CN113758049B

CN113758049B - Double-temperature air source heat pump unit

Info

Publication number: CN113758049B
Application number: CN202110954978.1A
Authority: CN
Inventors: 刘亚超; 杨浩
Original assignee: Hefei Rongshida Solar Energy Co ltd
Current assignee: Hefei Rongshida Solar Energy Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-12-06
Anticipated expiration: 2041-08-19
Also published as: CN113758049A

Abstract

The invention discloses a double-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 fastening mechanism is arranged to prevent the screw from loosening due to vibration generated when the compressor runs, so that the compressor is prevented from shaking, normal running of the heat pump unit is guaranteed, maintenance frequency is reduced, convenience is brought to use of a user, the screw is prevented from loosening and jacking the supporting rod due to vibration, 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.

The chinese patent discloses a heat pump unit, with 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.

Above-mentioned patent is through setting up double-pipe heat exchanger and compressor in the layered structure, the maintenance space of compressor periphery has been increased, in order to dismantle the maintenance operation to the compressor, but because the compressor is the main excitation source in the heat pump set, be one of the main cause of heat pump set product vibration noise damage, above-mentioned patent will be solved the focus and put how convenient and fast to carry out the maintenance operation to the compressor, but ignored the compressor because the vibrations that the during operation produced all kinds of harm that cause, the compressor generally is through screw and PMKD fixed connection, the fixed strength is low, the connection effect is poor, especially to vertical compressor so, in compressor long-term operation, the screw easily receives the influence of vibrations and produces not hard up, make the compressor produce and rock, influence heat pump set's normal operating, the maintenance frequency has been improved, the manpower and materials that the maintenance brought have been increased, bring the inconvenience for user's use.

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 supporting 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 groove is 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 outer surface of the fixing ring is connected with the fastening plate, 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 upper end of the screw is connected with the supporting rod in a laminating mode, the upper end of the supporting rod penetrates through the fastening plate and extends to the upper end of the fastening plate, the upper end of the fastening plate is fixedly connected with a plurality of fixing cylinders outside the supporting rod, the supporting rod is slidably connected with the annular inner surface of the fixing cylinder, the annular outer surface of the supporting rod is connected with the first spring, and the second semicircular plate in a splicing mode.

Because the compressor is the main excitation source in the heat pump unit and is one of the main causes of noise vibration damage of the heat pump unit product, the compressor is generally fixedly connected with the fixed bottom plate through screws, the fixing strength is low, the connecting effect is poor, particularly for a vertical compressor, in the long-term working process of the compressor, the screw is easy to loose under the influence of vibration, so that the compressor shakes to influence the normal operation of the heat pump unit, the maintenance frequency is improved, the manpower and material resources brought by maintenance are increased, and the inconvenience is brought to the use of a user, the fixed base is firstly placed on the inner side of the fixed ring, the tapping pin is mutually attached to the first arc-shaped groove, and the tapping pin is connected with the fixed bottom plate through the mounting screw, so that the compressor is fixedly connected with the fixed bottom plate, then the first semi-circular plate and the second semi-circular plate are spliced to form a fastening plate, the first annular groove and the clamping ring are clamped with each other, the screw rod is pressed by the pressing rod, and the pressing rod is pressed by the elasticity of the first spring, thereby strengthening the pressure of the support rod to the screw, the invention fixes the fastening plate by the mutual clamping of the fastening plate and the snap ring through arranging the fastening mechanism, the fastening plate is limited by the mutual joint 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 jointed so as to strengthen the stability of the connection between the fixed base and the fixed bottom plate, the abutting rod is utilized to abut against the screw so as to prevent the screw from loosening due to the vibration generated when the compressor runs, and then the condition that the compressor shakes occurs, 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.

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 barrel, 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 barrel is rotatably connected with the fixed barrel through a bearing, a plurality of through grooves are formed in the annular outer surface of the fixed barrel, the sliding block is slidably connected inside the through grooves, the sliding block is close to one end of the abutting rod and fixedly connected with the clamping block, the second annular groove is formed in the position, close to the clamping block, of the annular outer surface of the abutting rod and mutually clamped with the second annular groove, the third annular groove is formed in the position, located at the lower end of the second annular groove, of the annular outer surface of the abutting rod, the sliding block is far away from one end of the clamping block and fixedly connected with the arc-shaped plate, the first chute is formed in the outer surface of one side, far away from the sliding block, of the arc-shaped plate, the fixed barrel is connected through the second spring, the movable rod is slidably connected inside the first chute, and one side, far away from the first chute, of the movable rod is fixedly connected with the movable barrel.

When the screw is assembled, the abutting rod is required to move upwards to avoid clamping with the clamping ring, so that the assembly of the fastening plate is affected, the fastening effect of the fastening mechanism is affected, the invention is very inconvenient, meanwhile, the abutting rod is only abutted against the screw through the elastic force of the first spring, the limiting mechanism is lacked to limit the abutting rod, so that the screw is easily affected by vibration to loosen and jack the abutting rod, and the fastening effect of the fastening mechanism is affected, by arranging the limiting mechanism, before the fastening plate is assembled, the abutting rod is firstly lifted to enable the third annular groove to correspond to the position of the clamping block, the movable cylinder is clockwise rotated to drive the movable rod to rotate, so that the movable rod slides along the first chute, because the first chute is designed in an inclined structure, the movable rod abuts against the first chute and drives the arc-shaped plate to move towards the abutting rod, the sliding block and the clamping block move and the clamping block are mutually clamped with the third annular groove, so that the clamping block is mutually limited to the clamping block, the clamping block is fixedly clamped with the second annular groove, and the clamping block is arranged behind the first semicircular plate, so that the clamping block and the clamping block is clamped with the second annular groove, and the clamping block is arranged to be conveniently separated from the second annular groove, and the clamping block, so that the clamping block is arranged in the clamping mechanism, when the clamping block is assembled, the clamping block and the clamping block is carried out, so that the clamping block is arranged in the second annular groove, the clamping mechanism, utilize fixture block and the mutual block of second annular groove to fix the pole that supports, prevent that the screw from taking place owing to receiving the condition that vibrations influence produced not hard up jack-up pole, further strengthened fastening mechanism's fastening effect.

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 with 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, and 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.

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 fastening mechanism 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 the first semicircular plate and the second semicircular 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.

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

the fastening plate is fixed by the fastening plate and the clamping ring which are mutually clamped, the fastening plate is limited by the abutting rod and the inner surface of the tapping pin which are mutually attached, the inner surface of the fastening plate and the fixed base are mutually attached, so that the connection stability between the fixed base and the fixed base plate is enhanced, the abutting rod is used for abutting 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 limiting mechanism which is arranged by clamping the clamping block and the third annular groove, the abutting rod is prevented from being clamped with the clamping ring when the fastening plate is assembled, the installation operation of workers is facilitated, the abutting rod is fixed by the clamping block and the second annular groove, the screw is prevented from being loosened and jacked up due to the influence of the 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 plate of the present invention in combination with a second clip groove.

In the figure: 1. fixing a 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 "coupled" are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections; 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;

fastening device 2 includes solid fixed ring 21, first arc wall 22, snap ring 23, mounting plate 24, first ring channel 25, support rod 26, a fixed section of thick bamboo 27, first spring 28, first semicircle board 241 and second semicircle board 242, solid fixed ring 21's lower extreme and PMKD 1 fixed connection, gu fixed ring 21's arc internal surface laminates with unable adjustment base 11 each other, gu fixed ring 21's annular internal surface is close to the position of attacking tooth round pin 13 and has seted up the first arc wall 22 of a plurality of, first arc wall 22 laminates with attacking tooth round pin 13 each other, gu fixed ring 21's annular surface upper end fixedly connected with snap ring 23, gu fixed ring 21's surface laminating is connected with mounting plate 24, gu fixed ring channel 25 has been seted up to mounting plate 24's annular internal surface, first ring channel 25 and snap ring 23 block each other, the upper end surface laminating of screw 14 is connected with support rod 26, support rod 26's upper end runs through mounting plate 24 and extends to mounting plate 24 upper end, the upper end surface of mounting plate 24 is located the position fixedly connected with a plurality of support rod 26 outside, pole 26 cup joints the fixed ring channel 27 with fixed ring channel 27, first semicircle board 28 is connected with first spring 28 the lower extreme that fixed ring channel 28 is connected with first semicircle board 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 a heat pump unit product, the compressor 12 is generally fixedly connected with the fixing base plate 1 through the screw 14, the fixing strength is low, the connection effect is poor, particularly for a 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 shakes to influence the normal operation of the heat pump unit, the maintenance frequency is improved, manpower and material resources brought by maintenance are increased, inconvenience is brought to a user, the invention arranges the fastening mechanism 2, when in installation, the fixing base 11 is firstly arranged at the inner side of the fixing ring 21, the tapping pin 13 is mutually jointed with the first arc-shaped groove 22, the tapping pin 13 is connected with the fixing base plate 1 through the mounting screw 14, the compressor 12 is fixedly connected with the fixing base plate 1, then the first semi-circular plate 241 is mutually spliced with the second semi-circular plate 242 to form the fixing plate 24, the first annular groove 25 is mutually clamped with the clamping ring 23, the screw is fastened through the clamping rod 26, the fastening rod is fastened through the clamping rod 26, the elastic force of the first spring 28 is applied to the fixing base plate 14, the fixing base plate 14 and the fixing rod 14 is mutually jointed with the fixing base plate 24, the fixing base plate 14, the fixing rod 14, the fixing base plate 14, the fixing plate 14 is pressed to prevent the fixing base plate from shaking to prevent the compressor 12 from shaking, 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 barrel 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 barrel 31 is rotatably connected with the fixed barrel 27 through a bearing, a plurality of through grooves 29 are formed in the annular outer surface of the fixed barrel 27, the sliding block 32 is slidably connected inside the through grooves 29, the clamping block 33 is fixedly connected to one end, close to the abutting rod 26, of the sliding block 32, the second annular groove 34 is formed in the position, close to the clamping block 33, of the annular outer surface of the abutting rod 26, the clamping block 33 is clamped with the second annular groove 34, the third annular groove 314 is formed in the position, at the lower end of the second annular groove 34, of the sliding block 32, far away from the clamping block 33, the arc-shaped plate 35 is fixedly connected with the arc-shaped plate 35, the first inclined groove 36 is formed in the outer surface of one side, far away from the sliding block 32, of the arc-shaped plate 35, the fixed barrel 27 is connected through the second spring 315, the movable rod 37 is slidably connected with the inner portion of the first inclined groove 36, and the movable rod 37 is connected with the fixed barrel 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.

During operation, the movable rod 37 rubs the first inclined groove 36 when sliding along with the movable barrel 31 in the first inclined groove 36, and the friction force affects the rotation of the movable barrel 31, so that the worker is not convenient to operate the limiting mechanism 3, and in addition, when the limiting mechanism 3 limits the abutting rod 26, the movable rod 37 easily slides relative to the first inclined groove 36, so that the sliding block 32 and the latch 33 move, and the latch 33 separates from the second annular groove 34 and the third annular groove 314, so as to affect the limiting effect of the limiting mechanism 3 on the abutting rod 26.

As an embodiment of the present invention, as shown in fig. 4 and 6, an elastic clamping 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 clamping strip 311, a first clamping groove 313 is formed in an outer surface of the first connecting block 312, which is far from the movable cylinder 31, and an upper end of the elastic clamping strip 311 is mutually clamped with the first clamping 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.

During operation, 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 not connected by the connecting mechanism 4, the stability of the fastening plate 24 is affected, and the fastening effect of the fastening mechanism 2 is affected.

The working principle is as follows: by arranging the fastening mechanism 2, during installation, the fixed base 11 is firstly placed on the inner side of the fixed ring 21, the tapping pin 13 and the first arc-shaped groove 22 are attached to each other, the tapping pin 13 is connected with the fixed base plate 1 through the mounting 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 and the fixture block 33 to correspond to each other, 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 fixture block 33 move along with the movable cylinder 33, the fixture block 33 and the third annular groove 314 are engaged with each other, the abutting rod 26 is limited, then the first semi-circular plate 241 and the second semi-circular plate 242 are mutually spliced to form the fastening plate 24, the first annular groove 25 and the clamp ring 23 are engaged with each other, then the movable cylinder 31 is rotated counterclockwise, the sliding block 32 and the second semi-circular plate 242 is separated from the fixture block 33 under the action of the elastic force of the second spring 315, and the first annular groove 34 and the second annular groove 34 and the fixture block 33 and the first annular groove 34 and then the second annular groove 34 and the second annular groove 34 are pressed downwards.

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 supporting rod (26), a fixing barrel (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 attached to the fixing base (11), a plurality of first arc-shaped grooves (22) are formed in the position, close to the tapping pin (13), of the annular inner surface of the fixing ring (21), the first arc-shaped grooves (22) are attached to the tapping pin (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 attached 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), the first annular groove (25) is connected with the clamping ring (23) in a clamping ring, the outer surface of the upper end of the fastening rod (14) is connected with the fastening rod (26), the upper end of the fastening plate (26) extends through the fixing barrel (24), and the supporting rod (27), and the supporting rod (24) extends to the outer end of the fixing barrel (24), the fastening device comprises a supporting rod (26) and a fixing barrel (27), wherein the supporting rod is connected with the annular inner surface of the fixing barrel (27) in a sliding mode, a first spring (28) is sleeved on the annular outer surface of the supporting rod (26), the upper end of the first spring (28) is fixedly connected with the supporting rod (26), the lower end of the first spring (28) is fixedly connected with the fixing barrel (27), and a fastening plate (24) is formed by mutually splicing a first semi-circular plate (241) and a second semi-circular plate (242).

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 the sliding block (32) is fixedly connected with the clamping block (33), the second annular groove (34) is arranged at the position, close to the clamping block (33), of the annular outer surface of the abutting rod (26), the third annular groove (314) is arranged at the position, at the lower end, close to the clamping block (33), of the sliding block (32), the arc-shaped plate (35) is fixedly connected with the arc-shaped plate (35) at one end, far away from the sliding block (32), the outer surface of the first annular groove (36) is connected with the second spring (27), the inside sliding connection of first chute (36) has movable rod (37), one side and the activity section of thick bamboo (31) fixed connection that first chute (36) are kept away from to 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 2, 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).