Fan coil of central air conditioner

Abstract

The utility model discloses a central air-conditioning fan coil, which relates to the technical field of air-conditioning fan coils, and comprises a coil shell, one end of the coil shell is fixedly connected with a double-shaft motor, the output end of the double-shaft motor is fixedly connected with a connecting disc, one side of one end of the coil shell close to the double-shaft motor is fixedly connected with a sleeve, and the other end of the coil shell close to the double-shaft motor is fixedly connected with the connecting disc. And the connecting disc is rotationally connected to the interior of the sleeve, a conveying pipe is fixedly connected between the sleeve and the coil pipe shell, and a transmission block is fixedly connected to one end of the connecting disc. By the adoption of the structure, the installation groove is formed in the shaft rod, the fixing assembly is installed in the installation groove, the fixing assembly is not prone to being lost and convenient and rapid to use, and due to the fact that the installation assembly, the first screw groove and the second screw groove are all located in the sleeve, dust and rust are not prone to being attached to the connecting position, the connecting position can be protected, and the service life is prolonged. And damage to the connecting position is avoided, the service life is prolonged, and therefore the reliability of the fan coil is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air-conditioning fan coils, in particular to a central air-conditioning fan coil. Background Art

[0002] The central air-conditioning fan coil is the terminal product of the central air-conditioning, mainly composed of a low-noise motor, fins and heat exchange coils. It is an air-conditioning terminal system device composed of multiple accessories such as a small fan, a motor and a tube coil. The chilled water or hot water in the coil is exchanged with the hot air in the outdoor pipe to cool or heat the air to adjust the indoor air parameters.

[0003] For example, a Chinese patent with publication number CN217031401U discloses a central air-conditioning fan coil, including a coil housing, two wind wheels are symmetrically arranged on the right side of the coil housing, the input ends of the two wind wheels are connected to a dual-axis motor, the interiors of the two wind wheels are provided with fixed bearings, and conveying members are arranged above the two wind wheels, two mounting blocks are symmetrically arranged inside the conveying members, the interiors of the two mounting blocks are connected to connecting blocks, the outer wall of the connecting block is provided with a filter screen plate, and an activated carbon plate is arranged on the left side of the filter screen plate.

[0004] Although the above-mentioned central air-conditioning fan coil unit has achieved convenient cleaning and avoids blockage that affects the exhaust function, there are still some defects that need to be improved. For example, the wind wheel is a very important component in the fan coil unit. After the wind wheel is used for a long time, the dust in the air will stay in the gap between the impellers. If it is not cleaned in time, the cooling or heating effect of the central air conditioner will be reduced. The current wind wheel and the dual-axis motor are connected by bolts. The bolts are small and easy to lose. During the disassembly and installation process, it is necessary to pay attention to the placement of the bolts. The interface is located on the outside and is easy to accumulate dust and rust, and is also easy to be damaged. Since a sleeve is provided on the outside of the wind wheel, when the wind wheel is rotated to disassemble, the wind wheel may be damaged if it is not careful, which brings great inconvenience to the disassembly of the wind wheel, not only increases the difficulty of maintenance work, but also greatly reduces the frequency and efficiency of wind wheel maintenance, making regular maintenance of the wind wheel extremely difficult. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a central air-conditioning fan coil to solve the problems in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A central air-conditioning fan coil unit comprises a coil housing, one end of the coil housing is fixedly connected to a dual-axis motor, an output end of the dual-axis motor is fixedly connected to a connecting disk, one end of the coil housing close to a side of the dual-axis motor is fixedly connected to a sleeve, the connecting disk is rotatably connected to the inside of the sleeve, a delivery pipe is fixedly connected between the sleeve and the coil housing, one end of the connecting disk is fixedly connected to a transmission block, one side of the transmission block is provided with a first screw groove, the inside of the sleeve is rotatably connected to a shaft rod, the outside of the shaft rod is fixedly connected to a wind wheel, one end of the shaft rod is provided with a transmission groove, the transmission groove is transmission-connected to the transmission block, a second screw groove is provided inside the transmission groove, an installation groove is provided inside the shaft rod, a fixing component is provided inside the installation groove, a socket is provided inside the shaft rod on one side of the installation groove, and the socket is communicated with the installation groove, a blocking component is provided on one side of the socket, and an air outlet is provided on the coil housing at the opposite side of the dual-axis motor.

[0008] As a preferred technical solution, one end of the coil housing is fixedly connected to a liquid inlet pipe, and one end of the coil housing close to the liquid inlet pipe is fixedly connected to a liquid discharge pipe.

[0009] As a preferred technical solution, the fixing assembly includes a slider, which is slidably connected inside the mounting groove, one end of the slider is provided with a force groove, and the other end of the slider is fixedly connected with a screw, which is threadedly connected to the first screw groove and the second screw groove respectively.

[0010] As a preferred technical solution, a first positioning block is fixedly connected to one side of the connecting disk close to the transmission block, a first positioning hole is opened on one side of the shaft close to the transmission groove, and the first positioning block is movably connected to the first positioning hole.

[0011] As a preferred technical solution, the blocking assembly includes a card block, which is clamped on a side of the inside of the jack away from the slider, one end of the card block is fixedly connected to a pull block, and the outer surface of the pull block is fixedly connected to a convex strip.

[0012] As a preferred technical solution, second positioning blocks are fixedly connected on both sides of the pull block near the clamping block, and second positioning holes are opened on both sides of the end of the shaft away from the transmission groove, and the second positioning blocks are movably connected to the second positioning holes.

[0013] As a preferred technical solution, a water receiving box is fixedly connected to the lower end of the coil housing, and a waste liquid pipe is fixedly connected to one end of the water receiving box.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] First, in the utility model, a socket is provided inside the wind wheel connecting shaft, and a screwdriver is inserted into the socket to drive the fixing assembly to move, so that the fixing assembly leaves the first screw groove and the second screw groove. At this time, the cross transmission block and the cross transmission groove can be separated, so that the wind wheel can be taken out of the sleeve, which is convenient for disassembly and maintenance of the wind wheel, reduces the intensity of maintenance work for the staff, and improves the frequency and efficiency of wind wheel maintenance due to simple maintenance;

[0016] Second, in the utility model, a mounting groove is provided in the shaft rod and the fixing assembly is installed in the mounting groove, so that the fixing assembly is not easily lost and can be used conveniently and quickly. Since the mounting assembly, the first screw groove and the second screw groove are also located in the sleeve, the connection is not easy to be attached with dust and rust, and the connection can also be protected to avoid damage to the connection and extend the service life, thereby greatly improving the reliability of the fan coil unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the plugging component and the wind wheel of the utility model;

[0019] Figure 3 It is a schematic diagram of the inner structure of the sleeve of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the shaft rod of the utility model;

[0021] Figure 5 It is a schematic diagram of a partial cross-sectional structure of the shaft rod of the utility model.

[0022] 1. Coil housing; 2. Liquid inlet pipe; 3. Liquid discharge pipe; 4. Air outlet; 5. Dual-axis motor; 6. Sleeve; 7. Delivery pipe; 8. Wind wheel; 9. Connecting plate; 10. Transmission block; 11. First screw groove; 12. Transmission groove; 13. Second screw groove; 14. Shaft; 15. Mounting groove; 16. Fixing assembly; 161. Screw; 162. Sliding block; 163. Force groove; 19. Socket; 20. First positioning block; 21. First positioning hole; 22. Blocking assembly; 221. Block; 222. Pull block; 223. Raised strip; 224. Second positioning block; 225. Second positioning hole; 23. Water collecting box; 24. Waste liquid pipe. DETAILED DESCRIPTION

[0023] Example

[0024] refer to Figures 1 to 5A central air-conditioning fan coil unit described in this embodiment includes a coil housing 1, one end of the coil housing 1 is fixedly connected to a dual-axis motor 5, the output end of the dual-axis motor 5 is fixedly connected to a connecting plate 9, one end of the coil housing 1 is fixedly connected to a sleeve 6 on a side close to the dual-axis motor 5, the connecting plate 9 is rotatably connected to the inside of the sleeve 6, a delivery pipe 7 is fixedly connected between the sleeve 6 and the coil housing 1, and a filter element is slidably connected to one side of the delivery pipe 7, which can block and filter impurities in the air, one end of the connecting plate 9 is fixedly connected to a transmission block 10, one side of the transmission block 10 is provided with a first screw groove 11, the inside of the sleeve 6 is rotatably connected to a shaft rod 14, the outer side of the shaft rod 14 is fixedly connected to a wind wheel 8, one end of the shaft rod 14 is provided with a transmission groove 12, and the transmission groove 12 and the transmission element are connected to the transmission element. The movable block 10 is connected for transmission, a second screw groove 13 is provided inside the transmission groove 12, a mounting groove 15 is provided inside the shaft rod 14, a fixing assembly 16 is provided inside the mounting groove 15, a plug hole 19 is provided inside the shaft rod 14 on one side of the mounting groove 15, and the plug hole 19 is communicated with the mounting groove 15, a blocking assembly 22 is provided on one side of the plug hole 19, an air outlet 4 is provided on the coil housing 1 on the opposite side of the dual-axis motor 5, a protective net is installed in the air outlet 4 to prevent external impurities from entering, after the cross-shaped transmission block 10 is fitted with the cross-shaped transmission groove 12, the shaft rod 14 is connected to the connecting plate 9, the fixing assembly 16 is connected to the first screw groove 11 and the second screw groove 13, so that the wind wheel 8 is fixed to the dual-axis motor 5, and the dual-axis motor 5 can drive the wind wheel 8 to rotate after working.

[0025] refer to Figure 1 One end of the coil shell 1 is fixedly connected to a liquid inlet pipe 2, and one end of the coil shell 1 is fixedly connected to a liquid discharge pipe 3 on the side close to the liquid inlet pipe 2; a heat exchange coil is fixed inside the coil shell 1, and the output end of the heat exchange medium conveying equipment is connected to the liquid inlet pipe 2, and the input end of the medium conveying equipment is connected to the liquid discharge pipe 3, so that the heat exchange medium flows into the heat exchange coil. Since it is a structure in the reference document, it will not be repeated here.

[0026] refer to Figure 5 The fixing component 16 includes a slider 162, which is slidably connected to the inside of the installation groove 15. A force groove 163 is provided at one end of the slider 162, and a screw 161 is fixedly connected to the other end of the slider 162. The screw 161 is threadedly connected to the first screw groove 11 and the second screw groove 13 respectively; by setting the fixing component 16, a flat-head screwdriver is inserted into the force groove 163, and the slider 162 is rotated to make the slider 162 slide in the installation groove 15. The screw 161 connected to the slider 162 is rotated to enter the second screw groove 13 and the first screw groove 11, so that the wind wheel 8 and the connecting plate 9 can be fixed. Since the screw 161 is located in the shaft 14, it will not fall or be lost, and the operation is quick and convenient.

[0027] refer to Figure 3-4A first positioning block 20 is fixedly connected to one side of the connecting disk 9 close to the transmission block 10, and a first positioning hole 21 is opened on the side of the shaft rod 14 close to the transmission groove 12, and the first positioning block 20 is movably connected to the first positioning hole 21; by setting the first positioning block 20 to be inserted into the first positioning hole 21, the shaft rod 14 and the connecting disk 9 can be easily connected.

[0028] refer to Figure 2 The blocking component 22 includes a block 221, which is clamped on the side of the inner part of the socket 19 away from the slider 162. One end of the block 221 is fixedly connected to a pull block 222, and a convex strip 223 is fixedly connected to the outer surface of the pull block 222. The pull block 222 is fixedly connected to a second positioning block 224 on both sides of the end of the pull block 222 close to the block 221. Second positioning holes 225 are opened on both sides of the end of the shaft rod 14 away from the transmission groove 12, and the second positioning block 224 is movably connected to the second positioning hole 225; by setting the blocking component 22, the block 221 is elastic plastic and can be clamped into the socket 19, so that the pull block 222 blocks the socket 19, and the pull block 222 is pulled to quickly remove the block 221 from the socket 19. The convex strip 223 is set to increase the friction resistance and facilitate personnel operation. By setting the second positioning block 224 to be inserted into the second positioning hole 225, the connection between the block 221 and the socket 19 is tighter and more reliable.

[0029] refer to Figure 1 The lower end of the coil housing 1 is fixedly connected to a water receiving box 23, and one end of the water receiving box 23 is fixedly connected to a waste liquid pipe 24; by providing the water receiving box 23 and the waste liquid pipe 24, condensed water can be collected and discharged.

[0030] Principle and advantages of use: Connect the output end of the heat exchange medium conveying device to the liquid inlet pipe 2, and connect the input end of the medium conveying device to the liquid discharge pipe 3, so that the heat exchange medium flows into the heat exchange coil inside the coil housing 1, and the double-axis motor 5 drives the wind wheel 8 in the two sleeves 6 to rotate, so that the air enters the coil housing 1 from the conveying pipe 7 for heat exchange, and is discharged from the air outlet 4 to the room for temperature adjustment. When the wind wheel 8 needs to be disassembled regularly, the pull block 222 drives the card block 221 to move out of the socket 19, insert the screwdriver into the socket 19, rotate the slider 162 in the installation slot 15 to move it, and the screw 16 When leaving the first screw groove 11 and the second screw groove 13, the wind wheel 8 is moved outward, the cross transmission block 10 is separated from the cross transmission groove 12, and the wind wheel 8 is taken out from the sleeve 6, which is convenient for disassembly and maintenance of the wind wheel 8, and improves the frequency and efficiency of maintenance of the wind wheel 8. Since the screw rod 161 is located in the installation groove 15 of the shaft rod 14, it is not easy to lose and is convenient and quick to use. Moreover, since the shaft rod 14, the first screw groove 11, and the second screw groove 13 are located in the sleeve 6, the connection is not easy to adhere to dust and rust, and the connection can also be protected to avoid damage to the connection and extend the service life, thereby greatly improving the reliability of the fan coil unit.

Claims

1. A central air-conditioning fan coil unit, comprising a coil unit housing (1), characterized in that: One end of the coil casing (1) is fixedly connected to a double-shaft motor (5), an output end of the double-shaft motor (5) is fixedly connected to a connection plate (9), one end of the coil casing (1) close to the double-shaft motor (5) is fixedly connected to a sleeve (6), the connection plate (9) is rotatably connected to the inside of the sleeve (6), a delivery pipe (7) is fixedly connected between the sleeve (6) and the coil casing (1), one end of the connection plate (9) is fixedly connected to a transmission block (10), one side of the transmission block (10) is provided with a first screw groove (11), the inside of the sleeve (6) is rotatably connected to a shaft rod (14), and the outside of the shaft rod (14) is fixedly connected to a fan. A wheel (8) is provided at one end of the shaft (14), the transmission groove (12) is transmission-connected to the transmission block (10), a second screw groove (13) is provided inside the transmission groove (12), a mounting groove (15) is provided inside the shaft (14), a fixing assembly (16) is provided inside the mounting groove (15), a plug hole (19) is provided inside the shaft (14) on one side of the mounting groove (15), the plug hole (19) is communicated with the mounting groove (15), a blocking assembly (22) is provided on one side of the plug hole (19), and an air outlet (4) is provided on the coil housing (1) on the opposite side of the dual-axis motor (5).

2. A central air conditioning fan coil unit according to claim 1, characterized in that: One end of the coil casing (1) is fixedly connected to a liquid inlet pipe (2), and one end of the coil casing (1) close to the liquid inlet pipe (2) is fixedly connected to a liquid discharge pipe (3).

3. A central air conditioning fan coil unit according to claim 1, characterized in that: The fixing assembly (16) comprises a slider (162), the slider (162) being slidably connected inside the mounting groove (15), one end of the slider (162) being provided with a force bearing groove (163), the other end of the slider (162) being fixedly connected with a screw rod (161), the screw rod (161) being threadedly connected to the first screw groove (11) and the second screw groove (13) respectively.

4. A central air-conditioning fan coil unit according to claim 1, characterized in that: A first positioning block (20) is fixedly connected to a side of the connecting plate (9) close to the transmission block (10), a first positioning hole (21) is provided on a side of the shaft rod (14) close to the transmission groove (12), and the first positioning block (20) is movably connected to the first positioning hole (21).

5. A central air-conditioning fan coil unit according to claim 3, characterized in that: The blocking assembly (22) comprises a clamping block (221), the clamping block (221) being clamped on a side of the inside of the jack (19) away from the slider (162), one end of the clamping block (221) being fixedly connected to a pull block (222), and the outer surface of the pull block (222) being fixedly connected to a convex strip (223).

6. A central air conditioning fan coil unit according to claim 5, characterized in that: Second positioning blocks (224) are fixedly connected on both sides of one end of the pulling block (222) close to the clamping block (221), and second positioning holes (225) are opened on both sides of one end of the shaft rod (14) away from the transmission groove (12), and the second positioning blocks (224) are movably connected to the second positioning holes (225).

7. A central air-conditioning fan coil unit according to claim 1, characterized in that: The lower end of the coil casing (1) is fixedly connected to a water receiving box (23), and one end of the water receiving box (23) is fixedly connected to a waste liquid pipe (24).

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