Heat supply pipeline with external anti-freezing protection structure

Abstract

The utility model relates to the technical field of pipelines, in particular to a heat supply pipeline with an external anti-freezing protection structure, which comprises a main pipeline, a clamping plate is fixedly arranged in the middle of the outer side of the main pipeline, an external protection pipe is rotatably arranged in a rotating groove in the middle of the clamping plate, and a connecting strip is fixedly arranged on the outer side of the top of the external protection pipe. Elastic plates are fixedly arranged at the ends, away from the external protection pipe, of the connecting strips and penetrate through the inner wall of the power groove in the bottom of the outer side of the middle power box, and the bottom of the middle power box is fixedly arranged in the middle of the top of the outer side of the main pipeline. By arranging the elastic plate, the fixing groove, the middle power box and other components, the elastic plate is clamped in the square groove in the side face of the fixing groove, the anti-freezing layer is tightly attached to the outer side of the pipeline, meanwhile, the elastic plate is pushed to be deformed through the triangular push plate, the elastic plate can be disengaged from clamping, and therefore the protective layer is dismantled; and the internal anti-freezing layer is convenient to replace, so that the pipeline has a better anti-freezing protection effect.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pipelines, in particular to a heat supply pipeline with an external anti-freezing protection structure. BACKGROUND

[0002] The heat supply pipeline refers to a pipeline for connecting a heat source and a heat-using device to form a heat supply system by conveying steam or hot water and other heat medium, a plurality of heat supply pipelines form a heat supply network, and the heat supply pipeline is usually composed of a working steel pipe, an insulation layer and a protective shell. The working steel pipe is the main body for conveying the heat medium, and the insulation layer is used for reducing heat loss.

[0003] Through retrieval, the Chinese patent publication No. CN 215111005 U discloses a heat supply pipeline with anti-freezing, anti-corrosion and anti-leakage functions, which comprises an outer protective layer, an outer core layer, an insulation layer and an inner core layer arranged in sequence from outside to inside. The heat supply pipeline further comprises a plurality of heat-conducting layers embedded on the surface of the insulation layer. The outer protective layer realizes the anti-corrosion and wear-resistant effects, the outer core layer plays a role in external support and protection, the insulation layer realizes the heat preservation effect on the inner core layer to prevent the burst of the heat supply pipeline in winter, and the heat-conducting layers on the surface of the insulation layer and the heat-conducting sheets in the inner core layer are connected to each other to realize the heat transfer from the hot water in the inner core layer to the heat-conducting layers and then to the outer core layer, thereby realizing the overall heat preservation effect of the heat supply pipeline and the functions of anti-freezing, anti-corrosion and anti-leakage.

[0004] According to the related technology in the above, the inventors find that the following defects exist: the anti-freezing structure on the outer side of the heat supply pipeline is not easy to replace after the internal anti-freezing layer is oxidized after a long time of use, which leads to the poor anti-freezing effect of the outer layer of the pipeline and affects the service life of the pipeline, and meanwhile, the heat transported in the pipeline is affected, resulting in the loss of heat. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the problems mentioned in the background art, the application provides a heat supply pipeline with an external anti-freezing protection structure.

[0006] The heat supply pipeline with the external anti-freezing protection structure provided by the application adopts the following technical scheme: a main pipeline is provided, a clamping plate is fixedly arranged at the middle part of the outer side of the main pipeline, an external protection pipe is rotatably arranged in a rotating groove in the middle part of the clamping plate, a connecting strip is fixedly arranged on the outer side of the top of the external protection pipe, an elastic plate is fixedly arranged at the end of the connecting strip away from the external protection pipe, the elastic plate penetrates through the inner wall of a power groove on the outer bottom of a middle power box, and the bottom of the middle power box is fixedly arranged at the middle position of the top of the outer side of the main pipeline.

[0007] The middle part of the inner wall of the middle power box is fixedly provided with an inner rod, the end of the inner rod away from the inner wall of the middle power box is slidably provided with a sleeve, the end of the sleeve away from the inner rod is fixedly arranged on one end of a moving plate, the other end of the moving plate is fixedly provided with a pull rod, and the end of the pull rod away from the moving plate penetrates the middle part of the right end of the middle power box.

[0008] Optionally, the external protection pipe is a quarter circle, and the number of the external protection pipes is four.

[0009] Optionally, the elastic plate is a "V" shape, the middle part of the outer corner of the outer end of the elastic plate is fixedly provided with a clamping strip, the clamping strip is a right trapezoid, the inclined surface of the top of the clamping strip is slidably connected with the top of the power groove in the middle part of the fixed groove, the elastic plate is four, and two elastic plates are arranged on the two sides of the middle power box.

[0010] Optionally, the two sides of the connecting strip are fixedly provided with two same oval elastic plates, and the top of the oval elastic plate is fixedly connected with the top of the inner wall of the elastic plate.

[0011] Optionally, the outer side of the inner rod is sleeved with a spring, the end of the spring is fixedly arranged on the end of the inner wall of the middle power box, and the front end of the spring is fixedly arranged on one end of the sleeve.

[0012] Optionally, the bottom of the inner wall of the middle power box is fixedly provided with a fixed groove, the middle part of the fixed groove is provided with a sliding groove, the width of the sliding groove is greater than the width of the "U" shaped moving plate, the middle parts of the two sides of the fixed groove are provided with square grooves, and the areas of the square grooves are smaller than the opening distance of the elastic plate.

[0013] Optionally, the end of the main pipeline is fixedly provided with a fixed sleeve ring, and the inner wall diameter of the fixed sleeve ring is same as the outer wall diameter of the main pipeline.

[0014] Optionally, the bottom of the moving plate is uniformly provided with four triangular push plates, and the inclined surface of one side of the triangular push plate is slidably connected with the top of one side of the elastic plate.

[0015] In summary, the present application has the following beneficial technical effects:

[0016] 1. The utility model discloses a middle power box, a fixed groove and the like are arranged, the elastic plate is clamped in the square groove on the side of the fixed groove, the anti-freezing layer is tightly attached to the outer side of the pipeline, the triangular push plate pushes the elastic plate to deform, the elastic plate can be separated from the clamping, the protective layer is removed, the internal anti-freezing layer is replaced, and the pipeline has better anti-freezing protection effect.

[0017] 2. This utility model uses an outer protective tube composed of multiple quarter circles, which makes it easy to distinguish the protective layer. If the protective layer is damaged in a certain place, it will not need to be replaced entirely, thus reducing the cost of replacing the protective layer. In addition, the structure is simple and easy to operate, and it is easy to replace the inner antifreeze layer. By setting a fixed sleeve, it is easy to connect the pipes and avoid leakage after the pipes are connected. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional cross-sectional structure of the external protective tube in an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the external protective tube in an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the elastic plate in the embodiments of this application;

[0021] Figure 4 This is a schematic diagram of the overall three-dimensional structure in the embodiments of this application;

[0022] Figure 5 This is a three-dimensional exploded structural diagram of the fixing groove in the embodiment of this application.

[0023] Reference numerals in the attached diagram: 1. Main pipe; 2. External protective pipe; 3. Central power box; 4. Fixed groove; 5. Moving plate; 6. Elastic plate; 7. Triangular push plate; 8. Sleeve; 9. Inner rod; 10. Antifreeze layer; 11. Snap-fit ​​plate; 12. Elliptical elastic plate; 13. Pull rod; 14. Fixed collar; 15. Snap-fit ​​strip; 16. Connecting strip. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0025] This application discloses a heating pipe with an external anti-freeze protection structure. For example... Figure 1 As shown, the system includes a main pipe 1, with a fixing collar 14 fixedly installed at the end of the main pipe 1. The inner diameter of the fixing collar 14 is the same as the outer diameter of the main pipe 1. The fixing collar 14 facilitates the connection of multiple pipes and makes the connection tighter. A snap-fit ​​plate 11 is fixedly installed in the middle of the outer side of the main pipe 1. An outer protective tube 2 is rotatably installed inside the rotating groove in the middle of the snap-fit ​​plate 11. The outer protective tube 2 is set as a quarter circle, and there are four outer protective tubes 2. The four outer protective tubes 2 are provided with two layers of antifreeze 10 inside. The outer protective tubes 2 are composed of four quarter circles, which facilitates the replacement of the inner antifreeze 10 and avoids complete damage during replacement, thereby reducing the cost of maintenance.

[0026] Please seeFigure 1 And Figure 2 The outer side of the top of the outer protective tube 2 is fixedly provided with a connecting strip 16, both sides of the connecting strip 16 are fixedly provided with two identical elliptical elastic plates 12, the top of the elliptical elastic plate 12 is fixedly connected with the top of the inner wall of the elastic plate 6, the elliptical elastic plate 12 supports the "V"-shaped elastic plate 6, so that the outer end of the elastic plate 6 is always in a tight state after movement, one end of the connecting strip 16 away from the outer protective tube 2 is fixedly provided with the elastic plate 6, the elastic plate 6 is arranged in a "V" shape, the "V"-shaped elastic plate 6 is better clamped with the side of the fixed groove 4, the outer end corner of the elastic plate 6 is fixedly provided with a clamping strip 15 on the middle part of the outer side of the elastic plate 6, after the "V"-shaped elastic plate 6 is inserted into the fixed groove 4, the clamping strip 15 can limit the position of the "V"-shaped elastic plate 6, so that the elastic plate 6 is more stable, the clamping strip 15 is arranged in a right trapezoidal shape, the right trapezoidal clamping strip 15 is convenient to enter and is more tightly clamped after entering, the inclined surface at the top of the clamping strip 15 is slidably connected with the top of the power groove at the middle part of the fixed groove 4, the elastic plate 6 is arranged in four, two elastic plates 6 are arranged in a group on both sides of the middle power box 3.

[0027] Please refer to Figure 1 The elastic plate 6 penetrates the inner wall of the power groove at the bottom of the outer side of the middle power box 3, the bottom of the inner wall of the middle power box 3 is fixedly provided with the fixed groove 4, the middle part of the fixed groove 4 is provided with a sliding groove, the width of the sliding groove is greater than the width of the "U"-shaped movement plate 5, the movement plate 5 is arranged in a "U" shape to avoid movement conflict with the elastic plate 6 below, the middle part of both sides of the fixed groove 4 is provided with a square groove, the area of the square groove is smaller than the opening distance of the elastic plate 6, the elastic plate 6 is clamped through the square grooves on both sides of the fixed groove 4, the bottom of the middle power box 3 is fixedly arranged at the middle position of the top of the outer side of the main pipeline 1.

[0028] Please refer to Figures 1-3 One end of the inner wall of the middle power box 3 is fixedly provided with an inner rod 9, a spring is sleeved on the outer side of the inner rod 9, the end of the spring is fixedly arranged at the end of the inner wall of the middle power box 3, the front end of the spring is fixedly arranged at one end of the sleeve pipe 8, the pull rod 13 drives the sleeve pipe 8 to slide on the surface of the inner rod 9 through the movement plate 5, the movement plate 5 is reset in time after movement through the spring, one end of the inner rod 9 away from the inner wall of the middle power box 3 is slidably provided with the sleeve pipe 8, one end of the sleeve pipe 8 away from the inner rod 9 is fixedly arranged at one end of the movement plate 5, the bottom of the movement plate 5 is uniformly provided with four triangular push plates 7, the inclined surface of one side of the triangular push plate 7 is slidably connected with the top of one side of the elastic plate 6, the triangular push plate 7 pushes the elastic plate 6 to the middle line direction under the action of the movement plate 5, so that the elastic plate 6 is separated from the clamping of the fixed groove 4, the outer protective tube 2 can be clamped away from the middle power box 3, the effect of opening the protective layer is realized, the other end of the movement plate 5 is fixedly provided with the pull rod 13, one end of the pull rod 13 away from the movement plate 5 penetrates the middle part of the right end of the middle power box 3.

[0029] The implementation principle of the heating pipeline with external anti-freezing protection structure is as follows: in use, according to the use condition of the pipeline, when the anti-freezing effect of the pipeline is poor and the internal anti-freezing layer 10 needs to be replaced, the pull rod 13 is moved to the outside of the middle power box 3, the movement plate 5 at one end is moved at the same time, the triangular push plate 7 below the movement plate 5 is moved to the elastic plate 6, the elastic plate 6 is driven by the thrust to move the clamping strip 15 to the middle, so that the fixed groove 4 is separated from the clamping effect of the clamping strip 15, the external protection pipe 2 is pulled out from the inside of the middle power box 3, the inside of the external protection pipe 2 is exposed, and the replacement of the internal anti-freezing layer 10 is facilitated; after the replacement is completed, the elastic plate 6 is inserted into the inside of the fixed groove 4, the external protection pipe 2 is closed, the pull rod 13 is reset in time by the spring after movement, the triangular push plate 7 is reset to the original position, and the elastic plate 6 can still be clamped after being inserted.

[0030] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A heating pipe with external anti-freezing protection structure, comprising a main pipe (1), characterized in that: The middle part outside the main pipeline (1) is fixedly provided with a clamping plate (11), a rotating groove in the middle part of the clamping plate (11) is internally rotatably provided with an external protection tube (2), the top outside of the external protection tube (2) is fixedly provided with a connecting strip (16), one end of the connecting strip (16) away from the external protection tube (2) is fixedly provided with an elastic plate (6), the elastic plate (6) penetrates the inner wall of the power groove in the bottom outside of the middle power box (3), and the bottom of the middle power box (3) is fixedly arranged at the middle position of the top outside of the main pipeline (1). The middle part of the inner wall of the middle power box (3) is fixedly provided with an inner rod (9), one end of the inner rod (9) away from the inner wall of the middle power box (3) is slidably provided with a sleeve (8), one end of the sleeve (8) away from the inner rod (9) is fixedly arranged at one end of a moving plate (5), the other end of the moving plate (5) is fixedly provided with a pull rod (13), and one end of the pull rod (13) away from the moving plate (5) penetrates the middle part of the right end of the middle power box (3).

2. A heating pipe with external anti-freezing protection structure according to claim 1, characterized in that: The external protection tube (2) is arranged in the shape of a quarter of a circle, the number of the external protection tubes (2) is four, and two layers of anti-freezing layers (10) are arranged in the four external protection tubes (2).

3. The heating pipe with external anti-freezing protection structure according to claim 1, characterized in that: The elastic plate (6) is arranged in the shape of a "V", the middle part outside the outer corner of the elastic plate (6) is fixedly provided with a clamping strip (15), the clamping strip (15) is arranged in the shape of a right trapezoid, the inclined surface of the top of the clamping strip (15) is slidably connected with the top of the power groove in the middle part of the fixed groove (4), the elastic plates (6) are arranged in four, and two elastic plates (6) are arranged in a group on the two sides of the middle power box (3).

4. The heating pipe with external anti-freezing protection structure according to claim 1, characterized in that: The two sides of the connecting strip (16) are fixedly provided with two same oval elastic plates (12), and the top of the oval elastic plate (12) is fixedly connected with the top of the inner wall of the elastic plate (6).

5. The heating pipe with external anti-freezing protection structure according to claim 1, characterized in that: The outer side of the inner rod (9) is sleeved with a spring, one end of the spring is fixedly arranged at the other end of the inner wall of the middle power box (3), and the other end of the spring is fixedly arranged at one end of the sleeve (8).

6. The heating pipe with external anti-freezing protection structure according to claim 1, characterized in that: The bottom of the inner wall of the middle power box (3) is fixedly provided with a fixed groove (4), the middle part of the fixed groove (4) is provided with a sliding groove, the width of the sliding groove is greater than the width of the "U"-shaped moving plate (5), the middle parts of the two sides of the fixed groove (4) are provided with square grooves, and the areas of the square grooves are smaller than the opening distance of the elastic plate (6).

7. The heating pipe with external anti-freezing protection structure according to claim 1, characterized in that: The end of the main pipeline (1) is fixedly provided with a fixed sleeve ring (14), and the inner wall diameter of the fixed sleeve ring (14) is the same as the outer wall diameter of the main pipeline (1).

8. The heating pipe with external anti-freezing protection structure according to claim 1, characterized in that: The bottom of the moving plate (5) is uniformly provided with four triangular push plates (7), and the inclined surface of one side of the triangular push plate (7) is slidably connected with the top of one side of the elastic plate (6).

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