Connecting clamping ring and buried pipe heat exchange device comprising same

Abstract

The utility model discloses a connecting clamping ring and a buried pipe heat exchange device comprising the same, the connecting clamping ring comprises a clamping ring body, a clamping cavity is formed in the center of the clamping ring body, at least two clamping groove structures are arranged on the edge of the clamping ring body, and the clamping groove structures protrude towards the side away from the clamping cavity. The utility model discloses a connecting clamping ring and a buried pipe heat exchange device comprising the same. The problem that an existing pipe clamp for the buried pipe heat exchange device affects the heat exchange effect is solved.

Description

Technical Field

[0001] The present application relates to the technical field of heating and ventilation, and more specifically, to a connecting clamp and an underground pipe heat exchange device including the same. Background Art

[0002] As a clean and renewable energy technology, ground source heat pump technology has been vigorously promoted and applied in recent years. Among them, the buried pipe heat exchange device is the core device in ground source heat pump technology. The quality of the buried pipe heat exchange effect directly determines the efficiency and operation effect of the ground source heat pump project. Among them, the vertical buried pipe heat exchange device is composed of vertical U-shaped pipes, horizontal dry pipes, manifolds and other components. In actual applications, the vertical U-shaped pipes are laid in the buried holes, fixed and backfilled. Because the U-shaped pipes cross in the holes and a pipe clamp is set every 2 meters to form a lateral barrier, and the pipe clamps are complex in shape and have many lateral structures, the soil will not be backfilled after the pipes are laid. Unrealistic or uneven backfilling will seriously affect the heat exchange effect.

[0003] Therefore, a connecting clamp and an underground pipe heat exchange device including the connecting clamp are needed to solve the above problems. Utility Model Content

[0004] In view of this, the purpose of the present application is to propose a connecting clamp ring and a buried pipe heat exchange device including the same, so as to solve the problem that the pipe clamps used in the existing buried pipe heat exchange device affect the heat exchange effect.

[0005] Based on the above purpose, the present application provides a connecting clamp ring, including:

[0006] A clamping ring body, wherein a clamping cavity is arranged at the center of the clamping ring body, and at least two clamping groove structures are arranged on the edge of the clamping ring body, wherein the clamping groove structures protrude toward a side away from the clamping cavity.

[0007] Optionally, the snap ring body includes a first snap ring arm and a second snap ring arm, and the opposite ends of the first snap ring arm include a first hinged portion and a first clamping portion, respectively; the opposite ends of the second snap ring arm include a second hinged portion and a second clamping portion, respectively; the first hinged portion is hingedly connected to the second hinged portion, and the first clamping portion is clamped and connected to the second clamping portion, so that the first snap ring arm and the first snap ring arm enclose the clamping cavity, and at least one of the clamping groove structures is respectively provided on the first snap ring arm and the second snap ring arm.

[0008] Optionally, at least one of the first snap ring arm and the second snap ring arm is a first arc-shaped structure, and the first arc-shaped structure protrudes toward the outside of the fixing cavity.

[0009] Optionally, the clamping slot structure is a second arc-shaped structure, and the second arc-shaped structure protrudes toward the outside of the clamping cavity.

[0010] Optionally, the curvature of the first arc-shaped structure is smaller than the curvature of the second arc-shaped structure.

[0011] Optionally, the first snap ring arm includes a plurality of first sub-arms, which are hingedly connected in sequence, and the two first sub-arms located at both ends are respectively provided with the first hinge part and the first clamping part; the second snap ring arm includes a plurality of second sub-arms, which are hingedly connected in sequence, and the two second sub-arms located at both ends are respectively provided with the second hinge part and the second clamping part.

[0012] Optionally, the first clamping ring arm and the second clamping ring arm are symmetrically arranged relative to the radial center line of the clamping cavity.

[0013] Optionally, the clamping groove structure on the first clamping ring arm and the clamping groove structure on the second clamping ring arm are symmetrically arranged relative to the radial center line of the clamping cavity.

[0014] In addition, optionally, the clamp ring body is made of polyethylene material.

[0015] The present application also provides a buried pipe heat exchange device, comprising: at least one connecting clamp as described above.

[0016] From the above, it can be seen that the connecting clamp ring provided by the present application and the underground pipe heat exchange device including the same have the following advantages compared with the prior art: the above-mentioned connecting clamp ring has a simple structure, and while ensuring that the underground pipe can be well fixed and the pipe spacing is fixed, the lateral structure of the traditional pipe clamp is omitted, reducing the lateral obstruction to the backfill soil, so that after the pipe is lowered, the backfill soil can be backfilled smoothly, avoiding the situation of unrealistic or uneven backfilling, thereby ensuring the heat exchange effect. In addition, it can also effectively reduce the material cost of the pipe clamp, improve construction efficiency, and improve construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above-mentioned features and technical advantages of the present application will become clearer and easier to understand through the following description of its embodiments in conjunction with the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of a connecting clamp ring used in a specific embodiment of the present application.

[0019] The reference numerals are:

[0020] 10. clasp body; 11. first clasp arm; 12. second clasp arm; 13. first hinged portion; 131: second hinged portion; 14. first clamping portion; 141: second clamping portion; 15. clamping groove structure; 16. clamping cavity. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. The same parts are represented by the same figure numerals. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings. The words "inside" and "outside" used refer to the direction toward or away from the geometric center of a specific component, respectively.

[0022] Figure 1 Schematic diagram of the structure of the connecting clamp ring used in the specific embodiment of the present application. Figure 1 As shown, the connecting clamp includes a clamp body 10 .

[0023] A clamping cavity 16 is disposed at the center of the clamping ring body 10 , and at least two clamping groove structures 15 are disposed on the edge of the clamping ring body 10 . The clamping groove structures 15 protrude toward a side away from the clamping cavity 16 .

[0024] The clamping cavity 16 can be used to accommodate the pipe lowering device, and the clamping slot structure 15 can be used to clamp the U-shaped pipe on the pipe lowering device. The number of clamping slot structures 15 is set accordingly according to the number of U-shaped pipes on the pipe lowering device, and the number of clamping slot structures 15 is not less than the number of U-shaped pipes. For example, when there is one U-shaped pipe on the pipe lowering device, there can be two or more clamping slot structures 15, and when there are two U-shaped pipes, there can be four or more clamping slot structures 15, and so on.

[0025] In one embodiment of the present application, four slot structures 15 are provided on the connecting clamp ring, and the four slot structures 15 are paired relative to each other, and the size of the slot structure 15 matches the diameter of the U-shaped tube. The middle area of ​​the clamp ring body 10, that is, the fixing cavity 16, is used to accommodate the tube lowering device. The four tubes (double U tubes) at the four corners of the tube lowering device are respectively inserted into the four slot structures 15 according to the tube diameter. The connecting clamp ring reduces the horizontal mechanism barrier in the middle, which is convenient for backfilling of earth after the tube is lowered. The backfilled earth is compact and evenly distributed, which is beneficial to the heat exchange of the U-shaped tube.

[0026] The above-mentioned connecting clamp ring has a simple structure. While ensuring that the buried pipe can be well fixed and the pipe spacing is fixed, the lateral structure of the traditional pipe clamp is omitted, reducing the lateral obstruction to the backfill soil, and effectively solving the problem of lateral obstruction formed by the pipe clamps that often occur in the construction of buried pipes. After the pipe is lowered, the backfill soil can be backfilled smoothly to avoid the situation of incomplete or uneven backfilling, thereby ensuring the heat exchange efficiency of the buried pipe of the ground source heat pump. In addition, it can also effectively reduce the material cost of the pipe clamps, improve construction efficiency, and improve construction quality.

[0027] Optionally, the clamp body 10 includes a first clamp arm 11 and a second clamp arm 12, and the opposite ends of the first clamp arm 11 include a first hinged portion 13 and a first clamping portion 14, respectively. The opposite ends of the second clamp arm 12 include a second hinged portion 131 and a second clamping portion 141, respectively. The first hinged portion 13 is hingedly connected to the second hinged portion 131, and the first clamping portion 14 is clamped and connected to the second clamping portion 141, so that the first clamp arm 11 and the first clamp arm 11 are enclosed to form a clamping cavity 16. Through the hinged connection between the first hinged portion 13 and the second hinged portion 131, the first clamp arm 11 and the second clamp arm 12 can rotate relative to each other around the hinged connection position, so that the clamp body 10 can be opened at a larger angle, and the lower pipe device and the U-shaped pipe are conveniently loaded into the clamping cavity 16. When the lower tube holder and the U-shaped tube are loaded into the fixing cavity 16, the first clamping ring arm 11 and the second clamping ring arm 12 rotate with each other, so that the first clamping portion 14 is engaged with the second clamping portion 141, so that the first hinged portion 13 and the second hinged portion 131 form a clamping structure to fix the U-shaped tube located in the fixing cavity 16.

[0028] In one embodiment of the present application, one of the first hinged portion 13 and the second hinged portion 131 is a fixed shaft, and the other is a shaft hole that matches the fixed shaft. The fixed shaft is rotatably connected to the shaft hole so that the first snap ring arm 11 and the second snap ring arm 12 can rotate relative to each other. One possible implementation of the first clamping portion 14 and the second clamping portion 141 is that one of the first clamping portion 14 and the second clamping portion 141 is a T-shaped protrusion structure, and the other is a groove structure used in conjunction with the T-shaped protrusion structure. The T-shaped protrusion structure can be inserted into the groove structure so that the first snap ring arm 11 and the second snap ring arm 12 form a clamping cavity 16.

[0029] In one embodiment of the present application, there may be multiple groove structures distributed at intervals along the clamp arm, and the T-shaped protrusion structure may be selectively connected to one of the groove structures so that the clamp body 10 can be suitable for U-shaped tubes of more specifications.

[0030] In one embodiment of the present application, there may be multiple groove structures and multiple T-shaped protrusion structures. Multiple T-shaped protrusion structures can be selectively connected to all groove structures or part of the groove structures in the multiple groove structures to make the structure of the clamping ring body 10 more stable.

[0031] In one embodiment of the present application, at least one slot structure 15 is respectively provided on the first snap ring arm 11 and the second snap ring arm 12. The number and position of the slot structures 15 can be set according to different requirements so as to effectively fix the U-shaped tube. According to different requirements, the number of slot structures 15 can be equivalent to the number of U-shaped tubes. For example, when fixing one U-shaped tube, the number of slot structures 15 can be two, and when fixing two U-shaped tubes, the number of slot structures 15 can be four, and so on. Of course, in order to better and more conveniently fix the U-shaped tube and facilitate the adjustment of the position of the U-shaped tube, the number of slot structures 15 set may not be less than the number of U-shaped tubes. For example, when a U-shaped tube is provided on the lower tube device, the slot structures 15 can be two or more, and when two U-shaped tubes are provided, the slot structures 15 can be four or more, and so on.

[0032] When the clamping ring body 10 clamps the U-shaped tube, the U-shaped tube will apply an outward force to the clamping ring body 10, so that the clamping ring body 10 has a tendency to expand outward. In order to enable the clamping ring body 10 to better absorb the force, optionally, at least one of the first clamping ring arm 11 and the second clamping ring arm 12 is a first arc structure, and the first arc structure protrudes to the outside of the clamping cavity 16. The clamping ring arm with an arc structure has good stability, can withstand a large force, and can better absorb the outward force, making the clamping ring body 10 more solid. At the same time, after the clamping ring arm with an arc structure is clamped and connected, the clamping ring body 10 can be made to be round as a whole, which can further reduce the lateral structure and reduce the lateral obstruction to the backfill soil, so that the backfill soil can be backfilled smoothly, solidly and evenly, thereby ensuring the heat exchange efficiency with the buried pipe of the ground source heat pump.

[0033] In order to make the diameter of the U-shaped tube more compatible with the slot structure 15 when the U-shaped tube is inserted into the slot structure 15, the slot structure 15 is optionally a second arc-shaped structure, and the second arc-shaped structure protrudes to the outside of the fixing cavity 16. The slot structure 15 with an arc structure can better fit the outer tube wall of the U-shaped tube, reduce the gap between the slot structure 15 and the U-shaped tube, make the overall structure formed by the clamping ring body 10 and the U-shaped tube more compact, and ensure that the relative position of the U-shaped tube and the clamping ring body 10 is more stable.

[0034] The curvatures of the first arc-shaped structure and the second arc-shaped structure may be set according to different requirements. Optionally, the curvature of the first arc-shaped structure is smaller than the curvature of the second arc-shaped structure.

[0035] In order to make the clamp body 10 more applicable and more convenient to use, optionally, the first clamp arm 11 includes a plurality of first sub-arms, the plurality of first sub-arms are hingedly connected in sequence, and the two first sub-arms at both ends are respectively provided with a first hinge portion 13 and a first clamping portion 14. The second clamp arm 12 includes a plurality of second sub-arms, the plurality of second sub-arms are hingedly connected in sequence, and the two second sub-arms at both ends are respectively provided with a second hinge portion 131 and a second clamping portion 141.

[0036] Through the use of multiple first sub-arms, the first clamp arm 11 can be made into a multi-section structure, similar to a chain-like flexible structure. Correspondingly, through the use of multiple second sub-arms, the second clamp arm 12 can be made into a multi-section structure, similar to a chain-like flexible structure. On the one hand, the first clamp arm 11 and the second clamp arm 12 can be folded up, so that the overall structure of the clamp body 10 becomes smaller, which is convenient for storing and carrying the clamp body 10. On the other hand, during installation, the clamp body 10 can be unfolded section by section, which is convenient for construction and installation, reduces site restrictions, and improves construction speed. At the same time, it is also more convenient for the first clamp arm 11 and the second clamp arm 12 to surround the outer circumference of the U-shaped tube and is easier to fit the U-shaped tube.

[0037] Optionally, the first clamping ring arm 11 and the second clamping ring arm 12 are symmetrically arranged relative to the radial center line of the clamping cavity 16. When the clamping ring body 10 clamps the U-shaped tube, the first clamping ring arm 11 and the second clamping ring arm 12 can symmetrically apply the force so that the force applied to the U-shaped tube is uniform. Furthermore, in order to facilitate the clamping of the U-shaped tube, the two vertical tubes of the U-shaped tube can be clamped into the first clamping ring arm 11 and the second clamping ring arm 12 respectively, and the relatively dynamic clamping ring arm can be used to correspond to the position of the relatively fixed U-shaped tube, and then through fine-tuning adjustment, the two vertical tubes of the U-shaped tube can be clamped into the clamping groove structure 15 of the first clamping ring arm 11 and the clamping groove structure 15 of the second clamping ring arm 12 respectively.

[0038] Optionally, the slot structure 15 on the first snap ring arm 11 and the slot structure 15 on the second snap ring arm 12 are symmetrically arranged relative to the radial center line of the clamping cavity 16. The two vertical tubes of the U-shaped tube can be symmetrically inserted into the slot structures 15 at corresponding positions, so that the first snap ring arm 11 and the second snap ring arm 12 can symmetrically apply force, so that the force applied to the U-shaped tube is uniform.

[0039] Optionally, the clamp body 10 is made of polyethylene material. PE (polyethylene) material has the characteristics of being odorless, non-toxic, waxy, having excellent low temperature resistance, and being easy to manufacture.

[0040] In one embodiment of the present application, the thickness of the clamp body 10 can be set according to different requirements. For example, the thickness of the clamp body 10 includes but is not limited to 5 mm.

[0041] The following further describes the process of using the connecting clamp.

[0042] Four slot structures 15 are provided on the connecting clamp ring, and the four slot structures 15 are paired with each other. The middle area of ​​the clamp ring body 10, that is, the fixing cavity 16, is used to accommodate the pipe lowering device. The four tubes (double U tubes) at the four corners of the pipe lowering device are respectively inserted into the four slot structures 15 according to the tube diameter. The connecting clamp ring reduces the horizontal mechanism barrier in the middle, which is convenient for backfilling of earth after the pipe is lowered. The backfilled earth is compact and evenly distributed, which is beneficial to the U-tube heat exchange.

[0043] The present application also provides a buried pipe heat exchange device, comprising: at least one connecting clamp as described above.

[0044] The above-mentioned buried pipe heat exchange device has a simple connecting clamp structure. While ensuring that the buried pipe can be well fixed and the pipe spacing is fixed, the lateral structure of the traditional pipe clamp is omitted, reducing the lateral obstruction to the backfill soil, so that after the pipe is lowered, the backfill soil can be backfilled smoothly, avoiding the situation of unrealistic or uneven backfilling, thereby ensuring the heat exchange effect. It can also effectively reduce the material cost of the pipe clamp, improve construction efficiency, and improve construction quality and the heat exchange efficiency of the buried pipe of the ground source heat pump.

[0045] From the above description and practice, it can be known that the connection clamp ring provided by the present application and the underground pipe heat exchange device including the same have the following advantages compared with the prior art: the above connection clamp ring has a simple structure, and while ensuring that the underground pipe can be well fixed and the pipe spacing is fixed, the lateral structure of the traditional pipe clamp is omitted, reducing the lateral obstruction to the backfill soil, so that after the pipe is lowered, the backfill soil can be backfilled smoothly, avoiding the situation of unrealistic or uneven backfilling, thereby ensuring the heat exchange effect. In addition, it can also effectively reduce the material cost of the pipe clamp, improve construction efficiency, and improve construction quality.

[0046] A person skilled in the art should understand that the above description is only a specific embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present application should be included in the protection scope of the present application.

Claims

1. A connecting clip, It is characterized in that include: A clamping ring body, wherein a clamping cavity is arranged at the center of the clamping ring body, and at least two clamping groove structures are arranged on the edge of the clamping ring body, wherein the clamping groove structures protrude toward a side away from the clamping cavity.

2. The connecting clip according to claim 1, Features: The snap ring body includes a first snap ring arm and a second snap ring arm, and the opposite ends of the first snap ring arm include a first hinged portion and a first clamping portion respectively; the opposite ends of the second snap ring arm include a second hinged portion and a second clamping portion respectively; the first hinged portion and the second hinged portion are hingedly connected, and the first clamping portion and the second clamping portion are clamped together to make the first snap ring arm and the first snap ring arm enclose the clamping cavity, and at least one of the clamping groove structures is respectively provided on the first snap ring arm and the second snap ring arm.

3. The connecting clip according to claim 2, Features: At least one of the first clamping ring arm and the second clamping ring arm is a first arc-shaped structure, and the first arc-shaped structure protrudes toward the outside of the clamping cavity.

4. The connecting clip according to claim 3, Features: The clamping groove structure is a second arc-shaped structure, and the second arc-shaped structure protrudes toward the outside of the clamping cavity.

5. The connecting clip according to claim 4, Features: The curvature of the first arc-shaped structure is smaller than the curvature of the second arc-shaped structure.

6. The connecting clip according to any one of claims 2 to 5, Features: The first snap ring arm includes a plurality of first sub-arms, which are hingedly connected in sequence, and the two first sub-arms located at both ends are respectively provided with the first hinged portion and the first clamping portion; the second snap ring arm includes a plurality of second sub-arms, which are hingedly connected in sequence, and the two second sub-arms located at both ends are respectively provided with the second hinged portion and the second clamping portion.

7. The connecting clip according to any one of claims 2 to 5, Features: The first clamping ring arm and the second clamping ring arm are symmetrically arranged relative to the radial center line of the clamping cavity.

8. The connecting clip according to any one of claims 2 to 5, Features: The clamping groove structure on the first clamping ring arm and the clamping groove structure on the second clamping ring arm are symmetrically arranged relative to the radial center line of the clamping cavity.

9. The connecting clip according to any one of claims 1 to 5, Features: The clamp ring body is made of polyethylene material.

10. A buried pipe heat exchange device, It is characterized in that include: At least one connecting clip according to any one of claims 1 to 9.

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