Special lifting appliance for cement prefabricated part

Abstract

The utility model relates to the technical field of lifting appliances, in particular to a special lifting appliance for a cement prefabricated part, which solves the problems that the length of a clamping block of an existing lifting appliance cannot be adjusted and the clamping is unstable when a short clamping block clamps a longer prefabricated part by arranging a clamping assembly, so that the use effect of the lifting appliance is better, and the lifting appliance is convenient to use. By arranging the clamping assembly, the problems that the length of a clamping block of an existing lifting appliance cannot be adjusted, and clamping is unstable when a long prefabricated part is clamped by a short clamping block are solved, so that the using effect of the lifting appliance is better.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to a special sling for cement prefabricated parts. Background Art

[0002] Cement prefabricated parts are pipes, plates, columns, bricks, etc. made of cement and steel bars. Before making cement prefabricated parts, paper, sand and other materials are spread on the ground to prevent cement products from sticking to the ground. Now, for hundreds or thousands of square meters of prefabricated board casting sites (usually cement floors), you only need to spray LDG-1 isolation agent on the cement floor, and then pour cement mortar on the ground mold. After the cement mortar solidifies, it becomes a cement board. When lifting, the cement prefabricated parts are very easy to separate from the ground mold. Because cement prefabricated parts are large in size and relatively heavy, they are mainly transported by hoists in the later use and transportation.

[0003] The length of the clamping block of the existing hoist cannot be adjusted. The short clamping block will cause unstable clamping of the longer prefabricated parts, causing the prefabricated parts to fall, posing a safety hazard to the construction site. Therefore, a special hoist for cement prefabricated parts is needed to improve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a special hanger for cement prefabricated parts to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A special hanger for cement precast parts, comprising a hook, a first connecting shaft being rotatably connected to the lower side of the hook through a connecting hole, a first short plate being installed on the outer wall of the first connecting shaft and correspondingly on the left and right sides, the other ends of the two first short plates being rotatably connected to the second connecting shaft through connecting holes, a first long plate being rotatably connected to the outer wall of the second connecting shaft and correspondingly on the left and right sides, the two first long plates being rotatably connected to a limited axis through connecting holes, a second short plate being rotatably connected to the outer wall of the first connecting shaft and correspondingly on the left and right sides, the other ends of the two second short plates being rotatably connected to the third connecting shaft through connecting holes, and a first long plate being rotatably connected to the outer wall of the third connecting shaft and correspondingly on the left and right sides. A second long board is rotatably connected to the left and right sides, and a clamping assembly is installed at the other end of the first long board and the second long board, and the clamping assembly includes a mounting block, and slide grooves are correspondingly opened on the mounting block and located on the left and right sides, and the mounting block is slidably connected to a telescopic block through the slide grooves, and a support frame is installed on the end surface of the mounting block and at the center, and the support frame is rotatably connected to a screw rod through a connecting hole, and the screw rod is connected to a moving block through a thread, and an upper U-shaped seat is installed on the left and right side walls of the moving block, and a connecting pin of the upper U-shaped seat is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to a lower U-shaped seat through a connecting hole.

[0007] As a preferred solution of the utility model, the second long plate is rotatably connected to the outer wall of the limiting shaft through a connecting hole, and the other ends of the first long plate and the second long plate are respectively connected to corresponding mounting blocks.

[0008] As a preferred solution of the utility model, the mounting block is rotatably connected to the lower end of the screw rod through a connecting hole, and the end surface of the telescopic block is fixedly connected to the bottom of the lower U-shaped seat.

[0009] As a preferred solution of the utility model, a crank is installed on the upper end of the screw rod, and a movable groove is opened on the mounting block and located on the upper side of the slide groove.

[0010] As a preferred solution of the utility model, the support frame is arranged in a U-shaped structure, the slide groove is arranged in a T-shaped structure, and the slide groove and the telescopic block are arranged to match each other.

[0011] As a preferred solution of the utility model, the lengths of the sliding groove and the movable groove are the same, and the end faces of the connecting rod, the screw rod and the telescopic block form a triangular structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, a clamping assembly is provided in a special hanger for cement prefabricated parts, a screw rod in the assembly is used to drive a moving block to move downward, and two left and right connecting rods drive two left and right telescopic blocks to slide outward, so that the clamping part of the hanger is lengthened and the contact length with the prefabricated parts is increased, thereby improving the clamping stability of the prefabricated parts. The provision of the clamping assembly solves the problem that the length of the clamping block of the existing hanger cannot be adjusted, and the problem of unstable clamping of a long prefabricated part by a short clamping block is solved, thereby making the use effect of the hanger better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional top view structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional bottom-up structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the clamping assembly of the utility model.

[0017] In the figure: 1. hook; 2. first connecting shaft; 3. first short plate; 4. second connecting shaft; 5. first long plate; 6. limit shaft; 7. second short plate; 8. third connecting shaft; 9. second long plate; 10. clamping assembly; 101. mounting block; 102. slide groove; 103. telescopic block; 104. support frame; 105. screw rod; 106. moving block; 107. upper U-shaped seat; 108. connecting rod; 109. lower U-shaped seat; 110. crank handle; 111. movable groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] Example: See Figure 1-3The special hanger for cement precast parts shown in the figure comprises a hook 1, a first connecting shaft 2 is rotatably connected to the lower side of the hook 1 through a connecting hole, a first short plate 3 is installed on the outer wall of the first connecting shaft 2 and on the left and right sides respectively, the other ends of the two first short plates 3 are rotatably connected to the second connecting shaft 4 through the connecting hole, a first long plate 5 is rotatably connected to the outer wall of the second connecting shaft 4 and on the left and right sides respectively, the two first long plates 5 are rotatably connected to the limiting shaft 6 through the connecting hole, a second short plate 7 is rotatably connected to the outer wall of the first connecting shaft 2 and on the left and right sides respectively, the other ends of the two second short plates 7 are rotatably connected to the third connecting shaft 8 through the connecting hole, a second long plate 9 is rotatably connected to the outer wall of the third connecting shaft 8 and on the left and right sides respectively, a clamping assembly 10 is installed on the other ends of the first long plate 5 and the second long plate 9, the clamping assembly 10 comprises a mounting block 101, a slide groove 102 is opened on the mounting block 101 and on the left and right sides respectively, the mounting block 101 slides through the slide groove 102 A telescopic block 103 is rotatably connected, and a support frame 104 is installed on the end surface of the mounting block 101 and at the center. The support frame 104 is rotatably connected to a screw rod 105 through a connecting hole, and the screw rod 105 is connected to a moving block 106 through a thread. An upper U-shaped seat 107 is installed on the left and right side walls of the moving block 106. The connecting pin of the upper U-shaped seat 107 is rotatably connected to a connecting rod 108, and the other end of the connecting rod 108 is rotatably connected to a lower U-shaped seat 109 through a connecting hole. The screw rod 105 in the assembly is used to drive the moving block 106 to move downward, and the left and right connecting rods 108 drive the left and right telescopic blocks 103 to slide outward, so that the clamping part of the sling is increased and the contact length with the prefabricated part is increased, thereby improving the clamping stability of the prefabricated part. By setting the clamping assembly 10, the problem that the length of the clamping block of the existing sling cannot be adjusted is solved, and the problem that the short clamping block will be unstable when clamping a longer prefabricated part is solved, thereby making the use effect of the sling better.

[0023] In this embodiment, refer to Figure 1-3 As shown, the second long plate 9 is rotatably connected to the outer wall of the limit shaft 6 through the connecting hole, and the other ends of the first long plate 5 and the second long plate 9 are respectively connected to the corresponding mounting blocks 101; the mounting block 101 is rotatably connected to the lower end of the screw rod 105 through the connecting hole, and the end surface of the telescopic block 103 is fixedly connected to the bottom of the lower U-shaped seat 109; a crank 110 is installed on the upper end of the screw rod 105, and a movable groove 111 is provided on the mounting block 101 and located on the upper side of the slide groove 102; the movable groove 111 is provided on the mounting block 101 and located on the upper side of the slide groove 102, so that the connection between the lower U-shaped seat 109 and the telescopic block 103 can be realized to move the telescopic block 103, and at the same time, space is provided for the movement of the connecting rod 108, which provides a guarantee for the operation of the clamping assembly 10;

[0024] In this embodiment, refer to Figure 1-3As shown, the support frame 104 is set as a U-shaped structure, the slide groove 102 is set as a T-shaped structure, and the slide groove 102 and the telescopic block 103 are matched; the length of the slide groove 102 and the movable groove 111 are the same, and the connecting rod 108, the screw rod 105 and the end face of the telescopic block 103 form a triangular structure; by setting the mounting block 101 and opening the movable groove 111 on the upper side of the slide groove 102, whether the telescopic block 103 is extended or contracted, the telescopic block 103 is in a relatively stable state, and the stable structure of the triangle ensures that the telescopic block 103 is relatively stable in clamping the prefabricated part, so that the use effect of the sling is better;

[0025] Working principle: When the special lifting device for cement precast parts is used, the lifting device is lowered so that the precast parts are located in the middle of the front and rear mounting blocks 101. At this time, the pull rope drives the hook 1 to move the first connecting shaft 2 upward, and the first connecting shaft 2 moves the first short plate 3 and the limit shaft 6 upward. The first short plate 3 drives the second connecting shaft 4 to move the first long plate 5, and the second short plate 7 drives the third connecting shaft 8 to move the second long plate 9. The first long plate 5 and the second long plate 9 move synchronously with the mounting block 101 to move inward and upward, so as to clamp and carry the precast parts. When the clamping position is increased, the user shakes the crank 110 clockwise, and the crank 110 moves As the screw rod 105 rotates, the screw rod 105 moves the moving block 106 downward, and the moving block 106 moves with the connecting rods 108 on both sides through the upper U-shaped seat 107. The connecting rods 108 drive the lower U-shaped seat 109 away from the screw rod 105, and the lower U-shaped seat 109 extends the telescopic block 103 outward to increase the length of the clamping part; when the telescopic block 103 is retracted, it can be achieved by the opposite of the above-mentioned operating steps. By setting the clamping assembly 10, the problem of the length of the clamping block of the existing sling being unable to be adjusted is solved, and the problem of unstable clamping of the short clamping block when clamping a longer prefabricated part is solved, thereby making the use of the sling better.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special lifting device for cement precast parts, comprising a lifting hook (1), characterized in that: The lower side of the hook (1) is rotatably connected to a first connecting shaft (2) through a connecting hole; a first short plate (3) is correspondingly installed on the outer wall of the first connecting shaft (2) and located on the left and right sides; the other ends of the two first short plates (3) are rotatably connected to a second connecting shaft (4) through a connecting hole; a first long plate (5) is rotatably connected to the outer wall of the second connecting shaft (4) and located on the left and right sides; the two first long plates (5) are rotatably connected to a limiting shaft (6) through a connecting hole; a second short plate (7) is rotatably connected to the outer wall of the first connecting shaft (2) and located on the left and right sides; the other ends of the two second short plates (7) are rotatably connected to a third connecting shaft (8) through a connecting hole; a second long plate (9) is rotatably connected to the outer wall of the third connecting shaft (8) and located on the left and right sides; a clamping assembly (10) is installed at the other ends of the first long plate (5) and the second long plate (9); The clamping assembly (10) comprises a mounting block (101), on which sliding grooves (102) are correspondingly provided on the left and right sides of the mounting block (101), the mounting block (101) is slidably connected to a telescopic block (103) through the sliding grooves (102), a support frame (104) is installed on the end surface of the mounting block (101) and at the center, the support frame (104) is rotatably connected to a screw rod (105) through a connecting hole, the screw rod (105) is connected to a moving block (106) through a thread, an upper U-shaped seat (107) is installed on the left and right side walls of the moving block (106), a connecting pin of the upper U-shaped seat (107) is rotatably connected to a connecting rod (108), and the other end of the connecting rod (108) is rotatably connected to a lower U-shaped seat (109) through a connecting hole.

2. The special hanger for cement precast parts according to claim 1, characterized in that: The second long plate (9) is rotatably connected to the outer wall of the limiting shaft (6) through a connecting hole, and the other ends of the first long plate (5) and the second long plate (9) are respectively connected to corresponding mounting blocks (101).

3. The special hanger for cement precast parts according to claim 1, characterized in that: The mounting block (101) is rotatably connected to the lower end of the screw rod (105) through a connecting hole, and the end surface of the telescopic block (103) is fixedly connected to the bottom of the lower U-shaped seat (109).

4. The special hanger for cement precast parts according to claim 1, characterized in that: A crank (110) is installed at the upper end of the screw rod (105), and a movable groove (111) is provided on the mounting block (101) and located on the upper side of the slide groove (102).

5. The special hanger for cement precast parts according to claim 1, characterized in that: The support frame (104) is arranged in a U-shaped structure, the slide groove (102) is arranged in a T-shaped structure, and the slide groove (102) and the telescopic block (103) are arranged to match each other.

6. The special hanger for cement precast parts according to claim 1, characterized in that: The sliding groove (102) and the movable groove (111) have the same length, and the connecting rod (108), the screw rod (105) and the end surface of the telescopic block (103) form a triangular structure.

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