove 3.1 on another hollow sliding rod 2.2.

[0032] Then, if Figure 3As shown, by driving the telescopic rod 2 downward by the holding rod 1, a manual overhead wire telescopic expansion device is hung on two parallel overhead wires, or a part of the weight of a manual overhead wire telescopic expansion device is applied to two parallel overhead wires. During this process, the overhead wires will abut against the floating plate 6.1 and push the floating plate 6.1 upward until the floating plate 6.1 abuts against the inner top wall of the wire clamping groove 3.1. At this time, the eccentric wheel 6.2 is separated from the inner wall of the hollow main rod 2.1, thereby releasing the extension restriction of the hollow sliding rod 2.2, so that the hollow sliding rod 2.2 can be extended normally; If during the operation of the third step, the operator does not place the overhead wire in the corresponding clamping groove 3.1, the floating plate 6.1 is in a low position, and the eccentric wheel 6.2 will be against the inner wall of the hollow main pole 2.1, so that the extension of the hollow sliding rod 2.2 is limited; thereafter, the telescopic drive mechanism 4 cannot drive the hollow sliding rod 2.2 to extend, thereby forcing the operator to place the overhead wire in the corresponding clamping groove 3.1 to ensure that the hollow sliding rod 2.2 can be driven to extend through the telescopic drive mechanism 4, thereby driving the two parallel overhead wires to open, and keeping the two parallel overhead wires stably open. Based on this, it can effectively solve the problem that the operator does not place the overhead wire in the corresponding clamping groove 3.1, but the overhead wire is stuck in other parts, and the subsequent telescopic drive mechanism 4 drives the two parallel overhead wires to open, and the overhead wire cannot be guaranteed to be in a stable open state, and the overhead wire is separated from the manual overhead wire telescopic expansion device to reset during the pole erection operation, and collides with the pole. Of course, it can also effectively solve the problem that the subsequent telescopic driving mechanism 4 cannot drive the two parallel overhead wires to expand because the operator does not place the overhead wire in the corresponding wire clamping groove 3.1.

[0033] Fourth, the hollow sliding rod 2.2 is extended by the telescopic drive mechanism 4, thereby driving the two parallel overhead wires to be spread apart. The manual overhead wire telescopic expansion device of this embodiment can spread apart two parallel overhead wires, and is easy to operate, and can be operated by one person.

[0034] Specific embodiment 2, as Figure 1 , Figure 2 As shown, a manual overhead conductor telescopic expansion device includes a holding rod 1, a telescopic driving mechanism 4, a wire clamping groove 3.1, an idle locking mechanism 6 and a sealing mechanism 5.

[0035] A telescopic rod 2 is provided at the upper end of the gripping rod 1, and the telescopic rod 2 is perpendicular to the gripping rod 1. The telescopic rod 2 includes a hollow main rod 2.1 and hollow sliding rods 2.2 slidably arranged at both ends of the hollow main rod 2.1. The hollow sliding rod 2.2 and the hollow main rod 2.1 cannot rotate relative to each other. The middle part of the hollow main rod 2.1 is fixed to the upper end of the gripping rod 1. The telescopic rod 2 includes a retracted state and an extended state, wherein the retracted state refers to that the hollow sliding rod 2.2 slides into the hollow main rod 2.1 and retracts into place; the extended state refers to that the hollow sliding rod 2.2 extends out of the hollow main rod 2.1 and into place.

[0036] The wire clamping slot 3.1 corresponds to the hollow sliding rod 2.2 one by one. The wire clamping slot 3.1 is arranged on the corresponding hollow sliding rod 2.2, and the wire clamping slot 3.1 is kept outside the hollow main rod 2.1. The opening of the wire clamping slot 3.1 faces downward, that is, the notch of the wire clamping slot 3.1 faces downward.

[0037] The telescopic driving mechanism 4 drives the hollow sliding rod 2.2 to telescope.

[0038] The idle locking mechanism 6 corresponds to the hollow sliding rod 2.2 one by one. The idle locking mechanism 6 includes a floating plate 6.1, an eccentric wheel 6.2 and a driving elastic member. The eccentric wheel 6.2 is rotatably arranged on the hollow sliding rod 2.2. In this embodiment, the eccentric wheel 6.2 is located in the inner hole of the hollow sliding rod 2.2. A side wall opening 2.3 corresponding to the eccentric wheel 6.2 is provided on the side wall of the hollow sliding rod 2.2. A part of the eccentric wheel 6.2 extends into the side wall opening 2.3 so that the eccentric wheel 6.2 can contact the inner wall of the hollow main rod 2.1. The driving elastic member provides elastic force to drive the eccentric wheel 6.2 to rotate and abut against the inner wall of the hollow main rod 2.1. The driving elastic member is a torsion spring, a tension spring or a compression spring. In this embodiment, the driving elastic member is a torsion spring. When the telescopic rod 2 is in the retracted state, the eccentric wheel 6.2 is located in the inner hole of the hollow main rod 2.1, and the center of the eccentric wheel 6.2 and the outer end of the hollow sliding rod 2.2 are located on the same side of the rotation axis of the eccentric wheel 6.2.

[0039] The floating plate 6.1 is arranged at the top of the wire-cage slot so as to be able to be raised and lowered. The floating plate 6.1 is linked with the eccentric wheel 6.2. Specifically, the idle locking mechanism also includes a linkage member 6.4 arranged on the eccentric wheel, a vertical guide hole arranged on the hollow sliding rod, and a linkage push rod 6.3 located below the linkage member. The vertical guide hole connects the inner top wall of the corresponding wire-cage slot 3.1 and the inner hole of the hollow sliding rod 2.2. A vertical guide rod 6.5 is slidingly arranged in the vertical guide hole, and the floating plate is fixed to the lower end of the vertical guide rod. A stopper 6.6 is arranged on the vertical guide rod 6.5, and the stopper 6.6 is located in the inner hole of the hollow sliding rod 2.2 above the vertical guide hole, and the stopper is against the inner wall of the inner hole of the hollow sliding rod 2.2. In this embodiment, the linkage push rod 6.3 is located in the inner hole of the hollow sliding rod 2.2. The linkage push rod 6.3 is fixed on the vertical guide rod 6.5.

[0040] The floating plate 6.1 has a high position and a low position, wherein the high position of the floating plate 6.1 means that the floating plate 6.1 is against the inner top wall of the wire clamping groove 3.1; the low position of the floating plate 6.1 means that the floating plate moves down to a specified position, and at this time there is a gap between the floating plate and the inner top wall of the wire clamping groove 3.1; specifically in this embodiment, the low position of the floating plate 6.1 means that the stopper on the vertical guide rod 6.5 is against the inner wall of the inner hole of the hollow sliding rod 2.2, and at this time there is a gap between the floating plate and the inner top wall of the wire clamping groove 3.1, and the floating plate 6.1 is close to the inner top wall of the wire clamping groove 3.1. When the floating plate 6.1 is in the low position, the linkage push rod 6.3 is separated from the linkage member 6.4.

[0041] like Figure 2 As shown, when the telescopic rod 2 is in a retracted state and the floating plate 6.1 is in a low position, the eccentric wheel 6.2 is pressed against the inner wall of the hollow main rod 2.1 under the action of the driving elastic member, so that the extension of the hollow sliding rod 2.2 is restricted. At this time, the hollow sliding rod 2.2 cannot extend out of the hollow main rod 2.1, and the hollow sliding rod 2.2 can be retracted into the hollow main rod 2.1.

[0042] like Figure 3 As shown, when the telescopic rod 2 is in the retracted state and the floating plate 6.1 is in the high position, the linkage push rod 6.3 abuts against the linkage member 6.4 and drives the eccentric wheel 6.2 to rotate upward, so that the eccentric wheel 6.2 is separated from the inner wall of the hollow main rod 2.1, thereby releasing the extension restriction of the hollow sliding rod 2.2. At this time, the hollow sliding rod 2.2 can normally extend out of the hollow main rod 2.1, and the hollow sliding rod 2.2 can be retracted into the hollow main rod 2.1.

[0043] The sealing mechanism 5 corresponds to the wire clamping groove 3.1 one by one. The sealing mechanism 5 includes a top rod 5.1, a sealing sliding rod 5.2, a guide sleeve 5.4 and a sealing elastic member 5.5. The top rod 5.1 is fixed on the hollow main rod 2.1. Specifically, one end of the top rod 5.1 is fixed on the end of the hollow main rod 2.1, and the other end of the top rod 5.1 extends outward from the hollow main rod 2.1 along the telescopic direction of the telescopic rod 2. The sealing sliding rod 5.2 is slidably arranged on the corresponding hollow sliding rod 2.2. Specifically, the guide sleeve 5.4 is fixed on the corresponding hollow sliding rod 2.2, and the guide sleeve 5.4 remains located on the outside of the hollow main rod 2.1, and the sealing sliding rod 5.2 is slidably arranged in the guide sleeve 5.4. The sealing sliding rod 5.2 and the guide sleeve 5.4 cannot rotate relative to each other. The sliding direction of the hollow sliding rod 2.2 is parallel to the sliding direction of the hollow sliding rod 2.2. The sealing sliding rod 5.2 is provided with a side stopper 5.3 that cooperates with the top rod 5.1. The sealing sliding rod 5.2 is also provided with a protrusion 5.6. The sealing elastic member 5.5 drives the sealing sliding rod 5.2 to slide. In this embodiment, the sealing elastic member 5.5 is a spring, which is sleeved on the sealing sliding rod 5.2, and the sealing elastic member 5.5 is located between the guide sleeve 5.4 and the protrusion 5.6. In this embodiment, the side stopper 5.3, the guide sleeve 5.4, the sealing elastic member 5.5, the protrusion 5.6 and the wire clamping groove 3.1 are distributed in sequence along the sliding direction of the hollow sliding rod 2.2. The top rod 5.1 and the hollow main rod 2.1 are located on the same side of the side stopper 5.3.

[0044] When the hollow sliding rod 2.2 extends outward from the retracted state, the sealing sliding rod 5.2 gradually extends into the notch of the wire clamping groove 3.1 under the action of the sealing elastic member 5.5. When the telescopic rod 2 is in the retracted state, the top rod 5.1 abuts against the side stopper 5.3, the sealing sliding rod 5.2 is offset from the notch of the wire clamping groove 3.1, and the notch of the wire clamping groove 3.1 is in an open state. Based on this, when the telescopic rod 2 is in the retracted state, the notch of the wire clamping groove 3.1 is in an open state, so it will not affect the operator's need to place the overhead wire in the corresponding wire clamping groove 3.1.

[0045] The specific use of a manual overhead conductor telescopic expansion device of this embodiment is as follows: First, the telescopic driving mechanism 4 drives the hollow sliding rod 2.2 to retract, so that the telescopic rod 2 is in a retracted state; at this time, the notch of the wire clamping slot 3.1 is in an open state.

[0046] Second, the telescopic rod 2 is lifted by holding the rod 1 so that the telescopic rod 2 is located above two parallel overhead wires.

[0047] Third, one of the overhead conductors 7 is placed in a wire-holding groove 3.1 on one hollow sliding rod 2.2, and the other overhead conductor is placed in a wire-holding groove 3.1 on another hollow sliding rod 2.2.

[0048] Then, if Figure 3 As shown, by driving the telescopic rod 2 downward by the holding rod 1, a manual overhead wire telescopic expansion device is hung on two parallel overhead wires, or a part of the weight of a manual overhead wire telescopic expansion device is applied to two parallel overhead wires. During this process, the overhead wires will abut against the floating plate 6.1 and push the floating plate 6.1 upward until the floating plate 6.1 abuts against the inner top wall of the wire clamping groove 3.1. At this time, the eccentric wheel 6.2 is separated from the inner wall of the hollow main rod 2.1, thereby releasing the extension restriction of the hollow sliding rod 2.2, so that the hollow sliding rod 2.2 can be extended normally; If during the operation of the third step, the operator does not place the overhead wire in the corresponding clamping groove 3.1, the floating plate 6.1 is in a low position, and the eccentric wheel 6.2 will be against the inner wall of the hollow main pole 2.1, so that the extension of the hollow sliding rod 2.2 is limited; thereafter, the telescopic drive mechanism 4 cannot drive the hollow sliding rod 2.2 to extend, thereby forcing the operator to place the overhead wire in the corresponding clamping groove 3.1 to ensure that the hollow sliding rod 2.2 can be driven to extend through the telescopic drive mechanism 4, thereby driving the two parallel overhead wires to open, and keeping the two parallel overhead wires stably open. Based on this, it can effectively solve the problem that the operator does not place the overhead wire in the corresponding clamping groove 3.1, but the overhead wire is stuck in other parts, and the subsequent telescopic drive mechanism 4 drives the two parallel overhead wires to open, and the overhead wire cannot be guaranteed to be in a stable open state, and the overhead wire is separated from the manual overhead wire telescopic expansion device to reset during the pole erection operation, and collides with the pole. Of course, it can also effectively solve the problem that the subsequent telescopic driving mechanism 4 cannot drive the two parallel overhead wires to expand because the operator does not place the overhead wire in the corresponding wire clamping groove 3.1.

[0049] Fourth, the hollow sliding rod 2.2 is driven to extend through the telescopic drive mechanism 4, thereby driving the two parallel overhead wires to be spread apart. In the process of the hollow sliding rod 2.2 extending outward from the contracted state, the sealing sliding rod 5.2 gradually extends into the slot of the clamping groove 3.1 under the action of the sealing elastic member 5.5, thereby restricting the overhead wire in the corresponding clamping groove 3.1, preventing the overhead wire from falling out, and further ensuring that the overhead wire is in a stable spread state. A manual overhead wire telescopic expansion device of this embodiment can spread apart two parallel overhead wires, and is easy to operate, and can be operated by one person.

[0050] Specifically, Figure 1 , Figure 2As shown, a wire clamping member 3 is provided at the lower part of the outer wall of the hollow sliding rod 2.2. The wire clamping member 3 is in an inverted U shape and is located on the outer side of the hollow main rod 2.1, and a wire clamping groove 3.1 is provided on the wire clamping member 3. A sliding rod opening that cooperates with the sealing sliding rod 5.2 is provided on the wire clamping member 3, and the sliding rod opening is close to the notch of the wire clamping groove 3.1. In the process of the hollow sliding rod 2.2 extending outward from the contracted state, the sealing sliding rod 5.2 gradually extends into the notch of the wire clamping groove 3.1 through the sliding rod opening under the action of the sealing elastic member 5.5 until the protrusion abuts against the outer surface of the wire clamping member 3. At this time, the sealing sliding rod 5.2 blocks the notch of the wire clamping groove 3.1, restricting the overhead wires in the corresponding wire clamping groove 3.1 to prevent the overhead wires from coming out.

[0051] Further, such as Figure 1 , Figure 2 As shown, a stopper is provided on the outer side of the hollow sliding rod 2.2, and the stopper is located outside the hollow main rod 2.1. When the stoppers on the two hollow sliding rods 2.2 are against the end surface of the hollow main rod 2.1, the telescopic rod 2 is in a telescopic state.

[0052] Furthermore, the hollow main rod 2.1 and the hollow sliding rod 2.2 of the telescopic rod 2 are made of plastic. In this way, a manual overhead conductor telescopic expansion device can operate with power on. Of course, it should be noted that the hollow main rod 2.1 and the hollow sliding rod 2.2 of the telescopic rod 2 can also be made of metal materials. In this way, a manual overhead conductor telescopic expansion device needs to operate in the state of power outage of the overhead conductor.

[0053] Further, such as Figure 1 , Figure 2 As shown, the telescopic driving mechanism 4 includes a screw rod 4.1 parallel to the telescopic rod 2, a driving nut 4.3, a driving rod 4.5 rotatably arranged on the gripping rod 1, and a driving handle 4.6. The screw rod 4.1 is rotatably arranged on the hollow main rod 2.1. In this embodiment, the screw rod 4.1 is located above the hollow main rod 2.1. The screw rod 4.1 includes two threaded sections 4.2 with opposite spiral directions. There are two driving nuts 4.3, and the driving nuts 4.3 are arranged on the threaded sections 4.2 in a one-to-one correspondence. The driving nuts 4.3 are connected to the corresponding hollow sliding rod 2.2 through a connecting element. The upper end of the driving rod 4.5 is connected to the screw rod 4.1 through an upper bevel gear mechanism 4.4, and the lower end of the driving rod 4.5 is close to the lower end of the gripping rod 1. The driving handle 4.6 is rotatably arranged at the lower part of the gripping rod 1. The driving handle 4.6 is connected to the lower end of the driving rod 4.5 through a lower bevel gear mechanism 4.7. Thus, the operator can rotate the driving handle 4.6 to drive the rod 4.5 to drive the screw rod 4.1 to rotate, so as to drive the two driving nuts 4.3 to separate from or approach each other along the screw rod 4.1, thereby driving the hollow sliding rod 2.2 to extend or retract.

[0054] In this embodiment, the gripping rod 1 is a hollow rod, and the driving rod 4.5 is located in the inner hole of the gripping rod 1. The driving rod is parallel to the gripping rod, so that the compactness of the structure can be improved.

[0055] The screw rod 4.1 is provided with a connecting seat 4.8 at both ends. The connecting seat 4.8 is fixed on the hollow main rod 2.1. The screw rod 4.1 is rotatably connected to the connecting seat 4.8 through a bearing. The connecting seat 4.8 is provided with a transverse guide hole. The connecting element includes a connecting slide rod 4.9 parallel to the screw rod 4.1. The connecting slide rod 4.9 is slidably arranged in the transverse guide hole. One end of the connecting slide rod 4.9 is connected to the driving nut 4.3 through a connecting piece, and one end of the connecting slide rod 4.9 is connected to the corresponding hollow slide rod 2.2 through a connecting piece.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent transformation made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A manual overhead conductor telescopic expansion device, characterized in that: include: A gripping rod, the upper end of which is provided with a telescopic rod, the telescopic rod comprising a hollow main rod and hollow sliding rods slidably arranged at both ends of the hollow main rod; A telescopic driving mechanism drives the hollow sliding rod to extend and retract; The wire clamping grooves with openings facing downwards are arranged on the hollow sliding rods in a one-to-one correspondence; The vacant locking mechanism corresponds one-to-one with the hollow sliding rod, and includes a floating plate that can be raised and lowered and is arranged at the top of the wire clamping groove, and an eccentric wheel that is rotatably arranged on the hollow sliding rod. The floating plate is linked with the eccentric wheel, and the floating plate includes a high position and a low position. When the telescopic rod is in a retracted state and the floating plate is in a low position, the eccentric wheel abuts against the inner wall of the hollow main rod to limit the extension of the hollow sliding rod.

2. A manual overhead conductor telescopic expansion device according to claim 1, characterized in that: The vacant locking mechanism also includes: A linkage member arranged on the eccentric wheel; A vertical guide hole is arranged on the hollow sliding rod, in which a vertical guide rod is slidably arranged, and a floating plate is fixed to the lower end of the vertical guide rod; A linkage push rod located below the linkage member and fixed on the vertical guide rod; When the floating plate is in a high position, the linkage push rod abuts against the linkage member and drives the eccentric wheel to rotate upward, so that the eccentric wheel is separated from the inner wall of the hollow main rod.

3. A manual overhead conductor telescopic expansion device according to claim 1, characterized in that: It also includes a sealing mechanism corresponding to the wire clamping slots one by one, which includes: A top rod, fixed on the hollow main rod; A sealing sliding rod, slidably disposed on the corresponding hollow sliding rod, and a side stopper cooperating with the ejector rod is disposed on the sealing sliding rod; and A sealing elastic member driving a sealing sliding rod; When the hollow sliding rod is extended outward from the contracted state, the sealing sliding rod gradually extends into the notch of the wire clamping groove under the action of the sealing elastic member; When the telescopic rod is in a retracted state, the top rod abuts against the side stopper, the sealing sliding rod is staggered with the notch of the wire clamping slot, and the notch of the wire clamping slot is in an open state.

4. A manual overhead conductor telescopic expansion device according to claim 1, 2 or 3, characterized in that: The telescopic driving mechanism comprises: A screw rod parallel to the telescopic rod is rotatably arranged on the hollow main rod, and the screw rod comprises two threaded sections with opposite spiral directions; The drive nuts are arranged on the threaded segments in a one-to-one correspondence, and the drive nuts are connected to the corresponding hollow sliding rods through connecting elements; The driving rod arranged on the holding rod is rotated, the upper end of the driving rod is connected with the screw rod through the upper bevel gear mechanism, and the lower end of the driving rod is close to the lower end of the holding rod.

5. A manual overhead conductor telescopic expansion device according to claim 4, characterized in that: The telescopic driving mechanism also includes a driving handle rotatably arranged at the lower part of the holding rod, and the driving handle is connected to the lower end of the driving rod through a lower bevel gear mechanism.

6. A manual overhead conductor telescopic expansion device according to claim 4, characterized in that: The two ends of the screw are provided with connecting seats, which are fixed on the hollow main rod. The screw is rotatably connected to the connecting seats through bearings. The connecting seats are provided with transverse guide holes. The connecting element includes a connecting slide rod parallel to the screw rod, and the connecting slide rod is slidably arranged in the transverse guide hole.

7. A manual overhead conductor telescopic expansion device according to claim 4, characterized in that: The holding rod is a hollow rod, and the driving rod is located in the inner hole of the holding rod.

8. A manual overhead conductor telescopic expansion device according to claim 1, 2 or 3, characterized in that: A wire clamping piece is arranged at the lower part of the outer wall of the hollow sliding rod. The wire clamping piece is located at the outer side of the hollow main rod, and a wire clamping groove is arranged on the wire clamping piece.

9. A manual overhead conductor telescopic expansion device according to claim 1, 2 or 3, characterized in that: A limit block is arranged on the outer side surface of the hollow sliding rod, and the limit block is located on the outer side of the hollow main rod.

10. A manual overhead conductor telescopic expansion device according to claim 1, 2 or 3, characterized in that: The hollow main rod and the hollow sliding rod of the telescopic rod are made of plastic.

Images