Material frame lifting appliance

Abstract

The utility model provides a material frame lifting appliance which comprises a clamping jaw, a connecting arm and a driving mechanism, the clamping jaw is arranged at one end of the connecting arm, and the clamping jaw and the connecting arm are connected in a sliding mode and selectively fixed. The end, away from the clamping jaw, of the connecting arm is slidably connected with the driving mechanism and selectively fixed. The sliding directions of the clamping jaws and the connecting arms are linearly arranged, and the number of the clamping jaws and the number of the connecting arms are both at least two and are arranged in a mirror image mode. The driving mechanism is used for driving the clamping jaw and the connecting arm to move. The clamping jaws are connected with the driving mechanism through the connecting arms, and the clamping jaws, the connecting arms and the driving mechanism can slide relatively, so that the distance between the clamping jaws has the advantage of being diversified in adjusting mode, the distance adjusting range of the two clamping jaws is increased, the application range is further expanded, and the clamping device can adapt to clamping work of material frames of different models.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to a material frame sling. Background Art

[0002] During the production process, materials need to be transported. Some heavier materials need to be moved with the help of slings. Due to the differences in materials, slings are usually set up separately for each material. Different slings have different driving structures and clamping structures, and come in a variety of forms.

[0003] The invention patent application with the existing authorization announcement number CN109160415A discloses a simple and reliable nuclear waste barrel lifting clamp, including a central boom tube, a central telescopic rod and a supporting beam. The central boom tube is provided with a lifting ring. The upper end of the central telescopic rod is fixedly connected to the central boom tube, and the lower end is fixedly connected to the supporting beam. The two sides of the central boom tube are respectively hinged by a first hinged connecting rod and a second hinged connecting rod to have a first movable claw and a second movable claw that can cooperate with each other to lock the outer periphery of the nuclear waste barrel. The first movable claw and the second movable claw are slidably assembled at the two ends of the supporting beam.

[0004] For example, the sling in the above scheme relies on the movement of the central telescopic rod to drive the two moving claws to achieve displacement through the connecting rod. However, in this structure, the distance between the two claws can only be adjusted by the above-mentioned driving method, which is relatively simple and will limit the scope of application. Utility Model Content

[0005] In view of this, the utility model proposes a material frame hanger with diversified claw spacing adjustment methods and a wide range of applications, so as to solve the problem of a single claw spacing adjustment method in existing hangers.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides a material frame hanger, including a claw, a connecting arm and a driving mechanism, wherein:

[0007] The claw is arranged at one end of the connecting arm, and the claw is slidably connected to the connecting arm and can be selectively fixed;

[0008] One end of the connecting arm away from the claw is slidably connected to the driving mechanism and can be selectively fixed;

[0009] The sliding directions of the clamping claw and the connecting arm are arranged linearly, and at least two clamping claws and two connecting arms are arranged in a mirror image;

[0010] The driving mechanism is used to drive the claws and the connecting arm to move.

[0011] On the basis of the above technical solution, preferably, it further comprises a connecting rod, one end of which is connected to the end of the connecting arm away from the driving mechanism;

[0012] A thread is arranged at the end of the connecting rod away from the connecting arm, and the connecting rod is fixed with the claw through the thread and the nut.

[0013] On the basis of the above technical solution, preferably, the connecting arm includes a crossbeam, a sliding bearing and a spring, wherein:

[0014] One end of the crossbeam is connected to the claw, and the other end is connected to the driving mechanism;

[0015] The sliding bearing is arranged at the end of the crossbeam away from the driving mechanism;

[0016] The connecting rod is slidably connected with the sliding bearing, and a limit block is provided on the end plate of the connecting rod away from the clamping claw;

[0017] The spring is sleeved on the connecting rod, and the spring resists the sliding bearing and the limiting block.

[0018] On the basis of the above technical solution, preferably, it further includes a sleeve and a limit rod, wherein:

[0019] The sleeve is connected to the movable end of the driving mechanism, the connecting arm is inserted into the sleeve, and a plurality of positioning holes are opened on the connecting arm along the sliding direction;

[0020] The limiting rod is threadedly connected to the sleeve and inserted into the positioning hole.

[0021] On the basis of the above technical solution, preferably, the driving mechanism includes a hanger, a slide rail, a slider, a connecting rod and a driving rod, wherein:

[0022] The slide rail is arranged in the hanger;

[0023] The slider is slidably matched with the slide rail, and the slider is connected to the connecting arm;

[0024] One end of the connecting rod is rotatably connected to the slider;

[0025] The driving rod is slidably matched with the hanger and is rotationally connected with the other end of the connecting rod.

[0026] On the basis of the above technical solution, preferably, the driving mechanism further includes a swing arm and a limiting wheel, wherein:

[0027] One end of the swing arm is rotatably connected to the driving rod, and the other end is rotatably connected to the limiting wheel;

[0028] A guide groove is provided on the inner wall of the hanger, and the guide groove is used to guide the limiting wheel to move between the first point position and the second point position;

[0029] When the limiting wheel is at the first point, the two claws are relatively close;

[0030] When the limiting wheel is located at the second point position, the two claws are relatively far away from each other.

[0031] On the basis of the above technical solution, preferably, the hanger includes a box body, a first end plate and a second end plate, wherein:

[0032] The box body is connected vertically, and the first end plate and the second end plate are respectively arranged on an opening of the box body;

[0033] The slide rail, the slider and the connecting rod are located in the box;

[0034] The driving rod is slidably matched with the first end plate, and the swing arm passes through the first end plate;

[0035] The slider penetrates the second end plate.

[0036] On the basis of the above technical solution, preferably, the hanger further includes a lining plate, the lining plate is arranged on the inner wall of the box body, and the guide groove is opened on the lining plate.

[0037] On the basis of the above technical solution, preferably, the claw includes a connecting plate and a hook claw, wherein:

[0038] The connecting plate is detachably connected to one end of the connecting arm;

[0039] The hook claw is detachably connected to the connecting plate.

[0040] On the basis of the above technical solution, preferably, the clamping claw further includes a limiting claw and a limiting pin, wherein:

[0041] The limiting claw is detachably connected to the connecting plate, and the limiting claw is located on one side of the hook claw;

[0042] The limit pin is arranged on the limit claw, and both the limit pin and the hook claw face the driving mechanism.

[0043] The material frame hanger of the utility model has the following beneficial effects compared with the prior art:

[0044] (1) The clamping jaws are connected to the driving mechanism by a connecting arm, and the clamping jaws, the connecting arm and the driving mechanism can slide relative to each other, which makes the clamping jaw spacing have the advantage of diversified adjustment methods, and increases the adjustment range of the spacing between the two clamping jaws, thereby expanding the application range and being able to adapt to the clamping work of different types of material frames;

[0045] (2) The connecting arm is provided with a sliding bearing and a spring for installing a connecting rod. In this way, the connecting rod can realize elastic expansion and contraction under the cooperation of the sliding bearing, the limit block and the spring, so that the clamp can be adaptively adjusted to avoid the problem of damage to the material frame caused by excessive clamping;

[0046] (3) By setting a swing arm, a limit wheel and a guide groove, the travel of the driving rod is controlled by the cooperation of the limit wheel and the guide groove, and then the relative position of the two sliders is controlled, which is conducive to ensuring the stability of clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 It is a three-dimensional diagram of the material frame hanger of the utility model;

[0049] Figure 2 This is a front view of the material frame hanger of the utility model;

[0050] Figure 3 It is a top view of the material frame hanger of the utility model;

[0051] Figure 4 For the utility model Figure 3 Middle AA section view;

[0052] Figure 5 This is a schematic diagram of the internal structure of the material frame hanger of the utility model;

[0053] Figure 6 This is a front view of the internal structure of the material frame hanger of the utility model;

[0054] Figure 7 A three-dimensional diagram of the material frame hanger of the utility model with a handle added;

[0055] Figure 8 This is a structural diagram of the application state of the material frame hanger of the utility model;

[0056] In the figure: 1. claw; 11. connecting plate; 12. hook claw; 13. limit claw; 14. limit pin; 2. connecting arm; 21. crossbeam; 22. sliding bearing; 23. spring; 201. positioning hole; 3. driving mechanism; 31. hanger; 311. box; 312. first end plate; 313. second end plate; 314. lining plate; 32. slide rail; 33. slider; 34. connecting rod; 35. driving rod; 36. swing arm; 37. limit wheel; 301. guide groove; 302. first point; 303. second point; 4. connecting rod; 41. limit block; 5. sleeve; 6. limit rod; 100. handle; 200. material frame. DETAILED DESCRIPTION

[0057] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0058] like Figures 1 to 8 As shown, the material frame hanger of the utility model comprises a clamping claw 1, a connecting arm 2, a driving mechanism 3, a connecting rod 4, a sleeve 5 and a limiting rod 6, which is used to grab the material frame 200.

[0059] like Figures 1 to 4 As shown, the claw 1 is arranged at one end of the connecting arm 2, the claw 1 is slidably connected to the connecting arm 2 and can be selectively fixed; the end of the connecting arm 2 away from the claw 1 is slidably connected to the driving mechanism 3 and can be selectively fixed; the sliding directions of the claw 1 and the connecting arm 2 are arranged linearly, and the claw 1 and the connecting arm 2 are each provided with at least two claws, which are arranged in a mirror image; the driving mechanism 3 is used to drive the claw 1 and the connecting arm 2 to move;

[0060] As in the above structure, when grabbing the material frame 200, the driving mechanism 3 drives the two claws 1 to separate relatively, and after aligning with the material frame 200, the material frame 200 is clamped;

[0061] In order to increase the adjustment distance between the two claws 1, a sliding fit connection is provided for the claws 1, the connecting arm 2 and the driving mechanism 3, and the claws 1, the connecting arm 2 and the driving mechanism 3 can be selectively fixed so that the claws 1, the connecting arm 2 and the driving mechanism 3 are relatively fixed, so that the claws 1 have a larger adjustment range.

[0062] like Figure 4 As shown, one end of the connecting rod 4 is connected to the end of the connecting arm 2 away from the driving mechanism 3; the end of the connecting rod 4 away from the connecting arm 2 is provided with a thread, and the connecting rod 4 fixes the claw 1 through the thread and the nut;

[0063] As in the above structure, when setting the claw 1, the claw 1 can be clamped on the connecting rod 4 by two nuts. By adjusting the positions of the two nuts, the position of the claw 1 on the connecting rod 4 can be adjusted, thereby achieving the adjustment of the relative distance between the two claws 1.

[0064] like Figure 4As shown, the connecting arm 2 includes a crossbeam 21, a sliding bearing 22 and a spring 23, wherein one end of the crossbeam 21 is connected to the claw 1, and the other end is connected to the driving mechanism 3; the sliding bearing 22 is arranged at the end of the crossbeam 21 away from the driving mechanism 3; the connecting rod 4 is slidably connected to the sliding bearing 22, and a limit block 41 is arranged on the end plate of the connecting rod 4 away from the claw 1; the spring 23 is sleeved on the connecting rod 4, and the spring 23 abuts against the sliding bearing 22 and the limit block 41;

[0065] As in the above structure, when the claw 1 performs a clamping action, the claw 1 and the connecting rod 4 can slide by relying on the sliding bearing 22. At the same time, the spring 23 will perform a telescopic movement to achieve a buffering effect and ensure that the connecting rod 4 can hold the material frame 200 after sliding.

[0066] like Figures 1 to 4 As shown, the sleeve 5 is connected to the movable end of the driving mechanism 3, the connecting arm 2 is inserted into the sleeve 5, and a plurality of positioning holes 201 are opened on the connecting arm 2 along the sliding direction; the limiting rod 6 is threadedly connected to the sleeve 5 and inserted into the positioning hole 201;

[0067] As in the above structure, the driving mechanism 3 drives the sleeve 5 to move, and the connecting arm 2 is inserted in the sleeve 5. At this time, loosening the limiting rod 6 can make the connecting arm 2 drive the claw 1 to move along the sleeve 5, and then the connecting arm 2 and the sleeve 5 can be relatively fixed by the limiting rod 6; specifically, when fixing, the limiting rod 6 passes through the sleeve 5 and extends into the positioning hole 201 for limiting.

[0068] like Figures 4 to 6 As shown, the driving mechanism 3 includes a hanger 31, a slide rail 32, a slider 33, a connecting rod 34 and a driving rod 35, wherein the slide rail 32 is arranged in the hanger 31; the slider 33 is slidably matched with the slide rail 32, and the slider 33 is connected to the connecting arm 2; one end of the connecting rod 34 is rotatably connected to the slider 33; the driving rod 35 is slidably matched with the hanger 31, and is rotatably connected to the other end of the connecting rod 34;

[0069] As in the above mechanism, when in operation, the driving rod 35 can reciprocate relative to the hanger 31 , and at this time, the slider 33 can be driven to slide along the slide rail 32 through the connecting rod 34 , thereby adjusting the distance between the two claws 1 to achieve clamping of the material frame 200 .

[0070] like Figure 6As shown, the driving mechanism 3 further includes a swing arm 36 and a limiting wheel 37, wherein one end of the swing arm 36 is rotatably connected to the driving rod 35, and the other end is rotatably connected to the limiting wheel 37; a guide groove 301 is provided on the inner wall of the hanger 31, and the guide groove 301 is used to guide the limiting wheel 37 to move between a first point position 302 and a second point position 303; when the limiting wheel 37 is located at the first point position 302, the two claws 1 are relatively close; when the limiting wheel 37 is located at the second point position 303, the two claws 1 are relatively far away;

[0071] As in the above structure, the swing arm 36 will move with the driving rod 35. At the same time, since the limiting wheel 37 moves in the guide groove 301, it will drive the swing arm 36 to swing. When clamping the material frame, the limiting wheel 37 is located at the second point 303, and the two claws 1 are in a separated state. Then the driving rod 35 moves toward the connecting arm 2 and moves relative to the hanger 31. At this time, the connecting rod 34 drives the two sliders 33 to separate. Then the driving rod 35 moves away from the connecting arm 2. The limiting wheel 37 is driven by the guide groove 301 to move from the second point 303 to the first point 302. The two claws 1 close together to clamp the material frame 200, and then the lifting can be carried out.

[0072] Under the cooperation and limiting effect of the limiting wheel 37 and the guide groove 301 , the clamping instability of the clamping claw 1 can be avoided during operation.

[0073] like Figure 4 As shown, the hanger 31 includes a box body 311, a first end plate 312 and a second end plate 313, wherein the box body 311 is through-through from top to bottom, and the first end plate 312 and the second end plate 313 are respectively arranged on an opening of the box body 311; the slide rail 32, the slider 33 and the connecting rod 34 are located in the box body 311; the driving rod 35 is slidably matched with the first end plate 312, and the swing arm 36 passes through the first end plate 312; the slider 33 passes through the second end plate 313;

[0074] As described above, the hanger 31 adopts a box-mounted structure, so that the slide rail 32, the slider 33 and the connecting rod 34 are located in the box 311, which can avoid the moving components from being exposed to prevent component damage and personal injury.

[0075] like Figure 4 As shown, the hanger 31 further includes a lining plate 314, which is disposed on the inner wall of the box body 311, and the guide groove 301 is provided on the lining plate 314;

[0076] As in the above structure, by providing a lining plate 314 for opening the guide groove 301, it is possible to avoid affecting the structural strength of the hanger 31 due to the opening of the guide groove 301, thereby ensuring the reliability of use.

[0077] like Figure 1As shown, the claw 1 includes a connecting plate 11 and a hook claw 12, wherein the connecting plate 11 is detachably connected to one end of the connecting arm 2; the hook claw 12 is detachably connected to the connecting plate 11;

[0078] As in the above structure, when assembling the components, the connecting plate 11 is connected to the connecting arm 2 , and then the hook 12 is connected to the connecting plate 11 .

[0079] like Figure 1 As shown, the clamping claw 1 further includes a limiting claw 13 and a limiting pin 14, wherein the limiting claw 13 is detachably connected to the connecting plate 11, and the limiting claw 13 is located on one side of the hook claw 12; the limiting pin 14 is arranged on the limiting claw 13, and the limiting pin 14 and the hook claw 12 are both facing the driving mechanism 3;

[0080] As in the above structure, by setting the limiting claw 13, the claw 1 can be stably moved to the top of the material frame. Under the guiding action of the limiting claw 13, it is conducive to aligning the material frame 200. Then the limiting pin 14 will be placed on the material frame 200, and the hook claw 12 will be located on the side of the material frame 200. Then, the driving rod 35 is used for lifting. The driving rod 35 drives the two claws 1 to clamp the material frame 200 through the connecting rod 34 and the slider 33. The limiting wheel 37 will move to the first point 302 to ensure stable lifting.

[0081] like Figure 7 and Figure 8 As shown, a handle 100 may be provided on the lifting device, and the handle 100 may be connected to a crane to achieve the transfer of the material frame 200 after lifting.

[0082] Specific implementation steps:

[0083] Before lifting, the limiting wheel 37 is located at the second point 303, and the two claws 1 are in an open state. Then the lifting device moves toward the material frame 200. Under the guidance of the limiting claws 13, the two claws 1 are conveniently aligned with the material frame 200. As the lifting device falls, the limiting pins 14 are placed on the material frame 200.

[0084] Then, the lifting device continues to move, and the claw 1 will not continue to move downward, but the driving rod 35 will continue to move, and then drive the sleeve 5, the connecting arm 2 and the claw 1 to move sideways through the connecting rod 34 and the slider 33, and at the same time, the limiting wheel 37 will escape from the second point 303 and move to the lowest point, at which time the claw 1 is fully opened;

[0085] When lifting, the driving rod 35 is pulled to drive the claw 1 to move, and the hook claw 12 engages the lower edge of the material frame 200. Under the traction of the driving rod 35, the two claws 1 are driven to merge, thereby clamping the material frame 200, and then lifting can be done.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A material frame hanger, characterized in that: It comprises a claw (1), a connecting arm (2) and a driving mechanism (3), wherein: The clamping claw (1) is arranged at one end of the connecting arm (2), and the clamping claw (1) is slidably connected to the connecting arm (2) and can be selectively fixed; One end of the connecting arm (2) away from the claw (1) is slidably connected to the driving mechanism (3) and can be selectively fixed; The sliding directions of the clamping claw (1) and the connecting arm (2) are arranged linearly, and at least two of the clamping claw (1) and the connecting arm (2) are arranged in a mirror image; The driving mechanism (3) is used to drive the clamping claw (1) and the connecting arm (2) to move.

2. The material frame hanger according to claim 1, characterized in that: It also comprises a connecting rod (4), one end of which is connected to the end of the connecting arm (2) away from the driving mechanism (3); The end of the connecting rod (4) away from the connecting arm (2) is provided with a thread, and the connecting rod (4) fixes the clamping claw (1) through a threaded fitting nut.

3. The material frame hanger according to claim 2, characterized in that: The connecting arm (2) comprises a crossbeam (21), a sliding bearing (22) and a spring (23), wherein: One end of the crossbeam (21) is connected to the claw (1), and the other end is connected to the driving mechanism (3); The sliding bearing (22) is arranged at an end of the crossbeam (21) away from the driving mechanism (3); The connecting rod (4) is slidably connected to the sliding bearing (22), and a limit block (41) is provided on an end plate of the connecting rod (4) away from the clamping claw (1); The spring (23) is sleeved on the connecting rod (4), and the spring (23) abuts against the sliding bearing (22) and the limiting block (41).

4. The material frame hanger according to claim 1, characterized in that: It also includes a sleeve (5) and a limiting rod (6), wherein: The sleeve (5) is connected to the movable end of the driving mechanism (3), the connecting arm (2) is inserted into the sleeve (5), and a plurality of positioning holes (201) are provided on the connecting arm (2) along the sliding direction; The limiting rod (6) is threadedly connected to the sleeve (5) and inserted into the positioning hole (201).

5. The material frame hanger according to any one of claims 1 to 4, characterized in that: The driving mechanism (3) comprises a hanger (31), a slide rail (32), a slider (33), a connecting rod (34) and a driving rod (35), wherein: The slide rail (32) is arranged in the hanger (31); The slider (33) is slidably matched with the slide rail (32), and the slider (33) is connected to the connecting arm (2); One end of the connecting rod (34) is rotatably connected to the slider (33); The driving rod (35) is slidably matched with the hanger (31) and is rotationally connected to the other end of the connecting rod (34).

6. The material frame hanger according to claim 5, characterized in that: The driving mechanism (3) further comprises a swing arm (36) and a limiting wheel (37), wherein: One end of the swing arm (36) is rotatably connected to the driving rod (35), and the other end is rotatably connected to the limiting wheel (37); The inner wall of the hanger (31) is provided with a guide groove (301), and the guide groove (301) is used to guide the limiting wheel (37) to move between a first point position (302) and a second point position (303); When the limiting wheel (37) is located at the first point position, the two clamping claws (1) are relatively close to each other; When the limiting wheel (37) is located at the second point position, the two clamping claws (1) are relatively far away from each other.

7. The material frame hanger according to claim 6, characterized in that: The hanger (31) comprises a box body (311), a first end plate (312) and a second end plate (313), wherein: The box body (311) is connected vertically, and the first end plate (312) and the second end plate (313) are each arranged on an opening of the box body (311); The slide rail (32), the slider (33) and the connecting rod (34) are located in the box body (311); The driving rod (35) is slidably matched with the first end plate (312), and the swing arm (36) passes through the first end plate (312); The sliding block (33) passes through the second end plate (313).

8. The material frame hanger according to claim 7, characterized in that: The hanger (31) further comprises a lining plate (314), wherein the lining plate (314) is arranged on the inner wall of the box body (311), and the guide groove (301) is opened on the lining plate (314).

9. The material frame hanger according to claim 1, characterized in that: The clamping claw (1) comprises a connecting plate (11) and a hook claw (12), wherein: The connecting plate (11) is detachably connected to one end of the connecting arm (2); The hook claw (12) is detachably connected to the connecting plate (11).

10. The material frame hanger according to claim 9, characterized in that: The clamping claw (1) further comprises a limiting claw (13) and a limiting pin (14), wherein: The limiting claw (13) is detachably connected to the connecting plate (11), and the limiting claw (13) is located on one side of the hook claw (12); The limiting pin (14) is arranged on the limiting claw (13), and the limiting pin (14) and the hook claw (12) are both facing the driving mechanism (3).

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