Ventilator and communication machine room

Abstract

The utility model discloses a ventilator and a communication machine room, which can be used for conveniently positioning a filter cartridge, improving the sealing property between the filter cartridge and a mounting ring and improving the convenience in mounting and dismounting the filter cartridge. The ventilator comprises a fan body, a mounting ring (4), a filter cartridge (5) and a limiting assembly (9). The fan body comprises a box body (1). The mounting ring (4) is fixed on the outer side wall of the box door (2), and an opening enclosed by the inner side wall of the mounting ring (4) is communicated with the ventilation hole; an annular groove (11) is formed between the outer side wall and the inner side wall of the mounting ring (4), and the inner wall surface of the annular groove (11) is matched with the inner wall surface of the filter cartridge (5). And the filter cartridge (5) is buckled on the inner wall surface of the annular groove (11) of the mounting ring (4), abuts against the bottom of the annular groove (11) and is used for filtering dust in air entering the box body (1). And the limiting assembly (9) is used for fixing the filter cartridge (5).

Description

Technical Field

[0001] The utility model specifically relates to a ventilator and a communication room. Background Art

[0002] A communication room is a building built for telecommunications operators, Internet service providers, etc. to install, maintain and operate communication equipment. A communication room is usually equipped with large communication switching equipment, optical fiber access equipment, routers, switches and other equipment. The communication room is equipped with necessary power, air conditioning, fire protection and other facilities.

[0003] The ventilator is part of the intelligent fresh air system of the communication room. Its main function is to introduce cold air from the outside into the room. The ventilator is usually used in conjunction with the exhaust fan to form an air flow cycle inside and outside the room. The ventilator is responsible for introducing new cold air into the room, and the exhaust fan is responsible for exhausting the exchanged air and hot air in the room out of the room. This cycle helps to reduce the temperature in the room, improve the heat dissipation efficiency of the equipment, and reduce the operating time of refrigeration equipment such as air conditioners, thereby reducing power consumption.

[0004] When the existing ventilator in the communication room is in use, it is usually equipped with a corresponding filter cartridge to prevent the air carrying dust from entering the communication room. When installing the filter cartridge, it is usually necessary to position and seal the filter cartridge. The existing filter cartridge structure makes the filter cartridge inconvenient to position and has poor sealing, which reduces the installation efficiency and filtering effect of the filter cartridge. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a ventilator and a communication room in view of the above-mentioned deficiencies in the prior art, which can facilitate the positioning of the filter cartridge, improve the sealing between the filter cartridge and the mounting ring, and improve the convenience in installing and disassembling the filter cartridge.

[0006] In a first aspect, an embodiment of the utility model provides a ventilator, which includes a fan body, a mounting ring, a filter cartridge and a limit assembly. The fan body includes a box body; a box door is provided on the open side of the box body, and a ventilation hole is provided on the box door. The mounting ring is fixed on the outer side wall of the box door, and the opening surrounded by the inner side wall of the mounting ring is connected to the ventilation hole; an annular groove is formed between the outer side wall and the inner side wall of the mounting ring, and the inner wall surface of the annular groove is adapted to the inner wall surface of the filter cartridge. The filter cartridge is buckled on the inner wall surface of the annular groove of the mounting ring and abuts against the bottom of the annular groove, so as to filter out dust in the air entering the box body. The limit assembly is used to fix the filter cartridge.

[0007] In some embodiments, the limiting assembly includes a U-shaped frame, two push rods and a tension spring. The U-shaped frame is arranged on the outer side wall of the box door, and the mounting ring is located within the range surrounded by the U-shaped frame; the U-shaped frame includes two symmetrically arranged L-shaped plates, each L-shaped plate includes a horizontal portion and a vertical portion connected to each other; the two horizontal portions are arranged in parallel, and the two vertical portions are respectively located at two ends of the two horizontal portions that are away from each other, and are respectively located on both sides of the mounting ring. The two push rods are respectively arranged horizontally on the two vertical portions. The tension spring is located between the two horizontal portions, and its two ends are respectively connected to the two horizontal portions. The tension spring can drive the two horizontal portions to move in a direction close to each other, so as to drive the vertical portion to move, so that each push rod passes through the outer side wall of the mounting ring and abuts against the outer wall of the filter cartridge.

[0008] In some embodiments, the position limiting assembly further comprises a U-shaped shell. The U-shaped shell is arranged on the outer side wall of the box door, the horizontal portion of the U-shaped frame is slidably arranged in the U-shaped shell, and the two stop rods penetrate the U-shaped shell.

[0009] In some embodiments, the limit assembly further comprises two pull plates. The two pull plates are respectively fixed on the horizontal parts of the two L-shaped plates. Two slide grooves are provided on the upper side wall of the bottom of the U-shaped shell, and each pull plate extends out of the corresponding slide groove.

[0010] In some embodiments, two opposite sides of the two pull plates are provided with grooves, and a flexible buffer pad is disposed in each of the grooves.

[0011] In some embodiments, the ventilator further comprises two first arc-shaped clamping plates, which are symmetrically arranged at opposite ends of the annular groove in the vertical direction. The area between each first arc-shaped clamping plate and the inner side wall of the mounting ring forms a first arc-shaped groove, the shape of the first arc-shaped groove is adapted to the shape of the outer wall of the filter cartridge, and the side wall of the filter cartridge is inserted into the first arc-shaped groove.

[0012] In some embodiments, the ventilator further comprises two second arc-shaped clamping plates, which are symmetrically arranged at opposite ends of the annular groove. The area between each second arc-shaped clamping plate and the inner side wall of the mounting ring forms a second arc-shaped groove, the shape of the second arc-shaped groove matches the shape of the outer wall of the filter cartridge, and the side wall of the filter cartridge is inserted into the second arc-shaped groove. After each of the abutting rods passes through the outer side wall of the mounting ring, it also passes through the corresponding second arc-shaped clamping plate and abuts against the outer wall of the filter cartridge.

[0013] In some embodiments, a plurality of mounting plates are disposed on the outer side of the box body, and the first fastener passes through the mounting plates to fix the box body at a preset position.

[0014] In some embodiments, each of the mounting plates is provided with a first waist-shaped hole and a second waist-shaped hole, and the extension directions of the first waist-shaped hole and the second waist-shaped hole intersect. In the first waist-shaped hole and the second waist-shaped hole, the first fastener passes through one of them to fix the mounting plate at a preset position, and the second fastener passes through the other one to fix the mounting plate on the box.

[0015] Therefore, the ventilator provided by the embodiment of the utility model can filter out dust in the air entering the box body by setting a filter cartridge. By forming an annular groove between the outer side wall and the inner side wall of the mounting ring, and making the inner wall surface of the annular groove match the inner wall surface of the filter cartridge, after the filter cartridge is buckled on the inner wall surface of the annular groove of the mounting ring, the inner wall surface of the annular groove can be closely contacted with the inner wall surface of the filter cartridge, thereby improving the sealing between the inner wall surface of the annular groove and the inner wall surface of the filter cartridge; by making the filter cartridge abut against the bottom of the annular groove, the sealing between the filter cartridge and the bottom of the annular groove can be achieved, further improving the sealing degree between the mounting ring and the filter cartridge, thereby avoiding the filtering effect of the filter cartridge being affected by air leakage; and the inner wall surface of the annular groove can also guide and position the insertion of the filter cartridge, making it more convenient to install the filter cartridge on the mounting ring, which is conducive to improving the installation efficiency of the filter cartridge. The limit assembly is used to fix the filter cartridge, so when installing and removing the filter cartridge, only the limit assembly needs to be operated to conveniently install and remove the filter cartridge, thereby improving the convenience of installing and removing the filter cartridge.

[0016] In a second aspect, an embodiment of the utility model further provides a communication room, which includes an equipment room and the ventilator in the first aspect. The equipment room is used to accommodate communication equipment. The ventilator is fixed to the wall of the equipment room and is used to supply air to the inside of the equipment room.

[0017] The communication room provided by the embodiment of the utility model has the same beneficial effects as the above-mentioned ventilator, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : A structural diagram of a ventilator provided by an embodiment of the utility model;

[0019] Figure 2 : A front view of a ventilator provided by an embodiment of the utility model;

[0020] Figure 3 : A structural diagram of a mounting ring and a U-shaped shell provided in an embodiment of the utility model;

[0021] Figure 4 : A structural diagram of a fan in a box provided by an embodiment of the utility model;

[0022] Figure 5 : A structural diagram of a U-shaped frame provided by an embodiment of the utility model;

[0023] Figure 6 : A structural diagram of a mounting plate provided for an embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] Embodiment 1:

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, the embodiment of the utility model provides a ventilator, which is applied to a ventilation system to blow air into a room to speed up the air flow rate in the room. The ventilator includes a fan body, a mounting ring 4, a filter cartridge 5 and a limit assembly 9.

[0027] like Figure 1 As shown, the fan body includes a box body 1; a box door 2 is arranged on the opening side of the box body 1, and a ventilation hole is opened on the box door 2.

[0028] like Figure 4 As shown, the fan body further includes a fan 8 , and the fan 8 is arranged in the box body 1 .

[0029] Exemplarily, an air outlet is provided on the side (the air outlet side) opposite to the opening side of the box 1. After the fan 8 is powered on and starts working, the air outside the box 1 can be sucked into the box 1 through the ventilation holes provided on the door 2 and blown out through the air outlet.

[0030] Combination Figure 1 , Figure 2 and Figure 3 The mounting ring 4 is fixed on the outer wall of the door 2, and the opening surrounded by the inner wall of the mounting ring 4 is connected to the ventilation hole. An annular groove 11 is formed between the outer wall and the inner wall of the mounting ring 4, and the inner wall surface of the annular groove 11 is matched with the inner wall surface of the filter cartridge 5. The filter cartridge 5 is buckled on the inner wall surface of the annular groove 11 of the mounting ring 4 and abuts against the bottom of the annular groove 11 to filter dust in the air entering the box body 1. The stopper assembly 9 is used to fix the filter cartridge 5.

[0031] Exemplarily, a plurality of fixing plates 10 are disposed on the outer side of the mounting ring 4, and the fixing plates 10 are fixed to the outer side wall of the door 2 by fasteners. The air outside the box body 1 can enter the inside of the box body 1 through the openings and ventilation holes formed by the inner side wall of the mounting ring 4.

[0032] The inner wall surface of the annular groove 11 is adapted to the inner wall surface of the filter cartridge 5 , which means that after the filter cartridge 5 is buckled onto the inner wall surface of the annular groove 11 of the mounting ring 4 , the inner wall surface of the annular groove 11 and the inner wall surface of the filter cartridge 5 can be in close contact.

[0033] In this way, the sealing performance between the inner wall surface of the annular groove 11 and the inner wall surface of the filter cartridge 5 can be improved, and air leakage can be avoided to affect the filtering effect of the filter cartridge 5. In addition, the inner wall surface of the annular groove 11 can also guide and position the insertion of the filter cartridge 5, making it more convenient to install the filter cartridge 5 on the mounting ring 4, which is conducive to improving the installation efficiency of the filter cartridge 5.

[0034] After the filter cartridge 5 abuts against the bottom of the annular groove 11 , a seal is achieved between the filter cartridge 5 and the bottom of the annular groove 11 , further improving the sealing degree between the mounting ring 4 and the filter cartridge 5 to avoid air leakage and affect the filtering effect of the filter cartridge 5 .

[0035] After the limiting assembly 9 fixes the filter cartridge 5, the filter cartridge 5 can be prevented from falling off the mounting ring 4 due to external force, thereby ensuring the filtering effect of the filter cartridge 5 on the air entering the housing 1. In addition, when installing and removing the filter cartridge 5, the filter cartridge 5 can be conveniently installed and removed by only operating the limiting assembly 9, which improves the convenience of installing and removing the filter cartridge 5.

[0036] Therefore, the ventilator provided by the embodiment of the utility model can filter out dust in the air entering the housing 1 by setting the filter cartridge 5. By forming an annular groove 11 between the outer side wall and the inner side wall of the mounting ring 4, and making the inner wall surface of the annular groove 11 match the inner wall surface of the filter cartridge 5, after the filter cartridge 5 is buckled on the inner wall surface of the annular groove 11 of the mounting ring 4, the inner wall surface of the annular groove 11 can be closely contacted with the inner wall surface of the filter cartridge 5, thereby improving the sealing performance between the inner wall surface of the annular groove 11 and the inner wall surface of the filter cartridge 5; by making the filter cartridge 5 abut against the bottom of the annular groove 11, the sealing between the filter cartridge 5 and the bottom of the annular groove 11 can be achieved, further improving the sealing degree between the mounting ring 4 and the filter cartridge 5, thereby avoiding the filtering effect of the filter cartridge 5 being affected by air leakage; and the inner wall surface of the annular groove 11 can also guide and position the insertion of the filter cartridge 5, making it more convenient to install the filter cartridge 5 on the mounting ring 4, which is conducive to improving the installation efficiency of the filter cartridge 5. The limiting assembly 9 is used to fix the filter cartridge 5 . Therefore, when installing and removing the filter cartridge 5 , the filter cartridge 5 can be conveniently installed and removed by only operating the limiting assembly 9 , thereby improving the convenience of installing and removing the filter cartridge 5 .

[0037] In the prior art, the filter cartridge 5 is usually installed on the housing 1 by fasteners such as bolts, which results in the need to install and remove fasteners such as bolts when installing and removing the filter cartridge 5. The operation of installing and removing fasteners such as bolts is complicated and time-consuming, which affects the efficiency of installing and removing the filter cartridge 5.

[0038] In some embodiments, in combination Figure 2 , Figure 3 and Figure 5 The limiting assembly includes a U-shaped frame, two push rods 905 and a tension spring 904. The U-shaped frame is arranged on the outer side wall of the box door 2, and the mounting ring 4 is located within the range surrounded by the U-shaped frame; the U-shaped frame includes two symmetrically arranged L-shaped plates, each L-shaped plate includes a horizontal portion and a vertical portion connected to each other; the two horizontal portions are arranged in parallel, and the two vertical portions are respectively located at two ends of the two horizontal portions that are far away from each other, and are respectively located on both sides of the mounting ring 4. The two push rods 905 are respectively arranged horizontally on the two vertical portions. The tension spring 904 is located between the two horizontal portions, and its two ends are respectively connected to the two horizontal portions. The tension spring 904 can drive the two horizontal portions to move in a direction close to each other, so as to drive the vertical portion to move, so that each push rod 905 passes through the outer side wall of the mounting ring 4 and abuts against the outer wall of the filter cartridge 5.

[0039] like Figure 5 As shown, in each L-shaped plate, the horizontal portion and the vertical portion are connected to each other so that the horizontal portion and the vertical portion can move synchronously.

[0040] Exemplarily, a through hole is provided on the outer wall of the mounting ring 4 for the stop rod 905 to pass through.

[0041] Combination Figure 2 and Figure 5 When the filter cartridge 5 needs to be removed, the two horizontal parts are moved away from each other, and the two vertical parts are respectively driven to move away from each other, thereby driving the two abutment rods 905 to move away from each other. Therefore, the abutment rods 905 no longer abut against the outer wall of the filter cartridge 5, and the filter cartridge 5 can be easily removed from the mounting ring 4.

[0042] When the filter cartridge 5 needs to be installed, the two push rods 905 are moved away from each other according to the above operation to prevent the two push rods 905 from affecting the insertion of the filter cartridge 5; thereafter, the filter cartridge 5 can be snapped onto the inner wall surface of the annular groove 11 of the mounting ring 4, and then the two horizontal parts are released. Under the stretching action of the stretching spring 904, the stretching spring 904 can drive the two horizontal parts to move toward each other and drive the vertical part to move, so that each push rod 905 passes through the outer side wall of the mounting ring 4 and abuts against the outer wall of the filter cartridge 5, thereby keeping the filter cartridge 5 fixed.

[0043] Therefore, the positions of the two abutting rods 905 can be controlled by operating the L-shaped plate to control whether to limit the outer wall of the filter cartridge 5, thereby facilitating the installation and removal of the filter cartridge 5; the tension spring 904 can also maintain the abutting state between the abutting rod 905 and the outer wall of the filter cartridge 5 to keep the filter cartridge 5 fixed. Compared with the prior art, the convenience of installing and removing the filter cartridge 5 is improved, thereby facilitating the operator to remove the filter cartridge 5 for cleaning.

[0044] In some embodiments, in combination Figure 2 , Figure 3 and Figure 5 The limiting assembly 9 further comprises a U-shaped shell 901 . The U-shaped shell 901 is arranged on the outer side wall of the box door 2 , the horizontal part of the U-shaped frame is slidably arranged in the U-shaped shell, and two stop rods 905 penetrate the U-shaped shell 901 .

[0045] Exemplarily, the U-shaped shell 901 is fixed to the outer side wall of the door 2 by fasteners.

[0046] Exemplarily, the U-shaped shell 901 includes a horizontal section and two vertical sections, and the two vertical sections are respectively located at the two ends of the horizontal section. The two horizontal parts of the U-shaped frame are both horizontally slidably arranged in the horizontal section of the U-shaped shell 901, and the two vertical parts of the U-shaped frame are respectively arranged in the two vertical sections of the U-shaped shell 901. The horizontal part of the U-shaped frame can drive the corresponding vertical part to move horizontally in the vertical section of the U-shaped shell 901. The two support rods 905 respectively horizontally penetrate the two vertical sections of the U-shaped shell 901.

[0047] Through the above arrangement, the U-shaped frame can be guided by the U-shaped shell 901 to move the two horizontal parts of the U-shaped frame horizontally, and finally the two support rods 905 can move horizontally. The U-shaped shell 901 can also protect the U-shaped frame inside it to prevent dust and other debris from affecting the normal movement of the U-shaped frame.

[0048] In some embodiments, in combination Figure 2 , Figure 3 and Figure 5 The limiting assembly 9 further includes two pull plates 906. The two pull plates 906 are respectively fixed on the horizontal parts of the two L-shaped plates. Two slide grooves are provided on the upper side wall of the bottom of the U-shaped shell, and each pull plate 906 extends out of the corresponding slide groove.

[0049] The pull plate 906 can facilitate the operator to operate the horizontal part of the L-shaped plate, and the slide groove can limit the sliding range and direction of the pull plate 906, thereby limiting the moving range and direction of the two support rods 905 through the two L-shaped plates respectively, so that the moving range and direction of the two support rods 905 meet the fixing requirements of the filter cartridge 5, and avoid the sliding range of the pull plate 906 being too large to cause the tension spring 904 to be over-stretched and fail.

[0050] In some embodiments, two opposite sides of the two pull plates 906 are provided with grooves, and a flexible buffer pad is disposed in each groove.

[0051] For example, the shape of the groove can be an arc groove, so that the operator's fingers can be inserted in. The flexible cushion can be a cotton pad or a sponge pad, etc., to improve the comfort of the operator when operating the pull plate 906 through the groove.

[0052] Through the above arrangement, it is convenient for the operator to push the two pull plates 906 outward at the same time with one hand, thereby improving the comfort of the operator.

[0053] In some embodiments, Figure 2 and Figure 3 As shown, the ventilator further includes two first arc-shaped clamping plates 6, which are symmetrically arranged at opposite ends of the annular groove 11 in the vertical direction. The area between each first arc-shaped clamping plate 6 and the inner side wall of the mounting ring 4 forms a first arc-shaped groove, the shape of which matches the shape of the outer wall of the filter cartridge 5, and the side wall of the filter cartridge 5 is inserted into the first arc-shaped groove.

[0054] Exemplarily, the width of the first arc-shaped groove is the same as the thickness of the outer wall of the filter cartridge 5 , so that the outer wall of the filter cartridge 5 can be just inserted into the first arc-shaped groove.

[0055] During the process of installing the filter cartridge 5 on the mounting ring 4, the first arc-shaped groove can assist in positioning the filter cartridge 5; after the filter cartridge 5 is installed on the mounting ring 4, the first arc-shaped clamping plate 6 can apply a certain pressure to the side wall of the filter cartridge 5, so that the filter cartridge 5 can be more stably installed on the mounting ring 4.

[0056] In some embodiments, Figure 2 and Figure 3 As shown, the ventilator further includes two second arc-shaped clamping plates 7, which are symmetrically arranged at opposite ends of the annular groove 11 in the transverse direction. The area between each second arc-shaped clamping plate 7 and the inner side wall of the mounting ring 4 forms a second arc-shaped groove, and the shape of the second arc-shaped groove is adapted to the shape of the outer wall of the filter cartridge 5, and the side wall of the filter cartridge 5 is inserted into the second arc-shaped groove. After each abutting rod 905 passes through the outer side wall of the mounting ring 4, it also passes through the corresponding second arc-shaped clamping plate 7 and abuts against the outer wall of the filter cartridge 5.

[0057] Exemplarily, the width of the second arc-shaped groove is the same as the thickness of the outer wall of the filter cartridge 5 , so that the outer wall of the filter cartridge 5 can be just inserted into the second arc-shaped groove.

[0058] Exemplarily, each second arc-shaped clamping plate 7 is provided with a through hole for the corresponding stop rod 905 to pass through.

[0059] During the process of installing the filter cartridge 5 on the mounting ring 4, the second arc-shaped groove can assist in positioning the filter cartridge 5; after the filter cartridge 5 is installed on the mounting ring 4, the second arc-shaped clamping plate 6 can apply a certain pressure to the side wall of the filter cartridge 5, so that the filter cartridge 5 can be more stably installed on the mounting ring 4.

[0060] In some embodiments, Figure 1 and Figure 2 As shown, a plurality of mounting plates 3 are arranged on the outer side of the box body 1, and the first fastener passes through the mounting plates 3 to fix the box body 1 at a preset position.

[0061] Exemplarily, the mounting plate 3 may be fixed on the box body 1, or the mounting plate 3 may be detachably disposed on the box body 1 via a fastener.

[0062] Exemplarily, a mounting hole adapted to the first fastener is opened on the mounting plate 3, and the fastener fixes the mounting plate 3 at a preset position after passing through the mounting hole.

[0063] Exemplarily, a plurality of mounting plates 3 are respectively arranged on two opposite sides of the edge of the box body 1 .

[0064] Through the above arrangement, the box body 1 can be fixed by the mounting plate 3 .

[0065] In some embodiments, Figure 6As shown, each mounting plate 3 is provided with a first waist-shaped hole and a second waist-shaped hole, and the extension directions of the first waist-shaped hole and the second waist-shaped hole intersect. The first fastener passes through one of the first waist-shaped hole and the second waist-shaped hole to fix the mounting plate 3 at a preset position, and the second fastener passes through the other to fix the mounting plate 3 on the box body 1.

[0066] For example, the first waist-shaped hole may extend in a horizontal direction, and the second waist-shaped hole may extend in a vertical direction. The first fastener passes through the first waist-shaped hole to fix the mounting plate 3 at a preset position, and the second fastener passes through the second waist-shaped hole to fix the mounting plate 3 on the box body 1.

[0067] Exemplarily, in the process of installing the box 1 on the wall, the second fastener first passes through the second waist-shaped hole to fix the mounting plate 3 on the box 1. At this time, the position of the second fastener in the second waist-shaped hole can be adjusted to adjust the position of the mounting plate 3 relative to the box 1; then the first fastener passes through the first waist-shaped hole to fix the mounting plate 3 on the wall. At this time, the position of the first fastener in the first waist-shaped hole can be adjusted to adjust the position of the mounting plate 3 relative to the wall, thereby finally achieving the adjustment of the position of the box 1 relative to the wall.

[0068] Through the above arrangement, the position of the box 1 can be fine-tuned during the installation of the box 1 or after the installation of the box 1 is completed.

[0069] In a second aspect, an embodiment of the utility model further provides a communication room, which includes an equipment room and the ventilator in the first aspect. The equipment room is used to accommodate communication equipment. The ventilator is fixed on the wall of the equipment room and is used to supply air to the inside of the equipment room.

[0070] Communication equipment may include power supply equipment and network equipment, etc.

[0071] Exemplarily, an air inlet hole is opened on the wall of the equipment room, and the ventilator is fixed at the air inlet hole.

[0072] Through the above arrangement, the ventilator can supply air to the equipment room after being powered on, so as to introduce outdoor cold air into the equipment room and cool down the communication equipment in the equipment room. The filter cartridge 5 can also filter the cold air entering the equipment room. In addition, the sealing performance between the filter cartridge 5 and the mounting ring 4 of the ventilator is good, which can ensure the filtering effect of the cold air entering the equipment room. The filter cartridge 5 is easy to install and remove, and when there is a lot of dust on the filter cartridge 5, it is convenient for the operator to remove the filter cartridge 5 and clean it.

[0073] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A ventilator, characterized in that: include: The fan body comprises a box body (1); a box door (2) is arranged on the opening side of the box body (1), and a ventilation hole is opened on the box door (2); A mounting ring (4) is fixed on the outer wall of the chamber door (2), and an opening formed by the inner wall of the mounting ring (4) is connected to the ventilation hole; an annular groove (11) is formed between the outer wall and the inner wall of the mounting ring (4), and the inner wall surface of the annular groove (11) is matched with the inner wall surface of the filter cartridge (5); A filter cartridge (5) is buckled onto the inner wall surface of the annular groove (11) of the mounting ring (4) and abuts against the bottom of the annular groove (11), and is used to filter out dust in the air entering the box body (1); and, A limiting assembly (9) is used to fix the filter cartridge (5).

2. The ventilator according to claim 1, characterized in that The limiting assembly comprises a U-shaped frame, two support rods (905) and a tension spring (904); The U-shaped frame is arranged on the outer side wall of the box door (2), and the mounting ring (4) is located within the range surrounded by the U-shaped frame; the U-shaped frame comprises two symmetrically arranged L-shaped plates, each L-shaped plate comprises a horizontal portion and a vertical portion connected to each other; the two horizontal portions are arranged in parallel, and the two vertical portions are respectively located at two ends of the two horizontal portions that are far away from each other, and are respectively located on both sides of the mounting ring (4); The two support rods (905) are respectively arranged horizontally on the two vertical parts; The tension spring (904) is located between the two horizontal parts, and its two ends are respectively connected to the two horizontal parts. The tension spring (904) can drive the two horizontal parts to move towards each other, so as to drive the vertical part to move, so that each of the abutment rods (905) passes through the outer wall of the mounting ring (4) and abuts against the outer wall of the filter cylinder (5).

3. The ventilator according to claim 2, characterized in that The limiting assembly (9) further comprises a U-shaped shell (901); The U-shaped shell (901) is arranged on the outer side wall of the box door (2), the horizontal part of the U-shaped frame is slidably arranged in the U-shaped shell, and the two support rods (905) penetrate the U-shaped shell (901).

4. The ventilator according to claim 3, characterized in that The limiting assembly (9) further comprises two pull plates (906); The two pulling plates (906) are respectively fixed on the horizontal parts of the two L-shaped plates; Two slide grooves are provided on the upper side wall of the bottom of the U-shaped shell, and each pull plate (906) extends out of the corresponding slide groove.

5. The ventilator according to claim 4, characterized in that Two opposite sides of the two pull plates (906) are provided with grooves, and a flexible buffer pad is arranged in each of the grooves.

6. The ventilator according to claim 1, characterized in that It also includes two first arc-shaped clamping plates (6), which are symmetrically arranged at two opposite ends of the annular groove (11) in the vertical direction; A first arc-shaped groove is formed in the area between each of the first arc-shaped clamping plates (6) and the inner side wall of the mounting ring (4), the shape of the first arc-shaped groove being adapted to the shape of the outer wall of the filter cartridge (5), and the side wall of the filter cartridge (5) being inserted into the first arc-shaped groove.

7. The ventilator according to claim 2, characterized in that It also includes two second arc-shaped clamping plates (7), which are symmetrically arranged at opposite ends of the annular groove (11) in the transverse direction; A second arc-shaped groove is formed in the area between each second arc-shaped clamping plate (7) and the inner side wall of the mounting ring (4), the shape of the second arc-shaped groove is adapted to the shape of the outer wall of the filter cartridge (5), and the side wall of the filter cartridge (5) is inserted into the second arc-shaped groove; After each of the abutting rods (905) passes through the outer side wall of the mounting ring (4), it also passes through the corresponding second arc-shaped clamping plate (7) to abut against the outer wall of the filter cartridge (5).

8. The ventilator according to claim 1, characterized in that A plurality of mounting plates (3) are arranged on the outside of the box body (1), and the first fastener passes through the mounting plates (3) to fix the box body (1) at a preset position.

9. The ventilator according to claim 8, characterized in that Each of the mounting plates (3) is provided with a first waist-shaped hole and a second waist-shaped hole, and the extension directions of the first waist-shaped hole and the second waist-shaped hole intersect; In the first waist-shaped hole and the second waist-shaped hole, the first fastener passes through one of them to fix the mounting plate (3) at a preset position, and the second fastener passes through the other one to fix the mounting plate (3) on the box body (1).

10. A communication room, characterized in that: include: Equipment room, used to accommodate communication equipment; and, The ventilator according to any one of claims 1 to 9 is fixed to the wall of the equipment room and is used to supply air to the interior of the equipment room.

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