Stainless steel pipe with heat insulation function

Abstract

The utility model discloses a stainless steel pipe with a heat insulation function, which belongs to the technical field of stainless steel pipes and comprises a stainless steel pipe body, a heat insulation sleeve is sleeved at the outer end of the stainless steel pipe body, and a buffer sleeve is sleeved at the outer end of the heat insulation sleeve. Two flexible sealing sleeves are fixedly connected between the buffering sleeve and the heat insulation sleeve, a plurality of evenly-distributed movable hemispheres are fixedly connected to the inner wall of the buffering sleeve, a plurality of evenly-distributed fixed hemispheres are fixedly connected to the outer end of the heat insulation sleeve, a fixed frame is fixedly connected to the outer ends of the fixed hemispheres, and a round rod is fixedly connected between the inner walls of the fixed frame. According to the scheme, when the heat insulation sleeve is subjected to external stamping, the protection of the buffer sleeve is matched with the elastic displacement of the movable rods, the inclined rods and the spring sleeve pieces, external stamping is buffered, impact force is relieved, the heat insulation sleeve is not prone to damage, the heat insulation function of the heat insulation sleeve is guaranteed, and the heat insulation effect of the stainless steel pipe body is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, and more specifically to a stainless steel pipe with a heat insulation function. Background Art

[0002] Stainless steel pipe is a hollow long cylindrical steel. It is used as a pipeline for conveying fluids. It is mainly used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instruments, and mechanical structural components.

[0003] China Patent Authorization Announcement No.: CN204328257U, provides an insulated steel pipe. This patent uses a polyurethane insulation layer to achieve good thermal insulation, and is particularly suitable for long-distance transportation of heated heavy viscous crude oil, fuel oil or natural gas in a low-temperature environment; the protective layer and waterproof device can seal and protect the steel pipe to prevent corrosion to the steel pipe by water, moisture and other corrosive liquids and gases; due to the presence of the vacuum insulation layer, the heat conduction and thermal radiation rate are reduced, and the thermal insulation effect is enhanced.

[0004] Although the above patent has the thermal insulation performance and corresponding protective effect of the stainless steel pipe, when the polyurethane insulation layer is subjected to external stamping, simply relying on the protective layer cannot effectively block and buffer the external stamping effect, causing the polyurethane insulation layer to be easily damaged, thereby affecting its thermal insulation function and reducing the thermal insulation effect of the stainless steel pipe. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a stainless steel pipe with a heat-insulating function. This solution realizes that when the heat-insulating sleeve is subjected to external stamping, the external stamping is buffered by the protection of the buffer sleeve and the elastic displacement of the movable rod, the inclined rod and the spring sleeve, so as to reduce the impact force, make the heat-insulating sleeve less likely to be damaged, ensure its heat-insulating function, and enhance the heat-insulating effect of the stainless steel pipe body.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A stainless steel pipe with a heat-insulating function comprises a stainless steel pipe body, wherein the outer end of the stainless steel pipe body is sleeved with a heat-insulating sleeve, the outer end of the heat-insulating sleeve is sleeved with a buffer sleeve, and two flexible sealing sleeves are fixedly connected between the buffer sleeve and the heat-insulating sleeve, the inner wall of the buffer sleeve is fixedly connected with a plurality of evenly distributed movable hemispheres, and the outer end of the heat-insulating sleeve is fixedly connected with a plurality of evenly distributed fixed hemispheres, the outer ends of the fixed hemispheres are fixedly connected with a fixed frame, and round rods are fixedly connected between the inner walls of the fixed frames, the outer ends of the round rods are sleeved with a spring sleeve, and the spring sleeve is fixedly connected to the outer ends of the fixed hemispheres, and the spring sleeve is fixedly connected to the outer ends of the fixed hemispheres, and the spring sleeve is fixedly connected to the outer ends of the fixed hemispheres. The outer end is fixedly connected with two inclined rods, the outer end of the fixed hemisphere is fixedly connected with two movable rods, and two through holes are drilled on the upper end of the fixed frame, the movable rod passes through the through holes, and is rotatably connected with the inclined rods through rectangular blocks, and the ends of the two inclined rods that are away from each other are rotatably connected with connecting rods through rectangular blocks, and the two connecting rods are slidably connected with the fixed hemisphere. This solution realizes that when the insulation sleeve is subjected to external stamping, the external stamping is buffered by the protection of the buffer sleeve and the elastic displacement of the movable rod, the inclined rod and the spring sleeve, so as to reduce the impact force, make the insulation sleeve less likely to be damaged, ensure its thermal insulation function, and enhance the thermal insulation effect of the stainless steel pipe body.

[0010] Furthermore, the outer end of the buffer sleeve is fixedly connected with a plurality of evenly distributed wear-resistant strips, and the length of the wear-resistant strips matches the length of the buffer sleeve. Through the arrangement of the wear-resistant strips, the contact friction on the surface of the buffer sleeve is reduced, making its surface less susceptible to wear and extending its service life.

[0011] Furthermore, two symmetrical spherical grooves are bored on the inner walls of the two through holes, and balls are rotatably connected to the inside of the two spherical grooves. The outer ends of the two balls are in contact with the outer end of the movable rod. Through the arrangement of the balls, the movement of the movable rod is smoother and more convenient, and the influence of friction is reduced.

[0012] Furthermore, two symmetrical dovetail grooves are bored at the outer end of the fixed hemisphere, a slider is provided inside the dovetail groove, and the slider is slidably connected to the dovetail groove, and the connecting rod is rotatably connected to the slider via a rectangular block. Through the setting of the slider and the dovetail groove, a sliding connection is achieved during the movement of the oblique rod and the connecting rod, so that they maintain stable movement.

[0013] Furthermore, the two flexible sealing sleeves are both made of elastic polymer material, and the surfaces of the two flexible sealing sleeves are provided with a high-strength wear-resistant layer. The outer ends of the flexible sealing sleeves are arranged in an annular shape. By using the flexible sealing sleeves made of elastic polymer material, the flexible sealing sleeves have good elastic properties. When the buffer sleeve is deformed by stamping, it will deform accordingly, thereby enhancing the buffering effect. The arrangement of the high-strength wear-resistant layer makes the surface of the flexible sealing sleeve less susceptible to damage, thereby extending its service life.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) This solution achieves that when the insulation sleeve is subjected to external pressure, the external pressure is buffered by the protection of the buffer sleeve and the elastic displacement of the movable rod, the inclined rod and the spring sleeve, thereby reducing the impact force and making the insulation sleeve less likely to be damaged, thereby ensuring its insulation function and enhancing the insulation effect of the stainless steel pipe body.

[0017] (2) The outer end of the buffer sleeve is fixedly connected with a plurality of evenly distributed wear-resistant strips, and the length of the wear-resistant strips matches the length of the buffer sleeve. Through the arrangement of the wear-resistant strips, the contact friction on the surface of the buffer sleeve is reduced, making its surface less susceptible to wear and extending its service life.

[0018] (3) Two symmetrical spherical grooves are bored on the inner walls of the two through holes, and balls are rotatably connected inside the two spherical grooves. The outer ends of the two balls are in contact with the outer end of the movable rod. The arrangement of the balls makes the movement of the movable rod smoother and more convenient, reducing the influence of friction.

[0019] (4) Two symmetrical dovetail grooves are cut at the outer end of the fixed hemisphere. A slider is provided inside the dovetail groove, and the slider is slidably connected to the dovetail groove. The connecting rod is rotatably connected to the slider through a rectangular block. Through the setting of the slider and the dovetail groove, a sliding connection is achieved during the movement of the inclined rod and the connecting rod, so that they maintain stable movement.

[0020] (5) Both flexible sealing sleeves are made of elastic polymer material, and the surfaces of the two flexible sealing sleeves are provided with a high-strength wear-resistant layer. The outer ends of the flexible sealing sleeves are arranged in a ring shape. By using the flexible sealing sleeves made of elastic polymer material, the flexible sealing sleeves have good elastic properties. When the buffer sleeve is deformed by stamping, the flexible sealing sleeves will deform accordingly, thereby enhancing the buffering effect. In addition, the arrangement of the high-strength wear-resistant layer makes the surface of the flexible sealing sleeves less susceptible to damage, thereby extending their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a partial side cross-sectional structural schematic diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the connection structure between the fixed hemisphere and the movable hemisphere in the utility model;

[0024] Figure 4 for Figure 3 Schematic diagram of the structure enlarged at point A in the middle.

[0025] Description of the numbers in the figure:

[0026] 1. Stainless steel pipe body; 2. Insulation sleeve; 3. Flexible sealing sleeve; 4. Buffer sleeve; 5. Movable hemisphere; 6. Fixed hemisphere; 7. Fixed frame; 8. Movable rod; 801. Ball; 9. Round rod; 10. Spring sleeve; 11. Oblique rod; 12. Connecting rod; 1201. Slider; 1202. Slider; 13. Wear-resistant strip. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Example:

[0031] See also Figure 1-4A stainless steel pipe with heat insulation function comprises a stainless steel pipe body 1, the outer end of the stainless steel pipe body 1 is sleeved with a heat insulation sleeve 2, the outer end of the heat insulation sleeve 2 is sleeved with a buffer sleeve 4, and two flexible sealing sleeves 3 are fixedly connected between the buffer sleeve 4 and the heat insulation sleeve 2, the inner wall of the buffer sleeve 4 is fixedly connected with a plurality of evenly distributed movable hemispheres 5, and the outer end of the heat insulation sleeve 2 is fixedly connected with a plurality of evenly distributed fixed hemispheres 6, the outer ends of the fixed hemispheres 6 are fixedly connected with a fixed frame 7, and a round rod 9 is fixedly connected between the inner walls of the fixed frame 7, the outer end of the round rod 9 is sleeved with a spring sleeve 10, and the spring sleeve 10 is fixedly connected to the outer end of the fixed hemisphere 6, and the outer end of the spring sleeve 10 is fixedly connected to the outer end of the fixed hemisphere There are two inclined rods 11 fixedly connected, and the outer end of the fixed hemisphere 6 is fixedly connected to two movable rods 8, and two through holes are drilled at the upper end of the fixed frame 7. The movable rod 8 passes through the through holes and is rotatably connected to the inclined rod 11 through a rectangular block. The ends of the two inclined rods 11 that are away from each other are rotatably connected to a connecting rod 12 through a rectangular block, and the two connecting rods 12 are slidably connected to the fixed hemisphere 6. This solution realizes that when the insulation sleeve 2 is subjected to external stamping, the external stamping is buffered by the protection of the buffer sleeve 4 and the elastic displacement of the movable rod 8, the inclined rod 11 and the spring sleeve 10, so as to reduce the impact force, make the insulation sleeve 2 not easily damaged, ensure its insulation function, and enhance the insulation effect of the stainless steel pipe body 1.

[0032] See also Figure 1 The outer end of the buffer sleeve 4 is fixedly connected with a plurality of evenly distributed wear-resistant strips 13, and the length of the wear-resistant strips 13 matches the length of the buffer sleeve 4. Through the arrangement of the wear-resistant strips 13, the contact friction on the surface of the buffer sleeve 4 is reduced, making its surface less susceptible to wear and extending its service life.

[0033] See also Figure 4 Two symmetrical spherical grooves are drilled on the inner walls of the two through holes, and the insides of the two spherical grooves are rotatably connected with balls 801. The outer ends of the two balls 801 are in contact with the outer ends of the movable rod 8. Through the setting of the balls 801, the movement of the movable rod 8 is smoother and more convenient, reducing the influence of friction.

[0034] See also Figure 3 Two symmetrical dovetail grooves 1202 are cut on the outer end of the fixed hemisphere 6, a slider 1201 is provided inside the dovetail groove 1202, and the slider 1201 is slidably connected to the dovetail groove 1202, and the connecting rod 12 is rotatably connected to the slider 1201 through a rectangular block. Through the setting of the slider 1201 and the dovetail groove 1202, a sliding connection is achieved during the movement of the oblique rod 11 and the connecting rod 12, so that they maintain stable movement.

[0035] See also Figure 1The two flexible sealing sleeves 3 are both made of elastic polymer material, and the surfaces of the two flexible sealing sleeves 3 are provided with high-strength wear-resistant layers. The outer ends of the flexible sealing sleeves 3 are arranged in an annular shape. By using the flexible sealing sleeves 3 made of elastic polymer material, the flexible sealing sleeves 3 have good elastic properties. When the buffer sleeve 4 is deformed by stamping, it will deform accordingly to enhance the buffering effect. The setting of the high-strength wear-resistant layer makes the surface of the flexible sealing sleeve 3 not easily damaged, thereby extending its service life.

[0036] In the utility model, when subjected to external stamping, it first acts on the buffer sleeve 4, squeezing the buffer sleeve 4 to be concave inward, driving the corresponding movable hemisphere 5 to push the two movable rods 8 to move toward the fixed frame 7 with the assistance of the ball 801, squeezing the two inclined rods 11 to expand to both sides with the assistance of the spring sleeve 10, and pushing the two connecting rods 12 to move stably with the assistance of the sliding of the slider 1201 and the dovetail groove 1202, so that the movable rod 8 and the inclined rod 11 maintain stable movement, thereby achieving the deformation protection of the buffer sleeve 4 and the elastic displacement of the movable rod 8, the inclined rod 11 and the spring sleeve 10, so as to buffer the external stamping, reduce the impact force, make the insulation sleeve 2 not easily damaged, ensure its insulation function, and enhance the insulation effect of the stainless steel pipe body 1.

[0037] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A stainless steel pipe with heat insulation function, comprising a stainless steel pipe body (1), characterized in that: The outer end of the stainless steel pipe body (1) is sleeved with a heat insulation sleeve (2), the outer end of the heat insulation sleeve (2) is sleeved with a buffer sleeve (4), and two flexible sealing sleeves (3) are fixedly connected between the buffer sleeve (4) and the heat insulation sleeve (2), the inner wall of the buffer sleeve (4) is fixedly connected with a plurality of evenly distributed movable hemispheres (5), and the outer end of the heat insulation sleeve (2) is fixedly connected with a plurality of evenly distributed fixed hemispheres (6), the outer end of the fixed hemisphere (6) is fixedly connected with a fixed frame (7), and a round rod (9) is fixedly connected between the inner walls of the fixed frame (7), and the outer end of the round rod (9) is fixedly connected with the inner wall of the fixed frame (7). A spring sleeve (10) is sleeved, and the spring sleeve (10) is fixedly connected to the outer end of the fixed hemisphere (6), the outer end of the spring sleeve (10) is fixedly connected to two inclined rods (11), the outer end of the fixed hemisphere (6) is fixedly connected to two movable rods (8), and the upper end of the fixed frame (7) is drilled with two through holes, the movable rods (8) pass through the through holes and are rotatably connected to the inclined rods (11) through rectangular blocks, the ends of the two inclined rods (11) that are far away from each other are rotatably connected to connecting rods (12) through rectangular blocks, and the two connecting rods (12) are slidably connected to the fixed hemisphere (6).

2. The stainless steel pipe with heat insulation function according to claim 1, characterized in that: The outer end of the buffer sleeve (4) is fixedly connected to a plurality of evenly distributed wear-resistant strips (13), and the length of the wear-resistant strips (13) matches the length of the buffer sleeve (4).

3. The stainless steel pipe with heat insulation function according to claim 1, characterized in that: Two symmetrical spherical grooves are bored on the inner walls of the two through holes, and balls (801) are rotatably connected inside the two spherical grooves, and the outer ends of the two balls (801) are in contact with the outer end of the movable rod (8).

4. The stainless steel pipe with heat insulation function according to claim 1, characterized in that: The outer end of the fixed hemisphere (6) is provided with two symmetrical dovetail grooves (1202), a slider (1201) is provided inside the dovetail groove (1202), and the slider (1201) is slidably connected to the dovetail groove (1202), and the connecting rod (12) is rotatably connected to the slider (1201) via a rectangular block.

5. The stainless steel pipe with heat insulation function according to claim 1, characterized in that: The two flexible sealing sleeves (3) are both made of elastic polymer material, and the surfaces of the two flexible sealing sleeves (3) are provided with a high-strength wear-resistant layer, and the outer ends of the flexible sealing sleeves (3) are arranged in an annular shape.

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