CN113758049A

CN113758049A - Double-temperature air source heat pump unit

Info

Publication number: CN113758049A
Application number: CN202110954978.1A
Authority: CN
Inventors: 刘亚超; 杨浩
Original assignee: Individual
Current assignee: Hefei Rongshida Solar Energy Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2021-12-07
Anticipated expiration: 2041-08-19
Also published as: CN113758049B

Abstract

The invention discloses a dual-temperature air source heat pump unit which comprises a fixed base plate, wherein the outer surface of the upper end of the fixed base plate is fixedly connected with a fixed base, the upper end of the fixed base plate is fixedly connected with a compressor, the annular outer surface of the fixed base plate is fixedly connected with a plurality of tapping pins, the tapping pins are fixedly connected with the fixed base plate through screws, and the position, located on the outer side of the fixed base, of the outer surface of the upper end of the fixed base plate is fixedly connected with a fastening mechanism. The screw loosening prevention mechanism is arranged to prevent the screw from loosening due to vibration generated when the compressor runs and further enable the compressor to shake, so that normal operation of the heat pump unit is guaranteed, maintenance frequency is reduced, convenience is brought to use of a user, the screw loosening jacking rod due to vibration influence is prevented by arranging the limiting mechanism, and the fastening effect of the fastening mechanism is further enhanced.

Description

Double-temperature air source heat pump unit

Technical Field

The invention relates to the technical field of heat pumps, in particular to a dual-temperature air source heat pump unit.

Background

A Heat Pump (Heat Pump) is a device for transferring Heat energy from a low-level Heat source to a high-level Heat source, and is also a new energy technology which attracts attention worldwide. Unlike the familiar mechanical equipment, pump, heat pump usually obtains low-grade heat energy from air, water or soil in nature, and then provides high-grade heat which can be utilized by doing work through electric power. The application of the heat pump is very wide, and the water heater comprises a heat pump system.

Chinese patent discloses a heat pump set, patent application number CN202021793114.3, including: the unit main body comprises a unit fluorine path, a heat exchanger, a fan and an electric box; the middle bottom plate is arranged at the top end or the bottom end of the unit main body; the layered structure sets up in middle bottom plate upper end or lower extreme, is connected with the unit main part through middle bottom plate, includes: a support base plate; the first supporting piece is L-shaped and is arranged on one side of the supporting base plate along the edge of the supporting base plate, and one end of the first supporting piece is connected with the supporting base plate.

The casing heat exchanger and the compressor are arranged in a layered structure, so that the maintenance space around the compressor is enlarged, the compressor can be conveniently detached and maintained, but the compressor is a main excitation source in the heat pump unit and is one of main causes of vibration and noise damage of the heat pump unit product, the problem that how to conveniently and quickly maintain the compressor by placing the center of gravity is solved, various harms of the compressor caused by vibration generated during working are ignored, the compressor is generally fixedly connected with a fixed bottom plate through screws, the fixing strength is low, the connection effect is poor, particularly for a vertical compressor, in the long-term working process of the compressor, the screws are easily affected by vibration to be loosened, the compressor shakes, the normal operation of the heat pump unit is affected, the maintenance frequency is improved, and manpower and material resources brought by maintenance are increased, bringing inconvenience to the user.

Therefore, a dual-temperature air source heat pump unit is provided.

Disclosure of Invention

The invention aims to provide a dual-temperature air source heat pump unit to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a double-temperature air source heat pump unit comprises a fixed base plate, wherein a fixed base is fixedly connected to the outer surface of the upper end of the fixed base plate, a compressor is fixedly connected to the upper end of the fixed base plate, a plurality of tapping pins are fixedly connected to the annular outer surface of the fixed base plate, the tapping pins are fixedly connected with the fixed base plate through screws, and a fastening mechanism is fixedly connected to the position, located on the outer side of the fixed base, of the outer surface of the upper end of the fixed base plate;

the fastening mechanism comprises a fixing ring, a first arc-shaped groove, a clamping ring, a fastening plate, a first annular groove, a resisting rod, a fixing cylinder, a first spring, a first semicircular plate and a second semicircular plate, the lower end of the fixing ring is fixedly connected with a fixing bottom plate, the arc-shaped inner surface of the fixing ring is mutually attached to a fixing base, a plurality of first arc-shaped grooves are formed in the position, close to a tapping pin, of the annular inner surface of the fixing ring, the first arc-shaped grooves are mutually attached to the tapping pin, the upper end of the annular outer surface of the fixing ring is fixedly connected with the clamping ring, the fastening plate is fixedly connected to the outer surface of the fixing ring in an attached mode, the first annular groove is formed in the annular inner surface of the fastening plate, the first annular groove is mutually clamped with the clamping ring, the resisting rod is fixedly connected to the outer surface of the upper end of the screw, the upper end of the resisting rod penetrates through the fastening plate and extends to the upper end of the fastening plate, and a plurality of fixing cylinders are fixedly connected to the positions, which are positioned outside the resisting rod, of the upper end of the fastening plate, the supporting rod is connected with the annular inner surface of the fixed cylinder in a sliding mode, the annular outer surface of the supporting rod is sleeved with a first spring, the upper end of the first spring is fixedly connected with the supporting rod, the lower end of the first spring is fixedly connected with the fixed cylinder, and the fastening plate is formed by mutually splicing a first semicircular plate and a second semicircular plate.

Because the compressor is a main excitation source in the heat pump unit and is one of main causes of vibration noise damage of the heat pump unit product, the compressor is generally fixedly connected with the fixed bottom plate through the screw, the fixing strength is low, the connection effect is poor, particularly for a vertical compressor, in the long-term working process of the compressor, the screw is easy to loose due to the influence of vibration, the compressor is enabled to shake, the normal operation of the heat pump unit is affected, the maintenance frequency is improved, manpower and material resources brought by maintenance are increased, and inconvenience is brought to the use of a user, by arranging the fastening mechanism, when the compressor is installed, the fixed base is firstly placed on the inner side of the fixed ring, the tapping pin is enabled to be mutually attached to the first arc-shaped groove, the tapping pin is enabled to be connected with the fixed bottom plate through the installation of the screw, the compressor is further fixedly connected with the fixed bottom plate, and then the first half circular plate and the second half circular plate are mutually spliced to form the fastening plate, the first annular groove and the clamping ring are mutually clamped, the screw rod is pressed through the pressing rod, and the pressing rod is pressed through the elastic force of the first spring, so that the pressing force of the pressing rod on the screw is enhanced.

Preferably, the upper end of the annular outer surface of the fixed cylinder is rotatably connected with a limiting mechanism through a bearing;

the limiting mechanism comprises a movable cylinder, a sliding block, a clamping block, a second annular groove, an arc-shaped plate, a first chute, a movable rod, a third annular groove and a second spring, the annular inner surface of the movable cylinder is rotatably connected with the fixed cylinder through a bearing, the annular outer surface of the fixed cylinder is provided with a plurality of through grooves, the inside of each through groove is connected with the sliding block in a sliding manner, one end of the sliding block, which is close to the abutting rod, is fixedly connected with the clamping block, the position, which is close to the clamping block, of the annular outer surface of the abutting rod is provided with the second annular groove, the clamping block is mutually clamped with the second annular groove, the position, which is located at the lower end of the second annular groove, of the annular outer surface of the abutting rod is provided with the third annular groove, one end, which is far away from the clamping block, of the sliding block is fixedly connected with the arc-shaped plate, the outer surface of one side, which is far away from the sliding block, of the arc-shaped plate is provided with the fixed cylinder, is provided with the first chute, and the second spring is connected with the fixed cylinder, the inside sliding connection of first chute has the movable rod, one side and the activity section of thick bamboo fixed connection that first chute was kept away from to the movable rod.

When the tapping machine works, because the lower end of the abutting rod extends into the tapping pin, when the first semicircular plate and the second semicircular plate are spliced, the lower end of the abutting rod can be contacted with the clamping ring, so that the assembly of the fastening plate is influenced, the abutting rod needs to move upwards to avoid clamping with the clamping ring during the splicing, the assembly is very inconvenient, meanwhile, because the abutting rod only abuts against the screw through the elasticity of the first spring, a limiting mechanism is lacked for limiting the abutting rod, so that the screw is easy to loose and jack the abutting rod due to the influence of vibration, and the fastening effect of the fastening mechanism is influenced, the invention firstly lifts the abutting rod to enable the third annular groove to correspond to the position of the clamping block before the fastening plate is spliced by arranging the limiting mechanism, and rotates the movable cylinder clockwise to drive the movable rod to rotate, so that the movable rod slides along the first chute, and because the first chute is designed in an inclined structure, the movable rod can abut against the first chute and drive the arc-shaped plate to move towards the direction close to the abutting rod when rotating, the slide block and the clamping block also move along with the slide block and enable the clamping block to be clamped with the third annular groove, so that the abutting rod is limited, after the first semicircular plate and the second semicircular plate are spliced, the movable barrel is rotated anticlockwise, the slide block moves towards the direction far away from the abutting rod under the elastic force of the second spring, the clamping block is separated from the third annular groove, the abutting rod moves downwards under the elastic force of the first spring and abuts against the screw, the clamping block corresponds to the second annular groove at the moment, then the movable barrel is rotated clockwise, so that the clamping block is clamped with the second annular groove, so that the position of the abutting rod is fixed, the limiting mechanism is arranged, the clamping block is clamped with the third annular groove, the abutting rod is limited, the clamping situation of the abutting rod and the clamping ring when the fastening plate is spliced is prevented, the installation operation is convenient for workers, and the abutting rod is fixed by the clamping block and the second annular groove, the screw is prevented from being loosened and jacked to the abutting rod due to the influence of vibration, and the fastening effect of the fastening mechanism is further enhanced.

Preferably, the transversal trapezoidal structural design of personally submitting in one side that the movable rod is close to first chute, the movable groove has been seted up to the one end that the movable rod is close to first chute, the inside roll connection in movable groove has the ball, ball and the internal surface one side roll connection of first chute, half spherical groove has been seted up to the position that internal surface one side of first chute is located the ball, half spherical groove and ball coincide each other.

When the limiting mechanism works, the movable rod can rub the first chute when sliding along with the movable barrel in the first chute, friction can affect the rotation of the movable barrel, so that a worker cannot conveniently operate the limiting mechanism, in addition, when the limiting mechanism limits the limit of the abutting rod, the movable rod can easily slide relative to the first chute, so that the sliding block and the clamping block can move, the clamping block is separated from the second annular groove and the third annular groove, and the limiting effect of the limiting mechanism on the abutting rod is affected, the invention has the advantages that the friction generated when the movable rod slides relative to the first chute is reduced by arranging the balls and utilizing the rolling connection between the balls and the first chute, the worker can conveniently operate the limiting mechanism, the movable rod is prevented from sliding relative to the first chute by the mutual clamping of the balls and the hemispherical grooves, so that the sliding block and the clamping block can move, the clamping block, the second annular groove and the third annular groove are separated from each other, so that the limiting effect of the limiting mechanism on the abutting rod is guaranteed.

Preferably, the position fixedly connected with elasticity card strip that the upper end outside face of mounting plate is close to the solid fixed cylinder outside, the annular surface of a movable section of thick bamboo is close to the first connecting block of one side fixedly connected with of elasticity card strip, first draw-in groove has been seted up to one side surface that a movable section of thick bamboo was kept away from to first connecting block, the mutual block of upper end and first draw-in groove of elasticity card strip.

When the movable rod limiting device works, the movable rod is limited only by the fact that the ball and the hemispherical groove are clamped with each other, the limiting effect is poor, and the ball and the hemispherical groove are easily separated from each other.

Preferably, the front side and the rear side of the annular outer surface of the compressor are fixedly connected with two arc-shaped blocks at the lower end, two second arc-shaped grooves are formed in the positions, close to the arc-shaped blocks, of the annular inner surface of the fastening plate, the second arc-shaped grooves are attached to the arc-shaped blocks, and the first semicircular plate and the second semicircular plate are connected through two groups of connecting mechanisms.

During operation, after the fastening plate is assembled, the positions of the abutting rods and the tapping pins are required to be ensured to be in one-to-one correspondence, and the fastening plate is positioned due to the lack of the positioning mechanism, so that the difficulty is brought to the assembling work.

Preferably, the connecting mechanism comprises an elastic clamping plate, a second connecting block, a second clamping groove and a second chute, the lower end of the elastic clamping plate is fixedly connected with the first semicircular plate, the outer surface of the upper end of the second semicircular plate is close to the second connecting block fixedly connected with one side of the elastic clamping plate, the second clamping groove is formed in the inner center of the second connecting block, one side of the elastic clamping plate close to the second connecting block is clamped with the second clamping groove, and the corner of one side of the outer surface of the upper end of the second connecting block close to the first semicircular plate is provided with the second chute.

When the connecting structure works, the fastening plate is fixed only by mutually attaching the inner surfaces of the abutting rod and the tapping pin, the fixing effect is poor, the fastening plate is formed by mutually splicing a first semi-circular plate and a second semi-circular plate, and the first fixing plate and the second fixing plate are connected without a connecting mechanism, so that the stability of the fastening plate is influenced, and the fastening effect of the fastening mechanism is influenced. The fastening plate is convenient to assemble.

Compared with the prior art, the invention has the beneficial effects that:

the fastening plate is fixed by the fastening plate and the snap ring which are mutually clamped, the fastening plate is limited by the mutual adhesion of the abutting rod and the inner surface of the tapping pin, the inner surface of the fastening plate and the fixed base are mutually adhered, so that the connection stability between the fixed base and the fixed bottom plate is enhanced, the abutting rod is utilized to abut against the screw, the screw is prevented from being loosened by the vibration generated when the compressor operates, the compressor is further shaken, the normal operation of a heat pump unit is ensured, the maintenance frequency is reduced, the use of a user is facilitated, the abutting rod is limited by the clamping of the clamping block and the third annular groove by the limiting mechanism, the clamping of the abutting rod and the snap ring is prevented when the fastening plate is assembled, the installation operation of workers is facilitated, and the abutting rod is fixed by the clamping block and the second annular groove which are mutually clamped, the screw is prevented from being loosened and jacked to the abutting rod due to the influence of vibration, and the fastening effect of the fastening mechanism is further enhanced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the internal mechanism of the fastening mechanism of the present invention;

FIG. 3 is an exploded view of the fastening plate, the retaining base and the retaining ring of the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 2;

FIG. 5 is a schematic view of the combination of the fixed cylinder and the movable cylinder according to the present invention;

FIG. 6 is a cross-sectional view of the slider and the latch according to the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 6 at B in accordance with the present invention;

FIG. 8 is a combined cross-sectional view of an arc block and a second arc slot of the present invention;

FIG. 9 is a sectional view of the resilient clip of the present invention in combination with a second clip slot.

In the figure: 1. fixing the bottom plate; 11. a fixed base; 12. a compressor; 13. tapping pins; 14. a screw; 15. an arc-shaped block; 2. a fastening mechanism; 21. a fixing ring; 22. a first arc-shaped slot; 23. a snap ring; 24. a fastening plate; 241. a first semi-circular plate; 242. a second semicircular plate; 25. a first annular groove; 26. a support rod; 27. a fixed cylinder; 28. a first spring; 29. a through groove; 20. a second arc-shaped slot; 3. a limiting mechanism; 31. a movable barrel; 32. a slider; 33. a clamping block; 34. a second annular groove; 35. an arc-shaped plate; 36. a first chute; 37. a movable rod; 38. a movable groove; 39. a ball bearing; 30. a hemispherical groove; 311. an elastic clamping strip; 312. a first connection block; 313. a first card slot; 314. a third annular groove; 315. a second spring; 4. a connecting mechanism; 41. an elastic clamping plate; 42. a second connecting block; 43. a second card slot; 44. a second chute.

Detailed Description

The invention now will be described in connection with a few, but not all, embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 9, the present invention provides a technical scheme of a dual-temperature air source heat pump unit:

a dual-temperature air source heat pump unit is shown in figures 1, 2, 3, 4 and 8 and comprises a fixed base plate 1, wherein the outer surface of the upper end of the fixed base plate 1 is fixedly connected with a fixed base 11, the upper end of the fixed base 11 is fixedly connected with a compressor 12, the annular outer surface of the fixed base 11 is fixedly connected with a plurality of tapping pins 13, the tapping pins 13 are fixedly connected with the fixed base plate 1 through screws 14, and the position, located on the outer side of the fixed base plate 11, of the outer surface of the upper end of the fixed base plate 1 is fixedly connected with a fastening mechanism 2;

the fastening mechanism 2 comprises a fixing ring 21, a first arc-shaped groove 22, a clamping ring 23, a fastening plate 24, a first annular groove 25, a support rod 26, a fixing cylinder 27, a first spring 28, a first semicircular plate 241 and a second semicircular plate 242, the lower end of the fixing ring 21 is fixedly connected with the fixing base plate 1, the arc-shaped inner surface of the fixing ring 21 is mutually attached to the fixing base 11, a plurality of first arc-shaped grooves 22 are arranged at the positions, close to the tapping pins 13, of the annular inner surface of the fixing ring 21, the first arc-shaped grooves 22 are mutually attached to the tapping pins 13, the clamping ring 23 is fixedly connected to the upper end of the annular outer surface of the fixing ring 21, the fastening plate 24 is connected to the outer surface of the fixing ring 21 in an attaching manner, the first annular groove 25 is arranged on the annular inner surface of the fastening plate 24, the first annular groove 25 is mutually clamped with the clamping ring 23, the upper end outer surface of the screw 14 is fixedly connected with the support rod 26, the upper end of the abutting rod 26 penetrates through the fastening plate 24 and extends to the upper end of the fastening plate 24, a plurality of fixing cylinders 27 are fixedly connected to the outer surface of the upper end of the fastening plate 24, which is located on the outer side of the abutting rod 26, the abutting rod 26 is slidably connected with the inner annular surface of the fixing cylinders 27, a first spring 28 is sleeved on the outer annular surface of the abutting rod 26, the upper end of the first spring 28 is fixedly connected with the abutting rod 26, the lower end of the first spring 28 is fixedly connected with the fixing cylinders 27, and the fastening plate 24 is formed by mutually splicing a first semi-circular plate 241 and a second semi-circular plate 242.

Because the compressor 12 is a main excitation source in the heat pump unit and is one of main causes of vibration noise damage of the heat pump unit product, the compressor 12 is generally fixedly connected with the fixed bottom plate 1 through the screw 14, the fixing strength is low, the connection effect is poor, particularly for the vertical compressor 12, in the long-term working process of the compressor 12, the screw 14 is easily loosened under the influence of vibration, the compressor 12 is shaken, the normal operation of the heat pump unit is influenced, the maintenance frequency is improved, manpower and material resources brought by maintenance are increased, and inconvenience is brought to the use of a user, by arranging the fastening mechanism 2, when the compressor is installed, the fixed base 11 is firstly placed on the inner side of the fixed ring 21, the tapping pin 13 is mutually attached to the first arc-shaped groove 22, the tapping pin 13 is connected with the fixed bottom plate 1 through the screw 14, and the compressor 12 is further fixedly connected with the fixed bottom plate 1, then, the first semicircular plate 241 and the second semicircular plate 242 are mutually spliced to form a fastening plate 24, the first annular groove 25 and the snap ring 23 are mutually clamped, the screw rod is pressed through the abutting rod 26, and the abutting rod 26 is pressed through the elastic force of the first spring 28, so that the abutting force of the abutting rod 26 to the screw 14 is enhanced, through the arrangement of the fastening mechanism 2, the fastening plate 24 is fixed through the mutual clamping of the fastening plate 24 and the snap ring 23, the abutting rod 26 and the inner surface of the tapping pin 13 are mutually attached to limit the fastening plate 24, the inner surface of the fastening plate 24 and the fixed base 11 are mutually attached to enhance the stability of the connection between the fixed base 11 and the fixed base plate 1, the abutting rod 26 is utilized to press the screw 14, so that the screw 14 is prevented from being loosened due to the vibration generated when the compressor 12 runs, and the compressor 12 is further shaken, the normal operation of the heat pump unit is ensured, the maintenance frequency is reduced, and convenience is brought to the use of a user.

As an embodiment of the present invention, as shown in fig. 4 to 7, the upper end of the annular outer surface of the fixed cylinder 27 is rotatably connected with a limiting mechanism 3 through a bearing;

the limiting mechanism 3 comprises a movable cylinder 31, a sliding block 32, a clamping block 33, a second annular groove 34, an arc-shaped plate 35, a first inclined groove 36, a movable rod 37, a third annular groove 314 and a second spring 315, wherein the annular inner surface of the movable cylinder 31 is rotatably connected with the fixed cylinder 27 through a bearing, the annular outer surface of the fixed cylinder 27 is provided with a plurality of through grooves 29, the sliding block 32 is slidably connected inside the through grooves 29, one end of the sliding block 32, which is close to the resisting rod 26, is fixedly connected with the clamping block 33, the position of the annular outer surface of the resisting rod 26, which is close to the clamping block 33, is provided with the second annular groove 34, the clamping block 33 is clamped with the second annular groove 34, the position of the annular outer surface of the resisting rod 26, which is located at the lower end of the second annular groove 34, is provided with the third annular groove 314, one end of the sliding block 32, which is far away from the clamping block 33, is fixedly connected with the arc-shaped plate 35, and the outer surface of one side of the arc-shaped plate 35, which is far away from the sliding block 32, is provided with the first inclined groove 36, the arc-shaped plate 35 is connected with the fixed cylinder 27 through a second spring 315, a movable rod 37 is slidably connected inside the first inclined groove 36, and one side of the movable rod 37, which is far away from the first inclined groove 36, is fixedly connected with the movable cylinder 31.

When the tapping device works, because the lower end of the abutting rod 26 extends to the inside of the tapping pin 13, when the first semicircular plate 241 and the second semicircular plate 242 are spliced, the lower end of the abutting rod 26 can be in contact with the snap ring 23, so that the assembly of the fastening plate 24 is influenced, the abutting rod 26 needs to move upwards to avoid being clamped with the snap ring 23 during the assembly, which is very inconvenient, meanwhile, because the abutting rod 26 only abuts against the screw 14 through the elastic force of the first spring 28, the limiting mechanism 3 is lacked to limit the abutting rod 26, so that the screw 14 is easily affected by vibration to loosen and jack the abutting rod 26, and the fastening effect of the fastening mechanism 2 is influenced, in the invention, by arranging the limiting mechanism 3, before the fastening plate 24 is spliced, firstly, the abutting rod 26 is lifted to enable the third annular groove 314 to correspond to the position of the snap block 33, the movable cylinder 31 is rotated clockwise to drive the movable rod 37 to rotate, so that the movable rod 37 slides along the first chute 36, and because the first chute 36 is designed in an inclined structure, when the movable rod 37 rotates, the movable rod will abut against the first inclined groove 36 and drive the arc-shaped plate 35 to move towards the direction close to the abutting rod 26, the sliding block 32 and the clamping block 33 also move along with the sliding block 33 and enable the clamping block 33 to be clamped with the third annular groove 314, so that the abutting rod 26 is limited, after the first semicircular plate 241 and the second semicircular plate 242 are spliced, the movable cylinder 31 is rotated anticlockwise, the sliding block 32 moves towards the direction away from the abutting rod 26 under the elastic force of the second spring 315, the clamping block 33 is separated from the third annular groove 314, the abutting rod 26 moves downwards under the elastic force of the first spring 28 and presses the screw 14, at the moment, the clamping block 33 corresponds to the position of the second annular groove 34, and then the movable cylinder 31 is rotated clockwise to enable the clamping block 33 to be clamped with the second annular groove 34 so as to fix the position of the abutting rod 26, the limiting mechanism 3 is arranged, and the clamping block 33 is clamped with the third annular groove 314 so as to limit the abutting rod 26, the clamping connection between the abutting rod 26 and the clamping ring 23 is prevented when the fastening plate 24 is assembled, so that installation and operation of workers are facilitated, the abutting rod 26 is fixed by the clamping block 33 and the second annular groove 34 in a clamping connection, the screw 14 is prevented from being loosened and jacked up due to the fact that the screw is affected by vibration, and the fastening effect of the fastening mechanism 2 is further enhanced.

As an embodiment of the present invention, as shown in fig. 7, a cross section of one side of the movable rod 37 close to the first inclined groove 36 is designed to be a regular trapezoid, a movable groove 38 is formed at one end of the movable rod 37 close to the first inclined groove 36, a ball 39 is connected to an inside of the movable groove 38 in a rolling manner, the ball 39 is connected to an inner surface side of the first inclined groove 36 in a rolling manner, a hemispherical groove 30 is formed at a position of the ball 39 on the inner surface side of the first inclined groove 36, and the hemispherical groove 30 and the ball 39 are engaged with each other.

When the limiting mechanism works, the movable rod 37 rubs against the first chute 36 when sliding along with the movable barrel 31 in the first chute 36, and the friction force affects the rotation of the movable barrel 31, so that the limiting mechanism 3 is inconvenient for a worker to operate, and in addition, when the limiting mechanism 3 limits the abutting rod 26, the movable rod 37 easily slides relative to the first chute 36, so that the sliding block 32 and the clamping block 33 move, the clamping block 33 is separated from the second annular groove 34 and the third annular groove 314, and the limiting effect of the limiting mechanism 3 on the abutting rod 26 is affected, by arranging the balls 39, the friction force generated when the movable rod 37 slides relative to the first chute 36 is reduced by utilizing the rolling connection between the balls 39 and the first chute 36, the worker can operate the limiting mechanism 3 conveniently, and the hemispherical grooves 30 are clamped with each other through the balls 39, so as to prevent the movable rod 37 and the first inclined groove 36 from sliding relatively, so that the sliding block 32 and the clamping block 33 move, and the clamping block 33 is separated from the second annular groove 34 and the third annular groove 314, thereby ensuring the limiting effect of the limiting mechanism 3 on the abutting rod 26.

As shown in fig. 4 and 6, as an embodiment of the present invention, an elastic clip strip 311 is fixedly connected to a position of an outer side surface of an upper end of the fastening plate 24, which is close to an outer side of the fixed cylinder 27, a first connecting block 312 is fixedly connected to a side of an annular outer surface of the movable cylinder 31, which is close to the elastic clip strip 311, an outer surface of the first connecting block 312, which is far from the movable cylinder 31, is provided with a first clip groove 313, and an upper end of the elastic clip strip 311 is engaged with the first clip groove 313.

During operation, the movable rod 37 is limited only by the mutual clamping of the ball 39 and the hemispherical groove 30, the limiting effect is poor, and the ball 39 and the hemispherical groove 30 are easily separated from each other.

As an embodiment of the present invention, as shown in fig. 1 and 8, two arc-shaped blocks 15 are fixedly connected to the front and rear sides of the annular outer surface of the compressor 12 at the lower end, two second arc-shaped grooves 20 are formed in the annular inner surface of the fastening plate 24 at positions close to the arc-shaped blocks 15, the second arc-shaped grooves 20 and the arc-shaped blocks 15 are attached to each other, and the first semicircular plate 241 and the second semicircular plate 242 are connected by two sets of connecting mechanisms 4.

During operation, after the fastening plate 24 is assembled, the positions of the abutting rods 26 and the tapping pins 13 are required to be ensured to be in one-to-one correspondence, and the fastening plate 24 is positioned due to the lack of a positioning mechanism, so that the assembling work is difficult.

As an embodiment of the present invention, as shown in fig. 9, the connection mechanism 4 includes an elastic clamping plate 41, a second connection block 42, a second locking groove 43, and a second inclined groove 44, a lower end of the elastic clamping plate 41 is fixedly connected to the first semicircular plate 241, one side of an upper end outer surface of the second semicircular plate 242 close to the elastic clamping plate 41 is fixedly connected to the second connection block 42, a second locking groove 43 is formed at an inner center position of the second connection block 42, one side of the elastic clamping plate 41 close to the second connection block 42 is mutually locked with the second locking groove 43, and a corner of an upper end outer surface of the second connection block 42 close to the first semicircular plate 241 is formed with the second inclined groove 44.

When the fastening mechanism 2 works, the fastening plate 24 is fixed only by mutually attaching the abutting rod 26 and the inner surface of the tapping pin 13, the fixing effect is poor, the fastening plate 24 is formed by mutually splicing the first semi-circular plate 241 and the second semi-circular plate 242, the first fixing plate and the second fixing plate are connected without the connecting mechanism 4, the stability of the fastening plate 24 is influenced, and the fastening effect of the fastening mechanism 2 is influenced, the invention strengthens the stability of the fastening plate 24 by arranging the connecting mechanism 4 and realizes the connection between the first semi-circular plate 241 and the second semi-circular plate 242 by mutually clamping the elastic clamping plate 41 and the second clamping groove 43, the fastening effect of the fastening mechanism 2 is further improved, the elastic clamping plate 41 can be mutually contacted with the second inclined groove 44 and generate elastic deformation when the first semi-circular plate 241 and the second semi-circular plate 242 are spliced by arranging the second inclined groove 44, when the elastic clamping plate 41 moves to a position corresponding to the second clamping groove 43, the elastic clamping plate recovers deformation and is clamped with the second clamping groove 43, and the fastening plate 24 is convenient to assemble.

The working principle is as follows: by arranging the fastening mechanism 2, when the fastening mechanism is installed, the fixed base 11 is firstly placed on the inner side of the fixed ring 21, the tapping pin 13 is attached to the first arc-shaped groove 22, the tapping pin 13 is connected with the fixed base plate 1 through the installation screw 14, the compressor 12 is further fixedly connected with the fixed base plate 1, the abutting rod 26 is lifted to enable the third annular groove 314 to correspond to the position of the clamping block 33, the movable cylinder 31 is rotated clockwise to drive the movable rod 37 to rotate, the movable rod 37 slides along the first inclined groove 36, due to the inclined structural design of the first inclined groove 36, the movable rod 37 abuts against the first inclined groove 36 and drives the arc-shaped plate 35 to move towards the abutting rod 26 when rotating, the sliding block 32 and the clamping block 33 also move and enable the clamping block 33 to be clamped with the third annular groove 314, so as to limit the abutting rod 26, then the first semicircular plate 241 and the second semicircular plate 242 are spliced together to form the fastening plate 24, the first annular groove 25 and the snap ring 23 are engaged with each other, the movable barrel 31 is rotated counterclockwise, the slider 32 is moved away from the abutting rod 26 under the elastic force of the second spring 315, the latch 33 is separated from the third annular groove 314, the abutting rod 26 is moved downward under the elastic force of the first spring 28 and abuts against the screw 14, the latch 33 corresponds to the second annular groove 34, and then the movable barrel 31 is rotated clockwise to engage the latch 33 with the second annular groove 34 to fix the position of the abutting rod 26.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two temperature air source heat pump unit, includes PMKD (1), its characterized in that: the outer surface of the upper end of the fixed base plate (1) is fixedly connected with a fixed base (11), the upper end of the fixed base (11) is fixedly connected with a compressor (12), the annular outer surface of the fixed base (11) is fixedly connected with a plurality of tapping pins (13), the tapping pins (13) are fixedly connected with the fixed base plate (1) through screws (14), and the position, located on the outer side of the fixed base (11), of the outer surface of the upper end of the fixed base plate (1) is fixedly connected with a fastening mechanism (2);

the fastening mechanism (2) comprises a fixing ring (21), a first arc-shaped groove (22), a clamping ring (23), a fastening plate (24), a first annular groove (25), a support rod (26), a fixing cylinder (27), a first spring (28), a first semi-circular plate (241) and a second semi-circular plate (242), the lower end of the fixing ring (21) is fixedly connected with the fixing base plate (1), the arc-shaped inner surface of the fixing ring (21) is mutually attached to the fixing base (11), a plurality of first arc-shaped grooves (22) are formed in the positions, close to the tapping pins (13), of the annular inner surface of the fixing ring (21), the first arc-shaped grooves (22) are mutually attached to the tapping pins (13), the clamping ring (23) is fixedly connected to the upper end of the annular outer surface of the fixing ring (21), the fastening plate (24) is connected to the outer surface of the fixing ring (21), the first annular groove (25) is formed in the annular inner surface of the fastening plate (24), first ring channel (25) and snap ring (23) block each other, the laminating of the upper end surface of screw (14) is connected with and supports pole (26), the upper end that supports pole (26) runs through mounting plate (24) and extends to mounting plate (24) upper end, the upper end surface of mounting plate (24) is located the fixed section of thick bamboo (27) of a plurality of position fixedly connected with in support pole (26) outside, support the annular internal surface sliding connection of pole (26) and fixed section of thick bamboo (27), the annular surface of supporting pole (26) has cup jointed first spring (28), the upper end and the support pole (26) fixed connection of first spring (28), the lower extreme and the fixed section of thick bamboo (27) fixed connection of first spring (28), mounting plate (24) are spliced each other by first half plectane (241) and second semicircle board (242) and are constituteed.

2. The dual-temperature air source heat pump unit according to claim 1, characterized in that: the upper end of the annular outer surface of the fixed cylinder (27) is rotatably connected with a limiting mechanism (3) through a bearing;

the limiting mechanism (3) comprises a movable cylinder (31), a sliding block (32), a clamping block (33), a second annular groove (34), an arc-shaped plate (35), a first inclined groove (36), a movable rod (37), a third annular groove (314) and a second spring (315), wherein the annular inner surface of the movable cylinder (31) is rotatably connected with the fixed cylinder (27) through a bearing, the annular outer surface of the fixed cylinder (27) is provided with a plurality of through grooves (29), the inside of each through groove (29) is slidably connected with the sliding block (32), one end, close to the abutting rod (26), of each sliding block (32) is fixedly connected with the clamping block (33), the position, close to the clamping block (33), of the annular outer surface of the abutting rod (26) is provided with the second annular groove (34), the clamping block (33) is mutually clamped with the second annular groove (34), and the position, located at the lower end of the second annular groove (34), of the annular outer surface of the abutting rod (26) is provided with the third annular groove (314), one end fixedly connected with arc (35) of fixture block (33) is kept away from in slider (32), first chute (36) have been seted up to one side surface that slider (32) were kept away from in arc (35), be connected through second spring (315) between arc (35) and fixed cylinder (27), the inside sliding connection of first chute (36) has movable rod (37), one side and movable cylinder (31) fixed connection of first chute (36) are kept away from in movable rod (37).

3. The dual-temperature air source heat pump unit according to claim 2, characterized in that: the utility model discloses a slide rail, including activity pole (37), activity groove (38), the inside roll connection of activity groove (38) has ball (39), ball (39) and the interior surface one side roll connection of first chute (36), hemisphere groove (30) have been seted up to the position that the interior surface one side of first chute (36) is located ball (39), hemisphere groove (30) and ball (39) are anastomotic each other to the transversal trapezoidal structure design of personally submitting in one side that activity pole (37) are close to first chute (36), activity groove (38) have been seted up to the one end that activity groove (37) are close to first chute (36), the inside roll connection of activity groove (38) has ball (39), ball (39) and the interior surface one side roll connection of first chute (36).

4. The dual-temperature air source heat pump unit according to claim 1, characterized in that: the outer limit face in upper end of mounting plate (24) is close to the position fixed connection in the fixed section of thick bamboo (27) outside has elasticity card strip (311), the annular surface of a movable section of thick bamboo (31) is close to the first connecting block (312) of one side fixedly connected with in elasticity card strip (311), first draw-in groove (313) have been seted up to one side surface that a movable section of thick bamboo (31) was kept away from in first connecting block (312), the upper end and the mutual block of first draw-in groove (313) of elasticity card strip (311).

5. The dual-temperature air source heat pump unit according to claim 4, wherein: two arc blocks (15) are fixedly connected to the positions, located at the lower end, of the front side and the rear side of the annular outer surface of the compressor (12), two second arc grooves (20) are formed in the positions, close to the arc blocks (15), of the annular inner surface of the fastening plate (24), the second arc grooves (20) are attached to the arc blocks (15) mutually, and the first semicircular plate (241) and the second semicircular plate (242) are connected through two groups of connecting mechanisms (4).

6. The dual-temperature air source heat pump unit according to claim 5, wherein: coupling mechanism (4) include elastic clamping plate (41), second connecting block (42), second draw-in groove (43) and second chute (44), the lower extreme and first semicircle board (241) fixed connection of elastic clamping plate (41), one side fixedly connected with second connecting block (42) that the upper end surface of second semicircle board (242) is close to elastic clamping plate (41), second draw-in groove (43) have been seted up to the inside central point of second connecting block (42), one side and the mutual block of second draw-in groove (43) that elastic clamping plate (41) are close to second connecting block (42), second chute (44) have been seted up to one side corner that the upper end surface of second connecting block (42) is close to first semicircle board (241).