Hoisting equipment and hoisting method

Abstract

The invention discloses hoisting equipment and a hoisting method. The hoisting equipment comprises a fixing rod, a transverse rod, a supporting rod and a hook, and the fixing rod is longitudinally arranged; the transverse rod is transversely arranged and rotationally connected to the fixing rod. The supporting rod is provided with a first end and a second end which are opposite, the first end is rotationally connected with the fixing rod, the second end is connected with the cross rod, and the hook is connected to the end, away from the fixing rod, of the cross rod and used for hooking materials; the triangular structure is a right triangle, the transverse rod is one straight side, the fixing rod is the other straight side, the supporting rod is a bevel edge, the included angle between the fixing rod and the supporting rod is alpha, the included angle between the transverse rod and the supporting rod is beta, and alpha is smaller than beta. Compared with the prior art, the transverse rod and the supporting rod are arranged, the transverse rod is rotationally connected with the fixing rod so that the transverse rod can drive materials to move to the designated position, meanwhile, the included angle between the fixing rod and the supporting rod is alpha, the included angle between the transverse rod and the supporting rod is beta, and the included angle beta is set to be larger than the included angle alpha, so that the torque of the transverse rod is effectively reduced; and the stress stability of the transverse rod is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of pole tower hoisting, and in particular to a hoisting device and a hoisting method. Background Art

[0002] Pole tower hoisting equipment is a special equipment used to lift and install pole towers (including electric poles, iron towers, etc.). Pole towers are important supporting structures for overhead transmission lines, communication lines, etc. They are installed at a high position and have a large mass, so special hoisting equipment is required to complete the installation work.

[0003] The existing lifting equipment has a limited range of movement. Due to the limited construction site environment, there are usually various obstacles on the construction site, such as other equipment under construction, temporarily stacked materials, buildings or natural obstacles (such as trees, etc.). Sometimes the lifting equipment cannot be transported to a suitable lifting location, resulting in the tower being unable to be accurately placed on the designed foundation position during the lifting process, increasing the difficulty of construction operations. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a hoisting device and a hoisting method, which can increase the moving range and facilitate the hoisting device to transport materials to a designated construction location.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A lifting device comprises a fixed rod, a cross rod, a support rod and a hook, wherein the fixed rod is arranged longitudinally; the cross rod is arranged transversely and is rotatably connected to the fixed rod; the support rod has a first end and a second end opposite to each other, the first end is rotatably connected to the fixed rod, and the second end is connected to the cross rod, and the fixed rod, the cross rod and the support rod form a triangular structure; the hook is connected to one end of the cross rod away from the fixed rod, and the hook is used to hook materials; the triangular structure is a right triangle, the cross rod is one of the straight sides, the fixed rod is another straight side, the support rod is a hypotenuse, the angle between the fixed rod and the support rod is α, and the angle between the cross rod and the support rod is β, α<β.

[0007] As one embodiment, the lifting equipment includes a first rotating member and a second rotating member arranged at an interval, and the first rotating member and the second rotating member each include an inner sleeve and an outer sleeve, the inner sleeve is sleeved on the fixed rod, the outer sleeve is sleeved on the outer periphery of the inner sleeve and is rotatably connected to the inner sleeve, the cross bar is connected to the outer sleeve of the first rotating member, and the support rod is connected to the outer sleeve of the second rotating member.

[0008] As one implementation manner, the inner sleeve is fixedly connected to the fixing rod; or, the inner sleeve is detachably connected to the fixing rod; or, the inner sleeve is threadedly connected to the fixing rod.

[0009] As one embodiment, the inner sleeve partially extends out of the outer sleeve to form a holding portion, and the holding portion is fixedly connected to the fixing rod or detachably connected or threadedly connected.

[0010] As one of the embodiments, the outer side surface of the outer sleeve of the first rotating member is provided with a first abutting portion and a first rotating portion, the first abutting portion is fixedly connected to the outer sleeve along the radial direction of the outer sleeve, the first rotating portion is connected to the first abutting portion along the axial direction of the outer sleeve and extends in a direction away from the first abutting portion, the cross bar is provided with a first rotating groove, the cross bar is sleeved on the outer periphery of the first rotating portion through the first rotating groove, and abuts against the first abutting portion along the axial direction of the outer sleeve;

[0011] The outer side surface of the outer sleeve of the second rotating member is provided with a second abutment portion and a second rotating portion, the second abutment portion is fixedly connected to the outer sleeve along the radial direction of the outer sleeve, the second rotating portion is connected to the second abutment portion along the axial direction of the outer sleeve and extends in a direction away from the second abutment portion, the support rod is provided with a second rotating groove, the support rod is sleeved on the outer periphery of the second rotating portion through the second rotating groove, and abuts against the second abutment portion along the axial direction of the outer sleeve.

[0012] As one embodiment, the lifting device includes a fixing seat, the bottom of the fixing rod is connected to the fixing seat, and the fixing seat is used to be connected to an external structural member.

[0013] As one of the embodiments, the lifting equipment includes a force-bearing member and a fixing bolt. The force-bearing member is provided with a plurality of adjustment grooves along its length direction. The adjustment grooves extend along the length direction. The fixing seat is slidably connected to the force-bearing member and is locked to the force-bearing member by the fixing bolts. The fixing seat is provided with a fixing hole. The fixing bolt passes through the fixing hole and is fixed to the adjustment groove.

[0014] As one embodiment, the lifting equipment includes a connecting piece, the connecting piece is provided with a third rotating groove, the third rotating groove is rotatably matched with the second rotating part, and the connecting piece is abutted with the second abutting part, the connecting piece is provided with a first connecting part on the peripheral side of the third rotating groove, and the first connecting part is connected to the support rod.

[0015] As one embodiment, a second connecting portion is provided on one side of the cross bar close to the support bar, and the support bar is connected to the second connecting portion; the distance between the second connecting portion and the hook is set to L1, and the distance between the hook and the free end of the cross bar is set to L2, and L1<L2.

[0016] Another object of the present invention is to provide a lifting method, using the lifting equipment in any of the above embodiments, the lifting method comprising: placing the material on the hook and then rotating the cross bar to move it to a preset position; or rotating the cross bar to move it to a preset position and then placing the material on the hook.

[0017] The beneficial effects of the present invention are: the present application provides a lifting equipment and a lifting method, including a fixed rod, a cross rod, a support rod and a hook, the fixed rod is arranged longitudinally; the cross rod is arranged transversely and is rotatably connected to the fixed rod; the support rod has a first end and a second end opposite to each other, the first end is rotatably connected to the fixed rod, and the second end is connected to the cross rod, and the fixed rod, the cross rod and the support rod form a triangular structure; the hook is connected to one end of the cross rod away from the fixed rod, and the hook is used to hook materials; the triangular structure is a right triangle, the cross rod is one of the straight sides, the fixed rod is another straight side, the support rod is a hypotenuse, the angle between the fixed rod and the support rod is α, and the angle between the cross rod and the support rod is β, α<β. Compared with the prior art, the present application provides a cross bar and a support bar. The cross bar is rotatably connected to the fixed bar so that the cross bar can drive the material to move to the specified position. The support bar enhances the bearing capacity of the cross bar to prevent the cross bar from being broken or bent by the material. At the same time, the angle between the fixed bar and the support bar is α, and the angle between the cross bar and the support bar is β. The angle β is set to be greater than the angle α, which effectively reduces the bending moment on the cross bar and enhances the force stability of the cross bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of a hoisting device of the present invention is shown;

[0019] Figure 2 A schematic structural diagram of a first rotating member or a second rotating member of the present invention is shown;

[0020] Figure 3 A structural schematic diagram of a fixing seat of the present invention is shown;

[0021] Figure 4 A schematic structural diagram of a crossbar of the present invention is shown;

[0022] Figure 5 A schematic structural diagram of a connecting piece of the present invention is shown;

[0023] Reference numerals: 1, fixing rod; 2, cross rod; 3, supporting rod; 4, hook; 5, first rotating member; 6, second rotating member; 7, fixing seat; 8, fixing bolt; 9, force bearing member; 10, connecting member;

[0024] 21. first rotating groove; 51. outer sleeve; 52. inner sleeve; 53. first abutting portion; 54. first rotating portion; 521. holding portion; 71. fixing hole; 91. adjusting groove; 101. third rotating groove; 102. first connecting portion. DETAILED DESCRIPTION

[0025] In the present invention, the terms "disposed", "provided with", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "radial", "circumferential", etc. are based on the orientation or position relationship shown in the drawings and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] See also Figure 1 The embodiment of the present application provides a lifting device, including a fixed rod 1, a cross rod 2, a support rod 3 and a hook 4, the fixed rod 1 is arranged longitudinally; the cross rod 2 is arranged transversely and rotatably connected to the fixed rod 1; the support rod 3 has a first end and a second end opposite to each other, the first end is rotatably connected to the fixed rod 1, and the second end is connected to the cross rod 2, the fixed rod 1, the cross rod 2 and the support rod 3 form a triangular structure; the hook 4 is connected to the end of the cross rod 2 away from the fixed rod 1, and the hook 4 is used to hook materials; the triangular structure is a right triangle, the cross rod 2 is one of the straight sides, the fixed rod 1 is the other straight side, the support rod 3 is the hypotenuse, the angle between the fixed rod 1 and the support rod 3 is α, the angle between the cross rod 2 and the support rod 3 is β, α<β.

[0031] In actual application, the fixed rod 1 can be fixed on an external force-bearing member, the fixed rod 1 extends to a certain length in the longitudinal direction, the cross bar 2 is rotatably connected to the fixed rod 1, and the end of the cross bar 2 away from the fixed rod 1 is connected with a hook 4, and the hook 4 is used to hook materials (pole towers and other equipment). When there are obstacles at the construction site and the lifting equipment cannot be transported to the designated position, the cross bar 2 can be rotated to make the hook 4 drive the material to move to the desired position. In addition, in order to improve the carrying capacity of the cross bar 2, the present application also provides a support rod 3, the first end of the support rod 3 is rotatably connected to the fixed rod 1, and the second end can be fixedly connected to the cross bar 2. When the cross bar 2 rotates, the support rod 3 can rotate with the cross bar 2, so that the support rod 3 can always support the cross bar 2.

[0032] Specifically, the support rod 3 can be arranged above the crossbar 2, so that the support rod 3 exerts an upward pulling force on the crossbar 2, and the pulling force is opposite to the gravity of the material. In this way, the upper and lower sides of the crossbar 2 are subjected to a more uniform force, which prevents the crossbar 2 from being bent by the gravity of the material, causing damage to the equipment. Alternatively, the support rod 3 can also be arranged below the crossbar 2, in which case the support rod 3 exerts an upward supporting force on the crossbar 2, which is opposite to the gravity of the material, and the supporting force and gravity are offset, thereby improving the bearing capacity of the crossbar 2; or the support rods 3 are arranged on both the upper and lower sides to further improve the bearing capacity of the crossbar 2.

[0033] Furthermore, the cross bar 2 extends in the transverse direction, the fixed bar 1 extends in the longitudinal direction, a right angle is formed between the cross bar 2 and the fixed bar 1, and the support bar 3 is connected to the cross bar 2 and the fixed bar 1 respectively, so that the support bar 3, the cross bar 2 and the fixed bar 1 form a right triangle.

[0034] At the same time, the angle between the fixed rod 1 and the support rod 3 is α, and the angle between the cross bar 2 and the support rod 3 is β, α<β. For a right triangle, let the two right-angled sides be a and b (here a is the cross bar 2, b is the fixed rod 1), and the hypotenuse (support rod 3) be c. When a vertical force (material weight) acts on the horizontal right-angled side (cross bar 2), according to the force decomposition and lever principle, this force will generate a moment of force around the intersection of the hypotenuse c (support rod 3) and the vertical right-angled side b (fixed rod 1) on the right triangle. According to the relationship of trigonometric functions, the ratio of the horizontal side to the vertical side is a / b=tanα (the angle between the hypotenuse and the vertical side), the component force along the hypotenuse direction is F1=F / cosα, and the component force perpendicular to the hypotenuse direction (that is, along the vertical side direction) is F2=Ftanα. This force component F2 perpendicular to the hypotenuse will generate a bending moment M = F2 × b = F × a on the horizontal side (crossbar 2). In order to make the horizontal side (crossbar 2) more stable under the vertical force, this bending moment needs to be reduced. As can be seen from the above formula, when the value of a / b is small, under the given vertical force F, the bending moment will be relatively small, and the force on crossbar 2 will be small. Therefore, setting the angle β to be greater than the angle α can effectively increase the stability of the force on crossbar 2.

[0035] It should be noted that the vertical force F is the gravity of the material.

[0036] Compared with the prior art, the present application provides a cross bar 2 and a support bar 3. The cross bar 2 is rotatably connected to the fixed bar 1 so that the cross bar 2 can drive the material to move to the specified position. The support bar 3 enhances the bearing capacity of the cross bar 2 to prevent the cross bar 2 from being broken or bent by the material. At the same time, the angle between the fixed bar 1 and the support bar 3 is α, and the angle between the cross bar 2 and the support bar 3 is β. The angle β is set to be greater than the angle α, which effectively reduces the bending moment on the cross bar 2 and enhances the force stability of the cross bar 2.

[0037] See again Figure 1 The lifting equipment includes a first rotating member 5 and a second rotating member 6 which are arranged at intervals. The first rotating member 5 and the second rotating member 6 both include an inner sleeve 52 and an outer sleeve 51. The inner sleeve 52 is sleeved on the fixed rod 1. The outer sleeve 51 is sleeved on the outer periphery of the inner sleeve 52 and is rotatably connected to the inner sleeve 52. The cross bar 2 is connected to the outer sleeve 51 of the first rotating member 5, and the support rod 3 is connected to the outer sleeve 51 of the second rotating member 6.

[0038] In actual application, the first rotating member 5 and the second rotating member 6 are respectively arranged at intervals along the length direction of the fixed rod 1. The first rotating member 5 can be arranged above the second rotating member 6. The first rotating member 5 is mainly used to connect the cross bar 2, and the second rotating member 6 is mainly used to connect the support rod 3. The first rotating member 5 and the second rotating member 6 have the same structure, both including an inner sleeve 52 and an outer sleeve 51. The inner sleeve 52 is used to be fixedly connected to the fixed rod 1, and the outer sleeve 51 is rotatably connected to the inner sleeve 52. The cross bar 2 and the support rod 3 are both connected to the outer peripheral side of the outer sleeve 51. With this arrangement, the outer sleeve 51 can rotate at a larger angle relative to the inner sleeve 52. During the rotation process, the cross bar 2 and the support rod 3 will not interfere with the fixed rod 1. The rotation angle of the outer sleeve 51 exceeds 180 degrees, and can even be close to 360 degrees, so that the cross bar 2 can drive the hoisted material to rotate at a larger angle, so that the cross bar 2 can move the material over a larger range, which is beneficial to transporting materials.

[0039] In one embodiment, the inner sleeve 52 can be fixedly connected to the fixing rod 1, for example, the inner sleeve 52 and the fixing rod 1 are welded together, which enhances the connection stability between the inner sleeve 52 and the fixing rod 1 and prevents the inner sleeve 52 from moving during lifting.

[0040] In one embodiment, the inner sleeve 52 may be detachably connected to the fixing rod 1 , for example, the inner sleeve 52 and the fixing rod 1 are fixed together by bolts, which facilitates the removal and installation of the inner sleeve 52 .

[0041] In one embodiment, the inner sleeve 52 can be threadedly connected to the fixed rod 1. On the one hand, the threaded connection has a self-locking function, which can lock the inner sleeve 52 at a specified height. On the other hand, the threaded connection has the function of adjusting the position of the inner sleeve 52. In actual applications, in order to adapt to different work locations or material volumes, the height of the hook 4 from the work surface or the ground needs to be adjusted at any time. The threaded connection between the inner sleeve 52 and the fixed rod 1 is helpful to adjust the height of the cross bar 2 and the ground or the work surface, so that the hook 4 can more accurately transport materials to the specified position.

[0042] See also Figure 2 The inner sleeve 52 partially extends out of the outer sleeve 51 to form a holding portion 521, and the holding portion 521 is fixedly connected to the fixing rod 1 or detachably connected or threadedly connected.

[0043] In actual application, the holding portion 521 is mainly the portion where the inner sleeve 52 extends out of the outer sleeve 51. When the inner sleeve 52 is fixedly connected to the fixed rod 1, the holding portion 521 can increase the fixing area of ​​the inner sleeve 52 and the fixed rod 1, thereby improving the connection stability between the inner sleeve 52 and the fixed rod 1; when the inner sleeve 52 and the fixed rod 1 are detachably connected, the holding portion 521 can be used as a portion connected or fixed to the fixed rod 1; when the inner sleeve 52 and the fixed rod 1 are threadedly connected, the holding portion 521 provides a portion for the operator to apply force, which is convenient for the operator to rotate the inner sleeve 52 so that the inner sleeve 52 can move relative to the fixed rod 1, thereby adjusting the position of the cross bar 2.

[0044] See again Figure 2 The outer side surface of the outer sleeve 51 of the first rotating member 5 is provided with a first abutting portion 53 and a first rotating portion 54, the first abutting portion 53 is fixedly connected to the outer sleeve 51 along the radial direction of the outer sleeve 51, the first rotating portion 54 is connected to the first abutting portion 53 along the axial direction of the outer sleeve 51, and extends in a direction away from the first abutting portion 53, the cross bar 2 is provided with a first rotating groove 21, the cross bar 2 is sleeved on the outer periphery of the first rotating portion 54 through the first rotating groove 21, and abuts with the first abutting portion 53 along the axial direction of the outer sleeve 51; the outer side surface of the outer sleeve 51 of the second rotating member 6 is provided with a second abutting portion and a second rotating portion, the second abutting portion is fixedly connected to the outer sleeve 51 along the radial direction of the outer sleeve 51, the second rotating portion is connected to the second abutting portion along the axial direction of the outer sleeve 51, and extends in a direction away from the second abutting portion, the support rod 3 is provided with a second rotating groove, the support rod 3 is sleeved on the outer periphery of the second rotating portion through the second rotating groove, and abuts with the second abutting portion along the axial direction of the outer sleeve 51.

[0045] In actual applications, the structures of the first rotating member 5 and the second rotating member 6 can be set to the same structure, both of which adopt the following structure: the outer peripheral surface of the outer sleeve 51 is connected with the first abutment portion 53 (second abutment portion) and the first rotating portion 54 (second rotating portion) in the radial direction, and the cross bar 2 is sleeved on the first rotating portion 54 through the first rotating groove 21 to realize the rotational connection between the cross bar 2 and the outer sleeve 51, and the cross bar 2 is sleeved on the first rotating portion 54 from top to bottom in the axial direction. After the sleeve connection, the cross bar 2 abuts against the first abutment portion 53 below, and the first abutment portion 53 plays a role of limiting and supporting the cross bar 2 to prevent the cross bar 2 from separating from the first rotating portion 54. At the same time, since the cross bar 2 is acted upon by the gravity of the material in a vertical downward direction, the abutment force of the first abutment portion 53 on the cross bar 2 is upward, which can balance the gravity of the material and thus play a supporting role for the cross bar 2.

[0046] Similarly, the support rod 3 can be sleeved on the second rotating part through the second rotating groove, and the support rod 3 abuts against the second abutting part, and the second abutting part exerts an upward abutting force on the support rod 3, balancing the vertical downward material gravity transmitted from the cross bar 2 to the support rod 3, thereby improving the bearing capacity of the support rod 3. In addition, in this way, the cross bar 2 and the support rod 3 do not need other fixing methods, and the disassembly and installation are more convenient, and the structure is also simple.

[0047] See also Figure 3 The hoisting device includes a fixing seat 7, the bottom of the fixing rod 1 is connected to the fixing seat 7, and the fixing seat 7 is used to connect with the external structural member. In practical applications, the fixing seat 7 usually plays a role of fixing with the load-bearing member, fixing the equipment at a specified position, facilitating the installation of the fixing rod 1, and evenly distributing the gravity transmitted by the fixing rod 1 to a larger contact area or a more stable external structural member.

[0048] See again Figure 3 The lifting equipment includes a load-bearing member 9 and a fixing bolt 8. The load-bearing member 9 is provided with a plurality of adjustment grooves 91 along its length direction. The adjustment grooves 91 extend along the length direction. The fixing seat 7 is slidably connected to the load-bearing member 9 and is locked to the load-bearing member 9 by the fixing bolt 8. The fixing seat 7 is provided with a fixing hole 71. The fixing bolt 8 passes through the fixing hole 71 and is fixed to the adjusting groove 91.

[0049] In actual applications, the on-site construction environment may not be able to provide suitable installation structures, or the rigidity of the structures may not be sufficient to install the fixing seat 7. Therefore, the present application provides a force-bearing member 9, and the force-bearing member 9 is provided with an adjustment groove 91 extending along its length. The fixing seat 7 can slide relative to the force-bearing member 9 to facilitate adjustment of the position of the fixing seat 7 to provide a better lifting location. When the fixing seat 7 slides to a suitable position, the fixing bolt 8 is inserted through the fixing hole 71 of the fixing seat 7 into the adjustment groove 91 and locked with the adjustment groove 91, so that the fixing seat 7 can be stably fixed on the force-bearing member 9.

[0050] It should be noted that the force bearing member 9 is made of a material with relatively high rigidity, such as steel, etc. A plurality of fixing holes 71 may be provided, and each fixing hole 71 is connected with a fixing bolt 8 to improve the stability of the fixing seat 7 and the force bearing member 9 .

[0051] See also Figure 5 The lifting equipment includes a connecting member 10, which is provided with a third rotating groove 101. The third rotating groove 101 is rotatably matched with the second rotating part, and the connecting member 10 is abutted with the second abutting part. The connecting member 10 is provided with a first connecting part 102 on the peripheral side of the third rotating groove 101, and the first connecting part 102 is connected to the support rod 3.

[0052] In actual application, since the support rod 3 is an obliquely arranged rod body, if a second rotating groove along the axial direction is opened on the support rod 3, the extension direction of the support rod 3 is different from the extension direction of the second rotating groove, resulting in that the support rod 3 cannot be a straight rod. The support rod 3 will form an angle at the position of the second rotating groove, so that the support rod 3 is in the form of a folded rod. The support rod 3 cannot effectively transmit the axial force because the angle will cause the force to decompose and generate a lateral component of force, and the support rod 3 itself is generally not designed to have a structure for bearing such a lateral component of force, which may affect the supporting capacity of the support rod 3.

[0053] Based on this, the present application provides a connecting member 10, which is provided with a third rotating groove 101. The connecting member 10 is sleeved on the second rotating part through the third rotating groove 101, and the connecting member 10 abuts against the second abutting part. The second abutting part plays a role of abutting and limiting the connecting member 10. The connecting member 10 is provided with a first connecting part 102 along the radial direction. The first connecting part 102 is connected to the support rod 3. The first connecting part 102 and the support rod 3 are fixed together by fixing parts such as bolts, so as to realize the rotating connection between the support rod 3 and the second rotating member 6, and does not affect the support rod 3 adopting a straight rod structure.

[0054] See also Figure 4 A second connecting portion is provided on one side of the cross bar 2 close to the support bar 3, and the support bar 3 is connected to the second connecting portion; the distance between the second connecting portion and the hook 4 is set to L1, and the distance between the hook 4 and the free end of the cross bar 2 is set to L2, L1<L2.

[0055] In practical applications, in order to connect the cross bar 2 and the support rod 3, a second connection portion is provided on the side of the cross bar 2 close to the support rod 3, and the support rod 3 and the second connection portion can be fixedly connected by bolts or other fixing parts to achieve the connection between the cross bar 2 and the support rod 3. Specifically, the second connection portion can be arranged below the cross bar 2, and the support rod 3 is also arranged below the cross bar 2. In this way, the support rod 3 is subjected to the downward pressure of the cross bar 2, and the compressive resistance of the support rod 3 is greater than the tensile resistance. Therefore, the support rod 3 is arranged below the cross bar 2, and the support effect of the support rod 3 is better.

[0056] It should be noted that the support rod 3 is made of steel, which usually has a high compressive yield strength and good compressive resistance.

[0057] At the same time, the distance between the second connecting part and the hook 4 is set to L1, and the distance between the hook 4 and the free end of the cross bar 2 is set to L2, L1<L2, that is, the position of the hook 4 and the second connecting part is very close, which is beneficial to reduce the bending moment caused by hoisting heavy objects on the cross bar 2 and improve the bearing capacity of the cross bar 2.

[0058] The present application also adopts a lifting method, using the above-mentioned lifting equipment to place the material on the hook 4, and then rotate the cross bar 2 and the support rod 3 to move them to the preset position, and place the material at the designated position; or rotate the cross bar 2 and the support rod 3 to move them to the preset position, and then place the material at the preset position on the hook 4, and then rotate the cross bar 2 and the support rod 3 to move the material to another location to complete the transportation of the material.

[0059] Different from the prior art, the embodiment of the present application provides a lifting equipment and a lifting method, including a fixed rod 1, a cross bar 2, a support rod 3 and a hook 4, the fixed rod 1 is arranged longitudinally; the cross bar 2 is arranged transversely and rotatably connected to the fixed rod 1; the support rod 3 has a first end and a second end relative to each other, the first end is rotatably connected to the fixed rod 1, and the second end is connected to the cross bar 2, the fixed rod 1, the cross bar 2 and the support rod 3 form a triangular structure; the hook 4 is connected to the end of the cross bar 2 away from the fixed rod 1, and the hook 4 is used to hook materials; the triangular structure is a right triangle, the cross bar 2 is one of the straight sides, the fixed rod 1 is the other straight side, the support rod 3 is the hypotenuse, the angle between the fixed rod 1 and the support rod 3 is α, the angle between the cross bar 2 and the support rod 3 is β, α<β. Compared with the prior art, the present application provides a cross bar 2 and a support bar 3. The cross bar 2 is rotatably connected to the fixed bar 1 so that the cross bar 2 can drive the material to move to the specified position. The support bar 3 enhances the bearing capacity of the cross bar 2 to prevent the cross bar 2 from being broken or bent by the material. At the same time, the angle between the fixed bar 1 and the support bar 3 is α, and the angle between the cross bar 2 and the support bar 3 is β. The angle β is set to be greater than the angle α, which effectively reduces the bending moment on the cross bar 2 and enhances the force stability of the cross bar 2.

[0060] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A lifting device, characterized in that: include: A fixing rod (1), wherein the fixing rod (1) is arranged longitudinally; A cross bar (2), which is arranged transversely and rotatably connected to the fixed bar (1); A support rod (3) having a first end and a second end opposite to each other, the first end being rotatably connected to the fixing rod (1), and the second end being connected to the cross rod (2), the fixing rod (1), the cross rod (2) and the support rod (3) forming a triangular structure; A hook (4) connected to an end of the cross bar (2) away from the fixed bar (1), and the hook (4) is used to hook materials; The triangular structure is a right triangle, the cross bar (2) is one of the straight sides, the fixed bar (1) is the other straight side, the support bar (3) is the hypotenuse, the included angle between the fixed bar (1) and the support bar (3) is α, the included angle between the cross bar (2) and the support bar (3) is β, and α<β.

2. The hoisting equipment according to claim 1, characterized in that: The lifting device comprises a first rotating member (5) and a second rotating member (6) which are arranged at intervals, and the first rotating member (5) and the second rotating member (6) both comprise an inner sleeve (52) and an outer sleeve (51), the inner sleeve (52) being sleeved on the fixed rod (1), the outer sleeve (51) being sleeved on the outer periphery of the inner sleeve (52) and being rotatably connected to the inner sleeve (52), the cross bar (2) being connected to the outer sleeve (51) of the first rotating member (5), and the support rod (3) being connected to the outer sleeve (51) of the second rotating member (6).

3. The hoisting equipment according to claim 2, characterized in that: The inner sleeve (52) is fixedly connected to the fixing rod (1); or, the inner sleeve (52) is detachably connected to the fixing rod (1); or, the inner sleeve (52) is threadedly connected to the fixing rod (1).

4. The hoisting equipment according to claim 3, characterized in that: The inner sleeve (52) partially extends out of the outer sleeve (51) to form a gripping portion (521), and the gripping portion (521) is fixedly connected to the fixing rod (1) or detachably connected or threadedly connected.

5. The hoisting equipment according to claim 2, characterized in that: The outer side surface of the outer sleeve (51) of the first rotating member (5) is provided with a first abutting portion (53) and a first rotating portion (54); the first abutting portion (53) is fixedly connected to the outer sleeve (51) along the radial direction of the outer sleeve (51); the first rotating portion (54) is connected to the first abutting portion (53) along the axial direction of the outer sleeve (51) and extends in a direction away from the first abutting portion (53); the cross bar (2) is provided with a first rotating groove (21); the cross bar (2) is sleeved on the outer periphery of the first rotating portion (54) through the first rotating groove (21) and abuts against the first abutting portion (53) along the axial direction of the outer sleeve (51); The outer side surface of the outer sleeve (51) of the second rotating member (6) is provided with a second abutment portion and a second rotating portion, the second abutment portion is fixedly connected to the outer sleeve (51) along the radial direction of the outer sleeve (51), the second rotating portion is connected to the second abutment portion along the axial direction of the outer sleeve (51) and extends in a direction away from the second abutment portion, the support rod (3) is provided with a second rotating groove, the support rod (3) is sleeved on the outer periphery of the second rotating portion through the second rotating groove, and abuts against the second abutment portion along the axial direction of the outer sleeve (51).

6. The hoisting equipment according to claim 2, characterized in that: The lifting device comprises a fixing seat (7), the bottom of the fixing rod (1) is connected to the fixing seat (7), and the fixing seat (7) is used to be connected to an external structural member.

7. The hoisting equipment according to claim 6, characterized in that: The lifting device comprises a force-bearing member (9) and a fixing bolt (8); the force-bearing member (9) is provided with a plurality of adjustment slots (91) along its length direction; the adjustment slots (91) extend along the length direction; the fixing seat (7) is slidably connected to the force-bearing member (9) and is locked to the force-bearing member (9) by the fixing bolt (8); the fixing seat (7) is provided with a fixing hole (71); the fixing bolt (8) passes through the fixing hole (71) and is fixed to the adjustment slot (91).

8. The hoisting equipment according to claim 5, characterized in that: The lifting device includes a connecting member (10), the connecting member (10) is provided with a third rotating groove (101), the third rotating groove (101) is rotatably matched with the second rotating part, and the connecting member (10) is abutted with the second abutting part, the connecting member (10) is provided with a first connecting part (102) on the peripheral side of the third rotating groove (101), and the first connecting part (102) is connected to the support rod (3).

9. The hoisting equipment according to claim 1, characterized in that: A second connecting portion (22) is provided on a side of the cross bar (2) close to the support bar (3), and the support bar (3) is connected to the second connecting portion (22); the distance between the second connecting portion (22) and the hook (4) is set to L1, and the distance between the hook (4) and the free end of the cross bar (2) is set to L2, and L1<L2.

10. A hoisting method, characterized in that: Using the lifting equipment described in any one of claims 1 to 9 above, the lifting method includes: placing the material on the hook (4), and then rotating the cross bar (2) to move to a preset position; or rotating the cross bar (2) to move to a preset position, and then placing the material on the hook (4).

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