Carbon dioxide combined cooling and heating unit

Abstract

The utility model provides a carbon dioxide combined cooling and heating unit which comprises a first connecting pipe arranged on the side face of a combined cooling and heating unit body and a connecting mechanism arranged on the first connecting pipe and connected with an external second connecting pipe, and a clamping groove communicated with an inner pipeline is formed in the end face of the end, away from the combined cooling and heating unit body, of the first connecting pipe. The clamping pipe is fixedly arranged at the end of the second connecting pipe and can penetrate through the clamping groove, the bottom end of the clamping rod is rotationally arranged at the bottom of a positioning groove formed in the end face of the end, away from the combined cooling and heating unit body, of the first connecting pipe, and the clamping block is fixedly arranged at the top end of the clamping rod. The control assembly is arranged on the first connecting pipe and controls the bottom of the clamping rod to move in the direction of the combined cooling and heating unit body, and the elastic assembly is arranged in the positioning groove and controls the top of the clamping rod to move in the direction of an inner pipe of the first connecting pipe. According to the utility model, pipeline connection can be conveniently carried out on the combined cooling and heating unit, and the sealing performance of pipeline connection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon dioxide combined cooling and heating units, in particular to a carbon dioxide combined cooling and heating unit. Background Art

[0002] The carbon dioxide combined cooling and heating unit is environmentally friendly and pollution-free. It adopts carbon dioxide transcritical cycle refrigeration and heating technology, with multiple compressors in parallel, recovering waste heat in the form of water sources. The control system integrates variable frequency control technology, real-time control of energy regulation, high comprehensive energy efficiency, and good market prospects.

[0003] In the prior art, the existing carbon dioxide combined heat and cold plant has a wide range of application scenarios and can be used in hotels, bathing places, residences, apartments and many other places for heating in winter and cooling in summer. However, the existing carbon dioxide combined heat and cold plant usually needs to be installed with corresponding pipes when in use. However, some existing carbon dioxide combined heat and cold plants usually need to be installed directly with screws when installing the connecting pipes. When using screws to install the connecting pipes, the installer needs to manually position the connecting pipes to avoid misalignment of the connecting pipes. This is time-consuming and labor-intensive, and is not convenient for the installer to install the connecting pipes. Utility Model Content

[0004] In response to the above technical problems, the utility model provides a carbon dioxide combined cooling and heating unit, which can conveniently connect the pipelines of the combined cooling and heating unit and improve the sealing performance of the pipeline connections.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a carbon dioxide combined heat and cold supply unit, comprising a combined heat and cold supply unit body, a first connecting pipe arranged on a side surface of the combined heat and cold supply unit body, and a connecting mechanism arranged on the first connecting pipe to connect to an external second connecting pipe, wherein the end surface of the first connecting pipe away from the combined heat and cold supply unit body is provided with a clamping groove that penetrates the inner pipe; the connecting mechanism comprises a clamping pipe fixedly arranged on the end of the second connecting pipe and capable of being inserted into the clamping groove, a clamping rod with a bottom end rotatably arranged at the bottom of a positioning groove formed on the end surface of the first connecting pipe away from the combined heat and cold supply unit body, a clamping block fixedly arranged on the top end of the clamping rod, a control component arranged on the first connecting pipe and controlling the bottom of the clamping rod to move toward the combined heat and cold supply unit body, and an elastic component arranged in the positioning groove and controlling the top of the clamping rod to move toward the inner pipe of the first connecting pipe, and a clamping groove matching the clamping block is provided on the side of the clamping pipe.

[0006] Preferably, the number of the positioning grooves is three, and the three positioning grooves are arranged in a circular array on the end surface of the first connecting pipe.

[0007] Preferably, a lifting groove in an annular structure is provided on the side of the first connecting pipe, which is connected to the inside of the three positioning grooves. The control component includes a lifting ring that is movably mounted in the lifting groove and is located in the lifting groove away from the main body of the combined heat and cold supply unit, and a limiting member that is arranged on the lifting ring and the wall of the lifting groove and controls the lifting ring to move away from the main body of the combined heat and cold supply unit. A clamping rod is provided on the end face of the lifting ring located in the positioning groove through an elastic component; the outer ring surface of the lifting ring extends to the outside of the lifting groove.

[0008] Preferably, the elastic component includes a fixed block fixed on the top end face of the lifting ring in the positioning groove, and a clamping spring arranged between the fixed block and the adjacent top of the clamping rod and with both ends fixedly connected to the adjacent end faces of the fixed block and the clamping rod respectively, the bottom end of the clamping rod is rotated to connect to the top end face of the lifting ring, and the clamping spring is in a compressed state.

[0009] Preferably, a limit groove is provided on the groove wall of the lifting groove adjacent to the side of the combined cooling and heating unit body, and the limit member includes a limit spring which is passed through the limit groove and has two ends fixedly connected to the bottom wall of the limit groove and the end face of the lifting ring respectively, and the limit spring is in a compressed state.

[0010] Preferably, a connecting thread is provided on one end of the first connecting pipe away from the combined cooling and heating unit body, and the control component includes a control screw ring which is sleeved on the connecting thread through a threaded connection.

[0011] The advantageous effects of the present invention are as follows: the clamping tube provided on the end portion of the second connecting tube is passed through the clamping groove provided on the end surface of the first connecting tube, and in the process of the clamping tube passing through the clamping groove, the bottom portion of the clamping tube first pushes the clamping block to move in a direction away from the clamping tube, at this time the clamping rod will compress the elastic component, and when the clamping tube moves into the clamping groove provided on the side of the clamping tube and the position of the clamping block provided on the end portion of the clamping rod, the clamping block will move into the clamping groove under the action of the elastic component, thereby facilitating the pre-fixation of the position of the clamping tube in the clamping groove, and cooperating with the control component to drive the bottom portion of the clamping rod to move toward the main body of the combined heat and cold supply unit, thereby facilitating the close fit between the clamping tube and the bottom wall of the clamping groove, thereby improving the sealing between the clamping tube and the bottom wall of the clamping groove, improving the installation efficiency between the first connecting tube and the second connecting tube, conveniently connecting the pipes of the combined heat and cold supply unit, and improving the sealing of the pipe connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 This is a simplified structural diagram of the carbon dioxide combined cooling and heating unit proposed in the utility model.

[0014] Figure 2 This is a schematic diagram of the connecting mechanism structure of the present utility model.

[0015] Figure 3 This is an enlarged structural diagram of point A of the present invention.

[0016] In the figure: 1. Combined heating and cooling unit body; 2. First connecting pipe; 3. Second connecting pipe; 4. Connecting thread; 5. Positioning groove; 6. Lifting groove; 7. Limiting spring; 8. Lifting ring; 9. Clamping groove; 10. Clamping pipe; 11. Clamping groove; 12. Fixing block; 13. Clamping rod; 14. Control screw ring; 15. Limiting groove. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0018] See also Figure 1-3 The utility model discloses a carbon dioxide combined heat and cold supply unit, comprising a combined heat and cold supply unit body 1, a first connecting pipe 2 arranged on the side of the combined heat and cold supply unit body 1, and a connecting mechanism arranged on the first connecting pipe 2 to connect to an external second connecting pipe 3, the first connecting pipe 2 is provided with a clamping groove 9 which is communicated with an inner pipe on an end surface away from the combined heat and cold supply unit body 1; the connecting mechanism comprises a clamping pipe 10 fixedly arranged on the end of the second connecting pipe 3 and capable of being passed through the clamping groove 9, a clamping rod 13 rotatably arranged at the bottom of the positioning groove 5 on the end surface of the first connecting pipe 2 away from the combined heat and cold supply unit body 1, a clamping block fixedly arranged on the top end of the clamping rod 13, a control component arranged on the first connecting pipe 2 and controlling the bottom of the clamping rod 13 to move toward the combined heat and cold supply unit body 1, and an elastic component arranged in the positioning groove 5 and controlling the top of the clamping rod 13 to move toward the inner pipe direction of the first connecting pipe 2, and a clamping groove 11 matching the clamping block is provided on the side of the clamping pipe 10.

[0019] like Figure 1-3As shown, when connecting the cooling and heating unit body 1 and the pipeline, the clamping tube 10 provided on the end of the second connecting tube 3 is passed through the clamping groove 9 provided at the end of the first connecting tube 2. In the process of passing the clamping tube 10 through the clamping groove 9, the end of the clamping tube 10 first pushes the clamping rod 13 to move away from the clamping tube 10, compressing the elastic component, and when the clamping tube 10 moves to the clamping groove 11 provided on the side and faces the position of the clamping block, the clamping rod 13, under the action of the elastic component, pushes the clamping block to move into the clamping groove 11, so that the position of the clamping tube 10 between the first connecting tube 2 is fixed in the clamping groove 11, and the position between the first connecting tube 2 and the second connecting tube 3 is pre-fixed. At this time, the control component drives the clamping rod 13 to move downward, so that the clamping block provided on the clamping rod 13 drives the end of the clamping tube 10 to fit tightly with the bottom wall of the clamping groove 9, so that the pipeline connection of the cooling and heating unit body 1 can be conveniently performed and the sealing of the pipeline connection is improved.

[0020] There are three positioning grooves 5 , and the three positioning grooves 5 are arranged in a circumferential array on the end surface of the first connecting pipe 2 .

[0021] like Figure 1-3 As shown, when the clamping tube 10 is inserted into the clamping groove 9, the clamping blocks provided on the ends of the three clamping rods 13 provided in the three positioning grooves 5 will be inserted into the three clamping grooves 11 provided on the side surfaces of the clamping tube 10, thereby facilitating the pre-fixation of the position of the clamping tube 10 in the clamping groove 9 and defining the position of the clamping tube 10 and the clamping groove 9.

[0022] A lifting groove 6 in an annular structure is provided on the side of the first connecting pipe 2 and is connected to the inside of the three positioning grooves 5. The control component includes a lifting ring 8 that is movably sleeved in the lifting groove 6 and is located at a position where the lifting groove 6 is away from the main body 1 of the combined heat and cold supply unit, and a limiting member that is provided on the lifting ring 8 and the wall of the lifting groove 6 and controls the lifting ring 8 to move away from the main body 1 of the combined heat and cold supply unit. A clamping rod 13 is provided on the end surface of the lifting ring 8 located in the positioning groove 5 through an elastic component; the outer ring surface of the lifting ring 8 extends to the outside of the lifting groove 6.

[0023] like Figure 2-3 As shown, when the clamping tube 10 is inserted into the clamping groove 9, the control screw ring 14 is rotated, and the control screw ring 14 is threadedly connected to the connecting thread 4, so that the control screw ring 14 can be moved downward on the first connecting tube 2, so that the lifting ring 8 can be driven by the control screw ring 14 to move downward in the lifting groove 6, compressing the limiter, so that the clamping rod 13 and the clamping block provided on the rod body of the clamping rod 13 can be driven by the lifting ring 8 to move toward the bottom wall of the clamping groove 9, so that the end face of the clamping tube 10 can be closely fitted with the bottom wall of the clamping groove 9, so that the pipeline connection of the combined heat and cold supply unit body 1 can be conveniently performed, and the sealing of the pipeline connection is improved.

[0024] The elastic component includes a fixed block 12 fixedly arranged on the top end face of the lifting ring 8 in the positioning groove 5, and a clamping spring arranged between the adjacent tops of the fixed block 12 and the clamping rod 13 and with both ends fixedly connected to the adjacent end faces of the fixed block 12 and the clamping rod 13 respectively. The bottom end of the clamping rod 13 is rotated to connect to the top end face of the lifting ring 8, and the clamping spring is in a compressed state.

[0025] A limiting groove 15 is provided on the groove wall of the lifting groove 6 adjacent to the cooling and heating combined heat supply unit body 1. The limiting member includes a limiting spring 7 which is passed through the limiting groove 15 and whose two ends are respectively fixedly connected to the bottom wall of the limiting groove 15 and the end face of the lifting ring 8. The limiting spring 7 is in a compressed state.

[0026] like Figure 2 As shown, when the clamping tube 10 moves toward the bottom wall of the clamping groove 9, the elastic force of the limit spring 7 set in the limit groove 15 facilitates the upper position of the lifting ring 8, thereby facilitating the clamping block at the top of the clamping rod 13 to be located in the clamping groove 9, thereby facilitating the clamping rod 13 to be pushed away from the clamping tube 10 during the process of the clamping tube 10 passing through the clamping groove 9, and then the clamping block set at the end of the clamping rod 13 is driven to pass through the clamping groove 11 under the action of the elastic component, thereby facilitating the position of the clamping tube 10 in the clamping groove 9.

[0027] A connecting thread 4 is provided on one end of the first connecting pipe 2 away from the combined cooling and heating unit body 1 , and the control assembly includes a control screw ring 14 which is sleeved on the connecting thread 4 through a threaded connection.

[0028] The control screw ring 14 is sleeved on the outer tube wall of the first connecting pipe 2 away from the combined heat and cold supply unit body 1 through a threaded connection. By rotating the control screw ring 14, the control screw ring 14 can be adjusted to move up and down on the outer tube wall of the first connecting pipe 2.

[0029] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A carbon dioxide combined cooling and heating unit, comprising a combined cooling and heating unit body (1), a first connecting pipe (2) provided on a side of the combined cooling and heating unit body (1), and a connecting mechanism provided on the first connecting pipe (2) for connecting to an external second connecting pipe (3), characterized in that: The first connecting pipe (2) is provided with a clamping groove (9) that is communicated with the inner pipe on the end surface of the first connecting pipe (2) away from the cooling and heating unit body (1); the connecting mechanism comprises a clamping pipe (10) fixedly arranged on the end of the second connecting pipe (3) and capable of being inserted into the clamping groove (9), a clamping rod (13) whose bottom end is rotatably arranged at the bottom of the positioning groove (5) provided on the end surface of the first connecting pipe (2) away from the cooling and heating unit body (1), a clamping block fixedly arranged on the top end of the clamping rod (13), a control component arranged on the first connecting pipe (2) and controlling the bottom of the clamping rod (13) to move toward the cooling and heating unit body (1), and an elastic component arranged in the positioning groove (5) and controlling the top of the clamping rod (13) to move toward the inner pipe of the first connecting pipe (2); and a clamping groove (11) matching the clamping block is provided on the side of the clamping pipe (10).

2. The carbon dioxide combined cooling and heating unit according to claim 1, characterized in that: The number of the positioning grooves (5) is three, and the three positioning grooves (5) are arranged in a circumferential array on the end surface of the first connecting pipe (2).

3. The carbon dioxide combined cooling and heating unit according to claim 2, characterized in that: A lifting groove (6) having an annular structure and penetrating the interior of the three positioning grooves (5) is provided on the side of the first connecting pipe (2). The control component comprises a lifting ring (8) movably sleeved in the lifting groove (6) and located at a position where the lifting groove (6) is away from the combined cooling and heating unit body (1), and a limiting member provided on the lifting ring (8) and the groove wall of the lifting groove (6) and controlling the lifting ring (8) to move in a direction away from the combined cooling and heating unit body (1). A clamping rod (13) is provided on the end surface of the lifting ring (8) located in the positioning groove (5) via an elastic component; and the outer ring surface of the lifting ring (8) extends to the outside of the lifting groove (6).

4. The carbon dioxide combined cooling and heating unit according to claim 3, characterized in that: The elastic component comprises a fixed block (12) fixedly arranged on the top end face of the lifting ring (8) in the positioning groove (5), and a clamping spring arranged between the adjacent tops of the fixed block (12) and the clamping rod (13), and the two ends of which are respectively fixedly connected to the adjacent end faces of the fixed block (12) and the clamping rod (13); the bottom end of the clamping rod (13) is rotatably connected to the top end face of the lifting ring (8), and the clamping spring is in a compressed state.

5. The carbon dioxide combined cooling and heating unit according to claim 4, characterized in that: A limiting groove (15) is provided on the groove wall of the lifting groove (6) adjacent to the cooling and heating combined heat supply unit body (1). The limiting member includes a limiting spring (7) which is inserted into the limiting groove (15) and has two ends fixedly connected to the bottom wall of the limiting groove (15) and the end face of the lifting ring (8). The limiting spring (7) is in a compressed state.

6. The carbon dioxide combined cooling and heating unit according to claim 5, characterized in that: A connecting thread (4) is provided on one end of the first connecting pipe (2) away from the combined cooling and heating unit body (1), and the control component includes a control screw ring (14) sleeved on the connecting thread (4) through a threaded connection.

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