Large-top-diameter electric pole hoisting clamp

Abstract

The utility model relates to the technical field of production of electric pole hoisting and carrying tools, and particularly discloses a large-top-diameter electric pole hoisting clamp which comprises a clamping assembly, the clamping assembly comprises a first cross rod, the two ends of the first cross rod are each rotationally connected with two first connecting rods, the bottom ends of the first connecting rods are rotationally connected with second connecting rods, and the second connecting rods are rotationally connected with the bottom ends of the second connecting rods. A third cross rod is in transmission connection between the middle positions of the four second connecting rods, and each second connecting rod comprises an arc arm end located at the bottom end. According to the utility model, through the arrangement of the limiting assembly, the lifting of the lifting seat is released, when the limiting rod is inserted into the limiting sleeve, then the lifting seat is lifted to drive the cross rod I to move upwards, and the bottom end of the limiting rod is clamped with the limiting sleeve when moving upwards in the limiting sleeve, so that the cross rod I drives the cross rod III to move upwards synchronously; therefore, the device is lifted away from the electric pole in the posture that the bottom end is opened, the opening and closing states of the arc arm ends are conveniently controlled by controlling the first transverse rod to ascend and descend relative to the third transverse rod, and the number of needed workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of production of electric pole hoisting and handling tools, in particular to a large-diameter electric pole hoisting clamp. Background Art

[0002] In the production process of electric poles, it is often necessary to lift and transfer the electric poles. One of the existing lifting clamps is the X-shaped clamp. The advantage of the X-shaped clamp is that when the X-shaped clamp is lifted, the electric pole can be clamped and embraced spontaneously, and there is no need to manually adjust the clamp's grip on the electric pole. However, when the X-shaped clamp is in use, when the rope is pulled upward to pull the X-shaped clamp, the bottom end of the X-shaped clamp will be engaged, causing the X-shaped clamp to be in a closed state in a no-load state, so that during the lifting process, the clamp needs to be manually opened and the electric pole is engaged. Secondly, after the lifting is completed, the clamp also needs to be manually opened to detach the auxiliary clamp from the electric pole. In other words, in addition to the personnel who operate the lifting machinery, additional personnel are required to open and close the clamp, which is more troublesome. Utility Model Content

[0003] The utility model aims to provide a large-diameter electric pole hoisting fixture to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A large-diameter electric pole lifting clamp comprises a clamping assembly, the clamping assembly comprises a cross bar 1, both ends of the cross bar 1 are rotatably connected to two connecting rods 1, the bottom end of the connecting rod 1 is rotatably connected to connecting rod 2, and the middle positions of the four connecting rods 2 are transmission-connected with a cross bar 3, the connecting rod 2 comprises an arc arm end located at the bottom end, both ends of the cross bar 1 are provided with a limit assembly, the limit assembly comprises a fixed sleeve, the inner wall of the fixed sleeve is rotatably connected to the limit sleeve, a limit rod is arranged above the fixed sleeve, the limit rod is rotatably connected to the end of the cross bar 1, a hanging seat is fixedly connected to the middle position of the outer wall of the cross bar 1, and the fixed sleeve is rotatably connected to the adjacent end of the cross bar 3.

[0006] Further, the outer wall of the bottom end of the limiting rod is fixedly connected with a limiting protrusion, a plurality of bevel gear blocks 2 are fixedly connected with an annular shape at equal distances to the top end of the inner wall of the limiting sleeve, a bevel gear block 1 is fixedly connected with an annular shape at equal distances to the bottom end of the inner wall of the limiting sleeve, and the number of bevel gear blocks 1 and bevel gear blocks 2 are the same, the plurality of bevel gear blocks 1 are staggered with the plurality of bevel gear blocks 2, a guide groove 1 is provided at the top end of the bevel gear block 1, a guide groove 2 is provided at the bottom end of the bevel gear block 2, and both ends of the limiting protrusion are wedge-shaped.

[0007] Furthermore, a second inter-groove is formed between two adjacent helical tooth blocks 2 among the plurality of helical tooth blocks 2, a first inter-groove is formed between two adjacent helical tooth blocks 1 among the plurality of helical tooth blocks 1, and a width of the limiting protrusion is the same as a width of the second inter-groove and the first inter-groove.

[0008] Furthermore, the top end of the second bevel gear block is wedge-shaped, and the top end of the second bevel gear block is matched with the bottom end of the limiting protrusion at an inclination angle.

[0009] Furthermore, the outer wall of the fixed sleeve is fixedly connected with a sliding groove rod, the outer wall of the bottom end of the sliding groove rod is fixedly connected with a rotating seat one, the rotating seat one and the cross bar three are rotatably connected, the outer wall of the connecting rod two is rotatably connected with a positioning rod at a position between the other end and the cross bar three, and a round rod is rotatably connected between one ends of the two positioning rods located at the same end of the cross bar three, one end of the round rod is fixedly connected with an insertion rod, and the insertion rod is slidably connected with the sliding groove rod.

[0010] Furthermore, a sliding sleeve is fixedly connected to the top end of the limiting rod, the sliding sleeve is slidably sleeved with the adjacent insertion rod, a rotating seat 2 is fixedly connected to a side wall of the sliding sleeve, and the rotating seat 2 is rotatably connected to the adjacent end of the cross bar 1.

[0011] Furthermore, bearings are fixedly installed between the two ends of the outer side wall of the limiting sleeve and the inner side wall of the fixing sleeve.

[0012] Furthermore, a guard plate is fixedly connected between two arc arm ends on the same side below the cross bar three, and a cross bar two is rotatably connected between one end of two cross bars two on the same side.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the setting of the limit assembly, when multiple arc arm ends clamp the pole and are hoisted in place, the lifting of the suspension seat is relaxed, and the cross bar 1 and the connecting rod 1 drive the connecting rod 2 to rotate under the action of gravity, so that the two arc arm ends at the same end deflect away from each other, and at the same time, the downward movement of the cross bar 1 drives the limit rod to move downward. When the limit rod is inserted into the limit sleeve, the suspension seat is then hoisted to drive the cross bar 1 to move upward. When the bottom end of the limit rod moves upward in the limit sleeve, it is engaged with the limit sleeve, so that the cross bar Rod one drives cross bar three to move upward synchronously, thereby lifting the device from the pole with its bottom open. When the device is placed on the next pole, after the arc arm end contacts the pole, cross bar one continues to be lowered, and then cross bar one is lifted, so that the limit rod and the limit sleeve are disengaged. When cross bar one is lifted, multiple arc arm ends hold the pole, so that the opening and closing states of multiple arc arm ends can be controlled by controlling the lifting and lowering of cross bar one relative to cross bar three, thereby reducing the number of workers required. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall clamping state structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the overall top view structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the limit assembly in the utility model;

[0019] Figure 5 It is a schematic diagram of the flattened structure inside the limit sleeve of the utility model.

[0020] In the figure: 100, clamping assembly; 110, cross bar 1; 111, hanging seat; 120, connecting rod 1; 130, connecting rod 2; 131, arc arm end; 140, guard plate; 150, positioning rod; 160, cross bar 2; 170, cross bar 3; 200, limiting assembly; 210, limiting rod; 211, limiting convex block; 220, fixed sleeve; 221, slide groove rod; 222, rotating seat 1; 230, sliding sleeve; 231, rotating seat 2; 240, insert rod; 250, round rod; 260, limiting sleeve; 261, oblique tooth block 1; 262, guide groove 1; 263, intermediate groove 1; 264, oblique tooth block 2; 265, guide groove 2; 266, intermediate groove 2; 270, bearing. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 5In an embodiment of the utility model, a large-diameter electric pole hoisting clamp includes a clamping assembly 100, the clamping assembly 100 includes a cross bar 110, both ends of the cross bar 110 are rotatably connected to two connecting rods 120, the bottom end of the connecting rod 120 is rotatably connected to a connecting rod 2 130, and a cross bar 3 170 is transmission-connected between the middle positions of the four connecting rods 2 130, the connecting rod 2 130 includes an arc arm end 131 located at the bottom end, and both ends of the cross bar 110 are provided with a limit assembly 200, the limit assembly 200 includes a fixed sleeve 220, the inner wall of the fixed sleeve 220 is rotatably connected to the limit sleeve 260, and a limit rod 210 is arranged above the fixed sleeve 220, the limit rod 210 is rotatably connected to the end of the cross bar 110, the middle position of the outer wall of the cross bar 110 is fixedly connected to a hanging seat 111, and the fixed sleeve 220 is rotatably connected to the adjacent end of the cross bar 3 170.

[0023] Specifically, when the multiple arc arm ends 131 clamp the electric pole and hoist it into place, the lifting of the hanging seat 111 is released, and the cross bar 110 and the connecting rod 120 drive the connecting rod 2 130 to rotate under the action of gravity, so that the two arc arm ends 131 at the same end deflect away from each other, and at the same time, the downward movement of the cross bar 110 drives the limit rod 210 to move downward. When the limit rod 210 is inserted into the limit sleeve 260, the hanging seat 111 is then hoisted to drive the cross bar 110 to move upward. When the bottom end of the limit rod 210 moves upward in the limit sleeve 260, it is in contact with the limit sleeve 260. 60 is engaged, so that the cross bar 110 drives the cross bar 3 170 to move up synchronously, thereby lifting the device from the pole with the bottom open. When the device is placed on the next pole, after the arc arm end 131 contacts the pole, the cross bar 110 continues to be lowered, and then the cross bar 110 is lifted, so that the limit rod 210 and the limit sleeve 260 are disengaged, so that when the cross bar 110 is lifted, multiple arc arm ends 131 hold the pole, so that it is convenient for the hoisting personnel to directly control the opening and closing of multiple arc arm ends 131, reducing the number of workers required.

[0024] Embodiment 1

[0025] like Figure 5As shown, in this embodiment, the outer wall of the bottom end of the limiting rod 210 is fixedly connected to the limiting protrusion 211, and the top of the inner wall of the limiting sleeve 260 is annularly equidistantly fixedly connected with a plurality of beveled tooth blocks 264, and the bottom of the inner wall of the limiting sleeve 260 is annularly equidistantly fixedly connected with a beveled tooth block 1 261, and the number of beveled tooth blocks 1 261 and beveled tooth blocks 2 264 is the same, and the plurality of beveled tooth blocks 1 261 and the plurality of beveled tooth blocks 2 264 are staggered, and the top of the beveled tooth block 1 261 is provided with a guide groove 1 262, and the beveled tooth block 2 264 is fixedly connected with a plurality of beveled tooth blocks 264. A second guide groove 265 is provided at the bottom end, both ends of the limiting protrusion 211 are wedge-shaped, a second inter-groove 266 is formed between two adjacent second bevel gear blocks 264 among the plurality of second bevel gear blocks 264, and a first inter-groove 263 is formed between two adjacent bevel gear blocks 1 261 among the plurality of first bevel gear blocks 261, the width of the limiting protrusion 211 is the same as the width of the second inter-groove 266 and the first inter-groove 263, the top end of the second bevel gear block 264 is wedge-shaped, and the top end of the second bevel gear block 264 matches the inclination angle of the bottom end of the limiting protrusion 211.

[0026] In this embodiment, when the limit rod 210 moves down into the limit sleeve 260, the limit protrusion 211 passes through an intermediate groove 266, and the limit protrusion 211 falls on the guide groove 1 262 on the lower side, and the limit protrusion 211 squeezes the guide groove 1 262 to drive the limit sleeve 260 to rotate. When the limit rod 210 is driven to move up for the first time, the slide rod 221 is engaged with the guide groove 265 on the upper side, and squeezes the limit sleeve 260 to rotate, so that the limit rod 210 is engaged with the limit sleeve 260, thereby facilitating the arc arm end 131 to remain in the open state. When the limit rod 210 is controlled to move downward, the limit protrusion 211 squeezes the oblique tooth block 261 below, causing the limit sleeve 260 to rotate, thereby causing the limit protrusion 211 to slide into the intermediate groove 263. When the limit rod 210 moves upward for the second time, the limit protrusion 211 squeezes the oblique tooth block 264 above, thereby causing the limit protrusion 211 to slide out of the limit sleeve 260 from the intermediate groove 266, thereby achieving the disengagement of the limit protrusion 211 from the limit sleeve 260, thereby facilitating the control of the opening and closing states of multiple arc arm ends 131 by controlling the lifting and lowering of the cross bar 110 relative to the cross bar 3 170.

[0027] like Figure 4As shown, in this embodiment, the outer wall of the fixed sleeve 220 is fixedly connected with a sliding groove rod 221, and the outer wall of the bottom end of the sliding groove rod 221 is fixedly connected with a rotating seat 1 222, and the rotating seat 1 222 is rotatably sleeved with the cross bar 3 170. The outer wall of the connecting rod 2 130 is rotatably connected with the positioning rod 150 at a position between the other end and the cross bar 3 170, and a round rod 250 is rotatably connected between one ends of the two positioning rods 150 located at the same end of the cross bar 3 170, and one end of the round rod 250 is fixedly connected with an insertion rod 240, and the insertion rod 240 is slidably sleeved with the sliding groove rod 221, and the top end of the limiting rod 210 is fixedly connected with a sliding sleeve 230, and the sliding sleeve 230 is slidably sleeved with the adjacent insertion rod 240, and a side wall of the sliding sleeve 230 is fixedly connected with a rotating seat 231, and the rotating seat 231 is rotatably connected with the adjacent end of the cross bar 1 110.

[0028] During specific implementation, by setting the positioning rod 150, the fixed sleeve 220 is kept in a vertical state, so as to prevent the lifting and lowering of the cross bar 110 from affecting the deflection angle of the fixed sleeve 220. At the same time, by setting the sliding sleeve 230, the limit rod 210 is convenient to always keep a vertical state, so that the limit rod 210 can be inserted into the limit sleeve 260 when the cross bar 110 moves downward.

[0029] Embodiment 2

[0030] like Figure 1 As shown, in this embodiment, bearings 270 are fixedly installed between both ends of the outer side wall of the limiting sleeve 260 and the inner side wall of the fixing sleeve 220 .

[0031] A guard plate 140 is fixedly connected between the two arc arm ends 131 on the same side below the cross bar 3 170 , and a cross bar 2 160 is rotatably connected between one ends of the two cross bars 160 on the same side.

[0032] In specific implementation, the protective plate 140 increases the contact area between the arc arm end 131 and the pole, reduces the pressure between the arc arm end 131 and the pole, and facilitates the protection of the arc arm end 131 and the pole during lifting.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A large-diameter electric pole hoisting fixture, comprising a clamping assembly, characterized in that: The clamping assembly includes a cross bar 1, both ends of the cross bar 1 are rotatably connected to two connecting rods 1, the bottom end of the connecting rod 1 is rotatably connected to a connecting rod 2, and a cross bar 3 is transmission-connected between the middle positions of the four connecting rods 2, the connecting rod 2 includes an arc arm end located at the bottom end, and both ends of the cross bar 1 are provided with a limiting assembly, the limiting assembly includes a fixed sleeve, the inner wall of the fixed sleeve is rotatably connected to the limiting sleeve, a limiting rod is arranged above the fixed sleeve, the limiting rod is rotatably connected to the end of the cross bar 1, a hanging seat is fixedly connected to the middle position of the outer wall of the cross bar 1, and the fixed sleeve is rotatably connected to the adjacent end of the cross bar 3.

2. A large-diameter pole hoisting fixture according to claim 1, characterized in that: The outer wall of the bottom end of the limiting rod is fixedly connected to a limiting protrusion, and a plurality of bevel gear blocks 2 are fixedly connected to the top end of the inner wall of the limiting sleeve in an annular manner and at equal distances, and a bevel gear block 1 is fixedly connected to the bottom end of the inner wall of the limiting sleeve in an annular manner and at equal distances, and the number of bevel gear blocks 1 and bevel gear blocks 2 are the same, and the plurality of bevel gear blocks 1 are staggered with the plurality of bevel gear blocks 2, a guide groove 1 is provided at the top end of the bevel gear block 1, and a guide groove 2 is provided at the bottom end of the bevel gear block 2, and both ends of the limiting protrusion are wedge-shaped.

3. A large-diameter pole hoisting fixture according to claim 2, characterized in that: A second inter-groove is formed between two adjacent helical tooth blocks 2 among the plurality of helical tooth blocks 2, and a first inter-groove is formed between two adjacent helical tooth blocks 1 among the plurality of helical tooth blocks 1. The width of the limiting protrusion is the same as that of the second inter-groove and the first inter-groove.

4. A large-diameter pole hoisting fixture according to claim 3, characterized in that: The top end of the second bevel gear block is wedge-shaped, and the top end of the second bevel gear block matches the bottom end of the limiting protrusion at an inclination angle.

5. The large-diameter pole hoisting fixture according to claim 1 is characterized in that: The outer wall of the fixed sleeve is fixedly connected with a sliding groove rod, and the outer wall of the bottom end of the sliding groove rod is fixedly connected with a rotating seat one, and the rotating seat one is rotatably sleeved with the cross bar three. The outer wall of the connecting rod two is rotatably connected with a positioning rod at a position between the other end and the cross bar three, and a round rod is rotatably connected between one ends of the two positioning rods located at the same end of the cross bar three, and one end of the round rod is fixedly connected with an insertion rod, and the insertion rod is slidably sleeved with the sliding groove rod.

6. A large-diameter pole hoisting fixture according to claim 5, characterized in that: The top end of the limit rod is fixedly connected with a sliding sleeve, and the sliding sleeve is slidably sleeved with the adjacent insertion rod. A side wall of the sliding sleeve is fixedly connected with a rotating seat 2, and the rotating seat 2 is rotatably connected with the adjacent end of the cross bar 1.

7. The large-diameter pole hoisting fixture according to claim 1 is characterized in that: Bearings are fixedly installed between the two ends of the outer side wall of the limiting sleeve and the inner side wall of the fixing sleeve.

8. The large-diameter pole hoisting fixture according to claim 1, characterized in that: A guard plate is fixedly connected between the two arc arm ends on the same side below the cross bar three, and a cross bar two is rotatably connected between one end of the two cross bars two on the same side.

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