Thickness measuring device for polyurethane layer of thermal insulation pipe

Abstract

The utility model relates to the technical field of thermal insulation pipe measurement, in particular to a thermal insulation pipe polyurethane layer thickness measuring device which comprises a rod body and a thermal insulation pipe body, the thermal insulation pipe body comprises a core pipe, a polyurethane layer and an anti-corrosion sleeve, the upper end and the lower end of the rod body are fixedly provided with a top plate and an arc-shaped bottom plate respectively, and the front face and the back face of the rod body are both provided with scale strips. A measuring mechanism is arranged on the surface of the rod body. According to the utility model, the measuring mechanism is arranged, the arc-shaped bottom plate is placed on the core pipe of the thermal insulation pipe, so that the rod body can carry out subsequent measurement work in a vertical state, and during measurement, the mounting plate is pushed to drive the measuring head to move up and down until the measuring head corresponds to a polyurethane layer; the thickness of the polyurethane layer can be measured through the position of the measuring head on the scale strip, then the clamping plate is pushed to be clamped on the surface of the rod body under the action of the spring, the measuring positions of the mounting plate and the measuring head are limited, and a person does not need to remember a measured value in a memory mode.

Description

Technical Field

[0001] The utility model relates to the technical field of heat preservation pipe measurement, in particular to a device for measuring the thickness of the polyurethane layer of a heat preservation pipe. Background Technique

[0002] The polyurethane heat preservation pipe is formed by chemical reaction foaming with high-functional polyether polyol combination material and polymethylene polyphenyl polyisocyanate as raw materials. The polyurethane heat preservation pipe has excellent characteristics such as light bulk density, high strength, heat insulation, sound insulation, flame retardant, cold resistance, corrosion resistance, water absorption resistance, and simple and fast construction. It has become an indispensable material for heat insulation, waterproof leakage prevention, sealing, etc. in industrial sectors such as construction, transportation, petroleum, chemical industry, electric power, and refrigeration.

[0003] The polyurethane heat preservation pipe consists of an inner core pipe, a polyurethane layer, and an anticorrosion casing from the inside to the outside. After the production of the polyurethane heat preservation pipe, it is necessary to measure the thickness of its polyurethane layer to ensure the qualification of the product. At present, most of the existing measurement methods for the thickness of the polyurethane layer of the heat preservation pipe are measured by a simple caliper. During the measurement process, the caliper needs to be kept vertical for measurement operations. A slight skew of the caliper will affect the accuracy of the measured data, making it difficult to operate and having poor stability. In view of this, the utility model proposes a device for measuring the thickness of the polyurethane layer of a heat preservation pipe. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for measuring the thickness of the polyurethane layer of a heat preservation pipe to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A device for measuring the thickness of the polyurethane layer of a heat preservation pipe, including a rod body and a heat preservation pipe body. The heat preservation pipe body includes an inner core pipe, a polyurethane layer, and an anticorrosion casing. The upper and lower ends of the rod body are respectively fixedly installed with a top plate and an arc-shaped bottom plate. Scale bars are arranged on the front and back surfaces of the rod body, and a measuring mechanism is arranged on the surface of the rod body;

[0006] The measuring mechanism includes a mounting plate arranged on the left surface of the rod body. Through sliding strip openings are formed on both side surfaces of the rod body. The right surface of the mounting plate is fixedly connected with a measuring head through the sliding strip opening. Two symmetrical fixing grooves are formed on the right surface of the mounting plate. Sliding openings penetrating to the inside of the fixing grooves are arranged on the front and back surfaces of the mounting plate. A pull rod is slidably connected to the inner wall of the sliding opening. One end of the pull rod located inside the fixing groove is fixedly connected with a clamping plate. A spring is sleeved on the surface of the pull rod. The two ends of the spring are respectively fixedly connected with the surface of the clamping plate and the inner wall of the fixing groove.

[0007] Preferably, guide sliders are arranged on the upper and lower surfaces of the clamping plate, and guide chutes for the guide sliders to slide are formed on the inner top wall and inner bottom wall of the fixing groove.

[0008] Preferably, anti-slip pads are embedded on the opposite surfaces of the two clamping plates.

[0009] Preferably, an installation opening is formed on the surface of the top plate. An installation rod is arranged inside the installation opening, and a limiting block and a measuring plate are respectively arranged at the upper and lower ends of the installation rod.

[0010] Preferably, limiting slide bars are arranged on the inner front wall and the inner rear wall of the installation opening, and limiting strip grooves adapted to the limiting slide bars are formed on the front and back surfaces of the installation rod.

[0011] Preferably, a threaded hole penetrating through to the inside of the installation opening is formed on the right side surface of the top plate, and a fixing bolt is threadedly connected to the inner wall of the threaded hole.

[0012] Preferably, four installation grooves arranged in a rectangular array are formed on the lower surface of the arc-shaped bottom plate, and pulleys are rotatably connected to the inner walls of the installation grooves through rotating rods.

[0013] Advantageous Effects

[0014] Compared with the prior art, the advantageous effects of the present utility model are as follows:

[0015] 1. By providing a measuring mechanism, the arc-shaped bottom plate is placed on the core pipe of the insulating pipe, so that the rod body can be in a vertical state for subsequent measurement work. During measurement, the mounting plate is pushed to drive the measuring head to move up and down until the measuring head corresponds to the polyurethane layer. Then, the thickness of the polyurethane layer can be measured by the position of the measuring head on the scale bar. Subsequently, under the action of the spring, the clamping plate is pushed to clamp on the surface of the rod body to limit the measuring position of the mounting plate and the measuring head, eliminating the need for personnel to remember the measured values by memory, which provides convenience for the users.

[0016] 2. By providing a measuring plate and pulleys, the mounting rod is pushed to drive the measuring plate to fit on the surface of the anticorrosion casing. Then, the thickness of the polyurethane layer on the surface of the insulating pipe and the whole anticorrosion casing can be measured through the scale bar. At the same time, with the help of the sliding of the pulleys, the rod body is pushed to drive the arc-shaped bottom plate to move on the surface of the core pipe. During this period, the thickness of other positions of the polyurethane layer can be measured through the fixed position of the measuring head, further improving the practicability of the measuring device. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the front view structure of the rod body of the utility model;

[0020] Figure 3 This is a schematic diagram of the top-sectional structure of the mounting plate of the utility model;

[0021] Figure 4 This is a schematic diagram of the front cross-section structure of the rod body of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the curved bottom plate of the utility model when viewed from above.

[0023] In the figure: 1. rod body; 2. insulation pipe body; 201. core tube; 202. polyurethane layer; 203. anti-corrosion casing; 3. pulley; 4. top plate; 5. arc bottom plate; 6. scale bar; 7. mounting plate; 8. measuring head; 9. pull rod; 10. clamping plate; 11. spring; 12. anti-slip pad; 13. mounting rod; 14. measuring plate; 15. limit bar groove; 16. fixing bolt. 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 in 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] According to the attached Figures 1-5 As shown, an embodiment of the utility model provides a device for measuring the thickness of a polyurethane layer of an insulation pipe, comprising a rod body 1 and an insulation pipe body 2, the insulation pipe body 2 comprising a core tube 201, a polyurethane layer 202 and an anti-corrosion sleeve 203, a top plate 4 and an arc-shaped bottom plate 5 are fixedly installed at the upper and lower ends of the rod body 1 respectively, scale bars 6 are arranged on the front and back sides of the rod body 1, and a measuring mechanism is arranged on the surface of the rod body 1.

[0026] The measuring mechanism includes a mounting plate 7 arranged on the left side surface of the rod body 1, and sliding strip openings are provided on both side surfaces of the rod body 1. The right side surface of the mounting plate 7 is fixedly connected to a measuring head 8 through the sliding strip opening. Two symmetrical fixing grooves are provided on the right side surface of the mounting plate 7. The front and back sides of the mounting plate 7 are both provided with sliding openings that penetrate into the interior of the fixing groove. A pull rod 9 is slidably connected to the inner wall of the sliding opening. One end of the pull rod 9 located in the fixing groove is fixedly connected to a splint 10. A spring 11 is sleeved on the surface of the pull rod 9, and the two ends of the spring 11 are respectively fixedly connected to the surface of the splint 10 and the inner wall of the fixing groove.

[0027] The upper surface and the lower surface of the clamping plate 10 are both provided with guide sliders, and the inner top wall and the inner bottom wall of the fixing groove are both provided with guide chutes for the guide sliders to slide. Under the assisting sliding action of the guide sliders, the spring 11 can smoothly push the clamping plate 10 to move directionally in the fixing groove, and the two moving clamping plates 10 can clamp the surface of the rod body 1 to fix and limit the mounting plate 7 and the measuring head 8.

[0028] Anti-slip pads 12 are embedded on the opposite surfaces of the two clamping plates 10. Through the arrangement of the anti-slip pads 12, the friction between the clamping plate 10 and the rod body 1 after lapping can be increased.

[0029] An installation opening is formed on the surface of the top plate 4. An installation rod 13 is arranged inside the installation opening. A limit block and a measuring plate 14 are respectively arranged at the upper and lower ends of the installation rod 13. Through the arrangement of the measuring plate 14, the overall thickness of the polyurethane layer 202 and the anticorrosion sleeve 203 on the surface of the heat preservation pipe can be measured.

[0030] Limit slide bars are arranged on the inner front wall and the inner rear wall of the installation opening. Limit strip grooves 15 adapted to the limit slide bars are formed on the front and back surfaces of the installation rod 13. Through the arrangement of the limit slide bars and the limit strip grooves 15, the installation rod 13 can smoothly slide directionally up and down inside the installation opening.

[0031] A threaded hole penetrating through to the inside of the installation opening is formed on the right side surface of the top plate 4. A fixing bolt 16 is threadedly connected to the inner wall of the threaded hole. Through the arrangement of the fixing bolt 16, the installation rod 13 can be fixed.

[0032] Four installation grooves arranged in a rectangular array are formed on the lower surface of the arc-shaped bottom plate 5. A pulley 3 is rotatably connected to the inner wall of the installation groove through a rotating rod. The height from the bottom of the pulley 3 to the upper surface of the arc-shaped bottom plate 5 is 2 cm, and the 2 cm is calculated within the scale bar 6. Through the arrangement of the pulley 3, the device can slide on the surface of the heat preservation pipe.

[0033] When the polyurethane layer thickness measuring device of the utility model is in use, place the arc-shaped bottom plate 5 on the core pipe 201 of the insulating pipe, so that the rod body 1 can be in a vertical state for subsequent measurement work. During the measurement, pull the two pull rods 9 to drive the clamping plate 10 to move in the fixed groove until the clamping plate 10 separates from the surface of the rod body 1. At this time, push the mounting plate 7 to drive the measuring head 8 to move up and down until the measuring head 8 corresponds to the polyurethane layer 202. Then, the thickness of the polyurethane layer 202 can be measured by the position of the measuring head 8 on the scale bar 6. During this period, loosen the pull rod 9, and under the action of the spring 11, push the clamping plate 10 to clamp on the surface of the rod body 1, so as to limit the measuring position of the mounting plate 7 and the measuring head 8. There is no need for personnel to remember the measured value by memory. At the same time, loosen the fixing bolt 16. Without the fixing of the fixing bolt 16, push the mounting rod 13 to drive the measuring plate 14 to fit on the surface of the anticorrosion sleeve 203. Then, the overall thickness of the polyurethane layer 202 and the anticorrosion sleeve 203 on the surface of the insulating pipe can be measured through the scale bar 6. When it is necessary to measure the thickness of other positions of the polyurethane layer 202, under the assistance of the pulley 3, push the rod body 1 to drive the arc-shaped bottom plate 5 to move on the surface of the core pipe 201. During this period, the thickness of other positions of the polyurethane layer 202 can be measured through the position of the fixed measuring head 8.

[0034] 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. The above embodiments and the descriptions in the specification are only the preferred examples of the utility model and do not limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the thickness of a polyurethane layer of an insulation pipe, comprising a rod body (1) and an insulation pipe body (2), wherein the insulation pipe body (2) comprises a core pipe (201), a polyurethane layer (202) and an anti-corrosion sleeve (203), characterized in that: The upper and lower ends of the rod body (1) are respectively fixedly mounted with a top plate (4) and an arc-shaped bottom plate (5); the front and back sides of the rod body (1) are both provided with scale bars (6); and the surface of the rod body (1) is provided with a measuring mechanism; The measuring mechanism comprises a mounting plate (7) arranged on the left side surface of the rod body (1), the two side surfaces of the rod body (1) are provided with sliding strip openings penetrating therethrough, the right side surface of the mounting plate (7) is fixedly connected to the measuring head (8) through the sliding strip opening, the right side surface of the mounting plate (7) is provided with two symmetrical fixing grooves, the front and back sides of the mounting plate (7) are both provided with sliding openings penetrating to the inside of the fixing groove, the inner wall of the sliding opening is slidably connected to a pull rod (9), one end of the pull rod (9) located inside the fixing groove is fixedly connected to a clamping plate (10), a spring (11) is sleeved on the surface of the pull rod (9), and the two ends of the spring (11) are respectively fixedly connected to the surface of the clamping plate (10) and the inner wall of the fixing groove.

2. The device for measuring the thickness of the polyurethane layer of the thermal insulation pipe according to claim 1, characterized in that: The upper surface and the lower surface of the clamping plate (10) are both provided with guide slide blocks, and the inner top wall and the inner bottom wall of the fixing groove are both provided with guide slide grooves for the guide slide blocks to slide.

3. The device for measuring the thickness of the polyurethane layer of the thermal insulation pipe according to claim 1, characterized in that: Anti-slip pads (12) are embedded on the opposite surfaces of the two clamping plates (10).

4. The device for measuring the thickness of the polyurethane layer of the thermal insulation pipe according to claim 1, characterized in that: The surface of the top plate (4) is provided with a mounting opening, a mounting rod (13) is arranged inside the mounting opening, and a limit block and a measuring plate (14) are respectively arranged at the upper and lower ends of the mounting rod (13).

5. The device for measuring the thickness of the polyurethane layer of the thermal insulation pipe according to claim 4, characterized in that: The inner front wall and the inner rear wall of the installation opening are both provided with limit slide bars, and the front and the back of the installation rod (13) are both provided with limit strip grooves (15) adapted to the limit slide bars.

6. The device for measuring the thickness of the polyurethane layer of the thermal insulation pipe according to claim 4, characterized in that: A threaded hole penetrating into the interior of the installation opening is provided on the right side surface of the top plate (4), and a fixing bolt (16) is threadedly connected to the inner wall of the threaded hole.

7. The device for measuring the thickness of the polyurethane layer of the thermal insulation pipe according to claim 1, characterized in that: The lower surface of the arc-shaped bottom plate (5) is provided with four installation grooves arranged in a rectangular array, and the inner wall of the installation groove is rotatably connected to a pulley (3) via a rotating rod.

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