Pile puller for steel formwork support

Abstract

The utility model belongs to the technical field of water-stable steel formwork disassembly and assembly equipment, and discloses a pile extractor for a steel formwork support, which comprises a lever body, a first semicircular clamping ring is arranged on one side of the lever body, a first connecting rod is hinged between the first semicircular clamping ring and the lever body through a hinge piece, and a second connecting rod is hinged between the first semicircular clamping ring and the lever body. A second semicircular clamping ring is arranged on one side of the first semicircular clamping ring, the pile body clamping assembly comprises a sliding rod fixedly connected to the outer portion of the lever body through a connecting base, a sliding block is slidably connected to the outer portion of the sliding rod, and a pressing rod is hinged to the outer portion of the lever body through a hinge piece; a second connecting rod is hinged between the pressing rod and the sliding block through a hinge piece, a connecting plate is arranged on one side of the first semicircular clamping ring, the first semicircular clamping ring is fixedly connected with the two sets of connecting rods at the same time, a pull rope is fixedly connected with one side of the connecting plate, and the tail end of the pull rope is fixedly connected with the sliding block. And in addition, the situation that the pile body slips when being clamped can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of water-stable steel formwork disassembly and assembly equipment, and in particular relates to a pile puller used for a steel formwork support. Background Art

[0002] The water-stable layer steel formwork is a new type of building formwork. Compared with the traditional wooden formwork, the water-stable layer steel formwork has the advantages of light weight, long service life, low cost and high construction efficiency. It is suitable for the construction of water-stable layers such as roads, squares, and parking lots. The steel formwork usually needs to be disassembled after use, so a special pile puller is required. The pile puller is a tool or equipment in the prior art that is specially used to dismantle and remove piles, formwork or other fixings used in the construction process. It is usually used in construction and foundation engineering projects to safely and quickly remove the installed piles or formwork after the construction is completed.

[0003] For example, a Chinese utility model patent with publication number CN206784381U discloses a pile puller, which adjusts the left and right positions of two semicircular sleeves so that the two semicircular sleeves wrap around the pile body, and then installs bolts and nuts on the semicircular sleeves. The bolts and nuts make the two semicircular sleeves tightly wrap around the pile body, thereby clamping the pile body.

[0004] In actual use of the device, frequent tightening of the bolts or nuts may cause thread slippage, which may cause the connection between the semicircular sleeves to loosen, and further cause slippage between the semicircular sleeves and the pile body, affecting the smooth extraction of the pile body.

[0005] In summary, there is a need for a pile puller that can stably clamp piles. Utility Model Content

[0006] The utility model aims to provide a pile puller for a steel formwork support. The pile puller clamps the pile body by moving the second semicircular clamp ring closer to the first semicircular clamp ring. When the pile body is clamped, the pressing force directly acts on the lever body, thereby driving the device to perform a pile pulling operation on the pile body.

[0007] The utility model solves the above problems by adopting a technical solution: a pile puller for a steel formwork support, comprising:

[0008] A lever body, wherein the bottom of the lever body is hinged with a support rod via a hinge, a first semicircular clamping ring is arranged on one side of the lever body, a first connecting rod is hinged between the first semicircular clamping ring and the lever body via a hinge, a second semicircular clamping ring is arranged on one side of the first semicircular clamping ring, and a pile clamping assembly for driving the second semicircular clamping ring to approach the first semicircular clamping ring.

[0009] A further preferred technical solution is that the pile body clamping assembly includes a sliding rod fixedly connected to the outside of the lever body through a connecting seat, a slider slidably connected to the sliding rod, a first spring sleeved on the sliding rod, a pressure rod hinged to the lever body through a hinge, a second connecting rod hinged between the pressure rod and the slider through a hinge, a connecting rod fixedly connected to the second semicircular clamping ring and slidably connected to the first semicircular clamping ring, a connecting plate arranged on one side of the first semicircular clamping ring and fixedly connected to the connecting rod, and a pull rope fixedly connected to one side of the connecting plate and fixedly connected to the end of the pull rope and the slider.

[0010] A further preferred technical solution is that: a mounting plate is fixedly connected to the bottom end of the support rod, and a plurality of mounting holes are circumferentially arranged on the mounting plate.

[0011] A further preferred technical solution is that a plurality of anti-slip particles are arranged on the arc surfaces of the first semicircular clamp ring and the second semicircular clamp ring.

[0012] A further preferred technical solution is that two ends of the first spring are fixedly connected to the connecting seat and the sliding block respectively.

[0013] A further preferred technical solution is that an anti-slip sleeve is fixedly provided on the pressure rod.

[0014] A further preferred technical solution is that: a second spring is sleeved on the connecting rod, and two ends of the second spring are fixedly connected to the first semicircular clamp ring and the connecting plate respectively.

[0015] A further preferred technical solution is that a rope groove for installing the pull rope is provided in the lever body.

[0016] A further preferred technical solution is that a guide wheel is rotatably connected to the lever body.

[0017] A further preferred technical solution is that the pull rope is formed by twisting a plurality of single-strand steel cables.

[0018] In summary, the utility model has the following benefits:

[0019] 1. The utility model presses the pressure rod and utilizes the sliding cooperation between the slide rod and the slider, and the hinged effect between the slider and the pressure rod and the second connecting rod, so that the slider can be pushed to slide toward the other end of the slide rod. During the sliding process, the slider will also pull the pull rope to move, thereby driving the second semicircular clamp ring to approach the first semicircular clamp ring to clamp the pile body.

[0020] 2. After the utility model completes the clamping of the pile body, the pressing force will directly act on the lever body, thereby driving the device to perform a pile lifting operation on the pile body. The operation is simple, convenient and fast, which effectively improves the pile pulling efficiency and prevents slipping when the pile body is clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0023] Figure 3 for Figure 1 Enlarged structural diagram at B in the middle.

[0024] In the accompanying drawings, the components represented by each reference numeral are as follows: 1. lever body; 2. support rod; 3. first semicircular clamp ring; 4. first connecting rod; 5. second semicircular clamp ring; 6. mounting plate; 7. guide wheel; 101. slide rod; 102. slider; 103. first spring; 104. pressure rod; 105. second connecting rod; 106. connecting rod; 107. connecting plate; 108. pull rope; 109. second spring. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0027] Example:

[0028] Please combine Figure 1-3 , a pile puller for a steel formwork support of this embodiment includes:

[0029] A lever body 1, the bottom of the lever body 1 is hinged with a support rod 2 through a hinge, a first semicircular clamp ring 3 is arranged on one side of the lever body 1, a first connecting rod 4 is hinged between the first semicircular clamp ring 3 and the lever body 1 through a hinge, a second semicircular clamp ring 5 is arranged on one side of the first semicircular clamp ring 3, a mounting plate 6 is fixedly connected to the bottom end of the support rod 2, mounting holes with the same diameter are equidistantly opened on the mounting plate 6, which is convenient for fixing the device to the ground, so as to facilitate pile lifting, the first semicircular clamp ring 3 and the second semicircular clamp ring 5 are consistent in shape and size, the first semicircular clamp ring 3 can be spliced ​​with the second semicircular clamp ring 5 into a complete circular ring, which is convenient for clamping the cylindrical pile body;

[0030] The pile clamping assembly includes a slide bar 101 fixedly connected to the outside of the lever body 1 through a connecting seat, a slider 102 is slidably connected to the outside of the slide bar 101, a first spring 103 is sleeved on the outside of the slide bar 101, and the two ends of the first spring 103 are respectively fixedly connected to the connecting seat and the slider 102, so that the slider 102 can smoothly compress or stretch the first spring 103 when sliding, and a pressure rod 104 is hinged to the outside of the lever body 1 through a hinge, and an external fixed sleeve of the pressure rod 104 is provided with an anti-slip sleeve, which can increase the friction between the hand and the pressure rod 104 to prevent slipping, and a second connecting rod 105 is hinged between the pressure rod 104 and the slider 102 through a hinge, and a connecting rod 106 is symmetrically fixedly connected to the second semicircular clamp ring 5 and connected The rod 106 is slidably connected to the first semicircular clamp ring 3, a connecting plate 107 is provided on one side of the first semicircular clamp ring 3 and is fixedly connected to the two groups of connecting rods 106 at the same time, a pull rope 108 is fixedly connected to one side of the connecting plate 107 and the end of the pull rope 108 is fixedly connected to the slider 102, a second spring 109 is sleeved on the outside of the connecting rod 106, and the two ends of the second spring 109 are respectively fixedly connected to the first semicircular clamp ring 3 and the connecting plate 107, so that after the pressure rod 104 is released, the second semicircular clamp ring 5 can automatically reset, a rope groove matching the diameter of the pull rope 108 is opened inside the lever body 1, and the outside of the lever body 1 is rotatably connected to the guide wheel 7, and the pull rope 108 is formed by twisting multiple single-strand steel cables, which can increase the strength of the pull rope 108.

[0031] The implementation principle of a pile puller for a steel formwork support in the embodiment of the present application is as follows: first, the mounting plate 6 is brought into contact with the ground and the pile body is inserted between the first semicircular clamp ring 3 and the second semicircular clamp ring 5, and then the pile body is fixed to the ground by means of mounting bolts, and then the pressure rod 104 is pressed, and the sliding cooperation between the sliding rod 101 and the slider 102, and the hinged effect between the slider 102 and the pressure rod 104 and the second connecting rod 105 are utilized, so that the slider 102 can be pushed to slide toward the other end of the sliding rod 101 and compress the first spring 103. The slider 102 will also pull the pull rope 108 to move during the sliding process, and the sliding cooperation between the connecting rod 106 and the first semicircular clamp ring 3 is utilized. The second semicircular clamping ring 5 is closed, thereby driving the second semicircular clamping ring 5 to approach the first semicircular clamping ring 3 and stretch the second spring 109 to clamp the pile body. When the clamping of the pile body is completed, the pressing force will directly act on the lever body 1, thereby driving the device to perform a pile lifting operation on the pile body. When the lever body 1 is deflected downward by a certain angle by pressing, the pressure rod 104 is released, and the rebound effect of the first spring 103 and the second spring 109 is utilized to drive the pressure rod 104 and the second semicircular clamping ring 5 to automatically reset. The pressure rod 104 is repeatedly pressed in this way, so that the pile body can be smoothly lifted out, and finally the device can be separated from the ground.

[0032] In addition, a further improvement is that anti-skid particles are evenly arranged on the arc surfaces of the first semicircular clamp ring 3 and the second semicircular clamp ring 5, which can increase the friction between the first semicircular clamp ring 3 and the second semicircular clamp ring 5 and the pile body, thereby preventing slipping.

[0033] In addition, the same or similar element symbols are used to refer to the same or similar parts or steps in the drawings and descriptions as much as possible. The drawings are presented in simplified form and are not drawn to exact scale. For convenience and clarity only, directional terms such as top, bottom, front side, back side, left side, right side, front, back, upward, above, above, below, below, behind, and in front may be used with respect to the drawings. These and similar directional terms should not be construed as limiting the scope of the present disclosure in any way.

Claims

1. A pile puller for a steel formwork support, characterized in that: include: A lever body (1), the bottom of the lever body (1) is hingedly connected to a support rod (2) via a hinge, a first semicircular clamping ring (3) is provided on one side of the lever body (1), a first connecting rod (4) is hingedly connected between the first semicircular clamping ring (3) and the lever body (1) via a hinge, a second semicircular clamping ring (5) is provided on one side of the first semicircular clamping ring (3), and a pile clamping assembly for driving the second semicircular clamping ring to approach the first semicircular clamping ring.

2. A pile puller for a steel formwork support according to claim 1, characterized in that: The pile clamping assembly comprises a sliding rod (101) fixedly connected to the outside of the lever body (1) via a connecting seat, a sliding block (102) slidably connected to the sliding rod (101), a first spring (103) sleeved on the sliding rod (101), a pressure rod (104) hinged to the lever body (1) via a hinge, a second connecting rod (105) hinged between the pressure rod (104) and the sliding block (102) via a hinge, a connecting rod (106) fixedly connected to the second semicircular clamping ring (5) and slidably connected between the connecting rod (106) and the first semicircular clamping ring (3), a connecting plate (107) provided on one side of the first semicircular clamping ring (3) and fixedly connected to the connecting rod (106), and a pull rope (108) fixedly connected to one side of the connecting plate (107) and fixedly connected between the end of the pull rope (108) and the sliding block (102).

3. A pile puller for a steel formwork support according to claim 1, characterized in that: The bottom end of the support rod (2) is fixedly connected to a mounting plate (6), and a plurality of mounting holes are circumferentially arranged on the mounting plate (6).

4. A pile puller for a steel formwork support according to claim 1, characterized in that: A plurality of anti-slip particles are provided on the arc-shaped surfaces of the first semicircular clamping ring (3) and the second semicircular clamping ring (5).

5. A pile puller for a steel formwork support according to claim 2, characterized in that: The two ends of the first spring (103) are respectively fixedly connected to the connecting seat and the sliding block (102).

6. A pile puller for a steel formwork support according to claim 2, characterized in that: An anti-slip sleeve is fixedly provided on the pressure rod (104).

7. A pile puller for a steel formwork support according to claim 2, characterized in that: A second spring (109) is sleeved on the connecting rod (106), and two ends of the second spring (109) are respectively fixedly connected to the first semicircular clamp ring (3) and the connecting plate (107).

8. A pile puller for a steel formwork support according to claim 2, characterized in that: A rope groove for installing the pull rope (108) is provided in the lever body (1).

9. A pile puller for a steel formwork support according to claim 1, characterized in that: A guide wheel (7) is rotatably connected to the lever body (1).

10. A pile puller for a steel formwork support according to claim 2, characterized in that: The pull rope (108) is formed by twisting together a plurality of single-strand steel cables.

Images