Lifting appliance and lifting appliance assembly

Abstract

The utility model relates to the field of lifting appliances, in particular to a lifting appliance and a lifting appliance assembly. The lifting appliance comprises a bearing assembly and two guide sliding blocks, the moving path of any guide sliding block relative to the bearing assembly is a circular ring path or an arc path surrounding the bearing assembly. A plurality of first lifting lugs are arranged on the outer surface of the bearing assembly and limited to be distributed at equal intervals in the circumferential direction surrounding the bearing assembly. Any guide sliding block is provided with a second lifting lug, a connecting through hole of any second lifting lug is used for being hooked by a hook, and any connecting through hole is exposed out of the outline of the bearing assembly. In the process that the lifting appliance disclosed by the embodiment of the utility model is actually adopted to cross or climb over the barrier beam, the swinging amplitude generated by the bearing assembly can be limited through the counter-acting force from the barrier beam received by the second lifting lug.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lifting appliance, concretely is lifting appliance and lifting appliance subassembly. BACKGROUND

[0002] In the prior art, a patent document with the title of a hoisting transfer stand application, namely a pipe gallery hoisting pipe laying method, application number 202311740532.4 is provided; in the patent document, it is specifically proposed that a lifting connection part, a hoisting connection part and a transfer connection part are arranged on the transfer stand, and the three parts are arranged differently, in the hoisting process of hoisting a pipe in the transfer stand from one side of a longitudinal beam to the other side of the longitudinal beam (obstacle beam), the posture of the transfer stand is controlled by two cranes to achieve the effect of climbing over or crossing the longitudinal beam.

[0003] In the prior art, a patent document with the title of a hoisting transfer stand, application number 201721711336.4 is provided; in the patent document, a structure of a hoisting transfer stand is specifically provided, which is equivalent to the aforementioned transfer stand;

[0004] In the prior art, a patent document with the title of a hoisting transfer stand, application number 201721711336.4 is provided; in the patent document, a structure of a hoisting transfer stand is specifically provided, which is equivalent to the aforementioned transfer stand;

[0005] However, in all the above prior arts, when the two cranes cooperate with the transfer stand to make the action of climbing over or crossing the obstacle beam, the transfer stand is in a swinging posture, and the swinging amplitude is only controlled by the lifting speed of the hooks of the two cranes, so that the swinging amplitude of the heavy object lifted by the transfer stand is relatively large, which has a safety impact on the process of climbing over or crossing the obstacle beam, for example, when the swinging amplitude of the transfer stand and the heavy object is too large, the heavy object may contact the crane itself or other objects in the hoisting site, causing damage to the heavy object.

[0006] Therefore, during the process of climbing over or crossing the obstacle beam, how to limit the swinging posture of the transfer stand becomes a technical problem to be solved. SUMMARY

[0007] To solve the technical problem of limiting the swinging posture of the transfer stand during the process of climbing over or crossing the obstacle beam in the prior art, the utility model provides a lifting appliance and a lifting appliance subassembly.

[0008] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0009] According to one aspect of the utility model, a lifting appliance is provided, which comprises a load-bearing assembly and two guide sliding blocks.

[0010] The load-bearing assembly has a head end position, a middle position and a tail end position, the first guide slider is arranged between the head end position and the middle position, and the second guide slider is limited between the tail end position and the middle position, wherein the two guide sliders are respectively in movable and inseparable connection with the load-bearing assembly, and the movable path of any one of the guide sliders relative to the load-bearing assembly is a circular path or an arc path around the load-bearing assembly;

[0011] The outer surface of the load-bearing assembly is provided with a plurality of first lifting lugs, and the plurality of first lifting lugs are limited to be distributed at equal intervals in the circumferential direction around the load-bearing assembly;

[0012] A second lifting lug is arranged on each of the guide sliders, and a connecting through hole of any one of the second lifting lugs is used to be hooked by a hook, and the connecting through hole is exposed outside the outline of the load-bearing assembly.

[0013] Further, the load-bearing assembly comprises a load-bearing part and two limiting parts;

[0014] The load-bearing part has a cylindrical part and a thickened part, one end of the cylindrical part is located at the head end position, the other end of the cylindrical part is located at the tail end position, and the thickened part is located at the middle position, wherein the thickened part surrounds the cylindrical part, and the thickened part is integrally made with the cylindrical part;

[0015] The first limiting part is located at the head end position and detachably connected to the cylindrical part, wherein a first guide groove is formed between the first limiting part, the cylindrical part and the thickened part, and the extension direction of the first guide groove is limited to be a circular direction around the load-bearing assembly;

[0016] The second limiting part is located at the tail end position and detachably connected to the cylindrical part, wherein a second guide groove is formed between the second limiting part, the cylindrical part and the thickened part, and the extension direction of the second guide groove is limited to be a circular direction around the load-bearing assembly;

[0017] The first guide slider is arranged in the first guide groove, and the second guide slider is arranged in the second guide groove.

[0018] Further, a first half groove and a second half groove are arranged between the thickened part and the cylindrical part, the opening direction of the first half groove is limited to be along the direction from the middle position to the head end position, and the opening direction of the second half groove is limited to be along the direction from the middle position to the tail end position;

[0019] The first limiting part is provided with a third half slot, when the first limiting part is arranged on the cylindrical part, the opening direction of the third half slot is limited to the direction from the head end position to the middle position, and the first gap is formed between the first limiting part and the thickened part;

[0020] The second limiting part is provided with a fourth half slot, when the second limiting part is arranged on the cylindrical part, the opening direction of the fourth half slot is limited to the direction from the tail end position to the middle position, and the second gap is formed between the second limiting part and the thickened part;

[0021] The first half slot, the third half slot and the first gap jointly form the first guide slot;

[0022] The second half slot, the fourth half slot and the second gap jointly form the second guide slot.

[0023] Further, any one of the limiting parts is cylindrical;

[0024] Any one of the limiting parts is sleeved on the cylindrical part, and the limiting part and the cylindrical part are connected through bolts.

[0025] Further, along the axial direction of the cylindrical part, one end of the first guide slider is arranged in the third half slot, the other end of the first guide slider is arranged in the first half slot, and the second lug arranged on the first guide slider extends to the outside of the first guide slot through the first gap;

[0026] Along the axial direction of the cylindrical part, one end of the second guide slider is arranged in the fourth half slot, and the other end of the second guide slider is arranged in the second half slot, and the second lug arranged on the second guide slider extends to the outside of the second guide slot through the second gap.

[0027] Further, the first lug is fixedly or detachably connected with the thickened part, or the first lug is integrally formed with the thickened part;

[0028] The second lug is fixedly or detachably connected with the guide slider, or the second lug is integrally formed with the thickened part.

[0029] According to one aspect of the present application, a lifting assembly is provided, which comprises the lifting device as described above.

[0030] The above technical solution has the following advantages or beneficial effects:

[0031] The lifting appliance provided by the utility model has two guide sliding blocks arranged on the load bearing assembly, the two guide sliding blocks form a movable and inseparable connection structure with the load bearing assembly respectively, and the second lifting lugs are arranged on the two guide sliding blocks respectively, in the process of crossing or climbing over the barrier beam by using the lifting appliance, the reaction force from the barrier beam received by the second lifting lugs can limit the swing amplitude of the load bearing assembly, and the technical problem of how to limit the swing posture of the adapter frame in the process of crossing or climbing over the barrier beam in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 The structure schematic view of the lifting appliance provided by the utility model embodiment is shown in the figure.

[0033] Figure 2 The structure schematic view of the lifting appliance provided by the utility model embodiment is shown in the figure.

[0034] Figure 3 The sectional view of the lifting appliance provided by the utility model embodiment is shown in the figure.

[0035] Figure 4 The sectional view of the lifting appliance provided by the utility model embodiment is shown in the figure.

[0036] Figure 5 The structure schematic view of the limiting part provided by the utility model embodiment is shown in the figure.

[0037] Figure 6 The structure schematic view of the guide sliding block provided by the utility model embodiment is shown in the figure.

[0038] Figure 7 The structure schematic view of the auxiliary support provided by the utility model embodiment is shown in the figure.

[0039] Figure 8 The structure schematic view of the auxiliary support provided by the utility model embodiment is shown in the figure.

[0040] Figure 9 The structure schematic view of the tail end connecting part provided by the utility model embodiment is shown in the figure.

[0041] Figure 10 The sectional view of the tail end connecting part provided by the utility model embodiment is shown in the figure.

[0042] Figure 11 The structure schematic view of the adjusting assembly provided by the utility model embodiment is shown in the figure.

[0043] Figure 12 The structure schematic view of the lifting appliance and the auxiliary support provided by the utility model embodiment is shown in the figure. DETAILED DESCRIPTION Embodiment 1:

[0044] In the embodiment, a lifting appliance is provided to solve the problem of how to limit the swing posture of the adapter frame in the process of crossing or striding over the barrier beam in the prior art.

[0045] Specifically, referring to Figures 1 to 6 , the lifting appliance of the embodiment comprises a load-bearing assembly 1 and two guide sliding blocks 2.

[0046] The load-bearing assembly 1 has a head end position A, a middle position B and a tail end position C, the first guide sliding block 2 is arranged between the head end position A and the middle position B, and the second guide sliding block 2 is limited between the tail end position C and the middle position B, wherein the two guide sliding blocks 2 respectively form a movable and inseparable connection structure with the load-bearing assembly 1, and the movement path of any guide sliding block 2 relative to the load-bearing assembly 1 is a circular ring path or a circular arc path around the load-bearing assembly 1.

[0047] The outer surface of the load-bearing assembly 1 is provided with a plurality of first lifting lugs 101, and the plurality of first lifting lugs 101 are limited to be distributed at equal intervals in the circumferential direction around the load-bearing assembly 1.

[0048] Any guide sliding block 2 is respectively provided with a second lifting lug 201, and the connecting through hole of any second lifting lug 201 is respectively used to be hooked by a hook 0201, and any connecting through hole is respectively exposed outside the outline of the load-bearing assembly 1.

[0049] In the prior art, the swing posture of the adapter frame cannot be limited, which is essentially that the hooks of the two cranes can freely swing, especially in the process that the hooks of the two cranes hook the adapter frame respectively and the adapter frame makes a turning action under the action of the two hooks, the two hooks and the adapter frame can freely swing respectively; in another aspect, in the process that the adapter frame makes a turning action, no force other than the two hooks limits the motion of the adapter frame itself, so that the two hooks and the adapter frame will inevitably form a phenomenon that the swing posture cannot be limited.

[0050] The lifting appliance of the embodiment is provided with two guide sliding blocks 2 (see Figure 1 , Figure 2 or Figure 6 ) on the load-bearing assembly 1, and the two guide sliding blocks 2 respectively form a movable and inseparable connection structure relative to the load-bearing assembly 1, which enables the two guide sliding blocks 2 to make a turning action relative to the center line of the path according to the circular ring path or the circular arc path;

[0051] In actual application of the lifting appliance of the embodiment, the auxiliary support proposed in the following content needs to be used together, so that the lifting appliance of the embodiment is connected to the obstacle beam encountered in the lifting process through the auxiliary support; in other words, after the lifting appliance of the embodiment is connected to the obstacle beam through the auxiliary support, if the lifting appliance makes a turning action, then the lifting appliance applies a force to the obstacle beam through the auxiliary support, on the contrary, when the obstacle beam obtains the force, the obstacle beam applies a counterforce to the lifting appliance through the auxiliary support, and the counterforce limits the swinging posture of the lifting appliance of the embodiment.

[0052] More specifically, the connecting through hole (see Figure 1 or Figure 2 ) of the second lifting lug 201 on the two guide sliding blocks 2 is used to be hooked by the hook 0201 (see Figure 7 ) on the auxiliary support, after the auxiliary support is connected to the obstacle beam, the lifting appliance, the auxiliary support and the obstacle beam form an overall connecting structure;

[0053] The hooks of the two cranes hook any one of the first lifting lugs 101 on the lifting appliance; the number of the first lifting lugs 101 (see Figure 1 or Figure 2 ) is any one of the setting modes of 3-18; if the first hook hooks the first first lifting lug 101 and the weight hooks the second first lifting lug 101, then theoretically, the second hook should hook any one of the first lifting lugs 101 other than the first and second first lifting lugs 101; in fact, the balance of the lifting appliance also needs to be considered, if the connecting part of the first first lifting lug 101 hooked by the first hook and the connecting part of the second first lifting lug 101 hooked by the weight make a vertical straight line with the two connecting parts as points, then the position of the first lifting lug 101 hooked by the second hook should be located on the side of the straight line, and if the center line of a lifting appliance makes a horizontal plane, then the position of the first lifting lug 101 hooked by the second hook should be located above the horizontal plane, and if the position of the obstacle beam is considered, then from the perspective of crossing or climbing the obstacle beam, the positions of the first first lifting lug 101 hooked by the first hook and the first lifting lug 101 hooked by the second hook should be located on the two sides of the obstacle beam;

[0054] When the hooks of the two cranes are hooked on the two first lifting lugs 101 of the lifting appliance at the same time, and the lifting appliance forms a connecting structure with the auxiliary support and the obstacle beam through the second lifting lug 201, the hook of the first crane makes a descending action, the hook of the second crane makes a rising action, the load-bearing assembly 1 makes a overturning action, and then the two guide sliding blocks 2 are driven to form an overturning trend through the friction between the load-bearing assembly 1 and the two guide sliding blocks 2, among which, the center of gravity of the lifting appliance, or the center of gravity of the whole lifting appliance and the heavy object, is located on the side of the center, specifically, the center of gravity is close to the side of the first lifting lug 101, so that the whole lifting appliance produces a swinging trend along the direction from the first hook to the second hook relative to the obstacle beam;

[0055] However, affected by the “reaction force applied by the obstacle beam to the lifting appliance through the auxiliary support”, the reaction force becomes the tension between the auxiliary support and the lifting appliance, more specifically, the reaction force makes an opposite direction force through angular decomposition of force, which limits the swinging amplitude of the lifting appliance; in the case of limited swinging amplitude, the swinging posture of the lifting appliance of the embodiment is limited as a whole.

[0056] While the swinging amplitude is limited, the two guide sliding blocks 2 are actually unable to rotate together with the load-bearing assembly 1 due to the limitation of the “reaction force applied by the obstacle beam to the lifting appliance through the auxiliary support”, so that the two guide sliding blocks 2 are relatively static and the load-bearing assembly 1 is relatively dynamic. During the overturning process of the load-bearing assembly 1, the two guide sliding blocks 2 produce displacement relative to the load-bearing assembly 1 until the load-bearing assembly 1 terminates the overturning action.

[0057] From the perspective of comparison, assuming that there is a comparative technical solution that only has two second lifting lugs 201 and a load-bearing assembly 1, wherein the two second lifting lugs 201 of the comparative technical solution cannot produce relative motion with the load-bearing assembly 1, then comparing the technical solution of the embodiment with the comparative technical solution, while the swinging amplitude of the lifting appliance of the comparative technical solution is limited, the two second lifting lugs 201 cannot rotate relative to the load-bearing assembly 1, so that the two second lifting lugs 201 are damaged and deformed under the action of the swinging kinetic energy of the load-bearing assembly 1, or the auxiliary support connected to the lifting appliance of the comparative technical solution is damaged and deformed under the action of the swinging kinetic energy of the load-bearing assembly 1; therefore, the lifting appliance of the embodiment actually plays a role in improving the reliability of the lifting appliance by forming a movable and inseparable connecting structure between the two guide sliding blocks 2 and the load-bearing assembly 1.

[0058] Therefore, the lifting appliance provided by the embodiment is provided with two guide sliding blocks 2 on the load-bearing assembly 1, the two guide sliding blocks 2 are respectively in movable and inseparable connection with the load-bearing assembly 1, and the second lifting lugs 201 are respectively arranged on the two guide sliding blocks 2. In the process of actually using the lifting appliance to cross or pass over the barrier beam, the reaction force from the barrier beam received by the second lifting lugs 201 can limit the swing amplitude of the load-bearing assembly 1, thereby solving the technical problem of how to limit the swing posture of the adapter frame in the process of crossing or passing over the barrier beam in the prior art.

[0059] Further, in the foregoing scheme, how to limit the two sliding blocks to form a circular path around the load-bearing assembly 1 relative to the load-bearing assembly 1 is preferably achieved by the following technical scheme.

[0060] Referring to Figures 1 to 4 The lifting appliance of the embodiment includes a load-bearing component 110 and two limiting components 120.

[0061] The load-bearing component 110 has a cylindrical portion 111 and a thickened portion 112. One end of the cylindrical portion 111 is located at a head end position A, the other end of the cylindrical portion 111 is located at a tail end position C, and the thickened portion 112 is located at an intermediate position B. The thickened portion 112 surrounds the cylindrical portion 111, and the thickened portion 112 is integrally formed with the cylindrical portion 111.

[0062] The first limiting component 120 is located at the head end position A and is detachably connected to the cylindrical portion 111. The first limiting component 120, the cylindrical portion 111 and the thickened portion 112 form a first guide groove 130 therebetween, and the extension direction of the first guide groove 130 is limited to a circular direction around the load-bearing assembly 1.

[0063] The second limiting component 120 is located at the tail end position C and is detachably connected to the cylindrical portion 111. The second limiting component 120, the cylindrical portion 111 and the thickened portion 112 form a second guide groove 140 therebetween, and the extension direction of the second guide groove 140 is limited to a circular direction around the load-bearing assembly 1.

[0064] The first guide sliding block 2 is arranged in the first guide groove 130, and the second guide sliding block 2 is arranged in the second guide groove 140.

[0065] Referring to Figure 3 The first limiting component 120 and the load-bearing component 110 form the first guide groove 130 therebetween, and the first guide sliding block 2 is arranged in the first guide groove 130, so that the first guide sliding block 2 is in movable and inseparable connection with the first guide groove 130. Similarly, the second guide sliding block 2 is in movable and inseparable connection with the second guide groove 140.

[0066] On the basis that the two guide sliders 2 form movable and inseparable connection structures with respect to the corresponding guide slots, the movement path of the first guide slider 2 is limited by the first guide slot 130, and since the extension direction of the first guide slot 130 is limited to the circular ring direction around the load-bearing assembly 1, the movement path of the first guide slider 2 is limited to a circular ring path; similarly, since the extension direction of the second guide slot 140 is limited to the circular ring direction around the load-bearing assembly 1, the movement path of the second guide slider 2 is limited to a circular ring path.

[0067] Further, in all the above-mentioned schemes, how to realize that the two guide sliders 2 form movable and inseparable connection structures with respect to the load-bearing assembly 1 is preferably achieved by the following technical scheme.

[0068] Referring to Figure 3 Or Figure 4 , the spreader of the embodiment is provided with a first half slot S1 and a second half slot S2 between the thickened part 112 and the cylindrical part 111, the opening direction of the first half slot S1 is limited to the direction from the middle position B to the head end position A, and the opening direction of the second half slot S2 is limited to the direction from the middle position B to the tail end position C;

[0069] The first limiting part 120 is provided with a third half slot S3, when the first limiting part 120 is arranged on the cylindrical part 111, the opening direction of the third half slot S3 is limited to the direction from the head end position A to the middle position B, and the first limiting part 120 and the thickened part 112 form a first gap J1;

[0070] The second limiting part 120 is provided with a fourth half slot S4, when the second limiting part 120 is arranged on the cylindrical part 111, the opening direction of the fourth half slot S4 is limited to the direction from the tail end position C to the middle position B, and the second limiting part 120 and the thickened part 112 form a second gap J2;

[0071] The first half slot S1, the third half slot S3 and the first gap J1 jointly constitute the first guide slot 130;

[0072] The second half slot S2, the fourth half slot S4 and the second gap J2 jointly constitute the second guide slot 140.

[0073] The first guide sliding block 2 is arranged in the first guide slot 130 along the axial direction of the cylindrical portion 111, one end of the first guide sliding block 2 is limited between the first half slot S1 and the cylindrical portion 111, and the other end of the first guide sliding block 2 is limited between the third half slot S3 and the cylindrical portion 111, and the second lug 201 arranged on the first guide sliding block 2 extends from the inside of the first guide slot 130 to the outside of the first guide slot 130 through the first gap J1; along the radial direction of the cylindrical portion 111, one end of the first guide sliding block 2 is clamped by the first half slot S1 and the cylindrical portion 111, and the other end of the first guide sliding block 2 is clamped by the third half slot S3 and the cylindrical portion 111, so that when the first guide sliding block 2 has a movement trend away from the cylindrical portion 111 along the radial direction of the cylindrical portion 111, the first guide sliding block 2 is blocked by the inner wall of the first half slot S1 and the inner wall of the third half slot S3, so that the first guide sliding block 2 forms a movable and inseparable connection structure relative to the first guide slot 130;

[0074] Similarly, along the axial direction of the cylindrical portion 111, one end of the second guide sliding block 2 is limited in the second half slot S2, and the other end of the second guide sliding block 2 is limited in the fourth half slot S4, and when the second guide sliding block 2 has a movement trend away from the cylindrical portion 111 along the radial direction of the cylindrical portion 111, the second guide sliding block 2 is blocked by the inner wall of the second half slot S2 and the inner wall of the fourth half slot S4, so that the second guide sliding block 2 forms a movable and inseparable connection structure relative to the second guide slot 140.

[0075] It should be understood that in addition to the foregoing scheme, the'movable and inseparable connection structure of the guide sliding block 2 relative to the bearing assembly 1' can also be achieved by other structures, for example, a guide slot (not shown in the figure) is arranged on the guide sliding block 2, and the guide slot is an arc-shaped slot as a whole when viewed along the axial direction of the cylindrical portion 111, and the cross section of the guide slot has a relatively small slot opening and a relatively large slot bottom when viewed along the circumferential direction of the cylindrical portion 111, which makes the profile of the guide slot in the shape of a T-shaped, and correspondingly, a guide sliding rail (not shown in the figure) can be arranged on the circumferential surface of the cylindrical portion 111 along the circumferential direction of the cylindrical portion 111, and the cross section of the guide sliding rail is arranged in the shape of a T-shaped, so that when the guide sliding rail is arranged in the guide slot, the movable and inseparable connection structure of the guide sliding block 2 and the first guide slot 130 or the second guide slot 140 is formed; however, in this structure, in order to enable the guide sliding rail to be inserted into the guide slot, the guide sliding rail must be divided into at least two segments, and the space formed between the two segments of the guide sliding rail is used for inserting the guide sliding block 2 into the guide slot of one of the guide sliding blocks 2, in other words, this arrangement limits the movement path of the guide sliding block 2 to a circular arc path.

[0076] Further, in the foregoing scheme, how to realize the connection between the limiting component 120 and the cylindrical part 111, and avoid the disconnection between the limiting component 120 and the cylindrical part 111, preferably the following scheme is adopted to realize.

[0077] The lifting appliance of the embodiment, see Figure 1 、 Figure 2 or Figure 5 Any one of the limiting components 120 is cylindrical respectively;

[0078] Any one of the limiting components 120 is sleeved on the cylindrical part 111, and the limiting component 120 is connected with the cylindrical part 111 through a bolt (not shown in the figure).

[0079] Among them, at least three through holes should be provided on the limiting component 120, and correspondingly, at least three through holes are provided on both sides of the cylindrical part 111; the position of the through hole on each side of the cylindrical part 111 should match the position of the through hole of the limiting component 120, so that each through hole of the cylindrical part 111 and the corresponding through hole of the limiting component 120 are in communication, then the bolt is respectively penetrated through the through hole of the cylindrical part 111 and the through hole of the limiting component 120, and the connection between the cylindrical part 111 and the limiting component 120 is formed by the bolt.

[0080] It should be understood that in addition to the bolt connection, other connection structures can also be used, such as positioning pins to connect the limiting component 120 and the cylindrical part 111, or a limiting ring with internal threads, a limiting boss and an external thread cylindrical part 111 are matched to clamp the limiting component 120, wherein the internal threads of the limiting ring are connected with the external threads of the cylindrical part 111.

[0081] Further, in the foregoing scheme, the connection mode of the first lifting lug 101 and the load-bearing component 110, and the connection mode of the second lifting lug 201 and the load-bearing component 110, preferably the following technical scheme is adopted to realize.

[0082] The first lifting lug 101 is fixedly or detachably connected with the thickening part 112, or the first lifting lug 101 is integrally made with the thickening part 112;

[0083] The second lifting lug 201 is fixedly or detachably connected with the guide sliding block 2, or the second lifting lug 201 is integrally made with the thickening part 112.

[0084] Specifically, according to the load-bearing data of the lifting appliance, the corresponding type of the first lifting lug 101 and the second lifting lug 201 is selected to meet the safety requirements of the lifting appliance;

[0085] If the load-bearing data of the lifting appliance is selected as relatively low data, it indicates that the lifting weight of the lifting appliance is relatively low, and correspondingly, the model of the first lifting lug 101 and the second lifting lug 201 with relatively low strength can be selected, and correspondingly, the connection mode between the first lifting lug 101 and the load-bearing component 110 (specifically, the thickened portion 112) and the connection mode between the second lifting lug 201 and the guide slider 2 can be respectively selected as threaded connection or positioning pin connection, etc., or an integrated scheme or a fixed connection scheme can be adopted;

[0086] If the load-bearing data of the lifting appliance is selected as relatively high data, it indicates that the lifting weight of the lifting appliance is relatively high, and correspondingly, the model of the first lifting lug 101 and the second lifting lug 201 with relatively high strength should be selected, and correspondingly, the connection mode between the first lifting lug 101 and the load-bearing component 110 (specifically, the thickened portion 112) and the connection mode between the second lifting lug 201 and the guide slider 2 should be selected as fixed connection, for example, the first lifting lug 101 is welded on the thickened portion 112, and the second lifting lug 201 is welded on the guide slider 2, or an integrated scheme should be selected, for example, the first lifting lug 101 is directly machined on the thickened portion 112 of the load-bearing component 110, and the second lifting lug 201 is directly machined on the guide slider 2. Embodiment 2

[0087] In this embodiment, an auxiliary support is provided to solve the technical problem of how to limit the swing posture of the transfer frame in the process of crossing or crossing the obstacle beam in the prior art.

[0088] Specifically, referring to Figure 7 or Figure 8 The auxiliary support in this embodiment includes a first connecting assembly 5, a second connecting assembly 6 and an adjusting assembly 7.

[0089] The first connecting assembly 5 and the second connecting assembly 6 are respectively provided with a head end connecting portion 01, a tail end connecting portion 02 and an extension portion 03, and the extension portion 03 is located between the head end connecting portion 01 and the tail end connecting portion 02.

[0090] The tail end connecting portion 02 includes a hook 0201 for hooking the connecting through hole of the second lifting lug 201;

[0091] The adjusting assembly 7 is used to adjust the spacing between the first connecting assembly 5 and the second connecting assembly 6.

[0092] The head end connecting portion 01 of the first connecting assembly 5 is used to connect with the obstacle beam in the use process, and the head end connecting portion 01 of the first connecting assembly 5 is used to connect with the obstacle beam in the use process.

[0093] The tail end connecting part 02 of the first connecting assembly 5 is provided with a hook 0201, which is used to hook the connecting through hole of the second lifting lug 201 in the aforementioned embodiment 1 during use (see Figure 12 Similarly, the hook 0201 (see Figure 12 ) of the tail end connecting part 02 of the second connecting assembly 6 is used to hook the connecting through hole of the second lifting lug 201 during use.

[0094] Since the lifting appliance in the aforementioned embodiment 1 can be manufactured in multiple models, specifically, there are at least two models of lifting appliances, the hoisting weights of which are the same, but the distance between the two second lifting lugs 201 of the first lifting appliance is different from the distance between the two lifting lugs of the second lifting appliance, which is a possible phenomenon; or in two lifting appliances of the same model, the second lifting lug 201 of one of the lifting appliances is bent, resulting in a distance between the two lifting lugs that is different from the distance between the two second lifting lugs 201 of the other lifting appliance, which is also a possible phenomenon;

[0095] Therefore, the auxiliary support of the present embodiment adjusts the distance between the first connecting assembly 5 and the second connecting assembly 6 by setting the adjusting assembly 7, so that the auxiliary support can match more models of lifting appliances, or so that the auxiliary support can be applied to 'lifting appliances of the same model' or 'lifting appliances of different models' with a distance between the two lifting lugs within a certain range.

[0096] In the actual use of the auxiliary support of the present embodiment, the auxiliary support should be used in cooperation with the lifting appliance in the aforementioned embodiment 1, so as to achieve the purpose of limiting the swinging posture of the adapter frame; for details, please refer to the content of the aforementioned embodiment 1, which will not be described here.

[0097] Further, on the basis of the foregoing scheme, the present embodiment provides a preferred structure of the auxiliary support, so as to facilitate understanding by those skilled in the art.

[0098] Specifically, referring to Figures 7 to 11 , the head end connecting part 01 of the auxiliary support of the present embodiment is provided as a clamp (not shown in the figure) or a hook;

[0099] The extension part 03 is provided as a telescopic rod;

[0100] The tail end connecting part 02 further comprises a ball joint 021, the ball joint 021 having a fixed part 0211 and a swinging part 0212, the swinging part 0212 being swingably connected to the fixed part 0211, and the hook 0201 being detachably connected to the swinging part 0212;

[0101] The head end connecting part 01 is detachably or fixedly connected to one end of the extension part 03 along the extension direction of the extension part 03, and the tail end connecting part 02 is detachably connected to the other end of the extension part 03;

[0102] The adjusting assembly 7 comprises a bidirectional screw rod 701, a first sleeve 702 and a second sleeve 703, the first sleeve 702 is connected with the first connecting assembly 5, the second sleeve 703 is connected with the second connecting assembly 6, one end of the bidirectional screw rod 701 is connected with the first sleeve 702, and the other end of the bidirectional screw rod 701 is connected with the second sleeve 703.

[0103] If the head end connecting part 01 is provided as a clamp, the clamp is used to surround the barrier beam and is connected as a ring after surrounding, so that the clamp and the barrier beam form a detachable connecting structure, and then the extension part 03 and the tail end connecting part 02 connected with the clamp form detachable connecting structures through the clamp respectively.

[0104] Similarly, if the head end connecting part 01 is provided as a hook (see Figure 8 ), the hook is used to hook the barrier beam, so that the hook and the barrier beam form a detachable connecting structure, and then the extension part 03 and the tail end connecting part 02 connected with the hook form detachable connecting structures through the hook respectively.

[0105] The telescopic rod is specifically a spring telescopic rod, and the specific structure of the spring telescopic rod is well known to those skilled in the art, which will not be described here.

[0106] It should be understood that the specific structure of the ball joint 021 is well known to those skilled in the art, wherein the specific connecting structure of the aforementioned fixed part 0211 and the swinging part 0212 is well known to those skilled in the art, which will not be described here.

[0107] In the tail end connecting part 02, the swinging part 0212 has a swinging angle relative to the fixed part 0211, which is well known to those skilled in the art, and on this basis, the hook 0201 forms a swingable connecting structure through the ball joint 021, when the hoist reaches the position of the hook 0201, the worker can adjust the position of the hook 0201 relative to the second lifting lug 201 on the hoist through the swinging mode, so as to facilitate the insertion of the hook tip of the hook 0201 into the connecting through hole of the second lifting lug 201.

[0108] The adjusting assembly 7 is used to adjust the distance between the first connecting assembly 5 and the second connecting assembly 6, specifically, the distance between the hooks 0201 of the first connecting assembly 5 and the hooks 0201 of the second connecting assembly 6 is defined as the first distance, and the distance between the two second lifting lugs 201 of the lifting tool is defined as the second distance, if the first distance is greater than the second distance or the first distance is less than the second distance, resulting in the situation that one of the hooks 0201 cannot hook the second lifting lug 201, then by rotating the bidirectional screw rod 701, the distance between the first sleeve 702 and the second sleeve 703 is reduced or expanded until the first distance is equal to the second distance (see Figure 12 ), that is, the two hooks 0201 can hook the two second lifting lugs 201 of the lifting tool respectively.

[0109] It should be understood that the bidirectional screw rod 701 can be provided with a hexagonal head for being rotated, and the hexagonal head is located between the two external threads of the bidirectional screw rod 701.

[0110] In actual use, first, the distance between the first connecting assembly 5 and the second connecting assembly 6 is adjusted by the adjusting assembly 7, so that the distance between the hooks 0201 of the first connecting assembly 5 and the hooks 0201 of the second connecting assembly 6 matches the distance between the two second lifting lugs 201 of the lifting tool, then the auxiliary support of the embodiment is connected to the obstacle beam through the two head end connecting parts 01, and after the connection, the tail end connecting part 02 and the extension part 03 are located at the lower part of the obstacle beam in the vertical direction.

[0111] When the worker operates the first hook to move the lifting tool to the lower part of the obstacle beam in the vertical direction, the worker hooks the hooks 0201 of the first connecting assembly 5 and the hooks 0201 of the second connecting assembly 6 to the two second lifting lugs 201 on the lifting tool respectively, and after the two hooks 0201 hook the lifting tool respectively, under the action of the gravity of the lifting tool itself or the gravity of the lifting tool and the lifted weight, the distance between the telescopic rods increases, and the spring in the telescopic rod accumulates energy.

[0112] When the worker hooks the lifting tool by operating the second hook, and makes a downward action by operating the first hook and makes an upward action by operating the second hook, since the two guide sliding blocks 2 of the hook are configured in a movable and inseparable connection structure relative to the load bearing assembly 1, the load bearing assembly 1 makes a turnover action relative to the obstacle beam.

[0113] The friction force between the two guide sliding blocks 2 and the load bearing assembly 1 forces the two sliding blocks to generate a turnover rotation trend respectively, but the two sliding blocks cannot generate a turnover action and can only generate a sliding action relative to the load bearing assembly 1 due to the limitation of the auxiliary support of the embodiment.

[0114] The telescopic rod can have a rising or falling trend with the overturning of the load-bearing assembly 1. Specifically, if the falling speed of the first hook is greater than the rising speed of the second hook, the load-bearing assembly 1 can have a falling trend for a certain period of time, at which time the telescopic rod is stretched with the falling of the lifting tool, thereby forming a falling trend; conversely, if the falling speed of the first hook is less than the rising speed of the second hook, the load-bearing assembly 1 can have a rising trend for a certain period of time, at which time the telescopic rod is retracted with the rising of the lifting tool, thereby forming a rising trend.

[0115] After the first hook is detached from the lifting tool, the worker continues to operate the second hook to make a rising or falling action, so that the overall length of the telescopic rod returns to the length before being stretched or retracted. At this time, the weight of the lifting tool or the lifting tool and the weight is borne by the second hook, and the telescopic rod does not bear or bears a small amount of the weight of the lifting tool or the lifting tool and the weight. The worker can release the connection between the two hooks 0201 of the auxiliary support and the two second lifting lugs 201 of the lifting tool, so that the auxiliary support is separated from the lifting tool, and the work is completed.

[0116] Further, in the foregoing scheme, how to facilitate the adjustment of the angle of the hook 0201 and the second lifting lug 201 of the lifting tool so that the hook 0201 can more conveniently hook the second lifting lug 201, and preferably the following scheme is adopted.

[0117] Referring to Figure 10 The auxiliary support of the embodiment is provided with a disc-shaped first boss 0213 on the swing part 0212;

[0118] The hook 0201 is provided with a disc-shaped second boss 0202;

[0119] Further comprising two positioning blocks D1 and two thrust bearings Z1, the two positioning blocks D1 form a cylindrical limiting space inside after assembly, and the two positioning blocks D1 form through holes at the axial ends after assembly, respectively, and the two through holes are communicated with the limiting space, wherein the first boss 0213, the second boss 0202 and the two thrust bearings Z1 are arranged in the limiting space, the second boss 0202 is arranged between the two thrust bearings Z1, one thrust bearing Z1 is arranged between the first boss 0213 and the second boss 0202, the swing part 0212 forms a clearance fit with one of the through holes, and the hook 0201 forms a clearance fit with the other through hole.

[0120] Among them, the two positioning blocks D1 are detachably connected, specifically by bolt connection.

[0121] The first boss 0213 of the swing part 0212, the second boss 0202 of the hook 0201 and the two thrust bearings Z1 are fixed inside the two positioning blocks D1, so that the first boss 0213 and the second boss 0202 are limited by the two positioning blocks D1 and cannot be separated before the two positioning blocks D1 are disassembled, thereby preventing the swing part 0212 and the hook 0201 from being separated from each other;

[0122] The second boss 0202 on the hook 0201 forms a rotary pair with the two positioning blocks D1 through the two thrust bearings Z1, avoiding direct friction between the hook 0201 and the two positioning blocks D1, and improving the reliability of the auxiliary support of the embodiment;

[0123] When the hook 0201 and the second lifting lug 201 of the lifting tool form an angle in the horizontal direction, for example, the opening direction of the connecting through hole of the second lifting lug 201 is the Y-axis direction, and the hook tip of the hook 0201 points to the X-axis direction, so that the hook 0201 and the second lifting lug 201 form an angle in the horizontal direction, at this time, the hook tip of the hook 0201 can be rotated relative to the two positioning blocks D1 to point to the Y-axis direction, and then the hook 0201 can be inserted into the connecting through hole of the second lifting lug 201. Embodiment 3

[0124] In this embodiment, referring to Figure 12 , a lifting tool assembly is provided, which comprises the lifting tool in the foregoing embodiment 1 and the auxiliary support in the foregoing embodiment 2.

[0125] In this embodiment, the specific structure of the lifting tool, the role played and the technical effects achieved are exactly the same as those of the lifting tool in the foregoing embodiment 1, and will not be repeated here.

[0126] In this embodiment, the specific structure of the auxiliary support, the role played and the technical effects achieved are exactly the same as those of the auxiliary support in the foregoing embodiment 2, and will not be repeated here.

[0127] The above only describes the preferred embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct or indirect application in other related technical fields according to the contents of the utility model specification and drawings are also included in the patent protection range of the utility model.

Claims

1. A sling, characterised in that The load-bearing assembly and two guide sliders are included. The load-bearing assembly has a head end position, a middle position and a tail end position, the first guide slider is arranged between the head end position and the middle position, and the second guide slider is limited between the tail end position and the middle position, wherein the two guide sliders form a movable and inseparable connection structure with the load-bearing assembly respectively, and the movement path of any guide slider relative to the load-bearing assembly is a circular path or an arc path around the load-bearing assembly. The outer surface of the load-bearing assembly is provided with a plurality of first lifting lugs, and the plurality of first lifting lugs are limited to be distributed at equal intervals in the circumferential direction around the load-bearing assembly. Any of the guide sliders is respectively provided with a second lifting lug, and the connecting through hole of any of the second lifting lugs is used to be hooked by a hook, and any of the connecting through holes is exposed outside the outline of the load-bearing assembly.

2. The spreader of claim 1, characterized in that The load-bearing assembly includes a load-bearing component and two limiting components. The load-bearing component has a cylindrical part and a thickened part, one end of the cylindrical part is located at the head end position, the other end of the cylindrical part is located at the tail end position, and the thickened part is located at the middle position, wherein the thickened part surrounds the cylindrical part, and the thickened part is integrally made with the cylindrical part. The first limiting component is located at the head end position and is detachably connected to the cylindrical part, wherein the first limiting component, the cylindrical part and the thickened part form a first guide groove, and the extension direction of the first guide groove is limited to be a circular direction around the load-bearing assembly. The second limiting component is located at the tail end position and is detachably connected to the cylindrical part, wherein the second limiting component, the cylindrical part and the thickened part form a second guide groove, and the extension direction of the second guide groove is limited to be a circular direction around the load-bearing assembly. The first guide slider is arranged in the first guide groove, and the second guide slider is arranged in the second guide groove.

3. The spreader of claim 2, wherein A first half groove and a second half groove are arranged between the thickened part and the cylindrical part, the opening direction of the first half groove is limited to be along the direction from the middle position to the head end position, and the opening direction of the second half groove is limited to be along the direction from the middle position to the tail end position. The first limiting component is provided with a third half groove, when the first limiting component is arranged on the cylindrical part, the opening direction of the third half groove is limited to be along the direction from the head end position to the middle position, and the first limiting component and the thickened part form a first gap. The second limiting component is provided with a fourth half groove, when the second limiting component is arranged on the cylindrical part, the opening direction of the fourth half groove is limited to be along the direction from the tail end position to the middle position, and the second limiting component and the thickened part form a second gap. The first half groove, the third half groove and the first gap jointly constitute the first guide groove. The second half slot, the fourth half slot and the second gap jointly constitute the second guide slot.

4. The spreader of claim 2, wherein Each of the limiting parts is cylindrical; Each of the limiting parts is sleeved on the cylindrical part, and the limiting part and the cylindrical part are connected by bolts.

5. The spreader of claim 3, wherein Along the axial direction of the cylindrical part, one end of the first guide slider is arranged in the third half slot, the other end of the first guide slider is arranged in the first half slot, and the second lug arranged on the first guide slider extends to the outside of the first guide slot through the first gap. Along the axial direction of the cylindrical part, one end of the second guide slider is arranged in the fourth half slot, the other end of the second guide slider is arranged in the second half slot, and the second lug arranged on the second guide slider extends to the outside of the second guide slot through the second gap.

6. The spreader of claim 3, wherein The first lug is fixedly or detachably connected with the thickened part, or the first lug is integrally formed with the thickened part. The second lug is fixedly or detachably connected with the guide slider, or the second lug is integrally formed with the thickened part.

7. A spreader assembly characterised in that, The lifting device as claimed in claim 1.

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