A protective film winding tool

Abstract

The utility model relates to a protective film winding tool, comprising an upper limit plate, a stainless steel middle axis, a lower limit plate, a connecting plate, at least two stainless steel extension rods, and a movable connecting pipe. The upper limit plate is installed on the top of the stainless steel middle axis with a quick-release screw, a ratchet rotation support mechanism is provided on the connecting plate, the lower limit plate is installed on the connecting plate, and the bottom of the stainless steel middle axis is connected to the connecting shaft of the ratchet rotation support mechanism with a set screw; the top of one of the stainless steel extension rods is screwed to the fixed connecting pipe at the bottom of the connecting plate, and any two adjacent stainless steel extension rods are connected through the movable connecting pipe. The beneficial effect is: it is convenient for a single operator to perform the protective film winding operation, and the risk factor of the operator is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a protective film winding tool. Background Art

[0002] After the concrete column is demoulded, it needs to be covered with film for maintenance. The film is wrapped around the column, and the entire column needs to be covered with several layers of film on the top and bottom.

[0003] The traditional approach is to have two operators positioned in front and behind the column, using a ladder to coordinate winding the protective film. They must repeatedly climb up and down the rack to wind the film back and forth. When the column cross-section is large, a third person may be required, resulting in low efficiency and high risk. Utility Model Content

[0004] The purpose of the utility model is to overcome the above problems existing in the prior art and provide a protective film winding tool.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A protective film winding tool comprises an upper limit plate, a stainless steel central axis, a lower limit plate, a connecting plate, at least two stainless steel extension rods, and a movable connecting tube. The upper limit plate is mounted on the top of the stainless steel central axis with quick-release screws, and a ratchet rotation support mechanism is provided on the connecting plate. The lower limit plate is mounted on the connecting plate, and the bottom of the stainless steel central axis is connected to the connecting shaft of the ratchet rotation support mechanism with a set screw; the top of one of the stainless steel extension rods is threadedly connected to the fixed connecting tube at the bottom of the connecting plate, and any two adjacent stainless steel extension rods are connected by a movable connecting tube.

[0007] In which, the ratchet rotation support mechanism includes a ratchet, a pawl, a limit block, a spring support plate, and a compression spring. A deep groove ball bearing is installed in the top center of the connecting disk, and a downwardly extending wheel axle is provided at the bottom of the ratchet. The wheel axle is interference fit in the inner ring of the deep groove ball bearing; the pawl is installed on the top of the connecting disk with a half-thread screw, and the pawl is located on one side of the ratchet; the limit block and the spring support plate are vertically fixed to the top of the connecting disk, the pawl is located between the limit block and the spring support plate, the compression spring is clamped between the pawl and the spring support plate, and the two ends of the compression spring are respectively connected to the pawl and the spring support plate.

[0008] Wherein, the bottom of the upper limit plate is provided with a conical upper guide surface, and the top of the lower limit plate is provided with a conical lower guide surface.

[0009] Among them, the inner sides of the fixed connecting tube and the movable connecting tube are respectively provided with internal threads, and the two ends of the stainless steel extension rod are respectively provided with a section of external threads. The external threads and the internal threads are screwed together to connect the stainless steel extension rod to the fixed connecting tube or the movable connecting tube.

[0010] The beneficial effects of the utility model are as follows: the protective film is put on the stainless steel central axis, and the operator holds the stainless steel extension rod and walks along the outer circumference of the concrete column, so that the protective film is wrapped along the concrete column. By adjusting the number of stainless steel extension rods connected and the height of the stainless steel extension rod held by the operator, the height of the protective film is adjusted, so that the protective film moves along the height direction of the concrete column; it is convenient for a single operator to perform the protective film wrapping operation, and the risk factor of the operator is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0012] Figure 1 This is a schematic structural diagram of the protective film winding tool in the present invention;

[0013] Figure 2 This is a partial structural diagram of the protective film winding tool in the present invention from a first perspective;

[0014] Figure 3 This is a partial structural diagram of the protective film winding tool of the present invention from a second perspective;

[0015] Figure 4 This is a schematic structural diagram of the upper limit plate in the utility model;

[0016] Figure 5 It is a structural diagram of the lower limit plate of the utility model;

[0017] Figure 6 This is a schematic structural diagram of the stainless steel central shaft in the utility model;

[0018] Figure 7 This is a schematic structural diagram of the ratchet rotation support mechanism and the connecting disk in the present invention;

[0019] Figure 8 It is a schematic structural diagram of the ratchet in the utility model;

[0020] Figure 9 This is a structural diagram of the movable connecting pipe in the utility model;

[0021] Figure 10 This is a schematic diagram of the structure of the stainless steel extension rod in the utility model;

[0022] Explanation of the numbers in the figure: upper limit plate 1, upper guide surface 11, upper circular through hole 12, stainless steel middle shaft 2, socket hole 21, lower limit plate 3, lower guide surface 31, lower circular through hole 32, connecting plate 4, fixed connecting tube 41, deep groove ball bearing 42, stainless steel extension rod 5, external thread 51, movable connecting tube 6, quick release screw 7, ratchet rotation support mechanism 8, ratchet 81, pawl 82, limit block 83, spring support plate 84, compression spring 85, wheel axle 86, connecting shaft 87, half-thread screw 88, set screw 9, internal thread 10. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0024] like Figures 1 to 10 As shown, a protective film winding tool includes an upper limit plate 1, a stainless steel middle axis 2, a lower limit plate 3, a connecting plate 4, at least two stainless steel extension rods 5, and a movable connecting tube 6. The upper limit plate 1 is installed on the top of the stainless steel middle axis 2 with a quick-release screw 7, a ratchet rotation support mechanism 8 is provided on the connecting plate 4, the lower limit plate 3 is installed on the connecting plate 4, and the bottom of the stainless steel middle axis 2 is connected to the connecting shaft 87 of the ratchet rotation support mechanism 8 with a set screw 9.

[0025] The ratchet rotation support mechanism 8 includes a ratchet 81, a pawl 82, a limit block 83, a spring support plate 84, and a compression spring 85. A deep groove ball bearing 42 is installed at the top center of the connecting disk 4, and a downwardly extending axle 86 is provided at the bottom of the ratchet 81. The axle 86 is interference fit in the inner ring of the deep groove ball bearing 42; the pawl 82 is installed on the top of the connecting disk 4 with a half-thread screw 88, and the pawl 82 is located on one side of the ratchet 81; the limit block 83 and the spring support plate 84 are vertically fixed to the top of the connecting disk 4, the pawl 82 is located between the limit block 83 and the spring support plate 84, and the compression spring 85 is clamped between the pawl 82 and the spring support plate 84, and the two ends of the compression spring 85 are respectively connected to the pawl 82 and the spring support plate 84. A connecting shaft 87 is fixed to the top center of the ratchet 81. The upper part of the connecting shaft 87 is inserted into the socket hole 21 at the bottom of the stainless steel central shaft 2. The connecting shaft 87 is connected to the stainless steel central shaft 2 along the radial direction of the stainless steel central shaft 2 by a set screw 9.

[0026] When the ratchet rotates normally, the teeth on its outer periphery push the pawl away from the ratchet. When the ratchet stops rotating, compression spring 85 applies pressure to pawl 82, causing it to deflect toward ratchet 81, preventing the ratchet from rotating backward and preventing the protective film from loosening. The stopper prevents pawl 82 from rotating due to the ratchet 81.

[0027] The bottom of the upper limit plate 1 is provided with a conical upper guide surface 11, and the center of the upper limit plate 1 is provided with an upper circular through hole 12 for the quick release screw 7 to pass through. The top of the lower limit plate 3 is provided with a conical lower guide surface 31, and the center of the lower limit plate 3 is provided with a lower circular through hole 32 for the connecting shaft 87 to pass through. The upper guide surface 11 and the lower guide surface 31 prevent the protective film from being stuck by the upper limit plate 1 and the lower limit plate 3.

[0028] The top of one of the stainless steel extension rods 5 is screwed to the fixed connecting pipe 41 at the bottom of the connecting plate 4 , and any two adjacent stainless steel extension rods 5 are connected via a movable connecting pipe 6 .

[0029] Specifically, an internal thread 10 is provided on the inner side of the fixed connecting tube 41 and the movable connecting tube 6, and an external thread 51 is provided at both ends of the stainless steel extension rod 5. The external thread 51 is screwed with the internal thread 10 to connect the stainless steel extension rod 5 to the fixed connecting tube 41 or the movable connecting tube 6. The height of the stainless steel central axis is adjusted by adjusting the number of connections of the stainless steel extension rod 5.

[0030] The protective film is put on the stainless steel central axis, and the operator holds the stainless steel extension rod and walks along the outer circumference of the concrete column to wrap the protective film along the concrete column. By adjusting the number of stainless steel extension rods connected and the height of the stainless steel extension rod held by the operator, the height of the protective film is adjusted, so that the protective film moves along the height direction of the concrete column; it is convenient for a single operator to perform the protective film wrapping operation and reduces the risk factor of the operator.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A protective film winding tool, characterized in that: It includes an upper limit plate, a stainless steel middle axis, a lower limit plate, a connecting plate, at least two stainless steel extension rods, and a movable connecting tube. The upper limit plate is installed on the top of the stainless steel middle axis with quick-release screws. A ratchet rotation support mechanism is provided on the connecting plate. The lower limit plate is installed on the connecting plate. The bottom of the stainless steel middle axis is connected to the connecting shaft of the ratchet rotation support mechanism with a set screw. The top of one of the stainless steel extension rods is threadedly connected to the fixed connecting tube at the bottom of the connecting plate, and any two adjacent stainless steel extension rods are connected by a movable connecting tube.

2. The protective film winding tool according to claim 1, characterized in that: The ratchet rotation support mechanism includes a ratchet, a pawl, a limit block, a spring support plate, and a compression spring. A deep groove ball bearing is installed at the top center of the connecting disk, and a wheel axle extending downward is provided at the bottom of the ratchet. The wheel axle is interference fit in the inner ring of the deep groove ball bearing; the pawl is installed on the top of the connecting disk with a half-thread screw, and the pawl is located on one side of the ratchet; the limit block and the spring support plate are vertically fixed to the top of the connecting disk, the pawl is located between the limit block and the spring support plate, the compression spring is clamped between the pawl and the spring support plate, and the two ends of the compression spring are respectively connected to the pawl and the spring support plate.

3. The protective film winding tool according to claim 1, characterized in that: The bottom of the upper limit plate is provided with a conical upper guide surface, and the top of the lower limit plate is provided with a conical lower guide surface.

4. The protective film winding tool according to claim 1, characterized in that: The inner sides of the fixed connection pipe and the movable connection pipe are respectively provided with internal threads, and the two ends of the stainless steel extension rod are respectively provided with a section of external threads, and the external threads are screwed with the internal threads to connect the stainless steel extension rod with the fixed connection pipe or the movable connection pipe.

Images