Fan coil with filter screen convenient to replace for heating and ventilation engineering
By installing a positioning and engaging assembly in the fan coil unit, and utilizing the cooperation of a sleeve and a threaded rod, the filter screen can be quickly disassembled and installed, solving the problem of difficult filter screen replacement and improving maintenance efficiency and equipment operating performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-27
AI Technical Summary
The existing fan coil unit filters are difficult to replace and maintain, leading to increased maintenance time and affecting air quality and equipment operating efficiency.
A fan coil unit with an easy-to-replace filter screen was designed. By setting up a positioning and locking assembly, and using the cooperation of a sleeve and a threaded screw, the filter screen can be quickly disassembled and installed, simplifying the maintenance process.
It improves the efficiency of filter replacement, reduces equipment downtime, ensures smooth airflow, and extends the service life of the equipment.
Smart Images

Figure CN224050488U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the fan -coil unit technical field for heating ventilation engineering, concretely relates to a fan -coil unit for heating ventilation engineering convenient to replace filter screen. BACKGROUND
[0002] The fan -coil unit in heating ventilation engineering is a kind of equipment for air conditioning, mainly realizes the heating or cooling of indoor air through the combination of fan and coil. Its working principle is that fan inhales indoor air and exchanges heat with flowing heat medium (such as water) in the internal coil, to change the temperature of air. The main components of fan -coil unit include coil, fan, shell and control system. The heat medium flowing in the coil can be hot water or cold water, to provide heating or refrigeration effect as required. Fan is responsible for forcing air through coil to improve heat exchange efficiency. Shell is usually designed as a closed structure to reduce heat loss and improve the overall energy efficiency of equipment. Control system is used to adjust fan and heat medium flow to achieve accurate temperature control. Fan -coil unit has the characteristics of compact structure, flexible installation, high energy efficiency, etc. and is widely used in heating ventilation and air conditioning systems of various buildings.
[0003] In heating ventilation engineering, fan -coil unit as an important air conditioning equipment, its performance directly affects the comfort of indoor environment, however, the existing fan -coil unit has significant defects in filter screen replacement and maintenance, many traditional fan -coil units are complex in design, filter screen is difficult to disassemble, which causes users to face many difficulties when carrying out regular maintenance, not only increases maintenance time, but also may cause filter screen unable to be replaced in time, thereby affecting air quality and equipment operating efficiency, therefore, the fan -coil unit for heating ventilation engineering convenient to replace filter screen is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0004] In view of one or more of the above defects or improvement needs of prior art, the utility model provides a fan -coil unit for heating ventilation engineering convenient to replace filter screen, which has the advantages of quick disassembly and replacement, simplified maintenance process and prolonged service life of equipment.
[0005] To achieve the above purpose, the utility model provides a fan -coil unit for heating ventilation engineering convenient to replace filter screen, which includes fan -coil unit body, the lower end of fan -coil unit body is provided with mounting plate, the middle part of mounting plate is provided with mounting groove, and one group of positioning and clamping assemblies is respectively assembled on the inner wall of mounting groove on both sides, and filter screen plate is arranged between the two groups of positioning and clamping assemblies.
[0006] The positioning clamping assembly comprises a mounting seat, one side of the mounting seat is equipped with a mounting block, the mounting block has a sliding cavity and is provided with a sliding groove at one side, two sliding blocks are slidably arranged in the sliding cavity of the mounting block, the outer side ends of the two sliding blocks are both equipped with an insertion block, the mounting seat is equipped with positioning blocks at both ends of one side, the inner sides of the two positioning blocks are both provided with openings, the size of the insertion blocks corresponds to that of the openings, one side of each of the two sliding blocks is equipped with a connecting block, and the two connecting blocks are both located in the sliding groove at one side of the mounting block, a threaded screw rod is penetratingly arranged at one side of each of the two connecting blocks, and a sleeve is commonly sleeved between the two threaded screw rods, the inside of the sleeve is provided with right and left threads and is in meshing connection with the two threaded screw rods through the right and left threads.
[0007] As a further improvement of the utility model, four mounting rings are equipped outside the filter screen plate and are distributed in a rectangular shape, and the positioning blocks are provided with mounting openings at one side and the size of the mounting rings corresponds to that of the mounting openings.
[0008] As a further improvement of the utility model, a sliding shaft sleeve is equipped at the connecting position of the threaded screw rod and the connecting block.
[0009] As a further improvement of the utility model, limit discs are equipped at the outer side ends of the two threaded screw rods.
[0010] As a further improvement of the utility model, anti-skid lines are arranged outside the sleeve.
[0011] Overall, compared with the prior art, the above technical scheme conceived by the utility model has the beneficial effects including:
[0012] The heating and ventilation engineering fan coil of the utility model is convenient to replace the filter screen, through the cooperation between the components in the two groups of positioning clamping assemblies, the sleeve is rotated to drive the two threaded screw rods to rotate, the two sliding blocks are driven to move inward, the insertion blocks are separated from the mounting ring range, the filter screen plate can be quickly disassembled, conversely, the sleeve is reversely rotated to quickly install the filter screen plate, the operation difficulty is reduced, the quick and convenient filter screen plate replacement mode greatly improves the maintenance efficiency, the user can complete the filter screen plate replacement in a short time without additional operation steps or waiting time, thereby reducing the equipment downtime and improving the system operation efficiency, since the filter screen plate replacement becomes more convenient, the user can more easily regularly check and replace the filter screen plate, the filter screen plate is ensured not to be blocked by dust and impurities, and the air circulation is smooth. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is a schematic diagram of the overall installation structure of the utility model;
[0014] Fig. 2The utility model discloses positioning and clamping assembly, filter screen plate, mounting ring mounting structure schematic drawing for the utility model,
[0015] Fig. 3 The utility model discloses positioning and clamping assembly dismounting structure schematic drawing.
[0016] In all drawings, same reference signs represent same technical features, specifically: 1, fan coil machine body;11, mounting plate;2, positioning and clamping assembly;20, mounting seat;21, mounting block;22, sliding block;23, plug block;24, positioning block;25, connecting block;26, threaded screw;261, sliding axle sleeve;27, sleeve;28, limit disc;3, filter screen plate;31, mounting ring. DETAILED DESCRIPTION
[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0018] EMBODIMENT
[0019] By Figs. 1-3 Give, a kind of filter screen replacement convenient for heating engineering fan coil, including fan coil machine body 1, fan coil machine body 1 lower end is provided with mounting plate 11, mounting plate 11 middle part is provided with installation groove and the inner wall of installation groove two sides are respectively equipped with a set of positioning and clamping assembly 2, two sets of positioning and clamping assembly 2 are commonly provided with filter screen plate 3 between;
[0020] Positioning and clamping assembly 2 includes mounting seat 20, and mounting seat 20 one side is equipped with mounting block 21, and mounting block 21 has a sliding cavity and is provided with slide on one side, and two sliding blocks 22 are slidably arranged in the sliding cavity of mounting block 21, and the outer side end of two sliding blocks 22 is equipped with plug block 23, and mounting seat 20 one side both ends are equipped with positioning block 24, and the inner side of two positioning blocks 24 is equipped with opening, and the size of plug block 23 corresponds to the opening, and two sliding blocks 22 one side are equipped with connecting block 25, and two connecting blocks 25 are located in the slide of mounting block 21 one side, and two connecting blocks 25 one side are equipped with threaded screw 26, and sleeve 27 is commonly sleeved between two threaded screws 26, and the inside of sleeve 27 is provided with right and left screw threads and is connected by right and left screw threads and two threaded screws 26.
[0021] In the embodiment, through the cooperation between the components in the two sets of positioning clamping assemblies 2, the sleeve 27 is rotated to drive the two threaded rods 26 to rotate, and then the two sliding blocks 22 are driven to move inward, so that the plug block 23 is separated from the installation ring 31, and then the filter screen plate 3 can be quickly disassembled, and vice versa, the sleeve 27 is rotated in reverse to quickly install the filter screen plate 3, which reduces the operation difficulty, and the quick and convenient filter screen plate 3 replacement mode greatly improves the maintenance efficiency, and the user can complete the filter screen plate 3 replacement in a short time without additional operation steps or waiting time, so that the equipment downtime is reduced, and the system operation efficiency is improved, and since the filter screen plate 3 replacement becomes more convenient, the user can more easily check and replace the filter screen plate 3 regularly, so that the filter screen plate 3 is prevented from being blocked by dust and impurities, and the air circulation is smooth.
[0022] Specifically, referring to Figs. 1-3 , the filter screen plate 3 is provided with four installation rings 31, and the four installation rings 31 are distributed in a rectangular shape, and the positioning block 24 is provided with an installation opening, and the size of the installation ring 31 corresponds to the installation opening.
[0023] In the embodiment, the sleeve 27 is rotated in reverse, the installation ring 31 is inserted into the positioning block 24, so that the plug block 23 is driven and inserted into the installation ring 31, and the filter screen plate 3 can be quickly installed.
[0024] Specifically, referring to Fig. 3 , the threaded rod 26 is provided with a sliding shaft sleeve 261 at the connection position of the threaded rod 26 and the connecting block 25.
[0025] In the embodiment, the sliding shaft sleeve 261 is arranged at the connection position of the threaded rod 26 and the connecting block 25, so that the rotation of the threaded rod 26 is more smooth.
[0026] Specifically, referring to Fig. 3 , the outer side of the two threaded rods 26 is provided with a limiting disc 28.
[0027] In the embodiment, the limiting disc 28 is arranged to limit the connecting block 25, so that the connecting block 25 is prevented from exceeding the stroke range of the threaded rod 26.
[0028] Specifically, referring to Fig. 3 , the sleeve 27 is provided with anti-skid lines on the outside.
[0029] In the embodiment, the anti-skid lines are arranged on the outside of the sleeve 27, so that the friction force is improved to facilitate the rotation of the user.
[0030] The fan coil of the heating and ventilation engineering:
[0031] In actual use, when the user needs to disassemble the filter screen plate 3, first rotate the sleeve 27, so that the sleeve 27 drives the two threaded rods 26 connected by the forward and reverse threads to rotate, when the two threaded rods 26 rotate, the connecting block 25 connected with the threaded rods 26 drives the sliding block 22 at one end to move within the stroke range of the mounting block 21, and drives the insertion block 23 at one end, so that the insertion block 23 moves inward and out of the range of the mounting ring 31, thereby achieving quick disassembly of the filter screen plate 3, conversely, rotate the sleeve 27 in the opposite direction, insert the mounting ring 31 set into the positioning block 24, so that the insertion block 23 is driven and inserted into the mounting ring 31, thereby achieving quick installation of the filter screen plate 3.
[0032] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. HVAC fan-coil convenient to replace filter screen, it is characterized in to: Including fan-coil machine body (1), the lower end of the fan-coil machine body (1) is provided with mounting plate (11), the middle part of the mounting plate (11) is provided with installation slot and the inner wall of installation slot is equipped with a set of positioning and clamping assembly (2) on both sides respectively, and the filter screen plate (3) is commonly arranged between the two sets of positioning and clamping assembly (2). The positioning and clamping assembly (2) includes mounting seat (20), one side of the mounting seat (20) is equipped with mounting block (21), the mounting block (21) has a sliding cavity and is provided with a slide on one side, two sliding blocks (22) are slidably arranged in the sliding cavity of the mounting block (21), the outer side end of the two sliding blocks (22) is equipped with plug block (23), the mounting seat (20) one side both ends are equipped with positioning block (24), the inner side of the two positioning blocks (24) is opened with opening and the size of plug block (23) corresponds with opening, one side of the two sliding blocks (22) is equipped with connecting block (25) and the two connecting blocks (25) are located in the slide on one side of mounting block (21), the two connecting blocks (25) one side are provided with threaded lead screw (26), the threaded lead screw (26) is commonly sleeved with sleeve (27) between two, the inside of the sleeve (27) is provided with right and left screw threads and is engaged with two threaded lead screws (26) by right and left screw threads.
2. The filter replacement convenient heating and ventilation fan coil unit according to claim 1, wherein, The outer side of the filter screen plate (3) is equipped with four mounting rings (31) and four mounting rings (31) are distributed in rectangle, one side of the positioning block (24) is provided with mounting port and the size of mounting ring (31) corresponds with mounting port.
3. The filter replacement facilitating heating, ventilation and cooling (HVAC) unit as claimed in claim 1, wherein, The threaded lead screw (26) and connecting block (25) connection place is equipped with slide shaft sleeve (261).
4. The filter replacement convenient heating and ventilation fan coil unit according to claim 1, wherein, The outer side end of the two threaded lead screws (26) is equipped with limit disc (28).
5. The filter replacement facilitating heating, ventilation and cooling (HVAC) unit as claimed in claim 1, wherein, The outside of the sleeve (27) is provided with anti-skid line.