Ground source heat shallow ground surface heat exchange pipe end

Abstract

The utility model relates to green energy engineering technical field provides a ground source heat shallow layer ground surface heat exchange pipe pipe head, including pipe body and pipe cover, the pipe cover includes upper cover and axle body, the axle body is connected in the upper cover bottom, is equipped with locking mechanism on the axle body, is equipped with control mechanism in the pipe cover, the control mechanism intercommunication upper cover and axle body, and the control mechanism is used for controlling the slider expansion abutment inner wall of pipe body in locking mechanism. Through setting up pipe cover, locking mechanism and control mechanism, realized the stable connection of pipe cover and pipe body. Control mechanism passes through the control slider expansion, makes the slider and pipe body inner wall close abutment, thereby avoids the pipe cover and falls off because of the loose or ageing, and the stability and reliability of connection are higher. Meanwhile, the control mechanism has the release function, through stopping the slider and abutment loose of pipe body inner wall by the force, conveniently takes out the pipe cover.

Description

TECHNICAL FIELD

[0001] The utility model relates to green energy engineering technical field especially relates to a ground source heat shallow layer surface heat exchange pipe pipe head. BACKGROUND

[0002] The ground source heat pump technology is a kind of renewable energy technology using shallow ground surface soil, underground water or surface water as cold and heat source to exchange heat, with the advantages of high efficiency, energy saving, environmental protection and clean etc.Heat exchange pipe as the important component of ground source heat pump system is usually buried in a certain depth below ground surface, for realizing the heat exchange between ground surface and system.However, in the construction process, the pipe head part of heat exchange pipe is exposed to ground, needs to have reliable sealing and fixing function to prevent sundries, rainwater etc.into pipe body, causes pipe damage even internal heat exchange well.

[0003] In the pipe head of existing heat exchange pipe, usually sealed with plastic cover, there are problems of insufficient connection stability, poor sealing performance and easy to fall off, and if using higher stability such as rubber plug, it will cause larger friction, inconvenient to insert and take out, and rubber plug is easy to age, and the reusability is relatively poor.The pipe body of heat exchange pipe itself is not suitable to change structure with pipe cover, so it will affect its later pipe connection and use.So based on the above problems, a heat exchange pipe head with higher pipe cover connection stability and easy plug and take operation is needed to meet the demand of ground source heat pump system in actual construction. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of ground source heat shallow layer surface heat exchange pipe pipe head, can have better pipe cover connection stability, and pipe cover insertion and removal operation is simple and easy.

[0005] In order to realize the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A kind of ground source heat shallow layer surface heat exchange pipe pipe head, including pipe body and pipe cover, pipe cover includes upper cover and shaft body, shaft body is connected to the bottom of upper cover, locking mechanism is arranged on the shaft body;Control mechanism is arranged in pipe cover, control mechanism is communicated with upper cover and shaft body, and control mechanism is used to control the expansion of slider in locking mechanism and abuts against the inner wall of pipe body.

[0007] Further, the control mechanism includes an operating rod, the operating rod is slidably and rotatably arranged in the shaft body, and the operating rod penetrates the upper cover;The bottom of the operating rod is provided with a connecting table, and the bottom of the connecting table is connected with a control rod.

[0008] Further, the shaft body is further provided with a movable bin, the connecting table is located in the movable bin, the top of the movable bin is connected with a first spring, the bottom of the first spring is connected with the connecting table, and the operating rod is located in the first spring;One pair of L-shaped limit grooves is arranged on the outer side of the movable bin, the L-shaped limit grooves penetrate the shaft body, and the control rod penetrates the L-shaped limit grooves at both ends.

[0009] Further, the locking mechanism comprises a disc body, the disc body is sleeved on the shaft body, two sliding grooves are symmetrically arranged in the disc body, and a sliding block is arranged in each of the two sliding grooves; an arc surface is arranged on the sliding block; and the two ends of the control rod correspond to the arc surfaces respectively.

[0010] Further, a reset table is further arranged on the sliding block, a reset groove is arranged in the disc body, and a second spring is arranged in the reset groove and abuts against the reset table.

[0011] Preferably, a friction layer is arranged on the outer side of the sliding block.

[0012] Preferably, the top of the upper cover is provided with an operation ring.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model discloses a control mechanism and a locking mechanism in the pipe cover cooperate, make the sliding block can expand and abut the pipe body inner wall, make the close combination of pipe cover and pipe body, realize stable and reliable connection effect. Can effectively prevent the pipe cover from falling off, and can be easily removed after the expansion of the sliding block is cancelled, and the connection stability and use convenience of the pipe body and the pipe cover are significantly improved.

[0015] 2. In the control mechanism, through the synergistic effect of the operating rod, the connecting table and the control rod, the user can easily complete the expansion and reset operation of the sliding block by simply pressing or rotating, pulling up the operating rod. Simplify the installation and disassembly process of the pipe cover, reduce the operation complexity, and improve the use efficiency.

[0016] 3. Through the action of the second spring in the reset groove, the sliding block can quickly shrink to the initial position after the control rod removes the force, realizes the quick removal of the pipe cover, the operation process is smooth and efficient, and convenience is provided for subsequent maintenance. DRAWINGS

[0017] The drawings accompanying the specification provide further understanding of the application. The exemplary embodiments of the application, together with its description, are used to explain the application and do not constitute an improper limitation on the application. In the drawings:

[0018] Figure 1 It is a structure schematic view of the pipe head of the ground source heat shallow layer ground surface heat exchange pipe of the utility model;

[0019] Figure 2 It is a structure schematic view of the pipe cover of the utility model;

[0020] Figure 3 It is an external structure schematic view of the control structure of the utility model;

[0021] Figure 4 It is an internal structure schematic view of the control structure of the utility model;

[0022] Figure 5 It is the sectional view of the upper cover and the shaft body of the utility model;

[0023] Figure 6 It is the schematic view of the cooperation relation of the sliding block and the control mechanism of the utility model;

[0024] Figure 7 It is the internal structure schematic view of the locking mechanism of the utility model;

[0025] Wherein: 1, pipe body;2, pipe cover;21, upper cover;22, shaft body;3, locking mechanism;31, sliding block;311, arc surface;312, reset platform;313, friction layer;32, disc body;33, sliding groove;34, reset groove;35, second spring;4, control mechanism;41, operating rod;42, connecting platform;43, control rod;44, first spring;23, movable bin;24, L-shaped limiting groove;25, operating ring. DETAILED DESCRIPTION

[0026] In order to make those skilled in the art better understand the technical scheme of the utility model, the technical scheme of the utility model will be further described below in combination with the drawings and examples.

[0027] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "front end", "rear end", "inner side", "outer side" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0028] In the description of the present application, it should be further explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] The embodiment provides a ground source shallow layer ground surface heat exchange pipe head, such as Figures 1 to 7As shown, it comprises a pipe body 1 and a pipe cover 2, the pipe cover 2 comprises an upper cover 21 and a shaft body 22, the shaft body 22 is connected to the bottom of the upper cover 21, and the shaft body 22 is provided with a locking mechanism 3; the pipe cover 2 is provided with a control mechanism 4, the control mechanism 4 is communicated with the upper cover 21 and the shaft body 22, and the control mechanism 4 is used for controlling the expansion of the sliding block 31 in the locking mechanism 3 to abut against the inner wall of the pipe body 1. By arranging the pipe cover 2, the locking mechanism 3 and the control mechanism 4, the stable connection of the pipe cover 2 and the pipe body 1 is realized. The control mechanism 4 controls the expansion of the sliding block 31, so that the sliding block 31 is tightly abutted against the inner wall of the pipe body 1, thereby avoiding the pipe cover 2 from falling off due to loosening or aging, and the stability and reliability of the connection are higher. Meanwhile, the control mechanism 4 has a release function, the abutment between the sliding block 31 and the inner wall of the pipe body 1 is loosened by stopping the force applied to the sliding block 31, and the pipe cover 2 is convenient to take out.

[0030] Further, the control mechanism 4 comprises an operating rod 41, the operating rod 41 is slidingly and rotatably arranged in the shaft body 22, and the operating rod 41 penetrates through the upper cover 21; the bottom of the operating rod 41 is provided with a connecting table 42, and the bottom of the connecting table 42 is connected with a control rod 43. The expansion of the sliding block 31 can be controlled through the sliding and rotation of the operating rod 41, and the operating rod 41 penetrating through the upper cover 21 is convenient for external operation. The connection of the connecting table 42 and the control rod 43 transmits the movement of the operating rod 41 to the arc surface 311 of the sliding block 31, thereby forming a force transmission path from the operating rod 41 to the sliding block 31, so that the force applied to the sliding block 31 is realized through the arc surface 311.

[0031] Further, the shaft body 22 is further provided with a movable bin 23, the connecting table 42 is located in the movable bin 23, the top of the movable bin 23 is connected with a first spring 44, the bottom of the first spring 44 is connected with the connecting table 42, and the operating rod 41 is located in the first spring 44; a pair of L-shaped limiting grooves 24 is arranged outside the movable bin 23, the L-shaped limiting grooves 24 penetrate through the shaft body 22, and the control rod 43 slides through the L-shaped limiting grooves 24 at both ends. The L-shaped limiting grooves 24 are divided into a vertical section and a horizontal section, which are used for limiting the movement path of the control rod 43, and ensuring the stability and directionality of the control rod 43 in the sliding process.

[0032] Further, the locking mechanism 3 comprises a disc body 32, the disc body 32 is sleeved on the shaft body 22, two sliding grooves 33 are symmetrically arranged in the disc body 32, and the sliding grooves 33 are each provided with a sliding block 31; the sliding block 31 is provided with an arc surface 311, and the control rod 43 is correspondingly arranged at both ends of the arc surface 311. The disc body 32 is a main supporting component of the locking mechanism 3, which is circular in the embodiment, and is provided with limiting layers above and below, and the sliding grooves 33 are located in the middle layer, so as to provide a movement track for the sliding block 31 inside, and make the sliding block 31 keep stable during expansion and reset. The arc surface 311 of the sliding block 31 is in contact with the end of the control rod 43, when the control rod 43 moves, the sliding block 31 is expanded outward through the force of the arc surface 311, and the locking function is realized.

[0033] Specifically, the first spring 44 is initially in a torsion storage state, when the operating rod 41 is pressed down, the control rod 43 passes through the vertical section of the L-shaped limiting slot 24, the first spring 44 releases force, the control rod 43 rotates in the horizontal section of the L-shaped limiting slot 24, and the end of the control rod 43 can push the sliding block 31 through the arc surface 311. The end of the control rod 43 is a bevel, which can increase the contact area and reduce the friction damage to the arc surface 311 when sliding.

[0034] Further, the sliding block 31 is further provided with a reset table 312, the disc body 32 is provided with a reset slot 34, the reset slot 34 is provided with a second spring 35, and the second spring 35 abuts against the reset table 312. When the operating rod 41 is reversely rotated, the control rod 43 rotates, the abutting state with the arc surface 311 is released, the force on the sliding block 31 is cancelled, the second spring 35 can push the sliding block 31 to reset, at this time, the first spring 44 is recharged, and the sliding block 31 can return to the initial position under the action of the second spring 35; the operating rod 41 is pulled up again, the control rod 43 enters the vertical section of the L-shaped limiting slot 24, the state of the first spring 44, the control rod 43 and the operating rod 41 is stabilized, and at this time, the pipe cover 2 can be easily taken out.

[0035] As a preferred, the outer side of the sliding block 31 is provided with a friction layer 313. The friction layer 313 increases the friction force when the sliding block 31 contacts with the inner wall of the pipe body 1, thereby improving the locking effect, and in addition, the material of the friction layer 313 has wear resistance, and the service life of the sliding block 31 can be prolonged.

[0036] As a preferred, the top of the upper cover 21 is provided with an operating ring 25, which is convenient for users to operate.

[0037] Specific application cases:

[0038] In the process of ground source heat construction, the construction personnel buries the ground source heat exchange pipe at a suitable depth below the ground surface, the pipe body 1 extends to the ground surface to be connected with other equipment, and in the construction process, in order to avoid that sundries enter the pipeline and cause damage. At this time, the ground source heat shallow ground surface heat exchange pipe head of the utility model can be applied, the pipe cover 2 can stably close the pipeline, and the reusability is high and the operation is simple.

[0039] 1. Pipe cover installation:

[0040] The shaft body 22 of the pipe cover 2 is aligned and inserted into the opening of the pipe body 1, and the shaft body 22 enters the inside of the pipe body 1, and the pipe cover 2 is attached to the upper edge of the pipe body 1. Only the operating rod 41 needs to be pressed, the operating rod 41 drives the connecting table 42 to move downward, and the control rod 43 at the bottom of the connecting table 42 slides downward along the vertical section of the L-shaped limiting groove 24. When the control rod 43 slides to the horizontal section of the L-shaped limiting groove 24, the first spring 44 releases the torsion, and the control rod 43 rotates. The two ends of the control rod 43 are in contact with the arc-shaped surface 311 of the sliding block 31, and force is applied from the far end to the near end of the arc-shaped surface 311, so as to push the sliding block 31 to expand. The sliding block 31 moves outward in the sliding groove 33 of the disc body 32, and gradually abuts against the inner wall of the pipe body 1. The friction layer 313 of the sliding block 31 increases the contact force, so as to realize stable locking.

[0041] 2, the pipe cover is taken out:

[0042] The operating rod 41 is reversely rotated (the rotating direction can be marked on the pipe cover 2 in specific application), the control rod 43 moves reversely along the horizontal section of the L-shaped limiting groove 24, the control rod 43 releases the outward expansion force on the sliding block 31. The second spring 35 acts on the reset table 312 of the sliding block 31, and pushes the sliding block 31 to shrink inward along the sliding groove 33. As the control rod 43 moves reversely along the horizontal section of the L-shaped limiting groove 24 to the end, the sliding block 31 also completely shrinks into the inside of the disc body 32. The operating rod 41 is pulled upward again, the control rod 43 moves upward along the vertical section of the L-shaped limiting groove 24, and the stable structure state is realized. The operating ring 25 is used to pull out the pipe head.

[0043] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A ground source heat shallow ground surface heat exchange pipe end, comprising a pipe body (1) and a pipe cover (2), characterized in that, The pipe cover (2) comprises an upper cover (21) and a shaft body (22), the shaft body (22) is connected to the bottom of the upper cover (21), and the shaft body (22) is provided with a locking mechanism (3); The pipe cover (2) is provided with a control mechanism (4), the control mechanism (4) is communicated with the upper cover (21) and the shaft body (22), and the control mechanism (4) is used for controlling the slider (31) in the locking mechanism (3) to expand and abut against the inner wall of the pipe body (1); The control mechanism (4) comprises an operating rod (41), the operating rod (41) is slidably and rotatably arranged in the shaft body (22), and the operating rod (41) penetrates the upper cover (21); The bottom of the operating rod (41) is provided with a connecting table (42), and the bottom of the connecting table (42) is connected with a control rod (43); The slider (31) is provided with an arc surface (311), and the two ends of the control rod (43) correspond to one of the arc surfaces (311).

2. The ground-source thermal shallow geopipe end section of claim 1, wherein, The shaft body (22) is further provided with a movable bin (23), the connecting table (42) is located in the movable bin (23), the top of the movable bin (23) is connected with a first spring (44), the bottom of the first spring (44) is connected with the connecting table (42), and the operating rod (41) is located in the first spring (44); The outer side of the movable bin (23) is provided with a pair of L-shaped limiting grooves (24), the L-shaped limiting grooves (24) penetrate the shaft body (22), and the two ends of the control rod (43) slidably penetrate the L-shaped limiting grooves (24).

3. The ground-source thermal shallow geopipe end section of claim 2, wherein, The locking mechanism (3) further comprises a disc body (32), the disc body (32) is sleeved on the shaft body (22), two sliding grooves (33) are symmetrically arranged in the disc body (32), and the two sliding grooves (33) are respectively provided with the slider (31).

4. The ground-source thermal shallow geopipe end section of claim 3, wherein, The slider (31) is further provided with a reset table (312), the disc body (32) is provided with a reset groove (34), the reset groove (34) is provided with a second spring (35), and the second spring (35) abuts against the reset table (312).

5. The ground source thermal shallow geopipe end section of claim 4, wherein, The outer side of the slider (31) is provided with a friction layer (313).

6. The ground source thermal shallow geopipe end section of claim 1, wherein, The top of the upper cover (21) is provided with an operating ring (25).

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