Heating and ventilation pipeline hot melting butt joint auxiliary device

Abstract

Provided is a heating and ventilation pipeline hot melting butt joint auxiliary device. In the prior art, as the plugging operation is carried out by a constructor in a handheld manner, the condition that the plugging is inclined often occurs, so that the condition that the hot melting end is poor in hot melting and water leakage is easy to occur is caused. The pipe clamping device comprises a sliding frame (2) and two pipe clamping devices (1), the two pipe clamping devices are in sliding fit with the sliding frame, each pipe clamping device comprises a sliding sleeve (3), a fixing pipe (4) is fixed to the bottom of each sliding sleeve, and each fixing pipe is fixed to a supporting rod (5) on a pipe clamp (6) through a bolt. The device is used for assisting in hot melting butt joint of the heating and ventilation pipelines.

Description

Technical Field

[0001] The utility model relates to an auxiliary device for hot-melt butt joint of heating and ventilation pipes. Background Technique

[0002] Heating and ventilation pipes are pipes for household heating. When installing heating and ventilation pipes, it is often necessary to lengthen and butt joint or butt joint the pipe with an elbow. The butt joint is to heat the butt joint ends of the two pipes through a hot-melt pipe machine until they are hot-melted, and then insert the two pipes to achieve connection. Since the insertion operation is manually held by the construction personnel, the situation of skew insertion often occurs, which will cause poor hot-melting at the hot-melt end and is prone to water leakage. Content of the Utility Model

[0003] The purpose of the utility model is to make up for the deficiencies of the prior art and provide an auxiliary device for hot-melt butt joint of heating and ventilation pipes.

[0004] The above purpose is achieved through the following technical solutions:

[0005] An auxiliary device for hot-melt butt joint of heating and ventilation pipes, which comprises a sliding frame and two pipe clamps. The two pipe clamps are slidably matched with the sliding frame. The pipe clamp comprises a sliding sleeve, and a fixed pipe is fixed at the bottom of the sliding sleeve. The fixed pipe and the support rod on the pipe clip are fixed by bolts.

[0006] For the auxiliary device for hot-melt butt joint of heating and ventilation pipes, the pipe clip comprises two semi-circular clips. One ends of the two semi-circular clips are hinged. A screw rod is fixed at the other end of the semi-circular clip located at the lower side. The screw rod passes through the notch of the semi-circular clip located at the upper side and is threadedly connected with a wing nut.

[0007] For the auxiliary device for hot-melt butt joint of heating and ventilation pipes, a groove is formed in the inner wall of each semi-circular clip, an arc-shaped iron sheet is fixed in the groove, a magnet is fixed on the diameter-changing plate, and the magnet is attracted to the arc-shaped iron sheet. Advantageous Effects

[0008] 1. The two pipe clamps of the utility model respectively clamp the ends of the two pipes that need to be hot-melt butt jointed. During hot-melting, the two pipe clamps can slide on a straight line, so that skew hot-melting can be prevented during hot-melt butt joint, and the quality of hot-melting can be guaranteed.

[0009] 2. The utility model has a simple structure and is convenient to carry, and can ensure the smooth operation during hot-melting of the pipes by the hot-melt pipe machine. Description of the Drawings

[0010] Attached Figure 1 is the front view of the utility model;

[0011] AttachedFigure 2 is a cross-sectional view of the present utility model;

[0012] Appendix Figure 3 is Appendix Figure 1 a sectional view taken along the line A-A of Appendix;

[0013] Appendix Figure 4 is Appendix Figure 2 an enlarged view of part B of Appendix;

[0014] Appendix Figure 5 is Appendix Figure 2 an enlarged view of part C of Appendix;

[0015] Appendix Figure 6 is a schematic structural view of a diameter-changing plate;

[0016] Appendix Figure 7 is a schematic structural view when the present utility model is in use;

[0017] In the figure: 1, pipe clamp; 2, carriage; 3, sliding sleeve; 4, fixed pipe; 5, support rod; 6, pipe clip; 7, semi-circular clip; 8, screw; 9, wing nut; 10, diameter-changing plate; 11, arc-shaped iron sheet; 12, magnet; 13, groove; 14, hot melt pipe machine; 15, notch. Specific Embodiment

[0018] Referring to Figures 1 - 6 , a hot melt butt joint auxiliary device for HVAC pipes, which comprises a carriage 2 and two pipe clamps 1, and the two pipe clamps are slidably engaged with the carriage;

[0019] During hot melt operation, first clamp the ends of the two pipes to be butt-jointed with each pipe clamp. After clamping, hold the two pipes with both hands respectively, then insert the ends of the pipes into the hot melt head of the hot melt pipe machine for hot melting. After hot melting, pull out the two pipes, and then butt-joint the two pipes to achieve hot melt connection. With this device, the two pipe clamps can be kept in a straight line when sliding, preventing the two pipes from being skewed during hot melt butt joint and ensuring the quality of hot melt connection.

[0020] The pipe clamp includes a sliding sleeve 3, a fixed pipe 4 is fixed at the bottom of the sliding sleeve, and the fixed pipe is fixed to the support rod 5 on the pipe clip 6 by bolts.

[0021] The pipe clip includes two semi-circular clips 7, one ends of the two semi-circular clips are hinged, a screw 8 is fixed at the other end of the semi-circular clip located at the lower side, and the screw passes through the notch 15 of the semi-circular clip located at the upper side and is threadedly connected with a wing nut 9.

[0022] A groove 13 is provided on the inner wall of each of the semi-circular clips, and an arc-shaped iron sheet 11 is fixed in the groove. A magnet 12 is fixed on the diameter-changing plate, and the magnet is attracted to the arc-shaped iron sheet.

[0023] The diameter of the HVAC duct is usually φ32, and its inner diameter is φ26. Thus, the thickness of its diameter-changing plate is 3 mm. For the hot-melt butt joint of two ducts, the duct with an outer diameter of φ26 needs to be inserted into the duct with an inner diameter of φ26 for hot-melt butt joint. Therefore, a diameter-changing plate needs to be installed in one of the pipe clamps, and no diameter-changing plate is installed in the other pipe clamp. The magnet of the diameter-changing plate is attracted to the arc-shaped iron sheet in the groove of the semi-circular clip to fix the diameter-changing plate. When hot melting is required, loosen the wing nut, then insert the end of the duct with an outer diameter of φ32 into the pipe clamp without a diameter-changing plate, then tighten the wing nut, insert the duct with an outer diameter of φ26 into the pipe clamp with a diameter-changing plate, then tighten the wing nut, and then hold the two ducts with both hands respectively, insert the ends of the two ducts into the hot-melt heads of the hot-melt pipe machine 14 respectively. After hot melting, pull out the two ducts, and then butt the two ducts to achieve hot-melt connection. With this device, the two pipe clamps can be kept in a straight line when sliding, preventing the two ducts from skewing during hot-melt butt joint, and ensuring the quality of hot-melt connection.

Claims

1. A hot melt butt joint auxiliary device for heating and ventilation pipelines, characterized in that: It consists of a carriage and two pipe clamps. The two pipe clamps are slidably engaged with the carriage. The pipe clamp includes a sliding sleeve, and a fixed pipe is fixed to the bottom of the sliding sleeve. The fixed pipe is fixed to the support rod on the pipe clip by bolts.

2. The hot-melt butt joint auxiliary device for HVAC pipelines according to claim 1, characterized in that: The pipe clip includes two semi-circular clips. One end of the two semi-circular clips is hinged. A screw rod is fixed to the other end of the semi-circular clip located on the lower side. The screw rod passes through the notch of the semi-circular clip located on the upper side and is threadedly connected to a wing nut.

3. The hot melt butt joint auxiliary device for heating and ventilation pipelines according to claim 2, characterized in that: A groove is formed in the inner wall of each semi-circular clip, and an arc-shaped iron sheet is fixed in the groove. A magnet is fixed on the diameter-changing plate, and the magnet is attracted to the arc-shaped iron sheet.

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