Fan coil convenient to maintain

Abstract

The invention relates to the technical field of fan coils, in particular to a fan coil convenient to maintain, which comprises an outer frame, a lower exhaust hood and a coil body clamped between the outer frame and the lower exhaust hood, two groups of symmetrically distributed hanger plates are arranged on the outer frame, and circular plate clamping grooves are formed in the bottom surfaces of the two ends of each hanger plate. A hoisting rod is rotationally mounted on the coil pipe main body, a semicircular clamping plate matched with the circular plate clamping groove is arranged at the top end of the hoisting rod, and the two ends of the coil pipe main body are centrally symmetrically communicated with first joints; after the lifting plate loses the lifting effect on the coil pipe body, the coil pipe body can slide down from the outer frame, then the exposed first connector can be communicated with external high-speed water flow, scale in the coil pipe body can be washed and maintained, and after the coil pipe body is washed and maintained, the coil pipe body can be separated from the outer frame. The process is reversely operated to restore the matching state among the outer frame, the lower exhaust hood and the coil pipe body, and the process is simple and convenient in operation process and high in operation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of fan coil units, in particular to a fan coil unit which is easy to maintain. Background Art

[0002] The fan coil unit is referred to as a fan coil. It is one of the terminal devices of the air conditioning system, which consists of a small fan, a motor and a coil (air heat exchanger). When chilled water or hot water flows through the coil tube, it exchanges heat with the air outside the tube, so that the air is cooled, dehumidified or heated to adjust the indoor air parameters. It is a commonly used cooling and heating terminal device.

[0003] In the current prior art, after a fan coil unit is used for a long time, a certain amount of scale will accumulate on the inner wall of the coil tube. The formation of this scale will cause the liquid flow rate in the coil tube to decrease, thereby affecting the overall heat exchange efficiency of the fan coil unit. The scale needs to be flushed out under the action of high-speed water flow, but the air-conditioning system cannot provide the high-speed water flow for cleaning the inner wall of the coil unit. In addition, after the fan coil unit as a whole is installed with the terminal cover of the air-conditioning system, the overall disassembly process is relatively troublesome, and the conventional maintenance method of flushing the external wind cover cannot clean and maintain the inner wall of the coil unit.

[0004] Therefore, in view of the above problems, a fan coil unit which is easy to maintain is proposed. Summary of the invention

[0005] In order to make up for the shortcomings of the existing technology and solve the problem that the formation of scale will cause the liquid flow rate in the coil to decrease, thereby affecting the overall heat exchange efficiency of the fan coil, the scale needs to be flushed and discharged under the action of high-speed water flow, but the air-conditioning system cannot provide the high-speed water flow for cleaning the inner wall of the coil. In addition, after the fan coil as a whole and the end cover of the air-conditioning system are installed with each other, the overall disassembly process is more troublesome, and the conventional maintenance method of flushing the external wind cover cannot clean and maintain the inner wall of the coil. A fan coil that is easy to maintain is proposed.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the fan coil unit that is easy to maintain described in the present invention comprises an outer frame, a lower exhaust hood and a coil unit body clamped between the frames, the outer frame is provided with two sets of symmetrically distributed hanging plates, the bottom surfaces of both ends of the hanging plates are provided with circular plate clamping grooves, a hanging rod is rotatably installed on the coil unit body, and a semicircular clamping plate that matches the circular plate clamping groove is provided at the top of the hanging rod; The two ends of the coil body are centrally symmetrically connected with a first joint, and a joint slot is provided inside the first joint; Both ends of the coil body are equipped with a pipe connection mechanism, the pipe connection mechanism includes a sliding guide tube slidably installed in the first joint pipe passage, the outer wall of the sliding guide tube is fixedly connected with a slide plate, and the slide plate is slidably installed between the inner walls of the joint slot; A second joint for water supply and drainage is symmetrically installed outside the coil body, and the second joint is slidably connected to the first joint; Control mechanisms are installed at both ends of the coil body. The control mechanisms include supporting side plates clamped on both sides of the first joint. A linkage plate is fixed to the bottom surface of the supporting side plate. One end of the linkage plate is linked to the hanging rod.

[0007] Preferably, a semicircular baffle is fixedly connected to the inner wall of the circular plate slot, a semicircular clamp is fixedly connected to one end of the hoisting rod, the semicircular clamp is clamped inside the circular plate slot, and the bottom surface of the semicircular clamp is in contact with the top surface of the semicircular baffle; The outer wall of the sliding guide tube is sleeved with a first spring, which is fixedly connected to the side wall of the slide plate close to the second joint. The side wall of the slide plate away from the second joint is symmetrically fixedly connected with a contact roller through a bracket, and the contact roller is linked to the control mechanism.

[0008] Preferably, adjacent side walls of the two supporting side plates are provided with supporting slots, and the supporting slots are clamped with each other below the contact ends of the first joint and the second joint, and the side walls of the two supporting side plates are connected with control racks, and a central gear is meshed and installed between the two control racks, and the central gear is fixedly connected to the center of the bottom surface of the first joint, and the two control racks are rotationally symmetrical along the axis of the central gear, and a rack hanging block is slidably clamped between the inner walls of the side rails of the two control racks, and the rack hanging block is fixedly connected to the bottom surface of the first joint, and the ends away from the two control racks are vertically fixed with the supporting side plates, and the end of the supporting side plate close to the second joint is fixed with a side plate block, and the bottom surface of the side plate block contacts with the limit block fixed to the side wall of the second joint, and the outside of the second joint is fixedly connected to a limit seat, and the limit seat is slidably connected to the first joint.

[0009] Preferably, a through-hole bracket on the top surface of the side wall of the supporting side plate is fixedly connected with an inclined surface stopper, and the inclined surface of the inclined surface stopper contacts the outer wall of the contact roller.

[0010] Preferably, the two control racks are fixed with linkage plates through brackets at the bottom surfaces away from the ends, and one end of the two linkage plates is provided with a sandwich circular plate. The center of the top surface of the two sandwich circular plates is fixed to one end of two lifting rods through support rods respectively, and the axis center of the lifting rod coincides with the axis center of the sandwich circular plate.

[0011] Preferably, the inner wall of the sandwich circular plate is symmetrically provided with arc-shaped grooves, one end of which coincides with the inner center of the sandwich circular plate, and the other end of which is close to the outer wall edge of the sandwich circular plate, and the arc-shaped groove fits with the outer wall of the shaft rod at one end of the linkage plate.

[0012] Preferably, a positioning bracket is installed at the center of the bottom surface of the two sandwich circular plates through a bearing, and one end of the positioning bracket is vertically fixed to the end wall of the coil body.

[0013] Preferably, a plurality of handle frames are fixedly connected to the side wall of the coil body, and two adjacent handle frames are symmetrically fixedly connected to two sides of the positioning bracket.

[0014] Preferably, an adjustment handle is installed between the bottom surfaces of two adjacent sandwich circular plates via a bracket, and two ends of the adjustment handle are respectively fitted with grooves at one end of two groups of positioning brackets on the same side.

[0015] Preferably, a baffle slot is opened in the center of the side wall of the second joint, an L-shaped baffle is clamped inside the baffle slot, the inner wall of the side wall through hole of the L-shaped baffle coincides with the inner wall of the pipe through hole of the second interface, one end of the L-shaped baffle is fixedly connected to a second spring, and one end of the second spring is fixedly connected to the top surface of the baffle slot.

[0016] Beneficial effects of the present invention: 1. When the heat exchange efficiency of the fan coil is low and cannot be improved by cleaning the external hood, first remove the lower exhaust hood from the opening below the outer frame. At this time, the coil body and the adjustment handle are completely exposed. Then, pull the adjustment handle outward and rotate it until its two ends are clamped with another handle frame. During this process, the lifting rod and the control mechanism simultaneously rotate half a circle. At the same time, the supporting side plate is disengaged from the first joint and the second joint, and the semicircular clamping plate is disengaged from the semicircular baffle. At this time, the hanging plate loses its lifting effect on the entire device, and the coil body can slide off the outer frame and the lower exhaust hood. Then, the exposed first joint can be connected to the external high-speed water flow to flush and maintain the scale in the coil body tube. After flushing and maintaining the coil body, the above process is reversed to restore the coordination between the outer frame, the lower exhaust hood and the coil body. The process is simple in operation and has high operating efficiency.

[0017] 2. The first joint and the second joint are disassembled and assembled by sliding up and down. During the process of disassembling the coil body as a whole by rotating the adjusting handle, the inclined blocks that are away from each other cancel the squeezing force on the first spring. At this time, under the elastic force of the first spring, the sliding guide tube as a whole shrinks to one end of which can be completely hidden in the first joint, thereby ensuring that the first spring for connecting the pipes between the first joint and the second joint hinders the disassembly process of the coil body.

[0018] 3. When the coil body and the first joint slide down as a whole to the second joint and disengage, the L-shaped baffle in the baffle slot loses its upward squeezing force. With the elastic force provided by the second spring, the L-shaped baffle side plate can block the pipe opening of the second joint to prevent liquid leakage in the air-conditioning system when the coil body is cleaned with external water. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 is a stereogram of the present invention; Figure 2 It is a partially enlarged stereoscopic view of the outer frame and the hanging plate of the present invention; Figure 3 is a stereoscopic diagram of the cooperation between the coil body and the second joint in the present invention; Figure 4 It is a three-dimensional diagram of the partial structure of the coil body in the present invention when viewed from above; Figure 5 It is a three-dimensional diagram of the linkage between the hanging rod and the adjusting handle in the present invention; Figure 6 is a partially cutaway perspective view of the first joint in the present invention; Figure 7 It is a three-dimensional diagram of the connecting pipe mechanism in the present invention; Figure 8 is a three-dimensional diagram of the control mechanism of the present invention; Fig. 9 It is a partially cutaway stereoscopic view of the second joint in the present invention.

[0020] Legend: 1. Outer frame; 2. Lower exhaust hood; 3. Coil body; 4. Hanging plate; 5. Connecting pipe mechanism; 6. Second joint; 7. Lifting rod; 8. Control mechanism; 9. Adjustment handle; 10. L-shaped baffle; 31. first joint; 32. joint slot; 33. positioning bracket; 34. handle frame; 35. circular slot; Circular plate slot; 42, semicircular baffle; Sliding guide tube; 52, sliding plate; 53, first spring; 54, contact roller; Limiting card seat; 62, limiting card block; 63, baffle card slot; Semicircular card plate; 72, sandwich circular plate; 73, arc-shaped card slot; Central gear; 82, control rack; 83, rack hoisting block; 84, supporting side plate; 85, supporting slot; 86, side plate block; 87, inclined stopper; 88, linkage plate; 101. Second spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Specific examples are given below.

[0023] See also Figure 1 - Fig. 9 The present invention provides a coil body 3 including an outer frame 1, a lower exhaust hood 2 and a coil body 3 clamped between the frames, the outer frame 1 is provided with two sets of symmetrically distributed hanging plates 4, the bottom surfaces of both ends of the hanging plates 4 are provided with circular plate clamping grooves 41, a hanging rod 7 is rotatably installed on the coil body 3, and a semicircular clamping plate 71 matching the circular plate clamping groove 41 is provided at the top of the hanging rod 7; The two ends of the coil body 3 are symmetrically connected with a first joint 31, and a joint slot 32 is provided inside the first joint 31; See also Figure 1 , Figure 4 and Figure 6 The outer frame 1 is fixed in the air conditioning system shell, and the lower exhaust hood 2 plays a role of wind guide for the opening below it. When the heat exchange efficiency of the coil body 3 is reduced to a level that cannot be improved by cleaning the external exhaust hood, the coil body 3 is removed separately and the scale in the pipe is cleaned. The first joint 31 is a structure for accessing or contacting the water flow in the coil body 3, and is connected to the water circulation structure in the air conditioning system through its pipeline; Both ends of the coil body 3 are equipped with a pipe connecting mechanism 5, which includes a sliding guide tube 51 slidably installed in the pipe passage of the first joint 31, and a slide plate 52 is fixedly connected to the outer wall of the sliding guide tube 51, and the slide plate 52 is slidably installed between the inner walls of the joint slot 32; A second joint 6 for water supply and drainage is symmetrically installed outside the coil body 3, and the second joint 6 is slidably connected to the first joint 31; Control mechanisms 8 are installed at both ends of the coil body 3. The control mechanism 8 includes supporting side plates 84 clamped on both sides of the first joint 31. The bottom surface of the supporting side plates 84 is fixedly connected with a linkage plate 88. One end of the linkage plate 88 is linked to the hanging rod 7.

[0024] Further, such as Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a semicircular baffle 42 is fixedly connected to the inner wall of the circular plate slot 41, and a semicircular clamping plate 71 is fixedly connected to one end of the hanging rod 7. The semicircular clamping plate 71 is clamped inside the circular plate slot 41, and the bottom surface of the semicircular clamping plate 71 contacts the top surface of the semicircular baffle 42; The hanging plate 4 is engaged with the bottom surface of the semicircular clamping plate 71 fixed on one end of the hanging rod 7 through the contact engagement of the semicircular baffle plate 42 on the inner wall of the circular plate slot 41 and the semicircular clamping plate 71 fixed on one end of the hanging rod 7, so as to realize the mutual hanging between the hanging plate 4 and the hanging rod 7, and the hanging rod 7 is clamped on the top of the coil body 3 through the circular slot 35. At this time, the hanging plate 4 hangs and fixes the coil body 3. When the coil body 3 needs to be disassembled, the hanging rod 7 is rotated in the lower half of the circle with the cooperation of the parts belonging to the control mechanism 8, so that the semicircular clamping plate 71 is separated from the semicircular baffle plate 42. At this time, the hanging plate 4 loses its hanging effect on the coil body 3 and the hanging rod 7 as a whole, and the coil body 3 can be separated from the outer frame 1 and the lower exhaust hood 2. The outer wall of the sliding guide tube 51 is sleeved with a first spring 53, which is fixedly connected to the side wall of the slide plate 52 close to the second joint 6. The side wall of the slide plate 52 away from the second joint 6 is symmetrically fixedly connected with a contact roller 54 through a bracket, and the contact roller 54 is linked to the control mechanism 8.

[0025] The sliding guide tube 51 is slidably installed between the inner walls of the joint groove 32 with the cooperation of the slide plate 52, and can have an elastic force to connect with the second joint 6 under the elastic force provided by the first spring 53, and ensure the tightness of the joint after the first joint 31 and the second joint 6 are connected with each other under the cooperation of the interference fit of the sliding guide tube 51. When the coil body 3 needs to be disassembled, the contact roller 54 and the control mechanism 8 need to cooperate to provide a contraction force for the first spring 53, and make the sliding guide tube 51 completely hidden in the circular groove 35, so that the connecting pipe mechanism 5 will not cause structural obstacles during the disassembly of the coil body 3.

[0026] Further, such as Figure 4 and Figure 8 As shown, the adjacent side walls of the two supporting side plates 84 are provided with supporting slots 85, and the supporting slots 85 are clamped with each other below the contact end of the first joint 31 and the second joint 6. The side walls of the two supporting side plates 84 are connected with control racks 82, and a central gear 81 is meshed and installed between the two control racks 82. The central gear 81 is fixedly connected to the center of the bottom surface of the first joint 31. The two control racks 82 are rotationally symmetrical along the axis of the central gear 81. A rack hanging block 83 is slidably clamped between the inner walls of the side rails of the two control racks 82. The rack hanging block 83 is fixedly connected to the bottom surface of the first joint 31. The ends away from the two control racks 82 are vertically fixed with the supporting side plates 84. The end of the supporting side plates 84 close to the second joint 6 is fixed with a side plate block 86, and the bottom surface of the side plate block 86 contacts with the limit block 62. The outside of the second joint 6 is fixedly connected to the limit holder 61, and the limit holder 61 is slidably connected to the first joint 31.

[0027] Under the linkage action of the central gear 81, the two control racks 82 can only perform synchronous and reverse displacement movements, wherein the rack lifting block 83 realizes the lifting effect of the first joint 31 on the control rack 82 without hindering the movement, and then realizes the lifting effect on the control mechanism 8 as a whole. When the supporting side plate 84 at one end of the control rack 82 is engaged with the first joint 31 and the lower part of the second joint 6 through the supporting slot 85, the side plate block 86 is docked with the limit block 62, causing an obstacle to the up and down displacement. At this time, the coil body 3 cannot move downward as a whole. When the coil body 3 needs to be disassembled, it is necessary to provide a force for the control rack 82 to move away from each other until the supporting slot 85, the side plate block 86 are disengaged from the first joint 31, the second joint 6 and the limit block 62. Only then can the coil body 3 move downward as a whole, and the second joint 6 limits the upper limit of the coil body 3 through the mutual engagement of its upper limit seat 61 with the outer wall above the first joint 31.

[0028] Further, such as Figure 6 As shown, a through-hole bracket on the top surface of the side wall of the supporting side plate 84 is fixedly connected with an inclined surface stopper 87 , and the inclined surface of the inclined surface stopper 87 contacts the outer wall of the contact roller 54 .

[0029] When the supporting side plates 84 on both sides are squeezed against each other to the limit, the slope of the inclined surface of the inclined surface block 87 comes into contact with the contact roller 54. At this time, the first spring 53 contracts, and the sliding guide tube 51 is connected to the second joint 6 pipeline. When the coil body 3 is disassembled, the supporting side plates 84 on both sides move away from each other. At this time, the inclined surface block 87 loses the squeezing force on the contact roller 54, and the sliding guide tube 51 and the slide plate 52 as a whole move away from the second joint 6 under the elastic force of the first spring 53. At this time, the sliding guide tube 51 is completely contracted and will not hinder the disassembly of the first joint 31 and the second joint 6.

[0030] Further, such as Figure 4 and Figure 8 As shown, the two control racks 82 are fixedly connected to the linkage plates 88 through the bracket at the bottom surfaces away from the ends, and one end of the two linkage plates 88 is provided with a sandwich circular plate 72. The centers of the top surfaces of the two sandwich circular plates 72 are fixedly connected to one end of the two lifting rods 7 through support rods respectively, and the axis of the lifting rod 7 coincides with the axis of the sandwich circular plate 72. The inner wall of the sandwich circular plate 72 is symmetrically provided with arc grooves 73, one end of the arc grooves 73 coincides with the inner center of the sandwich circular plate 72, and the other end of the arc grooves 73 is close to the outer wall edge of the sandwich circular plate 72. The arc grooves 73 fit with the outer wall of the shaft rod at one end of the linkage plate 88, and a positioning bracket 33 is installed at the center of the bottom surfaces of the two sandwich circular plates 72 through a bearing, and one end of the positioning bracket 33 is vertically fixed to the end wall of the coil body 3.

[0031] The sandwich circular plate 72 is formed into a whole with the cooperation of the lifting rod 7 and the positioning bracket 33, and can rotate synchronously. The sandwich circular plate 72 slides and fits with one end of the linkage plate 88 fixed on the control rack 82 through the arc groove 73 thereon. When the rotating lifting rod 7 as a whole reaches one end of the linkage plate 88 and coincides with the end of the arc groove 73 near its center, the two control racks 82 move away from each other, and the coil body 3 can be disassembled at this time. When the rotating lifting rod 7 reaches one end of the linkage plate 88 and coincides with the end of the arc groove 73 near its periphery, the two control racks 82 move closer to each other, and the control mechanism 8 restores the limiting support function between the first joint 31 and the second joint 6.

[0032] Further, such as Figure 3 , Figure 4 and Figure 5 As shown, a plurality of handle frames 34 are fixedly connected to the side wall of the coil body 3, two adjacent handle frames are symmetrically fixedly connected to the two sides of the positioning bracket 33, and an adjustment handle 9 is installed between the bottom surfaces of two adjacent sandwich circular plates 72 through a bracket, and the two ends of the adjustment handle 9 are respectively fitted with the grooves at one end of the two groups of positioning brackets 33 on the same side.

[0033] Pull the rotation adjustment handle 9 outward until its rotation axis is engaged with another handle frame 34. During this process, the hanging rod 7 and the control mechanism 8 synchronously rotate half a circle, and the positioning brackets 33 on both sides can limit the position of the half circle rotation.

[0034] Further, such as Fig. 9 As shown, a baffle slot 63 is opened in the center of the side wall of the second joint 6, and an L-shaped baffle 10 is clamped inside the baffle slot 63. The inner wall of the side wall through hole of the L-shaped baffle 10 coincides with the inner wall of the pipe through hole of the second interface, and one end of the L-shaped baffle 10 is fixedly connected to a second spring 101, and one end of the second spring 101 is fixedly connected to the top surface of the baffle slot 63.

[0035] When the coil body 3 and the first joint 31 slide down as a whole to disengage from the second joint 6, the L-shaped baffle 10 in the baffle slot 63 loses its upward squeezing force, and with the elastic force provided by the second spring 101, the side plate of the L-shaped baffle 10 can block the pipe opening of the second joint 6 to prevent liquid leakage in the air-conditioning system when the coil body 3 is cleaned with external water.

[0036] Working principle: when the coil body 3 needs to be disassembled, first move the lower exhaust hood 2 out from under the outer frame 1. At this time, the coil body 3 and the control mechanism 8 are completely exposed. Then fill the support under the coil body 3 to stably support the coil body 3 during the disassembly process, while reducing the friction between the semicircular baffle 42 and the semicircular clamping plate 71 to reduce the friction resistance during the overall rotation of the hanging rod 7. Then pull out and rotate the adjustment handle 9 half a circle, so that the rotating shafts at both ends are engaged with the end surface grooves of the other handle frame 34. At this time, the hanging rod 7 has undergone a half-circle rotation as a whole, and the semicircular clamping plate 71 and the semicircular baffle 42 no longer have structural problems. The lifting rod 7 can be completely separated from the circular plate slot 41, and the lifting plate 4 loses the lifting effect on the coil body 3. At this time, the filler under the coil body 3 is removed, and the coil body 3 can gradually move down to completely separate from the outer frame 1. In the process of rotating the adjustment handle 9, the sandwich circular plate 72 performs a synchronous half-circle rotation, and one end of the linkage plate 88 moves from the end of the arc-shaped slot 73 close to the outer periphery of the sandwich circular plate 72 to the end close to the center, so that the two linkage plates 88 and the control rack 82 and the supporting side plate 84 linked thereto move outward synchronously, and the supporting side plate 84 is connected to the first joint 31 and the second joint through the supporting slot 85 and the side plate block 86. 6 and the limit block 62 are engaged and supported, so that the control mechanism 8 as a whole loses the function of limiting the first joint 31 and the second joint 6, and in this process, the inclined block 87 gradually loses the squeezing force on the contact roller 54, so that the sliding guide 51 and the slide plate 52 as a whole move away from the position of the second joint 6 under the elastic force of the first spring 53, and move until the sliding guide 51 is completely hidden in the inner wall of the first joint 31 pipe passage, so that when the filler under the coil body 3 is removed, the sliding guide 51 used for docking will not hinder the overall sliding of the coil body 3, and during the overall sliding of the coil body 3, the baffle card slot 6 3, the L-shaped baffle 10 loses the upward extrusion force. Under the cooperation of the elastic force provided by the second spring 101, the side plate of the L-shaped baffle 10 can cover the pipe opening of the second joint 6, and after it is separated from the lower exhaust hood 2, the external high-flow rate water pipe is connected to it to clean the scale in the pipe. After the scale in the pipe of the coil body 3 is cleaned, the coil body 3 is pushed up as a whole from the bottom until the upper outer wall of the first joint 31 is connected to the limit clamping seat 61, and the above steps are reversed. While the hanging plate 4 resumes the hanging function on the coil body 3, the pipe connecting mechanism 5 can also ensure the stable connection of the pipe between the first joint 31 and the second joint 6.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A fan coil unit that is easy to maintain, comprising an outer frame (1), a lower exhaust hood (2) and a coil unit body (3) clamped between the frames, wherein the outer frame (1) is provided with two sets of symmetrically distributed hanging plates (4), characterized in that: The bottom surfaces of both ends of the hanging plate (4) are provided with circular plate slots (41); a hanging rod (7) is rotatably mounted on the coil body (3); and a semicircular clip (71) matching the circular plate slots (41) is provided at the top of the hanging rod (7); The two ends of the coil body (3) are centrally symmetrically connected with first joints (31), and a joint slot (32) is provided inside the first joint (31); Both ends of the coil body (3) are provided with a pipe connection mechanism (5), the pipe connection mechanism (5) comprising a sliding guide tube (51) slidably mounted in the pipe passage of the first joint (31), a slide plate (52) being fixedly connected to the outer wall of the sliding guide tube (51), and the slide plate (52) being slidably mounted between the inner walls of the joint slot (32); A second joint (6) for water supply and drainage is symmetrically mounted outside the coil body (3), and the second joint (6) is slidably connected to the first joint (31); Control mechanisms (8) are installed at both ends of the coil body (3), and the control mechanism (8) includes supporting side plates (84) clamped on both sides of the first joint (31), and the bottom surface of the supporting side plate (84) is fixedly connected to a linkage plate (88), and one end of the linkage plate (88) is linked to the hanging rod (7).

2. The fan coil unit that is easy to maintain according to claim 1 is characterized in that: A semicircular baffle (42) is fixedly connected to the inner wall of the circular plate slot (41), and a semicircular clamping plate (71) is fixedly connected to one end of the hanging rod (7). The semicircular clamping plate (71) is clamped inside the circular plate slot (41), and the bottom surface of the semicircular clamping plate (71) contacts the top surface of the semicircular baffle (42); The outer wall of the sliding guide tube (51) is sleeved with a first spring (53), the first spring (53) being fixedly connected to the side wall of the sliding plate (52) close to the second joint (6), and the side wall of the sliding plate (52) away from the second joint (6) being symmetrically fixedly connected to a contact roller (54) via a bracket, the contact roller (54) being linked to the control mechanism (8).

3. The fan coil unit that is easy to maintain according to claim 2 is characterized in that: The adjacent side walls of the two supporting side plates (84) are each provided with a supporting slot (85), the supporting slot (85) being mutually clamped with the lower part of the contact end of the first joint (31) and the second joint (6), the side walls of the two supporting side plates (84) are both butted with a control rack (82), a central gear (81) is meshedly mounted between the two control racks (82), the central gear (81) is fixedly connected to the center of the bottom surface of the first joint (31), the two control racks (82) are rotationally symmetrical along the axis of the central gear (81), and the side rails of the two control racks (82) are A rack hanging block (83) is slidably mounted between the inner walls, the rack hanging block (83) is fixedly connected to the bottom surface of the first joint (31), the ends away from the two control racks (82) are vertically fixedly connected to supporting side plates (84), the end of the supporting side plate (84) close to the second joint (6) is fixedly connected to a side plate clamping block (86), the bottom surface of the side plate clamping block (86) is in contact with a limit clamping block (62) fixedly connected to the side wall of the second joint (6), the outside of the second joint (6) is fixedly connected to a limit clamping seat (61), and the limit clamping seat (61) is slidably docked with the first joint (31).

4. The fan coil unit that is easy to maintain according to claim 3 is characterized in that: A through-hole bracket on the top surface of the side wall of the supporting side plate (84) is fixedly connected with an inclined surface stopper (87), and the inclined surface of the inclined surface stopper (87) contacts the outer wall of the contact roller (54).

5. The fan coil unit that is easy to maintain according to claim 4 is characterized in that: A sandwich circular plate (72) is provided at one end of each of the two linkage plates (88); the centers of the top surfaces of the two sandwich circular plates (72) are fixedly connected to one end of two hanging rods (7) via support rods, respectively; and the axis of the hanging rod (7) coincides with the axis of the sandwich circular plate (72).

6. The fan coil unit that is easy to maintain according to claim 5, characterized in that: The inner wall of the sandwich circular plate (72) is symmetrically provided with arc-shaped slots (73), one end of the arc-shaped slot (73) coincides with the inner center of the sandwich circular plate (72), the other end of the arc-shaped slot (73) is close to the outer wall edge of the sandwich circular plate (72), and the arc-shaped slot (73) fits with the outer wall of the shaft rod at one end of the linkage plate (88).

7. The fan coil unit that is easy to maintain according to claim 6 is characterized in that: A positioning bracket (33) is installed at the center of the bottom surface of the two x sandwich circular plates (72) via a bearing, and one end of the positioning bracket (33) is vertically fixed to the end wall of the coil body (3).

8. The fan coil unit that is easy to maintain according to claim 7, characterized in that: A plurality of handle frames (34) are fixedly connected to the side wall of the coil body (3), and two adjacent handle frames are symmetrically fixedly connected to the two sides of the positioning bracket (33).

9. The fan coil unit that is easy to maintain according to claim 8, characterized in that: An adjustment handle (9) is installed between the bottom surfaces of two adjacent sandwich circular plates (72) via a bracket, and two ends of the adjustment handle (9) are respectively fitted with grooves at one end of two sets of positioning brackets (33) on the same side.

10. The fan coil unit that is easy to maintain according to claim 1, characterized in that: A baffle plate slot (63) is provided at the centre of the side wall of the second joint (6), an L-shaped baffle plate (10) is clamped inside the baffle plate slot (63), the inner wall of the side wall through hole of the L-shaped baffle plate (10) coincides with the inner wall of the pipe through hole of the second interface, a second spring (101) is fixedly connected to one end of the L-shaped baffle plate (10), and one end of the second spring (101) is fixedly connected to the top surface of the baffle plate slot (63).

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