Clamping structure for hot melting butt joint of PVC (polyvinyl chloride) pipelines

Abstract

The utility model provides a clamping structure for hot melting butt joint of PVC pipelines, and belongs to the technical field of clamping mechanisms. The clamping structure for hot melting butt joint of the PVC pipelines comprises a heating plate, a base, an arc-shaped clamping plate, a second hydraulic cylinder, a clamping plate, a lifting mechanism and a longitudinal moving mechanism, the heating plate is installed on the lifting mechanism, when the clamping structure is used, a piston rod of the first hydraulic cylinder stretches out to enable the heating plate to move upwards, the heating plate does not interfere with abutting of the two PVC pipelines, and therefore the clamping plate is installed on the base. According to the clamping structure for the hot melting butt joint of the PVC pipelines, the clamping plates can be conveniently and rapidly replaced, time and labor are saved, and the clamping structure is convenient to operate, convenient to use, high in practicability and high in practicability and can be widely applied to the hot melting butt joint of the two PVC pipelines, and the ends of the two PVC pipelines abut against each other and are in butt joint together after a certain period of time. And the replacement efficiency of the clamping plates is improved, and better use experience is brought to a user.

Description

Technical Field

[0001] The present application relates to the technical field of clamping mechanisms, and in particular to a clamping structure for hot-melt butt jointing of PVC pipes. Background Art

[0002] Since the lengths of pipes are different when they are laid, PVC pipes need to be cut and butted according to the required length during the actual installation process. Hot-melt butt welding is a method used for butt welding of PVC pipes. The principle is to use a heating plate to melt the ends of the two sets of PVC pipes that are clamped and fixed, and then fit the ends of the two sets of PVC pipes together to allow them to naturally adhere after cooling. However, in order to meet the pipe diameter of the PVC pipe, the clamping and fixing mechanism of the PVC pipe often needs to replace the splint on the clamping mechanism. The replacement method is mostly to disassemble and install bolts, but the process of disassembling and installing multiple bolts is too time-consuming and labor-intensive, which reduces the efficiency of replacing the splint, that is, reduces the efficiency of butt welding of PVC pipes, which brings a bad user experience. Utility Model Content

[0003] In order to make up for the above shortcomings, the present application provides a clamping structure for hot-melt butt joint of PVC pipes, which aims to improve the current clamping and fixing mechanism of PVC pipes. In order to meet the pipe diameter of PVC pipes, it is often necessary to replace the clamping plate on the clamping mechanism, and the replacement method is mostly to disassemble and install bolts. However, the process of disassembling and installing multiple bolts is too time-consuming and labor-intensive, which reduces the replacement efficiency of the clamping plate, that is, reduces the butt joint efficiency of PVC pipes.

[0004] This application is implemented as follows:

[0005] The present application provides a clamping structure for hot-melt butt joint of PVC pipes, comprising a heating plate, a base, an arc-shaped clamping plate, a second hydraulic cylinder, a clamping plate, a lifting mechanism and a longitudinal movement mechanism, wherein the heating plate is mounted on the lifting mechanism, the lifting mechanism is arranged to realize the up and down movement of the heating plate, the base is mounted on the longitudinal movement mechanism, the longitudinal movement mechanism is arranged to realize the movement of two bases toward or in opposite directions, and one end of the arc-shaped clamping plate is hinged on the base;

[0006] One end of the second hydraulic cylinder is rotatably set on the base, and the end of the piston rod of the second hydraulic cylinder is rotatably set on the arc-shaped clamping plate. There are two clamping plates, and vertical rods are fixedly installed on the outer walls of the clamping plates. Different vertical rods pass through the base and the arc-shaped clamping plates respectively. Springs are fixed on the base and the arc-shaped clamping plates, and the other end of the spring is fixedly installed on the arc-shaped plate. A pin rod is fixedly installed on the arc-shaped plate, and the pin rod passes through the vertical rod.

[0007] In one embodiment of the present application, a plurality of uprights are provided, and the plurality of uprights are axially equidistantly arranged on the clamping plate.

[0008] In one embodiment of the present application, a first through hole is formed on the vertical pole, and the pin rod passes through the first through hole.

[0009] In one embodiment of the present application, a second through hole is formed on the base, and one end of the spring is fixed in the second through hole.

[0010] In one embodiment of the present application, the lifting mechanism comprises a column, a crossbar, a first hydraulic cylinder and a chain, and one end of the crossbar and an end of the first hydraulic cylinder are both rotatably disposed on the column;

[0011] The piston rod end of the first hydraulic cylinder is rotatably arranged on the cross bar, one end of the chain is mounted on the cross bar, and the other end of the chain is mounted on the heating plate.

[0012] In one embodiment of the present application, the longitudinal movement mechanism includes a base plate, a bidirectional screw, a guide rod, a support block and a motor, one end of the bidirectional screw is rotatably arranged in the base plate, the guide rod is fixed in the base plate, and the motor is fixed on the outer wall of the base plate;

[0013] The other end of the bidirectional screw is fixed to the output shaft of the motor, the support block is threadedly sleeved on the bidirectional screw, the support block is also slidably sleeved on the guide rod, and the base is fixed on the upper surface of the support block.

[0014] In one embodiment of the present application, an electric control cabinet is further included, and the first hydraulic cylinder, the heating plate, the motor and the second hydraulic cylinder are all connected to the electric control cabinet with electric wires.

[0015] The beneficial effects of the present application are as follows: the present application obtains a clamping structure for hot-melt butt joint of PVC pipes through the above-mentioned design. When in use, a clamping plate of a corresponding type is selected according to the model of the PVC pipe, and the arc plate is pushed, that is, the spring is compressed to make the pin rod leave the vertical rod, and then the clamping plate can be removed, and then the vertical rods on the two clamping plates of corresponding types are passed through the base and the arc clamping plate in turn, and the arc plate is loosened to make the pin rod pass through the vertical rod, so that the installation and fixation of the clamping plate is realized, and the first hydraulic cylinder works to move the cross bar downward, that is, to move the heating plate downward so that the heating plate is between the two bases, and then the PVC pipe is manually inserted into the base, and the end of the PVC pipe is fitted on the heating plate, and the second hydraulic cylinder works to make the arc clamping plate clamped on the base, so that the two clamping plates are fixed. The PVC pipe is clamped and fixed, and the heating plate works to melt the ends of the two PVC pipes. After a certain period of time, the motor works, and the rotation of the motor output shaft causes the ends of the two PVC pipes to leave the outer wall of the heating plate. Then the first hydraulic cylinder works, and the extension of the piston rod of the first hydraulic cylinder causes the heating plate to move up, so that the heating plate will not hinder the friction between the two PVC pipes. Then the output shaft of the motor is reversed to cause the ends of the two PVC pipes to frictionally butt together. After a certain period of time, the second hydraulic cylinder works to separate the arc-shaped clamping plate from the base, and finally the butt-jointed PVC pipe can be removed. The clamping structure for hot-melt butt joint of PVC pipes facilitates the rapid replacement of the clamping plate, saves time and effort, improves the replacement efficiency of the clamping plate, and brings a better use experience to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a clamping structure for hot-melt butt joint of PVC pipes provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the cross-sectional structure of the base plate provided in an embodiment of the present application;

[0019] Figure 3 A schematic diagram of the three-dimensional structure of the lifting mechanism provided in the embodiment of the present application;

[0020] Figure 4 A diagram showing the relationship between the base, the arc-shaped clamping plate and the clamping plate provided in the embodiment of the present application;

[0021] Figure 5A diagram showing the relationship between the clamping plate, the vertical rod, the pin rod, the spring and the curved plate provided in the embodiment of the present application;

[0022] Figure 6 A schematic diagram of the three-dimensional structure of the arc-shaped clamping plate and the clamping plate provided in an embodiment of the present application.

[0023] In the figure: 110 - lifting mechanism; 111 - column; 112 - cross bar; 113 - first hydraulic cylinder; 114 - chain; 120 - heating plate; 130 - longitudinal movement mechanism; 131 - bottom plate; 132 - bidirectional screw; 133 - guide rod; 134 - support block; 135 - motor; 140 - base; 150 - arc clamping plate; 160 - second hydraulic cylinder; 170 - clamping plate; 180 - electric control cabinet; 190 - column; 191 - pin rod; 192 - spring; 193 - arc plate; 194 - first through hole; 195 - second through hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] Example

[0026] See also Figure 1 - Figure 6 The present application provides a technical solution: a clamping structure for hot-melt butt joint of PVC pipes, comprising a heating plate 120, a base 140, an arc-shaped clamping plate 150, a second hydraulic cylinder 160, a clamping plate 170, a lifting mechanism 110 and a longitudinal movement mechanism 130, wherein the heating plate 120 is mounted on the lifting mechanism 110, and the setting of the lifting mechanism 110 enables the heating plate 120 to move up and down, and the lifting mechanism 110 comprises a column 111, a cross bar 112, a first hydraulic cylinder 113 and a chain 114, one end of the cross bar 112 and an end of the first hydraulic cylinder 113 are both rotatably arranged on the column 111, the end of the piston rod of the first hydraulic cylinder 113 is rotatably arranged on the cross bar 112, one end of the chain 114 is mounted on the cross bar 112, and the other end of the chain 114 is mounted on the heating plate 120;

[0027] The base 140 is installed on the longitudinal movement mechanism 130. The longitudinal movement mechanism 130 is set to realize the two bases 140 moving toward or oppositely. The longitudinal movement mechanism 130 includes a base plate 131, a bidirectional screw 132, a guide rod 133, a support block 134 and a motor 135. One end of the bidirectional screw 132 is rotatably set in the base plate 131, the guide rod 133 is fixed in the base plate 131, the motor 135 is fixed on the outer wall of the base plate 131, the other end of the bidirectional screw 132 and the output shaft of the motor 135 are fixed together, the support block 134 is threadedly sleeved on the bidirectional screw 132, and the support block 134 is also slidably sleeved on the guide rod 133. The base 140 is fixed on the upper surface of the support block 134, and one end of the arc-shaped clamping plate 150 is hinged on the base 140;

[0028] One end of the second hydraulic cylinder 160 is rotatably mounted on the base 140, and the end of the piston rod of the second hydraulic cylinder 160 is rotatably mounted on the arc-shaped clamping plate 150. Two clamping plates 170 are provided, and a vertical rod 190 is fixedly mounted on the outer wall of the clamping plate 170. Different vertical rods 190 penetrate the base 140 and the arc-shaped clamping plate 150 respectively. Springs 192 are fixed on the base 140 and the arc-shaped clamping plate 150. The other end of the spring 192 is fixedly mounted on the arc-shaped plate 193. A pin rod 191 is fixedly mounted on the arc-shaped plate 193. The pin rod 191 penetrates the vertical rod 190. A plurality of vertical rods 190 are provided, and the plurality of vertical rods 190 are axially equidistantly arranged on the clamping plate. 170, the arrangement of multiple vertical rods 190 makes the clamping plate 170 more firmly fixed on the base 140 or the arc-shaped clamping plate 150, a first through hole 194 is opened on the vertical rod 190, and the pin rod 191 passes through the first through hole 194. The arrangement of the first through hole 194 facilitates the pin rod 191 to pass through the vertical rod 190, a second through hole 195 is opened on the base 140, one end of the spring 192 is fixed in the second through hole 195, and the arrangement of the second through hole 195 facilitates the operation of the arc-shaped plate 193, and also includes an electric control cabinet 180, and the first hydraulic cylinder 113, the heating plate 120, the motor 135 and the second hydraulic cylinder 160 are all connected to the electric control cabinet 180 with electric wires.

[0029] Specifically, the working principle of the clamping structure for hot-melt butt joint of PVC pipes is as follows: when in use, according to the model of the PVC pipe, a corresponding model of the clamping plate 170 is selected, and the arc plate 193 is pushed, that is, the spring 192 is compressed, so that the pin rod 191 leaves the vertical rod 190, and then the clamping plate 170 can be removed, and then the vertical rods 190 on the two corresponding models of the clamping plates 170 are passed through the base 140 and the arc clamping plate 150 in turn, and the arc plate 193 is loosened, so that the pin rod 191 passes through the vertical rod 190, that is, the installation and fixation of the clamping plate 170 is realized, and the first hydraulic cylinder 113 is operated to move the cross bar 112 downward, that is, to move the heating plate 120 downward, so that the heating plate 120 is located between the two bases 140, and then the PVC pipe is manually inserted into the base 140, and the end of the PVC pipe is attached to the heating plate 120, and the second hydraulic cylinder 160 is operated to clamp the arc clamping plate 150 on the base 140, Now the two clamps 170 clamp and fix the PVC pipes, the heating plate 120 works to melt the ends of the two PVC pipes, after a certain period of time, the motor 135 works, and the rotation of the output shaft of the motor 135 makes the ends of the two PVC pipes leave the outer wall of the heating plate 120, then the first hydraulic cylinder 113 works, and the extension of the piston rod of the first hydraulic cylinder 113 makes the heating plate 120 move up, so that the heating plate 120 will not hinder the friction between the two PVC pipes, and then the output shaft of the motor 135 is reversed to make the ends of the two PVC pipes frictionally docked together, after a certain period of time, the second hydraulic cylinder 160 works to separate the arc clamping plate 150 from the base 140, and finally the docked PVC pipe can be removed, and the clamping structure for hot-melt docking of PVC pipes is convenient for rapid replacement of the clamping plate 170, saves time and effort, improves the replacement efficiency of the clamping plate 170, and brings better use experience to users.

[0030] It should be noted that the specific models and specifications of the first hydraulic cylinder 113, the heating plate 120, the motor 135, the second hydraulic cylinder 160 and the electric control cabinet 180 need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0031] The power supply and principle of the first hydraulic cylinder 113, the heating plate 120, the motor 135, the second hydraulic cylinder 160 and the electric control cabinet 180 are clear to those skilled in the art and will not be described in detail herein.

[0032] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A clamping structure for hot-melt butt joint of PVC pipes, characterized in that: The invention comprises a heating plate (120), a base (140), an arc-shaped clamping plate (150), a second hydraulic cylinder (160), a clamping plate (170), a lifting mechanism (110) and a longitudinal movement mechanism (130); the heating plate (120) is mounted on the lifting mechanism (110); the lifting mechanism (110) is arranged to achieve the up and down movement of the heating plate (120); the base (140) is mounted on the longitudinal movement mechanism (130); the longitudinal movement mechanism (130) is arranged to achieve the movement of the two bases (140) towards or in opposite directions; one end of the arc-shaped clamping plate (150) is hinged on the base (140); One end of the second hydraulic cylinder (160) is rotatably mounted on the base (140), and the end of the piston rod of the second hydraulic cylinder (160) is rotatably mounted on the arc-shaped clamping plate (150). Two clamping plates (170) are provided, and a vertical rod (190) is fixedly mounted on the outer wall of the clamping plate (170). Different vertical rods (190) respectively penetrate the base (140) and the arc-shaped clamping plate (150). Springs (192) are fixedly mounted on the base (140) and the arc-shaped clamping plate (150). The other end of the spring (192) is fixedly mounted on the arc-shaped plate (193). A pin rod (191) is fixedly mounted on the arc-shaped plate (193), and the pin rod (191) penetrates the vertical rod (190).

2. A clamping structure for hot-melt butt welding of PVC pipes according to claim 1, characterized in that: A plurality of the vertical rods (190) are provided, and the plurality of vertical rods (190) are axially equidistantly arranged on the clamping plate (170).

3. A clamping structure for hot-melt butt welding of PVC pipes according to claim 1, characterized in that: The vertical rod (190) is provided with a first through hole (194), and the pin rod (191) passes through the first through hole (194).

4. A clamping structure for hot-melt butt welding of PVC pipes according to claim 1, characterized in that: The base (140) is provided with a second through hole (195), and one end of the spring (192) is fixed in the second through hole (195).

5. A clamping structure for hot-melt butt welding of PVC pipes according to claim 1, characterized in that: The lifting mechanism (110) comprises a column (111), a crossbar (112), a first hydraulic cylinder (113) and a chain (114); one end of the crossbar (112) and an end of the first hydraulic cylinder (113) are both rotatably disposed on the column (111); The piston rod end of the first hydraulic cylinder (113) is rotatably disposed on the cross bar (112), one end of the chain (114) is mounted on the cross bar (112), and the other end of the chain (114) is mounted on the heating plate (120).

6. A clamping structure for hot-melt butt joint of PVC pipes according to claim 5, characterized in that: The longitudinal movement mechanism (130) comprises a base plate (131), a bidirectional screw rod (132), a guide rod (133), a support block (134) and a motor (135); one end of the bidirectional screw rod (132) is rotatably arranged in the base plate (131); the guide rod (133) is fixed in the base plate (131); and the motor (135) is fixed on the outer wall of the base plate (131); The other end of the bidirectional screw (132) is fixed to the output shaft of the motor (135), the support block (134) is threadedly sleeved on the bidirectional screw (132), the support block (134) is also slidably sleeved on the guide rod (133), and the base (140) is fixed on the upper surface of the support block (134).

7. A clamping structure for hot-melt butt welding of PVC pipes according to claim 6, characterized in that: It also includes an electric control cabinet (180), and the first hydraulic cylinder (113), the heating plate (120), the motor (135) and the second hydraulic cylinder (160) are all connected to the electric control cabinet (180) by electric wires.

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