PVC (polyvinyl chloride) waterproof coiled material

Abstract

The utility model relates to the technical field of waterproof coiled materials, in particular to a PVC (polyvinyl chloride) waterproof coiled material, which comprises a coiled material main body and a coiled core, the coiled material main body comprises a synthetic sandwich, waterproof layers are arranged on both sides of the synthetic sandwich, the coiled material main body is wound on the outer wall of the coiled core, a pressing plate is mounted on the outer wall of the coiled material main body, and a waterproof layer is arranged on the outer wall of the coiled material main body. A receding opening is formed in one side of the pressing plate. A belt body unwound by the belt coil has self-contraction elastic acting force under the elastic acting force of the torsional spring in the belt body, so that the pressing plate can always keep the elastic acting force for extruding the coiled material main body outside the coil core, one end of the coiled material main body on the coil core can be pressed by the pressing plate after the coiled material main body is unwound and cut, and the coiled material main body is prevented from edge warping; therefore, the turnup edge does not need to be cut off before the coiled material main body is cut off next time, waste of the coiled material main body is prevented, the process of cutting off the turnup edge of the coiled material main body is omitted in the coil taking process, and the cutting efficiency of the coiled material main body can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof coiled materials, in particular to a PVC waterproof coiled material. Background Art

[0002] Polyvinyl chloride (PVC) waterproof membrane is a thermoplastic PVC membrane made of polyvinyl chloride resin as the main raw material, with a variety of chemical additives added. It is made through mixing, extrusion molding and vulcanization processes.

[0003] In the prior art, waterproof membrane products are usually rolled up on the outside of the roll core. The waterproof membrane wound on the outside of the roll core is relatively long, so it is necessary to unwind and cut the waterproof membrane in sections to take it out. After each cutting and taking out, the layered structure of the waterproof membrane is prone to warping. The warped edges need to be cut off before the next use, resulting in material waste.

[0004] Therefore, a PVC waterproof membrane is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art and solve the problem of taking waterproof membranes in a segmented unwinding and cutting manner, and the layered waterproof membranes are prone to warping after each cutting, and the warped edges need to be cut off before the next use, resulting in material waste, a PVC waterproof membrane is proposed.

[0006] The technical solution adopted by the utility model to solve its technical problem is: the PVC waterproof coiled material described in the utility model includes a coiled material body and a coil core, the coiled material body includes a synthetic sandwich core, and waterproof layers are arranged on both sides of the synthetic sandwich core. The coiled material body is wound around the outer wall of the coil core, and a pressure plate is installed on the outer wall of the coiled material body. A clearance opening is opened on one side of the pressure plate, and a first shaft rod is installed between the side walls of the clearance opening. A second shaft rod is installed on the other side of the pressure plate through a bracket, and one end of the coiled material body passes through the clearance opening, and the first shaft rod and the second shaft rod are respectively located on the two sides of the coiled material body.

[0007] Preferably, belt rolls are provided at both ends of the pressing plate, and one end of the belt bodies of the two belt rolls are respectively mounted on the shafts at both ends of the pressing plate.

[0008] Preferably, both ends of the pressing plate are provided with fitting snap-fitting sockets near one side edge, a rubber sleeve is clamped between the inner walls of the two fitting snap-fitting sockets, and the adjacent side walls of the two rubber sleeves are respectively fitted with the side walls of the coil body.

[0009] Preferably, a connection assembly is installed inside the sandwich core, and the connection assembly includes two connecting rods. The outer walls of the two connecting rods are provided with an annular groove near one end edge.

[0010] Preferably, a sealing sleeve is mounted on the outer wall of the annular groove, and the side walls of the two sealing sleeves are respectively fitted with the two ends of the winding core.

[0011] Preferably, one end of the two connecting rods is fixedly connected to a rotating circular plate, the two belt rolls are respectively sleeved between the outer walls of the two connecting rods, and the two sides of the belt roll are respectively in contact with the rotating circular plate and the adjacent side walls of the sealing sleeve.

[0012] Preferably, one end of one of the connecting rods is fixedly connected to a screw rod, and the other end of the other connecting rod is fixedly connected to a threaded sleeve, and the threaded sleeve and the screw rod are threadedly connected.

[0013] Beneficial effects of the utility model:

[0014] 1. In the utility model, the belt roll is installed by means of a connecting assembly installed inside the winding core, and the belt body released by the belt roll is connected to the pressure plate. The belt body released by the belt roll has a self-contracting elastic force under the elastic force of the internal torsion spring, so that the pressure plate can always maintain the elastic force to squeeze the coil body outside the winding core, so that one end of the coil body on the winding core can be pressed by the pressure plate after being unwound and cut, so as to prevent the coil body from warping, so that the warped edge does not need to be cut off before the coil body is cut next time, so as to prevent the waste of the coil body, and the process of cutting the warped edge of the coil body during the winding process can be omitted to improve the efficiency of cutting the coil body.

[0015] 2. In the utility model, the roll core itself is mostly made of paper material, which is easily softened under the action of moisture. After softening, the supporting effect on the roll body is reduced. When the connecting component installs the tape roll, the sealing sleeve can seal the two ends of the roll core, so that the space inside the roll core is closed, reducing the relative contact area between the roll core and the air, and reducing the possibility of softening of the roll core. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present 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 on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the coil body and the coil core in the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the pressure plate and the belt roll in the utility model;

[0020] Figure 4It is a three-dimensional diagram of the middle pressure plate and the rubber sleeve of the utility model;

[0021] Figure 5 It is a stereogram of the connection assembly in the utility model;

[0022] Legend:

[0023] 1. Coil body; 2. Coil core; 11. Synthetic sandwich core; 12. Waterproof layer; 3. Press plate; 31. Make way opening; 32. First shaft rod; 33. Second shaft rod; 4. Belt roll; 34. Set bayonet; 5. Rubber ferrule; 6. Connecting assembly; 61. Connecting rod; 62. Circular groove; 63. Sealing sleeve; 64. Rotating circular plate; 65. Screw rod; 66. Threaded sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Specific examples are given below.

[0026] See also Figure 1 - Figure 5 The utility model provides a PVC waterproof roll material, including a roll material body 1 and a roll core 2, the roll material body 1 includes a synthetic sandwich 11, both sides of the synthetic sandwich 11 are provided with a waterproof layer 12, the roll material body 1 is wound around the outer wall of the roll core 2, a pressing plate 3 is installed on the outer wall of the roll material body 1, a clearance opening 31 is opened on one side of the pressing plate 3, a first shaft rod 32 is installed between the side walls of the clearance opening 31, a second shaft rod 33 is installed on the other side of the pressing plate 3 through a bracket, one end of the roll material body 1 passes through the clearance opening 31, and the first shaft rod 32 and the second shaft rod 33 are respectively located on the two sides of the roll material body 1;

[0027] During operation, the coil body 1 wound on the outside of the coil core 2 is composed of a synthetic sandwich core 11 and a waterproof layer 12, so that the coil body 1 itself has waterproof performance, and one end of the coil body 1 passes through the opening 31, and then the coil body 1 is linked with the pressing plate 3 through the contact of the first shaft rod 32 and the second shaft rod 33 on its two sides;

[0028] like Figure 3 and Figure 4 As shown, belt rolls 4 are provided at both ends of the pressing plate 3, and one end of the belt bodies of the two belt rolls 4 is respectively fitted with the shafts at both ends of the pressing plate 3;

[0029] During operation, the belt body released by the belt roll 4 is connected to the pressing plate 3, and a torsion spring is installed inside the belt roll 4, so that the belt body released by the belt roll 4 has an elastic force of retraction, and then the pressing plate 3 has an elastic force of squeezing in the direction of the axis of the coil body 1;

[0030] like Figure 1 and Figure 4 As shown, both ends of the pressing plate 3 are provided with a set bayonet 34 near one side edge, and a rubber clamp 5 is clamped between the inner walls of the two set bayonet 34, and the adjacent side walls of the two rubber clamps 5 are respectively fitted with the side walls of the coil body 1;

[0031] During operation, the pressing plate 3 installs the rubber sleeve 5 through the mounting bayonet 34, and after the winding core 2 is unwound, the rubber sleeve 5 is fitted to the side of the coil body 1. At this time, both sides of the pressing plate 3 can fit the outer wall of the coil body 1, and the cut end of the coil body 1 is pressed to prevent the coil body 1 from warping.

[0032] like Figure 1 , Figure 2 and Figure 5 As shown, a connecting assembly 6 is installed inside the sandwich core, and the connecting assembly 6 includes two connecting rods 61. An annular groove 62 is opened on the outer wall of the two connecting rods 61 near one end edge, and a sealing sleeve 63 is clamped on the outer wall of the annular groove 62. The side walls of the two sealing sleeves 63 are respectively fitted with the two ends of the winding core 2, and one end of the two connecting rods 61 is fixedly connected to a rotating circular plate 64. The two belt rolls 4 are respectively mounted between the outer walls of the two connecting rods 61, and the two sides of the belt roll 4 are respectively fitted with the adjacent side walls of the rotating circular plate 64 and the sealing sleeve 63. One end of one of the connecting rods 61 is fixedly connected to a screw rod 65, and the other end of the other connecting rod 61 is fixedly connected to a threaded sleeve 66, and the threaded sleeve 66 and the screw rod 65 are screwed.

[0033] When working, the connecting assembly 6 is installed inside the winding core 2 and the belt roll 4 is installed. By rotating the rotating circular plate 64, the two connecting rods 61 are spirally connected under the cooperation of the screw rod 65 and the threaded sleeve 66. At this time, the sealing sleeve 63 installed on the connecting rod 61 through the annular groove 62 can fit at both ends of the winding core 2, so that the winding core 2 can fix the connecting assembly 6.

[0034] Working principle: The coil body 1 wound on the outside of the winding core 2 is composed of a synthetic sandwich 11 and a waterproof layer 12, so that the coil body 1 itself has waterproof performance, and one end of the coil body 1 passes through the opening 31, and the two sides of the coil body 1 are respectively in contact with the first shaft 32 and the second shaft 33 to realize the linkage between the coil body 1 and the pressure plate 3, and the belt body released by the belt roll 4 is connected to the pressure plate 3, and the belt roll 4 is installed with a torsion spring, so that the belt body released by the belt roll 4 has an elastic force of retraction, and then the pressure plate 3 has an elastic force of extrusion in the direction of the axis of the coil body 1, and the pressure plate 3 is set The bayonet 34 is used to install the rubber ferrule 5. After the winding core 2 is unwound, the rubber ferrule 5 is fitted with the side of the coil body 1. At this time, both sides of the pressure plate 3 can fit the outer wall of the coil body 1 to press the truncated end of the coil body 1. The connecting component 6 is installed inside the winding core 2 and the tape roll 4 is installed. By rotating the rotating circular plate 64, the two connecting rods 61 are spirally connected with the cooperation of the screw rod 65 and the threaded sleeve 66. At this time, the sealing sleeve 63 installed on the connecting rod 61 through the annular groove 62 can fit on the two ends of the winding core 2, thereby realizing the fixation of the winding core 2 to the connecting component 6.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A PVC waterproof coiled material, characterized in that: The invention comprises a coil body (1) and a coil core (2), wherein the coil body (1) comprises a synthetic sandwich core (11), and both sides of the synthetic sandwich core (11) are provided with waterproof layers (12), the coil body (1) is wound around the outer wall of the coil core (2), and a pressure plate (3) is installed on the outer wall of the coil body (1), and a clearance opening (31) is opened on one side of the pressure plate (3), and a first shaft rod (32) is installed between the side walls of the clearance opening (31), and a second shaft rod (33) is installed on the other side of the pressure plate (3) through a bracket, and one end of the coil body (1) passes through the clearance opening (31), and the first shaft rod (32) and the second shaft rod (33) are respectively located on the two sides of the coil body (1).

2. A PVC waterproof coiled material according to claim 1, characterized in that: Belt rolls (4) are provided at both ends of the pressure plate (3), and one end of the belt bodies of the two belt rolls (4) are respectively mounted on the shafts at both ends of the pressure plate (3).

3. A PVC waterproofing coiled material according to claim 2, characterized in that: Both ends of the pressure plate (3) are provided with mounting slots (34) near one side edge, and a rubber sleeve (5) is mounted between the inner walls of the two mounting slots (34), and the adjacent side walls of the two rubber sleeves (5) are respectively fitted with the side walls of the coil body (1).

4. A PVC waterproof coiled material according to claim 3, characterized in that: A connection assembly (6) is installed inside the sandwich core. The connection assembly (6) comprises two connecting rods (61). An annular groove (62) is provided on the outer wall of the two connecting rods (61) near one end edge.

5. A PVC waterproof coiled material according to claim 4, characterized in that: The outer wall of the annular groove (62) is clamped with a blocking sleeve (63), and the side walls of the two blocking sleeves (63) are respectively fitted with the two ends of the winding core (2).

6. A PVC waterproofing coiled material according to claim 5, characterized in that: One end of the two connecting rods (61) is fixedly connected to a rotating circular plate (64), and the two belt rolls (4) are respectively sleeved between the outer walls of the two connecting rods (61), and the two sides of the belt rolls (4) are respectively in contact with the rotating circular plate (64) and the adjacent side walls of the sealing sleeve (63).

7. A PVC waterproofing coiled material according to claim 6, characterized in that: One end of one of the connecting rods (61) is fixedly connected to a screw rod (65), and the other end of the other connecting rod (61) is fixedly connected to a threaded sleeve (66), and the threaded sleeve (66) and the screw rod (65) are threadedly connected.

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